diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 70196a4..494de1b 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -55,93 +55,88 @@
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
 /* Top-level Connection ID API */
 
-int mbedtls_ssl_conf_cid( mbedtls_ssl_config *conf,
-                          size_t len,
-                          int ignore_other_cid )
+int mbedtls_ssl_conf_cid(mbedtls_ssl_config *conf,
+                         size_t len,
+                         int ignore_other_cid)
 {
-    if( len > MBEDTLS_SSL_CID_IN_LEN_MAX )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (len > MBEDTLS_SSL_CID_IN_LEN_MAX) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    if( ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_FAIL &&
-        ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_IGNORE )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_FAIL &&
+        ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_IGNORE) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     conf->ignore_unexpected_cid = ignore_other_cid;
     conf->cid_len = len;
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_set_cid( mbedtls_ssl_context *ssl,
-                         int enable,
-                         unsigned char const *own_cid,
-                         size_t own_cid_len )
+int mbedtls_ssl_set_cid(mbedtls_ssl_context *ssl,
+                        int enable,
+                        unsigned char const *own_cid,
+                        size_t own_cid_len)
 {
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     ssl->negotiate_cid = enable;
-    if( enable == MBEDTLS_SSL_CID_DISABLED )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Disable use of CID extension." ) );
-        return( 0 );
+    if (enable == MBEDTLS_SSL_CID_DISABLED) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Disable use of CID extension."));
+        return 0;
     }
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Enable use of CID extension." ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "Own CID", own_cid, own_cid_len );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("Enable use of CID extension."));
+    MBEDTLS_SSL_DEBUG_BUF(3, "Own CID", own_cid, own_cid_len);
 
-    if( own_cid_len != ssl->conf->cid_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "CID length %u does not match CID length %u in config",
-                                    (unsigned) own_cid_len,
-                                    (unsigned) ssl->conf->cid_len ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (own_cid_len != ssl->conf->cid_len) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("CID length %u does not match CID length %u in config",
+                                  (unsigned) own_cid_len,
+                                  (unsigned) ssl->conf->cid_len));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    memcpy( ssl->own_cid, own_cid, own_cid_len );
+    memcpy(ssl->own_cid, own_cid, own_cid_len);
     /* Truncation is not an issue here because
      * MBEDTLS_SSL_CID_IN_LEN_MAX at most 255. */
     ssl->own_cid_len = (uint8_t) own_cid_len;
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_get_peer_cid( mbedtls_ssl_context *ssl,
-                     int *enabled,
-                     unsigned char peer_cid[ MBEDTLS_SSL_CID_OUT_LEN_MAX ],
-                     size_t *peer_cid_len )
+int mbedtls_ssl_get_peer_cid(mbedtls_ssl_context *ssl,
+                             int *enabled,
+                             unsigned char peer_cid[MBEDTLS_SSL_CID_OUT_LEN_MAX],
+                             size_t *peer_cid_len)
 {
     *enabled = MBEDTLS_SSL_CID_DISABLED;
 
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ||
-        ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ||
+        ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     /* We report MBEDTLS_SSL_CID_DISABLED in case the CID extensions
      * were used, but client and server requested the empty CID.
      * This is indistinguishable from not using the CID extension
      * in the first place. */
-    if( ssl->transform_in->in_cid_len  == 0 &&
-        ssl->transform_in->out_cid_len == 0 )
-    {
-        return( 0 );
+    if (ssl->transform_in->in_cid_len  == 0 &&
+        ssl->transform_in->out_cid_len == 0) {
+        return 0;
     }
 
-    if( peer_cid_len != NULL )
-    {
+    if (peer_cid_len != NULL) {
         *peer_cid_len = ssl->transform_in->out_cid_len;
-        if( peer_cid != NULL )
-        {
-            memcpy( peer_cid, ssl->transform_in->out_cid,
-                    ssl->transform_in->out_cid_len );
+        if (peer_cid != NULL) {
+            memcpy(peer_cid, ssl->transform_in->out_cid,
+                   ssl->transform_in->out_cid_len);
         }
     }
 
     *enabled = MBEDTLS_SSL_CID_ENABLED;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
@@ -156,31 +151,30 @@
  *    } MaxFragmentLength;
  * and we add 0 -> extension unused
  */
-static unsigned int ssl_mfl_code_to_length( int mfl )
+static unsigned int ssl_mfl_code_to_length(int mfl)
 {
-    switch( mfl )
-    {
-    case MBEDTLS_SSL_MAX_FRAG_LEN_NONE:
-        return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
-    case MBEDTLS_SSL_MAX_FRAG_LEN_512:
-        return 512;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_1024:
-        return 1024;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_2048:
-        return 2048;
-    case MBEDTLS_SSL_MAX_FRAG_LEN_4096:
-        return 4096;
-    default:
-        return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
+    switch (mfl) {
+        case MBEDTLS_SSL_MAX_FRAG_LEN_NONE:
+            return MBEDTLS_TLS_EXT_ADV_CONTENT_LEN;
+        case MBEDTLS_SSL_MAX_FRAG_LEN_512:
+            return 512;
+        case MBEDTLS_SSL_MAX_FRAG_LEN_1024:
+            return 1024;
+        case MBEDTLS_SSL_MAX_FRAG_LEN_2048:
+            return 2048;
+        case MBEDTLS_SSL_MAX_FRAG_LEN_4096:
+            return 4096;
+        default:
+            return MBEDTLS_TLS_EXT_ADV_CONTENT_LEN;
     }
 }
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
-int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
-                              const mbedtls_ssl_session *src )
+int mbedtls_ssl_session_copy(mbedtls_ssl_session *dst,
+                             const mbedtls_ssl_session *src)
 {
-    mbedtls_ssl_session_free( dst );
-    memcpy( dst, src, sizeof( mbedtls_ssl_session ) );
+    mbedtls_ssl_session_free(dst);
+    memcpy(dst, src, sizeof(mbedtls_ssl_session));
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
     dst->ticket = NULL;
@@ -189,34 +183,33 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( src->peer_cert != NULL )
-    {
+    if (src->peer_cert != NULL) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-        dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) );
-        if( dst->peer_cert == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+        dst->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
+        if (dst->peer_cert == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        mbedtls_x509_crt_init( dst->peer_cert );
+        mbedtls_x509_crt_init(dst->peer_cert);
 
-        if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p,
-                                        src->peer_cert->raw.len ) ) != 0 )
-        {
-            mbedtls_free( dst->peer_cert );
+        if ((ret = mbedtls_x509_crt_parse_der(dst->peer_cert, src->peer_cert->raw.p,
+                                              src->peer_cert->raw.len)) != 0) {
+            mbedtls_free(dst->peer_cert);
             dst->peer_cert = NULL;
-            return( ret );
+            return ret;
         }
     }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( src->peer_cert_digest != NULL )
-    {
+    if (src->peer_cert_digest != NULL) {
         dst->peer_cert_digest =
-            mbedtls_calloc( 1, src->peer_cert_digest_len );
-        if( dst->peer_cert_digest == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+            mbedtls_calloc(1, src->peer_cert_digest_len);
+        if (dst->peer_cert_digest == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        memcpy( dst->peer_cert_digest, src->peer_cert_digest,
-                src->peer_cert_digest_len );
+        memcpy(dst->peer_cert_digest, src->peer_cert_digest,
+               src->peer_cert_digest_len);
         dst->peer_cert_digest_type = src->peer_cert_digest_type;
         dst->peer_cert_digest_len = src->peer_cert_digest_len;
     }
@@ -225,35 +218,36 @@
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    if( src->ticket != NULL )
-    {
-        dst->ticket = mbedtls_calloc( 1, src->ticket_len );
-        if( dst->ticket == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if (src->ticket != NULL) {
+        dst->ticket = mbedtls_calloc(1, src->ticket_len);
+        if (dst->ticket == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        memcpy( dst->ticket, src->ticket, src->ticket_len );
+        memcpy(dst->ticket, src->ticket, src->ticket_len);
     }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_old )
+static int resize_buffer(unsigned char **buffer, size_t len_new, size_t *len_old)
 {
-    unsigned char* resized_buffer = mbedtls_calloc( 1, len_new );
-    if( resized_buffer == NULL )
+    unsigned char *resized_buffer = mbedtls_calloc(1, len_new);
+    if (resized_buffer == NULL) {
         return -1;
+    }
 
     /* We want to copy len_new bytes when downsizing the buffer, and
      * len_old bytes when upsizing, so we choose the smaller of two sizes,
      * to fit one buffer into another. Size checks, ensuring that no data is
      * lost, are done outside of this function. */
-    memcpy( resized_buffer, *buffer,
-            ( len_new < *len_old ) ? len_new : *len_old );
-    mbedtls_platform_zeroize( *buffer, *len_old );
-    mbedtls_free( *buffer );
+    memcpy(resized_buffer, *buffer,
+           (len_new < *len_old) ? len_new : *len_old);
+    mbedtls_platform_zeroize(*buffer, *len_old);
+    mbedtls_free(*buffer);
 
     *buffer = resized_buffer;
     *len_old = len_new;
@@ -261,60 +255,49 @@
     return 0;
 }
 
-static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing,
-                                    size_t in_buf_new_len,
-                                    size_t out_buf_new_len )
+static void handle_buffer_resizing(mbedtls_ssl_context *ssl, int downsizing,
+                                   size_t in_buf_new_len,
+                                   size_t out_buf_new_len)
 {
     int modified = 0;
     size_t written_in = 0, iv_offset_in = 0, len_offset_in = 0;
     size_t written_out = 0, iv_offset_out = 0, len_offset_out = 0;
-    if( ssl->in_buf != NULL )
-    {
+    if (ssl->in_buf != NULL) {
         written_in = ssl->in_msg - ssl->in_buf;
         iv_offset_in = ssl->in_iv - ssl->in_buf;
         len_offset_in = ssl->in_len - ssl->in_buf;
-        if( downsizing ?
+        if (downsizing ?
             ssl->in_buf_len > in_buf_new_len && ssl->in_left < in_buf_new_len :
-            ssl->in_buf_len < in_buf_new_len )
-        {
-            if( resize_buffer( &ssl->in_buf, in_buf_new_len, &ssl->in_buf_len ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "input buffer resizing failed - out of memory" ) );
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating in_buf to %" MBEDTLS_PRINTF_SIZET,
-                                            in_buf_new_len ) );
+            ssl->in_buf_len < in_buf_new_len) {
+            if (resize_buffer(&ssl->in_buf, in_buf_new_len, &ssl->in_buf_len) != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("input buffer resizing failed - out of memory"));
+            } else {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("Reallocating in_buf to %" MBEDTLS_PRINTF_SIZET,
+                                          in_buf_new_len));
                 modified = 1;
             }
         }
     }
 
-    if( ssl->out_buf != NULL )
-    {
+    if (ssl->out_buf != NULL) {
         written_out = ssl->out_msg - ssl->out_buf;
         iv_offset_out = ssl->out_iv - ssl->out_buf;
         len_offset_out = ssl->out_len - ssl->out_buf;
-        if( downsizing ?
+        if (downsizing ?
             ssl->out_buf_len > out_buf_new_len && ssl->out_left < out_buf_new_len :
-            ssl->out_buf_len < out_buf_new_len )
-        {
-            if( resize_buffer( &ssl->out_buf, out_buf_new_len, &ssl->out_buf_len ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "output buffer resizing failed - out of memory" ) );
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating out_buf to %" MBEDTLS_PRINTF_SIZET,
-                                            out_buf_new_len ) );
+            ssl->out_buf_len < out_buf_new_len) {
+            if (resize_buffer(&ssl->out_buf, out_buf_new_len, &ssl->out_buf_len) != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("output buffer resizing failed - out of memory"));
+            } else {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("Reallocating out_buf to %" MBEDTLS_PRINTF_SIZET,
+                                          out_buf_new_len));
                 modified = 1;
             }
         }
     }
-    if( modified )
-    {
+    if (modified) {
         /* Update pointers here to avoid doing it twice. */
-        mbedtls_ssl_reset_in_out_pointers( ssl );
+        mbedtls_ssl_reset_in_out_pointers(ssl);
         /* Fields below might not be properly updated with record
          * splitting or with CID, so they are manually updated here. */
         ssl->out_msg = ssl->out_buf + written_out;
@@ -333,10 +316,10 @@
  */
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl3_prf( const unsigned char *secret, size_t slen,
-                     const char *label,
-                     const unsigned char *random, size_t rlen,
-                     unsigned char *dstbuf, size_t dlen )
+static int ssl3_prf(const unsigned char *secret, size_t slen,
+                    const char *label,
+                    const unsigned char *random, size_t rlen,
+                    unsigned char *dstbuf, size_t dlen)
 {
     int ret = 0;
     size_t i;
@@ -344,10 +327,10 @@
     mbedtls_sha1_context sha1;
     unsigned char padding[16];
     unsigned char sha1sum[20];
-    ((void)label);
+    ((void) label);
 
-    mbedtls_md5_init(  &md5  );
-    mbedtls_sha1_init( &sha1 );
+    mbedtls_md5_init(&md5);
+    mbedtls_sha1_init(&sha1);
 
     /*
      *  SSLv3:
@@ -357,48 +340,56 @@
      *      MD5( secret + SHA1( 'CCC'  + secret + random ) ) +
      *      ...
      */
-    for( i = 0; i < dlen / 16; i++ )
-    {
-        memset( padding, (unsigned char) ('A' + i), 1 + i );
+    for (i = 0; i < dlen / 16; i++) {
+        memset(padding, (unsigned char) ('A' + i), 1 + i);
 
-        if( ( ret = mbedtls_sha1_starts_ret( &sha1 ) ) != 0 )
+        if ((ret = mbedtls_sha1_starts_ret(&sha1)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, padding, 1 + i ) ) != 0 )
+        }
+        if ((ret = mbedtls_sha1_update_ret(&sha1, padding, 1 + i)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, secret, slen ) ) != 0 )
+        }
+        if ((ret = mbedtls_sha1_update_ret(&sha1, secret, slen)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_sha1_update_ret( &sha1, random, rlen ) ) != 0 )
+        }
+        if ((ret = mbedtls_sha1_update_ret(&sha1, random, rlen)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_sha1_finish_ret( &sha1, sha1sum ) ) != 0 )
+        }
+        if ((ret = mbedtls_sha1_finish_ret(&sha1, sha1sum)) != 0) {
             goto exit;
+        }
 
-        if( ( ret = mbedtls_md5_starts_ret( &md5 ) ) != 0 )
+        if ((ret = mbedtls_md5_starts_ret(&md5)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md5_update_ret( &md5, secret, slen ) ) != 0 )
+        }
+        if ((ret = mbedtls_md5_update_ret(&md5, secret, slen)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md5_update_ret( &md5, sha1sum, 20 ) ) != 0 )
+        }
+        if ((ret = mbedtls_md5_update_ret(&md5, sha1sum, 20)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md5_finish_ret( &md5, dstbuf + i * 16 ) ) != 0 )
+        }
+        if ((ret = mbedtls_md5_finish_ret(&md5, dstbuf + i * 16)) != 0) {
             goto exit;
+        }
     }
 
 exit:
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
+    mbedtls_md5_free(&md5);
+    mbedtls_sha1_free(&sha1);
 
-    mbedtls_platform_zeroize( padding, sizeof( padding ) );
-    mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
+    mbedtls_platform_zeroize(padding, sizeof(padding));
+    mbedtls_platform_zeroize(sha1sum, sizeof(sha1sum));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int tls1_prf( const unsigned char *secret, size_t slen,
-                     const char *label,
-                     const unsigned char *random, size_t rlen,
-                     unsigned char *dstbuf, size_t dlen )
+static int tls1_prf(const unsigned char *secret, size_t slen,
+                    const char *label,
+                    const unsigned char *random, size_t rlen,
+                    unsigned char *dstbuf, size_t dlen)
 {
     size_t nb, hs;
     size_t i, j, k;
@@ -410,204 +401,216 @@
     mbedtls_md_context_t md_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_md_init( &md_ctx );
+    mbedtls_md_init(&md_ctx);
 
-    tmp_len = 20 + strlen( label ) + rlen;
-    tmp = mbedtls_calloc( 1, tmp_len );
-    if( tmp == NULL )
-    {
+    tmp_len = 20 + strlen(label) + rlen;
+    tmp = mbedtls_calloc(1, tmp_len);
+    if (tmp == NULL) {
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto exit;
     }
 
-    hs = ( slen + 1 ) / 2;
+    hs = (slen + 1) / 2;
     S1 = secret;
     S2 = secret + slen - hs;
 
-    nb = strlen( label );
-    memcpy( tmp + 20, label, nb );
-    memcpy( tmp + 20 + nb, random, rlen );
+    nb = strlen(label);
+    memcpy(tmp + 20, label, nb);
+    memcpy(tmp + 20 + nb, random, rlen);
     nb += rlen;
 
     /*
      * First compute P_md5(secret,label+random)[0..dlen]
      */
-    if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL )
-    {
+    if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_MD5)) == NULL) {
         ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         goto exit;
     }
 
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
-    {
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) {
         goto exit;
     }
 
-    ret = mbedtls_md_hmac_starts( &md_ctx, S1, hs );
-    if( ret != 0 )
+    ret = mbedtls_md_hmac_starts(&md_ctx, S1, hs);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_update(&md_ctx, tmp + 20, nb);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_finish(&md_ctx, 4 + tmp);
+    if (ret != 0) {
         goto exit;
+    }
 
-    for( i = 0; i < dlen; i += 16 )
-    {
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+    for (i = 0; i < dlen; i += 16) {
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, 4 + tmp, 16 + nb);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, h_i );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, h_i);
+        if (ret != 0) {
             goto exit;
+        }
 
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, 4 + tmp, 16);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, 4 + tmp);
+        if (ret != 0) {
             goto exit;
+        }
 
-        k = ( i + 16 > dlen ) ? dlen % 16 : 16;
+        k = (i + 16 > dlen) ? dlen % 16 : 16;
 
-        for( j = 0; j < k; j++ )
+        for (j = 0; j < k; j++) {
             dstbuf[i + j]  = h_i[j];
+        }
     }
 
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
     /*
      * XOR out with P_sha1(secret,label+random)[0..dlen]
      */
-    if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL )
-    {
+    if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1)) == NULL) {
         ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         goto exit;
     }
 
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
-    {
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) {
         goto exit;
     }
 
-    ret = mbedtls_md_hmac_starts( &md_ctx, S2, hs );
-    if( ret != 0 )
+    ret = mbedtls_md_hmac_starts(&md_ctx, S2, hs);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_update(&md_ctx, tmp + 20, nb);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_finish( &md_ctx, tmp );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_finish(&md_ctx, tmp);
+    if (ret != 0) {
         goto exit;
+    }
 
-    for( i = 0; i < dlen; i += 20 )
-    {
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+    for (i = 0; i < dlen; i += 20) {
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, tmp, 20 + nb);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, h_i );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, h_i);
+        if (ret != 0) {
             goto exit;
+        }
 
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, tmp, 20 );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, tmp, 20);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, tmp );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, tmp);
+        if (ret != 0) {
             goto exit;
+        }
 
-        k = ( i + 20 > dlen ) ? dlen % 20 : 20;
+        k = (i + 20 > dlen) ? dlen % 20 : 20;
 
-        for( j = 0; j < k; j++ )
-            dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] );
+        for (j = 0; j < k; j++) {
+            dstbuf[i + j] = (unsigned char) (dstbuf[i + j] ^ h_i[j]);
+        }
     }
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    mbedtls_platform_zeroize( tmp, tmp_len );
-    mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
+    mbedtls_platform_zeroize(tmp, tmp_len);
+    mbedtls_platform_zeroize(h_i, sizeof(h_i));
 
-    mbedtls_free( tmp );
-    return( ret );
+    mbedtls_free(tmp);
+    return ret;
 }
 #endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 
-static psa_status_t setup_psa_key_derivation( psa_key_derivation_operation_t* derivation,
-                                              psa_key_id_t key,
-                                              psa_algorithm_t alg,
-                                              const unsigned char* seed, size_t seed_length,
-                                              const unsigned char* label, size_t label_length,
-                                              size_t capacity )
+static psa_status_t setup_psa_key_derivation(psa_key_derivation_operation_t *derivation,
+                                             psa_key_id_t key,
+                                             psa_algorithm_t alg,
+                                             const unsigned char *seed, size_t seed_length,
+                                             const unsigned char *label, size_t label_length,
+                                             size_t capacity)
 {
     psa_status_t status;
 
-    status = psa_key_derivation_setup( derivation, alg );
-    if( status != PSA_SUCCESS )
-        return( status );
+    status = psa_key_derivation_setup(derivation, alg);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
 
-    if( PSA_ALG_IS_TLS12_PRF( alg ) || PSA_ALG_IS_TLS12_PSK_TO_MS( alg ) )
-    {
-        status = psa_key_derivation_input_bytes( derivation,
-                                                 PSA_KEY_DERIVATION_INPUT_SEED,
-                                                 seed, seed_length );
-        if( status != PSA_SUCCESS )
-            return( status );
+    if (PSA_ALG_IS_TLS12_PRF(alg) || PSA_ALG_IS_TLS12_PSK_TO_MS(alg)) {
+        status = psa_key_derivation_input_bytes(derivation,
+                                                PSA_KEY_DERIVATION_INPUT_SEED,
+                                                seed, seed_length);
+        if (status != PSA_SUCCESS) {
+            return status;
+        }
 
-        if( mbedtls_svc_key_id_is_null( key ) )
-        {
+        if (mbedtls_svc_key_id_is_null(key)) {
             status = psa_key_derivation_input_bytes(
                 derivation, PSA_KEY_DERIVATION_INPUT_SECRET,
-                NULL, 0 );
-        }
-        else
-        {
+                NULL, 0);
+        } else {
             status = psa_key_derivation_input_key(
-                derivation, PSA_KEY_DERIVATION_INPUT_SECRET, key );
+                derivation, PSA_KEY_DERIVATION_INPUT_SECRET, key);
         }
-        if( status != PSA_SUCCESS )
-            return( status );
+        if (status != PSA_SUCCESS) {
+            return status;
+        }
 
-        status = psa_key_derivation_input_bytes( derivation,
-                                                 PSA_KEY_DERIVATION_INPUT_LABEL,
-                                                 label, label_length );
-        if( status != PSA_SUCCESS )
-            return( status );
-    }
-    else
-    {
-        return( PSA_ERROR_NOT_SUPPORTED );
+        status = psa_key_derivation_input_bytes(derivation,
+                                                PSA_KEY_DERIVATION_INPUT_LABEL,
+                                                label, label_length);
+        if (status != PSA_SUCCESS) {
+            return status;
+        }
+    } else {
+        return PSA_ERROR_NOT_SUPPORTED;
     }
 
-    status = psa_key_derivation_set_capacity( derivation, capacity );
-    if( status != PSA_SUCCESS )
-        return( status );
+    status = psa_key_derivation_set_capacity(derivation, capacity);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
 
-    return( PSA_SUCCESS );
+    return PSA_SUCCESS;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int tls_prf_generic( mbedtls_md_type_t md_type,
-                            const unsigned char *secret, size_t slen,
-                            const char *label,
-                            const unsigned char *random, size_t rlen,
-                            unsigned char *dstbuf, size_t dlen )
+static int tls_prf_generic(mbedtls_md_type_t md_type,
+                           const unsigned char *secret, size_t slen,
+                           const char *label,
+                           const unsigned char *random, size_t rlen,
+                           unsigned char *dstbuf, size_t dlen)
 {
     psa_status_t status;
     psa_algorithm_t alg;
@@ -615,10 +618,11 @@
     psa_key_derivation_operation_t derivation =
         PSA_KEY_DERIVATION_OPERATION_INIT;
 
-    if( md_type == MBEDTLS_MD_SHA384 )
+    if (md_type == MBEDTLS_MD_SHA384) {
         alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_384);
-    else
+    } else {
         alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256);
+    }
 
     /* Normally a "secret" should be long enough to be impossible to
      * find by brute force, and in particular should not be empty. But
@@ -627,62 +631,61 @@
      * Since the key API doesn't allow importing a key of length 0,
      * keep master_key=0, which setup_psa_key_derivation() understands
      * to mean a 0-length "secret" input. */
-    if( slen != 0 )
-    {
+    if (slen != 0) {
         psa_key_attributes_t key_attributes = psa_key_attributes_init();
-        psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
-        psa_set_key_algorithm( &key_attributes, alg );
-        psa_set_key_type( &key_attributes, PSA_KEY_TYPE_DERIVE );
+        psa_set_key_usage_flags(&key_attributes, PSA_KEY_USAGE_DERIVE);
+        psa_set_key_algorithm(&key_attributes, alg);
+        psa_set_key_type(&key_attributes, PSA_KEY_TYPE_DERIVE);
 
-        status = psa_import_key( &key_attributes, secret, slen, &master_key );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+        status = psa_import_key(&key_attributes, secret, slen, &master_key);
+        if (status != PSA_SUCCESS) {
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        }
     }
 
-    status = setup_psa_key_derivation( &derivation,
-                                       master_key, alg,
-                                       random, rlen,
-                                       (unsigned char const *) label,
-                                       (size_t) strlen( label ),
-                                       dlen );
-    if( status != PSA_SUCCESS )
-    {
-        psa_key_derivation_abort( &derivation );
-        psa_destroy_key( master_key );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    status = setup_psa_key_derivation(&derivation,
+                                      master_key, alg,
+                                      random, rlen,
+                                      (unsigned char const *) label,
+                                      (size_t) strlen(label),
+                                      dlen);
+    if (status != PSA_SUCCESS) {
+        psa_key_derivation_abort(&derivation);
+        psa_destroy_key(master_key);
+        return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
     }
 
-    status = psa_key_derivation_output_bytes( &derivation, dstbuf, dlen );
-    if( status != PSA_SUCCESS )
-    {
-        psa_key_derivation_abort( &derivation );
-        psa_destroy_key( master_key );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    status = psa_key_derivation_output_bytes(&derivation, dstbuf, dlen);
+    if (status != PSA_SUCCESS) {
+        psa_key_derivation_abort(&derivation);
+        psa_destroy_key(master_key);
+        return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
     }
 
-    status = psa_key_derivation_abort( &derivation );
-    if( status != PSA_SUCCESS )
-    {
-        psa_destroy_key( master_key );
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    status = psa_key_derivation_abort(&derivation);
+    if (status != PSA_SUCCESS) {
+        psa_destroy_key(master_key);
+        return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
     }
 
-    if( ! mbedtls_svc_key_id_is_null( master_key ) )
-        status = psa_destroy_key( master_key );
-    if( status != PSA_SUCCESS )
-        return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    if (!mbedtls_svc_key_id_is_null(master_key)) {
+        status = psa_destroy_key(master_key);
+    }
+    if (status != PSA_SUCCESS) {
+        return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 #else /* MBEDTLS_USE_PSA_CRYPTO */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int tls_prf_generic( mbedtls_md_type_t md_type,
-                            const unsigned char *secret, size_t slen,
-                            const char *label,
-                            const unsigned char *random, size_t rlen,
-                            unsigned char *dstbuf, size_t dlen )
+static int tls_prf_generic(mbedtls_md_type_t md_type,
+                           const unsigned char *secret, size_t slen,
+                           const char *label,
+                           const unsigned char *random, size_t rlen,
+                           unsigned char *dstbuf, size_t dlen)
 {
     size_t nb;
     size_t i, j, k, md_len;
@@ -693,237 +696,240 @@
     mbedtls_md_context_t md_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_md_init( &md_ctx );
+    mbedtls_md_init(&md_ctx);
 
-    if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if ((md_info = mbedtls_md_info_from_type(md_type)) == NULL) {
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
+    }
 
-    md_len = mbedtls_md_get_size( md_info );
+    md_len = mbedtls_md_get_size(md_info);
 
-    tmp_len = md_len + strlen( label ) + rlen;
-    tmp = mbedtls_calloc( 1, tmp_len );
-    if( tmp == NULL )
-    {
+    tmp_len = md_len + strlen(label) + rlen;
+    tmp = mbedtls_calloc(1, tmp_len);
+    if (tmp == NULL) {
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto exit;
     }
 
-    nb = strlen( label );
-    memcpy( tmp + md_len, label, nb );
-    memcpy( tmp + md_len + nb, random, rlen );
+    nb = strlen(label);
+    memcpy(tmp + md_len, label, nb);
+    memcpy(tmp + md_len + nb, random, rlen);
     nb += rlen;
 
     /*
      * Compute P_<hash>(secret, label + random)[0..dlen]
      */
-    if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) {
         goto exit;
+    }
 
-    ret = mbedtls_md_hmac_starts( &md_ctx, secret, slen );
-    if( ret != 0 )
+    ret = mbedtls_md_hmac_starts(&md_ctx, secret, slen);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_update(&md_ctx, tmp + md_len, nb);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_hmac_finish( &md_ctx, tmp );
-    if( ret != 0 )
+    }
+    ret = mbedtls_md_hmac_finish(&md_ctx, tmp);
+    if (ret != 0) {
         goto exit;
+    }
 
-    for( i = 0; i < dlen; i += md_len )
-    {
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+    for (i = 0; i < dlen; i += md_len) {
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, tmp, md_len + nb);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, h_i );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, h_i);
+        if (ret != 0) {
             goto exit;
+        }
 
-        ret = mbedtls_md_hmac_reset ( &md_ctx );
-        if( ret != 0 )
+        ret = mbedtls_md_hmac_reset(&md_ctx);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_update( &md_ctx, tmp, md_len );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&md_ctx, tmp, md_len);
+        if (ret != 0) {
             goto exit;
-        ret = mbedtls_md_hmac_finish( &md_ctx, tmp );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&md_ctx, tmp);
+        if (ret != 0) {
             goto exit;
+        }
 
-        k = ( i + md_len > dlen ) ? dlen % md_len : md_len;
+        k = (i + md_len > dlen) ? dlen % md_len : md_len;
 
-        for( j = 0; j < k; j++ )
+        for (j = 0; j < k; j++) {
             dstbuf[i + j]  = h_i[j];
+        }
     }
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    if ( tmp != NULL )
-        mbedtls_platform_zeroize( tmp, tmp_len );
+    if (tmp != NULL) {
+        mbedtls_platform_zeroize(tmp, tmp_len);
+    }
 
-    mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
+    mbedtls_platform_zeroize(h_i, sizeof(h_i));
 
-    mbedtls_free( tmp );
+    mbedtls_free(tmp);
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 #if defined(MBEDTLS_SHA256_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int tls_prf_sha256( const unsigned char *secret, size_t slen,
-                           const char *label,
-                           const unsigned char *random, size_t rlen,
-                           unsigned char *dstbuf, size_t dlen )
+static int tls_prf_sha256(const unsigned char *secret, size_t slen,
+                          const char *label,
+                          const unsigned char *random, size_t rlen,
+                          unsigned char *dstbuf, size_t dlen)
 {
-    return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen,
-                             label, random, rlen, dstbuf, dlen ) );
+    return tls_prf_generic(MBEDTLS_MD_SHA256, secret, slen,
+                           label, random, rlen, dstbuf, dlen);
 }
 #endif /* MBEDTLS_SHA256_C */
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int tls_prf_sha384( const unsigned char *secret, size_t slen,
-                           const char *label,
-                           const unsigned char *random, size_t rlen,
-                           unsigned char *dstbuf, size_t dlen )
+static int tls_prf_sha384(const unsigned char *secret, size_t slen,
+                          const char *label,
+                          const unsigned char *random, size_t rlen,
+                          unsigned char *dstbuf, size_t dlen)
 {
-    return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen,
-                             label, random, rlen, dstbuf, dlen ) );
+    return tls_prf_generic(MBEDTLS_MD_SHA384, secret, slen,
+                           label, random, rlen, dstbuf, dlen);
 }
 #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t );
+static void ssl_update_checksum_start(mbedtls_ssl_context *, const unsigned char *, size_t);
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t );
+static void ssl_update_checksum_md5sha1(mbedtls_ssl_context *, const unsigned char *, size_t);
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-static void ssl_calc_verify_ssl( const mbedtls_ssl_context *, unsigned char *, size_t * );
-static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int );
+static void ssl_calc_verify_ssl(const mbedtls_ssl_context *, unsigned char *, size_t *);
+static void ssl_calc_finished_ssl(mbedtls_ssl_context *, unsigned char *, int);
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_calc_verify_tls( const mbedtls_ssl_context *, unsigned char*, size_t * );
-static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int );
+static void ssl_calc_verify_tls(const mbedtls_ssl_context *, unsigned char *, size_t *);
+static void ssl_calc_finished_tls(mbedtls_ssl_context *, unsigned char *, int);
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
-static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t );
-static void ssl_calc_verify_tls_sha256( const mbedtls_ssl_context *,unsigned char*, size_t * );
-static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int );
+static void ssl_update_checksum_sha256(mbedtls_ssl_context *, const unsigned char *, size_t);
+static void ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *, unsigned char *, size_t *);
+static void ssl_calc_finished_tls_sha256(mbedtls_ssl_context *, unsigned char *, int);
 #endif
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t );
-static void ssl_calc_verify_tls_sha384( const mbedtls_ssl_context *, unsigned char*, size_t * );
-static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int );
+static void ssl_update_checksum_sha384(mbedtls_ssl_context *, const unsigned char *, size_t);
+static void ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *, unsigned char *, size_t *);
+static void ssl_calc_finished_tls_sha384(mbedtls_ssl_context *, unsigned char *, int);
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) && \
     defined(MBEDTLS_USE_PSA_CRYPTO)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
+static int ssl_use_opaque_psk(mbedtls_ssl_context const *ssl)
 {
-    if( ssl->conf->f_psk != NULL )
-    {
+    if (ssl->conf->f_psk != NULL) {
         /* If we've used a callback to select the PSK,
          * the static configuration is irrelevant. */
-        if( ! mbedtls_svc_key_id_is_null( ssl->handshake->psk_opaque ) )
-            return( 1 );
+        if (!mbedtls_svc_key_id_is_null(ssl->handshake->psk_opaque)) {
+            return 1;
+        }
 
