1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
18 #include "configreader.h"
21 #include "inspstring.h"
22 #include "helperfuncs.h"
23 #include "socketengine.h"
26 extern InspIRCd* ServerInstance;
27 extern ServerConfig* Config;
29 extern int openSockfd[MAX_DESCRIPTORS];
31 /** This will bind a socket to a port. It works for UDP/TCP.
32 * If a hostname is given to bind to, the function will first
33 * attempt to resolve the hostname, then bind to the IP the
34 * hostname resolves to. This is a blocking lookup blocking for
35 * a maximum of one second before it times out, using the DNS
36 * server specified in the configuration file.
38 bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr)
40 memset(&server,0,sizeof(server));
42 bool resolved = false;
43 char resolved_addr[128];
48 if (*addr && !inet_aton(addr,&addy))
50 /* If they gave a hostname, bind to the IP it resolves to */
51 if (CleanAndResolve(resolved_addr, addr, true))
53 inet_aton(resolved_addr,&addy);
54 log(DEFAULT,"Resolved binding '%s' -> '%s'",addr,resolved_addr);
55 server.sin_addr = addy;
60 log(DEFAULT,"WARNING: Could not resolve '%s' to an IP for binding to on port %d",addr,port);
64 server.sin_family = AF_INET;
69 server.sin_addr.s_addr = htonl(INADDR_ANY);
73 server.sin_addr = addy;
76 server.sin_port = htons(port);
77 if (bind(sockfd,(struct sockaddr*)&server,sizeof(server)) < 0)
83 log(DEBUG,"Bound port %s:%d",*addr ? addr : "*",port);
84 if (listen(sockfd, Config->MaxConn) == -1)
86 log(DEFAULT,"ERROR in listen(): %s",strerror(errno));
103 struct linger linger = { 0 };
105 if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0)
107 log(DEFAULT,"Error creating TCP socket: %s",strerror(errno));
112 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
113 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
116 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &linger,sizeof(linger));
121 bool HasPort(int port, char* addr)
123 for (int count = 0; count < ServerInstance->stats->BoundPortCount; count++)
125 if ((port == Config->ports[count]) && (!strcasecmp(Config->addrs[count],addr)))
133 int BindPorts(bool bail)
135 char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
136 insp_sockaddr client, server;
137 int clientportcount = 0;
138 int BoundPortCount = 0;
142 int InitialPortCount = ServerInstance->stats->BoundPortCount;
143 log(DEBUG,"Initial port count: %d",InitialPortCount);
145 for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
147 Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF);
148 Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF);
149 Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF);
151 if (((!*Type) || (!strcmp(Type,"clients"))) && (!HasPort(atoi(configToken),Addr)))
153 // modules handle server bind types now
154 Config->ports[clientportcount+InitialPortCount] = atoi(configToken);
158 strlcpy(Config->addrs[clientportcount+InitialPortCount],Addr,256);
160 log(DEBUG,"NEW binding %s:%s [%s] from config",Addr,configToken, Type);
163 int PortCount = clientportcount;
166 for (int count = InitialPortCount; count < InitialPortCount + PortCount; count++)
168 if ((openSockfd[count] = OpenTCPSocket()) == ERROR)
170 log(DEBUG,"Bad fd %d binding port [%s:%d]",openSockfd[count],Config->addrs[count],Config->ports[count]);
173 if (!BindSocket(openSockfd[count],client,server,Config->ports[count],Config->addrs[count]))
175 log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
179 /* Associate the new open port with a slot in the socket engine */
180 if (openSockfd[count] > -1)
182 ServerInstance->SE->AddFd(openSockfd[count],true,X_LISTEN);
187 return InitialPortCount + BoundPortCount;
191 log(DEBUG,"There is nothing new to bind!");
193 return InitialPortCount;
196 for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
198 Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF);
199 Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF);
200 Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF);
202 if ((!*Type) || (!strcmp(Type,"clients")))
204 // modules handle server bind types now
205 Config->ports[clientportcount] = atoi(configToken);
207 // If the client put bind "*", this is an unrealism.
208 // We don't actually support this as documented, but
209 // i got fed up of people trying it, so now it converts
210 // it to an empty string meaning the same 'bind to all'.
214 strlcpy(Config->addrs[clientportcount],Addr,256);
216 log(DEBUG,"Binding %s:%s [%s] from config",Addr,configToken, Type);
220 int PortCount = clientportcount;
222 for (int count = 0; count < PortCount; count++)
224 if ((openSockfd[BoundPortCount] = OpenTCPSocket()) == ERROR)
226 log(DEBUG,"Bad fd %d binding port [%s:%d]",openSockfd[BoundPortCount],Config->addrs[count],Config->ports[count]);
230 if (!BindSocket(openSockfd[BoundPortCount],client,server,Config->ports[count],Config->addrs[count]))
232 log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
236 /* well we at least bound to one socket so we'll continue */
241 /* if we didn't bind to anything then abort */
244 log(DEFAULT,"No ports bound, bailing!");
245 printf("\nERROR: Could not bind any of %d ports! Please check your configuration.\n\n", PortCount);
249 return BoundPortCount;