root / hw / usb-ccid.c @ cff17894
History | View | Annotate | Download (41.6 kB)
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 it's 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.h" |
39 |
#include "usb.h" |
40 |
#include "usb-desc.h" |
41 |
#include "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 " QEMU_VERSION |
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 " QEMU_VERSION,
|
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 int 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 = 0; |
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 ret;
|
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 |
ret = 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 |
ret = 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 |
ret = USB_RET_STALL; |
663 |
break;
|
664 |
default:
|
665 |
DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n", |
666 |
request, value); |
667 |
ret = USB_RET_STALL; |
668 |
break;
|
669 |
} |
670 |
return ret;
|
671 |
} |
672 |
|
673 |
static bool ccid_card_inserted(USBCCIDState *s) |
674 |
{ |
675 |
return s->bmSlotICCState & SLOT_0_STATE_MASK;
|
676 |
} |
677 |
|
678 |
static uint8_t ccid_card_status(USBCCIDState *s)
|
679 |
{ |
680 |
return ccid_card_inserted(s)
|
681 |
? (s->powered ? |
682 |
ICC_STATUS_PRESENT_ACTIVE |
683 |
: ICC_STATUS_PRESENT_INACTIVE |
684 |
) |
685 |
: ICC_STATUS_NOT_PRESENT; |
686 |
} |
687 |
|
688 |
static uint8_t ccid_calc_status(USBCCIDState *s)
|
689 |
{ |
690 |
/*
|
691 |
* page 55, 6.2.6, calculation of bStatus from bmICCStatus and
|
692 |
* bmCommandStatus
|
693 |
*/
|
694 |
uint8_t ret = ccid_card_status(s) | (s->bmCommandStatus << 6);
|
695 |
DPRINTF(s, D_VERBOSE, "status = %d\n", ret);
|
696 |
return ret;
|
697 |
} |
698 |
|
699 |
static void ccid_reset_error_status(USBCCIDState *s) |
700 |
{ |
701 |
s->bError = ERROR_CMD_NOT_SUPPORTED; |
702 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
703 |
} |
704 |
|
705 |
static void ccid_write_slot_status(USBCCIDState *s, CCID_Header *recv) |
706 |
{ |
707 |
CCID_SlotStatus *h = ccid_reserve_recv_buf(s, sizeof(CCID_SlotStatus));
|
708 |
if (h == NULL) { |
709 |
return;
|
710 |
} |
711 |
h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus; |
712 |
h->b.hdr.dwLength = 0;
|
713 |
h->b.hdr.bSlot = recv->bSlot; |
714 |
h->b.hdr.bSeq = recv->bSeq; |
715 |
h->b.bStatus = ccid_calc_status(s); |
716 |
h->b.bError = s->bError; |
717 |
h->bClockStatus = CLOCK_STATUS_RUNNING; |
718 |
ccid_reset_error_status(s); |
719 |
} |
720 |
|
721 |
static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv) |
722 |
{ |
723 |
CCID_Parameter *h; |
724 |
uint32_t len = s->ulProtocolDataStructureSize; |
725 |
|
726 |
h = ccid_reserve_recv_buf(s, sizeof(CCID_Parameter) + len);
|
727 |
if (h == NULL) { |
728 |
return;
|
729 |
} |
730 |
h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_Parameters; |
731 |
h->b.hdr.dwLength = 0;
|
732 |
h->b.hdr.bSlot = recv->bSlot; |
733 |
h->b.hdr.bSeq = recv->bSeq; |
734 |
h->b.bStatus = ccid_calc_status(s); |
735 |
h->b.bError = s->bError; |
736 |
h->bProtocolNum = s->bProtocolNum; |
737 |
memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len); |
738 |
ccid_reset_error_status(s); |
739 |
} |
740 |
|
741 |
static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq, |
742 |
const uint8_t *data, uint32_t len)
|
743 |
{ |
744 |
CCID_DataBlock *p = ccid_reserve_recv_buf(s, sizeof(*p) + len);
|
745 |
|
746 |
if (p == NULL) { |
747 |
return;
|
748 |
