| 1 | #include "qemu/osdep.h" |
| 2 | #include <glib/gstdio.h> |
| 3 | #include <gio/gio.h> |
| 4 | #include "libqtest.h" |
| 5 | #include "migration/migration-qmp.h" |
| 6 | #include "dbus-vmstate1.h" |
| 7 | |
| 8 | static char *workdir; |
| 9 | |
| 10 | typedef struct TestServerId { |
| 11 | const char *name; |
| 12 | const char *data; |
| 13 | size_t size; |
| 14 | } TestServerId; |
| 15 | |
| 16 | static const TestServerId idA = { |
| 17 | "idA", "I'am\0idA!", sizeof("I'am\0idA!") |
| 18 | }; |
| 19 | |
| 20 | static const TestServerId idB = { |
| 21 | "idB", "I'am\0idB!", sizeof("I'am\0idB!") |
| 22 | }; |
| 23 | |
| 24 | typedef struct TestServer { |
| 25 | const TestServerId *id; |
| 26 | bool save_called; |
| 27 | bool load_called; |
| 28 | } TestServer; |
| 29 | |
| 30 | typedef struct Test { |
| 31 | const char *id_list; |
| 32 | int result; |
| 33 | bool without_dst_b; |
| 34 | TestServer srcA; |
| 35 | TestServer dstA; |
| 36 | TestServer srcB; |
| 37 | TestServer dstB; |
| 38 | GMainLoop *loop; |
| 39 | QTestState *src_qemu; |
| 40 | } Test; |
| 41 | |
| 42 | static gboolean |
| 43 | vmstate_load(VMState1 *object, GDBusMethodInvocation *invocation, |
| 44 | const gchar *arg_data, gpointer user_data) |
| 45 | { |
| 46 | TestServer *h = user_data; |
| 47 | g_autoptr(GVariant) var = NULL; |
| 48 | GVariant *args; |
| 49 | const uint8_t *data; |
| 50 | size_t size; |
| 51 | |
| 52 | args = g_dbus_method_invocation_get_parameters(invocation); |
| 53 | var = g_variant_get_child_value(args, 0); |
| 54 | data = g_variant_get_fixed_array(var, &size, sizeof(char)); |
| 55 | g_assert_cmpuint(size, ==, h->id->size); |
| 56 | g_assert(!memcmp(data, h->id->data, h->id->size)); |
| 57 | h->load_called = true; |
| 58 | |
| 59 | g_dbus_method_invocation_return_value(invocation, g_variant_new("()")); |
| 60 | return TRUE; |
| 61 | } |
| 62 | |
| 63 | static gboolean |
| 64 | vmstate_save(VMState1 *object, GDBusMethodInvocation *invocation, |
| 65 | gpointer user_data) |
| 66 | { |
| 67 | TestServer *h = user_data; |
| 68 | GVariant *var; |
| 69 | |
| 70 | var = g_variant_new_fixed_array(G_VARIANT_TYPE_BYTE, |
| 71 | h->id->data, h->id->size, sizeof(char)); |
| 72 | g_dbus_method_invocation_return_value(invocation, |
| 73 | g_variant_new("(@ay)", var)); |
| 74 | h->save_called = true; |
| 75 | |
| 76 | return TRUE; |
| 77 | } |
| 78 | |
| 79 | typedef struct WaitNamed { |
| 80 | GMainLoop *loop; |
| 81 | bool named; |
| 82 | } WaitNamed; |
| 83 | |
| 84 | static void |
| 85 | named_cb(GDBusConnection *connection, |
| 86 | const gchar *name, |
| 87 | gpointer user_data) |
| 88 | { |
| 89 | WaitNamed *t = user_data; |
| 90 | |
| 91 | t->named = true; |
| 92 | g_main_loop_quit(t->loop); |
| 93 | } |
| 94 | |
| 95 | static GDBusConnection * |
