1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (C) 2021 Samsung Electrnoics 4 * Bongsu Jeon <bongsu.jeon@samsung.com> 5 * 6 * Test code for nci 7 */ 8 9#include <stdlib.h> 10#include <errno.h> 11#include <string.h> 12#include <sys/ioctl.h> 13#include <fcntl.h> 14#include <pthread.h> 15#include <linux/genetlink.h> 16#include <sys/socket.h> 17#include <linux/nfc.h> 18 19#include "../kselftest_harness.h" 20 21#define GENLMSG_DATA(glh) ((void *)(NLMSG_DATA(glh) + GENL_HDRLEN)) 22#define GENLMSG_PAYLOAD(glh) (NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN) 23#define NLA_DATA(na) ((void *)((char *)(na) + NLA_HDRLEN)) 24#define NLA_PAYLOAD(len) ((len) - NLA_HDRLEN) 25 26#define MAX_MSG_SIZE 1024 27 28#define IOCTL_GET_NCIDEV_IDX 0 29#define VIRTUAL_NFC_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ 30 NFC_PROTO_MIFARE_MASK | \ 31 NFC_PROTO_FELICA_MASK | \ 32 NFC_PROTO_ISO14443_MASK | \ 33 NFC_PROTO_ISO14443_B_MASK | \ 34 NFC_PROTO_ISO15693_MASK) 35 36const __u8 nci_reset_cmd[] = {0x20, 0x00, 0x01, 0x01}; 37const __u8 nci_init_cmd[] = {0x20, 0x01, 0x00}; 38const __u8 nci_rf_discovery_cmd[] = {0x21, 0x03, 0x09, 0x04, 0x00, 0x01, 39 0x01, 0x01, 0x02, 0x01, 0x06, 0x01}; 40const __u8 nci_init_cmd_v2[] = {0x20, 0x01, 0x02, 0x00, 0x00}; 41const __u8 nci_rf_disc_map_cmd[] = {0x21, 0x00, 0x07, 0x02, 0x04, 0x03, 42 0x02, 0x05, 0x03, 0x03}; 43const __u8 nci_rf_deact_cmd[] = {0x21, 0x06, 0x01, 0x00}; 44const __u8 nci_reset_rsp[] = {0x40, 0x00, 0x03, 0x00, 0x10, 0x01}; 45const __u8 nci_reset_rsp_v2[] = {0x40, 0x00, 0x01, 0x00}; 46const __u8 nci_reset_ntf[] = {0x60, 0x00, 0x09, 0x02, 0x01, 0x20, 0x0e, 47 0x04, 0x61, 0x00, 0x04, 0x02}; 48const __u8 nci_init_rsp[] = {0x40, 0x01, 0x14, 0x00, 0x02, 0x0e, 0x02, 49 0x00, 0x03, 0x01, 0x02, 0x03, 0x02, 0xc8, 50 0x00, 0xff, 0x10, 0x00, 0x0e, 0x12, 0x00, 51 0x00, 0x04}; 52const __u8 nci_init_rsp_v2[] = {0x40, 0x01, 0x1c, 0x00, 0x1a, 0x7e, 0x06, 53 0x00, 0x02, 0x92, 0x04, 0xff, 0xff, 0x01, 54 0x00, 0x40, 0x06, 0x00, 0x00, 0x01, 0x01, 55 0x00, 0x02, 0x00, 0x03, 0x01, 0x01, 0x06, 56 0x00, 0x80, 0x00}; 57const __u8 nci_rf_disc_map_rsp[] = {0x41, 0x00, 0x01, 0x00}; 58const __u8 nci_rf_disc_rsp[] = {0x41, 0x03, 0x01, 0x00}; 59const __u8 nci_rf_deact_rsp[] = {0x41, 0x06, 0x01, 0x00}; 60const __u8 nci_rf_deact_ntf[] = {0x61, 0x06, 0x02, 0x00, 0x00}; 61const __u8 nci_rf_activate_ntf[] = {0x61, 0x05, 0x1D, 0x01, 0x02, 0x04, 0x00, 62 0xFF, 0xFF, 0x0C, 0x44, 0x03, 0x07, 0x04, 63 0x62, 0x26, 0x11, 0x80, 0x1D, 0x80, 0x01, 64 0x20, 0x00, 0x00, 0x00, 0x06, 0x05, 0x75, 65 0x77, 0x81, 0x02, 0x80}; 66const __u8 nci_t4t_select_cmd[] = {0x00, 0x00, 0x0C, 0x00, 0xA4, 0x04, 0x00, 67 0x07, 0xD2, 0x76, 0x00, 0x00, 0x85, 0x01, 0x01}; 68const __u8 nci_t4t_select_cmd2[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02, 69 0xE1, 0x03}; 70const __u8 nci_t4t_select_cmd3[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02, 71 0xE1, 0x04}; 72const __u8 nci_t4t_read_cmd[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x0F}; 73const __u8 