/* * Unix SMB/CIFS implementation. * * WINREG internal client routines * * Copyright (c) 2011 Andreas Schneider * * 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 . */ #include "includes.h" #include "include/registry.h" #include "librpc/gen_ndr/ndr_winreg_c.h" #include "rpc_client/cli_winreg_int.h" #include "rpc_server/rpc_ncacn_np.h" #include "../lib/tsocket/tsocket.h" /** * Split path into hive name and subkeyname * normalizations performed: * - if the path contains no '\\' characters, * assume that the legacy format of using '/' * as a separator is used and convert '/' to '\\' * - strip trailing '\\' chars */ static WERROR _split_hive_key(TALLOC_CTX *mem_ctx, const char *path, char **hivename, char **subkeyname) { char *p; const char *tmp_subkeyname; if ((path == NULL) || (hivename == NULL) || (subkeyname == NULL)) { return WERR_INVALID_PARAM; } if (strlen(path) == 0) { return WERR_INVALID_PARAM; } if (strchr(path, '\\') == NULL) { *hivename = talloc_string_sub(mem_ctx, path, "/", "\\"); } else { *hivename = talloc_strdup(mem_ctx, path); } if (*hivename == NULL) { return WERR_NOMEM; } /* strip trailing '\\' chars */ p = strrchr(*hivename, '\\'); while ((p != NULL) && (p[1] == '\0')) { *p = '\0'; p = strrchr(*hivename, '\\'); } p = strchr(*hivename, '\\'); if ((p == NULL) || (*p == '\0')) { /* just the hive - no subkey given */ tmp_subkeyname = ""; } else { *p = '\0'; tmp_subkeyname = p+1; } *subkeyname = talloc_strdup(mem_ctx, tmp_subkeyname); if (*subkeyname == NULL) { return WERR_NOMEM; } return WERR_OK; } static NTSTATUS _winreg_int_openkey(TALLOC_CTX *mem_ctx, const struct auth_session_info *session_info, struct messaging_context *msg_ctx, struct dcerpc_binding_handle **h, uint32_t reg_type, const char *key, bool create_key, uint32_t access_mask, struct policy_handle *hive_handle, struct policy_handle *key_handle, WERROR *pwerr) { struct tsocket_address *local; struct dcerpc_binding_handle *binding_handle; struct winreg_String wkey, wkeyclass; NTSTATUS status; WERROR result = WERR_OK; int rc; rc = tsocket_address_inet_from_strings(mem_ctx, "ip", "127.0.0.1", 0, &local); if (rc < 0) { return NT_STATUS_NO_MEMORY; } status = rpcint_binding_handle(mem_ctx, &ndr_table_winreg, local, session_info, msg_ctx, &binding_handle); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("dcerpc_winreg_int_openkey: Could not connect to winreg pipe: %s\n", nt_errstr(status))); return status; } switch (reg_type) { case HKEY_LOCAL_MACHINE: status = dcerpc_winreg_OpenHKLM(binding_handle, mem_ctx, NULL, access_mask, hive_handle, &result); break; case HKEY_CLASSES_ROOT: status = dcerpc_winreg_OpenHKCR(binding_handle, mem_ctx, NULL, access_mask, hive_handle, &result); break; case HKEY_USERS: status = dcerpc_winreg_OpenHKU(binding_handle, mem_ctx, NULL, access_mask, hive_handle, &result); break; case HKEY_CURRENT_USER: status = dcerpc_winreg_OpenHKCU(binding_handle, mem_ctx, NULL, access_mask, hive_handle, &result); break; case HKEY_PERFORMANCE_DATA: status = dcerpc_winreg_OpenHKPD(binding_handle, mem_ctx, NULL, access_mask, hive_handle, &result); break; default: result = WERR_INVALID_PARAMETER; status = NT_STATUS_OK; } if (!NT_STATUS_IS_OK(status)) { talloc_free(binding_handle); return status; } if (!W_ERROR_IS_OK(result)) { talloc_free(binding_handle); *pwerr = result; return status; } ZERO_STRUCT(wkey); wkey.name = key; if (create_key) { enum winreg_CreateAction action = REG_ACTION_NONE; ZERO_STRUCT(wkeyclass); wkeyclass.name = ""; status = dcerpc_winreg_CreateKey(binding_handle, mem_ctx, hive_handle, wkey, wkeyclass, 0, access_mask, NULL, key_handle, &action, &result); switch (action) { case REG_ACTION_NONE: DEBUG(8, ("dcerpc_winreg_int_openkey: createkey" " did nothing -- huh?\n")); break; case REG_CREATED_NEW_KEY: DEBUG(8, ("dcerpc_winreg_int_openkey: createkey" " created %s\n", key)); break; case REG_OPENED_EXISTING_KEY: DEBUG(8, ("dcerpc_winreg_int_openkey: createkey" " opened existing %s\n", key)); break; } } else { status = dcerpc_winreg_OpenKey(binding_handle, mem_ctx, hive_handle, wkey, 0, access_mask, key_handle, &result); } if (!NT_STATUS_IS_OK(status)) { talloc_free(binding_handle); return status; } if (!W_ERROR_IS_OK(result)) { talloc_free(binding_handle); *pwerr = result; return status; } *h = binding_handle; return status; } NTSTATUS dcerpc_winreg_int_openkey(TALLOC_CTX *mem_ctx, const struct auth_session_info *server_info, struct messaging_context *msg_ctx, struct dcerpc_binding_handle **h, const char *key, bool create_key, uint32_t access_mask, struct policy_handle *hive_handle, struct policy_handle *key_handle, WERROR *pwerr) { char *hivename = NULL; char *subkey = NULL; uint32_t reg_type; WERROR result; result = _split_hive_key(mem_ctx, key, &hivename, &subkey); if (!W_ERROR_IS_OK(result)) { *pwerr = result; return NT_STATUS_OK; } if (strequal(hivename, "HKLM") || strequal(hivename, "HKEY_LOCAL_MACHINE")) { reg_type = HKEY_LOCAL_MACHINE; } else if (strequal(hivename, "HKCR") || strequal(hivename, "HKEY_CLASSES_ROOT")) { reg_type = HKEY_CLASSES_ROOT; } else if (strequal(hivename, "HKU") || strequal(hivename, "HKEY_USERS")) { reg_type = HKEY_USERS; } else if (strequal(hivename, "HKCU") || strequal(hivename, "HKEY_CURRENT_USER")) { reg_type = HKEY_CURRENT_USER; } else if (strequal(hivename, "HKPD") || strequal(hivename, "HKEY_PERFORMANCE_DATA")) { reg_type = HKEY_PERFORMANCE_DATA; } else { DEBUG(10,("dcerpc_winreg_int_openkey: unrecognised hive key %s\n", key)); *pwerr = WERR_INVALID_PARAMETER; return NT_STATUS_OK; } return _winreg_int_openkey(mem_ctx, server_info, msg_ctx, h, reg_type, key, create_key, access_mask, hive_handle, key_handle, pwerr); } NTSTATUS dcerpc_winreg_int_hklm_openkey(TALLOC_CTX *mem_ctx, const struct auth_session_info *server_info, struct messaging_context *msg_ctx, struct dcerpc_binding_handle **h, const char *key, bool create_key, uint32_t access_mask, struct policy_handle *hive_handle, struct policy_handle *key_handle, WERROR *pwerr) { return _winreg_int_openkey(mem_ctx, server_info, msg_ctx, h, HKEY_LOCAL_MACHINE, key, create_key, access_mask, hive_handle, key_handle, pwerr); } /* vim: set ts=8 sw=8 noet cindent syntax=c.doxygen: */