kernel/tools/testing/selftests/bpf/progs/test_skb_ctx.c, branch linux-6.2.y

selftests/bpf: Fix non-strict SEC() program sections

2021-11-07T16:34:23Z

Fix few more SEC() definitions that were previously missed. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Dave Marchevsky Link: https://lore.kernel.org/bpf/20211103220845.2676888-9-andrii@kernel.org

selftests/bpf: Remove SEC("version") from test progs

2021-10-08T05:01:56Z

Since commit 6c4fc209fcf9d ("bpf: remove useless version check for prog load") these "version" sections, which result in bpf_attr.kern_version being set, have been unnecessary. Remove them so that it's obvious to folks using selftests as a guide that "modern" BPF progs don't need this section. Signed-off-by: Dave Marchevsky Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20211007231234.2223081-1-davemarchevsky@fb.com

selftests/bpf: Test new __sk_buff field hwtstamp

2021-09-10T21:20:13Z

Analogous to the gso_segs selftests introduced in commit d9ff286a0f59 ("bpf: allow BPF programs access skb_shared_info->gso_segs field"). Signed-off-by: Vadim Fedorenko Signed-off-by: Daniel Borkmann Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20210909220409.8804-3-vfedorenko@novek.ru

bpf: Permit ingress_ifindex in bpf_prog_test_run_xattr

2021-09-07T23:55:32Z

bpf_prog_test_run_xattr takes a struct __sk_buff, but did not permit that __skbuff to include an nonzero ingress_ifindex. This patch updates to allow ingress_ifindex, convert the __sk_buff field to sk_buff (skb_iif) and back, and tests that the value is present from on BPF program side. The test sets an unlikely distinct value for ingress_ifindex (11) from ifindex (1), which is in line with the rest of the synthetic field tests. Adding this support allows testing BPF that operates differently on incoming and outgoing skbs by discriminating on this field. Signed-off-by: Neil Spring Signed-off-by: Andrii Nakryiko Acked-by: John Fastabend Link: https://lore.kernel.org/bpf/20210831033356.1459316-1-ntspring@fb.com

selftests/bpf: Test new __sk_buff field gso_size

2020-03-04T00:23:59Z

Analogous to the gso_segs selftests introduced in commit d9ff286a0f59 ("bpf: allow BPF programs access skb_shared_info->gso_segs field"). Signed-off-by: Willem de Bruijn Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20200303200503.226217-4-willemdebruijn.kernel@gmail.com

selftests: Use consistent include paths for libbpf

2020-01-21T00:37:45Z

Fix all selftests to include libbpf header files with the bpf/ prefix, to be consistent with external users of the library. Also ensure that all includes of exported libbpf header files (those that are exported on 'make install' of the library) use bracketed includes instead of quoted. To not break the build, keep the old include path until everything has been changed to the new one; a subsequent patch will remove that. Fixes: 6910d7d3867a ("selftests/bpf: Ensure bpf_helper_defs.h are taken from selftests dir") Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/157952560568.1683545.9649335788846513446.stgit@toke.dk

bpf: Allow to change skb mark in test_run

2019-12-19T01:05:58Z

allow to pass skb's mark field into bpf_prog_test_run ctx for BPF_PROG_TYPE_SCHED_CLS prog type. that would allow to test bpf programs which are doing decision based on this field Signed-off-by: Nikita V. Shirokov Signed-off-by: Alexei Starovoitov

selftests/bpf: Test wire_len/gso_segs in BPF_PROG_TEST_RUN

2019-12-13T23:26:53Z

Make sure we can pass arbitrary data in wire_len/gso_segs. Signed-off-by: Stanislav Fomichev Signed-off-by: Alexei Starovoitov Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20191213223028.161282-2-sdf@google.com

selftests: bpf: Add selftest for __sk_buff tstamp

2019-10-15T23:24:26Z

Make sure BPF_PROG_TEST_RUN accepts tstamp and exports any modifications that BPF program does. Signed-off-by: Stanislav Fomichev Signed-off-by: Alexei Starovoitov Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20191015183125.124413-2-sdf@google.com

selftests: bpf: add selftest for __sk_buff context in BPF_PROG_TEST_RUN

2019-04-11T08:21:41Z

Simple test that sets cb to {1,2,3,4,5} and priority to 6, runs bpf program that fails if cb is not what we expect and increments cb[i] and priority. When the test finishes, we check that cb is now {2,3,4,5,6} and priority is 7. We also test the sanity checks: * ctx_in is provided, but ctx_size_in is zero (same for ctx_out/ctx_size_out) * unexpected non-zero fields in __sk_buff return EINVAL Signed-off-by: Stanislav Fomichev Acked-by: Martin KaFai Lau Signed-off-by: Daniel Borkmann