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Always print gmt_unix_time in TLS client

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Change ssl_parse_server_hello() so that the parsed first four random
bytes from the ServerHello message are printed by the TLS client as
a Unix timestamp regardless of whether MBEDTLS_DEBUG_C is defined. The
debug message will only be printed if debug_level is 3 or higher.

Unconditionally enabling the debug print enabled testing of this value.
This commit is contained in:
Andres Amaya Garcia 2017-09-06 15:33:34 +01:00 committed by Simon Butcher
parent ec82da4cb2
commit 074c58f08b
1 changed files with 5 additions and 10 deletions
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15
library/ssl_cli.c
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@ -1448,9 +1448,6 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
#endif #endif
int handshake_failure = 0; int handshake_failure = 0;
const mbedtls_ssl_ciphersuite_t *suite_info; const mbedtls_ssl_ciphersuite_t *suite_info;
#if defined(MBEDTLS_DEBUG_C)
uint32_t t;
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) ); MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) );
@ -1553,13 +1550,11 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION ); return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
} }
#if defined(MBEDTLS_DEBUG_C) MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu",
t = ( (uint32_t) buf[2] << 24 ) ( (uint32_t) buf[2] << 24 ) |
| ( (uint32_t) buf[3] << 16 ) ( (uint32_t) buf[3] << 16 ) |
| ( (uint32_t) buf[4] << 8 ) ( (uint32_t) buf[4] << 8 ) |
| ( (uint32_t) buf[5] ); ( (uint32_t) buf[5] ) ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
#endif
memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 ); memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 );