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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/net/bonding
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/net/bonding')
-rw-r--r--drivers/net/bonding/bond_3ad.c4
-rw-r--r--drivers/net/bonding/bond_alb.c3
-rw-r--r--drivers/net/bonding/bond_main.c3
3 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index f829e4ad8b49..94bd73941451 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -29,6 +29,7 @@
#include <linux/ethtool.h>
#include <linux/if_bonding.h>
#include <linux/pkt_sched.h>
+#include <net/net_namespace.h>
#include "bonding.h"
#include "bond_3ad.h"
@@ -2448,6 +2449,9 @@ int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct net_device *dev, struct pac
struct slave *slave = NULL;
int ret = NET_RX_DROP;
+ if (dev->nd_net != &init_net)
+ goto out;
+
if (!(dev->flags & IFF_MASTER))
goto out;
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 92c3b6f6a8e7..419a9f8fdd53 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -345,6 +345,9 @@ static int rlb_arp_recv(struct sk_buff *skb, struct net_device *bond_dev, struct
struct arp_pkt *arp = (struct arp_pkt *)skb->data;
int res = NET_RX_DROP;
+ if (bond_dev->nd_net != &init_net)
+ goto out;
+
if (!(bond_dev->flags & IFF_MASTER))
goto out;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 5de648f90a45..e4e5fdc0430b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2458,6 +2458,9 @@ static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct pack
unsigned char *arp_ptr;
u32 sip, tip;
+ if (dev->nd_net != &init_net)
+ goto out;
+
if (!(dev->priv_flags & IFF_BONDING) || !(dev->flags & IFF_MASTER))
goto out;