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crl2p7.c 11 KB

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