mirror of
https://git.rtems.org/rtems-libbsd/
synced 2025-10-15 17:46:35 +08:00
RPC(3): Import from FreeBSD
This commit is contained in:
Sebastian Huber
373
freebsd/lib/libc/rpc/rpc_prot.c
Normal file
373
freebsd/lib/libc/rpc/rpc_prot.c
Normal file
@@ -0,0 +1,373 @@
|
||||
#include <machine/rtems-bsd-user-space.h>
|
||||
|
||||
/* $NetBSD: rpc_prot.c,v 1.16 2000/06/02 23:11:13 fvdl Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2009, Sun Microsystems, 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 Sun Microsystems, 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.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
static char *sccsid2 = "@(#)rpc_prot.c 1.36 87/08/11 Copyr 1984 Sun Micro";
|
||||
static char *sccsid = "@(#)rpc_prot.c 2.3 88/08/07 4.0 RPCSRC";
|
||||
#endif
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
/*
|
||||
* rpc_prot.c
|
||||
*
|
||||
* Copyright (C) 1984, Sun Microsystems, Inc.
|
||||
*
|
||||
* This set of routines implements the rpc message definition,
|
||||
* its serializer and some common rpc utility routines.
|
||||
* The routines are meant for various implementations of rpc -
|
||||
* they are NOT for the rpc client or rpc service implementations!
|
||||
* Because authentication stuff is easy and is part of rpc, the opaque
|
||||
* routines are also in this program.
|
||||
*/
|
||||
|
||||
#include "namespace.h"
|
||||
#include <rtems/bsd/sys/param.h>
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
#include <rpc/rpc.h>
|
||||
#include "un-namespace.h"
|
||||
|
||||
static void accepted(enum accept_stat, struct rpc_err *);
|
||||
static void rejected(enum reject_stat, struct rpc_err *);
|
||||
|
||||
/* * * * * * * * * * * * * * XDR Authentication * * * * * * * * * * * */
|
||||
|
||||
extern struct opaque_auth _null_auth;
|
||||
|
||||
/*
|
||||
* XDR an opaque authentication struct
|
||||
* (see auth.h)
|
||||
*/
|
||||
bool_t
|
||||
xdr_opaque_auth(xdrs, ap)
|
||||
XDR *xdrs;
|
||||
struct opaque_auth *ap;
|
||||
{
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(ap != NULL);
|
||||
|
||||
if (xdr_enum(xdrs, &(ap->oa_flavor)))
|
||||
return (xdr_bytes(xdrs, &ap->oa_base,
|
||||
&ap->oa_length, MAX_AUTH_BYTES));
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
/*
|
||||
* XDR a DES block
|
||||
*/
|
||||
bool_t
|
||||
xdr_des_block(xdrs, blkp)
|
||||
XDR *xdrs;
|
||||
des_block *blkp;
|
||||
{
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(blkp != NULL);
|
||||
|
||||
return (xdr_opaque(xdrs, (caddr_t)(void *)blkp, sizeof(des_block)));
|
||||
}
|
||||
|
||||
/* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */
|
||||
|
||||
/*
|
||||
* XDR the MSG_ACCEPTED part of a reply message union
|
||||
*/
|
||||
bool_t
|
||||
xdr_accepted_reply(xdrs, ar)
|
||||
XDR *xdrs;
|
||||
struct accepted_reply *ar;
|
||||
{
|
||||
enum accept_stat *par_stat;
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(ar != NULL);
|
||||
|
||||
par_stat = &ar->ar_stat;
|
||||
|
||||
/* personalized union, rather than calling xdr_union */
|
||||
if (! xdr_opaque_auth(xdrs, &(ar->ar_verf)))
|
||||
return (FALSE);
|
||||
if (! xdr_enum(xdrs, (enum_t *) par_stat))
|
||||
return (FALSE);
|
||||
switch (ar->ar_stat) {
|
||||
|
||||
case SUCCESS:
|
||||
return ((*(ar->ar_results.proc))(xdrs, ar->ar_results.where));
|
||||
|
