1 |
|
|
/* $OpenBSD: pem_info.c,v 1.22 2017/01/29 17:49:23 beck Exp $ */ |
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 <string.h> |
61 |
|
|
|
62 |
|
|
#include <openssl/opensslconf.h> |
63 |
|
|
|
64 |
|
|
#include <openssl/buffer.h> |
65 |
|
|
#include <openssl/err.h> |
66 |
|
|
#include <openssl/evp.h> |
67 |
|
|
#include <openssl/objects.h> |
68 |
|
|
#include <openssl/pem.h> |
69 |
|
|
#include <openssl/x509.h> |
70 |
|
|
|
71 |
|
|
#ifndef OPENSSL_NO_DSA |
72 |
|
|
#include <openssl/dsa.h> |
73 |
|
|
#endif |
74 |
|
|
#ifndef OPENSSL_NO_RSA |
75 |
|
|
#include <openssl/rsa.h> |
76 |
|
|
#endif |
77 |
|
|
|
78 |
|
|
STACK_OF(X509_INFO) * |
79 |
|
|
PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, |
80 |
|
|
void *u) |
81 |
|
|
{ |
82 |
|
|
BIO *b; |
83 |
|
|
STACK_OF(X509_INFO) *ret; |
84 |
|
|
|
85 |
|
|
if ((b = BIO_new(BIO_s_file())) == NULL) { |
86 |
|
|
PEMerror(ERR_R_BUF_LIB); |
87 |
|
|
return (0); |
88 |
|
|
} |
89 |
|
|
BIO_set_fp(b, fp, BIO_NOCLOSE); |
90 |
|
|
ret = PEM_X509_INFO_read_bio(b, sk, cb, u); |
91 |
|
|
BIO_free(b); |
92 |
|
|
return (ret); |
93 |
|
|
} |
94 |
|
|
|
95 |
|
|
STACK_OF(X509_INFO) * |
96 |
|
|
PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, |
97 |
|
|
void *u) |
98 |
|
|
{ |
99 |
|
|
X509_INFO *xi = NULL; |
100 |
|
676 |
char *name = NULL, *header = NULL; |
101 |
|
|
void *pp; |
102 |
|
338 |
unsigned char *data = NULL; |
103 |
|
338 |
const unsigned char *p; |
104 |
|
338 |
long len, error = 0; |
105 |
|
|
int ok = 0; |
106 |
|
|
STACK_OF(X509_INFO) *ret = NULL; |
107 |
|
|
unsigned int i, raw, ptype; |
108 |
|
|
d2i_of_void *d2i = 0; |
109 |
|
|
|
110 |
✓✗ |
338 |
if (sk == NULL) { |
111 |
✗✓ |
338 |
if ((ret = sk_X509_INFO_new_null()) == NULL) { |
112 |
|
|
PEMerror(ERR_R_MALLOC_FAILURE); |
113 |
|
|
return 0; |
114 |
|
|
} |
115 |
|
|
} else |
116 |
|
|
ret = sk; |
117 |
|
|
|
118 |
✓✗ |
338 |
if ((xi = X509_INFO_new()) == NULL) |
119 |
|
|
goto err; |
120 |
|
12746 |
for (;;) { |
121 |
|
|
raw = 0; |
122 |
|
|
ptype = 0; |
123 |
|
13084 |
i = PEM_read_bio(bp, &name, &header, &data, &len); |
124 |
✓✓ |
13084 |
if (i == 0) { |
125 |
|
338 |
error = ERR_GET_REASON(ERR_peek_last_error()); |
126 |
✓✗ |
338 |
if (error == PEM_R_NO_START_LINE) { |
127 |
|
338 |
ERR_clear_error(); |
128 |
|
|
break; |
129 |
|
|
} |
130 |
|
|
goto err; |
131 |
|
|
} |
132 |
|
|
start: |
133 |
✗✓✗✗
|
25154 |
if ((strcmp(name, PEM_STRING_X509) == 0) || |
134 |
|
|
(strcmp(name, PEM_STRING_X509_OLD) == 0)) { |
135 |
|
|
d2i = (D2I_OF(void))d2i_X509; |
136 |
✓✓ |
25154 |
if (xi->x509 != NULL) { |
137 |
✓✗ |
12408 |
if (!sk_X509_INFO_push(ret, xi)) |
138 |
|
|
goto err; |
139 |
✓✗ |
12408 |
if ((xi = X509_INFO_new()) == NULL) |
140 |
|
|
goto err; |
141 |
|
|
goto start; |
142 |
|
|
} |
143 |
|
12746 |
pp = &(xi->x509); |
