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12#include "qemu/osdep.h"
13#include "qemu-common.h"
14#include "qapi/error.h"
15#include "qemu/error-report.h"
16#include <wchar.h>
17#include <dirent.h>
18
19#include <sys/statvfs.h>
20
21
22#include "qemu/iov.h"
23#include "qemu/module.h"
24#include "qemu/filemonitor.h"
25#include "trace.h"
26#include "hw/usb.h"
27#include "desc.h"
28#include "qemu/units.h"
29
30
31
32enum mtp_container_type {
33 TYPE_COMMAND = 1,
34 TYPE_DATA = 2,
35 TYPE_RESPONSE = 3,
36 TYPE_EVENT = 4,
37};
38
39
40enum mtp_write_status {
41 WRITE_START = 1,
42 WRITE_CONTINUE = 2,
43 WRITE_END = 3,
44};
45
46enum mtp_code {
47
48 CMD_GET_DEVICE_INFO = 0x1001,
49 CMD_OPEN_SESSION = 0x1002,
50 CMD_CLOSE_SESSION = 0x1003,
51 CMD_GET_STORAGE_IDS = 0x1004,
52 CMD_GET_STORAGE_INFO = 0x1005,
53 CMD_GET_NUM_OBJECTS = 0x1006,
54 CMD_GET_OBJECT_HANDLES = 0x1007,
55 CMD_GET_OBJECT_INFO = 0x1008,
56 CMD_GET_OBJECT = 0x1009,
57 CMD_DELETE_OBJECT = 0x100b,
58 CMD_SEND_OBJECT_INFO = 0x100c,
59 CMD_SEND_OBJECT = 0x100d,
60 CMD_GET_PARTIAL_OBJECT = 0x101b,
61 CMD_GET_OBJECT_PROPS_SUPPORTED = 0x9801,
62 CMD_GET_OBJECT_PROP_DESC = 0x9802,
63 CMD_GET_OBJECT_PROP_VALUE = 0x9803,
64
65
66 RES_OK = 0x2001,
67 RES_GENERAL_ERROR = 0x2002,
68 RES_SESSION_NOT_OPEN = 0x2003,
69 RES_INVALID_TRANSACTION_ID = 0x2004,
70 RES_OPERATION_NOT_SUPPORTED = 0x2005,
71 RES_PARAMETER_NOT_SUPPORTED = 0x2006,
72 RES_INCOMPLETE_TRANSFER = 0x2007,
73 RES_INVALID_STORAGE_ID = 0x2008,
74 RES_INVALID_OBJECT_HANDLE = 0x2009,
75 RES_INVALID_OBJECT_FORMAT_CODE = 0x200b,
76 RES_STORE_FULL = 0x200c,
77 RES_STORE_READ_ONLY = 0x200e,
78 RES_PARTIAL_DELETE = 0x2012,
79 RES_STORE_NOT_AVAILABLE = 0x2013,
80 RES_SPEC_BY_FORMAT_UNSUPPORTED = 0x2014,
81 RES_INVALID_OBJECTINFO = 0x2015,
82 RES_DESTINATION_UNSUPPORTED = 0x2020,
83 RES_INVALID_PARENT_OBJECT = 0x201a,
84 RES_INVALID_PARAMETER = 0x201d,
85 RES_SESSION_ALREADY_OPEN = 0x201e,
86 RES_INVALID_OBJECT_PROP_CODE = 0xA801,
87
88
89 FMT_UNDEFINED_OBJECT = 0x3000,
90 FMT_ASSOCIATION = 0x3001,
91
92
93 EVT_CANCEL_TRANSACTION = 0x4001,
94 EVT_OBJ_ADDED = 0x4002,
95 EVT_OBJ_REMOVED = 0x4003,
96 EVT_OBJ_INFO_CHANGED = 0x4007,
97
98
99 PROP_STORAGE_ID = 0xDC01,
100 PROP_OBJECT_FORMAT = 0xDC02,
101 PROP_OBJECT_COMPRESSED_SIZE = 0xDC04,
102 PROP_PARENT_OBJECT = 0xDC0B,
103 PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER = 0xDC41,
104 PROP_NAME = 0xDC44,
105};
106
107enum mtp_data_type {
108 DATA_TYPE_UINT16 = 0x0004,
109 DATA_TYPE_UINT32 = 0x0006,
110 DATA_TYPE_UINT64 = 0x0008,
111 DATA_TYPE_UINT128 = 0x000a,
112 DATA_TYPE_STRING = 0xffff,
113};
114
115typedef struct {
116 uint32_t length;
117 uint16_t type;
118 uint16_t code;
119 uint32_t trans;
120} QEMU_PACKED mtp_container;
121
122
123
124typedef struct MTPState MTPState;
125typedef struct MTPControl MTPControl;
126typedef struct MTPData MTPData;
127typedef struct MTPObject MTPObject;
128
129enum {
130 EP_DATA_IN = 1,
131 EP_DATA_OUT,
132 EP_EVENT,
133};
134
135typedef struct MTPMonEntry MTPMonEntry;
136
137struct MTPMonEntry {
138 uint32_t event;
139 uint32_t handle;
140
141 QTAILQ_ENTRY(MTPMonEntry) next;
142};
143
144struct MTPControl {
145 uint16_t code;
146 uint32_t trans;
147 int argc;
148 uint32_t argv[5];
149};
150
151struct MTPData {
152 uint16_t code;
153 uint32_t trans;
154 uint64_t offset;
155 uint64_t length;
156 uint64_t alloc;
157 uint8_t *data;
158 bool first;
159
160 bool pending;
161 int fd;
162 uint8_t write_status;
163
164 uint64_t data_offset;
165};
166
167struct MTPObject {
168 uint32_t handle;
169 uint16_t format;
170 char *name;
171 char *path;
172 struct stat stat;
173
174 int64_t watchid;
175 MTPObject *parent;
176 uint32_t nchildren;
177 QLIST_HEAD(, MTPObject) children;
178 QLIST_ENTRY(MTPObject) list;
179 bool have_children;
180 QTAILQ_ENTRY(MTPObject) next;
181};
182
183struct MTPState {
184 USBDevice dev;
185 char *root;
186 char *desc;
187 uint32_t flags;
188
189 MTPData *data_in;
190 MTPData *data_out;
191 MTPControl *result;
192 uint32_t session;
193 uint32_t next_handle;
194 bool readonly;
195
196 QTAILQ_HEAD(, MTPObject) objects;
197 QFileMonitor *file_monitor;
198 QTAILQ_HEAD(, MTPMonEntry) events;
199
200 bool write_pending;
201 struct {
202 uint32_t parent_handle;
203 uint16_t format;
204 uint32_t size;
205 char *filename;
206 } dataset;
207};
208
209
210
211
212
213typedef struct {
214 uint32_t storage_id;
215 uint16_t format;
216 uint16_t protection_status;
217 uint32_t size;
218 uint16_t thumb_format;
219 uint32_t thumb_comp_sz;
220 uint32_t thumb_pix_width;
221 uint32_t thumb_pix_height;
222 uint32_t image_pix_width;
223 uint32_t image_pix_height;
224 uint32_t image_bit_depth;
225 uint32_t parent;
226 uint16_t assoc_type;
227 uint32_t assoc_desc;
228 uint32_t seq_no;
229 uint8_t length;
230 uint8_t filename[0];
231 char date_created[0];
232 char date_modified[0];
233 char keywords[0];
234
235} QEMU_PACKED ObjectInfo;
236
237#define TYPE_USB_MTP "usb-mtp"
238#define USB_MTP(obj) OBJECT_CHECK(MTPState, (obj), TYPE_USB_MTP)
239
240#define QEMU_STORAGE_ID 0x00010001
241
242#define MTP_FLAG_WRITABLE 0
243
244#define FLAG_SET(_mtp, _flag) ((_mtp)->flags & (1 << (_flag)))
245
246
247
248#define MTP_MANUFACTURER "QEMU"
249#define MTP_PRODUCT "QEMU filesharing"
250#define MTP_WRITE_BUF_SZ (512 * KiB)
251
252enum {
253 STR_MANUFACTURER = 1,
254 STR_PRODUCT,
255 STR_SERIALNUMBER,
256 STR_MTP,
257 STR_CONFIG_FULL,
258 STR_CONFIG_HIGH,
259 STR_CONFIG_SUPER,
260};
261
262static const USBDescStrings desc_strings = {
263 [STR_MANUFACTURER] = MTP_MANUFACTURER,
264 [STR_PRODUCT] = MTP_PRODUCT,
265 [STR_SERIALNUMBER] = "34617",
266 [STR_MTP] = "MTP",
267 [STR_CONFIG_FULL] = "Full speed config (usb 1.1)",
268 [STR_CONFIG_HIGH] = "High speed config (usb 2.0)",
269 [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)",
270};
271
272static const USBDescIface desc_iface_full = {
273 .bInterfaceNumber = 0,
274 .bNumEndpoints = 3,
275 .bInterfaceClass = USB_CLASS_STILL_IMAGE,
276 .bInterfaceSubClass = 0x01,
277 .bInterfaceProtocol = 0x01,
278 .iInterface = STR_MTP,
279 .eps = (USBDescEndpoint[]) {
280 {
281 .bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
282 .bmAttributes = USB_ENDPOINT_XFER_BULK,
283 .wMaxPacketSize = 64,
284 },{
285 .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
286 .bmAttributes = USB_ENDPOINT_XFER_BULK,
287 .wMaxPacketSize = 64,
288 },{
289 .bEndpointAddress = USB_DIR_IN | EP_EVENT,
290 .bmAttributes = USB_ENDPOINT_XFER_INT,
291 .wMaxPacketSize = 64,
292 .bInterval = 0x0a,
293 },
294 }
295};
296
297static const USBDescDevice desc_device_full = {
