sl@0: /* apps/crl.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <stdlib.h>
sl@0: #include <string.h>
sl@0: #include "apps.h"
sl@0: #include <openssl/bio.h>
sl@0: #include <openssl/err.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/x509v3.h>
sl@0: #include <openssl/pem.h>
sl@0: 
sl@0: #undef PROG
sl@0: #define PROG	crl_main
sl@0: 
sl@0: #undef POSTFIX
sl@0: #define	POSTFIX	".rvk"
sl@0: 
sl@0: static const char *crl_usage[]={
sl@0: "usage: crl args\n",
sl@0: "\n",
sl@0: " -inform arg     - input format - default PEM (DER or PEM)\n",
sl@0: " -outform arg    - output format - default PEM\n",
sl@0: " -text           - print out a text format version\n",
sl@0: " -in arg         - input file - default stdin\n",
sl@0: " -out arg        - output file - default stdout\n",
sl@0: " -hash           - print hash value\n",
sl@0: " -fingerprint    - print the crl fingerprint\n",
sl@0: " -issuer         - print issuer DN\n",
sl@0: " -lastupdate     - lastUpdate field\n",
sl@0: " -nextupdate     - nextUpdate field\n",
sl@0: " -noout          - no CRL output\n",
sl@0: " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
sl@0: " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
sl@0: " -nameopt arg    - various certificate name options\n",
sl@0: NULL
sl@0: };
sl@0: 
sl@0: static X509_CRL *load_crl(char *file, int format);
sl@0: static BIO *bio_out=NULL;
sl@0: 
sl@0: 
sl@0: int MAIN(int, char **);
sl@0: 
sl@0: int MAIN(int argc, char **argv)
sl@0: 	{
sl@0: 	unsigned long nmflag = 0;
sl@0: 	X509_CRL *x=NULL;
sl@0: 	char *CAfile = NULL, *CApath = NULL;
sl@0: 	int ret=1,i,num,badops=0;
sl@0: 	BIO *out=NULL;
sl@0: 	int informat,outformat;
sl@0: 	char *infile=NULL,*outfile=NULL;
sl@0: 	int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
sl@0: 	int fingerprint = 0;
sl@0: 	const char **pp;
sl@0: 	X509_STORE *store = NULL;
sl@0: 	X509_STORE_CTX ctx;
sl@0: 	X509_LOOKUP *lookup = NULL;
sl@0: 	X509_OBJECT xobj;
sl@0: 	EVP_PKEY *pkey;
sl@0: 	int do_ver = 0;
sl@0: 	const EVP_MD *md_alg,*digest=EVP_sha1();
sl@0: 
sl@0: 	apps_startup();
sl@0: 
sl@0: 	if (bio_err == NULL)
sl@0: 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
sl@0: 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
sl@0: 	if (!load_config(bio_err, NULL))
sl@0: 		goto end;
sl@0: 
sl@0: 	if (bio_out == NULL)
sl@0: 
sl@0: 		if ((bio_out=BIO_new(BIO_s_file())) != NULL)
sl@0: 			{
sl@0: 			BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
sl@0: 	
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 			{
sl@0: 			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
sl@0: 			bio_out = BIO_push(tmpbio, bio_out);
sl@0: 			}
sl@0: #endif
sl@0: 			}
sl@0: 
sl@0: 	informat=FORMAT_PEM;
sl@0: 	outformat=FORMAT_PEM;
sl@0: 
sl@0: 	argc--;
sl@0: 	argv++;
sl@0: 	num=0;
sl@0: 	while (argc >= 1)
sl@0: 		{
sl@0: #ifdef undef
sl@0: 		if	(strcmp(*argv,"-p") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
sl@0: 			}
sl@0: #endif
sl@0: 		if 	(strcmp(*argv,"-inform") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			informat=str2fmt(*(++argv));
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-outform") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			outformat=str2fmt(*(++argv));
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-in") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			infile= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-out") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			outfile= *(++argv);
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-CApath") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			CApath = *(++argv);
sl@0: 			do_ver = 1;
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-CAfile") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			CAfile = *(++argv);
sl@0: 			do_ver = 1;
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-verify") == 0)
sl@0: 			do_ver = 1;
sl@0: 		else if (strcmp(*argv,"-text") == 0)
sl@0: 			text = 1;
sl@0: 		else if (strcmp(*argv,"-hash") == 0)
sl@0: 			hash= ++num;
sl@0: 		else if (strcmp(*argv,"-nameopt") == 0)
sl@0: 			{
sl@0: 			if (--argc < 1) goto bad;
sl@0: 			if (!set_name_ex(&nmflag, *(++argv))) goto bad;
sl@0: 			}
sl@0: 		else if (strcmp(*argv,"-issuer") == 0)
sl@0: 			issuer= ++num;
sl@0: 		else if (strcmp(*argv,"-lastupdate") == 0)
sl@0: 			lastupdate= ++num;
sl@0: 		else if (strcmp(*argv,"-nextupdate") == 0)
sl@0: 			nextupdate= ++num;
sl@0: 		else if (strcmp(*argv,"-noout") == 0)
sl@0: 			noout= ++num;
sl@0: 		else if (strcmp(*argv,"-fingerprint") == 0)
sl@0: 			fingerprint= ++num;
sl@0: 		else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
sl@0: 			{
sl@0: 			/* ok */
sl@0: 			digest=md_alg;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			BIO_printf(bio_err,"unknown option %s\n",*argv);
sl@0: 			badops=1;
sl@0: 			break;
sl@0: 			}
sl@0: 		argc--;
sl@0: 		argv++;
sl@0: 		}
sl@0: 
sl@0: 	if (badops)
sl@0: 		{
sl@0: bad:
sl@0: 		for (pp=crl_usage; (*pp != NULL); pp++)
sl@0: 			BIO_printf(bio_err,"%s",*pp);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	ERR_load_crypto_strings();
sl@0: 	x=load_crl(infile,informat);
sl@0: 	if (x == NULL) { goto end; }
sl@0: 
sl@0: 	if(do_ver) {
sl@0: 		store = X509_STORE_new();
sl@0: 		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
sl@0: 		if (lookup == NULL) goto end;
sl@0: 		if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
sl@0: 			X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
sl@0: 			
sl@0: 		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
sl@0: 		if (lookup == NULL) goto end;
sl@0: 		if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
sl@0: 			X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
sl@0: 		ERR_clear_error();
sl@0: 
sl@0: 		if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
sl@0: 			BIO_printf(bio_err,
sl@0: 				"Error initialising X509 store\n");
sl@0: 			goto end;
sl@0: 		}
sl@0: 
sl@0: 		i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
sl@0: 					X509_CRL_get_issuer(x), &xobj);
sl@0: 		if(i <= 0) {
sl@0: 			BIO_printf(bio_err,
sl@0: 				"Error getting CRL issuer certificate\n");
sl@0: 			goto end;
sl@0: 		}
sl@0: 		pkey = X509_get_pubkey(xobj.data.x509);
sl@0: 		X509_OBJECT_free_contents(&xobj);
sl@0: 		if(!pkey) {
sl@0: 			BIO_printf(bio_err,
sl@0: 				"Error getting CRL issuer public key\n");
sl@0: 			goto end;
sl@0: 		}
sl@0: 		i = X509_CRL_verify(x, pkey);
sl@0: 		EVP_PKEY_free(pkey);
sl@0: 		if(i < 0) goto end;
sl@0: 		if(i == 0) BIO_printf(bio_err, "verify failure\n");
sl@0: 		else BIO_printf(bio_err, "verify OK\n");
sl@0: 	}
sl@0: 
sl@0: 	if (num)
sl@0: 		{
sl@0: 		for (i=1; i<=num; i++)
sl@0: 			{
sl@0: 			if (issuer == i)
sl@0: 				{
sl@0: 				print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
sl@0: 				}
sl@0: 
sl@0: 			if (hash == i)
sl@0: 				{
sl@0: 				BIO_printf(bio_out,"%08lx\n",
sl@0: 					X509_NAME_hash(X509_CRL_get_issuer(x)));
sl@0: 				}
sl@0: 			if (lastupdate == i)
sl@0: 				{
sl@0: 				BIO_printf(bio_out,"lastUpdate=");
sl@0: 				ASN1_TIME_print(bio_out,
sl@0: 						X509_CRL_get_lastUpdate(x));
sl@0: 				BIO_printf(bio_out,"\n");
sl@0: 				}
sl@0: 			if (nextupdate == i)
sl@0: 				{
sl@0: 				BIO_printf(bio_out,"nextUpdate=");
sl@0: 				if (X509_CRL_get_nextUpdate(x)) 
sl@0: 					ASN1_TIME_print(bio_out,
sl@0: 						X509_CRL_get_nextUpdate(x));
sl@0: 				else
sl@0: 					BIO_printf(bio_out,"NONE");
sl@0: 				BIO_printf(bio_out,"\n");
sl@0: 				}
sl@0: 			if (fingerprint == i)
sl@0: 				{
sl@0: 				int j;
sl@0: 				unsigned int n;
sl@0: 				unsigned char md[EVP_MAX_MD_SIZE];
sl@0: 
sl@0: 				if (!X509_CRL_digest(x,digest,md,&n))
sl@0: 					{
sl@0: 					BIO_printf(bio_err,"out of memory\n");
sl@0: 					goto end;
sl@0: 					}
sl@0: 				BIO_printf(bio_out,"%s Fingerprint=",
sl@0: 						OBJ_nid2sn(EVP_MD_type(digest)));
sl@0: 				for (j=0; j<(int)n; j++)
sl@0: 					{
sl@0: 					BIO_printf(bio_out,"%02X%c",md[j],
sl@0: 						(j+1 == (int)n)
sl@0: 						?'\n':':');
sl@0: 					}
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	out=BIO_new(BIO_s_file());
sl@0: 	if (out == NULL)
sl@0: 		{
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if (outfile == NULL)
sl@0: 		{
sl@0: 		BIO_set_fp(out,stdout,BIO_NOCLOSE);
sl@0: #ifdef OPENSSL_SYS_VMS
sl@0: 		{
sl@0: 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
sl@0: 		out = BIO_push(tmpbio, out);
sl@0: 		}
sl@0: #endif
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		if (BIO_write_filename(out,outfile) <= 0)
sl@0: 			{
sl@0: 			perror(outfile);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if (text) X509_CRL_print(out, x);
sl@0: 
sl@0: 	if (noout) 
sl@0: 		{
sl@0: 		ret = 0;
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if 	(outformat == FORMAT_ASN1)
sl@0: 		i=(int)i2d_X509_CRL_bio(out,x);
sl@0: 	else if (outformat == FORMAT_PEM)
sl@0: 		i=PEM_write_bio_X509_CRL(out,x);
sl@0: 	else	
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"bad output format specified for outfile\n");
sl@0: 		goto end;
sl@0: 		}
sl@0: 	if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
sl@0: 	ret=0;
sl@0: end:
sl@0: 	BIO_free_all(out);
sl@0: 	BIO_free_all(bio_out);
sl@0: 	bio_out=NULL;
sl@0: 	X509_CRL_free(x);
sl@0: 	if(store) {
sl@0: 		X509_STORE_CTX_cleanup(&ctx);
sl@0: 		X509_STORE_free(store);
sl@0: 	}
sl@0: 	apps_shutdown();
sl@0: 	OPENSSL_EXIT(ret);
sl@0: 	}
sl@0: 
sl@0: static X509_CRL *load_crl(char *infile, int format)
sl@0: 	{
sl@0: 	X509_CRL *x=NULL;
sl@0: 	BIO *in=NULL;
sl@0: 
sl@0: 	in=BIO_new(BIO_s_file());
sl@0: 	if (in == NULL)
sl@0: 		{
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if (infile == NULL)
sl@0: 		BIO_set_fp(in,stdin,BIO_NOCLOSE);
sl@0:   else
sl@0: 		{
sl@0: 		if (BIO_read_filename(in,infile) <= 0)
sl@0: 			{
sl@0: 			perror(infile);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		}
sl@0: 	if 	(format == FORMAT_ASN1)
sl@0: 		x=d2i_X509_CRL_bio(in,NULL);
sl@0: 	else if (format == FORMAT_PEM)
sl@0: 		x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
sl@0: 	else	{
sl@0: 		BIO_printf(bio_err,"bad input format specified for input crl\n");
sl@0: 		goto end;
sl@0: 		}
sl@0: 	if (x == NULL)
sl@0: 		{
sl@0: 		BIO_printf(bio_err,"unable to load CRL\n");
sl@0: 		ERR_print_errors(bio_err);
sl@0: 		goto end;
sl@0: 		}
sl@0: 	
sl@0: end:
sl@0: 	BIO_free(in);
sl@0: 	return(x);
sl@0: 	}
sl@0: