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;
30 /** This will bind a socket to a port. It works for UDP/TCP.
31 * If a hostname is given to bind to, the function will first
32 * attempt to resolve the hostname, then bind to the IP the
33 * hostname resolves to. This is a blocking lookup blocking for
34 * a maximum of one second before it times out, using the DNS
35 * server specified in the configuration file.
37 bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr)
39 memset(&server,0,sizeof(server));
41 bool resolved = false;
42 char resolved_addr[128];
47 if (*addr && (insp_aton(addr,&addy) < 0))
49 /* If they gave a hostname, bind to the IP it resolves to */
50 if (CleanAndResolve(resolved_addr, addr, true, 1))
52 insp_aton(resolved_addr,&addy);
53 log(DEFAULT,"Resolved binding '%s' -> '%s'",addr,resolved_addr);
55 /* Todo: Deal with resolution of IPV6 */
56 server.sin6_addr = addy;
58 server.sin_addr = addy;
64 log(DEFAULT,"WARNING: Could not resolve '%s' to an IP for binding to on port %d",addr,port);
69 server.sin6_family = AF_FAMILY;
71 server.sin_family = AF_FAMILY;
78 memcpy(&addy, &server.sin6_addr, sizeof(in6_addr));
80 server.sin_addr.s_addr = htonl(INADDR_ANY);
86 memcpy(&addy, &server.sin6_addr, sizeof(in6_addr));
88 server.sin_addr = addy;
93 server.sin6_port = htons(port);
95 server.sin_port = htons(port);
97 if (bind(sockfd,(struct sockaddr*)&server,sizeof(server)) < 0)
103 log(DEBUG,"Bound port %s:%d",*addr ? addr : "*",port);
104 if (listen(sockfd, Config->MaxConn) == -1)
106 log(DEFAULT,"ERROR in listen(): %s",strerror(errno));
123 struct linger linger = { 0 };
125 if ((sockfd = socket (AF_FAMILY, SOCK_STREAM, 0)) < 0)
127 log(DEFAULT,"Error creating TCP socket: %s",strerror(errno));
132 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
133 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
136 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &linger,sizeof(linger));
141 bool HasPort(int port, char* addr)
143 for (unsigned long count = 0; count < ServerInstance->stats->BoundPortCount; count++)
145 if ((port == Config->ports[count]) && (!strcasecmp(Config->addrs[count],addr)))
153 int BindPorts(bool bail)
155 char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
156 insp_sockaddr client, server;
157 int clientportcount = 0;
158 int BoundPortCount = 0;
162 int InitialPortCount = ServerInstance->stats->BoundPortCount;
163 log(DEBUG,"Initial port count: %d",InitialPortCount);
165 for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
167 Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF);
168 Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF);
169 Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF);
171 if (((!*Type) || (!strcmp(Type,"clients"))) && (!HasPort(atoi(configToken),Addr)))
173 // modules handle server bind types now
174 Config->ports[clientportcount+InitialPortCount] = atoi(configToken);
178 strlcpy(Config->addrs[clientportcount+InitialPortCount],Addr,256);
180 log(DEBUG,"NEW binding %s:%s [%s] from config",Addr,configToken, Type);
183 int PortCount = clientportcount;
186 for (int count = InitialPortCount; count < InitialPortCount + PortCount; count++)
188 if ((Config->openSockfd[count] = OpenTCPSocket()) == ERROR)
190 log(DEBUG,"Bad fd %d binding port [%s:%d]",Config->openSockfd[count],Config->addrs[count],Config->ports[count]);
193 if (!BindSocket(Config->openSockfd[count],client,server,Config->ports[count],Config->addrs[count]))
195 log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
199 /* Associate the new open port with a slot in the socket engine */
200 if (Config->openSockfd[count] > -1)
202 ServerInstance->SE->AddFd(Config->openSockfd[count],true,X_LISTEN);
207 return InitialPortCount + BoundPortCount;
211 log(DEBUG,"There is nothing new to bind!");
213 return InitialPortCount;
216 for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++)
218 Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF);
219 Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF);
220 Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF);
222 if ((!*Type) || (!strcmp(Type,"clients")))
224 // modules handle server bind types now
225 Config->ports[clientportcount] = atoi(configToken);
227 // If the client put bind "*", this is an unrealism.
228 // We don't actually support this as documented, but
229 // i got fed up of people trying it, so now it converts
230 // it to an empty string meaning the same 'bind to all'.
234 strlcpy(Config->addrs[clientportcount],Addr,256);
236 log(DEBUG,"Binding %s:%s [%s] from config",Addr,configToken, Type);
240 int PortCount = clientportcount;
242 for (int count = 0; count < PortCount; count++)
244 if ((Config->openSockfd[BoundPortCount] = OpenTCPSocket()) == ERROR)
246 log(DEBUG,"Bad fd %d binding port [%s:%d]",Config->openSockfd[BoundPortCount],Config->addrs[count],Config->ports[count]);
250 if (!BindSocket(Config->openSockfd[BoundPortCount],client,server,Config->ports[count],Config->addrs[count]))
252 log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno));
256 /* well we at least bound to one socket so we'll continue */
261 /* if we didn't bind to anything then abort */
264 log(DEFAULT,"No ports bound, bailing!");
265 printf("\nERROR: Could not bind any of %d ports! Please check your configuration.\n\n", PortCount);
269 return BoundPortCount;
272 const char* insp_ntoa(insp_inaddr n)
274 static char buf[1024];
275 inet_ntop(AF_FAMILY, &n, buf, sizeof(buf));
279 int insp_aton(const char* a, insp_inaddr* n)
281 return inet_pton(AF_FAMILY, a, &n);