src: split chain list in table

This patch splits table->lists in two:

- Chains that reside in the cache are stored in the new
  tables->cache_chain and tables->cache_chain_ht. The hashtable chain
  cache allows for fast chain lookups.

- Chains that defined via command line / ruleset file reside in
  tables->chains.

Note that chains in the cache (already in the kernel) are not placed in
the table->chains.

By keeping separated lists, chains defined via command line / ruleset
file can be added to cache.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/rule.h b/include/rule.h
index f8e61512..6c6ada6b 100644
--- a/include/rule.h
+++ b/include/rule.h
@@ -156,6 +156,7 @@ struct table {
 	struct location		location;
 	struct scope		scope;
 	struct list_head	*cache_chain_ht;
+	struct list_head	cache_chain;
 	struct list_head	chains;
 	struct list_head	sets;
 	struct list_head	objs;
@@ -231,6 +232,7 @@ struct hook_spec {
 struct chain {
 	struct list_head	list;
 	struct list_head	cache_hlist;
+	struct list_head	cache_list;
 	struct handle		handle;
 	struct location		location;
 	unsigned int		refcnt;