| 1 | /* |
| 2 | * U2F USB Passthru device. |
| 3 | * |
| 4 | * Copyright (c) 2020 César Belley <cesar.belley@lse.epita.fr> |
| 5 | * Written by César Belley <cesar.belley@lse.epita.fr> |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | * THE SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | #include "qemu/osdep.h" |
| 27 | #include "qemu/module.h" |
| 28 | #include "qemu/main-loop.h" |
| 29 | #include "qemu/error-report.h" |
| 30 | #include "qapi/error.h" |
| 31 | #include "hw/core/qdev-properties.h" |
| 32 | #include "hw/usb/usb.h" |
| 33 | #include "migration/vmstate.h" |
| 34 | |
| 35 | #include "u2f.h" |
| 36 | |
| 37 | #ifdef CONFIG_LIBUDEV |
| 38 | #include <libudev.h> |
| 39 | #endif |
| 40 | #include <linux/hidraw.h> |
| 41 | #include <sys/ioctl.h> |
| 42 | |
| 43 | #define NONCE_SIZE 8 |
| 44 | #define BROADCAST_CID 0xFFFFFFFF |
| 45 | #define TRANSACTION_TIMEOUT 120000 |
| 46 | |
| 47 | struct transaction { |
| 48 | uint32_t cid; |
| 49 | uint16_t resp_bcnt; |
| 50 | uint16_t resp_size; |
| 51 | |
| 52 | /* Nonce for broadcast isolation */ |
| 53 | uint8_t nonce[NONCE_SIZE]; |
| 54 | }; |
| 55 | |
| 56 | typedef struct U2FPassthruState U2FPassthruState; |
| 57 | |
| 58 | #define CURRENT_TRANSACTIONS_NUM 4 |
| 59 | |
| 60 | struct U2FPassthruState { |
| 61 | U2FKeyState base; |
| 62 | |
| 63 | /* Host device */ |
| 64 | char *hidraw; |
| 65 | int hidraw_fd; |
| 66 | |
| 67 | /* Current Transactions */ |
| 68 | struct transaction current_transactions[CURRENT_TRANSACTIONS_NUM]; |
| 69 | uint8_t current_transactions_start; |
| 70 | uint8_t current_transactions_end; |
| 71 | uint8_t current_transactions_num; |
| 72 | |
| 73 | /* Transaction time checking */ |
| 74 | int64_t last_transaction_time; |
| 75 | QEMUTimer timer; |
| 76 | }; |
| 77 | |
| 78 | #define TYPE_U2F_PASSTHRU "u2f-passthru" |
| 79 | #define PASSTHRU_U2F_KEY(obj) \ |
| 80 | OBJECT_CHECK(U2FPassthruState, (obj), TYPE_U2F_PASSTHRU) |
| 81 | |
| 82 | /* Init packet sizes */ |
| 83 | #define PACKET_INIT_HEADER_SIZE 7 |
| 84 | #define PACKET_INIT_DATA_SIZE (U2FHID_PACKET_SIZE - PACKET_INIT_HEADER_SIZE) |
| 85 | |
| 86 | /* Cont packet sizes */ |
| 87 | #define PACKET_CONT_HEADER_SIZE 5 |
| 88 | #define PACKET_CONT_DATA_SIZE (U2FHID_PACKET_SIZE - PACKET_CONT_HEADER_SIZE) |
| 89 | |
| 90 | struct packet_init { |
| 91 | uint32_t cid; |
| 92 | uint8_t cmd; |
| 93 | uint8_t bcnth; |
| 94 | uint8_t bcntl; |
| 95 | uint8_t data[PACKET_INIT_DATA_SIZE]; |
| 96 | } QEMU_PACKED; |
| 97 | |
| 98 | static inline uint32_t packet_get_cid(const void *packet) |
| 99 | { |
| 100 | return *((uint32_t *)packet); |
| 101 | } |
| 102 | |
| 103 | static inline bool packet_is_init(const void *packet) |
| 104 | { |
| 105 | return ((uint8_t *)packet)[4] & (1 << 7); |
| 106 | } |
| 107 | |
| 108 | static inline uint16_t packet_init_get_bcnt( |
| 109 | const struct packet_init *packet_init) |
| 110 | { |
| 111 | uint16_t bcnt = 0; |
