| # In order to support a deterministic set of 'dynamic' users/groups, |
| # we need a function to reformat the params based on a static file |
| def update_useradd_static_config(d): |
| import argparse |
| import itertools |
| import re |
| |
| class myArgumentParser( argparse.ArgumentParser ): |
| def _print_message(self, message, file=None): |
| bb.warn("%s - %s: %s" % (d.getVar('PN', True), pkg, message)) |
| |
| # This should never be called... |
| def exit(self, status=0, message=None): |
| message = message or ("%s - %s: useradd.bbclass: Argument parsing exited" % (d.getVar('PN', True), pkg)) |
| error(message) |
| |
| def error(self, message): |
| raise bb.build.FuncFailed(message) |
| |
| def list_extend(iterable, length, obj = None): |
| """Ensure that iterable is the specified length by extending with obj |
| and return it as a list""" |
| return list(itertools.islice(itertools.chain(iterable, itertools.repeat(obj)), length)) |
| |
| def merge_files(file_list, exp_fields): |
| """Read each passwd/group file in file_list, split each line and create |
| a dictionary with the user/group names as keys and the split lines as |
| values. If the user/group name already exists in the dictionary, then |
| update any fields in the list with the values from the new list (if they |
| are set).""" |
| id_table = dict() |
| for conf in file_list.split(): |
| if os.path.exists(conf): |
| f = open(conf, "r") |
| for line in f: |
| if line.startswith('#'): |
| continue |
| # Make sure there always are at least exp_fields elements in |
| # the field list. This allows for leaving out trailing |
| # colons in the files. |
| fields = list_extend(line.rstrip().split(":"), exp_fields) |
| if fields[0] not in id_table: |
| id_table[fields[0]] = fields |
| else: |
| id_table[fields[0]] = list(itertools.imap(lambda x, y: x or y, fields, id_table[fields[0]])) |
| |
| return id_table |
| |
| # We parse and rewrite the useradd components |
| def rewrite_useradd(params): |
| # The following comes from --help on useradd from shadow |
| parser = myArgumentParser(prog='useradd') |
| parser.add_argument("-b", "--base-dir", metavar="BASE_DIR", help="base directory for the home directory of the new account") |
| parser.add_argument("-c", "--comment", metavar="COMMENT", help="GECOS field of the new account") |
| parser.add_argument("-d", "--home-dir", metavar="HOME_DIR", help="home directory of the new account") |
| parser.add_argument("-D", "--defaults", help="print or change default useradd configuration", action="store_true") |
| parser.add_argument("-e", "--expiredate", metavar="EXPIRE_DATE", help="expiration date of the new account") |
| parser.add_argument("-f", "--inactive", metavar="INACTIVE", help="password inactivity period of the new account") |
| parser.add_argument("-g", "--gid", metavar="GROUP", help="name or ID of the primary group of the new account") |
| parser.add_argument("-G", "--groups", metavar="GROUPS", help="list of supplementary groups of the new account") |
| parser.add_argument("-k", "--skel", metavar="SKEL_DIR", help="use this alternative skeleton directory") |
| parser.add_argument("-K", "--key", metavar="KEY=VALUE", help="override /etc/login.defs defaults") |
| parser.add_argument("-l", "--no-log-init", help="do not add the user to the lastlog and faillog databases", action="store_true") |
| parser.add_argument("-m", "--create-home", help="create the user's home directory", action="store_const", const=True) |
| parser.add_argument("-M", "--no-create-home", dest="create_home", help="do not create the user's home directory", action="store_const", const=False) |
| parser.add_argument("-N", "--no-user-group", dest="user_group", help="do not create a group with the same name as the user", action="store_const", const=False) |
| parser.add_argument("-o", "--non-unique", help="allow to create users with duplicate (non-unique UID)", action="store_true") |
