source: trunk/server/source3/winbindd/winbindd.h@ 1012

Last change on this file since 1012 was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 12.2 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#include "talloc_dict.h"
31#include "smb_ldap.h"
32
33#include "../lib/util/tevent_ntstatus.h"
34
35#ifdef HAVE_LIBNSCD
36#include <libnscd.h>
37#endif
38
39#ifdef HAVE_SYS_MMAN_H
40#include <sys/mman.h>
41#endif
42
43#undef DBGC_CLASS
44#define DBGC_CLASS DBGC_WINBIND
45
46#define WB_REPLACE_CHAR '_'
47
48struct sid_ctr {
49 struct dom_sid *sid;
50 bool finished;
51 const char *domain;
52 const char *name;
53 enum lsa_SidType type;
54};
55
56struct winbindd_cli_state {
57 struct winbindd_cli_state *prev, *next; /* Linked list pointers */
58 int sock; /* Open socket from client */
59 pid_t pid; /* pid of client */
60 time_t last_access; /* Time of last access (read or write) */
61 bool privileged; /* Is the client 'privileged' */
62
63 TALLOC_CTX *mem_ctx; /* memory per request */
64 const char *cmd_name;
65 NTSTATUS (*recv_fn)(struct tevent_req *req,
66 struct winbindd_response *presp);
67 struct winbindd_request *request; /* Request from client */
68 struct tevent_queue *out_queue;
69 struct winbindd_response *response; /* Respose to client */
70 bool getpwent_initialized; /* Has getpwent_state been
71 * initialized? */
72 bool getgrent_initialized; /* Has getgrent_state been
73 * initialized? */
74
75 struct getpwent_state *pwent_state; /* State for getpwent() */
76 struct getgrent_state *grent_state; /* State for getgrent() */
77};
78
79struct getpwent_state {
80 struct winbindd_domain *domain;
81 int next_user;
82 int num_users;
83 struct wbint_userinfo *users;
84};
85
86struct getgrent_state {
87 struct winbindd_domain *domain;
88 int next_group;
89 int num_groups;
90 struct wbint_Principal *groups;
91};
92
93/* Storage for cached getpwent() user entries */
94
95struct getpwent_user {
96 fstring name; /* Account name */
97 fstring gecos; /* User information */
98 fstring homedir; /* User Home Directory */
99 fstring shell; /* User Login Shell */
100 struct dom_sid user_sid; /* NT user and primary group SIDs */
101 struct dom_sid group_sid;
102};
103
104/* Our connection to the DC */
105
106struct winbindd_cm_conn {
107 struct cli_state *cli;
108
109 struct rpc_pipe_client *samr_pipe;
110 struct policy_handle sam_connect_handle, sam_domain_handle;
111
112 struct rpc_pipe_client *lsa_pipe;
113 struct rpc_pipe_client *lsa_pipe_tcp;
114 struct policy_handle lsa_policy;
115
116 struct rpc_pipe_client *netlogon_pipe;
117};
118
119/* Async child */
120
121struct winbindd_domain;
122
123struct winbindd_child_dispatch_table {
124 const char *name;
125 enum winbindd_cmd struct_cmd;
126 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
127 struct winbindd_cli_state *state);
128};
129
130struct winbindd_child {
131 struct winbindd_child *next, *prev;
132
133 pid_t pid;
134 struct winbindd_domain *domain;
135 char *logfilename;
136
137 int sock;
138 struct tevent_queue *queue;
139 struct dcerpc_binding_handle *binding_handle;
140
141 struct timed_event *lockout_policy_event;
142 struct timed_event *machine_password_change_event;
143
144 const struct winbindd_child_dispatch_table *table;
145};
146
147/* Structures to hold per domain information */
148
149struct winbindd_domain {
150 fstring name; /* Domain name (NetBIOS) */
151 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
152 fstring forest_name; /* Name of the AD forest we're in */
153 struct dom_sid sid; /* SID for this domain */
154 uint32 domain_flags; /* Domain flags from netlogon.h */
155 uint32 domain_type; /* Domain type from netlogon.h */
156 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
157 bool initialized; /* Did we already ask for the domain mode? */
