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Commit | Line | Data |
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62867571 | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
16742672 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
ec577822 BM |
18 | #include <openssl/buffer.h> |
19 | #include <openssl/objects.h> | |
20 | #include <openssl/evp.h> | |
21 | #include <openssl/x509.h> | |
22 | #include <openssl/pem.h> | |
3c27208f RS |
23 | #include <openssl/rsa.h> |
24 | #include <openssl/dsa.h> | |
d02b48c6 | 25 | |
4b618848 | 26 | #ifndef OPENSSL_NO_STDIO |
6725682d | 27 | STACK_OF(X509_INFO) |
d8652be0 | 28 | *PEM_X509_INFO_read_ex(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, |
b4250010 | 29 | void *u, OSSL_LIB_CTX *libctx, const char *propq) |
0f113f3e MC |
30 | { |
31 | BIO *b; | |
32 | STACK_OF(X509_INFO) *ret; | |
d02b48c6 | 33 | |
0f113f3e | 34 | if ((b = BIO_new(BIO_s_file())) == NULL) { |
9311d0c4 | 35 | ERR_raise(ERR_LIB_PEM, ERR_R_BUF_LIB); |
26a7d938 | 36 | return 0; |
0f113f3e MC |
37 | } |
38 | BIO_set_fp(b, fp, BIO_NOCLOSE); | |
d8652be0 | 39 | ret = PEM_X509_INFO_read_bio_ex(b, sk, cb, u, libctx, propq); |
0f113f3e | 40 | BIO_free(b); |
26a7d938 | 41 | return ret; |
0f113f3e | 42 | } |
6725682d SL |
43 | |
44 | STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, | |
45 | pem_password_cb *cb, void *u) | |
46 | { | |
d8652be0 | 47 | return PEM_X509_INFO_read_ex(fp, sk, cb, u, NULL, NULL); |
6725682d | 48 | } |
d02b48c6 RE |
49 | #endif |
50 | ||
6725682d | 51 | STACK_OF(X509_INFO) |
d8652be0 | 52 | *PEM_X509_INFO_read_bio_ex(BIO *bp, STACK_OF(X509_INFO) *sk, |
b4250010 | 53 | pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx, |
d8652be0 | 54 | const char *propq) |
0f113f3e MC |
55 | { |
56 | X509_INFO *xi = NULL; | |
57 | char *name = NULL, *header = NULL; | |
58 | void *pp; | |
59 | unsigned char *data = NULL; | |
60 | const unsigned char *p; | |
61 | long len, error = 0; | |
62 | int ok = 0; | |
63 | STACK_OF(X509_INFO) *ret = NULL; | |
64 | unsigned int i, raw, ptype; | |
65 | d2i_of_void *d2i = 0; | |
d02b48c6 | 66 | |
0f113f3e MC |
67 | if (sk == NULL) { |
68 | if ((ret = sk_X509_INFO_new_null()) == NULL) { | |
9311d0c4 | 69 | ERR_raise(ERR_LIB_PEM, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
70 | goto err; |
71 | } | |
72 | } else | |
73 | ret = sk; | |
d02b48c6 | 74 | |
0f113f3e MC |
75 | if ((xi = X509_INFO_new()) == NULL) |
76 | goto err; | |
77 | for (;;) { | |
78 | raw = 0; | |
79 | ptype = 0; | |
80 | i = PEM_read_bio(bp, &name, &header, &data, &len); | |
81 | if (i == 0) { | |
82 | error = ERR_GET_REASON(ERR_peek_last_error()); | |
83 | if (error == PEM_R_NO_START_LINE) { | |
84 | ERR_clear_error(); | |
85 | break; | |
86 | } | |
87 | goto err; | |
88 | } | |
89 | start: | |
90 | if ((strcmp(name, PEM_STRING_X509) == 0) || | |
91 | (strcmp(name, PEM_STRING_X509_OLD) == 0)) { | |
92 | d2i = (D2I_OF(void)) d2i_X509; | |
93 | if (xi->x509 != NULL) { | |
94 | if (!sk_X509_INFO_push(ret, xi)) | |
95 | goto err; | |
96 | if ((xi = X509_INFO_new()) == NULL) | |
97 | goto err; | |
