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netfilter: ipt_addrtype: rename to xt_addrtype

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Followup patch will add ipv6 support.

ipt_addrtype.h is retained for compatibility reasons, but no longer used
by the kernel.

Signed-off-by: Florian Westphal <fwestphal@astaro.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Florian Westphal 2011-03-15 20:16:20 +01:00 committed by Patrick McHardy
parent 6a8ab06077
commit de81bbea17
8 changed files with 63 additions and 26 deletions
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8
Documentation/feature-removal-schedule.txt
View file

@ -618,3 +618,11 @@ Who: Jan Engelhardt <jengelh@medozas.de>
Files: net/netfilter/xt_connlimit.c
----------------------------
What: ipt_addrtype match include file
When: 2012
Why: superseded by xt_addrtype
Who: Florian Westphal <fw@strlen.de>
Files: include/linux/netfilter_ipv4/ipt_addrtype.h
----------------------------

1
include/linux/netfilter/Kbuild
View file

@ -29,6 +29,7 @@ header-y += xt_TCPMSS.h
header-y += xt_TCPOPTSTRIP.h
header-y += xt_TEE.h
header-y += xt_TPROXY.h
header-y += xt_addrtype.h
header-y += xt_cluster.h
header-y += xt_comment.h
header-y += xt_connbytes.h

27
include/linux/netfilter/xt_addrtype.h Normal file
View file

@ -0,0 +1,27 @@
#ifndef _XT_ADDRTYPE_H
#define _XT_ADDRTYPE_H
#include <linux/types.h>
enum {
XT_ADDRTYPE_INVERT_SOURCE = 0x0001,
XT_ADDRTYPE_INVERT_DEST = 0x0002,
XT_ADDRTYPE_LIMIT_IFACE_IN = 0x0004,
XT_ADDRTYPE_LIMIT_IFACE_OUT = 0x0008,
};
struct xt_addrtype_info_v1 {
__u16 source; /* source-type mask */
__u16 dest; /* dest-type mask */
__u32 flags;
};
/* revision 0 */
struct xt_addrtype_info {
__u16 source; /* source-type mask */
__u16 dest; /* dest-type mask */
__u32 invert_source;
__u32 invert_dest;
};
#endif

10
net/ipv4/netfilter/Kconfig
View file

@ -64,16 +64,6 @@ config IP_NF_IPTABLES
if IP_NF_IPTABLES
# The matches.
config IP_NF_MATCH_ADDRTYPE
tristate '"addrtype" address type match support'
depends on NETFILTER_ADVANCED
help
This option allows you to match what routing thinks of an address,
eg. UNICAST, LOCAL, BROADCAST, ...
If you want to compile it as a module, say M here and read
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
config IP_NF_MATCH_AH
tristate '"ah" match support'
depends on NETFILTER_ADVANCED

1
net/ipv4/netfilter/Makefile
View file

@ -48,7 +48,6 @@ obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o
obj-$(CONFIG_IP_NF_SECURITY) += iptable_security.o
# matches
obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o
obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o
obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o

10
net/netfilter/Kconfig
View file

@ -649,6 +649,16 @@ config NETFILTER_XT_TARGET_TCPOPTSTRIP
comment "Xtables matches"
config NETFILTER_XT_MATCH_ADDRTYPE
tristate '"addrtype" address type match support'
depends on NETFILTER_ADVANCED
---help---
This option allows you to match what routing thinks of an address,
eg. UNICAST, LOCAL, BROADCAST, ...
If you want to compile it as a module, say M here and read
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
config NETFILTER_XT_MATCH_CLUSTER
tristate '"cluster" match support'
depends on NF_CONNTRACK

1
net/netfilter/Makefile
View file

@ -70,6 +70,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_TRACE) += xt_TRACE.o
obj-$(CONFIG_NETFILTER_XT_TARGET_IDLETIMER) += xt_IDLETIMER.o
# matches
obj-$(CONFIG_NETFILTER_XT_MATCH_ADDRTYPE) += xt_addrtype.o
obj-$(CONFIG_NETFILTER_XT_MATCH_CLUSTER) += xt_cluster.o
obj-$(CONFIG_NETFILTER_XT_MATCH_COMMENT) += xt_comment.o
obj-$(CONFIG_NETFILTER_XT_MATCH_CONNBYTES) += xt_connbytes.o

