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Make renego period configurable

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-11-05 13:58:53 +01:00
parent b445805283
commit 837f0fe831
2 changed files with 33 additions and 7 deletions
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18
library/ssl_tls.c
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@ -3404,6 +3404,8 @@ int ssl_init( ssl_context *ssl )
#if defined(POLARSSL_SSL_RENEGOTIATION)
ssl->renego_max_records = SSL_RENEGO_MAX_RECORDS_DEFAULT;
memset( ssl->renego_period, 0xFF, 7 );
ssl->renego_period[7] = 0x00;
#endif
#if defined(POLARSSL_DHM_C)
@ -4031,6 +4033,12 @@ void ssl_set_renegotiation_enforced( ssl_context *ssl, int max_records )
{
ssl->renego_max_records = max_records;
}
void ssl_set_renegotiation_period( ssl_context *ssl,
const unsigned char period[8] )
{
memcpy( ssl->renego_period, period, 8 );
}
#endif /* POLARSSL_SSL_RENEGOTIATION */
#if defined(POLARSSL_SSL_SESSION_TICKETS)
@ -4279,10 +4287,6 @@ int ssl_renegotiate( ssl_context *ssl )
*/
static int ssl_check_ctr_renegotiate( ssl_context *ssl )
{
static const unsigned char ctr_limit[8] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00
};
if( ssl->state != SSL_HANDSHAKE_OVER ||
ssl->renegotiation == SSL_RENEGOTIATION_PENDING ||
ssl->disable_renegotiation == SSL_RENEGOTIATION_DISABLED )
@ -4291,13 +4295,13 @@ static int ssl_check_ctr_renegotiate( ssl_context *ssl )
}
// TODO: adapt for DTLS
if( memcmp( ssl->in_ctr, ctr_limit, 8 ) <= 0 &&
memcmp( ssl->out_ctr, ctr_limit, 8 ) <= 0 )
if( memcmp( ssl->in_ctr, ssl->renego_period, 8 ) <= 0 &&
memcmp( ssl->out_ctr, ssl->renego_period, 8 ) <= 0 )
{
return( 0 );
}
SSL_DEBUG_MSG( 2, ( "record counter about to wrap: renegotiate" ) );
SSL_DEBUG_MSG( 0, ( "record counter limit reached: renegotiate" ) );
return( ssl_renegotiate( ssl ) );
}
#endif /* POLARSSL_SSL_RENEGOTIATION */