ui/spice-core.c

   1 /*
   2  * Copyright (C) 2010 Red Hat, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 or
   7  * (at your option) version 3 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <spice.h>
  19 #include <spice-experimental.h>
  20
  21 #include <netdb.h>
  22 #include <pthread.h>
  23
  24 #include "qemu-common.h"
  25 #include "qemu-spice.h"
  26 #include "qemu-timer.h"
  27 #include "qemu-queue.h"
  28 #include "qemu-x509.h"
  29 #include "qemu_socket.h"
  30 #include "qmp-commands.h"
  31 #include "qint.h"
  32 #include "qbool.h"
  33 #include "qstring.h"
  34 #include "qjson.h"
  35 #include "notify.h"
  36 #include "migration.h"
  37 #include "monitor.h"
  38 #include "hw/hw.h"
  39
  40 /* core bits */
  41
  42 static SpiceServer *spice_server;
  43 static Notifier migration_state;
  44 static const char *auth = "spice";
  45 static char *auth_passwd;
  46 static time_t auth_expires = TIME_MAX;
  47 int using_spice = 0;
  48
  49 static pthread_t me;
  50
  51 struct SpiceTimer {
  52     QEMUTimer *timer;
  53     QTAILQ_ENTRY(SpiceTimer) next;
  54 };
  55 static QTAILQ_HEAD(, SpiceTimer) timers = QTAILQ_HEAD_INITIALIZER(timers);
  56
  57 static SpiceTimer *timer_add(SpiceTimerFunc func, void *opaque)
  58 {
  59     SpiceTimer *timer;
  60
  61     timer = g_malloc0(sizeof(*timer));
  62     timer->timer = qemu_new_timer_ms(rt_clock, func, opaque);
  63     QTAILQ_INSERT_TAIL(&timers, timer, next);
  64     return timer;
  65 }
  66
  67 static void timer_start(SpiceTimer *timer, uint32_t ms)
  68 {
  69     qemu_mod_timer(timer->timer, qemu_get_clock_ms(rt_clock) + ms);
  70 }
  71
  72 static void timer_cancel(SpiceTimer *timer)
  73 {
  74     qemu_del_timer(timer->timer);
  75 }
  76
  77 static void timer_remove(SpiceTimer *timer)
  78 {
  79     qemu_del_timer(timer->timer);
  80     qemu_free_timer(timer->timer);
  81     QTAILQ_REMOVE(&timers, timer, next);
  82     g_free(timer);
  83 }
  84
  85 struct SpiceWatch {
  86     int fd;
  87     int event_mask;
  88     SpiceWatchFunc func;
  89     void *opaque;
  90     QTAILQ_ENTRY(SpiceWatch) next;
  91 };
  92 static QTAILQ_HEAD(, SpiceWatch) watches = QTAILQ_HEAD_INITIALIZER(watches);
  93
  94 static void watch_read(void *opaque)
  95 {
  96     SpiceWatch *watch = opaque;
  97     watch->func(watch->fd, SPICE_WATCH_EVENT_READ, watch->opaque);
  98 }
  99
 100 static void watch_write(void *opaque)
 101 {
 102     SpiceWatch *watch = opaque;
 103     watch->func(watch->fd, SPICE_WATCH_EVENT_WRITE, watch->opaque);
 104 }
 105
 106 static void watch_update_mask(SpiceWatch *watch, int event_mask)
 107 {
 108     IOHandler *on_read = NULL;
 109     IOHandler *on_write = NULL;
 110
 111     watch->event_mask = event_mask;
 112     if (watch->event_mask & SPICE_WATCH_EVENT_READ) {
 113         on_read = watch_read;
 114     }
 115     if (watch->event_mask & SPICE_WATCH_EVENT_WRITE) {
 116         on_write = watch_write;
 117     }
 118     qemu_set_fd_handler(watch->fd, on_read, on_write, watch);
 119 }
 120
 121 static SpiceWatch *watch_add(int fd, int event_mask, SpiceWatchFunc func, void *opaque)
 122 {
 123     SpiceWatch *watch;
 124
