Hi!
> 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.
> +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 1 failed"
> + exit 1
> + fi
> + fi
> +}
> diff --git a/testcases/kernel/containers/netns/paripv6.sh
> b/testcases/kernel/containers/netns/paripv6.sh
> index ac8ee57..25d780a 100755
> --- a/testcases/kernel/containers/netns/paripv6.sh
> +++ b/testcases/kernel/containers/netns/paripv6.sh
> @@ -55,6 +55,8 @@ status=0
> else
> debug "INFO: vnet0 = $vnet0 , vnet1 = $vnet1"
> fi
> + enable_veth_ipv6 $vnet0
> + enable_veth_ipv6 $vnet1
>
>
> ifconfig $vnet0 $IP1/24 up > /dev/null 2>&1
You should restore the system to previous state when the test finishes.
Can we set disable_ipv6 back if it was changed?
--
Cyril Hrubis
[email protected]
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