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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/chromeos/cros/mount_library.h" | |
| 6 | |
| 7 #include <set> | |
| 8 #include <sys/statvfs.h> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/message_loop.h" | |
| 12 #include "base/string_util.h" | |
| 13 #include "chrome/browser/chromeos/cros/cros_library.h" | |
| 14 #include "content/public/browser/browser_thread.h" | |
| 15 | |
| 16 using content::BrowserThread; | |
| 17 | |
| 18 const char* kLibraryNotLoaded = "Cros Library not loaded"; | |
| 19 const char* kDeviceNotFound = "Device could not be found"; | |
| 20 | |
| 21 namespace chromeos { | |
| 22 | |
| 23 // static | |
| 24 std::string MountLibrary::MountTypeToString(MountType type) { | |
| 25 switch (type) { | |
| 26 case MOUNT_TYPE_DEVICE: | |
| 27 return "device"; | |
| 28 case MOUNT_TYPE_ARCHIVE: | |
| 29 return "file"; | |
| 30 case MOUNT_TYPE_NETWORK_STORAGE: | |
| 31 return "network"; | |
| 32 case MOUNT_TYPE_INVALID: | |
| 33 return "invalid"; | |
| 34 default: | |
| 35 NOTREACHED(); | |
| 36 } | |
| 37 return ""; | |
| 38 } | |
| 39 | |
| 40 std::string MountLibrary::MountConditionToString(MountCondition condition) { | |
| 41 switch (condition) { | |
| 42 case MOUNT_CONDITION_NONE: | |
| 43 return ""; | |
| 44 case MOUNT_CONDITION_UNKNOWN_FILESYSTEM: | |
| 45 return "unknown_filesystem"; | |
| 46 case MOUNT_CONDITION_UNSUPPORTED_FILESYSTEM: | |
| 47 return "unsupported_filesystem"; | |
| 48 default: | |
| 49 NOTREACHED(); | |
| 50 } | |
| 51 return ""; | |
| 52 } | |
| 53 | |
| 54 // static | |
| 55 MountType MountLibrary::MountTypeFromString( | |
| 56 const std::string& type_str) { | |
| 57 if (type_str == "device") { | |
| 58 return MOUNT_TYPE_DEVICE; | |
| 59 } else if (type_str == "network") { | |
| 60 return MOUNT_TYPE_NETWORK_STORAGE; | |
| 61 } else if (type_str == "file") { | |
| 62 return MOUNT_TYPE_ARCHIVE; | |
| 63 } else { | |
| 64 return MOUNT_TYPE_INVALID; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 MountLibrary::Disk::Disk(const std::string& device_path, | |
| 69 const std::string& mount_path, | |
| 70 const std::string& system_path, | |
| 71 const std::string& file_path, | |
| 72 const std::string& device_label, | |
| 73 const std::string& drive_label, | |
| 74 const std::string& parent_path, | |
| 75 const std::string& system_path_prefix, | |
| 76 DeviceType device_type, | |
| 77 uint64 total_size, | |
| 78 bool is_parent, | |
| 79 bool is_read_only, | |
| 80 bool has_media, | |
| 81 bool on_boot_device, | |
| 82 bool is_hidden) | |
| 83 : device_path_(device_path), | |
| 84 mount_path_(mount_path), | |
| 85 system_path_(system_path), | |
| 86 file_path_(file_path), | |
| 87 device_label_(device_label), | |
| 88 drive_label_(drive_label), | |
| 89 parent_path_(parent_path), | |
| 90 system_path_prefix_(system_path_prefix), | |
| 91 device_type_(device_type), | |
| 92 total_size_(total_size), | |
| 93 is_parent_(is_parent), | |
| 94 is_read_only_(is_read_only), | |
| 95 has_media_(has_media), | |
| 96 on_boot_device_(on_boot_device), | |
| 97 is_hidden_(is_hidden) { | |
| 98 } | |
| 99 | |
| 100 MountLibrary::Disk::~Disk() {} | |
| 101 | |
| 102 class MountLibcrosProxyImpl : public MountLibcrosProxy { | |
| 103 public: | |
| 104 virtual void CallMountPath(const char* source_path, | |
| 105 MountType type, | |
| 106 const MountPathOptions& options, | |
| 107 MountCompletedMonitor callback, | |
| 108 void* object) OVERRIDE { | |
| 109 chromeos::MountSourcePath(source_path, type, options, callback, object); | |
| 110 } | |
| 111 | |
| 112 virtual void CallUnmountPath(const char* path, | |
| 113 UnmountRequestCallback callback, | |
| 114 void* object) OVERRIDE { | |
| 115 chromeos::UnmountMountPoint(path, callback, object); | |
| 116 } | |
| 117 | |
| 118 virtual void CallRequestMountInfo(RequestMountInfoCallback callback, | |
| 119 void* object) OVERRIDE { | |
| 120 chromeos::RequestMountInfo(callback, object); | |
| 121 } | |
| 122 | |