144 |
✗✗ |
12746 |
} else if ((strcmp(name, PEM_STRING_X509_TRUSTED) == 0)) { |
145 |
|
|
d2i = (D2I_OF(void))d2i_X509_AUX; |
146 |
|
|
if (xi->x509 != NULL) { |
147 |
|
|
if (!sk_X509_INFO_push(ret, xi)) |
148 |
|
|
goto err; |
149 |
|
|
if ((xi = X509_INFO_new()) == NULL) |
150 |
|
|
goto err; |
151 |
|
|
goto start; |
152 |
|
|
} |
153 |
|
|
pp = &(xi->x509); |
154 |
|
|
} else if (strcmp(name, PEM_STRING_X509_CRL) == 0) { |
155 |
|
|
d2i = (D2I_OF(void))d2i_X509_CRL; |
156 |
|
|
if (xi->crl != NULL) { |
157 |
|
|
if (!sk_X509_INFO_push(ret, xi)) |
158 |
|
|
goto err; |
159 |
|
|
if ((xi = X509_INFO_new()) == NULL) |
160 |
|
|
goto err; |
161 |
|
|
goto start; |
162 |
|
|
} |
163 |
|
|
pp = &(xi->crl); |
164 |
|
|
} else |
165 |
|
|
#ifndef OPENSSL_NO_RSA |
166 |
|
|
if (strcmp(name, PEM_STRING_RSA) == 0) { |
167 |
|
|
d2i = (D2I_OF(void))d2i_RSAPrivateKey; |
168 |
|
|
if (xi->x_pkey != NULL) { |
169 |
|
|
if (!sk_X509_INFO_push(ret, xi)) |
170 |
|
|
goto err; |
171 |
|
|
if ((xi = X509_INFO_new()) == NULL) |
172 |
|
|
goto err; |
173 |
|
|
goto start; |
174 |
|
|
} |
175 |
|
|
|
176 |
|
|
xi->enc_data = NULL; |
177 |
|
|
xi->enc_len = 0; |
178 |
|
|
|
179 |
|
|
xi->x_pkey = X509_PKEY_new(); |
180 |
|
|
if (xi->x_pkey == NULL) |
181 |
|
|
goto err; |
182 |
|
|
ptype = EVP_PKEY_RSA; |
183 |
|
|
pp = &xi->x_pkey->dec_pkey; |
184 |
|
|
if (strlen(header) > 10) /* assume encrypted */ |
185 |
|
|
raw = 1; |
186 |
|
|
} else |
187 |
|
|
#endif |
188 |
|
|
#ifndef OPENSSL_NO_DSA |
189 |
|
|
if (strcmp(name, PEM_STRING_DSA) == 0) { |
190 |
|
|
d2i = (D2I_OF(void))d2i_DSAPrivateKey; |
191 |
|
|
if (xi->x_pkey != NULL) { |
192 |
|
|
if (!sk_X509_INFO_push(ret, xi)) |
193 |
|
|
goto err; |
194 |
|
|
if ((xi = X509_INFO_new()) == NULL) |
195 |
|
|
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 |
|
|
if (xi->x_pkey == NULL) |
204 |
|
|
goto err; |
205 |
|
|
ptype = EVP_PKEY_DSA; |
206 |
|
|
pp = &xi->x_pkey->dec_pkey; |
207 |
|
|
if (strlen(header) > 10) /* assume encrypted */ |
208 |
|
|
raw = 1; |
209 |
|
|
} else |
210 |
|
|
#endif |
211 |
|
|
#ifndef OPENSSL_NO_EC |
212 |
|
|
if (strcmp(name, PEM_STRING_ECPRIVATEKEY) == 0) { |
213 |
|
|
d2i = (D2I_OF(void))d2i_ECPrivateKey; |
214 |
|
|
if (xi->x_pkey != NULL) { |
215 |
|
|
if (!sk_X509_INFO_push(ret, xi)) |
216 |
|
|
goto err; |
217 |
|
|
if ((xi = X509_INFO_new()) == NULL) |
218 |
|
|
goto err; |
219 |
|
|
goto start; |
220 |
|
|
} |
221 |
|
|
|
222 |
|
|
xi->enc_data = NULL; |
223 |
|
|
xi->enc_len = 0; |
224 |
|
|
|
225 |
|
|
xi->x_pkey = X509_PKEY_new(); |
226 |
|
|
if (xi->x_pkey == NULL) |
227 |
|
|
goto err; |
228 |
|
|
ptype = EVP_PKEY_EC; |
229 |
|
|
pp = &xi->x_pkey->dec_pkey; |
230 |
|
|
if (strlen(header) > 10) /* assume encrypted */ |
231 |
|
|
raw = 1; |
232 |
|
|
} else |
233 |
|
|
#endif |
234 |
