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', 'data': {'label': 'str',
  29                                   'filename': 'str',
  30                                   'frontend-open': 'bool'} }
  31
  32 ##
  33 # @query-chardev:
  34 #
  35 # Returns information about current character devices.
  36 #
  37 # Returns: a list of @ChardevInfo
  38 #
  39 # Since: 0.14.0
  40 #
  41 # Example:
  42 #
  43 # -> { "execute": "query-chardev" }
  44 # <- {
  45 #       "return": [
  46 #          {
  47 #             "label": "charchannel0",
  48 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.agent,server",
  49 #             "frontend-open": false
  50 #          },
  51 #          {
  52 #             "label": "charmonitor",
  53 #             "filename": "unix:/var/lib/libvirt/qemu/seabios.rhel6.monitor,server",
  54 #             "frontend-open": true
  55 #          },
  56 #          {
  57 #             "label": "charserial0",
  58 #             "filename": "pty:/dev/pts/2",
  59 #             "frontend-open": true
  60 #          }
  61 #       ]
  62 #    }
  63 #
  64 ##
  65 { 'command': 'query-chardev', 'returns': ['ChardevInfo'],
  66   'allow-preconfig': true }
  67
  68 ##
  69 # @ChardevBackendInfo:
  70 #
  71 # Information about a character device backend
  72 #
  73 # @name: The backend name
  74 #
  75 # Since: 2.0
  76 ##
  77 { 'struct': 'ChardevBackendInfo', 'data': {'name': 'str'} }
  78
  79 ##
  80 # @query-chardev-backends:
  81 #
  82 # Returns information about character device backends.
  83 #
  84 # Returns: a list of @ChardevBackendInfo
  85 #
  86 # Since: 2.0
  87 #
  88 # Example:
  89 #
  90 # -> { "execute": "query-chardev-backends" }
  91 # <- {
  92 #       "return":[
  93 #          {
  94 #             "name":"udp"
  95 #          },
  96 #          {
  97 #             "name":"tcp"
  98 #          },
  99 #          {
 100 #             "name":"unix"
 101 #          },
 102 #          {
 103 #             "name":"spiceport"
 104 #          }
 105 #       ]
 106 #    }
 107 #
 108 ##
 109 { 'command': 'query-chardev-backends', 'returns': ['ChardevBackendInfo'] }
 110
 111 ##
 112 # @DataFormat:
 113 #
 114 # An enumeration of data format.
 115 #
 116 # @utf8: Data is a UTF-8 string (RFC 3629)
 117 #
 118 # @base64: Data is Base64 encoded binary (RFC 3548)
 119 #
 120 # Since: 1.4
 121 ##
 122 { 'enum': 'DataFormat',
 123   'data': [ 'utf8', 'base64' ] }
 124
 125 ##
 126 # @ringbuf-write:
 127 #
 128 # Write to a ring buffer character device.
 129 #
 130 # @device: the ring buffer character device name
 131 #
 132 # @data: data to write
 133 #
 134 # @format: data encoding (default 'utf8').
 135 #          - base64: data must be base64 encoded text.  Its binary
 136 #            decoding gets written.
 137 #          - utf8: data's UTF-8 encoding is written
 138 #          - data itself is always Unicode regardless of format, like
 139 #            any other string.
 140 #
 141 # Returns: Nothing on success
 142 #
 143 # Since: 1.4
 144 #
 145 # Example:
 146 #
 147 # -> { "execute": "ringbuf-write",
 148 #      "arguments": { "device": "foo",
 149 #                     "data": "abcdefgh",
 150 #                     "format": "utf8" } }
 151 # <- { "return": {} }
 152 #
 153 ##
 154 { 'command': 'ringbuf-write',
 155   'data': {'device': 'str', 'data': 'str',
 156            '*format': 'DataFormat'} }
 157
 158 ##
 159 # @ringbuf-read:
 160 #
 161 # Read from a ring buffer character device.
 162 #
 163 # @device: the ring buffer character device name
 164 #
 165 # @size: how many bytes to read at most
 166 #
 167 # @format: data encoding (default 'utf8').
 168 #          - base64: the data read is returned in base64 encoding.
 169 #          - utf8: the data read is interpreted as UTF-8.
 170 #            Bug: can screw up when the buffer contains invalid UTF-8
 171 #            sequences, NUL characters, after the ring buffer lost
 172 #            data, and when reading stops because the size limit is
 173 #            reached.
 174 #          - The return value is always Unicode regardless of format,
 175 #            like any other string.
