forked from libimobiledevice/libusbmuxd
-
Notifications
You must be signed in to change notification settings - Fork 0
/
libusbmuxd.c
1803 lines (1595 loc) · 43.8 KB
/
libusbmuxd.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* libusbmuxd.c
*
* Copyright (C) 2009-2019 Nikias Bassen <[email protected]>
* Copyright (C) 2009-2014 Martin Szulecki <[email protected]>
* Copyright (C) 2009 Paul Sladen <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#ifdef WIN32
#define USBMUXD_API __declspec( dllexport )
#else
#ifdef HAVE_FVISIBILITY
#define USBMUXD_API __attribute__((visibility("default")))
#else
#define USBMUXD_API
#endif
#endif
#ifndef EPROTO
#define EPROTO 134
#endif
#ifndef EBADMSG
#define EBADMSG 104
#endif
#ifndef ECONNREFUSED
#define ECONNREFUSED 107
#endif
#include <unistd.h>
#include <signal.h>
#ifdef WIN32
#include <winsock2.h>
#include <windows.h>
#ifndef HAVE_SLEEP
#define sleep(x) Sleep(x*1000)
#endif
#else
#include <sys/socket.h>
#include <arpa/inet.h>
#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME) && !defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME_ERRNO_H)
extern char *program_invocation_short_name;
#endif
#ifdef __APPLE__
extern int _NSGetExecutablePath(char* buf, uint32_t* bufsize);
#include <sys/stat.h>
#endif
#endif
#ifdef HAVE_INOTIFY
#include <sys/inotify.h>
#include <sys/select.h>
#include <pthread.h>
#define EVENT_SIZE (sizeof (struct inotify_event))
#define EVENT_BUF_LEN (1024 * (EVENT_SIZE + 16))
#define USBMUXD_DIRNAME "/var/run"
#define USBMUXD_SOCKET_NAME "usbmuxd"
static int use_inotify = 1;
#endif /* HAVE_INOTIFY */
#ifndef HAVE_STPNCPY
static char* stpncpy(char *dst, const char *src, size_t len)
{
size_t n = strlen(src);
if (n > len)
n = len;
return strncpy(dst, src, len) + n;
}
#endif
#include <plist/plist.h>
#define PLIST_CLIENT_VERSION_STRING PACKAGE_STRING
#define PLIST_LIBUSBMUX_VERSION 3
static char *bundle_id = NULL;
static char *prog_name = NULL;
// usbmuxd public interface
#include "usbmuxd.h"
// usbmuxd protocol
#include "usbmuxd-proto.h"
// socket utility functions
#include <libimobiledevice-glue/socket.h>
// misc utility functions
#include <libimobiledevice-glue/collection.h>
// threads
#include <libimobiledevice-glue/thread.h>
static int libusbmuxd_debug = 0;
#ifndef PACKAGE
#define PACKAGE "libusbmuxd"
#endif
#define LIBUSBMUXD_DEBUG(level, format, ...) if (level <= libusbmuxd_debug) fprintf(stderr, ("[" PACKAGE "] " format), __VA_ARGS__); fflush(stderr);
#define LIBUSBMUXD_ERROR(format, ...) LIBUSBMUXD_DEBUG(0, format, __VA_ARGS__)
static struct collection devices;
static THREAD_T devmon = THREAD_T_NULL;
static int listenfd = -1;
static int running = 0;
static int cancelling = 0;
static volatile int use_tag = 0;
static volatile int proto_version = 1;
static volatile int try_list_devices = 1;
struct usbmuxd_subscription_context {
usbmuxd_event_cb_t callback;
void *user_data;
};
static struct usbmuxd_subscription_context *event_ctx = NULL;
static struct collection listeners;
thread_once_t listener_init_once = THREAD_ONCE_INIT;
mutex_t listener_mutex;
/**
* Finds a device info record by its handle.
* if the record is not found, NULL is returned.
*/
static usbmuxd_device_info_t *devices_find(uint32_t handle)
{
FOREACH(usbmuxd_device_info_t *dev, &devices) {
if (dev && dev->handle == handle) {
return dev;
}
} ENDFOREACH
return NULL;
}
/**
* Creates a socket connection to usbmuxd.
* For Mac/Linux it is a unix domain socket,
* for Windows it is a tcp socket.