| 96 | get_connection(Test *test, guint *ownid) |
| 97 | { |
| 98 | g_autofree gchar *addr = NULL; |
| 99 | WaitNamed *wait; |
| 100 | GError *err = NULL; |
| 101 | GDBusConnection *c; |
| 102 | |
| 103 | wait = g_new0(WaitNamed, 1); |
| 104 | wait->loop = test->loop; |
| 105 | addr = g_dbus_address_get_for_bus_sync(G_BUS_TYPE_SESSION, NULL, &err); |
| 106 | g_assert_no_error(err); |
| 107 | |
| 108 | c = g_dbus_connection_new_for_address_sync( |
| 109 | addr, |
| 110 | G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION | |
| 111 | G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, |
| 112 | NULL, NULL, &err); |
| 113 | g_assert_no_error(err); |
| 114 | *ownid = g_bus_own_name_on_connection(c, "org.qemu.VMState1", |
| 115 | G_BUS_NAME_OWNER_FLAGS_NONE, |
| 116 | named_cb, named_cb, wait, g_free); |
| 117 | if (!wait->named) { |
| 118 | g_main_loop_run(wait->loop); |
| 119 | } |
| 120 | |
| 121 | return c; |
| 122 | } |
| 123 | |
| 124 | static GDBusObjectManagerServer * |
| 125 | get_server(GDBusConnection *conn, TestServer *s, const TestServerId *id) |
| 126 | { |
| 127 | g_autoptr(GDBusObjectSkeleton) sk = NULL; |
| 128 | g_autoptr(VMState1Skeleton) v = NULL; |
| 129 | GDBusObjectManagerServer *os; |
| 130 | |
| 131 | s->id = id; |
| 132 | os = g_dbus_object_manager_server_new("/org/qemu"); |
| 133 | sk = g_dbus_object_skeleton_new("/org/qemu/VMState1"); |
| 134 | |
| 135 | v = VMSTATE1_SKELETON(vmstate1_skeleton_new()); |
| 136 | g_object_set(v, "id", id->name, NULL); |
| 137 | |
| 138 | g_signal_connect(v, "handle-load", G_CALLBACK(vmstate_load), s); |
| 139 | g_signal_connect(v, "handle-save", G_CALLBACK(vmstate_save), s); |
| 140 | |
| 141 | g_dbus_object_skeleton_add_interface(sk, G_DBUS_INTERFACE_SKELETON(v)); |
| 142 | g_dbus_object_manager_server_export(os, sk); |
| 143 | g_dbus_object_manager_server_set_connection(os, conn); |
| 144 | |
| 145 | return os; |
| 146 | } |
| 147 | |
| 148 | static void |
| 149 | set_id_list(Test *test, QTestState *s) |
| 150 | { |
| 151 | if (!test->id_list) { |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | g_assert(!qmp_rsp_is_err(qtest_qmp(s, |
| 156 | "{ 'execute': 'qom-set', 'arguments': " |
| 157 | "{ 'path': '/objects/dv', 'property': 'id-list', 'value': %s } }", |
| 158 | test->id_list))); |
| 159 | } |
| 160 | |
| 161 | static gpointer |
| 162 | dbus_vmstate_thread(gpointer data) |
| 163 | { |
| 164 | GMainLoop *loop = data; |
| 165 | |
| 166 | g_main_loop_run(loop); |
| 167 | |
| 168 | return NULL; |
| 169 | } |
| 170 | |
| 171 | static void |
| 172 | test_dbus_vmstate(Test *test) |
| 173 | { |
| 174 | g_autofree char *src_qemu_args = NULL; |
| 175 | g_autofree char *dst_qemu_args = NULL; |
| 176 | g_autoptr(GTestDBus) srcbus = NULL; |
| 177 | g_autoptr(GTestDBus) dstbus = NULL; |