98 | goto start; | |
99 | } | |
d8652be0 | 100 | xi->x509 = X509_new_ex(libctx, propq); |
6725682d SL |
101 | if (xi->x509 == NULL) |
102 | goto err; | |
0f113f3e MC |
103 | pp = &(xi->x509); |
104 | } else if ((strcmp(name, PEM_STRING_X509_TRUSTED) == 0)) { | |
105 | d2i = (D2I_OF(void)) d2i_X509_AUX; | |
106 | if (xi->x509 != NULL) { | |
107 | if (!sk_X509_INFO_push(ret, xi)) | |
108 | goto err; | |
109 | if ((xi = X509_INFO_new()) == NULL) | |
110 | goto err; | |
111 | goto start; | |
112 | } | |
d8652be0 | 113 | xi->x509 = X509_new_ex(libctx, propq); |
6725682d SL |
114 | if (xi->x509 == NULL) |
115 | goto err; | |
0f113f3e MC |
116 | pp = &(xi->x509); |
117 | } else if (strcmp(name, PEM_STRING_X509_CRL) == 0) { | |
118 | d2i = (D2I_OF(void)) d2i_X509_CRL; | |
119 | if (xi->crl != NULL) { | |
120 | if (!sk_X509_INFO_push(ret, xi)) | |
121 | goto err; | |
122 | if ((xi = X509_INFO_new()) == NULL) | |
123 | goto err; | |
124 | goto start; | |
125 | } | |
126 | pp = &(xi->crl); | |
127 | } else | |
cf1b7d96 | 128 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
129 | if (strcmp(name, PEM_STRING_RSA) == 0) { |
130 | d2i = (D2I_OF(void)) d2i_RSAPrivateKey; | |
131 | if (xi->x_pkey != NULL) { | |
132 | if (!sk_X509_INFO_push(ret, xi)) | |
133 | goto err; | |
134 | if ((xi = X509_INFO_new()) == NULL) | |
135 | goto err; | |
136 | goto start; | |
137 | } | |
d02b48c6 | 138 | |
0f113f3e MC |
139 | xi->enc_data = NULL; |
140 | xi->enc_len = 0; | |
d02b48c6 | 141 | |
0f113f3e | 142 | xi->x_pkey = X509_PKEY_new(); |
90945fa3 MC |
143 | if (xi->x_pkey == NULL) |
144 | goto err; | |
0f113f3e MC |
145 | ptype = EVP_PKEY_RSA; |
146 | pp = &xi->x_pkey->dec_pkey; | |
147 | if ((int)strlen(header) > 10) /* assume encrypted */ | |
148 | raw = 1; | |
149 | } else | |
d02b48c6 | 150 | #endif |
cf1b7d96 | 151 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
152 | if (strcmp(name, PEM_STRING_DSA) == 0) { |
153 | d2i = (D2I_OF(void)) d2i_DSAPrivateKey; | |
154 | if (xi->x_pkey != NULL) { | |
155 | if (!sk_X509_INFO_push(ret, xi)) | |
156 | goto err; | |
157 | if ((xi = X509_INFO_new()) == NULL) | |
158 | goto err; | |
159 | goto start; | |
160 | } | |
d02b48c6 | 161 | |
0f113f3e MC |
162 | xi->enc_data = NULL; |
163 | xi->enc_len = 0; | |
d02b48c6 | 164 | |
0f113f3e | 165 | xi->x_pkey = X509_PKEY_new(); |
90945fa3 MC |
166 | if (xi->x_pkey == NULL) |
167 | goto err; | |
0f113f3e MC |
168 | ptype = EVP_PKEY_DSA; |
169 | pp = &xi->x_pkey->dec_pkey; | |
170 | if ((int)strlen(header) > 10) /* assume encrypted */ | |
171 | raw = 1; | |
172 | } else | |
4d94ae00 | 173 | #endif |
14a7cfb3 | 174 | #ifndef OPENSSL_NO_EC |
0f113f3e MC |
175 | if (strcmp(name, PEM_STRING_ECPRIVATEKEY) == 0) { |
176 | d2i = (D2I_OF(void)) d2i_ECPrivateKey; | |
177 | if (xi->x_pkey != NULL) { | |
178 | if (!sk_X509_INFO_push(ret, xi)) | |
179 | goto err; | |
180 | if ((xi = X509_INFO_new()) == NULL) | |
181 | goto err; | |
182 | goto start; | |
183 | } | |
184 | ||
185 | xi->enc_data = NULL; | |
186 | xi->enc_len = 0; | |
187 | ||
188 | xi->x_pkey = X509_PKEY_new(); | |
90945fa3 MC |
