149ab747fSPaolo Bonzini /* 249ab747fSPaolo Bonzini * CCID Passthru Card Device emulation 349ab747fSPaolo Bonzini * 449ab747fSPaolo Bonzini * Copyright (c) 2011 Red Hat. 549ab747fSPaolo Bonzini * Written by Alon Levy. 649ab747fSPaolo Bonzini * 749ab747fSPaolo Bonzini * This work is licensed under the terms of the GNU GPL, version 2.1 or later. 849ab747fSPaolo Bonzini * See the COPYING file in the top-level directory. 949ab747fSPaolo Bonzini */ 1049ab747fSPaolo Bonzini 11e532b2e0SPeter Maydell #include "qemu/osdep.h" 12a8d25326SMarkus Armbruster #include "qemu-common.h" 13246e195bSPhilippe Mathieu-Daudé #include "qemu/units.h" 140f5c642dSMichal Privoznik #include <libcacard.h> 154d43a603SMarc-André Lureau #include "chardev/char-fe.h" 16a27bd6c7SMarkus Armbruster #include "hw/qdev-properties.h" 17d6454270SMarkus Armbruster #include "migration/vmstate.h" 18d49b6836SMarkus Armbruster #include "qemu/error-report.h" 190b8fa32fSMarkus Armbruster #include "qemu/module.h" 2049ab747fSPaolo Bonzini #include "qemu/sockets.h" 2147b43a1fSPaolo Bonzini #include "ccid.h" 22cc847bfdSMao Zhongyi #include "qapi/error.h" 2349ab747fSPaolo Bonzini 2449ab747fSPaolo Bonzini #define DPRINTF(card, lvl, fmt, ...) \ 2549ab747fSPaolo Bonzini do { \ 2649ab747fSPaolo Bonzini if (lvl <= card->debug) { \ 2749ab747fSPaolo Bonzini printf("ccid-card-passthru: " fmt , ## __VA_ARGS__); \ 2849ab747fSPaolo Bonzini } \ 2949ab747fSPaolo Bonzini } while (0) 3049ab747fSPaolo Bonzini 3149ab747fSPaolo Bonzini #define D_WARN 1 3249ab747fSPaolo Bonzini #define D_INFO 2 3349ab747fSPaolo Bonzini #define D_MORE_INFO 3 3449ab747fSPaolo Bonzini #define D_VERBOSE 4 3549ab747fSPaolo Bonzini 3649ab747fSPaolo Bonzini /* TODO: do we still need this? */ 37da000a48SJim Meyering static const uint8_t DEFAULT_ATR[] = { 3849ab747fSPaolo Bonzini /* 3949ab747fSPaolo Bonzini * From some example somewhere 4049ab747fSPaolo Bonzini * 0x3B, 0xB0, 0x18, 0x00, 0xD1, 0x81, 0x05, 0xB1, 0x40, 0x38, 0x1F, 0x03, 0x28 4149ab747fSPaolo Bonzini */ 4249ab747fSPaolo Bonzini 4349ab747fSPaolo Bonzini /* From an Athena smart card */ 4449ab747fSPaolo Bonzini 0x3B, 0xD5, 0x18, 0xFF, 0x80, 0x91, 0xFE, 0x1F, 0xC3, 0x80, 0x73, 0xC8, 0x21, 4549ab747fSPaolo Bonzini 0x13, 0x08 4649ab747fSPaolo Bonzini }; 4749ab747fSPaolo Bonzini 48246e195bSPhilippe Mathieu-Daudé #define VSCARD_IN_SIZE (64 * KiB) 4949ab747fSPaolo Bonzini 5049ab747fSPaolo Bonzini /* maximum size of ATR - from 7816-3 */ 5149ab747fSPaolo Bonzini #define MAX_ATR_SIZE 40 5249ab747fSPaolo Bonzini 5349ab747fSPaolo Bonzini typedef struct PassthruState PassthruState; 5449ab747fSPaolo Bonzini 5549ab747fSPaolo Bonzini struct PassthruState { 5649ab747fSPaolo Bonzini CCIDCardState base; 57becdfa00SMarc-André