1 /*-
2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3 * Authors: Doug Rabson <dfr@rabson.org>
4 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: releng/10.1/sys/kgssapi/gssd_prot.c 184588 2008-11-03 10:38:00Z dfr $");
30
31 #ifdef _KERNEL
32 #include <sys/malloc.h>
33 #else
34 #include <stdlib.h>
35 #include <string.h>
36 #endif
37
38 #include <rpc/rpc.h>
39 #include <rpc/rpc_com.h>
40
41 #include "gssd.h"
42
43 bool_t
44 xdr_gss_buffer_desc(XDR *xdrs, gss_buffer_desc *buf)
45 {
46 char *val;
47 u_int len;
48
49 len = buf->length;
50 val = buf->value;
51 if (!xdr_bytes(xdrs, &val, &len, ~0))
52 return (FALSE);
53 buf->length = len;
54 buf->value = val;
55
56 return (TRUE);
57 }
58
59 bool_t
60 xdr_gss_OID_desc(XDR *xdrs, gss_OID_desc *oid)
61 {
62 char *val;
63 u_int len;
64
65 len = oid->length;
66 val = oid->elements;
67 if (!xdr_bytes(xdrs, &val, &len, ~0))
68 return (FALSE);
69 oid->length = len;
70 oid->elements = val;
71
72 return (TRUE);
73 }
74
75 bool_t
76 xdr_gss_OID(XDR *xdrs, gss_OID *oidp)
77 {
78 gss_OID oid;
79 bool_t is_null;
80
81 switch (xdrs->x_op) {
82 case XDR_ENCODE:
83 oid = *oidp;
84 if (oid) {
85 is_null = FALSE;
86 if (!xdr_bool(xdrs, &is_null)
87 || !xdr_gss_OID_desc(xdrs, oid))
88 return (FALSE);
89 } else {
90 is_null = TRUE;
91 if (!xdr_bool(xdrs, &is_null))
92 return (FALSE);
93 }
94 break;
95
96 case XDR_DECODE:
97 if (!xdr_bool(xdrs, &is_null))
98 return (FALSE);
99 if (is_null) {
100 *oidp = GSS_C_NO_OID;
101 } else {
102 oid = mem_alloc(sizeof(gss_OID_desc));
103 memset(oid, 0, sizeof(*oid));
104 if (!xdr_gss_OID_desc(xdrs, oid))
105 return (FALSE);
106 *oidp = oid;
107 }
108 break;
109
110 case XDR_FREE:
111 oid = *oidp;
112 if (oid) {
113 xdr_gss_OID_desc(xdrs, oid);
114 mem_free(oid, sizeof(gss_OID_desc));
115 }
116 }
117
118 return (TRUE);
119 }
120
121 bool_t
122 xdr_gss_OID_set_desc(XDR *xdrs, gss_OID_set_desc *set)
123 {
124 caddr_t addr;
125 u_int len;
126
127 len = set->count;
128 addr = (caddr_t) set->elements;
129 if (!xdr_array(xdrs, &addr, &len, ~0, sizeof(gss_OID_desc),
130 (xdrproc_t) xdr_gss_OID_desc))
131 return (FALSE);
132 set->count = len;
133 set->elements = (gss_OID) addr;
134
135 return (TRUE);
136 }
137
138 bool_t
139 xdr_gss_OID_set(XDR *xdrs, gss_OID_set *setp)
140 {
141 gss_OID_set set;
142 bool_t is_null;
143
144 switch (xdrs->x_op) {
145 case XDR_ENCODE:
146 set = *setp;
147 if (set) {
148 is_null = FALSE;
149 if (!xdr_bool(xdrs, &is_null)
150 || !xdr_gss_OID_set_desc(xdrs, set))
151 return (FALSE);
152 } else {
153 is_null = TRUE;
154 if (!xdr_bool(xdrs, &is_null))
155 return (FALSE);
156 }
157 break;
158
159 case XDR_DECODE:
160 if (!xdr_bool(xdrs, &is_null))
161 return (FALSE);
162 if (is_null) {
163 *setp = GSS_C_NO_OID_SET;
164 } else {
165 set = mem_alloc(sizeof(gss_OID_set_desc));
166 memset(set, 0, sizeof(*set));
167 if (!xdr_gss_OID_set_desc(xdrs, set))
168 return (FALSE);
169 *setp = set;
170 }
171 break;
172
173 case XDR_FREE:
174 set = *setp;
175 if (set) {
176 xdr_gss_OID_set_desc(xdrs, set);
177 mem_free(set, sizeof(gss_OID_set_desc));
178 }
179 }
180
181 return (TRUE);
182 }
183
184 bool_t
185 xdr_gss_channel_bindings_t(XDR *xdrs, gss_channel_bindings_t *chp)
186 {
187 gss_channel_bindings_t ch;
188 bool_t is_null;
189
190 switch (xdrs->x_op) {
191 case XDR_ENCODE:
192 ch = *chp;
193 if (ch) {
194 is_null = FALSE;
195 if (!xdr_bool(xdrs, &is_null)
196 || !xdr_uint32_t(xdrs, &ch->initiator_addrtype)
197 || !xdr_gss_buffer_desc(xdrs,
198 &ch->initiator_address)
199 || !xdr_uint32_t(xdrs, &ch->acceptor_addrtype)
200 || !xdr_gss_buffer_desc(xdrs,
201 &ch->acceptor_address)
202 || !xdr_gss_buffer_desc(xdrs,
203 &ch->application_data))
204 return (FALSE);
205 } else {
206 is_null = TRUE;
207 if (!xdr_bool(xdrs, &is_null))
208 return (FALSE);
209 }
210 break;
211
212 case XDR_DECODE:
213 if (!xdr_bool(xdrs, &is_null))
214 return (FALSE);
215 if (is_null) {
216 *chp = GSS_C_NO_CHANNEL_BINDINGS;
217 } else {
218 ch = mem_alloc(sizeof(*ch));
219 memset(ch, 0, sizeof(*ch));
220 if (!xdr_uint32_t(xdrs, &ch->initiator_addrtype)
221 || !xdr_gss_buffer_desc(xdrs,
222 &ch->initiator_address)
223 || !xdr_uint32_t(xdrs, &ch->acceptor_addrtype)
224 || !xdr_gss_buffer_desc(xdrs,
225 &ch->acceptor_address)
226 || !xdr_gss_buffer_desc(xdrs,
227 &ch->application_data))
228 return (FALSE);
229 *chp = ch;
230 }
231 break;
232
233 case XDR_FREE:
234 ch = *chp;
235 if (ch) {
236 xdr_gss_buffer_desc(xdrs, &ch->initiator_address);
237 xdr_gss_buffer_desc(xdrs, &ch->acceptor_address);
238 xdr_gss_buffer_desc(xdrs, &ch->application_data);
239 mem_free(ch, sizeof(*ch));
240 }
241 }
242
243 return (TRUE);
244 }
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