[PATCH 2/2 net-2.6.25] [NETNS] Process inet_confirm_addr in the correct namespace.
inet_confirm_addr can be called with NULL in_dev from arp_ignore iff scope is RT_SCOPE_LINK. Lets always pass the device and check for RT_SCOPE_LINK scope inside inet_confirm_addr. This let us take network namespace from in_device a need for an additional argument. Signed-off-by: Denis V. Lunev <den@openvz.org> --- net/ipv4/arp.c | 1 - net/ipv4/devinet.c | 6 ++++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index f38e1a9..b715ec0 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -402,7 +400,6 @@ static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip) case 3: /* Do not reply for scope host addresses */ sip = 0; scope = RT_SCOPE_LINK; - in_dev = NULL; break; case 4: /* Reserved */ case 5: diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index dc1665a..4569c69 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -978,13 +978,15 @@ __be32 inet_confirm_addr(struct in_device *in_dev, { __be32 addr = 0; struct net_device *dev; + struct net *net; - if (in_dev != NULL) + if (scope != RT_SCOPE_LINK) return confirm_addr_indev(in_dev, dst, local, scope); + net = in_dev->dev->nd_net; read_lock(&dev_base_lock); rcu_read_lock(); - for_each_netdev(&init_net, dev) { + for_each_netdev(net, dev) { if ((in_dev = __in_dev_get_rcu(dev))) { addr = confirm_addr_indev(in_dev, dst, local, scope); if (addr) -- 1.5.3.rc5