qapi/char.json

   1 # -*- Mode: Python -*-
   2 #
   3
   4 ##
   5 # = Character devices
   6 ##
   7
   8 { 'include': 'sockets.json' }
   9
  10 ##
  11 # @ChardevInfo:
  12 #
  13 # Information about a character device.
  14 #
  15 # @label: the label of the character device
  16 #
  17 # @filename: the filename of the character device
  18 #
  19 # @frontend-open: shows whether the frontend device attached to this backend
  20 #                 (eg. with the chardev=... option) is in open or closed state
  21 #                 (since 2.1)
  22 #
  23 # Notes: @filename is encoded using the QEMU command line character device
  24 #        encoding.  See the QEMU man page for details.
  25 #
  26 # Since: 0.14.0
  27 ##
  28 { 'struct': 'ChardevInfo',
  29   'data': { 'label': 'str',
  30             'filename': 'str',
  31             'frontend-open': 'bool' } }
  32
  33 ##
  34 # @query-chardev:
  35 #
  36 # Returns information about current character devices.
  37 #
  38 # Returns: a list of @ChardevInfo
  39 #
  40 # Since: 0.14.0
  41 #
  42 # Example:
  43 #
  44 # -> { "execute": "query-chardev" }
  45 # <- {
  46 #       "return": [
  47 #          {
  48 #             "label": "charchannel0",
  49 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.agent,server",
  50 #             "frontend-open": false
  51 #          },
  52 #          {
  53 #             "label": "charmonitor",
  54 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.monitor,server",
  55 #             "frontend-open": true
  56 #          },
  57 #          {
  58 #             "label": "charserial0",
  59 #             "filename": "pty:/dev/pts/2",
  60 #             "frontend-open": true
  61 #          }
  62 #       ]
  63 #    }
  64 #
  65 ##
  66 { 'command': 'query-chardev', 'returns': ['ChardevInfo'],
  67   'allow-preconfig': true }
  68
  69 ##
  70 # @ChardevBackendInfo:
  71 #
  72 # Information about a character device backend
  73 #
  74 # @name: The backend name
  75 #
  76 # Since: 2.0
  77 ##
  78 { 'struct': 'ChardevBackendInfo', 'data': {'name': 'str'} }
  79
  80 ##
  81 # @query-chardev-backends:
  82 #
  83 # Returns information about character device backends.
  84 #
  85 # Returns: a list of @ChardevBackendInfo
  86 #
  87 # Since: 2.0
  88 #
  89 # Example:
  90 #
  91 # -> { "execute": "query-chardev-backends" }
  92 # <- {
  93 #       "return":[
  94 #          {
  95 #             "name":"udp"
  96 #          },
  97 #          {
  98 #             "name":"tcp"
  99 #          },
 100 #          {
 101 #             "name":"unix"
 102 #          },
 103 #          {
 104 #             "name":"spiceport"
 105 #          }
 106 #       ]
 107 #    }
 108 #
 109 ##
 110 { 'command': 'query-chardev-backends', 'returns': ['ChardevBackendInfo'] }
 111
 112 ##
 113 # @DataFormat:
 114 #
 115 # An enumeration of data format.
 116 #
 117 # @utf8: Data is a UTF-8 string (RFC 3629)
 118 #
 119 # @base64: Data is Base64 encoded binary (RFC 3548)
 120 #
 121 # Since: 1.4
 122 ##
 123 { 'enum': 'DataFormat',
 124   'data': [ 'utf8', 'base64' ] }
 125
 126 ##
 127 # @ringbuf-write:
 128 #
 129 # Write to a ring buffer character device.
 130 #
 131 # @device: the ring buffer character device name
 132 #
 133 # @data: data to write
 134 #
 135 # @format: data encoding (default 'utf8').
 136 #
 137 #          - base64: data must be base64 encoded text.  Its binary
 138 #            decoding gets written.
 139 #          - utf8: data's UTF-8 encoding is written
 140 #          - data itself is always Unicode regardless of format, like
 141 #            any other string.
