OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [librpc/] [src/] [rpc/] [rpc_prot.c] - Blame information for rev 173

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback
/*
2
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3
 * unrestricted use provided that this legend is included on all tape
4
 * media and as a part of the software program in whole or part.  Users
5
 * may copy or modify Sun RPC without charge, but are not authorized
6
 * to license or distribute it to anyone else except as part of a product or
7
 * program developed by the user.
8
 *
9
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12
 *
13
 * Sun RPC is provided with no support and without any obligation on the
14
 * part of Sun Microsystems, Inc. to assist in its use, correction,
15
 * modification or enhancement.
16
 *
17
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19
 * OR ANY PART THEREOF.
20
 *
21
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22
 * or profits or other special, indirect and consequential damages, even if
23
 * Sun has been advised of the possibility of such damages.
24
 *
25
 * Sun Microsystems, Inc.
26
 * 2550 Garcia Avenue
27
 * Mountain View, California  94043
28
 */
29
 
30
#if defined(LIBC_SCCS) && !defined(lint)
31
/*static char *sccsid = "from: @(#)rpc_prot.c 1.36 87/08/11 Copyr 1984 Sun Micro";*/
32
/*static char *sccsid = "from: @(#)rpc_prot.c   2.3 88/08/07 4.0 RPCSRC";*/
33
static char *rcsid = "$FreeBSD: src/lib/libc/rpc/rpc_prot.c,v 1.8 1999/08/28 00:00:46 peter Exp $";
34
#endif
35
 
36
/*
37
 * rpc_prot.c
38
 *
39
 * Copyright (C) 1984, Sun Microsystems, Inc.
40
 *
41
 * This set of routines implements the rpc message definition,
42
 * its serializer and some common rpc utility routines.
43
 * The routines are meant for various implementations of rpc -
44
 * they are NOT for the rpc client or rpc service implementations!
45
 * Because authentication stuff is easy and is part of rpc, the opaque
46
 * routines are also in this program.
47
 */
48
 
49
#include <sys/param.h>
50
 
51
#include <rpc/rpc.h>
52
 
53
/* * * * * * * * * * * * * * XDR Authentication * * * * * * * * * * * */
54
 
55
struct opaque_auth _null_auth;
56
 
57
/*
58
 * XDR an opaque authentication struct
59
 * (see auth.h)
60
 */
61
bool_t
62
xdr_opaque_auth(xdrs, ap)
63
        register XDR *xdrs;
64
        register struct opaque_auth *ap;
65
{
66
 
67
        if (xdr_enum(xdrs, &(ap->oa_flavor)))
68
                return (xdr_bytes(xdrs, &ap->oa_base,
69
                        &ap->oa_length, MAX_AUTH_BYTES));
70
        return (FALSE);
71
}
72
 
73
/*
74
 * XDR a DES block
75
 */
76
bool_t
77
xdr_des_block(xdrs, blkp)
78
        register XDR *xdrs;
79
        register des_block *blkp;
80
{
81
        return (xdr_opaque(xdrs, (caddr_t)blkp, sizeof(des_block)));
82
}
83
 
84
/* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */
85
 
86
/*
87
 * XDR the MSG_ACCEPTED part of a reply message union
88
 */
89
bool_t
90
xdr_accepted_reply(xdrs, ar)
91
        register XDR *xdrs;
92
        register struct accepted_reply *ar;
93
{
94
 
95
        /* personalized union, rather than calling xdr_union */
96
        if (! xdr_opaque_auth(xdrs, &(ar->ar_verf)))
97
                return (FALSE);
98
        if (! xdr_enum(xdrs, (enum_t *)&(ar->ar_stat)))
99
                return (FALSE);
100
        switch (ar->ar_stat) {
101
 
102
        case SUCCESS:
103
                return ((*(ar->ar_results.proc))(xdrs, ar->ar_results.where));
104
 
105
        case PROG_MISMATCH:
106
                if (! xdr_u_int32_t(xdrs, &(ar->ar_vers.low)))
107
                        return (FALSE);
108
                return (xdr_u_int32_t(xdrs, &(ar->ar_vers.high)));
109
        default:
110
                break;
111
        }
112
        return (TRUE);  /* TRUE => open ended set of problems */
113
}
114
 
115
/*
116
 * XDR the MSG_DENIED part of a reply message union
117
 */
118
bool_t
119
xdr_rejected_reply(xdrs, rr)
120
        register XDR *xdrs;
121
        register struct rejected_reply *rr;
122
{
123
 
124
        /* personalized union, rather than calling xdr_union */
125
        if (! xdr_enum(xdrs, (enum_t *)&(rr->rj_stat)))
126
                return (FALSE);
127
        switch (rr->rj_stat) {
128
 
129
        case RPC_MISMATCH:
130
                if (! xdr_u_int32_t(xdrs, &(rr->rj_vers.low)))
131
                        return (FALSE);
132
                return (xdr_u_int32_t(xdrs, &(rr->rj_vers.high)));
133
 
134
        case AUTH_ERROR:
135
                return (xdr_enum(xdrs, (enum_t *)&(rr->rj_why)));
136
        }
137
        return (FALSE);
138
}
139
 
