source: rtems/cpukit/librpc/include/rpc/clnt.h @ 77b6a10

4.104.114.84.95
Last change on this file since 77b6a10 was 77b6a10, checked in by Joel Sherrill <joel.sherrill@…>, on 01/09/05 at 17:12:03

2005-01-09 Joel Sherrill <joel@…>

  • librpc/include/rpc/clnt.h, librpc/src/rpc/authunix_prot.c, librpc/src/rpc/clnt_tcp.c, librpc/src/rpc/pmap_prot2.c, librpc/src/rpc/pmap_rmt.c, librpc/src/rpc/rtems_portmapper.c, librpc/src/rpc/svc_simple.c: Fix warnings.
  • Property mode set to 100644
File size: 11.2 KB
Line 
1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California  94043
28 *
29 *      from: @(#)clnt.h 1.31 88/02/08 SMI
30 *      from: @(#)clnt.h        2.1 88/07/29 4.0 RPCSRC
31 * $FreeBSD: src/include/rpc/clnt.h,v 1.11 1999/08/27 23:45:03 peter Exp $
32 */
33
34/*
35 * clnt.h - Client side remote procedure call interface.
36 *
37 * Copyright (C) 1984, Sun Microsystems, Inc.
38 */
39
40#ifndef _RPC_CLNT_H_
41#define _RPC_CLNT_H_
42#include <sys/cdefs.h>
43#include <sys/un.h>
44
45/*
46 * Rpc calls return an enum clnt_stat.  This should be looked at more,
47 * since each implementation is required to live with this (implementation
48 * independent) list of errors.
49 */
50enum clnt_stat {
51        RPC_SUCCESS=0,                  /* call succeeded */
52        /*
53         * local errors
54         */
55        RPC_CANTENCODEARGS=1,           /* can't encode arguments */
56        RPC_CANTDECODERES=2,            /* can't decode results */
57        RPC_CANTSEND=3,                 /* failure in sending call */
58        RPC_CANTRECV=4,                 /* failure in receiving result */
59        RPC_TIMEDOUT=5,                 /* call timed out */
60        /*
61         * remote errors
62         */
63        RPC_VERSMISMATCH=6,             /* rpc versions not compatible */
64        RPC_AUTHERROR=7,                /* authentication error */
65        RPC_PROGUNAVAIL=8,              /* program not available */
66        RPC_PROGVERSMISMATCH=9,         /* program version mismatched */
67        RPC_PROCUNAVAIL=10,             /* procedure unavailable */
68        RPC_CANTDECODEARGS=11,          /* decode arguments error */
69        RPC_SYSTEMERROR=12,             /* generic "other problem" */
70
71        /*
72         * callrpc & clnt_create errors
73         */
74        RPC_UNKNOWNHOST=13,             /* unknown host name */
75        RPC_UNKNOWNPROTO=17,            /* unkown protocol */
76
77        /*
78         * _ create errors
79         */
80        RPC_PMAPFAILURE=14,             /* the pmapper failed in its call */
81        RPC_PROGNOTREGISTERED=15,       /* remote program is not registered */
82        /*
83         * unspecified error
84         */
85        RPC_FAILED=16
86};
87
88
89/*
90 * Error info.
91 */
92struct rpc_err {
93        enum clnt_stat re_status;
94        union {
95                int RE_errno;           /* related system error */
96                enum auth_stat RE_why;  /* why the auth error occurred */
97                struct {
98                        u_int32_t low;  /* lowest verion supported */
99                        u_int32_t high; /* highest verion supported */
100                } RE_vers;
101                struct {                /* maybe meaningful if RPC_FAILED */
102                        int32_t s1;
103                        int32_t s2;
104                } RE_lb;                /* life boot & debugging only */
105        } ru;
106#define re_errno        ru.RE_errno
107#define re_why          ru.RE_why
108#define re_vers         ru.RE_vers
109#define re_lb           ru.RE_lb
110};
111
112
113/*
114 * Client rpc handle.
115 * Created by individual implementations, see e.g. rpc_udp.c.
116 * Client is responsible for initializing auth, see e.g. auth_none.c.