 125     watch = g_malloc0(sizeof(*watch));
 126     watch->fd     = fd;
 127     watch->func   = func;
 128     watch->opaque = opaque;
 129     QTAILQ_INSERT_TAIL(&watches, watch, next);
 130
 131     watch_update_mask(watch, event_mask);
 132     return watch;
 133 }
 134
 135 static void watch_remove(SpiceWatch *watch)
 136 {
 137     watch_update_mask(watch, 0);
 138     QTAILQ_REMOVE(&watches, watch, next);
 139     g_free(watch);
 140 }
 141
 142 #if SPICE_INTERFACE_CORE_MINOR >= 3
 143
 144 typedef struct ChannelList ChannelList;
 145 struct ChannelList {
 146     SpiceChannelEventInfo *info;
 147     QTAILQ_ENTRY(ChannelList) link;
 148 };
 149 static QTAILQ_HEAD(, ChannelList) channel_list = QTAILQ_HEAD_INITIALIZER(channel_list);
 150
 151 static void channel_list_add(SpiceChannelEventInfo *info)
 152 {
 153     ChannelList *item;
 154
 155     item = g_malloc0(sizeof(*item));
 156     item->info = info;
 157     QTAILQ_INSERT_TAIL(&channel_list, item, link);
 158 }
 159
 160 static void channel_list_del(SpiceChannelEventInfo *info)
 161 {
 162     ChannelList *item;
 163
 164     QTAILQ_FOREACH(item, &channel_list, link) {
 165         if (item->info != info) {
 166             continue;
 167         }
 168         QTAILQ_REMOVE(&channel_list, item, link);
 169         g_free(item);
 170         return;
 171     }
 172 }
 173
 174 static void add_addr_info(QDict *dict, struct sockaddr *addr, int len)
 175 {
 176     char host[NI_MAXHOST], port[NI_MAXSERV];
 177     const char *family;
 178
 179     getnameinfo(addr, len, host, sizeof(host), port, sizeof(port),
 180                 NI_NUMERICHOST | NI_NUMERICSERV);
 181     family = inet_strfamily(addr->sa_family);
 182
 183     qdict_put(dict, "host", qstring_from_str(host));
 184     qdict_put(dict, "port", qstring_from_str(port));
 185     qdict_put(dict, "family", qstring_from_str(family));
 186 }
 187
 188 static void add_channel_info(QDict *dict, SpiceChannelEventInfo *info)
 189 {
 190     int tls = info->flags & SPICE_CHANNEL_EVENT_FLAG_TLS;
 191
 192     qdict_put(dict, "connection-id", qint_from_int(info->connection_id));
 193     qdict_put(dict, "channel-type", qint_from_int(info->type));
 194     qdict_put(dict, "channel-id", qint_from_int(info->id));
 195     qdict_put(dict, "tls", qbool_from_int(tls));
 196 }
 197
 198 static void channel_event(int event, SpiceChannelEventInfo *info)
 199 {
 200     static const int qevent[] = {
 201         [ SPICE_CHANNEL_EVENT_CONNECTED    ] = QEVENT_SPICE_CONNECTED,
 202         [ SPICE_CHANNEL_EVENT_INITIALIZED  ] = QEVENT_SPICE_INITIALIZED,
 203         [ SPICE_CHANNEL_EVENT_DISCONNECTED ] = QEVENT_SPICE_DISCONNECTED,
 204     };
 205     QDict *server, *client;
 206     QObject *data;
 207
 208     /*
 209      * Spice server might have called us from spice worker thread
 210      * context (happens on display channel disconnects).  Spice should
 211      * not do that.  It isn't that easy to fix it in spice and even
 212      * when it is fixed we still should cover the already released
 213      * spice versions.  So detect that we've been called from another
 214      * thread and grab the iothread lock if so before calling qemu
 215      * functions.
