From: Wang Shanker <shankerwangm...@gmail.com> Date: Fri, 29 Apr 2016 01:29:43 +0800
> This patch fixes a bug which causes the behavior of whether to ignore > udp6 checksum of udp6 encapsulated l2tp tunnel contrary to what > userspace program requests. > > When the flag `L2TP_ATTR_UDP_ZERO_CSUM6_RX` is set by userspace, it is > expected that udp6 checksums of received packets of the l2tp tunnel > to create should be ignored. In `l2tp_netlink.c`: > `l2tp_nl_cmd_tunnel_create()`, `cfg.udp6_zero_rx_checksums` is set > according to the flag, and then passed to `l2tp_core.c`: > `l2tp_tunnel_create()` and then `l2tp_tunnel_sock_create()`. In > `l2tp_tunnel_sock_create()`, `udp_conf.use_udp6_rx_checksums` is set > the same to `cfg.udp6_zero_rx_checksums`. However, if we want the > checksum to be ignored, `udp_conf.use_udp6_rx_checksums` should be set > to `false`, i.e. be set to the contrary. Similarly, the same should be > done to `udp_conf.use_udp6_tx_checksums`. > > Signed-off-by: Miao Wang <shankerwangm...@gmail.com> Applied, thanks.
