eb0a78afc0
If the target_files zip for the target build contains a META/releasetools.py (which it has since Nov 2013), prefer that over using a releasetools.py from the local client. Explicitly specifying the device-specific extensions path via command-line options takes priority over both of the above mechanisms. Change-Id: Ia068b0e2e06ede7da89ebe4315cdec592eb8995e
1074 lines
38 KiB
Python
Executable file
1074 lines
38 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Copyright (C) 2008 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Given a target-files zipfile, produces an OTA package that installs
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that build. An incremental OTA is produced if -i is given, otherwise
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a full OTA is produced.
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Usage: ota_from_target_files [flags] input_target_files output_ota_package
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-b (--board_config) <file>
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Deprecated.
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-k (--package_key) <key> Key to use to sign the package (default is
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the value of default_system_dev_certificate from the input
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target-files's META/misc_info.txt, or
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"build/target/product/security/testkey" if that value is not
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specified).
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For incremental OTAs, the default value is based on the source
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target-file, not the target build.
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-i (--incremental_from) <file>
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Generate an incremental OTA using the given target-files zip as
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the starting build.
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-w (--wipe_user_data)
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Generate an OTA package that will wipe the user data partition
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when installed.
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-n (--no_prereq)
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Omit the timestamp prereq check normally included at the top of
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the build scripts (used for developer OTA packages which
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legitimately need to go back and forth).
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-e (--extra_script) <file>
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Insert the contents of file at the end of the update script.
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-a (--aslr_mode) <on|off>
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Specify whether to turn on ASLR for the package (on by default).
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-2 (--two_step)
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Generate a 'two-step' OTA package, where recovery is updated
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first, so that any changes made to the system partition are done
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using the new recovery (new kernel, etc.).
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"""
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import sys
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if sys.hexversion < 0x02040000:
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print >> sys.stderr, "Python 2.4 or newer is required."
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sys.exit(1)
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import copy
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import errno
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import os
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import re
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import subprocess
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import tempfile
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import time
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import zipfile
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try:
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from hashlib import sha1 as sha1
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except ImportError:
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from sha import sha as sha1
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import common
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import edify_generator
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OPTIONS = common.OPTIONS
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OPTIONS.package_key = None
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OPTIONS.incremental_source = None
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OPTIONS.require_verbatim = set()
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OPTIONS.prohibit_verbatim = set(("system/build.prop",))
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OPTIONS.patch_threshold = 0.95
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OPTIONS.wipe_user_data = False
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OPTIONS.omit_prereq = False
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OPTIONS.extra_script = None
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OPTIONS.aslr_mode = True
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OPTIONS.worker_threads = 3
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OPTIONS.two_step = False
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def MostPopularKey(d, default):
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"""Given a dict, return the key corresponding to the largest
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value. Returns 'default' if the dict is empty."""
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x = [(v, k) for (k, v) in d.iteritems()]
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if not x: return default
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x.sort()
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return x[-1][1]
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def IsSymlink(info):
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"""Return true if the zipfile.ZipInfo object passed in represents a
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symlink."""
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return (info.external_attr >> 16) == 0120777
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def IsRegular(info):
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"""Return true if the zipfile.ZipInfo object passed in represents a
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symlink."""
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return (info.external_attr >> 28) == 010
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def ClosestFileMatch(src, tgtfiles, existing):
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"""Returns the closest file match between a source file and list
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of potential matches. The exact filename match is preferred,
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then the sha1 is searched for, and finally a file with the same
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basename is evaluated. Rename support in the updater-binary is
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required for the latter checks to be used."""
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result = tgtfiles.get("path:" + src.name)
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if result is not None:
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return result
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if not OPTIONS.target_info_dict.get("update_rename_support", False):
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return None
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if src.size < 1000:
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return None
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result = tgtfiles.get("sha1:" + src.sha1)
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if result is not None and existing.get(result.name) is None:
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return result
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result = tgtfiles.get("file:" + src.name.split("/")[-1])
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if result is not None and existing.get(result.name) is None:
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return result
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return None
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class Item:
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"""Items represent the metadata (user, group, mode) of files and
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directories in the system image."""
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ITEMS = {}
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def __init__(self, name, dir=False):
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self.name = name
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self.uid = None
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self.gid = None
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self.mode = None
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self.selabel = None
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self.capabilities = None
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self.dir = dir
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if name:
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self.parent = Item.Get(os.path.dirname(name), dir=True)
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self.parent.children.append(self)
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else:
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self.parent = None
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if dir:
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self.children = []
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def Dump(self, indent=0):
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if self.uid is not None:
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print "%s%s %d %d %o" % (" "*indent, self.name, self.uid, self.gid, self.mode)
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else:
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print "%s%s %s %s %s" % (" "*indent, self.name, self.uid, self.gid, self.mode)
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if self.dir:
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print "%s%s" % (" "*indent, self.descendants)
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print "%s%s" % (" "*indent, self.best_subtree)
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for i in self.children:
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i.Dump(indent=indent+1)
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@classmethod
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def Get(cls, name, dir=False):
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if name not in cls.ITEMS:
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cls.ITEMS[name] = Item(name, dir=dir)
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return cls.ITEMS[name]
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@classmethod
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def GetMetadata(cls, input_zip):
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# The target_files contains a record of what the uid,
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# gid, and mode are supposed to be.
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output = input_zip.read("META/filesystem_config.txt")
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for line in output.split("\n"):
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if not line: continue
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columns = line.split()
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name, uid, gid, mode = columns[:4]
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selabel = None
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capabilities = None
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# After the first 4 columns, there are a series of key=value
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# pairs. Extract out the fields we care about.
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for element in columns[4:]:
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key, value = element.split("=")
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if key == "selabel":
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selabel = value
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if key == "capabilities":
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capabilities = value
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i = cls.ITEMS.get(name, None)
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if i is not None:
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i.uid = int(uid)
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i.gid = int(gid)
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i.mode = int(mode, 8)
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i.selabel = selabel
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i.capabilities = capabilities
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if i.dir:
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i.children.sort(key=lambda i: i.name)
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# set metadata for the files generated by this script.
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i = cls.ITEMS.get("system/recovery-from-boot.p", None)
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if i: i.uid, i.gid, i.mode, i.selabel, i.capabilities = 0, 0, 0644, None, None
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i = cls.ITEMS.get("system/etc/install-recovery.sh", None)
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if i: i.uid, i.gid, i.mode, i.selabel, i.capabilities = 0, 0, 0544, None, None
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def CountChildMetadata(self):
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"""Count up the (uid, gid, mode, selabel, capabilities) tuples for
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all children and determine the best strategy for using set_perm_recursive and
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set_perm to correctly chown/chmod all the files to their desired
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values. Recursively calls itself for all descendants.
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Returns a dict of {(uid, gid, dmode, fmode, selabel, capabilities): count} counting up
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all descendants of this node. (dmode or fmode may be None.) Also
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sets the best_subtree of each directory Item to the (uid, gid,
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dmode, fmode, selabel, capabilities) tuple that will match the most
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descendants of that Item.
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"""
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assert self.dir
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d = self.descendants = {(self.uid, self.gid, self.mode, None, self.selabel, self.capabilities): 1}
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for i in self.children:
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if i.dir:
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for k, v in i.CountChildMetadata().iteritems():
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d[k] = d.get(k, 0) + v
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else:
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k = (i.uid, i.gid, None, i.mode, i.selabel, i.capabilities)
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d[k] = d.get(k, 0) + 1
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# Find the (uid, gid, dmode, fmode, selabel, capabilities)
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# tuple that matches the most descendants.
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# First, find the (uid, gid) pair that matches the most
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# descendants.
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ug = {}
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for (uid, gid, _, _, _, _), count in d.iteritems():
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ug[(uid, gid)] = ug.get((uid, gid), 0) + count
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ug = MostPopularKey(ug, (0, 0))
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# Now find the dmode, fmode, selabel, and capabilities that match
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# the most descendants with that (uid, gid), and choose those.
