| 1 | /*++ |
| 2 | |
| 3 | Copyright (c) Microsoft. All rights reserved. |
| 4 | |
| 5 | Module Name: |
| 6 | |
| 7 | lxbusclient.cpp |
| 8 | |
| 9 | Abstract: |
| 10 | |
| 11 | This file contains the LxBus client library implementation. |
| 12 | |
| 13 | --*/ |
| 14 | |
| 15 | #include "precomp.h" |
| 16 | |
| 17 | NTSTATUS |
| 18 | LxBusClientpIoctlInternal( |
| 19 | _In_ HANDLE Handle, |
| 20 | _In_opt_ HANDLE Event, |
| 21 | _Inout_ PIO_STATUS_BLOCK IoStatusBlock, |
| 22 | _In_ ULONG ControlCode, |
| 23 | _In_reads_bytes_(InputBufferSize) PVOID InputBuffer, |
| 24 | _In_ ULONG InputBufferSize, |
| 25 | _Out_writes_bytes_(OutputBufferSize) PVOID OutputBuffer, |
| 26 | _In_ ULONG OutputBufferSize); |
| 27 | |
| 28 | NTSTATUS |
| 29 | LxBusClientCreateUnnamedServer(_In_ HANDLE MessagePortHandle, _Out_ PLXBUS_IPC_MESSAGE_CREATE_UNNAMED_SERVER_PARAMETERS Parameters) |
| 30 | |
| 31 | /*++ |
| 32 | |
| 33 | Routine Description: |
| 34 | |
| 35 | This routine creates an unnamed server with an LxBus message port. |
| 36 | |
| 37 | Arguments: |
| 38 | |
| 39 | MessagePortHandle - Supplies a handle to a message port. |
| 40 | |
| 41 | Parameters - Supplies a pointer to the create unnamed server parameters. |
| 42 | |
| 43 | Return Value: |
| 44 | |
| 45 | NT status code. |
| 46 | |
| 47 | --*/ |
| 48 | |
| 49 | { |
| 50 | return LxBusClientpIoctl(MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_CREATE_UNNAMED_SERVER, NULL, 0, Parameters, sizeof(*Parameters)); |
| 51 | } |
| 52 | |
| 53 | NTSTATUS |
| 54 | LxBusClientDisconnectConsole(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_DISCONNECT_CONSOLE_PARAMETERS Parameters) |
| 55 | |
| 56 | /*++ |
| 57 | |
| 58 | Routine Description: |
| 59 | |
| 60 | This routine sends a disconnect console ioctl to the specified message port |
| 61 | handle. |
| 62 | |
| 63 | Arguments: |
| 64 | |
| 65 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 66 | ioctl to. |
| 67 | |
| 68 | Parameters - Supplies a pointer to the disconnect console parameters. |
| 69 | |
| 70 | Return Value: |
| 71 | |
| 72 | NT status code. |
| 73 | |
| 74 | --*/ |
| 75 | |
| 76 | { |
| 77 | return LxBusClientpIoctl(MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_DISCONNECT_CONSOLE, Parameters, sizeof(*Parameters), NULL, 0); |
| 78 | } |
| 79 | |
| 80 | NTSTATUS |
| 81 | LxBusClientMarshalConsole(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_MARSHAL_CONSOLE_PARAMETERS Parameters) |
| 82 | |
| 83 | /*++ |
| 84 | |
| 85 | Routine Description: |
| 86 | |
| 87 | This routine sends a marshal console ioctl to the specified message port |
| 88 | handle. |
| 89 | |
| 90 | Arguments: |
| 91 | |
| 92 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 93 | ioctl to. |
| 94 | |
| 95 | Parameters - Supplies a pointer to the marshal console parameters. |
| 96 | |
| 97 | Return Value: |
| 98 | |
| 99 | NT status code. |
| 100 | |
| 101 | --*/ |
| 102 | |
| 103 | { |
| 104 | return LxBusClientpIoctl( |
| 105 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_MARSHAL_CONSOLE, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 106 | } |