-        return( 0 );
+        return 0;
     }
 
-    if( ! mbedtls_svc_key_id_is_null( ssl->conf->psk_opaque ) )
-        return( 1 );
+    if (!mbedtls_svc_key_id_is_null(ssl->conf->psk_opaque)) {
+        return 1;
+    }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO &&
           MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
 
 #if defined(MBEDTLS_SSL_EXPORT_KEYS)
-static mbedtls_tls_prf_types tls_prf_get_type( mbedtls_ssl_tls_prf_cb *tls_prf )
+static mbedtls_tls_prf_types tls_prf_get_type(mbedtls_ssl_tls_prf_cb *tls_prf)
 {
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( tls_prf == ssl3_prf )
-    {
-        return( MBEDTLS_SSL_TLS_PRF_SSL3 );
-    }
-    else
+    if (tls_prf == ssl3_prf) {
+        return MBEDTLS_SSL_TLS_PRF_SSL3;
+    } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( tls_prf == tls1_prf )
-    {
-        return( MBEDTLS_SSL_TLS_PRF_TLS1 );
-    }
-    else
+    if (tls_prf == tls1_prf) {
+        return MBEDTLS_SSL_TLS_PRF_TLS1;
+    } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-    if( tls_prf == tls_prf_sha384 )
-    {
-        return( MBEDTLS_SSL_TLS_PRF_SHA384 );
-    }
-    else
+    if (tls_prf == tls_prf_sha384) {
+        return MBEDTLS_SSL_TLS_PRF_SHA384;
+    } else
 #endif
 #if defined(MBEDTLS_SHA256_C)
-    if( tls_prf == tls_prf_sha256 )
-    {
-        return( MBEDTLS_SSL_TLS_PRF_SHA256 );
-    }
-    else
+    if (tls_prf == tls_prf_sha256) {
+        return MBEDTLS_SSL_TLS_PRF_SHA256;
+    } else
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    return( MBEDTLS_SSL_TLS_PRF_NONE );
+    return MBEDTLS_SSL_TLS_PRF_NONE;
 }
 #endif /* MBEDTLS_SSL_EXPORT_KEYS */
 
-int  mbedtls_ssl_tls_prf( const mbedtls_tls_prf_types prf,
-                          const unsigned char *secret, size_t slen,
-                          const char *label,
-                          const unsigned char *random, size_t rlen,
-                          unsigned char *dstbuf, size_t dlen )
+int  mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf,
+                         const unsigned char *secret, size_t slen,
+                         const char *label,
+                         const unsigned char *random, size_t rlen,
+                         unsigned char *dstbuf, size_t dlen)
 {
     mbedtls_ssl_tls_prf_cb *tls_prf = NULL;
 
-    switch( prf )
-    {
+    switch (prf) {
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
         case MBEDTLS_SSL_TLS_PRF_SSL3:
             tls_prf = ssl3_prf;
-        break;
+            break;
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
         case MBEDTLS_SSL_TLS_PRF_TLS1:
             tls_prf = tls1_prf;
-        break;
+            break;
 #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
         case MBEDTLS_SSL_TLS_PRF_SHA384:
             tls_prf = tls_prf_sha384;
-        break;
+            break;
 #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */
 #if defined(MBEDTLS_SHA256_C)
         case MBEDTLS_SSL_TLS_PRF_SHA256:
             tls_prf = tls_prf_sha256;
-        break;
+            break;
 #endif /* MBEDTLS_SHA256_C */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    default:
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+        default:
+            return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     }
 
-    return( tls_prf( secret, slen, label, random, rlen, dstbuf, dlen ) );
+    return tls_prf(secret, slen, label, random, rlen, dstbuf, dlen);
 }
 
 /* Type for the TLS PRF */
@@ -954,28 +960,28 @@
  *        - MBEDTLS_DEBUG_C: ssl->conf->{f,p}_dbg
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_populate_transform( mbedtls_ssl_transform *transform,
-                                   int ciphersuite,
-                                   const unsigned char master[48],
+static int ssl_populate_transform(mbedtls_ssl_transform *transform,
+                                  int ciphersuite,
+                                  const unsigned char master[48],
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-                                   int encrypt_then_mac,
+                                  int encrypt_then_mac,
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-                                   int trunc_hmac,
+                                  int trunc_hmac,
 #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
 #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-                                   int compression,
+                                  int compression,
 #endif
-                                   ssl_tls_prf_t tls_prf,
-                                   const unsigned char randbytes[64],
-                                   int minor_ver,
-                                   unsigned endpoint,
+                                  ssl_tls_prf_t tls_prf,
+                                  const unsigned char randbytes[64],
+                                  int minor_ver,
+                                  unsigned endpoint,
 #if !defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-                                   const
+                                  const
 #endif
-                                   mbedtls_ssl_context *ssl )
+                                  mbedtls_ssl_context *ssl)
 {
     int ret = 0;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -1012,71 +1018,66 @@
     transform->minor_ver = minor_ver;
 
 #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION)
-    memcpy( transform->randbytes, randbytes, sizeof( transform->randbytes ) );
+    memcpy(transform->randbytes, randbytes, sizeof(transform->randbytes));
 #endif
 
     /*
      * Get various info structures
      */
-    ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuite );
-    if( ciphersuite_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %d not found",
-                                    ciphersuite ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    ciphersuite_info = mbedtls_ssl_ciphersuite_from_id(ciphersuite);
+    if (ciphersuite_info == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("ciphersuite info for %d not found",
+                                  ciphersuite));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    cipher_info = mbedtls_cipher_info_from_type( ciphersuite_info->cipher );
-    if( cipher_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %u not found",
-                                    ciphersuite_info->cipher ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    cipher_info = mbedtls_cipher_info_from_type(ciphersuite_info->cipher);
+    if (cipher_info == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("cipher info for %u not found",
+                                  ciphersuite_info->cipher));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    md_info = mbedtls_md_info_from_type( ciphersuite_info->mac );
-    if( md_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %u not found",
-                            (unsigned) ciphersuite_info->mac ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    md_info = mbedtls_md_info_from_type(ciphersuite_info->mac);
+    if (md_info == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("mbedtls_md info for %u not found",
+                                  (unsigned) ciphersuite_info->mac));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     /* Copy own and peer's CID if the use of the CID
      * extension has been negotiated. */
-    if( ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_ENABLED )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Copy CIDs into SSL transform" ) );
+    if (ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_ENABLED) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Copy CIDs into SSL transform"));
 
         transform->in_cid_len = ssl->own_cid_len;
-        memcpy( transform->in_cid, ssl->own_cid, ssl->own_cid_len );
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Incoming CID", transform->in_cid,
-                               transform->in_cid_len );
+        memcpy(transform->in_cid, ssl->own_cid, ssl->own_cid_len);
+        MBEDTLS_SSL_DEBUG_BUF(3, "Incoming CID", transform->in_cid,
+                              transform->in_cid_len);
 
         transform->out_cid_len = ssl->handshake->peer_cid_len;
-        memcpy( transform->out_cid, ssl->handshake->peer_cid,
-                ssl->handshake->peer_cid_len );
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Outgoing CID", transform->out_cid,
-                               transform->out_cid_len );
+        memcpy(transform->out_cid, ssl->handshake->peer_cid,
+               ssl->handshake->peer_cid_len);
+        MBEDTLS_SSL_DEBUG_BUF(3, "Outgoing CID", transform->out_cid,
+                              transform->out_cid_len);
     }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
     /*
      * Compute key block using the PRF
      */
-    ret = tls_prf( master, 48, "key expansion", randbytes, 64, keyblk, 256 );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
-        return( ret );
+    ret = tls_prf(master, 48, "key expansion", randbytes, 64, keyblk, 256);
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "prf", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s",
-                           mbedtls_ssl_get_ciphersuite_name( ciphersuite ) ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", master, 48 );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", randbytes, 64 );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite = %s",
+                              mbedtls_ssl_get_ciphersuite_name(ciphersuite)));
+    MBEDTLS_SSL_DEBUG_BUF(3, "master secret", master, 48);
+    MBEDTLS_SSL_DEBUG_BUF(4, "random bytes", randbytes, 64);
+    MBEDTLS_SSL_DEBUG_BUF(4, "key block", keyblk, 256);
 
     /*
      * Determine the appropriate key, IV and MAC length.
@@ -1087,10 +1088,9 @@
 #if defined(MBEDTLS_GCM_C) ||                           \
     defined(MBEDTLS_CCM_C) ||                           \
     defined(MBEDTLS_CHACHAPOLY_C)
-    if( cipher_info->mode == MBEDTLS_MODE_GCM ||
+    if (cipher_info->mode == MBEDTLS_MODE_GCM ||
         cipher_info->mode == MBEDTLS_MODE_CCM ||
-        cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
-    {
+        cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY) {
         size_t explicit_ivlen;
 
         transform->maclen = 0;
@@ -1108,39 +1108,35 @@
          */
         transform->ivlen = 12;
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
-        if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_4 )
-        {
+        if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_4) {
             transform->fixed_ivlen = 12;
-        }
-        else
+        } else
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
         {
-            if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
+            if (cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY) {
                 transform->fixed_ivlen = 12;
-            else
+            } else {
                 transform->fixed_ivlen = 4;
+            }
         }
 
         /* Minimum length of encrypted record */
         explicit_ivlen = transform->ivlen - transform->fixed_ivlen;
         transform->minlen = explicit_ivlen + transform->taglen;
-    }
-    else
+    } else
 #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
-    if( cipher_info->mode == MBEDTLS_MODE_STREAM ||
-        cipher_info->mode == MBEDTLS_MODE_CBC )
-    {
+    if (cipher_info->mode == MBEDTLS_MODE_STREAM ||
+        cipher_info->mode == MBEDTLS_MODE_CBC) {
         /* Initialize HMAC contexts */
-        if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 ||
-            ( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
+        if ((ret = mbedtls_md_setup(&transform->md_ctx_enc, md_info, 1)) != 0 ||
+            (ret = mbedtls_md_setup(&transform->md_ctx_dec, md_info, 1)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_setup", ret);
             goto end;
         }
 
         /* Get MAC length */
-        mac_key_len = mbedtls_md_get_size( md_info );
+        mac_key_len = mbedtls_md_get_size(md_info);
         transform->maclen = mac_key_len;
 
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
@@ -1149,8 +1145,7 @@
          * (rfc 6066 page 13 or rfc 2104 section 4),
          * so we only need to adjust the length here.
          */
-        if( trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED )
-        {
+        if (trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED) {
             transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN;
 
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
@@ -1166,10 +1161,9 @@
         transform->ivlen = cipher_info->iv_size;
 
         /* Minimum length */
-        if( cipher_info->mode == MBEDTLS_MODE_STREAM )
+        if (cipher_info->mode == MBEDTLS_MODE_STREAM) {
             transform->minlen = transform->maclen;
-        else
-        {
+        } else {
             /*
              * GenericBlockCipher:
              * 1. if EtM is in use: one block plus MAC
@@ -1177,59 +1171,53 @@
              * 2. IV except for SSL3 and TLS 1.0
              */
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-            if( encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
-            {
+            if (encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED) {
                 transform->minlen = transform->maclen
-                                  + cipher_info->block_size;
-            }
-            else
+                                    + cipher_info->block_size;
+            } else
 #endif
             {
                 transform->minlen = transform->maclen
-                                  + cipher_info->block_size
-                                  - transform->maclen % cipher_info->block_size;
+                                    + cipher_info->block_size
+                                    - transform->maclen % cipher_info->block_size;
             }
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
-            if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
-                minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 )
+            if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
+                minor_ver == MBEDTLS_SSL_MINOR_VERSION_1) {
                 ; /* No need to adjust minlen */
-            else
+            } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
-            if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 ||
-                minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-            {
+            if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 ||
+                minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) {
                 transform->minlen += transform->ivlen;
-            }
-            else
+            } else
 #endif
             {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+                MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
                 ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
                 goto end;
             }
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %u, minlen: %u, ivlen: %u, maclen: %u",
-                                (unsigned) keylen,
-                                (unsigned) transform->minlen,
-                                (unsigned) transform->ivlen,
-                                (unsigned) transform->maclen ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("keylen: %u, minlen: %u, ivlen: %u, maclen: %u",
+                              (unsigned) keylen,
+                              (unsigned) transform->minlen,
+                              (unsigned) transform->ivlen,
+                              (unsigned) transform->maclen));
 
     /*
      * Finally setup the cipher contexts, IVs and MAC secrets.
      */
 #if defined(MBEDTLS_SSL_CLI_C)
-    if( endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
+    if (endpoint == MBEDTLS_SSL_IS_CLIENT) {
         key1 = keyblk + mac_key_len * 2;
         key2 = keyblk + mac_key_len * 2 + keylen;
 
@@ -1239,17 +1227,15 @@
         /*
          * This is not used in TLS v1.1.
          */
-        iv_copy_len = ( transform->fixed_ivlen ) ?
-                            transform->fixed_ivlen : transform->ivlen;
-        memcpy( transform->iv_enc, key2 + keylen,  iv_copy_len );
-        memcpy( transform->iv_dec, key2 + keylen + iv_copy_len,
-                iv_copy_len );
-    }
-    else
+        iv_copy_len = (transform->fixed_ivlen) ?
+                      transform->fixed_ivlen : transform->ivlen;
+        memcpy(transform->iv_enc, key2 + keylen,  iv_copy_len);
+        memcpy(transform->iv_dec, key2 + keylen + iv_copy_len,
+               iv_copy_len);
+    } else
 #endif /* MBEDTLS_SSL_CLI_C */
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
+    if (endpoint == MBEDTLS_SSL_IS_SERVER) {
         key1 = keyblk + mac_key_len * 2 + keylen;
         key2 = keyblk + mac_key_len * 2;
 
@@ -1259,77 +1245,70 @@
         /*
          * This is not used in TLS v1.1.
          */
-        iv_copy_len = ( transform->fixed_ivlen ) ?
-                            transform->fixed_ivlen : transform->ivlen;
-        memcpy( transform->iv_dec, key1 + keylen,  iv_copy_len );
-        memcpy( transform->iv_enc, key1 + keylen + iv_copy_len,
-                iv_copy_len );
-    }
-    else
+        iv_copy_len = (transform->fixed_ivlen) ?
+                      transform->fixed_ivlen : transform->ivlen;
+        memcpy(transform->iv_dec, key1 + keylen,  iv_copy_len);
+        memcpy(transform->iv_enc, key1 + keylen + iv_copy_len,
+               iv_copy_len);
+    } else
 #endif /* MBEDTLS_SSL_SRV_C */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
         ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         goto end;
     }
 
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        if( mac_key_len > sizeof( transform->mac_enc ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) {
+        if (mac_key_len > sizeof(transform->mac_enc)) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
             ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             goto end;
         }
 
-        memcpy( transform->mac_enc, mac_enc, mac_key_len );
-        memcpy( transform->mac_dec, mac_dec, mac_key_len );
-    }
-    else
+        memcpy(transform->mac_enc, mac_enc, mac_key_len);
+        memcpy(transform->mac_dec, mac_dec, mac_key_len);
+    } else
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
-    {
+    if (minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1) {
         /* For HMAC-based ciphersuites, initialize the HMAC transforms.
            For AEAD-based ciphersuites, there is nothing to do here. */
-        if( mac_key_len != 0 )
-        {
-            ret = mbedtls_md_hmac_starts( &transform->md_ctx_enc,
-                                          mac_enc, mac_key_len );
-            if( ret != 0 )
+        if (mac_key_len != 0) {
+            ret = mbedtls_md_hmac_starts(&transform->md_ctx_enc,
+                                         mac_enc, mac_key_len);
+            if (ret != 0) {
                 goto end;
-            ret = mbedtls_md_hmac_starts( &transform->md_ctx_dec,
-                                          mac_dec, mac_key_len );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_starts(&transform->md_ctx_dec,
+                                         mac_dec, mac_key_len);
+            if (ret != 0) {
                 goto end;
+            }
         }
-    }
-    else
+    } else
 #endif
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
         ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         goto end;
     }
 #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 
 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_init != NULL )
-    {
+    if (mbedtls_ssl_hw_record_init != NULL) {
         ret = 0;
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_init()"));
 
-        if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, keylen,
-                                        transform->iv_enc, transform->iv_dec,
-                                        iv_copy_len,
-                                        mac_enc, mac_dec,
-                                        mac_key_len ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret );
+        if ((ret = mbedtls_ssl_hw_record_init(ssl, key1, key2, keylen,
+                                              transform->iv_enc, transform->iv_dec,
+                                              iv_copy_len,
+                                              mac_enc, mac_dec,
+                                              mac_key_len)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_init", ret);
             ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
             goto end;
         }
@@ -1340,23 +1319,21 @@
 #endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
 
 #if defined(MBEDTLS_SSL_EXPORT_KEYS)
-    if( ssl->conf->f_export_keys != NULL )
-    {
-        ssl->conf->f_export_keys( ssl->conf->p_export_keys,
-                                  master, keyblk,
-                                  mac_key_len, keylen,
-                                  iv_copy_len );
+    if (ssl->conf->f_export_keys != NULL) {
+        ssl->conf->f_export_keys(ssl->conf->p_export_keys,
+                                 master, keyblk,
+                                 mac_key_len, keylen,
+                                 iv_copy_len);
     }
 
-    if( ssl->conf->f_export_keys_ext != NULL )
-    {
-        ssl->conf->f_export_keys_ext( ssl->conf->p_export_keys,
-                                      master, keyblk,
-                                      mac_key_len, keylen,
-                                      iv_copy_len,
-                                      randbytes + 32,
-                                      randbytes,
-                                      tls_prf_get_type( tls_prf ) );
+    if (ssl->conf->f_export_keys_ext != NULL) {
+        ssl->conf->f_export_keys_ext(ssl->conf->p_export_keys,
+                                     master, keyblk,
+                                     mac_key_len, keylen,
+                                     iv_copy_len,
+                                     randbytes + 32,
+                                     randbytes,
+                                     tls_prf_get_type(tls_prf));
     }
 #endif
 
@@ -1369,41 +1346,38 @@
      * the structure field for the IV, which the PSA-based
      * implementation currently doesn't. */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc,
-                                        cipher_info, transform->taglen );
-        if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret );
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) {
+        ret = mbedtls_cipher_setup_psa(&transform->cipher_ctx_enc,
+                                       cipher_info, transform->taglen);
+        if (ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup_psa", ret);
             goto end;
         }
 
-        if( ret == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based encryption cipher context" ) );
+        if (ret == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("Successfully setup PSA-based encryption cipher context"));
             psa_fallthrough = 0;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record encryption - fall through to default setup." ) );
+        } else {
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  (
+                                      "Failed to setup PSA-based cipher context for record encryption - fall through to default setup."));
             psa_fallthrough = 1;
         }
-    }
-    else
+    } else {
         psa_fallthrough = 1;
+    }
 #else
     psa_fallthrough = 1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-    if( psa_fallthrough == 0 )
+    if (psa_fallthrough == 0) {
         do_mbedtls_cipher_setup = 0;
+    }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( do_mbedtls_cipher_setup &&
-            ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
-                                          cipher_info ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
+    if (do_mbedtls_cipher_setup &&
+        (ret = mbedtls_cipher_setup(&transform->cipher_ctx_enc,
+                                    cipher_info)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup", ret);
         goto end;
     }
 
@@ -1415,74 +1389,66 @@
      * the structure field for the IV, which the PSA-based
      * implementation currently doesn't. */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec,
-                                        cipher_info, transform->taglen );
-        if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret );
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) {
+        ret = mbedtls_cipher_setup_psa(&transform->cipher_ctx_dec,
+                                       cipher_info, transform->taglen);
+        if (ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup_psa", ret);
             goto end;
         }
 
-        if( ret == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based decryption cipher context" ) );
+        if (ret == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("Successfully setup PSA-based decryption cipher context"));
             psa_fallthrough = 0;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record decryption - fall through to default setup." ) );
+        } else {
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  (
+                                      "Failed to setup PSA-based cipher context for record decryption - fall through to default setup."));
             psa_fallthrough = 1;
         }
-    }
-    else
+    } else {
         psa_fallthrough = 1;
+    }
 #else
     psa_fallthrough = 1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-    if( psa_fallthrough == 0 )
+    if (psa_fallthrough == 0) {
         do_mbedtls_cipher_setup = 0;
+    }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( do_mbedtls_cipher_setup &&
-            ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
-                                          cipher_info ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
+    if (do_mbedtls_cipher_setup &&
+        (ret = mbedtls_cipher_setup(&transform->cipher_ctx_dec,
+                                    cipher_info)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup", ret);
         goto end;
     }
 
-    if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1,
-                               cipher_info->key_bitlen,
-                               MBEDTLS_ENCRYPT ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
+    if ((ret = mbedtls_cipher_setkey(&transform->cipher_ctx_enc, key1,
+                                     cipher_info->key_bitlen,
+                                     MBEDTLS_ENCRYPT)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setkey", ret);
         goto end;
     }
 
-    if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2,
-                               cipher_info->key_bitlen,
-                               MBEDTLS_DECRYPT ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
+    if ((ret = mbedtls_cipher_setkey(&transform->cipher_ctx_dec, key2,
+                                     cipher_info->key_bitlen,
+                                     MBEDTLS_DECRYPT)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setkey", ret);
         goto end;
     }
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-    if( cipher_info->mode == MBEDTLS_MODE_CBC )
-    {
-        if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc,
-                                             MBEDTLS_PADDING_NONE ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
+    if (cipher_info->mode == MBEDTLS_MODE_CBC) {
+        if ((ret = mbedtls_cipher_set_padding_mode(&transform->cipher_ctx_enc,
+                                                   MBEDTLS_PADDING_NONE)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_set_padding_mode", ret);
             goto end;
         }
 
-        if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec,
-                                             MBEDTLS_PADDING_NONE ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
+        if ((ret = mbedtls_cipher_set_padding_mode(&transform->cipher_ctx_dec,
+                                                   MBEDTLS_PADDING_NONE)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_set_padding_mode", ret);
             goto end;
         }
     }
@@ -1491,18 +1457,16 @@
 
     /* Initialize Zlib contexts */
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) );
+    if (compression == MBEDTLS_SSL_COMPRESS_DEFLATE) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Initializing zlib states"));
 
-        memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) );
-        memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) );
+        memset(&transform->ctx_deflate, 0, sizeof(transform->ctx_deflate));
+        memset(&transform->ctx_inflate, 0, sizeof(transform->ctx_inflate));
 
-        if( deflateInit( &transform->ctx_deflate,
-                         Z_DEFAULT_COMPRESSION )   != Z_OK ||
-            inflateInit( &transform->ctx_inflate ) != Z_OK )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) );
+        if (deflateInit(&transform->ctx_deflate,
+                        Z_DEFAULT_COMPRESSION)   != Z_OK ||
+            inflateInit(&transform->ctx_inflate) != Z_OK) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Failed to initialize compression"));
             ret = MBEDTLS_ERR_SSL_COMPRESSION_FAILED;
             goto end;
         }
@@ -1510,8 +1474,8 @@
 #endif /* MBEDTLS_ZLIB_SUPPORT */
 
 end:
-    mbedtls_platform_zeroize( keyblk, sizeof( keyblk ) );
-    return( ret );
+    mbedtls_platform_zeroize(keyblk, sizeof(keyblk));
+    return ret;
 }
 
 /*
@@ -1525,59 +1489,51 @@
  * - the tls_prf, calc_verify and calc_finished members of handshake structure
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake,
-                                   int minor_ver,
-                                   mbedtls_md_type_t hash )
+static int ssl_set_handshake_prfs(mbedtls_ssl_handshake_params *handshake,
+                                  int minor_ver,
+                                  mbedtls_md_type_t hash)
 {
 #if !defined(MBEDTLS_SSL_PROTO_TLS1_2) ||       \
-    !( defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) )
+    !(defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384))
     (void) hash;
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) {
         handshake->tls_prf = ssl3_prf;
         handshake->calc_verify = ssl_calc_verify_ssl;
         handshake->calc_finished = ssl_calc_finished_ssl;
-    }
-    else
+    } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
+    if (minor_ver < MBEDTLS_SSL_MINOR_VERSION_3) {
         handshake->tls_prf = tls1_prf;
         handshake->calc_verify = ssl_calc_verify_tls;
         handshake->calc_finished = ssl_calc_finished_tls;
-    }
-    else
+    } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
-        hash == MBEDTLS_MD_SHA384 )
-    {
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
+        hash == MBEDTLS_MD_SHA384) {
         handshake->tls_prf = tls_prf_sha384;
         handshake->calc_verify = ssl_calc_verify_tls_sha384;
         handshake->calc_finished = ssl_calc_finished_tls_sha384;
-    }
-    else
+    } else
 #endif
 #if defined(MBEDTLS_SHA256_C)
-    if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
+    if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) {
         handshake->tls_prf = tls_prf_sha256;
         handshake->calc_verify = ssl_calc_verify_tls_sha256;
         handshake->calc_finished = ssl_calc_finished_tls_sha256;
-    }
-    else
+    } else
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
     {
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -1595,9 +1551,9 @@
  *      PSA-PSA: minor_ver, conf
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake,
-                               unsigned char *master,
-                               const mbedtls_ssl_context *ssl )
+static int ssl_compute_master(mbedtls_ssl_handshake_params *handshake,
+                              unsigned char *master,
+                              const mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
@@ -1628,35 +1584,32 @@
 #if !defined(MBEDTLS_DEBUG_C) &&                    \
     !defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
     !(defined(MBEDTLS_USE_PSA_CRYPTO) &&            \
-      defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED))
+    defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED))
     ssl = NULL; /* make sure we don't use it except for those cases */
     (void) ssl;
 #endif
 
-    if( handshake->resume != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) );
-        return( 0 );
+    if (handshake->resume != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("no premaster (session resumed)"));
+        return 0;
     }
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    if( handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED )
-    {
+    if (handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED) {
         lbl  = "extended master secret";
         salt = session_hash;
-        handshake->calc_verify( ssl, session_hash, &salt_len );
+        handshake->calc_verify(ssl, session_hash, &salt_len);
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "session hash for extended master secret",
-                                  session_hash, salt_len );
+        MBEDTLS_SSL_DEBUG_BUF(3, "session hash for extended master secret",
+                              session_hash, salt_len);
     }
 #endif /* MBEDTLS_SSL_EXTENDED_MS_ENABLED */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO) &&          \
     defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( handshake->ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK &&
+    if (handshake->ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK &&
         ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
-        ssl_use_opaque_psk( ssl ) == 1 )
-    {
+        ssl_use_opaque_psk(ssl) == 1) {
         /* Perform PSK-to-MS expansion in a single step. */
         psa_status_t status;
         psa_algorithm_t alg;
@@ -1665,89 +1618,85 @@
             PSA_KEY_DERIVATION_OPERATION_INIT;
         mbedtls_md_type_t hash_alg = handshake->ciphersuite_info->mac;
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "perform PSA-based PSK-to-MS expansion" ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("perform PSA-based PSK-to-MS expansion"));
 
-        psk = mbedtls_ssl_get_opaque_psk( ssl );
+        psk = mbedtls_ssl_get_opaque_psk(ssl);
 
-        if( hash_alg == MBEDTLS_MD_SHA384 )
+        if (hash_alg == MBEDTLS_MD_SHA384) {
             alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384);
-        else
+        } else {
             alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256);
-
-        status = setup_psa_key_derivation( &derivation, psk, alg,
-                                           salt, salt_len,
-                                           (unsigned char const *) lbl,
-                                           (size_t) strlen( lbl ),
-                                           master_secret_len );
-        if( status != PSA_SUCCESS )
-        {
-            psa_key_derivation_abort( &derivation );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
         }
 
-        status = psa_key_derivation_output_bytes( &derivation,
-                                                  master,
-                                                  master_secret_len );
-        if( status != PSA_SUCCESS )
-        {
-            psa_key_derivation_abort( &derivation );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+        status = setup_psa_key_derivation(&derivation, psk, alg,
+                                          salt, salt_len,
+                                          (unsigned char const *) lbl,
+                                          (size_t) strlen(lbl),
+                                          master_secret_len);
+        if (status != PSA_SUCCESS) {
+            psa_key_derivation_abort(&derivation);
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
         }
 
-        status = psa_key_derivation_abort( &derivation );
-        if( status != PSA_SUCCESS )
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
-    }
-    else
+        status = psa_key_derivation_output_bytes(&derivation,
+                                                 master,
+                                                 master_secret_len);
+        if (status != PSA_SUCCESS) {
+            psa_key_derivation_abort(&derivation);
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        }
+
+        status = psa_key_derivation_abort(&derivation);
+        if (status != PSA_SUCCESS) {
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
+        }
+    } else
 #endif
     {
-        ret = handshake->tls_prf( handshake->premaster, handshake->pmslen,
-                                  lbl, salt, salt_len,
-                                  master,
-                                  master_secret_len );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
-            return( ret );
+        ret = handshake->tls_prf(handshake->premaster, handshake->pmslen,
+                                 lbl, salt, salt_len,
+                                 master,
+                                 master_secret_len);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "prf", ret);
+            return ret;
         }
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret",
-                               handshake->premaster,
-                               handshake->pmslen );
+        MBEDTLS_SSL_DEBUG_BUF(3, "premaster secret",
+                              handshake->premaster,
+                              handshake->pmslen);
 
-        mbedtls_platform_zeroize( handshake->premaster,
-                                  sizeof(handshake->premaster) );
+        mbedtls_platform_zeroize(handshake->premaster,
+                                 sizeof(handshake->premaster));
     }
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_derive_keys(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> derive keys"));
 
     /* Set PRF, calc_verify and calc_finished function pointers */
-    ret = ssl_set_handshake_prfs( ssl->handshake,
-                                  ssl->minor_ver,
-                                  ciphersuite_info->mac );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_set_handshake_prfs", ret );
-        return( ret );
+    ret = ssl_set_handshake_prfs(ssl->handshake,
+                                 ssl->minor_ver,
+                                 ciphersuite_info->mac);
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "ssl_set_handshake_prfs", ret);
+        return ret;
     }
 
     /* Compute master secret if needed */
-    ret = ssl_compute_master( ssl->handshake,
-                              ssl->session_negotiate->master,
-                              ssl );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compute_master", ret );
-        return( ret );
+    ret = ssl_compute_master(ssl->handshake,
+                             ssl->session_negotiate->master,
+                             ssl);
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "ssl_compute_master", ret);
+        return ret;
     }
 
     /* Swap the client and server random values:
@@ -1755,142 +1704,139 @@
      * - key derivation wants server+client (RFC 5246 6.3) */
     {
         unsigned char tmp[64];
-        memcpy( tmp, ssl->handshake->randbytes, 64 );
-        memcpy( ssl->handshake->randbytes, tmp + 32, 32 );
-        memcpy( ssl->handshake->randbytes + 32, tmp, 32 );
-        mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
+        memcpy(tmp, ssl->handshake->randbytes, 64);
+        memcpy(ssl->handshake->randbytes, tmp + 32, 32);
+        memcpy(ssl->handshake->randbytes + 32, tmp, 32);
+        mbedtls_platform_zeroize(tmp, sizeof(tmp));
     }
 
     /* Populate transform structure */
-    ret = ssl_populate_transform( ssl->transform_negotiate,
-                                  ssl->session_negotiate->ciphersuite,
-                                  ssl->session_negotiate->master,
+    ret = ssl_populate_transform(ssl->transform_negotiate,
+                                 ssl->session_negotiate->ciphersuite,
+                                 ssl->session_negotiate->master,
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-                                  ssl->session_negotiate->encrypt_then_mac,
+                                 ssl->session_negotiate->encrypt_then_mac,
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-                                  ssl->session_negotiate->trunc_hmac,
+                                 ssl->session_negotiate->trunc_hmac,
 #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
 #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-                                  ssl->session_negotiate->compression,
+                                 ssl->session_negotiate->compression,
 #endif
-                                  ssl->handshake->tls_prf,
-                                  ssl->handshake->randbytes,
-                                  ssl->minor_ver,
-                                  ssl->conf->endpoint,
-                                  ssl );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_populate_transform", ret );
-        return( ret );
+                                 ssl->handshake->tls_prf,
+                                 ssl->handshake->randbytes,
+                                 ssl->minor_ver,
+                                 ssl->conf->endpoint,
+                                 ssl);
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "ssl_populate_transform", ret);
+        return ret;
     }
 
     /* We no longer need Server/ClientHello.random values */
-    mbedtls_platform_zeroize( ssl->handshake->randbytes,
-                      sizeof( ssl->handshake->randbytes ) );
+    mbedtls_platform_zeroize(ssl->handshake->randbytes,
+                             sizeof(ssl->handshake->randbytes));
 
