source: branches/samba-3.3.x/source/winbindd/winbindd.h@ 206

Last change on this file since 206 was 206, checked in by Herwig Bauernfeind, 16 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
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
29#ifdef HAVE_LIBNSCD
30#include <libnscd.h>
31#endif
32
33#ifdef HAVE_SYS_MMAN_H
34#include <sys/mman.h>
35#endif
36
37#undef DBGC_CLASS
38#define DBGC_CLASS DBGC_WINBIND
39
40#define WB_REPLACE_CHAR '_'
41
42struct winbindd_fd_event {
43 struct winbindd_fd_event *next, *prev;
44 int fd;
45 int flags; /* see EVENT_FD_* flags */
46 void (*handler)(struct winbindd_fd_event *fde, int flags);
47 void *data;
48 size_t length, done;
49 void (*finished)(void *private_data, bool success);
50 void *private_data;
51};
52
53struct sid_ctr {
54 DOM_SID *sid;
55 bool finished;
56 const char *domain;
57 const char *name;
58 enum lsa_SidType type;
59};
60
61struct winbindd_cli_state {
62 struct winbindd_cli_state *prev, *next; /* Linked list pointers */
63 int sock; /* Open socket from client */
64 struct winbindd_fd_event fd_event;
65 pid_t pid; /* pid of client */
66 bool finished; /* Can delete from list */
67 bool write_extra_data; /* Write extra_data field */
68 time_t last_access; /* Time of last access (read or write) */
69 bool privileged; /* Is the client 'privileged' */
70
71 TALLOC_CTX *mem_ctx; /* memory per request */
72 struct winbindd_request request; /* Request from client */
73 struct winbindd_response response; /* Respose to client */
74 bool getpwent_initialized; /* Has getpwent_state been
75 * initialized? */
76 bool getgrent_initialized; /* Has getgrent_state been
77 * initialized? */
78 struct getent_state *getpwent_state; /* State for getpwent() */
79 struct getent_state *getgrent_state; /* State for getgrent() */
80};
81
82/* State between get{pw,gr}ent() calls */
83
84struct getent_state {
85 struct getent_state *prev, *next;
86 void *sam_entries;
87 uint32 sam_entry_index, num_sam_entries;
88 bool got_sam_entries;
89 fstring domain_name;
90};
91
92/* Storage for cached getpwent() user entries */
93
94struct getpwent_user {
95 fstring name; /* Account name */
96 fstring gecos; /* User information */
97 fstring homedir; /* User Home Directory */
98 fstring shell; /* User Login Shell */
99 DOM_SID user_sid; /* NT user and primary group SIDs */
100 DOM_SID group_sid;
101};
102
103/* Server state structure */
104
105typedef struct {
106 char *acct_name;
107 char *full_name;
108 char *homedir;
109 char *shell;
110 gid_t primary_gid; /* allow the nss_info
111 backend to set the primary group */
112 DOM_SID user_sid; /* NT user and primary group SIDs */
113 DOM_SID group_sid;
114} WINBIND_USERINFO;
115
116/* Our connection to the DC */
117
118struct winbindd_cm_conn {
119 struct cli_state *cli;
120
121 struct rpc_pipe_client *samr_pipe;
122 POLICY_HND sam_connect_handle, sam_domain_handle;
123
124 struct rpc_pipe_client *lsa_pipe;
125 POLICY_HND lsa_policy;
126
127 struct rpc_pipe_client *netlogon_pipe;
128};
129
130struct winbindd_async_request;
131
132/* Async child */
133
134struct winbindd_domain;
135
136struct winbindd_child_dispatch_table {
137 const char *name;
138 enum winbindd_cmd struct_cmd;
139 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
140 struct winbindd_cli_state *state);
141};
142
143struct winbindd_child {
144 struct winbindd_child *next, *prev;
145
146 pid_t pid;
147 struct winbindd_domain *domain;
148 char *logfilename;
149
150 struct winbindd_fd_event event;
151 struct timed_event *lockout_policy_event;
152 struct timed_event *machine_password_change_event;
153 struct winbindd_async_request *requests;
154
155 const struct winbindd_child_dispatch_table *table;
156};
157
158/* Structures to hold per domain information */
159
160struct winbindd_domain {
161 fstring name; /* Domain name (NetBIOS) */
162 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
