qapi/char.json

   1 # -*- Mode: Python -*-
   2 # vim: filetype=python
   3 #
   4
   5 ##
   6 # = Character devices
   7 ##
   8
   9 { 'include': 'sockets.json' }
  10
  11 ##
  12 # @ChardevInfo:
  13 #
  14 # Information about a character device.
  15 #
  16 # @label: the label of the character device
  17 #
  18 # @filename: the filename of the character device
  19 #
  20 # @frontend-open: shows whether the frontend device attached to this backend
  21 #                 (eg. with the chardev=... option) is in open or closed state
  22 #                 (since 2.1)
  23 #
  24 # Notes: @filename is encoded using the QEMU command line character device
  25 #        encoding.  See the QEMU man page for details.
  26 #
  27 # Since: 0.14
  28 ##
  29 { 'struct': 'ChardevInfo',
  30   'data': { 'label': 'str',
  31             'filename': 'str',
  32             'frontend-open': 'bool' } }
  33
  34 ##
  35 # @query-chardev:
  36 #
  37 # Returns information about current character devices.
  38 #
  39 # Returns: a list of @ChardevInfo
  40 #
  41 # Since: 0.14
  42 #
  43 # Example:
  44 #
  45 # -> { "execute": "query-chardev" }
  46 # <- {
  47 #       "return": [
  48 #          {
  49 #             "label": "charchannel0",
  50 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.agent,server=on",
  51 #             "frontend-open": false
  52 #          },
  53 #          {
  54 #             "label": "charmonitor",
  55 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.monitor,server=on",
  56 #             "frontend-open": true
  57 #          },
  58 #          {
  59 #             "label": "charserial0",
  60 #             "filename": "pty:/dev/pts/2",
  61 #             "frontend-open": true
  62 #          }
  63 #       ]
  64 #    }
  65 #
  66 ##
  67 { 'command': 'query-chardev', 'returns': ['ChardevInfo'],
  68   'allow-preconfig': true }
  69
  70 ##
  71 # @ChardevBackendInfo:
  72 #
  73 # Information about a character device backend
  74 #
  75 # @name: The backend name
  76 #
  77 # Since: 2.0
  78 ##
  79 { 'struct': 'ChardevBackendInfo', 'data': {'name': 'str'} }
  80
  81 ##
  82 # @query-chardev-backends:
  83 #
  84 # Returns information about character device backends.
  85 #
  86 # Returns: a list of @ChardevBackendInfo
  87 #
  88 # Since: 2.0
  89 #
  90 # Example:
  91 #
  92 # -> { "execute": "query-chardev-backends" }
  93 # <- {
  94 #       "return":[
  95 #          {
  96 #             "name":"udp"
  97 #          },
  98 #          {
  99 #             "name":"tcp"
 100 #          },
 101 #          {
 102 #             "name":"unix"
 103 #          },
 104 #          {
 105 #             "name":"spiceport"
 106 #          }
 107 #       ]
 108 #    }
 109 #
 110 ##
 111 { 'command': 'query-chardev-backends', 'returns': ['ChardevBackendInfo'] }
 112
 113 ##
 114 # @DataFormat:
 115 #
 116 # An enumeration of data format.
 117 #
 118 # @utf8: Data is a UTF-8 string (RFC 3629)
 119 #
 120 # @base64: Data is Base64 encoded binary (RFC 3548)
 121 #
 122 # Since: 1.4
 123 ##
 124 { 'enum': 'DataFormat',
 125   'data': [ 'utf8', 'base64' ] }
 126
 127 ##
 128 # @ringbuf-write:
 129 #
 130 # Write to a ring buffer character device.
 131 #
 132 # @device: the ring buffer character device name
 133 #
 134 # @data: data to write
 135 #
 136 # @format: data encoding (default 'utf8').
 137 #
 138 #          - base64: data must be base64 encoded text.  Its binary
 139 #            decoding gets written.
 140 #          - utf8: data's UTF-8 encoding is written
 141 #          - data itself is always Unicode regardless of format, like
 142 #            any other string.
