source: branches/samba-3.2.x/source/winbindd/winbindd.h@ 791

Last change on this file since 791 was 138, checked in by Paul Smedley, 17 years ago

Update source to 3.2.0 GA level
File size: 11.7 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
28#ifdef HAVE_LIBNSCD
29#include <libnscd.h>
30#endif
31
32#ifdef HAVE_SYS_MMAN_H
33#include <sys/mman.h>
34#endif
35
36#undef DBGC_CLASS
37#define DBGC_CLASS DBGC_WINBIND
38
39#define WB_REPLACE_CHAR '_'
40
41/* bits for fd_event.flags */
42#define EVENT_FD_READ 1
43#define EVENT_FD_WRITE 2
44
45struct fd_event {
46 struct fd_event *next, *prev;
47 int fd;
48 int flags; /* see EVENT_FD_* flags */
49 void (*handler)(struct fd_event *fde, int flags);
50 void *data;
51 size_t length, done;
52 void (*finished)(void *private_data, bool success);
53 void *private_data;
54};
55
56struct sid_ctr {
57 DOM_SID *sid;
58 bool finished;
59 const char *domain;
60 const char *name;
61 enum lsa_SidType type;
62};
63
64struct winbindd_cli_state {
65 struct winbindd_cli_state *prev, *next; /* Linked list pointers */
66 int sock; /* Open socket from client */
67 struct fd_event fd_event;
68 pid_t pid; /* pid of client */
69 bool finished; /* Can delete from list */
70 bool write_extra_data; /* Write extra_data field */
71 time_t last_access; /* Time of last access (read or write) */
72 bool privileged; /* Is the client 'privileged' */
73
74 TALLOC_CTX *mem_ctx; /* memory per request */
75 struct winbindd_request request; /* Request from client */
76 struct winbindd_response response; /* Respose to client */
77 bool getpwent_initialized; /* Has getpwent_state been
78 * initialized? */
79 bool getgrent_initialized; /* Has getgrent_state been
80 * initialized? */
81 struct getent_state *getpwent_state; /* State for getpwent() */
82 struct getent_state *getgrent_state; /* State for getgrent() */
83};
84
85/* State between get{pw,gr}ent() calls */
86
87struct getent_state {
88 struct getent_state *prev, *next;
89 void *sam_entries;
90 uint32 sam_entry_index, num_sam_entries;
91 bool got_sam_entries;
92 fstring domain_name;
93};
94
95/* Storage for cached getpwent() user entries */
96
97struct getpwent_user {
98 fstring name; /* Account name */
99 fstring gecos; /* User information */
100 fstring homedir; /* User Home Directory */
101 fstring shell; /* User Login Shell */
102 DOM_SID user_sid; /* NT user and primary group SIDs */
103 DOM_SID group_sid;
104};
105
106/* Server state structure */
107
108typedef struct {
109 char *acct_name;
110 char *full_name;
111 char *homedir;
112 char *shell;
113 gid_t primary_gid; /* allow the nss_info
114 backend to set the primary group */
115 DOM_SID user_sid; /* NT user and primary group SIDs */
116 DOM_SID group_sid;
117} WINBIND_USERINFO;
118
119/* Our connection to the DC */
120
121struct winbindd_cm_conn {
122 struct cli_state *cli;
123
124 struct rpc_pipe_client *samr_pipe;
125 POLICY_HND sam_connect_handle, sam_domain_handle;
126
127 struct rpc_pipe_client *lsa_pipe;
128 POLICY_HND lsa_policy;
129
130 struct rpc_pipe_client *netlogon_pipe;
131};
132
133struct winbindd_async_request;
134
135/* Async child */
136
137struct winbindd_domain;
138
139struct winbindd_child_dispatch_table {
140 const char *name;
141 enum winbindd_cmd struct_cmd;
142 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
143 struct winbindd_cli_state *state);
144};
145
146struct winbindd_child {
147 struct winbindd_child *next, *prev;
148
149 pid_t pid;
150 struct winbindd_domain *domain;
151 char *logfilename;
152
153 struct fd_event event;
154 struct timed_event *lockout_policy_event;
155 struct winbindd_async_request *requests;
156
157 const struct winbindd_child_dispatch_table *table;
158};
159
160/* Structures to hold per domain information */
161
162struct winbindd_domain {
163 fstring name; /* Domain name (NetBIOS) */
164 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
165 fstring forest_name; /* Name of the AD forest we're in */
166 DOM_SID sid; /* SID for this domain */
167 uint32 domain_flags; /* Domain flags from netlogon.h */
168 uint32 domain_type; /* Domain type from netlogon.h */
169 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
170 bool initialized; /* Did we already ask for the domain mode? */
171 bool native_mode; /* is this a win2k domain in native mode ? */
172 bool active_directory; /* is this a win2k active directory ? */
173 bool primary; /* is this our primary domain ? */
174 bool internal; /* BUILTIN and member SAM */
175 bool online; /* is this domain available ? */
176 time_t startup_time; /* When we set "startup" true. */
177 bool startup; /* are we in the first 30 seconds after startup_time ? */
178
179 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
180 * of DC we have, let us try to do a
181 * credential-chain less samlogon_ex call
182 * with AD and schannel. If this fails with
183 * DCERPC_FAULT_OP_RNG_ERROR, then set this
184 * to False. This variable is around so that
185 * we don't have to try _ex every time. */
186
187 /* Lookup methods for this domain (LDAP or RPC) */
188 struct winbindd_methods *methods;
189
190 /* the backend methods are used by the cache layer to find the right
191 backend */
192 struct winbindd_methods *backend;
193
194 /* Private data for the backends (used for connection cache) */
195
196 void *private_data;
197
198 /* A working DC */
