/* * Tests for QEMU yank feature * * Copyright (c) Lukas Straub * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include #include "qemu/config-file.h" #include "qemu/module.h" #include "qemu/option.h" #include "chardev/char-fe.h" #include "sysemu/sysemu.h" #include "qapi/error.h" #include "qapi/qapi-commands-char.h" #include "qapi/qapi-types-char.h" #include "qapi/qapi-commands-yank.h" #include "qapi/qapi-types-yank.h" #include "io/channel-socket.h" #include "socket-helpers.h" typedef struct { SocketAddress *addr; bool old_yank; bool new_yank; bool fail; } CharChangeTestConfig; static int chardev_change(void *opaque) { return 0; } static bool is_yank_instance_registered(void) { YankInstanceList *list; bool ret; list = qmp_query_yank(&error_abort); ret = !!list; qapi_free_YankInstanceList(list); return ret; } static gpointer accept_thread(gpointer data) { QIOChannelSocket *ioc = data; QIOChannelSocket *cioc; cioc = qio_channel_socket_accept(ioc, &error_abort); object_unref(OBJECT(cioc)); return NULL; } static void char_change_test(gconstpointer opaque) { CharChangeTestConfig *conf = (gpointer) opaque; SocketAddress *addr; Chardev *chr; CharBackend be; ChardevReturn *ret; QIOChannelSocket *ioc; QemuThread thread; /* * Setup a listener socket and determine its address * so we know the TCP port for the client later */ ioc = qio_channel_socket_new(); g_assert_nonnull(ioc); qio_channel_socket_listen_sync(ioc, conf->addr, 1, &error_abort); addr = qio_channel_socket_get_local_address(ioc, &error_abort); g_assert_nonnull(addr); ChardevBackend backend[2] = { /* doesn't support yank */ { .type = CHARDEV_BACKEND_KIND_NULL }, /* supports yank */ { .type = CHARDEV_BACKEND_KIND_SOCKET, .u.socket.data = &(ChardevSocket) { .addr = &(SocketAddressLegacy) { .type = SOCKET_ADDRESS_LEGACY_KIND_INET, .u.inet.data = &addr->u.inet }, .has_server = true, .server = false } } }; ChardevBackend fail_backend[2] = { /* doesn't support yank */ { .type = CHARDEV_BACKEND_KIND_UDP, .u.udp.data = &(ChardevUdp) { .remote = &(SocketAddressLegacy) { .type = SOCKET_ADDRESS_LEGACY_KIND_UNIX, .u.q_unix.data = &(UnixSocketAddress) { .path = (char *)"" } } } }, /* supports yank */ { .type = CHARDEV_BACKEND_KIND_SOCKET, .u.socket.data = &(ChardevSocket) { .addr = &(SocketAddressLegacy) { .type = SOCKET_ADDRESS_LEGACY_KIND_INET, .u.inet.data = &(InetSocketAddress) { .host = (char *)"127.0.0.1", .port = (char *)"0" } }, .has_server = true, .server = false } } }; g_assert(!is_yank_instance_registered()); if (conf->old_yank) { qemu_thread_create(&thread, "accept", accept_thread, ioc, QEMU_THREAD_JOINABLE); } ret = qmp_chardev_add("chardev", &backend[conf->old_yank], &error_abort); qapi_free_ChardevReturn(ret); chr = qemu_chr_find("chardev"); g_assert_nonnull(chr); g_assert(is_yank_instance_registered() == conf->old_yank); qemu_chr_wait_connected(chr, &error_abort); if (conf->old_yank) { qemu_thread_join(&thread); } qemu_chr_fe_init(&be, chr, &error_abort); /* allow chardev-change */ qemu_chr_fe_set_handlers(&be, NULL, NULL, NULL, chardev_change, NULL, NULL, true); if (conf->fail) { g_setenv("QTEST_SILENT_ERRORS", "1", 1); ret = qmp_chardev_change("chardev", &fail_backend[conf->new_yank], NULL); g_assert_null(ret); g_assert(be.chr == chr); g_assert(is_yank_instance_registered() == conf->old_yank); g_unsetenv("QTEST_SILENT_ERRORS"); } else { if (conf->new_yank) { qemu_thread_create(&thread, "accept", accept_thread, ioc, QEMU_THREAD_JOINABLE); } ret = qmp_chardev_change("chardev", &backend[conf->new_yank], &error_abort); if (conf->new_yank) { qemu_thread_join(&thread); } g_assert_nonnull(ret); g_assert(be.chr != chr); g_assert(is_yank_instance_registered() == conf->new_yank); } object_unparent(OBJECT(be.chr)); object_unref(OBJECT(ioc)); qapi_free_ChardevReturn(ret); qapi_free_SocketAddress(addr); } static SocketAddress tcpaddr = { .type = SOCKET_ADDRESS_TYPE_INET, .u.inet.host = (char *)"127.0.0.1", .u.inet.port = (char *)"0", }; int main(int argc, char **argv) { bool has_ipv4, has_ipv6; qemu_init_main_loop(&error_abort); socket_init(); g_test_init(&argc, &argv, NULL); if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) { g_printerr("socket_check_protocol_support() failed\n"); goto end; } if (!has_ipv4) { goto end; } module_call_init(MODULE_INIT_QOM); qemu_add_opts(&qemu_chardev_opts); g_test_add_data_func("/yank/char_change/success/to_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = false, .new_yank = true, .fail = false }, char_change_test); g_test_add_data_func("/yank/char_change/fail/to_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = false, .new_yank = true, .fail = true }, char_change_test); g_test_add_data_func("/yank/char_change/success/yank_to_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = true, .new_yank = true, .fail = false }, char_change_test); g_test_add_data_func("/yank/char_change/fail/yank_to_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = true, .new_yank = true, .fail = true }, char_change_test); g_test_add_data_func("/yank/char_change/success/from_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = true, .new_yank = false, .fail = false }, char_change_test); g_test_add_data_func("/yank/char_change/fail/from_yank", &(CharChangeTestConfig) { .addr = &tcpaddr, .old_yank = true, .new_yank = false, .fail = true }, char_change_test); end: return g_test_run(); }