Re: [RFC] bpf: Emit audit messages upon successful prog load and unload
From: Jiri Olsa <hidden>
Date: 2019-12-04 15:27:06
Also in:
bpf
From: Jiri Olsa <hidden>
Date: 2019-12-04 15:27:06
Also in:
bpf
On Wed, Dec 04, 2019 at 09:38:10AM -0500, Paul Moore wrote: SNIP
quoted
+ +static const char * const bpf_audit_str[] = { + [BPF_AUDIT_LOAD] = "LOAD", + [BPF_AUDIT_UNLOAD] = "UNLOAD", +}; + +static void bpf_audit_prog(const struct bpf_prog *prog, enum bpf_audit op) +{ + struct audit_context *ctx = NULL; + struct audit_buffer *ab; + + if (audit_enabled == AUDIT_OFF) + return; + if (op == BPF_AUDIT_LOAD) + ctx = audit_context(); + ab = audit_log_start(ctx, GFP_ATOMIC, AUDIT_BPF); + if (unlikely(!ab)) + return; + audit_log_format(ab, "prog-id=%u op=%s", + prog->aux->id, bpf_audit_str[op]); + audit_log_end(ab); +}As mentioned previously, I still think it might be a good idea to ensure "op" is within the bounds of bpf_audit_str, but the audit bits look reasonable to me.
ok, I'll add that, I'll send out full patch thanks for the review, jirka