X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fconn.c;h=f4511642c7c7b309c0e302de58cd7e184c172166;hp=09f726ca2bf91016d54a8d2b2c7c10029943fa68;hb=808c291c76b7ecb4ae13b6ee12e8afe658b627c1;hpb=e7e47e77a3886c258368a14a8c0bb393280aac64 diff --git a/src/ngircd/conn.c b/src/ngircd/conn.c index 09f726ca..f4511642 100644 --- a/src/ngircd/conn.c +++ b/src/ngircd/conn.c @@ -1,6 +1,6 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors. + * Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -47,10 +47,6 @@ # include #endif -#ifdef HAVE_STDINT_H -# include /* e.g. for Mac OS X */ -#endif - #ifdef TCPWRAP # include /* for TCP Wrappers */ #endif @@ -88,7 +84,7 @@ static bool Handle_Write PARAMS(( CONN_ID Idx )); static bool Conn_Write PARAMS(( CONN_ID Idx, char *Data, size_t Len )); -static int New_Connection PARAMS(( int Sock )); +static int New_Connection PARAMS(( int Sock, bool IsSSL )); static CONN_ID Socket2Index PARAMS(( int Sock )); static void Read_Request PARAMS(( CONN_ID Idx )); static unsigned int Handle_Buffer PARAMS(( CONN_ID Idx )); @@ -134,7 +130,7 @@ static void cb_listen(int sock, short irrelevant) { (void) irrelevant; - (void) New_Connection(sock); + (void) New_Connection(sock, false); } @@ -152,7 +148,7 @@ cb_listen_ssl(int sock, short irrelevant) int fd; (void) irrelevant; - fd = New_Connection(sock); + fd = New_Connection(sock, true); if (fd < 0) return; io_event_setcb(My_Connections[fd].sock, cb_clientserver_ssl); @@ -918,6 +914,30 @@ va_dcl return ok; } /* Conn_WriteStr */ +GLOBAL char* +Conn_Password( CONN_ID Idx ) +{ + assert( Idx > NONE ); + if (My_Connections[Idx].pwd == NULL) + return (char*)"\0"; + else + return My_Connections[Idx].pwd; +} /* Conn_Password */ + +GLOBAL void +Conn_SetPassword( CONN_ID Idx, const char *Pwd ) +{ + assert( Idx > NONE ); + + if (My_Connections[Idx].pwd) + free(My_Connections[Idx].pwd); + + My_Connections[Idx].pwd = strdup(Pwd); + if (My_Connections[Idx].pwd == NULL) { + Log(LOG_EMERG, "Can't allocate memory! [Conn_SetPassword]"); + exit(1); + } +} /* Conn_SetPassword */ /** * Append Data to the outbound write buffer of a connection. @@ -1146,6 +1166,8 @@ Conn_Close( CONN_ID Idx, const char *LogMsg, const char *FwdMsg, bool InformClie array_free(&My_Connections[Idx].rbuf); array_free(&My_Connections[Idx].wbuf); + if (My_Connections[Idx].pwd != NULL) + free(My_Connections[Idx].pwd); /* Clean up connection structure (=free it) */ Init_Conn_Struct( Idx ); @@ -1336,17 +1358,18 @@ Count_Connections(ng_ipaddr_t *a) * Initialize new client connection on a listening socket. * * @param Sock Listening socket descriptor. + * @param IsSSL true if this socket expects SSL-encrypted data. * @returns Accepted socket descriptor or -1 on error. */ static int -New_Connection(int Sock) +New_Connection(int Sock, UNUSED bool IsSSL) { #ifdef TCPWRAP struct request_info req; #endif ng_ipaddr_t new_addr; char ip_str[NG_INET_ADDRSTRLEN]; - int new_sock, new_sock_len, identsock; + int new_sock, new_sock_len; CLIENT *c; long cnt; @@ -1466,30 +1489,56 @@ New_Connection(int Sock) Log(LOG_INFO, "Accepted connection %d from %s:%d on socket %d.", new_sock, My_Connections[new_sock].host, ng_ipaddr_getport(&new_addr), Sock); + Account_Connection(); + +#ifdef SSL_SUPPORT + /* Delay connection initalization until SSL handshake is finished */ + if (!IsSSL) +#endif + Conn_StartLogin(new_sock); + + return new_sock; +} /* New_Connection */ + + +/** + * Finish connection initialization, start resolver