1 /* Copyright (C) 1997, 1998, 1999, 2006, 2007, 2009
2    Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4    Contributed by Thorsten Kukuk <[email protected]>, 1997.
5 
6    The GNU C Library is free software; you can redistribute it and/or
7    modify it under the terms of the GNU Lesser General Public
8    License as published by the Free Software Foundation; either
9    version 2.1 of the License, or (at your option) any later version.
10 
11    The GNU C Library is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14    Lesser General Public License for more details.
15 
16    You should have received a copy of the GNU Lesser General Public
17    License along with the GNU C Library; if not, see
18    <http://www.gnu.org/licenses/>.  */
19 
20 #ifndef	__RPCSVC_NISLIB_H__
21 #define	__RPCSVC_NISLIB_H__
22 
23 #include <features.h>
24 
25 __BEGIN_DECLS
26 
27 typedef const char *const_nis_name;
28 
29 /* nis_names: These functions are used to locate and manipulate all NIS+
30  * objects except the NIS+ entry objects.
31  *
32  * nis_lookup (name, flags) resolves a NIS+ name and returns a copy of
33  *                          that object  from a NIS+ server.
34  *    const nis_name name: name of the object to be resolved
35  *    unsigned int flags: logically ORing zero or more flags (FOLLOW_LINKS,
36  *                          HARD_LOOKUP, [NO_CACHE], MASTER_ONLY, EXPAND_NAME)
37  *
38  * nis_add (name, obj) adds objects to the NIS+ namespace.
39  *    const nis_name name: fully qualified NIS+ name.
40  *    const nis_object *obj: object members zo_name and zo_domain will be
41  *                           constructed from name.
42  *
43  * nis_remove (name, obj) removes objects from the NIS+ namespace.
44  *    const nis_name name: fully qualified NIS+ name.
45  *    const nis_object *obj: if not NULL, it is assumed to point to a copy
46  *                           of the object being removed. In this case, if
47  *                           the object on the server does not have the same
48  *                           object identifier as the  object  being  passed,
49  *                           the operation will fail with the NIS_NOTSAMEOBJ
50  *                           error.
51  *
52  * nis_modify (name, obj) can change specific attributes of an object
53  *                        that already exists in the namespace.
54  */
55 extern nis_result *nis_lookup (const_nis_name name, unsigned int flags)
56      __THROW;
57 extern nis_result *nis_add (const_nis_name name, const nis_object *obj)
58      __THROW;
59 extern nis_result *nis_remove (const_nis_name name,
60 			       const nis_object *obj) __THROW;
61 extern nis_result *nis_modify (const_nis_name name,
62 			       const nis_object *obj) __THROW;
63 
64 /* nis_tables: These functions are used to search and modify NIS+ tables.
65  *
66  * nis_list (table_name, flags, callback(table_name, obj, userdata), userdata)
67  *           search a table in the NIS+ namespace.
68  *    const nis_name table_name: indexed name ([xx=yy],table.dir)
69  *    unsigned int flags: logically ORing one or more flags (FOLLOW_LINKS,
70  *                      [FOLLOW_PATH], HARD_LOOKUP, [ALL_RESULTS], [NO_CACHE],
71  *                      MASTER_ONLY, EXPAND_NAME, RETURN_RESULT)
72  *    callback(): callback is an optional pointer to a function that will
73  *                process the ENTRY type objects that are returned from the
74  *                search. If this pointer is NULL, then all entries that match
75  *                the search criteria are returned in the nis_result structure,
76  *                otherwise  this  function  will  be  called once for each
77  *                entry returned.
78  *    void *userdata: passed to callback function along with the returned
79  *                    entry object.
80  *
81  * nis_add_entry (table_name, obj, flags) will add the NIS+ object to the
82  *                                        NIS+ table_name.
83  *    const nis_name table_name
84  *    const nis_object *obj
85  *    unsigned int flags: 0, ADD_OVERWRITE, RETURN_RESULT
86  *
87  * nis_modify_entry (name, obj, flags) modifies an object identified by name.
88  *    const nis_name name: object identifier
89  *    const nis_object *obj: should point to an entry with the EN_MODIFIED
90  *                           flag set in each column that contains new
91  *                           information.
92  *    unsigned int flags: 0, MOD_SAMEOBJ, RETURN_RESULT
93  *
94  * nis_remove_entry (table_name, obj, flags) removes a set of entries
95  *                                 identified by table_name from the table.
96  *    const nis_name table_name: indexed NIS+ name
97  *    const nis_object *obj: if obj is non-null, it is presumed to point to
98  *                           a cached copy of the entry. When the removal is
99  *                           attempted, and the object that would be removed
100  *                           is not the same as the cached object pointed to
101  *                           by object then the operation will fail with an
102  *                           NIS_NOTSAMEOBJ error
103  *    unsigned int flags: 0, REM_MULTIPLE
104  *
105  * nis_first_entry (table_name) fetches entries from a table one at a time.