 176 #
 177 # Returns: data read from the device
 178 #
 179 # Since: 1.4
 180 #
 181 # Example:
 182 #
 183 # -> { "execute": "ringbuf-read",
 184 #      "arguments": { "device": "foo",
 185 #                     "size": 1000,
 186 #                     "format": "utf8" } }
 187 # <- { "return": "abcdefgh" }
 188 #
 189 ##
 190 { 'command': 'ringbuf-read',
 191   'data': {'device': 'str', 'size': 'int', '*format': 'DataFormat'},
 192   'returns': 'str' }
 193
 194 ##
 195 # @ChardevCommon:
 196 #
 197 # Configuration shared across all chardev backends
 198 #
 199 # @logfile: The name of a logfile to save output
 200 # @logappend: true to append instead of truncate
 201 #             (default to false to truncate)
 202 #
 203 # Since: 2.6
 204 ##
 205 { 'struct': 'ChardevCommon', 'data': { '*logfile': 'str',
 206                                        '*logappend': 'bool' } }
 207
 208 ##
 209 # @ChardevFile:
 210 #
 211 # Configuration info for file chardevs.
 212 #
 213 # @in:  The name of the input file
 214 # @out: The name of the output file
 215 # @append: Open the file in append mode (default false to
 216 #          truncate) (Since 2.6)
 217 #
 218 # Since: 1.4
 219 ##
 220 { 'struct': 'ChardevFile', 'data': { '*in' : 'str',
 221                                    'out' : 'str',
 222                                    '*append': 'bool' },
 223   'base': 'ChardevCommon' }
 224
 225 ##
 226 # @ChardevHostdev:
 227 #
 228 # Configuration info for device and pipe chardevs.
 229 #
 230 # @device: The name of the special file for the device,
 231 #          i.e. /dev/ttyS0 on Unix or COM1: on Windows
 232 #
 233 # Since: 1.4
 234 ##
 235 { 'struct': 'ChardevHostdev', 'data': { 'device' : 'str' },
 236   'base': 'ChardevCommon' }
 237
 238 ##
 239 # @ChardevSocket:
 240 #
 241 # Configuration info for (stream) socket chardevs.
 242 #
 243 # @addr: socket address to listen on (server=true)
 244 #        or connect to (server=false)
 245 # @tls-creds: the ID of the TLS credentials object (since 2.6)
 246 # @server: create server socket (default: true)
 247 # @wait: wait for incoming connection on server
 248 #        sockets (default: false).
 249 # @nodelay: set TCP_NODELAY socket option (default: false)
 250 # @telnet: enable telnet protocol on server
 251 #          sockets (default: false)
 252 # @tn3270: enable tn3270 protocol on server
 253 #          sockets (default: false) (Since: 2.10)
 254 # @reconnect: For a client socket, if a socket is disconnected,
 255 #          then attempt a reconnect after the given number of seconds.
 256 #          Setting this to zero disables this function. (default: 0)
 257 #          (Since: 2.2)
 258 #
 259 # Since: 1.4
 260 ##
 261 { 'struct': 'ChardevSocket', 'data': { 'addr'       : 'SocketAddressLegacy',
 262                                      '*tls-creds'  : 'str',
 263                                      '*server'    : 'bool',
 264                                      '*wait'      : 'bool',
 265                                      '*nodelay'   : 'bool',
 266                                      '*telnet'    : 'bool',
 267                                      '*tn3270'    : 'bool',
 268                                      '*reconnect' : 'int' },
 269   'base': 'ChardevCommon' }
 270
 271 ##
 272 # @ChardevUdp:
 273 #
 274 # Configuration info for datagram socket chardevs.
 275 #
 276 # @remote: remote address
 277 # @local: local address
 278 #
 279 # Since: 1.5
 280 ##
 281 { 'struct': 'ChardevUdp', 'data': { 'remote' : 'SocketAddressLegacy',
 282                                   '*local' : 'SocketAddressLegacy' },
 283   'base': 'ChardevCommon' }
 284
 285 ##
 286 # @ChardevMux:
 287 #
 288 # Configuration info for mux chardevs.
 289 #
 290 # @chardev: name of the base chardev.
 291 #
 292 # Since: 1.5
 293 ##
 294 { 'struct': 'ChardevMux', 'data': { 'chardev' : 'str' },
 295   'base': 'ChardevCommon' }
 296
 297 ##
 298 # @ChardevStdio:
 299 #
 300 # Configuration info for stdio chardevs.
