X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsocket.cpp;h=f9b605d3be05a2a1377d18ece0befafca5489261;hb=84a19a9ab6129deb71cdc24b216b74dd8eb80978;hp=9207135665997a49f383cd8c2dbaaf77d9954e0e;hpb=d066a23b4d2904717e3b5099dd02d25f7fd9d07a;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/socket.cpp b/src/socket.cpp index 920713566..f9b605d3b 100644 --- a/src/socket.cpp +++ b/src/socket.cpp @@ -2,7 +2,7 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * Inspire is copyright (C) 2002-2004 ChatSpike-Dev. + * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. * E-mail: * * @@ -14,54 +14,236 @@ * --------------------------------------------------- */ -using namespace std; - -#include "inspircd_config.h" -#include -#include -#include #include -#include -#include -#include -#include +#include "configreader.h" #include "socket.h" #include "inspircd.h" -#include "inspircd_io.h" -#include "inspircd_util.h" #include "inspstring.h" #include "helperfuncs.h" +#include "socketengine.h" +#include "message.h" -extern FILE *log_file; -extern int boundPortCount; -extern int openSockfd[MAXSOCKS]; +extern InspIRCd* ServerInstance; +extern ServerConfig* Config; extern time_t TIME; -extern bool unlimitcore; -extern int MaxConn; +extern int openSockfd[MAX_DESCRIPTORS]; + +InspSocket* socket_ref[MAX_DESCRIPTORS]; -InspSocket::InspSocket() +/** This will bind a socket to a port. It works for UDP/TCP. + * If a hostname is given to bind to, the function will first + * attempt to resolve the hostname, then bind to the IP the + * hostname resolves to. This is a blocking lookup blocking for + * a maximum of one second before it times out, using the DNS + * server specified in the configuration file. + */ +bool BindSocket(int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr) { - this->state = I_DISCONNECTED; + memset(&server,0,sizeof(server)); + insp_inaddr addy; + bool resolved = false; + char resolved_addr[128]; + + if (*addr == '*') + *addr = 0; + + if (*addr && !inet_aton(addr,&addy)) + { + /* If they gave a hostname, bind to the IP it resolves to */ + if (CleanAndResolve(resolved_addr, addr, true)) + { + inet_aton(resolved_addr,&addy); + log(DEFAULT,"Resolved binding '%s' -> '%s'",addr,resolved_addr); + server.sin_addr = addy; + resolved = true; + } + else + { + log(DEFAULT,"WARNING: Could not resolve '%s' to an IP for binding to on port %d",addr,port); + return false; + } + } + server.sin_family = AF_INET; + if (!resolved) + { + if (!*addr) + { + server.sin_addr.s_addr = htonl(INADDR_ANY); + } + else + { + server.sin_addr = addy; + } + } + server.sin_port = htons(port); + if (bind(sockfd,(struct sockaddr*)&server,sizeof(server)) < 0) + { + return false; + } + else + { + log(DEBUG,"Bound port %s:%d",*addr ? addr : "*",port); + if (listen(sockfd, Config->MaxConn) == -1) + { + log(DEFAULT,"ERROR in listen(): %s",strerror(errno)); + return false; + } + else + { + NonBlocking(sockfd); + return true; + } + } } -InspSocket::InspSocket(std::string host, int port, bool listening) + +// Open a TCP Socket +int OpenTCPSocket() { + int sockfd; + int on = 1; + struct linger linger = { 0 }; + + if ((sockfd = socket (AF_INET, SOCK_STREAM, 0)) < 0) + { + log(DEFAULT,"Error creating TCP socket: %s",strerror(errno)); + return (ERROR); + } + else + { + setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); + /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */ + linger.l_onoff = 1; + linger.l_linger = 1; + setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &linger,sizeof(linger)); + return (sockfd); + } } -void InspSocket::Poll() +bool HasPort(int port, char* addr) { + for (int count = 0; count < ServerInstance->stats->BoundPortCount; count++) + { + if ((port == Config->ports[count]) && (!strcasecmp(Config->addrs[count],addr))) + { + return true; + } + } + return false; } -int InspSocket::OnConnected() { } -int InspSocket::OnError() { } -int InspSocket::OnDisconnect() { } -int InspSocket::OnIncomingConnection() { } - -InspSocket::~InspSocket() +int BindPorts(bool bail) { -} + char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF]; + insp_sockaddr client, server; + int clientportcount = 0; + int BoundPortCount = 0; + + if (!bail) + { + int InitialPortCount = ServerInstance->stats->BoundPortCount; + log(DEBUG,"Initial port count: %d",InitialPortCount); + + for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++) + { + Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF); + + if (((!*Type) || (!strcmp(Type,"clients"))) && (!HasPort(atoi(configToken),Addr))) + { + // modules handle server bind types now + Config->ports[clientportcount+InitialPortCount] = atoi(configToken); + if (*Addr == '*') + *Addr = 0; -/* -int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr) -int OpenTCPSocket (void) -*/ + strlcpy(Config->addrs[clientportcount+InitialPortCount],Addr,256); + clientportcount++; + log(DEBUG,"NEW binding %s:%s [%s] from config",Addr,configToken, Type); + } + } + int PortCount = clientportcount; + if (PortCount) + { + for (int count = InitialPortCount; count < InitialPortCount + PortCount; count++) + { + if ((openSockfd[count] = OpenTCPSocket()) == ERROR) + { + log(DEBUG,"Bad fd %d binding port [%s:%d]",openSockfd[count],Config->addrs[count],Config->ports[count]); + return ERROR; + } + if (!BindSocket(openSockfd[count],client,server,Config->ports[count],Config->addrs[count])) + { + log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno)); + } + else + { + /* Associate the new open port with a slot in the socket engine */ + ServerInstance->SE->AddFd(openSockfd[count],true,X_LISTEN); + BoundPortCount++; + } + } + return InitialPortCount + BoundPortCount; + } + else + { + log(DEBUG,"There is nothing new to bind!"); + } + return InitialPortCount; + } + + for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++) + { + Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF); + + if ((!*Type) || (!strcmp(Type,"clients"))) + { + // modules handle server bind types now + Config->ports[clientportcount] = atoi(configToken); + + // If the client put bind "*", this is an unrealism. + // We don't actually support this as documented, but + // i got fed up of people trying it, so now it converts + // it to an empty string meaning the same 'bind to all'. + if (*Addr == '*') + *Addr = 0; + + strlcpy(Config->addrs[clientportcount],Addr,256); + clientportcount++; + log(DEBUG,"Binding %s:%s [%s] from config",Addr,configToken, Type); + } + } + + int PortCount = clientportcount; + + for (int count = 0; count < PortCount; count++) + { + if ((openSockfd[BoundPortCount] = OpenTCPSocket()) == ERROR) + { + log(DEBUG,"Bad fd %d binding port [%s:%d]",openSockfd[BoundPortCount],Config->addrs[count],Config->ports[count]); + return ERROR; + } + + if (!BindSocket(openSockfd[BoundPortCount],client,server,Config->ports[count],Config->addrs[count])) + { + log(DEFAULT,"Failed to bind port [%s:%d]: %s",Config->addrs[count],Config->ports[count],strerror(errno)); + } + else + { + /* well we at least bound to one socket so we'll continue */ + BoundPortCount++; + } + } + + /* if we didn't bind to anything then abort */ + if (!BoundPortCount) + { + log(DEFAULT,"No ports bound, bailing!"); + printf("\nERROR: Could not bind any of %d ports! Please check your configuration.\n\n", PortCount); + return ERROR; + } + + return BoundPortCount; +}