AuroraMiddleware/mbedtls
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Send max_fragment_length extension (server)

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This commit is contained in:
Manuel Pégourié-Gonnard 2013-07-17 13:50:08 +02:00
parent f11a6d78c7
commit 7bb7899121
1 changed files with 27 additions and 0 deletions
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27
library/ssl_srv.c
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@ -987,6 +987,30 @@ static void ssl_write_renegotiation_ext( ssl_context *ssl,
*olen = 5 + ssl->verify_data_len * 2;
}
static void ssl_write_max_fragment_length_ext( ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->mfl_code == SSL_MAX_FRAG_LEN_NONE ) {
*olen = 0;
return;
}
SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) );
*p++ = (unsigned char)( ( TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF );
*p++ = 0x00;
*p++ = 1;
*p++ = ssl->mfl_code;
*olen = 5;
}
static int ssl_write_server_hello( ssl_context *ssl )
{
#if defined(POLARSSL_HAVE_TIME)
@ -1101,6 +1125,9 @@ static int ssl_write_server_hello( ssl_context *ssl )
ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) );
*p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF );