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| author |   Denis V. Lunev <den@openvz.org> | 2008-10-08 10:31:44 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-10-08 10:53:30 -0700 |
| commit | 98b3377ca77a06a7bd75a444e9f7136e9bb5112e (patch) | |
| tree | 505224cfdd8791099c75b346df39e3a19e35a1a3 /net | |
| parent | ipv6: local dev is actually unused in ip6_fragment (diff) | |
| download | linux-dev-98b3377ca77a06a7bd75a444e9f7136e9bb5112e.tar.xz linux-dev-98b3377ca77a06a7bd75a444e9f7136e9bb5112e.zip | |
ipv6: consolidate error paths in ipv6_frag_rcv
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/reassembly.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 2eeadfa039cb..f4f62f086096 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -578,19 +578,12 @@ static int ipv6_frag_rcv(struct sk_buff *skb) IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS); /* Jumbo payload inhibits frag. header */ - if (hdr->payload_len==0) { - IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS); - icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, - skb_network_header_len(skb)); - return -1; - } + if (hdr->payload_len==0) + goto fail_hdr; + if (!pskb_may_pull(skb, (skb_transport_offset(skb) + - sizeof(struct frag_hdr)))) { - IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS); - icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, - skb_network_header_len(skb)); - return -1; - } + sizeof(struct frag_hdr)))) + goto fail_hdr; hdr = ipv6_hdr(skb); fhdr = (struct frag_hdr *)skb_transport_header(skb); @@ -624,6 +617,11 @@ static int ipv6_frag_rcv(struct sk_buff *skb) IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS); kfree_skb(skb); return -1; + +fail_hdr: + IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS); + icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb_network_header_len(skb)); + return -1; } static struct inet6_protocol frag_protocol = |