163 fstring forest_name; /* Name of the AD forest we're in */
164 DOM_SID sid; /* SID for this domain */
165 uint32 domain_flags; /* Domain flags from netlogon.h */
166 uint32 domain_type; /* Domain type from netlogon.h */
167 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
168 bool initialized; /* Did we already ask for the domain mode? */
169 bool native_mode; /* is this a win2k domain in native mode ? */
170 bool active_directory; /* is this a win2k active directory ? */
171 bool primary; /* is this our primary domain ? */
172 bool internal; /* BUILTIN and member SAM */
173 bool online; /* is this domain available ? */
174 time_t startup_time; /* When we set "startup" true. */
175 bool startup; /* are we in the first 30 seconds after startup_time ? */
176
177 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
178 * of DC we have, let us try to do a
179 * credential-chain less samlogon_ex call
180 * with AD and schannel. If this fails with
181 * DCERPC_FAULT_OP_RNG_ERROR, then set this
182 * to False. This variable is around so that
183 * we don't have to try _ex every time. */
184
185 /* Lookup methods for this domain (LDAP or RPC) */
186 struct winbindd_methods *methods;
187
188 /* the backend methods are used by the cache layer to find the right
189 backend */
190 struct winbindd_methods *backend;
191
192 /* Private data for the backends (used for connection cache) */
193
194 void *private_data;
195
196 /*
197 * idmap config settings, used to tell the idmap child which
198 * special domain config to use for a mapping
199 */
200 bool have_idmap_config;
201 uint32_t id_range_low, id_range_high;
202
203 /* A working DC */
204 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
205 fstring dcname;
206 struct sockaddr_storage dcaddr;
207
208 /* Sequence number stuff */
209
210 time_t last_seq_check;
211 uint32 sequence_number;
212 NTSTATUS last_status;
213
214 /* The smb connection */
215
216 struct winbindd_cm_conn conn;
217
218 /* The child pid we're talking to */
219
220 struct winbindd_child child;
221
222 /* Callback we use to try put us back online. */
223
224 uint32 check_online_timeout;
225 struct timed_event *check_online_event;
226
227 /* Linked list info */
228
229 struct winbindd_domain *prev, *next;
230};
231
232/* per-domain methods. This is how LDAP vs RPC is selected
233 */
234struct winbindd_methods {
235 /* does this backend provide a consistent view of the data? (ie. is the primary group
236 always correct) */
237 bool consistent;
238
239 /* get a list of users, returning a WINBIND_USERINFO for each one */
240 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
241 TALLOC_CTX *mem_ctx,
242 uint32 *num_entries,
243 WINBIND_USERINFO **info);
244
245 /* get a list of domain groups */
246 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
247 TALLOC_CTX *mem_ctx,
248 uint32 *num_entries,
249 struct acct_info **info);
250
251 /* get a list of domain local groups */
252 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
253 TALLOC_CTX *mem_ctx,
254 uint32 *num_entries,
255 struct acct_info **info);
256
257 /* convert one user or group name to a sid */
258 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
259 TALLOC_CTX *mem_ctx,
260 enum winbindd_cmd orig_cmd,
261 const char *domain_name,
262 const char *name,
263 DOM_SID *sid,
264 enum lsa_SidType *type);
265
266 /* convert a sid to a user or group name */
267 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
268 TALLOC_CTX *mem_ctx,
269 const DOM_SID *sid,
270 char **domain_name,
271 char **name,
272 enum lsa_SidType *type);
273
274 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
275 TALLOC_CTX *mem_ctx,
276 const DOM_SID *domain_sid,
277 uint32 *rids,
278 size_t num_rids,
279 char **domain_name,
280 char ***names,
281 enum lsa_SidType **types);
282
283 /* lookup user info for a given SID */
284 NTSTATUS (*query_user)(struct winbindd_domain *domain,