|
|
{ |
235 |
|
|
d2i = NULL; |
236 |
|
|
pp = NULL; |
237 |
|
|
} |
238 |
|
|
|
239 |
✓✗ |
12746 |
if (d2i != NULL) { |
240 |
✓✗ |
12746 |
if (!raw) { |
241 |
|
12746 |
EVP_CIPHER_INFO cipher; |
242 |
|
|
|
243 |
✗✓ |
12746 |
if (!PEM_get_EVP_CIPHER_INFO(header, &cipher)) |
244 |
|
|
goto err; |
245 |
✗✓ |
12746 |
if (!PEM_do_header(&cipher, data, &len, cb, u)) |
246 |
|
|
goto err; |
247 |
|
12746 |
p = data; |
248 |
✗✓ |
12746 |
if (ptype) { |
249 |
|
|
if (!d2i_PrivateKey(ptype, pp, &p, |
250 |
|
|
len)) { |
251 |
|
|
PEMerror(ERR_R_ASN1_LIB); |
252 |
|
|
goto err; |
253 |
|
|
} |
254 |
✗✓ |
12746 |
} else if (d2i(pp, &p, len) == NULL) { |
255 |
|
|
PEMerror(ERR_R_ASN1_LIB); |
256 |
|
|
goto err; |
257 |
|
|
} |
258 |
✓✓✓ |
26168 |
} else { /* encrypted RSA data */ |
259 |
|
|
if (!PEM_get_EVP_CIPHER_INFO(header, |
260 |
|
|
&xi->enc_cipher)) |
261 |
|
|
goto err; |
262 |
|
|
xi->enc_data = (char *)data; |
263 |
|
|
xi->enc_len = (int)len; |
264 |
|
|
data = NULL; |
265 |
|
|
} |
266 |
|
|
} else { |
267 |
|
|
/* unknown */ |
268 |
|
|
} |
269 |
|
12746 |
free(name); |
270 |
|
12746 |
free(header); |
271 |
|
12746 |
free(data); |
272 |
|
12746 |
name = NULL; |
273 |
|
12746 |
header = NULL; |
274 |
|
12746 |
data = NULL; |
275 |
|
|
} |
276 |
|
|
|
277 |
|
|
/* if the last one hasn't been pushed yet and there is anything |
278 |
|
|
* in it then add it to the stack ... |
279 |
|
|
*/ |
280 |
✗✓✗✗ ✗✗ |
338 |
if ((xi->x509 != NULL) || (xi->crl != NULL) || |
281 |
|
|
(xi->x_pkey != NULL) || (xi->enc_data != NULL)) { |
282 |
✓✗ |
338 |
if (!sk_X509_INFO_push(ret, xi)) |
283 |
|
|
goto err; |
284 |
|
|
xi = NULL; |
285 |
|
338 |
} |
286 |
|
338 |
ok = 1; |
287 |
|
|
|
288 |
|
|
err: |
289 |
✗✓ |
338 |
if (xi != NULL) |
290 |
|
|
X509_INFO_free(xi); |
291 |
✗✓ |
338 |
if (!ok) { |
292 |
|
|
for (i = 0; ((int)i) < sk_X509_INFO_num(ret); i++) { |
293 |
|
|
xi = sk_X509_INFO_value(ret, i); |
294 |
|
|
X509_INFO_free(xi); |
295 |
|
|
} |
296 |
|
|
if (ret != sk) |
297 |
|
|
sk_X509_INFO_free(ret); |
298 |
|
|
ret = NULL; |
299 |
|
|
} |
300 |
|
|
|
301 |
|
338 |
free(name); |
302 |
|
338 |
free(header); |
303 |
|
338 |
free(data); |
304 |
|
338 |
return (ret); |
305 |
|
338 |
} |
306 |
|
|
|
307 |
|
|
|
308 |
|
|
/* A TJH addition */ |
309 |
|
|
int |
310 |
|
|
PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, |
311 |
|
|
unsigned char *kstr, int klen, pem_password_cb *cb, void *u) |
312 |
|
|
{ |
313 |
|
|
EVP_CIPHER_CTX ctx; |
314 |
|
|
int i, ret = 0; |
315 |
|
|
unsigned char *data = NULL; |
316 |
|
|
const char *objstr = NULL; |
317 |
|
|
char buf[PEM_BUFSIZE]; |
318 |
|
|
unsigned char *iv = NULL; |
319 |
|
|
|
320 |
|
|
if (enc != NULL) { |
321 |
|
|
objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); |
322 |
|
|
if (objstr == NULL) { |
323 |
|
|