298 .bcdUSB = 0x0200,
299 .bMaxPacketSize0 = 8,
300 .bNumConfigurations = 1,
301 .confs = (USBDescConfig[]) {
302 {
303 .bNumInterfaces = 1,
304 .bConfigurationValue = 1,
305 .iConfiguration = STR_CONFIG_FULL,
306 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
307 .bMaxPower = 2,
308 .nif = 1,
309 .ifs = &desc_iface_full,
310 },
311 },
312};
313
314static const USBDescIface desc_iface_high = {
315 .bInterfaceNumber = 0,
316 .bNumEndpoints = 3,
317 .bInterfaceClass = USB_CLASS_STILL_IMAGE,
318 .bInterfaceSubClass = 0x01,
319 .bInterfaceProtocol = 0x01,
320 .iInterface = STR_MTP,
321 .eps = (USBDescEndpoint[]) {
322 {
323 .bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
324 .bmAttributes = USB_ENDPOINT_XFER_BULK,
325 .wMaxPacketSize = 512,
326 },{
327 .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
328 .bmAttributes = USB_ENDPOINT_XFER_BULK,
329 .wMaxPacketSize = 512,
330 },{
331 .bEndpointAddress = USB_DIR_IN | EP_EVENT,
332 .bmAttributes = USB_ENDPOINT_XFER_INT,
333 .wMaxPacketSize = 64,
334 .bInterval = 0x0a,
335 },
336 }
337};
338
339static const USBDescDevice desc_device_high = {
340 .bcdUSB = 0x0200,
341 .bMaxPacketSize0 = 64,
342 .bNumConfigurations = 1,
343 .confs = (USBDescConfig[]) {
344 {
345 .bNumInterfaces = 1,
346 .bConfigurationValue = 1,
347 .iConfiguration = STR_CONFIG_HIGH,
348 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
349 .bMaxPower = 2,
350 .nif = 1,
351 .ifs = &desc_iface_high,
352 },
353 },
354};
355
356static const USBDescMSOS desc_msos = {
357 .CompatibleID = "MTP",
358 .SelectiveSuspendEnabled = true,
359};
360
361static const USBDesc desc = {
362 .id = {
363 .idVendor = 0x46f4,
364 .idProduct = 0x0004,
365 .bcdDevice = 0,
366 .iManufacturer = STR_MANUFACTURER,
367 .iProduct = STR_PRODUCT,
368 .iSerialNumber = STR_SERIALNUMBER,
369 },
370 .full = &desc_device_full,
371 .high = &desc_device_high,
372 .str = desc_strings,
373 .msos = &desc_msos,
374};
375
376
377
378static MTPObject *usb_mtp_object_alloc(MTPState *s, uint32_t handle,
379 MTPObject *parent, const char *name)
380{
381 MTPObject *o = g_new0(MTPObject, 1);
382
383 if (name[0] == '.') {
384 goto ignore;
385 }
386
387 o->watchid = -1;
388 o->handle = handle;
389 o->parent = parent;
390 o->name = g_strdup(name);
391 if (parent == NULL) {
392 o->path = g_strdup(name);
393 } else {
394 o->path = g_strdup_printf("%s/%s", parent->path, name);
395 }
396
397 if (lstat(o->path, &o->stat) != 0) {
398 goto ignore;
399 }
400 if (S_ISREG(o->stat.st_mode)) {
401 o->format = FMT_UNDEFINED_OBJECT;
402 } else if (S_ISDIR(o->stat.st_mode)) {
403 o->format = FMT_ASSOCIATION;
404 } else {
405 goto ignore;
406 }
407
408 if (access(o->path, R_OK) != 0) {
409 goto ignore;
410 }
411
412 trace_usb_mtp_object_alloc(s->dev.addr, o->handle, o->path);
413
414 QTAILQ_INSERT_TAIL(&s->objects, o, next);
415 return o;
416
417ignore:
418 g_free(o->name);
419 g_free(o->path);
420 g_free(o);
421 return NULL;
422}
423
424static void usb_mtp_object_free(MTPState *s, MTPObject *o)
425{
426 MTPObject *iter;
427
428 if (!o) {
429 return;
430 }
431
432 trace_usb_mtp_object_free(s->dev.addr, o->handle, o->path);
433
434 if (o->watchid != -1 && s->file_monitor) {
435 qemu_file_monitor_remove_watch(s->file_monitor, o->path, o->watchid);
436 }
437
438 QTAILQ_REMOVE(&s->objects, o, next);
439 if (o->parent) {
440 QLIST_REMOVE(o, list);
441 o->parent->nchildren--;
442 }
443
444 while (!QLIST_EMPTY(&o->children)) {
445 iter = QLIST_FIRST(&o->children);
446 usb_mtp_object_free(s, iter);
447 }
448 g_free(o->name);
449 g_free(o->path);
450 g_free(o);
451}
452
453static MTPObject *usb_mtp_object_lookup(MTPState *s, uint32_t handle)
454{
455 MTPObject *o;
456
457 QTAILQ_FOREACH(o, &s->objects, next) {
458 if (o->handle == handle) {
459 return o;
460 }
461 }
462 return NULL;
463}
464
465static MTPObject *usb_mtp_add_child(MTPState *s, MTPObject *o,
466 const char *name)
467{
468 MTPObject *child =
469 usb_mtp_object_alloc(s, s->next_handle++, o, name);
470
471 if (child) {
472 trace_usb_mtp_add_child(s->dev.addr, child->handle, child->path);
473 QLIST_INSERT_HEAD(&o->children, child, list);
474 o->nchildren++;
475
476 if (child->format == FMT_ASSOCIATION) {
477 QLIST_INIT(&child->children);
478 }
479 }
480
481 return child;
482}
483
484static MTPObject *usb_mtp_object_lookup_name(MTPObject *parent,
485 const char *name, int len)
486{
487 MTPObject *iter;
488
489 if (len == -1) {
490 len = strlen(name);
491 }
492
493 QLIST_FOREACH(iter, &parent->children, list) {
494 if (strncmp(iter->name, name, len) == 0) {
495 return iter;
496 }
497 }
498
499 return NULL;
500}
501
502static MTPObject *usb_mtp_object_lookup_id(MTPState *s, int64_t id)
503{
504 MTPObject *iter;
505
506 QTAILQ_FOREACH(iter, &s->objects, next) {
507 if (iter->watchid == id) {
508 return iter;
509 }
510 }
511
512 return NULL;
513}
514
515static void file_monitor_event(int64_t id,
516 QFileMonitorEvent ev,
517 const char *name,
518 void *opaque)
519{
520 MTPState *s = opaque;
521 MTPObject *parent = usb_mtp_object_lookup_id(s, id);
522 MTPMonEntry *entry = NULL;
523 MTPObject *o;
524
525 if (!parent) {
526 return;
527 }
528
529 switch (ev) {
530 case QFILE_MONITOR_EVENT_CREATED:
531 if (usb_mtp_object_lookup_name(parent, name, -1)) {
532
533 return;
534 }
535 entry = g_new0(MTPMonEntry, 1);
536 entry->handle = s->next_handle;
537 entry->event = EVT_OBJ_ADDED;
538 o = usb_mtp_add_child(s, parent, name);
539 if (!o) {
540 g_free(entry);
541 return;
542 }
543 trace_usb_mtp_file_monitor_event(s->dev.addr, name, "Obj Added");
544 break;
545
546 case QFILE_MONITOR_EVENT_DELETED:
547
548
549
550
551
552
553 o = usb_mtp_object_lookup_name(parent, name, -1);
554 if (!o) {
555 return;
556 }
557 entry = g_new0(MTPMonEntry, 1);
558 entry->handle = o->handle;
559 entry->event = EVT_OBJ_REMOVED;
560 trace_usb_mtp_file_monitor_event(s->dev.addr, o->path, "Obj Deleted");
561 usb_mtp_object_free(s, o);
562 break;
563
564 case QFILE_MONITOR_EVENT_MODIFIED:
565 o = usb_mtp_object_lookup_name(parent, name, -1);
566 if (!o) {
567 return;
568 }
569 entry = g_new0(MTPMonEntry, 1);
570 entry->handle = o->handle;
571 entry->event = EVT_OBJ_INFO_CHANGED;
572 trace_usb_mtp_file_monitor_event(s->dev.addr, o->path, "Obj Modified");
573 break;
574
575 case QFILE_MONITOR_EVENT_IGNORED:
576 trace_usb_mtp_file_monitor_event(s->dev.addr, parent->path,
577 "Obj parent dir ignored");
578 break;
579
580 case QFILE_MONITOR_EVENT_ATTRIBUTES:
581 break;
582
583 default:
584 g_assert_not_reached();
585 }
586
587 if (entry) {
