projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 527f9951 A |
1 | /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ |
| 2 | ||
| 3 | #include <darwintest.h> | |
| 4 | #include <poll.h> | |
| 5 | #include <sys/socket.h> | |
| 6 | #include <unistd.h> | |
| 7 | #include <netinet/in.h> | |
| 8 | #include <arpa/inet.h> | |
| 9 | #include <errno.h> | |
| 10 | #include <TargetConditionals.h> | |
| 11 | ||
| 12 | static int | |
| 13 | sockv6_open(void) | |
| 14 | { | |
| 15 | int s; | |
| 16 | ||
| 17 | s = socket(AF_INET6, SOCK_DGRAM, 0); | |
| 18 | T_QUIET; | |
| 19 | T_ASSERT_POSIX_SUCCESS(s, "socket(AF_INET6, SOCK_DGRAM, 0)"); | |
| 20 | return (s); | |
| 21 | } | |
| 22 | ||
| 23 | static int | |
| 24 | sockv6_bind(int s, in_port_t port) | |
| 25 | { | |
| 26 | struct sockaddr_in6 sin6; | |
| 27 | ||
| 28 | bzero(&sin6, sizeof(sin6)); | |
| 29 | sin6.sin6_len = sizeof(sin6); | |
| 30 | sin6.sin6_family = AF_INET6; | |
| 31 | sin6.sin6_port = port; | |
| 32 | return (bind(s, (const struct sockaddr *)&sin6, sizeof(sin6))); | |
| 33 | } | |
| 34 | ||
| 35 | static void | |
| 36 | sockv6_set_v6only(int s) | |
| 37 | { | |
| 38 | int on = 1; | |
| 39 | int ret; | |
| 40 | ||
| 41 | ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)); | |
| 42 | T_QUIET; | |
| 43 | T_ASSERT_POSIX_SUCCESS(ret, "setsockopt(%d, IPV6_ONLY)", s); | |
| 44 | } | |
| 45 | ||
| 46 | static bool | |
| 47 | alloc_and_bind_ports(in_port_t port_start, in_port_t port_end, | |
| 48 | int bind_attempts) | |
| 49 | { | |
| 50 | int bound_count = 0; | |
| 51 | bool success = true; | |
| 52 | ||
| 53 | for (in_port_t i = port_start; success && i <= port_end; i++) { | |
| 54 | int s6 = -1; | |
| 55 | int s6_other = -1; | |
| 56 | int ret; | |
| 57 | ||
| 58 | s6 = sockv6_open(); | |
| 59 | sockv6_set_v6only(s6); | |
| 60 | if (sockv6_bind(s6, i) != 0) { | |
| 61 | /* find the next available port */ | |
| 62 | goto loop_done; | |
| 63 | } | |
| 64 | s6_other = sockv6_open(); | |
| 65 | ret = sockv6_bind(s6_other, i); | |
| 66 | T_WITH_ERRNO; | |
| 67 | T_QUIET; | |
| 68 | T_ASSERT_TRUE(ret != 0, "socket %d bind %d", s6_other, i); | |
| 69 | /* | |
| 70 | * After bind fails, try binding to a different port. | |
| 71 | * For non-root user, this will panic without the fix for | |
| 72 | * <rdar://problem/35243417>. | |
| 73 | */ | |
| 74 | if (sockv6_bind(s6_other, i + 1) == 0) { | |
| 75 | bound_count++; | |
| 76 | if (bound_count >= bind_attempts) { | |
| 77 | break; | |
| 78 | } | |
| 79 | } | |
| 80 | loop_done: | |
| 81 | if (s6 >= 0) { | |
| 82 | close(s6); | |
| 83 | } | |
| 84 | if (s6_other >= 0) { | |
| 85 | close(s6_other); | |
| 86 | } | |
| 87 | } | |
| 88 | T_ASSERT_TRUE(bound_count == bind_attempts, | |
| 89 | "number of successful binds %d (out of %d)", | |
| 90 | bound_count, bind_attempts); | |
| 91 | return (success); | |
| 92 | } | |
| 93 | ||
| 94 | ||
| 95 | T_DECL(socket_bind_35243417, | |
| 96 | "bind IPv6 only UDP socket, then bind IPv6 socket.", | |
| 97 | T_META_ASROOT(false), | |
| 98 | T_META_CHECK_LEAKS(false)) | |
| 99 | { | |
| 100 | #if TARGET_OS_WATCH | |
| 101 | T_SKIP("socket_bind_35243417 can't run on watch."); | |
| 102 | #else | |
| 103 | alloc_and_bind_ports(1, 65534, 10); | |
| 104 | #endif | |
| 105 | } | |
| 106 | ||
| 107 | T_DECL(socket_bind_35243417_root, | |
| 108 | "bind IPv6 only UDP socket, then bind IPv6 socket.", | |
| 109 | T_META_ASROOT(true)) | |
| 110 | { | |
| 111 | #if TARGET_OS_WATCH | |
| 112 | T_SKIP("socket_bind_35243417_root can't run on watch."); | |
| 113 | #else | |
| 114 | alloc_and_bind_ports(1, 65534, 10); | |
| 115 | #endif | |
| 116 | } |