selftests/bpf/test_tcp_check_syncookie: use temp netns for testing
Use temp netns instead of hard code name for testing in case the netns already exists. Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Lorenz Bauer <lmb@cloudflare.com> Link: https://lore.kernel.org/r/20220125081717.1260849-6-liuhangbin@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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@ -4,6 +4,7 @@
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# Copyright (c) 2019 Cloudflare
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set -eu
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readonly NS1="ns1-$(mktemp -u XXXXXX)"
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wait_for_ip()
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{
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@ -28,12 +29,12 @@ get_prog_id()
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ns1_exec()
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{
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ip netns exec ns1 "$@"
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ip netns exec ${NS1} "$@"
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}
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setup()
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{
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ip netns add ns1
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ip netns add ${NS1}
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ns1_exec ip link set lo up
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ns1_exec sysctl -w net.ipv4.tcp_syncookies=2
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