| 112 | bcnt |= packet_init->bcnth << 8; |
| 113 | bcnt |= packet_init->bcntl; |
| 114 | |
| 115 | return bcnt; |
| 116 | } |
| 117 | |
| 118 | static void u2f_passthru_reset(U2FPassthruState *key) |
| 119 | { |
| 120 | timer_del(&key->timer); |
| 121 | qemu_set_fd_handler(key->hidraw_fd, NULL, NULL, key); |
| 122 | key->last_transaction_time = 0; |
| 123 | key->current_transactions_start = 0; |
| 124 | key->current_transactions_end = 0; |
| 125 | key->current_transactions_num = 0; |
| 126 | } |
| 127 | |
| 128 | static void u2f_timeout_check(void *opaque) |
| 129 | { |
| 130 | U2FPassthruState *key = opaque; |
| 131 | int64_t time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL); |
| 132 | |
| 133 | if (time > key->last_transaction_time + TRANSACTION_TIMEOUT) { |
| 134 | u2f_passthru_reset(key); |
| 135 | } else { |
| 136 | timer_mod(&key->timer, time + TRANSACTION_TIMEOUT / 4); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | static int u2f_transaction_get_index(U2FPassthruState *key, uint32_t cid) |
| 141 | { |
| 142 | for (int i = 0; i < key->current_transactions_num; ++i) { |
| 143 | int index = (key->current_transactions_start + i) |
| 144 | % CURRENT_TRANSACTIONS_NUM; |
| 145 | if (cid == key->current_transactions[index].cid) { |
| 146 | return index; |
| 147 | } |
| 148 | } |
| 149 | return -1; |
| 150 | } |
| 151 | |
| 152 | static struct transaction *u2f_transaction_get(U2FPassthruState *key, |
| 153 | uint32_t cid) |
| 154 | { |
| 155 | int index = u2f_transaction_get_index(key, cid); |
| 156 | if (index < 0) { |
| 157 | return NULL; |
| 158 | } |
| 159 | return &key->current_transactions[index]; |
| 160 | } |
| 161 | |
| 162 | static struct transaction *u2f_transaction_get_from_nonce(U2FPassthruState *key, |
| 163 | const uint8_t nonce[NONCE_SIZE]) |
| 164 | { |
| 165 | for (int i = 0; i < key->current_transactions_num; ++i) { |
| 166 | int index = (key->current_transactions_start + i) |
| 167 | % CURRENT_TRANSACTIONS_NUM; |
| 168 | if (key->current_transactions[index].cid == BROADCAST_CID |
| 169 | && memcmp(nonce, key->current_transactions[index].nonce, |
| 170 | NONCE_SIZE) == 0) { |
| 171 | return &key->current_transactions[index]; |
| 172 | } |
| 173 | } |
| 174 | return NULL; |
| 175 | } |
| 176 | |
| 177 | static void u2f_transaction_close(U2FPassthruState *key, uint32_t cid) |
| 178 | { |
| 179 | int index, next_index; |
| 180 | index = u2f_transaction_get_index(key, cid); |
| 181 | if (index < 0) { |
| 182 | return; |
| 183 | } |
| 184 | next_index = (index + 1) % CURRENT_TRANSACTIONS_NUM; |
| 185 | |
| 186 | /* Rearrange to ensure the oldest is at the start position */ |
| 187 | while (next_index != key->current_transactions_end) { |
| 188 | memcpy(&key->current_transactions[index], |
| 189 | &key->current_transactions[next_index], |
| 190 | sizeof(struct transaction)); |
| 191 | |
| 192 | index = next_index; |
| 193 | next_index = (index + 1) % CURRENT_TRANSACTIONS_NUM; |
