1 /* 2 * USB redirector usb-guest 3 * 4 * Copyright (c) 2011-2012 Red Hat, Inc. 5 * 6 * Red Hat Authors: 7 * Hans de Goede <hdegoede@redhat.com> 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a copy 10 * of this software and associated documentation files (the "Software"), to deal 11 * in the Software without restriction, including without limitation the rights 12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 13 * copies of the Software, and to permit persons to whom the Software is 14 * furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included in 17 * all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 25 * THE SOFTWARE. 26 */ 27 28 #include "qemu/osdep.h" 29 #include "qemu/units.h" 30 #include "qapi/error.h" 31 #include "qemu-common.h" 32 #include "qemu/timer.h" 33 #include "sysemu/sysemu.h" 34 #include "qapi/qmp/qerror.h" 35 #include "qemu/error-report.h" 36 #include "qemu/iov.h" 37 #include "chardev/char-fe.h" 38 39 #include <usbredirparser.h> 40 #include <usbredirfilter.h> 41 42 #include "hw/usb.h" 43 44 /* ERROR is defined below. Remove any previous definition. */ 45 #undef ERROR 46 47 #define MAX_ENDPOINTS 32 48 #define NO_INTERFACE_INFO 255 /* Valid interface_count always <= 32 */ 49 #define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f)) 50 #define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f)) 51 #define USBEP2I(usb_ep) (((usb_ep)->pid == USB_TOKEN_IN) ? \ 52 ((usb_ep)->nr | 0x10) : ((usb_ep)->nr)) 53 #define I2USBEP(d, i) (usb_ep_get(&(d)->dev, \ 54 ((i) & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT, \ 55 (i) & 0x0f)) 56 57 #ifndef USBREDIR_VERSION /* This is not defined in older usbredir versions */ 58 #define USBREDIR_VERSION 0 59 #endif 60 61 typedef struct USBRedirDevice USBRedirDevice; 62 63 /* Struct to hold buffered packets */ 64 struct buf_packet { 65 uint8_t *data; 66 void *free_on_destroy; 67 uint16_t len; 68 uint16_t offset; 69 uint8_t status; 70 QTAILQ_ENTRY(buf_packet)next; 71 }; 72 73 struct endp_data { 74 USBRedirDevice *dev; 75 uint8_t type; 76 uint8_t interval; 77 uint8_t interface; /* bInterfaceNumber this ep belongs to */ 78 uint16_t max_packet_size; /* In bytes, not wMaxPacketSize format !! */ 79 uint32_t max_streams; 80 uint8_t iso_started; 81 uint8_t iso_error; /* For reporting iso errors to the HC */ 82 uint8_t interrupt_started; 83 uint8_t interrupt_error; 84 uint8_t bulk_receiving_enabled; 85 uint8_t bulk_receiving_started; 86 uint8_t bufpq_prefilled; 87 uint8_t bufpq_dropping_packets; 88 QTAILQ_HEAD(, buf_packet) bufpq; 89 int32_t bufpq_size; 90 int32_t bufpq_target_size; 91 USBPacket *pending_async_packet; 92 }; 93 94 struct PacketIdQueueEntry { 95 uint64_t id; 96 QTAILQ_ENTRY(PacketIdQueueEntry)next; 97 }; 98 99 struct PacketIdQueue { 100 USBRedirDevice *dev; 101 const char *name; 102 QTAILQ_HEAD(, PacketIdQueueEntry) head; 103 int size; 104 }; 105 106 struct USBRedirDevice { 107 USBDevice dev; 108 /* Properties */ 109 CharBackend cs; 110 bool enable_streams; 111 uint8_t debug; 112 int32_t bootindex; 113 char *filter_str; 114 /* Data passed from chardev the fd_read cb to the usbredirparser read cb */ 115 const uint8_t *read_buf; 116 int read_buf_size; 117 /* Active chardev-watch-tag */ 118 guint watch; 119 /* For async handling of close / reject */ 120 QEMUBH *chardev_close_bh; 121 QEMUBH *device_reject_bh; 122 /* To delay the usb attach in case of quick chardev close + open */ 123 QEMUTimer *attach_timer; 124 int64_t next_attach_time; 125 struct usbredirparser *parser; 126 struct endp_data endpoint[MAX_ENDPOINTS]; 127 struct PacketIdQueue cancelled; 128 struct PacketIdQueue already_in_flight; 129 void (*buffered_bulk_in_complete)(USBRedirDevice *, USBPacket *, uint8_t); 130 /* Data for device filtering */ 131 struct usb_redir_device_connect_header device_info; 132 struct usb_redir_interface_info_header interface_info; 133 struct usbredirfilter_rule *filter_rules; 134 int filter_rules_count; 135 int compatible_speedmask; 136 VMChangeStateEntry *vmstate; 137 }; 138 139 #define TYPE_USB_REDIR "usb-redir" 140 #define USB_REDIRECT(obj) OBJECT_CHECK(USBRedirDevice, (obj), TYPE_USB_REDIR) 141 142 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h); 143 static void usbredir_device_connect(void *priv, 144 struct usb_redir_device_connect_header *device_connect); 145 static void usbredir_device_disconnect(void *priv); 146 static void usbredir_interface_info(void *priv, 147 struct usb_redir_interface_info_header *interface_info); 148 static void usbredir_ep_info(void *priv, 149 struct usb_redir_ep_info_header *ep_info); 150 static void usbredir_configuration_status(void *priv, uint64_t id, 151 struct usb_redir_configuration_status_header *configuration_status); 152 static void usbredir_alt_setting_status(void *priv, uint64_t id, 153 struct usb_redir_alt_setting_status_header *alt_setting_status); 154 static void usbredir_iso_stream_status(void *priv, uint64_t id, 155 struct usb_redir_iso_stream_status_header *iso_stream_status); 156 static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, 157 struct usb_redir_interrupt_receiving_status_header 158 *interrupt_receiving_status); 159 static void usbredir_bulk_streams_status(void *priv, uint64_t id, 160 struct usb_redir_bulk_streams_status_header *bulk_streams_status); 161 static void usbredir_bulk_receiving_status(void *priv, uint64_t id, 162 struct usb_redir_bulk_receiving_status_header *bulk_receiving_status); 163 static void usbredir_control_packet(void *priv, uint64_t id, 164 struct usb_redir_control_packet_header *control_packet, 165 uint8_t *data, int data_len); 166 static void usbredir_bulk_packet(void *priv, uint64_t id, 167 struct usb_redir_bulk_packet_header *bulk_packet, 168 uint8_t *data, int data_len); 169 static void usbredir_iso_packet(void *priv, uint64_t id, 170 struct usb_redir_iso_packet_header *iso_packet, 171 uint8_t *data, int data_len); 172 static void usbredir_interrupt_packet(void *priv, uint64_t id, 173 struct usb_redir_interrupt_packet_header *interrupt_header, 174 uint8_t *data, int data_len); 175 static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, 176 struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, 177 uint8_t *data, int data_len); 178 179 static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, 180 int status); 181 182 #define VERSION "qemu usb-redir guest " QEMU_VERSION 183 184 /* 185 * Logging stuff 186 */ 187 188 #define ERROR(...) \ 189 do { \ 190 if (dev->debug >= usbredirparser_error) { \ 191 error_report("usb-redir error: " __VA_ARGS__); \ 192 } \ 193 } while (0) 194 #define WARNING(...) \ 195 do { \ 196 if (dev->debug >= usbredirparser_warning) { \ 197 warn_report("" __VA_ARGS__); \ 198 } \ 199 } while (0) 200 #define INFO(...) \ 201 do { \ 202 if (dev->debug >= usbredirparser_info) { \ 203 error_report("usb-redir: " __VA_ARGS__); \ 204 } \ 205 } while (0) 206 #define DPRINTF(...) \ 207 do { \ 208 if (dev->debug >= usbredirparser_debug) { \ 209 error_report("usb-redir: " __VA_ARGS__); \ 210 } \ 211 } while (0) 212 #define DPRINTF2(...) \ 213 do { \ 214 if (dev->debug >= usbredirparser_debug_data) { \ 215 error_report("usb-redir: " __VA_ARGS__); \ 216 } \ 217 } while (0) 218 219 static void usbredir_log(void *priv, int level, const char *msg) 220 { 221 USBRedirDevice *dev = priv; 222 223 if (dev->debug < level) { 224 return; 225 } 226 227 error_report("%s", msg); 228 } 229 230 static void usbredir_log_data(USBRedirDevice *dev, const char *desc, 231 const uint8_t *data, int len) 232 { 233 if (dev->debug < usbredirparser_debug_data) { 234 return; 235 } 236 qemu_hexdump((char *)data, stderr, desc, len); 237 } 238 239 /* 240 * usbredirparser io functions 241 */ 242 243 static int usbredir_read(void *priv, uint8_t *data, int count) 244 { 245 USBRedirDevice *dev = priv; 246 247 if (dev->read_buf_size < count) { 248 count = dev->read_buf_size; 249 } 250 251 memcpy(data, dev->read_buf, count); 252 253 dev->read_buf_size -= count; 254 if (dev->read_buf_size) { 255 dev->read_buf += count; 256 } else { 257 dev->read_buf = NULL; 258 } 259 260 return count; 261 } 262 263 static gboolean usbredir_write_unblocked(GIOChannel *chan, GIOCondition cond, 264 void *opaque) 265 { 266 USBRedirDevice *dev = opaque; 267 268 dev->watch = 0; 269 usbredirparser_do_write(dev->parser); 270 271 return FALSE; 272 } 273 274 static int usbredir_write(void *priv, uint8_t *data, int count) 275 { 276 USBRedirDevice *dev = priv; 277 int r; 278 279 if (!qemu_chr_fe_backend_open(&dev->cs)) { 280 return 0; 281 } 282 283 /* Don't send new data to the chardev until our state is fully synced */ 284 if (!runstate_check(RUN_STATE_RUNNING)) { 285 return 0; 286 } 287 288 r = qemu_chr_fe_write(&dev->cs, data, count); 289 if (r < count) { 290 if (!dev->watch) { 291 dev->watch = qemu_chr_fe_add_watch(&dev->cs, G_IO_OUT | G_IO_HUP, 292 usbredir_write_unblocked, dev); 293 } 294 if (r < 0) { 295 r = 0; 296 } 297 } 298 return r; 299 } 300 301 /* 302 * Cancelled and buffered packets helpers 303 */ 304 305 static void packet_id_queue_init(struct PacketIdQueue *q, 306 USBRedirDevice *dev, const char *name) 307 { 308 q->dev = dev; 309 q->name = name; 310 QTAILQ_INIT(&q->head); 311 q->size = 0; 312 } 313 314 static void packet_id_queue_add(struct PacketIdQueue *q, uint64_t id) 315 { 316 USBRedirDevice *dev = q->dev; 317 struct PacketIdQueueEntry *e; 318 319 DPRINTF("adding packet id %"PRIu64" to %s queue\n", id, q->name); 320 321 e = g_new0(struct PacketIdQueueEntry, 1); 322 e->id = id; 323 QTAILQ_INSERT_TAIL(&q->head, e, next); 324 q->size++; 325 } 326 327 static int packet_id_queue_remove(struct PacketIdQueue *q, uint64_t id) 328 { 329 USBRedirDevice *dev = q->dev; 330 struct PacketIdQueueEntry *e; 331 332 QTAILQ_FOREACH(e, &q->head, next) { 333 if (e->id == id) { 334 DPRINTF("removing packet id %"PRIu64" from %s queue\n", 335 id, q->name); 336 QTAILQ_REMOVE(&q->head, e, next); 337 q->size--; 338 g_free(e); 339 return 1; 340 } 341 } 342 return 0; 343 } 344 345 static void packet_id_queue_empty(struct PacketIdQueue *q) 