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567766954b
Simple test for crash involving multicast loopback and stale dst. Reuse exising NAT46 program. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250610001245.1981782-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
15 lines
598 B
Bash
Executable file
15 lines
598 B
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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NS="ns-peer-$(mktemp -u XXXXXX)"
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ip netns add "${NS}"
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ip -netns "${NS}" link set lo up
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ip -netns "${NS}" route add default via 127.0.0.2 dev lo
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tc -n "${NS}" qdisc add dev lo ingress
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tc -n "${NS}" filter add dev lo ingress prio 4 protocol ip \
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bpf object-file nat6to4.bpf.o section schedcls/egress4/snat4 direct-action
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ip netns exec "${NS}" \
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bash -c 'echo 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789abc | socat - UDP4-DATAGRAM:224.1.0.1:6666,ip-multicast-loop=1'
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