In some linux distributions, such as RHEL7U0RC1, when we create a veth pair
by "ip link add type veth", the ipv6 address for veth interfaces won't be
automatically generated, so the "par_chld_ipv6" test case in containers test
will fail. This is because in these distirbutions, the "/proc/sys/net/ipv6/
conf/veth*/disable_ipv6" is true for veth interfaces. Please see kernel
"Documentation/networking/ip-sysctl.txt" for more detailed information.
In this patch, we will enable IPv6 address autoconfiguration for veth interfaces
if disabled.
Signed-off-by: Xiaoguang Wang <wangxg.f...@cn.fujitsu.com>
---
testcases/kernel/containers/netns/childipv6.sh | 8 ++++++
testcases/kernel/containers/netns/initialize.sh | 33 +++++++++++++++++++++++++
testcases/kernel/containers/netns/paripv6.sh | 5 ++++
3 files changed, 46 insertions(+)
diff --git a/testcases/kernel/containers/netns/childipv6.sh
b/testcases/kernel/containers/netns/childipv6.sh
index 073c2be..ccc43d6 100755
--- a/testcases/kernel/containers/netns/childipv6.sh
+++ b/testcases/kernel/containers/netns/childipv6.sh
@@ -45,6 +45,9 @@ status=0
# waiting for the virt-eth devname and IPv6 addr from parent
vnet1=`cat /tmp/FIFO2`
+ enable_veth_ipv6 $vnet1
+ vnet1_orig_status=$?
+
# Assigning the dev addresses
ifconfig $vnet1 $IP2/24 up > /dev/null 2>&1
ifconfig lo up
@@ -75,6 +78,11 @@ status=0
status=1
fi
echo $status > /tmp/FIFO6
+
+ if [ $vnet1_orig_status -eq 1 ];then
+ disable_veth_ipv6 $vnet1
+ fi
+
debug "INFO: Done with executing child script $0"
cleanup $sshpid $vnet1
exit $status
diff --git a/testcases/kernel/containers/netns/initialize.sh
b/testcases/kernel/containers/netns/initialize.sh
index a2c3f47..5333e7b 100755
--- a/testcases/kernel/containers/netns/initialize.sh
+++ b/testcases/kernel/containers/netns/initialize.sh
@@ -114,3 +114,36 @@ create_veth()
ip link show > /tmp/net2
eval `diff /tmp/net1 /tmp/net2 | awk -F": " '/^> [0-9]*:/ { print "dev"
i+0 "=" $2; i++ }'`
}
+
+# return 1 if disabled originally, 0 for enabled originally.
+enable_veth_ipv6()
+{
+ local veth=$1
+ local veth_ipv6_status=$(cat /proc/sys/net/ipv6/conf/$veth/disable_ipv6)
+ if [ -z "$veth_ipv6_status" ];then
+ tst_resm TFAIL "Error: cat /proc/sys/net/ipv6/conf/$veth/disable_ipv6"\
+ "failed"
+ exit 1
+ elif [ "$veth_ipv6_status" = "1" ]; then
+ echo 0 > /proc/sys/net/ipv6/conf/$veth/disable_ipv6
+ if [ $? -ne 0 ];then
+ tst_resm TFAIL "Error: set " \
+ "/proc/sys/net/ipv6/conf/$veth/disable_ipv6 to 0 failed"
+ exit 1
+ fi
+ return 1
+ else
+ return 0
+ fi
+}
+
+disable_veth_ipv6()
+{
+ local veth=$1
+ echo 1 > /proc/sys/net/ipv6/conf/$veth/disable_ipv6
+ if [ $? -ne 0 ];then
+ tst_resm TFAIL "Error: set " \
+ "/proc/sys/net/ipv6/conf/$veth/disable_ipv6 to 1 failed"
+ exit 1
+ fi
+}
diff --git a/testcases/kernel/containers/netns/paripv6.sh
b/testcases/kernel/containers/netns/paripv6.sh
index ac8ee57..2b02ab2 100755
--- a/testcases/kernel/containers/netns/paripv6.sh
+++ b/testcases/kernel/containers/netns/paripv6.sh
@@ -56,6 +56,8 @@ status=0
debug "INFO: vnet0 = $vnet0 , vnet1 = $vnet1"
fi
+ enable_veth_ipv6 $vnet0
+ vnet0_orig_status=$?
ifconfig $vnet0 $IP1/24 up > /dev/null 2>&1
route add -host $IP2 dev $vnet0
@@ -89,5 +91,8 @@ status=0
status=$ret
fi
+ if [ $vnet0_orig_status -eq 1 ];then
+ disable_veth_ipv6 $vnet0
+ fi
debug "INFO: Done with executing parent script $0 "
exit $status
--
1.8.2.1
------------------------------------------------------------------------------
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