346 { 347 USBRedirDevice *dev = q->dev; 348 struct PacketIdQueueEntry *e, *next_e; 349 350 DPRINTF("removing %d packet-ids from %s queue\n", q->size, q->name); 351 352 QTAILQ_FOREACH_SAFE(e, &q->head, next, next_e) { 353 QTAILQ_REMOVE(&q->head, e, next); 354 g_free(e); 355 } 356 q->size = 0; 357 } 358 359 static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) 360 { 361 USBRedirDevice *dev = USB_REDIRECT(udev); 362 int i = USBEP2I(p->ep); 363 364 if (p->combined) { 365 usb_combined_packet_cancel(udev, p); 366 return; 367 } 368 369 if (dev->endpoint[i].pending_async_packet) { 370 assert(dev->endpoint[i].pending_async_packet == p); 371 dev->endpoint[i].pending_async_packet = NULL; 372 return; 373 } 374 375 packet_id_queue_add(&dev->cancelled, p->id); 376 usbredirparser_send_cancel_data_packet(dev->parser, p->id); 377 usbredirparser_do_write(dev->parser); 378 } 379 380 static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id) 381 { 382 if (!dev->dev.attached) { 383 return 1; /* Treat everything as cancelled after a disconnect */ 384 } 385 return packet_id_queue_remove(&dev->cancelled, id); 386 } 387 388 static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev, 389 struct USBEndpoint *ep) 390 { 391 static USBPacket *p; 392 393 /* async handled packets for bulk receiving eps do not count as inflight */ 394 if (dev->endpoint[USBEP2I(ep)].bulk_receiving_started) { 395 return; 396 } 397 398 QTAILQ_FOREACH(p, &ep->queue, queue) { 399 /* Skip combined packets, except for the first */ 400 if (p->combined && p != p->combined->first) { 401 continue; 402 } 403 if (p->state == USB_PACKET_ASYNC) { 404 packet_id_queue_add(&dev->already_in_flight, p->id); 405 } 406 } 407 } 408 409 static void usbredir_fill_already_in_flight(USBRedirDevice *dev) 410 { 411 int ep; 412 struct USBDevice *udev = &dev->dev; 413 414 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_ctl); 415 416 for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { 417 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_in[ep]); 418 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_out[ep]); 419 } 420 } 421 422 static int usbredir_already_in_flight(USBRedirDevice *dev, uint64_t id) 423 { 424 return packet_id_queue_remove(&dev->already_in_flight, id); 425 } 426 427 static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev, 428 uint8_t ep, uint64_t id) 429 { 430 USBPacket *p; 431 432 if (usbredir_is_cancelled(dev, id)) { 433 return NULL; 434 } 435 436 p = usb_ep_find_packet_by_id(&dev->dev, 437 (ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT, 438 ep & 0x0f, id); 439 if (p == NULL) { 440 ERROR("could not find packet with id %"PRIu64"\n", id); 441 } 442 return p; 443 } 444 445 static int bufp_alloc(USBRedirDevice *dev, uint8_t *data, uint16_t len, 446 uint8_t status, uint8_t ep, void *free_on_destroy) 447 { 448 struct buf_packet *bufp; 449 450 if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets && 451 dev->endpoint[EP2I(ep)].bufpq_size > 452 2 * dev->endpoint[EP2I(ep)].bufpq_target_size) { 453 DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep); 454 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1; 455 } 456 /* Since we're interupting the stream anyways, drop enough packets to get 457 back to our target buffer size */ 458 if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) { 459 if (dev->endpoint[EP2I(ep)].bufpq_size > 460 dev->endpoint[EP2I(ep)].bufpq_target_size) { 461 free(data); 462 return -1; 463 } 464 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 465 } 466 467 bufp = g_new(struct buf_packet, 1); 468 bufp->data = data; 469 bufp->len = len; 470 bufp->offset = 0; 471 bufp->status = status; 472 bufp->free_on_destroy = free_on_destroy; 473 QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); 474 dev->endpoint[EP2I(ep)].bufpq_size++; 475 return 0; 476 } 477 478 static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, 479 uint8_t ep) 480 { 481 QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); 482 dev->endpoint[EP2I(ep)].bufpq_size--; 483 free(bufp->free_on_destroy); 484 g_free(bufp); 485 } 486 487 static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) 488 { 489 struct buf_packet *buf, *buf_next; 490 491 QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) { 492 bufp_free(dev, buf, ep); 493 } 494 } 495 496 /* 497 * USBDevice callbacks 498 */ 499 500 static void usbredir_handle_reset(USBDevice *udev) 501 { 502 USBRedirDevice *dev = USB_REDIRECT(udev); 503 504 DPRINTF("reset device\n"); 505 usbredirparser_send_reset(dev->parser); 506 usbredirparser_do_write(dev->parser); 507 } 508 509 static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, 510 uint8_t ep) 511 { 512 int status, len; 513 if (!dev->endpoint[EP2I(ep)].iso_started && 514 !dev->endpoint[EP2I(ep)].iso_error) { 515 struct usb_redir_start_iso_stream_header start_iso = { 516 .endpoint = ep, 517 }; 518 int pkts_per_sec; 519 520 if (dev->dev.speed == USB_SPEED_HIGH) { 521 pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval; 522 } else { 523 pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval; 524 } 525 /* Testing has shown that we need circa 60 ms buffer */ 526 dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; 527 528 /* Aim for approx 100 interrupts / second on the client to 529 balance latency and interrupt load */ 530 start_iso.pkts_per_urb = pkts_per_sec / 100; 531 if (start_iso.pkts_per_urb < 1) { 532 start_iso.pkts_per_urb = 1; 533 } else if (start_iso.pkts_per_urb > 32) { 534 start_iso.pkts_per_urb = 32; 535 } 536 537 start_iso.no_urbs = DIV_ROUND_UP( 538 dev->endpoint[EP2I(ep)].bufpq_target_size, 539 start_iso.pkts_per_urb); 540 /* Output endpoints pre-fill only 1/2 of the packets, keeping the rest 541 as overflow buffer. Also see the usbredir protocol documentation */ 542 if (!(ep & USB_DIR_IN)) { 543 start_iso.no_urbs *= 2; 544 } 545 if (start_iso.no_urbs > 16) { 546 start_iso.no_urbs = 16; 547 } 548 549 /* No id, we look at the ep when receiving a status back */ 550 usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso); 551 usbredirparser_do_write(dev->parser); 552 DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n", 553 pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); 554 dev->endpoint[EP2I(ep)].iso_started = 1; 555 dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; 556 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 557 } 558 559 if (ep & USB_DIR_IN) { 560 struct buf_packet *isop; 561 562 if (dev->endpoint[EP2I(ep)].iso_started && 563 !dev->endpoint[EP2I(ep)].bufpq_prefilled) { 564 if (dev->endpoint[EP2I(ep)].bufpq_size < 565 dev->endpoint[EP2I(ep)].bufpq_target_size) { 566 return; 567 } 568 dev->endpoint[EP2I(ep)].bufpq_prefilled = 1; 569 } 570 571 isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); 572 if (isop == NULL) { 573 DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n", 574 ep, dev->endpoint[EP2I(ep)].iso_error); 575 /* Re-fill the buffer */ 576 dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; 577 /* Check iso_error for stream errors, otherwise its an underrun */ 578 status = dev->endpoint[EP2I(ep)].iso_error; 579 dev->endpoint[EP2I(ep)].iso_error = 0; 580 p->status = status ? USB_RET_IOERROR : USB_RET_SUCCESS; 581 return; 582 } 583 DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep, 584 isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); 585 586 status = isop->status; 587 len = isop->len; 588 if (len > p->iov.size) { 589 ERROR("received iso data is larger then packet ep %02X (%d > %d)\n", 590 ep, len, (int)p->iov.size); 591 len = p->iov.size; 592 status = usb_redir_babble; 593 } 594 usb_packet_copy(p, isop->data, len); 595 bufp_free(dev, isop, ep); 596 usbredir_handle_status(dev, p, status); 597 } else { 598 /* If the stream was not started because of a pending error don't 599 send the packet to the usb-host */ 600 if (dev->endpoint[EP2I(ep)].iso_started) { 601 struct usb_redir_iso_packet_header iso_packet = { 602 .endpoint = ep, 603 .length = p->iov.size 604 }; 605 uint8_t buf[p->iov.size]; 606 /* No id, we look at the ep when receiving a status back */ 607 usb_packet_copy(p, buf, p->iov.size); 608 usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet, 609 buf, p->iov.size); 610 usbredirparser_do_write(dev->parser); 611 } 612 status = dev->endpoint[EP2I(ep)].iso_error; 613 dev->endpoint[EP2I(ep)].iso_error = 0; 614 DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status, 615 p->iov.size); 616 usbredir_handle_status(dev, p, status); 617 } 618 } 619 620 static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) 621 { 622 struct usb_redir_stop_iso_stream_header stop_iso_stream = { 623 .endpoint = ep 624 }; 625 if (dev->endpoint[EP2I(ep)].iso_started) { 626 usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream); 627 DPRINTF("iso stream stopped ep %02X\n", ep); 628 dev->endpoint[EP2I(ep)].iso_started = 0; 629 } 630 dev->endpoint[EP2I(ep)].iso_error = 0; 631 usbredir_free_bufpq(dev, ep); 632 } 633 634 /* 635 * The usb-host may poll the endpoint faster then our guest, resulting in lots 636 * of smaller bulkp-s. The below buffered_bulk_in_complete* functions combine 637 * data from multiple bulkp-s into a single packet, avoiding bufpq overflows. 