[qemu.git] / hw / ccid-card-passthru.c

/*
 * CCID Passthru Card Device emulation
 *
 * Copyright (c) 2011 Red Hat.
 * Written by Alon Levy.
 *
 * This work is licensed under the terms of the GNU GPL, version 2.1 or later.
 * See the COPYING file in the top-level directory.
 */

#include "qemu-char.h"
#include "qemu_socket.h"
#include "monitor.h"
#include "hw/ccid.h"
#include "libcacard/vscard_common.h"

#define DPRINTF(card, lvl, fmt, ...)                    \
do {                                                    \
    if (lvl <= card->debug) {                           \
        printf("ccid-card-passthru: " fmt , ## __VA_ARGS__);     \
    }                                                   \
} while (0)

#define D_WARN 1
#define D_INFO 2
#define D_MORE_INFO 3
#define D_VERBOSE 4

/* TODO: do we still need this? */
uint8_t DEFAULT_ATR[] = {
/*
 * From some example somewhere
 * 0x3B, 0xB0, 0x18, 0x00, 0xD1, 0x81, 0x05, 0xB1, 0x40, 0x38, 0x1F, 0x03, 0x28
 */

/* From an Athena smart card */
 0x3B, 0xD5, 0x18, 0xFF, 0x80, 0x91, 0xFE, 0x1F, 0xC3, 0x80, 0x73, 0xC8, 0x21,
 0x13, 0x08
};


#define PASSTHRU_DEV_NAME "ccid-card-passthru"
#define VSCARD_IN_SIZE 65536

/* maximum size of ATR - from 7816-3 */
#define MAX_ATR_SIZE        40

typedef struct PassthruState PassthruState;

struct PassthruState {
    CCIDCardState base;
    CharDriverState *cs;
    uint8_t  vscard_in_data[VSCARD_IN_SIZE];
    uint32_t vscard_in_pos;
    uint32_t vscard_in_hdr;
    uint8_t  atr[MAX_ATR_SIZE];
    uint8_t  atr_length;
    uint8_t  debug;
};

/*
 * VSCard protocol over chardev
 * This code should not depend on the card type.
 */

static void ccid_card_vscard_send_msg(PassthruState *s,
        VSCMsgType type, uint32_t reader_id,
        const uint8_t *payload, uint32_t length)
{
    VSCMsgHeader scr_msg_header;

    scr_msg_header.type = htonl(type);
    scr_msg_header.reader_id = htonl(reader_id);
    scr_msg_header.length = htonl(length);
    qemu_chr_write(s->cs, (uint8_t *)&scr_msg_header, sizeof(VSCMsgHeader));
    qemu_chr_write(s->cs, payload, length);
}

static void ccid_card_vscard_send_apdu(PassthruState *s,
    const uint8_t *apdu, uint32_t length)
{
    ccid_card_vscard_send_msg(
        s, VSC_APDU, VSCARD_MINIMAL_READER_ID, apdu, length);
}

static void ccid_card_vscard_send_error(PassthruState *s,
                    uint32_t reader_id, VSCErrorCode code)
{
    VSCMsgError msg = {.code = htonl(code)};

    ccid_card_vscard_send_msg(
        s, VSC_Error, reader_id, (uint8_t *)&msg, sizeof(msg));
}

static void ccid_card_vscard_send_init(PassthruState *s)
{
    VSCMsgInit msg = {
        .version = htonl(VSCARD_VERSION),
        .magic = VSCARD_MAGIC,
        .capabilities = {0}
    };

    ccid_card_vscard_send_msg(s, VSC_Init, VSCARD_UNDEFINED_READER_ID,
                         (uint8_t *)&msg, sizeof(msg));
}

static int ccid_card_vscard_can_read(void *opaque)
{
    PassthruState *card = opaque;

    return VSCARD_IN_SIZE >= card->vscard_in_pos ?
           VSCARD_IN_SIZE - card->vscard_in_pos : 0;
}

static void ccid_card_vscard_handle_init(
    PassthruState *card, VSCMsgHeader *hdr, VSCMsgInit *init)
{
    uint32_t *capabilities;
    int num_capabilities;
    int i;