*/
static int connect_usbmuxd_socket()
{
int res = -1;
char *usbmuxd_socket_addr = getenv("USBMUXD_SOCKET_ADDRESS");
if (usbmuxd_socket_addr) {
if (strncmp(usbmuxd_socket_addr, "UNIX:", 5) == 0) {
#if defined(WIN32) || defined(__CYGWIN__)
/* not supported, ignore */
#else
if (usbmuxd_socket_addr[5] != '\0') {
res = socket_connect_unix(usbmuxd_socket_addr+5);
if (res < 0) {
res = -errno;
}
return res;
}
#endif
} else {
uint16_t port = 0;
char *p = strrchr(usbmuxd_socket_addr, ':');
if (p) {
char *endp = NULL;
long l_port = strtol(p+1, &endp, 10);
if (endp && *endp == '\0') {
if (l_port > 0 && l_port < 65536) {
port = (uint16_t)l_port;
}
}
}
if (p && port > 0) {
char *connect_addr = NULL;
if (usbmuxd_socket_addr[0] == '[') {
connect_addr = strdup(usbmuxd_socket_addr+1);
connect_addr[p - usbmuxd_socket_addr - 1] = '\0';
p = strrchr(connect_addr, ']');
if (p) {
*p = '\0';
}
} else {
connect_addr = strdup(usbmuxd_socket_addr);
connect_addr[p - usbmuxd_socket_addr] = '\0';
}
if (connect_addr && *connect_addr != '\0') {
res = socket_connect(connect_addr, port);
#ifdef HAVE_INOTIFY
use_inotify = 0;
#endif
free(connect_addr);
if (res < 0) {
res = -errno;
}
return res;
}
free(connect_addr);
}
}
}
#if defined(WIN32) || defined(__CYGWIN__)
res = socket_connect("127.0.0.1", USBMUXD_SOCKET_PORT);
#else
res = socket_connect_unix(USBMUXD_SOCKET_FILE);
#endif
if (res < 0) {
res = -errno;
}
return res;
}
static void sanitize_udid(usbmuxd_device_info_t *devinfo)
{
if (!devinfo)
return;
if (strlen(devinfo->udid) == 24) {
memmove(&devinfo->udid[9], &devinfo->udid[8], 17);
devinfo->udid[8] = '-';
}
if (strcasecmp(devinfo->udid, "ffffffffffffffffffffffffffffffffffffffff") == 0) {
sprintf(devinfo->udid + 32, "%08x", devinfo->handle);
}
}
static usbmuxd_device_info_t *device_info_from_plist(plist_t props)
{
usbmuxd_device_info_t* devinfo = NULL;
plist_t n = NULL;
uint64_t val = 0;
char *strval = NULL;
devinfo = (usbmuxd_device_info_t*)malloc(sizeof(usbmuxd_device_info_t));
if (!devinfo)
return NULL;
memset(devinfo, 0, sizeof(usbmuxd_device_info_t));
n = plist_dict_get_item(props, "DeviceID");
if (n && plist_get_node_type(n) == PLIST_UINT) {
plist_get_uint_val(n, &val);
devinfo->handle = (uint32_t)val;
}
n = plist_dict_get_item(props, "ProductID");
if (n && plist_get_node_type(n) == PLIST_UINT) {
plist_get_uint_val(n, &val);
devinfo->product_id = (uint32_t)val;
}
n = plist_dict_get_item(props, "SerialNumber");
if (n && plist_get_node_type(n) == PLIST_STRING) {
plist_get_string_val(n, &strval);
if (strval) {
char *t = stpncpy(devinfo->udid, strval, sizeof(devinfo->udid)-1);
*t = '\0';
sanitize_udid(devinfo);
free(strval);
}
}
n = plist_dict_get_item(props, "ConnectionType");
if (n && plist_get_node_type(n) == PLIST_STRING) {
plist_get_string_val(n, &strval);
if (strval) {
if (strcmp(strval, "USB") == 0) {
devinfo->conn_type = CONNECTION_TYPE_USB;
} else if (strcmp(strval, "Network") == 0) {
devinfo->conn_type = CONNECTION_TYPE_NETWORK;
n = plist_dict_get_item(props, "NetworkAddress");
if (n && plist_get_node_type(n) == PLIST_DATA) {
uint64_t addr_len = 0;
const char *netaddr = plist_get_data_ptr(n, &addr_len);
if (netaddr && addr_len > 0 && addr_len < sizeof(devinfo->conn_data)) {
memcpy(devinfo->conn_data, netaddr, addr_len);
}
}
} else {
