1 /* 2 * Copyright (C) 2011 Red Hat, Inc. 3 * 4 * CCID Device emulation 5 * 6 * Written by Alon Levy, with contributions from Robert Relyea. 7 * 8 * Based on usb-serial.c, see its copyright and attributions below. 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2.1 or later. 11 * See the COPYING file in the top-level directory. 12 * ------- (original copyright & attribution for usb-serial.c below) -------- 13 * Copyright (c) 2006 CodeSourcery. 14 * Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org> 15 * Written by Paul Brook, reused for FTDI by Samuel Thibault, 16 */ 17 18 /* 19 * References: 20 * 21 * CCID Specification Revision 1.1 April 22nd 2005 22 * "Universal Serial Bus, Device Class: Smart Card" 23 * Specification for Integrated Circuit(s) Cards Interface Devices 24 * 25 * Endianness note: from the spec (1.3) 26 * "Fields that are larger than a byte are stored in little endian" 27 * 28 * KNOWN BUGS 29 * 1. remove/insert can sometimes result in removed state instead of inserted. 30 * This is a result of the following: 31 * symptom: dmesg shows ERMOTEIO (-121), pcscd shows -99. This can happen 32 * when a short packet is sent, as seen in uhci-usb.c, resulting from a urb 33 * from the guest requesting SPD and us returning a smaller packet. 34 * Not sure which messages trigger this. 35 */ 36 37 #include "qemu-common.h" 38 #include "qemu/error-report.h" 39 #include "hw/usb.h" 40 #include "hw/usb/desc.h" 41 #include "monitor/monitor.h" 42 43 #include "hw/ccid.h" 44 45 #define DPRINTF(s, lvl, fmt, ...) \ 46 do { \ 47 if (lvl <= s->debug) { \ 48 printf("usb-ccid: " fmt , ## __VA_ARGS__); \ 49 } \ 50 } while (0) 51 52 #define D_WARN 1 53 #define D_INFO 2 54 #define D_MORE_INFO 3 55 #define D_VERBOSE 4 56 57 #define CCID_DEV_NAME "usb-ccid" 58 59 /* 60 * The two options for variable sized buffers: 61 * make them constant size, for large enough constant, 62 * or handle the migration complexity - VMState doesn't handle this case. 63 * sizes are expected never to be exceeded, unless guest misbehaves. 64 */ 65 #define BULK_OUT_DATA_SIZE 65536 66 #define PENDING_ANSWERS_NUM 128 67 68 #define BULK_IN_BUF_SIZE 384 69 #define BULK_IN_PENDING_NUM 8 70 71 #define InterfaceOutClass \ 72 ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8) 73 74 #define InterfaceInClass \ 75 ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8) 76 77 #define CCID_MAX_PACKET_SIZE 64 78 79 #define CCID_CONTROL_ABORT 0x1 80 #define CCID_CONTROL_GET_CLOCK_FREQUENCIES 0x2 81 #define CCID_CONTROL_GET_DATA_RATES 0x3 82 83 #define CCID_PRODUCT_DESCRIPTION "QEMU USB CCID" 84 #define CCID_VENDOR_DESCRIPTION "QEMU" 85 #define CCID_INTERFACE_NAME "CCID Interface" 86 #define CCID_SERIAL_NUMBER_STRING "1" 87 /* 88 * Using Gemplus Vendor and Product id 89 * Effect on various drivers: 90 * usbccid.sys (winxp, others untested) is a class driver so it doesn't care. 91 * linux has a number of class drivers, but openct filters based on 92 * vendor/product (/etc/openct.conf under fedora), hence Gemplus. 93 */ 94 #define CCID_VENDOR_ID 0x08e6 95 #define CCID_PRODUCT_ID 0x4433 96 #define CCID_DEVICE_VERSION 0x0000 97 98 /* 99 * BULK_OUT messages from PC to Reader 100 * Defined in CCID Rev 1.1 6.1 (page 26) 101 */ 102 #define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn 0x62 103 #define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff 0x63 104 #define CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus 0x65 105 #define CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock 0x6f 106 #define CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters 0x6c 107 #define CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters 0x6d 108 #define CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters 0x61 109 #define CCID_MESSAGE_TYPE_PC_to_RDR_Escape 0x6b 110 #define CCID_MESSAGE_TYPE_PC_to_RDR_IccClock 0x6e 111 #define CCID_MESSAGE_TYPE_PC_to_RDR_T0APDU 0x6a 112 #define CCID_MESSAGE_TYPE_PC_to_RDR_Secure 0x69 113 #define CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical 0x71 114 #define CCID_MESSAGE_TYPE_PC_to_RDR_Abort 0x72 115 #define CCID_MESSAGE_TYPE_PC_to_RDR_SetDataRateAndClockFrequency 0x73 116 117 /* 118 * BULK_IN messages from Reader to PC 119 * Defined in CCID Rev 1.1 6.2 (page 48) 120 */ 121 #define CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock 0x80 122 #define CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus 0x81 123 #define CCID_MESSAGE_TYPE_RDR_to_PC_Parameters 0x82 124 #define CCID_MESSAGE_TYPE_RDR_to_PC_Escape 0x83 125 #define CCID_MESSAGE_TYPE_RDR_to_PC_DataRateAndClockFrequency 0x84 126 127 /* 128 * INTERRUPT_IN messages from Reader to PC 129 * Defined in CCID Rev 1.1 6.3 (page 56) 130 */ 131 #define CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange 0x50 132 #define CCID_MESSAGE_TYPE_RDR_to_PC_HardwareError 0x51 133 134 /* 135 * Endpoints for CCID - addresses are up to us to decide. 