Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Media Transfer Protocol implementation, backed by host filesystem. |
| 3 | * |
| 4 | * Copyright Red Hat, Inc 2014 |
| 5 | * |
| 6 | * Author: |
| 7 | * Gerd Hoffmann <kraxel@redhat.com> |
| 8 | * |
| 9 | * This code is licensed under the GPL v2 or later. |
| 10 | */ |
| 11 | |
Peter Maydell | e532b2e | 2016-01-26 18:17:12 +0000 | [diff] [blame] | 12 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 13 | #include "qapi/error.h" |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 14 | #include <wchar.h> |
| 15 | #include <dirent.h> |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 16 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 17 | #include <sys/statvfs.h> |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 18 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 19 | #include <sys/inotify.h> |
| 20 | #include "qemu/main-loop.h" |
| 21 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 22 | |
| 23 | #include "qemu-common.h" |
| 24 | #include "qemu/iov.h" |
| 25 | #include "trace.h" |
| 26 | #include "hw/usb.h" |
| 27 | #include "hw/usb/desc.h" |
| 28 | |
| 29 | /* ----------------------------------------------------------------------- */ |
| 30 | |
| 31 | enum mtp_container_type { |
| 32 | TYPE_COMMAND = 1, |
| 33 | TYPE_DATA = 2, |
| 34 | TYPE_RESPONSE = 3, |
| 35 | TYPE_EVENT = 4, |
| 36 | }; |
| 37 | |
| 38 | enum mtp_code { |
| 39 | /* command codes */ |
| 40 | CMD_GET_DEVICE_INFO = 0x1001, |
| 41 | CMD_OPEN_SESSION = 0x1002, |
| 42 | CMD_CLOSE_SESSION = 0x1003, |
| 43 | CMD_GET_STORAGE_IDS = 0x1004, |
| 44 | CMD_GET_STORAGE_INFO = 0x1005, |
| 45 | CMD_GET_NUM_OBJECTS = 0x1006, |
| 46 | CMD_GET_OBJECT_HANDLES = 0x1007, |
| 47 | CMD_GET_OBJECT_INFO = 0x1008, |
| 48 | CMD_GET_OBJECT = 0x1009, |
| 49 | CMD_GET_PARTIAL_OBJECT = 0x101b, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 50 | CMD_GET_OBJECT_PROPS_SUPPORTED = 0x9801, |
| 51 | CMD_GET_OBJECT_PROP_DESC = 0x9802, |
| 52 | CMD_GET_OBJECT_PROP_VALUE = 0x9803, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 53 | |
| 54 | /* response codes */ |
| 55 | RES_OK = 0x2001, |
Gerd Hoffmann | 22513a9 | 2014-05-20 13:06:55 +0200 | [diff] [blame] | 56 | RES_GENERAL_ERROR = 0x2002, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 57 | RES_SESSION_NOT_OPEN = 0x2003, |
| 58 | RES_INVALID_TRANSACTION_ID = 0x2004, |
| 59 | RES_OPERATION_NOT_SUPPORTED = 0x2005, |
| 60 | RES_PARAMETER_NOT_SUPPORTED = 0x2006, |
Gerd Hoffmann | 8ebb876 | 2014-04-25 12:37:49 +0200 | [diff] [blame] | 61 | RES_INCOMPLETE_TRANSFER = 0x2007, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 62 | RES_INVALID_STORAGE_ID = 0x2008, |
| 63 | RES_INVALID_OBJECT_HANDLE = 0x2009, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 64 | RES_INVALID_OBJECT_FORMAT_CODE = 0x200b, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 65 | RES_SPEC_BY_FORMAT_UNSUPPORTED = 0x2014, |
| 66 | RES_INVALID_PARENT_OBJECT = 0x201a, |
| 67 | RES_INVALID_PARAMETER = 0x201d, |
| 68 | RES_SESSION_ALREADY_OPEN = 0x201e, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 69 | RES_INVALID_OBJECT_PROP_CODE = 0xA801, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 70 | |
| 71 | /* format codes */ |
| 72 | FMT_UNDEFINED_OBJECT = 0x3000, |
| 73 | FMT_ASSOCIATION = 0x3001, |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 74 | |
| 75 | /* event codes */ |
| 76 | EVT_OBJ_ADDED = 0x4002, |
| 77 | EVT_OBJ_REMOVED = 0x4003, |
| 78 | EVT_OBJ_INFO_CHANGED = 0x4007, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 79 | |
| 80 | /* object properties */ |
| 81 | PROP_STORAGE_ID = 0xDC01, |
| 82 | PROP_OBJECT_FORMAT = 0xDC02, |
| 83 | PROP_OBJECT_COMPRESSED_SIZE = 0xDC04, |
| 84 | PROP_PARENT_OBJECT = 0xDC0B, |
| 85 | PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER = 0xDC41, |
| 86 | PROP_NAME = 0xDC44, |
| 87 | }; |
| 88 | |
| 89 | enum mtp_data_type { |
| 90 | DATA_TYPE_UINT16 = 0x0004, |
| 91 | DATA_TYPE_UINT32 = 0x0006, |
| 92 | DATA_TYPE_UINT64 = 0x0008, |
| 93 | DATA_TYPE_UINT128 = 0x000a, |
| 94 | DATA_TYPE_STRING = 0xffff, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 95 | }; |
| 96 | |
| 97 | typedef struct { |
| 98 | uint32_t length; |
| 99 | uint16_t type; |
| 100 | uint16_t code; |
| 101 | uint32_t trans; |
| 102 | } QEMU_PACKED mtp_container; |
| 103 | |
| 104 | /* ----------------------------------------------------------------------- */ |
| 105 | |
| 106 | typedef struct MTPState MTPState; |
| 107 | typedef struct MTPControl MTPControl; |
| 108 | typedef struct MTPData MTPData; |
| 109 | typedef struct MTPObject MTPObject; |
| 110 | |
| 111 | enum { |
| 112 | EP_DATA_IN = 1, |
| 113 | EP_DATA_OUT, |
| 114 | EP_EVENT, |
| 115 | }; |
| 116 | |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 117 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 118 | typedef struct MTPMonEntry MTPMonEntry; |
| 119 | |
| 120 | struct MTPMonEntry { |
| 121 | uint32_t event; |
| 122 | uint32_t handle; |
| 123 | |
| 124 | QTAILQ_ENTRY(MTPMonEntry) next; |
| 125 | }; |
| 126 | #endif |
| 127 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 128 | struct MTPControl { |
| 129 | uint16_t code; |
| 130 | uint32_t trans; |
| 131 | int argc; |
| 132 | uint32_t argv[5]; |
| 133 | }; |
| 134 | |
| 135 | struct MTPData { |
| 136 | uint16_t code; |
| 137 | uint32_t trans; |
Isaac Lozano | 8a5865f | 2016-08-06 03:06:01 -0700 | [diff] [blame] | 138 | uint64_t offset; |
| 139 | uint64_t length; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 140 | uint32_t alloc; |
| 141 | uint8_t *data; |
| 142 | bool first; |
| 143 | int fd; |
| 144 | }; |
| 145 | |
| 146 | struct MTPObject { |
| 147 | uint32_t handle; |
| 148 | uint16_t format; |
| 149 | char *name; |
| 150 | char *path; |
| 151 | struct stat stat; |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 152 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 153 | /* inotify watch cookie */ |
| 154 | int watchfd; |
| 155 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 156 | MTPObject *parent; |
Gerd Hoffmann | 36084d7 | 2014-05-20 12:54:08 +0200 | [diff] [blame] | 157 | uint32_t nchildren; |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 158 | QLIST_HEAD(, MTPObject) children; |
| 159 | QLIST_ENTRY(MTPObject) list; |
Gerd Hoffmann | 36084d7 | 2014-05-20 12:54:08 +0200 | [diff] [blame] | 160 | bool have_children; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 161 | QTAILQ_ENTRY(MTPObject) next; |
| 162 | }; |
| 163 | |
| 164 | struct MTPState { |
| 165 | USBDevice dev; |
| 166 | char *root; |
| 167 | char *desc; |
| 168 | uint32_t flags; |
| 169 | |
| 170 | MTPData *data_in; |
| 171 | MTPData *data_out; |
| 172 | MTPControl *result; |
| 173 | uint32_t session; |
| 174 | uint32_t next_handle; |
| 175 | |
| 176 | QTAILQ_HEAD(, MTPObject) objects; |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 177 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 178 | /* inotify descriptor */ |
| 179 | int inotifyfd; |
| 180 | QTAILQ_HEAD(events, MTPMonEntry) events; |
| 181 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 182 | }; |
| 183 | |
Gonglei | 7c03a89 | 2015-05-06 20:55:28 +0800 | [diff] [blame] | 184 | #define TYPE_USB_MTP "usb-mtp" |
| 185 | #define USB_MTP(obj) OBJECT_CHECK(MTPState, (obj), TYPE_USB_MTP) |
| 186 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 187 | #define QEMU_STORAGE_ID 0x00010001 |
| 188 | |
| 189 | #define MTP_FLAG_WRITABLE 0 |
| 190 | |
| 191 | #define FLAG_SET(_mtp, _flag) ((_mtp)->flags & (1 << (_flag))) |
| 192 | |
| 193 | /* ----------------------------------------------------------------------- */ |
| 194 | |