| 123 virtual void CallFormatDevice(const char* file_path, | |
| 124 const char* filesystem, | |
| 125 FormatRequestCallback callback, | |
| 126 void* object) OVERRIDE { | |
| 127 chromeos::FormatDevice(file_path, filesystem, callback, object); | |
| 128 } | |
| 129 | |
| 130 virtual void CallGetDiskProperties(const char* device_path, | |
| 131 GetDiskPropertiesCallback callback, | |
| 132 void* object) OVERRIDE { | |
| 133 chromeos::GetDiskProperties(device_path, callback, object); | |
| 134 } | |
| 135 | |
| 136 virtual MountEventConnection MonitorCrosDisks( | |
| 137 MountEventMonitor monitor, | |
| 138 MountCompletedMonitor mount_completed_monitor, | |
| 139 void* object) OVERRIDE { | |
| 140 return chromeos::MonitorAllMountEvents( | |
| 141 monitor, mount_completed_monitor, object); | |
| 142 } | |
| 143 | |
| 144 virtual void DisconnectCrosDisksMonitorIfSet( | |
| 145 MountEventConnection conn) OVERRIDE { | |
| 146 if (conn) | |
| 147 chromeos::DisconnectMountEventMonitor(conn); | |
| 148 } | |
| 149 }; | |
| 150 | |
| 151 class MountLibraryImpl : public MountLibrary { | |
| 152 | |
| 153 struct UnmountDeviceRecursiveCallbackData { | |
| 154 MountLibraryImpl* const object; | |
| 155 void* user_data; | |
| 156 UnmountDeviceRecursiveCallbackType callback; | |
| 157 size_t pending_callbacks_count; | |
| 158 bool success; | |
| 159 | |
| 160 UnmountDeviceRecursiveCallbackData(MountLibraryImpl* const o, void* ud, | |
| 161 UnmountDeviceRecursiveCallbackType cb, int count) | |
| 162 : object(o), | |
| 163 user_data(ud), | |
| 164 callback(cb), | |
| 165 pending_callbacks_count(count), | |
| 166 success(true) { | |
| 167 } | |
| 168 }; | |
| 169 | |
| 170 public: | |
| 171 MountLibraryImpl() : libcros_proxy_(new MountLibcrosProxyImpl()), | |
| 172 mount_status_connection_(NULL) { | |
| 173 } | |
| 174 | |
| 175 virtual ~MountLibraryImpl() { | |
| 176 libcros_proxy_->DisconnectCrosDisksMonitorIfSet( | |
| 177 mount_status_connection_); | |
| 178 } | |
| 179 | |
| 180 // MountLibrary overrides. | |
| 181 virtual void Init() OVERRIDE { | |
| 182 DCHECK(CrosLibrary::Get()->libcros_loaded()); | |
| 183 // Getting the monitor status so that the daemon starts up. | |
| 184 mount_status_connection_ = libcros_proxy_->MonitorCrosDisks( | |
| 185 &MonitorMountEventsHandler, &MountCompletedHandler, this); | |
| 186 } | |
| 187 | |
| 188 virtual void AddObserver(Observer* observer) OVERRIDE { | |
| 189 observers_.AddObserver(observer); | |
| 190 } | |
| 191 | |
| 192 virtual void RemoveObserver(Observer* observer) OVERRIDE { | |
| 193 observers_.RemoveObserver(observer); | |
| 194 } | |
| 195 | |
| 196 virtual void MountPath(const char* source_path, | |
| 197 MountType type, | |
| 198 const MountPathOptions& options) OVERRIDE { | |
| 199 // Hidden and non-existent devices should not be mounted. | |
| 200 if (type == MOUNT_TYPE_DEVICE) { | |
| 201 DiskMap::const_iterator it = disks_.find(source_path); | |
| 202 if (it == disks_.end() || it->second->is_hidden()) { | |
| 203 MountCompletedHandler(this, MOUNT_ERROR_INTERNAL, source_path, type, | |
| 204 NULL); | |
| 205 return; | |
| 206 } | |
| 207 } | |
| 208 CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 209 libcros_proxy_->CallMountPath(source_path, type, options, | |
| 210 &MountCompletedHandler, this); | |
| 211 } | |
| 212 | |
| 213 virtual void UnmountPath(const char* mount_path) OVERRIDE { | |
| 214 CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 215 libcros_proxy_->CallUnmountPath(mount_path, &UnmountMountPointCallback, | |
| 216 this); | |
| 217 } | |
| 218 | |
| 219 virtual void GetSizeStatsOnFileThread(const char* mount_path, | |
| 220 size_t* total_size_kb, size_t* remaining_size_kb) OVERRIDE { | |
| 221 CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 222 | |
| 223 uint64_t total_size_uint64 = 0; | |
| 224 uint64_t remaining_size_uint64 = 0; | |
| 225 | |
| 226 struct statvfs stat; | |
| 227 if (statvfs(mount_path, &stat) == 0) { | |
| 228 total_size_uint64 = | |
