From 619d1826269b4be5c992bec0029bbfcc823d663d Mon Sep 17 00:00:00 2001 From: David Ahern Date: Fri, 5 Apr 2019 16:30:37 -0700 Subject: [PATCH] ipv4: Handle ipv6 gateway in fib_detect_death Update fib_detect_death to handle an ipv6 gateway. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv4/fib_semantics.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index dd95725c318e..e5a6d431bfab 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -457,10 +457,18 @@ static int fib_detect_death(struct fib_info *fi, int order, struct fib_info **last_resort, int *last_idx, int dflt) { + const struct fib_nh_common *nhc = fib_info_nhc(fi, 0); struct neighbour *n; int state = NUD_NONE; - n = neigh_lookup(&arp_tbl, &fi->fib_nh[0].fib_nh_gw4, fi->fib_dev); + if (likely(nhc->nhc_gw_family == AF_INET)) + n = neigh_lookup(&arp_tbl, &nhc->nhc_gw.ipv4, nhc->nhc_dev); + else if (nhc->nhc_gw_family == AF_INET6) + n = neigh_lookup(ipv6_stub->nd_tbl, &nhc->nhc_gw.ipv6, + nhc->nhc_dev); + else + n = NULL; + if (n) { state = n->nud_state; neigh_release(n); -- 2.30.2