||||
case PROG_MISMATCH:
|
||||
if (! xdr_u_int32_t(xdrs, &(ar->ar_vers.low)))
|
||||
return (FALSE);
|
||||
return (xdr_u_int32_t(xdrs, &(ar->ar_vers.high)));
|
||||
|
||||
case GARBAGE_ARGS:
|
||||
case SYSTEM_ERR:
|
||||
case PROC_UNAVAIL:
|
||||
case PROG_UNAVAIL:
|
||||
break;
|
||||
}
|
||||
return (TRUE); /* TRUE => open ended set of problems */
|
||||
}
|
||||
|
||||
/*
|
||||
* XDR the MSG_DENIED part of a reply message union
|
||||
*/
|
||||
bool_t
|
||||
xdr_rejected_reply(xdrs, rr)
|
||||
XDR *xdrs;
|
||||
struct rejected_reply *rr;
|
||||
{
|
||||
enum reject_stat *prj_stat;
|
||||
enum auth_stat *prj_why;
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(rr != NULL);
|
||||
|
||||
prj_stat = &rr->rj_stat;
|
||||
|
||||
/* personalized union, rather than calling xdr_union */
|
||||
if (! xdr_enum(xdrs, (enum_t *) prj_stat))
|
||||
return (FALSE);
|
||||
switch (rr->rj_stat) {
|
||||
|
||||
case RPC_MISMATCH:
|
||||
if (! xdr_u_int32_t(xdrs, &(rr->rj_vers.low)))
|
||||
return (FALSE);
|
||||
return (xdr_u_int32_t(xdrs, &(rr->rj_vers.high)));
|
||||
|
||||
case AUTH_ERROR:
|
||||
prj_why = &rr->rj_why;
|
||||
return (xdr_enum(xdrs, (enum_t *) prj_why));
|
||||
}
|
||||
/* NOTREACHED */
|
||||
assert(0);
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
static const struct xdr_discrim reply_dscrm[3] = {
|
||||
{ (int)MSG_ACCEPTED, (xdrproc_t)xdr_accepted_reply },
|
||||
{ (int)MSG_DENIED, (xdrproc_t)xdr_rejected_reply },
|
||||
{ __dontcare__, NULL_xdrproc_t } };
|
||||
|
||||
/*
|
||||
* XDR a reply message
|
||||
*/
|
||||
bool_t
|
||||
xdr_replymsg(xdrs, rmsg)
|
||||
XDR *xdrs;
|
||||
struct rpc_msg *rmsg;
|
||||
{
|
||||
enum msg_type *prm_direction;
|
||||
enum reply_stat *prp_stat;
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(rmsg != NULL);
|
||||
|
||||
prm_direction = &rmsg->rm_direction;
|
||||
prp_stat = &rmsg->rm_reply.rp_stat;
|
||||
|
||||
if (
|
||||
xdr_u_int32_t(xdrs, &(rmsg->rm_xid)) &&
|
||||
xdr_enum(xdrs, (enum_t *) prm_direction) &&
|
||||
(rmsg->rm_direction == REPLY) )
|
||||
return (xdr_union(xdrs, (enum_t *) prp_stat,
|
||||
(caddr_t)(void *)&(rmsg->rm_reply.ru), reply_dscrm,
|
||||
NULL_xdrproc_t));
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Serializes the "static part" of a call message header.
|
||||
* The fields include: rm_xid, rm_direction, rpcvers, prog, and vers.
|
||||
* The rm_xid is not really static, but the user can easily munge on the fly.
|
||||
*/
|
||||
bool_t
|
||||
xdr_callhdr(xdrs, cmsg)
|
||||
XDR *xdrs;
|
||||
struct rpc_msg *cmsg;
|
||||
{
|
||||
enum msg_type *prm_direction;
|
||||
|
||||
assert(xdrs != NULL);
|
||||
assert(cmsg != NULL);
|
||||
|
||||
prm_direction = &cmsg->rm_direction;
|
||||
|
||||
cmsg->rm_direction = CALL;
|
||||
cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION;
|
||||
if (
|
||||
(xdrs->x_op == XDR_ENCODE) &&
|
||||
xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) &&
|
||||
xdr_enum(xdrs, (enum_t *) prm_direction) &&
|
||||
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
|
||||
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) )
|
||||
return (xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)));
|
||||
return (FALSE);
|
||||
}
|
||||
|
||||
/* ************************** Client utility routine ************* */
|
||||
|
||||
static void
