diff options
| author | Lorenz Bauer <lmb@cloudflare.com> | 2021-03-03 10:18:13 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-03-04 19:11:29 -0800 |
| commit | 7c32e8f8bc33a5f4b113a630857e46634e3e143b (patch) | |
| tree | 460341732415db4d3ca17d9f44d4cc255148ff00 /net/core/filter.c | |
| parent | 607b9cc92bd7208338d714a22b8082fe83bcb177 (diff) | |
bpf: Add PROG_TEST_RUN support for sk_lookup programs
Allow to pass sk_lookup programs to PROG_TEST_RUN. User space
provides the full bpf_sk_lookup struct as context. Since the
context includes a socket pointer that can't be exposed
to user space we define that PROG_TEST_RUN returns the cookie
of the selected socket or zero in place of the socket pointer.
We don't support testing programs that select a reuseport socket,
since this would mean running another (unrelated) BPF program
from the sk_lookup test handler.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210303101816.36774-3-lmb@cloudflare.com
Diffstat (limited to 'net/core/filter.c')
| -rw-r--r-- | net/core/filter.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 13bcf248ee7b..a526db494c62 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -10457,6 +10457,7 @@ static u32 sk_lookup_convert_ctx_access(enum bpf_access_type type, } const struct bpf_prog_ops sk_lookup_prog_ops = { + .test_run = bpf_prog_test_run_sk_lookup, }; const struct bpf_verifier_ops sk_lookup_verifier_ops = { |