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openssl/crypto/pem/pem_all.c
Richard Levitte 7f9c37457a To protect FIPS-related global variables, add locking mechanisms 
around them.

NOTE: because two new locks are added, this adds potential binary
incompatibility with earlier versions in the 0.9.7 series.  However,
those locks will only ever be touched when FIPS_mode_set() is called
and after, thanks to a variable that's only changed from 0 to 1 once
(when FIPS_mode_set() is called).  So basically, as long as FIPS mode
hasn't been engaged explicitely by the calling application, the new
locks are treated as if they didn't exist at all, thus not becoming a
problem.  Applications that are built or rebuilt to use FIPS
functionality will need to be recompiled in any case, thus not being a
problem either.
2004-07-30 14:38:02 +00:00

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/* crypto/pem/pem_all.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>
#undef SSLEAY_MACROS
#include "cryptlib.h"
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs7.h>
#include <openssl/pem.h>
#include <openssl/fips.h>
#ifndef OPENSSL_NO_RSA
static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
#endif
#ifndef OPENSSL_NO_DSA
static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
#endif
IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
#ifndef OPENSSL_NO_RSA
/* We treat RSA or DSA private keys as a special case.
*
* For private keys we read in an EVP_PKEY structure with
* PEM_read_bio_PrivateKey() and extract the relevant private
* key: this means can handle "traditional" and PKCS#8 formats
* transparently.
*/
static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
{
RSA *rtmp;
if(!key) return NULL;
rtmp = EVP_PKEY_get1_RSA(key);
EVP_PKEY_free(key);
if(!rtmp) return NULL;
if(rsa) {
RSA_free(*rsa);
*rsa = rtmp;
}
return rtmp;
}
RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
void *u)
{
EVP_PKEY *pktmp;
pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
return pkey_get_rsa(pktmp, rsa);
}
#ifndef OPENSSL_NO_FP_API
RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb,
void *u)
{
EVP_PKEY *pktmp;
pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
return pkey_get_rsa(pktmp, rsa);
}
#endif
#ifdef OPENSSL_FIPS
int PEM_write_bio_RSAPrivateKey(BIO *bp, RSA *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
EVP_PKEY *k;
int ret;
k = EVP_PKEY_new();
if (!k)
return 0;
EVP_PKEY_set1_RSA(k, x);
ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
EVP_PKEY_free(k);
return ret;
}
#ifndef OPENSSL_NO_FP_API
int PEM_write_RSAPrivateKey(FILE *fp, RSA *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
EVP_PKEY *k;
int ret;
k = EVP_PKEY_new();
if (!k)
return 0;
EVP_PKEY_set1_RSA(k, x);
ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
EVP_PKEY_free(k);
return ret;
}
#endif
#else
IMPLEMENT_PEM_write_cb(RSAPrivateKey, RSA, PEM_STRING_RSA, RSAPrivateKey)
#endif
IMPLEMENT_PEM_rw(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC, RSAPublicKey)
IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
#endif
#ifndef OPENSSL_NO_DSA
static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
{
DSA *dtmp;
if(!key) return NULL;
dtmp = EVP_PKEY_get1_DSA(key);
EVP_PKEY_free(key);
if(!dtmp) return NULL;
if(dsa) {
DSA_free(*dsa);
*dsa = dtmp;
}
return dtmp;
}
DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
void *u)
{
EVP_PKEY *pktmp;
pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
return pkey_get_dsa(pktmp, dsa);
}
#ifdef OPENSSL_FIPS
int PEM_write_bio_DSAPrivateKey(BIO *bp, DSA *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
EVP_PKEY *k;
int ret;
k = EVP_PKEY_new();
if (!k)
return 0;
EVP_PKEY_set1_DSA(k, x);
ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
EVP_PKEY_free(k);
return ret;
}
#ifndef OPENSSL_NO_FP_API
int PEM_write_DSAPrivateKey(FILE *fp, DSA *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
EVP_PKEY *k;
int ret;
k = EVP_PKEY_new();
if (!k)
return 0;
EVP_PKEY_set1_DSA(k, x);
ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
EVP_PKEY_free(k);
return ret;
}
#endif
#else
IMPLEMENT_PEM_write_cb(DSAPrivateKey, DSA, PEM_STRING_DSA, DSAPrivateKey)
#endif
IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
#ifndef OPENSSL_NO_FP_API
DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb,
void *u)
{
EVP_PKEY *pktmp;
pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
return pkey_get_dsa(pktmp, dsa);
}
#endif
IMPLEMENT_PEM_rw(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
#endif
#ifndef OPENSSL_NO_DH
IMPLEMENT_PEM_rw(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
#endif
/* The PrivateKey case is not that straightforward.
* IMPLEMENT_PEM_rw_cb(PrivateKey, EVP_PKEY, PEM_STRING_EVP_PKEY, PrivateKey)
* does not work, RSA and DSA keys have specific strings.
* (When reading, parameter PEM_STRING_EVP_PKEY is a wildcard for anything
* appropriate.)
*/
#ifdef OPENSSL_FIPS
int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
if (FIPS_mode())
return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
(char *)kstr, klen, cb, u);
else
return PEM_ASN1_write_bio((int (*)())i2d_PrivateKey,
(((x)->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA),
bp,(char *)x,enc,kstr,klen,cb,u);
}
#ifndef OPENSSL_NO_FP_API
int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
unsigned char *kstr, int klen,
pem_password_cb *cb, void *u)
{
if (FIPS_mode())
return PEM_write_PKCS8PrivateKey(fp, x, enc,
(char *)kstr, klen, cb, u);
else
return PEM_ASN1_write((int (*)())i2d_PrivateKey,
(((x)->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA),
fp,(char *)x,enc,kstr,klen,cb,u);
}
#endif
#else
IMPLEMENT_PEM_write_cb(PrivateKey, EVP_PKEY, ((x->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA), PrivateKey)
#endif
IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
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