[NETNS]: Process inet_confirm_addr in the correct namespace. (39a6d063) · Commits · 戴 / test

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> Signed-off-by:

David S. Miller <davem@davemloft.net>

net/ipv4/arp.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -402,7 +402,6 @@ 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:

net/ipv4/devinet.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -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)

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