    capabilities = init->capabilities;
    num_capabilities =
        1 + ((hdr->length - sizeof(VSCMsgInit)) / sizeof(uint32_t));
    init->version = ntohl(init->version);
    for (i = 0 ; i < num_capabilities; ++i) {
        capabilities[i] = ntohl(capabilities[i]);
    }
    if (init->magic != VSCARD_MAGIC) {
        error_report("wrong magic");
        /* we can't disconnect the chardev */
    }
    if (init->version != VSCARD_VERSION) {
        DPRINTF(card, D_WARN,
            "got version %d, have %d", init->version, VSCARD_VERSION);
    }
    /* future handling of capabilities, none exist atm */
    ccid_card_vscard_send_init(card);
}

static void ccid_card_vscard_handle_message(PassthruState *card,
    VSCMsgHeader *scr_msg_header)
{
    uint8_t *data = (uint8_t *)&scr_msg_header[1];

    switch (scr_msg_header->type) {
    case VSC_ATR:
        DPRINTF(card, D_INFO, "VSC_ATR %d\n", scr_msg_header->length);
        if (scr_msg_header->length > MAX_ATR_SIZE) {
            error_report("ATR size exceeds spec, ignoring");
            ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
                                        VSC_GENERAL_ERROR);
        }
        memcpy(card->atr, data, scr_msg_header->length);
        card->atr_length = scr_msg_header->length;
        ccid_card_card_inserted(&card->base);
        ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
                                    VSC_SUCCESS);
        break;
    case VSC_APDU:
        ccid_card_send_apdu_to_guest(
            &card->base, data, scr_msg_header->length);
        break;
    case VSC_CardRemove:
        DPRINTF(card, D_INFO, "VSC_CardRemove\n");
        ccid_card_card_removed(&card->base);
        ccid_card_vscard_send_error(card,
            scr_msg_header->reader_id, VSC_SUCCESS);
        break;
    case VSC_Init:
        ccid_card_vscard_handle_init(
            card, scr_msg_header, (VSCMsgInit *)data);
        break;
    case VSC_Error:
        ccid_card_card_error(&card->base, *(uint32_t *)data);
        break;
    case VSC_ReaderAdd:
        if (ccid_card_ccid_attach(&card->base) < 0) {
            ccid_card_vscard_send_error(card, VSCARD_UNDEFINED_READER_ID,
                                      VSC_CANNOT_ADD_MORE_READERS);
        } else {
            ccid_card_vscard_send_error(card, VSCARD_MINIMAL_READER_ID,
                                        VSC_SUCCESS);
        }
        break;
    case VSC_ReaderRemove:
        ccid_card_ccid_detach(&card->base);
        ccid_card_vscard_send_error(card,
            scr_msg_header->reader_id, VSC_SUCCESS);
        break;
    default:
        printf("usb-ccid: chardev: unexpected message of type %X\n",
               scr_msg_header->type);
        ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
            VSC_GENERAL_ERROR);
    }
}

static void ccid_card_vscard_drop_connection(PassthruState *card)
{
    qemu_chr_close(card->cs);
    card->vscard_in_pos = card->vscard_in_hdr = 0;
}

static void ccid_card_vscard_read(void *opaque, const uint8_t *buf, int size)
{
    PassthruState *card = opaque;
    VSCMsgHeader *hdr;

    if (card->vscard_in_pos + size > VSCARD_IN_SIZE) {
        error_report(
            "no room for data: pos %d +  size %d > %d. dropping connection.",
            card->vscard_in_pos, size, VSCARD_IN_SIZE);
        ccid_card_vscard_drop_connection(card);
        return;
    }
    assert(card->vscard_in_pos < VSCARD_IN_SIZE);
    assert(card->vscard_in_hdr < VSCARD_IN_SIZE);
    memcpy(card->vscard_in_data + card->vscard_in_pos, buf, size);
    card->vscard_in_pos += size;
    hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr);

    while ((card->vscard_in_pos - card->vscard_in_hdr >= sizeof(VSCMsgHeader))
         &&(card->vscard_in_pos - card->vscard_in_hdr >=
                                  sizeof(VSCMsgHeader) + ntohl(hdr->length))) {
        hdr->reader_id = ntohl(hdr->reader_id);
        hdr->length = ntohl(hdr->length);
        hdr->type = ntohl(hdr->type);
        ccid_card_vscard_handle_message(card, hdr);
        card->vscard_in_hdr += hdr->length + sizeof(VSCMsgHeader);
        hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr);
    }
    if (card->vscard_in_hdr == card->vscard_in_pos) {
        card->vscard_in_pos = card->vscard_in_hdr = 0;
    }
}

static void ccid_card_vscard_event(void *opaque, int event)
{
    PassthruState *card = opaque;

    switch (event) {
    case CHR_EVENT_BREAK:
        card->vscard_in_pos = card->vscard_in_hdr = 0;
        break;
    case CHR_EVENT_FOCUS:
        break;
    case CHR_EVENT_OPENED:
        DPRINTF(card, D_INFO, "%s: CHR_EVENT_OPENED\n", __func__);
        break;
    }
}

