From e02bd59c4009bedba89da88b199e715441975439 Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Fri, 10 Mar 2017 18:13:51 +0100 Subject: exthdr: Implement existence check This allows to check for existence of an IPv6 extension or TCP option header by using the following syntax: | exthdr frag exists | tcpopt window exists Signed-off-by: Phil Sutter Signed-off-by: Pablo Neira Ayuso --- tests/py/inet/tcpopt.t | 3 +++ tests/py/inet/tcpopt.t.payload.inet | 14 ++++++++++++++ 2 files changed, 17 insertions(+) (limited to 'tests/py/inet') diff --git a/tests/py/inet/tcpopt.t b/tests/py/inet/tcpopt.t index 59452b48..a42ecd25 100644 --- a/tests/py/inet/tcpopt.t +++ b/tests/py/inet/tcpopt.t @@ -35,3 +35,6 @@ tcp option eol left 1;fail tcp option eol left 1;fail tcp option sack window;fail tcp option sack window 1;fail + +tcp option window exists;ok +tcp option window missing;ok diff --git a/tests/py/inet/tcpopt.t.payload.inet b/tests/py/inet/tcpopt.t.payload.inet index 12deab8c..0d14e779 100644 --- a/tests/py/inet/tcpopt.t.payload.inet +++ b/tests/py/inet/tcpopt.t.payload.inet @@ -179,3 +179,17 @@ inet test-inet input [ cmp eq reg 1 0x00000006 ] [ exthdr load tcpopt 4b @ 8 + 6 => reg 1 ] [ cmp eq reg 1 0x01000000 ] + +# tcp option window exists +inet test-inet input + [ meta load l4proto => reg 1 ] + [ cmp eq reg 1 0x00000006 ] + [ exthdr load tcpopt 1b @ 3 + 0 => reg 1 ] + [ cmp eq reg 1 0x00000001 ] + +# tcp option window missing +inet test-inet input + [ meta load l4proto => reg 1 ] + [ cmp eq reg 1 0x00000006 ] + [ exthdr load tcpopt 1b @ 3 + 0 => reg 1 ] + [ cmp eq reg 1 0x00000000 ] -- cgit v1.2.3