xref: /freebsd/include/rpcsvc/yp_prot.h (revision 8aac90f18aef7c9eea906c3ff9a001ca7b94f375)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote
16  *    products derived from this software without specific prior written
17  *    permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #ifndef _RPCSVC_YP_PROT_H_
33 #define _RPCSVC_YP_PROT_H_
34 
35 /*
36  * YPSERV PROTOCOL:
37  *
38  * ypserv supports the following procedures:
39  *
40  * YPPROC_NULL		takes (void), returns (void).
41  * 			called to check if server is alive.
42  * YPPROC_DOMAIN	takes (char *), returns (bool_t).
43  * 			true if ypserv serves the named domain.
44  * YPPROC_DOMAIN_NOACK	takes (char *), returns (bool_t).
45  * 			true if ypserv serves the named domain.
46  *			used for broadcasts, does not ack if ypserv
47  *			doesn't handle named domain.
48  * YPPROC_MATCH		takes (struct ypreq_key), returns (struct ypresp_val)
49  * 			does a lookup.
50  * YPPROC_FIRST		takes (struct ypreq_nokey) returns (ypresp_key_val).
51  * 			gets the first key/datum from the map.
52  * YPPROC_NEXT		takes (struct ypreq_key) returns (ypresp_key_val).
53  * 			gets the next key/datum from the map.
54  * YPPROC_XFR		takes (struct ypreq_xfr), returns (void).
55  * 			tells ypserv to check if there is a new version of
56  *			the map.
57  * YPPROC_CLEAR		takes (void), returns (void).
58  * 			tells ypserv to flush it's file cache, so that
59  *			newly transferred files will get read.
60  * YPPROC_ALL		takes (struct ypreq_nokey), returns (bool_t and
61  *			struct ypresp_key_val).
62  * 			returns an array of data, with the bool_t being
63  * 			false on the last datum. read the source, it's
64  *			convoluted.
65  * YPPROC_MASTER	takes (struct ypreq_nokey), returns (ypresp_master).
66  * YPPROC_ORDER		takes (struct ypreq_nokey), returns (ypresp_order).
67  * YPPROC_MAPLIST	takes (char *), returns (struct ypmaplist *).
68  */
69 
70 #ifndef BOOL_DEFINED
71 typedef u_int bool;
72 #define BOOL_DEFINED
73 #endif
74 
75 /* Program and version symbols, magic numbers */
76 
77 #define YPPROG		((u_long)100004)
78 #define YPVERS		((u_long)2)
79 #define YPVERS_ORIG	((u_long)1)
80 #define YPMAXRECORD	((u_long)16 * 1024 * 1024)
81 #define YPMAXDOMAIN	((u_long)64)
82 #define YPMAXMAP	((u_long)64)
83 #define YPMAXPEER	((u_long)256)
84 
85 /*
86  * I don't know if anything of sun's depends on this, or if they
87  * simply defined it so that their own code wouldn't try to send
88  * packets over the ethernet MTU. This YP code doesn't use it.
89  */
90 #define YPMSGSZ		1600
91 
92 #ifndef DATUM
93 typedef struct {
94 	char	*dptr;
95 	int	dsize;
96 } datum;
97 #define DATUM
98 #endif
99 
100 struct ypmap_parms {
101 	char *domain;
102 	char *map;
103 	u_int ordernum;
104 	char *owner;
105 };
106 
107 struct ypreq_key {
108 	char *domain;
109 	char *map;
110 	datum keydat;
111 };
112 
113 struct ypreq_nokey {
114 	char *domain;
115 	char *map;
116 };
117 
118 struct ypreq_xfr {
119 	struct ypmap_parms map_parms;
120 	u_int transid;
121 	u_int proto;
122 	u_int port;
123 };
124 #define ypxfr_domain	map_parms.domain
125 #define ypxfr_map	map_parms.map
126 #define ypxfr_ordernum	map_parms.ordernum
127 #define ypxfr_owner	map_parms.owner
128 
129 struct ypresp_val {
130 	u_int status;
131 	datum valdat;
132 };
133 
134 struct ypresp_key_val {
135 	u_int status;
136 	datum keydat;
137 	datum valdat;
138 };
139 
140 struct ypresp_master {
141 	u_int status;
142 	char *master;
143 };
144 
145 struct ypresp_order {
146 	u_int status;
147 	u_int ordernum;
148 };
149 
150 struct ypmaplist {
151 	char *ypml_name;
152 	struct ypmaplist *ypml_next;
153 };
154 
155 struct ypresp_maplist {
156 	u_int status;