| 229 static_cast<uint64_t>(stat.f_blocks) * stat.f_frsize; | |
| 230 remaining_size_uint64 = | |
| 231 static_cast<uint64_t>(stat.f_bfree) * stat.f_frsize; | |
| 232 } | |
| 233 | |
| 234 *total_size_kb = static_cast<size_t>(total_size_uint64 / 1024); | |
| 235 *remaining_size_kb = static_cast<size_t>(remaining_size_uint64 / 1024); | |
| 236 } | |
| 237 | |
| 238 virtual void FormatUnmountedDevice(const char* file_path) OVERRIDE { | |
| 239 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 240 for (MountLibrary::DiskMap::iterator it = disks_.begin(); | |
| 241 it != disks_.end(); ++it) { | |
| 242 if (it->second->file_path().compare(file_path) == 0 && | |
| 243 !it->second->mount_path().empty()) { | |
| 244 OnFormatDevice(file_path, | |
| 245 false, | |
| 246 MOUNT_METHOD_ERROR_LOCAL, | |
| 247 "Device is still mounted."); | |
| 248 return; | |
| 249 } | |
| 250 } | |
| 251 libcros_proxy_->CallFormatDevice(file_path, "vfat", &FormatDeviceCallback, | |
| 252 this); | |
| 253 } | |
| 254 | |
| 255 virtual void FormatMountedDevice(const char* mount_path) OVERRIDE { | |
| 256 DCHECK(mount_path); | |
| 257 Disk* disk = NULL; | |
| 258 for (MountLibrary::DiskMap::iterator it = disks_.begin(); | |
| 259 it != disks_.end(); ++it) { | |
| 260 if (it->second->mount_path().compare(mount_path) == 0) { | |
| 261 disk = it->second; | |
| 262 break; | |
| 263 } | |
| 264 } | |
| 265 if (!disk) { | |
| 266 OnFormatDevice(mount_path, | |
| 267 false, | |
| 268 MOUNT_METHOD_ERROR_LOCAL, | |
| 269 "Device with this mount path not found."); | |
| 270 return; | |
| 271 } | |
| 272 | |
| 273 if (formatting_pending_.find(disk->device_path()) != | |
| 274 formatting_pending_.end()) { | |
| 275 OnFormatDevice(mount_path, | |
| 276 false, | |
| 277 MOUNT_METHOD_ERROR_LOCAL, | |
| 278 "Formatting is already pending."); | |
| 279 return; | |
| 280 } | |
| 281 // Formatting process continues, after unmounting. | |
| 282 formatting_pending_[disk->device_path()] = disk->file_path(); | |
| 283 UnmountPath(disk->mount_path().c_str()); | |
| 284 } | |
| 285 | |
| 286 virtual void UnmountDeviceRecursive(const char* device_path, | |
| 287 UnmountDeviceRecursiveCallbackType callback, void* user_data) | |
| 288 OVERRIDE { | |
| 289 bool success = true; | |
| 290 const char* error_message = NULL; | |
| 291 std::vector<const char*> devices_to_unmount; | |
| 292 | |
| 293 // Get list of all devices to unmount. | |
| 294 int device_path_len = strlen(device_path); | |
| 295 for (DiskMap::iterator it = disks_.begin(); it != disks_.end(); ++it) { | |
| 296 if (!it->second->mount_path().empty() && | |
| 297 strncmp(device_path, it->second->device_path().c_str(), | |
| 298 device_path_len) == 0) { | |
| 299 devices_to_unmount.push_back(it->second->mount_path().c_str()); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 // We should detect at least original device. | |
| 304 if (devices_to_unmount.size() == 0) { | |
| 305 if (disks_.find(device_path) == disks_.end()) { | |
| 306 success = false; | |
| 307 error_message = kDeviceNotFound; | |
| 308 } else { | |
| 309 // Nothing to unmount. | |
| 310 callback(user_data, true); | |
| 311 return; | |
| 312 } | |
| 313 } | |
| 314 | |
| 315 if (success) { | |
| 316 // We will send the same callback data object to all Unmount calls and use | |
| 317 // it to syncronize callbacks. | |
| 318 UnmountDeviceRecursiveCallbackData* | |
| 319 cb_data = new UnmountDeviceRecursiveCallbackData(this, user_data, | |
| 320 callback, devices_to_unmount.size()); | |
| 321 for (std::vector<const char*>::iterator it = devices_to_unmount.begin(); | |
| 322 it != devices_to_unmount.end(); | |
| 323 ++it) { | |
| 324 libcros_proxy_->CallUnmountPath(*it, &UnmountDeviceRecursiveCallback, | |
| 325 cb_data); | |
| 326 } | |
| 327 } else { | |
| 328 LOG(WARNING) << "Unmount recursive request failed for device " | |
| 329 << device_path << ", with error: " << error_message; | |
| 330 callback(user_data, false); | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 virtual void RequestMountInfoRefresh() OVERRIDE { | |