 143 #
 144 # Returns: Nothing on success
 145 #
 146 # Since: 1.4
 147 #
 148 # Example:
 149 #
 150 # -> { "execute": "ringbuf-write",
 151 #      "arguments": { "device": "foo",
 152 #                     "data": "abcdefgh",
 153 #                     "format": "utf8" } }
 154 # <- { "return": {} }
 155 #
 156 ##
 157 { 'command': 'ringbuf-write',
 158   'data': { 'device': 'str',
 159             'data': 'str',
 160            '*format': 'DataFormat'} }
 161
 162 ##
 163 # @ringbuf-read:
 164 #
 165 # Read from a ring buffer character device.
 166 #
 167 # @device: the ring buffer character device name
 168 #
 169 # @size: how many bytes to read at most
 170 #
 171 # @format: data encoding (default 'utf8').
 172 #
 173 #          - base64: the data read is returned in base64 encoding.
 174 #          - utf8: the data read is interpreted as UTF-8.
 175 #            Bug: can screw up when the buffer contains invalid UTF-8
 176 #            sequences, NUL characters, after the ring buffer lost
 177 #            data, and when reading stops because the size limit is
 178 #            reached.
 179 #          - The return value is always Unicode regardless of format,
 180 #            like any other string.
 181 #
 182 # Returns: data read from the device
 183 #
 184 # Since: 1.4
 185 #
 186 # Example:
 187 #
 188 # -> { "execute": "ringbuf-read",
 189 #      "arguments": { "device": "foo",
 190 #                     "size": 1000,
 191 #                     "format": "utf8" } }
 192 # <- { "return": "abcdefgh" }
 193 #
 194 ##
 195 { 'command': 'ringbuf-read',
 196   'data': {'device': 'str', 'size': 'int', '*format': 'DataFormat'},
 197   'returns': 'str' }
 198
 199 ##
 200 # @ChardevCommon:
 201 #
 202 # Configuration shared across all chardev backends
 203 #
 204 # @logfile: The name of a logfile to save output
 205 # @logappend: true to append instead of truncate
 206 #             (default to false to truncate)
 207 #
 208 # Since: 2.6
 209 ##
 210 { 'struct': 'ChardevCommon',
 211   'data': { '*logfile': 'str',
 212             '*logappend': 'bool' } }
 213
 214 ##
 215 # @ChardevFile:
 216 #
 217 # Configuration info for file chardevs.
 218 #
 219 # @in:  The name of the input file
 220 # @out: The name of the output file
 221 # @append: Open the file in append mode (default false to
 222 #          truncate) (Since 2.6)
 223 #
 224 # Since: 1.4
 225 ##
 226 { 'struct': 'ChardevFile',
 227   'data': { '*in': 'str',
 228             'out': 'str',
 229             '*append': 'bool' },
 230   'base': 'ChardevCommon' }
 231
 232 ##
 233 # @ChardevHostdev:
 234 #
 235 # Configuration info for device and pipe chardevs.
 236 #
 237 # @device: The name of the special file for the device,
 238 #          i.e. /dev/ttyS0 on Unix or COM1: on Windows
 239 #
 240 # Since: 1.4
 241 ##
 242 { 'struct': 'ChardevHostdev',
 243   'data': { 'device': 'str' },
 244   'base': 'ChardevCommon' }
 245
 246 ##
 247 # @ChardevSocket:
 248 #
 249 # Configuration info for (stream) socket chardevs.
 250 #
 251 # @addr: socket address to listen on (server=true)
 252 #        or connect to (server=false)
 253 # @tls-creds: the ID of the TLS credentials object (since 2.6)
 254 # @tls-authz: the ID of the QAuthZ authorization object against which
 255 #             the client's x509 distinguished name will be validated. This
 256 #             object is only resolved at time of use, so can be deleted
 257 #             and recreated on the fly while the chardev server is active.
 258 #             If missing, it will default to denying access (since 4.0)
 259 # @server: create server socket (default: true)
 260 # @wait: wait for incoming connection on server
 261 #        sockets (default: false).
 262 #        Silently ignored with server: false.  This use is deprecated.
