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/cutils.h" 30 #include "qemu/units.h" 31 #include "qapi/error.h" 32 #include "qemu/timer.h" 33 #include "sysemu/runstate.h" 34 #include "sysemu/sysemu.h" 35 #include "qapi/qmp/qerror.h" 36 #include "qemu/error-report.h" 37 #include "qemu/iov.h" 38 #include "qemu/module.h" 39 #include "chardev/char-fe.h" 40 41 #include <usbredirparser.h> 42 #include <usbredirfilter.h> 43 44 #include "hw/qdev-properties.h" 45 #include "hw/qdev-properties-system.h" 46 #include "hw/usb.h" 47 #include "migration/qemu-file-types.h" 48 #include "migration/vmstate.h" 49 #include "qom/object.h" 50 51 /* ERROR is defined below. Remove any previous definition. */ 52 #undef ERROR 53 54 #define MAX_ENDPOINTS 32 55 #define NO_INTERFACE_INFO 255 /* Valid interface_count always <= 32 */ 56 #define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f)) 57 #define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f)) 58 #define USBEP2I(usb_ep) (((usb_ep)->pid == USB_TOKEN_IN) ? \ 59 ((usb_ep)->nr | 0x10) : ((usb_ep)->nr)) 60 #define I2USBEP(d, i) (usb_ep_get(&(d)->dev, \ 61 ((i) & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT, \ 62 (i) & 0x0f)) 63 64 #ifndef USBREDIR_VERSION /* This is not defined in older usbredir versions */ 65 #define USBREDIR_VERSION 0 66 #endif 67 68 typedef struct USBRedirDevice USBRedirDevice; 69 70 /* Struct to hold buffered packets */ 71 struct buf_packet { 72 uint8_t *data; 73 void *free_on_destroy; 74 uint16_t len; 75 uint16_t offset; 76 uint8_t status; 77 QTAILQ_ENTRY(buf_packet)next; 78 }; 79 80 struct endp_data { 81 USBRedirDevice *dev; 82 uint8_t type; 83 uint8_t interval; 84 uint8_t interface; /* bInterfaceNumber this ep belongs to */ 85 uint16_t max_packet_size; /* In bytes, not wMaxPacketSize format !! */ 86 uint32_t max_streams; 87 uint8_t iso_started; 88 uint8_t iso_error; /* For reporting iso errors to the HC */ 89 uint8_t interrupt_started; 90 uint8_t interrupt_error; 91 uint8_t bulk_receiving_enabled; 92 uint8_t bulk_receiving_started; 93 uint8_t bufpq_prefilled; 94 uint8_t bufpq_dropping_packets; 95 QTAILQ_HEAD(, buf_packet) bufpq; 96 int32_t bufpq_size; 97 int32_t bufpq_target_size; 98 USBPacket *pending_async_packet; 99 }; 100 101 struct PacketIdQueueEntry { 102 uint64_t id; 103 QTAILQ_ENTRY(PacketIdQueueEntry)next; 104 }; 105 106 struct PacketIdQueue { 107 USBRedirDevice *dev; 108 const char *name; 109 QTAILQ_HEAD(, PacketIdQueueEntry) head; 110 int size; 111 }; 112 113 struct USBRedirDevice { 114 USBDevice dev; 115 /* Properties */ 116 CharBackend cs; 117 bool enable_streams; 118 bool suppress_remote_wake; 119 bool in_write; 120 uint8_t debug; 121 int32_t bootindex; 122 char *filter_str; 123 /* Data passed from chardev the fd_read cb to the usbredirparser read cb */ 124 const uint8_t *read_buf; 125 int read_buf_size; 126 /* Active chardev-watch-tag */ 127 guint watch; 128 /* For async handling of close / reject */ 129 QEMUBH *chardev_close_bh; 130 QEMUBH *device_reject_bh; 131 /* To delay the usb attach in case of quick chardev close + open */ 132 QEMUTimer *attach_timer; 133 int64_t next_attach_time; 134 struct usbredirparser *parser; 135 struct endp_data endpoint[MAX_ENDPOINTS]; 136 struct PacketIdQueue cancelled; 137 struct PacketIdQueue already_in_flight; 138 void (*buffered_bulk_in_complete)(USBRedirDevice *, USBPacket *, uint8_t); 139 /* Data for device filtering */ 140 struct usb_redir_device_connect_header device_info; 141 struct usb_redir_interface_info_header interface_info; 142 struct usbredirfilter_rule *filter_rules; 143 int filter_rules_count; 144 int compatible_speedmask; 145 VMChangeStateEntry *vmstate; 146 }; 147 148 #define TYPE_USB_REDIR "usb-redir" 149 DECLARE_INSTANCE_CHECKER(USBRedirDevice, USB_REDIRECT, 150 TYPE_USB_REDIR) 151 152 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h); 153 static void usbredir_device_connect(void *priv, 154 struct usb_redir_device_connect_header *device_connect); 155 static void usbredir_device_disconnect(void *priv); 156 static void usbredir_interface_info(void *priv, 157 struct usb_redir_interface_info_header *interface_info); 158 static void usbredir_ep_info(void *priv, 159 struct usb_redir_ep_info_header *ep_info); 160 static void usbredir_configuration_status(void *priv, uint64_t id, 161 struct usb_redir_configuration_status_header *configuration_status); 162 static void usbredir_alt_setting_status(void *priv, uint64_t id, 163 struct usb_redir_alt_setting_status_header *alt_setting_status); 164 static void usbredir_iso_stream_status(void *priv, uint64_t id, 165 struct usb_redir_iso_stream_status_header *iso_stream_status); 166 static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, 167 struct usb_redir_interrupt_receiving_status_header 168 *interrupt_receiving_status); 169 static void usbredir_bulk_streams_status(void *priv, uint64_t id, 170 struct usb_redir_bulk_streams_status_header *bulk_streams_status); 171 static void usbredir_bulk_receiving_status(void *priv, uint64_t id, 172 struct usb_redir_bulk_receiving_status_header *bulk_receiving_status); 173 static void usbredir_control_packet(void *priv, uint64_t id, 174 struct usb_redir_control_packet_header *control_packet, 175 uint8_t *data, int data_len); 176 static void usbredir_bulk_packet(void *priv, uint64_t id, 177 struct usb_redir_bulk_packet_header *bulk_packet, 178 uint8_t *data, int data_len); 179 static void usbredir_iso_packet(void *priv, uint64_t id, 180 struct usb_redir_iso_packet_header *iso_packet, 181 uint8_t *data, int data_len); 182 static void usbredir_interrupt_packet(void *priv, uint64_t id, 183 struct usb_redir_interrupt_packet_header *interrupt_header, 184 uint8_t *data, int data_len); 185 static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, 186 struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, 187 uint8_t *data, int data_len); 188 189 static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, 190 int status); 191 192 #define VERSION "qemu usb-redir guest " QEMU_VERSION 193 194 /* 195 * Logging stuff 196 */ 197 198 #define ERROR(...) \ 199 do { \ 200 if (dev->debug >= usbredirparser_error) { \ 201 error_report("usb-redir error: " __VA_ARGS__); \ 202 } \ 203 } while (0) 204 #define WARNING(...) \ 205 do { \ 206 if (dev->debug >= usbredirparser_warning) { \ 207 warn_report("" __VA_ARGS__); \ 208 } \ 209 } while (0) 210 #define INFO(...) \ 211 do { \ 212 if (dev->debug >= usbredirparser_info) { \ 213 error_report("usb-redir: " __VA_ARGS__); \ 214 } \ 215 } while (0) 216 #define DPRINTF(...) \ 217 do { \ 218 if (dev->debug >= usbredirparser_debug) { \ 219 error_report("usb-redir: " __VA_ARGS__); \ 220 } \ 221 } while (0) 222 #define DPRINTF2(...) \ 223 do { \ 224 if (dev->debug >= usbredirparser_debug_data) { \ 225 error_report("usb-redir: " __VA_ARGS__); \ 226 } \ 227 } while (0) 228 229 static void usbredir_log(void *priv, int level, const char *msg) 230 { 231 USBRedirDevice *dev = priv; 232 233 if (dev->debug < level) { 234 return; 235 } 236 237 error_report("%s", msg); 238 } 239 240 static void usbredir_log_data(USBRedirDevice *dev, const char *desc, 241 const uint8_t *data, int len) 242 { 243 if (dev->debug < usbredirparser_debug_data) { 244 return; 245 } 246 qemu_hexdump(stderr, desc, data, len); 247 } 248 249 /* 250 * usbredirparser io functions 251 */ 252 253 static int usbredir_read(void *priv, uint8_t *data, int count) 254 { 255 USBRedirDevice *dev = priv; 256 257 if (dev->read_buf_size < count) { 258 count = dev->read_buf_size; 259 } 260 261 memcpy(data, dev->read_buf, count); 262 263 dev->read_buf_size -= count; 264 if (dev->read_buf_size) { 265 dev->read_buf += count; 266 } else { 267 dev->read_buf = NULL; 268 } 269 270 return count; 271 } 272 273 static gboolean usbredir_write_unblocked(void *do_not_use, GIOCondition cond, 274 void *opaque) 275 { 276 USBRedirDevice *dev = opaque; 277 278 dev->watch = 0; 279 usbredirparser_do_write(dev->parser); 280 281 return FALSE; 282 } 283 284 static int usbredir_write(void *priv, uint8_t *data, int count) 285 { 286 USBRedirDevice *dev = priv; 287 int r; 288 289 if (!qemu_chr_fe_backend_open(&dev->cs)) { 290 return 0; 291 } 292 293 /* Don't send new data to the chardev until our state is fully synced */ 294 if (!runstate_check(RUN_STATE_RUNNING)) { 295 return 0; 296 } 297 298 /* Recursion check */ 299 if (dev->in_write) { 300 DPRINTF("usbredir_write recursion\n"); 301 return 0; 302 } 303 dev->in_write = true; 304 305 r = qemu_chr_fe_write(&dev->cs, data, count); 306 if (r < count) { 307 if (!dev->watch) { 308 dev->watch = qemu_chr_fe_add_watch(&dev->cs, G_IO_OUT | G_IO_HUP, 309 usbredir_write_unblocked, dev); 310 } 311 if (r < 0) { 312 r = 0; 313 } 314 } 315 dev->in_write = false; 316 return r; 317 } 318 319 /* 320 * Cancelled and buffered packets helpers 321 */ 322 323 static void packet_id_queue_init(struct PacketIdQueue *q, 324 USBRedirDevice *dev, const char *name) 325 { 326 q->dev = dev; 327 q->name = name; 328 QTAILQ_INIT(&q->head); 329 q->size = 0; 330 } 331 332 static void packet_id_queue_add(struct PacketIdQueue *q, uint64_t id) 333 { 334 USBRedirDevice *dev = q->dev; 335 struct PacketIdQueueEntry *e; 336 337 DPRINTF("adding packet id %"PRIu64" to %s queue\n", id, q->name); 338 339 e = g_new0(struct PacketIdQueueEntry, 1); 340 e->id = id; 341 QTAILQ_INSERT_TAIL(&q->head, e, next); 342 q->size++; 343 } 344 345 static int packet_id_queue_remove(struct PacketIdQueue *q, uint64_t id) 346 { 347 USBRedirDevice *dev = q->dev; 348 struct PacketIdQueueEntry *e; 349 350 QTAILQ_FOREACH(e, &q->head, next) { 351 if (e->id == id) { 352 DPRINTF("removing packet id %"PRIu64" from %s queue\n", 353 id, q->name); 354 QTAILQ_REMOVE(&q->head, e, next); 355 q->size--; 356 g_free(e); 357 return 1; 358 } 359 } 360 return 0; 361 } 362 363 static void packet_id_queue_empty(struct PacketIdQueue *q) 364 { 365 USBRedirDevice *dev = q->dev; 366 struct PacketIdQueueEntry *e, *next_e; 367 368 DPRINTF("removing %d packet-ids from %s queue\n", q->size, q->name); 369 370 QTAILQ_FOREACH_SAFE(e, &q->head, next, next_e) { 371 QTAILQ_REMOVE(&q->head, e, next); 372 g_free(e); 373 } 374 q->size = 0; 375 } 376 377 static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) 378 { 379 USBRedirDevice *dev = USB_REDIRECT(udev); 380 int i = USBEP2I(p->ep); 381 382 if (p->combined) { 383 usb_combined_packet_cancel(udev, p); 384 return; 385 } 386 387 if (dev->endpoint[i].pending_async_packet) { 388 assert(dev->endpoint[i].pending_async_packet == p); 389 dev->endpoint[i].pending_async_packet = NULL; 390 return; 391 } 392 393 packet_id_queue_add(&dev->cancelled, p->id); 394 usbredirparser_send_cancel_data_packet(dev->parser, p->id); 395 usbredirparser_do_write(dev->parser); 396 } 397 398 static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id) 399 { 400 if (!dev->dev.attached) { 401 return 1; /* Treat everything as cancelled after a disconnect */ 402 } 403 return packet_id_queue_remove(&dev->cancelled, id); 404 } 405 406 static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev, 407 struct USBEndpoint *ep) 408 { 409 static USBPacket *p; 410 411 /* async handled packets for bulk receiving eps do not count as inflight */ 412 if (dev->endpoint[USBEP2I(ep)].bulk_receiving_started) { 413 return; 414 } 415 416 QTAILQ_FOREACH(p, &ep->queue, queue) { 417 /* Skip combined packets, except for the first */ 418 if (p->combined && p != p->combined->first) { 419 continue; 420 } 421 if (p->state == USB_PACKET_ASYNC) { 422 packet_id_queue_add(&dev->already_in_flight, p->id); 423 } 424 } 425 } 426 427 static void usbredir_fill_already_in_flight(USBRedirDevice *dev) 428 { 429 int ep; 430 struct USBDevice *udev = &dev->dev; 431 432 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_ctl); 433 434 for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { 435 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_in[ep]); 436 usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_out[ep]); 437 } 438 } 439 440 static int usbredir_already_in_flight(USBRedirDevice *dev, uint64_t id) 441 { 442 return packet_id_queue_remove(&dev->already_in_flight, id); 443 } 444 445 static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev, 446 uint8_t ep, uint64_t id) 447 { 448 USBPacket *p; 449 450 if (usbredir_is_cancelled(dev, id)) { 451 return NULL; 452 } 453 454 p = usb_ep_find_packet_by_id(&dev->dev, 455 (ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT, 456 ep & 0x0f, id); 457 if (p == NULL) { 458 ERROR("could not find packet with id %"PRIu64"\n", id); 459 } 460 return p; 461 } 462 463 static int bufp_alloc(USBRedirDevice *dev, uint8_t *data, uint16_t len, 464 uint8_t status, uint8_t ep, void *free_on_destroy) 465 { 466 struct buf_packet *bufp; 467 468 if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets && 469 dev->endpoint[EP2I(ep)].bufpq_size > 470 2 * dev->endpoint[EP2I(ep)].bufpq_target_size) { 471 DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep); 472 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1; 473 } 474 /* Since we're interupting the stream anyways, drop enough packets to get 475 back to our target buffer size */ 476 if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) { 477 if (dev->endpoint[EP2I(ep)].bufpq_size > 478 dev->endpoint[EP2I(ep)].bufpq_target_size) { 479 free(free_on_destroy); 480 return -1; 481 } 482 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 483 } 484 485 bufp = g_new(struct buf_packet, 1); 486 bufp->data = data; 487 bufp->len = len; 488 bufp->offset = 0; 489 bufp->status = status; 490 bufp->free_on_destroy = free_on_destroy; 491 QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); 492 dev->endpoint[EP2I(ep)].bufpq_size++; 493 return 0; 494 } 495 496 static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, 497 uint8_t ep) 498 { 499 QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); 500 dev->endpoint[EP2I(ep)].bufpq_size--; 501 free(bufp->free_on_destroy); 502 g_free(bufp); 503 } 504 505 static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) 506 { 507 struct buf_packet *buf, *buf_next; 508 509 QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) { 510 bufp_free(dev, buf, ep); 511 } 512 } 513 514 /* 515 * USBDevice callbacks 516 */ 517 518 static void usbredir_handle_reset(USBDevice *udev) 519 { 520 USBRedirDevice *dev = USB_REDIRECT(udev); 521 522 DPRINTF("reset device\n"); 523 usbredirparser_send_reset(dev->parser); 524 usbredirparser_do_write(dev->parser); 525 } 526 527 static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, 528 uint8_t ep) 529 { 530 int status, len; 531 if (!dev->endpoint[EP2I(ep)].iso_started && 532 !dev->endpoint[EP2I(ep)].iso_error) { 533 struct usb_redir_start_iso_stream_header start_iso = { 534 .endpoint = ep, 535 }; 536 int pkts_per_sec; 537 538 if (dev->dev.speed == USB_SPEED_HIGH) { 539 pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval; 540 } else { 541 pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval; 542 } 543 /* Testing has shown that we need circa 60 ms buffer */ 544 dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; 545 546 /* Aim for approx 100 interrupts / second on the client to 547 balance latency and interrupt load */ 548 start_iso.pkts_per_urb = pkts_per_sec / 100; 549 if (start_iso.pkts_per_urb < 1) { 550 start_iso.pkts_per_urb = 1; 551 } else if (start_iso.pkts_per_urb > 32) { 552 start_iso.pkts_per_urb = 32; 553 } 554 555 start_iso.no_urbs = DIV_ROUND_UP( 556 dev->endpoint[EP2I(ep)].bufpq_target_size, 557 start_iso.pkts_per_urb); 558 /* Output endpoints pre-fill only 1/2 of the packets, keeping the rest 559 as overflow buffer. Also see the usbredir protocol documentation */ 560 if (!(ep & USB_DIR_IN)) { 561 start_iso.no_urbs *= 2; 562 } 563 if (start_iso.no_urbs > 16) { 564 start_iso.no_urbs = 16; 565 } 566 567 /* No id, we look at the ep when receiving a status back */ 568 usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso); 569 usbredirparser_do_write(dev->parser); 570 DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n", 571 pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); 572 dev->endpoint[EP2I(ep)].iso_started = 1; 573 dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; 574 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 575 } 576 577 if (ep & USB_DIR_IN) { 578 struct buf_packet *isop; 579 580 if (dev->endpoint[EP2I(ep)].iso_started && 581 !dev->endpoint[EP2I(ep)].bufpq_prefilled) { 582 if (dev->endpoint[EP2I(ep)].bufpq_size < 583 dev->endpoint[EP2I(ep)].bufpq_target_size) { 584 return; 585 } 586 dev->endpoint[EP2I(ep)].bufpq_prefilled = 1; 587 } 588 589 isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); 590 if (isop == NULL) { 591 DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n", 592 ep, dev->endpoint[EP2I(ep)].iso_error); 593 /* Re-fill the buffer */ 594 dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; 595 /* Check iso_error for stream errors, otherwise its an underrun */ 596 status = dev->endpoint[EP2I(ep)].iso_error; 597 dev->endpoint[EP2I(ep)].iso_error = 0; 598 p->status = status ? USB_RET_IOERROR : USB_RET_SUCCESS; 599 return; 600 } 601 DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep, 602 isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); 603 604 status = isop->status; 605 len = isop->len; 606 if (len > p->iov.size) { 607 ERROR("received iso data is larger then packet ep %02X (%d > %d)\n", 608 ep, len, (int)p->iov.size); 609 len = p->iov.size; 610 status = usb_redir_babble; 611 } 612 usb_packet_copy(p, isop->data, len); 613 bufp_free(dev, isop, ep); 614 usbredir_handle_status(dev, p, status); 615 } else { 616 /* If the stream was not started because of a pending error don't 617 send the packet to the usb-host */ 618 if (dev->endpoint[EP2I(ep)].iso_started) { 619 struct usb_redir_iso_packet_header iso_packet = { 620 .endpoint = ep, 621 .length = p->iov.size 622 }; 623 g_autofree uint8_t *buf = g_malloc(p->iov.size); 624 /* No id, we look at the ep when receiving a status back */ 625 usb_packet_copy(p, buf, p->iov.size); 626 usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet, 627 buf, p->iov.size); 628 usbredirparser_do_write(dev->parser); 629 } 630 status = dev->endpoint[EP2I(ep)].iso_error; 631 dev->endpoint[EP2I(ep)].iso_error = 0; 632 DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status, 633 p->iov.size); 634 usbredir_handle_status(dev, p, status); 635 } 636 } 637 638 static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) 639 { 640 struct usb_redir_stop_iso_stream_header stop_iso_stream = { 641 .endpoint = ep 642 }; 643 if (dev->endpoint[EP2I(ep)].iso_started) { 644 usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream); 645 DPRINTF("iso stream stopped ep %02X\n", ep); 646 dev->endpoint[EP2I(ep)].iso_started = 0; 647 } 648 dev->endpoint[EP2I(ep)].iso_error = 0; 649 usbredir_free_bufpq(dev, ep); 650 } 651 652 /* 653 * The usb-host may poll the endpoint faster then our guest, resulting in lots 654 * of smaller bulkp-s. The below buffered_bulk_in_complete* functions combine 655 * data from multiple bulkp-s into a single packet, avoiding bufpq overflows. 