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On linux, keep track of seccomp tracing properly.

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With the new process startup code we must handle the SIGSTOP
from the processes if seccomp_tracing is enabled. Otherwise
they just hang indefinitely and we assume they failed to start,
which is somewhat true.
This commit is contained in:
Joris Vink 2021-09-07 23:05:25 +02:00
parent 1af0772ebe
commit a6677b873f
1 changed files with 13 additions and 0 deletions
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13
src/worker.c
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@ -184,6 +184,9 @@ kore_worker_spawn(u_int16_t idx, u_int16_t id, u_int16_t cpu)
{
int cnt;
struct kore_worker *kw;
#if defined(__linux__)
int status;
#endif
kw = WORKER(idx);
kw->id = id;
@ -227,6 +230,16 @@ kore_worker_spawn(u_int16_t idx, u_int16_t id, u_int16_t cpu)
if (kw->ready == 1)
break;
usleep(100000);
#if defined(__linux__)
/*
* If seccomp_tracing is enabled, make sure we
* handle the SIGSTOP from the child processes.
*/
if (kore_seccomp_tracing) {
if (waitpid(kw->pid, &status, WNOHANG) > 0)
kore_seccomp_trace(kw->pid, status);
}
#endif
}
if (kw->ready == 0) {