136 * To support slot insertion and removal we must have an interrupt in ep 137 * in addition we need a bulk in and bulk out ep 138 * 5.2, page 20 139 */ 140 #define CCID_INT_IN_EP 1 141 #define CCID_BULK_IN_EP 2 142 #define CCID_BULK_OUT_EP 3 143 144 /* bmSlotICCState masks */ 145 #define SLOT_0_STATE_MASK 1 146 #define SLOT_0_CHANGED_MASK 2 147 148 /* Status codes that go in bStatus (see 6.2.6) */ 149 enum { 150 ICC_STATUS_PRESENT_ACTIVE = 0, 151 ICC_STATUS_PRESENT_INACTIVE, 152 ICC_STATUS_NOT_PRESENT 153 }; 154 155 enum { 156 COMMAND_STATUS_NO_ERROR = 0, 157 COMMAND_STATUS_FAILED, 158 COMMAND_STATUS_TIME_EXTENSION_REQUIRED 159 }; 160 161 /* Error codes that go in bError (see 6.2.6) */ 162 enum { 163 ERROR_CMD_NOT_SUPPORTED = 0, 164 ERROR_CMD_ABORTED = -1, 165 ERROR_ICC_MUTE = -2, 166 ERROR_XFR_PARITY_ERROR = -3, 167 ERROR_XFR_OVERRUN = -4, 168 ERROR_HW_ERROR = -5, 169 }; 170 171 /* 6.2.6 RDR_to_PC_SlotStatus definitions */ 172 enum { 173 CLOCK_STATUS_RUNNING = 0, 174 /* 175 * 0 - Clock Running, 1 - Clock stopped in State L, 2 - H, 176 * 3 - unknown state. rest are RFU 177 */ 178 }; 179 180 typedef struct QEMU_PACKED CCID_Header { 181 uint8_t bMessageType; 182 uint32_t dwLength; 183 uint8_t bSlot; 184 uint8_t bSeq; 185 } CCID_Header; 186 187 typedef struct QEMU_PACKED CCID_BULK_IN { 188 CCID_Header hdr; 189 uint8_t bStatus; /* Only used in BULK_IN */ 190 uint8_t bError; /* Only used in BULK_IN */ 191 } CCID_BULK_IN; 192 193 typedef struct QEMU_PACKED CCID_SlotStatus { 194 CCID_BULK_IN b; 195 uint8_t bClockStatus; 196 } CCID_SlotStatus; 197 198 typedef struct QEMU_PACKED CCID_Parameter { 199 CCID_BULK_IN b; 200 uint8_t bProtocolNum; 201 uint8_t abProtocolDataStructure[0]; 202 } CCID_Parameter; 203 204 typedef struct QEMU_PACKED CCID_DataBlock { 205 CCID_BULK_IN b; 206 uint8_t bChainParameter; 207 uint8_t abData[0]; 208 } CCID_DataBlock; 209 210 /* 6.1.4 PC_to_RDR_XfrBlock */ 211 typedef struct QEMU_PACKED CCID_XferBlock { 212 CCID_Header hdr; 213 uint8_t bBWI; /* Block Waiting Timeout */ 214 uint16_t wLevelParameter; /* XXX currently unused */ 215 uint8_t abData[0]; 216 } CCID_XferBlock; 217 218 typedef struct QEMU_PACKED CCID_IccPowerOn { 219 CCID_Header hdr; 220 uint8_t bPowerSelect; 221 uint16_t abRFU; 222 } CCID_IccPowerOn; 223 224 typedef struct QEMU_PACKED CCID_IccPowerOff { 225 CCID_Header hdr; 226 uint16_t abRFU; 227 } CCID_IccPowerOff; 228 229 typedef struct QEMU_PACKED CCID_SetParameters { 230 CCID_Header hdr; 231 uint8_t bProtocolNum; 232 uint16_t abRFU; 233 uint8_t abProtocolDataStructure[0]; 234 } CCID_SetParameters; 235 236 typedef struct CCID_Notify_Slot_Change { 237 uint8_t bMessageType; /* CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange */ 238 uint8_t bmSlotICCState; 239 } CCID_Notify_Slot_Change; 240 241 /* used for DataBlock response to XferBlock */ 242 typedef struct Answer { 243 uint8_t slot; 244 uint8_t seq; 245 } Answer; 246 247 /* pending BULK_IN messages */ 248 typedef struct BulkIn { 249 uint8_t data[BULK_IN_BUF_SIZE]; 250 uint32_t len; 251 uint32_t pos; 252 } BulkIn; 253 254 enum { 255 MIGRATION_NONE, 256 MIGRATION_MIGRATED, 257 }; 258 259 typedef struct CCIDBus { 260 BusState qbus; 261 } CCIDBus; 262 263 #define MAX_PROTOCOL_SIZE 7 264 265 /* 266 * powered - defaults to true, changed by PowerOn/PowerOff messages 267 */ 268 typedef struct USBCCIDState { 269 USBDevice dev; 270 USBEndpoint *intr; 271 CCIDBus bus; 272 CCIDCardState *card; 273 BulkIn bulk_in_pending[BULK_IN_PENDING_NUM]; /* circular */ 274 uint32_t bulk_in_pending_start; 275 uint32_t bulk_in_pending_end; /* first free */ 276 uint32_t bulk_in_pending_num; 277 BulkIn *current_bulk_in; 278 uint8_t bulk_out_data[BULK_OUT_DATA_SIZE]; 279 uint32_t bulk_out_pos; 280 uint64_t last_answer_error; 281 Answer pending_answers[PENDING_ANSWERS_NUM]; 282 uint32_t pending_answers_start; 283 uint32_t pending_answers_end; 284 uint32_t pending_answers_num; 285 uint8_t bError; 286 uint8_t bmCommandStatus; 287 uint8_t bProtocolNum; 288 uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE]; 289 uint32_t ulProtocolDataStructureSize; 290 uint32_t state_vmstate; 291 uint32_t migration_target_ip; 292 uint16_t migration_target_port; 293 uint8_t migration_state; 294 uint8_t bmSlotICCState; 295 uint8_t powered; 296 uint8_t notify_slot_change; 297 uint8_t debug; 298 } USBCCIDState; 299 300 /* 301 * CCID Spec chapter 4: CCID uses a standard device descriptor per Chapter 9, 302 * "USB Device Framework", section 9.6.1, in the Universal Serial Bus 303 * Specification. 