LIBUSBMUXD_ERROR("%s: Unexpected ConnectionType '%s'\n", __func__, strval);
}
free(strval);
}
}
if (!devinfo->udid[0]) {
LIBUSBMUXD_ERROR("%s: Failed to get SerialNumber (UDID)!\n", __func__);
free(devinfo);
return NULL;
}
if (!devinfo->conn_type) {
LIBUSBMUXD_ERROR("%s: Failed to get ConnectionType!\n", __func__);
free(devinfo);
devinfo = NULL;
} else if (devinfo->conn_type == CONNECTION_TYPE_NETWORK && !devinfo->conn_data[0]) {
LIBUSBMUXD_ERROR("%s: Failed to get EscapedFullServiceName!\n", __func__);
free(devinfo);
devinfo = NULL;
}
return devinfo;
}
static usbmuxd_device_info_t *device_info_from_device_record(struct usbmuxd_device_record *dev)
{
if (!dev) {
return NULL;
}
usbmuxd_device_info_t *devinfo = (usbmuxd_device_info_t*)malloc(sizeof(usbmuxd_device_info_t));
if (!devinfo) {
LIBUSBMUXD_ERROR("%s: Out of memory while allocating device info object\n", __func__);
return NULL;
}
devinfo->handle = dev->device_id;
devinfo->product_id = dev->product_id;
char *t = stpncpy(devinfo->udid, dev->serial_number, sizeof(devinfo->udid)-2);
*t = '\0';
sanitize_udid(devinfo);
return devinfo;
}
static int receive_packet(int sfd, struct usbmuxd_header *header, void **payload, int timeout)
{
int recv_len;
struct usbmuxd_header hdr;
char *payload_loc = NULL;
header->length = 0;
header->version = 0;
header->message = 0;
header->tag = 0;
recv_len = socket_receive_timeout(sfd, &hdr, sizeof(hdr), 0, timeout);
if (recv_len < 0) {
if (!cancelling) {
LIBUSBMUXD_DEBUG(1, "%s: Error receiving packet: %s\n", __func__, strerror(-recv_len));
}
return recv_len;
}
if ((size_t)recv_len < sizeof(hdr)) {
LIBUSBMUXD_DEBUG(1, "%s: Received packet is too small, got %d bytes!\n", __func__, recv_len);
return recv_len;
}
uint32_t payload_size = hdr.length - sizeof(hdr);
if (payload_size > 0) {
payload_loc = (char*)malloc(payload_size);
uint32_t rsize = 0;
do {
int res = socket_receive_timeout(sfd, payload_loc + rsize, payload_size - rsize, 0, 5000);
if (res < 0) {
break;
}
rsize += res;
} while (rsize < payload_size);
if (rsize != payload_size) {
LIBUSBMUXD_DEBUG(1, "%s: Error receiving payload of size %d (bytes received: %d)\n", __func__, payload_size, rsize);
free(payload_loc);
return -EBADMSG;
}
}
if (hdr.message == MESSAGE_PLIST) {
char *message = NULL;
plist_t plist = NULL;
plist_from_xml(payload_loc, payload_size, &plist);
free(payload_loc);
if (!plist) {
LIBUSBMUXD_DEBUG(1, "%s: Error getting plist from payload!\n", __func__);
return -EBADMSG;
}
plist_t node = plist_dict_get_item(plist, "MessageType");
if (!node || plist_get_node_type(node) != PLIST_STRING) {
*payload = plist;
hdr.length = sizeof(hdr);
memcpy(header, &hdr, sizeof(hdr));
return hdr.length;
}
plist_get_string_val(node, &message);
if (message) {
uint64_t val = 0;
if (strcmp(message, "Result") == 0) {
/* result message */
uint32_t dwval = 0;
plist_t n = plist_dict_get_item(plist, "Number");
plist_get_uint_val(n, &val);
*payload = malloc(sizeof(uint32_t));
dwval = val;
memcpy(*payload, &dwval, sizeof(dwval));
hdr.length = sizeof(hdr) + sizeof(dwval);
hdr.message = MESSAGE_RESULT;
} else if (strcmp(message, "Attached") == 0) {
/* device add message */
usbmuxd_device_info_t *devinfo = NULL;
plist_t props = plist_dict_get_item(plist, "Properties");
if (!props) {