Lureau CharBackend cs; 5849ab747fSPaolo Bonzini uint8_t vscard_in_data[VSCARD_IN_SIZE]; 5949ab747fSPaolo Bonzini uint32_t vscard_in_pos; 6049ab747fSPaolo Bonzini uint32_t vscard_in_hdr; 6149ab747fSPaolo Bonzini uint8_t atr[MAX_ATR_SIZE]; 6249ab747fSPaolo Bonzini uint8_t atr_length; 6349ab747fSPaolo Bonzini uint8_t debug; 6449ab747fSPaolo Bonzini }; 6549ab747fSPaolo Bonzini 66059db204SCao jin #define TYPE_CCID_PASSTHRU "ccid-card-passthru" 67059db204SCao jin #define PASSTHRU_CCID_CARD(obj) \ 68059db204SCao jin OBJECT_CHECK(PassthruState, (obj), TYPE_CCID_PASSTHRU) 69059db204SCao jin 7049ab747fSPaolo Bonzini /* 7149ab747fSPaolo Bonzini * VSCard protocol over chardev 7249ab747fSPaolo Bonzini * This code should not depend on the card type. 7349ab747fSPaolo Bonzini */ 7449ab747fSPaolo Bonzini 7549ab747fSPaolo Bonzini static void ccid_card_vscard_send_msg(PassthruState *s, 7649ab747fSPaolo Bonzini VSCMsgType type, uint32_t reader_id, 7749ab747fSPaolo Bonzini const uint8_t *payload, uint32_t length) 7849ab747fSPaolo Bonzini { 7949ab747fSPaolo Bonzini VSCMsgHeader scr_msg_header; 8049ab747fSPaolo Bonzini 8149ab747fSPaolo Bonzini scr_msg_header.type = htonl(type); 8249ab747fSPaolo Bonzini scr_msg_header.reader_id = htonl(reader_id); 8349ab747fSPaolo Bonzini scr_msg_header.length = htonl(length); 846ab3fc32SDaniel P. Berrange /* XXX this blocks entire thread. Rewrite to use 856ab3fc32SDaniel P. Berrange * qemu_chr_fe_write and background I/O callbacks */ 865345fdb4SMarc-André Lureau qemu_chr_fe_write_all(&s->cs, (uint8_t *)&scr_msg_header, 876ab3fc32SDaniel P. Berrange sizeof(VSCMsgHeader)); 885345fdb4SMarc-André Lureau qemu_chr_fe_write_all(&s->cs, payload, length); 8949ab747fSPaolo Bonzini } 9049ab747fSPaolo Bonzini 9149ab747fSPaolo Bonzini static void ccid_card_vscard_send_apdu(PassthruState *s, 9249ab747fSPaolo Bonzini const uint8_t *apdu, uint32_t length) 9349ab747fSPaolo Bonzini { 9449ab747fSPaolo Bonzini ccid_card_vscard_send_msg( 9549ab747fSPaolo Bonzini s, VSC_APDU, VSCARD_MINIMAL_READER_ID, apdu, length); 9649ab747fSPaolo Bonzini } 9749ab747fSPaolo Bonzini 9849ab747fSPaolo Bonzini static void ccid_card_vscard_send_error(PassthruState *s, 9949ab747fSPaolo Bonzini uint32_t reader_id, VSCErrorCode code) 10049ab747fSPaolo Bonzini { 10149ab747fSPaolo Bonzini VSCMsgError msg = {.code = htonl(code)}; 10249ab747fSPaolo Bonzini 10349ab747fSPaolo Bonzini ccid_card_vscard_send_msg( 10449ab747fSPaolo Bonzini s, VSC_Error, reader_id, (uint8_t *)&msg, sizeof(msg)); 10549ab747fSPaolo Bonzini } 10649ab747fSPaolo Bonzini 10749ab747fSPaolo Bonzini static void ccid_card_vscard_send_init(PassthruState *s) 10849ab747fSPaolo Bonzini { 10949ab747fSPaolo Bonzini VSCMsgInit