| 107 | |
| 108 | NTSTATUS |
| 109 | LxBusClientReleaseConsole(_In_ HANDLE MessagePortHandle, _In_ PLXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL_PARAMETERS Parameters) |
| 110 | |
| 111 | /*++ |
| 112 | |
| 113 | Routine Description: |
| 114 | |
| 115 | This routine sends a cleanup console ioctl to the specified message port |
| 116 | handle. |
| 117 | |
| 118 | Arguments: |
| 119 | |
| 120 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 121 | ioctl to. |
| 122 | |
| 123 | Parameters - Supplies a pointer to the release console parameters. |
| 124 | |
| 125 | Return Value: |
| 126 | |
| 127 | NT status code. |
| 128 | |
| 129 | --*/ |
| 130 | |
| 131 | { |
| 132 | return LxBusClientpIoctl(MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL, Parameters, sizeof(*Parameters), NULL, 0); |
| 133 | } |
| 134 | |
| 135 | NTSTATUS |
| 136 | LxBusClientMarshalForkToken(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_MARSHAL_FORK_TOKEN_PARAMETERS Parameters) |
| 137 | |
| 138 | /*++ |
| 139 | |
| 140 | Routine Description: |
| 141 | |
| 142 | This routine sends a marshal fork token ioctl to the specified message port |
| 143 | handle. |
| 144 | |
| 145 | Arguments: |
| 146 | |
| 147 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 148 | ioctl to. |
| 149 | |
| 150 | Parameters - Supplies a pointer to the marshal fork token parameters. |
| 151 | |
| 152 | Return Value: |
| 153 | |
| 154 | NT status code. |
| 155 | |
| 156 | --*/ |
| 157 | |
| 158 | { |
| 159 | return LxBusClientpIoctl( |
| 160 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_MARSHAL_FORK_TOKEN, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 161 | } |
| 162 | |
| 163 | NTSTATUS |
| 164 | LxBusClientReleaseForkToken(_In_ HANDLE MessagePortHandle, _In_ PLXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL_PARAMETERS Parameters) |
| 165 | |
| 166 | /*++ |
| 167 | |
| 168 | Routine Description: |
| 169 | |
| 170 | This routine sends a cleanup fork token ioctl to the specified message port |
| 171 | handle. |
| 172 | |
| 173 | Arguments: |
| 174 | |
| 175 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 176 | ioctl to. |
| 177 | |
| 178 | Parameters - Supplies a pointer to the release fork token parameters. |
| 179 | |
| 180 | Return Value: |
| 181 | |
| 182 | NT status code. |
| 183 | |
| 184 | --*/ |
| 185 | |
| 186 | { |
| 187 | return LxBusClientpIoctl(MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL, Parameters, sizeof(*Parameters), NULL, 0); |
| 188 | } |
| 189 | |
| 190 | NTSTATUS |
| 191 | LxBusClientMarshalHandle(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_MARSHAL_HANDLE_PARAMETERS Parameters) |
| 192 | |
| 193 | /*++ |
| 194 | |
| 195 | Routine Description: |
| 196 | |
| 197 | This routine sends a marshal handle ioctl to the specified message port |
| 198 | handle. |
| 199 | |
| 200 | Arguments: |
| 201 | |
| 202 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 203 | ioctl to. |
| 204 | |
