From 8d4698f7a54a492a1b96c505b30fe750ae3e61d5 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Mon, 8 Sep 2008 13:44:40 -0700
Subject: bridge: don't allow setting hello time to zero

Dushan Tcholich reports that on his system ksoftirqd can consume
between %6 to %10 of cpu time, and cause ~200 context switches per
second.

He then correlated this with a report by bdupree@techfinesse.com:

	http://marc.info/?l=linux-kernel&m=119613299024398&w=2

and the culprit cause seems to be starting the bridge interface.
In particular, when starting the bridge interface, his scripts
are specifying a hello timer interval of "0".

The bridge hello time can't be safely set to values less than 1
second, otherwise it is possible to end up with a runaway timer.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_ioctl.c    |  8 +++++++-
 net/bridge/br_sysfs_br.c | 26 ++++++++++++++++++--------
 2 files changed, 25 insertions(+), 9 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index eeee218eed8..5bbf0736217 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -188,15 +188,21 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		return 0;
 
 	case BRCTL_SET_BRIDGE_HELLO_TIME:
+	{
+		unsigned long t = clock_t_to_jiffies(args[1]);
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
 
+		if (t < HZ)
+			return -EINVAL;
+
 		spin_lock_bh(&br->lock);
-		br->bridge_hello_time = clock_t_to_jiffies(args[1]);
+		br->bridge_hello_time = t;
 		if (br_is_root_bridge(br))
 			br->hello_time = br->bridge_hello_time;
 		spin_unlock_bh(&br->lock);
 		return 0;
+	}
 
 	case BRCTL_SET_BRIDGE_MAX_AGE:
 		if (!capable(CAP_NET_ADMIN))
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 27d6a511c8c..158dee8b496 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -29,11 +29,12 @@
  */
 static ssize_t store_bridge_parm(struct device *d,
 				 const char *buf, size_t len,
-				 void (*set)(struct net_bridge *, unsigned long))
+				 int (*set)(struct net_bridge *, unsigned long))
 {
 	struct net_bridge *br = to_bridge(d);
 	char *endp;
 	unsigned long val;
+	int err;
 
 	if (!capable(CAP_NET_ADMIN))
 		return -EPERM;
@@ -43,9 +44,9 @@ static ssize_t store_bridge_parm(struct device *d,
 		return -EINVAL;
 
 	spin_lock_bh(&br->lock);
-	(*set)(br, val);
+	err = (*set)(br, val);
 	spin_unlock_bh(&br->lock);
-	return len;
+	return err ? err : len;
 }
 
 
@@ -56,12 +57,13 @@ static ssize_t show_forward_delay(struct device *d,
 	return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay));
 }
 
-static void set_forward_delay(struct net_bridge *br, unsigned long val)
+static int set_forward_delay(struct net_bridge *br, unsigned long val)
 {
 	unsigned long delay = clock_t_to_jiffies(val);
 	br->forward_delay = delay;
 	if (br_is_root_bridge(br))
 		br->bridge_forward_delay = delay;
+	return 0;
 }
 
 static ssize_t store_forward_delay(struct device *d,
@@ -80,12 +82,17 @@ static ssize_t show_hello_time(struct device *d, struct device_attribute *attr,
 		       jiffies_to_clock_t(to_bridge(d)->hello_time));
 }
 
-static void set_hello_time(struct net_bridge *br, unsigned long val)
+static int set_hello_time(struct net_bridge *br, unsigned long val)
 {
 	unsigned long t = clock_t_to_jiffies(val);
+
+	if (t < HZ)
+		return -EINVAL;
+
 	br->hello_time = t;
 	if (br_is_root_bridge(br))
 		br->bridge_hello_time = t;
+	return 0;
 }
 
 static ssize_t store_hello_time(struct device *d,
@@ -104,12 +111,13 @@ static ssize_t show_max_age(struct device *d, struct device_attribute *attr,
 		       jiffies_to_clock_t(to_bridge(d)->max_age));
 }
 
-static void set_max_age(struct net_bridge *br, unsigned long val)
+static int set_max_age(struct net_bridge *br, unsigned long val)
 {
 	unsigned long t = clock_t_to_jiffies(val);
 	br->max_age = t;
 	if (br_is_root_bridge(br))
 		br->bridge_max_age = t;
+	return 0;
 }
 
 static ssize_t store_max_age(struct device *d, struct device_attribute *attr,
@@ -126,9 +134,10 @@ static ssize_t show_ageing_time(struct device *d,
 	return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time));
 }
 
-static void set_ageing_time(struct net_bridge *br, unsigned long val)
+static int set_ageing_time(struct net_bridge *br, unsigned long val)
 {
 	br->ageing_time = clock_t_to_jiffies(val);
+	return 0;
 }
 
 static ssize_t store_ageing_time(struct device *d,
@@ -180,9 +189,10 @@ static ssize_t show_priority(struct device *d, struct device_attribute *attr,
 		       (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]);
 }
 
-static void set_priority(struct net_bridge *br, unsigned long val)
+static int set_priority(struct net_bridge *br, unsigned long val)
 {
 	br_stp_set_bridge_priority(br, (u16) val);
+	return 0;
 }
 
 static ssize_t store_priority(struct device *d, struct device_attribute *attr,
-- 
cgit v1.2.3


From 4aa678ba44aa35759c04f300afbc97d3dab5faa2 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 8 Sep 2008 16:19:58 -0700
Subject: netns bridge: allow bridges in netns!

Bridge as netdevice doesn't cross netns boundaries.

Bridge ports and bridge itself live in same netns.

Notifiers are fixed.

netns propagated from userspace socket for setup and teardown.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Stephen Hemminger <shemming@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_device.c   |  3 ++-
 net/bridge/br_if.c       | 11 ++++++-----
 net/bridge/br_ioctl.c    | 20 ++++++++++----------
 net/bridge/br_netlink.c  | 15 +++++----------
 net/bridge/br_notify.c   |  3 ---
 net/bridge/br_private.h  |  4 ++--
 net/bridge/br_stp_bpdu.c |  3 ---
 7 files changed, 25 insertions(+), 34 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 4f52c3d50eb..22ba8632196 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -178,5 +178,6 @@ void br_dev_setup(struct net_device *dev)
 	dev->priv_flags = IFF_EBRIDGE;
 
 	dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
-			NETIF_F_GSO_MASK | NETIF_F_NO_CSUM | NETIF_F_LLTX;
+			NETIF_F_GSO_MASK | NETIF_F_NO_CSUM | NETIF_F_LLTX |
+			NETIF_F_NETNS_LOCAL;
 }
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 63c18aacde8..66c4f7122cf 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -168,7 +168,7 @@ static void del_br(struct net_bridge *br)
 	unregister_netdevice(br->dev);
 }
 
-static struct net_device *new_bridge_dev(const char *name)
+static struct net_device *new_bridge_dev(struct net *net, const char *name)
 {
 	struct net_bridge *br;
 	struct net_device *dev;
@@ -178,6 +178,7 @@ static struct net_device *new_bridge_dev(const char *name)
 
 	if (!dev)
 		return NULL;
+	dev_net_set(dev, net);
 
 	br = netdev_priv(dev);
 	br->dev = dev;
@@ -262,12 +263,12 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
 	return p;
 }
 
-int br_add_bridge(const char *name)
+int br_add_bridge(struct net *net, const char *name)
 {
 	struct net_device *dev;
 	int ret;
 
-	dev = new_bridge_dev(name);
+	dev = new_bridge_dev(net, name);
 	if (!dev)
 		return -ENOMEM;
 
@@ -294,13 +295,13 @@ out_free:
 	goto out;
 }
 
-int br_del_bridge(const char *name)
+int br_del_bridge(struct net *net, const char *name)
 {
 	struct net_device *dev;
 	int ret = 0;
 
 	rtnl_lock();
-	dev = __dev_get_by_name(&init_net, name);
+	dev = __dev_get_by_name(net, name);
 	if (dev == NULL)
 		ret =  -ENXIO; 	/* Could not find device */
 
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index eeee218eed8..3ec1c636e62 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -21,12 +21,12 @@
 #include "br_private.h"
 
 /* called with RTNL */
-static int get_bridge_ifindices(int *indices, int num)
+static int get_bridge_ifindices(struct net *net, int *indices, int num)
 {
 	struct net_device *dev;
 	int i = 0;
 
-	for_each_netdev(&init_net, dev) {
+	for_each_netdev(net, dev) {
 		if (i >= num)
 			break;
 		if (dev->priv_flags & IFF_EBRIDGE)
@@ -89,7 +89,7 @@ static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
 	if (!capable(CAP_NET_ADMIN))
 		return -EPERM;
 
-	dev = dev_get_by_index(&init_net, ifindex);
+	dev = dev_get_by_index(dev_net(br->dev), ifindex);
 	if (dev == NULL)
 		return -EINVAL;
 
@@ -309,7 +309,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	return -EOPNOTSUPP;
 }
 
-static int old_deviceless(void __user *uarg)
+static int old_deviceless(struct net *net, void __user *uarg)
 {
 	unsigned long args[3];
 
@@ -331,7 +331,7 @@ static int old_deviceless(void __user *uarg)
 		if (indices == NULL)
 			return -ENOMEM;
 
-		args[2] = get_bridge_ifindices(indices, args[2]);
+		args[2] = get_bridge_ifindices(net, indices, args[2]);
 
 		ret = copy_to_user((void __user *)args[1], indices, args[2]*sizeof(int))
 			? -EFAULT : args[2];
@@ -354,9 +354,9 @@ static int old_deviceless(void __user *uarg)
 		buf[IFNAMSIZ-1] = 0;
 
 		if (args[0] == BRCTL_ADD_BRIDGE)
-			return br_add_bridge(buf);
+			return br_add_bridge(net, buf);
 
-		return br_del_bridge(buf);
+		return br_del_bridge(net, buf);
 	}
 	}
 
@@ -368,7 +368,7 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *uar
 	switch (cmd) {
 	case SIOCGIFBR:
 	case SIOCSIFBR:
-		return old_deviceless(uarg);
+		return old_deviceless(net, uarg);
 
 	case SIOCBRADDBR:
 	case SIOCBRDELBR:
@@ -383,9 +383,9 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *uar
 
 		buf[IFNAMSIZ-1] = 0;
 		if (cmd == SIOCBRADDBR)
-			return br_add_bridge(buf);
+			return br_add_bridge(net, buf);
 
-		return br_del_bridge(buf);
+		return br_del_bridge(net, buf);
 	}
 	}
 	return -EOPNOTSUPP;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index f155e6ce8a2..ba7be195803 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -82,6 +82,7 @@ nla_put_failure:
  */
 void br_ifinfo_notify(int event, struct net_bridge_port *port)
 {
+	struct net *net = dev_net(port->dev);
 	struct sk_buff *skb;
 	int err = -ENOBUFS;
 
@@ -97,10 +98,10 @@ void br_ifinfo_notify(int event, struct net_bridge_port *port)
 		kfree_skb(skb);
 		goto errout;
 	}
-	err = rtnl_notify(skb, &init_net,0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+	err = rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
 errout:
 	if (err < 0)
-		rtnl_set_sk_err(&init_net, RTNLGRP_LINK, err);
+		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
 }
 
 /*
@@ -112,11 +113,8 @@ static int br_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	struct net_device *dev;
 	int idx;
 
-	if (net != &init_net)
-		return 0;
-
 	idx = 0;
-	for_each_netdev(&init_net, dev) {
+	for_each_netdev(net, dev) {
 		/* not a bridge port */
 		if (dev->br_port == NULL || idx < cb->args[0])
 			goto skip;
@@ -147,9 +145,6 @@ static int br_rtm_setlink(struct sk_buff *skb,  struct nlmsghdr *nlh, void *arg)
 	struct net_bridge_port *p;
 	u8 new_state;
 
-	if (net != &init_net)
-		return -EINVAL;
-
 	if (nlmsg_len(nlh) < sizeof(*ifm))
 		return -EINVAL;
 
@@ -165,7 +160,7 @@ static int br_rtm_setlink(struct sk_buff *skb,  struct nlmsghdr *nlh, void *arg)
 	if (new_state > BR_STATE_BLOCKING)
 		return -EINVAL;
 
-	dev = __dev_get_by_index(&init_net, ifm->ifi_index);
+	dev = __dev_get_by_index(net, ifm->ifi_index);
 	if (!dev)
 		return -ENODEV;
 
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 76340bdd052..763a3ec292e 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -35,9 +35,6 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 	struct net_bridge_port *p = dev->br_port;
 	struct net_bridge *br;
 
-	if (!net_eq(dev_net(dev), &init_net))
-		return NOTIFY_DONE;
-
 	/* not a port of a bridge */
 	if (p == NULL)
 		return NOTIFY_DONE;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index c3dc18ddc04..51eaeaaa58c 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -178,8 +178,8 @@ extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb);
 
 /* br_if.c */
 extern void br_port_carrier_check(struct net_bridge_port *p);
-extern int br_add_bridge(const char *name);
-extern int br_del_bridge(const char *name);
+extern int br_add_bridge(struct net *net, const char *name);
+extern int br_del_bridge(struct net *net, const char *name);
 extern void br_cleanup_bridges(void);
 extern int br_add_if(struct net_bridge *br,
 	      struct net_device *dev);
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 8b200f96f72..81ae40b3f65 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -140,9 +140,6 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 	struct net_bridge *br;
 	const unsigned char *buf;
 
-	if (!net_eq(dev_net(dev), &init_net))
-		goto err;
-
 	if (!p)
 		goto err;
 
-- 
cgit v1.2.3


From 712d6954e3998d0de2840d8130941e8042541246 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 8 Sep 2008 16:20:18 -0700
Subject: netns bridge: cleanup bridges during netns stop

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Stephen Hemminger <shemming@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br.c         | 22 ++++++++++++++++------
 net/bridge/br_if.c      |  4 ++--
 net/bridge/br_private.h |  2 +-
 3 files changed, 19 insertions(+), 9 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/br.c b/net/bridge/br.c
index 573acdf6f9f..4d2c1f1cb52 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -28,6 +28,10 @@ static const struct stp_proto br_stp_proto = {
 	.rcv	= br_stp_rcv,
 };
 
+static struct pernet_operations br_net_ops = {
+	.exit	= br_net_exit,
+};
+
 static int __init br_init(void)
 {
 	int err;
@@ -42,18 +46,22 @@ static int __init br_init(void)
 	if (err)
 		goto err_out;
 
-	err = br_netfilter_init();
+	err = register_pernet_subsys(&br_net_ops);
 	if (err)
 		goto err_out1;
 
-	err = register_netdevice_notifier(&br_device_notifier);
+	err = br_netfilter_init();
 	if (err)
 		goto err_out2;
 
-	err = br_netlink_init();
+	err = register_netdevice_notifier(&br_device_notifier);
 	if (err)
 		goto err_out3;
 
+	err = br_netlink_init();
+	if (err)
+		goto err_out4;
+
 	brioctl_set(br_ioctl_deviceless_stub);
 	br_handle_frame_hook = br_handle_frame;
 
@@ -61,10 +69,12 @@ static int __init br_init(void)
 	br_fdb_put_hook = br_fdb_put;
 
 	return 0;
-err_out3:
+err_out4:
 	unregister_netdevice_notifier(&br_device_notifier);
-err_out2:
+err_out3:
 	br_netfilter_fini();
+err_out2:
+	unregister_pernet_subsys(&br_net_ops);
 err_out1:
 	br_fdb_fini();
 err_out:
@@ -80,7 +90,7 @@ static void __exit br_deinit(void)
 	unregister_netdevice_notifier(&br_device_notifier);
 	brioctl_set(NULL);
 
-	br_cleanup_bridges();
+	unregister_pernet_subsys(&br_net_ops);
 
 	synchronize_net();
 
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 66c4f7122cf..573e20f7dba 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -446,13 +446,13 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 	return 0;
 }
 
-void __exit br_cleanup_bridges(void)
+void br_net_exit(struct net *net)
 {
 	struct net_device *dev;
 
 	rtnl_lock();
 restart:
-	for_each_netdev(&init_net, dev) {
+	for_each_netdev(net, dev) {
 		if (dev->priv_flags & IFF_EBRIDGE) {
 			del_br(dev->priv);
 			goto restart;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 51eaeaaa58c..b6c3b71974d 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -180,7 +180,7 @@ extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb);
 extern void br_port_carrier_check(struct net_bridge_port *p);
 extern int br_add_bridge(struct net *net, const char *name);
 extern int br_del_bridge(struct net *net, const char *name);
-extern void br_cleanup_bridges(void);
+extern void br_net_exit(struct net *net);
 extern int br_add_if(struct net_bridge *br,
 	      struct net_device *dev);
 extern int br_del_if(struct net_bridge *br,
-- 
cgit v1.2.3


From 76108cea065cda58366d16a7eb6ca90d717a1396 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:00 +0200
Subject: netfilter: Use unsigned types for hooknum and pf vars

and (try to) consistently use u_int8_t for the L3 family.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/br_netfilter.c       | 4 ++--
 net/bridge/netfilter/ebt_log.c  | 2 +-
 net/bridge/netfilter/ebt_ulog.c | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 6a9a6cd74b1..a4abed5b4c4 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -657,7 +657,7 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
 {
 	struct nf_bridge_info *nf_bridge;
 	struct net_device *parent;
-	int pf;
+	u_int8_t pf;
 
 	if (!skb->nf_bridge)
 		return NF_ACCEPT;
@@ -791,7 +791,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
 {
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 	struct net_device *realoutdev = bridge_parent(skb->dev);
-	int pf;
+	u_int8_t pf;
 
 #ifdef CONFIG_NETFILTER_DEBUG
 	/* Be very paranoid. This probably won't happen anymore, but let's
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 2f430d4ae91..3770cd8a7b3 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -84,7 +84,7 @@ print_ports(const struct sk_buff *skb, uint8_t protocol, int offset)
 
 #define myNIPQUAD(a) a[0], a[1], a[2], a[3]
 static void
-ebt_log_packet(unsigned int pf, unsigned int hooknum,
+ebt_log_packet(u_int8_t pf, unsigned int hooknum,
    const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out, const struct nf_loginfo *loginfo,
    const char *prefix)
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 2d4c9ef909f..c84bda61afb 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -223,7 +223,7 @@ alloc_failure:
 }
 
 /* this function is registered with the netfilter core */
-static void ebt_log_packet(unsigned int pf, unsigned int hooknum,
+static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
    const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out, const struct nf_loginfo *li,
    const char *prefix)
-- 
cgit v1.2.3


From ee999d8b9573df1b547aacdc6d79f86eb79c25cd Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:01 +0200
Subject: netfilter: x_tables: use NFPROTO_* in extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_log.c  | 6 +++---
 net/bridge/netfilter/ebt_ulog.c | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 3770cd8a7b3..8b17c64bcd7 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -206,10 +206,10 @@ static void ebt_log(const struct sk_buff *skb, unsigned int hooknr,
 	li.u.log.logflags = info->bitmask;
 
 	if (info->bitmask & EBT_LOG_NFLOG)
-		nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li,
+		nf_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
 			      "%s", info->prefix);
 	else
-		ebt_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li,
+		ebt_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
 			       info->prefix);
 }
 
@@ -234,7 +234,7 @@ static int __init ebt_log_init(void)
 	ret = ebt_register_watcher(&log);
 	if (ret < 0)
 		return ret;
-	nf_log_register(PF_BRIDGE, &ebt_log_logger);
+	nf_log_register(NFPROTO_BRIDGE, &ebt_log_logger);
 	return 0;
 }
 
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index c84bda61afb..3b1678cd66f 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -310,7 +310,7 @@ static int __init ebt_ulog_init(void)
 		netlink_kernel_release(ebtulognl);
 
 	if (ret == 0)
-		nf_log_register(PF_BRIDGE, &ebt_ulog_logger);
+		nf_log_register(NFPROTO_BRIDGE, &ebt_ulog_logger);
 
 	return ret;
 }
-- 
cgit v1.2.3


From 18219d3f7d6a5bc43825a41e0763158efbdb80d3 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:13 +0200
Subject: netfilter: ebtables: do centralized size checking

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c    |  7 +++---
 net/bridge/netfilter/ebt_among.c    |  1 +
 net/bridge/netfilter/ebt_arp.c      |  9 ++++----
 net/bridge/netfilter/ebt_arpreply.c |  9 ++++----
 net/bridge/netfilter/ebt_dnat.c     |  9 ++++----
 net/bridge/netfilter/ebt_ip.c       |  9 ++++----
 net/bridge/netfilter/ebt_ip6.c      |  9 ++++----
 net/bridge/netfilter/ebt_limit.c    | 11 ++++------
 net/bridge/netfilter/ebt_log.c      | 11 +++++-----
 net/bridge/netfilter/ebt_mark.c     |  6 +++---
 net/bridge/netfilter/ebt_mark_m.c   |  7 +++---
 net/bridge/netfilter/ebt_nflog.c    |  4 ++--
 net/bridge/netfilter/ebt_pkttype.c  |  7 +++---
 net/bridge/netfilter/ebt_redirect.c | 11 +++++-----
 net/bridge/netfilter/ebt_snat.c     | 11 +++++-----
 net/bridge/netfilter/ebt_stp.c      | 10 ++++-----
 net/bridge/netfilter/ebt_ulog.c     |  5 +++--
 net/bridge/netfilter/ebt_vlan.c     | 10 ++-------
 net/bridge/netfilter/ebtables.c     | 43 ++++++++++++++++++++++++++++++++-----
 19 files changed, 101 insertions(+), 88 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 98534025360..ccecfbd2a25 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -7,10 +7,10 @@
  * May 2003
  *
  */
-
+#include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_802_3.h>
-#include <linux/module.h>
 
 static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
@@ -42,8 +42,6 @@ static int ebt_802_3_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_802_3_info *info = data;
 
-	if (datalen < sizeof(struct ebt_802_3_info))
-		return -EINVAL;
 	if (info->bitmask & ~EBT_802_3_MASK || info->invflags & ~EBT_802_3_MASK)
 		return -EINVAL;
 
@@ -54,6 +52,7 @@ static struct ebt_match filter_802_3 __read_mostly = {
 	.name		= EBT_802_3_MATCH,
 	.match		= ebt_filter_802_3,
 	.check		= ebt_802_3_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_802_3_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 70b6dca5ea7..b0acb13a390 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -216,6 +216,7 @@ static struct ebt_match filter_among __read_mostly = {
 	.name		= EBT_AMONG_MATCH,
 	.match		= ebt_filter_among,
 	.check		= ebt_among_check,
+	.matchsize	= -1, /* special case */
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index 7c535be7566..385f9cb85bc 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -8,12 +8,12 @@
  *  April, 2002
  *
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_arp.h>
 #include <linux/if_arp.h>
 #include <linux/if_ether.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_arp.h>
 
 static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
@@ -105,8 +105,6 @@ static int ebt_arp_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_arp_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_arp_info)))
-		return -EINVAL;
 	if ((e->ethproto != htons(ETH_P_ARP) &&
 	   e->ethproto != htons(ETH_P_RARP)) ||
 	   e->invflags & EBT_IPROTO)
@@ -120,6 +118,7 @@ static struct ebt_match filter_arp __read_mostly = {
 	.name		= EBT_ARP_MATCH,
 	.match		= ebt_filter_arp,
 	.check		= ebt_arp_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_arp_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 0c4279590fc..a860ea6da46 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -8,12 +8,12 @@
  *  August, 2003
  *
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_arpreply.h>
 #include <linux/if_arp.h>
 #include <net/arp.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_arpreply.h>
 
 static int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
@@ -63,8 +63,6 @@ static int ebt_target_reply_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_arpreply_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_arpreply_info)))
-		return -EINVAL;
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return -EINVAL;
 	if (e->ethproto != htons(ETH_P_ARP) ||
@@ -80,6 +78,7 @@ static struct ebt_target reply_target __read_mostly = {
 	.name		= EBT_ARPREPLY_TARGET,
 	.target		= ebt_target_reply,
 	.check		= ebt_target_reply_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_arpreply_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index ca64c1cc1b4..c2be41e8bb9 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -7,12 +7,12 @@
  *  June, 2002
  *
  */
-
+#include <linux/module.h>
+#include <net/sock.h>
 #include <linux/netfilter.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
-#include <linux/module.h>
-#include <net/sock.h>
 
 static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
@@ -39,8 +39,6 @@ static int ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
 	   (hookmask & ~((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT)))) &&
 	   (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
 		return -EINVAL;
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
-		return -EINVAL;
 	if (INVALID_TARGET)
 		return -EINVAL;
 	return 0;
@@ -50,6 +48,7 @@ static struct ebt_target dnat __read_mostly = {
 	.name		= EBT_DNAT_TARGET,
 	.target		= ebt_target_dnat,
 	.check		= ebt_target_dnat_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index 65caa00dcf2..c1ae2547e3d 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -11,13 +11,13 @@
  *    Innominate Security Technologies AG <mhopf@innominate.com>
  *    September, 2002
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_ip.h>
 #include <linux/ip.h>
 #include <net/ip.h>
 #include <linux/in.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_ip.h>
 
 struct tcpudphdr {
 	__be16 src;
@@ -83,8 +83,6 @@ static int ebt_ip_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_ip_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_ip_info)))
-		return -EINVAL;
 	if (e->ethproto != htons(ETH_P_IP) ||
 	   e->invflags & EBT_IPROTO)
 		return -EINVAL;
@@ -111,6 +109,7 @@ static struct ebt_match filter_ip __read_mostly = {
 	.name		= EBT_IP_MATCH,
 	.match		= ebt_filter_ip,
 	.check		= ebt_ip_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 36efb3a7524..554dd68637c 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -13,14 +13,14 @@
  *
  *  Jan, 2008
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_ip6.h>
 #include <linux/ipv6.h>
 #include <net/ipv6.h>
 #include <linux/in.h>
 #include <linux/module.h>
 #include <net/dsfield.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_ip6.h>
 
 struct tcpudphdr {
 	__be16 src;
@@ -97,8 +97,6 @@ static int ebt_ip6_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_ip6_info)))
-		return -EINVAL;
 	if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
 		return -EINVAL;
 	if (info->bitmask & ~EBT_IP6_MASK || info->invflags & ~EBT_IP6_MASK)
@@ -125,6 +123,7 @@ static struct ebt_match filter_ip6 =
 	.name		= EBT_IP6_MATCH,
 	.match		= ebt_filter_ip6,
 	.check		= ebt_ip6_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip6_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 8cbdc01c253..3d71f3510ff 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -10,13 +10,12 @@
  *  September, 2003
  *
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_limit.h>
 #include <linux/module.h>
-
 #include <linux/netdevice.h>
 #include <linux/spinlock.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_limit.h>
 
 static DEFINE_SPINLOCK(limit_lock);
 
@@ -71,9 +70,6 @@ static int ebt_limit_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_limit_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_limit_info)))
-		return -EINVAL;
-
 	/* Check for overflow. */
 	if (info->burst == 0 ||
 	    user2credits(info->avg * info->burst) < user2credits(info->avg)) {
@@ -94,6 +90,7 @@ static struct ebt_match ebt_limit_reg __read_mostly = {
 	.name		= EBT_LIMIT_MATCH,
 	.match		= ebt_limit_match,
 	.check		= ebt_limit_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_limit_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 8b17c64bcd7..d9596f114a3 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -8,10 +8,6 @@
  *  April, 2002
  *
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_log.h>
-#include <linux/netfilter.h>
 #include <linux/module.h>
 #include <linux/ip.h>
 #include <linux/in.h>
@@ -21,6 +17,10 @@
 #include <linux/ipv6.h>
 #include <net/ipv6.h>
 #include <linux/in6.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_log.h>
+#include <linux/netfilter.h>
 
 static DEFINE_SPINLOCK(ebt_log_lock);
 
