qa: build unshared nfct environment

nssocket forks and change netns pre-establishd by ip(8), serves its
socket descriptor to parent via nssocket().  Since this socket is
isolated, it can be used to create regression tests for conntrack.

This also adds a conntrack event testcase as a first user.
A ct_echo_event.sh script is provided to build and run this test
automatically:

  # ./qa/ct_echo_event.sh
  make: Entering directory...
  ...debug output like:
      [NEW] tcp      6 2 SYN_SENT src=10.255.255.249 dst=10.255.255.250 sport...
   [UPDATE] tcp      6 2 SYN_RECV src=10.255.255.249 dst=10.255.255.250 sport...
  ...
  [DESTROY] icmp     1 src=10.255.255.249 dst=10.255.255.250 type=8 code=0...
  # echo $?
  0

Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 20 insertions, 0 deletions

diff --git a/qa/ct_echo_event.sh b/qa/ct_echo_event.sh
new file mode 100755
index 0000000..b4d7409
--- /dev/null
+++ b/qa/ct_echo_event.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+. `dirname $0`/nssocket_env.sh
+
+echo "---- TCP echo"
+pre_sync
+echo | nc -q 0 $VETH_CHILD_ADDR $DSTPORT
+post_sync
+
+echo "---- UDP echo"
+pre_sync
+echo | nc -q 0 -u $VETH_CHILD_ADDR $DSTPORT
+post_sync
+
+echo "---- ICMP echo"
+pre_sync
+ping -c 1 $VETH_CHILD_ADDR > /dev/null 2>&1
+post_sync
+
+fin