msg = { 11049ab747fSPaolo Bonzini .version = htonl(VSCARD_VERSION), 11149ab747fSPaolo Bonzini .magic = VSCARD_MAGIC, 11249ab747fSPaolo Bonzini .capabilities = {0} 11349ab747fSPaolo Bonzini }; 11449ab747fSPaolo Bonzini 11549ab747fSPaolo Bonzini ccid_card_vscard_send_msg(s, VSC_Init, VSCARD_UNDEFINED_READER_ID, 11649ab747fSPaolo Bonzini (uint8_t *)&msg, sizeof(msg)); 11749ab747fSPaolo Bonzini } 11849ab747fSPaolo Bonzini 11949ab747fSPaolo Bonzini static int ccid_card_vscard_can_read(void *opaque) 12049ab747fSPaolo Bonzini { 12149ab747fSPaolo Bonzini PassthruState *card = opaque; 12249ab747fSPaolo Bonzini 12349ab747fSPaolo Bonzini return VSCARD_IN_SIZE >= card->vscard_in_pos ? 12449ab747fSPaolo Bonzini VSCARD_IN_SIZE - card->vscard_in_pos : 0; 12549ab747fSPaolo Bonzini } 12649ab747fSPaolo Bonzini 12749ab747fSPaolo Bonzini static void ccid_card_vscard_handle_init( 12849ab747fSPaolo Bonzini PassthruState *card, VSCMsgHeader *hdr, VSCMsgInit *init) 12949ab747fSPaolo Bonzini { 13049ab747fSPaolo Bonzini uint32_t *capabilities; 13149ab747fSPaolo Bonzini int num_capabilities; 13249ab747fSPaolo Bonzini int i; 13349ab747fSPaolo Bonzini 13449ab747fSPaolo Bonzini capabilities = init->capabilities; 13549ab747fSPaolo Bonzini num_capabilities = 13649ab747fSPaolo Bonzini 1 + ((hdr->length - sizeof(VSCMsgInit)) / sizeof(uint32_t)); 13749ab747fSPaolo Bonzini init->version = ntohl(init->version); 13849ab747fSPaolo Bonzini for (i = 0 ; i < num_capabilities; ++i) { 13949ab747fSPaolo Bonzini capabilities[i] = ntohl(capabilities[i]); 14049ab747fSPaolo Bonzini } 14149ab747fSPaolo Bonzini if (init->magic != VSCARD_MAGIC) { 14249ab747fSPaolo Bonzini error_report("wrong magic"); 14349ab747fSPaolo Bonzini /* we can't disconnect the chardev */ 14449ab747fSPaolo Bonzini } 14549ab747fSPaolo Bonzini if (init->version != VSCARD_VERSION) { 14649ab747fSPaolo Bonzini DPRINTF(card, D_WARN, 14749ab747fSPaolo Bonzini "got version %d, have %d", init->version, VSCARD_VERSION); 14849ab747fSPaolo Bonzini } 14949ab747fSPaolo Bonzini /* future handling of capabilities, none exist atm */ 15049ab747fSPaolo Bonzini ccid_card_vscard_send_init(card); 15149ab747fSPaolo Bonzini } 15249ab747fSPaolo Bonzini 1530e61400cSAlon Levy static int check_atr(PassthruState *card, uint8_t *data, int len) 1540e61400cSAlon Levy { 1550e61400cSAlon Levy int historical_length, opt_bytes; 1560e61400cSAlon Levy int td_count = 0; 1570e61400cSAlon Levy int td; 1580e61400cSAlon Levy 1590e61400cSAlon Levy if (len < 2) { 1600e61400cSAlon Levy return 0; 1610e61400cSAlon Levy } 1620e61400cSAlon Levy historical_length = data[1] & 0xf; 1630e61400cSAlon Levy opt_bytes = 0; 1640e61400cSAlon Levy if (data[0] != 0x3b && data[0] != 0x3f) { 