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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_TLS_WRAP_H_
#define SRC_TLS_WRAP_H_
#include "node.h"
#include "queue.h"
#include "stream_wrap.h"
#include "v8.h"
#include <openssl/ssl.h>
namespace node {
// Forward-declarations
class NodeBIO;
class WriteWrap;
namespace crypto {
class SecureContext;
}
class TLSCallbacks : public StreamWrapCallbacks {
public:
enum Kind {
kTLSClient,
kTLSServer
};
static void Initialize(v8::Handle<v8::Object> target);
int DoWrite(WriteWrap* w,
uv_buf_t* bufs,
size_t count,
uv_stream_t* send_handle,
uv_write_cb cb);
void AfterWrite(WriteWrap* w);
uv_buf_t DoAlloc(uv_handle_t* handle, size_t suggested_size);
void DoRead(uv_stream_t* handle,
ssize_t nread,
uv_buf_t buf,
uv_handle_type pending);
int DoShutdown(ShutdownWrap* req_wrap, uv_shutdown_cb cb);
protected:
static const int kClearOutChunkSize = 1024;
static const size_t kMaxTLSFrameLen = 16 * 1024 + 5;
// ClientHello parser types
enum ParseState {
kParseWaiting,
kParseTLSHeader,
kParseSSLHeader,
kParsePaused,
kParseEnded
};
struct HelloState {
ParseState state;
size_t frame_len;
size_t body_offset;
};
// Write callback queue's item
class WriteItem {
public:
WriteItem(WriteWrap* w, uv_write_cb cb) : w_(w), cb_(cb) {
}
~WriteItem() {
w_ = NULL;
cb_ = NULL;
}
WriteWrap* w_;
uv_write_cb cb_;
QUEUE member_;
};
TLSCallbacks(Kind kind, v8::Handle<v8::Object> sc, StreamWrapCallbacks* old);
~TLSCallbacks();
static void SSLInfoCallback(const SSL* ssl_, int where, int ret);
void InitSSL();
void EncOut();
static void EncOutCb(uv_write_t* req, int status);
bool ClearIn();
void ClearOut();
void InvokeQueued(int status);
void ParseClientHello();
inline void ParseFinish() {
hello_.state = kParseEnded;
Cycle();
}
inline void Cycle() {
ClearIn();
ClearOut();
EncOut();
}
v8::Handle<v8::Value> GetSSLError(int status, int* err);
static void Wrap(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Start(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetPeerCertificate(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetSession(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetSession(const v8::FunctionCallbackInfo<v8::Value>& args);
static void LoadSession(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetCurrentCipher(const v8::FunctionCallbackInfo<v8::Value>& args);
static void VerifyError(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetVerifyMode(const v8::FunctionCallbackInfo<v8::Value>& args);
static void IsSessionReused(const v8::FunctionCallbackInfo<v8::Value>& args);
static void EnableSessionCallbacks(
const v8::FunctionCallbackInfo<v8::Value>& args);
// TLS Session API
static SSL_SESSION* GetSessionCallback(SSL* s,
unsigned char* key,
int len,
int* copy);
static int NewSessionCallback(SSL* s, SSL_SESSION* sess);
#ifdef OPENSSL_NPN_NEGOTIATED
static void GetNegotiatedProto(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetNPNProtocols(const v8::FunctionCallbackInfo<v8::Value>& args);
static int AdvertiseNextProtoCallback(SSL* s,
const unsigned char** data,
unsigned int* len,
void* arg);
static int SelectNextProtoCallback(SSL* s,
unsigned char** out,
unsigned char* outlen,
const unsigned char* in,
unsigned int inlen,
void* arg);
#endif // OPENSSL_NPN_NEGOTIATED
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
static void GetServername(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetServername(const v8::FunctionCallbackInfo<v8::Value>& args);
static int SelectSNIContextCallback(SSL* s, int* ad, void* arg);
#endif // SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
inline v8::Local<v8::Object> object() {
return PersistentToLocal(node_isolate, persistent());
}
inline v8::Persistent<v8::Object>& persistent() {
return object_;
}
Kind kind_;
crypto::SecureContext* sc_;
v8::Persistent<v8::Object> sc_handle_;
v8::Persistent<v8::Object> object_;
SSL* ssl_;
BIO* enc_in_;
BIO* enc_out_;
NodeBIO* clear_in_;
uv_write_t write_req_;
size_t write_size_;
size_t write_queue_size_;
QUEUE write_item_queue_;
WriteItem* pending_write_item_;
HelloState hello_;
int hello_body_;
bool started_;
bool established_;
bool shutdown_;
bool session_callbacks_;
SSL_SESSION* next_sess_;
#ifdef OPENSSL_NPN_NEGOTIATED
v8::Persistent<v8::Object> npn_protos_;
v8::Persistent<v8::Value> selected_npn_proto_;
#endif // OPENSSL_NPN_NEGOTIATED
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
v8::Persistent<v8::String> servername_;
v8::Persistent<v8::Value> sni_context_;
#endif // SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
};
} // namespace node
#endif // SRC_TLS_WRAP_H_
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