/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by 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.
- *
- * $Id: irc-oper.c,v 1.12 2002/12/12 12:24:18 alex Exp $
- *
- * IRC operator commands
*/
-
#include "portab.h"
-static char UNUSED id[] = "$Id: irc-oper.c,v 1.12 2002/12/12 12:24:18 alex Exp $";
+/**
+ * @file
+ * IRC operator commands
+ */
#include "imp.h"
#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <signal.h>
#include "ngircd.h"
-#include "resolve.h"
+#include "conn-func.h"
#include "conf.h"
-#include "conn.h"
-#include "client.h"
#include "channel.h"
+#include "class.h"
+#include "irc-macros.h"
#include "irc-write.h"
#include "log.h"
+#include "match.h"
#include "messages.h"
#include "parse.h"
+#include "op.h"
#include <exp.h>
#include "irc-oper.h"
-
-GLOBAL BOOLEAN
+/**
+ * Handle invalid received OPER command.
+ * Log OPER attempt and send error message to client.
+ */
+static bool
+Bad_OperPass(CLIENT *Client, char *errtoken, char *errmsg)
+{
+ Log(LOG_WARNING, "Got invalid OPER from \"%s\": \"%s\" -- %s",
+ Client_Mask(Client), errtoken, errmsg);
+ return IRC_WriteErrClient(Client, ERR_PASSWDMISMATCH_MSG,
+ Client_ID(Client));
+} /* Bad_OperPass */
+
+/**
+ * Handler for the IRC "OPER" 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_OPER( CLIENT *Client, REQUEST *Req )
{
- INT i;
+ struct Conf_Oper *op;
+ size_t len, i;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- /* Operator suchen */
- for( i = 0; i < Conf_Oper_Count; i++)
- {
- if( Conf_Oper[i].name[0] && Conf_Oper[i].pwd[0] && ( strcmp( Conf_Oper[i].name, Req->argv[0] ) == 0 )) break;
- }
- if( i >= Conf_Oper_Count )
- {
- Log( LOG_WARNING, "Got invalid OPER from \"%s\": Name \"%s\" not configured!", Client_Mask( Client ), Req->argv[0] );
- return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
+ len = array_length(&Conf_Opers, sizeof(*op));
+ op = array_start(&Conf_Opers);
+ for (i = 0; i < len && strcmp(op[i].name, Req->argv[0]); i++)
+ ;
+ if (i >= len)
+ return Bad_OperPass(Client, Req->argv[0], "not configured");
+
+ if (strcmp(op[i].pwd, Req->argv[1]) != 0)
+ return Bad_OperPass(Client, op[i].name, "bad password");
+
+ if (op[i].mask && (!Match(op[i].mask, Client_Mask(Client))))
+ return Bad_OperPass(Client, op[i].mask, "hostmask check failed");
+
+ if (!Client_HasMode(Client, 'o')) {
+ Client_ModeAdd(Client, 'o');
+ if (!IRC_WriteStrClient(Client, "MODE %s :+o",
+ Client_ID(Client)))
+ return DISCONNECTED;
+ IRC_WriteStrServersPrefix(NULL, Client, "MODE %s :+o",
+ Client_ID(Client));
}
- /* Stimmt das Passwort? */
- if( strcmp( Conf_Oper[i].pwd, Req->argv[1] ) != 0 )
- {
- Log( LOG_WARNING, "Got invalid OPER from \"%s\": Bad password for \"%s\"!", Client_Mask( Client ), Conf_Oper[i].name );
- return IRC_WriteStrClient( Client, ERR_PASSWDMISMATCH_MSG, Client_ID( Client ));
- }
+ if (!Client_OperByMe(Client))
+ Log(LOG_NOTICE|LOG_snotice,
+ "Got valid OPER for \"%s\" from \"%s\", user is an IRC operator now.",
+ Req->argv[0], Client_Mask(Client));
- if( ! Client_HasMode( Client, 'o' ))
- {
- /* noch kein o-Mode gesetzt */
- Client_ModeAdd( Client, 'o' );
- if( ! IRC_WriteStrClient( Client, "MODE %s :+o", Client_ID( Client ))) return DISCONNECTED;
- IRC_WriteStrServersPrefix( NULL, Client, "MODE %s :+o", Client_ID( Client ));
- }
-
- if( ! Client_OperByMe( Client )) Log( LOG_NOTICE|LOG_snotice, "Got valid OPER from \"%s\", user is an IRC operator now.", Client_Mask( Client ));
-
- Client_SetOperByMe( Client, TRUE );
- return IRC_WriteStrClient( Client, RPL_YOUREOPER_MSG, Client_ID( Client ));
+ Client_SetOperByMe(Client, true);
+ return IRC_WriteStrClient(Client, RPL_YOUREOPER_MSG, Client_ID(Client));
} /* IRC_OPER */
-
-GLOBAL BOOLEAN
-IRC_DIE( CLIENT *Client, REQUEST *Req )
+/**
+ * Handler for the IRC "DIE" 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_DIE(CLIENT * Client, REQUEST * Req)
{
- assert( Client != NULL );
- assert( Req != NULL );
-
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ /* Shut down server */
+
+ CONN_ID c;
+ CLIENT *cl;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (!Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+
+ /* Is a message given? */
+ if (Req->argc > 0) {
+ c = Conn_First();
+ while (c != NONE) {
+ cl = Conn_GetClient(c);
+ if (Client_Type(cl) == CLIENT_USER)
+ IRC_WriteStrClient(cl, "NOTICE %s :%s",
+ Client_ID(cl), Req->argv[0]);
+ c = Conn_Next(c);
+ }
+ }
