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| author | Leon Hwang <leon.hwang@linux.dev> | 2026-05-12 23:31:52 +0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-05-12 12:44:40 -0700 |
| commit | 503c039ffeca7530ce9d6446a07b4bb776180b45 (patch) | |
| tree | e82cbc6f38fcbad238ed61427ed363cbc1d92923 /include/linux/bpf_verifier.h | |
| parent | b1bff40809429bcf80c201255a2bcdf1c5eec06e (diff) | |
| download | linux-503c039ffeca7530ce9d6446a07b4bb776180b45.tar.gz linux-503c039ffeca7530ce9d6446a07b4bb776180b45.zip | |
bpf: Refactor reporting log_true_size for prog_load
The next commit will add support for reporting logs via extended common
attributes, including 'log_true_size'.
To prepare for that, refactor the 'log_true_size' reporting logic by
introducing a new struct bpf_log_attr to encapsulate log-related behavior:
* bpf_log_attr_init(): initialize log fields, which will support
extended common attributes in the next commit.
* bpf_log_attr_finalize(): handle log finalization and write back
'log_true_size' to userspace.
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260512153157.28382-4-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/bpf_verifier.h')
| -rw-r--r-- | include/linux/bpf_verifier.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 976e2b2f40e8..8d27ad1f9f94 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -755,6 +755,18 @@ static inline bool bpf_verifier_log_needed(const struct bpf_verifier_log *log) return log && log->level; } +struct bpf_log_attr { + char __user *ubuf; + u32 size; + u32 level; + u32 offsetof_true_size; + bpfptr_t uattr; +}; + +int bpf_log_attr_init(struct bpf_log_attr *log, u64 log_buf, u32 log_size, u32 log_level, + u32 offsetof_log_true_size, bpfptr_t uattr); +int bpf_log_attr_finalize(struct bpf_log_attr *attr, struct bpf_verifier_log *log); + #define BPF_MAX_SUBPROGS 256 struct bpf_subprog_arg_info { |