| 205 | Parameters - Supplies a pointer to the marshal handle parameters. |
| 206 | |
| 207 | Return Value: |
| 208 | |
| 209 | NT status code. |
| 210 | |
| 211 | --*/ |
| 212 | |
| 213 | { |
| 214 | return LxBusClientpIoctl( |
| 215 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_MARSHAL_HANDLE, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 216 | } |
| 217 | |
| 218 | NTSTATUS |
| 219 | LxBusClientReleaseHandle(_In_ HANDLE MessagePortHandle, _In_ PLXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL_PARAMETERS Parameters) |
| 220 | |
| 221 | /*++ |
| 222 | |
| 223 | Routine Description: |
| 224 | |
| 225 | This routine sends a cleanup handle ioctl to the specified message port |
| 226 | handle. |
| 227 | |
| 228 | Arguments: |
| 229 | |
| 230 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 231 | ioctl to. |
| 232 | |
| 233 | Parameters - Supplies a pointer to the release handle parameters. |
| 234 | |
| 235 | Return Value: |
| 236 | |
| 237 | NT status code. |
| 238 | |
| 239 | --*/ |
| 240 | |
| 241 | { |
| 242 | return LxBusClientpIoctl(MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_CANCEL_MARSHAL, Parameters, sizeof(*Parameters), NULL, 0); |
| 243 | } |
| 244 | |
| 245 | NTSTATUS |
| 246 | LxBusClientMarshalProcess(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_MARSHAL_PROCESS_PARAMETERS Parameters) |
| 247 | |
| 248 | /*++ |
| 249 | |
| 250 | Routine Description: |
| 251 | |
| 252 | This routine sends a marshal process ioctl to the specified message port |
| 253 | handle. |
| 254 | |
| 255 | Arguments: |
| 256 | |
| 257 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 258 | ioctl to. |
| 259 | |
| 260 | Parameters - Supplies a pointer to the marshal process parameters. |
| 261 | |
| 262 | Return Value: |
| 263 | |
| 264 | NT status code. |
| 265 | |
| 266 | --*/ |
| 267 | |
| 268 | { |
| 269 | return LxBusClientpIoctl( |
| 270 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_MARSHAL_PROCESS, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 271 | } |
| 272 | |
| 273 | NTSTATUS |
| 274 | LxBusClientpIoctl( |
| 275 | _In_ HANDLE Handle, |
| 276 | _In_ ULONG ControlCode, |
| 277 | _In_reads_bytes_(InputBufferSize) PVOID InputBuffer, |
| 278 | _In_ ULONG InputBufferSize, |
| 279 | _Out_writes_bytes_(OutputBufferSize) PVOID OutputBuffer, |
| 280 | _In_ ULONG OutputBufferSize) |
| 281 | |
| 282 | /*++ |
| 283 | |
| 284 | Routine Description: |
| 285 | |
| 286 | This routine implements the lxbus control device IOCTL handler. |
| 287 | |
| 288 | Arguments: |
| 289 | |
| 290 | Handle - Supplies the handle to issue the ioctl to. |
| 291 | |
| 292 | ControlCode - Supplies ioctl to be processed. |
| 293 | |
| 294 | InputBuffer - Supplies the input buffer as passed by user. |
| 295 | |
| 296 | InputBufferSize - Supplies the size of the input buffer. |
| 297 | |
| 298 | OutputBuffer - Supplies a output buffer as passed by the user. |
| 299 | |
| 300 | OutputBufferSize - Supplies the size of the output buffer. |
| 301 | |
| 302 | Return Value: |
| 303 | |
