Add ticket_aead option for ssl_server2
The ticket_aead option allows to specify the session ticket protection.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 7cbdaf6..1a04eb9 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -120,6 +120,7 @@
#define DFL_TRUNC_HMAC -1
#define DFL_TICKETS MBEDTLS_SSL_SESSION_TICKETS_ENABLED
#define DFL_TICKET_TIMEOUT 86400
+#define DFL_TICKET_AEAD MBEDTLS_CIPHER_AES_256_GCM
#define DFL_CACHE_MAX -1
#define DFL_CACHE_TIMEOUT -1
#define DFL_SNI NULL
@@ -285,7 +286,8 @@
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
#define USAGE_TICKETS \
" tickets=%%d default: 1 (enabled)\n" \
- " ticket_timeout=%%d default: 86400 (one day)\n"
+ " ticket_timeout=%%d default: 86400 (one day)\n" \
+ " ticket_aead=%%s default: \"AES-256-GCM\"\n"
#else
#define USAGE_TICKETS ""
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
@@ -612,6 +614,7 @@
int trunc_hmac; /* accept truncated hmac? */
int tickets; /* enable / disable session tickets */
int ticket_timeout; /* session ticket lifetime */
+ int ticket_aead; /* session ticket protection */
int cache_max; /* max number of session cache entries */
int cache_timeout; /* expiration delay of session cache entries */
char *sni; /* string describing sni information */
@@ -1538,6 +1541,7 @@
opt.trunc_hmac = DFL_TRUNC_HMAC;
opt.tickets = DFL_TICKETS;
opt.ticket_timeout = DFL_TICKET_TIMEOUT;
+ opt.ticket_aead = DFL_TICKET_AEAD;
opt.cache_max = DFL_CACHE_MAX;
opt.cache_timeout = DFL_CACHE_TIMEOUT;
opt.sni = DFL_SNI;
@@ -1915,6 +1919,14 @@
if( opt.ticket_timeout < 0 )
goto usage;
}
+ else if( strcmp( p, "ticket_aead" ) == 0 )
+ {
+ const mbedtls_cipher_info_t *ci = mbedtls_cipher_info_from_string( q );
+
+ if( ci == NULL )
+ goto usage;
+ opt.ticket_aead = mbedtls_cipher_info_get_type( ci );
+ }
else if( strcmp( p, "cache_max" ) == 0 )
{
opt.cache_max = atoi( q );
@@ -2708,7 +2720,7 @@
{
if( ( ret = mbedtls_ssl_ticket_setup( &ticket_ctx,
rng_get, &rng,
- MBEDTLS_CIPHER_AES_256_GCM,
+ opt.ticket_aead,
opt.ticket_timeout ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ssl_ticket_setup returned %d\n\n", ret );