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d02b48c6 | 1 | /* crypto/pem/pem_info.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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" | |
ec577822 BM |
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> | |
3eeaab4b | 66 | #ifndef OPENSSL_NO_RSA |
60a938c6 | 67 | #include <openssl/rsa.h> |
3eeaab4b NL |
68 | #endif |
69 | #ifndef OPENSSL_NO_DSA | |
60a938c6 | 70 | #include <openssl/dsa.h> |
3eeaab4b | 71 | #endif |
d02b48c6 | 72 | |
cf1b7d96 | 73 | #ifndef OPENSSL_NO_FP_API |
5e4430e7 BL |
74 | STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, |
75 | pem_password_cb *cb, void *u) | |
d02b48c6 RE |
76 | { |
77 | BIO *b; | |
20b85fdd | 78 | STACK_OF(X509_INFO) *ret; |
d02b48c6 RE |
79 | |
80 | if ((b=BIO_new(BIO_s_file())) == NULL) | |
81 | { | |
82 | PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB); | |
83 | return(0); | |
84 | } | |
85 | BIO_set_fp(b,fp,BIO_NOCLOSE); | |
74678cc2 | 86 | ret=PEM_X509_INFO_read_bio(b,sk,cb,u); |
d02b48c6 RE |
87 | BIO_free(b); |
88 | return(ret); | |
89 | } | |
90 | #endif | |
91 | ||
5e4430e7 BL |
92 | STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, |
93 | pem_password_cb *cb, void *u) | |
d02b48c6 RE |
94 | { |
95 | X509_INFO *xi=NULL; | |
8bb826ee BL |
96 | char *name=NULL,*header=NULL; |
97 | void *pp; | |
41a15c4f BL |
98 | unsigned char *data=NULL; |
99 | const unsigned char *p; | |
d02b48c6 RE |
100 | long len,error=0; |
101 | int ok=0; | |
20b85fdd | 102 | STACK_OF(X509_INFO) *ret=NULL; |
43c9825c | 103 | unsigned int i,raw,ptype; |
0e345353 | 104 | d2i_of_void *d2i = 0; |
d02b48c6 RE |
105 | |
106 | if (sk == NULL) | |
107 | { | |
20b85fdd | 108 | if ((ret=sk_X509_INFO_new_null()) == NULL) |
d02b48c6 RE |
109 | { |
110 | PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE); | |
111 | goto err; | |
112 | } | |
113 | } | |
114 | else | |
115 | ret=sk; | |
116 | ||
117 | if ((xi=X509_INFO_new()) == NULL) goto err; | |
118 | for (;;) | |
119 | { | |
120 | raw=0; | |
43c9825c | 121 | ptype = 0; |
d02b48c6 RE |
122 | i=PEM_read_bio(bp,&name,&header,&data,&len); |
123 | if (i == 0) | |
124 | { | |
16b0384b | 125 | error=ERR_GET_REASON(ERR_peek_last_error()); |
d02b48c6 RE |
126 | if (error == PEM_R_NO_START_LINE) |
127 | { | |
128 | ERR_clear_error(); | |
129 | break; | |
130 | } | |
131 | goto err; | |
132 | } | |
133 | start: | |
134 | if ( (strcmp(name,PEM_STRING_X509) == 0) || | |
135 | (strcmp(name,PEM_STRING_X509_OLD) == 0)) | |
136 | { | |
836ec0c7 | 137 | d2i=(D2I_OF(void))d2i_X509; |
d02b48c6 RE |
138 | if (xi->x509 != NULL) |
139 | { | |
20b85fdd | 140 | if (!sk_X509_INFO_push(ret,xi)) goto err; |
d02b48c6 | 141 | if ((xi=X509_INFO_new()) == NULL) goto err; |
06556a17 DSH |
142 | goto start; |
143 | } | |
8bb826ee | 144 | pp=&(xi->x509); |
06556a17 DSH |
145 | } |
146 | else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0)) | |
147 | { | |
836ec0c7 | 148 | d2i=(D2I_OF(void))d2i_X509_AUX; |
06556a17 DSH |
149 | if (xi->x509 != NULL) |
150 | { | |
151 | if (!sk_X509_INFO_push(ret,xi)) goto err; | |
152 | if ((xi=X509_INFO_new()) == NULL) goto err; | |
d02b48c6 RE |
153 | goto start; |
154 | } | |
8bb826ee | 155 | pp=&(xi->x509); |
d02b48c6 RE |
156 | } |
157 | else if (strcmp(name,PEM_STRING_X509_CRL) == 0) | |
158 | { | |
836ec0c7 | 159 | d2i=(D2I_OF(void))d2i_X509_CRL; |
d02b48c6 RE |
160 | if (xi->crl != NULL) |
161 | { | |
20b85fdd | 162 | if (!sk_X509_INFO_push(ret,xi)) goto err; |
d02b48c6 RE |
163 | if ((xi=X509_INFO_new()) == NULL) goto err; |
164 | goto start; | |
165 | } | |
8bb826ee | 166 | pp=&(xi->crl); |
d02b48c6 RE |
167 | } |
168 | else | |
cf1b7d96 | 169 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
170 | if (strcmp(name,PEM_STRING_RSA) == 0) |
171 | { | |
d02b48c6 RE |
172 | if (xi->x_pkey != NULL) |
173 | { | |