| 335 CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 336 libcros_proxy_->CallRequestMountInfo(RequestMountInfoCallback, this); | |
| 337 } | |
| 338 | |
| 339 const DiskMap& disks() const OVERRIDE { return disks_; } | |
| 340 const MountPointMap& mount_points() const OVERRIDE { return mount_points_; } | |
| 341 | |
| 342 virtual void SetLibcrosProxy(MountLibcrosProxy* proxy) OVERRIDE { | |
| 343 libcros_proxy_->DisconnectCrosDisksMonitorIfSet(mount_status_connection_); | |
| 344 libcros_proxy_.reset(proxy); | |
| 345 mount_status_connection_ = libcros_proxy_->MonitorCrosDisks( | |
| 346 &MonitorMountEventsHandler, &MountCompletedHandler, this); | |
| 347 } | |
| 348 private: | |
| 349 // Callback for MountComplete signal and MountSourcePath method. | |
| 350 static void MountCompletedHandler(void* object, | |
| 351 MountError error_code, | |
| 352 const char* source_path, | |
| 353 MountType type, | |
| 354 const char* mount_path) { | |
| 355 DCHECK(object); | |
| 356 MountCondition mount_condition = MOUNT_CONDITION_NONE; | |
| 357 if (type == MOUNT_TYPE_DEVICE) { | |
| 358 if (error_code == MOUNT_ERROR_UNKNOWN_FILESYSTEM) | |
| 359 mount_condition = MOUNT_CONDITION_UNKNOWN_FILESYSTEM; | |
| 360 if (error_code == MOUNT_ERROR_UNSUPORTED_FILESYSTEM) | |
| 361 mount_condition = MOUNT_CONDITION_UNSUPPORTED_FILESYSTEM; | |
| 362 } | |
| 363 | |
| 364 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 365 self->OnMountCompleted(static_cast<MountError>(error_code), | |
| 366 MountPointInfo(source_path, | |
| 367 mount_path, | |
| 368 type, | |
| 369 mount_condition)); | |
| 370 } | |
| 371 | |
| 372 // Callback for UnmountRemovableDevice method. | |
| 373 static void UnmountMountPointCallback(void* object, | |
| 374 const char* mount_path, | |
| 375 MountMethodErrorType error, | |
| 376 const char* error_message) { | |
| 377 DCHECK(object); | |
| 378 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 379 self->OnUnmountPath(mount_path, error, error_message); | |
| 380 } | |
| 381 | |
| 382 // Callback for FormatRemovableDevice method. | |
| 383 static void FormatDeviceCallback(void* object, | |
| 384 const char* file_path, | |
| 385 bool success, | |
| 386 MountMethodErrorType error, | |
| 387 const char* error_message) { | |
| 388 DCHECK(object); | |
| 389 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 390 const char* device_path = self->FilePathToDevicePath(file_path); | |
| 391 if (!device_path) { | |
| 392 LOG(ERROR) << "Error while handling disks metadata. Cannot find " | |
| 393 << "device that is being formatted."; | |
| 394 return; | |
| 395 } | |
| 396 self->OnFormatDevice(device_path, success, error, error_message); | |
| 397 } | |
| 398 | |
| 399 // Callback for UnmountDeviceRecursive. | |
| 400 static void UnmountDeviceRecursiveCallback(void* object, | |
| 401 const char* mount_path, | |
| 402 MountMethodErrorType error, | |
| 403 const char* error_message) { | |
| 404 DCHECK(object); | |
| 405 UnmountDeviceRecursiveCallbackData* cb_data = | |
| 406 static_cast<UnmountDeviceRecursiveCallbackData*>(object); | |
| 407 | |
| 408 // Do standard processing for Unmount event. | |
| 409 cb_data->object->OnUnmountPath(mount_path, | |
| 410 error, | |
| 411 error_message); | |
| 412 if (error == MOUNT_METHOD_ERROR_LOCAL) { | |
| 413 cb_data->success = false; | |
| 414 } else if (error == MOUNT_METHOD_ERROR_NONE) { | |
| 415 LOG(INFO) << mount_path << " unmounted."; | |
| 416 } | |
| 417 | |
| 418 // This is safe as long as all callbacks are called on the same thread as | |
| 419 // UnmountDeviceRecursive. | |
| 420 cb_data->pending_callbacks_count--; | |
| 421 | |
| 422 if (cb_data->pending_callbacks_count == 0) { | |
| 423 cb_data->callback(cb_data->user_data, cb_data->success); | |
| 424 delete cb_data; | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 // Callback for disk information retrieval calls. | |
| 429 static void GetDiskPropertiesCallback(void* object, | |