638 */ 639 static void usbredir_buffered_bulk_add_data_to_packet(USBRedirDevice *dev, 640 struct buf_packet *bulkp, int count, USBPacket *p, uint8_t ep) 641 { 642 usb_packet_copy(p, bulkp->data + bulkp->offset, count); 643 bulkp->offset += count; 644 if (bulkp->offset == bulkp->len) { 645 /* Store status in the last packet with data from this bulkp */ 646 usbredir_handle_status(dev, p, bulkp->status); 647 bufp_free(dev, bulkp, ep); 648 } 649 } 650 651 static void usbredir_buffered_bulk_in_complete_raw(USBRedirDevice *dev, 652 USBPacket *p, uint8_t ep) 653 { 654 struct buf_packet *bulkp; 655 int count; 656 657 while ((bulkp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq)) && 658 p->actual_length < p->iov.size && p->status == USB_RET_SUCCESS) { 659 count = bulkp->len - bulkp->offset; 660 if (count > (p->iov.size - p->actual_length)) { 661 count = p->iov.size - p->actual_length; 662 } 663 usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); 664 } 665 } 666 667 static void usbredir_buffered_bulk_in_complete_ftdi(USBRedirDevice *dev, 668 USBPacket *p, uint8_t ep) 669 { 670 const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; 671 uint8_t header[2] = { 0, 0 }; 672 struct buf_packet *bulkp; 673 int count; 674 675 while ((bulkp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq)) && 676 p->actual_length < p->iov.size && p->status == USB_RET_SUCCESS) { 677 if (bulkp->len < 2) { 678 WARNING("malformed ftdi bulk in packet\n"); 679 bufp_free(dev, bulkp, ep); 680 continue; 681 } 682 683 if ((p->actual_length % maxp) == 0) { 684 usb_packet_copy(p, bulkp->data, 2); 685 memcpy(header, bulkp->data, 2); 686 } else { 687 if (bulkp->data[0] != header[0] || bulkp->data[1] != header[1]) { 688 break; /* Different header, add to next packet */ 689 } 690 } 691 692 if (bulkp->offset == 0) { 693 bulkp->offset = 2; /* Skip header */ 694 } 695 count = bulkp->len - bulkp->offset; 696 /* Must repeat the header at maxp interval */ 697 if (count > (maxp - (p->actual_length % maxp))) { 698 count = maxp - (p->actual_length % maxp); 699 } 700 usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); 701 } 702 } 703 704 static void usbredir_buffered_bulk_in_complete(USBRedirDevice *dev, 705 USBPacket *p, uint8_t ep) 706 { 707 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 708 dev->buffered_bulk_in_complete(dev, p, ep); 709 DPRINTF("bulk-token-in ep %02X status %d len %d id %"PRIu64"\n", 710 ep, p->status, p->actual_length, p->id); 711 } 712 713 static void usbredir_handle_buffered_bulk_in_data(USBRedirDevice *dev, 714 USBPacket *p, uint8_t ep) 715 { 716 /* Input bulk endpoint, buffered packet input */ 717 if (!dev->endpoint[EP2I(ep)].bulk_receiving_started) { 718 int bpt; 719 struct usb_redir_start_bulk_receiving_header start = { 720 .endpoint = ep, 721 .stream_id = 0, 722 .no_transfers = 5, 723 }; 724 /* Round bytes_per_transfer up to a multiple of max_packet_size */ 725 bpt = 512 + dev->endpoint[EP2I(ep)].max_packet_size - 1; 726 bpt /= dev->endpoint[EP2I(ep)].max_packet_size; 727 bpt *= dev->endpoint[EP2I(ep)].max_packet_size; 728 start.bytes_per_transfer = bpt; 729 /* No id, we look at the ep when receiving a status back */ 730 usbredirparser_send_start_bulk_receiving(dev->parser, 0, &start); 731 usbredirparser_do_write(dev->parser); 732 DPRINTF("bulk receiving started bytes/transfer %u count %d ep %02X\n", 733 start.bytes_per_transfer, start.no_transfers, ep); 734 dev->endpoint[EP2I(ep)].bulk_receiving_started = 1; 735 /* We don't really want to drop bulk packets ever, but 736 having some upper limit to how much we buffer is good. */ 737 dev->endpoint[EP2I(ep)].bufpq_target_size = 5000; 738 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 739 } 740 741 if (QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq)) { 742 DPRINTF("bulk-token-in ep %02X, no bulkp\n", ep); 743 assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); 744 dev->endpoint[EP2I(ep)].pending_async_packet = p; 745 p->status = USB_RET_ASYNC; 746 return; 747 } 748 usbredir_buffered_bulk_in_complete(dev, p, ep); 749 } 750 751 static void usbredir_stop_bulk_receiving(USBRedirDevice *dev, uint8_t ep) 752 { 753 struct usb_redir_stop_bulk_receiving_header stop_bulk = { 754 .endpoint = ep, 755 .stream_id = 0, 756 }; 757 if (dev->endpoint[EP2I(ep)].bulk_receiving_started) { 758 usbredirparser_send_stop_bulk_receiving(dev->parser, 0, &stop_bulk); 759 DPRINTF("bulk receiving stopped ep %02X\n", ep); 760 dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; 761 } 762 usbredir_free_bufpq(dev, ep); 763 } 764 765 static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, 766 uint8_t ep) 767 { 768 struct usb_redir_bulk_packet_header bulk_packet; 769 size_t size = usb_packet_size(p); 770 const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; 771 772 if (usbredir_already_in_flight(dev, p->id)) { 773 p->status = USB_RET_ASYNC; 774 return; 775 } 776 777 if (dev->endpoint[EP2I(ep)].bulk_receiving_enabled) { 778 if (size != 0 && (size % maxp) == 0) { 779 usbredir_handle_buffered_bulk_in_data(dev, p, ep); 780 return; 781 } 782 WARNING("bulk recv invalid size %zd ep %02x, disabling\n", size, ep); 783 assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); 784 usbredir_stop_bulk_receiving(dev, ep); 785 dev->endpoint[EP2I(ep)].bulk_receiving_enabled = 0; 786 } 787 788 DPRINTF("bulk-out ep %02X stream %u len %zd id %"PRIu64"\n", 789 ep, p->stream, size, p->id); 790 791 bulk_packet.endpoint = ep; 792 bulk_packet.length = size; 793 bulk_packet.stream_id = p->stream; 794 bulk_packet.length_high = size >> 16; 795 assert(bulk_packet.length_high == 0 || 796 usbredirparser_peer_has_cap(dev->parser, 797 usb_redir_cap_32bits_bulk_length)); 798 799 if (ep & USB_DIR_IN || size == 0) { 800 usbredirparser_send_bulk_packet(dev->parser, p->id, 801 &bulk_packet, NULL, 0); 802 } else { 803 uint8_t buf[size]; 804 usb_packet_copy(p, buf, size); 805 usbredir_log_data(dev, "bulk data out:", buf, size); 806 usbredirparser_send_bulk_packet(dev->parser, p->id, 807 &bulk_packet, buf, size); 808 } 809 usbredirparser_do_write(dev->parser); 810 p->status = USB_RET_ASYNC; 811 } 812 813 static void usbredir_handle_interrupt_in_data(USBRedirDevice *dev, 814 USBPacket *p, uint8_t ep) 815 { 816 /* Input interrupt endpoint, buffered packet input */ 817 struct buf_packet *intp; 818 int status, len; 819 820 if (!dev->endpoint[EP2I(ep)].interrupt_started && 821 !dev->endpoint[EP2I(ep)].interrupt_error) { 822 struct usb_redir_start_interrupt_receiving_header start_int = { 823 .endpoint = ep, 824 }; 825 /* No id, we look at the ep when receiving a status back */ 826 usbredirparser_send_start_interrupt_receiving(dev->parser, 0, 827 &start_int); 828 usbredirparser_do_write(dev->parser); 829 DPRINTF("interrupt recv started ep %02X\n", ep); 830 dev->endpoint[EP2I(ep)].interrupt_started = 1; 831 /* We don't really want to drop interrupt packets ever, but 832 having some upper limit to how much we buffer is good. */ 833 dev->endpoint[EP2I(ep)].bufpq_target_size = 1000; 834 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 835 } 836 837 intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); 838 if (intp == NULL) { 839 DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep); 840 /* Check interrupt_error for stream errors */ 841 status = dev->endpoint[EP2I(ep)].interrupt_error; 842 dev->endpoint[EP2I(ep)].interrupt_error = 0; 843 if (status) { 844 usbredir_handle_status(dev, p, status); 845 } else { 846 p->status = USB_RET_NAK; 847 } 848 return; 849 } 850 DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep, 851 intp->status, intp->len); 852 853 status = intp->status; 854 len = intp->len; 855 if (len > p->iov.size) { 856 ERROR("received int data is larger then packet ep %02X\n", ep); 857 len = p->iov.size; 858 status = usb_redir_babble; 859 } 860 usb_packet_copy(p, intp->data, len); 861 bufp_free(dev, intp, ep); 862 usbredir_handle_status(dev, p, status); 863 } 864 865 /* 866 * Handle interrupt out data, the usbredir protocol expects us to do this 867 * async, so that it can report back a completion status. But guests will 868 * expect immediate completion for an interrupt endpoint, and handling this 869 * async causes migration issues. So we report success directly, counting 870 * on the fact that output interrupt packets normally always succeed. 871 */ 872 static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, 873 USBPacket *p, uint8_t ep) 874 { 875 struct usb_redir_interrupt_packet_header interrupt_packet; 876 uint8_t buf[p->iov.size]; 877 878 DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, 879 p->iov.size, p->id); 880 881 interrupt_packet.endpoint = ep; 882 interrupt_packet.length = p->iov.size; 883 884 usb_packet_copy(p, buf, p->iov.size); 885 usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size); 886 usbredirparser_send_interrupt_packet(dev->parser, p->id, 887 &interrupt_packet, buf, p->iov.size); 888 usbredirparser_do_write(dev->parser); 889 } 890 891 static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, 892 uint8_t ep) 893 { 894 struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = { 895 .endpoint = ep 896 }; 897 if (dev->endpoint[EP2I(ep)].interrupt_started) { 898 usbredirparser_send_stop_interrupt_receiving(dev->parser, 0, 899 &stop_interrupt_recv); 900 DPRINTF("interrupt recv stopped ep %02X\n", ep); 901 dev->endpoint[EP2I(ep)].interrupt_started = 0; 902 } 903 dev->endpoint[EP2I(ep)].interrupt_error = 0; 904 usbredir_free_bufpq(dev, ep); 905 } 906 907 static void usbredir_handle_data(USBDevice *udev, USBPacket *p) 908 { 909 USBRedirDevice *dev = USB_REDIRECT(udev); 910 uint8_t ep; 911 912 ep = p->ep->nr; 913 if (p->pid == USB_TOKEN_IN) { 914 ep |= USB_DIR_IN; 915 } 916 917 switch (dev->endpoint[EP2I(ep)].type) { 918 case USB_ENDPOINT_XFER_CONTROL: 919 ERROR("handle_data called for control transfer on ep %02X\n", ep); 920 p->status = USB_RET_NAK; 921 break; 922 case USB_ENDPOINT_XFER_BULK: 923 if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN && 924 p->ep->pipeline) { 925 p->status = USB_RET_ADD_TO_QUEUE; 926 break; 927 } 928 usbredir_handle_bulk_data(dev, p, ep); 929 break; 930 case USB_ENDPOINT_XFER_ISOC: 931 usbredir_handle_iso_data(dev, p, ep); 932 break; 933 case USB_ENDPOINT_XFER_INT: 934 if (ep & USB_DIR_IN) { 935 usbredir_handle_interrupt_in_data(dev, p, ep); 936 } else { 937 usbredir_handle_interrupt_out_data(dev, p, ep); 938 } 939 break; 940 default: 941 ERROR("handle_data ep %02X has unknown type %d\n", ep, 942 dev->endpoint[EP2I(ep)].type); 943 p->status = USB_RET_NAK; 944 } 945 } 946 947 static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) 948 { 949 if (ep->pid == USB_TOKEN_IN && ep->pipeline) { 950 usb_ep_combine_input_packets(ep); 951 } 952 } 953 954 static void usbredir_stop_ep(USBRedirDevice *dev, int i) 955 { 956 uint8_t ep = I2EP(i); 957 958 switch (dev->endpoint[i].type) { 