 216      */
 217     bool need_lock = !pthread_equal(me, pthread_self());
 218     if (need_lock) {
 219         qemu_mutex_lock_iothread();
 220     }
 221
 222     client = qdict_new();
 223     add_addr_info(client, &info->paddr, info->plen);
 224
 225     server = qdict_new();
 226     add_addr_info(server, &info->laddr, info->llen);
 227
 228     if (event == SPICE_CHANNEL_EVENT_INITIALIZED) {
 229         qdict_put(server, "auth", qstring_from_str(auth));
 230         add_channel_info(client, info);
 231         channel_list_add(info);
 232     }
 233     if (event == SPICE_CHANNEL_EVENT_DISCONNECTED) {
 234         channel_list_del(info);
 235     }
 236
 237     data = qobject_from_jsonf("{ 'client': %p, 'server': %p }",
 238                               QOBJECT(client), QOBJECT(server));
 239     monitor_protocol_event(qevent[event], data);
 240     qobject_decref(data);
 241
 242     if (need_lock) {
 243         qemu_mutex_unlock_iothread();
 244     }
 245 }
 246
 247 #else /* SPICE_INTERFACE_CORE_MINOR >= 3 */
 248
 249 static QList *channel_list_get(void)
 250 {
 251     return NULL;
 252 }
 253
 254 #endif /* SPICE_INTERFACE_CORE_MINOR >= 3 */
 255
 256 static SpiceCoreInterface core_interface = {
 257     .base.type          = SPICE_INTERFACE_CORE,
 258     .base.description   = "qemu core services",
 259     .base.major_version = SPICE_INTERFACE_CORE_MAJOR,
 260     .base.minor_version = SPICE_INTERFACE_CORE_MINOR,
 261
 262     .timer_add          = timer_add,
 263     .timer_start        = timer_start,
 264     .timer_cancel       = timer_cancel,
 265     .timer_remove       = timer_remove,
 266
 267     .watch_add          = watch_add,
 268     .watch_update_mask  = watch_update_mask,
 269     .watch_remove       = watch_remove,
 270
 271 #if SPICE_INTERFACE_CORE_MINOR >= 3
 272     .channel_event      = channel_event,
 273 #endif
 274 };
 275
 276 /* config string parsing */
 277
 278 static int name2enum(const char *string, const char *table[], int entries)
 279 {
 280     int i;
 281
 282     if (string) {
 283         for (i = 0; i < entries; i++) {
 284             if (!table[i]) {
 285                 continue;
 286             }
 287             if (strcmp(string, table[i]) != 0) {
 288                 continue;
 289             }
 290             return i;
 291         }
 292     }
 293     return -1;
 294 }
 295
 296 static int parse_name(const char *string, const char *optname,
 297                       const char *table[], int entries)
 298 {
 299     int value = name2enum(string, table, entries);
 300
 301     if (value != -1) {
 302         return value;
 303     }
 304     fprintf(stderr, "spice: invalid %s: %s\n", optname, string);
 305     exit(1);
 306 }
 307
 308 static const char *stream_video_names[] = {
 309     [ SPICE_STREAM_VIDEO_OFF ]    = "off",
 310     [ SPICE_STREAM_VIDEO_ALL ]    = "all",
 311     [ SPICE_STREAM_VIDEO_FILTER ] = "filter",
 312 };
 313 #define parse_stream_video(_name) \
 314     name2enum(_name, stream_video_names, ARRAY_SIZE(stream_video_names))
 315
 316 static const char *compression_names[] = {
 317     [ SPICE_IMAGE_COMPRESS_OFF ]      = "off",
 318     [ SPICE_IMAGE_COMPRESS_AUTO_GLZ ] = "auto_glz",
 319     [ SPICE_IMAGE_COMPRESS_AUTO_LZ ]  = "auto_lz",
 320     [ SPICE_IMAGE_COMPRESS_QUIC ]     = "quic",
 321     [ SPICE_IMAGE_COMPRESS_GLZ ]      = "glz",
 322     [ SPICE_IMAGE_COMPRESS_LZ ]       = "lz",
 323 };
 324 #define parse_compression(_name)                                        \
 325     parse_name(_name, "image compression",                              \
 326                compression_names, ARRAY_SIZE(compression_names))
 327
 328 static const char *wan_compression_names[] = {
 329     [ SPICE_WAN_COMPRESSION_AUTO   ] = "auto",
 330     [ SPICE_WAN_COMPRESSION_NEVER  ] = "never",
 331     [ SPICE_WAN_COMPRESSION_ALWAYS ] = "always",
 332 };
 333 #define parse_wan_compression(_name)                                    \
 334     parse_name(_name, "wan compression",                                \
 335                wan_compression_names, ARRAY_SIZE(wan_compression_names))
 336
 337 /* functions for the rest of qemu */
 338
 339 static SpiceChannelList *qmp_query_spice_channels(void)