| 430 const char* device_path, | |
| 431 const DiskInfo* disk, | |
| 432 MountMethodErrorType error, | |
| 433 const char* error_message) { | |
| 434 DCHECK(object); | |
| 435 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 436 self->OnGetDiskProperties(device_path, | |
| 437 disk, | |
| 438 error, | |
| 439 error_message); | |
| 440 } | |
| 441 | |
| 442 // Callback for RequestMountInfo call. | |
| 443 static void RequestMountInfoCallback(void* object, | |
| 444 const char** devices, | |
| 445 size_t device_len, | |
| 446 MountMethodErrorType error, | |
| 447 const char* error_message) { | |
| 448 DCHECK(object); | |
| 449 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 450 self->OnRequestMountInfo(devices, | |
| 451 device_len, | |
| 452 error, | |
| 453 error_message); | |
| 454 } | |
| 455 | |
| 456 // This method will receive events that are caused by drive status changes. | |
| 457 static void MonitorMountEventsHandler(void* object, | |
| 458 MountEventType evt, | |
| 459 const char* device_path) { | |
| 460 DCHECK(object); | |
| 461 MountLibraryImpl* self = static_cast<MountLibraryImpl*>(object); | |
| 462 self->OnMountEvent(evt, device_path); | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void OnMountCompleted(MountError error_code, | |
| 467 const MountPointInfo& mount_info) { | |
| 468 DCHECK(!mount_info.source_path.empty()); | |
| 469 | |
| 470 FireMountCompleted(MOUNTING, error_code, mount_info); | |
| 471 | |
| 472 // If the device is corrupted but it's still possible to format it, it will | |
| 473 // be fake mounted. | |
| 474 if ((error_code == MOUNT_ERROR_NONE || mount_info.mount_condition) && | |
| 475 mount_points_.find(mount_info.mount_path) == mount_points_.end()) { | |
| 476 mount_points_.insert(MountPointMap::value_type( | |
| 477 mount_info.mount_path.c_str(), | |
| 478 mount_info)); | |
| 479 } | |
| 480 | |
| 481 if ((error_code == MOUNT_ERROR_NONE || mount_info.mount_condition) && | |
| 482 mount_info.mount_type == MOUNT_TYPE_DEVICE && | |
| 483 !mount_info.source_path.empty() && | |
| 484 !mount_info.mount_path.empty()) { | |
| 485 DiskMap::iterator iter = disks_.find(mount_info.source_path); | |
| 486 if (iter == disks_.end()) { | |
| 487 // disk might have been removed by now? | |
| 488 return; | |
| 489 } | |
| 490 Disk* disk = iter->second; | |
| 491 DCHECK(disk); | |
| 492 disk->set_mount_path(mount_info.mount_path.c_str()); | |
| 493 FireDiskStatusUpdate(MOUNT_DISK_MOUNTED, disk); | |
| 494 } | |
| 495 } | |
| 496 | |
| 497 void OnUnmountPath(const char* mount_path, | |
| 498 MountMethodErrorType error, | |
| 499 const char* error_message) { | |
| 500 DCHECK(mount_path); | |
| 501 if (error == MOUNT_METHOD_ERROR_NONE && mount_path) { | |
| 502 MountPointMap::iterator mount_points_it = mount_points_.find(mount_path); | |
| 503 if (mount_points_it == mount_points_.end()) | |
| 504 return; | |
| 505 // TODO(tbarzic): Add separate, PathUnmounted event to Observer. | |
| 506 FireMountCompleted( | |
| 507 UNMOUNTING, | |
| 508 MOUNT_ERROR_NONE, | |
| 509 MountPointInfo(mount_points_it->second.source_path.c_str(), | |
| 510 mount_points_it->second.mount_path.c_str(), | |
| 511 mount_points_it->second.mount_type, | |
| 512 mount_points_it->second.mount_condition)); | |
| 513 std::string path(mount_points_it->second.source_path); | |
| 514 mount_points_.erase(mount_points_it); | |
| 515 DiskMap::iterator iter = disks_.find(path); | |
| 516 if (iter == disks_.end()) { | |
| 517 // disk might have been removed by now. | |
| 518 return; | |
| 519 } | |
| 520 Disk* disk = iter->second; | |
| 521 DCHECK(disk); | |
| 522 disk->clear_mount_path(); | |
| 523 // Check if there is a formatting scheduled | |
| 524 PathMap::iterator it = formatting_pending_.find(disk->device_path()); | |
| 525 if (it != formatting_pending_.end()) { | |
| 526 const std::string file_path = it->second; | |
| 527 formatting_pending_.erase(it); | |
| 528 FormatUnmountedDevice(file_path.c_str()); | |