106  *    const nis_name table_name
107  *
108  * nis_next_entry (table_name, cookie) retrieves the "next" entry from a
109  *                                     table specified by table_name.
110  *    const nis_name table_name:
111  *    const netobj *cookie: The value of cookie from the nis_result structure
112  *                          form the previous call.
113  */
114 extern nis_result *nis_list (const_nis_name __name, unsigned int __flags,
115 			     int (*__callback)(const_nis_name __table_name,
116 					       const nis_object *__obj,
117 					       const void *__userdata),
118 			     const void *__userdata) __THROW;
119 extern nis_result *nis_add_entry (const_nis_name __table_name,
120 				  const nis_object *__obj,
121 				  unsigned int __flags) __THROW;
122 extern nis_result *nis_modify_entry (const_nis_name __name,
123 				     const nis_object *__obj,
124 				     unsigned int __flags) __THROW;
125 extern nis_result *nis_remove_entry (const_nis_name __table_name,
126 				     const nis_object *__obj,
127 				     unsigned int __flags) __THROW;
128 extern nis_result *nis_first_entry (const_nis_name __table_name) __THROW;
129 extern nis_result *nis_next_entry (const_nis_name __table_name,
130 				   const netobj *__cookie) __THROW;
131 /*
132 ** nis_server
133 */
134 extern nis_error nis_mkdir (const_nis_name __dirname,
135 			    const nis_server *__machine) __THROW;
136 extern nis_error nis_rmdir (const_nis_name __dirname,
137 			    const nis_server *__machine) __THROW;
138 extern nis_error nis_servstate (const nis_server *__machine,
139 				const nis_tag *__tags, int __numtags,
140 				nis_tag **__result) __THROW;
141 extern nis_error nis_stats (const nis_server *__machine,
142 			    const nis_tag *__tags, int __numtags,
143 			    nis_tag **__result) __THROW;
144 extern void nis_freetags (nis_tag *__tags, int __numtags) __THROW;
145 extern nis_server **nis_getservlist (const_nis_name __dirname) __THROW;
146 extern void nis_freeservlist (nis_server **__machines) __THROW;
147 
148 /*
149 ** nis_subr
150 */
151 extern nis_name nis_leaf_of (const_nis_name __name) __THROW;
152 extern nis_name nis_leaf_of_r (const_nis_name __name, char *__buffer,
153 			       size_t __buflen) __THROW;
154 extern nis_name nis_name_of (const_nis_name __name) __THROW;
155 extern nis_name nis_name_of_r (const_nis_name __name, char *__buffer,
156 			       size_t __buflen) __THROW;
157 extern nis_name nis_domain_of (const_nis_name __name) __THROW;
158 extern nis_name nis_domain_of_r (const_nis_name __name, char *__buffer,
159 				 size_t __buflen) __THROW;
160 extern nis_name *nis_getnames (const_nis_name __name) __THROW;
161 extern void nis_freenames (nis_name *__namelist) __THROW;
162 extern name_pos nis_dir_cmp (const_nis_name __n1, const_nis_name __n2) __THROW;
163 extern nis_object *nis_clone_object (const nis_object *__src,
164 				     nis_object *__dest) __THROW;
165 extern void nis_destroy_object (nis_object *__obj) __THROW;
166 extern void nis_print_object (const nis_object *__obj) __THROW;
167 
168 /*
169 ** nis_local_names
170 */
171 extern nis_name nis_local_group (void) __THROW;
172 extern nis_name nis_local_directory (void) __THROW;
173 extern nis_name nis_local_principal (void) __THROW;
174 extern nis_name nis_local_host (void) __THROW;
175 
176 /*
177 ** nis_error
178 */
179 extern const char *nis_sperrno (const nis_error __status) __THROW;
180 extern void nis_perror (const nis_error __status, const char *__label) __THROW;
181 extern void nis_lerror (const nis_error __status, const char *__label) __THROW;
182 extern char *nis_sperror (const nis_error status, const char *__label) __THROW;
183 extern char *nis_sperror_r (const nis_error __status, const char *__label,
184 			    char *__buffer, size_t __buflen) __THROW;
185 /*
186 ** nis_groups
187 */
188 extern bool_t nis_ismember (const_nis_name __principal,
189 			    const_nis_name __group) __THROW;
190 extern nis_error nis_addmember (const_nis_name __member,
191 				const_nis_name __group) __THROW;
192 extern nis_error nis_removemember (const_nis_name __member,
193 				   const_nis_name __group) __THROW;
194 extern nis_error nis_creategroup (const_nis_name __group,
195 				  unsigned int __flags) __THROW;
196 extern nis_error nis_destroygroup (const_nis_name __group) __THROW;
