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Preparation for timers

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Currently directly using timing.c, plan to use callbacks later to loosen
coupling, but first just get things working.
This commit is contained in:
Manuel Pégourié-Gonnard 2014-09-29 14:04:42 +02:00 committed by Paul Bakker
parent bd97fdb3a4
commit db2858ce96
2 changed files with 43 additions and 0 deletions
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12
include/polarssl/ssl.h
View file

@ -76,6 +76,10 @@
#include "zlib.h"
#endif
#if defined(POLARSSL_TIMING_C)
#include "timing.h"
#endif
#if defined(POLARSSL_HAVE_TIME)
#include <time.h>
#endif
@ -814,6 +818,14 @@ struct _ssl_context
ssl_transform *transform; /*!< negotiated transform params */
ssl_transform *transform_negotiate; /*!< transform params in negotiation */
/*
* Timers (WIP)
*/
#if defined(POLARSSL_TIMING_C)
struct hr_time time_info;
unsigned long time_limit;
#endif
/*
* Record layer (incoming data)
*/

31
library/ssl_tls.c
View file

@ -78,6 +78,37 @@ static inline size_t ssl_ep_len( const ssl_context *ssl )
return( 0 );
}
/*
* Timers (WIP)
*/
#if defined(POLARSSL_TIMING_C)
/*
* Start a timer.
* Passing millisecs = 0 cancels a running timer.
* The timer is already running iff time_limit != 0.
*/
void ssl_set_timer( ssl_context *ssl, unsigned long millisecs )
{
ssl->time_limit = millisecs;
get_timer( &ssl->time_info, 1 );
}
/*
* Return -1 is timer is expired, 0 if it isn't.
*/
int ssl_check_timer( ssl_context *ssl )
{
if( ssl->time_limit != 0 &&
get_timer( &ssl->time_info, 0 ) > ssl->time_limit )
{
return( -1 );
}
return( 0 );
}
#endif
#if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
/*
* Convert max_fragment_length codes to length.