| 195 | #define MTP_MANUFACTURER "QEMU" |
| 196 | #define MTP_PRODUCT "QEMU filesharing" |
| 197 | |
| 198 | enum { |
| 199 | STR_MANUFACTURER = 1, |
| 200 | STR_PRODUCT, |
| 201 | STR_SERIALNUMBER, |
Gerd Hoffmann | 13d5412 | 2014-07-01 17:49:25 +0200 | [diff] [blame] | 202 | STR_MTP, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 203 | STR_CONFIG_FULL, |
| 204 | STR_CONFIG_HIGH, |
| 205 | STR_CONFIG_SUPER, |
| 206 | }; |
| 207 | |
| 208 | static const USBDescStrings desc_strings = { |
| 209 | [STR_MANUFACTURER] = MTP_MANUFACTURER, |
| 210 | [STR_PRODUCT] = MTP_PRODUCT, |
| 211 | [STR_SERIALNUMBER] = "34617", |
Gerd Hoffmann | 13d5412 | 2014-07-01 17:49:25 +0200 | [diff] [blame] | 212 | [STR_MTP] = "MTP", |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 213 | [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", |
| 214 | [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", |
| 215 | [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)", |
| 216 | }; |
| 217 | |
| 218 | static const USBDescIface desc_iface_full = { |
| 219 | .bInterfaceNumber = 0, |
| 220 | .bNumEndpoints = 3, |
| 221 | .bInterfaceClass = USB_CLASS_STILL_IMAGE, |
| 222 | .bInterfaceSubClass = 0x01, |
| 223 | .bInterfaceProtocol = 0x01, |
Gerd Hoffmann | 13d5412 | 2014-07-01 17:49:25 +0200 | [diff] [blame] | 224 | .iInterface = STR_MTP, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 225 | .eps = (USBDescEndpoint[]) { |
| 226 | { |
| 227 | .bEndpointAddress = USB_DIR_IN | EP_DATA_IN, |
| 228 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
| 229 | .wMaxPacketSize = 64, |
| 230 | },{ |
| 231 | .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT, |
| 232 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
| 233 | .wMaxPacketSize = 64, |
| 234 | },{ |
| 235 | .bEndpointAddress = USB_DIR_IN | EP_EVENT, |
| 236 | .bmAttributes = USB_ENDPOINT_XFER_INT, |
Bandan Das | 93d592e | 2015-11-23 16:37:05 -0500 | [diff] [blame] | 237 | .wMaxPacketSize = 64, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 238 | .bInterval = 0x0a, |
| 239 | }, |
| 240 | } |
| 241 | }; |
| 242 | |
| 243 | static const USBDescDevice desc_device_full = { |
| 244 | .bcdUSB = 0x0200, |
| 245 | .bMaxPacketSize0 = 8, |
| 246 | .bNumConfigurations = 1, |
| 247 | .confs = (USBDescConfig[]) { |
| 248 | { |
| 249 | .bNumInterfaces = 1, |
| 250 | .bConfigurationValue = 1, |
| 251 | .iConfiguration = STR_CONFIG_FULL, |
| 252 | .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP, |
| 253 | .bMaxPower = 2, |
| 254 | .nif = 1, |
| 255 | .ifs = &desc_iface_full, |
| 256 | }, |
| 257 | }, |
| 258 | }; |
| 259 | |
| 260 | static const USBDescIface desc_iface_high = { |
| 261 | .bInterfaceNumber = 0, |
| 262 | .bNumEndpoints = 3, |
| 263 | .bInterfaceClass = USB_CLASS_STILL_IMAGE, |
| 264 | .bInterfaceSubClass = 0x01, |
| 265 | .bInterfaceProtocol = 0x01, |
Gerd Hoffmann | 13d5412 | 2014-07-01 17:49:25 +0200 | [diff] [blame] | 266 | .iInterface = STR_MTP, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 267 | .eps = (USBDescEndpoint[]) { |
| 268 | { |
| 269 | .bEndpointAddress = USB_DIR_IN | EP_DATA_IN, |
| 270 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
| 271 | .wMaxPacketSize = 512, |
| 272 | },{ |
| 273 | .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT, |
| 274 | .bmAttributes = USB_ENDPOINT_XFER_BULK, |
| 275 | .wMaxPacketSize = 512, |
| 276 | },{ |
| 277 | .bEndpointAddress = USB_DIR_IN | EP_EVENT, |
| 278 | .bmAttributes = USB_ENDPOINT_XFER_INT, |
Bandan Das | 93d592e | 2015-11-23 16:37:05 -0500 | [diff] [blame] | 279 | .wMaxPacketSize = 64, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 280 | .bInterval = 0x0a, |
| 281 | }, |
| 282 | } |
| 283 | }; |
| 284 | |
| 285 | static const USBDescDevice desc_device_high = { |
| 286 | .bcdUSB = 0x0200, |
| 287 | .bMaxPacketSize0 = 64, |
| 288 | .bNumConfigurations = 1, |
| 289 | .confs = (USBDescConfig[]) { |
| 290 | { |
| 291 | .bNumInterfaces = 1, |
| 292 | .bConfigurationValue = 1, |
| 293 | .iConfiguration = STR_CONFIG_HIGH, |
| 294 | .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP, |
| 295 | .bMaxPower = 2, |
| 296 | .nif = 1, |
| 297 | .ifs = &desc_iface_high, |
| 298 | }, |
| 299 | }, |
| 300 | }; |
| 301 | |
| 302 | static const USBDescMSOS desc_msos = { |
| 303 | .CompatibleID = "MTP", |
| 304 | .SelectiveSuspendEnabled = true, |
| 305 | }; |
| 306 | |
| 307 | static const USBDesc desc = { |
| 308 | .id = { |
| 309 | .idVendor = 0x46f4, /* CRC16() of "QEMU" */ |
| 310 | .idProduct = 0x0004, |
| 311 | .bcdDevice = 0, |
| 312 | .iManufacturer = STR_MANUFACTURER, |
| 313 | .iProduct = STR_PRODUCT, |
| 314 | .iSerialNumber = STR_SERIALNUMBER, |
| 315 | }, |
| 316 | .full = &desc_device_full, |
| 317 | .high = &desc_device_high, |
| 318 | .str = desc_strings, |
| 319 | .msos = &desc_msos, |
| 320 | }; |
| 321 | |
| 322 | /* ----------------------------------------------------------------------- */ |
| 323 | |
| 324 | static MTPObject *usb_mtp_object_alloc(MTPState *s, uint32_t handle, |
| 325 | MTPObject *parent, char *name) |
| 326 | { |
| 327 | MTPObject *o = g_new0(MTPObject, 1); |
| 328 | |
| 329 | if (name[0] == '.') { |
| 330 | goto ignore; |
| 331 | } |
| 332 | |
| 333 | o->handle = handle; |
| 334 | o->parent = parent; |
| 335 | o->name = g_strdup(name); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 336 | if (parent == NULL) { |
| 337 | o->path = g_strdup(name); |
| 338 | } else { |
| 339 | o->path = g_strdup_printf("%s/%s", parent->path, name); |
| 340 | } |
| 341 | |
| 342 | if (lstat(o->path, &o->stat) != 0) { |
| 343 | goto ignore; |
| 344 | } |
| 345 | if (S_ISREG(o->stat.st_mode)) { |
| 346 | o->format = FMT_UNDEFINED_OBJECT; |
| 347 | } else if (S_ISDIR(o->stat.st_mode)) { |
| 348 | o->format = FMT_ASSOCIATION; |
| 349 | } else { |
| 350 | goto ignore; |
| 351 | } |
| 352 | |
| 353 | if (access(o->path, R_OK) != 0) { |
| 354 | goto ignore; |
| 355 | } |
| 356 | |
Gerd Hoffmann | 1c76551 | 2014-04-25 11:51:50 +0200 | [diff] [blame] | 357 | trace_usb_mtp_object_alloc(s->dev.addr, o->handle, o->path); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 358 | |
| 359 | QTAILQ_INSERT_TAIL(&s->objects, o, next); |
| 360 | return o; |
| 361 | |
| 362 | ignore: |
| 363 | g_free(o->name); |
| 364 | g_free(o->path); |
| 365 | g_free(o); |
| 366 | return NULL; |
| 367 | } |
| 368 | |
| 369 | static void usb_mtp_object_free(MTPState *s, MTPObject *o) |
| 370 | { |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 371 | MTPObject *iter; |
| 372 | |
| 373 | if (!o) { |
| 374 | return; |
| 375 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 376 | |
Gerd Hoffmann | 1c76551 | 2014-04-25 11:51:50 +0200 | [diff] [blame] | 377 | trace_usb_mtp_object_free(s->dev.addr, o->handle, o->path); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 378 | |
| 379 | QTAILQ_REMOVE(&s->objects, o, next); |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 380 | if (o->parent) { |
| 381 | QLIST_REMOVE(o, list); |
| 382 | o->parent->nchildren--; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 383 | } |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 384 | |
| 385 | while (!QLIST_EMPTY(&o->children)) { |
| 386 | iter = QLIST_FIRST(&o->children); |
| 387 | usb_mtp_object_free(s, iter); |
| 388 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 389 | g_free(o->name); |
| 390 | g_free(o->path); |
| 391 | g_free(o); |
| 392 | } |
| 393 | |
| 394 | static MTPObject *usb_mtp_object_lookup(MTPState *s, uint32_t handle) |
| 395 | { |
| 396 | MTPObject *o; |
| 397 | |
| 398 | QTAILQ_FOREACH(o, &s->objects, next) { |
| 399 | if (o->handle == handle) { |
| 400 | return o; |
| 401 | } |