158 bool native_mode; /* is this a win2k domain in native mode ? */
159 bool active_directory; /* is this a win2k active directory ? */
160 bool primary; /* is this our primary domain ? */
161 bool internal; /* BUILTIN and member SAM */
162 bool online; /* is this domain available ? */
163 time_t startup_time; /* When we set "startup" true. monotonic clock */
164 bool startup; /* are we in the first 30 seconds after startup_time ? */
165
166 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
167 * of DC we have, let us try to do a
168 * credential-chain less samlogon_ex call
169 * with AD and schannel. If this fails with
170 * DCERPC_FAULT_OP_RNG_ERROR, then set this
171 * to False. This variable is around so that
172 * we don't have to try _ex every time. */
173
174 bool can_do_ncacn_ip_tcp;
175 bool can_do_validation6;
176
177 /* Lookup methods for this domain (LDAP or RPC) */
178 struct winbindd_methods *methods;
179
180 /* the backend methods are used by the cache layer to find the right
181 backend */
182 struct winbindd_methods *backend;
183
184 /* Private data for the backends (used for connection cache) */
185
186 void *private_data;
187
188 /*
189 * idmap config settings, used to tell the idmap child which
190 * special domain config to use for a mapping
191 */
192 bool have_idmap_config;
193 uint32_t id_range_low, id_range_high;
194
195 /* A working DC */
196 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
197 fstring dcname;
198 struct sockaddr_storage dcaddr;
199
200 /* Sequence number stuff */
201
202 time_t last_seq_check;
203 uint32 sequence_number;
204 NTSTATUS last_status;
205
206 /* The smb connection */
207
208 struct winbindd_cm_conn conn;
209
210 /* The child pid we're talking to */
211
212 struct winbindd_child *children;
213
214 /* Callback we use to try put us back online. */
215
216 uint32 check_online_timeout;
217 struct timed_event *check_online_event;
218
219 /* Linked list info */
220
221 struct winbindd_domain *prev, *next;
222};
223
224struct wb_acct_info {
225 fstring acct_name; /* account name */
226 fstring acct_desc; /* account name */
227 uint32_t rid; /* domain-relative RID */
228};
229
230/* per-domain methods. This is how LDAP vs RPC is selected
231 */
232struct winbindd_methods {
233 /* does this backend provide a consistent view of the data? (ie. is the primary group
234 always correct) */
235 bool consistent;
236
237 /* get a list of users, returning a wbint_userinfo for each one */
238 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
239 TALLOC_CTX *mem_ctx,
240 uint32 *num_entries,
241 struct wbint_userinfo **info);
242
243 /* get a list of domain groups */
244 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
245 TALLOC_CTX *mem_ctx,
246 uint32 *num_entries,
247 struct wb_acct_info **info);
248
249 /* get a list of domain local groups */
250 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
251 TALLOC_CTX *mem_ctx,
252 uint32 *num_entries,
253 struct wb_acct_info **info);
254
255 /* convert one user or group name to a sid */
256 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
257 TALLOC_CTX *mem_ctx,
258 const char *domain_name,
259 const char *name,
260 uint32_t flags,
261 struct dom_sid *sid,
262 enum lsa_SidType *type);
263
264 /* convert a sid to a user or group name */
265 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
266 TALLOC_CTX *mem_ctx,
267 const struct dom_sid *sid,
268 char **domain_name,
269 char **name,
270 enum lsa_SidType *type);
271
272 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
273 TALLOC_CTX *mem_ctx,
274 const struct dom_sid *domain_sid,
275 uint32 *rids,
276 size_t num_rids,
277 char **domain_name,
278 char ***names,
279 enum lsa_SidType **types);
280
