Further adapt prototypes of ticket functions
Moving everything in ticket_keys structure, that will soon become
ticket_context.
diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c
index 5ce7a35..181f045 100644
--- a/library/ssl_ticket.c
+++ b/library/ssl_ticket.c
@@ -162,13 +162,15 @@
*
* (the internal state structure differs, however).
*/
-int mbedtls_ssl_ticket_write( const mbedtls_ssl_config *conf,
+int mbedtls_ssl_ticket_write( void *p_ticket,
const mbedtls_ssl_session *session,
unsigned char *start,
const unsigned char *end,
- size_t *tlen )
+ size_t *tlen,
+ uint32_t *ticket_lifetime )
{
int ret;
+ mbedtls_ssl_ticket_keys *ctx = p_ticket;
unsigned char *p = start;
unsigned char *state;
unsigned char iv[16];
@@ -176,9 +178,11 @@
*tlen = 0;
- if( conf->ticket_keys == NULL )
+ if( ctx == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+ *ticket_lifetime = ctx->ticket_lifetime;
+
/* We need at least 16 bytes for key_name, 16 for IV, 2 for len
* 16 for padding, 32 for MAC, in addition to session itself,
* that will be checked when writing it. */
@@ -186,12 +190,11 @@
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
/* Write key name */
- memcpy( p, conf->ticket_keys->key_name, 16 );
+ memcpy( p, ctx->key_name, 16 );
p += 16;
/* Generate and write IV (with a copy for aes_crypt) */
- if( ( ret = conf->f_rng( conf->p_rng, p, 16 ) ) != 0 )
- return( ret );
+ memset( p, 0x2a, 16 ); /* Temporary WIP */
memcpy( iv, p, 16 );
p += 16;
@@ -207,7 +210,7 @@
state[i] = (unsigned char) pad_len;
/* Encrypt */
- if( ( ret = mbedtls_aes_crypt_cbc( &conf->ticket_keys->enc, MBEDTLS_AES_ENCRYPT,
+ if( ( ret = mbedtls_aes_crypt_cbc( &ctx->enc, MBEDTLS_AES_ENCRYPT,
enc_len, iv, state, state ) ) != 0 )
{
return( ret );
@@ -220,7 +223,7 @@
/* Compute and write MAC( key_name + iv + enc_state_len + enc_state ) */
if( ( ret = mbedtls_md_hmac( mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ),
- conf->ticket_keys->mac_key, 16,
+ ctx->mac_key, 16,
start, p - start, p ) ) != 0 )
{
return( ret );
@@ -235,12 +238,13 @@
/*
* Load session ticket (see mbedtls_ssl_ticket_write for structure)
*/
-int mbedtls_ssl_ticket_parse( const mbedtls_ssl_config *conf,
+int mbedtls_ssl_ticket_parse( void *p_ticket,
mbedtls_ssl_session *session,
unsigned char *buf,
size_t len )
{
int ret;
+ mbedtls_ssl_ticket_keys *ctx = p_ticket;
unsigned char *key_name = buf;
unsigned char *iv = buf + 16;
unsigned char *enc_len_p = iv + 16;
@@ -250,7 +254,7 @@
size_t enc_len, clear_len, i;
unsigned char pad_len, diff;
- if( len < 34 || conf->ticket_keys == NULL )
+ if( len < 34 || ctx == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1];
@@ -262,12 +266,12 @@
/* Check name, in constant time though it's not a big secret */
diff = 0;
for( i = 0; i < 16; i++ )
- diff |= key_name[i] ^ conf->ticket_keys->key_name[i];
+ diff |= key_name[i] ^ ctx->key_name[i];
/* don't return yet, check the MAC anyway */
/* Check mac, with constant-time buffer comparison */
if( ( ret = mbedtls_md_hmac( mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ),
- conf->ticket_keys->mac_key, 16,
+ ctx->mac_key, 16,
buf, len - 32, computed_mac ) ) != 0 )
{
return( ret );
@@ -282,7 +286,7 @@
return( MBEDTLS_ERR_SSL_INVALID_MAC );
/* Decrypt */
- if( ( ret = mbedtls_aes_crypt_cbc( &conf->ticket_keys->dec, MBEDTLS_AES_DECRYPT,
+ if( ( ret = mbedtls_aes_crypt_cbc( &ctx->dec, MBEDTLS_AES_DECRYPT,
enc_len, iv, ticket, ticket ) ) != 0 )
{
return( ret );
@@ -306,7 +310,7 @@
#if defined(MBEDTLS_HAVE_TIME)
/* Check if still valid */
- if( (int) ( time( NULL) - session->start ) > conf->ticket_lifetime )
+ if( ( time( NULL) - session->start ) > ctx->ticket_lifetime )
return( MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED );
#endif
