Annotation of src/usr.bin/openssl/crl2p7.c, Revision 1.3
1.3 ! doug 1: /* $OpenBSD: crl2p7.c,v 1.2 2014/08/28 14:23:52 jsing Exp $ */
1.1 jsing 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 <sys/types.h>
64:
65: #include <stdio.h>
66: #include <string.h>
67:
68: #include "apps.h"
69:
70: #include <openssl/err.h>
71: #include <openssl/evp.h>
72: #include <openssl/objects.h>
73: #include <openssl/pem.h>
74: #include <openssl/pkcs7.h>
75: #include <openssl/x509.h>
76:
77: static int add_certs_from_file(STACK_OF(X509) * stack, char *certfile);
78:
1.3 ! doug 79: static struct {
! 80: STACK_OF(OPENSSL_STRING) *certflst;
! 81: char *infile;
! 82: int informat;
! 83: int nocrl;
! 84: char *outfile;
! 85: int outformat;
! 86: } crl2p7_config;
! 87:
! 88: static int
! 89: crl2p7_opt_certfile(char *arg)
! 90: {
! 91: if (crl2p7_config.certflst == NULL)
! 92: crl2p7_config.certflst = sk_OPENSSL_STRING_new_null();
! 93: if (crl2p7_config.certflst == NULL) {
! 94: fprintf(stderr, "out of memory\n");
! 95: return (1);
! 96: }
! 97: if (!sk_OPENSSL_STRING_push(crl2p7_config.certflst, arg)) {
! 98: fprintf(stderr, "out of memory\n");
! 99: return (1);
! 100: }
! 101:
! 102: return (0);
! 103: }
! 104:
! 105: static struct option crl2p7_options[] = {
! 106: {
! 107: .name = "certfile",
! 108: .argname = "file",
! 109: .desc = "Chain of PEM certificates to a trusted CA",
! 110: .type = OPTION_ARG_FUNC,
! 111: .opt.argfunc = crl2p7_opt_certfile,
! 112: },
! 113: {
! 114: .name = "in",
! 115: .argname = "file",
! 116: .desc = "Input file (default stdin)",
! 117: .type = OPTION_ARG,
! 118: .opt.arg = &crl2p7_config.infile,
! 119: },
! 120: {
! 121: .name = "inform",
! 122: .argname = "format",
! 123: .desc = "Input format (DER or PEM (default))",
! 124: .type = OPTION_ARG_FORMAT,
! 125: .opt.value = &crl2p7_config.informat,
! 126: },
! 127: {
! 128: .name = "nocrl",
! 129: .desc = "Do not read CRL from input or include CRL in output",
! 130: .type = OPTION_FLAG,
! 131: .opt.flag = &crl2p7_config.nocrl,
! 132: },
! 133: {
! 134: .name = "out",
! 135: .argname = "file",
! 136: .desc = "Output file (default stdout)",
! 137: .type = OPTION_ARG,
! 138: .opt.arg = &crl2p7_config.outfile,
! 139: },
! 140: {
! 141: .name = "outform",
! 142: .argname = "format",
! 143: .desc = "Output format (DER or PEM (default))",
! 144: .type = OPTION_ARG_FORMAT,
! 145: .opt.value = &crl2p7_config.outformat,
! 146: },
! 147: { NULL },
! 148: };
! 149:
! 150: static void
! 151: crl2p7_usage(void)
! 152: {
! 153: fprintf(stderr,
! 154: "usage: crl2p7 [-certfile file] [-in file] [-inform DER | PEM]\n"
! 155: " [-nocrl] [-out file] [-outform DER | PEM]\n\n");
! 156: options_usage(crl2p7_options);
! 157: }
1.1 jsing 158:
159: int crl2pkcs7_main(int, char **);
160:
161: int
162: crl2pkcs7_main(int argc, char **argv)
163: {
1.3 ! doug 164: int i;
1.1 jsing 165: BIO *in = NULL, *out = NULL;
1.3 ! doug 166: char *certfile;
1.1 jsing 167: PKCS7 *p7 = NULL;
168: PKCS7_SIGNED *p7s = NULL;
169: X509_CRL *crl = NULL;
1.3 ! doug 170: STACK_OF(X509_CRL) *crl_stack = NULL;
! 171: STACK_OF(X509) *cert_stack = NULL;
! 172: int ret = 1;
! 173:
! 174: memset(&crl2p7_config, 0, sizeof(crl2p7_config));
! 175:
! 176: crl2p7_config.informat = FORMAT_PEM;
! 177: crl2p7_config.outformat = FORMAT_PEM;
1.1 jsing 178:
1.3 ! doug 179: if (options_parse(argc, argv, crl2p7_options, NULL, NULL) != 0) {
! 180: crl2p7_usage();
1.1 jsing 181: goto end;
182: }
183:
184: in = BIO_new(BIO_s_file());
185: out = BIO_new(BIO_s_file());
1.3 ! doug 186: if (in == NULL || out == NULL) {
1.1 jsing 187: ERR_print_errors(bio_err);
188: goto end;
189: }
1.3 ! doug 190: if (!crl2p7_config.nocrl) {
! 191: if (crl2p7_config.infile == NULL)
1.1 jsing 192: BIO_set_fp(in, stdin, BIO_NOCLOSE);
193: else {
1.3 ! doug 194: if (BIO_read_filename(in, crl2p7_config.infile) <= 0) {
