1 /* @(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC */
2 /*
3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4 * unrestricted use provided that this legend is included on all tape
5 * media and as a part of the software program in whole or part. Users
6 * may copy or modify Sun RPC without charge, but are not authorized
7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
9 *
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 *
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
17 *
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
21 *
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
25 *
26 * Sun Microsystems, Inc.
27 * 2550 Garcia Avenue
28 * Mountain View, California 94043
29 */
30 #if !defined(lint) && defined(SCCSIDS)
31 static char sccsid[] = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";
32 #endif
33
34 /*
35 * rpc_callmsg.c
36 *
37 * Copyright (C) 1984, Sun Microsystems, Inc.
38 *
39 */
40
41 #include <sys/param.h>
42
43 #include <rpc/rpc.h>
44
45 /*
46 * XDR a call message
47 */
48 bool_t
xdr_callmsg(xdrs,cmsg)49 xdr_callmsg(xdrs, cmsg)
50 register XDR *xdrs;
51 register struct rpc_msg *cmsg;
52 {
53 register long *buf;
54 register struct opaque_auth *oa;
55
56 if (xdrs->x_op == XDR_ENCODE) {
57 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
58 return (FALSE);
59 }
60 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
61 return (FALSE);
62 }
63 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
64 + RNDUP(cmsg->rm_call.cb_cred.oa_length)
65 + 2 * BYTES_PER_XDR_UNIT
66 + RNDUP(cmsg->rm_call.cb_verf.oa_length));
67 if (buf != NULL) {
68 IXDR_PUT_LONG(buf, cmsg->rm_xid);
69 IXDR_PUT_ENUM(buf, cmsg->rm_direction);
70 if (cmsg->rm_direction != CALL) {
71 return (FALSE);
72 }
73 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers);
74 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
75 return (FALSE);
76 }
77 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog);
78 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers);
79 IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc);
80 oa = &cmsg->rm_call.cb_cred;
81 IXDR_PUT_ENUM(buf, oa->oa_flavor);
82 IXDR_PUT_LONG(buf, oa->oa_length);
83 if (oa->oa_length) {
84 bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length);
85 buf += RNDUP(oa->oa_length) / sizeof (long);
86 }
87 oa = &cmsg->rm_call.cb_verf;
88 IXDR_PUT_ENUM(buf, oa->oa_flavor);
89 IXDR_PUT_LONG(buf, oa->oa_length);
90 if (oa->oa_length) {
91 bcopy(oa->oa_base, (caddr_t)buf, oa->oa_length);
92 /* no real need....
93 buf += RNDUP(oa->oa_length) / sizeof (long);
94 */
95 }
96 return (TRUE);
97 }
98 }
99 if (xdrs->x_op == XDR_DECODE) {
100 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
101 if (buf != NULL) {
102 cmsg->rm_xid = IXDR_GET_LONG(buf);
103 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
104 if (cmsg->rm_direction != CALL) {
105 return (FALSE);
106 }
107 cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG(buf);
108 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
109 return (FALSE);
110 }
111 cmsg->rm_call.cb_prog = IXDR_GET_LONG(buf);
112 cmsg->rm_call.cb_vers = IXDR_GET_LONG(buf);
113 cmsg->rm_call.cb_proc = IXDR_GET_LONG(buf);
114 oa = &cmsg->rm_call.cb_cred;
115 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
116 oa->oa_length = IXDR_GET_LONG(buf);
117 if (oa->oa_length) {
118 if (oa->oa_length > MAX_AUTH_BYTES) {
119 return (FALSE);
120 }
121 if (oa->oa_base == NULL) {
122 oa->oa_base = (caddr_t)
123 mem_alloc(oa->oa_length);
124 }
125 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
126 if (buf == NULL) {
127 if (xdr_opaque(xdrs, oa->oa_base,
128 oa->oa_length) == FALSE) {
129 return (FALSE);
130 }
131 } else {
132 bcopy((caddr_t)buf, oa->oa_base,
133 oa->oa_length);
134 /* no real need....
135 buf += RNDUP(oa->oa_length) /
136 sizeof (long);
137 */
138 }
139 }
140 oa = &cmsg->rm_call.cb_verf;
141 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
142 if (buf == NULL) {
143 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
144 xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
145 return (FALSE);
146 }
147 } else {
148 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
149 oa->oa_length = IXDR_GET_LONG(buf);
150 }
151 if (oa->oa_length) {
152 if (oa->oa_length > MAX_AUTH_BYTES) {
153 return (FALSE);
154 }
155 if (oa->oa_base == NULL) {
156 oa->oa_base = (caddr_t)
157 mem_alloc(oa->oa_length);
158 }
159 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
160 if (buf == NULL) {
161 if (xdr_opaque(xdrs, oa->oa_base,
162 oa->oa_length) == FALSE) {
163 return (FALSE);
164 }
165 } else {
166 bcopy((caddr_t)buf, oa->oa_base,
167 oa->oa_length);
168 /* no real need...
169 buf += RNDUP(oa->oa_length) /
170 sizeof (long);
171 */
172 }
173 }
174 return (TRUE);
175 }
176 }
177 if (
178 xdr_u_long(xdrs, &(cmsg->rm_xid)) &&
179 xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) &&
180 (cmsg->rm_direction == CALL) &&
181 xdr_u_long(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
182 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
183 xdr_u_long(xdrs, &(cmsg->rm_call.cb_prog)) &&
184 xdr_u_long(xdrs, &(cmsg->rm_call.cb_vers)) &&
185 xdr_u_long(xdrs, &(cmsg->rm_call.cb_proc)) &&
186 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
187 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
188 return (FALSE);
189 }
190
191