/* End VSCard handling */

static void passthru_apdu_from_guest(
    CCIDCardState *base, const uint8_t *apdu, uint32_t len)
{
    PassthruState *card = DO_UPCAST(PassthruState, base, base);

    if (!card->cs) {
        printf("ccid-passthru: no chardev, discarding apdu length %d\n", len);
        return;
    }
    ccid_card_vscard_send_apdu(card, apdu, len);
}

static const uint8_t *passthru_get_atr(CCIDCardState *base, uint32_t *len)
{
    PassthruState *card = DO_UPCAST(PassthruState, base, base);

    *len = card->atr_length;
    return card->atr;
}

static int passthru_initfn(CCIDCardState *base)
{
    PassthruState *card = DO_UPCAST(PassthruState, base, base);

    card->vscard_in_pos = 0;
    card->vscard_in_hdr = 0;
    if (card->cs) {
        DPRINTF(card, D_INFO, "initing chardev\n");
        qemu_chr_add_handlers(card->cs,
            ccid_card_vscard_can_read,
            ccid_card_vscard_read,
            ccid_card_vscard_event, card);
        ccid_card_vscard_send_init(card);
    } else {
        error_report("missing chardev");
        return -1;
    }
    assert(sizeof(DEFAULT_ATR) <= MAX_ATR_SIZE);
    memcpy(card->atr, DEFAULT_ATR, sizeof(DEFAULT_ATR));
    card->atr_length = sizeof(DEFAULT_ATR);
    return 0;
}

static int passthru_exitfn(CCIDCardState *base)
{
    return 0;
}

static VMStateDescription passthru_vmstate = {
    .name = PASSTHRU_DEV_NAME,
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_BUFFER(vscard_in_data, PassthruState),
        VMSTATE_UINT32(vscard_in_pos, PassthruState),
        VMSTATE_UINT32(vscard_in_hdr, PassthruState),
        VMSTATE_BUFFER(atr, PassthruState),
        VMSTATE_UINT8(atr_length, PassthruState),
        VMSTATE_END_OF_LIST()
    }
};

static CCIDCardInfo passthru_card_info = {
    .qdev.name = PASSTHRU_DEV_NAME,
    .qdev.desc = "passthrough smartcard",
    .qdev.size = sizeof(PassthruState),
    .qdev.vmsd = &passthru_vmstate,
    .initfn = passthru_initfn,
    .exitfn = passthru_exitfn,
    .get_atr = passthru_get_atr,
    .apdu_from_guest = passthru_apdu_from_guest,
    .qdev.props     = (Property[]) {
        DEFINE_PROP_CHR("chardev", PassthruState, cs),
        DEFINE_PROP_UINT8("debug", PassthruState, debug, 0),
        DEFINE_PROP_END_OF_LIST(),
    },
};

static void ccid_card_passthru_register_devices(void)
{
    ccid_card_qdev_register(&passthru_card_info);
}