656 */ 657 static void usbredir_buffered_bulk_add_data_to_packet(USBRedirDevice *dev, 658 struct buf_packet *bulkp, int count, USBPacket *p, uint8_t ep) 659 { 660 usb_packet_copy(p, bulkp->data + bulkp->offset, count); 661 bulkp->offset += count; 662 if (bulkp->offset == bulkp->len) { 663 /* Store status in the last packet with data from this bulkp */ 664 usbredir_handle_status(dev, p, bulkp->status); 665 bufp_free(dev, bulkp, ep); 666 } 667 } 668 669 static void usbredir_buffered_bulk_in_complete_raw(USBRedirDevice *dev, 670 USBPacket *p, uint8_t ep) 671 { 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 count = bulkp->len - bulkp->offset; 678 if (count > (p->iov.size - p->actual_length)) { 679 count = p->iov.size - p->actual_length; 680 } 681 usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); 682 } 683 } 684 685 static void usbredir_buffered_bulk_in_complete_ftdi(USBRedirDevice *dev, 686 USBPacket *p, uint8_t ep) 687 { 688 const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; 689 uint8_t header[2] = { 0, 0 }; 690 struct buf_packet *bulkp; 691 int count; 692 693 while ((bulkp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq)) && 694 p->actual_length < p->iov.size && p->status == USB_RET_SUCCESS) { 695 if (bulkp->len < 2) { 696 WARNING("malformed ftdi bulk in packet\n"); 697 bufp_free(dev, bulkp, ep); 698 continue; 699 } 700 701 if ((p->actual_length % maxp) == 0) { 702 usb_packet_copy(p, bulkp->data, 2); 703 memcpy(header, bulkp->data, 2); 704 } else { 705 if (bulkp->data[0] != header[0] || bulkp->data[1] != header[1]) { 706 break; /* Different header, add to next packet */ 707 } 708 } 709 710 if (bulkp->offset == 0) { 711 bulkp->offset = 2; /* Skip header */ 712 } 713 count = bulkp->len - bulkp->offset; 714 /* Must repeat the header at maxp interval */ 715 if (count > (maxp - (p->actual_length % maxp))) { 716 count = maxp - (p->actual_length % maxp); 717 } 718 usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); 719 } 720 } 721 722 static void usbredir_buffered_bulk_in_complete(USBRedirDevice *dev, 723 USBPacket *p, uint8_t ep) 724 { 725 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 726 dev->buffered_bulk_in_complete(dev, p, ep); 727 DPRINTF("bulk-token-in ep %02X status %d len %d id %"PRIu64"\n", 728 ep, p->status, p->actual_length, p->id); 729 } 730 731 static void usbredir_handle_buffered_bulk_in_data(USBRedirDevice *dev, 732 USBPacket *p, uint8_t ep) 733 { 734 /* Input bulk endpoint, buffered packet input */ 735 if (!dev->endpoint[EP2I(ep)].bulk_receiving_started) { 736 int bpt; 737 struct usb_redir_start_bulk_receiving_header start = { 738 .endpoint = ep, 739 .stream_id = 0, 740 .no_transfers = 5, 741 }; 742 /* Round bytes_per_transfer up to a multiple of max_packet_size */ 743 bpt = 512 + dev->endpoint[EP2I(ep)].max_packet_size - 1; 744 bpt /= dev->endpoint[EP2I(ep)].max_packet_size; 745 bpt *= dev->endpoint[EP2I(ep)].max_packet_size; 746 start.bytes_per_transfer = bpt; 747 /* No id, we look at the ep when receiving a status back */ 748 usbredirparser_send_start_bulk_receiving(dev->parser, 0, &start); 749 usbredirparser_do_write(dev->parser); 750 DPRINTF("bulk receiving started bytes/transfer %u count %d ep %02X\n", 751 start.bytes_per_transfer, start.no_transfers, ep); 752 dev->endpoint[EP2I(ep)].bulk_receiving_started = 1; 753 /* We don't really want to drop bulk packets ever, but 754 having some upper limit to how much we buffer is good. */ 755 dev->endpoint[EP2I(ep)].bufpq_target_size = 5000; 756 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 757 } 758 759 if (QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq)) { 760 DPRINTF("bulk-token-in ep %02X, no bulkp\n", ep); 761 assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); 762 dev->endpoint[EP2I(ep)].pending_async_packet = p; 763 p->status = USB_RET_ASYNC; 764 return; 765 } 766 usbredir_buffered_bulk_in_complete(dev, p, ep); 767 } 768 769 static void usbredir_stop_bulk_receiving(USBRedirDevice *dev, uint8_t ep) 770 { 771 struct usb_redir_stop_bulk_receiving_header stop_bulk = { 772 .endpoint = ep, 773 .stream_id = 0, 774 }; 775 if (dev->endpoint[EP2I(ep)].bulk_receiving_started) { 776 usbredirparser_send_stop_bulk_receiving(dev->parser, 0, &stop_bulk); 777 DPRINTF("bulk receiving stopped ep %02X\n", ep); 778 dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; 779 } 780 usbredir_free_bufpq(dev, ep); 781 } 782 783 static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, 784 uint8_t ep) 785 { 786 struct usb_redir_bulk_packet_header bulk_packet; 787 size_t size = usb_packet_size(p); 788 const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; 789 790 if (usbredir_already_in_flight(dev, p->id)) { 791 p->status = USB_RET_ASYNC; 792 return; 793 } 794 795 if (dev->endpoint[EP2I(ep)].bulk_receiving_enabled) { 796 if (size != 0 && (size % maxp) == 0) { 797 usbredir_handle_buffered_bulk_in_data(dev, p, ep); 798 return; 799 } 800 WARNING("bulk recv invalid size %zd ep %02x, disabling\n", size, ep); 801 assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); 802 usbredir_stop_bulk_receiving(dev, ep); 803 dev->endpoint[EP2I(ep)].bulk_receiving_enabled = 0; 804 } 805 806 DPRINTF("bulk-out ep %02X stream %u len %zd id %"PRIu64"\n", 807 ep, p->stream, size, p->id); 808 809 bulk_packet.endpoint = ep; 810 bulk_packet.length = size; 811 bulk_packet.stream_id = p->stream; 812 bulk_packet.length_high = size >> 16; 813 assert(bulk_packet.length_high == 0 || 814 usbredirparser_peer_has_cap(dev->parser, 815 usb_redir_cap_32bits_bulk_length)); 816 817 if (ep & USB_DIR_IN || size == 0) { 818 usbredirparser_send_bulk_packet(dev->parser, p->id, 819 &bulk_packet, NULL, 0); 820 } else { 821 g_autofree uint8_t *buf = g_malloc(size); 822 usb_packet_copy(p, buf, size); 823 usbredir_log_data(dev, "bulk data out:", buf, size); 824 usbredirparser_send_bulk_packet(dev->parser, p->id, 825 &bulk_packet, buf, size); 826 } 827 usbredirparser_do_write(dev->parser); 828 p->status = USB_RET_ASYNC; 829 } 830 831 static void usbredir_handle_interrupt_in_data(USBRedirDevice *dev, 832 USBPacket *p, uint8_t ep) 833 { 834 /* Input interrupt endpoint, buffered packet input */ 835 struct buf_packet *intp, *intp_to_free; 836 int status, len, sum; 837 838 if (!dev->endpoint[EP2I(ep)].interrupt_started && 839 !dev->endpoint[EP2I(ep)].interrupt_error) { 840 struct usb_redir_start_interrupt_receiving_header start_int = { 841 .endpoint = ep, 842 }; 843 /* No id, we look at the ep when receiving a status back */ 844 usbredirparser_send_start_interrupt_receiving(dev->parser, 0, 845 &start_int); 846 usbredirparser_do_write(dev->parser); 847 DPRINTF("interrupt recv started ep %02X\n", ep); 848 dev->endpoint[EP2I(ep)].interrupt_started = 1; 849 /* We don't really want to drop interrupt packets ever, but 850 having some upper limit to how much we buffer is good. */ 851 dev->endpoint[EP2I(ep)].bufpq_target_size = 1000; 852 dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; 853 } 854 855 /* check for completed interrupt message (with all fragments) */ 856 sum = 0; 857 QTAILQ_FOREACH(intp, &dev->endpoint[EP2I(ep)].bufpq, next) { 858 sum += intp->len; 859 if (intp->len < dev->endpoint[EP2I(ep)].max_packet_size || 860 sum >= p->iov.size) 861 break; 862 } 863 864 if (intp == NULL) { 865 DPRINTF2("interrupt-token-in ep %02X, no intp, buffered %d\n", ep, sum); 866 /* Check interrupt_error for stream errors */ 867 status = dev->endpoint[EP2I(ep)].interrupt_error; 868 dev->endpoint[EP2I(ep)].interrupt_error = 0; 869 if (status) { 870 usbredir_handle_status(dev, p, status); 871 } else { 872 p->status = USB_RET_NAK; 873 } 874 return; 875 } 876 877 /* copy of completed interrupt message */ 878 sum = 0; 879 status = usb_redir_success; 880 intp_to_free = NULL; 881 QTAILQ_FOREACH(intp, &dev->endpoint[EP2I(ep)].bufpq, next) { 882 if (intp_to_free) { 883 bufp_free(dev, intp_to_free, ep); 884 } 885 DPRINTF("interrupt-token-in ep %02X fragment status %d len %d\n", ep, 886 intp->status, intp->len); 887 888 sum += intp->len; 889 len = intp->len; 890 if (status == usb_redir_success) { 891 status = intp->status; 892 } 893 if (sum > p->iov.size) { 894 ERROR("received int data is larger then packet ep %02X\n", ep); 895 len -= (sum - p->iov.size); 896 sum = p->iov.size; 897 status = usb_redir_babble; 898 } 899 900 usb_packet_copy(p, intp->data, len); 901 902 intp_to_free = intp; 903 if (intp->len < dev->endpoint[EP2I(ep)].max_packet_size || 904 sum >= p->iov.size) 905 break; 906 } 907 if (intp_to_free) { 908 bufp_free(dev, intp_to_free, ep); 909 } 910 DPRINTF("interrupt-token-in ep %02X summary status %d len %d\n", ep, 911 status, sum); 912 usbredir_handle_status(dev, p, status); 913 } 914 915 /* 916 * Handle interrupt out data, the usbredir protocol expects us to do this 917 * async, so that it can report back a completion status. But guests will 918 * expect immediate completion for an interrupt endpoint, and handling this 919 * async causes migration issues. So we report success directly, counting 920 * on the fact that output interrupt packets normally always succeed. 921 */ 922 static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, 923 USBPacket *p, uint8_t ep) 924 { 925 struct usb_redir_interrupt_packet_header interrupt_packet; 926 g_autofree uint8_t *buf = g_malloc(p->iov.size); 927 928 DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, 929 p->iov.size, p->id); 930 931 interrupt_packet.endpoint = ep; 932 interrupt_packet.length = p->iov.size; 933 934 usb_packet_copy(p, buf, p->iov.size); 935 usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size); 936 usbredirparser_send_interrupt_packet(dev->parser, p->id, 937 &interrupt_packet, buf, p->iov.size); 938 usbredirparser_do_write(dev->parser); 939 } 940 941 static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, 942 uint8_t ep) 943 { 944 struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = { 945 .endpoint = ep 946 }; 947 if (dev->endpoint[EP2I(ep)].interrupt_started) { 948 usbredirparser_send_stop_interrupt_receiving(dev->parser, 0, 949 &stop_interrupt_recv); 950 DPRINTF("interrupt recv stopped ep %02X\n", ep); 951 dev->endpoint[EP2I(ep)].interrupt_started = 0; 952 } 953 dev->endpoint[EP2I(ep)].interrupt_error = 0; 954 usbredir_free_bufpq(dev, ep); 955 } 956 957 static void usbredir_handle_data(USBDevice *udev, USBPacket *p) 958 { 959 USBRedirDevice *dev = USB_REDIRECT(udev); 960 uint8_t ep; 961 962 ep = p->ep->nr; 963 if (p->pid == USB_TOKEN_IN) { 964 ep |= USB_DIR_IN; 965 } 966 967 switch (dev->endpoint[EP2I(ep)].type) { 968 case USB_ENDPOINT_XFER_CONTROL: 969 ERROR("handle_data called for control transfer on ep %02X\n", ep); 970 p->status = USB_RET_NAK; 971 break; 972 case USB_ENDPOINT_XFER_BULK: 973 if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN && 974 p->ep->pipeline) { 975 p->status = USB_RET_ADD_TO_QUEUE; 976 break; 977 } 978 usbredir_handle_bulk_data(dev, p, ep); 979 break; 980 case USB_ENDPOINT_XFER_ISOC: 981 usbredir_handle_iso_data(dev, p, ep); 982 break; 983 case USB_ENDPOINT_XFER_INT: 984 if (ep & USB_DIR_IN) { 985 usbredir_handle_interrupt_in_data(dev, p, ep); 986 } else { 987 usbredir_handle_interrupt_out_data(dev, p, ep); 988 } 989 break; 990 default: 991 ERROR("handle_data ep %02X has unknown type %d\n", ep, 992 dev->endpoint[EP2I(ep)].type); 993 p->status = USB_RET_NAK; 994 } 995 } 996 997 static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) 998 { 999 if (ep->pid == USB_TOKEN_IN && ep->pipeline) { 1000 usb_ep_combine_input_packets(ep); 1001 } 1002 } 1003 1004 static void usbredir_stop_ep(USBRedirDevice *dev, int i) 1005 { 1006 uint8_t ep = I2EP(i); 1007 1008 switch (dev->endpoint[i].type) { 1009 case USB_ENDPOINT_XFER_BULK: 1010 if (ep & USB_DIR_IN) { 1011 