     /* Allocate compression buffer */
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->session_negotiate->compression == MBEDTLS_SSL_COMPRESS_DEFLATE &&
-        ssl->compress_buf == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) );
-        ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
-        if( ssl->compress_buf == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
-                                        MBEDTLS_SSL_COMPRESS_BUFFER_LEN ) );
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if (ssl->session_negotiate->compression == MBEDTLS_SSL_COMPRESS_DEFLATE &&
+        ssl->compress_buf == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Allocating compression buffer"));
+        ssl->compress_buf = mbedtls_calloc(1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN);
+        if (ssl->compress_buf == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%d bytes) failed",
+                                      MBEDTLS_SSL_COMPRESS_BUFFER_LEN));
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
         }
     }
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= derive keys"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-void ssl_calc_verify_ssl( const mbedtls_ssl_context *ssl,
-                          unsigned char *hash,
-                          size_t *hlen )
+void ssl_calc_verify_ssl(const mbedtls_ssl_context *ssl,
+                         unsigned char *hash,
+                         size_t *hlen)
 {
     mbedtls_md5_context md5;
     mbedtls_sha1_context sha1;
     unsigned char pad_1[48];
     unsigned char pad_2[48];
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify ssl"));
 
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
+    mbedtls_md5_init(&md5);
+    mbedtls_sha1_init(&sha1);
 
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
+    mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5);
+    mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1);
 
-    memset( pad_1, 0x36, 48 );
-    memset( pad_2, 0x5C, 48 );
+    memset(pad_1, 0x36, 48);
+    memset(pad_2, 0x5C, 48);
 
-    mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
-    mbedtls_md5_update_ret( &md5, pad_1, 48 );
-    mbedtls_md5_finish_ret( &md5, hash );
+    mbedtls_md5_update_ret(&md5, ssl->session_negotiate->master, 48);
+    mbedtls_md5_update_ret(&md5, pad_1, 48);
+    mbedtls_md5_finish_ret(&md5, hash);
 
-    mbedtls_md5_starts_ret( &md5 );
-    mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
-    mbedtls_md5_update_ret( &md5, pad_2, 48 );
-    mbedtls_md5_update_ret( &md5, hash,  16 );
-    mbedtls_md5_finish_ret( &md5, hash );
+    mbedtls_md5_starts_ret(&md5);
+    mbedtls_md5_update_ret(&md5, ssl->session_negotiate->master, 48);
+    mbedtls_md5_update_ret(&md5, pad_2, 48);
+    mbedtls_md5_update_ret(&md5, hash,  16);
+    mbedtls_md5_finish_ret(&md5, hash);
 
-    mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, pad_1, 40 );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
+    mbedtls_sha1_update_ret(&sha1, ssl->session_negotiate->master, 48);
+    mbedtls_sha1_update_ret(&sha1, pad_1, 40);
+    mbedtls_sha1_finish_ret(&sha1, hash + 16);
 
-    mbedtls_sha1_starts_ret( &sha1 );
-    mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, pad_2, 40 );
-    mbedtls_sha1_update_ret( &sha1, hash + 16, 20 );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
+    mbedtls_sha1_starts_ret(&sha1);
+    mbedtls_sha1_update_ret(&sha1, ssl->session_negotiate->master, 48);
+    mbedtls_sha1_update_ret(&sha1, pad_2, 40);
+    mbedtls_sha1_update_ret(&sha1, hash + 16, 20);
+    mbedtls_sha1_finish_ret(&sha1, hash + 16);
 
     *hlen = 36;
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
+    mbedtls_md5_free(&md5);
+    mbedtls_sha1_free(&sha1);
 
     return;
 }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
-void ssl_calc_verify_tls( const mbedtls_ssl_context *ssl,
-                          unsigned char *hash,
-                          size_t *hlen )
+void ssl_calc_verify_tls(const mbedtls_ssl_context *ssl,
+                         unsigned char *hash,
+                         size_t *hlen)
 {
     mbedtls_md5_context md5;
     mbedtls_sha1_context sha1;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify tls"));
 
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
+    mbedtls_md5_init(&md5);
+    mbedtls_sha1_init(&sha1);
 
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
+    mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5);
+    mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1);
 
-    mbedtls_md5_finish_ret( &md5,  hash );
-    mbedtls_sha1_finish_ret( &sha1, hash + 16 );
+    mbedtls_md5_finish_ret(&md5,  hash);
+    mbedtls_sha1_finish_ret(&sha1, hash + 16);
 
     *hlen = 36;
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
+    mbedtls_md5_free(&md5);
+    mbedtls_sha1_free(&sha1);
 
     return;
 }
@@ -1898,98 +1844,94 @@
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
-void ssl_calc_verify_tls_sha256( const mbedtls_ssl_context *ssl,
-                                 unsigned char *hash,
-                                 size_t *hlen )
+void ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *ssl,
+                                unsigned char *hash,
+                                size_t *hlen)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     size_t hash_size;
     psa_status_t status;
     psa_hash_operation_t sha256_psa = psa_hash_operation_init();
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha256" ) );
-    status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> PSA calc verify sha256"));
+    status = psa_hash_clone(&ssl->handshake->fin_sha256_psa, &sha256_psa);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed"));
         return;
     }
 
-    status = psa_hash_finish( &sha256_psa, hash, 32, &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
+    status = psa_hash_finish(&sha256_psa, hash, 32, &hash_size);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed"));
         return;
     }
 
     *hlen = 32;
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= PSA calc verify"));
 #else
     mbedtls_sha256_context sha256;
 
-    mbedtls_sha256_init( &sha256 );
+    mbedtls_sha256_init(&sha256);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha256"));
 
-    mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
-    mbedtls_sha256_finish_ret( &sha256, hash );
+    mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256);
+    mbedtls_sha256_finish_ret(&sha256, hash);
 
     *hlen = 32;
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
-    mbedtls_sha256_free( &sha256 );
+    mbedtls_sha256_free(&sha256);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
     return;
 }
 #endif /* MBEDTLS_SHA256_C */
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-void ssl_calc_verify_tls_sha384( const mbedtls_ssl_context *ssl,
-                                 unsigned char *hash,
-                                 size_t *hlen )
+void ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *ssl,
+                                unsigned char *hash,
+                                size_t *hlen)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     size_t hash_size;
     psa_status_t status;
     psa_hash_operation_t sha384_psa = psa_hash_operation_init();
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha384" ) );
-    status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> PSA calc verify sha384"));
+    status = psa_hash_clone(&ssl->handshake->fin_sha384_psa, &sha384_psa);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed"));
         return;
     }
 
-    status = psa_hash_finish( &sha384_psa, hash, 48, &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
+    status = psa_hash_finish(&sha384_psa, hash, 48, &hash_size);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed"));
         return;
     }
 
     *hlen = 48;
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= PSA calc verify"));
 #else
     mbedtls_sha512_context sha512;
 
-    mbedtls_sha512_init( &sha512 );
+    mbedtls_sha512_init(&sha512);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha384"));
 
-    mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
-    mbedtls_sha512_finish_ret( &sha512, hash );
+    mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha512);
+    mbedtls_sha512_finish_ret(&sha512, hash);
 
     *hlen = 48;
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen );
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen);
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
-    mbedtls_sha512_free( &sha512 );
+    mbedtls_sha512_free(&sha512);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
     return;
 }
@@ -1997,22 +1939,21 @@
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
-int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex )
+int mbedtls_ssl_psk_derive_premaster(mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex)
 {
     unsigned char *p = ssl->handshake->premaster;
-    unsigned char *end = p + sizeof( ssl->handshake->premaster );
+    unsigned char *end = p + sizeof(ssl->handshake->premaster);
     const unsigned char *psk = NULL;
     size_t psk_len = 0;
 
-    if( mbedtls_ssl_get_psk( ssl, &psk, &psk_len )
-            == MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED )
-    {
+    if (mbedtls_ssl_get_psk(ssl, &psk, &psk_len)
+        == MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) {
         /*
          * This should never happen because the existence of a PSK is always
          * checked before calling this function
          */
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /*
@@ -2023,152 +1964,142 @@
      * with "other_secret" depending on the particular key exchange
      */
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK )
-    {
-        if( end - p < 2 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (key_ex == MBEDTLS_KEY_EXCHANGE_PSK) {
+        if (end - p < 2) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
-        MBEDTLS_PUT_UINT16_BE( psk_len, p, 0 );
+        MBEDTLS_PUT_UINT16_BE(psk_len, p, 0);
         p += 2;
 
-        if( end < p || (size_t)( end - p ) < psk_len )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (end < p || (size_t) (end - p) < psk_len) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
-        memset( p, 0, psk_len );
+        memset(p, 0, psk_len);
         p += psk_len;
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-    {
+    if (key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK) {
         /*
          * other_secret already set by the ClientKeyExchange message,
          * and is 48 bytes long
          */
-        if( end - p < 2 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (end - p < 2) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
         *p++ = 0;
         *p++ = 48;
         p += 48;
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-    {
+    if (key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t len;
 
         /* Write length only when we know the actual value */
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                      p + 2, end - ( p + 2 ), &len,
-                                      ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( ret );
+        if ((ret = mbedtls_dhm_calc_secret(&ssl->handshake->dhm_ctx,
+                                           p + 2, end - (p + 2), &len,
+                                           ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_calc_secret", ret);
+            return ret;
         }
-        MBEDTLS_PUT_UINT16_BE( len, p, 0 );
+        MBEDTLS_PUT_UINT16_BE(len, p, 0);
         p += 2 + len;
 
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
-    }
-    else
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: K ", &ssl->handshake->dhm_ctx.K);
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
+    if (key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t zlen;
 
-        if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen,
-                                       p + 2, end - ( p + 2 ),
-                                       ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-            return( ret );
+        if ((ret = mbedtls_ecdh_calc_secret(&ssl->handshake->ecdh_ctx, &zlen,
+                                            p + 2, end - (p + 2),
+                                            ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_calc_secret", ret);
+            return ret;
         }
 
-        MBEDTLS_PUT_UINT16_BE( zlen, p, 0 );
+        MBEDTLS_PUT_UINT16_BE(zlen, p, 0);
         p += 2 + zlen;
 
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Z );
-    }
-    else
+        MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx,
+                               MBEDTLS_DEBUG_ECDH_Z);
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /* opaque psk<0..2^16-1>; */
-    if( end - p < 2 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (end - p < 2) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    MBEDTLS_PUT_UINT16_BE( psk_len, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(psk_len, p, 0);
     p += 2;
 
-    if( end < p || (size_t)( end - p ) < psk_len )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (end < p || (size_t) (end - p) < psk_len) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    memcpy( p, psk, psk_len );
+    memcpy(p, psk, psk_len);
     p += psk_len;
 
     ssl->handshake->pmslen = p - ssl->handshake->premaster;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
 
 #if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_hello_request( mbedtls_ssl_context *ssl );
+static int ssl_write_hello_request(mbedtls_ssl_context *ssl);
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-int mbedtls_ssl_resend_hello_request( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_resend_hello_request(mbedtls_ssl_context *ssl)
 {
     /* If renegotiation is not enforced, retransmit until we would reach max
      * timeout if we were using the usual handshake doubling scheme */
-    if( ssl->conf->renego_max_records < 0 )
-    {
+    if (ssl->conf->renego_max_records < 0) {
         uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1;
         unsigned char doublings = 1;
 
-        while( ratio != 0 )
-        {
+        while (ratio != 0) {
             ++doublings;
             ratio >>= 1;
         }
 
-        if( ++ssl->renego_records_seen > doublings )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) );
-            return( 0 );
+        if (++ssl->renego_records_seen > doublings) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("no longer retransmitting hello request"));
+            return 0;
         }
     }
 
-    return( ssl_write_hello_request( ssl ) );
+    return ssl_write_hello_request(ssl);
 }
 #endif
 #endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-static void ssl_clear_peer_cert( mbedtls_ssl_session *session )
+static void ssl_clear_peer_cert(mbedtls_ssl_session *session)
 {
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( session->peer_cert != NULL )
-    {
-        mbedtls_x509_crt_free( session->peer_cert );
-        mbedtls_free( session->peer_cert );
+    if (session->peer_cert != NULL) {
+        mbedtls_x509_crt_free(session->peer_cert);
+        mbedtls_free(session->peer_cert);
         session->peer_cert = NULL;
     }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( session->peer_cert_digest != NULL )
-    {
+    if (session->peer_cert_digest != NULL) {
         /* Zeroization is not necessary. */
-        mbedtls_free( session->peer_cert_digest );
+        mbedtls_free(session->peer_cert_digest);
         session->peer_cert_digest      = NULL;
         session->peer_cert_digest_type = MBEDTLS_MD_NONE;
         session->peer_cert_digest_len  = 0;
@@ -2182,46 +2113,44 @@
  */
 #if !defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
 /* No certificate support -> dummy functions */
-int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate"));
 
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
+    if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+    return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
 }
 
-int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate"));
 
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
+    if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+    return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
 }
 
 #else /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 /* Some certificate support -> implement write and parse */
 
-int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     size_t i, n;
@@ -2229,23 +2158,20 @@
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate"));
 
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
+    if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
 #if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
-        if( ssl->client_auth == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        if (ssl->client_auth == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate"));
             ssl->state++;
-            return( 0 );
+            return 0;
         }
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
@@ -2253,32 +2179,29 @@
          * If using SSLv3 and got no cert, send an Alert message
          * (otherwise an empty Certificate message will be sent).
          */
-        if( mbedtls_ssl_own_cert( ssl )  == NULL &&
-            ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-        {
+        if (mbedtls_ssl_own_cert(ssl)  == NULL &&
+            ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) {
             ssl->out_msglen  = 2;
             ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
             ssl->out_msg[0]  = MBEDTLS_SSL_ALERT_LEVEL_WARNING;
             ssl->out_msg[1]  = MBEDTLS_SSL_ALERT_MSG_NO_CERT;
 
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("got no certificate to send"));
             goto write_msg;
         }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
     }
 #endif /* MBEDTLS_SSL_CLI_C */
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( mbedtls_ssl_own_cert( ssl ) == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) );
-            return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        if (mbedtls_ssl_own_cert(ssl) == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("got no certificate to send"));
+            return MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED;
         }
     }
 #endif
 
-    MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) );
+    MBEDTLS_SSL_DEBUG_CRT(3, "own certificate", mbedtls_ssl_own_cert(ssl));
 
     /*
      *     0  .  0    handshake type
@@ -2290,30 +2213,28 @@
      *    n+3 . ...   upper level cert, etc.
      */
     i = 7;
-    crt = mbedtls_ssl_own_cert( ssl );
+    crt = mbedtls_ssl_own_cert(ssl);
 
-    while( crt != NULL )
-    {
+    while (crt != NULL) {
         n = crt->raw.len;
-        if( n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %" MBEDTLS_PRINTF_SIZET
-                                        " > %" MBEDTLS_PRINTF_SIZET,
-                           i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-            return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE );
+        if (n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("certificate too large, %" MBEDTLS_PRINTF_SIZET
+                                      " > %" MBEDTLS_PRINTF_SIZET,
+                                      i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN));
+            return MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE;
         }
 
-        ssl->out_msg[i    ] = MBEDTLS_BYTE_2( n );
-        ssl->out_msg[i + 1] = MBEDTLS_BYTE_1( n );
-        ssl->out_msg[i + 2] = MBEDTLS_BYTE_0( n );
+        ssl->out_msg[i] = MBEDTLS_BYTE_2(n);
+        ssl->out_msg[i + 1] = MBEDTLS_BYTE_1(n);
+        ssl->out_msg[i + 2] = MBEDTLS_BYTE_0(n);
 
-        i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n );
+        i += 3; memcpy(ssl->out_msg + i, crt->raw.p, n);
         i += n; crt = crt->next;
     }
 
-    ssl->out_msg[4]  = MBEDTLS_BYTE_2( i - 7 );
-    ssl->out_msg[5]  = MBEDTLS_BYTE_1( i - 7 );
-    ssl->out_msg[6]  = MBEDTLS_BYTE_0( i - 7 );
+    ssl->out_msg[4]  = MBEDTLS_BYTE_2(i - 7);
+    ssl->out_msg[5]  = MBEDTLS_BYTE_1(i - 7);
+    ssl->out_msg[6]  = MBEDTLS_BYTE_0(i - 7);
 
     ssl->out_msglen  = i;
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
@@ -2325,40 +2246,41 @@
 
     ssl->state++;
 
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write certificate"));
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
 
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
-                                         unsigned char *crt_buf,
-                                         size_t crt_buf_len )
+static int ssl_check_peer_crt_unchanged(mbedtls_ssl_context *ssl,
+                                        unsigned char *crt_buf,
+                                        size_t crt_buf_len)
 {
     mbedtls_x509_crt const * const peer_crt = ssl->session->peer_cert;
 
-    if( peer_crt == NULL )
-        return( -1 );
+    if (peer_crt == NULL) {
+        return -1;
+    }
 
-    if( peer_crt->raw.len != crt_buf_len )
-        return( -1 );
+    if (peer_crt->raw.len != crt_buf_len) {
+        return -1;
+    }
 
-    return( memcmp( peer_crt->raw.p, crt_buf, peer_crt->raw.len ) );
+    return memcmp(peer_crt->raw.p, crt_buf, peer_crt->raw.len);
 }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
-                                         unsigned char *crt_buf,
-                                         size_t crt_buf_len )
+static int ssl_check_peer_crt_unchanged(mbedtls_ssl_context *ssl,
+                                        unsigned char *crt_buf,
+                                        size_t crt_buf_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char const * const peer_cert_digest =
@@ -2366,22 +2288,25 @@
     mbedtls_md_type_t const peer_cert_digest_type =
         ssl->session->peer_cert_digest_type;
     mbedtls_md_info_t const * const digest_info =
-        mbedtls_md_info_from_type( peer_cert_digest_type );
+        mbedtls_md_info_from_type(peer_cert_digest_type);
     unsigned char tmp_digest[MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN];
     size_t digest_len;
 
-    if( peer_cert_digest == NULL || digest_info == NULL )
-        return( -1 );
+    if (peer_cert_digest == NULL || digest_info == NULL) {
+        return -1;
+    }
 
-    digest_len = mbedtls_md_get_size( digest_info );
-    if( digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN )
-        return( -1 );
+    digest_len = mbedtls_md_get_size(digest_info);
+    if (digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN) {
+        return -1;
+    }
 
-    ret = mbedtls_md( digest_info, crt_buf, crt_buf_len, tmp_digest );
-    if( ret != 0 )
-        return( -1 );
+    ret = mbedtls_md(digest_info, crt_buf, crt_buf_len, tmp_digest);
+    if (ret != 0) {
+        return -1;
+    }
 
-    return( memcmp( tmp_digest, peer_cert_digest, digest_len ) );
+    return memcmp(tmp_digest, peer_cert_digest, digest_len);
 }
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 #endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */
@@ -2391,125 +2316,116 @@
  * perform basic checks, but leave actual verification to the caller
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
-                                        mbedtls_x509_crt *chain )
+static int ssl_parse_certificate_chain(mbedtls_ssl_context *ssl,
+                                       mbedtls_x509_crt *chain)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
-    int crt_cnt=0;
+    int crt_cnt = 0;
 #endif
     size_t i, n;
     uint8_t alert;
 
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE);
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE ||
-        ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+    if (ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE ||
+        ssl->in_hslen < mbedtls_ssl_hs_hdr_len(ssl) + 3 + 3) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
     }
 
-    i = mbedtls_ssl_hs_hdr_len( ssl );
+    i = mbedtls_ssl_hs_hdr_len(ssl);
 
     /*
      * Same message structure as in mbedtls_ssl_write_certificate()
      */
-    n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2];
+    n = (ssl->in_msg[i+1] << 8) | ssl->in_msg[i+2];
 
-    if( ssl->in_msg[i] != 0 ||
-        ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+    if (ssl->in_msg[i] != 0 ||
+        ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len(ssl)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
     }
 
     /* Make &ssl->in_msg[i] point to the beginning of the CRT chain. */
     i += 3;
 
     /* Iterate through and parse the CRTs in the provided chain. */
-    while( i < ssl->in_hslen )
-    {
+    while (i < ssl->in_hslen) {
         /* Check that there's room for the next CRT's length fields. */
-        if ( i + 3 > ssl->in_hslen ) {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                              MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                              MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+        if (i + 3 > ssl->in_hslen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+            mbedtls_ssl_send_alert_message(ssl,
+                                           MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
         }
         /* In theory, the CRT can be up to 2**24 Bytes, but we don't support
          * anything beyond 2**16 ~ 64K. */
-        if( ssl->in_msg[i] != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                            MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+        if (ssl->in_msg[i] != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+            mbedtls_ssl_send_alert_message(ssl,
+                                           MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
         }
 
         /* Read length of the next CRT in the chain. */
-        n = ( (unsigned int) ssl->in_msg[i + 1] << 8 )
+        n = ((unsigned int) ssl->in_msg[i + 1] << 8)
             | (unsigned int) ssl->in_msg[i + 2];
         i += 3;
 
-        if( n < 128 || i + n > ssl->in_hslen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
-            mbedtls_ssl_send_alert_message( ssl,
-                                 MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                 MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+        if (n < 128 || i + n > ssl->in_hslen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message"));
+            mbedtls_ssl_send_alert_message(ssl,
+                                           MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
         }
 
         /* Check if we're handling the first CRT in the chain. */
 #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
-        if( crt_cnt++ == 0 &&
+        if (crt_cnt++ == 0 &&
             ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        {
+            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) {
             /* During client-side renegotiation, check that the server's
              * end-CRTs hasn't changed compared to the initial handshake,
              * mitigating the triple handshake attack. On success, reuse
              * the original end-CRT instead of parsing it again. */
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "Check that peer CRT hasn't changed during renegotiation" ) );
-            if( ssl_check_peer_crt_unchanged( ssl,
-                                              &ssl->in_msg[i],
-                                              n ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl,
-                                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
-                return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
+            MBEDTLS_SSL_DEBUG_MSG(3, ("Check that peer CRT hasn't changed during renegotiation"));
+            if (ssl_check_peer_crt_unchanged(ssl,
+                                             &ssl->in_msg[i],
+                                             n) != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("new server cert during renegotiation"));
+                mbedtls_ssl_send_alert_message(ssl,
+                                               MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                               MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED);
+                return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
             }
 
             /* Now we can safely free the original chain. */
-            ssl_clear_peer_cert( ssl->session );
+            ssl_clear_peer_cert(ssl->session);
         }
 #endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */
 
         /* Parse the next certificate in the chain. */
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        ret = mbedtls_x509_crt_parse_der( chain, ssl->in_msg + i, n );
+        ret = mbedtls_x509_crt_parse_der(chain, ssl->in_msg + i, n);
 #else
         /* If we don't need to store the CRT chain permanently, parse
          * it in-place from the input buffer instead of making a copy. */
-        ret = mbedtls_x509_crt_parse_der_nocopy( chain, ssl->in_msg + i, n );
+        ret = mbedtls_x509_crt_parse_der_nocopy(chain, ssl->in_msg + i, n);
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-        switch( ret )
-        {
+        switch (ret) {
             case 0: /*ok*/
             case MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND:
                 /* Ignore certificate with an unknown algorithm: maybe a
@@ -2526,57 +2442,55 @@
 
             default:
                 alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
-            crt_parse_der_failed:
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert );
-                MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret );
-                return( ret );
+crt_parse_der_failed:
+                mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert);
+                MBEDTLS_SSL_DEBUG_RET(1, " mbedtls_x509_crt_parse_der", ret);
+                return ret;
         }
 
         i += n;
     }
 
-    MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", chain );
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_CRT(3, "peer certificate", chain);
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_SRV_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
+static int ssl_srv_check_client_no_crt_notification(mbedtls_ssl_context *ssl)
 {
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-        return( -1 );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        return -1;
+    }
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
     /*
      * Check if the client sent an empty certificate
      */
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
-    {
-        if( ssl->in_msglen  == 2                        &&
+    if (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) {
+        if (ssl->in_msglen  == 2                        &&
             ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT            &&
             ssl->in_msg[0]  == MBEDTLS_SSL_ALERT_LEVEL_WARNING  &&
-            ssl->in_msg[1]  == MBEDTLS_SSL_ALERT_MSG_NO_CERT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) );
-            return( 0 );
+            ssl->in_msg[1]  == MBEDTLS_SSL_ALERT_MSG_NO_CERT) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("SSLv3 client has no certificate"));
+            return 0;
         }
 
-        return( -1 );
+        return -1;
     }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->in_hslen   == 3 + mbedtls_ssl_hs_hdr_len( ssl ) &&
+    if (ssl->in_hslen   == 3 + mbedtls_ssl_hs_hdr_len(ssl) &&
         ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE    &&
         ssl->in_msg[0]  == MBEDTLS_SSL_HS_CERTIFICATE   &&
-        memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) );
-        return( 0 );
+        memcmp(ssl->in_msg + mbedtls_ssl_hs_hdr_len(ssl), "\0\0\0", 3) == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("TLSv1 client has no certificate"));
+        return 0;
     }
 
-    return( -1 );
+    return -1;
 #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
           MBEDTLS_SSL_PROTO_TLS1_2 */
 }
@@ -2591,40 +2505,40 @@
 #define SSL_CERTIFICATE_EXPECTED 0
 #define SSL_CERTIFICATE_SKIP     1
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
-                                             int authmode )
+static int ssl_parse_certificate_coordinate(mbedtls_ssl_context *ssl,
+                                            int authmode)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) )
-        return( SSL_CERTIFICATE_SKIP );
+    if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) {
+        return SSL_CERTIFICATE_SKIP;
+    }
 
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-            return( SSL_CERTIFICATE_SKIP );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK) {
+            return SSL_CERTIFICATE_SKIP;
+        }
 
-        if( authmode == MBEDTLS_SSL_VERIFY_NONE )
-        {
+        if (authmode == MBEDTLS_SSL_VERIFY_NONE) {
             ssl->session_negotiate->verify_result =
                 MBEDTLS_X509_BADCERT_SKIP_VERIFY;
-            return( SSL_CERTIFICATE_SKIP );
+            return SSL_CERTIFICATE_SKIP;
         }
     }
 #else
     ((void) authmode);
 #endif /* MBEDTLS_SSL_SRV_C */
 
-    return( SSL_CERTIFICATE_EXPECTED );
+    return SSL_CERTIFICATE_EXPECTED;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
-                                         int authmode,
-                                         mbedtls_x509_crt *chain,
-                                         void *rs_ctx )
+static int ssl_parse_certificate_verify(mbedtls_ssl_context *ssl,
+                                        int authmode,
+                                        mbedtls_x509_crt *chain,
+                                        void *rs_ctx)
 {
     int ret = 0;
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@@ -2634,18 +2548,16 @@
     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
     void *p_vrfy;
 
-    if( authmode == MBEDTLS_SSL_VERIFY_NONE )
-        return( 0 );
+    if (authmode == MBEDTLS_SSL_VERIFY_NONE) {
+        return 0;
+    }
 
-    if( ssl->f_vrfy != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use context-specific verification callback" ) );
+    if (ssl->f_vrfy != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Use context-specific verification callback"));
         f_vrfy = ssl->f_vrfy;
         p_vrfy = ssl->p_vrfy;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use configuration-specific verification callback" ) );
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Use configuration-specific verification callback"));
         f_vrfy = ssl->conf->f_vrfy;
         p_vrfy = ssl->conf->p_vrfy;
     }
@@ -2654,12 +2566,11 @@
      * Main check: verify certificate
      */
 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-    if( ssl->conf->f_ca_cb != NULL )
-    {
+    if (ssl->conf->f_ca_cb != NULL) {
         ((void) rs_ctx);
         have_ca_chain = 1;
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "use CA callback for X.509 CRT verification" ) );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("use CA callback for X.509 CRT verification"));
         ret = mbedtls_x509_crt_verify_with_ca_cb(
             chain,
             ssl->conf->f_ca_cb,
@@ -2667,29 +2578,27 @@
             ssl->conf->cert_profile,
             ssl->hostname,
             &ssl->session_negotiate->verify_result,
-            f_vrfy, p_vrfy );
-    }
-    else
+            f_vrfy, p_vrfy);
+    } else
 #endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
     {
         mbedtls_x509_crt *ca_chain;
         mbedtls_x509_crl *ca_crl;
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        if( ssl->handshake->sni_ca_chain != NULL )
-        {
+        if (ssl->handshake->sni_ca_chain != NULL) {
             ca_chain = ssl->handshake->sni_ca_chain;
             ca_crl   = ssl->handshake->sni_ca_crl;
-        }
-        else
+        } else
 #endif
         {
             ca_chain = ssl->conf->ca_chain;
             ca_crl   = ssl->conf->ca_crl;
         }
 
-        if( ca_chain != NULL )
+        if (ca_chain != NULL) {
             have_ca_chain = 1;
+        }
 
         ret = mbedtls_x509_crt_verify_restartable(
             chain,
@@ -2697,17 +2606,17 @@
             ssl->conf->cert_profile,
             ssl->hostname,
             &ssl->session_negotiate->verify_result,
-            f_vrfy, p_vrfy, rs_ctx );
+            f_vrfy, p_vrfy, rs_ctx);
     }
 
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret );
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "x509_verify_cert", ret);
     }
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
-        return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS );
+    if (ret == MBEDTLS_ERR_ECP_IN_PROGRESS) {
+        return MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
+    }
 #endif
 
     /*
@@ -2721,26 +2630,26 @@
         /* If certificate uses an EC key, make sure the curve is OK.
          * This is a public key, so it can't be opaque, so can_do() is a good
          * enough check to ensure pk_ec() is safe to use here. */
-        if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
-            mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
-        {
+        if (mbedtls_pk_can_do(pk, MBEDTLS_PK_ECKEY) &&
+            mbedtls_ssl_check_curve(ssl, mbedtls_pk_ec(*pk)->grp.id) != 0) {
             ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_BAD_KEY;
 
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) );
-            if( ret == 0 )
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate (EC key curve)"));
+            if (ret == 0) {
                 ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
+            }
         }
     }
 #endif /* MBEDTLS_ECP_C */
 
-    if( mbedtls_ssl_check_cert_usage( chain,
-                                      ciphersuite_info,
-                                      ! ssl->conf->endpoint,
-                                      &ssl->session_negotiate->verify_result ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) );
-        if( ret == 0 )
+    if (mbedtls_ssl_check_cert_usage(chain,
+                                     ciphersuite_info,
+                                     !ssl->conf->endpoint,
+                                     &ssl->session_negotiate->verify_result) != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate (usage extensions)"));
+        if (ret == 0) {
             ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
+        }
     }
 
     /* mbedtls_x509_crt_verify_with_profile is supposed to report a
@@ -2749,122 +2658,115 @@
      * of error codes, including those from the user provided f_vrfy
      * functions, are treated as fatal and lead to a failure of
      * ssl_parse_certificate even if verification was optional. */
-    if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL &&
-        ( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ||
-          ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ) )
-    {
+    if (authmode == MBEDTLS_SSL_VERIFY_OPTIONAL &&
+        (ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ||
+         ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE)) {
         ret = 0;
     }
 
-    if( have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) );
+    if (have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no CA chain"));
         ret = MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED;
     }
 
-    if( ret != 0 )
-    {
+    if (ret != 0) {
         uint8_t alert;
 
         /* The certificate may have been rejected for several reasons.
            Pick one and send the corresponding alert. Which alert to send
            may be a subject of debate in some cases. */
-        if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER )
+        if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER) {
             alert = MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH) {
             alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED) {
             alert = MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED) {
             alert = MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED;
-        else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED )
+        } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED) {
             alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA;
-        else
+        } else {
             alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN;
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        alert );
+        }
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       alert);
     }
 
 #if defined(MBEDTLS_DEBUG_C)
-    if( ssl->session_negotiate->verify_result != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %08x",
-                                    (unsigned int) ssl->session_negotiate->verify_result ) );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Certificate verification flags clear" ) );
+    if (ssl->session_negotiate->verify_result != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("! Certificate verification flags %08x",
+                                  (unsigned int) ssl->session_negotiate->verify_result));
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Certificate verification flags clear"));
     }
 #endif /* MBEDTLS_DEBUG_C */
 
-    return( ret );
+    return ret;
 }
 
 #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
-                                         unsigned char *start, size_t len )
+static int ssl_remember_peer_crt_digest(mbedtls_ssl_context *ssl,
+                                        unsigned char *start, size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     /* Remember digest of the peer's end-CRT. */
     ssl->session_negotiate->peer_cert_digest =
-        mbedtls_calloc( 1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN );
-    if( ssl->session_negotiate->peer_cert_digest == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
-                                    MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+        mbedtls_calloc(1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN);
+    if (ssl->session_negotiate->peer_cert_digest == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%d bytes) failed",
+                                  MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN));
+        mbedtls_ssl_send_alert_message(ssl,
+                                       MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
 
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
 
-    ret = mbedtls_md( mbedtls_md_info_from_type(
-                          MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE ),
-                      start, len,
-                      ssl->session_negotiate->peer_cert_digest );
+    ret = mbedtls_md(mbedtls_md_info_from_type(
+                         MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE),
+                     start, len,
+                     ssl->session_negotiate->peer_cert_digest);
 
     ssl->session_negotiate->peer_cert_digest_type =
         MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE;
     ssl->session_negotiate->peer_cert_digest_len =
         MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN;
 
