source: trunk/server/source3/winbindd/winbindd.h@ 426

Last change on this file since 426 was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 11.3 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 NTSTATUS (*recv_fn)(struct tevent_req *req,
60 struct winbindd_response *presp);
61 struct winbindd_request *request; /* Request from client */
62 struct tevent_queue *out_queue;
63 struct winbindd_response *response; /* Respose to client */
64 bool getpwent_initialized; /* Has getpwent_state been
65 * initialized? */
66 bool getgrent_initialized; /* Has getgrent_state been
67 * initialized? */
68
69 struct getpwent_state *pwent_state; /* State for getpwent() */
70 struct getgrent_state *grent_state; /* State for getgrent() */
71};
72
73struct getpwent_state {
74 struct winbindd_domain *domain;
75 int next_user;
76 int num_users;
77 struct wbint_userinfo *users;
78};
79
80struct getgrent_state {
81 struct winbindd_domain *domain;
82 int next_group;
83 int num_groups;
84 struct wbint_Principal *groups;
85};
86
87/* Storage for cached getpwent() user entries */
88
89struct getpwent_user {
90 fstring name; /* Account name */
91 fstring gecos; /* User information */
92 fstring homedir; /* User Home Directory */
93 fstring shell; /* User Login Shell */
94 DOM_SID user_sid; /* NT user and primary group SIDs */
95 DOM_SID group_sid;
96};
97
98/* Our connection to the DC */
99
100struct winbindd_cm_conn {
101 struct cli_state *cli;
102
103 struct rpc_pipe_client *samr_pipe;
104 struct policy_handle sam_connect_handle, sam_domain_handle;
105
106 struct rpc_pipe_client *lsa_pipe;
107 struct rpc_pipe_client *lsa_pipe_tcp;
108 struct policy_handle lsa_policy;
109
110 struct rpc_pipe_client *netlogon_pipe;
111};
112
113/* Async child */
114
115struct winbindd_domain;
116
117struct winbindd_child_dispatch_table {
118 const char *name;
119 enum winbindd_cmd struct_cmd;
120 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
121 struct winbindd_cli_state *state);
122};
123
124struct winbindd_child {
125 struct winbindd_child *next, *prev;
126
127 pid_t pid;
128 struct winbindd_domain *domain;
129 char *logfilename;
130
131 int sock;
132 struct tevent_queue *queue;
133 struct rpc_pipe_client *rpccli;
134
135 struct timed_event *lockout_policy_event;
136 struct timed_event *machine_password_change_event;
137
138 const struct winbindd_child_dispatch_table *table;
139};
140
141/* Structures to hold per domain information */
142
143struct winbindd_domain {
144 fstring name; /* Domain name (NetBIOS) */
145 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
146 fstring forest_name; /* Name of the AD forest we're in */
147 DOM_SID sid; /* SID for this domain */
148 uint32 domain_flags; /* Domain flags from netlogon.h */
149 uint32 domain_type; /* Domain type from netlogon.h */
150 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
151 bool initialized; /* Did we already ask for the domain mode? */
152 bool native_mode; /* is this a win2k domain in native mode ? */
153 bool active_directory; /* is this a win2k active directory ? */
154 bool primary; /* is this our primary domain ? */
155 bool internal; /* BUILTIN and member SAM */
156 bool online; /* is this domain available ? */
157 time_t startup_time; /* When we set "startup" true. */
158 bool startup; /* are we in the first 30 seconds after startup_time ? */
159
160 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
161 * of DC we have, let us try to do a
162 * credential-chain less samlogon_ex call
163 * with AD and schannel. If this fails with
164 * DCERPC_FAULT_OP_RNG_ERROR, then set this
165 * to False. This variable is around so that
166 * we don't have to try _ex every time. */
167
168 bool can_do_ncacn_ip_tcp;
169
170 /* Lookup methods for this domain (LDAP or RPC) */
171 struct winbindd_methods *methods;
172
173 /* the backend methods are used by the cache layer to find the right
174 backend */
175 struct winbindd_methods *backend;
176
177 /* Private data for the backends (used for connection cache) */
178
179 void *private_data;
180
181 /*
182 * idmap config settings, used to tell the idmap child which
183 * special domain config to use for a mapping
184 */
185 bool have_idmap_config;
186 uint32_t id_range_low, id_range_high;
187
188 /* A working DC */
189 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
190 fstring dcname;
191 struct sockaddr_storage dcaddr;
192
193 /* Sequence number stuff */
194
195 time_t last_seq_check;
196 uint32 sequence_number;
197 NTSTATUS last_status;
198
199 /* The smb connection */
200
201 struct winbindd_cm_conn conn;
202
203 /* The child pid we're talking to */
204
205 struct winbindd_child child;
206
207 /* Callback we use to try put us back online. */
208
209 uint32 check_online_timeout;
210 struct timed_event *check_online_event;
211
212 /* Linked list info */
213
214 struct winbindd_domain *prev, *next;
215};
216
217/* per-domain methods. This is how LDAP vs RPC is selected
218 */
219struct winbindd_methods {
220 /* does this backend provide a consistent view of the data? (ie. is the primary group
