xref: /freebsd/include/rpcsvc/yp_prot.h (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
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  * $FreeBSD$
32  */
33 
34 #ifndef _RPCSVC_YP_PROT_H_
35 #define _RPCSVC_YP_PROT_H_
36 
37 /*
38  * YPSERV PROTOCOL:
39  *
40  * ypserv supports the following procedures:
41  *
42  * YPPROC_NULL		takes (void), returns (void).
43  * 			called to check if server is alive.
44  * YPPROC_DOMAIN	takes (char *), returns (bool_t).
45  * 			true if ypserv serves the named domain.
46  * YPPROC_DOMAIN_NOACK	takes (char *), returns (bool_t).
47  * 			true if ypserv serves the named domain.
48  *			used for broadcasts, does not ack if ypserv
49  *			doesn't handle named domain.
50  * YPPROC_MATCH		takes (struct ypreq_key), returns (struct ypresp_val)
51  * 			does a lookup.
52  * YPPROC_FIRST		takes (struct ypreq_nokey) returns (ypresp_key_val).
53  * 			gets the first key/datum from the map.
54  * YPPROC_NEXT		takes (struct ypreq_key) returns (ypresp_key_val).
55  * 			gets the next key/datum from the map.
56  * YPPROC_XFR		takes (struct ypreq_xfr), returns (void).
57  * 			tells ypserv to check if there is a new version of
58  *			the map.
59  * YPPROC_CLEAR		takes (void), returns (void).
60  * 			tells ypserv to flush it's file cache, so that
61  *			newly transferred files will get read.
62  * YPPROC_ALL		takes (struct ypreq_nokey), returns (bool_t and
63  *			struct ypresp_key_val).
64  * 			returns an array of data, with the bool_t being
65  * 			false on the last datum. read the source, it's
66  *			convoluted.
67  * YPPROC_MASTER	takes (struct ypreq_nokey), returns (ypresp_master).
68  * YPPROC_ORDER		takes (struct ypreq_nokey), returns (ypresp_order).
69  * YPPROC_MAPLIST	takes (char *), returns (struct ypmaplist *).
70  */
71 
72 #ifndef BOOL_DEFINED
73 typedef u_int bool;
74 #define BOOL_DEFINED
75 #endif
76 
77 /* Program and version symbols, magic numbers */
78 
79 #define YPPROG		((u_long)100004)
80 #define YPVERS		((u_long)2)
81 #define YPVERS_ORIG	((u_long)1)
82 #define YPMAXRECORD	((u_long)16 * 1024 * 1024)
83 #define YPMAXDOMAIN	((u_long)64)
84 #define YPMAXMAP	((u_long)64)
85 #define YPMAXPEER	((u_long)256)
86 
87 /*
88  * I don't know if anything of sun's depends on this, or if they
89  * simply defined it so that their own code wouldn't try to send
90  * packets over the ethernet MTU. This YP code doesn't use it.
91  */
92 #define YPMSGSZ		1600
93 
94 #ifndef DATUM
95 typedef struct {
96 	char	*dptr;
97 	int	dsize;
98 } datum;
99 #define DATUM
100 #endif
101 
102 struct ypmap_parms {
103 	char *domain;
104 	char *map;
105 	u_int ordernum;
106 	char *owner;
107 };
108 
109 struct ypreq_key {
110 	char *domain;
111 	char *map;
112 	datum keydat;
113 };
114 
115 struct ypreq_nokey {
116 	char *domain;
117 	char *map;
118 };
119 
120 struct ypreq_xfr {
121 	struct ypmap_parms map_parms;
122 	u_int transid;
123 	u_int proto;
124 	u_int port;
125 };
126 #define ypxfr_domain	map_parms.domain
127 #define ypxfr_map	map_parms.map
128 #define ypxfr_ordernum	map_parms.ordernum
129 #define ypxfr_owner	map_parms.owner
130 
131 struct ypresp_val {
132 	u_int status;
133 	datum valdat;
134 };
135 
136 struct ypresp_key_val {
137 	u_int status;
138 	datum keydat;
139 	datum valdat;
140 };
141 
142 struct ypresp_master {
143 	u_int status;
144 	char *master;
145 };
146 
147 struct ypresp_order {
148 	u_int status;
149 	u_int ordernum;
150 };
151 
152 struct ypmaplist {
153 	char *ypml_name;
154 	struct ypmaplist *ypml_next;
155 };
156 
157 struct ypresp_maplist {
158 	u_int status;
159 	struct ypmaplist *list;
160 };
161 
162 /* ypserv procedure numbers */
