1 |
|
|
/* $OpenBSD: rpc_callmsg.c,v 1.12 2015/09/13 15:36:56 guenther Exp $ */ |
2 |
|
|
|
3 |
|
|
/* |
4 |
|
|
* Copyright (c) 2010, Oracle America, Inc. |
5 |
|
|
* |
6 |
|
|
* Redistribution and use in source and binary forms, with or without |
7 |
|
|
* modification, are permitted provided that the following conditions are |
8 |
|
|
* met: |
9 |
|
|
* |
10 |
|
|
* * Redistributions of source code must retain the above copyright |
11 |
|
|
* notice, this list of conditions and the following disclaimer. |
12 |
|
|
* * Redistributions in binary form must reproduce the above |
13 |
|
|
* copyright notice, this list of conditions and the following |
14 |
|
|
* disclaimer in the documentation and/or other materials |
15 |
|
|
* provided with the distribution. |
16 |
|
|
* * Neither the name of the "Oracle America, Inc." nor the names of its |
17 |
|
|
* contributors may be used to endorse or promote products derived |
18 |
|
|
* from this software without specific prior written permission. |
19 |
|
|
* |
20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
21 |
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
22 |
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
23 |
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
24 |
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
25 |
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
27 |
|
|
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
28 |
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
29 |
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
30 |
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
31 |
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
32 |
|
|
*/ |
33 |
|
|
|
34 |
|
|
#include <stdlib.h> |
35 |
|
|
#include <string.h> |
36 |
|
|
|
37 |
|
|
#include <rpc/rpc.h> |
38 |
|
|
|
39 |
|
|
/* |
40 |
|
|
* XDR a call message |
41 |
|
|
*/ |
42 |
|
|
bool_t |
43 |
|
|
xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg) |
44 |
|
|
{ |
45 |
|
|
int32_t *buf; |
46 |
|
|
struct opaque_auth *oa; |
47 |
|
|
|
48 |
|
|
if (xdrs->x_op == XDR_ENCODE) { |
49 |
|
|
if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { |
50 |
|
|
return (FALSE); |
51 |
|
|
} |
52 |
|
|
if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { |
53 |
|
|
return (FALSE); |
54 |
|
|
} |
55 |
|
|
buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT |
56 |
|
|
+ RNDUP(cmsg->rm_call.cb_cred.oa_length) |
57 |
|
|
+ 2 * BYTES_PER_XDR_UNIT |
58 |
|
|
+ RNDUP(cmsg->rm_call.cb_verf.oa_length)); |
59 |
|
|
if (buf != NULL) { |
60 |
|
|
IXDR_PUT_LONG(buf, cmsg->rm_xid); |
61 |
|
|
IXDR_PUT_ENUM(buf, cmsg->rm_direction); |
62 |
|
|
if (cmsg->rm_direction != CALL) { |
63 |
|
|
return (FALSE); |
64 |
|
|
} |
65 |
|
|
IXDR_PUT_LONG(buf, cmsg->rm_call.cb_rpcvers); |
66 |
|
|
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { |
67 |
|
|
return (FALSE); |
68 |
|
|
} |
69 |
|
|
IXDR_PUT_LONG(buf, cmsg->rm_call.cb_prog); |
70 |
|
|
IXDR_PUT_LONG(buf, cmsg->rm_call.cb_vers); |
71 |
|
|
IXDR_PUT_LONG(buf, cmsg->rm_call.cb_proc); |
72 |
|
|
oa = &cmsg->rm_call.cb_cred; |
73 |
|
|
IXDR_PUT_ENUM(buf, oa->oa_flavor); |
74 |
|
|
IXDR_PUT_LONG(buf, oa->oa_length); |
75 |
|
|
if (oa->oa_length) { |
76 |
|
|
memcpy((caddr_t)buf, oa->oa_base, oa->oa_length); |
77 |
|
|
buf += RNDUP(oa->oa_length) / sizeof (int32_t); |
78 |
|
|
} |
79 |
|
|
oa = &cmsg->rm_call.cb_verf; |
80 |
|
|
IXDR_PUT_ENUM(buf, oa->oa_flavor); |
81 |
|
|
IXDR_PUT_LONG(buf, oa->oa_length); |
82 |
|
|
if (oa->oa_length) { |
83 |
|
|
memcpy((caddr_t)buf, oa->oa_base, oa->oa_length); |
84 |
|
|
/* no real need.... |
85 |
|
|
buf += RNDUP(oa->oa_length) / sizeof (int32_t); |
86 |
|
|
*/ |
87 |
|
|
} |
88 |
|
|
return (TRUE); |
89 |
