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authorHerbert Xu <herbert@gondor.apana.org.au>2005-12-14 02:14:27 -0500
committerDavid S. Miller <davem@sunset.davemloft.net>2006-01-03 16:10:31 -0500
commit89cee8b1cbb9dac40c92ef1968aea2b45f82fd18 (patch)
tree01049841b15a9c2f3f136710382c7e4c11c1b1e5 /net/ipv4/inetpeer.c
parentd5228a4f49db32d22a39c653281b527ef371129c (diff)
[IPV4]: Safer reassembly
Another spin of Herbert Xu's "safer ip reassembly" patch for 2.6.16. (The original patch is here: http://marc.theaimsgroup.com/?l=linux-netdev&m=112281936522415&w=2 and my only contribution is to have tested it.) This patch (optionally) does additional checks before accepting IP fragments, which can greatly reduce the possibility of reassembling fragments which originated from different IP datagrams. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Arthur Kepner <akepner@sgi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inetpeer.c')
-rw-r--r--net/ipv4/inetpeer.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 2fc3fd38924f..ce5fe3f74a3d 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -401,6 +401,7 @@ struct inet_peer *inet_getpeer(__u32 daddr, int create)
401 return NULL; 401 return NULL;
402 n->v4daddr = daddr; 402 n->v4daddr = daddr;
403 atomic_set(&n->refcnt, 1); 403 atomic_set(&n->refcnt, 1);
404 atomic_set(&n->rid, 0);
404 n->ip_id_count = secure_ip_id(daddr); 405 n->ip_id_count = secure_ip_id(daddr);
405 n->tcp_ts_stamp = 0; 406 n->tcp_ts_stamp = 0;
406 407