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best_dmode = (0, 0755)
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best_fmode = (0, 0644)
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best_selabel = (0, None)
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best_capabilities = (0, None)
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for k, count in d.iteritems():
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if k[:2] != ug: continue
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if k[2] is not None and count >= best_dmode[0]: best_dmode = (count, k[2])
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if k[3] is not None and count >= best_fmode[0]: best_fmode = (count, k[3])
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if k[4] is not None and count >= best_selabel[0]: best_selabel = (count, k[4])
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if k[5] is not None and count >= best_capabilities[0]: best_capabilities = (count, k[5])
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self.best_subtree = ug + (best_dmode[1], best_fmode[1], best_selabel[1], best_capabilities[1])
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return d
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def SetPermissions(self, script):
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"""Append set_perm/set_perm_recursive commands to 'script' to
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set all permissions, users, and groups for the tree of files
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rooted at 'self'."""
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self.CountChildMetadata()
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def recurse(item, current):
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# current is the (uid, gid, dmode, fmode, selabel, capabilities) tuple that the current
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# item (and all its children) have already been set to. We only
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# need to issue set_perm/set_perm_recursive commands if we're
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# supposed to be something different.
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if item.dir:
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if current != item.best_subtree:
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script.SetPermissionsRecursive("/"+item.name, *item.best_subtree)
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current = item.best_subtree
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if item.uid != current[0] or item.gid != current[1] or \
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item.mode != current[2] or item.selabel != current[4] or \
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item.capabilities != current[5]:
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script.SetPermissions("/"+item.name, item.uid, item.gid,
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item.mode, item.selabel, item.capabilities)
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for i in item.children:
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recurse(i, current)
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else:
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if item.uid != current[0] or item.gid != current[1] or \
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item.mode != current[3] or item.selabel != current[4] or \
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item.capabilities != current[5]:
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script.SetPermissions("/"+item.name, item.uid, item.gid,
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item.mode, item.selabel, item.capabilities)
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recurse(self, (-1, -1, -1, -1, None, None))
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def CopySystemFiles(input_zip, output_zip=None,
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substitute=None):
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"""Copies files underneath system/ in the input zip to the output
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zip. Populates the Item class with their metadata, and returns a
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list of symlinks. output_zip may be None, in which case the copy is
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skipped (but the other side effects still happen). substitute is an
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optional dict of {output filename: contents} to be output instead of
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certain input files.
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"""
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symlinks = []
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for info in input_zip.infolist():
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if info.filename.startswith("SYSTEM/"):
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basefilename = info.filename[7:]
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if IsSymlink(info):
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symlinks.append((input_zip.read(info.filename),
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"/system/" + basefilename))
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else:
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info2 = copy.copy(info)
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fn = info2.filename = "system/" + basefilename
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if substitute and fn in substitute and substitute[fn] is None:
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continue
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if output_zip is not None:
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if substitute and fn in substitute:
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data = substitute[fn]
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else:
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data = input_zip.read(info.filename)
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output_zip.writestr(info2, data)
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if fn.endswith("/"):
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Item.Get(fn[:-1], dir=True)
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else:
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Item.Get(fn, dir=False)
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symlinks.sort()
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return symlinks
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def SignOutput(temp_zip_name, output_zip_name):
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key_passwords = common.GetKeyPasswords([OPTIONS.package_key])
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pw = key_passwords[OPTIONS.package_key]
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common.SignFile(temp_zip_name, output_zip_name, OPTIONS.package_key, pw,
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whole_file=True)
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def AppendAssertions(script, info_dict):
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device = GetBuildProp("ro.product.device", info_dict)
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script.AssertDevice(device)
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def MakeRecoveryPatch(input_tmp, output_zip, recovery_img, boot_img):
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"""Generate a binary patch that creates the recovery image starting
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with the boot image. (Most of the space in these images is just the
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kernel, which is identical for the two, so the resulting patch
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should be efficient.) Add it to the output zip, along with a shell
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script that is run from init.rc on first boot to actually do the
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patching and install the new recovery image.
