# ---------------------------------------------------------------------- # Copyright (C) 2013 Kshitij Gupta # Copyright (C) 2014-2015 Christian Boltz # # This program is free software; you can redistribute it and/or # modify it under the terms of version 2 of the GNU General Public # License as published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # ---------------------------------------------------------------------- # No old version logs, only 2.6 + supported from __future__ import division, with_statement import inspect import os import re import shutil import subprocess import sys import time import traceback import atexit import tempfile import apparmor.config import apparmor.logparser import apparmor.severity from copy import deepcopy from apparmor.common import (AppArmorException, AppArmorBug, open_file_read, valid_path, hasher, open_file_write, convert_regexp, DebugLogger) import apparmor.ui as aaui from apparmor.aamode import (str_to_mode, mode_to_str, contains, split_mode, mode_to_str_user, mode_contains, AA_OTHER, flatten_mode, owner_flatten_mode) from apparmor.regex import (RE_PROFILE_START, RE_PROFILE_END, RE_PROFILE_LINK, RE_PROFILE_ALIAS, RE_PROFILE_BOOLEAN, RE_PROFILE_VARIABLE, RE_PROFILE_CONDITIONAL, RE_PROFILE_CONDITIONAL_VARIABLE, RE_PROFILE_CONDITIONAL_BOOLEAN, RE_PROFILE_BARE_FILE_ENTRY, RE_PROFILE_PATH_ENTRY, RE_PROFILE_CHANGE_HAT, RE_PROFILE_HAT_DEF, RE_PROFILE_DBUS, RE_PROFILE_MOUNT, RE_PROFILE_PIVOT_ROOT, RE_PROFILE_UNIX, RE_RULE_HAS_COMMA, RE_HAS_COMMENT_SPLIT, strip_quotes, parse_profile_start_line, re_match_include ) import apparmor.rules as aarules from apparmor.rule.capability import CapabilityRuleset, CapabilityRule from apparmor.rule.change_profile import ChangeProfileRuleset, ChangeProfileRule from apparmor.rule.network import NetworkRuleset, NetworkRule from apparmor.rule.ptrace import PtraceRuleset, PtraceRule from apparmor.rule.rlimit import RlimitRuleset, RlimitRule from apparmor.rule.signal import SignalRuleset, SignalRule from apparmor.rule import parse_modifiers, quote_if_needed ruletypes = ['capability', 'change_profile', 'network', 'ptrace', 'rlimit', 'signal'] from apparmor.yasti import SendDataToYast, GetDataFromYast, shutdown_yast # setup module translations from apparmor.translations import init_translation _ = init_translation() # Setup logging incase of debugging is enabled debug_logger = DebugLogger('aa') CONFDIR = '/etc/apparmor' running_under_genprof = False unimplemented_warning = False # The database for severity sev_db = None # The file to read log messages from ### Was our logfile = None cfg = None repo_cfg = None parser = None profile_dir = None extra_profile_dir = None ### end our # To keep track of previously included profile fragments include = dict() existing_profiles = dict() seen_events = 0 # was our # To store the globs entered by users so they can be provided again user_globs = [] # The key for representing bare "file," rules ALL = '\0ALL' ## Variables used under logprof ### Were our t = hasher() # dict() transitions = hasher() aa = hasher() # Profiles originally in sd, replace by aa original_aa = hasher() extras = hasher() # Inactive profiles from extras ### end our log = [] pid = dict() seen = hasher() # dir() profile_changes = hasher() prelog = hasher() log_dict = hasher() # dict() changed = dict() created = [] skip = hasher() helpers = dict() # Preserve this between passes # was our ### logprof ends filelist = hasher() # File level variables and stuff in config files def on_exit(): """Shutdowns the logger and records exit if debugging enabled""" debug_logger.debug('Exiting..') debug_logger.shutdown() # Register the on_exit method with atexit atexit.register(on_exit) def check_for_LD_XXX(file): """Returns True if specified program contains references to LD_PRELOAD or LD_LIBRARY_PATH to give the Px/Ux code better suggestions""" if not os.path.isfile(file): return False size = os.stat(file).st_size # Limit to checking files under 100k for the sake of speed if size > 100000: return False with open(file, 'rb') as f_in: for line in f_in: if b'LD_PRELOAD' in line or b'LD_LIBRARY_PATH' in line: return True return False def fatal_error(message): # Get the traceback to the message tb_stack = traceback.format_list(traceback.extract_stack()) tb_stack = ''.join(tb_stack) # Add the traceback to message message = tb_stack + '\n\n' + message debug_logger.error(message) caller = inspect.stack()[1][3] # If caller is SendDataToYast or GetDatFromYast simply exit if caller == 'SendDataToYast' or caller == 'GetDatFromYast': sys.exit(1) # Else tell user what happened aaui.UI_Important(message) shutdown_yast() sys.exit(1) def check_for_apparmor(filesystem='/proc/filesystems', mounts='/proc/mounts'): """Finds and returns the mountpoint for apparmor None otherwise""" support_securityfs = False aa_mountpoint = None if valid_path(filesystem): with open_file_read(filesystem) as f_in: for line in f_in: if 'securityfs' in line: support_securityfs = True break if valid_path(mounts) and support_securityfs: with open_file_read(mounts) as f_in: for line in f_in: split = line.split() if len(split) > 2 and split[2] == 'securityfs': mountpoint = split[1] + '/apparmor' # Check if apparmor is actually mounted there # XXX valid_path() only checks the syntax, but not if the directory exists! if valid_path(mountpoint) and valid_path(mountpoint + '/profiles'): aa_mountpoint = mountpoint break return aa_mountpoint def which(file): """Returns the executable fullpath for the file, None otherwise""" if sys.version_info >= (3, 3): return shutil.which(file) env_dirs = os.getenv('PATH').split(':') for env_dir in env_dirs: env_path = env_dir + '/' + file # Test if the path is executable or not if os.access(env_path, os.X_OK): return env_path return None def get_full_path(original_path): """Return the full path after resolving any symlinks""" path = original_path link_count = 0 if not path.startswith('/'): path = os.getcwd() + '/' + path while os.path.islink(path): link_count += 1 if link_count > 64: fatal_error(_("Followed too many links while resolving %s") % (original_path)) direc, file = os.path.split(path) link = os.readlink(path) # If the link an absolute path if link.startswith('/'): path = link else: # Link is relative path path = direc + '/' + link return os.path.realpath(path) def find_executable(bin_path): """Returns the full executable path for the given executable, None otherwise""" full_bin = None if os.path.exists(bin_path): full_bin = get_full_path(bin_path) else: if '/' not in bin_path: env_bin = which(bin_path) if env_bin: full_bin = get_full_path(env_bin) if full_bin and os.path.exists(full_bin): return full_bin return None def get_profile_filename(profile): """Returns the full profile name""" if existing_profiles.get(profile, False): return existing_profiles[profile] elif profile.startswith('/'): # Remove leading / profile = profile[1:] else: profile = "profile_" + profile profile = profile.replace('/', '.') full_profilename = profile_dir + '/' + profile return full_profilename def name_to_prof_filename(prof_filename): """Returns the profile""" if prof_filename.startswith(profile_dir): profile = prof_filename.split(profile_dir, 1)[1] return (prof_filename, profile) else: bin_path = find_executable(prof_filename) if bin_path: prof_filename = get_profile_filename(bin_path) if os.path.isfile(prof_filename): return (prof_filename, bin_path) return None, None def complain(path): """Sets the profile to complain mode if it exists""" prof_filename, name = name_to_prof_filename(path) if not prof_filename: fatal_error(_("Can't find %s") % path) set_complain(prof_filename, name) def enforce(path): """Sets the profile to enforce mode if it exists""" prof_filename, name = name_to_prof_filename(path) if not prof_filename: fatal_error(_("Can't find %s") % path) set_enforce(prof_filename, name) def set_complain(filename, program): """Sets the profile to complain mode""" aaui.UI_Info(_('Setting %s to complain mode.') % (filename if program is None else program)) # a force-complain symlink is more packaging-friendly, but breaks caching # create_symlink('force-complain', filename) delete_symlink('disable', filename) change_profile_flags(filename, program, 'complain', True) def set_enforce(filename, program): """Sets the profile to enforce mode""" aaui.UI_Info(_('Setting %s to enforce mode.') % (filename if program is None else program)) delete_symlink('force-complain', filename) delete_symlink('disable', filename) change_profile_flags(filename, program, 'complain', False) def delete_symlink(subdir, filename): path = filename link = re.sub('^%s' % profile_dir, '%s/%s' % (profile_dir, subdir), path) if link != path and os.path.islink(link): os.remove(link) def create_symlink(subdir, filename): path = filename bname = os.path.basename(filename) if not bname: raise AppArmorException(_('Unable to find basename for %s.') % filename) #print(filename) link = re.sub('^%s' % profile_dir, '%s/%s' % (profile_dir, subdir), path) #print(link) #link = link + '/%s'%bname #print(link) symlink_dir = os.path.dirname(link) if not os.path.exists(symlink_dir): # If the symlink directory does not exist create it os.makedirs(symlink_dir) if not os.path.exists(link): try: os.symlink(filename, link) except: raise AppArmorException(_('Could not create %(link)s symlink to %(file)s.') % { 'link': link, 'file': filename }) def head(file): """Returns the first/head line of the file""" first = '' if os.path.isfile(file): with open_file_read(file) as f_in: try: first = f_in.readline().rstrip() except UnicodeDecodeError: pass return first else: raise AppArmorException(_('Unable to read first line from %s: File Not Found') % file) def get_output(params): '''Runs the program with the given args and returns the return code and stdout (as list of lines)''' try: # Get the output of the program output = subprocess.check_output(params) ret = 0 except OSError as e: raise AppArmorException(_("Unable to fork: %(program)s\n\t%(error)s") % { 'program': params[0], 'error': str(e) }) except subprocess.CalledProcessError as e: # If exit code != 0 output = e.output ret = e.returncode output = output.decode('utf-8').split('\n') # Remove the extra empty string caused due to \n if present if output[len(output) - 1] == '': output.pop() return (ret, output) def get_reqs(file): """Returns a list of paths from ldd output""" pattern1 = re.compile('^\s*\S+ => (\/\S+)') pattern2 = re.compile('^\s*(\/\S+)') reqs = [] ldd = conf.find_first_file(cfg['settings'].get('ldd')) or '/usr/bin/ldd' if not os.path.isfile(ldd) or not os.access(ldd, os.EX_OK): raise AppArmorException('Can\'t find ldd') ret, ldd_out = get_output([ldd, file]) if ret == 0: for line in ldd_out: if 'not a dynamic executable' in line: break if 'cannot read header' in line: break if 'statically linked' in line: break match = pattern1.search(line) if match: reqs.append(match.groups()[0]) else: match = pattern2.search(line) if match: reqs.append(match.groups()[0]) return reqs def handle_binfmt(profile, path): """Modifies the profile to add the requirements""" reqs_processed = dict() reqs = get_reqs(path) while reqs: library = reqs.pop() library = get_full_path(library) # resolve symlinks if not reqs_processed.get(library, False): if get_reqs(library): reqs += get_reqs(library) reqs_processed[library] = True combined_mode = match_prof_incs_to_path(profile, 'allow', library) if combined_mode: continue library = glob_common(library) if not library: continue profile['allow']['path'][library]['mode'] = profile['allow']['path'][library].get('mode', set()) | str_to_mode('mr') profile['allow']['path'][library]['audit'] |= profile['allow']['path'][library].get('audit', set()) def get_interpreter_and_abstraction(exec_target): '''Check if exec_target is a script. If a hashbang is found, check if we have an abstraction for it. Returns (interpreter_path, abstraction) - interpreter_path is none if exec_target is not a script or doesn't have a hashbang line - abstraction is None if no matching abstraction exists''' if not os.path.exists(exec_target): aaui.UI_Important(_('Execute target %s does not exist!') % exec_target) return None, None if not os.path.isfile(exec_target): aaui.UI_Important(_('Execute target %s is not a file!') % exec_target) return None, None hashbang = head(exec_target) if not hashbang.startswith('#!'): return None, None # get the interpreter (without parameters) interpreter = hashbang[2:].strip().split()[0] interpreter_path = get_full_path(interpreter) interpreter = re.sub('^(/usr)?/bin/', '', interpreter_path) if interpreter in ['bash', 'dash', 'sh']: abstraction = 'abstractions/bash' elif interpreter == 'perl': abstraction = 'abstractions/perl' elif re.search('^python([23]|[23]\.[0-9]+)?$', interpreter): abstraction = 'abstractions/python' elif re.search('^ruby([0-9]+(\.[0-9]+)*)?$', interpreter): abstraction = 'abstractions/ruby' else: abstraction = None return interpreter_path, abstraction def get_inactive_profile(local_profile): if extras.get(local_profile, False): return {local_profile: extras[local_profile]} return dict() def profile_storage(profilename, hat, calledby): # keys used in aa[profile][hat]: # a) rules (as dict): alias, include, lvar # b) rules (as hasher): allow, deny # c) one for each rule class # d) other: external, flags, name, profile, attachment, initial_comment, filename, info, # profile_keyword, header_comment (these two are currently only set by set_profile_flags()) # Note that this function doesn't explicitely init all those keys (yet). # It will be extended over time, with the final goal to get rid of hasher(). profile = hasher() # profile['info'] isn't used anywhere, but can be helpful in debugging. profile['info'] = {'profile': profilename, 'hat': hat, 'calledby': calledby} profile['capability'] = CapabilityRuleset() profile['change_profile'] = ChangeProfileRuleset() profile['network'] = NetworkRuleset() profile['ptrace'] = PtraceRuleset() profile['rlimit'] = RlimitRuleset() profile['signal'] = SignalRuleset() profile['allow']['path'] = hasher() profile['allow']['dbus'] = list() profile['allow']['mount'] = list() profile['allow']['pivot_root'] = list() return profile def create_new_profile(localfile, is_stub=False): local_profile = hasher() local_profile[localfile] = profile_storage('NEW', localfile, 'create_new_profile()') local_profile[localfile]['flags'] = 'complain' local_profile[localfile]['include']['abstractions/base'] = 1 if os.path.exists(localfile) and os.path.isfile(localfile): interpreter_path, abstraction = get_interpreter_and_abstraction(localfile) if interpreter_path: local_profile[localfile]['allow']['path'][localfile]['mode'] = local_profile[localfile]['allow']['path'][localfile].get('mode', str_to_mode('r')) | str_to_mode('r') local_profile[localfile]['allow']['path'][localfile]['audit'] = local_profile[localfile]['allow']['path'][localfile].get('audit', set()) local_profile[localfile]['allow']['path'][interpreter_path]['mode'] = local_profile[localfile]['allow']['path'][interpreter_path].get('mode', str_to_mode('ix')) | str_to_mode('ix') local_profile[localfile]['allow']['path'][interpreter_path]['audit'] = local_profile[localfile]['allow']['path'][interpreter_path].get('audit', set()) if abstraction: local_profile[localfile]['include'][abstraction] = True handle_binfmt(local_profile[localfile], interpreter_path) else: local_profile[localfile]['allow']['path'][localfile]['mode'] = local_profile[localfile]['allow']['path'][localfile].get('mode', str_to_mode('mr')) | str_to_mode('mr') local_profile[localfile]['allow']['path'][localfile]['audit'] = local_profile[localfile]['allow']['path'][localfile].get('audit', set()) handle_binfmt(local_profile[localfile], localfile) # Add required hats to the profile if they match the localfile for hatglob in cfg['required_hats'].keys(): if re.search(hatglob, localfile): for hat in sorted(cfg['required_hats'][hatglob].split()): if not local_profile.get(hat, False): local_profile[hat] = profile_storage('NEW', hat, 'create_new_profile() required_hats') local_profile[hat]['flags'] = 'complain' if not is_stub: created.append(localfile) changed[localfile] = True debug_logger.debug("Profile for %s:\n\t%s" % (localfile, local_profile.