diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2025-04-28 17:44:03 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2025-05-01 12:54:06 -0700 |
| commit | 3678331ca781aa1c15b2a2f3ad7bed5a61f716d1 (patch) | |
| tree | 8e70b2f3f16776735b46a9577b88b3a894df0512 /tools/testing/selftests/bpf/progs | |
| parent | 714070c4cb7a10ff57450a618a936775f3036245 (diff) | |
selftests/bpf: xdp_metadata: Check XDP_REDIRCT support for dev-bound progs
Improve xdp_metadata bpf selftest in order to check it is possible for a
XDP dev-bound program to perform XDP_REDIRECT into a DEVMAP but it is still
not allowed to attach a XDP dev-bound program to a DEVMAP entry.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Diffstat (limited to 'tools/testing/selftests/bpf/progs')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/xdp_metadata.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata.c b/tools/testing/selftests/bpf/progs/xdp_metadata.c index 31ca229bb3c0..09bb8a038d52 100644 --- a/tools/testing/selftests/bpf/progs/xdp_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c @@ -19,6 +19,13 @@ struct { __type(value, __u32); } prog_arr SEC(".maps"); +struct { + __uint(type, BPF_MAP_TYPE_DEVMAP); + __uint(key_size, sizeof(__u32)); + __uint(value_size, sizeof(struct bpf_devmap_val)); + __uint(max_entries, 1); +} dev_map SEC(".maps"); + extern int bpf_xdp_metadata_rx_timestamp(const struct xdp_md *ctx, __u64 *timestamp) __ksym; extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, @@ -95,4 +102,10 @@ int rx(struct xdp_md *ctx) return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS); } +SEC("xdp") +int redirect(struct xdp_md *ctx) +{ + return bpf_redirect_map(&dev_map, ctx->rx_queue_index, XDP_PASS); +} + char _license[] SEC("license") = "GPL"; |