source: branches/samba-3.5.x/source4/auth/auth.h@ 738

Last change on this file since 738 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 9.3 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Standardised Authentication types
4 Copyright (C) Andrew Bartlett 2001
5 Copyright (C) Stefan Metzmacher 2005
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#ifndef _SAMBA_AUTH_H
22#define _SAMBA_AUTH_H
23
24#include "librpc/gen_ndr/ndr_krb5pac.h"
25
26extern const char *krbtgt_attrs[];
27extern const char *server_attrs[];
28extern const char *user_attrs[];
29
30union netr_Validation;
31struct netr_SamBaseInfo;
32struct netr_SamInfo3;
33struct loadparm_context;
34
35/* modules can use the following to determine if the interface has changed
36 * please increment the version number after each interface change
37 * with a comment and maybe update struct auth_critical_sizes.
38 */
39/* version 1 - version from samba 3.0 - metze */
40/* version 2 - initial samba4 version - metze */
41/* version 3 - subsequent samba4 version - abartlet */
42/* version 4 - subsequent samba4 version - metze */
43/* version 0 - till samba4 is stable - metze */
44#define AUTH_INTERFACE_VERSION 0
45
46#define USER_INFO_CASE_INSENSITIVE_USERNAME 0x01 /* username may be in any case */
47#define USER_INFO_CASE_INSENSITIVE_PASSWORD 0x02 /* password may be in any case */
48#define USER_INFO_DONT_CHECK_UNIX_ACCOUNT 0x04 /* dont check unix account status */
49#define USER_INFO_INTERACTIVE_LOGON 0x08 /* dont check unix account status */
50
51enum auth_password_state {
52 AUTH_PASSWORD_RESPONSE,
53 AUTH_PASSWORD_HASH,
54 AUTH_PASSWORD_PLAIN
55};
56
57struct auth_usersupplied_info
58{
59 const char *workstation_name;
60 struct socket_address *remote_host;
61
62 uint32_t logon_parameters;
63
64 bool mapped_state;
65 /* the values the client gives us */
66 struct {
67 const char *account_name;
68 const char *domain_name;
69 } client, mapped;
70
71 enum auth_password_state password_state;
72
73 union {
74 struct {
75 DATA_BLOB lanman;
76 DATA_BLOB nt;
77 } response;
78 struct {
79 struct samr_Password *lanman;
80 struct samr_Password *nt;
81 } hash;
82
83 char *plaintext;
84 } password;
85 uint32_t flags;
86};
87
88struct auth_serversupplied_info
89{
90 struct dom_sid *account_sid;
91 struct dom_sid *primary_group_sid;
92
93 size_t n_domain_groups;
94 struct dom_sid **domain_groups;
95
96 DATA_BLOB user_session_key;
97 DATA_BLOB lm_session_key;
98
99 const char *account_name;
100 const char *domain_name;
101
102 const char *full_name;
103 const char *logon_script;
104 const char *profile_path;
105 const char *home_directory;
106 const char *home_drive;
107 const char *logon_server;
108
109 NTTIME last_logon;
110 NTTIME last_logoff;
111 NTTIME acct_expiry;
112 NTTIME last_password_change;
113 NTTIME allow_password_change;
114 NTTIME force_password_change;
115
116 uint16_t logon_count;
117 uint16_t bad_password_count;
118
119 uint32_t acct_flags;
120
121 bool authenticated;
122
123 struct PAC_SIGNATURE_DATA pac_srv_sig, pac_kdc_sig;
124};
125
126struct auth_method_context;
127struct auth_check_password_request;
128struct auth_context;
129
130struct auth_operations {
131 const char *name;
132
133 /* If you are using this interface, then you are probably
134 * getting something wrong. This interface is only for
135 * security=server, and makes a number of compromises to allow
136 * that. It is not compatible with being a PDC. */
137
138 NTSTATUS (*get_challenge)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *challenge);
139
140 /* Given the user supplied info, check if this backend want to handle the password checking */
141
142 NTSTATUS (*want_check)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
143 const struct auth_usersupplied_info *user_info);
144
145 /* Given the user supplied info, check a password */
146
147 NTSTATUS (*check_password)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
148 const struct auth_usersupplied_info *user_info,
149 struct auth_serversupplied_info **server_info);
150
151 /* Lookup a 'server info' return based only on the principal */
152 NTSTATUS (*get_server_info_principal)(TALLOC_CTX *mem_ctx,
153 struct auth_context *auth_context,
154 const char *principal,
155 struct auth_serversupplied_info **server_info);
156};
157
158struct auth_method_context {
159 struct auth_method_context *prev, *next;
160 struct auth_context *auth_ctx;
161 const struct auth_operations *ops;
162 int depth;
163 void *private_data;
164};
165
166struct auth_context {
167 struct {
168 /* Who set this up in the first place? */
169 const char *set_by;
170
171 bool may_be_modified;
172