 263 # @nodelay: set TCP_NODELAY socket option (default: false)
 264 # @telnet: enable telnet protocol on server
 265 #          sockets (default: false)
 266 # @tn3270: enable tn3270 protocol on server
 267 #          sockets (default: false) (Since: 2.10)
 268 # @websocket: enable websocket protocol on server
 269 #             sockets (default: false) (Since: 3.1)
 270 # @reconnect: For a client socket, if a socket is disconnected,
 271 #             then attempt a reconnect after the given number of seconds.
 272 #             Setting this to zero disables this function. (default: 0)
 273 #             (Since: 2.2)
 274 #
 275 # Since: 1.4
 276 ##
 277 { 'struct': 'ChardevSocket',
 278   'data': { 'addr': 'SocketAddressLegacy',
 279             '*tls-creds': 'str',
 280             '*tls-authz'  : 'str',
 281             '*server': 'bool',
 282             '*wait': 'bool',
 283             '*nodelay': 'bool',
 284             '*telnet': 'bool',
 285             '*tn3270': 'bool',
 286             '*websocket': 'bool',
 287             '*reconnect': 'int' },
 288   'base': 'ChardevCommon' }
 289
 290 ##
 291 # @ChardevUdp:
 292 #
 293 # Configuration info for datagram socket chardevs.
 294 #
 295 # @remote: remote address
 296 # @local: local address
 297 #
 298 # Since: 1.5
 299 ##
 300 { 'struct': 'ChardevUdp',
 301   'data': { 'remote': 'SocketAddressLegacy',
 302             '*local': 'SocketAddressLegacy' },
 303   'base': 'ChardevCommon' }
 304
 305 ##
 306 # @ChardevMux:
 307 #
 308 # Configuration info for mux chardevs.
 309 #
 310 # @chardev: name of the base chardev.
 311 #
 312 # Since: 1.5
 313 ##
 314 { 'struct': 'ChardevMux',
 315   'data': { 'chardev': 'str' },
 316   'base': 'ChardevCommon' }
 317
 318 ##
 319 # @ChardevStdio:
 320 #
 321 # Configuration info for stdio chardevs.
 322 #
 323 # @signal: Allow signals (such as SIGINT triggered by ^C)
 324 #          be delivered to qemu.  Default: true.
 325 #
 326 # Since: 1.5
 327 ##
 328 { 'struct': 'ChardevStdio',
 329   'data': { '*signal': 'bool' },
 330   'base': 'ChardevCommon' }
 331
 332
 333 ##
 334 # @ChardevSpiceChannel:
 335 #
 336 # Configuration info for spice vm channel chardevs.
 337 #
 338 # @type: kind of channel (for example vdagent).
 339 #
 340 # Since: 1.5
 341 ##
 342 { 'struct': 'ChardevSpiceChannel',
 343   'data': { 'type': 'str' },
 344   'base': 'ChardevCommon',
 345   'if': 'CONFIG_SPICE' }
 346
 347 ##
 348 # @ChardevSpicePort:
 349 #
 350 # Configuration info for spice port chardevs.
 351 #
 352 # @fqdn: name of the channel (see docs/spice-port-fqdn.txt)
 353 #
 354 # Since: 1.5
 355 ##
 356 { 'struct': 'ChardevSpicePort',
 357   'data': { 'fqdn': 'str' },
 358   'base': 'ChardevCommon',
 359   'if': 'CONFIG_SPICE' }
 360
 361 ##
 362 # @ChardevVC:
 363 #
 364 # Configuration info for virtual console chardevs.
 365 #
 366 # @width:  console width,  in pixels
 367 # @height: console height, in pixels
 368 # @cols:   console width,  in chars
 369 # @rows:   console height, in chars
 370 #
 371 # Since: 1.5
 372 ##
 373 { 'struct': 'ChardevVC',
 374   'data': { '*width': 'int',
 375             '*height': 'int',
 376             '*cols': 'int',
 377             '*rows': 'int' },
 378   'base': 'ChardevCommon' }
 379
 380 ##
 381 # @ChardevRingbuf:
 382 #
 383 # Configuration info for ring buffer chardevs.