199 fstring dcname;
200 struct sockaddr_storage dcaddr;
201
202 /* Sequence number stuff */
203
204 time_t last_seq_check;
205 uint32 sequence_number;
206 NTSTATUS last_status;
207
208 /* The smb connection */
209
210 struct winbindd_cm_conn conn;
211
212 /* The child pid we're talking to */
213
214 struct winbindd_child child;
215
216 /* Callback we use to try put us back online. */
217
218 uint32 check_online_timeout;
219 struct timed_event *check_online_event;
220
221 /* Linked list info */
222
223 struct winbindd_domain *prev, *next;
224};
225
226/* per-domain methods. This is how LDAP vs RPC is selected
227 */
228struct winbindd_methods {
229 /* does this backend provide a consistent view of the data? (ie. is the primary group
230 always correct) */
231 bool consistent;
232
233 /* get a list of users, returning a WINBIND_USERINFO for each one */
234 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
235 TALLOC_CTX *mem_ctx,
236 uint32 *num_entries,
237 WINBIND_USERINFO **info);
238
239 /* get a list of domain groups */
240 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
241 TALLOC_CTX *mem_ctx,
242 uint32 *num_entries,
243 struct acct_info **info);
244
245 /* get a list of domain local groups */
246 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
247 TALLOC_CTX *mem_ctx,
248 uint32 *num_entries,
249 struct acct_info **info);
250
251 /* convert one user or group name to a sid */
252 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
253 TALLOC_CTX *mem_ctx,
254 enum winbindd_cmd orig_cmd,
255 const char *domain_name,
256 const char *name,
257 DOM_SID *sid,
258 enum lsa_SidType *type);
259
260 /* convert a sid to a user or group name */
261 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
262 TALLOC_CTX *mem_ctx,
263 const DOM_SID *sid,
264 char **domain_name,
265 char **name,
266 enum lsa_SidType *type);
267
268 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
269 TALLOC_CTX *mem_ctx,
270 const DOM_SID *domain_sid,
271 uint32 *rids,
272 size_t num_rids,
273 char **domain_name,
274 char ***names,
275 enum lsa_SidType **types);
276
277 /* lookup user info for a given SID */
278 NTSTATUS (*query_user)(struct winbindd_domain *domain,
279 TALLOC_CTX *mem_ctx,
280 const DOM_SID *user_sid,
281 WINBIND_USERINFO *user_info);
282
283 /* lookup all groups that a user is a member of. The backend
284 can also choose to lookup by username or rid for this
285 function */
286 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
287 TALLOC_CTX *mem_ctx,
288 const DOM_SID *user_sid,
289 uint32 *num_groups, DOM_SID **user_gids);
290
291 /* Lookup all aliases that the sids delivered are member of. This is
292 * to implement 'domain local groups' correctly */
293 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
294 TALLOC_CTX *mem_ctx,
295 uint32 num_sids,
296 const DOM_SID *sids,
297 uint32 *num_aliases,
298 uint32 **alias_rids);
299
300 /* find all members of the group with the specified group_rid */
301 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
302 TALLOC_CTX *mem_ctx,
303 const DOM_SID *group_sid,
304 uint32 *num_names,
305 DOM_SID **sid_mem, char ***names,
306 uint32 **name_types);
307
308 /* return the current global sequence number */
309 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
310
311 /* return the lockout policy */
312 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
313 TALLOC_CTX *mem_ctx,
314 struct samr_DomInfo12 *lockout_policy);
315
316 /* return the lockout policy */
317 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
318 TALLOC_CTX *mem_ctx,
319 struct samr_DomInfo1 *password_policy);
320
321 /* enumerate trusted domains */
322 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
323 TALLOC_CTX *mem_ctx,
324 uint32 *num_domains,
325 char ***names,
326 char ***alt_names,
327 DOM_SID **dom_sids);
328};
329
330/* Used to glue a policy handle and cli_state together */
331
332typedef struct {
333 struct cli_state *cli;
334 POLICY_HND pol;
335} CLI_POLICY_HND;
336
337/* Filled out by IDMAP backends */
338struct winbindd_idmap_methods {
339 /* Called when backend is first loaded */
340 bool (*init)(void);
341
342 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
343 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
344
345 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
346 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
347
348 /* Called when backend is unloaded */
349 bool (*close)(void);
350 /* Called to dump backend status */
351 void (*status)(void);
352};
353
354/* Data structures for dealing with the trusted domain cache */
355
356struct winbindd_tdc_domain {
357 const char *domain_name;
358 const char *dns_name;
359 DOM_SID sid;
360 uint32 trust_flags;
361 uint32 trust_attribs;
362 uint32 trust_type;
363};
364
365/* Switch for listing users or groups */
366enum ent_type {
367 LIST_USERS = 0,
368 LIST_GROUPS,
369};
370
371#include "winbindd/winbindd_proto.h"
372
373#define WINBINDD_ESTABLISH_LOOP 30
374#define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
375#define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
376#define DOM_SEQUENCE_NONE ((uint32)-1)
377
378#define IS_DOMAIN_OFFLINE(x) ( lp_winbind_offline_logon() && \
379 ( get_global_winbindd_state_offline() \
380 || !(x)->online ) )
381#endif /* _WINBINDD_H */
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