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 time_t last_access; /* Time of last access (read or write) */
55 bool privileged; /* Is the client 'privileged' */
57 TALLOC_CTX *mem_ctx; /* memory per request */
58 NTSTATUS (*recv_fn)(struct tevent_req *req,
59 struct winbindd_response *presp);
60 struct winbindd_request *request; /* Request from client */
61 struct tevent_queue *out_queue;
62 struct winbindd_response *response; /* Respose to client */
63 bool getpwent_initialized; /* Has getpwent_state been
65 bool getgrent_initialized; /* Has getgrent_state been
67 struct getent_state *getpwent_state; /* State for getpwent() */
68 struct getent_state *getgrent_state; /* State for getgrent() */
71 /* State between get{pw,gr}ent() calls */
74 struct getent_state *prev, *next;
76 uint32 sam_entry_index, num_sam_entries;
81 /* Storage for cached getpwent() user entries */
83 struct getpwent_user {
84 fstring name; /* Account name */
85 fstring gecos; /* User information */
86 fstring homedir; /* User Home Directory */
87 fstring shell; /* User Login Shell */
88 DOM_SID user_sid; /* NT user and primary group SIDs */
92 /* Server state structure */
99 gid_t primary_gid; /* allow the nss_info
100 backend to set the primary group */
101 DOM_SID user_sid; /* NT user and primary group SIDs */
105 /* Our connection to the DC */
107 struct winbindd_cm_conn {
108 struct cli_state *cli;
110 struct rpc_pipe_client *samr_pipe;
111 struct policy_handle sam_connect_handle, sam_domain_handle;
113 struct rpc_pipe_client *lsa_pipe;
114 struct policy_handle lsa_policy;
116 struct rpc_pipe_client *netlogon_pipe;
119 struct winbindd_async_request;
123 struct winbindd_domain;
125 struct winbindd_child_dispatch_table {
127 enum winbindd_cmd struct_cmd;
128 enum winbindd_result (*struct_fn)(struct winbindd_domain *domain,
129 struct winbindd_cli_state *state);
132 struct winbindd_child {
133 struct winbindd_child *next, *prev;
136 struct winbindd_domain *domain;
140 struct tevent_queue *queue;
142 struct timed_event *lockout_policy_event;
143 struct timed_event *machine_password_change_event;
145 const struct winbindd_child_dispatch_table *table;
148 /* Structures to hold per domain information */
150 struct winbindd_domain {
151 fstring name; /* Domain name (NetBIOS) */
152 fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */
153 fstring forest_name; /* Name of the AD forest we're in */
154 DOM_SID sid; /* SID for this domain */
155 uint32 domain_flags; /* Domain flags from netlogon.h */
156 uint32 domain_type; /* Domain type from netlogon.h */
157 uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */
158 bool initialized; /* Did we already ask for the domain mode? */
159 bool native_mode; /* is this a win2k domain in native mode ? */
160 bool active_directory; /* is this a win2k active directory ? */
161 bool primary; /* is this our primary domain ? */
162 bool internal; /* BUILTIN and member SAM */
163 bool online; /* is this domain available ? */
164 time_t startup_time; /* When we set "startup" true. */
165 bool startup; /* are we in the first 30 seconds after startup_time ? */
167 bool can_do_samlogon_ex; /* Due to the lack of finer control what type
168 * of DC we have, let us try to do a
169 * credential-chain less samlogon_ex call
170 * with AD and schannel. If this fails with
171 * DCERPC_FAULT_OP_RNG_ERROR, then set this
172 * to False. This variable is around so that
173 * we don't have to try _ex every time. */
175 /* Lookup methods for this domain (LDAP or RPC) */
176 struct winbindd_methods *methods;
178 /* the backend methods are used by the cache layer to find the right
180 struct winbindd_methods *backend;
182 /* Private data for the backends (used for connection cache) */
187 * idmap config settings, used to tell the idmap child which
188 * special domain config to use for a mapping
190 bool have_idmap_config;
191 uint32_t id_range_low, id_range_high;
194 pid_t dc_probe_pid; /* Child we're using to detect the DC. */
196 struct sockaddr_storage dcaddr;
198 /* Sequence number stuff */
200 time_t last_seq_check;
201 uint32 sequence_number;
202 NTSTATUS last_status;
204 /* The smb connection */
206 struct winbindd_cm_conn conn;