304 * 305 * This device implemented based on the spec and with an Athena Smart Card 306 * Reader as reference: 307 * 0dc3:1004 Athena Smartcard Solutions, Inc. 308 */ 309 310 static const uint8_t qemu_ccid_descriptor[] = { 311 /* Smart Card Device Class Descriptor */ 312 0x36, /* u8 bLength; */ 313 0x21, /* u8 bDescriptorType; Functional */ 314 0x10, 0x01, /* u16 bcdCCID; CCID Specification Release Number. */ 315 0x00, /* 316 * u8 bMaxSlotIndex; The index of the highest available 317 * slot on this device. All slots are consecutive starting 318 * at 00h. 319 */ 320 0x07, /* u8 bVoltageSupport; 01h - 5.0v, 02h - 3.0, 03 - 1.8 */ 321 322 0x03, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/ 323 0x00, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */ 324 /* u32 dwDefaultClock; in kHZ (0x0fa0 is 4 MHz) */ 325 0xa0, 0x0f, 0x00, 0x00, 326 /* u32 dwMaximumClock; */ 327 0x00, 0x00, 0x01, 0x00, 328 0x00, /* u8 bNumClockSupported; * 329 * 0 means just the default and max. */ 330 /* u32 dwDataRate ;bps. 9600 == 00002580h */ 331 0x80, 0x25, 0x00, 0x00, 332 /* u32 dwMaxDataRate ; 11520 bps == 0001C200h */ 333 0x00, 0xC2, 0x01, 0x00, 334 0x00, /* u8 bNumDataRatesSupported; 00 means all rates between 335 * default and max */ 336 /* u32 dwMaxIFSD; * 337 * maximum IFSD supported by CCID for protocol * 338 * T=1 (Maximum seen from various cards) */ 339 0xfe, 0x00, 0x00, 0x00, 340 /* u32 dwSyncProtocols; 1 - 2-wire, 2 - 3-wire, 4 - I2C */ 341 0x00, 0x00, 0x00, 0x00, 342 /* u32 dwMechanical; 0 - no special characteristics. */ 343 0x00, 0x00, 0x00, 0x00, 344 /* 345 * u32 dwFeatures; 346 * 0 - No special characteristics 347 * + 2 Automatic parameter configuration based on ATR data 348 * + 4 Automatic activation of ICC on inserting 349 * + 8 Automatic ICC voltage selection 350 * + 10 Automatic ICC clock frequency change 351 * + 20 Automatic baud rate change 352 * + 40 Automatic parameters negotiation made by the CCID 353 * + 80 automatic PPS made by the CCID 354 * 100 CCID can set ICC in clock stop mode 355 * 200 NAD value other then 00 accepted (T=1 protocol) 356 * + 400 Automatic IFSD exchange as first exchange (T=1) 357 * One of the following only: 358 * + 10000 TPDU level exchanges with CCID 359 * 20000 Short APDU level exchange with CCID 360 * 40000 Short and Extended APDU level exchange with CCID 361 * 362 * + 100000 USB Wake up signaling supported on card 363 * insertion and removal. Must set bit 5 in bmAttributes 364 * in Configuration descriptor if 100000 is set. 365 */ 366 0xfe, 0x04, 0x11, 0x00, 367 /* 368 * u32 dwMaxCCIDMessageLength; For extended APDU in 369 * [261 + 10 , 65544 + 10]. Otherwise the minimum is 370 * wMaxPacketSize of the Bulk-OUT endpoint 371 */ 372 0x12, 0x00, 0x01, 0x00, 373 0xFF, /* 374 * u8 bClassGetResponse; Significant only for CCID that 375 * offers an APDU level for exchanges. Indicates the 376 * default class value used by the CCID when it sends a 377 * Get Response command to perform the transportation of 378 * an APDU by T=0 protocol 379 * FFh indicates that the CCID echos the class of the APDU. 380 */ 381 0xFF, /* 382 * u8 bClassEnvelope; EAPDU only. Envelope command for 383 * T=0 384 */ 385 0x00, 0x00, /* 386 * u16 wLcdLayout; XXYY Number of lines (XX) and chars per 387 * line for LCD display used for PIN entry. 0000 - no LCD 388 */ 389 0x01, /* 390 * u8 bPINSupport; 01h PIN Verification, 391 * 02h PIN Modification 392 */ 393 0x01, /* u8 bMaxCCIDBusySlots; */ 394 }; 395 396 enum { 397 STR_MANUFACTURER = 1, 398 STR_PRODUCT, 399 STR_SERIALNUMBER, 400 STR_INTERFACE, 401 }; 402 403 static const USBDescStrings desc_strings = { 404 [STR_MANUFACTURER] = "QEMU", 405 [STR_PRODUCT] = "QEMU USB CCID", 406 [STR_SERIALNUMBER] = "1", 407 [STR_INTERFACE] = "CCID Interface", 408 }; 409 410 static const USBDescIface desc_iface0 = { 411 .bInterfaceNumber = 0, 412 .bNumEndpoints = 3, 413 .bInterfaceClass = 0x0b, 414 .bInterfaceSubClass = 0x00, 415 .bInterfaceProtocol = 0x00, 416 .iInterface = STR_INTERFACE, 417 .ndesc = 1, 418 .descs = (USBDescOther[]) { 419 { 420 /* smartcard descriptor */ 421 .data = qemu_ccid_descriptor, 422 }, 423 }, 424 .eps = (USBDescEndpoint[]) { 425 { 426 .bEndpointAddress = USB_DIR_IN | CCID_INT_IN_EP, 427 .bmAttributes = USB_ENDPOINT_XFER_INT, 428 .bInterval = 255, 429 .wMaxPacketSize = 64, 430 },{ 431 .bEndpointAddress = USB_DIR_IN | CCID_BULK_IN_EP, 432 .bmAttributes = USB_ENDPOINT_XFER_BULK, 433 .wMaxPacketSize = 64, 434 },{ 435 .bEndpointAddress = USB_DIR_OUT | CCID_BULK_OUT_EP, 436 .bmAttributes = USB_ENDPOINT_XFER_BULK, 437 .wMaxPacketSize = 64, 438 }, 439 } 440 }; 441 442 static const USBDescDevice desc_device = { 443 .bcdUSB = 0x0110, 444 .bMaxPacketSize0 = 64, 445 .bNumConfigurations = 1, 446 .confs = (USBDescConfig[]) { 447 { 448 .bNumInterfaces = 1, 449 .bConfigurationValue = 1, 450 .bmAttributes = 0xe0, 451 .bMaxPower = 50, 452 .nif = 1, 453 .ifs = &desc_iface0, 454 }, 455 }, 456 }; 457 458 static const USBDesc desc_ccid = { 459 .id = { 460 .idVendor = CCID_VENDOR_ID, 461 .idProduct = CCID_PRODUCT_ID, 462 .bcdDevice = CCID_DEVICE_VERSION, 463 .iManufacturer = STR_MANUFACTURER, 464 .iProduct = STR_PRODUCT, 465 .iSerialNumber = STR_SERIALNUMBER, 466 }, 467 .full = &desc_device, 468 .str = desc_strings, 469 }; 470 471 static const uint8_t *ccid_card_get_atr(CCIDCardState *card, uint32_t *len) 472 { 473 CCIDCardClass *cc = CCID_CARD_GET_CLASS(card); 474 if (cc->get_atr) { 475 return cc->get_atr(card, len); 476 } 477 return NULL; 478 } 479 480 static void ccid_card_apdu_from_guest(CCIDCardState *card, 481 const uint8_t *apdu, 482 uint32_t len) 483 { 484 CCIDCardClass *cc = CCID_CARD_GET_CLASS(card); 485 if (cc->apdu_from_guest) { 486 cc->apdu_from_guest(card, apdu, len); 487 } 488 } 489 490 static int ccid_card_exitfn(CCIDCardState *card) 491 { 492 CCIDCardClass *cc = CCID_CARD_GET_CLASS(card); 