| 304 | NT status code. |
| 305 | |
| 306 | --*/ |
| 307 | |
| 308 | { |
| 309 | NTSTATUS Status; |
| 310 | IO_STATUS_BLOCK IoStatus; |
| 311 | |
| 312 | ZeroMemory(&IoStatus, sizeof(IoStatus)); |
| 313 | Status = LxBusClientpIoctlInternal(Handle, NULL, &IoStatus, ControlCode, InputBuffer, InputBufferSize, OutputBuffer, OutputBufferSize); |
| 314 | |
| 315 | WI_ASSERT(Status != STATUS_PENDING); |
| 316 | |
| 317 | WI_ASSERT(!NT_SUCCESS(Status) || (OutputBufferSize == IoStatus.Information)); |
| 318 | |
| 319 | return Status; |
| 320 | } |
| 321 | |
| 322 | NTSTATUS |
| 323 | LxBusClientpIoctlInternal( |
| 324 | _In_ HANDLE Handle, |
| 325 | _In_opt_ HANDLE Event, |
| 326 | _Inout_ PIO_STATUS_BLOCK IoStatus, |
| 327 | _In_ ULONG ControlCode, |
| 328 | _In_reads_bytes_(InputBufferSize) PVOID InputBuffer, |
| 329 | _In_ ULONG InputBufferSize, |
| 330 | _Out_writes_bytes_(OutputBufferSize) PVOID OutputBuffer, |
| 331 | _In_ ULONG OutputBufferSize) |
| 332 | |
| 333 | /*++ |
| 334 | |
| 335 | Routine Description: |
| 336 | |
| 337 | This routine implements the lxbus control device IOCTL handler. |
| 338 | |
| 339 | Arguments: |
| 340 | |
| 341 | Handle - Supplies the handle to issue the ioctl to. |
| 342 | |
| 343 | Event - Supplies an optional event used for async IO. |
| 344 | |
| 345 | IoStatus - Supplies a pointer to the IO status block. |
| 346 | |
| 347 | ControlCode - Supplies ioctl to be processed. |
| 348 | |
| 349 | InputBuffer - Supplies the input buffer as passed by user. |
| 350 | |
| 351 | InputBufferSize - Supplies the size of the input buffer. |
| 352 | |
| 353 | OutputBuffer - Supplies a output buffer as passed by the user. |
| 354 | |
| 355 | OutputBufferSize - Supplies the size of the output buffer. |
| 356 | |
| 357 | Return Value: |
| 358 | |
| 359 | NT status code. |
| 360 | |
| 361 | --*/ |
| 362 | |
| 363 | { |
| 364 | NTSTATUS Status; |
| 365 | |
| 366 | if (Handle == NULL) |
| 367 | { |
| 368 | Status = STATUS_DEVICE_NOT_CONNECTED; |
| 369 | goto LxBusClientpIoctlInternalEnd; |
| 370 | } |
| 371 | |
| 372 | Status = NtDeviceIoControlFile(Handle, Event, NULL, NULL, IoStatus, ControlCode, InputBuffer, InputBufferSize, OutputBuffer, OutputBufferSize); |
| 373 | |
| 374 | LxBusClientpIoctlInternalEnd: |
| 375 | return Status; |
| 376 | } |
| 377 | |
| 378 | NTSTATUS |
| 379 | LxBusClientReceiveMessage(_In_ HANDLE MessagePortHandle, _Out_writes_to_(BufferSize, *SizeReceived) PVOID Buffer, _In_ ULONG BufferSize, _Out_ PULONG SizeReceived) |
| 380 | |
| 381 | /*++ |
| 382 | |
| 383 | Routine Description: |
| 384 | |
| 385 | This routine receives a message from the given message port synchronously. |
| 386 | |
| 387 | Arguments: |
| 388 | |
| 389 | MessagePortHandle - Supplies a handle to a message port. |
| 390 | |
| 391 | Buffer - Supplies a pointer to a buffer. |
| 392 | |
| 393 | BufferSize - Supplies the size of the buffer in bytes. |
| 394 | |
| 395 | SizeReceived - Supplies a buffer to store the number of bytes received. |
| 396 | |
| 397 | Return Value: |
| 398 | |
| 399 | NT status code. |
