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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 
71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
72 	long argl, char **ret);
73 X509_LOOKUP_METHOD x509_file_lookup=
74 	{
75 	"Load file into cache",
76 	NULL,		/* new */
77 	NULL,		/* free */
78 	NULL, 		/* init */
79 	NULL,		/* shutdown */
80 	by_file_ctrl,	/* ctrl */
81 	NULL,		/* get_by_subject */
82 	NULL,		/* get_by_issuer_serial */
83 	NULL,		/* get_by_fingerprint */
84 	NULL,		/* get_by_alias */
85 	};
86 
X509_LOOKUP_file(void)87 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
88 	{
89 	return(&x509_file_lookup);
90 	}
91 
by_file_ctrl(X509_LOOKUP * ctx,int cmd,const char * argp,long argl,char ** ret)92 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
93 	     char **ret)
94 	{
95 	int ok=0;
96 	char *file;
97 
98 	switch (cmd)
99 		{
100 	case X509_L_FILE_LOAD:
101 		if (argl == X509_FILETYPE_DEFAULT)
102 			{
103 			file = (char *)Getenv(X509_get_default_cert_file_env());
104 			if (file)
105 				ok = (X509_load_cert_crl_file(ctx,file,
106 					      X509_FILETYPE_PEM) != 0);
107 
108 			else
109 				ok = (X509_load_cert_crl_file(ctx,X509_get_default_cert_file(),
110 					      X509_FILETYPE_PEM) != 0);
111 
112 			if (!ok)
113 				{
114 				X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
115 				}
116 			}
117 		else
118 			{
119 			if(argl == X509_FILETYPE_PEM)
120 				ok = (X509_load_cert_crl_file(ctx,argp,
121 					X509_FILETYPE_PEM) != 0);
122 			else
123 				ok = (X509_load_cert_file(ctx,argp,(int)argl) != 0);
124 			}
125 		break;
126 		}
127 	return(ok);
128 	}
129 
X509_load_cert_file(X509_LOOKUP * ctx,const char * file,int type)130 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
131 	{
132 	int ret=0;
133 	BIO *in=NULL;
134 	int i,count=0;
135 	X509 *x=NULL;
136 
137 	if (file == NULL) return(1);
138 	in=BIO_new(BIO_s_file_internal());
139 
140 	if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
141 		{
142 		X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
143 		goto err;
144 		}
145 
146 	if (type == X509_FILETYPE_PEM)
147 		{
148 		for (;;)
149 			{
150 			x=PEM_read_bio_X509_AUX(in,NULL,NULL,NULL);
151 			if (x == NULL)
152 				{
153 				if ((ERR_GET_REASON(ERR_peek_last_error()) ==
154 					PEM_R_NO_START_LINE) && (count > 0))
155 					{
156 					ERR_clear_error();
157 					break;
158 					}
159 				else
160 					{
161 					X509err(X509_F_X509_LOAD_CERT_FILE,
162 						ERR_R_PEM_LIB);
163 					goto err;
164 					}
165 				}
166 			i=X509_STORE_add_cert(ctx->store_ctx,x);
167 			if (!i) goto err;
168 			count++;
169 			X509_free(x);
170 			x=NULL;
171 			}
172 		ret=count;
173 		}
174 	else if (type == X509_FILETYPE_ASN1)
175 		{
176 		x=d2i_X509_bio(in,NULL);
177 		if (x == NULL)
178 			{
179 			X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
180 			goto err;
181 			}
182 		i=X509_STORE_add_cert(ctx->store_ctx,x);
183 		if (!i) goto err;
184 		ret=i;
185 		}
186 	else
187 		{
188 		X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
189 		goto err;
190 		}
191 err:
192 	if (x != NULL) X509_free(x);
193 	if (in != NULL) BIO_free(in);
194 	return(ret);
195 	}
196 
X509_load_crl_file(X509_LOOKUP * ctx,const char * file,int type)197 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
198 	{
199 	int ret=0;
200 	BIO *in=NULL;
201 	int i,count=0;
202 	X509_CRL *x=NULL;
203 
204 	if (file == NULL) return(1);
205 	in=BIO_new(BIO_s_file_internal());
206 
207 	if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
208 		{
209 		X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
210 		goto err;
211 		}
212 
213 	if (type == X509_FILETYPE_PEM)
214 		{
215 		for (;;)
216 			{
217 			x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
218 			if (x == NULL)
219 				{
220 				if ((ERR_GET_REASON(ERR_peek_last_error()) ==
221 					PEM_R_NO_START_LINE) && (count > 0))
222 					{
223 					ERR_clear_error();
224 					break;
225 					}
226 				else
227 					{
228 					X509err(X509_F_X509_LOAD_CRL_FILE,
229 						ERR_R_PEM_LIB);
230 					goto err;
231 					}
232 				}
233 			i=X509_STORE_add_crl(ctx->store_ctx,x);
234 			if (!i) goto err;
235 			count++;
236 			X509_CRL_free(x);
237 			x=NULL;
238 			}
239 		ret=count;
240 		}
241 	else if (type == X509_FILETYPE_ASN1)
242 		{
243 		x=d2i_X509_CRL_bio(in,NULL);
244 		if (x == NULL)
245 			{
246 			X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
247 			goto err;
248 			}
249 		i=X509_STORE_add_crl(ctx->store_ctx,x);
250 		if (!i) goto err;
251 		ret=i;
252 		}
253 	else
254 		{
255 		X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
256 		goto err;
257 		}
258 err:
259 	if (x != NULL) X509_CRL_free(x);
260 	if (in != NULL) BIO_free(in);
261 	return(ret);
262 	}
263 
X509_load_cert_crl_file(X509_LOOKUP * ctx,const char * file,int type)264 int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
265 {
266 	STACK_OF(X509_INFO) *inf;
267 	X509_INFO *itmp;
268 	BIO *in;
269 	int i, count = 0;
270 	if(type != X509_FILETYPE_PEM)
271 		return X509_load_cert_file(ctx, file, type);
272 	in = BIO_new_file(file, "r");
273 	if(!in) {
274 		X509err(X509_F_X509_LOAD_CERT_CRL_FILE,ERR_R_SYS_LIB);
275 		return 0;
276 	}
277 	inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
278 	BIO_free(in);
279 	if(!inf) {
280 		X509err(X509_F_X509_LOAD_CERT_CRL_FILE,ERR_R_PEM_LIB);
281 		return 0;
282 	}
283 	for(i = 0; i < sk_X509_INFO_num(inf); i++) {
284 		itmp = sk_X509_INFO_value(inf, i);
285 		if(itmp->x509) {
286 			X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
287 			count++;
288 		}
289 		if(itmp->crl) {
290 			X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
291 			count++;
292 		}
293 	}
294 	sk_X509_INFO_pop_free(inf, X509_INFO_free);
295 	return count;
296 }
297 
298 
299 #endif /* OPENSSL_NO_STDIO */
300 
301