Remove TLS 1.2 Exporter if we don't have randbytes
The TLS-Exporter in TLS 1.2 requires client_random and server_random.
Unless MBEDTLS_SSL_CONTEXT_SERIALIZATION is defined, these aren't stored
after the handshake is completed.
Therefore, mbedtls_ssl_export_keying_material() exists only if either
MBEDTLS_SSL_CONTEXT_SERIALIZATION is defined or MBEDTLS_SSL_PROTO_TLS1_2
is *not* defined.
Signed-off-by: Max Fillinger <maximilian.fillinger@foxcrypto.com>
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index ffb2afa..9e38f69 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -336,7 +336,11 @@
" in the form of base64 code (serialize option\n" \
" must be set)\n" \
" default: \"\" (do nothing)\n" \
- " option: a file path\n"
+ " option: a file path\n" \
+ " exp_label=%%s Label to input into TLS-Exporter\n" \
+ " default: None (don't try to export a key)\n" \
+ " exp_len=%%d Length of key to extract from TLS-Exporter \n" \
+ " default: 20\n"
#else
#define USAGE_SERIALIZATION ""
#endif
@@ -391,10 +395,6 @@
" read_timeout=%%d default: 0 ms (no timeout)\n" \
" max_resend=%%d default: 0 (no resend on timeout)\n" \
" skip_close_notify=%%d default: 0 (send close_notify)\n" \
- " exp_label=%%s Label to input into TLS-Exporter\n" \
- " default: None (don't try to export a key)\n" \
- " exp_len=%%d Length of key to extract from TLS-Exporter \n" \
- " default: 20\n" \
"\n" \
USAGE_DTLS \
USAGE_CID \
@@ -2499,6 +2499,7 @@
}
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
+#if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION)
if (opt.exp_label != NULL && opt.exp_len > 0) {
unsigned char *exported_key = calloc((size_t) opt.exp_len, sizeof(unsigned int));
if (exported_key == NULL) {
@@ -2521,6 +2522,7 @@
mbedtls_printf("\n\n");
fflush(stdout);
}
+#endif /* defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) */
/*
* 6. Write the GET request
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 881c9fa..9eab6cd 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -471,7 +471,11 @@
" in the form of base64 code (serialize option\n" \
" must be set)\n" \
" default: \"\" (do nothing)\n" \
- " option: a file path\n"
+ " option: a file path\n" \
+ " exp_label=%%s Label to input into TLS-Exporter\n" \
+ " default: None (don't try to export a key)\n" \
+ " exp_len=%%d Length of key to extract from TLS-Exporter \n" \
+ " default: 20\n"
#else
#define USAGE_SERIALIZATION ""
#endif
@@ -519,10 +523,6 @@
" event=%%d default: 0 (loop)\n" \
" options: 1 (level-triggered, implies nbio=1),\n" \
" read_timeout=%%d default: 0 ms (no timeout)\n" \
- " exp_label=%%s Label to input into TLS-Exporter\n" \
- " default: None (don't try to export a key)\n" \
- " exp_len=%%d Length of key to extract from TLS-Exporter \n" \
- " default: 20\n" \
"\n" \
USAGE_DTLS \
USAGE_SRTP \
@@ -3619,6 +3619,7 @@
mbedtls_printf("\n");
}
+#if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION)
if (opt.exp_label != NULL && opt.exp_len > 0) {
unsigned char *exported_key = calloc((size_t) opt.exp_len, sizeof(unsigned int));
if (exported_key == NULL) {
@@ -3641,6 +3642,7 @@
mbedtls_printf("\n\n");
fflush(stdout);
}
+#endif /* defined(MBEDTLS_SSL_CONTEXT_SERIALZIATION) */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
else if (opt.use_srtp != 0) {