} |
749 |
p->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock; |
750 |
p->b.hdr.dwLength = cpu_to_le32(len); |
751 |
p->b.hdr.bSlot = slot; |
752 |
p->b.hdr.bSeq = seq; |
753 |
p->b.bStatus = ccid_calc_status(s); |
754 |
p->b.bError = s->bError; |
755 |
if (p->b.bError) {
|
756 |
DPRINTF(s, D_VERBOSE, "error %d", p->b.bError);
|
757 |
} |
758 |
memcpy(p->abData, data, len); |
759 |
ccid_reset_error_status(s); |
760 |
} |
761 |
|
762 |
static void ccid_write_data_block_answer(USBCCIDState *s, |
763 |
const uint8_t *data, uint32_t len)
|
764 |
{ |
765 |
uint8_t seq; |
766 |
uint8_t slot; |
767 |
|
768 |
if (!ccid_has_pending_answers(s)) {
|
769 |
abort(); |
770 |
} |
771 |
ccid_remove_pending_answer(s, &slot, &seq); |
772 |
ccid_write_data_block(s, slot, seq, data, len); |
773 |
} |
774 |
|
775 |
static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv) |
776 |
{ |
777 |
const uint8_t *atr = NULL; |
778 |
uint32_t len = 0;
|
779 |
|
780 |
if (s->card) {
|
781 |
atr = ccid_card_get_atr(s->card, &len); |
782 |
} |
783 |
ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len); |
784 |
} |
785 |
|
786 |
static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv) |
787 |
{ |
788 |
CCID_SetParameters *ph = (CCID_SetParameters *) recv; |
789 |
uint32_t len = 0;
|
790 |
if ((ph->bProtocolNum & 3) == 0) { |
791 |
len = 5;
|
792 |
} |
793 |
if ((ph->bProtocolNum & 3) == 1) { |
794 |
len = 7;
|
795 |
} |
796 |
if (len == 0) { |
797 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
798 |
s->bError = 7; /* Protocol invalid or not supported */ |
799 |
return;
|
800 |
} |
801 |
s->bProtocolNum = ph->bProtocolNum; |
802 |
memcpy(s->abProtocolDataStructure, ph->abProtocolDataStructure, len); |
803 |
s->ulProtocolDataStructureSize = len; |
804 |
DPRINTF(s, 1, "%s: using len %d\n", __func__, len); |
805 |
} |
806 |
|
807 |
/*
|
808 |
* must be 5 bytes for T=0, 7 bytes for T=1
|
809 |
* See page 52
|
810 |
*/
|
811 |
static const uint8_t abDefaultProtocolDataStructure[7] = { |
812 |
0x77, 0x00, 0x00, 0x00, 0x00, 0xfe /*IFSC*/, 0x00 /*NAD*/ }; |
813 |
|
814 |
static void ccid_reset_parameters(USBCCIDState *s) |
815 |
{ |
816 |
uint32_t len = sizeof(abDefaultProtocolDataStructure);
|
817 |
|
818 |
s->bProtocolNum = 1; /* T=1 */ |
819 |
s->ulProtocolDataStructureSize = len; |
820 |
memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len); |
821 |
} |
822 |
|
823 |
static void ccid_report_error_failed(USBCCIDState *s, uint8_t error) |
824 |
{ |
825 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
826 |
s->bError = error; |
827 |
} |
828 |
|
829 |
/* NOTE: only a single slot is supported (SLOT_0) */
|
830 |
static void ccid_on_slot_change(USBCCIDState *s, bool full) |
831 |
{ |
832 |
/* RDR_to_PC_NotifySlotChange, 6.3.1 page 56 */
|
833 |
uint8_t current = s->bmSlotICCState; |
834 |
if (full) {
|
835 |
s->bmSlotICCState |= SLOT_0_STATE_MASK; |
836 |
} else {
|
837 |
s->bmSlotICCState &= ~SLOT_0_STATE_MASK; |
838 |
} |
839 |
if (current != s->bmSlotICCState) {
|
840 |
s->bmSlotICCState |= SLOT_0_CHANGED_MASK; |
841 |
} |
842 |
s->notify_slot_change = true;
|
843 |
usb_wakeup(s->intr); |
844 |
} |
845 |
|
846 |
static void ccid_write_data_block_error( |
847 |
USBCCIDState *s, uint8_t slot, uint8_t seq) |
848 |
{ |
849 |
ccid_write_data_block(s, slot, seq, NULL, 0); |
850 |
} |
851 |
|
852 |
static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv) |
853 |
{ |
854 |
uint32_t len; |
855 |
|
856 |
