mirror of
https://github.com/dashpay/dash.git
synced 2024-12-28 21:42:47 +01:00
272 lines
9.5 KiB
Python
Executable File
272 lines
9.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2014 Wladimir J. van der Laan
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
'''
|
|
A script to check that the (Linux) executables produced by Gitian only contain
|
|
allowed gcc and glibc version symbols. This makes sure they are still compatible
|
|
with the minimum supported Linux distribution versions.
|
|
|
|
Example usage:
|
|
|
|
find ../gitian-builder/build -type f -executable | xargs python3 contrib/devtools/symbol-check.py
|
|
'''
|
|
import subprocess
|
|
import re
|
|
import sys
|
|
import os
|
|
from typing import List, Optional, Tuple
|
|
|
|
# Debian 8 (Jessie) EOL: 2020. https://wiki.debian.org/DebianReleases#Production_Releases
|
|
#
|
|
# - g++ version 4.9.2 (https://packages.debian.org/search?suite=jessie&arch=any&searchon=names&keywords=g%2B%2B)
|
|
# - libc version 2.19 (https://packages.debian.org/search?suite=jessie&arch=any&searchon=names&keywords=libc6)
|
|
#
|
|
# Ubuntu 16.04 (Xenial) EOL: 2024. https://wiki.ubuntu.com/Releases
|
|
#
|
|
# - g++ version 5.3.1 (https://packages.ubuntu.com/search?keywords=g%2B%2B&searchon=names&suite=xenial§ion=all)
|
|
# - libc version 2.23.0 (https://packages.ubuntu.com/search?keywords=libc6&searchon=names&suite=xenial§ion=all)
|
|
#
|
|
# CentOS 7 EOL: 2024. https://wiki.centos.org/FAQ/General
|
|
#
|
|
# - g++ version 4.8.5 (http://mirror.centos.org/centos/7/os/x86_64/Packages/)
|
|
# - libc version 2.17 (http://mirror.centos.org/centos/7/os/x86_64/Packages/)
|
|
#
|
|
# Taking the minimum of these as our target.
|
|
#
|
|
# According to GNU ABI document (https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html) this corresponds to:
|
|
# GCC 4.8.5: GCC_4.8.0
|
|
# (glibc) GLIBC_2_17
|
|
#
|
|
MAX_VERSIONS = {
|
|
'GCC': (4,8,0),
|
|
'GLIBC': (2,17),
|
|
'LIBATOMIC': (1,0),
|
|
'V': (0,5,0), # xkb (bitcoin-qt only)
|
|
}
|
|
# See here for a description of _IO_stdin_used:
|
|
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=634261#109
|
|
|
|
# Ignore symbols that are exported as part of every executable
|
|
IGNORE_EXPORTS = {
|
|
'_edata', '_end', '__end__', '_init', '__bss_start', '__bss_start__', '_bss_end__', '__bss_end__', '_fini', '_IO_stdin_used', 'stdin', 'stdout', 'stderr',
|
|
'environ', '_environ', '__environ',
|
|
}
|
|
READELF_CMD = os.getenv('READELF', '/usr/bin/readelf')
|
|
CPPFILT_CMD = os.getenv('CPPFILT', '/usr/bin/c++filt')
|
|
OTOOL_CMD = os.getenv('OTOOL', '/usr/bin/otool')
|
|
|
|
# Allowed NEEDED libraries
|
|
ELF_ALLOWED_LIBRARIES = {
|
|
# dashd and dash-qt
|
|
'libgcc_s.so.1', # GCC base support
|
|
'libc.so.6', # C library
|
|
'libpthread.so.0', # threading
|
|
'libm.so.6', # math library
|
|
'librt.so.1', # real-time (clock)
|
|
'libatomic.so.1',
|
|
'ld-linux-x86-64.so.2', # 64-bit dynamic linker
|
|
'ld-linux.so.2', # 32-bit dynamic linker
|
|
'ld-linux-aarch64.so.1', # 64-bit ARM dynamic linker
|
|
'ld-linux-armhf.so.3', # 32-bit ARM dynamic linker
|
|
'ld-linux-riscv64-lp64d.so.1', # 64-bit RISC-V dynamic linker
|
|
# dash-qt only
|
|
'libxcb.so.1', # part of X11
|
|
'libxkbcommon.so.0', # keyboard keymapping
|
|
'libxkbcommon-x11.so.0', # keyboard keymapping
|
|
'libfontconfig.so.1', # font support
|
|
'libfreetype.so.6', # font parsing
|
|
'libdl.so.2' # programming interface to dynamic linker
|
|
}
|
|
ARCH_MIN_GLIBC_VER = {
|
|
'80386': (2,1),
|
|
'X86-64': (2,2,5),
|
|
'ARM': (2,4),
|
|
'AArch64':(2,17),
|
|
'RISC-V': (2,27)
|
|
}
|
|
|
|
MACHO_ALLOWED_LIBRARIES = {
|
|
# bitcoind and bitcoin-qt
|
|
'libc++.1.dylib', # C++ Standard Library
|
|
'libSystem.B.dylib', # libc, libm, libpthread, libinfo
|
|
# bitcoin-qt only
|
|
'AppKit', # user interface
|
|
'ApplicationServices', # common application tasks.
|
|
'Carbon', # deprecated c back-compat API
|
|
'CoreFoundation', # low level func, data types
|
|
'CoreGraphics', # 2D rendering
|
|
'CoreServices', # operating system services
|
|
'CoreText', # interface for laying out text and handling fonts.
|
|
'CoreVideo', # video processing
|
|
'Foundation', # base layer functionality for apps/frameworks
|
|
'ImageIO', # read and write image file formats.
|
|
'IOKit', # user-space access to hardware devices and drivers.
|
|
'IOSurface', # cross process image/drawing buffers
|
|
'libobjc.A.dylib', # Objective-C runtime library
|
|
'Metal', # 3D graphics
|
|
'Security', # access control and authentication
|
|
'QuartzCore', # animation
|
|
}
|
|
|
|
class CPPFilt(object):
|
|
'''
|
|
Demangle C++ symbol names.
|
|
|
|
Use a pipe to the 'c++filt' command.
|
|
'''
|
|
def __init__(self):
|
|
self.proc = subprocess.Popen(CPPFILT_CMD, stdin=subprocess.PIPE, stdout=subprocess.PIPE, universal_newlines=True)
|
|
|
|
def __call__(self, mangled):
|
|
self.proc.stdin.write(mangled + '\n')
|
|
self.proc.stdin.flush()
|
|
return self.proc.stdout.readline().rstrip()
|
|
|
|
def close(self):
|
|
self.proc.stdin.close()
|
|
self.proc.stdout.close()
|
|
self.proc.wait()
|
|
|
|
def read_symbols(executable, imports=True) -> List[Tuple[str, str, str]]:
|
|
'''
|
|
Parse an ELF executable and return a list of (symbol,version, arch) tuples
|
|
for dynamic, imported symbols.
|
|
'''
|
|
p = subprocess.Popen([READELF_CMD, '--dyn-syms', '-W', '-h', executable], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, universal_newlines=True)
|
|
(stdout, stderr) = p.communicate()
|
|
if p.returncode:
|
|
raise IOError('Could not read symbols for {}: {}'.format(executable, stderr.strip()))
|
|
syms = []
|
|
for line in stdout.splitlines():
|
|
line = line.split()
|
|
if 'Machine:' in line:
|
|
arch = line[-1]
|
|
if len(line)>7 and re.match('[0-9]+:$', line[0]):
|
|
(sym, _, version) = line[7].partition('@')
|
|
is_import = line[6] == 'UND'
|
|
if version.startswith('@'):
|
|
version = version[1:]
|
|
if is_import == imports:
|
|
syms.append((sym, version, arch))
|
|
return syms
|
|
|
|
def check_version(max_versions, version, arch) -> bool:
|
|
if '_' in version:
|
|
(lib, _, ver) = version.rpartition('_')
|
|
else:
|
|
lib = version
|
|
ver = '0'
|
|
ver = tuple([int(x) for x in ver.split('.')])