197 extern void nis_print_group_entry (const_nis_name __group) __THROW;
198 extern nis_error nis_verifygroup (const_nis_name __group) __THROW;
199 
200 /*
201 ** nis_ping
202 */
203 extern void nis_ping (const_nis_name __dirname, uint32_t __utime,
204 		      const nis_object *__dirobj) __THROW;
205 extern nis_result *nis_checkpoint (const_nis_name __dirname) __THROW;
206 
207 /*
208 ** nis_print (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
209 */
210 extern void nis_print_result (const nis_result *__result) __THROW;
211 extern void nis_print_rights (unsigned int __rights) __THROW;
212 extern void nis_print_directory (const directory_obj *__dirobj) __THROW;
213 extern void nis_print_group (const group_obj *__grpobj) __THROW;
214 extern void nis_print_table (const table_obj *__tblobj) __THROW;
215 extern void nis_print_link (const link_obj *__lnkobj) __THROW;
216 extern void nis_print_entry (const entry_obj *__enobj) __THROW;
217 
218 /*
219 ** nis_file (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
220 */
221 extern directory_obj *readColdStartFile (void) __THROW;
222 extern bool_t writeColdStartFile (const directory_obj *__dirobj) __THROW;
223 extern nis_object *nis_read_obj (const char *__obj) __THROW;
224 extern bool_t nis_write_obj (const char *__file, const nis_object *__obj) __THROW;
225 
226 /*
227 ** nis_clone - (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!)
228 */
229 extern directory_obj *nis_clone_directory (const directory_obj *__src,
230 					   directory_obj *__dest) __THROW;
231 extern nis_result *nis_clone_result (const nis_result *__src,
232 				     nis_result *__dest) __THROW;
233 
234 /* nis_free - nis_freeresult */
235 extern void nis_freeresult (nis_result *__result) __THROW;
236 /* (XXX THE FOLLOWING ARE INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
237 extern void nis_free_request (ib_request *__req) __THROW;
238 extern void nis_free_directory (directory_obj *__dirobj) __THROW;
239 extern void nis_free_object (nis_object *__obj) __THROW;
240 
241 /* (XXX INTERNAL FUNCTIONS, SHOULD NOT BE USED !!) */
242 extern nis_name __nis_default_owner (char *) __THROW;
243 extern nis_name __nis_default_group (char *) __THROW;
244 extern uint32_t __nis_default_ttl (char *) __THROW;
245 extern unsigned int __nis_default_access (char *, unsigned int) __THROW;
246 extern fd_result *__nis_finddirectory (directory_obj *, const_nis_name) __THROW;
247 extern void __free_fdresult (fd_result *) __THROW;
248 extern uint32_t __nis_hash (const void *__keyarg, size_t __len) __THROW;
249 
250 /* NIS+ cache locking */
251 extern int __nis_lock_cache (void) __THROW;
252 extern int __nis_unlock_cache (void) __THROW;
253 
254 /* (XXX INTERNAL FUNCTIONS, ONLY FOR rpc.nisd AND glibc !!) */
255 #if defined (NIS_INTERNAL) || defined (_LIBC)
256 
257 struct dir_binding
258 {
259   CLIENT *clnt;                  /* RPC CLIENT handle */
260   nis_server *server_val;        /* List of servers */
261   unsigned int server_len;       /* # of servers */
262   unsigned int server_used;      /* Which server we are bind in the moment ? */
263   unsigned int current_ep;       /* Which endpoint of the server are in use? */
264   unsigned int trys;             /* How many server have we tried ? */
265   unsigned int class;            /* From which class is server_val ? */
266   bool_t master_only;            /* Is only binded to the master */
267   bool_t use_auth;               /* Do we use AUTH ? */
268   bool_t use_udp;                /* Do we use UDP ? */
269   struct sockaddr_in addr;       /* Server's IP address */
270   int socket;                    /* Server's local socket */
271 };
272 typedef struct dir_binding dir_binding;
273 
274 extern nis_error __nisbind_create (dir_binding *, const nis_server *,
275 				   unsigned int, unsigned int, unsigned int,
276 				   unsigned int) __THROW;
277 extern nis_error __nisbind_connect (dir_binding *) __THROW;
278 extern nis_error __nisbind_next (dir_binding *) __THROW;
279 extern void __nisbind_destroy (dir_binding *) __THROW;
280 extern nis_error __nisfind_server (const_nis_name, int, directory_obj **,
281 				   dir_binding *, unsigned int) __THROW;
282 
283 #endif
284 
285 __END_DECLS
286 
287 #endif	/* __RPCSVC_NISLIB_H__ */
288