source: vendor/current/source3/winbindd/winbindd.h

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 11.4 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/dcerpc.h"
29#include "librpc/gen_ndr/winbind.h"
30
31#include "talloc_dict.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 struct tevent_req *io_req; /* wb_req_read_* or wb_resp_write_* */
71
72 struct getpwent_state *pwent_state; /* State for getpwent() */
73 struct getgrent_state *grent_state; /* State for getgrent() */
74};
75
76struct getpwent_state {
77 struct winbindd_domain *domain;
78 int next_user;
79 int num_users;
80 struct wbint_userinfo *users;
81};
82
83struct getgrent_state {
84 struct winbindd_domain *domain;
85 int next_group;
86 int num_groups;
87 struct wbint_Principal *groups;
88};
89
90/* Storage for cached getpwent() user entries */
91
92struct getpwent_user {
93 fstring name; /* Account name */
94 fstring gecos; /* User information */
95 fstring homedir; /* User Home Directory */
96 fstring shell; /* User Login Shell */
97 struct dom_sid user_sid; /* NT user and primary group SIDs */
98 struct dom_sid group_sid;
99};
100
101/* Our connection to the DC */
102
103struct winbindd_cm_conn {
104 struct cli_state *cli;
105
106 enum dcerpc_AuthLevel auth_level;
107
108 struct rpc_pipe_client *samr_pipe;
109 struct policy_handle sam_connect_handle, sam_domain_handle;
110
111 struct rpc_pipe_client *lsa_pipe;
112 struct rpc_pipe_client *lsa_pipe_tcp;
113 struct policy_handle lsa_policy;
114
115 struct rpc_pipe_client *netlogon_pipe;
116 struct netlogon_creds_cli_context *netlogon_creds;
117 uint32_t netlogon_flags;
118 bool netlogon_force_reauth;
119};
120
121/* Async child */
122
123struct winbindd_domain;
124
125struct winbindd_child_dispatch_table {
126 const char *name;
127 enum winbindd_cmd struct_cmd;
128 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
129 struct winbindd_cli_state *state);
130};
131
132struct winbindd_child {
133 struct winbindd_child *next, *prev;
134
135 pid_t pid;
136 struct winbindd_domain *domain;
137 char *logfilename;
138
139 int sock;
140 struct tevent_queue *queue;
141 struct dcerpc_binding_handle *binding_handle;
142
143 struct tevent_timer *lockout_policy_event;
144 struct tevent_timer *machine_password_change_event;
145
146 const struct winbindd_child_dispatch_table *table;
147};
148
149/* Structures to hold per domain information */
150
151struct winbindd_domain {
152 char *name; /* Domain name (NetBIOS) */
153 char *alt_name; /* alt Domain name, if any (FQDN for ADS) */
154 char *forest_name; /* Name of the AD forest we're in */
155 struct dom_sid sid; /* SID for this domain */
156 uint32_t domain_flags; /* Domain flags from netlogon.h */
157 uint32_t domain_type; /* Domain type from netlogon.h */
158 uint32_t domain_trust_attribs; /* Trust attribs from netlogon.h */
159 bool initialized; /* Did we already ask for the domain mode? */
160 bool native_mode; /* is this a win2k domain in native mode ? */
161 bool active_directory; /* is this a win2k active directory ? */
162 bool primary; /* is this our primary domain ? */
163 bool internal; /* BUILTIN and member SAM */
164 bool rodc; /* Are we an RODC for this AD domain? (do some operations locally) */
165 bool online; /* is this domain available ? */
166 time_t startup_time; /* When we set "startup" true. monotonic clock */
167 bool startup; /* are we in the first 30 seconds after startup_time ? */
168
169 bool can_do_ncacn_ip_tcp;
170
171 /* Lookup methods for this domain (LDAP or RPC) */
172 struct winbindd_methods *methods;
173
174 /* the backend methods are used by the cache layer to find the right
175 backend */
176 struct winbindd_methods *backend;
177
178 /* Private data for the backends (used for connection cache) */
179
180 void *private_data;
181
182 /* A working DC */
183 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
184 char *dcname;
185 struct sockaddr_storage dcaddr;
186
187 /* Sequence number stuff */
188
189 time_t last_seq_check;
190 uint32_t sequence_number;
191 NTSTATUS last_status;
192
193 /* The smb connection */
194
195 struct winbindd_cm_conn conn;
196
197 /* The child pid we're talking to */
198
199 struct winbindd_child *children;
200
201 /* Callback we use to try put us back online. */
202
203 uint32_t check_online_timeout;
204 struct tevent_timer *check_online_event;
205
206 /* Linked list info */
207
208 struct winbindd_domain *prev, *next;
209};
210
211struct wb_acct_info {
212 fstring acct_name; /* account name */
213 fstring acct_desc; /* account name */
214 uint32_t rid; /* domain-relative RID */
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_t *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_t *num_entries,
234 struct wb_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_t *num_entries,
240 struct wb_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 struct 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 struct 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 struct dom_sid *domain_sid,
262 uint32_t *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 struct 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 struct dom_sid *user_sid,
280 uint32_t *num_groups, struct 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_t num_sids,
287 const struct dom_sid *sids,
288 uint32_t *num_aliases,
289 uint32_t **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 struct dom_sid *group_sid,
295 enum lsa_SidType type,
296 uint32_t *num_names,
297 struct dom_sid **sid_mem, char ***names,
298 uint32_t **name_types);
299
300 /* return the current global sequence number */
301 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32_t *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, struct dom_sid *sid);
325 bool (*get_sid_from_gid)(gid_t gid, struct dom_sid *sid);
326
327 bool (*get_uid_from_sid)(struct dom_sid *sid, uid_t *uid);
328 bool (*get_gid_from_sid)(struct 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 struct dom_sid sid;
342 uint32_t trust_flags;
343 uint32_t trust_attribs;
344 uint32_t 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 tevent_timer *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_t)-1)
386
387#endif /* _WINBINDD_H */
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