1 /* $OpenBSD: by_file.c,v 1.31 2024/08/31 10:19:17 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <errno.h>
60 #include <stdio.h>
61 #include <time.h>
62 #include <unistd.h>
63
64 #include <openssl/buffer.h>
65 #include <openssl/err.h>
66 #include <openssl/pem.h>
67 #include <openssl/x509.h>
68
69 #include "x509_local.h"
70
71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
72 long argl, char **ret);
73
74 static const X509_LOOKUP_METHOD x509_file_lookup = {
75 .name = "Load file into cache",
76 .new_item = NULL,
77 .free = NULL,
78 .ctrl = by_file_ctrl,
79 .get_by_subject = NULL,
80 };
81
82 const X509_LOOKUP_METHOD *
X509_LOOKUP_file(void)83 X509_LOOKUP_file(void)
84 {
85 return &x509_file_lookup;
86 }
87 LCRYPTO_ALIAS(X509_LOOKUP_file);
88
89 static int
by_file_ctrl(X509_LOOKUP * ctx,int cmd,const char * argp,long argl,char ** ret)90 by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
91 char **ret)
92 {
93 const char *file = argp;
94 int type = argl;
95
96 if (cmd != X509_L_FILE_LOAD)
97 return 0;
98
99 if (argl == X509_FILETYPE_DEFAULT) {
100 file = X509_get_default_cert_file();
101 type = X509_FILETYPE_PEM;
102 }
103 if (X509_load_cert_crl_file(ctx, file, type) != 0)
104 return 1;
105 if (argl == X509_FILETYPE_DEFAULT)
106 X509error(X509_R_LOADING_DEFAULTS);
107
108 return 0;
109 }
110
111 int
X509_load_cert_file(X509_LOOKUP * ctx,const char * file,int type)112 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
113 {
114 int ret = 0;
115 BIO *in = NULL;
116 int i, count = 0;
117 X509 *x = NULL;
118
119 in = BIO_new(BIO_s_file());
120
121 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
122 X509error(ERR_R_SYS_LIB);
123 goto err;
124 }
125
126 if (type == X509_FILETYPE_PEM) {
127 for (;;) {
128 x = PEM_read_bio_X509_AUX(in, NULL, NULL, "");
129 if (x == NULL) {
130 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
131 PEM_R_NO_START_LINE) && (count > 0)) {
132 ERR_clear_error();
133 break;
134 } else {
135 X509error(ERR_R_PEM_LIB);
136 goto err;
137 }
138 }
139 i = X509_STORE_add_cert(ctx->store_ctx, x);
140 if (!i)
141 goto err;
142 count++;
143 X509_free(x);
144 x = NULL;
145 }
146 ret = count;
147 } else if (type == X509_FILETYPE_ASN1) {
148 x = d2i_X509_bio(in, NULL);
149 if (x == NULL) {
150 X509error(ERR_R_ASN1_LIB);
151 goto err;
152 }
153 i = X509_STORE_add_cert(ctx->store_ctx, x);
154 if (!i)
155 goto err;
156 ret = i;
157 } else {
158 X509error(X509_R_BAD_X509_FILETYPE);
159 goto err;
160 }
161 err:
162 X509_free(x);
163 BIO_free(in);
164 return ret;
165 }
166 LCRYPTO_ALIAS(X509_load_cert_file);
167
168 int
X509_load_crl_file(X509_LOOKUP * ctx,const char * file,int type)169 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
170 {
171 int ret = 0;
172 BIO *in = NULL;
173 int i, count = 0;
174 X509_CRL *x = NULL;
175
176 in = BIO_new(BIO_s_file());
177
178 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
179 X509error(ERR_R_SYS_LIB);
180 goto err;
181 }
182
183 if (type == X509_FILETYPE_PEM) {
184 for (;;) {
185 x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
186 if (x == NULL) {
187 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
188 PEM_R_NO_START_LINE) && (count > 0)) {
189 ERR_clear_error();
190 break;
191 } else {
192 X509error(ERR_R_PEM_LIB);
193 goto err;
194 }
195 }
196 i = X509_STORE_add_crl(ctx->store_ctx, x);
197 if (!i)
198 goto err;
199 count++;
200 X509_CRL_free(x);
201 x = NULL;
202 }
203 ret = count;
204 } else if (type == X509_FILETYPE_ASN1) {
205 x = d2i_X509_CRL_bio(in, NULL);
206 if (x == NULL) {
207 X509error(ERR_R_ASN1_LIB);
208 goto err;
209 }
210 i = X509_STORE_add_crl(ctx->store_ctx, x);
211 if (!i)
212 goto err;
213 ret = i;
214 } else {
215 X509error(X509_R_BAD_X509_FILETYPE);
216 goto err;
217 }
218 err:
219 X509_CRL_free(x);
220 BIO_free(in);
221 return ret;
222 }
223 LCRYPTO_ALIAS(X509_load_crl_file);
224
225 int
X509_load_cert_crl_file(X509_LOOKUP * ctx,const char * file,int type)226 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
227 {
228 STACK_OF(X509_INFO) *inf;
229 X509_INFO *itmp;
230 BIO *in;
231 int i, count = 0;
232
233 if (type != X509_FILETYPE_PEM)
234 return X509_load_cert_file(ctx, file, type);
235 in = BIO_new_file(file, "r");
236 if (!in) {
237 X509error(ERR_R_SYS_LIB);
238 return 0;
239 }
240 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, "");
241 BIO_free(in);
242 if (!inf) {
243 X509error(ERR_R_PEM_LIB);
244 return 0;
245 }
246 for (i = 0; i < sk_X509_INFO_num(inf); i++) {
247 itmp = sk_X509_INFO_value(inf, i);
248 if (itmp->x509) {
249 X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
250 count++;
251 }
252 if (itmp->crl) {
253 X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
254 count++;
255 }
256 }
257 if (count == 0)
258 X509error(X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
259 sk_X509_INFO_pop_free(inf, X509_INFO_free);
260 return count;
261 }
262 LCRYPTO_ALIAS(X509_load_cert_crl_file);
263