 301 #
 302 # @signal: Allow signals (such as SIGINT triggered by ^C)
 303 #          be delivered to qemu.  Default: true in -nographic mode,
 304 #          false otherwise.
 305 #
 306 # Since: 1.5
 307 ##
 308 { 'struct': 'ChardevStdio', 'data': { '*signal' : 'bool' },
 309   'base': 'ChardevCommon' }
 310
 311
 312 ##
 313 # @ChardevSpiceChannel:
 314 #
 315 # Configuration info for spice vm channel chardevs.
 316 #
 317 # @type: kind of channel (for example vdagent).
 318 #
 319 # Since: 1.5
 320 ##
 321 { 'struct': 'ChardevSpiceChannel', 'data': { 'type'  : 'str' },
 322   'base': 'ChardevCommon' }
 323 # TODO: 'if': 'defined(CONFIG_SPICE)'
 324
 325 ##
 326 # @ChardevSpicePort:
 327 #
 328 # Configuration info for spice port chardevs.
 329 #
 330 # @fqdn: name of the channel (see docs/spice-port-fqdn.txt)
 331 #
 332 # Since: 1.5
 333 ##
 334 { 'struct': 'ChardevSpicePort', 'data': { 'fqdn'  : 'str' },
 335   'base': 'ChardevCommon' }
 336 # TODO: 'if': 'defined(CONFIG_SPICE)'
 337
 338 ##
 339 # @ChardevVC:
 340 #
 341 # Configuration info for virtual console chardevs.
 342 #
 343 # @width:  console width,  in pixels
 344 # @height: console height, in pixels
 345 # @cols:   console width,  in chars
 346 # @rows:   console height, in chars
 347 #
 348 # Since: 1.5
 349 ##
 350 { 'struct': 'ChardevVC', 'data': { '*width'  : 'int',
 351                                  '*height' : 'int',
 352                                  '*cols'   : 'int',
 353                                  '*rows'   : 'int' },
 354   'base': 'ChardevCommon' }
 355
 356 ##
 357 # @ChardevRingbuf:
 358 #
 359 # Configuration info for ring buffer chardevs.
 360 #
 361 # @size: ring buffer size, must be power of two, default is 65536
 362 #
 363 # Since: 1.5
 364 ##
 365 { 'struct': 'ChardevRingbuf', 'data': { '*size'  : 'int' },
 366   'base': 'ChardevCommon' }
 367
 368 ##
 369 # @ChardevBackend:
 370 #
 371 # Configuration info for the new chardev backend.
 372 #
 373 # Since: 1.4 (testdev since 2.2, wctablet since 2.9)
 374 ##
 375 { 'union': 'ChardevBackend', 'data': { 'file'   : 'ChardevFile',
 376                                        'serial' : 'ChardevHostdev',
 377                                        'parallel': 'ChardevHostdev',
 378                                        'pipe'   : 'ChardevHostdev',
 379                                        'socket' : 'ChardevSocket',
 380                                        'udp'    : 'ChardevUdp',
 381                                        'pty'    : 'ChardevCommon',
 382                                        'null'   : 'ChardevCommon',
 383                                        'mux'    : 'ChardevMux',
 384                                        'msmouse': 'ChardevCommon',
 385                                        'wctablet' : 'ChardevCommon',
 386                                        'braille': 'ChardevCommon',
 387                                        'testdev': 'ChardevCommon',
 388                                        'stdio'  : 'ChardevStdio',
 389                                        'console': 'ChardevCommon',
 390                                        'spicevmc': 'ChardevSpiceChannel',
 391 # TODO: { 'type': 'ChardevSpiceChannel', 'if': 'defined(CONFIG_SPICE)' },
 392                                        'spiceport': 'ChardevSpicePort',
 393 # TODO: { 'type': 'ChardevSpicePort', 'if': 'defined(CONFIG_SPICE)' },
 394                                        'vc'     : 'ChardevVC',
 395                                        'ringbuf': 'ChardevRingbuf',
 396                                        # next one is just for compatibility
 397                                        'memory' : 'ChardevRingbuf' } }
 398
 399 ##
 400 # @ChardevReturn:
 401 #
 402 # Return info about the chardev backend just created.