 340 {
 341     SpiceChannelList *cur_item = NULL, *head = NULL;
 342     ChannelList *item;
 343
 344     QTAILQ_FOREACH(item, &channel_list, link) {
 345         SpiceChannelList *chan;
 346         char host[NI_MAXHOST], port[NI_MAXSERV];
 347
 348         chan = g_malloc0(sizeof(*chan));
 349         chan->value = g_malloc0(sizeof(*chan->value));
 350
 351         getnameinfo(&item->info->paddr, item->info->plen,
 352                     host, sizeof(host), port, sizeof(port),
 353                     NI_NUMERICHOST | NI_NUMERICSERV);
 354         chan->value->host = g_strdup(host);
 355         chan->value->port = g_strdup(port);
 356         chan->value->family = g_strdup(inet_strfamily(item->info->paddr.sa_family));
 357
 358         chan->value->connection_id = item->info->connection_id;
 359         chan->value->channel_type = item->info->type;
 360         chan->value->channel_id = item->info->id;
 361         chan->value->tls = item->info->flags & SPICE_CHANNEL_EVENT_FLAG_TLS;
 362
 363        /* XXX: waiting for the qapi to support GSList */
 364         if (!cur_item) {
 365             head = cur_item = chan;
 366         } else {
 367             cur_item->next = chan;
 368             cur_item = chan;
 369         }
 370     }
 371
 372     return head;
 373 }
 374
 375 SpiceInfo *qmp_query_spice(Error **errp)
 376 {
 377     QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head);
 378     int port, tls_port;
 379     const char *addr;
 380     SpiceInfo *info;
 381     char version_string[20]; /* 12 = |255.255.255\0| is the max */
 382
 383     info = g_malloc0(sizeof(*info));
 384
 385     if (!spice_server) {
 386         info->enabled = false;
 387         return info;
 388     }
 389
 390     info->enabled = true;
 391
 392     addr = qemu_opt_get(opts, "addr");
 393     port = qemu_opt_get_number(opts, "port", 0);
 394     tls_port = qemu_opt_get_number(opts, "tls-port", 0);
 395
 396     info->has_auth = true;
 397     info->auth = g_strdup(auth);
 398
 399     info->has_host = true;
 400     info->host = g_strdup(addr ? addr : "0.0.0.0");
 401
 402     info->has_compiled_version = true;
 403     snprintf(version_string, sizeof(version_string), "%d.%d.%d",
 404              (SPICE_SERVER_VERSION & 0xff0000) >> 16,
 405              (SPICE_SERVER_VERSION & 0xff00) >> 8,
 406              SPICE_SERVER_VERSION & 0xff);
 407     info->compiled_version = g_strdup(version_string);
 408
 409     if (port) {
 410         info->has_port = true;
 411         info->port = port;
 412     }
 413     if (tls_port) {
 414         info->has_tls_port = true;
 415         info->tls_port = tls_port;
 416     }
 417
 418     /* for compatibility with the original command */
 419     info->has_channels = true;
 420     info->channels = qmp_query_spice_channels();
 421
 422     return info;
 423 }
 424
 425 static void migration_state_notifier(Notifier *notifier, void *data)
 426 {
 427     MigrationState *s = data;
 428
 429     if (migration_has_finished(s)) {
 430 #if SPICE_SERVER_VERSION >= 0x000701 /* 0.7.1 */
 431         spice_server_migrate_switch(spice_server);
 432 #endif
 433     }
 434 }
 435
 436 int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
 437                             const char *subject)
 438 {
 439     return spice_server_migrate_info(spice_server, hostname,
 440                                      port, tls_port, subject);
 441 }
 442
 443 static int add_channel(const char *name, const char *value, void *opaque)
 444 {
 445     int security = 0;
 446     int rc;
 447
 448     if (strcmp(name, "tls-channel") == 0) {
 449         security = SPICE_CHANNEL_SECURITY_SSL;
 450     }
 451     if (strcmp(name, "plaintext-channel") == 0) {
 452         security = SPICE_CHANNEL_SECURITY_NONE;
 453     }
 454     if (security == 0) {
 455         return 0;
 456     }
 457     if (strcmp(value, "default") == 0) {
 458         rc = spice_server_set_channel_security(spice_server, NULL, security);
 459     } else {
 460         rc = spice_server_set_channel_security(spice_server, value, security);
 461     }
 462     if (rc != 0) {
 463         fprintf(stderr, "spice: failed to set channel security for %s\n", value);