__str__())) return {localfile: local_profile} def delete_profile(local_prof): """Deletes the specified file from the disk and remove it from our list""" profile_file = get_profile_filename(local_prof) if os.path.isfile(profile_file): os.remove(profile_file) if aa.get(local_prof, False): aa.pop(local_prof) #prof_unload(local_prof) def confirm_and_abort(): ans = aaui.UI_YesNo(_('Are you sure you want to abandon this set of profile changes and exit?'), 'n') if ans == 'y': aaui.UI_Info(_('Abandoning all changes.')) shutdown_yast() for prof in created: delete_profile(prof) sys.exit(0) def get_profile(prof_name): profile_data = None distro = cfg['repository']['distro'] repo_url = cfg['repository']['url'] # local_profiles = [] profile_hash = hasher() if repo_is_enabled(): aaui.UI_BusyStart(_('Connecting to repository...')) status_ok, ret = fetch_profiles_by_name(repo_url, distro, prof_name) aaui.UI_BusyStop() if status_ok: profile_hash = ret else: aaui.UI_Important(_('WARNING: Error fetching profiles from the repository')) inactive_profile = get_inactive_profile(prof_name) if inactive_profile: uname = 'Inactive local profile for %s' % prof_name inactive_profile[prof_name][prof_name]['flags'] = 'complain' inactive_profile[prof_name][prof_name].pop('filename') profile_hash[uname]['username'] = uname profile_hash[uname]['profile_type'] = 'INACTIVE_LOCAL' profile_hash[uname]['profile'] = serialize_profile(inactive_profile[prof_name], prof_name) profile_hash[uname]['profile_data'] = inactive_profile # If no profiles in repo and no inactive profiles if not profile_hash.keys(): return None options = [] tmp_list = [] preferred_present = False preferred_user = cfg['repository'].get('preferred_user', 'NOVELL') for p in profile_hash.keys(): if profile_hash[p]['username'] == preferred_user: preferred_present = True else: tmp_list.append(profile_hash[p]['username']) if preferred_present: options.append(preferred_user) options += tmp_list q = aaui.PromptQuestion() q.headers = ['Profile', prof_name] q.functions = ['CMD_VIEW_PROFILE', 'CMD_USE_PROFILE', 'CMD_CREATE_PROFILE', 'CMD_ABORT', 'CMD_FINISHED'] q.default = "CMD_VIEW_PROFILE" q.options = options q.selected = 0 ans = '' while 'CMD_USE_PROFILE' not in ans and 'CMD_CREATE_PROFILE' not in ans: if ans == 'CMD_FINISHED': save_profiles() return ans, arg = q.promptUser() p = profile_hash[options[arg]] q.selected = options.index(options[arg]) if ans == 'CMD_VIEW_PROFILE': if aaui.UI_mode == 'yast': SendDataToYast({'type': 'dialogue-view-profile', 'user': options[arg], 'profile': p['profile'], 'profile_type': p['profile_type'] }) ypath, yarg = GetDataFromYast() #else: # pager = get_pager() # proc = subprocess.Popen(pager, stdin=subprocess.PIPE) # proc.communicate('Profile submitted by %s:\n\n%s\n\n' % # (options[arg], p['profile'])) # proc.kill() elif ans == 'CMD_USE_PROFILE': if p['profile_type'] == 'INACTIVE_LOCAL': profile_data = p['profile_data'] created.append(prof_name) else: profile_data = parse_repo_profile(prof_name, repo_url, p) return profile_data def activate_repo_profiles(url, profiles, complain): read_profiles() try: for p in profiles: pname = p[0] profile_data = parse_repo_profile(pname, url, p[1]) attach_profile_data(aa, profile_data) write_profile(pname) if complain: fname = get_profile_filename(pname) set_profile_flags(profile_dir + fname, 'complain') aaui.UI_Info(_('Setting %s to complain mode.') % pname) except Exception as e: sys.stderr.write(_("Error activating profiles: %s") % e) def autodep(bin_name, pname=''): bin_full = None global repo_cfg if not repo_cfg and not cfg['repository'].get('url', False): repo_conf = apparmor.config.Config('shell', CONFDIR) repo_cfg = repo_conf.read_config('repository.conf') if not repo_cfg.get('repository', False) or repo_cfg['repository']['enabled'] == 'later': UI_ask_to_enable_repo() if bin_name: bin_full = find_executable(bin_name) #if not bin_full: # bin_full = bin_name #if not bin_full.startswith('/'): #return None # Return if exectuable path not found if not bin_full: return None else: bin_full = pname # for named profiles pname = bin_full read_inactive_profiles() profile_data = get_profile(pname) # Create a new profile if no existing profile if not profile_data: profile_data = create_new_profile(pname) file = get_profile_filename(pname) attach_profile_data(aa, profile_data) attach_profile_data(original_aa, profile_data) if os.path.isfile(profile_dir + '/tunables/global'): if not filelist.get(file, False): filelist[file] = hasher() filelist[file]['include']['tunables/global'] = True filelist[file]['profiles'][pname] = hasher() filelist[file]['profiles'][pname][pname] = True write_profile_ui_feedback(pname) def get_profile_flags(filename, program): # To-Do # XXX If more than one profile in a file then second one is being ignored XXX # Do we return flags for both or flags = '' with open_file_read(filename) as f_in: for line in f_in: if RE_PROFILE_START.search(line): matches = parse_profile_start_line(line, filename) profile = matches['profile'] flags = matches['flags'] if profile == program or program is None: return flags raise AppArmorException(_('%s contains no profile') % filename) def change_profile_flags(filename, program, flag, set_flag): old_flags = get_profile_flags(filename, program) newflags = [] if old_flags: # Flags maybe white-space and/or , separated old_flags = old_flags.split(',') if not isinstance(old_flags, str): for i in old_flags: newflags += i.split() else: newflags = old_flags.split() #newflags = [lambda x:x.strip(), oldflags] if set_flag: if flag not in newflags: newflags.append(flag) else: if flag in newflags: newflags.remove(flag) newflags = ','.join(newflags) set_profile_flags(filename, program, newflags) def set_profile_flags(prof_filename, program, newflags): """Reads the old profile file and updates the flags accordingly""" # TODO: count the number of matching lines (separated by profile and hat?) and return it # so that code calling this function can make sure to only report success if there was a match # TODO: existing (unrelated) flags of hats and child profiles are overwritten - ideally, we should # keep them and only add or remove a given flag # TODO: change child profile flags even if program is specified found = False if newflags and newflags.strip() == '': raise AppArmorBug('New flags for %s contain only whitespace' % prof_filename) with open_file_read(prof_filename) as f_in: temp_file = tempfile.NamedTemporaryFile('w', prefix=prof_filename, suffix='~', delete=False, dir=profile_dir) shutil.copymode(prof_filename, temp_file.name) with open_file_write(temp_file.name) as f_out: for line in f_in: if RE_PROFILE_START.search(line): matches = parse_profile_start_line(line, prof_filename) space = matches['leadingspace'] or '' profile = matches['profile'] if profile == program or program is None: found = True header_data = { 'attachment': matches['attachment'] or '', 'flags': newflags, 'profile_keyword': matches['profile_keyword'], 'header_comment': matches['comment'] or '', } line = write_header(header_data, len(space)/2, profile, False, True) line = '%s\n' % line[0] elif RE_PROFILE_HAT_DEF.search(line): matches = RE_PROFILE_HAT_DEF.search(line) space = matches.group('leadingspace') or '' hat_keyword = matches.group('hat_keyword') hat = matches.group('hat') comment = matches.group('comment') or '' if comment: comment = ' %s' % comment if newflags: line = '%s%s%s flags=(%s) {%s\n' % (space, hat_keyword, hat, newflags, comment) else: line = '%s%s%s {%s\n' % (space, hat_keyword, hat, comment) f_out.write(line) os.rename(temp_file.name, prof_filename) if not found: if program is None: raise AppArmorBug("%(file)s doesn't contain a valid profile (syntax error?)" % {'file': prof_filename}) else: raise AppArmorBug("%(file)s doesn't contain a valid profile for %(profile)s (syntax error?)" % {'file': prof_filename, 'profile': program}) def profile_exists(program): """Returns True if profile exists, False otherwise""" # Check cache of profiles if existing_profiles.get(program, False): return True # Check the disk for profile prof_path = get_profile_filename(program) #print(prof_path) if os.path.isfile(prof_path): # Add to cache of profile existing_profiles[program] = prof_path return True return False def sync_profile(): user, passw = get_repo_user_pass() if not user or not passw: return None repo_profiles = [] changed_profiles = [] new_profiles = [] serialize_opts = hasher() status_ok, ret = fetch_profiles_by_user(cfg['repository']['url'], cfg['repository']['distro'], user) if not status_ok: if not ret: ret = 'UNKNOWN ERROR' aaui.UI_Important(_('WARNING: Error synchronizing profiles with the repository:\n%s\n') % ret) else: users_repo_profiles = ret serialize_opts['NO_FLAGS'] = True for prof in sorted(aa.keys()): if is_repo_profile([aa[prof][prof]]): repo_profiles.append(prof) if prof in created: p_local = serialize_profile(aa[prof], prof, serialize_opts) if not users_repo_profiles.get(prof, False): new_profiles.append(prof) new_profiles.append(p_local) new_profiles.append('') else: p_repo = users_repo_profiles[prof]['profile'] if p_local != p_repo: changed_profiles.append(prof) changed_profiles.append(p_local) changed_profiles.append(p_repo) if repo_profiles: for prof in repo_profiles: p_local = serialize_profile(aa[prof], prof, serialize_opts) if not users_repo_profiles.get(prof, False): new_profiles.append(prof) new_profiles.append(p_local) new_profiles.append('') else: p_repo = '' if aa[prof][prof]['repo']['user'] == user: p_repo = users_repo_profiles[prof]['profile'] else: status_ok, ret = fetch_profile_by_id(cfg['repository']['url'], aa[prof][prof]['repo']['id']) if status_ok: p_repo = ret['profile'] else: if not ret: ret = 'UNKNOWN ERROR' aaui.UI_Important(_('WARNING: Error synchronizing profiles with the repository\n%s') % ret) continue if p_repo != p_local: changed_profiles.append(prof) changed_profiles.append(p_local) changed_profiles.append(p_repo) if changed_profiles: submit_changed_profiles(changed_profiles) if new_profiles: submit_created_profiles(new_profiles) def fetch_profile_by_id(url, id): #To-Do return None, None def fetch_profiles_by_name(url, distro, user): #to-Do return None, None def fetch_profiles_by_user(url, distro, user): #to-Do return None, None def submit_created_profiles(new_profiles): #url = cfg['repository']['url'] if new_profiles: if aaui.UI_mode == 'yast': title = 'New Profiles' message = 'Please select the newly created profiles that you would like to store in the repository' yast_select_and_upload_profiles(title, message, new_profiles) else: title = 'Submit newly created profiles to the repository' message = 'Would you like to upload newly created profiles?' console_select_and_upload_profiles(title, message, new_profiles) def submit_changed_profiles(changed_profiles): #url = cfg['repository']['url'] if changed_profiles: if aaui.UI_mode == 'yast': title = 'Changed Profiles' message = 'Please select which of the changed profiles would you like to upload to the repository' yast_select_and_upload_profiles(title, message, changed_profiles) else: title = 'Submit changed profiles to the repository' message = 'The following profiles from the repository were changed.\nWould you like to upload your changes?' console_select_and_upload_profiles(title, message, changed_profiles) def yast_select_and_upload_profiles(title, message, profiles_up): url = cfg['repository']['url'] profile_changes = hasher() profs = profiles_up[:] for p in profs: profile_changes[p[0]] = get_profile_diff(p[2], p[1]) SendDataToYast({'type': 'dialog-select-profiles', 'title': title, 'explanation': message, 'default_select': 'false', 'disable_ask_upload': 'true', 'profiles': profile_changes }) ypath, yarg = GetDataFromYast() selected_profiles = [] changelog = None changelogs = None single_changelog = False if yarg['STATUS'] == 'cancel': return else: selected_profiles = yarg['PROFILES'] changelogs = yarg['CHANGELOG'] if changelogs.get('SINGLE_CHANGELOG', False): changelog = changelogs['SINGLE_CHANGELOG'] single_changelog = True user, passw = get_repo_user_pass() for p in selected_profiles: profile_string = serialize_profile(aa[p], p) if not single_changelog: changelog = changelogs[p] status_ok, ret = upload_profile(url, user, passw, cfg['repository']['distro'], p, profile_string, changelog) if status_ok: newprofile = ret newid = newprofile['id'] set_repo_info(aa[p][p], url, user, newid) write_profile_ui_feedback(p) else: if not ret: ret = 'UNKNOWN ERROR' aaui.UI_Important(_('WARNING: An error occurred while uploading the profile %(profile)s\n%(ret)s') % { 'profile': p, 'ret': ret }) aaui.UI_Info(_('Uploaded changes to repository.')) if yarg.get('NEVER_ASK_AGAIN'): unselected_profiles = [] for p in profs: if p[0] not in selected_profiles: unselected_profiles.append(p[0]) set_profiles_local_only(unselected_profiles) def upload_profile(url, user, passw, distro, p, profile_string, changelog): # To-Do return None, None def console_select_and_upload_profiles(title, message, profiles_up): url = cfg['repository']['url'] profs = profiles_up[:] q = aaui.PromptQuestion() q.title = title q.headers = ['Repository', url] q.explanation = message q.functions = ['CMD_UPLOAD_CHANGES', 'CMD_VIEW_CHANGES', 'CMD_ASK_LATER', 'CMD_ASK_NEVER', 'CMD_ABORT'] q.default = 'CMD_VIEW_CHANGES' q.options = [i[0] for i in profs] q.selected = 0 ans = '' while 'CMD_UPLOAD_CHANGES' not in ans and 'CMD_ASK_NEVER' not in ans and 'CMD_ASK_LATER' not in ans: ans, arg = q.promptUser() if ans == 'CMD_VIEW_CHANGES': display_changes(profs[arg][2], profs[arg][1]) if ans == 'CMD_NEVER_ASK': set_profiles_local_only([i[0] for i in profs]) elif ans == 'CMD_UPLOAD_CHANGES': changelog = aaui.UI_GetString(_('Changelog Entry: '), '') user, passw = get_repo_user_pass() if user and passw: for p_data in profs: prof = p_data[0] prof_string = p_data[1] status_ok, ret = upload_profile(url, user, passw, cfg['repository']['distro'], prof, prof_string, changelog) if status_ok: newprof = ret newid = newprof['id'] set_repo_info(aa[prof][prof], url, user, newid) write_profile_ui_feedback(prof) aaui.UI_Info('Uploaded %s to repository' % prof) else: if not ret: ret = 'UNKNOWN ERROR' aaui.UI_Important(_('WARNING: An error occurred while uploading the profile %(profile)s\n%(ret)s') % { 'profile': prof, 'ret': ret }) else: aaui.UI_Important(_('Repository Error\nRegistration or Signin was unsuccessful. User login\ninformation is required to upload profiles to the repository.