2 samba -- Unix SMB/CIFS implementation.
4 Client credentials structure
6 Copyright (C) Jelmer Vernooij 2004-2006
7 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
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/>.
22 #ifndef __CREDENTIALS_H__
23 #define __CREDENTIALS_H__
25 #include "../lib/util/data_blob.h"
26 #include "librpc/gen_ndr/misc.h"
28 struct ccache_container;
29 struct tevent_context;
31 /* In order of priority */
32 enum credentials_obtained {
33 CRED_UNINITIALISED = 0, /* We don't even have a guess yet */
34 CRED_CALLBACK, /* Callback should be used to obtain value */
35 CRED_GUESS_ENV, /* Current value should be used, which was guessed */
36 CRED_GUESS_FILE, /* A guess from a file (or file pointed at in env variable) */
37 CRED_CALLBACK_RESULT, /* Value was obtained from a callback */
38 CRED_SPECIFIED /* Was explicitly specified on the command-line */
41 enum credentials_use_kerberos {
42 CRED_AUTO_USE_KERBEROS = 0, /* Default, we try kerberos if available */
43 CRED_DONT_USE_KERBEROS, /* Sometimes trying kerberos just does 'bad things', so don't */
44 CRED_MUST_USE_KERBEROS /* Sometimes administrators are parinoid, so always do kerberos */
47 #define CLI_CRED_NTLM2 0x01
48 #define CLI_CRED_NTLMv2_AUTH 0x02
49 #define CLI_CRED_LANMAN_AUTH 0x04
50 #define CLI_CRED_NTLM_AUTH 0x08
51 #define CLI_CRED_CLEAR_AUTH 0x10 /* TODO: Push cleartext auth with this flag */
53 struct cli_credentials {
54 enum credentials_obtained workstation_obtained;
55 enum credentials_obtained username_obtained;
56 enum credentials_obtained password_obtained;
57 enum credentials_obtained domain_obtained;
58 enum credentials_obtained realm_obtained;
59 enum credentials_obtained ccache_obtained;
60 enum credentials_obtained client_gss_creds_obtained;
61 enum credentials_obtained principal_obtained;
62 enum credentials_obtained keytab_obtained;
63 enum credentials_obtained server_gss_creds_obtained;
65 /* Threshold values (essentially a MAX() over a number of the
66 * above) for the ccache and GSS credentials, to ensure we
67 * regenerate/pick correctly */
69 enum credentials_obtained ccache_threshold;
70 enum credentials_obtained client_gss_creds_threshold;
72 const char *workstation;
75 const char *old_password;
78 const char *principal;
79 const char *salt_principal;
83 /* Allows authentication from a keytab or similar */
84 struct samr_Password *nt_hash;
86 /* Allows NTLM pass-though authentication */
87 DATA_BLOB lm_response;
88 DATA_BLOB nt_response;
90 struct ccache_container *ccache;
91 struct gssapi_creds_container *client_gss_creds;
92 struct keytab_container *keytab;
93 struct gssapi_creds_container *server_gss_creds;
95 const char *(*workstation_cb) (struct cli_credentials *);
96 const char *(*password_cb) (struct cli_credentials *);
97 const char *(*username_cb) (struct cli_credentials *);
98 const char *(*domain_cb) (struct cli_credentials *);
99 const char *(*realm_cb) (struct cli_credentials *);
100 const char *(*principal_cb) (struct cli_credentials *);
102 /* Private handle for the callback routines to use */
105 struct netlogon_creds_CredentialState *netlogon_creds;
106 enum netr_SchannelType secure_channel_type;
109 struct smb_krb5_context *smb_krb5_context;
111 /* We are flagged to get machine account details from the
112 * secrets.ldb when we are asked for a username or password */
113 bool machine_account_pending;
114 struct loadparm_context *machine_account_pending_lp_ctx;
116 /* Is this a machine account? */
117 bool machine_account;
119 /* Should we be trying to use kerberos? */
120 enum credentials_use_kerberos use_kerberos;
122 /* gensec features which should be used for connections */
123 uint32_t gensec_features;
125 /* Number of retries left before bailing out */
128 /* Whether any callback is currently running */