281 /* lookup user info for a given SID */
282 NTSTATUS (*query_user)(struct winbindd_domain *domain,
283 TALLOC_CTX *mem_ctx,
284 const struct dom_sid *user_sid,
285 struct wbint_userinfo *user_info);
286
287 /* lookup all groups that a user is a member of. The backend
288 can also choose to lookup by username or rid for this
289 function */
290 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
291 TALLOC_CTX *mem_ctx,
292 const struct dom_sid *user_sid,
293 uint32 *num_groups, struct dom_sid **user_gids);
294
295 /* Lookup all aliases that the sids delivered are member of. This is
296 * to implement 'domain local groups' correctly */
297 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
298 TALLOC_CTX *mem_ctx,
299 uint32 num_sids,
300 const struct dom_sid *sids,
301 uint32 *num_aliases,
302 uint32 **alias_rids);
303
304 /* find all members of the group with the specified group_rid */
305 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
306 TALLOC_CTX *mem_ctx,
307 const struct dom_sid *group_sid,
308 enum lsa_SidType type,
309 uint32 *num_names,
310 struct dom_sid **sid_mem, char ***names,
311 uint32 **name_types);
312
313 /* return the current global sequence number */
314 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
315
316 /* return the lockout policy */
317 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
318 TALLOC_CTX *mem_ctx,
319 struct samr_DomInfo12 *lockout_policy);
320
321 /* return the lockout policy */
322 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
323 TALLOC_CTX *mem_ctx,
324 struct samr_DomInfo1 *password_policy);
325
326 /* enumerate trusted domains */
327 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
328 TALLOC_CTX *mem_ctx,
329 struct netr_DomainTrustList *trusts);
330};
331
332/* Filled out by IDMAP backends */
333struct winbindd_idmap_methods {
334 /* Called when backend is first loaded */
335 bool (*init)(void);
336
337 bool (*get_sid_from_uid)(uid_t uid, struct dom_sid *sid);
338 bool (*get_sid_from_gid)(gid_t gid, struct dom_sid *sid);
339
340 bool (*get_uid_from_sid)(struct dom_sid *sid, uid_t *uid);
341 bool (*get_gid_from_sid)(struct dom_sid *sid, gid_t *gid);
342
343 /* Called when backend is unloaded */
344 bool (*close)(void);
345 /* Called to dump backend status */
346 void (*status)(void);
347};
348
349/* Data structures for dealing with the trusted domain cache */
350
351struct winbindd_tdc_domain {
352 const char *domain_name;
353 const char *dns_name;
354 struct dom_sid sid;
355 uint32 trust_flags;
356 uint32 trust_attribs;
357 uint32 trust_type;
358};
359
360/* Switch for listing users or groups */
361enum ent_type {
362 LIST_USERS = 0,
363 LIST_GROUPS,
364};
365
366struct WINBINDD_MEMORY_CREDS {
367 struct WINBINDD_MEMORY_CREDS *next, *prev;
368 const char *username; /* lookup key. */
369 uid_t uid;
370 int ref_count;
371 size_t len;
372 uint8_t *nt_hash; /* Base pointer for the following 2 */
373 uint8_t *lm_hash;
374 char *pass;
375};
376
377struct WINBINDD_CCACHE_ENTRY {
378 struct WINBINDD_CCACHE_ENTRY *next, *prev;
379 const char *principal_name;
380 const char *ccname;
381 const char *service;
382 const char *username;
383 const char *realm;
384 struct WINBINDD_MEMORY_CREDS *cred_ptr;
385 int ref_count;
386 uid_t uid;
387 time_t create_time;
388 time_t renew_until;
389 time_t refresh_time;
390 struct timed_event *event;
391};
392
393#include "winbindd/winbindd_proto.h"
394
395#define WINBINDD_ESTABLISH_LOOP 30
396#define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
397#define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
398#define DOM_SEQUENCE_NONE ((uint32)-1)
399
400#define winbind_event_context server_event_context
401
402#endif /* _WINBINDD_H */
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