|
||||
accepted(acpt_stat, error)
|
||||
enum accept_stat acpt_stat;
|
||||
struct rpc_err *error;
|
||||
{
|
||||
|
||||
assert(error != NULL);
|
||||
|
||||
switch (acpt_stat) {
|
||||
|
||||
case PROG_UNAVAIL:
|
||||
error->re_status = RPC_PROGUNAVAIL;
|
||||
return;
|
||||
|
||||
case PROG_MISMATCH:
|
||||
error->re_status = RPC_PROGVERSMISMATCH;
|
||||
return;
|
||||
|
||||
case PROC_UNAVAIL:
|
||||
error->re_status = RPC_PROCUNAVAIL;
|
||||
return;
|
||||
|
||||
case GARBAGE_ARGS:
|
||||
error->re_status = RPC_CANTDECODEARGS;
|
||||
return;
|
||||
|
||||
case SYSTEM_ERR:
|
||||
error->re_status = RPC_SYSTEMERROR;
|
||||
return;
|
||||
|
||||
case SUCCESS:
|
||||
error->re_status = RPC_SUCCESS;
|
||||
return;
|
||||
}
|
||||
/* NOTREACHED */
|
||||
/* something's wrong, but we don't know what ... */
|
||||
error->re_status = RPC_FAILED;
|
||||
error->re_lb.s1 = (int32_t)MSG_ACCEPTED;
|
||||
error->re_lb.s2 = (int32_t)acpt_stat;
|
||||
}
|
||||
|
||||
static void
|
||||
rejected(rjct_stat, error)
|
||||
enum reject_stat rjct_stat;
|
||||
struct rpc_err *error;
|
||||
{
|
||||
|
||||
assert(error != NULL);
|
||||
|
||||
switch (rjct_stat) {
|
||||
case RPC_MISMATCH:
|
||||
error->re_status = RPC_VERSMISMATCH;
|
||||
return;
|
||||
|
||||
case AUTH_ERROR:
|
||||
error->re_status = RPC_AUTHERROR;
|
||||
return;
|
||||
}
|
||||
/* something's wrong, but we don't know what ... */
|
||||
/* NOTREACHED */
|
||||
error->re_status = RPC_FAILED;
|
||||
error->re_lb.s1 = (int32_t)MSG_DENIED;
|
||||
error->re_lb.s2 = (int32_t)rjct_stat;
|
||||
}
|
||||
|
||||
/*
|
||||
* given a reply message, fills in the error
|
||||
*/
|
||||
void
|
||||
_seterr_reply(msg, error)
|
||||
struct rpc_msg *msg;
|
||||
struct rpc_err *error;
|
||||
{
|
||||
|
||||
assert(msg != NULL);
|
||||
assert(error != NULL);
|
||||
|
||||
/* optimized for normal, SUCCESSful case */
|
||||
switch (msg->rm_reply.rp_stat) {
|
||||
|
||||
case MSG_ACCEPTED:
|
||||
if (msg->acpted_rply.ar_stat == SUCCESS) {
|
||||
error->re_status = RPC_SUCCESS;
|
||||
return;
|
||||
}
|
||||
accepted(msg->acpted_rply.ar_stat, error);
|
||||
break;
|
||||
|
||||
case MSG_DENIED:
|
||||
rejected(msg->rjcted_rply.rj_stat, error);
|
||||
break;
|
||||
|
||||
default:
|
||||
error->re_status = RPC_FAILED;
|
||||
error->re_lb.s1 = (int32_t)(msg->rm_reply.rp_stat);
|
||||
break;
|
||||
}
|
||||
switch (error->re_status) {
|
||||
|
||||
case RPC_VERSMISMATCH:
|
||||
error->re_vers.low = msg->rjcted_rply.rj_vers.low;
|
||||
error->re_vers.high = msg->rjcted_rply.rj_vers.high;
|
||||
break;
|
||||
|
||||
case RPC_AUTHERROR:
|
||||
error->re_why = msg->rjcted_rply.rj_why;
|
||||
break;
|
||||
|
||||
case RPC_PROGVERSMISMATCH:
|
||||
error->re_vers.low = msg->acpted_rply.ar_vers.low;
|
||||
error->re_vers.high = msg->acpted_rply.ar_vers.high;
|
||||
break;
|
||||
|
||||
case RPC_FAILED:
|
||||
case RPC_SUCCESS:
|
||||
case RPC_PROGNOTREGISTERED:
|
||||
case RPC_PMAPFAILURE:
|
||||
case RPC_UNKNOWNPROTO:
|
||||
case RPC_UNKNOWNHOST:
|
||||
case RPC_SYSTEMERROR:
|
||||
case RPC_CANTDECODEARGS:
|
||||
case RPC_PROCUNAVAIL:
|
||||
case RPC_PROGUNAVAIL:
|
||||
case RPC_TIMEDOUT:
|
||||
case RPC_CANTRECV:
|
||||
case RPC_CANTSEND:
|
||||
case RPC_CANTDECODERES:
|
||||
case RPC_CANTENCODEARGS:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user