@@ -29,8 +29,6 @@ static int ebt_log_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_log_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_log_info)))
-		return -EINVAL;
 	if (info->bitmask & ~EBT_LOG_MASK)
 		return -EINVAL;
 	if (info->loglevel >= 8)
@@ -218,6 +216,7 @@ static struct ebt_watcher log =
 	.name		= EBT_LOG_WATCHER,
 	.watcher	= ebt_log,
 	.check		= ebt_log_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_log_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index 36723f47db0..bb02412786c 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -13,9 +13,10 @@
  * Marking a frame doesn't really change anything in the frame anyway.
  */
 
+#include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_t.h>
-#include <linux/module.h>
 
 static int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
@@ -42,8 +43,6 @@ static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,
 	const struct ebt_mark_t_info *info = data;
 	int tmp;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_t_info)))
-		return -EINVAL;
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
 		return -EINVAL;
@@ -61,6 +60,7 @@ static struct ebt_target mark_target __read_mostly = {
 	.name		= EBT_MARK_TARGET,
 	.target		= ebt_target_mark,
 	.check		= ebt_target_mark_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_mark_t_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index 9b0a4543861..b8ce9eb7170 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -7,10 +7,10 @@
  *  July, 2002
  *
  */
-
+#include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_m.h>
-#include <linux/module.h>
 
 static int ebt_filter_mark(const struct sk_buff *skb,
    const struct net_device *in, const struct net_device *out, const void *data,
@@ -28,8 +28,6 @@ static int ebt_mark_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_mark_m_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_m_info)))
-		return -EINVAL;
 	if (info->bitmask & ~EBT_MARK_MASK)
 		return -EINVAL;
 	if ((info->bitmask & EBT_MARK_OR) && (info->bitmask & EBT_MARK_AND))
@@ -43,6 +41,7 @@ static struct ebt_match filter_mark __read_mostly = {
 	.name		= EBT_MARK_MATCH,
 	.match		= ebt_filter_mark,
 	.check		= ebt_mark_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_mark_m_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 8e799aa9e56..88ceb5eb849 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -14,6 +14,7 @@
 
 #include <linux/module.h>
 #include <linux/spinlock.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nflog.h>
 #include <net/netfilter/nf_log.h>
@@ -42,8 +43,6 @@ static int ebt_nflog_check(const char *tablename,
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_nflog_info)))
-		return -EINVAL;
 	if (info->flags & ~EBT_NFLOG_MASK)
 		return -EINVAL;
 	info->prefix[EBT_NFLOG_PREFIX_SIZE - 1] = '\0';
@@ -54,6 +53,7 @@ static struct ebt_watcher nflog __read_mostly = {
 	.name = EBT_NFLOG_WATCHER,
 	.watcher = ebt_nflog,
 	.check = ebt_nflog_check,
+	.targetsize = XT_ALIGN(sizeof(struct ebt_nflog_info)),
 	.me = THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 676db32df3d..019026177f8 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -7,10 +7,10 @@
  *  April, 2003
  *
  */
-
+#include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_pkttype.h>
-#include <linux/module.h>
 
 static int ebt_filter_pkttype(const struct sk_buff *skb,
    const struct net_device *in,
@@ -28,8 +28,6 @@ static int ebt_pkttype_check(const char *tablename, unsigned int hookmask,
 {
 	const struct ebt_pkttype_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_pkttype_info)))
-		return -EINVAL;
 	if (info->invert != 0 && info->invert != 1)
 		return -EINVAL;
 	/* Allow any pkt_type value */
@@ -40,6 +38,7 @@ static struct ebt_match filter_pkttype __read_mostly = {
 	.name		= EBT_PKTTYPE_MATCH,
 	.match		= ebt_filter_pkttype,
 	.check		= ebt_pkttype_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_pkttype_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index b8afe850cf1..04053268386 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -7,13 +7,13 @@
  *  April, 2002
  *
  */
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_redirect.h>
 #include <linux/module.h>
 #include <net/sock.h>
 #include "../br_private.h"
+#include <linux/netfilter.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_redirect.h>
 
 static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
@@ -38,8 +38,6 @@ static int ebt_target_redirect_check(const char *tablename, unsigned int hookmas
 {
 	const struct ebt_redirect_info *info = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_redirect_info)))
-		return -EINVAL;
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return -EINVAL;
 	CLEAR_BASE_CHAIN_BIT;
@@ -55,6 +53,7 @@ static struct ebt_target redirect_target __read_mostly = {
 	.name		= EBT_REDIRECT_TARGET,
 	.target		= ebt_target_redirect,
 	.check		= ebt_target_redirect_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_redirect_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index 5425333dda0..abfbc6c9502 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -7,14 +7,14 @@
  *  June, 2002
  *
  */
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_nat.h>
 #include <linux/module.h>
 #include <net/sock.h>
 #include <linux/if_arp.h>
 #include <net/arp.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_nat.h>
 
 static int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
@@ -49,8 +49,6 @@ static int ebt_target_snat_check(const char *tablename, unsigned int hookmask,
 	const struct ebt_nat_info *info = data;
 	int tmp;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
-		return -EINVAL;
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
 		return -EINVAL;
@@ -72,6 +70,7 @@ static struct ebt_target snat __read_mostly = {
 	.name		= EBT_SNAT_TARGET,
 	.target		= ebt_target_snat,
 	.check		= ebt_target_snat_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 40f36d37607..c7a0a00dac7 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -7,11 +7,11 @@
  *
  *  July, 2003
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_stp.h>
 #include <linux/etherdevice.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_stp.h>
 
 #define BPDU_TYPE_CONFIG 0
 #define BPDU_TYPE_TCN 0x80
@@ -157,15 +157,12 @@ static int ebt_stp_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_stp_info *info = data;
-	const unsigned int len = EBT_ALIGN(sizeof(struct ebt_stp_info));
 	const uint8_t bridge_ula[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
 	const uint8_t msk[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
 	if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
 	    !(info->bitmask & EBT_STP_MASK))
 		return -EINVAL;
-	if (datalen != len)
-		return -EINVAL;
 	/* Make sure the match only receives stp frames */
 	if (compare_ether_addr(e->destmac, bridge_ula) ||
 	    compare_ether_addr(e->destmsk, msk) || !(e->bitmask & EBT_DESTMAC))
@@ -178,6 +175,7 @@ static struct ebt_match filter_stp __read_mostly = {
 	.name		= EBT_STP_MATCH,
 	.match		= ebt_filter_stp,
 	.check		= ebt_stp_check,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_stp_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 3b1678cd66f..bdd8a27bba9 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -36,6 +36,7 @@
 #include <linux/timer.h>
 #include <linux/netlink.h>
 #include <linux/netdevice.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_ulog.h>
 #include <net/netfilter/nf_log.h>
@@ -260,8 +261,7 @@ static int ebt_ulog_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_ulog_info *uloginfo = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_ulog_info)) ||
-	    uloginfo->nlgroup > 31)
+	if (uloginfo->nlgroup > 31)
 		return -EINVAL;
 
 	uloginfo->prefix[EBT_ULOG_PREFIX_LEN - 1] = '\0';
@@ -276,6 +276,7 @@ static struct ebt_watcher ulog __read_mostly = {
 	.name		= EBT_ULOG_WATCHER,
 	.watcher	= ebt_ulog,
 	.check		= ebt_ulog_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_ulog_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index ab60b0dade8..4dba47aefc8 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -22,6 +22,7 @@
 #include <linux/if_vlan.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_vlan.h>
 
@@ -93,14 +94,6 @@ ebt_check_vlan(const char *tablename,
 {
 	struct ebt_vlan_info *info = data;
 
-	/* Parameters buffer overflow check */
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_vlan_info))) {
-		DEBUG_MSG
-		    ("passed size %d is not eq to ebt_vlan_info (%Zd)\n",
-		     datalen, sizeof(struct ebt_vlan_info));
-		return -EINVAL;
-	}
-
 	/* Is it 802.1Q frame checked? */
 	if (e->ethproto != htons(ETH_P_8021Q)) {
 		DEBUG_MSG
@@ -173,6 +166,7 @@ static struct ebt_match filter_vlan __read_mostly = {
 	.name		= EBT_VLAN_MATCH,
 	.match		= ebt_filter_vlan,
 	.check		= ebt_check_vlan,
+	.matchsize	= XT_ALIGN(sizeof(struct ebt_vlan_info)),
 	.me		= THIS_MODULE,
 };
 
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 32afff859e4..b04e288d20f 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -19,6 +19,7 @@
 #include <linux/kmod.h>
 #include <linux/module.h>
 #include <linux/vmalloc.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
@@ -59,8 +60,9 @@ static LIST_HEAD(ebt_targets);
 static LIST_HEAD(ebt_matches);
 static LIST_HEAD(ebt_watchers);
 
-static struct ebt_target ebt_standard_target =
-{ {NULL, NULL}, EBT_STANDARD_TARGET, NULL, NULL, NULL, NULL};
+static struct ebt_target ebt_standard_target = {
+	.name = "standard",
+};
 
 static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
    const struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
@@ -350,6 +352,18 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		return -ENOENT;
 	}
 	mutex_unlock(&ebt_mutex);
+	if (XT_ALIGN(match->matchsize) != m->match_size &&
+	    match->matchsize != -1) {
+		/*
+		 * ebt_among is exempt from centralized matchsize checking
+		 * because it uses a dynamic-size data set.
+		 */
+		printk(KERN_WARNING "ebtables: %s match: "
+		       "invalid size %Zu != %u\n",
+		       match->name, XT_ALIGN(match->matchsize), m->match_size);
+		module_put(match->me);
+		return -EINVAL;
+	}
 	if (match->check &&
 	   match->check(name, hookmask, e, m->data, m->match_size) != 0) {
 		BUGPRINT("match->check failed\n");
@@ -380,6 +394,14 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 		return -ENOENT;
 	}
 	mutex_unlock(&ebt_mutex);
+	if (XT_ALIGN(watcher->targetsize) != w->watcher_size) {
+		printk(KERN_WARNING "ebtables: %s watcher: "
+		       "invalid size %Zu != %u\n",
+		       watcher->name, XT_ALIGN(watcher->targetsize),
+		       w->watcher_size);
+		module_put(watcher->me);
+		return -EINVAL;
+	}
 	if (watcher->check &&
 	   watcher->check(name, hookmask, e, w->data, w->watcher_size) != 0) {
 		BUGPRINT("watcher->check failed\n");
@@ -681,9 +703,20 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 			ret = -EFAULT;
 			goto cleanup_watchers;
 		}
-	} else if (t->target_size > gap - sizeof(struct ebt_entry_target) ||
-	   (t->u.target->check &&
-	   t->u.target->check(name, hookmask, e, t->data, t->target_size) != 0)){
+	} else if (t->target_size > gap - sizeof(struct ebt_entry_target)) {
+		module_put(t->u.target->me);
+		ret = -EFAULT;
+		goto cleanup_watchers;
+	} else if (XT_ALIGN(target->targetsize) != t->target_size) {
+		printk(KERN_WARNING "ebtables: %s target: "
+		       "invalid size %Zu != %u\n",
+		       target->name, XT_ALIGN(target->targetsize),
+		       t->target_size);
+		module_put(t->u.target->me);
+		ret = -EINVAL;
+		goto cleanup_watchers;
+	} else if (t->u.target->check &&
+	    t->u.target->check(name, hookmask, e, t->data, t->target_size) != 0) {
 		module_put(t->u.target->me);
 		ret = -EFAULT;
 		goto cleanup_watchers;
-- 
cgit v1.2.3


From 19eda879a136889110c692dec4c2ab59e0e43cef Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:13 +0200
Subject: netfilter: change return types of check functions for Ebtables
 extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c    |  6 +++---
 net/bridge/netfilter/ebt_among.c    | 15 ++++++++-------
 net/bridge/netfilter/ebt_arp.c      |  8 ++++----
 net/bridge/netfilter/ebt_arpreply.c | 10 +++++-----
 net/bridge/netfilter/ebt_dnat.c     | 10 +++++-----
 net/bridge/netfilter/ebt_ip.c       | 16 ++++++++--------
 net/bridge/netfilter/ebt_ip6.c      | 16 ++++++++--------
 net/bridge/netfilter/ebt_limit.c    |  6 +++---
 net/bridge/netfilter/ebt_log.c      |  8 ++++----
 net/bridge/netfilter/ebt_mark.c     | 10 +++++-----
 net/bridge/netfilter/ebt_mark_m.c   | 10 +++++-----
 net/bridge/netfilter/ebt_nflog.c    | 12 ++++++------
 net/bridge/netfilter/ebt_pkttype.c  |  6 +++---
 net/bridge/netfilter/ebt_redirect.c | 10 +++++-----
 net/bridge/netfilter/ebt_snat.c     | 14 +++++++-------
 net/bridge/netfilter/ebt_stp.c      |  8 ++++----
 net/bridge/netfilter/ebt_ulog.c     | 21 ++++++++++++---------
 net/bridge/netfilter/ebt_vlan.c     | 16 ++++++++--------
 net/bridge/netfilter/ebtables.c     |  6 +++---
 19 files changed, 106 insertions(+), 102 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index ccecfbd2a25..868df9c1e42 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -37,15 +37,15 @@ static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *
 }
 
 static struct ebt_match filter_802_3;
-static int ebt_802_3_check(const char *tablename, unsigned int hookmask,
+static bool ebt_802_3_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_802_3_info *info = data;
 
 	if (info->bitmask & ~EBT_802_3_MASK || info->invflags & ~EBT_802_3_MASK)
-		return -EINVAL;
+		return false;
 
-	return 0;
+	return true;
 }
 
 static struct ebt_match filter_802_3 __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index b0acb13a390..95e2e70ac90 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -177,9 +177,10 @@ static int ebt_filter_among(const struct sk_buff *skb,
 	return EBT_MATCH;
 }
 
-static int ebt_among_check(const char *tablename, unsigned int hookmask,
-			   const struct ebt_entry *e, void *data,
-			   unsigned int datalen)
+static bool
+ebt_among_check(const char *tablename, unsigned int hookmask,
+		const struct ebt_entry *e, void *data,
+		unsigned int datalen)
 {
 	const struct ebt_among_info *info = data;
 	int expected_length = sizeof(struct ebt_among_info);
@@ -197,19 +198,19 @@ static int ebt_among_check(const char *tablename, unsigned int hookmask,
 		       "against expected %d, rounded to %Zd\n",
 		       datalen, expected_length,
 		       EBT_ALIGN(expected_length));
-		return -EINVAL;
+		return false;
 	}
 	if (wh_dst && (err = ebt_mac_wormhash_check_integrity(wh_dst))) {
 		printk(KERN_WARNING
 		       "ebtables: among: dst integrity fail: %x\n", -err);
-		return -EINVAL;
+		return false;
 	}
 	if (wh_src && (err = ebt_mac_wormhash_check_integrity(wh_src))) {
 		printk(KERN_WARNING
 		       "ebtables: among: src integrity fail: %x\n", -err);
-		return -EINVAL;
+		return false;
 	}
-	return 0;
+	return true;
 }
 
 static struct ebt_match filter_among __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index 385f9cb85bc..cb33672380d 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -100,7 +100,7 @@ static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in
 	return EBT_MATCH;
 }
 
-static int ebt_arp_check(const char *tablename, unsigned int hookmask,
+static bool ebt_arp_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_arp_info *info = data;
@@ -108,10 +108,10 @@ static int ebt_arp_check(const char *tablename, unsigned int hookmask,
 	if ((e->ethproto != htons(ETH_P_ARP) &&
 	   e->ethproto != htons(ETH_P_RARP)) ||
 	   e->invflags & EBT_IPROTO)
-		return -EINVAL;
+		return false;
 	if (info->bitmask & ~EBT_ARP_MASK || info->invflags & ~EBT_ARP_MASK)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_match filter_arp __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index a860ea6da46..c298d3deffa 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -58,20 +58,20 @@ static int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
 	return info->target;
 }
 
-static int ebt_target_reply_check(const char *tablename, unsigned int hookmask,
+static bool ebt_target_reply_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_arpreply_info *info = data;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
-		return -EINVAL;
+		return false;
 	if (e->ethproto != htons(ETH_P_ARP) ||
 	    e->invflags & EBT_IPROTO)
-		return -EINVAL;
+		return false;
 	CLEAR_BASE_CHAIN_BIT;
 	if (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING))
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_target reply_target __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index c2be41e8bb9..6ddea2184e9 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -27,21 +27,21 @@ static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
 	return info->target;
 }
 
-static int ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
+static bool ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_nat_info *info = data;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
-		return -EINVAL;
+		return false;
 	CLEAR_BASE_CHAIN_BIT;
 	if ( (strcmp(tablename, "nat") ||
 	   (hookmask & ~((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT)))) &&
 	   (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
-		return -EINVAL;
+		return false;
 	if (INVALID_TARGET)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_target dnat __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index c1ae2547e3d..cbf0918ec16 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -78,31 +78,31 @@ static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in,
 	return EBT_MATCH;
 }
 
-static int ebt_ip_check(const char *tablename, unsigned int hookmask,
+static bool ebt_ip_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_ip_info *info = data;
 
 	if (e->ethproto != htons(ETH_P_IP) ||
 	   e->invflags & EBT_IPROTO)
-		return -EINVAL;
+		return false;
 	if (info->bitmask & ~EBT_IP_MASK || info->invflags & ~EBT_IP_MASK)
-		return -EINVAL;
+		return false;
 	if (info->bitmask & (EBT_IP_DPORT | EBT_IP_SPORT)) {
 		if (info->invflags & EBT_IP_PROTO)
-			return -EINVAL;
+			return false;
 		if (info->protocol != IPPROTO_TCP &&
 		    info->protocol != IPPROTO_UDP &&
 		    info->protocol != IPPROTO_UDPLITE &&
 		    info->protocol != IPPROTO_SCTP &&
 		    info->protocol != IPPROTO_DCCP)
-			 return -EINVAL;
+			 return false;
 	}
 	if (info->bitmask & EBT_IP_DPORT && info->dport[0] > info->dport[1])
-		return -EINVAL;
+		return false;
 	if (info->bitmask & EBT_IP_SPORT && info->sport[0] > info->sport[1])
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_match filter_ip __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 554dd68637c..1230c9ee394 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -92,30 +92,30 @@ static int ebt_filter_ip6(const struct sk_buff *skb,
 	return EBT_MATCH;
 }
 
-static int ebt_ip6_check(const char *tablename, unsigned int hookmask,
+static bool ebt_ip6_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
 
 	if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
-		return -EINVAL;
+		return false;
 	if (info->bitmask & ~EBT_IP6_MASK || info->invflags & ~EBT_IP6_MASK)
-		return -EINVAL;
+		return false;
 	if (info->bitmask & (EBT_IP6_DPORT | EBT_IP6_SPORT)) {
 		if (info->invflags & EBT_IP6_PROTO)
-			return -EINVAL;
+			return false;
 		if (info->protocol != IPPROTO_TCP &&
 		    info->protocol != IPPROTO_UDP &&
 		    info->protocol != IPPROTO_UDPLITE &&
 		    info->protocol != IPPROTO_SCTP &&
 		    info->protocol != IPPROTO_DCCP)
-			 return -EINVAL;
+			return false;
 	}
 	if (info->bitmask & EBT_IP6_DPORT && info->dport[0] > info->dport[1])
-		return -EINVAL;
+		return false;
 	if (info->bitmask & EBT_IP6_SPORT && info->sport[0] > info->sport[1])
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_match filter_ip6 =
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 3d71f3510ff..9b04f2be94e 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -65,7 +65,7 @@ user2credits(u_int32_t user)
 	return (user * HZ * CREDITS_PER_JIFFY) / EBT_LIMIT_SCALE;
 }
 
-static int ebt_limit_check(const char *tablename, unsigned int hookmask,
+static bool ebt_limit_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	struct ebt_limit_info *info = data;
@@ -75,7 +75,7 @@ static int ebt_limit_check(const char *tablename, unsigned int hookmask,
 	    user2credits(info->avg * info->burst) < user2credits(info->avg)) {
 		printk("Overflow in ebt_limit, try lower: %u/%u\n",
 			info->avg, info->burst);
-		return -EINVAL;
+		return false;
 	}
 
 	/* User avg in seconds * EBT_LIMIT_SCALE: convert to jiffies * 128. */
@@ -83,7 +83,7 @@ static int ebt_limit_check(const char *tablename, unsigned int hookmask,
 	info->credit = user2credits(info->avg * info->burst);
 	info->credit_cap = user2credits(info->avg * info->burst);
 	info->cost = user2credits(info->avg);
-	return 0;
+	return true;
 }
 
 static struct ebt_match ebt_limit_reg __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index d9596f114a3..f3d6d5ec2dc 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -24,17 +24,17 @@
 
 static DEFINE_SPINLOCK(ebt_log_lock);
 
-static int ebt_log_check(const char *tablename, unsigned int hookmask,
+static bool ebt_log_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	struct ebt_log_info *info = data;
 
 	if (info->bitmask & ~EBT_LOG_MASK)
-		return -EINVAL;
+		return false;
 	if (info->loglevel >= 8)
-		return -EINVAL;
+		return false;
 	info->prefix[EBT_LOG_PREFIX_SIZE - 1] = '\0';
-	return 0;
+	return true;
 }
 
 struct tcpudphdr
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index bb02412786c..b85c73895ae 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -37,7 +37,7 @@ static int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,
+static bool ebt_target_mark_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_mark_t_info *info = data;
@@ -45,15 +45,15 @@ static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,
 
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
-		return -EINVAL;
+		return false;
 	CLEAR_BASE_CHAIN_BIT;
 	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
-		return -EINVAL;
+		return false;
 	tmp = info->target & ~EBT_VERDICT_BITS;
 	if (tmp != MARK_SET_VALUE && tmp != MARK_OR_VALUE &&
 	    tmp != MARK_AND_VALUE && tmp != MARK_XOR_VALUE)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_target mark_target __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index b8ce9eb7170..b2707d772c9 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -23,18 +23,18 @@ static int ebt_filter_mark(const struct sk_buff *skb,
 	return !(((skb->mark & info->mask) == info->mark) ^ info->invert);
 }
 
-static int ebt_mark_check(const char *tablename, unsigned int hookmask,
+static bool ebt_mark_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_mark_m_info *info = data;
 
 	if (info->bitmask & ~EBT_MARK_MASK)
-		return -EINVAL;
+		return false;
 	if ((info->bitmask & EBT_MARK_OR) && (info->bitmask & EBT_MARK_AND))
-		return -EINVAL;
+		return false;
 	if (!info->bitmask)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_match filter_mark __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 88ceb5eb849..a6954eb3f58 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -36,17 +36,17 @@ static void ebt_nflog(const struct sk_buff *skb,
 	nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li, "%s", info->prefix);
 }
 
-static int ebt_nflog_check(const char *tablename,
-			   unsigned int hookmask,
-			   const struct ebt_entry *e,
-			   void *data, unsigned int datalen)
+static bool ebt_nflog_check(const char *tablename,
+			    unsigned int hookmask,
+			    const struct ebt_entry *e,
+			    void *data, unsigned int datalen)
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 
 	if (info->flags & ~EBT_NFLOG_MASK)
-		return -EINVAL;
+		return false;
 	info->prefix[EBT_NFLOG_PREFIX_SIZE - 1] = '\0';
-	return 0;
+	return true;
 }
 
 static struct ebt_watcher nflog __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 019026177f8..4dcd3b86cff 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -23,15 +23,15 @@ static int ebt_filter_pkttype(const struct sk_buff *skb,
 	return (skb->pkt_type != info->pkt_type) ^ info->invert;
 }
 
-static int ebt_pkttype_check(const char *tablename, unsigned int hookmask,
+static bool ebt_pkttype_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_pkttype_info *info = data;
 
 	if (info->invert != 0 && info->invert != 1)
-		return -EINVAL;
+		return false;
 	/* Allow any pkt_type value */
-	return 0;
+	return true;
 }
 
 static struct ebt_match filter_pkttype __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 04053268386..d2076f4227c 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -33,20 +33,20 @@ static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr,
 	return info->target;
 }
 
-static int ebt_target_redirect_check(const char *tablename, unsigned int hookmask,
+static bool ebt_target_redirect_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_redirect_info *info = data;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
-		return -EINVAL;
+		return false;
 	CLEAR_BASE_CHAIN_BIT;
 	if ( (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING)) &&
 	     (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
-		return -EINVAL;
+		return false;
 	if (INVALID_TARGET)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_target redirect_target __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index abfbc6c9502..5a5a16acca0 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -43,7 +43,7 @@ out:
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static int ebt_target_snat_check(const char *tablename, unsigned int hookmask,
+static bool ebt_target_snat_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_nat_info *info = data;
@@ -51,19 +51,19 @@ static int ebt_target_snat_check(const char *tablename, unsigned int hookmask,
 
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
-		return -EINVAL;
+		return false;
 	CLEAR_BASE_CHAIN_BIT;
 	if (strcmp(tablename, "nat"))
-		return -EINVAL;
+		return false;
 	if (hookmask & ~(1 << NF_BR_POST_ROUTING))
-		return -EINVAL;
+		return false;
 
 	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
-		return -EINVAL;
+		return false;
 	tmp = info->target | EBT_VERDICT_BITS;
 	if ((tmp & ~NAT_ARP_BIT) != ~NAT_ARP_BIT)
-		return -EINVAL;
-	return 0;
+		return false;
+	return true;
 }
 
 static struct ebt_target snat __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index c7a0a00dac7..37d9480a00c 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -153,7 +153,7 @@ static int ebt_filter_stp(const struct sk_buff *skb, const struct net_device *in
 	return EBT_MATCH;
 }
 
-static int ebt_stp_check(const char *tablename, unsigned int hookmask,
+static bool ebt_stp_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	const struct ebt_stp_info *info = data;
@@ -162,13 +162,13 @@ static int ebt_stp_check(const char *tablename, unsigned int hookmask,
 
 	if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
 	    !(info->bitmask & EBT_STP_MASK))
-		return -EINVAL;
+		return false;
 	/* Make sure the match only receives stp frames */
 	if (compare_ether_addr(e->destmac, bridge_ula) ||
 	    compare_ether_addr(e->destmsk, msk) || !(e->bitmask & EBT_DESTMAC))
-		return -EINVAL;
+		return false;
 
-	return 0;
+	return true;
 }
 
 static struct ebt_match filter_stp __read_mostly = {
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index bdd8a27bba9..e13a005f58a 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -255,14 +255,13 @@ static void ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
 	ebt_ulog_packet(hooknr, skb, in, out, uloginfo, NULL);
 }
 
-
-static int ebt_ulog_check(const char *tablename, unsigned int hookmask,
+static bool ebt_ulog_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	struct ebt_ulog_info *uloginfo = data;
 
 	if (uloginfo->nlgroup > 31)
-		return -EINVAL;
+		return false;
 
 	uloginfo->prefix[EBT_ULOG_PREFIX_LEN - 1] = '\0';
 
@@ -288,12 +287,13 @@ static const struct nf_logger ebt_ulog_logger = {
 
 static int __init ebt_ulog_init(void)
 {
-	int i, ret = 0;
+	bool ret = true;
+	int i;
 
 	if (nlbufsiz >= 128*1024) {
 		printk(KERN_NOTICE "ebt_ulog: Netlink buffer has to be <= 128kB,"
 		       " please try a smaller nlbufsiz parameter.\n");
-		return -EINVAL;
+		return false;
 	}
 
