Annotation of src/usr.bin/openssl/crl2p7.c, Revision 1.9
1.9 ! guenther 1: /* $OpenBSD: crl2p7.c,v 1.8 2018/02/07 05:47:55 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:
1.9 ! guenther 105: static const struct option crl2p7_options[] = {
1.3 doug 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
160: crl2pkcs7_main(int argc, char **argv)
161: {
1.3 doug 162: int i;
1.1 jsing 163: BIO *in = NULL, *out = NULL;
1.3 doug 164: char *certfile;
1.1 jsing 165: PKCS7 *p7 = NULL;
166: PKCS7_SIGNED *p7s = NULL;
167: X509_CRL *crl = NULL;
1.3 doug 168: STACK_OF(X509_CRL) *crl_stack = NULL;
169: STACK_OF(X509) *cert_stack = NULL;
170: int ret = 1;
1.5 doug 171:
172: if (single_execution) {
1.7 deraadt 173: if (pledge("stdio cpath wpath rpath", NULL) == -1) {
1.5 doug 174: perror("pledge");
1.6 doug 175: exit(1);
176: }
1.5 doug 177: }
1.3 doug 178:
179: memset(&crl2p7_config, 0, sizeof(crl2p7_config));
180:
181: crl2p7_config.informat = FORMAT_PEM;
182: crl2p7_config.outformat = FORMAT_PEM;
1.1 jsing 183:
1.3 doug 184: if (options_parse(argc, argv, crl2p7_options, NULL, NULL) != 0) {
185: crl2p7_usage();
1.1 jsing 186: goto end;
187: }
188:
189: in = BIO_new(BIO_s_file());
190: out = BIO_new(BIO_s_file());
1.3 doug 191: if (in == NULL || out == NULL) {
1.1 jsing 192: ERR_print_errors(bio_err);
193: goto end;
194: }
1.3 doug 195: if (!crl2p7_config.nocrl) {
196: if (crl2p7_config.infile == NULL)
1.1 jsing 197: BIO_set_fp(in, stdin, BIO_NOCLOSE);
198: else {
1.3 doug 199: if (BIO_read_filename(in, crl2p7_config.infile) <= 0) {
200: perror(crl2p7_config.infile);
1.1 jsing 201: goto end;
202: }
203: }
204:
1.3 doug 205: if (crl2p7_config.informat == FORMAT_ASN1)
1.1 jsing 206: crl = d2i_X509_CRL_bio(in, NULL);
1.3 doug 207: else if (crl2p7_config.informat == FORMAT_PEM)
1.1 jsing 208: crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
209: else {
210: BIO_printf(bio_err,
211: "bad input format specified for input crl\n");
212: goto end;
213: }
214: if (crl == NULL) {
215: BIO_printf(bio_err, "unable to load CRL\n");
216: ERR_print_errors(bio_err);
217: goto end;
218: }
219: }
220: if ((p7 = PKCS7_new()) == NULL)
221: goto end;
222: if ((p7s = PKCS7_SIGNED_new()) == NULL)
223: goto end;
224: p7->type = OBJ_nid2obj(NID_pkcs7_signed);
225: p7->d.sign = p7s;
226: p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data);
227:
228: if (!ASN1_INTEGER_set(p7s->version, 1))
229: goto end;
230: if ((crl_stack = sk_X509_CRL_new_null()) == NULL)
231: goto end;
232: p7s->crl = crl_stack;
233: if (crl != NULL) {
234: sk_X509_CRL_push(crl_stack, crl);
235: crl = NULL; /* now part of p7 for freeing */
236: }
237: if ((cert_stack = sk_X509_new_null()) == NULL)
238: goto end;
239: p7s->cert = cert_stack;
240:
1.3 doug 241: if (crl2p7_config.certflst) {
242: for (i = 0; i < sk_OPENSSL_STRING_num(crl2p7_config.certflst); i++) {
243: certfile = sk_OPENSSL_STRING_value(crl2p7_config.certflst, i);
1.1 jsing 244: if (add_certs_from_file(cert_stack, certfile) < 0) {
245: BIO_printf(bio_err,
246: "error loading certificates\n");
247: ERR_print_errors(bio_err);
248: goto end;
249: }
250: }
1.3 doug 251: }
1.1 jsing 252:
1.3 doug 253: sk_OPENSSL_STRING_free(crl2p7_config.certflst);
1.1 jsing 254:
1.3 doug 255: if (crl2p7_config.outfile == NULL) {
1.1 jsing 256: BIO_set_fp(out, stdout, BIO_NOCLOSE);
257: } else {
1.3 doug 258: if (BIO_write_filename(out, crl2p7_config.outfile) <= 0) {
259: perror(crl2p7_config.outfile);
1.1 jsing 260: goto end;
261: }
262: }
263:
1.3 doug 264: if (crl2p7_config.outformat == FORMAT_ASN1)
1.1 jsing 265: i = i2d_PKCS7_bio(out, p7);
1.3 doug 266: else if (crl2p7_config.outformat == FORMAT_PEM)
1.1 jsing 267: i = PEM_write_bio_PKCS7(out, p7);
268: else {
269: BIO_printf(bio_err,
270: "bad output format specified for outfile\n");
271: goto end;
272: }
273: if (!i) {
274: BIO_printf(bio_err, "unable to write pkcs7 object\n");
275: ERR_print_errors(bio_err);
276: goto end;
277: }
278: ret = 0;
279:
1.8 jsing 280: end:
1.1 jsing 281: if (in != NULL)
282: BIO_free(in);
283: if (out != NULL)
284: BIO_free_all(out);
285: if (p7 != NULL)
286: PKCS7_free(p7);
287: if (crl != NULL)
288: X509_CRL_free(crl);
289:
290: return (ret);
291: }
292:
293: static int
1.3 doug 294: add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
1.1 jsing 295: {
296: BIO *in = NULL;
297: int count = 0;
298: int ret = -1;
1.3 doug 299: STACK_OF(X509_INFO) *sk = NULL;
1.1 jsing 300: X509_INFO *xi;
301:
302: in = BIO_new(BIO_s_file());
1.3 doug 303: if (in == NULL || BIO_read_filename(in, certfile) <= 0) {
1.1 jsing 304: BIO_printf(bio_err, "error opening the file, %s\n", certfile);
305: goto end;
306: }
307: /* This loads from a file, a stack of x509/crl/pkey sets */
308: sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
309: if (sk == NULL) {
310: BIO_printf(bio_err, "error reading the file, %s\n", certfile);
311: goto end;
312: }
313: /* scan over it and pull out the CRL's */
314: while (sk_X509_INFO_num(sk)) {
315: xi = sk_X509_INFO_shift(sk);
316: if (xi->x509 != NULL) {
317: sk_X509_push(stack, xi->x509);
318: xi->x509 = NULL;
319: count++;
320: }
321: X509_INFO_free(xi);
322: }
323:
324: ret = count;
325:
1.8 jsing 326: end:
1.1 jsing 327: /* never need to free x */
328: if (in != NULL)
329: BIO_free(in);
330: if (sk != NULL)
331: sk_X509_INFO_free(sk);
332: return (ret);
333: }
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