493 if (cc->exitfn) { 494 return cc->exitfn(card); 495 } 496 return 0; 497 } 498 499 static int ccid_card_initfn(CCIDCardState *card) 500 { 501 CCIDCardClass *cc = CCID_CARD_GET_CLASS(card); 502 if (cc->initfn) { 503 return cc->initfn(card); 504 } 505 return 0; 506 } 507 508 static bool ccid_has_pending_answers(USBCCIDState *s) 509 { 510 return s->pending_answers_num > 0; 511 } 512 513 static void ccid_clear_pending_answers(USBCCIDState *s) 514 { 515 s->pending_answers_num = 0; 516 s->pending_answers_start = 0; 517 s->pending_answers_end = 0; 518 } 519 520 static void ccid_print_pending_answers(USBCCIDState *s) 521 { 522 Answer *answer; 523 int i, count; 524 525 DPRINTF(s, D_VERBOSE, "usb-ccid: pending answers:"); 526 if (!ccid_has_pending_answers(s)) { 527 DPRINTF(s, D_VERBOSE, " empty\n"); 528 return; 529 } 530 for (i = s->pending_answers_start, count = s->pending_answers_num ; 531 count > 0; count--, i++) { 532 answer = &s->pending_answers[i % PENDING_ANSWERS_NUM]; 533 if (count == 1) { 534 DPRINTF(s, D_VERBOSE, "%d:%d\n", answer->slot, answer->seq); 535 } else { 536 DPRINTF(s, D_VERBOSE, "%d:%d,", answer->slot, answer->seq); 537 } 538 } 539 } 540 541 static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr) 542 { 543 Answer *answer; 544 545 assert(s->pending_answers_num < PENDING_ANSWERS_NUM); 546 s->pending_answers_num++; 547 answer = 548 &s->pending_answers[(s->pending_answers_end++) % PENDING_ANSWERS_NUM]; 549 answer->slot = hdr->bSlot; 550 answer->seq = hdr->bSeq; 551 ccid_print_pending_answers(s); 552 } 553 554 static void ccid_remove_pending_answer(USBCCIDState *s, 555 uint8_t *slot, uint8_t *seq) 556 { 557 Answer *answer; 558 559 assert(s->pending_answers_num > 0); 560 s->pending_answers_num--; 561 answer = 562 &s->pending_answers[(s->pending_answers_start++) % PENDING_ANSWERS_NUM]; 563 *slot = answer->slot; 564 *seq = answer->seq; 565 ccid_print_pending_answers(s); 566 } 567 568 static void ccid_bulk_in_clear(USBCCIDState *s) 569 { 570 s->bulk_in_pending_start = 0; 571 s->bulk_in_pending_end = 0; 572 s->bulk_in_pending_num = 0; 573 } 574 575 static void ccid_bulk_in_release(USBCCIDState *s) 576 { 577 assert(s->current_bulk_in != NULL); 578 s->current_bulk_in->pos = 0; 579 s->current_bulk_in = NULL; 580 } 581 582 static void ccid_bulk_in_get(USBCCIDState *s) 583 { 584 if (s->current_bulk_in != NULL || s->bulk_in_pending_num == 0) { 585 return; 586 } 587 assert(s->bulk_in_pending_num > 0); 588 s->bulk_in_pending_num--; 589 s->current_bulk_in = 590 &s->bulk_in_pending[(s->bulk_in_pending_start++) % BULK_IN_PENDING_NUM]; 591 } 592 593 static void *ccid_reserve_recv_buf(USBCCIDState *s, uint16_t len) 594 { 595 BulkIn *bulk_in; 596 597 DPRINTF(s, D_VERBOSE, "%s: QUEUE: reserve %d bytes\n", __func__, len); 598 599 /* look for an existing element */ 600 if (len > BULK_IN_BUF_SIZE) { 601 DPRINTF(s, D_WARN, "usb-ccid.c: %s: len larger then max (%d>%d). " 602 "discarding message.\n", 603 __func__, len, BULK_IN_BUF_SIZE); 604 return NULL; 605 } 606 if (s->bulk_in_pending_num >= BULK_IN_PENDING_NUM) { 607 DPRINTF(s, D_WARN, "usb-ccid.c: %s: No free bulk_in buffers. " 608 "discarding message.\n", __func__); 609 return NULL; 610 } 611 bulk_in = 612 &s->bulk_in_pending[(s->bulk_in_pending_end++) % BULK_IN_PENDING_NUM]; 613 s->bulk_in_pending_num++; 614 bulk_in->len = len; 615 return bulk_in->data; 616 } 617 618 static void ccid_reset(USBCCIDState *s) 619 { 620 ccid_bulk_in_clear(s); 621 ccid_clear_pending_answers(s); 622 } 623 624 static void ccid_detach(USBCCIDState *s) 625 { 626 ccid_reset(s); 627 } 628 629 static void ccid_handle_reset(USBDevice *dev) 630 { 631 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); 632 633 DPRINTF(s, 1, "Reset\n"); 634 635 ccid_reset(s); 636 } 637 638 static void ccid_handle_control(USBDevice *dev, USBPacket *p, int request, 639 int value, int index, int length, uint8_t *data) 640 { 641 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); 642 int ret; 643 644 DPRINTF(s, 1, "got control %x, value %x\n", request, value); 645 ret = usb_desc_handle_control(dev, p, request, value, index, length, data); 646 if (ret >= 0) { 647 return; 648 } 649 650 switch (request) { 651 /* Class specific requests. */ 652 case InterfaceOutClass | CCID_CONTROL_ABORT: 653 DPRINTF(s, 1, "ccid_control abort UNIMPLEMENTED\n"); 654 p->status = USB_RET_STALL; 655 break; 656 case InterfaceInClass | CCID_CONTROL_GET_CLOCK_FREQUENCIES: 657 DPRINTF(s, 1, "ccid_control get clock frequencies UNIMPLEMENTED\n"); 658 p->status = USB_RET_STALL; 659 break; 660 case InterfaceInClass | CCID_CONTROL_GET_DATA_RATES: 661 DPRINTF(s, 1, "ccid_control get data rates UNIMPLEMENTED\n"); 662 p->status = USB_RET_STALL; 663 break; 664 default: 665 DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n", 666 request, value); 667 p->status = USB_RET_STALL; 668 break; 669 } 670 } 671 672 static bool ccid_card_inserted(USBCCIDState *s) 673 { 674 return s->bmSlotICCState & SLOT_0_STATE_MASK; 675 } 676 677 static uint8_t ccid_card_status(USBCCIDState *s) 678 { 679 return ccid_card_inserted(s) 680 ? (s->powered ? 