959 case USB_ENDPOINT_XFER_BULK: 960 if (ep & USB_DIR_IN) { 961 usbredir_stop_bulk_receiving(dev, ep); 962 } 963 break; 964 case USB_ENDPOINT_XFER_ISOC: 965 usbredir_stop_iso_stream(dev, ep); 966 break; 967 case USB_ENDPOINT_XFER_INT: 968 if (ep & USB_DIR_IN) { 969 usbredir_stop_interrupt_receiving(dev, ep); 970 } 971 break; 972 } 973 usbredir_free_bufpq(dev, ep); 974 } 975 976 static void usbredir_ep_stopped(USBDevice *udev, USBEndpoint *uep) 977 { 978 USBRedirDevice *dev = USB_REDIRECT(udev); 979 980 usbredir_stop_ep(dev, USBEP2I(uep)); 981 usbredirparser_do_write(dev->parser); 982 } 983 984 static void usbredir_set_config(USBRedirDevice *dev, USBPacket *p, 985 int config) 986 { 987 struct usb_redir_set_configuration_header set_config; 988 int i; 989 990 DPRINTF("set config %d id %"PRIu64"\n", config, p->id); 991 992 for (i = 0; i < MAX_ENDPOINTS; i++) { 993 usbredir_stop_ep(dev, i); 994 } 995 996 set_config.configuration = config; 997 usbredirparser_send_set_configuration(dev->parser, p->id, &set_config); 998 usbredirparser_do_write(dev->parser); 999 p->status = USB_RET_ASYNC; 1000 } 1001 1002 static void usbredir_get_config(USBRedirDevice *dev, USBPacket *p) 1003 { 1004 DPRINTF("get config id %"PRIu64"\n", p->id); 1005 1006 usbredirparser_send_get_configuration(dev->parser, p->id); 1007 usbredirparser_do_write(dev->parser); 1008 p->status = USB_RET_ASYNC; 1009 } 1010 1011 static void usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, 1012 int interface, int alt) 1013 { 1014 struct usb_redir_set_alt_setting_header set_alt; 1015 int i; 1016 1017 DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id); 1018 1019 for (i = 0; i < MAX_ENDPOINTS; i++) { 1020 if (dev->endpoint[i].interface == interface) { 1021 usbredir_stop_ep(dev, i); 1022 } 1023 } 1024 1025 set_alt.interface = interface; 1026 set_alt.alt = alt; 1027 usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt); 1028 usbredirparser_do_write(dev->parser); 1029 p->status = USB_RET_ASYNC; 1030 } 1031 1032 static void usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, 1033 int interface) 1034 { 1035 struct usb_redir_get_alt_setting_header get_alt; 1036 1037 DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id); 1038 1039 get_alt.interface = interface; 1040 usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt); 1041 usbredirparser_do_write(dev->parser); 1042 p->status = USB_RET_ASYNC; 1043 } 1044 1045 static void usbredir_handle_control(USBDevice *udev, USBPacket *p, 1046 int request, int value, int index, int length, uint8_t *data) 1047 { 1048 USBRedirDevice *dev = USB_REDIRECT(udev); 1049 struct usb_redir_control_packet_header control_packet; 1050 1051 if (usbredir_already_in_flight(dev, p->id)) { 1052 p->status = USB_RET_ASYNC; 1053 return; 1054 } 1055 1056 /* Special cases for certain standard device requests */ 1057 switch (request) { 1058 case DeviceOutRequest | USB_REQ_SET_ADDRESS: 1059 DPRINTF("set address %d\n", value); 1060 dev->dev.addr = value; 1061 return; 1062 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: 1063 usbredir_set_config(dev, p, value & 0xff); 1064 return; 1065 case DeviceRequest | USB_REQ_GET_CONFIGURATION: 1066 usbredir_get_config(dev, p); 1067 return; 1068 case InterfaceOutRequest | USB_REQ_SET_INTERFACE: 1069 usbredir_set_interface(dev, p, index, value); 1070 return; 1071 case InterfaceRequest | USB_REQ_GET_INTERFACE: 1072 usbredir_get_interface(dev, p, index); 1073 return; 1074 } 1075 1076 /* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */ 1077 DPRINTF( 1078 "ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n", 1079 request >> 8, request & 0xff, value, index, length, p->id); 1080 1081 control_packet.request = request & 0xFF; 1082 control_packet.requesttype = request >> 8; 1083 control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; 1084 control_packet.value = value; 1085 control_packet.index = index; 1086 control_packet.length = length; 1087 1088 if (control_packet.requesttype & USB_DIR_IN) { 1089 usbredirparser_send_control_packet(dev->parser, p->id, 1090 &control_packet, NULL, 0); 1091 } else { 1092 usbredir_log_data(dev, "ctrl data out:", data, length); 1093 usbredirparser_send_control_packet(dev->parser, p->id, 1094 &control_packet, data, length); 1095 } 1096 usbredirparser_do_write(dev->parser); 1097 p->status = USB_RET_ASYNC; 1098 } 1099 1100 static int usbredir_alloc_streams(USBDevice *udev, USBEndpoint **eps, 1101 int nr_eps, int streams) 1102 { 1103 USBRedirDevice *dev = USB_REDIRECT(udev); 1104 #if USBREDIR_VERSION >= 0x000700 1105 struct usb_redir_alloc_bulk_streams_header alloc_streams; 1106 int i; 1107 1108 if (!usbredirparser_peer_has_cap(dev->parser, 1109 usb_redir_cap_bulk_streams)) { 1110 ERROR("peer does not support streams\n"); 1111 goto reject; 1112 } 1113 1114 if (streams == 0) { 1115 ERROR("request to allocate 0 streams\n"); 1116 return -1; 1117 } 1118 1119 alloc_streams.no_streams = streams; 1120 alloc_streams.endpoints = 0; 1121 for (i = 0; i < nr_eps; i++) { 1122 alloc_streams.endpoints |= 1 << USBEP2I(eps[i]); 1123 } 1124 usbredirparser_send_alloc_bulk_streams(dev->parser, 0, &alloc_streams); 1125 usbredirparser_do_write(dev->parser); 1126 1127 return 0; 1128 #else 1129 ERROR("usbredir_alloc_streams not implemented\n"); 1130 goto reject; 1131 #endif 1132 reject: 1133 ERROR("streams are not available, disconnecting\n"); 1134 qemu_bh_schedule(dev->device_reject_bh); 1135 return -1; 1136 } 1137 1138 static void usbredir_free_streams(USBDevice *udev, USBEndpoint **eps, 1139 int nr_eps) 1140 { 1141 #if USBREDIR_VERSION >= 0x000700 1142 USBRedirDevice *dev = USB_REDIRECT(udev); 1143 struct usb_redir_free_bulk_streams_header free_streams; 1144 int i; 1145 1146 if (!usbredirparser_peer_has_cap(dev->parser, 1147 usb_redir_cap_bulk_streams)) { 1148 return; 1149 } 1150 1151 free_streams.endpoints = 0; 1152 for (i = 0; i < nr_eps; i++) { 1153 free_streams.endpoints |= 1 << USBEP2I(eps[i]); 1154 } 1155 usbredirparser_send_free_bulk_streams(dev->parser, 0, &free_streams); 1156 usbredirparser_do_write(dev->parser); 1157 #endif 1158 } 1159 1160 /* 1161 * Close events can be triggered by usbredirparser_do_write which gets called 1162 * from within the USBDevice data / control packet callbacks and doing a 1163 * usb_detach from within these callbacks is not a good idea. 1164 * 1165 * So we use a bh handler to take care of close events. 1166 */ 1167 static void usbredir_chardev_close_bh(void *opaque) 1168 { 1169 USBRedirDevice *dev = opaque; 1170 1171 qemu_bh_cancel(dev->device_reject_bh); 1172 usbredir_device_disconnect(dev); 1173 1174 if (dev->parser) { 1175 DPRINTF("destroying usbredirparser\n"); 1176 usbredirparser_destroy(dev->parser); 1177 dev->parser = NULL; 1178 } 1179 if (dev->watch) { 1180 g_source_remove(dev->watch); 1181 dev->watch = 0; 1182 } 1183 } 1184 1185 static void usbredir_create_parser(USBRedirDevice *dev) 1186 { 1187 uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, }; 1188 int flags = 0; 1189 1190 DPRINTF("creating usbredirparser\n"); 1191 1192 dev->parser = qemu_oom_check(usbredirparser_create()); 1193 dev->parser->priv = dev; 1194 dev->parser->log_func = usbredir_log; 1195 dev->parser->read_func = usbredir_read; 1196 dev->parser->write_func = usbredir_write; 1197 dev->parser->hello_func = usbredir_hello; 1198 dev->parser->device_connect_func = usbredir_device_connect; 1199 dev->parser->device_disconnect_func = usbredir_device_disconnect; 1200 dev->parser->interface_info_func = usbredir_interface_info; 1201 dev->parser->ep_info_func = usbredir_ep_info; 1202 dev->parser->configuration_status_func = usbredir_configuration_status; 1203 dev->parser->alt_setting_status_func = usbredir_alt_setting_status; 1204 dev->parser->iso_stream_status_func = usbredir_iso_stream_status; 1205 dev->parser->interrupt_receiving_status_func = 1206 usbredir_interrupt_receiving_status; 1207 dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; 1208 dev->parser->bulk_receiving_status_func = usbredir_bulk_receiving_status; 1209 dev->parser->control_packet_func = usbredir_control_packet; 1210 dev->parser->bulk_packet_func = usbredir_bulk_packet; 1211 dev->parser->iso_packet_func = usbredir_iso_packet; 1212 dev->parser->interrupt_packet_func = usbredir_interrupt_packet; 1213 dev->parser->buffered_bulk_packet_func = usbredir_buffered_bulk_packet; 1214 dev->read_buf = NULL; 1215 dev->read_buf_size = 0; 1216 1217 usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); 1218 usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); 1219 usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size); 1220 usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids); 1221 usbredirparser_caps_set_cap(caps, usb_redir_cap_32bits_bulk_length); 1222 usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_receiving); 1223 #if USBREDIR_VERSION >= 0x000700 1224 if (dev->enable_streams) { 1225 usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_streams); 1226 } 1227 #endif 1228 1229 if (runstate_check(RUN_STATE_INMIGRATE)) { 1230 flags |= usbredirparser_fl_no_hello; 1231 } 1232 usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, 1233 flags); 1234 usbredirparser_do_write(dev->parser); 1235 } 1236 1237 static void usbredir_reject_device(USBRedirDevice *dev) 1238 { 1239 usbredir_device_disconnect(dev); 1240 if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { 1241 usbredirparser_send_filter_reject(dev->parser); 1242 usbredirparser_do_write(dev->parser); 1243 } 1244 } 1245 1246 /* 1247 * We may need to reject the device when the hcd calls alloc_streams, doing 1248 * an usb_detach from within a hcd call is not a good idea, hence this bh. 1249 */ 1250 static void usbredir_device_reject_bh(void *opaque) 1251 { 1252 USBRedirDevice *dev = opaque; 1253 1254 usbredir_reject_device(dev); 1255 } 1256 1257 static void usbredir_do_attach(void *opaque) 1258 { 1259 USBRedirDevice *dev = opaque; 1260 Error *local_err = NULL; 1261 1262 /* In order to work properly with XHCI controllers we need these caps */ 1263 if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !( 1264 usbredirparser_peer_has_cap(dev->parser, 1265 usb_redir_cap_ep_info_max_packet_size) && 1266 usbredirparser_peer_has_cap(dev->parser, 1267 usb_redir_cap_32bits_bulk_length) && 1268 usbredirparser_peer_has_cap(dev->parser, 1269 usb_redir_cap_64bits_ids))) { 1270 ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n"); 1271 usbredir_reject_device(dev); 1272 return; 1273 } 1274 1275 usb_device_attach(&dev->dev, &local_err); 1276 if (local_err) { 1277 error_report_err(local_err); 1278 WARNING("rejecting device due to speed mismatch\n"); 1279 usbredir_reject_device(dev); 1280 } 1281 } 1282 1283 /* 1284 * chardev callbacks 1285 */ 1286 1287 static int usbredir_chardev_can_read(void *opaque) 1288 { 1289 USBRedirDevice *dev = opaque; 1290 1291 if (!dev->parser) { 1292 WARNING("chardev_can_read called on non open chardev!\n"); 1293 return 0; 1294 } 1295 1296 /* Don't read new data from the chardev until our state is fully synced */ 1297 if (!runstate_check(RUN_STATE_RUNNING)) { 1298 return 0; 1299 } 1300 1301 /* usbredir_parser_do_read will consume *all* data we give it */ 1302 return 1 * MiB; 1303 } 1304 1305 static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) 1306 { 1307 USBRedirDevice *dev = opaque; 1308 1309 /* No recursion allowed! */ 1310 assert(dev->read_buf == NULL); 1311 1312 dev->read_buf = buf; 1313 dev->read_buf_size = size; 1314 1315 usbredirparser_do_read(dev->parser); 1316 /* Send any acks, etc. which may be queued now */ 1317 usbredirparser_do_write(dev->parser); 1318 } 1319 1320 static void usbredir_chardev_event(void *opaque, int event) 1321 { 1322 USBRedirDevice *dev = opaque; 1323 1324 switch (event) { 1325 case CHR_EVENT_OPENED: 1326 DPRINTF("chardev open\n"); 1327 /* Make sure any pending closes are handled (no-op if none pending) */ 1328 usbredir_chardev_close_bh(dev); 1329 qemu_bh_cancel(dev->chardev_close_bh); 1330 usbredir_create_parser(dev); 1331 break; 1332 case CHR_EVENT_CLOSED: 1333 DPRINTF("chardev close\n"); 1334 qemu_bh_schedule(dev->chardev_close_bh); 1335 break; 1336 } 1337 } 1338 1339 /* 1340 * init + destroy 1341 */ 1342 1343 static void usbredir_vm_state_change(void *priv, int running, RunState state) 1344 { 1345 USBRedirDevice *dev = priv; 1346 1347 if (state == RUN_STATE_RUNNING && dev->parser != NULL) { 1348 usbredirparser_do_write(dev->parser); /* Flush any pending writes */ 1349 } 1350 } 1351 1352 static void usbredir_init_endpoints(USBRedirDevice *dev) 1353 { 1354 int i; 1355 1356 usb_ep_init(&dev->dev); 1357 memset(dev->endpoint, 0, sizeof(dev->endpoint)); 1358 for (i = 0; i < MAX_ENDPOINTS; i++) { 1359 dev->endpoint[i].dev = dev; 1360 QTAILQ_INIT(&dev->endpoint[i].bufpq); 1361 } 1362 } 1363 1364 static void usbredir_realize(USBDevice *udev, Error **errp) 1365 { 1366 USBRedirDevice *dev = USB_REDIRECT(udev); 1367 int i; 1368 1369 if (!qemu_chr_fe_backend_connected(&dev->cs)) { 1370 error_setg(errp, QERR_MISSING_PARAMETER, "chardev"); 1371 return; 1372 } 1373 1374 if (dev->filter_str) { 1375 i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", 1376 &dev->filter_rules, 1377 &dev->filter_rules_count); 1378 if (i) { 1379 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "filter", 1380 "a usb device filter string"); 1381 return; 1382 } 1383 } 1384 1385 dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev); 1386 dev->device_reject_bh = qemu_bh_new(usbredir_device_reject_bh, dev); 1387 dev->attach_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, usbredir_do_attach, dev); 1388 1389 packet_id_queue_init(&dev->cancelled, dev, "cancelled"); 1390 packet_id_queue_init(&dev->already_in_flight, dev, "already-in-flight"); 1391 usbredir_init_endpoints(dev); 1392 1393 /* We'll do the attach once we receive the speed from the usb-host */ 1394 udev->auto_attach = 0; 1395 1396 /* Will be cleared during setup when we find conflicts */ 1397 dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; 1398 1399 /* Let the backend know we are ready */ 1400 qemu_chr_fe_set_handlers(&dev->cs, usbredir_chardev_can_read, 1401 usbredir_chardev_read, usbredir_chardev_event, 1402 NULL, dev, NULL, true); 1403 1404 dev->vmstate = 1405 qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); 1406 } 1407 1408 static void usbredir_cleanup_device_queues(USBRedirDevice *dev) 1409 { 1410 int i; 1411 1412 packet_id_queue_empty(&dev->cancelled); 1413 packet_id_queue_empty(&dev->already_in_flight); 1414 for (i = 0; i < MAX_ENDPOINTS; i++) { 1415 usbredir_free_bufpq(dev, I2EP(i)); 1416 } 1417 } 1418 1419 static void usbredir_unrealize(USBDevice *udev, Error **errp) 1420 { 1421 USBRedirDevice *dev = USB_REDIRECT(udev); 1422 1423 qemu_chr_fe_deinit(&dev->cs, true); 1424 1425 /* Note must be done after qemu_chr_close, as that causes a close event */ 1426 qemu_bh_delete(dev->chardev_close_bh); 1427 qemu_bh_delete(dev->device_reject_bh); 1428 1429 timer_del(dev->attach_timer); 1430 timer_free(dev->attach_timer); 1431 1432 usbredir_cleanup_device_queues(dev); 1433 1434 if (dev->parser) { 1435 usbredirparser_destroy(dev->parser); 1436 } 1437 if (dev->watch) { 1438 g_source_remove(dev->watch); 1439 } 1440 1441 free(dev->filter_rules); 1442 qemu_del_vm_change_state_handler(dev->vmstate); 1443 } 1444 1445 static int usbredir_check_filter(USBRedirDevice *dev) 1446 { 1447 if (dev->interface_info.interface_count == NO_INTERFACE_INFO) { 1448 ERROR("No interface info for device\n"); 1449 goto error; 1450 } 1451 1452 if (dev->filter_rules) { 1453 if (!usbredirparser_peer_has_cap(dev->parser, 1454 usb_redir_cap_connect_device_version)) { 1455 ERROR("Device filter specified and peer does not have the " 1456 "connect_device_version capability\n"); 1457 goto error; 1458 } 1459 1460 if (usbredirfilter_check( 1461 dev->filter_rules, 1462 dev->filter_rules_count, 1463 dev->device_info.device_class, 1464 dev->device_info.device_subclass, 1465 dev->device_info.device_protocol, 1466 dev->interface_info.interface_class, 1467 dev->interface_info.interface_subclass, 1468 dev->interface_info.interface_protocol, 1469 dev->interface_info.interface_count, 1470 dev->device_info.vendor_id, 1471 dev->device_info.product_id, 1472 dev->device_info.device_version_bcd, 1473 0) != 0) { 1474 goto error; 1475 } 1476 } 1477 1478 return 0; 1479 1480 error: 1481 usbredir_reject_device(dev); 1482 return -1; 1483 } 1484 1485 static void usbredir_check_bulk_receiving(USBRedirDevice *dev) 1486 { 1487 int i, j, quirks; 1488 1489 if (!usbredirparser_peer_has_cap(dev->parser, 1490 usb_redir_cap_bulk_receiving)) { 1491 return; 1492 } 1493 1494 for (i = EP2I(USB_DIR_IN); i < MAX_ENDPOINTS; i++) { 1495 dev->endpoint[i].bulk_receiving_enabled = 0; 1496 } 1497 for (i = 0; i < dev->interface_info.interface_count; i++) { 1498 quirks = usb_get_quirks(dev->device_info.vendor_id, 1499 dev->device_info.product_id, 1500 dev->interface_info.interface_class[i], 1501 dev->interface_info.interface_subclass[i], 1502 dev->interface_info.interface_protocol[i]); 1503 if (!(quirks & USB_QUIRK_BUFFER_BULK_IN)) { 1504 continue; 1505 } 1506 if (quirks & USB_QUIRK_IS_FTDI) { 1507 dev->buffered_bulk_in_complete = 1508 usbredir_buffered_bulk_in_complete_ftdi; 1509 } else { 1510 dev->buffered_bulk_in_complete = 1511 usbredir_buffered_bulk_in_complete_raw; 1512 } 1513 1514 for (j = EP2I(USB_DIR_IN); j < MAX_ENDPOINTS; j++) { 1515 if (dev->endpoint[j].interface == 1516 dev->interface_info.interface[i] && 1517 dev->endpoint[j].type == USB_ENDPOINT_XFER_BULK && 1518 dev->endpoint[j].max_packet_size != 0) { 1519 dev->endpoint[j].bulk_receiving_enabled = 1; 1520 /* 1521 * With buffering pipelining is not necessary. Also packet 1522 * combining and bulk in buffering don't play nice together! 1523 */ 1524 I2USBEP(dev, j)->pipeline = false; 1525 break; /* Only buffer for the first ep of each intf */ 1526 } 1527 } 1528 } 1529 } 1530 1531 /* 1532 * usbredirparser packet complete callbacks 1533 */ 1534 1535 static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, 1536 int status) 1537 { 1538 switch (status) { 1539 case usb_redir_success: 1540 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 1541 break; 1542 case usb_redir_stall: 1543 p->status = USB_RET_STALL; 1544 break; 1545 case usb_redir_cancelled: 1546 /* 1547 * When the usbredir-host unredirects a device, it will report a status 1548 * of cancelled for all pending packets, followed by a disconnect msg. 1549 */ 1550 p->status = USB_RET_IOERROR; 1551 break; 1552 case usb_redir_inval: 1553 WARNING("got invalid param error from usb-host?\n"); 1554 p->status = USB_RET_IOERROR; 1555 break; 1556 case usb_redir_babble: 1557 p->status = USB_RET_BABBLE; 1558 break; 1559 case usb_redir_ioerror: 1560 case usb_redir_timeout: 1561 default: 1562 p->status = USB_RET_IOERROR; 1563 } 1564 } 1565 1566 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h) 1567 { 1568 USBRedirDevice *dev = priv; 1569 1570 /* Try to send the filter info now that we've the usb-host's caps */ 1571 if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter) && 1572 dev->filter_rules) { 1573 usbredirparser_send_filter_filter(dev->parser, dev->filter_rules, 1574 dev->filter_rules_count); 1575 usbredirparser_do_write(dev->parser); 1576 } 1577 } 1578 1579 static void usbredir_device_connect(void *priv, 1580 struct usb_redir_device_connect_header *device_connect) 1581 { 1582 USBRedirDevice *dev = priv; 1583 const char *speed; 1584 1585 if (timer_pending(dev->attach_timer) || dev->dev.attached) { 1586 ERROR("Received device connect while already connected\n"); 1587 return; 1588 } 1589 1590 switch (device_connect->speed) { 1591 case usb_redir_speed_low: 1592 speed = "low speed"; 1593 dev->dev.speed = USB_SPEED_LOW; 1594 dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL; 1595 dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; 1596 break; 1597 case usb_redir_speed_full: 1598 speed = "full speed"; 1599 dev->dev.speed = USB_SPEED_FULL; 1600 dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; 1601 break; 1602 case usb_redir_speed_high: 1603 speed = "high speed"; 1604 dev->dev.speed = USB_SPEED_HIGH; 1605 break; 1606 case usb_redir_speed_super: 1607 speed = "super speed"; 1608 dev->dev.speed = USB_SPEED_SUPER; 1609 break; 1610 default: 1611 speed = "unknown speed"; 1612 dev->dev.speed = USB_SPEED_FULL; 1613 } 1614 1615 if (usbredirparser_peer_has_cap(dev->parser, 1616 usb_redir_cap_connect_device_version)) { 1617 INFO("attaching %s device %04x:%04x version %d.