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 0
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 <string.h>
42 #include <sys/param.h>
43 #include <rpc/rpc.h>
44
45
46 /*
47 * XDR a call message
48 */
49 bool_t
xdr_callmsg(XDR * xdrs,struct rpc_msg * cmsg)50 xdr_callmsg (XDR *xdrs, struct rpc_msg *cmsg)
51 {
52 int32_t *buf;
53 struct opaque_auth *oa;
54
55 if (xdrs->x_op == XDR_ENCODE)
56 {
57 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES)
58 {
59 return (FALSE);
60 }
61 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES)
62 {
63 return (FALSE);
64 }
65 buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT
66 + RNDUP (cmsg->rm_call.cb_cred.oa_length)
67 + 2 * BYTES_PER_XDR_UNIT
68 + RNDUP (cmsg->rm_call.cb_verf.oa_length));
69 if (buf != NULL)
70 {
71 IXDR_PUT_LONG (buf, cmsg->rm_xid);
72 IXDR_PUT_ENUM (buf, cmsg->rm_direction);
73 if (cmsg->rm_direction != CALL)
74 return FALSE;
75 IXDR_PUT_LONG (buf, cmsg->rm_call.cb_rpcvers);
76 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
77 return FALSE;
78 IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
79 IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
80 IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
81 oa = &cmsg->rm_call.cb_cred;
82 IXDR_PUT_ENUM (buf, oa->oa_flavor);
83 IXDR_PUT_INT32 (buf, oa->oa_length);
84 if (oa->oa_length)
85 {
86 memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
87 buf = (int32_t *) ((char *) buf + RNDUP (oa->oa_length));
88 }
89 oa = &cmsg->rm_call.cb_verf;
90 IXDR_PUT_ENUM (buf, oa->oa_flavor);
91 IXDR_PUT_INT32 (buf, oa->oa_length);
92 if (oa->oa_length)
93 {
94 memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
95 /* no real need....
96 buf = (long *) ((char *) buf + RNDUP(oa->oa_length));
97 */
98 }
99 return TRUE;
100 }
101 }
102 if (xdrs->x_op == XDR_DECODE)
103 {
104 buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT);
105 if (buf != NULL)
106 {
107 cmsg->rm_xid = IXDR_GET_LONG (buf);
108 cmsg->rm_direction = IXDR_GET_ENUM (buf, enum msg_type);
109 if (cmsg->rm_direction != CALL)
110 {
111 return FALSE;
112 }
113 cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG (buf);
114 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
115 {
116 return FALSE;
117 }
118 cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
119 cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
120 cmsg->rm_call.cb_proc = IXDR_GET_LONG (buf);
121 oa = &cmsg->rm_call.cb_cred;
122 oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
123 oa->oa_length = IXDR_GET_INT32 (buf);
124 if (oa->oa_length)
125 {
126 if (oa->oa_length > MAX_AUTH_BYTES)
127 return FALSE;
128 if (oa->oa_base == NULL)
129 {
130 oa->oa_base = (caddr_t)
131 mem_alloc (oa->oa_length);
132 }
133 buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
134 if (buf == NULL)
135 {
136 if (xdr_opaque (xdrs, oa->oa_base,
137 oa->oa_length) == FALSE)
138 return FALSE;
139 }
140 else
141 {
142 memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
143 /* no real need....
144 buf = (long *) ((char *) buf
145 + RNDUP(oa->oa_length));
146 */
147 }
148 }
149 oa = &cmsg->rm_call.cb_verf;
150 buf = XDR_INLINE (xdrs, 2 * BYTES_PER_XDR_UNIT);
151 if (buf == NULL)
152 {
153 if (xdr_enum (xdrs, &oa->oa_flavor) == FALSE ||
154 xdr_u_int (xdrs, &oa->oa_length) == FALSE)
155 {
156 return FALSE;
157 }
158 }
159 else
160 {
161 oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
162 oa->oa_length = IXDR_GET_INT32 (buf);
163 }
164 if (oa->oa_length)
165 {
166 if (oa->oa_length > MAX_AUTH_BYTES)
167 return FALSE;
168 if (oa->oa_base == NULL)
169 {
170 oa->oa_base = (caddr_t)
171 mem_alloc (oa->oa_length);
172 }
173 buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
174 if (buf == NULL)
175 {
176 if (xdr_opaque (xdrs, oa->oa_base,
177 oa->oa_length) == FALSE)
178 return FALSE;
179 }
180 else
181 {
182 memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
183 /* no real need...
184 buf = (long *) ((char *) buf
185 + RNDUP(oa->oa_length));
186 */
187 }
188 }
189 return TRUE;
190 }
191 }
192 if (
193 xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
194 xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
195 (cmsg->rm_direction == CALL) &&
196 xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
197 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
198 xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)) &&
199 xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers)) &&
200 xdr_u_long (xdrs, &(cmsg->rm_call.cb_proc)) &&
201 xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_cred)))
202 return xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_verf));
203 return FALSE;
204 }
205 libc_hidden_def(xdr_callmsg)
206