117 */
118typedef struct __rpc_client {
119        AUTH    *cl_auth;                       /* authenticator */
120        struct clnt_ops {
121                /* call remote procedure */
122                enum clnt_stat  (*cl_call) __P((struct __rpc_client *,
123                                        u_long, xdrproc_t, caddr_t, xdrproc_t,
124                                        caddr_t, struct timeval));
125                /* abort a call */
126                void            (*cl_abort) __P((struct __rpc_client *));
127                /* get specific error code */
128                void            (*cl_geterr) __P((struct __rpc_client *,
129                                        struct rpc_err *));
130                /* frees results */
131                bool_t          (*cl_freeres) __P((struct __rpc_client *,
132                                        xdrproc_t, caddr_t));
133                /* destroy this structure */
134                void            (*cl_destroy) __P((struct __rpc_client *));
135                /* the ioctl() of rpc */
136                bool_t          (*cl_control) __P((struct __rpc_client *, u_int,
137                                        void *));
138        } *cl_ops;
139        caddr_t                 cl_private;     /* private stuff */
140} CLIENT;
141
142
143/*
144 * client side rpc interface ops
145 *
146 * Parameter types are:
147 *
148 */
149
150/*
151 * enum clnt_stat
152 * CLNT_CALL(rh, proc, xargs, argsp, xres, resp, timeout)
153 *      CLIENT *rh;
154 *      u_long proc;
155 *      xdrproc_t xargs;
156 *      caddr_t argsp;
157 *      xdrproc_t xres;
158 *      caddr_t resp;
159 *      struct timeval timeout;
160 */
161#define CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs)     \
162        ((*(rh)->cl_ops->cl_call)(rh, proc, (xdrproc_t)xargs, (caddr_t)argsp, \
163                (xdrproc_t) xres, (caddr_t)resp, secs))
164#define clnt_call(rh, proc, xargs, argsp, xres, resp, secs)     \
165        ((*(rh)->cl_ops->cl_call)(rh, proc, (xdrproc_t) xargs, (caddr_t)argsp, \
166                (xdrproc_t) xres, (caddr_t)resp, secs))
167
168/*
169 * void
170 * CLNT_ABORT(rh);
171 *      CLIENT *rh;
172 */
173#define CLNT_ABORT(rh)  ((*(rh)->cl_ops->cl_abort)(rh))
174#define clnt_abort(rh)  ((*(rh)->cl_ops->cl_abort)(rh))
175
176/*
177 * struct rpc_err
178 * CLNT_GETERR(rh);
179 *      CLIENT *rh;
180 */
181#define CLNT_GETERR(rh,errp)    ((*(rh)->cl_ops->cl_geterr)(rh, errp))
182#define clnt_geterr(rh,errp)    ((*(rh)->cl_ops->cl_geterr)(rh, errp))
183
184
185/*
186 * bool_t
187 * CLNT_FREERES(rh, xres, resp);
188 *      CLIENT *rh;
189 *      xdrproc_t xres;
190 *      caddr_t resp;
191 */
192#define CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,(xdrproc_t)xres,resp))
193#define clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,(xdrproc_t)xres,resp))
194
195/*
196 * bool_t
197 * CLNT_CONTROL(cl, request, info)
198 *      CLIENT *cl;
199 *      u_int request;
200 *      char *info;
201 */
202#define CLNT_CONTROL(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
203#define clnt_control(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
204
205/*
206 * control operations that apply to udp, tcp and unix transports
207 *
208 * Note: options marked XXX are no-ops in this implementation of RPC.
209 * The are present in TI-RPC but can't be implemented here since they
210 * depend on the presence of STREAMS/TLI, which we don't have.
211 *
212 */
213#define CLSET_TIMEOUT       1   /* set timeout (timeval) */
214#define CLGET_TIMEOUT       2   /* get timeout (timeval) */
215#define CLGET_SERVER_ADDR   3   /* get server's address (sockaddr) */
216#define CLGET_FD            6   /* get connections file descriptor */
217#define CLGET_SVC_ADDR      7   /* get server's address (netbuf)         XXX */
218#define CLSET_FD_CLOSE      8   /* close fd while clnt_destroy */
219#define CLSET_FD_NCLOSE     9   /* Do not close fd while clnt_destroy */
220#define CLGET_XID           10  /* Get xid */
221#define CLSET_XID           11  /* Set xid */
222#define CLGET_VERS          12  /* Get version number */
223#define CLSET_VERS          13  /* Set version number */
224#define CLGET_PROG          14  /* Get program number */
225#define CLSET_PROG          15  /* Set program number */
226#define CLSET_SVC_ADDR      16  /* get server's address (netbuf)         XXX */
227#define CLSET_PUSH_TIMOD    17  /* push timod if not already present     XXX */
228#define CLSET_POP_TIMOD     18  /* pop timod                             XXX */
229
230/*
231 * udp only control operations
232 */
233#define CLSET_RETRY_TIMEOUT 4   /* set retry timeout (timeval) */
234#define CLGET_RETRY_TIMEOUT 5   /* get retry timeout (timeval) */
235
236/*
237 * Operations which GSSAPI needs. (Bletch.)
238 */
239#define CLGET_LOCAL_ADDR    19  /* get local addr (sockaddr) */
240
241
242/*
243 * void
244 * CLNT_DESTROY(rh);
245 *      CLIENT *rh;
246 */
247#define CLNT_DESTROY(rh)        ((*(rh)->cl_ops->cl_destroy)(rh))
248#define clnt_destroy(rh)        ((*(rh)->cl_ops->cl_destroy)(rh))
249
250
251/*
252 * RPCTEST is a test program which is accessible on every rpc
253 * transport/port.  It is used for testing, performance evaluation,
254 * and network administration.