%d class %02x\n", 1618 speed, device_connect->vendor_id, device_connect->product_id, 1619 ((device_connect->device_version_bcd & 0xf000) >> 12) * 10 + 1620 ((device_connect->device_version_bcd & 0x0f00) >> 8), 1621 ((device_connect->device_version_bcd & 0x00f0) >> 4) * 10 + 1622 ((device_connect->device_version_bcd & 0x000f) >> 0), 1623 device_connect->device_class); 1624 } else { 1625 INFO("attaching %s device %04x:%04x class %02x\n", speed, 1626 device_connect->vendor_id, device_connect->product_id, 1627 device_connect->device_class); 1628 } 1629 1630 dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; 1631 dev->device_info = *device_connect; 1632 1633 if (usbredir_check_filter(dev)) { 1634 WARNING("Device %04x:%04x rejected by device filter, not attaching\n", 1635 device_connect->vendor_id, device_connect->product_id); 1636 return; 1637 } 1638 1639 usbredir_check_bulk_receiving(dev); 1640 timer_mod(dev->attach_timer, dev->next_attach_time); 1641 } 1642 1643 static void usbredir_device_disconnect(void *priv) 1644 { 1645 USBRedirDevice *dev = priv; 1646 1647 /* Stop any pending attaches */ 1648 timer_del(dev->attach_timer); 1649 1650 if (dev->dev.attached) { 1651 DPRINTF("detaching device\n"); 1652 usb_device_detach(&dev->dev); 1653 /* 1654 * Delay next usb device attach to give the guest a chance to see 1655 * see the detach / attach in case of quick close / open succession 1656 */ 1657 dev->next_attach_time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 200; 1658 } 1659 1660 /* Reset state so that the next dev connected starts with a clean slate */ 1661 usbredir_cleanup_device_queues(dev); 1662 usbredir_init_endpoints(dev); 1663 dev->interface_info.interface_count = NO_INTERFACE_INFO; 1664 dev->dev.addr = 0; 1665 dev->dev.speed = 0; 1666 dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; 1667 } 1668 1669 static void usbredir_interface_info(void *priv, 1670 struct usb_redir_interface_info_header *interface_info) 1671 { 1672 USBRedirDevice *dev = priv; 1673 1674 dev->interface_info = *interface_info; 1675 1676 /* 1677 * If we receive interface info after the device has already been 1678 * connected (ie on a set_config), re-check interface dependent things. 1679 */ 1680 if (timer_pending(dev->attach_timer) || dev->dev.attached) { 1681 usbredir_check_bulk_receiving(dev); 1682 if (usbredir_check_filter(dev)) { 1683 ERROR("Device no longer matches filter after interface info " 1684 "change, disconnecting!\n"); 1685 } 1686 } 1687 } 1688 1689 static void usbredir_mark_speed_incompatible(USBRedirDevice *dev, int speed) 1690 { 1691 dev->compatible_speedmask &= ~(1 << speed); 1692 dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; 1693 } 1694 1695 static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep) 1696 { 1697 if (uep->type != USB_ENDPOINT_XFER_BULK) { 1698 return; 1699 } 1700 if (uep->pid == USB_TOKEN_OUT) { 1701 uep->pipeline = true; 1702 } 1703 if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 && 1704 usbredirparser_peer_has_cap(dev->parser, 1705 usb_redir_cap_32bits_bulk_length)) { 1706 uep->pipeline = true; 1707 } 1708 } 1709 1710 static void usbredir_setup_usb_eps(USBRedirDevice *dev) 1711 { 1712 struct USBEndpoint *usb_ep; 1713 int i; 1714 1715 for (i = 0; i < MAX_ENDPOINTS; i++) { 1716 usb_ep = I2USBEP(dev, i); 1717 usb_ep->type = dev->endpoint[i].type; 1718 usb_ep->ifnum = dev->endpoint[i].interface; 1719 usb_ep->max_packet_size = dev->endpoint[i].max_packet_size; 1720 usb_ep->max_streams = dev->endpoint[i].max_streams; 1721 usbredir_set_pipeline(dev, usb_ep); 1722 } 1723 } 1724 1725 static void usbredir_ep_info(void *priv, 1726 struct usb_redir_ep_info_header *ep_info) 1727 { 1728 USBRedirDevice *dev = priv; 1729 int i; 1730 1731 for (i = 0; i < MAX_ENDPOINTS; i++) { 1732 dev->endpoint[i].type = ep_info->type[i]; 1733 dev->endpoint[i].interval = ep_info->interval[i]; 1734 dev->endpoint[i].interface = ep_info->interface[i]; 1735 if (usbredirparser_peer_has_cap(dev->parser, 1736 usb_redir_cap_ep_info_max_packet_size)) { 1737 dev->endpoint[i].max_packet_size = ep_info->max_packet_size[i]; 1738 } 1739 #if USBREDIR_VERSION >= 0x000700 1740 if (usbredirparser_peer_has_cap(dev->parser, 1741 usb_redir_cap_bulk_streams)) { 1742 dev->endpoint[i].max_streams = ep_info->max_streams[i]; 1743 } 1744 #endif 1745 switch (dev->endpoint[i].type) { 1746 case usb_redir_type_invalid: 1747 break; 1748 case usb_redir_type_iso: 1749 usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); 1750 usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); 1751 /* Fall through */ 1752 case usb_redir_type_interrupt: 1753 if (!usbredirparser_peer_has_cap(dev->parser, 1754 usb_redir_cap_ep_info_max_packet_size) || 1755 ep_info->max_packet_size[i] > 64) { 1756 usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); 1757 } 1758 if (!usbredirparser_peer_has_cap(dev->parser, 1759 usb_redir_cap_ep_info_max_packet_size) || 1760 ep_info->max_packet_size[i] > 1024) { 1761 usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); 1762 } 1763 if (dev->endpoint[i].interval == 0) { 1764 ERROR("Received 0 interval for isoc or irq endpoint\n"); 1765 usbredir_reject_device(dev); 1766 return; 1767 } 1768 /* Fall through */ 1769 case usb_redir_type_control: 1770 case usb_redir_type_bulk: 1771 DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i), 1772 dev->endpoint[i].type, dev->endpoint[i].interface); 1773 break; 1774 default: 1775 ERROR("Received invalid endpoint type\n"); 1776 usbredir_reject_device(dev); 1777 return; 1778 } 1779 } 1780 /* The new ep info may have caused a speed incompatibility, recheck */ 1781 if (dev->dev.attached && 1782 !(dev->dev.port->speedmask & dev->dev.speedmask)) { 1783 ERROR("Device no longer matches speed after endpoint info change, " 1784 "disconnecting!\n"); 1785 usbredir_reject_device(dev); 1786 return; 1787 } 1788 usbredir_setup_usb_eps(dev); 1789 usbredir_check_bulk_receiving(dev); 1790 } 1791 1792 static void usbredir_configuration_status(void *priv, uint64_t id, 1793 struct usb_redir_configuration_status_header *config_status) 1794 { 1795 USBRedirDevice *dev = priv; 1796 USBPacket *p; 1797 1798 DPRINTF("set config status %d config %d id %"PRIu64"\n", 1799 config_status->status, config_status->configuration, id); 1800 1801 p = usbredir_find_packet_by_id(dev, 0, id); 1802 if (p) { 1803 if (dev->dev.setup_buf[0] & USB_DIR_IN) { 1804 dev->dev.data_buf[0] = config_status->configuration; 1805 p->actual_length = 1; 1806 } 1807 usbredir_handle_status(dev, p, config_status->status); 1808 usb_generic_async_ctrl_complete(&dev->dev, p); 1809 } 1810 } 1811 1812 static void usbredir_alt_setting_status(void *priv, uint64_t id, 1813 struct usb_redir_alt_setting_status_header *alt_setting_status) 1814 { 1815 USBRedirDevice *dev = priv; 1816 USBPacket *p; 1817 1818 DPRINTF("alt status %d intf %d alt %d id: %"PRIu64"\n", 1819 alt_setting_status->status, alt_setting_status->interface, 1820 alt_setting_status->alt, id); 1821 1822 p = usbredir_find_packet_by_id(dev, 0, id); 1823 if (p) { 1824 if (dev->dev.setup_buf[0] & USB_DIR_IN) { 1825 dev->dev.data_buf[0] = alt_setting_status->alt; 1826 p->actual_length = 1; 1827 } 1828 usbredir_handle_status(dev, p, alt_setting_status->status); 1829 usb_generic_async_ctrl_complete(&dev->dev, p); 1830 } 1831 } 1832 1833 static void usbredir_iso_stream_status(void *priv, uint64_t id, 1834 struct usb_redir_iso_stream_status_header *iso_stream_status) 1835 { 1836 USBRedirDevice *dev = priv; 1837 uint8_t ep = iso_stream_status->endpoint; 1838 1839 DPRINTF("iso status %d ep %02X id %"PRIu64"\n", iso_stream_status->status, 1840 ep, id); 1841 1842 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) { 1843 return; 1844 } 1845 1846 dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; 1847 if (iso_stream_status->status == usb_redir_stall) { 1848 DPRINTF("iso stream stopped by peer ep %02X\n", ep); 1849 dev->endpoint[EP2I(ep)].iso_started = 0; 1850 } 1851 } 1852 1853 static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, 1854 struct usb_redir_interrupt_receiving_status_header 1855 *interrupt_receiving_status) 1856 { 1857 USBRedirDevice *dev = priv; 1858 uint8_t ep = interrupt_receiving_status->endpoint; 1859 1860 DPRINTF("interrupt recv status %d ep %02X id %"PRIu64"\n", 1861 interrupt_receiving_status->status, ep, id); 1862 1863 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) { 1864 return; 1865 } 1866 1867 dev->endpoint[EP2I(ep)].interrupt_error = 1868 interrupt_receiving_status->status; 1869 if (interrupt_receiving_status->status == usb_redir_stall) { 1870 DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep); 1871 dev->endpoint[EP2I(ep)].interrupt_started = 0; 1872 } 1873 } 1874 1875 static void usbredir_bulk_streams_status(void *priv, uint64_t id, 1876 struct usb_redir_bulk_streams_status_header *bulk_streams_status) 1877 { 1878 #if USBREDIR_VERSION >= 0x000700 1879 USBRedirDevice *dev = priv; 1880 1881 if (bulk_streams_status->status == usb_redir_success) { 1882 DPRINTF("bulk streams status %d eps %08x\n", 1883 bulk_streams_status->status, bulk_streams_status->endpoints); 1884 } else { 1885 ERROR("bulk streams %s failed status %d eps %08x\n", 1886 (bulk_streams_status->no_streams == 0) ? "free" : "alloc", 1887 bulk_streams_status->status, bulk_streams_status->endpoints); 1888 ERROR("usb-redir-host does not provide streams, disconnecting\n"); 1889 usbredir_reject_device(dev); 1890 } 1891 #endif 1892 } 1893 1894 static void usbredir_bulk_receiving_status(void *priv, uint64_t id, 1895 struct usb_redir_bulk_receiving_status_header *bulk_receiving_status) 1896 { 1897 USBRedirDevice *dev = priv; 1898 uint8_t ep = bulk_receiving_status->endpoint; 1899 1900 DPRINTF("bulk recv status %d ep %02X id %"PRIu64"\n", 1901 bulk_receiving_status->status, ep, id); 1902 1903 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].bulk_receiving_started) { 1904 return; 1905 } 1906 1907 if (bulk_receiving_status->status == usb_redir_stall) { 1908 DPRINTF("bulk receiving stopped by peer ep %02X\n", ep); 1909 dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; 1910 } 1911 } 1912 1913 static void usbredir_control_packet(void *priv, uint64_t id, 1914 struct usb_redir_control_packet_header *control_packet, 1915 uint8_t *data, int data_len) 1916 { 1917 USBRedirDevice *dev = priv; 1918 USBPacket *p; 1919 int len = control_packet->length; 1920 1921 DPRINTF("ctrl-in status %d len %d id %"PRIu64"\n", control_packet->status, 1922 len, id); 1923 1924 /* Fix up USB-3 ep0 maxpacket size to allow superspeed connected devices 1925 * to work redirected to a not superspeed capable hcd */ 1926 if (dev->dev.speed == USB_SPEED_SUPER && 1927 !