3ee4fe5a94
This CL adds an API to the SSL stream adapters and transport channels to get the SSL cipher that was negotiated with the remote peer. The previously approved CL https://webrtc-codereview.appspot.com/26009004/ was reverted in https://webrtc-codereview.appspot.com/40689004/ due to compilation issues while rolling into Chromium. As the new method has landed in Chromium in https://crrev.com/bc321c76ace6e1d5a03440e554ccb207159802ec, this should be safe to land here now. BUG=3976 R=pthatcher@webrtc.org Review URL: https://webrtc-codereview.appspot.com/37209004 Cr-Commit-Position: refs/heads/master@{#8343} git-svn-id: http://webrtc.googlecode.com/svn/trunk@8343 4adac7df-926f-26a2-2b94-8c16560cd09d
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
/*
|
|
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef WEBRTC_BASE_NSSSTREAMADAPTER_H_
|
|
#define WEBRTC_BASE_NSSSTREAMADAPTER_H_
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "nspr.h"
|
|
#include "nss.h"
|
|
#include "secmodt.h"
|
|
|
|
#include "webrtc/base/buffer.h"
|
|
#include "webrtc/base/nssidentity.h"
|
|
#include "webrtc/base/ssladapter.h"
|
|
#include "webrtc/base/sslstreamadapter.h"
|
|
#include "webrtc/base/sslstreamadapterhelper.h"
|
|
|
|
namespace rtc {
|
|
|
|
// Singleton
|
|
class NSSContext {
|
|
public:
|
|
NSSContext() {}
|
|
~NSSContext() {
|
|
}
|
|
|
|
static PK11SlotInfo *GetSlot() {
|
|
return Instance() ? Instance()->slot_: NULL;
|
|
}
|
|
|
|
static NSSContext *Instance();
|
|
static bool InitializeSSL(VerificationCallback callback);
|
|
static bool InitializeSSLThread();
|
|
static bool CleanupSSL();
|
|
|
|
private:
|
|
PK11SlotInfo *slot_; // The PKCS-11 slot
|
|
static bool initialized; // Was this initialized?
|
|
static NSSContext *global_nss_context; // The global context
|
|
};
|
|
|
|
|
|
class NSSStreamAdapter : public SSLStreamAdapterHelper {
|
|
public:
|
|
explicit NSSStreamAdapter(StreamInterface* stream);
|
|
virtual ~NSSStreamAdapter();
|
|
bool Init();
|
|
|
|
virtual StreamResult Read(void* data, size_t data_len,
|
|
size_t* read, int* error);
|
|
virtual StreamResult Write(const void* data, size_t data_len,
|
|
size_t* written, int* error);
|
|
void OnMessage(Message *msg);
|
|
|
|
virtual bool GetSslCipher(std::string* cipher);
|
|
|
|
// Key Extractor interface
|
|
virtual bool ExportKeyingMaterial(const std::string& label,
|
|
const uint8* context,
|
|
size_t context_len,
|
|
bool use_context,
|
|
uint8* result,
|
|
size_t result_len);
|
|
|
|
// DTLS-SRTP interface
|
|
virtual bool SetDtlsSrtpCiphers(const std::vector<std::string>& ciphers);
|
|
virtual bool GetDtlsSrtpCipher(std::string* cipher);
|
|
|
|
// Capabilities interfaces
|
|
static bool HaveDtls();
|
|
static bool HaveDtlsSrtp();
|
|
static bool HaveExporter();
|
|
static std::string GetDefaultSslCipher();
|
|
|
|
protected:
|
|
// Override SSLStreamAdapter
|
|
virtual void OnEvent(StreamInterface* stream, int events, int err);
|
|
|
|
// Override SSLStreamAdapterHelper
|
|
virtual int BeginSSL();
|
|
virtual void Cleanup();
|
|
virtual bool GetDigestLength(const std::string& algorithm, size_t* length) {
|
|
return NSSCertificate::GetDigestLength(algorithm, length);
|
|
}
|
|
|
|
private:
|
|
int ContinueSSL();
|
|
static SECStatus AuthCertificateHook(void *arg, PRFileDesc *fd,
|
|
PRBool checksig, PRBool isServer);
|
|
static SECStatus GetClientAuthDataHook(void *arg, PRFileDesc *fd,
|
|
CERTDistNames *caNames,
|
|
CERTCertificate **pRetCert,
|
|
SECKEYPrivateKey **pRetKey);
|
|
|
|
PRFileDesc *ssl_fd_; // NSS's SSL file descriptor
|
|
static bool initialized; // Was InitializeSSL() called?
|
|
bool cert_ok_; // Did we get and check a cert
|
|
std::vector<PRUint16> srtp_ciphers_; // SRTP cipher list
|
|
|
|
static PRDescIdentity nspr_layer_identity; // The NSPR layer identity
|
|
};
|
|
|
|
} // namespace rtc
|
|
|
|
#endif // WEBRTC_BASE_NSSSTREAMADAPTER_H_
|