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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/*
Copyright (C) 2009 Red Hat, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_REDPEER
#define _H_REDPEER
#include <openssl/ssl.h>
#include <openssl/err.h>
#include "common.h"
#include <spice/protocol.h>
#include "process_loop.h"
#include "threads.h"
#include "platform_utils.h"
class RedPeer: protected EventSources::Socket {
public:
RedPeer();
virtual ~RedPeer();
class InMessage;
class CompundInMessage;
class OutMessage;
class DisconnectedException {};
class HostAuthOptions {
public:
enum Type {
HOST_AUTH_OP_PUBKEY = 1,
HOST_AUTH_OP_NAME = (1 << 1),
HOST_AUTH_OP_SUBJECT = (1 << 2),
};
typedef std::vector<uint8_t> PublicKey;
typedef std::pair<std::string, std::string> CertFieldValuePair;
typedef std::list<CertFieldValuePair> CertFieldValueList;
HostAuthOptions() : type_flags(0) {}
public:
int type_flags;
PublicKey host_pubkey;
CertFieldValueList host_subject;
std::string CA_file;
};
class ConnectionOptions {
public:
enum Type {
CON_OP_INVALID,
CON_OP_SECURE,
CON_OP_UNSECURE,
CON_OP_BOTH,
};
ConnectionOptions(Type in_type, int in_port, int in_sport,
const HostAuthOptions& in_host_auth)
: type (in_type)
, unsecure_port (in_port)
, secure_port (in_sport)
, host_auth (in_host_auth)
{
}
virtual ~ConnectionOptions() {}
bool allow_secure() const
{
return (type == CON_OP_BOTH || type == CON_OP_SECURE) && secure_port != -1;
}
bool allow_unsecure() const
{
return (type == CON_OP_BOTH || type == CON_OP_UNSECURE) && unsecure_port != -1;
}
public:
Type type;
int unsecure_port;
int secure_port;
HostAuthOptions host_auth; // for secure connection
};
void connect_unsecure(const char* host, int port);
void connect_secure(const ConnectionOptions& options, const char* host);
void disconnect();
void swap(RedPeer* other);
void close();
void enable() { _shut = false;}
virtual CompundInMessage* recive();
uint32_t send(OutMessage& message);
uint32_t recive(uint8_t* buf, uint32_t size);
uint32_t send(uint8_t* buf, uint32_t size);
static uint32_t host_by_name(const char *host);
protected:
virtual void on_event() {}
virtual int get_socket() { return _peer;}
static bool x509_cert_host_name_compare(const char *cert_name, int cert_name_size,
const char *host_name);
static bool verify_pubkey(X509* cert, const HostAuthOptions::PublicKey& key);
static bool verify_host_name(X509* cert, const char* host_name);
static bool verify_subject(X509* cert, const HostAuthOptions::CertFieldValueList& subject);
static int ssl_verify_callback(int preverify_ok, X509_STORE_CTX *ctx);
private:
void shutdown();
void cleanup();
private:
SOCKET _peer;
Mutex _lock;
bool _shut;
uint64_t _serial;
SSL_CTX *_ctx;
SSL *_ssl;
};
class RedPeer::InMessage {
public:
InMessage(uint16_t type, uint32_t size, uint8_t * data)
: _type (type)
, _size (size)
, _data (data)
{
}
virtual ~InMessage() {}
uint16_t type() { return _type;}
uint8_t* data() { return _data;}
virtual uint32_t size() { return _size;}
protected:
uint16_t _type;
uint32_t _size;
uint8_t* _data;
};
class RedPeer::CompundInMessage: public RedPeer::InMessage {
public:
CompundInMessage(uint64_t _serial, uint16_t type, uint32_t size, uint32_t sub_list)
: InMessage(type, size, new uint8_t[size])
, _refs (1)
, _serial (_serial)
, _sub_list (sub_list)
{
}
RedPeer::InMessage* ref() { _refs++; return this;}
void unref() {if (!--_refs) delete this;}
uint64_t serial() { return _serial;}
uint32_t sub_list() { return _sub_list;}
virtual uint32_t size() { return _sub_list ? _sub_list : _size;}
uint32_t compund_size() {return _size;}
protected:
virtual ~CompundInMessage() { delete[] _data;}
private:
int _refs;
uint64_t _serial;
uint32_t _sub_list;
};
class RedPeer::OutMessage {
public:
OutMessage(uint32_t type, uint32_t size);
virtual ~OutMessage();
SpiceDataHeader& header() { return *(SpiceDataHeader *)_data;}
uint8_t* data() { return _data + sizeof(SpiceDataHeader);}
void resize(uint32_t size);
private:
uint32_t message_size() { return header().size + sizeof(SpiceDataHeader);}
uint8_t* base() { return _data;}
private:
uint8_t* _data;
uint32_t _size;
friend class RedPeer;
friend class RedChannel;
};
#endif
|
