1/* $NetBSD: rpc_callmsg.c,v 1.16 2000/07/14 08:40:42 fvdl Exp $ */
2
3/*
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31
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38
39/*
40 * rpc_callmsg.c
41 *
42 * Copyright (C) 1984, Sun Microsystems, Inc.
43 *
44 */
45
46#include "namespace.h"
47#include <assert.h>
48#include <stdlib.h>
49#include <string.h>
50
51#include <rpc/rpc.h>
52#include "un-namespace.h"
53
54/*
55 * XDR a call message
56 */
57bool_t
58xdr_callmsg(xdrs, cmsg)
59 XDR *xdrs;
60 struct rpc_msg *cmsg;
61{
62 int32_t *buf;
63 struct opaque_auth *oa;
64
65 assert(xdrs != NULL);
66 assert(cmsg != NULL);
67
68 if (xdrs->x_op == XDR_ENCODE) {
69 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
70 return (FALSE);
71 }
72 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
73 return (FALSE);
74 }
75 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
76 + RNDUP(cmsg->rm_call.cb_cred.oa_length)
77 + 2 * BYTES_PER_XDR_UNIT
78 + RNDUP(cmsg->rm_call.cb_verf.oa_length));
79 if (buf != NULL) {
80 IXDR_PUT_INT32(buf, cmsg->rm_xid);
81 IXDR_PUT_ENUM(buf, cmsg->rm_direction);
82 if (cmsg->rm_direction != CALL) {
83 return (FALSE);
84 }
85 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers);
86 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
87 return (FALSE);
88 }
89 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog);
90 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers);
91 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc);
92 oa = &cmsg->rm_call.cb_cred;
93 IXDR_PUT_ENUM(buf, oa->oa_flavor);
94 IXDR_PUT_INT32(buf, oa->oa_length);
95 if (oa->oa_length) {
96 memmove(buf, oa->oa_base, oa->oa_length);
97 buf += RNDUP(oa->oa_length) / sizeof (int32_t);
98 }
99 oa = &cmsg->rm_call.cb_verf;
100 IXDR_PUT_ENUM(buf, oa->oa_flavor);
101 IXDR_PUT_INT32(buf, oa->oa_length);
102 if (oa->oa_length) {
103 memmove(buf, oa->oa_base, oa->oa_length);
104 /* no real need....
105 buf += RNDUP(oa->oa_length) / sizeof (int32_t);
106 */
107 }
108 return (TRUE);
109 }
110 }
111 if (xdrs->x_op == XDR_DECODE) {
112 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
113 if (buf != NULL) {
114 cmsg->rm_xid = IXDR_GET_U_INT32(buf);
115 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
116 if (cmsg->rm_direction != CALL) {
117 return (FALSE);
118 }
119 cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf);
120 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
121 return (FALSE);
122 }
123 cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf);
124 cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf);
125 cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf);
126 oa = &cmsg->rm_call.cb_cred;
127 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
128 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf);
129 if (oa->oa_length) {
130 if (oa->oa_length > MAX_AUTH_BYTES) {
131 return (FALSE);
132 }
133 if (oa->oa_base == NULL) {
134 oa->oa_base = (caddr_t)
135 mem_alloc(oa->oa_length);
136 if (oa->oa_base == NULL)
137 return (FALSE);
138 }
139 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
140 if (buf == NULL) {
141 if (xdr_opaque(xdrs, oa->oa_base,
142 oa->oa_length) == FALSE) {
143 return (FALSE);
144 }
145 } else {
146 memmove(oa->oa_base, buf,
147 oa->oa_length);
148 /* no real need....
149 buf += RNDUP(oa->oa_length) /
150 sizeof (int32_t);
151 */
152 }
153 }
154 oa = &cmsg->rm_call.cb_verf;
155 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
156 if (buf == NULL) {
157 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
158 xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
159 return (FALSE);
160 }
161 } else {
162 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
163 oa->oa_length = (u_int)IXDR_GET_U_INT32(buf);
164 }
165 if (oa->oa_length) {
166 if (oa->oa_length > MAX_AUTH_BYTES) {
167 return (FALSE);
168 }
169 if (oa->oa_base == NULL) {
170 oa->oa_base = (caddr_t)
171 mem_alloc(oa->oa_length);
172 if (oa->oa_base == NULL)
173 return (FALSE);
174 }
175 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
176 if (buf == NULL) {
177 if (xdr_opaque(xdrs, oa->oa_base,
178 oa->oa_length) == FALSE) {
179 return (FALSE);
180 }
181 } else {
182 memmove(oa->oa_base, buf,
183 oa->oa_length);
184 /* no real need...
185 buf += RNDUP(oa->oa_length) /
186 sizeof (int32_t);
187 */
188 }
189 }
190 return (TRUE);
191 }
192 }
193 if (
194 xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) &&
195 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) &&
196 (cmsg->rm_direction == CALL) &&
197 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
198 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
199 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) &&
200 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) &&
201 xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) &&
202 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
203 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
204 return (FALSE);
205}
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