[NETFILTER]: Merge ipt_tos into xt_dscp
Merge ipt_tos into xt_dscp.
Merge ipt_tos (tos v0 match) into xt_dscp. They both match on the same
field in the IPv4 header, so it seems reasonable to keep them in one
piece. This is part one of the implicit 4-patch series to move tos to
xtables and extend it by IPv6.
Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
commit d986d0ecb03d4a040893bf1061fa0f0928c3bbc5
tree fcb6801a9c7f3e016591e92c038a9639f0449700
parent 93a030a957dbe5c4ff8648e6dec5f7ac09bd3a5d
author Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx> Tue, 04 Dec 2007 10:47:03 +0100
committer Patrick McHardy <kaber@xxxxxxxxx> Tue, 04 Dec 2007 11:23:20 +0100
net/ipv4/netfilter/Kconfig | 9 --------
net/ipv4/netfilter/Makefile | 1 -
net/ipv4/netfilter/ipt_tos.c | 50 ------------------------------------------
net/netfilter/Kconfig | 6 ++++-
net/netfilter/xt_dscp.c | 24 ++++++++++++++++++--
5 files changed, 27 insertions(+), 63 deletions(-)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 244e91d..232817c 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -63,15 +63,6 @@ config IP_NF_MATCH_IPRANGE
To compile it as a module, choose M here. If unsure, say N.
-config IP_NF_MATCH_TOS
- tristate "TOS match support"
- depends on IP_NF_IPTABLES
- help
- TOS matching allows you to match packets based on the Type Of
- Service fields of the IP packet.
-
- To compile it as a module, choose M here. If unsure, say N.
-
config IP_NF_MATCH_RECENT
tristate '"recent" match support'
depends on IP_NF_IPTABLES
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 42199e9..00c19c7 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -46,7 +46,6 @@ obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o
obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o
obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o
obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
-obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
# targets
diff --git a/net/ipv4/netfilter/ipt_tos.c b/net/ipv4/netfilter/ipt_tos.c
deleted file mode 100644
index 7d60868..0000000
--- a/net/ipv4/netfilter/ipt_tos.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Kernel module to match TOS values. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@xxxxxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/ip.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-
-#include <linux/netfilter_ipv4/ipt_tos.h>
-#include <linux/netfilter/x_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("iptables TOS match module");
-
-static bool
-tos_mt(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const struct xt_match *match,
- const void *matchinfo, int offset, unsigned int protoff, bool *hotdrop)
-{
- const struct ipt_tos_info *info = matchinfo;
-
- return (ip_hdr(skb)->tos == info->tos) ^ info->invert;
-}
-
-static struct xt_match tos_mt_reg __read_mostly = {
- .name = "tos",
- .family = AF_INET,
- .match = tos_mt,
- .matchsize = sizeof(struct ipt_tos_info),
- .me = THIS_MODULE,
-};
-
-static int __init tos_mt_init(void)
-{
- return xt_register_match(&tos_mt_reg);
-}
-
-static void __exit tos_mt_exit(void)
-{
- xt_unregister_match(&tos_mt_reg);
-}
-
-module_init(tos_mt_init);
-module_exit(tos_mt_exit);
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index d220607..1804916 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -487,7 +487,7 @@ config NETFILTER_XT_MATCH_DCCP
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
config NETFILTER_XT_MATCH_DSCP
- tristate '"dscp" match support'
+ tristate '"dscp" and "tos" match support'
depends on NETFILTER_XTABLES
help
This option adds a `DSCP' match, which allows you to match against
@@ -495,6 +495,10 @@ config NETFILTER_XT_MATCH_DSCP
The DSCP field can have any value between 0x0 and 0x3f inclusive.
+ It will also add a "tos" match, which allows you to match packets
+ based on the Type Of Service fields of the IPv4 packet (which share
+ the same bits as DSCP).
+
To compile it as a module, choose M here. If unsure, say N.
config NETFILTER_XT_MATCH_ESP
diff --git a/net/netfilter/xt_dscp.c b/net/netfilter/xt_dscp.c
index 63f7354..75b0df9 100644
--- a/net/netfilter/xt_dscp.c
+++ b/net/netfilter/xt_dscp.c
@@ -13,14 +13,16 @@
#include <linux/ipv6.h>
#include <net/dsfield.h>
-#include <linux/netfilter/xt_dscp.h>
#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_dscp.h>
+#include <linux/netfilter_ipv4/ipt_tos.h>
MODULE_AUTHOR("Harald Welte <laforge@xxxxxxxxxxxxx>");
-MODULE_DESCRIPTION("x_tables DSCP matching module");
+MODULE_DESCRIPTION("x_tables DSCP/tos matching module");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_dscp");
MODULE_ALIAS("ip6t_dscp");
+MODULE_ALIAS("ipt_tos");
static bool
dscp_mt(const struct sk_buff *skb, const struct net_device *in,
@@ -60,6 +62,16 @@ dscp_mt_check(const char *tablename, const void *info,
return true;
}
+static bool tos_mt_v0(const struct sk_buff *skb, const struct net_device *in,
+ const struct net_device *out,
+ const struct xt_match *match, const void *matchinfo,
+ int offset, unsigned int protoff, bool *hotdrop)
+{
+ const struct ipt_tos_info *info = matchinfo;
+
+ return (ip_hdr(skb)->tos == info->tos) ^ info->invert;
+}
+
static struct xt_match dscp_mt_reg[] __read_mostly = {
{
.name = "dscp",
@@ -77,6 +89,14 @@ static struct xt_match dscp_mt_reg[] __read_mostly = {
.matchsize = sizeof(struct xt_dscp_info),
.me = THIS_MODULE,
},
+ {
+ .name = "tos",
+ .revision = 0,
+ .family = AF_INET,
+ .match = tos_mt_v0,
+ .matchsize = sizeof(struct ipt_tos_info),
+ .me = THIS_MODULE,
+ },
};
static int __init dscp_mt_init(void)
-
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