 	/* initialize ulog_buffers */
@@ -305,12 +305,15 @@ static int __init ebt_ulog_init(void)
 	ebtulognl = netlink_kernel_create(&init_net, NETLINK_NFLOG,
 					  EBT_ULOG_MAXNLGROUPS, NULL, NULL,
 					  THIS_MODULE);
-	if (!ebtulognl)
-		ret = -ENOMEM;
-	else if ((ret = ebt_register_watcher(&ulog)))
+	if (!ebtulognl) {
+		printk(KERN_WARNING KBUILD_MODNAME ": out of memory trying to "
+		       "call netlink_kernel_create\n");
+		ret = false;
+	} else if (ebt_register_watcher(&ulog) != 0) {
 		netlink_kernel_release(ebtulognl);
+	}
 
-	if (ret == 0)
+	if (ret)
 		nf_log_register(NFPROTO_BRIDGE, &ebt_ulog_logger);
 
 	return ret;
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index 4dba47aefc8..fc88d5d59e0 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -87,7 +87,7 @@ ebt_filter_vlan(const struct sk_buff *skb,
 	return EBT_MATCH;
 }
 
-static int
+static bool
 ebt_check_vlan(const char *tablename,
 	       unsigned int hooknr,
 	       const struct ebt_entry *e, void *data, unsigned int datalen)
@@ -99,7 +99,7 @@ ebt_check_vlan(const char *tablename,
 		DEBUG_MSG
 		    ("passed entry proto %2.4X is not 802.1Q (8100)\n",
 		     (unsigned short) ntohs(e->ethproto));
-		return -EINVAL;
+		return false;
 	}
 
 	/* Check for bitmask range
@@ -107,14 +107,14 @@ ebt_check_vlan(const char *tablename,
 	if (info->bitmask & ~EBT_VLAN_MASK) {
 		DEBUG_MSG("bitmask %2X is out of mask (%2X)\n",
 			  info->bitmask, EBT_VLAN_MASK);
-		return -EINVAL;
+		return false;
 	}
 
 	/* Check for inversion flags range */
 	if (info->invflags & ~EBT_VLAN_MASK) {
 		DEBUG_MSG("inversion flags %2X is out of mask (%2X)\n",
 			  info->invflags, EBT_VLAN_MASK);
-		return -EINVAL;
+		return false;
 	}
 
 	/* Reserved VLAN ID (VID) values
@@ -129,7 +129,7 @@ ebt_check_vlan(const char *tablename,
 				DEBUG_MSG
 				    ("id %d is out of range (1-4096)\n",
 				     info->id);
-				return -EINVAL;
+				return false;
 			}
 			/* Note: This is valid VLAN-tagged frame point.
 			 * Any value of user_priority are acceptable,
@@ -144,7 +144,7 @@ ebt_check_vlan(const char *tablename,
 		if ((unsigned char) info->prio > 7) {
 			DEBUG_MSG("prio %d is out of range (0-7)\n",
 			     info->prio);
-			return -EINVAL;
+			return false;
 		}
 	}
 	/* Check for encapsulated proto range - it is possible to be
@@ -155,11 +155,11 @@ ebt_check_vlan(const char *tablename,
 			DEBUG_MSG
 			    ("encap frame length %d is less than minimal\n",
 			     ntohs(info->encap));
-			return -EINVAL;
+			return false;
 		}
 	}
 
-	return 0;
+	return true;
 }
 
 static struct ebt_match filter_vlan __read_mostly = {
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index b04e288d20f..fe499527729 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -365,7 +365,7 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		return -EINVAL;
 	}
 	if (match->check &&
-	   match->check(name, hookmask, e, m->data, m->match_size) != 0) {
+	    !match->check(name, hookmask, e, m->data, m->match_size)) {
 		BUGPRINT("match->check failed\n");
 		module_put(match->me);
 		return -EINVAL;
@@ -403,7 +403,7 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 		return -EINVAL;
 	}
 	if (watcher->check &&
-	   watcher->check(name, hookmask, e, w->data, w->watcher_size) != 0) {
+	    !watcher->check(name, hookmask, e, w->data, w->watcher_size)) {
 		BUGPRINT("watcher->check failed\n");
 		module_put(watcher->me);
 		return -EINVAL;
@@ -716,7 +716,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 		ret = -EINVAL;
 		goto cleanup_watchers;
 	} else if (t->u.target->check &&
-	    t->u.target->check(name, hookmask, e, t->data, t->target_size) != 0) {
+	    !t->u.target->check(name, hookmask, e, t->data, t->target_size)) {
 		module_put(t->u.target->me);
 		ret = -EFAULT;
 		goto cleanup_watchers;
-- 
cgit v1.2.3


From 8cc784eec6676b58e7f60419c88179aaa97bf71c Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:13 +0200
Subject: netfilter: change return types of match functions for ebtables
 extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c   | 13 +++++------
 net/bridge/netfilter/ebt_among.c   | 44 +++++++++++++++++---------------------
 net/bridge/netfilter/ebt_arp.c     | 35 +++++++++++++++---------------
 net/bridge/netfilter/ebt_ip.c      | 25 +++++++++++-----------
 net/bridge/netfilter/ebt_ip6.c     | 26 +++++++++++-----------
 net/bridge/netfilter/ebt_limit.c   |  6 +++---
 net/bridge/netfilter/ebt_mark_m.c  |  6 +++---
 net/bridge/netfilter/ebt_pkttype.c |  4 ++--
 net/bridge/netfilter/ebt_stp.c     | 39 +++++++++++++++++----------------
 net/bridge/netfilter/ebt_vlan.c    |  8 +++----
 10 files changed, 103 insertions(+), 103 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 868df9c1e42..8ebe62b9bcc 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -12,7 +12,8 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_802_3.h>
 
-static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *in,
+static bool ebt_filter_802_3(const struct sk_buff *skb,
+   const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
 {
 	const struct ebt_802_3_info *info = data;
@@ -21,19 +22,19 @@ static int ebt_filter_802_3(const struct sk_buff *skb, const struct net_device *
 
 	if (info->bitmask & EBT_802_3_SAP) {
 		if (FWINV(info->sap != hdr->llc.ui.ssap, EBT_802_3_SAP))
-				return EBT_NOMATCH;
+			return false;
 		if (FWINV(info->sap != hdr->llc.ui.dsap, EBT_802_3_SAP))
-				return EBT_NOMATCH;
+			return false;
 	}
 
 	if (info->bitmask & EBT_802_3_TYPE) {
 		if (!(hdr->llc.ui.dsap == CHECK_TYPE && hdr->llc.ui.ssap == CHECK_TYPE))
-			return EBT_NOMATCH;
+			return false;
 		if (FWINV(info->type != type, EBT_802_3_TYPE))
-			return EBT_NOMATCH;
+			return false;
 	}
 
-	return EBT_MATCH;
+	return true;
 }
 
 static struct ebt_match filter_802_3;
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 95e2e70ac90..bfdc67bcbfa 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -14,8 +14,8 @@
 #include <linux/if_arp.h>
 #include <linux/module.h>
 
-static int ebt_mac_wormhash_contains(const struct ebt_mac_wormhash *wh,
-				     const char *mac, __be32 ip)
+static bool ebt_mac_wormhash_contains(const struct ebt_mac_wormhash *wh,
+				      const char *mac, __be32 ip)
 {
 	/* You may be puzzled as to how this code works.
 	 * Some tricks were used, refer to
@@ -33,23 +33,19 @@ static int ebt_mac_wormhash_contains(const struct ebt_mac_wormhash *wh,
 	if (ip) {
 		for (i = start; i < limit; i++) {
 			p = &wh->pool[i];
-			if (cmp[1] == p->cmp[1] && cmp[0] == p->cmp[0]) {
-				if (p->ip == 0 || p->ip == ip) {
-					return 1;
-				}
-			}
+			if (cmp[1] == p->cmp[1] && cmp[0] == p->cmp[0])
+				if (p->ip == 0 || p->ip == ip)
+					return true;
 		}
 	} else {
 		for (i = start; i < limit; i++) {
 			p = &wh->pool[i];
-			if (cmp[1] == p->cmp[1] && cmp[0] == p->cmp[0]) {
-				if (p->ip == 0) {
-					return 1;
-				}
-			}
+			if (cmp[1] == p->cmp[1] && cmp[0] == p->cmp[0])
+				if (p->ip == 0)
+					return true;
 		}
 	}
-	return 0;
+	return false;
 }
 
 static int ebt_mac_wormhash_check_integrity(const struct ebt_mac_wormhash
@@ -131,10 +127,10 @@ static int get_ip_src(const struct sk_buff *skb, __be32 *addr)
 	return 0;
 }
 
-static int ebt_filter_among(const struct sk_buff *skb,
-			    const struct net_device *in,
-			    const struct net_device *out, const void *data,
-			    unsigned int datalen)
+static bool ebt_filter_among(const struct sk_buff *skb,
+			     const struct net_device *in,
+			     const struct net_device *out, const void *data,
+			     unsigned int datalen)
 {
 	const struct ebt_among_info *info = data;
 	const char *dmac, *smac;
@@ -147,34 +143,34 @@ static int ebt_filter_among(const struct sk_buff *skb,
 	if (wh_src) {
 		smac = eth_hdr(skb)->h_source;
 		if (get_ip_src(skb, &sip))
-			return EBT_NOMATCH;
+			return false;
 		if (!(info->bitmask & EBT_AMONG_SRC_NEG)) {
 			/* we match only if it contains */
 			if (!ebt_mac_wormhash_contains(wh_src, smac, sip))
-				return EBT_NOMATCH;
+				return false;
 		} else {
 			/* we match only if it DOES NOT contain */
 			if (ebt_mac_wormhash_contains(wh_src, smac, sip))
-				return EBT_NOMATCH;
+				return false;
 		}
 	}
 
 	if (wh_dst) {
 		dmac = eth_hdr(skb)->h_dest;
 		if (get_ip_dst(skb, &dip))
-			return EBT_NOMATCH;
+			return false;
 		if (!(info->bitmask & EBT_AMONG_DST_NEG)) {
 			/* we match only if it contains */
 			if (!ebt_mac_wormhash_contains(wh_dst, dmac, dip))
-				return EBT_NOMATCH;
+				return false;
 		} else {
 			/* we match only if it DOES NOT contain */
 			if (ebt_mac_wormhash_contains(wh_dst, dmac, dip))
-				return EBT_NOMATCH;
+				return false;
 		}
 	}
 
-	return EBT_MATCH;
+	return true;
 }
 
 static bool
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index cb33672380d..f1f0bcf5524 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -15,7 +15,8 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_arp.h>
 
-static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in,
+static bool ebt_filter_arp(const struct sk_buff *skb,
+   const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
 {
 	const struct ebt_arp_info *info = data;
@@ -24,42 +25,42 @@ static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in
 
 	ah = skb_header_pointer(skb, 0, sizeof(_arph), &_arph);
 	if (ah == NULL)
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_ARP_OPCODE && FWINV(info->opcode !=
 	   ah->ar_op, EBT_ARP_OPCODE))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_ARP_HTYPE && FWINV(info->htype !=
 	   ah->ar_hrd, EBT_ARP_HTYPE))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_ARP_PTYPE && FWINV(info->ptype !=
 	   ah->ar_pro, EBT_ARP_PTYPE))
-		return EBT_NOMATCH;
+		return false;
 
 	if (info->bitmask & (EBT_ARP_SRC_IP | EBT_ARP_DST_IP | EBT_ARP_GRAT)) {
 		const __be32 *sap, *dap;
 		__be32 saddr, daddr;
 
 		if (ah->ar_pln != sizeof(__be32) || ah->ar_pro != htons(ETH_P_IP))
-			return EBT_NOMATCH;
+			return false;
 		sap = skb_header_pointer(skb, sizeof(struct arphdr) +
 					ah->ar_hln, sizeof(saddr),
 					&saddr);
 		if (sap == NULL)
-			return EBT_NOMATCH;
+			return false;
 		dap = skb_header_pointer(skb, sizeof(struct arphdr) +
 					2*ah->ar_hln+sizeof(saddr),
 					sizeof(daddr), &daddr);
 		if (dap == NULL)
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_ARP_SRC_IP &&
 		    FWINV(info->saddr != (*sap & info->smsk), EBT_ARP_SRC_IP))
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_ARP_DST_IP &&
 		    FWINV(info->daddr != (*dap & info->dmsk), EBT_ARP_DST_IP))
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_ARP_GRAT &&
 		    FWINV(*dap != *sap, EBT_ARP_GRAT))
-			return EBT_NOMATCH;
+			return false;
 	}
 
 	if (info->bitmask & (EBT_ARP_SRC_MAC | EBT_ARP_DST_MAC)) {
@@ -68,18 +69,18 @@ static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in
 		uint8_t verdict, i;
 
 		if (ah->ar_hln != ETH_ALEN || ah->ar_hrd != htons(ARPHRD_ETHER))
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_ARP_SRC_MAC) {
 			mp = skb_header_pointer(skb, sizeof(struct arphdr),
 						sizeof(_mac), &_mac);
 			if (mp == NULL)
-				return EBT_NOMATCH;
+				return false;
 			verdict = 0;
 			for (i = 0; i < 6; i++)
 				verdict |= (mp[i] ^ info->smaddr[i]) &
 				       info->smmsk[i];
 			if (FWINV(verdict != 0, EBT_ARP_SRC_MAC))
-				return EBT_NOMATCH;
+				return false;
 		}
 
 		if (info->bitmask & EBT_ARP_DST_MAC) {
@@ -87,17 +88,17 @@ static int ebt_filter_arp(const struct sk_buff *skb, const struct net_device *in
 						ah->ar_hln + ah->ar_pln,
 						sizeof(_mac), &_mac);
 			if (mp == NULL)
-				return EBT_NOMATCH;
+				return false;
 			verdict = 0;
 			for (i = 0; i < 6; i++)
 				verdict |= (mp[i] ^ info->dmaddr[i]) &
 					info->dmmsk[i];
 			if (FWINV(verdict != 0, EBT_ARP_DST_MAC))
-				return EBT_NOMATCH;
+				return false;
 		}
 	}
 
-	return EBT_MATCH;
+	return true;
 }
 
 static bool ebt_arp_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index cbf0918ec16..018782f044c 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -24,7 +24,8 @@ struct tcpudphdr {
 	__be16 dst;
 };
 
-static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in,
+static bool ebt_filter_ip(const struct sk_buff *skb,
+   const struct net_device *in,
    const struct net_device *out, const void *data,
    unsigned int datalen)
 {
@@ -36,46 +37,46 @@ static int ebt_filter_ip(const struct sk_buff *skb, const struct net_device *in,
 
 	ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
 	if (ih == NULL)
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_IP_TOS &&
 	   FWINV(info->tos != ih->tos, EBT_IP_TOS))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_IP_SOURCE &&
 	   FWINV((ih->saddr & info->smsk) !=
 	   info->saddr, EBT_IP_SOURCE))
-		return EBT_NOMATCH;
+		return false;
 	if ((info->bitmask & EBT_IP_DEST) &&
 	   FWINV((ih->daddr & info->dmsk) !=
 	   info->daddr, EBT_IP_DEST))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_IP_PROTO) {
 		if (FWINV(info->protocol != ih->protocol, EBT_IP_PROTO))
-			return EBT_NOMATCH;
+			return false;
 		if (!(info->bitmask & EBT_IP_DPORT) &&
 		    !(info->bitmask & EBT_IP_SPORT))
-			return EBT_MATCH;
+			return true;
 		if (ntohs(ih->frag_off) & IP_OFFSET)
-			return EBT_NOMATCH;
+			return false;
 		pptr = skb_header_pointer(skb, ih->ihl*4,
 					  sizeof(_ports), &_ports);
 		if (pptr == NULL)
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_IP_DPORT) {
 			u32 dst = ntohs(pptr->dst);
 			if (FWINV(dst < info->dport[0] ||
 				  dst > info->dport[1],
 				  EBT_IP_DPORT))
-			return EBT_NOMATCH;
+			return false;
 		}
 		if (info->bitmask & EBT_IP_SPORT) {
 			u32 src = ntohs(pptr->src);
 			if (FWINV(src < info->sport[0] ||
 				  src > info->sport[1],
 				  EBT_IP_SPORT))
-			return EBT_NOMATCH;
+			return false;
 		}
 	}
-	return EBT_MATCH;
+	return true;
 }
 
 static bool ebt_ip_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 1230c9ee394..7fc3928e3fb 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -27,7 +27,7 @@ struct tcpudphdr {
 	__be16 dst;
 };
 
-static int ebt_filter_ip6(const struct sk_buff *skb,
+static bool ebt_filter_ip6(const struct sk_buff *skb,
    const struct net_device *in,
    const struct net_device *out, const void *data,
    unsigned int datalen)
@@ -42,54 +42,54 @@ static int ebt_filter_ip6(const struct sk_buff *skb,
 
 	ih6 = skb_header_pointer(skb, 0, sizeof(_ip6h), &_ip6h);
 	if (ih6 == NULL)
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_IP6_TCLASS &&
 	   FWINV(info->tclass != ipv6_get_dsfield(ih6), EBT_IP6_TCLASS))
-		return EBT_NOMATCH;
+		return false;
 	for (i = 0; i < 4; i++)
 		tmp_addr.in6_u.u6_addr32[i] = ih6->saddr.in6_u.u6_addr32[i] &
 			info->smsk.in6_u.u6_addr32[i];
 	if (info->bitmask & EBT_IP6_SOURCE &&
 		FWINV((ipv6_addr_cmp(&tmp_addr, &info->saddr) != 0),
 			EBT_IP6_SOURCE))
-		return EBT_NOMATCH;
+		return false;
 	for (i = 0; i < 4; i++)
 		tmp_addr.in6_u.u6_addr32[i] = ih6->daddr.in6_u.u6_addr32[i] &
 			info->dmsk.in6_u.u6_addr32[i];
 	if (info->bitmask & EBT_IP6_DEST &&
 	   FWINV((ipv6_addr_cmp(&tmp_addr, &info->daddr) != 0), EBT_IP6_DEST))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_IP6_PROTO) {
 		uint8_t nexthdr = ih6->nexthdr;
 		int offset_ph;
 
 		offset_ph = ipv6_skip_exthdr(skb, sizeof(_ip6h), &nexthdr);
 		if (offset_ph == -1)
-			return EBT_NOMATCH;
+			return false;
 		if (FWINV(info->protocol != nexthdr, EBT_IP6_PROTO))
-			return EBT_NOMATCH;
+			return false;
 		if (!(info->bitmask & EBT_IP6_DPORT) &&
 		    !(info->bitmask & EBT_IP6_SPORT))
-			return EBT_MATCH;
+			return true;
 		pptr = skb_header_pointer(skb, offset_ph, sizeof(_ports),
 					  &_ports);
 		if (pptr == NULL)
-			return EBT_NOMATCH;
+			return false;
 		if (info->bitmask & EBT_IP6_DPORT) {
 			u32 dst = ntohs(pptr->dst);
 			if (FWINV(dst < info->dport[0] ||
 				  dst > info->dport[1], EBT_IP6_DPORT))
-				return EBT_NOMATCH;
+				return false;
 		}
 		if (info->bitmask & EBT_IP6_SPORT) {
 			u32 src = ntohs(pptr->src);
 			if (FWINV(src < info->sport[0] ||
 				  src > info->sport[1], EBT_IP6_SPORT))
-			return EBT_NOMATCH;
+			return false;
 		}
-		return EBT_MATCH;
+		return true;
 	}
-	return EBT_MATCH;
+	return true;
 }
 
 static bool ebt_ip6_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 9b04f2be94e..925065a22a6 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -30,7 +30,7 @@ static DEFINE_SPINLOCK(limit_lock);
 
 #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ)
 
-static int ebt_limit_match(const struct sk_buff *skb,
+static bool ebt_limit_match(const struct sk_buff *skb,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
@@ -46,11 +46,11 @@ static int ebt_limit_match(const struct sk_buff *skb,
 		/* We're not limited. */
 		info->credit -= info->cost;
 		spin_unlock_bh(&limit_lock);
-		return EBT_MATCH;
+		return true;
 	}
 
 	spin_unlock_bh(&limit_lock);
-	return EBT_NOMATCH;
+	return false;
 }
 
 /* Precision saver. */
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index b2707d772c9..ec16c0e2868 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -12,15 +12,15 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_m.h>
 
-static int ebt_filter_mark(const struct sk_buff *skb,
+static bool ebt_filter_mark(const struct sk_buff *skb,
    const struct net_device *in, const struct net_device *out, const void *data,
    unsigned int datalen)
 {
 	const struct ebt_mark_m_info *info = data;
 
 	if (info->bitmask & EBT_MARK_OR)
-		return !(!!(skb->mark & info->mask) ^ info->invert);
-	return !(((skb->mark & info->mask) == info->mark) ^ info->invert);
+		return !!(skb->mark & info->mask) ^ info->invert;
+	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
 }
 
 static bool ebt_mark_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 4dcd3b86cff..74b44328436 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -12,7 +12,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_pkttype.h>
 
-static int ebt_filter_pkttype(const struct sk_buff *skb,
+static bool ebt_filter_pkttype(const struct sk_buff *skb,
    const struct net_device *in,
    const struct net_device *out,
    const void *data,
@@ -20,7 +20,7 @@ static int ebt_filter_pkttype(const struct sk_buff *skb,
 {
 	const struct ebt_pkttype_info *info = data;
 
-	return (skb->pkt_type != info->pkt_type) ^ info->invert;
+	return (skb->pkt_type == info->pkt_type) ^ info->invert;
 }
 
 static bool ebt_pkttype_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 37d9480a00c..7618206639e 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -40,7 +40,7 @@ struct stp_config_pdu {
 #define NR16(p) (p[0] << 8 | p[1])
 #define NR32(p) ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])
 
-static int ebt_filter_config(const struct ebt_stp_info *info,
+static bool ebt_filter_config(const struct ebt_stp_info *info,
    const struct stp_config_pdu *stpc)
 {
 	const struct ebt_stp_config_info *c;
@@ -51,12 +51,12 @@ static int ebt_filter_config(const struct ebt_stp_info *info,
 	c = &info->config;
 	if ((info->bitmask & EBT_STP_FLAGS) &&
 	    FWINV(c->flags != stpc->flags, EBT_STP_FLAGS))
-		return EBT_NOMATCH;
+		return false;
 	if (info->bitmask & EBT_STP_ROOTPRIO) {
 		v16 = NR16(stpc->root);
 		if (FWINV(v16 < c->root_priol ||
 		    v16 > c->root_priou, EBT_STP_ROOTPRIO))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_ROOTADDR) {
 		verdict = 0;
@@ -64,19 +64,19 @@ static int ebt_filter_config(const struct ebt_stp_info *info,
 			verdict |= (stpc->root[2+i] ^ c->root_addr[i]) &
 				   c->root_addrmsk[i];
 		if (FWINV(verdict != 0, EBT_STP_ROOTADDR))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_ROOTCOST) {
 		v32 = NR32(stpc->root_cost);
 		if (FWINV(v32 < c->root_costl ||
 		    v32 > c->root_costu, EBT_STP_ROOTCOST))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_SENDERPRIO) {
 		v16 = NR16(stpc->sender);
 		if (FWINV(v16 < c->sender_priol ||
 		    v16 > c->sender_priou, EBT_STP_SENDERPRIO))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_SENDERADDR) {
 		verdict = 0;
@@ -84,42 +84,43 @@ static int ebt_filter_config(const struct ebt_stp_info *info,
 			verdict |= (stpc->sender[2+i] ^ c->sender_addr[i]) &
 				   c->sender_addrmsk[i];
 		if (FWINV(verdict != 0, EBT_STP_SENDERADDR))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_PORT) {
 		v16 = NR16(stpc->port);
 		if (FWINV(v16 < c->portl ||
 		    v16 > c->portu, EBT_STP_PORT))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_MSGAGE) {
 		v16 = NR16(stpc->msg_age);
 		if (FWINV(v16 < c->msg_agel ||
 		    v16 > c->msg_ageu, EBT_STP_MSGAGE))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_MAXAGE) {
 		v16 = NR16(stpc->max_age);
 		if (FWINV(v16 < c->max_agel ||
 		    v16 > c->max_ageu, EBT_STP_MAXAGE))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_HELLOTIME) {
 		v16 = NR16(stpc->hello_time);
 		if (FWINV(v16 < c->hello_timel ||
 		    v16 > c->hello_timeu, EBT_STP_HELLOTIME))
-			return EBT_NOMATCH;
+			return false;
 	}
 	if (info->bitmask & EBT_STP_FWDD) {
 		v16 = NR16(stpc->forward_delay);
 		if (FWINV(v16 < c->forward_delayl ||
 		    v16 > c->forward_delayu, EBT_STP_FWDD))
-			return EBT_NOMATCH;
+			return false;
 	}
-	return EBT_MATCH;
+	return true;
 }
 
-static int ebt_filter_stp(const struct sk_buff *skb, const struct net_device *in,
+static bool ebt_filter_stp(const struct sk_buff *skb,
+   const struct net_device *in,
    const struct net_device *out, const void *data, unsigned int datalen)
 {
 	const struct ebt_stp_info *info = data;
@@ -129,15 +130,15 @@ static int ebt_filter_stp(const struct sk_buff *skb, const struct net_device *in
 
 	sp = skb_header_pointer(skb, 0, sizeof(_stph), &_stph);
 	if (sp == NULL)
-		return EBT_NOMATCH;
+		return false;
 
 	/* The stp code only considers these */
 	if (memcmp(sp, header, sizeof(header)))
-		return EBT_NOMATCH;
+		return false;
 
 	if (info->bitmask & EBT_STP_TYPE
 	    && FWINV(info->type != sp->type, EBT_STP_TYPE))
-		return EBT_NOMATCH;
+		return false;
 
 	if (sp->type == BPDU_TYPE_CONFIG &&
 	    info->bitmask & EBT_STP_CONFIG_MASK) {
@@ -147,10 +148,10 @@ static int ebt_filter_stp(const struct sk_buff *skb, const struct net_device *in
 		st = skb_header_pointer(skb, sizeof(_stph),
 					sizeof(_stpc), &_stpc);
 		if (st == NULL)
-			return EBT_NOMATCH;
+			return false;
 		return ebt_filter_config(info, st);
 	}
-	return EBT_MATCH;
+	return true;
 }
 
 static bool ebt_stp_check(const char *tablename, unsigned int hookmask,
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index fc88d5d59e0..8cc4257a1ad 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -38,9 +38,9 @@ MODULE_LICENSE("GPL");
 
 #define DEBUG_MSG(args...) if (debug) printk (KERN_DEBUG "ebt_vlan: " args)
 #define GET_BITMASK(_BIT_MASK_) info->bitmask & _BIT_MASK_
-#define EXIT_ON_MISMATCH(_MATCH_,_MASK_) {if (!((info->_MATCH_ == _MATCH_)^!!(info->invflags & _MASK_))) return EBT_NOMATCH;}
+#define EXIT_ON_MISMATCH(_MATCH_,_MASK_) {if (!((info->_MATCH_ == _MATCH_)^!!(info->invflags & _MASK_))) return false; }
 
-static int
+static bool
 ebt_filter_vlan(const struct sk_buff *skb,
 		const struct net_device *in,
 		const struct net_device *out,
@@ -58,7 +58,7 @@ ebt_filter_vlan(const struct sk_buff *skb,
 
 	fp = skb_header_pointer(skb, 0, sizeof(_frame), &_frame);
 	if (fp == NULL)
-		return EBT_NOMATCH;
+		return false;
 