LIBUSBMUXD_DEBUG(1, "%s: Could not get properties for message '%s' from plist!\n", __func__, message);
free(message);
plist_free(plist);
return -EBADMSG;
}
devinfo = device_info_from_plist(props);
if (!devinfo) {
LIBUSBMUXD_DEBUG(1, "%s: Could not create device info object from properties!\n", __func__);
free(message);
plist_free(plist);
return -EBADMSG;
}
*payload = (void*)devinfo;
hdr.length = sizeof(hdr) + sizeof(usbmuxd_device_info_t);
hdr.message = MESSAGE_DEVICE_ADD;
} else if (strcmp(message, "Detached") == 0) {
/* device remove message */
uint32_t dwval = 0;
plist_t n = plist_dict_get_item(plist, "DeviceID");
if (n) {
plist_get_uint_val(n, &val);
*payload = malloc(sizeof(uint32_t));
dwval = val;
memcpy(*payload, &dwval, sizeof(dwval));
hdr.length = sizeof(hdr) + sizeof(dwval);
hdr.message = MESSAGE_DEVICE_REMOVE;
}
} else if (strcmp(message, "Paired") == 0) {
/* device pair message */
uint32_t dwval = 0;
plist_t n = plist_dict_get_item(plist, "DeviceID");
if (n) {
plist_get_uint_val(n, &val);
*payload = malloc(sizeof(uint32_t));
dwval = val;
memcpy(*payload, &dwval, sizeof(dwval));
hdr.length = sizeof(hdr) + sizeof(dwval);
hdr.message = MESSAGE_DEVICE_PAIRED;
}
} else {
char *xml = NULL;
uint32_t len = 0;
plist_to_xml(plist, &xml, &len);
LIBUSBMUXD_DEBUG(1, "%s: Unexpected message '%s' in plist:\n%s\n", __func__, message, xml);
free(xml);
free(message);
plist_free(plist);
return -EBADMSG;
}
free(message);
}
plist_free(plist);
} else if (hdr.message == MESSAGE_DEVICE_ADD) {
usbmuxd_device_info_t *devinfo = device_info_from_device_record((struct usbmuxd_device_record*)payload_loc);
free(payload_loc);
*payload = devinfo;
} else {
*payload = payload_loc;
}
memcpy(header, &hdr, sizeof(hdr));
return hdr.length;
}
/**
* Retrieves the result code to a previously sent request.
*/
static int usbmuxd_get_result(int sfd, uint32_t tag, uint32_t *result, void **result_plist)
{
struct usbmuxd_header hdr;
int recv_len;
uint32_t *res = NULL;
if (!result) {
return -EINVAL;
}
*result = -1;
if (result_plist) {
*result_plist = NULL;
}
recv_len = receive_packet(sfd, &hdr, (void**)&res, 5000);
if (recv_len < 0 || (size_t)recv_len < sizeof(hdr)) {
free(res);
return (recv_len < 0 ? recv_len : -EPROTO);
}
if (hdr.message == MESSAGE_RESULT) {
int ret = 0;
if (hdr.tag != tag) {
LIBUSBMUXD_DEBUG(1, "%s: WARNING: tag mismatch (%d != %d). Proceeding anyway.\n", __func__, hdr.tag, tag);
}
if (res) {
memcpy(result, res, sizeof(uint32_t));
ret = 1;
}
free(res);
return ret;
}
if (hdr.message == MESSAGE_PLIST) {
if (!result_plist) {
LIBUSBMUXD_DEBUG(1, "%s: MESSAGE_PLIST result but result_plist pointer is NULL!\n", __func__);
return -1;
}
*result_plist = (plist_t)res;
*result = RESULT_OK;
return 1;
}
LIBUSBMUXD_DEBUG(1, "%s: Unexpected message of type %d received!\n", __func__, hdr.message);
free(res);
return -EPROTO;
}
static int send_packet(int sfd, uint32_t message, uint32_t tag, void *payload, uint32_t payload_size)
{
struct usbmuxd_header header;
header.length = sizeof(struct usbmuxd_header);
header.version = proto_version;
header.message = message;
header.tag = tag;
if (payload && (payload_size > 0)) {
header.length += payload_size;
}
int sent = socket_send(sfd, &header, sizeof(header));
if (sent != sizeof(header)) {
LIBUSBMUXD_DEBUG(1, "%s: ERROR: could not send packet header\n", __func__);
