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MINOR: cache/htx: Don't use the same cache on HTX and legacy HTTP proxies

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It is not possible to mix the format of messages stored in a cache. So we reject
the configurations with a cache used by an HTX proxy and a legacy HTTP proxy in
same time.
This commit is contained in:
Christopher Faulet 2018-12-03 14:30:41 +01:00 committed by Willy Tarreau
parent c9df7f728f
commit 1f672c536d
1 changed files with 26 additions and 0 deletions
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26
src/cache.c
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@ -37,6 +37,9 @@
#include <common/initcall.h>
/* flt_cache_store */
#define CACHE_F_LEGACY_HTTP 0x00000001 /* The cache is used to store raw HTTP
* messages (legacy implementation) */
#define CACHE_F_HTX 0x00000002 /* The cache is used to store HTX messages */
static const char *cache_store_flt_id = "cache store filter";
@ -51,6 +54,7 @@ struct cache {
unsigned int maxblocks;
unsigned int maxobjsz; /* max-object-size (in bytes) */
char id[33]; /* cache name */
unsigned int flags; /* CACHE_F_* */
};
/*
@ -882,6 +886,7 @@ int cfg_parse_cache(const char *file, int linenum, char **args, int kwm)
tmp_cache_config->maxage = 60;
tmp_cache_config->maxblocks = 0;
tmp_cache_config->maxobjsz = 0;
tmp_cache_config->flags = 0;
}
} else if (strcmp(args[0], "total-max-size") == 0) {
unsigned long int maxsize;
@ -1035,6 +1040,9 @@ int cfg_cache_postparser()
if (!strcmp(cache->id, cache_ptr)) {
/* don't free there, it's still used in the filter conf */
cache_ptr = cache;
cache->flags |= ((curproxy->options2 & PR_O2_USE_HTX)
? CACHE_F_HTX
: CACHE_F_LEGACY_HTTP);
break;
}
}
@ -1060,6 +1068,9 @@ int cfg_cache_postparser()
if (!strcmp(cache->id, cache_ptr)) {
free(cache_ptr);
cache_ptr = cache;
cache->flags |= ((curproxy->options2 & PR_O2_USE_HTX)
? CACHE_F_HTX
: CACHE_F_LEGACY_HTTP);
break;
}
}
@ -1086,6 +1097,9 @@ int cfg_cache_postparser()
/* there can be only one filter per cache, so we free it there */
free(cache_ptr);
cache_ptr = cache;
cache->flags |= ((curproxy->options2 & PR_O2_USE_HTX)
? CACHE_F_HTX
: CACHE_F_LEGACY_HTTP);
break;
}
}
@ -1098,6 +1112,18 @@ int cfg_cache_postparser()
fconf->conf = cache_ptr;
}
}
/* Check if the cache is used by HTX and legacy HTTP proxies in same
* time
*/
list_for_each_entry(cache, &caches, list) {
if ((cache->flags & (CACHE_F_HTX|CACHE_F_LEGACY_HTTP)) == (CACHE_F_HTX|CACHE_F_LEGACY_HTTP)) {
ha_alert("Cache '%s': cannot be used by HTX and legacy HTTP proxies in same time.\n",
cache->id);
err++;
}
}
return err;
}