| 1 | /* |
| 2 | * Standalone VNC server connecting to QEMU via D-Bus display interface. |
| 3 | * |
| 4 | * Copyright (C) 2026 Red Hat, Inc. |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 7 | */ |
| 8 | |
| 9 | #include "qemu/osdep.h" |
| 10 | |
| 11 | #include "qemu/cutils.h" |
| 12 | #include "qemu/datadir.h" |
| 13 | #include "qemu/error-report.h" |
| 14 | #include "qemu/config-file.h" |
| 15 | #include "qemu/option.h" |
| 16 | #include "qemu/log.h" |
| 17 | #include "qemu/main-loop.h" |
| 18 | #include "qemu-version.h" |
| 19 | #include "ui/vnc.h" |
| 20 | #include "crypto/secret.h" |
| 21 | #include "crypto/tlscredsx509.h" |
| 22 | #include "qom/object_interfaces.h" |
| 23 | #include "trace.h" |
| 24 | #include "qemu-vnc.h" |
| 25 | |
| 26 | const char *qemu_name; |
| 27 | const char *keyboard_layout; |
| 28 | |
| 29 | typedef struct { |
| 30 | GDBusConnection *bus; |
| 31 | const char *bus_name; |
| 32 | const char * const *chardev_names; |
| 33 | char *terminate_reason; |
| 34 | bool no_vt; |
| 35 | bool terminate; |
| 36 | bool owner_seen; |
| 37 | bool wait_for_owner; |
| 38 | } QemuVncState; |
| 39 | |
| 40 | static GType |
| 41 | dbus_display_get_proxy_type(GDBusObjectManagerClient *manager, |
| 42 | const gchar *object_path, |
| 43 | const gchar *interface_name, |
| 44 | gpointer user_data) |
| 45 | { |
| 46 | static const struct { |
| 47 | const char *iface; |
| 48 | GType (*get_type)(void); |
| 49 | } types[] = { |
| 50 | { "org.qemu.Display1.Clipboard", |
| 51 | qemu_dbus_display1_clipboard_proxy_get_type }, |
| 52 | { "org.qemu.Display1.Audio", |
| 53 | qemu_dbus_display1_audio_proxy_get_type }, |
| 54 | { "org.qemu.Display1.Chardev", |
| 55 | qemu_dbus_display1_chardev_proxy_get_type }, |
| 56 | { "org.qemu.Display1.Chardev.VCEncoding", |
| 57 | qemu_dbus_display1_chardev_vcencoding_proxy_get_type }, |
| 58 | }; |
| 59 | |
| 60 | if (!interface_name) { |
| 61 | return G_TYPE_DBUS_OBJECT_PROXY; |
| 62 | } |
| 63 | |
| 64 | for (int i = 0; i < G_N_ELEMENTS(types); i++) { |
| 65 | if (g_str_equal(interface_name, types[i].iface)) { |
| 66 | return types[i].get_type(); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | return G_TYPE_DBUS_PROXY; |
| 71 | } |
| 72 | |
| 73 | static void |
| 74 | on_bus_closed(GDBusConnection *connection, |
| 75 | gboolean remote_peer_vanished, |
| 76 | GError *error, |
| 77 | gpointer user_data) |
| 78 | { |
| 79 | QemuVncState *state = user_data; |
| 80 | |
| 81 | state->terminate_reason = g_strdup("D-Bus connection closed"); |
| 82 | state->terminate = true; |
| 83 | qemu_notify_event(); |
| 84 | } |
| 85 | |
| 86 | static void |
| 87 | on_manager_ready(GObject *source_object, |
| 88 | GAsyncResult *res, |
| 89 | gpointer user_data) |
| 90 | { |
| 91 | QemuVncState *state = user_data; |
| 92 | g_autoptr(GError) err = NULL; |
| 93 | g_autoptr(GDBusObjectManager) manager = NULL; |
| 94 | GList *objects, *l; |
| 95 | g_autoptr(GPtrArray) console_paths = NULL; |
| 96 | bool found = false; |
| 97 | Error *local_err = NULL; |
| 98 | |
| 99 | manager = G_DBUS_OBJECT_MANAGER( |
| 100 | g_dbus_object_manager_client_new_finish(res, &err)); |
| 101 | if (!manager) { |
| 102 | error_report("Failed to create object manager: %s", |
| 103 | err->message); |
| 104 | g_assert_not_reached(); |
| 105 | return; |
| 106 | } |
| 107 | |
| 108 | /* |
| 109 | * Discover all Console objects and sort them so that console |
