1*2c2f96dcSApple OSS Distributions #include <darwintest.h>
2*2c2f96dcSApple OSS Distributions #include <sys/socket.h>
3*2c2f96dcSApple OSS Distributions #include <net/if.h>
4*2c2f96dcSApple OSS Distributions #include <sys/ioctl.h>
5*2c2f96dcSApple OSS Distributions
6*2c2f96dcSApple OSS Distributions static void __unused
create_interfaces(const char * prefix,int num)7*2c2f96dcSApple OSS Distributions create_interfaces(const char *prefix, int num)
8*2c2f96dcSApple OSS Distributions {
9*2c2f96dcSApple OSS Distributions static int fd = -1;
10*2c2f96dcSApple OSS Distributions
11*2c2f96dcSApple OSS Distributions if (fd == -1) {
12*2c2f96dcSApple OSS Distributions fd = socket(PF_INET, SOCK_STREAM, 0);
13*2c2f96dcSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(fd, "socket");
14*2c2f96dcSApple OSS Distributions }
15*2c2f96dcSApple OSS Distributions for (int i = 0; i < num; i++) {
16*2c2f96dcSApple OSS Distributions struct ifreq ifr = {};
17*2c2f96dcSApple OSS Distributions
18*2c2f96dcSApple OSS Distributions sprintf(ifr.ifr_name, "%s%d", prefix, i);
19*2c2f96dcSApple OSS Distributions int ret = ioctl(fd, SIOCIFCREATE, &ifr);
20*2c2f96dcSApple OSS Distributions if (errno == EEXIST) {
21*2c2f96dcSApple OSS Distributions continue;
22*2c2f96dcSApple OSS Distributions }
23*2c2f96dcSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "SIOCIFCREATE");
24*2c2f96dcSApple OSS Distributions memset(&ifr, 0, sizeof(ifr));
25*2c2f96dcSApple OSS Distributions sprintf(ifr.ifr_name, "%s%d", prefix, i);
26*2c2f96dcSApple OSS Distributions ret = ioctl(fd, SIOCIFDESTROY, &ifr);
27*2c2f96dcSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "SIOCIFDESTROY");
28*2c2f96dcSApple OSS Distributions if (i % 100 == 0) {
29*2c2f96dcSApple OSS Distributions printf("created %s%d\n", prefix, i);
30*2c2f96dcSApple OSS Distributions }
31*2c2f96dcSApple OSS Distributions }
32*2c2f96dcSApple OSS Distributions }
33*2c2f96dcSApple OSS Distributions
34*2c2f96dcSApple OSS Distributions
35*2c2f96dcSApple OSS Distributions T_DECL(test_ifnet_overflow,
36*2c2f96dcSApple OSS Distributions "Verify that we don't crash when we create many interfaces",
37*2c2f96dcSApple OSS Distributions T_META_CHECK_LEAKS(false))
38*2c2f96dcSApple OSS Distributions {
39*2c2f96dcSApple OSS Distributions #if 1
40*2c2f96dcSApple OSS Distributions T_SKIP("Not stable yet");
41*2c2f96dcSApple OSS Distributions #else
42*2c2f96dcSApple OSS Distributions create_interfaces("vlan", 32768);
43*2c2f96dcSApple OSS Distributions create_interfaces("feth", 32768);
44*2c2f96dcSApple OSS Distributions #endif
45*2c2f96dcSApple OSS Distributions }
46