189 | if (xi->x_pkey == NULL) |
190 | goto err; | |
0f113f3e MC |
191 | ptype = EVP_PKEY_EC; |
192 | pp = &xi->x_pkey->dec_pkey; | |
193 | if ((int)strlen(header) > 10) /* assume encrypted */ | |
194 | raw = 1; | |
195 | } else | |
d02b48c6 | 196 | #endif |
0f113f3e MC |
197 | { |
198 | d2i = NULL; | |
199 | pp = NULL; | |
200 | } | |
d02b48c6 | 201 | |
0f113f3e MC |
202 | if (d2i != NULL) { |
203 | if (!raw) { | |
204 | EVP_CIPHER_INFO cipher; | |
d02b48c6 | 205 | |
0f113f3e MC |
206 | if (!PEM_get_EVP_CIPHER_INFO(header, &cipher)) |
207 | goto err; | |
208 | if (!PEM_do_header(&cipher, data, &len, cb, u)) | |
209 | goto err; | |
210 | p = data; | |
211 | if (ptype) { | |
212 | if (!d2i_PrivateKey(ptype, pp, &p, len)) { | |
9311d0c4 | 213 | ERR_raise(ERR_LIB_PEM, ERR_R_ASN1_LIB); |
0f113f3e MC |
214 | goto err; |
215 | } | |
216 | } else if (d2i(pp, &p, len) == NULL) { | |
9311d0c4 | 217 | ERR_raise(ERR_LIB_PEM, ERR_R_ASN1_LIB); |
0f113f3e MC |
218 | goto err; |
219 | } | |
220 | } else { /* encrypted RSA data */ | |
221 | if (!PEM_get_EVP_CIPHER_INFO(header, &xi->enc_cipher)) | |
222 | goto err; | |
223 | xi->enc_data = (char *)data; | |
224 | xi->enc_len = (int)len; | |
225 | data = NULL; | |
226 | } | |
227 | } else { | |
228 | /* unknown */ | |
229 | } | |
b548a1f1 | 230 | OPENSSL_free(name); |
0f113f3e | 231 | name = NULL; |
b548a1f1 | 232 | OPENSSL_free(header); |
0f113f3e | 233 | header = NULL; |
b548a1f1 | 234 | OPENSSL_free(data); |
0f113f3e MC |
235 | data = NULL; |
236 | } | |
d02b48c6 | 237 | |
0f113f3e MC |
238 | /* |
239 | * if the last one hasn't been pushed yet and there is anything in it | |
240 | * then add it to the stack ... | |
241 | */ | |
242 | if ((xi->x509 != NULL) || (xi->crl != NULL) || | |
243 | (xi->x_pkey != NULL) || (xi->enc_data != NULL)) { | |
244 | if (!sk_X509_INFO_push(ret, xi)) | |
245 | goto err; | |
246 | xi = NULL; | |
247 | } | |
248 | ok = 1; | |
249 | err: | |
222561fe | 250 | X509_INFO_free(xi); |
0f113f3e MC |
251 | if (!ok) { |
252 | for (i = 0; ((int)i) < sk_X509_INFO_num(ret); i++) { | |
253 | xi = sk_X509_INFO_value(ret, i); | |
254 | X509_INFO_free(xi); | |
255 | } | |
256 | if (ret != sk) | |
257 | sk_X509_INFO_free(ret); | |
258 | ret = NULL; | |
259 | } | |
d02b48c6 | 260 | |
b548a1f1 RS |
261 | OPENSSL_free(name); |
262 | OPENSSL_free(header); | |
263 | OPENSSL_free(data); | |
26a7d938 | 264 | return ret; |
0f113f3e | 265 | } |
d02b48c6 | 266 | |
6725682d SL |
267 | STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, |
268 | pem_password_cb *cb, void *u) | |
269 | { | |
d8652be0 | 270 | return PEM_X509_INFO_read_bio_ex(bp, sk, cb, u, NULL, NULL); |
6725682d SL |
271 | } |
272 | ||
d02b48c6 | 273 | /* A TJH addition */ |
de0799b0 RL |
274 | int PEM_X509_INFO_write_bio(BIO *bp, const X509_INFO *xi, EVP_CIPHER *enc, |
275 | const unsigned char *kstr, int klen, | |
0f113f3e MC |
276 | pem_password_cb *cb, void *u) |
277 | { | |
0f113f3e MC |
278 | int i, ret = 0; |
279 | unsigned char *data = NULL; | |
280 | const char *objstr = NULL; | |
281 | char buf[PEM_BUFSIZE]; | |
de0799b0 | 282 | const unsigned char *iv = NULL; |
