Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 "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 | |
| 74 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile); |
| 75 | #undef PROG |
| 76 | #define PROG crl2pkcs7_main |
| 77 | |
| 78 | /* -inform arg - input format - default PEM (DER or PEM) |
| 79 | * -outform arg - output format - default PEM |
| 80 | * -in arg - input file - default stdin |
| 81 | * -out arg - output file - default stdout |
| 82 | */ |
| 83 | |
| 84 | int MAIN(int, char **); |
| 85 | |
| 86 | int MAIN(int argc, char **argv) |
| 87 | { |
| 88 | int i,badops=0; |
| 89 | BIO *in=NULL,*out=NULL; |
| 90 | int informat,outformat; |
| 91 | char *infile,*outfile,*prog,*certfile; |
| 92 | PKCS7 *p7 = NULL; |
| 93 | PKCS7_SIGNED *p7s = NULL; |
| 94 | X509_CRL *crl=NULL; |
| 95 | STACK_OF(OPENSSL_STRING) *certflst=NULL; |
| 96 | STACK_OF(X509_CRL) *crl_stack=NULL; |
| 97 | STACK_OF(X509) *cert_stack=NULL; |
| 98 | int ret=1,nocrl=0; |
| 99 | |
| 100 | apps_startup(); |
| 101 | |
| 102 | if (bio_err == NULL) |
| 103 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
| 104 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
| 105 | |
| 106 | infile=NULL; |
| 107 | outfile=NULL; |
| 108 | informat=FORMAT_PEM; |
| 109 | outformat=FORMAT_PEM; |
| 110 | |
| 111 | prog=argv[0]; |
| 112 | argc--; |
| 113 | argv++; |
| 114 | while (argc >= 1) |
| 115 | { |
| 116 | if (strcmp(*argv,"-inform") == 0) |
| 117 | { |
| 118 | if (--argc < 1) goto bad; |
| 119 | informat=str2fmt(*(++argv)); |
| 120 | } |
| 121 | else if (strcmp(*argv,"-outform") == 0) |
| 122 | { |
| 123 | if (--argc < 1) goto bad; |
| 124 | outformat=str2fmt(*(++argv)); |
| 125 | } |
| 126 | else if (strcmp(*argv,"-in") == 0) |
| 127 | { |
| 128 | if (--argc < 1) goto bad; |
| 129 | infile= *(++argv); |
| 130 | } |
| 131 | else if (strcmp(*argv,"-nocrl") == 0) |
| 132 | { |
| 133 | nocrl=1; |
| 134 | } |
| 135 | else if (strcmp(*argv,"-out") == 0) |
| 136 | { |
| 137 | if (--argc < 1) goto bad; |
| 138 | outfile= *(++argv); |
| 139 | } |
| 140 | else if (strcmp(*argv,"-certfile") == 0) |
| 141 | { |
| 142 | if (--argc < 1) goto bad; |
| 143 | if(!certflst) certflst = sk_OPENSSL_STRING_new_null(); |
| 144 | sk_OPENSSL_STRING_push(certflst,*(++argv)); |
| 145 | } |
| 146 | else |
| 147 | { |
| 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 | { |
| 158 | bad: |
| 159 | BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); |
| 160 | BIO_printf(bio_err,"where options are\n"); |
| 161 | BIO_printf(bio_err," -inform arg input format - DER or PEM\n"); |
| 162 | BIO_printf(bio_err," -outform arg output format - DER or PEM\n"); |
| 163 | BIO_printf(bio_err," -in arg input file\n"); |
| 164 | BIO_printf(bio_err," -out arg output file\n"); |
| 165 | BIO_printf(bio_err," -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," -nocrl no crl to load, just certs from '-certfile'\n"); |
| 168 | ret = 1; |
| 169 | goto end; |
| 170 | } |
| 171 | |
| 172 | ERR_load_crypto_strings(); |
| 173 | |
| 174 | in=BIO_new(BIO_s_file()); |
| 175 | out=BIO_new(BIO_s_file()); |
| 176 | if ((in == NULL) || (out == NULL)) |
| 177 | { |
| 178 | ERR_print_errors(bio_err); |
| 179 | goto end; |
| 180 | } |
| 181 | |
| 182 | if (!nocrl) |
| 183 | { |
| 184 | if (infile == NULL) |
| 185 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
| 186 | else |
| 187 | { |
| 188 | if (BIO_read_filename(in,infile) <= 0) |
| 189 | { |
| 190 | perror(infile); |
| 191 | goto end; |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | if (informat == FORMAT_ASN1) |
| 196 | crl=d2i_X509_CRL_bio(in,NULL); |
| 197 | else if (informat == FORMAT_PEM) |
| 198 | crl=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL); |
| 199 | else { |
| 200 | BIO_printf(bio_err,"bad input format specified for input crl\n"); |
| 201 | goto end; |
| 202 | } |
| 203 | if (crl == NULL) |
| 204 | { |
| 205 | BIO_printf(bio_err,"unable to load CRL\n"); |
| 206 | ERR_print_errors(bio_err); |
| 207 | goto end; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | if ((p7=PKCS7_new()) == NULL) goto end; |
| 212 | if ((p7s=PKCS7_SIGNED_new()) == NULL) goto end; |
| 213 | p7->type=OBJ_nid2obj(NID_pkcs7_signed); |
| 214 | p7->d.sign=p7s; |
| 215 | p7s->contents->type=OBJ_nid2obj(NID_pkcs7_data); |
| 216 | |
| 217 | if (!ASN1_INTEGER_set(p7s->version,1)) goto end; |
| 218 | if ((crl_stack=sk_X509_CRL_new_null()) == NULL) goto end; |
| 219 | p7s->crl=crl_stack; |
| 220 | if (crl != NULL) |
| 221 | { |
| 222 | sk_X509_CRL_push(crl_stack,crl); |
| 223 | crl=NULL; /* now part of p7 for OPENSSL_freeing */ |
| 224 | } |
| 225 | |
| 226 | if ((cert_stack=sk_X509_new_null()) == NULL) goto end; |
| 227 | p7s->cert=cert_stack; |
| 228 | |
| 229 | if(certflst) for(i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) { |
| 230 | certfile = sk_OPENSSL_STRING_value(certflst, i); |
| 231 | if (add_certs_from_file(cert_stack,certfile) < 0) |
| 232 | { |
| 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 | { |
| 243 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
| 244 | #ifdef OPENSSL_SYS_VMS |
| 245 | { |
| 246 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 247 | out = BIO_push(tmpbio, out); |
| 248 | } |
| 249 | #endif |
| 250 | } |
| 251 | else |
| 252 | { |
| 253 | if (BIO_write_filename(out,outfile) <= 0) |
| 254 | { |
| 255 | perror(outfile); |
| 256 | goto end; |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | if (outformat == FORMAT_ASN1) |
| 261 | i=i2d_PKCS7_bio(out,p7); |
| 262 | else if (outformat == FORMAT_PEM) |
| 263 | i=PEM_write_bio_PKCS7(out,p7); |
| 264 | else { |
| 265 | BIO_printf(bio_err,"bad output format specified for outfile\n"); |
| 266 | goto end; |
| 267 | } |
| 268 | if (!i) |
| 269 | { |
| 270 | BIO_printf(bio_err,"unable to write pkcs7 object\n"); |
| 271 | ERR_print_errors(bio_err); |
| 272 | goto end; |
| 273 | } |
| 274 | ret=0; |
| 275 | end: |
| 276 | if (in != NULL) BIO_free(in); |
| 277 | if (out != NULL) BIO_free_all(out); |
| 278 | if (p7 != NULL) PKCS7_free(p7); |
| 279 | if (crl != NULL) X509_CRL_free(crl); |
| 280 | |
| 281 | apps_shutdown(); |
| 282 | OPENSSL_EXIT(ret); |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | *---------------------------------------------------------------------- |
| 287 | * int add_certs_from_file |
| 288 | * |
| 289 | * Read a list of certificates to be checked from a file. |
| 290 | * |
| 291 | * Results: |
| 292 | * number of certs added if successful, -1 if not. |
| 293 | *---------------------------------------------------------------------- |
| 294 | */ |
| 295 | static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile) |
| 296 | { |
| 297 | BIO *in=NULL; |
| 298 | int count=0; |
| 299 | int ret= -1; |
| 300 | STACK_OF(X509_INFO) *sk=NULL; |
| 301 | X509_INFO *xi; |
| 302 | |
| 303 | in=BIO_new(BIO_s_file()); |
| 304 | if ((in == NULL) || (BIO_read_filename(in,certfile) <= 0)) |
| 305 | { |
| 306 | BIO_printf(bio_err,"error opening the file, %s\n",certfile); |
| 307 | goto end; |
| 308 | } |
| 309 | |
| 310 | /* This loads from a file, a stack of x509/crl/pkey sets */ |
| 311 | sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL); |
| 312 | if (sk == NULL) { |
| 313 | BIO_printf(bio_err,"error reading the file, %s\n",certfile); |
| 314 | goto end; |
| 315 | } |
| 316 | |
| 317 | /* scan over it and pull out the CRL's */ |
| 318 | while (sk_X509_INFO_num(sk)) |
| 319 | { |
| 320 | xi=sk_X509_INFO_shift(sk); |
| 321 | if (xi->x509 != NULL) |
| 322 | { |
| 323 | sk_X509_push(stack,xi->x509); |
| 324 | xi->x509=NULL; |
| 325 | count++; |
| 326 | } |
| 327 | X509_INFO_free(xi); |
| 328 | } |
| 329 | |
| 330 | ret=count; |
| 331 | end: |
| 332 | /* never need to OPENSSL_free x */ |
| 333 | if (in != NULL) BIO_free(in); |
| 334 | if (sk != NULL) sk_X509_INFO_free(sk); |
| 335 | return(ret); |
| 336 | } |
| 337 | |