/* $NetBSD: clnt.h,v 1.14 2000/06/02 22:57:55 fvdl Exp $ */
/*
* The contents of this file are subject to the Sun Standards
* License Version 1.0 the (the "License";) You may not use
* this file except in compliance with the License. You may
* obtain a copy of the License at lib/libc/rpc/LICENSE
*
* Software distributed under the License is distributed on
* an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is Copyright 1998 by Sun Microsystems, Inc
*
* The Initial Developer of the Original Code is: Sun
* Microsystems, Inc.
*
* All Rights Reserved.
*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*
* from: @(#)clnt.h 1.31 88/02/08 SMI
* from: @(#)clnt.h 2.1 88/07/29 4.0 RPCSRC
* $FreeBSD: src/include/rpc/clnt.h,v 1.11 1999/08/27 23:45:03 peter Exp $
*/
/*
* clnt.h - Client side remote procedure call interface.
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#ifndef _RPC_CLNT_H_
#define _RPC_CLNT_H_
#include <sys/cdefs.h>
#include <sys/un.h>
/*
* Rpc calls return an enum clnt_stat. This should be looked at more,
* since each implementation is required to live with this (implementation
* independent) list of errors.
*/
enum clnt_stat {
RPC_SUCCESS=0, /* call succeeded */
/*
* local errors
*/
RPC_CANTENCODEARGS=1, /* can't encode arguments */
RPC_CANTDECODERES=2, /* can't decode results */
RPC_CANTSEND=3, /* failure in sending call */
RPC_CANTRECV=4, /* failure in receiving result */
RPC_TIMEDOUT=5, /* call timed out */
/*
* remote errors
*/
RPC_VERSMISMATCH=6, /* rpc versions not compatible */
RPC_AUTHERROR=7, /* authentication error */
RPC_PROGUNAVAIL=8, /* program not available */
RPC_PROGVERSMISMATCH=9, /* program version mismatched */
RPC_PROCUNAVAIL=10, /* procedure unavailable */
RPC_CANTDECODEARGS=11, /* decode arguments error */
RPC_SYSTEMERROR=12, /* generic "other problem" */
/*
* callrpc & clnt_create errors
*/
RPC_UNKNOWNHOST=13, /* unknown host name */
RPC_UNKNOWNPROTO=17, /* unkown protocol */
/*
* _ create errors
*/
RPC_PMAPFAILURE=14, /* the pmapper failed in its call */
RPC_PROGNOTREGISTERED=15, /* remote program is not registered */
/*
* unspecified error
*/
RPC_FAILED=16
};
/*
* Error info.
*/
struct rpc_err {
enum clnt_stat re_status;
union {
int RE_errno; /* related system error */
enum auth_stat RE_why; /* why the auth error occurred */
struct {
rpcvers_t low; /* lowest version supported */
rpcvers_t high; /* highest version supported */
} RE_vers;
struct { /* maybe meaningful if RPC_FAILED */
int32_t s1;
int32_t s2;
} RE_lb; /* life boot & debugging only */
} ru;
#define re_errno ru.RE_errno
#define re_why ru.RE_why
#define re_vers ru.RE_vers
#define re_lb ru.RE_lb
};
/*
* Client rpc handle.
* Created by individual implementations
* Client is responsible for initializing auth, see e.g. auth_none.c.
*/
typedef struct __rpc_client {
AUTH *cl_auth; /* authenticator */
struct clnt_ops {
/* call remote procedure */
enum clnt_stat (*cl_call)(struct __rpc_client *,
rpcproc_t, xdrproc_t, void *, xdrproc_t,
void *, struct timeval);
/* abort a call */
void (*cl_abort)(struct __rpc_client *);
/* get specific error code */
void (*cl_geterr)(struct __rpc_client *,
struct rpc_err *);
/* frees results */
bool_t (*cl_freeres)(struct __rpc_client *,
xdrproc_t, caddr_t);
/* destroy this structure */
void (*cl_destroy)(struct __rpc_client *);
/* the ioctl() of rpc */
bool_t (*cl_control)(struct __rpc_client *, u_int,
void *);
} *cl_ops;
caddr_t cl_private; /* private stuff */
} CLIENT;
/*
* client side rpc interface ops
*
* Parameter types are:
*
*/
/*
* enum clnt_stat
* CLNT_CALL(rh, proc, xargs, argsp, xres, resp, timeout)
* CLIENT *rh;
* u_long proc;
* xdrproc_t xargs;
* caddr_t argsp;
* xdrproc_t xres;
* caddr_t resp;
* struct timeval timeout;
*/
#define CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs) \
((*(rh)->cl_ops->cl_call)(rh, proc, (xdrproc_t)xargs, (caddr_t)argsp, \
(xdrproc_t) xres, (caddr_t)resp, secs))
#define clnt_call(rh, proc, xargs, argsp, xres, resp, secs) \
((*(rh)->cl_ops->cl_call)(rh, proc, (xdrproc_t) xargs, (caddr_t)argsp, \
(xdrproc_t) xres, (caddr_t)resp, secs))
/*
* void
* CLNT_ABORT(rh);
* CLIENT *rh;
*/
#define CLNT_ABORT(rh) ((*(rh)->cl_ops->cl_abort)(rh))
#define clnt_abort(rh) ((*(rh)->cl_ops->cl_abort)(rh))
/*
* struct rpc_err
* CLNT_GETERR(rh);
* CLIENT *rh;
*/
#define CLNT_GETERR(rh,errp) ((*(rh)->cl_ops->cl_geterr)(rh, errp))
#define clnt_geterr(rh,errp) ((*(rh)->cl_ops->cl_geterr)(rh, errp))
/*
* bool_t
* CLNT_FREERES(rh, xres, resp);
* CLIENT *rh;
* xdrproc_t xres;
* caddr_t resp;
*/
#define CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,(xdrproc_t)xres,resp))
#define clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,(xdrproc_t)xres,resp))
/*
* bool_t
* CLNT_CONTROL(cl, request, info)
* CLIENT *cl;
* u_int request;
* char *info;
*/
#define CLNT_CONTROL(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
#define clnt_control(cl,rq,in) ((*(cl)->cl_ops->cl_control)(cl,rq,in))
/*
* control operations that apply to udp, tcp and unix transports
*
* Note: options marked XXX are no-ops in this implementation of RPC.
