From: Guillaume Nault Date: Wed, 11 Nov 2020 15:05:35 +0000 (+0100) Subject: selftests: set conf.all.rp_filter=0 in bareudp.sh X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e865802357086b36632acf3e629f726f089a6769;p=linux.git selftests: set conf.all.rp_filter=0 in bareudp.sh When working on the rp_filter problem, I didn't realise that disabling it on the network devices didn't cover all cases: rp_filter could also be enabled globally in the namespace, in which case it would drop packets, even if the net device has rp_filter=0. Fixes: 1ccd58331f6f ("selftests: disable rp_filter when testing bareudp") Fixes: bbbc7aa45eef ("selftests: add test script for bareudp tunnels") Signed-off-by: Guillaume Nault Link: https://lore.kernel.org/r/f2d459346471f163b239aa9d63ce3e2ba9c62895.1605107012.git.gnault@redhat.com Signed-off-by: Jakub Kicinski --- diff --git a/tools/testing/selftests/net/bareudp.sh b/tools/testing/selftests/net/bareudp.sh index c2b9e990e5442..f366cadbc5e86 100755 --- a/tools/testing/selftests/net/bareudp.sh +++ b/tools/testing/selftests/net/bareudp.sh @@ -238,6 +238,8 @@ setup_overlay_ipv4() # The intermediate namespaces don't have routes for the reverse path, # as it will be handled by tc. So we need to ensure that rp_filter is # not going to block the traffic. + ip netns exec "${NS1}" sysctl -qw net.ipv4.conf.all.rp_filter=0 + ip netns exec "${NS2}" sysctl -qw net.ipv4.conf.all.rp_filter=0 ip netns exec "${NS1}" sysctl -qw net.ipv4.conf.default.rp_filter=0 ip netns exec "${NS2}" sysctl -qw net.ipv4.conf.default.rp_filter=0 }