if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) {
|
857 |
DPRINTF(s, 1,
|
858 |
"usb-ccid: not sending apdu to client, no card connected\n");
|
859 |
ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq); |
860 |
return;
|
861 |
} |
862 |
len = le32_to_cpu(recv->hdr.dwLength); |
863 |
DPRINTF(s, 1, "%s: seq %d, len %d\n", __func__, |
864 |
recv->hdr.bSeq, len); |
865 |
ccid_add_pending_answer(s, (CCID_Header *)recv); |
866 |
if (s->card) {
|
867 |
ccid_card_apdu_from_guest(s->card, recv->abData, len); |
868 |
} else {
|
869 |
DPRINTF(s, D_WARN, "warning: discarded apdu\n");
|
870 |
} |
871 |
} |
872 |
|
873 |
/*
|
874 |
* Handle a single USB_TOKEN_OUT, return value returned to guest.
|
875 |
* Return value:
|
876 |
* 0 - all ok
|
877 |
* USB_RET_STALL - failed to handle packet
|
878 |
*/
|
879 |
static int ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p) |
880 |
{ |
881 |
CCID_Header *ccid_header; |
882 |
|
883 |
if (p->iov.size + s->bulk_out_pos > BULK_OUT_DATA_SIZE) {
|
884 |
return USB_RET_STALL;
|
885 |
} |
886 |
ccid_header = (CCID_Header *)s->bulk_out_data; |
887 |
usb_packet_copy(p, s->bulk_out_data + s->bulk_out_pos, p->iov.size); |
888 |
s->bulk_out_pos += p->iov.size; |
889 |
if (p->iov.size == CCID_MAX_PACKET_SIZE) {
|
890 |
DPRINTF(s, D_VERBOSE, |
891 |
"usb-ccid: bulk_in: expecting more packets (%zd/%d)\n",
|
892 |
p->iov.size, ccid_header->dwLength); |
893 |
return 0; |
894 |
} |
895 |
if (s->bulk_out_pos < 10) { |
896 |
DPRINTF(s, 1,
|
897 |
"%s: bad USB_TOKEN_OUT length, should be at least 10 bytes\n",
|
898 |
__func__); |
899 |
} else {
|
900 |
DPRINTF(s, D_MORE_INFO, "%s %x\n", __func__, ccid_header->bMessageType);
|
901 |
switch (ccid_header->bMessageType) {
|
902 |
case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus:
|
903 |
ccid_write_slot_status(s, ccid_header); |
904 |
break;
|
905 |
case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn:
|
906 |
DPRINTF(s, 1, "PowerOn: %d\n", |
907 |
((CCID_IccPowerOn *)(ccid_header))->bPowerSelect); |
908 |
s->powered = true;
|
909 |
if (!ccid_card_inserted(s)) {
|
910 |
ccid_report_error_failed(s, ERROR_ICC_MUTE); |
911 |
} |
912 |
/* atr is written regardless of error. */
|
913 |
ccid_write_data_block_atr(s, ccid_header); |
914 |
break;
|
915 |
case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff:
|
916 |
DPRINTF(s, 1, "PowerOff\n"); |
917 |
ccid_reset_error_status(s); |
918 |
s->powered = false;
|
919 |
ccid_write_slot_status(s, ccid_header); |
920 |
break;
|
921 |
case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock:
|
922 |
ccid_on_apdu_from_guest(s, (CCID_XferBlock *)s->bulk_out_data); |
923 |
break;
|
924 |
case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters:
|
925 |
ccid_reset_error_status(s); |
926 |
ccid_set_parameters(s, ccid_header); |
927 |
ccid_write_parameters(s, ccid_header); |
928 |
break;
|
929 |
case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters:
|
930 |
ccid_reset_error_status(s); |
931 |
ccid_reset_parameters(s); |
932 |
ccid_write_parameters(s, ccid_header); |
933 |
break;
|
934 |
case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters:
|
935 |
ccid_reset_error_status(s); |
936 |
ccid_write_parameters(s, ccid_header); |
937 |
break;
|
938 |
default:
|
939 |
DPRINTF(s, 1,
|
940 |
"handle_data: ERROR: unhandled message type %Xh\n",
|
941 |
ccid_header->bMessageType); |
942 |
/*
|
943 |
* The caller is expecting the device to respond, tell it we
|
944 |
* don't support the operation.
