kernel/net/ipv4/gre.c, branch linux-rolling-stable

net: gre: move GSO functions to gre_offload

2013-07-03T21:37:39Z

Similarly to TCP/UDP offloading, move all related GRE functions to gre_offload.c to make things more explicit and similar to the rest of the code. Suggested-by: Eric Dumazet Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

ip_tunnel: push generic protocol handling to ip_tunnel module.

2013-06-20T01:07:41Z

Process skb tunnel header before sending packet to protocol handler. this allows code sharing between gre and ovs gre modules. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gre: export gre_handle_offloads() function.

2013-06-20T01:07:41Z

This is required for OVS GRE offloading. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gre: export gre_build_header() function.

2013-06-20T01:07:40Z

This is required for ovs gre module. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gre: Allow multiple protocol listener for gre protocol.

2013-06-20T01:07:40Z

Currently there is only one user is allowed to register for gre protocol. Following patch adds de-multiplexer. So that multiple modules can listen on gre protocol e.g. kernel gre devices and ovs. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gre: Simplify gre protocol registration locking.

2013-06-20T01:07:40Z

Use cmpxchg() for atomic protocol registration which saves code and data space. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol()

2013-05-08T20:13:30Z

Rather than having logic to calculate inner protocol in every tunnel gso handler move it to gso code. This simplifies code. Cc: Eric Dumazet Cc: Cong Wang Cc: David S. Miller Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

gre: Fix GREv4 TCPv6 segmentation.

2013-05-03T20:08:58Z

For ipv6 traffic, GRE can generate packet with strange GSO bits, e.g. ipv4 packet with SKB_GSO_TCPV6 flag set. Therefore following patch relaxes check in inet gso handler to allow such packet for segmentation. This patch also fixes wrong skb->protocol set that was done in gre_gso_segment() handler. Reported-by: Steinar H. Gunderson CC: Eric Dumazet Signed-off-by: Pravin B Shelar Acked-by: Eric Dumazet Signed-off-by: David S. Miller

GRE: Refactor GRE tunneling code.

2013-03-26T16:27:18Z

Following patch refactors GRE code into ip tunneling code and GRE specific code. Common tunneling code is moved to ip_tunnel module. ip_tunnel module is written as generic library which can be used by different tunneling implementations. ip_tunnel module contains following components: - packet xmit and rcv generic code. xmit flow looks like (gre_xmit/ipip_xmit)->ip_tunnel_xmit->ip_local_out. - hash table of all devices. - lookup for tunnel devices. - control plane operations like device create, destroy, ioctl, netlink operations code. - registration for tunneling modules, like gre, ipip etc. - define single pcpu_tstats dev->tstats. - struct tnl_ptk_info added to pass parsed tunnel packet parameters. ipip.h header is renamed to ip_tunnel.h Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

Revert "ip_gre: increase inner ip header ID during segmentation"

2013-03-25T16:29:54Z

This reverts commit 10c0d7ed32b7c273970a20e211c08ab46fea3c26. Next commit makes this commit unnecessary. Acked-by: Cong Wang Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller