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File: [local] / src / usr.bin / openssl / crl.c (download)

Revision 1.1, Tue Aug 26 17:47:24 2014 UTC (9 years, 9 months ago) by jsing
Branch: MAIN

Move openssl(1) from /usr/sbin/openssl to /usr/bin/openssl, since it is not
a system/superuser binary. At the same time, move the source code from its
current lib/libssl/src/apps location to a more appropriate home under
usr.bin/openssl.

ok deraadt@ miod@

/* $OpenBSD: crl.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */
/* 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/pem.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

#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",
#ifndef OPENSSL_NO_MD5
	" -hash_old       - print old-style (MD5) hash value\n",
#endif
	" -fingerprint    - print the crl fingerprint\n",
	" -issuer         - print issuer DN\n",
	" -lastupdate     - lastUpdate field\n",
	" -nextupdate     - nextUpdate field\n",
	" -crlnumber      - print CRL number\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 crl_main(int, char **);

int
crl_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;
#ifndef OPENSSL_NO_MD5
	int hash_old = 0;
#endif
	int fingerprint = 0, crlnumber = 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();

	if (bio_out == NULL)
		if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
			BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
		}
	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;
#ifndef OPENSSL_NO_MD5
		else if (strcmp(*argv, "-hash_old") == 0)
			hash_old = ++num;
#endif
		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 (strcmp(*argv, "-crlnumber") == 0)
			crlnumber = ++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 (crlnumber == i) {
				ASN1_INTEGER *crlnum;
				crlnum = X509_CRL_get_ext_d2i(x,
				    NID_crl_number, NULL, NULL);
				BIO_printf(bio_out, "crlNumber=");
				if (crlnum) {
					i2a_ASN1_INTEGER(bio_out, crlnum);
					ASN1_INTEGER_free(crlnum);
				} else
					BIO_puts(bio_out, "<NONE>");
				BIO_printf(bio_out, "\n");
			}
			if (hash == i) {
				BIO_printf(bio_out, "%08lx\n",
				    X509_NAME_hash(X509_CRL_get_issuer(x)));
			}
#ifndef OPENSSL_NO_MD5
			if (hash_old == i) {
				BIO_printf(bio_out, "%08lx\n",
				    X509_NAME_hash_old(X509_CRL_get_issuer(x)));
			}
#endif
			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);
	} 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);
	}

	return (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);
}