1 /*	$NetBSD: hx_locl.h,v 1.1.1.2 2011/04/14 14:08:56 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 2004 - 2006 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of the Institute nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 /* Id */
37 
38 #include <config.h>
39 
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <ctype.h>
43 #include <errno.h>
44 #ifdef HAVE_STRINGS_H
45 #include <strings.h>
46 #endif
47 #include <assert.h>
48 #include <stdarg.h>
49 #include <err.h>
50 #include <limits.h>
51 
52 #include <krb5/roken.h>
53 
54 #include <krb5/getarg.h>
55 #include <krb5/base64.h>
56 #include <krb5/hex.h>
57 #include <krb5/com_err.h>
58 #include <krb5/parse_units.h>
59 #include <krb5/parse_bytes.h>
60 
61 #include <krb5/krb5-types.h>
62 
63 #include <krb5/rfc2459_asn1.h>
64 #include <krb5/cms_asn1.h>
65 #include <krb5/pkcs8_asn1.h>
66 #include <krb5/pkcs9_asn1.h>
67 #include <krb5/pkcs12_asn1.h>
68 #include <krb5/ocsp_asn1.h>
69 #include <krb5/pkcs10_asn1.h>
70 #include <krb5/asn1_err.h>
71 #include <krb5/pkinit_asn1.h>
72 
73 #include <krb5/der.h>
74 
75 #define HC_DEPRECATED_CRYPTO
76 #include "crypto-headers.h"
77 
78 struct hx509_keyset_ops;
79 struct hx509_collector;
80 struct hx509_generate_private_context;
81 typedef struct hx509_path hx509_path;
82 
83 #include <krb5/hx509.h>
84 
85 typedef void (*_hx509_cert_release_func)(struct hx509_cert_data *, void *);
86 
87 
88 #include "sel.h"
89 
90 #include <hx509-private.h>
91 #include <krb5/hx509_err.h>
92 
93 struct hx509_peer_info {
94     hx509_cert cert;
95     AlgorithmIdentifier *val;
96     size_t len;
97 };
98 
99 #define HX509_CERTS_FIND_SERIALNUMBER		1
100 #define HX509_CERTS_FIND_ISSUER			2
101 #define HX509_CERTS_FIND_SUBJECT		4
102 #define HX509_CERTS_FIND_ISSUER_KEY_ID		8
103 #define HX509_CERTS_FIND_SUBJECT_KEY_ID		16
104 
105 struct hx509_name_data {
106     Name der_name;
107 };
108 
109 struct hx509_path {
110     size_t len;
111     hx509_cert *val;
112 };
113 
114 struct hx509_query_data {
115     int match;
116 #define HX509_QUERY_FIND_ISSUER_CERT		0x000001
117 #define HX509_QUERY_MATCH_SERIALNUMBER		0x000002
118 #define HX509_QUERY_MATCH_ISSUER_NAME		0x000004
119 #define HX509_QUERY_MATCH_SUBJECT_NAME		0x000008
120 #define HX509_QUERY_MATCH_SUBJECT_KEY_ID	0x000010
121 #define HX509_QUERY_MATCH_ISSUER_ID		0x000020
122 #define HX509_QUERY_PRIVATE_KEY			0x000040
123 #define HX509_QUERY_KU_ENCIPHERMENT		0x000080
124 #define HX509_QUERY_KU_DIGITALSIGNATURE		0x000100
125 #define HX509_QUERY_KU_KEYCERTSIGN		0x000200
126 #define HX509_QUERY_KU_CRLSIGN			0x000400
127 #define HX509_QUERY_KU_NONREPUDIATION		0x000800
128 #define HX509_QUERY_KU_KEYAGREEMENT		0x001000
129 #define HX509_QUERY_KU_DATAENCIPHERMENT		0x002000
130 #define HX509_QUERY_ANCHOR			0x004000
131 #define HX509_QUERY_MATCH_CERTIFICATE		0x008000
132 #define HX509_QUERY_MATCH_LOCAL_KEY_ID		0x010000
133 #define HX509_QUERY_NO_MATCH_PATH		0x020000
134 #define HX509_QUERY_MATCH_FRIENDLY_NAME		0x040000