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recovery_img and boot_img should be File objects for the
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corresponding images. info should be the dictionary returned by
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common.LoadInfoDict() on the input target_files.
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Returns an Item for the shell script, which must be made
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executable.
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"""
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diff_program = ["imgdiff"]
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path = os.path.join(input_tmp, "SYSTEM", "etc", "recovery-resource.dat")
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if os.path.exists(path):
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diff_program.append("-b")
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diff_program.append(path)
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bonus_args = "-b /system/etc/recovery-resource.dat"
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else:
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bonus_args = ""
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d = common.Difference(recovery_img, boot_img, diff_program=diff_program)
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_, _, patch = d.ComputePatch()
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common.ZipWriteStr(output_zip, "recovery/recovery-from-boot.p", patch)
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Item.Get("system/recovery-from-boot.p", dir=False)
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boot_type, boot_device = common.GetTypeAndDevice("/boot", OPTIONS.info_dict)
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recovery_type, recovery_device = common.GetTypeAndDevice("/recovery", OPTIONS.info_dict)
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sh = """#!/system/bin/sh
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if ! applypatch -c %(recovery_type)s:%(recovery_device)s:%(recovery_size)d:%(recovery_sha1)s; then
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log -t recovery "Installing new recovery image"
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applypatch %(bonus_args)s %(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
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else
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log -t recovery "Recovery image already installed"
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fi
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""" % { 'boot_size': boot_img.size,
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'boot_sha1': boot_img.sha1,
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'recovery_size': recovery_img.size,
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'recovery_sha1': recovery_img.sha1,
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'boot_type': boot_type,
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'boot_device': boot_device,
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'recovery_type': recovery_type,
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'recovery_device': recovery_device,
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'bonus_args': bonus_args,
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}
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common.ZipWriteStr(output_zip, "recovery/etc/install-recovery.sh", sh)
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return Item.Get("system/etc/install-recovery.sh", dir=False)
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def WriteFullOTAPackage(input_zip, output_zip):
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# TODO: how to determine this? We don't know what version it will
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# be installed on top of. For now, we expect the API just won't
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# change very often.
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script = edify_generator.EdifyGenerator(3, OPTIONS.info_dict)
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metadata = {"post-build": GetBuildProp("ro.build.fingerprint",
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OPTIONS.info_dict),
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"pre-device": GetBuildProp("ro.product.device",
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OPTIONS.info_dict),
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"post-timestamp": GetBuildProp("ro.build.date.utc",
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OPTIONS.info_dict),
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}
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device_specific = common.DeviceSpecificParams(
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input_zip=input_zip,
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input_version=OPTIONS.info_dict["recovery_api_version"],
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output_zip=output_zip,
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script=script,
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input_tmp=OPTIONS.input_tmp,
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metadata=metadata,
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info_dict=OPTIONS.info_dict)
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if not OPTIONS.omit_prereq:
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ts = GetBuildProp("ro.build.date.utc", OPTIONS.info_dict)
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ts_text = GetBuildProp("ro.build.date", OPTIONS.info_dict)
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script.AssertOlderBuild(ts, ts_text)
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AppendAssertions(script, OPTIONS.info_dict)
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device_specific.FullOTA_Assertions()
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# Two-step package strategy (in chronological order, which is *not*
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# the order in which the generated script has things):
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#
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# if stage is not "2/3" or "3/3":
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# write recovery image to boot partition
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# set stage to "2/3"
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# reboot to boot partition and restart recovery
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# else if stage is "2/3":
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# write recovery image to recovery partition
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# set stage to "3/3"
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# reboot to recovery partition and restart recovery
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# else:
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# (stage must be "3/3")
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# set stage to ""
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# do normal full package installation:
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# wipe and install system, boot image, etc.