* The are present in TI-RPC but can't be implemented here since they
* depend on the presence of STREAMS/TLI, which we don't have.
*
*/
#define CLSET_TIMEOUT 1 /* set timeout (timeval) */
#define CLGET_TIMEOUT 2 /* get timeout (timeval) */
#define CLGET_SERVER_ADDR 3 /* get server's address (sockaddr) */
#define CLGET_FD 6 /* get connections file descriptor */
#define CLGET_SVC_ADDR 7 /* get server's address (netbuf) */
#define CLSET_FD_CLOSE 8 /* close fd while clnt_destroy */
#define CLSET_FD_NCLOSE 9 /* Do not close fd while clnt_destroy */
#define CLGET_XID 10 /* Get xid */
#define CLSET_XID 11 /* Set xid */
#define CLGET_VERS 12 /* Get version number */
#define CLSET_VERS 13 /* Set version number */
#define CLGET_PROG 14 /* Get program number */
#define CLSET_PROG 15 /* Set program number */
#define CLSET_SVC_ADDR 16 /* get server's address (netbuf) XXX */
#define CLSET_PUSH_TIMOD 17 /* push timod if not already present XXX */
#define CLSET_POP_TIMOD 18 /* pop timod XXX */
/*
* Connectionless only control operations
*/
#define CLSET_RETRY_TIMEOUT 4 /* set retry timeout (timeval) */
#define CLGET_RETRY_TIMEOUT 5 /* get retry timeout (timeval) */
/*
* Operations which GSSAPI needs. (Bletch.)
*/
#define CLGET_LOCAL_ADDR 19 /* get local addr (sockaddr) */
/*
* void
* CLNT_DESTROY(rh);
* CLIENT *rh;
*/
#define CLNT_DESTROY(rh) ((*(rh)->cl_ops->cl_destroy)(rh))
#define clnt_destroy(rh) ((*(rh)->cl_ops->cl_destroy)(rh))
/*
* RPCTEST is a test program which is accessible on every rpc
* transport/port. It is used for testing, performance evaluation,
* and network administration.
*/
#define RPCTEST_PROGRAM ((rpcprog_t)1)
#define RPCTEST_VERSION ((rpcvers_t)1)
#define RPCTEST_NULL_PROC ((rpcproc_t)2)
#define RPCTEST_NULL_BATCH_PROC ((rpcproc_t)3)
/*
* By convention, procedure 0 takes null arguments and returns them
*/
#define NULLPROC ((rpcproc_t)0)
/*
* Below are the client handle creation routines for the various
* implementations of client side rpc. They can return NULL if a
* creation failure occurs.
*/
/*
* Generic client creation routine. Supported protocols are "udp", "tcp"
* and "unix".
* CLIENT *
* clnt_create(host, prog, vers, prot);
* char *host; -- hostname
* u_long prog; -- program number
* u_long vers; -- version number
* char *prot; -- protocol
*/
__BEGIN_DECLS
extern CLIENT *clnt_create(char *, u_long, u_long, char *);
__END_DECLS
/*
* Added for compatibility to old rpc 4.0. Obsoleted by clnt_vc_create().
*/
extern CLIENT *clntunix_create(struct sockaddr_un *,
u_long, u_long, int *, u_int, u_int);
__END_DECLS
/*
* Print why creation failed
*/
__BEGIN_DECLS
extern void clnt_pcreateerror(const char *); /* stderr */
extern char *clnt_spcreateerror(const char *); /* string */
__END_DECLS
/*
* Like clnt_perror(), but is more verbose in its output
*/
__BEGIN_DECLS
extern void clnt_perrno(enum clnt_stat); /* stderr */
extern char *clnt_sperrno(enum clnt_stat); /* string */
__END_DECLS
/*
* Print an English error message, given the client error code
*/
__BEGIN_DECLS
extern void clnt_perror(CLIENT *, const char *); /* stderr */
extern char *clnt_sperror(CLIENT *, const char *); /* string */
__END_DECLS
/*
* If a creation fails, the following allows the user to figure out why.
*/
struct rpc_createerr {
enum clnt_stat cf_stat;
struct rpc_err cf_error; /* useful when cf_stat == RPC_PMAPFAILURE */
};
extern struct rpc_createerr rpc_createerr;
#define UDPMSGSIZE 8800 /* rpc imposed limit on udp msg size */
#define RPCSMALLMSGSIZE 400 /* a more reasonable packet size */
/* For backward compatibility */
#include <rpc/clnt_soc.h>
#endif /* !_RPC_CLNT_H_ */