return -1;
}
if (payload && (payload_size > 0)) {
uint32_t ssize = 0;
do {
int res = socket_send(sfd, (char*)payload + ssize, payload_size - ssize);
if (res < 0) {
break;
}
ssize += res;
} while (ssize < payload_size);
sent += ssize;
}
if (sent != (int)header.length) {
LIBUSBMUXD_DEBUG(1, "%s: ERROR: could not send whole packet (sent %d of %d)\n", __func__, sent, header.length);
socket_close(sfd);
return -1;
}
return sent;
}
static int send_plist_packet(int sfd, uint32_t tag, plist_t message)
{
int res;
char *payload = NULL;
uint32_t payload_size = 0;
plist_to_xml(message, &payload, &payload_size);
res = send_packet(sfd, MESSAGE_PLIST, tag, payload, payload_size);
free(payload);
return res;
}
static void get_bundle_id()
{
#if defined (__APPLE__)
char CONTENTS_INFO_PLIST[] = "Contents/Info.plist";
char* execpath = malloc(1024);
uint32_t size = 1024;
if (_NSGetExecutablePath(execpath, &size) != 0) {
free(execpath);
return;
}
// strip off executable name
char *p = execpath + strlen(execpath) - 1;
while (p > execpath && *p != '/') p--;
if (*p == '/') *p = '\0';
// now walk back trying to find "/Contents/MacOS", and strip it off
int macos_found = 0;
while (p > execpath) {
p--;
if (*p != '/') continue;
if (strcmp(p, "/.") == 0) {
*p = '\0';
} else if (!macos_found && strcmp(p, "/MacOS") == 0) {
*p = '\0';
macos_found++;
} else if (macos_found && strcmp(p, "/Contents") == 0) {
*p = '\0';
break;
} else {
break;
}
}
// now just append "/Contents/Info.plist"
size_t len = strlen(execpath) + sizeof(CONTENTS_INFO_PLIST) + 1;
char *infopl = malloc(len);
snprintf(infopl, len, "%s/%s", execpath, CONTENTS_INFO_PLIST);
free(execpath);
struct stat fst;
fst.st_size = 0;
if (stat(infopl, &fst) != 0) {
free(infopl);
return;
}
size_t fsize = fst.st_size;
if (fsize < 8) {
free(infopl);
return;
}
FILE *f = fopen(infopl, "r");
free(infopl);
if (!f)
return;
char *buf = malloc(fsize);
if (!buf)
return;
if (fread(buf, 1, fsize, f) == fsize) {
plist_t pl = NULL;
if (memcmp(buf, "bplist00", 8) == 0) {
plist_from_bin(buf, fst.st_size, &pl);
} else {
plist_from_xml(buf, fst.st_size, &pl);
}
if (pl) {
plist_t bid = plist_dict_get_item(pl, "CFBundleIdentifier");
if (plist_get_node_type(bid) == PLIST_STRING) {
plist_get_string_val(bid, &bundle_id);
}
plist_free(pl);
}
}
free(buf);
fclose(f);
#endif
}
static void get_prog_name()
{
#if defined(__APPLE__) || defined(__FreeBSD__)
const char *pname = getprogname();
if (pname) {
prog_name = strdup(pname);
}
#elif defined (WIN32)
TCHAR *_pname = malloc((MAX_PATH+1) * sizeof(TCHAR));
if (GetModuleFileName(NULL, _pname, MAX_PATH+1) > 0) {
char* pname = NULL;
#if defined(UNICODE) || defined(_UNICODE)
char* __pname = NULL;
int l = WideCharToMultiByte(CP_UTF8, 0, _pname, -1, NULL, 0, NULL, NULL);
if (l > 0) {
__pname = malloc(l);
if (WideCharToMultiByte(CP_UTF8, 0, _pname, -1, __pname, l, NULL, NULL) > 0) {
pname = __pname;
}
}
#else
pname = _pname;
#endif
if (pname) {
char *p = pname+strlen(pname)-1;
while (p > pname && *p != '\\' && *p != '/') p--;
if (*p == '\\' || *p == '/') p++;
prog_name = strdup(p);
}
#if defined(UNICODE) || defined(_UNICODE)
free(__pname);
#endif
}
free(_pname);
#elif defined (HAVE_PROGRAM_INVOCATION_SHORT_NAME)
char *pname = program_invocation_short_name;
