AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-25 05:30:54 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

lwtunnel: ip tunnel: fix multiple routes with different encap

Browse Source 
Currently, two routes going through the same tunnel interface are considered
the same even when they are routed to a different host after encapsulation.
This causes all routes added after the first one to have incorrect
encapsulation parameters.

This is nicely visible by doing:

  # ip r a 192.168.1.2/32 dev vxlan0 tunnel dst 10.0.0.2
  # ip r a 192.168.1.3/32 dev vxlan0 tunnel dst 10.0.0.3
  # ip r
  [...]
  192.168.1.2/32 tunnel id 0 src 0.0.0.0 dst 10.0.0.2 [...]
  192.168.1.3/32 tunnel id 0 src 0.0.0.0 dst 10.0.0.2 [...]

Implement the missing comparison function.

Fixes: 3093fbe7ff ("route: Per route IP tunnel metadata via lightweight tunnel")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2015-08-18 18:42:09 +02:00 committed by David S. Miller
parent df383e6240
commit 2d79849903
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
net/ipv4/ip_tunnel_core.c
View File

@ -286,10 +286,17 @@ static int ip_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+ nla_total_size(2); /* LWTUNNEL_IP_FLAGS */
}
static int ip_tun_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b)
{
return memcmp(lwt_tun_info(a), lwt_tun_info(b),
sizeof(struct ip_tunnel_info));
}
static const struct lwtunnel_encap_ops ip_tun_lwt_ops = {
.build_state = ip_tun_build_state,
.fill_encap = ip_tun_fill_encap_info,
.get_encap_size = ip_tun_encap_nlsize,
.cmp_encap = ip_tun_cmp_encap,
};
void __init ip_tunnel_core_init(void)