| 529 } | |
| 530 } else { | |
| 531 LOG(WARNING) << "Unmount request failed for device " | |
| 532 << mount_path << ", with error: " | |
| 533 << (error_message ? error_message : "Unknown"); | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 void OnFormatDevice(const char* device_path, | |
| 538 bool success, | |
| 539 MountMethodErrorType error, | |
| 540 const char* error_message) { | |
| 541 DCHECK(device_path); | |
| 542 if (error == MOUNT_METHOD_ERROR_NONE && device_path && success) { | |
| 543 FireDeviceStatusUpdate(MOUNT_FORMATTING_STARTED, device_path); | |
| 544 } else { | |
| 545 FireDeviceStatusUpdate(MOUNT_FORMATTING_STARTED, | |
| 546 std::string("!") + device_path); | |
| 547 LOG(WARNING) << "Format request failed for device " | |
| 548 << device_path << ", with error: " | |
| 549 << (error_message ? error_message : "Unknown"); | |
| 550 } | |
| 551 } | |
| 552 | |
| 553 void OnGetDiskProperties(const char* device_path, | |
| 554 const DiskInfo* disk, | |
| 555 MountMethodErrorType error, | |
| 556 const char* error_message) { | |
| 557 DCHECK(device_path); | |
| 558 if (error == MOUNT_METHOD_ERROR_NONE && device_path) { | |
| 559 // TODO(zelidrag): Find a better way to filter these out before we | |
| 560 // fetch the properties: | |
| 561 // Ignore disks coming from the device we booted the system from. | |
| 562 | |
| 563 // This cast is temporal solution, until we merge DiskInfo and | |
| 564 // DiskInfoAdvanced into single interface. | |
| 565 if (disk->on_boot_device()) | |
| 566 return; | |
| 567 | |
| 568 LOG(WARNING) << "Found disk " << device_path; | |
| 569 // Delete previous disk info for this path: | |
| 570 bool is_new = true; | |
| 571 std::string device_path_string(device_path); | |
| 572 DiskMap::iterator iter = disks_.find(device_path_string); | |
| 573 if (iter != disks_.end()) { | |
| 574 delete iter->second; | |
| 575 disks_.erase(iter); | |
| 576 is_new = false; | |
| 577 } | |
| 578 | |
| 579 std::string path; | |
| 580 std::string mountpath; | |
| 581 std::string systempath; | |
| 582 std::string filepath; | |
| 583 std::string devicelabel; | |
| 584 std::string drivelabel; | |
| 585 std::string parentpath; | |
| 586 | |
| 587 if (disk->path() != NULL) | |
| 588 path = disk->path(); | |
| 589 | |
| 590 if (disk->mount_path() != NULL) | |
| 591 mountpath = disk->mount_path(); | |
| 592 | |
| 593 if (disk->system_path() != NULL) | |
| 594 systempath = disk->system_path(); | |
| 595 | |
| 596 if (disk->file_path() != NULL) | |
| 597 filepath = disk->file_path(); | |
| 598 | |
| 599 if (disk->label() != NULL) | |
| 600 devicelabel = disk->label(); | |
| 601 | |
| 602 if (disk->drive_label() != NULL) | |
| 603 drivelabel = disk->drive_label(); | |
| 604 | |
| 605 if (disk->partition_slave() != NULL) | |
| 606 parentpath = disk->partition_slave(); | |
| 607 | |
| 608 Disk* new_disk = new Disk(path, | |
| 609 mountpath, | |
| 610 systempath, | |
| 611 filepath, | |
| 612 devicelabel, | |
| 613 drivelabel, | |
| 614 parentpath, | |
| 615 FindSystemPathPrefix(systempath), | |
| 616 disk->device_type(), | |
| 617 disk->size(), | |
| 618 disk->is_drive(), | |
| 619 disk->is_read_only(), | |
| 620 disk->has_media(), | |
| 621 disk->on_boot_device(), | |
| 622 disk->is_hidden()); | |
| 623 disks_.insert( | |
| 624 std::pair<std::string, Disk*>(device_path_string, new_disk)); | |
| 625 FireDiskStatusUpdate(is_new ? MOUNT_DISK_ADDED : MOUNT_DISK_CHANGED, | |
| 626 new_disk); | |
| 627 } else { | |
| 628 LOG(WARNING) << "Property retrieval request failed for device " | |
| 629 << device_path << ", with error: " | |
| 630 << (error_message ? error_message : "Unknown"); | |
| 631 } | |
| 632 } | |
| 633 | |
| 634 void OnRequestMountInfo(const char** devices, | |
| 635 size_t devices_len, | |
| 636 MountMethodErrorType error, | |
| 637 const char* error_message) { | |
| 638 std::set<std::string> current_device_set; | |
| 639 if (error == MOUNT_METHOD_ERROR_NONE && devices && devices_len) { | |