\nThese changes could not be sent.')) def set_profiles_local_only(profs): for p in profs: aa[profs][profs]['repo']['neversubmit'] = True write_profile_ui_feedback(profs) def build_x_functions(default, options, exec_toggle): ret_list = [] fallback_toggle = False if exec_toggle: if 'i' in options: ret_list.append('CMD_ix') if 'p' in options: ret_list.append('CMD_pix') fallback_toggle = True if 'c' in options: ret_list.append('CMD_cix') fallback_toggle = True if 'n' in options: ret_list.append('CMD_nix') fallback_toggle = True if fallback_toggle: ret_list.append('CMD_EXEC_IX_OFF') if 'u' in options: ret_list.append('CMD_ux') else: if 'i' in options: ret_list.append('CMD_ix') if 'c' in options: ret_list.append('CMD_cx') fallback_toggle = True if 'p' in options: ret_list.append('CMD_px') fallback_toggle = True if 'n' in options: ret_list.append('CMD_nx') fallback_toggle = True if 'u' in options: ret_list.append('CMD_ux') if fallback_toggle: ret_list.append('CMD_EXEC_IX_ON') ret_list += ['CMD_DENY', 'CMD_ABORT', 'CMD_FINISHED'] return ret_list def handle_children(profile, hat, root): entries = root[:] pid = None p = None h = None prog = None aamode = None mode = None detail = None to_name = None uhat = None capability = None family = None sock_type = None protocol = None global seen_events regex_nullcomplain = re.compile('^null(-complain)*-profile$') for entry in entries: if type(entry[0]) != str: handle_children(profile, hat, entry) else: typ = entry.pop(0) if typ == 'fork': # If type is fork then we (should) have pid, profile and hat pid, p, h = entry[:3] if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if hat: profile_changes[pid] = profile + '//' + hat else: profile_changes[pid] = profile elif typ == 'unknown_hat': # If hat is not known then we (should) have pid, profile, hat, mode and unknown hat in entry pid, p, h, aamode, uhat = entry[:5] if not regex_nullcomplain.search(p): profile = p if aa[profile].get(uhat, False): hat = uhat continue new_p = update_repo_profile(aa[profile][profile]) if new_p and UI_SelectUpdatedRepoProfile(profile, new_p) and aa[profile].get(uhat, False): hat = uhat continue default_hat = None for hatglob in cfg.options('defaulthat'): if re.search(hatglob, profile): default_hat = cfg['defaulthat'][hatglob] context = profile context = context + ' -> ^%s' % uhat ans = transitions.get(context, 'XXXINVALIDXXX') while ans not in ['CMD_ADDHAT', 'CMD_USEDEFAULT', 'CMD_DENY']: q = aaui.PromptQuestion() q.headers += [_('Profile'), profile] if default_hat: q.headers += [_('Default Hat'), default_hat] q.headers += [_('Requested Hat'), uhat] q.functions.append('CMD_ADDHAT') if default_hat: q.functions.append('CMD_USEDEFAULT') q.functions += ['CMD_DENY', 'CMD_ABORT', 'CMD_FINISHED'] q.default = 'CMD_DENY' if aamode == 'PERMITTING': q.default = 'CMD_ADDHAT' seen_events += 1 ans = q.promptUser() if ans == 'CMD_FINISHED': save_profiles() return transitions[context] = ans if ans == 'CMD_ADDHAT': hat = uhat aa[profile][hat]['flags'] = aa[profile][profile]['flags'] elif ans == 'CMD_USEDEFAULT': hat = default_hat elif ans == 'CMD_DENY': # As unknown hat is denied no entry for it should be made return None elif typ == 'capability': # If capability then we (should) have pid, profile, hat, program, mode, capability pid, p, h, prog, aamode, capability = entry[:6] if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if not profile or not hat: continue prelog[aamode][profile][hat]['capability'][capability] = True elif typ == 'ptrace': # If ptrace then we (should) have pid, profile, hat, program, mode, access and peer pid, p, h, prog, aamode, access, peer = entry if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if not profile or not hat: continue prelog[aamode][profile][hat]['ptrace'][peer][access] = True elif typ == 'signal': # If signal then we (should) have pid, profile, hat, program, mode, access, signal and peer pid, p, h, prog, aamode, access, signal, peer = entry if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if not profile or not hat: continue prelog[aamode][profile][hat]['signal'][peer][access][signal] = True elif typ == 'path' or typ == 'exec': # If path or exec then we (should) have pid, profile, hat, program, mode, details and to_name pid, p, h, prog, aamode, mode, detail, to_name = entry[:8] if not mode: mode = set() if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if not profile or not hat or not detail: continue domainchange = 'nochange' if typ == 'exec': domainchange = 'change' # Escape special characters detail = detail.replace('[', '\[') detail = detail.replace(']', '\]') detail = detail.replace('+', '\+') detail = detail.replace('*', '\*') detail = detail.replace('{', '\{') detail = detail.replace('}', '\}') detail = detail.replace('!', '\!') # Give Execute dialog if x access requested for something that's not a directory # For directories force an 'ix' Path dialog do_execute = False exec_target = detail if mode & str_to_mode('x'): if os.path.isdir(exec_target): raise AppArmorBug('exec permissions requested for directory %s. This should not happen - please open a bugreport!' % exec_target) elif typ != 'exec': raise AppArmorBug('exec permissions requested for %(exec_target)s, but mode is %(mode)s instead of exec. This should not happen - please open a bugreport!' % {'exec_target': exec_target, 'mode':mode}) else: do_execute = True if mode: path = detail if prelog[aamode][profile][hat]['path'].get(path, False): mode |= prelog[aamode][profile][hat]['path'][path] prelog[aamode][profile][hat]['path'][path] = mode if do_execute: if profile_known_exec(aa[profile][hat], 'exec', exec_target): continue p = update_repo_profile(aa[profile][profile]) if to_name: if UI_SelectUpdatedRepoProfile(profile, p) and profile_known_exec(aa[profile][hat], 'exec', to_name): continue else: if UI_SelectUpdatedRepoProfile(profile, p) and profile_known_exec(aa[profile][hat], 'exec', exec_target): continue context_new = profile if profile != hat: context_new = context_new + '^%s' % hat context_new = context_new + ' -> %s' % exec_target # ans_new = transitions.get(context_new, '') # XXX ans meant here? combinedmode = set() combinedaudit = set() ## Check return Value Consistency # Check if path matches any existing regexps in profile cm, am, m = rematchfrag(aa[profile][hat], 'allow', exec_target) if cm: combinedmode |= cm if am: combinedaudit |= am if combinedmode & str_to_mode('x'): nt_name = None for entr in m: if aa[profile][hat]['allow']['path'].get(entr, False): nt_name = entr break if to_name and to_name != nt_name: pass elif nt_name: to_name = nt_name ## Check return value consistency # Check if the includes from profile match cm, am, m = match_prof_incs_to_path(aa[profile][hat], 'allow', exec_target) if cm: combinedmode |= cm if am: combinedaudit |= am if combinedmode & str_to_mode('x'): nt_name = None for entr in m: if aa[profile][hat]['allow']['path'][entry]['to']: nt_name = aa[profile][hat]['allow']['path'][entry]['to'] break if to_name and to_name != nt_name: pass elif nt_name: to_name = nt_name # nx is not used in profiles but in log files. # Log parsing methods will convert it to its profile form # nx is internally cx/px/cix/pix + to_name exec_mode = False if contains(combinedmode, 'pix'): if to_name: ans = 'CMD_nix' else: ans = 'CMD_pix' exec_mode = str_to_mode('pixr') elif contains(combinedmode, 'cix'): if to_name: ans = 'CMD_nix' else: ans = 'CMD_cix' exec_mode = str_to_mode('cixr') elif contains(combinedmode, 'Pix'): if to_name: ans = 'CMD_nix_safe' else: ans = 'CMD_pix_safe' exec_mode = str_to_mode('Pixr') elif contains(combinedmode, 'Cix'): if to_name: ans = 'CMD_nix_safe' else: ans = 'CMD_cix_safe' exec_mode = str_to_mode('Cixr') elif contains(combinedmode, 'ix'): ans = 'CMD_ix' exec_mode = str_to_mode('ixr') elif contains(combinedmode, 'px'): if to_name: ans = 'CMD_nx' else: ans = 'CMD_px' exec_mode = str_to_mode('px') elif contains(combinedmode, 'cx'): if to_name: ans = 'CMD_nx' else: ans = 'CMD_cx' exec_mode = str_to_mode('cx') elif contains(combinedmode, 'ux'): ans = 'CMD_ux' exec_mode = str_to_mode('ux') elif contains(combinedmode, 'Px'): if to_name: ans = 'CMD_nx_safe' else: ans = 'CMD_px_safe' exec_mode = str_to_mode('Px') elif contains(combinedmode, 'Cx'): if to_name: ans = 'CMD_nx_safe' else: ans = 'CMD_cx_safe' exec_mode = str_to_mode('Cx') elif contains(combinedmode, 'Ux'): ans = 'CMD_ux_safe' exec_mode = str_to_mode('Ux') else: options = cfg['qualifiers'].get(exec_target, 'ipcnu') if to_name: fatal_error(_('%s has transition name but not transition mode') % entry) ### If profiled program executes itself only 'ix' option ##if exec_target == profile: ##options = 'i' # Don't allow hats to cx? options.replace('c', '') # Add deny to options options += 'd' # Define the default option default = None if 'p' in options and os.path.exists(get_profile_filename(exec_target)): default = 'CMD_px' sys.stdout.write(_('Target profile exists: %s\n') % get_profile_filename(exec_target)) elif 'i' in options: default = 'CMD_ix' elif 'c' in options: default = 'CMD_cx' elif 'n' in options: default = 'CMD_nx' else: default = 'DENY' # parent_uses_ld_xxx = check_for_LD_XXX(profile) sev_db.unload_variables() sev_db.load_variables(get_profile_filename(profile)) severity = sev_db.rank(exec_target, 'x') # Prompt portion starts q = aaui.PromptQuestion() q.headers += [_('Profile'), combine_name(profile, hat)] if prog and prog != 'HINT': q.headers += [_('Program'), prog] # to_name should not exist here since, transitioning is already handeled q.headers += [_('Execute'), exec_target] q.headers += [_('Severity'), severity] # prompt = '\n%s\n' % context_new # XXX exec_toggle = False q.functions += build_x_functions(default, options, exec_toggle) # options = '|'.join(options) seen_events += 1 regex_options = re.compile('^CMD_(ix|px|cx|nx|pix|cix|nix|px_safe|cx_safe|nx_safe|pix_safe|cix_safe|nix_safe|ux|ux_safe|EXEC_TOGGLE|DENY)$') ans = '' while not regex_options.search(ans): ans = q.promptUser()[0].strip() if ans.startswith('CMD_EXEC_IX_'): exec_toggle = not exec_toggle q.functions = [] q.functions += build_x_functions(default, options, exec_toggle) ans = '' continue if ans == 'CMD_FINISHED': save_profiles() return if ans == 'CMD_nx' or ans == 'CMD_nix': arg = exec_target ynans = 'n' if profile == hat: ynans = aaui.UI_YesNo(_('Are you specifying a transition to a local profile?'), 'n') if ynans == 'y': if ans == 'CMD_nx': ans = 'CMD_cx' else: ans = 'CMD_cix' else: if ans == 'CMD_nx': ans = 'CMD_px' else: ans = 'CMD_pix' to_name = aaui.UI_GetString(_('Enter profile name to transition to: '), arg) regex_optmode = re.compile('CMD_(px|cx|nx|pix|cix|nix)') if ans == 'CMD_ix': exec_mode = str_to_mode('ix') elif regex_optmode.search(ans): match = regex_optmode.search(ans).groups()[0] exec_mode = str_to_mode(match) px_default = 'n' px_msg = _("Should AppArmor sanitise the environment when\nswitching profiles?\n\nSanitising environment is more secure,\nbut some applications depend on the presence\nof LD_PRELOAD or LD_LIBRARY_PATH.") if parent_uses_ld_xxx: px_msg = _("Should AppArmor sanitise the environment when\nswitching profiles?\n\nSanitising environment is more secure,\nbut this application appears to be using LD_PRELOAD\nor LD_LIBRARY_PATH and sanitising the environment\ncould cause functionality problems.") ynans = aaui.UI_YesNo(px_msg, px_default) if ynans == 'y': # Disable the unsafe mode exec_mode = exec_mode - (apparmor.aamode.AA_EXEC_UNSAFE | AA_OTHER(apparmor.aamode.AA_EXEC_UNSAFE)) elif ans == 'CMD_ux': exec_mode = str_to_mode('ux') ynans = aaui.UI_YesNo(_("Launching processes in an unconfined state is a very\ndangerous operation and can cause serious security holes.\n\nAre you absolutely certain you wish to remove all\nAppArmor protection when executing %s ?") % exec_target, 'n') if ynans == 'y': ynans = aaui.UI_YesNo(_("Should AppArmor sanitise the environment when\nrunning this program unconfined?\n\nNot sanitising the environment when unconfining\na program opens up significant security holes\nand should be avoided if at all possible."), 'y') if ynans == 'y': # Disable the unsafe mode exec_mode = exec_mode - (apparmor.aamode.AA_EXEC_UNSAFE | AA_OTHER(apparmor.aamode.AA_EXEC_UNSAFE)) else: ans = 'INVALID' transitions[context_new] = ans regex_options = re.compile('CMD_(ix|px|cx|nx|pix|cix|nix)') if regex_options.search(ans): # For inherit we need r if exec_mode & str_to_mode('i'): exec_mode |= str_to_mode('r') else: if ans == 'CMD_DENY': aa[profile][hat]['deny']['path'][exec_target]['mode'] = aa[profile][hat]['deny']['path'][exec_target].get('mode', str_to_mode('x')) | str_to_mode('x') aa[profile][hat]['deny']['path'][exec_target]['audit'] = aa[profile][hat]['deny']['path'][exec_target].get('audit', set()) changed[profile] = True # Skip remaining events if they ask to deny exec if domainchange == 'change': return None if ans != 'CMD_DENY': prelog['PERMITTING'][profile][hat]['path'][exec_target] = prelog['PERMITTING'][profile][hat]['path'].get(exec_target, exec_mode) | exec_mode log_dict['PERMITTING'][profile] = hasher() aa[profile][hat]['allow']['path'][exec_target]['mode'] = aa[profile][hat]['allow']['path'][exec_target].get('mode', exec_mode) aa[profile][hat]['allow']['path'][exec_target]['audit'] = aa[profile][hat]['allow']['path'][exec_target].get('audit', set()) if to_name: aa[profile][hat]['allow']['path'][exec_target]['to'] = to_name changed[profile] = True if exec_mode & str_to_mode('i'): interpreter_path, abstraction = get_interpreter_and_abstraction(exec_target) if interpreter_path: aa[profile][hat]['allow']['path'][interpreter_path]['mode'] = aa[profile][hat]['allow']['path'][interpreter_path].get('mode', str_to_mode('ix')) | str_to_mode('ix') aa[profile][hat]['allow']['path'][interpreter_path]['audit'] = aa[profile][hat]['allow']['path'][interpreter_path].get('audit', set()) if abstraction: aa[profile][hat]['include'][abstraction] = True # Update tracking info based on kind of change if ans == 'CMD_ix': if hat: profile_changes[pid] = '%s//%s' % (profile, hat) else: profile_changes[pid] = '%s//' % profile elif re.search('^CMD_(px|nx|pix|nix)', ans): if to_name: exec_target = to_name if aamode == 'PERMITTING': if domainchange == 'change': profile = exec_target hat = exec_target profile_changes[pid] = '%s' % profile # Check profile exists for px if not os.path.exists(get_profile_filename(exec_target)): ynans = 'y' if exec_mode & str_to_mode('i'): ynans = aaui.UI_YesNo(_('A profile for %s does not exist.\nDo you want to create one?') % exec_target, 'n') if ynans == 'y': helpers[exec_target] = 'enforce' if to_name: autodep('', exec_target) else: autodep(exec_target, '') reload_base(exec_target) elif ans.startswith('CMD_cx') or ans.startswith('CMD_cix'): if to_name: exec_target = to_name if aamode == 'PERMITTING': if domainchange == 'change': profile_changes[pid] = '%s//%s' % (profile, exec_target) if not aa[profile].get(exec_target, False): ynans = 'y' if exec_mode & str_to_mode('i'): ynans = aaui.UI_YesNo(_('A profile for %s does not exist.