flow_div_doubleconnect_55917185.c [plain text]
#include <stdlib.h>
#include <pthread.h>
#include <sys/kern_control.h>
#include <sys/socket.h>
#include <sys/sys_domain.h>
#include <unistd.h>
#include <darwintest.h>
#define NTRIES 200000
static void *
connect_race(void *data)
{
int *ps = data;
struct sockaddr_ctl sc = {
.sc_id = 1
};
int n;
for (n = 0; n < NTRIES; ++n) {
connect(*ps, (const struct sockaddr *)&sc, sizeof(sc));
}
return NULL;
}
T_DECL(flow_div_doubleconnect_55917185, "Bad error path in double-connect for flow_divert_kctl_connect")
{
int s = -1;
int tmp_s;
struct sockaddr_ctl sc = {
.sc_id = 1
};
pthread_t t;
int n;
T_SETUPBEGIN;
T_ASSERT_POSIX_ZERO(pthread_create(&t, NULL, connect_race, &s), NULL);
T_SETUPEND;
for (n = 0; n < NTRIES; ++n) {
T_ASSERT_POSIX_SUCCESS(tmp_s = socket(AF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL), NULL);
bind(tmp_s, (const struct sockaddr *)&sc, sizeof(sc));
s = tmp_s;
connect(s, (const struct sockaddr *)&sc, sizeof(sc));
T_ASSERT_POSIX_SUCCESS(close(s), NULL);
s = -1;
}
T_ASSERT_POSIX_ZERO(pthread_join(t, NULL), NULL);
T_PASS("flow_divert_kctl_connect race didn't trigger panic");
}