source: trunk/server/source3/winbindd/winbindd.h@ 707

Last change on this file since 707 was 596, checked in by Herwig Bauernfeind, 14 years ago

Samba 3.5: Update trunk to 3.5.8
File size: 11.8 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Winbind daemon for ntdom nss module
5
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 3 of the License, or (at your option) any later version.
13
14 This library 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 GNU
17 Library General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#ifndef _WINBINDD_H
24#define _WINBINDD_H
25
26#include "nsswitch/winbind_struct_protocol.h"
27#include "nsswitch/libwbclient/wbclient.h"
28#include "librpc/gen_ndr/wbint.h"
29
30#ifdef HAVE_LIBNSCD
31#include <libnscd.h>
32#endif
33
34#ifdef HAVE_SYS_MMAN_H
35#include <sys/mman.h>
36#endif
37
38#undef DBGC_CLASS
39#define DBGC_CLASS DBGC_WINBIND
40
41#define WB_REPLACE_CHAR '_'
42
43struct sid_ctr {
44 DOM_SID *sid;
45 bool finished;
46 const char *domain;
47 const char *name;
48 enum lsa_SidType type;
49};
50
51struct winbindd_cli_state {
52 struct winbindd_cli_state *prev, *next; /* Linked list pointers */
53 int sock; /* Open socket from client */
54 pid_t pid; /* pid of client */
55 time_t last_access; /* Time of last access (read or write) */
56 bool privileged; /* Is the client 'privileged' */
57
58 TALLOC_CTX *mem_ctx; /* memory per request */
59 const char *cmd_name;
60 NTSTATUS (*recv_fn)(struct tevent_req *req,
61 struct winbindd_response *presp);
62 struct winbindd_request *request; /* Request from client */
63 struct tevent_queue *out_queue;
64 struct winbindd_response *response; /* Respose to client */
65 bool getpwent_initialized; /* Has getpwent_state been
66 * initialized? */
67 bool getgrent_initialized; /* Has getgrent_state been
68 * initialized? */
69
70 struct getpwent_state *pwent_state; /* State for getpwent() */
71 struct getgrent_state *grent_state; /* State for getgrent() */
72};
73
74struct getpwent_state {
75 struct winbindd_domain *domain;
76 int next_user;
77 int num_users;
78 struct wbint_userinfo *users;
79};
80
81struct getgrent_state {
82 struct winbindd_domain *domain;
83 int next_group;
84 int num_groups;
85 struct wbint_Principal *groups;
86};
87
88/* Storage for cached getpwent() user entries */
89
90struct getpwent_user {
91 fstring name; /* Account name */
92 fstring gecos; /* User information */
93 fstring homedir; /* User Home Directory */
94 fstring shell; /* User Login Shell */
95 DOM_SID user_sid; /* NT user and primary group SIDs */
96 DOM_SID group_sid;
97};
98
99/* Our connection to the DC */
100
101struct winbindd_cm_conn {
102 struct cli_state *cli;
103
104 struct rpc_pipe_client *samr_pipe;
105 struct policy_handle sam_connect_handle, sam_domain_handle;
106
107 struct rpc_pipe_client *lsa_pipe;
108 struct rpc_pipe_client *lsa_pipe_tcp;
109 struct policy_handle lsa_policy;
110
111 struct rpc_pipe_client *netlogon_pipe;
112};
113
114/* Async child */
115
116struct winbindd_domain;
117
118struct winbindd_child_dispatch_table {
119 const char *name;
120 enum winbindd_cmd struct_cmd;
121 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
122 struct winbindd_cli_state *state);
123};
124
125struct winbindd_child {
126 struct winbindd_child *next, *prev;
127
128 pid_t pid;
129 struct winbindd_domain *domain;
130 char *logfilename;
131
132 int sock;
133 struct tevent_queue *queue;
134 struct rpc_pipe_client *rpccli;
135
136 struct timed_event *lockout_policy_event;
137 struct timed_event *machine_password_change_event;
138
139 const struct winbindd_child_dispatch_table *table;
140};
141
142/* Structures to hold per domain information */
143
144struct winbindd_domain {
145 fstring name; /* Domain name (NetBIOS) */
146 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
147 fstring forest_name; /* Name of the AD forest we're in */
148 DOM_SID sid; /* SID for this domain */
149 uint32 domain_flags; /* Domain flags from netlogon.h */
150 uint32 domain_type; /* Domain type from netlogon.h */
151 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
152 bool initialized; /* Did we already ask for the domain mode? */
153 bool native_mode; /* is this a win2k domain in native mode ? */
154 bool active_directory; /* is this a win2k active directory ? */
155 bool primary; /* is this our primary domain ? */
156 bool internal; /* BUILTIN and member SAM */
157 bool online; /* is this domain available ? */
158 time_t startup_time; /* When we set "startup" true. */
159 bool startup; /* are we in the first 30 seconds after startup_time ? */
160
161 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
162 * of DC we have, let us try to do a
163 * credential-chain less samlogon_ex call
164 * with AD and schannel. If this fails with
165 * DCERPC_FAULT_OP_RNG_ERROR, then set this
166 * to False. This variable is around so that
167 * we don't have to try _ex every time. */
168
169 bool can_do_ncacn_ip_tcp;
170 bool can_do_validation6;
171
172 /* Lookup methods for this domain (LDAP or RPC) */
173 struct winbindd_methods *methods;
174
175 /* the backend methods are used by the cache layer to find the right
176 backend */
177 struct winbindd_methods *backend;
178
179 /* Private data for the backends (used for connection cache) */
180
181 void *private_data;
182
183 /*
184 * idmap config settings, used to tell the idmap child which
185 * special domain config to use for a mapping
186 */
187 bool have_idmap_config;
188 uint32_t id_range_low, id_range_high;
189
190 /* A working DC */
191 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
192 fstring dcname;
193 struct sockaddr_storage dcaddr;
194