588 QTAILQ_INSERT_HEAD(&s->events, entry, next);
589 }
590}
591
592static void usb_mtp_file_monitor_cleanup(MTPState *s)
593{
594 MTPMonEntry *e, *p;
595
596 QTAILQ_FOREACH_SAFE(e, &s->events, next, p) {
597 QTAILQ_REMOVE(&s->events, e, next);
598 g_free(e);
599 }
600
601 qemu_file_monitor_free(s->file_monitor);
602 s->file_monitor = NULL;
603}
604
605
606static void usb_mtp_object_readdir(MTPState *s, MTPObject *o)
607{
608 struct dirent *entry;
609 DIR *dir;
610 int fd;
611 Error *err = NULL;
612
613 if (o->have_children) {
614 return;
615 }
616 o->have_children = true;
617
618 fd = open(o->path, O_DIRECTORY | O_CLOEXEC | O_NOFOLLOW);
619 if (fd < 0) {
620 return;
621 }
622 dir = fdopendir(fd);
623 if (!dir) {
624 close(fd);
625 return;
626 }
627
628 if (s->file_monitor) {
629 int64_t id = qemu_file_monitor_add_watch(s->file_monitor, o->path, NULL,
630 file_monitor_event, s, &err);
631 if (id == -1) {
632 error_report("usb-mtp: failed to add watch for %s: %s", o->path,
633 error_get_pretty(err));
634 error_free(err);
635 } else {
636 trace_usb_mtp_file_monitor_event(s->dev.addr, o->path,
637 "Watch Added");
638 o->watchid = id;
639 }
640 }
641
642 while ((entry = readdir(dir)) != NULL) {
643 usb_mtp_add_child(s, o, entry->d_name);
644 }
645 closedir(dir);
646}
647
648
649
650static MTPData *usb_mtp_data_alloc(MTPControl *c)
651{
652 MTPData *data = g_new0(MTPData, 1);
653
654 data->code = c->code;
655 data->trans = c->trans;
656 data->fd = -1;
657 data->first = true;
658 return data;
659}
660
661static void usb_mtp_data_free(MTPData *data)
662{
663 if (data == NULL) {
664 return;
665 }
666 if (data->fd != -1) {
667 close(data->fd);
668 }
669 g_free(data->data);
670 g_free(data);
671}
672
673static void usb_mtp_realloc(MTPData *data, uint32_t bytes)
674{
675 if (data->length + bytes <= data->alloc) {
676 return;
677 }
678 data->alloc = (data->length + bytes + 0xff) & ~0xff;
679 data->data = g_realloc(data->data, data->alloc);
680}
681
682static void usb_mtp_add_u8(MTPData *data, uint8_t val)
683{
684 usb_mtp_realloc(data, 1);
685 data->data[data->length++] = val;
686}
687
688static void usb_mtp_add_u16(MTPData *data, uint16_t val)
689{
690 usb_mtp_realloc(data, 2);
691 data->data[data->length++] = (val >> 0) & 0xff;
692 data->data[data->length++] = (val >> 8) & 0xff;
693}
694
695static void usb_mtp_add_u32(MTPData *data, uint32_t val)
696{
697 usb_mtp_realloc(data, 4);
698 data->data[data->length++] = (val >> 0) & 0xff;
699 data->data[data->length++] = (val >> 8) & 0xff;
700 data->data[data->length++] = (val >> 16) & 0xff;
701 data->data[data->length++] = (val >> 24) & 0xff;
702}
703
704static void usb_mtp_add_u64(MTPData *data, uint64_t val)
705{
706 usb_mtp_realloc(data, 8);
707 data->data[data->length++] = (val >> 0) & 0xff;
708 data->data[data->length++] = (val >> 8) & 0xff;
709 data->data[data->length++] = (val >> 16) & 0xff;
710 data->data[data->length++] = (val >> 24) & 0xff;
711 data->data[data->length++] = (val >> 32) & 0xff;
712 data->data[data->length++] = (val >> 40) & 0xff;
713 data->data[data->length++] = (val >> 48) & 0xff;
714 data->data[data->length++] = (val >> 56) & 0xff;
715}
716
717static void usb_mtp_add_u16_array(MTPData *data, uint32_t len,
718 const uint16_t *vals)
719{
720 int i;
721
722 usb_mtp_add_u32(data, len);
723 for (i = 0; i < len; i++) {
724 usb_mtp_add_u16(data, vals[i]);
725 }
726}
727
728static void usb_mtp_add_u32_array(MTPData *data, uint32_t len,
729 const uint32_t *vals)
730{
731 int i;
732
733 usb_mtp_add_u32(data, len);
734 for (i = 0; i < len; i++) {
735 usb_mtp_add_u32(data, vals[i]);
736 }
737}
738
739static void usb_mtp_add_wstr(MTPData *data, const wchar_t *str)
740{
741 uint32_t len = wcslen(str);
742 int i;
743
744 if (len > 0) {
745 len++;
746 }
747
748 usb_mtp_add_u8(data, len);
749 for (i = 0; i < len; i++) {
750 usb_mtp_add_u16(data, str[i]);
751 }
752}
753
754static void usb_mtp_add_str(MTPData *data, const char *str)
755{
756 uint32_t len = strlen(str)+1;
757 wchar_t *wstr = g_new(wchar_t, len);
758 size_t ret;
759
760 ret = mbstowcs(wstr, str, len);
761 if (ret == -1) {
762 usb_mtp_add_wstr(data, L"Oops");
763 } else {
764 usb_mtp_add_wstr(data, wstr);
765 }
766
767 g_free(wstr);
768}
769
770static void usb_mtp_add_time(MTPData *data, time_t time)
771{
772 char buf[16];
773 struct tm tm;
774
775 gmtime_r(&time, &tm);
776 strftime(buf, sizeof(buf), "%Y%m%dT%H%M%S", &tm);
777 usb_mtp_add_str(data, buf);
778}
779
780
781
782static void usb_mtp_queue_result(MTPState *s, uint16_t code, uint32_t trans,
783 int argc, uint32_t arg0, uint32_t arg1,
784 uint32_t arg2)
785{
786 MTPControl *c = g_new0(MTPControl, 1);
787
788 c->code = code;
789 c->trans = trans;
790 c->argc = argc;
791 if (argc > 0) {
792 c->argv[0] = arg0;
793 }
794 if (argc > 1) {
795 c->argv[1] = arg1;
796 }
797 if (argc > 2) {
798 c->argv[2] = arg2;
799 }
800
801 assert(s->result == NULL);
802 s->result = c;
803}
804
805
806
807static MTPData *usb_mtp_get_device_info(MTPState *s, MTPControl *c)
808{
809 static const uint16_t ops[] = {
810 CMD_GET_DEVICE_INFO,
811 CMD_OPEN_SESSION,
812 CMD_CLOSE_SESSION,
813 CMD_GET_STORAGE_IDS,
814 CMD_GET_STORAGE_INFO,
815 CMD_GET_NUM_OBJECTS,
816 CMD_GET_OBJECT_HANDLES,
817 CMD_GET_OBJECT_INFO,
818 CMD_DELETE_OBJECT,
819 CMD_SEND_OBJECT_INFO,
820 CMD_SEND_OBJECT,
821 CMD_GET_OBJECT,
822 CMD_GET_PARTIAL_OBJECT,
823 CMD_GET_OBJECT_PROPS_SUPPORTED,
824 CMD_GET_OBJECT_PROP_DESC,
825 CMD_GET_OBJECT_PROP_VALUE,
826 };
827 static const uint16_t fmt[] = {
828 FMT_UNDEFINED_OBJECT,
829 FMT_ASSOCIATION,
830 };
831 MTPData *d = usb_mtp_data_alloc(c);
832
833 trace_usb_mtp_op_get_device_info(s->dev.addr);
834
835 usb_mtp_add_u16(d, 100);
836 usb_mtp_add_u32(d, 0x00000006);
837 usb_mtp_add_u16(d, 0x0064);
838 usb_mtp_add_wstr(d, L"");
839 usb_mtp_add_u16(d, 0x0000);
840
841 usb_mtp_add_u16_array(d, ARRAY_SIZE(ops), ops);
842 usb_mtp_add_u16_array(d, 0, NULL);
843 usb_mtp_add_u16_array(d, 0, NULL);
844 usb_mtp_add_u16_array(d, 0, NULL);
845 usb_mtp_add_u16_array(d, ARRAY_SIZE(fmt), fmt);
846
847 usb_mtp_add_wstr(d, L"" MTP_MANUFACTURER);
848 usb_mtp_add_wstr(d, L"" MTP_PRODUCT);
849 usb_mtp_add_wstr(d, L"0.1");
850 usb_mtp_add_wstr(d, L"0123456789abcdef0123456789abcdef");
851
852 return d;
853}
854
855static MTPData *usb_mtp_get_storage_ids(MTPState *s, MTPControl *c)
856{
857 static const uint32_t ids[] = {
858 QEMU_STORAGE_ID,
859 };
860 MTPData *d = usb_mtp_data_alloc(c);
861
862 trace_usb_mtp_op_get_storage_ids(s->dev.addr);
863
864 usb_mtp_add_u32_array(d, ARRAY_SIZE(ids), ids);
865
866 return d;
867}
868