 	/* Tag Control Information (TCI) consists of the following elements:
 	 * - User_priority. The user_priority field is three bits in length,
@@ -84,7 +84,7 @@ ebt_filter_vlan(const struct sk_buff *skb,
 	if (GET_BITMASK(EBT_VLAN_ENCAP))
 		EXIT_ON_MISMATCH(encap, EBT_VLAN_ENCAP);
 
-	return EBT_MATCH;
+	return true;
 }
 
 static bool
-- 
cgit v1.2.3


From 0ac6ab1f7915fc820ca0cf8f597290dbb249edcc Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:13 +0200
Subject: netfilter: Change return types of targets/watchers for Ebtables
 extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_arpreply.c |  2 +-
 net/bridge/netfilter/ebt_dnat.c     |  2 +-
 net/bridge/netfilter/ebt_log.c      |  3 ++-
 net/bridge/netfilter/ebt_mark.c     |  2 +-
 net/bridge/netfilter/ebt_nflog.c    | 11 ++++++-----
 net/bridge/netfilter/ebt_redirect.c |  3 ++-
 net/bridge/netfilter/ebt_snat.c     |  2 +-
 net/bridge/netfilter/ebt_ulog.c     |  3 ++-
 8 files changed, 16 insertions(+), 12 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index c298d3deffa..b444cf835f1 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -15,7 +15,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_arpreply.h>
 
-static int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index 6ddea2184e9..d58b9e32338 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -14,7 +14,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index f3d6d5ec2dc..2705d7a2a9b 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -192,7 +192,7 @@ out:
 
 }
 
-static void ebt_log(const struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_log(const struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
@@ -209,6 +209,7 @@ static void ebt_log(const struct sk_buff *skb, unsigned int hooknr,
 	else
 		ebt_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
 			       info->prefix);
+	return EBT_CONTINUE;
 }
 
 static struct ebt_watcher log =
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index b85c73895ae..e4b91d8e2c6 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -18,7 +18,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_t.h>
 
-static int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index a6954eb3f58..2c75023b326 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -19,11 +19,11 @@
 #include <linux/netfilter_bridge/ebt_nflog.h>
 #include <net/netfilter/nf_log.h>
 
-static void ebt_nflog(const struct sk_buff *skb,
-		      unsigned int hooknr,
-		      const struct net_device *in,
-		      const struct net_device *out,
-		      const void *data, unsigned int datalen)
+static unsigned int ebt_nflog(const struct sk_buff *skb,
+			      unsigned int hooknr,
+			      const struct net_device *in,
+			      const struct net_device *out,
+			      const void *data, unsigned int datalen)
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 	struct nf_loginfo li;
@@ -34,6 +34,7 @@ static void ebt_nflog(const struct sk_buff *skb,
 	li.u.ulog.qthreshold = info->threshold;
 
 	nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li, "%s", info->prefix);
+	return EBT_CONTINUE;
 }
 
 static bool ebt_nflog_check(const char *tablename,
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index d2076f4227c..7bf1390ad97 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -15,7 +15,8 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_redirect.h>
 
-static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_redirect(struct sk_buff *skb,
+   unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index 5a5a16acca0..d13f05d2620 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -16,7 +16,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index e13a005f58a..5f86f555f6d 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -246,13 +246,14 @@ static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
 	ebt_ulog_packet(hooknum, skb, in, out, &loginfo, prefix);
 }
 
-static void ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
 	const struct ebt_ulog_info *uloginfo = data;
 
 	ebt_ulog_packet(hooknr, skb, in, out, uloginfo, NULL);
+	return EBT_CONTINUE;
 }
 
 static bool ebt_ulog_check(const char *tablename, unsigned int hookmask,
-- 
cgit v1.2.3


From 001a18d369f4813ed792629ff4a9a6ade2a4a031 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:14 +0200
Subject: netfilter: add dummy members to Ebtables code to ease transition to
 Xtables

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c    |  2 ++
 net/bridge/netfilter/ebt_among.c    |  2 ++
 net/bridge/netfilter/ebt_arp.c      |  2 ++
 net/bridge/netfilter/ebt_arpreply.c |  2 ++
 net/bridge/netfilter/ebt_dnat.c     |  2 ++
 net/bridge/netfilter/ebt_ip.c       |  2 ++
 net/bridge/netfilter/ebt_ip6.c      |  2 ++
 net/bridge/netfilter/ebt_limit.c    |  2 ++
 net/bridge/netfilter/ebt_log.c      |  2 ++
 net/bridge/netfilter/ebt_mark.c     |  2 ++
 net/bridge/netfilter/ebt_mark_m.c   |  2 ++
 net/bridge/netfilter/ebt_nflog.c    |  2 ++
 net/bridge/netfilter/ebt_pkttype.c  |  2 ++
 net/bridge/netfilter/ebt_redirect.c |  2 ++
 net/bridge/netfilter/ebt_snat.c     |  2 ++
 net/bridge/netfilter/ebt_stp.c      |  2 ++
 net/bridge/netfilter/ebt_ulog.c     |  2 ++
 net/bridge/netfilter/ebt_vlan.c     |  2 ++
 net/bridge/netfilter/ebtables.c     | 58 +++++++++++++++++++++++++++++++------
 19 files changed, 85 insertions(+), 9 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 8ebe62b9bcc..f9876f22757 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -51,6 +51,8 @@ static bool ebt_802_3_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_802_3 __read_mostly = {
 	.name		= EBT_802_3_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_802_3,
 	.check		= ebt_802_3_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_802_3_info)),
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index bfdc67bcbfa..568c890887b 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -211,6 +211,8 @@ ebt_among_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_among __read_mostly = {
 	.name		= EBT_AMONG_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_among,
 	.check		= ebt_among_check,
 	.matchsize	= -1, /* special case */
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index f1f0bcf5524..4a5226cbab8 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -117,6 +117,8 @@ static bool ebt_arp_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_arp __read_mostly = {
 	.name		= EBT_ARP_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_arp,
 	.check		= ebt_arp_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_arp_info)),
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index b444cf835f1..7ab16556800 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -76,6 +76,8 @@ static bool ebt_target_reply_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_target reply_target __read_mostly = {
 	.name		= EBT_ARPREPLY_TARGET,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_target_reply,
 	.check		= ebt_target_reply_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_arpreply_info)),
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index d58b9e32338..64838e2835a 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -46,6 +46,8 @@ static bool ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_target dnat __read_mostly = {
 	.name		= EBT_DNAT_TARGET,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_target_dnat,
 	.check		= ebt_target_dnat_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index 018782f044c..0bef6f7bc83 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -108,6 +108,8 @@ static bool ebt_ip_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_ip __read_mostly = {
 	.name		= EBT_IP_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_ip,
 	.check		= ebt_ip_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip_info)),
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 7fc3928e3fb..afcabe205b8 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -121,6 +121,8 @@ static bool ebt_ip6_check(const char *tablename, unsigned int hookmask,
 static struct ebt_match filter_ip6 =
 {
 	.name		= EBT_IP6_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_ip6,
 	.check		= ebt_ip6_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip6_info)),
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 925065a22a6..9ca0a2564c8 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -88,6 +88,8 @@ static bool ebt_limit_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match ebt_limit_reg __read_mostly = {
 	.name		= EBT_LIMIT_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_limit_match,
 	.check		= ebt_limit_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_limit_info)),
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 2705d7a2a9b..c2e1c357025 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -215,6 +215,8 @@ static unsigned int ebt_log(const struct sk_buff *skb, unsigned int hooknr,
 static struct ebt_watcher log =
 {
 	.name		= EBT_LOG_WATCHER,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.watcher	= ebt_log,
 	.check		= ebt_log_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_log_info)),
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index e4b91d8e2c6..910721a1267 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -58,6 +58,8 @@ static bool ebt_target_mark_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_target mark_target __read_mostly = {
 	.name		= EBT_MARK_TARGET,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_target_mark,
 	.check		= ebt_target_mark_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_mark_t_info)),
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index ec16c0e2868..6512ad9b409 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -39,6 +39,8 @@ static bool ebt_mark_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_mark __read_mostly = {
 	.name		= EBT_MARK_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_mark,
 	.check		= ebt_mark_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_mark_m_info)),
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 2c75023b326..aa0410c69a6 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -52,6 +52,8 @@ static bool ebt_nflog_check(const char *tablename,
 
 static struct ebt_watcher nflog __read_mostly = {
 	.name = EBT_NFLOG_WATCHER,
+	.revision = 0,
+	.family = NFPROTO_BRIDGE,
 	.watcher = ebt_nflog,
 	.check = ebt_nflog_check,
 	.targetsize = XT_ALIGN(sizeof(struct ebt_nflog_info)),
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 74b44328436..a9acecc88e9 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -36,6 +36,8 @@ static bool ebt_pkttype_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_pkttype __read_mostly = {
 	.name		= EBT_PKTTYPE_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_pkttype,
 	.check		= ebt_pkttype_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_pkttype_info)),
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 7bf1390ad97..4c628108bcd 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -52,6 +52,8 @@ static bool ebt_target_redirect_check(const char *tablename, unsigned int hookma
 
 static struct ebt_target redirect_target __read_mostly = {
 	.name		= EBT_REDIRECT_TARGET,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_target_redirect,
 	.check		= ebt_target_redirect_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_redirect_info)),
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index d13f05d2620..0e83de781c0 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -68,6 +68,8 @@ static bool ebt_target_snat_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_target snat __read_mostly = {
 	.name		= EBT_SNAT_TARGET,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_target_snat,
 	.check		= ebt_target_snat_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 7618206639e..e6d8f0c140a 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -174,6 +174,8 @@ static bool ebt_stp_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_match filter_stp __read_mostly = {
 	.name		= EBT_STP_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_stp,
 	.check		= ebt_stp_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_stp_info)),
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 5f86f555f6d..076b44590f1 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -274,6 +274,8 @@ static bool ebt_ulog_check(const char *tablename, unsigned int hookmask,
 
 static struct ebt_watcher ulog __read_mostly = {
 	.name		= EBT_ULOG_WATCHER,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.watcher	= ebt_ulog,
 	.check		= ebt_ulog_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_ulog_info)),
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index 8cc4257a1ad..9e3a39ae466 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -164,6 +164,8 @@ ebt_check_vlan(const char *tablename,
 
 static struct ebt_match filter_vlan __read_mostly = {
 	.name		= EBT_VLAN_MATCH,
+	.revision	= 0,
+	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_filter_vlan,
 	.check		= ebt_check_vlan,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_vlan_info)),
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index fe499527729..bc4b3f4f37c 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -61,7 +61,9 @@ static LIST_HEAD(ebt_matches);
 static LIST_HEAD(ebt_watchers);
 
 static struct ebt_target ebt_standard_target = {
-	.name = "standard",
+	.name       = "standard",
+	.revision   = 0,
+	.family     = NFPROTO_BRIDGE,
 };
 
 static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
@@ -352,6 +354,17 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		return -ENOENT;
 	}
 	mutex_unlock(&ebt_mutex);
+	if (match->family != NFPROTO_BRIDGE) {
+		printk(KERN_WARNING "ebtables: %s match: not for ebtables?\n",
+		       match->name);
+		goto out;
+	}
+	if (match->revision != 0) {
+		printk(KERN_WARNING "ebtables: %s match: ebtables is not "
+		       "supporting revisions at this time\n",
+		       match->name);
+		goto out;
+	}
 	if (XT_ALIGN(match->matchsize) != m->match_size &&
 	    match->matchsize != -1) {
 		/*
@@ -361,17 +374,18 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		printk(KERN_WARNING "ebtables: %s match: "
 		       "invalid size %Zu != %u\n",
 		       match->name, XT_ALIGN(match->matchsize), m->match_size);
-		module_put(match->me);
-		return -EINVAL;
+		goto out;
 	}
 	if (match->check &&
 	    !match->check(name, hookmask, e, m->data, m->match_size)) {
 		BUGPRINT("match->check failed\n");
-		module_put(match->me);
-		return -EINVAL;
+		goto out;
 	}
 	(*cnt)++;
 	return 0;
+ out:
+	module_put(match->me);
+	return -EINVAL;
 }
 
 static inline int
@@ -394,22 +408,34 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 		return -ENOENT;
 	}
 	mutex_unlock(&ebt_mutex);
+	if (watcher->family != NFPROTO_BRIDGE) {
+		printk(KERN_WARNING "ebtables: %s watcher: not for ebtables?\n",
+		       watcher->name);
+		goto out;
+	}
+	if (watcher->revision != 0) {
+		printk(KERN_WARNING "ebtables: %s watcher: ebtables is not "
+		       "supporting revisions at this time\n",
+		       watcher->name);
+		goto out;
+	}
 	if (XT_ALIGN(watcher->targetsize) != w->watcher_size) {
 		printk(KERN_WARNING "ebtables: %s watcher: "
 		       "invalid size %Zu != %u\n",
 		       watcher->name, XT_ALIGN(watcher->targetsize),
 		       w->watcher_size);
-		module_put(watcher->me);
-		return -EINVAL;
+		goto out;
 	}
 	if (watcher->check &&
 	    !watcher->check(name, hookmask, e, w->data, w->watcher_size)) {
 		BUGPRINT("watcher->check failed\n");
-		module_put(watcher->me);
-		return -EINVAL;
+		goto out;
 	}
 	(*cnt)++;
 	return 0;
+ out:
+	module_put(watcher->me);
+	return -EINVAL;
 }
 
 static int ebt_verify_pointers(struct ebt_replace *repl,
@@ -690,6 +716,20 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	}
 	mutex_unlock(&ebt_mutex);
 
+	if (target->family != NFPROTO_BRIDGE) {
+		printk(KERN_WARNING "ebtables: %s target: not for ebtables?\n",
+		       target->name);
+		ret = -EINVAL;
+		goto cleanup_watchers;
+	}
+	if (target->revision != 0) {
+		printk(KERN_WARNING "ebtables: %s target: ebtables is not "
+		       "supporting revisions at this time\n",
+		       target->name);
+		ret = -EINVAL;
+		goto cleanup_watchers;
+	}
+
 	t->u.target = target;
 	if (t->u.target == &ebt_standard_target) {
 		if (gap < sizeof(struct ebt_standard_target)) {
-- 
cgit v1.2.3


From 815377fe344c799228ca6278613ca3100b069ad5 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:14 +0200
Subject: netfilter: ebt_among: obtain match size through different means

The function signatures will be changed to match those of Xtables, and
the datalen argument will be gone. ebt_among unfortunately relies on
it, so we need to obtain it somehow.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_among.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 568c890887b..88b5c9118a7 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -178,6 +178,8 @@ ebt_among_check(const char *tablename, unsigned int hookmask,
 		const struct ebt_entry *e, void *data,
 		unsigned int datalen)
 {
+	const struct ebt_entry_match *em =
+		container_of(data, const struct ebt_entry_match, data);
 	const struct ebt_among_info *info = data;
 	int expected_length = sizeof(struct ebt_among_info);
 	const struct ebt_mac_wormhash *wh_dst, *wh_src;
@@ -188,11 +190,11 @@ ebt_among_check(const char *tablename, unsigned int hookmask,
 	expected_length += ebt_mac_wormhash_size(wh_dst);
 	expected_length += ebt_mac_wormhash_size(wh_src);
 
-	if (datalen != EBT_ALIGN(expected_length)) {
+	if (em->match_size != EBT_ALIGN(expected_length)) {
 		printk(KERN_WARNING
 		       "ebtables: among: wrong size: %d "
 		       "against expected %d, rounded to %Zd\n",
-		       datalen, expected_length,
+		       em->match_size, expected_length,
 		       EBT_ALIGN(expected_length));
 		return false;
 	}
-- 
cgit v1.2.3


From 2d06d4a5cc107046508d860a0b47dbc43b829b79 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:15 +0200
Subject: netfilter: change Ebtables function signatures to match Xtables's

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c    | 18 ++++++++++--------
 net/bridge/netfilter/ebt_among.c    | 18 +++++++++---------
 net/bridge/netfilter/ebt_arp.c      | 18 +++++++++++-------
 net/bridge/netfilter/ebt_arpreply.c | 18 +++++++++++-------
 net/bridge/netfilter/ebt_dnat.c     | 17 ++++++++++-------
 net/bridge/netfilter/ebt_ip.c       | 19 +++++++++++--------
 net/bridge/netfilter/ebt_ip6.c      | 19 +++++++++++--------
 net/bridge/netfilter/ebt_limit.c    | 17 ++++++++++-------
 net/bridge/netfilter/ebt_log.c      | 17 ++++++++++-------
 net/bridge/netfilter/ebt_mark.c     | 17 ++++++++++-------
 net/bridge/netfilter/ebt_mark_m.c   | 17 ++++++++++-------
 net/bridge/netfilter/ebt_nflog.c    | 21 ++++++++++-----------
 net/bridge/netfilter/ebt_pkttype.c  | 20 +++++++++++---------
 net/bridge/netfilter/ebt_redirect.c | 18 ++++++++++--------
 net/bridge/netfilter/ebt_snat.c     | 17 ++++++++++-------
 net/bridge/netfilter/ebt_stp.c      | 18 +++++++++++-------
 net/bridge/netfilter/ebt_ulog.c     | 17 ++++++++++-------
 net/bridge/netfilter/ebt_vlan.c     | 18 +++++++++---------
 net/bridge/netfilter/ebtables.c     | 30 ++++++++++++++----------------
 19 files changed, 198 insertions(+), 156 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index f9876f22757..6f1a69c28ed 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -12,9 +12,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_802_3.h>
 
-static bool ebt_filter_802_3(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out, const void *data, unsigned int datalen)
+static bool
+ebt_802_3_mt(const struct sk_buff *skb, const struct net_device *in,
+	     const struct net_device *out, const struct xt_match *match,
+	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_802_3_info *info = data;
 	const struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
@@ -37,9 +38,10 @@ static bool ebt_filter_802_3(const struct sk_buff *skb,
 	return true;
 }
 
-static struct ebt_match filter_802_3;
-static bool ebt_802_3_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_802_3_mt_check(const char *table, const void *entry,
+		   const struct xt_match *match, void *data,
+		   unsigned int hook_mask)
 {
 	const struct ebt_802_3_info *info = data;
 
@@ -53,8 +55,8 @@ static struct ebt_match filter_802_3 __read_mostly = {
 	.name		= EBT_802_3_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_802_3,
-	.check		= ebt_802_3_check,
+	.match		= ebt_802_3_mt,
+	.checkentry	= ebt_802_3_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_802_3_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 88b5c9118a7..84a306f085b 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -127,10 +127,10 @@ static int get_ip_src(const struct sk_buff *skb, __be32 *addr)
 	return 0;
 }
 
-static bool ebt_filter_among(const struct sk_buff *skb,
-			     const struct net_device *in,
-			     const struct net_device *out, const void *data,
-			     unsigned int datalen)
+static bool
+ebt_among_mt(const struct sk_buff *skb, const struct net_device *in,
+	     const struct net_device *out, const struct xt_match *match,
+	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_among_info *info = data;
 	const char *dmac, *smac;
@@ -174,9 +174,9 @@ static bool ebt_filter_among(const struct sk_buff *skb,
 }
 
 static bool
-ebt_among_check(const char *tablename, unsigned int hookmask,
-		const struct ebt_entry *e, void *data,
-		unsigned int datalen)
+ebt_among_mt_check(const char *table, const void *entry,
+		   const struct xt_match *match, void *data,
+		   unsigned int hook_mask)
 {
 	const struct ebt_entry_match *em =
 		container_of(data, const struct ebt_entry_match, data);
@@ -215,8 +215,8 @@ static struct ebt_match filter_among __read_mostly = {
 	.name		= EBT_AMONG_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_among,
-	.check		= ebt_among_check,
+	.match		= ebt_among_mt,
+	.checkentry	= ebt_among_mt_check,
 	.matchsize	= -1, /* special case */
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index 4a5226cbab8..6e7cd2f5ad7 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -15,9 +15,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_arp.h>
 
-static bool ebt_filter_arp(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out, const void *data, unsigned int datalen)
+static bool
+ebt_arp_mt(const struct sk_buff *skb, const struct net_device *in,
+	   const struct net_device *out, const struct xt_match *match,
+	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_arp_info *info = data;
 	const struct arphdr *ah;
@@ -101,10 +102,13 @@ static bool ebt_filter_arp(const struct sk_buff *skb,
 	return true;
 }
 
-static bool ebt_arp_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_arp_mt_check(const char *table, const void *entry,
+		 const struct xt_match *match, void *data,
+		 unsigned int hook_mask)
 {
 	const struct ebt_arp_info *info = data;
+	const struct ebt_entry *e = entry;
 
 	if ((e->ethproto != htons(ETH_P_ARP) &&
 	   e->ethproto != htons(ETH_P_RARP)) ||
@@ -119,8 +123,8 @@ static struct ebt_match filter_arp __read_mostly = {
 	.name		= EBT_ARP_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_arp,
-	.check		= ebt_arp_check,
+	.match		= ebt_arp_mt,
+	.checkentry	= ebt_arp_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_arp_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 7ab16556800..6f2f6589777 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -15,9 +15,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_arpreply.h>
 
-static unsigned int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
+		const struct net_device *out, unsigned int hook_nr,
+		const struct xt_target *target, const void *data)
 {
 	struct ebt_arpreply_info *info = (void *)data;
 	const __be32 *siptr, *diptr;
@@ -58,10 +59,13 @@ static unsigned int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
 	return info->target;
 }
 
-static bool ebt_target_reply_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_arpreply_tg_check(const char *tablename, const void *entry,
+		      const struct xt_target *target, void *data,
+		      unsigned int hookmask)
 {
 	const struct ebt_arpreply_info *info = data;
+	const struct ebt_entry *e = entry;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return false;
@@ -78,8 +82,8 @@ static struct ebt_target reply_target __read_mostly = {
 	.name		= EBT_ARPREPLY_TARGET,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.target		= ebt_target_reply,
-	.check		= ebt_target_reply_check,
+	.target		= ebt_arpreply_tg,
+	.checkentry	= ebt_arpreply_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_arpreply_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index 64838e2835a..b7cc013bd37 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -14,9 +14,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static unsigned int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_dnat_tg(struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, unsigned int hook_nr,
+	    const struct xt_target *target, const void *data)
 {
 	const struct ebt_nat_info *info = data;
 
@@ -27,8 +28,10 @@ static unsigned int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
 	return info->target;
 }
 
-static bool ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_dnat_tg_check(const char *tablename, const void *entry,
+		  const struct xt_target *target, void *data,
+		  unsigned int hookmask)
 {
 	const struct ebt_nat_info *info = data;
 
@@ -48,8 +51,8 @@ static struct ebt_target dnat __read_mostly = {
 	.name		= EBT_DNAT_TARGET,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.target		= ebt_target_dnat,
-	.check		= ebt_target_dnat_check,
+	.target		= ebt_dnat_tg,
+	.checkentry	= ebt_dnat_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index 0bef6f7bc83..e7f3b1776b0 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -24,10 +24,10 @@ struct tcpudphdr {
 	__be16 dst;
 };
 
-static bool ebt_filter_ip(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out, const void *data,
-   unsigned int datalen)
+static bool
+ebt_ip_mt(const struct sk_buff *skb, const struct net_device *in,
+	  const struct net_device *out, const struct xt_match *match,
+	  const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_ip_info *info = data;
 	const struct iphdr *ih;
@@ -79,10 +79,13 @@ static bool ebt_filter_ip(const struct sk_buff *skb,
 	return true;
 }
 
-static bool ebt_ip_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_ip_mt_check(const char *table, const void *entry,
+		const struct xt_match *match, void *data,
+		unsigned int hook_mask)
 {
 	const struct ebt_ip_info *info = data;
+	const struct ebt_entry *e = entry;
 
 	if (e->ethproto != htons(ETH_P_IP) ||
 	   e->invflags & EBT_IPROTO)
@@ -110,8 +113,8 @@ static struct ebt_match filter_ip __read_mostly = {
 	.name		= EBT_IP_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_ip,
-	.check		= ebt_ip_check,
+	.match		= ebt_ip_mt,
+	.checkentry	= ebt_ip_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index afcabe205b8..807685da293 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -27,10 +27,10 @@ struct tcpudphdr {
 	__be16 dst;
 };
 
-static bool ebt_filter_ip6(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out, const void *data,
-   unsigned int datalen)
+static bool
+ebt_ip6_mt(const struct sk_buff *skb, const struct net_device *in,
+	   const struct net_device *out, const struct xt_match *match,
+	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
 	const struct ipv6hdr *ih6;
@@ -92,9 +92,12 @@ static bool ebt_filter_ip6(const struct sk_buff *skb,
 	return true;
 }
 
-static bool ebt_ip6_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_ip6_mt_check(const char *table, const void *entry,
+		 const struct xt_match *match, void *data,
+		 unsigned int hook_mask)
 {
+	const struct ebt_entry *e = entry;
 	struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
 
 	if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
@@ -123,8 +126,8 @@ static struct ebt_match filter_ip6 =
 	.name		= EBT_IP6_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_ip6,
-	.check		= ebt_ip6_check,
+	.match		= ebt_ip6_mt,
+	.checkentry	= ebt_ip6_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_ip6_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 9ca0a2564c8..d3372739227 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -30,9 +30,10 @@ static DEFINE_SPINLOCK(limit_lock);
 
 #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ)
 
-static bool ebt_limit_match(const struct sk_buff *skb,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static bool
+ebt_limit_mt(const struct sk_buff *skb, const struct net_device *in,
+	     const struct net_device *out, const struct xt_match *match,
+	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	struct ebt_limit_info *info = (struct ebt_limit_info *)data;
 	unsigned long now = jiffies;
@@ -65,8 +66,10 @@ user2credits(u_int32_t user)
 	return (user * HZ * CREDITS_PER_JIFFY) / EBT_LIMIT_SCALE;
 }
 
-static bool ebt_limit_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_limit_mt_check(const char *table, const void *e,
+		   const struct xt_match *match, void *data,
+		   unsigned int hook_mask)
 {
 	struct ebt_limit_info *info = data;
 
@@ -90,8 +93,8 @@ static struct ebt_match ebt_limit_reg __read_mostly = {
 	.name		= EBT_LIMIT_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_limit_match,
-	.check		= ebt_limit_check,
+	.match		= ebt_limit_mt,
+	.checkentry	= ebt_limit_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_limit_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index c2e1c357025..424dfdf7f27 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -24,8 +24,10 @@
 
 static DEFINE_SPINLOCK(ebt_log_lock);
 
-static bool ebt_log_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_log_tg_check(const char *table, const void *entry,
+		 const struct xt_target *target, void *data,
+		 unsigned int hook_mask)
 {
 	struct ebt_log_info *info = data;
 
@@ -192,9 +194,10 @@ out:
 
 }
 
-static unsigned int ebt_log(const struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
+	   const struct net_device *out, unsigned int hooknr,
+	   const struct xt_target *target, const void *data)
 {
 	const struct ebt_log_info *info = data;
 	struct nf_loginfo li;
@@ -217,8 +220,8 @@ static struct ebt_watcher log =
 	.name		= EBT_LOG_WATCHER,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.watcher	= ebt_log,
-	.check		= ebt_log_check,
+	.target		= ebt_log_tg,
+	.checkentry	= ebt_log_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_log_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index 910721a1267..92c67271bd8 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -18,9 +18,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_t.h>
 
