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
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2008 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
/* $Core */
#include "inspircd.h"
#include "socket.h"
#include "socketengine.h"
/* Private static member data must be initialized in this manner */
unsigned int ListenSocket::socketcount = 0;
sockaddr* ListenSocket::sock_us = NULL;
sockaddr* ListenSocket::client = NULL;
sockaddr* ListenSocket::raddr = NULL;
ListenSocket::ListenSocket(InspIRCd* Instance, int port, char* addr) : ServerInstance(Instance), desc("plaintext"), bind_addr(addr), bind_port(port)
{
this->SetFd(irc::sockets::OpenTCPSocket(addr));
if (this->GetFd() > -1)
{
if (!Instance->BindSocket(this->fd,port,addr))
this->fd = -1;
#ifdef IPV6
if ((!*addr) || (strchr(addr,':')))
this->family = AF_INET6;
else
#endif
this->family = AF_INET;
Instance->SE->AddFd(this);
}
/* Saves needless allocations */
if (socketcount == 0)
{
/* All instances of ListenSocket share these, so reference count it */
ServerInstance->Logs->Log("SOCKET", DEBUG,"Allocate sockaddr structures");
sock_us = new sockaddr[2];
client = new sockaddr[2];
raddr = new sockaddr[2];
}
socketcount++;
}
ListenSocket::~ListenSocket()
{
if (this->GetFd() > -1)
{
ServerInstance->SE->DelFd(this);
ServerInstance->Logs->Log("SOCKET", DEBUG,"Shut down listener on fd %d", this->fd);
if (ServerInstance->SE->Shutdown(this, 2) || ServerInstance->SE->Close(this))
ServerInstance->Logs->Log("SOCKET", DEBUG,"Failed to cancel listener: %s", strerror(errno));
this->fd = -1;
}
socketcount--;
if (socketcount == 0)
{
delete[] sock_us;
delete[] client;
delete[] raddr;
}
}
/* Just seperated into another func for tidiness really.. */
void ListenSocket::AcceptInternal()
{
ServerInstance->Logs->Log("SOCKET",DEBUG,"HandleEvent for Listensoket");
socklen_t uslen, length; // length of our port number
int incomingSockfd;
#ifdef IPV6
if (this->family == AF_INET6)
{
uslen = sizeof(sockaddr_in6);
length = sizeof(sockaddr_in6);
}
else
#endif
{
uslen = sizeof(sockaddr_in);
length = sizeof(sockaddr_in);
}
incomingSockfd = ServerInstance->SE->Accept(this, (sockaddr*)client, &length);
if (incomingSockfd < 0 ||
ServerInstance->SE->GetSockName(this, sock_us, &uslen) == -1)
{
ServerInstance->SE->Shutdown(incomingSockfd, 2);
ServerInstance->SE->Close(incomingSockfd);
ServerInstance->stats->statsRefused++;
return;
}
static char buf[MAXBUF];
static char target[MAXBUF];
*target = *buf = '\0';
#ifdef IPV6
if (this->family == AF_INET6)
{
inet_ntop(AF_INET6, &((const sockaddr_in6*)client)->sin6_addr, buf, sizeof(buf));
socklen_t raddrsz = sizeof(sockaddr_in6);
if (getsockname(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
inet_ntop(AF_INET6, &((const sockaddr_in6*)raddr)->sin6_addr, target, sizeof(target));
else
ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
}
else
#endif
{
inet_ntop(AF_INET, &((const sockaddr_in*)client)->sin_addr, buf, sizeof(buf));
socklen_t raddrsz = sizeof(sockaddr_in);
if (getsockname(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
inet_ntop(AF_INET, &((const sockaddr_in*)raddr)->sin_addr, target, sizeof(target));
else
ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
}
ServerInstance->SE->NonBlocking(incomingSockfd);
ServerInstance->stats->statsAccept++;
this->OnAcceptReady(target, incomingSockfd);
}
void ListenSocket::HandleEvent(EventType e, int err)
{
switch (e)
{
case EVENT_ERROR:
ServerInstance->Logs->Log("SOCKET",DEFAULT,"ListenSocket::HandleEvent() received a socket engine error event! well shit! '%s'", strerror(err));
break;
case EVENT_WRITE:
ServerInstance->Logs->Log("SOCKET",DEBUG,"*** BUG *** ListenSocket::HandleEvent() got a WRITE event!!!");
break;
case EVENT_READ:
this->AcceptInternal();
break;
}
}
void ListenSocket::OnAcceptReady(const std::string &ipconnectedto, int nfd)
{
ServerInstance->Users->AddUser(ServerInstance, nfd, bind_port, false, this->family, client, ipconnectedto);
}
|
