linux/net/l2tp
Julian Anastasov 0dec879f63 net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP
When same struct dst_entry can be used for many different
neighbours we can not use it for pending confirmations.

The datagram protocols can use MSG_CONFIRM to confirm the
neighbour. When used with MSG_PROBE we do not reach the
code where neighbour is confirmed, so we have to do the
same slow lookup by using the dst_confirm_neigh() helper.
When MSG_PROBE is not used, ip_append_data/ip6_append_data
will set the skb flag dst_pending_confirm.

Reported-by: YueHaibing <yuehaibing@huawei.com>
Fixes: 5110effee8 ("net: Do delayed neigh confirmation.")
Fixes: f2bb4bedf3 ("ipv4: Cache output routes in fib_info nexthops.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 13:07:47 -05:00
..
Kconfig l2tp: Call udp_sock_create 2014-07-14 16:12:15 -07:00
l2tp_core.c net: l2tp: fix negative assignment to unsigned int 2016-11-09 18:55:36 -05:00
l2tp_core.h net: l2tp: export debug flags to UAPI 2016-12-10 23:29:11 -05:00
l2tp_debugfs.c ipv6: make lookups simpler and faster 2013-10-09 00:01:25 -04:00
l2tp_eth.c net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
l2tp_ip.c l2tp: rework socket comparison in __l2tp_ip*_bind_lookup() 2017-01-06 22:18:56 -05:00
l2tp_ip6.c net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP 2017-02-07 13:07:47 -05:00
l2tp_netlink.c net: l2tp: cleanup: remove redundant condition 2016-11-09 18:55:36 -05:00
l2tp_ppp.c net: l2tp: ppp: change PPPOL2TP_MSG_* => L2TP_MSG_* 2016-12-10 23:29:11 -05:00
Makefile