-    return( ret );
+    return ret;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl,
-                                     unsigned char *start, size_t len )
+static int ssl_remember_peer_pubkey(mbedtls_ssl_context *ssl,
+                                    unsigned char *start, size_t len)
 {
     unsigned char *end = start + len;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
     /* Make a copy of the peer's raw public key. */
-    mbedtls_pk_init( &ssl->handshake->peer_pubkey );
-    ret = mbedtls_pk_parse_subpubkey( &start, end,
-                                      &ssl->handshake->peer_pubkey );
-    if( ret != 0 )
-    {
+    mbedtls_pk_init(&ssl->handshake->peer_pubkey);
+    ret = mbedtls_pk_parse_subpubkey(&start, end,
+                                     &ssl->handshake->peer_pubkey);
+    if (ret != 0) {
         /* We should have parsed the public key before. */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
-int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl)
 {
     int ret = 0;
     int crt_expected;
@@ -2878,40 +2780,37 @@
     void *rs_ctx = NULL;
     mbedtls_x509_crt *chain = NULL;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate"));
 
-    crt_expected = ssl_parse_certificate_coordinate( ssl, authmode );
-    if( crt_expected == SSL_CERTIFICATE_SKIP )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
+    crt_expected = ssl_parse_certificate_coordinate(ssl, authmode);
+    if (crt_expected == SSL_CERTIFICATE_SKIP) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate"));
         goto exit;
     }
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    if( ssl->handshake->ecrs_enabled &&
-        ssl->handshake->ecrs_state == ssl_ecrs_crt_verify )
-    {
+    if (ssl->handshake->ecrs_enabled &&
+        ssl->handshake->ecrs_state == ssl_ecrs_crt_verify) {
         chain = ssl->handshake->ecrs_peer_cert;
         ssl->handshake->ecrs_peer_cert = NULL;
         goto crt_verify;
     }
 #endif
 
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
+    if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) {
         /* mbedtls_ssl_read_record may have sent an alert already. We
            let it decide whether to alert. */
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret);
         goto exit;
     }
 
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl_srv_check_client_no_crt_notification( ssl ) == 0 )
-    {
+    if (ssl_srv_check_client_no_crt_notification(ssl) == 0) {
         ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING;
 
-        if( authmode != MBEDTLS_SSL_VERIFY_OPTIONAL )
+        if (authmode != MBEDTLS_SSL_VERIFY_OPTIONAL) {
             ret = MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE;
+        }
 
         goto exit;
     }
@@ -2919,39 +2818,42 @@
 
     /* Clear existing peer CRT structure in case we tried to
      * reuse a session but it failed, and allocate a new one. */
-    ssl_clear_peer_cert( ssl->session_negotiate );
+    ssl_clear_peer_cert(ssl->session_negotiate);
 
-    chain = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
-    if( chain == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed",
-                                    sizeof( mbedtls_x509_crt ) ) );
-        mbedtls_ssl_send_alert_message( ssl,
-                                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+    chain = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
+    if (chain == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed",
+                                  sizeof(mbedtls_x509_crt)));
+        mbedtls_ssl_send_alert_message(ssl,
+                                       MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
 
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto exit;
     }
-    mbedtls_x509_crt_init( chain );
+    mbedtls_x509_crt_init(chain);
 
-    ret = ssl_parse_certificate_chain( ssl, chain );
-    if( ret != 0 )
+    ret = ssl_parse_certificate_chain(ssl, chain);
+    if (ret != 0) {
         goto exit;
+    }
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    if( ssl->handshake->ecrs_enabled)
+    if (ssl->handshake->ecrs_enabled) {
         ssl->handshake->ecrs_state = ssl_ecrs_crt_verify;
+    }
 
 crt_verify:
-    if( ssl->handshake->ecrs_enabled)
+    if (ssl->handshake->ecrs_enabled) {
         rs_ctx = &ssl->handshake->ecrs_ctx;
+    }
 #endif
 
-    ret = ssl_parse_certificate_verify( ssl, authmode,
-                                        chain, rs_ctx );
-    if( ret != 0 )
+    ret = ssl_parse_certificate_verify(ssl, authmode,
+                                       chain, rs_ctx);
+    if (ret != 0) {
         goto exit;
+    }
 
 #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
     {
@@ -2971,17 +2873,19 @@
 
         /* Free the CRT structures before computing
          * digest and copying the peer's public key. */
-        mbedtls_x509_crt_free( chain );
-        mbedtls_free( chain );
+        mbedtls_x509_crt_free(chain);
+        mbedtls_free(chain);
         chain = NULL;
 
-        ret = ssl_remember_peer_crt_digest( ssl, crt_start, crt_len );
-        if( ret != 0 )
+        ret = ssl_remember_peer_crt_digest(ssl, crt_start, crt_len);
+        if (ret != 0) {
             goto exit;
+        }
 
-        ret = ssl_remember_peer_pubkey( ssl, pk_start, pk_len );
-        if( ret != 0 )
+        ret = ssl_remember_peer_pubkey(ssl, pk_start, pk_len);
+        if (ret != 0) {
             goto exit;
+        }
     }
 #else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
     /* Pass ownership to session structure. */
@@ -2989,108 +2893,107 @@
     chain = NULL;
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse certificate"));
 
 exit:
 
-    if( ret == 0 )
+    if (ret == 0) {
         ssl->state++;
+    }
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS )
-    {
+    if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) {
         ssl->handshake->ecrs_peer_cert = chain;
         chain = NULL;
     }
 #endif
 
-    if( chain != NULL )
-    {
-        mbedtls_x509_crt_free( chain );
-        mbedtls_free( chain );
+    if (chain != NULL) {
+        mbedtls_x509_crt_free(chain);
+        mbedtls_free(chain);
     }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
-void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl,
-                            const mbedtls_ssl_ciphersuite_t *ciphersuite_info )
+void mbedtls_ssl_optimize_checksum(mbedtls_ssl_context *ssl,
+                                   const mbedtls_ssl_ciphersuite_t *ciphersuite_info)
 {
     ((void) ciphersuite_info);
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
+    if (ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3) {
         ssl->handshake->update_checksum = ssl_update_checksum_md5sha1;
-    else
+    } else
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-    if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
+    if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) {
         ssl->handshake->update_checksum = ssl_update_checksum_sha384;
-    else
+    } else
 #endif
 #if defined(MBEDTLS_SHA256_C)
-    if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 )
+    if (ciphersuite_info->mac != MBEDTLS_MD_SHA384) {
         ssl->handshake->update_checksum = ssl_update_checksum_sha256;
-    else
+    } else
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
         return;
     }
 }
 
-void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl)
 {
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_starts_ret( &ssl->handshake->fin_md5  );
-    mbedtls_sha1_starts_ret( &ssl->handshake->fin_sha1 );
+    mbedtls_md5_starts_ret(&ssl->handshake->fin_md5);
+    mbedtls_sha1_starts_ret(&ssl->handshake->fin_sha1);
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &ssl->handshake->fin_sha256_psa );
-    psa_hash_setup( &ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256 );
+    psa_hash_abort(&ssl->handshake->fin_sha256_psa);
+    psa_hash_setup(&ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256);
 #else
-    mbedtls_sha256_starts_ret( &ssl->handshake->fin_sha256, 0 );
+    mbedtls_sha256_starts_ret(&ssl->handshake->fin_sha256, 0);
 #endif
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &ssl->handshake->fin_sha384_psa );
-    psa_hash_setup( &ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384 );
+    psa_hash_abort(&ssl->handshake->fin_sha384_psa);
+    psa_hash_setup(&ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384);
 #else
-    mbedtls_sha512_starts_ret( &ssl->handshake->fin_sha512, 1 );
+    mbedtls_sha512_starts_ret(&ssl->handshake->fin_sha512, 1);
 #endif
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 }
 
-static void ssl_update_checksum_start( mbedtls_ssl_context *ssl,
-                                       const unsigned char *buf, size_t len )
+static void ssl_update_checksum_start(mbedtls_ssl_context *ssl,
+                                      const unsigned char *buf, size_t len)
 {
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
-    mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
+    mbedtls_md5_update_ret(&ssl->handshake->fin_md5, buf, len);
+    mbedtls_sha1_update_ret(&ssl->handshake->fin_sha1, buf, len);
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len );
+    psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len);
 #else
-    mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
+    mbedtls_sha256_update_ret(&ssl->handshake->fin_sha256, buf, len);
 #endif
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len );
+    psa_hash_update(&ssl->handshake->fin_sha384_psa, buf, len);
 #else
-    mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
+    mbedtls_sha512_update_ret(&ssl->handshake->fin_sha512, buf, len);
 #endif
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
@@ -3098,35 +3001,35 @@
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf, size_t len )
+static void ssl_update_checksum_md5sha1(mbedtls_ssl_context *ssl,
+                                        const unsigned char *buf, size_t len)
 {
-     mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
-    mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
+    mbedtls_md5_update_ret(&ssl->handshake->fin_md5, buf, len);
+    mbedtls_sha1_update_ret(&ssl->handshake->fin_sha1, buf, len);
 }
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
-static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl,
-                                        const unsigned char *buf, size_t len )
+static void ssl_update_checksum_sha256(mbedtls_ssl_context *ssl,
+                                       const unsigned char *buf, size_t len)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len );
+    psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len);
 #else
-    mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
+    mbedtls_sha256_update_ret(&ssl->handshake->fin_sha256, buf, len);
 #endif
 }
 #endif
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl,
-                                        const unsigned char *buf, size_t len )
+static void ssl_update_checksum_sha384(mbedtls_ssl_context *ssl,
+                                       const unsigned char *buf, size_t len)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len );
+    psa_hash_update(&ssl->handshake->fin_sha384_psa, buf, len);
 #else
-    mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
+    mbedtls_sha512_update_ret(&ssl->handshake->fin_sha512, buf, len);
 #endif
 }
 #endif
@@ -3134,7 +3037,7 @@
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
 static void ssl_calc_finished_ssl(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
+    mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
     const char *sender;
     mbedtls_md5_context  md5;
@@ -3145,16 +3048,17 @@
     unsigned char sha1sum[20];
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
+    if (!session) {
         session = ssl->session;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished ssl" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished ssl"));
 
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
+    mbedtls_md5_init(&md5);
+    mbedtls_sha1_init(&sha1);
 
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
+    mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5);
+    mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1);
 
     /*
      * SSLv3:
@@ -3166,60 +3070,60 @@
      */
 
 #if !defined(MBEDTLS_MD5_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished  md5 state", (unsigned char *)
-                    md5.state, sizeof(  md5.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished  md5 state", (unsigned char *)
+                          md5.state, sizeof(md5.state));
 #endif
 
 #if !defined(MBEDTLS_SHA1_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
-                   sha1.state, sizeof( sha1.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha1 state", (unsigned char *)
+                          sha1.state, sizeof(sha1.state));
 #endif
 
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT"
+    sender = (from == MBEDTLS_SSL_IS_CLIENT) ? "CLNT"
                                        : "SRVR";
 
-    memset( padbuf, 0x36, 48 );
+    memset(padbuf, 0x36, 48);
 
-    mbedtls_md5_update_ret( &md5, (const unsigned char *) sender, 4 );
-    mbedtls_md5_update_ret( &md5, session->master, 48 );
-    mbedtls_md5_update_ret( &md5, padbuf, 48 );
-    mbedtls_md5_finish_ret( &md5, md5sum );
+    mbedtls_md5_update_ret(&md5, (const unsigned char *) sender, 4);
+    mbedtls_md5_update_ret(&md5, session->master, 48);
+    mbedtls_md5_update_ret(&md5, padbuf, 48);
+    mbedtls_md5_finish_ret(&md5, md5sum);
 
-    mbedtls_sha1_update_ret( &sha1, (const unsigned char *) sender, 4 );
-    mbedtls_sha1_update_ret( &sha1, session->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, padbuf, 40 );
-    mbedtls_sha1_finish_ret( &sha1, sha1sum );
+    mbedtls_sha1_update_ret(&sha1, (const unsigned char *) sender, 4);
+    mbedtls_sha1_update_ret(&sha1, session->master, 48);
+    mbedtls_sha1_update_ret(&sha1, padbuf, 40);
+    mbedtls_sha1_finish_ret(&sha1, sha1sum);
 
-    memset( padbuf, 0x5C, 48 );
+    memset(padbuf, 0x5C, 48);
 
-    mbedtls_md5_starts_ret( &md5 );
-    mbedtls_md5_update_ret( &md5, session->master, 48 );
-    mbedtls_md5_update_ret( &md5, padbuf, 48 );
-    mbedtls_md5_update_ret( &md5, md5sum, 16 );
-    mbedtls_md5_finish_ret( &md5, buf );
+    mbedtls_md5_starts_ret(&md5);
+    mbedtls_md5_update_ret(&md5, session->master, 48);
+    mbedtls_md5_update_ret(&md5, padbuf, 48);
+    mbedtls_md5_update_ret(&md5, md5sum, 16);
+    mbedtls_md5_finish_ret(&md5, buf);
 
-    mbedtls_sha1_starts_ret( &sha1 );
-    mbedtls_sha1_update_ret( &sha1, session->master, 48 );
-    mbedtls_sha1_update_ret( &sha1, padbuf , 40 );
-    mbedtls_sha1_update_ret( &sha1, sha1sum, 20 );
-    mbedtls_sha1_finish_ret( &sha1, buf + 16 );
+    mbedtls_sha1_starts_ret(&sha1);
+    mbedtls_sha1_update_ret(&sha1, session->master, 48);
+    mbedtls_sha1_update_ret(&sha1, padbuf, 40);
+    mbedtls_sha1_update_ret(&sha1, sha1sum, 20);
+    mbedtls_sha1_finish_ret(&sha1, buf + 16);
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, 36);
 
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
+    mbedtls_md5_free(&md5);
+    mbedtls_sha1_free(&sha1);
 
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
-    mbedtls_platform_zeroize(  md5sum, sizeof(  md5sum ) );
-    mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
+    mbedtls_platform_zeroize(padbuf, sizeof(padbuf));
+    mbedtls_platform_zeroize(md5sum, sizeof(md5sum));
+    mbedtls_platform_zeroize(sha1sum, sizeof(sha1sum));
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc  finished"));
 }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
 static void ssl_calc_finished_tls(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
+    mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
     int len = 12;
     const char *sender;
@@ -3228,16 +3132,17 @@
     unsigned char padbuf[36];
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
+    if (!session) {
         session = ssl->session;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished tls"));
 
-    mbedtls_md5_init( &md5 );
-    mbedtls_sha1_init( &sha1 );
+    mbedtls_md5_init(&md5);
+    mbedtls_sha1_init(&sha1);
 
-    mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
-    mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
+    mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5);
+    mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1);
 
     /*
      * TLSv1:
@@ -3246,40 +3151,40 @@
      */
 
 #if !defined(MBEDTLS_MD5_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished  md5 state", (unsigned char *)
-                    md5.state, sizeof(  md5.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished  md5 state", (unsigned char *)
+                          md5.state, sizeof(md5.state));
 #endif
 
 #if !defined(MBEDTLS_SHA1_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
-                   sha1.state, sizeof( sha1.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha1 state", (unsigned char *)
+                          sha1.state, sizeof(sha1.state));
 #endif
 
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
+    sender = (from == MBEDTLS_SSL_IS_CLIENT)
              ? "client finished"
              : "server finished";
 
-    mbedtls_md5_finish_ret(  &md5, padbuf );
-    mbedtls_sha1_finish_ret( &sha1, padbuf + 16 );
+    mbedtls_md5_finish_ret(&md5, padbuf);
+    mbedtls_sha1_finish_ret(&sha1, padbuf + 16);
 
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 36, buf, len );
+    ssl->handshake->tls_prf(session->master, 48, sender,
+                            padbuf, 36, buf, len);
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len);
 
-    mbedtls_md5_free(  &md5  );
-    mbedtls_sha1_free( &sha1 );
+    mbedtls_md5_free(&md5);
+    mbedtls_sha1_free(&sha1);
 
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
+    mbedtls_platform_zeroize(padbuf, sizeof(padbuf));
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc  finished"));
 }
 #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
 static void ssl_calc_finished_tls_sha256(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
+    mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
     int len = 12;
     const char *sender;
@@ -3293,39 +3198,38 @@
 #endif
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
+    if (!session) {
         session = ssl->session;
+    }
 
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
+    sender = (from == MBEDTLS_SSL_IS_CLIENT)
              ? "client finished"
              : "server finished";
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     sha256_psa = psa_hash_operation_init();
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha256" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc PSA finished tls sha256"));
 
-    status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
+    status = psa_hash_clone(&ssl->handshake->fin_sha256_psa, &sha256_psa);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed"));
         return;
     }
 
-    status = psa_hash_finish( &sha256_psa, padbuf, sizeof( padbuf ), &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
+    status = psa_hash_finish(&sha256_psa, padbuf, sizeof(padbuf), &hash_size);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed"));
         return;
     }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 32 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 32);
 #else
 
-    mbedtls_sha256_init( &sha256 );
+    mbedtls_sha256_init(&sha256);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls sha256" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished tls sha256"));
 
-    mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
+    mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256);
 
     /*
      * TLSv1.2:
@@ -3334,29 +3238,29 @@
      */
 
 #if !defined(MBEDTLS_SHA256_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *)
-                   sha256.state, sizeof( sha256.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha2 state", (unsigned char *)
+                          sha256.state, sizeof(sha256.state));
 #endif
 
-    mbedtls_sha256_finish_ret( &sha256, padbuf );
-    mbedtls_sha256_free( &sha256 );
+    mbedtls_sha256_finish_ret(&sha256, padbuf);
+    mbedtls_sha256_free(&sha256);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 32, buf, len );
+    ssl->handshake->tls_prf(session->master, 48, sender,
+                            padbuf, 32, buf, len);
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len);
 
-    mbedtls_platform_zeroize(  padbuf, sizeof(  padbuf ) );
+    mbedtls_platform_zeroize(padbuf, sizeof(padbuf));
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc  finished"));
 }
 #endif /* MBEDTLS_SHA256_C */
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 
 static void ssl_calc_finished_tls_sha384(
-                mbedtls_ssl_context *ssl, unsigned char *buf, int from )
+    mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
     int len = 12;
     const char *sender;
@@ -3370,38 +3274,37 @@
 #endif
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
-    if( !session )
+    if (!session) {
         session = ssl->session;
+    }
 
-    sender = ( from == MBEDTLS_SSL_IS_CLIENT )
+    sender = (from == MBEDTLS_SSL_IS_CLIENT)
                 ? "client finished"
                 : "server finished";
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     sha384_psa = psa_hash_operation_init();
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha384" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc PSA finished tls sha384"));
 
-    status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) );
+    status = psa_hash_clone(&ssl->handshake->fin_sha384_psa, &sha384_psa);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed"));
         return;
     }
 
-    status = psa_hash_finish( &sha384_psa, padbuf, sizeof( padbuf ), &hash_size );
-    if( status != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) );
+    status = psa_hash_finish(&sha384_psa, padbuf, sizeof(padbuf), &hash_size);
+    if (status != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed"));
         return;
     }
-    MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 48 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 48);
 #else
-    mbedtls_sha512_init( &sha512 );
+    mbedtls_sha512_init(&sha512);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc  finished tls sha384" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished tls sha384"));
 
-    mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
+    mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha512);
 
     /*
      * TLSv1.2:
@@ -3410,8 +3313,8 @@
      */
 
 #if !defined(MBEDTLS_SHA512_ALT)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *)
-                   sha512.state, sizeof( sha512.state ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha512 state", (unsigned char *)
+                          sha512.state, sizeof(sha512.state));
 #endif
     /* mbedtls_sha512_finish_ret's output parameter is declared as a
      * 64-byte buffer, but since we're using SHA-384, we know that the
@@ -3422,60 +3325,58 @@
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wstringop-overflow"
 #endif
-    mbedtls_sha512_finish_ret( &sha512, padbuf );
+    mbedtls_sha512_finish_ret(&sha512, padbuf);
 #if defined(__GNUC__) && __GNUC__ >= 11
 #pragma GCC diagnostic pop
 #endif
 
-    mbedtls_sha512_free( &sha512 );
+    mbedtls_sha512_free(&sha512);
 #endif
 
-    ssl->handshake->tls_prf( session->master, 48, sender,
-                             padbuf, 48, buf, len );
+    ssl->handshake->tls_prf(session->master, 48, sender,
+                            padbuf, 48, buf, len);
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len);
 
-    mbedtls_platform_zeroize(  padbuf, sizeof( padbuf ) );
+    mbedtls_platform_zeroize(padbuf, sizeof(padbuf));
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc  finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc  finished"));
 }
 #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-void mbedtls_ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_handshake_wrapup_free_hs_transform(mbedtls_ssl_context *ssl)
 {
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("=> handshake wrapup: final free"));
 
     /*
      * Free our handshake params
      */
-    mbedtls_ssl_handshake_free( ssl );
-    mbedtls_free( ssl->handshake );
+    mbedtls_ssl_handshake_free(ssl);
+    mbedtls_free(ssl->handshake);
     ssl->handshake = NULL;
 
     /*
      * Free the previous transform and switch in the current one
      */
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
+    if (ssl->transform) {
+        mbedtls_ssl_transform_free(ssl->transform);
+        mbedtls_free(ssl->transform);
     }
     ssl->transform = ssl->transform_negotiate;
     ssl->transform_negotiate = NULL;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("<= handshake wrapup: final free"));
 }
 
-void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_handshake_wrapup(mbedtls_ssl_context *ssl)
 {
     int resume = ssl->handshake->resume;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("=> handshake wrapup"));
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-    {
+    if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) {
         ssl->renego_status =  MBEDTLS_SSL_RENEGOTIATION_DONE;
         ssl->renego_records_seen = 0;
     }
@@ -3484,16 +3385,15 @@
     /*
      * Free the previous session and switch in the current one
      */
-    if( ssl->session )
-    {
+    if (ssl->session) {
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
         /* RFC 7366 3.1: keep the EtM state */
         ssl->session_negotiate->encrypt_then_mac =
-                  ssl->session->encrypt_then_mac;
+            ssl->session->encrypt_then_mac;
 #endif
 
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
+        mbedtls_ssl_session_free(ssl->session);
+        mbedtls_free(ssl->session);
     }
     ssl->session = ssl->session_negotiate;
     ssl->session_negotiate = NULL;
@@ -3501,43 +3401,41 @@
     /*
      * Add cache entry
      */
-    if( ssl->conf->f_set_cache != NULL &&
+    if (ssl->conf->f_set_cache != NULL &&
         ssl->session->id_len != 0 &&
-        resume == 0 )
-    {
-        if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 )
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) );
+        resume == 0) {
+        if (ssl->conf->f_set_cache(ssl->conf->p_cache, ssl->session) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("cache did not store session"));
+        }
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->flight != NULL )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        ssl->handshake->flight != NULL) {
         /* Cancel handshake timer */
-        mbedtls_ssl_set_timer( ssl, 0 );
+        mbedtls_ssl_set_timer(ssl, 0);
 
         /* Keep last flight around in case we need to resend it:
          * we need the handshake and transform structures for that */
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) );
-    }
-    else
+        MBEDTLS_SSL_DEBUG_MSG(3, ("skip freeing handshake and transform"));
+    } else
 #endif
-        mbedtls_ssl_handshake_wrapup_free_hs_transform( ssl );
+    mbedtls_ssl_handshake_wrapup_free_hs_transform(ssl);
 
     ssl->state++;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("<= handshake wrapup"));
 }
 
-int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_write_finished(mbedtls_ssl_context *ssl)
 {
     int ret, hash_len;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write finished"));
 
-    mbedtls_ssl_update_out_pointers( ssl, ssl->transform_negotiate );
+    mbedtls_ssl_update_out_pointers(ssl, ssl->transform_negotiate);
 
-    ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint );
+    ssl->handshake->calc_finished(ssl, ssl->out_msg + 4, ssl->conf->endpoint);
 
     /*
      * RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites
@@ -3545,11 +3443,11 @@
      * ciphersuite does this (and this is unlikely to change as activity has
      * moved to TLS 1.3 now) so we can keep the hardcoded 12 here.
      */
-    hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12;
+    hash_len = (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) ? 36 : 12;
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     ssl->verify_data_len = hash_len;
-    memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len );
+    memcpy(ssl->own_verify_data, ssl->out_msg + 4, hash_len);
 #endif
 
     ssl->out_msglen  = 4 + hash_len;
@@ -3560,91 +3458,88 @@
      * In case of session resuming, invert the client and server
      * ChangeCipherSpec messages order.
      */
-    if( ssl->handshake->resume != 0 )
-    {
+    if (ssl->handshake->resume != 0) {
 #if defined(MBEDTLS_SSL_CLI_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
             ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
+        }
 #endif
 #if defined(MBEDTLS_SSL_SRV_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
             ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
+        }
 #endif
-    }
-    else
+    } else {
         ssl->state++;
+    }
 
     /*
      * Switch to our negotiated transform and session parameters for outbound
      * data.
      */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("switching to new transform spec for outbound data"));
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         unsigned char i;
 
         /* Remember current epoch settings for resending */
         ssl->handshake->alt_transform_out = ssl->transform_out;
-        memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8 );
+        memcpy(ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8);
 
         /* Set sequence_number to zero */
-        memset( ssl->cur_out_ctr + 2, 0, 6 );
+        memset(ssl->cur_out_ctr + 2, 0, 6);
 
         /* Increment epoch */
-        for( i = 2; i > 0; i-- )
-            if( ++ssl->cur_out_ctr[i - 1] != 0 )
+        for (i = 2; i > 0; i--) {
+            if (++ssl->cur_out_ctr[i - 1] != 0) {
                 break;
+            }
+        }
 
         /* The loop goes to its end iff the counter is wrapping */
-        if( i == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
+        if (i == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("DTLS epoch would wrap"));
+            return MBEDTLS_ERR_SSL_COUNTER_WRAPPING;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
-    memset( ssl->cur_out_ctr, 0, 8 );
+    memset(ssl->cur_out_ctr, 0, 8);
 
     ssl->transform_out = ssl->transform_negotiate;
     ssl->session_out = ssl->session_negotiate;
 
 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_activate != NULL )
-    {
-        if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    if (mbedtls_ssl_hw_record_activate != NULL) {
+        if ((ret = mbedtls_ssl_hw_record_activate(ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_activate", ret);
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
         }
     }
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_send_flight_completed( ssl );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        mbedtls_ssl_send_flight_completed(ssl);
+    }
 #endif
 
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret);
+        return ret;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        (ret = mbedtls_ssl_flight_transmit(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flight_transmit", ret);
+        return ret;
     }
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write finished"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
@@ -3653,118 +3548,116 @@
 #define SSL_MAX_HASH_LEN 12
 #endif
 
-int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_parse_finished(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned int hash_len;
     unsigned char buf[SSL_MAX_HASH_LEN];
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse finished"));
 
     /* There is currently no ciphersuite using another length with TLS 1.2 */
 #if defined(MBEDTLS_SSL_PROTO_SSL3)
-    if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
+    if (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) {
         hash_len = 36;
-    else
+    } else
 #endif
-        hash_len = 12;
+    hash_len = 12;
 
-    ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 );
+    ssl->handshake->calc_finished(ssl, buf, ssl->conf->endpoint ^ 1);
 
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
+    if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret);
         goto exit;
     }
 
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
+    if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE);
         ret = MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
         goto exit;
     }
 
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED ||
-        ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
+    if (ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED ||
+        ssl->in_hslen  != mbedtls_ssl_hs_hdr_len(ssl) + hash_len) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
         ret = MBEDTLS_ERR_SSL_BAD_HS_FINISHED;
         goto exit;
     }
 
-    if( mbedtls_ct_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ),
-                      buf, hash_len ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
+    if (mbedtls_ct_memcmp(ssl->in_msg + mbedtls_ssl_hs_hdr_len(ssl),
+                          buf, hash_len) != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR);
         ret = MBEDTLS_ERR_SSL_BAD_HS_FINISHED;
         goto exit;
     }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     ssl->verify_data_len = hash_len;
-    memcpy( ssl->peer_verify_data, buf, hash_len );
+    memcpy(ssl->peer_verify_data, buf, hash_len);
 #endif
 
-    if( ssl->handshake->resume != 0 )
-    {
+    if (ssl->handshake->resume != 0) {
 #if defined(MBEDTLS_SSL_CLI_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
             ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
+        }
 #endif
 #if defined(MBEDTLS_SSL_SRV_C)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
             ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
+        }
 #endif
-    }
-    else
+    } else {
         ssl->state++;
+    }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_recv_flight_completed( ssl );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        mbedtls_ssl_recv_flight_completed(ssl);
+    }
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse finished"));
 
 exit:
-    mbedtls_platform_zeroize( buf, hash_len );
-    return( ret );
+    mbedtls_platform_zeroize(buf, hash_len);
+    return ret;
 }
 
-static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake )
+static void ssl_handshake_params_init(mbedtls_ssl_handshake_params *handshake)
 {
-    memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) );
+    memset(handshake, 0, sizeof(mbedtls_ssl_handshake_params));
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-     mbedtls_md5_init(   &handshake->fin_md5  );
-    mbedtls_sha1_init(   &handshake->fin_sha1 );
-     mbedtls_md5_starts_ret( &handshake->fin_md5  );
-    mbedtls_sha1_starts_ret( &handshake->fin_sha1 );
+    mbedtls_md5_init(&handshake->fin_md5);
+    mbedtls_sha1_init(&handshake->fin_sha1);
+    mbedtls_md5_starts_ret(&handshake->fin_md5);
+    mbedtls_sha1_starts_ret(&handshake->fin_sha1);
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     handshake->fin_sha256_psa = psa_hash_operation_init();
-    psa_hash_setup( &handshake->fin_sha256_psa, PSA_ALG_SHA_256 );
+    psa_hash_setup(&handshake->fin_sha256_psa, PSA_ALG_SHA_256);
 #else
-    mbedtls_sha256_init(   &handshake->fin_sha256    );
-    mbedtls_sha256_starts_ret( &handshake->fin_sha256, 0 );
+    mbedtls_sha256_init(&handshake->fin_sha256);
+    mbedtls_sha256_starts_ret(&handshake->fin_sha256, 0);
 #endif
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     handshake->fin_sha384_psa = psa_hash_operation_init();
-    psa_hash_setup( &handshake->fin_sha384_psa, PSA_ALG_SHA_384 );
+    psa_hash_setup(&handshake->fin_sha384_psa, PSA_ALG_SHA_384);
 #else
-    mbedtls_sha512_init(   &handshake->fin_sha512    );
-    mbedtls_sha512_starts_ret( &handshake->fin_sha512, 1 );
+    mbedtls_sha512_init(&handshake->fin_sha512);
+    mbedtls_sha512_starts_ret(&handshake->fin_sha512, 1);
 #endif
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
@@ -3773,17 +3666,17 @@
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
     defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
-    mbedtls_ssl_sig_hash_set_init( &handshake->hash_algs );
+    mbedtls_ssl_sig_hash_set_init(&handshake->hash_algs);
 #endif
 
 #if defined(MBEDTLS_DHM_C)
-    mbedtls_dhm_init( &handshake->dhm_ctx );
+    mbedtls_dhm_init(&handshake->dhm_ctx);
 #endif
 #if defined(MBEDTLS_ECDH_C)
-    mbedtls_ecdh_init( &handshake->ecdh_ctx );
+    mbedtls_ecdh_init(&handshake->ecdh_ctx);
 #endif
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    mbedtls_ecjpake_init( &handshake->ecjpake_ctx );
+    mbedtls_ecjpake_init(&handshake->ecjpake_ctx);
 #if defined(MBEDTLS_SSL_CLI_C)
     handshake->ecjpake_cache = NULL;
     handshake->ecjpake_cache_len = 0;
@@ -3791,7 +3684,7 @@
 #endif
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    mbedtls_x509_crt_restart_init( &handshake->ecrs_ctx );
+    mbedtls_x509_crt_restart_init(&handshake->ecrs_ctx);
 #endif
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
@@ -3800,110 +3693,109 @@
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && \
     !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_pk_init( &handshake->peer_pubkey );
+    mbedtls_pk_init(&handshake->peer_pubkey);
 #endif
 }
 
-void mbedtls_ssl_transform_init( mbedtls_ssl_transform *transform )
+void mbedtls_ssl_transform_init(mbedtls_ssl_transform *transform)
 {
-    memset( transform, 0, sizeof(mbedtls_ssl_transform) );
+    memset(transform, 0, sizeof(mbedtls_ssl_transform));
 
-    mbedtls_cipher_init( &transform->cipher_ctx_enc );
-    mbedtls_cipher_init( &transform->cipher_ctx_dec );
+    mbedtls_cipher_init(&transform->cipher_ctx_enc);
+    mbedtls_cipher_init(&transform->cipher_ctx_dec);
 
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
-    mbedtls_md_init( &transform->md_ctx_enc );
-    mbedtls_md_init( &transform->md_ctx_dec );
+    mbedtls_md_init(&transform->md_ctx_enc);
+    mbedtls_md_init(&transform->md_ctx_dec);
 #endif
 }
 
-void mbedtls_ssl_session_init( mbedtls_ssl_session *session )
+void mbedtls_ssl_session_init(mbedtls_ssl_session *session)
 {
-    memset( session, 0, sizeof(mbedtls_ssl_session) );
+    memset(session, 0, sizeof(mbedtls_ssl_session));
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_handshake_init( mbedtls_ssl_context *ssl )
+static int ssl_handshake_init(mbedtls_ssl_context *ssl)
 {
     /* Clear old handshake information if present */
-    if( ssl->transform_negotiate )
-        mbedtls_ssl_transform_free( ssl->transform_negotiate );
-    if( ssl->session_negotiate )
-        mbedtls_ssl_session_free( ssl->session_negotiate );
-    if( ssl->handshake )
-        mbedtls_ssl_handshake_free( ssl );
+    if (ssl->transform_negotiate) {
+        mbedtls_ssl_transform_free(ssl->transform_negotiate);
+    }
+    if (ssl->session_negotiate) {
+        mbedtls_ssl_session_free(ssl->session_negotiate);
+    }
+    if (ssl->handshake) {
+        mbedtls_ssl_handshake_free(ssl);
+    }
 