869static MTPData *usb_mtp_get_storage_info(MTPState *s, MTPControl *c)
870{
871 MTPData *d = usb_mtp_data_alloc(c);
872 struct statvfs buf;
873 int rc;
874
875 trace_usb_mtp_op_get_storage_info(s->dev.addr);
876
877 if (FLAG_SET(s, MTP_FLAG_WRITABLE)) {
878 usb_mtp_add_u16(d, 0x0003);
879 usb_mtp_add_u16(d, 0x0002);
880 usb_mtp_add_u16(d, 0x0000);
881 } else {
882 usb_mtp_add_u16(d, 0x0001);
883 usb_mtp_add_u16(d, 0x0002);
884 usb_mtp_add_u16(d, 0x0001);
885 }
886
887 rc = statvfs(s->root, &buf);
888 if (rc == 0) {
889 usb_mtp_add_u64(d, (uint64_t)buf.f_frsize * buf.f_blocks);
890 usb_mtp_add_u64(d, (uint64_t)buf.f_bavail * buf.f_blocks);
891 usb_mtp_add_u32(d, buf.f_ffree);
892 } else {
893 usb_mtp_add_u64(d, 0xffffffff);
894 usb_mtp_add_u64(d, 0xffffffff);
895 usb_mtp_add_u32(d, 0xffffffff);
896 }
897
898 usb_mtp_add_str(d, s->desc);
899 usb_mtp_add_wstr(d, L"123456789abcdef");
900 return d;
901}
902
903static MTPData *usb_mtp_get_object_handles(MTPState *s, MTPControl *c,
904 MTPObject *o)
905{
906 MTPData *d = usb_mtp_data_alloc(c);
907 uint32_t i = 0, handles[o->nchildren];
908 MTPObject *iter;
909
910 trace_usb_mtp_op_get_object_handles(s->dev.addr, o->handle, o->path);
911
912 QLIST_FOREACH(iter, &o->children, list) {
913 handles[i++] = iter->handle;
914 }
915 assert(i == o->nchildren);
916 usb_mtp_add_u32_array(d, o->nchildren, handles);
917
918 return d;
919}
920
921static MTPData *usb_mtp_get_object_info(MTPState *s, MTPControl *c,
922 MTPObject *o)
923{
924 MTPData *d = usb_mtp_data_alloc(c);
925
926 trace_usb_mtp_op_get_object_info(s->dev.addr, o->handle, o->path);
927
928 usb_mtp_add_u32(d, QEMU_STORAGE_ID);
929 usb_mtp_add_u16(d, o->format);
930 usb_mtp_add_u16(d, 0);
931
932 if (o->stat.st_size > 0xFFFFFFFF) {
933 usb_mtp_add_u32(d, 0xFFFFFFFF);
934 } else {
935 usb_mtp_add_u32(d, o->stat.st_size);
936 }
937
938 usb_mtp_add_u16(d, 0);
939 usb_mtp_add_u32(d, 0);
940 usb_mtp_add_u32(d, 0);
941 usb_mtp_add_u32(d, 0);
942 usb_mtp_add_u32(d, 0);
943 usb_mtp_add_u32(d, 0);
944 usb_mtp_add_u32(d, 0);
945
946 if (o->parent) {
947 usb_mtp_add_u32(d, o->parent->handle);
948 } else {
949 usb_mtp_add_u32(d, 0);
950 }
951 if (o->format == FMT_ASSOCIATION) {
952 usb_mtp_add_u16(d, 0x0001);
953 usb_mtp_add_u32(d, 0x00000001);
954 usb_mtp_add_u32(d, 0);
955 } else {
956 usb_mtp_add_u16(d, 0);
957 usb_mtp_add_u32(d, 0);
958 usb_mtp_add_u32(d, 0);
959 }
960
961 usb_mtp_add_str(d, o->name);
962 usb_mtp_add_time(d, o->stat.st_ctime);
963 usb_mtp_add_time(d, o->stat.st_mtime);
964 usb_mtp_add_wstr(d, L"");
965
966 return d;
967}
968
969static MTPData *usb_mtp_get_object(MTPState *s, MTPControl *c,
970 MTPObject *o)
971{
972 MTPData *d = usb_mtp_data_alloc(c);
973
974 trace_usb_mtp_op_get_object(s->dev.addr, o->handle, o->path);
975
976 d->fd = open(o->path, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
977 if (d->fd == -1) {
978 usb_mtp_data_free(d);
979 return NULL;
980 }
981 d->length = o->stat.st_size;
982 d->alloc = 512;
983 d->data = g_malloc(d->alloc);
984 return d;
985}
986
987static MTPData *usb_mtp_get_partial_object(MTPState *s, MTPControl *c,
988 MTPObject *o)
989{
990 MTPData *d;
991 off_t offset;
992
993 if (c->argc <= 2) {
994 return NULL;
995 }
996 trace_usb_mtp_op_get_partial_object(s->dev.addr, o->handle, o->path,
997 c->argv[1], c->argv[2]);
998
999 d = usb_mtp_data_alloc(c);
1000 d->fd = open(o->path, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
1001 if (d->fd == -1) {
1002 usb_mtp_data_free(d);
1003 return NULL;
1004 }
1005
1006 offset = c->argv[1];
1007 if (offset > o->stat.st_size) {
1008 offset = o->stat.st_size;
1009 }
1010 if (lseek(d->fd, offset, SEEK_SET) < 0) {
1011 usb_mtp_data_free(d);
1012 return NULL;
1013 }
1014
1015 d->length = c->argv[2];
1016 if (d->length > o->stat.st_size - offset) {
1017 d->length = o->stat.st_size - offset;
1018 }
1019
1020 return d;
1021}
1022
1023static MTPData *usb_mtp_get_object_props_supported(MTPState *s, MTPControl *c)
1024{
1025 static const uint16_t props[] = {
1026 PROP_STORAGE_ID,
1027 PROP_OBJECT_FORMAT,
1028 PROP_OBJECT_COMPRESSED_SIZE,
1029 PROP_PARENT_OBJECT,
1030 PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER,
1031 PROP_NAME,
1032 };
1033 MTPData *d = usb_mtp_data_alloc(c);
1034 usb_mtp_add_u16_array(d, ARRAY_SIZE(props), props);
1035
1036 return d;
1037}
1038
1039static MTPData *usb_mtp_get_object_prop_desc(MTPState *s, MTPControl *c)
1040{
1041 MTPData *d = usb_mtp_data_alloc(c);
1042 switch (c->argv[0]) {
1043 case PROP_STORAGE_ID:
1044 usb_mtp_add_u16(d, PROP_STORAGE_ID);
1045 usb_mtp_add_u16(d, DATA_TYPE_UINT32);
1046 usb_mtp_add_u8(d, 0x00);
1047 usb_mtp_add_u32(d, 0x00000000);
1048 usb_mtp_add_u32(d, 0x00000000);
1049 usb_mtp_add_u8(d, 0x00);
1050 break;
1051 case PROP_OBJECT_FORMAT:
1052 usb_mtp_add_u16(d, PROP_OBJECT_FORMAT);
1053 usb_mtp_add_u16(d, DATA_TYPE_UINT16);
1054 usb_mtp_add_u8(d, 0x00);
1055 usb_mtp_add_u16(d, 0x0000);
1056 usb_mtp_add_u32(d, 0x00000000);
1057 usb_mtp_add_u8(d, 0x00);
1058 break;
1059 case PROP_OBJECT_COMPRESSED_SIZE:
1060 usb_mtp_add_u16(d, PROP_OBJECT_COMPRESSED_SIZE);
1061 usb_mtp_add_u16(d, DATA_TYPE_UINT64);
1062 usb_mtp_add_u8(d, 0x00);
1063 usb_mtp_add_u64(d, 0x0000000000000000);
1064 usb_mtp_add_u32(d, 0x00000000);
1065 usb_mtp_add_u8(d, 0x00);
1066 break;
1067 case PROP_PARENT_OBJECT:
1068 usb_mtp_add_u16(d, PROP_PARENT_OBJECT);
1069 usb_mtp_add_u16(d, DATA_TYPE_UINT32);
1070 usb_mtp_add_u8(d, 0x00);
1071 usb_mtp_add_u32(d, 0x00000000);
1072 usb_mtp_add_u32(d, 0x00000000);
1073 usb_mtp_add_u8(d, 0x00);
1074 break;
1075 case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
1076 usb_mtp_add_u16(d, PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER);
1077 usb_mtp_add_u16(d, DATA_TYPE_UINT128);
1078 usb_mtp_add_u8(d, 0x00);
1079 usb_mtp_add_u64(d, 0x0000000000000000);
1080 usb_mtp_add_u64(d, 0x0000000000000000);
1081 usb_mtp_add_u32(d, 0x00000000);
1082 usb_mtp_add_u8(d, 0x00);
1083 break;
1084 case PROP_NAME:
1085 usb_mtp_add_u16(d, PROP_NAME);
1086 usb_mtp_add_u16(d, DATA_TYPE_STRING);
1087 usb_mtp_add_u8(d, 0x00);
1088 usb_mtp_add_u8(d, 0x00);
1089 usb_mtp_add_u32(d, 0x00000000);
1090 usb_mtp_add_u8(d, 0x00);
1091 break;
1092 default:
1093 usb_mtp_data_free(d);
1094 return NULL;
1095 }
1096
1097 return d;
1098}
1099
1100static MTPData *usb_mtp_get_object_prop_value(MTPState *s, MTPControl *c,
1101 MTPObject *o)
1102{
1103 MTPData *d = usb_mtp_data_alloc(c);
1104 switch (c->argv[1]) {
1105 case PROP_STORAGE_ID:
1106 usb_mtp_add_u32(d, QEMU_STORAGE_ID);
1107 break;
1108 case PROP_OBJECT_FORMAT:
1109 usb_mtp_add_u16(d, o->format);
1110 break;