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# set up system to update recovery partition on first boot
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# complete script normally (allow recovery to mark itself finished and reboot)
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recovery_img = common.GetBootableImage("recovery.img", "recovery.img",
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OPTIONS.input_tmp, "RECOVERY")
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if OPTIONS.two_step:
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if not OPTIONS.info_dict.get("multistage_support", None):
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assert False, "two-step packages not supported by this build"
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fs = OPTIONS.info_dict["fstab"]["/misc"]
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assert fs.fs_type.upper() == "EMMC", \
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"two-step packages only supported on devices with EMMC /misc partitions"
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bcb_dev = {"bcb_dev": fs.device}
|
|
common.ZipWriteStr(output_zip, "recovery.img", recovery_img.data)
|
|
script.AppendExtra("""
|
|
if get_stage("%(bcb_dev)s", "stage") == "2/3" then
|
|
""" % bcb_dev)
|
|
script.WriteRawImage("/recovery", "recovery.img")
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "3/3");
|
|
reboot_now("%(bcb_dev)s", "recovery");
|
|
else if get_stage("%(bcb_dev)s", "stage") == "3/3" then
|
|
""" % bcb_dev)
|
|
|
|
device_specific.FullOTA_InstallBegin()
|
|
|
|
script.ShowProgress(0.5, 0)
|
|
|
|
if OPTIONS.wipe_user_data:
|
|
script.FormatPartition("/data")
|
|
|
|
if "selinux_fc" in OPTIONS.info_dict:
|
|
WritePolicyConfig(OPTIONS.info_dict["selinux_fc"], output_zip)
|
|
|
|
script.FormatPartition("/system")
|
|
script.Mount("/system")
|
|
script.UnpackPackageDir("recovery", "/system")
|
|
script.UnpackPackageDir("system", "/system")
|
|
|
|
symlinks = CopySystemFiles(input_zip, output_zip)
|
|
script.MakeSymlinks(symlinks)
|
|
|
|
boot_img = common.GetBootableImage("boot.img", "boot.img",
|
|
OPTIONS.input_tmp, "BOOT")
|
|
MakeRecoveryPatch(OPTIONS.input_tmp, output_zip, recovery_img, boot_img)
|
|
|
|
Item.GetMetadata(input_zip)
|
|
Item.Get("system").SetPermissions(script)
|
|
|
|
common.CheckSize(boot_img.data, "boot.img", OPTIONS.info_dict)
|
|
common.ZipWriteStr(output_zip, "boot.img", boot_img.data)
|
|
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()
|
|
|
|
if OPTIONS.two_step:
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "");
|
|
""" % bcb_dev)
|
|
script.AppendExtra("else\n")
|
|
script.WriteRawImage("/boot", "recovery.img")
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "2/3");
|
|
reboot_now("%(bcb_dev)s", "");
|
|
endif;
|
|
endif;
|
|
""" % bcb_dev)
|
|
script.AddToZip(input_zip, output_zip)
|
|
WriteMetadata(metadata, output_zip)
|
|
|
|
def WritePolicyConfig(file_context, output_zip):
|
|
f = open(file_context, 'r');
|
|
basename = os.path.basename(file_context)
|
|
common.ZipWriteStr(output_zip, basename, f.read())
|
|
|
|
|
|
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 = {}
|
|
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)
|
|
return out
|
|
|
|
|
|
def GetBuildProp(prop, info_dict):
|
|
"""Return the fingerprint of the build of a given target-files info_dict."""
|
|
try:
|
|
return info_dict.get("build.prop", {})[prop]
|
|
except KeyError:
|
|
raise common.ExternalError("couldn't find %s in build.prop" % (property,))
|
|
|
|
def AddToKnownPaths(filename, known_paths):
|
|
if filename[-1] == "/":
|
|
return
|
|
dirs = filename.split("/")[:-1]
|
|
while len(dirs) > 0:
|
|
path = "/".join(dirs)
|
|
if path in known_paths:
|
|
break;
|
|
known_paths.add(path)
|
|
dirs.pop()
|
|
|
|
def WriteIncrementalOTAPackage(target_zip, source_zip, output_zip):
|
|
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",
|
|
OPTIONS.source_info_dict),
|
|
"post-timestamp": GetBuildProp("ro.build.date.utc",
|
|
OPTIONS.target_info_dict),
|
|
}
|
|
|
|
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 = LoadSystemFiles(target_zip)
|
|
print "Loading source..."