((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER)) && 1928 control_packet->requesttype == 0x80 && 1929 control_packet->request == 6 && 1930 control_packet->value == 0x100 && control_packet->index == 0 && 1931 data_len >= 18 && data[7] == 9) { 1932 data[7] = 64; 1933 } 1934 1935 p = usbredir_find_packet_by_id(dev, 0, id); 1936 if (p) { 1937 usbredir_handle_status(dev, p, control_packet->status); 1938 if (data_len > 0) { 1939 usbredir_log_data(dev, "ctrl data in:", data, data_len); 1940 if (data_len > sizeof(dev->dev.data_buf)) { 1941 ERROR("ctrl buffer too small (%d > %zu)\n", 1942 data_len, sizeof(dev->dev.data_buf)); 1943 p->status = USB_RET_STALL; 1944 data_len = len = sizeof(dev->dev.data_buf); 1945 } 1946 memcpy(dev->dev.data_buf, data, data_len); 1947 } 1948 p->actual_length = len; 1949 usb_generic_async_ctrl_complete(&dev->dev, p); 1950 } 1951 free(data); 1952 } 1953 1954 static void usbredir_bulk_packet(void *priv, uint64_t id, 1955 struct usb_redir_bulk_packet_header *bulk_packet, 1956 uint8_t *data, int data_len) 1957 { 1958 USBRedirDevice *dev = priv; 1959 uint8_t ep = bulk_packet->endpoint; 1960 int len = (bulk_packet->length_high << 16) | bulk_packet->length; 1961 USBPacket *p; 1962 1963 DPRINTF("bulk-in status %d ep %02X stream %u len %d id %"PRIu64"\n", 1964 bulk_packet->status, ep, bulk_packet->stream_id, len, id); 1965 1966 p = usbredir_find_packet_by_id(dev, ep, id); 1967 if (p) { 1968 size_t size = usb_packet_size(p); 1969 usbredir_handle_status(dev, p, bulk_packet->status); 1970 if (data_len > 0) { 1971 usbredir_log_data(dev, "bulk data in:", data, data_len); 1972 if (data_len > size) { 1973 ERROR("bulk got more data then requested (%d > %zd)\n", 1974 data_len, p->iov.size); 1975 p->status = USB_RET_BABBLE; 1976 data_len = len = size; 1977 } 1978 usb_packet_copy(p, data, data_len); 1979 } 1980 p->actual_length = len; 1981 if (p->pid == USB_TOKEN_IN && p->ep->pipeline) { 1982 usb_combined_input_packet_complete(&dev->dev, p); 1983 } else { 1984 usb_packet_complete(&dev->dev, p); 1985 } 1986 } 1987 free(data); 1988 } 1989 1990 static void usbredir_iso_packet(void *priv, uint64_t id, 1991 struct usb_redir_iso_packet_header *iso_packet, 1992 uint8_t *data, int data_len) 1993 { 1994 USBRedirDevice *dev = priv; 1995 uint8_t ep = iso_packet->endpoint; 1996 1997 DPRINTF2("iso-in status %d ep %02X len %d id %"PRIu64"\n", 1998 iso_packet->status, ep, data_len, id); 1999 2000 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) { 2001 ERROR("received iso packet for non iso endpoint %02X\n", ep); 2002 free(data); 2003 return; 2004 } 2005 2006 if (dev->endpoint[EP2I(ep)].iso_started == 0) { 2007 DPRINTF("received iso packet for non started stream ep %02X\n", ep); 2008 free(data); 2009 return; 2010 } 2011 2012 /* bufp_alloc also adds the packet to the ep queue */ 2013 bufp_alloc(dev, data, data_len, iso_packet->status, ep, data); 2014 } 2015 2016 static void usbredir_interrupt_packet(void *priv, uint64_t id, 2017 struct usb_redir_interrupt_packet_header *interrupt_packet, 2018 uint8_t *data, int data_len) 2019 { 2020 USBRedirDevice *dev = priv; 2021 uint8_t ep = interrupt_packet->endpoint; 2022 2023 DPRINTF("interrupt-in status %d ep %02X len %d id %"PRIu64"\n", 2024 interrupt_packet->status, ep, data_len, id); 2025 2026 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) { 2027 ERROR("received int packet for non interrupt endpoint %02X\n", ep); 2028 free(data); 2029 return; 2030 } 2031 2032 if (ep & USB_DIR_IN) { 2033 bool q_was_empty; 2034 2035 if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { 2036 DPRINTF("received int packet while not started ep %02X\n", ep); 2037 free(data); 2038 return; 2039 } 2040 2041 q_was_empty = QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq); 2042 2043 /* bufp_alloc also adds the packet to the ep queue */ 2044 bufp_alloc(dev, data, data_len, interrupt_packet->status, ep, data); 2045 2046 if (q_was_empty) { 2047 usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f), 0); 2048 } 2049 } else { 2050 /* 2051 * We report output interrupt packets as completed directly upon 2052 * submission, so all we can do here if one failed is warn. 2053 */ 2054 if (interrupt_packet->status) { 2055 WARNING("interrupt output failed status %d ep %02X id %"PRIu64"\n", 2056 interrupt_packet->status, ep, id); 2057 } 2058 } 2059 } 2060 2061 static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, 2062 struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, 2063 uint8_t *data, int data_len) 2064 { 2065 USBRedirDevice *dev = priv; 2066 uint8_t status, ep = buffered_bulk_packet->endpoint; 2067 void *free_on_destroy; 2068 int i, len; 2069 2070 DPRINTF("buffered-bulk-in status %d ep %02X len %d id %"PRIu64"\n", 2071 buffered_bulk_packet->status, ep, data_len, id); 2072 2073 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_BULK) { 2074 ERROR("received buffered-bulk packet for non bulk ep %02X\n", ep); 2075 free(data); 2076 return; 2077 } 2078 2079 if (dev->endpoint[EP2I(ep)].bulk_receiving_started == 0) { 2080 DPRINTF("received buffered-bulk packet on not started ep %02X\n", ep); 2081 free(data); 2082 return; 2083 } 2084 2085 /* Data must be in maxp chunks for buffered_bulk_add_*_data_to_packet */ 2086 len = dev->endpoint[EP2I(ep)].max_packet_size; 2087 status = usb_redir_success; 2088 free_on_destroy = NULL; 2089 for (i = 0; i < data_len; i += len) { 2090 int r; 2091 if (len >= (data_len - i)) { 2092 len = data_len - i; 2093 status = buffered_bulk_packet->status; 2094 free_on_destroy = data; 2095 } 2096 /* bufp_alloc also adds the packet to the ep queue */ 2097 r = bufp_alloc(dev, data + i, len, status, ep, free_on_destroy); 2098 if (r) { 2099 break; 2100 } 2101 } 2102 2103 if (dev->endpoint[EP2I(ep)].pending_async_packet) { 2104 USBPacket *p = dev->endpoint[EP2I(ep)].pending_async_packet; 2105 dev->endpoint[EP2I(ep)].pending_async_packet = NULL; 2106 usbredir_buffered_bulk_in_complete(dev, p, ep); 2107 usb_packet_complete(&dev->dev, p); 2108 } 2109 } 2110 2111 /* 2112 * Migration code 2113 */ 2114 2115 static int usbredir_pre_save(void *priv) 2116 { 2117 USBRedirDevice *dev = priv; 2118 2119 usbredir_fill_already_in_flight(dev); 2120 2121 return 0; 2122 } 2123 2124 static int usbredir_post_load(void *priv, int version_id) 2125 { 2126 USBRedirDevice *dev = priv; 2127 2128 if (dev->parser == NULL) { 2129 return 0; 2130 } 2131 2132 switch (dev->device_info.speed) { 2133 case usb_redir_speed_low: 2134 dev->dev.speed = USB_SPEED_LOW; 2135 break; 2136 case usb_redir_speed_full: 2137 dev->dev.speed = USB_SPEED_FULL; 2138 break; 2139 case usb_redir_speed_high: 2140 dev->dev.speed = USB_SPEED_HIGH; 2141 break; 2142 case usb_redir_speed_super: 2143 dev->dev.speed = USB_SPEED_SUPER; 2144 break; 2145 default: 2146 dev->dev.speed = USB_SPEED_FULL; 2147 } 2148 dev->dev.speedmask = (1 << dev->dev.speed); 2149 2150 usbredir_setup_usb_eps(dev); 2151 usbredir_check_bulk_receiving(dev); 2152 2153 return 0; 2154 } 2155 2156 /* For usbredirparser migration */ 2157 static int usbredir_put_parser(QEMUFile *f, void *priv, size_t unused, 2158 const VMStateField *field, QJSON *vmdesc) 2159 { 2160 USBRedirDevice *dev = priv; 2161 uint8_t *data; 2162 int len; 2163 2164 if (dev->parser == NULL) { 2165 qemu_put_be32(f, 0); 2166 return 0; 2167 } 2168 2169 usbredirparser_serialize(dev->parser, &data, &len); 2170 qemu_oom_check(data); 2171 2172 qemu_put_be32(f, len); 2173 qemu_put_buffer(f, data, len); 2174 2175 free(data); 2176 2177 return 0; 2178 } 2179 2180 static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused, 2181 const VMStateField *field) 2182 { 2183 USBRedirDevice *dev = priv; 2184 uint8_t *data; 2185 int len, ret; 2186 2187 len = qemu_get_be32(f); 2188 if (len == 0) { 2189 return 0; 2190 } 2191 2192 /* 2193 * If our chardev is not open already at this point the usbredir connection 2194 * has been broken (non seamless migration, or restore from disk). 2195 * 2196 * In this case create a temporary parser to receive the migration data, 2197 * and schedule the close_bh to report the device as disconnected to the 2198 * guest and to destroy the parser again. 