163 #define YPPROC_NULL		((u_long)0)
164 #define YPPROC_DOMAIN		((u_long)1)
165 #define YPPROC_DOMAIN_NONACK	((u_long)2)
166 #define YPPROC_MATCH		((u_long)3)
167 #define YPPROC_FIRST		((u_long)4)
168 #define YPPROC_NEXT		((u_long)5)
169 #define YPPROC_XFR		((u_long)6)
170 #define YPPROC_CLEAR		((u_long)7)
171 #define YPPROC_ALL		((u_long)8)
172 #define YPPROC_MASTER		((u_long)9)
173 #define YPPROC_ORDER		((u_long)10)
174 #define YPPROC_MAPLIST		((u_long)11)
175 
176 /* ypserv procedure return status values */
177 #define YP_TRUE	 	((long)1)	/* general purpose success code */
178 #define YP_NOMORE 	((long)2)	/* no more entries in map */
179 #define YP_FALSE 	((long)0)	/* general purpose failure code */
180 #define YP_NOMAP 	((long)-1)	/* no such map in domain */
181 #define YP_NODOM 	((long)-2)	/* domain not supported */
182 #define YP_NOKEY 	((long)-3)	/* no such key in map */
183 #define YP_BADOP 	((long)-4)	/* invalid operation */
184 #define YP_BADDB 	((long)-5)	/* server data base is bad */
185 #define YP_YPERR 	((long)-6)	/* YP server error */
186 #define YP_BADARGS 	((long)-7)	/* request arguments bad */
187 #define YP_VERS		((long)-8)	/* YP server version mismatch */
188 
189 /*
190  * Sun's header file says:
191  * "Domain binding data structure, used by ypclnt package and ypserv modules.
192  * Users of the ypclnt package (or of this protocol) don't HAVE to know about
193  * it, but it must be available to users because _yp_dobind is a public
194  * interface."
195  *
196  * This is totally bogus! Nowhere else does Sun state that _yp_dobind() is
197  * a public interface, and I don't know any reason anyone would want to call
198  * it. But, just in case anyone does actually expect it to be available..
199  * we provide this.. exactly as Sun wants it.
200  */
201 struct dom_binding {
202 	struct dom_binding *dom_pnext;
203 	char dom_domain[YPMAXDOMAIN + 1];
204 	struct sockaddr_in dom_server_addr;
205 	u_short dom_server_port;
206 	int dom_socket;
207 	CLIENT *dom_client;
208 	u_short dom_local_port;
209 	long dom_vers;
210 };
211 
212 /*
213  * YPBIND PROTOCOL:
214  *
215  * ypbind supports the following procedures:
216  *
217  * YPBINDPROC_NULL	takes (void), returns (void).
218  *			to check if ypbind is running.
219  * YPBINDPROC_DOMAIN	takes (char *), returns (struct ypbind_resp).
220  *			requests that ypbind start to serve the
221  *			named domain (if it doesn't already)
222  * YPBINDPROC_SETDOM	takes (struct ypbind_setdom), returns (void).
223  *			used by ypset.
224  */
225 
226 #define YPBINDPROG		((u_long)100007)
227 #define YPBINDVERS		((u_long)2)
228 #define YPBINDVERS_ORIG		((u_long)1)
229 
230 /* ypbind procedure numbers */
231 #define YPBINDPROC_NULL		((u_long)0)
232 #define YPBINDPROC_DOMAIN	((u_long)1)
233 #define YPBINDPROC_SETDOM	((u_long)2)
234 
235 /* error code in ypbind_resp.ypbind_status */
236 enum ypbind_resptype {
237 	YPBIND_SUCC_VAL = 1,
238 	YPBIND_FAIL_VAL = 2
239 };
240 
241 /* network order, of course */
242 struct ypbind_binding {
243 	struct in_addr	ypbind_binding_addr;
244 	u_short		ypbind_binding_port;
245 };
246 
247 struct ypbind_resp {
248 	enum ypbind_resptype	ypbind_status;
249 	union {
250 		u_int			ypbind_error;
251 		struct ypbind_binding	ypbind_bindinfo;
252 	} ypbind_respbody;
253 };
254 
255 /* error code in ypbind_resp.ypbind_respbody.ypbind_error */
256 #define YPBIND_ERR_ERR		1	/* internal error */
257 #define YPBIND_ERR_NOSERV	2	/* no bound server for passed domain */
258 #define YPBIND_ERR_RESC		3	/* system resource allocation failure */
259 
260 /*
261  * Request data structure for ypbind "Set domain" procedure.