208 /* The child pid we're talking to */
210 struct winbindd_child child;
212 /* Callback we use to try put us back online. */
214 uint32 check_online_timeout;
215 struct timed_event *check_online_event;
217 /* Linked list info */
219 struct winbindd_domain *prev, *next;
222 /* per-domain methods. This is how LDAP vs RPC is selected
224 struct winbindd_methods {
225 /* does this backend provide a consistent view of the data? (ie. is the primary group
229 /* get a list of users, returning a WINBIND_USERINFO for each one */
230 NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
233 WINBIND_USERINFO **info);
235 /* get a list of domain groups */
236 NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
239 struct acct_info **info);
241 /* get a list of domain local groups */
242 NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
245 struct acct_info **info);
247 /* convert one user or group name to a sid */
248 NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
250 enum winbindd_cmd orig_cmd,
251 const char *domain_name,
254 enum lsa_SidType *type);
256 /* convert a sid to a user or group name */
257 NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
262 enum lsa_SidType *type);
264 NTSTATUS (*rids_to_names)(struct winbindd_domain *domain,
266 const DOM_SID *domain_sid,
271 enum lsa_SidType **types);
273 /* lookup user info for a given SID */
274 NTSTATUS (*query_user)(struct winbindd_domain *domain,
276 const DOM_SID *user_sid,
277 WINBIND_USERINFO *user_info);
279 /* lookup all groups that a user is a member of. The backend
280 can also choose to lookup by username or rid for this
282 NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
284 const DOM_SID *user_sid,
285 uint32 *num_groups, DOM_SID **user_gids);
287 /* Lookup all aliases that the sids delivered are member of. This is
288 * to implement 'domain local groups' correctly */
289 NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain,
294 uint32 **alias_rids);
296 /* find all members of the group with the specified group_rid */
297 NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
299 const DOM_SID *group_sid,
301 DOM_SID **sid_mem, char ***names,
302 uint32 **name_types);
304 /* return the current global sequence number */
305 NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
307 /* return the lockout policy */
308 NTSTATUS (*lockout_policy)(struct winbindd_domain *domain,
310 struct samr_DomInfo12 *lockout_policy);
312 /* return the lockout policy */
313 NTSTATUS (*password_policy)(struct winbindd_domain *domain,
315 struct samr_DomInfo1 *password_policy);
317 /* enumerate trusted domains */
318 NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
326 /* Filled out by IDMAP backends */
327 struct winbindd_idmap_methods {
328 /* Called when backend is first loaded */
331 bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
332 bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
334 bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
335 bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
337 /* Called when backend is unloaded */
339 /* Called to dump backend status */
340 void (*status)(void);
343 /* Data structures for dealing with the trusted domain cache */
345 struct winbindd_tdc_domain {
346 const char *domain_name;
347 const char *dns_name;
350 uint32 trust_attribs;
354 /* Switch for listing users or groups */
360 struct WINBINDD_MEMORY_CREDS {
361 struct WINBINDD_MEMORY_CREDS *next, *prev;
362 const char *username; /* lookup key. */
366 uint8_t *nt_hash; /* Base pointer for the following 2 */
371 struct WINBINDD_CCACHE_ENTRY {
372 struct WINBINDD_CCACHE_ENTRY *next, *prev;
373 const char *principal_name;
376 const char *username;
378 struct WINBINDD_MEMORY_CREDS *cred_ptr;
384 struct timed_event *event;
387 #include "winbindd/winbindd_proto.h"
389 #define WINBINDD_ESTABLISH_LOOP 30
390 #define WINBINDD_RESCAN_FREQ lp_winbind_cache_time()
391 #define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */
392 #define DOM_SEQUENCE_NONE ((uint32)-1)
394 #define IS_DOMAIN_OFFLINE(x) ( lp_winbind_offline_logon() && \
395 ( get_global_winbindd_state_offline() \
397 #define IS_DOMAIN_ONLINE(x) (!IS_DOMAIN_OFFLINE(x))
399 #endif /* _WINBINDD_H */