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
36 const __u8 nci_reset_cmd[] = {0x20, 0x00, 0x01, 0x01};
37 const __u8 nci_init_cmd[] = {0x20, 0x01, 0x00};
38 const __u8 nci_rf_discovery_cmd[] = {0x21, 0x03, 0x09, 0x04, 0x00, 0x01,
39 0x01, 0x01, 0x02, 0x01, 0x06, 0x01};
40 const __u8 nci_init_cmd_v2[] = {0x20, 0x01, 0x02, 0x00, 0x00};
41 const __u8 nci_rf_disc_map_cmd[] = {0x21, 0x00, 0x07, 0x02, 0x04, 0x03,
42 0x02, 0x05, 0x03, 0x03};
43 const __u8 nci_rf_deact_cmd[] = {0x21, 0x06, 0x01, 0x00};
44 const __u8 nci_reset_rsp[] = {0x40, 0x00, 0x03, 0x00, 0x10, 0x01};
45 const __u8 nci_reset_rsp_v2[] = {0x40, 0x00, 0x01, 0x00};
46 const __u8 nci_reset_ntf[] = {0x60, 0x00, 0x09, 0x02, 0x01, 0x20, 0x0e,
47 0x04, 0x61, 0x00, 0x04, 0x02};
48 const __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};
52 const __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};
57 const __u8 nci_rf_disc_map_rsp[] = {0x41, 0x00, 0x01, 0x00};
58 const __u8 nci_rf_disc_rsp[] = {0x41, 0x03, 0x01, 0x00};
59 const __u8 nci_rf_deact_rsp[] = {0x41, 0x06, 0x01, 0x00};
60 const __u8 nci_rf_deact_ntf[] = {0x61, 0x06, 0x02, 0x00, 0x00};
61 const __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};
66 const __u8 nci_t4t_select_cmd[] = {0x00, 0x00, 0x0C, 0x00, 0xA4, 0x04, 0x00,
67 0x07, 0xD2, 0x76, 0x00, 0x00, 0x85, 0x01, 0x01};
68 const __u8 nci_t4t_select_cmd2[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02,
69 0xE1, 0x03};
70 const __u8 nci_t4t_select_cmd3[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02,
71 0xE1, 0x04};
72 const __u8 nci_t4t_read_cmd[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x0F};
73 const __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};
76 const __u8 nci_t4t_read_cmd2[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x02};
77 const __u8 nci_t4t_read_rsp2[] = {0x00, 0x00, 0x04, 0x00, 0x0F, 0x90, 0x00};
78 const __u8 nci_t4t_read_cmd3[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x02, 0x0F};
79 const __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};
82 const __u8 nci_t4t_rsp_ok[] = {0x00, 0x00, 0x02, 0x90, 0x00};
83
84 struct msgtemplate {
85 struct nlmsghdr n;
86 struct genlmsghdr g;
87 char buf[MAX_MSG_SIZE];
88 };
89
90 static 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;
106 error:
107 close(fd);
108 return -1;
109 }
110
111 static 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
160 static 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
176 static 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
240 static 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
251 static 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;
274 error:
275 return rc;
276 }
277
278 static __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
298 FIXTURE(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
309 FIXTURE_VARIANT(NCI) {
310 bool isNCI2;
311 };
312
313 FIXTURE_VARIANT_ADD(NCI, NCI1_0) {
314 .isNCI2 = false,
315 };
316
317 FIXTURE_VARIANT_ADD(NCI, NCI2_0) {
318 .isNCI2 = true,
319 };
320
321 static 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;
357 error:
358 return (void *)-1;
359 }
360
361 static 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;
398 error:
399 return (void *)-1;
400 }
401
402 FIXTURE_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
452 static 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;
470 error:
471 return (void *)-1;
472 }
473
474 static 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;
493 error:
494 return (void *)-1;
495 }
496
497 FIXTURE_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
526 TEST_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
537 static 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;
555 error:
556 return (void *)-1;
557 }
558
559 static 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;
577 error:
578 return (void *)-1;
579 }
580
581 int 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
605 int 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
625 TEST_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
638 int 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
695 int 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
719 int 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
745 int 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
764 int 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
796 static 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
815 int 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
839 TEST_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
859 TEST_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
904 TEST_HARNESS_MAIN
905
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