| 402 | } |
| 403 | return NULL; |
| 404 | } |
| 405 | |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 406 | static MTPObject *usb_mtp_add_child(MTPState *s, MTPObject *o, |
| 407 | char *name) |
| 408 | { |
| 409 | MTPObject *child = |
| 410 | usb_mtp_object_alloc(s, s->next_handle++, o, name); |
| 411 | |
| 412 | if (child) { |
| 413 | trace_usb_mtp_add_child(s->dev.addr, child->handle, child->path); |
| 414 | QLIST_INSERT_HEAD(&o->children, child, list); |
| 415 | o->nchildren++; |
| 416 | |
| 417 | if (child->format == FMT_ASSOCIATION) { |
| 418 | QLIST_INIT(&child->children); |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | return child; |
| 423 | } |
| 424 | |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 425 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 426 | static MTPObject *usb_mtp_object_lookup_name(MTPObject *parent, |
| 427 | char *name, int len) |
| 428 | { |
| 429 | MTPObject *iter; |
| 430 | |
| 431 | QLIST_FOREACH(iter, &parent->children, list) { |
| 432 | if (strncmp(iter->name, name, len) == 0) { |
| 433 | return iter; |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | return NULL; |
| 438 | } |
| 439 | |
| 440 | static MTPObject *usb_mtp_object_lookup_wd(MTPState *s, int wd) |
| 441 | { |
| 442 | MTPObject *iter; |
| 443 | |
| 444 | QTAILQ_FOREACH(iter, &s->objects, next) { |
| 445 | if (iter->watchfd == wd) { |
| 446 | return iter; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | return NULL; |
| 451 | } |
| 452 | |
| 453 | static void inotify_watchfn(void *arg) |
| 454 | { |
| 455 | MTPState *s = arg; |
| 456 | ssize_t bytes; |
| 457 | /* From the man page: atleast one event can be read */ |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 458 | int pos; |
Peter Xu | f34d57d | 2016-03-09 14:07:20 +0800 | [diff] [blame] | 459 | char buf[sizeof(struct inotify_event) + NAME_MAX + 1]; |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 460 | |
| 461 | for (;;) { |
Peter Xu | f34d57d | 2016-03-09 14:07:20 +0800 | [diff] [blame] | 462 | bytes = read(s->inotifyfd, buf, sizeof(buf)); |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 463 | pos = 0; |
| 464 | |
| 465 | if (bytes <= 0) { |
| 466 | /* Better luck next time */ |
| 467 | return; |
| 468 | } |
| 469 | |
| 470 | /* |
| 471 | * TODO: Ignore initiator initiated events. |
| 472 | * For now we are good because the store is RO |
| 473 | */ |
| 474 | while (bytes > 0) { |
| 475 | char *p = buf + pos; |
| 476 | struct inotify_event *event = (struct inotify_event *)p; |
| 477 | int watchfd = 0; |
| 478 | uint32_t mask = event->mask & (IN_CREATE | IN_DELETE | |
| 479 | IN_MODIFY | IN_IGNORED); |
| 480 | MTPObject *parent = usb_mtp_object_lookup_wd(s, event->wd); |
| 481 | MTPMonEntry *entry = NULL; |
| 482 | MTPObject *o; |
| 483 | |
| 484 | pos = pos + sizeof(struct inotify_event) + event->len; |
| 485 | bytes = bytes - pos; |
| 486 | |
| 487 | if (!parent) { |
| 488 | continue; |
| 489 | } |
| 490 | |
| 491 | switch (mask) { |
| 492 | case IN_CREATE: |
| 493 | if (usb_mtp_object_lookup_name |
| 494 | (parent, event->name, event->len)) { |
| 495 | /* Duplicate create event */ |
| 496 | continue; |
| 497 | } |
| 498 | entry = g_new0(MTPMonEntry, 1); |
| 499 | entry->handle = s->next_handle; |
| 500 | entry->event = EVT_OBJ_ADDED; |
| 501 | o = usb_mtp_add_child(s, parent, event->name); |
| 502 | if (!o) { |
| 503 | g_free(entry); |
| 504 | continue; |
| 505 | } |
| 506 | o->watchfd = watchfd; |
| 507 | trace_usb_mtp_inotify_event(s->dev.addr, event->name, |
| 508 | event->mask, "Obj Added"); |
| 509 | break; |
| 510 | |
| 511 | case IN_DELETE: |
| 512 | /* |
| 513 | * The kernel issues a IN_IGNORED event |
| 514 | * when a dir containing a watchpoint is |
| 515 | * deleted, so we don't have to delete the |
| 516 | * watchpoint |
| 517 | */ |
| 518 | o = usb_mtp_object_lookup_name(parent, event->name, event->len); |
| 519 | if (!o) { |
| 520 | continue; |
| 521 | } |
| 522 | entry = g_new0(MTPMonEntry, 1); |
| 523 | entry->handle = o->handle; |
| 524 | entry->event = EVT_OBJ_REMOVED; |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 525 | trace_usb_mtp_inotify_event(s->dev.addr, o->path, |
| 526 | event->mask, "Obj Deleted"); |
Bandan Das | ec93e15 | 2015-12-23 14:39:47 +0530 | [diff] [blame] | 527 | usb_mtp_object_free(s, o); |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 528 | break; |
| 529 | |
| 530 | case IN_MODIFY: |
| 531 | o = usb_mtp_object_lookup_name(parent, event->name, event->len); |
| 532 | if (!o) { |
| 533 | continue; |
| 534 | } |
| 535 | entry = g_new0(MTPMonEntry, 1); |
| 536 | entry->handle = o->handle; |
| 537 | entry->event = EVT_OBJ_INFO_CHANGED; |
| 538 | trace_usb_mtp_inotify_event(s->dev.addr, o->path, |
| 539 | event->mask, "Obj Modified"); |
| 540 | break; |
| 541 | |
| 542 | case IN_IGNORED: |
| 543 | o = usb_mtp_object_lookup_name(parent, event->name, event->len); |
| 544 | trace_usb_mtp_inotify_event(s->dev.addr, o->path, |
| 545 | event->mask, "Obj ignored"); |
| 546 | break; |
| 547 | |
| 548 | default: |
| 549 | fprintf(stderr, "usb-mtp: failed to parse inotify event\n"); |
| 550 | continue; |
| 551 | } |
| 552 | |
| 553 | if (entry) { |
| 554 | QTAILQ_INSERT_HEAD(&s->events, entry, next); |
| 555 | } |
| 556 | } |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | static int usb_mtp_inotify_init(MTPState *s) |
| 561 | { |
| 562 | int fd; |
| 563 | |
| 564 | fd = inotify_init1(IN_NONBLOCK); |
| 565 | if (fd == -1) { |
| 566 | return 1; |
| 567 | } |
| 568 | |
| 569 | QTAILQ_INIT(&s->events); |
| 570 | s->inotifyfd = fd; |
| 571 | |
| 572 | qemu_set_fd_handler(fd, inotify_watchfn, NULL, s); |
| 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | |
| 577 | static void usb_mtp_inotify_cleanup(MTPState *s) |
| 578 | { |
Bandan Das | c22d5dc | 2015-12-23 14:39:46 +0530 | [diff] [blame] | 579 | MTPMonEntry *e, *p; |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 580 | |
| 581 | if (!s->inotifyfd) { |
| 582 | return; |
| 583 | } |
| 584 | |
| 585 | qemu_set_fd_handler(s->inotifyfd, NULL, NULL, s); |
| 586 | close(s->inotifyfd); |
| 587 | |
Bandan Das | c22d5dc | 2015-12-23 14:39:46 +0530 | [diff] [blame] | 588 | QTAILQ_FOREACH_SAFE(e, &s->events, next, p) { |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 589 | QTAILQ_REMOVE(&s->events, e, next); |
| 590 | g_free(e); |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | static int usb_mtp_add_watch(int inotifyfd, char *path) |
| 595 | { |
| 596 | uint32_t mask = IN_CREATE | IN_DELETE | IN_MODIFY | |
| 597 | IN_ISDIR; |
| 598 | |
| 599 | return inotify_add_watch(inotifyfd, path, mask); |
| 600 | } |
| 601 | #endif |
| 602 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 603 | static void usb_mtp_object_readdir(MTPState *s, MTPObject *o) |
| 604 | { |
| 605 | struct dirent *entry; |
| 606 | DIR *dir; |
| 607 | |
Gerd Hoffmann | 36084d7 | 2014-05-20 12:54:08 +0200 | [diff] [blame] | 608 | if (o->have_children) { |
| 609 | return; |
| 610 | } |
| 611 | o->have_children = true; |
| 612 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 613 | dir = opendir(o->path); |
| 614 | if (!dir) { |
| 615 | return; |
| 616 | } |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 617 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 618 | int watchfd = usb_mtp_add_watch(s->inotifyfd, o->path); |
| 619 | if (watchfd == -1) { |
| 620 | fprintf(stderr, "usb-mtp: failed to add watch for %s\n", o->path); |
| 621 | } else { |
| 622 | trace_usb_mtp_inotify_event(s->dev.addr, o->path, |
| 623 | 0, "Watch Added"); |
| 624 | o->watchfd = watchfd; |
| 625 | } |
| 626 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 627 | while ((entry = readdir(dir)) != NULL) { |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 628 | usb_mtp_add_child(s, o, entry->d_name); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 629 | } |
| 630 | closedir(dir); |
| 631 | } |
| 632 | |
| 633 | /* ----------------------------------------------------------------------- */ |
| 634 | |
| 635 | static MTPData *usb_mtp_data_alloc(MTPControl *c) |
| 636 | { |
| 637 | MTPData *data = g_new0(MTPData, 1); |
| 638 | |
| 639 | data->code = c->code; |
| 640 | data->trans = c->trans; |
| 641 | data->fd = -1; |
| 642 | data->first = true; |
| 643 | return data; |
| 644 | } |
| 645 | |
| 646 | static void usb_mtp_data_free(MTPData *data) |
| 647 | { |
| 648 | if (data == NULL) { |
| 649 | return; |
| 650 | } |
| 651 | if (data->fd != -1) { |
| 652 | close(data->fd); |
| 653 | } |
| 654 | g_free(data->data); |
| 655 | g_free(data); |
| 656 | } |
| 657 | |
| 658 | static void usb_mtp_realloc(MTPData *data, uint32_t bytes) |
| 659 | { |
| 660 | if (data->length + bytes <= data->alloc) { |
| 661 | return; |
| 662 | } |
| 663 | data->alloc = (data->length + bytes + 0xff) & ~0xff; |
| 664 | data->data = g_realloc(data->data, data->alloc); |
| 665 | } |
| 666 | |
| 667 | static void usb_mtp_add_u8(MTPData *data, uint8_t val) |
| 668 | { |
| 669 | usb_mtp_realloc(data, 1); |
| 670 | data->data[data->length++] = val; |
| 671 | } |
| 672 | |
| 673 | static void usb_mtp_add_u16(MTPData *data, uint16_t val) |
| 674 | { |
| 675 | usb_mtp_realloc(data, 2); |
| 676 | data->data[data->length++] = (val >> 0) & 0xff; |
| 677 | data->data[data->length++] = (val >> 8) & 0xff; |
| 678 | } |
| 679 | |
| 680 | static void usb_mtp_add_u32(MTPData *data, uint32_t val) |
| 681 | { |
| 682 | usb_mtp_realloc(data, 4); |
| 683 | data->data[data->length++] = (val >> 0) & 0xff; |
| 684 | data->data[data->length++] = (val >> 8) & 0xff; |
| 685 | data->data[data->length++] = (val >> 16) & 0xff; |
| 686 | data->data[data->length++] = (val >> 24) & 0xff; |
| 687 | } |
| 688 | |
| 689 | static void usb_mtp_add_u64(MTPData *data, uint64_t val) |
| 690 | { |
Gerd Hoffmann | ada435f | 2014-04-25 11:53:22 +0200 | [diff] [blame] | 691 | usb_mtp_realloc(data, 8); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 692 | data->data[data->length++] = (val >> 0) & 0xff; |
| 693 | data->data[data->length++] = (val >> 8) & 0xff; |
| 694 | data->data[data->length++] = (val >> 16) & 0xff; |
| 695 | data->data[data->length++] = (val >> 24) & 0xff; |
| 696 | data->data[data->length++] = (val >> 32) & 0xff; |
| 697 | data->data[data->length++] = (val >> 40) & 0xff; |
| 698 | data->data[data->length++] = (val >> 48) & 0xff; |
Gerd Hoffmann | ada435f | 2014-04-25 11:53:22 +0200 | [diff] [blame] | 699 | data->data[data->length++] = (val >> 56) & 0xff; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 700 | } |
| 701 | |
| 702 | static void usb_mtp_add_u16_array(MTPData *data, uint32_t len, |
| 703 | const uint16_t *vals) |
| 704 | { |
| 705 | int i; |
| 706 | |
| 707 | usb_mtp_add_u32(data, len); |
| 708 | for (i = 0; i < len; i++) { |
| 709 | usb_mtp_add_u16(data, vals[i]); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | static void usb_mtp_add_u32_array(MTPData *data, uint32_t len, |
| 714 | const uint32_t *vals) |
| 715 | { |
| 716 | int i; |
| 717 | |
| 718 | usb_mtp_add_u32(data, len); |
| 719 | for (i = 0; i < len; i++) { |
| 720 | usb_mtp_add_u32(data, vals[i]); |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | static void usb_mtp_add_wstr(MTPData *data, const wchar_t *str) |
| 725 | { |
| 726 | uint32_t len = wcslen(str); |
| 727 | int i; |
| 728 | |
| 729 | if (len > 0) { |
| 730 | len++; /* include terminating L'\0' */ |
| 731 | } |
| 732 | |
| 733 | usb_mtp_add_u8(data, len); |
| 734 | for (i = 0; i < len; i++) { |
| 735 | usb_mtp_add_u16(data, str[i]); |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | static void usb_mtp_add_str(MTPData *data, const char *str) |
| 740 | { |
| 741 | uint32_t len = strlen(str)+1; |
Peter Xu | e3d60bc | 2016-03-10 10:35:24 +0800 | [diff] [blame] | 742 | wchar_t *wstr = g_new(wchar_t, len); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 743 | size_t ret; |
| 744 | |
| 745 | ret = mbstowcs(wstr, str, len); |
| 746 | if (ret == -1) { |
| 747 | usb_mtp_add_wstr(data, L"Oops"); |
| 748 | } else { |
| 749 | usb_mtp_add_wstr(data, wstr); |
| 750 | } |
Peter Xu | e3d60bc | 2016-03-10 10:35:24 +0800 | [diff] [blame] | 751 | |
| 752 | g_free(wstr); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 753 | } |
| 754 | |
| 755 | static void usb_mtp_add_time(MTPData *data, time_t time) |
| 756 | { |
| 757 | char buf[16]; |
| 758 | struct tm tm; |
| 759 | |
| 760 | gmtime_r(&time, &tm); |
| 761 | strftime(buf, sizeof(buf), "%Y%m%dT%H%M%S", &tm); |
| 762 | usb_mtp_add_str(data, buf); |
| 763 | } |
| 764 | |
| 765 | /* ----------------------------------------------------------------------- */ |
| 766 | |
| 767 | static void usb_mtp_queue_result(MTPState *s, uint16_t code, uint32_t trans, |
| 768 | int argc, uint32_t arg0, uint32_t arg1) |
| 769 | { |
| 770 | MTPControl *c = g_new0(MTPControl, 1); |
| 771 | |
| 772 | c->code = code; |
| 773 | c->trans = trans; |
| 774 | c->argc = argc; |
| 775 | if (argc > 0) { |
| 776 | c->argv[0] = arg0; |
| 777 | } |
| 778 | if (argc > 1) { |
| 779 | c->argv[1] = arg1; |
| 780 | } |
| 781 | |
| 782 | assert(s->result == NULL); |
| 783 | s->result = c; |
| 784 | } |
| 785 | |
| 786 | /* ----------------------------------------------------------------------- */ |
| 787 | |
| 788 | static MTPData *usb_mtp_get_device_info(MTPState *s, MTPControl *c) |
| 789 | { |
| 790 | static const uint16_t ops[] = { |
| 791 | CMD_GET_DEVICE_INFO, |
| 792 | CMD_OPEN_SESSION, |
| 793 | CMD_CLOSE_SESSION, |
| 794 | CMD_GET_STORAGE_IDS, |
| 795 | CMD_GET_STORAGE_INFO, |
| 796 | CMD_GET_NUM_OBJECTS, |
| 797 | CMD_GET_OBJECT_HANDLES, |
| 798 | CMD_GET_OBJECT_INFO, |
| 799 | CMD_GET_OBJECT, |
| 800 | CMD_GET_PARTIAL_OBJECT, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 801 | CMD_GET_OBJECT_PROPS_SUPPORTED, |
| 802 | CMD_GET_OBJECT_PROP_DESC, |
| 803 | CMD_GET_OBJECT_PROP_VALUE, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 804 | }; |
| 805 | static const uint16_t fmt[] = { |
| 806 | FMT_UNDEFINED_OBJECT, |
| 807 | FMT_ASSOCIATION, |
| 808 | }; |
| 809 | MTPData *d = usb_mtp_data_alloc(c); |
| 810 | |
| 811 | trace_usb_mtp_op_get_device_info(s->dev.addr); |
| 812 | |
Gerd Hoffmann | f7eaed8 | 2014-04-25 11:55:32 +0200 | [diff] [blame] | 813 | usb_mtp_add_u16(d, 100); |
Isaac Lozano | 1f66fe5 | 2016-04-17 04:29:53 -0700 | [diff] [blame] | 814 | usb_mtp_add_u32(d, 0x00000006); |
| 815 | usb_mtp_add_u16(d, 0x0064); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 816 | usb_mtp_add_wstr(d, L""); |
| 817 | usb_mtp_add_u16(d, 0x0000); |
| 818 | |
| 819 | usb_mtp_add_u16_array(d, ARRAY_SIZE(ops), ops); |
| 820 | usb_mtp_add_u16_array(d, 0, NULL); |
| 821 | usb_mtp_add_u16_array(d, 0, NULL); |
| 822 | usb_mtp_add_u16_array(d, 0, NULL); |
| 823 | usb_mtp_add_u16_array(d, ARRAY_SIZE(fmt), fmt); |
| 824 | |
| 825 | usb_mtp_add_wstr(d, L"" MTP_MANUFACTURER); |
| 826 | usb_mtp_add_wstr(d, L"" MTP_PRODUCT); |
| 827 | usb_mtp_add_wstr(d, L"0.1"); |
Gerd Hoffmann | 9e4eff5 | 2014-04-25 11:57:07 +0200 | [diff] [blame] | 828 | usb_mtp_add_wstr(d, L"0123456789abcdef0123456789abcdef"); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 829 | |
| 830 | return d; |
| 831 | } |
| 832 | |
| 833 | static MTPData *usb_mtp_get_storage_ids(MTPState *s, MTPControl *c) |
| 834 | { |
| 835 | static const uint32_t ids[] = { |
| 836 | QEMU_STORAGE_ID, |
