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samba-mirror/source3/groupdb/builtindb.c

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/*
Unix SMB/Netbios implementation.
Version 1.9.
Pasesword and authentication handling
Copyright (C) Jeremy Allison 1996-1998
Copyright (C) Luke Kenneth Caseson Leighton 1996-1998
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 2 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, write to the Free Software
Foundation, Inc., 675 Mases Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "nterr.h"
extern int DEBUGLEVEL;
extern fstring global_sam_name;
extern DOM_SID global_sam_sid;
/*
* NOTE. All these functions are abstracted into a structure
* that points to the correct function for the selected database. JRA.
*/
static struct aliasdb_ops *bidb_ops = NULL;
/***************************************************************
Initialise the builtin db operations.
***************************************************************/
BOOL initialise_builtin_db(void)
{
if (bidb_ops)
{
return True;
}
#ifdef WITH_NISPLUS
bidb_ops = nisplus_initialise_builtin_db();
#elif defined(WITH_LDAP)
bidb_ops = ldap_initialise_builtin_db();
#elif defined(USE_SMBUNIX_DB)
bidb_ops = unix_initialise_builtin_db();
#endif
return (bidb_ops != NULL);
}
/*
* Functions that return/manipulate a LOCAL_GRP.
*/
/************************************************************************
Utility function to search builtin database by gid: the LOCAL_GRP
structure does not have a gid member, so we have to convert here
from gid to builtin rid.
*************************************************************************/
LOCAL_GRP *iterate_getbuiltingid(gid_t gid, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
DOM_NAME_MAP gmep;
uint32 rid;
if (!lookupsmbgrpgid(gid, &gmep))
{
DEBUG(0,("iterate_getbuiltingid: gid %d does not map to one of our Domain's Aliases\n", gid));
return NULL;
}
if (gmep.type != SID_NAME_ALIAS )
{
DEBUG(0,("iterate_getbuiltingid: gid %d does not map to one of our Domain's Aliases\n", gid));
return NULL;
}
sid_split_rid(&gmep.sid, &rid);
if (!sid_equal(&gmep.sid, &global_sam_sid))
{
DEBUG(0,("iterate_getbuiltingid: gid %d does not map into our Domain SID\n", gid));
return NULL;
}
return iterate_getbuiltinrid(rid, mem, num_mem);
}
/************************************************************************
Utility function to search builtin database by rid. use this if your database
does not have search facilities.
*************************************************************************/
LOCAL_GRP *iterate_getbuiltinrid(uint32 rid, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
LOCAL_GRP *blt = NULL;
void *fp = NULL;
DEBUG(10, ("search by rid: 0x%x\n", rid));
/* Open the builtin database file - not for update. */
fp = startbuiltinent(False);
if (fp == NULL)
{
DEBUG(0, ("unable to open builtin database.\n"));
return NULL;
}
while ((blt = getbuiltinent(fp, mem, num_mem)) != NULL && blt->rid != rid)
{
DEBUG(10,("iterate: %s 0x%x", blt->name, blt->rid));
}
if (blt != NULL)
{
DEBUG(10, ("found builtin %s by rid: 0x%x\n", blt->name, rid));
}
endbuiltinent(fp);
return blt;
}
/************************************************************************
Utility function to search builtin database by name. use this if your database
does not have search facilities.
*************************************************************************/
LOCAL_GRP *iterate_getbuiltinntnam(const char *name, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
LOCAL_GRP *blt = NULL;
void *fp = NULL;
DEBUG(10, ("search by name: %s\n", name));
/* Open the builtin database file - not for update. */
fp = startbuiltinent(False);
if (fp == NULL)
{
DEBUG(0, ("unable to open builtin database.\n"));
return NULL;
}
while ((blt = getbuiltinent(fp, mem, num_mem)) != NULL && !strequal(blt->name, name))
{
}
if (blt != NULL)
{
DEBUG(10, ("found by name: %s\n", name));
}
endbuiltinent(fp);
return blt;
}
/*************************************************************************
Routine to return the next entry in the smbdomainbuiltin list.