nci_t4t_read_rsp[] = {0x00, 0x00, 0x11, 0x00, 0x0F, 0x20, 0x00, 0x3B, 74 0x00, 0x34, 0x04, 0x06, 0xE1, 0x04, 0x08, 0x00, 75 0x00, 0x00, 0x90, 0x00}; 76const __u8 nci_t4t_read_cmd2[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x02}; 77const __u8 nci_t4t_read_rsp2[] = {0x00, 0x00, 0x04, 0x00, 0x0F, 0x90, 0x00}; 78const __u8 nci_t4t_read_cmd3[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x02, 0x0F}; 79const __u8 nci_t4t_read_rsp3[] = {0x00, 0x00, 0x11, 0xD1, 0x01, 0x0B, 0x54, 0x02, 80 0x65, 0x6E, 0x4E, 0x46, 0x43, 0x20, 0x54, 0x45, 81 0x53, 0x54, 0x90, 0x00}; 82const __u8 nci_t4t_rsp_ok[] = {0x00, 0x00, 0x02, 0x90, 0x00}; 83 84struct msgtemplate { 85 struct nlmsghdr n; 86 struct genlmsghdr g; 87 char buf[MAX_MSG_SIZE]; 88}; 89 90static int create_nl_socket(void) 91{ 92 int fd; 93 struct sockaddr_nl local; 94 95 fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); 96 if (fd < 0) 97 return -1; 98 99 memset(&local, 0, sizeof(local)); 100 local.nl_family = AF_NETLINK; 101 102 if (bind(fd, (struct sockaddr *)&local, sizeof(local)) < 0) 103 goto error; 104 105 return fd; 106error: 107 close(fd); 108 return -1; 109} 110 111static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid, 112 __u8 genl_cmd, int nla_num, __u16 nla_type[], 113 void *nla_data[], int nla_len[], __u16 flags) 114{ 115 struct sockaddr_nl nladdr; 116 struct msgtemplate msg; 117 struct nlattr *na; 118 int cnt, prv_len; 119 int r, buflen; 120 char *buf; 121 122 msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN); 123 msg.n.nlmsg_type = nlmsg_type; 124 msg.n.nlmsg_flags = flags; 125 msg.n.nlmsg_seq = 0; 126 msg.n.nlmsg_pid = nlmsg_pid; 127 msg.g.cmd = genl_cmd; 128 msg.g.version = 0x1; 129 130 prv_len = 0; 131 for (cnt = 0; cnt < nla_num; cnt++) { 132 na = (struct nlattr *)(GENLMSG_DATA(&msg) + prv_len); 133 na->nla_type = nla_type[cnt]; 134 na->nla_len = nla_len[cnt] + NLA_HDRLEN; 135 136 if (nla_len[cnt] > 0) 137 memcpy(NLA_DATA(na), nla_data[cnt], nla_len[cnt]); 138 139 prv_len = NLA_ALIGN(nla_len[cnt]) + NLA_HDRLEN; 140 msg.n.nlmsg_len += prv_len; 141 } 142 143 buf = (char *)&msg; 144 buflen = msg.n.nlmsg_len; 145 memset(&nladdr, 0, sizeof(nladdr)); 146 nladdr.nl_family = AF_NETLINK; 147 148 while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *)&nladdr, 149 sizeof(nladdr))) < buflen) { 150 if (r > 0) { 151 buf += r; 152 buflen -= r; 153 } else if (errno != EAGAIN) { 154 return -1; 155 } 156 } 157 return 0; 158} 159 160static int send_get_nfc_family(int sd, __u32 pid) 161{ 162 __u16 nla_get_family_type = CTRL_ATTR_FAMILY_NAME; 163 void *nla_get_family_data; 164 int nla_get_family_len; 165 char family_name[100]; 166 167 nla_get_family_len = strlen(NFC_GENL_NAME) + 1; 168 strcpy(family_name, NFC_GENL_NAME); 169 nla_get_family_data = family_name; 170 171 return send_cmd_mt_nla(sd, GENL_ID_CTRL, pid, CTRL_CMD_GETFAMILY, 172 1, &nla_get_family_type, &nla_get_family_data, 173 &nla_get_family_len, NLM_F_REQUEST); 174} 175 176static int get_family_id(int sd, __u32 pid, __u32 *event_group) 177{ 178 