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| author | Alexei Starovoitov <[email protected]> | 2019-10-16 03:24:58 +0000 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2019-10-17 14:44:35 +0000 |
| commit | ccfe29eb29c2edcea6552072ef00ff4117f53e83 (patch) | |
| tree | 43baf143abe39dd1c045e90e209a00f1993e4930 /tools/lib/bpf/bpf.c | |
| parent | bpf: Process in-kernel BTF (diff) | |
| download | kernel-ccfe29eb29c2edcea6552072ef00ff4117f53e83.tar.gz kernel-ccfe29eb29c2edcea6552072ef00ff4117f53e83.zip | |
bpf: Add attach_btf_id attribute to program load
Add attach_btf_id attribute to prog_load command.
It's similar to existing expected_attach_type attribute which is
used in several cgroup based program types.
Unfortunately expected_attach_type is ignored for
tracing programs and cannot be reused for new purpose.
Hence introduce attach_btf_id to verify bpf programs against
given in-kernel BTF type id at load time.
It is strictly checked to be valid for raw_tp programs only.
In a later patches it will become:
btf_id == 0 semantics of existing raw_tp progs.
btd_id > 0 raw_tp with BTF and additional type safety.
Signed-off-by: Alexei Starovoitov <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Acked-by: Martin KaFai Lau <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/lib/bpf/bpf.c')
0 files changed, 0 insertions, 0 deletions