| 110 | * indices are assigned in a predictable order matching QEMU's. |
| 111 | */ |
| 112 | console_paths = g_ptr_array_new_with_free_func(g_free); |
| 113 | objects = g_dbus_object_manager_get_objects(manager); |
| 114 | for (l = objects; l; l = l->next) { |
| 115 | GDBusObject *obj = l->data; |
| 116 | const char *path = g_dbus_object_get_object_path(obj); |
| 117 | |
| 118 | if (g_str_has_prefix(path, DBUS_DISPLAY1_ROOT "/Console_")) { |
| 119 | g_ptr_array_add(console_paths, g_strdup(path)); |
| 120 | } |
| 121 | } |
| 122 | g_list_free_full(objects, g_object_unref); |
| 123 | |
| 124 | g_ptr_array_sort(console_paths, (GCompareFunc)qemu_pstrcmp0); |
| 125 | |
| 126 | for (guint i = 0; i < console_paths->len; i++) { |
| 127 | const char *path = g_ptr_array_index(console_paths, i); |
| 128 | |
| 129 | if (!console_setup(state->bus, state->bus_name, path)) { |
| 130 | error_report("Failed to setup console %s", path); |
| 131 | continue; |
| 132 | } |
| 133 | found = true; |
| 134 | } |
| 135 | |
| 136 | if (!found) { |
| 137 | error_report("No consoles found"); |
| 138 | state->terminate_reason = g_strdup("No consoles found"); |
| 139 | state->terminate = true; |
| 140 | qemu_notify_event(); |
| 141 | return; |
| 142 | } |
| 143 | |
| 144 | /* |
| 145 | * Create the VNC display now that consoles exist, so that the |
| 146 | * display change listener is registered against a valid console. |
| 147 | */ |
| 148 | if (!vnc_display_new("default", &local_err)) { |
| 149 | error_report("Failed to create VNC display: %s", |
| 150 | error_get_pretty(local_err)); |
| 151 | g_assert_not_reached(); |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | vnc_dbus_setup(state->bus); |
| 156 | |
| 157 | clipboard_setup(manager, state->bus); |
| 158 | audio_setup(manager); |
| 159 | if (!state->no_vt) { |
| 160 | chardev_setup(state->chardev_names, manager); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | static void |
| 165 | start_display_setup(QemuVncState *state) |
| 166 | { |
| 167 | g_autoptr(QemuDBusDisplay1VMProxy) vm_proxy = |
| 168 | QEMU_DBUS_DISPLAY1_VM_PROXY( |
| 169 | qemu_dbus_display1_vm_proxy_new_sync( |
| 170 | state->bus, G_DBUS_PROXY_FLAGS_NONE, |
| 171 | state->bus_name, |
| 172 | DBUS_DISPLAY1_ROOT "/VM", NULL, NULL)); |
| 173 | if (vm_proxy) { |
| 174 | qemu_name = g_strdup(qemu_dbus_display1_vm_get_name( |
| 175 | QEMU_DBUS_DISPLAY1_VM(vm_proxy))); |
| 176 | } |
| 177 | |
| 178 | g_dbus_object_manager_client_new( |
| 179 | state->bus, |
| 180 | G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_NONE, |
| 181 | state->bus_name, DBUS_DISPLAY1_ROOT, |
| 182 | dbus_display_get_proxy_type, |
| 183 | NULL, NULL, NULL, |
| 184 | on_manager_ready, state); |
| 185 | } |
| 186 | |
| 187 | static void |
| 188 | on_owner_appeared(GDBusConnection *connection, |
| 189 | const gchar *name, |
| 190 | const gchar *name_owner, |
| 191 | gpointer user_data) |
| 192 | { |
| 193 | QemuVncState *state = user_data; |
| 194 | |
| 195 | if (state->owner_seen) { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | info_report("D-Bus name %s appeared.", name); |
| 200 | state->owner_seen = true; |
| 201 | trace_qemu_vnc_owner_appeared(name); |
| 202 | start_display_setup(state); |
| 203 | } |
| 204 | |
| 205 | static void |
| 206 | on_owner_vanished(GDBusConnection *connection, |
| 207 | const gchar *name, |
| 208 | gpointer user_data) |
| 209 | { |
