diff options
Diffstat (limited to 'b2g/components/RecoveryService.js')
| -rw-r--r-- | b2g/components/RecoveryService.js | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/b2g/components/RecoveryService.js b/b2g/components/RecoveryService.js new file mode 100644 index 000000000..493763e6d --- /dev/null +++ b/b2g/components/RecoveryService.js @@ -0,0 +1,160 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ +"use strict"; + +const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components; + +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); +Cu.import("resource://gre/modules/ctypes.jsm"); +Cu.import("resource://gre/modules/AppConstants.jsm"); + +const RECOVERYSERVICE_CID = Components.ID("{b3caca5d-0bb0-48c6-912b-6be6cbf08832}"); +const RECOVERYSERVICE_CONTRACTID = "@mozilla.org/recovery-service;1"; + +function log(msg) { + dump("-*- RecoveryService: " + msg + "\n"); +} + +const isGonk = AppConstants.platform === 'gonk'; + +if (isGonk) { + var librecovery = (function() { + let library; + try { + library = ctypes.open("librecovery.so"); + } catch (e) { + log("Unable to open librecovery.so"); + throw Cr.NS_ERROR_FAILURE; + } + // Bug 1163956, modify updatePath from ctyps.char.ptr to ctype.char.array(4096) + // align with librecovery.h. 4096 comes from PATH_MAX + let FotaUpdateStatus = new ctypes.StructType("FotaUpdateStatus", [ + { result: ctypes.int }, + { updatePath: ctypes.char.array(4096) } + ]); + + return { + factoryReset: library.declare("factoryReset", + ctypes.default_abi, + ctypes.int), + installFotaUpdate: library.declare("installFotaUpdate", + ctypes.default_abi, + ctypes.int, + ctypes.char.ptr, + ctypes.int), + + FotaUpdateStatus: FotaUpdateStatus, + getFotaUpdateStatus: library.declare("getFotaUpdateStatus", + ctypes.default_abi, + ctypes.int, + FotaUpdateStatus.ptr) + }; + })(); + +} + +const gFactoryResetFile = "__post_reset_cmd__"; + +function RecoveryService() {} + +RecoveryService.prototype = { + classID: RECOVERYSERVICE_CID, + QueryInterface: XPCOMUtils.generateQI([Ci.nsIRecoveryService]), + classInfo: XPCOMUtils.generateCI({ + classID: RECOVERYSERVICE_CID, + contractID: RECOVERYSERVICE_CONTRACTID, + interfaces: [Ci.nsIRecoveryService], + classDescription: "B2G Recovery Service" + }), + + factoryReset: function RS_factoryReset(reason) { + if (!isGonk) { + Cr.NS_ERROR_FAILURE; + } + + function doReset() { + // If this succeeds, then the device reboots and this never returns + if (librecovery.factoryReset() != 0) { + log("Error: Factory reset failed. Trying again after clearing cache."); + } + let cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"] + .getService(Ci.nsICacheStorageService); + cache.clear(); + if (librecovery.factoryReset() != 0) { + log("Error: Factory reset failed again"); + } + } + + log("factoryReset " + reason); + let commands = []; + if (reason == "wipe") { + let volumeService = Cc["@mozilla.org/telephony/volume-service;1"] + .getService(Ci.nsIVolumeService); + let volNames = volumeService.getVolumeNames(); + log("Found " + volNames.length + " volumes"); + + for (let i = 0; i < volNames.length; i++) { + let name = volNames.queryElementAt(i, Ci.nsISupportsString); + let volume = volumeService.getVolumeByName(name.data); + log("Got volume: " + name.data + " at " + volume.mountPoint); + commands.push("wipe " + volume.mountPoint); + } + } else if (reason == "root") { + commands.push("root"); + } + + if (commands.length > 0) { + Cu.import("resource://gre/modules/osfile.jsm"); + let dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + dir.initWithPath("/persist"); + var postResetFile = dir.exists() ? + OS.Path.join("/persist", gFactoryResetFile): + OS.Path.join("/cache", gFactoryResetFile); + let encoder = new TextEncoder(); + let text = commands.join("\n"); + let array = encoder.encode(text); + let promise = OS.File.writeAtomic(postResetFile, array, + { tmpPath: postResetFile + ".tmp" }); + + promise.then(doReset, function onError(error) { + log("Error: " + error); + }); + } else { + doReset(); + } + }, + + installFotaUpdate: function RS_installFotaUpdate(updatePath) { + if (!isGonk) { + throw Cr.NS_ERROR_FAILURE; + } + + // If this succeeds, then the device reboots and this never returns + if (librecovery.installFotaUpdate(updatePath, updatePath.length) != 0) { + log("Error: FOTA install failed. Trying again after clearing cache."); + } + var cache = Cc["@mozilla.org/netwerk/cache-storage-service;1"].getService(Ci.nsICacheStorageService); + cache.clear(); + if (librecovery.installFotaUpdate(updatePath, updatePath.length) != 0) { + log("Error: FOTA install failed again"); + } + }, + + getFotaUpdateStatus: function RS_getFotaUpdateStatus() { + let status = Ci.nsIRecoveryService.FOTA_UPDATE_UNKNOWN; + + if (isGonk) { + let cStatus = librecovery.FotaUpdateStatus(); + + if (librecovery.getFotaUpdateStatus(cStatus.address()) == 0) { + status = cStatus.result; + } + } + return status; + } +}; + +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([RecoveryService]); |