if (pname) {
prog_name = strdup(pname);
}
#elif defined (__linux__)
FILE *f = fopen("/proc/self/stat", "r");
if (!f) {
return;
}
char *tmpbuf = malloc(512);
size_t r = fread(tmpbuf, 1, 512, f);
if (r > 0) {
char *p = tmpbuf;
while (((size_t)(p-tmpbuf) < r) && (*p != '(') && (*p != '\0')) p++;
if (*p == '(') {
p++;
char *pname = p;
while (((size_t)(p-tmpbuf) < r) && (*p != ')') && (*p != '\0')) p++;
if (*p == ')') {
*p = '\0';
prog_name = strdup(pname);
}
}
}
free(tmpbuf);
fclose(f);
#else
#warning FIXME: no method to determine program name
#endif
}
static plist_t create_plist_message(const char* message_type)
{
if (!bundle_id) {
get_bundle_id();
}
if (!prog_name) {
get_prog_name();
}
plist_t plist = plist_new_dict();
if (bundle_id) {
plist_dict_set_item(plist, "BundleID", plist_new_string(bundle_id));
}
plist_dict_set_item(plist, "ClientVersionString", plist_new_string(PLIST_CLIENT_VERSION_STRING));
plist_dict_set_item(plist, "MessageType", plist_new_string(message_type));
if (prog_name) {
plist_dict_set_item(plist, "ProgName", plist_new_string(prog_name));
}
plist_dict_set_item(plist, "kLibUSBMuxVersion", plist_new_uint(PLIST_LIBUSBMUX_VERSION));
return plist;
}
static int send_listen_packet(int sfd, uint32_t tag)
{
int res = 0;
if (proto_version == 1) {
/* construct message plist */
plist_t plist = create_plist_message("Listen");
res = send_plist_packet(sfd, tag, plist);
plist_free(plist);
} else {
/* binary packet */
res = send_packet(sfd, MESSAGE_LISTEN, tag, NULL, 0);
}
return res;
}
static int send_connect_packet(int sfd, uint32_t tag, uint32_t device_id, uint16_t port)
{
int res = 0;
if (proto_version == 1) {
/* construct message plist */
plist_t plist = create_plist_message("Connect");
plist_dict_set_item(plist, "DeviceID", plist_new_uint(device_id));
plist_dict_set_item(plist, "PortNumber", plist_new_uint(htons(port)));
res = send_plist_packet(sfd, tag, plist);
plist_free(plist);
} else {
/* binary packet */
struct {
uint32_t device_id;
uint16_t port;
uint16_t reserved;
} conninfo;
conninfo.device_id = device_id;
conninfo.port = htons(port);
conninfo.reserved = 0;
res = send_packet(sfd, MESSAGE_CONNECT, tag, &conninfo, sizeof(conninfo));
}
return res;
}
static int send_list_devices_packet(int sfd, uint32_t tag)
{
int res = -1;
/* construct message plist */
plist_t plist = create_plist_message("ListDevices");
res = send_plist_packet(sfd, tag, plist);
plist_free(plist);
return res;
}
static int send_read_buid_packet(int sfd, uint32_t tag)
{
int res = -1;
/* construct message plist */
plist_t plist = create_plist_message("ReadBUID");
res = send_plist_packet(sfd, tag, plist);
plist_free(plist);
return res;
}
static int send_pair_record_packet(int sfd, uint32_t tag, const char* msgtype, const char* pair_record_id, uint32_t device_id, plist_t data)
{
int res = -1;
/* construct message plist */
plist_t plist = create_plist_message(msgtype);
plist_dict_set_item(plist, "PairRecordID", plist_new_string(pair_record_id));
if (data) {
plist_dict_set_item(plist, "PairRecordData", plist_copy(data));
}
if (device_id > 0) {
plist_dict_set_item(plist, "DeviceID", plist_new_uint(device_id));
}
res = send_plist_packet(sfd, tag, plist);
plist_free(plist);
return res;
}
/**
* Generates an event, i.e. calls the callback function.
