/* * Copyright (c) 2006-2018, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes */ /* @(#)clnt.h 2.1 88/07/29 4.0 RPCSRC; from 1.31 88/02/08 SMI*/ /* * 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, MERCHANTIBILITY 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 */ /* * clnt.h - Client side remote procedure call interface. * * Copyright (C) 1984, Sun Microsystems, Inc. */ #ifndef _RPC_CLNT_H #define _RPC_CLNT_H 1 #include #include #include /* * 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" */ RPC_NOBROADCAST = 21, /* Broadcasting not supported */ /* * callrpc & clnt_create errors */ RPC_UNKNOWNHOST=13, /* unknown host name */ RPC_UNKNOWNPROTO=17, /* unknown protocol */ RPC_UNKNOWNADDR = 19, /* Remote address unknown */ /* * rpcbind errors */ RPC_RPCBFAILURE=14, /* portmapper failed in its call */ #define RPC_PMAPFAILURE RPC_RPCBFAILURE RPC_PROGNOTREGISTERED=15, /* remote program is not registered */ RPC_N2AXLATEFAILURE = 22, /* Name to addr translation failed */ /* * unspecified error */ RPC_FAILED=16, RPC_INTR=18, RPC_TLIERROR=20, RPC_UDERROR=23, /* * asynchronous errors */ RPC_INPROGRESS = 24, RPC_STALERACHANDLE = 25 }; /* * Error info. */ struct rpc_err { int re_status; union { int RE_errno; /* related system error */ int RE_why; /* why the auth error occurred */ struct { unsigned long low; /* lowest verion supported */ unsigned long high; /* highest verion supported */ } RE_vers; struct { /* maybe meaningful if RPC_FAILED */ long s1; long 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, see e.g. rpc_udp.c. * Client is responsible for initializing auth, see e.g. auth_none.c. */ typedef struct CLIENT CLIENT; struct CLIENT { AUTH *cl_auth; /* authenticator */ struct clnt_ops { enum clnt_stat (*cl_call) (CLIENT *, unsigned long, xdrproc_t, char*, xdrproc_t, char*, struct timeval); /* call remote procedure */ void (*cl_abort) (void); /* abort a call */ void (*cl_geterr) (CLIENT *, struct rpc_err *); /* get specific error code */ bool_t (*cl_freeres) (CLIENT *, xdrproc_t, char*); /* frees results */ void (*cl_destroy) (CLIENT *); /* destroy this structure */ bool_t (*cl_control) (CLIENT *, int, char *); /* the ioctl() of rpc */ } *cl_ops; char* cl_private; /* private stuff */ }; /* * client side rpc interface ops * * Parameter types are: * */ /* * enum clnt_stat * CLNT_CALL(rh, proc, xargs, argsp, xres, resp, timeout) * CLIENT *rh; * unsigned long proc; * xdrproc_t xargs; * char* argsp; * xdrproc_t xres; * char* resp; * struct timeval timeout; */ #define CLNT_CALL(rh, proc, xargs, argsp, xres, resp, secs) \ ((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs)) #define clnt_call(rh, proc, xargs, argsp, xres, resp, secs) \ ((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, 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; * char* resp; */ #define CLNT_FREERES(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp)) #define clnt_freeres(rh,xres,resp) ((*(rh)->cl_ops->cl_freeres)(rh,xres,resp)) /* * bool_t * CLNT_CONTROL(cl, request, info) * CLIENT *cl; * unsigned 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 all 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) XXX */ #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) */ /* * 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 ((unsigned long)1) #define RPCTEST_VERSION ((unsigned long)1) #define RPCTEST_NULL_PROC ((unsigned long)2) #define RPCTEST_NULL_BATCH_PROC ((unsigned long)3) /* * By convention, procedure 0 takes null arguments and returns them */ #define NULLPROC ((unsigned long)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 * unsigned long prog; -- program number * u_ong vers; -- version number * char *prot; -- protocol */ extern CLIENT *clnt_create (const char *__host, const unsigned long __prog, const unsigned long __vers, const char *__prot) ; /* * UDP based rpc. * CLIENT * * clntudp_create(raddr, program, version, wait, sockp) * struct sockaddr_in *raddr; * unsigned long program; * unsigned long version; * struct timeval wait_resend; * int *sockp; * * Same as above, but you specify max packet sizes. * CLIENT * * clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz) * struct sockaddr_in *raddr; * unsigned long program; * unsigned long version; * struct timeval wait_resend; * int *sockp; * unsigned int sendsz; * unsigned int recvsz; */ extern CLIENT *clntudp_create (struct sockaddr_in *__raddr, unsigned long __program, unsigned long __version, struct timeval __wait_resend, int *__sockp); extern CLIENT *clntudp_bufcreate (struct sockaddr_in *__raddr, unsigned long __program, unsigned long __version, struct timeval __wait_resend, int *__sockp, unsigned int __sendsz, unsigned int __recvsz); extern int callrpc (const char *__host, const unsigned long __prognum, const unsigned long __versnum, const unsigned long __procnum, const xdrproc_t __inproc, const char *__in, const xdrproc_t __outproc, char *__out); #define UDPMSGSIZE 8800 /* rpc imposed limit on udp msg size */ #define RPCSMALLMSGSIZE 400 /* a more reasonable packet size */ void clnt_perror(CLIENT *rpch, const char *s); #endif /* rpc/clnt.h */