X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc-server.c;h=80bb6a6141169fe0b03b18063496a2b9d0494800;hp=ca2502dc62414008abdd558a715d458436aa8b2c;hb=08f9d31d60220e8a389a2d24f42625be7749f090;hpb=294320ed62bdb7dac546cea43fac3b4c916788a4 diff --git a/src/ngircd/irc-server.c b/src/ngircd/irc-server.c index ca2502dc..80bb6a61 100644 --- a/src/ngircd/irc-server.c +++ b/src/ngircd/irc-server.c @@ -1,19 +1,21 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001-2007 Alexander Barton (alex@barton.de) + * Copyright (c)2001-2013 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 * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * Please read the file COPYING, README and AUTHORS for more information. - * - * IRC commands for server links */ - #include "portab.h" +/** + * @file + * IRC commands for server links + */ + #include "imp.h" #include #include @@ -22,14 +24,11 @@ #include #include "defines.h" -#include "resolve.h" #include "conn.h" #include "conn-func.h" #include "conn-zip.h" #include "conf.h" -#include "client.h" #include "channel.h" -#include "irc-write.h" #include "lists.h" #include "log.h" #include "messages.h" @@ -37,15 +36,19 @@ #include "numeric.h" #include "ngircd.h" #include "irc-info.h" +#include "irc-macros.h" +#include "irc-write.h" #include "op.h" #include "exp.h" #include "irc-server.h" - /** - * Handler for the IRC command "SERVER". - * See RFC 2813 section 4.1.2. + * Handler for the IRC "SERVER" command. + * + * @param Client The client from which this command has been received. + * @param Req Request structure with prefix and all parameters. + * @return CONNECTED or DISCONNECTED. */ GLOBAL bool IRC_SERVER( CLIENT *Client, REQUEST *Req ) @@ -53,14 +56,13 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) char str[LINE_LEN]; CLIENT *from, *c; int i; - CONN_ID con; - + assert( Client != NULL ); assert( Req != NULL ); /* Return an error if this is not a local client */ if (Client_Conn(Client) <= NONE) - return IRC_WriteStrClient(Client, ERR_UNKNOWNCOMMAND_MSG, + return IRC_WriteErrClient(Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID(Client), Req->command); if (Client_Type(Client) == CLIENT_GOTPASS || @@ -70,26 +72,44 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) LogDebug("Connection %d: got SERVER command (new server link) ...", Client_Conn(Client)); - if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - - /* Ist this server configured on out side? */ - for( i = 0; i < MAX_SERVERS; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break; - if( i >= MAX_SERVERS ) - { - Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] ); - Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", true); + if (Req->argc != 2 && Req->argc != 3) + return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG, + Client_ID(Client), + Req->command); + + /* Get configuration index of new remote server ... */ + for (i = 0; i < MAX_SERVERS; i++) + if (strcasecmp(Req->argv[0], Conf_Server[i].name) == 0) + break; + + /* Make sure the remote server is configured here */ + if (i >= MAX_SERVERS) { + Log(LOG_ERR, + "Connection %d: Server \"%s\" not configured here!", + Client_Conn(Client), Req->argv[0]); + Conn_Close(Client_Conn(Client), NULL, + "Server not configured here", true); return DISCONNECTED; } - if( strcmp( Client_Password( Client ), Conf_Server[i].pwd_in ) != 0 ) - { - /* wrong password */ - Log( LOG_ERR, "Connection %d: Got bad password from server \"%s\"!", Client_Conn( Client ), Req->argv[0] ); - Conn_Close( Client_Conn( Client ), NULL, "Bad password", true); + + /* Check server password */ + if (strcmp(Conn_Password(Client_Conn(Client)), + Conf_Server[i].pwd_in) != 0) { + Log(LOG_ERR, + "Connection %d: Got bad password from server \"%s\"!", + Client_Conn(Client), Req->argv[0]); + Conn_Close(Client_Conn(Client), NULL, + "Bad password", true); return DISCONNECTED; } - + /* Is there a registered server with this ID? */ - if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED; + if (!Client_CheckID(Client, Req->argv[0])) + return DISCONNECTED; + + /* Mark this connection as belonging to an configured server */ + if (!Conf_SetServer(i, Client_Conn(Client))) + return DISCONNECTED; Client_SetID( Client, Req->argv[0] ); Client_SetHops( Client, 1 ); @@ -97,7 +117,6 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) /* Is this server registering on our side, or are we connecting to * a remote server? */ - con = Client_Conn(Client); if (Client_Token(Client) != TOKEN_OUTBOUND) { /* Incoming connection, send user/pass */ if (!IRC_WriteStrClient(Client, "PASS %s %s", @@ -106,7 +125,8 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) || !IRC_WriteStrClient(Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo)) { - Conn_Close(con, "Unexpected