 464         exit(1);
 465     }
 466     return 0;
 467 }
 468
 469 void qemu_spice_init(void)
 470 {
 471     QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head);
 472     const char *password, *str, *x509_dir, *addr,
 473         *x509_key_password = NULL,
 474         *x509_dh_file = NULL,
 475         *tls_ciphers = NULL;
 476     char *x509_key_file = NULL,
 477         *x509_cert_file = NULL,
 478         *x509_cacert_file = NULL;
 479     int port, tls_port, len, addr_flags;
 480     spice_image_compression_t compression;
 481     spice_wan_compression_t wan_compr;
 482
 483     me = pthread_self();
 484
 485    if (!opts) {
 486         return;
 487     }
 488     port = qemu_opt_get_number(opts, "port", 0);
 489     tls_port = qemu_opt_get_number(opts, "tls-port", 0);
 490     if (!port && !tls_port) {
 491         fprintf(stderr, "neither port nor tls-port specified for spice.");
 492         exit(1);
 493     }
 494     if (port < 0 || port > 65535) {
 495         fprintf(stderr, "spice port is out of range");
 496         exit(1);
 497     }
 498     if (tls_port < 0 || tls_port > 65535) {
 499         fprintf(stderr, "spice tls-port is out of range");
 500         exit(1);
 501     }
 502     password = qemu_opt_get(opts, "password");
 503
 504     if (tls_port) {
 505         x509_dir = qemu_opt_get(opts, "x509-dir");
 506         if (NULL == x509_dir) {
 507             x509_dir = ".";
 508         }
 509         len = strlen(x509_dir) + 32;
 510
 511         str = qemu_opt_get(opts, "x509-key-file");
 512         if (str) {
 513             x509_key_file = g_strdup(str);
 514         } else {
 515             x509_key_file = g_malloc(len);
 516             snprintf(x509_key_file, len, "%s/%s", x509_dir, X509_SERVER_KEY_FILE);
 517         }
 518
 519         str = qemu_opt_get(opts, "x509-cert-file");
 520         if (str) {
 521             x509_cert_file = g_strdup(str);
 522         } else {
 523             x509_cert_file = g_malloc(len);
 524             snprintf(x509_cert_file, len, "%s/%s", x509_dir, X509_SERVER_CERT_FILE);
 525         }
 526
 527         str = qemu_opt_get(opts, "x509-cacert-file");
 528         if (str) {
 529             x509_cacert_file = g_strdup(str);
 530         } else {
 531             x509_cacert_file = g_malloc(len);
 532             snprintf(x509_cacert_file, len, "%s/%s", x509_dir, X509_CA_CERT_FILE);
 533         }
 534
 535         x509_key_password = qemu_opt_get(opts, "x509-key-password");
 536         x509_dh_file = qemu_opt_get(opts, "x509-dh-file");
 537         tls_ciphers = qemu_opt_get(opts, "tls-ciphers");
 538     }
 539
 540     addr = qemu_opt_get(opts, "addr");
 541     addr_flags = 0;
 542     if (qemu_opt_get_bool(opts, "ipv4", 0)) {
 543         addr_flags |= SPICE_ADDR_FLAG_IPV4_ONLY;
 544     } else if (qemu_opt_get_bool(opts, "ipv6", 0)) {
 545         addr_flags |= SPICE_ADDR_FLAG_IPV6_ONLY;
 546     }
 547
 548     spice_server = spice_server_new();
 549     spice_server_set_addr(spice_server, addr ? addr : "", addr_flags);
 550     if (port) {
 551         spice_server_set_port(spice_server, port);
 552     }
 553     if (tls_port) {
 554         spice_server_set_tls(spice_server, tls_port,
 555                              x509_cacert_file,
 556                              x509_cert_file,
 557                              x509_key_file,
 558                              x509_key_password,
 559                              x509_dh_file,
 560                              tls_ciphers);
 561     }
 562     if (password) {
 563         spice_server_set_ticket(spice_server, password, 0, 0, 0);
 564     }
 565     if (qemu_opt_get_bool(opts, "sasl", 0)) {
 566 #if SPICE_SERVER_VERSION >= 0x000900 /* 0.9.0 */
 567         if (spice_server_set_sasl_appname(spice_server, "qemu") == -1 ||
 568             spice_server_set_sasl(spice_server, 1) == -1) {
 569             fprintf(stderr, "spice: failed to enable sasl\n");
 570             exit(1);
 571         }
 572 #else
 573         fprintf(stderr, "spice: sasl is not available (spice >= 0.9 required)\n");
 574         exit(1);
 575 #endif
 576     }
 577     if (qemu_opt_get_bool(opts, "disable-ticketing", 0)) {
