1*0f4c859eSApple OSS Distributions #include <darwintest.h>
2*0f4c859eSApple OSS Distributions #include <sys/socket.h>
3*0f4c859eSApple OSS Distributions #include <net/if.h>
4*0f4c859eSApple OSS Distributions #include <sys/ioctl.h>
5*0f4c859eSApple OSS Distributions
6*0f4c859eSApple OSS Distributions static void __unused
create_interfaces(const char * prefix,int num)7*0f4c859eSApple OSS Distributions create_interfaces(const char *prefix, int num)
8*0f4c859eSApple OSS Distributions {
9*0f4c859eSApple OSS Distributions static int fd = -1;
10*0f4c859eSApple OSS Distributions
11*0f4c859eSApple OSS Distributions if (fd == -1) {
12*0f4c859eSApple OSS Distributions fd = socket(PF_INET, SOCK_STREAM, 0);
13*0f4c859eSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(fd, "socket");
14*0f4c859eSApple OSS Distributions }
15*0f4c859eSApple OSS Distributions for (int i = 0; i < num; i++) {
16*0f4c859eSApple OSS Distributions struct ifreq ifr = {};
17*0f4c859eSApple OSS Distributions
18*0f4c859eSApple OSS Distributions sprintf(ifr.ifr_name, "%s%d", prefix, i);
19*0f4c859eSApple OSS Distributions int ret = ioctl(fd, SIOCIFCREATE, &ifr);
20*0f4c859eSApple OSS Distributions if (errno == EEXIST) {
21*0f4c859eSApple OSS Distributions continue;
22*0f4c859eSApple OSS Distributions }
23*0f4c859eSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "SIOCIFCREATE");
24*0f4c859eSApple OSS Distributions memset(&ifr, 0, sizeof(ifr));
25*0f4c859eSApple OSS Distributions sprintf(ifr.ifr_name, "%s%d", prefix, i);
26*0f4c859eSApple OSS Distributions ret = ioctl(fd, SIOCIFDESTROY, &ifr);
27*0f4c859eSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "SIOCIFDESTROY");
28*0f4c859eSApple OSS Distributions if (i % 100 == 0) {
29*0f4c859eSApple OSS Distributions printf("created %s%d\n", prefix, i);
30*0f4c859eSApple OSS Distributions }
31*0f4c859eSApple OSS Distributions }
32*0f4c859eSApple OSS Distributions }
33*0f4c859eSApple OSS Distributions
34*0f4c859eSApple OSS Distributions
35*0f4c859eSApple OSS Distributions T_DECL(test_ifnet_overflow,
36*0f4c859eSApple OSS Distributions "Verify that we don't crash when we create many interfaces",
37*0f4c859eSApple OSS Distributions T_META_CHECK_LEAKS(false))
38*0f4c859eSApple OSS Distributions {
39*0f4c859eSApple OSS Distributions #if 1
40*0f4c859eSApple OSS Distributions T_SKIP("Not stable yet");
41*0f4c859eSApple OSS Distributions #else
42*0f4c859eSApple OSS Distributions create_interfaces("vlan", 32768);
43*0f4c859eSApple OSS Distributions create_interfaces("feth", 32768);
44*0f4c859eSApple OSS Distributions #endif
45*0f4c859eSApple OSS Distributions }
46