diff options
Diffstat (limited to 'elivepatch_server/resources/livepatch.py')
| -rw-r--r-- | elivepatch_server/resources/livepatch.py | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/elivepatch_server/resources/livepatch.py b/elivepatch_server/resources/livepatch.py deleted file mode 100644 index d499d9b..0000000 --- a/elivepatch_server/resources/livepatch.py +++ /dev/null @@ -1,134 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- - -# (c) 2017, Alice Ferrazzi <alice.ferrazzi@gmail.com> -# Distributed under the terms of the GNU General Public License v2 or later - -import subprocess -import os -import fileinput -import tempfile - - -class PaTch(object): - - def __init__(self): - pass - - def build_livepatch(self, uuid, vmlinux, debug=True): - """ - Function for building the livepatch - - :param uuid: UUID session identification - :param vmlinux: path to the vmlinux file - :param debug: copy build.log in the uuid directory - :return: void - """ - kernel_source = os.path.join('/tmp/', 'elivepatch-' + uuid, 'usr/src/linux/') - uuid_dir = os.path.join('/tmp/', 'elivepatch-' + uuid) - vmlinux_source = os.path.join(kernel_source, vmlinux) - kpatch_cachedir = os.path.join(uuid_dir, 'kpatch') - - os.makedirs(kpatch_cachedir) - if not os.path.isfile(vmlinux_source): - self.build_kernel(uuid) - - bashCommand = ['kpatch-build'] - bashCommand.extend(['-s', kernel_source]) - bashCommand.extend(['-v', vmlinux_source]) - bashCommand.extend(['-c', 'config']) - bashCommand.extend(['main.patch']) - bashCommand.extend(['--skip-gcc-check']) - if debug: - bashCommand.extend(['--skip-cleanup']) - bashCommand.extend(['--debug']) - _command(bashCommand, uuid_dir, {'CACHEDIR': kpatch_cachedir}) - if debug: - _command(['cp', '-f', os.path.join(kpatch_cachedir, 'build.log'), uuid_dir]) - - def get_kernel_sources(self, uuid, kernel_version, debug=True): - """ - Function for download the kernel sources - - :return: void - """ - try: - _command(['git', 'clone', 'https://github.com/aliceinwire/gentoo-sources_overlay.git']) - except: - print('git clone failed.') - - uuid_dir = os.path.join('/tmp/', 'elivepatch-' + uuid) - ebuild_path = os.path.join('gentoo-sources_overlay', 'sys-kernel', 'gentoo-sources', 'gentoo-sources-' + - kernel_version + '.ebuild') - print(ebuild_path) - if os.path.isfile(ebuild_path): - # Use a private tmpdir for portage - with tempfile.TemporaryDirectory(dir=uuid_dir) as portage_tmpdir: - print('uuid_dir: ' + str(uuid_dir) + ' PORTAGE_TMPDIR: ' + str(portage_tmpdir)) - # portage_tmpdir is not always working with root privileges - if debug: - if os.geteuid() != 0: - env = {'ROOT': uuid_dir, 'PORTAGE_CONFIGROOT': uuid_dir, 'PORTAGE_TMPDIR': portage_tmpdir, - 'PORTAGE_DEBUG': '1'} - else: - env = {'ROOT': uuid_dir, 'PORTAGE_CONFIGROOT': uuid_dir, 'PORTAGE_TMPDIR': uuid_dir, - 'PORTAGE_DEBUG': '1'} - else: - if os.geteuid() != 0: - env = {'ROOT': uuid_dir, 'PORTAGE_CONFIGROOT': uuid_dir, 'PORTAGE_TMPDIR': portage_tmpdir} - else: - env = {'ROOT': uuid_dir, 'PORTAGE_CONFIGROOT': uuid_dir, 'PORTAGE_TMPDIR': uuid_dir} - _command(['ebuild', ebuild_path, 'digest', 'clean', 'merge'], env=env) - kernel_sources_status = True - else: - print('ebuild not present') - kernel_sources_status = None - return kernel_sources_status - - def build_kernel(self, uuid): - kernel_source_dir = '/tmp/elivepatch-' + uuid + '/usr/src/linux/' - uuid_dir_config = '/tmp/elivepatch-' + uuid + '/config' - if 'CONFIG_DEBUG_INFO=y' in open(uuid_dir_config).read(): - print("DEBUG_INFO correctly present") - elif 'CONFIG_DEBUG_INFO=n' in open(uuid_dir_config).read(): - print("changing DEBUG_INFO to yes") - for line in fileinput.input(uuid_dir_config, inplace=1): - print(line.replace("CONFIG_DEBUG_INFO=n", "CONFIG_DEBUG_INFO=y")) - else: - print("Adding DEBUG_INFO for getting kernel debug symbols") - for line in fileinput.input(uuid_dir_config, inplace=1): - print(line.replace("# CONFIG_DEBUG_INFO is not set", "CONFIG_DEBUG_INFO=y")) - _command(['cp', '/tmp/elivepatch-' + uuid + '/config', kernel_source_dir + '.config']) - # olddefconfig default everything that is new from the configuration file - _command(['make', 'olddefconfig'], kernel_source_dir) - _command(['make'], kernel_source_dir) - _command(['make', 'modules'], kernel_source_dir) - - -def _command(bashCommand, kernel_source_dir=None, env=None): - """ - Popen override function - - :param bashCommand: List of command arguments to execute - :param kernel_source_dir: String with the directory where the command is executed - :param env: Dictionary for setting system environment variable - :return: void - """ - # Inherit the parent environment and update the private copy - if env: - process_env = os.environ.copy() - process_env.update(env) - env = process_env - - if kernel_source_dir: - print(bashCommand) - process = subprocess.Popen(bashCommand, stdout=subprocess.PIPE, cwd=kernel_source_dir, env=env) - output, error = process.communicate() - for output_line in output.split(b'\n'): - print(output_line.strip()) - else: - print(bashCommand) - process = subprocess.Popen(bashCommand, stdout=subprocess.PIPE, env=env) - output, error = process.communicate() - for output_line in output.split(b'\n'): - print(output_line.strip()) |