| 210 | QemuVncState *state = user_data; |
| 211 | |
| 212 | trace_qemu_vnc_owner_vanished(name); |
| 213 | |
| 214 | if (!state->owner_seen) { |
| 215 | if (state->wait_for_owner) { |
| 216 | return; |
| 217 | } |
| 218 | error_report("D-Bus name %s not found. " |
| 219 | "Is QEMU running? " |
| 220 | "Use --wait to wait for it to appear.", name); |
| 221 | state->terminate_reason = |
| 222 | g_strdup_printf("D-Bus name %s not found", name); |
| 223 | } else { |
| 224 | error_report("D-Bus peer %s vanished, terminating", name); |
| 225 | state->terminate_reason = |
| 226 | g_strdup_printf("D-Bus peer %s vanished", name); |
| 227 | } |
| 228 | |
| 229 | state->terminate = true; |
| 230 | qemu_notify_event(); |
| 231 | } |
| 232 | |
| 233 | static GDBusConnection * |
| 234 | setup_dbus_connection(int dbus_p2p_fd, const char *dbus_address, |
| 235 | char **bus_name) |
| 236 | { |
| 237 | g_autoptr(GError) err = NULL; |
| 238 | GDBusConnection *bus; |
| 239 | |
| 240 | if (dbus_p2p_fd >= 0) { |
| 241 | g_autoptr(GSocket) socket = NULL; |
| 242 | g_autoptr(GSocketConnection) socketc = NULL; |
| 243 | |
| 244 | if (*bus_name) { |
| 245 | error_report("--bus-name is not supported with --dbus-p2p-fd"); |
| 246 | return NULL; |
| 247 | } |
| 248 | |
| 249 | socket = g_socket_new_from_fd(dbus_p2p_fd, &err); |
| 250 | if (!socket) { |
| 251 | error_report("Failed to create socket from fd %d: %s", |
| 252 | dbus_p2p_fd, err->message); |
| 253 | return NULL; |
| 254 | } |
| 255 | |
| 256 | socketc = g_socket_connection_factory_create_connection(socket); |
| 257 | if (!socketc) { |
| 258 | error_report("Failed to create socket connection"); |
| 259 | return NULL; |
| 260 | } |
| 261 | |
| 262 | bus = g_dbus_connection_new_sync( |
| 263 | G_IO_STREAM(socketc), NULL, |
| 264 | G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, |
| 265 | NULL, NULL, &err); |
| 266 | } else if (dbus_address) { |
| 267 | GDBusConnectionFlags flags = |
| 268 | G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT; |
| 269 | if (*bus_name) { |
| 270 | flags |= G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION; |
| 271 | } |
| 272 | bus = g_dbus_connection_new_for_address_sync( |
| 273 | dbus_address, flags, NULL, NULL, &err); |
| 274 | } else { |
| 275 | bus = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, &err); |
| 276 | if (!*bus_name) { |
| 277 | *bus_name = g_strdup("org.qemu"); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | if (!bus) { |
| 282 | error_report("Failed to connect to D-Bus: %s", err->message); |
| 283 | } |
| 284 | |
| 285 | return bus; |
| 286 | } |
| 287 | |
| 288 | static bool |
| 289 | setup_credentials(const char *tls_creds_dir, const char *tls_authz, |
| 290 | bool *has_vnc_password) |
| 291 | { |
| 292 | Error *local_err = NULL; |
| 293 | const char *creds_dir; |
| 294 | |
| 295 | /* |
| 296 | * Set up TLS credentials if requested. The object must exist |
| 297 | * before vnc_display_open() which looks it up by ID. |
| 298 | */ |
| 299 | if (tls_creds_dir) { |
| 300 | if (!object_new_with_props(TYPE_QCRYPTO_TLS_CREDS_X509, |
| 301 | object_get_objects_root(), |
| 302 | "tlscreds0", |
| 303 | &local_err, |
| 304 | "endpoint", "server", |
| 305 | "dir", tls_creds_dir, |
| 306 | "verify-peer", tls_authz ? "yes" : "no", |
| 307 | NULL)) { |
| 308 | error_report_err(local_err); |
| 309 | return false; |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | /* |