-static unsigned int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_mark_tg(struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, unsigned int hook_nr,
+	    const struct xt_target *target, const void *data)
 {
 	const struct ebt_mark_t_info *info = data;
 	int action = info->target & -16;
@@ -37,8 +38,10 @@ static unsigned int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static bool ebt_target_mark_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_mark_tg_check(const char *table, const void *e,
+		  const struct xt_target *target, void *data,
+		  unsigned int hookmask)
 {
 	const struct ebt_mark_t_info *info = data;
 	int tmp;
@@ -60,8 +63,8 @@ static struct ebt_target mark_target __read_mostly = {
 	.name		= EBT_MARK_TARGET,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.target		= ebt_target_mark,
-	.check		= ebt_target_mark_check,
+	.target		= ebt_mark_tg,
+	.checkentry	= ebt_mark_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_mark_t_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index 6512ad9b409..db64a0de4f7 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -12,9 +12,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_m.h>
 
-static bool ebt_filter_mark(const struct sk_buff *skb,
-   const struct net_device *in, const struct net_device *out, const void *data,
-   unsigned int datalen)
+static bool
+ebt_mark_mt(const struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, const struct xt_match *match,
+	    const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_mark_m_info *info = data;
 
@@ -23,8 +24,10 @@ static bool ebt_filter_mark(const struct sk_buff *skb,
 	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
 }
 
-static bool ebt_mark_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_mark_mt_check(const char *table, const void *e,
+		  const struct xt_match *match, void *data,
+		  unsigned int hook_mask)
 {
 	const struct ebt_mark_m_info *info = data;
 
@@ -41,8 +44,8 @@ static struct ebt_match filter_mark __read_mostly = {
 	.name		= EBT_MARK_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_mark,
-	.check		= ebt_mark_check,
+	.match		= ebt_mark_mt,
+	.checkentry	= ebt_mark_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_mark_m_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index aa0410c69a6..b415f887188 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -19,11 +19,10 @@
 #include <linux/netfilter_bridge/ebt_nflog.h>
 #include <net/netfilter/nf_log.h>
 
-static unsigned int ebt_nflog(const struct sk_buff *skb,
-			      unsigned int hooknr,
-			      const struct net_device *in,
-			      const struct net_device *out,
-			      const void *data, unsigned int datalen)
+static unsigned int
+ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
+	     const struct net_device *out, unsigned int hooknr,
+	     const struct xt_target *target, const void *data)
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 	struct nf_loginfo li;
@@ -37,10 +36,10 @@ static unsigned int ebt_nflog(const struct sk_buff *skb,
 	return EBT_CONTINUE;
 }
 
-static bool ebt_nflog_check(const char *tablename,
-			    unsigned int hookmask,
-			    const struct ebt_entry *e,
-			    void *data, unsigned int datalen)
+static bool
+ebt_nflog_tg_check(const char *table, const void *e,
+		   const struct xt_target *target, void *data,
+		   unsigned int hookmask)
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 
@@ -54,8 +53,8 @@ static struct ebt_watcher nflog __read_mostly = {
 	.name = EBT_NFLOG_WATCHER,
 	.revision = 0,
 	.family = NFPROTO_BRIDGE,
-	.watcher = ebt_nflog,
-	.check = ebt_nflog_check,
+	.target = ebt_nflog_tg,
+	.checkentry = ebt_nflog_tg_check,
 	.targetsize = XT_ALIGN(sizeof(struct ebt_nflog_info)),
 	.me = THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index a9acecc88e9..06393452ef9 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -12,19 +12,21 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_pkttype.h>
 
-static bool ebt_filter_pkttype(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out,
-   const void *data,
-   unsigned int datalen)
+static bool
+ebt_pkttype_mt(const struct sk_buff *skb, const struct net_device *in,
+	       const struct net_device *out, const struct xt_match *match,
+	       const void *data, int offset, unsigned int protoff,
+	       bool *hotdrop)
 {
 	const struct ebt_pkttype_info *info = data;
 
 	return (skb->pkt_type == info->pkt_type) ^ info->invert;
 }
 
-static bool ebt_pkttype_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_pkttype_mt_check(const char *table, const void *e,
+		     const struct xt_match *match, void *data,
+		     unsigned int hook_mask)
 {
 	const struct ebt_pkttype_info *info = data;
 
@@ -38,8 +40,8 @@ static struct ebt_match filter_pkttype __read_mostly = {
 	.name		= EBT_PKTTYPE_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_pkttype,
-	.check		= ebt_pkttype_check,
+	.match		= ebt_pkttype_mt,
+	.checkentry	= ebt_pkttype_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_pkttype_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 4c628108bcd..e9540cf4f6d 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -15,10 +15,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_redirect.h>
 
-static unsigned int ebt_target_redirect(struct sk_buff *skb,
-   unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_redirect_tg(struct sk_buff *skb, const struct net_device *in,
+		const struct net_device *out, unsigned int hooknr,
+		const struct xt_target *target, const void *data)
 {
 	const struct ebt_redirect_info *info = data;
 
@@ -34,8 +34,10 @@ static unsigned int ebt_target_redirect(struct sk_buff *skb,
 	return info->target;
 }
 
-static bool ebt_target_redirect_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_redirect_tg_check(const char *tablename, const void *e,
+		      const struct xt_target *target, void *data,
+		      unsigned int hookmask)
 {
 	const struct ebt_redirect_info *info = data;
 
@@ -54,8 +56,8 @@ static struct ebt_target redirect_target __read_mostly = {
 	.name		= EBT_REDIRECT_TARGET,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.target		= ebt_target_redirect,
-	.check		= ebt_target_redirect_check,
+	.target		= ebt_redirect_tg,
+	.checkentry	= ebt_redirect_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_redirect_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index 0e83de781c0..363d0051e04 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -16,9 +16,10 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static unsigned int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_snat_tg(struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, unsigned int hook_nr,
+	    const struct xt_target *target, const void *data)
 {
 	const struct ebt_nat_info *info = data;
 
@@ -43,8 +44,10 @@ out:
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static bool ebt_target_snat_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_snat_tg_check(const char *tablename, const void *e,
+		  const struct xt_target *target, void *data,
+		  unsigned int hookmask)
 {
 	const struct ebt_nat_info *info = data;
 	int tmp;
@@ -70,8 +73,8 @@ static struct ebt_target snat __read_mostly = {
 	.name		= EBT_SNAT_TARGET,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.target		= ebt_target_snat,
-	.check		= ebt_target_snat_check,
+	.target		= ebt_snat_tg,
+	.checkentry	= ebt_snat_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index e6d8f0c140a..7576d1d62a4 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -119,9 +119,10 @@ static bool ebt_filter_config(const struct ebt_stp_info *info,
 	return true;
 }
 
-static bool ebt_filter_stp(const struct sk_buff *skb,
-   const struct net_device *in,
-   const struct net_device *out, const void *data, unsigned int datalen)
+static bool
+ebt_stp_mt(const struct sk_buff *skb, const struct net_device *in,
+	   const struct net_device *out, const struct xt_match *match,
+	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_stp_info *info = data;
 	const struct stp_header *sp;
@@ -154,12 +155,15 @@ static bool ebt_filter_stp(const struct sk_buff *skb,
 	return true;
 }
 
-static bool ebt_stp_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_stp_mt_check(const char *table, const void *entry,
+		 const struct xt_match *match, void *data,
+		 unsigned int hook_mask)
 {
 	const struct ebt_stp_info *info = data;
 	const uint8_t bridge_ula[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
 	const uint8_t msk[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	const struct ebt_entry *e = entry;
 
 	if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
 	    !(info->bitmask & EBT_STP_MASK))
@@ -176,8 +180,8 @@ static struct ebt_match filter_stp __read_mostly = {
 	.name		= EBT_STP_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_stp,
-	.check		= ebt_stp_check,
+	.match		= ebt_stp_mt,
+	.checkentry	= ebt_stp_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_stp_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 076b44590f1..77ff9c46b26 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -246,9 +246,10 @@ static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
 	ebt_ulog_packet(hooknum, skb, in, out, &loginfo, prefix);
 }
 
-static unsigned int ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
-   const struct net_device *in, const struct net_device *out,
-   const void *data, unsigned int datalen)
+static unsigned int
+ebt_ulog_tg(struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, unsigned int hooknr,
+	    const struct xt_target *target, const void *data)
 {
 	const struct ebt_ulog_info *uloginfo = data;
 
@@ -256,8 +257,10 @@ static unsigned int ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
 	return EBT_CONTINUE;
 }
 
-static bool ebt_ulog_check(const char *tablename, unsigned int hookmask,
-   const struct ebt_entry *e, void *data, unsigned int datalen)
+static bool
+ebt_ulog_tg_check(const char *table, const void *entry,
+		  const struct xt_target *target, void *data,
+		  unsigned int hookmask)
 {
 	struct ebt_ulog_info *uloginfo = data;
 
@@ -276,8 +279,8 @@ static struct ebt_watcher ulog __read_mostly = {
 	.name		= EBT_ULOG_WATCHER,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.watcher	= ebt_ulog,
-	.check		= ebt_ulog_check,
+	.target		= ebt_ulog_tg,
+	.checkentry	= ebt_ulog_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_ulog_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index 9e3a39ae466..3af688b0fc3 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -41,10 +41,9 @@ MODULE_LICENSE("GPL");
 #define EXIT_ON_MISMATCH(_MATCH_,_MASK_) {if (!((info->_MATCH_ == _MATCH_)^!!(info->invflags & _MASK_))) return false; }
 
 static bool
-ebt_filter_vlan(const struct sk_buff *skb,
-		const struct net_device *in,
-		const struct net_device *out,
-		const void *data, unsigned int datalen)
+ebt_vlan_mt(const struct sk_buff *skb, const struct net_device *in,
+	    const struct net_device *out, const struct xt_match *match,
+	    const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
 	const struct ebt_vlan_info *info = data;
 	const struct vlan_hdr *fp;
@@ -88,11 +87,12 @@ ebt_filter_vlan(const struct sk_buff *skb,
 }
 
 static bool
-ebt_check_vlan(const char *tablename,
-	       unsigned int hooknr,
-	       const struct ebt_entry *e, void *data, unsigned int datalen)
+ebt_vlan_mt_check(const char *table, const void *entry,
+		  const struct xt_match *match, void *data,
+		  unsigned int hook_mask)
 {
 	struct ebt_vlan_info *info = data;
+	const struct ebt_entry *e = entry;
 
 	/* Is it 802.1Q frame checked? */
 	if (e->ethproto != htons(ETH_P_8021Q)) {
@@ -166,8 +166,8 @@ static struct ebt_match filter_vlan __read_mostly = {
 	.name		= EBT_VLAN_MATCH,
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
-	.match		= ebt_filter_vlan,
-	.check		= ebt_check_vlan,
+	.match		= ebt_vlan_mt,
+	.checkentry	= ebt_vlan_mt_check,
 	.matchsize	= XT_ALIGN(sizeof(struct ebt_vlan_info)),
 	.me		= THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index bc4b3f4f37c..340e1c6bdcb 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -67,11 +67,10 @@ static struct ebt_target ebt_standard_target = {
 };
 
 static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
-   const struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
+   struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
    const struct net_device *out)
 {
-	w->u.watcher->watcher(skb, hooknr, in, out, w->data,
-	   w->watcher_size);
+	w->u.watcher->target(skb, in, out, hooknr, NULL, w->data);
 	/* watchers don't give a verdict */
 	return 0;
 }
@@ -80,8 +79,7 @@ static inline int ebt_do_match (struct ebt_entry_match *m,
    const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out)
 {
-	return m->u.match->match(skb, in, out, m->data,
-	   m->match_size);
+	return m->u.match->match(skb, in, out, NULL, m->data, 0, 0, NULL);
 }
 
 static inline int ebt_dev_check(char *entry, const struct net_device *device)
@@ -195,8 +193,8 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 		if (!t->u.target->target)
 			verdict = ((struct ebt_standard_target *)t)->verdict;
 		else
-			verdict = t->u.target->target(skb, hook,
-			   in, out, t->data, t->target_size);
+			verdict = t->u.target->target(skb, in, out, hook,
+				  NULL, t->data);
 		if (verdict == EBT_ACCEPT) {
 			read_unlock_bh(&table->lock);
 			return NF_ACCEPT;
@@ -376,8 +374,8 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		       match->name, XT_ALIGN(match->matchsize), m->match_size);
 		goto out;
 	}
-	if (match->check &&
-	    !match->check(name, hookmask, e, m->data, m->match_size)) {
+	if (match->checkentry &&
+	    !match->checkentry(name, e, NULL, m->data, hookmask)) {
 		BUGPRINT("match->check failed\n");
 		goto out;
 	}
@@ -426,8 +424,8 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 		       w->watcher_size);
 		goto out;
 	}
-	if (watcher->check &&
-	    !watcher->check(name, hookmask, e, w->data, w->watcher_size)) {
+	if (watcher->checkentry &&
+	    !watcher->checkentry(name, e, NULL, w->data, hookmask)) {
 		BUGPRINT("watcher->check failed\n");
 		goto out;
 	}
@@ -609,7 +607,7 @@ ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
 	if (i && (*i)-- == 0)
 		return 1;
 	if (m->u.match->destroy)
-		m->u.match->destroy(m->data, m->match_size);
+		m->u.match->destroy(NULL, m->data);
 	module_put(m->u.match->me);
 
 	return 0;
@@ -621,7 +619,7 @@ ebt_cleanup_watcher(struct ebt_entry_watcher *w, unsigned int *i)
 	if (i && (*i)-- == 0)
 		return 1;
 	if (w->u.watcher->destroy)
-		w->u.watcher->destroy(w->data, w->watcher_size);
+		w->u.watcher->destroy(NULL, w->data);
 	module_put(w->u.watcher->me);
 
 	return 0;
@@ -641,7 +639,7 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
 	EBT_MATCH_ITERATE(e, ebt_cleanup_match, NULL);
 	t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
 	if (t->u.target->destroy)
-		t->u.target->destroy(t->data, t->target_size);
+		t->u.target->destroy(NULL, t->data);
 	module_put(t->u.target->me);
 
 	return 0;
@@ -755,8 +753,8 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 		module_put(t->u.target->me);
 		ret = -EINVAL;
 		goto cleanup_watchers;
-	} else if (t->u.target->check &&
-	    !t->u.target->check(name, hookmask, e, t->data, t->target_size)) {
+	} else if (t->u.target->checkentry &&
+	    !t->u.target->checkentry(name, e, NULL, t->data, hookmask)) {
 		module_put(t->u.target->me);
 		ret = -EFAULT;
 		goto cleanup_watchers;
-- 
cgit v1.2.3


From 043ef46c7690bfdbd5b012e15812a14a19ca5604 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:15 +0200
Subject: netfilter: move Ebtables to use Xtables

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/Kconfig        |   1 +
 net/bridge/netfilter/ebt_802_3.c    |   8 +-
 net/bridge/netfilter/ebt_among.c    |  14 +--
 net/bridge/netfilter/ebt_arp.c      |   8 +-
 net/bridge/netfilter/ebt_arpreply.c |   8 +-
 net/bridge/netfilter/ebt_dnat.c     |   8 +-
 net/bridge/netfilter/ebt_ip.c       |   8 +-
 net/bridge/netfilter/ebt_ip6.c      |   9 +-
 net/bridge/netfilter/ebt_limit.c    |   8 +-
 net/bridge/netfilter/ebt_log.c      |   9 +-
 net/bridge/netfilter/ebt_mark.c     |   8 +-
 net/bridge/netfilter/ebt_mark_m.c   |   8 +-
 net/bridge/netfilter/ebt_nflog.c    |  16 ++--
 net/bridge/netfilter/ebt_pkttype.c  |   8 +-
 net/bridge/netfilter/ebt_redirect.c |   8 +-
 net/bridge/netfilter/ebt_snat.c     |   8 +-
 net/bridge/netfilter/ebt_stp.c      |   8 +-
 net/bridge/netfilter/ebt_ulog.c     |  10 +--
 net/bridge/netfilter/ebt_vlan.c     |   8 +-
 net/bridge/netfilter/ebtables.c     | 173 ++++++++++++++----------------------
 20 files changed, 148 insertions(+), 188 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index 90947979499..e7c197ffb2f 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -7,6 +7,7 @@ menu "Bridge: Netfilter Configuration"
 
 config BRIDGE_NF_EBTABLES
 	tristate "Ethernet Bridge tables (ebtables) support"
+	select NETFILTER_XTABLES
 	help
 	  ebtables is a general, extensible frame/packet identification
 	  framework. Say 'Y' or 'M' here if you want to do Ethernet
diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 6f1a69c28ed..6fc2a59e09a 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -51,8 +51,8 @@ ebt_802_3_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_802_3 __read_mostly = {
-	.name		= EBT_802_3_MATCH,
+static struct xt_match ebt_802_3_mt_reg __read_mostly = {
+	.name		= "802_3",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_802_3_mt,
@@ -63,12 +63,12 @@ static struct ebt_match filter_802_3 __read_mostly = {
 
 static int __init ebt_802_3_init(void)
 {
-	return ebt_register_match(&filter_802_3);
+	return xt_register_match(&ebt_802_3_mt_reg);
 }
 
 static void __exit ebt_802_3_fini(void)
 {
-	ebt_unregister_match(&filter_802_3);
+	xt_unregister_match(&ebt_802_3_mt_reg);
 }
 
 module_init(ebt_802_3_init);
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 84a306f085b..084559e1840 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -7,12 +7,12 @@
  *  August, 2003
  *
  */
-
-#include <linux/netfilter_bridge/ebtables.h>
-#include <linux/netfilter_bridge/ebt_among.h>
 #include <linux/ip.h>
 #include <linux/if_arp.h>
 #include <linux/module.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_among.h>
 
 static bool ebt_mac_wormhash_contains(const struct ebt_mac_wormhash *wh,
 				      const char *mac, __be32 ip)
@@ -211,8 +211,8 @@ ebt_among_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_among __read_mostly = {
-	.name		= EBT_AMONG_MATCH,
+static struct xt_match ebt_among_mt_reg __read_mostly = {
+	.name		= "among",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_among_mt,
@@ -223,12 +223,12 @@ static struct ebt_match filter_among __read_mostly = {
 
 static int __init ebt_among_init(void)
 {
-	return ebt_register_match(&filter_among);
+	return xt_register_match(&ebt_among_mt_reg);
 }
 
 static void __exit ebt_among_fini(void)
 {
-	ebt_unregister_match(&filter_among);
+	xt_unregister_match(&ebt_among_mt_reg);
 }
 
 module_init(ebt_among_init);
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index 6e7cd2f5ad7..a073dffe7a1 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -119,8 +119,8 @@ ebt_arp_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_arp __read_mostly = {
-	.name		= EBT_ARP_MATCH,
+static struct xt_match ebt_arp_mt_reg __read_mostly = {
+	.name		= "arp",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_arp_mt,
@@ -131,12 +131,12 @@ static struct ebt_match filter_arp __read_mostly = {
 
 static int __init ebt_arp_init(void)
 {
-	return ebt_register_match(&filter_arp);
+	return xt_register_match(&ebt_arp_mt_reg);
 }
 
 static void __exit ebt_arp_fini(void)
 {
-	ebt_unregister_match(&filter_arp);
+	xt_unregister_match(&ebt_arp_mt_reg);
 }
 
 module_init(ebt_arp_init);
diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 6f2f6589777..8071b64af46 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -78,8 +78,8 @@ ebt_arpreply_tg_check(const char *tablename, const void *entry,
 	return true;
 }
 
-static struct ebt_target reply_target __read_mostly = {
-	.name		= EBT_ARPREPLY_TARGET,
+static struct xt_target ebt_arpreply_tg_reg __read_mostly = {
+	.name		= "arpreply",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_arpreply_tg,
@@ -90,12 +90,12 @@ static struct ebt_target reply_target __read_mostly = {
 
 static int __init ebt_arpreply_init(void)
 {
-	return ebt_register_target(&reply_target);
+	return xt_register_target(&ebt_arpreply_tg_reg);
 }
 
 static void __exit ebt_arpreply_fini(void)
 {
-	ebt_unregister_target(&reply_target);
+	xt_unregister_target(&ebt_arpreply_tg_reg);
 }
 
 module_init(ebt_arpreply_init);
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index b7cc013bd37..d2211c4a477 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -47,8 +47,8 @@ ebt_dnat_tg_check(const char *tablename, const void *entry,
 	return true;
 }
 
-static struct ebt_target dnat __read_mostly = {
-	.name		= EBT_DNAT_TARGET,
+static struct xt_target ebt_dnat_tg_reg __read_mostly = {
+	.name		= "dnat",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_dnat_tg,
@@ -59,12 +59,12 @@ static struct ebt_target dnat __read_mostly = {
 
 static int __init ebt_dnat_init(void)
 {
-	return ebt_register_target(&dnat);
+	return xt_register_target(&ebt_dnat_tg_reg);
 }
 
 static void __exit ebt_dnat_fini(void)
 {
-	ebt_unregister_target(&dnat);
+	xt_unregister_target(&ebt_dnat_tg_reg);
 }
 
 module_init(ebt_dnat_init);
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index e7f3b1776b0..b42c7ce799b 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -109,8 +109,8 @@ ebt_ip_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_ip __read_mostly = {
-	.name		= EBT_IP_MATCH,
+static struct xt_match ebt_ip_mt_reg __read_mostly = {
+	.name		= "ip",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_ip_mt,
@@ -121,12 +121,12 @@ static struct ebt_match filter_ip __read_mostly = {
 
 static int __init ebt_ip_init(void)
 {
-	return ebt_register_match(&filter_ip);
+	return xt_register_match(&ebt_ip_mt_reg);
 }
 
 static void __exit ebt_ip_fini(void)
 {
-	ebt_unregister_match(&filter_ip);
+	xt_unregister_match(&ebt_ip_mt_reg);
 }
 
 module_init(ebt_ip_init);
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 807685da293..317e624ae59 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -121,9 +121,8 @@ ebt_ip6_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_ip6 =
-{
-	.name		= EBT_IP6_MATCH,
+static struct xt_match ebt_ip6_mt_reg __read_mostly = {
+	.name		= "ip6",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_ip6_mt,
@@ -134,12 +133,12 @@ static struct ebt_match filter_ip6 =
 
 static int __init ebt_ip6_init(void)
 {
-	return ebt_register_match(&filter_ip6);
+	return xt_register_match(&ebt_ip6_mt_reg);
 }
 
 static void __exit ebt_ip6_fini(void)
 {
-	ebt_unregister_match(&filter_ip6);
+	xt_unregister_match(&ebt_ip6_mt_reg);
 }
 
 module_init(ebt_ip6_init);
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index d3372739227..43d9a500363 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -89,8 +89,8 @@ ebt_limit_mt_check(const char *table, const void *e,
 	return true;
 }
 
-static struct ebt_match ebt_limit_reg __read_mostly = {
-	.name		= EBT_LIMIT_MATCH,
+static struct xt_match ebt_limit_mt_reg __read_mostly = {
+	.name		= "limit",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_limit_mt,
@@ -101,12 +101,12 @@ static struct ebt_match ebt_limit_reg __read_mostly = {
 
 static int __init ebt_limit_init(void)
 {
-	return ebt_register_match(&ebt_limit_reg);
+	return xt_register_match(&ebt_limit_mt_reg);
 }
 
 static void __exit ebt_limit_fini(void)
 {
-	ebt_unregister_match(&ebt_limit_reg);
+	xt_unregister_match(&ebt_limit_mt_reg);
 }
 
 module_init(ebt_limit_init);
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 424dfdf7f27..b40f9ed4c34 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -215,9 +215,8 @@ ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
 	return EBT_CONTINUE;
 }
 
-static struct ebt_watcher log =
-{
-	.name		= EBT_LOG_WATCHER,
+static struct xt_target ebt_log_tg_reg __read_mostly = {
+	.name		= "log",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_log_tg,
@@ -236,7 +235,7 @@ static int __init ebt_log_init(void)
 {
 	int ret;
 
-	ret = ebt_register_watcher(&log);
+	ret = xt_register_target(&ebt_log_tg_reg);
 	if (ret < 0)
 		return ret;
 	nf_log_register(NFPROTO_BRIDGE, &ebt_log_logger);
@@ -246,7 +245,7 @@ static int __init ebt_log_init(void)
 static void __exit ebt_log_fini(void)
 {
 	nf_log_unregister(&ebt_log_logger);
-	ebt_unregister_watcher(&log);
+	xt_unregister_target(&ebt_log_tg_reg);
 }
 
 module_init(ebt_log_init);
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index 92c67271bd8..dff19fc91cf 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -59,8 +59,8 @@ ebt_mark_tg_check(const char *table, const void *e,
 	return true;
 }
 
-static struct ebt_target mark_target __read_mostly = {
-	.name		= EBT_MARK_TARGET,
+static struct xt_target ebt_mark_tg_reg __read_mostly = {
+	.name		= "mark",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_mark_tg,
@@ -71,12 +71,12 @@ static struct ebt_target mark_target __read_mostly = {
 
 static int __init ebt_mark_init(void)
 {
-	return ebt_register_target(&mark_target);
+	return xt_register_target(&ebt_mark_tg_reg);
 }
 
 static void __exit ebt_mark_fini(void)
 {
-	ebt_unregister_target(&mark_target);
+	xt_unregister_target(&ebt_mark_tg_reg);
 }
 
 module_init(ebt_mark_init);
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index db64a0de4f7..aa6781c7f98 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -40,8 +40,8 @@ ebt_mark_mt_check(const char *table, const void *e,
 	return true;
 }
 
-static struct ebt_match filter_mark __read_mostly = {
-	.name		= EBT_MARK_MATCH,
+static struct xt_match ebt_mark_mt_reg __read_mostly = {
+	.name		= "mark_m",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_mark_mt,
@@ -52,12 +52,12 @@ static struct ebt_match filter_mark __read_mostly = {
 
 static int __init ebt_mark_m_init(void)
 {
-	return ebt_register_match(&filter_mark);
+	return xt_register_match(&ebt_mark_mt_reg);
 }
 
 static void __exit ebt_mark_m_fini(void)
 {
-	ebt_unregister_match(&filter_mark);
+	xt_unregister_match(&ebt_mark_mt_reg);
 }
 
 module_init(ebt_mark_m_init);
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index b415f887188..917ac360079 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -49,24 +49,24 @@ ebt_nflog_tg_check(const char *table, const void *e,
 	return true;
 }
 
-static struct ebt_watcher nflog __read_mostly = {
-	.name = EBT_NFLOG_WATCHER,
-	.revision = 0,
-	.family = NFPROTO_BRIDGE,
-	.target = ebt_nflog_tg,
+static struct xt_target ebt_nflog_tg_reg __read_mostly = {
+	.name       = "nflog",
+	.revision   = 0,
+	.family     = NFPROTO_BRIDGE,
+	.target     = ebt_nflog_tg,
 	.checkentry = ebt_nflog_tg_check,
 	.targetsize = XT_ALIGN(sizeof(struct ebt_nflog_info)),
-	.me = THIS_MODULE,
+	.me         = THIS_MODULE,
 };
 
 static int __init ebt_nflog_init(void)
 {
-	return ebt_register_watcher(&nflog);
+	return xt_register_target(&ebt_nflog_tg_reg);
 }
 
 static void __exit ebt_nflog_fini(void)
 {
-	ebt_unregister_watcher(&nflog);
+	xt_unregister_target(&ebt_nflog_tg_reg);
 }
 
 module_init(ebt_nflog_init);
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 06393452ef9..1c04ce5a52c 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -36,8 +36,8 @@ ebt_pkttype_mt_check(const char *table, const void *e,
 	return true;
 }
 