! 195: perror(crl2p7_config.infile);
1.1 jsing 196: goto end;
197: }
198: }
199:
1.3 ! doug 200: if (crl2p7_config.informat == FORMAT_ASN1)
1.1 jsing 201: crl = d2i_X509_CRL_bio(in, NULL);
1.3 ! doug 202: else if (crl2p7_config.informat == FORMAT_PEM)
1.1 jsing 203: crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
204: else {
205: BIO_printf(bio_err,
206: "bad input format specified for input crl\n");
207: goto end;
208: }
209: if (crl == NULL) {
210: BIO_printf(bio_err, "unable to load CRL\n");
211: ERR_print_errors(bio_err);
212: goto end;
213: }
214: }
215: if ((p7 = PKCS7_new()) == NULL)
216: goto end;
217: if ((p7s = PKCS7_SIGNED_new()) == NULL)
218: goto end;
219: p7->type = OBJ_nid2obj(NID_pkcs7_signed);
220: p7->d.sign = p7s;
221: p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data);
222:
223: if (!ASN1_INTEGER_set(p7s->version, 1))
224: goto end;
225: if ((crl_stack = sk_X509_CRL_new_null()) == NULL)
226: goto end;
227: p7s->crl = crl_stack;
228: if (crl != NULL) {
229: sk_X509_CRL_push(crl_stack, crl);
230: crl = NULL; /* now part of p7 for freeing */
231: }
232: if ((cert_stack = sk_X509_new_null()) == NULL)
233: goto end;
234: p7s->cert = cert_stack;
235:
1.3 ! doug 236: if (crl2p7_config.certflst) {
! 237: for (i = 0; i < sk_OPENSSL_STRING_num(crl2p7_config.certflst); i++) {
! 238: certfile = sk_OPENSSL_STRING_value(crl2p7_config.certflst, i);
1.1 jsing 239: if (add_certs_from_file(cert_stack, certfile) < 0) {
240: BIO_printf(bio_err,
241: "error loading certificates\n");
242: ERR_print_errors(bio_err);
243: goto end;
244: }
245: }
1.3 ! doug 246: }
1.1 jsing 247:
1.3 ! doug 248: sk_OPENSSL_STRING_free(crl2p7_config.certflst);
1.1 jsing 249:
1.3 ! doug 250: if (crl2p7_config.outfile == NULL) {
1.1 jsing 251: BIO_set_fp(out, stdout, BIO_NOCLOSE);
252: } else {
1.3 ! doug 253: if (BIO_write_filename(out, crl2p7_config.outfile) <= 0) {
! 254: perror(crl2p7_config.outfile);
1.1 jsing 255: goto end;
256: }
257: }
258:
1.3 ! doug 259: if (crl2p7_config.outformat == FORMAT_ASN1)
1.1 jsing 260: i = i2d_PKCS7_bio(out, p7);
1.3 ! doug 261: else if (crl2p7_config.outformat == FORMAT_PEM)
1.1 jsing 262: i = PEM_write_bio_PKCS7(out, p7);
263: else {
264: BIO_printf(bio_err,
265: "bad output format specified for outfile\n");
266: goto end;
267: }
268: if (!i) {
269: BIO_printf(bio_err, "unable to write pkcs7 object\n");
270: ERR_print_errors(bio_err);
271: goto end;
272: }
273: ret = 0;
274:
275: end:
276: if (in != NULL)
277: BIO_free(in);
278: if (out != NULL)
279: BIO_free_all(out);
280: if (p7 != NULL)
281: PKCS7_free(p7);
282: if (crl != NULL)
283: X509_CRL_free(crl);
284:
285: return (ret);
286: }
287:
288: static int
1.3 ! doug 289: add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
1.1 jsing 290: {
291: BIO *in = NULL;
292: int count = 0;
293: int ret = -1;
1.3 ! doug 294: STACK_OF(X509_INFO) *sk = NULL;
1.1 jsing 295: X509_INFO *xi;
296:
297: in = BIO_new(BIO_s_file());
1.3 ! doug 298: if (in == NULL || BIO_read_filename(in, certfile) <= 0) {
1.1 jsing 299: BIO_printf(bio_err, "error opening the file, %s\n", certfile);
300: goto end;
301: }
302: /* This loads from a file, a stack of x509/crl/pkey sets */
303: sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
304: if (sk == NULL) {
305: BIO_printf(bio_err, "error reading the file, %s\n", certfile);
306: goto end;
307: }
308: /* scan over it and pull out the CRL's */
309: while (sk_X509_INFO_num(sk)) {
310: xi = sk_X509_INFO_shift(sk);
311: if (xi->x509 != NULL) {
312: sk_X509_push(stack, xi->x509);
313: xi->x509 = NULL;
314: count++;
315: }
316: X509_INFO_free(xi);
317: }
318:
319: ret = count;
320:
321: end:
322: /* never need to free x */
323: if (in != NULL)
324: BIO_free(in);
325: if (sk != NULL)
326: sk_X509_INFO_free(sk);
327: return (ret);
328: }
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