681 ICC_STATUS_PRESENT_ACTIVE 682 : ICC_STATUS_PRESENT_INACTIVE 683 ) 684 : ICC_STATUS_NOT_PRESENT; 685 } 686 687 static uint8_t ccid_calc_status(USBCCIDState *s) 688 { 689 /* 690 * page 55, 6.2.6, calculation of bStatus from bmICCStatus and 691 * bmCommandStatus 692 */ 693 uint8_t ret = ccid_card_status(s) | (s->bmCommandStatus << 6); 694 DPRINTF(s, D_VERBOSE, "status = %d\n", ret); 695 return ret; 696 } 697 698 static void ccid_reset_error_status(USBCCIDState *s) 699 { 700 s->bError = ERROR_CMD_NOT_SUPPORTED; 701 s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; 702 } 703 704 static void ccid_write_slot_status(USBCCIDState *s, CCID_Header *recv) 705 { 706 CCID_SlotStatus *h = ccid_reserve_recv_buf(s, sizeof(CCID_SlotStatus)); 707 if (h == NULL) { 708 return; 709 } 710 h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus; 711 h->b.hdr.dwLength = 0; 712 h->b.hdr.bSlot = recv->bSlot; 713 h->b.hdr.bSeq = recv->bSeq; 714 h->b.bStatus = ccid_calc_status(s); 715 h->b.bError = s->bError; 716 h->bClockStatus = CLOCK_STATUS_RUNNING; 717 ccid_reset_error_status(s); 718 } 719 720 static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv) 721 { 722 CCID_Parameter *h; 723 uint32_t len = s->ulProtocolDataStructureSize; 724 725 h = ccid_reserve_recv_buf(s, sizeof(CCID_Parameter) + len); 726 if (h == NULL) { 727 return; 728 } 729 h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_Parameters; 730 h->b.hdr.dwLength = 0; 731 h->b.hdr.bSlot = recv->bSlot; 732 h->b.hdr.bSeq = recv->bSeq; 733 h->b.bStatus = ccid_calc_status(s); 734 h->b.bError = s->bError; 735 h->bProtocolNum = s->bProtocolNum; 736 memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len); 737 ccid_reset_error_status(s); 738 } 739 740 static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq, 741 const uint8_t *data, uint32_t len) 742 { 743 CCID_DataBlock *p = ccid_reserve_recv_buf(s, sizeof(*p) + len); 744 745 if (p == NULL) { 746 return; 747 } 748 p->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock; 749 p->b.hdr.dwLength = cpu_to_le32(len); 750 p->b.hdr.bSlot = slot; 751 p->b.hdr.bSeq = seq; 752 p->b.bStatus = ccid_calc_status(s); 753 p->b.bError = s->bError; 754 if (p->b.bError) { 755 DPRINTF(s, D_VERBOSE, "error %d", p->b.bError); 756 } 757 memcpy(p->abData, data, len); 758 ccid_reset_error_status(s); 759 } 760 761 static void ccid_write_data_block_answer(USBCCIDState *s, 762 const uint8_t *data, uint32_t len) 763 { 764 uint8_t seq; 765 uint8_t slot; 766 767 if (!ccid_has_pending_answers(s)) { 768 abort(); 769 } 770 ccid_remove_pending_answer(s, &slot, &seq); 771 ccid_write_data_block(s, slot, seq, data, len); 772 } 773 774 static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv) 775 { 776 const uint8_t *atr = NULL; 777 uint32_t len = 0; 778 779 if (s->card) { 780 atr = ccid_card_get_atr(s->card, &len); 781 } 782 ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len); 783 } 784 785 static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv) 786 { 787 CCID_SetParameters *ph = (CCID_SetParameters *) recv; 788 uint32_t len = 0; 789 if ((ph->bProtocolNum & 3) == 0) { 790 len = 5; 791 } 792 if ((ph->bProtocolNum & 3) == 1) { 793 len = 7; 794 } 795 if (len == 0) { 796 s->bmCommandStatus = COMMAND_STATUS_FAILED; 797 s->bError = 7; /* Protocol invalid or not supported */ 798 return; 799 } 800 s->bProtocolNum = ph->bProtocolNum; 801 memcpy(s->abProtocolDataStructure, ph->abProtocolDataStructure, len); 802 s->ulProtocolDataStructureSize = len; 803 DPRINTF(s, 1, "%s: using len %d\n", __func__, len); 804 } 805 806 /* 807 * must be 5 bytes for T=0, 7 bytes for T=1 808 * See page 52 809 */ 810 static const uint8_t abDefaultProtocolDataStructure[7] = { 811 0x77, 0x00, 0x00, 0x00, 0x00, 0xfe /*IFSC*/, 0x00 /*NAD*/ }; 812 813 static void ccid_reset_parameters(USBCCIDState *s) 814 { 815 uint32_t len = sizeof(abDefaultProtocolDataStructure); 816 817 s->bProtocolNum = 1; /* T=1 */ 818 s->ulProtocolDataStructureSize = len; 819 memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len); 820 } 821 822 static void ccid_report_error_failed(USBCCIDState *s, uint8_t error) 823 { 824 s->bmCommandStatus = COMMAND_STATUS_FAILED; 825 s->bError = error; 826 } 827 828 /* NOTE: only a single slot is supported (SLOT_0) */ 829 static void ccid_on_slot_change(USBCCIDState *s, bool full) 830 { 831 /* RDR_to_PC_NotifySlotChange, 6.3.1 page 56 */ 832 uint8_t current = s->bmSlotICCState; 833 if (full) { 834 s->bmSlotICCState |= SLOT_0_STATE_MASK; 835 } else { 836 s->bmSlotICCState &= ~SLOT_0_STATE_MASK; 837 } 838 if (current != s->bmSlotICCState) { 839 s->bmSlotICCState |= SLOT_0_CHANGED_MASK; 840 } 841 s->notify_slot_change = true; 842 usb_wakeup(s->intr); 843 } 844 845 static void ccid_write_data_block_error( 846 USBCCIDState *s, uint8_t slot, uint8_t seq) 847 { 848 ccid_write_data_block(s, slot, seq, NULL, 0); 849 } 850 851 static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv) 852 { 853 uint32_t len; 854 855 if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) { 856 DPRINTF(s, 1, 857 "usb-ccid: not sending apdu to client, no card