-static struct ebt_match filter_pkttype __read_mostly = {
-	.name		= EBT_PKTTYPE_MATCH,
+static struct xt_match ebt_pkttype_mt_reg __read_mostly = {
+	.name		= "pkttype",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_pkttype_mt,
@@ -48,12 +48,12 @@ static struct ebt_match filter_pkttype __read_mostly = {
 
 static int __init ebt_pkttype_init(void)
 {
-	return ebt_register_match(&filter_pkttype);
+	return xt_register_match(&ebt_pkttype_mt_reg);
 }
 
 static void __exit ebt_pkttype_fini(void)
 {
-	ebt_unregister_match(&filter_pkttype);
+	xt_unregister_match(&ebt_pkttype_mt_reg);
 }
 
 module_init(ebt_pkttype_init);
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index e9540cf4f6d..1b7684ffe40 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -52,8 +52,8 @@ ebt_redirect_tg_check(const char *tablename, const void *e,
 	return true;
 }
 
-static struct ebt_target redirect_target __read_mostly = {
-	.name		= EBT_REDIRECT_TARGET,
+static struct xt_target ebt_redirect_tg_reg __read_mostly = {
+	.name		= "redirect",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_redirect_tg,
@@ -64,12 +64,12 @@ static struct ebt_target redirect_target __read_mostly = {
 
 static int __init ebt_redirect_init(void)
 {
-	return ebt_register_target(&redirect_target);
+	return xt_register_target(&ebt_redirect_tg_reg);
 }
 
 static void __exit ebt_redirect_fini(void)
 {
-	ebt_unregister_target(&redirect_target);
+	xt_unregister_target(&ebt_redirect_tg_reg);
 }
 
 module_init(ebt_redirect_init);
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index 363d0051e04..c90217a4f9e 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -69,8 +69,8 @@ ebt_snat_tg_check(const char *tablename, const void *e,
 	return true;
 }
 
-static struct ebt_target snat __read_mostly = {
-	.name		= EBT_SNAT_TARGET,
+static struct xt_target ebt_snat_tg_reg __read_mostly = {
+	.name		= "snat",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_snat_tg,
@@ -81,12 +81,12 @@ static struct ebt_target snat __read_mostly = {
 
 static int __init ebt_snat_init(void)
 {
-	return ebt_register_target(&snat);
+	return xt_register_target(&ebt_snat_tg_reg);
 }
 
 static void __exit ebt_snat_fini(void)
 {
-	ebt_unregister_target(&snat);
+	xt_unregister_target(&ebt_snat_tg_reg);
 }
 
 module_init(ebt_snat_init);
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 7576d1d62a4..28bb48b67a8 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -176,8 +176,8 @@ ebt_stp_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_stp __read_mostly = {
-	.name		= EBT_STP_MATCH,
+static struct xt_match ebt_stp_mt_reg __read_mostly = {
+	.name		= "stp",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_stp_mt,
@@ -188,12 +188,12 @@ static struct ebt_match filter_stp __read_mostly = {
 
 static int __init ebt_stp_init(void)
 {
-	return ebt_register_match(&filter_stp);
+	return xt_register_match(&ebt_stp_mt_reg);
 }
 
 static void __exit ebt_stp_fini(void)
 {
-	ebt_unregister_match(&filter_stp);
+	xt_unregister_match(&ebt_stp_mt_reg);
 }
 
 module_init(ebt_stp_init);
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 77ff9c46b26..25ca6467349 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -275,8 +275,8 @@ ebt_ulog_tg_check(const char *table, const void *entry,
 	return 0;
 }
 
-static struct ebt_watcher ulog __read_mostly = {
-	.name		= EBT_ULOG_WATCHER,
+static struct xt_target ebt_ulog_tg_reg __read_mostly = {
+	.name		= "ulog",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.target		= ebt_ulog_tg,
@@ -286,7 +286,7 @@ static struct ebt_watcher ulog __read_mostly = {
 };
 
 static const struct nf_logger ebt_ulog_logger = {
-	.name		= EBT_ULOG_WATCHER,
+	.name		= "ulog",
 	.logfn		= &ebt_log_packet,
 	.me		= THIS_MODULE,
 };
@@ -315,7 +315,7 @@ static int __init ebt_ulog_init(void)
 		printk(KERN_WARNING KBUILD_MODNAME ": out of memory trying to "
 		       "call netlink_kernel_create\n");
 		ret = false;
-	} else if (ebt_register_watcher(&ulog) != 0) {
+	} else if (xt_register_target(&ebt_ulog_tg_reg) != 0) {
 		netlink_kernel_release(ebtulognl);
 	}
 
@@ -331,7 +331,7 @@ static void __exit ebt_ulog_fini(void)
 	int i;
 
 	nf_log_unregister(&ebt_ulog_logger);
-	ebt_unregister_watcher(&ulog);
+	xt_unregister_target(&ebt_ulog_tg_reg);
 	for (i = 0; i < EBT_ULOG_MAXNLGROUPS; i++) {
 		ub = &ulog_buffers[i];
 		if (timer_pending(&ub->timer))
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index 3af688b0fc3..5addef6d62f 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -162,8 +162,8 @@ ebt_vlan_mt_check(const char *table, const void *entry,
 	return true;
 }
 
-static struct ebt_match filter_vlan __read_mostly = {
-	.name		= EBT_VLAN_MATCH,
+static struct xt_match ebt_vlan_mt_reg __read_mostly = {
+	.name		= "vlan",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
 	.match		= ebt_vlan_mt,
@@ -177,12 +177,12 @@ static int __init ebt_vlan_init(void)
 	DEBUG_MSG("ebtables 802.1Q extension module v"
 		  MODULE_VERS "\n");
 	DEBUG_MSG("module debug=%d\n", !!debug);
-	return ebt_register_match(&filter_vlan);
+	return xt_register_match(&ebt_vlan_mt_reg);
 }
 
 static void __exit ebt_vlan_fini(void)
 {
-	ebt_unregister_match(&filter_vlan);
+	xt_unregister_match(&ebt_vlan_mt_reg);
 }
 
 module_init(ebt_vlan_init);
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 340e1c6bdcb..c4f7a2e8ed3 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -60,17 +60,18 @@ static LIST_HEAD(ebt_targets);
 static LIST_HEAD(ebt_matches);
 static LIST_HEAD(ebt_watchers);
 
-static struct ebt_target ebt_standard_target = {
+static struct xt_target ebt_standard_target = {
 	.name       = "standard",
 	.revision   = 0,
 	.family     = NFPROTO_BRIDGE,
+	.targetsize = sizeof(int),
 };
 
 static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
    struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
    const struct net_device *out)
 {
-	w->u.watcher->target(skb, in, out, hooknr, NULL, w->data);
+	w->u.watcher->target(skb, in, out, hooknr, w->u.watcher, w->data);
 	/* watchers don't give a verdict */
 	return 0;
 }
@@ -79,7 +80,7 @@ static inline int ebt_do_match (struct ebt_entry_match *m,
    const struct sk_buff *skb, const struct net_device *in,
    const struct net_device *out)
 {
-	return m->u.match->match(skb, in, out, NULL, m->data, 0, 0, NULL);
+	return m->u.match->match(skb, in, out, m->u.match, m->data, 0, 0, NULL);
 }
 
 static inline int ebt_dev_check(char *entry, const struct net_device *device)
@@ -194,7 +195,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 			verdict = ((struct ebt_standard_target *)t)->verdict;
 		else
 			verdict = t->u.target->target(skb, in, out, hook,
-				  NULL, t->data);
+				  t->u.target, t->data);
 		if (verdict == EBT_ACCEPT) {
 			read_unlock_bh(&table->lock);
 			return NF_ACCEPT;
@@ -336,104 +337,73 @@ static inline int
 ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
    const char *name, unsigned int hookmask, unsigned int *cnt)
 {
-	struct ebt_match *match;
+	struct xt_match *match;
 	size_t left = ((char *)e + e->watchers_offset) - (char *)m;
 	int ret;
 
 	if (left < sizeof(struct ebt_entry_match) ||
 	    left - sizeof(struct ebt_entry_match) < m->match_size)
 		return -EINVAL;
-	match = find_match_lock(m->u.name, &ret, &ebt_mutex);
-	if (!match)
-		return ret;
-	m->u.match = match;
-	if (!try_module_get(match->me)) {
-		mutex_unlock(&ebt_mutex);
+
+	match = try_then_request_module(xt_find_match(NFPROTO_BRIDGE,
+		m->u.name, 0), "ebt_%s", m->u.name);
+	if (IS_ERR(match))
+		return PTR_ERR(match);
+	if (match == NULL)
 		return -ENOENT;
-	}
-	mutex_unlock(&ebt_mutex);
-	if (match->family != NFPROTO_BRIDGE) {
-		printk(KERN_WARNING "ebtables: %s match: not for ebtables?\n",
-		       match->name);
-		goto out;
-	}
-	if (match->revision != 0) {
-		printk(KERN_WARNING "ebtables: %s match: ebtables is not "
-		       "supporting revisions at this time\n",
-		       match->name);
-		goto out;
-	}
-	if (XT_ALIGN(match->matchsize) != m->match_size &&
-	    match->matchsize != -1) {
-		/*
-		 * ebt_among is exempt from centralized matchsize checking
-		 * because it uses a dynamic-size data set.
-		 */
-		printk(KERN_WARNING "ebtables: %s match: "
-		       "invalid size %Zu != %u\n",
-		       match->name, XT_ALIGN(match->matchsize), m->match_size);
-		goto out;
-	}
-	if (match->checkentry &&
+	m->u.match = match;
+
+	ret = xt_check_match(match, NFPROTO_BRIDGE, m->match_size,
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	if (ret < 0) {
+		module_put(match->me);
+		return ret;
+	} else if (match->checkentry != NULL &&
 	    !match->checkentry(name, e, NULL, m->data, hookmask)) {
+		module_put(match->me);
 		BUGPRINT("match->check failed\n");
-		goto out;
+		return -EINVAL;
 	}
+
 	(*cnt)++;
 	return 0;
- out:
-	module_put(match->me);
-	return -EINVAL;
 }
 
 static inline int
 ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
    const char *name, unsigned int hookmask, unsigned int *cnt)
 {
-	struct ebt_watcher *watcher;
+	struct xt_target *watcher;
 	size_t left = ((char *)e + e->target_offset) - (char *)w;
 	int ret;
 
 	if (left < sizeof(struct ebt_entry_watcher) ||
 	   left - sizeof(struct ebt_entry_watcher) < w->watcher_size)
 		return -EINVAL;
-	watcher = find_watcher_lock(w->u.name, &ret, &ebt_mutex);
-	if (!watcher)
-		return ret;
-	w->u.watcher = watcher;
-	if (!try_module_get(watcher->me)) {
-		mutex_unlock(&ebt_mutex);
+
+	watcher = try_then_request_module(
+		  xt_find_target(NFPROTO_BRIDGE, w->u.name, 0),
+		  "ebt_%s", w->u.name);
+	if (IS_ERR(watcher))
+		return PTR_ERR(watcher);
+	if (watcher == NULL)
 		return -ENOENT;
-	}
-	mutex_unlock(&ebt_mutex);
-	if (watcher->family != NFPROTO_BRIDGE) {
-		printk(KERN_WARNING "ebtables: %s watcher: not for ebtables?\n",
-		       watcher->name);
-		goto out;
-	}
-	if (watcher->revision != 0) {
-		printk(KERN_WARNING "ebtables: %s watcher: ebtables is not "
-		       "supporting revisions at this time\n",
-		       watcher->name);
-		goto out;
-	}
-	if (XT_ALIGN(watcher->targetsize) != w->watcher_size) {
-		printk(KERN_WARNING "ebtables: %s watcher: "
-		       "invalid size %Zu != %u\n",
-		       watcher->name, XT_ALIGN(watcher->targetsize),
-		       w->watcher_size);
-		goto out;
-	}
-	if (watcher->checkentry &&
+	w->u.watcher = watcher;
+
+	ret = xt_check_target(watcher, NFPROTO_BRIDGE, w->watcher_size,
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	if (ret < 0) {
+		module_put(watcher->me);
+		return ret;
+	} else if (watcher->checkentry != NULL &&
 	    !watcher->checkentry(name, e, NULL, w->data, hookmask)) {
+		module_put(watcher->me);
 		BUGPRINT("watcher->check failed\n");
-		goto out;
+		return -EINVAL;
 	}
+
 	(*cnt)++;
 	return 0;
- out:
-	module_put(watcher->me);
-	return -EINVAL;
 }
 
 static int ebt_verify_pointers(struct ebt_replace *repl,
@@ -607,7 +577,7 @@ ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
 	if (i && (*i)-- == 0)
 		return 1;
 	if (m->u.match->destroy)
-		m->u.match->destroy(NULL, m->data);
+		m->u.match->destroy(m->u.match, m->data);
 	module_put(m->u.match->me);
 
 	return 0;
@@ -619,7 +589,7 @@ ebt_cleanup_watcher(struct ebt_entry_watcher *w, unsigned int *i)
 	if (i && (*i)-- == 0)
 		return 1;
 	if (w->u.watcher->destroy)
-		w->u.watcher->destroy(NULL, w->data);
+		w->u.watcher->destroy(w->u.watcher, w->data);
 	module_put(w->u.watcher->me);
 
 	return 0;
@@ -639,7 +609,7 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
 	EBT_MATCH_ITERATE(e, ebt_cleanup_match, NULL);
 	t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
 	if (t->u.target->destroy)
-		t->u.target->destroy(NULL, t->data);
+		t->u.target->destroy(t->u.target, t->data);
 	module_put(t->u.target->me);
 
 	return 0;
@@ -651,7 +621,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
    struct ebt_cl_stack *cl_s, unsigned int udc_cnt)
 {
 	struct ebt_entry_target *t;
-	struct ebt_target *target;
+	struct xt_target *target;
 	unsigned int i, j, hook = 0, hookmask = 0;
 	size_t gap;
 	int ret;
@@ -704,27 +674,15 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 		goto cleanup_watchers;
 	t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
 	gap = e->next_offset - e->target_offset;
-	target = find_target_lock(t->u.name, &ret, &ebt_mutex);
-	if (!target)
-		goto cleanup_watchers;
-	if (!try_module_get(target->me)) {
-		mutex_unlock(&ebt_mutex);
-		ret = -ENOENT;
-		goto cleanup_watchers;
-	}
-	mutex_unlock(&ebt_mutex);
 
-	if (target->family != NFPROTO_BRIDGE) {
-		printk(KERN_WARNING "ebtables: %s target: not for ebtables?\n",
-		       target->name);
-		ret = -EINVAL;
+	target = try_then_request_module(
+		 xt_find_target(NFPROTO_BRIDGE, t->u.name, 0),
+		 "ebt_%s", t->u.name);
+	if (IS_ERR(target)) {
+		ret = PTR_ERR(target);
 		goto cleanup_watchers;
-	}
-	if (target->revision != 0) {
-		printk(KERN_WARNING "ebtables: %s target: ebtables is not "
-		       "supporting revisions at this time\n",
-		       target->name);
-		ret = -EINVAL;
+	} else if (target == NULL) {
+		ret = -ENOENT;
 		goto cleanup_watchers;
 	}
 
@@ -745,13 +703,12 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 		module_put(t->u.target->me);
 		ret = -EFAULT;
 		goto cleanup_watchers;
-	} else if (XT_ALIGN(target->targetsize) != t->target_size) {
-		printk(KERN_WARNING "ebtables: %s target: "
-		       "invalid size %Zu != %u\n",
-		       target->name, XT_ALIGN(target->targetsize),
-		       t->target_size);
-		module_put(t->u.target->me);
-		ret = -EINVAL;
+	}
+
+	ret = xt_check_target(target, NFPROTO_BRIDGE, t->target_size,
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	if (ret < 0) {
+		module_put(target->me);
 		goto cleanup_watchers;
 	} else if (t->u.target->checkentry &&
 	    !t->u.target->checkentry(name, e, NULL, t->data, hookmask)) {
@@ -1589,11 +1546,14 @@ static int __init ebtables_init(void)
 {
 	int ret;
 
-	mutex_lock(&ebt_mutex);
-	list_add(&ebt_standard_target.list, &ebt_targets);
-	mutex_unlock(&ebt_mutex);
-	if ((ret = nf_register_sockopt(&ebt_sockopts)) < 0)
+	ret = xt_register_target(&ebt_standard_target);
+	if (ret < 0)
 		return ret;
+	ret = nf_register_sockopt(&ebt_sockopts);
+	if (ret < 0) {
+		xt_unregister_target(&ebt_standard_target);
+		return ret;
+	}
 
 	printk(KERN_INFO "Ebtables v2.0 registered\n");
 	return 0;
@@ -1602,6 +1562,7 @@ static int __init ebtables_init(void)
 static void __exit ebtables_fini(void)
 {
 	nf_unregister_sockopt(&ebt_sockopts);
+	xt_unregister_target(&ebt_standard_target);
 	printk(KERN_INFO "Ebtables v2.0 unregistered\n");
 }
 
-- 
cgit v1.2.3


From f2ff525c8dae57b3cda51d76443f60f764f34202 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:15 +0200
Subject: netfilter: ebtables: use generic table checking

Ebtables ORs (1 << NF_BR_NUMHOOKS) into the hook mask to indicate that
the extension was called from a base chain. So this also needs to be
present in the extensions' ->hooks.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_arpreply.c | 4 ++--
 net/bridge/netfilter/ebt_dnat.c     | 2 ++
 net/bridge/netfilter/ebt_redirect.c | 2 ++
 net/bridge/netfilter/ebt_snat.c     | 6 ++----
 4 files changed, 8 insertions(+), 6 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 8071b64af46..0e51c8d7e5f 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -73,8 +73,6 @@ ebt_arpreply_tg_check(const char *tablename, const void *entry,
 	    e->invflags & EBT_IPROTO)
 		return false;
 	CLEAR_BASE_CHAIN_BIT;
-	if (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING))
-		return false;
 	return true;
 }
 
@@ -82,6 +80,8 @@ static struct xt_target ebt_arpreply_tg_reg __read_mostly = {
 	.name		= "arpreply",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
+	.table		= "nat",
+	.hooks		= (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING),
 	.target		= ebt_arpreply_tg,
 	.checkentry	= ebt_arpreply_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_arpreply_info)),
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index d2211c4a477..cb80101e412 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -51,6 +51,8 @@ static struct xt_target ebt_dnat_tg_reg __read_mostly = {
 	.name		= "dnat",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
+	.hooks		= (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) |
+			  (1 << NF_BR_LOCAL_OUT) | (1 << NF_BR_BROUTING),
 	.target		= ebt_dnat_tg,
 	.checkentry	= ebt_dnat_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 1b7684ffe40..a50ffbe0e4f 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -56,6 +56,8 @@ static struct xt_target ebt_redirect_tg_reg __read_mostly = {
 	.name		= "redirect",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
+	.hooks		= (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_PRE_ROUTING) |
+			  (1 << NF_BR_BROUTING),
 	.target		= ebt_redirect_tg,
 	.checkentry	= ebt_redirect_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_redirect_info)),
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index c90217a4f9e..8a55c7d49b5 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -56,10 +56,6 @@ ebt_snat_tg_check(const char *tablename, const void *e,
 	if (BASE_CHAIN && tmp == EBT_RETURN)
 		return false;
 	CLEAR_BASE_CHAIN_BIT;
-	if (strcmp(tablename, "nat"))
-		return false;
-	if (hookmask & ~(1 << NF_BR_POST_ROUTING))
-		return false;
 
 	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
 		return false;
@@ -73,6 +69,8 @@ static struct xt_target ebt_snat_tg_reg __read_mostly = {
 	.name		= "snat",
 	.revision	= 0,
 	.family		= NFPROTO_BRIDGE,
+	.table		= "nat",
+	.hooks		= (1 << NF_BR_NUMHOOKS) | (1 << NF_BR_POST_ROUTING),
 	.target		= ebt_snat_tg,
 	.checkentry	= ebt_snat_tg_check,
 	.targetsize	= XT_ALIGN(sizeof(struct ebt_nat_info)),
-- 
cgit v1.2.3


From 5365f8022e04310f0276c95e82548da917d514db Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:16 +0200
Subject: netfilter: implement hotdrop for Ebtables

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index c4f7a2e8ed3..7964d3f0388 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -78,9 +78,10 @@ static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
 
 static inline int ebt_do_match (struct ebt_entry_match *m,
    const struct sk_buff *skb, const struct net_device *in,
-   const struct net_device *out)
+   const struct net_device *out, bool *hotdrop)
 {
-	return m->u.match->match(skb, in, out, m->u.match, m->data, 0, 0, NULL);
+	return m->u.match->match(skb, in, out, m->u.match,
+	       m->data, 0, 0, hotdrop);
 }
 
 static inline int ebt_dev_check(char *entry, const struct net_device *device)
@@ -156,6 +157,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	struct ebt_entries *chaininfo;
 	char *base;
 	struct ebt_table_info *private;
+	bool hotdrop = false;
 
 	read_lock_bh(&table->lock);
 	private = table->private;
@@ -176,8 +178,13 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 		if (ebt_basic_match(point, eth_hdr(skb), in, out))
 			goto letscontinue;
 
-		if (EBT_MATCH_ITERATE(point, ebt_do_match, skb, in, out) != 0)
+		if (EBT_MATCH_ITERATE(point, ebt_do_match, skb,
+		    in, out, &hotdrop) != 0)
 			goto letscontinue;
+		if (hotdrop) {
+			read_unlock_bh(&table->lock);
+			return NF_DROP;
+		}
 
 		/* increase counter */
 		(*(counter_base + i)).pcnt++;
-- 
cgit v1.2.3


From 66bff35b722956cc2423f55fcf1b69cefa24ef8b Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:16 +0200
Subject: netfilter: remove unused Ebtables functions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 108 ----------------------------------------
 1 file changed, 108 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 7964d3f0388..b489ed262fa 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -56,9 +56,6 @@
 
 static DEFINE_MUTEX(ebt_mutex);
 static LIST_HEAD(ebt_tables);
-static LIST_HEAD(ebt_targets);
-static LIST_HEAD(ebt_matches);
-static LIST_HEAD(ebt_watchers);
 
 static struct xt_target ebt_standard_target = {
 	.name       = "standard",
@@ -322,24 +319,6 @@ find_table_lock(const char *name, int *error, struct mutex *mutex)
 	return find_inlist_lock(&ebt_tables, name, "ebtable_", error, mutex);
 }
 
-static inline struct ebt_match *
-find_match_lock(const char *name, int *error, struct mutex *mutex)
-{
-	return find_inlist_lock(&ebt_matches, name, "ebt_", error, mutex);
-}
-
-static inline struct ebt_watcher *
-find_watcher_lock(const char *name, int *error, struct mutex *mutex)
-{
-	return find_inlist_lock(&ebt_watchers, name, "ebt_", error, mutex);
-}
-
-static inline struct ebt_target *
-find_target_lock(const char *name, int *error, struct mutex *mutex)
-{
-	return find_inlist_lock(&ebt_targets, name, "ebt_", error, mutex);
-}
-
 static inline int
 ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
    const char *name, unsigned int hookmask, unsigned int *cnt)
@@ -1103,87 +1082,6 @@ free_newinfo:
 	return ret;
 }
 
-int ebt_register_target(struct ebt_target *target)
-{
-	struct ebt_target *t;
-	int ret;
-
-	ret = mutex_lock_interruptible(&ebt_mutex);
-	if (ret != 0)
-		return ret;
-	list_for_each_entry(t, &ebt_targets, list) {
-		if (strcmp(t->name, target->name) == 0) {
-			mutex_unlock(&ebt_mutex);
-			return -EEXIST;
-		}
-	}
-	list_add(&target->list, &ebt_targets);
-	mutex_unlock(&ebt_mutex);
-
-	return 0;
-}
-
-void ebt_unregister_target(struct ebt_target *target)
-{
-	mutex_lock(&ebt_mutex);
-	list_del(&target->list);
-	mutex_unlock(&ebt_mutex);
-}
-
-int ebt_register_match(struct ebt_match *match)
-{
-	struct ebt_match *m;
-	int ret;
-
-	ret = mutex_lock_interruptible(&ebt_mutex);
-	if (ret != 0)
-		return ret;
-	list_for_each_entry(m, &ebt_matches, list) {
-		if (strcmp(m->name, match->name) == 0) {
-			mutex_unlock(&ebt_mutex);
-			return -EEXIST;
-		}
-	}
-	list_add(&match->list, &ebt_matches);
-	mutex_unlock(&ebt_mutex);
-
-	return 0;
-}
-
-void ebt_unregister_match(struct ebt_match *match)
-{
-	mutex_lock(&ebt_mutex);
-	list_del(&match->list);
-	mutex_unlock(&ebt_mutex);
-}
-
-int ebt_register_watcher(struct ebt_watcher *watcher)
-{
-	struct ebt_watcher *w;
-	int ret;
-
-	ret = mutex_lock_interruptible(&ebt_mutex);
-	if (ret != 0)
-		return ret;
-	list_for_each_entry(w, &ebt_watchers, list) {
-		if (strcmp(w->name, watcher->name) == 0) {
-			mutex_unlock(&ebt_mutex);
-			return -EEXIST;
-		}
-	}
-	list_add(&watcher->list, &ebt_watchers);
-	mutex_unlock(&ebt_mutex);
-
-	return 0;
-}
-
-void ebt_unregister_watcher(struct ebt_watcher *watcher)
-{
-	mutex_lock(&ebt_mutex);
-	list_del(&watcher->list);
-	mutex_unlock(&ebt_mutex);
-}
-
 int ebt_register_table(struct ebt_table *table)
 {
 	struct ebt_table_info *newinfo;
@@ -1575,12 +1473,6 @@ static void __exit ebtables_fini(void)
 
 EXPORT_SYMBOL(ebt_register_table);
 EXPORT_SYMBOL(ebt_unregister_table);
-EXPORT_SYMBOL(ebt_register_match);
-EXPORT_SYMBOL(ebt_unregister_match);
-EXPORT_SYMBOL(ebt_register_watcher);
-EXPORT_SYMBOL(ebt_unregister_watcher);
-EXPORT_SYMBOL(ebt_register_target);
-EXPORT_SYMBOL(ebt_unregister_target);
 EXPORT_SYMBOL(ebt_do_table);
 module_init(ebtables_init);
 module_exit(ebtables_fini);
-- 
cgit v1.2.3


From f7277f8d3aa4d3f99a9bdb48b27a2344a637a4b2 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:16 +0200
Subject: netfilter: remove redundant casts from Ebtables