| 178 | g_autoptr(GDBusConnection) srcconnA = NULL; |
| 179 | g_autoptr(GDBusConnection) srcconnB = NULL; |
| 180 | g_autoptr(GDBusConnection) dstconnA = NULL; |
| 181 | g_autoptr(GDBusConnection) dstconnB = NULL; |
| 182 | g_autoptr(GDBusObjectManagerServer) srcserverA = NULL; |
| 183 | g_autoptr(GDBusObjectManagerServer) srcserverB = NULL; |
| 184 | g_autoptr(GDBusObjectManagerServer) dstserverA = NULL; |
| 185 | g_autoptr(GDBusObjectManagerServer) dstserverB = NULL; |
| 186 | g_auto(GStrv) srcaddr = NULL; |
| 187 | g_auto(GStrv) dstaddr = NULL; |
| 188 | g_autoptr(GThread) thread = NULL; |
| 189 | g_autoptr(GMainLoop) loop = NULL; |
| 190 | g_autofree char *uri = NULL; |
| 191 | QTestState *src_qemu = NULL, *dst_qemu = NULL; |
| 192 | guint ownsrcA, ownsrcB, owndstA, owndstB; |
| 193 | QTestMigrationState src_state = { }; |
| 194 | |
| 195 | uri = g_strdup_printf("unix:%s/migsocket", workdir); |
| 196 | |
| 197 | loop = g_main_loop_new(NULL, FALSE); |
| 198 | test->loop = loop; |
| 199 | |
| 200 | srcbus = g_test_dbus_new(G_TEST_DBUS_NONE); |
| 201 | g_test_dbus_up(srcbus); |
| 202 | srcconnA = get_connection(test, &ownsrcA); |
| 203 | srcserverA = get_server(srcconnA, &test->srcA, &idA); |
| 204 | srcconnB = get_connection(test, &ownsrcB); |
| 205 | srcserverB = get_server(srcconnB, &test->srcB, &idB); |
| 206 | |
| 207 | /* remove ,guid=foo part */ |
| 208 | srcaddr = g_strsplit(g_test_dbus_get_bus_address(srcbus), ",", 2); |
| 209 | src_qemu_args = |
| 210 | g_strdup_printf("-object dbus-vmstate,id=dv,addr=%s", srcaddr[0]); |
| 211 | |
| 212 | dstbus = g_test_dbus_new(G_TEST_DBUS_NONE); |
| 213 | g_test_dbus_up(dstbus); |
| 214 | dstconnA = get_connection(test, &owndstA); |
| 215 | dstserverA = get_server(dstconnA, &test->dstA, &idA); |
| 216 | if (!test->without_dst_b) { |
| 217 | dstconnB = get_connection(test, &owndstB); |
| 218 | dstserverB = get_server(dstconnB, &test->dstB, &idB); |
| 219 | } |
| 220 | |
| 221 | dstaddr = g_strsplit(g_test_dbus_get_bus_address(dstbus), ",", 2); |
| 222 | dst_qemu_args = |
| 223 | g_strdup_printf("-object dbus-vmstate,id=dv,addr=%s -incoming defer", |
| 224 | dstaddr[0]); |
| 225 | |
| 226 | src_qemu = qtest_init(src_qemu_args); |
| 227 | dst_qemu = qtest_init(dst_qemu_args); |
| 228 | |
| 229 | migrate_set_capability(src_qemu, "events", true); |
| 230 | qtest_qmp_set_event_callback(src_qemu, migrate_watch_for_events, |
| 231 | &src_state); |
| 232 | |
| 233 | set_id_list(test, src_qemu); |
| 234 | set_id_list(test, dst_qemu); |
| 235 | |
| 236 | thread = g_thread_new("dbus-vmstate-thread", dbus_vmstate_thread, loop); |
| 237 | |
| 238 | migrate_incoming_qmp(dst_qemu, uri, NULL, "{}"); |
| 239 | migrate_ensure_converge(src_qemu); |
| 240 | migrate_qmp(src_qemu, NULL, uri, NULL, "{}"); |
| 241 | test->src_qemu = src_qemu; |