usbredir_stop_bulk_receiving(dev, ep); 1012 } 1013 break; 1014 case USB_ENDPOINT_XFER_ISOC: 1015 usbredir_stop_iso_stream(dev, ep); 1016 break; 1017 case USB_ENDPOINT_XFER_INT: 1018 if (ep & USB_DIR_IN) { 1019 usbredir_stop_interrupt_receiving(dev, ep); 1020 } 1021 break; 1022 } 1023 usbredir_free_bufpq(dev, ep); 1024 } 1025 1026 static void usbredir_ep_stopped(USBDevice *udev, USBEndpoint *uep) 1027 { 1028 USBRedirDevice *dev = USB_REDIRECT(udev); 1029 1030 usbredir_stop_ep(dev, USBEP2I(uep)); 1031 usbredirparser_do_write(dev->parser); 1032 } 1033 1034 static void usbredir_set_config(USBRedirDevice *dev, USBPacket *p, 1035 int config) 1036 { 1037 struct usb_redir_set_configuration_header set_config; 1038 int i; 1039 1040 DPRINTF("set config %d id %"PRIu64"\n", config, p->id); 1041 1042 for (i = 0; i < MAX_ENDPOINTS; i++) { 1043 usbredir_stop_ep(dev, i); 1044 } 1045 1046 set_config.configuration = config; 1047 usbredirparser_send_set_configuration(dev->parser, p->id, &set_config); 1048 usbredirparser_do_write(dev->parser); 1049 p->status = USB_RET_ASYNC; 1050 } 1051 1052 static void usbredir_get_config(USBRedirDevice *dev, USBPacket *p) 1053 { 1054 DPRINTF("get config id %"PRIu64"\n", p->id); 1055 1056 usbredirparser_send_get_configuration(dev->parser, p->id); 1057 usbredirparser_do_write(dev->parser); 1058 p->status = USB_RET_ASYNC; 1059 } 1060 1061 static void usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, 1062 int interface, int alt) 1063 { 1064 struct usb_redir_set_alt_setting_header set_alt; 1065 int i; 1066 1067 DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id); 1068 1069 for (i = 0; i < MAX_ENDPOINTS; i++) { 1070 if (dev->endpoint[i].interface == interface) { 1071 usbredir_stop_ep(dev, i); 1072 } 1073 } 1074 1075 set_alt.interface = interface; 1076 set_alt.alt = alt; 1077 usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt); 1078 usbredirparser_do_write(dev->parser); 1079 p->status = USB_RET_ASYNC; 1080 } 1081 1082 static void usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, 1083 int interface) 1084 { 1085 struct usb_redir_get_alt_setting_header get_alt; 1086 1087 DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id); 1088 1089 get_alt.interface = interface; 1090 usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt); 1091 usbredirparser_do_write(dev->parser); 1092 p->status = USB_RET_ASYNC; 1093 } 1094 1095 static void usbredir_handle_control(USBDevice *udev, USBPacket *p, 1096 int request, int value, int index, int length, uint8_t *data) 1097 { 1098 USBRedirDevice *dev = USB_REDIRECT(udev); 1099 struct usb_redir_control_packet_header control_packet; 1100 1101 if (usbredir_already_in_flight(dev, p->id)) { 1102 p->status = USB_RET_ASYNC; 1103 return; 1104 } 1105 1106 /* Special cases for certain standard device requests */ 1107 switch (request) { 1108 case DeviceOutRequest | USB_REQ_SET_ADDRESS: 1109 DPRINTF("set address %d\n", value); 1110 dev->dev.addr = value; 1111 return; 1112 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: 1113 usbredir_set_config(dev, p, value & 0xff); 1114 return; 1115 case DeviceRequest | USB_REQ_GET_CONFIGURATION: 1116 usbredir_get_config(dev, p); 1117 return; 1118 case InterfaceOutRequest | USB_REQ_SET_INTERFACE: 1119 usbredir_set_interface(dev, p, index, value); 1120 return; 1121 case InterfaceRequest | USB_REQ_GET_INTERFACE: 1122 usbredir_get_interface(dev, p, index); 1123 return; 1124 } 1125 1126 /* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */ 1127 DPRINTF( 1128 "ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n", 1129 request >> 8, request & 0xff, value, index, length, p->id); 1130 1131 control_packet.request = request & 0xFF; 1132 control_packet.requesttype = request >> 8; 1133 control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; 1134 control_packet.value = value; 1135 control_packet.index = index; 1136 control_packet.length = length; 1137 1138 if (control_packet.requesttype & USB_DIR_IN) { 1139 usbredirparser_send_control_packet(dev->parser, p->id, 1140 &control_packet, NULL, 0); 1141 } else { 1142 usbredir_log_data(dev, "ctrl data out:", data, length); 1143 usbredirparser_send_control_packet(dev->parser, p->id, 1144 &control_packet, data, length); 1145 } 1146 usbredirparser_do_write(dev->parser); 1147 p->status = USB_RET_ASYNC; 1148 } 1149 1150 static int usbredir_alloc_streams(USBDevice *udev, USBEndpoint **eps, 1151 int nr_eps, int streams) 1152 { 1153 USBRedirDevice *dev = USB_REDIRECT(udev); 1154 #if USBREDIR_VERSION >= 0x000700 1155 struct usb_redir_alloc_bulk_streams_header alloc_streams; 1156 int i; 1157 1158 if (!usbredirparser_peer_has_cap(dev->parser, 1159 usb_redir_cap_bulk_streams)) { 1160 ERROR("peer does not support streams\n"); 1161 goto reject; 1162 } 1163 1164 if (streams == 0) { 1165 ERROR("request to allocate 0 streams\n"); 1166 return -1; 1167 } 1168 1169 alloc_streams.no_streams = streams; 1170 alloc_streams.endpoints = 0; 1171 for (i = 0; i < nr_eps; i++) { 1172 alloc_streams.endpoints |= 1 << USBEP2I(eps[i]); 1173 } 1174 usbredirparser_send_alloc_bulk_streams(dev->parser, 0, &alloc_streams); 1175 usbredirparser_do_write(dev->parser); 1176 1177 return 0; 1178 #else 1179 ERROR("usbredir_alloc_streams not implemented\n"); 1180 goto reject; 1181 #endif 1182 reject: 1183 ERROR("streams are not available, disconnecting\n"); 1184 qemu_bh_schedule(dev->device_reject_bh); 1185 return -1; 1186 } 1187 1188 static void usbredir_free_streams(USBDevice *udev, USBEndpoint **eps, 1189 int nr_eps) 1190 { 1191 #if USBREDIR_VERSION >= 0x000700 1192 USBRedirDevice *dev = USB_REDIRECT(udev); 1193 struct usb_redir_free_bulk_streams_header free_streams; 1194 int i; 1195 1196 if (!usbredirparser_peer_has_cap(dev->parser, 1197 usb_redir_cap_bulk_streams)) { 1198 return; 1199 } 1200 1201 free_streams.endpoints = 0; 1202 for (i = 0; i < nr_eps; i++) { 1203 free_streams.endpoints |= 1 << USBEP2I(eps[i]); 1204 } 1205 usbredirparser_send_free_bulk_streams(dev->parser, 0, &free_streams); 1206 usbredirparser_do_write(dev->parser); 1207 #endif 1208 } 1209 1210 /* 1211 * Close events can be triggered by usbredirparser_do_write which gets called 1212 * from within the USBDevice data / control packet callbacks and doing a 1213 * usb_detach from within these callbacks is not a good idea. 1214 * 1215 * So we use a bh handler to take care of close events. 1216 */ 1217 static void usbredir_chardev_close_bh(void *opaque) 1218 { 1219 USBRedirDevice *dev = opaque; 1220 1221 qemu_bh_cancel(dev->device_reject_bh); 1222 usbredir_device_disconnect(dev); 1223 1224 if (dev->parser) { 1225 DPRINTF("destroying usbredirparser\n"); 1226 usbredirparser_destroy(dev->parser); 1227 dev->parser = NULL; 1228 } 1229 if (dev->watch) { 1230 g_source_remove(dev->watch); 1231 dev->watch = 0; 1232 } 1233 } 1234 1235 static void usbredir_create_parser(USBRedirDevice *dev) 1236 { 1237 uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, }; 1238 int flags = 0; 1239 1240 DPRINTF("creating usbredirparser\n"); 1241 1242 dev->parser = usbredirparser_create(); 1243 if (!dev->parser) { 1244 error_report("usbredirparser_create() failed"); 1245 exit(1); 1246 } 1247 dev->parser->priv = dev; 1248 dev->parser->log_func = usbredir_log; 1249 dev->parser->read_func = usbredir_read; 1250 dev->parser->write_func = usbredir_write; 1251 dev->parser->hello_func = usbredir_hello; 1252 dev->parser->device_connect_func = usbredir_device_connect; 1253 dev->parser->device_disconnect_func = usbredir_device_disconnect; 1254 dev->parser->interface_info_func = usbredir_interface_info; 1255 dev->parser->ep_info_func = usbredir_ep_info; 1256 dev->parser->configuration_status_func = usbredir_configuration_status; 1257 dev->parser->alt_setting_status_func = usbredir_alt_setting_status; 1258 dev->parser->iso_stream_status_func = usbredir_iso_stream_status; 1259 dev->parser->interrupt_receiving_status_func = 1260 usbredir_interrupt_receiving_status; 1261 dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; 1262 dev->parser->bulk_receiving_status_func = usbredir_bulk_receiving_status; 1263 dev->parser->control_packet_func = usbredir_control_packet; 1264 dev->parser->bulk_packet_func = usbredir_bulk_packet; 1265 dev->parser->iso_packet_func = usbredir_iso_packet; 1266 dev->parser->interrupt_packet_func = usbredir_interrupt_packet; 1267 dev->parser->buffered_bulk_packet_func = usbredir_buffered_bulk_packet; 1268 dev->read_buf = NULL; 1269 dev->read_buf_size = 0; 1270 1271 usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); 1272 usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); 1273 usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size); 1274 usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids); 1275 usbredirparser_caps_set_cap(caps, usb_redir_cap_32bits_bulk_length); 1276 usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_receiving); 1277 #if USBREDIR_VERSION >= 0x000700 1278 if (dev->enable_streams) { 1279 usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_streams); 1280 } 1281 #endif 1282 1283 if (runstate_check(RUN_STATE_INMIGRATE)) { 1284 flags |= usbredirparser_fl_no_hello; 1285 } 1286 usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, 1287 flags); 1288 usbredirparser_do_write(dev->parser); 1289 } 1290 1291 static void usbredir_reject_device(USBRedirDevice *dev) 1292 { 1293 usbredir_device_disconnect(dev); 1294 if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { 1295 usbredirparser_send_filter_reject(dev->parser); 1296 usbredirparser_do_write(dev->parser); 1297 } 1298 } 1299 1300 /* 1301 * We may need to reject the device when the hcd calls alloc_streams, doing 1302 * an usb_detach from within a hcd call is not a good idea, hence this bh. 1303 */ 1304 static void usbredir_device_reject_bh(void *opaque) 1305 { 1306 USBRedirDevice *dev = opaque; 1307 1308 usbredir_reject_device(dev); 1309 } 1310 1311 static void usbredir_do_attach(void *opaque) 1312 { 1313 USBRedirDevice *dev = opaque; 1314 Error *local_err = NULL; 1315 1316 /* In order to work properly with XHCI controllers we need these caps */ 1317 if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !( 1318 usbredirparser_peer_has_cap(dev->parser, 1319 usb_redir_cap_ep_info_max_packet_size) && 1320 usbredirparser_peer_has_cap(dev->parser, 1321 usb_redir_cap_32bits_bulk_length) && 1322 usbredirparser_peer_has_cap(dev->parser, 1323 usb_redir_cap_64bits_ids))) { 1324 ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n"); 1325 usbredir_reject_device(dev); 1326 return; 1327 } 1328 1329 usb_device_attach(&dev->dev, &local_err); 1330 if (local_err) { 1331 error_report_err(local_err); 1332 WARNING("rejecting device due to speed mismatch\n"); 1333 usbredir_reject_device(dev); 1334 } 1335 } 1336 1337 /* 1338 * chardev callbacks 1339 */ 1340 1341 static int usbredir_chardev_can_read(void *opaque) 1342 { 1343 USBRedirDevice *dev = opaque; 1344 1345 if (!dev->parser) { 1346 WARNING("chardev_can_read called on non open chardev!\n"); 1347 return 0; 1348 } 1349 1350 /* Don't read new data from the chardev until our state is fully synced */ 1351 if (!runstate_check(RUN_STATE_RUNNING)) { 1352 return 0; 1353 } 1354 1355 /* usbredir_parser_do_read will consume *all* data we give it */ 1356 return 1 * MiB; 1357 } 1358 1359 static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) 1360 { 1361 USBRedirDevice *dev = opaque; 1362 1363 /* No recursion allowed! */ 1364 assert(dev->read_buf == NULL); 1365 1366 dev->read_buf = buf; 1367 dev->read_buf_size = size; 1368 1369 usbredirparser_do_read(dev->parser); 1370 /* Send any acks, etc. which may be queued now */ 1371 usbredirparser_do_write(dev->parser); 1372 } 1373 1374 static void usbredir_chardev_event(void *opaque, QEMUChrEvent event) 1375 { 1376 USBRedirDevice *dev = opaque; 1377 1378 switch (event) { 1379 case CHR_EVENT_OPENED: 1380 DPRINTF("chardev open\n"); 1381 /* Make sure any pending closes are handled (no-op if none pending) */ 1382 usbredir_chardev_close_bh(dev); 1383 qemu_bh_cancel(dev->chardev_close_bh); 1384 usbredir_create_parser(dev); 1385 break; 1386 case CHR_EVENT_CLOSED: 1387 DPRINTF("chardev close\n"); 1388 qemu_bh_schedule(dev->chardev_close_bh); 1389 break; 1390 case CHR_EVENT_BREAK: 1391 case CHR_EVENT_MUX_IN: 1392 case CHR_EVENT_MUX_OUT: 1393 /* Ignore */ 1394 break; 1395 } 1396 } 1397 1398 /* 1399 * init + destroy 1400 */ 1401 1402 static void usbredir_vm_state_change(void *priv, bool running, RunState state) 1403 { 1404 USBRedirDevice *dev = priv; 1405 1406 if (state == RUN_STATE_RUNNING && dev->parser != NULL) { 1407 usbredirparser_do_write(dev->parser); /* Flush any pending writes */ 1408 } 1409 } 1410 1411 static void usbredir_init_endpoints(USBRedirDevice *dev) 1412 { 1413 int i; 1414 1415 usb_ep_init(&dev->dev); 1416 memset(dev->endpoint, 0, sizeof(dev->endpoint)); 1417 for (i = 0; i < MAX_ENDPOINTS; i++) { 1418 dev->endpoint[i].dev = dev; 1419 QTAILQ_INIT(&dev->endpoint[i].bufpq); 1420 } 1421 } 1422 1423 static void usbredir_realize(USBDevice *udev, Error **errp) 1424 { 1425 USBRedirDevice *dev = USB_REDIRECT(udev); 1426 int i; 1427 1428 if (!qemu_chr_fe_backend_connected(&dev->cs)) { 1429 error_setg(errp, QERR_MISSING_PARAMETER, "chardev"); 1430 return; 1431 } 1432 1433 if (dev->filter_str) { 1434 i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", 1435 &dev->filter_rules, 1436 &dev->filter_rules_count); 1437 if (i) { 1438 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "filter", 1439 "a usb device filter string"); 1440 return; 1441 } 1442 } 1443 1444 dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev); 1445 dev->device_reject_bh = qemu_bh_new(usbredir_device_reject_bh, dev); 1446 dev->attach_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, usbredir_do_attach, dev); 1447 1448 packet_id_queue_init(&dev->cancelled, dev, "cancelled"); 1449 packet_id_queue_init(&dev->already_in_flight, dev, "already-in-flight"); 1450 usbredir_init_endpoints(dev); 1451 1452 /* We'll do the attach once we receive the speed from the usb-host */ 1453 udev->auto_attach = 0; 1454 1455 /* Will be cleared during setup when we find conflicts */ 1456 dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; 1457 1458 /* Let the backend know we are ready */ 1459 qemu_chr_fe_set_handlers(&dev->cs, usbredir_chardev_can_read, 1460 usbredir_chardev_read, usbredir_chardev_event, 1461 NULL, dev, NULL, true); 1462 1463 dev->vmstate = 1464 qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); 1465 } 1466 1467 static void usbredir_cleanup_device_queues(USBRedirDevice *dev) 1468 { 1469 int i; 1470 1471 packet_id_queue_empty(&dev->cancelled); 1472 packet_id_queue_empty(&dev->already_in_flight); 1473 for (i = 0; i < MAX_ENDPOINTS; i++) { 1474 usbredir_free_bufpq(dev, I2EP(i)); 1475 } 1476 } 1477 1478 static void usbredir_unrealize(USBDevice *udev) 1479 { 1480 USBRedirDevice *dev = USB_REDIRECT(udev); 1481 1482 qemu_chr_fe_deinit(&dev->cs, true); 1483 1484 /* Note must be done after qemu_chr_close, as that causes a close event */ 1485 qemu_bh_delete(dev->chardev_close_bh); 1486 qemu_bh_delete(dev->device_reject_bh); 1487 1488 timer_free(dev->attach_timer); 1489 1490 usbredir_cleanup_device_queues(dev); 1491 1492 if (dev->parser) { 1493 usbredirparser_destroy(dev->parser); 1494 } 1495 if (dev->watch) { 1496 g_source_remove(dev->watch); 1497 } 1498 1499 free(dev->filter_rules); 1500 qemu_del_vm_change_state_handler(dev->vmstate); 1501 } 1502 1503 static int usbredir_check_filter(USBRedirDevice *dev) 1504 { 1505 if (dev->interface_info.interface_count == NO_INTERFACE_INFO) { 1506 ERROR("No interface info for device\n"); 1507 goto error; 1508 } 1509 1510 if (dev->filter_rules) { 1511 if (!usbredirparser_peer_has_cap(dev->parser, 1512 usb_redir_cap_connect_device_version)) { 1513 ERROR("Device filter specified and peer does not have the " 1514 "connect_device_version capability\n"); 1515 goto error; 1516 } 1517 1518 if (usbredirfilter_check( 1519 dev->filter_rules, 1520 dev->filter_rules_count, 1521 dev->device_info.device_class, 1522 dev->device_info.device_subclass, 1523 dev->device_info.device_protocol, 1524 dev->interface_info.interface_class, 1525 dev->interface_info.interface_subclass, 1526 dev->interface_info.interface_protocol, 1527 dev->interface_info.interface_count, 1528 dev->device_info.vendor_id, 1529 dev->device_info.product_id, 1530 dev->device_info.device_version_bcd, 1531 0) != 0) { 1532 goto error; 1533 } 1534 } 1535 1536 return 0; 1537 1538 error: 1539 usbredir_reject_device(dev); 1540 return -1; 1541 } 1542 1543 static void usbredir_check_bulk_receiving(USBRedirDevice *dev) 1544 { 1545 int i, j, quirks; 1546 1547 if (!usbredirparser_peer_has_cap(dev->parser, 1548 usb_redir_cap_bulk_receiving)) { 1549 return; 1550 } 1551 1552 for (i = EP2I(USB_DIR_IN); i < MAX_ENDPOINTS; i++) { 1553 dev->endpoint[i].bulk_receiving_enabled = 0; 1554 } 1555 1556 if (dev->interface_info.interface_count == NO_INTERFACE_INFO) { 1557 return; 1558 } 1559 1560 for (i = 0; i < dev->interface_info.interface_count; i++) { 1561 quirks = usb_get_quirks(dev->device_info.vendor_id, 1562 dev->device_info.product_id, 1563 dev->interface_info.interface_class[i], 1564 dev->interface_info.interface_subclass[i], 1565 dev->interface_info.interface_protocol[i]); 1566 if (!(quirks & USB_QUIRK_BUFFER_BULK_IN)) { 1567 continue; 1568 } 1569 if (quirks & USB_QUIRK_IS_FTDI) { 1570 dev->buffered_bulk_in_complete = 1571 usbredir_buffered_bulk_in_complete_ftdi; 1572 } else { 1573 dev->buffered_bulk_in_complete = 1574 usbredir_buffered_bulk_in_complete_raw; 1575 } 1576 1577 for (j = EP2I(USB_DIR_IN); j < MAX_ENDPOINTS; j++) { 1578 if (dev->endpoint[j].interface == 1579 dev->interface_info.interface[i] && 1580 dev->endpoint[j].type == USB_ENDPOINT_XFER_BULK && 1581 dev->endpoint[j].max_packet_size != 0) { 1582 dev->endpoint[j].bulk_receiving_enabled = 1; 1583 /* 1584 * With buffering pipelining is not necessary. Also packet 1585 * combining and bulk in buffering don't play nice together! 1586 */ 1587 I2USBEP(dev, j)->pipeline = false; 1588 break; /* Only buffer for the first ep of each intf */ 1589 } 1590 } 1591 } 1592 } 1593 1594 /* 1595 * usbredirparser packet complete callbacks 1596 */ 1597 1598 static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, 1599 int status) 1600 { 1601 switch (status) { 1602 case usb_redir_success: 1603 p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ 1604 break; 1605 case usb_redir_stall: 1606 p->status = USB_RET_STALL; 1607 break; 1608 case usb_redir_cancelled: 1609 /* 1610 * When the usbredir-host unredirects a device, it will report a status 1611 * of cancelled for all pending packets, followed by a disconnect msg. 1612 */ 1613 p->status = USB_RET_IOERROR; 1614 break; 1615 case usb_redir_inval: 1616 WARNING("got invalid param error from usb-host?\n"); 1617 p->status = USB_RET_IOERROR; 1618 break; 1619 case usb_redir_babble: 1620 p->status = USB_RET_BABBLE; 1621 break; 1622 case usb_redir_ioerror: 1623 case usb_redir_timeout: 1624 default: 1625 p->status = USB_RET_IOERROR; 1626 } 1627 } 1628 1629 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h) 1630 { 1631 USBRedirDevice *dev = priv; 1632 1633 /* Try to send the filter info now that we've the usb-host's caps */ 1634 if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter) && 1635 dev->filter_rules) { 1636 usbredirparser_send_filter_filter(dev->parser, dev->filter_rules, 1637 dev->filter_rules_count); 1638 usbredirparser_do_write(dev->parser); 1639 } 1640 } 1641 1642 static void usbredir_device_connect(void *priv, 1643 struct usb_redir_device_connect_header *device_connect) 1644 { 1645 USBRedirDevice *dev = priv; 1646 const char *speed; 1647 1648 if (timer_pending(dev->attach_timer) || dev->dev.attached) { 1649 ERROR("Received device connect while already connected\n"); 1650 return; 1651 } 1652 1653 switch (device_connect->speed) { 1654 case usb_redir_speed_low: 1655 speed = "low speed"; 1656 dev->dev.speed = USB_SPEED_LOW; 1657 dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL; 1658 dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; 1659 break; 1660 case usb_redir_speed_full: 1661 speed = "full speed"; 1662 dev->dev.speed = USB_SPEED_FULL; 1663 dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; 1664 break; 1665 case usb_redir_speed_high: 1666 speed = "high speed"; 1667 dev->dev.speed = USB_SPEED_HIGH; 1668 break; 1669 case usb_redir_speed_super: 1670 speed = "super speed"; 1671 dev->dev.speed = USB_SPEED_SUPER; 1672 break; 1673 default: 1674 speed = "unknown speed"; 1675 dev->dev.speed = USB_SPEED_FULL; 1676 } 1677 1678 if (usbredirparser_peer_has_cap(dev->parser, 1679 usb_redir_cap_connect_device_version)) { 1680 INFO("attaching %s device %04x:%04x version %d.