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openssl/apps/x509.c
Matt Caswell d278284e74 Fix some code maintenance issues 
Various instances of variables being written to, but then never read.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-21 10:51:57 +01:00

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/* 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/asn1.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/objects.h>
#include <openssl/pem.h>
#ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
# include <openssl/dsa.h>
#endif
#undef POSTFIX
#define POSTFIX ".srl"
#define DEF_DAYS 30
static int callb(int ok, X509_STORE_CTX *ctx);
static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
const EVP_MD *digest, CONF *conf, char *section);
static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
X509 *x, X509 *xca, EVP_PKEY *pkey,
STACK_OF(OPENSSL_STRING) *sigopts, char *serial,
int create, int days, int clrext, CONF *conf,
char *section, ASN1_INTEGER *sno, int reqfile);
static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_KEYFORM, OPT_REQ, OPT_CAFORM,
OPT_CAKEYFORM, OPT_SIGOPT, OPT_DAYS, OPT_PASSIN, OPT_EXTFILE,
OPT_EXTENSIONS, OPT_IN, OPT_OUT, OPT_SIGNKEY, OPT_CA,
OPT_CAKEY, OPT_CASERIAL, OPT_SET_SERIAL, OPT_FORCE_PUBKEY,
OPT_ADDTRUST, OPT_ADDREJECT, OPT_SETALIAS, OPT_CERTOPT, OPT_NAMEOPT,
OPT_C, OPT_EMAIL, OPT_OCSP_URI, OPT_SERIAL, OPT_NEXT_SERIAL,
OPT_MODULUS, OPT_PUBKEY, OPT_X509TOREQ, OPT_TEXT, OPT_HASH,
OPT_ISSUER_HASH, OPT_SUBJECT, OPT_ISSUER, OPT_FINGERPRINT, OPT_DATES,
OPT_PURPOSE, OPT_STARTDATE, OPT_ENDDATE, OPT_CHECKEND, OPT_CHECKHOST,
OPT_CHECKEMAIL, OPT_CHECKIP, OPT_NOOUT, OPT_TRUSTOUT, OPT_CLRTRUST,
OPT_CLRREJECT, OPT_ALIAS, OPT_CACREATESERIAL, OPT_CLREXT, OPT_OCSPID,
OPT_SUBJECT_HASH_OLD,
OPT_ISSUER_HASH_OLD,
OPT_BADSIG, OPT_MD, OPT_ENGINE, OPT_NOCERT
} OPTION_CHOICE;
OPTIONS x509_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'f',
"Input format - default PEM (one of DER, NET or PEM)"},
{"in", OPT_IN, '<', "Input file - default stdin"},
{"outform", OPT_OUTFORM, 'f',
"Output format - default PEM (one of DER, NET or PEM)"},
{"out", OPT_OUT, '>', "Output file - default stdout"},
{"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
{"passin", OPT_PASSIN, 's', "Private key password source"},
{"serial", OPT_SERIAL, '-', "Print serial number value"},
{"subject_hash", OPT_HASH, '-', "Print subject hash value"},
{"issuer_hash", OPT_ISSUER_HASH, '-', "Print issuer hash value"},
{"hash", OPT_HASH, '-', "Synonym for -subject_hash"},
{"subject", OPT_SUBJECT, '-', "Print subject DN"},
{"issuer", OPT_ISSUER, '-', "Print issuer DN"},
{"email", OPT_EMAIL, '-', "Print email address(es)"},
{"startdate", OPT_STARTDATE, '-', "Set notBefore field"},
{"enddate", OPT_ENDDATE, '-', "Set notAfter field"},
{"purpose", OPT_PURPOSE, '-', "Print out certificate purposes"},
{"dates", OPT_DATES, '-', "Both Before and After dates"},
{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
{"pubkey", OPT_PUBKEY, '-', "Output the public key"},
{"fingerprint", OPT_FINGERPRINT, '-',
"Print the certificate fingerprint"},
{"alias", OPT_ALIAS, '-', "Output certificate alias"},
{"noout", OPT_NOOUT, '-', "No output, just status"},
{"nocert", OPT_NOCERT, '-', "No certificate output"},
{"ocspid", OPT_OCSPID, '-',
"Print OCSP hash values for the subject name and public key"},
{"ocsp_uri", OPT_OCSP_URI, '-', "Print OCSP Responder URL(s)"},
{"trustout", OPT_TRUSTOUT, '-', "Output a trusted certificate"},
{"clrtrust", OPT_CLRTRUST, '-', "Clear all trusted purposes"},
{"clrext", OPT_CLREXT, '-', "Clear all rejected purposes"},
{"addtrust", OPT_ADDTRUST, 's', "Trust certificate for a given purpose"},
{"addreject", OPT_ADDREJECT, 's',
"Reject certificate for a given purpose"},
{"setalias", OPT_SETALIAS, 's', "Set certificate alias"},
{"days", OPT_DAYS, 'n',
"How long till expiry of a signed certificate - def 30 days"},
{"checkend", OPT_CHECKEND, 'M',
"Check whether the cert expires in the next arg seconds"},
{OPT_MORE_STR, 1, 1, "Exit 1 if so, 0 if not"},
{"signkey", OPT_SIGNKEY, '<', "Self sign cert with arg"},
{"x509toreq", OPT_X509TOREQ, '-',
"Output a certification request object"},
{"req", OPT_REQ, '-', "Input is a certificate request, sign and output"},
{"CA", OPT_CA, '<', "Set the CA certificate, must be PEM format"},
{"CAkey", OPT_CAKEY, 's',
"The CA key, must be PEM format; if not in CAfile"},
{"CAcreateserial", OPT_CACREATESERIAL, '-',
"Create serial number file if it does not exist"},
{"CAserial", OPT_CASERIAL, 's', "Serial file"},
{"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
{"text", OPT_TEXT, '-', "Print the certificate in text form"},
{"C", OPT_C, '-', "Print out C code forms"},
{"extfile", OPT_EXTFILE, '<', "File with X509V3 extensions to add"},
{"extensions", OPT_EXTENSIONS, 's', "Section from config file to use"},
{"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
{"certopt", OPT_CERTOPT, 's', "Various certificate text options"},
{"checkhost", OPT_CHECKHOST, 's', "Check certificate matches host"},
{"checkemail", OPT_CHECKEMAIL, 's', "Check certificate matches email"},
{"checkip", OPT_CHECKIP, 's', "Check certificate matches ipaddr"},
{"CAform", OPT_CAFORM, 'F', "CA format - default PEM"},
{"CAkeyform", OPT_CAKEYFORM, 'F', "CA key format - default PEM"},
{"sigopt", OPT_SIGOPT, 's'},
{"force_pubkey", OPT_FORCE_PUBKEY, '<'},
{"next_serial", OPT_NEXT_SERIAL, '-'},
{"clrreject", OPT_CLRREJECT, '-'},
{"badsig", OPT_BADSIG, '-'},
{"", OPT_MD, '-', "Any supported digest"},
#ifndef OPENSSL_NO_MD5
{"subject_hash_old", OPT_SUBJECT_HASH_OLD, '-',
"Print old-style (MD5) issuer hash value"},
{"issuer_hash_old", OPT_ISSUER_HASH_OLD, '-',
"Print old-style (MD5) subject hash value"},
#endif
#ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
{NULL}
};
int x509_main(int argc, char **argv)
{
ASN1_INTEGER *sno = NULL;
ASN1_OBJECT *objtmp;
BIO *out = NULL;
CONF *extconf = NULL;
EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;
STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;
STACK_OF(OPENSSL_STRING) *sigopts = NULL;
X509 *x = NULL, *xca = NULL;
X509_REQ *req = NULL, *rq = NULL;
X509_STORE *ctx = NULL;
const EVP_MD *digest = NULL;
char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;
char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;
char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;
char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;
char buf[256], *prog;
int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;
int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;
int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;
int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;
int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;
int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;
int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;
int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;
int enddate = 0;
time_t checkoffset = 0;
unsigned long nmflag = 0, certflag = 0;
char nmflag_set = 0;
OPTION_CHOICE o;
ENGINE *e = NULL;
#ifndef OPENSSL_NO_MD5
int subject_hash_old = 0, issuer_hash_old = 0;
#endif
ctx = X509_STORE_new();
if (ctx == NULL)
goto end;
X509_STORE_set_verify_cb(ctx, callb);
prog = opt_init(argc, argv, x509_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(x509_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
goto opthelp;
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
goto opthelp;
break;
case OPT_CAFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))
goto opthelp;
break;
case OPT_CAKEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &CAkeyformat))
goto opthelp;
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_REQ:
reqfile = need_rand = 1;
break;
case OPT_SIGOPT:
if (!sigopts)
sigopts = sk_OPENSSL_STRING_new_null();
if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
goto opthelp;
break;
case OPT_DAYS:
days = atoi(opt_arg());
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_EXTFILE:
extfile = opt_arg();
break;
case OPT_EXTENSIONS:
extsect = opt_arg();
break;
case OPT_SIGNKEY:
keyfile = opt_arg();
sign_flag = ++num;
need_rand = 1;
break;
case OPT_CA:
CAfile = opt_arg();
CA_flag = ++num;
need_rand = 1;
break;
case OPT_CAKEY:
CAkeyfile = opt_arg();
break;
case OPT_CASERIAL:
CAserial = opt_arg();
break;
case OPT_SET_SERIAL:
if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)
goto opthelp;
break;
case OPT_FORCE_PUBKEY:
fkeyfile = opt_arg();
break;
case OPT_ADDTRUST:
if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
BIO_printf(bio_err,
"%s: Invalid trust object value %s\n",
prog, opt_arg());
goto opthelp;
}
if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)
goto end;
sk_ASN1_OBJECT_push(trust, objtmp);
trustout = 1;
break;
case OPT_ADDREJECT:
if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {
BIO_printf(bio_err,
"%s: Invalid reject object value %s\n",
prog, opt_arg());
goto opthelp;
}
if (reject == NULL
&& (reject = sk_ASN1_OBJECT_new_null()) == NULL)
goto end;
sk_ASN1_OBJECT_push(reject, objtmp);
trustout = 1;
break;
case OPT_SETALIAS:
alias = opt_arg();
trustout = 1;
break;
case OPT_CERTOPT:
if (!set_cert_ex(&certflag, opt_arg()))
goto opthelp;
break;
case OPT_NAMEOPT:
nmflag_set = 1;
if (!set_name_ex(&nmflag, opt_arg()))
goto opthelp;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_C:
C = ++num;
break;
case OPT_EMAIL:
email = ++num;
break;
case OPT_OCSP_URI:
ocsp_uri = ++num;
break;
case OPT_SERIAL:
serial = ++num;
break;
case OPT_NEXT_SERIAL:
next_serial = ++num;
break;
case OPT_MODULUS:
modulus = ++num;
break;
case OPT_PUBKEY:
pubkey = ++num;
break;
case OPT_X509TOREQ:
x509req = ++num;
break;
case OPT_TEXT:
text = ++num;
break;
case OPT_SUBJECT:
