source: trunk/server/source4/auth/auth.h

Last change on this file was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 9.4 KB
RevLine 
[745]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#include "librpc/gen_ndr/auth.h"
26#include "../auth/common_auth.h"
27
28extern const char *krbtgt_attrs[];
29extern const char *server_attrs[];
30extern const char *user_attrs[];
31
32union netr_Validation;
33struct netr_SamBaseInfo;
34struct netr_SamInfo3;
35struct loadparm_context;
36
37/* modules can use the following to determine if the interface has changed
38 * please increment the version number after each interface change
39 * with a comment and maybe update struct auth_critical_sizes.
40 */
41/* version 1 - version from samba 3.0 - metze */
42/* version 2 - initial samba4 version - metze */
43/* version 3 - subsequent samba4 version - abartlet */
44/* version 4 - subsequent samba4 version - metze */
45/* version 0 - till samba4 is stable - metze */
46#define AUTH_INTERFACE_VERSION 0
47
48#define AUTH_SESSION_INFO_DEFAULT_GROUPS 0x01 /* Add the user to the default world and network groups */
49#define AUTH_SESSION_INFO_AUTHENTICATED 0x02 /* Add the user to the 'authenticated users' group */
50#define AUTH_SESSION_INFO_SIMPLE_PRIVILEGES 0x04 /* Use a trivial map between users and privilages, rather than a DB */
51
52struct auth_method_context;
53struct auth_check_password_request;
54struct auth_context;
55struct auth_session_info;
56struct ldb_dn;
57
58struct auth_operations {
59 const char *name;
60
61 /* If you are using this interface, then you are probably
62 * getting something wrong. This interface is only for
63 * security=server, and makes a number of compromises to allow
64 * that. It is not compatible with being a PDC. */
65
66 NTSTATUS (*get_challenge)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, uint8_t chal[8]);
67
68 /* Given the user supplied info, check if this backend want to handle the password checking */
69
70 NTSTATUS (*want_check)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
71 const struct auth_usersupplied_info *user_info);
72
73 /* Given the user supplied info, check a password */
74
75 NTSTATUS (*check_password)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
76 const struct auth_usersupplied_info *user_info,
77 struct auth_user_info_dc **interim_info);
78
79 /* Lookup a 'session info interim' return based only on the principal or DN */
80 NTSTATUS (*get_user_info_dc_principal)(TALLOC_CTX *mem_ctx,
81 struct auth_context *auth_context,
82 const char *principal,
83 struct ldb_dn *user_dn,
84 struct auth_user_info_dc **interim_info);
85};
86
87struct auth_method_context {
88 struct auth_method_context *prev, *next;
89 struct auth_context *auth_ctx;
90 const struct auth_operations *ops;
91 int depth;
92 void *private_data;
93};
94
95struct auth_context {
96 struct {
97 /* Who set this up in the first place? */
98 const char *set_by;
99
100 bool may_be_modified;
101
102 DATA_BLOB data;
103 } challenge;
104
105 /* methods, in the order they should be called */
106 struct auth_method_context *methods;
107
108 /* the event context to use for calls that can block */
109 struct tevent_context *event_ctx;
110
111 /* the messaging context which can be used by backends */
112 struct messaging_context *msg_ctx;
113
114 /* loadparm context */
115 struct loadparm_context *lp_ctx;
116
117 /* SAM database for this local machine - to fill in local groups, or to authenticate local NTLM users */
118 struct ldb_context *sam_ctx;
119
120 NTSTATUS (*check_password)(struct auth_context *auth_ctx,
121 TALLOC_CTX *mem_ctx,
122 const struct auth_usersupplied_info *user_info,
123 struct auth_user_info_dc **user_info_dc);
124
125 NTSTATUS (*get_challenge)(struct auth_context *auth_ctx, uint8_t chal[8]);
126
127 bool (*challenge_may_be_modified)(struct auth_context *auth_ctx);
128
129 NTSTATUS (*set_challenge)(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
130
131 NTSTATUS (*get_user_info_dc_principal)(TALLOC_CTX *mem_ctx,
132 struct auth_context *auth_ctx,
133 const char *principal,
134 struct ldb_dn *user_dn,
135 struct auth_user_info_dc **user_info_dc);
136
137 NTSTATUS (*generate_session_info)(TALLOC_CTX *mem_ctx,
138 struct auth_context *auth_context,
139 struct auth_user_info_dc *user_info_dc,
140 uint32_t session_info_flags,
141 struct auth_session_info **session_info);
