#!/usr/bin/env python # # Copyright (C) 2008 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """ Given a target-files zipfile, produces an OTA package that installs that build. An incremental OTA is produced if -i is given, otherwise a full OTA is produced. Usage: ota_from_target_files [flags] input_target_files output_ota_package -b (--board_config) Deprecated. -k (--package_key) Key to use to sign the package (default is the value of default_system_dev_certificate from the input target-files's META/misc_info.txt, or "build/target/product/security/testkey" if that value is not specified). For incremental OTAs, the default value is based on the source target-file, not the target build. -i (--incremental_from) Generate an incremental OTA using the given target-files zip as the starting build. -w (--wipe_user_data) Generate an OTA package that will wipe the user data partition when installed. -n (--no_prereq) Omit the timestamp prereq check normally included at the top of the build scripts (used for developer OTA packages which legitimately need to go back and forth). -e (--extra_script) Insert the contents of file at the end of the update script. -a (--aslr_mode) Specify whether to turn on ASLR for the package (on by default). -d (--device_type) Specify mmc or mtd type device. mtd by default -f (--fota) Specify if fota upgrade is used or not. not used by default """ import sys if sys.hexversion < 0x02040000: print >> sys.stderr, "Python 2.4 or newer is required." sys.exit(1) print >> sys.stdout ,sys.path[1] import copy import errno import os import re import subprocess import tempfile import time import zipfile try: from hashlib import sha1 as sha1 except ImportError: from sha import sha as sha1 import common import edify_generator OPTIONS = common.OPTIONS OPTIONS.package_key = None OPTIONS.incremental_source = None OPTIONS.require_verbatim = set() OPTIONS.prohibit_verbatim = set(("system/build.prop",)) OPTIONS.patch_threshold = 0.95 OPTIONS.wipe_user_data = False OPTIONS.omit_prereq = False OPTIONS.extra_script = None OPTIONS.aslr_mode = True OPTIONS.worker_threads = 3 OPTIONS.device_type = 'MTD' OPTIONS.fota = 0 def MostPopularKey(d, default): """Given a dict, return the key corresponding to the largest value. Returns 'default' if the dict is empty.""" x = [(v, k) for (k, v) in d.iteritems()] if not x: return default x.sort() return x[-1][1] def IsSymlink(info): """Return true if the zipfile.ZipInfo object passed in represents a symlink.""" return (info.external_attr >> 16) == 0120777 def IsRegular(info): """Return true if the zipfile.ZipInfo object passed in represents a symlink.""" return (info.external_attr >> 28) == 010 class Item: """Items represent the metadata (user, group, mode) of files and directories in the system image.""" ITEMS = {} def __init__(self, name, dir=False): self.name = name self.uid = None self.gid = None self.mode = None self.dir = dir if name: self.parent = Item.Get(os.path.dirname(name), dir=True) self.parent.children.append(self) else: self.parent = None if dir: self.children = [] def Dump(self, indent=0): if self.uid is not None: print "%s%s %d %d %o" % (" "*indent, self.name, self.uid, self.gid, self.mode) else: print "%s%s %s %s %s" % (" "*indent, self.name, self.uid, self.gid, self.mode) if self.dir: print "%s%s" % (" "*indent, self.descendants) print "%s%s" % (" "*indent, self.best_subtree) for i in self.children: i.Dump(indent=indent+1) @classmethod def Get(cls, name, dir=False): if name not in cls.ITEMS: cls.ITEMS[name] = Item(name, dir=dir) return cls.ITEMS[name] @classmethod def GetMetadata(cls, input_zip): try: # See if the target_files contains a record of what the uid, # gid, and mode is supposed to be. output = input_zip.read("META/filesystem_config.txt") except KeyError: # Run the external 'fs_config' program to determine the desired # uid, gid, and mode for every Item object. Note this uses the # one in the client now, which might not be the same as the one # used when this target_files was built. p = common.Run(["fs_config"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) suffix = { False: "", True: "/" } input = "".join(["%s%s\n" % (i.name, suffix[i.dir]) for i in cls.ITEMS.itervalues() if i.name]) output, error = p.communicate(input) assert not error for line in output.split("\n"): if not line: continue name, uid, gid, mode = line.split() i = cls.ITEMS.get(name, None) if i is not None: i.uid = int(uid) i.gid = int(gid) i.mode = int(mode, 8) if i.dir: i.children.sort(key=lambda i: i.name) # set metadata for the files generated by this script. i = cls.ITEMS.get("system/recovery-from-boot.p", None) if i: i.uid, i.gid, i.mode = 0, 0, 0644 i = cls.ITEMS.get("system/etc/install-recovery.sh", None) if i: i.uid, i.gid, i.mode = 0, 0, 0544 def CountChildMetadata(self): """Count up the (uid, gid, mode) tuples for all children and determine the best strategy for using set_perm_recursive and set_perm to correctly chown/chmod all the files to their desired values. Recursively calls itself for all descendants. Returns a dict of {(uid, gid, dmode, fmode): count} counting up all descendants of this node. (dmode or fmode may be None.) Also sets the best_subtree of each directory Item to the (uid, gid, dmode, fmode) tuple that will match the most descendants of that Item. """ assert self.dir d = self.descendants = {(self.uid, self.gid, self.mode, None): 1} for i in self.children: if i.dir: for k, v in i.CountChildMetadata().iteritems(): d[k] = d.get(k, 0) + v else: k = (i.uid, i.gid, None, i.mode) d[k] = d.get(k, 0) + 1 # Find the (uid, gid, dmode, fmode) tuple that matches the most # descendants. # First, find the (uid, gid) pair that matches the most # descendants. ug = {} for (uid, gid, _, _), count in d.iteritems(): ug[(uid, gid)] = ug.get((uid, gid), 0) + count ug = MostPopularKey(ug, (0, 0)) # Now find the dmode and fmode that match the most descendants # with that (uid, gid), and choose those. best_dmode = (0, 0755) best_fmode = (0, 0644) for k, count in d.iteritems(): if k[:2] != ug: continue if k[2] is not None and count >= best_dmode[0]: best_dmode = (count, k[2]) if k[3] is not None and count >= best_fmode[0]: best_fmode = (count, k[3]) self.best_subtree = ug + (best_dmode[1], best_fmode[1]) return d def SetPermissions(self, script): """Append set_perm/set_perm_recursive commands to 'script' to set all permissions, users, and groups for the tree of files rooted at 'self'.""" self.CountChildMetadata() def recurse(item, current): # current is the (uid, gid, dmode, fmode) tuple that the current # item (and all its children) have already been set to. We only # need to issue set_perm/set_perm_recursive commands if we're # supposed to be something different. # During recovery, usrdata partition is mounted at /data. For setting # permissions for files in usrdata we need to make sure the path starts # with /data if item.name.startswith('userdata'): path_on_device = item.name[4:] else: path_on_device = item.name if item.dir: if current != item.best_subtree: script.SetPermissionsRecursive("/"+path_on_device, *item.best_subtree) current = item.best_subtree if item.uid != current[0] or item.gid != current[1] or \ item.mode != current[2]: script.SetPermissions("/"+path_on_device, item.uid, item.gid, item.mode) for i in item.children: recurse(i, current) else: if item.uid != current[0] or item.gid != current[1] or \ item.mode != current[3]: script.SetPermissions("/"+path_on_device, item.uid, item.gid, item.mode) recurse(self, (-1, -1, -1, -1)) def CopySystemFiles(input_zip, output_zip=None, substitute=None): """Copies files underneath system/ in the input zip to the output zip. Populates the Item class with their metadata, and returns a list of symlinks as well as a list of files that will be retouched. output_zip may be None, in which case the copy is skipped (but the other side effects still happen). substitute is an optional dict of {output filename: contents} to be output instead of certain input files. """ symlinks = [] retouch_files = [] for info in input_zip.infolist(): if info.filename.startswith("SYSTEM/"): basefilename = info.filename[7:] if IsSymlink(info): symlinks.append((input_zip.read(info.filename), "/system/" + basefilename)) else: info2 = copy.copy(info) fn = info2.filename = "system/" + basefilename if substitute and fn in substitute and substitute[fn] is None: continue if output_zip is not None: if substitute and fn in substitute: data = substitute[fn] else: data = input_zip.read(info.filename) if info.filename.startswith("SYSTEM/lib/") and IsRegular(info): retouch_files.append(("/system/" + basefilename, common.sha1(data).hexdigest())) if fn.endswith("/"): #zip does not play nice with empty folders. Create dummy file to make sure folder is saved in archive info_dummy = copy.copy(info2) info_dummy.filename = info_dummy.filename + "__emptyfile__" output_zip.writestr(info_dummy,data) output_zip.writestr(info2, data) if fn.endswith("/"): Item.Get(fn[:-1], dir=True) else: Item.Get(fn, dir=False) symlinks.sort() return (symlinks, retouch_files) def CopyUserdataFiles(input_zip, output_zip=None, substitute=None): """Copies files underneath DATA/ in the input zip to the output zip. Populates the Item class with their metadata, and returns a list of symlinks as well as a list of files that will be retouched. output_zip may be None, in which case the copy is skipped (but the other side effects still happen). substitute is an optional dict of {output filename: contents} to be output instead of certain input files. """ symlinks = [] retouch_files = [] for info in input_zip.infolist(): if info.filename.startswith("DATA/"): basefilename = info.filename[5:] if IsSymlink(info): symlinks.append((input_zip.read(info.filename), "/data/" + basefilename)) else: info2 = copy.copy(info) fn = info2.filename = "userdata/" + basefilename if substitute and fn in substitute and substitute[fn] is None: continue if output_zip is not None: if substitute and fn in substitute: data = substitute[fn] else: data = input_zip.read(info.filename) if info.filename.startswith("DATA/lib/") and IsRegular(info): retouch_files.append(("/data/" + basefilename, common.sha1(data).hexdigest())) if fn.endswith("/"): #zip does not play nice with empty folders. Create dummy file to make sure folder is saved in archive info_dummy = copy.copy(info2) info_dummy.filename = info_dummy.filename + "__emptyfile__" output_zip.writestr(info_dummy,data) output_zip.writestr(info2, data) if fn.endswith("/"): Item.Get(fn[:-1], dir=True) else: Item.Get(fn, dir=False) symlinks.sort() return (symlinks, retouch_files) def SignOutput(temp_zip_name, output_zip_name): key_passwords = common.GetKeyPasswords([OPTIONS.package_key]) pw = key_passwords[OPTIONS.package_key] common.SignFile(temp_zip_name, output_zip_name, OPTIONS.package_key, pw, whole_file=True) def AppendAssertions(script, input_zip): print "Skip assertions" def MakeRecoveryPatch(output_zip, recovery_img, boot_img): """Generate a binary patch that creates the recovery image starting with the boot image. (Most of the space in these images is just the kernel, which is identical for the two, so the resulting patch should be efficient.) Add it to the output zip, along with a shell script that is run from init.rc on first boot to actually do the patching and install the new recovery image. recovery_img and boot_img should be File objects for the corresponding images. info should be the dictionary returned by common.LoadInfoDict() on the input target_files. Returns an Item for the shell script, which must be made executable. """ d = common.Difference(recovery_img, boot_img) _, _, patch = d.ComputePatch() common.ZipWriteStr(output_zip, "recovery/recovery-from-boot.p", patch) Item.Get("system/recovery-from-boot.p", dir=False) boot_type, boot_device = common.GetTypeAndDevice("/boot", OPTIONS.info_dict) recovery_type, recovery_device = common.GetTypeAndDevice("/recovery", OPTIONS.info_dict) sh = """#!