PEMerror(PEM_R_UNSUPPORTED_CIPHER); |
324 |
|
|
goto err; |
325 |
|
|
} |
326 |
|
|
} |
327 |
|
|
|
328 |
|
|
/* now for the fun part ... if we have a private key then |
329 |
|
|
* we have to be able to handle a not-yet-decrypted key |
330 |
|
|
* being written out correctly ... if it is decrypted or |
331 |
|
|
* it is non-encrypted then we use the base code |
332 |
|
|
*/ |
333 |
|
|
if (xi->x_pkey != NULL) { |
334 |
|
|
if ((xi->enc_data != NULL) && (xi->enc_len > 0) ) { |
335 |
|
|
if (enc == NULL) { |
336 |
|
|
PEMerror(PEM_R_CIPHER_IS_NULL); |
337 |
|
|
goto err; |
338 |
|
|
} |
339 |
|
|
|
340 |
|
|
/* copy from weirdo names into more normal things */ |
341 |
|
|
iv = xi->enc_cipher.iv; |
342 |
|
|
data = (unsigned char *)xi->enc_data; |
343 |
|
|
i = xi->enc_len; |
344 |
|
|
|
345 |
|
|
/* we take the encryption data from the |
346 |
|
|
* internal stuff rather than what the |
347 |
|
|
* user has passed us ... as we have to |
348 |
|
|
* match exactly for some strange reason |
349 |
|
|
*/ |
350 |
|
|
objstr = OBJ_nid2sn( |
351 |
|
|
EVP_CIPHER_nid(xi->enc_cipher.cipher)); |
352 |
|
|
if (objstr == NULL) { |
353 |
|
|
PEMerror(PEM_R_UNSUPPORTED_CIPHER); |
354 |
|
|
goto err; |
355 |
|
|
} |
356 |
|
|
|
357 |
|
|
/* create the right magic header stuff */ |
358 |
|
|
if (strlen(objstr) + 23 + 2 * enc->iv_len + 13 > |
359 |
|
|
sizeof buf) { |
360 |
|
|
PEMerror(ASN1_R_BUFFER_TOO_SMALL); |
361 |
|
|
goto err; |
362 |
|
|
} |
363 |
|
|
buf[0] = '\0'; |
364 |
|
|
PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); |
365 |
|
|
PEM_dek_info(buf, objstr, enc->iv_len, (char *)iv); |
366 |
|
|
|
367 |
|
|
/* use the normal code to write things out */ |
368 |
|
|
i = PEM_write_bio(bp, PEM_STRING_RSA, buf, data, i); |
369 |
|
|
if (i <= 0) |
370 |
|
|
goto err; |
371 |
|
|
} else { |
372 |
|
|
/* Add DSA/DH */ |
373 |
|
|
#ifndef OPENSSL_NO_RSA |
374 |
|
|
/* normal optionally encrypted stuff */ |
375 |
|
|
if (PEM_write_bio_RSAPrivateKey(bp, |
376 |
|
|
xi->x_pkey->dec_pkey->pkey.rsa, |
377 |
|
|
enc, kstr, klen, cb, u) <= 0) |
378 |
|
|
goto err; |
379 |
|
|
#endif |
380 |
|
|
} |
381 |
|
|
} |
382 |
|
|
|
383 |
|
|
/* if we have a certificate then write it out now */ |
384 |
|
|
if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp, xi->x509) <= 0)) |
385 |
|
|
goto err; |
386 |
|
|
|
387 |
|
|
/* we are ignoring anything else that is loaded into the X509_INFO |
388 |
|
|
* structure for the moment ... as I don't need it so I'm not |
389 |
|
|
* coding it here and Eric can do it when this makes it into the |
390 |
|
|
* base library --tjh |
391 |
|
|
*/ |
392 |
|
|
|
393 |
|
|
ret = 1; |
394 |
|
|
|
395 |
|
|
err: |
396 |
|
|
explicit_bzero((char *)&ctx, sizeof(ctx)); |
397 |
|
|
explicit_bzero(buf, PEM_BUFSIZE); |
398 |
|
|
return (ret); |
399 |
|
|
} |