 384 #
 385 # @size: ring buffer size, must be power of two, default is 65536
 386 #
 387 # Since: 1.5
 388 ##
 389 { 'struct': 'ChardevRingbuf',
 390   'data': { '*size': 'int' },
 391   'base': 'ChardevCommon' }
 392
 393 ##
 394 # @ChardevQemuVDAgent:
 395 #
 396 # Configuration info for qemu vdagent implementation.
 397 #
 398 # @mouse: enable/disable mouse, default is enabled.
 399 # @clipboard: enable/disable clipboard, default is disabled.
 400 #
 401 # Since: 6.1
 402 #
 403 ##
 404 { 'struct': 'ChardevQemuVDAgent',
 405   'data': { '*mouse': 'bool',
 406             '*clipboard': 'bool' },
 407   'base': 'ChardevCommon',
 408   'if': 'CONFIG_SPICE_PROTOCOL' }
 409
 410 ##
 411 # @ChardevBackendKind:
 412 #
 413 # @pipe: Since 1.5
 414 # @udp: Since 1.5
 415 # @mux: Since 1.5
 416 # @msmouse: Since 1.5
 417 # @wctablet: Since 2.9
 418 # @braille: Since 1.5
 419 # @testdev: Since 2.2
 420 # @stdio: Since 1.5
 421 # @console: Since 1.5
 422 # @spicevmc: Since 1.5
 423 # @spiceport: Since 1.5
 424 # @qemu-vdagent: Since 6.1
 425 # @vc: v1.5
 426 # @ringbuf: Since 1.6
 427 # @memory: Since 1.5
 428 #
 429 # Since: 1.4
 430 ##
 431 { 'enum': 'ChardevBackendKind',
 432   'data': [ 'file',
 433             'serial',
 434             'parallel',
 435             'pipe',
 436             'socket',
 437             'udp',
 438             'pty',
 439             'null',
 440             'mux',
 441             'msmouse',
 442             'wctablet',
 443             'braille',
 444             'testdev',
 445             'stdio',
 446             'console',
 447             { 'name': 'spicevmc', 'if': 'CONFIG_SPICE' },
 448             { 'name': 'spiceport', 'if': 'CONFIG_SPICE' },
 449             { 'name': 'qemu-vdagent', 'if': 'CONFIG_SPICE_PROTOCOL' },
 450             'vc',
 451             'ringbuf',
 452             # next one is just for compatibility
 453             'memory' ] }
 454
 455 ##
 456 # @ChardevFileWrapper:
 457 #
 458 # Since: 1.4
 459 ##
 460 { 'struct': 'ChardevFileWrapper',
 461   'data': { 'data': 'ChardevFile' } }
 462
 463 ##
 464 # @ChardevHostdevWrapper:
 465 #
 466 # Since: 1.4
 467 ##
 468 { 'struct': 'ChardevHostdevWrapper',
 469   'data': { 'data': 'ChardevHostdev' } }
 470
 471 ##
 472 # @ChardevSocketWrapper:
 473 #
 474 # Since: 1.4
 475 ##
 476 { 'struct': 'ChardevSocketWrapper',
 477   'data': { 'data': 'ChardevSocket' } }
 478
 479 ##
 480 # @ChardevUdpWrapper:
 481 #
 482 # Since: 1.5
 483 ##
 484 { 'struct': 'ChardevUdpWrapper',
 485   'data': { 'data': 'ChardevUdp' } }
 486
 487 ##
 488 # @ChardevCommonWrapper:
 489 #
 490 # Since: 2.6
 491 ##
 492 { 'struct': 'ChardevCommonWrapper',
 493   'data': { 'data': 'ChardevCommon' } }
 494
 495 ##
 496 # @ChardevMuxWrapper:
 497 #
 498 # Since: 1.5
 499 ##
 500 { 'struct': 'ChardevMuxWrapper',
 501   'data': { 'data': 'ChardevMux' } }
 502
 503 ##
 504 # @ChardevStdioWrapper:
 505 #
 506 # Since: 1.5
 507 ##
 508 { 'struct': 'ChardevStdioWrapper',
 509   'data': { 'data': 'ChardevStdio' } }
 510
 511 ##
