/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* * This was written by Gordon Chaffee and * donated 'to the cause' along with lots and lots of other fixes to the * library. */ #include #include #include #include "apps.h" #include #include #include #include #include #include static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile); typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_NOCRL, OPT_CERTFILE } OPTION_CHOICE; OPTIONS crl2pkcs7_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, {"in", OPT_IN, '<', "Input file"}, {"out", OPT_OUT, '>', "Output file"}, {"nocrl", OPT_NOCRL, '-', "No crl to load, just certs from '-certfile'"}, {"certfile", OPT_CERTFILE, '<', "File of chain of certs to a trusted CA; can be repeated"}, {NULL} }; int crl2pkcs7_main(int argc, char **argv) { BIO *in = NULL, *out = NULL; PKCS7 *p7 = NULL; PKCS7_SIGNED *p7s = NULL; STACK_OF(OPENSSL_STRING) *certflst = NULL; STACK_OF(X509) *cert_stack = NULL; STACK_OF(X509_CRL) *crl_stack = NULL; X509_CRL *crl = NULL; char *infile = NULL, *outfile = NULL, *prog, *certfile; int i = 0, informat = FORMAT_PEM, outformat = FORMAT_PEM, ret = 1, nocrl = 0; OPTION_CHOICE o; prog = opt_init(argc, argv, crl2pkcs7_options); while ((o = opt_next()) != OPT_EOF) { switch (o) { case OPT_EOF: case OPT_ERR: opthelp: BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); goto end; case OPT_HELP: opt_help(crl2pkcs7_options); ret = 0; goto end; case OPT_INFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) goto opthelp; break; case OPT_OUTFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) goto opthelp; break; case OPT_IN: infile = opt_arg(); break; case OPT_OUT: outfile = opt_arg(); break; case OPT_NOCRL: nocrl = 1; break; case OPT_CERTFILE: if ((certflst == NULL) && (certflst = sk_OPENSSL_STRING_new_null()) == NULL) goto end; if (!sk_OPENSSL_STRING_push(certflst, opt_arg())) { sk_OPENSSL_STRING_free(certflst); goto end; } break; } } argc = opt_num_rest(); if (argc != 0) goto opthelp; if (!nocrl) { in = bio_open_default(infile, 'r', informat); if (in == NULL) goto end; if (informat == FORMAT_ASN1) crl = d2i_X509_CRL_bio(in, NULL); else if (informat == FORMAT_PEM) crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); if (crl == NULL) { BIO_printf(bio_err, "unable to load CRL\n"); ERR_print_errors(bio_err); goto end; } } if ((p7 = PKCS7_new()) == NULL) goto end; if ((p7s = PKCS7_SIGNED_new()) == NULL) goto end; p7->type = OBJ_nid2obj(NID_pkcs7_signed); p7->d.sign = p7s; p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data); if (!ASN1_INTEGER_set(p7s->version, 1)) goto end; if ((crl_stack = sk_X509_CRL_new_null()) == NULL) goto end; p7s->crl = crl_stack; if (crl != NULL) { sk_X509_CRL_push(crl_stack, crl); crl = NULL; /* now part of p7 for OPENSSL_freeing */ } if ((cert_stack = sk_X509_new_null()) == NULL) goto end; p7s->cert = cert_stack; if (certflst) for (i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) { certfile = sk_OPENSSL_STRING_value(certflst, i); if (add_certs_from_file(cert_stack, certfile) < 0) { BIO_printf(bio_err, "error loading certificates\n"); ERR_print_errors(bio_err); goto end; } } sk_OPENSSL_STRING_free(certflst); out = bio_open_default(outfile, 'w', outformat); if (out == NULL) goto end; if (outformat == FORMAT_ASN1) i = i2d_PKCS7_bio(out, p7); else if (outformat == FORMAT_PEM) i = PEM_write_bio_PKCS7(out, p7); if (!i) { BIO_printf(bio_err, "unable to write pkcs7 object\n"); ERR_print_errors(bio_err); goto end; } ret = 0; end: BIO_free(in); BIO_free_all(out); PKCS7_free(p7); X509_CRL_free(crl); return (ret); } /*- *---------------------------------------------------------------------- * int add_certs_from_file * * Read a list of certificates to be checked from a file. * * Results: * number of certs added if successful, -1 if not. *---------------------------------------------------------------------- */ static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile) { BIO *in = NULL; int count = 0; int ret = -1; STACK_OF(X509_INFO) *sk = NULL; X509_INFO *xi; in = BIO_new_file(certfile, "r"); if (in == NULL) { BIO_printf(bio_err, "error opening the file, %s\n", certfile); goto end; } /* This loads from a file, a stack of x509/crl/pkey sets */ sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); if (sk == NULL) { BIO_printf(bio_err, "error reading the file, %s\n", certfile); goto end; } /* scan over it and pull out the CRL's */ while (sk_X509_INFO_num(sk)) { xi = sk_X509_INFO_shift(sk); if (xi->x509 != NULL) { sk_X509_push(stack, xi->x509); xi->x509 = NULL; count++; } X509_INFO_free(xi); } ret = count; end: /* never need to OPENSSL_free x */ BIO_free(in); sk_X509_INFO_free(sk); return (ret); }