|
945 |
*/
|
946 |
ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED); |
947 |
ccid_write_slot_status(s, ccid_header); |
948 |
break;
|
949 |
} |
950 |
} |
951 |
s->bulk_out_pos = 0;
|
952 |
return 0; |
953 |
} |
954 |
|
955 |
static int ccid_bulk_in_copy_to_guest(USBCCIDState *s, USBPacket *p) |
956 |
{ |
957 |
int ret = 0; |
958 |
|
959 |
assert(p->iov.size > 0);
|
960 |
ccid_bulk_in_get(s); |
961 |
if (s->current_bulk_in != NULL) { |
962 |
ret = MIN(s->current_bulk_in->len - s->current_bulk_in->pos, |
963 |
p->iov.size); |
964 |
usb_packet_copy(p, s->current_bulk_in->data + |
965 |
s->current_bulk_in->pos, ret); |
966 |
s->current_bulk_in->pos += ret; |
967 |
if (s->current_bulk_in->pos == s->current_bulk_in->len) {
|
968 |
ccid_bulk_in_release(s); |
969 |
} |
970 |
} else {
|
971 |
/* return when device has no data - usb 2.0 spec Table 8-4 */
|
972 |
ret = USB_RET_NAK; |
973 |
} |
974 |
if (ret > 0) { |
975 |
DPRINTF(s, D_MORE_INFO, |
976 |
"%s: %zd/%d req/act to guest (BULK_IN)\n",
|
977 |
__func__, p->iov.size, ret); |
978 |
} |
979 |
if (ret != USB_RET_NAK && ret < p->iov.size) {
|
980 |
DPRINTF(s, 1,
|
981 |
"%s: returning short (EREMOTEIO) %d < %zd\n",
|
982 |
__func__, ret, p->iov.size); |
983 |
} |
984 |
return ret;
|
985 |
} |
986 |
|
987 |
static int ccid_handle_data(USBDevice *dev, USBPacket *p) |
988 |
{ |
989 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
990 |
int ret = 0; |
991 |
uint8_t buf[2];
|
992 |
|
993 |
switch (p->pid) {
|
994 |
case USB_TOKEN_OUT:
|
995 |
ret = ccid_handle_bulk_out(s, p); |
996 |
break;
|
997 |
|
998 |
case USB_TOKEN_IN:
|
999 |
switch (p->ep->nr) {
|
1000 |
case CCID_BULK_IN_EP:
|
1001 |
if (!p->iov.size) {
|
1002 |
ret = USB_RET_NAK; |
1003 |
} else {
|
1004 |
ret = ccid_bulk_in_copy_to_guest(s, p); |
1005 |
} |
1006 |
break;
|
1007 |
case CCID_INT_IN_EP:
|
1008 |
if (s->notify_slot_change) {
|
1009 |
/* page 56, RDR_to_PC_NotifySlotChange */
|
1010 |
buf[0] = CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange;
|
1011 |
buf[1] = s->bmSlotICCState;
|
1012 |
usb_packet_copy(p, buf, 2);
|
1013 |
ret = 2;
|
1014 |
s->notify_slot_change = false;
|
1015 |
s->bmSlotICCState &= ~SLOT_0_CHANGED_MASK; |
1016 |
DPRINTF(s, D_INFO, |
1017 |
"handle_data: int_in: notify_slot_change %X, "
|
1018 |
"requested len %zd\n",
|
1019 |
s->bmSlotICCState, p->iov.size); |
1020 |
} |
1021 |
break;
|
1022 |
default:
|
1023 |
DPRINTF(s, 1, "Bad endpoint\n"); |
1024 |
ret = USB_RET_STALL; |
1025 |
break;
|
1026 |
} |
1027 |
break;
|
1028 |
default:
|
1029 |
DPRINTF(s, 1, "Bad token\n"); |
1030 |
ret = USB_RET_STALL; |
1031 |
break;
|
1032 |
} |
1033 |
|
1034 |
return ret;
|
1035 |
} |
1036 |
|
1037 |
static void ccid_handle_destroy(USBDevice *dev) |
1038 |
{ |
1039 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
1040 |
|
1041 |
ccid_bulk_in_clear(s); |
1042 |
} |
1043 |
|
1044 |
static void ccid_flush_pending_answers(USBCCIDState *s) |
1045 |
{ |
1046 |
