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/* @(#)clnt.h 2.1 88/07/29 4.0 RPCSRC; from 1.31 88/02/08 SMI*/ /* * Copyright (c) 2010, Oracle America, Inc. * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * * Neither the name of the "Oracle America, Inc." nor the names of * its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * clnt.h - Client side remote procedure call interface. */ #ifndef GSSRPC_CLNT_H #define GSSRPC_CLNT_H GSSRPC__BEGIN_DECLS /* * 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; /* realated system error */ enum auth_stat RE_why; /* why the auth error occurred */ struct { rpcvers_t low; /* lowest verion supported */ rpcvers_t high; /* highest verion 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, see e.g. rpc_udp.c. * Client is responsible for initializing auth, see e.g. auth_none.c. */ typedef struct CLIENT { AUTH *cl_auth; /* authenticator */ struct clnt_ops { /* call remote procedure */ enum clnt_stat (*cl_call)(struct CLIENT *, rpcproc_t, xdrproc_t, void *, xdrproc_t, void *, struct timeval); /* abort a call */ void (*cl_abort)(struct CLIENT *); /* get specific error code */ void (*cl_geterr)(struct CLIENT *, struct rpc_err *); /* frees results */ bool_t (*cl_freeres)(struct CLIENT *, xdrproc_t, void *); /* destroy this structure */ void (*cl_destroy)(struct CLIENT *); /* the ioctl() of rpc */ /* XXX CITI makes 2nd arg take u_int */ bool_t (*cl_control)(struct CLIENT *, int, void *); } *cl_ops; void *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; * rpcproc_t 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, 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; * caddr_t 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; * 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 both udp and tcp transports */ #define CLSET_TIMEOUT 1 /* set timeout (timeval) */ #define CLGET_TIMEOUT 2 /* get timeout (timeval) */ #define CLGET_SERVER_ADDR 3 /* get server's address (sockaddr) */ /* * udp only control operations */ #define CLSET_RETRY_TIMEOUT 4 /* set retry timeout (timeval) */ #define CLGET_RETRY_TIMEOUT 5 /* get retry timeout (timeval) */ /* * new control operations */ #define CLGET_LOCAL_ADDR 6 /* get local address (sockaddr, getsockname)*/ /* * 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 accessable 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. */ /* * Memory based rpc (for speed check and testing) * CLIENT * * clntraw_create(prog, vers) * rpcprog_t prog; * rpcvers_t vers; */ extern CLIENT *clntraw_create(rpcprog_t, rpcvers_t); /* * Generic client creation routine. Supported protocols are "udp" and "tcp" */ extern CLIENT *clnt_create(char *, rpcprog_t, rpcvers_t, char *); /* * TCP based rpc * CLIENT * * clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz) * struct sockaddr_in *raddr; * rpcprog_t prog; * rpcvers_t version; * register int *sockp; * u_int sendsz; * u_int recvsz; */ extern CLIENT *clnttcp_create(struct sockaddr_in *, rpcprog_t, rpcvers_t, int *, u_int, u_int); /* * UDP based rpc. * CLIENT * * clntudp_create(raddr, program, version, wait, sockp) * struct sockaddr_in *raddr; * rpcprog_t program; * rpcvers_t version; * struct timeval wait; * 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; * rpcprog_t program; * rpcvers_t version; * struct timeval wait; * int *sockp; * u_int sendsz; * u_int recvsz; */ extern CLIENT *clntudp_create(struct sockaddr_in *, rpcprog_t, rpcvers_t, struct timeval, int *); extern CLIENT *clntudp_bufcreate(struct sockaddr_in *, rpcprog_t, rpcvers_t, struct timeval, int *, u_int, u_int); /* * Print why creation failed */ void clnt_pcreateerror(char *); /* stderr */ char *clnt_spcreateerror(char *); /* string */ /* * Like clnt_perror(), but is more verbose in its output */ void clnt_perrno(enum clnt_stat); /* stderr */ /* * Print an English error message, given the client error code */ void clnt_perror(CLIENT *, char *); /* stderr */ char *clnt_sperror(CLIENT *, char *); /* string */ /* * 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; /* * Copy error message to buffer. */ char *clnt_sperrno(enum clnt_stat num); /* string */ #define UDPMSGSIZE 8800 /* rpc imposed limit on udp msg size */ #define RPCSMALLMSGSIZE 400 /* a more reasonable packet size */ GSSRPC__END_DECLS #endif /* !defined(GSSRPC_CLNT_H) */