     /*
      * Either the pointers are now NULL or cleared properly and can be freed.
      * Now allocate missing structures.
      */
-    if( ssl->transform_negotiate == NULL )
-    {
-        ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) );
+    if (ssl->transform_negotiate == NULL) {
+        ssl->transform_negotiate = mbedtls_calloc(1, sizeof(mbedtls_ssl_transform));
     }
 
-    if( ssl->session_negotiate == NULL )
-    {
-        ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) );
+    if (ssl->session_negotiate == NULL) {
+        ssl->session_negotiate = mbedtls_calloc(1, sizeof(mbedtls_ssl_session));
     }
 
-    if( ssl->handshake == NULL )
-    {
-        ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) );
+    if (ssl->handshake == NULL) {
+        ssl->handshake = mbedtls_calloc(1, sizeof(mbedtls_ssl_handshake_params));
     }
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     /* If the buffers are too small - reallocate */
 
-    handle_buffer_resizing( ssl, 0, MBEDTLS_SSL_IN_BUFFER_LEN,
-                                    MBEDTLS_SSL_OUT_BUFFER_LEN );
+    handle_buffer_resizing(ssl, 0, MBEDTLS_SSL_IN_BUFFER_LEN,
+                           MBEDTLS_SSL_OUT_BUFFER_LEN);
 #endif
 
     /* All pointers should exist and can be directly freed without issue */
-    if( ssl->handshake == NULL ||
+    if (ssl->handshake == NULL ||
         ssl->transform_negotiate == NULL ||
-        ssl->session_negotiate == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) );
+        ssl->session_negotiate == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc() of ssl sub-contexts failed"));
 
-        mbedtls_free( ssl->handshake );
-        mbedtls_free( ssl->transform_negotiate );
-        mbedtls_free( ssl->session_negotiate );
+        mbedtls_free(ssl->handshake);
+        mbedtls_free(ssl->transform_negotiate);
+        mbedtls_free(ssl->session_negotiate);
 
         ssl->handshake = NULL;
         ssl->transform_negotiate = NULL;
         ssl->session_negotiate = NULL;
 
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
 
     /* Initialize structures */
-    mbedtls_ssl_session_init( ssl->session_negotiate );
-    mbedtls_ssl_transform_init( ssl->transform_negotiate );
-    ssl_handshake_params_init( ssl->handshake );
+    mbedtls_ssl_session_init(ssl->session_negotiate);
+    mbedtls_ssl_transform_init(ssl->transform_negotiate);
+    ssl_handshake_params_init(ssl->handshake);
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         ssl->handshake->alt_transform_out = ssl->transform_out;
 
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
             ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
-        else
+        } else {
             ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
+        }
 
-        mbedtls_ssl_set_timer( ssl, 0 );
+        mbedtls_ssl_set_timer(ssl, 0);
     }
 #endif
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
 /* Dummy cookie callbacks for defaults */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_cookie_write_dummy( void *ctx,
-                      unsigned char **p, unsigned char *end,
-                      const unsigned char *cli_id, size_t cli_id_len )
+static int ssl_cookie_write_dummy(void *ctx,
+                                  unsigned char **p, unsigned char *end,
+                                  const unsigned char *cli_id, size_t cli_id_len)
 {
     ((void) ctx);
     ((void) p);
@@ -3911,13 +3803,13 @@
     ((void) cli_id);
     ((void) cli_id_len);
 
-    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_cookie_check_dummy( void *ctx,
-                      const unsigned char *cookie, size_t cookie_len,
-                      const unsigned char *cli_id, size_t cli_id_len )
+static int ssl_cookie_check_dummy(void *ctx,
+                                  const unsigned char *cookie, size_t cookie_len,
+                                  const unsigned char *cli_id, size_t cli_id_len)
 {
     ((void) ctx);
     ((void) cookie);
@@ -3925,24 +3817,24 @@
     ((void) cli_id);
     ((void) cli_id_len);
 
-    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
 }
 #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
 
 /*
  * Initialize an SSL context
  */
-void mbedtls_ssl_init( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_init(mbedtls_ssl_context *ssl)
 {
-    memset( ssl, 0, sizeof( mbedtls_ssl_context ) );
+    memset(ssl, 0, sizeof(mbedtls_ssl_context));
 }
 
 /*
  * Setup an SSL context
  */
 
-int mbedtls_ssl_setup( mbedtls_ssl_context *ssl,
-                       const mbedtls_ssl_config *conf )
+int mbedtls_ssl_setup(mbedtls_ssl_context *ssl,
+                      const mbedtls_ssl_config *conf)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN;
@@ -3960,10 +3852,9 @@
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     ssl->in_buf_len = in_buf_len;
 #endif
-    ssl->in_buf = mbedtls_calloc( 1, in_buf_len );
-    if( ssl->in_buf == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", in_buf_len ) );
+    ssl->in_buf = mbedtls_calloc(1, in_buf_len);
+    if (ssl->in_buf == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", in_buf_len));
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto error;
     }
@@ -3971,28 +3862,28 @@
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     ssl->out_buf_len = out_buf_len;
 #endif
-    ssl->out_buf = mbedtls_calloc( 1, out_buf_len );
-    if( ssl->out_buf == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", out_buf_len ) );
+    ssl->out_buf = mbedtls_calloc(1, out_buf_len);
+    if (ssl->out_buf == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", out_buf_len));
         ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
         goto error;
     }
 
-    mbedtls_ssl_reset_in_out_pointers( ssl );
+    mbedtls_ssl_reset_in_out_pointers(ssl);
 
 #if defined(MBEDTLS_SSL_DTLS_SRTP)
-    memset( &ssl->dtls_srtp_info, 0, sizeof(ssl->dtls_srtp_info) );
+    memset(&ssl->dtls_srtp_info, 0, sizeof(ssl->dtls_srtp_info));
 #endif
 
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
+    if ((ret = ssl_handshake_init(ssl)) != 0) {
         goto error;
+    }
 
-    return( 0 );
+    return 0;
 
 error:
-    mbedtls_free( ssl->in_buf );
-    mbedtls_free( ssl->out_buf );
+    mbedtls_free(ssl->in_buf);
+    mbedtls_free(ssl->out_buf);
 
     ssl->conf = NULL;
 
@@ -4015,7 +3906,7 @@
     ssl->out_iv = NULL;
     ssl->out_msg = NULL;
 
-    return( ret );
+    return ret;
 }
 
 /*
@@ -4025,7 +3916,7 @@
  * If partial is non-zero, keep data in the input buffer and client ID.
  * (Use when a DTLS client reconnects from the same port.)
  */
-int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
+int mbedtls_ssl_session_reset_int(mbedtls_ssl_context *ssl, int partial)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
@@ -4044,20 +3935,20 @@
     ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
 
     /* Cancel any possibly running timer */
-    mbedtls_ssl_set_timer( ssl, 0 );
+    mbedtls_ssl_set_timer(ssl, 0);
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE;
     ssl->renego_records_seen = 0;
 
     ssl->verify_data_len = 0;
-    memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
-    memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
+    memset(ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN);
+    memset(ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN);
 #endif
     ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION;
 
     ssl->in_offt = NULL;
-    mbedtls_ssl_reset_in_out_pointers( ssl );
+    mbedtls_ssl_reset_in_out_pointers(ssl);
 
     ssl->in_msgtype = 0;
     ssl->in_msglen = 0;
@@ -4066,7 +3957,7 @@
     ssl->in_epoch = 0;
 #endif
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    mbedtls_ssl_dtls_replay_reset( ssl );
+    mbedtls_ssl_dtls_replay_reset(ssl);
 #endif
 
     ssl->in_hslen = 0;
@@ -4078,11 +3969,12 @@
     ssl->out_msglen = 0;
     ssl->out_left = 0;
 #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-    if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED )
+    if (ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED) {
         ssl->split_done = 0;
+    }
 #endif
 
-    memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) );
+    memset(ssl->cur_out_ctr, 0, sizeof(ssl->cur_out_ctr));
 
     ssl->transform_in = NULL;
     ssl->transform_out = NULL;
@@ -4090,42 +3982,38 @@
     ssl->session_in = NULL;
     ssl->session_out = NULL;
 
-    memset( ssl->out_buf, 0, out_buf_len );
+    memset(ssl->out_buf, 0, out_buf_len);
 
     int clear_in_buf = 1;
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
-    if( partial != 0 )
+    if (partial != 0) {
         clear_in_buf = 0;
+    }
 #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
-    if( clear_in_buf )
-    {
+    if (clear_in_buf) {
         ssl->in_left = 0;
-        memset( ssl->in_buf, 0, in_buf_len );
+        memset(ssl->in_buf, 0, in_buf_len);
     }
 
 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_reset != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) );
-        if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret );
-            return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
+    if (mbedtls_ssl_hw_record_reset != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_reset()"));
+        if ((ret = mbedtls_ssl_hw_record_reset(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_reset", ret);
+            return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED;
         }
     }
 #endif
 
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
+    if (ssl->transform) {
+        mbedtls_ssl_transform_free(ssl->transform);
+        mbedtls_free(ssl->transform);
         ssl->transform = NULL;
     }
 
-    if( ssl->session )
-    {
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
+    if (ssl->session) {
+        mbedtls_ssl_session_free(ssl->session);
+        mbedtls_free(ssl->session);
         ssl->session = NULL;
     }
 
@@ -4136,54 +4024,55 @@
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
     int free_cli_id = 1;
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
-    if( partial != 0 )
+    if (partial != 0) {
         free_cli_id = 0;
+    }
 #endif
-    if( free_cli_id )
-    {
-        mbedtls_free( ssl->cli_id );
+    if (free_cli_id) {
+        mbedtls_free(ssl->cli_id);
         ssl->cli_id = NULL;
         ssl->cli_id_len = 0;
     }
 #endif
 
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
-        return( ret );
+    if ((ret = ssl_handshake_init(ssl)) != 0) {
+        return ret;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Reset an initialized and used SSL context for re-use while retaining
  * all application-set variables, function pointers and data.
  */
-int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl)
 {
-    return( mbedtls_ssl_session_reset_int( ssl, 0 ) );
+    return mbedtls_ssl_session_reset_int(ssl, 0);
 }
 
 /*
  * SSL set accessors
  */
-void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint )
+void mbedtls_ssl_conf_endpoint(mbedtls_ssl_config *conf, int endpoint)
 {
     conf->endpoint   = endpoint;
 }
 
-void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport )
+void mbedtls_ssl_conf_transport(mbedtls_ssl_config *conf, int transport)
 {
     conf->transport = transport;
 }
 
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode )
+void mbedtls_ssl_conf_dtls_anti_replay(mbedtls_ssl_config *conf, char mode)
 {
     conf->anti_replay = mode;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit )
+void mbedtls_ssl_conf_dtls_badmac_limit(mbedtls_ssl_config *conf, unsigned limit)
 {
     conf->badmac_limit = limit;
 }
@@ -4191,56 +4080,56 @@
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
-void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl,
-                                       unsigned allow_packing )
+void mbedtls_ssl_set_datagram_packing(mbedtls_ssl_context *ssl,
+                                      unsigned allow_packing)
 {
     ssl->disable_datagram_packing = !allow_packing;
 }
 
-void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf,
-                                         uint32_t min, uint32_t max )
+void mbedtls_ssl_conf_handshake_timeout(mbedtls_ssl_config *conf,
+                                        uint32_t min, uint32_t max)
 {
     conf->hs_timeout_min = min;
     conf->hs_timeout_max = max;
 }
 #endif
 
-void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode )
+void mbedtls_ssl_conf_authmode(mbedtls_ssl_config *conf, int authmode)
 {
     conf->authmode   = authmode;
 }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
+void mbedtls_ssl_conf_verify(mbedtls_ssl_config *conf,
+                             int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
+                             void *p_vrfy)
 {
     conf->f_vrfy      = f_vrfy;
     conf->p_vrfy      = p_vrfy;
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf,
-                  int (*f_rng)(void *, unsigned char *, size_t),
-                  void *p_rng )
+void mbedtls_ssl_conf_rng(mbedtls_ssl_config *conf,
+                          int (*f_rng)(void *, unsigned char *, size_t),
+                          void *p_rng)
 {
     conf->f_rng      = f_rng;
     conf->p_rng      = p_rng;
 }
 
-void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf,
-                  void (*f_dbg)(void *, int, const char *, int, const char *),
-                  void  *p_dbg )
+void mbedtls_ssl_conf_dbg(mbedtls_ssl_config *conf,
+                          void (*f_dbg)(void *, int, const char *, int, const char *),
+                          void  *p_dbg)
 {
     conf->f_dbg      = f_dbg;
     conf->p_dbg      = p_dbg;
 }
 
-void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl,
-        void *p_bio,
-        mbedtls_ssl_send_t *f_send,
-        mbedtls_ssl_recv_t *f_recv,
-        mbedtls_ssl_recv_timeout_t *f_recv_timeout )
+void mbedtls_ssl_set_bio(mbedtls_ssl_context *ssl,
+                         void *p_bio,
+                         mbedtls_ssl_send_t *f_send,
+                         mbedtls_ssl_recv_t *f_recv,
+                         mbedtls_ssl_recv_timeout_t *f_recv_timeout)
 {
     ssl->p_bio          = p_bio;
     ssl->f_send         = f_send;
@@ -4249,35 +4138,35 @@
 }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu )
+void mbedtls_ssl_set_mtu(mbedtls_ssl_context *ssl, uint16_t mtu)
 {
     ssl->mtu = mtu;
 }
 #endif
 
-void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout )
+void mbedtls_ssl_conf_read_timeout(mbedtls_ssl_config *conf, uint32_t timeout)
 {
     conf->read_timeout   = timeout;
 }
 
-void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl,
-                               void *p_timer,
-                               mbedtls_ssl_set_timer_t *f_set_timer,
-                               mbedtls_ssl_get_timer_t *f_get_timer )
+void mbedtls_ssl_set_timer_cb(mbedtls_ssl_context *ssl,
+                              void *p_timer,
+                              mbedtls_ssl_set_timer_t *f_set_timer,
+                              mbedtls_ssl_get_timer_t *f_get_timer)
 {
     ssl->p_timer        = p_timer;
     ssl->f_set_timer    = f_set_timer;
     ssl->f_get_timer    = f_get_timer;
 
     /* Make sure we start with no timer running */
-    mbedtls_ssl_set_timer( ssl, 0 );
+    mbedtls_ssl_set_timer(ssl, 0);
 }
 
 #if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf,
-        void *p_cache,
-        int (*f_get_cache)(void *, mbedtls_ssl_session *),
-        int (*f_set_cache)(void *, const mbedtls_ssl_session *) )
+void mbedtls_ssl_conf_session_cache(mbedtls_ssl_config *conf,
+                                    void *p_cache,
+                                    int (*f_get_cache)(void *, mbedtls_ssl_session *),
+                                    int (*f_set_cache)(void *, const mbedtls_ssl_session *))
 {
     conf->p_cache = p_cache;
     conf->f_get_cache = f_get_cache;
@@ -4286,30 +4175,30 @@
 #endif /* MBEDTLS_SSL_SRV_C */
 
 #if defined(MBEDTLS_SSL_CLI_C)
-int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session )
+int mbedtls_ssl_set_session(mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ssl == NULL ||
+    if (ssl == NULL ||
         session == NULL ||
         ssl->session_negotiate == NULL ||
-        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    if( ( ret = mbedtls_ssl_session_copy( ssl->session_negotiate,
-                                          session ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_ssl_session_copy(ssl->session_negotiate,
+                                        session)) != 0) {
+        return ret;
+    }
 
     ssl->handshake->resume = 1;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_CLI_C */
 
-void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf,
-                                   const int *ciphersuites )
+void mbedtls_ssl_conf_ciphersuites(mbedtls_ssl_config *conf,
+                                   const int *ciphersuites)
 {
     conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites;
     conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites;
@@ -4317,68 +4206,69 @@
     conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites;
 }
 
-void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf,
-                                       const int *ciphersuites,
-                                       int major, int minor )
+void mbedtls_ssl_conf_ciphersuites_for_version(mbedtls_ssl_config *conf,
+                                               const int *ciphersuites,
+                                               int major, int minor)
 {
-    if( major != MBEDTLS_SSL_MAJOR_VERSION_3 )
+    if (major != MBEDTLS_SSL_MAJOR_VERSION_3) {
         return;
+    }
 
-    if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 )
+    if (minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3) {
         return;
+    }
 
     conf->ciphersuite_list[minor] = ciphersuites;
 }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
-                                    const mbedtls_x509_crt_profile *profile )
+void mbedtls_ssl_conf_cert_profile(mbedtls_ssl_config *conf,
+                                   const mbedtls_x509_crt_profile *profile)
 {
     conf->cert_profile = profile;
 }
 
 /* Append a new keycert entry to a (possibly empty) list */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_append_key_cert( mbedtls_ssl_key_cert **head,
-                                mbedtls_x509_crt *cert,
-                                mbedtls_pk_context *key )
+static int ssl_append_key_cert(mbedtls_ssl_key_cert **head,
+                               mbedtls_x509_crt *cert,
+                               mbedtls_pk_context *key)
 {
     mbedtls_ssl_key_cert *new_cert;
 
-    new_cert = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) );
-    if( new_cert == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    new_cert = mbedtls_calloc(1, sizeof(mbedtls_ssl_key_cert));
+    if (new_cert == NULL) {
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+    }
 
     new_cert->cert = cert;
     new_cert->key  = key;
     new_cert->next = NULL;
 
     /* Update head is the list was null, else add to the end */
-    if( *head == NULL )
-    {
+    if (*head == NULL) {
         *head = new_cert;
-    }
-    else
-    {
+    } else {
         mbedtls_ssl_key_cert *cur = *head;
-        while( cur->next != NULL )
+        while (cur->next != NULL) {
             cur = cur->next;
+        }
         cur->next = new_cert;
     }
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf,
+int mbedtls_ssl_conf_own_cert(mbedtls_ssl_config *conf,
                               mbedtls_x509_crt *own_cert,
-                              mbedtls_pk_context *pk_key )
+                              mbedtls_pk_context *pk_key)
 {
-    return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) );
+    return ssl_append_key_cert(&conf->key_cert, own_cert, pk_key);
 }
 
-void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf,
+void mbedtls_ssl_conf_ca_chain(mbedtls_ssl_config *conf,
                                mbedtls_x509_crt *ca_chain,
-                               mbedtls_x509_crl *ca_crl )
+                               mbedtls_x509_crl *ca_crl)
 {
     conf->ca_chain   = ca_chain;
     conf->ca_crl     = ca_crl;
@@ -4392,9 +4282,9 @@
 }
 
 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
-void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf,
-                             mbedtls_x509_crt_ca_cb_t f_ca_cb,
-                             void *p_ca_cb )
+void mbedtls_ssl_conf_ca_cb(mbedtls_ssl_config *conf,
+                            mbedtls_x509_crt_ca_cb_t f_ca_cb,
+                            void *p_ca_cb)
 {
     conf->f_ca_cb = f_ca_cb;
     conf->p_ca_cb = p_ca_cb;
@@ -4408,33 +4298,33 @@
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl,
-                                 mbedtls_x509_crt *own_cert,
-                                 mbedtls_pk_context *pk_key )
+int mbedtls_ssl_set_hs_own_cert(mbedtls_ssl_context *ssl,
+                                mbedtls_x509_crt *own_cert,
+                                mbedtls_pk_context *pk_key)
 {
-    return( ssl_append_key_cert( &ssl->handshake->sni_key_cert,
-                                 own_cert, pk_key ) );
+    return ssl_append_key_cert(&ssl->handshake->sni_key_cert,
+                               own_cert, pk_key);
 }
 
-void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl,
-                                  mbedtls_x509_crt *ca_chain,
-                                  mbedtls_x509_crl *ca_crl )
+void mbedtls_ssl_set_hs_ca_chain(mbedtls_ssl_context *ssl,
+                                 mbedtls_x509_crt *ca_chain,
+                                 mbedtls_x509_crl *ca_crl)
 {
     ssl->handshake->sni_ca_chain   = ca_chain;
     ssl->handshake->sni_ca_crl     = ca_crl;
 }
 
-void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl,
-                                  int authmode )
+void mbedtls_ssl_set_hs_authmode(mbedtls_ssl_context *ssl,
+                                 int authmode)
 {
     ssl->handshake->sni_authmode = authmode;
 }
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl,
-                     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
-                     void *p_vrfy )
+void mbedtls_ssl_set_verify(mbedtls_ssl_context *ssl,
+                            int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
+                            void *p_vrfy)
 {
     ssl->f_vrfy = f_vrfy;
     ssl->p_vrfy = p_vrfy;
@@ -4445,36 +4335,37 @@
 /*
  * Set EC J-PAKE password for current handshake
  */
-int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl,
-                                         const unsigned char *pw,
-                                         size_t pw_len )
+int mbedtls_ssl_set_hs_ecjpake_password(mbedtls_ssl_context *ssl,
+                                        const unsigned char *pw,
+                                        size_t pw_len)
 {
     mbedtls_ecjpake_role role;
 
-    if( ssl->handshake == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->handshake == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
         role = MBEDTLS_ECJPAKE_SERVER;
-    else
+    } else {
         role = MBEDTLS_ECJPAKE_CLIENT;
+    }
 
-    return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx,
-                                   role,
-                                   MBEDTLS_MD_SHA256,
-                                   MBEDTLS_ECP_DP_SECP256R1,
-                                   pw, pw_len ) );
+    return mbedtls_ecjpake_setup(&ssl->handshake->ecjpake_ctx,
+                                 role,
+                                 MBEDTLS_MD_SHA256,
+                                 MBEDTLS_ECP_DP_SECP256R1,
+                                 pw, pw_len);
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
 
-static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
+static void ssl_conf_remove_psk(mbedtls_ssl_config *conf)
 {
     /* Remove reference to existing PSK, if any. */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ! mbedtls_svc_key_id_is_null( conf->psk_opaque ) )
-    {
+    if (!mbedtls_svc_key_id_is_null(conf->psk_opaque)) {
         /* The maintenance of the PSK key slot is the
          * user's responsibility. */
         conf->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT;
@@ -4485,19 +4376,17 @@
      * configured simultaneously. As a safeguard,
      * though, `else` is omitted here. */
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( conf->psk != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk, conf->psk_len );
+    if (conf->psk != NULL) {
+        mbedtls_platform_zeroize(conf->psk, conf->psk_len);
 
-        mbedtls_free( conf->psk );
+        mbedtls_free(conf->psk);
         conf->psk = NULL;
         conf->psk_len = 0;
     }
 
     /* Remove reference to PSK identity, if any. */
-    if( conf->psk_identity != NULL )
-    {
-        mbedtls_free( conf->psk_identity );
+    if (conf->psk_identity != NULL) {
+        mbedtls_free(conf->psk_identity);
         conf->psk_identity = NULL;
         conf->psk_identity_len = 0;
     }
@@ -4508,136 +4397,144 @@
  * to make a copy of it in the SSL config.
  * On failure, the PSK identity in the config remains unset. */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf,
-                                      unsigned char const *psk_identity,
-                                      size_t psk_identity_len )
+static int ssl_conf_set_psk_identity(mbedtls_ssl_config *conf,
+                                     unsigned char const *psk_identity,
+                                     size_t psk_identity_len)
 {
     /* Identity len will be encoded on two bytes */
-    if( psk_identity               == NULL ||
-        ( psk_identity_len >> 16 ) != 0    ||
-        psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (psk_identity               == NULL ||
+        (psk_identity_len >> 16) != 0    ||
+        psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    conf->psk_identity = mbedtls_calloc( 1, psk_identity_len );
-    if( conf->psk_identity == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    conf->psk_identity = mbedtls_calloc(1, psk_identity_len);
+    if (conf->psk_identity == NULL) {
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+    }
 
     conf->psk_identity_len = psk_identity_len;
-    memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len );
+    memcpy(conf->psk_identity, psk_identity, conf->psk_identity_len);
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
-                const unsigned char *psk, size_t psk_len,
-                const unsigned char *psk_identity, size_t psk_identity_len )
+int mbedtls_ssl_conf_psk(mbedtls_ssl_config *conf,
+                         const unsigned char *psk, size_t psk_len,
+                         const unsigned char *psk_identity, size_t psk_identity_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     /* Remove opaque/raw PSK + PSK Identity */
-    ssl_conf_remove_psk( conf );
+    ssl_conf_remove_psk(conf);
 
     /* Check and set raw PSK */
-    if( psk == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    if( psk_len == 0 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    if( psk_len > MBEDTLS_PSK_MAX_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (psk == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    if (psk_len == 0) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    if (psk_len > MBEDTLS_PSK_MAX_LEN) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((conf->psk = mbedtls_calloc(1, psk_len)) == NULL) {
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+    }
     conf->psk_len = psk_len;
-    memcpy( conf->psk, psk, conf->psk_len );
+    memcpy(conf->psk, psk, conf->psk_len);
 
     /* Check and set PSK Identity */
-    ret = ssl_conf_set_psk_identity( conf, psk_identity, psk_identity_len );
-    if( ret != 0 )
-        ssl_conf_remove_psk( conf );
+    ret = ssl_conf_set_psk_identity(conf, psk_identity, psk_identity_len);
+    if (ret != 0) {
+        ssl_conf_remove_psk(conf);
+    }
 
-    return( ret );
+    return ret;
 }
 
-static void ssl_remove_psk( mbedtls_ssl_context *ssl )
+static void ssl_remove_psk(mbedtls_ssl_context *ssl)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ! mbedtls_svc_key_id_is_null( ssl->handshake->psk_opaque ) )
-    {
+    if (!mbedtls_svc_key_id_is_null(ssl->handshake->psk_opaque)) {
         ssl->handshake->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT;
-    }
-    else
+    } else
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ssl->handshake->psk != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->handshake->psk,
-                                  ssl->handshake->psk_len );
-        mbedtls_free( ssl->handshake->psk );
+    if (ssl->handshake->psk != NULL) {
+        mbedtls_platform_zeroize(ssl->handshake->psk,
+                                 ssl->handshake->psk_len);
+        mbedtls_free(ssl->handshake->psk);
         ssl->handshake->psk_len = 0;
     }
 }
 
-int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl,
-                            const unsigned char *psk, size_t psk_len )
+int mbedtls_ssl_set_hs_psk(mbedtls_ssl_context *ssl,
+                           const unsigned char *psk, size_t psk_len)
 {
-    if( psk == NULL || ssl->handshake == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (psk == NULL || ssl->handshake == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    if( psk_len > MBEDTLS_PSK_MAX_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (psk_len > MBEDTLS_PSK_MAX_LEN) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ssl_remove_psk( ssl );
+    ssl_remove_psk(ssl);
 
-    if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((ssl->handshake->psk = mbedtls_calloc(1, psk_len)) == NULL) {
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+    }
 
     ssl->handshake->psk_len = psk_len;
-    memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len );
+    memcpy(ssl->handshake->psk, psk, ssl->handshake->psk_len);
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf,
-                                 psa_key_id_t psk,
-                                 const unsigned char *psk_identity,
-                                 size_t psk_identity_len )
+int mbedtls_ssl_conf_psk_opaque(mbedtls_ssl_config *conf,
+                                psa_key_id_t psk,
+                                const unsigned char *psk_identity,
+                                size_t psk_identity_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     /* Clear opaque/raw PSK + PSK Identity, if present. */
-    ssl_conf_remove_psk( conf );
+    ssl_conf_remove_psk(conf);
 
     /* Check and set opaque PSK */
-    if( mbedtls_svc_key_id_is_null( psk ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (mbedtls_svc_key_id_is_null(psk)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
     conf->psk_opaque = psk;
 
     /* Check and set PSK Identity */
-    ret = ssl_conf_set_psk_identity( conf, psk_identity,
-                                     psk_identity_len );
-    if( ret != 0 )
-        ssl_conf_remove_psk( conf );
+    ret = ssl_conf_set_psk_identity(conf, psk_identity,
+                                    psk_identity_len);
+    if (ret != 0) {
+        ssl_conf_remove_psk(conf);
+    }
 
-    return( ret );
+    return ret;
 }
 
-int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl,
-                                   psa_key_id_t psk )
+int mbedtls_ssl_set_hs_psk_opaque(mbedtls_ssl_context *ssl,
+                                  psa_key_id_t psk)
 {
-    if( ( mbedtls_svc_key_id_is_null( psk ) ) ||
-        ( ssl->handshake == NULL ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((mbedtls_svc_key_id_is_null(psk)) ||
+        (ssl->handshake == NULL)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ssl_remove_psk( ssl );
+    ssl_remove_psk(ssl);
     ssl->handshake->psk_opaque = psk;
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf,
-                     int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *,
-                     size_t),
-                     void *p_psk )
+void mbedtls_ssl_conf_psk_cb(mbedtls_ssl_config *conf,
+                             int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *,
+                                          size_t),
+                             void *p_psk)
 {
     conf->f_psk = f_psk;
     conf->p_psk = p_psk;
@@ -4647,58 +4544,55 @@
 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G )
+int mbedtls_ssl_conf_dh_param(mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
+    if ((ret = mbedtls_mpi_read_string(&conf->dhm_P, 16, dhm_P)) != 0 ||
+        (ret = mbedtls_mpi_read_string(&conf->dhm_G, 16, dhm_G)) != 0) {
+        mbedtls_mpi_free(&conf->dhm_P);
+        mbedtls_mpi_free(&conf->dhm_G);
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_DEPRECATED_REMOVED */
 
-int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf,
-                                   const unsigned char *dhm_P, size_t P_len,
-                                   const unsigned char *dhm_G, size_t G_len )
+int mbedtls_ssl_conf_dh_param_bin(mbedtls_ssl_config *conf,
+                                  const unsigned char *dhm_P, size_t P_len,
+                                  const unsigned char *dhm_G, size_t G_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_mpi_free( &conf->dhm_P );
-    mbedtls_mpi_free( &conf->dhm_G );
+    mbedtls_mpi_free(&conf->dhm_P);
+    mbedtls_mpi_free(&conf->dhm_G);
 
-    if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
+    if ((ret = mbedtls_mpi_read_binary(&conf->dhm_P, dhm_P, P_len)) != 0 ||
+        (ret = mbedtls_mpi_read_binary(&conf->dhm_G, dhm_G, G_len)) != 0) {
+        mbedtls_mpi_free(&conf->dhm_P);
+        mbedtls_mpi_free(&conf->dhm_G);
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx )
+int mbedtls_ssl_conf_dh_param_ctx(mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_mpi_free( &conf->dhm_P );
-    mbedtls_mpi_free( &conf->dhm_G );
+    mbedtls_mpi_free(&conf->dhm_P);
+    mbedtls_mpi_free(&conf->dhm_G);
 
-    if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 ||
-        ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 )
-    {
-        mbedtls_mpi_free( &conf->dhm_P );
-        mbedtls_mpi_free( &conf->dhm_G );
-        return( ret );
+    if ((ret = mbedtls_mpi_copy(&conf->dhm_P, &dhm_ctx->P)) != 0 ||
+        (ret = mbedtls_mpi_copy(&conf->dhm_G, &dhm_ctx->G)) != 0) {
+        mbedtls_mpi_free(&conf->dhm_P);
+        mbedtls_mpi_free(&conf->dhm_G);
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */
 
@@ -4706,8 +4600,8 @@
 /*
  * Set the minimum length for Diffie-Hellman parameters
  */
-void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf,
-                                      unsigned int bitlen )
+void mbedtls_ssl_conf_dhm_min_bitlen(mbedtls_ssl_config *conf,
+                                     unsigned int bitlen)
 {
     conf->dhm_min_bitlen = bitlen;
 }
@@ -4717,8 +4611,8 @@
 /*
  * Set allowed/preferred hashes for handshake signatures
  */
-void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
-                                  const int *hashes )
+void mbedtls_ssl_conf_sig_hashes(mbedtls_ssl_config *conf,
+                                 const int *hashes)
 {
     conf->sig_hashes = hashes;
 }
@@ -4728,64 +4622,61 @@
 /*
  * Set the allowed elliptic curves
  */
-void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf,
-                             const mbedtls_ecp_group_id *curve_list )
+void mbedtls_ssl_conf_curves(mbedtls_ssl_config *conf,
+                             const mbedtls_ecp_group_id *curve_list)
 {
     conf->curve_list = curve_list;
 }
 #endif /* MBEDTLS_ECP_C */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname )
+int mbedtls_ssl_set_hostname(mbedtls_ssl_context *ssl, const char *hostname)
 {
     /* Initialize to suppress unnecessary compiler warning */
     size_t hostname_len = 0;
 
     /* Check if new hostname is valid before
      * making any change to current one */
-    if( hostname != NULL )
-    {
-        hostname_len = strlen( hostname );
+    if (hostname != NULL) {
+        hostname_len = strlen(hostname);
 
-        if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
     }
 
     /* Now it's clear that we will overwrite the old hostname,
      * so we can free it safely */
 
-    if( ssl->hostname != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
-        mbedtls_free( ssl->hostname );
+    if (ssl->hostname != NULL) {
+        mbedtls_platform_zeroize(ssl->hostname, strlen(ssl->hostname));
+        mbedtls_free(ssl->hostname);
     }
 
