Add cmd line option to ssl_client2 for datagram packing
This commit adds a new command line option `dgram_packing`
to the example server application programs/ssl/ssl_client2
allowing to allow/forbid the use of datagram packing.
@@ -107,6 +107,7 @@ int main( void )
#define DFL_HS_TO_MIN 0
#define DFL_HS_TO_MAX 0
#define DFL_DTLS_MTU -1
+#define DFL_DGRAM_PACKING 1
#define DFL_FALLBACK -1
#define DFL_EXTENDED_MS -1
#define DFL_ETM -1
@@ -200,7 +201,10 @@ int main( void )
" dtls=%%d default: 0 (TLS)\n" \
" hs_timeout=%%d-%%d default: (library default: 1000-60000)\n" \
" range of DTLS handshake timeouts in millisecs\n" \
- " mtu=%%d default: (library default: unlimited)\n"
+ " mtu=%%d default: (library default: unlimited)\n" \
+ " dgram_packing=%%d default: 1 (allowed)\n" \
+ " allow or forbid packing of multiple\n" \
+ " records within a single datgram.\n"
#else
#define USAGE_DTLS ""
#endif
@@ -349,6 +353,7 @@ struct options
uint32_t hs_to_max; /* Max value of DTLS handshake timer */
int dtls_mtu; /* UDP Maximum tranport unit for DTLS */
int fallback; /* is this a fallback connection? */
+ int dgram_packing; /* allow/forbid datagram packing */
int extended_ms; /* negotiate extended master secret? */
int etm; /* negotiate encrypt then mac? */
} opt;
@@ -624,6 +629,7 @@ int main( int argc, char *argv[] )
opt.fallback = DFL_FALLBACK;
opt.extended_ms = DFL_EXTENDED_MS;
opt.etm = DFL_ETM;
+ opt.dgram_packing = DFL_DGRAM_PACKING;
for( i = 1; i < argc; i++ )
{
@@ -937,6 +943,15 @@ int main( int argc, char *argv[] )
if( opt.dtls_mtu < 0 )
goto usage;
}
+ else if( strcmp( p, "dgram_packing" ) == 0 )
+ {
+ opt.dgram_packing = atoi( q );
+ if( opt.dgram_packing != 0 &&
+ opt.dgram_packing != 1 )
+ {
+ goto usage;
+ }
+ }
else if( strcmp( p, "recsplit" ) == 0 )
{
opt.recsplit = atoi( q );
@@ -1340,6 +1355,9 @@ int main( int argc, char *argv[] )
if( opt.dtls_mtu != DFL_DTLS_MTU )
mbedtls_ssl_conf_mtu( &conf, opt.dtls_mtu );
+
+ if( opt.dgram_packing != DFL_DGRAM_PACKING )
+ mbedtls_ssl_conf_datagram_packing( &ssl, opt.dgram_packing );
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
