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author | Jo-Philipp Wich <jow@openwrt.org> | 2014-08-01 22:49:47 +0000 |
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committer | Jo-Philipp Wich <jow@openwrt.org> | 2014-08-01 22:49:47 +0000 |
commit | baa7c211f5545c4ccc1029991dfca34584cfa221 (patch) | |
tree | 9234641fbb37b4c0d011092e3e99d1a5ef6c1ae0 /target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch | |
parent | 930e3e7ca30c899d73390fcc8ade503bc249de37 (diff) | |
download | upstream-baa7c211f5545c4ccc1029991dfca34584cfa221.tar.gz upstream-baa7c211f5545c4ccc1029991dfca34584cfa221.tar.bz2 upstream-baa7c211f5545c4ccc1029991dfca34584cfa221.zip |
netfilter: introduce xt_id match
This commit implements a new netfilter match "xt_id" which can be used to
attach unsigned 32bit IDs to iptables rules.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
SVN-Revision: 41945
Diffstat (limited to 'target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch')
-rw-r--r-- | target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch b/target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch new file mode 100644 index 0000000000..44748a9afb --- /dev/null +++ b/target/linux/generic/patches-3.13/615-netfilter_add_xt_id_match.patch @@ -0,0 +1,95 @@ +--- a/include/uapi/linux/netfilter/Kbuild ++++ b/include/uapi/linux/netfilter/Kbuild +@@ -54,6 +54,7 @@ header-y += xt_ecn.h + header-y += xt_esp.h + header-y += xt_hashlimit.h + header-y += xt_helper.h ++header-y += xt_id.h + header-y += xt_iprange.h + header-y += xt_ipvs.h + header-y += xt_layer7.h +--- /dev/null ++++ b/include/uapi/linux/netfilter/xt_id.h +@@ -0,0 +1,8 @@ ++#ifndef _XT_ID_H ++#define _XT_ID_H ++ ++struct xt_id_info { ++ u32 id; ++}; ++ ++#endif /* XT_ID_H */ +--- a/net/netfilter/Kconfig ++++ b/net/netfilter/Kconfig +@@ -1033,6 +1033,13 @@ config NETFILTER_XT_MATCH_HL + in the IPv6 header, or the time-to-live field in the IPv4 + header of the packet. + ++config NETFILTER_XT_MATCH_ID ++ tristate '"id" match support' ++ depends on NETFILTER_ADVANCED ++ ---help--- ++ This option adds a `id' dummy-match, which allows you to put ++ numeric IDs into your iptables ruleset. ++ + config NETFILTER_XT_MATCH_IPRANGE + tristate '"iprange" address range match support' + depends on NETFILTER_ADVANCED +--- a/net/netfilter/Makefile ++++ b/net/netfilter/Makefile +@@ -133,6 +133,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += + obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o + obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o + obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o ++obj-$(CONFIG_NETFILTER_XT_MATCH_ID) += xt_id.o + obj-$(CONFIG_NETFILTER_XT_MATCH_IPRANGE) += xt_iprange.o + obj-$(CONFIG_NETFILTER_XT_MATCH_IPVS) += xt_ipvs.o + obj-$(CONFIG_NETFILTER_XT_MATCH_LENGTH) += xt_length.o +--- /dev/null ++++ b/net/netfilter/xt_id.c +@@ -0,0 +1,45 @@ ++/* ++ * Implements a dummy match to allow attaching IDs to rules ++ * ++ * 2014-08-01 Jo-Philipp Wich <jow@openwrt.org> ++ */ ++ ++#include <linux/module.h> ++#include <linux/skbuff.h> ++#include <linux/netfilter/x_tables.h> ++#include <linux/netfilter/xt_id.h> ++ ++MODULE_AUTHOR("Jo-Philipp Wich <jow@openwrt.org>"); ++MODULE_DESCRIPTION("Xtables: No-op match which can be tagged with a 32bit ID"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS("ipt_id"); ++MODULE_ALIAS("ip6t_id"); ++ ++static bool ++id_mt(const struct sk_buff *skb, struct xt_action_param *par) ++{ ++ /* We always match */ ++ return true; ++} ++ ++static struct xt_match id_mt_reg __read_mostly = { ++ .name = "id", ++ .revision = 0, ++ .family = NFPROTO_UNSPEC, ++ .match = id_mt, ++ .matchsize = sizeof(struct xt_id_info), ++ .me = THIS_MODULE, ++}; ++ ++static int __init id_mt_init(void) ++{ ++ return xt_register_match(&id_mt_reg); ++} ++ ++static void __exit id_mt_exit(void) ++{ ++ xt_unregister_match(&id_mt_reg); ++} ++ ++module_init(id_mt_init); ++module_exit(id_mt_exit); |