0f113f3e MC |
283 | |
284 | if (enc != NULL) { | |
285 | objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); | |
e40ada04 MC |
286 | if (objstr == NULL |
287 | /* | |
288 | * Check "Proc-Type: 4,Encrypted\nDEK-Info: objstr,hex-iv\n" | |
289 | * fits into buf | |
290 | */ | |
291 | || (strlen(objstr) + 23 + 2 * EVP_CIPHER_iv_length(enc) + 13) | |
292 | > sizeof(buf)) { | |
9311d0c4 | 293 | ERR_raise(ERR_LIB_PEM, PEM_R_UNSUPPORTED_CIPHER); |
0f113f3e MC |
294 | goto err; |
295 | } | |
296 | } | |
d02b48c6 | 297 | |
0f113f3e MC |
298 | /* |
299 | * now for the fun part ... if we have a private key then we have to be | |
300 | * able to handle a not-yet-decrypted key being written out correctly ... | |
301 | * if it is decrypted or it is non-encrypted then we use the base code | |
302 | */ | |
303 | if (xi->x_pkey != NULL) { | |
304 | if ((xi->enc_data != NULL) && (xi->enc_len > 0)) { | |
305 | if (enc == NULL) { | |
9311d0c4 | 306 | ERR_raise(ERR_LIB_PEM, PEM_R_CIPHER_IS_NULL); |
0f113f3e MC |
307 | goto err; |
308 | } | |
8bbf6ac0 | 309 | |
0f113f3e MC |
310 | /* copy from weirdo names into more normal things */ |
311 | iv = xi->enc_cipher.iv; | |
312 | data = (unsigned char *)xi->enc_data; | |
313 | i = xi->enc_len; | |
d02b48c6 | 314 | |
0f113f3e MC |
315 | /* |
316 | * we take the encryption data from the internal stuff rather | |
317 | * than what the user has passed us ... as we have to match | |
318 | * exactly for some strange reason | |
319 | */ | |
320 | objstr = OBJ_nid2sn(EVP_CIPHER_nid(xi->enc_cipher.cipher)); | |
321 | if (objstr == NULL) { | |
9311d0c4 | 322 | ERR_raise(ERR_LIB_PEM, PEM_R_UNSUPPORTED_CIPHER); |
0f113f3e MC |
323 | goto err; |
324 | } | |
d02b48c6 | 325 | |
df443918 | 326 | /* Create the right magic header stuff */ |
0f113f3e MC |
327 | buf[0] = '\0'; |
328 | PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); | |
6c2ff56e | 329 | PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc), |
de0799b0 | 330 | (const char *)iv); |
d02b48c6 | 331 | |
0f113f3e MC |
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) | |
335 | goto err; | |
336 | } else { | |
337 | /* Add DSA/DH */ | |
cf1b7d96 | 338 | #ifndef OPENSSL_NO_RSA |
0f113f3e MC |
339 | /* normal optionally encrypted stuff */ |
340 | if (PEM_write_bio_RSAPrivateKey(bp, | |
3aeb9348 | 341 | EVP_PKEY_get0_RSA(xi->x_pkey->dec_pkey), |
0f113f3e MC |
342 | enc, kstr, klen, cb, u) <= 0) |
343 | goto err; | |
d02b48c6 | 344 | #endif |
0f113f3e MC |
345 | } |
346 | } | |
d02b48c6 | 347 | |
0f113f3e MC |
348 | /* if we have a certificate then write it out now */ |
349 | if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp, xi->x509) <= 0)) | |
350 | goto err; | |
d02b48c6 | 351 | |
0f113f3e MC |
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 coding it | |
355 | * here and Eric can do it when this makes it into the base library --tjh | |
356 | */ | |
d02b48c6 | 357 | |
0f113f3e | 358 | ret = 1; |
d02b48c6 | 359 | |
0f113f3e | 360 | err: |
0f113f3e | 361 | OPENSSL_cleanse(buf, PEM_BUFSIZE); |
26a7d938 | 362 | return ret; |
0f113f3e | 363 | } |