| 194 | } |
| 195 | |
| 196 | key->current_transactions_end = index; |
| 197 | --key->current_transactions_num; |
| 198 | |
| 199 | if (key->current_transactions_num == 0) { |
| 200 | u2f_passthru_reset(key); |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | static void u2f_transaction_add(U2FPassthruState *key, uint32_t cid, |
| 205 | const uint8_t nonce[NONCE_SIZE]) |
| 206 | { |
| 207 | uint8_t index; |
| 208 | struct transaction *transaction; |
| 209 | |
| 210 | if (key->current_transactions_num >= CURRENT_TRANSACTIONS_NUM) { |
| 211 | /* Close the oldest transaction */ |
| 212 | index = key->current_transactions_start; |
| 213 | transaction = &key->current_transactions[index]; |
| 214 | u2f_transaction_close(key, transaction->cid); |
| 215 | } |
| 216 | |
| 217 | /* Index */ |
| 218 | index = key->current_transactions_end; |
| 219 | key->current_transactions_end = (index + 1) % CURRENT_TRANSACTIONS_NUM; |
| 220 | ++key->current_transactions_num; |
| 221 | |
| 222 | /* Transaction */ |
| 223 | transaction = &key->current_transactions[index]; |
| 224 | transaction->cid = cid; |
| 225 | transaction->resp_bcnt = 0; |
| 226 | transaction->resp_size = 0; |
| 227 | |
| 228 | /* Nonce */ |
| 229 | if (nonce != NULL) { |
| 230 | memcpy(transaction->nonce, nonce, NONCE_SIZE); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | static void u2f_passthru_read(void *opaque); |
| 235 | |
| 236 | static void u2f_transaction_start(U2FPassthruState *key, |
| 237 | const struct packet_init *packet_init) |
| 238 | { |
| 239 | int64_t time; |
| 240 | |
| 241 | /* Transaction */ |
| 242 | if (packet_init->cid == BROADCAST_CID) { |
| 243 | u2f_transaction_add(key, packet_init->cid, packet_init->data); |
| 244 | } else { |
| 245 | u2f_transaction_add(key, packet_init->cid, NULL); |
| 246 | } |
| 247 | |
| 248 | /* Time */ |
| 249 | time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL); |
| 250 | if (key->last_transaction_time == 0) { |
| 251 | qemu_set_fd_handler(key->hidraw_fd, u2f_passthru_read, NULL, key); |
| 252 | timer_init_ms(&key->timer, QEMU_CLOCK_VIRTUAL, u2f_timeout_check, key); |
| 253 | timer_mod(&key->timer, time + TRANSACTION_TIMEOUT / 4); |
| 254 | } |
| 255 | key->last_transaction_time = time; |
| 256 | } |
| 257 | |
| 258 | static void u2f_passthru_recv_from_host(U2FPassthruState *key, |
| 259 | const uint8_t packet[U2FHID_PACKET_SIZE]) |
| 260 | { |
| 261 | struct transaction *transaction; |
| 262 | uint32_t cid; |
| 263 | |
| 264 | /* Retrieve transaction */ |
| 265 | cid = packet_get_cid(packet); |
| 266 | if (cid == BROADCAST_CID) { |
| 267 | struct packet_init *packet_init; |
| 268 | if (!packet_is_init(packet)) { |
| 269 | return; |
| 270 | } |
| 271 | packet_init = (struct packet_init *)packet; |
| 272 | transaction = u2f_transaction_get_from_nonce(key, packet_init->data); |
| 273 | } else { |
| 274 | transaction = u2f_transaction_get(key, cid); |