142};
143
144/* this structure is used by backends to determine the size of some critical types */
145struct auth_critical_sizes {
146 int interface_version;
147 int sizeof_auth_operations;
148 int sizeof_auth_methods;
149 int sizeof_auth_context;
150 int sizeof_auth_usersupplied_info;
151 int sizeof_auth_user_info_dc;
152};
153
154 NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context,
155 enum auth_password_state to_state,
156 const struct auth_usersupplied_info *user_info_in,
157 const struct auth_usersupplied_info **user_info_encrypted);
158
159#include "auth/session.h"
160#include "auth/system_session_proto.h"
161#include "libcli/security/security.h"
162
163struct ldb_message;
164struct ldb_context;
165struct gensec_security;
166struct cli_credentials;
167
168NTSTATUS auth_get_challenge(struct auth_context *auth_ctx, uint8_t chal[8]);
169NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
170 struct ldb_context *sam_ctx,
171 uint32_t logon_parameters,
172 struct ldb_dn *domain_dn,
173 struct ldb_message *msg,
174 const char *logon_workstation,
175 const char *name_for_logs,
176 bool allow_domain_trust,
177 bool password_change);
178NTSTATUS authsam_expand_nested_groups(struct ldb_context *sam_ctx,
179 struct ldb_val *dn_val, const bool only_childs, const char *filter,
180 TALLOC_CTX *res_sids_ctx, struct dom_sid ***res_sids,
181 unsigned int *num_res_sids);
182struct auth_session_info *system_session(struct loadparm_context *lp_ctx);
183NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx, struct ldb_context *sam_ctx,
184 const char *netbios_name,
185 const char *domain_name,
186 struct ldb_dn *domain_dn,
187 struct ldb_message *msg,
188 DATA_BLOB user_sess_key, DATA_BLOB lm_sess_key,
189 struct auth_user_info_dc **_user_info_dc);
190NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx,
191 struct loadparm_context *lp_ctx,
192 struct auth_session_info **_session_info) ;
193
194NTSTATUS auth_context_create_methods(TALLOC_CTX *mem_ctx, const char **methods,
195 struct tevent_context *ev,
196 struct messaging_context *msg,
197 struct loadparm_context *lp_ctx,
198 struct ldb_context *sam_ctx,
199 struct auth_context **auth_ctx);
200const char **auth_methods_from_lp(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx);
201
202NTSTATUS auth_context_create(TALLOC_CTX *mem_ctx,
203 struct tevent_context *ev,
204 struct messaging_context *msg,
205 struct loadparm_context *lp_ctx,
206 struct auth_context **auth_ctx);
207NTSTATUS auth_context_create_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, struct auth_context **auth_ctx);
208
209NTSTATUS auth_check_password(struct auth_context *auth_ctx,
210 TALLOC_CTX *mem_ctx,
211 const struct auth_usersupplied_info *user_info,
212 struct auth_user_info_dc **user_info_dc);
213NTSTATUS auth4_init(void);
214NTSTATUS auth_register(const struct auth_operations *ops);
215NTSTATUS server_service_auth_init(void);
216NTSTATUS authenticate_username_pw(TALLOC_CTX *mem_ctx,
217 struct tevent_context *ev,
218 struct messaging_context *msg,
219 struct loadparm_context *lp_ctx,
220 const char *nt4_domain,
221 const char *nt4_username,
222 const char *password,
223 const uint32_t logon_parameters,
224 struct auth_session_info **session_info);
225
226struct tevent_req *auth_check_password_send(TALLOC_CTX *mem_ctx,
227 struct tevent_context *ev,
228 struct auth_context *auth_ctx,
229 const struct auth_usersupplied_info *user_info);
230NTSTATUS auth_check_password_recv(struct tevent_req *req,
231 TALLOC_CTX *mem_ctx,
232 struct auth_user_info_dc **user_info_dc);
233
234bool auth_challenge_may_be_modified(struct auth_context *auth_ctx);
235NTSTATUS auth_context_set_challenge(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
236
237NTSTATUS auth_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
238 struct auth_context *auth_ctx,
239 const char *principal,
240 struct ldb_dn *user_dn,
241 struct auth_user_info_dc **user_info_dc);
242
243NTSTATUS samba_server_gensec_start(TALLOC_CTX *mem_ctx,
244 struct tevent_context *event_ctx,
245 struct messaging_context *msg_ctx,
246 struct loadparm_context *lp_ctx,
247 struct cli_credentials *server_credentials,
248 const char *target_service,
249 struct gensec_security **gensec_context);
250
251#endif /* _SMBAUTH_H_ */
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