1 /*
2  * ngIRCd -- The Next Generation IRC Daemon
3  * Copyright (c)2001-2008 by Alexander Barton (alex@barton.de)
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  * Please read the file COPYING, README and AUTHORS for more information.
10  *
11  * Connection management (header)
12  */
13 
14 
15 #ifndef __conn_h__
16 #define __conn_h__
17 
18 
19 #include <time.h>			/* for time_t, see below */
20 
21 
22 #define CONN_ISCLOSING		1	/* Conn_Close() already called */
23 #define CONN_ISCONNECTING	2	/* connect() in progress */
24 #define CONN_RFC1459		4	/* RFC 1459 compatibility mode */
25 #ifdef ZLIB
26 #define CONN_ZIP		8	/* zlib compressed link */
27 #endif
28 
29 #include "conf-ssl.h"
30 
31 #ifdef SSL_SUPPORT
32 #define CONN_SSL_CONNECT	8	/* wait for ssl connect to finish */
33 #define CONN_SSL		16	/* this connection is SSL encrypted */
34 #define CONN_SSL_WANT_WRITE	32	/* SSL/TLS library needs to write protocol data */
35 #define CONN_SSL_WANT_READ	64	/* SSL/TLS library needs to read protocol data */
36 #endif
37 typedef int CONN_ID;
38 
39 #include "client.h"
40 
41 #ifdef CONN_MODULE
42 
43 #include "defines.h"
44 #include "resolve.h"
45 #include "array.h"
46 #include "tool.h"
47 #include "ng_ipaddr.h"
48 
49 #ifdef ZLIB
50 #include <zlib.h>
51 typedef struct _ZipData
52 {
53 	z_stream in;			/* "Handle" for input stream */
54 	z_stream out;			/* "Handle" for output stream */
55 	array rbuf;			/* Read buffer (compressed) */
56 	array wbuf;			/* Write buffer (uncompressed) */
57 	long bytes_in, bytes_out;	/* Counter for statistics (uncompressed!) */
58 } ZIPDATA;
59 #endif /* ZLIB */
60 
61 typedef struct _Connection
62 {
63 	int sock;			/* Socket handle */
64 	ng_ipaddr_t addr;		/* Client address */
65 	RES_STAT res_stat;		/* Status of resolver process */
66 	char host[HOST_LEN];		/* Hostname */
67 	array rbuf;			/* Read buffer */
68 	array wbuf;			/* Write buffer */
69 	time_t signon;			/* Signon ("connect") time */
70 	time_t lastdata;		/* Last activity */
71 	time_t lastping;		/* Last PING */
72 	time_t lastprivmsg;		/* Last PRIVMSG */
73 	time_t delaytime;		/* Ignore link ("penalty") */
74 	long bytes_in, bytes_out;	/* Received and sent bytes */
75 	long msg_in, msg_out;		/* Received and sent IRC messages */
76 	int flag;			/* Flag (see "irc-write" module) */
77 	UINT16 options;			/* Link options / connection state */
78 	CLIENT *client;			/* pointer to client structure */
79 #ifdef ZLIB
80 	ZIPDATA zip;			/* Compression information */
81 #endif  /* ZLIB */
82 #ifdef SSL_SUPPORT
83 	struct ConnSSL_State	ssl_state;	/* SSL/GNUTLS state information */
84 #endif
85 } CONNECTION;
86 
87 GLOBAL CONNECTION *My_Connections;
88 GLOBAL CONN_ID Pool_Size;
89 GLOBAL long WCounter;
90 
91 #endif /* CONN_MODULE */
92 
93 
94 GLOBAL void Conn_Init PARAMS((void ));
95 GLOBAL void Conn_Exit PARAMS(( void ));
96 
97 GLOBAL unsigned int Conn_InitListeners PARAMS(( void ));
98 GLOBAL void Conn_ExitListeners PARAMS(( void ));
99 
100 GLOBAL void Conn_Handler PARAMS(( void ));
101 
102 GLOBAL bool Conn_WriteStr PARAMS(( CONN_ID Idx, char *Format, ... ));
103 
104 GLOBAL void Conn_Close PARAMS(( CONN_ID Idx, char *LogMsg, char *FwdMsg, bool InformClient ));
105 
106 GLOBAL void Conn_SyncServerStruct PARAMS(( void ));
107 
108 GLOBAL CLIENT* Conn_GetClient PARAMS((CONN_ID i));
109 #ifdef SSL_SUPPORT
110 GLOBAL bool Conn_GetCipherInfo PARAMS((CONN_ID Idx, char *buf, size_t len));
111 GLOBAL bool Conn_UsesSSL PARAMS((CONN_ID Idx));
112 #else
113 static inline bool Conn_UsesSSL(UNUSED CONN_ID Idx) { return false; }
114 #endif
115 #endif
116 
117 /* -eof- */