20b85fdd | 174 | if (!sk_X509_INFO_push(ret,xi)) goto err; |
d02b48c6 RE |
175 | if ((xi=X509_INFO_new()) == NULL) goto err; |
176 | goto start; | |
177 | } | |
178 | ||
179 | xi->enc_data=NULL; | |
180 | xi->enc_len=0; | |
181 | ||
182 | xi->x_pkey=X509_PKEY_new(); | |
43c9825c DSH |
183 | ptype=EVP_PKEY_RSA; |
184 | pp=&xi->x_pkey->dec_pkey; | |
d02b48c6 RE |
185 | if ((int)strlen(header) > 10) /* assume encrypted */ |
186 | raw=1; | |
187 | } | |
188 | else | |
189 | #endif | |
cf1b7d96 | 190 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
191 | if (strcmp(name,PEM_STRING_DSA) == 0) |
192 | { | |
836ec0c7 | 193 | d2i=(D2I_OF(void))d2i_DSAPrivateKey; |
d02b48c6 RE |
194 | if (xi->x_pkey != NULL) |
195 | { | |
20b85fdd | 196 | if (!sk_X509_INFO_push(ret,xi)) goto err; |
d02b48c6 RE |
197 | if ((xi=X509_INFO_new()) == NULL) goto err; |
198 | goto start; | |
199 | } | |
200 | ||
201 | xi->enc_data=NULL; | |
202 | xi->enc_len=0; | |
203 | ||
204 | xi->x_pkey=X509_PKEY_new(); | |
43c9825c DSH |
205 | ptype = EVP_PKEY_DSA; |
206 | pp=&xi->x_pkey->dec_pkey; | |
d02b48c6 RE |
207 | if ((int)strlen(header) > 10) /* assume encrypted */ |
208 | raw=1; | |
209 | } | |
210 | else | |
4d94ae00 | 211 | #endif |
14a7cfb3 | 212 | #ifndef OPENSSL_NO_EC |
0bee0e62 | 213 | if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0) |
4d94ae00 | 214 | { |
836ec0c7 | 215 | d2i=(D2I_OF(void))d2i_ECPrivateKey; |
4d94ae00 BM |
216 | if (xi->x_pkey != NULL) |
217 | { | |
218 | if (!sk_X509_INFO_push(ret,xi)) goto err; | |
219 | if ((xi=X509_INFO_new()) == NULL) goto err; | |
220 | goto start; | |
221 | } | |
222 | ||
223 | xi->enc_data=NULL; | |
224 | xi->enc_len=0; | |
225 | ||
226 | xi->x_pkey=X509_PKEY_new(); | |
43c9825c DSH |
227 | ptype = EVP_PKEY_EC; |
228 | pp=&xi->x_pkey->dec_pkey; | |
4d94ae00 BM |
229 | if ((int)strlen(header) > 10) /* assume encrypted */ |
230 | raw=1; | |
231 | } | |
232 | else | |
d02b48c6 RE |
233 | #endif |
234 | { | |
235 | d2i=NULL; | |
236 | pp=NULL; | |
237 | } | |
238 | ||
239 | if (d2i != NULL) | |
240 | { | |
241 | if (!raw) | |
242 | { | |
243 | EVP_CIPHER_INFO cipher; | |
244 | ||
245 | if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) | |
246 | goto err; | |
74678cc2 | 247 | if (!PEM_do_header(&cipher,data,&len,cb,u)) |
d02b48c6 RE |
248 | goto err; |
249 | p=data; | |
43c9825c DSH |
250 | if (ptype) |
251 | { | |
252 | if (!d2i_PrivateKey(ptype, pp, &p, len)) | |
253 | { | |
254 | PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB); | |
255 | goto err; | |
256 | } | |
257 | } | |
258 | else if (d2i(pp,&p,len) == NULL) | |
d02b48c6 RE |
259 | { |
260 | PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB); | |
261 | goto err; | |
262 | } | |
263 | } | |
264 | else | |
265 | { /* encrypted RSA data */ | |
266 | if (!PEM_get_EVP_CIPHER_INFO(header, | |
267 | &xi->enc_cipher)) goto err; | |
268 | xi->enc_data=(char *)data; | |
269 | xi->enc_len=(int)len; | |
270 | data=NULL; | |
271 | } | |
272 | } | |
273 | else { | |
274 | /* unknown */ | |
275 | } | |
26a3a48d RL |
276 | if (name != NULL) OPENSSL_free(name); |
277 | if (header != NULL) OPENSSL_free(header); | |
278 | if (data != NULL) OPENSSL_free(data); | |
d02b48c6 RE |
279 | name=NULL; |
280 | header=NULL; | |
281 | data=NULL; | |
282 | } | |
283 | ||
284 | /* if the last one hasn't been pushed yet and there is anything | |
285 | * in it then add it to the stack ... | |
286 | */ | |
287 | if ((xi->x509 != NULL) || (xi->crl != NULL) || | |
288 | (xi->x_pkey != NULL) || (xi->enc_data != NULL)) | |
289 | { | |
20b85fdd | 290 | if (!sk_X509_INFO_push(ret,xi)) goto err; |
d02b48c6 RE |
291 | xi=NULL; |
292 | } | |
293 | ok=1; | |
294 | err: | |
295 | if (xi != NULL) X509_INFO_free(xi); | |
296 | if (!ok) | |
297 | { | |
20b85fdd | 298 | for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++) |
