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/*
* Unix SMB/CIFS implementation.
*
* SPOOLSS RPC Pipe server / winreg client routines
*
* Copyright (c) 2010 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 "srv_spoolss_util.h"
#include "../librpc/gen_ndr/srv_winreg.h"
#include "../librpc/gen_ndr/cli_winreg.h"
/**
* @internal
*
* @brief Connect to the interal winreg server and open the given printer key.
*
* The function will create the needed subkeys if they don't exist.
*
* @param[in] mem_ctx The memory context to use.
*
* @param[in] server_info The supplied server info.
*
* @param[out] winreg_pipe A pointer for the winreg rpc client pipe.
*
* @param[in] name The name of the printer.
*
* @param[in] key The key to open.
*
* @param[in] create_key Set to true if the key should be created if it
* doesn't exist.
*
* @param[in] access_mask The access mask to open the key.
*
* @param[out] hive_handle A policy handle for the opened hive.
*
* @param[out] key_handle A policy handle for the opened key.
*
* @return WERR_OK on success, the corresponding DOS error
* code if something gone wrong.
*/
static WERROR winreg_printer_openkey(TALLOC_CTX *mem_ctx,
struct auth_serversupplied_info *server_info,
struct rpc_pipe_client **winreg_pipe,
const char *name,
const char *key,
bool create_key,
uint32_t access_mask,
struct policy_handle *hive_handle,
struct policy_handle *key_handle)
{
struct rpc_pipe_client *pipe_handle;
struct winreg_String wkey, wkeyclass;
char *keyname;
NTSTATUS status;
WERROR result = WERR_OK;
/* create winreg connection */
status = rpc_pipe_open_internal(mem_ctx,
&ndr_table_winreg.syntax_id,
rpc_winreg_dispatch,
server_info,
&pipe_handle);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("winreg_printer_openkey: Could not connect to winreg_pipe: %s\n",
nt_errstr(status)));
return ntstatus_to_werror(status);
}
status = rpccli_winreg_OpenHKLM(pipe_handle,
mem_ctx,
NULL,
access_mask,
hive_handle,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("winreg_printer_openkey: Could not open HKLM hive: %s\n",
nt_errstr(status)));
talloc_free(pipe_handle);
if (!W_ERROR_IS_OK(result)) {
return result;
}
return ntstatus_to_werror(status);
}
if (key && *key) {
keyname = talloc_asprintf(mem_ctx,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Print\\Printers\\%s\\%s",
name,
key);
} else {
keyname = talloc_asprintf(mem_ctx,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Print\\Printers\\%s",
name);
}
if (keyname == NULL) {
talloc_free(pipe_handle);
return WERR_NOMEM;
}
ZERO_STRUCT(wkey);
wkey.name = keyname;
if (create_key) {
enum winreg_CreateAction action = REG_ACTION_NONE;
ZERO_STRUCT(wkeyclass);
wkeyclass.name = "";
status = rpccli_winreg_CreateKey(pipe_handle,
mem_ctx,
hive_handle,
wkey,
wkeyclass,
0,
access_mask,
NULL,
key_handle,
&action,
&result);
switch (action) {
case REG_ACTION_NONE:
DEBUG(8, ("winreg_printer_openkey:createkey did nothing -- huh?\n"));
break;
case REG_CREATED_NEW_KEY:
DEBUG(8, ("winreg_printer_openkey: createkey created %s\n", keyname));
break;
case REG_OPENED_EXISTING_KEY:
DEBUG(8, ("winreg_printer_openkey: createkey opened existing %s\n", keyname));
break;
}
} else {
status = rpccli_winreg_OpenKey(pipe_handle,
mem_ctx,
hive_handle,
wkey,
0,
access_mask,
key_handle,
&result);
}
if (!NT_STATUS_IS_OK(status)) {
talloc_free(pipe_handle);
if (!W_ERROR_IS_OK(result)) {
return result;
}
return ntstatus_to_werror(status);
}
*winreg_pipe = pipe_handle;
return WERR_OK;
}
/* Set printer data over the winreg pipe. */
WERROR winreg_set_printer_dataex(struct pipes_struct *p,
const char *printer,
const char *key,
const char *value,
enum winreg_Type type,
uint8_t *data,
uint32_t data_size)
{
uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
struct rpc_pipe_client *winreg_pipe = NULL;
struct policy_handle hive_hnd, key_hnd;
struct winreg_String wvalue;
WERROR result = WERR_OK;
NTSTATUS status;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(p->mem_ctx);
if (tmp_ctx == NULL) {
return WERR_NOMEM;
}
ZERO_STRUCT(hive_hnd);
ZERO_STRUCT(key_hnd);
DEBUG(8, ("winreg_set_printer_dataex: Open printer key %s, value %s, access_mask: 0x%05x for [%s]\n",
key, value, access_mask, printer));
result = winreg_printer_openkey(tmp_ctx,
p->server_info,
&winreg_pipe,
printer,
key,
true,
access_mask,
&hive_hnd,
&key_hnd);
if (!W_ERROR_IS_OK(result)) {
DEBUG(0, ("winreg_set_printer_dataex: Could not open key %s: %s\n",
key, win_errstr(result)));
goto done;
}
wvalue.name = value;
status = rpccli_winreg_SetValue(winreg_pipe,
tmp_ctx,
&key_hnd,
wvalue,
type,
data,
data_size,
&result);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("winreg_set_printer_dataex: Could not set value %s: %s\n",
value, nt_errstr(status)));
if (!W_ERROR_IS_OK(result)) {
goto done;
}
result = ntstatus_to_werror(status);
goto done;
}
result = WERR_OK;
done:
if (winreg_pipe != NULL) {
if (is_valid_policy_hnd(&key_hnd)) {
rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &key_hnd, NULL);
}
if (is_valid_policy_hnd(&hive_hnd)) {
rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &hive_hnd, NULL);
}
}
TALLOC_FREE(tmp_ctx);
return result;
}
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