| 314 | * Check for systemd credentials: if a vnc-password credential |
| 315 | * file exists, create a QCryptoSecret and enable VNC password auth. |
| 316 | */ |
| 317 | creds_dir = g_getenv("CREDENTIALS_DIRECTORY"); |
| 318 | if (creds_dir) { |
| 319 | g_autofree char *password_path = |
| 320 | g_build_filename(creds_dir, "vnc-password", NULL); |
| 321 | if (g_file_test(password_path, G_FILE_TEST_EXISTS)) { |
| 322 | if (!object_new_with_props(TYPE_QCRYPTO_SECRET, |
| 323 | object_get_objects_root(), |
| 324 | "vncsecret0", |
| 325 | &local_err, |
| 326 | "file", password_path, |
| 327 | NULL)) { |
| 328 | error_report_err(local_err); |
| 329 | return false; |
| 330 | } |
| 331 | *has_vnc_password = true; |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | return true; |
| 336 | } |
| 337 | |
| 338 | static bool |
| 339 | setup_vnc_opts(const char *vnc_addr, const char *tls_creds_dir, |
| 340 | const char *tls_authz, bool sasl, const char *sasl_authz, |
| 341 | bool has_vnc_password, const char *ws_addr, |
| 342 | const char *share, bool password, bool lossy, |
| 343 | bool non_adaptive) |
| 344 | { |
| 345 | g_autoptr(GString) opts_str = g_string_new(vnc_addr); |
| 346 | QemuOptsList *olist = qemu_find_opts("vnc"); |
| 347 | QemuOpts *opts; |
| 348 | |
| 349 | if (tls_creds_dir) { |
| 350 | g_string_append(opts_str, ",tls-creds=tlscreds0"); |
| 351 | } |
| 352 | if (tls_authz) { |
| 353 | g_string_append_printf(opts_str, ",tls-authz=%s", tls_authz); |
| 354 | } |
| 355 | if (sasl) { |
| 356 | g_string_append(opts_str, ",sasl=on"); |
| 357 | } |
| 358 | if (sasl_authz) { |
| 359 | g_string_append_printf(opts_str, ",sasl-authz=%s", sasl_authz); |
| 360 | } |
| 361 | if (has_vnc_password) { |
| 362 | g_string_append(opts_str, ",password-secret=vncsecret0"); |
| 363 | } |
| 364 | if (ws_addr) { |
| 365 | g_string_append_printf(opts_str, ",websocket=%s", ws_addr); |
| 366 | } |
| 367 | if (share) { |
| 368 | g_string_append_printf(opts_str, ",share=%s", share); |
| 369 | } |
| 370 | if (password && !has_vnc_password) { |
| 371 | g_string_append(opts_str, ",password=on"); |
| 372 | } |
| 373 | if (lossy) { |
| 374 | g_string_append(opts_str, ",lossy=on"); |
| 375 | } |
| 376 | if (non_adaptive) { |
| 377 | g_string_append(opts_str, ",non-adaptive=on"); |
| 378 | } |
| 379 | |
| 380 | opts = qemu_opts_parse_noisily(olist, opts_str->str, true); |
| 381 | if (!opts) { |
| 382 | return false; |
| 383 | } |
| 384 | qemu_opts_set_id(opts, g_strdup("default")); |
| 385 | return true; |
| 386 | } |
| 387 | |
| 388 | int |
| 389 | main(int argc, char *argv[]) |
| 390 | { |
| 391 | g_autoptr(GError) err = NULL; |
| 392 | g_autoptr(GDBusConnection) bus = NULL; |
| 393 | g_autofree char *dbus_address = NULL; |
| 394 | g_autofree char *bus_name = NULL; |
| 395 | int dbus_p2p_fd = -1; |
| 396 | g_autofree char *vnc_addr = NULL; |
| 397 | g_autofree char *ws_addr = NULL; |
| 398 | g_autofree char *share = NULL; |
| 399 | g_autofree char *tls_creds_dir = NULL; |
| 400 | g_autofree char *tls_authz = NULL; |
| 401 | g_autofree char *sasl_authz = NULL; |
| 402 | g_autofree char *trace_opt = NULL; |
| 403 | g_auto(GStrv) chardev_names = NULL; |
| 404 | g_auto(GStrv) object_strs = NULL; |
| 405 | QemuVncState state = { 0 }; |
| 406 | bool has_vnc_password = false; |
| 407 | bool show_version = false; |
| 408 | bool no_vt = false; |