     /* Passing NULL as hostname shall clear the old one */
 
-    if( hostname == NULL )
-    {
+    if (hostname == NULL) {
         ssl->hostname = NULL;
-    }
-    else
-    {
-        ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 );
-        if( ssl->hostname == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    } else {
+        ssl->hostname = mbedtls_calloc(1, hostname_len + 1);
+        if (ssl->hostname == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        memcpy( ssl->hostname, hostname, hostname_len );
+        memcpy(ssl->hostname, hostname, hostname_len);
 
         ssl->hostname[hostname_len] = '\0';
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf,
-                  int (*f_sni)(void *, mbedtls_ssl_context *,
-                                const unsigned char *, size_t),
-                  void *p_sni )
+void mbedtls_ssl_conf_sni(mbedtls_ssl_config *conf,
+                          int (*f_sni)(void *, mbedtls_ssl_context *,
+                                       const unsigned char *, size_t),
+                          void *p_sni)
 {
     conf->f_sni = f_sni;
     conf->p_sni = p_sni;
@@ -4793,7 +4684,7 @@
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
 #if defined(MBEDTLS_SSL_ALPN)
-int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos )
+int mbedtls_ssl_conf_alpn_protocols(mbedtls_ssl_config *conf, const char **protos)
 {
     size_t cur_len, tot_len;
     const char **p;
@@ -4804,221 +4695,210 @@
      * We check lengths now rather than later.
      */
     tot_len = 0;
-    for( p = protos; *p != NULL; p++ )
-    {
-        cur_len = strlen( *p );
+    for (p = protos; *p != NULL; p++) {
+        cur_len = strlen(*p);
         tot_len += cur_len;
 
-        if( ( cur_len == 0 ) ||
-            ( cur_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN ) ||
-            ( tot_len > MBEDTLS_SSL_MAX_ALPN_LIST_LEN ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if ((cur_len == 0) ||
+            (cur_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN) ||
+            (tot_len > MBEDTLS_SSL_MAX_ALPN_LIST_LEN)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
     }
 
     conf->alpn_list = protos;
 
-    return( 0 );
+    return 0;
 }
 
-const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl )
+const char *mbedtls_ssl_get_alpn_protocol(const mbedtls_ssl_context *ssl)
 {
-    return( ssl->alpn_chosen );
+    return ssl->alpn_chosen;
 }
 #endif /* MBEDTLS_SSL_ALPN */
 
 #if defined(MBEDTLS_SSL_DTLS_SRTP)
-void mbedtls_ssl_conf_srtp_mki_value_supported( mbedtls_ssl_config *conf,
-                                                int support_mki_value )
+void mbedtls_ssl_conf_srtp_mki_value_supported(mbedtls_ssl_config *conf,
+                                               int support_mki_value)
 {
     conf->dtls_srtp_mki_support = support_mki_value;
 }
 
-int mbedtls_ssl_dtls_srtp_set_mki_value( mbedtls_ssl_context *ssl,
-                                         unsigned char *mki_value,
-                                         uint16_t mki_len )
+int mbedtls_ssl_dtls_srtp_set_mki_value(mbedtls_ssl_context *ssl,
+                                        unsigned char *mki_value,
+                                        uint16_t mki_len)
 {
-    if( mki_len > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (mki_len > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    if( ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED )
-    {
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+    if (ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED) {
+        return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     }
 
-    memcpy( ssl->dtls_srtp_info.mki_value, mki_value, mki_len );
+    memcpy(ssl->dtls_srtp_info.mki_value, mki_value, mki_len);
     ssl->dtls_srtp_info.mki_len = mki_len;
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_conf_dtls_srtp_protection_profiles( mbedtls_ssl_config *conf,
-                                                    const mbedtls_ssl_srtp_profile *profiles )
+int mbedtls_ssl_conf_dtls_srtp_protection_profiles(mbedtls_ssl_config *conf,
+                                                   const mbedtls_ssl_srtp_profile *profiles)
 {
     const mbedtls_ssl_srtp_profile *p;
     size_t list_size = 0;
 
     /* check the profiles list: all entry must be valid,
      * its size cannot be more than the total number of supported profiles, currently 4 */
-    for( p = profiles; *p != MBEDTLS_TLS_SRTP_UNSET &&
-                       list_size <= MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH;
-         p++ )
-    {
-        if( mbedtls_ssl_check_srtp_profile_value( *p ) != MBEDTLS_TLS_SRTP_UNSET )
-        {
+    for (p = profiles; *p != MBEDTLS_TLS_SRTP_UNSET &&
+         list_size <= MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH;
+         p++) {
+        if (mbedtls_ssl_check_srtp_profile_value(*p) != MBEDTLS_TLS_SRTP_UNSET) {
             list_size++;
-        }
-        else
-        {
+        } else {
             /* unsupported value, stop parsing and set the size to an error value */
             list_size = MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH + 1;
         }
     }
 
-    if( list_size > MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH )
-    {
-                conf->dtls_srtp_profile_list = NULL;
-                conf->dtls_srtp_profile_list_len = 0;
-                return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (list_size > MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH) {
+        conf->dtls_srtp_profile_list = NULL;
+        conf->dtls_srtp_profile_list_len = 0;
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     conf->dtls_srtp_profile_list = profiles;
     conf->dtls_srtp_profile_list_len = list_size;
 
-    return( 0 );
+    return 0;
 }
 
-void mbedtls_ssl_get_dtls_srtp_negotiation_result( const mbedtls_ssl_context *ssl,
-                                                   mbedtls_dtls_srtp_info *dtls_srtp_info )
+void mbedtls_ssl_get_dtls_srtp_negotiation_result(const mbedtls_ssl_context *ssl,
+                                                  mbedtls_dtls_srtp_info *dtls_srtp_info)
 {
     dtls_srtp_info->chosen_dtls_srtp_profile = ssl->dtls_srtp_info.chosen_dtls_srtp_profile;
     /* do not copy the mki value if there is no chosen profile */
-    if( dtls_srtp_info->chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET )
-    {
+    if (dtls_srtp_info->chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET) {
         dtls_srtp_info->mki_len = 0;
-    }
-    else
-    {
+    } else {
         dtls_srtp_info->mki_len = ssl->dtls_srtp_info.mki_len;
-        memcpy( dtls_srtp_info->mki_value, ssl->dtls_srtp_info.mki_value,
-                ssl->dtls_srtp_info.mki_len );
+        memcpy(dtls_srtp_info->mki_value, ssl->dtls_srtp_info.mki_value,
+               ssl->dtls_srtp_info.mki_len);
     }
 }
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
-void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor )
+void mbedtls_ssl_conf_max_version(mbedtls_ssl_config *conf, int major, int minor)
 {
     conf->max_major_ver = major;
     conf->max_minor_ver = minor;
 }
 
-void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor )
+void mbedtls_ssl_conf_min_version(mbedtls_ssl_config *conf, int major, int minor)
 {
     conf->min_major_ver = major;
     conf->min_minor_ver = minor;
 }
 
 #if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
-void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback )
+void mbedtls_ssl_conf_fallback(mbedtls_ssl_config *conf, char fallback)
 {
     conf->fallback = fallback;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf,
-                                          char cert_req_ca_list )
+void mbedtls_ssl_conf_cert_req_ca_list(mbedtls_ssl_config *conf,
+                                       char cert_req_ca_list)
 {
     conf->cert_req_ca_list = cert_req_ca_list;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm )
+void mbedtls_ssl_conf_encrypt_then_mac(mbedtls_ssl_config *conf, char etm)
 {
     conf->encrypt_then_mac = etm;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems )
+void mbedtls_ssl_conf_extended_master_secret(mbedtls_ssl_config *conf, char ems)
 {
     conf->extended_ms = ems;
 }
 #endif
 
 #if defined(MBEDTLS_ARC4_C)
-void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 )
+void mbedtls_ssl_conf_arc4_support(mbedtls_ssl_config *conf, char arc4)
 {
     conf->arc4_disabled = arc4;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code )
+int mbedtls_ssl_conf_max_frag_len(mbedtls_ssl_config *conf, unsigned char mfl_code)
 {
-    if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ||
-        ssl_mfl_code_to_length( mfl_code ) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ||
+        ssl_mfl_code_to_length(mfl_code) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     conf->mfl_code = mfl_code;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate )
+void mbedtls_ssl_conf_truncated_hmac(mbedtls_ssl_config *conf, int truncate)
 {
     conf->trunc_hmac = truncate;
 }
 #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
 
 #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
-void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split )
+void mbedtls_ssl_conf_cbc_record_splitting(mbedtls_ssl_config *conf, char split)
 {
     conf->cbc_record_splitting = split;
 }
 #endif
 
-void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy )
+void mbedtls_ssl_conf_legacy_renegotiation(mbedtls_ssl_config *conf, int allow_legacy)
 {
     conf->allow_legacy_renegotiation = allow_legacy;
 }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation )
+void mbedtls_ssl_conf_renegotiation(mbedtls_ssl_config *conf, int renegotiation)
 {
     conf->disable_renegotiation = renegotiation;
 }
 
-void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records )
+void mbedtls_ssl_conf_renegotiation_enforced(mbedtls_ssl_config *conf, int max_records)
 {
     conf->renego_max_records = max_records;
 }
 
-void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf,
-                                   const unsigned char period[8] )
+void mbedtls_ssl_conf_renegotiation_period(mbedtls_ssl_config *conf,
+                                           const unsigned char period[8])
 {
-    memcpy( conf->renego_period, period, 8 );
+    memcpy(conf->renego_period, period, 8);
 }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
 #if defined(MBEDTLS_SSL_CLI_C)
-void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets )
+void mbedtls_ssl_conf_session_tickets(mbedtls_ssl_config *conf, int use_tickets)
 {
     conf->session_tickets = use_tickets;
 }
 #endif
 
 #if defined(MBEDTLS_SSL_SRV_C)
-void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_ticket_write_t *f_ticket_write,
-        mbedtls_ssl_ticket_parse_t *f_ticket_parse,
-        void *p_ticket )
+void mbedtls_ssl_conf_session_tickets_cb(mbedtls_ssl_config *conf,
+                                         mbedtls_ssl_ticket_write_t *f_ticket_write,
+                                         mbedtls_ssl_ticket_parse_t *f_ticket_parse,
+                                         void *p_ticket)
 {
     conf->f_ticket_write = f_ticket_write;
     conf->f_ticket_parse = f_ticket_parse;
@@ -5028,17 +4908,17 @@
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 #if defined(MBEDTLS_SSL_EXPORT_KEYS)
-void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_export_keys_t *f_export_keys,
-        void *p_export_keys )
+void mbedtls_ssl_conf_export_keys_cb(mbedtls_ssl_config *conf,
+                                     mbedtls_ssl_export_keys_t *f_export_keys,
+                                     void *p_export_keys)
 {
     conf->f_export_keys = f_export_keys;
     conf->p_export_keys = p_export_keys;
 }
 
-void mbedtls_ssl_conf_export_keys_ext_cb( mbedtls_ssl_config *conf,
-        mbedtls_ssl_export_keys_ext_t *f_export_keys_ext,
-        void *p_export_keys )
+void mbedtls_ssl_conf_export_keys_ext_cb(mbedtls_ssl_config *conf,
+                                         mbedtls_ssl_export_keys_ext_t *f_export_keys_ext,
+                                         void *p_export_keys)
 {
     conf->f_export_keys_ext = f_export_keys_ext;
     conf->p_export_keys = p_export_keys;
@@ -5052,7 +4932,7 @@
     mbedtls_ssl_async_decrypt_t *f_async_decrypt,
     mbedtls_ssl_async_resume_t *f_async_resume,
     mbedtls_ssl_async_cancel_t *f_async_cancel,
-    void *async_config_data )
+    void *async_config_data)
 {
     conf->f_async_sign_start = f_async_sign;
     conf->f_async_decrypt_start = f_async_decrypt;
@@ -5061,178 +4941,176 @@
     conf->p_async_config_data = async_config_data;
 }
 
-void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf )
+void *mbedtls_ssl_conf_get_async_config_data(const mbedtls_ssl_config *conf)
 {
-    return( conf->p_async_config_data );
+    return conf->p_async_config_data;
 }
 
-void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl )
+void *mbedtls_ssl_get_async_operation_data(const mbedtls_ssl_context *ssl)
 {
-    if( ssl->handshake == NULL )
-        return( NULL );
-    else
-        return( ssl->handshake->user_async_ctx );
+    if (ssl->handshake == NULL) {
+        return NULL;
+    } else {
+        return ssl->handshake->user_async_ctx;
+    }
 }
 
-void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl,
-                                 void *ctx )
+void mbedtls_ssl_set_async_operation_data(mbedtls_ssl_context *ssl,
+                                          void *ctx)
 {
-    if( ssl->handshake != NULL )
+    if (ssl->handshake != NULL) {
         ssl->handshake->user_async_ctx = ctx;
+    }
 }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
 /*
  * SSL get accessors
  */
-uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl )
+uint32_t mbedtls_ssl_get_verify_result(const mbedtls_ssl_context *ssl)
 {
-    if( ssl->session != NULL )
-        return( ssl->session->verify_result );
+    if (ssl->session != NULL) {
+        return ssl->session->verify_result;
+    }
 
-    if( ssl->session_negotiate != NULL )
-        return( ssl->session_negotiate->verify_result );
+    if (ssl->session_negotiate != NULL) {
+        return ssl->session_negotiate->verify_result;
+    }
 
-    return( 0xFFFFFFFF );
+    return 0xFFFFFFFF;
 }
 
-const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl )
+const char *mbedtls_ssl_get_ciphersuite(const mbedtls_ssl_context *ssl)
 {
-    if( ssl == NULL || ssl->session == NULL )
-        return( NULL );
+    if (ssl == NULL || ssl->session == NULL) {
+        return NULL;
+    }
 
-    return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite );
+    return mbedtls_ssl_get_ciphersuite_name(ssl->session->ciphersuite);
 }
 
-const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl )
+const char *mbedtls_ssl_get_version(const mbedtls_ssl_context *ssl)
 {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        switch( ssl->minor_ver )
-        {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        switch (ssl->minor_ver) {
             case MBEDTLS_SSL_MINOR_VERSION_2:
-                return( "DTLSv1.0" );
+                return "DTLSv1.0";
 
             case MBEDTLS_SSL_MINOR_VERSION_3:
-                return( "DTLSv1.2" );
+                return "DTLSv1.2";
 
             default:
-                return( "unknown (DTLS)" );
+                return "unknown (DTLS)";
         }
     }
 #endif
 
-    switch( ssl->minor_ver )
-    {
+    switch (ssl->minor_ver) {
         case MBEDTLS_SSL_MINOR_VERSION_0:
-            return( "SSLv3.0" );
+            return "SSLv3.0";
 
         case MBEDTLS_SSL_MINOR_VERSION_1:
-            return( "TLSv1.0" );
+            return "TLSv1.0";
 
         case MBEDTLS_SSL_MINOR_VERSION_2:
-            return( "TLSv1.1" );
+            return "TLSv1.1";
 
         case MBEDTLS_SSL_MINOR_VERSION_3:
-            return( "TLSv1.2" );
+            return "TLSv1.2";
 
         default:
-            return( "unknown" );
+            return "unknown";
     }
 }
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-size_t mbedtls_ssl_get_input_max_frag_len( const mbedtls_ssl_context *ssl )
+size_t mbedtls_ssl_get_input_max_frag_len(const mbedtls_ssl_context *ssl)
 {
     size_t max_len = MBEDTLS_SSL_MAX_CONTENT_LEN;
     size_t read_mfl;
 
     /* Use the configured MFL for the client if we're past SERVER_HELLO_DONE */
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-        ssl->state >= MBEDTLS_SSL_SERVER_HELLO_DONE )
-    {
-        return ssl_mfl_code_to_length( ssl->conf->mfl_code );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
+        ssl->state >= MBEDTLS_SSL_SERVER_HELLO_DONE) {
+        return ssl_mfl_code_to_length(ssl->conf->mfl_code);
     }
 
     /* Check if a smaller max length was negotiated */
-    if( ssl->session_out != NULL )
-    {
-        read_mfl = ssl_mfl_code_to_length( ssl->session_out->mfl_code );
-        if( read_mfl < max_len )
-        {
+    if (ssl->session_out != NULL) {
+        read_mfl = ssl_mfl_code_to_length(ssl->session_out->mfl_code);
+        if (read_mfl < max_len) {
             max_len = read_mfl;
         }
     }
 
     // During a handshake, use the value being negotiated
-    if( ssl->session_negotiate != NULL )
-    {
-        read_mfl = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code );
-        if( read_mfl < max_len )
-        {
+    if (ssl->session_negotiate != NULL) {
+        read_mfl = ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code);
+        if (read_mfl < max_len) {
             max_len = read_mfl;
         }
     }
 
-    return( max_len );
+    return max_len;
 }
 
-size_t mbedtls_ssl_get_output_max_frag_len( const mbedtls_ssl_context *ssl )
+size_t mbedtls_ssl_get_output_max_frag_len(const mbedtls_ssl_context *ssl)
 {
     size_t max_len;
 
     /*
      * Assume mfl_code is correct since it was checked when set
      */
-    max_len = ssl_mfl_code_to_length( ssl->conf->mfl_code );
+    max_len = ssl_mfl_code_to_length(ssl->conf->mfl_code);
 
     /* Check if a smaller max length was negotiated */
-    if( ssl->session_out != NULL &&
-        ssl_mfl_code_to_length( ssl->session_out->mfl_code ) < max_len )
-    {
-        max_len = ssl_mfl_code_to_length( ssl->session_out->mfl_code );
+    if (ssl->session_out != NULL &&
+        ssl_mfl_code_to_length(ssl->session_out->mfl_code) < max_len) {
+        max_len = ssl_mfl_code_to_length(ssl->session_out->mfl_code);
     }
 
     /* During a handshake, use the value being negotiated */
-    if( ssl->session_negotiate != NULL &&
-        ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ) < max_len )
-    {
-        max_len = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code );
+    if (ssl->session_negotiate != NULL &&
+        ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code) < max_len) {
+        max_len = ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code);
     }
 
-    return( max_len );
+    return max_len;
 }
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl )
+size_t mbedtls_ssl_get_max_frag_len(const mbedtls_ssl_context *ssl)
 {
-    return mbedtls_ssl_get_output_max_frag_len( ssl );
+    return mbedtls_ssl_get_output_max_frag_len(ssl);
 }
 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-size_t mbedtls_ssl_get_current_mtu( const mbedtls_ssl_context *ssl )
+size_t mbedtls_ssl_get_current_mtu(const mbedtls_ssl_context *ssl)
 {
     /* Return unlimited mtu for client hello messages to avoid fragmentation. */
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-        ( ssl->state == MBEDTLS_SSL_CLIENT_HELLO ||
-          ssl->state == MBEDTLS_SSL_SERVER_HELLO ) )
-        return ( 0 );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
+        (ssl->state == MBEDTLS_SSL_CLIENT_HELLO ||
+         ssl->state == MBEDTLS_SSL_SERVER_HELLO)) {
+        return 0;
+    }
 
-    if( ssl->handshake == NULL || ssl->handshake->mtu == 0 )
-        return( ssl->mtu );
+    if (ssl->handshake == NULL || ssl->handshake->mtu == 0) {
+        return ssl->mtu;
+    }
 
-    if( ssl->mtu == 0 )
-        return( ssl->handshake->mtu );
+    if (ssl->mtu == 0) {
+        return ssl->handshake->mtu;
+    }
 
-    return( ssl->mtu < ssl->handshake->mtu ?
-            ssl->mtu : ssl->handshake->mtu );
+    return ssl->mtu < ssl->handshake->mtu ?
+           ssl->mtu : ssl->handshake->mtu;
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl )
+int mbedtls_ssl_get_max_out_record_payload(const mbedtls_ssl_context *ssl)
 {
     size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
 
@@ -5242,30 +5120,31 @@
 #endif
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    const size_t mfl = mbedtls_ssl_get_output_max_frag_len( ssl );
+    const size_t mfl = mbedtls_ssl_get_output_max_frag_len(ssl);
 
-    if( max_len > mfl )
+    if (max_len > mfl) {
         max_len = mfl;
+    }
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( mbedtls_ssl_get_current_mtu( ssl ) != 0 )
-    {
-        const size_t mtu = mbedtls_ssl_get_current_mtu( ssl );
-        const int ret = mbedtls_ssl_get_record_expansion( ssl );
+    if (mbedtls_ssl_get_current_mtu(ssl) != 0) {
+        const size_t mtu = mbedtls_ssl_get_current_mtu(ssl);
+        const int ret = mbedtls_ssl_get_record_expansion(ssl);
         const size_t overhead = (size_t) ret;
 
-        if( ret < 0 )
-            return( ret );
-
-        if( mtu <= overhead )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "MTU too low for record expansion" ) );
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+        if (ret < 0) {
+            return ret;
         }
 
-        if( max_len > mtu - overhead )
+        if (mtu <= overhead) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("MTU too low for record expansion"));
+            return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
+        }
+
+        if (max_len > mtu - overhead) {
             max_len = mtu - overhead;
+        }
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
@@ -5274,45 +5153,46 @@
     ((void) ssl);
 #endif
 
-    return( (int) max_len );
+    return (int) max_len;
 }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl )
+const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert(const mbedtls_ssl_context *ssl)
 {
-    if( ssl == NULL || ssl->session == NULL )
-        return( NULL );
+    if (ssl == NULL || ssl->session == NULL) {
+        return NULL;
+    }
 
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    return( ssl->session->peer_cert );
+    return ssl->session->peer_cert;
 #else
-    return( NULL );
+    return NULL;
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_SSL_CLI_C)
-int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl,
-                             mbedtls_ssl_session *dst )
+int mbedtls_ssl_get_session(const mbedtls_ssl_context *ssl,
+                            mbedtls_ssl_session *dst)
 {
-    if( ssl == NULL ||
+    if (ssl == NULL ||
         dst == NULL ||
         ssl->session == NULL ||
-        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    return( mbedtls_ssl_session_copy( dst, ssl->session ) );
+    return mbedtls_ssl_session_copy(dst, ssl->session);
 }
 #endif /* MBEDTLS_SSL_CLI_C */
 
-const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer( const mbedtls_ssl_context *ssl )
+const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer(const mbedtls_ssl_context *ssl)
 {
-    if( ssl == NULL )
-        return( NULL );
+    if (ssl == NULL) {
+        return NULL;
+    }
 
-    return( ssl->session );
+    return ssl->session;
 }
 
 /*
@@ -5376,21 +5256,23 @@
 #define SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT        6
 
 #define SSL_SERIALIZED_SESSION_CONFIG_BITFLAG                           \
-    ( (uint16_t) (                                                      \
-        ( SSL_SERIALIZED_SESSION_CONFIG_TIME          << SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT          ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_CRT           << SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT           ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET << SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_MFL           << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT           ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC    << SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT    ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_ETM           << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT           ) | \
-        ( SSL_SERIALIZED_SESSION_CONFIG_TICKET        << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT        ) ) )
+    ((uint16_t) (                                                      \
+         (SSL_SERIALIZED_SESSION_CONFIG_TIME << SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_CRT << SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET << \
+             SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_MFL << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC << \
+             SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT)))
 
 static unsigned char ssl_serialized_session_header[] = {
     MBEDTLS_VERSION_MAJOR,
     MBEDTLS_VERSION_MINOR,
     MBEDTLS_VERSION_PATCH,
-    MBEDTLS_BYTE_1( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ),
-    MBEDTLS_BYTE_0( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ),
+    MBEDTLS_BYTE_1(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG),
+    MBEDTLS_BYTE_0(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG),
 };
 
 /*
@@ -5428,11 +5310,11 @@
  * together in one block.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_session_save( const mbedtls_ssl_session *session,
-                             unsigned char omit_header,
-                             unsigned char *buf,
-                             size_t buf_len,
-                             size_t *olen )
+static int ssl_session_save(const mbedtls_ssl_session *session,
+                            unsigned char omit_header,
+                            unsigned char *buf,
+                            size_t buf_len,
+                            size_t *olen)
 {
     unsigned char *p = buf;
     size_t used = 0;
@@ -5446,19 +5328,17 @@
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 
-    if( !omit_header )
-    {
+    if (!omit_header) {
         /*
          * Add version identifier
          */
 
-        used += sizeof( ssl_serialized_session_header );
+        used += sizeof(ssl_serialized_session_header);
 
-        if( used <= buf_len )
-        {
-            memcpy( p, ssl_serialized_session_header,
-                    sizeof( ssl_serialized_session_header ) );
-            p += sizeof( ssl_serialized_session_header );
+        if (used <= buf_len) {
+            memcpy(p, ssl_serialized_session_header,
+                   sizeof(ssl_serialized_session_header));
+            p += sizeof(ssl_serialized_session_header);
         }
     }
 
@@ -5468,11 +5348,10 @@
 #if defined(MBEDTLS_HAVE_TIME)
     used += 8;
 
-    if( used <= buf_len )
-    {
+    if (used <= buf_len) {
         start = (uint64_t) session->start;
 
-        MBEDTLS_PUT_UINT64_BE( start, p, 0 );
+        MBEDTLS_PUT_UINT64_BE(start, p, 0);
         p += 8;
     }
 #endif /* MBEDTLS_HAVE_TIME */
@@ -5481,27 +5360,26 @@
      * Basic mandatory fields
      */
     used += 2   /* ciphersuite */
-          + 1   /* compression */
-          + 1   /* id_len */
-          + sizeof( session->id )
-          + sizeof( session->master )
-          + 4;  /* verify_result */
+            + 1 /* compression */
+            + 1 /* id_len */
+            + sizeof(session->id)
+            + sizeof(session->master)
+            + 4; /* verify_result */
 
-    if( used <= buf_len )
-    {
-        MBEDTLS_PUT_UINT16_BE( session->ciphersuite, p, 0 );
+    if (used <= buf_len) {
+        MBEDTLS_PUT_UINT16_BE(session->ciphersuite, p, 0);
         p += 2;
 
-        *p++ = MBEDTLS_BYTE_0( session->compression );
+        *p++ = MBEDTLS_BYTE_0(session->compression);
 
-        *p++ = MBEDTLS_BYTE_0( session->id_len );
-        memcpy( p, session->id, 32 );
+        *p++ = MBEDTLS_BYTE_0(session->id_len);
+        memcpy(p, session->id, 32);
         p += 32;
 
-        memcpy( p, session->master, 48 );
+        memcpy(p, session->master, 48);
         p += 48;
 
-        MBEDTLS_PUT_UINT32_BE( session->verify_result, p, 0 );
+        MBEDTLS_PUT_UINT32_BE(session->verify_result, p, 0);
         p += 4;
     }
 
@@ -5510,43 +5388,37 @@
      */
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( session->peer_cert == NULL )
+    if (session->peer_cert == NULL) {
         cert_len = 0;
-    else
+    } else {
         cert_len = session->peer_cert->raw.len;
+    }
 
     used += 3 + cert_len;
 
-    if( used <= buf_len )
-    {
-        *p++ = MBEDTLS_BYTE_2( cert_len );
-        *p++ = MBEDTLS_BYTE_1( cert_len );
-        *p++ = MBEDTLS_BYTE_0( cert_len );
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_2(cert_len);
+        *p++ = MBEDTLS_BYTE_1(cert_len);
+        *p++ = MBEDTLS_BYTE_0(cert_len);
 
-        if( session->peer_cert != NULL )
-        {
-            memcpy( p, session->peer_cert->raw.p, cert_len );
+        if (session->peer_cert != NULL) {
+            memcpy(p, session->peer_cert->raw.p, cert_len);
             p += cert_len;
         }
     }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( session->peer_cert_digest != NULL )
-    {
+    if (session->peer_cert_digest != NULL) {
         used += 1 /* type */ + 1 /* length */ + session->peer_cert_digest_len;
-        if( used <= buf_len )
-        {
+        if (used <= buf_len) {
             *p++ = (unsigned char) session->peer_cert_digest_type;
             *p++ = (unsigned char) session->peer_cert_digest_len;
-            memcpy( p, session->peer_cert_digest,
-                    session->peer_cert_digest_len );
+            memcpy(p, session->peer_cert_digest,
+                   session->peer_cert_digest_len);
             p += session->peer_cert_digest_len;
         }
-    }
-    else
-    {
+    } else {
         used += 2;
-        if( used <= buf_len )
-        {
+        if (used <= buf_len) {
             *p++ = (unsigned char) MBEDTLS_MD_NONE;
             *p++ = 0;
         }
@@ -5560,19 +5432,17 @@
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
     used += 3 + session->ticket_len + 4; /* len + ticket + lifetime */
 
-    if( used <= buf_len )
-    {
-        *p++ = MBEDTLS_BYTE_2( session->ticket_len );
-        *p++ = MBEDTLS_BYTE_1( session->ticket_len );
-        *p++ = MBEDTLS_BYTE_0( session->ticket_len );
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_2(session->ticket_len);
+        *p++ = MBEDTLS_BYTE_1(session->ticket_len);
+        *p++ = MBEDTLS_BYTE_0(session->ticket_len);
 
-        if( session->ticket != NULL )
-        {
-            memcpy( p, session->ticket, session->ticket_len );
+        if (session->ticket != NULL) {
+            memcpy(p, session->ticket, session->ticket_len);
             p += session->ticket_len;
         }
 
-        MBEDTLS_PUT_UINT32_BE( session->ticket_lifetime, p, 0 );
+        MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0);
         p += 4;
     }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
@@ -5583,42 +5453,46 @@
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
     used += 1;
 
-    if( used <= buf_len )
+    if (used <= buf_len) {
         *p++ = session->mfl_code;
+    }
 #endif
 
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
     used += 1;
 
-    if( used <= buf_len )
-        *p++ = (unsigned char)( ( session->trunc_hmac ) & 0xFF );
+    if (used <= buf_len) {
+        *p++ = (unsigned char) ((session->trunc_hmac) & 0xFF);
+    }
 #endif
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
     used += 1;
 
-    if( used <= buf_len )
-        *p++ = MBEDTLS_BYTE_0( session->encrypt_then_mac );
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_0(session->encrypt_then_mac);
+    }
 #endif
 
     /* Done */
     *olen = used;
 
-    if( used > buf_len )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+    if (used > buf_len) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Public wrapper for ssl_session_save()
  */
-int mbedtls_ssl_session_save( const mbedtls_ssl_session *session,
-                              unsigned char *buf,
-                              size_t buf_len,
-                              size_t *olen )
+int mbedtls_ssl_session_save(const mbedtls_ssl_session *session,
+                             unsigned char *buf,
+                             size_t buf_len,
+                             size_t *olen)
 {
-    return( ssl_session_save( session, 0, buf, buf_len, olen ) );
+    return ssl_session_save(session, 0, buf, buf_len, olen);
 }
 
 /*
@@ -5628,10 +5502,10 @@
  * case of error, and has an extra option omit_header.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_session_load( mbedtls_ssl_session *session,
-                             unsigned char omit_header,
-                             const unsigned char *buf,
-                             size_t len )
+static int ssl_session_load(mbedtls_ssl_session *session,
+                            unsigned char omit_header,
+                            const unsigned char *buf,
+                            size_t len)
 {
     const unsigned char *p = buf;
     const unsigned char * const end = buf + len;
@@ -5644,38 +5518,38 @@
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-    if( !omit_header )
-    {
+    if (!omit_header) {
         /*
          * Check version identifier
          */
 
-        if( (size_t)( end - p ) < sizeof( ssl_serialized_session_header ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        if( memcmp( p, ssl_serialized_session_header,
-                    sizeof( ssl_serialized_session_header ) ) != 0 )
-        {
-            return( MBEDTLS_ERR_SSL_VERSION_MISMATCH );
+        if ((size_t) (end - p) < sizeof(ssl_serialized_session_header)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
         }
-        p += sizeof( ssl_serialized_session_header );
+
+        if (memcmp(p, ssl_serialized_session_header,
+                   sizeof(ssl_serialized_session_header)) != 0) {
+            return MBEDTLS_ERR_SSL_VERSION_MISMATCH;
+        }
+        p += sizeof(ssl_serialized_session_header);
     }
 
     /*
      * Time
      */
 #if defined(MBEDTLS_HAVE_TIME)
-    if( 8 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (8 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    start = ( (uint64_t) p[0] << 56 ) |
-            ( (uint64_t) p[1] << 48 ) |
-            ( (uint64_t) p[2] << 40 ) |
-            ( (uint64_t) p[3] << 32 ) |
-            ( (uint64_t) p[4] << 24 ) |
-            ( (uint64_t) p[5] << 16 ) |
-            ( (uint64_t) p[6] <<  8 ) |
-            ( (uint64_t) p[7]       );
+    start = ((uint64_t) p[0] << 56) |
+            ((uint64_t) p[1] << 48) |
+            ((uint64_t) p[2] << 40) |
+            ((uint64_t) p[3] << 32) |
+            ((uint64_t) p[4] << 24) |
+            ((uint64_t) p[5] << 16) |
+            ((uint64_t) p[6] <<  8) |
+            ((uint64_t) p[7]);
     p += 8;
 
     session->start = (time_t) start;
@@ -5684,25 +5558,26 @@
     /*
      * Basic mandatory fields
      */
-    if( 2 + 1 + 1 + 32 + 48 + 4 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (2 + 1 + 1 + 32 + 48 + 4 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    session->ciphersuite = ( p[0] << 8 ) | p[1];
+    session->ciphersuite = (p[0] << 8) | p[1];
     p += 2;
 
     session->compression = *p++;
 
     session->id_len = *p++;
-    memcpy( session->id, p, 32 );
+    memcpy(session->id, p, 32);
     p += 32;
 