%d class %02x\n", 1681 speed, device_connect->vendor_id, device_connect->product_id, 1682 ((device_connect->device_version_bcd & 0xf000) >> 12) * 10 + 1683 ((device_connect->device_version_bcd & 0x0f00) >> 8), 1684 ((device_connect->device_version_bcd & 0x00f0) >> 4) * 10 + 1685 ((device_connect->device_version_bcd & 0x000f) >> 0), 1686 device_connect->device_class); 1687 } else { 1688 INFO("attaching %s device %04x:%04x class %02x\n", speed, 1689 device_connect->vendor_id, device_connect->product_id, 1690 device_connect->device_class); 1691 } 1692 1693 dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; 1694 dev->device_info = *device_connect; 1695 1696 if (usbredir_check_filter(dev)) { 1697 WARNING("Device %04x:%04x rejected by device filter, not attaching\n", 1698 device_connect->vendor_id, device_connect->product_id); 1699 return; 1700 } 1701 1702 usbredir_check_bulk_receiving(dev); 1703 timer_mod(dev->attach_timer, dev->next_attach_time); 1704 } 1705 1706 static void usbredir_device_disconnect(void *priv) 1707 { 1708 USBRedirDevice *dev = priv; 1709 1710 /* Stop any pending attaches */ 1711 timer_del(dev->attach_timer); 1712 1713 if (dev->dev.attached) { 1714 DPRINTF("detaching device\n"); 1715 usb_device_detach(&dev->dev); 1716 /* 1717 * Delay next usb device attach to give the guest a chance to see 1718 * see the detach / attach in case of quick close / open succession 1719 */ 1720 dev->next_attach_time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 200; 1721 } 1722 1723 /* Reset state so that the next dev connected starts with a clean slate */ 1724 usbredir_cleanup_device_queues(dev); 1725 usbredir_init_endpoints(dev); 1726 dev->interface_info.interface_count = NO_INTERFACE_INFO; 1727 dev->dev.addr = 0; 1728 dev->dev.speed = 0; 1729 dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; 1730 } 1731 1732 static void usbredir_interface_info(void *priv, 1733 struct usb_redir_interface_info_header *interface_info) 1734 { 1735 USBRedirDevice *dev = priv; 1736 1737 dev->interface_info = *interface_info; 1738 1739 /* 1740 * If we receive interface info after the device has already been 1741 * connected (ie on a set_config), re-check interface dependent things. 1742 */ 1743 if (timer_pending(dev->attach_timer) || dev->dev.attached) { 1744 usbredir_check_bulk_receiving(dev); 1745 if (usbredir_check_filter(dev)) { 1746 ERROR("Device no longer matches filter after interface info " 1747 "change, disconnecting!\n"); 1748 } 1749 } 1750 } 1751 1752 static void usbredir_mark_speed_incompatible(USBRedirDevice *dev, int speed) 1753 { 1754 dev->compatible_speedmask &= ~(1 << speed); 1755 dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; 1756 } 1757 1758 static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep) 1759 { 1760 if (uep->type != USB_ENDPOINT_XFER_BULK) { 1761 return; 1762 } 1763 if (uep->pid == USB_TOKEN_OUT) { 1764 uep->pipeline = true; 1765 } 1766 if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 && 1767 usbredirparser_peer_has_cap(dev->parser, 1768 usb_redir_cap_32bits_bulk_length)) { 1769 uep->pipeline = true; 1770 } 1771 } 1772 1773 static void usbredir_setup_usb_eps(USBRedirDevice *dev) 1774 { 1775 struct USBEndpoint *usb_ep; 1776 int i; 1777 1778 for (i = 0; i < MAX_ENDPOINTS; i++) { 1779 usb_ep = I2USBEP(dev, i); 1780 usb_ep->type = dev->endpoint[i].type; 1781 usb_ep->ifnum = dev->endpoint[i].interface; 1782 usb_ep->max_packet_size = dev->endpoint[i].max_packet_size; 1783 usb_ep->max_streams = dev->endpoint[i].max_streams; 1784 usbredir_set_pipeline(dev, usb_ep); 1785 } 1786 } 1787 1788 static void usbredir_ep_info(void *priv, 1789 struct usb_redir_ep_info_header *ep_info) 1790 { 1791 USBRedirDevice *dev = priv; 1792 int i; 1793 1794 assert(dev != NULL); 1795 for (i = 0; i < MAX_ENDPOINTS; i++) { 1796 dev->endpoint[i].type = ep_info->type[i]; 1797 dev->endpoint[i].interval = ep_info->interval[i]; 1798 dev->endpoint[i].interface = ep_info->interface[i]; 1799 if (usbredirparser_peer_has_cap(dev->parser, 1800 usb_redir_cap_ep_info_max_packet_size)) { 1801 dev->endpoint[i].max_packet_size = ep_info->max_packet_size[i]; 1802 } 1803 #if USBREDIR_VERSION >= 0x000700 1804 if (usbredirparser_peer_has_cap(dev->parser, 1805 usb_redir_cap_bulk_streams)) { 1806 dev->endpoint[i].max_streams = ep_info->max_streams[i]; 1807 } 1808 #endif 1809 switch (dev->endpoint[i].type) { 1810 case usb_redir_type_invalid: 1811 break; 1812 case usb_redir_type_iso: 1813 usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); 1814 usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); 1815 /* Fall through */ 1816 case usb_redir_type_interrupt: 1817 if (!usbredirparser_peer_has_cap(dev->parser, 1818 usb_redir_cap_ep_info_max_packet_size) || 1819 ep_info->max_packet_size[i] > 64) { 1820 usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); 1821 } 1822 if (!usbredirparser_peer_has_cap(dev->parser, 1823 usb_redir_cap_ep_info_max_packet_size) || 1824 ep_info->max_packet_size[i] > 1024) { 1825 usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); 1826 } 1827 if (dev->endpoint[i].interval == 0) { 1828 ERROR("Received 0 interval for isoc or irq endpoint\n"); 1829 usbredir_reject_device(dev); 1830 return; 1831 } 1832 /* Fall through */ 1833 case usb_redir_type_control: 1834 case usb_redir_type_bulk: 1835 DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i), 1836 dev->endpoint[i].type, dev->endpoint[i].interface); 1837 break; 1838 default: 1839 ERROR("Received invalid endpoint type\n"); 1840 usbredir_reject_device(dev); 1841 return; 1842 } 1843 } 1844 /* The new ep info may have caused a speed incompatibility, recheck */ 1845 if (dev->dev.attached && 1846 !(dev->dev.port->speedmask & dev->dev.speedmask)) { 1847 ERROR("Device no longer matches speed after endpoint info change, " 1848 "disconnecting!\n"); 1849 usbredir_reject_device(dev); 1850 return; 1851 } 1852 usbredir_setup_usb_eps(dev); 1853 usbredir_check_bulk_receiving(dev); 1854 } 1855 1856 static void usbredir_configuration_status(void *priv, uint64_t id, 1857 struct usb_redir_configuration_status_header *config_status) 1858 { 1859 USBRedirDevice *dev = priv; 1860 USBPacket *p; 1861 1862 DPRINTF("set config status %d config %d id %"PRIu64"\n", 1863 config_status->status, config_status->configuration, id); 1864 1865 p = usbredir_find_packet_by_id(dev, 0, id); 1866 if (p) { 1867 if (dev->dev.setup_buf[0] & USB_DIR_IN) { 1868 dev->dev.data_buf[0] = config_status->configuration; 1869 p->actual_length = 1; 1870 } 1871 usbredir_handle_status(dev, p, config_status->status); 1872 usb_generic_async_ctrl_complete(&dev->dev, p); 1873 } 1874 } 1875 1876 static void usbredir_alt_setting_status(void *priv, uint64_t id, 1877 struct usb_redir_alt_setting_status_header *alt_setting_status) 1878 { 1879 USBRedirDevice *dev = priv; 1880 USBPacket *p; 1881 1882 DPRINTF("alt status %d intf %d alt %d id: %"PRIu64"\n", 1883 alt_setting_status->status, alt_setting_status->interface, 1884 alt_setting_status->alt, id); 1885 1886 p = usbredir_find_packet_by_id(dev, 0, id); 1887 if (p) { 1888 if (dev->dev.setup_buf[0] & USB_DIR_IN) { 1889 dev->dev.data_buf[0] = alt_setting_status->alt; 1890 p->actual_length = 1; 1891 } 1892 usbredir_handle_status(dev, p, alt_setting_status->status); 1893 usb_generic_async_ctrl_complete(&dev->dev, p); 1894 } 1895 } 1896 1897 static void usbredir_iso_stream_status(void *priv, uint64_t id, 1898 struct usb_redir_iso_stream_status_header *iso_stream_status) 1899 { 1900 USBRedirDevice *dev = priv; 1901 uint8_t ep = iso_stream_status->endpoint; 1902 1903 DPRINTF("iso status %d ep %02X id %"PRIu64"\n", iso_stream_status->status, 1904 ep, id); 1905 1906 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) { 1907 return; 1908 } 1909 1910 dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; 1911 if (iso_stream_status->status == usb_redir_stall) { 1912 DPRINTF("iso stream stopped by peer ep %02X\n", ep); 1913 dev->endpoint[EP2I(ep)].iso_started = 0; 1914 } 1915 } 1916 1917 static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, 1918 struct usb_redir_interrupt_receiving_status_header 1919 *interrupt_receiving_status) 1920 { 1921 USBRedirDevice *dev = priv; 1922 uint8_t ep = interrupt_receiving_status->endpoint; 1923 1924 DPRINTF("interrupt recv status %d ep %02X id %"PRIu64"\n", 1925 interrupt_receiving_status->status, ep, id); 1926 1927 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) { 1928 return; 1929 } 1930 1931 dev->endpoint[EP2I(ep)].interrupt_error = 1932 interrupt_receiving_status->status; 1933 if (interrupt_receiving_status->status == usb_redir_stall) { 1934 DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep); 1935 dev->endpoint[EP2I(ep)].interrupt_started = 0; 1936 } 1937 } 1938 1939 static void usbredir_bulk_streams_status(void *priv, uint64_t id, 1940 struct usb_redir_bulk_streams_status_header *bulk_streams_status) 1941 { 1942 #if USBREDIR_VERSION >= 0x000700 1943 USBRedirDevice *dev = priv; 1944 1945 if (bulk_streams_status->status == usb_redir_success) { 1946 DPRINTF("bulk streams status %d eps %08x\n", 1947 bulk_streams_status->status, bulk_streams_status->endpoints); 1948 } else { 1949 ERROR("bulk streams %s failed status %d eps %08x\n", 1950 (bulk_streams_status->no_streams == 0) ? "free" : "alloc", 1951 bulk_streams_status->status, bulk_streams_status->endpoints); 1952 ERROR("usb-redir-host does not provide streams, disconnecting\n"); 1953 usbredir_reject_device(dev); 1954 } 1955 #endif 1956 } 1957 1958 static void usbredir_bulk_receiving_status(void *priv, uint64_t id, 1959 struct usb_redir_bulk_receiving_status_header *bulk_receiving_status) 1960 { 1961 USBRedirDevice *dev = priv; 1962 uint8_t ep = bulk_receiving_status->endpoint; 1963 1964 DPRINTF("bulk recv status %d ep %02X id %"PRIu64"\n", 1965 bulk_receiving_status->status, ep, id); 1966 1967 if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].bulk_receiving_started) { 1968 return; 1969 } 1970 1971 if (bulk_receiving_status->status == usb_redir_stall) { 1972 DPRINTF("bulk receiving stopped by peer ep %02X\n", ep); 1973 dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; 1974 } 1975 } 1976 1977 static void usbredir_control_packet(void *priv, uint64_t id, 1978 struct usb_redir_control_packet_header *control_packet, 1979 uint8_t *data, int data_len) 1980 { 1981 USBRedirDevice *dev = priv; 1982 USBPacket *p; 1983 int len = control_packet->length; 1984 1985 DPRINTF("ctrl-in status %d len %d id %"PRIu64"\n", control_packet->status, 1986 len, id); 1987 1988 /* Fix up USB-3 ep0 maxpacket size to allow superspeed connected devices 1989 * to work redirected to a not superspeed capable hcd */ 1990 if (dev->dev.speed == USB_SPEED_SUPER && 1991 !