140
static struct xdr_discrim reply_dscrm[3] = {
141
        { (int)MSG_ACCEPTED, xdr_accepted_reply },
142
        { (int)MSG_DENIED, xdr_rejected_reply },
143
        { __dontcare__, NULL_xdrproc_t } };
144
 
145
/*
146
 * XDR a reply message
147
 */
148
bool_t
149
xdr_replymsg(xdrs, rmsg)
150
        register XDR *xdrs;
151
        register struct rpc_msg *rmsg;
152
{
153
        if (
154
            xdr_u_int32_t(xdrs, &(rmsg->rm_xid)) &&
155
            xdr_enum(xdrs, (enum_t *)&(rmsg->rm_direction)) &&
156
            (rmsg->rm_direction == REPLY) )
157
                return (xdr_union(xdrs, (enum_t *)&(rmsg->rm_reply.rp_stat),
158
                   (caddr_t)&(rmsg->rm_reply.ru), reply_dscrm, NULL_xdrproc_t));
159
        return (FALSE);
160
}
161
 
162
 
163
/*
164
 * Serializes the "static part" of a call message header.
165
 * The fields include: rm_xid, rm_direction, rpcvers, prog, and vers.
166
 * The rm_xid is not really static, but the user can easily munge on the fly.
167
 */
168
bool_t
169
xdr_callhdr(xdrs, cmsg)
170
        register XDR *xdrs;
171
        register struct rpc_msg *cmsg;
172
{
173
 
174
        cmsg->rm_direction = CALL;
175
        cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION;
176
        if (
177
            (xdrs->x_op == XDR_ENCODE) &&
178
            xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) &&
179
            xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) &&
180
            xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
181
            xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) )
182
            return (xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)));
183
        return (FALSE);
184
}
185
 
186
/* ************************** Client utility routine ************* */
187
 
188
static void
189
accepted(acpt_stat, error)
190
        register enum accept_stat acpt_stat;
191
        register struct rpc_err *error;
192
{
193
 
194
        switch (acpt_stat) {
195
 
196
        case PROG_UNAVAIL:
197
                error->re_status = RPC_PROGUNAVAIL;
198
                return;
199
 
200
        case PROG_MISMATCH:
201
                error->re_status = RPC_PROGVERSMISMATCH;
202
                return;
203
 
204
        case PROC_UNAVAIL:
205
                error->re_status = RPC_PROCUNAVAIL;
206
                return;
207
 
208
        case GARBAGE_ARGS:
209
                error->re_status = RPC_CANTDECODEARGS;
210
                return;
211
 
212
        case SYSTEM_ERR:
213
                error->re_status = RPC_SYSTEMERROR;
214
                return;
215
 
216
        case SUCCESS:
217
                error->re_status = RPC_SUCCESS;
218
                return;
219
        }
220
        /* something's wrong, but we don't know what ... */
221
        error->re_status = RPC_FAILED;
222
        error->re_lb.s1 = (long)MSG_ACCEPTED;
223
        error->re_lb.s2 = (long)acpt_stat;
224
}
225
 
226
static void
227
rejected(rjct_stat, error)
228
        register enum reject_stat rjct_stat;
229
        register struct rpc_err *error;
230
{
231
 
232
        switch (rjct_stat) {
233
 
234
        case RPC_VERSMISMATCH:
235
                error->re_status = RPC_VERSMISMATCH;
236
                return;
237
 
238
        case AUTH_ERROR:
239
                error->re_status = RPC_AUTHERROR;
240
                return;
241
        default:
242
                break;
243
        }
244
        /* something's wrong, but we don't know what ... */
245
        error->re_status = RPC_FAILED;
246
        error->re_lb.s1 = (long)MSG_DENIED;
247
        error->re_lb.s2 = (long)rjct_stat;
248
}
249
 
250
/*
251
 * given a reply message, fills in the error
252
 */
253
void
254
_seterr_reply(msg, error)
255
        register struct rpc_msg *msg;
256
        register struct rpc_err *error;
257
{
258
 
259
        /* optimized for normal, SUCCESSful case */
260
        switch (msg->rm_reply.rp_stat) {
261
 
262
        case MSG_ACCEPTED:
263
                if (msg->acpted_rply.ar_stat == SUCCESS) {
264
                        error->re_status = RPC_SUCCESS;
265
                        return;
266
                };
267
                accepted(msg->acpted_rply.ar_stat, error);
268
                break;
269
 
270
        case MSG_DENIED:
271
                rejected(msg->rjcted_rply.rj_stat, error);
272
                break;
273
 
274
        default:
275
                error->re_status = RPC_FAILED;
276
                error->re_lb.s1 = (long)(msg->rm_reply.rp_stat);
277
                break;
278
        }
279
        switch (error->re_status) {
280
 
281
        case RPC_VERSMISMATCH:
282
                error->re_vers.low = msg->rjcted_rply.rj_vers.low;
283
                error->re_vers.high = msg->rjcted_rply.rj_vers.high;
284
                break;
285
 
286
        case RPC_AUTHERROR:
287
                error->re_why = msg->rjcted_rply.rj_why;
288
                break;
289
 
290
        case RPC_PROGVERSMISMATCH:
291
                error->re_vers.low = msg->acpted_rply.ar_vers.low;
292
                error->re_vers.high = msg->acpted_rply.ar_vers.high;
293
                break;
294
        default:
295
                break;
296
        }
297
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.