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authorDaniel P. Berrange <berrange@redhat.com>2015-02-27 16:19:33 +0000
committerDaniel P. Berrange <berrange@redhat.com>2015-12-18 12:18:31 +0000
commit559607ea173a0003efda7f884bec73b242f923fb (patch)
tree63e923e55537ea0add19a0a8bb7c1a238d6cb3e9 /tests/test-io-channel-socket.c
parentb02db2d9203ccfd1c26e55f7d975f0c05caee0ce (diff)
io: add QIOChannelSocket class
Implement a QIOChannel subclass that supports sockets I/O. The implementation is able to manage a single socket file descriptor, whether a TCP/UNIX listener, TCP/UNIX connection, or a UDP datagram. It provides APIs which can listen and connect either asynchronously or synchronously. Since there is no asynchronous DNS lookup API available, it uses the QIOTask helper for spawning a background thread to ensure non-blocking operation. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'tests/test-io-channel-socket.c')
-rw-r--r--tests/test-io-channel-socket.c399
1 files changed, 399 insertions, 0 deletions
diff --git a/tests/test-io-channel-socket.c b/tests/test-io-channel-socket.c
new file mode 100644
index 0000000000..194d043878
--- /dev/null
+++ b/tests/test-io-channel-socket.c
@@ -0,0 +1,399 @@
+/*
+ * QEMU I/O channel sockets test
+ *
+ * Copyright (c) 2015 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "io/channel-socket.h"
+#include "io-channel-helpers.h"
+#ifdef HAVE_IFADDRS_H
+#include <ifaddrs.h>
+#endif
+
+static int check_protocol_support(bool *has_ipv4, bool *has_ipv6)
+{
+#ifdef HAVE_IFADDRS_H
+ struct ifaddrs *ifaddr = NULL, *ifa;
+ struct addrinfo hints = { 0 };
+ struct addrinfo *ai = NULL;
+ int gaierr;
+
+ *has_ipv4 = *has_ipv6 = false;
+
+ if (getifaddrs(&ifaddr) < 0) {
+ g_printerr("Failed to lookup interface addresses: %s\n",
+ strerror(errno));
+ return -1;
+ }
+
+ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+ if (!ifa->ifa_addr) {
+ continue;
+ }
+
+ if (ifa->ifa_addr->sa_family == AF_INET) {
+ *has_ipv4 = true;
+ }
+ if (ifa->ifa_addr->sa_family == AF_INET6) {
+ *has_ipv6 = true;
+ }
+ }
+
+ freeifaddrs(ifaddr);
+
+ hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
+ hints.ai_family = AF_INET6;
+ hints.ai_socktype = SOCK_STREAM;
+
+ gaierr = getaddrinfo("::1", NULL, &hints, &ai);
+ if (gaierr != 0) {
+ if (gaierr == EAI_ADDRFAMILY ||
+ gaierr == EAI_FAMILY ||
+ gaierr == EAI_NONAME) {
+ *has_ipv6 = false;
+ } else {
+ g_printerr("Failed to resolve ::1 address: %s\n",
+ gai_strerror(gaierr));
+ return -1;
+ }
+ }
+
+ freeaddrinfo(ai);
+
+ return 0;
+#else
+ *has_ipv4 = *has_ipv6 = false;
+
+ return -1;
+#endif
+}
+
+
+static void test_io_channel_set_socket_bufs(QIOChannel *src,
+ QIOChannel *dst)
+{
+ int buflen = 64 * 1024;
+
+ /*
+ * Make the socket buffers small so that we see
+ * the effects of partial reads/writes
+ */
+ setsockopt(((QIOChannelSocket *)src)->fd,
+ SOL_SOCKET, SO_SNDBUF,
+ (char *)&buflen,
+ sizeof(buflen));
+
+ setsockopt(((QIOChannelSocket *)dst)->fd,
+ SOL_SOCKET, SO_SNDBUF,
+ (char *)&buflen,
+ sizeof(buflen));
+}
+
+
+static void test_io_channel_setup_sync(SocketAddress *listen_addr,
+ SocketAddress *connect_addr,
+ QIOChannel **src,
+ QIOChannel **dst)
+{
+ QIOChannelSocket *lioc;
+
+ lioc = qio_channel_socket_new();
+ qio_channel_socket_listen_sync(lioc, listen_addr, &error_abort);
+
+ if (listen_addr->type == SOCKET_ADDRESS_KIND_INET) {
+ SocketAddress *laddr = qio_channel_socket_get_local_address(
+ lioc, &error_abort);
+
+ g_free(connect_addr->u.inet->port);
