linux/drivers/net/vxlan.c, branch v3.10.2

vxlan: fix check for migration of static entry

2013-06-19T07:50:58Z

The check introduced by: commit 26a41ae604381c5cc0caf1c3261ca6b298b5fe69 Author: stephen hemminger Date: Mon Jun 17 12:09:58 2013 -0700 vxlan: only migrate dynamic FDB entries was not correct because it is checking flag about type of FDB entry, rather than the state (dynamic versus static). The confusion arises because vxlan is reusing values from bridge, and bridge is reusing values from neighbour table, and easy to get lost in translation. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: handle skb_clone failure

2013-06-17T22:55:47Z

If skb_clone fails if out of memory then just skip the fanout. Problem was introduced in 3.10 with: commit 6681712d67eef14c4ce793561c3231659153a320 Author: David Stevens Date: Fri Mar 15 04:35:51 2013 +0000 vxlan: generalize forwarding tables Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: only migrate dynamic FDB entries

2013-06-17T22:55:46Z

Only migrate dynamic forwarding table entries, don't modify static entries. If packet received from incorrect source IP address assume it is an imposter and drop it. This patch applies only to -net, a different patch would be needed for earlier kernels since the NTF_SELF flag was introduced with 3.10. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: fix race between flush and incoming learning

2013-06-17T22:55:46Z

It is possible for a packet to arrive during vxlan_stop(), and have a dynamic entry created. Close this by checking if device is up. CPU1 CPU2 vxlan_stop vxlan_flush hash_lock acquired vxlan_encap_recv vxlan_snoop waiting for hash_lock hash_lock relased vxlan_flush done hash_lock acquired vxlan_fdb_create This is a day-one bug in vxlan goes back to 3.7. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: Update vxlan fdb 'used' field after each usage

2013-05-18T19:53:39Z

Fix some instances where vxlan fdb 'used' field is not updated after the entry is used. v2: rename vxlan_find_mac() as __vxlan_find_mac() and create a new vxlan_find_mac() that also updates ->used field. Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller

vxlan: do not set SKB_GSO_UDP

2013-04-29T19:27:47Z

Since SKB_GSO_* flags are set by appropriate gso_segment callback in TCP/UDP layer. CC: Pravin B Shelar Signed-off-by: Dmitry Kravkov Signed-off-by: Eilon Greenstein Acked-by: Pravin B Shelar Signed-off-by: David S. Miller

vxlan: allow choosing destination port per vxlan

2013-04-29T15:53:12Z

Allow configuring the default destination port on a per-device basis. Adds new netlink paramater IFLA_VXLAN_PORT to allow setting destination port when creating new vxlan. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: compute source port in network byte order

2013-04-29T15:53:12Z

Rather than computing source port and returning it in host order then swapping later, go ahead and compute it in network order to start with. Cleaner and less error prone. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: source compatiablity with IFLA_VXLAN_GROUP (v2)

2013-04-29T15:53:12Z

Source compatiability for build iproute2 was broken by: commit c7995c43facc6e5dea4de63fa9d283a337aabeb1 Author: Atzm Watanabe vxlan: Allow setting destination to unicast address. Since this commit has not made it upstream (still net-next), and better to avoid gratitious changes to exported API's; go back to original definition, and add a comment. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

vxlan: fix byte order issues with NDA_PORT

2013-04-29T15:53:12Z

The NDA_PORT attribute was added, but the author wasn't careful about width (port is 16 bits), or byte order. The attribute was being dumped as 16 bits, but only 32 bit value would be accepted when setting up a device. Also, the remote port is in network byte order and was being compared with default port in host byte order. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller