crl.c

Go to the documentation of this file.

/* apps/crl.c */
/* 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.]
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/pem.h>

#undef PROG
#define PROG    crl_main

#undef POSTFIX
#define POSTFIX ".rvk"

static const char *crl_usage[]={
"usage: crl args\n",
"\n",
" -inform arg     - input format - default PEM (DER or PEM)\n",
" -outform arg    - output format - default PEM\n",
" -text           - print out a text format version\n",
" -in arg         - input file - default stdin\n",
" -out arg        - output file - default stdout\n",
" -hash           - print hash value\n",
" -fingerprint    - print the crl fingerprint\n",
" -issuer         - print issuer DN\n",
" -lastupdate     - lastUpdate field\n",
" -nextupdate     - nextUpdate field\n",
" -noout          - no CRL output\n",
" -CAfile  name   - verify CRL using certificates in file \"name\"\n",
" -CApath  dir    - verify CRL using certificates in \"dir\"\n",
" -nameopt arg    - various certificate name options\n",
NULL
};

static X509_CRL *load_crl(char *file, int format);
static BIO *bio_out=NULL;

int MAIN(int, char **);

int MAIN(int argc, char **argv)
        {
        unsigned long nmflag = 0;
        X509_CRL *x=NULL;
        char *CAfile = NULL, *CApath = NULL;
        int ret=1,i,num,badops=0;
        BIO *out=NULL;
        int informat,outformat;
        char *infile=NULL,*outfile=NULL;
        int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
        int fingerprint = 0;
        const char **pp;
        X509_STORE *store = NULL;
        X509_STORE_CTX ctx;
        X509_LOOKUP *lookup = NULL;
        X509_OBJECT xobj;
        EVP_PKEY *pkey;
        int do_ver = 0;
        const EVP_MD *md_alg,*digest=EVP_sha1();

        apps_startup();

        if (bio_err == NULL)
                if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                        BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

        if (!load_config(bio_err, NULL))
                goto end;

        if (bio_out == NULL)
                if ((bio_out=BIO_new(BIO_s_file())) != NULL)
                        {
                        BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
                        {
                        BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                        bio_out = BIO_push(tmpbio, bio_out);
                        }
#endif
                        }

        informat=FORMAT_PEM;
        outformat=FORMAT_PEM;

        argc--;
        argv++;
        num=0;
        while (argc >= 1)
                {
#ifdef undef
                if      (strcmp(*argv,"-p") == 0)
                        {
                        if (--argc < 1) goto bad;
                        if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
                        }
#endif
                if      (strcmp(*argv,"-inform") == 0)
                        {
                        if (--argc < 1) goto bad;
                        informat=str2fmt(*(++argv));
                        }
                else if (strcmp(*argv,"-outform") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outformat=str2fmt(*(++argv));
                        }
                else if (strcmp(*argv,"-in") == 0)
                        {
                        if (--argc < 1) goto bad;
                        infile= *(++argv);
                        }
                else if (strcmp(*argv,"-out") == 0)
                        {
                        if (--argc < 1) goto bad;
                        outfile= *(++argv);
                        }
                else if (strcmp(*argv,"-CApath") == 0)
                        {
                        if (--argc < 1) goto bad;
                        CApath = *(++argv);
                        do_ver = 1;
                        }
                else if (strcmp(*argv,"-CAfile") == 0)
                        {
                        if (--argc < 1) goto bad;
                        CAfile = *(++argv);
                        do_ver = 1;
                        }
                else if (strcmp(*argv,"-verify") == 0)
                        do_ver = 1;
                else if (strcmp(*argv,"-text") == 0)
                        text = 1;
                else if (strcmp(*argv,"-hash") == 0)
                        hash= ++num;
                else if (strcmp(*argv,"-nameopt") == 0)
                        {
                        if (--argc < 1) goto bad;
                        if (!set_name_ex(&nmflag, *(++argv))) goto bad;
                        }
                else if (strcmp(*argv,"-issuer") == 0)
                        issuer= ++num;
                else if (strcmp(*argv,"-lastupdate") == 0)
                        lastupdate= ++num;
                else if (strcmp(*argv,"-nextupdate") == 0)
                        nextupdate= ++num;
                else if (strcmp(*argv,"-noout") == 0)
                        noout= ++num;
                else if (strcmp(*argv,"-fingerprint") == 0)
                        fingerprint= ++num;
                else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
                        {
                        /* ok */
                        digest=md_alg;
                        }
                else
                        {
                        BIO_printf(bio_err,"unknown option %s\n",*argv);
                        badops=1;
                        break;
                        }
                argc--;
                argv++;
                }

        if (badops)
                {
bad:
                for (pp=crl_usage; (*pp != NULL); pp++)
                        BIO_printf(bio_err,"%s",*pp);
                goto end;
                }

        ERR_load_crypto_strings();
        x=load_crl(infile,informat);
        if (x == NULL) { goto end; }

        if(do_ver) {
                store = X509_STORE_new();
                lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
                if (lookup == NULL) goto end;
                if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
                        X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
                        
                lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
                if (lookup == NULL) goto end;
                if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
                        X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
                ERR_clear_error();

                if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
                        BIO_printf(bio_err,
                                "Error initialising X509 store\n");
                        goto end;
                }

                i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
                                        X509_CRL_get_issuer(x), &xobj);
                if(i <= 0) {
                        BIO_printf(bio_err,
                                "Error getting CRL issuer certificate\n");
                        goto end;
                }
                pkey = X509_get_pubkey(xobj.data.x509);
                X509_OBJECT_free_contents(&xobj);
                if(!pkey) {
                        BIO_printf(bio_err,
                                "Error getting CRL issuer public key\n");
                        goto end;
                }
                i = X509_CRL_verify(x, pkey);
                EVP_PKEY_free(pkey);
                if(i < 0) goto end;
                if(i == 0) BIO_printf(bio_err, "verify failure\n");
                else BIO_printf(bio_err, "verify OK\n");
        }

        if (num)
                {
                for (i=1; i<=num; i++)
                        {
                        if (issuer == i)
                                {
                                print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
                                }

                        if (hash == i)
                                {
                                BIO_printf(bio_out,"%08lx\n",
                                        X509_NAME_hash(X509_CRL_get_issuer(x)));
                                }
                        if (lastupdate == i)
                                {
                                BIO_printf(bio_out,"lastUpdate=");
                                ASN1_TIME_print(bio_out,
                                                X509_CRL_get_lastUpdate(x));
                                BIO_printf(bio_out,"\n");
                                }
                        if (nextupdate == i)
                                {
                                BIO_printf(bio_out,"nextUpdate=");
                                if (X509_CRL_get_nextUpdate(x)) 
                                        ASN1_TIME_print(bio_out,
                                                X509_CRL_get_nextUpdate(x));
                                else
                                        BIO_printf(bio_out,"NONE");
                                BIO_printf(bio_out,"\n");
                                }
                        if (fingerprint == i)
                                {
                                int j;
                                unsigned int n;
                                unsigned char md[EVP_MAX_MD_SIZE];

                                if (!X509_CRL_digest(x,digest,md,&n))
                                        {
                                        BIO_printf(bio_err,"out of memory\n");
                                        goto end;
                                        }
                                BIO_printf(bio_out,"%s Fingerprint=",
                                                OBJ_nid2sn(EVP_MD_type(digest)));
                                for (j=0; j<(int)n; j++)
                                        {
                                        BIO_printf(bio_out,"%02X%c",md[j],
                                                (j+1 == (int)n)
                                                ?'\n':':');
                                        }
                                }
                        }
                }

        out=BIO_new(BIO_s_file());
        if (out == NULL)
                {
                ERR_print_errors(bio_err);
                goto end;
                }

        if (outfile == NULL)
                {
                BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
                {
                BIO *tmpbio = BIO_new(BIO_f_linebuffer());
                out = BIO_push(tmpbio, out);
                }
#endif
                }
        else
                {
                if (BIO_write_filename(out,outfile) <= 0)
                        {
                        perror(outfile);
                        goto end;
                        }
                }

        if (text) X509_CRL_print(out, x);

        if (noout) 
                {
                ret = 0;
                goto end;
                }

        if      (outformat == FORMAT_ASN1)
                i=(int)i2d_X509_CRL_bio(out,x);
        else if (outformat == FORMAT_PEM)
                i=PEM_write_bio_X509_CRL(out,x);
        else    
                {
                BIO_printf(bio_err,"bad output format specified for outfile\n");
                goto end;
                }
        if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
        ret=0;
end:
        BIO_free_all(out);
        BIO_free_all(bio_out);
        bio_out=NULL;
        X509_CRL_free(x);
        if(store) {
                X509_STORE_CTX_cleanup(&ctx);
                X509_STORE_free(store);
        }
        apps_shutdown();
        OPENSSL_EXIT(ret);
        }

static X509_CRL *load_crl(char *infile, int format)
        {
        X509_CRL *x=NULL;
        BIO *in=NULL;

        in=BIO_new(BIO_s_file());
        if (in == NULL)
                {
                ERR_print_errors(bio_err);
                goto end;
                }

        if (infile == NULL)
                BIO_set_fp(in,stdin,BIO_NOCLOSE);
        else
                {
                if (BIO_read_filename(in,infile) <= 0)
                        {
                        perror(infile);
                        goto end;
                        }
                }
        if      (format == FORMAT_ASN1)
                x=d2i_X509_CRL_bio(in,NULL);
        else if (format == FORMAT_PEM)
                x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
        else    {
                BIO_printf(bio_err,"bad input format specified for input crl\n");
                goto end;
                }
        if (x == NULL)
                {
                BIO_printf(bio_err,"unable to load CRL\n");
                ERR_print_errors(bio_err);
                goto end;
                }
        
end:
        BIO_free(in);
        return(x);
        }

---

© sourcejam.com 2005-2008