| 837 | }; |
| 838 | MTPData *d = usb_mtp_data_alloc(c); |
| 839 | |
| 840 | trace_usb_mtp_op_get_storage_ids(s->dev.addr); |
| 841 | |
| 842 | usb_mtp_add_u32_array(d, ARRAY_SIZE(ids), ids); |
| 843 | |
| 844 | return d; |
| 845 | } |
| 846 | |
| 847 | static MTPData *usb_mtp_get_storage_info(MTPState *s, MTPControl *c) |
| 848 | { |
| 849 | MTPData *d = usb_mtp_data_alloc(c); |
| 850 | struct statvfs buf; |
| 851 | int rc; |
| 852 | |
| 853 | trace_usb_mtp_op_get_storage_info(s->dev.addr); |
| 854 | |
| 855 | if (FLAG_SET(s, MTP_FLAG_WRITABLE)) { |
| 856 | usb_mtp_add_u16(d, 0x0003); |
| 857 | usb_mtp_add_u16(d, 0x0002); |
| 858 | usb_mtp_add_u16(d, 0x0000); |
| 859 | } else { |
| 860 | usb_mtp_add_u16(d, 0x0001); |
| 861 | usb_mtp_add_u16(d, 0x0002); |
| 862 | usb_mtp_add_u16(d, 0x0001); |
| 863 | } |
| 864 | |
| 865 | rc = statvfs(s->root, &buf); |
| 866 | if (rc == 0) { |
| 867 | usb_mtp_add_u64(d, (uint64_t)buf.f_frsize * buf.f_blocks); |
| 868 | usb_mtp_add_u64(d, (uint64_t)buf.f_bavail * buf.f_blocks); |
| 869 | usb_mtp_add_u32(d, buf.f_ffree); |
| 870 | } else { |
| 871 | usb_mtp_add_u64(d, 0xffffffff); |
| 872 | usb_mtp_add_u64(d, 0xffffffff); |
| 873 | usb_mtp_add_u32(d, 0xffffffff); |
| 874 | } |
| 875 | |
| 876 | usb_mtp_add_str(d, s->desc); |
| 877 | usb_mtp_add_wstr(d, L"123456789abcdef"); |
| 878 | return d; |
| 879 | } |
| 880 | |
| 881 | static MTPData *usb_mtp_get_object_handles(MTPState *s, MTPControl *c, |
| 882 | MTPObject *o) |
| 883 | { |
| 884 | MTPData *d = usb_mtp_data_alloc(c); |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 885 | uint32_t i = 0, handles[o->nchildren]; |
| 886 | MTPObject *iter; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 887 | |
| 888 | trace_usb_mtp_op_get_object_handles(s->dev.addr, o->handle, o->path); |
| 889 | |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 890 | QLIST_FOREACH(iter, &o->children, list) { |
| 891 | handles[i++] = iter->handle; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 892 | } |
Bandan Das | 4c7a67f | 2015-11-23 16:37:02 -0500 | [diff] [blame] | 893 | assert(i == o->nchildren); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 894 | usb_mtp_add_u32_array(d, o->nchildren, handles); |
| 895 | |
| 896 | return d; |
| 897 | } |
| 898 | |
| 899 | static MTPData *usb_mtp_get_object_info(MTPState *s, MTPControl *c, |
| 900 | MTPObject *o) |
| 901 | { |
| 902 | MTPData *d = usb_mtp_data_alloc(c); |
| 903 | |
| 904 | trace_usb_mtp_op_get_object_info(s->dev.addr, o->handle, o->path); |
| 905 | |
| 906 | usb_mtp_add_u32(d, QEMU_STORAGE_ID); |
| 907 | usb_mtp_add_u16(d, o->format); |
| 908 | usb_mtp_add_u16(d, 0); |
Isaac Lozano | 8a5865f | 2016-08-06 03:06:01 -0700 | [diff] [blame] | 909 | |
| 910 | if (o->stat.st_size > 0xFFFFFFFF) { |
| 911 | usb_mtp_add_u32(d, 0xFFFFFFFF); |
| 912 | } else { |
| 913 | usb_mtp_add_u32(d, o->stat.st_size); |
| 914 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 915 | |
| 916 | usb_mtp_add_u16(d, 0); |
| 917 | usb_mtp_add_u32(d, 0); |
| 918 | usb_mtp_add_u32(d, 0); |
| 919 | usb_mtp_add_u32(d, 0); |
| 920 | usb_mtp_add_u32(d, 0); |
| 921 | usb_mtp_add_u32(d, 0); |
| 922 | usb_mtp_add_u32(d, 0); |
| 923 | |
| 924 | if (o->parent) { |
| 925 | usb_mtp_add_u32(d, o->parent->handle); |
| 926 | } else { |
| 927 | usb_mtp_add_u32(d, 0); |
| 928 | } |
| 929 | if (o->format == FMT_ASSOCIATION) { |
| 930 | usb_mtp_add_u16(d, 0x0001); |
| 931 | usb_mtp_add_u32(d, 0x00000001); |
| 932 | usb_mtp_add_u32(d, 0); |
| 933 | } else { |
| 934 | usb_mtp_add_u16(d, 0); |
| 935 | usb_mtp_add_u32(d, 0); |
| 936 | usb_mtp_add_u32(d, 0); |
| 937 | } |
| 938 | |
| 939 | usb_mtp_add_str(d, o->name); |
| 940 | usb_mtp_add_time(d, o->stat.st_ctime); |
| 941 | usb_mtp_add_time(d, o->stat.st_mtime); |
| 942 | usb_mtp_add_wstr(d, L""); |
| 943 | |
| 944 | return d; |
| 945 | } |
| 946 | |
| 947 | static MTPData *usb_mtp_get_object(MTPState *s, MTPControl *c, |
| 948 | MTPObject *o) |
| 949 | { |
| 950 | MTPData *d = usb_mtp_data_alloc(c); |
| 951 | |
| 952 | trace_usb_mtp_op_get_object(s->dev.addr, o->handle, o->path); |
| 953 | |
| 954 | d->fd = open(o->path, O_RDONLY); |
| 955 | if (d->fd == -1) { |
Gerd Hoffmann | 2dc7fdf | 2014-04-25 12:01:55 +0200 | [diff] [blame] | 956 | usb_mtp_data_free(d); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 957 | return NULL; |
| 958 | } |
| 959 | d->length = o->stat.st_size; |
| 960 | d->alloc = 512; |
| 961 | d->data = g_malloc(d->alloc); |
| 962 | return d; |
| 963 | } |
| 964 | |
| 965 | static MTPData *usb_mtp_get_partial_object(MTPState *s, MTPControl *c, |
| 966 | MTPObject *o) |
| 967 | { |
| 968 | MTPData *d = usb_mtp_data_alloc(c); |
| 969 | off_t offset; |
| 970 | |
| 971 | trace_usb_mtp_op_get_partial_object(s->dev.addr, o->handle, o->path, |
| 972 | c->argv[1], c->argv[2]); |
| 973 | |
| 974 | d->fd = open(o->path, O_RDONLY); |
| 975 | if (d->fd == -1) { |
Gerd Hoffmann | 2dc7fdf | 2014-04-25 12:01:55 +0200 | [diff] [blame] | 976 | usb_mtp_data_free(d); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 977 | return NULL; |
| 978 | } |
| 979 | |
| 980 | offset = c->argv[1]; |
| 981 | if (offset > o->stat.st_size) { |
| 982 | offset = o->stat.st_size; |
| 983 | } |
Gerd Hoffmann | 68206d7 | 2014-05-20 13:02:26 +0200 | [diff] [blame] | 984 | if (lseek(d->fd, offset, SEEK_SET) < 0) { |
| 985 | usb_mtp_data_free(d); |
| 986 | return NULL; |
| 987 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 988 | |
| 989 | d->length = c->argv[2]; |
| 990 | if (d->length > o->stat.st_size - offset) { |
| 991 | d->length = o->stat.st_size - offset; |
| 992 | } |
| 993 | |
| 994 | return d; |
| 995 | } |
| 996 | |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 997 | static MTPData *usb_mtp_get_object_props_supported(MTPState *s, MTPControl *c) |
| 998 | { |
| 999 | static const uint16_t props[] = { |
| 1000 | PROP_STORAGE_ID, |
| 1001 | PROP_OBJECT_FORMAT, |
| 1002 | PROP_OBJECT_COMPRESSED_SIZE, |
| 1003 | PROP_PARENT_OBJECT, |
| 1004 | PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER, |
| 1005 | PROP_NAME, |
| 1006 | }; |
| 1007 | MTPData *d = usb_mtp_data_alloc(c); |
| 1008 | usb_mtp_add_u16_array(d, ARRAY_SIZE(props), props); |
| 1009 | |
| 1010 | return d; |
| 1011 | } |
| 1012 | |
| 1013 | static MTPData *usb_mtp_get_object_prop_desc(MTPState *s, MTPControl *c) |
| 1014 | { |
| 1015 | MTPData *d = usb_mtp_data_alloc(c); |
| 1016 | switch (c->argv[0]) { |
| 1017 | case PROP_STORAGE_ID: |
| 1018 | usb_mtp_add_u16(d, PROP_STORAGE_ID); |
| 1019 | usb_mtp_add_u16(d, DATA_TYPE_UINT32); |
| 1020 | usb_mtp_add_u8(d, 0x00); |
| 1021 | usb_mtp_add_u32(d, 0x00000000); |
| 1022 | usb_mtp_add_u32(d, 0x00000000); |
| 1023 | usb_mtp_add_u8(d, 0x00); |
| 1024 | break; |
| 1025 | case PROP_OBJECT_FORMAT: |
| 1026 | usb_mtp_add_u16(d, PROP_OBJECT_FORMAT); |
| 1027 | usb_mtp_add_u16(d, DATA_TYPE_UINT16); |
| 1028 | usb_mtp_add_u8(d, 0x00); |
| 1029 | usb_mtp_add_u16(d, 0x0000); |
| 1030 | usb_mtp_add_u32(d, 0x00000000); |
| 1031 | usb_mtp_add_u8(d, 0x00); |
| 1032 | break; |
| 1033 | case PROP_OBJECT_COMPRESSED_SIZE: |
| 1034 | usb_mtp_add_u16(d, PROP_OBJECT_COMPRESSED_SIZE); |
| 1035 | usb_mtp_add_u16(d, DATA_TYPE_UINT64); |
| 1036 | usb_mtp_add_u8(d, 0x00); |
| 1037 | usb_mtp_add_u64(d, 0x0000000000000000); |
| 1038 | usb_mtp_add_u32(d, 0x00000000); |
| 1039 | usb_mtp_add_u8(d, 0x00); |
| 1040 | break; |
| 1041 | case PROP_PARENT_OBJECT: |
| 1042 | usb_mtp_add_u16(d, PROP_PARENT_OBJECT); |
| 1043 | usb_mtp_add_u16(d, DATA_TYPE_UINT32); |
| 1044 | usb_mtp_add_u8(d, 0x00); |
| 1045 | usb_mtp_add_u32(d, 0x00000000); |
| 1046 | usb_mtp_add_u32(d, 0x00000000); |
| 1047 | usb_mtp_add_u8(d, 0x00); |
