linux.git/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c, branch master

selftests/bpf: Add test case for different expected_attach_type

2025-09-27T13:24:27Z

Add a small test case which adds two programs - one calling the other through a tailcall - and check that BPF rejects them in case of different expected_attach_type values: # ./vmtest.sh -- ./test_progs -t xdp_devmap [...] #641/1 xdp_devmap_attach/DEVMAP with programs in entries:OK #641/2 xdp_devmap_attach/DEVMAP with frags programs in entries:OK #641/3 xdp_devmap_attach/Verifier check of DEVMAP programs:OK #641/4 xdp_devmap_attach/DEVMAP with programs in entries on veth:OK #641 xdp_devmap_attach:OK Summary: 2/4 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/r/20250926171201.188490-2-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov

selftests/bpf: Adjust data size to have ETH_HLEN

2025-01-29T16:51:51Z

The function bpf_test_init() now returns an error if user_size (.data_size_in) is less than ETH_HLEN, causing the tests to fail. Adjust the data size to ensure it meets the requirement of ETH_HLEN. Signed-off-by: Shigeru Yoshida Signed-off-by: Martin KaFai Lau Link: https://patch.msgid.link/20250121150643.671650-2-syoshida@redhat.com Signed-off-by: Alexei Starovoitov

bpf: selftests: send packet to devmap redirect XDP

2024-10-02T20:51:43Z

The current xdp_devmap_attach test attaches a program that redirects to another program via devmap. It is, however, never executed, so do that to catch any bugs that might occur during execution. Also, execute the same for a veth pair so that we also cover the non-generic path. Warning: Running this without the bugfix in this series will likely crash your system. Signed-off-by: Florian Kauer Reviewed-by: Toke Høiland-Jørgensen Link: https://lore.kernel.org/r/20240911-devel-koalo-fix-ingress-ifindex-v4-2-5c643ae10258@linutronix.de Signed-off-by: Martin KaFai Lau

selftests/bpf: Use bpf_{btf,link,map,prog}_get_info_by_fd()

2023-02-16T23:32:46Z

Use the new type-safe wrappers around bpf_obj_get_info_by_fd(). Fix a prog/map mixup in prog_holds_map(). Signed-off-by: Ilya Leoshkevich Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20230214231221.249277-6-iii@linux.ibm.com

selftests/bpf: Do not export subtest as standalone test

2022-02-08T20:17:34Z

Two subtests in ksyms_module.c are not qualified as static, so these subtests are exported as standalone tests in tests.h and lead to confusion for the output of "./test_progs -t ksyms_module". By using the following command ... grep "^void $serial_$\?test_[a-zA-Z0-9_]\+($void$\?)" \ tools/testing/selftests/bpf/prog_tests/*.c | \ awk -F : '{print $1}' | sort | uniq -c | awk '$1 != 1' ... one finds out that other tests also have a similar problem, so fix these tests by marking subtests in these tests as static. Signed-off-by: Hou Tao Signed-off-by: Daniel Borkmann Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20220208065444.648778-1-houtao1@huawei.com

selftests/bpf: Redo the switch to new libbpf XDP APIs

2022-02-03T15:32:25Z

Switch to using new bpf_xdp_*() APIs across all selftests. Take advantage of a more straightforward and user-friendly semantics of old_prog_fd (0 means "don't care") in few places. This is a redo of 544356524dd6 ("selftests/bpf: switch to new libbpf XDP APIs"), which was previously reverted to minimize conflicts during bpf and bpf-next tree merge. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Reviewed-by: Quentin Monnet Link: https://lore.kernel.org/bpf/20220202225916.3313522-6-andrii@kernel.org

selftests, bpf: Do not yet switch to new libbpf XDP APIs

2022-01-24T22:02:29Z

Revert commit 544356524dd6 ("selftests/bpf: switch to new libbpf XDP APIs") for now given this will heavily conflict with 4b27480dcaa7 ("bpf/selftests: convert xdp_link test to ASSERT_* macros") upon merge. Andrii agreed to redo the conversion cleanly after trees merged. Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Acked-by: Andrii Nakryiko

bpf: selftests: add CPUMAP/DEVMAP selftests for xdp frags

2022-01-21T22:14:03Z

Verify compatibility checks attaching a XDP frags program to a CPUMAP/DEVMAP Acked-by: Toke Hoiland-Jorgensen Acked-by: John Fastabend Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/d94b4d35adc1e42c9ca5004e6b2cdfd75992304d.1642758637.git.lorenzo@kernel.org Signed-off-by: Alexei Starovoitov

selftests/bpf: switch to new libbpf XDP APIs

2022-01-21T05:22:02Z

Switch to using new bpf_xdp_*() APIs across all selftests. Take advantage of a more straightforward and user-friendly semantics of old_prog_fd (0 means "don't care") in few places. Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20220120061422.2710637-4-andrii@kernel.org Signed-off-by: Alexei Starovoitov

selftests/bpf: Normalize selftest entry points

2021-10-25T21:45:45Z

Ensure that all test entry points are global void functions with no input arguments. Mark few subtest entry points as static. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20211022223228.99920-2-andrii@kernel.org