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/*
* plugins/authdata/saml_server/saml_krb.h
*
* Copyright 2009 by the Massachusetts Institute of Technology.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* SAML Kerberos helpers
*/
#ifndef SAML_KRB_H_
#define SAML_KRB_H_ 1
extern "C" {
#include <k5-int.h>
#include <krb5/authdata_plugin.h>
#include <kdb.h>
#include <kdb_ext.h>
}
#include <saml/SAMLConfig.h>
#include <saml/saml2/metadata/Metadata.h>
#include <saml/saml2/metadata/MetadataProvider.h>
#include <saml/saml2/metadata/MetadataCredentialCriteria.h>
#include <saml/signature/SignatureProfileValidator.h>
#include <saml/util/SAMLConstants.h>
#include <xmltooling/logging.h>
#include <xmltooling/XMLToolingConfig.h>
#include <xmltooling/security/SignatureTrustEngine.h>
#include <xmltooling/security/OpenSSLCredential.h>
#include <xmltooling/signature/Signature.h>
#include <xmltooling/signature/SignatureValidator.h>
#include <xmltooling/util/XMLHelper.h>
#include <xsec/framework/XSECException.hpp>
#include <xsec/dsig/DSIGKeyInfoValue.hpp>
#include <xsec/dsig/DSIGKeyInfoName.hpp>
#include <xsec/enc/XSECCryptoKeyHMAC.hpp>
#include <xsec/enc/XSECCryptoException.hpp>
#include <xsec/enc/OpenSSL/OpenSSLCryptoKeyHMAC.hpp>
#include <xercesc/util/Base64.hpp>
using namespace xmlsignature;
using namespace xmlconstants;
using namespace xmltooling::logging;
using namespace xmltooling;
using namespace samlconstants;
using namespace opensaml::saml2md;
using namespace opensaml::saml2;
using namespace opensaml;
using namespace xercesc;
using namespace std;
#define SAML_KRB_VERIFY_SESSION_KEY 0x1 /* signed with session key */
#define SAML_KRB_VERIFY_TRUSTENGINE 0x2 /* signed with trusted key */
#define SAML_KRB_VERIFY_KDC_VOUCHED 0x4 /* extracted from TGT */
#define SAML_KRB_USAGE_SESSION_KEY 1 /* derive from session key */
#define SAML_KRB_USAGE_SERVER_KEY 2 /* derive from server key */
/* saml_util.cpp */
krb5_error_code
saml_krb_derive_key(krb5_context context,
const krb5_keyblock *basekey,
unsigned int usage,
XSECCryptoKey **pXMLKey);
krb5_boolean
saml_krb_is_saml_principal(krb5_context context,
krb5_const_principal principal);
krb5_error_code
saml_krb_unparse_name_xmlch(krb5_context context,
krb5_const_principal name,
XMLCh **unicodePrincipal,
int flags = 0);
krb5_error_code
saml_krb_parse_name_xmlch(krb5_context context,
const XMLCh *unicodePrincipal,
krb5_principal *name,
int flags = 0);
krb5_error_code
saml_krb_build_nameid(krb5_context context,
krb5_const_principal principal,
NameID **pNameID);
krb5_boolean
saml_krb_compare_principal(krb5_context context,
const XMLCh *unicodePrincipal,
krb5_const_principal princ1);
krb5_error_code
saml_krb_map_subject(krb5_context context,
Subject *subject,
krb5_principal *pMappedPrincipal);
krb5_boolean
saml_krb_compare_issuer(krb5_context context,
Issuer *asserted,
Issuer *actual);
krb5_boolean
saml_krb_compare_subject(krb5_context context,
Subject *asserted,
Subject *actual);
krb5_error_code
saml_krb_bind_subject_kdb(krb5_context context,
krb5_db_entry *entry,
Issuer *issuer,
Subject *subject);
krb5_timestamp
saml_krb_get_authtime(krb5_context context,
const saml2::Assertion *assertion);
krb5_error_code
saml_krb_build_principal_keyinfo(krb5_context context,
krb5_const_principal principal,
KeyInfo **pKeyInfo);
krb5_error_code
saml_krb_confirm_keyinfo(krb5_context context,
const saml2::SubjectConfirmation *conf,
krb5_const_principal principal,
krb5_boolean *pConfirmed);
krb5_error_code
saml_krb_confirm_subject(krb5_context context,
const saml2::Subject *subject,
krb5_const_principal principal,
krb5_timestamp authtime,
krb5_boolean *pConfirmed,
krb5_boolean *pBound);
krb5_error_code
saml_krb_verify_recipient(krb5_context context,
const saml2::Assertion *assertion,
krb5_const_principal spn,
krb5_boolean *pValid);
krb5_error_code
saml_krb_verify_signature(krb5_context context,
Signature *signature,
const krb5_keyblock *key,
unsigned int flags,
krb5_boolean bound,
krb5_boolean *pValid);
krb5_error_code
saml_krb_bind_subject(krb5_context context,
Issuer *issuer,
Subject *subject,
krb5_const_principal client_princ,
krb5_db_entry *client,
krb5_boolean *pBound,
krb5_principal *pMappedPrincipal = NULL);
krb5_error_code
saml_krb_verify(krb5_context context,
saml2::Assertion *assertion,
const krb5_keyblock *key,
krb5_const_principal client_princ,
krb5_db_entry *client,
krb5_const_principal server,
krb5_timestamp authtime,
unsigned int flags,
krb5_boolean *pValid,
krb5_principal *pMappedPrincipal = NULL);
krb5_error_code
saml_krb_decode_assertion(krb5_context context,
krb5_data *data,
saml2::Assertion **pAssertion);
krb5_error_code
saml_krb_decode_assertion(krb5_context context,
krb5_authdata *data,
saml2::Assertion **pAssertion);
/* Helper for transcoding krb5_data objects */
class auto_ptr_krb5_data {
MAKE_NONCOPYABLE(auto_ptr_krb5_data);
public:
auto_ptr_krb5_data() : m_buf(NULL) {
}
auto_ptr_krb5_data(const krb5_data *src) {
m_buf = new XMLCh[src->length + 1];
XMLString::transcode(src->data, m_buf, src->length);
}
~auto_ptr_krb5_data() {
xercesc::XMLString::release(&m_buf);
}
const XMLCh* get() const {
return m_buf;
}
XMLCh* release() {
XMLCh *temp = m_buf; m_buf = NULL; return temp;
}
private:
XMLCh *m_buf;
};
/* saml_trust.cpp */
krb5_error_code
saml_krb_verify_trustengine(krb5_context context,
Signature *signature,
const krb5_keyblock *key,
krb5_const_principal server,
unsigned int flags,
krb5_boolean bound,
krb5_boolean *pValid);
#endif /* SAML_KRB_H_ */
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