31
net/ipv4/netfilter/ipt_addrtype.c → net/netfilter/xt_addrtype.c
View file

@ -16,12 +16,13 @@
#include <linux/ip.h>
#include <net/route.h>
#include <linux/netfilter_ipv4/ipt_addrtype.h>
#include <linux/netfilter/xt_addrtype.h>
#include <linux/netfilter/x_tables.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
MODULE_DESCRIPTION("Xtables: address type match for IPv4");
MODULE_DESCRIPTION("Xtables: address type match");
MODULE_ALIAS("ipt_addrtype");
static inline bool match_type(struct net *net, const struct net_device *dev,
__be32 addr, u_int16_t mask)
@ -33,7 +34,7 @@ static bool
addrtype_mt_v0(const struct sk_buff *skb, struct xt_action_param *par)
{
struct net *net = dev_net(par->in ? par->in : par->out);
const struct ipt_addrtype_info *info = par->matchinfo;
const struct xt_addrtype_info *info = par->matchinfo;
const struct iphdr *iph = ip_hdr(skb);
bool ret = true;
@ -51,31 +52,31 @@ static bool
addrtype_mt_v1(const struct sk_buff *skb, struct xt_action_param *par)
{
struct net *net = dev_net(par->in ? par->in : par->out);
const struct ipt_addrtype_info_v1 *info = par->matchinfo;
const struct xt_addrtype_info_v1 *info = par->matchinfo;
const struct iphdr *iph = ip_hdr(skb);
const struct net_device *dev = NULL;
bool ret = true;
if (info->flags & IPT_ADDRTYPE_LIMIT_IFACE_IN)
if (info->flags & XT_ADDRTYPE_LIMIT_IFACE_IN)
dev = par->in;
else if (info->flags & IPT_ADDRTYPE_LIMIT_IFACE_OUT)
else if (info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT)
dev = par->out;
if (info->source)
ret &= match_type(net, dev, iph->saddr, info->source) ^
(info->flags & IPT_ADDRTYPE_INVERT_SOURCE);
(info->flags & XT_ADDRTYPE_INVERT_SOURCE);
if (ret && info->dest)
ret &= match_type(net, dev, iph->daddr, info->dest) ^
!!(info->flags & IPT_ADDRTYPE_INVERT_DEST);
!!(info->flags & XT_ADDRTYPE_INVERT_DEST);
return ret;
}
static int addrtype_mt_checkentry_v1(const struct xt_mtchk_param *par)
{
struct ipt_addrtype_info_v1 *info = par->matchinfo;
struct xt_addrtype_info_v1 *info = par->matchinfo;
if (info->flags & IPT_ADDRTYPE_LIMIT_IFACE_IN &&
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_OUT) {
if (info->flags & XT_ADDRTYPE_LIMIT_IFACE_IN &&
info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT) {
pr_info("both incoming and outgoing "
"interface limitation cannot be selected\n");
return -EINVAL;
@ -83,7 +84,7 @@ static int addrtype_mt_checkentry_v1(const struct xt_mtchk_param *par)
if (par->hook_mask & ((1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_LOCAL_IN)) &&
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_OUT) {
info->flags & XT_ADDRTYPE_LIMIT_IFACE_OUT) {
pr_info("output interface limitation "
"not valid in PREROUTING and INPUT\n");
return -EINVAL;
@ -91,7 +92,7 @@ static int addrtype_mt_checkentry_v1(const struct xt_mtchk_param *par)
if (par->hook_mask & ((1 << NF_INET_POST_ROUTING) |
(1 << NF_INET_LOCAL_OUT)) &&
info->flags & IPT_ADDRTYPE_LIMIT_IFACE_IN) {
info->flags & XT_ADDRTYPE_LIMIT_IFACE_IN) {
pr_info("input interface limitation "
"not valid in POSTROUTING and OUTPUT\n");
return -EINVAL;
@ -105,7 +106,7 @@ static struct xt_match addrtype_mt_reg[] __read_mostly = {
.name = "addrtype",
.family = NFPROTO_IPV4,
.match = addrtype_mt_v0,
.matchsize = sizeof(struct ipt_addrtype_info),
.matchsize = sizeof(struct xt_addrtype_info),
.me = THIS_MODULE
},
{
@ -114,7 +115,7 @@ static struct xt_match addrtype_mt_reg[] __read_mostly = {
.revision = 1,
.match = addrtype_mt_v1,
.checkentry = addrtype_mt_checkentry_v1,
.matchsize = sizeof(struct ipt_addrtype_info_v1),
.matchsize = sizeof(struct xt_addrtype_info_v1),
.me = THIS_MODULE
}
};