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ersatz socketpair tests: work around freebsd jails.

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This commit is contained in:
Nick Mathewson 2016-10-13 09:47:28 -04:00
parent 49d7feb8a0
commit 07f2e5748e
1 changed files with 24 additions and 27 deletions
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51
src/test/test_util.c
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@ -5128,43 +5128,37 @@ test_util_socket(void *arg)
tor_close_socket__real(fd4); tor_close_socket__real(fd4);
} }
#ifdef __FreeBSD__
static int static int
is_there_a_localhost(void) is_there_a_localhost(int family)
{ {
tor_socket_t s; tor_socket_t s;
s = tor_open_socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); s = tor_open_socket(family, SOCK_STREAM, IPPROTO_TCP);
tor_assert(SOCKET_OK(s)); tor_assert(SOCKET_OK(s));
struct sockaddr_in s_in;
memset(&s_in, 0, sizeof(s_in));
s_in.sin_family = AF_INET;
s_in.sin_addr.s_addr = htonl(0x7f000001);
s_in.sin_port = 0;
int result = 0; int result = 0;
if (bind(s, (void*)&s_in, sizeof(s_in)) == 0) { if (family == AF_INET) {
result = 1; struct sockaddr_in s_in;
} memset(&s_in, 0, sizeof(s_in));
tor_close_socket(s); s_in.sin_family = AF_INET;
if (result) s_in.sin_addr.s_addr = htonl(0x7f000001);
return result; s_in.sin_port = 0;
s = tor_open_socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (bind(s, (void*)&s_in, sizeof(s_in)) == 0) {
tor_assert(SOCKET_OK(s)); result = 1;
}
struct sockaddr_in6 sin6; } else if (family == AF_INET6) {
memset(&sin6, 0, sizeof(sin6)); struct sockaddr_in6 sin6;
sin6.sin6_family = AF_INET6; memset(&sin6, 0, sizeof(sin6));
sin6.sin6_addr.s6_addr[15] = 1; sin6.sin6_family = AF_INET6;
sin6.sin6_port = 0; sin6.sin6_addr.s6_addr[15] = 1;
sin6.sin6_port = 0;
if (bind(s, (void*)&sin6, sizeof(sin6)) == 0) {
result = 1;
} }
tor_close_socket(s); tor_close_socket(s);
return result; return result;
} }
#endif
/* Test for socketpair and ersatz_socketpair(). We test them both, since /* Test for socketpair and ersatz_socketpair(). We test them both, since
* the latter is a tolerably good way to exersize tor_accept_socket(). */ * the latter is a tolerably good way to exersize tor_accept_socket(). */
@ -5180,15 +5174,18 @@ test_util_socketpair(void *arg)
int socketpair_result = 0; int socketpair_result = 0;
socketpair_result = tor_socketpair_fn(family, SOCK_STREAM, 0, fds); socketpair_result = tor_socketpair_fn(family, SOCK_STREAM, 0, fds);
/* If there is no 127.0.0.1 or ::1, tor_ersatz_socketpair will and must fail.
#ifdef __FreeBSD__
/* If there is no 127.0.0.1, tor_ersatz_socketpair will and must fail.
* Otherwise, we risk exposing a socketpair on a routable IP address. (Some * Otherwise, we risk exposing a socketpair on a routable IP address. (Some
* BSD jails use a routable address for localhost. Fortunately, they have * BSD jails use a routable address for localhost. Fortunately, they have
* the real AF_UNIX socketpair.) */ * the real AF_UNIX socketpair.) */
if (ersatz && socketpair_result < 0 && !is_there_a_localhost()) { if (ersatz && socketpair_result < 0 && !is_there_a_localhost(AF_INET)) {
/* In my testing, an IPv6-only FreeBSD jail without ::1 returned EINVAL. /* In my testing, an IPv6-only FreeBSD jail without ::1 returned EINVAL.
* Assume we're on a machine without 127.0.0.1 or ::1 and give up now. */ * Assume we're on a machine without 127.0.0.1 or ::1 and give up now. */
tt_skip(); tt_skip();
} }
#endif
tt_int_op(0, OP_EQ, socketpair_result); tt_int_op(0, OP_EQ, socketpair_result);
tt_assert(SOCKET_OK(fds[0])); tt_assert(SOCKET_OK(fds[0]));