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| author | Song Liu <songliubraving@fb.com> | 2021-02-12 10:31:06 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-02-12 12:56:53 -0800 |
| commit | 3d06f34aa89698f74e743b9ec023eafc19827cba (patch) | |
| tree | bbb93cffdc0caac4670e4c76305cd45cb5ffd2cd /kernel/trace | |
| parent | 3a7b35b899dedd29468301a3cbc4fa48a49e2131 (diff) | |
| download | lwn-3d06f34aa89698f74e743b9ec023eafc19827cba.tar.gz lwn-3d06f34aa89698f74e743b9ec023eafc19827cba.zip | |
bpf: Allow bpf_d_path in bpf_iter program
task_file and task_vma iter programs have access to file->f_path. Enable
bpf_d_path to print paths of these file.
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210212183107.50963-3-songliubraving@fb.com
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 845b2168e006..0b9e4fd9c61b 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1191,6 +1191,10 @@ BTF_SET_END(btf_allowlist_d_path) static bool bpf_d_path_allowed(const struct bpf_prog *prog) { + if (prog->type == BPF_PROG_TYPE_TRACING && + prog->expected_attach_type == BPF_TRACE_ITER) + return true; + if (prog->type == BPF_PROG_TYPE_LSM) return bpf_lsm_is_sleepable_hook(prog->aux->attach_btf_id); |