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import sudo
import os
VERSION = 1.0
class SudoAuditPlugin(sudo.Plugin):
def __init__(self, plugin_options, user_info, **kwargs):
# For loading multiple times, an optional "Id" can be specified
# as argument to identify the log lines
plugin_id = sudo.options_as_dict(plugin_options).get("Id", "")
self._log_line_prefix = "(AUDIT{}) ".format(plugin_id)
user_info_dict = sudo.options_as_dict(user_info)
user = user_info_dict.get("user", "???")
uid = user_info_dict.get("uid", "???")
self._log("-- Started by user {} ({}) -- ".format(user, uid))
def __del__(self):
self._log("-- Finished --")
def open(self, submit_optind: int, submit_argv: tuple) -> int:
# To cut out the sudo options, use "submit_optind":
program_args = submit_argv[submit_optind:]
if program_args:
self._log("Requested command: " + " ".join(program_args))
def accept(self, plugin_name, plugin_type,
command_info, run_argv, run_envp) -> int:
info = sudo.options_as_dict(command_info)
cmd = list(run_argv)
cmd[0] = info.get("command")
self._log("Accepted command: {}".format(" ".join(cmd)))
self._log(" By the plugin: {} (type={})".format(
plugin_name, self.__plugin_type_str(plugin_type)))
self._log(" Environment: " + " ".join(run_envp))
def reject(self, plugin_name, plugin_type, audit_msg, command_info) -> int:
self._log("Rejected by plugin {} (type={}): {}".format(
plugin_name, self.__plugin_type_str(plugin_type), audit_msg))
def error(self, plugin_name, plugin_type, audit_msg, command_info) -> int:
self._log("Plugin {} (type={}) got an error: {}".format(
plugin_name, self.__plugin_type_str(plugin_type), audit_msg))
def close(self, status_kind: int, status: int) -> None:
if status_kind == sudo.EXIT_REASON.NO_STATUS:
self._log("The command was not executed")
elif status_kind == sudo.EXIT_REASON.WAIT_STATUS:
if os.WIFEXITED(status):
self._log("Command returned with exit code "
"{}".format(os.WEXITSTATUS(status)))
elif os.WIFSIGNALED(status):
self._log("Command exited due to signal "
"{}".format(os.WTERMSIG(status)))
else:
raise sudo.PluginError("Failed to understand wait exit status")
elif status_kind == sudo.EXIT_REASON.EXEC_ERROR:
self._log("Sudo has failed to execute the command, "
"execve returned {}".format(status))
elif status_kind == sudo.EXIT_REASON.SUDO_ERROR:
self._log("Sudo has run into an error: {}".format(status))
else:
raise Exception("Command returned unknown status kind {}".format(
status_kind))
def show_version(self, is_verbose: bool) -> int:
version_str = " (version=1.0)" if is_verbose else ""
sudo.log_info("Python Example Audit Plugin" + version_str)
def _log(self, string):
# For the example, we just log to output (this could be a file)
sudo.log_info(self._log_line_prefix, string)
@staticmethod
def __plugin_type_str(plugin_type):
return sudo.PLUGIN_TYPE(plugin_type).name
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