 142 #
 143 # Returns: Nothing on success
 144 #
 145 # Since: 1.4
 146 #
 147 # Example:
 148 #
 149 # -> { "execute": "ringbuf-write",
 150 #      "arguments": { "device": "foo",
 151 #                     "data": "abcdefgh",
 152 #                     "format": "utf8" } }
 153 # <- { "return": {} }
 154 #
 155 ##
 156 { 'command': 'ringbuf-write',
 157   'data': { 'device': 'str',
 158             'data': 'str',
 159            '*format': 'DataFormat'} }
 160
 161 ##
 162 # @ringbuf-read:
 163 #
 164 # Read from a ring buffer character device.
 165 #
 166 # @device: the ring buffer character device name
 167 #
 168 # @size: how many bytes to read at most
 169 #
 170 # @format: data encoding (default 'utf8').
 171 #
 172 #          - base64: the data read is returned in base64 encoding.
 173 #          - utf8: the data read is interpreted as UTF-8.
 174 #            Bug: can screw up when the buffer contains invalid UTF-8
 175 #            sequences, NUL characters, after the ring buffer lost
 176 #            data, and when reading stops because the size limit is
 177 #            reached.
 178 #          - The return value is always Unicode regardless of format,
 179 #            like any other string.
 180 #
 181 # Returns: data read from the device
 182 #
 183 # Since: 1.4
 184 #
 185 # Example:
 186 #
 187 # -> { "execute": "ringbuf-read",
 188 #      "arguments": { "device": "foo",
 189 #                     "size": 1000,
 190 #                     "format": "utf8" } }
 191 # <- { "return": "abcdefgh" }
 192 #
 193 ##
 194 { 'command': 'ringbuf-read',
 195   'data': {'device': 'str', 'size': 'int', '*format': 'DataFormat'},
 196   'returns': 'str' }
 197
 198 ##
 199 # @ChardevCommon:
 200 #
 201 # Configuration shared across all chardev backends
 202 #
 203 # @logfile: The name of a logfile to save output
 204 # @logappend: true to append instead of truncate
 205 #             (default to false to truncate)
 206 #
 207 # Since: 2.6
 208 ##
 209 { 'struct': 'ChardevCommon',
 210   'data': { '*logfile': 'str',
 211             '*logappend': 'bool' } }
 212
 213 ##
 214 # @ChardevFile:
 215 #
 216 # Configuration info for file chardevs.
 217 #
 218 # @in:  The name of the input file
 219 # @out: The name of the output file
 220 # @append: Open the file in append mode (default false to
 221 #          truncate) (Since 2.6)
 222 #
 223 # Since: 1.4
 224 ##
 225 { 'struct': 'ChardevFile',
 226   'data': { '*in': 'str',
 227             'out': 'str',
 228             '*append': 'bool' },
 229   'base': 'ChardevCommon' }
 230
 231 ##
 232 # @ChardevHostdev:
 233 #
 234 # Configuration info for device and pipe chardevs.
 235 #
 236 # @device: The name of the special file for the device,
 237 #          i.e. /dev/ttyS0 on Unix or COM1: on Windows
 238 #
 239 # Since: 1.4
 240 ##
 241 { 'struct': 'ChardevHostdev',
 242   'data': { 'device': 'str' },
 243   'base': 'ChardevCommon' }
 244
 245 ##
 246 # @ChardevSocket:
 247 #
 248 # Configuration info for (stream) socket chardevs.
 249 #
 250 # @addr: socket address to listen on (server=true)
 251 #        or connect to (server=false)
 252 # @tls-creds: the ID of the TLS credentials object (since 2.6)
 253 # @tls-authz: the ID of the QAuthZ authorization object against which
 254 #             the client's x509 distinguished name will be validated. This
 255 #             object is only resolved at time of use, so can be deleted
 256 #             and recreated on the fly while the chardev server is active.
 257 #             If missing, it will default to denying access (since 4.0)
 258 # @server: create server socket (default: true)
 259 # @wait: wait for incoming connection on server
 260 #        sockets (default: false).
 261 #        Silently ignored with server: false.  This use is deprecated.
