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 /* This was written by Gordon Chaffee <chaffee@plateau.cs.berkeley.edu>
60 * and donated 'to the cause' along with lots and lots of other fixes to
61 * the library. */
62
63 #include <stdio.h>
64 #include <string.h>
65 #include <sys/types.h>
66 #include <sys/stat.h>
67 #include "apps.h"
68 #include <openssl/err.h>
69 #include <openssl/evp.h>
70 #include <openssl/x509.h>
71 #include <openssl/pkcs7.h>
72 #include <openssl/pem.h>
73 #include <openssl/objects.h>
74
75 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile);
76 #undef PROG
77 #define PROG crl2pkcs7_main
78
79 /* -inform arg - input format - default PEM (DER or PEM)
80 * -outform arg - output format - default PEM
81 * -in arg - input file - default stdin
82 * -out arg - output file - default stdout
83 */
84
85 int MAIN(int, char **);
86
MAIN(int argc,char ** argv)87 int MAIN(int argc, char **argv)
88 {
89 int i,badops=0;
90 BIO *in=NULL,*out=NULL;
91 int informat,outformat;
92 char *infile,*outfile,*prog,*certfile;
93 PKCS7 *p7 = NULL;
94 PKCS7_SIGNED *p7s = NULL;
95 X509_CRL *crl=NULL;
96 STACK *certflst=NULL;
97 STACK_OF(X509_CRL) *crl_stack=NULL;
98 STACK_OF(X509) *cert_stack=NULL;
99 int ret=1,nocrl=0;
100
101 apps_startup();
102
103 if (bio_err == NULL)
104 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
105 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
106
107 infile=NULL;
108 outfile=NULL;
109 informat=FORMAT_PEM;
110 outformat=FORMAT_PEM;
111
112 prog=argv[0];
113 argc--;
114 argv++;
115 while (argc >= 1)
116 {
117 if (strcmp(*argv,"-inform") == 0)
118 {
119 if (--argc < 1) goto bad;
120 informat=str2fmt(*(++argv));
121 }
122 else if (strcmp(*argv,"-outform") == 0)
123 {
124 if (--argc < 1) goto bad;
125 outformat=str2fmt(*(++argv));
126 }
127 else if (strcmp(*argv,"-in") == 0)
128 {
129 if (--argc < 1) goto bad;
130 infile= *(++argv);
131 }
132 else if (strcmp(*argv,"-nocrl") == 0)
133 {
134 nocrl=1;
135 }
136 else if (strcmp(*argv,"-out") == 0)
137 {
138 if (--argc < 1) goto bad;
139 outfile= *(++argv);
140 }
141 else if (strcmp(*argv,"-certfile") == 0)
142 {
143 if (--argc < 1) goto bad;
144 if(!certflst) certflst = sk_new_null();
145 sk_push(certflst,*(++argv));
146 }
147 else
148 {
149 BIO_printf(bio_err,"unknown option %s\n",*argv);
150 badops=1;
151 break;
152 }
153 argc--;
154 argv++;
155 }
156
157 if (badops)
158 {
159 bad:
160 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
161 BIO_printf(bio_err,"where options are\n");
162 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
163 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
164 BIO_printf(bio_err," -in arg input file\n");
165 BIO_printf(bio_err," -out arg output file\n");
166 BIO_printf(bio_err," -certfile arg certificates file of chain to a trusted CA\n");
167 BIO_printf(bio_err," (can be used more than once)\n");
168 BIO_printf(bio_err," -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 {
179 ERR_print_errors(bio_err);
180 goto end;
181 }
182
183 if (!nocrl)
184 {
185 if (infile == NULL)
186 BIO_set_fp(in,stdin,BIO_NOCLOSE);
187 else
188 {
189 if (BIO_read_filename(in,infile) <= 0)
190 {
191 perror(infile);
192 goto end;
193 }
194 }
195
196 if (informat == FORMAT_ASN1)
197 crl=d2i_X509_CRL_bio(in,NULL);
198 else if (informat == FORMAT_PEM)
199 crl=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
200 else {
201 BIO_printf(bio_err,"bad input format specified for input crl\n");
202 goto end;
203 }
204 if (crl == NULL)
205 {
206 BIO_printf(bio_err,"unable to load CRL\n");
207 ERR_print_errors(bio_err);
208 goto end;
209 }
210 }
211
212 if ((p7=PKCS7_new()) == NULL) goto end;
213 if ((p7s=PKCS7_SIGNED_new()) == NULL) goto end;
214 p7->type=OBJ_nid2obj(NID_pkcs7_signed);
215 p7->d.sign=p7s;
216 p7s->contents->type=OBJ_nid2obj(NID_pkcs7_data);
217
218 if (!ASN1_INTEGER_set(p7s->version,1)) goto end;
219 if ((crl_stack=sk_X509_CRL_new_null()) == NULL) goto end;
220 p7s->crl=crl_stack;
221 if (crl != NULL)
222 {
223 sk_X509_CRL_push(crl_stack,crl);
224 crl=NULL; /* now part of p7 for OPENSSL_freeing */
225 }
226
227 if ((cert_stack=sk_X509_new_null()) == NULL) goto end;
228 p7s->cert=cert_stack;
229
230 if(certflst) for(i = 0; i < sk_num(certflst); i++) {
231 certfile = sk_value(certflst, i);
232 if (add_certs_from_file(cert_stack,certfile) < 0)
233 {
234 BIO_printf(bio_err, "error loading certificates\n");
235 ERR_print_errors(bio_err);
236 goto end;
237 }
238 }
239
240 sk_free(certflst);
241
242 if (outfile == NULL)
243 {
244 BIO_set_fp(out,stdout,BIO_NOCLOSE);
245 #ifdef OPENSSL_SYS_VMS
246 {
247 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
248 out = BIO_push(tmpbio, out);
249 }
250 #endif
251 }
252 else
253 {
254 if (BIO_write_filename(out,outfile) <= 0)
255 {
256 perror(outfile);
257 goto end;
258 }
259 }
260
261 if (outformat == FORMAT_ASN1)
262 i=i2d_PKCS7_bio(out,p7);
263 else if (outformat == FORMAT_PEM)
264 i=PEM_write_bio_PKCS7(out,p7);
265 else {
266 BIO_printf(bio_err,"bad output format specified for outfile\n");
267 goto end;
268 }
269 if (!i)
270 {
271 BIO_printf(bio_err,"unable to write pkcs7 object\n");
272 ERR_print_errors(bio_err);
273 goto end;
274 }
275 ret=0;
276 end:
277 if (in != NULL) BIO_free(in);
278 if (out != NULL) BIO_free_all(out);
279 if (p7 != NULL) PKCS7_free(p7);
280 if (crl != NULL) X509_CRL_free(crl);
281
282 apps_shutdown();
283 OPENSSL_EXIT(ret);
284 }
285
286 /*
287 *----------------------------------------------------------------------
288 * int add_certs_from_file
289 *
290 * Read a list of certificates to be checked from a file.
291 *
292 * Results:
293 * number of certs added if successful, -1 if not.
294 *----------------------------------------------------------------------
295 */
add_certs_from_file(STACK_OF (X509)* stack,char * certfile)296 static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
297 {
298 struct stat st;
299 BIO *in=NULL;
300 int count=0;
301 int ret= -1;
302 STACK_OF(X509_INFO) *sk=NULL;
303 X509_INFO *xi;
304
305 if ((stat(certfile,&st) != 0))
306 {
307 BIO_printf(bio_err,"unable to load the file, %s\n",certfile);
308 goto end;
309 }
310
311 in=BIO_new(BIO_s_file());
312 if ((in == NULL) || (BIO_read_filename(in,certfile) <= 0))
313 {
314 BIO_printf(bio_err,"error opening the file, %s\n",certfile);
315 goto end;
316 }
317
318 /* This loads from a file, a stack of x509/crl/pkey sets */
319 sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL);
320 if (sk == NULL) {
321 BIO_printf(bio_err,"error reading the file, %s\n",certfile);
322 goto end;
323 }
324
325 /* scan over it and pull out the CRL's */
326 while (sk_X509_INFO_num(sk))
327 {
328 xi=sk_X509_INFO_shift(sk);
329 if (xi->x509 != NULL)
330 {
331 sk_X509_push(stack,xi->x509);
332 xi->x509=NULL;
333 count++;
334 }
335 X509_INFO_free(xi);
336 }
337
338 ret=count;
339 end:
340 /* never need to OPENSSL_free x */
341 if (in != NULL) BIO_free(in);
342 if (sk != NULL) sk_X509_INFO_free(sk);
343 return(ret);
344 }
345
346