| 400 | |
| 401 | --*/ |
| 402 | |
| 403 | { |
| 404 | HANDLE Event; |
| 405 | IO_STATUS_BLOCK IoStatus; |
| 406 | NTSTATUS Status; |
| 407 | |
| 408 | Event = NULL; |
| 409 | RtlZeroMemory(&IoStatus, sizeof(IoStatus)); |
| 410 | Status = ZwCreateEvent(&Event, EVENT_ALL_ACCESS, NULL, SynchronizationEvent, FALSE); |
| 411 | |
| 412 | if (!NT_SUCCESS(Status)) |
| 413 | { |
| 414 | goto LxBusClientReceiveMessageEnd; |
| 415 | } |
| 416 | |
| 417 | Status = LxBusClientReceiveMessageAsync(MessagePortHandle, Buffer, BufferSize, SizeReceived, &IoStatus, Event); |
| 418 | |
| 419 | if (!NT_SUCCESS(Status)) |
| 420 | { |
| 421 | goto LxBusClientReceiveMessageEnd; |
| 422 | } |
| 423 | |
| 424 | if (Status == STATUS_PENDING) |
| 425 | { |
| 426 | Status = NtWaitForSingleObject(Event, FALSE, NULL); |
| 427 | if (!NT_SUCCESS(Status)) |
| 428 | { |
| 429 | goto LxBusClientReceiveMessageEnd; |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | WI_ASSERT(NT_SUCCESS(Status)); |
| 434 | |
| 435 | WI_ASSERT(IoStatus.Information <= ULONG_MAX); |
| 436 | |
| 437 | *SizeReceived = (ULONG)IoStatus.Information; |
| 438 | Status = IoStatus.Status; |
| 439 | |
| 440 | LxBusClientReceiveMessageEnd: |
| 441 | if (Event != NULL) |
| 442 | { |
| 443 | NtClose(Event); |
| 444 | } |
| 445 | |
| 446 | return Status; |
| 447 | } |
| 448 | |
| 449 | NTSTATUS |
| 450 | LxBusClientReceiveMessageAsync( |
| 451 | _In_ HANDLE MessagePortHandle, |
| 452 | _Out_writes_bytes_to_(BufferSize, *SizeReceived) PVOID Buffer, |
| 453 | _In_ ULONG BufferSize, |
| 454 | _Out_ PULONG SizeReceived, |
| 455 | _Out_ PIO_STATUS_BLOCK IoStatus, |
| 456 | _Inout_opt_ HANDLE Event) |
| 457 | |
| 458 | /*++ |
| 459 | |
| 460 | Routine Description: |
| 461 | |
| 462 | This routine receives a message from the given message port asynchronously. |
| 463 | |
| 464 | Arguments: |
| 465 | |
| 466 | MessagePortHandle - Supplies a handle to a message port. |
| 467 | |
| 468 | Buffer - Supplies a pointer to a buffer. |
| 469 | |
| 470 | BufferSize - Supplies the size of the buffer in bytes. |
| 471 | |
| 472 | SizeReceived - Supplies a buffer to store the number of bytes received. |
| 473 | |
| 474 | IoStatus - Supplies a pointer to an io status block. |
| 475 | |
| 476 | Event - Supplies an optional event to be signaled when the operation is |
| 477 | complete. |
| 478 | |
| 479 | Return Value: |
| 480 | |
| 481 | NT status code. |
| 482 | |
| 483 | --*/ |
| 484 | |
| 485 | { |
| 486 | LARGE_INTEGER ByteOffset{}; |
| 487 | const NTSTATUS Status = NtReadFile(MessagePortHandle, Event, NULL, NULL, IoStatus, Buffer, BufferSize, &ByteOffset, NULL); |
| 488 | if (Status == STATUS_SUCCESS) |
| 489 | { |
| 490 | WI_ASSERT(IoStatus->Information <= ULONG_MAX); |
| 491 | |
| 492 | *SizeReceived = (ULONG)IoStatus->Information; |
| 493 | } |
| 494 | |
| 495 | return Status; |
| 496 | } |
| 497 | |
| 498 | NTSTATUS |
| 499 | LxBusClientRegisterServer(_In_ HANDLE LxBusHandle, _Inout_ PLXBUS_REGISTER_SERVER_PARAMETERS Parameters) |
| 500 | |
| 501 | /*++ |
| 502 | |