 262 # @nodelay: set TCP_NODELAY socket option (default: false)
 263 # @telnet: enable telnet protocol on server
 264 #          sockets (default: false)
 265 # @tn3270: enable tn3270 protocol on server
 266 #          sockets (default: false) (Since: 2.10)
 267 # @websocket: enable websocket protocol on server
 268 #             sockets (default: false) (Since: 3.1)
 269 # @reconnect: For a client socket, if a socket is disconnected,
 270 #             then attempt a reconnect after the given number of seconds.
 271 #             Setting this to zero disables this function. (default: 0)
 272 #             (Since: 2.2)
 273 #
 274 # Since: 1.4
 275 ##
 276 { 'struct': 'ChardevSocket',
 277   'data': { 'addr': 'SocketAddressLegacy',
 278             '*tls-creds': 'str',
 279             '*tls-authz'  : 'str',
 280             '*server': 'bool',
 281             '*wait': 'bool',
 282             '*nodelay': 'bool',
 283             '*telnet': 'bool',
 284             '*tn3270': 'bool',
 285             '*websocket': 'bool',
 286             '*reconnect': 'int' },
 287   'base': 'ChardevCommon' }
 288
 289 ##
 290 # @ChardevUdp:
 291 #
 292 # Configuration info for datagram socket chardevs.
 293 #
 294 # @remote: remote address
 295 # @local: local address
 296 #
 297 # Since: 1.5
 298 ##
 299 { 'struct': 'ChardevUdp',
 300   'data': { 'remote': 'SocketAddressLegacy',
 301             '*local': 'SocketAddressLegacy' },
 302   'base': 'ChardevCommon' }
 303
 304 ##
 305 # @ChardevMux:
 306 #
 307 # Configuration info for mux chardevs.
 308 #
 309 # @chardev: name of the base chardev.
 310 #
 311 # Since: 1.5
 312 ##
 313 { 'struct': 'ChardevMux',
 314   'data': { 'chardev': 'str' },
 315   'base': 'ChardevCommon' }
 316
 317 ##
 318 # @ChardevStdio:
 319 #
 320 # Configuration info for stdio chardevs.
 321 #
 322 # @signal: Allow signals (such as SIGINT triggered by ^C)
 323 #          be delivered to qemu.  Default: true in -nographic mode,
 324 #          false otherwise.
 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': 'defined(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': 'defined(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 # @ChardevBackend:
 395 #
 396 # Configuration info for the new chardev backend.
 397 #
 398 # Since: 1.4 (testdev since 2.2, wctablet since 2.9)
 399 ##
 400 { 'union': 'ChardevBackend',
 401   'data': { 'file': 'ChardevFile',
 402             'serial': 'ChardevHostdev',
 403             'parallel': 'ChardevHostdev',
 404             'pipe': 'ChardevHostdev',
 405             'socket': 'ChardevSocket',
 406             'udp': 'ChardevUdp',
 407             'pty': 'ChardevCommon',
 408             'null': 'ChardevCommon',
 409             'mux': 'ChardevMux',
 410             'msmouse': 'ChardevCommon',
 411             'wctablet': 'ChardevCommon',
 412             'braille': 'ChardevCommon',
 413             'testdev': 'ChardevCommon',
 414             'stdio': 'ChardevStdio',
 415             'console': 'ChardevCommon',
 416             'spicevmc': { 'type': 'ChardevSpiceChannel',
 417                           'if': 'defined(CONFIG_SPICE)' },
 418             'spiceport': { 'type': 'ChardevSpicePort',
 419                            'if': 'defined(CONFIG_SPICE)' },
 420             'vc': 'ChardevVC',
 421             'ringbuf': 'ChardevRingbuf',
 422             # next one is just for compatibility
 423             'memory': 'ChardevRingbuf' } }
 424
 425 ##
 426 # @ChardevReturn:
 427 #
 428 # Return info about the chardev backend just created.
 429 #
 430 # @pty: name of the slave pseudoterminal device, present if
 431 #       and only if a chardev of type 'pty' was created
 432 #
 433 # Since: 1.4
 434 ##
 435 { 'struct' : 'ChardevReturn',
 436   'data': { '*pty': 'str' } }
 437
 438 ##
 439 # @chardev-add:
 440 #
 441 # Add a character device backend
 442 #
 443 # @id: the chardev's ID, must be unique
 444 # @backend: backend type and parameters
 445 #
 446 # Returns: ChardevReturn.