subject = ++num;
break;
case OPT_ISSUER:
issuer = ++num;
break;
case OPT_FINGERPRINT:
fingerprint = ++num;
break;
case OPT_HASH:
subject_hash = ++num;
break;
case OPT_ISSUER_HASH:
issuer_hash = ++num;
break;
case OPT_PURPOSE:
pprint = ++num;
break;
case OPT_STARTDATE:
startdate = ++num;
break;
case OPT_ENDDATE:
enddate = ++num;
break;
case OPT_NOOUT:
noout = ++num;
break;
case OPT_NOCERT:
nocert = 1;
break;
case OPT_TRUSTOUT:
trustout = 1;
break;
case OPT_CLRTRUST:
clrtrust = ++num;
break;
case OPT_CLRREJECT:
clrreject = ++num;
break;
case OPT_ALIAS:
aliasout = ++num;
break;
case OPT_CACREATESERIAL:
CA_createserial = ++num;
break;
case OPT_CLREXT:
clrext = 1;
break;
case OPT_OCSPID:
ocspid = ++num;
break;
case OPT_BADSIG:
badsig = 1;
break;
#ifndef OPENSSL_NO_MD5
case OPT_SUBJECT_HASH_OLD:
subject_hash_old = ++num;
break;
case OPT_ISSUER_HASH_OLD:
issuer_hash_old = ++num;
break;
#else
case OPT_SUBJECT_HASH_OLD:
case OPT_ISSUER_HASH_OLD:
break;
#endif
case OPT_DATES:
startdate = ++num;
enddate = ++num;
break;
case OPT_CHECKEND:
checkend = 1;
{
intmax_t temp = 0;
if (!opt_imax(opt_arg(), &temp))
goto opthelp;
checkoffset = (time_t)temp;
if ((intmax_t)checkoffset != temp) {
BIO_printf(bio_err, "%s: checkend time out of range %s\n",
prog, opt_arg());
goto opthelp;
}
}
break;
case OPT_CHECKHOST:
checkhost = opt_arg();
break;
case OPT_CHECKEMAIL:
checkemail = opt_arg();
break;
case OPT_CHECKIP:
checkip = opt_arg();
break;
case OPT_MD:
if (!opt_md(opt_unknown(), &digest))
goto opthelp;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (argc != 0) {
BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
goto opthelp;
}
if (!nmflag_set)
nmflag = XN_FLAG_ONELINE;
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
if (need_rand)
app_RAND_load_file(NULL, 0);
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (!X509_STORE_set_default_paths(ctx)) {
ERR_print_errors(bio_err);
goto end;
}
if (fkeyfile) {
fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
if (fkey == NULL)
goto end;
}
if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
CAkeyfile = CAfile;
} else if ((CA_flag) && (CAkeyfile == NULL)) {
BIO_printf(bio_err,
"need to specify a CAkey if using the CA command\n");
goto end;
}
if (extfile) {
X509V3_CTX ctx2;
if ((extconf = app_load_config(extfile)) == NULL)
goto end;
if (!extsect) {
extsect = NCONF_get_string(extconf, "default", "extensions");
if (!extsect) {
ERR_clear_error();
extsect = "default";
}
}
X509V3_set_ctx_test(&ctx2);
X509V3_set_nconf(&ctx2, extconf);
if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {
BIO_printf(bio_err,
"Error Loading extension section %s\n", extsect);
ERR_print_errors(bio_err);
goto end;
}
}
if (reqfile) {
EVP_PKEY *pkey;
BIO *in;
if (!sign_flag && !CA_flag) {
BIO_printf(bio_err, "We need a private key to sign with\n");
goto end;
}
in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
BIO_free(in);
if (req == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if ((pkey = X509_REQ_get0_pubkey(req)) == NULL) {
BIO_printf(bio_err, "error unpacking public key\n");
goto end;
}
i = X509_REQ_verify(req, pkey);
if (i < 0) {
BIO_printf(bio_err, "Signature verification error\n");
ERR_print_errors(bio_err);
goto end;
}
if (i == 0) {
BIO_printf(bio_err,