1650e61400cSAlon Levy DPRINTF(card, D_WARN, "atr's T0 is 0x%X, not in {0x3b, 0x3f}\n", 1660e61400cSAlon Levy data[0]); 1670e61400cSAlon Levy return 0; 1680e61400cSAlon Levy } 1690e61400cSAlon Levy td_count = 0; 1700e61400cSAlon Levy td = data[1] >> 4; 1710e61400cSAlon Levy while (td && td_count < 2 && opt_bytes + historical_length + 2 < len) { 1720e61400cSAlon Levy td_count++; 1730e61400cSAlon Levy if (td & 0x1) { 1740e61400cSAlon Levy opt_bytes++; 1750e61400cSAlon Levy } 1760e61400cSAlon Levy if (td & 0x2) { 1770e61400cSAlon Levy opt_bytes++; 1780e61400cSAlon Levy } 1790e61400cSAlon Levy if (td & 0x4) { 1800e61400cSAlon Levy opt_bytes++; 1810e61400cSAlon Levy } 1820e61400cSAlon Levy if (td & 0x8) { 1830e61400cSAlon Levy opt_bytes++; 1840e61400cSAlon Levy td = data[opt_bytes + 2] >> 4; 1850e61400cSAlon Levy } 1860e61400cSAlon Levy } 1870e61400cSAlon Levy if (len < 2 + historical_length + opt_bytes) { 1880e61400cSAlon Levy DPRINTF(card, D_WARN, 1890e61400cSAlon Levy "atr too short: len %d, but historical_len %d, T1 0x%X\n", 1900e61400cSAlon Levy len, historical_length, data[1]); 1910e61400cSAlon Levy return 0; 1920e61400cSAlon Levy } 1930e61400cSAlon Levy if (len > 2 + historical_length + opt_bytes) { 1940e61400cSAlon Levy DPRINTF(card, D_WARN, 1950e61400cSAlon Levy "atr too long: len %d, but hist/opt %d/%d, T1 0x%X\n", 1960e61400cSAlon Levy len, historical_length, opt_bytes, data[1]); 1970e61400cSAlon Levy /* let it through */ 1980e61400cSAlon Levy } 1990e61400cSAlon Levy DPRINTF(card, D_VERBOSE, 2000e61400cSAlon Levy "atr passes check: %d total length, %d historical, %d optional\n", 2010e61400cSAlon Levy len, historical_length, opt_bytes); 2020e61400cSAlon Levy 2030e61400cSAlon Levy return 1; 2040e61400cSAlon Levy } 2050e61400cSAlon Levy 20649ab747fSPaolo Bonzini static void ccid_card_vscard_handle_message(PassthruState *card, 20749ab747fSPaolo Bonzini VSCMsgHeader *scr_msg_header) 20849ab747fSPaolo Bonzini { 20949ab747fSPaolo Bonzini uint8_t *data = (uint8_t *)&scr_msg_header[1]; 21049ab747fSPaolo Bonzini 21149ab747fSPaolo Bonzini switch (scr_msg_header->type) { 21249ab747fSPaolo Bonzini case VSC_ATR: 21349ab747fSPaolo Bonzini DPRINTF(card, D_INFO, "VSC_ATR %d\n", scr_msg_header->length); 21449ab747fSPaolo Bonzini if (scr_msg_header->length > MAX_ATR_SIZE) { 21549ab747fSPaolo Bonzini error_report("ATR size exceeds spec, ignoring"); 21649ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, scr_msg_header->reader_id, 21749ab747fSPaolo Bonzini VSC_GENERAL_ERROR); 21849ab747fSPaolo Bonzini break; 21949ab747fSPaolo Bonzini } 2200e61400cSAlon Levy if (!check_atr(card, data, scr_msg_header->length)) { 2210e61400cSAlon Levy error_report("ATR is inconsistent, ignoring"); 