void main_loop()
{
regenerate();
if (do_specific_syscall == 1)
regenerate_random_page();
while (1) {
fork_children();
handle_children();
/* Only check taint if it was zero on startup */
if (do_check_tainted == 0) {
if (check_tainted() != 0) {
output("kernel became tainted!\n");
exit(EXIT_FAILURE);
}
}
if (syscallcount && (shm->execcount >= syscallcount))
exit(EXIT_SUCCESS);
if (shm->execcount % 1000 == 0)
synclogs();
}
}
static int child(const int c)
{
int i;
struct testcase *t = &testcases[c];
t->master.pid = getpid();
if (fork_children(t, 0))
goto err;
if (t->pid == t->sid) {
if (getpid() != getsid(getpid()))
if (setsid() < 0)
goto err;
if (fork_children(t, 1))
goto err;
}
if (t->pid == t->pgid) {
if (getpid() != getpgid(getpid()))
if (setpgid(getpid(), getpid()) < 0) {
err("setpgid() failed");
goto err;
}
t->master.pgid = t->master.pid;
}
futex_set_and_wake(&t->futex, c);
if (c == 0)
goto out;
futex_wait_until(fstate, TEST_PGID);
for (i = 0; i < TESTS; i++) {
if (c == 0)
break;
if (t->pgid != testcases[i].pid)
continue;
if (getpgid(getpid()) != testcases[i].master.pid)
if (setpgid(getpid(), testcases[i].master.pid) < 0) {
err("setpgid() failed (%d) (%d)\n", c, i);
goto err;
}
t->master.pgid = testcases[i].master.pid;
break;
}
futex_set_and_wake(&t->futex, c);
futex_wait_until(fstate, TEST_WAIT);
for (i = 0; i < TESTS; i++) {
if (t->pid != testcases[i].ppid)
continue;
if (testcases[i].alive)
continue;
test_msg("Wait porcess %d (pid %d)\n", i, testcases[i].master.pid);
waitpid(testcases[i].master.pid, NULL, 0);
}
if (!t->alive)
goto out;
futex_set_and_wake(&t->futex, c);
futex_wait_until(fstate, TEST_MASTER);
/* Save the master copy */
t->master.ppid = getppid();
t->master.sid = getsid(getpid());
futex_set_and_wake(&t->futex, c);
futex_wait_until(fstate, TEST_CHECK);
check("pid", t->master.pid, getpid());
check("ppid", t->master.ppid, getppid());
check("sid", t->master.sid, getsid(getpid()));
check("pgid", t->master.pgid, getpgid(getpid()));
futex_set_and_wake(&t->futex, c);
/* Wait while all test cases check results */
futex_wait_until(fstate, TEST_EXIT);
out:
return 0;
err:
futex_set_and_wake(&t->futex, -1);
return 1;
}
