1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
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 |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include "internal/cryptlib.h" |
12 | #include <openssl/bn.h> |
13 | #include <openssl/evp.h> |
14 | #include <openssl/asn1.h> |
15 | #include <openssl/asn1t.h> |
16 | #include <openssl/x509.h> |
17 | #include "crypto/x509.h" |
18 | #include <openssl/objects.h> |
19 | #include <openssl/buffer.h> |
20 | #include <openssl/pem.h> |
21 | |
22 | X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md) |
23 | { |
24 | X509_REQ *ret; |
25 | X509_REQ_INFO *ri; |
26 | int i; |
27 | EVP_PKEY *pktmp; |
28 | |
29 | ret = X509_REQ_new(); |
30 | if (ret == NULL) { |
31 | X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE); |
32 | goto err; |
33 | } |
34 | |
35 | ri = &ret->req_info; |
36 | |
37 | ri->version->length = 1; |
38 | ri->version->data = OPENSSL_malloc(1); |
39 | if (ri->version->data == NULL) |
40 | goto err; |
41 | ri->version->data[0] = 0; /* version == 0 */ |
42 | |
43 | if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x))) |
44 | goto err; |
45 | |
46 | pktmp = X509_get0_pubkey(x); |
47 | if (pktmp == NULL) |
48 | goto err; |
49 | i = X509_REQ_set_pubkey(ret, pktmp); |
50 | if (!i) |
51 | goto err; |
52 | |
53 | if (pkey != NULL) { |
54 | if (!X509_REQ_sign(ret, pkey, md)) |
55 | goto err; |
56 | } |
57 | return ret; |
58 | err: |
59 | X509_REQ_free(ret); |
60 | return NULL; |
61 | } |
62 | |
63 | EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req) |
64 | { |
65 | if (req == NULL) |
66 | return NULL; |
67 | return X509_PUBKEY_get(req->req_info.pubkey); |
68 | } |
69 | |
70 | EVP_PKEY *X509_REQ_get0_pubkey(X509_REQ *req) |
71 | { |
72 | if (req == NULL) |
73 | return NULL; |
74 | return X509_PUBKEY_get0(req->req_info.pubkey); |
75 | } |
76 | |
77 | X509_PUBKEY *X509_REQ_get_X509_PUBKEY(X509_REQ *req) |
78 | { |
79 | return req->req_info.pubkey; |
80 | } |
81 | |
82 | int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k) |
83 | { |
84 | EVP_PKEY *xk = NULL; |
85 | int ok = 0; |
86 | |
87 | xk = X509_REQ_get_pubkey(x); |
88 | switch (EVP_PKEY_cmp(xk, k)) { |
89 | case 1: |
90 | ok = 1; |
91 | break; |
92 | case 0: |
93 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, |
94 | X509_R_KEY_VALUES_MISMATCH); |
95 | break; |
96 | case -1: |
97 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH); |
98 | break; |
99 | case -2: |
100 | #ifndef OPENSSL_NO_EC |
101 | if (EVP_PKEY_id(k) == EVP_PKEY_EC) { |
102 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB); |
103 | break; |
104 | } |
105 | #endif |
106 | #ifndef OPENSSL_NO_DH |
107 | if (EVP_PKEY_id(k) == EVP_PKEY_DH) { |
108 | /* No idea */ |
109 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, |
110 | X509_R_CANT_CHECK_DH_KEY); |
111 | break; |
112 | } |
113 | #endif |
114 | X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE); |
115 | } |
116 | |
117 | EVP_PKEY_free(xk); |
118 | return ok; |
119 | } |
120 | |
121 | /* |
122 | * It seems several organisations had the same idea of including a list of |
123 | * extensions in a certificate request. There are at least two OIDs that are |
124 | * used and there may be more: so the list is configurable. |
125 | */ |
126 | |
127 | static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef }; |
128 | |
129 | static int *ext_nids = ext_nid_list; |
130 | |
131 | int X509_REQ_extension_nid(int req_nid) |
132 | { |
133 | int i, nid; |
134 | for (i = 0;; i++) { |
135 | nid = ext_nids[i]; |
136 | if (nid == NID_undef) |
137 | return 0; |
138 | else if (req_nid == nid) |
139 | return 1; |
140 | } |
141 | } |
142 | |
143 | int *X509_REQ_get_extension_nids(void) |
144 | { |
145 | return ext_nids; |
146 | } |
147 | |
148 | void X509_REQ_set_extension_nids(int *nids) |
149 | { |
150 | ext_nids = nids; |
151 | } |
152 | |
153 | STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req) |
154 | { |
155 | X509_ATTRIBUTE *attr; |
156 | ASN1_TYPE *ext = NULL; |
157 | int idx, *pnid; |
158 | const unsigned char *p; |
159 | |
160 | if ((req == NULL) || !ext_nids) |
161 | return NULL; |
162 | for (pnid = ext_nids; *pnid != NID_undef; pnid++) { |
163 | idx = X509_REQ_get_attr_by_NID(req, *pnid, -1); |
164 | if (idx == -1) |
165 | continue; |
166 | attr = X509_REQ_get_attr(req, idx); |
167 | ext = X509_ATTRIBUTE_get0_type(attr, 0); |
168 | break; |
169 | } |
170 | if (!ext || (ext->type != V_ASN1_SEQUENCE)) |
171 | return NULL; |
172 | p = ext->value.sequence->data; |
173 | return (STACK_OF(X509_EXTENSION) *) |
174 | ASN1_item_d2i(NULL, &p, ext->value.sequence->length, |
175 | ASN1_ITEM_rptr(X509_EXTENSIONS)); |
176 | } |
177 | |
178 | /* |
179 | * Add a STACK_OF extensions to a certificate request: allow alternative OIDs |
180 | * in case we want to create a non standard one. |
181 | */ |
182 | |
183 | int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts, |
184 | int nid) |
185 | { |
186 | int extlen; |
187 | int rv = 0; |
188 | unsigned char *ext = NULL; |
189 | /* Generate encoding of extensions */ |
190 | extlen = ASN1_item_i2d((ASN1_VALUE *)exts, &ext, |
191 | ASN1_ITEM_rptr(X509_EXTENSIONS)); |
192 | if (extlen <= 0) |
193 | return 0; |
194 | rv = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext, extlen); |
195 | OPENSSL_free(ext); |
196 | return rv; |
197 | } |
198 | |
199 | /* This is the normal usage: use the "official" OID */ |
200 | int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts) |
201 | { |
202 | return X509_REQ_add_extensions_nid(req, exts, NID_ext_req); |
203 | } |
204 | |
205 | /* Request attribute functions */ |
206 | |
207 | int X509_REQ_get_attr_count(const X509_REQ *req) |
208 | { |
209 | return X509at_get_attr_count(req->req_info.attributes); |
210 | } |
211 | |
212 | int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos) |
213 | { |
214 | return X509at_get_attr_by_NID(req->req_info.attributes, nid, lastpos); |
215 | } |
216 | |
217 | int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, const ASN1_OBJECT *obj, |
218 | int lastpos) |
219 | { |
220 | return X509at_get_attr_by_OBJ(req->req_info.attributes, obj, lastpos); |
221 | } |
222 | |
223 | X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc) |
224 | { |
225 | return X509at_get_attr(req->req_info.attributes, loc); |
226 | } |
227 | |
228 | X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc) |
229 | { |
230 | return X509at_delete_attr(req->req_info.attributes, loc); |
231 | } |
232 | |
233 | int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr) |
234 | { |
235 | if (X509at_add1_attr(&req->req_info.attributes, attr)) |
236 | return 1; |
237 | return 0; |
238 | } |
239 | |
240 | int X509_REQ_add1_attr_by_OBJ(X509_REQ *req, |
241 | const ASN1_OBJECT *obj, int type, |
242 | const unsigned char *bytes, int len) |
243 | { |
244 | if (X509at_add1_attr_by_OBJ(&req->req_info.attributes, obj, |
245 | type, bytes, len)) |
246 | return 1; |
247 | return 0; |
248 | } |
249 | |
250 | int X509_REQ_add1_attr_by_NID(X509_REQ *req, |
251 | int nid, int type, |
252 | const unsigned char *bytes, int len) |
253 | { |
254 | if (X509at_add1_attr_by_NID(&req->req_info.attributes, nid, |
255 | type, bytes, len)) |
256 | return 1; |
257 | return 0; |
258 | } |
259 | |
260 | int X509_REQ_add1_attr_by_txt(X509_REQ *req, |
261 | const char *attrname, int type, |
262 | const unsigned char *bytes, int len) |
263 | { |
264 | if (X509at_add1_attr_by_txt(&req->req_info.attributes, attrname, |
265 | type, bytes, len)) |
266 | return 1; |
267 | return 0; |
268 | } |
269 | |
270 | long X509_REQ_get_version(const X509_REQ *req) |
271 | { |
272 | return ASN1_INTEGER_get(req->req_info.version); |
273 | } |
274 | |
275 | X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req) |
276 | { |
277 | return req->req_info.subject; |
278 | } |
279 | |
280 | void X509_REQ_get0_signature(const X509_REQ *req, const ASN1_BIT_STRING **psig, |
281 | const X509_ALGOR **palg) |
282 | { |
283 | if (psig != NULL) |
284 | *psig = req->signature; |
285 | if (palg != NULL) |
286 | *palg = &req->sig_alg; |
287 | } |
288 | |
289 | int X509_REQ_get_signature_nid(const X509_REQ *req) |
290 | { |
291 | return OBJ_obj2nid(req->sig_alg.algorithm); |
292 | } |
293 | |
294 | int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp) |
295 | { |
296 | req->req_info.enc.modified = 1; |
297 | return i2d_X509_REQ_INFO(&req->req_info, pp); |
298 | } |
299 | |