- if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
+ Log(LOG_NOTICE | LOG_snotice, "Got DIE command from \"%s\" ...",
+ Client_Mask(Client));
+ NGIRCd_SignalQuit = true;
- Log( LOG_NOTICE|LOG_snotice, "Got DIE command from \"%s\", going down!", Client_Mask( Client ));
- NGIRCd_Quit = TRUE;
return CONNECTED;
} /* IRC_DIE */
-
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC "REHASH" 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_REHASH( CLIENT *Client, REQUEST *Req )
{
+ /* Reload configuration file */
+
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (!Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+
+ Log(LOG_NOTICE|LOG_snotice, "Got REHASH command from \"%s\" ...",
+ Client_Mask(Client));
+ IRC_WriteStrClient(Client, RPL_REHASHING_MSG, Client_ID(Client));
- if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
+ raise(SIGHUP);
- Log( LOG_NOTICE|LOG_snotice, "Got REHASH command from \"%s\", re-reading configuration ...", Client_Mask( Client ));
- NGIRCd_Rehash( );
-
return CONNECTED;
} /* IRC_REHASH */
-
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC "RESTART" 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_RESTART( CLIENT *Client, REQUEST *Req )
{
+ /* Restart IRC server (fork a new process) */
+
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ if (!Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
- if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
+ Log(LOG_NOTICE|LOG_snotice, "Got RESTART command from \"%s\" ...",
+ Client_Mask(Client));
+ NGIRCd_SignalRestart = true;
- Log( LOG_NOTICE|LOG_snotice, "Got RESTART command from \"%s\", going down!", Client_Mask( Client ));
- NGIRCd_Restart = TRUE;
return CONNECTED;
} /* IRC_RESTART */
+/**
+ * Handler for the IRC "CONNECT" 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_CONNECT(CLIENT * Client, REQUEST * Req)
+{
+ CLIENT *from, *target;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ /* Bad number of parameters? */
+ if (Req->argc != 1 && Req->argc != 2 && Req->argc != 3 &&
+ Req->argc != 5 && Req->argc != 6)
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Invalid port number? */
+ if ((Req->argc > 1) && atoi(Req->argv[1]) < 1)
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ if (Client_Type(Client) != CLIENT_SERVER
+ && !Client_HasMode(Client, 'o'))
+ return Op_NoPrivileges(Client, Req);
+
+ from = Client;
+ target = Client_ThisServer();
+
+ if (Req->argc == 3 || Req->argc == 6) {
+ /* This CONNECT has a target parameter */
+ if (Client_Type(Client) == CLIENT_SERVER && Req->prefix)
+ from = Client_Search(Req->prefix);
+ if (! from)
+ return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ target = (Req->argc == 3) ? Client_Search(Req->argv[2])
+ : Client_Search(Req->argv[5]);
+ if (! target || Client_Type(target) != CLIENT_SERVER)
+ return IRC_WriteErrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from), Req->argv[0]);
+ }
+
+ if (target != Client_ThisServer()) {
+ /* Forward CONNECT command ... */
+ if (Req->argc == 3)
+ IRC_WriteStrClientPrefix(target, from,
+ "CONNECT %s %s :%s", Req->argv[0],
+ Req->argv[1], Req->argv[2]);
+ else
+ IRC_WriteStrClientPrefix(target, from,
+ "CONNECT %s %s %s %s %s :%s", Req->argv[0],
+ Req->argv[1], Req->argv[2], Req->argv[3],
+ Req->argv[4], Req->argv[5]);
+ return CONNECTED;
+ }
+
+ if (!Op_Check(from, Req))
+ return Op_NoPrivileges(Client, Req);
+
+ switch (Req->argc) {
+ case 1:
+ if (!Conf_EnablePassiveServer(Req->argv[0]))
+ return IRC_WriteErrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from),
+ Req->argv[0]);
+ break;
+ case 2:
+ case 3:
+ /* Connect configured server */
+ if (!Conf_EnableServer
+ (Req->argv[0], (UINT16) atoi(Req->argv[1])))
+ return IRC_WriteErrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from),
+ Req->argv[0]);
+ break;
+ default:
+ /* Add server */
+ if (!Conf_AddServer
+ (Req->argv[0], (UINT16) atoi(Req->argv[1]), Req->argv[2],
+ Req->argv[3], Req->argv[4]))
+ return IRC_WriteErrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from),
+ Req->argv[0]);
+ }
+
+ Log(LOG_NOTICE | LOG_snotice,
+ "Got CONNECT command from \"%s\" for \"%s\".", Client_Mask(from),
+ Req->argv[0]);
+ IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
+ "Received CONNECT %s from %s",
+ Req->argv[0], Client_ID(from));
+
+ return CONNECTED;
+} /* IRC_CONNECT */
-GLOBAL BOOLEAN
-IRC_CONNECT(CLIENT *Client, REQUEST *Req )
+/**
+ * Handler for the IRC "DISCONNECT" command.