/system/bin/sh if ! applypatch -c %(recovery_type)s:%(recovery_device)s:%(recovery_size)d:%(recovery_sha1)s; then log -t recovery "Installing new recovery image" applypatch %(boot_type)s:%(boot_device)s:%(boot_size)d:%(boot_sha1)s %(recovery_type)s:%(recovery_device)s %(recovery_sha1)s %(recovery_size)d %(boot_sha1)s:/system/recovery-from-boot.p else log -t recovery "Recovery image already installed" fi """ % { 'boot_size': boot_img.size, 'boot_sha1': boot_img.sha1, 'recovery_size': recovery_img.size, 'recovery_sha1': recovery_img.sha1, 'boot_type': boot_type, 'boot_device': boot_device, 'recovery_type': recovery_type, 'recovery_device': recovery_device, } common.ZipWriteStr(output_zip, "recovery/etc/install-recovery.sh", sh) return Item.Get("system/etc/install-recovery.sh", dir=False) def WriteFullOTAPackage(input_zip, output_zip, fota): # TODO: how to determine this? We don't know what version it will # be installed on top of. For now, we expect the API just won't # change very often. script = edify_generator.EdifyGenerator(3, OPTIONS.info_dict) metadata = {"post-build": GetBuildProp("ro.build.fingerprint", input_zip), "pre-device": GetBuildProp("ro.product.device", input_zip), "post-timestamp": GetBuildProp("ro.build.date.utc", input_zip), } device_specific = common.DeviceSpecificParams( input_zip=input_zip, input_version=OPTIONS.info_dict["recovery_api_version"], output_zip=output_zip, script=script, input_tmp=OPTIONS.input_tmp, metadata=metadata, info_dict=OPTIONS.info_dict, type=OPTIONS.device_type, fota=OPTIONS.fota) device_specific.FullOTA_Assertions() script.ShowProgress(0.5, 0) if OPTIONS.wipe_user_data: script.FormatPartition("/data") script.FormatPartition("/system") script.Mount("/system") #dont want to format userdata partition #script.FormatPartition("/data") script.Mount("/data") script.UnpackPackageDir("recovery", "/system") script.UnpackPackageDir("system", "/system") script.UnpackPackageDir("userdata", "/data") (symlinks, retouch_files) = CopySystemFiles(input_zip, output_zip) script.MakeSymlinks(symlinks) if OPTIONS.aslr_mode: script.RetouchBinaries(retouch_files) else: script.UndoRetouchBinaries(retouch_files) (userdata_symlinks, userdata_retouch_files) = CopyUserdataFiles(input_zip, output_zip) script.RetouchBinaries(userdata_retouch_files) script.MakeSymlinks(userdata_symlinks) boot_img = common.GetBootableImage("boot.img", "boot.img", OPTIONS.input_tmp, "BOOT") recovery_img = common.GetBootableImage("recovery.img", "recovery.img", OPTIONS.input_tmp, "RECOVERY") Item.GetMetadata(input_zip) Item.Get("system").SetPermissions(script) Item.Get("userdata").SetPermissions(script) common.CheckSize(boot_img.data, "boot.img", OPTIONS.info_dict) common.ZipWriteStr(output_zip, "boot.img", boot_img.data) #Write dsp diff/mbn images to zip file dsp_image_names = ["dsp1.diff", "dsp2.diff", "dsp3.diff", "dsp1.mbn", "dsp2.mbn", "dsp3.mbn"] for dsp_image_name in dsp_image_names: dsp_image_path = os.path.join(OPTIONS.input_tmp, dsp_image_name) if os.path.exists(dsp_image_path): print dsp_image_name + " image found. Writing to zip" dsp_file = common.File.FromLocalFile(dsp_image_name, dsp_image_path) common.ZipWriteStr(output_zip, dsp_image_name, dsp_file.data) #if os.path.exists script.ShowProgress(0.2, 0) script.ShowProgress(0.2, 10) script.WriteRawImage("/boot", "boot.img") script.ShowProgress(0.1, 0) device_specific.FullOTA_InstallEnd() if OPTIONS.extra_script is not None: script.AppendExtra(OPTIONS.extra_script) script.UnmountAll() script.AddToZip(input_zip, output_zip, fota) WriteMetadata(metadata, output_zip) def WriteMetadata(metadata, output_zip): common.ZipWriteStr(output_zip, "META-INF/com/android/metadata", "".join(["%s=%s\n" % kv for kv in sorted(metadata.iteritems())])) def LoadSystemFiles(z): """Load all the files from SYSTEM/... in a given target-files ZipFile, and return a dict of {filename: File object}.""" out = {} retouch_files = [] for info in z.infolist(): if info.filename.startswith("SYSTEM/") and not IsSymlink(info): basefilename = info.filename[7:] fn = "system/" + basefilename data = z.read(info.filename) out[fn] = common.File(fn, data) if info.filename.startswith("SYSTEM/lib/") and IsRegular(info): retouch_files.append(("/system/" + basefilename, out[fn].sha1)) return (out, retouch_files) def GetBuildProp(property, z): #We dont need the properties from here. Returning dummy value return "None" """Return the fingerprint of the build of a given target-files ZipFile object.""" bp = z.read("SYSTEM/build.prop") if not property: return bp m = re.search(re.escape(property) + r"=(.*)\n", bp) if not m: raise common.ExternalError("couldn't find %s in build.prop" % (property,)) return m.group(1).strip() def WriteIncrementalOTAPackage(target_zip, source_zip, output_zip, fota): source_version = OPTIONS.source_info_dict["recovery_api_version"] target_version = OPTIONS.target_info_dict["recovery_api_version"] if source_version == 0: print ("WARNING: generating edify script for a source that " "can't install it.") script = edify_generator.EdifyGenerator(source_version, OPTIONS.target_info_dict) metadata = {"pre-device": GetBuildProp("ro.product.device", source_zip), "post-timestamp": GetBuildProp("ro.build.date.utc", target_zip), } device_specific = common.DeviceSpecificParams( source_zip=source_zip, source_version=source_version, target_zip=target_zip, target_version=target_version, output_zip=output_zip, script=script, metadata=metadata, info_dict=OPTIONS.info_dict) print "Loading target..." (target_data, target_retouch_files) = LoadSystemFiles(target_zip) print "Loading source..." (source_data, source_retouch_files) = LoadSystemFiles(source_zip) verbatim_targets = [] patch_list = [] diffs = [] largest_source_size = 0 for fn in sorted(target_data.keys()): tf = target_data[fn] assert fn == tf.name sf = source_data.get(fn, None) if sf is None or fn in OPTIONS.require_verbatim: # This file should be included verbatim if fn in OPTIONS.prohibit_verbatim: raise common.ExternalError("\"%s\" must be sent verbatim" % (fn,)) print "send", fn, "verbatim" tf.AddToZip(output_zip) verbatim_targets.append((fn, tf.size)) elif tf.sha1 != sf.sha1: # File is different; consider sending as a patch diffs.append(common.Difference(tf, sf)) else: # Target file identical to source. pass common.ComputeDifferences(diffs) for diff in diffs: tf, sf, d = diff.GetPatch() if d is None or len(d) > tf.size * OPTIONS.patch_threshold: # patch is almost as big as the file; don't bother patching tf.AddToZip(output_zip) verbatim_targets.append((tf.name, tf.size)) else: common.ZipWriteStr(output_zip, "patch/" + tf.name + ".p", d) patch_list.append((tf.name, tf, sf, tf.size, common.sha1(d).hexdigest())) largest_source_size = max(largest_source_size, sf.size) source_fp = GetBuildProp("ro.build.fingerprint", source_zip) target_fp = GetBuildProp("ro.build.fingerprint", target_zip) metadata["pre-build"] = source_fp metadata["post-build"] = target_fp script.Mount("/system") script.AssertSomeFingerprint(source_fp, target_fp) source_boot = common.GetBootableImage( "/tmp/boot.img", "boot.img", OPTIONS.source_tmp, "BOOT") target_boot = common.GetBootableImage( "/tmp/boot.img", "boot.img", OPTIONS.target_tmp, "BOOT") updating_boot = (source_boot.data != target_boot.data) source_recovery = common.GetBootableImage( "/tmp/recovery.img", "recovery.img", OPTIONS.source_tmp, "RECOVERY") target_recovery = common.GetBootableImage( "/tmp/recovery.img", "recovery.img", OPTIONS.target_tmp, "RECOVERY") updating_recovery = (source_recovery.data != target_recovery.data) # Here's how we divide up the progress bar: # 0.1 for verifying the start state (PatchCheck calls) # 0.8 for applying patches (ApplyPatch calls) # 0.1 for unpacking verbatim files, symlinking, and doing the # device-specific commands. AppendAssertions(script, target_zip) device_specific.IncrementalOTA_Assertions() script.Print("Verifying current system...") script.ShowProgress(0.1, 0) total_verify_size = float(sum([i[2].size for i in patch_list]) + 1) if updating_boot: total_verify_size += source_boot.size so_far = 0 for fn, tf, sf, size, patch_sha in patch_list: script.PatchCheck("/"+fn, tf.sha1, sf.sha1) so_far += sf.size script.SetProgress(so_far / total_verify_size) if updating_boot: d = common.Difference(target_boot, source_boot) _, _, d = d.ComputePatch() print "boot target: %d source: %d diff: %d" % ( target_boot.size, source_boot.size, len(d)) common.ZipWriteStr(output_zip, "patch/boot.img.p", d) boot_type, boot_device = common.GetTypeAndDevice("/boot", OPTIONS.info_dict) script.PatchCheck("%s:%s:%d:%s:%d:%s" % (boot_type, boot_device, source_boot.size, source_boot.sha1, target_boot.size, target_boot.sha1)) so_far += source_boot.size script.SetProgress(so_far / total_verify_size) if patch_list or updating_recovery or updating_boot: script.CacheFreeSpaceCheck(largest_source_size) device_specific.IncrementalOTA_VerifyEnd() script.Comment("---- start making changes here ----") if OPTIONS.wipe_user_data: script.Print("Erasing user data...") script.FormatPartition("/data") script.Print("Removing unneeded files...") script.DeleteFiles(["/"+i[0] for i in verbatim_targets] + ["/"+i for i in sorted(source_data) if i not in target_data] + ["/system/recovery.img"]) script.ShowProgress(0.8, 0) total_patch_size = float(sum([i[1].size for i in patch_list]) + 1) if updating_boot: total_patch_size += target_boot.size so_far = 0 script.Print("Patching system files...") deferred_patch_list = [] for item in patch_list: fn, tf, sf, size, _ = item if tf.name == "system/build.prop": deferred_patch_list.append(item) continue script.ApplyPatch("/"+fn, "-", tf.size, tf.sha1, sf.sha1, "patch/"+fn+".p") so_far += tf.size script.SetProgress(so_far / total_patch_size) if updating_boot: # Produce the boot image by applying a patch to the current # contents of the boot partition, and write it back to the # partition. script.Print("Patching boot image...") script.ApplyPatch("%s:%s:%d:%s:%d:%s" % (boot_type, boot_device, source_boot.size, source_boot.sha1, target_boot.size, target_boot.sha1), "-", target_boot.size, target_boot.sha1, source_boot.sha1, "patch/boot.img.p") so_far += target_boot.size script.SetProgress(so_far / total_patch_size) print "boot image changed; including." else: print "boot image unchanged; skipping." if updating_recovery: # Is it better to generate recovery as a patch from the current # boot image, or from the previous recovery image? For large # updates with significant kernel changes, probably the former. # For small updates where the kernel hasn't changed, almost # certainly the latter. We pick the first option. Future # complicated schemes may let us effectively use both. # # A wacky possibility: as long as there is room in the boot # partition, include the binaries and image files from recovery in # the boot image (though not in the ramdisk) so they can be used # as fodder for constructing the recovery image. MakeRecoveryPatch(output_zip, target_recovery, target_boot) script.DeleteFiles(["/system/recovery-from-boot.p", "/system/etc/install-recovery.sh"]) print "recovery image changed; including as patch from boot." else: print "recovery image unchanged; skipping." script.ShowProgress(0.1, 10) (target_symlinks, target_retouch_dummies) = CopySystemFiles(target_zip, None) target_symlinks_d = dict([(i[1], i[0]) for i in target_symlinks]) temp_script = script.MakeTemporary() Item.GetMetadata(target_zip) Item.Get("system").SetPermissions(temp_script) # Note that this call will mess up the tree of Items, so make sure # we're done with it. (source_symlinks, source_retouch_dummies) = CopySystemFiles(source_zip, None) source_symlinks_d = dict([(i[1], i[0]) for i in source_symlinks]) # Delete all the symlinks in source that aren't in target. This # needs to happen before verbatim files are unpacked, in case a # symlink in the source is replaced by a real file in the target. to_delete = [] for dest, link in source_symlinks: if link not in target_symlinks_d: to_delete.append(link) script.DeleteFiles(to_delete) if verbatim_targets: script.Print("Unpacking new files...") script.UnpackPackageDir("system", "/system") if updating_recovery: script.Print("Unpacking new recovery...") script.UnpackPackageDir("recovery", "/system") script.Print("Symlinks and permissions...") # Create all the symlinks that don't already