157 	struct ypmaplist *list;
158 };
159 
160 /* ypserv procedure numbers */
161 #define YPPROC_NULL		((u_long)0)
162 #define YPPROC_DOMAIN		((u_long)1)
163 #define YPPROC_DOMAIN_NONACK	((u_long)2)
164 #define YPPROC_MATCH		((u_long)3)
165 #define YPPROC_FIRST		((u_long)4)
166 #define YPPROC_NEXT		((u_long)5)
167 #define YPPROC_XFR		((u_long)6)
168 #define YPPROC_CLEAR		((u_long)7)
169 #define YPPROC_ALL		((u_long)8)
170 #define YPPROC_MASTER		((u_long)9)
171 #define YPPROC_ORDER		((u_long)10)
172 #define YPPROC_MAPLIST		((u_long)11)
173 
174 /* ypserv procedure return status values */
175 #define YP_TRUE	 	((long)1)	/* general purpose success code */
176 #define YP_NOMORE 	((long)2)	/* no more entries in map */
177 #define YP_FALSE 	((long)0)	/* general purpose failure code */
178 #define YP_NOMAP 	((long)-1)	/* no such map in domain */
179 #define YP_NODOM 	((long)-2)	/* domain not supported */
180 #define YP_NOKEY 	((long)-3)	/* no such key in map */
181 #define YP_BADOP 	((long)-4)	/* invalid operation */
182 #define YP_BADDB 	((long)-5)	/* server data base is bad */
183 #define YP_YPERR 	((long)-6)	/* YP server error */
184 #define YP_BADARGS 	((long)-7)	/* request arguments bad */
185 #define YP_VERS		((long)-8)	/* YP server version mismatch */
186 
187 /*
188  * Sun's header file says:
189  * "Domain binding data structure, used by ypclnt package and ypserv modules.
190  * Users of the ypclnt package (or of this protocol) don't HAVE to know about
191  * it, but it must be available to users because _yp_dobind is a public
192  * interface."
193  *
194  * This is totally bogus! Nowhere else does Sun state that _yp_dobind() is
195  * a public interface, and I don't know any reason anyone would want to call
196  * it. But, just in case anyone does actually expect it to be available..
197  * we provide this.. exactly as Sun wants it.
198  */
199 struct dom_binding {
200 	struct dom_binding *dom_pnext;
201 	char dom_domain[YPMAXDOMAIN + 1];
202 	struct sockaddr_in dom_server_addr;
203 	u_short dom_server_port;
204 	int dom_socket;
205 	CLIENT *dom_client;
206 	u_short dom_local_port;
207 	long dom_vers;
208 };
209 
210 /*
211  * YPBIND PROTOCOL:
212  *
213  * ypbind supports the following procedures:
214  *
215  * YPBINDPROC_NULL	takes (void), returns (void).
216  *			to check if ypbind is running.
217  * YPBINDPROC_DOMAIN	takes (char *), returns (struct ypbind_resp).
218  *			requests that ypbind start to serve the
219  *			named domain (if it doesn't already)
220  * YPBINDPROC_SETDOM	takes (struct ypbind_setdom), returns (void).
221  *			used by ypset.
222  */
223 
224 #define YPBINDPROG		((u_long)100007)
225 #define YPBINDVERS		((u_long)2)
226 #define YPBINDVERS_ORIG		((u_long)1)
227 
228 /* ypbind procedure numbers */
229 #define YPBINDPROC_NULL		((u_long)0)
230 #define YPBINDPROC_DOMAIN	((u_long)1)
231 #define YPBINDPROC_SETDOM	((u_long)2)
232 
233 /* error code in ypbind_resp.ypbind_status */
234 enum ypbind_resptype {
235 	YPBIND_SUCC_VAL = 1,
236 	YPBIND_FAIL_VAL = 2
237 };
238 
239 /* network order, of course */
240 struct ypbind_binding {
241 	struct in_addr	ypbind_binding_addr;
242 	u_short		ypbind_binding_port;
243 };
244 
245 struct ypbind_resp {
246 	enum ypbind_resptype	ypbind_status;
247 	union {
248 		u_int			ypbind_error;
249 		struct ypbind_binding	ypbind_bindinfo;
250 	} ypbind_respbody;
251 };
252 
253 /* error code in ypbind_resp.ypbind_respbody.ypbind_error */
254 #define YPBIND_ERR_ERR		1	/* internal error */
255 #define YPBIND_ERR_NOSERV	2	/* no bound server for passed domain */
256 #define YPBIND_ERR_RESC		3	/* system resource allocation failure */
257 
258 /*
259  * Request data structure for ypbind "Set domain" procedure.