+ *
+ * This command is not specified in the IRC RFCs, it is an extension
+ * of ngIRCd: it shuts down and disables a configured server connection.
+ *
+ * @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_DISCONNECT(CLIENT * Client, REQUEST * Req)
{
- /* Vorlaeufige Version zu Debug-Zwecken: es wird einfach
- * der "passive mode" aufgehoben, mehr passiert nicht ... */
+ CONN_ID my_conn;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (!Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+
+ IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
+ "Received DISCONNECT %s from %s",
+ Req->argv[0], Client_ID(Client));
+
+ Log(LOG_NOTICE | LOG_snotice,
+ "Got DISCONNECT command from \"%s\" for \"%s\".",
+ Client_Mask(Client), Req->argv[0]);
+
+ /* Save ID of this connection */
+ my_conn = Client_Conn(Client);
+
+ /* Disconnect configured server */
+ if (!Conf_DisableServer(Req->argv[0]))
+ return IRC_WriteErrClient(Client, ERR_NOSUCHSERVER_MSG,
+ Client_ID(Client), Req->argv[0]);
+
+ /* Are we still connected or were we killed, too? */
+ if (Conn_GetClient(my_conn))
+ return CONNECTED;
+ else
+ return DISCONNECTED;
+} /* IRC_DISCONNECT */
+
+/**
+ * Handler for the IRC "WALLOPS" 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_WALLOPS( CLIENT *Client, REQUEST *Req )
+{
+ CLIENT *from;
assert( Client != NULL );
assert( Req != NULL );
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
- if(( ! Client_HasMode( Client, 'o' )) || ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
+ switch (Client_Type(Client)) {
+ case CLIENT_USER:
+ if (!Client_OperByMe(Client))
+ return IRC_WriteErrClient(Client, ERR_NOPRIVILEGES_MSG,
+ Client_ID(Client));
+ from = Client;
+ break;
+ case CLIENT_SERVER:
+ from = Client_Search(Req->prefix);
+ break;
+ default:
+ return CONNECTED;
+ }
+
+ if (!from)
+ return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
- Log( LOG_NOTICE|LOG_snotice, "Got CONNECT command from \"%s\".", Client_Mask( Client ));
- NGIRCd_Passive = FALSE;
+ IRC_SendWallops(Client, from, "%s", Req->argv[0]);
return CONNECTED;
-} /* IRC_CONNECT */
+} /* IRC_WALLOPS */
+/**
+ * Handle <?>LINE commands (GLINE, KLINE).
+ *
+ * @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_xLINE(CLIENT *Client, REQUEST *Req)
+{
+ CLIENT *from;
+ int class;
+ char class_c;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ /* Bad number of parameters? */
+ if (Req->argc != 1 && Req->argc != 3)
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ from = Op_Check(Client, Req);
+ if (!from)
+ return Op_NoPrivileges(Client, Req);
+
+ switch(Req->command[0]) {
+ case 'g':
+ case 'G':
+ class = CLASS_GLINE; class_c = 'G';
+ break;
+ case 'k':
+ case 'K':
+ class = CLASS_KLINE; class_c = 'K';
+ break;
+ default:
+ Log(LOG_CRIT,
+ "IRC_xLINE() called for unknown line: %c!? Ignored.",
+ Req->command[0]);
+ return CONNECTED;
+ }
+
+ if (Req->argc == 1) {
+ /* Delete mask from list */
+ Class_DeleteMask(class, Req->argv[0]);
+ Log(LOG_NOTICE|LOG_snotice,
+ "\"%s\" deleted \"%s\" from %c-Line list.",
+ Client_Mask(from), Req->argv[0], class_c);
+ if (class == CLASS_GLINE) {
+ /* Inform other servers */
+ IRC_WriteStrServersPrefix(Client, from, "%s %s",
+ Req->command, Req->argv[0]);
+
+ }
+ } else {
+ /* Add new mask to list */
+ if (Class_AddMask(class, Req->argv[0],
+ time(NULL) + atol(Req->argv[1]),
+ Req->argv[2])) {
+ Log(LOG_NOTICE|LOG_snotice,
+ "\"%s\" added \"%s\" to %c-Line list: \"%s\" (%ld seconds).",
+ Client_Mask(from), Req->argv[0], class_c,
+ Req->argv[2], atol(Req->argv[1]));
+ if (class == CLASS_GLINE) {
+ /* Inform other servers */
+ IRC_WriteStrServersPrefix(Client, from,
+ "%s %s %s :%s", Req->command,
+ Req->argv[0], Req->argv[1],
+ Req->argv[2]);
+ }
+ }
+ }
+
+ return CONNECTED;
+}
/* -eof- */
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