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/*
* Unix SMB/CIFS implementation.
*
* Eventlog RPC server keys initialization
*
* Copyright (c) 2005 Marcin Krzysztof Porwit
* Copyright (c) 2005 Brian Moran
* Copyright (c) 2005 Gerald (Jerry) Carter
* Copyright (c) 2011 Andreas Schneider <asn@samba.org>
*
* 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 "../librpc/gen_ndr/ndr_winreg_c.h"
#include "rpc_client/cli_winreg_int.h"
#include "rpc_client/cli_winreg.h"
#include "rpc_server/eventlog/srv_eventlog_reg.h"
#include "auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_REGISTRY
#define TOP_LEVEL_EVENTLOG_KEY "SYSTEM\\CurrentControlSet\\Services\\Eventlog"
bool eventlog_init_winreg(struct messaging_context *msg_ctx)
{
struct dcerpc_binding_handle *h = NULL;
uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
struct policy_handle hive_hnd, key_hnd;
uint32_t uiMaxSize = 0x00080000;
uint32_t uiRetention = 0x93A80;
const char **elogs = lp_eventlog_list();
const char **subkeys = NULL;
uint32_t num_subkeys = 0;
uint32_t i;
char *key = NULL;
NTSTATUS status;
WERROR result = WERR_OK;
bool ok = false;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_stackframe();
if (tmp_ctx == NULL) {
return false;
}
DEBUG(3, ("Initialise the eventlog registry keys if needed.\n"));
key = talloc_strdup(tmp_ctx, TOP_LEVEL_EVENTLOG_KEY);
status = dcerpc_winreg_int_hklm_openkey(tmp_ctx,
get_session_info_system(),
msg_ctx,
&h,
key,
false,
access_mask,
&hive_hnd,
&key_hnd,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("eventlog_init_winreg: Could not open %s - %s\n",
key, nt_errstr(status)));
goto done;
}
if (!W_ERROR_IS_OK(result)) {
DEBUG(0, ("eventlog_init_winreg: Could not open %s - %s\n",
key, win_errstr(result)));
goto done;
}
status = dcerpc_winreg_enum_keys(tmp_ctx,
h,
&key_hnd,
&num_subkeys,
&subkeys,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("eventlog_init_winreg: Could enum keys at %s - %s\n",
key, nt_errstr(status)));
goto done;
}
if (!W_ERROR_IS_OK(result)) {
DEBUG(0, ("eventlog_init_winreg: Could enum keys at %s - %s\n",
key, win_errstr(result)));
goto done;
}
if (is_valid_policy_hnd(&key_hnd)) {
dcerpc_winreg_CloseKey(h, tmp_ctx, &key_hnd, &result);
}
/* create subkeys if they don't exist */
while (elogs && *elogs) {
enum winreg_CreateAction action = REG_ACTION_NONE;
char *evt_tdb = NULL;
struct winreg_String wkey;
struct winreg_String wkeyclass;
bool skip = false;
for (i = 0; i < num_subkeys; i++) {
if (strequal(subkeys[i], *elogs)) {
skip = true;
}
}
if (skip) {
elogs++;
continue;
}
ZERO_STRUCT(key_hnd);
ZERO_STRUCT(wkey);
wkey.name = talloc_asprintf(tmp_ctx, "%s\\%s", key, *elogs);
if (wkey.name == NULL) {
result = WERR_NOMEM;
goto done;
}
ZERO_STRUCT(wkeyclass);
wkeyclass.name = "";
status = dcerpc_winreg_CreateKey(h,
tmp_ctx,
&hive_hnd,
wkey,
wkeyclass,
0,
access_mask,
NULL,
&key_hnd,
&action,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("eventlog_init_winreg_keys: Could not create key %s: %s\n",
wkey.name, nt_errstr(status)));
goto done;
}
if (!W_ERROR_IS_OK(result)) {
DEBUG(0, ("eventlog_init_winreg_keys: Could not create key %s: %s\n",
wkey.name, win_errstr(result)));
goto done;
}
status = dcerpc_winreg_set_dword(tmp_ctx,
h,
&key_hnd,
"MaxSize",
uiMaxSize,
&result);
status = dcerpc_winreg_set_dword(tmp_ctx,
h,
&key_hnd,
"Retention",
uiRetention,
&result);
status = dcerpc_winreg_set_sz(tmp_ctx,
h,
&key_hnd,
"PrimaryModule",
*elogs,
&result);
evt_tdb = talloc_asprintf(tmp_ctx,
"%%SystemRoot%%\\system32\\config\\%s.tdb",
*elogs);
if (evt_tdb == NULL) {
goto done;
}
status = dcerpc_winreg_set_expand_sz(tmp_ctx,
h,
&key_hnd,
"File",
evt_tdb,
&result);
TALLOC_FREE(evt_tdb);
status = dcerpc_winreg_add_multi_sz(tmp_ctx,
h,
&key_hnd,
"Sources",
*elogs,
&result);
if (is_valid_policy_hnd(&key_hnd)) {
dcerpc_winreg_CloseKey(h, tmp_ctx, &key_hnd, &result);
}
/* sub-subkeys */
{
uint32_t uiCategoryCount = 0x00000007;
wkey.name = talloc_asprintf(tmp_ctx,
"%s\\%s",
wkey.name, *elogs);
if (wkey.name == NULL) {
result = WERR_NOMEM;
goto done;
}
status = dcerpc_winreg_CreateKey(h,
tmp_ctx,
&hive_hnd,
wkey,
wkeyclass,
0,
access_mask,
NULL,
&key_hnd,
&action,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("eventlog_init_winreg_keys: Could not create key %s: %s\n",
wkey.name, nt_errstr(status)));
goto done;
}
if (!W_ERROR_IS_OK(result)) {
DEBUG(0, ("eventlog_init_winreg_keys: Could not create key %s: %s\n",
wkey.name, win_errstr(result)));
goto done;
}
status = dcerpc_winreg_set_dword(tmp_ctx,
h,
&key_hnd,
"CategoryCount",
uiCategoryCount,
&result);
status = dcerpc_winreg_set_expand_sz(tmp_ctx,
h,
&key_hnd,
"CategoryMessageFile",
"%SystemRoot%\\system32\\eventlog.dll",
&result);
if (is_valid_policy_hnd(&key_hnd)) {
dcerpc_winreg_CloseKey(h, tmp_ctx, &key_hnd, &result);
}
}
elogs++;
} /* loop */
ok = true;
done:
TALLOC_FREE(tmp_ctx);
return ok;
}
/* vim: set ts=8 sw=8 noet cindent syntax=c.doxygen: */
|
