libbpf-tools: Allow filelife to run on kernels without CONIFG_SECURITY

security_inode_create does NOT exist if CONIFG_SECURITY is not set. The tool filelife attaches to security_inode_create unconditionally and result in attach error. Fix it by checking symbol existence. Signed-off-by: Hengqi Chen <[email protected]>
Limnotation · Jul 3, 2022 · c3c99a9 · c3c99a9
1 parent df8d58a
commit c3c99a9
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/libbpf-tools/filelife.c b/libbpf-tools/filelife.c
@@ -138,6 +138,9 @@ int main(int argc, char **argv)
  /* initialize global data (filtering options) */
  obj->rodata->targ_tgid = env.pid;
 
+ if (!kprobe_exists("security_inode_create"))
+ bpf_program__set_autoload(obj->progs.security_inode_create, false);
+
  err = filelife_bpf__load(obj);
  if (err) {
  fprintf(stderr, "failed to load BPF object: %d\n", err);