connected\n"); 858 ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq); 859 return; 860 } 861 len = le32_to_cpu(recv->hdr.dwLength); 862 DPRINTF(s, 1, "%s: seq %d, len %d\n", __func__, 863 recv->hdr.bSeq, len); 864 ccid_add_pending_answer(s, (CCID_Header *)recv); 865 if (s->card) { 866 ccid_card_apdu_from_guest(s->card, recv->abData, len); 867 } else { 868 DPRINTF(s, D_WARN, "warning: discarded apdu\n"); 869 } 870 } 871 872 static void ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p) 873 { 874 CCID_Header *ccid_header; 875 876 if (p->iov.size + s->bulk_out_pos > BULK_OUT_DATA_SIZE) { 877 p->status = USB_RET_STALL; 878 return; 879 } 880 ccid_header = (CCID_Header *)s->bulk_out_data; 881 usb_packet_copy(p, s->bulk_out_data + s->bulk_out_pos, p->iov.size); 882 s->bulk_out_pos += p->iov.size; 883 if (p->iov.size == CCID_MAX_PACKET_SIZE) { 884 DPRINTF(s, D_VERBOSE, 885 "usb-ccid: bulk_in: expecting more packets (%zd/%d)\n", 886 p->iov.size, ccid_header->dwLength); 887 return; 888 } 889 if (s->bulk_out_pos < 10) { 890 DPRINTF(s, 1, 891 "%s: bad USB_TOKEN_OUT length, should be at least 10 bytes\n", 892 __func__); 893 } else { 894 DPRINTF(s, D_MORE_INFO, "%s %x\n", __func__, ccid_header->bMessageType); 895 switch (ccid_header->bMessageType) { 896 case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus: 897 ccid_write_slot_status(s, ccid_header); 898 break; 899 case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn: 900 DPRINTF(s, 1, "PowerOn: %d\n", 901 ((CCID_IccPowerOn *)(ccid_header))->bPowerSelect); 902 s->powered = true; 903 if (!ccid_card_inserted(s)) { 904 ccid_report_error_failed(s, ERROR_ICC_MUTE); 905 } 906 /* atr is written regardless of error. */ 907 ccid_write_data_block_atr(s, ccid_header); 908 break; 909 case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff: 910 DPRINTF(s, 1, "PowerOff\n"); 911 ccid_reset_error_status(s); 912 s->powered = false; 913 ccid_write_slot_status(s, ccid_header); 914 break; 915 case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock: 916 ccid_on_apdu_from_guest(s, (CCID_XferBlock *)s->bulk_out_data); 917 break; 918 case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters: 919 ccid_reset_error_status(s); 920 ccid_set_parameters(s, ccid_header); 921 ccid_write_parameters(s, ccid_header); 922 break; 923 case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters: 924 ccid_reset_error_status(s); 925 ccid_reset_parameters(s); 926 ccid_write_parameters(s, ccid_header); 927 break; 928 case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters: 929 ccid_reset_error_status(s); 930 ccid_write_parameters(s, ccid_header); 931 break; 932 default: 933 DPRINTF(s, 1, 934 "handle_data: ERROR: unhandled message type %Xh\n", 935 ccid_header->bMessageType); 936 /* 937 * The caller is expecting the device to respond, tell it we 938 * don't support the operation. 939 */ 940 ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED); 941 ccid_write_slot_status(s, ccid_header); 942 break; 943 } 944 } 945 s->bulk_out_pos = 0; 946 } 947 948 static void ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p) 949 { 950 int len = 0; 951 952 ccid_bulk_in_get(s); 953 if (s->current_bulk_in != NULL) { 954 len = MIN(s->current_bulk_in->len - s->current_bulk_in->pos, 955 p->iov.size); 956 usb_packet_copy(p, s->current_bulk_in->data + 957 s->current_bulk_in->pos, len); 958 s->current_bulk_in->pos += len; 959 if (s->current_bulk_in->pos == s->current_bulk_in->len) { 960 ccid_bulk_in_release(s); 961 } 962 } else { 963 /* return when device has no data - usb 2.0 spec Table 8-4 */ 964 p->status = USB_RET_NAK; 965 } 966 if (len) { 967 DPRINTF(s, D_MORE_INFO, 968 "%s: %zd/%d req/act to guest (BULK_IN)\n", 969 __func__, p->iov.size, len); 970 } 971 if (len < p->iov.size) { 972 DPRINTF(s, 1, 973 "%s: returning short (EREMOTEIO) %d < %zd\n", 974 __func__, len, p->iov.size); 975 } 976 } 977 978 static void ccid_handle_data(USBDevice *dev, USBPacket *p) 979 { 980 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); 981 uint8_t buf[2]; 982 983 switch (p->pid) { 984 case USB_TOKEN_OUT: 985 ccid_handle_bulk_out(s, p); 986 break; 987 988 case USB_TOKEN_IN: 989 switch (p->ep->nr) { 990 case CCID_BULK_IN_EP: 991 ccid_bulk_in_copy_to_guest(s, p); 992 break; 993 case CCID_INT_IN_EP: 994 if (s->notify_slot_change) { 995 /* page 56, RDR_to_PC_NotifySlotChange */ 996 buf[0] = CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange; 997 buf[1] = s->bmSlotICCState; 998 usb_packet_copy(p, buf, 2); 999 s->notify_slot_change = false; 1000 s->bmSlotICCState &= ~SLOT_0_CHANGED_MASK; 1001 DPRINTF(s, D_INFO, 1002 "handle_data: int_in: notify_slot_change %X, " 1003 "requested len %zd\n", 1004 s->bmSlotICCState, p->iov.size); 1005 } else { 1006 p->status = USB_RET_NAK; 1007 } 1008 break; 1009 default: 1010 DPRINTF(s, 1, "Bad endpoint\n"); 1011 p->status = USB_RET_STALL; 1012 break; 1013 } 1014 break; 1015 default: 1016 DPRINTF(s, 1, "Bad token\n"); 1017 p->status = USB_RET_STALL; 1018 break; 1019 } 1020 } 1021 1022 static void ccid_handle_destroy(USBDevice *dev) 1023 { 1024 