2220e61400cSAlon Levy ccid_card_vscard_send_error(card, scr_msg_header->reader_id, 2230e61400cSAlon Levy VSC_GENERAL_ERROR); 2240e61400cSAlon Levy break; 2250e61400cSAlon Levy } 22649ab747fSPaolo Bonzini memcpy(card->atr, data, scr_msg_header->length); 22749ab747fSPaolo Bonzini card->atr_length = scr_msg_header->length; 22849ab747fSPaolo Bonzini ccid_card_card_inserted(&card->base); 22949ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, scr_msg_header->reader_id, 23049ab747fSPaolo Bonzini VSC_SUCCESS); 23149ab747fSPaolo Bonzini break; 23249ab747fSPaolo Bonzini case VSC_APDU: 23349ab747fSPaolo Bonzini ccid_card_send_apdu_to_guest( 23449ab747fSPaolo Bonzini &card->base, data, scr_msg_header->length); 23549ab747fSPaolo Bonzini break; 23649ab747fSPaolo Bonzini case VSC_CardRemove: 23749ab747fSPaolo Bonzini DPRINTF(card, D_INFO, "VSC_CardRemove\n"); 23849ab747fSPaolo Bonzini ccid_card_card_removed(&card->base); 23949ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, 24049ab747fSPaolo Bonzini scr_msg_header->reader_id, VSC_SUCCESS); 24149ab747fSPaolo Bonzini break; 24249ab747fSPaolo Bonzini case VSC_Init: 24349ab747fSPaolo Bonzini ccid_card_vscard_handle_init( 24449ab747fSPaolo Bonzini card, scr_msg_header, (VSCMsgInit *)data); 24549ab747fSPaolo Bonzini break; 24649ab747fSPaolo Bonzini case VSC_Error: 24749ab747fSPaolo Bonzini ccid_card_card_error(&card->base, *(uint32_t *)data); 24849ab747fSPaolo Bonzini break; 24949ab747fSPaolo Bonzini case VSC_ReaderAdd: 25049ab747fSPaolo Bonzini if (ccid_card_ccid_attach(&card->base) < 0) { 25149ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, VSCARD_UNDEFINED_READER_ID, 25249ab747fSPaolo Bonzini VSC_CANNOT_ADD_MORE_READERS); 25349ab747fSPaolo Bonzini } else { 25449ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, VSCARD_MINIMAL_READER_ID, 25549ab747fSPaolo Bonzini VSC_SUCCESS); 25649ab747fSPaolo Bonzini } 25749ab747fSPaolo Bonzini break; 25849ab747fSPaolo Bonzini case VSC_ReaderRemove: 25949ab747fSPaolo Bonzini ccid_card_ccid_detach(&card->base); 26049ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, 26149ab747fSPaolo Bonzini scr_msg_header->reader_id, VSC_SUCCESS); 26249ab747fSPaolo Bonzini break; 26349ab747fSPaolo Bonzini default: 26449ab747fSPaolo Bonzini printf("usb-ccid: chardev: unexpected message of type %X\n", 26549ab747fSPaolo Bonzini scr_msg_header->type); 26649ab747fSPaolo Bonzini ccid_card_vscard_send_error(card, scr_msg_header->reader_id, 26749ab747fSPaolo Bonzini VSC_GENERAL_ERROR); 26849ab747fSPaolo Bonzini } 26949ab747fSPaolo Bonzini } 27049ab747fSPaolo Bonzini 27149ab747fSPaolo Bonzini static void ccid_card_vscard_drop_connection(PassthruState *card) 27249ab747fSPaolo Bonzini { 