src/shared/userdb.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <sys/socket.h>
#include <sys/un.h>

#include "group-record.h"
#include "user-record.h"

/* Inquire local services for user/group records */

typedef struct UserDBIterator UserDBIterator;

UserDBIterator *userdb_iterator_free(UserDBIterator *iterator);
DEFINE_TRIVIAL_CLEANUP_FUNC(UserDBIterator*, userdb_iterator_free);

typedef enum UserDBFlags {
        USERDB_AVOID_NSS          = 1 << 0,  /* don't do client-side nor server-side NSS */
        USERDB_AVOID_SHADOW       = 1 << 1,  /* don't do client-side shadow calls (server side might happen though) */
        USERDB_AVOID_DYNAMIC_USER = 1 << 2,  /* exclude looking up in io.systemd.DynamicUser */
        USERDB_AVOID_MULTIPLEXER  = 1 << 3,  /* exclude looking up via io.systemd.Multiplexer */
        USERDB_DONT_SYNTHESIZE    = 1 << 4,  /* don't synthesize root/nobody */
} UserDBFlags;

int userdb_by_name(const char *name, UserDBFlags flags, UserRecord **ret);
int userdb_by_uid(uid_t uid, UserDBFlags flags, UserRecord **ret);
int userdb_all(UserDBFlags flags, UserDBIterator **ret);
int userdb_iterator_get(UserDBIterator *iterator, UserRecord **ret);

int groupdb_by_name(const char *name, UserDBFlags flags, GroupRecord **ret);
int groupdb_by_gid(gid_t gid, UserDBFlags flags, GroupRecord **ret);
int groupdb_all(UserDBFlags flags, UserDBIterator **ret);
int groupdb_iterator_get(UserDBIterator *iterator, GroupRecord **ret);

int membershipdb_by_user(const char *name, UserDBFlags flags, UserDBIterator **ret);
int membershipdb_by_group(const char *name, UserDBFlags flags, UserDBIterator **ret);
int membershipdb_all(UserDBFlags flags, UserDBIterator **ret);
int membershipdb_iterator_get(UserDBIterator *iterator, char **user, char **group);
int membershipdb_by_group_strv(const char *name, UserDBFlags flags, char ***ret);

int userdb_block_nss_systemd(int b);