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/**
* XMLSec library
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>
*/
#include "globals.h"
#include <string.h>
#include <gnutls/gnutls.h>
#include <gcrypt.h>
#include <xmlsec/xmlsec.h>
#include <xmlsec/keys.h>
#include <xmlsec/transforms.h>
#include <xmlsec/errors.h>
#include <xmlsec/dl.h>
#include <xmlsec/private.h>
#include <xmlsec/gnutls/app.h>
#include <xmlsec/gnutls/crypto.h>
static xmlSecCryptoDLFunctionsPtr gXmlSecGnuTLSFunctions = NULL;
/**
* xmlSecCryptoGetFunctions_gnutls:
*
* Gets the pointer to xmlsec-gnutls functions table.
*
* Returns: the xmlsec-gnutls functions table or NULL if an error occurs.
*/
xmlSecCryptoDLFunctionsPtr
xmlSecCryptoGetFunctions_gnutls(void) {
static xmlSecCryptoDLFunctions functions;
if(gXmlSecGnuTLSFunctions != NULL) {
return(gXmlSecGnuTLSFunctions);
}
memset(&functions, 0, sizeof(functions));
gXmlSecGnuTLSFunctions = &functions;
/**
* Crypto Init/shutdown
*/
gXmlSecGnuTLSFunctions->cryptoInit = xmlSecGnuTLSInit;
gXmlSecGnuTLSFunctions->cryptoShutdown = xmlSecGnuTLSShutdown;
gXmlSecGnuTLSFunctions->cryptoKeysMngrInit = xmlSecGnuTLSKeysMngrInit;
/**
* Key data ids
*/
#ifndef XMLSEC_NO_AES
gXmlSecGnuTLSFunctions->keyDataAesGetKlass = xmlSecGnuTLSKeyDataAesGetKlass;
#endif /* XMLSEC_NO_AES */
#ifndef XMLSEC_NO_DES
gXmlSecGnuTLSFunctions->keyDataDesGetKlass = xmlSecGnuTLSKeyDataDesGetKlass;
#endif /* XMLSEC_NO_DES */
#ifndef XMLSEC_NO_HMAC
gXmlSecGnuTLSFunctions->keyDataHmacGetKlass = xmlSecGnuTLSKeyDataHmacGetKlass;
#endif /* XMLSEC_NO_HMAC */
/**
* Key data store ids
*/
/**
* Crypto transforms ids
*/
#ifndef XMLSEC_NO_AES
gXmlSecGnuTLSFunctions->transformAes128CbcGetKlass = xmlSecGnuTLSTransformAes128CbcGetKlass;
gXmlSecGnuTLSFunctions->transformAes192CbcGetKlass = xmlSecGnuTLSTransformAes192CbcGetKlass;
gXmlSecGnuTLSFunctions->transformAes256CbcGetKlass = xmlSecGnuTLSTransformAes256CbcGetKlass;
#endif /* XMLSEC_NO_AES */
#ifndef XMLSEC_NO_DES
gXmlSecGnuTLSFunctions->transformDes3CbcGetKlass = xmlSecGnuTLSTransformDes3CbcGetKlass;
#endif /* XMLSEC_NO_DES */
#ifndef XMLSEC_NO_HMAC
gXmlSecGnuTLSFunctions->transformHmacSha1GetKlass = xmlSecGnuTLSTransformHmacSha1GetKlass;
gXmlSecGnuTLSFunctions->transformHmacRipemd160GetKlass = xmlSecGnuTLSTransformHmacRipemd160GetKlass;
gXmlSecGnuTLSFunctions->transformHmacMd5GetKlass = xmlSecGnuTLSTransformHmacMd5GetKlass;
#endif /* XMLSEC_NO_HMAC */
#ifndef XMLSEC_NO_SHA1
gXmlSecGnuTLSFunctions->transformSha1GetKlass = xmlSecGnuTLSTransformSha1GetKlass;
#endif /* XMLSEC_NO_SHA1 */
/**
* High level routines form xmlsec command line utility
*/
gXmlSecGnuTLSFunctions->cryptoAppInit = xmlSecGnuTLSAppInit;
gXmlSecGnuTLSFunctions->cryptoAppShutdown = xmlSecGnuTLSAppShutdown;
gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrInit = xmlSecGnuTLSAppDefaultKeysMngrInit;
gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrAdoptKey = xmlSecGnuTLSAppDefaultKeysMngrAdoptKey;
gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrLoad = xmlSecGnuTLSAppDefaultKeysMngrLoad;
gXmlSecGnuTLSFunctions->cryptoAppDefaultKeysMngrSave = xmlSecGnuTLSAppDefaultKeysMngrSave;
#ifndef XMLSEC_NO_X509
gXmlSecGnuTLSFunctions->cryptoAppKeysMngrCertLoad = xmlSecGnuTLSAppKeysMngrCertLoad;
gXmlSecGnuTLSFunctions->cryptoAppPkcs12Load = xmlSecGnuTLSAppPkcs12Load;
gXmlSecGnuTLSFunctions->cryptoAppKeyCertLoad = xmlSecGnuTLSAppKeyCertLoad;
#endif /* XMLSEC_NO_X509 */
gXmlSecGnuTLSFunctions->cryptoAppKeyLoad = xmlSecGnuTLSAppKeyLoad;
gXmlSecGnuTLSFunctions->cryptoAppDefaultPwdCallback = (void*)xmlSecGnuTLSAppGetDefaultPwdCallback();
return(gXmlSecGnuTLSFunctions);
}
/**
* xmlSecGnuTLSInit:
*
* XMLSec library specific crypto engine initialization.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSInit (void) {
/* Check loaded xmlsec library version */
if(xmlSecCheckVersionExact() != 1) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecCheckVersionExact",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* register our klasses */
if(xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms(xmlSecCryptoGetFunctions_gnutls()) < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecCryptoDLFunctionsRegisterKeyDataAndTransforms",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
return(0);
}
/**
* xmlSecGnuTLSShutdown:
*
* XMLSec library specific crypto engine shutdown.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSShutdown(void) {
return(0);
}
/**
* xmlSecGnuTLSKeysMngrInit:
* @mngr: the pointer to keys manager.
*
* Adds GnuTLS specific key data stores in keys manager.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSKeysMngrInit(xmlSecKeysMngrPtr mngr) {
xmlSecAssert2(mngr != NULL, -1);
/* TODO: add key data stores */
return(0);
}
/**
* xmlSecGnuTLSGenerateRandom:
* @buffer: the destination buffer.
* @size: the numer of bytes to generate.
*
* Generates @size random bytes and puts result in @buffer.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSGenerateRandom(xmlSecBufferPtr buffer, xmlSecSize size) {
int ret;
xmlSecAssert2(buffer != NULL, -1);
xmlSecAssert2(size > 0, -1);
ret = xmlSecBufferSetSize(buffer, size);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecBufferSetSize",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
"size=%d", size);
return(-1);
}
/* get random data */
gcry_randomize(xmlSecBufferGetData(buffer), size, GCRY_STRONG_RANDOM);
return(0);
}
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