diff options
| author | Duncan Roe <duncan_roe@optusnet.com.au> | 2019-11-17 13:35:40 +1100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-11-21 15:03:16 +0100 |
| commit | 0b46c72d62ec596492e7277cea1b9f4fa6ed7078 (patch) | |
| tree | 942fb09a23b1b0879fd8471a1fff006228094d73 | |
| parent | 4d546fa824731c285a9d601e16a415c7e7269fc0 (diff) | |
src: Fix IPv4 checksum calculation in AF_BRIDGE packet buffer
Updated:
src/extra/pktbuff.c: If pktb was created in family AF_BRIDGE, then pktb->len
will include the bytes in the network header.
So set the IPv4 length to "tail - network_header"
rather than len
Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | src/extra/ipv4.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/extra/ipv4.c b/src/extra/ipv4.c index 0227b62..c03f23f 100644 --- a/src/extra/ipv4.c +++ b/src/extra/ipv4.c @@ -117,7 +117,7 @@ int nfq_ip_mangle(struct pkt_buff *pktb, unsigned int dataoff, return 0; /* fix IP hdr checksum information */ - iph->tot_len = htons(pktb->len); + iph->tot_len = htons(pktb->tail - pktb->network_header); nfq_ip_set_checksum(iph); return 1; |