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diff --git a/source3/auth/auth_wbc.c b/source3/auth/auth_wbc.c
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+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind client authentication mechanism designed to defer all
+ authentication to the winbind daemon.
+
+ Copyright (C) Tim Potter 2000
+ Copyright (C) Andrew Bartlett 2001 - 2002
+ Copyright (C) Dan Sledz 2009
+
+ 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/>.
+*/
+
+/* This auth module is very similar to auth_winbind with 3 distinct
+ * differences.
+ *
+ * 1) Does not fallback to another auth module if winbindd is unavailable
+ * 2) Does not validate the domain of the user
+ * 3) Handles unencrypted passwords
+ *
+ * The purpose of this module is to defer all authentication decisions (ie:
+ * local user vs NIS vs LDAP vs AD; encrypted vs plaintext) to the wbc
+ * compatible daemon. This centeralizes all authentication decisions to a
+ * single provider.
+ *
+ * This auth backend is most useful when used in conjunction with pdb_wbc_sam.
+ */
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+/* Authenticate a user with a challenge/response */
+
+static NTSTATUS check_wbc_security(const struct auth_context *auth_context,
+ void *my_private_data,
+ TALLOC_CTX *mem_ctx,
+ const auth_usersupplied_info *user_info,
+ auth_serversupplied_info **server_info)
+{
+ NTSTATUS nt_status;
+ wbcErr wbc_status;
+ struct wbcAuthUserParams params;
+ struct wbcAuthUserInfo *info = NULL;
+ struct wbcAuthErrorInfo *err = NULL;
+
+ if (!user_info || !auth_context || !server_info) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ /* Send off request */
+
+ params.account_name = user_info->smb_name;
+ params.domain_name = user_info->domain;
+ params.workstation_name = user_info->wksta_name;
+
+ params.flags = 0;
+ params.parameter_control= user_info->logon_parameters;
+
+ /* Handle plaintext */
+ if (!user_info->encrypted) {
+ DEBUG(3,("Checking plaintext password for %s.\n",
+ user_info->internal_username));
+ params.level = WBC_AUTH_USER_LEVEL_PLAIN;
+
+ params.password.plaintext = user_info->plaintext_password.data;
+ } else {
+ DEBUG(3,("Checking encrypted password for %s.\n",
+ user_info->internal_username));
+ params.level = WBC_AUTH_USER_LEVEL_RESPONSE;
+
+ memcpy(params.password.response.challenge,
+ auth_context->challenge.data,
+ sizeof(params.password.response.challenge));
+
+ params.password.response.nt_length = user_info->nt_resp.length;
+ params.password.response.nt_data = user_info->nt_resp.data;
+ params.password.response.lm_length = user_info->lm_resp.length;
+ params.password.response.lm_data = user_info->lm_resp.data;
+
+ }
+
+ /* we are contacting the privileged pipe */
+ become_root();
+ wbc_status = wbcAuthenticateUserEx(&params, &info, &err);
+ unbecome_root();
+
+ if (!WBC_ERROR_IS_OK(wbc_status)) {
+ DEBUG(10,("wbcAuthenticateUserEx failed (%d): %s\n",
+ wbc_status, wbcErrorString(wbc_status)));
+ }
+
+ if (wbc_status == WBC_ERR_NO_MEMORY) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (wbc_status == WBC_ERR_AUTH_ERROR) {
+ nt_status = NT_STATUS(err->nt_status);
+ wbcFreeMemory(err);
+ return nt_status;
+ }
+
+ if (!WBC_ERROR_IS_OK(wbc_status)) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
+ DEBUG(10,("wbcAuthenticateUserEx succeeded\n"));
+
+ nt_status = make_server_info_wbcAuthUserInfo(mem_ctx,
+ user_info->smb_name,
+ user_info->domain,
+ info, server_info);
+ wbcFreeMemory(info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ (*server_info)->nss_token |= user_info->was_mapped;
+
+ return nt_status;
+}
+
+/* module initialisation */
+static NTSTATUS auth_init_wbc(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*auth_method)->name = "wbc";
+ (*auth_method)->auth = check_wbc_security;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS auth_wbc_init(void)
+{
+ return smb_register_auth(AUTH_INTERFACE_VERSION, "wbc", auth_init_wbc);
+}