| 242 | |
| 243 | if (test->result != MIG_TEST_SUCCEED) { |
| 244 | QDict *rsp; |
| 245 | |
| 246 | migration_event_wait(src_qemu, "failing"); |
| 247 | wait_for_resume(src_qemu, &src_state); |
| 248 | migration_event_wait(src_qemu, "failed"); |
| 249 | |
| 250 | rsp = qtest_qmp_assert_success_ref(src_qemu, |
| 251 | "{ 'execute': 'query-status' }"); |
| 252 | g_assert(qdict_haskey(rsp, "running")); |
| 253 | g_assert(qdict_get_bool(rsp, "running")); |
| 254 | qobject_unref(rsp); |
| 255 | } else { |
| 256 | wait_for_migration_complete(src_qemu); |
| 257 | } |
| 258 | |
| 259 | qtest_quit(dst_qemu); |
| 260 | qtest_quit(src_qemu); |
| 261 | g_bus_unown_name(ownsrcA); |
| 262 | g_bus_unown_name(ownsrcB); |
| 263 | g_test_dbus_down(srcbus); |
| 264 | g_bus_unown_name(owndstA); |
| 265 | if (!test->without_dst_b) { |
| 266 | g_bus_unown_name(owndstB); |
| 267 | } |
| 268 | g_test_dbus_down(dstbus); |
| 269 | g_main_loop_quit(test->loop); |
| 270 | } |
| 271 | |
| 272 | static void |
| 273 | check_not_migrated(TestServer *s, TestServer *d) |
| 274 | { |
| 275 | assert(!s->save_called); |
| 276 | assert(!s->load_called); |
| 277 | assert(!d->save_called); |
| 278 | assert(!d->load_called); |
| 279 | } |
| 280 | |
| 281 | static void |
| 282 | check_migrated(TestServer *s, TestServer *d) |
| 283 | { |
| 284 | assert(s->save_called); |
| 285 | assert(!s->load_called); |
| 286 | assert(!d->save_called); |
| 287 | assert(d->load_called); |
| 288 | } |
| 289 | |
| 290 | static void |
| 291 | test_dbus_vmstate_without_list(char *name, MigrateCommon *args) |
| 292 | { |
| 293 | Test test = { 0, }; |
| 294 | |
| 295 | test_dbus_vmstate(&test); |
| 296 | |
| 297 | check_migrated(&test.srcA, &test.dstA); |
| 298 | check_migrated(&test.srcB, &test.dstB); |
| 299 | } |
| 300 | |
| 301 | static void |
| 302 | test_dbus_vmstate_with_list(char *name, MigrateCommon *args) |
| 303 | { |
| 304 | Test test = { .id_list = "idA,idB" }; |
| 305 | |
| 306 | test_dbus_vmstate(&test); |
| 307 | |
| 308 | check_migrated(&test.srcA, &test.dstA); |
| 309 | check_migrated(&test.srcB, &test.dstB); |
| 310 | } |
| 311 | |
| 312 | static void |
| 313 | test_dbus_vmstate_only_a(char *name, MigrateCommon *args) |
| 314 | { |
| 315 | Test test = { .id_list = "idA" }; |
| 316 | |
| 317 | test_dbus_vmstate(&test); |
| 318 | |
| 319 | check_migrated(&test.srcA, &test.dstA); |
| 320 | check_not_migrated(&test.srcB, &test.dstB); |
| 321 | } |
| 322 | |
| 323 | static void |
| 324 | test_dbus_vmstate_missing_src(char *name, MigrateCommon *args) |
| 325 | { |
| 326 | Test test = { .id_list = "idA,idC", |
| 327 | .result = MIG_TEST_FAIL }; |
| 328 | bool silent = !getenv("QTEST_LOG"); |
| 329 | |
| 330 | /* run in subprocess to silence QEMU error reporting */ |
| 331 | if (silent && !g_test_subprocess()) { |