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); 1025 1026 ccid_bulk_in_clear(s); 1027 } 1028 1029 static void ccid_flush_pending_answers(USBCCIDState *s) 1030 { 1031 while (ccid_has_pending_answers(s)) { 1032 ccid_write_data_block_answer(s, NULL, 0); 1033 } 1034 } 1035 1036 static Answer *ccid_peek_next_answer(USBCCIDState *s) 1037 { 1038 return s->pending_answers_num == 0 1039 ? NULL 1040 : &s->pending_answers[s->pending_answers_start % PENDING_ANSWERS_NUM]; 1041 } 1042 1043 static Property ccid_props[] = { 1044 DEFINE_PROP_UINT32("slot", struct CCIDCardState, slot, 0), 1045 DEFINE_PROP_END_OF_LIST(), 1046 }; 1047 1048 #define TYPE_CCID_BUS "ccid-bus" 1049 #define CCID_BUS(obj) OBJECT_CHECK(CCIDBus, (obj), TYPE_CCID_BUS) 1050 1051 static const TypeInfo ccid_bus_info = { 1052 .name = TYPE_CCID_BUS, 1053 .parent = TYPE_BUS, 1054 .instance_size = sizeof(CCIDBus), 1055 }; 1056 1057 void ccid_card_send_apdu_to_guest(CCIDCardState *card, 1058 uint8_t *apdu, uint32_t len) 1059 { 1060 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev.qdev, 1061 card->qdev.parent_bus->parent); 1062 Answer *answer; 1063 1064 if (!ccid_has_pending_answers(s)) { 1065 DPRINTF(s, 1, "CCID ERROR: got an APDU without pending answers\n"); 1066 return; 1067 } 1068 s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; 1069 answer = ccid_peek_next_answer(s); 1070 if (answer == NULL) { 1071 abort(); 1072 } 1073 DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n", 1074 len, answer->seq, answer->slot); 1075 ccid_write_data_block_answer(s, apdu, len); 1076 } 1077 1078 void ccid_card_card_removed(CCIDCardState *card) 1079 { 1080 USBCCIDState *s = 1081 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1082 1083 ccid_on_slot_change(s, false); 1084 ccid_flush_pending_answers(s); 1085 ccid_reset(s); 1086 } 1087 1088 int ccid_card_ccid_attach(CCIDCardState *card) 1089 { 1090 USBCCIDState *s = 1091 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1092 1093 DPRINTF(s, 1, "CCID Attach\n"); 1094 if (s->migration_state == MIGRATION_MIGRATED) { 1095 s->migration_state = MIGRATION_NONE; 1096 } 1097 return 0; 1098 } 1099 1100 void ccid_card_ccid_detach(CCIDCardState *card) 1101 { 1102 USBCCIDState *s = 1103 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1104 1105 DPRINTF(s, 1, "CCID Detach\n"); 1106 if (ccid_card_inserted(s)) { 1107 ccid_on_slot_change(s, false); 1108 } 1109 ccid_detach(s); 1110 } 1111 1112 void ccid_card_card_error(CCIDCardState *card, uint64_t error) 1113 { 1114 USBCCIDState *s = 1115 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1116 1117 s->bmCommandStatus = COMMAND_STATUS_FAILED; 1118 s->last_answer_error = error; 1119 DPRINTF(s, 1, "VSC_Error: %" PRIX64 "\n", s->last_answer_error); 1120 /* TODO: these errors should be more verbose and propagated to the guest.*/ 1121 /* 1122 * We flush all pending answers on CardRemove message in ccid-card-passthru, 1123 * so check that first to not trigger abort 1124 */ 1125 if (ccid_has_pending_answers(s)) { 1126 ccid_write_data_block_answer(s, NULL, 0); 1127 } 1128 } 1129 1130 void ccid_card_card_inserted(CCIDCardState *card) 1131 { 1132 USBCCIDState *s = 1133 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1134 1135 s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; 1136 ccid_flush_pending_answers(s); 1137 ccid_on_slot_change(s, true); 1138 } 1139 1140 static int ccid_card_exit(DeviceState *qdev) 1141 { 1142 int ret = 0; 1143 CCIDCardState *card = CCID_CARD(qdev); 1144 USBCCIDState *s = 1145 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1146 1147 if (ccid_card_inserted(s)) { 1148 ccid_card_card_removed(card); 1149 } 1150 ret = ccid_card_exitfn(card); 1151 s->card = NULL; 1152 return ret; 1153 } 1154 1155 static int ccid_card_init(DeviceState *qdev) 1156 { 1157 CCIDCardState *card = CCID_CARD(qdev); 1158 USBCCIDState *s = 1159 DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); 1160 int ret = 0; 1161 1162 if (card->slot != 0) { 1163 error_report("Warning: usb-ccid supports one slot, can't add %d", 1164 card->slot); 1165 return -1; 1166 } 1167 if (s->card != NULL) { 1168 error_report("Warning: usb-ccid card already full, not adding"); 1169 return -1; 1170 } 1171 ret = ccid_card_initfn(card); 1172 if (ret == 0) { 1173 s->card = card; 1174 } 1175 return ret; 1176 } 1177 1178 static int ccid_initfn(USBDevice *dev) 1179 { 1180 USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); 1181 1182 usb_desc_create_serial(dev); 1183 usb_desc_init(dev); 1184 qbus_create_inplace(&s->bus.qbus, TYPE_CCID_BUS, &dev->qdev, NULL); 1185 s->intr = usb_ep_get(dev, USB_TOKEN_IN, CCID_INT_IN_EP); 1186 s->bus.qbus.allow_hotplug = 1; 1187 s->card = NULL; 1188 s->migration_state = MIGRATION_NONE; 1189 s->migration_target_ip = 0; 1190 s->migration_target_port = 0; 1191 s->dev.speed = USB_SPEED_FULL; 1192 s->dev.speedmask = USB_SPEED_MASK_FULL; 1193 s->notify_slot_change = false; 1194 s->powered = true; 1195 s->pending_answers_num = 0; 1196 s->last_answer_error = 0; 1197 s->bulk_in_pending_start = 0; 1198 s->bulk_in_pending_end = 0; 1199 s->current_bulk_in = NULL; 1200 ccid_reset_error_status(s); 1201 s->bulk_out_pos = 0; 1202 ccid_reset_parameters(s); 1203 ccid_reset(s); 1204 return 0; 1205 } 1206 1207 static int ccid_post_load(void *opaque, int version_id) 1208 { 1209 USBCCIDState *s = opaque; 1210 1211 /* 1212 * This must be done after usb_device_attach, which sets state to ATTACHED, 1213 * while it must be DEFAULT in order to accept packets (like it is after 1214 * reset, but reset will reset our addr and call our reset handler which 1215 * may change state, and we don't want to do that when migrating). 