173 DATA_BLOB data;
174 } challenge;
175
176 /* methods, in the order they should be called */
177 struct auth_method_context *methods;
178
179 /* the event context to use for calls that can block */
180 struct tevent_context *event_ctx;
181
182 /* the messaging context which can be used by backends */
183 struct messaging_context *msg_ctx;
184
185 /* loadparm context */
186 struct loadparm_context *lp_ctx;
187
188 NTSTATUS (*check_password)(struct auth_context *auth_ctx,
189 TALLOC_CTX *mem_ctx,
190 const struct auth_usersupplied_info *user_info,
191 struct auth_serversupplied_info **server_info);
192
193 NTSTATUS (*get_challenge)(struct auth_context *auth_ctx, const uint8_t **_chal);
194
195 bool (*challenge_may_be_modified)(struct auth_context *auth_ctx);
196
197 NTSTATUS (*set_challenge)(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
198
199 NTSTATUS (*get_server_info_principal)(TALLOC_CTX *mem_ctx,
200 struct auth_context *auth_context,
201 const char *principal,
202 struct auth_serversupplied_info **server_info);
203
204};
205
206/* this structure is used by backends to determine the size of some critical types */
207struct auth_critical_sizes {
208 int interface_version;
209 int sizeof_auth_operations;
210 int sizeof_auth_methods;
211 int sizeof_auth_context;
212 int sizeof_auth_usersupplied_info;
213 int sizeof_auth_serversupplied_info;
214};
215
216 NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context,
217 enum auth_password_state to_state,
218 const struct auth_usersupplied_info *user_info_in,
219 const struct auth_usersupplied_info **user_info_encrypted);
220
221#include "auth/session.h"
222#include "auth/system_session_proto.h"
223
224struct ldb_message;
225struct ldb_context;
226struct ldb_dn;
227struct gensec_security;
228
229NTSTATUS auth_get_challenge(struct auth_context *auth_ctx, const uint8_t **_chal);
230NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
231 struct ldb_context *sam_ctx,
232 uint32_t logon_parameters,
233 struct ldb_dn *domain_dn,
234 struct ldb_message *msg,
235 const char *logon_workstation,
236 const char *name_for_logs,
237 bool allow_domain_trust,
238 bool password_change);
239struct auth_session_info *system_session(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx);
240NTSTATUS authsam_make_server_info(TALLOC_CTX *mem_ctx, struct ldb_context *sam_ctx,
241 const char *netbios_name,
242 const char *domain_name,
243 struct ldb_dn *domain_dn,
244 struct ldb_message *msg,
245 DATA_BLOB user_sess_key, DATA_BLOB lm_sess_key,
246 struct auth_serversupplied_info **_server_info);
247NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx,
248 struct loadparm_context *lp_ctx,
249 struct auth_session_info **_session_info) ;
250NTSTATUS auth_nt_status_squash(NTSTATUS nt_status);
251
252NTSTATUS auth_context_create_methods(TALLOC_CTX *mem_ctx, const char **methods,
253 struct tevent_context *ev,
254 struct messaging_context *msg,
255 struct loadparm_context *lp_ctx,
256 struct auth_context **auth_ctx);
257
258NTSTATUS auth_context_create(TALLOC_CTX *mem_ctx,
259 struct tevent_context *ev,
260 struct messaging_context *msg,
261 struct loadparm_context *lp_ctx,
262 struct auth_context **auth_ctx);
263
264NTSTATUS auth_check_password(struct auth_context *auth_ctx,
265 TALLOC_CTX *mem_ctx,
266 const struct auth_usersupplied_info *user_info,
267 struct auth_serversupplied_info **server_info);
268NTSTATUS auth_init(void);
269NTSTATUS auth_register(const struct auth_operations *ops);
270NTSTATUS authenticate_username_pw(TALLOC_CTX *mem_ctx,
271 struct tevent_context *ev,
272 struct messaging_context *msg,
273 struct loadparm_context *lp_ctx,
274 const char *nt4_domain,
275 const char *nt4_username,
276 const char *password,
277 struct auth_session_info **session_info);
278NTSTATUS auth_check_password_recv(struct auth_check_password_request *req,
279 TALLOC_CTX *mem_ctx,
280 struct auth_serversupplied_info **server_info);
281
282void auth_check_password_send(struct auth_context *auth_ctx,
283 const struct auth_usersupplied_info *user_info,
284 void (*callback)(struct auth_check_password_request *req, void *private_data),
285 void *private_data);
286NTSTATUS auth_context_set_challenge(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
287
288NTSTATUS samba_server_gensec_start(TALLOC_CTX *mem_ctx,
289 struct tevent_context *event_ctx,
290 struct messaging_context *msg_ctx,
291 struct loadparm_context *lp_ctx,
292 struct cli_credentials *server_credentials,
293 const char *target_service,
294 struct gensec_security **gensec_context);
295
296#endif /* _SMBAUTH_H_ */
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