2731ce2610cSMarc-André Lureau qemu_chr_fe_deinit(&card->cs, true); 27449ab747fSPaolo Bonzini card->vscard_in_pos = card->vscard_in_hdr = 0; 27549ab747fSPaolo Bonzini } 27649ab747fSPaolo Bonzini 27749ab747fSPaolo Bonzini static void ccid_card_vscard_read(void *opaque, const uint8_t *buf, int size) 27849ab747fSPaolo Bonzini { 27949ab747fSPaolo Bonzini PassthruState *card = opaque; 28049ab747fSPaolo Bonzini VSCMsgHeader *hdr; 28149ab747fSPaolo Bonzini 28249ab747fSPaolo Bonzini if (card->vscard_in_pos + size > VSCARD_IN_SIZE) { 283246e195bSPhilippe Mathieu-Daudé error_report("no room for data: pos %u + size %d > %" PRId64 "." 284246e195bSPhilippe Mathieu-Daudé " dropping connection.", 28549ab747fSPaolo Bonzini card->vscard_in_pos, size, VSCARD_IN_SIZE); 28649ab747fSPaolo Bonzini ccid_card_vscard_drop_connection(card); 28749ab747fSPaolo Bonzini return; 28849ab747fSPaolo Bonzini } 28949ab747fSPaolo Bonzini assert(card->vscard_in_pos < VSCARD_IN_SIZE); 29049ab747fSPaolo Bonzini assert(card->vscard_in_hdr < VSCARD_IN_SIZE); 29149ab747fSPaolo Bonzini memcpy(card->vscard_in_data + card->vscard_in_pos, buf, size); 29249ab747fSPaolo Bonzini card->vscard_in_pos += size; 29349ab747fSPaolo Bonzini hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr); 29449ab747fSPaolo Bonzini 29549ab747fSPaolo Bonzini while ((card->vscard_in_pos - card->vscard_in_hdr >= sizeof(VSCMsgHeader)) 29649ab747fSPaolo Bonzini &&(card->vscard_in_pos - card->vscard_in_hdr >= 29749ab747fSPaolo Bonzini sizeof(VSCMsgHeader) + ntohl(hdr->length))) { 29849ab747fSPaolo Bonzini hdr->reader_id = ntohl(hdr->reader_id); 29949ab747fSPaolo Bonzini hdr->length = ntohl(hdr->length); 30049ab747fSPaolo Bonzini hdr->type = ntohl(hdr->type); 30149ab747fSPaolo Bonzini ccid_card_vscard_handle_message(card, hdr); 30249ab747fSPaolo Bonzini card->vscard_in_hdr += hdr->length + sizeof(VSCMsgHeader); 30349ab747fSPaolo Bonzini hdr = (VSCMsgHeader *)(card->vscard_in_data + card->vscard_in_hdr); 30449ab747fSPaolo Bonzini } 30549ab747fSPaolo Bonzini if (card->vscard_in_hdr == card->vscard_in_pos) { 30649ab747fSPaolo Bonzini card->vscard_in_pos = card->vscard_in_hdr = 0; 30749ab747fSPaolo Bonzini } 30849ab747fSPaolo Bonzini } 30949ab747fSPaolo Bonzini 310083b266fSPhilippe Mathieu-Daudé static void ccid_card_vscard_event(void *opaque, QEMUChrEvent event) 31149ab747fSPaolo Bonzini { 31249ab747fSPaolo Bonzini PassthruState *card = opaque; 31349ab747fSPaolo Bonzini 31449ab747fSPaolo Bonzini switch (event) { 31549ab747fSPaolo Bonzini case CHR_EVENT_BREAK: 31649ab747fSPaolo Bonzini card->vscard_in_pos = card->vscard_in_hdr = 0; 31749ab747fSPaolo Bonzini break; 31849ab747fSPaolo Bonzini case CHR_EVENT_OPENED: 31949ab747fSPaolo Bonzini