while (ccid_has_pending_answers(s)) {
|
1047 |
ccid_write_data_block_answer(s, NULL, 0); |
1048 |
} |
1049 |
} |
1050 |
|
1051 |
static Answer *ccid_peek_next_answer(USBCCIDState *s)
|
1052 |
{ |
1053 |
return s->pending_answers_num == 0 |
1054 |
? NULL
|
1055 |
: &s->pending_answers[s->pending_answers_start % PENDING_ANSWERS_NUM]; |
1056 |
} |
1057 |
|
1058 |
static struct BusInfo ccid_bus_info = { |
1059 |
.name = "ccid-bus",
|
1060 |
.size = sizeof(CCIDBus),
|
1061 |
.props = (Property[]) { |
1062 |
DEFINE_PROP_UINT32("slot", struct CCIDCardState, slot, 0), |
1063 |
DEFINE_PROP_END_OF_LIST(), |
1064 |
} |
1065 |
}; |
1066 |
|
1067 |
void ccid_card_send_apdu_to_guest(CCIDCardState *card,
|
1068 |
uint8_t *apdu, uint32_t len) |
1069 |
{ |
1070 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev.qdev, |
1071 |
card->qdev.parent_bus->parent); |
1072 |
Answer *answer; |
1073 |
|
1074 |
if (!ccid_has_pending_answers(s)) {
|
1075 |
DPRINTF(s, 1, "CCID ERROR: got an APDU without pending answers\n"); |
1076 |
return;
|
1077 |
} |
1078 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
1079 |
answer = ccid_peek_next_answer(s); |
1080 |
if (answer == NULL) { |
1081 |
abort(); |
1082 |
} |
1083 |
DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n", |
1084 |
len, answer->seq, answer->slot); |
1085 |
ccid_write_data_block_answer(s, apdu, len); |
1086 |
} |
1087 |
|
1088 |
void ccid_card_card_removed(CCIDCardState *card)
|
1089 |
{ |
1090 |
USBCCIDState *s = |
1091 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1092 |
|
1093 |
ccid_on_slot_change(s, false);
|
1094 |
ccid_flush_pending_answers(s); |
1095 |
ccid_reset(s); |
1096 |
} |
1097 |
|
1098 |
int ccid_card_ccid_attach(CCIDCardState *card)
|
1099 |
{ |
1100 |
USBCCIDState *s = |
1101 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1102 |
|
1103 |
DPRINTF(s, 1, "CCID Attach\n"); |
1104 |
if (s->migration_state == MIGRATION_MIGRATED) {
|
1105 |
s->migration_state = MIGRATION_NONE; |
1106 |
} |
1107 |
return 0; |
1108 |
} |
1109 |
|
1110 |
void ccid_card_ccid_detach(CCIDCardState *card)
|
1111 |
{ |
1112 |
USBCCIDState *s = |
1113 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1114 |
|
1115 |
DPRINTF(s, 1, "CCID Detach\n"); |
1116 |
if (ccid_card_inserted(s)) {
|
1117 |
ccid_on_slot_change(s, false);
|
1118 |
} |
1119 |
ccid_detach(s); |
1120 |
} |
1121 |
|
1122 |
void ccid_card_card_error(CCIDCardState *card, uint64_t error)
|
1123 |
{ |
1124 |
USBCCIDState *s = |
1125 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1126 |
|
1127 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
1128 |
s->last_answer_error = error; |
1129 |
DPRINTF(s, 1, "VSC_Error: %" PRIX64 "\n", s->last_answer_error); |
1130 |
/* TODO: these errors should be more verbose and propagated to the guest.*/
|
1131 |
/*
|
1132 |
* We flush all pending answers on CardRemove message in ccid-card-passthru,
|
1133 |
* so check that first to not trigger abort
|
1134 |
*/
|
1135 |