| 275 | } |
| 276 | |
| 277 | /* Ignore no started transaction */ |
| 278 | if (transaction == NULL) { |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | if (packet_is_init(packet)) { |
| 283 | struct packet_init *packet_init = (struct packet_init *)packet; |
| 284 | transaction->resp_bcnt = packet_init_get_bcnt(packet_init); |
| 285 | transaction->resp_size = PACKET_INIT_DATA_SIZE; |
| 286 | |
| 287 | if (packet_init->cid == BROADCAST_CID) { |
| 288 | /* Nonce checking for legitimate response */ |
| 289 | if (memcmp(transaction->nonce, packet_init->data, NONCE_SIZE) |
| 290 | != 0) { |
| 291 | return; |
| 292 | } |
| 293 | } |
| 294 | } else { |
| 295 | transaction->resp_size += PACKET_CONT_DATA_SIZE; |
| 296 | } |
| 297 | |
| 298 | /* Transaction end check */ |
| 299 | if (transaction->resp_size >= transaction->resp_bcnt) { |
| 300 | u2f_transaction_close(key, cid); |
| 301 | } |
| 302 | u2f_send_to_guest(&key->base, packet); |
| 303 | } |
| 304 | |
| 305 | static void u2f_passthru_read(void *opaque) |
| 306 | { |
| 307 | U2FPassthruState *key = opaque; |
| 308 | U2FKeyState *base = &key->base; |
| 309 | uint8_t packet[2 * U2FHID_PACKET_SIZE]; |
| 310 | int ret; |
| 311 | |
| 312 | /* Full size base queue check */ |
| 313 | if (base->pending_in_num >= U2FHID_PENDING_IN_NUM) { |
| 314 | return; |
| 315 | } |
| 316 | |
| 317 | ret = read(key->hidraw_fd, packet, sizeof(packet)); |
| 318 | if (ret < 0) { |
| 319 | /* Detach */ |
| 320 | if (base->dev.attached) { |
| 321 | usb_device_detach(&base->dev); |
| 322 | u2f_passthru_reset(key); |
| 323 | } |
| 324 | return; |
| 325 | } |
| 326 | if (ret != U2FHID_PACKET_SIZE) { |
| 327 | return; |
| 328 | } |
| 329 | u2f_passthru_recv_from_host(key, packet); |
| 330 | } |
| 331 | |
| 332 | static void u2f_passthru_recv_from_guest(U2FKeyState *base, |
| 333 | const uint8_t packet[U2FHID_PACKET_SIZE]) |
| 334 | { |
| 335 | U2FPassthruState *key = PASSTHRU_U2F_KEY(base); |
| 336 | uint8_t host_packet[U2FHID_PACKET_SIZE + 1]; |
| 337 | ssize_t written; |
| 338 | |
| 339 | if (packet_is_init(packet)) { |
| 340 | u2f_transaction_start(key, (struct packet_init *)packet); |
| 341 | } |
| 342 | |
| 343 | host_packet[0] = 0; |
| 344 | memcpy(host_packet + 1, packet, U2FHID_PACKET_SIZE); |
| 345 | |
| 346 | written = write(key->hidraw_fd, host_packet, sizeof(host_packet)); |
| 347 | if (written != sizeof(host_packet)) { |
| 348 | error_report("%s: Bad written size (req 0x%zu, val 0x%zd)", |
| 349 | TYPE_U2F_PASSTHRU, sizeof(host_packet), written); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | static bool u2f_passthru_is_u2f_device(int fd) |
| 354 | { |
| 355 | int ret, rdesc_size; |
| 356 | struct hidraw_report_descriptor rdesc; |
| 357 | const uint8_t u2f_hid_report_desc_header[] = { |
| 358 | 0x06, 0xd0, 0xf1, /* Usage Page (FIDO) */ |
| 359 | 0x09, 0x01, /* Usage (FIDO) */ |
| 360 | }; |
| 361 | |
| 362 | /* Get report descriptor size */ |