| 409 | bool wait_for_owner = false; |
| 410 | bool password = false; |
| 411 | bool sasl = false; |
| 412 | bool lossy = false; |
| 413 | bool non_adaptive = false; |
| 414 | g_autoptr(GOptionContext) context = NULL; |
| 415 | GOptionEntry entries[] = { |
| 416 | { "dbus-address", 'a', 0, G_OPTION_ARG_STRING, &dbus_address, |
| 417 | "D-Bus address to connect to (default: session bus)", "ADDRESS" }, |
| 418 | { "dbus-p2p-fd", 'p', 0, G_OPTION_ARG_INT, &dbus_p2p_fd, |
| 419 | "D-Bus peer-to-peer socket file descriptor", "FD" }, |
| 420 | { "bus-name", 'n', 0, G_OPTION_ARG_STRING, &bus_name, |
| 421 | "D-Bus bus name (default: org.qemu)", "NAME" }, |
| 422 | { "wait", 'W', 0, G_OPTION_ARG_NONE, &wait_for_owner, |
| 423 | "Wait for the D-Bus name to appear", NULL }, |
| 424 | { "vnc-addr", 'l', 0, G_OPTION_ARG_STRING, &vnc_addr, |
| 425 | "VNC display address (default localhost:0, \"none\" to disable)", |
| 426 | "ADDR" }, |
| 427 | { "websocket", 'w', 0, G_OPTION_ARG_STRING, &ws_addr, |
| 428 | "WebSocket address (e.g. port number or addr:port)", "ADDR" }, |
| 429 | { "share", 's', 0, G_OPTION_ARG_STRING, &share, |
| 430 | "Display sharing policy " |
| 431 | "(allow-exclusive|force-shared|ignore)", "POLICY" }, |
| 432 | { "tls-creds", 't', 0, G_OPTION_ARG_STRING, &tls_creds_dir, |
| 433 | "TLS x509 credentials directory", "DIR" }, |
| 434 | { "tls-authz", 0, 0, G_OPTION_ARG_STRING, &tls_authz, |
| 435 | "ID of a QAuthZ object for TLS client certificate " |
| 436 | "authorization", "ID" }, |
| 437 | { "object", 'O', 0, G_OPTION_ARG_STRING_ARRAY, &object_strs, |
| 438 | "QEMU user-creatable object " |
| 439 | "(e.g. authz-list-file,id=auth0,filename=acl.json)", "OBJDEF" }, |
| 440 | { "vt-chardev", 'C', 0, G_OPTION_ARG_STRING_ARRAY, &chardev_names, |
| 441 | "Chardev type names to expose as text console (repeatable, " |
| 442 | "default: serial & hmp)", "NAME" }, |
| 443 | { "no-vt", 'N', 0, G_OPTION_ARG_NONE, &no_vt, |
| 444 | "Do not expose any chardevs as text consoles", NULL }, |
| 445 | { "keyboard-layout", 'k', 0, G_OPTION_ARG_STRING, &keyboard_layout, |
| 446 | "Keyboard layout", "LAYOUT" }, |
| 447 | { "trace", 'T', 0, G_OPTION_ARG_STRING, &trace_opt, |
| 448 | "Trace options (same as QEMU -trace)", "PATTERN" }, |
| 449 | { "version", 'V', 0, G_OPTION_ARG_NONE, &show_version, |
| 450 | "Print version information and exit", NULL }, |
| 451 | { "password", 0, 0, G_OPTION_ARG_NONE, &password, |
| 452 | "Require password authentication (use D-Bus SetPassword to set)", |
| 453 | NULL }, |
| 454 | { "lossy", 0, 0, G_OPTION_ARG_NONE, &lossy, |
| 455 | "Enable lossy compression", NULL }, |
| 456 | { "non-adaptive", 0, 0, G_OPTION_ARG_NONE, &non_adaptive, |
| 457 | "Disable adaptive encodings", NULL }, |
| 458 | { "sasl", 0, 0, G_OPTION_ARG_NONE, &sasl, |
| 459 | "Enable SASL authentication", NULL }, |
| 460 | { "sasl-authz", 0, 0, G_OPTION_ARG_STRING, &sasl_authz, |
| 461 | "ID of a QAuthZ object for SASL username " |
| 462 | "authorization", "ID" }, |
| 463 | { NULL } |
| 464 | }; |
| 465 | |
| 466 | qemu_init_exec_dir(argv[0]); |
| 467 | qemu_add_data_dir(g_strdup(CONFIG_QEMU_DATADIR)); |
| 468 | qemu_add_data_dir(get_relocated_path(CONFIG_QEMU_DATADIR)); |
| 469 | |
| 470 | module_call_init(MODULE_INIT_TRACE); |
| 471 | module_call_init(MODULE_INIT_QOM); |
| 472 | module_call_init(MODULE_INIT_OPTS); |
| 473 | qemu_add_opts(&qemu_trace_opts); |
| 474 | |
