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authorGiuseppe Longo <giuseppelng@gmail.com>2014-08-22 11:16:31 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2014-08-24 15:29:47 +0200
commitd579c3cba69ec958ca93216a77f15acfa1487e09 (patch)
treef78711526ba6e99e9dcd8dd9c792f192cf8240ba /m4
parentb772c3f24f75e586e406675e4b0b79eabfe3375e (diff)
nft: compare layer 4 protocol in first place
Currently the protocol is tested after the ip address, this fixes the order testing the protocol before the ip address. Now the code generated is incorrect: ip filter INPUT 16 [ payload load 4b @ network header + 12 => reg 1 ] [ cmp eq reg 1 0x0100a8c0 ] [ payload load 1b @ network header + 9 => reg 1 ] [ cmp eq reg 1 0x00000006 ] [ match name tcp rev 0 ] [ match name conntrack rev 3 ] [ counter pkts 0 bytes 0 ] [ immediate reg 0 accept ] With this patch, the code generated is: ip filter INPUT 16 [ payload load 1b @ network header + 9 => reg 1 ] [ cmp eq reg 1 0x00000006 ] [ payload load 4b @ network header + 12 => reg 1 ] [ cmp eq reg 1 0x0100a8c0 ] [ bitwise reg 1 = (reg=1 & 0xffffffff ) ^ 0x00000000 ] [ match name tcp rev 0 ] [ match name conntrack rev 3 ] [ counter pkts 0 bytes 0 ] [ immediate reg 0 accept ] Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'm4')
0 files changed, 0 insertions, 0 deletions