1216 */ 1217 s->dev.state = s->state_vmstate; 1218 return 0; 1219 } 1220 1221 static void ccid_pre_save(void *opaque) 1222 { 1223 USBCCIDState *s = opaque; 1224 1225 s->state_vmstate = s->dev.state; 1226 if (s->dev.attached) { 1227 /* 1228 * Migrating an open device, ignore reconnection CHR_EVENT to avoid an 1229 * erroneous detach. 1230 */ 1231 s->migration_state = MIGRATION_MIGRATED; 1232 } 1233 } 1234 1235 static VMStateDescription bulk_in_vmstate = { 1236 .name = "CCID BulkIn state", 1237 .version_id = 1, 1238 .minimum_version_id = 1, 1239 .fields = (VMStateField[]) { 1240 VMSTATE_BUFFER(data, BulkIn), 1241 VMSTATE_UINT32(len, BulkIn), 1242 VMSTATE_UINT32(pos, BulkIn), 1243 VMSTATE_END_OF_LIST() 1244 } 1245 }; 1246 1247 static VMStateDescription answer_vmstate = { 1248 .name = "CCID Answer state", 1249 .version_id = 1, 1250 .minimum_version_id = 1, 1251 .fields = (VMStateField[]) { 1252 VMSTATE_UINT8(slot, Answer), 1253 VMSTATE_UINT8(seq, Answer), 1254 VMSTATE_END_OF_LIST() 1255 } 1256 }; 1257 1258 static VMStateDescription usb_device_vmstate = { 1259 .name = "usb_device", 1260 .version_id = 1, 1261 .minimum_version_id = 1, 1262 .fields = (VMStateField[]) { 1263 VMSTATE_UINT8(addr, USBDevice), 1264 VMSTATE_BUFFER(setup_buf, USBDevice), 1265 VMSTATE_BUFFER(data_buf, USBDevice), 1266 VMSTATE_END_OF_LIST() 1267 } 1268 }; 1269 1270 static VMStateDescription ccid_vmstate = { 1271 .name = CCID_DEV_NAME, 1272 .version_id = 1, 1273 .minimum_version_id = 1, 1274 .post_load = ccid_post_load, 1275 .pre_save = ccid_pre_save, 1276 .fields = (VMStateField[]) { 1277 VMSTATE_STRUCT(dev, USBCCIDState, 1, usb_device_vmstate, USBDevice), 1278 VMSTATE_UINT8(debug, USBCCIDState), 1279 VMSTATE_BUFFER(bulk_out_data, USBCCIDState), 1280 VMSTATE_UINT32(bulk_out_pos, USBCCIDState), 1281 VMSTATE_UINT8(bmSlotICCState, USBCCIDState), 1282 VMSTATE_UINT8(powered, USBCCIDState), 1283 VMSTATE_UINT8(notify_slot_change, USBCCIDState), 1284 VMSTATE_UINT64(last_answer_error, USBCCIDState), 1285 VMSTATE_UINT8(bError, USBCCIDState), 1286 VMSTATE_UINT8(bmCommandStatus, USBCCIDState), 1287 VMSTATE_UINT8(bProtocolNum, USBCCIDState), 1288 VMSTATE_BUFFER(abProtocolDataStructure, USBCCIDState), 1289 VMSTATE_UINT32(ulProtocolDataStructureSize, USBCCIDState), 1290 VMSTATE_STRUCT_ARRAY(bulk_in_pending, USBCCIDState, 1291 BULK_IN_PENDING_NUM, 1, bulk_in_vmstate, BulkIn), 1292 VMSTATE_UINT32(bulk_in_pending_start, USBCCIDState), 1293 VMSTATE_UINT32(bulk_in_pending_end, USBCCIDState), 1294 VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState, 1295 PENDING_ANSWERS_NUM, 1, answer_vmstate, Answer), 1296 VMSTATE_UINT32(pending_answers_num, USBCCIDState), 1297 VMSTATE_UINT8(migration_state, USBCCIDState), 1298 VMSTATE_UINT32(state_vmstate, USBCCIDState), 1299 VMSTATE_END_OF_LIST() 1300 } 1301 }; 1302 1303 static Property ccid_properties[] = { 1304 DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0), 1305 DEFINE_PROP_END_OF_LIST(), 1306 }; 1307 1308 static void ccid_class_initfn(ObjectClass *klass, void *data) 1309 { 1310 DeviceClass *dc = DEVICE_CLASS(klass); 1311 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 1312 1313 uc->init = ccid_initfn; 1314 uc->product_desc = "QEMU USB CCID"; 1315 uc->usb_desc = &desc_ccid; 1316 uc->handle_reset = ccid_handle_reset; 1317 uc->handle_control = ccid_handle_control; 1318 uc->handle_data = ccid_handle_data; 1319 uc->handle_destroy = ccid_handle_destroy; 1320 dc->desc = "CCID Rev 1.1 smartcard reader"; 1321 dc->vmsd = &ccid_vmstate; 1322 dc->props = ccid_properties; 1323 } 1324 1325 static TypeInfo ccid_info = { 1326 .name = CCID_DEV_NAME, 1327 .parent = TYPE_USB_DEVICE, 1328 .instance_size = sizeof(USBCCIDState), 1329 .class_init = ccid_class_initfn, 1330 }; 1331 1332 static void ccid_card_class_init(ObjectClass *klass, void *data) 1333 { 1334 DeviceClass *k = DEVICE_CLASS(klass); 1335 k->bus_type = TYPE_CCID_BUS; 1336 k->init = ccid_card_init; 1337 k->exit = ccid_card_exit; 1338 k->props = ccid_props; 1339 } 1340 1341 static TypeInfo ccid_card_type_info = { 1342 .name = TYPE_CCID_CARD, 1343 .parent = TYPE_DEVICE, 1344 .instance_size = sizeof(CCIDCardState), 1345 .abstract = true, 1346 .class_size = sizeof(CCIDCardClass), 1347 .class_init = ccid_card_class_init, 1348 }; 1349 1350 static void ccid_register_types(void) 1351 { 1352 type_register_static(&ccid_bus_info); 1353 type_register_static(&ccid_card_type_info); 1354 type_register_static(&ccid_info); 1355 usb_legacy_register(CCID_DEV_NAME, "ccid", NULL); 1356 } 1357 1358 type_init(ccid_register_types) 1359