\nDo you want to create one?') % exec_target, 'n') if ynans == 'y': hat = exec_target if not aa[profile].get(hat, False): aa[profile][hat] = profile_storage(profile, hat, 'handle_children()') aa[profile][hat]['profile'] = True if profile != hat: aa[profile][hat]['flags'] = aa[profile][profile]['flags'] stub_profile = create_new_profile(hat, True) aa[profile][hat]['flags'] = 'complain' aa[profile][hat]['allow']['path'] = hasher() if stub_profile[hat][hat]['allow'].get('path', False): aa[profile][hat]['allow']['path'] = stub_profile[hat][hat]['allow']['path'] aa[profile][hat]['include'] = hasher() if stub_profile[hat][hat].get('include', False): aa[profile][hat]['include'] = stub_profile[hat][hat]['include'] file_name = aa[profile][profile]['filename'] filelist[file_name]['profiles'][profile][hat] = True elif ans.startswith('CMD_ux'): profile_changes[pid] = 'unconfined' if domainchange == 'change': return None elif typ == 'netdomain': # If netdomain we (should) have pid, profile, hat, program, mode, network family, socket type and protocol pid, p, h, prog, aamode, family, sock_type, protocol = entry[:8] if not regex_nullcomplain.search(p) and not regex_nullcomplain.search(h): profile = p hat = h if not hat or not profile: continue if family and sock_type: prelog[aamode][profile][hat]['netdomain'][family][sock_type] = True return None ##### Repo related functions def UI_SelectUpdatedRepoProfile(profile, p): # To-Do return False def UI_repo_signup(): # To-Do return None, None def UI_ask_to_enable_repo(): # To-Do pass def UI_ask_to_upload_profiles(): # To-Do pass def UI_ask_mode_toggles(audit_toggle, owner_toggle, oldmode): # To-Do return (audit_toggle, owner_toggle) def parse_repo_profile(fqdbin, repo_url, profile): # To-Do pass def set_repo_info(profile_data, repo_url, username, iden): # To-Do pass def is_repo_profile(profile_data): # To-Do pass def get_repo_user_pass(): # To-Do pass def get_preferred_user(repo_url): # To-Do pass def repo_is_enabled(): # To-Do return False def update_repo_profile(profile): # To-Do return None def order_globs(globs, path): """Returns the globs in sorted order, more specific behind""" # To-Do # ATM its lexicographic, should be done to allow better matches later return sorted(globs) def ask_the_questions(): found = 0 global seen_events for aamode in sorted(log_dict.keys()): # Describe the type of changes if aamode == 'PERMITTING': aaui.UI_Info(_('Complain-mode changes:')) elif aamode == 'REJECTING': aaui.UI_Info(_('Enforce-mode changes:')) else: # This is so wrong! fatal_error(_('Invalid mode found: %s') % aamode) for profile in sorted(log_dict[aamode].keys()): # Update the repo profiles p = update_repo_profile(aa[profile][profile]) if p: UI_SelectUpdatedRepoProfile(profile, p) found += 1 # Sorted list of hats with the profile name coming first hats = list(filter(lambda key: key != profile, sorted(log_dict[aamode][profile].keys()))) if log_dict[aamode][profile].get(profile, False): hats = [profile] + hats for hat in hats: for ruletype in ruletypes: for rule_obj in log_dict[aamode][profile][hat][ruletype].rules: # XXX aa-mergeprof also has this code - if you change it, keep aa-mergeprof in sync! if is_known_rule(aa[profile][hat], ruletype, rule_obj): continue default_option = 1 options = [] newincludes = match_includes(aa[profile][hat], ruletype, rule_obj) q = aaui.PromptQuestion() if newincludes: options += list(map(lambda inc: '#include <%s>' % inc, sorted(set(newincludes)))) options.append(rule_obj.get_clean()) q.options = options q.selected = default_option - 1 seen_events += 1 done = False while not done: q.headers = [_('Profile'), combine_name(profile, hat)] q.headers += rule_obj.logprof_header() # Load variables into sev_db? Not needed/used for capabilities and network rules. severity = rule_obj.severity(sev_db) if severity != sev_db.NOT_IMPLEMENTED: q.headers += [_('Severity'), severity] q.functions = available_buttons(rule_obj) # In complain mode: events default to allow # In enforce mode: events default to deny # XXX does this behaviour really make sense, except for "historical reasons"[tm]? q.default = 'CMD_DENY' if rule_obj.log_event == 'PERMITTING': q.default = 'CMD_ALLOW' ans, selected = q.promptUser() if ans == 'CMD_IGNORE_ENTRY': done = True break elif ans == 'CMD_FINISHED': return elif ans.startswith('CMD_AUDIT'): if ans == 'CMD_AUDIT_NEW': rule_obj.audit = True rule_obj.raw_rule = None else: rule_obj.audit = False rule_obj.raw_rule = None options[len(options) - 1] = rule_obj.get_clean() q.options = options elif ans == 'CMD_ALLOW': done = True changed[profile] = True selection = options[selected] inc = re_match_include(selection) if inc: deleted = delete_duplicates(aa[profile][hat], inc) aa[profile][hat]['include'][inc] = True aaui.UI_Info(_('Adding %s to profile.') % selection) if deleted: aaui.UI_Info(_('Deleted %s previous matching profile entries.') % deleted) else: aa[profile][hat][ruletype].add(rule_obj) aaui.UI_Info(_('Adding %s to profile.') % rule_obj.get_clean()) elif ans == 'CMD_DENY': done = True changed[profile] = True rule_obj.deny = True rule_obj.raw_rule = None # reset raw rule after manually modifying rule_obj aa[profile][hat][ruletype].add(rule_obj) aaui.UI_Info(_('Adding %s to profile.') % rule_obj.get_clean()) else: done = False # END of code (mostly) shared with aa-mergeprof # Process all the path entries. for path in sorted(log_dict[aamode][profile][hat]['allow']['path'].keys()): mode = log_dict[aamode][profile][hat]['allow']['path'][path] # Lookup modes from profile allow_mode = set() allow_audit = set() deny_mode = set() deny_audit = set() fmode, famode, fm = rematchfrag(aa[profile][hat], 'allow', path) if fmode: allow_mode |= fmode if famode: allow_audit |= famode cm, cam, m = rematchfrag(aa[profile][hat], 'deny', path) if cm: deny_mode |= cm if cam: deny_audit |= cam imode, iamode, im = match_prof_incs_to_path(aa[profile][hat], 'allow', path) if imode: allow_mode |= imode if iamode: allow_audit |= iamode cm, cam, m = match_prof_incs_to_path(aa[profile][hat], 'deny', path) if cm: deny_mode |= cm if cam: deny_audit |= cam if deny_mode & apparmor.aamode.AA_MAY_EXEC: deny_mode |= apparmor.aamode.ALL_AA_EXEC_TYPE # Mask off the denied modes mode = mode - deny_mode # If we get an exec request from some kindof event that generates 'PERMITTING X' # check if its already in allow_mode # if not add ix permission if mode & apparmor.aamode.AA_MAY_EXEC: # Remove all type access permission mode = mode - apparmor.aamode.ALL_AA_EXEC_TYPE if not allow_mode & apparmor.aamode.AA_MAY_EXEC: mode |= str_to_mode('ix') if not mode: continue matches = [] if fmode: matches += fm if imode: matches += im if not mode_contains(allow_mode, mode): default_option = 1 options = [] newincludes = [] include_valid = False for incname in include.keys(): include_valid = False # If already present skip if aa[profile][hat]['include'].get(incname, False): continue if incname.startswith(profile_dir): incname = incname.replace(profile_dir + '/', '', 1) include_valid = valid_include('', incname) if not include_valid: continue cm, am, m = match_include_to_path(incname, 'allow', path) if cm and mode_contains(cm, mode): dm = match_include_to_path(incname, 'deny', path)[0] # If the mode is denied if not mode & dm: if not list(filter(lambda s: '/**' == s, m)): newincludes.append(incname) # Add new includes to the options if newincludes: options += list(map(lambda s: '#include <%s>' % s, sorted(set(newincludes)))) # We should have literal the path in options list too options.append(path) # Add any the globs matching path from logprof globs = glob_common(path) if globs: matches += globs # Add any user entered matching globs for user_glob in user_globs: if matchliteral(user_glob, path): matches.append(user_glob) matches = list(set(matches)) if path in matches: matches.remove(path) options += order_globs(matches, path) default_option = len(options) sev_db.unload_variables() sev_db.load_variables(get_profile_filename(profile)) severity = sev_db.rank(path, mode_to_str(mode)) sev_db.unload_variables() audit_toggle = 0 owner_toggle = 0 if cfg['settings']['default_owner_prompt']: owner_toggle = cfg['settings']['default_owner_prompt'] done = False while not done: q = aaui.PromptQuestion() q.headers = [_('Profile'), combine_name(profile, hat), _('Path'), path] if allow_mode: mode |= allow_mode tail = '' s = '' prompt_mode = None if owner_toggle == 0: prompt_mode = flatten_mode(mode) tail = ' ' + _('(owner permissions off)') elif owner_toggle == 1: prompt_mode = mode elif owner_toggle == 2: prompt_mode = allow_mode | owner_flatten_mode(mode - allow_mode) tail = ' ' + _('(force new perms to owner)') else: prompt_mode = owner_flatten_mode(mode) tail = ' ' + _('(force all rule perms to owner)') if audit_toggle == 1: s = mode_to_str_user(allow_mode) if allow_mode: s += ', ' s += 'audit ' + mode_to_str_user(prompt_mode - allow_mode) + tail elif audit_toggle == 2: s = 'audit ' + mode_to_str_user(prompt_mode) + tail else: s = mode_to_str_user(prompt_mode) + tail q.headers += [_('Old Mode'), mode_to_str_user(allow_mode), _('New Mode'), s] else: s = '' tail = '' prompt_mode = None if audit_toggle: s = 'audit' if owner_toggle == 0: prompt_mode = flatten_mode(mode) tail = ' ' + _('(owner permissions off)') elif owner_toggle == 1: prompt_mode = mode else: prompt_mode = owner_flatten_mode(mode) tail = ' ' + _('(force perms to owner)') s = mode_to_str_user(prompt_mode) q.headers += [_('Mode'), s] q.headers += [_('Severity'), severity] q.options = options q.selected = default_option - 1 q.functions = ['CMD_ALLOW', 'CMD_DENY', 'CMD_IGNORE_ENTRY', 'CMD_GLOB', 'CMD_GLOBEXT', 'CMD_NEW', 'CMD_ABORT', 'CMD_FINISHED', 'CMD_OTHER'] q.default = 'CMD_DENY' if aamode == 'PERMITTING': q.default = 'CMD_ALLOW' seen_events += 1 ans, selected = q.promptUser() if ans == 'CMD_FINISHED': save_profiles() return if ans == 'CMD_IGNORE_ENTRY': done = True break if ans == 'CMD_OTHER': audit_toggle, owner_toggle = UI_ask_mode_toggles(audit_toggle, owner_toggle, allow_mode) elif ans == 'CMD_USER_TOGGLE': owner_toggle += 1 if not allow_mode and owner_toggle == 2: owner_toggle += 1 if owner_toggle > 3: owner_toggle = 0 elif ans == 'CMD_ALLOW': path = options[selected] done = True match = re_match_include(path) # .search('^#include\s+<(.+)>$', path) if match: inc = match # .groups()[0] deleted = 0 deleted = delete_duplicates(aa[profile][hat], inc) aa[profile][hat]['include'][inc] = True changed[profile] = True aaui.UI_Info(_('Adding %s to profile.') % path) if deleted: aaui.UI_Info(_('Deleted %s previous matching profile entries.') % deleted) else: if path in aa[profile][hat]['allow']['path']: if aa[profile][hat]['allow']['path'][path].get('mode', False): mode |= aa[profile][hat]['allow']['path'][path]['mode'] deleted = [] for entry in aa[profile][hat]['allow']['path'].keys(): if path == entry: continue if matchregexp(path, entry): if mode_contains(mode, aa[profile][hat]['allow']['path'][entry]['mode']): deleted.append(entry) for entry in deleted: aa[profile][hat]['allow']['path'].pop(entry) deleted = len(deleted) if owner_toggle == 0: mode = flatten_mode(mode) #elif owner_toggle == 1: # mode = mode elif owner_toggle == 2: mode = allow_mode | owner_flatten_mode(mode - allow_mode) elif owner_toggle == 3: mode = owner_flatten_mode(mode) aa[profile][hat]['allow']['path'][path]['mode'] = aa[profile][hat]['allow']['path'][path].get('mode', set()) | mode tmpmode = set() if audit_toggle == 1: tmpmode = mode - allow_mode elif audit_toggle == 2: tmpmode = mode aa[profile][hat]['allow']['path'][path]['audit'] = aa[profile][hat]['allow']['path'][path].get('audit', set()) | tmpmode changed[profile] = True aaui.UI_Info(_('Adding %(path)s %(mode)s to profile') % { 'path': path, 'mode': mode_to_str_user(mode) }) if deleted: aaui.UI_Info(_('Deleted %s previous matching profile entries.') % deleted) elif ans == 'CMD_DENY': path = options[selected].strip() # Add new entry? aa[profile][hat]['deny']['path'][path]['mode'] = aa[profile][hat]['deny']['path'][path].get('mode', set()) | (mode - allow_mode) aa[profile][hat]['deny']['path'][path]['audit'] = aa[profile][hat]['deny']['path'][path].get('audit', set()) changed[profile] = True done = True elif ans == 'CMD_NEW': arg = options[selected] if not re_match_include(arg): ans = aaui.UI_GetString(_('Enter new path: '), arg) if ans: if not matchliteral(ans, path): ynprompt = _('The specified path does not match this log entry:\n\n Log Entry: %(path)s\n Entered Path: %(ans)s\nDo you really want to use this path?') % { 'path': path, 'ans': ans } key = aaui.UI_YesNo(ynprompt, 'n') if key == 'n': continue user_globs.append(ans) options, default_option = add_to_options(options, ans) elif ans == 'CMD_GLOB': newpath = options[selected].strip() if not re_match_include(newpath): newpath = glob_path(newpath) options, default_option = add_to_options(options, newpath) elif ans == 'CMD_GLOBEXT': newpath = options[selected].strip() if not re_match_include(newpath): newpath = glob_path_withext(newpath) options, default_option = add_to_options(options, newpath) elif re.search('\d', ans): default_option = ans def available_buttons(rule_obj): buttons = [] if not rule_obj.deny: buttons += ['CMD_ALLOW'] buttons += ['CMD_DENY', 'CMD_IGNORE_ENTRY'] if rule_obj.audit: buttons += ['CMD_AUDIT_OFF'] else: buttons += ['CMD_AUDIT_NEW'] buttons += ['CMD_ABORT', 'CMD_FINISHED'] return buttons def add_to_options(options, newpath): if newpath not in options: options.append(newpath) default_option = options.index(newpath) + 1 return (options, default_option) def glob_path(newpath): """Glob the given file path""" if newpath[-1] == '/': if newpath[-4:] == '/**/' or newpath[-3:] == '/*/': # /foo/**/ and /foo/*/ => /**/ newpath = re.sub('/[^/]+/\*{1,2}/$', '/**/', newpath) # re.sub('/[^/]+/\*{1,2}$/', '/\*\*/', newpath) elif re.search('/[^/]+\*\*[^/]*/$', newpath): # /foo**/ and /foo**bar/ => /**/ newpath = re.sub('/[^/]+\*\*[^/]*/$', '/**/', newpath) elif re.search('/\*\*[^/]+/$', newpath): # /**bar/ => /**/ newpath = re.sub('/\*\*[^/]+/$', '/**/', newpath) else: newpath = re.sub('/[^/]+/$', '/*/', newpath) else: if newpath[-3:] == '/**' or newpath[-2:] == '/*': # /foo/** and /foo/* => /** newpath = re.sub('/[^/]+/\*{1,2}$', '/**', newpath) elif re.search('/[^/]*\*\*[^/]+$', newpath): # /**foo and /foor**bar => /** newpath = re.sub('/[^/]*\*\*[^/]+$', '/**', newpath) elif re.search('/[^/]+\*\*$', newpath): # /foo** => /** newpath = re.sub('/[^/]+\*\*$', '/**', newpath) else: newpath = re.sub('/[^/]+$', '/*', newpath) return newpath def glob_path_withext(newpath): """Glob given file path with extension""" # match /**.ext and /*.ext match = re.search('/\*{1,2}(\.[^/]+)$', newpath) if match: # /foo/**.ext and /foo/*.ext => /**.ext newpath = re.sub('/[^/]+/\*{1,2}\.[^/]+$', '/**' + match.groups()[0], newpath) elif re.search('/[^/]+\*\*[^/]*\.[^/]+$', newpath): # /foo**.ext and /foo**bar.ext => /**.ext match = re.search('/[^/]+\*\*[^/]*(\.[^/]+)$', newpath) newpath = re.sub('/[^/]+\*\*[^/]*\.[^/]+$', '/**' + match.groups()[0], newpath) elif re.search('/\*\*[^/]+\.[^/]+$', newpath): # /**foo.ext => /**.ext match = re.search('/\*\*[^/]+(\.[^/]+)$', newpath) newpath = re.sub('/\*\*[^/]+\.[^/]+$', '/**' + match.groups()[0], newpath) else: match = re.search('(\.[^/]+)$', newpath) if match: newpath = re.sub('/[^/]+(\.