2 Unix SMB/CIFS implementation.
4 Winbind daemon - pam auth funcions
6 Copyright (C) Andrew Tridgell 2000
7 Copyright (C) Tim Potter 2001
8 Copyright (C) Andrew Bartlett 2001-2002
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 /* Return a password structure from a username. */
29 enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
32 fstring name_domain, name_user;
34 unsigned char trust_passwd[16];
35 time_t last_change_time;
37 NET_USER_INFO_3 info3;
38 struct cli_state *cli = NULL;
40 TALLOC_CTX *mem_ctx = NULL;
44 extern pstring global_myname;
46 DEBUG(3, ("[%5d]: pam auth %s\n", state->pid,
47 state->request.data.auth.user));
49 if (!(mem_ctx = talloc_init_named("winbind pam auth for %s", state->request.data.auth.user))) {
50 DEBUG(0, ("winbindd_pam_auth: could not talloc_init()!\n"));
51 result = NT_STATUS_NO_MEMORY;
55 /* Parse domain and username */
57 if (!parse_domain_user(state->request.data.auth.user, name_domain,
59 DEBUG(5,("no domain seperator (%s) in username (%s) - failing auth\n", lp_winbind_separator(), state->request.data.auth.user));
60 result = NT_STATUS_INVALID_PARAMETER;
64 passlen = strlen(state->request.data.auth.pass);
67 unsigned char local_lm_response[24];
68 unsigned char local_nt_response[24];
70 generate_random_buffer(chal, 8, False);
71 SMBencrypt( (const uchar *)state->request.data.auth.pass, chal, local_lm_response);
73 SMBNTencrypt((const uchar *)state->request.data.auth.pass, chal, local_nt_response);
75 lm_resp = data_blob_talloc(mem_ctx, local_lm_response, sizeof(local_lm_response));
76 nt_resp = data_blob_talloc(mem_ctx, local_nt_response, sizeof(local_nt_response));
80 * Get the machine account password for our primary domain
83 if (!secrets_fetch_trust_account_password(
84 lp_workgroup(), trust_passwd, &last_change_time)) {
85 DEBUG(0, ("winbindd_pam_auth: could not fetch trust account "
86 "password for domain %s\n", lp_workgroup()));
87 result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
91 /* We really don't care what LUID we give the user. */
93 generate_random_buffer( (unsigned char *)&smb_uid_low, 4, False);
97 /* Don't shut this down - it belongs to the connection cache code */
98 result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
100 if (!NT_STATUS_IS_OK(result)) {
101 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
105 result = cli_netlogon_sam_network_logon(cli, mem_ctx,
106 name_user, name_domain,
111 uni_group_cache_store_netlogon(mem_ctx, &info3);
114 state->response.data.auth.nt_status = NT_STATUS_V(result);
115 fstrcpy(state->response.data.auth.nt_status_string, get_nt_error_msg(result));
116 fstrcpy(state->response.data.auth.error_string, get_nt_error_msg(result));
117 state->response.data.auth.pam_error = nt_status_to_pam(result);
119 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("Plain-text authenticaion for user %s returned %s (PAM: %d)\n",
120 state->request.data.auth.user,
121 state->response.data.auth.nt_status_string,
122 state->response.data.auth.pam_error));
125 talloc_destroy(mem_ctx);
127 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
130 /* Challenge Response Authentication Protocol */
132 enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
135 unsigned char trust_passwd[16];
136 time_t last_change_time;
137 NET_USER_INFO_3 info3;
138 struct cli_state *cli = NULL;
139 TALLOC_CTX *mem_ctx = NULL;
140 const char *domain = NULL;
142 DATA_BLOB lm_resp, nt_resp;
144 extern pstring global_myname;
146 DEBUG(3, ("[%5d]: pam auth crap domain: %s user: %s\n", state->pid,
147 state->request.data.auth_crap.domain, state->request.data.auth_crap.user));
