--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind authentication mechnism
+
+ Copyright (C) Tim Potter 2000
+ Copyright (C) Andrew Bartlett 2001 - 2002
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+static NTSTATUS get_info3_from_ndr(TALLOC_CTX *mem_ctx, struct winbindd_response *response, NET_USER_INFO_3 *info3)
+{
+ uint8 *info3_ndr;
+ size_t len = response->length - sizeof(struct winbindd_response);
+ prs_struct ps;
+ if (len > 0) {
+ info3_ndr = response->extra_data;
+ if (!prs_init(&ps, len, mem_ctx, UNMARSHALL)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ prs_copy_data_in(&ps, (char *)info3_ndr, len);
+ prs_set_offset(&ps,0);
+ if (!net_io_user_info3("", info3, &ps, 1, 3, False)) {
+ DEBUG(2, ("get_info3_from_ndr: could not parse info3 struct!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ prs_mem_free(&ps);
+
+ return NT_STATUS_OK;
+ } else {
+ DEBUG(2, ("get_info3_from_ndr: No info3 struct found!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+}
+
+/* Authenticate a user with a challenge/response */
+
+static NTSTATUS check_winbind_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)
+{
+ struct winbindd_request request;
+ struct winbindd_response response;
+ NSS_STATUS result;
+ NTSTATUS nt_status;
+ NET_USER_INFO_3 info3;
+
+ if (!user_info) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (!auth_context) {
+ DEBUG(3,("Password for user %s cannot be checked because we have no auth_info to get the challenge from.\n",
+ user_info->internal_username.str));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (strequal(user_info->domain.str, get_global_sam_name())) {
+ DEBUG(3,("check_winbind_security: Not using winbind, requested domain [%s] was for this SAM.\n",
+ user_info->domain.str));
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+
+ /* Send off request */
+
+ ZERO_STRUCT(request);
+ ZERO_STRUCT(response);
+
+ request.flags = WBFLAG_PAM_INFO3_NDR;
+
+ request.data.auth_crap.logon_parameters = user_info->logon_parameters;
+
+ fstrcpy(request.data.auth_crap.user,
+ user_info->smb_name.str);
+ fstrcpy(request.data.auth_crap.domain,
+ user_info->domain.str);
+ fstrcpy(request.data.auth_crap.workstation,
+ user_info->wksta_name.str);
+
+ memcpy(request.data.auth_crap.chal, auth_context->challenge.data, sizeof(request.data.auth_crap.chal));
+
+ request.data.auth_crap.lm_resp_len = MIN(user_info->lm_resp.length,
+ sizeof(request.data.auth_crap.lm_resp));
+ request.data.auth_crap.nt_resp_len = MIN(user_info->nt_resp.length,
+ sizeof(request.data.auth_crap.nt_resp));
+
+ memcpy(request.data.auth_crap.lm_resp, user_info->lm_resp.data,
+ request.data.auth_crap.lm_resp_len);
+ memcpy(request.data.auth_crap.nt_resp, user_info->nt_resp.data,
+ request.data.auth_crap.nt_resp_len);
+
+ /* we are contacting the privileged pipe */
+ become_root();
+ result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
+ unbecome_root();
+
+ if ( result == NSS_STATUS_UNAVAIL ) {
+ struct auth_methods *auth_method = my_private_data;
+
+ if ( auth_method )
+ return auth_method->auth(auth_context, auth_method->private_data,
+ mem_ctx, user_info, server_info);
+ else
+ /* log an error since this should not happen */
+ DEBUG(0,("check_winbind_security: ERROR! my_private_data == NULL!\n"));
+ }
+
+ nt_status = NT_STATUS(response.data.auth.nt_status);
+
+ if (result == NSS_STATUS_SUCCESS && response.extra_data) {
+ if (NT_STATUS_IS_OK(nt_status)) {
+ if (NT_STATUS_IS_OK(nt_status = get_info3_from_ndr(mem_ctx, &response, &info3))) {
+ nt_status = make_server_info_info3(mem_ctx,
+ user_info->internal_username.str,
+ user_info->smb_name.str, user_info->domain.str,
+ server_info, &info3);
+ }
+
+ }
+ } else if (NT_STATUS_IS_OK(nt_status)) {
+ nt_status = NT_STATUS_NO_LOGON_SERVERS;
+ }
+
+ SAFE_FREE(response.extra_data);
+ return nt_status;
+}
+
+/* module initialisation */
+static NTSTATUS auth_init_winbind(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 = "winbind";
+ (*auth_method)->auth = check_winbind_security;
+
+ if (param && *param) {
+ /* we load the 'fallback' module - if winbind isn't here, call this
+ module */
+ if (!load_auth_module(auth_context, param, (auth_methods **)&(*auth_method)->private_data)) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ }
+ return NT_STATUS_OK;
+}
+
+NTSTATUS auth_winbind_init(void)
+{
+ return smb_register_auth(AUTH_INTERFACE_VERSION, "winbind", auth_init_winbind);
+}
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