 578         auth = "none";
 579         spice_server_set_noauth(spice_server);
 580     }
 581
 582 #if SPICE_SERVER_VERSION >= 0x000801
 583     if (qemu_opt_get_bool(opts, "disable-copy-paste", 0)) {
 584         spice_server_set_agent_copypaste(spice_server, false);
 585     }
 586 #endif
 587
 588     compression = SPICE_IMAGE_COMPRESS_AUTO_GLZ;
 589     str = qemu_opt_get(opts, "image-compression");
 590     if (str) {
 591         compression = parse_compression(str);
 592     }
 593     spice_server_set_image_compression(spice_server, compression);
 594
 595     wan_compr = SPICE_WAN_COMPRESSION_AUTO;
 596     str = qemu_opt_get(opts, "jpeg-wan-compression");
 597     if (str) {
 598         wan_compr = parse_wan_compression(str);
 599     }
 600     spice_server_set_jpeg_compression(spice_server, wan_compr);
 601
 602     wan_compr = SPICE_WAN_COMPRESSION_AUTO;
 603     str = qemu_opt_get(opts, "zlib-glz-wan-compression");
 604     if (str) {
 605         wan_compr = parse_wan_compression(str);
 606     }
 607     spice_server_set_zlib_glz_compression(spice_server, wan_compr);
 608
 609     str = qemu_opt_get(opts, "streaming-video");
 610     if (str) {
 611         int streaming_video = parse_stream_video(str);
 612         spice_server_set_streaming_video(spice_server, streaming_video);
 613     }
 614
 615     spice_server_set_agent_mouse
 616         (spice_server, qemu_opt_get_bool(opts, "agent-mouse", 1));
 617     spice_server_set_playback_compression
 618         (spice_server, qemu_opt_get_bool(opts, "playback-compression", 1));
 619
 620     qemu_opt_foreach(opts, add_channel, NULL, 0);
 621
 622     if (0 != spice_server_init(spice_server, &core_interface)) {
 623         fprintf(stderr, "failed to initialize spice server");
 624         exit(1);
 625     };
 626     using_spice = 1;
 627
 628     migration_state.notify = migration_state_notifier;
 629     add_migration_state_change_notifier(&migration_state);
 630
 631     qemu_spice_input_init();
 632     qemu_spice_audio_init();
 633
 634     g_free(x509_key_file);
 635     g_free(x509_cert_file);
 636     g_free(x509_cacert_file);
 637 }
 638
 639 int qemu_spice_add_interface(SpiceBaseInstance *sin)
 640 {
 641     if (!spice_server) {
 642         if (QTAILQ_FIRST(&qemu_spice_opts.head) != NULL) {
 643             fprintf(stderr, "Oops: spice configured but not active\n");
 644             exit(1);
 645         }
 646         /*
 647          * Create a spice server instance.
 648          * It does *not* listen on the network.
 649          * It handles QXL local rendering only.
 650          *
 651          * With a command line like '-vnc :0 -vga qxl' you'll end up here.
 652          */
 653         spice_server = spice_server_new();
 654         spice_server_init(spice_server, &core_interface);
 655     }
 656     return spice_server_add_interface(spice_server, sin);
 657 }
 658
 659 static int qemu_spice_set_ticket(bool fail_if_conn, bool disconnect_if_conn)
 660 {
 661     time_t lifetime, now = time(NULL);
 662     char *passwd;
 663
 664     if (now < auth_expires) {
 665         passwd = auth_passwd;
 666         lifetime = (auth_expires - now);
 667         if (lifetime > INT_MAX) {
 668             lifetime = INT_MAX;
 669         }
 670     } else {
 671         passwd = NULL;
 672         lifetime = 1;
 673     }
 674     return spice_server_set_ticket(spice_server, passwd, lifetime,
 675                                    fail_if_conn, disconnect_if_conn);
 676 }
 677
 678 int qemu_spice_set_passwd(const char *passwd,
 679                           bool fail_if_conn, bool disconnect_if_conn)
 680 {
 681     free(auth_passwd);
 682     auth_passwd = strdup(passwd);
 683     return qemu_spice_set_ticket(fail_if_conn, disconnect_if_conn);
 684 }
 685
 686 int qemu_spice_set_pw_expire(time_t expires)
 687 {
 688     auth_expires = expires;
 689     return qemu_spice_set_ticket(false, false);
 690 }
 691
 692 static void spice_register_config(void)
 693 {
 694     qemu_add_opts(&qemu_spice_opts);
 695 }
 696 machine_init(spice_register_config);
 697
 698 static void spice_initialize(void)
 699 {
 700     qemu_spice_init();
 701 }
 702 device_init(spice_initialize);