1111 case PROP_OBJECT_COMPRESSED_SIZE:
1112 usb_mtp_add_u64(d, o->stat.st_size);
1113 break;
1114 case PROP_PARENT_OBJECT:
1115 if (o->parent == NULL) {
1116 usb_mtp_add_u32(d, 0x00000000);
1117 } else {
1118 usb_mtp_add_u32(d, o->parent->handle);
1119 }
1120 break;
1121 case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
1122
1123
1124
1125 usb_mtp_add_u64(d, 0x0000000000000000);
1126 usb_mtp_add_u64(d, o->handle);
1127 break;
1128 case PROP_NAME:
1129 usb_mtp_add_str(d, o->name);
1130 break;
1131 default:
1132 usb_mtp_data_free(d);
1133 return NULL;
1134 }
1135
1136 return d;
1137}
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148enum {
1149 DELETE_SUCCESS = (1 << 0),
1150 DELETE_FAILURE = (1 << 1),
1151 DELETE_PARTIAL = (DELETE_FAILURE | DELETE_SUCCESS),
1152};
1153
1154static int usb_mtp_deletefn(MTPState *s, MTPObject *o, uint32_t trans)
1155{
1156 MTPObject *iter, *iter2;
1157 int ret = 0;
1158
1159
1160
1161
1162
1163 QLIST_FOREACH(iter, &o->children, list) {
1164 if (iter->format == FMT_ASSOCIATION) {
1165 QLIST_FOREACH(iter2, &iter->children, list) {
1166 ret |= usb_mtp_deletefn(s, iter2, trans);
1167 }
1168 }
1169 }
1170
1171 if (o->format == FMT_UNDEFINED_OBJECT) {
1172 if (remove(o->path)) {
1173 ret |= DELETE_FAILURE;
1174 } else {
1175 usb_mtp_object_free(s, o);
1176 ret |= DELETE_SUCCESS;
1177 }
1178 } else if (o->format == FMT_ASSOCIATION) {
1179 if (rmdir(o->path)) {
1180 ret |= DELETE_FAILURE;
1181 } else {
1182 usb_mtp_object_free(s, o);
1183 ret |= DELETE_SUCCESS;
1184 }
1185 }
1186
1187 return ret;
1188}
1189
1190static void usb_mtp_object_delete(MTPState *s, uint32_t handle,
1191 uint32_t format_code, uint32_t trans)
1192{
1193 MTPObject *o;
1194 int ret;
1195
1196
1197 if (!FLAG_SET(s, MTP_FLAG_WRITABLE)) {
1198 usb_mtp_queue_result(s, RES_STORE_READ_ONLY,
1199 trans, 0, 0, 0, 0);
1200 return;
1201 }
1202
1203 if (format_code != 0) {
1204 usb_mtp_queue_result(s, RES_SPEC_BY_FORMAT_UNSUPPORTED,
1205 trans, 0, 0, 0, 0);
1206 return;
1207 }
1208
1209 if (handle == 0xFFFFFFF) {
1210 o = QTAILQ_FIRST(&s->objects);
1211 } else {
1212 o = usb_mtp_object_lookup(s, handle);
1213 }
1214 if (o == NULL) {
1215 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1216 trans, 0, 0, 0, 0);
1217 return;
1218 }
1219
1220 ret = usb_mtp_deletefn(s, o, trans);
1221 switch (ret) {
1222 case DELETE_SUCCESS:
1223 usb_mtp_queue_result(s, RES_OK, trans,
1224 0, 0, 0, 0);
1225 break;
1226 case DELETE_FAILURE:
1227 usb_mtp_queue_result(s, RES_PARTIAL_DELETE,
1228 trans, 0, 0, 0, 0);
1229 break;
1230 case DELETE_PARTIAL:
1231 usb_mtp_queue_result(s, RES_PARTIAL_DELETE,
1232 trans, 0, 0, 0, 0);
1233 break;
1234 default:
1235 g_assert_not_reached();
1236 }
1237
1238 return;
1239}
1240
1241static void usb_mtp_command(MTPState *s, MTPControl *c)
1242{
1243 MTPData *data_in = NULL;
1244 MTPObject *o = NULL;
1245 uint32_t nres = 0, res0 = 0;
1246 Error *err = NULL;
1247
1248
1249 if (c->code >= CMD_CLOSE_SESSION && s->session == 0) {
1250 usb_mtp_queue_result(s, RES_SESSION_NOT_OPEN,
1251 c->trans, 0, 0, 0, 0);
1252 return;
1253 }
1254
1255
1256 switch (c->code) {
1257 case CMD_GET_DEVICE_INFO:
1258 data_in = usb_mtp_get_device_info(s, c);
1259 break;
1260 case CMD_OPEN_SESSION:
1261 if (s->session) {
1262 usb_mtp_queue_result(s, RES_SESSION_ALREADY_OPEN,
1263 c->trans, 1, s->session, 0, 0);
1264 return;
1265 }
1266 if (c->argv[0] == 0) {
1267 usb_mtp_queue_result(s, RES_INVALID_PARAMETER,
1268 c->trans, 0, 0, 0, 0);
1269 return;
1270 }
1271 trace_usb_mtp_op_open_session(s->dev.addr);
1272 s->session = c->argv[0];
1273 usb_mtp_object_alloc(s, s->next_handle++, NULL, s->root);
1274
1275 s->file_monitor = qemu_file_monitor_new(&err);
1276 if (err) {
1277 error_report("usb-mtp: file monitoring init failed: %s",
1278 error_get_pretty(err));
1279 error_free(err);
1280 } else {
1281 QTAILQ_INIT(&s->events);
1282 }
1283 break;
1284 case CMD_CLOSE_SESSION:
1285 trace_usb_mtp_op_close_session(s->dev.addr);
1286 s->session = 0;
1287 s->next_handle = 0;
1288 usb_mtp_file_monitor_cleanup(s);
1289 usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects));
1290 assert(QTAILQ_EMPTY(&s->objects));
1291 break;
1292 case CMD_GET_STORAGE_IDS:
1293 data_in = usb_mtp_get_storage_ids(s, c);
1294 break;
1295 case CMD_GET_STORAGE_INFO:
1296 if (c->argv[0] != QEMU_STORAGE_ID &&
1297 c->argv[0] != 0xffffffff) {
1298 usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID,
1299 c->trans, 0, 0, 0, 0);
1300 return;
1301 }
1302 data_in = usb_mtp_get_storage_info(s, c);
1303 break;
1304 case CMD_GET_NUM_OBJECTS:
1305 case CMD_GET_OBJECT_HANDLES:
1306 if (c->argv[0] != QEMU_STORAGE_ID &&
1307 c->argv[0] != 0xffffffff) {
1308 usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID,
1309 c->trans, 0, 0, 0, 0);
1310 return;
1311 }
1312 if (c->argv[1] != 0x00000000) {
1313 usb_mtp_queue_result(s, RES_SPEC_BY_FORMAT_UNSUPPORTED,
1314 c->trans, 0, 0, 0, 0);
1315 return;
1316 }
1317 if (c->argv[2] == 0x00000000 ||
1318 c->argv[2] == 0xffffffff) {
1319 o = QTAILQ_FIRST(&s->objects);
1320 } else {
1321 o = usb_mtp_object_lookup(s, c->argv[2]);
1322 }
1323 if (o == NULL) {
1324 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1325 c->trans, 0, 0, 0, 0);
1326 return;
1327 }
1328 if (o->format != FMT_ASSOCIATION) {
1329 usb_mtp_queue_result(s, RES_INVALID_PARENT_OBJECT,
1330 c->trans, 0, 0, 0, 0);
1331 return;
1332 }
1333 usb_mtp_object_readdir(s, o);
1334 if (c->code == CMD_GET_NUM_OBJECTS) {
1335 trace_usb_mtp_op_get_num_objects(s->dev.addr, o->handle, o->path);
1336 nres = 1;
1337 res0 = o->nchildren;
1338 } else {
1339 data_in = usb_mtp_get_object_handles(s, c, o);
1340 }
1341 break;
1342 case CMD_GET_OBJECT_INFO:
1343 o = usb_mtp_object_lookup(s, c->argv[0]);
1344 if (o == NULL) {
1345 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1346 c->trans, 0, 0, 0, 0);
1347 return;
1348 }
1349 data_in = usb_mtp_get_object_info(s, c, o);
1350 break;
1351 case CMD_GET_OBJECT:
1352 o = usb_mtp_object_lookup(s, c->argv[0]);
1353 if (o == NULL) {
1354 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1355 c->trans, 0, 0, 0, 0);
1356 return;
1357 }
1358 if (o->format == FMT_ASSOCIATION) {
1359 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1360 c->trans, 0, 0, 0, 0);
1361 return;
1362 }
1363 data_in = usb_mtp_get_object(s, c, o);
1364 if (data_in == NULL) {
1365 usb_mtp_queue_result(s, RES_GENERAL_ERROR,
1366 c->trans, 0, 0, 0, 0);
1367 return;
1368 }
1369 break;
1370 case CMD_DELETE_OBJECT:
1371 usb_mtp_object_delete(s, c->argv[0], c->argv[1], c->trans);
1372 return;
