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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, /* unknown 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;
* 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) */