|
|
source_data = LoadSystemFiles(source_zip)
|
|
|
|
verbatim_targets = []
|
|
patch_list = []
|
|
diffs = []
|
|
renames = {}
|
|
known_paths = set()
|
|
largest_source_size = 0
|
|
|
|
matching_file_cache = {}
|
|
for fn, sf in source_data.items():
|
|
assert fn == sf.name
|
|
matching_file_cache["path:" + fn] = sf
|
|
if fn in target_data.keys():
|
|
AddToKnownPaths(fn, known_paths)
|
|
# Only allow eligibility for filename/sha matching
|
|
# if there isn't a perfect path match.
|
|
if target_data.get(sf.name) is None:
|
|
matching_file_cache["file:" + fn.split("/")[-1]] = sf
|
|
matching_file_cache["sha:" + sf.sha1] = sf
|
|
|
|
for fn in sorted(target_data.keys()):
|
|
tf = target_data[fn]
|
|
assert fn == tf.name
|
|
sf = ClosestFileMatch(tf, matching_file_cache, renames)
|
|
if sf is not None and sf.name != tf.name:
|
|
print "File has moved from " + sf.name + " to " + tf.name
|
|
renames[sf.name] = tf
|
|
|
|
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))
|
|
if fn in target_data.keys():
|
|
AddToKnownPaths(fn, known_paths)
|
|
elif tf.sha1 != sf.sha1:
|
|
# File is different; consider sending as a patch
|
|
diffs.append(common.Difference(tf, sf))
|
|
else:
|
|
# Target file data identical to source (may still be renamed)
|
|
pass
|
|
|
|
common.ComputeDifferences(diffs)
|
|
|
|
for diff in diffs:
|
|
tf, sf, d = diff.GetPatch()
|
|
path = "/".join(tf.name.split("/")[:-1])
|
|
if d is None or len(d) > tf.size * OPTIONS.patch_threshold or \
|
|
path not in known_paths:
|
|
# patch is almost as big as the file; don't bother patching
|
|
# or a patch + rename cannot take place due to the target
|
|
# directory not existing
|
|
tf.AddToZip(output_zip)
|
|
verbatim_targets.append((tf.name, tf.size))
|
|
if sf.name in renames:
|
|
del renames[sf.name]
|
|
AddToKnownPaths(tf.name, known_paths)
|
|
else:
|
|
common.ZipWriteStr(output_zip, "patch/" + sf.name + ".p", d)
|
|
patch_list.append((tf, sf, tf.size, common.sha1(d).hexdigest()))
|
|
largest_source_size = max(largest_source_size, sf.size)
|
|
|
|
source_fp = GetBuildProp("ro.build.fingerprint", OPTIONS.source_info_dict)
|
|
target_fp = GetBuildProp("ro.build.fingerprint", OPTIONS.target_info_dict)
|
|
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",
|
|
OPTIONS.source_info_dict)
|
|
target_boot = common.GetBootableImage(
|
|
"/tmp/boot.img", "boot.img", OPTIONS.target_tmp, "BOOT")
|
|
updating_boot = (not OPTIONS.two_step and
|
|
(source_boot.data != target_boot.data))
|
|
|
|
source_recovery = common.GetBootableImage(
|
|
"/tmp/recovery.img", "recovery.img", OPTIONS.source_tmp, "RECOVERY",
|
|
OPTIONS.source_info_dict)
|
|
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, OPTIONS.target_info_dict)
|
|
device_specific.IncrementalOTA_Assertions()