"Signature did not match the certificate request\n");
goto end;
} else
BIO_printf(bio_err, "Signature ok\n");
print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),
nmflag);
if ((x = X509_new()) == NULL)
goto end;
if (sno == NULL) {
sno = ASN1_INTEGER_new();
if (sno == NULL || !rand_serial(NULL, sno))
goto end;
if (!X509_set_serialNumber(x, sno))
goto end;
ASN1_INTEGER_free(sno);
sno = NULL;
} else if (!X509_set_serialNumber(x, sno))
goto end;
if (!X509_set_issuer_name(x, X509_REQ_get_subject_name(req)))
goto end;
if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
goto end;
X509_gmtime_adj(X509_get_notBefore(x), 0);
X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL);
if (fkey)
X509_set_pubkey(x, fkey);
else {
pkey = X509_REQ_get0_pubkey(req);
X509_set_pubkey(x, pkey);
}
} else
x = load_cert(infile, informat, "Certificate");
if (x == NULL)
goto end;
if (CA_flag) {
xca = load_cert(CAfile, CAformat, "CA Certificate");
if (xca == NULL)
goto end;
}
if (!noout || text || next_serial) {
OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");
}
if (alias)
X509_alias_set1(x, (unsigned char *)alias, -1);
if (clrtrust)
X509_trust_clear(x);
if (clrreject)
X509_reject_clear(x);
if (trust) {
for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
objtmp = sk_ASN1_OBJECT_value(trust, i);
X509_add1_trust_object(x, objtmp);
}
}
if (reject) {
for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
objtmp = sk_ASN1_OBJECT_value(reject, i);
X509_add1_reject_object(x, objtmp);
}
}
if (num) {
for (i = 1; i <= num; i++) {
if (issuer == i) {
print_name(out, "issuer= ", X509_get_issuer_name(x), nmflag);
} else if (subject == i) {
print_name(out, "subject= ",
X509_get_subject_name(x), nmflag);
} else if (serial == i) {
BIO_printf(out, "serial=");
i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));
BIO_printf(out, "\n");
} else if (next_serial == i) {
BIGNUM *bnser;
ASN1_INTEGER *ser;
ser = X509_get_serialNumber(x);
bnser = ASN1_INTEGER_to_BN(ser, NULL);
if (!bnser)
goto end;
if (!BN_add_word(bnser, 1))
goto end;
ser = BN_to_ASN1_INTEGER(bnser, NULL);
if (!ser)
goto end;
BN_free(bnser);
i2a_ASN1_INTEGER(out, ser);
ASN1_INTEGER_free(ser);
BIO_puts(out, "\n");
} else if ((email == i) || (ocsp_uri == i)) {
int j;
STACK_OF(OPENSSL_STRING) *emlst;
if (email == i)
emlst = X509_get1_email(x);
else
emlst = X509_get1_ocsp(x);
for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)
BIO_printf(out, "%s\n",
sk_OPENSSL_STRING_value(emlst, j));
X509_email_free(emlst);
} else if (aliasout == i) {
unsigned char *alstr;
alstr = X509_alias_get0(x, NULL);
if (alstr)
BIO_printf(out, "%s\n", alstr);
else
BIO_puts(out, "<No Alias>\n");
} else if (subject_hash == i) {
BIO_printf(out, "%08lx\n", X509_subject_name_hash(x));
}
#ifndef OPENSSL_NO_MD5
else if (subject_hash_old == i) {
BIO_printf(out, "%08lx\n", X509_subject_name_hash_old(x));
}
#endif
else if (issuer_hash == i) {
BIO_printf(out, "%08lx\n", X509_issuer_name_hash(x));
}
#ifndef OPENSSL_NO_MD5
else if (issuer_hash_old == i) {
BIO_printf(out, "%08lx\n", X509_issuer_name_hash_old(x));
}
#endif
else if (pprint == i) {
X509_PURPOSE *ptmp;
int j;
BIO_printf(out, "Certificate purposes:\n");
for (j = 0; j < X509_PURPOSE_get_count(); j++) {
ptmp = X509_PURPOSE_get0(j);
purpose_print(out, x, ptmp);
}
} else if (modulus == i) {
EVP_PKEY *pkey;
pkey = X509_get0_pubkey(x);
if (pkey == NULL) {
BIO_printf(bio_err, "Modulus=unavailable\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(out, "Modulus=");
#ifndef OPENSSL_NO_RSA
if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
BIGNUM *n;
RSA_get0_key(EVP_PKEY_get0_RSA(pkey), &n, NULL, NULL);
BN_print(out, n);
} else
#endif
#ifndef OPENSSL_NO_DSA
if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) {
BIGNUM *dsapub = NULL;
DSA_get0_key(EVP_PKEY_get0_DSA(pkey), &dsapub, NULL);
BN_print(out, dsapub);
} else
#endif
{
BIO_printf(out, "Wrong Algorithm type");
}
BIO_printf(out, "\n");
} else if (pubkey == i) {
EVP_PKEY *pkey;
pkey = X509_get0_pubkey(x);
if (pkey == NULL) {
BIO_printf(bio_err, "Error getting public key\n");
ERR_print_errors(bio_err);
goto end;
}
PEM_write_bio_PUBKEY(out, pkey);
} else if (C == i) {
unsigned char *d;
char *m;
int len;
X509_NAME_oneline(X509_get_subject_name(x), buf, sizeof buf);
BIO_printf(out, "/*\n"
" * Subject: %s\n", buf);
X509_NAME_oneline(X509_get_issuer_name(x), buf, sizeof buf);
BIO_printf(out, " * Issuer: %s\n"
" */\n", buf);
len = i2d_X509(x, NULL);
m = app_malloc(len, "x509 name buffer");
d = (unsigned char *)m;
len = i2d_X509_NAME(X509_get_subject_name(x), &d);
print_array(out, "the_subject_name", len, (unsigned char *)m);
d = (unsigned char *)m;
len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);
print_array(out, "the_public_key", len, (unsigned char *)m);
d = (unsigned char *)m;
len = i2d_X509(x, &d);
print_array(out, "the_certificate", len, (unsigned char *)m);
OPENSSL_free(m);
} else if (text == i) {
X509_print_ex(out, x, nmflag, certflag);
} else if (startdate == i) {
BIO_puts(out, "notBefore=");
ASN1_TIME_print(out, X509_get_notBefore(x));
BIO_puts(out, "\n");
} else if (enddate == i) {
BIO_puts(out, "notAfter=");
ASN1_TIME_print(out, X509_get_notAfter(x));
BIO_puts(out, "\n");
} else if (fingerprint == i) {
int j;
unsigned int n;
unsigned char md[EVP_MAX_MD_SIZE];
const EVP_MD *fdig = digest;
if (!fdig)
fdig = EVP_sha1();
if (!X509_digest(x, fdig, md, &n)) {
BIO_printf(bio_err, "out of memory\n");
goto end;
}
BIO_printf(out, "%s Fingerprint=",
OBJ_nid2sn(EVP_MD_type(fdig)));
for (j = 0; j < (int)n; j++) {
BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)
? '\n' : ':');
}
}
/* should be in the library */
else if ((sign_flag == i) && (x509req == 0)) {
BIO_printf(bio_err, "Getting Private key\n");
if (Upkey == NULL) {
Upkey = load_key(keyfile, keyformat, 0,
passin, e, "Private key");
if (Upkey == NULL)
goto end;
}
assert(need_rand);
if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))
goto end;
} else if (CA_flag == i) {
BIO_printf(bio_err, "Getting CA Private Key\n");
if (CAkeyfile != NULL) {
CApkey = load_key(CAkeyfile, CAkeyformat,
0, passin, e, "CA Private Key");
if (CApkey == NULL)
goto end;
}
assert(need_rand);
if (!x509_certify(ctx, CAfile, digest, x, xca,
CApkey, sigopts,
CAserial, CA_createserial, days, clrext,
extconf, extsect, sno, reqfile))
goto end;
} else if (x509req == i) {
EVP_PKEY *pk;
BIO_printf(bio_err, "Getting request Private Key\n");
if (keyfile == NULL) {
BIO_printf(bio_err, "no request key file specified\n");
goto end;
} else {
pk = load_key(keyfile, keyformat, 0,
passin, e, "request key");
if (pk == NULL)
goto end;
}
BIO_printf(bio_err, "Generating certificate request\n");
rq = X509_to_X509_REQ(x, pk, digest);
EVP_PKEY_free(pk);
if (rq == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (!noout) {
X509_REQ_print(out, rq);
PEM_write_bio_X509_REQ(out, rq);
}
noout = 1;
} else if (ocspid == i) {
X509_ocspid_print(out, x);
}
}
}
if (checkend) {
time_t tcheck = time(NULL) + checkoffset;
if (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0) {
BIO_printf(out, "Certificate will expire\n");
ret = 1;
} else {
BIO_printf(out, "Certificate will not expire\n");
ret = 0;
}
goto end;
}
print_cert_checks(out, x, checkhost, checkemail, checkip);
if (noout || nocert) {
ret = 0;
goto end;
}
if (badsig) {
ASN1_BIT_STRING *signature;
unsigned char *s;
X509_get0_signature(&signature, NULL, x);
s = ASN1_STRING_data(signature);
s[ASN1_STRING_length(signature) - 1] ^= 0x1;
}
if (outformat == FORMAT_ASN1)
i = i2d_X509_bio(out, x);
else if (outformat == FORMAT_PEM) {
if (trustout)
i = PEM_write_bio_X509_AUX(out, x);
else
i = PEM_write_bio_X509(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 certificate\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
end:
if (need_rand)
app_RAND_write_file(NULL);
NCONF_free(extconf);
BIO_free_all(out);
X509_STORE_free(ctx);
X509_REQ_free(req);
X509_free(x);
X509_free(xca);
EVP_PKEY_free(Upkey);
EVP_PKEY_free(CApkey);
EVP_PKEY_free(fkey);
sk_OPENSSL_STRING_free(sigopts);
X509_REQ_free(rq);
ASN1_INTEGER_free(sno);
sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
OPENSSL_free(passin);
return (ret);
}
static ASN1_INTEGER *x509_load_serial(char *CAfile, char *serialfile,
int create)
{
char *buf = NULL, *p;
ASN1_INTEGER *bs = NULL;
BIGNUM *serial = NULL;
size_t len;
len = ((serialfile == NULL)
? (strlen(CAfile) + strlen(POSTFIX) + 1)
: (strlen(serialfile))) + 1;
buf = app_malloc(len, "serial# buffer");
if (serialfile == NULL) {
OPENSSL_strlcpy(buf, CAfile, len);
for (p = buf; *p; p++)
if (*p == '.') {
*p = '\0';
break;
}
OPENSSL_strlcat(buf, POSTFIX, len);
} else
OPENSSL_strlcpy(buf, serialfile, len);
serial = load_serial(buf, create, NULL);
if (serial == NULL)
goto end;
if (!BN_add_word(serial, 1)) {
BIO_printf(bio_err, "add_word failure\n");
goto end;
}
if (!save_serial(buf, NULL, serial, &bs))
goto end;
end:
OPENSSL_free(buf);
BN_free(serial);
return bs;
}
static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
X509 *x, X509 *xca, EVP_PKEY *pkey,
STACK_OF(OPENSSL_STRING) *sigopts,
char *serialfile, int create,
int days, int clrext, CONF *conf, char *section,
ASN1_INTEGER *sno, int reqfile)
{
int ret = 0;
ASN1_INTEGER *bs = NULL;
X509_STORE_CTX *xsc = NULL;
EVP_PKEY *upkey;
upkey = X509_get0_pubkey(xca);
EVP_PKEY_copy_parameters(upkey, pkey);
xsc = X509_STORE_CTX_new();
if (xsc == NULL || !X509_STORE_CTX_init(xsc, ctx, x, NULL)) {
BIO_printf(bio_err, "Error initialising X509 store\n");
goto end;
}
if (sno)
bs = sno;
else if ((bs = x509_load_serial(CAfile, serialfile, create)) == NULL)
goto end;
/*
* NOTE: this certificate can/should be self signed, unless it was a
* certificate request in which case it is not.
*/
X509_STORE_CTX_set_cert(xsc, x);
X509_STORE_CTX_set_flags(xsc, X509_V_FLAG_CHECK_SS_SIGNATURE);
if (!reqfile && X509_verify_cert(xsc) <= 0)
goto end;
if (!X509_check_private_key(xca, pkey)) {
BIO_printf(bio_err,
"CA certificate and CA private key do not match\n");
goto end;
}
if (!X509_set_issuer_name(x, X509_get_subject_name(xca)))
goto end;
if (!X509_set_serialNumber(x, bs))
goto end;
if (X509_gmtime_adj(X509_get_notBefore(x), 0L) == NULL)
goto end;
/* hardwired expired */
if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
goto end;
if (clrext) {
while (X509_get_ext_count(x) > 0)
X509_delete_ext(x, 0);
}
if (conf) {
X509V3_CTX ctx2;
X509_set_version(x, 2); /* version 3 certificate */
X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
X509V3_set_nconf(&ctx2, conf);
if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x))
goto end;
}
if (!do_X509_sign(x, pkey, digest, sigopts))
goto end;
ret = 1;
end:
X509_STORE_CTX_free(xsc);
if (!ret)
ERR_print_errors(bio_err);
if (!sno)
ASN1_INTEGER_free(bs);
return ret;
}
static int callb(int ok, X509_STORE_CTX *ctx)
{
int err;
X509 *err_cert;
/*
* it is ok to use a self signed certificate This case will catch both
* the initial ok == 0 and the final ok == 1 calls to this function
*/
err = X509_STORE_CTX_get_error(ctx);
if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
return 1;
/*
* BAD we should have gotten an error. Normally if everything worked
* X509_STORE_CTX_get_error(ctx) will still be set to
* DEPTH_ZERO_SELF_....
*/
if (ok) {
BIO_printf(bio_err,
"error with certificate to be certified - should be self signed\n");
return 0;
} else {
err_cert = X509_STORE_CTX_get_current_cert(ctx);
print_name(bio_err, NULL, X509_get_subject_name(err_cert), 0);
BIO_printf(bio_err,
"error with certificate - error %d at depth %d\n%s\n", err,
X509_STORE_CTX_get_error_depth(ctx),
X509_verify_cert_error_string(err));
return 1;
}
}
/* self sign */
static int sign(X509 *x, EVP_PKEY *pkey, int days, int clrext,
const EVP_MD *digest, CONF *conf, char *section)
{
if (!X509_set_issuer_name(x, X509_get_subject_name(x)))
goto err;
if (X509_gmtime_adj(X509_get_notBefore(x), 0) == NULL)
goto err;
if (X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL) == NULL)
goto err;
if (!X509_set_pubkey(x, pkey))
goto err;
if (clrext) {
while (X509_get_ext_count(x) > 0)
X509_delete_ext(x, 0);
}
if (conf) {
X509V3_CTX ctx;
X509_set_version(x, 2); /* version 3 certificate */
X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
X509V3_set_nconf(&ctx, conf);
if (!X509V3_EXT_add_nconf(conf, &ctx, section, x))
goto err;
}
if (!X509_sign(x, pkey, digest))
goto err;
return 1;
err:
ERR_print_errors(bio_err);
return 0;
}
static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt)
{
int id, i, idret;
char *pname;
id = X509_PURPOSE_get_id(pt);
pname = X509_PURPOSE_get0_name(pt);
for (i = 0; i < 2; i++) {
idret = X509_check_purpose(cert, id, i);
BIO_printf(bio, "%s%s : ", pname, i ? " CA" : "");
if (idret == 1)
BIO_printf(bio, "Yes\n");
else if (idret == 0)
BIO_printf(bio, "No\n");
else
BIO_printf(bio, "Yes (WARNING code=%d)\n", idret);
}
return 1;
}
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