exist, or point to # somewhere different than what we want. Delete each symlink before # creating it, since the 'symlink' command won't overwrite. to_create = [] for dest, link in target_symlinks: if link in source_symlinks_d: if dest != source_symlinks_d[link]: to_create.append((dest, link)) else: to_create.append((dest, link)) script.DeleteFiles([i[1] for i in to_create]) script.MakeSymlinks(to_create) if OPTIONS.aslr_mode: script.RetouchBinaries(target_retouch_files) else: script.UndoRetouchBinaries(target_retouch_files) # Now that the symlinks are created, we can set all the # permissions. script.AppendScript(temp_script) # Do device-specific installation (eg, write radio image). device_specific.IncrementalOTA_InstallEnd() if OPTIONS.extra_script is not None: script.AppendExtra(OPTIONS.extra_script) # Patch the build.prop file last, so if something fails but the # device can still come up, it appears to be the old build and will # get set the OTA package again to retry. script.Print("Patching remaining system files...") for item in deferred_patch_list: fn, tf, sf, size, _ = item script.ApplyPatch("/"+fn, "-", tf.size, tf.sha1, sf.sha1, "patch/"+fn+".p") script.SetPermissions("/system/build.prop", 0, 0, 0644) script.AddToZip(target_zip, output_zip, fota) WriteMetadata(metadata, output_zip) def main(argv): def option_handler(o, a): if o in ("-b", "--board_config"): pass # deprecated elif o in ("-k", "--package_key"): OPTIONS.package_key = a elif o in ("-i", "--incremental_from"): OPTIONS.incremental_source = a elif o in ("-w", "--wipe_user_data"): OPTIONS.wipe_user_data = True elif o in ("-n", "--no_prereq"): OPTIONS.omit_prereq = True elif o in ("-e", "--extra_script"): OPTIONS.extra_script = a elif o in ("-a", "--aslr_mode"): if a in ("on", "On", "true", "True", "yes", "Yes"): OPTIONS.aslr_mode = True else: OPTIONS.aslr_mode = False elif o in ("--worker_threads"): OPTIONS.worker_threads = int(a) elif o in ("-d", "--device_type"): OPTIONS.device_type = a elif o in ("-f", "--fota"): OPTIONS.fota = a else: return False return True args = common.ParseOptions(argv, __doc__, extra_opts="b:k:i:d:wne:a:d:f:", extra_long_opts=["board_config=", "package_key=", "incremental_from=", "wipe_user_data", "no_prereq", "extra_script=", "worker_threads=", "aslr_mode=", "device_type=", "fota="], extra_option_handler=option_handler) if len(args) != 2: common.Usage(__doc__) sys.exit(1) if OPTIONS.extra_script is not None: OPTIONS.extra_script = open(OPTIONS.extra_script).read() print "unzipping target target-files..." OPTIONS.input_tmp, input_zip = common.UnzipTemp(args[0]) OPTIONS.target_tmp = OPTIONS.input_tmp OPTIONS.info_dict = common.LoadInfoDict(input_zip, OPTIONS.device_type) if OPTIONS.verbose: print "--- target info ---" common.DumpInfoDict(OPTIONS.info_dict) print "using device-specific extensions in", OPTIONS.device_specific temp_zip_file = open("update.zip","w",0) output_zip = zipfile.ZipFile(temp_zip_file, "w", compression=zipfile.ZIP_DEFLATED) if OPTIONS.incremental_source is None: WriteFullOTAPackage(input_zip, output_zip, OPTIONS.fota) if OPTIONS.package_key is None: OPTIONS.package_key = OPTIONS.info_dict.get( "default_system_dev_certificate", "build/target/product/security/testkey") else: print "unzipping source target-files..." OPTIONS.source_tmp, source_zip = common.UnzipTemp(OPTIONS.incremental_source) OPTIONS.target_info_dict = OPTIONS.info_dict OPTIONS.source_info_dict = common.LoadInfoDict(source_zip, OPTIONS.device_type) if OPTIONS.package_key is None: OPTIONS.package_key = OPTIONS.source_info_dict.get( "default_system_dev_certificate", "build/target/product/security/testkey") if OPTIONS.verbose: print "--- source info ---" common.DumpInfoDict(OPTIONS.source_info_dict) WriteIncrementalOTAPackage(input_zip, source_zip, output_zip, OPTIONS.fota) output_zip.close() temp_zip_file.close() common.Cleanup() print "done." if __name__ == '__main__': try: common.CloseInheritedPipes() main(sys.argv[1:]) except common.ExternalError, e: print print " ERROR: %s" % (e,) print sys.exit(1)