| 503 | Routine Description: |
| 504 | |
| 505 | This routine registers an LxBus server with the given name. |
| 506 | |
| 507 | Arguments: |
| 508 | |
| 509 | LxBusHandle - The LxBusHandle on which to perform the registration. |
| 510 | |
| 511 | Parameters - Supplies a pointer to the register server parameters. |
| 512 | |
| 513 | Return Value: |
| 514 | |
| 515 | NT status code. |
| 516 | |
| 517 | --*/ |
| 518 | |
| 519 | { |
| 520 | return LxBusClientpIoctl(LxBusHandle, LXBUS_IOCTL_REGISTER_SERVER, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 521 | } |
| 522 | |
| 523 | NTSTATUS |
| 524 | LxBusClientRegisterUserCallbackAsync( |
| 525 | _In_ HANDLE LxBusHandle, |
| 526 | _In_ HANDLE Event, |
| 527 | _Inout_ PIO_STATUS_BLOCK IoStatus, |
| 528 | _Inout_ PLXBUS_REGISTER_USER_CALLBACK_PARAMETERS Parameters, |
| 529 | _Out_ PVOID OutputBuffer, |
| 530 | _In_ ULONG OutputBufferSize) |
| 531 | |
| 532 | /*++ |
| 533 | |
| 534 | Routine Description: |
| 535 | |
| 536 | This routine sends a user-callback registration ioctl to the specified |
| 537 | instance handle. |
| 538 | |
| 539 | Arguments: |
| 540 | |
| 541 | LxBusHandle - Supplies ths instance handle to issue the ioctl to. |
| 542 | |
| 543 | Event - Supplies an event to be signalled when the request has completed. |
| 544 | |
| 545 | IoStatus - Supplies a pointer to the IO status block. |
| 546 | |
| 547 | Parameters - Supplies a pointer to the user callback parameters. |
| 548 | |
| 549 | OutputBuffer - Supplies a pointer to the output buffer. |
| 550 | |
| 551 | OutputBufferSize - Supplies the size in bytes of the output buffer. |
| 552 | |
| 553 | Return Value: |
| 554 | |
| 555 | NT status code. |
| 556 | |
| 557 | --*/ |
| 558 | |
| 559 | { |
| 560 | return LxBusClientpIoctlInternal( |
| 561 | LxBusHandle, Event, IoStatus, LXBUS_IOCTL_REGISTER_USER_CALLBACK, Parameters, sizeof(*Parameters), OutputBuffer, OutputBufferSize); |
| 562 | } |
| 563 | |
| 564 | NTSTATUS |
| 565 | LxBusClientSendMessage(_In_ HANDLE MessagePortHandle, _In_reads_bytes_(BufferSize) PVOID Buffer, _In_ ULONG BufferSize) |
| 566 | |
| 567 | /*++ |
| 568 | |
| 569 | Routine Description: |
| 570 | |
| 571 | This routine sends a message to the given message port synchronously. |
| 572 | |
| 573 | Arguments: |
| 574 | |
| 575 | MessagePortHandle - Supplies a handle to a message port. |
| 576 | |
| 577 | Buffer - Supplies a pointer to a buffer. |
| 578 | |
| 579 | BufferSize - Supplies the size of the buffer in bytes. |
| 580 | |
| 581 | Return Value: |
| 582 | |
| 583 | NT status code. |
| 584 | |
| 585 | --*/ |
| 586 | |
| 587 | { |
| 588 | HANDLE Event; |
| 589 | IO_STATUS_BLOCK IoStatus; |
| 590 | NTSTATUS Status; |
| 591 | |
| 592 | Event = NULL; |
| 593 | RtlZeroMemory(&IoStatus, sizeof(IoStatus)); |
| 594 | Status = ZwCreateEvent(&Event, EVENT_ALL_ACCESS, NULL, SynchronizationEvent, FALSE); |
| 595 | |
| 596 | if (!NT_SUCCESS(Status)) |
| 597 | { |
| 598 | goto LxBusClientSendMessageEnd; |
| 599 | } |
| 600 | |
| 601 | Status = LxBusClientSendMessageAsync(MessagePortHandle, Buffer, BufferSize, &IoStatus, Event); |
