From d40f1628c3717daebc437a398a285e371b5b6f7f Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Wed, 16 Jun 2010 12:45:33 +0200
Subject: libxt_set: new revision added

libipt_set renamed to libxt_set and the support for the forthcoming
ipset release added. I have tested backward (IPv4) and forward
compatibility (IPv4/IPv6):

ipset -N test iphash
ipset -A test test-address
iptables -N test-set
iptables -A test-set -j LOG --log-prefix "match "
iptables -A test-set -j DROP
iptables -A OUTPUT -m set --match-set test dst -j test-set
ping test-address
---
 include/linux/netfilter/xt_set.h | 110 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 include/linux/netfilter/xt_set.h

(limited to 'include/linux/netfilter/xt_set.h')

diff --git a/include/linux/netfilter/xt_set.h b/include/linux/netfilter/xt_set.h
new file mode 100644
index 00000000..3ad31378
--- /dev/null
+++ b/include/linux/netfilter/xt_set.h
@@ -0,0 +1,110 @@
+#ifndef _XT_SET_H
+#define _XT_SET_H
+
+/* The protocol version */
+#define IPSET_PROTOCOL		5
+
+/* The max length of strings including NUL: set and type identifiers */
+#define IPSET_MAXNAMELEN	32
+
+/* Sets are identified by an index in kernel space. Tweak with ip_set_id_t
+ * and IPSET_INVALID_ID if you want to increase the max number of sets.
+ */
+typedef uint16_t ip_set_id_t;
+
+#define IPSET_INVALID_ID	65535
+
+enum ip_set_dim {
+	IPSET_DIM_ZERO = 0,
+	IPSET_DIM_ONE,
+	IPSET_DIM_TWO,
+	IPSET_DIM_THREE,
+	/* Max dimension in elements.
+	 * If changed, new revision of iptables match/target is required.
+	 */
+	IPSET_DIM_MAX = 6,
+};
+
+/* Option flags for kernel operations */
+enum ip_set_kopt {
+	IPSET_INV_MATCH = (1 << IPSET_DIM_ZERO),
+	IPSET_DIM_ONE_SRC = (1 << IPSET_DIM_ONE),
+	IPSET_DIM_TWO_SRC = (1 << IPSET_DIM_TWO),
+	IPSET_DIM_THREE_SRC = (1 << IPSET_DIM_THREE),
+};
+
+/* Interface to iptables/ip6tables */
+
+#define SO_IP_SET 		83
+
+union ip_set_name_index {
+	char name[IPSET_MAXNAMELEN];
+	ip_set_id_t index;
+};
+
+#define IP_SET_OP_GET_BYNAME	0x00000006	/* Get set index by name */
+struct ip_set_req_get_set {
+	unsigned op;
+	unsigned version;
+	union ip_set_name_index set;
+};
+
+#define IP_SET_OP_GET_BYINDEX	0x00000007	/* Get set name by index */
+/* Uses ip_set_req_get_set */
+
+#define IP_SET_OP_VERSION	0x00000100	/* Ask kernel version */
+struct ip_set_req_version {
+	unsigned op;
+	unsigned version;
+};
+
+/* Revision 0 interface: backward compatible with netfilter/iptables */
+
+/*
+ * Option flags for kernel operations (xt_set_info_v0)
+ */
+#define IPSET_SRC		0x01	/* Source match/add */
+#define IPSET_DST		0x02	/* Destination match/add */
+#define IPSET_MATCH_INV		0x04	/* Inverse matching */
+
+struct xt_set_info_v0 {
+	ip_set_id_t index;
+	union {
+		u_int32_t flags[IPSET_DIM_MAX + 1];
+		struct {
+			u_int32_t __flags[IPSET_DIM_MAX];
+			u_int8_t dim;
+			u_int8_t flags;
+		} compat;
+	} u;
+};
+
+/* match and target infos */
+struct xt_set_info_match_v0 {
+	struct xt_set_info_v0 match_set;
+};
+
+struct xt_set_info_target_v0 {
+	struct xt_set_info_v0 add_set;
+	struct xt_set_info_v0 del_set;
+};
+
+/* Revision 1: current interface to netfilter/iptables */
+
+struct xt_set_info {
+	ip_set_id_t index;
+	u_int8_t dim;
+	u_int8_t flags;
+};
+
+/* match and target infos */
+struct xt_set_info_match {
+	struct xt_set_info match_set;
+};
+
+struct xt_set_info_target {
+	struct xt_set_info add_set;
+	struct xt_set_info del_set;
+};
+
+#endif /*_XT_SET_H*/
-- 
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