195 /* Sequence number stuff */
196
197 time_t last_seq_check;
198 uint32 sequence_number;
199 NTSTATUS last_status;
200
201 /* The smb connection */
202
203 struct winbindd_cm_conn conn;
204
205 /* The child pid we're talking to */
206
207 struct winbindd_child child;
208
209 /* Callback we use to try put us back online. */
210
211 uint32 check_online_timeout;
212 struct timed_event *check_online_event;
213
214 /* Linked list info */
215
216 struct winbindd_domain *prev, *next;
217};
218
219/* per-domain methods. This is how LDAP vs RPC is selected
220 */
221struct winbindd_methods {
222 /* does this backend provide a consistent view of the data? (ie. is the primary group
223 always correct) */
224 bool consistent;
225
226 /* get a list of users, returning a wbint_userinfo for each one */
227 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
228 TALLOC_CTX *mem_ctx,
229 uint32 *num_entries,
230 struct wbint_userinfo **info);
231
232 /* get a list of domain groups */
233 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
234 TALLOC_CTX *mem_ctx,
235 uint32 *num_entries,
236 struct acct_info **info);
237
238 /* get a list of domain local groups */
239 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
240 TALLOC_CTX *mem_ctx,
241 uint32 *num_entries,
242 struct acct_info **info);
243
244 /* convert one user or group name to a sid */
245 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
246 TALLOC_CTX *mem_ctx,
247 const char *domain_name,
248 const char *name,
249 uint32_t flags,
250 DOM_SID *sid,
251 enum lsa_SidType *type);
252
253 /* convert a sid to a user or group name */
254 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
255 TALLOC_CTX *mem_ctx,
256 const DOM_SID *sid,
257 char **domain_name,
258 char **name,
259 enum lsa_SidType *type);
260
261 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
262 TALLOC_CTX *mem_ctx,
263 const DOM_SID *domain_sid,
264 uint32 *rids,
265 size_t num_rids,
266 char **domain_name,
267 char ***names,
268 enum lsa_SidType **types);
269
270 /* lookup user info for a given SID */
271 NTSTATUS (*query_user)(struct winbindd_domain *domain,
272 TALLOC_CTX *mem_ctx,
273 const DOM_SID *user_sid,
274 struct wbint_userinfo *user_info);
275
276 /* lookup all groups that a user is a member of. The backend
277 can also choose to lookup by username or rid for this
278 function */
279 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
280 TALLOC_CTX *mem_ctx,
281 const DOM_SID *user_sid,
282 uint32 *num_groups, DOM_SID **user_gids);
283
284 /* Lookup all aliases that the sids delivered are member of. This is
285 * to implement 'domain local groups' correctly */
286 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
287 TALLOC_CTX *mem_ctx,
288 uint32 num_sids,
289 const DOM_SID *sids,
290 uint32 *num_aliases,
291 uint32 **alias_rids);
292
293 /* find all members of the group with the specified group_rid */
294 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
295 TALLOC_CTX *mem_ctx,
296 const DOM_SID *group_sid,
297 enum lsa_SidType type,
298 uint32 *num_names,
299 DOM_SID **sid_mem, char ***names,
300 uint32 **name_types);
301
302 /* return the current global sequence number */
303 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
304
305 /* return the lockout policy */
306 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
307 TALLOC_CTX *mem_ctx,
308 struct samr_DomInfo12 *lockout_policy);
309
310 /* return the lockout policy */
311 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
312 TALLOC_CTX *mem_ctx,
313 struct samr_DomInfo1 *password_policy);
314
315 /* enumerate trusted domains */
316 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
317 TALLOC_CTX *mem_ctx,
318 struct netr_DomainTrustList *trusts);
319};
320
321/* Filled out by IDMAP backends */
322struct winbindd_idmap_methods {
323 /* Called when backend is first loaded */
324 bool (*init)(void);
325
326 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
327 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
328
329 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
330 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
331
332 /* Called when backend is unloaded */
333 bool (*close)(void);
334 /* Called to dump backend status */
335 void (*status)(void);
336};
337
338/* Data structures for dealing with the trusted domain cache */
339
340struct winbindd_tdc_domain {
341 const char *domain_name;
342 const char *dns_name;
343 DOM_SID sid;
344 uint32 trust_flags;
345 uint32 trust_attribs;
346 uint32 trust_type;
347};
348
349/* Switch for listing users or groups */
350enum ent_type {
351 LIST_USERS = 0,
352 LIST_GROUPS,
353};
354
355struct WINBINDD_MEMORY_CREDS {
356 struct WINBINDD_MEMORY_CREDS *next, *prev;
357 const char *username; /* lookup key. */
358 uid_t uid;
359 int ref_count;
360 size_t len;
361 uint8_t *nt_hash; /* Base pointer for the following 2 */
362 uint8_t *lm_hash;
363 char *pass;
364};
365
366struct WINBINDD_CCACHE_ENTRY {
367 struct WINBINDD_CCACHE_ENTRY *next, *prev;
368 const char *principal_name;
369 const char *ccname;
370 const char *service;
371 const char *username;
372 const char *realm;
373 struct WINBINDD_MEMORY_CREDS *cred_ptr;
374 int ref_count;
375 uid_t uid;
376 time_t create_time;
377 time_t renew_until;
378 time_t refresh_time;
379 struct timed_event *event;
380};
381
382#include "winbindd/winbindd_proto.h"
383
384#define WINBINDD_ESTABLISH_LOOP 30
385#define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
386#define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
387#define DOM_SEQUENCE_NONE ((uint32)-1)
388
389#endif /* _WINBINDD_H */
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