*************************************************************************/
BOOL add_domain_builtin(LOCAL_GRP **blts, int *num_blts, LOCAL_GRP *blt)
{
if (blts == NULL || num_blts == NULL || blt == NULL)
{
return False;
}
(*blts) = Realloc((*blts), ((*num_blts)+1) * sizeof(LOCAL_GRP));
if ((*blts) == NULL)
{
return False;
}
DEBUG(10,("adding builtin %s(%s)\n", blt->name, blt->comment));
fstrcpy((*blts)[(*num_blts)].name , blt->name);
fstrcpy((*blts)[(*num_blts)].comment, blt->comment);
(*blts)[(*num_blts)].rid = blt->rid;
(*num_blts)++;
return True;
}
/*************************************************************************
checks to see if a user is a member of a domain builtin
*************************************************************************/
static BOOL user_is_member(const char *user_name, LOCAL_GRP_MEMBER *mem, int num_mem)
{
int i;
pstring name;
slprintf(name, sizeof(name)-1, "%s\\%s", global_sam_name, user_name);
for (i = 0; i < num_mem; i++)
{
DEBUG(10,("searching against user %s...\n", mem[i].name));
if (strequal(mem[i].name, name))
{
DEBUG(10,("searching for user %s: found\n", name));
return True;
}
}
DEBUG(10,("searching for user %s: not found\n", name));
return False;
}
/*************************************************************************
gets an array of builtin aliases that a user is in. use this if your database
does not have search facilities
*************************************************************************/
BOOL iterate_getuserbuiltinntnam(const char *user_name, LOCAL_GRP **blts, int *num_blts)
{
LOCAL_GRP *blt = NULL;
LOCAL_GRP_MEMBER *mem = NULL;
int num_mem = 0;
void *fp = NULL;
DEBUG(10, ("search for userbuiltin by name: %s\n", user_name));
if (user_name == NULL || blts == NULL || num_blts == NULL)
{
return False;
}
(*blts) = NULL;
(*num_blts) = 0;
/* Open the builtin database file - not for update. */
fp = startbuiltinent(False);
if (fp == NULL)
{
DEBUG(0, ("unable to open builtin database.\n"));
return False;
}
/* iterate through all builtin aliases. search members for required user */
while ((blt = getbuiltinent(fp, &mem, &num_mem)) != NULL)
{
DEBUG(5,("builtin name %s members: %d\n", blt->name, num_mem));
if (num_mem != 0 && mem != NULL)
{
BOOL ret = True;
if (user_is_member(user_name, mem, num_mem))
{
ret = add_domain_builtin(blts, num_blts, blt);
}
free(mem);
mem = NULL;
num_mem = 0;
if (!ret)
{
(*num_blts) = 0;
break;
}
}
}
if ((*num_blts) != 0)
{
DEBUG(10, ("found %d user builtin aliases:\n", (*num_blts)));
}
endbuiltinent(fp);
return True;
}
/*************************************************************************
gets an array of builtin aliases that a user is in. use this if your database
does not have search facilities
*************************************************************************/
BOOL enumdombuiltins(LOCAL_GRP **blts, int *num_blts)
{
LOCAL_GRP *blt = NULL;
void *fp = NULL;
DEBUG(10, ("enum user builtin aliases\n"));
if (blts == NULL || num_blts == NULL)
{
return False;
}
(*blts) = NULL;
(*num_blts) = 0;
/* Open the builtin database file - not for update. */
fp = startbuiltinent(False);
if (fp == NULL)
{
DEBUG(0, ("unable to open builtin database.\n"));
return False;
}
/* iterate through all builtin aliases. */
while ((blt = getbuiltinent(fp, NULL, NULL)) != NULL)
{
if (!add_domain_builtin(blts, num_blts, blt))
{
DEBUG(0,("unable to add builtin while enumerating\n"));
return False;
}
}
if ((*num_blts) != 0)
{
DEBUG(10, ("found %d user builtin aliases:\n", (*num_blts)));
}
endbuiltinent(fp);
return True;
}
/***************************************************************
Start to enumerate the builtin database list. Returns a void pointer
to ensure no modification outside this module.
****************************************************************/
void *startbuiltinent(BOOL update)
{
return bidb_ops->startaliasent(update);
}
/***************************************************************
End enumeration of the builtin database list.
****************************************************************/
void endbuiltinent(void *vp)
{
bidb_ops->endaliasent(vp);
}
/*************************************************************************
Routine to return the next entry in the builtin database list.
*************************************************************************/
LOCAL_GRP *getbuiltinent(void *vp, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
return bidb_ops->getaliasent(vp, mem, num_mem);
}
/************************************************************************
Routine to add an entry to the builtin database file.
*************************************************************************/
BOOL add_builtin_entry(LOCAL_GRP *newblt)
{
return bidb_ops->add_alias_entry(newblt);
}
/************************************************************************
Routine to search the builtin database file for an entry matching the builtinname.
and then replace the entry.
************************************************************************/
BOOL mod_builtin_entry(LOCAL_GRP* blt)
{
return bidb_ops->mod_alias_entry(blt);
}
/************************************************************************
Routine to add a member to an entry in the builtin database file.
*************************************************************************/
BOOL add_builtin_member(uint32 rid, DOM_SID *member_sid)
{
return bidb_ops->add_alias_member(rid, member_sid);
}
/************************************************************************
Routine to delete a member from an entry in the builtindatabase file.
*************************************************************************/
BOOL del_builtin_member(uint32 rid, DOM_SID *member_sid)
{
return bidb_ops->del_alias_member(rid, member_sid);
}
/************************************************************************
Routine to search builtin database by name.
*************************************************************************/
LOCAL_GRP *getbuiltinntnam(const char *name, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
return bidb_ops->getaliasntnam(name, mem, num_mem);
}
/************************************************************************
Routine to search builtin database by builtin rid.
*************************************************************************/
LOCAL_GRP *getbuiltinrid(uint32 builtin_rid, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
return bidb_ops->getaliasrid(builtin_rid, mem, num_mem);
}
/************************************************************************
Routine to search builtin database by gid.
*************************************************************************/
LOCAL_GRP *getbuiltingid(gid_t gid, LOCAL_GRP_MEMBER **mem, int *num_mem)
{
return bidb_ops->getaliasgid(gid, mem, num_mem);
}
/*************************************************************************
gets an array of builtin aliases that a user is in.
*************************************************************************/
BOOL getuserbuiltinntnam(const char *user_name, LOCAL_GRP **blt, int *num_blts)
{
return bidb_ops->getuseraliasntnam(user_name, blt, num_blts);
}
/*************************************************************
initialises a LOCAL_GRP.
**************************************************************/
void bidb_init_blt(LOCAL_GRP *blt)
{
if (blt == NULL) return;
ZERO_STRUCTP(blt);
}
/*************************************************************
turns an builtin entry into a string.
**************************************************************/
BOOL make_builtin_line(char *p, int max_len,
LOCAL_GRP *blt,
LOCAL_GRP_MEMBER **mem, int *num_mem)
{
int i;
int len;
len = slprintf(p, max_len-1, "%s:%s:%d:", blt->name, blt->comment, blt->rid);
if (len == -1)
{
DEBUG(0,("make_builtin_line: cannot create entry\n"));
return False;
}
p += len;
max_len -= len;
if (mem == NULL || num_mem == NULL)
{
return True;
}
for (i = 0; i < (*num_mem); i++)
{
len = strlen((*mem)[i].name);
p = safe_strcpy(p, (*mem)[i].name, max_len);
if (p == NULL)
{
DEBUG(0, ("make_builtin_line: out of space for builtin aliases!\n"));
return False;
}
max_len -= len;
if (i != (*num_mem)-1)
{
*p = ',';
p++;
max_len--;
}
}
return True;
}