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2014-11-25ip6_udp_tunnel: Fix checksum calculationAlexander Duyck1-3/+1
The UDP checksum calculation for VXLAN tunnels is currently using the socket addresses instead of the actual packet source and destination addresses. As a result the checksum calculated is incorrect in some cases. Also uh->check was being set twice, first it was set to 0, and then it is set again in udp6_set_csum. This change removes the redundant assignment to 0. Fixes: acbf74a7 ("vxlan: Refactor vxlan driver to make use of the common UDP tunnel functions.") Cc: Andy Zhou <azhou@nicira.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-22udp: Need to make ip6_udp_tunnel.c have GPL licenseTom Herbert1-0/+2
Unable to load various tunneling modules without this: [ 80.679049] fou: Unknown symbol udp_sock_create6 (err 0) [ 91.439939] ip6_udp_tunnel: Unknown symbol ip6_local_out (err 0) [ 91.439954] ip6_udp_tunnel: Unknown symbol __put_net (err 0) [ 91.457792] vxlan: Unknown symbol udp_sock_create6 (err 0) [ 91.457831] vxlan: Unknown symbol udp_tunnel6_xmit_skb (err 0) Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-19udp-tunnel: Add a few more UDP tunnel APIsAndy Zhou1-0/+42
Added a few more UDP tunnel APIs that can be shared by UDP based tunnel protocol implementation. The main ones are highlighted below. setup_udp_tunnel_sock() configures UDP listener socket for receiving UDP encapsulated packets. udp_tunnel_xmit_skb() and upd_tunnel6_xmit_skb() transmit skb using UDP encapsulation. udp_tunnel_sock_release() closes the UDP tunnel listener socket. Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-19udp_tunnel: Seperate ipv6 functions into its own file.Andy Zhou1-0/+63
Add ip6_udp_tunnel.c for ipv6 UDP tunnel functions to avoid ifdefs in udp_tunnel.c Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>