device_init(ccid_card_passthru_register_devices)
Commit	Line	Data
edbb2136 AL	1	/*
	2	* CCID Passthru Card Device emulation
	3	*
	4	* Copyright (c) 2011 Red Hat.
	5	* Written by Alon Levy.
	6	*
	7	* This work is licensed under the terms of the GNU GPL, version 2.1 or later.
	8	* See the COPYING file in the top-level directory.
	9	*/
	10
edbb2136	11	#include "qemu-char.h"
6d65516f	12	#include "qemu_socket.h"
edbb2136 AL	13	#include "monitor.h"
	14	#include "hw/ccid.h"
	15	#include "libcacard/vscard_common.h"
	16
	17	#define DPRINTF(card, lvl, fmt, ...) \
	18	do { \
	19	if (lvl <= card->debug) { \
	20	printf("ccid-card-passthru: " fmt , ## __VA_ARGS__); \
	21	} \
	22	} while (0)
	23
	24	#define D_WARN 1
	25	#define D_INFO 2
	26	#define D_MORE_INFO 3
	27	#define D_VERBOSE 4
	28
	29	/* TODO: do we still need this? */
	30	uint8_t DEFAULT_ATR[] = {
	31	/*
	32	* From some example somewhere
	33	* 0x3B, 0xB0, 0x18, 0x00, 0xD1, 0x81, 0x05, 0xB1, 0x40, 0x38, 0x1F, 0x03, 0x28
	34	*/
	35
	36	/* From an Athena smart card */
	37	0x3B, 0xD5, 0x18, 0xFF, 0x80, 0x91, 0xFE, 0x1F, 0xC3, 0x80, 0x73, 0xC8, 0x21,
	38	0x13, 0x08
	39	};
	40
	41
	42	#define PASSTHRU_DEV_NAME "ccid-card-passthru"
	43	#define VSCARD_IN_SIZE 65536
	44
	45	/* maximum size of ATR - from 7816-3 */
	46	#define MAX_ATR_SIZE 40
	47
	48	typedef struct PassthruState PassthruState;
	49
	50	struct PassthruState {
	51	CCIDCardState base;
	52	CharDriverState *cs;
	53	uint8_t vscard_in_data[VSCARD_IN_SIZE];
	54	uint32_t vscard_in_pos;
	55	uint32_t vscard_in_hdr;
	56	uint8_t atr[MAX_ATR_SIZE];
	57	uint8_t atr_length;
	58	uint8_t debug;
	59	};
	60
	61	/*
	62	* VSCard protocol over chardev
	63	* This code should not depend on the card type.
	64	*/
	65
	66	static void ccid_card_vscard_send_msg(PassthruState *s,
	67	VSCMsgType type, uint32_t reader_id,
	68	const uint8_t *payload, uint32_t length)
	69	{
	70	VSCMsgHeader scr_msg_header;
	71
	72	scr_msg_header.type = htonl(type);
	73	scr_msg_header.reader_id = htonl(reader_id);
	74	scr_msg_header.length = htonl(length);
	75	qemu_chr_write(s->cs, (uint8_t *)&scr_msg_header, sizeof(VSCMsgHeader));
	76	qemu_chr_write(s->cs, payload, length);
77	}
78
79	static void ccid_card_vscard_send_apdu(PassthruState *s,
80	const uint8_t *apdu, uint32_t length)
81	{
82	ccid_card_vscard_send_msg(
83	s, VSC_APDU, VSCARD_MINIMAL_READER_ID, apdu, length);
84	}
85
86	static void ccid_card_vscard_send_error(PassthruState *s,
87	uint32_t reader_id, VSCErrorCode code)
88	{
89	VSCMsgError msg = {.code = htonl(code)};
90
91	ccid_card_vscard_send_msg(
92	s, VSC_Error, reader_id, (uint8_t *)&msg, sizeof(msg));
93	}
94
95	static void ccid_card_vscard_send_init(PassthruState *s)
96	{
97	VSCMsgInit msg = {
98	.version = htonl(VSCARD_VERSION),
99	.magic = VSCARD_MAGIC,
100	.capabilities = {0}
101	};
102
103	ccid_card_vscard_send_msg(s, VSC_Init, VSCARD_UNDEFINED_READER_ID,
104	(uint8_t *)&msg, sizeof(msg));
105	}
106
107	static int ccid_card_vscard_can_read(void *opaque)
108	{
109	PassthruState *card = opaque;
110
111	return VSCARD_IN_SIZE >= card->vscard_in_pos ?
112	VSCARD_IN_SIZE - card->vscard_in_pos : 0;
113	}
114
115	static void ccid_card_vscard_handle_init(
116	PassthruState card, VSCMsgHeader hdr, VSCMsgInit *init)
117	{
118	uint32_t *capabilities;
119	int num_capabilities;
120	int i;
121
122	capabilities = init->capabilities;
123	num_capabilities =