((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER)) && 1992 control_packet->requesttype == 0x80 && 1993 control_packet->request == 6 && 1994 control_packet->value == 0x100 && control_packet->index == 0 && 1995 data_len >= 18 && data[7] == 9) { 1996 data[7] = 64; 1997 } 1998 1999 p = usbredir_find_packet_by_id(dev, 0, id); 2000 if (p) { 2001 usbredir_handle_status(dev, p, control_packet->status); 2002 if (data_len > 0) { 2003 usbredir_log_data(dev, "ctrl data in:", data, data_len); 2004 if (data_len > sizeof(dev->dev.data_buf)) { 2005 ERROR("ctrl buffer too small (%d > %zu)\n", 2006 data_len, sizeof(dev->dev.data_buf)); 2007 p->status = USB_RET_STALL; 2008 data_len = len = sizeof(dev->dev.data_buf); 2009 } 2010 memcpy(dev->dev.data_buf, data, data_len); 2011 } 2012 p->actual_length = len; 2013 /* 2014 * If this is GET_DESCRIPTOR request for configuration descriptor, 2015 * remove 'remote wakeup' flag from it to prevent idle power down 2016 * in Windows guest 2017 */ 2018 if (dev->suppress_remote_wake && 2019 control_packet->requesttype == USB_DIR_IN && 2020 control_packet->request == USB_REQ_GET_DESCRIPTOR && 2021 control_packet->value == (USB_DT_CONFIG << 8) && 2022 control_packet->index == 0 && 2023 /* bmAttributes field of config descriptor */ 2024 len > 7 && (dev->dev.data_buf[7] & USB_CFG_ATT_WAKEUP)) { 2025 DPRINTF("Removed remote wake %04X:%04X\n", 2026 dev->device_info.vendor_id, 2027 dev->device_info.product_id); 2028 dev->dev.data_buf[7] &= ~USB_CFG_ATT_WAKEUP; 2029 } 2030 usb_generic_async_ctrl_complete(&dev->dev, p); 2031 } 2032 free(data); 2033 } 2034 2035 static void usbredir_bulk_packet(void *priv, uint64_t id, 2036 struct usb_redir_bulk_packet_header *bulk_packet, 2037 uint8_t *data, int data_len) 2038 { 2039 USBRedirDevice *dev = priv; 2040 uint8_t ep = bulk_packet->endpoint; 2041 int len = (bulk_packet->length_high << 16) | bulk_packet->length; 2042 USBPacket *p; 2043 2044 DPRINTF("bulk-in status %d ep %02X stream %u len %d id %"PRIu64"\n", 2045 bulk_packet->status, ep, bulk_packet->stream_id, len, id); 2046 2047 p = usbredir_find_packet_by_id(dev, ep, id); 2048 if (p) { 2049 size_t size = usb_packet_size(p); 2050 usbredir_handle_status(dev, p, bulk_packet->status); 2051 if (data_len > 0) { 2052 usbredir_log_data(dev, "bulk data in:", data, data_len); 2053 if (data_len > size) { 2054 ERROR("bulk got more data then requested (%d > %zd)\n", 2055 data_len, p->iov.size); 2056 p->status = USB_RET_BABBLE; 2057 data_len = len = size; 2058 } 2059 usb_packet_copy(p, data, data_len); 2060 } 2061 p->actual_length = len; 2062 if (p->pid == USB_TOKEN_IN && p->ep->pipeline) { 2063 usb_combined_input_packet_complete(&dev->dev, p); 2064 } else { 2065 usb_packet_complete(&dev->dev, p); 2066 } 2067 } 2068 free(data); 2069 } 2070 2071 static void usbredir_iso_packet(void *priv, uint64_t id, 2072 struct usb_redir_iso_packet_header *iso_packet, 2073 uint8_t *data, int data_len) 2074 { 2075 USBRedirDevice *dev = priv; 2076 uint8_t ep = iso_packet->endpoint; 2077 2078 DPRINTF2("iso-in status %d ep %02X len %d id %"PRIu64"\n", 2079 iso_packet->status, ep, data_len, id); 2080 2081 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) { 2082 ERROR("received iso packet for non iso endpoint %02X\n", ep); 2083 free(data); 2084 return; 2085 } 2086 2087 if (dev->endpoint[EP2I(ep)].iso_started == 0) { 2088 DPRINTF("received iso packet for non started stream ep %02X\n", ep); 2089 free(data); 2090 return; 2091 } 2092 2093 /* bufp_alloc also adds the packet to the ep queue */ 2094 bufp_alloc(dev, data, data_len, iso_packet->status, ep, data); 2095 } 2096 2097 static void usbredir_interrupt_packet(void *priv, uint64_t id, 2098 struct usb_redir_interrupt_packet_header *interrupt_packet, 2099 uint8_t *data, int data_len) 2100 { 2101 USBRedirDevice *dev = priv; 2102 uint8_t ep = interrupt_packet->endpoint; 2103 2104 DPRINTF("interrupt-in status %d ep %02X len %d id %"PRIu64"\n", 2105 interrupt_packet->status, ep, data_len, id); 2106 2107 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) { 2108 ERROR("received int packet for non interrupt endpoint %02X\n", ep); 2109 free(data); 2110 return; 2111 } 2112 2113 if (ep & USB_DIR_IN) { 2114 if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { 2115 DPRINTF("received int packet while not started ep %02X\n", ep); 2116 free(data); 2117 return; 2118 } 2119 2120 /* bufp_alloc also adds the packet to the ep queue */ 2121 bufp_alloc(dev, data, data_len, interrupt_packet->status, ep, data); 2122 2123 /* insufficient data solved with USB_RET_NAK */ 2124 usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f), 0); 2125 } else { 2126 /* 2127 * We report output interrupt packets as completed directly upon 2128 * submission, so all we can do here if one failed is warn. 2129 */ 2130 if (interrupt_packet->status) { 2131 WARNING("interrupt output failed status %d ep %02X id %"PRIu64"\n", 2132 interrupt_packet->status, ep, id); 2133 } 2134 } 2135 } 2136 2137 static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, 2138 struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, 2139 uint8_t *data, int data_len) 2140 { 2141 USBRedirDevice *dev = priv; 2142 uint8_t status, ep = buffered_bulk_packet->endpoint; 2143 void *free_on_destroy; 2144 int i, len; 2145 2146 DPRINTF("buffered-bulk-in status %d ep %02X len %d id %"PRIu64"\n", 2147 buffered_bulk_packet->status, ep, data_len, id); 2148 2149 if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_BULK) { 2150 ERROR("received buffered-bulk packet for non bulk ep %02X\n", ep); 2151 free(data); 2152 return; 2153 } 2154 2155 if (dev->endpoint[EP2I(ep)].bulk_receiving_started == 0) { 2156 DPRINTF("received buffered-bulk packet on not started ep %02X\n", ep); 2157 free(data); 2158 return; 2159 } 2160 2161 /* Data must be in maxp chunks for buffered_bulk_add_*_data_to_packet */ 2162 len = dev->endpoint[EP2I(ep)].max_packet_size; 2163 status = usb_redir_success; 2164 free_on_destroy = NULL; 2165 for (i = 0; i < data_len; i += len) { 2166 int r; 2167 if (len >= (data_len - i)) { 2168 len = data_len - i; 2169 status = buffered_bulk_packet->status; 2170 free_on_destroy = data; 2171 } 2172 /* bufp_alloc also adds the packet to the ep queue */ 2173 r = bufp_alloc(dev, data + i, len, status, ep, free_on_destroy); 2174 if (r) { 2175 break; 2176 } 2177 } 2178 2179 if (dev->endpoint[EP2I(ep)].pending_async_packet) { 2180 USBPacket *p = dev->endpoint[EP2I(ep)].pending_async_packet; 2181 dev->endpoint[EP2I(ep)].pending_async_packet = NULL; 2182 usbredir_buffered_bulk_in_complete(dev, p, ep); 2183 usb_packet_complete(&dev->dev, p); 2184 } 2185 } 2186 2187 /* 2188 * Migration code 2189 */ 2190 2191 static int usbredir_pre_save(void *priv) 2192 { 2193 USBRedirDevice *dev = priv; 2194 2195 usbredir_fill_already_in_flight(dev); 2196 2197 return 0; 2198 } 2199 2200 static int usbredir_post_load(void *priv, int version_id) 2201 { 2202 USBRedirDevice *dev = priv; 2203 2204 if (dev == NULL || dev->parser == NULL) { 2205 return 0; 2206 } 2207 2208 switch (dev->device_info.speed) { 2209 case usb_redir_speed_low: 2210 dev->dev.speed = USB_SPEED_LOW; 2211 break; 2212 case usb_redir_speed_full: 2213 dev->dev.speed = USB_SPEED_FULL; 2214 break; 2215 case usb_redir_speed_high: 2216 dev->dev.speed = USB_SPEED_HIGH; 2217 break; 2218 case usb_redir_speed_super: 2219 dev->dev.speed = USB_SPEED_SUPER; 2220 break; 2221 default: 2222 dev->dev.speed = USB_SPEED_FULL; 2223 } 2224 dev->dev.speedmask = (1 << dev->dev.speed); 2225 2226 usbredir_setup_usb_eps(dev); 2227 usbredir_check_bulk_receiving(dev); 2228 2229 return 0; 2230 } 2231 2232 /* For usbredirparser migration */ 2233 static int usbredir_put_parser(QEMUFile *f, void *priv, size_t unused, 2234 const VMStateField *field, JSONWriter *vmdesc) 2235 { 2236 USBRedirDevice *dev = priv; 2237 uint8_t *data; 2238 int len; 2239 2240 if (dev->parser == NULL) { 2241 qemu_put_be32(f, 0); 2242 return 0; 2243 } 2244 2245 usbredirparser_serialize(dev->parser, &data, &len); 2246 if (!data) { 2247 error_report("usbredirparser_serialize failed"); 2248 exit(1); 2249 } 2250 2251 qemu_put_be32(f, len); 2252 qemu_put_buffer(f, data, len); 2253 2254 free(data); 2255 2256 return 0; 2257 } 2258 2259 static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused, 2260 const VMStateField *field) 2261 { 2262 USBRedirDevice *dev = priv; 2263 uint8_t *data; 2264 int len, ret; 2265 2266 len = qemu_get_be32(f); 2267 if (len == 0) { 2268 return 0; 2269 } 2270 2271 /* 2272 * If our chardev is not open already at this point the usbredir connection 2273 * has been broken (non seamless migration, or restore from disk). 2274 * 2275 * In this case create a temporary parser to receive the migration data, 2276 * and schedule the close_bh to report the device as disconnected to the 2277 * guest and to destroy the parser again. 