by_file.c revision 340704 
1/* crypto/x509/by_file.c */
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 <stdio.h>
60#include <time.h>
61#include <errno.h>
62
63#include "cryptlib.h"
64#include <openssl/lhash.h>
65#include <openssl/buffer.h>
66#include <openssl/x509.h>
67#include <openssl/pem.h>
68
69#ifndef OPENSSL_NO_STDIO
70
71static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
72                        long argl, char **ret);
73X509_LOOKUP_METHOD x509_file_lookup = {
74    "Load file into cache",
75    NULL,                       /* new */
76    NULL,                       /* free */
77    NULL,                       /* init */
78    NULL,                       /* shutdown */
79    by_file_ctrl,               /* ctrl */
80    NULL,                       /* get_by_subject */
81    NULL,                       /* get_by_issuer_serial */
82    NULL,                       /* get_by_fingerprint */
83    NULL,                       /* get_by_alias */
84};
85
86X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
87{
88    return (&x509_file_lookup);
89}
90
91static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp,
92                        long argl, char **ret)
93{
94    int ok = 0;
95    const char *file;
96
97    switch (cmd) {
98    case X509_L_FILE_LOAD:
99        if (argl == X509_FILETYPE_DEFAULT) {
100            file = ossl_safe_getenv(X509_get_default_cert_file_env());
101
102            if (file)
103                ok = (X509_load_cert_crl_file(ctx, file,
104                                              X509_FILETYPE_PEM) != 0);
105
106            else
107                ok = (X509_load_cert_crl_file
108                      (ctx, X509_get_default_cert_file(),
109                       X509_FILETYPE_PEM) != 0);
110
111            if (!ok) {
112                X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
113            }
114        } else {
115            if (argl == X509_FILETYPE_PEM)
116                ok = (X509_load_cert_crl_file(ctx, argp,
117                                              X509_FILETYPE_PEM) != 0);
118            else
119                ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
120        }
121        break;
122    }
123    return (ok);
124}
125
126int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
127{
128    int ret = 0;
129    BIO *in = NULL;
130    int i, count = 0;
131    X509 *x = NULL;
132
133    if (file == NULL)
134        return (1);
135    in = BIO_new(BIO_s_file_internal());
136
137    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
138        X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
139        goto err;
140    }
141
142    if (type == X509_FILETYPE_PEM) {
143        for (;;) {
144            x = PEM_read_bio_X509_AUX(in, NULL, NULL, "");
145            if (x == NULL) {
146                if ((ERR_GET_REASON(ERR_peek_last_error()) ==
147                     PEM_R_NO_START_LINE) && (count > 0)) {
148                    ERR_clear_error();
149                    break;
150                } else {
151                    X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_PEM_LIB);
152                    goto err;
153                }
154            }
155            i = X509_STORE_add_cert(ctx->store_ctx, x);
156            if (!i)
157                goto err;
158            count++;
159            X509_free(x);
160            x = NULL;
161        }
162        ret = count;
163    } else if (type == X509_FILETYPE_ASN1) {
164        x = d2i_X509_bio(in, NULL);
165        if (x == NULL) {
166            X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
167            goto err;
168        }
169        i = X509_STORE_add_cert(ctx->store_ctx, x);
170        if (!i)
171            goto err;
172        ret = i;
173    } else {
174        X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
175        goto err;
176    }
177 err:
178    if (x != NULL)
179        X509_free(x);
180    if (in != NULL)
181        BIO_free(in);
182    return (ret);
183}
184
185int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
186{
187    int ret = 0;
188    BIO *in = NULL;
189    int i, count = 0;
190    X509_CRL *x = NULL;
191
192    if (file == NULL)
193        return (1);
194    in = BIO_new(BIO_s_file_internal());
195
196    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
197        X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
198        goto err;
199    }
200
201    if (type == X509_FILETYPE_PEM) {
202        for (;;) {
203            x = PEM_read_bio_X509_CRL(in, NULL, NULL, "");
204            if (x == NULL) {
205                if ((ERR_GET_REASON(ERR_peek_last_error()) ==
206                     PEM_R_NO_START_LINE) && (count > 0)) {
207                    ERR_clear_error();
208                    break;
209                } else {
210                    X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_PEM_LIB);
211                    goto err;
212                }
213            }
214            i = X509_STORE_add_crl(ctx->store_ctx, x);
215            if (!i)
216                goto err;
217            count++;
218            X509_CRL_free(x);
219            x = NULL;
220        }
221        ret = count;
222    } else if (type == X509_FILETYPE_ASN1) {
223        x = d2i_X509_CRL_bio(in, NULL);
224        if (x == NULL) {
225            X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
226            goto err;
227        }
228        i = X509_STORE_add_crl(ctx->store_ctx, x);
229        if (!i)
230            goto err;
231        ret = i;
232    } else {
233        X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
234        goto err;
235    }
236 err:
237    if (x != NULL)
238        X509_CRL_free(x);
239    if (in != NULL)
240        BIO_free(in);
241    return (ret);
242}
243
244int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
245{
246    STACK_OF(X509_INFO) *inf;
247    X509_INFO *itmp;
248    BIO *in;
249    int i, count = 0;
250    if (type != X509_FILETYPE_PEM)
251        return X509_load_cert_file(ctx, file, type);
252    in = BIO_new_file(file, "r");
253    if (!in) {
254        X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
255        return 0;
256    }
257    inf = PEM_X509_INFO_read_bio(in, NULL, NULL, "");
258    BIO_free(in);
259    if (!inf) {
260        X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
261        return 0;
262    }
263    for (i = 0; i < sk_X509_INFO_num(inf); i++) {
264        itmp = sk_X509_INFO_value(inf, i);
265        if (itmp->x509) {
266            X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
267            count++;
268        }
269        if (itmp->crl) {
270            X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
271            count++;
272        }
273    }
274    sk_X509_INFO_pop_free(inf, X509_INFO_free);
275    return count;
276}
277
278#endif                          /* OPENSSL_NO_STDIO */
279