diff options
Diffstat (limited to 'net/ipv6/ip6_input.c')
| -rw-r--r-- | net/ipv6/ip6_input.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 1b925ecb26e9..126ae3aa67e1 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -362,6 +362,7 @@ void ip6_protocol_deliver_rcu(struct net *net, struct sk_buff *skb, int nexthdr, const struct inet6_protocol *ipprot; struct inet6_dev *idev; unsigned int nhoff; + SKB_DR(reason); bool raw; /* @@ -421,12 +422,16 @@ resubmit_final: if (ipv6_addr_is_multicast(&hdr->daddr) && !ipv6_chk_mcast_addr(dev, &hdr->daddr, &hdr->saddr) && - !ipv6_is_mld(skb, nexthdr, skb_network_header_len(skb))) + !ipv6_is_mld(skb, nexthdr, skb_network_header_len(skb))) { + SKB_DR_SET(reason, IP_INADDRERRORS); goto discard; + } } if (!(ipprot->flags & INET6_PROTO_NOPOLICY) && - !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) + !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) { + SKB_DR_SET(reason, XFRM_POLICY); goto discard; + } ret = INDIRECT_CALL_2(ipprot->handler, tcp_v6_rcv, udpv6_rcv, skb); @@ -452,8 +457,11 @@ resubmit_final: IPSTATS_MIB_INUNKNOWNPROTOS); icmpv6_send(skb, ICMPV6_PARAMPROB, ICMPV6_UNK_NEXTHDR, nhoff); + SKB_DR_SET(reason, IP_NOPROTO); + } else { + SKB_DR_SET(reason, XFRM_POLICY); } - kfree_skb(skb); + kfree_skb_reason(skb, reason); } else { __IP6_INC_STATS(net, idev, IPSTATS_MIB_INDELIVERS); consume_skb(skb); @@ -463,7 +471,7 @@ resubmit_final: discard: __IP6_INC_STATS(net, idev, IPSTATS_MIB_INDISCARDS); - kfree_skb(skb); + kfree_skb_reason(skb, reason); } static int ip6_input_finish(struct net *net, struct sock *sk, struct sk_buff *skb) |