-    memcpy( session->master, p, 48 );
+    memcpy(session->master, p, 48);
     p += 48;
 
-    session->verify_result = ( (uint32_t) p[0] << 24 ) |
-                             ( (uint32_t) p[1] << 16 ) |
-                             ( (uint32_t) p[2] <<  8 ) |
-                             ( (uint32_t) p[3]       );
+    session->verify_result = ((uint32_t) p[0] << 24) |
+                             ((uint32_t) p[1] << 16) |
+                             ((uint32_t) p[2] <<  8) |
+                             ((uint32_t) p[3]);
     p += 4;
 
     /* Immediately clear invalid pointer values that have been read, in case
@@ -5724,64 +5599,69 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
     /* Deserialize CRT from the end of the ticket. */
-    if( 3 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (3 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2];
+    cert_len = (p[0] << 16) | (p[1] << 8) | p[2];
     p += 3;
 
-    if( cert_len != 0 )
-    {
+    if (cert_len != 0) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-        if( cert_len > (size_t)( end - p ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (cert_len > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
-        session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
+        session->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
 
-        if( session->peer_cert == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+        if (session->peer_cert == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        mbedtls_x509_crt_init( session->peer_cert );
+        mbedtls_x509_crt_init(session->peer_cert);
 
-        if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert,
-                                                p, cert_len ) ) != 0 )
-        {
-            mbedtls_x509_crt_free( session->peer_cert );
-            mbedtls_free( session->peer_cert );
+        if ((ret = mbedtls_x509_crt_parse_der(session->peer_cert,
+                                              p, cert_len)) != 0) {
+            mbedtls_x509_crt_free(session->peer_cert);
+            mbedtls_free(session->peer_cert);
             session->peer_cert = NULL;
-            return( ret );
+            return ret;
         }
 
         p += cert_len;
     }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
     /* Deserialize CRT digest from the end of the ticket. */
-    if( 2 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (2 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     session->peer_cert_digest_type = (mbedtls_md_type_t) *p++;
     session->peer_cert_digest_len  = (size_t) *p++;
 
-    if( session->peer_cert_digest_len != 0 )
-    {
+    if (session->peer_cert_digest_len != 0) {
         const mbedtls_md_info_t *md_info =
-            mbedtls_md_info_from_type( session->peer_cert_digest_type );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        if( session->peer_cert_digest_len != mbedtls_md_get_size( md_info ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+            mbedtls_md_info_from_type(session->peer_cert_digest_type);
+        if (md_info == NULL) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        if (session->peer_cert_digest_len != mbedtls_md_get_size(md_info)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
-        if( session->peer_cert_digest_len > (size_t)( end - p ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (session->peer_cert_digest_len > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
         session->peer_cert_digest =
-            mbedtls_calloc( 1, session->peer_cert_digest_len );
-        if( session->peer_cert_digest == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+            mbedtls_calloc(1, session->peer_cert_digest_len);
+        if (session->peer_cert_digest == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        memcpy( session->peer_cert_digest, p,
-                session->peer_cert_digest_len );
+        memcpy(session->peer_cert_digest, p,
+               session->peer_cert_digest_len);
         p += session->peer_cert_digest_len;
     }
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
@@ -5791,32 +5671,35 @@
      * Session ticket and associated data
      */
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    if( 3 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (3 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    session->ticket_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2];
+    session->ticket_len = (p[0] << 16) | (p[1] << 8) | p[2];
     p += 3;
 
-    if( session->ticket_len != 0 )
-    {
-        if( session->ticket_len > (size_t)( end - p ) )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (session->ticket_len != 0) {
+        if (session->ticket_len > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
-        session->ticket = mbedtls_calloc( 1, session->ticket_len );
-        if( session->ticket == NULL )
-            return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+        session->ticket = mbedtls_calloc(1, session->ticket_len);
+        if (session->ticket == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
 
-        memcpy( session->ticket, p, session->ticket_len );
+        memcpy(session->ticket, p, session->ticket_len);
         p += session->ticket_len;
     }
 
-    if( 4 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (4 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    session->ticket_lifetime = ( (uint32_t) p[0] << 24 ) |
-                               ( (uint32_t) p[1] << 16 ) |
-                               ( (uint32_t) p[2] <<  8 ) |
-                               ( (uint32_t) p[3]       );
+    session->ticket_lifetime = ((uint32_t) p[0] << 24) |
+                               ((uint32_t) p[1] << 16) |
+                               ((uint32_t) p[2] <<  8) |
+                               ((uint32_t) p[3]);
     p += 4;
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
@@ -5824,106 +5707,114 @@
      * Misc extension-related info
      */
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    if( 1 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (1 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     session->mfl_code = *p++;
 #endif
 
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-    if( 1 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (1 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     session->trunc_hmac = *p++;
 #endif
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    if( 1 > (size_t)( end - p ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (1 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     session->encrypt_then_mac = *p++;
 #endif
 
     /* Done, should have consumed entire buffer */
-    if( p != end )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (p != end) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Deserialize session: public wrapper for error cleaning
  */
-int mbedtls_ssl_session_load( mbedtls_ssl_session *session,
-                              const unsigned char *buf,
-                              size_t len )
+int mbedtls_ssl_session_load(mbedtls_ssl_session *session,
+                             const unsigned char *buf,
+                             size_t len)
 {
-    int ret = ssl_session_load( session, 0, buf, len );
+    int ret = ssl_session_load(session, 0, buf, len);
 
-    if( ret != 0 )
-        mbedtls_ssl_session_free( session );
+    if (ret != 0) {
+        mbedtls_ssl_session_free(session);
+    }
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Perform a single step of the SSL handshake
  */
-int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_handshake_step(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-        ret = mbedtls_ssl_handshake_client_step( ssl );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        ret = mbedtls_ssl_handshake_client_step(ssl);
+    }
 #endif
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-        ret = mbedtls_ssl_handshake_server_step( ssl );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        ret = mbedtls_ssl_handshake_server_step(ssl);
+    }
 #endif
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Perform the SSL handshake
  */
-int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_handshake(mbedtls_ssl_context *ssl)
 {
     int ret = 0;
 
     /* Sanity checks */
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use "
-                                     "mbedtls_ssl_set_timer_cb() for DTLS" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        (ssl->f_set_timer == NULL || ssl->f_get_timer == NULL)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("You must use "
+                                  "mbedtls_ssl_set_timer_cb() for DTLS"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> handshake"));
 
     /* Main handshake loop */
-    while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        ret = mbedtls_ssl_handshake_step( ssl );
+    while (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        ret = mbedtls_ssl_handshake_step(ssl);
 
-        if( ret != 0 )
+        if (ret != 0) {
             break;
+        }
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= handshake"));
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
@@ -5932,25 +5823,24 @@
  * Write HelloRequest to request renegotiation on server
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_hello_request( mbedtls_ssl_context *ssl )
+static int ssl_write_hello_request(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write hello request"));
 
     ssl->out_msglen  = 4;
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
     ssl->out_msg[0]  = MBEDTLS_SSL_HS_HELLO_REQUEST;
 
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write hello request"));
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_SRV_C */
 
@@ -5963,67 +5853,69 @@
  * If the handshake doesn't complete due to waiting for I/O, it will continue
  * during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively.
  */
-int mbedtls_ssl_start_renegotiation( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_start_renegotiation(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> renegotiate"));
 
-    if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
-        return( ret );
+    if ((ret = ssl_handshake_init(ssl)) != 0) {
+        return ret;
+    }
 
     /* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and
      * the ServerHello will have message_seq = 1" */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-    {
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING) {
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
             ssl->handshake->out_msg_seq = 1;
-        else
+        } else {
             ssl->handshake->in_msg_seq = 1;
+        }
     }
 #endif
 
     ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
     ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS;
 
-    if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_handshake(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= renegotiate"));
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Renegotiate current connection on client,
  * or request renegotiation on server
  */
-int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_renegotiate(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_SSL_SRV_C)
     /* On server, just send the request */
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
-        if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
         ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
 
         /* Did we already try/start sending HelloRequest? */
-        if( ssl->out_left != 0 )
-            return( mbedtls_ssl_flush_output( ssl ) );
+        if (ssl->out_left != 0) {
+            return mbedtls_ssl_flush_output(ssl);
+        }
 
-        return( ssl_write_hello_request( ssl ) );
+        return ssl_write_hello_request(ssl);
     }
 #endif /* MBEDTLS_SSL_SRV_C */
 
@@ -6032,92 +5924,87 @@
      * On client, either start the renegotiation process or,
      * if already in progress, continue the handshake
      */
-    if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-    {
-        if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-        if( ( ret = mbedtls_ssl_start_renegotiation( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_start_renegotiation", ret );
-            return( ret );
+    if (ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) {
+        if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
         }
-    }
-    else
-    {
-        if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
+
+        if ((ret = mbedtls_ssl_start_renegotiation(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_start_renegotiation", ret);
+            return ret;
+        }
+    } else {
+        if ((ret = mbedtls_ssl_handshake(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+            return ret;
         }
     }
 #endif /* MBEDTLS_SSL_CLI_C */
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert )
+static void ssl_key_cert_free(mbedtls_ssl_key_cert *key_cert)
 {
     mbedtls_ssl_key_cert *cur = key_cert, *next;
 
-    while( cur != NULL )
-    {
+    while (cur != NULL) {
         next = cur->next;
-        mbedtls_free( cur );
+        mbedtls_free(cur);
         cur = next;
     }
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_handshake_free(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_handshake_params *handshake = ssl->handshake;
 
-    if( handshake == NULL )
+    if (handshake == NULL) {
         return;
+    }
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0 )
-    {
-        ssl->conf->f_async_cancel( ssl );
+    if (ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0) {
+        ssl->conf->f_async_cancel(ssl);
         handshake->async_in_progress = 0;
     }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-    mbedtls_md5_free(    &handshake->fin_md5  );
-    mbedtls_sha1_free(   &handshake->fin_sha1 );
+    mbedtls_md5_free(&handshake->fin_md5);
+    mbedtls_sha1_free(&handshake->fin_sha1);
 #endif
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_SHA256_C)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &handshake->fin_sha256_psa );
+    psa_hash_abort(&handshake->fin_sha256_psa);
 #else
-    mbedtls_sha256_free(   &handshake->fin_sha256    );
+    mbedtls_sha256_free(&handshake->fin_sha256);
 #endif
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_hash_abort( &handshake->fin_sha384_psa );
+    psa_hash_abort(&handshake->fin_sha384_psa);
 #else
-    mbedtls_sha512_free(   &handshake->fin_sha512    );
+    mbedtls_sha512_free(&handshake->fin_sha512);
 #endif
 #endif
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 #if defined(MBEDTLS_DHM_C)
-    mbedtls_dhm_free( &handshake->dhm_ctx );
+    mbedtls_dhm_free(&handshake->dhm_ctx);
 #endif
 #if defined(MBEDTLS_ECDH_C)
-    mbedtls_ecdh_free( &handshake->ecdh_ctx );
+    mbedtls_ecdh_free(&handshake->ecdh_ctx);
 #endif
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    mbedtls_ecjpake_free( &handshake->ecjpake_ctx );
+    mbedtls_ecjpake_free(&handshake->ecjpake_ctx);
 #if defined(MBEDTLS_SSL_CLI_C)
-    mbedtls_free( handshake->ecjpake_cache );
+    mbedtls_free(handshake->ecjpake_cache);
     handshake->ecjpake_cache = NULL;
     handshake->ecjpake_cache_len = 0;
 #endif
@@ -6126,14 +6013,13 @@
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
     /* explicit void pointer cast for buggy MS compiler */
-    mbedtls_free( (void *) handshake->curves );
+    mbedtls_free((void *) handshake->curves);
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
-    if( handshake->psk != NULL )
-    {
-        mbedtls_platform_zeroize( handshake->psk, handshake->psk_len );
-        mbedtls_free( handshake->psk );
+    if (handshake->psk != NULL) {
+        mbedtls_platform_zeroize(handshake->psk, handshake->psk_len);
+        mbedtls_free(handshake->psk);
     }
 #endif
 
@@ -6143,71 +6029,69 @@
      * Free only the linked list wrapper, not the keys themselves
      * since the belong to the SNI callback
      */
-    if( handshake->sni_key_cert != NULL )
-    {
+    if (handshake->sni_key_cert != NULL) {
         mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next;
 
-        while( cur != NULL )
-        {
+        while (cur != NULL) {
             next = cur->next;
-            mbedtls_free( cur );
+            mbedtls_free(cur);
             cur = next;
         }
     }
 #endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
 #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
-    mbedtls_x509_crt_restart_free( &handshake->ecrs_ctx );
-    if( handshake->ecrs_peer_cert != NULL )
-    {
-        mbedtls_x509_crt_free( handshake->ecrs_peer_cert );
-        mbedtls_free( handshake->ecrs_peer_cert );
+    mbedtls_x509_crt_restart_free(&handshake->ecrs_ctx);
+    if (handshake->ecrs_peer_cert != NULL) {
+        mbedtls_x509_crt_free(handshake->ecrs_peer_cert);
+        mbedtls_free(handshake->ecrs_peer_cert);
     }
 #endif
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C) &&        \
     !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    mbedtls_pk_free( &handshake->peer_pubkey );
+    mbedtls_pk_free(&handshake->peer_pubkey);
 #endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    mbedtls_free( handshake->verify_cookie );
-    mbedtls_ssl_flight_free( handshake->flight );
-    mbedtls_ssl_buffering_free( ssl );
+    mbedtls_free(handshake->verify_cookie);
+    mbedtls_ssl_flight_free(handshake->flight);
+    mbedtls_ssl_buffering_free(ssl);
 #endif
 
 #if defined(MBEDTLS_ECDH_C) &&                  \
     defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_destroy_key( handshake->ecdh_psa_privkey );
+    psa_destroy_key(handshake->ecdh_psa_privkey);
 #endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */
 
-    mbedtls_platform_zeroize( handshake,
-                              sizeof( mbedtls_ssl_handshake_params ) );
+    mbedtls_platform_zeroize(handshake,
+                             sizeof(mbedtls_ssl_handshake_params));
 
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     /* If the buffers are too big - reallocate. Because of the way Mbed TLS
      * processes datagrams and the fact that a datagram is allowed to have
      * several records in it, it is possible that the I/O buffers are not
      * empty at this stage */
-    handle_buffer_resizing( ssl, 1, mbedtls_ssl_get_input_buflen( ssl ),
-                                    mbedtls_ssl_get_output_buflen( ssl ) );
+    handle_buffer_resizing(ssl, 1, mbedtls_ssl_get_input_buflen(ssl),
+                           mbedtls_ssl_get_output_buflen(ssl));
 #endif
 }
 
-void mbedtls_ssl_session_free( mbedtls_ssl_session *session )
+void mbedtls_ssl_session_free(mbedtls_ssl_session *session)
 {
-    if( session == NULL )
+    if (session == NULL) {
         return;
+    }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-    ssl_clear_peer_cert( session );
+    ssl_clear_peer_cert(session);
 #endif
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    mbedtls_free( session->ticket );
+    mbedtls_free(session->ticket);
 #endif
 
-    mbedtls_platform_zeroize( session, sizeof( mbedtls_ssl_session ) );
+    mbedtls_platform_zeroize(session, sizeof(mbedtls_ssl_session));
 }
 
 #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION)
@@ -6242,22 +6126,25 @@
 #define SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT                  3
 
 #define SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG   \
-    ( (uint32_t) (                              \
-        ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID     << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID_BIT     ) | \
-        ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT      << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT_BIT      ) | \
-        ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY       << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY_BIT       ) | \
-        ( SSL_SERIALIZED_CONTEXT_CONFIG_ALPN                   << SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT                   ) | \
-        0u ) )
+    ((uint32_t) (                              \
+         (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID << \
+             SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID_BIT) | \
+         (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT << \
+             SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT_BIT) | \
+         (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY << \
+             SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY_BIT) | \
+         (SSL_SERIALIZED_CONTEXT_CONFIG_ALPN << SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT) | \
+         0u))
 
 static unsigned char ssl_serialized_context_header[] = {
     MBEDTLS_VERSION_MAJOR,
     MBEDTLS_VERSION_MINOR,
     MBEDTLS_VERSION_PATCH,
-    MBEDTLS_BYTE_1( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ),
-    MBEDTLS_BYTE_0( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ),
-    MBEDTLS_BYTE_2( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ),
-    MBEDTLS_BYTE_1( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ),
-    MBEDTLS_BYTE_0( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ),
+    MBEDTLS_BYTE_1(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG),
+    MBEDTLS_BYTE_0(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG),
+    MBEDTLS_BYTE_2(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG),
+    MBEDTLS_BYTE_1(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG),
+    MBEDTLS_BYTE_0(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG),
 };
 
 /*
@@ -6298,10 +6185,10 @@
  *  4. value was temporary (eg content of input buffer)
  *  5. value will be provided by the user again (eg I/O callbacks and context)
  */
-int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
-                              unsigned char *buf,
-                              size_t buf_len,
-                              size_t *olen )
+int mbedtls_ssl_context_save(mbedtls_ssl_context *ssl,
+                             unsigned char *buf,
+                             size_t buf_len,
+                             size_t *olen)
 {
     unsigned char *p = buf;
     size_t used = 0;
@@ -6317,94 +6204,84 @@
      * (only DTLS) but are currently used to simplify the implementation.
      */
     /* The initial handshake must be over */
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Initial handshake isn't over" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Initial handshake isn't over"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
-    if( ssl->handshake != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Handshake isn't completed" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->handshake != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Handshake isn't completed"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* Double-check that sub-structures are indeed ready */
-    if( ssl->transform == NULL || ssl->session == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Serialised structures aren't ready" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->transform == NULL || ssl->session == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Serialised structures aren't ready"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* There must be no pending incoming or outgoing data */
-    if( mbedtls_ssl_check_pending( ssl ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending incoming data" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (mbedtls_ssl_check_pending(ssl) != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("There is pending incoming data"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
-    if( ssl->out_left != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending outgoing data" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->out_left != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("There is pending outgoing data"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* Protocol must be DTLS, not TLS */
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only DTLS is supported" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Only DTLS is supported"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* Version must be 1.2 */
-    if( ssl->major_ver != MBEDTLS_SSL_MAJOR_VERSION_3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only version 1.2 supported" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->major_ver != MBEDTLS_SSL_MAJOR_VERSION_3) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Only version 1.2 supported"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only version 1.2 supported" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Only version 1.2 supported"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* We must be using an AEAD ciphersuite */
-    if( mbedtls_ssl_transform_uses_aead( ssl->transform ) != 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only AEAD ciphersuites supported" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (mbedtls_ssl_transform_uses_aead(ssl->transform) != 1) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Only AEAD ciphersuites supported"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
     /* Renegotiation must not be enabled */
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Renegotiation must not be enabled" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Renegotiation must not be enabled"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 #endif
 
     /*
      * Version and format identifier
      */
-    used += sizeof( ssl_serialized_context_header );
+    used += sizeof(ssl_serialized_context_header);
 
-    if( used <= buf_len )
-    {
-        memcpy( p, ssl_serialized_context_header,
-                sizeof( ssl_serialized_context_header ) );
-        p += sizeof( ssl_serialized_context_header );
+    if (used <= buf_len) {
+        memcpy(p, ssl_serialized_context_header,
+               sizeof(ssl_serialized_context_header));
+        p += sizeof(ssl_serialized_context_header);
     }
 
     /*
      * Session (length + data)
      */
-    ret = ssl_session_save( ssl->session, 1, NULL, 0, &session_len );
-    if( ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL )
-        return( ret );
+    ret = ssl_session_save(ssl->session, 1, NULL, 0, &session_len);
+    if (ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) {
+        return ret;
+    }
 
     used += 4 + session_len;
-    if( used <= buf_len )
-    {
-        MBEDTLS_PUT_UINT32_BE( session_len, p, 0 );
+    if (used <= buf_len) {
+        MBEDTLS_PUT_UINT32_BE(session_len, p, 0);
         p += 4;
 
-        ret = ssl_session_save( ssl->session, 1,
-                                p, session_len, &session_len );
-        if( ret != 0 )
-            return( ret );
+        ret = ssl_session_save(ssl->session, 1,
+                               p, session_len, &session_len);
+        if (ret != 0) {
+            return ret;
+        }
 
         p += session_len;
     }
@@ -6412,24 +6289,22 @@
     /*
      * Transform
      */
-    used += sizeof( ssl->transform->randbytes );
-    if( used <= buf_len )
-    {
-        memcpy( p, ssl->transform->randbytes,
-           sizeof( ssl->transform->randbytes ) );
-        p += sizeof( ssl->transform->randbytes );
+    used += sizeof(ssl->transform->randbytes);
+    if (used <= buf_len) {
+        memcpy(p, ssl->transform->randbytes,
+               sizeof(ssl->transform->randbytes));
+        p += sizeof(ssl->transform->randbytes);
     }
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     used += 2 + ssl->transform->in_cid_len + ssl->transform->out_cid_len;
-    if( used <= buf_len )
-    {
+    if (used <= buf_len) {
         *p++ = ssl->transform->in_cid_len;
-        memcpy( p, ssl->transform->in_cid, ssl->transform->in_cid_len );
+        memcpy(p, ssl->transform->in_cid, ssl->transform->in_cid_len);
         p += ssl->transform->in_cid_len;
 
         *p++ = ssl->transform->out_cid_len;
-        memcpy( p, ssl->transform->out_cid, ssl->transform->out_cid_len );
+        memcpy(p, ssl->transform->out_cid, ssl->transform->out_cid_len);
         p += ssl->transform->out_cid_len;
     }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
@@ -6439,45 +6314,40 @@
      */
 #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
     used += 4;
-    if( used <= buf_len )
-    {
-        MBEDTLS_PUT_UINT32_BE( ssl->badmac_seen, p, 0 );
+    if (used <= buf_len) {
+        MBEDTLS_PUT_UINT32_BE(ssl->badmac_seen, p, 0);
         p += 4;
     }
 #endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
 
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
     used += 16;
-    if( used <= buf_len )
-    {
-        MBEDTLS_PUT_UINT64_BE( ssl->in_window_top, p, 0 );
+    if (used <= buf_len) {
+        MBEDTLS_PUT_UINT64_BE(ssl->in_window_top, p, 0);
         p += 8;
 
-        MBEDTLS_PUT_UINT64_BE( ssl->in_window, p, 0 );
+        MBEDTLS_PUT_UINT64_BE(ssl->in_window, p, 0);
         p += 8;
     }
 #endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
     used += 1;
-    if( used <= buf_len )
-    {
+    if (used <= buf_len) {
         *p++ = ssl->disable_datagram_packing;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
     used += 8;
-    if( used <= buf_len )
-    {
-        memcpy( p, ssl->cur_out_ctr, 8 );
+    if (used <= buf_len) {
+        memcpy(p, ssl->cur_out_ctr, 8);
         p += 8;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
     used += 2;
-    if( used <= buf_len )
-    {
-        MBEDTLS_PUT_UINT16_BE( ssl->mtu, p, 0 );
+    if (used <= buf_len) {
+        MBEDTLS_PUT_UINT16_BE(ssl->mtu, p, 0);
         p += 2;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
@@ -6485,17 +6355,15 @@
 #if defined(MBEDTLS_SSL_ALPN)
     {
         const uint8_t alpn_len = ssl->alpn_chosen
-                               ? (uint8_t) strlen( ssl->alpn_chosen )
+                               ? (uint8_t) strlen(ssl->alpn_chosen)
                                : 0;
 
         used += 1 + alpn_len;
-        if( used <= buf_len )
-        {
+        if (used <= buf_len) {
             *p++ = alpn_len;
 
-            if( ssl->alpn_chosen != NULL )
-            {
-                memcpy( p, ssl->alpn_chosen, alpn_len );
+            if (ssl->alpn_chosen != NULL) {
+                memcpy(p, ssl->alpn_chosen, alpn_len);
                 p += alpn_len;
             }
         }
@@ -6507,12 +6375,13 @@
      */
     *olen = used;
 
-    if( used > buf_len )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+    if (used > buf_len) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "saved context", buf, used );
+    MBEDTLS_SSL_DEBUG_BUF(4, "saved context", buf, used);
 
-    return( mbedtls_ssl_session_reset_int( ssl, 0 ) );
+    return mbedtls_ssl_session_reset_int(ssl, 0);
 }
 
 /*
@@ -6521,34 +6390,36 @@
  */
 #if defined(MBEDTLS_SHA256_C) || \
     (defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384))
-typedef int (*tls_prf_fn)( const unsigned char *secret, size_t slen,
-                           const char *label,
-                           const unsigned char *random, size_t rlen,
-                           unsigned char *dstbuf, size_t dlen );
-static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id )
+typedef int (*tls_prf_fn)(const unsigned char *secret, size_t slen,
+                          const char *label,
+                          const unsigned char *random, size_t rlen,
+                          unsigned char *dstbuf, size_t dlen);
+static tls_prf_fn ssl_tls12prf_from_cs(int ciphersuite_id)
 {
     const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
-         mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
+        mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
 
-    if( ciphersuite_info == NULL )
-        return( NULL );
+    if (ciphersuite_info == NULL) {
+        return NULL;
+    }
 
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
-    if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
-        return( tls_prf_sha384 );
-    else
+    if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) {
+        return tls_prf_sha384;
+    } else
 #endif
 #if defined(MBEDTLS_SHA256_C)
     {
-        if( ciphersuite_info->mac == MBEDTLS_MD_SHA256 )
-            return( tls_prf_sha256 );
+        if (ciphersuite_info->mac == MBEDTLS_MD_SHA256) {
+            return tls_prf_sha256;
+        }
     }
 #endif
 #if !defined(MBEDTLS_SHA256_C) && \
     (!defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_SHA512_NO_SHA384))
     (void) ciphersuite_info;
 #endif
-    return( NULL );
+    return NULL;
 }
 
 #endif /* MBEDTLS_SHA256_C ||
@@ -6561,9 +6432,9 @@
  * case of error.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_context_load( mbedtls_ssl_context *ssl,
-                             const unsigned char *buf,
-                             size_t len )
+static int ssl_context_load(mbedtls_ssl_context *ssl,
+                            const unsigned char *buf,
+                            size_t len)
 {
     const unsigned char *p = buf;
     const unsigned char * const end = buf + len;
@@ -6577,17 +6448,16 @@
      * (Checking session is useful because it won't be NULL if we're
      * renegotiating, or if the user mistakenly loaded a session first.)
      */
-    if( ssl->state != MBEDTLS_SSL_HELLO_REQUEST ||
-        ssl->session != NULL )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->state != MBEDTLS_SSL_HELLO_REQUEST ||
+        ssl->session != NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     /*
      * We can't check that the config matches the initial one, but we can at
      * least check it matches the requirements for serializing.
      */
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ||
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ||
         ssl->conf->max_major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 ||
         ssl->conf->min_major_ver > MBEDTLS_SSL_MAJOR_VERSION_3 ||
         ssl->conf->max_minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ||
@@ -6595,36 +6465,36 @@
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
         ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED ||
 #endif
-        0 )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        0) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "context to load", buf, len );
+    MBEDTLS_SSL_DEBUG_BUF(4, "context to load", buf, len);
 
     /*
      * Check version identifier
      */
-    if( (size_t)( end - p ) < sizeof( ssl_serialized_context_header ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( memcmp( p, ssl_serialized_context_header,
-                sizeof( ssl_serialized_context_header ) ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_VERSION_MISMATCH );
+    if ((size_t) (end - p) < sizeof(ssl_serialized_context_header)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
-    p += sizeof( ssl_serialized_context_header );
+
+    if (memcmp(p, ssl_serialized_context_header,
+               sizeof(ssl_serialized_context_header)) != 0) {
+        return MBEDTLS_ERR_SSL_VERSION_MISMATCH;
+    }
+    p += sizeof(ssl_serialized_context_header);
 
     /*
      * Session
      */
-    if( (size_t)( end - p ) < 4 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 4) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    session_len = ( (size_t) p[0] << 24 ) |
-                  ( (size_t) p[1] << 16 ) |
-                  ( (size_t) p[2] <<  8 ) |
-                  ( (size_t) p[3]       );
+    session_len = ((size_t) p[0] << 24) |
+                  ((size_t) p[1] << 16) |
+                  ((size_t) p[2] <<  8) |
+                  ((size_t) p[3]);
     p += 4;
 
     /* This has been allocated by ssl_handshake_init(), called by
@@ -6634,14 +6504,14 @@
     ssl->session_out = ssl->session;
     ssl->session_negotiate = NULL;
 
-    if( (size_t)( end - p ) < session_len )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < session_len) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ret = ssl_session_load( ssl->session, 1, p, session_len );
-    if( ret != 0 )
-    {
-        mbedtls_ssl_session_free( ssl->session );
-        return( ret );
+    ret = ssl_session_load(ssl->session, 1, p, session_len);
+    if (ret != 0) {
+        mbedtls_ssl_session_free(ssl->session);
+        return ret;
     }
 
     p += session_len;
@@ -6657,57 +6527,63 @@
     ssl->transform_out = ssl->transform;
     ssl->transform_negotiate = NULL;
 
-    prf_func = ssl_tls12prf_from_cs( ssl->session->ciphersuite );
-    if( prf_func == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    prf_func = ssl_tls12prf_from_cs(ssl->session->ciphersuite);
+    if (prf_func == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     /* Read random bytes and populate structure */
-    if( (size_t)( end - p ) < sizeof( ssl->transform->randbytes ) )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < sizeof(ssl->transform->randbytes)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ret = ssl_populate_transform( ssl->transform,
-                  ssl->session->ciphersuite,
-                  ssl->session->master,
+    ret = ssl_populate_transform(ssl->transform,
+                                 ssl->session->ciphersuite,
+                                 ssl->session->master,
 #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC)
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-                  ssl->session->encrypt_then_mac,
+                                 ssl->session->encrypt_then_mac,
 #endif
 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
-                  ssl->session->trunc_hmac,
+                                 ssl->session->trunc_hmac,
 #endif
 #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-                  ssl->session->compression,
+                                 ssl->session->compression,
 #endif
-                  prf_func,
-                  p, /* currently pointing to randbytes */
-                  MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */
-                  ssl->conf->endpoint,
-                  ssl );
-    if( ret != 0 )
-        return( ret );
+                                 prf_func,
+                                 p, /* currently pointing to randbytes */
+                                 MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */
+                                 ssl->conf->endpoint,
+                                 ssl);
+    if (ret != 0) {
+        return ret;
+    }
 
-    p += sizeof( ssl->transform->randbytes );
+    p += sizeof(ssl->transform->randbytes);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     /* Read connection IDs and store them */
-    if( (size_t)( end - p ) < 1 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 1) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     ssl->transform->in_cid_len = *p++;
 
-    if( (size_t)( end - p ) < ssl->transform->in_cid_len + 1u )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < ssl->transform->in_cid_len + 1u) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    memcpy( ssl->transform->in_cid, p, ssl->transform->in_cid_len );
+    memcpy(ssl->transform->in_cid, p, ssl->transform->in_cid_len);
     p += ssl->transform->in_cid_len;
 
     ssl->transform->out_cid_len = *p++;
 
-    if( (size_t)( end - p ) < ssl->transform->out_cid_len )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < ssl->transform->out_cid_len) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    memcpy( ssl->transform->out_cid, p, ssl->transform->out_cid_len );
+    memcpy(ssl->transform->out_cid, p, ssl->transform->out_cid_len);
     p += ssl->transform->out_cid_len;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
@@ -6715,59 +6591,64 @@
      * Saved fields from top-level ssl_context structure
      */
 #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
-    if( (size_t)( end - p ) < 4 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 4) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ssl->badmac_seen = ( (uint32_t) p[0] << 24 ) |
-                       ( (uint32_t) p[1] << 16 ) |
-                       ( (uint32_t) p[2] <<  8 ) |
-                       ( (uint32_t) p[3]       );
+    ssl->badmac_seen = ((uint32_t) p[0] << 24) |
+                       ((uint32_t) p[1] << 16) |
+                       ((uint32_t) p[2] <<  8) |
+                       ((uint32_t) p[3]);
     p += 4;
 #endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
 
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    if( (size_t)( end - p ) < 16 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 16) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ssl->in_window_top = ( (uint64_t) p[0] << 56 ) |
-                         ( (uint64_t) p[1] << 48 ) |
-                         ( (uint64_t) p[2] << 40 ) |
-                         ( (uint64_t) p[3] << 32 ) |
-                         ( (uint64_t) p[4] << 24 ) |
-                         ( (uint64_t) p[5] << 16 ) |
-                         ( (uint64_t) p[6] <<  8 ) |
-                         ( (uint64_t) p[7]       );
+    ssl->in_window_top = ((uint64_t) p[0] << 56) |
+                         ((uint64_t) p[1] << 48) |
+                         ((uint64_t) p[2] << 40) |
+                         ((uint64_t) p[3] << 32) |
+                         ((uint64_t) p[4] << 24) |
+                         ((uint64_t) p[5] << 16) |
+                         ((uint64_t) p[6] <<  8) |
+                         ((uint64_t) p[7]);
     p += 8;
 