struct { 179 struct nlmsghdr n; 180 struct genlmsghdr g; 181 char buf[512]; 182 } ans; 183 struct nlattr *na; 184 int resp_len; 185 __u16 id; 186 int len; 187 int rc; 188 189 rc = send_get_nfc_family(sd, pid); 190 191 if (rc < 0) 192 return 0; 193 194 resp_len = recv(sd, &ans, sizeof(ans), 0); 195 196 if (ans.n.nlmsg_type == NLMSG_ERROR || resp_len < 0 || 197 !NLMSG_OK(&ans.n, resp_len)) 198 return 0; 199 200 len = 0; 201 resp_len = GENLMSG_PAYLOAD(&ans.n); 202 na = (struct nlattr *)GENLMSG_DATA(&ans); 203 204 while (len < resp_len) { 205 len += NLA_ALIGN(na->nla_len); 206 if (na->nla_type == CTRL_ATTR_FAMILY_ID) { 207 id = *(__u16 *)NLA_DATA(na); 208 } else if (na->nla_type == CTRL_ATTR_MCAST_GROUPS) { 209 struct nlattr *nested_na; 210 struct nlattr *group_na; 211 int group_attr_len; 212 int group_attr; 213 214 nested_na = (struct nlattr *)((char *)na + NLA_HDRLEN); 215 group_na = (struct nlattr *)((char *)nested_na + NLA_HDRLEN); 216 group_attr_len = 0; 217 218 for (group_attr = CTRL_ATTR_MCAST_GRP_UNSPEC; 219 group_attr < CTRL_ATTR_MCAST_GRP_MAX; group_attr++) { 220 if (group_na->nla_type == CTRL_ATTR_MCAST_GRP_ID) { 221 *event_group = *(__u32 *)((char *)group_na + 222 NLA_HDRLEN); 223 break; 224 } 225 226 group_attr_len += NLA_ALIGN(group_na->nla_len) + 227 NLA_HDRLEN; 228 if (group_attr_len >= nested_na->nla_len) 229 break; 230 231 group_na = (struct nlattr *)((char *)group_na + 232 NLA_ALIGN(group_na->nla_len)); 233 } 234 } 235 na = (struct nlattr *)(GENLMSG_DATA(&ans) + len); 236 } 237 return id; 238} 239 240static int send_cmd_with_idx(int sd, __u16 nlmsg_type, __u32 nlmsg_pid, 241 __u8 genl_cmd, int dev_id) 242{ 243 __u16 nla_type = NFC_ATTR_DEVICE_INDEX; 244 void *nla_data = &dev_id; 245 int nla_len = 4; 246 247 return send_cmd_mt_nla(sd, nlmsg_type, nlmsg_pid, genl_cmd, 1, 248 &nla_type, &nla_data, &nla_len, NLM_F_REQUEST); 249} 250 251static int get_nci_devid(int sd, __u16 fid, __u32 pid, int dev_id, struct msgtemplate *msg) 252{ 253 int rc, resp_len; 254 255 rc = send_cmd_with_idx(sd, fid, pid, NFC_CMD_GET_DEVICE, dev_id); 256 if (rc < 0) { 257 rc = -1; 258 goto error; 259 } 260 261 resp_len = recv(sd, msg, sizeof(*msg), 0); 262 if (resp_len < 0) { 263 rc = -2; 264 goto error; 265 } 266 267 if (msg->n.nlmsg_type == NLMSG_ERROR || 268 !NLMSG_OK(&msg->n, resp_len)) { 269 rc = -3; 270 goto error; 271 } 272 273 return 0; 274error: 275 return rc; 276} 277 278static __u8 get_dev_enable_state(struct msgtemplate *msg) 279{ 280 struct nlattr *na; 281 int resp_len; 282 int len; 283 284 resp_len = GENLMSG_PAYLOAD(&msg->n); 285 na = (struct nlattr *)GENLMSG_DATA(msg); 286 len = 0; 287 288 while (len < resp_len) { 289 len += NLA_ALIGN(na->nla_len); 290 if (na->nla_type == NFC_ATTR_DEVICE_POWERED) 291 return *(char *)NLA_DATA(na); 292 na = (struct nlattr *)(GENLMSG_DATA(msg) + len); 293 } 294 295 return resp_len; 296} 297 298FIXTURE(NCI) { 299 int virtual_nci_fd; 300 bool open_state; 301 int dev_idex; 302 bool isNCI2; 303 int proto; 304 __u32 pid; 305 __u16 fid; 306 int