d02b48c6 | 299 | { |
20b85fdd | 300 | xi=sk_X509_INFO_value(ret,i); |
d02b48c6 RE |
301 | X509_INFO_free(xi); |
302 | } | |
20b85fdd | 303 | if (ret != sk) sk_X509_INFO_free(ret); |
d02b48c6 RE |
304 | ret=NULL; |
305 | } | |
306 | ||
26a3a48d RL |
307 | if (name != NULL) OPENSSL_free(name); |
308 | if (header != NULL) OPENSSL_free(header); | |
309 | if (data != NULL) OPENSSL_free(data); | |
d02b48c6 RE |
310 | return(ret); |
311 | } | |
312 | ||
313 | ||
314 | /* A TJH addition */ | |
6b691a5c | 315 | int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, |
74678cc2 | 316 | unsigned char *kstr, int klen, pem_password_cb *cb, void *u) |
d02b48c6 RE |
317 | { |
318 | EVP_CIPHER_CTX ctx; | |
319 | int i,ret=0; | |
320 | unsigned char *data=NULL; | |
e778802f | 321 | const char *objstr=NULL; |
d02b48c6 RE |
322 | char buf[PEM_BUFSIZE]; |
323 | unsigned char *iv=NULL; | |
324 | ||
325 | if (enc != NULL) | |
326 | { | |
327 | objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc)); | |
328 | if (objstr == NULL) | |
329 | { | |
330 | PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER); | |
331 | goto err; | |
332 | } | |
333 | } | |
334 | ||
335 | /* now for the fun part ... if we have a private key then | |
336 | * we have to be able to handle a not-yet-decrypted key | |
337 | * being written out correctly ... if it is decrypted or | |
338 | * it is non-encrypted then we use the base code | |
339 | */ | |
340 | if (xi->x_pkey!=NULL) | |
341 | { | |
342 | if ( (xi->enc_data!=NULL) && (xi->enc_len>0) ) | |
343 | { | |
8bbf6ac0 BL |
344 | if (enc == NULL) |
345 | { | |
346 | PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL); | |
347 | goto err; | |
348 | } | |
349 | ||
b5f6d9dc | 350 | /* copy from weirdo names into more normal things */ |
d02b48c6 RE |
351 | iv=xi->enc_cipher.iv; |
352 | data=(unsigned char *)xi->enc_data; | |
353 | i=xi->enc_len; | |
354 | ||
355 | /* we take the encryption data from the | |
356 | * internal stuff rather than what the | |
357 | * user has passed us ... as we have to | |
358 | * match exactly for some strange reason | |
359 | */ | |
360 | objstr=OBJ_nid2sn( | |
361 | EVP_CIPHER_nid(xi->enc_cipher.cipher)); | |
362 | if (objstr == NULL) | |
363 | { | |
364 | PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER); | |
365 | goto err; | |
366 | } | |
367 | ||
368 | /* create the right magic header stuff */ | |
54a656ef | 369 | OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf); |
d02b48c6 RE |
370 | buf[0]='\0'; |
371 | PEM_proc_type(buf,PEM_TYPE_ENCRYPTED); | |
915c6a21 | 372 | PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv); |
d02b48c6 RE |
373 | |
374 | /* use the normal code to write things out */ | |
375 | i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i); | |
376 | if (i <= 0) goto err; | |
377 | } | |
378 | else | |
379 | { | |
380 | /* Add DSA/DH */ | |
cf1b7d96 | 381 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
382 | /* normal optionally encrypted stuff */ |
383 | if (PEM_write_bio_RSAPrivateKey(bp, | |
384 | xi->x_pkey->dec_pkey->pkey.rsa, | |
74678cc2 | 385 | enc,kstr,klen,cb,u)<=0) |
d02b48c6 RE |
386 | goto err; |
387 | #endif | |
388 | } | |
389 | } | |
390 | ||
391 | /* if we have a certificate then write it out now */ | |
35c2b3a9 | 392 | if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0)) |
d02b48c6 RE |
393 | goto err; |
394 | ||
395 | /* we are ignoring anything else that is loaded into the X509_INFO | |
396 | * structure for the moment ... as I don't need it so I'm not | |
397 | * coding it here and Eric can do it when this makes it into the | |
398 | * base library --tjh | |
399 | */ | |
400 | ||
401 | ret=1; | |
402 | ||
403 | err: | |
4579924b RL |
404 | OPENSSL_cleanse((char *)&ctx,sizeof(ctx)); |
405 | OPENSSL_cleanse(buf,PEM_BUFSIZE); | |
d02b48c6 RE |
406 | return(ret); |
407 | } |