2 Unix SMB/CIFS implementation.
4 Winbind daemon for ntdom nss module
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
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.
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.
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/>.
26 #include "nsswitch/winbind_struct_protocol.h"
27 #include "nsswitch/libwbclient/wbclient.h"
33 #ifdef HAVE_SYS_MMAN_H
38 #define DBGC_CLASS DBGC_WINBIND
40 #define WB_REPLACE_CHAR '_'
47 enum lsa_SidType type;
50 struct winbindd_cli_state {
51 struct winbindd_cli_state *prev, *next; /* Linked list pointers */
52 int sock; /* Open socket from client */
53 pid_t pid; /* pid of client */
54 bool finished; /* Can delete from list */
55 bool write_extra_data; /* Write extra_data field */
56 time_t last_access; /* Time of last access (read or write) */
57 bool privileged; /* Is the client 'privileged' */
59 TALLOC_CTX *mem_ctx; /* memory per request */
60 NTSTATUS (*recv_fn)(struct tevent_req *req, TALLOC_CTX *mem_ctx,
61 struct winbindd_response **presp);
62 struct winbindd_request *request; /* Request from client */
63 struct winbindd_request _request;
64 struct tevent_queue *out_queue;
65 struct winbindd_response response; /* Respose to client */
66 bool getpwent_initialized; /* Has getpwent_state been
68 bool getgrent_initialized; /* Has getgrent_state been
70 struct getent_state *getpwent_state; /* State for getpwent() */
71 struct getent_state *getgrent_state; /* State for getgrent() */
74 /* State between get{pw,gr}ent() calls */
77 struct getent_state *prev, *next;
79 uint32 sam_entry_index, num_sam_entries;
84 /* Storage for cached getpwent() user entries */
86 struct getpwent_user {
87 fstring name; /* Account name */
88 fstring gecos; /* User information */
89 fstring homedir; /* User Home Directory */
90 fstring shell; /* User Login Shell */
91 DOM_SID user_sid; /* NT user and primary group SIDs */
95 /* Server state structure */
102 gid_t primary_gid; /* allow the nss_info
103 backend to set the primary group */
104 DOM_SID user_sid; /* NT user and primary group SIDs */
108 /* Our connection to the DC */
110 struct winbindd_cm_conn {
111 struct cli_state *cli;
113 struct rpc_pipe_client *samr_pipe;
114 struct policy_handle sam_connect_handle, sam_domain_handle;
116 struct rpc_pipe_client *lsa_pipe;
117 struct policy_handle lsa_policy;
119 struct rpc_pipe_client *netlogon_pipe;
122 struct winbindd_async_request;
126 struct winbindd_domain;
128 struct winbindd_child_dispatch_table {
130 enum winbindd_cmd struct_cmd;
131 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
132 struct winbindd_cli_state *state);
135 struct winbindd_child {
136 struct winbindd_child *next, *prev;
139 struct winbindd_domain *domain;
143 struct tevent_queue *queue;
145 struct timed_event *lockout_policy_event;
146 struct timed_event *machine_password_change_event;
148 const struct winbindd_child_dispatch_table *table;
151 /* Structures to hold per domain information */
153 struct winbindd_domain {
154 fstring name; /* Domain name (NetBIOS) */
155 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
156 fstring forest_name; /* Name of the AD forest we're in */
157 DOM_SID sid; /* SID for this domain */
158 uint32 domain_flags; /* Domain flags from netlogon.h */
159 uint32 domain_type; /* Domain type from netlogon.h */
160 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
161 bool initialized; /* Did we already ask for the domain mode? */
162 bool native_mode; /* is this a win2k domain in native mode ? */
163 bool active_directory; /* is this a win2k active directory ? */
164 bool primary; /* is this our primary domain ? */
165 bool internal; /* BUILTIN and member SAM */
166 bool online; /* is this domain available ? */
167 time_t startup_time; /* When we set "startup" true. */
168 bool startup; /* are we in the first 30 seconds after startup_time ? */
170 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
171 * of DC we have, let us try to do a
172 * credential-chain less samlogon_ex call
173 * with AD and schannel. If this fails with
174 * DCERPC_FAULT_OP_RNG_ERROR, then set this
175 * to False. This variable is around so that
176 * we don't have to try _ex every time. */
178 /* Lookup methods for this domain (LDAP or RPC) */
179 struct winbindd_methods *methods;
181 /* the backend methods are used by the cache layer to find the right
183 struct winbindd_methods *backend;
185 /* Private data for the backends (used for connection cache) */
190 * idmap config settings, used to tell the idmap child which
