mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
Bug 1131798 - Fix handling of CPU sub-type and rebasing WITHOUT requiring Python 3.3. r=ted
This commit is contained in:
Joe Steele
parent
184700fa33
commit
20a21bdf78
@ -1,4 +1,5 @@
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#!/usr/bin/env python
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#!/usr/bin/env python2.7
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#
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# Copyright 2014 Adobe Systems Incorporated. All Rights Reserved.
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#
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# Adobe permits you to use, modify, and distribute this file in accordance
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@ -6,17 +7,18 @@
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# a copy of the MPL was not distributed with this file, You can obtain one
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# at http://mozilla.org/MPL/2.0/.
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#
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# Create perforce changelist of modules from FTP server
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# Creates an Adobe Access signed voucher for any executable
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# Notes: This is currently python2.7 due to mozilla build system requirements
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import io, argparse,pyasn1, bitstring
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from pyasn1.codec.der import encoder, decoder
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import argparse, bitstring, pprint, hashlib, os, subprocess, sys, tempfile
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from pyasn1.codec.der import encoder as der_encoder
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from pyasn1.type import univ, namedtype, namedval, constraint
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import hashlib
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# CodeSectionDigest ::= SEQUENCE {
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# offset INTEGER -- section's file offset in the signed binary
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# digestAlgorithm OBJECT IDENTIFIER -- algorithm identifier for the hash value below. For now only supports SHA256.
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# digestValue OCTET STRING -- hash value of the TEXT segment.
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# offset INTEGER -- section's file offset in the signed binary
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# digestAlgorithm OBJECT IDENTIFIER -- algorithm identifier for the hash value below. For now only supports SHA256.
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# digestValue OCTET STRING -- hash value of the TEXT segment.
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# }
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class CodeSectionDigest(univ.Sequence):
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componentType = namedtype.NamedTypes(
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@ -24,6 +26,7 @@ class CodeSectionDigest(univ.Sequence):
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namedtype.NamedType('digestAlgorithm', univ.ObjectIdentifier()),
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namedtype.NamedType('digest', univ.OctetString()))
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# CodeSegmentDigest ::= SEQUENCE {
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# offset INTEGER -- TEXT segment's file offset in the signed binary
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# codeSectionDigests SET OF CodeSectionDigests
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@ -32,20 +35,22 @@ class CodeSectionDigest(univ.Sequence):
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class SetOfCodeSectionDigest(univ.SetOf):
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componentType = CodeSectionDigest()
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class CodeSegmentDigest(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('offset', univ.Integer()),
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namedtype.NamedType('codeSectionDigests', SetOfCodeSectionDigest()))
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# ArchitectureDigest ::= SEQUENCE {
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# cpuType ENUMERATED CpuType
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# cpuSubType ENUMERATED CpuSubType
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# CodeSegmentDigests SET OF CodeSegmentDigests
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# }
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class SetOfCodeSegmentDigest(univ.SetOf):
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componentType = CodeSegmentDigest()
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class CPUType(univ.Enumerated):
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namedValues = namedval.NamedValues(
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('IMAGE_FILE_MACHINE_I386', 0x14c),
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@ -55,34 +60,46 @@ class CPUType(univ.Enumerated):
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constraint.SingleValueConstraint(0x14c, 0x8664)
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class CPUSubType(univ.Enumerated):
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namedValues = namedval.NamedValues(
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('IMAGE_UNUSED', 0x0),
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)
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subtypeSpec = univ.Enumerated.subtypeSpec + \
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constraint.SingleValueConstraint(0)
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class ArchitectureDigest(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('cpuType', CPUType()),
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namedtype.NamedType('cpuSubType', univ.Integer()),
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namedtype.NamedType('cpuSubType', CPUSubType()),
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namedtype.NamedType('CodeSegmentDigests', SetOfCodeSegmentDigest())
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)
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# ApplicationDigest ::= SEQUENCE {
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# version INTEGER
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# digests SET OF ArchitectureDigest
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# }
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# ApplicationDigest ::= SEQUENCE {
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# version INTEGER
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# digests SET OF ArchitectureDigest
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# }
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class SetOfArchitectureDigest(univ.SetOf):
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componentType = ArchitectureDigest()
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class ApplicationDigest(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('version', univ.Integer()),
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namedtype.NamedType('digests', SetOfArchitectureDigest())
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)
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def meetsRequirements(items, requirements):
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def meets_requirements(items, requirements):
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for r in requirements:
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for n, v in r.items():
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if n not in items or items[n] != v: return False
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return True
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# return total number of bytes read from items_in excluding leaves
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def parseItems(stream, items_in, items_out):
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def parse_items(stream, items_in, items_out):