 447 #
 448 # Since: 1.4
 449 #
 450 # Example:
 451 #
 452 # -> { "execute" : "chardev-add",
 453 #      "arguments" : { "id" : "foo",
 454 #                      "backend" : { "type" : "null", "data" : {} } } }
 455 # <- { "return": {} }
 456 #
 457 # -> { "execute" : "chardev-add",
 458 #      "arguments" : { "id" : "bar",
 459 #                      "backend" : { "type" : "file",
 460 #                                    "data" : { "out" : "/tmp/bar.log" } } } }
 461 # <- { "return": {} }
 462 #
 463 # -> { "execute" : "chardev-add",
 464 #      "arguments" : { "id" : "baz",
 465 #                      "backend" : { "type" : "pty", "data" : {} } } }
 466 # <- { "return": { "pty" : "/dev/pty/42" } }
 467 #
 468 ##
 469 { 'command': 'chardev-add',
 470   'data': { 'id': 'str',
 471             'backend': 'ChardevBackend' },
 472   'returns': 'ChardevReturn' }
 473
 474 ##
 475 # @chardev-change:
 476 #
 477 # Change a character device backend
 478 #
 479 # @id: the chardev's ID, must exist
 480 # @backend: new backend type and parameters
 481 #
 482 # Returns: ChardevReturn.
 483 #
 484 # Since: 2.10
 485 #
 486 # Example:
 487 #
 488 # -> { "execute" : "chardev-change",
 489 #      "arguments" : { "id" : "baz",
 490 #                      "backend" : { "type" : "pty", "data" : {} } } }
 491 # <- { "return": { "pty" : "/dev/pty/42" } }
 492 #
 493 # -> {"execute" : "chardev-change",
 494 #     "arguments" : {
 495 #         "id" : "charchannel2",
 496 #         "backend" : {
 497 #             "type" : "socket",
 498 #             "data" : {
 499 #                 "addr" : {
 500 #                     "type" : "unix" ,
 501 #                     "data" : {
 502 #                         "path" : "/tmp/charchannel2.socket"
 503 #                     }
 504 #                  },
 505 #                  "server" : true,
 506 #                  "wait" : false }}}}
 507 # <- {"return": {}}
 508 #
 509 ##
 510 { 'command': 'chardev-change',
 511   'data': { 'id': 'str',
 512             'backend': 'ChardevBackend' },
 513   'returns': 'ChardevReturn' }
 514
 515 ##
 516 # @chardev-remove:
 517 #
 518 # Remove a character device backend
 519 #
 520 # @id: the chardev's ID, must exist and not be in use
 521 #
 522 # Returns: Nothing on success
 523 #
 524 # Since: 1.4
 525 #
 526 # Example:
 527 #
 528 # -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 529 # <- { "return": {} }
 530 #
 531 ##
 532 { 'command': 'chardev-remove',
 533   'data': { 'id': 'str' } }
 534
 535 ##
 536 # @chardev-send-break:
 537 #
 538 # Send a break to a character device
 539 #
 540 # @id: the chardev's ID, must exist
 541 #
 542 # Returns: Nothing on success
 543 #
 544 # Since: 2.10
 545 #
 546 # Example:
 547 #
 548 # -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
 549 # <- { "return": {} }
 550 #
 551 ##
 552 { 'command': 'chardev-send-break',
 553   'data': { 'id': 'str' } }
 554
 555 ##
 556 # @VSERPORT_CHANGE:
 557 #
 558 # Emitted when the guest opens or closes a virtio-serial port.
 559 #
 560 # @id: device identifier of the virtio-serial port
 561 #
 562 # @open: true if the guest has opened the virtio-serial port
 563 #
 564 # Since: 2.1
 565 #
 566 # Example:
 567 #
 568 # <- { "event": "VSERPORT_CHANGE",
 569 #      "data": { "id": "channel0", "open": true },
 570 #      "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
 571 #
 572 ##
 573 { 'event': 'VSERPORT_CHANGE',
 574   'data': { 'id': 'str',
 575             'open': 'bool' } }