| 363 | ret = ioctl(fd, HIDIOCGRDESCSIZE, &rdesc_size); |
| 364 | if (ret < 0 || rdesc_size < sizeof(u2f_hid_report_desc_header)) { |
| 365 | return false; |
| 366 | } |
| 367 | |
| 368 | /* Get report descriptor */ |
| 369 | memset(&rdesc, 0x0, sizeof(rdesc)); |
| 370 | rdesc.size = rdesc_size; |
| 371 | ret = ioctl(fd, HIDIOCGRDESC, &rdesc); |
| 372 | if (ret < 0) { |
| 373 | return false; |
| 374 | } |
| 375 | |
| 376 | /* Header bytes cover specific U2F rdesc values */ |
| 377 | return memcmp(u2f_hid_report_desc_header, rdesc.value, |
| 378 | sizeof(u2f_hid_report_desc_header)) == 0; |
| 379 | } |
| 380 | |
| 381 | #ifdef CONFIG_LIBUDEV |
| 382 | static int u2f_passthru_open_from_device(struct udev_device *device) |
| 383 | { |
| 384 | const char *devnode = udev_device_get_devnode(device); |
| 385 | |
| 386 | int fd = qemu_open_old(devnode, O_RDWR); |
| 387 | if (fd < 0) { |
| 388 | return -1; |
| 389 | } else if (!u2f_passthru_is_u2f_device(fd)) { |
| 390 | qemu_close(fd); |
| 391 | return -1; |
| 392 | } |
| 393 | return fd; |
| 394 | } |
| 395 | |
| 396 | static int u2f_passthru_open_from_enumerate(struct udev *udev, |
| 397 | struct udev_enumerate *enumerate) |
| 398 | { |
| 399 | struct udev_list_entry *devices, *entry; |
| 400 | int ret, fd; |
| 401 | |
| 402 | ret = udev_enumerate_scan_devices(enumerate); |
| 403 | if (ret < 0) { |
| 404 | return -1; |
| 405 | } |
| 406 | |
| 407 | devices = udev_enumerate_get_list_entry(enumerate); |
| 408 | udev_list_entry_foreach(entry, devices) { |
| 409 | struct udev_device *device; |
| 410 | const char *syspath = udev_list_entry_get_name(entry); |
| 411 | |
| 412 | if (syspath == NULL) { |
| 413 | continue; |
| 414 | } |
| 415 | |
| 416 | device = udev_device_new_from_syspath(udev, syspath); |
| 417 | if (device == NULL) { |
| 418 | continue; |
| 419 | } |
| 420 | |
| 421 | fd = u2f_passthru_open_from_device(device); |
| 422 | udev_device_unref(device); |
| 423 | if (fd >= 0) { |
| 424 | return fd; |
| 425 | } |
| 426 | } |
| 427 | return -1; |
| 428 | } |
| 429 | |
| 430 | static int u2f_passthru_open_from_scan(void) |
| 431 | { |
| 432 | struct udev *udev; |
| 433 | struct udev_enumerate *enumerate; |
| 434 | int ret, fd = -1; |
| 435 | |
| 436 | udev = udev_new(); |
| 437 | if (udev == NULL) { |
| 438 | return -1; |
| 439 | } |
| 440 | |
| 441 | enumerate = udev_enumerate_new(udev); |
| 442 | if (enumerate == NULL) { |
| 443 | udev_unref(udev); |
| 444 | return -1; |
| 445 | } |
| 446 | |
| 447 | ret = udev_enumerate_add_match_subsystem(enumerate, "hidraw"); |
| 448 | if (ret >= 0) { |
| 449 | fd = u2f_passthru_open_from_enumerate(udev, enumerate); |
| 450 | } |
| 451 | |
| 452 | udev_enumerate_unref(enumerate); |
| 453 | udev_unref(udev); |
| 454 | |
| 455 | return fd; |
| 456 | } |
| 457 | #endif |
| 458 | |
| 459 | static void u2f_passthru_unrealize(U2FKeyState *base) |
| 460 | { |
| 461 | U2FPassthruState *key = PASSTHRU_U2F_KEY(base); |