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bits_read = 0
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total_bits_read = 0
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@ -102,7 +119,7 @@ def parseItems(stream, items_in, items_out):
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requirements = list(filter(lambda x: isinstance(x, dict), item[2]))
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sub_items = list(filter(lambda x: isinstance(x, tuple), item[2]))
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if not meetsRequirements(items_out, requirements): continue
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if not meets_requirements(items_out, requirements): continue
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# has sub-items based on length
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items_out[name] = stream.read(t)
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@ -113,7 +130,7 @@ def parseItems(stream, items_in, items_out):
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bit_length = items_out[name] * 8
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if bit_length > 0:
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sub_read, sub_total_read = parseItems(stream, sub_items, items_out)
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sub_read, sub_total_read = parse_items(stream, sub_items, items_out)
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bit_length -= sub_read
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total_bits_read += sub_total_read
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@ -127,6 +144,7 @@ def parseItems(stream, items_in, items_out):
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return bits_read, total_bits_read
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# TODO: perhaps switch to pefile module when it officially supports python3
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class SectionHeader:
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def __init__(self, stream):
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items = [
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@ -141,15 +159,115 @@ class SectionHeader:
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('NumberOfLineNumbers', 'uintle:16'),
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('Characteristics', 'uintle:32')
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]
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self.items = {}
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_, self.bits_read = parseItems(stream, items, self.items)
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self.items = dict()
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self.relocs = dict()
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_, self.bits_read = parse_items(stream, items, self.items)
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self.sectionName = self.items['Name'].decode('utf-8')
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self.offset = self.items['PointerToRawData']
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COFF_DATA_DIRECTORY_TYPES = [
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"Export Table",
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"Import Table",
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"Resource Table",
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"Exception Table",
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"Certificate Tble",
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"Base Relocation Table",
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"Debug",
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"Architecture",
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"Global Ptr",
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"TLS Table",
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"Load Config Table",
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"Bound Import",
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"IAT",
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"Delay Import Descriptor",
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"CLR Runtime Header",
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"Reserved",
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]
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def chained_safe_get(obj, names, default=None):
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if obj is None: return default
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for n in names:
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if n in obj:
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obj = obj[n]
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else:
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return default
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return obj
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class OptionalHeader:
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def __init__(self, stream, size):
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self.items = {}
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items = []
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if size:
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items += [
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('Magic', 'uintle:16'),
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('MajorLinkerVersion', 'uintle:8'),
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('MinorLinkerVersion', 'uintle:8'),
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('SizeOfCode', 'uintle:32'),
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('SizeOfInitializedData', 'uintle:32'),
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('SizeOfUninitializedData', 'uintle:32'),
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('AddressOfEntryPoint', 'uintle:32'),
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('BaseOfCode', 'uintle:32'),
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]
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_, self.bits_read = parse_items(stream, items, self.items)
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items = []
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if self.items['Magic'] == 0x10b: # PE32
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items += [('BaseOfData', 'uintle:32')]
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address_size = 'uintle:64' if self.items['Magic'] == 0x20b else 'uintle:32'
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items += [
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('ImageBase', address_size),
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('SectionAlignment', 'uintle:32'),
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('FileAlignment', 'uintle:32'),
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('MajorOperatingSystemVersion', 'uintle:16'),
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('MinorOperatingSystemVersion', 'uintle:16'),
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('MajorImageVersion', 'uintle:16'),
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('MinorImageVersion', 'uintle:16'),
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('MajorSubsystemVersion', 'uintle:16'),
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('MinorSubsystemVersion', 'uintle:16'),
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('Win32VersionValue', 'uintle:32'),
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('SizeOfImage', 'uintle:32'),
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('SizeOfHeaders', 'uintle:32'),
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('CheckSum', 'uintle:32'),
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('Subsystem', 'uintle:16'),
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('DllCharacteristics', 'uintle:16'),
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('SizeOfStackReserve', address_size),
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('SizeOfStackCommit', address_size),
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('SizeOfHeapReserve', address_size),
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('SizeOfHeapCommit', address_size),