| 475 | context = g_option_context_new(NULL); |
| 476 | g_option_context_set_summary(context, |
| 477 | "Standalone VNC server connecting to a QEMU instance via the\n" |
| 478 | "D-Bus display interface (org.qemu.Display1)."); |
| 479 | g_option_context_add_main_entries(context, entries, NULL); |
| 480 | if (!g_option_context_parse(context, &argc, &argv, &err)) { |
| 481 | error_report("Option parsing failed: %s", err->message); |
| 482 | return 1; |
| 483 | } |
| 484 | |
| 485 | if (show_version) { |
| 486 | printf("qemu-vnc " QEMU_FULL_VERSION "\n"); |
| 487 | return 0; |
| 488 | } |
| 489 | |
| 490 | if (trace_opt) { |
| 491 | trace_opt_parse(trace_opt); |
| 492 | qemu_set_log(LOG_TRACE, &error_fatal); |
| 493 | } |
| 494 | trace_init_file(); |
| 495 | |
| 496 | qemu_init_main_loop(&error_fatal); |
| 497 | |
| 498 | if (!vnc_addr) { |
| 499 | vnc_addr = g_strdup("localhost:0"); |
| 500 | } |
| 501 | |
| 502 | if (object_strs) { |
| 503 | for (int i = 0; object_strs[i]; i++) { |
| 504 | user_creatable_process_cmdline(object_strs[i]); |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | if (tls_authz && !tls_creds_dir) { |
| 509 | error_report("--tls-authz requires --tls-creds"); |
| 510 | return 1; |
| 511 | } |
| 512 | |
| 513 | if (sasl_authz && !sasl) { |
| 514 | error_report("--sasl-authz requires --sasl"); |
| 515 | return 1; |
| 516 | } |
| 517 | |
| 518 | if (dbus_p2p_fd >= 0 && dbus_address) { |
| 519 | error_report("--dbus-p2p-fd and --dbus-address are" |
| 520 | " mutually exclusive"); |
| 521 | return 1; |
| 522 | } |
| 523 | |
| 524 | if (wait_for_owner && dbus_p2p_fd >= 0) { |
| 525 | error_report("--wait is not supported with --dbus-p2p-fd"); |
| 526 | return 1; |
| 527 | } |
| 528 | |
| 529 | bus = setup_dbus_connection(dbus_p2p_fd, dbus_address, &bus_name); |
| 530 | if (!bus) { |
| 531 | return 1; |
| 532 | } |
| 533 | |
| 534 | if (wait_for_owner && !bus_name) { |
| 535 | error_report("--wait requires a D-Bus bus name (--bus-name)"); |
| 536 | return 1; |
| 537 | } |
| 538 | |
| 539 | if (!setup_credentials(tls_creds_dir, tls_authz, &has_vnc_password)) { |
| 540 | return 1; |
| 541 | } |
| 542 | |
| 543 | if (!setup_vnc_opts(vnc_addr, tls_creds_dir, tls_authz, sasl, sasl_authz, |
| 544 | has_vnc_password, ws_addr, share, password, lossy, |
| 545 | non_adaptive)) { |
| 546 | return 1; |
| 547 | } |
| 548 | |
| 549 | state.bus = bus; |
| 550 | state.bus_name = bus_name; |
| 551 | state.chardev_names = (const char * const *)chardev_names; |
| 552 | state.no_vt = no_vt; |
| 553 | state.wait_for_owner = wait_for_owner; |
| 554 | |
| 555 | g_signal_connect(bus, "closed", G_CALLBACK(on_bus_closed), &state); |
| 556 | |
| 557 | if (bus_name) { |
| 558 | if (wait_for_owner) { |
| 559 | info_report("Waiting for D-Bus name %s to appear...", bus_name); |
| 560 | } |
| 561 | g_bus_watch_name_on_connection(bus, bus_name, |
| 562 | G_BUS_NAME_WATCHER_FLAGS_NONE, |
| 563 | on_owner_appeared, |
| 564 | on_owner_vanished, |
| 565 | &state, NULL); |
| 566 | } else { |
| 567 | state.owner_seen = true; |
| 568 | start_display_setup(&state); |
| 569 | } |
| 570 | |
| 571 | while (!state.terminate) { |
| 572 | main_loop_wait(false); |
| 573 | } |
| 574 | |
| 575 | vnc_dbus_emit_leaving(state.terminate_reason ?: "Shutting down"); |
| 576 | vnc_dbus_cleanup(); |
| 577 | vnc_cleanup(); |
| 578 | g_free(state.terminate_reason); |
| 579 | |
| 580 | return 0; |
| 581 | } |