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Commit aca071c1c1c07bcc0b100b7c58e59790d6be6a69

Authored by Changli Gao
Committed by David S. Miller
1 parent 3d04ebb6ab

netfilter: xt_hashlimit: use proto_ports_offset() to support AH message 

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Showing 1 changed file with 5 additions and 10 deletions Side-by-side Diff

net/netfilter/xt_hashlimit.c
Diff comments   View file @ aca071c
... ... @@ -448,6 +448,7 @@
448 448 {
449 449 __be16 _ports[2], *ports;
450 450 u8 nexthdr;
  451 + int poff;
451 452  
452 453 memset(dst, 0, sizeof(*dst));
453 454  
454 455  
455 456  
... ... @@ -492,19 +493,13 @@
492 493 return 0;
493 494 }
494 495  
495   - switch (nexthdr) {
496   - case IPPROTO_TCP:
497   - case IPPROTO_UDP:
498   - case IPPROTO_UDPLITE:
499   - case IPPROTO_SCTP:
500   - case IPPROTO_DCCP:
501   - ports = skb_header_pointer(skb, protoff, sizeof(_ports),
  496 + poff = proto_ports_offset(nexthdr);
  497 + if (poff >= 0) {
  498 + ports = skb_header_pointer(skb, protoff + poff, sizeof(_ports),
502 499 &_ports);
503   - break;
504   - default:
  500 + } else {
505 501 _ports[0] = _ports[1] = 0;
506 502 ports = _ports;
507   - break;
508 503 }
509 504 if (!ports)
510 505 return -1;