191 * special domain config to use for a mapping
193 bool have_idmap_config;
194 uint32_t id_range_low, id_range_high;
197 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
199 struct sockaddr_storage dcaddr;
201 /* Sequence number stuff */
203 time_t last_seq_check;
204 uint32 sequence_number;
205 NTSTATUS last_status;
207 /* The smb connection */
209 struct winbindd_cm_conn conn;
211 /* The child pid we're talking to */
213 struct winbindd_child child;
215 /* Callback we use to try put us back online. */
217 uint32 check_online_timeout;
218 struct timed_event *check_online_event;
220 /* Linked list info */
222 struct winbindd_domain *prev, *next;
225 /* per-domain methods. This is how LDAP vs RPC is selected
227 struct winbindd_methods {
228 /* does this backend provide a consistent view of the data? (ie. is the primary group
232 /* get a list of users, returning a WINBIND_USERINFO for each one */
233 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
236 WINBIND_USERINFO **info);
238 /* get a list of domain groups */
239 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
242 struct acct_info **info);
244 /* get a list of domain local groups */
245 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
248 struct acct_info **info);
250 /* convert one user or group name to a sid */
251 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
253 enum winbindd_cmd orig_cmd,
254 const char *domain_name,
257 enum lsa_SidType *type);
259 /* convert a sid to a user or group name */
260 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
265 enum lsa_SidType *type);
267 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
269 const DOM_SID *domain_sid,
274 enum lsa_SidType **types);
276 /* lookup user info for a given SID */
277 NTSTATUS (*query_user)(struct winbindd_domain *domain,
279 const DOM_SID *user_sid,
280 WINBIND_USERINFO *user_info);
282 /* lookup all groups that a user is a member of. The backend
283 can also choose to lookup by username or rid for this
285 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
287 const DOM_SID *user_sid,
288 uint32 *num_groups, DOM_SID **user_gids);
290 /* Lookup all aliases that the sids delivered are member of. This is
291 * to implement 'domain local groups' correctly */
292 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
297 uint32 **alias_rids);
299 /* find all members of the group with the specified group_rid */
300 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
302 const DOM_SID *group_sid,
304 DOM_SID **sid_mem, char ***names,
305 uint32 **name_types);
307 /* return the current global sequence number */
308 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
310 /* return the lockout policy */
311 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
313 struct samr_DomInfo12 *lockout_policy);
315 /* return the lockout policy */
316 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
318 struct samr_DomInfo1 *password_policy);
320 /* enumerate trusted domains */
321 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
329 /* Filled out by IDMAP backends */
330 struct winbindd_idmap_methods {
331 /* Called when backend is first loaded */
334 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
335 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
337 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
338 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
340 /* Called when backend is unloaded */
342 /* Called to dump backend status */
343 void (*status)(void);
346 /* Data structures for dealing with the trusted domain cache */
348 struct winbindd_tdc_domain {
349 const char *domain_name;
350 const char *dns_name;
353 uint32 trust_attribs;
357 /* Switch for listing users or groups */
363 struct WINBINDD_MEMORY_CREDS {
364 struct WINBINDD_MEMORY_CREDS *next, *prev;
365 const char *username; /* lookup key. */
369 uint8_t *nt_hash; /* Base pointer for the following 2 */
374 struct WINBINDD_CCACHE_ENTRY {
375 struct WINBINDD_CCACHE_ENTRY *next, *prev;
376 const char *principal_name;
379 const char *username;
381 struct WINBINDD_MEMORY_CREDS *cred_ptr;
387 struct timed_event *event;
390 #include "winbindd/winbindd_proto.h"
392 #define WINBINDD_ESTABLISH_LOOP 30
393 #define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
394 #define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
395 #define DOM_SEQUENCE_NONE ((uint32)-1)
397 #define IS_DOMAIN_OFFLINE(x) ( lp_winbind_offline_logon() && \
398 ( get_global_winbindd_state_offline() \
400 #define IS_DOMAIN_ONLINE(x) (!IS_DOMAIN_OFFLINE(x))
402 #endif /* _WINBINDD_H */