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selftests/bpf: Cover skb metadata access after bpf_skb_change_proto
authorJakub Sitnicki <jakub@cloudflare.com>
Wed, 5 Nov 2025 20:19:53 +0000 (21:19 +0100)
committerMartin KaFai Lau <martin.lau@kernel.org>
Mon, 10 Nov 2025 18:52:33 +0000 (10:52 -0800)
commitd2c5cca3fb58f96732e1dfd19e36b43e4e54d214
tree8934d992b5ebd34679e4952f0a48a9ac046c6818tree | snapshot
parent85d454afef612f880c69cb39a7d74772a24411d3commit | diff
selftests/bpf: Cover skb metadata access after bpf_skb_change_proto

Add a test to verify that skb metadata remains accessible after calling
bpf_skb_change_proto(), which modifies packet headroom to accommodate
different IP header sizes.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-16-5ceb08a9b37b@cloudflare.com
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c diff | blob | blame | history
tools/testing/selftests/bpf/progs/test_xdp_meta.c diff | blob | blame | history
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