subprocess. + * + * @param Idx Connection index. + */ +GLOBAL void +Conn_StartLogin(CONN_ID Idx) +{ + int ident_sock = -1; + + assert(Idx >= 0); + + /* Nothing to do if DNS (and resolver subprocess) is disabled */ + if (!Conf_DNS) + return; - identsock = new_sock; #ifdef IDENTAUTH - if (!Conf_Ident) - identsock = -1; + /* Should we make an IDENT request? */ + if (Conf_Ident) + ident_sock = My_Connections[Idx].sock; #endif - if (Conf_DNS) { - if (Conf_NoticeAuth) { + + if (Conf_NoticeAuth) { + /* Send "NOTICE AUTH" messages to the client */ #ifdef IDENTAUTH - if (Conf_Ident) - (void)Conn_WriteStr(new_sock, - "NOTICE AUTH :*** Looking up your hostname and checking ident"); - else + if (Conf_Ident) + (void)Conn_WriteStr(Idx, + "NOTICE AUTH :*** Looking up your hostname and checking ident"); + else #endif - (void)Conn_WriteStr(new_sock, - "NOTICE AUTH :*** Looking up your hostname"); - } - Resolve_Addr(&My_Connections[new_sock].proc_stat, &new_addr, - identsock, cb_Read_Resolver_Result); + (void)Conn_WriteStr(Idx, + "NOTICE AUTH :*** Looking up your hostname"); + (void)Handle_Write(Idx); } - Account_Connection(); - return new_sock; -} /* New_Connection */ + Resolve_Addr(&My_Connections[Idx].proc_stat, &My_Connections[Idx].addr, + ident_sock, cb_Read_Resolver_Result); +} /** @@ -1839,10 +1888,10 @@ Check_Connections(void) if (My_Connections[i].lastping < time(NULL) - Conf_PongTimeout) { /* Timeout */ - LogDebug - ("Connection %d: Ping timeout: %d seconds.", - i, Conf_PongTimeout); - snprintf(msg, sizeof(msg), "Ping timeout: %d seconds", Conf_PongTimeout); + snprintf(msg, sizeof(msg), + "Ping timeout: %d seconds", + Conf_PongTimeout); + LogDebug("Connection %d: %s.", i, msg); Conn_Close(i, NULL, msg, true); } } else if (My_Connections[i].lastdata < @@ -1935,6 +1984,14 @@ New_Server( int Server , ng_ipaddr_t *dest) assert( Server > NONE ); + /* Make sure that the remote server hasn't re-linked to this server + * asynchronously on its own */ + if (Conf_Server[Server].conn_id > NONE) { + Log(LOG_INFO, + "Connection to \"%s\" meanwhile re-established, aborting preparation."); + return; + } + if (!ng_ipaddr_tostr_r(dest, ip_str)) { Log(LOG_WARNING, "New_Server: Could not convert IP to string"); return; @@ -2008,7 +2065,7 @@ New_Server( int Server , ng_ipaddr_t *dest) Client_SetToken( c, TOKEN_OUTBOUND ); /* Register connection */ - Conf_Server[Server].conn_id = new_sock; + Conf_SetServer(Server, new_sock); My_Connections[new_sock].sock = new_sock; My_Connections[new_sock].addr = *dest; My_Connections[new_sock].client = c; @@ -2223,7 +2280,8 @@ cb_Read_Resolver_Result( int r_fd, UNUSED short events ) Client_SetHostname(c, readbuf); if (Conf_NoticeAuth) (void)Conn_WriteStr(i, - "NOTICE AUTH :*** Found your hostname"); + "NOTICE AUTH :*** Found your hostname: %s", + My_Connections[i].host); #ifdef IDENTAUTH ++identptr; if (*identptr) { @@ -2248,8 +2306,10 @@ cb_Read_Resolver_Result( int r_fd, UNUSED short events ) } if (Conf_NoticeAuth) { (void)Conn_WriteStr(i, - "NOTICE AUTH :*** Got %sident response", - *ptr ? "invalid " : ""); + "NOTICE AUTH :*** Got %sident response%s%s", + *ptr ? "invalid " : "", + *ptr ? "" : ": ", + *ptr ? "" : identptr); } } else { Log(LOG_INFO, "IDENT lookup for connection %d: no result.", i); @@ -2258,6 +2318,10 @@ cb_Read_Resolver_Result( int r_fd, UNUSED short events ) "NOTICE AUTH :*** No ident response"); } #endif + + if (Conf_NoticeAuth) + (void)Handle_Write(i); + Class_HandleServerBans(c); } #ifdef DEBUG