221 always correct) */
222 bool consistent;
223
224 /* get a list of users, returning a wbint_userinfo for each one */
225 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
226 TALLOC_CTX *mem_ctx,
227 uint32 *num_entries,
228 struct wbint_userinfo **info);
229
230 /* get a list of domain groups */
231 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
232 TALLOC_CTX *mem_ctx,
233 uint32 *num_entries,
234 struct acct_info **info);
235
236 /* get a list of domain local groups */
237 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
238 TALLOC_CTX *mem_ctx,
239 uint32 *num_entries,
240 struct acct_info **info);
241
242 /* convert one user or group name to a sid */
243 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
244 TALLOC_CTX *mem_ctx,
245 const char *domain_name,
246 const char *name,
247 uint32_t flags,
248 DOM_SID *sid,
249 enum lsa_SidType *type);
250
251 /* convert a sid to a user or group name */
252 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
253 TALLOC_CTX *mem_ctx,
254 const DOM_SID *sid,
255 char **domain_name,
256 char **name,
257 enum lsa_SidType *type);
258
259 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
260 TALLOC_CTX *mem_ctx,
261 const DOM_SID *domain_sid,
262 uint32 *rids,
263 size_t num_rids,
264 char **domain_name,
265 char ***names,
266 enum lsa_SidType **types);
267
268 /* lookup user info for a given SID */
269 NTSTATUS (*query_user)(struct winbindd_domain *domain,
270 TALLOC_CTX *mem_ctx,
271 const DOM_SID *user_sid,
272 struct wbint_userinfo *user_info);
273
274 /* lookup all groups that a user is a member of. The backend
275 can also choose to lookup by username or rid for this
276 function */
277 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
278 TALLOC_CTX *mem_ctx,
279 const DOM_SID *user_sid,
280 uint32 *num_groups, DOM_SID **user_gids);
281
282 /* Lookup all aliases that the sids delivered are member of. This is
283 * to implement 'domain local groups' correctly */
284 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
285 TALLOC_CTX *mem_ctx,
286 uint32 num_sids,
287 const DOM_SID *sids,
288 uint32 *num_aliases,
289 uint32 **alias_rids);
290
291 /* find all members of the group with the specified group_rid */
292 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
293 TALLOC_CTX *mem_ctx,
294 const DOM_SID *group_sid,
295 enum lsa_SidType type,
296 uint32 *num_names,
297 DOM_SID **sid_mem, char ***names,
298 uint32 **name_types);
299
300 /* return the current global sequence number */
301 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
302
303 /* return the lockout policy */
304 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
305 TALLOC_CTX *mem_ctx,
306 struct samr_DomInfo12 *lockout_policy);
307
308 /* return the lockout policy */
309 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
310 TALLOC_CTX *mem_ctx,
311 struct samr_DomInfo1 *password_policy);
312
313 /* enumerate trusted domains */
314 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
315 TALLOC_CTX *mem_ctx,
316 struct netr_DomainTrustList *trusts);
317};
318
319/* Filled out by IDMAP backends */
320struct winbindd_idmap_methods {
321 /* Called when backend is first loaded */
322 bool (*init)(void);
323
324 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
325 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
326
327 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
328 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
329
330 /* Called when backend is unloaded */
331 bool (*close)(void);
332 /* Called to dump backend status */
333 void (*status)(void);
334};
335
336/* Data structures for dealing with the trusted domain cache */
337
338struct winbindd_tdc_domain {
339 const char *domain_name;
340 const char *dns_name;
341 DOM_SID sid;
342 uint32 trust_flags;
343 uint32 trust_attribs;
344 uint32 trust_type;
345};
346
347/* Switch for listing users or groups */
348enum ent_type {
349 LIST_USERS = 0,
350 LIST_GROUPS,
351};
352
353struct WINBINDD_MEMORY_CREDS {
354 struct WINBINDD_MEMORY_CREDS *next, *prev;
355 const char *username; /* lookup key. */
356 uid_t uid;
357 int ref_count;
358 size_t len;
359 uint8_t *nt_hash; /* Base pointer for the following 2 */
360 uint8_t *lm_hash;
361 char *pass;
362};
363
364struct WINBINDD_CCACHE_ENTRY {
365 struct WINBINDD_CCACHE_ENTRY *next, *prev;
366 const char *principal_name;
367 const char *ccname;
368 const char *service;
369 const char *username;
370 const char *realm;
371 struct WINBINDD_MEMORY_CREDS *cred_ptr;
372 int ref_count;
373 uid_t uid;
374 time_t create_time;
375 time_t renew_until;
376 time_t refresh_time;
377 struct timed_event *event;
378};
379
380#include "winbindd/winbindd_proto.h"
381
382#define WINBINDD_ESTABLISH_LOOP 30
383#define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
384#define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
385#define DOM_SEQUENCE_NONE ((uint32)-1)
386
387#endif /* _WINBINDD_H */
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