129 bool callback_running;
133 struct loadparm_context;
134 struct ccache_container;
136 struct gssapi_creds_container;
138 const char *cli_credentials_get_workstation(struct cli_credentials *cred);
139 bool cli_credentials_set_workstation(struct cli_credentials *cred,
141 enum credentials_obtained obtained);
142 bool cli_credentials_is_anonymous(struct cli_credentials *cred);
143 struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx);
144 void cli_credentials_set_anonymous(struct cli_credentials *cred);
145 bool cli_credentials_wrong_password(struct cli_credentials *cred);
146 const char *cli_credentials_get_password(struct cli_credentials *cred);
147 void cli_credentials_get_ntlm_username_domain(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
148 const char **username,
149 const char **domain);
150 NTSTATUS cli_credentials_get_ntlm_response(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
152 DATA_BLOB challenge, DATA_BLOB target_info,
153 DATA_BLOB *_lm_response, DATA_BLOB *_nt_response,
154 DATA_BLOB *_lm_session_key, DATA_BLOB *_session_key);
155 const char *cli_credentials_get_realm(struct cli_credentials *cred);
156 const char *cli_credentials_get_username(struct cli_credentials *cred);
157 int cli_credentials_get_krb5_context(struct cli_credentials *cred,
158 struct tevent_context *event_ctx,
159 struct loadparm_context *lp_ctx,
160 struct smb_krb5_context **smb_krb5_context);
161 int cli_credentials_get_ccache(struct cli_credentials *cred,
162 struct tevent_context *event_ctx,
163 struct loadparm_context *lp_ctx,
164 struct ccache_container **ccc,
165 const char **error_string);
166 int cli_credentials_get_named_ccache(struct cli_credentials *cred,
167 struct tevent_context *event_ctx,
168 struct loadparm_context *lp_ctx,
170 struct ccache_container **ccc, const char **error_string);
171 int cli_credentials_get_keytab(struct cli_credentials *cred,
172 struct tevent_context *event_ctx,
173 struct loadparm_context *lp_ctx,
174 struct keytab_container **_ktc);
175 const char *cli_credentials_get_domain(struct cli_credentials *cred);
176 struct netlogon_creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred);
177 void cli_credentials_set_machine_account_pending(struct cli_credentials *cred,
178 struct loadparm_context *lp_ctx);
179 void cli_credentials_set_conf(struct cli_credentials *cred,
180 struct loadparm_context *lp_ctx);
181 const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx);
182 int cli_credentials_get_server_gss_creds(struct cli_credentials *cred,
183 struct tevent_context *event_ctx,
184 struct loadparm_context *lp_ctx,
185 struct gssapi_creds_container **_gcc);
186 int cli_credentials_get_client_gss_creds(struct cli_credentials *cred,
187 struct tevent_context *event_ctx,
188 struct loadparm_context *lp_ctx,
189 struct gssapi_creds_container **_gcc,
190 const char **error_string);
191 void cli_credentials_set_kerberos_state(struct cli_credentials *creds,
192 enum credentials_use_kerberos use_kerberos);
193 bool cli_credentials_set_domain(struct cli_credentials *cred,
195 enum credentials_obtained obtained);
196 bool cli_credentials_set_domain_callback(struct cli_credentials *cred,
197 const char *(*domain_cb) (struct cli_credentials *));
198 bool cli_credentials_set_username(struct cli_credentials *cred,
199 const char *val, enum credentials_obtained obtained);
200 bool cli_credentials_set_username_callback(struct cli_credentials *cred,
201 const char *(*username_cb) (struct cli_credentials *));
202 bool cli_credentials_set_principal(struct cli_credentials *cred,
204 enum credentials_obtained obtained);
205 bool cli_credentials_set_principal_callback(struct cli_credentials *cred,
206 const char *(*principal_cb) (struct cli_credentials *));
207 bool cli_credentials_set_password(struct cli_credentials *cred,
