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