 403 #
 404 # @pty: name of the slave pseudoterminal device, present if
 405 #       and only if a chardev of type 'pty' was created
 406 #
 407 # Since: 1.4
 408 ##
 409 { 'struct' : 'ChardevReturn', 'data': { '*pty' : 'str' } }
 410
 411 ##
 412 # @chardev-add:
 413 #
 414 # Add a character device backend
 415 #
 416 # @id: the chardev's ID, must be unique
 417 # @backend: backend type and parameters
 418 #
 419 # Returns: ChardevReturn.
 420 #
 421 # Since: 1.4
 422 #
 423 # Example:
 424 #
 425 # -> { "execute" : "chardev-add",
 426 #      "arguments" : { "id" : "foo",
 427 #                      "backend" : { "type" : "null", "data" : {} } } }
 428 # <- { "return": {} }
 429 #
 430 # -> { "execute" : "chardev-add",
 431 #      "arguments" : { "id" : "bar",
 432 #                      "backend" : { "type" : "file",
 433 #                                    "data" : { "out" : "/tmp/bar.log" } } } }
 434 # <- { "return": {} }
 435 #
 436 # -> { "execute" : "chardev-add",
 437 #      "arguments" : { "id" : "baz",
 438 #                      "backend" : { "type" : "pty", "data" : {} } } }
 439 # <- { "return": { "pty" : "/dev/pty/42" } }
 440 #
 441 ##
 442 { 'command': 'chardev-add', 'data': {'id'      : 'str',
 443                                      'backend' : 'ChardevBackend' },
 444   'returns': 'ChardevReturn' }
 445
 446 ##
 447 # @chardev-change:
 448 #
 449 # Change a character device backend
 450 #
 451 # @id: the chardev's ID, must exist
 452 # @backend: new backend type and parameters
 453 #
 454 # Returns: ChardevReturn.
 455 #
 456 # Since: 2.10
 457 #
 458 # Example:
 459 #
 460 # -> { "execute" : "chardev-change",
 461 #      "arguments" : { "id" : "baz",
 462 #                      "backend" : { "type" : "pty", "data" : {} } } }
 463 # <- { "return": { "pty" : "/dev/pty/42" } }
 464 #
 465 # -> {"execute" : "chardev-change",
 466 #     "arguments" : {
 467 #         "id" : "charchannel2",
 468 #         "backend" : {
 469 #             "type" : "socket",
 470 #             "data" : {
 471 #                 "addr" : {
 472 #                     "type" : "unix" ,
 473 #                     "data" : {
 474 #                         "path" : "/tmp/charchannel2.socket"
 475 #                     }
 476 #                  },
 477 #                  "server" : true,
 478 #                  "wait" : false }}}}
 479 # <- {"return": {}}
 480 #
 481 ##
 482 { 'command': 'chardev-change', 'data': {'id'      : 'str',
 483                                         'backend' : 'ChardevBackend' },
 484   'returns': 'ChardevReturn' }
 485
 486 ##
 487 # @chardev-remove:
 488 #
 489 # Remove a character device backend
 490 #
 491 # @id: the chardev's ID, must exist and not be in use
 492 #
 493 # Returns: Nothing on success
 494 #
 495 # Since: 1.4
 496 #
 497 # Example:
 498 #
 499 # -> { "execute": "chardev-remove", "arguments": { "id" : "foo" } }
 500 # <- { "return": {} }
 501 #
 502 ##
 503 { 'command': 'chardev-remove', 'data': {'id': 'str'} }
 504
 505 ##
 506 # @chardev-send-break:
 507 #
 508 # Send a break to a character device
 509 #
 510 # @id: the chardev's ID, must exist
 511 #
 512 # Returns: Nothing on success
 513 #
 514 # Since: 2.10
 515 #
 516 # Example:
 517 #
 518 # -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
 519 # <- { "return": {} }
 520 #
 521 ##
 522 { 'command': 'chardev-send-break', 'data': {'id': 'str'} }
 523
 524 ##
 525 # @VSERPORT_CHANGE:
 526 #
 527 # Emitted when the guest opens or closes a virtio-serial port.
 528 #
 529 # @id: device identifier of the virtio-serial port
 530 #
 531 # @open: true if the guest has opened the virtio-serial port
 532 #
 533 # Since: 2.1
 534 #
 535 # Example:
 536 #
 537 # <- { "event": "VSERPORT_CHANGE",
 538 #      "data": { "id": "channel0", "open": true },
 539 #      "timestamp": { "seconds": 1401385907, "microseconds": 422329 } }
 540 #
 541 ##
 542 { 'event': 'VSERPORT_CHANGE',
 543   'data': { 'id': 'str', 'open': 'bool' } }