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samba-mirror/source3/passdb/lookup_sid.h
Volker Lendecke 92f27ebb14 passdb: Introduce xid_to_sid
This explicitly avoids the legacy_[ug]id_to_sid calls, which create
long-term cache entries to S-1-22-x-y if anthing fails. We can't do
this, because this will turn temporary winbind communication failures
into long-term problems: A short hickup in winbind_uid_to_sid will
create a mapping to S-1-22-1-uid for a week. It should be up to the
lower layers to do the caching.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13813
2019-02-28 12:57:24 +00:00

97 lines
3.3 KiB
C

/*
Unix SMB/CIFS implementation.
uid/user handling
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Gerald (Jerry) Carter 2003
Copyright (C) Volker Lendecke 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PASSDB_LOOKUP_SID_H_
#define _PASSDB_LOOKUP_SID_H_
#include "../librpc/gen_ndr/lsa.h"
struct passwd;
struct unixid;
#define LOOKUP_NAME_NONE 0x00000000
#define LOOKUP_NAME_ISOLATED 0x00000001 /* Look up unqualified names */
#define LOOKUP_NAME_REMOTE 0x00000002 /* Ask others */
#define LOOKUP_NAME_GROUP 0x00000004 /* This is a NASTY hack for
valid users = @foo where foo also
exists in as user. */
#define LOOKUP_NAME_NO_NSS 0x00000008 /* no NSS calls to avoid
winbind recursions */
#define LOOKUP_NAME_BUILTIN 0x00000010 /* builtin names */
#define LOOKUP_NAME_WKN 0x00000020 /* well known names */
#define LOOKUP_NAME_DOMAIN 0x00000040 /* only lookup own domain */
#define LOOKUP_NAME_LOCAL (LOOKUP_NAME_ISOLATED\
|LOOKUP_NAME_BUILTIN\
|LOOKUP_NAME_WKN\
|LOOKUP_NAME_DOMAIN)
#define LOOKUP_NAME_ALL (LOOKUP_NAME_ISOLATED\
|LOOKUP_NAME_REMOTE\
|LOOKUP_NAME_BUILTIN\
|LOOKUP_NAME_WKN\
|LOOKUP_NAME_DOMAIN)
struct lsa_dom_info {
bool valid;
struct dom_sid sid;
const char *name;
int num_idxs;
int *idxs;
};
struct lsa_name_info {
uint32_t rid;
enum lsa_SidType type;
const char *name;
int dom_idx;
};
/* The following definitions come from passdb/lookup_sid.c */
bool lookup_name(TALLOC_CTX *mem_ctx,
const char *full_name, int flags,
const char **ret_domain, const char **ret_name,
struct dom_sid *ret_sid, enum lsa_SidType *ret_type);
bool lookup_name_smbconf(TALLOC_CTX *mem_ctx,
const char *full_name, int flags,
const char **ret_domain, const char **ret_name,
struct dom_sid *ret_sid, enum lsa_SidType *ret_type);
NTSTATUS lookup_sids(TALLOC_CTX *mem_ctx, int num_sids,
const struct dom_sid **sids, int level,
struct lsa_dom_info **ret_domains,
struct lsa_name_info **ret_names);
bool lookup_sid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
const char **ret_domain, const char **ret_name,
enum lsa_SidType *ret_type);
void uid_to_sid(struct dom_sid *psid, uid_t uid);
void gid_to_sid(struct dom_sid *psid, gid_t gid);
void xid_to_sid(struct dom_sid *psid, const struct unixid *xid);
bool sid_to_uid(const struct dom_sid *psid, uid_t *puid);
bool sid_to_gid(const struct dom_sid *psid, gid_t *pgid);
bool sids_to_unixids(const struct dom_sid *sids, uint32_t num_sids,
struct unixid *ids);
NTSTATUS get_primary_group_sid(TALLOC_CTX *mem_ctx,
const char *username,
struct passwd **_pwd,
struct dom_sid **_group_sid);
#endif /* _PASSDB_LOOKUP_SID_H_ */