grpc_error *grpc_create_dualstack_socket_using_factory(
grpc_socket_factory *factory, const grpc_resolved_address *resolved_addr,
int type, int protocol, grpc_dualstack_mode *dsmode, int *newfd) {
const struct sockaddr *addr = (const struct sockaddr *)resolved_addr->addr;
int family = addr->sa_family;
if (family == AF_INET6) {
if (grpc_ipv6_loopback_available()) {
*newfd = create_socket(factory, family, type, protocol);
} else {
*newfd = -1;
errno = EAFNOSUPPORT;
}
/* Check if we've got a valid dualstack socket. */
if (*newfd >= 0 && set_socket_dualstack(*newfd)) {
*dsmode = GRPC_DSMODE_DUALSTACK;
return GRPC_ERROR_NONE;
}
/* If this isn't an IPv4 address, then return whatever we've got. */
if (!grpc_sockaddr_is_v4mapped(resolved_addr, NULL)) {
*dsmode = GRPC_DSMODE_IPV6;
return error_for_fd(*newfd, resolved_addr);
}
/* Fall back to AF_INET. */
if (*newfd >= 0) {
close(*newfd);
}
family = AF_INET;
}
*dsmode = family == AF_INET ? GRPC_DSMODE_IPV4 : GRPC_DSMODE_NONE;
*newfd = create_socket(factory, family, type, protocol);
return error_for_fd(*newfd, resolved_addr);
}
int main(int argc, char **argv) {
int do_ipv6 = 1;
grpc_test_init(argc, argv);
grpc_init();
if (!grpc_ipv6_loopback_available()) {
gpr_log(GPR_INFO, "Can't bind to ::1. Skipping IPv6 tests.");
do_ipv6 = 0;
}
/* For coverage, test with and without dualstack sockets. */
for (grpc_forbid_dualstack_sockets_for_testing = 0;
grpc_forbid_dualstack_sockets_for_testing <= 1;
grpc_forbid_dualstack_sockets_for_testing++) {
/* :: and 0.0.0.0 are handled identically. */
test_connect("::", "127.0.0.1", 0, 1);
test_connect("::", "::ffff:127.0.0.1", 0, 1);
test_connect("::", "localhost", 0, 1);
test_connect("0.0.0.0", "127.0.0.1", 0, 1);
test_connect("0.0.0.0", "::ffff:127.0.0.1", 0, 1);
test_connect("0.0.0.0", "localhost", 0, 1);
if (do_ipv6) {
test_connect("::", "::1", 0, 1);
test_connect("0.0.0.0", "::1", 0, 1);
}
/* These only work when the families agree. */
test_connect("127.0.0.1", "127.0.0.1", 0, 1);
if (do_ipv6) {
test_connect("::1", "::1", 0, 1);
test_connect("::1", "127.0.0.1", 0, 0);
test_connect("127.0.0.1", "::1", 0, 0);
}
}
grpc_shutdown();
return 0;
}
int main(int argc, char **argv) {
int do_ipv6 = 1;
grpc_test_init(argc, argv);
grpc_init();
if (!grpc_ipv6_loopback_available()) {
gpr_log(GPR_INFO, "Can't bind to ::1. Skipping IPv6 tests.");
do_ipv6 = 0;
}
/* For coverage, test with and without dualstack sockets. */
for (grpc_forbid_dualstack_sockets_for_testing = 0;
grpc_forbid_dualstack_sockets_for_testing <= 1;
grpc_forbid_dualstack_sockets_for_testing++) {
/* :: and 0.0.0.0 are handled identically. */
test_connect("::", "127.0.0.1", 0, 1);
test_connect("::", "::ffff:127.0.0.1", 0, 1);
test_connect("::", "ipv4:127.0.0.1", 0, 1);
test_connect("::", "ipv6:[::ffff:127.0.0.1]", 0, 1);
test_connect("::", "localhost", 0, 1);
test_connect("0.0.0.0", "127.0.0.1", 0, 1);
test_connect("0.0.0.0", "::ffff:127.0.0.1", 0, 1);
test_connect("0.0.0.0", "ipv4:127.0.0.1", 0, 1);
test_connect("0.0.0.0", "ipv4:127.0.0.1,127.0.0.2,127.0.0.3", 0, 1);
test_connect("0.0.0.0", "ipv6:[::ffff:127.0.0.1],[::ffff:127.0.0.2]", 0, 1);
test_connect("0.0.0.0", "localhost", 0, 1);
if (do_ipv6) {
test_connect("::", "::1", 0, 1);
test_connect("0.0.0.0", "::1", 0, 1);
test_connect("::", "ipv6:[::1]", 0, 1);
test_connect("0.0.0.0", "ipv6:[::1]", 0, 1);
}
/* These only work when the families agree. */
test_connect("127.0.0.1", "127.0.0.1", 0, 1);
test_connect("127.0.0.1", "ipv4:127.0.0.1", 0, 1);
if (do_ipv6) {
test_connect("::1", "::1", 0, 1);
test_connect("::1", "127.0.0.1", 0, 0);
test_connect("127.0.0.1", "::1", 0, 0);
test_connect("::1", "ipv6:[::1]", 0, 1);
test_connect("::1", "ipv4:127.0.0.1", 0, 0);
test_connect("127.0.0.1", "ipv6:[::1]", 0, 0);
}
if (!external_dns_works("loopback46.unittest.grpc.io")) {
gpr_log(GPR_INFO, "Skipping tests that depend on *.unittest.grpc.io.");
} else {
test_connect("loopback46.unittest.grpc.io", "loopback4.unittest.grpc.io",
0, 1);
test_connect("loopback4.unittest.grpc.io", "loopback46.unittest.grpc.io",
0, 1);
if (do_ipv6) {
test_connect("loopback46.unittest.grpc.io",
"loopback6.unittest.grpc.io", 0, 1);
test_connect("loopback6.unittest.grpc.io",
"loopback46.unittest.grpc.io", 0, 1);
test_connect("loopback4.unittest.grpc.io", "loopback6.unittest.grpc.io",
0, 0);
test_connect("loopback6.unittest.grpc.io", "loopback4.unittest.grpc.io",
0, 0);
}
}
}
grpc_shutdown();
return 0;
}