| 602 | |
| 603 | if (!NT_SUCCESS(Status)) |
| 604 | { |
| 605 | goto LxBusClientSendMessageEnd; |
| 606 | } |
| 607 | |
| 608 | WI_ASSERT((Status != STATUS_SUCCESS) || (BufferSize == IoStatus.Information)); |
| 609 | |
| 610 | if (Status == STATUS_PENDING) |
| 611 | { |
| 612 | Status = NtWaitForSingleObject(Event, FALSE, NULL); |
| 613 | if (!NT_SUCCESS(Status)) |
| 614 | { |
| 615 | goto LxBusClientSendMessageEnd; |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | Status = IoStatus.Status; |
| 620 | |
| 621 | LxBusClientSendMessageEnd: |
| 622 | if (Event != NULL) |
| 623 | { |
| 624 | NtClose(Event); |
| 625 | } |
| 626 | |
| 627 | return Status; |
| 628 | } |
| 629 | |
| 630 | NTSTATUS |
| 631 | LxBusClientSendMessageAsync( |
| 632 | _In_ HANDLE MessagePortHandle, _In_reads_bytes_(BufferSize) PVOID Buffer, _In_ ULONG BufferSize, _Out_ PIO_STATUS_BLOCK IoStatus, _Inout_opt_ HANDLE Event) |
| 633 | |
| 634 | /*++ |
| 635 | |
| 636 | Routine Description: |
| 637 | |
| 638 | This routine sends a message to the given message port asynchronously. |
| 639 | |
| 640 | Arguments: |
| 641 | |
| 642 | MessagePortHandle - Supplies a handle to a message port. |
| 643 | |
| 644 | Buffer - Supplies a pointer to a buffer. |
| 645 | |
| 646 | BufferSize - Supplies the size of the buffer in bytes. |
| 647 | |
| 648 | IoStatus - Supplies a pointer to an io status block. |
| 649 | |
| 650 | Event - Supplies an optional event to be signaled when the operation is |
| 651 | complete. |
| 652 | |
| 653 | Return Value: |
| 654 | |
| 655 | NT status code. |
| 656 | |
| 657 | --*/ |
| 658 | |
| 659 | { |
| 660 | LARGE_INTEGER ByteOffset{}; |
| 661 | const NTSTATUS Status = NtWriteFile(MessagePortHandle, Event, NULL, NULL, IoStatus, Buffer, BufferSize, &ByteOffset, NULL); |
| 662 | |
| 663 | WI_ASSERT((Status != STATUS_SUCCESS) || (BufferSize == IoStatus->Information)); |
| 664 | |
| 665 | return Status; |
| 666 | } |
| 667 | |
| 668 | NTSTATUS |
| 669 | LxBusClientUnmarshalProcess(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_UNMARSHAL_PROCESS_PARAMETERS Parameters) |
| 670 | |
| 671 | /*++ |
| 672 | |
| 673 | Routine Description: |
| 674 | |
| 675 | This routine sends a unmarshal process ioctl to the specified message port |
| 676 | handle. |
| 677 | |
| 678 | Arguments: |
| 679 | |
| 680 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 681 | ioctl to. |
| 682 | |
| 683 | Parameters - Supplies a pointer to the unmarshal process parameters. |
| 684 | |
| 685 | Return Value: |
| 686 | |
| 687 | NT status code. |
| 688 | |
| 689 | --*/ |
| 690 | |
| 691 | { |
| 692 | return LxBusClientpIoctl( |
| 693 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_UNMARSHAL_PROCESS, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 694 | } |
| 695 | |
| 696 | NTSTATUS |
| 697 | LxBusClientUnmarshalVfsFile(_In_ HANDLE MessagePortHandle, _Inout_ PLXBUS_IPC_MESSAGE_UNMARSHAL_VFS_FILE_PARAMETERS Parameters) |
| 698 | |
| 699 | /*++ |
| 700 | |
| 701 | Routine Description: |
