DeforaNetworks/fwknop
DeforaNetworks/fwknop
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Started on code to parse the digest cache file

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At init time fwknopd will read in the digest cache file into the in-memory
linked list of digests for SPA replay detection. This commit starts on this
code, but the file format does not yet include destination IP addresses
(to be added in an upcoming commit).
This commit is contained in:
Michael Rash 2011-08-12 21:43:07 -04:00
parent 459cfb4d45
commit 4197e51c9d
1 changed files with 33 additions and 3 deletions
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36
server/replay_cache.c
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@ -131,7 +131,7 @@ int
replay_cache_init(fko_srv_options_t *opts)
{
#ifdef NO_DIGEST_CACHE
return 0;
return(-1);
#else
/* If rotation was specified, do it.
@ -152,9 +152,39 @@ replay_cache_init(fko_srv_options_t *opts)
int
replay_file_cache_init(fko_srv_options_t *opts)
{
FILE *digest_file_cache_ptr = NULL;
/* if the file exists, import the previous SPA digests into
* the cache list
*/
if (access(opts->config[CONF_DIGEST_FILE], F_OK) == 0)
{
/* Check permissions
*/
if (access(opts->config[CONF_DIGEST_FILE], R_OK|W_OK) != 0)
{
log_msg(LOG_WARNING, "Digest file '%s' exists but: '%s'",
opts->config[CONF_DIGEST_FILE], strerror(errno));
return(-1);
}
}
else
{
/* the does not exist yet, so it will be created when the first
* successful SPA packet digest is written to disk
*/
return(-1);
}
if ((digest_file_cache_ptr = fopen(opts->config[CONF_DIGEST_FILE], "r")) == NULL)
{
log_msg(LOG_WARNING, "Could not open digest cache: %s",
opts->config[CONF_DIGEST_FILE]);
return(-1);
}
fclose(digest_file_cache_ptr);
return 0;
}
@ -167,7 +197,7 @@ int
replay_db_cache_init(fko_srv_options_t *opts)
{
#ifdef NO_DIGEST_CACHE
return 0;
return(-1);
#else
#ifdef HAVE_LIBGDBM
@ -230,7 +260,7 @@ int
replay_check(fko_srv_options_t *opts, fko_ctx_t ctx)
{
#ifdef NO_DIGEST_CACHE
return 0;
return(-1);
#else
#if USE_FILE_CACHE