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('LoaderFlags', 'uintle:32'),
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('NumberOfRvaAndSizes', 'uintle:32'),
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]
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if size > 28:
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_, bits_read = parse_items(stream, items, self.items)
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self.bits_read += bits_read
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if 'NumberOfRvaAndSizes' in self.items:
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index = 0
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self.items['Data Directories'] = dict()
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while self.bits_read / 8 < size:
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d = self.items['Data Directories'][COFF_DATA_DIRECTORY_TYPES[index]] = dict()
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_, bits_read = parse_items(stream, [('VirtualAddress', 'uintle:32'), ('Size', 'uintle:32')], d)
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self.bits_read += bits_read
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index += 1
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class COFFFileHeader:
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def __init__(self, stream):
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self.items = {}
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self.section_headers = []
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items = [
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('Machine', 'uintle:16'),
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('NumberOfSections', 'uintle:16'),
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@ -159,106 +277,178 @@ class COFFFileHeader:
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('SizeOfOptionalHeader', 'uintle:16'),
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('Characteristics', 'uintle:16')
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]
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self.items = {}
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_, self.bits_read = parseItems(stream, items, self.items)
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_, self.bits_read = parse_items(stream, items, self.items)
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#skip over optional header.
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if self.items['SizeOfOptionalHeader'] > 0:
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stream.read(self.items['SizeOfOptionalHeader'] * 8)
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self.bits_read += self.items['SizeOfOptionalHeader'] * 8
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self.OptionalHeader = OptionalHeader(stream, self.items['SizeOfOptionalHeader'])
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self.bits_read += self.OptionalHeader.bits_read
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#start reading section headers
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numberOfSections = self.items['NumberOfSections']
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self.codeSectionHeaders = []
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# start reading section headers
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num_sections = self.items['NumberOfSections']
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while numberOfSections > 0 :
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sectionHeader = SectionHeader(stream)
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if (sectionHeader.items['Characteristics'] & 0x20000000) == 0x20000000:
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self.codeSectionHeaders.append(sectionHeader)
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numberOfSections -= 1
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while num_sections > 0 :
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section_header = SectionHeader(stream)
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self.bits_read += section_header.bits_read
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self.section_headers.append(section_header)
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num_sections -= 1
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self.codeSectionHeaders.sort(key=lambda header: header.offset)
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self.section_headers.sort(key=lambda header: header.offset)
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# Read Relocations
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self.process_relocs(stream)
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def process_relocs(self, stream):
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reloc_table = chained_safe_get(self.OptionalHeader.items, ['Data Directories', 'Base Relocation Table'])
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if reloc_table is None: return
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orig_pos = stream.bitpos
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_, stream.bytepos = self.get_rva_section(reloc_table['VirtualAddress'])
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end_pos = stream.bitpos + reloc_table['Size'] * 8
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while stream.bitpos < end_pos:
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page_rva = stream.read('uintle:32')
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block_size = stream.read('uintle:32')
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for i in range(0, int((block_size - 8) / 2)):
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data = stream.read('uintle:16')
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typ = data >> 12
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offset = data & 0xFFF
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if offset == 0 and i > 0: continue
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assert(typ == 3)
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cur_pos = stream.bitpos
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sh, value_bytepos = self.get_rva_section(page_rva + offset)
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stream.bytepos = value_bytepos
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value = stream.read('uintle:32')
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# remove BaseAddress
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value -= self.OptionalHeader.items['ImageBase']
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stream.overwrite(bitstring.BitArray(uint=value, length=4 * 8), pos=value_bytepos * 8)
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stream.pos = cur_pos
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stream.bitpos = orig_pos
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def get_rva_section(self, rva):
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for sh in self.section_headers:
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if rva < sh.items['VirtualAddress'] or rva >= sh.items['VirtualAddress'] + sh.items['VirtualSize']:
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continue
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file_pointer = rva - sh.items['VirtualAddress'] + sh.items['PointerToRawData']
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return sh, file_pointer
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raise Exception('Could not match RVA to section')
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def create_temp_file(suffix=""):
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fd, path = tempfile.mkstemp(suffix=suffix)
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os.close(fd)
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return path
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# TIPS:
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# How to convert PFX to PEM: openssl pkcs12 -in build/certificates/testPKI/IV.pfx -out build/certificates/testPKI/IV.cert.pem
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def main():
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parser = argparse.ArgumentParser(description='PE/COFF Parser.')