124	1 + ((hdr->length - sizeof(VSCMsgInit)) / sizeof(uint32_t));
125	init->version = ntohl(init->version);
126	for (i = 0 ; i < num_capabilities; ++i) {
127	capabilities[i] = ntohl(capabilities[i]);
128	}
129	if (init->magic != VSCARD_MAGIC) {
130	error_report("wrong magic");
131	/* we can't disconnect the chardev */
132	}
133	if (init->version != VSCARD_VERSION) {
134	DPRINTF(card, D_WARN,
135	"got version %d, have %d", init->version, VSCARD_VERSION);
136	}
137	/* future handling of capabilities, none exist atm */
138	ccid_card_vscard_send_init(card);
139	}
140
141	static void ccid_card_vscard_handle_message(PassthruState *card,
142	VSCMsgHeader *scr_msg_header)
143	{
144	uint8_t data = (uint8_t )&scr_msg_header[1];
145
146	switch (scr_msg_header->type) {
147	case VSC_ATR:
148	DPRINTF(card, D_INFO, "VSC_ATR %d\n", scr_msg_header->length);
149	if (scr_msg_header->length > MAX_ATR_SIZE) {
150	error_report("ATR size exceeds spec, ignoring");
151	ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
152	VSC_GENERAL_ERROR);
153	}
154	memcpy(card->atr, data, scr_msg_header->length);
155	card->atr_length = scr_msg_header->length;
156	ccid_card_card_inserted(&card->base);
157	ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
158	VSC_SUCCESS);
159	break;
160	case VSC_APDU:
161	ccid_card_send_apdu_to_guest(
162	&card->base, data, scr_msg_header->length);
163	break;
164	case VSC_CardRemove:
165	DPRINTF(card, D_INFO, "VSC_CardRemove\n");
166	ccid_card_card_removed(&card->base);
167	ccid_card_vscard_send_error(card,
168	scr_msg_header->reader_id, VSC_SUCCESS);
169	break;
170	case VSC_Init:
171	ccid_card_vscard_handle_init(
172	card, scr_msg_header, (VSCMsgInit *)data);
173	break;
174	case VSC_Error:
175	ccid_card_card_error(&card->base, (uint32_t )data);
176	break;
177	case VSC_ReaderAdd:
178	if (ccid_card_ccid_attach(&card->base) < 0) {
179	ccid_card_vscard_send_error(card, VSCARD_UNDEFINED_READER_ID,
180	VSC_CANNOT_ADD_MORE_READERS);
181	} else {
182	ccid_card_vscard_send_error(card, VSCARD_MINIMAL_READER_ID,
183	VSC_SUCCESS);
184	}
185	break;
186	case VSC_ReaderRemove:
187	ccid_card_ccid_detach(&card->base);
188	ccid_card_vscard_send_error(card,
189	scr_msg_header->reader_id, VSC_SUCCESS);
190	break;
191	default:
192	printf("usb-ccid: chardev: unexpected message of type %X\n",
193	scr_msg_header->type);
194	ccid_card_vscard_send_error(card, scr_msg_header->reader_id,
195	VSC_GENERAL_ERROR);
196	}
197	}
198
199	static void ccid_card_vscard_drop_connection(PassthruState *card)
200	{
201	qemu_chr_close(card->cs);
202	card->vscard_in_pos = card->vscard_in_hdr = 0;
203	}
204
205	static void ccid_card_vscard_read(void opaque, const uint8_t buf, int size)
206	{
207	PassthruState *card = opaque;
208	VSCMsgHeader *hdr;
209
210	if (card->vscard_in_pos + size > VSCARD_IN_SIZE) {
211	error_report(
212	"no room for data: pos %d + size %d > %d. dropping connection.",
213	card->vscard_in_pos, size, VSCARD_IN_SIZE);
214	ccid_card_vscard_drop_connection(card);
215	return;
216	}
217	assert(card->vscard_in_pos < VSCARD_IN_SIZE);
218	assert(card->vscard_in_hdr < VSCARD_IN_SIZE);
219	memcpy(card->vscard_in_data + card->vscard_in_pos, buf, size);
220	card->vscard_in_pos += size;
221	hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr);
222
223	while ((card->vscard_in_pos - card->vscard_in_hdr >= sizeof(VSCMsgHeader))