260  */
261 struct ypbind_setdom {
262 	char ypsetdom_domain[YPMAXDOMAIN + 1];
263 	struct ypbind_binding ypsetdom_binding;
264 	u_int ypsetdom_vers;
265 };
266 #define ypsetdom_addr ypsetdom_binding.ypbind_binding_addr
267 #define ypsetdom_port ypsetdom_binding.ypbind_binding_port
268 
269 /*
270  * YPPUSH PROTOCOL:
271  *
272  * Sun says:
273  * "Protocol between clients (ypxfr, only) and yppush
274  *  speaks a protocol in the transient range, which
275  *  is supplied to ypxfr as a command-line parameter when it
276  *  is activated by ypserv."
277  *
278  * This protocol is not implemented, naturally, because this YP
279  * implementation only does the client side.
280  */
281 #define YPPUSHVERS		((u_long)1)
282 #define YPPUSHVERS_ORIG		((u_long)1)
283 
284 /* yppush procedure numbers */
285 #define YPPUSHPROC_NULL		((u_long)0)
286 #define YPPUSHPROC_XFRRESP	((u_long)1)
287 
288 struct yppushresp_xfr {
289 	u_int	transid;
290 	u_int	status;
291 };
292 
293 /* yppush status value in yppushresp_xfr.status */
294 #define YPPUSH_SUCC	((long)1)	/* Success */
295 #define YPPUSH_AGE	((long)2)	/* Master's version not newer */
296 #define YPPUSH_NOMAP 	((long)-1)	/* Can't find server for map */
297 #define YPPUSH_NODOM 	((long)-2)	/* Domain not supported */
298 #define YPPUSH_RSRC 	((long)-3)	/* Local resource alloc failure */
299 #define YPPUSH_RPC 	((long)-4)	/* RPC failure talking to server */
300 #define YPPUSH_MADDR	((long)-5)	/* Can't get master address */
301 #define YPPUSH_YPERR 	((long)-6)	/* YP server/map db error */
302 #define YPPUSH_BADARGS 	((long)-7)	/* Request arguments bad */
303 #define YPPUSH_DBM	((long)-8)	/* Local dbm operation failed */
304 #define YPPUSH_FILE	((long)-9)	/* Local file I/O operation failed */
305 #define YPPUSH_SKEW	((long)-10)	/* Map version skew during transfer */
306 #define YPPUSH_CLEAR	((long)-11)	/* Can't send "Clear" req to local ypserv */
307 #define YPPUSH_FORCE	((long)-12)	/* No local order number in map - use -f */
308 #define YPPUSH_XFRERR	((long)-13)	/* ypxfr error */
309 #define YPPUSH_REFUSED	((long)-14)	/* Transfer request refused by ypserv */
310 
311 struct inaddr;
312 __BEGIN_DECLS
313 bool_t	xdr_datum(XDR *, datum *);
314 bool_t	xdr_ypreq_key(XDR *, struct ypreq_key *);
315 bool_t	xdr_ypreq_nokey(XDR *, struct ypreq_nokey *);
316 bool_t	xdr_ypreq_xfr(XDR *, struct ypreq_xfr *);
317 bool_t	xdr_ypresp_val(XDR *, struct ypresp_val *);
318 bool_t	xdr_ypresp_key_val(XDR *, struct ypresp_key_val *);
319 bool_t	xdr_ypbind_resp(XDR *, struct ypbind_resp *);
320 bool_t	xdr_ypbind_setdom(XDR *, struct ypbind_setdom *);
321 bool_t	xdr_yp_inaddr(XDR *, struct inaddr *);
322 bool_t	xdr_ypmap_parms(XDR *, struct ypmap_parms *);
323 bool_t	xdr_yppushresp_xfr(XDR *, struct yppushresp_xfr *);
324 bool_t	xdr_ypresp_order(XDR *, struct ypresp_order *);
325 bool_t	xdr_ypresp_master(XDR *, struct ypresp_master *);
326 bool_t	xdr_ypresp_maplist(XDR *, struct ypresp_maplist *);
327 __END_DECLS
328 
329 #endif /* _RPCSVC_YP_PROT_H_ */
330