| 640 // Initiate properties fetch for all removable disks, | |
| 641 bool found_disk = false; | |
| 642 for (size_t i = 0; i < devices_len; i++) { | |
| 643 if (!devices[i]) { | |
| 644 NOTREACHED(); | |
| 645 continue; | |
| 646 } | |
| 647 current_device_set.insert(std::string(devices[i])); | |
| 648 found_disk = true; | |
| 649 // Initiate disk property retrieval for each relevant device path. | |
| 650 libcros_proxy_->CallGetDiskProperties(devices[i], | |
| 651 &GetDiskPropertiesCallback, this); | |
| 652 } | |
| 653 } else if (error != MOUNT_METHOD_ERROR_NONE) { | |
| 654 LOG(WARNING) << "Request mount info retrieval request failed with error: " | |
| 655 << (error_message ? error_message : "Unknown"); | |
| 656 } | |
| 657 // Search and remove disks that are no longer present. | |
| 658 for (MountLibrary::DiskMap::iterator iter = disks_.begin(); | |
| 659 iter != disks_.end(); ) { | |
| 660 if (current_device_set.find(iter->first) == current_device_set.end()) { | |
| 661 Disk* disk = iter->second; | |
| 662 FireDiskStatusUpdate(MOUNT_DISK_REMOVED, disk); | |
| 663 delete iter->second; | |
| 664 disks_.erase(iter++); | |
| 665 } else { | |
| 666 ++iter; | |
| 667 } | |
| 668 } | |
| 669 } | |
| 670 | |
| 671 void OnMountEvent(MountEventType evt, | |
| 672 const char* device_path) { | |
| 673 if (!device_path) | |
| 674 return; | |
| 675 MountLibraryEventType type = MOUNT_DEVICE_ADDED; | |
| 676 switch (evt) { | |
| 677 case DISK_ADDED: { | |
| 678 libcros_proxy_->CallGetDiskProperties(device_path, | |
| 679 &MountLibraryImpl::GetDiskPropertiesCallback, this); | |
| 680 return; | |
| 681 } | |
| 682 case DISK_REMOVED: { | |
| 683 // Search and remove disks that are no longer present. | |
| 684 MountLibrary::DiskMap::iterator iter = | |
| 685 disks_.find(std::string(device_path)); | |
| 686 if (iter != disks_.end()) { | |
| 687 Disk* disk = iter->second; | |
| 688 FireDiskStatusUpdate(MOUNT_DISK_REMOVED, disk); | |
| 689 delete iter->second; | |
| 690 disks_.erase(iter); | |
| 691 } | |
| 692 return; | |
| 693 } | |
| 694 case DEVICE_ADDED: { | |
| 695 type = MOUNT_DEVICE_ADDED; | |
| 696 system_path_prefixes_.insert(device_path); | |
| 697 break; | |
| 698 } | |
| 699 case DEVICE_REMOVED: { | |
| 700 type = MOUNT_DEVICE_REMOVED; | |
| 701 system_path_prefixes_.erase(device_path); | |
| 702 break; | |
| 703 } | |
| 704 case DEVICE_SCANNED: { | |
| 705 type = MOUNT_DEVICE_SCANNED; | |
| 706 break; | |
| 707 } | |
| 708 case FORMATTING_FINISHED: { | |
| 709 // FORMATTING_FINISHED actually returns file path instead of device | |
| 710 // path. | |
| 711 device_path = FilePathToDevicePath(device_path); | |
| 712 if (!device_path) { | |
| 713 LOG(ERROR) << "Error while handling disks metadata. Cannot find " | |
| 714 << "device that is being formatted."; | |
| 715 return; | |
| 716 } | |
| 717 type = MOUNT_FORMATTING_FINISHED; | |
| 718 break; | |
| 719 } | |
| 720 default: { | |
| 721 return; | |
| 722 } | |
| 723 } | |
| 724 FireDeviceStatusUpdate(type, std::string(device_path)); | |
| 725 } | |
| 726 | |
| 727 void FireDiskStatusUpdate(MountLibraryEventType evt, | |
| 728 const Disk* disk) { | |
| 729 // Make sure we run on UI thread. | |
| 730 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 731 FOR_EACH_OBSERVER( | |
| 732 Observer, observers_, DiskChanged(evt, disk)); | |
| 733 } | |
| 734 | |
| 735 void FireDeviceStatusUpdate(MountLibraryEventType evt, | |
| 736 const std::string& device_path) { | |
| 737 // Make sure we run on UI thread. | |
| 738 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 739 FOR_EACH_OBSERVER( | |
| 740 Observer, observers_, DeviceChanged(evt, device_path)); | |
| 741 } | |
| 742 | |
| 743 void FireMountCompleted(MountEvent event_type, | |
| 744 MountError error_code, | |
| 745 const MountPointInfo& mount_info) { | |
| 746 // Make sure we run on UI thread. | |
| 747 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 748 FOR_EACH_OBSERVER( | |
| 749 Observer, observers_, MountCompleted(event_type, | |