[^/]+)$', '/*' + match.groups()[0], newpath) return newpath def delete_path_duplicates(profile, incname, allow): deleted = [] for entry in profile[allow]['path'].keys(): if entry == '#include <%s>' % incname: continue # XXX Make this code smart enough to know that bare file rules # makes some path rules unnecessary. For example, "/dev/random r," # would no longer be needed if "file," was present. cm, am, m = match_include_to_path(incname, allow, entry) if cm and mode_contains(cm, profile[allow]['path'][entry]['mode']) and mode_contains(am, profile[allow]['path'][entry]['audit']): deleted.append(entry) for entry in deleted: profile[allow]['path'].pop(entry) return len(deleted) def delete_duplicates(profile, incname): deleted = 0 # Allow rules covered by denied rules shouldn't be deleted # only a subset allow rules may actually be denied if include.get(incname, False): for rule_type in ruletypes: deleted += profile[rule_type].delete_duplicates(include[incname][incname][rule_type]) deleted += delete_path_duplicates(profile, incname, 'allow') deleted += delete_path_duplicates(profile, incname, 'deny') elif filelist.get(incname, False): for rule_type in ruletypes: deleted += profile[rule_type].delete_duplicates(filelist[incname][incname][rule_type]) deleted += delete_path_duplicates(profile, incname, 'allow') deleted += delete_path_duplicates(profile, incname, 'deny') return deleted def match_includes(profile, rule_type, rule_obj): newincludes = [] for incname in include.keys(): # XXX type check should go away once we init all profiles correctly if valid_include(profile, incname) and include[incname][incname].get(rule_type, False) and include[incname][incname][rule_type].is_covered(rule_obj): newincludes.append(incname) return newincludes def valid_include(profile, incname): if profile and profile['include'].get(incname, False): return False if cfg['settings']['custom_includes']: for incm in cfg['settings']['custom_includes'].split(): if incm == incname: return True if incname.startswith('abstractions/') and os.path.isfile(profile_dir + '/' + incname): return True return False def set_logfile(filename): ''' set logfile to a) the specified filename or b) if not given, the first existing logfile from logprof.conf''' global logfile if filename: logfile = filename else: logfile = conf.find_first_file(cfg['settings']['logfiles']) or '/var/log/syslog' if not os.path.exists(logfile): if filename: raise AppArmorException(_('The logfile %s does not exist. Please check the path') % logfile) else: raise AppArmorException('Can\'t find system log "%s".' % (logfile)) elif os.path.isdir(logfile): raise AppArmorException(_('%s is a directory. Please specify a file as logfile') % logfile) def do_logprof_pass(logmark='', passno=0, pid=pid): # set up variables for this pass # t = hasher() # transitions = hasher() # seen = hasher() # XXX global? global log log = [] global existing_profiles global sev_db # aa = hasher() # profile_changes = hasher() # prelog = hasher() # log_dict = hasher() # changed = dict() # skip = hasher() # XXX global? # filelist = hasher() aaui.UI_Info(_('Reading log entries from %s.') % logfile) if not passno: aaui.UI_Info(_('Updating AppArmor profiles in %s.') % profile_dir) read_profiles() if not sev_db: sev_db = apparmor.severity.Severity(CONFDIR + '/severity.db', _('unknown')) #print(pid) #print(existing_profiles) ##if not repo_cf and cfg['repostory']['url']: ## repo_cfg = read_config('repository.conf') ## if not repo_cfg['repository'].get('enabled', False) or repo_cfg['repository]['enabled'] not in ['yes', 'no']: ## UI_ask_to_enable_repo() log_reader = apparmor.logparser.ReadLog(pid, logfile, existing_profiles, profile_dir, log) log = log_reader.read_log(logmark) #read_log(logmark) for root in log: handle_children('', '', root) #for root in range(len(log)): #log[root] = handle_children('', '', log[root]) #print(log) for pid in sorted(profile_changes.keys()): set_process(pid, profile_changes[pid]) collapse_log() ask_the_questions() if aaui.UI_mode == 'yast': # To-Do pass finishing = False # Check for finished save_profiles() ##if not repo_cfg['repository'].get('upload', False) or repo['repository']['upload'] == 'later': ## UI_ask_to_upload_profiles() ##if repo_enabled(): ## if repo_cgf['repository']['upload'] == 'yes': ## sync_profiles() ## created = [] # If user selects 'Finish' then we want to exit logprof if finishing: return 'FINISHED' else: return 'NORMAL' def save_profiles(): # Ensure the changed profiles are actual active profiles for prof_name in changed.keys(): if not is_active_profile(prof_name): print("*** save_profiles(): removing %s" % prof_name) print('*** This should not happen. Please open a bugreport!') changed.pop(prof_name) changed_list = sorted(changed.keys()) if changed_list: if aaui.UI_mode == 'yast': # To-Do # selected_profiles = [] # XXX selected_profiles_ref? profile_changes = dict() for prof in changed_list: oldprofile = serialize_profile(original_aa[prof], prof) newprofile = serialize_profile(aa[prof], prof) profile_changes[prof] = get_profile_diff(oldprofile, newprofile) explanation = _('Select which profile changes you would like to save to the\nlocal profile set.') title = _('Local profile changes') SendDataToYast({'type': 'dialog-select-profiles', 'title': title, 'explanation': explanation, 'dialog_select': 'true', 'get_changelog': 'false', 'profiles': profile_changes }) ypath, yarg = GetDataFromYast() if yarg['STATUS'] == 'cancel': return None else: selected_profiles_ref = yarg['PROFILES'] for profile_name in selected_profiles_ref: write_profile_ui_feedback(profile_name) reload_base(profile_name) else: q = aaui.PromptQuestion() q.title = 'Changed Local Profiles' q.explanation = _('The following local profiles were changed. Would you like to save them?') q.functions = ['CMD_SAVE_CHANGES', 'CMD_SAVE_SELECTED', 'CMD_VIEW_CHANGES', 'CMD_VIEW_CHANGES_CLEAN', 'CMD_ABORT'] q.default = 'CMD_VIEW_CHANGES' q.options = changed q.selected = 0 ans = '' arg = None while ans != 'CMD_SAVE_CHANGES': if not changed: return ans, arg = q.promptUser() if ans == 'CMD_SAVE_SELECTED': profile_name = list(changed.keys())[arg] write_profile_ui_feedback(profile_name) reload_base(profile_name) elif ans == 'CMD_VIEW_CHANGES': which = list(changed.keys())[arg] oldprofile = None if aa[which][which].get('filename', False): oldprofile = aa[which][which]['filename'] else: oldprofile = get_profile_filename(which) try: newprofile = serialize_profile_from_old_profile(aa[which], which, '') except AttributeError: # see https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1528139 newprofile = "###\n###\n### Internal error while generating diff, please use '%s' instead\n###\n###\n" % _('View Changes b/w (C)lean profiles') display_changes_with_comments(oldprofile, newprofile) elif ans == 'CMD_VIEW_CHANGES_CLEAN': which = list(changed.keys())[arg] oldprofile = serialize_profile(original_aa[which], which, '') newprofile = serialize_profile(aa[which], which, '') display_changes(oldprofile, newprofile) for profile_name in sorted(changed.keys()): write_profile_ui_feedback(profile_name) reload_base(profile_name) def get_pager(): pass def generate_diff(oldprofile, newprofile): oldtemp = tempfile.NamedTemporaryFile('w') oldtemp.write(oldprofile) oldtemp.flush() newtemp = tempfile.NamedTemporaryFile('w') newtemp.write(newprofile) newtemp.flush() difftemp = tempfile.NamedTemporaryFile('w', delete=False) subprocess.call('diff -u -p %s %s > %s' % (oldtemp.name, newtemp.name, difftemp.name), shell=True) oldtemp.close() newtemp.close() return difftemp def get_profile_diff(oldprofile, newprofile): difftemp = generate_diff(oldprofile, newprofile) diff = [] with open_file_read(difftemp.name) as f_in: for line in f_in: if not (line.startswith('---') and line .startswith('+++') and line.startswith('@@')): diff.append(line) difftemp.delete = True difftemp.close() return ''.join(diff) def display_changes(oldprofile, newprofile): if aaui.UI_mode == 'yast': aaui.UI_LongMessage(_('Profile Changes'), get_profile_diff(oldprofile, newprofile)) else: difftemp = generate_diff(oldprofile, newprofile) subprocess.call('less %s' % difftemp.name, shell=True) difftemp.delete = True difftemp.close() def display_changes_with_comments(oldprofile, newprofile): """Compare the new profile with the existing profile inclusive of all the comments""" if not os.path.exists(oldprofile): raise AppArmorException(_("Can't find existing profile %s to compare changes.") % oldprofile) if aaui.UI_mode == 'yast': #To-Do pass else: newtemp = tempfile.NamedTemporaryFile('w') newtemp.write(newprofile) newtemp.flush() difftemp = tempfile.NamedTemporaryFile('w') subprocess.call('diff -u -p %s %s > %s' % (oldprofile, newtemp.name, difftemp.name), shell=True) newtemp.close() subprocess.call('less %s' % difftemp.name, shell=True) difftemp.close() def set_process(pid, profile): # If process not running don't do anything if not os.path.exists('/proc/%s/attr/current' % pid): return None process = None try: process = open_file_read('/proc/%s/attr/current' % pid) except IOError: return None current = process.readline().strip() process.close() if not re.search('^null(-complain)*-profile$', current): return None stats = None try: stats = open_file_read('/proc/%s/stat' % pid) except IOError: return None stat = stats.readline().strip() stats.close() match = re.search('^\d+ \((\S+)\) ', stat) if not match: return None try: process = open_file_write('/proc/%s/attr/current' % pid) except IOError: return None process.write('setprofile %s' % profile) process.close() def collapse_log(): for aamode in prelog.keys(): for profile in prelog[aamode].keys(): for hat in prelog[aamode][profile].keys(): log_dict[aamode][profile][hat] = profile_storage(profile, hat, 'collapse_log()') for path in prelog[aamode][profile][hat]['path'].keys(): mode = prelog[aamode][profile][hat]['path'][path] combinedmode = set() # Is path in original profile? if aa[profile][hat]['allow']['path'].get(path, False): combinedmode |= aa[profile][hat]['allow']['path'][path]['mode'] # Match path to regexps in profile combinedmode |= rematchfrag(aa[profile][hat], 'allow', path)[0] # Match path from includes combinedmode |= match_prof_incs_to_path(aa[profile][hat], 'allow', path)[0] if not combinedmode or not mode_contains(combinedmode, mode): if log_dict[aamode][profile][hat]['allow']['path'].get(path, False): mode |= log_dict[aamode][profile][hat]['allow']['path'][path] log_dict[aamode][profile][hat]['allow']['path'][path] = mode for cap in prelog[aamode][profile][hat]['capability'].keys(): cap_event = CapabilityRule(cap, log_event=True) if not is_known_rule(aa[profile][hat], 'capability', cap_event): log_dict[aamode][profile][hat]['capability'].add(cap_event) nd = prelog[aamode][profile][hat]['netdomain'] for family in nd.keys(): for sock_type in nd[family].keys(): net_event = NetworkRule(family, sock_type, log_event=True) if not is_known_rule(aa[profile][hat], 'network', net_event): log_dict[aamode][profile][hat]['network'].add(net_event) ptrace = prelog[aamode][profile][hat]['ptrace'] for peer in ptrace.keys(): for access in ptrace[peer].keys(): ptrace_event = PtraceRule(access, peer, log_event=True) if not is_known_rule(aa[profile][hat], 'ptrace', ptrace_event): log_dict[aamode][profile][hat]['ptrace'].add(ptrace_event) sig = prelog[aamode][profile][hat]['signal'] for peer in sig.keys(): for access in sig[peer].keys(): for signal in sig[peer][access].keys(): signal_event = SignalRule(access, signal, peer, log_event=True) if not is_known_rule(aa[profile][hat], 'signal', signal_event): log_dict[aamode][profile][hat]['signal'].add(signal_event) PROFILE_MODE_RE = re.compile('^(r|w|l|m|k|a|ix|ux|px|pux|cx|pix|cix|cux|Ux|Px|PUx|Cx|Pix|Cix|CUx)+$') PROFILE_MODE_DENY_RE = re.compile('^(r|w|l|m|k|a|x)+$') def validate_profile_mode(mode, allow, nt_name=None): if allow == 'deny': if PROFILE_MODE_DENY_RE.search(mode): return True else: return False else: if PROFILE_MODE_RE.search(mode): return True else: return False def is_skippable_file(path): """Returns True if filename matches something to be skipped (rpm or dpkg backup files, hidden files etc.) The list of skippable files needs to be synced with apparmor initscript and libapparmor _aa_is_blacklisted() path: filename (with or without directory)""" basename = os.path.basename(path) if not basename or basename[0] == '.' or basename == 'README': return True skippable_suffix = ('.dpkg-new', '.dpkg-old', '.dpkg-dist', '.dpkg-bak', '.rpmnew', '.rpmsave', '.orig', '.rej', '~') if basename.endswith(skippable_suffix): return True return False def is_skippable_dir(path): if re.search('^(.*/)?(disable|cache|force-complain|lxc)/?$', path): return True return False def read_profiles(): # we'll read all profiles from disk, so reset the storage first (autodep() might have created/stored # a profile already, which would cause a 'Conflicting profile' error in attach_profile_data()) global aa, original_aa aa = hasher() original_aa = hasher() try: os.listdir(profile_dir) except: fatal_error(_("Can't read AppArmor profiles in %s") % profile_dir) for file in os.listdir(profile_dir): if os.path.isfile(profile_dir + '/' + file): if is_skippable_file(file): continue else: read_profile(profile_dir + '/' + file, True) def read_inactive_profiles(): if not os.path.exists(extra_profile_dir): return None try: os.listdir(profile_dir) except: fatal_error(_("Can't read AppArmor profiles in %s") % extra_profile_dir) for file in os.listdir(profile_dir): if os.path.isfile(extra_profile_dir + '/' + file): if is_skippable_file(file): continue else: read_profile(extra_profile_dir + '/' + file, False) def read_profile(file, active_profile): data = None try: with open_file_read(file) as f_in: data = f_in.readlines() except IOError: debug_logger.debug("read_profile: can't read %s - skipping" % file) return None profile_data = parse_profile_data(data, file, 0) if profile_data and active_profile: attach_profile_data(aa, profile_data) attach_profile_data(original_aa, profile_data) elif profile_data: attach_profile_data(extras, profile_data) def attach_profile_data(profiles, profile_data): # Make deep copy of data to avoid changes to # arising due to mutables for p in profile_data.keys(): if profiles.get(p, False): for hat in profile_data[p].keys(): if profiles[p].get(hat, False): raise AppArmorException(_("Conflicting profiles for %s defined in two files:\n- %s\n- %s") % (combine_name(p, hat), profiles[p][hat]['filename'], profile_data[p][hat]['filename'])) profiles[p] = deepcopy(profile_data[p]) def parse_profile_start(line, file, lineno, profile, hat): matches = parse_profile_start_line(line, file) if profile: # we are inside a profile, so we expect a child profile if not matches['profile_keyword']: raise AppArmorException(_('%(profile)s profile in %(file)s contains syntax errors in line %(line)s: missing "profile" keyword.') % { 'profile': profile, 'file': file, 'line': lineno + 1 }) if profile != hat: # nesting limit reached - a child profile can't contain another child profile raise AppArmorException(_('%(profile)s profile in %(file)s contains syntax errors in line %(line)s: a child profile inside another child profile is not allowed.') % { 'profile': profile, 'file': file, 'line': lineno + 1 }) hat = matches['profile'] in_contained_hat = True pps_set_profile = True pps_set_hat_external = False else: # stand-alone profile profile = matches['profile'] if len(profile.split('//')) >= 2: profile, hat = profile.split('//')[:2] pps_set_hat_external = True else: hat = profile pps_set_hat_external = False in_contained_hat = False pps_set_profile = False attachment = matches['attachment'] flags = matches['flags'] return (profile, hat, attachment, flags, in_contained_hat, pps_set_profile, pps_set_hat_external) def parse_profile_data(data, file, do_include): profile_data = hasher() profile = None hat = None in_contained_hat = None repo_data = None parsed_profiles = [] initial_comment = '' lastline = None if do_include: profile = file hat = file profile_data[profile][hat] = profile_storage(profile, hat, 'parse_profile_data() do_include') profile_data[profile][hat]['filename'] = file for lineno, line in enumerate(data): line = line.strip() if not line: continue # we're dealing with a multiline statement if lastline: line = '%s %s' % (lastline, line) lastline = None # Starting line of a profile if RE_PROFILE_START.search(line): (profile, hat, attachment, flags, in_contained_hat, pps_set_profile, pps_set_hat_external) = parse_profile_start(line, file, lineno, profile, hat) if profile_data[profile].get(hat, False): raise AppArmorException('Profile %(profile)s defined twice in %(file)s, last found in line %(line)s' % { 'file': file, 'line': lineno + 1, 'profile': combine_name(profile, hat) }) profile_data[profile][hat] = profile_storage(profile, hat, 'parse_profile_data() profile_start') if attachment: profile_data[profile][hat]['attachment'] = attachment if pps_set_profile: profile_data[profile][hat]['profile'] = True if pps_set_hat_external: profile_data[profile][hat]['external'] = True # Profile stored existing_profiles[profile] = file # save profile name and filename profile_data[profile][hat]['name'] = profile profile_data[profile][hat]['filename'] = file filelist[file]['profiles'][profile][hat] = True profile_data[profile][hat]['flags'] = flags # Save the initial comment if initial_comment: profile_data[profile][hat]['initial_comment'] = initial_comment initial_comment = '' if repo_data: profile_data[profile][profile]['repo']['url'] = repo_data['url'] profile_data[profile][profile]['repo']['user'] = repo_data['user'] elif RE_PROFILE_END.search(line): # If profile ends and we're not in one if not profile: raise AppArmorException(_('Syntax Error: Unexpected End of Profile reached in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) if in_contained_hat: hat = profile in_contained_hat = False else: parsed_profiles.append(profile) profile = None initial_comment = '' elif CapabilityRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected capability entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) profile_data[profile][hat]['capability'].add(CapabilityRule.parse(line)) elif RE_PROFILE_LINK.search(line): matches = RE_PROFILE_LINK.