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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 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 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "librpc/gen_ndr/security.h"
#include "lib/ldb/include/ldb.h"
/*
add privilege bits for one sid to a security_token
*/
static NTSTATUS samdb_privilege_setup_sid(void *samctx, TALLOC_CTX *mem_ctx,
const struct dom_sid *sid,
uint64_t *mask)
{
const char * const attrs[] = { "privilege", NULL };
struct ldb_message **res = NULL;
struct ldb_message_element *el;
int ret, i;
char *sidstr;
*mask = 0;
sidstr = ldap_encode_ndr_dom_sid(mem_ctx, sid);
NT_STATUS_HAVE_NO_MEMORY(sidstr);
ret = gendb_search(samctx, 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;
int privilege = sec_privilege_id(priv_str);
if (privilege == -1) {
DEBUG(1,("Unknown privilege '%s' in samdb\n",
priv_str));
continue;
}
*mask |= sec_privilege_mask(privilege);
}
return NT_STATUS_OK;
}
/*
setup the privilege mask for this security token based on our
local SAM
*/
NTSTATUS samdb_privilege_setup(struct security_token *token)
{
void *samctx;
TALLOC_CTX *mem_ctx;
int i;
NTSTATUS status;
/* Shortcuts to prevent recursion and avoid lookups */
if (is_system_token(token)) {
token->privilege_mask = ~0;
return NT_STATUS_OK;
}
if (is_anonymous_token(token)) {
token->privilege_mask = 0;
return NT_STATUS_OK;
}
mem_ctx = talloc_new(token);
samctx = samdb_connect(mem_ctx, system_session(mem_ctx));
if (samctx == NULL) {
talloc_free(mem_ctx);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
token->privilege_mask = 0;
for (i=0;i<token->num_sids;i++) {
uint64_t mask;
status = samdb_privilege_setup_sid(samctx, mem_ctx,
token->sids[i], &mask);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(mem_ctx);
return status;
}
token->privilege_mask |= mask;
}
talloc_free(mem_ctx);
return NT_STATUS_OK;
}
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