 512 # @ChardevSpiceChannelWrapper:
 513 #
 514 # Since: 1.5
 515 ##
 516 { 'struct': 'ChardevSpiceChannelWrapper',
 517   'data': { 'data': 'ChardevSpiceChannel' },
 518   'if': 'CONFIG_SPICE' }
 519
 520 ##
 521 # @ChardevSpicePortWrapper:
 522 #
 523 # Since: 1.5
 524 ##
 525 { 'struct': 'ChardevSpicePortWrapper',
 526   'data': { 'data': 'ChardevSpicePort' },
 527   'if': 'CONFIG_SPICE' }
 528
 529 ##
 530 # @ChardevQemuVDAgentWrapper:
 531 #
 532 # Since: 6.1
 533 ##
 534 { 'struct': 'ChardevQemuVDAgentWrapper',
 535   'data': { 'data': 'ChardevQemuVDAgent' },
 536   'if': 'CONFIG_SPICE_PROTOCOL' }
 537
 538 ##
 539 # @ChardevVCWrapper:
 540 #
 541 # Since: 1.5
 542 ##
 543 { 'struct': 'ChardevVCWrapper',
 544   'data': { 'data': 'ChardevVC' } }
 545
 546 ##
 547 # @ChardevRingbufWrapper:
 548 #
 549 # Since: 1.5
 550 ##
 551 { 'struct': 'ChardevRingbufWrapper',
 552   'data': { 'data': 'ChardevRingbuf' } }
 553
 554 ##
 555 # @ChardevBackend:
 556 #
 557 # Configuration info for the new chardev backend.
 558 #
 559 # Since: 1.4
 560 ##
 561 { 'union': 'ChardevBackend',
 562   'base': { 'type': 'ChardevBackendKind' },
 563   'discriminator': 'type',
 564   'data': { 'file': 'ChardevFileWrapper',
 565             'serial': 'ChardevHostdevWrapper',
 566             'parallel': 'ChardevHostdevWrapper',
 567             'pipe': 'ChardevHostdevWrapper',
 568             'socket': 'ChardevSocketWrapper',
 569             'udp': 'ChardevUdpWrapper',
 570             'pty': 'ChardevCommonWrapper',
 571             'null': 'ChardevCommonWrapper',
 572             'mux': 'ChardevMuxWrapper',
 573             'msmouse': 'ChardevCommonWrapper',
 574             'wctablet': 'ChardevCommonWrapper',
 575             'braille': 'ChardevCommonWrapper',
 576             'testdev': 'ChardevCommonWrapper',
 577             'stdio': 'ChardevStdioWrapper',
 578             'console': 'ChardevCommonWrapper',
 579             'spicevmc': { 'type': 'ChardevSpiceChannelWrapper',
 580                           'if': 'CONFIG_SPICE' },
 581             'spiceport': { 'type': 'ChardevSpicePortWrapper',
 582                            'if': 'CONFIG_SPICE' },
 583             'qemu-vdagent': { 'type': 'ChardevQemuVDAgentWrapper',
 584                               'if': 'CONFIG_SPICE_PROTOCOL' },
 585             'vc': 'ChardevVCWrapper',
 586             'ringbuf': 'ChardevRingbufWrapper',
 587             # next one is just for compatibility
 588             'memory': 'ChardevRingbufWrapper' } }
 589
 590 ##
 591 # @ChardevReturn:
 592 #
 593 # Return info about the chardev backend just created.
 594 #
 595 # @pty: name of the slave pseudoterminal device, present if
 596 #       and only if a chardev of type 'pty' was created
 597 #
 598 # Since: 1.4
 599 ##
 600 { 'struct' : 'ChardevReturn',
 601   'data': { '*pty': 'str' } }
 602
 603 ##
 604 # @chardev-add:
 605 #
 606 # Add a character device backend
 607 #
 608 # @id: the chardev's ID, must be unique
 609 # @backend: backend type and parameters
 610 #
 611 # Returns: ChardevReturn.
