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shared: add internal API for querying JSON user records via varlink

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This new API can be used in place of NSS by our own internal code if
more than the classic UNIX records are needed.
This commit is contained in:
Lennart Poettering 2019-08-07 15:26:32 +02:00
parent 9b2d907877
commit ec8e4a0ef1
3 changed files with 1390 additions and 0 deletions
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2
src/shared/meson.build
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@ -197,6 +197,8 @@ shared_sources = files('''
user-record-nss.h
user-record.c
user-record.h
userdb.c
userdb.h
utmp-wtmp.h
varlink.c
varlink.h

1347
src/shared/userdb.c Normal file
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File diff suppressed because it is too large Load Diff

41
src/shared/userdb.h Normal file
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@ -0,0 +1,41 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#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_DYNAMIC_USER = 1 << 1, /* exclude looking up in io.systemd.DynamicUser */
USERDB_AVOID_MULTIPLEXER = 1 << 2, /* exclude looking up via io.systemd.Multiplexer */
USERDB_DONT_SYNTHESIZE = 1 << 3, /* 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_nss_compat_is_enabled(void);
int userdb_nss_compat_disable(void);