For multipath routes the ONLINK flag can be specified per nexthop in
rtnh_flags or globally in rtm_flags. Update ip6_route_multipath_add
to consider the ONLINK setting coming from rtnh_flags. Each loop over
nexthops the config for the sibling route is initialized to the global
config and then per nexthop settings overlayed. The flag is 'or'ed into
fib6_config to handle the ONLINK flag coming from either rtm_flags or
rtnh_flags.
Fixes: fc1e64e1092f ("net/ipv6: Add support for onlink flag")
Signed-off-by: David Ahern <[email protected]>
---
v3
- no change; resend because patchworks shows v2 as superseded
v2
- updated commit message to reflect flag can be global or per-nexthop
and both need to be handled
net/ipv6/route.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b3c1137ad0b8..b0d5c64e1978 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4112,6 +4112,7 @@ static int ip6_route_multipath_add(struct fib6_config
*cfg,
r_cfg.fc_encap_type = nla_get_u16(nla);
}
+ r_cfg.fc_flags |= (rtnh->rtnh_flags & RTNH_F_ONLINK);
rt = ip6_route_info_create(&r_cfg, extack);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
--
2.11.0