285 TALLOC_CTX *mem_ctx,
286 const DOM_SID *user_sid,
287 WINBIND_USERINFO *user_info);
288
289 /* lookup all groups that a user is a member of. The backend
290 can also choose to lookup by username or rid for this
291 function */
292 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
293 TALLOC_CTX *mem_ctx,
294 const DOM_SID *user_sid,
295 uint32 *num_groups, DOM_SID **user_gids);
296
297 /* Lookup all aliases that the sids delivered are member of. This is
298 * to implement 'domain local groups' correctly */
299 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
300 TALLOC_CTX *mem_ctx,
301 uint32 num_sids,
302 const DOM_SID *sids,
303 uint32 *num_aliases,
304 uint32 **alias_rids);
305
306 /* find all members of the group with the specified group_rid */
307 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
308 TALLOC_CTX *mem_ctx,
309 const DOM_SID *group_sid,
310 uint32 *num_names,
311 DOM_SID **sid_mem, char ***names,
312 uint32 **name_types);
313
314 /* return the current global sequence number */
315 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
316
317 /* return the lockout policy */
318 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
319 TALLOC_CTX *mem_ctx,
320 struct samr_DomInfo12 *lockout_policy);
321
322 /* return the lockout policy */
323 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
324 TALLOC_CTX *mem_ctx,
325 struct samr_DomInfo1 *password_policy);
326
327 /* enumerate trusted domains */
328 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
329 TALLOC_CTX *mem_ctx,
330 uint32 *num_domains,
331 char ***names,
332 char ***alt_names,
333 DOM_SID **dom_sids);
334};
335
336/* Used to glue a policy handle and cli_state together */
337
338typedef struct {
339 struct cli_state *cli;
340 POLICY_HND pol;
341} CLI_POLICY_HND;
342
343/* Filled out by IDMAP backends */
344struct winbindd_idmap_methods {
345 /* Called when backend is first loaded */
346 bool (*init)(void);
347
348 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
349 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
350
351 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
352 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
353
354 /* Called when backend is unloaded */
355 bool (*close)(void);
356 /* Called to dump backend status */
357 void (*status)(void);
358};
359
360/* Data structures for dealing with the trusted domain cache */
361
362struct winbindd_tdc_domain {
363 const char *domain_name;
364 const char *dns_name;
365 DOM_SID sid;
366 uint32 trust_flags;
367 uint32 trust_attribs;
368 uint32 trust_type;
369};
370
371/* Switch for listing users or groups */
372enum ent_type {
373 LIST_USERS = 0,
374 LIST_GROUPS,
375};
376
377struct WINBINDD_MEMORY_CREDS {
378 struct WINBINDD_MEMORY_CREDS *next, *prev;
379 const char *username; /* lookup key. */
380 uid_t uid;
381 int ref_count;
382 size_t len;
383 uint8_t *nt_hash; /* Base pointer for the following 2 */
384 uint8_t *lm_hash;
385 char *pass;
386};
387
388struct WINBINDD_CCACHE_ENTRY {
389 struct WINBINDD_CCACHE_ENTRY *next, *prev;
390 const char *principal_name;
391 const char *ccname;
392 const char *service;
393 const char *username;
394 const char *realm;
395 struct WINBINDD_MEMORY_CREDS *cred_ptr;
396 int ref_count;
397 uid_t uid;
398 time_t create_time;
399 time_t renew_until;
400 time_t refresh_time;
401 struct timed_event *event;
402};
403
404#include "winbindd/winbindd_proto.h"
405
406#define WINBINDD_ESTABLISH_LOOP 30
407#define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
408#define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
409#define DOM_SEQUENCE_NONE ((uint32)-1)
410
411#define IS_DOMAIN_OFFLINE(x) ( lp_winbind_offline_logon() && \
412 ( get_global_winbindd_state_offline() \
413 || !(x)->online ) )
414#define IS_DOMAIN_ONLINE(x) (!IS_DOMAIN_OFFLINE(x))
415
416#endif /* _WINBINDD_H */
Note: See TracBrowser for help on using the repository browser.