-    ssl->in_window = ( (uint64_t) p[0] << 56 ) |
-                     ( (uint64_t) p[1] << 48 ) |
-                     ( (uint64_t) p[2] << 40 ) |
-                     ( (uint64_t) p[3] << 32 ) |
-                     ( (uint64_t) p[4] << 24 ) |
-                     ( (uint64_t) p[5] << 16 ) |
-                     ( (uint64_t) p[6] <<  8 ) |
-                     ( (uint64_t) p[7]       );
+    ssl->in_window = ((uint64_t) p[0] << 56) |
+                     ((uint64_t) p[1] << 48) |
+                     ((uint64_t) p[2] << 40) |
+                     ((uint64_t) p[3] << 32) |
+                     ((uint64_t) p[4] << 24) |
+                     ((uint64_t) p[5] << 16) |
+                     ((uint64_t) p[6] <<  8) |
+                     ((uint64_t) p[7]);
     p += 8;
 #endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( (size_t)( end - p ) < 1 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 1) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
     ssl->disable_datagram_packing = *p++;
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    if( (size_t)( end - p ) < 8 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 8) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    memcpy( ssl->cur_out_ctr, p, 8 );
+    memcpy(ssl->cur_out_ctr, p, 8);
     p += 8;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( (size_t)( end - p ) < 2 )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if ((size_t) (end - p) < 2) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    ssl->mtu = ( p[0] << 8 ) | p[1];
+    ssl->mtu = (p[0] << 8) | p[1];
     p += 2;
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
@@ -6776,19 +6657,17 @@
         uint8_t alpn_len;
         const char **cur;
 
-        if( (size_t)( end - p ) < 1 )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if ((size_t) (end - p) < 1) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
         alpn_len = *p++;
 
-        if( alpn_len != 0 && ssl->conf->alpn_list != NULL )
-        {
+        if (alpn_len != 0 && ssl->conf->alpn_list != NULL) {
             /* alpn_chosen should point to an item in the configured list */
-            for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ )
-            {
-                if( strlen( *cur ) == alpn_len &&
-                    memcmp( p, cur, alpn_len ) == 0 )
-                {
+            for (cur = ssl->conf->alpn_list; *cur != NULL; cur++) {
+                if (strlen(*cur) == alpn_len &&
+                    memcmp(p, cur, alpn_len) == 0) {
                     ssl->alpn_chosen = *cur;
                     break;
                 }
@@ -6796,8 +6675,9 @@
         }
 
         /* can only happen on conf mismatch */
-        if( alpn_len != 0 && ssl->alpn_chosen == NULL )
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (alpn_len != 0 && ssl->alpn_chosen == NULL) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
 
         p += alpn_len;
     }
@@ -6816,7 +6696,7 @@
 
     /* Adjust pointers for header fields of outgoing records to
      * the given transform, accounting for explicit IV and CID. */
-    mbedtls_ssl_update_out_pointers( ssl, ssl->transform );
+    mbedtls_ssl_update_out_pointers(ssl, ssl->transform);
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
     ssl->in_epoch = 1;
@@ -6826,137 +6706,131 @@
      * which we don't want - otherwise we'd end up freeing the wrong transform
      * by calling mbedtls_ssl_handshake_wrapup_free_hs_transform()
      * inappropriately. */
-    if( ssl->handshake != NULL )
-    {
-        mbedtls_ssl_handshake_free( ssl );
-        mbedtls_free( ssl->handshake );
+    if (ssl->handshake != NULL) {
+        mbedtls_ssl_handshake_free(ssl);
+        mbedtls_free(ssl->handshake);
         ssl->handshake = NULL;
     }
 
     /*
      * Done - should have consumed entire buffer
      */
-    if( p != end )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (p != end) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Deserialize context: public wrapper for error cleaning
  */
-int mbedtls_ssl_context_load( mbedtls_ssl_context *context,
-                              const unsigned char *buf,
-                              size_t len )
+int mbedtls_ssl_context_load(mbedtls_ssl_context *context,
+                             const unsigned char *buf,
+                             size_t len)
 {
-    int ret = ssl_context_load( context, buf, len );
+    int ret = ssl_context_load(context, buf, len);
 
-    if( ret != 0 )
-        mbedtls_ssl_free( context );
+    if (ret != 0) {
+        mbedtls_ssl_free(context);
+    }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_SSL_CONTEXT_SERIALIZATION */
 
 /*
  * Free an SSL context
  */
-void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_free(mbedtls_ssl_context *ssl)
 {
-    if( ssl == NULL )
+    if (ssl == NULL) {
         return;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> free"));
 
-    if( ssl->out_buf != NULL )
-    {
+    if (ssl->out_buf != NULL) {
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
         size_t out_buf_len = ssl->out_buf_len;
 #else
         size_t out_buf_len = MBEDTLS_SSL_OUT_BUFFER_LEN;
 #endif
 
-        mbedtls_platform_zeroize( ssl->out_buf, out_buf_len );
-        mbedtls_free( ssl->out_buf );
+        mbedtls_platform_zeroize(ssl->out_buf, out_buf_len);
+        mbedtls_free(ssl->out_buf);
         ssl->out_buf = NULL;
     }
 
-    if( ssl->in_buf != NULL )
-    {
+    if (ssl->in_buf != NULL) {
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
         size_t in_buf_len = ssl->in_buf_len;
 #else
         size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN;
 #endif
 
-        mbedtls_platform_zeroize( ssl->in_buf, in_buf_len );
-        mbedtls_free( ssl->in_buf );
+        mbedtls_platform_zeroize(ssl->in_buf, in_buf_len);
+        mbedtls_free(ssl->in_buf);
         ssl->in_buf = NULL;
     }
 
 #if defined(MBEDTLS_ZLIB_SUPPORT)
-    if( ssl->compress_buf != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
-        mbedtls_free( ssl->compress_buf );
+    if (ssl->compress_buf != NULL) {
+        mbedtls_platform_zeroize(ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN);
+        mbedtls_free(ssl->compress_buf);
     }
 #endif
 
-    if( ssl->transform )
-    {
-        mbedtls_ssl_transform_free( ssl->transform );
-        mbedtls_free( ssl->transform );
+    if (ssl->transform) {
+        mbedtls_ssl_transform_free(ssl->transform);
+        mbedtls_free(ssl->transform);
     }
 
-    if( ssl->handshake )
-    {
-        mbedtls_ssl_handshake_free( ssl );
-        mbedtls_ssl_transform_free( ssl->transform_negotiate );
-        mbedtls_ssl_session_free( ssl->session_negotiate );
+    if (ssl->handshake) {
+        mbedtls_ssl_handshake_free(ssl);
+        mbedtls_ssl_transform_free(ssl->transform_negotiate);
+        mbedtls_ssl_session_free(ssl->session_negotiate);
 
-        mbedtls_free( ssl->handshake );
-        mbedtls_free( ssl->transform_negotiate );
-        mbedtls_free( ssl->session_negotiate );
+        mbedtls_free(ssl->handshake);
+        mbedtls_free(ssl->transform_negotiate);
+        mbedtls_free(ssl->session_negotiate);
     }
 
-    if( ssl->session )
-    {
-        mbedtls_ssl_session_free( ssl->session );
-        mbedtls_free( ssl->session );
+    if (ssl->session) {
+        mbedtls_ssl_session_free(ssl->session);
+        mbedtls_free(ssl->session);
     }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-    if( ssl->hostname != NULL )
-    {
-        mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
-        mbedtls_free( ssl->hostname );
+    if (ssl->hostname != NULL) {
+        mbedtls_platform_zeroize(ssl->hostname, strlen(ssl->hostname));
+        mbedtls_free(ssl->hostname);
     }
 #endif
 
 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
-    if( mbedtls_ssl_hw_record_finish != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) );
-        mbedtls_ssl_hw_record_finish( ssl );
+    if (mbedtls_ssl_hw_record_finish != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_finish()"));
+        mbedtls_ssl_hw_record_finish(ssl);
     }
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
-    mbedtls_free( ssl->cli_id );
+    mbedtls_free(ssl->cli_id);
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= free"));
 
     /* Actually clear after last debug message */
-    mbedtls_platform_zeroize( ssl, sizeof( mbedtls_ssl_context ) );
+    mbedtls_platform_zeroize(ssl, sizeof(mbedtls_ssl_context));
 }
 
 /*
  * Initialize mbedtls_ssl_config
  */
-void mbedtls_ssl_config_init( mbedtls_ssl_config *conf )
+void mbedtls_ssl_config_init(mbedtls_ssl_config *conf)
 {
-    memset( conf, 0, sizeof( mbedtls_ssl_config ) );
+    memset(conf, 0, sizeof(mbedtls_ssl_config));
 }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
@@ -7007,8 +6881,8 @@
 /*
  * Load default in mbedtls_ssl_config
  */
-int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
-                                 int endpoint, int transport, int preset )
+int mbedtls_ssl_config_defaults(mbedtls_ssl_config *conf,
+                                int endpoint, int transport, int preset)
 {
 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -7016,15 +6890,14 @@
 
     /* Use the functions here so that they are covered in tests,
      * but otherwise access member directly for efficiency */
-    mbedtls_ssl_conf_endpoint( conf, endpoint );
-    mbedtls_ssl_conf_transport( conf, transport );
+    mbedtls_ssl_conf_endpoint(conf, endpoint);
+    mbedtls_ssl_conf_transport(conf, transport);
 
     /*
      * Things that are common to all presets
      */
 #if defined(MBEDTLS_SSL_CLI_C)
-    if( endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
+    if (endpoint == MBEDTLS_SSL_IS_CLIENT) {
         conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED;
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
         conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED;
@@ -7068,32 +6941,29 @@
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT;
-    memset( conf->renego_period,     0x00, 2 );
-    memset( conf->renego_period + 2, 0xFF, 6 );
+    memset(conf->renego_period,     0x00, 2);
+    memset(conf->renego_period + 2, 0xFF, 6);
 #endif
 
 #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
-            if( endpoint == MBEDTLS_SSL_IS_SERVER )
-            {
-                const unsigned char dhm_p[] =
-                    MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
-                const unsigned char dhm_g[] =
-                    MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
+    if (endpoint == MBEDTLS_SSL_IS_SERVER) {
+        const unsigned char dhm_p[] =
+            MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
+        const unsigned char dhm_g[] =
+            MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
 
-                if ( ( ret = mbedtls_ssl_conf_dh_param_bin( conf,
-                                               dhm_p, sizeof( dhm_p ),
-                                               dhm_g, sizeof( dhm_g ) ) ) != 0 )
-                {
-                    return( ret );
-                }
-            }
+        if ((ret = mbedtls_ssl_conf_dh_param_bin(conf,
+                                                 dhm_p, sizeof(dhm_p),
+                                                 dhm_g, sizeof(dhm_g))) != 0) {
+            return ret;
+        }
+    }
 #endif
 
     /*
      * Preset-specific defaults
      */
-    switch( preset )
-    {
+    switch (preset) {
         /*
          * NSA Suite B
          */
@@ -7104,10 +6974,10 @@
             conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
 
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
-                                   ssl_preset_suiteb_ciphersuites;
+                conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
+                    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
+                        conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
+                            ssl_preset_suiteb_ciphersuites;
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
             conf->cert_profile = &mbedtls_x509_crt_profile_suiteb;
@@ -7126,27 +6996,28 @@
          * Default
          */
         default:
-            conf->min_major_ver = ( MBEDTLS_SSL_MIN_MAJOR_VERSION >
-                                    MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION ) ?
-                                    MBEDTLS_SSL_MIN_MAJOR_VERSION :
-                                    MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION;
-            conf->min_minor_ver = ( MBEDTLS_SSL_MIN_MINOR_VERSION >
-                                    MBEDTLS_SSL_MIN_VALID_MINOR_VERSION ) ?
-                                    MBEDTLS_SSL_MIN_MINOR_VERSION :
-                                    MBEDTLS_SSL_MIN_VALID_MINOR_VERSION;
+            conf->min_major_ver = (MBEDTLS_SSL_MIN_MAJOR_VERSION >
+                                   MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION) ?
+                                  MBEDTLS_SSL_MIN_MAJOR_VERSION :
+                                  MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION;
+            conf->min_minor_ver = (MBEDTLS_SSL_MIN_MINOR_VERSION >
+                                   MBEDTLS_SSL_MIN_VALID_MINOR_VERSION) ?
+                                  MBEDTLS_SSL_MIN_MINOR_VERSION :
+                                  MBEDTLS_SSL_MIN_VALID_MINOR_VERSION;
             conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
             conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-            if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+            if (transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
                 conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2;
+            }
 #endif
 
             conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
-            conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
-                                   mbedtls_ssl_list_ciphersuites();
+                conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
+                    conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
+                        conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
+                            mbedtls_ssl_list_ciphersuites();
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
             conf->cert_profile = &mbedtls_x509_crt_profile_default;
@@ -7165,89 +7036,88 @@
 #endif
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Free mbedtls_ssl_config
  */
-void mbedtls_ssl_config_free( mbedtls_ssl_config *conf )
+void mbedtls_ssl_config_free(mbedtls_ssl_config *conf)
 {
 #if defined(MBEDTLS_DHM_C)
-    mbedtls_mpi_free( &conf->dhm_P );
-    mbedtls_mpi_free( &conf->dhm_G );
+    mbedtls_mpi_free(&conf->dhm_P);
+    mbedtls_mpi_free(&conf->dhm_G);
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
-    if( conf->psk != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk, conf->psk_len );
-        mbedtls_free( conf->psk );
+    if (conf->psk != NULL) {
+        mbedtls_platform_zeroize(conf->psk, conf->psk_len);
+        mbedtls_free(conf->psk);
         conf->psk = NULL;
         conf->psk_len = 0;
     }
 
-    if( conf->psk_identity != NULL )
-    {
-        mbedtls_platform_zeroize( conf->psk_identity, conf->psk_identity_len );
-        mbedtls_free( conf->psk_identity );
+    if (conf->psk_identity != NULL) {
+        mbedtls_platform_zeroize(conf->psk_identity, conf->psk_identity_len);
+        mbedtls_free(conf->psk_identity);
         conf->psk_identity = NULL;
         conf->psk_identity_len = 0;
     }
 #endif
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-    ssl_key_cert_free( conf->key_cert );
+    ssl_key_cert_free(conf->key_cert);
 #endif
 
-    mbedtls_platform_zeroize( conf, sizeof( mbedtls_ssl_config ) );
+    mbedtls_platform_zeroize(conf, sizeof(mbedtls_ssl_config));
 }
 
 #if defined(MBEDTLS_PK_C) && \
-    ( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) )
+    (defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C))
 /*
  * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX
  */
-unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk )
+unsigned char mbedtls_ssl_sig_from_pk(mbedtls_pk_context *pk)
 {
 #if defined(MBEDTLS_RSA_C)
-    if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) )
-        return( MBEDTLS_SSL_SIG_RSA );
+    if (mbedtls_pk_can_do(pk, MBEDTLS_PK_RSA)) {
+        return MBEDTLS_SSL_SIG_RSA;
+    }
 #endif
 #if defined(MBEDTLS_ECDSA_C)
-    if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) )
-        return( MBEDTLS_SSL_SIG_ECDSA );
+    if (mbedtls_pk_can_do(pk, MBEDTLS_PK_ECDSA)) {
+        return MBEDTLS_SSL_SIG_ECDSA;
+    }
 #endif
-    return( MBEDTLS_SSL_SIG_ANON );
+    return MBEDTLS_SSL_SIG_ANON;
 }
 
-unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type )
+unsigned char mbedtls_ssl_sig_from_pk_alg(mbedtls_pk_type_t type)
 {
-    switch( type ) {
+    switch (type) {
         case MBEDTLS_PK_RSA:
-            return( MBEDTLS_SSL_SIG_RSA );
+            return MBEDTLS_SSL_SIG_RSA;
         case MBEDTLS_PK_ECDSA:
         case MBEDTLS_PK_ECKEY:
-            return( MBEDTLS_SSL_SIG_ECDSA );
+            return MBEDTLS_SSL_SIG_ECDSA;
         default:
-            return( MBEDTLS_SSL_SIG_ANON );
+            return MBEDTLS_SSL_SIG_ANON;
     }
 }
 
-mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig )
+mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig(unsigned char sig)
 {
-    switch( sig )
-    {
+    switch (sig) {
 #if defined(MBEDTLS_RSA_C)
         case MBEDTLS_SSL_SIG_RSA:
-            return( MBEDTLS_PK_RSA );
+            return MBEDTLS_PK_RSA;
 #endif
 #if defined(MBEDTLS_ECDSA_C)
         case MBEDTLS_SSL_SIG_ECDSA:
-            return( MBEDTLS_PK_ECDSA );
+            return MBEDTLS_PK_ECDSA;
 #endif
         default:
-            return( MBEDTLS_PK_NONE );
+            return MBEDTLS_PK_NONE;
     }
 }
 #endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */
@@ -7256,35 +7126,35 @@
     defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
 
 /* Find an entry in a signature-hash set matching a given hash algorithm. */
-mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set,
-                                                 mbedtls_pk_type_t sig_alg )
+mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find(mbedtls_ssl_sig_hash_set_t *set,
+                                                mbedtls_pk_type_t sig_alg)
 {
-    switch( sig_alg )
-    {
+    switch (sig_alg) {
         case MBEDTLS_PK_RSA:
-            return( set->rsa );
+            return set->rsa;
         case MBEDTLS_PK_ECDSA:
-            return( set->ecdsa );
+            return set->ecdsa;
         default:
-            return( MBEDTLS_MD_NONE );
+            return MBEDTLS_MD_NONE;
     }
 }
 
 /* Add a signature-hash-pair to a signature-hash set */
-void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set,
-                                   mbedtls_pk_type_t sig_alg,
-                                   mbedtls_md_type_t md_alg )
+void mbedtls_ssl_sig_hash_set_add(mbedtls_ssl_sig_hash_set_t *set,
+                                  mbedtls_pk_type_t sig_alg,
+                                  mbedtls_md_type_t md_alg)
 {
-    switch( sig_alg )
-    {
+    switch (sig_alg) {
         case MBEDTLS_PK_RSA:
-            if( set->rsa == MBEDTLS_MD_NONE )
+            if (set->rsa == MBEDTLS_MD_NONE) {
                 set->rsa = md_alg;
+            }
             break;
 
         case MBEDTLS_PK_ECDSA:
-            if( set->ecdsa == MBEDTLS_MD_NONE )
+            if (set->ecdsa == MBEDTLS_MD_NONE) {
                 set->ecdsa = md_alg;
+            }
             break;
 
         default:
@@ -7293,8 +7163,8 @@
 }
 
 /* Allow exactly one hash algorithm for each signature. */
-void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set,
-                                          mbedtls_md_type_t md_alg )
+void mbedtls_ssl_sig_hash_set_const_hash(mbedtls_ssl_sig_hash_set_t *set,
+                                         mbedtls_md_type_t md_alg)
 {
     set->rsa   = md_alg;
     set->ecdsa = md_alg;
@@ -7306,68 +7176,66 @@
 /*
  * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX
  */
-mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash )
+mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash(unsigned char hash)
 {
-    switch( hash )
-    {
+    switch (hash) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_SSL_HASH_MD5:
-            return( MBEDTLS_MD_MD5 );
+            return MBEDTLS_MD_MD5;
 #endif
 #if defined(MBEDTLS_SHA1_C)
         case MBEDTLS_SSL_HASH_SHA1:
-            return( MBEDTLS_MD_SHA1 );
+            return MBEDTLS_MD_SHA1;
 #endif
 #if defined(MBEDTLS_SHA256_C)
         case MBEDTLS_SSL_HASH_SHA224:
-            return( MBEDTLS_MD_SHA224 );
+            return MBEDTLS_MD_SHA224;
         case MBEDTLS_SSL_HASH_SHA256:
-            return( MBEDTLS_MD_SHA256 );
+            return MBEDTLS_MD_SHA256;
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
         case MBEDTLS_SSL_HASH_SHA384:
-            return( MBEDTLS_MD_SHA384 );
+            return MBEDTLS_MD_SHA384;
 #endif
 #if defined(MBEDTLS_SHA512_C)
         case MBEDTLS_SSL_HASH_SHA512:
-            return( MBEDTLS_MD_SHA512 );
+            return MBEDTLS_MD_SHA512;
 #endif
         default:
-            return( MBEDTLS_MD_NONE );
+            return MBEDTLS_MD_NONE;
     }
 }
 
 /*
  * Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX
  */
-unsigned char mbedtls_ssl_hash_from_md_alg( int md )
+unsigned char mbedtls_ssl_hash_from_md_alg(int md)
 {
-    switch( md )
-    {
+    switch (md) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
-            return( MBEDTLS_SSL_HASH_MD5 );
+            return MBEDTLS_SSL_HASH_MD5;
 #endif
 #if defined(MBEDTLS_SHA1_C)
         case MBEDTLS_MD_SHA1:
-            return( MBEDTLS_SSL_HASH_SHA1 );
+            return MBEDTLS_SSL_HASH_SHA1;
 #endif
 #if defined(MBEDTLS_SHA256_C)
         case MBEDTLS_MD_SHA224:
-            return( MBEDTLS_SSL_HASH_SHA224 );
+            return MBEDTLS_SSL_HASH_SHA224;
         case MBEDTLS_MD_SHA256:
-            return( MBEDTLS_SSL_HASH_SHA256 );
+            return MBEDTLS_SSL_HASH_SHA256;
 #endif
 #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
         case MBEDTLS_MD_SHA384:
-            return( MBEDTLS_SSL_HASH_SHA384 );
+            return MBEDTLS_SSL_HASH_SHA384;
 #endif
 #if defined(MBEDTLS_SHA512_C)
         case MBEDTLS_MD_SHA512:
-            return( MBEDTLS_SSL_HASH_SHA512 );
+            return MBEDTLS_SSL_HASH_SHA512;
 #endif
         default:
-            return( MBEDTLS_SSL_HASH_NONE );
+            return MBEDTLS_SSL_HASH_NONE;
     }
 }
 
@@ -7376,30 +7244,34 @@
  * Check if a curve proposed by the peer is in our list.
  * Return 0 if we're willing to use it, -1 otherwise.
  */
-int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id )
+int mbedtls_ssl_check_curve(const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id)
 {
     const mbedtls_ecp_group_id *gid;
 
-    if( ssl->conf->curve_list == NULL )
-        return( -1 );
+    if (ssl->conf->curve_list == NULL) {
+        return -1;
+    }
 
-    for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ )
-        if( *gid == grp_id )
-            return( 0 );
+    for (gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++) {
+        if (*gid == grp_id) {
+            return 0;
+        }
+    }
 
-    return( -1 );
+    return -1;
 }
 
 /*
  * Same as mbedtls_ssl_check_curve() but takes a TLS ID for the curve.
  */
-int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls_id )
+int mbedtls_ssl_check_curve_tls_id(const mbedtls_ssl_context *ssl, uint16_t tls_id)
 {
     const mbedtls_ecp_curve_info *curve_info =
-        mbedtls_ecp_curve_info_from_tls_id( tls_id );
-    if( curve_info == NULL )
-        return( -1 );
-    return( mbedtls_ssl_check_curve( ssl, curve_info->grp_id ) );
+        mbedtls_ecp_curve_info_from_tls_id(tls_id);
+    if (curve_info == NULL) {
+        return -1;
+    }
+    return mbedtls_ssl_check_curve(ssl, curve_info->grp_id);
 }
 #endif /* MBEDTLS_ECP_C */
 
@@ -7408,27 +7280,30 @@
  * Check if a hash proposed by the peer is in our list.
  * Return 0 if we're willing to use it, -1 otherwise.
  */
-int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
-                                mbedtls_md_type_t md )
+int mbedtls_ssl_check_sig_hash(const mbedtls_ssl_context *ssl,
+                               mbedtls_md_type_t md)
 {
     const int *cur;
 
-    if( ssl->conf->sig_hashes == NULL )
-        return( -1 );
+    if (ssl->conf->sig_hashes == NULL) {
+        return -1;
+    }
 
-    for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ )
-        if( *cur == (int) md )
-            return( 0 );
+    for (cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++) {
+        if (*cur == (int) md) {
+            return 0;
+        }
+    }
 
-    return( -1 );
+    return -1;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert,
-                          const mbedtls_ssl_ciphersuite_t *ciphersuite,
-                          int cert_endpoint,
-                          uint32_t *flags )
+int mbedtls_ssl_check_cert_usage(const mbedtls_x509_crt *cert,
+                                 const mbedtls_ssl_ciphersuite_t *ciphersuite,
+                                 int cert_endpoint,
+                                 uint32_t *flags)
 {
     int ret = 0;
 #if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
@@ -7447,11 +7322,9 @@
 #endif
 
 #if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
-    if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
+    if (cert_endpoint == MBEDTLS_SSL_IS_SERVER) {
         /* Server part of the key exchange */
-        switch( ciphersuite->key_exchange )
-        {
+        switch (ciphersuite->key_exchange) {
             case MBEDTLS_KEY_EXCHANGE_RSA:
             case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
                 usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT;
@@ -7476,15 +7349,12 @@
             case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
                 usage = 0;
         }
-    }
-    else
-    {
+    } else {
         /* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */
         usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
     }
 
-    if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 )
-    {
+    if (mbedtls_x509_crt_check_key_usage(cert, usage) != 0) {
         *flags |= MBEDTLS_X509_BADCERT_KEY_USAGE;
         ret = -1;
     }
@@ -7493,36 +7363,32 @@
 #endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
 
 #if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
-    if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
-    {
+    if (cert_endpoint == MBEDTLS_SSL_IS_SERVER) {
         ext_oid = MBEDTLS_OID_SERVER_AUTH;
-        ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH );
-    }
-    else
-    {
+        ext_len = MBEDTLS_OID_SIZE(MBEDTLS_OID_SERVER_AUTH);
+    } else {
         ext_oid = MBEDTLS_OID_CLIENT_AUTH;
-        ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH );
+        ext_len = MBEDTLS_OID_SIZE(MBEDTLS_OID_CLIENT_AUTH);
     }
 
-    if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 )
-    {
+    if (mbedtls_x509_crt_check_extended_key_usage(cert, ext_oid, ext_len) != 0) {
         *flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE;
         ret = -1;
     }
 #endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
-int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md )
+int mbedtls_ssl_set_calc_verify_md(mbedtls_ssl_context *ssl, int md)
 {
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
+    if (ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3) {
         return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
+    }
 
-    switch( md )
-    {
+    switch (md) {
 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_SSL_HASH_MD5:
@@ -7559,16 +7425,16 @@
 
 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
     defined(MBEDTLS_SSL_PROTO_TLS1_1)
-int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
-                                        unsigned char *output,
-                                        unsigned char *data, size_t data_len )
+int mbedtls_ssl_get_key_exchange_md_ssl_tls(mbedtls_ssl_context *ssl,
+                                            unsigned char *output,
+                                            unsigned char *data, size_t data_len)
 {
     int ret = 0;
     mbedtls_md5_context mbedtls_md5;
     mbedtls_sha1_context mbedtls_sha1;
 
-    mbedtls_md5_init( &mbedtls_md5 );
-    mbedtls_sha1_init( &mbedtls_sha1 );
+    mbedtls_md5_init(&mbedtls_md5);
+    mbedtls_sha1_init(&mbedtls_sha1);
 
     /*
      * digitally-signed struct {
@@ -7583,61 +7449,54 @@
      *     SHA(ClientHello.random + ServerHello.random
      *                            + ServerParams);
      */
-    if( ( ret = mbedtls_md5_starts_ret( &mbedtls_md5 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_starts_ret", ret );
+    if ((ret = mbedtls_md5_starts_ret(&mbedtls_md5)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_starts_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5,
-                                        ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
+    if ((ret = mbedtls_md5_update_ret(&mbedtls_md5,
+                                      ssl->handshake->randbytes, 64)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_update_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, data, data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
+    if ((ret = mbedtls_md5_update_ret(&mbedtls_md5, data, data_len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_update_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md5_finish_ret( &mbedtls_md5, output ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_finish_ret", ret );
+    if ((ret = mbedtls_md5_finish_ret(&mbedtls_md5, output)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_finish_ret", ret);
         goto exit;
     }
 
-    if( ( ret = mbedtls_sha1_starts_ret( &mbedtls_sha1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_starts_ret", ret );
+    if ((ret = mbedtls_sha1_starts_ret(&mbedtls_sha1)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_starts_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1,
-                                         ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
+    if ((ret = mbedtls_sha1_update_ret(&mbedtls_sha1,
+                                       ssl->handshake->randbytes, 64)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_update_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, data,
-                                         data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
+    if ((ret = mbedtls_sha1_update_ret(&mbedtls_sha1, data,
+                                       data_len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_update_ret", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_sha1_finish_ret( &mbedtls_sha1,
-                                         output + 16 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_finish_ret", ret );
+    if ((ret = mbedtls_sha1_finish_ret(&mbedtls_sha1,
+                                       output + 16)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_finish_ret", ret);
         goto exit;
     }
 
 exit:
-    mbedtls_md5_free( &mbedtls_md5 );
-    mbedtls_sha1_free( &mbedtls_sha1 );
+    mbedtls_md5_free(&mbedtls_md5);
+    mbedtls_sha1_free(&mbedtls_sha1);
 
-    if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+    if (ret != 0) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
+    }
 
-    return( ret );
+    return ret;
 
 }
 #endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
@@ -7647,81 +7506,75 @@
     defined(MBEDTLS_SSL_PROTO_TLS1_2)
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
-                                            unsigned char *hash, size_t *hashlen,
-                                            unsigned char *data, size_t data_len,
-                                            mbedtls_md_type_t md_alg )
+int mbedtls_ssl_get_key_exchange_md_tls1_2(mbedtls_ssl_context *ssl,
+                                           unsigned char *hash, size_t *hashlen,
+                                           unsigned char *data, size_t data_len,
+                                           mbedtls_md_type_t md_alg)
 {
     psa_status_t status;
     psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg );
+    psa_algorithm_t hash_alg = mbedtls_psa_translate_md(md_alg);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("Perform PSA-based computation of digest of ServerKeyExchange"));
 
-    if( ( status = psa_hash_setup( &hash_operation,
-                                   hash_alg ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_setup", status );
+    if ((status = psa_hash_setup(&hash_operation,
+                                 hash_alg)) != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_setup", status);
         goto exit;
     }
 
-    if( ( status = psa_hash_update( &hash_operation, ssl->handshake->randbytes,
-                                    64 ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
+    if ((status = psa_hash_update(&hash_operation, ssl->handshake->randbytes,
+                                  64)) != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_update", status);
         goto exit;
     }
 
-    if( ( status = psa_hash_update( &hash_operation,
-                                    data, data_len ) ) != PSA_SUCCESS )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
+    if ((status = psa_hash_update(&hash_operation,
+                                  data, data_len)) != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_update", status);
         goto exit;
     }
 
-    if( ( status = psa_hash_finish( &hash_operation, hash, PSA_HASH_MAX_SIZE,
-                                    hashlen ) ) != PSA_SUCCESS )
-    {
-         MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_finish", status );
-         goto exit;
+    if ((status = psa_hash_finish(&hash_operation, hash, PSA_HASH_MAX_SIZE,
+                                  hashlen)) != PSA_SUCCESS) {
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_finish", status);
+        goto exit;
     }
 
 exit:
-    if( status != PSA_SUCCESS )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        switch( status )
-        {
+    if (status != PSA_SUCCESS) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
+        switch (status) {
             case PSA_ERROR_NOT_SUPPORTED:
-                return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
+                return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
             case PSA_ERROR_BAD_STATE: /* Intentional fallthrough */
             case PSA_ERROR_BUFFER_TOO_SMALL:
-                return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
+                return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
             case PSA_ERROR_INSUFFICIENT_MEMORY:
-                return( MBEDTLS_ERR_MD_ALLOC_FAILED );
+                return MBEDTLS_ERR_MD_ALLOC_FAILED;
             default:
-                return( MBEDTLS_ERR_MD_HW_ACCEL_FAILED );
+                return MBEDTLS_ERR_MD_HW_ACCEL_FAILED;
         }
     }
-    return( 0 );
+    return 0;
 }
 
 #else
 
-int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
-                                            unsigned char *hash, size_t *hashlen,
-                                            unsigned char *data, size_t data_len,
-                                            mbedtls_md_type_t md_alg )
+int mbedtls_ssl_get_key_exchange_md_tls1_2(mbedtls_ssl_context *ssl,
+                                           unsigned char *hash, size_t *hashlen,
+                                           unsigned char *data, size_t data_len,
+                                           mbedtls_md_type_t md_alg)
 {
     int ret = 0;
     mbedtls_md_context_t ctx;
-    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
-    *hashlen = mbedtls_md_get_size( md_info );
+    const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_alg);
+    *hashlen = mbedtls_md_get_size(md_info);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform mbedtls-based computation of digest of ServerKeyExchange" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("Perform mbedtls-based computation of digest of ServerKeyExchange"));
 
-    mbedtls_md_init( &ctx );
+    mbedtls_md_init(&ctx);
 
     /*
      * digitally-signed struct {
@@ -7730,40 +7583,36 @@
      *     ServerDHParams params;
      * };
      */
-    if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
+    if ((ret = mbedtls_md_setup(&ctx, md_info, 0)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_setup", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_starts", ret );
+    if ((ret = mbedtls_md_starts(&ctx)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_starts", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
+    if ((ret = mbedtls_md_update(&ctx, ssl->handshake->randbytes, 64)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_update", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md_update( &ctx, data, data_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
+    if ((ret = mbedtls_md_update(&ctx, data, data_len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_update", ret);
         goto exit;
     }
-    if( ( ret = mbedtls_md_finish( &ctx, hash ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_finish", ret );
+    if ((ret = mbedtls_md_finish(&ctx, hash)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_finish", ret);
         goto exit;
     }
 
 exit:
-    mbedtls_md_free( &ctx );
+    mbedtls_md_free(&ctx);
 
-    if( ret != 0 )
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+    if (ret != 0) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
+    }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */