1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
// 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_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "node.h"
#include "node_crypto.h" // SSLWrap
#include "async-wrap.h"
#include "env.h"
#include "stream_wrap.h"
#include "util.h"
#include "v8.h"
#include <openssl/ssl.h>
namespace node {
// Forward-declarations
class NodeBIO;
class WriteWrap;
namespace crypto {
class SecureContext;
}
class TLSWrap : public AsyncWrap,
public crypto::SSLWrap<TLSWrap>,
public StreamBase {
public:
~TLSWrap() override;
static void Initialize(v8::Local<v8::Object> target,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context);
void* Cast() override;
int GetFD() override;
bool IsAlive() override;
bool IsClosing() override;
// JavaScript functions
int ReadStart() override;
int ReadStop() override;
int DoShutdown(ShutdownWrap* req_wrap) override;
int DoWrite(WriteWrap* w,
uv_buf_t* bufs,
size_t count,
uv_stream_t* send_handle) override;
const char* Error() const override;
void ClearError() override;
void NewSessionDoneCb();
size_t self_size() const override { return sizeof(*this); }
protected:
static const int kClearOutChunkSize = 16384;
// Maximum number of bytes for hello parser
static const int kMaxHelloLength = 16384;
// Usual ServerHello + Certificate size
static const int kInitialClientBufferLength = 4096;
// Maximum number of buffers passed to uv_write()
static const int kSimultaneousBufferCount = 10;
// Write callback queue's item
class WriteItem {
public:
explicit WriteItem(WriteWrap* w) : w_(w) {
}
~WriteItem() {
w_ = nullptr;
}
WriteWrap* w_;
ListNode<WriteItem> member_;
};
TLSWrap(Environment* env,
Kind kind,
StreamBase* stream,
crypto::SecureContext* sc);
static void SSLInfoCallback(const SSL* ssl_, int where, int ret);
void InitSSL();
void EncOut();
static void EncOutCb(WriteWrap* req_wrap, int status);
bool ClearIn();
void ClearOut();
void MakePending();
bool InvokeQueued(int status, const char* error_str = nullptr);
inline void Cycle() {
// Prevent recursion
if (++cycle_depth_ > 1)
return;
for (; cycle_depth_ > 0; cycle_depth_--) {
ClearIn();
ClearOut();
EncOut();
}
}
AsyncWrap* GetAsyncWrap() override;
bool IsIPCPipe() override;
// Resource implementation
static void OnAfterWriteImpl(WriteWrap* w, void* ctx);
static void OnAllocImpl(size_t size, uv_buf_t* buf, void* ctx);
static void OnReadImpl(ssize_t nread,
const uv_buf_t* buf,
uv_handle_type pending,
void* ctx);
static void OnAfterWriteSelf(WriteWrap* w, void* ctx);
static void OnAllocSelf(size_t size, uv_buf_t* buf, void* ctx);
static void OnReadSelf(ssize_t nread,
const uv_buf_t* buf,
uv_handle_type pending,
void* ctx);
void DoRead(ssize_t nread, const uv_buf_t* buf, uv_handle_type pending);
// If |msg| is not nullptr, caller is responsible for calling `delete[] *msg`.
v8::Local<v8::Value> GetSSLError(int status, int* err, const char** msg);
static void OnClientHelloParseEnd(void* arg);
static void Wrap(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Receive(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Start(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetVerifyMode(const v8::FunctionCallbackInfo<v8::Value>& args);
static void EnableSessionCallbacks(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void EnableCertCb(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void DestroySSL(const v8::FunctionCallbackInfo<v8::Value>& args);
#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
crypto::SecureContext* sc_;
StreamBase* stream_;
BIO* enc_in_;
BIO* enc_out_;
NodeBIO* clear_in_;
size_t write_size_;
typedef ListHead<WriteItem, &WriteItem::member_> WriteItemList;
WriteItemList write_item_queue_;
WriteItemList pending_write_items_;
bool started_;
bool established_;
bool shutdown_;
const char* error_;
int cycle_depth_;
// If true - delivered EOF to the js-land, either after `close_notify`, or
// after the `UV_EOF` on socket.
bool eof_;
};
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_TLS_WRAP_H_
|