first step forward to merge conntrackd and conntrack into the same building chain

1 files changed, 44 insertions, 0 deletions

diff --git a/src/state_helper.c b/src/state_helper.c
new file mode 100644
index 0000000..81b0d09
--- /dev/null
+++ b/src/state_helper.c
@@ -0,0 +1,44 @@
+/*
+ * (C) 2006-2007 by Pablo Neira Ayuso <pablo@netfilter.org>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "conntrackd.h"
+#include "state_helper.h"
+
+static struct state_replication_helper *helper[IPPROTO_MAX];
+
+int state_helper_verdict(int type, struct nf_conntrack *ct) 
+{
+	u_int8_t l4proto;
+
+        if (type == NFCT_T_DESTROY)
+		return ST_H_REPLICATE;
+
+	l4proto = nfct_get_attr_u8(ct, ATTR_ORIG_L4PROTO);
+	if (helper[l4proto])
+		return helper[l4proto]->verdict(helper[l4proto], ct);
+
+	return ST_H_REPLICATE;
+}
+
+void state_helper_register(struct state_replication_helper *h, int state)
+{
+	if (helper[h->proto] == NULL)
+		helper[h->proto] = h;
+
+	helper[h->proto]->state |= (1 << state);
+}