| 462 | |
| 463 | u2f_passthru_reset(key); |
| 464 | qemu_close(key->hidraw_fd); |
| 465 | } |
| 466 | |
| 467 | static void u2f_passthru_realize(U2FKeyState *base, Error **errp) |
| 468 | { |
| 469 | U2FPassthruState *key = PASSTHRU_U2F_KEY(base); |
| 470 | int fd; |
| 471 | |
| 472 | if (key->hidraw == NULL) { |
| 473 | #ifdef CONFIG_LIBUDEV |
| 474 | fd = u2f_passthru_open_from_scan(); |
| 475 | if (fd < 0) { |
| 476 | error_setg(errp, "%s: Failed to find a U2F USB device", |
| 477 | TYPE_U2F_PASSTHRU); |
| 478 | return; |
| 479 | } |
| 480 | #else |
| 481 | error_setg(errp, "%s: Missing hidraw", TYPE_U2F_PASSTHRU); |
| 482 | return; |
| 483 | #endif |
| 484 | } else { |
| 485 | fd = qemu_open(key->hidraw, O_RDWR, errp); |
| 486 | if (fd < 0) { |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | if (!u2f_passthru_is_u2f_device(fd)) { |
| 491 | qemu_close(fd); |
| 492 | error_setg(errp, "%s: Passed hidraw does not represent " |
| 493 | "a U2F HID device", TYPE_U2F_PASSTHRU); |
| 494 | return; |
| 495 | } |
| 496 | } |
| 497 | key->hidraw_fd = fd; |
| 498 | u2f_passthru_reset(key); |
| 499 | } |
| 500 | |
| 501 | static int u2f_passthru_post_load(void *opaque, int version_id) |
| 502 | { |
| 503 | U2FPassthruState *key = opaque; |
| 504 | u2f_passthru_reset(key); |
| 505 | return 0; |
| 506 | } |
| 507 | |
| 508 | static const VMStateDescription u2f_passthru_vmstate = { |
| 509 | .name = "u2f-key-passthru", |
| 510 | .version_id = 1, |
| 511 | .minimum_version_id = 1, |
| 512 | .post_load = u2f_passthru_post_load, |
| 513 | .fields = (const VMStateField[]) { |
| 514 | VMSTATE_U2F_KEY(base, U2FPassthruState), |
| 515 | VMSTATE_END_OF_LIST() |
| 516 | } |
| 517 | }; |
| 518 | |
| 519 | static const Property u2f_passthru_properties[] = { |
| 520 | DEFINE_PROP_STRING("hidraw", U2FPassthruState, hidraw), |
| 521 | }; |
| 522 | |
| 523 | static void u2f_passthru_class_init(ObjectClass *klass, const void *data) |
| 524 | { |
| 525 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 526 | U2FKeyClass *kc = U2F_KEY_CLASS(klass); |
| 527 | |
| 528 | kc->realize = u2f_passthru_realize; |
| 529 | kc->unrealize = u2f_passthru_unrealize; |
| 530 | kc->recv_from_guest = u2f_passthru_recv_from_guest; |
| 531 | dc->desc = "QEMU U2F passthrough key"; |
| 532 | dc->vmsd = &u2f_passthru_vmstate; |
| 533 | device_class_set_props(dc, u2f_passthru_properties); |
| 534 | set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
| 535 | } |
| 536 | |
| 537 | static const TypeInfo u2f_key_passthru_info = { |
| 538 | .name = TYPE_U2F_PASSTHRU, |
| 539 | .parent = TYPE_U2F_KEY, |
| 540 | .instance_size = sizeof(U2FPassthruState), |
| 541 | .class_init = u2f_passthru_class_init |
| 542 | }; |
| 543 | |
| 544 | static void u2f_key_passthru_register_types(void) |
| 545 | { |
| 546 | type_register_static(&u2f_key_passthru_info); |
| 547 | } |
| 548 | |
| 549 | type_init(u2f_key_passthru_register_types) |