2199 */ 2200 if (dev->parser == NULL) { 2201 WARNING("usb-redir connection broken during migration\n"); 2202 usbredir_create_parser(dev); 2203 qemu_bh_schedule(dev->chardev_close_bh); 2204 } 2205 2206 data = g_malloc(len); 2207 qemu_get_buffer(f, data, len); 2208 2209 ret = usbredirparser_unserialize(dev->parser, data, len); 2210 2211 g_free(data); 2212 2213 return ret; 2214 } 2215 2216 static const VMStateInfo usbredir_parser_vmstate_info = { 2217 .name = "usb-redir-parser", 2218 .put = usbredir_put_parser, 2219 .get = usbredir_get_parser, 2220 }; 2221 2222 2223 /* For buffered packets (iso/irq) queue migration */ 2224 static int usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused, 2225 const VMStateField *field, QJSON *vmdesc) 2226 { 2227 struct endp_data *endp = priv; 2228 USBRedirDevice *dev = endp->dev; 2229 struct buf_packet *bufp; 2230 int len, i = 0; 2231 2232 qemu_put_be32(f, endp->bufpq_size); 2233 QTAILQ_FOREACH(bufp, &endp->bufpq, next) { 2234 len = bufp->len - bufp->offset; 2235 DPRINTF("put_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, 2236 len, bufp->status); 2237 qemu_put_be32(f, len); 2238 qemu_put_be32(f, bufp->status); 2239 qemu_put_buffer(f, bufp->data + bufp->offset, len); 2240 i++; 2241 } 2242 assert(i == endp->bufpq_size); 2243 2244 return 0; 2245 } 2246 2247 static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused, 2248 const VMStateField *field) 2249 { 2250 struct endp_data *endp = priv; 2251 USBRedirDevice *dev = endp->dev; 2252 struct buf_packet *bufp; 2253 int i; 2254 2255 endp->bufpq_size = qemu_get_be32(f); 2256 for (i = 0; i < endp->bufpq_size; i++) { 2257 bufp = g_new(struct buf_packet, 1); 2258 bufp->len = qemu_get_be32(f); 2259 bufp->status = qemu_get_be32(f); 2260 bufp->offset = 0; 2261 bufp->data = qemu_oom_check(malloc(bufp->len)); /* regular malloc! */ 2262 bufp->free_on_destroy = bufp->data; 2263 qemu_get_buffer(f, bufp->data, bufp->len); 2264 QTAILQ_INSERT_TAIL(&endp->bufpq, bufp, next); 2265 DPRINTF("get_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, 2266 bufp->len, bufp->status); 2267 } 2268 return 0; 2269 } 2270 2271 static const VMStateInfo usbredir_ep_bufpq_vmstate_info = { 2272 .name = "usb-redir-bufpq", 2273 .put = usbredir_put_bufpq, 2274 .get = usbredir_get_bufpq, 2275 }; 2276 2277 2278 /* For endp_data migration */ 2279 static bool usbredir_bulk_receiving_needed(void *priv) 2280 { 2281 struct endp_data *endp = priv; 2282 2283 return endp->bulk_receiving_started; 2284 } 2285 2286 static const VMStateDescription usbredir_bulk_receiving_vmstate = { 2287 .name = "usb-redir-ep/bulk-receiving", 2288 .version_id = 1, 2289 .minimum_version_id = 1, 2290 .needed = usbredir_bulk_receiving_needed, 2291 .fields = (VMStateField[]) { 2292 VMSTATE_UINT8(bulk_receiving_started, struct endp_data), 2293 VMSTATE_END_OF_LIST() 2294 } 2295 }; 2296 2297 static bool usbredir_stream_needed(void *priv) 2298 { 2299 struct endp_data *endp = priv; 2300 2301 return endp->max_streams; 2302 } 2303 2304 static const VMStateDescription usbredir_stream_vmstate = { 2305 .name = "usb-redir-ep/stream-state", 2306 .version_id = 1, 2307 .minimum_version_id = 1, 2308 .needed = usbredir_stream_needed, 2309 .fields = (VMStateField[]) { 2310 VMSTATE_UINT32(max_streams, struct endp_data), 2311 VMSTATE_END_OF_LIST() 2312 } 2313 }; 2314 2315 static const VMStateDescription usbredir_ep_vmstate = { 2316 .name = "usb-redir-ep", 2317 .version_id = 1, 2318 .minimum_version_id = 1, 2319 .fields = (VMStateField[]) { 2320 VMSTATE_UINT8(type, struct endp_data), 2321 VMSTATE_UINT8(interval, struct endp_data), 2322 VMSTATE_UINT8(interface, struct endp_data), 2323 VMSTATE_UINT16(max_packet_size, struct endp_data), 2324 VMSTATE_UINT8(iso_started, struct endp_data), 2325 VMSTATE_UINT8(iso_error, struct endp_data), 2326 VMSTATE_UINT8(interrupt_started, struct endp_data), 2327 VMSTATE_UINT8(interrupt_error, struct endp_data), 2328 VMSTATE_UINT8(bufpq_prefilled, struct endp_data), 2329 VMSTATE_UINT8(bufpq_dropping_packets, struct endp_data), 2330 { 2331 .name = "bufpq", 2332 .version_id = 0, 2333 .field_exists = NULL, 2334 .size = 0, 2335 .info = &usbredir_ep_bufpq_vmstate_info, 2336 .flags = VMS_SINGLE, 2337 .offset = 0, 2338 }, 2339 VMSTATE_INT32(bufpq_target_size, struct endp_data), 2340 VMSTATE_END_OF_LIST() 2341 }, 2342 .subsections = (const VMStateDescription*[]) { 2343 &usbredir_bulk_receiving_vmstate, 2344 &usbredir_stream_vmstate, 2345 NULL 2346 } 2347 }; 2348 2349 2350 /* For PacketIdQueue migration */ 2351 static int usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused, 2352 const VMStateField *field, QJSON *vmdesc) 2353 { 2354 struct PacketIdQueue *q = priv; 2355 USBRedirDevice *dev = q->dev; 2356 struct PacketIdQueueEntry *e; 2357 int remain = q->size; 2358 2359 DPRINTF("put_packet_id_q %s size %d\n", q->name, q->size); 2360 qemu_put_be32(f, q->size); 2361 QTAILQ_FOREACH(e, &q->head, next) { 2362 qemu_put_be64(f, e->id); 2363 remain--; 2364 } 2365 assert(remain == 0); 2366 2367 return 0; 2368 } 2369 2370 static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused, 2371 const VMStateField *field) 2372 { 2373 struct PacketIdQueue *q = priv; 2374 USBRedirDevice *dev = q->dev; 2375 int i, size; 2376 uint64_t id; 2377 2378 size = qemu_get_be32(f); 2379 DPRINTF("get_packet_id_q %s size %d\n", q->name, size); 2380 for (i = 0; i < size; i++) { 2381 id = qemu_get_be64(f); 2382 packet_id_queue_add(q, id); 2383 } 2384 assert(q->size == size); 2385 return 0; 2386 } 2387 2388 static const VMStateInfo usbredir_ep_packet_id_q_vmstate_info = { 2389 .name = "usb-redir-packet-id-q", 2390 .put = usbredir_put_packet_id_q, 2391 .get = usbredir_get_packet_id_q, 2392 }; 2393 2394 static const VMStateDescription usbredir_ep_packet_id_queue_vmstate = { 2395 .name = "usb-redir-packet-id-queue", 2396 .version_id = 1, 2397 .minimum_version_id = 1, 2398 .fields = (VMStateField[]) { 2399 { 2400 .name = "queue", 2401 .version_id = 0, 2402 .field_exists = NULL, 2403 .size = 0, 2404 .info = &usbredir_ep_packet_id_q_vmstate_info, 2405 .flags = VMS_SINGLE, 2406 .offset = 0, 2407 }, 2408 VMSTATE_END_OF_LIST() 2409 } 2410 }; 2411 2412 2413 /* For usb_redir_device_connect_header migration */ 2414 static const VMStateDescription usbredir_device_info_vmstate = { 2415 .name = "usb-redir-device-info", 2416 .version_id = 1, 2417 .minimum_version_id = 1, 2418 .fields = (VMStateField[]) { 2419 VMSTATE_UINT8(speed, struct usb_redir_device_connect_header), 2420 VMSTATE_UINT8(device_class, struct usb_redir_device_connect_header), 2421 VMSTATE_UINT8(device_subclass, struct usb_redir_device_connect_header), 2422 VMSTATE_UINT8(device_protocol, struct usb_redir_device_connect_header), 2423 VMSTATE_UINT16(vendor_id, struct usb_redir_device_connect_header), 2424 VMSTATE_UINT16(product_id, struct usb_redir_device_connect_header), 2425 VMSTATE_UINT16(device_version_bcd, 2426 struct usb_redir_device_connect_header), 2427 VMSTATE_END_OF_LIST() 2428 } 2429 }; 2430 2431 2432 /* For usb_redir_interface_info_header migration */ 2433 static const VMStateDescription usbredir_interface_info_vmstate = { 2434 .name = "usb-redir-interface-info", 2435 .version_id = 1, 2436 .minimum_version_id = 1, 2437 .fields = (VMStateField[]) { 2438 VMSTATE_UINT32(interface_count, 2439 struct usb_redir_interface_info_header), 2440 VMSTATE_UINT8_ARRAY(interface, 2441 struct usb_redir_interface_info_header, 32), 2442 VMSTATE_UINT8_ARRAY(interface_class, 2443 struct usb_redir_interface_info_header, 32), 2444 VMSTATE_UINT8_ARRAY(interface_subclass, 2445 struct usb_redir_interface_info_header, 32), 2446 VMSTATE_UINT8_ARRAY(interface_protocol, 2447 struct usb_redir_interface_info_header, 32), 2448 VMSTATE_END_OF_LIST() 2449 } 2450 }; 2451 2452 2453 /* And finally the USBRedirDevice vmstate itself */ 2454 static const VMStateDescription usbredir_vmstate = { 2455 .name = "usb-redir", 2456 .version_id = 1, 2457 .minimum_version_id = 1, 2458 .pre_save = usbredir_pre_save, 2459 .post_load = usbredir_post_load, 2460 .fields = (VMStateField[]) { 2461 VMSTATE_USB_DEVICE(dev, USBRedirDevice), 2462 VMSTATE_TIMER_PTR(attach_timer, USBRedirDevice), 2463 { 2464 .name = "parser", 2465 .version_id = 0, 2466 .field_exists = NULL, 2467 .size = 0, 2468 .info = &usbredir_parser_vmstate_info, 2469 .flags = VMS_SINGLE, 2470 .offset = 0, 2471 }, 2472 VMSTATE_STRUCT_ARRAY(endpoint, USBRedirDevice, MAX_ENDPOINTS, 1, 2473 usbredir_ep_vmstate, struct endp_data), 2474 VMSTATE_STRUCT(cancelled, USBRedirDevice, 1, 2475 usbredir_ep_packet_id_queue_vmstate, 2476 struct PacketIdQueue), 2477 VMSTATE_STRUCT(already_in_flight, USBRedirDevice, 1, 2478 usbredir_ep_packet_id_queue_vmstate, 2479 struct PacketIdQueue), 2480 VMSTATE_STRUCT(device_info, USBRedirDevice, 1, 2481 usbredir_device_info_vmstate, 2482 struct usb_redir_device_connect_header), 2483 VMSTATE_STRUCT(interface_info, USBRedirDevice, 1, 2484 usbredir_interface_info_vmstate, 2485 struct usb_redir_interface_info_header), 2486 VMSTATE_END_OF_LIST() 2487 } 2488 }; 2489 2490 static Property usbredir_properties[] = { 2491 DEFINE_PROP_CHR("chardev", USBRedirDevice, cs), 2492 DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, usbredirparser_warning), 2493 DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str), 2494 DEFINE_PROP_BOOL("streams", USBRedirDevice, enable_streams, true), 2495 DEFINE_PROP_END_OF_LIST(), 2496 }; 2497 2498 static void usbredir_class_initfn(ObjectClass *klass, void *data) 2499 { 2500 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 2501 DeviceClass *dc = DEVICE_CLASS(klass); 2502 2503 uc->realize = usbredir_realize; 2504 uc->product_desc = "USB Redirection Device"; 2505 uc->unrealize = usbredir_unrealize; 2506 uc->cancel_packet = usbredir_cancel_packet; 2507 uc->handle_reset = usbredir_handle_reset; 2508 uc->handle_data = usbredir_handle_data; 2509 uc->handle_control = usbredir_handle_control; 2510 uc->flush_ep_queue = usbredir_flush_ep_queue; 2511 uc->ep_stopped = usbredir_ep_stopped; 2512 uc->alloc_streams = usbredir_alloc_streams; 2513 uc->free_streams = usbredir_free_streams; 2514 dc->vmsd = &usbredir_vmstate; 2515 dc->props = usbredir_properties; 2516 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 2517 } 2518 2519 static void usbredir_instance_init(Object *obj) 2520 { 2521 USBDevice *udev = USB_DEVICE(obj); 2522 USBRedirDevice *dev = USB_REDIRECT(udev); 2523 2524 device_add_bootindex_property(obj, &dev->bootindex, 2525 "bootindex", NULL, 2526 &udev->qdev, NULL); 2527 } 2528 2529 static const TypeInfo usbredir_dev_info = { 2530 .name = TYPE_USB_REDIR, 2531 .parent = TYPE_USB_DEVICE, 2532 .instance_size = sizeof(USBRedirDevice), 2533 .class_init = usbredir_class_initfn, 2534 .instance_init = usbredir_instance_init, 2535 }; 2536 2537 static void usbredir_register_types(void) 2538 { 2539 type_register_static(&usbredir_dev_info); 2540 } 2541 2542 type_init(usbredir_register_types) 2543