diff options
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/route.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 6d506230622..4a8cb041f07 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -459,6 +459,21 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr, return rt; } +static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, struct in6_addr *daddr) +{ + struct rt6_info *rt = ip6_rt_copy(ort); + if (rt) { + ipv6_addr_copy(&rt->rt6i_dst.addr, daddr); + rt->rt6i_dst.plen = 128; + rt->rt6i_flags |= RTF_CACHE; + if (rt->rt6i_flags & RTF_REJECT) + rt->u.dst.error = ort->u.dst.error; + rt->u.dst.flags |= DST_HOST; + rt->rt6i_nexthop = neigh_clone(ort->rt6i_nexthop); + } + return rt; +} + #define BACKTRACK() \ if (rt == &ip6_null_entry && strict) { \ while ((fn = fn->parent) != NULL) { \ @@ -1240,17 +1255,11 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr, ip6_ins_rt(nrt, NULL, NULL, NULL); } else { - nrt = ip6_rt_copy(rt); - if (nrt == NULL) + nrt = rt6_alloc_clone(rt, daddr); + if (!nrt) goto out; - ipv6_addr_copy(&nrt->rt6i_dst.addr, daddr); - nrt->rt6i_dst.plen = 128; - nrt->u.dst.flags |= DST_HOST; - nrt->rt6i_nexthop = neigh_clone(rt->rt6i_nexthop); dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires); - nrt->rt6i_flags |= RTF_DYNAMIC|RTF_CACHE|RTF_EXPIRES; - if (nrt->rt6i_flags & RTF_REJECT) - nrt->u.dst.error = rt->u.dst.error; + nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES; nrt->u.dst.metrics[RTAX_MTU-1] = pmtu; if (allfrag) nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG; |