+ connect_addr->u.inet->port = g_strdup(laddr->u.inet->port);
+
+ qapi_free_SocketAddress(laddr);
+ }
+
+ *src = QIO_CHANNEL(qio_channel_socket_new());
+ qio_channel_socket_connect_sync(
+ QIO_CHANNEL_SOCKET(*src), connect_addr, &error_abort);
+ qio_channel_set_delay(*src, false);
+
+ *dst = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort));
+ g_assert(*dst);
+
+ test_io_channel_set_socket_bufs(*src, *dst);
+
+ object_unref(OBJECT(lioc));
+}
+
+
+struct TestIOChannelData {
+ bool err;
+ GMainLoop *loop;
+};
+
+
+static void test_io_channel_complete(Object *src,
+ Error *err,
+ gpointer opaque)
+{
+ struct TestIOChannelData *data = opaque;
+ data->err = err != NULL;
+ g_main_loop_quit(data->loop);
+}
+
+
+static void test_io_channel_setup_async(SocketAddress *listen_addr,
+ SocketAddress *connect_addr,
+ QIOChannel **src,
+ QIOChannel **dst)
+{
+ QIOChannelSocket *lioc;
+ struct TestIOChannelData data;
+
+ data.loop = g_main_loop_new(g_main_context_default(),
+ TRUE);
+
+ lioc = qio_channel_socket_new();
+ qio_channel_socket_listen_async(
+ lioc, listen_addr,
+ test_io_channel_complete, &data, NULL);
+
+ g_main_loop_run(data.loop);
+ g_main_context_iteration(g_main_context_default(), FALSE);
+
+ g_assert(!data.err);
+
+ if (listen_addr->type == SOCKET_ADDRESS_KIND_INET) {
+ SocketAddress *laddr = qio_channel_socket_get_local_address(
+ lioc, &error_abort);
+
+ g_free(connect_addr->u.inet->port);
+ connect_addr->u.inet->port = g_strdup(laddr->u.inet->port);
+
+ qapi_free_SocketAddress(laddr);
+ }
+
+ *src = QIO_CHANNEL(qio_channel_socket_new());
+
+ qio_channel_socket_connect_async(
+ QIO_CHANNEL_SOCKET(*src), connect_addr,
+ test_io_channel_complete, &data, NULL);
+
+ g_main_loop_run(data.loop);
+ g_main_context_iteration(g_main_context_default(), FALSE);
+
+ g_assert(!data.err);
+
+ *dst = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort));
+ g_assert(*dst);
+
+ qio_channel_set_delay(*src, false);
+ test_io_channel_set_socket_bufs(*src, *dst);
+
+ object_unref(OBJECT(lioc));
+
+ g_main_loop_unref(data.loop);
+}
+
+
+static void test_io_channel(bool async,
+ SocketAddress *listen_addr,
+ SocketAddress *connect_addr)
+{
+ QIOChannel *src, *dst;
+ QIOChannelTest *test;
+ if (async) {
+ test_io_channel_setup_async(listen_addr, connect_addr, &src, &dst);
+
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, true, src, dst);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(src));
+ object_unref(OBJECT(dst));
+
+ test_io_channel_setup_async(listen_addr, connect_addr, &src, &dst);
+
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, false, src, dst);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(src));
+ object_unref(OBJECT(dst));
+ } else {
+ test_io_channel_setup_sync(listen_addr, connect_addr, &src, &dst);
+
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, true, src, dst);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(src));
+ object_unref(OBJECT(dst));
+
+ test_io_channel_setup_sync(listen_addr, connect_addr, &src, &dst);
+
+ test = qio_channel_test_new();
+ qio_channel_test_run_threads(test, false, src, dst);
+ qio_channel_test_validate(test);
+
+ object_unref(OBJECT(src));
+ object_unref(OBJECT(dst));
+ }
+}
+
+
+static void test_io_channel_ipv4(bool async)
+{
+ SocketAddress *listen_addr = g_new0(SocketAddress, 1);
+ SocketAddress *connect_addr = g_new0(SocketAddress, 1);
+
+ listen_addr->type = SOCKET_ADDRESS_KIND_INET;
+ listen_addr->u.inet = g_new0(InetSocketAddress, 1);