DPRINTF(card, D_INFO, "%s: CHR_EVENT_OPENED\n", __func__); 32049ab747fSPaolo Bonzini break; 321dfe8114aSPhilippe Mathieu-Daudé case CHR_EVENT_MUX_IN: 322dfe8114aSPhilippe Mathieu-Daudé case CHR_EVENT_MUX_OUT: 323dfe8114aSPhilippe Mathieu-Daudé case CHR_EVENT_CLOSED: 324dfe8114aSPhilippe Mathieu-Daudé /* Ignore */ 325dfe8114aSPhilippe Mathieu-Daudé break; 32649ab747fSPaolo Bonzini } 32749ab747fSPaolo Bonzini } 32849ab747fSPaolo Bonzini 32949ab747fSPaolo Bonzini /* End VSCard handling */ 33049ab747fSPaolo Bonzini 33149ab747fSPaolo Bonzini static void passthru_apdu_from_guest( 33249ab747fSPaolo Bonzini CCIDCardState *base, const uint8_t *apdu, uint32_t len) 33349ab747fSPaolo Bonzini { 334059db204SCao jin PassthruState *card = PASSTHRU_CCID_CARD(base); 33549ab747fSPaolo Bonzini 33630650701SAnton Nefedov if (!qemu_chr_fe_backend_connected(&card->cs)) { 33749ab747fSPaolo Bonzini printf("ccid-passthru: no chardev, discarding apdu length %d\n", len); 33849ab747fSPaolo Bonzini return; 33949ab747fSPaolo Bonzini } 34049ab747fSPaolo Bonzini ccid_card_vscard_send_apdu(card, apdu, len); 34149ab747fSPaolo Bonzini } 34249ab747fSPaolo Bonzini 34349ab747fSPaolo Bonzini static const uint8_t *passthru_get_atr(CCIDCardState *base, uint32_t *len) 34449ab747fSPaolo Bonzini { 345059db204SCao jin PassthruState *card = PASSTHRU_CCID_CARD(base); 34649ab747fSPaolo Bonzini 34749ab747fSPaolo Bonzini *len = card->atr_length; 34849ab747fSPaolo Bonzini return card->atr; 34949ab747fSPaolo Bonzini } 35049ab747fSPaolo Bonzini 351cc847bfdSMao Zhongyi static void passthru_realize(CCIDCardState *base, Error **errp) 35249ab747fSPaolo Bonzini { 353059db204SCao jin PassthruState *card = PASSTHRU_CCID_CARD(base); 35449ab747fSPaolo Bonzini 35549ab747fSPaolo Bonzini card->vscard_in_pos = 0; 35649ab747fSPaolo Bonzini card->vscard_in_hdr = 0; 35730650701SAnton Nefedov if (qemu_chr_fe_backend_connected(&card->cs)) { 358e58d64a1SMarc-André Lureau DPRINTF(card, D_INFO, "ccid-card-passthru: initing chardev"); 3595345fdb4SMarc-André Lureau qemu_chr_fe_set_handlers(&card->cs, 36049ab747fSPaolo Bonzini ccid_card_vscard_can_read, 36149ab747fSPaolo Bonzini ccid_card_vscard_read, 36281517ba3SAnton Nefedov ccid_card_vscard_event, NULL, card, NULL, true); 36349ab747fSPaolo Bonzini ccid_card_vscard_send_init(card); 36449ab747fSPaolo Bonzini } else { 365cc847bfdSMao Zhongyi error_setg(errp, "missing chardev"); 366cc847bfdSMao Zhongyi return; 36749ab747fSPaolo Bonzini } 368b16352acSAlon Levy card->debug = parse_debug_env("QEMU_CCID_PASSTHRU_DEBUG", D_VERBOSE, 369b16352acSAlon Levy card->debug); 37049ab747fSPaolo Bonzini assert(sizeof(DEFAULT_ATR) <= MAX_ATR_SIZE); 37149ab747fSPaolo Bonzini