135 #define HX509_QUERY_MATCH_FUNCTION		0x080000
136 #define HX509_QUERY_MATCH_KEY_HASH_SHA1		0x100000
137 #define HX509_QUERY_MATCH_TIME			0x200000
138 #define HX509_QUERY_MATCH_EKU			0x400000
139 #define HX509_QUERY_MATCH_EXPR			0x800000
140 #define HX509_QUERY_MASK			0xffffff
141     Certificate *subject;
142     Certificate *certificate;
143     heim_integer *serial;
144     heim_octet_string *subject_id;
145     heim_octet_string *local_key_id;
146     Name *issuer_name;
147     Name *subject_name;
148     hx509_path *path;
149     char *friendlyname;
150     int (*cmp_func)(hx509_context, hx509_cert, void *);
151     void *cmp_func_ctx;
152     heim_octet_string *keyhash_sha1;
153     time_t timenow;
154     heim_oid *eku;
155     struct hx_expr *expr;
156 };
157 
158 struct hx509_keyset_ops {
159     const char *name;
160     int flags;
161     int (*init)(hx509_context, hx509_certs, void **,
162 		int, const char *, hx509_lock);
163     int (*store)(hx509_context, hx509_certs, void *, int, hx509_lock);
164     int (*free)(hx509_certs, void *);
165     int (*add)(hx509_context, hx509_certs, void *, hx509_cert);
166     int (*query)(hx509_context, hx509_certs, void *,
167 		 const hx509_query *, hx509_cert *);
168     int (*iter_start)(hx509_context, hx509_certs, void *, void **);
169     int (*iter)(hx509_context, hx509_certs, void *, void *, hx509_cert *);
170     int (*iter_end)(hx509_context, hx509_certs, void *, void *);
171     int (*printinfo)(hx509_context, hx509_certs,
172 		     void *, int (*)(void *, const char *), void *);
173     int (*getkeys)(hx509_context, hx509_certs, void *, hx509_private_key **);
174     int (*addkey)(hx509_context, hx509_certs, void *, hx509_private_key);
175 };
176 
177 struct _hx509_password {
178     size_t len;
179     char **val;
180 };
181 
182 extern hx509_lock _hx509_empty_lock;
183 
184 struct hx509_context_data {
185     struct hx509_keyset_ops **ks_ops;
186     int ks_num_ops;
187     int flags;
188 #define HX509_CTX_VERIFY_MISSING_OK	1
189     int ocsp_time_diff;
190 #define HX509_DEFAULT_OCSP_TIME_DIFF	(5*60)
191     hx509_error error;
192     struct et_list *et_list;
193     char *querystat;
194     hx509_certs default_trust_anchors;
195 };
196 
197 /* _hx509_calculate_path flag field */
198 #define HX509_CALCULATE_PATH_NO_ANCHOR 1
199 
200 /* environment */
201 struct hx509_env_data {
202     enum { env_string, env_list } type;
203     char *name;
204     struct hx509_env_data *next;
205     union {
206 	char *string;
207 	struct hx509_env_data *list;
208     } u;
209 };
210 
211 
212 extern const AlgorithmIdentifier * _hx509_crypto_default_sig_alg;
213 extern const AlgorithmIdentifier * _hx509_crypto_default_digest_alg;
214 extern const AlgorithmIdentifier * _hx509_crypto_default_secret_alg;
215 
216 /*
217  * Configurable options
218  */
219 
220 #ifdef __APPLE__
221 #define HX509_DEFAULT_ANCHORS "KEYCHAIN:system-anchors"
222 #endif
223