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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
67#ifndef OPENSSL_NO_FP_API
68STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
69 {
70 BIO *b;
71 STACK_OF(X509_INFO) *ret;
72
73 if ((b=BIO_new(BIO_s_file())) == NULL)
74 {
75 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
76 return(0);
77 }
78 BIO_set_fp(b,fp,BIO_NOCLOSE);
79 ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
80 BIO_free(b);
81 return(ret);
82 }
83#endif
84
85STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
86 {
87 X509_INFO *xi=NULL;
88 char *name=NULL,*header=NULL,**pp;
89 unsigned char *data=NULL,*p;
90 long len,error=0;
91 int ok=0;
92 STACK_OF(X509_INFO) *ret=NULL;
93 unsigned int i,raw;
94 char *(*d2i)();
95
96 if (sk == NULL)
97 {
98 if ((ret=sk_X509_INFO_new_null()) == NULL)
99 {
100 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
101 goto err;
102 }
103 }
104 else
105 ret=sk;
106
107 if ((xi=X509_INFO_new()) == NULL) goto err;
108 for (;;)
109 {
110 raw=0;
111 i=PEM_read_bio(bp,&name,&header,&data,&len);
112 if (i == 0)
113 {
114 error=ERR_GET_REASON(ERR_peek_last_error());
115 if (error == PEM_R_NO_START_LINE)
116 {
117 ERR_clear_error();
118 break;
119 }
120 goto err;
121 }
122start:
123 if ( (strcmp(name,PEM_STRING_X509) == 0) ||
124 (strcmp(name,PEM_STRING_X509_OLD) == 0))
125 {
126 d2i=(char *(*)())d2i_X509;
127 if (xi->x509 != NULL)
128 {
129 if (!sk_X509_INFO_push(ret,xi)) goto err;
130 if ((xi=X509_INFO_new()) == NULL) goto err;
131 goto start;
132 }
133 pp=(char **)&(xi->x509);
134 }
135 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
136 {
137 d2i=(char *(*)())d2i_X509_AUX;
138 if (xi->x509 != NULL)
139 {
140 if (!sk_X509_INFO_push(ret,xi)) goto err;
141 if ((xi=X509_INFO_new()) == NULL) goto err;
142 goto start;
143 }
144 pp=(char **)&(xi->x509);
145 }
146 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
147 {
148 d2i=(char *(*)())d2i_X509_CRL;
149 if (xi->crl != NULL)
150 {
151 if (!sk_X509_INFO_push(ret,xi)) goto err;
152 if ((xi=X509_INFO_new()) == NULL) goto err;
153 goto start;
154 }
155 pp=(char **)&(xi->crl);
156 }
157 else
158#ifndef OPENSSL_NO_RSA
159 if (strcmp(name,PEM_STRING_RSA) == 0)
160 {
161 d2i=(char *(*)())d2i_RSAPrivateKey;
162 if (xi->x_pkey != NULL)
163 {
164 if (!sk_X509_INFO_push(ret,xi)) goto err;
165 if ((xi=X509_INFO_new()) == NULL) goto err;
166 goto start;
167 }
168
169 xi->enc_data=NULL;
170 xi->enc_len=0;
171
172 xi->x_pkey=X509_PKEY_new();
173 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
174 goto err;
175 xi->x_pkey->dec_pkey->type=EVP_PKEY_RSA;
176 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.rsa);
177 if ((int)strlen(header) > 10) /* assume encrypted */
178 raw=1;
179 }
180 else
181#endif
182#ifndef OPENSSL_NO_DSA
183 if (strcmp(name,PEM_STRING_DSA) == 0)
184 {
185 d2i=(char *(*)())d2i_DSAPrivateKey;
186 if (xi->x_pkey != NULL)
187 {
188 if (!sk_X509_INFO_push(ret,xi)) goto err;
189 if ((xi=X509_INFO_new()) == NULL) goto err;
190 goto start;
191 }
192
193 xi->enc_data=NULL;
194 xi->enc_len=0;
195
196 xi->x_pkey=X509_PKEY_new();
197 if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
198 goto err;
199 xi->x_pkey->dec_pkey->type=EVP_PKEY_DSA;
200 pp=(char **)&(xi->x_pkey->dec_pkey->pkey.dsa);
201 if ((int)strlen(header) > 10) /* assume encrypted */
202 raw=1;
203 }
204 else
205#endif
206 {
207 d2i=NULL;
208 pp=NULL;
209 }
210
211 if (d2i != NULL)
212 {
213 if (!raw)
214 {
215 EVP_CIPHER_INFO cipher;
216
217 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
218 goto err;
219 if (!PEM_do_header(&cipher,data,&len,cb,u))
220 goto err;
221 p=data;
222 if (d2i(pp,&p,len) == NULL)
223 {
224 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
225 goto err;
226 }
227 }
228 else
229 { /* encrypted RSA data */
230 if (!PEM_get_EVP_CIPHER_INFO(header,
231 &xi->enc_cipher)) goto err;
232 xi->enc_data=(char *)data;
233 xi->enc_len=(int)len;
234 data=NULL;
235 }
236 }
237 else {
238 /* unknown */
239 }
240 if (name != NULL) OPENSSL_free(name);
241 if (header != NULL) OPENSSL_free(header);
242 if (data != NULL) OPENSSL_free(data);
243 name=NULL;
244 header=NULL;
245 data=NULL;
246 }
247
248 /* if the last one hasn't been pushed yet and there is anything
249 * in it then add it to the stack ...