1373 case CMD_GET_PARTIAL_OBJECT:
1374 o = usb_mtp_object_lookup(s, c->argv[0]);
1375 if (o == NULL) {
1376 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1377 c->trans, 0, 0, 0, 0);
1378 return;
1379 }
1380 if (o->format == FMT_ASSOCIATION) {
1381 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1382 c->trans, 0, 0, 0, 0);
1383 return;
1384 }
1385 data_in = usb_mtp_get_partial_object(s, c, o);
1386 if (data_in == NULL) {
1387 usb_mtp_queue_result(s, RES_GENERAL_ERROR,
1388 c->trans, 0, 0, 0, 0);
1389 return;
1390 }
1391 nres = 1;
1392 res0 = data_in->length;
1393 break;
1394 case CMD_SEND_OBJECT_INFO:
1395
1396 if (!FLAG_SET(s, MTP_FLAG_WRITABLE)) {
1397 usb_mtp_queue_result(s, RES_STORE_READ_ONLY,
1398 c->trans, 0, 0, 0, 0);
1399 } else if (c->argv[0] && (c->argv[0] != QEMU_STORAGE_ID)) {
1400
1401 usb_mtp_queue_result(s, RES_STORE_NOT_AVAILABLE, c->trans,
1402 0, 0, 0, 0);
1403 } else if (c->argv[1] && !c->argv[0]) {
1404
1405 usb_mtp_queue_result(s, RES_DESTINATION_UNSUPPORTED, c->trans,
1406 0, 0, 0, 0);
1407 } else {
1408 uint32_t handle = c->argv[1];
1409 if (handle == 0xFFFFFFFF || handle == 0) {
1410
1411 o = QTAILQ_FIRST(&s->objects);
1412 } else {
1413 o = usb_mtp_object_lookup(s, handle);
1414 }
1415 if (o == NULL) {
1416 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, c->trans,
1417 0, 0, 0, 0);
1418 } else if (o->format != FMT_ASSOCIATION) {
1419 usb_mtp_queue_result(s, RES_INVALID_PARENT_OBJECT, c->trans,
1420 0, 0, 0, 0);
1421 }
1422 }
1423 if (o) {
1424 s->dataset.parent_handle = o->handle;
1425 }
1426 s->data_out = usb_mtp_data_alloc(c);
1427 return;
1428 case CMD_SEND_OBJECT:
1429 if (!FLAG_SET(s, MTP_FLAG_WRITABLE)) {
1430 usb_mtp_queue_result(s, RES_STORE_READ_ONLY,
1431 c->trans, 0, 0, 0, 0);
1432 return;
1433 }
1434 if (!s->write_pending) {
1435 usb_mtp_queue_result(s, RES_INVALID_OBJECTINFO,
1436 c->trans, 0, 0, 0, 0);
1437 return;
1438 }
1439 s->data_out = usb_mtp_data_alloc(c);
1440 return;
1441 case CMD_GET_OBJECT_PROPS_SUPPORTED:
1442 if (c->argv[0] != FMT_UNDEFINED_OBJECT &&
1443 c->argv[0] != FMT_ASSOCIATION) {
1444 usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
1445 c->trans, 0, 0, 0, 0);
1446 return;
1447 }
1448 data_in = usb_mtp_get_object_props_supported(s, c);
1449 break;
1450 case CMD_GET_OBJECT_PROP_DESC:
1451 if (c->argv[1] != FMT_UNDEFINED_OBJECT &&
1452 c->argv[1] != FMT_ASSOCIATION) {
1453 usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
1454 c->trans, 0, 0, 0, 0);
1455 return;
1456 }
1457 data_in = usb_mtp_get_object_prop_desc(s, c);
1458 if (data_in == NULL) {
1459 usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE,
1460 c->trans, 0, 0, 0, 0);
1461 return;
1462 }
1463 break;
1464 case CMD_GET_OBJECT_PROP_VALUE:
1465 o = usb_mtp_object_lookup(s, c->argv[0]);
1466 if (o == NULL) {
1467 usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
1468 c->trans, 0, 0, 0, 0);
1469 return;
1470 }
1471 data_in = usb_mtp_get_object_prop_value(s, c, o);
1472 if (data_in == NULL) {
1473 usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE,
1474 c->trans, 0, 0, 0, 0);
1475 return;
1476 }
1477 break;
1478 default:
1479 trace_usb_mtp_op_unknown(s->dev.addr, c->code);
1480 usb_mtp_queue_result(s, RES_OPERATION_NOT_SUPPORTED,
1481 c->trans, 0, 0, 0, 0);
1482 return;
1483 }
1484
1485
1486 if (data_in) {
1487 assert(s->data_in == NULL);
1488 s->data_in = data_in;
1489 }
1490 usb_mtp_queue_result(s, RES_OK, c->trans, nres, res0, 0, 0);
1491}
1492
1493
1494
1495static void usb_mtp_handle_reset(USBDevice *dev)
1496{
1497 MTPState *s = USB_MTP(dev);
1498
1499 trace_usb_mtp_reset(s->dev.addr);
1500
1501 usb_mtp_file_monitor_cleanup(s);
1502 usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects));
1503 s->session = 0;
1504 usb_mtp_data_free(s->data_in);
1505 s->data_in = NULL;
1506 usb_mtp_data_free(s->data_out);
1507 s->data_out = NULL;
1508 g_free(s->result);
1509 s->result = NULL;
1510}
1511
1512static void usb_mtp_handle_control(USBDevice *dev, USBPacket *p,
1513 int request, int value, int index,
1514 int length, uint8_t *data)
1515{
1516 int ret;
1517 MTPState *s = USB_MTP(dev);
1518 uint16_t *event = (uint16_t *)data;
1519
1520 switch (request) {
1521 case ClassInterfaceOutRequest | 0x64:
1522 if (*event == EVT_CANCEL_TRANSACTION) {
1523 g_free(s->result);
1524 s->result = NULL;
1525 usb_mtp_data_free(s->data_in);
1526 s->data_in = NULL;
1527 if (s->write_pending) {
1528 g_free(s->dataset.filename);
1529 s->write_pending = false;
1530 s->dataset.size = 0;
1531 }
1532 usb_mtp_data_free(s->data_out);
1533 s->data_out = NULL;
1534 } else {
1535 p->status = USB_RET_STALL;
1536 }
1537 break;
1538 default:
1539 ret = usb_desc_handle_control(dev, p, request,
1540 value, index, length, data);
1541 if (ret >= 0) {
1542 return;
1543 }
1544 }
1545
1546 trace_usb_mtp_stall(dev->addr, "unknown control request");
1547}
1548
1549static void usb_mtp_cancel_packet(USBDevice *dev, USBPacket *p)
1550{
1551
1552 fprintf(stderr, "%s\n", __func__);
1553}
1554
1555static char *utf16_to_str(uint8_t len, uint8_t *str16)
1556{
1557 wchar_t *wstr = g_new0(wchar_t, len + 1);
1558 int count, dlen;
1559 char *dest;
1560
1561 for (count = 0; count < len; count++) {
1562
1563 wstr[count] = lduw_le_p(str16 + (count * 2));
1564 }
1565 wstr[count] = 0;
1566
1567 dlen = wcstombs(NULL, wstr, 0) + 1;
1568 dest = g_malloc(dlen);
1569 wcstombs(dest, wstr, dlen);
1570 g_free(wstr);
1571 return dest;
1572}
1573
1574
1575static uint64_t write_retry(int fd, void *buf, uint64_t size, off_t offset)
1576{
1577 uint64_t ret = 0;
1578
1579 if (lseek(fd, offset, SEEK_SET) < 0) {
1580 goto done;
1581 }
1582
1583 ret = qemu_write_full(fd, buf, size);
1584
1585done:
1586 return ret;
1587}
1588
1589static int usb_mtp_update_object(MTPObject *parent, char *name)
1590{
1591 int ret = 0;
1592
1593 MTPObject *o =
1594 usb_mtp_object_lookup_name(parent, name, strlen(name));
1595
1596 if (o) {
1597 ret = lstat(o->path, &o->stat);
1598 }
1599
1600 return ret;
1601}
1602
1603static void usb_mtp_write_data(MTPState *s, uint32_t handle)
1604{
1605 MTPData *d = s->data_out;
1606 MTPObject *parent =
1607 usb_mtp_object_lookup(s, s->dataset.parent_handle);
1608 char *path = NULL;
1609 uint64_t rc;
1610 mode_t mask = 0644;
1611 int ret = 0;
1612
1613 assert(d != NULL);
1614
1615 switch (d->write_status) {
1616 case WRITE_START:
1617 if (!parent || !s->write_pending) {
1618 usb_mtp_queue_result(s, RES_INVALID_OBJECTINFO, d->trans,
1619 0, 0, 0, 0);
1620 return;
1621 }
1622
1623 if (s->dataset.filename) {
1624 path = g_strdup_printf("%s/%s", parent->path, s->dataset.filename);