* A reference to a populated usbmuxd_event_t with information about the event
* and the corresponding device will be passed to the callback function.
*/
static void generate_event(const usbmuxd_device_info_t *dev, enum usbmuxd_event_type event)
{
usbmuxd_event_t ev;
if (!dev) {
return;
}
ev.event = event;
memcpy(&ev.device, dev, sizeof(usbmuxd_device_info_t));
mutex_lock(&listener_mutex);
FOREACH(struct usbmuxd_subscription_context* context, &listeners) {
context->callback(&ev, context->user_data);
} ENDFOREACH
mutex_unlock(&listener_mutex);
}
static int usbmuxd_listen_poll()
{
int sfd;
sfd = connect_usbmuxd_socket();
if (sfd < 0) {
while (1) {
mutex_lock(&listener_mutex);
int num = collection_count(&listeners);
mutex_unlock(&listener_mutex);
if (num <= 0) {
break;
}
if ((sfd = connect_usbmuxd_socket()) >= 0) {
break;
}
sleep(1);
}
}
return sfd;
}
#ifdef HAVE_INOTIFY
#ifndef HAVE_PSELECT
static int pselect(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, const struct timespec *timeout, const sigset_t *sigmask)
{
int ready;
struct timeval tv;
struct timeval *p_timeout;
sigset_t origmask;
if (timeout) {
tv.tv_sec = timeout->tv_sec;
tv.tv_usec = timeout->tv_nsec / 1000;
p_timeout = &tv;
} else {
p_timeout = NULL;
}
pthread_sigmask(SIG_SETMASK, sigmask, &origmask);
ready = select(nfds, readfds, writefds, exceptfds, p_timeout);
pthread_sigmask(SIG_SETMASK, &origmask, NULL);
return ready;
}
#endif
static int usbmuxd_listen_inotify()
{
int inot_fd;
int watch_d;
int sfd;
if (!use_inotify) {
return -2;
}
sfd = connect_usbmuxd_socket();
if (sfd >= 0)
return sfd;
sfd = -1;
inot_fd = inotify_init ();
if (inot_fd < 0) {
LIBUSBMUXD_DEBUG(1, "%s: Failed to setup inotify\n", __func__);
return -2;
}
/* inotify is setup, listen for events that concern us */
watch_d = inotify_add_watch (inot_fd, USBMUXD_DIRNAME, IN_CREATE);
if (watch_d < 0) {
LIBUSBMUXD_DEBUG(1, "%s: Failed to setup watch descriptor for socket dir\n", __func__);
close (inot_fd);
return -2;
}
while (1) {
fd_set rfds;
struct timespec tv = {1, 0};
FD_ZERO(&rfds);
FD_SET(inot_fd, &rfds);
int r = pselect(inot_fd+1, &rfds, NULL, NULL, &tv, NULL);
if (r < 0) {
break;
}
if (r == 0) {
continue;
}
ssize_t len, i;
char buff[EVENT_BUF_LEN] = {0};
i = 0;
len = read (inot_fd, buff, EVENT_BUF_LEN -1);
if (len < 0)
goto end;
while (i < len) {
struct inotify_event *pevent = (struct inotify_event *) & buff[i];
/* check that it's ours */
if (pevent->mask & IN_CREATE &&
pevent->len &&
pevent->name[0] != 0 &&
strcmp(pevent->name, USBMUXD_SOCKET_NAME) == 0) {
/* retry if usbmuxd isn't ready yet */
int retry = 10;
while (--retry >= 0) {
if ((sfd = connect_usbmuxd_socket ()) >= 0) {
break;
}
sleep(1);
}
goto end;
}
i += EVENT_SIZE + pevent->len;
}
}
end:
inotify_rm_watch(inot_fd, watch_d);
close(inot_fd);
return sfd;
}
#endif /* HAVE_INOTIFY */
/**
* Tries to connect to usbmuxd and wait if it is not running.
*/
static int usbmuxd_listen()
{
int sfd;
uint32_t res = -1;
int tag;
retry:
#ifdef HAVE_INOTIFY
sfd = usbmuxd_listen_inotify();
if (sfd == -2)
sfd = usbmuxd_listen_poll();
#else
sfd = usbmuxd_listen_poll();
#endif