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authorcvs2svn <admin@example.com>2012-07-13 17:49:55 +0000
committercvs2svn <admin@example.com>2012-07-13 17:49:55 +0000
commit6fdb436ab2cd5b35066babb3a03be7ad0daf1ae2 (patch)
treea760cf389e7ea59961bb306a1f50bf5443205176 /src/lib/libcrypto/pem/pem_info.c
parent9204e59073bcf27e1487ec4ac46e981902ddd904 (diff)
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This commit was manufactured by cvs2git to create tag 'OPENBSD_5_2_BASE'.OPENBSD_5_2_BASE
Diffstat (limited to 'src/lib/libcrypto/pem/pem_info.c')
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diff --git a/src/lib/libcrypto/pem/pem_info.c b/src/lib/libcrypto/pem/pem_info.c
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1/* crypto/pem/pem_info.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 "cryptlib.h"
61#include <openssl/buffer.h>
62#include <openssl/objects.h>
63#include <openssl/evp.h>
64#include <openssl/x509.h>
65#include <openssl/pem.h>
66#ifndef OPENSSL_NO_RSA
67#include <openssl/rsa.h>
68#endif
69#ifndef OPENSSL_NO_DSA
70#include <openssl/dsa.h>
71#endif
72
73#ifndef OPENSSL_NO_FP_API
74STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
75 {
76 BIO *b;
77 STACK_OF(X509_INFO) *ret;
78
79 if ((b=BIO_new(BIO_s_file())) == NULL)
80 {
81 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
82 return(0);
83 }
84 BIO_set_fp(b,fp,BIO_NOCLOSE);
85 ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
86 BIO_free(b);
87 return(ret);
88 }
89#endif
90
91STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
92 {
93 X509_INFO *xi=NULL;
94 char *name=NULL,*header=NULL;
95 void *pp;
96 unsigned char *data=NULL;
97 const unsigned char *p;
98 long len,error=0;
99 int ok=0;
100 STACK_OF(X509_INFO) *ret=NULL;
101 unsigned int i,raw,ptype;
102 d2i_of_void *d2i = 0;
103
104 if (sk == NULL)
105 {
106 if ((ret=sk_X509_INFO_new_null()) == NULL)
107 {
108 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
109 goto err;
110 }
111 }
112 else
113 ret=sk;
114
115 if ((xi=X509_INFO_new()) == NULL) goto err;
116 for (;;)
117 {
118 raw=0;
119 ptype = 0;
120 i=PEM_read_bio(bp,&name,&header,&data,&len);
121 if (i == 0)
122 {
123 error=ERR_GET_REASON(ERR_peek_last_error());
124 if (error == PEM_R_NO_START_LINE)
125 {
126 ERR_clear_error();
127 break;
128 }
129 goto err;
130 }
131start:
132 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
133 (strcmp(name,PEM_STRING_X509_OLD) == 0))
134 {
135 d2i=(D2I_OF(void))d2i_X509;
136 if (xi->x509 != NULL)
137 {
138 if (!sk_X509_INFO_push(ret,xi)) goto err;
139 if ((xi=X509_INFO_new()) == NULL) goto err;
140 goto start;
141 }
142 pp=&(xi->x509);
143 }
144 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
145 {
146 d2i=(D2I_OF(void))d2i_X509_AUX;
147 if (xi->x509 != NULL)
148 {
149 if (!sk_X509_INFO_push(ret,xi)) goto err;
150 if ((xi=X509_INFO_new()) == NULL) goto err;
151 goto start;
152 }
153 pp=&(xi->x509);
154 }
155 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
156 {
157 d2i=(D2I_OF(void))d2i_X509_CRL;
158 if (xi->crl != NULL)
159 {
160 if (!sk_X509_INFO_push(ret,xi)) goto err;
161 if ((xi=X509_INFO_new()) == NULL) goto err;
162 goto start;
163 }
164 pp=&(xi->crl);
165 }
166 else
167#ifndef OPENSSL_NO_RSA
168 if (strcmp(name,PEM_STRING_RSA) == 0)
169 {
170 if (xi->x_pkey != NULL)
171 {
172 if (!sk_X509_INFO_push(ret,xi)) goto err;
173 if ((xi=X509_INFO_new()) == NULL) goto err;
174 goto start;
175 }
176
177 xi->enc_data=NULL;
178 xi->enc_len=0;
179
180 xi->x_pkey=X509_PKEY_new();
181 ptype=EVP_PKEY_RSA;
182 pp=&xi->x_pkey->dec_pkey;
183 if ((int)strlen(header) > 10) /* assume encrypted */
184 raw=1;
185 }
186 else
187#endif
188#ifndef OPENSSL_NO_DSA
189 if (strcmp(name,PEM_STRING_DSA) == 0)
190 {
191 d2i=(D2I_OF(void))d2i_DSAPrivateKey;
192 if (xi->x_pkey != NULL)
193 {
194 if (!sk_X509_INFO_push(ret,xi)) goto err;
195 if ((xi=X509_INFO_new()) == NULL) goto err;
196 goto start;
197 }
198
199 xi->enc_data=NULL;
200 xi->enc_len=0;
201
202 xi->x_pkey=X509_PKEY_new();
203 ptype = EVP_PKEY_DSA;
204 pp=&xi->x_pkey->dec_pkey;
205 if ((int)strlen(header) > 10) /* assume encrypted */
206 raw=1;
207 }
208 else
209#endif
210#ifndef OPENSSL_NO_EC
211 if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
212 {
213 d2i=(D2I_OF(void))d2i_ECPrivateKey;
214 if (xi->x_pkey != NULL)
215 {
216 if (!sk_X509_INFO_push(ret,xi)) goto err;
217 if ((xi=X509_INFO_new()) == NULL) goto err;
218 goto start;
219 }
220
221 xi->enc_data=NULL;
222 xi->enc_len=0;
223
224 xi->x_pkey=X509_PKEY_new();
225 ptype = EVP_PKEY_EC;
226 pp=&xi->x_pkey->dec_pkey;
227 if ((int)strlen(header) > 10) /* assume encrypted */
228 raw=1;
229 }
230 else
231#endif
232 {
233 d2i=NULL;
234 pp=NULL;
235 }
236
237 if (d2i != NULL)
238 {
239 if (!raw)
240 {
241 EVP_CIPHER_INFO cipher;
242
243 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
244 goto err;
245 if (!PEM_do_header(&cipher,data,&len,cb,u))
246 goto err;
247 p=data;
248 if (ptype)
249 {
250 if (!d2i_PrivateKey(ptype, pp, &p, len))
251 {
252 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
253 goto err;
254 }
255 }
256 else if (d2i(pp,&p,len) == NULL)
257 {
258 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
259 goto err;
260 }
261 }
262 else
263 { /* encrypted RSA data */
264 if (!PEM_get_EVP_CIPHER_INFO(header,
265 &xi->enc_cipher)) goto err;
266 xi->enc_data=(char *)data;
267 xi->enc_len=(int)len;
268 data=NULL;
269 }
270 }
271 else {
272 /* unknown */
273 }
274 if (name != NULL) OPENSSL_free(name);
275 if (header != NULL) OPENSSL_free(header);
276 if (data != NULL) OPENSSL_free(data);
277 name=NULL;
278 header=NULL;
279 data=NULL;
280 }
281
282 /* if the last one hasn't been pushed yet and there is anything
283 * in it then add it to the stack ...
284 */
285 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
286 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
287 {
288 if (!sk_X509_INFO_push(ret,xi)) goto err;
289 xi=NULL;
290 }
291 ok=1;
292err:
293 if (xi != NULL) X509_INFO_free(xi);
294 if (!ok)
295 {
296 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
297 {
298 xi=sk_X509_INFO_value(ret,i);
299 X509_INFO_free(xi);
300 }
301 if (ret != sk) sk_X509_INFO_free(ret);
302 ret=NULL;
303 }
304
305 if (name != NULL) OPENSSL_free(name);
306 if (header != NULL) OPENSSL_free(header);
307 if (data != NULL) OPENSSL_free(data);
308 return(ret);
309 }
310
311
312/* A TJH addition */
313int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
314 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
315 {
316 EVP_CIPHER_CTX ctx;
317 int i,ret=0;
318 unsigned char *data=NULL;
319 const char *objstr=NULL;
320 char buf[PEM_BUFSIZE];
321 unsigned char *iv=NULL;
322
323 if (enc != NULL)
324 {
325 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
326 if (objstr == NULL)
327 {
328 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
329 goto err;
330 }
331 }
332
333 /* now for the fun part ... if we have a private key then
334 * we have to be able to handle a not-yet-decrypted key
335 * being written out correctly ... if it is decrypted or
336 * it is non-encrypted then we use the base code
337 */
338 if (xi->x_pkey!=NULL)
339 {
340 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
341 {
342 if (enc == NULL)
343 {
344 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
345 goto err;
346 }
347
348 /* copy from weirdo names into more normal things */
349 iv=xi->enc_cipher.iv;
350 data=(unsigned char *)xi->enc_data;
351 i=xi->enc_len;
352
353 /* we take the encryption data from the
354 * internal stuff rather than what the
355 * user has passed us ... as we have to
356 * match exactly for some strange reason
357 */
358 objstr=OBJ_nid2sn(
359 EVP_CIPHER_nid(xi->enc_cipher.cipher));
360 if (objstr == NULL)
361 {
362 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
363 goto err;
364 }
365
366 /* create the right magic header stuff */
367 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
368 buf[0]='\0';
369 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
370 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
371
372 /* use the normal code to write things out */
373 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
374 if (i <= 0) goto err;
375 }
376 else
377 {
378 /* Add DSA/DH */
379#ifndef OPENSSL_NO_RSA
380 /* normal optionally encrypted stuff */
381 if (PEM_write_bio_RSAPrivateKey(bp,
382 xi->x_pkey->dec_pkey->pkey.rsa,
383 enc,kstr,klen,cb,u)<=0)
384 goto err;
385#endif
386 }
387 }
388
389 /* if we have a certificate then write it out now */
390 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
391 goto err;
392
393 /* we are ignoring anything else that is loaded into the X509_INFO
394 * structure for the moment ... as I don't need it so I'm not
395 * coding it here and Eric can do it when this makes it into the
396 * base library --tjh
397 */
398
399 ret=1;
400
401err:
402 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
403 OPENSSL_cleanse(buf,PEM_BUFSIZE);
404 return(ret);
405 }
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