1625 if (s->dataset.format == FMT_ASSOCIATION) {
1626 ret = mkdir(path, mask);
1627 if (!ret) {
1628 usb_mtp_queue_result(s, RES_OK, d->trans, 3,
1629 QEMU_STORAGE_ID,
1630 s->dataset.parent_handle,
1631 handle);
1632 goto close;
1633 }
1634 goto done;
1635 }
1636
1637 d->fd = open(path, O_CREAT | O_WRONLY |
1638 O_CLOEXEC | O_NOFOLLOW, mask);
1639 if (d->fd == -1) {
1640 ret = 1;
1641 goto done;
1642 }
1643
1644
1645 if (!s->dataset.size) {
1646 goto done;
1647 }
1648 if (d->length != MTP_WRITE_BUF_SZ && !d->pending) {
1649 d->write_status = WRITE_END;
1650 }
1651 }
1652
1653 case WRITE_CONTINUE:
1654 case WRITE_END:
1655 rc = write_retry(d->fd, d->data, d->data_offset,
1656 d->offset - d->data_offset);
1657 if (rc != d->data_offset) {
1658 ret = 1;
1659 goto done;
1660 }
1661 if (d->write_status != WRITE_END) {
1662 g_free(path);
1663 return;
1664 } else {
1665
1666
1667
1668
1669
1670 if ((s->dataset.size != 0xFFFFFFFF &&
1671 d->offset != s->dataset.size) ||
1672 usb_mtp_update_object(parent, s->dataset.filename)) {
1673 usb_mtp_queue_result(s, RES_INCOMPLETE_TRANSFER, d->trans,
1674 0, 0, 0, 0);
1675 goto close;
1676 }
1677 }
1678 }
1679
1680done:
1681 if (ret) {
1682 usb_mtp_queue_result(s, RES_STORE_FULL, d->trans,
1683 0, 0, 0, 0);
1684 } else {
1685 usb_mtp_queue_result(s, RES_OK, d->trans,
1686 0, 0, 0, 0);
1687 }
1688close:
1689
1690
1691
1692
1693 if (d->fd != -1) {
1694 close(d->fd);
1695 d->fd = -1;
1696 }
1697 g_free(s->dataset.filename);
1698 s->dataset.size = 0;
1699 g_free(path);
1700 s->write_pending = false;
1701}
1702
1703static void usb_mtp_write_metadata(MTPState *s, uint64_t dlen)
1704{
1705 MTPData *d = s->data_out;
1706 ObjectInfo *dataset = (ObjectInfo *)d->data;
1707 char *filename;
1708 MTPObject *o;
1709 MTPObject *p = usb_mtp_object_lookup(s, s->dataset.parent_handle);
1710 uint32_t next_handle = s->next_handle;
1711 size_t filename_chars = dlen - offsetof(ObjectInfo, filename);
1712
1713
1714
1715
1716
1717
1718 filename_chars /= 2;
1719
1720 assert(!s->write_pending);
1721 assert(p != NULL);
1722
1723 filename = utf16_to_str(MIN(dataset->length, filename_chars),
1724 dataset->filename);
1725
1726 if (strchr(filename, '/')) {
1727 usb_mtp_queue_result(s, RES_PARAMETER_NOT_SUPPORTED, d->trans,
1728 0, 0, 0, 0);
1729 g_free(filename);
1730 return;
1731 }
1732
1733 o = usb_mtp_object_lookup_name(p, filename, -1);
1734 if (o != NULL) {
1735 next_handle = o->handle;
1736 }
1737
1738 s->dataset.filename = filename;
1739 s->dataset.format = dataset->format;
1740 s->dataset.size = dataset->size;
1741 s->write_pending = true;
1742
1743 if (s->dataset.format == FMT_ASSOCIATION) {
1744 usb_mtp_write_data(s, next_handle);
1745 } else {
1746 usb_mtp_queue_result(s, RES_OK, d->trans, 3, QEMU_STORAGE_ID,
1747 s->dataset.parent_handle, next_handle);
1748 }
1749}
1750
1751static void usb_mtp_get_data(MTPState *s, mtp_container *container,
1752 USBPacket *p)
1753{
1754 MTPData *d = s->data_out;
1755 uint64_t dlen;
1756 uint32_t data_len = p->iov.size;
1757 uint64_t total_len;
1758
1759 if (!d) {
1760 usb_mtp_queue_result(s, RES_INVALID_OBJECTINFO, 0,
1761 0, 0, 0, 0);
1762 return;
1763 }
1764 if (d->first) {
1765
1766 total_len = cpu_to_le32(container->length) - sizeof(mtp_container);
1767
1768 data_len -= sizeof(mtp_container);
1769 if (total_len < MTP_WRITE_BUF_SZ) {
1770 usb_mtp_realloc(d, total_len);
1771 d->length += total_len;
1772 } else {
1773 usb_mtp_realloc(d, MTP_WRITE_BUF_SZ - sizeof(mtp_container));
1774 d->length += MTP_WRITE_BUF_SZ - sizeof(mtp_container);
1775 }
1776 d->offset = 0;
1777 d->first = false;
1778 d->pending = false;
1779 d->data_offset = 0;
1780 d->write_status = WRITE_START;
1781 }
1782
1783 if (d->pending) {
1784 memset(d->data, 0, d->length);
1785 if (d->length != MTP_WRITE_BUF_SZ) {
1786 usb_mtp_realloc(d, MTP_WRITE_BUF_SZ - d->length);
1787 d->length += (MTP_WRITE_BUF_SZ - d->length);
1788 }
1789 d->pending = false;
1790 d->write_status = WRITE_CONTINUE;
1791 d->data_offset = 0;
1792 }
1793
1794 if (d->length - d->data_offset > data_len) {
1795 dlen = data_len;
1796 } else {
1797 dlen = d->length - d->data_offset;
1798 }
1799
1800 switch (d->code) {
1801 case CMD_SEND_OBJECT_INFO:
1802 usb_packet_copy(p, d->data + d->data_offset, dlen);
1803 d->offset += dlen;
1804 d->data_offset += dlen;
1805 if (d->data_offset == d->length) {
1806
1807 if (!s->result) {
1808 usb_mtp_write_metadata(s, dlen);
1809 }
1810 usb_mtp_data_free(s->data_out);
1811 s->data_out = NULL;
1812 return;
1813 }
1814 break;
1815 case CMD_SEND_OBJECT:
1816 usb_packet_copy(p, d->data + d->data_offset, dlen);
1817 d->offset += dlen;
1818 d->data_offset += dlen;
1819 if ((p->iov.size % 64) || !p->iov.size) {
1820 assert((s->dataset.size == 0xFFFFFFFF) ||
1821 (s->dataset.size == d->offset));
1822
1823 if (d->length == MTP_WRITE_BUF_SZ) {
1824 d->write_status = WRITE_END;
1825 } else {
1826 d->write_status = WRITE_START;
1827 }
1828 usb_mtp_write_data(s, 0);
1829 usb_mtp_data_free(s->data_out);
1830 s->data_out = NULL;
1831 return;
1832 }
1833 if (d->data_offset == d->length) {
1834 d->pending = true;
1835 usb_mtp_write_data(s, 0);
1836 }
1837 break;
1838 default:
1839 p->status = USB_RET_STALL;
1840 return;
1841 }
1842}
1843
1844static void usb_mtp_handle_data(USBDevice *dev, USBPacket *p)
1845{
1846 MTPState *s = USB_MTP(dev);
1847 MTPControl cmd;
1848 mtp_container container;
1849 uint32_t params[5];
1850 uint16_t container_type;
1851 int i, rc;
1852
1853 switch (p->ep->nr) {
1854 case EP_DATA_IN:
1855 if (s->data_out != NULL) {
1856
1857 trace_usb_mtp_stall(s->dev.addr, "awaiting data-out");
1858 p->status = USB_RET_STALL;
1859 return;
1860 }
1861 if (p->iov.size < sizeof(container)) {
1862 trace_usb_mtp_stall(s->dev.addr, "packet too small");
1863 p->status = USB_RET_STALL;
1864 return;
1865 }
1866 if (s->data_in != NULL) {
1867 MTPData *d = s->data_in;
1868 uint64_t dlen = d->length - d->offset;
1869 if (d->first) {
1870 trace_usb_mtp_data_in(s->dev.addr, d->trans, d->length);
1871 if (d->length + sizeof(container) > 0xFFFFFFFF) {
1872 container.length = cpu_to_le32(0xFFFFFFFF);
1873 } else {
1874 container.length =
1875 cpu_to_le32(d->length + sizeof(container));
1876 }
1877 container.type = cpu_to_le16(TYPE_DATA);
1878 container.code = cpu_to_le16(d->code);
1879 container.trans = cpu_to_le32(d->trans);
1880 usb_packet_copy(p, &container, sizeof(container));
1881 d->first = false;
1882 if (dlen > p->iov.size - sizeof(container)) {
1883 dlen = p->iov.size - sizeof(container);
1884 }
1885 } else {
1886 if (dlen > p->iov.size) {
