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/*
Unix SMB/CIFS implementation.
manipulate privilege records in samdb
Copyright (C) Andrew Tridgell 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 "libcli/ldap/ldap_ndr.h"
#include "dsdb/samdb/samdb.h"
#include "auth/auth.h"
#include "libcli/security/security.h"
#include "../lib/util/util_ldb.h"
#include "param/param.h"
#include "ldb_wrap.h"
/* connect to the privilege database */
struct ldb_context *privilege_connect(TALLOC_CTX *mem_ctx,
struct loadparm_context *lp_ctx)
{
return ldb_wrap_connect(mem_ctx, NULL, lp_ctx, "privilege.ldb",
NULL, NULL, 0);
}
/*
add privilege bits for one sid to a security_token
*/
static NTSTATUS samdb_privilege_setup_sid(struct ldb_context *pdb, TALLOC_CTX *mem_ctx,
struct security_token *token,
const struct dom_sid *sid)
{
const char * const attrs[] = { "privilege", NULL };
struct ldb_message **res = NULL;
struct ldb_message_element *el;
unsigned int i;
int ret;
char *sidstr;
sidstr = ldap_encode_ndr_dom_sid(mem_ctx, sid);
NT_STATUS_HAVE_NO_MEMORY(sidstr);
ret = gendb_search(pdb, mem_ctx, NULL, &res, attrs, "objectSid=%s", sidstr);
talloc_free(sidstr);
if (ret != 1) {
/* not an error to not match */
return NT_STATUS_OK;
}
el = ldb_msg_find_element(res[0], "privilege");
if (el == NULL) {
return NT_STATUS_OK;
}
for (i=0;i<el->num_values;i++) {
const char *priv_str = (const char *)el->values[i].data;
enum sec_privilege privilege = sec_privilege_id(priv_str);
if (privilege == SEC_PRIV_INVALID) {
uint32_t right_bit = sec_right_bit(priv_str);
security_token_set_right_bit(token, right_bit);
if (right_bit == 0) {
DEBUG(1,("Unknown privilege '%s' in samdb\n",
priv_str));
}
continue;
}
security_token_set_privilege(token, privilege);
}
return NT_STATUS_OK;
}
/*
setup the privilege mask for this security token based on our
local SAM
*/
NTSTATUS samdb_privilege_setup(struct loadparm_context *lp_ctx, struct security_token *token)
{
struct ldb_context *pdb;
TALLOC_CTX *mem_ctx;
unsigned int i;
NTSTATUS status;
/* Shortcuts to prevent recursion and avoid lookups */
if (token->sids == NULL) {
token->privilege_mask = 0;
return NT_STATUS_OK;
}
if (security_token_is_system(token)) {
token->privilege_mask = ~0;
return NT_STATUS_OK;
}
if (security_token_is_anonymous(token)) {
token->privilege_mask = 0;
return NT_STATUS_OK;
}
mem_ctx = talloc_new(token);
pdb = privilege_connect(mem_ctx, lp_ctx);
if (pdb == NULL) {
talloc_free(mem_ctx);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
token->privilege_mask = 0;
for (i=0;i<token->num_sids;i++) {
status = samdb_privilege_setup_sid(pdb, mem_ctx,
token, &token->sids[i]);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(mem_ctx);
return status;
}
}
talloc_free(mem_ctx);
return NT_STATUS_OK;
}
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