server behavior!", + Conn_Close(Client_Conn(Client), + "Unexpected server behavior!", NULL, false); return DISCONNECTED; } @@ -118,31 +138,31 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) Client_SetToken(Client, atoi(Req->argv[1])); } - /* Mark this connection as belonging to an configured server */ - Conf_SetServer(i, con); - /* Check protocol level */ if (Client_Type(Client) == CLIENT_GOTPASS) { /* We got a "simple" PASS command, so the peer is * using the protocol as defined in RFC 1459. */ - if (! (Conn_Options(con) & CONN_RFC1459)) + if (! (Conn_Options(Client_Conn(Client)) & CONN_RFC1459)) Log(LOG_INFO, "Switching connection %d (\"%s\") to RFC 1459 compatibility mode.", - con, Client_ID(Client)); - Conn_SetOption(con, CONN_RFC1459); + Client_Conn(Client), Client_ID(Client)); + Conn_SetOption(Client_Conn(Client), CONN_RFC1459); } Client_SetType(Client, CLIENT_UNKNOWNSERVER); #ifdef ZLIB - if (strchr(Client_Flags(Client), 'Z') && !Zip_InitConn(con)) { - Conn_Close( con, "Can't inizialize compression (zlib)!", NULL, false ); + if (Client_HasFlag(Client, 'Z') + && !Zip_InitConn(Client_Conn(Client))) { + Conn_Close(Client_Conn(Client), + "Can't initialize compression (zlib)!", + NULL, false ); return DISCONNECTED; } #endif #ifdef IRCPLUS - if (strchr(Client_Flags(Client), 'H')) { + if (Client_HasFlag(Client, 'H')) { LogDebug("Peer supports IRC+ extended server handshake ..."); if (!IRC_Send_ISUPPORT(Client)) return DISCONNECTED; @@ -163,54 +183,77 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req ) { /* New server is being introduced to the network */ - if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + if (Req->argc != 4) + return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG, + Client_ID(Client), Req->command); /* check for existing server with same ID */ - if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED; + if (!Client_CheckID(Client, Req->argv[0])) + return DISCONNECTED; from = Client_Search( Req->prefix ); - if( ! from ) - { + if (! from) { /* Uh, Server, that introduced the new server is unknown?! */ - Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client )); - Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", true); + Log(LOG_ALERT, + "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", + Req->prefix, Client_Conn(Client)); + Conn_Close(Client_Conn(Client), NULL, + "Unknown ID in prefix of SERVER", true); return DISCONNECTED; } - c = Client_NewRemoteServer(Client, Req->argv[0], from, atoi(Req->argv[1]), atoi(Req->argv[2]), Req->argv[3], true); + c = Client_NewRemoteServer(Client, Req->argv[0], from, + atoi(Req->argv[1]), atoi(Req->argv[2]), + Req->argv[3], true); if (!c) { - Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client )); - Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", true); + Log(LOG_ALERT, + "Can't create client structure for server! (on connection %d)", + Client_Conn(Client)); + Conn_Close(Client_Conn(Client), NULL, + "Can't allocate client structure for remote server", + true); return DISCONNECTED; } - if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) snprintf( str, sizeof( str ), "connected to %s, ", Client_ID( from )); - else strcpy( str, "" ); - Log( LOG_NOTICE|LOG_snotice, "Server \"%s\" registered (via %s, %s%d hop%s).", Client_ID( c ), Client_ID( Client ), str, Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" ); + if (Client_Hops(c) > 1 && Req->prefix[0]) + snprintf(str, sizeof(str), "connected to %s, ", + Client_ID(from)); + else + strcpy(str, ""); + Log(LOG_NOTICE|LOG_snotice, + "Server \"%s\" registered (via %s, %s%d hop%s).", + Client_ID(c), Client_ID(Client), str, Client_Hops(c), + Client_Hops(c) > 1 ? "s": "" ); /* notify other servers */ - IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c )); + IRC_WriteStrServersPrefix(Client, from, "SERVER %s %d %d :%s", + Client_ID(c), Client_Hops(c) + 1, + Client_MyToken(c), Client_Info(c)); return CONNECTED; } else - return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, + return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG, Client_ID(Client), Req->command); } /* IRC_SERVER */ - +/* + * Handler for the IRC "NJOIN" command. + * + * @param Client The client from which this command has been received. + * @param Req Request structure with prefix and all parameters. + * @return CONNECTED or DISCONNECTED. + */ GLOBAL bool IRC_NJOIN( CLIENT *Client, REQUEST *Req ) { char nick_in[COMMAND_LEN], nick_out[COMMAND_LEN], *channame, *ptr, modes[8]; - bool is_op, is_voiced; + bool is_owner, is_chanadmin, is_op, is_halfop, is_voiced; CHANNEL *chan; CLIENT *c; - + assert( Client != NULL ); assert( Req != NULL ); - if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - strlcpy( nick_in, Req->argv[1], sizeof( nick_in )); strcpy( nick_out, "" ); @@ -218,12 +261,16 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req ) ptr = strtok( nick_in, "," ); while( ptr ) { - is_op = is_voiced = false; - + is_owner = is_chanadmin = is_op = is_halfop = is_voiced = false; + /* cut off prefixes */ - while(( *ptr == '@' ) || ( *ptr == '+' )) + while(( *ptr == '~') || ( *ptr == '&' ) || ( *ptr == '@' ) || + ( *ptr == '%') || ( *ptr == '+' )) { + if( *ptr == '~' ) is_owner = true; + if( *ptr == '&' ) is_chanadmin = true; if( *ptr == '@' ) is_op = true; + if( *ptr == 'h' ) is_halfop = true; if( *ptr == '+' ) is_voiced = true; ptr++; } @@ -234,8 +281,11 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req ) Channel_Join( c, channame ); chan = Channel_Search( channame ); assert( chan != NULL ); - + + if( is_owner ) Channel_UserModeAdd( chan, c, 'q' ); + if( is_chanadmin ) Channel_UserModeAdd( chan, c, 'a' ); if( is_op ) Channel_UserModeAdd( chan, c, 'o' ); + if( is_halfop ) Channel_UserModeAdd( chan, c, 'h' ); if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' ); /* announce to channel... */ @@ -250,26 +300,33 @@ IRC_NJOIN( CLIENT *Client, REQUEST *Req ) } if( nick_out[0] != '\0' ) strlcat( nick_out, ",", sizeof( nick_out )); + if( is_owner ) strlcat( nick_out, "~", sizeof( nick_out )); + if( is_chanadmin ) strlcat( nick_out, "&", sizeof( nick_out )); if( is_op ) strlcat( nick_out, "@", sizeof( nick_out )); + if( is_halfop ) strlcat( nick_out, "%", sizeof( nick_out )); if( is_voiced ) strlcat( nick_out, "+", sizeof( nick_out )); strlcat( nick_out, ptr, sizeof( nick_out )); } else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame ); - + /* search for next Nick */ ptr = strtok( NULL, "," ); } /* forward to other servers */ - if( nick_out[0] != '\0' ) IRC_WriteStrServersPrefix( Client, Client_ThisServer( ), "NJOIN %s :%s", Req->argv[0], nick_out ); + if (nick_out[0] != '\0') + IRC_WriteStrServersPrefix(Client, Client_ThisServer(), + "NJOIN %s :%s", Req->argv[0], nick_out); return CONNECTED; } /* IRC_NJOIN */ - /** - * Handler for the IRC command "SQUIT". - * See RFC 2813 section 4.1.2 and RFC 2812 section 3.1.8. + * Handler for the IRC "SQUIT" command. + * + * @param Client The client from which this command has been received. + * @param Req Request structure with prefix and all parameters. + * @return CONNECTED or DISCONNECTED. */ GLOBAL bool IRC_SQUIT(CLIENT * Client, REQUEST * Req) @@ -277,6 +334,7 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) char msg[COMMAND_LEN], logmsg[COMMAND_LEN]; CLIENT *from, *target; CONN_ID con; + int loglevel; assert(Client != NULL); assert(Req != NULL); @@ -285,11 +343,6 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) && !Client_HasMode(Client, 'o')) return Op_NoPrivileges(Client, Req); - /* Bad number of arguments? */ - if (Req->argc != 2) - return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, - Client_ID(Client), Req->command); - if (Client_Type(Client) == CLIENT_SERVER && Req->prefix) { from = Client_Search(Req->prefix); if (Client_Type(from) != CLIENT_SERVER @@ -298,10 +351,14 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) } else from = Client; if (!from) - return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, + return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->prefix); - Log(LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...", + if (Client_Type(Client) == CLIENT_USER) + loglevel = LOG_NOTICE | LOG_snotice; + else + loglevel = LOG_DEBUG; + Log(loglevel, "Got SQUIT from %s for \"%s\": \"%s\" ...", Client_ID(from), Req->argv[0], Req->argv[1]); target = Client_Search(Req->argv[0]); @@ -320,7 +377,7 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) if (Req->argv[1][0]) if (Client_NextHop(from) != Client || con > NONE) - snprintf(msg, sizeof(msg), "%s (SQUIT from %s)", + snprintf(msg, sizeof(msg), "\"%s\" (SQUIT from %s)", Req->argv[1], Client_ID(from)); else strlcpy(msg, Req->argv[1], sizeof(msg)); @@ -332,6 +389,10 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) /* We are directly connected to the target server, so we * have to tear down the connection and to inform all the * other remaining servers in the network */ + IRC_SendWallops(Client_ThisServer(), Client_ThisServer(), + "Received SQUIT %s from %s: %s", + Req->argv[0], Client_ID(from), + Req->argv[1][0] ? Req->argv[1] : "-"); Conn_Close(con, NULL, msg, true); if (con == Client_Conn(Client)) return DISCONNECTED; @@ -349,7 +410,7 @@ IRC_SQUIT(CLIENT * Client, REQUEST * Req) logmsg[0] = '\0'; if (!strchr(msg, '(')) snprintf(logmsg, sizeof(logmsg), - "%s (SQUIT from %s)", Req->argv[1], + "\"%s\" (SQUIT from %s)", Req->argv[1], Client_ID(from)); Client_Destroy(target, logmsg[0] ? logmsg : msg, msg, false);