 612 #
 613 # Since: 1.4
 614 #
 615 # Example:
 616 #
 617 # -> { "execute" : "chardev-add",
 618 #      "arguments" : { "id" : "foo",
 619 #                      "backend" : { "type" : "null", "data" : {} } } }
 620 # <- { "return": {} }
 621 #
 622 # -> { "execute" : "chardev-add",
 623 #      "arguments" : { "id" : "bar",
 624 #                      "backend" : { "type" : "file",
 625 #                                    "data" : { "out" : "/tmp/bar.log" } } } }
 626 # <- { "return": {} }
 627 #
 628 # -> { "execute" : "chardev-add",
 629 #      "arguments" : { "id" : "baz",
 630 #                      "backend" : { "type" : "pty", "data" : {} } } }
 631 # <- { "return": { "pty" : "/dev/pty/42" } }
 632 #
 633 ##
 634 { 'command': 'chardev-add',
 635   'data': { 'id': 'str',
 636             'backend': 'ChardevBackend' },
 637   'returns': 'ChardevReturn' }
 638
 639 ##
 640 # @chardev-change:
 641 #
 642 # Change a character device backend
 643 #
 644 # @id: the chardev's ID, must exist
 645 # @backend: new backend type and parameters
 646 #
 647 # Returns: ChardevReturn.
 648 #
 649 # Since: 2.10
 650 #
 651 # Example:
 652 #
 653 # -> { "execute" : "chardev-change",
 654 #      "arguments" : { "id" : "baz",
 655 #                      "backend" : { "type" : "pty", "data" : {} } } }
 656 # <- { "return": { "pty" : "/dev/pty/42" } }
 657 #
 658 # -> {"execute" : "chardev-change",
 659 #     "arguments" : {
 660 #         "id" : "charchannel2",
 661 #         "backend" : {
 662 #             "type" : "socket",
 663 #             "data" : {
 664 #                 "addr" : {
 665 #                     "type" : "unix" ,
 666 #                     "data" : {
 667 #                         "path" : "/tmp/charchannel2.socket"
 668 #                     }
 669 #                  },
 670 #                  "server" : true,
 671 #                  "wait" : false }}}}
 672 # <- {"return": {}}
 673 #
 674 ##
 675 { 'command': 'chardev-change',
 676   'data': { 'id': 'str',
 677             'backend': 'ChardevBackend' },
 678   'returns': 'ChardevReturn' }
 679
 680 ##
 681 # @chardev-remove:
 682 #
 683 # Remove a character device backend
 684 #
 685 # @id: the chardev's ID, must exist and not be in use
 686 #
 687 # Returns: Nothing on success
 688 #
 689 # Since: 1.4
 690 #
 691 # Example:
 692 #
 693 # -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 694 # <- { "return": {} }
 695 #
 696 ##
 697 { 'command': 'chardev-remove',
 698   'data': { 'id': 'str' } }
 699
 700 ##
 701 # @chardev-send-break:
 702 #
 703 # Send a break to a character device
 704 #
 705 # @id: the chardev's ID, must exist
 706 #
 707 # Returns: Nothing on success
 708 #
 709 # Since: 2.10
 710 #
 711 # Example:
 712 #
 713 # -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
 714 # <- { "return": {} }
 715 #
 716 ##
 717 { 'command': 'chardev-send-break',
 718   'data': { 'id': 'str' } }
 719
 720 ##
 721 # @VSERPORT_CHANGE:
 722 #
 723 # Emitted when the guest opens or closes a virtio-serial port.
 724 #
 725 # @id: device identifier of the virtio-serial port
 726 #
 727 # @open: true if the guest has opened the virtio-serial port
 728 #
 729 # Note: This event is rate-limited.
 730 #
 731 # Since: 2.1
 732 #
 733 # Example:
 734 #
 735 # <- { "event": "VSERPORT_CHANGE",
 736 #      "data": { "id": "channel0", "open": true },
 737 #      "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
 738 #
 739 ##
 740 { 'event': 'VSERPORT_CHANGE',
 741   'data': { 'id': 'str',
 742             'open': 'bool' } }