2278 */ 2279 if (dev->parser == NULL) { 2280 WARNING("usb-redir connection broken during migration\n"); 2281 usbredir_create_parser(dev); 2282 qemu_bh_schedule(dev->chardev_close_bh); 2283 } 2284 2285 data = g_malloc(len); 2286 qemu_get_buffer(f, data, len); 2287 2288 ret = usbredirparser_unserialize(dev->parser, data, len); 2289 2290 g_free(data); 2291 2292 return ret; 2293 } 2294 2295 static const VMStateInfo usbredir_parser_vmstate_info = { 2296 .name = "usb-redir-parser", 2297 .put = usbredir_put_parser, 2298 .get = usbredir_get_parser, 2299 }; 2300 2301 2302 /* For buffered packets (iso/irq) queue migration */ 2303 static int usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused, 2304 const VMStateField *field, JSONWriter *vmdesc) 2305 { 2306 struct endp_data *endp = priv; 2307 USBRedirDevice *dev = endp->dev; 2308 struct buf_packet *bufp; 2309 int len, i = 0; 2310 2311 qemu_put_be32(f, endp->bufpq_size); 2312 QTAILQ_FOREACH(bufp, &endp->bufpq, next) { 2313 len = bufp->len - bufp->offset; 2314 DPRINTF("put_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, 2315 len, bufp->status); 2316 qemu_put_be32(f, len); 2317 qemu_put_be32(f, bufp->status); 2318 qemu_put_buffer(f, bufp->data + bufp->offset, len); 2319 i++; 2320 } 2321 assert(i == endp->bufpq_size); 2322 2323 return 0; 2324 } 2325 2326 static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused, 2327 const VMStateField *field) 2328 { 2329 struct endp_data *endp = priv; 2330 USBRedirDevice *dev = endp->dev; 2331 struct buf_packet *bufp; 2332 int i; 2333 2334 endp->bufpq_size = qemu_get_be32(f); 2335 for (i = 0; i < endp->bufpq_size; i++) { 2336 bufp = g_new(struct buf_packet, 1); 2337 bufp->len = qemu_get_be32(f); 2338 bufp->status = qemu_get_be32(f); 2339 bufp->offset = 0; 2340 bufp->data = malloc(bufp->len); /* regular malloc! */ 2341 if (!bufp->data) { 2342 error_report("usbredir_get_bufpq: out of memory"); 2343 exit(1); 2344 } 2345 bufp->free_on_destroy = bufp->data; 2346 qemu_get_buffer(f, bufp->data, bufp->len); 2347 QTAILQ_INSERT_TAIL(&endp->bufpq, bufp, next); 2348 DPRINTF("get_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, 2349 bufp->len, bufp->status); 2350 } 2351 return 0; 2352 } 2353 2354 static const VMStateInfo usbredir_ep_bufpq_vmstate_info = { 2355 .name = "usb-redir-bufpq", 2356 .put = usbredir_put_bufpq, 2357 .get = usbredir_get_bufpq, 2358 }; 2359 2360 2361 /* For endp_data migration */ 2362 static bool usbredir_bulk_receiving_needed(void *priv) 2363 { 2364 struct endp_data *endp = priv; 2365 2366 return endp->bulk_receiving_started; 2367 } 2368 2369 static const VMStateDescription usbredir_bulk_receiving_vmstate = { 2370 .name = "usb-redir-ep/bulk-receiving", 2371 .version_id = 1, 2372 .minimum_version_id = 1, 2373 .needed = usbredir_bulk_receiving_needed, 2374 .fields = (VMStateField[]) { 2375 VMSTATE_UINT8(bulk_receiving_started, struct endp_data), 2376 VMSTATE_END_OF_LIST() 2377 } 2378 }; 2379 2380 static bool usbredir_stream_needed(void *priv) 2381 { 2382 struct endp_data *endp = priv; 2383 2384 return endp->max_streams; 2385 } 2386 2387 static const VMStateDescription usbredir_stream_vmstate = { 2388 .name = "usb-redir-ep/stream-state", 2389 .version_id = 1, 2390 .minimum_version_id = 1, 2391 .needed = usbredir_stream_needed, 2392 .fields = (VMStateField[]) { 2393 VMSTATE_UINT32(max_streams, struct endp_data), 2394 VMSTATE_END_OF_LIST() 2395 } 2396 }; 2397 2398 static const VMStateDescription usbredir_ep_vmstate = { 2399 .name = "usb-redir-ep", 2400 .version_id = 1, 2401 .minimum_version_id = 1, 2402 .fields = (VMStateField[]) { 2403 VMSTATE_UINT8(type, struct endp_data), 2404 VMSTATE_UINT8(interval, struct endp_data), 2405 VMSTATE_UINT8(interface, struct endp_data), 2406 VMSTATE_UINT16(max_packet_size, struct endp_data), 2407 VMSTATE_UINT8(iso_started, struct endp_data), 2408 VMSTATE_UINT8(iso_error, struct endp_data), 2409 VMSTATE_UINT8(interrupt_started, struct endp_data), 2410 VMSTATE_UINT8(interrupt_error, struct endp_data), 2411 VMSTATE_UINT8(bufpq_prefilled, struct endp_data), 2412 VMSTATE_UINT8(bufpq_dropping_packets, struct endp_data), 2413 { 2414 .name = "bufpq", 2415 .version_id = 0, 2416 .field_exists = NULL, 2417 .size = 0, 2418 .info = &usbredir_ep_bufpq_vmstate_info, 2419 .flags = VMS_SINGLE, 2420 .offset = 0, 2421 }, 2422 VMSTATE_INT32(bufpq_target_size, struct endp_data), 2423 VMSTATE_END_OF_LIST() 2424 }, 2425 .subsections = (const VMStateDescription*[]) { 2426 &usbredir_bulk_receiving_vmstate, 2427 &usbredir_stream_vmstate, 2428 NULL 2429 } 2430 }; 2431 2432 2433 /* For PacketIdQueue migration */ 2434 static int usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused, 2435 const VMStateField *field, 2436 JSONWriter *vmdesc) 2437 { 2438 struct PacketIdQueue *q = priv; 2439 USBRedirDevice *dev = q->dev; 2440 struct PacketIdQueueEntry *e; 2441 int remain = q->size; 2442 2443 DPRINTF("put_packet_id_q %s size %d\n", q->name, q->size); 2444 qemu_put_be32(f, q->size); 2445 QTAILQ_FOREACH(e, &q->head, next) { 2446 qemu_put_be64(f, e->id); 2447 remain--; 2448 } 2449 assert(remain == 0); 2450 2451 return 0; 2452 } 2453 2454 static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused, 2455 const VMStateField *field) 2456 { 2457 struct PacketIdQueue *q = priv; 2458 USBRedirDevice *dev = q->dev; 2459 int i, size; 2460 uint64_t id; 2461 2462 size = qemu_get_be32(f); 2463 DPRINTF("get_packet_id_q %s size %d\n", q->name, size); 2464 for (i = 0; i < size; i++) { 2465 id = qemu_get_be64(f); 2466 packet_id_queue_add(q, id); 2467 } 2468 assert(q->size == size); 2469 return 0; 2470 } 2471 2472 static const VMStateInfo usbredir_ep_packet_id_q_vmstate_info = { 2473 .name = "usb-redir-packet-id-q", 2474 .put = usbredir_put_packet_id_q, 2475 .get = usbredir_get_packet_id_q, 2476 }; 2477 2478 static const VMStateDescription usbredir_ep_packet_id_queue_vmstate = { 2479 .name = "usb-redir-packet-id-queue", 2480 .version_id = 1, 2481 .minimum_version_id = 1, 2482 .fields = (VMStateField[]) { 2483 { 2484 .name = "queue", 2485 .version_id = 0, 2486 .field_exists = NULL, 2487 .size = 0, 2488 .info = &usbredir_ep_packet_id_q_vmstate_info, 2489 .flags = VMS_SINGLE, 2490 .offset = 0, 2491 }, 2492 VMSTATE_END_OF_LIST() 2493 } 2494 }; 2495 2496 2497 /* For usb_redir_device_connect_header migration */ 2498 static const VMStateDescription usbredir_device_info_vmstate = { 2499 .name = "usb-redir-device-info", 2500 .version_id = 1, 2501 .minimum_version_id = 1, 2502 .fields = (VMStateField[]) { 2503 VMSTATE_UINT8(speed, struct usb_redir_device_connect_header), 2504 VMSTATE_UINT8(device_class, struct usb_redir_device_connect_header), 2505 VMSTATE_UINT8(device_subclass, struct usb_redir_device_connect_header), 2506 VMSTATE_UINT8(device_protocol, struct usb_redir_device_connect_header), 2507 VMSTATE_UINT16(vendor_id, struct usb_redir_device_connect_header), 2508 VMSTATE_UINT16(product_id, struct usb_redir_device_connect_header), 2509 VMSTATE_UINT16(device_version_bcd, 2510 struct usb_redir_device_connect_header), 2511 VMSTATE_END_OF_LIST() 2512 } 2513 }; 2514 2515 2516 /* For usb_redir_interface_info_header migration */ 2517 static const VMStateDescription usbredir_interface_info_vmstate = { 2518 .name = "usb-redir-interface-info", 2519 .version_id = 1, 2520 .minimum_version_id = 1, 2521 .fields = (VMStateField[]) { 2522 VMSTATE_UINT32(interface_count, 2523 struct usb_redir_interface_info_header), 2524 VMSTATE_UINT8_ARRAY(interface, 2525 struct usb_redir_interface_info_header, 32), 2526 VMSTATE_UINT8_ARRAY(interface_class, 2527 struct usb_redir_interface_info_header, 32), 2528 VMSTATE_UINT8_ARRAY(interface_subclass, 2529 struct usb_redir_interface_info_header, 32), 2530 VMSTATE_UINT8_ARRAY(interface_protocol, 2531 struct usb_redir_interface_info_header, 32), 2532 VMSTATE_END_OF_LIST() 2533 } 2534 }; 2535 2536 2537 /* And finally the USBRedirDevice vmstate itself */ 2538 static const VMStateDescription usbredir_vmstate = { 2539 .name = "usb-redir", 2540 .version_id = 1, 2541 .minimum_version_id = 1, 2542 .pre_save = usbredir_pre_save, 2543 .post_load = usbredir_post_load, 2544 .fields = (VMStateField[]) { 2545 VMSTATE_USB_DEVICE(dev, USBRedirDevice), 2546 VMSTATE_TIMER_PTR(attach_timer, USBRedirDevice), 2547 { 2548 .name = "parser", 2549 .version_id = 0, 2550 .field_exists = NULL, 2551 .size = 0, 2552 .info = &usbredir_parser_vmstate_info, 2553 .flags = VMS_SINGLE, 2554 .offset = 0, 2555 }, 2556 VMSTATE_STRUCT_ARRAY(endpoint, USBRedirDevice, MAX_ENDPOINTS, 1, 2557 usbredir_ep_vmstate, struct endp_data), 2558 VMSTATE_STRUCT(cancelled, USBRedirDevice, 1, 2559 usbredir_ep_packet_id_queue_vmstate, 2560 struct PacketIdQueue), 2561 VMSTATE_STRUCT(already_in_flight, USBRedirDevice, 1, 2562 usbredir_ep_packet_id_queue_vmstate, 2563 struct PacketIdQueue), 2564 VMSTATE_STRUCT(device_info, USBRedirDevice, 1, 2565 usbredir_device_info_vmstate, 2566 struct usb_redir_device_connect_header), 2567 VMSTATE_STRUCT(interface_info, USBRedirDevice, 1, 2568 usbredir_interface_info_vmstate, 2569 struct usb_redir_interface_info_header), 2570 VMSTATE_END_OF_LIST() 2571 } 2572 }; 2573 2574 static Property usbredir_properties[] = { 2575 DEFINE_PROP_CHR("chardev", USBRedirDevice, cs), 2576 DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, usbredirparser_warning), 2577 DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str), 2578 DEFINE_PROP_BOOL("streams", USBRedirDevice, enable_streams, true), 2579 DEFINE_PROP_BOOL("suppress-remote-wake", USBRedirDevice, 2580 suppress_remote_wake, true), 2581 DEFINE_PROP_END_OF_LIST(), 2582 }; 2583 2584 static void usbredir_class_initfn(ObjectClass *klass, void *data) 2585 { 2586 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 2587 DeviceClass *dc = DEVICE_CLASS(klass); 2588 2589 uc->realize = usbredir_realize; 2590 uc->product_desc = "USB Redirection Device"; 2591 uc->unrealize = usbredir_unrealize; 2592 uc->cancel_packet = usbredir_cancel_packet; 2593 uc->handle_reset = usbredir_handle_reset; 2594 uc->handle_data = usbredir_handle_data; 2595 uc->handle_control = usbredir_handle_control; 2596 uc->flush_ep_queue = usbredir_flush_ep_queue; 2597 uc->ep_stopped = usbredir_ep_stopped; 2598 uc->alloc_streams = usbredir_alloc_streams; 2599 uc->free_streams = usbredir_free_streams; 2600 dc->vmsd = &usbredir_vmstate; 2601 device_class_set_props(dc, usbredir_properties); 2602 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 2603 } 2604 2605 static void usbredir_instance_init(Object *obj) 2606 { 2607 USBDevice *udev = USB_DEVICE(obj); 2608 USBRedirDevice *dev = USB_REDIRECT(udev); 2609 2610 device_add_bootindex_property(obj, &dev->bootindex, 2611 "bootindex", NULL, 2612 &udev->qdev); 2613 } 2614 2615 static const TypeInfo usbredir_dev_info = { 2616 .name = TYPE_USB_REDIR, 2617 .parent = TYPE_USB_DEVICE, 2618 .instance_size = sizeof(USBRedirDevice), 2619 .class_init = usbredir_class_initfn, 2620 .instance_init = usbredir_instance_init, 2621 }; 2622 module_obj(TYPE_USB_REDIR); 2623 module_kconfig(USB); 2624 2625 static void usbredir_register_types(void) 2626 { 2627 type_register_static(&usbredir_dev_info); 2628 } 2629 2630 type_init(usbredir_register_types) 2631