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authorEric W. Biederman <ebiederm@xmission.com>2007-09-17 11:53:39 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:49:08 -0700
commite730c15519d09ea528b4d2f1103681fa5937c0e6 (patch)
treec117294523f4d004fb1d740610b6403e5744cdfc /drivers/block
parent6d34b1c27a72d5d1c73c567b2f6b1fde316e0eae (diff)
[NET]: Make packet reception network namespace safe
This patch modifies every packet receive function registered with dev_add_pack() to drop packets if they are not from the initial network namespace. This should ensure that the various network stacks do not receive packets in a anything but the initial network namespace until the code has been converted and is ready for them. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/aoe/aoenet.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index f9ddfda4d9c..4dc0fb7da94 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -8,6 +8,7 @@
#include <linux/blkdev.h>
#include <linux/netdevice.h>
#include <linux/moduleparam.h>
+#include <net/net_namespace.h>
#include <asm/unaligned.h>
#include "aoe.h"
@@ -114,6 +115,9 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
struct aoe_hdr *h;
u32 n;
+ if (ifp->nd_net != &init_net)
+ goto exit;
+
skb = skb_share_check(skb, GFP_ATOMIC);
if (skb == NULL)
return 0;