| parser.add_argument("-p", "--password", metavar="PASSWORD", help="encrypted password of the new account") |
| parser.add_argument("-R", "--root", metavar="CHROOT_DIR", help="directory to chroot into") |
| parser.add_argument("-r", "--system", help="create a system account", action="store_true") |
| parser.add_argument("-s", "--shell", metavar="SHELL", help="login shell of the new account") |
| parser.add_argument("-u", "--uid", metavar="UID", help="user ID of the new account") |
| parser.add_argument("-U", "--user-group", help="create a group with the same name as the user", action="store_const", const=True) |
| parser.add_argument("LOGIN", help="Login name of the new user") |
| |
| # Return a list of configuration files based on either the default |
| # files/passwd or the contents of USERADD_UID_TABLES |
| # paths are resolved via BBPATH |
| def get_passwd_list(d): |
| str = "" |
| bbpath = d.getVar('BBPATH', True) |
| passwd_tables = d.getVar('USERADD_UID_TABLES', True) |
| if not passwd_tables: |
| passwd_tables = 'files/passwd' |
| for conf_file in passwd_tables.split(): |
| str += " %s" % bb.utils.which(bbpath, conf_file) |
| return str |
| |
| newparams = [] |
| users = None |
| for param in re.split('''[ \t]*;[ \t]*(?=(?:[^'"]|'[^']*'|"[^"]*")*$)''', params): |
| param = param.strip() |
| if not param: |
| continue |
| try: |
| uaargs = parser.parse_args(re.split('''[ \t]*(?=(?:[^'"]|'[^']*'|"[^"]*")*$)''', param)) |
| except: |
| raise bb.build.FuncFailed("%s: Unable to parse arguments for USERADD_PARAM_%s: '%s'" % (d.getVar('PN', True), pkg, param)) |
| |
| # Read all passwd files specified in USERADD_UID_TABLES or files/passwd |
| # Use the standard passwd layout: |
| # username:password:user_id:group_id:comment:home_directory:login_shell |
| # |
| # If a field is left blank, the original value will be used. The 'username' |
| # field is required. |
| # |
| # Note: we ignore the password field, as including even the hashed password |
| # in the useradd command may introduce a security hole. It's assumed that |
| # all new users get the default ('*' which prevents login) until the user is |
| # specifically configured by the system admin. |
| if not users: |
| users = merge_files(get_passwd_list(d), 7) |
| |
| if uaargs.LOGIN not in users: |
| continue |
| |
| field = users[uaargs.LOGIN] |
| |
| if uaargs.uid and field[2] and (uaargs.uid != field[2]): |
| bb.warn("%s: Changing username %s's uid from (%s) to (%s), verify configuration files!" % (d.getVar('PN', True), uaargs.LOGIN, uaargs.uid, field[2])) |
| uaargs.uid = field[2] or uaargs.uid |
| |
| # Determine the possible groupname |
| # Unless the group name (or gid) is specified, we assume that the LOGIN is the groupname |
| # |
| # By default the system has creation of the matching groups enabled |
| # So if the implicit username-group creation is on, then the implicit groupname (LOGIN) |
| # is used, and we disable the user_group option. |
| # |
| user_group = uaargs.user_group is None or uaargs.user_group is True |
| uaargs.groupname = uaargs.LOGIN if user_group else uaargs.gid |
| uaargs.groupid = field[3] or uaargs.gid or uaargs.groupname |
| |
| if uaargs.groupid and uaargs.gid != uaargs.groupid: |
| newgroup = None |
| if not uaargs.groupid.isdigit(): |
| # We don't have a group number, so we have to add a name |
| bb.debug(1, "Adding group %s!" % uaargs.groupid) |
| newgroup = "%s %s" % (' --system' if uaargs.system else '', uaargs.groupid) |
| elif uaargs.groupname and not uaargs.groupname.isdigit(): |
| # We have a group name and a group number to assign it to |
| bb.debug(1, "Adding group %s (gid %s)!" % (uaargs.groupname, uaargs.groupid)) |
| newgroup = "-g %s %s" % (uaargs.groupid, uaargs.groupname) |
| else: |
| # We want to add a group, but we don't know it's name... so we can't add the group... |
| # We have to assume the group has previously been added or we'll fail on the adduser... |
| # Note: specifying the actual gid is very rare in OE, usually the group name is specified. |
