1 /* $OpenBSD: by_file.c,v 1.25 2021/11/10 13:57:42 schwarze 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_lcl.h"
70
71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
72 long argl, char **ret);
73
74 static X509_LOOKUP_METHOD x509_file_lookup = {
75 .name = "Load file into cache",
76 .new_item = NULL,
77 .free = NULL,
78 .init = NULL,
79 .shutdown = NULL,
80 .ctrl = by_file_ctrl,
81 .get_by_subject = NULL,
82 .get_by_issuer_serial = NULL,
83 .get_by_fingerprint = NULL,
84 .get_by_alias = NULL,
85 };
86
87 X509_LOOKUP_METHOD *
X509_LOOKUP_file(void)88 X509_LOOKUP_file(void)
89 {
90 return &x509_file_lookup;
91 }
92
93 static int
by_file_ctrl(X509_LOOKUP * ctx,int cmd,const char * argp,long argl,char ** ret)94 by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
95 char **ret)
96 {
97 int ok = 0;
98
99 switch (cmd) {
100 case X509_L_FILE_LOAD:
101 if (argl == X509_FILETYPE_DEFAULT) {
102 ok = (X509_load_cert_crl_file(ctx,
103 X509_get_default_cert_file(),
104 X509_FILETYPE_PEM) != 0);
105 if (!ok) {
106 X509error(X509_R_LOADING_DEFAULTS);
107 }
108 } else {
109 if (argl == X509_FILETYPE_PEM)
110 ok = (X509_load_cert_crl_file(ctx, argp,
111 X509_FILETYPE_PEM) != 0);
112 else
113 ok = (X509_load_cert_file(ctx,
114 argp, (int)argl) != 0);
115 }
116 break;
117 }
118 return ok;
119 }
120
121 int
X509_load_cert_file(X509_LOOKUP * ctx,const char * file,int type)122 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
123 {
124 int ret = 0;
125 BIO *in = NULL;
126 int i, count = 0;
127 X509 *x = NULL;
128
129 in = BIO_new(BIO_s_file());
130
131 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
132 X509error(ERR_R_SYS_LIB);
133 goto err;
134 }
135
136 if (type == X509_FILETYPE_PEM) {
137 for (;;) {
138 x = PEM_read_bio_X509_AUX(in, NULL, NULL, "");
139 if (x == NULL) {
140 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
141 PEM_R_NO_START_LINE) && (count > 0)) {
142 ERR_clear_error();
143 break;
144 } else {
145 X509error(ERR_R_PEM_LIB);
146 goto err;
147 }
148 }
149 i = X509_STORE_add_cert(ctx->store_ctx, x);
150 if (!i)
151 goto err;
152 count++;
153 X509_free(x);
154 x = NULL;
155 }
156 ret = count;
157 } else if (type == X509_FILETYPE_ASN1) {
158 x = d2i_X509_bio(in, NULL);
159 if (x == NULL) {
160 X509error(ERR_R_ASN1_LIB);
161 goto err;
162 }
163 i = X509_STORE_add_cert(ctx->store_ctx, x);
164 if (!i)
165 goto err;
166 ret = i;
167 } else {
168 X509error(X509_R_BAD_X509_FILETYPE);
169 goto err;
170 }
171 err:
172 X509_free(x);
173 BIO_free(in);
174 return ret;
175 }
176
177 int
X509_load_crl_file(X509_LOOKUP * ctx,const char * file,int type)178 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
179 {
180 int ret = 0;
181 BIO *in = NULL;
182 int i, count = 0;
183 X509_CRL *x = NULL;
184
185 in = BIO_new(BIO_s_file());
186
187 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
188 X509error(ERR_R_SYS_LIB);
189 goto err;
190 }
191
192 if (type == X509_FILETYPE_PEM) {
193 for (;;) {
194 x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
195 if (x == NULL) {
196 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
197 PEM_R_NO_START_LINE) && (count > 0)) {
198 ERR_clear_error();
199 break;
200 } else {
201 X509error(ERR_R_PEM_LIB);
202 goto err;
203 }
204 }
205 i = X509_STORE_add_crl(ctx->store_ctx, x);
206 if (!i)
207 goto err;
208 count++;
209 X509_CRL_free(x);
210 x = NULL;
211 }
212 ret = count;
213 } else if (type == X509_FILETYPE_ASN1) {
214 x = d2i_X509_CRL_bio(in, NULL);
215 if (x == NULL) {
216 X509error(ERR_R_ASN1_LIB);
217 goto err;
218 }
219 i = X509_STORE_add_crl(ctx->store_ctx, x);
220 if (!i)
221 goto err;
222 ret = i;
223 } else {
224 X509error(X509_R_BAD_X509_FILETYPE);
225 goto err;
226 }
227 err:
228 X509_CRL_free(x);
229 BIO_free(in);
230 return ret;
231 }
232
233 int
X509_load_cert_crl_file(X509_LOOKUP * ctx,const char * file,int type)234 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
235 {
236 STACK_OF(X509_INFO) *inf;
237 X509_INFO *itmp;
238 BIO *in;
239 int i, count = 0;
240
241 if (type != X509_FILETYPE_PEM)
242 return X509_load_cert_file(ctx, file, type);
243 in = BIO_new_file(file, "r");
244 if (!in) {
245 X509error(ERR_R_SYS_LIB);
246 return 0;
247 }
248 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, "");
249 BIO_free(in);
250 if (!inf) {
251 X509error(ERR_R_PEM_LIB);
252 return 0;
253 }
254 for (i = 0; i < sk_X509_INFO_num(inf); i++) {
255 itmp = sk_X509_INFO_value(inf, i);
256 if (itmp->x509) {
257 X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
258 count++;
259 }
260 if (itmp->crl) {
261 X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
262 count++;
263 }
264 }
265 if (count == 0)
266 X509error(X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
267 sk_X509_INFO_pop_free(inf, X509_INFO_free);
268 return count;
269 }
270
271