224	&&(card->vscard_in_pos - card->vscard_in_hdr >=
225	sizeof(VSCMsgHeader) + ntohl(hdr->length))) {
226	hdr->reader_id = ntohl(hdr->reader_id);
227	hdr->length = ntohl(hdr->length);
228	hdr->type = ntohl(hdr->type);
229	ccid_card_vscard_handle_message(card, hdr);
230	card->vscard_in_hdr += hdr->length + sizeof(VSCMsgHeader);
231	hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr);
232	}
233	if (card->vscard_in_hdr == card->vscard_in_pos) {
234	card->vscard_in_pos = card->vscard_in_hdr = 0;
235	}
236	}
237
238	static void ccid_card_vscard_event(void *opaque, int event)
239	{
240	PassthruState *card = opaque;
241
242	switch (event) {
243	case CHR_EVENT_BREAK:
244	card->vscard_in_pos = card->vscard_in_hdr = 0;
245	break;
246	case CHR_EVENT_FOCUS:
247	break;
248	case CHR_EVENT_OPENED:
249	DPRINTF(card, D_INFO, "%s: CHR_EVENT_OPENED\n", __func__);
250	break;
251	}
252	}
253
254	/* End VSCard handling */
255
256	static void passthru_apdu_from_guest(
257	CCIDCardState base, const uint8_t apdu, uint32_t len)
258	{
259	PassthruState *card = DO_UPCAST(PassthruState, base, base);
260
261	if (!card->cs) {
262	printf("ccid-passthru: no chardev, discarding apdu length %d\n", len);
263	return;
264	}
265	ccid_card_vscard_send_apdu(card, apdu, len);
266	}
267
268	static const uint8_t passthru_get_atr(CCIDCardState base, uint32_t *len)
269	{
270	PassthruState *card = DO_UPCAST(PassthruState, base, base);
271
272	*len = card->atr_length;
273	return card->atr;
274	}
275
276	static int passthru_initfn(CCIDCardState *base)
277	{
278	PassthruState *card = DO_UPCAST(PassthruState, base, base);
279
280	card->vscard_in_pos = 0;
281	card->vscard_in_hdr = 0;
282	if (card->cs) {
283	DPRINTF(card, D_INFO, "initing chardev\n");
284	qemu_chr_add_handlers(card->cs,
285	ccid_card_vscard_can_read,
286	ccid_card_vscard_read,
287	ccid_card_vscard_event, card);
288	ccid_card_vscard_send_init(card);
289	} else {
290	error_report("missing chardev");
291	return -1;
292	}
293	assert(sizeof(DEFAULT_ATR) <= MAX_ATR_SIZE);
294	memcpy(card->atr, DEFAULT_ATR, sizeof(DEFAULT_ATR));
295	card->atr_length = sizeof(DEFAULT_ATR);
296	return 0;
297	}
298
299	static int passthru_exitfn(CCIDCardState *base)
300	{
301	return 0;
302	}
303
304	static VMStateDescription passthru_vmstate = {
305	.name = PASSTHRU_DEV_NAME,
306	.version_id = 1,
307	.minimum_version_id = 1,
308	.fields = (VMStateField[]) {
309	VMSTATE_BUFFER(vscard_in_data, PassthruState),
310	VMSTATE_UINT32(vscard_in_pos, PassthruState),
311	VMSTATE_UINT32(vscard_in_hdr, PassthruState),
312	VMSTATE_BUFFER(atr, PassthruState),
313	VMSTATE_UINT8(atr_length, PassthruState),
314	VMSTATE_END_OF_LIST()
315	}
316	};
317
318	static CCIDCardInfo passthru_card_info = {
319	.qdev.name = PASSTHRU_DEV_NAME,
320	.qdev.desc = "passthrough smartcard",
321	.qdev.size = sizeof(PassthruState),
322	.qdev.vmsd = &passthru_vmstate,
323	.initfn = passthru_initfn,
324	.exitfn = passthru_exitfn,
325	.get_atr = passthru_get_atr,
326	.apdu_from_guest = passthru_apdu_from_guest,
327	.qdev.props = (Property[]) {
328	DEFINE_PROP_CHR("chardev", PassthruState, cs),
329	DEFINE_PROP_UINT8("debug", PassthruState, debug, 0),
330	DEFINE_PROP_END_OF_LIST(),
331	},
332	};
333
334	static void ccid_card_passthru_register_devices(void)
335	{
336	ccid_card_qdev_register(&passthru_card_info);
337	}
338
339	device_init(ccid_card_passthru_register_devices)