| 1048 | break; |
| 1049 | case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER: |
| 1050 | usb_mtp_add_u16(d, PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER); |
| 1051 | usb_mtp_add_u16(d, DATA_TYPE_UINT128); |
| 1052 | usb_mtp_add_u8(d, 0x00); |
| 1053 | usb_mtp_add_u64(d, 0x0000000000000000); |
| 1054 | usb_mtp_add_u64(d, 0x0000000000000000); |
| 1055 | usb_mtp_add_u32(d, 0x00000000); |
| 1056 | usb_mtp_add_u8(d, 0x00); |
| 1057 | break; |
| 1058 | case PROP_NAME: |
| 1059 | usb_mtp_add_u16(d, PROP_NAME); |
| 1060 | usb_mtp_add_u16(d, DATA_TYPE_STRING); |
| 1061 | usb_mtp_add_u8(d, 0x00); |
| 1062 | usb_mtp_add_u8(d, 0x00); |
| 1063 | usb_mtp_add_u32(d, 0x00000000); |
| 1064 | usb_mtp_add_u8(d, 0x00); |
| 1065 | break; |
| 1066 | default: |
| 1067 | usb_mtp_data_free(d); |
| 1068 | return NULL; |
| 1069 | } |
| 1070 | |
| 1071 | return d; |
| 1072 | } |
| 1073 | |
| 1074 | static MTPData *usb_mtp_get_object_prop_value(MTPState *s, MTPControl *c, |
| 1075 | MTPObject *o) |
| 1076 | { |
| 1077 | MTPData *d = usb_mtp_data_alloc(c); |
| 1078 | switch (c->argv[1]) { |
| 1079 | case PROP_STORAGE_ID: |
| 1080 | usb_mtp_add_u32(d, QEMU_STORAGE_ID); |
| 1081 | break; |
| 1082 | case PROP_OBJECT_FORMAT: |
| 1083 | usb_mtp_add_u16(d, o->format); |
| 1084 | break; |
| 1085 | case PROP_OBJECT_COMPRESSED_SIZE: |
| 1086 | usb_mtp_add_u64(d, o->stat.st_size); |
| 1087 | break; |
| 1088 | case PROP_PARENT_OBJECT: |
| 1089 | if (o->parent == NULL) { |
| 1090 | usb_mtp_add_u32(d, 0x00000000); |
| 1091 | } else { |
| 1092 | usb_mtp_add_u32(d, o->parent->handle); |
| 1093 | } |
| 1094 | break; |
| 1095 | case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER: |
Stefan Weil | b12227a | 2016-11-19 20:29:26 +0100 | [diff] [blame] | 1096 | /* Should be persistent between sessions, |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 1097 | * but using our objedt ID is "good enough" |
| 1098 | * for now */ |
| 1099 | usb_mtp_add_u64(d, 0x0000000000000000); |
| 1100 | usb_mtp_add_u64(d, o->handle); |
| 1101 | break; |
| 1102 | case PROP_NAME: |
| 1103 | usb_mtp_add_str(d, o->name); |
| 1104 | break; |
| 1105 | default: |
| 1106 | usb_mtp_data_free(d); |
| 1107 | return NULL; |
| 1108 | } |
| 1109 | |
| 1110 | return d; |
| 1111 | } |
| 1112 | |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1113 | static void usb_mtp_command(MTPState *s, MTPControl *c) |
| 1114 | { |
| 1115 | MTPData *data_in = NULL; |
| 1116 | MTPObject *o; |
| 1117 | uint32_t nres = 0, res0 = 0; |
| 1118 | |
| 1119 | /* sanity checks */ |
| 1120 | if (c->code >= CMD_CLOSE_SESSION && s->session == 0) { |
| 1121 | usb_mtp_queue_result(s, RES_SESSION_NOT_OPEN, |
| 1122 | c->trans, 0, 0, 0); |
| 1123 | return; |
| 1124 | } |
| 1125 | |
| 1126 | /* process commands */ |
| 1127 | switch (c->code) { |
| 1128 | case CMD_GET_DEVICE_INFO: |
| 1129 | data_in = usb_mtp_get_device_info(s, c); |
| 1130 | break; |
| 1131 | case CMD_OPEN_SESSION: |
| 1132 | if (s->session) { |
| 1133 | usb_mtp_queue_result(s, RES_SESSION_ALREADY_OPEN, |
| 1134 | c->trans, 1, s->session, 0); |
| 1135 | return; |
| 1136 | } |
| 1137 | if (c->argv[0] == 0) { |
| 1138 | usb_mtp_queue_result(s, RES_INVALID_PARAMETER, |
| 1139 | c->trans, 0, 0, 0); |
| 1140 | return; |
| 1141 | } |
| 1142 | trace_usb_mtp_op_open_session(s->dev.addr); |
| 1143 | s->session = c->argv[0]; |
| 1144 | usb_mtp_object_alloc(s, s->next_handle++, NULL, s->root); |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 1145 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 1146 | if (usb_mtp_inotify_init(s)) { |
| 1147 | fprintf(stderr, "usb-mtp: file monitoring init failed\n"); |
| 1148 | } |
| 1149 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1150 | break; |
| 1151 | case CMD_CLOSE_SESSION: |
| 1152 | trace_usb_mtp_op_close_session(s->dev.addr); |
| 1153 | s->session = 0; |
| 1154 | s->next_handle = 0; |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 1155 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 1156 | usb_mtp_inotify_cleanup(s); |
| 1157 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1158 | usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects)); |
| 1159 | assert(QTAILQ_EMPTY(&s->objects)); |
| 1160 | break; |
| 1161 | case CMD_GET_STORAGE_IDS: |
| 1162 | data_in = usb_mtp_get_storage_ids(s, c); |
| 1163 | break; |
| 1164 | case CMD_GET_STORAGE_INFO: |
| 1165 | if (c->argv[0] != QEMU_STORAGE_ID && |
| 1166 | c->argv[0] != 0xffffffff) { |
| 1167 | usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID, |
| 1168 | c->trans, 0, 0, 0); |
| 1169 | return; |
| 1170 | } |
| 1171 | data_in = usb_mtp_get_storage_info(s, c); |
| 1172 | break; |
| 1173 | case CMD_GET_NUM_OBJECTS: |
| 1174 | case CMD_GET_OBJECT_HANDLES: |
| 1175 | if (c->argv[0] != QEMU_STORAGE_ID && |
| 1176 | c->argv[0] != 0xffffffff) { |
| 1177 | usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID, |
| 1178 | c->trans, 0, 0, 0); |
| 1179 | return; |
| 1180 | } |
| 1181 | if (c->argv[1] != 0x00000000) { |
| 1182 | usb_mtp_queue_result(s, RES_SPEC_BY_FORMAT_UNSUPPORTED, |
| 1183 | c->trans, 0, 0, 0); |
| 1184 | return; |
| 1185 | } |
| 1186 | if (c->argv[2] == 0x00000000 || |
| 1187 | c->argv[2] == 0xffffffff) { |
| 1188 | o = QTAILQ_FIRST(&s->objects); |
| 1189 | } else { |
| 1190 | o = usb_mtp_object_lookup(s, c->argv[2]); |
| 1191 | } |
| 1192 | if (o == NULL) { |
| 1193 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1194 | c->trans, 0, 0, 0); |
| 1195 | return; |
| 1196 | } |
| 1197 | if (o->format != FMT_ASSOCIATION) { |
| 1198 | usb_mtp_queue_result(s, RES_INVALID_PARENT_OBJECT, |
| 1199 | c->trans, 0, 0, 0); |
| 1200 | return; |
| 1201 | } |
Gerd Hoffmann | 36084d7 | 2014-05-20 12:54:08 +0200 | [diff] [blame] | 1202 | usb_mtp_object_readdir(s, o); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1203 | if (c->code == CMD_GET_NUM_OBJECTS) { |
| 1204 | trace_usb_mtp_op_get_num_objects(s->dev.addr, o->handle, o->path); |
| 1205 | nres = 1; |
| 1206 | res0 = o->nchildren; |
| 1207 | } else { |
| 1208 | data_in = usb_mtp_get_object_handles(s, c, o); |
| 1209 | } |
| 1210 | break; |
| 1211 | case CMD_GET_OBJECT_INFO: |
| 1212 | o = usb_mtp_object_lookup(s, c->argv[0]); |
| 1213 | if (o == NULL) { |
| 1214 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1215 | c->trans, 0, 0, 0); |
| 1216 | return; |
| 1217 | } |
| 1218 | data_in = usb_mtp_get_object_info(s, c, o); |
| 1219 | break; |
| 1220 | case CMD_GET_OBJECT: |
| 1221 | o = usb_mtp_object_lookup(s, c->argv[0]); |
| 1222 | if (o == NULL) { |
| 1223 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1224 | c->trans, 0, 0, 0); |
| 1225 | return; |
| 1226 | } |
| 1227 | if (o->format == FMT_ASSOCIATION) { |
| 1228 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1229 | c->trans, 0, 0, 0); |
| 1230 | return; |
| 1231 | } |
| 1232 | data_in = usb_mtp_get_object(s, c, o); |
Gonglei | d0657b2 | 2014-08-11 21:00:52 +0800 | [diff] [blame] | 1233 | if (data_in == NULL) { |
Gerd Hoffmann | 22513a9 | 2014-05-20 13:06:55 +0200 | [diff] [blame] | 1234 | usb_mtp_queue_result(s, RES_GENERAL_ERROR, |
| 1235 | c->trans, 0, 0, 0); |
| 1236 | return; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1237 | } |
| 1238 | break; |
| 1239 | case CMD_GET_PARTIAL_OBJECT: |
| 1240 | o = usb_mtp_object_lookup(s, c->argv[0]); |
| 1241 | if (o == NULL) { |
| 1242 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1243 | c->trans, 0, 0, 0); |
| 1244 | return; |
| 1245 | } |
| 1246 | if (o->format == FMT_ASSOCIATION) { |
| 1247 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1248 | c->trans, 0, 0, 0); |
| 1249 | return; |
| 1250 | } |