if (ccid_has_pending_answers(s)) {
|
1136 |
ccid_write_data_block_answer(s, NULL, 0); |
1137 |
} |
1138 |
} |
1139 |
|
1140 |
void ccid_card_card_inserted(CCIDCardState *card)
|
1141 |
{ |
1142 |
USBCCIDState *s = |
1143 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1144 |
|
1145 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
1146 |
ccid_flush_pending_answers(s); |
1147 |
ccid_on_slot_change(s, true);
|
1148 |
} |
1149 |
|
1150 |
static int ccid_card_exit(DeviceState *qdev) |
1151 |
{ |
1152 |
int ret = 0; |
1153 |
CCIDCardState *card = CCID_CARD(qdev); |
1154 |
USBCCIDState *s = |
1155 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1156 |
|
1157 |
if (ccid_card_inserted(s)) {
|
1158 |
ccid_card_card_removed(card); |
1159 |
} |
1160 |
ret = ccid_card_exitfn(card); |
1161 |
s->card = NULL;
|
1162 |
return ret;
|
1163 |
} |
1164 |
|
1165 |
static int ccid_card_init(DeviceState *qdev) |
1166 |
{ |
1167 |
CCIDCardState *card = CCID_CARD(qdev); |
1168 |
USBCCIDState *s = |
1169 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
1170 |
int ret = 0; |
1171 |
|
1172 |
if (card->slot != 0) { |
1173 |
error_report("Warning: usb-ccid supports one slot, can't add %d",
|
1174 |
card->slot); |
1175 |
return -1; |
1176 |
} |
1177 |
if (s->card != NULL) { |
1178 |
error_report("Warning: usb-ccid card already full, not adding");
|
1179 |
return -1; |
1180 |
} |
1181 |
ret = ccid_card_initfn(card); |
1182 |
if (ret == 0) { |
1183 |
s->card = card; |
1184 |
} |
1185 |
return ret;
|
1186 |
} |
1187 |
|
1188 |
static int ccid_initfn(USBDevice *dev) |
1189 |
{ |
1190 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
1191 |
|
1192 |
usb_desc_init(dev); |
1193 |
qbus_create_inplace(&s->bus.qbus, &ccid_bus_info, &dev->qdev, NULL);
|
1194 |
s->intr = usb_ep_get(dev, USB_TOKEN_IN, CCID_INT_IN_EP); |
1195 |
s->bus.qbus.allow_hotplug = 1;
|
1196 |
s->card = NULL;
|
1197 |
s->migration_state = MIGRATION_NONE; |
1198 |
s->migration_target_ip = 0;
|
1199 |
s->migration_target_port = 0;
|
1200 |
s->dev.speed = USB_SPEED_FULL; |
1201 |
s->dev.speedmask = USB_SPEED_MASK_FULL; |
1202 |
s->notify_slot_change = false;
|
1203 |
s->powered = true;
|
1204 |
s->pending_answers_num = 0;
|
1205 |
s->last_answer_error = 0;
|
1206 |
s->bulk_in_pending_start = 0;
|
1207 |
s->bulk_in_pending_end = 0;
|
1208 |
s->current_bulk_in = NULL;
|
1209 |
ccid_reset_error_status(s); |
1210 |
s->bulk_out_pos = 0;
|
1211 |
ccid_reset_parameters(s); |
1212 |
ccid_reset(s); |
1213 |
return 0; |
1214 |
} |
1215 |
|
1216 |
static int ccid_post_load(void *opaque, int version_id) |
1217 |
{ |
1218 |
USBCCIDState *s = opaque; |
1219 |
|
1220 |
/*
|
1221 |
* This must be done after usb_device_attach, which sets state to ATTACHED,
|
1222 |
* while it must be DEFAULT in order to accept packets (like it is after
|
1223 |
* reset, but reset will reset our addr and call our reset handler which
|
1224 |
* may change state, and we don't want to do that when migrating).
