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 # @ChardevBackend:
 412 #
 413 # Configuration info for the new chardev backend.
 414 #
 415 # Since: 1.4 (testdev since 2.2, wctablet since 2.9, vdagent since 6.1)
 416 ##
 417 { 'union': 'ChardevBackend',
 418   'data': { 'file': 'ChardevFile',
 419             'serial': 'ChardevHostdev',
 420             'parallel': 'ChardevHostdev',
 421             'pipe': 'ChardevHostdev',
 422             'socket': 'ChardevSocket',
 423             'udp': 'ChardevUdp',
 424             'pty': 'ChardevCommon',
 425             'null': 'ChardevCommon',
 426             'mux': 'ChardevMux',
 427             'msmouse': 'ChardevCommon',
 428             'wctablet': 'ChardevCommon',
 429             'braille': 'ChardevCommon',
 430             'testdev': 'ChardevCommon',
 431             'stdio': 'ChardevStdio',
 432             'console': 'ChardevCommon',
 433             'spicevmc': { 'type': 'ChardevSpiceChannel',
 434                           'if': 'CONFIG_SPICE' },
 435             'spiceport': { 'type': 'ChardevSpicePort',
 436                            'if': 'CONFIG_SPICE' },
 437             'qemu-vdagent': { 'type': 'ChardevQemuVDAgent',
 438                               'if': 'CONFIG_SPICE_PROTOCOL' },
 439             'vc': 'ChardevVC',
 440             'ringbuf': 'ChardevRingbuf',
 441             # next one is just for compatibility
 442             'memory': 'ChardevRingbuf' } }
 443
 444 ##
 445 # @ChardevReturn:
 446 #
 447 # Return info about the chardev backend just created.
 448 #
 449 # @pty: name of the slave pseudoterminal device, present if
 450 #       and only if a chardev of type 'pty' was created
 451 #
 452 # Since: 1.4
 453 ##
 454 { 'struct' : 'ChardevReturn',
 455   'data': { '*pty': 'str' } }
 456
 457 ##
 458 # @chardev-add:
 459 #
 460 # Add a character device backend
 461 #
 462 # @id: the chardev's ID, must be unique
 463 # @backend: backend type and parameters
 464 #
 465 # Returns: ChardevReturn.
 466 #
 467 # Since: 1.4
 468 #
 469 # Example:
 470 #
 471 # -> { "execute" : "chardev-add",
 472 #      "arguments" : { "id" : "foo",
 473 #                      "backend" : { "type" : "null", "data" : {} } } }
 474 # <- { "return": {} }
 475 #
 476 # -> { "execute" : "chardev-add",
 477 #      "arguments" : { "id" : "bar",
 478 #                      "backend" : { "type" : "file",
 479 #                                    "data" : { "out" : "/tmp/bar.log" } } } }
 480 # <- { "return": {} }
 481 #
 482 # -> { "execute" : "chardev-add",
 483 #      "arguments" : { "id" : "baz",
 484 #                      "backend" : { "type" : "pty", "data" : {} } } }
 485 # <- { "return": { "pty" : "/dev/pty/42" } }
 486 #
 487 ##
 488 { 'command': 'chardev-add',
 489   'data': { 'id': 'str',
 490             'backend': 'ChardevBackend' },
 491   'returns': 'ChardevReturn' }
 492
 493 ##
 494 # @chardev-change:
 495 #
 496 # Change a character device backend
 497 #
 498 # @id: the chardev's ID, must exist
 499 # @backend: new backend type and parameters
 500 #
 501 # Returns: ChardevReturn.
 502 #
 503 # Since: 2.10
 504 #
 505 # Example:
 506 #
 507 # -> { "execute" : "chardev-change",
 508 #      "arguments" : { "id" : "baz",
 509 #                      "backend" : { "type" : "pty", "data" : {} } } }
 510 # <- { "return": { "pty" : "/dev/pty/42" } }
 511 #
 512 # -> {"execute" : "chardev-change",
 513 #     "arguments" : {
 514 #         "id" : "charchannel2",
 515 #         "backend" : {
 516 #             "type" : "socket",
 517 #             "data" : {
 518 #                 "addr" : {
 519 #                     "type" : "unix" ,
 520 #                     "data" : {
 521 #                         "path" : "/tmp/charchannel2.socket"
 522 #                     }
 523 #                  },
 524 #                  "server" : true,
 525 #                  "wait" : false }}}}
 526 # <- {"return": {}}
 527 #
 528 ##
 529 { 'command': 'chardev-change',
 530   'data': { 'id': 'str',
 531             'backend': 'ChardevBackend' },
 532   'returns': 'ChardevReturn' }
 533
 534 ##
 535 # @chardev-remove:
 536 #
 537 # Remove a character device backend
 538 #
 539 # @id: the chardev's ID, must exist and not be in use
 540 #
 541 # Returns: Nothing on success
 542 #
 543 # Since: 1.4
 544 #
 545 # Example:
 546 #
 547 # -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 548 # <- { "return": {} }
 549 #
 550 ##
 551 { 'command': 'chardev-remove',
 552   'data': { 'id': 'str' } }
 553
 554 ##
 555 # @chardev-send-break:
 556 #
 557 # Send a break to a character device
 558 #
 559 # @id: the chardev's ID, must exist
 560 #
 561 # Returns: Nothing on success
 562 #
 563 # Since: 2.10
 564 #
 565 # Example:
 566 #
 567 # -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
 568 # <- { "return": {} }
 569 #
 570 ##
 571 { 'command': 'chardev-send-break',
 572   'data': { 'id': 'str' } }
 573
 574 ##
 575 # @VSERPORT_CHANGE:
 576 #
 577 # Emitted when the guest opens or closes a virtio-serial port.
 578 #
 579 # @id: device identifier of the virtio-serial port
 580 #
 581 # @open: true if the guest has opened the virtio-serial port
 582 #
 583 # Note: This event is rate-limited.
 584 #
 585 # Since: 2.1
 586 #
 587 # Example:
 588 #
 589 # <- { "event": "VSERPORT_CHANGE",
 590 #      "data": { "id": "channel0", "open": true },
 591 #      "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
 592 #
 593 ##
 594 { 'event': 'VSERPORT_CHANGE',
 595   'data': { 'id': 'str',
 596             'open': 'bool' } }