|
|
} |
90 |
|
|
} |
91 |
|
|
if (xdrs->x_op == XDR_DECODE) { |
92 |
|
|
buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); |
93 |
|
|
if (buf != NULL) { |
94 |
|
|
cmsg->rm_xid = IXDR_GET_LONG(buf); |
95 |
|
|
cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); |
96 |
|
|
if (cmsg->rm_direction != CALL) { |
97 |
|
|
return (FALSE); |
98 |
|
|
} |
99 |
|
|
cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG(buf); |
100 |
|
|
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { |
101 |
|
|
return (FALSE); |
102 |
|
|
} |
103 |
|
|
cmsg->rm_call.cb_prog = IXDR_GET_LONG(buf); |
104 |
|
|
cmsg->rm_call.cb_vers = IXDR_GET_LONG(buf); |
105 |
|
|
cmsg->rm_call.cb_proc = IXDR_GET_LONG(buf); |
106 |
|
|
oa = &cmsg->rm_call.cb_cred; |
107 |
|
|
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); |
108 |
|
|
oa->oa_length = IXDR_GET_LONG(buf); |
109 |
|
|
if (oa->oa_length) { |
110 |
|
|
if (oa->oa_length > MAX_AUTH_BYTES) { |
111 |
|
|
return (FALSE); |
112 |
|
|
} |
113 |
|
|
if (oa->oa_base == NULL) { |
114 |
|
|
oa->oa_base = (caddr_t) |
115 |
|
|
mem_alloc(oa->oa_length); |
116 |
|
|
if (oa->oa_base == NULL) |
117 |
|
|
return (FALSE); |
118 |
|
|
} |
119 |
|
|
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); |
120 |
|
|
if (buf == NULL) { |
121 |
|
|
if (xdr_opaque(xdrs, oa->oa_base, |
122 |
|
|
oa->oa_length) == FALSE) { |
123 |
|
|
return (FALSE); |
124 |
|
|
} |
125 |
|
|
} else { |
126 |
|
|
memcpy(oa->oa_base, (caddr_t)buf, |
127 |
|
|
oa->oa_length); |
128 |
|
|
/* no real need.... |
129 |
|
|
buf += RNDUP(oa->oa_length) / |
130 |
|
|
sizeof (int32_t); |
131 |
|
|
*/ |
132 |
|
|
} |
133 |
|
|
} |
134 |
|
|
oa = &cmsg->rm_call.cb_verf; |
135 |
|
|
buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); |
136 |
|
|
if (buf == NULL) { |
137 |
|
|
if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || |
138 |
|
|
xdr_u_int(xdrs, &oa->oa_length) == FALSE) { |
139 |
|
|
return (FALSE); |
140 |
|
|
} |
141 |
|
|
} else { |
142 |
|
|
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); |
143 |
|
|
oa->oa_length = IXDR_GET_LONG(buf); |
144 |
|
|
} |
145 |
|
|
if (oa->oa_length) { |
146 |
|
|
if (oa->oa_length > MAX_AUTH_BYTES) { |
147 |
|
|
return (FALSE); |
148 |
|
|
} |
149 |
|
|
if (oa->oa_base == NULL) { |
150 |
|
|
oa->oa_base = (caddr_t) |
151 |
|
|
mem_alloc(oa->oa_length); |
152 |
|
|
if (oa->oa_base == NULL) |
153 |
|
|
return (FALSE); |
154 |
|
|
} |
155 |
|
|
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); |
156 |
|
|
if (buf == NULL) { |
157 |
|
|
if (xdr_opaque(xdrs, oa->oa_base, |
158 |
|
|
oa->oa_length) == FALSE) { |
159 |
|
|
return (FALSE); |
160 |
|
|
} |
161 |
|
|
} else { |
162 |
|
|
memcpy(oa->oa_base, (caddr_t)buf, |
163 |
|
|
oa->oa_length); |
164 |
|
|
/* no real need... |
165 |
|
|
buf += RNDUP(oa->oa_length) / |
166 |
|
|
sizeof (int32_t); |
167 |
|
|
*/ |
168 |
|
|
} |
169 |
|
|
} |
170 |
|
|
return (TRUE); |
171 |
|
|
} |
172 |
|
|
} |
173 |
|
|
if ( |
174 |
|
|
xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && |
175 |
|
|
xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && |
176 |
|
|
(cmsg->rm_direction == CALL) && |
177 |
|
|
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && |
178 |
|
|
(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && |
179 |
|
|
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && |
180 |
|
|
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && |
181 |
|
|
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && |
182 |
|
|
xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) |
183 |
|
|
return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); |
184 |
|
|
return (FALSE); |
185 |
|
|
} |
186 |
|
|
DEF_WEAK(xdr_callmsg); |