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected link entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' subset = matches[3] link = strip_quotes(matches[6]) value = strip_quotes(matches[7]) profile_data[profile][hat][allow]['link'][link]['to'] = value profile_data[profile][hat][allow]['link'][link]['mode'] = profile_data[profile][hat][allow]['link'][link].get('mode', set()) | apparmor.aamode.AA_MAY_LINK if subset: profile_data[profile][hat][allow]['link'][link]['mode'] |= apparmor.aamode.AA_LINK_SUBSET if audit: profile_data[profile][hat][allow]['link'][link]['audit'] = profile_data[profile][hat][allow]['link'][link].get('audit', set()) | apparmor.aamode.AA_LINK_SUBSET else: profile_data[profile][hat][allow]['link'][link]['audit'] = set() elif ChangeProfileRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected change profile entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) profile_data[profile][hat]['change_profile'].add(ChangeProfileRule.parse(line)) elif RE_PROFILE_ALIAS.search(line): matches = RE_PROFILE_ALIAS.search(line).groups() from_name = strip_quotes(matches[0]) to_name = strip_quotes(matches[1]) if profile: profile_data[profile][hat]['alias'][from_name] = to_name else: if not filelist.get(file, False): filelist[file] = hasher() filelist[file]['alias'][from_name] = to_name elif RlimitRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected rlimit entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) profile_data[profile][hat]['rlimit'].add(RlimitRule.parse(line)) elif RE_PROFILE_BOOLEAN.search(line): matches = RE_PROFILE_BOOLEAN.search(line).groups() if profile and not do_include: raise AppArmorException(_('Syntax Error: Unexpected boolean definition found inside profile in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) bool_var = matches[0] value = matches[1] profile_data[profile][hat]['lvar'][bool_var] = value elif RE_PROFILE_VARIABLE.search(line): # variable additions += and = matches = RE_PROFILE_VARIABLE.search(line).groups() list_var = strip_quotes(matches[0]) var_operation = matches[1] value = matches[2] if profile: if not profile_data[profile][hat].get('lvar', False): profile_data[profile][hat]['lvar'][list_var] = [] store_list_var(profile_data[profile]['lvar'], list_var, value, var_operation, file) else: if not filelist[file].get('lvar', False): filelist[file]['lvar'][list_var] = [] store_list_var(filelist[file]['lvar'], list_var, value, var_operation, file) elif RE_PROFILE_CONDITIONAL.search(line): # Conditional Boolean pass elif RE_PROFILE_CONDITIONAL_VARIABLE.search(line): # Conditional Variable defines pass elif RE_PROFILE_CONDITIONAL_BOOLEAN.search(line): # Conditional Boolean defined pass elif RE_PROFILE_BARE_FILE_ENTRY.search(line): matches = RE_PROFILE_BARE_FILE_ENTRY.search(line) if not profile: raise AppArmorException(_('Syntax Error: Unexpected bare file rule found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit, deny, allow_keyword, comment = parse_modifiers(matches) # TODO: honor allow_keyword and comment if deny: allow = 'deny' else: allow = 'allow' mode = apparmor.aamode.AA_BARE_FILE_MODE if not matches.group('owner'): mode |= AA_OTHER(apparmor.aamode.AA_BARE_FILE_MODE) path_rule = profile_data[profile][hat][allow]['path'][ALL] path_rule['mode'] = mode path_rule['audit'] = set() if audit: path_rule['audit'] = mode path_rule['file_prefix'] = True elif RE_PROFILE_PATH_ENTRY.search(line): matches = RE_PROFILE_PATH_ENTRY.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected path entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' user = False if matches[2]: user = True file_prefix = False if matches[3]: file_prefix = True path = strip_quotes(matches[4].strip()) mode = matches[5] nt_name = matches[7] if nt_name: nt_name = nt_name.strip() p_re = convert_regexp(path) try: re.compile(p_re) except: raise AppArmorException(_('Syntax Error: Invalid Regex %(path)s in file: %(file)s line: %(line)s') % { 'path': path, 'file': file, 'line': lineno + 1 }) if not validate_profile_mode(mode, allow, nt_name): raise AppArmorException(_('Invalid mode %(mode)s in file: %(file)s line: %(line)s') % {'mode': mode, 'file': file, 'line': lineno + 1 }) tmpmode = set() if user: tmpmode = str_to_mode('%s::' % mode) else: tmpmode = str_to_mode(mode) profile_data[profile][hat][allow]['path'][path]['mode'] = profile_data[profile][hat][allow]['path'][path].get('mode', set()) | tmpmode if file_prefix: profile_data[profile][hat][allow]['path'][path]['file_prefix'] = True if nt_name: profile_data[profile][hat][allow]['path'][path]['to'] = nt_name if audit: profile_data[profile][hat][allow]['path'][path]['audit'] = profile_data[profile][hat][allow]['path'][path].get('audit', set()) | tmpmode else: profile_data[profile][hat][allow]['path'][path]['audit'] = set() elif re_match_include(line): # Include files include_name = re_match_include(line) if include_name.startswith('local/'): profile_data[profile][hat]['localinclude'][include_name] = True if profile: profile_data[profile][hat]['include'][include_name] = True else: if not filelist.get(file): filelist[file] = hasher() filelist[file]['include'][include_name] = True # If include is a directory if os.path.isdir(profile_dir + '/' + include_name): for file_name in include_dir_filelist(profile_dir, include_name): if not include.get(file_name, False): load_include(file_name) else: if not include.get(include_name, False): load_include(include_name) elif NetworkRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected network entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) # init rule class (if not done yet) if not profile_data[profile][hat].get('network', False): profile_data[profile][hat]['network'] = NetworkRuleset() profile_data[profile][hat]['network'].add(NetworkRule.parse(line)) elif RE_PROFILE_DBUS.search(line): matches = RE_PROFILE_DBUS.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected dbus entry found in file: %(file)s line: %(line)s') % {'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' dbus = matches[2] #parse_dbus_rule(profile_data[profile], dbus, audit, allow) dbus_rule = parse_dbus_rule(dbus) dbus_rule.audit = audit dbus_rule.deny = (allow == 'deny') dbus_rules = profile_data[profile][hat][allow].get('dbus', list()) dbus_rules.append(dbus_rule) profile_data[profile][hat][allow]['dbus'] = dbus_rules elif RE_PROFILE_MOUNT.search(line): matches = RE_PROFILE_MOUNT.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected mount entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' mount = matches[2] mount_rule = parse_mount_rule(mount) mount_rule.audit = audit mount_rule.deny = (allow == 'deny') mount_rules = profile_data[profile][hat][allow].get('mount', list()) mount_rules.append(mount_rule) profile_data[profile][hat][allow]['mount'] = mount_rules elif SignalRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected signal entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) profile_data[profile][hat]['signal'].add(SignalRule.parse(line)) elif PtraceRule.match(line): if not profile: raise AppArmorException(_('Syntax Error: Unexpected ptrace entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) profile_data[profile][hat]['ptrace'].add(PtraceRule.parse(line)) elif RE_PROFILE_PIVOT_ROOT.search(line): matches = RE_PROFILE_PIVOT_ROOT.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected pivot_root entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' pivot_root = matches[2].strip() pivot_root_rule = parse_pivot_root_rule(pivot_root) pivot_root_rule.audit = audit pivot_root_rule.deny = (allow == 'deny') pivot_root_rules = profile_data[profile][hat][allow].get('pivot_root', list()) pivot_root_rules.append(pivot_root_rule) profile_data[profile][hat][allow]['pivot_root'] = pivot_root_rules elif RE_PROFILE_UNIX.search(line): matches = RE_PROFILE_UNIX.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected unix entry found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' unix = matches[2].strip() unix_rule = parse_unix_rule(unix) unix_rule.audit = audit unix_rule.deny = (allow == 'deny') unix_rules = profile_data[profile][hat][allow].get('unix', list()) unix_rules.append(unix_rule) profile_data[profile][hat][allow]['unix'] = unix_rules elif RE_PROFILE_CHANGE_HAT.search(line): matches = RE_PROFILE_CHANGE_HAT.search(line).groups() if not profile: raise AppArmorException(_('Syntax Error: Unexpected change hat declaration found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) aaui.UI_Important(_('Ignoring no longer supported change hat declaration "^%(hat)s," found in file: %(file)s line: %(line)s') % { 'hat': matches[0], 'file': file, 'line': lineno + 1 }) elif RE_PROFILE_HAT_DEF.search(line): # An embedded hat syntax definition starts matches = RE_PROFILE_HAT_DEF.search(line) if not profile: raise AppArmorException(_('Syntax Error: Unexpected hat definition found in file: %(file)s line: %(line)s') % { 'file': file, 'line': lineno + 1 }) in_contained_hat = True hat = matches.group('hat') hat = strip_quotes(hat) # if hat is already known, the filelist check some lines below will error out. # nevertheless, just to be sure, don't overwrite existing profile_data. if not profile_data[profile].get(hat, False): profile_data[profile][hat] = profile_storage(profile, hat, 'parse_profile_data() hat_def') profile_data[profile][hat]['filename'] = file flags = matches.group('flags') profile_data[profile][hat]['flags'] = flags if initial_comment: profile_data[profile][hat]['initial_comment'] = initial_comment initial_comment = '' if filelist[file]['profiles'][profile].get(hat, False) and not do_include: raise AppArmorException(_('Error: Multiple definitions for hat %(hat)s in profile %(profile)s.') % { 'hat': hat, 'profile': profile }) filelist[file]['profiles'][profile][hat] = True elif line[0] == '#': # Handle initial comments if not profile: if line.startswith('# Last Modified:'): continue elif line.startswith('# REPOSITORY:'): # TODO: allow any number of spaces/tabs parts = line.split() if len(parts) == 3 and parts[2] == 'NEVERSUBMIT': repo_data = {'neversubmit': True} elif len(parts) == 5: repo_data = {'url': parts[2], 'user': parts[3], 'id': parts[4]} else: aaui.UI_Important(_('Warning: invalid "REPOSITORY:" line in %s, ignoring.') % file) initial_comment = initial_comment + line + '\n' else: initial_comment = initial_comment + line + '\n' elif not RE_RULE_HAS_COMMA.search(line): # Bah, line continues on to the next line if RE_HAS_COMMENT_SPLIT.search(line): # filter trailing comments lastline = RE_HAS_COMMENT_SPLIT.search(line).group('not_comment') else: lastline = line else: raise AppArmorException(_('Syntax Error: Unknown line found in file %(file)s line %(lineno)s:\n %(line)s') % { 'file': file, 'lineno': lineno + 1, 'line': line }) # Below is not required I'd say if not do_include: for hatglob in cfg['required_hats'].keys(): for parsed_prof in sorted(parsed_profiles): if re.search(hatglob, parsed_prof): for hat in cfg['required_hats'][hatglob].split(): if not profile_data[parsed_prof].get(hat, False): profile_data[parsed_prof][hat] = profile_storage(parsed_prof, hat, 'parse_profile_data() required_hats') # End of file reached but we're stuck in a profile if profile and not do_include: raise AppArmorException(_("Syntax Error: Missing '}' or ','. Reached end of file %(file)s while inside profile %(profile)s") % { 'file': file, 'profile': profile }) return profile_data # RE_DBUS_ENTRY = re.compile('^dbus\s*()?,\s*$') # use stuff like '(?P(send|write|w|receive|read|r|rw))' def parse_dbus_rule(line): # XXX Do real parsing here return aarules.Raw_DBUS_Rule(line) #matches = RE_DBUS_ENTRY.search(line).groups() #if len(matches) == 1: # XXX warn? # matched nothing # print('no matches') # return aarules.DBUS_Rule() #print(line) def parse_mount_rule(line): # XXX Do real parsing here return aarules.Raw_Mount_Rule(line) def parse_pivot_root_rule(line): # XXX Do real parsing here return aarules.Raw_Pivot_Root_Rule(line) def parse_unix_rule(line): # XXX Do real parsing here return aarules.Raw_Unix_Rule(line) def separate_vars(vs): """Returns a list of all the values for a variable""" data = set() vs = vs.strip() RE_VARS = re.compile('^(("[^"]*")|([^"\s]+))\s*(.*)$') while RE_VARS.search(vs): matches = RE_VARS.search(vs).groups() data.add(strip_quotes(matches[0])) vs = matches[3].strip() if vs: raise AppArmorException('Variable assignments contains invalid parts (unbalanced quotes?): %s' % vs) return data def is_active_profile(pname): if aa.get(pname, False): return True else: return False def store_list_var(var, list_var, value, var_operation, filename): """Store(add new variable or add values to variable) the variables encountered in the given list_var - the 'var' parameter will be modified - 'list_var' is the variable name, for example '@{foo}' """ vlist = separate_vars(value) if var_operation == '=': if not var.get(list_var, False): var[list_var] = set(vlist) else: raise AppArmorException(_('Redefining existing variable %(variable)s: %(value)s in %(file)s') % { 'variable': list_var, 'value': value, 'file': filename }) elif var_operation == '+=': if var.get(list_var, False): var[list_var] |= vlist else: raise AppArmorException(_('Values added to a non-existing variable %(variable)s: %(value)s in %(file)s') % { 'variable': list_var, 'value': value, 'file': filename }) else: raise AppArmorException(_('Unknown variable operation %(operation)s for variable %(variable)s in %(file)s') % { 'operation': var_operation, 'variable': list_var, 'file': filename }) def escape(escape): escape = strip_quotes(escape) escape = re.sub('((?') def write_change_profile(prof_data, depth): data = [] if prof_data.get('change_profile', False): data = prof_data['change_profile'].get_clean(depth) return data def write_alias(prof_data, depth): return write_pair(prof_data, depth, '', 'alias', 'alias ', ' -> ', ',', quote_if_needed) def write_rlimits(prof_data, depth): data = [] if prof_data.get('rlimit', False): data = prof_data['rlimit'].get_clean(depth) return data def var_transform(ref): data = [] for value in ref: if not value: value = '""' data.append(quote_if_needed(value)) return ' '.join(data) def write_list_vars(prof_data, depth): return write_pair(prof_data, depth, '', 'lvar', '', ' = ', '', var_transform) def write_capabilities(prof_data, depth): data = [] if prof_data.get('capability', False): data = prof_data['capability'].get_clean(depth) return data def write_netdomain(prof_data, depth): data = [] if prof_data.get('network', False): data = prof_data['network'].get_clean(depth) return data def