255 */
256
257#define RPCTEST_PROGRAM         ((u_long)1)
258#define RPCTEST_VERSION         ((u_long)1)
259#define RPCTEST_NULL_PROC       ((u_long)2)
260#define RPCTEST_NULL_BATCH_PROC ((u_long)3)
261
262/*
263 * By convention, procedure 0 takes null arguments and returns them
264 */
265
266#define NULLPROC ((u_long)0)
267
268/*
269 * Below are the client handle creation routines for the various
270 * implementations of client side rpc.  They can return NULL if a
271 * creation failure occurs.
272 */
273
274/*
275 * Memory based rpc (for speed check and testing)
276 * CLIENT *
277 * clntraw_create(prog, vers)
278 *      u_long prog;
279 *      u_long vers;
280 */
281__BEGIN_DECLS
282extern CLIENT *clntraw_create   __P((u_long, u_long));
283__END_DECLS
284
285
286/*
287 * Generic client creation routine. Supported protocols are "udp", "tcp"
288 * and "unix".
289 * CLIENT *
290 * clnt_create(host, prog, vers, prot);
291 *      char *host;     -- hostname
292 *      u_long prog;    -- program number
293 *      u_long vers;    -- version number
294 *      char *prot;     -- protocol
295 */
296__BEGIN_DECLS
297extern CLIENT *clnt_create      __P((char *, u_long, u_long, char *));
298__END_DECLS
299
300
301/*
302 * TCP based rpc
303 * CLIENT *
304 * clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz)
305 *      struct sockaddr_in *raddr;
306 *      u_long prog;
307 *      u_long version;
308 *      register int *sockp;
309 *      u_int sendsz;
310 *      u_int recvsz;
311 */
312__BEGIN_DECLS
313extern CLIENT *clnttcp_create   __P((struct sockaddr_in *,
314                                     u_long,
315                                     u_long,
316                                     int *,
317                                     u_int,
318                                     u_int));
319__END_DECLS
320
321
322/*
323 * UDP based rpc.
324 * CLIENT *
325 * clntudp_create(raddr, program, version, wait, sockp)
326 *      struct sockaddr_in *raddr;
327 *      u_long program;
328 *      u_long version;
329 *      struct timeval wait;
330 *      int *sockp;
331 *
332 * Same as above, but you specify max packet sizes.
333 * CLIENT *
334 * clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz)
335 *      struct sockaddr_in *raddr;
336 *      u_long program;
337 *      u_long version;
338 *      struct timeval wait;
339 *      int *sockp;
340 *      u_int sendsz;
341 *      u_int recvsz;
342 */
343__BEGIN_DECLS
344extern CLIENT *clntudp_create   __P((struct sockaddr_in *,
345                                     u_long,
346                                     u_long,
347                                     struct timeval,
348                                     int *));
349extern CLIENT *clntudp_bufcreate __P((struct sockaddr_in *,
350                                     u_long,
351                                     u_long,
352                                     struct timeval,
353                                     int *,
354                                     u_int,
355                                     u_int));
356__END_DECLS
357
358
359/*
360 * AF_UNIX based rpc
361 * CLIENT *
362 * clntunix_create(raddr, prog, vers, sockp, sendsz, recvsz)
363 *      struct sockaddr_un *raddr;
364 *      u_long prog;
365 *      u_long version;
366 *      register int *sockp;
367 *      u_int sendsz;
368 *      u_int recvsz;
369 */
370__BEGIN_DECLS
371extern CLIENT *clntunix_create  __P((struct sockaddr_un *,
372                                     u_long,
373                                     u_long,
374                                     int *,
375                                     u_int,
376                                     u_int));
377__END_DECLS
378
379
380/*
381 * Print why creation failed
382 */
383__BEGIN_DECLS
384extern void clnt_pcreateerror   __P((char *));                  /* stderr */
385extern char *clnt_spcreateerror __P((char *));                  /* string */
386__END_DECLS
387
388/*
389 * Like clnt_perror(), but is more verbose in its output
390 */
391__BEGIN_DECLS
392extern void clnt_perrno         __P((enum clnt_stat));          /* stderr */
393extern char *clnt_sperrno       __P((enum clnt_stat));          /* string */
394__END_DECLS
395
396/*
397 * Print an English error message, given the client error code
398 */
399__BEGIN_DECLS
400extern void clnt_perror         __P((CLIENT *, char *));        /* stderr */
401extern char *clnt_sperror       __P((CLIENT *, char *));        /* string */
402__END_DECLS
403
404
405/*
406 * If a creation fails, the following allows the user to figure out why.
407 */
408struct rpc_createerr {
409        enum clnt_stat cf_stat;
410        struct rpc_err cf_error; /* useful when cf_stat == RPC_PMAPFAILURE */
411};
412
413extern struct rpc_createerr rpc_createerr;
414
415
416#define UDPMSGSIZE      8800    /* rpc imposed limit on udp msg size */
417#define RPCSMALLMSGSIZE 400     /* a more reasonable packet size */
418
419#endif /* !_RPC_CLNT_H */
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