| bb.warn("%s: Changing gid for login %s to %s, verify configuration files!" % (d.getVar('PN', True), uaargs.LOGIN, uaargs.groupid)) |
| |
| uaargs.gid = uaargs.groupid |
| uaargs.user_group = None |
| if newgroup: |
| groupadd = d.getVar("GROUPADD_PARAM_%s" % pkg, True) |
| if groupadd: |
| d.setVar("GROUPADD_PARAM_%s" % pkg, "%s; %s" % (groupadd, newgroup)) |
| else: |
| d.setVar("GROUPADD_PARAM_%s" % pkg, newgroup) |
| |
| uaargs.comment = "'%s'" % field[4] if field[4] else uaargs.comment |
| uaargs.home_dir = field[5] or uaargs.home_dir |
| uaargs.shell = field[6] or uaargs.shell |
| |
| # Should be an error if a specific option is set... |
| if d.getVar('USERADD_ERROR_DYNAMIC', True) == '1' and not ((uaargs.uid and uaargs.uid.isdigit()) and uaargs.gid): |
| #bb.error("Skipping recipe %s, package %s which adds username %s does not have a static uid defined." % (d.getVar('PN', True), pkg, uaargs.LOGIN)) |
| raise bb.build.FuncFailed("%s - %s: Username %s does not have a static uid defined." % (d.getVar('PN', True), pkg, uaargs.LOGIN)) |
| |
| # Reconstruct the args... |
| newparam = ['', ' --defaults'][uaargs.defaults] |
| newparam += ['', ' --base-dir %s' % uaargs.base_dir][uaargs.base_dir != None] |
| newparam += ['', ' --comment %s' % uaargs.comment][uaargs.comment != None] |
| newparam += ['', ' --home-dir %s' % uaargs.home_dir][uaargs.home_dir != None] |
| newparam += ['', ' --expiredata %s' % uaargs.expiredate][uaargs.expiredate != None] |
| newparam += ['', ' --inactive %s' % uaargs.inactive][uaargs.inactive != None] |
| newparam += ['', ' --gid %s' % uaargs.gid][uaargs.gid != None] |
| newparam += ['', ' --groups %s' % uaargs.groups][uaargs.groups != None] |
| newparam += ['', ' --skel %s' % uaargs.skel][uaargs.skel != None] |
| newparam += ['', ' --key %s' % uaargs.key][uaargs.key != None] |
| newparam += ['', ' --no-log-init'][uaargs.no_log_init] |
| newparam += ['', ' --create-home'][uaargs.create_home is True] |
| newparam += ['', ' --no-create-home'][uaargs.create_home is False] |
| newparam += ['', ' --no-user-group'][uaargs.user_group is False] |
| newparam += ['', ' --non-unique'][uaargs.non_unique] |
| newparam += ['', ' --password %s' % uaargs.password][uaargs.password != None] |
| newparam += ['', ' --root %s' % uaargs.root][uaargs.root != None] |
| newparam += ['', ' --system'][uaargs.system] |
| newparam += ['', ' --shell %s' % uaargs.shell][uaargs.shell != None] |
| newparam += ['', ' --uid %s' % uaargs.uid][uaargs.uid != None] |
| newparam += ['', ' --user-group'][uaargs.user_group is True] |
| newparam += ' %s' % uaargs.LOGIN |
| |
| newparams.append(newparam) |
| |
| return ";".join(newparams).strip() |
| |
| # We parse and rewrite the groupadd components |
| def rewrite_groupadd(params): |
| # The following comes from --help on groupadd from shadow |
| parser = myArgumentParser(prog='groupadd') |
| parser.add_argument("-f", "--force", help="exit successfully if the group already exists, and cancel -g if the GID is already used", action="store_true") |
| parser.add_argument("-g", "--gid", metavar="GID", help="use GID for the new group") |
| parser.add_argument("-K", "--key", metavar="KEY=VALUE", help="override /etc/login.defs defaults") |
| parser.add_argument("-o", "--non-unique", help="allow to create groups with duplicate (non-unique) GID", action="store_true") |
| parser.add_argument("-p", "--password", metavar="PASSWORD", help="use this encrypted password for the new group") |
| parser.add_argument("-R", "--root", metavar="CHROOT_DIR", help="directory to chroot into") |
| parser.add_argument("-r", "--system", help="create a system account", action="store_true") |
| parser.add_argument("GROUP", help="Group name of the new group") |
| |
| # Return a list of configuration files based on either the default |
| # files/group or the contents of USERADD_GID_TABLES |
| # paths are resolved via BBPATH |
| def get_group_list(d): |