|
|
if not lib in max_versions:
|
|
return False
|
|
return ver <= max_versions[lib] or lib == 'GLIBC' and ver <= ARCH_MIN_GLIBC_VER[arch]
|
|
|
|
def elf_read_libraries(filename) -> List[str]:
|
|
p = subprocess.Popen([READELF_CMD, '-d', '-W', filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, universal_newlines=True)
|
|
(stdout, stderr) = p.communicate()
|
|
if p.returncode:
|
|
raise IOError('Error opening file')
|
|
libraries = []
|
|
for line in stdout.splitlines():
|
|
tokens = line.split()
|
|
if len(tokens)>2 and tokens[1] == '(NEEDED)':
|
|
match = re.match(r'^Shared library: \[(.*)\]$', ' '.join(tokens[2:]))
|
|
if match:
|
|
libraries.append(match.group(1))
|
|
else:
|
|
raise ValueError('Unparseable (NEEDED) specification')
|
|
return libraries
|
|
|
|
def check_imported_symbols(filename) -> bool:
|
|
cppfilt = CPPFilt()
|
|
ok = True
|
|
for sym, version, arch in read_symbols(filename, True):
|
|
if version and not check_version(MAX_VERSIONS, version, arch):
|
|
print('{}: symbol {} from unsupported version {}'.format(filename, cppfilt(sym), version))
|
|
ok = False
|
|
return ok
|
|
|
|
def check_exported_symbols(filename) -> bool:
|
|
cppfilt = CPPFilt()
|
|
ok = True
|
|
for sym,version,arch in read_symbols(filename, False):
|
|
if arch == 'RISC-V' or sym in IGNORE_EXPORTS:
|
|
continue
|
|
print('{}: export of symbol {} not allowed'.format(filename, cppfilt(sym)))
|
|
ok = False
|
|
return ok
|
|
|
|
def check_ELF_libraries(filename) -> bool:
|
|
ok = True
|
|
for library_name in elf_read_libraries(filename):
|
|
if library_name not in ELF_ALLOWED_LIBRARIES:
|
|
print('{}: NEEDED library {} is not allowed'.format(filename, library_name))
|
|
ok = False
|
|
return ok
|
|
|
|
def macho_read_libraries(filename) -> List[str]:
|
|
p = subprocess.Popen([OTOOL_CMD, '-L', filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE, universal_newlines=True)
|
|
(stdout, stderr) = p.communicate()
|
|
if p.returncode:
|
|
raise IOError('Error opening file')
|
|
libraries = []
|
|
for line in stdout.splitlines():
|
|
tokens = line.split()
|
|
if len(tokens) == 1: # skip executable name
|
|
continue
|
|
libraries.append(tokens[0].split('/')[-1])
|
|
return libraries
|
|
|
|
def check_MACHO_libraries(filename) -> bool:
|
|
ok = True
|
|
for dylib in macho_read_libraries(filename):
|
|
if dylib not in MACHO_ALLOWED_LIBRARIES:
|
|
print('{} is not in ALLOWED_LIBRARIES!'.format(dylib))
|
|
ok = False
|
|
return ok
|
|
|
|
CHECKS = {
|
|
'ELF': [
|
|
('IMPORTED_SYMBOLS', check_imported_symbols),
|
|
('EXPORTED_SYMBOLS', check_exported_symbols),
|
|
('LIBRARY_DEPENDENCIES', check_ELF_libraries)
|
|
],
|
|
'MACHO': [
|
|
('DYNAMIC_LIBRARIES', check_MACHO_libraries)
|
|
]
|
|
}
|
|
|
|
def identify_executable(executable) -> Optional[str]:
|
|
with open(filename, 'rb') as f:
|
|
magic = f.read(4)
|
|
if magic.startswith(b'MZ'):
|
|
return 'PE'
|
|
elif magic.startswith(b'\x7fELF'):
|
|
return 'ELF'
|
|
elif magic.startswith(b'\xcf\xfa'):
|
|
return 'MACHO'
|
|
return None
|
|
|
|
if __name__ == '__main__':
|
|
retval = 0
|
|
for filename in sys.argv[1:]:
|
|
try:
|
|
etype = identify_executable(filename)
|
|
if etype is None:
|
|
print('{}: unknown format'.format(filename))
|
|
retval = 1
|
|
continue
|
|
|
|
failed = []
|
|
for (name, func) in CHECKS[etype]:
|
|
if not func(filename):
|
|
failed.append(name)
|
|
if failed:
|
|
print('{}: failed {}'.format(filename, ' '.join(failed)))
|
|
retval = 1
|
|
except IOError:
|
|
print('{}: cannot open'.format(filename))
|
|
retval = 1
|
|
sys.exit(retval)
|