| 1251 | data_in = usb_mtp_get_partial_object(s, c, o); |
Gonglei | d0657b2 | 2014-08-11 21:00:52 +0800 | [diff] [blame] | 1252 | if (data_in == NULL) { |
Gerd Hoffmann | 22513a9 | 2014-05-20 13:06:55 +0200 | [diff] [blame] | 1253 | usb_mtp_queue_result(s, RES_GENERAL_ERROR, |
| 1254 | c->trans, 0, 0, 0); |
| 1255 | return; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1256 | } |
| 1257 | nres = 1; |
| 1258 | res0 = data_in->length; |
| 1259 | break; |
Isaac Lozano | 67f3ef0 | 2016-08-06 03:06:02 -0700 | [diff] [blame] | 1260 | case CMD_GET_OBJECT_PROPS_SUPPORTED: |
| 1261 | if (c->argv[0] != FMT_UNDEFINED_OBJECT && |
| 1262 | c->argv[0] != FMT_ASSOCIATION) { |
| 1263 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE, |
| 1264 | c->trans, 0, 0, 0); |
| 1265 | return; |
| 1266 | } |
| 1267 | data_in = usb_mtp_get_object_props_supported(s, c); |
| 1268 | break; |
| 1269 | case CMD_GET_OBJECT_PROP_DESC: |
| 1270 | if (c->argv[1] != FMT_UNDEFINED_OBJECT && |
| 1271 | c->argv[1] != FMT_ASSOCIATION) { |
| 1272 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE, |
| 1273 | c->trans, 0, 0, 0); |
| 1274 | return; |
| 1275 | } |
| 1276 | data_in = usb_mtp_get_object_prop_desc(s, c); |
| 1277 | if (data_in == NULL) { |
| 1278 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE, |
| 1279 | c->trans, 0, 0, 0); |
| 1280 | return; |
| 1281 | } |
| 1282 | break; |
| 1283 | case CMD_GET_OBJECT_PROP_VALUE: |
| 1284 | o = usb_mtp_object_lookup(s, c->argv[0]); |
| 1285 | if (o == NULL) { |
| 1286 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, |
| 1287 | c->trans, 0, 0, 0); |
| 1288 | return; |
| 1289 | } |
| 1290 | data_in = usb_mtp_get_object_prop_value(s, c, o); |
| 1291 | if (data_in == NULL) { |
| 1292 | usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE, |
| 1293 | c->trans, 0, 0, 0); |
| 1294 | return; |
| 1295 | } |
| 1296 | break; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1297 | default: |
Gerd Hoffmann | 1c76551 | 2014-04-25 11:51:50 +0200 | [diff] [blame] | 1298 | trace_usb_mtp_op_unknown(s->dev.addr, c->code); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1299 | usb_mtp_queue_result(s, RES_OPERATION_NOT_SUPPORTED, |
| 1300 | c->trans, 0, 0, 0); |
| 1301 | return; |
| 1302 | } |
| 1303 | |
| 1304 | /* return results on success */ |
| 1305 | if (data_in) { |
| 1306 | assert(s->data_in == NULL); |
| 1307 | s->data_in = data_in; |
| 1308 | } |
| 1309 | usb_mtp_queue_result(s, RES_OK, c->trans, nres, res0, 0); |
| 1310 | } |
| 1311 | |
| 1312 | /* ----------------------------------------------------------------------- */ |
| 1313 | |
| 1314 | static void usb_mtp_handle_reset(USBDevice *dev) |
| 1315 | { |
Gonglei | 7c03a89 | 2015-05-06 20:55:28 +0800 | [diff] [blame] | 1316 | MTPState *s = USB_MTP(dev); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1317 | |
| 1318 | trace_usb_mtp_reset(s->dev.addr); |
| 1319 | |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 1320 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 8e3e389 | 2015-11-23 16:37:04 -0500 | [diff] [blame] | 1321 | usb_mtp_inotify_cleanup(s); |
| 1322 | #endif |
Bandan Das | b3c4d42 | 2015-11-23 16:37:03 -0500 | [diff] [blame] | 1323 | usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects)); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1324 | s->session = 0; |
| 1325 | usb_mtp_data_free(s->data_in); |
| 1326 | s->data_in = NULL; |
| 1327 | usb_mtp_data_free(s->data_out); |
| 1328 | s->data_out = NULL; |
| 1329 | g_free(s->result); |
| 1330 | s->result = NULL; |
| 1331 | } |
| 1332 | |
| 1333 | static void usb_mtp_handle_control(USBDevice *dev, USBPacket *p, |
| 1334 | int request, int value, int index, |
| 1335 | int length, uint8_t *data) |
| 1336 | { |
| 1337 | int ret; |
| 1338 | |
| 1339 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
| 1340 | if (ret >= 0) { |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | trace_usb_mtp_stall(dev->addr, "unknown control request"); |
| 1345 | p->status = USB_RET_STALL; |
| 1346 | } |
| 1347 | |
| 1348 | static void usb_mtp_cancel_packet(USBDevice *dev, USBPacket *p) |
| 1349 | { |
Gerd Hoffmann | 1c76551 | 2014-04-25 11:51:50 +0200 | [diff] [blame] | 1350 | /* we don't use async packets, so this should never be called */ |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1351 | fprintf(stderr, "%s\n", __func__); |
| 1352 | } |
| 1353 | |
| 1354 | static void usb_mtp_handle_data(USBDevice *dev, USBPacket *p) |
| 1355 | { |
Gonglei | 7c03a89 | 2015-05-06 20:55:28 +0800 | [diff] [blame] | 1356 | MTPState *s = USB_MTP(dev); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1357 | MTPControl cmd; |
| 1358 | mtp_container container; |
| 1359 | uint32_t params[5]; |
| 1360 | int i, rc; |
| 1361 | |
| 1362 | switch (p->ep->nr) { |
| 1363 | case EP_DATA_IN: |
| 1364 | if (s->data_out != NULL) { |
| 1365 | /* guest bug */ |
| 1366 | trace_usb_mtp_stall(s->dev.addr, "awaiting data-out"); |
| 1367 | p->status = USB_RET_STALL; |
| 1368 | return; |
| 1369 | } |
| 1370 | if (p->iov.size < sizeof(container)) { |
| 1371 | trace_usb_mtp_stall(s->dev.addr, "packet too small"); |
| 1372 | p->status = USB_RET_STALL; |
| 1373 | return; |
| 1374 | } |
| 1375 | if (s->data_in != NULL) { |
| 1376 | MTPData *d = s->data_in; |
Isaac Lozano | 8a5865f | 2016-08-06 03:06:01 -0700 | [diff] [blame] | 1377 | uint64_t dlen = d->length - d->offset; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1378 | if (d->first) { |
| 1379 | trace_usb_mtp_data_in(s->dev.addr, d->trans, d->length); |
Isaac Lozano | 8a5865f | 2016-08-06 03:06:01 -0700 | [diff] [blame] | 1380 | if (d->length + sizeof(container) > 0xFFFFFFFF) { |
| 1381 | container.length = cpu_to_le32(0xFFFFFFFF); |
| 1382 | } else { |
| 1383 | container.length = |
| 1384 | cpu_to_le32(d->length + sizeof(container)); |
| 1385 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1386 | container.type = cpu_to_le16(TYPE_DATA); |
| 1387 | container.code = cpu_to_le16(d->code); |
| 1388 | container.trans = cpu_to_le32(d->trans); |
| 1389 | usb_packet_copy(p, &container, sizeof(container)); |
| 1390 | d->first = false; |
| 1391 | if (dlen > p->iov.size - sizeof(container)) { |
| 1392 | dlen = p->iov.size - sizeof(container); |
| 1393 | } |
| 1394 | } else { |
| 1395 | if (dlen > p->iov.size) { |
| 1396 | dlen = p->iov.size; |
| 1397 | } |
| 1398 | } |
| 1399 | if (d->fd == -1) { |
| 1400 | usb_packet_copy(p, d->data + d->offset, dlen); |
| 1401 | } else { |
| 1402 | if (d->alloc < p->iov.size) { |
| 1403 | d->alloc = p->iov.size; |
| 1404 | d->data = g_realloc(d->data, d->alloc); |
| 1405 | } |
| 1406 | rc = read(d->fd, d->data, dlen); |
| 1407 | if (rc != dlen) { |
Gerd Hoffmann | 8ebb876 | 2014-04-25 12:37:49 +0200 | [diff] [blame] | 1408 | memset(d->data, 0, dlen); |
| 1409 | s->result->code = RES_INCOMPLETE_TRANSFER; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1410 | } |
| 1411 | usb_packet_copy(p, d->data, dlen); |
| 1412 | } |
| 1413 | d->offset += dlen; |
| 1414 | if (d->offset == d->length) { |
| 1415 | usb_mtp_data_free(s->data_in); |
| 1416 | s->data_in = NULL; |
| 1417 | } |
| 1418 | } else if (s->result != NULL) { |
| 1419 | MTPControl *r = s->result; |
| 1420 | int length = sizeof(container) + r->argc * sizeof(uint32_t); |
| 1421 | if (r->code == RES_OK) { |
| 1422 | trace_usb_mtp_success(s->dev.addr, r->trans, |
| 1423 | (r->argc > 0) ? r->argv[0] : 0, |
| 1424 | (r->argc > 1) ? r->argv[1] : 0); |
| 1425 | } else { |
| 1426 | trace_usb_mtp_error(s->dev.addr, r->code, r->trans, |
| 1427 | (r->argc > 0) ? r->argv[0] : 0, |
| 1428 | (r->argc > 1) ? r->argv[1] : 0); |
| 1429 | } |
| 1430 | container.length = cpu_to_le32(length); |
