replaycache.h File Reference

Header file for replaycache.c. More...

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	replaycache_free(r)   FREE_AND_NULL(replaycache_t, replaycache_free_, (r))

Typedefs
typedef struct replaycache_s	replaycache_t

Functions
void	replaycache_free_ (replaycache_t *r)
replaycache_t *	replaycache_new (time_t horizon, time_t interval)
int	replaycache_add_and_test (replaycache_t *r, const void *data, size_t len)
int	replaycache_add_test_and_elapsed (replaycache_t *r, const void *data, size_t len, time_t *elapsed)
void	replaycache_scrub_if_needed (replaycache_t *r)

Detailed Description

Header file for replaycache.c.

Function Documentation

replaycache_add_and_test()

int replaycache_add_and_test	(	replaycache_t *	r,
		const void *	data,
		size_t	len
	)

Test the buffer of length len point to by data against the replay cache r; the digest of the buffer will be added to the cache at the current time, and the function will return 1 if it was already seen within the cache's horizon, or 0 otherwise.

Here is the call graph for this function:

replaycache_add_test_and_elapsed()

int replaycache_add_test_and_elapsed	(	replaycache_t *	r,
		const void *	data,
		size_t	len,
		time_t *	elapsed
	)

Like replaycache_add_and_test(), but if it's a hit also return the time elapsed since this digest was last seen.

Here is the call graph for this function:

replaycache_free_()

void replaycache_free_

(

replaycache_t *

r

)

Free the replaycache r and all of its entries.

replaycache_new()

replaycache_t* replaycache_new	(	time_t	horizon,
		time_t	interval
	)

Allocate a new, empty replay detection cache, where horizon is the time for entries to age out and interval is the time after which the cache should be scrubbed for old entries.

replaycache_scrub_if_needed()

void replaycache_scrub_if_needed

(

replaycache_t *

r

)

Scrub aged entries out of r if sufficiently long has elapsed since r was last scrubbed.

Here is the call graph for this function: