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1 | /* apps/crl2p7.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 | /* | |
60 | * This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu> and | |
61 | * donated 'to the cause' along with lots and lots of other fixes to the | |
62 | * library. | |
63 | */ | |
64 | ||
65 | #include <stdio.h> | |
66 | #include <string.h> | |
67 | #include <sys/types.h> | |
68 | #include "apps.h" | |
69 | #include <openssl/err.h> | |
70 | #include <openssl/evp.h> | |
71 | #include <openssl/x509.h> | |
72 | #include <openssl/pkcs7.h> | |
73 | #include <openssl/pem.h> | |
74 | #include <openssl/objects.h> | |
75 | ||
76 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile); | |
77 | #undef PROG | |
78 | #define PROG crl2pkcs7_main | |
79 | ||
80 | /*- | |
81 | * -inform arg - input format - default PEM (DER or PEM) | |
82 | * -outform arg - output format - default PEM | |
83 | * -in arg - input file - default stdin | |
84 | * -out arg - output file - default stdout | |
85 | */ | |
86 | ||
87 | int MAIN(int, char **); | |
88 | ||
89 | int MAIN(int argc, char **argv) | |
90 | { | |
91 | int i, badops = 0; | |
92 | BIO *in = NULL, *out = NULL; | |
93 | int informat, outformat; | |
94 | char *infile, *outfile, *prog, *certfile; | |
95 | PKCS7 *p7 = NULL; | |
96 | PKCS7_SIGNED *p7s = NULL; | |
97 | X509_CRL *crl = NULL; | |
98 | STACK_OF(OPENSSL_STRING) *certflst = NULL; | |
99 | STACK_OF(X509_CRL) *crl_stack = NULL; | |
100 | STACK_OF(X509) *cert_stack = NULL; | |
101 | int ret = 1, nocrl = 0; | |
102 | ||
103 | apps_startup(); | |
104 | ||
105 | if (bio_err == NULL) | |
106 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
107 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
108 | ||
109 | infile = NULL; | |
110 | outfile = NULL; | |
111 | informat = FORMAT_PEM; | |
112 | outformat = FORMAT_PEM; | |
113 | ||
114 | prog = argv[0]; | |
115 | argc--; | |
116 | argv++; | |
117 | while (argc >= 1) { | |
118 | if (strcmp(*argv, "-inform") == 0) { | |
119 | if (--argc < 1) | |
120 | goto bad; | |
121 | informat = str2fmt(*(++argv)); | |
122 | } else if (strcmp(*argv, "-outform") == 0) { | |
123 | if (--argc < 1) | |
124 | goto bad; | |
125 | outformat = str2fmt(*(++argv)); | |
126 | } else if (strcmp(*argv, "-in") == 0) { | |
127 | if (--argc < 1) | |
128 | goto bad; | |
129 | infile = *(++argv); | |
130 | } else if (strcmp(*argv, "-nocrl") == 0) { | |
131 | nocrl = 1; | |
132 | } else if (strcmp(*argv, "-out") == 0) { | |
133 | if (--argc < 1) | |
134 | goto bad; | |
135 | outfile = *(++argv); | |
136 | } else if (strcmp(*argv, "-certfile") == 0) { | |
137 | if (--argc < 1) | |
138 | goto bad; | |
139 | if (!certflst) | |
140 | certflst = sk_OPENSSL_STRING_new_null(); | |
141 | if (!certflst) | |
142 | goto end; | |
143 | if (!sk_OPENSSL_STRING_push(certflst, *(++argv))) { | |
144 | sk_OPENSSL_STRING_free(certflst); | |
145 | goto end; | |
146 | } | |
147 | } else { | |
148 | BIO_printf(bio_err, "unknown option %s\n", *argv); | |
149 | badops = 1; | |
150 | break; | |
151 | } | |
152 | argc--; | |
153 | argv++; | |
154 | } | |
155 | ||
156 | if (badops) { | |
157 | bad: | |
158 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); | |
159 | BIO_printf(bio_err, "where options are\n"); | |
160 | BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); | |
161 | BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); | |
162 | BIO_printf(bio_err, " -in arg input file\n"); | |
163 | BIO_printf(bio_err, " -out arg output file\n"); | |
164 | BIO_printf(bio_err, | |
165 | " -certfile arg certificates file of chain to a trusted CA\n"); | |
166 | BIO_printf(bio_err, " (can be used more than once)\n"); | |
167 | BIO_printf(bio_err, | |
168 | " -nocrl no crl to load, just certs from '-certfile'\n"); | |
169 | ret = 1; | |
170 | goto end; | |
171 | } | |
172 | ||
173 | ERR_load_crypto_strings(); | |
174 | ||
175 | in = BIO_new(BIO_s_file()); | |
176 | out = BIO_new(BIO_s_file()); | |
177 | if ((in == NULL) || (out == NULL)) { | |
178 | ERR_print_errors(bio_err); | |
179 | goto end; | |
180 | } | |
181 | ||
182 | if (!nocrl) { | |
183 | if (infile == NULL) | |
184 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
185 | else { | |
186 | if (BIO_read_filename(in, infile) <= 0) { | |
187 | perror(infile); | |
188 | goto end; | |
189 | } | |
190 | } | |
191 | ||
192 | if (informat == FORMAT_ASN1) | |
193 | crl = d2i_X509_CRL_bio(in, NULL); | |
194 | else if (informat == FORMAT_PEM) | |
195 | crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); | |
196 | else { | |
197 | BIO_printf(bio_err, "bad input format specified for input crl\n"); | |
198 | goto end; | |
199 | } | |
200 | if (crl == NULL) { | |
201 | BIO_printf(bio_err, "unable to load CRL\n"); | |
202 | ERR_print_errors(bio_err); | |
203 | goto end; | |
204 | } | |
205 | } | |
206 | ||
207 | if ((p7 = PKCS7_new()) == NULL) | |
208 | goto end; | |
209 | if ((p7s = PKCS7_SIGNED_new()) == NULL) | |
210 | goto end; | |
211 | p7->type = OBJ_nid2obj(NID_pkcs7_signed); | |
212 | p7->d.sign = p7s; | |
213 | p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data); | |
214 | ||
215 | if (!ASN1_INTEGER_set(p7s->version, 1)) | |
216 | goto end; | |
217 | if ((crl_stack = sk_X509_CRL_new_null()) == NULL) | |
218 | goto end; | |
219 | p7s->crl = crl_stack; | |
220 | if (crl != NULL) { | |
221 | sk_X509_CRL_push(crl_stack, crl); | |
222 | crl = NULL; /* now part of p7 for OPENSSL_freeing */ | |
223 | } | |
224 | ||
225 | if ((cert_stack = sk_X509_new_null()) == NULL) | |
226 | goto end; | |
227 | p7s->cert = cert_stack; | |
228 | ||
229 | if (certflst) | |
230 | for (i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) { | |
231 | certfile = sk_OPENSSL_STRING_value(certflst, i); | |
232 | if (add_certs_from_file(cert_stack, certfile) < 0) { | |
233 | BIO_printf(bio_err, "error loading certificates\n"); | |
234 | ERR_print_errors(bio_err); | |
235 | goto end; | |
236 | } | |
237 | } | |
238 | ||
239 | sk_OPENSSL_STRING_free(certflst); | |
240 | ||
241 | if (outfile == NULL) { | |
242 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
243 | #ifdef OPENSSL_SYS_VMS | |
244 | { | |
245 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
246 | out = BIO_push(tmpbio, out); | |
247 | } | |
248 | #endif | |
249 | } else { | |
250 | if (BIO_write_filename(out, outfile) <= 0) { | |
251 | perror(outfile); | |
252 | goto end; | |
253 | } | |
254 | } | |
255 | ||
256 | if (outformat == FORMAT_ASN1) | |
257 | i = i2d_PKCS7_bio(out, p7); | |
258 | else if (outformat == FORMAT_PEM) | |
259 | i = PEM_write_bio_PKCS7(out, p7); | |
260 | else { | |
261 | BIO_printf(bio_err, "bad output format specified for outfile\n"); | |
262 | goto end; | |
263 | } | |
264 | if (!i) { | |
265 | BIO_printf(bio_err, "unable to write pkcs7 object\n"); | |
266 | ERR_print_errors(bio_err); | |
267 | goto end; | |
268 | } | |
269 | ret = 0; | |
270 | end: | |
271 | BIO_free(in); | |
272 | BIO_free_all(out); | |
273 | PKCS7_free(p7); | |
274 | if (crl != NULL) | |
275 | X509_CRL_free(crl); | |
276 | ||
277 | apps_shutdown(); | |
278 | OPENSSL_EXIT(ret); | |
279 | } | |
280 | ||
281 | /*- | |
282 | *---------------------------------------------------------------------- | |
283 | * int add_certs_from_file | |
284 | * | |
285 | * Read a list of certificates to be checked from a file. | |
286 | * | |
287 | * Results: | |
288 | * number of certs added if successful, -1 if not. | |
289 | *---------------------------------------------------------------------- | |
290 | */ | |
291 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile) | |
292 | { | |
293 | BIO *in = NULL; | |
294 | int count = 0; | |
295 | int ret = -1; | |
296 | STACK_OF(X509_INFO) *sk = NULL; | |
297 | X509_INFO *xi; | |
298 | ||
299 | in = BIO_new(BIO_s_file()); | |
300 | if ((in == NULL) || (BIO_read_filename(in, certfile) <= 0)) { | |
301 | BIO_printf(bio_err, "error opening the file, %s\n", certfile); | |
302 | goto end; | |
303 | } | |
304 | ||
305 | /* This loads from a file, a stack of x509/crl/pkey sets */ | |
306 | sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); | |
307 | if (sk == NULL) { | |
308 | BIO_printf(bio_err, "error reading the file, %s\n", certfile); | |
309 | goto end; | |
310 | } | |
311 | ||
312 | /* scan over it and pull out the CRL's */ | |
313 | while (sk_X509_INFO_num(sk)) { | |
314 | xi = sk_X509_INFO_shift(sk); | |
315 | if (xi->x509 != NULL) { | |
316 | sk_X509_push(stack, xi->x509); | |
317 | xi->x509 = NULL; | |
318 | count++; | |
319 | } | |
320 | X509_INFO_free(xi); | |
321 | } | |
322 | ||
323 | ret = count; | |
324 | end: | |
325 | /* never need to OPENSSL_free x */ | |
326 | BIO_free(in); | |
327 | if (sk != NULL) | |
328 | sk_X509_INFO_free(sk); | |
329 | return (ret); | |
330 | } |