FreeBSD/Linux Kernel Cross Reference
sys/rpc/rpc_callmsg.c
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
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char *sccsid2 = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";
34 static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC";
35 #endif
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: src/sys/rpc/rpc_callmsg.c,v 1.1 2008/03/26 15:23:10 dfr Exp $");
38
39 /*
40 * rpc_callmsg.c
41 *
42 * Copyright (C) 1984, Sun Microsystems, Inc.
43 *
44 */
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/malloc.h>
49
50 #include <rpc/rpc.h>
51
52 /*
53 * XDR a call message
54 */
55 bool_t
56 xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg)
57 {
58 enum msg_type *prm_direction;
59 int32_t *buf;
60 struct opaque_auth *oa;
61
62 if (xdrs->x_op == XDR_ENCODE) {
63 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
64 return (FALSE);
65 }
66 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
67 return (FALSE);
68 }
69 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
70 + RNDUP(cmsg->rm_call.cb_cred.oa_length)
71 + 2 * BYTES_PER_XDR_UNIT
72 + RNDUP(cmsg->rm_call.cb_verf.oa_length));
73 if (buf != NULL) {
74 IXDR_PUT_INT32(buf, cmsg->rm_xid);
75 IXDR_PUT_ENUM(buf, cmsg->rm_direction);
76 if (cmsg->rm_direction != CALL) {
77 return (FALSE);
78 }
79 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers);
80 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
81 return (FALSE);
82 }
83 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog);
84 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers);
85 IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc);
86 oa = &cmsg->rm_call.cb_cred;
87 IXDR_PUT_ENUM(buf, oa->oa_flavor);
88 IXDR_PUT_INT32(buf, oa->oa_length);
89 if (oa->oa_length) {
90 memcpy(buf, oa->oa_base, oa->oa_length);
91 buf += RNDUP(oa->oa_length) / sizeof (int32_t);
92 }
93 oa = &cmsg->rm_call.cb_verf;
94 IXDR_PUT_ENUM(buf, oa->oa_flavor);
95 IXDR_PUT_INT32(buf, oa->oa_length);
96 if (oa->oa_length) {
97 memcpy(buf, oa->oa_base, oa->oa_length);
98 /* no real need....
99 buf += RNDUP(oa->oa_length) / sizeof (int32_t);
100 */
101 }
102 return (TRUE);
103 }
104 }
105 if (xdrs->x_op == XDR_DECODE) {
106 buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
107 if (buf != NULL) {
108 cmsg->rm_xid = IXDR_GET_UINT32(buf);
109 cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
110 if (cmsg->rm_direction != CALL) {
111 return (FALSE);
112 }
113 cmsg->rm_call.cb_rpcvers = IXDR_GET_UINT32(buf);
114 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
115 return (FALSE);
116 }
117 cmsg->rm_call.cb_prog = IXDR_GET_UINT32(buf);
118 cmsg->rm_call.cb_vers = IXDR_GET_UINT32(buf);
119 cmsg->rm_call.cb_proc = IXDR_GET_UINT32(buf);
120 oa = &cmsg->rm_call.cb_cred;
121 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
122 oa->oa_length = (u_int)IXDR_GET_UINT32(buf);
123 if (oa->oa_length) {
124 if (oa->oa_length > MAX_AUTH_BYTES) {
125 return (FALSE);
126 }
127 if (oa->oa_base == NULL) {
128 oa->oa_base = (caddr_t)
129 mem_alloc(oa->oa_length);
130 if (oa->oa_base == NULL)
131 return (FALSE);
132 }
133 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
134 if (buf == NULL) {
135 if (xdr_opaque(xdrs, oa->oa_base,
136 oa->oa_length) == FALSE) {
137 return (FALSE);
138 }
139 } else {
140 memcpy(oa->oa_base, buf,
141 oa->oa_length);
142 /* no real need....
143 buf += RNDUP(oa->oa_length) /
144 sizeof (int32_t);
145 */
146 }
147 }
148 oa = &cmsg->rm_call.cb_verf;
149 buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
150 if (buf == NULL) {
151 if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
152 xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
153 return (FALSE);
154 }
155 } else {
156 oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
157 oa->oa_length = (u_int)IXDR_GET_UINT32(buf);
158 }
159 if (oa->oa_length) {
160 if (oa->oa_length > MAX_AUTH_BYTES) {
161 return (FALSE);
162 }
163 if (oa->oa_base == NULL) {
164 oa->oa_base = (caddr_t)
165 mem_alloc(oa->oa_length);
166 if (oa->oa_base == NULL)
167 return (FALSE);
168 }
169 buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
170 if (buf == NULL) {
171 if (xdr_opaque(xdrs, oa->oa_base,
172 oa->oa_length) == FALSE) {
173 return (FALSE);
174 }
175 } else {
176 memcpy(oa->oa_base, buf,
177 oa->oa_length);
178 /* no real need...
179 buf += RNDUP(oa->oa_length) /
180 sizeof (int32_t);
181 */
182 }
183 }
184 return (TRUE);
185 }
186 }
187 prm_direction = &cmsg->rm_direction;
188 if (
189 xdr_uint32_t(xdrs, &(cmsg->rm_xid)) &&
190 xdr_enum(xdrs, (enum_t *) prm_direction) &&
191 (cmsg->rm_direction == CALL) &&
192 xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
193 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
194 xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_prog)) &&
195 xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_vers)) &&
196 xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_proc)) &&
197 xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
198 return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
199 return (FALSE);
200 }
201
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