#include <linux/module.h>
#include <linux/skbuff.h>
+#include <linux/netfilter_bridge.h>
#include <linux/netfilter/xt_physdev.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_bridge.h>
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
+ const struct xt_match *match,
const void *matchinfo,
int offset,
unsigned int protoff,
static int
checkentry(const char *tablename,
const void *ip,
+ const struct xt_match *match,
void *matchinfo,
- unsigned int matchsize,
unsigned int hook_mask)
{
const struct xt_physdev_info *info = matchinfo;
- if (matchsize != XT_ALIGN(sizeof(struct xt_physdev_info)))
- return 0;
if (!(info->bitmask & XT_PHYSDEV_OP_MASK) ||
info->bitmask & ~XT_PHYSDEV_OP_MASK)
return 0;
+ if (info->bitmask & XT_PHYSDEV_OP_OUT &&
+ (!(info->bitmask & XT_PHYSDEV_OP_BRIDGED) ||
+ info->invert & XT_PHYSDEV_OP_BRIDGED) &&
+ hook_mask & ((1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_FORWARD) |
+ (1 << NF_IP_POST_ROUTING))) {
+ printk(KERN_WARNING "physdev match: using --physdev-out in the "
+ "OUTPUT, FORWARD and POSTROUTING chains for non-bridged "
+ "traffic is not supported anymore.\n");
+ if (hook_mask & (1 << NF_IP_LOCAL_OUT))
+ return 0;
+ }
return 1;
}
-static struct xt_match physdev_match = {
- .name = "physdev",
- .match = &match,
- .checkentry = &checkentry,
- .me = THIS_MODULE,
-};
-
-static struct xt_match physdev6_match = {
- .name = "physdev",
- .match = &match,
- .checkentry = &checkentry,
- .me = THIS_MODULE,
+static struct xt_match xt_physdev_match[] = {
+ {
+ .name = "physdev",
+ .family = AF_INET,
+ .checkentry = checkentry,
+ .match = match,
+ .matchsize = sizeof(struct xt_physdev_info),
+ .me = THIS_MODULE,
+ },
+ {
+ .name = "physdev",
+ .family = AF_INET6,
+ .checkentry = checkentry,
+ .match = match,
+ .matchsize = sizeof(struct xt_physdev_info),
+ .me = THIS_MODULE,
+ },
};
-static int __init init(void)
+static int __init xt_physdev_init(void)
{
- int ret;
-
- ret = xt_register_match(AF_INET, &physdev_match);
- if (ret < 0)
- return ret;
-
- ret = xt_register_match(AF_INET6, &physdev6_match);
- if (ret < 0)
- xt_unregister_match(AF_INET, &physdev_match);
-
- return ret;
+ return xt_register_matches(xt_physdev_match,
+ ARRAY_SIZE(xt_physdev_match));
}
-static void __exit fini(void)
+static void __exit xt_physdev_fini(void)
{
- xt_unregister_match(AF_INET, &physdev_match);
- xt_unregister_match(AF_INET6, &physdev6_match);
+ xt_unregister_matches(xt_physdev_match, ARRAY_SIZE(xt_physdev_match));
}
-module_init(init);
-module_exit(fini);
+module_init(xt_physdev_init);
+module_exit(xt_physdev_fini);