BMC/Intel-BMC/linux.git/include/net/udp_tunnel.h, branch dev-4.6

udp_tunnel: Remove redundant udp_tunnel_gro_complete().

2016-05-06T22:25:26+00:00

The setting of the UDP tunnel GSO type is already performed by udp[46]_gro_complete(). Signed-off-by: Jarno Rajahalme Signed-off-by: David S. Miller

ip_tunnel: add support for setting flow label via collect metadata

2016-03-11T20:14:26+00:00

This patch extends udp_tunnel6_xmit_skb() to pass in the IPv6 flow label from call sites. Currently, there's no such option and it's always set to zero when writing ip6_flow_hdr(). Add a label member to ip_tunnel_key, so that flow-based tunnels via collect metadata frontends can make use of it. vxlan and geneve will be converted to add flow label support separately. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller

net: ip_tunnel: remove 'csum_help' argument to iptunnel_handle_offloads

2016-02-12T10:52:16+00:00

All users now pass false, so we can remove it, and remove the code that was conditional upon it. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

net: enable LCO for udp_tunnel_handle_offloads() users

2016-02-12T10:52:15+00:00

The only protocol affected at present is Geneve. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

ip_tunnel: Move stats update to iptunnel_xmit()

2015-12-26T04:32:23+00:00

By moving stats update into iptunnel_xmit(), we can simplify iptunnel_xmit() usage. With this change there is no need to call another function (iptunnel_xmit_stats()) to update stats in tunnel xmit code path. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller

vxlan: do not receive IPv4 packets on IPv6 socket

2015-08-29T20:07:54+00:00

By default (subject to the sysctl settings), IPv6 sockets listen also for IPv4 traffic. Vxlan is not prepared for that and expects IPv6 header in packets received through an IPv6 socket. In addition, it's currently not possible to have both IPv4 and IPv6 vxlan tunnel on the same port (unless bindv6only sysctl is enabled), as it's not possible to create and bind both IPv4 and IPv6 vxlan interfaces and there's no way to specify both IPv4 and IPv6 remote/group IP addresses. Set IPV6_V6ONLY on vxlan sockets to fix both of these issues. This is not done globally in udp_tunnel, as l2tp and tipc seems to work okay when receiving IPv4 packets on IPv6 socket and people may rely on this behavior. The other tunnels (geneve and fou) do not support IPv6. Signed-off-by: Jiri Benc Signed-off-by: David S. Miller

tunnel: introduce udp_tun_rx_dst()

2015-08-27T22:42:47+00:00

Introduce function udp_tun_rx_dst() to initialize tunnel dst on receive path. Signed-off-by: Pravin B Shelar Reviewed-by: Jesse Gross Acked-by: Thomas Graf Signed-off-by: David S. Miller

udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb().

2015-04-07T19:29:08+00:00

That was we can make sure the output path of ipv4/ipv6 operate on the UDP socket rather than whatever random thing happens to be in skb->sk. Based upon a patch by Jiri Pirko. Signed-off-by: David S. Miller Acked-by: Hannes Frederic Sowa

udp: Do not require sock in udp_tunnel_xmit_skb

2015-01-25T07:15:40+00:00

The UDP tunnel transmit functions udp_tunnel_xmit_skb and udp_tunnel6_xmit_skb include a socket argument. The socket being passed to the functions (from VXLAN) is a UDP created for receive side. The only thing that the socket is used for in the transmit functions is to get the setting for checksum (enabled or zero). This patch removes the argument and and adds a nocheck argument for checksum setting. This eliminates the unnecessary dependency on a UDP socket for UDP tunnel transmit. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.

2014-11-10T20:09:45+00:00

When doing GRO processing for UDP tunnels, we never add SKB_GSO_UDP_TUNNEL to gso_type - only the type of the inner protocol is added (such as SKB_GSO_TCPV4). The result is that if the packet is later resegmented we will do GSO but not treat it as a tunnel. This results in UDP fragmentation of the outer header instead of (i.e.) TCP segmentation of the inner header as was originally on the wire. Signed-off-by: Jesse Gross Signed-off-by: David S. Miller