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selftests: net: disable rp_filter after namespace initialization 

Some distributions enable rp_filter globally by default. To ensure consistent
behavior across environments, we explicitly disable it in several test cases.

This patch moves the rp_filter disabling logic to immediately after the
network namespace is initialized. With this change, individual test cases
with creating namespace via setup_ns no longer need to disable rp_filter
again.

This helps avoid redundancy and ensures test consistency.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250508081910.84216-2-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Hangbin Liu 2025-05-08 08:19:05 +00:00 committed by Jakub Kicinski
parent c14e1ecefd
commit ce17831f8e
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/net/lib.sh
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@ -217,6 +217,8 @@ setup_ns()
return $ksft_skip
fi
ip -n "${!ns_name}" link set lo up
ip netns exec "${!ns_name}" sysctl -wq net.ipv4.conf.all.rp_filter=0
ip netns exec "${!ns_name}" sysctl -wq net.ipv4.conf.default.rp_filter=0
ns_list+=("${!ns_name}")
done
NS_LIST+=("${ns_list[@]}")