diff options
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 1eafcfc95e81..352690e2ab82 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -978,12 +978,27 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, break; case IPV6_UNICAST_HOPS: - val = np->hop_limit; - break; - case IPV6_MULTICAST_HOPS: - val = np->mcast_hops; + { + struct dst_entry *dst; + + if (optname == IPV6_UNICAST_HOPS) + val = np->hop_limit; + else + val = np->mcast_hops; + + dst = sk_dst_get(sk); + if (dst) { + if (val < 0) + val = dst_metric(dst, RTAX_HOPLIMIT); + if (val < 0) + val = ipv6_get_hoplimit(dst->dev); + dst_release(dst); + } + if (val < 0) + val = ipv6_devconf.hop_limit; break; + } case IPV6_MULTICAST_LOOP: val = np->mc_loop; |