| 702 | |
| 703 | This routine sends a unmarshal vfs file ioctl to the specified message port |
| 704 | handle. |
| 705 | |
| 706 | Arguments: |
| 707 | |
| 708 | MessagePortHandle - Supplies a handle to the message port to issue the |
| 709 | ioctl to. |
| 710 | |
| 711 | Parameters - Supplies a pointer to the unmarshal vfs file parameters. |
| 712 | |
| 713 | Return Value: |
| 714 | |
| 715 | NT status code. |
| 716 | |
| 717 | --*/ |
| 718 | |
| 719 | { |
| 720 | return LxBusClientpIoctl( |
| 721 | MessagePortHandle, LXBUS_IPC_MESSAGE_IOCTL_UNMARSHAL_VFS_FILE, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 722 | } |
| 723 | |
| 724 | NTSTATUS |
| 725 | LxBusClientUserCallbackSendResponse(_In_ HANDLE LxBusHandle, _Inout_ PLXBUS_REGISTER_USER_CALLBACK_PARAMETERS Parameters) |
| 726 | |
| 727 | /*++ |
| 728 | |
| 729 | Routine Description: |
| 730 | |
| 731 | This routine sends a response from a user-callback to the specified |
| 732 | instance handle. |
| 733 | |
| 734 | Arguments: |
| 735 | |
| 736 | LxBusHandle - Supplies ths instance handle to issue the ioctl to. |
| 737 | |
| 738 | Parameters - Supplies a pointer to the user callback parameters. |
| 739 | |
| 740 | Return Value: |
| 741 | |
| 742 | NT status code. |
| 743 | |
| 744 | --*/ |
| 745 | |
| 746 | { |
| 747 | return LxBusClientpIoctl(LxBusHandle, LXBUS_IOCTL_REGISTER_USER_CALLBACK, Parameters, sizeof(*Parameters), NULL, 0); |
| 748 | } |
| 749 | |
| 750 | NTSTATUS |
| 751 | LxBusClientWaitForConnection(_In_ HANDLE ServerPortHandle, _Out_ PLXBUS_IPC_SERVER_WAIT_FOR_CONNECTION_PARAMETERS Parameters) |
| 752 | |
| 753 | /*++ |
| 754 | |
| 755 | Routine Description: |
| 756 | |
| 757 | Waits for a client connection on the provided server port. |
| 758 | |
| 759 | Arguments: |
| 760 | |
| 761 | ServerPortHandle - Supplies a handle to the server port. |
| 762 | |
| 763 | Parameters - Supplies a pointer to the wait for connection parameters. |
| 764 | |
| 765 | Return Value: |
| 766 | |
| 767 | NT status code. |
| 768 | |
| 769 | --*/ |
| 770 | |
| 771 | { |
| 772 | return LxBusClientpIoctl( |
| 773 | ServerPortHandle, LXBUS_IPC_SERVER_IOCTL_WAIT_FOR_CONNECTION, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 774 | } |
| 775 | |
| 776 | NTSTATUS |
| 777 | LxBusClientWaitForLxProcess(_In_ HANDLE LxProcessHandle, _Out_ PLXBUS_IPC_LX_PROCESS_WAIT_FOR_TERMINATION_PARAMETERS Parameters) |
| 778 | |
| 779 | /*++ |
| 780 | |
| 781 | Routine Description: |
| 782 | |
| 783 | Waits for a client connection on the provided server port. |
| 784 | |
| 785 | Arguments: |
| 786 | |
| 787 | LxProcessHandle - Supplies a handle to the LX process. |
| 788 | |
| 789 | Parameters - Supplies a pointer to the wait for termination parameters. |
| 790 | |
| 791 | Return Value: |
| 792 | |
| 793 | NT status code. |
| 794 | |
| 795 | --*/ |
| 796 | |
| 797 | { |
| 798 | return LxBusClientpIoctl( |
| 799 | LxProcessHandle, LXBUS_IPC_LX_PROCESS_IOCTL_WAIT_FOR_TERMINATION, Parameters, sizeof(*Parameters), Parameters, sizeof(*Parameters)); |
| 800 | } |