|
|
|
|
# Two-step incremental package strategy (in chronological order,
|
|
# which is *not* the order in which the generated script has
|
|
# things):
|
|
#
|
|
# if stage is not "2/3" or "3/3":
|
|
# do verification on current system
|
|
# write recovery image to boot partition
|
|
# set stage to "2/3"
|
|
# reboot to boot partition and restart recovery
|
|
# else if stage is "2/3":
|
|
# write recovery image to recovery partition
|
|
# set stage to "3/3"
|
|
# reboot to recovery partition and restart recovery
|
|
# else:
|
|
# (stage must be "3/3")
|
|
# perform update:
|
|
# patch system files, etc.
|
|
# force full install of new boot image
|
|
# set up system to update recovery partition on first boot
|
|
# complete script normally (allow recovery to mark itself finished and reboot)
|
|
|
|
if OPTIONS.two_step:
|
|
if not OPTIONS.info_dict.get("multistage_support", None):
|
|
assert False, "two-step packages not supported by this build"
|
|
fs = OPTIONS.info_dict["fstab"]["/misc"]
|
|
assert fs.fs_type.upper() == "EMMC", \
|
|
"two-step packages only supported on devices with EMMC /misc partitions"
|
|
bcb_dev = {"bcb_dev": fs.device}
|
|
common.ZipWriteStr(output_zip, "recovery.img", target_recovery.data)
|
|
script.AppendExtra("""
|
|
if get_stage("%(bcb_dev)s", "stage") == "2/3" then
|
|
""" % bcb_dev)
|
|
script.AppendExtra("sleep(20);\n");
|
|
script.WriteRawImage("/recovery", "recovery.img")
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "3/3");
|
|
reboot_now("%(bcb_dev)s", "recovery");
|
|
else if get_stage("%(bcb_dev)s", "stage") != "3/3" then
|
|
""" % bcb_dev)
|
|
|
|
script.Print("Verifying current system...")
|
|
|
|
device_specific.IncrementalOTA_VerifyBegin()
|
|
|
|
script.ShowProgress(0.1, 0)
|
|
total_verify_size = float(sum([i[1].size for i in patch_list]) + 1)
|
|
if updating_boot:
|
|
total_verify_size += source_boot.size
|
|
so_far = 0
|
|
|
|
for tf, sf, size, patch_sha in patch_list:
|
|
if tf.name != sf.name:
|
|
script.SkipNextActionIfTargetExists(tf.name, tf.sha1)
|
|
script.PatchCheck("/"+sf.name, 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()
|
|
|
|
if OPTIONS.two_step:
|
|
script.WriteRawImage("/boot", "recovery.img")
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "2/3");
|
|
reboot_now("%(bcb_dev)s", "");
|
|
else
|
|
""" % bcb_dev)
|
|
|
|
script.Comment("---- start making changes here ----")
|
|
|
|
device_specific.IncrementalOTA_InstallBegin()
|
|
|
|
if OPTIONS.two_step:
|
|
common.ZipWriteStr(output_zip, "boot.img", target_boot.data)
|
|
script.WriteRawImage("/boot", "boot.img")
|
|
print "writing full boot image (forced by two-step mode)"
|
|
|
|
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 and
|
|
i not in renames] +
|
|
["/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:
|
|
tf, sf, size, _ = item
|
|
if tf.name == "system/build.prop":
|
|
deferred_patch_list.append(item)
|
|
continue
|
|
if (sf.name != tf.name):
|
|
script.SkipNextActionIfTargetExists(tf.name, tf.sha1)
|
|
script.ApplyPatch("/"+sf.name, "-", tf.size, tf.sha1, sf.sha1, "patch/"+sf.name+".p")
|
|
so_far += tf.size
|
|
script.SetProgress(so_far / total_patch_size)
|
|
|
|
if not OPTIONS.two_step:
|
|
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:
|
|
# Recovery is generated as a patch using both the boot image
|
|
# (which contains the same linux kernel as recovery) and the file
|
|
# /system/etc/recovery-resource.dat (which contains all the images
|
|
# used in the recovery UI) as sources. This lets us minimize the
|
|
# size of the patch, which must be included in every OTA package.
|
|
#
|
|
# For older builds where recovery-resource.dat is not present, we
|
|
# use only the boot image as the source.
|
|
|
|
MakeRecoveryPatch(OPTIONS.target_tmp, 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 = 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 = 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")
|
|
|
|
if len(renames) > 0:
|
|
script.Print("Renaming files...")