|
1225 |
*/
|
1226 |
s->dev.state = s->state_vmstate; |
1227 |
return 0; |
1228 |
} |
1229 |
|
1230 |
static void ccid_pre_save(void *opaque) |
1231 |
{ |
1232 |
USBCCIDState *s = opaque; |
1233 |
|
1234 |
s->state_vmstate = s->dev.state; |
1235 |
if (s->dev.attached) {
|
1236 |
/*
|
1237 |
* Migrating an open device, ignore reconnection CHR_EVENT to avoid an
|
1238 |
* erroneous detach.
|
1239 |
*/
|
1240 |
s->migration_state = MIGRATION_MIGRATED; |
1241 |
} |
1242 |
} |
1243 |
|
1244 |
static VMStateDescription bulk_in_vmstate = {
|
1245 |
.name = "CCID BulkIn state",
|
1246 |
.version_id = 1,
|
1247 |
.minimum_version_id = 1,
|
1248 |
.fields = (VMStateField[]) { |
1249 |
VMSTATE_BUFFER(data, BulkIn), |
1250 |
VMSTATE_UINT32(len, BulkIn), |
1251 |
VMSTATE_UINT32(pos, BulkIn), |
1252 |
VMSTATE_END_OF_LIST() |
1253 |
} |
1254 |
}; |
1255 |
|
1256 |
static VMStateDescription answer_vmstate = {
|
1257 |
.name = "CCID Answer state",
|
1258 |
.version_id = 1,
|
1259 |
.minimum_version_id = 1,
|
1260 |
.fields = (VMStateField[]) { |
1261 |
VMSTATE_UINT8(slot, Answer), |
1262 |
VMSTATE_UINT8(seq, Answer), |
1263 |
VMSTATE_END_OF_LIST() |
1264 |
} |
1265 |
}; |
1266 |
|
1267 |
static VMStateDescription usb_device_vmstate = {
|
1268 |
.name = "usb_device",
|
1269 |
.version_id = 1,
|
1270 |
.minimum_version_id = 1,
|
1271 |
.fields = (VMStateField[]) { |
1272 |
VMSTATE_UINT8(addr, USBDevice), |
1273 |
VMSTATE_BUFFER(setup_buf, USBDevice), |
1274 |
VMSTATE_BUFFER(data_buf, USBDevice), |
1275 |
VMSTATE_END_OF_LIST() |
1276 |
} |
1277 |
}; |
1278 |
|
1279 |
static VMStateDescription ccid_vmstate = {
|
1280 |
.name = CCID_DEV_NAME, |
1281 |
.version_id = 1,
|
1282 |
.minimum_version_id = 1,
|
1283 |
.post_load = ccid_post_load, |
1284 |
.pre_save = ccid_pre_save, |
1285 |
.fields = (VMStateField[]) { |
1286 |
VMSTATE_STRUCT(dev, USBCCIDState, 1, usb_device_vmstate, USBDevice),
|
1287 |
VMSTATE_UINT8(debug, USBCCIDState), |
1288 |
VMSTATE_BUFFER(bulk_out_data, USBCCIDState), |
1289 |
VMSTATE_UINT32(bulk_out_pos, USBCCIDState), |
1290 |
VMSTATE_UINT8(bmSlotICCState, USBCCIDState), |
1291 |
VMSTATE_UINT8(powered, USBCCIDState), |
1292 |
VMSTATE_UINT8(notify_slot_change, USBCCIDState), |
1293 |
VMSTATE_UINT64(last_answer_error, USBCCIDState), |
1294 |
VMSTATE_UINT8(bError, USBCCIDState), |
1295 |
VMSTATE_UINT8(bmCommandStatus, USBCCIDState), |
1296 |
VMSTATE_UINT8(bProtocolNum, USBCCIDState), |
1297 |
VMSTATE_BUFFER(abProtocolDataStructure, USBCCIDState), |
1298 |
