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libbpf: add support for ctx_{size, }_{in, out} in BPF_PROG_TEST_RUN

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Support recently introduced input/output context for test runs.
We extend only bpf_prog_test_run_xattr. bpf_prog_test_run is
unextendable and left as is.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Stanislav Fomichev
2019-04-09 11:49:10 -07:00
committed by Daniel Borkmann
parent b0b9395d86
commit 5e903c656b
3 changed files with 17 additions and 0 deletions
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7
tools/include/uapi/linux/bpf.h
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@@ -412,6 +412,13 @@ union bpf_attr {
__aligned_u64 data_out;
__u32 repeat;
__u32 duration;
__u32 ctx_size_in; /* input: len of ctx_in */
__u32 ctx_size_out; /* input/output: len of ctx_out
* returns ENOSPC if ctx_out
* is too small.
*/
__aligned_u64 ctx_in;
__aligned_u64 ctx_out;
} test;
struct { /* anonymous struct used by BPF_*_GET_*_ID */