memcpy(card->atr, DEFAULT_ATR, sizeof(DEFAULT_ATR)); 37249ab747fSPaolo Bonzini card->atr_length = sizeof(DEFAULT_ATR); 37349ab747fSPaolo Bonzini } 37449ab747fSPaolo Bonzini 37549ab747fSPaolo Bonzini static VMStateDescription passthru_vmstate = { 3766783ecf1SPeter Maydell .name = "ccid-card-passthru", 37749ab747fSPaolo Bonzini .version_id = 1, 37849ab747fSPaolo Bonzini .minimum_version_id = 1, 37949ab747fSPaolo Bonzini .fields = (VMStateField[]) { 38049ab747fSPaolo Bonzini VMSTATE_BUFFER(vscard_in_data, PassthruState), 38149ab747fSPaolo Bonzini VMSTATE_UINT32(vscard_in_pos, PassthruState), 38249ab747fSPaolo Bonzini VMSTATE_UINT32(vscard_in_hdr, PassthruState), 38349ab747fSPaolo Bonzini VMSTATE_BUFFER(atr, PassthruState), 38449ab747fSPaolo Bonzini VMSTATE_UINT8(atr_length, PassthruState), 38549ab747fSPaolo Bonzini VMSTATE_END_OF_LIST() 38649ab747fSPaolo Bonzini } 38749ab747fSPaolo Bonzini }; 38849ab747fSPaolo Bonzini 38949ab747fSPaolo Bonzini static Property passthru_card_properties[] = { 39049ab747fSPaolo Bonzini DEFINE_PROP_CHR("chardev", PassthruState, cs), 39149ab747fSPaolo Bonzini DEFINE_PROP_UINT8("debug", PassthruState, debug, 0), 39249ab747fSPaolo Bonzini DEFINE_PROP_END_OF_LIST(), 39349ab747fSPaolo Bonzini }; 39449ab747fSPaolo Bonzini 39549ab747fSPaolo Bonzini static void passthru_class_initfn(ObjectClass *klass, void *data) 39649ab747fSPaolo Bonzini { 39749ab747fSPaolo Bonzini DeviceClass *dc = DEVICE_CLASS(klass); 39849ab747fSPaolo Bonzini CCIDCardClass *cc = CCID_CARD_CLASS(klass); 39949ab747fSPaolo Bonzini 400cc847bfdSMao Zhongyi cc->realize = passthru_realize; 40149ab747fSPaolo Bonzini cc->get_atr = passthru_get_atr; 40249ab747fSPaolo Bonzini cc->apdu_from_guest = passthru_apdu_from_guest; 403125ee0edSMarcel Apfelbaum set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 40449ab747fSPaolo Bonzini dc->desc = "passthrough smartcard"; 40549ab747fSPaolo Bonzini dc->vmsd = &passthru_vmstate; 406*4f67d30bSMarc-André Lureau device_class_set_props(dc, passthru_card_properties); 40749ab747fSPaolo Bonzini } 40849ab747fSPaolo Bonzini 40949ab747fSPaolo Bonzini static const TypeInfo passthru_card_info = { 410059db204SCao jin .name = TYPE_CCID_PASSTHRU, 41149ab747fSPaolo Bonzini .parent = TYPE_CCID_CARD, 41249ab747fSPaolo Bonzini .instance_size = sizeof(PassthruState), 41349ab747fSPaolo Bonzini .class_init = passthru_class_initfn, 41449ab747fSPaolo Bonzini }; 41549ab747fSPaolo Bonzini 41649ab747fSPaolo Bonzini static void ccid_card_passthru_register_types(void) 41749ab747fSPaolo Bonzini { 41849ab747fSPaolo Bonzini type_register_static(&passthru_card_info); 41949ab747fSPaolo Bonzini } 42049ab747fSPaolo Bonzini 42149ab747fSPaolo Bonzini type_init(ccid_card_passthru_register_types) 422