2 Unix SMB/CIFS implementation.
4 Winbind authentication mechnism
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Andrew Bartlett 2001 - 2002
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #define DBGC_CLASS DBGC_AUTH
28 static NTSTATUS get_info3_from_ndr(TALLOC_CTX *mem_ctx, struct winbindd_response *response, NET_USER_INFO_3 *info3)
31 size_t len = response->length - sizeof(struct winbindd_response);
34 info3_ndr = (uint8 *)response->extra_data.data;
35 if (!prs_init(&ps, len, mem_ctx, UNMARSHALL)) {
36 return NT_STATUS_NO_MEMORY;
38 prs_copy_data_in(&ps, (char *)info3_ndr, len);
39 prs_set_offset(&ps,0);
40 if (!net_io_user_info3("", info3, &ps, 1, 3, False)) {
41 DEBUG(2, ("get_info3_from_ndr: could not parse info3 struct!\n"));
42 return NT_STATUS_UNSUCCESSFUL;
48 DEBUG(2, ("get_info3_from_ndr: No info3 struct found!\n"));
49 return NT_STATUS_UNSUCCESSFUL;
53 /* Authenticate a user with a challenge/response */
55 static NTSTATUS check_winbind_security(const struct auth_context *auth_context,
56 void *my_private_data,
58 const auth_usersupplied_info *user_info,
59 auth_serversupplied_info **server_info)
61 struct winbindd_request request;
62 struct winbindd_response response;
65 NET_USER_INFO_3 info3;
68 return NT_STATUS_INVALID_PARAMETER;
72 DEBUG(3,("Password for user %s cannot be checked because we have no auth_info to get the challenge from.\n",
73 user_info->internal_username));
74 return NT_STATUS_INVALID_PARAMETER;
77 if (strequal(user_info->domain, get_global_sam_name())) {
78 DEBUG(3,("check_winbind_security: Not using winbind, requested domain [%s] was for this SAM.\n",
80 return NT_STATUS_NOT_IMPLEMENTED;
83 /* Send off request */
86 ZERO_STRUCT(response);
88 request.flags = WBFLAG_PAM_INFO3_NDR;
90 request.data.auth_crap.logon_parameters = user_info->logon_parameters;
92 fstrcpy(request.data.auth_crap.user, user_info->smb_name);
93 fstrcpy(request.data.auth_crap.domain, user_info->domain);
94 fstrcpy(request.data.auth_crap.workstation, user_info->wksta_name);
96 memcpy(request.data.auth_crap.chal, auth_context->challenge.data, sizeof(request.data.auth_crap.chal));
98 request.data.auth_crap.lm_resp_len = MIN(user_info->lm_resp.length,
99 sizeof(request.data.auth_crap.lm_resp));
100 request.data.auth_crap.nt_resp_len = MIN(user_info->nt_resp.length,
101 sizeof(request.data.auth_crap.nt_resp));
103 memcpy(request.data.auth_crap.lm_resp, user_info->lm_resp.data,
104 request.data.auth_crap.lm_resp_len);
105 memcpy(request.data.auth_crap.nt_resp, user_info->nt_resp.data,
106 request.data.auth_crap.nt_resp_len);
108 /* we are contacting the privileged pipe */
110 result = winbindd_priv_request_response(WINBINDD_PAM_AUTH_CRAP,
111 &request, &response);
114 if ( result == NSS_STATUS_UNAVAIL ) {
115 struct auth_methods *auth_method =
116 (struct auth_methods *)my_private_data;
119 return auth_method->auth(auth_context, auth_method->private_data,
120 mem_ctx, user_info, server_info);
122 /* log an error since this should not happen */
123 DEBUG(0,("check_winbind_security: ERROR! my_private_data == NULL!\n"));
126 nt_status = NT_STATUS(response.data.auth.nt_status);
128 if (result == NSS_STATUS_SUCCESS && response.extra_data.data) {
129 if (NT_STATUS_IS_OK(nt_status)) {
130 if (NT_STATUS_IS_OK(nt_status = get_info3_from_ndr(mem_ctx, &response, &info3))) {
131 nt_status = make_server_info_info3(mem_ctx,
132 user_info->smb_name, user_info->domain,
133 server_info, &info3);
136 if (NT_STATUS_IS_OK(nt_status)) {
137 if (user_info->was_mapped) {
138 (*server_info)->was_mapped = user_info->was_mapped;
142 } else if (NT_STATUS_IS_OK(nt_status)) {
143 nt_status = NT_STATUS_NO_LOGON_SERVERS;
146 SAFE_FREE(response.extra_data.data);
150 /* module initialisation */
151 static NTSTATUS auth_init_winbind(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
153 if (!make_auth_methods(auth_context, auth_method)) {
154 return NT_STATUS_NO_MEMORY;
157 (*auth_method)->name = "winbind";
158 (*auth_method)->auth = check_winbind_security;
160 if (param && *param) {
161 /* we load the 'fallback' module - if winbind isn't here, call this
164 if (!load_auth_module(auth_context, param, &priv)) {
165 return NT_STATUS_UNSUCCESSFUL;
167 (*auth_method)->private_data = (void *)priv;
172 NTSTATUS auth_winbind_init(void)
174 return smb_register_auth(AUTH_INTERFACE_VERSION, "winbind", auth_init_winbind);