mirror of https://github.com/google/oss-fuzz.git
89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
# Copyright 2021 Google LLC
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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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"""Script for running CIFuzz end-to-end. This is meant to work outside any
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docker image. This cannot depend on any CIFuzz code or third party packages."""
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import os
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import subprocess
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import sys
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import tempfile
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import logging
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INFRA_DIR = os.path.dirname(os.path.dirname(__file__))
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DEFAULT_ENVS = [('DRY_RUN', '0'), ('SANITIZER', 'address')]
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BASE_CIFUZZ_DOCKER_TAG = 'gcr.io/oss-fuzz-base'
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def set_default_env_var_if_unset(env_var, default_value):
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"""Sets the value of |env_var| in the environment to |default_value| if it was
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not already set."""
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if env_var not in os.environ:
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os.environ[env_var] = default_value
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def docker_run(name, workspace, project_src_path):
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"""Runs a CIFuzz docker container with |name|."""
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command = [
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'docker', 'run', '--name', name, '--rm', '-e', 'PROJECT_SRC_PATH', '-e',
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'OSS_FUZZ_PROJECT_NAME', '-e', 'WORKSPACE', '-e', 'REPOSITORY', '-e',
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'DRY_RUN', '-e', 'CI', '-e', 'SANITIZER', '-e', 'GIT_SHA'
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]
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if project_src_path:
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command += ['-v', f'{project_src_path}:{project_src_path}']
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command += [
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'-v', '/var/run/docker.sock:/var/run/docker.sock', '-v',
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f'{workspace}:{workspace}', f'{BASE_CIFUZZ_DOCKER_TAG}/{name}'
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]
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print('Running docker command:', command)
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subprocess.run(command, check=True)
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def docker_build(image):
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"""Builds the CIFuzz |image|. Only suitable for building CIFuzz images."""
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command = [
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'docker', 'build', '-t', f'{BASE_CIFUZZ_DOCKER_TAG}/{image}', '--file',
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f'{image}.Dockerfile', '.'
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]
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subprocess.run(command, check=True, cwd=INFRA_DIR)
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def main():
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"""Builds and runs fuzzers using CIFuzz."""
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for env_var, default_value in DEFAULT_ENVS:
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set_default_env_var_if_unset(env_var, default_value)
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repository = os.getenv('REPOSITORY')
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assert repository
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project_src_path = os.getenv('PROJECT_SRC_PATH')
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with tempfile.TemporaryDirectory() as temp_dir:
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if 'WORKSPACE' not in os.environ:
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os.environ['WORKSPACE'] = temp_dir
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workspace = os.environ['WORKSPACE']
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docker_build('build_fuzzers')
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docker_run('build_fuzzers', workspace, project_src_path)
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docker_build('run_fuzzers')
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try:
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docker_run('run_fuzzers', workspace, project_src_path)
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except subprocess.CalledProcessError:
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logging.error('run_fuzzers failed.')
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return 1
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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