|
|
|
|
for src in renames:
|
|
print "Renaming " + src + " to " + renames[src].name
|
|
script.RenameFile(src, renames[src].name)
|
|
|
|
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)
|
|
|
|
# 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:
|
|
tf, sf, size, _ = item
|
|
script.ApplyPatch("/"+sf.name, "-", tf.size, tf.sha1, sf.sha1, "patch/"+sf.name+".p")
|
|
script.SetPermissions("/system/build.prop", 0, 0, 0644, None, None)
|
|
|
|
if OPTIONS.two_step:
|
|
script.AppendExtra("""
|
|
set_stage("%(bcb_dev)s", "");
|
|
endif;
|
|
endif;
|
|
""" % bcb_dev)
|
|
|
|
script.AddToZip(target_zip, output_zip)
|
|
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 ("-2", "--two_step"):
|
|
OPTIONS.two_step = True
|
|
else:
|
|
return False
|
|
return True
|
|
|
|
args = common.ParseOptions(argv, __doc__,
|
|
extra_opts="b:k:i:d:wne:a:2",
|
|
extra_long_opts=["board_config=",
|
|
"package_key=",
|
|
"incremental_from=",
|
|
"wipe_user_data",
|
|
"no_prereq",
|
|
"extra_script=",
|
|
"worker_threads=",
|
|
"aslr_mode=",
|
|
"two_step",
|
|
],
|
|
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)
|
|
|
|
# If this image was originally labelled with SELinux contexts, make sure we
|
|
# also apply the labels in our new image. During building, the "file_contexts"
|
|
# is in the out/ directory tree, but for repacking from target-files.zip it's
|
|
# in the root directory of the ramdisk.
|
|
if "selinux_fc" in OPTIONS.info_dict:
|
|
OPTIONS.info_dict["selinux_fc"] = os.path.join(OPTIONS.input_tmp, "BOOT", "RAMDISK",
|
|
"file_contexts")
|
|
|
|
if OPTIONS.verbose:
|
|
print "--- target info ---"
|
|
common.DumpInfoDict(OPTIONS.info_dict)
|
|
|
|
# If the caller explicitly specified the device-specific extensions
|
|
# path via -s/--device_specific, use that. Otherwise, use
|
|
# META/releasetools.py if it is present in the target target_files.
|
|
# Otherwise, take the path of the file from 'tool_extensions' in the
|
|
# info dict and look for that in the local filesystem, relative to
|
|
# the current directory.
|
|
|
|
if OPTIONS.device_specific is None:
|
|
from_input = os.path.join(OPTIONS.input_tmp, "META", "releasetools.py")
|
|
if os.path.exists(from_input):
|
|
print "(using device-specific extensions from target_files)"
|
|
OPTIONS.device_specific = from_input
|
|
else:
|
|
OPTIONS.device_specific = OPTIONS.info_dict.get("tool_extensions", None)
|
|
|
|
if OPTIONS.device_specific is not None:
|
|
OPTIONS.device_specific = os.path.abspath(OPTIONS.device_specific)
|
|
|
|
temp_zip_file = tempfile.NamedTemporaryFile()
|
|
output_zip = zipfile.ZipFile(temp_zip_file, "w",
|
|
compression=zipfile.ZIP_DEFLATED)
|
|
|
|
if OPTIONS.incremental_source is None:
|
|
WriteFullOTAPackage(input_zip, output_zip)
|
|
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)
|
|
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)
|
|
|
|
output_zip.close()
|
|
|
|
SignOutput(temp_zip_file.name, args[1])
|
|
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)
|