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/*
* idmap_rid: static map between Active Directory/NT RIDs and RFC 2307 accounts
* Copyright (C) Guenther Deschner, 2004
* Copyright (C) Sumit Bose, 2004
*
* 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/>.
*
*/
#include "includes.h"
#include "winbindd.h"
#include "idmap.h"
#include "../libcli/security/dom_sid.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_IDMAP
struct idmap_rid_context {
uint32_t base_rid;
};
/******************************************************************************
compat params can't be used because of the completely different way
we support multiple domains in the new idmap
*****************************************************************************/
static NTSTATUS idmap_rid_initialize(struct idmap_domain *dom)
{
struct idmap_rid_context *ctx;
ctx = talloc_zero(dom, struct idmap_rid_context);
if (ctx == NULL) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
ctx->base_rid = idmap_config_int(dom->name, "base_rid", 0);
dom->private_data = ctx;
return NT_STATUS_OK;
}
static NTSTATUS idmap_rid_id_to_sid(struct idmap_domain *dom, struct id_map *map)
{
struct idmap_rid_context *ctx;
ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
/* apply filters before checking */
if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
map->xid.id, dom->low_id, dom->high_id));
return NT_STATUS_NONE_MAPPED;
}
if (is_null_sid(&dom->dom_sid)) {
DBG_INFO("idmap domain '%s' without SID\n", dom->name);
return NT_STATUS_NONE_MAPPED;
}
sid_compose(map->sid, &dom->dom_sid,
map->xid.id - dom->low_id + ctx->base_rid);
map->status = ID_MAPPED;
map->xid.type = ID_TYPE_BOTH;
return NT_STATUS_OK;
}
/**********************************
Single sid to id lookup function.
**********************************/
static NTSTATUS idmap_rid_sid_to_id(struct idmap_domain *dom, struct id_map *map)
{
uint32_t rid;
struct idmap_rid_context *ctx;
ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
sid_peek_rid(map->sid, &rid);
map->xid.id = rid - ctx->base_rid + dom->low_id;
map->xid.type = ID_TYPE_BOTH;
/* apply filters before returning result */
if (!idmap_unix_id_is_in_range(map->xid.id, dom)) {
DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
map->xid.id, dom->low_id, dom->high_id));
map->status = ID_UNMAPPED;
return NT_STATUS_NONE_MAPPED;
}
map->status = ID_MAPPED;
return NT_STATUS_OK;
}
/**********************************
lookup a set of unix ids.
**********************************/
static NTSTATUS idmap_rid_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
{
NTSTATUS ret;
int i;
/* initialize the status to avoid suprise */
for (i = 0; ids[i]; i++) {
ids[i]->status = ID_UNKNOWN;
}
for (i = 0; ids[i]; i++) {
ret = idmap_rid_id_to_sid(dom, ids[i]);
if (( ! NT_STATUS_IS_OK(ret)) &&
( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
/* some fatal error occurred, log it */
DBG_NOTICE("Unexpected error resolving an ID "
"(%d): %s\n", ids[i]->xid.id,
nt_errstr(ret));
}
}
return NT_STATUS_OK;
}
/**********************************
lookup a set of sids.
**********************************/
static NTSTATUS idmap_rid_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
{
NTSTATUS ret;
int i;
/* initialize the status to avoid suprise */
for (i = 0; ids[i]; i++) {
ids[i]->status = ID_UNKNOWN;
}
for (i = 0; ids[i]; i++) {
ret = idmap_rid_sid_to_id(dom, ids[i]);
if (( ! NT_STATUS_IS_OK(ret)) &&
( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
struct dom_sid_buf buf;
/* some fatal error occurred, log it */
DEBUG(3, ("Unexpected error resolving a SID (%s)\n",
dom_sid_str_buf(ids[i]->sid, &buf)));
}
}
return NT_STATUS_OK;
}
static const struct idmap_methods rid_methods = {
.init = idmap_rid_initialize,
.unixids_to_sids = idmap_rid_unixids_to_sids,
.sids_to_unixids = idmap_rid_sids_to_unixids,
};
static_decl_idmap;
NTSTATUS idmap_rid_init(TALLOC_CTX *ctx)
{
return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "rid", &rid_methods);
}
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