sd; 307}; 308 309FIXTURE_VARIANT(NCI) { 310 bool isNCI2; 311}; 312 313FIXTURE_VARIANT_ADD(NCI, NCI1_0) { 314 .isNCI2 = false, 315}; 316 317FIXTURE_VARIANT_ADD(NCI, NCI2_0) { 318 .isNCI2 = true, 319}; 320 321static void *virtual_dev_open(void *data) 322{ 323 char buf[258]; 324 int dev_fd; 325 int len; 326 327 dev_fd = *(int *)data; 328 329 len = read(dev_fd, buf, 258); 330 if (len <= 0) 331 goto error; 332 if (len != sizeof(nci_reset_cmd)) 333 goto error; 334 if (memcmp(nci_reset_cmd, buf, len)) 335 goto error; 336 write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp)); 337 338 len = read(dev_fd, buf, 258); 339 if (len <= 0) 340 goto error; 341 if (len != sizeof(nci_init_cmd)) 342 goto error; 343 if (memcmp(nci_init_cmd, buf, len)) 344 goto error; 345 write(dev_fd, nci_init_rsp, sizeof(nci_init_rsp)); 346 347 len = read(dev_fd, buf, 258); 348 if (len <= 0) 349 goto error; 350 if (len != sizeof(nci_rf_disc_map_cmd)) 351 goto error; 352 if (memcmp(nci_rf_disc_map_cmd, buf, len)) 353 goto error; 354 write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp)); 355 356 return (void *)0; 357error: 358 return (void *)-1; 359} 360 361static void *virtual_dev_open_v2(void *data) 362{ 363 char buf[258]; 364 int dev_fd; 365 int len; 366 367 dev_fd = *(int *)data; 368 369 len = read(dev_fd, buf, 258); 370 if (len <= 0) 371 goto error; 372 if (len != sizeof(nci_reset_cmd)) 373 goto error; 374 if (memcmp(nci_reset_cmd, buf, len)) 375 goto error; 376 write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2)); 377 write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf)); 378 379 len = read(dev_fd, buf, 258); 380 if (len <= 0) 381 goto error; 382 if (len != sizeof(nci_init_cmd_v2)) 383 goto error; 384 if (memcmp(nci_init_cmd_v2, buf, len)) 385 goto error; 386 write(dev_fd, nci_init_rsp_v2, sizeof(nci_init_rsp_v2)); 387 388 len = read(dev_fd, buf, 258); 389 if (len <= 0) 390 goto error; 391 if (len != sizeof(nci_rf_disc_map_cmd)) 392 goto error; 393 if (memcmp(nci_rf_disc_map_cmd, buf, len)) 394 goto error; 395 write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp)); 396 397 return (void *)0; 398error: 399 return (void *)-1; 400} 401 402FIXTURE_SETUP(NCI) 403{ 404 struct msgtemplate msg; 405 pthread_t thread_t; 406 __u32 event_group; 407 int status; 408 int rc; 409 410 self->open_state = false; 411 self->proto = VIRTUAL_NFC_PROTOCOLS; 412 self->isNCI2 = variant->isNCI2; 413 414 self->sd = create_nl_socket(); 415 ASSERT_NE(self->sd, -1); 416 417 self->pid = getpid(); 418 self->fid = get_family_id(self->sd, self->pid, &event_group); 419 ASSERT_NE(self->fid, -1); 420 421 self->virtual_nci_fd = open("/dev/virtual_nci", O_RDWR); 422 ASSERT_GT(self->virtual_nci_fd, -1); 423 424 rc = setsockopt(self->sd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &event_group, 425 sizeof(event_group)); 426 ASSERT_NE(rc, -1); 427 428 rc = ioctl(self->virtual_nci_fd, IOCTL_GET_NCIDEV_IDX, &self->dev_idex); 429 ASSERT_EQ(rc, 0); 430 431 rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, &msg); 