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| author | Jakub Sitnicki <jakub@cloudflare.com> | 2025-08-14 11:59:29 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2025-08-18 10:29:42 -0700 |
| commit | 0e74eb4d57f00e6103ac23ce2312766c25ad88f6 (patch) | |
| tree | 0111af7f9e6a13efc354f93a1d2f5d26cd9edd29 /tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c | |
| parent | bpf: Enable read/write access to skb metadata through a dynptr (diff) | |
| download | linux-0e74eb4d57f00e6103ac23ce2312766c25ad88f6.tar.gz linux-0e74eb4d57f00e6103ac23ce2312766c25ad88f6.zip | |
selftests/bpf: Cover verifier checks for skb_meta dynptr type
dynptr for skb metadata behaves the same way as the dynptr for skb data
with one exception - writes to skb_meta dynptr don't invalidate existing
skb and skb_meta slices.
Duplicate those the skb dynptr tests which we can, since
bpf_dynptr_from_skb_meta kfunc can be called only from TC BPF, to cover the
skb_meta dynptr verifier checks.
Also add a couple of new tests (skb_data_valid_*) to ensure we don't
invalidate the slices in the mentioned case, which are specific to skb_meta
dynptr.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Jesse Brandeburg <jbrandeburg@cloudflare.com>
Link: https://patch.msgid.link/20250814-skb-metadata-thru-dynptr-v7-3-8a39e636e0fb@cloudflare.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c')
0 files changed, 0 insertions, 0 deletions