diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-04-19 11:56:15 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-05-02 23:30:35 +0200 |
| commit | 88993e0ce90f05a1b6e1b09a8dbbf41d6d4551b7 (patch) | |
| tree | 53c81710e64c14fbc7f2856d56257ecd0e38adf9 /tests/py/inet/tcp.t.payload | |
| parent | 2ffb2f44dc541c2ec3265ec80bf6be805cafcf80 (diff) | |
parser_bison: missing relational operation on flag list
Complete e6c32b2fa0b8 ("src: add negation match on singleton bitmask
value") which was missing comma-separated list of flags.
This patch provides a shortcut for:
tcp flags and fin,rst == 0
which allows to check for the packet whose fin and rst bits are unset:
# nft add rule x y tcp flags not fin,rst counter
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'tests/py/inet/tcp.t.payload')
| -rw-r--r-- | tests/py/inet/tcp.t.payload | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/py/inet/tcp.t.payload b/tests/py/inet/tcp.t.payload index 5eaf4090..da932b6d 100644 --- a/tests/py/inet/tcp.t.payload +++ b/tests/py/inet/tcp.t.payload @@ -701,3 +701,10 @@ inet [ payload load 1b @ transport header + 13 => reg 1 ] [ lookup reg 1 set __set%d ] +# tcp flags ! fin,rst +inet + [ meta load l4proto => reg 1 ] + [ cmp eq reg 1 0x00000006 ] + [ payload load 1b @ transport header + 13 => reg 1 ] + [ bitwise reg 1 = ( reg 1 & 0x00000005 ) ^ 0x00000000 ] + [ cmp eq reg 1 0x00000000 ] |