| str = "" |
| bbpath = d.getVar('BBPATH', True) |
| group_tables = d.getVar('USERADD_GID_TABLES', True) |
| if not group_tables: |
| group_tables = 'files/group' |
| for conf_file in group_tables.split(): |
| str += " %s" % bb.utils.which(bbpath, conf_file) |
| return str |
| |
| newparams = [] |
| groups = None |
| for param in re.split('''[ \t]*;[ \t]*(?=(?:[^'"]|'[^']*'|"[^"]*")*$)''', params): |
| param = param.strip() |
| if not param: |
| continue |
| try: |
| # If we're processing multiple lines, we could have left over values here... |
| gaargs = parser.parse_args(re.split('''[ \t]*(?=(?:[^'"]|'[^']*'|"[^"]*")*$)''', param)) |
| except: |
| raise bb.build.FuncFailed("%s: Unable to parse arguments for GROUPADD_PARAM_%s: '%s'" % (d.getVar('PN', True), pkg, param)) |
| |
| # Read all group files specified in USERADD_GID_TABLES or files/group |
| # Use the standard group layout: |
| # groupname:password:group_id:group_members |
| # |
| # If a field is left blank, the original value will be used. The 'groupname' field |
| # is required. |
| # |
| # Note: similar to the passwd file, the 'password' filed is ignored |
| # Note: group_members is ignored, group members must be configured with the GROUPMEMS_PARAM |
| if not groups: |
| groups = merge_files(get_group_list(d), 4) |
| |
| if gaargs.GROUP not in groups: |
| continue |
| |
| field = groups[gaargs.GROUP] |
| |
| if field[2]: |
| if gaargs.gid and (gaargs.gid != field[2]): |
| bb.warn("%s: Changing groupname %s's gid from (%s) to (%s), verify configuration files!" % (d.getVar('PN', True), gaargs.GROUP, gaargs.gid, field[2])) |
| gaargs.gid = field[2] |
| |
| if d.getVar('USERADD_ERROR_DYNAMIC', True) == '1' and not (gaargs.gid and gaargs.gid.isdigit()): |
| #bb.error("Skipping recipe %s, package %s which adds groupname %s does not have a static gid defined." % (d.getVar('PN', True), pkg, gaargs.GROUP)) |
| raise bb.build.FuncFailed("%s - %s: Groupname %s does not have a static gid defined." % (d.getVar('PN', True), pkg, gaargs.GROUP)) |
| |
| # Reconstruct the args... |
| newparam = ['', ' --force'][gaargs.force] |
| newparam += ['', ' --gid %s' % gaargs.gid][gaargs.gid != None] |
| newparam += ['', ' --key %s' % gaargs.key][gaargs.key != None] |
| newparam += ['', ' --non-unique'][gaargs.non_unique] |
| newparam += ['', ' --password %s' % gaargs.password][gaargs.password != None] |
| newparam += ['', ' --root %s' % gaargs.root][gaargs.root != None] |
| newparam += ['', ' --system'][gaargs.system] |
| newparam += ' %s' % gaargs.GROUP |
| |
| newparams.append(newparam) |
| |
| return ";".join(newparams).strip() |
| |
| # Load and process the users and groups, rewriting the adduser/addgroup params |
| useradd_packages = d.getVar('USERADD_PACKAGES', True) |
| |
| for pkg in useradd_packages.split(): |
| # Groupmems doesn't have anything we might want to change, so simply validating |
| # is a bit of a waste -- only process useradd/groupadd |
| useradd_param = d.getVar('USERADD_PARAM_%s' % pkg, True) |
| if useradd_param: |
| #bb.warn("Before: 'USERADD_PARAM_%s' - '%s'" % (pkg, useradd_param)) |
| d.setVar('USERADD_PARAM_%s' % pkg, rewrite_useradd(useradd_param)) |
| #bb.warn("After: 'USERADD_PARAM_%s' - '%s'" % (pkg, d.getVar('USERADD_PARAM_%s' % pkg, True))) |
| |
| groupadd_param = d.getVar('GROUPADD_PARAM_%s' % pkg, True) |
| if groupadd_param: |
| #bb.warn("Before: 'GROUPADD_PARAM_%s' - '%s'" % (pkg, groupadd_param)) |
| d.setVar('GROUPADD_PARAM_%s' % pkg, rewrite_groupadd(groupadd_param)) |
| #bb.warn("After: 'GROUPADD_PARAM_%s' - '%s'" % (pkg, d.getVar('GROUPADD_PARAM_%s' % pkg, True))) |
| |
| |
| |
| python __anonymous() { |
| if not bb.data.inherits_class('nativesdk', d) \ |
| and not bb.data.inherits_class('native', d): |
| try: |
| update_useradd_static_config(d) |
| except bb.build.FuncFailed as f: |
| bb.debug(1, "Skipping recipe %s: %s" % (d.getVar('PN', True), f)) |
| raise bb.parse.SkipPackage(f) |
| } |