+module_exit(fini);
diff -Nurb linux-2.6.22-510/net/packet/af_packet.c linux-2.6.22-520/net/packet/af_packet.c
--- linux-2.6.22-510/net/packet/af_packet.c 2007-07-08 19:32:17.000000000 -0400
-+++ linux-2.6.22-520/net/packet/af_packet.c 2008-06-06 17:07:56.000000000 -0400
++++ linux-2.6.22-520/net/packet/af_packet.c 2008-06-07 18:30:41.000000000 -0400
@@ -78,6 +78,7 @@
#include <linux/poll.h>
#include <linux/module.h>
#ifdef CONFIG_INET
#include <net/inet_common.h>
-@@ -324,6 +325,9 @@
+@@ -246,10 +247,13 @@
+
+ static const struct proto_ops packet_ops_spkt;
+
++extern DEFINE_PER_CPU(int, sknid_elevator);
+ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
+ {
+ struct sock *sk;
+ struct sockaddr_pkt *spkt;
++ int tag = skb->skb_tag;
++ int *elevator=&__get_cpu_var(sknid_elevator);
+
+ /*
+ * When we registered the protocol we saved the socket in the data
+@@ -269,6 +273,22 @@
+ * so that this procedure is noop.
+ */
+
++ /*
++ * (18:05:41) daniel_hozac: where?
++ * (18:05:58) daniel_hozac: we already have filters on PF_PACKET, don't we?
++ * (18:05:58) er: in packet_rcv_skpt
++ * (18:07:33) daniel_hozac: oh, that's evil.
++ */
++
++ if (sk->sk_nx_info && !(tag == 1 || sk->sk_nid == tag)) {
++ *elevator=-2;
++ goto out;
++ }
++ else if (!sk->sk_nx_info && *elevator) {
++ /* Root has already seen this packet */
++ goto out;
++ }
++
+ if (skb->pkt_type == PACKET_LOOPBACK)
+ goto out;
+
+@@ -324,6 +344,9 @@
__be16 proto=0;
int err;
/*
* Get and verify the address.
*/
-@@ -416,10 +420,22 @@
- return err;
- }
-
-+extern DEFINE_PER_CPU(int, sknid_elevator);
- static inline unsigned int run_filter(struct sk_buff *skb, struct sock *sk,
+@@ -420,6 +443,17 @@
unsigned int res)
{
struct sk_filter *filter;
rcu_read_lock_bh();
filter = rcu_dereference(sk->sk_filter);
-@@ -711,6 +727,9 @@
+@@ -711,6 +745,9 @@
unsigned char *addr;
int ifindex, err, reserve = 0;
/*
* Get and verify the address.
*/
-@@ -984,7 +1003,7 @@
+@@ -984,8 +1021,9 @@
__be16 proto = (__force __be16)protocol; /* weird, but documented */
int err;
- if (!capable(CAP_NET_RAW))
+ if (!nx_capable(CAP_NET_RAW, NXC_RAW_SOCKET))
return -EPERM;
++
if (sock->type != SOCK_DGRAM && sock->type != SOCK_RAW &&
sock->type != SOCK_PACKET)
+ return -ESOCKTNOSUPPORT;