1887 dlen = p->iov.size;
1888 }
1889 }
1890 if (d->fd == -1) {
1891 usb_packet_copy(p, d->data + d->offset, dlen);
1892 } else {
1893 if (d->alloc < p->iov.size) {
1894 d->alloc = p->iov.size;
1895 d->data = g_realloc(d->data, d->alloc);
1896 }
1897 rc = read(d->fd, d->data, dlen);
1898 if (rc != dlen) {
1899 memset(d->data, 0, dlen);
1900 s->result->code = RES_INCOMPLETE_TRANSFER;
1901 }
1902 usb_packet_copy(p, d->data, dlen);
1903 }
1904 d->offset += dlen;
1905 if (d->offset == d->length) {
1906 usb_mtp_data_free(s->data_in);
1907 s->data_in = NULL;
1908 }
1909 } else if (s->result != NULL) {
1910 MTPControl *r = s->result;
1911 int length = sizeof(container) + r->argc * sizeof(uint32_t);
1912 if (r->code == RES_OK) {
1913 trace_usb_mtp_success(s->dev.addr, r->trans,
1914 (r->argc > 0) ? r->argv[0] : 0,
1915 (r->argc > 1) ? r->argv[1] : 0);
1916 } else {
1917 trace_usb_mtp_error(s->dev.addr, r->code, r->trans,
1918 (r->argc > 0) ? r->argv[0] : 0,
1919 (r->argc > 1) ? r->argv[1] : 0);
1920 }
1921 container.length = cpu_to_le32(length);
1922 container.type = cpu_to_le16(TYPE_RESPONSE);
1923 container.code = cpu_to_le16(r->code);
1924 container.trans = cpu_to_le32(r->trans);
1925 for (i = 0; i < r->argc; i++) {
1926 params[i] = cpu_to_le32(r->argv[i]);
1927 }
1928 usb_packet_copy(p, &container, sizeof(container));
1929 usb_packet_copy(p, ¶ms, length - sizeof(container));
1930 g_free(s->result);
1931 s->result = NULL;
1932 }
1933 break;
1934 case EP_DATA_OUT:
1935 if (p->iov.size < sizeof(container)) {
1936 trace_usb_mtp_stall(s->dev.addr, "packet too small");
1937 p->status = USB_RET_STALL;
1938 return;
1939 }
1940 if ((s->data_out != NULL) && !s->data_out->first) {
1941 container_type = TYPE_DATA;
1942 } else {
1943 usb_packet_copy(p, &container, sizeof(container));
1944 container_type = le16_to_cpu(container.type);
1945 }
1946 switch (container_type) {
1947 case TYPE_COMMAND:
1948 if (s->data_in || s->data_out || s->result) {
1949 trace_usb_mtp_stall(s->dev.addr, "transaction inflight");
1950 p->status = USB_RET_STALL;
1951 return;
1952 }
1953 cmd.code = le16_to_cpu(container.code);
1954 cmd.argc = (le32_to_cpu(container.length) - sizeof(container))
1955 / sizeof(uint32_t);
1956 cmd.trans = le32_to_cpu(container.trans);
1957 if (cmd.argc > ARRAY_SIZE(cmd.argv)) {
1958 cmd.argc = ARRAY_SIZE(cmd.argv);
1959 }
1960 if (p->iov.size < sizeof(container) + cmd.argc * sizeof(uint32_t)) {
1961 trace_usb_mtp_stall(s->dev.addr, "packet too small");
1962 p->status = USB_RET_STALL;
1963 return;
1964 }
1965 usb_packet_copy(p, ¶ms, cmd.argc * sizeof(uint32_t));
1966 for (i = 0; i < cmd.argc; i++) {
1967 cmd.argv[i] = le32_to_cpu(params[i]);
1968 }
1969 trace_usb_mtp_command(s->dev.addr, cmd.code, cmd.trans,
1970 (cmd.argc > 0) ? cmd.argv[0] : 0,
1971 (cmd.argc > 1) ? cmd.argv[1] : 0,
1972 (cmd.argc > 2) ? cmd.argv[2] : 0,
1973 (cmd.argc > 3) ? cmd.argv[3] : 0,
1974 (cmd.argc > 4) ? cmd.argv[4] : 0);
1975 usb_mtp_command(s, &cmd);
1976 break;
1977 case TYPE_DATA:
1978
1979
1980
1981 if (s->result != NULL) {
1982 return;
1983 }
1984 usb_mtp_get_data(s, &container, p);
1985 break;
1986 default:
1987
1988 p->status = USB_RET_STALL;
1989 return;
1990 }
1991 break;
1992 case EP_EVENT:
1993 if (!QTAILQ_EMPTY(&s->events)) {
1994 struct MTPMonEntry *e = QTAILQ_LAST(&s->events);
1995 uint32_t handle;
1996 int len = sizeof(container) + sizeof(uint32_t);
1997
1998 if (p->iov.size < len) {
1999 trace_usb_mtp_stall(s->dev.addr,
2000 "packet too small to send event");
2001 p->status = USB_RET_STALL;
2002 return;
2003 }
2004
2005 QTAILQ_REMOVE(&s->events, e, next);
2006 container.length = cpu_to_le32(len);
2007 container.type = cpu_to_le32(TYPE_EVENT);
2008 container.code = cpu_to_le16(e->event);
2009 container.trans = 0;
2010 handle = cpu_to_le32(e->handle);
2011 usb_packet_copy(p, &container, sizeof(container));
2012 usb_packet_copy(p, &handle, sizeof(uint32_t));
2013 g_free(e);
2014 return;
2015 }
2016 p->status = USB_RET_NAK;
2017 return;
2018 default:
2019 trace_usb_mtp_stall(s->dev.addr, "invalid endpoint");
2020 p->status = USB_RET_STALL;
2021 return;
2022 }
2023
2024 if (p->actual_length == 0) {
2025 trace_usb_mtp_nak(s->dev.addr, p->ep->nr);
2026 p->status = USB_RET_NAK;
2027 return;
2028 } else {
2029 trace_usb_mtp_xfer(s->dev.addr, p->ep->nr, p->actual_length,
2030 p->iov.size);
2031 return;
2032 }
2033}
2034
2035static void usb_mtp_realize(USBDevice *dev, Error **errp)
2036{
2037 MTPState *s = USB_MTP(dev);
2038
2039 usb_desc_create_serial(dev);
2040 usb_desc_init(dev);
2041 QTAILQ_INIT(&s->objects);
2042 if (s->desc == NULL) {
2043 if (s->root == NULL) {
2044 error_setg(errp, "usb-mtp: rootdir property must be configured");
2045 return;
2046 }
2047 s->desc = strrchr(s->root, '/');
2048 if (s->desc && s->desc[0]) {
2049 s->desc = g_strdup(s->desc + 1);
2050 } else {
2051 s->desc = g_strdup("none");
2052 }
2053 }
2054
2055 if (!s->readonly) {
2056 s->flags |= (1 << MTP_FLAG_WRITABLE);
2057 }
2058
2059}
2060
2061static const VMStateDescription vmstate_usb_mtp = {
2062 .name = "usb-mtp",
2063 .unmigratable = 1,
2064 .version_id = 1,
2065 .minimum_version_id = 1,
2066 .fields = (VMStateField[]) {
2067 VMSTATE_USB_DEVICE(dev, MTPState),
2068 VMSTATE_END_OF_LIST()
2069 }
2070};
2071
2072static Property mtp_properties[] = {
2073 DEFINE_PROP_STRING("rootdir", MTPState, root),
2074 DEFINE_PROP_STRING("desc", MTPState, desc),
2075 DEFINE_PROP_BOOL("readonly", MTPState, readonly, true),
2076 DEFINE_PROP_END_OF_LIST(),
2077};
2078
2079static void usb_mtp_class_initfn(ObjectClass *klass, void *data)
2080{
2081 DeviceClass *dc = DEVICE_CLASS(klass);
2082 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
2083
2084 uc->realize = usb_mtp_realize;
2085 uc->product_desc = "QEMU USB MTP";
2086 uc->usb_desc = &desc;
2087 uc->cancel_packet = usb_mtp_cancel_packet;
2088 uc->handle_attach = usb_desc_attach;
2089 uc->handle_reset = usb_mtp_handle_reset;
2090 uc->handle_control = usb_mtp_handle_control;
2091 uc->handle_data = usb_mtp_handle_data;
2092 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
2093 dc->desc = "USB Media Transfer Protocol device";
2094 dc->fw_name = "mtp";
2095 dc->vmsd = &vmstate_usb_mtp;
2096 dc->props = mtp_properties;
2097}
2098
2099static TypeInfo mtp_info = {
2100 .name = TYPE_USB_MTP,
2101 .parent = TYPE_USB_DEVICE,
2102 .instance_size = sizeof(MTPState),
2103 .class_init = usb_mtp_class_initfn,
2104};
2105
2106static void usb_mtp_register_types(void)
2107{
2108 type_register_static(&mtp_info);
2109}
2110
2111type_init(usb_mtp_register_types)
2112
