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/*
Unix SMB/CIFS implementation.
security descriptor utility functions
Copyright (C) Andrew Tridgell 2004
Copyright (C) Stefan Metzmacher 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/>.
*/
#include "includes.h"
#include "libcli/security/security.h"
#include "auth/session.h"
/*
return a blank security token
*/
struct security_token *security_token_initialise(TALLOC_CTX *mem_ctx)
{
struct security_token *st;
st = talloc(mem_ctx, struct security_token);
if (!st) {
return NULL;
}
st->user_sid = NULL;
st->group_sid = NULL;
st->num_sids = 0;
st->sids = NULL;
st->privilege_mask = 0;
return st;
}
/****************************************************************************
prints a struct security_token to debug output.
****************************************************************************/
void security_token_debug(int dbg_lev, const struct security_token *token)
{
TALLOC_CTX *mem_ctx;
int i;
if (!token) {
DEBUG(dbg_lev, ("Security token: (NULL)\n"));
return;
}
mem_ctx = talloc_init("security_token_debug()");
if (!mem_ctx) {
return;
}
DEBUG(dbg_lev, ("Security token of user %s\n",
dom_sid_string(mem_ctx, token->user_sid) ));
DEBUGADD(dbg_lev, (" SIDs (%lu):\n",
(unsigned long)token->num_sids));
for (i = 0; i < token->num_sids; i++) {
DEBUGADD(dbg_lev, (" SID[%3lu]: %s\n", (unsigned long)i,
dom_sid_string(mem_ctx, token->sids[i])));
}
security_token_debug_privileges(dbg_lev, token);
talloc_free(mem_ctx);
}
/* These really should be cheaper... */
bool security_token_is_sid(const struct security_token *token, const struct dom_sid *sid)
{
if (dom_sid_equal(token->user_sid, sid)) {
return true;
}
return false;
}
bool security_token_is_sid_string(const struct security_token *token, const char *sid_string)
{
bool ret;
struct dom_sid *sid = dom_sid_parse_talloc(NULL, sid_string);
if (!sid) return false;
ret = security_token_is_sid(token, sid);
talloc_free(sid);
return ret;
}
bool security_token_is_system(const struct security_token *token)
{
return security_token_is_sid_string(token, SID_NT_SYSTEM);
}
bool security_token_is_anonymous(const struct security_token *token)
{
return security_token_is_sid_string(token, SID_NT_ANONYMOUS);
}
bool security_token_has_sid(const struct security_token *token, const struct dom_sid *sid)
{
int i;
for (i = 0; i < token->num_sids; i++) {
if (dom_sid_equal(token->sids[i], sid)) {
return true;
}
}
return false;
}
bool security_token_has_sid_string(const struct security_token *token, const char *sid_string)
{
bool ret;
struct dom_sid *sid = dom_sid_parse_talloc(NULL, sid_string);
if (!sid) return false;
ret = security_token_has_sid(token, sid);
talloc_free(sid);
return ret;
}
bool security_token_has_builtin_administrators(const struct security_token *token)
{
return security_token_has_sid_string(token, SID_BUILTIN_ADMINISTRATORS);
}
bool security_token_has_nt_authenticated_users(const struct security_token *token)
{
return security_token_has_sid_string(token, SID_NT_AUTHENTICATED_USERS);
}
bool security_token_has_enterprise_dcs(const struct security_token *token)
{
return security_token_has_sid_string(token, SID_NT_ENTERPRISE_DCS);
}
enum security_user_level security_session_user_level(struct auth_session_info *session_info,
const struct dom_sid *domain_sid)
{
if (!session_info) {
return SECURITY_ANONYMOUS;
}
if (security_token_is_system(session_info->security_token)) {
return SECURITY_SYSTEM;
}
if (security_token_is_anonymous(session_info->security_token)) {
return SECURITY_ANONYMOUS;
}
if (security_token_has_builtin_administrators(session_info->security_token)) {
return SECURITY_ADMINISTRATOR;
}
if (domain_sid &&
dom_sid_in_domain(domain_sid, session_info->security_token->user_sid)) {
uint32_t rid;
NTSTATUS status = dom_sid_split_rid(NULL, session_info->security_token->user_sid,
NULL, &rid);
if (NT_STATUS_IS_OK(status) && rid == DOMAIN_RID_ENTERPRISE_READONLY_DCS) {
return SECURITY_RO_DOMAIN_CONTROLLER;
}
}
if (security_token_has_enterprise_dcs(session_info->security_token)) {
return SECURITY_DOMAIN_CONTROLLER;
}
if (security_token_has_nt_authenticated_users(session_info->security_token)) {
return SECURITY_USER;
}
return SECURITY_ANONYMOUS;
}
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