| 332 | g_test_trap_subprocess(NULL, 0, 0); |
| 333 | g_test_trap_assert_passed(); |
| 334 | return; |
| 335 | } |
| 336 | |
| 337 | test_dbus_vmstate(&test); |
| 338 | check_not_migrated(&test.srcA, &test.dstA); |
| 339 | check_not_migrated(&test.srcB, &test.dstB); |
| 340 | } |
| 341 | |
| 342 | static void |
| 343 | test_dbus_vmstate_missing_dst(char *name, MigrateCommon *args) |
| 344 | { |
| 345 | Test test = { .id_list = "idA,idB", |
| 346 | .without_dst_b = true, |
| 347 | .result = MIG_TEST_FAIL }; |
| 348 | bool silent = !getenv("QTEST_LOG"); |
| 349 | |
| 350 | /* run in subprocess to silence QEMU error reporting */ |
| 351 | if (silent && !g_test_subprocess()) { |
| 352 | g_test_trap_subprocess(NULL, 0, 0); |
| 353 | g_test_trap_assert_passed(); |
| 354 | return; |
| 355 | } |
| 356 | |
| 357 | test_dbus_vmstate(&test); |
| 358 | assert(test.srcA.save_called); |
| 359 | assert(test.srcB.save_called); |
| 360 | assert(!test.dstB.save_called); |
| 361 | } |
| 362 | |
| 363 | static void log_func(const gchar *log_domain, GLogLevelFlags log_level, |
| 364 | const gchar *message, gpointer user_data) |
| 365 | { |
| 366 | const gchar *domains; |
| 367 | |
| 368 | assert(log_level & G_LOG_LEVEL_DEBUG); |
| 369 | |
| 370 | domains = getenv("G_MESSAGES_DEBUG"); |
| 371 | if (!domains || (!strstr(domains, "GLib") && !strstr(domains, "all"))) { |
| 372 | return; |
| 373 | } |
| 374 | g_log_default_handler("GLib", G_LOG_LEVEL_DEBUG, message, NULL); |
| 375 | } |
| 376 | |
| 377 | int |
| 378 | main(int argc, char **argv) |
| 379 | { |
| 380 | GError *err = NULL; |
| 381 | int ret; |
| 382 | |
| 383 | /* |
| 384 | * GLib currently emits debug messages that ignore |
| 385 | * G_MESSAGES_DEBUG. Set a custom log handler to work around the |
| 386 | * issue. |
| 387 | */ |
| 388 | g_log_set_handler("GLib", G_LOG_LEVEL_DEBUG, log_func, NULL); |
| 389 | |
| 390 | g_test_init(&argc, &argv, NULL); |
| 391 | |
| 392 | workdir = g_dir_make_tmp("dbus-vmstate-test-XXXXXX", &err); |
| 393 | if (!workdir) { |
| 394 | g_error("Unable to create temporary dir: %s\n", err->message); |
| 395 | exit(1); |
| 396 | } |
| 397 | |
| 398 | migration_test_add("/dbus-vmstate/without-list", |
| 399 | test_dbus_vmstate_without_list); |
| 400 | migration_test_add("/dbus-vmstate/with-list", |
| 401 | test_dbus_vmstate_with_list); |
| 402 | migration_test_add("/dbus-vmstate/only-a", |
| 403 | test_dbus_vmstate_only_a); |
| 404 | migration_test_add("/dbus-vmstate/missing-src", |
| 405 | test_dbus_vmstate_missing_src); |
| 406 | migration_test_add("/dbus-vmstate/missing-dst", |
| 407 | test_dbus_vmstate_missing_dst); |
| 408 | |
| 409 | ret = g_test_run(); |
| 410 | |
| 411 | rmdir(workdir); |
| 412 | g_free(workdir); |
| 413 | |
| 414 | return ret; |
| 415 | } |