write_dbus_rules(prof_data, depth, allow): pre = ' ' * depth data = [] # no dbus rules, so return if not prof_data[allow].get('dbus', False): return data for dbus_rule in prof_data[allow]['dbus']: data.append('%s%s' % (pre, dbus_rule.serialize())) data.append('') return data def write_dbus(prof_data, depth): data = write_dbus_rules(prof_data, depth, 'deny') data += write_dbus_rules(prof_data, depth, 'allow') return data def write_mount_rules(prof_data, depth, allow): pre = ' ' * depth data = [] # no mount rules, so return if not prof_data[allow].get('mount', False): return data for mount_rule in prof_data[allow]['mount']: data.append('%s%s' % (pre, mount_rule.serialize())) data.append('') return data def write_mount(prof_data, depth): data = write_mount_rules(prof_data, depth, 'deny') data += write_mount_rules(prof_data, depth, 'allow') return data def write_signal(prof_data, depth): data = [] if prof_data.get('signal', False): data = prof_data['signal'].get_clean(depth) return data def write_ptrace(prof_data, depth): data = [] if prof_data.get('ptrace', False): data = prof_data['ptrace'].get_clean(depth) return data def write_pivot_root_rules(prof_data, depth, allow): pre = ' ' * depth data = [] # no pivot_root rules, so return if not prof_data[allow].get('pivot_root', False): return data for pivot_root_rule in prof_data[allow]['pivot_root']: data.append('%s%s' % (pre, pivot_root_rule.serialize())) data.append('') return data def write_pivot_root(prof_data, depth): data = write_pivot_root_rules(prof_data, depth, 'deny') data += write_pivot_root_rules(prof_data, depth, 'allow') return data def write_unix_rules(prof_data, depth, allow): pre = ' ' * depth data = [] # no unix rules, so return if not prof_data[allow].get('unix', False): return data for unix_rule in prof_data[allow]['unix']: data.append('%s%s' % (pre, unix_rule.serialize())) data.append('') return data def write_unix(prof_data, depth): data = write_unix_rules(prof_data, depth, 'deny') data += write_unix_rules(prof_data, depth, 'allow') return data def write_link_rules(prof_data, depth, allow): pre = ' ' * depth data = [] allowstr = set_allow_str(allow) if prof_data[allow].get('link', False): for path in sorted(prof_data[allow]['link'].keys()): to_name = prof_data[allow]['link'][path]['to'] subset = '' if prof_data[allow]['link'][path]['mode'] & apparmor.aamode.AA_LINK_SUBSET: subset = 'subset' audit = '' if prof_data[allow]['link'][path].get('audit', False): audit = 'audit ' path = quote_if_needed(path) to_name = quote_if_needed(to_name) data.append('%s%s%slink %s%s -> %s,' % (pre, audit, allowstr, subset, path, to_name)) data.append('') return data def write_links(prof_data, depth): data = write_link_rules(prof_data, depth, 'deny') data += write_link_rules(prof_data, depth, 'allow') return data def write_path_rules(prof_data, depth, allow): pre = ' ' * depth data = [] allowstr = set_allow_str(allow) if prof_data[allow].get('path', False): for path in sorted(prof_data[allow]['path'].keys()): filestr = '' if prof_data[allow]['path'][path].get('file_prefix', False): filestr = 'file' mode = prof_data[allow]['path'][path]['mode'] audit = prof_data[allow]['path'][path]['audit'] tail = '' if prof_data[allow]['path'][path].get('to', False): tail = ' -> %s' % prof_data[allow]['path'][path]['to'] user, other = split_mode(mode) user_audit, other_audit = split_mode(audit) while user or other: ownerstr = '' tmpmode = 0 tmpaudit = False if user - other: # if no other mode set ownerstr = 'owner ' tmpmode = user - other tmpaudit = user_audit user = user - tmpmode else: if user_audit - other_audit & user: ownerstr = 'owner ' tmpaudit = user_audit - other_audit & user tmpmode = user & tmpaudit user = user - tmpmode else: ownerstr = '' tmpmode = user | other tmpaudit = user_audit | other_audit user = user - tmpmode other = other - tmpmode if path == ALL: path = '' if tmpmode & tmpaudit: modestr = mode_to_str(tmpmode & tmpaudit) if modestr: modestr = ' ' + modestr path = quote_if_needed(path) if filestr and path: filestr += ' ' data.append('%saudit %s%s%s%s%s%s,' % (pre, allowstr, ownerstr, filestr, path, modestr, tail)) tmpmode = tmpmode - tmpaudit if tmpmode: modestr = mode_to_str(tmpmode) if modestr: modestr = ' ' + modestr path = quote_if_needed(path) if filestr and path: filestr += ' ' data.append('%s%s%s%s%s%s%s,' % (pre, allowstr, ownerstr, filestr, path, modestr, tail)) data.append('') return data def write_paths(prof_data, depth): data = write_path_rules(prof_data, depth, 'deny') data += write_path_rules(prof_data, depth, 'allow') return data def write_rules(prof_data, depth): data = write_alias(prof_data, depth) data += write_list_vars(prof_data, depth) data += write_includes(prof_data, depth) data += write_rlimits(prof_data, depth) data += write_capabilities(prof_data, depth) data += write_netdomain(prof_data, depth) data += write_dbus(prof_data, depth) data += write_mount(prof_data, depth) data += write_signal(prof_data, depth) data += write_ptrace(prof_data, depth) data += write_pivot_root(prof_data, depth) data += write_unix(prof_data, depth) data += write_links(prof_data, depth) data += write_paths(prof_data, depth) data += write_change_profile(prof_data, depth) return data def write_piece(profile_data, depth, name, nhat, write_flags): pre = ' ' * depth data = [] wname = None inhat = False if name == nhat: wname = name else: wname = name + '//' + nhat name = nhat inhat = True data += write_header(profile_data[name], depth, wname, False, write_flags) data += write_rules(profile_data[name], depth + 1) pre2 = ' ' * (depth + 1) if not inhat: # Embedded hats for hat in list(filter(lambda x: x != name, sorted(profile_data.keys()))): if not profile_data[hat]['external']: data.append('') if profile_data[hat]['profile']: data += list(map(str, write_header(profile_data[hat], depth + 1, hat, True, write_flags))) else: data += list(map(str, write_header(profile_data[hat], depth + 1, '^' + hat, True, write_flags))) data += list(map(str, write_rules(profile_data[hat], depth + 2))) data.append('%s}' % pre2) data.append('%s}' % pre) # External hats for hat in list(filter(lambda x: x != name, sorted(profile_data.keys()))): if name == nhat and profile_data[hat].get('external', False): data.append('') data += list(map(lambda x: ' %s' % x, write_piece(profile_data, depth - 1, name, nhat, write_flags))) data.append(' }') return data def serialize_profile(profile_data, name, options): string = '' include_metadata = False include_flags = True data = [] if options: # and type(options) == dict: if options.get('METADATA', False): include_metadata = True if options.get('NO_FLAGS', False): include_flags = False if include_metadata: string = '# Last Modified: %s\n' % time.asctime() if (profile_data[name].get('repo', False) and profile_data[name]['repo']['url'] and profile_data[name]['repo']['user'] and profile_data[name]['repo']['id']): repo = profile_data[name]['repo'] string += '# REPOSITORY: %s %s %s\n' % (repo['url'], repo['user'], repo['id']) elif profile_data[name]['repo']['neversubmit']: string += '# REPOSITORY: NEVERSUBMIT\n' # if profile_data[name].get('initial_comment', False): # comment = profile_data[name]['initial_comment'] # comment.replace('\\n', '\n') # string += comment + '\n' prof_filename = get_profile_filename(name) if filelist.get(prof_filename, False): data += write_alias(filelist[prof_filename], 0) data += write_list_vars(filelist[prof_filename], 0) data += write_includes(filelist[prof_filename], 0) #Here should be all the profiles from the files added write after global/common stuff for prof in sorted(filelist[prof_filename]['profiles'].keys()): if prof != name: if original_aa[prof][prof].get('initial_comment', False): comment = original_aa[prof][prof]['initial_comment'] comment.replace('\\n', '\n') data += [comment + '\n'] data += write_piece(original_aa[prof], 0, prof, prof, include_flags) else: if profile_data[name].get('initial_comment', False): comment = profile_data[name]['initial_comment'] comment.replace('\\n', '\n') data += [comment + '\n'] data += write_piece(profile_data, 0, name, name, include_flags) string += '\n'.join(data) return string + '\n' def serialize_parse_profile_start(line, file, lineno, profile, hat, prof_data_profile, prof_data_external, correct): (profile, hat, attachment, flags, in_contained_hat, pps_set_profile, pps_set_hat_external) = parse_profile_start(line, file, lineno, profile, hat) if hat and profile != hat and '%s//%s'%(profile, hat) in line and not prof_data_external: correct = False return (profile, hat, attachment, flags, in_contained_hat, correct) def serialize_profile_from_old_profile(profile_data, name, options): data = [] string = '' include_metadata = False include_flags = True prof_filename = get_profile_filename(name) write_filelist = deepcopy(filelist[prof_filename]) write_prof_data = deepcopy(profile_data) # XXX profile_data / write_prof_data contain only one profile with its hats # XXX this will explode if a file contains multiple profiles, see https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1528139 # XXX fixing this needs lots of write_prof_data[hat] -> write_prof_data[profile][hat] changes (and of course also a change in the calling code) # XXX (the better option is a full rewrite of serialize_profile_from_old_profile()) if options: # and type(options) == dict: if options.get('METADATA', False): include_metadata = True if options.get('NO_FLAGS', False): include_flags = False if include_metadata: string = '# Last Modified: %s\n' % time.asctime() if (profile_data[name].get('repo', False) and profile_data[name]['repo']['url'] and profile_data[name]['repo']['user'] and profile_data[name]['repo']['id']): repo = profile_data[name]['repo'] string += '# REPOSITORY: %s %s %s\n' % (repo['url'], repo['user'], repo['id']) elif profile_data[name]['repo']['neversubmit']: string += '# REPOSITORY: NEVERSUBMIT\n' if not os.path.isfile(prof_filename): raise AppArmorException(_("Can't find existing profile to modify")) # profiles_list = filelist[prof_filename].keys() # XXX with open_file_read(prof_filename) as f_in: profile = None hat = None write_methods = {'alias': write_alias, 'lvar': write_list_vars, 'include': write_includes, 'rlimit': write_rlimits, 'capability': write_capabilities, 'network': write_netdomain, 'dbus': write_dbus, 'mount': write_mount, 'signal': write_signal, 'ptrace': write_ptrace, 'pivot_root': write_pivot_root, 'unix': write_unix, 'link': write_links, 'path': write_paths, 'change_profile': write_change_profile, } default_write_order = [ 'alias', 'lvar', 'include', 'rlimit', 'capability', 'network', 'dbus', 'mount', 'signal', 'ptrace', 'pivot_root', 'unix', 'link', 'path', 'change_profile', ] # prof_correct = True # XXX correct? segments = {'alias': False, 'lvar': False, 'include': False, 'rlimit': False, 'capability': False, 'network': False, 'dbus': False, 'mount': True, # not handled otherwise yet 'signal': True, # not handled otherwise yet 'ptrace': True, # not handled otherwise yet 'pivot_root': True, # not handled otherwise yet 'unix': True, # not handled otherwise yet 'link': False, 'path': False, 'change_profile': False, 'include_local_started': False, # unused } def write_prior_segments(prof_data, segments, line): data = [] for segs in list(filter(lambda x: segments[x], segments.keys())): depth = len(line) - len(line.lstrip()) data += write_methods[segs](prof_data, int(depth / 2)) segments[segs] = False # delete rules from prof_data to avoid duplication (they are in data now) if prof_data['allow'].get(segs, False): prof_data['allow'].pop(segs) if prof_data['deny'].get(segs, False): prof_data['deny'].pop(segs) if prof_data.get(segs, False): t = type(prof_data[segs]) prof_data[segs] = t() return data #data.append('reading prof') for line in f_in: correct = True line = line.rstrip('\n') #data.append(' ')#data.append('read: '+line) if RE_PROFILE_START.search(line): (profile, hat, attachment, flags, in_contained_hat, correct) = serialize_parse_profile_start( line, prof_filename, None, profile, hat, write_prof_data[hat]['profile'], write_prof_data[hat]['external'], correct) if not write_prof_data[hat]['name'] == profile: correct = False if not write_filelist['profiles'][profile][hat] is True: correct = False if not write_prof_data[hat]['flags'] == flags: correct = False #Write the profile start if correct: if write_filelist: data += write_alias(write_filelist, 0) data += write_list_vars(write_filelist, 0) data += write_includes(write_filelist, 0) data.append(line) else: if write_prof_data[hat]['name'] == profile: depth = len(line) - len(line.lstrip()) data += write_header(write_prof_data[name], int(depth / 2), name, False, include_flags) elif RE_PROFILE_END.search(line): # DUMP REMAINDER OF PROFILE if profile: depth = int(len(line) - len(line.lstrip()) / 2) + 1 # first write sections that were modified #for segs in write_methods.keys(): for segs in default_write_order: if segments[segs]: data += write_methods[segs](write_prof_data[name], depth) segments[segs] = False # delete rules from write_prof_data to avoid duplication (they are in data now) if write_prof_data[name]['allow'].get(segs, False): write_prof_data[name]['allow'].pop(segs) if write_prof_data[name]['deny'].get(segs, False): write_prof_data[name]['deny'].pop(segs) if write_prof_data[name].get(segs, False): t = type(write_prof_data[name][segs]) write_prof_data[name][segs] = t() # then write everything else for segs in default_write_order: data += write_methods[segs](write_prof_data[name], depth) write_prof_data.pop(name) #Append local includes data.append(line) if not in_contained_hat: # Embedded hats depth = int((len(line) - len(line.lstrip())) / 2) pre2 = ' ' * (depth + 1) for hat in list(filter(lambda x: x != name, sorted(profile_data.keys()))): if not profile_data[hat]['external']: data.append('') if profile_data[hat]['profile']: data += list(map(str, write_header(profile_data[hat], depth + 1, hat, True, include_flags))) else: data += list(map(str, write_header(profile_data[hat], depth + 1, '^' + hat, True, include_flags))) data += list(map(str, write_rules(profile_data[hat], depth + 2))) data.append('%s}' % pre2) # External hats for hat in list(filter(lambda x: x != name, sorted(profile_data.keys()))): if profile_data[hat].get('external', False): data.append('') data += list(map(lambda x: ' %s' % x, write_piece(profile_data, depth - 1, name, name, include_flags))) data.append(' }') if in_contained_hat: #Hat processed, remove it hat = profile in_contained_hat = False else: profile = None elif CapabilityRule.match(line): cap = CapabilityRule.parse(line) if write_prof_data[hat]['capability'].is_covered(cap, True, True): if not segments['capability'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['capability'] = True write_prof_data[hat]['capability'].delete(cap) data.append(line) else: # To-Do pass elif RE_PROFILE_LINK.search(line): matches = RE_PROFILE_LINK.search(line).groups() audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' subset = matches[3] link = strip_quotes(matches[6]) value = strip_quotes(matches[7]) if not write_prof_data[hat][allow]['link'][link]['to'] == value: correct = False if not write_prof_data[hat][allow]['link'][link]['mode'] & apparmor.aamode.AA_MAY_LINK: correct = False if subset and not write_prof_data[hat][allow]['link'][link]['mode'] & apparmor.aamode.AA_LINK_SUBSET: correct = False if audit and not write_prof_data[hat][allow]['link'][link]['audit'] & apparmor.aamode.AA_LINK_SUBSET: correct = False if correct: if not segments['link'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['link'] = True write_prof_data[hat][allow]['link'].pop(link) data.append(line) else: # To-Do pass elif ChangeProfileRule.match(line): change_profile_obj = ChangeProfileRule.parse(line) if write_prof_data[hat]['change_profile'].is_covered(change_profile_obj, True, True): if not segments['change_profile'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['change_profile'] = True write_prof_data[hat]['change_profile'].delete(change_profile_obj) data.append(line) elif RE_PROFILE_ALIAS.search(line): matches = RE_PROFILE_ALIAS.search(line).groups() from_name = strip_quotes(matches[0]) to_name = strip_quotes(matches[1]) if profile: if not write_prof_data[hat]['alias'][from_name] == to_name: correct = False else: if not write_filelist['alias'][from_name] == to_name: correct = False if correct: if not segments['alias'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['alias'] = True if profile: write_prof_data[hat]['alias'].pop(from_name) else: write_filelist['alias'].pop(from_name) data.append(line) else: #To-Do pass elif RlimitRule.match(line): rlimit_obj = RlimitRule.parse(line) if write_prof_data[hat]['rlimit'].is_covered(rlimit_obj, True, True): if not segments['rlimit'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['rlimit'] = True write_prof_data[hat]['rlimit'].delete(rlimit_obj) data.append(line) else: #To-Do pass elif RE_PROFILE_BOOLEAN.search(line): matches = RE_PROFILE_BOOLEAN.search(line).groups() bool_var = matches[0] value = matches[1] if not write_prof_data[hat]['lvar'][bool_var] == value: correct = False if correct: if not segments['lvar'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['lvar'] = True write_prof_data[hat]['lvar'].pop(bool_var) data.append(line) else: #To-Do pass elif RE_PROFILE_VARIABLE.search(line): matches = RE_PROFILE_VARIABLE.search(line).groups() list_var = strip_quotes(matches[0]) var_operation = matches[1] value = strip_quotes(matches[2]) var_set = hasher() if var_operation == '+=': correct = False # adding proper support for "add to variable" needs big changes # (like storing a variable's "history" - where it was initially defined and what got added where) # so just skip any comparison and assume a non-match elif profile: store_list_var(var_set, list_var, value, var_operation, prof_filename) if not var_set[list_var] == write_prof_data['lvar'].get(list_var, False): correct = False else: store_list_var(var_set, list_var, value, var_operation, prof_filename) if not var_set[list_var] == write_filelist['lvar'].get(list_var, False): correct = False if correct: if not segments['lvar'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['lvar'] = True if profile: write_prof_data[hat]['lvar'].pop(list_var) else: write_filelist['lvar'].pop(list_var) data.append(line) else: #To-Do pass elif RE_PROFILE_BARE_FILE_ENTRY.search(line): matches = RE_PROFILE_BARE_FILE_ENTRY.search(line).groups() allow = 'allow' if matches[1] and matches[1].strip() == 'deny': allow = 'deny' mode = apparmor.aamode.AA_BARE_FILE_MODE if not matches[2]: mode |= AA_OTHER(apparmor.aamode.AA_BARE_FILE_MODE) audit = set() if matches[0]: audit = mode path_rule = write_prof_data[hat][allow]['path'][ALL] if path_rule.get('mode', set()) & mode and \ (not audit or path_rule.get('audit', set()) & audit) and \ path_rule.get('file_prefix', set()): if not segments['path'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['path'] = True write_prof_data[hat][allow]['path'].pop(ALL) data.append(line) elif RE_PROFILE_PATH_ENTRY.search(line): matches = RE_PROFILE_PATH_ENTRY.search(line).groups() audit = False if matches[0]: audit = True allow = 'allow' if matches[1] and matches[1].split() == 'deny': allow = 'deny' user = False if matches[2]: user = True path = strip_quotes(matches[4].strip()) mode = matches[5] nt_name = matches[7] if nt_name: nt_name = nt_name.strip() tmpmode = set() if user: tmpmode = str_to_mode('%s::' % mode) else: tmpmode = str_to_mode(mode) if not write_prof_data[hat][allow]['path'].get(path): correct = False else: if not write_prof_data[hat][allow]['path'][path].get('mode', set()) & tmpmode: correct = False if nt_name and not write_prof_data[hat][allow]['path'][path].get('to', False) == nt_name: correct = False if audit and not write_prof_data[hat][allow]['path'][path].get('audit', set()) & tmpmode: correct = False if correct: if not segments['path'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['path'] = True write_prof_data[hat][allow]['path'].pop(path) data.append(line) else: #To-Do pass elif re_match_include(line): include_name = re_match_include(line) if profile: if write_prof_data[hat]['include'].get(include_name, False): if not segments['include'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['include'] = True write_prof_data[hat]['include'].pop(include_name) data.append(line) else: if write_filelist['include'].get(include_name, False): write_filelist['include'].pop(include_name) data.append(line) elif NetworkRule.match(line): network_obj = NetworkRule.parse(line) if write_prof_data[hat]['network'].is_covered(network_obj, True, True): if not segments['network'] and True in segments.values(): data += write_prior_segments(write_prof_data[name], segments, line) segments['network'] = True write_prof_data[hat]['network'].delete(network_obj) data.append(line) elif RE_PROFILE_CHANGE_HAT.search(line): # "^hat," declarations are no longer supported, ignore them and don't write out the line # (parse_profile_data() already prints a warning about that) pass elif RE_PROFILE_HAT_DEF.search(line): matches = RE_PROFILE_HAT_DEF.search(line) in_contained_hat = True hat = matches.group('hat') hat = strip_quotes(hat) flags = matches.group('flags') if not write_prof_data[hat]['flags'] == flags: correct = False if not write_filelist['profile'][profile][hat]: correct = False if correct: data.append(line) else: #To-Do pass else: if correct: data.append(line) else: #To-Do pass # data.append('prof done') # if write_filelist: # data += write_alias(write_filelist, 0) # data += write_list_vars(write_filelist, 0) # data += write_includes(write_filelist, 0) # data.append('from filelist over') # data += write_piece(write_prof_data, 0, name, name, include_flags) string += '\n'.join(data) return string + '\n' def write_profile_ui_feedback(profile): aaui.UI_Info(_('Writing updated profile for %s.') % profile) write_profile(profile) def write_profile(profile): prof_filename = None if aa[profile][profile].get('filename', False): prof_filename = aa[profile][profile]['filename'] else: prof_filename = get_profile_filename(profile) newprof = tempfile.NamedTemporaryFile('w', suffix='~', delete=False, dir=profile_dir) if os.path.exists(prof_filename): shutil.copymode(prof_filename, newprof.name) else: #permission_600 = stat.S_IRUSR | stat.S_IWUSR # Owner read and write #os.chmod(newprof.name, permission_600) pass serialize_options = {} serialize_options['METADATA'] = True profile_string = serialize_profile(aa[profile], profile, serialize_options) newprof.write(profile_string) newprof.close() os.rename(newprof.name, prof_filename) if profile in changed: changed.pop(profile) else: debug_logger.info("Unchanged profile written: %s (not listed in 'changed' list)" % profile) original_aa[profile] = deepcopy(aa[profile]) def matchliteral(aa_regexp, literal): p_regexp = '^' + convert_regexp(aa_regexp) + '$' match = False try: match = re.search(p_regexp, literal) except: return None return match def profile_known_exec(profile, typ, exec_target): if typ == 'exec': cm = None am = None m = [] cm, am, m = rematchfrag(profile, 'deny', exec_target) if cm & apparmor.aamode.AA_MAY_EXEC: return -1 cm, am, m = match_prof_incs_to_path(profile, 'deny', exec_target) if cm & apparmor.aamode.AA_MAY_EXEC: return -1 cm, am, m = rematchfrag(profile, 'allow', exec_target) if cm & apparmor.aamode.AA_MAY_EXEC: return 1 cm, am, m = match_prof_incs_to_path(profile, 'allow', exec_target) if cm & apparmor.aamode.AA_MAY_EXEC: return 1 return 0 def is_known_rule(profile, rule_type, rule_obj): # XXX get rid of get() checks after we have a proper function to initialize a profile if profile.get(rule_type, False): if profile[rule_type].is_covered(rule_obj, False): return True includelist = list(profile['include'].keys()) checked = [] while includelist: incname = includelist.pop(0) checked.append(incname) if os.path.isdir(profile_dir + '/' + incname): includelist += include_dir_filelist(profile_dir, incname) else: if include[incname][incname].get(rule_type, False): if include[incname][incname][rule_type].is_covered(rule_obj, False): return True for childinc in include[incname][incname]['include'].keys(): if childinc not in checked: includelist += [childinc] return False def reload_base(bin_path): if not check_for_apparmor(): return None prof_filename = get_profile_filename(bin_path) # XXX use reload_profile() from tools.py instead (and don't hide output in /dev/null) subprocess.call("cat '%s' | %s -I%s -r >/dev/null 2>&1" % (prof_filename, parser, profile_dir), shell=True) def reload(bin_path): bin_path = find_executable(bin_path) if not bin_path: return None return reload_base(bin_path) def get_include_data(filename): data = [] filename = profile_dir + '/' + filename if os.path.exists(filename): with open_file_read(filename) as f_in: data = f_in.readlines() else: raise AppArmorException(_('File Not Found: %s') % filename) return data def include_dir_filelist(profile_dir, include_name): '''returns a list of files in the given profile_dir/include_name directory, except skippable files''' files = [] for path in os.listdir(profile_dir + '/' + include_name): path = path.strip() if is_skippable_file(path): continue if os.path.isfile(profile_dir + '/' + include_name + '/' + path): file_name = include_name + '/' + path file_name = file_name.replace(profile_dir + '/', '') files.append(file_name) return files def load_include(incname): load_includeslist = [incname] while load_includeslist: incfile = load_includeslist.pop(0) if include.get(incfile, {}).get(incfile, False): pass # already read, do nothing elif os.path.isfile(profile_dir + '/' + incfile): data = get_include_data(incfile) incdata = parse_profile_data(data, incfile, True) attach_profile_data(include, incdata) #If the include is a directory means include all subfiles elif os.path.isdir(profile_dir + '/' + incfile): load_includeslist += include_dir_filelist(profile_dir, incfile) else: raise AppArmorException("Include file %s not found" % (profile_dir + '/' + incfile) ) return 0 def rematchfrag(frag, allow, path): combinedmode = set() combinedaudit = set() matches = [] if not frag: return combinedmode, combinedaudit, matches for entry in frag[allow]['path'].keys(): match = matchliteral(entry, path) if match: #print(frag[allow]['path'][entry]['mode']) combinedmode |= frag[allow]['path'][entry].get('mode', set()) combinedaudit |= frag[allow]['path'][entry].get('audit', set()) matches.append(entry) return combinedmode, combinedaudit, matches def match_include_to_path(incname, allow, path): combinedmode = set() combinedaudit = set() matches = [] includelist = [incname] while includelist: incfile = str(includelist.pop(0)) # ret = load_include(incfile) load_include(incfile) if not include.get(incfile, {}): continue cm, am, m = rematchfrag(include[incfile].get(incfile, {}), allow, path) #print(incfile, cm, am, m) if cm: combinedmode |= cm combinedaudit |= am matches += m if path in include[incfile][incfile][allow]['path']: combinedmode |= include[incfile][incfile][allow]['path'][path]['mode'] combinedaudit |= include[incfile][incfile][allow]['path'][path]['audit'] if include[incfile][incfile]['include'].keys(): includelist += include[incfile][incfile]['include'].keys() return combinedmode, combinedaudit, matches def match_prof_incs_to_path(frag, allow, path): combinedmode = set() combinedaudit = set() matches = [] includelist = list(frag['include'].keys()) while includelist: incname = includelist.pop(0) cm, am, m = match_include_to_path(incname, allow, path) if cm: combinedmode |= cm combinedaudit |= am matches += m return combinedmode, combinedaudit, matches def check_qualifiers(program): if cfg['qualifiers'].get(program, False): if cfg['qualifiers'][program] != 'p': fatal_error(_("%s is currently marked as a program that should not have its own\nprofile. Usually, programs are marked this way if creating a profile for \nthem is likely to break the rest of the system. If you know what you\'re\ndoing and are certain you want to create a profile for this program, edit\nthe corresponding entry in the [qualifiers] section in /etc/apparmor/logprof.conf.") % program) return False def get_subdirectories(current_dir): """Returns a list of all directories directly inside given directory""" if sys.version_info < (3, 0): return os.walk(current_dir).next()[1] else: return os.walk(current_dir).__next__()[1] def loadincludes(): incdirs = get_subdirectories(profile_dir) for idir in incdirs: if is_skippable_dir(idir): continue for dirpath, dirname, files in os.walk(profile_dir + '/' + idir): if is_skippable_dir(dirpath): continue for fi in files: if is_skippable_file(fi): continue else: fi = dirpath + '/' + fi fi = fi.replace(profile_dir + '/', '', 1) load_include(fi) def glob_common(path): globs = [] if re.search('[\d\.]+\.so$', path) or re.search('\.so\.[\d\.]+$', path): libpath = path libpath = re.sub('[\d\.]+\.so$', '*.so', libpath) libpath = re.sub('\.so\.[\d\.]+$', '.so.*', libpath) if libpath != path: globs.append(libpath) for glob in cfg['globs']: if re.search(glob, path): globbedpath = path globbedpath = re.sub(glob, cfg['globs'][glob], path) if globbedpath != path: globs.append(globbedpath) return sorted(set(globs)) def combine_name(name1, name2): if name1 == name2: return name1 else: return '%s^%s' % (name1, name2) def commonprefix(new, old): match = re.search(r'^([^\0]*)[^\0]*(\0\1[^\0]*)*$', '\0'.join([new, old])) if match: return match.groups()[0] return match def commonsuffix(new, old): match = commonprefix(new[-1::-1], old[-1::-1]) if match: return match[-1::-1] def matchregexp(new, old): if re.search('\{.*(\,.*)*\}', old): return None # if re.search('\[.+\]', old) or re.search('\*', old) or re.search('\?', old): # # new_reg = convert_regexp(new) # old_reg = convert_regexp(old) # # pref = commonprefix(new, old) # if pref: # if convert_regexp('(*,**)$') in pref: # pref = pref.replace(convert_regexp('(*,**)$'), '') # new = new.replace(pref, '', 1) # old = old.replace(pref, '', 1) # # suff = commonsuffix(new, old) # if suffix: # pass new_reg = convert_regexp(new) if re.search(new_reg, old): return True return None def logger_path(): logger = conf.find_first_file(cfg['settings']['logger']) or '/bin/logger' if not os.path.isfile(logger) or not os.access(logger, os.EX_OK): raise AppArmorException("Can't find logger!\nPlease make sure %s exists, or update the 'logger' path in logprof.conf." % logger) return logger ######Initialisations###### conf = apparmor.config.Config('ini', CONFDIR) cfg = conf.read_config('logprof.conf') # prevent various failures if logprof.conf doesn't exist if not cfg.sections(): cfg.add_section('settings') cfg.add_section('required_hats') if cfg['settings'].get('default_owner_prompt', False): cfg['settings']['default_owner_prompt'] = '' profile_dir = conf.find_first_dir(cfg['settings'].get('profiledir')) or '/etc/apparmor.d' if not os.path.isdir(profile_dir): raise AppArmorException('Can\'t find AppArmor profiles') extra_profile_dir = conf.find_first_dir(cfg['settings'].get('inactive_profiledir')) or '/usr/share/apparmor/extra-profiles/' parser = conf.find_first_file(cfg['settings'].get('parser')) or '/sbin/apparmor_parser' if not os.path.isfile(parser) or not os.access(parser, os.EX_OK): raise AppArmorException('Can\'t find apparmor_parser')