250 */
251 if ((xi->x509 != NULL) || (xi->crl != NULL) ||
252 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
253 {
254 if (!sk_X509_INFO_push(ret,xi)) goto err;
255 xi=NULL;
256 }
257 ok=1;
258err:
259 if (xi != NULL) X509_INFO_free(xi);
260 if (!ok)
261 {
262 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
263 {
264 xi=sk_X509_INFO_value(ret,i);
265 X509_INFO_free(xi);
266 }
267 if (ret != sk) sk_X509_INFO_free(ret);
268 ret=NULL;
269 }
270
271 if (name != NULL) OPENSSL_free(name);
272 if (header != NULL) OPENSSL_free(header);
273 if (data != NULL) OPENSSL_free(data);
274 return(ret);
275 }
276
277
278/* A TJH addition */
279int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
280 unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
281 {
282 EVP_CIPHER_CTX ctx;
283 int i,ret=0;
284 unsigned char *data=NULL;
285 const char *objstr=NULL;
286 char buf[PEM_BUFSIZE];
287 unsigned char *iv=NULL;
288
289 if (enc != NULL)
290 {
291 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
292 if (objstr == NULL)
293 {
294 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
295 goto err;
296 }
297 }
298
299 /* now for the fun part ... if we have a private key then
300 * we have to be able to handle a not-yet-decrypted key
301 * being written out correctly ... if it is decrypted or
302 * it is non-encrypted then we use the base code
303 */
304 if (xi->x_pkey!=NULL)
305 {
306 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
307 {
308 /* copy from weirdo names into more normal things */
309 iv=xi->enc_cipher.iv;
310 data=(unsigned char *)xi->enc_data;
311 i=xi->enc_len;
312
313 /* we take the encryption data from the
314 * internal stuff rather than what the
315 * user has passed us ... as we have to
316 * match exactly for some strange reason
317 */
318 objstr=OBJ_nid2sn(
319 EVP_CIPHER_nid(xi->enc_cipher.cipher));
320 if (objstr == NULL)
321 {
322 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
323 goto err;
324 }
325
326 /* create the right magic header stuff */
327 OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
328 buf[0]='\0';
329 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
330 PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
331
332 /* use the normal code to write things out */
333 i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
334 if (i <= 0) goto err;
335 }
336 else
337 {
338 /* Add DSA/DH */
339#ifndef OPENSSL_NO_RSA
340 /* normal optionally encrypted stuff */
341 if (PEM_write_bio_RSAPrivateKey(bp,
342 xi->x_pkey->dec_pkey->pkey.rsa,
343 enc,kstr,klen,cb,u)<=0)
344 goto err;
345#endif
346 }
347 }
348
349 /* if we have a certificate then write it out now */
350 if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
351 goto err;
352
353 /* we are ignoring anything else that is loaded into the X509_INFO
354 * structure for the moment ... as I don't need it so I'm not
355 * coding it here and Eric can do it when this makes it into the
356 * base library --tjh
357 */
358
359 ret=1;
360
361err:
362 OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
363 OPENSSL_cleanse(buf,PEM_BUFSIZE);
364 return(ret);
365 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-08 06:27:53 +0000