# Copyright (C) 2019-2020 Gonéri Le Bouder # # This file is part of cloud-init. See LICENSE file for license information. import functools import logging import os import platform from typing import Any import cloudinit.distros.bsd from cloudinit import subp, util try: import crypt # pylint: disable=W4901 salt = crypt.METHOD_BLOWFISH # pylint: disable=E1101 blowfish_hash: Any = functools.partial( crypt.crypt, salt=crypt.mksalt(salt), ) except (ImportError, AttributeError): try: from passlib.hash import bcrypt blowfish_hash = bcrypt.hash except ImportError: def blowfish_hash(_): """Raise when called so that importing this module doesn't throw ImportError when this module is not used. In this case, crypt and passlib are not needed. """ raise ImportError( "crypt and passlib not found, missing dependency" ) LOG = logging.getLogger(__name__) class NetBSD(cloudinit.distros.bsd.BSD): """ Distro subclass for NetBSD. (N.B. OpenBSD inherits from this class.) """ ci_sudoers_fn = "/usr/pkg/etc/sudoers.d/90-cloud-init-users" group_add_cmd_prefix = ["groupadd"] # For NetBSD (from https://man.netbsd.org/passwd.5) a password field # value of either "" or "*************" (13 "*") indicates no password, # a password field prefixed with "*LOCKED*" indicates a locked # password, and a password field of "*LOCKED*" followed by 13 "*" # indicates a locked and blank password. shadow_empty_locked_passwd_patterns = [ r"^{username}::", r"^{username}:\*\*\*\*\*\*\*\*\*\*\*\*\*:", r"^{username}:\*LOCKED\*\*\*\*\*\*\*\*\*\*\*\*\*\*:", ] def __init__(self, name, cfg, paths): super().__init__(name, cfg, paths) if os.path.exists("/usr/pkg/bin/pkgin"): self.pkg_cmd_install_prefix = ["pkgin", "-y", "install"] self.pkg_cmd_remove_prefix = ["pkgin", "-y", "remove"] self.pkg_cmd_update_prefix = ["pkgin", "-y", "update"] self.pkg_cmd_upgrade_prefix = ["pkgin", "-y", "full-upgrade"] else: self.pkg_cmd_install_prefix = ["pkg_add", "-U"] self.pkg_cmd_remove_prefix = ["pkg_delete"] def _get_add_member_to_group_cmd(self, member_name, group_name): return ["usermod", "-G", group_name, member_name] def add_user(self, name, **kwargs) -> bool: """ Add a user to the system using standard tools Returns False if user already exists, otherwise True. """ if util.is_user(name): LOG.info("User %s already exists, skipping.", name) return False adduser_cmd = ["useradd"] log_adduser_cmd = ["useradd"] adduser_opts = { "homedir": "-d", "gecos": "-c", "primary_group": "-g", "groups": "-G", "shell": "-s", } adduser_flags = { "no_user_group": "--no-user-group", "system": "--system", "no_log_init": "--no-log-init", } for key, val in kwargs.items(): if key in adduser_opts and val and isinstance(val, str): adduser_cmd.extend([adduser_opts[key], val]) elif key in adduser_flags and val: adduser_cmd.append(adduser_flags[key]) log_adduser_cmd.append(adduser_flags[key]) if "no_create_home" not in kwargs or "system" not in kwargs: adduser_cmd += ["-m"] log_adduser_cmd += ["-m"] adduser_cmd += [name] log_adduser_cmd += [name] # Run the command LOG.info("Adding user %s", name) try: subp.subp(adduser_cmd, logstring=log_adduser_cmd) except Exception: util.logexc(LOG, "Failed to create user %s", name) raise # Set the password if it is provided # For security consideration, only hashed passwd is assumed passwd_val = kwargs.get("passwd", None) if passwd_val is not None: self.set_passwd(name, passwd_val, hashed=True) # Indicate that a new user was created return True def set_passwd(self, user, passwd, hashed=False): if hashed: hashed_pw = passwd else: hashed_pw = blowfish_hash(passwd) try: subp.subp(["usermod", "-p", hashed_pw, user]) except Exception: util.logexc(LOG, "Failed to set password for %s", user) raise self.unlock_passwd(user) def lock_passwd(self, name): try: subp.subp(["usermod", "-C", "yes", name]) except Exception: util.logexc(LOG, "Failed to lock user %s", name) raise def unlock_passwd(self, name): try: subp.subp(["usermod", "-C", "no", name]) except Exception: util.logexc(LOG, "Failed to unlock user %s", name) raise def apply_locale(self, locale, out_fn=None): LOG.debug("Cannot set the locale.") def _get_pkg_cmd_environ(self): """Return env vars used in NetBSD package_command operations""" os_release = platform.release() os_arch = platform.machine() return { "PKG_PATH": ( f"http://cdn.netbsd.org/pub/pkgsrc/packages/NetBSD" f"/{os_arch}/{os_release}/All" ) } def update_package_sources(self, *, force=False): pass class Distro(NetBSD): pass