209 enum credentials_obtained obtained);
210 struct cli_credentials *cli_credentials_init_anon(TALLOC_CTX *mem_ctx);
211 void cli_credentials_parse_string(struct cli_credentials *credentials, const char *data, enum credentials_obtained obtained);
212 const struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
213 TALLOC_CTX *mem_ctx);
214 bool cli_credentials_set_realm(struct cli_credentials *cred,
216 enum credentials_obtained obtained);
217 void cli_credentials_set_secure_channel_type(struct cli_credentials *cred,
218 enum netr_SchannelType secure_channel_type);
219 void cli_credentials_set_netlogon_creds(struct cli_credentials *cred,
220 struct netlogon_creds_CredentialState *netlogon_creds);
221 NTSTATUS cli_credentials_set_krb5_context(struct cli_credentials *cred,
222 struct smb_krb5_context *smb_krb5_context);
223 NTSTATUS cli_credentials_set_stored_principal(struct cli_credentials *cred,
224 struct tevent_context *event_ctx,
225 struct loadparm_context *lp_ctx,
226 const char *serviceprincipal);
227 NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred,
228 struct loadparm_context *lp_ctx);
229 bool cli_credentials_authentication_requested(struct cli_credentials *cred);
230 void cli_credentials_guess(struct cli_credentials *cred,
231 struct loadparm_context *lp_ctx);
232 bool cli_credentials_set_bind_dn(struct cli_credentials *cred,
233 const char *bind_dn);
234 const char *cli_credentials_get_bind_dn(struct cli_credentials *cred);
235 bool cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained);
236 const char *cli_credentials_get_unparsed_name(struct cli_credentials *credentials, TALLOC_CTX *mem_ctx);
237 bool cli_credentials_set_password_callback(struct cli_credentials *cred,
238 const char *(*password_cb) (struct cli_credentials *));
239 enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred);
240 void cli_credentials_set_kvno(struct cli_credentials *cred,
242 bool cli_credentials_set_nt_hash(struct cli_credentials *cred,
243 const struct samr_Password *nt_hash,
244 enum credentials_obtained obtained);
245 bool cli_credentials_set_ntlm_response(struct cli_credentials *cred,
246 const DATA_BLOB *lm_response,
247 const DATA_BLOB *nt_response,
248 enum credentials_obtained obtained);
249 int cli_credentials_set_keytab_name(struct cli_credentials *cred,
250 struct tevent_context *event_ctx,
251 struct loadparm_context *lp_ctx,
252 const char *keytab_name,
253 enum credentials_obtained obtained);
254 int cli_credentials_update_keytab(struct cli_credentials *cred,
255 struct tevent_context *event_ctx,
256 struct loadparm_context *lp_ctx);
257 void cli_credentials_set_gensec_features(struct cli_credentials *creds, uint32_t gensec_features);
258 uint32_t cli_credentials_get_gensec_features(struct cli_credentials *creds);
259 int cli_credentials_set_ccache(struct cli_credentials *cred,
260 struct tevent_context *event_ctx,
261 struct loadparm_context *lp_ctx,
263 enum credentials_obtained obtained,
264 const char **error_string);
265 bool cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained);
266 bool cli_credentials_parse_password_fd(struct cli_credentials *credentials,
267 int fd, enum credentials_obtained obtained);
268 void cli_credentials_invalidate_ccache(struct cli_credentials *cred,
269 enum credentials_obtained obtained);
270 void cli_credentials_set_salt_principal(struct cli_credentials *cred, const char *principal);
271 enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds);
272 NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred,
273 struct tevent_context *event_ctx,
274 struct loadparm_context *lp_ctx,
275 struct ldb_context *ldb,
278 char **error_string);
279 int cli_credentials_get_kvno(struct cli_credentials *cred);
281 #endif /* __CREDENTIALS_H__ */