432 ASSERT_EQ(rc, 0); 433 EXPECT_EQ(get_dev_enable_state(&msg), 0); 434 435 if (self->isNCI2) 436 rc = pthread_create(&thread_t, NULL, virtual_dev_open_v2, 437 (void *)&self->virtual_nci_fd); 438 else 439 rc = pthread_create(&thread_t, NULL, virtual_dev_open, 440 (void *)&self->virtual_nci_fd); 441 ASSERT_GT(rc, -1); 442 443 rc = send_cmd_with_idx(self->sd, self->fid, self->pid, 444 NFC_CMD_DEV_UP, self->dev_idex); 445 EXPECT_EQ(rc, 0); 446 447 pthread_join(thread_t, (void **)&status); 448 ASSERT_EQ(status, 0); 449 self->open_state = true; 450} 451 452static void *virtual_deinit(void *data) 453{ 454 char buf[258]; 455 int dev_fd; 456 int len; 457 458 dev_fd = *(int *)data; 459 460 len = read(dev_fd, buf, 258); 461 if (len <= 0) 462 goto error; 463 if (len != sizeof(nci_reset_cmd)) 464 goto error; 465 if (memcmp(nci_reset_cmd, buf, len)) 466 goto error; 467 write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp)); 468 469 return (void *)0; 470error: 471 return (void *)-1; 472} 473 474static void *virtual_deinit_v2(void *data) 475{ 476 char buf[258]; 477 int dev_fd; 478 int len; 479 480 dev_fd = *(int *)data; 481 482 len = read(dev_fd, buf, 258); 483 if (len <= 0) 484 goto error; 485 if (len != sizeof(nci_reset_cmd)) 486 goto error; 487 if (memcmp(nci_reset_cmd, buf, len)) 488 goto error; 489 write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2)); 490 write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf)); 491 492 return (void *)0; 493error: 494 return (void *)-1; 495} 496 497FIXTURE_TEARDOWN(NCI) 498{ 499 pthread_t thread_t; 500 int status; 501 int rc; 502 503 if (self->open_state) { 504 if (self->isNCI2) 505 rc = pthread_create(&thread_t, NULL, 506 virtual_deinit_v2, 507 (void *)&self->virtual_nci_fd); 508 else 509 rc = pthread_create(&thread_t, NULL, virtual_deinit, 510 (void *)&self->virtual_nci_fd); 511 512 ASSERT_GT(rc, -1); 513 rc = send_cmd_with_idx(self->sd, self->fid, self->pid, 514 NFC_CMD_DEV_DOWN, self->dev_idex); 515 EXPECT_EQ(rc, 0); 516 517 pthread_join(thread_t, (void **)&status); 518 ASSERT_EQ(status, 0); 519 } 520 521 close(self->sd); 522 close(self->virtual_nci_fd); 523 self->open_state = false; 524} 525 526TEST_F(NCI, init) 527{ 528 struct msgtemplate msg; 529 int rc; 530 531 rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, 532 &msg); 533 ASSERT_EQ(rc, 0); 534 EXPECT_EQ(get_dev_enable_state(&msg), 1); 535} 536 537static void *virtual_poll_start(void *data) 538{ 539 char buf[258]; 540 int dev_fd; 541 int len; 542 543 dev_fd = *(int *)data; 544 545 len = read(dev_fd, buf, 258); 546 if (len <= 0) 547 goto error; 548 if (len != sizeof(nci_rf_discovery_cmd)) 549 goto error; 550 if (memcmp(nci_rf_discovery_cmd, buf, len)) 551 goto error; 552 write(dev_fd, nci_rf_disc_rsp, sizeof(nci_rf_disc_rsp)); 553 554 return (void *)0; 555error: 556 return (void *)-1; 557} 558 559static void *virtual_poll_stop(void *data) 560{ 561 char buf[258]; 562 int dev_fd; 563 int len; 564 565 dev_fd = *(int *)data; 566 567 len = read(dev_fd, buf, 