by_file.c revision 296465 
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    char *file;
96
97    switch (cmd) {
98    case X509_L_FILE_LOAD:
99        if (argl == X509_FILETYPE_DEFAULT) {
100            file = (char *)Getenv(X509_get_default_cert_file_env());
101            if (file)
102                ok = (X509_load_cert_crl_file(ctx, file,
103                                              X509_FILETYPE_PEM) != 0);
104
105            else
106                ok = (X509_load_cert_crl_file
107                      (ctx, X509_get_default_cert_file(),
108                       X509_FILETYPE_PEM) != 0);
109
110            if (!ok) {
111                X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
112            }
113        } else {
114            if (argl == X509_FILETYPE_PEM)
115                ok = (X509_load_cert_crl_file(ctx, argp,
116                                              X509_FILETYPE_PEM) != 0);
117            else
118                ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
119        }
120        break;
121    }
122    return (ok);
123}
124
125int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
126{
127    int ret = 0;
128    BIO *in = NULL;
129    int i, count = 0;
130    X509 *x = NULL;
131
132    if (file == NULL)
133        return (1);
134    in = BIO_new(BIO_s_file_internal());
135
136    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
137        X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
138        goto err;
139    }
140
141    if (type == X509_FILETYPE_PEM) {
142        for (;;) {
143            x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
144            if (x == NULL) {
145                if ((ERR_GET_REASON(ERR_peek_last_error()) ==
146                     PEM_R_NO_START_LINE) && (count > 0)) {
147                    ERR_clear_error();
148                    break;
149                } else {
150                    X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_PEM_LIB);
151                    goto err;
152                }
153            }
154            i = X509_STORE_add_cert(ctx->store_ctx, x);
155            if (!i)
156                goto err;
157            count++;
158            X509_free(x);
159            x = NULL;
160        }
161        ret = count;
162    } else if (type == X509_FILETYPE_ASN1) {
163        x = d2i_X509_bio(in, NULL);
164        if (x == NULL) {
165            X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
166            goto err;
167        }
168        i = X509_STORE_add_cert(ctx->store_ctx, x);
169        if (!i)
170            goto err;
171        ret = i;
172    } else {
173        X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
174        goto err;
175    }
176 err:
177    if (x != NULL)
178        X509_free(x);
179    if (in != NULL)
180        BIO_free(in);
181    return (ret);
182}
183
184int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
185{
186    int ret = 0;
187    BIO *in = NULL;
188    int i, count = 0;
189    X509_CRL *x = NULL;
190
191    if (file == NULL)
192        return (1);
193    in = BIO_new(BIO_s_file_internal());
194
195    if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
196        X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
197        goto err;
198    }
199
200    if (type == X509_FILETYPE_PEM) {
201        for (;;) {
202            x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
203            if (x == NULL) {
204                if ((ERR_GET_REASON(ERR_peek_last_error()) ==
205                     PEM_R_NO_START_LINE) && (count > 0)) {
206                    ERR_clear_error();
207                    break;
208                } else {
209                    X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_PEM_LIB);
210                    goto err;
211                }
212            }
213            i = X509_STORE_add_crl(ctx->store_ctx, x);
214            if (!i)
215                goto err;
216            count++;
217            X509_CRL_free(x);
218            x = NULL;
219        }
220        ret = count;
221    } else if (type == X509_FILETYPE_ASN1) {
222        x = d2i_X509_CRL_bio(in, NULL);
223        if (x == NULL) {
224            X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
225            goto err;
226        }
227        i = X509_STORE_add_crl(ctx->store_ctx, x);
228        if (!i)
229            goto err;
230        ret = i;
231    } else {
232        X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
233        goto err;
234    }
235 err:
236    if (x != NULL)
237        X509_CRL_free(x);
238    if (in != NULL)
239        BIO_free(in);
240    return (ret);
241}
242
243int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
244{
245    STACK_OF(X509_INFO) *inf;
246    X509_INFO *itmp;
247    BIO *in;
248    int i, count = 0;
249    if (type != X509_FILETYPE_PEM)
250        return X509_load_cert_file(ctx, file, type);
251    in = BIO_new_file(file, "r");
252    if (!in) {
253        X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
254        return 0;
255    }
256    inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
257    BIO_free(in);
258    if (!inf) {
259        X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
260        return 0;
261    }
262    for (i = 0; i < sk_X509_INFO_num(inf); i++) {
263        itmp = sk_X509_INFO_value(inf, i);
264        if (itmp->x509) {
265            X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
266            count++;
267        }
268        if (itmp->crl) {
269            X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
270            count++;
271        }
272    }
273    sk_X509_INFO_pop_free(inf, X509_INFO_free);
274    return count;
275}
276
277#endif                          /* OPENSSL_NO_STDIO */
278