Add ability to test failing vrfy callback
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 8c8e17b..b06188a 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -1240,71 +1240,71 @@
 
 X509 CRT verify chain #1 (zero pathlen intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert14.crt data_files/dir4/cert13.crt data_files/dir4/cert12.crt":"data_files/dir4/cert11.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert14.crt data_files/dir4/cert13.crt data_files/dir4/cert12.crt":"data_files/dir4/cert11.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"":0
 
 X509 CRT verify chain #2 (zero pathlen root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert23.crt data_files/dir4/cert22.crt":"data_files/dir4/cert21.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert23.crt data_files/dir4/cert22.crt":"data_files/dir4/cert21.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"":0
 
 X509 CRT verify chain #3 (nonzero pathlen root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert34.crt data_files/dir4/cert33.crt data_files/dir4/cert32.crt":"data_files/dir4/cert31.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert34.crt data_files/dir4/cert33.crt data_files/dir4/cert32.crt":"data_files/dir4/cert31.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"":0
 
 X509 CRT verify chain #4 (nonzero pathlen intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert45.crt data_files/dir4/cert44.crt data_files/dir4/cert43.crt data_files/dir4/cert42.crt":"data_files/dir4/cert41.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert45.crt data_files/dir4/cert44.crt data_files/dir4/cert43.crt data_files/dir4/cert42.crt":"data_files/dir4/cert41.crt":MBEDTLS_X509_BADCERT_NOT_TRUSTED:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"":0
 
 X509 CRT verify chain #5 (nonzero maxpathlen intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert54.crt data_files/dir4/cert53.crt data_files/dir4/cert52.crt":"data_files/dir4/cert51.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert54.crt data_files/dir4/cert53.crt data_files/dir4/cert52.crt":"data_files/dir4/cert51.crt":0:0:"":0
 
 X509 CRT verify chain #6 (nonzero maxpathlen root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0:0:"":0
 
 X509 CRT verify chain #7 (maxpathlen root, self signed in path)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert74.crt data_files/dir4/cert73.crt data_files/dir4/cert72.crt":"data_files/dir4/cert71.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert74.crt data_files/dir4/cert73.crt data_files/dir4/cert72.crt":"data_files/dir4/cert71.crt":0:0:"":0
 
 X509 CRT verify chain #8 (self signed maxpathlen root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert61.crt data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert61.crt data_files/dir4/cert63.crt data_files/dir4/cert62.crt":"data_files/dir4/cert61.crt":0:0:"":0
 
 X509 CRT verify chain #9 (zero pathlen first intermediate, valid)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert83.crt data_files/dir4/cert82.crt":"data_files/dir4/cert81.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert83.crt data_files/dir4/cert82.crt":"data_files/dir4/cert81.crt":0:0:"":0
 
 X509 CRT verify chain #10 (zero pathlen root, valid)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert92.crt":"data_files/dir4/cert91.crt":0:0:""
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert92.crt":"data_files/dir4/cert91.crt":0:0:"":0
 
 X509 CRT verify chain #11 (valid chain, missing profile)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/dir4/cert92.crt":"data_files/dir4/cert91.crt":-1:MBEDTLS_ERR_X509_BAD_INPUT_DATA:"nonesuch"
+mbedtls_x509_crt_verify_chain:"data_files/dir4/cert92.crt":"data_files/dir4/cert91.crt":-1:MBEDTLS_ERR_X509_BAD_INPUT_DATA:"nonesuch":0
 
 X509 CRT verify chain #12 (suiteb profile, RSA root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/server3.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"suiteb"
+mbedtls_x509_crt_verify_chain:"data_files/server3.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"suiteb":0
 
 X509 CRT verify chain #13 (RSA only profile, EC root)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/server4.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072"
+mbedtls_x509_crt_verify_chain:"data_files/server4.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072":0
 
 X509 CRT verify chain #14 (RSA-3072 profile, root key too small)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C
-mbedtls_x509_crt_verify_chain:"data_files/server1.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072"
+mbedtls_x509_crt_verify_chain:"data_files/server1.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_MD|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072":0
 
 X509 CRT verify chain #15 (suiteb profile, rsa intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/server7.crt data_files/test-int-ca.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_PK:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"suiteb"
+mbedtls_x509_crt_verify_chain:"data_files/server7.crt data_files/test-int-ca.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_PK:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"suiteb":0
 
 X509 CRT verify chain #16 (RSA-only profile, EC intermediate)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/server8.crt data_files/test-int-ca2.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072"
+mbedtls_x509_crt_verify_chain:"data_files/server8.crt data_files/test-int-ca2.crt":"data_files/test-ca.crt":MBEDTLS_X509_BADCERT_BAD_PK|MBEDTLS_X509_BADCERT_BAD_KEY:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"rsa3072":0
 
 X509 CRT verify chain #17 (SHA-512 profile)
 depends_on:MBEDTLS_SHA256_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-mbedtls_x509_crt_verify_chain:"data_files/server7.crt data_files/test-int-ca.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_MD:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"sha512"
+mbedtls_x509_crt_verify_chain:"data_files/server7.crt data_files/test-int-ca.crt":"data_files/test-ca2.crt":MBEDTLS_X509_BADCERT_BAD_MD:MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"sha512":0
 
 X509 OID description #1
 x509_oid_desc:"2B06010505070301":"TLS Web Server Authentication"
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index a4003d0..646ba2d 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -66,6 +66,23 @@
     return 0;
 }
 
+int verify_fatal( void *data, mbedtls_x509_crt *crt, int certificate_depth, uint32_t *flags )
+{
+    int *levels = (int *) data;
+
+    ((void) crt);
+    ((void) certificate_depth);
+
+    /* Simulate a fatal error in the callback */
+    if( *levels & ( 1 << certificate_depth ) )
+    {
+        *flags |= ( 1 << certificate_depth );
+        return( -1 );
+    }
+
+    return( 0 );
+}
+
 /* strsep() not available on Windows */
 char *mystrsep(char **stringp, const char *delim)
 {
@@ -570,7 +587,7 @@
 /* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C */
 void mbedtls_x509_crt_verify_chain(  char *chain_paths, char *trusted_ca,
                                      int flags_result, int result,
-                                     char *profile_name )
+                                     char *profile_name, int vrfy_fatal_lvls )
 {
     char* act;
     uint32_t flags;
@@ -597,7 +614,7 @@
         profile = &profile_sha512;
 
     res = mbedtls_x509_crt_verify_with_profile( &chain, &trusted, NULL, profile,
-            NULL, &flags, NULL, NULL );
+            NULL, &flags, verify_fatal, &vrfy_fatal_lvls );
 
     TEST_ASSERT( res == ( result ) );
     TEST_ASSERT( flags == (uint32_t)( flags_result ) );