tenfourfox/media/mtransport/dtlsidentity.h

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2017-04-19 07:56:45 +00:00
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef dtls_identity_h__
#define dtls_identity_h__
#include <string>
#include "m_cpp_utils.h"
#include "mozilla/RefPtr.h"
#include "nsISupportsImpl.h"
#include "sslt.h"
#include "ScopedNSSTypes.h"
// All code in this module requires NSS to be live.
// Callers must initialize NSS and implement the nsNSSShutdownObject
// protocol.
namespace mozilla {
class DtlsIdentity final {
public:
// This constructor takes ownership of privkey and cert.
DtlsIdentity(SECKEYPrivateKey *privkey,
CERTCertificate *cert,
SSLKEAType authType)
: private_key_(privkey), cert_(cert), auth_type_(authType) {}
// This is only for use in tests, or for external linkage. It makes a (bad)
// instance of this class.
static RefPtr<DtlsIdentity> Generate();
// These don't create copies or transfer ownership. If you want these to live
// on, make a copy.
CERTCertificate *cert() const { return cert_; }
SECKEYPrivateKey *privkey() const { return private_key_; }
// Note: this uses SSLKEAType because that is what the libssl API requires.
// This is a giant confusing mess, but libssl indexes certificates based on a
// key exchange type, not authentication type (as you might have reasonably
// expected).
SSLKEAType auth_type() const { return auth_type_; }
nsresult ComputeFingerprint(const std::string algorithm,
uint8_t *digest,
size_t size,
size_t *digest_length) const;
static nsresult ComputeFingerprint(const CERTCertificate *cert,
const std::string algorithm,
uint8_t *digest,
size_t size,
size_t *digest_length);
static const std::string DEFAULT_HASH_ALGORITHM;
enum {
HASH_ALGORITHM_MAX_LENGTH = 64
};
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DtlsIdentity)
private:
~DtlsIdentity();
DISALLOW_COPY_ASSIGN(DtlsIdentity);
ScopedSECKEYPrivateKey private_key_;
CERTCertificate *cert_; // TODO: Using a smart pointer here causes link
// errors.
SSLKEAType auth_type_;
};
} // close namespace
#endif