src: allow to specify the base chain type

This patch allows you to specify the type of the base chain, eg.

	add table mangle
	add chain mangle OUTPUT { type route hook NF_INET_LOCAL_OUT 0; }

The chain type determines the semantics of the chain, we currently
have three types:

* filter, used for plain packet filtering.
* nat, it only sees the first packet of the flow.
* route, which is the equivalent of the iptables mangle table, that
  triggers a re-route if there is any change in some of the packet header
  fields, eg. IP TOS/DSCP, or the packet metainformation, eg. mark.

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

1 files changed, 2 insertions, 3 deletions

diff --git a/src/rule.c b/src/rule.c
index 83686240..fb0387c3 100644
--- a/src/rule.c
+++ b/src/rule.c
@@ -250,9 +250,8 @@ static void chain_print(const struct chain *chain)
 
 	printf("\tchain %s {\n", chain->handle.chain);
 	if (chain->hooknum) {
-		printf("\t\t hook %s %u;\n",
-		hooknum2str(chain->hooknum),
-		chain->priority);
+		printf("\t\t type %s hook %s %u;\n", chain->type,
+		       hooknum2str(chain->hooknum), chain->priority);
 	}
 	list_for_each_entry(rule, &chain->rules, list) {
 		printf("\t\t");