258); 568 if (len <= 0) 569 goto error; 570 if (len != sizeof(nci_rf_deact_cmd)) 571 goto error; 572 if (memcmp(nci_rf_deact_cmd, buf, len)) 573 goto error; 574 write(dev_fd, nci_rf_deact_rsp, sizeof(nci_rf_deact_rsp)); 575 576 return (void *)0; 577error: 578 return (void *)-1; 579} 580 581int start_polling(int dev_idx, int proto, int virtual_fd, int sd, int fid, int pid) 582{ 583 __u16 nla_start_poll_type[2] = {NFC_ATTR_DEVICE_INDEX, 584 NFC_ATTR_PROTOCOLS}; 585 void *nla_start_poll_data[2] = {&dev_idx, &proto}; 586 int nla_start_poll_len[2] = {4, 4}; 587 pthread_t thread_t; 588 int status; 589 int rc; 590 591 rc = pthread_create(&thread_t, NULL, virtual_poll_start, 592 (void *)&virtual_fd); 593 if (rc < 0) 594 return rc; 595 596 rc = send_cmd_mt_nla(sd, fid, pid, NFC_CMD_START_POLL, 2, nla_start_poll_type, 597 nla_start_poll_data, nla_start_poll_len, NLM_F_REQUEST); 598 if (rc != 0) 599 return rc; 600 601 pthread_join(thread_t, (void **)&status); 602 return status; 603} 604 605int stop_polling(int dev_idx, int virtual_fd, int sd, int fid, int pid) 606{ 607 pthread_t thread_t; 608 int status; 609 int rc; 610 611 rc = pthread_create(&thread_t, NULL, virtual_poll_stop, 612 (void *)&virtual_fd); 613 if (rc < 0) 614 return rc; 615 616 rc = send_cmd_with_idx(sd, fid, pid, 617 NFC_CMD_STOP_POLL, dev_idx); 618 if (rc != 0) 619 return rc; 620 621 pthread_join(thread_t, (void **)&status); 622 return status; 623} 624 625TEST_F(NCI, start_poll) 626{ 627 int status; 628 629 status = start_polling(self->dev_idex, self->proto, self->virtual_nci_fd, 630 self->sd, self->fid, self->pid); 631 EXPECT_EQ(status, 0); 632 633 status = stop_polling(self->dev_idex, self->virtual_nci_fd, self->sd, 634 self->fid, self->pid); 635 EXPECT_EQ(status, 0); 636} 637 638int get_taginfo(int dev_idx, int sd, int fid, int pid) 639{ 640 struct { 641 struct nlmsghdr n; 642 struct genlmsghdr g; 643 char buf[512]; 644 } ans; 645 646 struct nlattr *na; 647 __u32 protocol; 648 int targetidx; 649 __u8 sel_res; 650 int resp_len; 651 int len; 652 653 __u16 tagid_type; 654 void *tagid_type_data; 655 int tagid_len; 656 657 tagid_type = NFC_ATTR_DEVICE_INDEX; 658 tagid_type_data = &dev_idx; 659 tagid_len = 4; 660 661 send_cmd_mt_nla(sd, fid, pid, NFC_CMD_GET_TARGET, 1, &tagid_type, 662 &tagid_type_data, &tagid_len, NLM_F_REQUEST | NLM_F_DUMP); 663 resp_len = recv(sd, &ans, sizeof(ans), 0); 664 if (ans.n.nlmsg_type == NLMSG_ERROR || resp_len < 0 || 665 !NLMSG_OK(&ans.n, resp_len)) 666 return -1; 667 668 resp_len = GENLMSG_PAYLOAD(&ans.n); 669 na = (struct nlattr *)GENLMSG_DATA(&ans); 670 671 len = 0; 672 targetidx = -1; 673 protocol = -1; 674 sel_res = -1; 675 676 while (len < resp_len) { 677 len += NLA_ALIGN(na->nla_len); 678 679 if (na->nla_type == NFC_ATTR_TARGET_INDEX) 680 targetidx = *(int *)((char *)na + NLA_HDRLEN); 681 else if (na->nla_type == NFC_ATTR_TARGET_SEL_RES) 682 sel_res = *(__u8 *)((char *)na + NLA_HDRLEN); 683 else if (na->nla_type == NFC_ATTR_PROTOCOLS) 684 protocol = *(__u32 *)((char *)na + NLA_HDRLEN); 685 686 na = (struct nlattr *)(GENLMSG_DATA(&ans) + len); 687 } 688 689 if (targetidx == -1 || sel_res != 0x20 || protocol != NFC_PROTO_ISO14443_MASK) 690 return -1; 691 692 return targetidx; 693} 694 695int connect_socket(int dev_idx, int target_idx) 696{ 697 struct sockaddr_nfc addr; 698 int sock; 699 int err = 0; 700 701 sock = socket(AF_NFC, SOCK_SEQPACKET, NFC_SOCKPROTO_RAW); 702 if (sock == -1) 703 return -1; 704 705 addr.sa_family = AF_NFC; 706 addr.dev_idx = dev_idx; 707 addr.target_idx = target_idx; 708 addr.nfc_protocol = NFC_PROTO_ISO14443; 709 710 err = connect(sock, (struct sockaddr *)&addr, sizeof(addr)); 711 if (err) { 712 close(sock); 713 return -1; 714 } 715 716 return sock; 717} 718 719int connect_tag(int dev_idx, int virtual_fd, int sd, int fid, int pid) 720{ 721 struct genlmsghdr *genlhdr; 722 struct nlattr *na; 723 char evt_data[255]; 724 int target_idx; 725 int resp_len; 726 int evt_dev; 727 728 write(virtual_fd, nci_rf_activate_ntf, sizeof(nci_rf_activate_ntf)); 729 resp_len = recv(sd, evt_data, sizeof(evt_data), 0); 730 if (resp_len < 0) 731 return -1; 732 733 genlhdr = (struct genlmsghdr *)((struct nlmsghdr *)evt_data + 1); 734 na = (struct nlattr *)(genlhdr + 1); 735 evt_dev = *(int *)((char *)na + NLA_HDRLEN); 736 if (dev_idx != evt_dev) 737 return -1; 738 739 target_idx = get_taginfo(dev_idx, sd, fid, pid); 740 if (target_idx == -1) 741 return -1; 742 return connect_socket(dev_idx, target_idx); 743} 744 745int read_write_nci_cmd(int nfc_sock, int virtual_fd, const __u8 *cmd, __u32 cmd_len, 746 const __u8 *rsp, __u32 rsp_len) 747{ 748 char buf[256]; 749 int len; 750 751 send(nfc_sock, &cmd[3], cmd_len - 3, 0); 752 len = read(virtual_fd, buf, cmd_len); 753 if (len < 0 || memcmp(buf, cmd, cmd_len)) 754 return -1; 755 756 write(virtual_fd, rsp, rsp_len); 757 len = recv(nfc_sock, buf, rsp_len - 2, 0); 758 if (len < 0 || memcmp(&buf[1], &rsp[3], rsp_len - 3)) 759 return -1; 760 761 return 0; 762} 763 764int read_tag(int nfc_sock, int virtual_fd) 765{ 766 if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd, 767 sizeof(nci_t4t_select_cmd), nci_t4t_rsp_ok, 768 sizeof(nci_t4t_rsp_ok))) 769 return -1; 770 771 if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd2, 772 sizeof(nci_t4t_select_cmd2), nci_t4t_rsp_ok, 773 sizeof(nci_t4t_rsp_ok))) 774 return -1; 775 776 if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd, 777 sizeof(nci_t4t_read_cmd), nci_t4t_read_rsp, 778 sizeof(nci_t4t_read_rsp))) 779 return -1; 780 781 if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd3, 782 sizeof(nci_t4t_select_cmd3), nci_t4t_rsp_ok, 783 sizeof(nci_t4t_rsp_ok))) 784 return -1; 785 786 if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd2, 787 sizeof(nci_t4t_read_cmd2), nci_t4t_read_rsp2, 788 sizeof(nci_t4t_read_rsp2))) 789 return -1; 790 791 return read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd3, 792 sizeof(nci_t4t_read_cmd3), nci_t4t_read_rsp3, 793 sizeof(nci_t4t_read_rsp3)); 794} 795 796static void *virtual_deactivate_proc(void *data) 797{ 798 int virtual_fd; 799 char buf[256]; 800 int deactcmd_len; 801 int len; 802 803 virtual_fd = *(int *)data; 804 deactcmd_len = sizeof(nci_rf_deact_cmd); 805 len = read(virtual_fd, buf, deactcmd_len); 806 if (len != deactcmd_len || memcmp(buf, nci_rf_deact_cmd, deactcmd_len)) 807 return (void *)-1; 808 809 write(virtual_fd, nci_rf_deact_rsp, sizeof(nci_rf_deact_rsp)); 810 write(virtual_fd, nci_rf_deact_ntf, sizeof(nci_rf_deact_ntf)); 811 812 return (void *)0; 813} 814 815int disconnect_tag(int nfc_sock, int virtual_fd) 816{ 817 pthread_t thread_t; 818 char buf[256]; 819 int status; 820 int len; 821 822 send(nfc_sock, &nci_t4t_select_cmd3[3], sizeof(nci_t4t_select_cmd3) - 3, 0); 823 len = read(virtual_fd, buf, sizeof(nci_t4t_select_cmd3)); 824 if (len < 0 || memcmp(buf, nci_t4t_select_cmd3, sizeof(nci_t4t_select_cmd3))) 825 return -1; 826 827 len = recv(nfc_sock, buf, sizeof(nci_t4t_rsp_ok), 0); 828 if (len != -1) 829 return -1; 830 831 status = pthread_create(&thread_t, NULL, virtual_deactivate_proc, 832 (void *)&virtual_fd); 833 834 close(nfc_sock); 835 pthread_join(thread_t, (void **)&status); 836 return status; 837} 838 839TEST_F(NCI, t4t_tag_read) 840{ 841 int nfc_sock; 842 int status; 843 844 status = start_polling(self->dev_idex, self->proto, self->virtual_nci_fd, 845 self->sd, self->fid, self->pid); 846 EXPECT_EQ(status, 0); 847 848 nfc_sock = connect_tag(self->dev_idex, self->virtual_nci_fd, self->sd, 849 self->fid, self->pid); 850 ASSERT_GT(nfc_sock, -1); 851 852 status = read_tag(nfc_sock, self->virtual_nci_fd); 853 ASSERT_EQ(status, 0); 854 855 status = disconnect_tag(nfc_sock, self->virtual_nci_fd); 856 EXPECT_EQ(status, 0); 857} 858 859TEST_F(NCI, deinit) 860{ 861 struct msgtemplate msg; 862 pthread_t thread_t; 863 int status; 864 int rc; 865 866 rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, 867 &msg); 868 ASSERT_EQ(rc, 0); 869 EXPECT_EQ(get_dev_enable_state(&msg), 1); 870 871 if (self->isNCI2) 872 rc = pthread_create(&thread_t, NULL, virtual_deinit_v2, 873 (void *)&self->virtual_nci_fd); 874 else 875 rc = pthread_create(&thread_t, NULL, virtual_deinit, 876 (void *)&self->virtual_nci_fd); 877 ASSERT_GT(rc, -1); 878 879 rc = send_cmd_with_idx(self->sd, self->fid, self->pid, 880 NFC_CMD_DEV_DOWN, self->dev_idex); 881 EXPECT_EQ(rc, 0); 882 883 pthread_join(thread_t, (void **)&status); 884 self->open_state = 0; 885 ASSERT_EQ(status, 0); 886 887 rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, 888 &msg); 889 ASSERT_EQ(rc, 0); 890 EXPECT_EQ(get_dev_enable_state(&msg), 0); 891 892 /* Test that operations that normally send packets to the driver 893 * don't cause issues when the device is already closed. 894 * Note: the send of NFC_CMD_DEV_UP itself still succeeds it's just 895 * that the device won't actually be up. 896 */ 897 close(self->virtual_nci_fd); 898 self->virtual_nci_fd = -1; 899 rc = send_cmd_with_idx(self->sd, self->fid, self->pid, 900 NFC_CMD_DEV_UP, self->dev_idex); 901 EXPECT_EQ(rc, 0); 902} 903 904TEST_HARNESS_MAIN 905