ca.c

本软件包将每个openssl的apps程序做成一个可直接运行调试的VC Console 类型应用程序

/* apps/ca.c */
/* Copyright (C) 1995-1998 Eric Young ([e-mail])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([e-mail]).
 * 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 ([e-mail]).
 * 
 * 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 ([e-mail])"
 *    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 ([e-mail])"
 * 
 * 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.]
 */

/* The PPKI stuff has been donated by Jeff Barber <[e-mail]> */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "apps.h"
#include <openssl/conf.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/txt_db.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/objects.h>
#include <openssl/pem.h>

#ifndef W_OK
#  ifdef VMS
#    if defined(__DECC)
#      include <unistd.h>
#    else
#      include <unixlib.h>
#    endif
#  elif !defined(VXWORKS)
#    include <sys/file.h>
#  endif
#endif

#ifndef W_OK
#  define F_OK 0
#  define X_OK 1
#  define W_OK 2
#  define R_OK 4
#endif

#undef PROG
#define PROG ca_main

#define BASE_SECTION	"ca"
#define CONFIG_FILE "openssl.cnf"

#define ENV_DEFAULT_CA		"default_ca"

#define ENV_DIR			"dir"
#define ENV_CERTS		"certs"
#define ENV_CRL_DIR		"crl_dir"
#define ENV_CA_DB		"CA_DB"
#define ENV_NEW_CERTS_DIR	"new_certs_dir"
#define ENV_CERTIFICATE 	"certificate"
#define ENV_SERIAL		"serial"
#define ENV_CRL			"crl"
#define ENV_PRIVATE_KEY		"private_key"
#define ENV_RANDFILE		"RANDFILE"
#define ENV_DEFAULT_DAYS 	"default_days"
#define ENV_DEFAULT_STARTDATE 	"default_startdate"
#define ENV_DEFAULT_ENDDATE 	"default_enddate"
#define ENV_DEFAULT_CRL_DAYS 	"default_crl_days"
#define ENV_DEFAULT_CRL_HOURS 	"default_crl_hours"
#define ENV_DEFAULT_MD		"default_md"
#define ENV_PRESERVE		"preserve"
#define ENV_POLICY      	"policy"
#define ENV_EXTENSIONS      	"x509_extensions"
#define ENV_CRLEXT      	"crl_extensions"
#define ENV_MSIE_HACK		"msie_hack"

#define ENV_DATABASE		"database"

#define DB_type         0
#define DB_exp_date     1
#define DB_rev_date     2
#define DB_serial       3       /* index - unique */
#define DB_file         4       
#define DB_name         5       /* index - unique for active */
#define DB_NUMBER       6

#define DB_TYPE_REV	'R'
#define DB_TYPE_EXP	'E'
#define DB_TYPE_VAL	'V'

static char *ca_usage[]={
"usage: ca args\n",
"\n",
" -verbose        - Talk alot while doing things\n",
" -config file    - A config file\n",
" -name arg       - The particular CA definition to use\n",
" -gencrl         - Generate a new CRL\n",
" -crldays days   - Days is when the next CRL is due\n",
" -crlhours hours - Hours is when the next CRL is due\n",
" -startdate YYMMDDHHMMSSZ  - certificate validity notBefore\n",
" -enddate YYMMDDHHMMSSZ    - certificate validity notAfter (overrides -days)\n",
" -days arg       - number of days to certify the certificate for\n",
" -md arg         - md to use, one of md2, md5, sha or sha1\n",
" -policy arg     - The CA 'policy' to support\n",
" -keyfile arg    - PEM private key file\n",
" -key arg        - key to decode the private key if it is encrypted\n",
" -cert file      - The CA certificate\n",
" -in file        - The input PEM encoded certificate request(s)\n",
" -out file       - Where to put the output file(s)\n",
" -outdir dir     - Where to put output certificates\n",
" -infiles ....   - The last argument, requests to process\n",
" -spkac file     - File contains DN and signed public key and challenge\n",
" -ss_cert file   - File contains a self signed cert to sign\n",
" -preserveDN     - Don't re-order the DN\n",
" -batch          - Don't ask questions\n",
" -msie_hack      - msie modifications to handle all those universal strings\n",
" -revoke file    - Revoke a certificate (given in file)\n",
" -extensions ..  - Extension section (override value in config file)\n",
" -crlexts ..     - CRL extension section (override value in config file)\n",
NULL
};

#ifdef EFENCE
extern int EF_PROTECT_FREE;
extern int EF_PROTECT_BELOW;
extern int EF_ALIGNMENT;
#endif

static void lookup_fail(char *name,char *tag);
static unsigned long index_serial_hash(char **a);
static int index_serial_cmp(char **a, char **b);
static unsigned long index_name_hash(char **a);
static int index_name_qual(char **a);
static int index_name_cmp(char **a,char **b);
static BIGNUM *load_serial(char *serialfile);
static int save_serial(char *serialfile, BIGNUM *serial);
static int certify(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
		   const EVP_MD *dgst,STACK_OF(CONF_VALUE) *policy,TXT_DB *db,
		   BIGNUM *serial, char *startdate,char *enddate, int days,
		   int batch, char *ext_sect, LHASH *conf,int verbose);
static int certify_cert(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
			const EVP_MD *dgst,STACK_OF(CONF_VALUE) *policy,
			TXT_DB *db, BIGNUM *serial,char *startdate,
			char *enddate, int days, int batch, char *ext_sect,
			LHASH *conf,int verbose);
static int certify_spkac(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509,
			 const EVP_MD *dgst,STACK_OF(CONF_VALUE) *policy,
			 TXT_DB *db, BIGNUM *serial,char *startdate,
			 char *enddate, int days, char *ext_sect,LHASH *conf,
				int verbose);
static int fix_data(int nid, int *type);
static void write_new_certificate(BIO *bp, X509 *x, int output_der, int notext);
static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst,
	STACK_OF(CONF_VALUE) *policy, TXT_DB *db, BIGNUM *serial,
	char *startdate, char *enddate, int days, int batch, int verbose,
	X509_REQ *req, char *ext_sect, LHASH *conf);
static int do_revoke(X509 *x509, TXT_DB *db);
static int check_time_format(char *str);
static LHASH *conf=NULL;
static char *section=NULL;

static int preserve=0;
static int msie_hack=0;

int MAIN(int, char **);

int MAIN(int argc, char **argv)
	{
	char *key=NULL,*passargin=NULL;
	int total=0;
	int total_done=0;
	int badops=0;
	int ret=1;
	int req=0;
	int verbose=0;
	int gencrl=0;
	int dorevoke=0;
	long crldays=0;
	long crlhours=0;
	long errorline= -1;
	char *configfile=NULL;
	char *md=NULL;
	char *policy=NULL;
	char *keyfile=NULL;
	char *certfile=NULL;
	char *infile=NULL;
	char *spkac_file=NULL;
	char *ss_cert_file=NULL;
	EVP_PKEY *pkey=NULL;
	int output_der = 0;
	char *outfile=NULL;
	char *outdir=NULL;
	char *serialfile=NULL;
	char *extensions=NULL;
	char *crl_ext=NULL;
	BIGNUM *serial=NULL;
	char *startdate=NULL;
	char *enddate=NULL;
	int days=0;
	int batch=0;
	int notext=0;
	X509 *x509=NULL;
	X509 *x=NULL;
	BIO *in=NULL,*out=NULL,*Sout=NULL,*Cout=NULL;
	char *dbfile=NULL;
	TXT_DB *db=NULL;
	X509_CRL *crl=NULL;
	X509_CRL_INFO *ci=NULL;
	X509_REVOKED *r=NULL;
	char **pp,*p,*f;
	int i,j;
	long l;
	const EVP_MD *dgst=NULL;
	STACK_OF(CONF_VALUE) *attribs=NULL;
	STACK_OF(X509) *cert_sk=NULL;
	BIO *hex=NULL;
#undef BSIZE
#define BSIZE 256
	MS_STATIC char buf[3][BSIZE];
	char *randfile=NULL;

#ifdef EFENCE
EF_PROTECT_FREE=1;
EF_PROTECT_BELOW=1;
EF_ALIGNMENT=0;
#endif

	apps_startup();

	conf = NULL;
	key = NULL;
	section = NULL;

	preserve=0;
	msie_hack=0;
	if (bio_err == NULL)
		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

	argc--;
	argv++;
	while (argc >= 1)
		{
		if	(strcmp(*argv,"-verbose") == 0)
			verbose=1;
		else if	(strcmp(*argv,"-config") == 0)
			{
			if (--argc < 1) goto bad;
			configfile= *(++argv);
			}
		else if (strcmp(*argv,"-name") == 0)
			{
			if (--argc < 1) goto bad;
			section= *(++argv);
			}
		else if (strcmp(*argv,"-startdate") == 0)
			{
			if (--argc < 1) goto bad;
			startdate= *(++argv);
			}
		else if (strcmp(*argv,"-enddate") == 0)
			{
			if (--argc < 1) goto bad;
			enddate= *(++argv);
			}
		else if (strcmp(*argv,"-days") == 0)
			{
			if (--argc < 1) goto bad;
			days=atoi(*(++argv));
			}
		else if (strcmp(*argv,"-md") == 0)
			{
			if (--argc < 1) goto bad;
			md= *(++argv);
			}
		else if (strcmp(*argv,"-policy") == 0)
			{
			if (--argc < 1) goto bad;
			policy= *(++argv);
			}
		else if (strcmp(*argv,"-keyfile") == 0)
			{
			if (--argc < 1) goto bad;
			keyfile= *(++argv);
			}
		else if (strcmp(*argv,"-passin") == 0)
			{
			if (--argc < 1) goto bad;
			passargin= *(++argv);
			}
		else if (strcmp(*argv,"-key") == 0)
			{
			if (--argc < 1) goto bad;
			key= *(++argv);
			}
		else if (strcmp(*argv,"-cert") == 0)
			{
			if (--argc < 1) goto bad;
			certfile= *(++argv);
			}
		else if (strcmp(*argv,"-in") == 0)
			{
			if (--argc < 1) goto bad;
			infile= *(++argv);
			req=1;
			}
		else if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) goto bad;
			outfile= *(++argv);
			}
		else if (strcmp(*argv,"-outdir") == 0)
			{
			if (--argc < 1) goto bad;
			outdir= *(++argv);
			}
		else if (strcmp(*argv,"-notext") == 0)
			notext=1;
		else if (strcmp(*argv,"-batch") == 0)
			batch=1;
		else if (strcmp(*argv,"-preserveDN") == 0)
			preserve=1;
		else if (strcmp(*argv,"-gencrl") == 0)
			gencrl=1;
		else if (strcmp(*argv,"-msie_hack") == 0)
			msie_hack=1;
		else if (strcmp(*argv,"-crldays") == 0)
			{
			if (--argc < 1) goto bad;
			crldays= atol(*(++argv));
			}
		else if (strcmp(*argv,"-crlhours") == 0)
			{
			if (--argc < 1) goto bad;
			crlhours= atol(*(++argv));
			}
		else if (strcmp(*argv,"-infiles") == 0)
			{
			argc--;
			argv++;
			req=1;
			break;
			}
		else if (strcmp(*argv, "-ss_cert") == 0)
			{
			if (--argc < 1) goto bad;
			ss_cert_file = *(++argv);
			req=1;
			}
		else if (strcmp(*argv, "-spkac") == 0)
			{
			if (--argc < 1) goto bad;
			spkac_file = *(++argv);
			req=1;
			}
		else if (strcmp(*argv,"-revoke") == 0)
			{
			if (--argc < 1) goto bad;
			infile= *(++argv);
			dorevoke=1;
			}
		else if (strcmp(*argv,"-extensions") == 0)
			{
			if (--argc < 1) goto bad;
			extensions= *(++argv);
			}
		else if (strcmp(*argv,"-crlexts") == 0)
			{
			if (--argc < 1) goto bad;
			crl_ext= *(++argv);
			}
		else
			{
bad:
			BIO_printf(bio_err,"unknown option %s\n",*argv);
			badops=1;
			break;
			}
		argc--;
		argv++;
		}

	if (badops)
		{
		for (pp=ca_usage; (*pp != NULL); pp++)
			BIO_printf(bio_err,*pp);
		goto err;
		}

	ERR_load_crypto_strings();

	/*****************************************************************/
	if (configfile == NULL) configfile = getenv("OPENSSL_CONF");
	if (configfile == NULL) configfile = getenv("SSLEAY_CONF");
	if (configfile == NULL)
		{
		/* We will just use 'buf[0]' as a temporary buffer.  */
#ifdef VMS
		strncpy(buf[0],X509_get_default_cert_area(),
			sizeof(buf[0])-1-sizeof(CONFIG_FILE));
#else
		strncpy(buf[0],X509_get_default_cert_area(),
			sizeof(buf[0])-2-sizeof(CONFIG_FILE));
		strcat(buf[0],"/");
#endif
		strcat(buf[0],CONFIG_FILE);
		configfile=buf[0];
		}

	BIO_printf(bio_err,"Using configuration from %s\n",configfile);
	if ((conf=CONF_load(NULL,configfile,&errorline)) == NULL)
		{
		if (errorline <= 0)
			BIO_printf(bio_err,"error loading the config file '%s'\n",
				configfile);
		else
			BIO_printf(bio_err,"error on line %ld of config file '%s'\n"
				,errorline,configfile);
		goto err;
		}

	/* Lets get the config section we are using */
	if (section == NULL)
		{
		section=CONF_get_string(conf,BASE_SECTION,ENV_DEFAULT_CA);
		if (section == NULL)
			{
			lookup_fail(BASE_SECTION,ENV_DEFAULT_CA);
			goto err;
			}
		}

	if (conf != NULL)
		{
		p=CONF_get_string(conf,NULL,"oid_file");
		if (p != NULL)
			{
			BIO *oid_bio;

			oid_bio=BIO_new_file(p,"r");
			if (oid_bio == NULL) 
				{
				/*
				BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
				ERR_print_errors(bio_err);
				*/
				ERR_clear_error();
				}
			else
				{
				OBJ_create_objects(oid_bio);
				BIO_free(oid_bio);
				}
			}
		if(!add_oid_section(bio_err,conf)) 
			{
			ERR_print_errors(bio_err);
			goto err;
			}
		}

	randfile = CONF_get_string(conf, BASE_SECTION, "RANDFILE");
	app_RAND_load_file(randfile, bio_err, 0);
	
	in=BIO_new(BIO_s_file());
	out=BIO_new(BIO_s_file());
	Sout=BIO_new(BIO_s_file());
	Cout=BIO_new(BIO_s_file());
	if ((in == NULL) || (out == NULL) || (Sout == NULL) || (Cout == NULL))
		{
		ERR_print_errors(bio_err);
		goto err;
		}

	/*****************************************************************/
	/* we definitely need an public key, so lets get it */

	if ((keyfile == NULL) && ((keyfile=CONF_get_string(conf,
		section,ENV_PRIVATE_KEY)) == NULL))
		{
		lookup_fail(section,ENV_PRIVATE_KEY);
		goto err;
		}
	if(!key && !app_passwd(bio_err, passargin, NULL, &key, NULL))
		{
		BIO_printf(bio_err,"Error getting password\n");
		goto err;
		}
	if (BIO_read_filename(in,keyfile) <= 0)
		{
		perror(keyfile);
		BIO_printf(bio_err,"trying to load CA private key\n");
		goto err;
		}
		pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,key);
		if(key) OPENSSL_cleanse(key,strlen(key));
	if (pkey == NULL)
		{
		BIO_printf(bio_err,"unable to load CA private key\n");
		goto err;
		}

	/*****************************************************************/
	/* we need a certificate */
	if ((certfile == NULL) && ((certfile=CONF_get_string(conf,
		section,ENV_CERTIFICATE)) == NULL))
		{
		lookup_fail(section,ENV_CERTIFICATE);
		goto err;
		}
        if (BIO_read_filename(in,certfile) <= 0)
		{
		perror(certfile);
		BIO_printf(bio_err,"trying to load CA certificate\n");
		goto err;