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_arpreply.c | 2 +-
 net/bridge/netfilter/ebt_ip6.c      | 4 ++--
 net/bridge/netfilter/ebt_limit.c    | 2 +-
 net/bridge/netfilter/ebt_nflog.c    | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index 0e51c8d7e5f..baf5510d044 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -20,7 +20,7 @@ ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
 		const struct net_device *out, unsigned int hook_nr,
 		const struct xt_target *target, const void *data)
 {
-	struct ebt_arpreply_info *info = (void *)data;
+	const struct ebt_arpreply_info *info = data;
 	const __be32 *siptr, *diptr;
 	__be32 _sip, _dip;
 	const struct arphdr *ap;
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 317e624ae59..7bd98312967 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -32,7 +32,7 @@ ebt_ip6_mt(const struct sk_buff *skb, const struct net_device *in,
 	   const struct net_device *out, const struct xt_match *match,
 	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
-	const struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
+	const struct ebt_ip6_info *info = data;
 	const struct ipv6hdr *ih6;
 	struct ipv6hdr _ip6h;
 	const struct tcpudphdr *pptr;
@@ -98,7 +98,7 @@ ebt_ip6_mt_check(const char *table, const void *entry,
 		 unsigned int hook_mask)
 {
 	const struct ebt_entry *e = entry;
-	struct ebt_ip6_info *info = (struct ebt_ip6_info *)data;
+	struct ebt_ip6_info *info = data;
 
 	if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
 		return false;
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 43d9a500363..58aaaa14906 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -35,7 +35,7 @@ ebt_limit_mt(const struct sk_buff *skb, const struct net_device *in,
 	     const struct net_device *out, const struct xt_match *match,
 	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
 {
-	struct ebt_limit_info *info = (struct ebt_limit_info *)data;
+	struct ebt_limit_info *info = (void *)data;
 	unsigned long now = jiffies;
 
 	spin_lock_bh(&limit_lock);
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 917ac360079..74b4fa0aabc 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -24,7 +24,7 @@ ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
 	     const struct net_device *out, unsigned int hooknr,
 	     const struct xt_target *target, const void *data)
 {
-	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
+	const struct ebt_nflog_info *info = data;
 	struct nf_loginfo li;
 
 	li.type = NF_LOG_TYPE_ULOG;
@@ -41,7 +41,7 @@ ebt_nflog_tg_check(const char *table, const void *e,
 		   const struct xt_target *target, void *data,
 		   unsigned int hookmask)
 {
-	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
+	struct ebt_nflog_info *info = data;
 
 	if (info->flags & ~EBT_NFLOG_MASK)
 		return false;
-- 
cgit v1.2.3


From 147c3844ad381b58715a6ee2ea697594e3c06284 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:16 +0200
Subject: netfilter: ebtables: fix one wrong return value

Usually -EINVAL is used when checkentry fails (see *_tables).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index b489ed262fa..7d8ead52d25 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -699,7 +699,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	} else if (t->u.target->checkentry &&
 	    !t->u.target->checkentry(name, e, NULL, t->data, hookmask)) {
 		module_put(t->u.target->me);
-		ret = -EFAULT;
+		ret = -EINVAL;
 		goto cleanup_watchers;
 	}
 	(*cnt)++;
-- 
cgit v1.2.3


From 367c679007fa4f990eb7ee381326ec59d8148b0e Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:17 +0200
Subject: netfilter: xtables: do centralized checkentry call (1/2)

It used to be that {ip,ip6,etc}_tables called extension->checkentry
themselves, but this can be moved into the xtables core.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 7d8ead52d25..7ee72b71d3c 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -340,15 +340,11 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 	m->u.match = match;
 
 	ret = xt_check_match(match, NFPROTO_BRIDGE, m->match_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
+	      e, m->data);
 	if (ret < 0) {
 		module_put(match->me);
 		return ret;
-	} else if (match->checkentry != NULL &&
-	    !match->checkentry(name, e, NULL, m->data, hookmask)) {
-		module_put(match->me);
-		BUGPRINT("match->check failed\n");
-		return -EINVAL;
 	}
 
 	(*cnt)++;
@@ -377,15 +373,11 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 	w->u.watcher = watcher;
 
 	ret = xt_check_target(watcher, NFPROTO_BRIDGE, w->watcher_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
+	      e, w->data);
 	if (ret < 0) {
 		module_put(watcher->me);
 		return ret;
-	} else if (watcher->checkentry != NULL &&
-	    !watcher->checkentry(name, e, NULL, w->data, hookmask)) {
-		module_put(watcher->me);
-		BUGPRINT("watcher->check failed\n");
-		return -EINVAL;
 	}
 
 	(*cnt)++;
@@ -692,15 +684,11 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	}
 
 	ret = xt_check_target(target, NFPROTO_BRIDGE, t->target_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO);
+	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
+	      e, t->data);
 	if (ret < 0) {
 		module_put(target->me);
 		goto cleanup_watchers;
-	} else if (t->u.target->checkentry &&
-	    !t->u.target->checkentry(name, e, NULL, t->data, hookmask)) {
-		module_put(t->u.target->me);
-		ret = -EINVAL;
-		goto cleanup_watchers;
 	}
 	(*cnt)++;
 	return 0;
-- 
cgit v1.2.3


From 20f3c56f4d7c76bcb66050f3364aa8da110f5bbd Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:17 +0200
Subject: netfilter: ebtables: make BRIDGE_NF_EBTABLES a menuconfig option

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/Kconfig | 29 +++++------------------------
 1 file changed, 5 insertions(+), 24 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index e7c197ffb2f..366d3e9d51f 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -2,22 +2,21 @@
 # Bridge netfilter configuration
 #
 
-menu "Bridge: Netfilter Configuration"
-	depends on BRIDGE && BRIDGE_NETFILTER
-
-config BRIDGE_NF_EBTABLES
+menuconfig BRIDGE_NF_EBTABLES
 	tristate "Ethernet Bridge tables (ebtables) support"
 	select NETFILTER_XTABLES
 	help
 	  ebtables is a general, extensible frame/packet identification
 	  framework. Say 'Y' or 'M' here if you want to do Ethernet
 	  filtering/NAT/brouting on the Ethernet bridge.
+
+if BRIDGE_NF_EBTABLES
+
 #
 # tables
 #
 config BRIDGE_EBT_BROUTE
 	tristate "ebt: broute table support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  The ebtables broute table is used to define rules that decide between
 	  bridging and routing frames, giving Linux the functionality of a
@@ -28,7 +27,6 @@ config BRIDGE_EBT_BROUTE
 
 config BRIDGE_EBT_T_FILTER
 	tristate "ebt: filter table support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  The ebtables filter table is used to define frame filtering rules at
 	  local input, forwarding and local output. See the man page for
@@ -38,7 +36,6 @@ config BRIDGE_EBT_T_FILTER
 
 config BRIDGE_EBT_T_NAT
 	tristate "ebt: nat table support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  The ebtables nat table is used to define rules that alter the MAC
 	  source address (MAC SNAT) or the MAC destination address (MAC DNAT).
@@ -50,7 +47,6 @@ config BRIDGE_EBT_T_NAT
 #
 config BRIDGE_EBT_802_3
 	tristate "ebt: 802.3 filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds matching support for 802.3 Ethernet frames.
 
@@ -58,7 +54,6 @@ config BRIDGE_EBT_802_3
 
 config BRIDGE_EBT_AMONG
 	tristate "ebt: among filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the among match, which allows matching the MAC source
 	  and/or destination address on a list of addresses. Optionally,
@@ -68,7 +63,6 @@ config BRIDGE_EBT_AMONG
 
 config BRIDGE_EBT_ARP
 	tristate "ebt: ARP filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the ARP match, which allows ARP and RARP header field
 	  filtering.
@@ -77,7 +71,6 @@ config BRIDGE_EBT_ARP
 
 config BRIDGE_EBT_IP
 	tristate "ebt: IP filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the IP match, which allows basic IP header field
 	  filtering.
@@ -95,7 +88,6 @@ config BRIDGE_EBT_IP6
 
 config BRIDGE_EBT_LIMIT
 	tristate "ebt: limit match support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the limit match, which allows you to control
 	  the rate at which a rule can be matched. This match is the
@@ -106,7 +98,6 @@ config BRIDGE_EBT_LIMIT
 
 config BRIDGE_EBT_MARK
 	tristate "ebt: mark filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the mark match, which allows matching frames based on
 	  the 'nfmark' value in the frame. This can be set by the mark target.
@@ -117,7 +108,6 @@ config BRIDGE_EBT_MARK
 
 config BRIDGE_EBT_PKTTYPE
 	tristate "ebt: packet type filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the packet type match, which allows matching on the
 	  type of packet based on its Ethernet "class" (as determined by
@@ -128,7 +118,6 @@ config BRIDGE_EBT_PKTTYPE
 
 config BRIDGE_EBT_STP
 	tristate "ebt: STP filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the Spanning Tree Protocol match, which
 	  allows STP header field filtering.
@@ -137,7 +126,6 @@ config BRIDGE_EBT_STP
 
 config BRIDGE_EBT_VLAN
 	tristate "ebt: 802.1Q VLAN filter support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the 802.1Q vlan match, which allows the filtering of
 	  802.1Q vlan fields.
@@ -157,7 +145,6 @@ config BRIDGE_EBT_ARPREPLY
 
 config BRIDGE_EBT_DNAT
 	tristate "ebt: dnat target support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the MAC DNAT target, which allows altering the MAC
 	  destination address of frames.
@@ -166,7 +153,6 @@ config BRIDGE_EBT_DNAT
 
 config BRIDGE_EBT_MARK_T
 	tristate "ebt: mark target support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the mark target, which allows marking frames by
 	  setting the 'nfmark' value in the frame.
@@ -177,7 +163,6 @@ config BRIDGE_EBT_MARK_T
 
 config BRIDGE_EBT_REDIRECT
 	tristate "ebt: redirect target support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the MAC redirect target, which allows altering the MAC
 	  destination address of a frame to that of the device it arrived on.
@@ -186,7 +171,6 @@ config BRIDGE_EBT_REDIRECT
 
 config BRIDGE_EBT_SNAT
 	tristate "ebt: snat target support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the MAC SNAT target, which allows altering the MAC
 	  source address of frames.
@@ -197,7 +181,6 @@ config BRIDGE_EBT_SNAT
 #
 config BRIDGE_EBT_LOG
 	tristate "ebt: log support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option adds the log watcher, that you can use in any rule
 	  in any ebtables table. It records info about the frame header
@@ -207,7 +190,6 @@ config BRIDGE_EBT_LOG
 
 config BRIDGE_EBT_ULOG
 	tristate "ebt: ulog support (OBSOLETE)"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option enables the old bridge-specific "ebt_ulog" implementation
 	  which has been obsoleted by the new "nfnetlink_log" code (see
@@ -224,7 +206,6 @@ config BRIDGE_EBT_ULOG
 
 config BRIDGE_EBT_NFLOG
 	tristate "ebt: nflog support"
-	depends on BRIDGE_NF_EBTABLES
 	help
 	  This option enables the nflog watcher, which allows to LOG
 	  messages through the netfilter logging API, which can use
@@ -236,4 +217,4 @@ config BRIDGE_EBT_NFLOG
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-endmenu
+endif # BRIDGE_NF_EBTABLES
-- 
cgit v1.2.3


From f7108a20dee44e5bb037f9e48f6a207b42e6ae1c Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:18 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (1/6)

The function signatures for Xtables extensions have grown over time.
It involves a lot of typing/replication, and also a bit of stack space
even if they are not used. Realize an NFWS2008 idea and pack them into
structs. The skb remains outside of the struct so gcc can continue to
apply its optimizations.

This patch does this for match extensions' match functions.

A few ambiguities have also been addressed. The "offset" parameter for
example has been renamed to "fragoff" (there are so many different
offsets already) and "protoff" to "thoff" (there is more than just one
protocol here, so clarify).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c   |  6 ++----
 net/bridge/netfilter/ebt_among.c   |  6 ++----
 net/bridge/netfilter/ebt_arp.c     |  6 ++----
 net/bridge/netfilter/ebt_ip.c      |  6 ++----
 net/bridge/netfilter/ebt_ip6.c     |  6 ++----
 net/bridge/netfilter/ebt_limit.c   |  6 ++----
 net/bridge/netfilter/ebt_mark_m.c  |  6 ++----
 net/bridge/netfilter/ebt_pkttype.c |  7 ++-----
 net/bridge/netfilter/ebt_stp.c     |  6 ++----
 net/bridge/netfilter/ebt_vlan.c    |  6 ++----
 net/bridge/netfilter/ebtables.c    | 16 ++++++++++------
 11 files changed, 30 insertions(+), 47 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index 6fc2a59e09a..c9e1bc14951 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -13,11 +13,9 @@
 #include <linux/netfilter_bridge/ebt_802_3.h>
 
 static bool
-ebt_802_3_mt(const struct sk_buff *skb, const struct net_device *in,
-	     const struct net_device *out, const struct xt_match *match,
-	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_802_3_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_802_3_info *info = data;
+	const struct ebt_802_3_info *info = par->matchinfo;
 	const struct ebt_802_3_hdr *hdr = ebt_802_3_hdr(skb);
 	__be16 type = hdr->llc.ui.ctrl & IS_UI ? hdr->llc.ui.type : hdr->llc.ni.type;
 
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 084559e1840..0ad0db3e815 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -128,11 +128,9 @@ static int get_ip_src(const struct sk_buff *skb, __be32 *addr)
 }
 
 static bool
-ebt_among_mt(const struct sk_buff *skb, const struct net_device *in,
-	     const struct net_device *out, const struct xt_match *match,
-	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_among_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_among_info *info = data;
+	const struct ebt_among_info *info = par->matchinfo;
 	const char *dmac, *smac;
 	const struct ebt_mac_wormhash *wh_dst, *wh_src;
 	__be32 dip = 0, sip = 0;
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index a073dffe7a1..1ff8fa3a9e7 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -16,11 +16,9 @@
 #include <linux/netfilter_bridge/ebt_arp.h>
 
 static bool
-ebt_arp_mt(const struct sk_buff *skb, const struct net_device *in,
-	   const struct net_device *out, const struct xt_match *match,
-	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_arp_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_arp_info *info = data;
+	const struct ebt_arp_info *info = par->matchinfo;
 	const struct arphdr *ah;
 	struct arphdr _arph;
 
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index b42c7ce799b..c70ea39840b 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -25,11 +25,9 @@ struct tcpudphdr {
 };
 
 static bool
-ebt_ip_mt(const struct sk_buff *skb, const struct net_device *in,
-	  const struct net_device *out, const struct xt_match *match,
-	  const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_ip_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_ip_info *info = data;
+	const struct ebt_ip_info *info = par->matchinfo;
 	const struct iphdr *ih;
 	struct iphdr _iph;
 	const struct tcpudphdr *pptr;
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 7bd98312967..5acee02de72 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -28,11 +28,9 @@ struct tcpudphdr {
 };
 
 static bool
-ebt_ip6_mt(const struct sk_buff *skb, const struct net_device *in,
-	   const struct net_device *out, const struct xt_match *match,
-	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_ip6_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_ip6_info *info = data;
+	const struct ebt_ip6_info *info = par->matchinfo;
 	const struct ipv6hdr *ih6;
 	struct ipv6hdr _ip6h;
 	const struct tcpudphdr *pptr;
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 58aaaa14906..9a3ec8cadaa 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -31,11 +31,9 @@ static DEFINE_SPINLOCK(limit_lock);
 #define CREDITS_PER_JIFFY POW2_BELOW32(MAX_CPJ)
 
 static bool
-ebt_limit_mt(const struct sk_buff *skb, const struct net_device *in,
-	     const struct net_device *out, const struct xt_match *match,
-	     const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_limit_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	struct ebt_limit_info *info = (void *)data;
+	struct ebt_limit_info *info = (void *)par->matchinfo;
 	unsigned long now = jiffies;
 
 	spin_lock_bh(&limit_lock);
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index aa6781c7f98..5b22ef96127 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -13,11 +13,9 @@
 #include <linux/netfilter_bridge/ebt_mark_m.h>
 
 static bool
-ebt_mark_mt(const struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, const struct xt_match *match,
-	    const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_mark_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_mark_m_info *info = data;
+	const struct ebt_mark_m_info *info = par->matchinfo;
 
 	if (info->bitmask & EBT_MARK_OR)
 		return !!(skb->mark & info->mask) ^ info->invert;
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index 1c04ce5a52c..b756f88fb10 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -13,12 +13,9 @@
 #include <linux/netfilter_bridge/ebt_pkttype.h>
 
 static bool
-ebt_pkttype_mt(const struct sk_buff *skb, const struct net_device *in,
-	       const struct net_device *out, const struct xt_match *match,
-	       const void *data, int offset, unsigned int protoff,
-	       bool *hotdrop)
+ebt_pkttype_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_pkttype_info *info = data;
+	const struct ebt_pkttype_info *info = par->matchinfo;
 
 	return (skb->pkt_type == info->pkt_type) ^ info->invert;
 }
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 28bb48b67a8..06d777c62c3 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -120,11 +120,9 @@ static bool ebt_filter_config(const struct ebt_stp_info *info,
 }
 
 static bool
-ebt_stp_mt(const struct sk_buff *skb, const struct net_device *in,
-	   const struct net_device *out, const struct xt_match *match,
-	   const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_stp_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_stp_info *info = data;
+	const struct ebt_stp_info *info = par->matchinfo;
 	const struct stp_header *sp;
 	struct stp_header _stph;
 	const uint8_t header[6] = {0x42, 0x42, 0x03, 0x00, 0x00, 0x00};
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index 5addef6d62f..b05b4a81834 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -41,11 +41,9 @@ MODULE_LICENSE("GPL");
 #define EXIT_ON_MISMATCH(_MATCH_,_MASK_) {if (!((info->_MATCH_ == _MATCH_)^!!(info->invflags & _MASK_))) return false; }
 
 static bool
-ebt_vlan_mt(const struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, const struct xt_match *match,
-	    const void *data, int offset, unsigned int protoff, bool *hotdrop)
+ebt_vlan_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 {
-	const struct ebt_vlan_info *info = data;
+	const struct ebt_vlan_info *info = par->matchinfo;
 	const struct vlan_hdr *fp;
 	struct vlan_hdr _frame;
 
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 7ee72b71d3c..f8e1822f38d 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -74,11 +74,11 @@ static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
 }
 
 static inline int ebt_do_match (struct ebt_entry_match *m,
-   const struct sk_buff *skb, const struct net_device *in,
-   const struct net_device *out, bool *hotdrop)
+   const struct sk_buff *skb, struct xt_match_param *par)
 {
-	return m->u.match->match(skb, in, out, m->u.match,
-	       m->data, 0, 0, hotdrop);
+	par->match     = m->u.match;
+	par->matchinfo = m->data;
+	return m->u.match->match(skb, par);
 }
 
 static inline int ebt_dev_check(char *entry, const struct net_device *device)
@@ -155,6 +155,11 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	char *base;
 	struct ebt_table_info *private;
 	bool hotdrop = false;
+	struct xt_match_param mtpar;
+
+	mtpar.in      = in;
+	mtpar.out     = out;
+	mtpar.hotdrop = &hotdrop;
 
 	read_lock_bh(&table->lock);
 	private = table->private;
@@ -175,8 +180,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 		if (ebt_basic_match(point, eth_hdr(skb), in, out))
 			goto letscontinue;
 
-		if (EBT_MATCH_ITERATE(point, ebt_do_match, skb,
-		    in, out, &hotdrop) != 0)
+		if (EBT_MATCH_ITERATE(point, ebt_do_match, skb, &mtpar) != 0)
 			goto letscontinue;
 		if (hotdrop) {
 			read_unlock_bh(&table->lock);
-- 
cgit v1.2.3


From 9b4fce7a3508a9776534188b6065b206a9608ccf Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:18 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (2/6)

This patch does this for match extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_802_3.c   |  7 ++-----
 net/bridge/netfilter/ebt_among.c   |  9 +++------
 net/bridge/netfilter/ebt_arp.c     |  9 +++------
 net/bridge/netfilter/ebt_ip.c      |  9 +++------
 net/bridge/netfilter/ebt_ip6.c     |  9 +++------
 net/bridge/netfilter/ebt_limit.c   |  7 ++-----
 net/bridge/netfilter/ebt_mark_m.c  |  7 ++-----
 net/bridge/netfilter/ebt_pkttype.c |  7 ++-----
 net/bridge/netfilter/ebt_stp.c     |  9 +++------
 net/bridge/netfilter/ebt_vlan.c    |  9 +++------
 net/bridge/netfilter/ebtables.c    | 19 +++++++++++++------
 11 files changed, 39 insertions(+), 62 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_802_3.c b/net/bridge/netfilter/ebt_802_3.c
index c9e1bc14951..bd91dc58d49 100644
--- a/net/bridge/netfilter/ebt_802_3.c
+++ b/net/bridge/netfilter/ebt_802_3.c
@@ -36,12 +36,9 @@ ebt_802_3_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_802_3_mt_check(const char *table, const void *entry,
-		   const struct xt_match *match, void *data,
-		   unsigned int hook_mask)
+static bool ebt_802_3_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_802_3_info *info = data;
+	const struct ebt_802_3_info *info = par->matchinfo;
 
 	if (info->bitmask & ~EBT_802_3_MASK || info->invflags & ~EBT_802_3_MASK)
 		return false;
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 0ad0db3e815..b595f091f35 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -171,14 +171,11 @@ ebt_among_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_among_mt_check(const char *table, const void *entry,
-		   const struct xt_match *match, void *data,
-		   unsigned int hook_mask)
+static bool ebt_among_mt_check(const struct xt_mtchk_param *par)
 {
+	const struct ebt_among_info *info = par->matchinfo;
 	const struct ebt_entry_match *em =
-		container_of(data, const struct ebt_entry_match, data);
-	const struct ebt_among_info *info = data;
+		container_of(par->matchinfo, const struct ebt_entry_match, data);
 	int expected_length = sizeof(struct ebt_among_info);
 	const struct ebt_mac_wormhash *wh_dst, *wh_src;
 	int err;
diff --git a/net/bridge/netfilter/ebt_arp.c b/net/bridge/netfilter/ebt_arp.c
index 1ff8fa3a9e7..b7ad60419f9 100644
--- a/net/bridge/netfilter/ebt_arp.c
+++ b/net/bridge/netfilter/ebt_arp.c
@@ -100,13 +100,10 @@ ebt_arp_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_arp_mt_check(const char *table, const void *entry,
-		 const struct xt_match *match, void *data,
-		 unsigned int hook_mask)
+static bool ebt_arp_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_arp_info *info = data;
-	const struct ebt_entry *e = entry;
+	const struct ebt_arp_info *info = par->matchinfo;
+	const struct ebt_entry *e = par->entryinfo;
 
 	if ((e->ethproto != htons(ETH_P_ARP) &&
 	   e->ethproto != htons(ETH_P_RARP)) ||
diff --git a/net/bridge/netfilter/ebt_ip.c b/net/bridge/netfilter/ebt_ip.c
index c70ea39840b..d771bbfbcbe 100644
--- a/net/bridge/netfilter/ebt_ip.c
+++ b/net/bridge/netfilter/ebt_ip.c
@@ -77,13 +77,10 @@ ebt_ip_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_ip_mt_check(const char *table, const void *entry,
-		const struct xt_match *match, void *data,
-		unsigned int hook_mask)
+static bool ebt_ip_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_ip_info *info = data;
-	const struct ebt_entry *e = entry;
+	const struct ebt_ip_info *info = par->matchinfo;
+	const struct ebt_entry *e = par->entryinfo;
 
 	if (e->ethproto != htons(ETH_P_IP) ||
 	   e->invflags & EBT_IPROTO)
diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 5acee02de72..784a6573876 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -90,13 +90,10 @@ ebt_ip6_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_ip6_mt_check(const char *table, const void *entry,
-		 const struct xt_match *match, void *data,
-		 unsigned int hook_mask)
+static bool ebt_ip6_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_entry *e = entry;
-	struct ebt_ip6_info *info = data;
+	const struct ebt_entry *e = par->entryinfo;
+	struct ebt_ip6_info *info = par->matchinfo;
 
 	if (e->ethproto != htons(ETH_P_IPV6) || e->invflags & EBT_IPROTO)
 		return false;
diff --git a/net/bridge/netfilter/ebt_limit.c b/net/bridge/netfilter/ebt_limit.c
index 9a3ec8cadaa..f7bd9192ff0 100644
--- a/net/bridge/netfilter/ebt_limit.c
+++ b/net/bridge/netfilter/ebt_limit.c
@@ -64,12 +64,9 @@ user2credits(u_int32_t user)
 	return (user * HZ * CREDITS_PER_JIFFY) / EBT_LIMIT_SCALE;
 }
 
-static bool
-ebt_limit_mt_check(const char *table, const void *e,
-		   const struct xt_match *match, void *data,
-		   unsigned int hook_mask)
+static bool ebt_limit_mt_check(const struct xt_mtchk_param *par)
 {
-	struct ebt_limit_info *info = data;
+	struct ebt_limit_info *info = par->matchinfo;
 
 	/* Check for overflow. */
 	if (info->burst == 0 ||
diff --git a/net/bridge/netfilter/ebt_mark_m.c b/net/bridge/netfilter/ebt_mark_m.c
index 5b22ef96127..ea570f214b1 100644
--- a/net/bridge/netfilter/ebt_mark_m.c
+++ b/net/bridge/netfilter/ebt_mark_m.c
@@ -22,12 +22,9 @@ ebt_mark_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
 }
 
-static bool
-ebt_mark_mt_check(const char *table, const void *e,
-		  const struct xt_match *match, void *data,
-		  unsigned int hook_mask)
+static bool ebt_mark_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_mark_m_info *info = data;
+	const struct ebt_mark_m_info *info = par->matchinfo;
 
 	if (info->bitmask & ~EBT_MARK_MASK)
 		return false;
diff --git a/net/bridge/netfilter/ebt_pkttype.c b/net/bridge/netfilter/ebt_pkttype.c
index b756f88fb10..883e96e2a54 100644
--- a/net/bridge/netfilter/ebt_pkttype.c
+++ b/net/bridge/netfilter/ebt_pkttype.c
@@ -20,12 +20,9 @@ ebt_pkttype_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return (skb->pkt_type == info->pkt_type) ^ info->invert;
 }
 
-static bool
-ebt_pkttype_mt_check(const char *table, const void *e,
-		     const struct xt_match *match, void *data,
-		     unsigned int hook_mask)
+static bool ebt_pkttype_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_pkttype_info *info = data;
+	const struct ebt_pkttype_info *info = par->matchinfo;
 
 	if (info->invert != 0 && info->invert != 1)
 		return false;
diff --git a/net/bridge/netfilter/ebt_stp.c b/net/bridge/netfilter/ebt_stp.c
index 06d777c62c3..48527e62162 100644
--- a/net/bridge/netfilter/ebt_stp.c
+++ b/net/bridge/netfilter/ebt_stp.c
@@ -153,15 +153,12 @@ ebt_stp_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_stp_mt_check(const char *table, const void *entry,
-		 const struct xt_match *match, void *data,
-		 unsigned int hook_mask)
+static bool ebt_stp_mt_check(const struct xt_mtchk_param *par)
 {
-	const struct ebt_stp_info *info = data;
+	const struct ebt_stp_info *info = par->matchinfo;
 	const uint8_t bridge_ula[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
 	const uint8_t msk[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-	const struct ebt_entry *e = entry;
+	const struct ebt_entry *e = par->entryinfo;
 
 	if (info->bitmask & ~EBT_STP_MASK || info->invflags & ~EBT_STP_MASK ||
 	    !(info->bitmask & EBT_STP_MASK))
diff --git a/net/bridge/netfilter/ebt_vlan.c b/net/bridge/netfilter/ebt_vlan.c
index b05b4a81834..3dddd489328 100644
--- a/net/bridge/netfilter/ebt_vlan.c
+++ b/net/bridge/netfilter/ebt_vlan.c
@@ -84,13 +84,10 @@ ebt_vlan_mt(const struct sk_buff *skb, const struct xt_match_param *par)
 	return true;
 }
 
-static bool
-ebt_vlan_mt_check(const char *table, const void *entry,
-		  const struct xt_match *match, void *data,
-		  unsigned int hook_mask)
+static bool ebt_vlan_mt_check(const struct xt_mtchk_param *par)
 {
-	struct ebt_vlan_info *info = data;
-	const struct ebt_entry *e = entry;
+	struct ebt_vlan_info *info = par->matchinfo;
+	const struct ebt_entry *e = par->entryinfo;
 
