diff options
| author | Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> | 2024-10-09 12:12:09 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-10-10 18:01:52 -0700 |
| commit | d124d984c8a2d677e1cea6740a01ccdd0371a38d (patch) | |
| tree | b58ef040904b5fb94737ffe3135e6d14ea170106 /tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c | |
| parent | selftests/bpf: make xdp_cpumap_attach keep redirect prog attached (diff) | |
| download | linux-d124d984c8a2d677e1cea6740a01ccdd0371a38d.tar.gz linux-d124d984c8a2d677e1cea6740a01ccdd0371a38d.zip | |
selftests/bpf: check program redirect in xdp_cpumap_attach
xdp_cpumap_attach, in its current form, only checks that an xdp cpumap
program can be executed, but not that it performs correctly the cpu
redirect as configured by userspace (bpf_prog_test_run_opts will return
success even if the redirect program returns an error)
Add a check to ensure that the program performs the configured redirect
as well. The check is based on a global variable incremented by a
chained program executed only if the redirect program properly executes.
Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com>
Link: https://lore.kernel.org/r/20241009-convert_xdp_tests-v3-3-51cea913710c@bootlin.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c index d848fe96924e..3619239b01b7 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c @@ -12,6 +12,8 @@ struct { __uint(max_entries, 4); } cpu_map SEC(".maps"); +__u32 redirect_count = 0; + SEC("xdp") int xdp_redir_prog(struct xdp_md *ctx) { @@ -27,6 +29,9 @@ int xdp_dummy_prog(struct xdp_md *ctx) SEC("xdp/cpumap") int xdp_dummy_cm(struct xdp_md *ctx) { + if (bpf_get_smp_processor_id() == 0) + redirect_count++; + if (ctx->ingress_ifindex == IFINDEX_LO) return XDP_DROP; |