| 1431 | container.type = cpu_to_le16(TYPE_RESPONSE); |
| 1432 | container.code = cpu_to_le16(r->code); |
| 1433 | container.trans = cpu_to_le32(r->trans); |
| 1434 | for (i = 0; i < r->argc; i++) { |
| 1435 | params[i] = cpu_to_le32(r->argv[i]); |
| 1436 | } |
| 1437 | usb_packet_copy(p, &container, sizeof(container)); |
| 1438 | usb_packet_copy(p, ¶ms, length - sizeof(container)); |
| 1439 | g_free(s->result); |
| 1440 | s->result = NULL; |
| 1441 | } |
| 1442 | break; |
| 1443 | case EP_DATA_OUT: |
| 1444 | if (p->iov.size < sizeof(container)) { |
| 1445 | trace_usb_mtp_stall(s->dev.addr, "packet too small"); |
| 1446 | p->status = USB_RET_STALL; |
| 1447 | return; |
| 1448 | } |
| 1449 | usb_packet_copy(p, &container, sizeof(container)); |
| 1450 | switch (le16_to_cpu(container.type)) { |
| 1451 | case TYPE_COMMAND: |
| 1452 | if (s->data_in || s->data_out || s->result) { |
| 1453 | trace_usb_mtp_stall(s->dev.addr, "transaction inflight"); |
| 1454 | p->status = USB_RET_STALL; |
| 1455 | return; |
| 1456 | } |
| 1457 | cmd.code = le16_to_cpu(container.code); |
| 1458 | cmd.argc = (le32_to_cpu(container.length) - sizeof(container)) |
| 1459 | / sizeof(uint32_t); |
| 1460 | cmd.trans = le32_to_cpu(container.trans); |
Gerd Hoffmann | afa82da | 2014-04-25 12:05:15 +0200 | [diff] [blame] | 1461 | if (cmd.argc > ARRAY_SIZE(cmd.argv)) { |
| 1462 | cmd.argc = ARRAY_SIZE(cmd.argv); |
| 1463 | } |
| 1464 | if (p->iov.size < sizeof(container) + cmd.argc * sizeof(uint32_t)) { |
| 1465 | trace_usb_mtp_stall(s->dev.addr, "packet too small"); |
| 1466 | p->status = USB_RET_STALL; |
| 1467 | return; |
| 1468 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1469 | usb_packet_copy(p, ¶ms, cmd.argc * sizeof(uint32_t)); |
| 1470 | for (i = 0; i < cmd.argc; i++) { |
| 1471 | cmd.argv[i] = le32_to_cpu(params[i]); |
| 1472 | } |
| 1473 | trace_usb_mtp_command(s->dev.addr, cmd.code, cmd.trans, |
| 1474 | (cmd.argc > 0) ? cmd.argv[0] : 0, |
| 1475 | (cmd.argc > 1) ? cmd.argv[1] : 0, |
| 1476 | (cmd.argc > 2) ? cmd.argv[2] : 0, |
| 1477 | (cmd.argc > 3) ? cmd.argv[3] : 0, |
| 1478 | (cmd.argc > 4) ? cmd.argv[4] : 0); |
| 1479 | usb_mtp_command(s, &cmd); |
| 1480 | break; |
| 1481 | default: |
Gerd Hoffmann | 9cd04cc | 2014-04-25 12:09:21 +0200 | [diff] [blame] | 1482 | /* not needed as long as the mtp device is read-only */ |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1483 | p->status = USB_RET_STALL; |
| 1484 | return; |
| 1485 | } |
| 1486 | break; |
| 1487 | case EP_EVENT: |
Matthew Fortune | 983bff3 | 2016-02-23 15:44:27 +0000 | [diff] [blame] | 1488 | #ifdef CONFIG_INOTIFY1 |
Bandan Das | 93d592e | 2015-11-23 16:37:05 -0500 | [diff] [blame] | 1489 | if (!QTAILQ_EMPTY(&s->events)) { |
| 1490 | struct MTPMonEntry *e = QTAILQ_LAST(&s->events, events); |
| 1491 | uint32_t handle; |
| 1492 | int len = sizeof(container) + sizeof(uint32_t); |
| 1493 | |
| 1494 | if (p->iov.size < len) { |
| 1495 | trace_usb_mtp_stall(s->dev.addr, |
| 1496 | "packet too small to send event"); |
| 1497 | p->status = USB_RET_STALL; |
| 1498 | return; |
| 1499 | } |
| 1500 | |
| 1501 | QTAILQ_REMOVE(&s->events, e, next); |
| 1502 | container.length = cpu_to_le32(len); |
| 1503 | container.type = cpu_to_le32(TYPE_EVENT); |
| 1504 | container.code = cpu_to_le16(e->event); |
| 1505 | container.trans = 0; /* no trans specific events */ |
| 1506 | handle = cpu_to_le32(e->handle); |
| 1507 | usb_packet_copy(p, &container, sizeof(container)); |
| 1508 | usb_packet_copy(p, &handle, sizeof(uint32_t)); |
| 1509 | g_free(e); |
| 1510 | return; |
| 1511 | } |
| 1512 | #endif |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1513 | p->status = USB_RET_NAK; |
| 1514 | return; |
| 1515 | default: |
| 1516 | trace_usb_mtp_stall(s->dev.addr, "invalid endpoint"); |
| 1517 | p->status = USB_RET_STALL; |
| 1518 | return; |
| 1519 | } |
| 1520 | |
| 1521 | if (p->actual_length == 0) { |
| 1522 | trace_usb_mtp_nak(s->dev.addr, p->ep->nr); |
| 1523 | p->status = USB_RET_NAK; |
| 1524 | return; |
| 1525 | } else { |
| 1526 | trace_usb_mtp_xfer(s->dev.addr, p->ep->nr, p->actual_length, |
| 1527 | p->iov.size); |
| 1528 | return; |
| 1529 | } |
| 1530 | } |
| 1531 | |
Gonglei | df9bb66 | 2014-09-19 14:48:40 +0800 | [diff] [blame] | 1532 | static void usb_mtp_realize(USBDevice *dev, Error **errp) |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1533 | { |
Gonglei | 7c03a89 | 2015-05-06 20:55:28 +0800 | [diff] [blame] | 1534 | MTPState *s = USB_MTP(dev); |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1535 | |
| 1536 | usb_desc_create_serial(dev); |
| 1537 | usb_desc_init(dev); |
| 1538 | QTAILQ_INIT(&s->objects); |
| 1539 | if (s->desc == NULL) { |
Gonglei | e60baeb | 2015-05-06 20:55:29 +0800 | [diff] [blame] | 1540 | if (s->root == NULL) { |
| 1541 | error_setg(errp, "usb-mtp: x-root property must be configured"); |
| 1542 | return; |
| 1543 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1544 | s->desc = strrchr(s->root, '/'); |
Gerd Hoffmann | 457d397 | 2014-04-25 12:06:47 +0200 | [diff] [blame] | 1545 | if (s->desc && s->desc[0]) { |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1546 | s->desc = g_strdup(s->desc + 1); |
| 1547 | } else { |
| 1548 | s->desc = g_strdup("none"); |
| 1549 | } |
| 1550 | } |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1551 | } |
| 1552 | |
| 1553 | static const VMStateDescription vmstate_usb_mtp = { |
| 1554 | .name = "usb-mtp", |
| 1555 | .unmigratable = 1, |
| 1556 | .version_id = 1, |
| 1557 | .minimum_version_id = 1, |
| 1558 | .fields = (VMStateField[]) { |
| 1559 | VMSTATE_USB_DEVICE(dev, MTPState), |
| 1560 | VMSTATE_END_OF_LIST() |
| 1561 | } |
| 1562 | }; |
| 1563 | |
| 1564 | static Property mtp_properties[] = { |
Gerd Hoffmann | cf679ca | 2014-07-22 09:30:12 +0200 | [diff] [blame] | 1565 | DEFINE_PROP_STRING("x-root", MTPState, root), |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1566 | DEFINE_PROP_STRING("desc", MTPState, desc), |
| 1567 | DEFINE_PROP_END_OF_LIST(), |
| 1568 | }; |
| 1569 | |
| 1570 | static void usb_mtp_class_initfn(ObjectClass *klass, void *data) |
| 1571 | { |
| 1572 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 1573 | USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
| 1574 | |
Gonglei | df9bb66 | 2014-09-19 14:48:40 +0800 | [diff] [blame] | 1575 | uc->realize = usb_mtp_realize; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1576 | uc->product_desc = "QEMU USB MTP"; |
| 1577 | uc->usb_desc = &desc; |
| 1578 | uc->cancel_packet = usb_mtp_cancel_packet; |
| 1579 | uc->handle_attach = usb_desc_attach; |
| 1580 | uc->handle_reset = usb_mtp_handle_reset; |
| 1581 | uc->handle_control = usb_mtp_handle_control; |
| 1582 | uc->handle_data = usb_mtp_handle_data; |
Thomas Huth | cdab4dc | 2017-01-20 14:11:04 +0100 | [diff] [blame] | 1583 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
| 1584 | dc->desc = "USB Media Transfer Protocol device"; |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1585 | dc->fw_name = "mtp"; |
| 1586 | dc->vmsd = &vmstate_usb_mtp; |
| 1587 | dc->props = mtp_properties; |
| 1588 | } |
| 1589 | |
| 1590 | static TypeInfo mtp_info = { |
Gonglei | 7c03a89 | 2015-05-06 20:55:28 +0800 | [diff] [blame] | 1591 | .name = TYPE_USB_MTP, |
Gerd Hoffmann | 840a178 | 2012-10-18 10:26:09 +0200 | [diff] [blame] | 1592 | .parent = TYPE_USB_DEVICE, |
| 1593 | .instance_size = sizeof(MTPState), |
| 1594 | .class_init = usb_mtp_class_initfn, |
| 1595 | }; |
| 1596 | |
| 1597 | static void usb_mtp_register_types(void) |
| 1598 | { |
| 1599 | type_register_static(&mtp_info); |
| 1600 | } |
| 1601 | |
| 1602 | type_init(usb_mtp_register_types) |