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