| 750 error_code, | |
| 751 mount_info)); | |
| 752 } | |
| 753 | |
| 754 const char* FilePathToDevicePath(const char* file_path) { | |
| 755 int failed = (file_path[0] == '!') ? 1 : 0; | |
| 756 for (MountLibrary::DiskMap::iterator it = disks_.begin(); | |
| 757 it != disks_.end(); ++it) { | |
| 758 if (it->second->file_path().compare(file_path + failed) == 0) { | |
| 759 if (failed) { | |
| 760 return (std::string("!") + it->second->device_path()).c_str(); | |
| 761 } else { | |
| 762 return it->second->device_path().c_str(); | |
| 763 } | |
| 764 } | |
| 765 } | |
| 766 return NULL; | |
| 767 } | |
| 768 | |
| 769 const std::string& FindSystemPathPrefix(const std::string& system_path) { | |
| 770 if (system_path.empty()) | |
| 771 return EmptyString(); | |
| 772 for (SystemPathPrefixSet::const_iterator it = system_path_prefixes_.begin(); | |
| 773 it != system_path_prefixes_.end(); | |
| 774 ++it) { | |
| 775 if (system_path.find(*it, 0) == 0) | |
| 776 return *it; | |
| 777 } | |
| 778 return EmptyString(); | |
| 779 } | |
| 780 | |
| 781 // Mount event change observers. | |
| 782 ObserverList<Observer> observers_; | |
| 783 | |
| 784 scoped_ptr<MountLibcrosProxy> libcros_proxy_; | |
| 785 | |
| 786 // A reference to the mount api, to allow callbacks when the mount | |
| 787 // status changes. | |
| 788 MountEventConnection mount_status_connection_; | |
| 789 | |
| 790 // The list of disks found. | |
| 791 MountLibrary::DiskMap disks_; | |
| 792 | |
| 793 MountLibrary::MountPointMap mount_points_; | |
| 794 | |
| 795 typedef std::set<std::string> SystemPathPrefixSet; | |
| 796 SystemPathPrefixSet system_path_prefixes_; | |
| 797 | |
| 798 // Set of devices that are supposed to be formated, but are currently waiting | |
| 799 // to be unmounted. When device is in this map, the formatting process HAVEN'T | |
| 800 // started yet. | |
| 801 PathMap formatting_pending_; | |
| 802 | |
| 803 DISALLOW_COPY_AND_ASSIGN(MountLibraryImpl); | |
| 804 }; | |
| 805 | |
| 806 class MountLibraryStubImpl : public MountLibrary { | |
| 807 public: | |
| 808 MountLibraryStubImpl() {} | |
| 809 virtual ~MountLibraryStubImpl() {} | |
| 810 | |
| 811 // MountLibrary overrides. | |
| 812 virtual void Init() OVERRIDE {} | |
| 813 virtual void AddObserver(Observer* observer) OVERRIDE {} | |
| 814 virtual void RemoveObserver(Observer* observer) OVERRIDE {} | |
| 815 virtual const DiskMap& disks() const OVERRIDE { return disks_; } | |
| 816 virtual const MountPointMap& mount_points() const OVERRIDE { | |
| 817 return mount_points_; | |
| 818 } | |
| 819 virtual void RequestMountInfoRefresh() OVERRIDE {} | |
| 820 virtual void MountPath(const char* source_path, MountType type, | |
| 821 const MountPathOptions& options) OVERRIDE {} | |
| 822 virtual void UnmountPath(const char* mount_path) OVERRIDE {} | |
| 823 virtual void GetSizeStatsOnFileThread(const char* mount_path, | |
| 824 size_t* total_size_kb, size_t* remaining_size_kb) OVERRIDE {} | |
| 825 virtual void FormatUnmountedDevice(const char* device_path) OVERRIDE {} | |
| 826 virtual void FormatMountedDevice(const char* mount_path) OVERRIDE {} | |
| 827 virtual void UnmountDeviceRecursive(const char* device_path, | |
| 828 UnmountDeviceRecursiveCallbackType callback, void* user_data) | |
| 829 OVERRIDE {} | |
| 830 private: | |
| 831 // The list of disks found. | |
| 832 DiskMap disks_; | |
| 833 MountPointMap mount_points_; | |
| 834 | |
| 835 DISALLOW_COPY_AND_ASSIGN(MountLibraryStubImpl); | |
| 836 }; | |
| 837 | |
| 838 // static | |
| 839 MountLibrary* MountLibrary::GetImpl(bool stub) { | |
| 840 MountLibrary* impl; | |
| 841 if (stub) | |
| 842 impl = new MountLibraryStubImpl(); | |
| 843 else | |
| 844 impl = new MountLibraryImpl(); | |
| 845 impl->Init(); | |
| 846 return impl; | |
| 847 } | |
| 848 | |
| 849 } // namespace chromeos | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 8386031:
Move chromeos_mount.cc from libcros to Chrome tree (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src