+ listen_addr->u.inet->host = g_strdup("0.0.0.0");
+ listen_addr->u.inet->port = NULL; /* Auto-select */
+
+ connect_addr->type = SOCKET_ADDRESS_KIND_INET;
+ connect_addr->u.inet = g_new0(InetSocketAddress, 1);
+ connect_addr->u.inet->host = g_strdup("127.0.0.1");
+ connect_addr->u.inet->port = NULL; /* Filled in later */
+
+ test_io_channel(async, listen_addr, connect_addr);
+
+ qapi_free_SocketAddress(listen_addr);
+ qapi_free_SocketAddress(connect_addr);
+}
+
+
+static void test_io_channel_ipv4_sync(void)
+{
+ return test_io_channel_ipv4(false);
+}
+
+
+static void test_io_channel_ipv4_async(void)
+{
+ return test_io_channel_ipv4(true);
+}
+
+
+static void test_io_channel_ipv6(bool async)
+{
+ SocketAddress *listen_addr = g_new0(SocketAddress, 1);
+ SocketAddress *connect_addr = g_new0(SocketAddress, 1);
+
+ listen_addr->type = SOCKET_ADDRESS_KIND_INET;
+ listen_addr->u.inet = g_new0(InetSocketAddress, 1);
+ listen_addr->u.inet->host = g_strdup("::");
+ listen_addr->u.inet->port = NULL; /* Auto-select */
+
+ connect_addr->type = SOCKET_ADDRESS_KIND_INET;
+ connect_addr->u.inet = g_new0(InetSocketAddress, 1);
+ connect_addr->u.inet->host = g_strdup("::1");
+ connect_addr->u.inet->port = NULL; /* Filled in later */
+
+ test_io_channel(async, listen_addr, connect_addr);
+
+ qapi_free_SocketAddress(listen_addr);
+ qapi_free_SocketAddress(connect_addr);
+}
+
+
+static void test_io_channel_ipv6_sync(void)
+{
+ return test_io_channel_ipv6(false);
+}
+
+
+static void test_io_channel_ipv6_async(void)
+{
+ return test_io_channel_ipv6(true);
+}
+
+
+#ifndef _WIN32
+static void test_io_channel_unix(bool async)
+{
+ SocketAddress *listen_addr = g_new0(SocketAddress, 1);
+ SocketAddress *connect_addr = g_new0(SocketAddress, 1);
+
+#define TEST_SOCKET "test-io-channel-socket.sock"
+ listen_addr->type = SOCKET_ADDRESS_KIND_UNIX;
+ listen_addr->u.q_unix = g_new0(UnixSocketAddress, 1);
+ listen_addr->u.q_unix->path = g_strdup(TEST_SOCKET);
+
+ connect_addr->type = SOCKET_ADDRESS_KIND_UNIX;
+ connect_addr->u.q_unix = g_new0(UnixSocketAddress, 1);
+ connect_addr->u.q_unix->path = g_strdup(TEST_SOCKET);
+
+ test_io_channel(async, listen_addr, connect_addr);
+
+ qapi_free_SocketAddress(listen_addr);
+ qapi_free_SocketAddress(connect_addr);
+ unlink(TEST_SOCKET);
+}
+
+
+static void test_io_channel_unix_sync(void)
+{
+ return test_io_channel_unix(false);
+}
+
+
+static void test_io_channel_unix_async(void)
+{
+ return test_io_channel_unix(true);
+}
+#endif /* _WIN32 */
+
+
+int main(int argc, char **argv)
+{
+ bool has_ipv4, has_ipv6;
+
+ module_call_init(MODULE_INIT_QOM);
+
+ g_test_init(&argc, &argv, NULL);
+
+ /* We're creating actual IPv4/6 sockets, so we should
+ * check if the host running tests actually supports
+ * each protocol to avoid breaking tests on machines
+ * with either IPv4 or IPv6 disabled.
+ */
+ if (check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
+ return 1;
+ }
+
+ if (has_ipv4) {
+ g_test_add_func("/io/channel/socket/ipv4-sync",
+ test_io_channel_ipv4_sync);
+ g_test_add_func("/io/channel/socket/ipv4-async",
+ test_io_channel_ipv4_async);
+ }
+ if (has_ipv6) {
+ g_test_add_func("/io/channel/socket/ipv6-sync",
+ test_io_channel_ipv6_sync);
+ g_test_add_func("/io/channel/socket/ipv6-async",
+ test_io_channel_ipv6_async);
+ }
+
+#ifndef _WIN32
+ g_test_add_func("/io/channel/socket/unix-sync",
+ test_io_channel_unix_sync);
+ g_test_add_func("/io/channel/socket/unix-async",
+ test_io_channel_unix_async);
+#endif /* _WIN32 */
+
+ return g_test_run();
+}