262  */
263 struct ypbind_setdom {
264 	char ypsetdom_domain[YPMAXDOMAIN + 1];
265 	struct ypbind_binding ypsetdom_binding;
266 	u_int ypsetdom_vers;
267 };
268 #define ypsetdom_addr ypsetdom_binding.ypbind_binding_addr
269 #define ypsetdom_port ypsetdom_binding.ypbind_binding_port
270 
271 /*
272  * YPPUSH PROTOCOL:
273  *
274  * Sun says:
275  * "Protocol between clients (ypxfr, only) and yppush
276  *  yppush speaks a protocol in the transient range, which
277  *  is supplied to ypxfr as a command-line parameter when it
278  *  is activated by ypserv."
279  *
280  * This protocol is not implemented, naturally, because this YP
281  * implementation only does the client side.
282  */
283 #define YPPUSHVERS		((u_long)1)
284 #define YPPUSHVERS_ORIG		((u_long)1)
285 
286 /* yppush procedure numbers */
287 #define YPPUSHPROC_NULL		((u_long)0)
288 #define YPPUSHPROC_XFRRESP	((u_long)1)
289 
290 struct yppushresp_xfr {
291 	u_int	transid;
292 	u_int	status;
293 };
294 
295 /* yppush status value in yppushresp_xfr.status */
296 #define YPPUSH_SUCC	((long)1)	/* Success */
297 #define YPPUSH_AGE	((long)2)	/* Master's version not newer */
298 #define YPPUSH_NOMAP 	((long)-1)	/* Can't find server for map */
299 #define YPPUSH_NODOM 	((long)-2)	/* Domain not supported */
300 #define YPPUSH_RSRC 	((long)-3)	/* Local resource alloc failure */
301 #define YPPUSH_RPC 	((long)-4)	/* RPC failure talking to server */
302 #define YPPUSH_MADDR	((long)-5)	/* Can't get master address */
303 #define YPPUSH_YPERR 	((long)-6)	/* YP server/map db error */
304 #define YPPUSH_BADARGS 	((long)-7)	/* Request arguments bad */
305 #define YPPUSH_DBM	((long)-8)	/* Local dbm operation failed */
306 #define YPPUSH_FILE	((long)-9)	/* Local file I/O operation failed */
307 #define YPPUSH_SKEW	((long)-10)	/* Map version skew during transfer */
308 #define YPPUSH_CLEAR	((long)-11)	/* Can't send "Clear" req to local ypserv */
309 #define YPPUSH_FORCE	((long)-12)	/* No local order number in map - use -f */
310 #define YPPUSH_XFRERR	((long)-13)	/* ypxfr error */
311 #define YPPUSH_REFUSED	((long)-14)	/* Transfer request refused by ypserv */
312 
313 struct inaddr;
314 __BEGIN_DECLS
315 bool_t	xdr_datum(XDR *, datum *);
316 bool_t	xdr_ypreq_key(XDR *, struct ypreq_key *);
317 bool_t	xdr_ypreq_nokey(XDR *, struct ypreq_nokey *);
318 bool_t	xdr_ypreq_xfr(XDR *, struct ypreq_xfr *);
319 bool_t	xdr_ypresp_val(XDR *, struct ypresp_val *);
320 bool_t	xdr_ypresp_key_val(XDR *, struct ypresp_key_val *);
321 bool_t	xdr_ypbind_resp(XDR *, struct ypbind_resp *);
322 bool_t	xdr_ypbind_setdom(XDR *, struct ypbind_setdom *);
323 bool_t	xdr_yp_inaddr(XDR *, struct inaddr *);
324 bool_t	xdr_ypmap_parms(XDR *, struct ypmap_parms *);
325 bool_t	xdr_yppushresp_xfr(XDR *, struct yppushresp_xfr *);
326 bool_t	xdr_ypresp_order(XDR *, struct ypresp_order *);
327 bool_t	xdr_ypresp_master(XDR *, struct ypresp_master *);
328 bool_t	xdr_ypresp_maplist(XDR *, struct ypresp_maplist *);
329 __END_DECLS
330 
331 #endif /* _RPCSVC_YP_PROT_H_ */
332