diff mbox series

[net,2/2] selftests: icmp_redirect: IPv6 PMTU info should be cleared after redirect

Message ID 20210707081530.1107289-3-liuhangbin@gmail.com
State New
Headers show
Series Fix selftests icmp_redirect.sh failures | expand

Commit Message

Hangbin Liu July 7, 2021, 8:15 a.m. UTC
After redirecting, it's already a new path. So the old PMTU info should
be cleared. The IPv6 test "mtu exception plus redirect" should only
has redirect info without old PMTU.

The IPv4 test can not be changed because of legacy.

Fixes: ec8105352869 ("selftests: Add redirect tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 tools/testing/selftests/net/icmp_redirect.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

David Ahern July 7, 2021, 2:51 p.m. UTC | #1
On 7/7/21 2:15 AM, Hangbin Liu wrote:
> After redirecting, it's already a new path. So the old PMTU info should
> be cleared. The IPv6 test "mtu exception plus redirect" should only
> has redirect info without old PMTU.
> 
> The IPv4 test can not be changed because of legacy.
> 
> Fixes: ec8105352869 ("selftests: Add redirect tests")
> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
> ---
>  tools/testing/selftests/net/icmp_redirect.sh | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh
> index 3a111ac1edc3..ecbf57f264ed 100755
> --- a/tools/testing/selftests/net/icmp_redirect.sh
> +++ b/tools/testing/selftests/net/icmp_redirect.sh
> @@ -313,9 +313,10 @@ check_exception()
>  	fi
>  	log_test $? 0 "IPv4: ${desc}"
>  
> -	if [ "$with_redirect" = "yes" ]; then
> +	# No PMTU info for test "redirect" and "mtu exception plus redirect"
> +	if [ "$with_redirect" = "yes" ] && [ "$desc" != "redirect exception plus mtu" ]; then
>  		ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
> -		grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0.*${mtu}"
> +		grep -v "mtu" | grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0"
>  	elif [ -n "${mtu}" ]; then
>  		ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
>  		grep -q "${mtu}"
> 

Reviewed-by: David Ahern <dsahern@kernel.org>
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh
index 3a111ac1edc3..ecbf57f264ed 100755
--- a/tools/testing/selftests/net/icmp_redirect.sh
+++ b/tools/testing/selftests/net/icmp_redirect.sh
@@ -313,9 +313,10 @@  check_exception()
 	fi
 	log_test $? 0 "IPv4: ${desc}"
 
-	if [ "$with_redirect" = "yes" ]; then
+	# No PMTU info for test "redirect" and "mtu exception plus redirect"
+	if [ "$with_redirect" = "yes" ] && [ "$desc" != "redirect exception plus mtu" ]; then
 		ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
-		grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0.*${mtu}"
+		grep -v "mtu" | grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0"
 	elif [ -n "${mtu}" ]; then
 		ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
 		grep -q "${mtu}"