 	/* Is it 802.1Q frame checked? */
 	if (e->ethproto != htons(ETH_P_8021Q)) {
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index f8e1822f38d..5ce37b2f5b8 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -324,9 +324,10 @@ find_table_lock(const char *name, int *error, struct mutex *mutex)
 }
 
 static inline int
-ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
-   const char *name, unsigned int hookmask, unsigned int *cnt)
+ebt_check_match(struct ebt_entry_match *m, struct xt_mtchk_param *par,
+		unsigned int *cnt)
 {
+	const struct ebt_entry *e = par->entryinfo;
 	struct xt_match *match;
 	size_t left = ((char *)e + e->watchers_offset) - (char *)m;
 	int ret;
@@ -343,9 +344,10 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
 		return -ENOENT;
 	m->u.match = match;
 
-	ret = xt_check_match(match, NFPROTO_BRIDGE, m->match_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
-	      e, m->data);
+	par->match     = match;
+	par->matchinfo = m->data;
+	ret = xt_check_match(par, NFPROTO_BRIDGE, m->match_size,
+	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(match->me);
 		return ret;
@@ -607,6 +609,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	unsigned int i, j, hook = 0, hookmask = 0;
 	size_t gap;
 	int ret;
+	struct xt_mtchk_param par;
 
 	/* don't mess with the struct ebt_entries */
 	if (e->bitmask == 0)
@@ -647,7 +650,11 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 			hookmask = cl_s[i - 1].hookmask;
 	}
 	i = 0;
-	ret = EBT_MATCH_ITERATE(e, ebt_check_match, e, name, hookmask, &i);
+
+	par.table     = name;
+	par.entryinfo = e;
+	par.hook_mask = hookmask;
+	ret = EBT_MATCH_ITERATE(e, ebt_check_match, &par, &i);
 	if (ret != 0)
 		goto cleanup_matches;
 	j = 0;
-- 
cgit v1.2.3


From 6be3d8598e883fb632edf059ba2f8d1b9f4da138 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:19 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (3/6)

This patch does this for match extensions' destroy functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 5ce37b2f5b8..0320b520362 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -558,12 +558,16 @@ ebt_get_udc_positions(struct ebt_entry *e, struct ebt_table_info *newinfo,
 static inline int
 ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
 {
+	struct xt_mtdtor_param par;
+
 	if (i && (*i)-- == 0)
 		return 1;
-	if (m->u.match->destroy)
-		m->u.match->destroy(m->u.match, m->data);
-	module_put(m->u.match->me);
 
+	par.match     = m->u.match;
+	par.matchinfo = m->data;
+	if (par.match->destroy != NULL)
+		par.match->destroy(&par);
+	module_put(par.match->me);
 	return 0;
 }
 
@@ -609,7 +613,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	unsigned int i, j, hook = 0, hookmask = 0;
 	size_t gap;
 	int ret;
-	struct xt_mtchk_param par;
+	struct xt_mtchk_param mtpar;
 
 	/* don't mess with the struct ebt_entries */
 	if (e->bitmask == 0)
@@ -651,10 +655,10 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	}
 	i = 0;
 
-	par.table     = name;
-	par.entryinfo = e;
-	par.hook_mask = hookmask;
-	ret = EBT_MATCH_ITERATE(e, ebt_check_match, &par, &i);
+	mtpar.table     = name;
+	mtpar.entryinfo = e;
+	mtpar.hook_mask = hookmask;
+	ret = EBT_MATCH_ITERATE(e, ebt_check_match, &mtpar, &i);
 	if (ret != 0)
 		goto cleanup_matches;
 	j = 0;
-- 
cgit v1.2.3


From 7eb3558655aaa87a3e71a0c065dfaddda521fa6d Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:19 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (4/6)

This patch does this for target extensions' target functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_arpreply.c |  8 +++-----
 net/bridge/netfilter/ebt_dnat.c     |  6 ++----
 net/bridge/netfilter/ebt_log.c      | 14 ++++++--------
 net/bridge/netfilter/ebt_mark.c     |  6 ++----
 net/bridge/netfilter/ebt_nflog.c    |  9 ++++-----
 net/bridge/netfilter/ebt_redirect.c | 12 +++++-------
 net/bridge/netfilter/ebt_snat.c     |  6 ++----
 net/bridge/netfilter/ebt_ulog.c     |  9 +++------
 net/bridge/netfilter/ebtables.c     | 27 ++++++++++++++++-----------
 9 files changed, 43 insertions(+), 54 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index baf5510d044..fc94699f719 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -16,11 +16,9 @@
 #include <linux/netfilter_bridge/ebt_arpreply.h>
 
 static unsigned int
-ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
-		const struct net_device *out, unsigned int hook_nr,
-		const struct xt_target *target, const void *data)
+ebt_arpreply_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_arpreply_info *info = data;
+	const struct ebt_arpreply_info *info = par->targinfo;
 	const __be32 *siptr, *diptr;
 	__be32 _sip, _dip;
 	const struct arphdr *ap;
@@ -53,7 +51,7 @@ ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
 	if (diptr == NULL)
 		return EBT_DROP;
 
-	arp_send(ARPOP_REPLY, ETH_P_ARP, *siptr, (struct net_device *)in,
+	arp_send(ARPOP_REPLY, ETH_P_ARP, *siptr, (struct net_device *)par->in,
 		 *diptr, shp, info->mac, shp);
 
 	return info->target;
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index cb80101e412..bb5d79e0bee 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -15,11 +15,9 @@
 #include <linux/netfilter_bridge/ebt_nat.h>
 
 static unsigned int
-ebt_dnat_tg(struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, unsigned int hook_nr,
-	    const struct xt_target *target, const void *data)
+ebt_dnat_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_nat_info *info = data;
+	const struct ebt_nat_info *info = par->targinfo;
 
 	if (!skb_make_writable(skb, 0))
 		return EBT_DROP;
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index b40f9ed4c34..87de5fccb2f 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -195,11 +195,9 @@ out:
 }
 
 static unsigned int
-ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
-	   const struct net_device *out, unsigned int hooknr,
-	   const struct xt_target *target, const void *data)
+ebt_log_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_log_info *info = data;
+	const struct ebt_log_info *info = par->targinfo;
 	struct nf_loginfo li;
 
 	li.type = NF_LOG_TYPE_LOG;
@@ -207,11 +205,11 @@ ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
 	li.u.log.logflags = info->bitmask;
 
 	if (info->bitmask & EBT_LOG_NFLOG)
-		nf_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
-			      "%s", info->prefix);
+		nf_log_packet(NFPROTO_BRIDGE, par->hooknum, skb, par->in,
+		              par->out, &li, "%s", info->prefix);
 	else
-		ebt_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
-			       info->prefix);
+		ebt_log_packet(NFPROTO_BRIDGE, par->hooknum, skb, par->in,
+		               par->out, &li, info->prefix);
 	return EBT_CONTINUE;
 }
 
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index dff19fc91cf..aafc456c3c3 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -19,11 +19,9 @@
 #include <linux/netfilter_bridge/ebt_mark_t.h>
 
 static unsigned int
-ebt_mark_tg(struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, unsigned int hook_nr,
-	    const struct xt_target *target, const void *data)
+ebt_mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_mark_t_info *info = data;
+	const struct ebt_mark_t_info *info = par->targinfo;
 	int action = info->target & -16;
 
 	if (action == MARK_SET_VALUE)
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 74b4fa0aabc..6a28d994cf7 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -20,11 +20,9 @@
 #include <net/netfilter/nf_log.h>
 
 static unsigned int
-ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
-	     const struct net_device *out, unsigned int hooknr,
-	     const struct xt_target *target, const void *data)
+ebt_nflog_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_nflog_info *info = data;
+	const struct ebt_nflog_info *info = par->targinfo;
 	struct nf_loginfo li;
 
 	li.type = NF_LOG_TYPE_ULOG;
@@ -32,7 +30,8 @@ ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
 	li.u.ulog.group = info->group;
 	li.u.ulog.qthreshold = info->threshold;
 
-	nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li, "%s", info->prefix);
+	nf_log_packet(PF_BRIDGE, par->hooknum, skb, par->in, par->out,
+	              &li, "%s", info->prefix);
 	return EBT_CONTINUE;
 }
 
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index a50ffbe0e4f..0cfe2fad940 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -16,20 +16,18 @@
 #include <linux/netfilter_bridge/ebt_redirect.h>
 
 static unsigned int
-ebt_redirect_tg(struct sk_buff *skb, const struct net_device *in,
-		const struct net_device *out, unsigned int hooknr,
-		const struct xt_target *target, const void *data)
+ebt_redirect_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_redirect_info *info = data;
+	const struct ebt_redirect_info *info = par->targinfo;
 
 	if (!skb_make_writable(skb, 0))
 		return EBT_DROP;
 
-	if (hooknr != NF_BR_BROUTING)
+	if (par->hooknum != NF_BR_BROUTING)
 		memcpy(eth_hdr(skb)->h_dest,
-		       in->br_port->br->dev->dev_addr, ETH_ALEN);
+		       par->in->br_port->br->dev->dev_addr, ETH_ALEN);
 	else
-		memcpy(eth_hdr(skb)->h_dest, in->dev_addr, ETH_ALEN);
+		memcpy(eth_hdr(skb)->h_dest, par->in->dev_addr, ETH_ALEN);
 	skb->pkt_type = PACKET_HOST;
 	return info->target;
 }
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index 8a55c7d49b5..f55960eee99 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -17,11 +17,9 @@
 #include <linux/netfilter_bridge/ebt_nat.h>
 
 static unsigned int
-ebt_snat_tg(struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, unsigned int hook_nr,
-	    const struct xt_target *target, const void *data)
+ebt_snat_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_nat_info *info = data;
+	const struct ebt_nat_info *info = par->targinfo;
 
 	if (!skb_make_writable(skb, 0))
 		return EBT_DROP;
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 25ca6467349..bfedf12cbf4 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -247,13 +247,10 @@ static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
 }
 
 static unsigned int
-ebt_ulog_tg(struct sk_buff *skb, const struct net_device *in,
-	    const struct net_device *out, unsigned int hooknr,
-	    const struct xt_target *target, const void *data)
+ebt_ulog_tg(struct sk_buff *skb, const struct xt_target_param *par)
 {
-	const struct ebt_ulog_info *uloginfo = data;
-
-	ebt_ulog_packet(hooknr, skb, in, out, uloginfo, NULL);
+	ebt_ulog_packet(par->hooknum, skb, par->in, par->out,
+	                par->targinfo, NULL);
 	return EBT_CONTINUE;
 }
 
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 0320b520362..a1156bab4a0 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -64,11 +64,13 @@ static struct xt_target ebt_standard_target = {
 	.targetsize = sizeof(int),
 };
 
-static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
-   struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
-   const struct net_device *out)
+static inline int
+ebt_do_watcher(const struct ebt_entry_watcher *w, struct sk_buff *skb,
+	       struct xt_target_param *par)
 {
-	w->u.watcher->target(skb, in, out, hooknr, w->u.watcher, w->data);
+	par->target   = w->u.watcher;
+	par->targinfo = w->data;
+	w->u.watcher->target(skb, par);
 	/* watchers don't give a verdict */
 	return 0;
 }
@@ -156,10 +158,12 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	struct ebt_table_info *private;
 	bool hotdrop = false;
 	struct xt_match_param mtpar;
+	struct xt_target_param tgpar;
 
-	mtpar.in      = in;
-	mtpar.out     = out;
+	mtpar.in      = tgpar.in  = in;
+	mtpar.out     = tgpar.out = out;
 	mtpar.hotdrop = &hotdrop;
+	tgpar.hooknum = hook;
 
 	read_lock_bh(&table->lock);
 	private = table->private;
@@ -193,17 +197,18 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 
 		/* these should only watch: not modify, nor tell us
 		   what to do with the packet */
-		EBT_WATCHER_ITERATE(point, ebt_do_watcher, skb, hook, in,
-		   out);
+		EBT_WATCHER_ITERATE(point, ebt_do_watcher, skb, &tgpar);
 
 		t = (struct ebt_entry_target *)
 		   (((char *)point) + point->target_offset);
 		/* standard target */
 		if (!t->u.target->target)
 			verdict = ((struct ebt_standard_target *)t)->verdict;
-		else
-			verdict = t->u.target->target(skb, in, out, hook,
-				  t->u.target, t->data);
+		else {
+			tgpar.target   = t->u.target;
+			tgpar.targinfo = t->data;
+			verdict = t->u.target->target(skb, &tgpar);
+		}
 		if (verdict == EBT_ACCEPT) {
 			read_unlock_bh(&table->lock);
 			return NF_ACCEPT;
-- 
cgit v1.2.3


From af5d6dc200eb0fcc6fbd3df1ab4d8969004cb37f Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:19 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (5/6)

This patch does this for target extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_arpreply.c | 10 +++-------
 net/bridge/netfilter/ebt_dnat.c     | 19 ++++++++++---------
 net/bridge/netfilter/ebt_log.c      |  7 ++-----
 net/bridge/netfilter/ebt_mark.c     |  8 ++------
 net/bridge/netfilter/ebt_nflog.c    |  7 ++-----
 net/bridge/netfilter/ebt_redirect.c | 17 +++++++++--------
 net/bridge/netfilter/ebt_snat.c     |  8 ++------
 net/bridge/netfilter/ebt_ulog.c     |  7 ++-----
 net/bridge/netfilter/ebtables.c     | 28 ++++++++++++++++------------
 9 files changed, 48 insertions(+), 63 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebt_arpreply.c b/net/bridge/netfilter/ebt_arpreply.c
index fc94699f719..76584cd72e5 100644
--- a/net/bridge/netfilter/ebt_arpreply.c
+++ b/net/bridge/netfilter/ebt_arpreply.c
@@ -57,20 +57,16 @@ ebt_arpreply_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return info->target;
 }
 
-static bool
-ebt_arpreply_tg_check(const char *tablename, const void *entry,
-		      const struct xt_target *target, void *data,
-		      unsigned int hookmask)
+static bool ebt_arpreply_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct ebt_arpreply_info *info = data;
-	const struct ebt_entry *e = entry;
+	const struct ebt_arpreply_info *info = par->targinfo;
+	const struct ebt_entry *e = par->entryinfo;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return false;
 	if (e->ethproto != htons(ETH_P_ARP) ||
 	    e->invflags & EBT_IPROTO)
 		return false;
-	CLEAR_BASE_CHAIN_BIT;
 	return true;
 }
 
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index bb5d79e0bee..6b49ea9e31f 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -26,19 +26,20 @@ ebt_dnat_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return info->target;
 }
 
-static bool
-ebt_dnat_tg_check(const char *tablename, const void *entry,
-		  const struct xt_target *target, void *data,
-		  unsigned int hookmask)
+static bool ebt_dnat_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct ebt_nat_info *info = data;
+	const struct ebt_nat_info *info = par->targinfo;
+	unsigned int hook_mask;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return false;
-	CLEAR_BASE_CHAIN_BIT;
-	if ( (strcmp(tablename, "nat") ||
-	   (hookmask & ~((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT)))) &&
-	   (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
+
+	hook_mask = par->hook_mask & ~(1 << NF_BR_NUMHOOKS);
+	if ((strcmp(par->table, "nat") != 0 ||
+	    (hook_mask & ~((1 << NF_BR_PRE_ROUTING) |
+	    (1 << NF_BR_LOCAL_OUT)))) &&
+	    (strcmp(par->table, "broute") != 0 ||
+	    hook_mask & ~(1 << NF_BR_BROUTING)))
 		return false;
 	if (INVALID_TARGET)
 		return false;
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 87de5fccb2f..3d33c608906 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -24,12 +24,9 @@
 
 static DEFINE_SPINLOCK(ebt_log_lock);
 
-static bool
-ebt_log_tg_check(const char *table, const void *entry,
-		 const struct xt_target *target, void *data,
-		 unsigned int hook_mask)
+static bool ebt_log_tg_check(const struct xt_tgchk_param *par)
 {
-	struct ebt_log_info *info = data;
+	struct ebt_log_info *info = par->targinfo;
 
 	if (info->bitmask & ~EBT_LOG_MASK)
 		return false;
diff --git a/net/bridge/netfilter/ebt_mark.c b/net/bridge/netfilter/ebt_mark.c
index aafc456c3c3..2fee7e8e2e9 100644
--- a/net/bridge/netfilter/ebt_mark.c
+++ b/net/bridge/netfilter/ebt_mark.c
@@ -36,18 +36,14 @@ ebt_mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static bool
-ebt_mark_tg_check(const char *table, const void *e,
-		  const struct xt_target *target, void *data,
-		  unsigned int hookmask)
+static bool ebt_mark_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct ebt_mark_t_info *info = data;
+	const struct ebt_mark_t_info *info = par->targinfo;
 	int tmp;
 
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
 		return false;
-	CLEAR_BASE_CHAIN_BIT;
 	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
 		return false;
 	tmp = info->target & ~EBT_VERDICT_BITS;
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 6a28d994cf7..2a63d996dd4 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -35,12 +35,9 @@ ebt_nflog_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return EBT_CONTINUE;
 }
 
-static bool
-ebt_nflog_tg_check(const char *table, const void *e,
-		   const struct xt_target *target, void *data,
-		   unsigned int hookmask)
+static bool ebt_nflog_tg_check(const struct xt_tgchk_param *par)
 {
-	struct ebt_nflog_info *info = data;
+	struct ebt_nflog_info *info = par->targinfo;
 
 	if (info->flags & ~EBT_NFLOG_MASK)
 		return false;
diff --git a/net/bridge/netfilter/ebt_redirect.c b/net/bridge/netfilter/ebt_redirect.c
index 0cfe2fad940..c8a49f7a57b 100644
--- a/net/bridge/netfilter/ebt_redirect.c
+++ b/net/bridge/netfilter/ebt_redirect.c
@@ -32,18 +32,19 @@ ebt_redirect_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return info->target;
 }
 
-static bool
-ebt_redirect_tg_check(const char *tablename, const void *e,
-		      const struct xt_target *target, void *data,
-		      unsigned int hookmask)
+static bool ebt_redirect_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct ebt_redirect_info *info = data;
+	const struct ebt_redirect_info *info = par->targinfo;
+	unsigned int hook_mask;
 
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return false;
-	CLEAR_BASE_CHAIN_BIT;
-	if ( (strcmp(tablename, "nat") || hookmask & ~(1 << NF_BR_PRE_ROUTING)) &&
-	     (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
+
+	hook_mask = par->hook_mask & ~(1 << NF_BR_NUMHOOKS);
+	if ((strcmp(par->table, "nat") != 0 ||
+	    hook_mask & ~(1 << NF_BR_PRE_ROUTING)) &&
+	    (strcmp(par->table, "broute") != 0 ||
+	    hook_mask & ~(1 << NF_BR_BROUTING)))
 		return false;
 	if (INVALID_TARGET)
 		return false;
diff --git a/net/bridge/netfilter/ebt_snat.c b/net/bridge/netfilter/ebt_snat.c
index f55960eee99..8d04d4c302b 100644
--- a/net/bridge/netfilter/ebt_snat.c
+++ b/net/bridge/netfilter/ebt_snat.c
@@ -42,18 +42,14 @@ out:
 	return info->target | ~EBT_VERDICT_BITS;
 }
 
-static bool
-ebt_snat_tg_check(const char *tablename, const void *e,
-		  const struct xt_target *target, void *data,
-		  unsigned int hookmask)
+static bool ebt_snat_tg_check(const struct xt_tgchk_param *par)
 {
-	const struct ebt_nat_info *info = data;
+	const struct ebt_nat_info *info = par->targinfo;
 	int tmp;
 
 	tmp = info->target | ~EBT_VERDICT_BITS;
 	if (BASE_CHAIN && tmp == EBT_RETURN)
 		return false;
-	CLEAR_BASE_CHAIN_BIT;
 
 	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)
 		return false;
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index bfedf12cbf4..2c6d6823e70 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -254,12 +254,9 @@ ebt_ulog_tg(struct sk_buff *skb, const struct xt_target_param *par)
 	return EBT_CONTINUE;
 }
 
-static bool
-ebt_ulog_tg_check(const char *table, const void *entry,
-		  const struct xt_target *target, void *data,
-		  unsigned int hookmask)
+static bool ebt_ulog_tg_check(const struct xt_tgchk_param *par)
 {
-	struct ebt_ulog_info *uloginfo = data;
+	struct ebt_ulog_info *uloginfo = par->targinfo;
 
 	if (uloginfo->nlgroup > 31)
 		return false;
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index a1156bab4a0..cf823c21c16 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -363,9 +363,10 @@ ebt_check_match(struct ebt_entry_match *m, struct xt_mtchk_param *par,
 }
 
 static inline int
-ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
-   const char *name, unsigned int hookmask, unsigned int *cnt)
+ebt_check_watcher(struct ebt_entry_watcher *w, struct xt_tgchk_param *par,
+		  unsigned int *cnt)
 {
+	const struct ebt_entry *e = par->entryinfo;
 	struct xt_target *watcher;
 	size_t left = ((char *)e + e->target_offset) - (char *)w;
 	int ret;
@@ -383,9 +384,10 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
 		return -ENOENT;
 	w->u.watcher = watcher;
 
-	ret = xt_check_target(watcher, NFPROTO_BRIDGE, w->watcher_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
-	      e, w->data);
+	par->target   = watcher;
+	par->targinfo = w->data;
+	ret = xt_check_target(par, NFPROTO_BRIDGE, w->watcher_size,
+	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(watcher->me);
 		return ret;
@@ -619,6 +621,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	size_t gap;
 	int ret;
 	struct xt_mtchk_param mtpar;
+	struct xt_tgchk_param tgpar;
 
 	/* don't mess with the struct ebt_entries */
 	if (e->bitmask == 0)
@@ -660,14 +663,14 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	}
 	i = 0;
 
-	mtpar.table     = name;
-	mtpar.entryinfo = e;
-	mtpar.hook_mask = hookmask;
+	mtpar.table     = tgpar.table     = name;
+	mtpar.entryinfo = tgpar.entryinfo = e;
+	mtpar.hook_mask = tgpar.hook_mask = hookmask;
 	ret = EBT_MATCH_ITERATE(e, ebt_check_match, &mtpar, &i);
 	if (ret != 0)
 		goto cleanup_matches;
 	j = 0;
-	ret = EBT_WATCHER_ITERATE(e, ebt_check_watcher, e, name, hookmask, &j);
+	ret = EBT_WATCHER_ITERATE(e, ebt_check_watcher, &tgpar, &j);
 	if (ret != 0)
 		goto cleanup_watchers;
 	t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
@@ -703,9 +706,10 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 		goto cleanup_watchers;
 	}
 
-	ret = xt_check_target(target, NFPROTO_BRIDGE, t->target_size,
-	      name, hookmask, e->ethproto, e->invflags & EBT_IPROTO,
-	      e, t->data);
+	tgpar.target   = target;
+	tgpar.targinfo = t->data;
+	ret = xt_check_target(&tgpar, NFPROTO_BRIDGE, t->target_size,
+	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(target->me);
 		goto cleanup_watchers;
-- 
cgit v1.2.3


From a2df1648ba615dd5908e9a1fa7b2f133fa302487 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:19 +0200
Subject: netfilter: xtables: move extension arguments into compound structure
 (6/6)

This patch does this for target extensions' destroy functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index cf823c21c16..29d8061fa15 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -581,18 +581,23 @@ ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
 static inline int
 ebt_cleanup_watcher(struct ebt_entry_watcher *w, unsigned int *i)
 {
+	struct xt_tgdtor_param par;
+
 	if (i && (*i)-- == 0)
 		return 1;
-	if (w->u.watcher->destroy)
-		w->u.watcher->destroy(w->u.watcher, w->data);
-	module_put(w->u.watcher->me);
 
+	par.target   = w->u.watcher;
+	par.targinfo = w->data;
+	if (par.target->destroy != NULL)
+		par.target->destroy(&par);
+	module_put(par.target->me);
 	return 0;
 }
 
 static inline int
 ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
 {
+	struct xt_tgdtor_param par;
 	struct ebt_entry_target *t;
 
 	if (e->bitmask == 0)
@@ -603,10 +608,12 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
 	EBT_WATCHER_ITERATE(e, ebt_cleanup_watcher, NULL);
 	EBT_MATCH_ITERATE(e, ebt_cleanup_match, NULL);
 	t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
-	if (t->u.target->destroy)
-		t->u.target->destroy(t->u.target, t->data);
-	module_put(t->u.target->me);
 
+	par.target   = t->u.target;
+	par.targinfo = t->data;
+	if (par.target->destroy != NULL)
+		par.target->destroy(&par);
+	module_put(par.target->me);
 	return 0;
 }
 
-- 
cgit v1.2.3


From 916a917dfec18535ff9e2afdafba82e6279eb4f4 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:20 +0200
Subject: netfilter: xtables: provide invoked family value to extensions

By passing in the family through which extensions were invoked, a bit
of data space can be reclaimed. The "family" member will be added to
the parameter structures and the check functions be adjusted.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebtables.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'net/bridge')

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 29d8061fa15..5bb88eb0aad 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -160,6 +160,7 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
 	struct xt_match_param mtpar;
 	struct xt_target_param tgpar;
 
+	mtpar.family  = tgpar.family = NFPROTO_BRIDGE;
 	mtpar.in      = tgpar.in  = in;
 	mtpar.out     = tgpar.out = out;
 	mtpar.hotdrop = &hotdrop;
@@ -351,7 +352,7 @@ ebt_check_match(struct ebt_entry_match *m, struct xt_mtchk_param *par,
 
 	par->match     = match;
 	par->matchinfo = m->data;
-	ret = xt_check_match(par, NFPROTO_BRIDGE, m->match_size,
+	ret = xt_check_match(par, m->match_size,
 	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(match->me);
@@ -386,7 +387,7 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct xt_tgchk_param *par,
 
 	par->target   = watcher;
 	par->targinfo = w->data;
-	ret = xt_check_target(par, NFPROTO_BRIDGE, w->watcher_size,
+	ret = xt_check_target(par, w->watcher_size,
 	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(watcher->me);
@@ -572,6 +573,7 @@ ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
 
 	par.match     = m->u.match;
 	par.matchinfo = m->data;
+	par.family    = NFPROTO_BRIDGE;
 	if (par.match->destroy != NULL)
 		par.match->destroy(&par);
 	module_put(par.match->me);
@@ -588,6 +590,7 @@ ebt_cleanup_watcher(struct ebt_entry_watcher *w, unsigned int *i)
 
 	par.target   = w->u.watcher;
 	par.targinfo = w->data;
+	par.family   = NFPROTO_BRIDGE;
 	if (par.target->destroy != NULL)
 		par.target->destroy(&par);
 	module_put(par.target->me);
@@ -611,6 +614,7 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
 
 	par.target   = t->u.target;
 	par.targinfo = t->data;
+	par.family   = NFPROTO_BRIDGE;
 	if (par.target->destroy != NULL)
 		par.target->destroy(&par);
 	module_put(par.target->me);
@@ -673,6 +677,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 	mtpar.table     = tgpar.table     = name;
 	mtpar.entryinfo = tgpar.entryinfo = e;
 	mtpar.hook_mask = tgpar.hook_mask = hookmask;
+	mtpar.family    = tgpar.family    = NFPROTO_BRIDGE;
 	ret = EBT_MATCH_ITERATE(e, ebt_check_match, &mtpar, &i);
 	if (ret != 0)
 		goto cleanup_matches;
@@ -715,7 +720,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
 
 	tgpar.target   = target;
 	tgpar.targinfo = t->data;
-	ret = xt_check_target(&tgpar, NFPROTO_BRIDGE, t->target_size,
+	ret = xt_check_target(&tgpar, t->target_size,
 	      e->ethproto, e->invflags & EBT_IPROTO);
 	if (ret < 0) {
 		module_put(target->me);
-- 
cgit v1.2.3