VMSTATE_UINT32(ulProtocolDataStructureSize, USBCCIDState), |
1299 |
VMSTATE_STRUCT_ARRAY(bulk_in_pending, USBCCIDState, |
1300 |
BULK_IN_PENDING_NUM, 1, bulk_in_vmstate, BulkIn),
|
1301 |
VMSTATE_UINT32(bulk_in_pending_start, USBCCIDState), |
1302 |
VMSTATE_UINT32(bulk_in_pending_end, USBCCIDState), |
1303 |
VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState, |
1304 |
PENDING_ANSWERS_NUM, 1, answer_vmstate, Answer),
|
1305 |
VMSTATE_UINT32(pending_answers_num, USBCCIDState), |
1306 |
VMSTATE_UINT8(migration_state, USBCCIDState), |
1307 |
VMSTATE_UINT32(state_vmstate, USBCCIDState), |
1308 |
VMSTATE_END_OF_LIST() |
1309 |
} |
1310 |
}; |
1311 |
|
1312 |
static Property ccid_properties[] = {
|
1313 |
DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0), |
1314 |
DEFINE_PROP_END_OF_LIST(), |
1315 |
}; |
1316 |
|
1317 |
static void ccid_class_initfn(ObjectClass *klass, void *data) |
1318 |
{ |
1319 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1320 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
1321 |
|
1322 |
uc->init = ccid_initfn; |
1323 |
uc->product_desc = "QEMU USB CCID";
|
1324 |
uc->usb_desc = &desc_ccid; |
1325 |
uc->handle_reset = ccid_handle_reset; |
1326 |
uc->handle_control = ccid_handle_control; |
1327 |
uc->handle_data = ccid_handle_data; |
1328 |
uc->handle_destroy = ccid_handle_destroy; |
1329 |
dc->desc = "CCID Rev 1.1 smartcard reader";
|
1330 |
dc->vmsd = &ccid_vmstate; |
1331 |
dc->props = ccid_properties; |
1332 |
} |
1333 |
|
1334 |
static TypeInfo ccid_info = {
|
1335 |
.name = CCID_DEV_NAME, |
1336 |
.parent = TYPE_USB_DEVICE, |
1337 |
.instance_size = sizeof(USBCCIDState),
|
1338 |
.class_init = ccid_class_initfn, |
1339 |
}; |
1340 |
|
1341 |
static void ccid_card_class_init(ObjectClass *klass, void *data) |
1342 |
{ |
1343 |
DeviceClass *k = DEVICE_CLASS(klass); |
1344 |
k->bus_info = &ccid_bus_info; |
1345 |
k->init = ccid_card_init; |
1346 |
k->exit = ccid_card_exit; |
1347 |
} |
1348 |
|
1349 |
static TypeInfo ccid_card_type_info = {
|
1350 |
.name = TYPE_CCID_CARD, |
1351 |
.parent = TYPE_DEVICE, |
1352 |
.instance_size = sizeof(CCIDCardState),
|
1353 |
.abstract = true,
|
1354 |
.class_size = sizeof(CCIDCardClass),
|
1355 |
.class_init = ccid_card_class_init, |
1356 |
}; |
1357 |
|
1358 |
static void ccid_register_types(void) |
1359 |
{ |
1360 |
type_register_static(&ccid_card_type_info); |
1361 |
type_register_static(&ccid_info); |
1362 |
usb_legacy_register(CCID_DEV_NAME, "ccid", NULL); |
1363 |
} |
1364 |
|
1365 |
type_init(ccid_register_types) |