[libvirt] [TCK][PATCH] nwfilter: convert ctstate to state

[Stefan Berger]

iptables version 1.4.16 and later automatically convert -m state --state ...
to -m conntrack --ctstate ... In the test cases we will then only see 'ctstate'
and convert that back to the older 'state' before comparing actual against
expected output.

Signed-off-by: Stefan Berger <stefanb at linux.vnet.ibm.com>

---
 scripts/nwfilter/nwfilter2vmtest.sh |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Index: libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh
===================================================================
--- libvirt-tck.orig/scripts/nwfilter/nwfilter2vmtest.sh
+++ libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh
@@ -32,6 +32,9 @@ FLAG_FORCE_CLEAN="$((1<<5))"
 # netfilter at some point. We probe for it.
 IPTABLES_CTRDIR_CORRECTED=0
 
+# starting with iptables v1.4.16 -m state becomes -m ctstate
+IPTABLES_USE_CTSTATE=0
+
 failctr=0
 passctr=0
 attachfailctr=0
@@ -114,6 +117,16 @@ probeIptablesCtdir() {
   fi
 }
 
+probeIptablesCtstate() {
+  rev=$(iptables --version | \
+        sed -n 's/.*v\([[:digit:]].\)/\1/p' |
+        gawk -F. '{print $1 * 1000000 + $2 * 1000 + $3 }')
+  # 1.4.16 or later uses ctstate
+  if [ $rev -ge 1004016 ]; then
+    IPTABLES_USE_CTSTATE=1
+  fi
+}
+
 checkExpectedOutput() {
   xmlfile="$1"
   fwallfile="$2"
@@ -181,6 +194,11 @@ checkExpectedOutput() {
           sed -i "s/ctdir _REPLY/ctdir REPLY/" ${tmpfile}
         fi
 
+        if [ $IPTABLES_USE_CTSTATE -ne 0 ]; then
+          #change ctstate tback o state
+          sed -i "s/ctstate/state/" ${tmpfile}
+        fi
+
         diff -w ${tmpfile} ${tmpfile2} >/dev/null
 
         if [ $? -ne 0 ]; then
@@ -574,6 +592,7 @@ main() {
     exit 1;
   else
     probeIptablesCtdir
+    probeIptablesCtstate
   fi
 
   if [ $(($flags & $FLAG_TAP_TEST)) -ne 0 ]; then