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parser = argparse.ArgumentParser(description='PE/COFF Signer')
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parser.add_argument('-input', required=True, help="File to parse.")
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parser.add_argument('-output', required=True, help="File to write to.")
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parser.add_argument('-openssl_path',help="Path to OpenSSL to create signed voucher")
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parser.add_argument('-signer_cert',help="Path to certificate to use to sign voucher. Must be PEM encoded.")
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parser.add_argument('-verbose', action='store_true', help="Verbose output.")
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app_args = parser.parse_args()
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stream = bitstring.ConstBitStream(filename=app_args.input)
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# to simplify relocation handling we use a mutable BitStream so we can remove
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# the BaseAddress from each relocation
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stream = bitstring.BitStream(filename=app_args.input)
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# find the COFF header.
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# skip forward past the MSDOS stub header to 0x3c.
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stream.bytepos = 0x3c
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# read 4 bytes, this is the file offset of the PE signature.
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peSignatureOffset = stream.read('uintle:32')
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stream.bytepos = peSignatureOffset
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pe_sig_offset = stream.read('uintle:32')
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stream.bytepos = pe_sig_offset
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#read 4 bytes, make sure it's a PE signature.
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# read 4 bytes, make sure it's a PE signature.
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signature = stream.read('uintle:32')
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if signature != 0x00004550 :
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return
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if signature != 0x00004550:
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raise Exception("Invalid File")
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# after signature is the actual COFF file header.
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coff_header = COFFFileHeader(stream)
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archDigest = ArchitectureDigest()
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arch_digest = ArchitectureDigest()
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if coff_header.items['Machine'] == 0x14c:
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arch_digest.setComponentByName('cpuType', CPUType('IMAGE_FILE_MACHINE_I386'))
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elif coff_header.items['Machine'] == 0x8664:
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arch_digest.setComponentByName('cpuType', CPUType('IMAGE_FILE_MACHINE_AMD64'))
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codeSegmentDigests = SetOfCodeSegmentDigest()
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codeSegmentIdx = 0
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arch_digest.setComponentByName('cpuSubType', CPUSubType('IMAGE_UNUSED'))
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#after signature is the actual COFF file header.
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coffFileHeader = COFFFileHeader(stream)
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text_section_headers = list(filter(lambda x: (x.items['Characteristics'] & 0x20000000) == 0x20000000, coff_header.section_headers))
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if coffFileHeader.items['Machine'] == 0x14c:
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archDigest.setComponentByName('cpuType', CPUType('IMAGE_FILE_MACHINE_I386'))
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elif coffFileHeader.items['Machine'] == 0x8664:
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archDigest.setComponentByName('cpuType', CPUType('IMAGE_FILE_MACHINE_AMD64'))
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archDigest.setComponentByName('cpuSubType', 0)
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for codeSectionHeader in coffFileHeader.codeSectionHeaders:
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stream.bytepos = codeSectionHeader.offset
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codeSectionBytes = stream.read('bytes:'+ str(codeSectionHeader.items['SizeOfRawData']))
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if codeSectionHeader.items['SizeOfRawData'] < codeSectionHeader.items['VirtualSize']:
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#zero pad up to virtualSize
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codeSectionBytes += "\0" * (codeSectionHeader.items['VirtualSize']-codeSectionHeader.items['SizeOfRawData'])
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code_segment_digests = SetOfCodeSegmentDigest()
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code_segment_idx = 0
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for code_sect_header in text_section_headers:
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stream.bytepos = code_sect_header.offset
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code_sect_bytes = stream.read('bytes:' + str(code_sect_header.items['VirtualSize']))
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digester = hashlib.sha256()
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digester.update(codeSectionBytes)
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digester.update(code_sect_bytes)
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digest = digester.digest()
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codeSectionDigest = CodeSectionDigest()
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codeSectionDigest.setComponentByName('offset', codeSectionHeader.offset)
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codeSectionDigest.setComponentByName('digestAlgorithm', univ.ObjectIdentifier('2.16.840.1.101.3.4.2.1'))
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codeSectionDigest.setComponentByName('digest', univ.OctetString(digest))
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# with open('segment_' + str(code_sect_header.offset) + ".bin", 'wb') as f:
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# f.write(code_sect_bytes)
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setOfDigest = SetOfCodeSectionDigest()
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setOfDigest.setComponentByPosition(0, codeSectionDigest)
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code_section_digest = CodeSectionDigest()
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code_section_digest.setComponentByName('offset', code_sect_header.offset)
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code_section_digest.setComponentByName('digestAlgorithm', univ.ObjectIdentifier('2.16.840.1.101.3.4.2.1'))
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code_section_digest.setComponentByName('digest', univ.OctetString(digest))
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set_of_digest = SetOfCodeSectionDigest()
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set_of_digest.setComponentByPosition(0, code_section_digest)
|
||||
|
||||
codeSegmentDigest = CodeSegmentDigest()
|
||||
codeSegmentDigest.setComponentByName('offset', codeSectionHeader.offset)
|
||||
codeSegmentDigest.setComponentByName('codeSectionDigests', setOfDigest)
|
||||
codeSegmentDigest.setComponentByName('offset', code_sect_header.offset)
|
||||
codeSegmentDigest.setComponentByName('codeSectionDigests', set_of_digest)
|
||||
|
||||
codeSegmentDigests.setComponentByPosition(codeSegmentIdx, codeSegmentDigest)
|
||||
codeSegmentIdx += 1
|
||||
code_segment_digests.setComponentByPosition(code_segment_idx, codeSegmentDigest)
|
||||
code_segment_idx += 1
|
||||
|
||||
archDigest.setComponentByName('CodeSegmentDigests', codeSegmentDigests)
|
||||
arch_digest.setComponentByName('CodeSegmentDigests', code_segment_digests)
|
||||
|
||||
setOfArchDigests = SetOfArchitectureDigest()
|
||||
setOfArchDigests.setComponentByPosition(0, archDigest)
|
||||
setOfArchDigests.setComponentByPosition(0, arch_digest)
|
||||
|
||||
appDigest = ApplicationDigest()
|
||||
|
||||
appDigest.setComponentByName('version', 1)
|
||||
appDigest.setComponentByName('digests', setOfArchDigests)
|
||||
|
||||
binaryDigest = encoder.encode(appDigest)
|
||||
binaryDigest = der_encoder.encode(appDigest)
|
||||
|
||||
outFile = open(app_args.output, 'wb')
|
||||
outFile.write(binaryDigest)
|
||||
with open(app_args.output, 'wb') as f:
|
||||
f.write(binaryDigest)
|
||||
|
||||
# sign with openssl if specified
|
||||
if app_args.openssl_path is not None:
|
||||
assert app_args.signer_cert is not None
|
||||
|
||||
out_base, out_ext = os.path.splitext(app_args.output)
|
||||
signed_path = out_base + ".signed" + out_ext
|
||||
|
||||
# http://stackoverflow.com/questions/12507277/how-to-fix-unable-to-write-random-state-in-openssl
|
||||
temp_file = None
|
||||
if sys.platform == "win32" and "RANDFILE" not in os.environ:
|
||||
temp_file = create_temp_file()
|
||||
os.environ["RANDFILE"] = temp_file
|
||||
|
||||
try:
|
||||
subprocess.check_call([app_args.openssl_path, "cms", "-sign", "-nodetach", "-md", "sha256", "-binary", "-in", app_args.output, "-outform", "der", "-out", signed_path, "-signer", app_args.signer_cert], )
|
||||
finally:
|
||||
if temp_file is not None:
|
||||
del os.environ["RANDFILE"]
|
||||
os.unlink(temp_file)
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
||||
Loading…
Reference in New Issue
Block a user