149 if (!(mem_ctx = talloc_init_named("winbind pam auth crap for %s", state->request.data.auth.user))) {
150 DEBUG(0, ("winbindd_pam_auth_crap: could not talloc_init()!\n"));
151 result = NT_STATUS_NO_MEMORY;
155 if (*state->request.data.auth_crap.domain) {
156 domain = talloc_strdup(mem_ctx, state->request.data.auth_crap.domain);
157 } else if (lp_winbind_use_default_domain()) {
158 domain = talloc_strdup(mem_ctx, lp_workgroup());
160 DEBUG(5,("no domain specified with username (%s) - failing auth\n", state->request.data.auth.user));
161 result = NT_STATUS_INVALID_PARAMETER;
166 DEBUG(0,("winbindd_pam_auth_crap: talloc_strdup failed!\n"));
167 result = NT_STATUS_NO_MEMORY;
171 lm_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.lm_resp, state->request.data.auth_crap.lm_resp_len);
172 nt_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.nt_resp, state->request.data.auth_crap.nt_resp_len);
175 * Get the machine account password for our primary domain
178 if (!secrets_fetch_trust_account_password(
179 lp_workgroup(), trust_passwd, &last_change_time)) {
180 DEBUG(0, ("winbindd_pam_auth: could not fetch trust account "
181 "password for domain %s\n", lp_workgroup()));
182 result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
188 /* Don't shut this down - it belongs to the connection cache code */
189 result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
191 if (!NT_STATUS_IS_OK(result)) {
192 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
196 result = cli_netlogon_sam_network_logon(cli, mem_ctx,
197 state->request.data.auth_crap.user, domain,
198 global_myname, state->request.data.auth_crap.chal,
202 if (NT_STATUS_IS_OK(result)) {
203 uni_group_cache_store_netlogon(mem_ctx, &info3);
208 state->response.data.auth.nt_status = NT_STATUS_V(result);
209 fstrcpy(state->response.data.auth.nt_status_string, get_nt_error_msg(result));
210 fstrcpy(state->response.data.auth.error_string, get_nt_error_msg(result));
211 state->response.data.auth.pam_error = nt_status_to_pam(result);
213 DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("NTLM CRAP authenticaion for user [%s]\\[%s] returned %s (PAM: %d)\n",
214 state->request.data.auth_crap.domain,
215 state->request.data.auth_crap.user,
216 state->response.data.auth.nt_status_string,
217 state->response.data.auth.pam_error));
220 talloc_destroy(mem_ctx);
222 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
225 /* Change a user password */
227 enum winbindd_result winbindd_pam_chauthtok(struct winbindd_cli_state *state)
230 char *oldpass, *newpass;
231 fstring domain, user;
234 DEBUG(3, ("[%5d]: pam chauthtok %s\n", state->pid,
235 state->request.data.chauthtok.user));
240 return WINBINDD_ERROR;
242 if (!parse_domain_user(state->request.data.chauthtok.user, domain,
244 result = NT_STATUS_INVALID_PARAMETER;
248 /* Change password */
250 oldpass = state->request.data.chauthtok.oldpass;
251 newpass = state->request.data.chauthtok.newpass;
255 if (!(hnd = cm_get_sam_handle(domain))) {
256 DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
257 result = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
261 if (!cli_oem_change_password(hnd->cli, user, newpass, oldpass)) {
262 DEBUG(1, ("password change failed for user %s/%s\n", domain,
264 result = NT_STATUS_WRONG_PASSWORD;
266 result = NT_STATUS_OK;
270 state->response.data.auth.nt_status = NT_STATUS_V(result);
271 fstrcpy(state->response.data.auth.nt_status_string, get_nt_error_msg(result));
272 fstrcpy(state->response.data.auth.error_string, get_nt_error_msg(result));
273 state->response.data.auth.pam_error = nt_status_to_pam(result);
275 return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;