/* * ms_uping - server message handler * * m_uping -- by Run * * parv[0] = sender prefix * parv[1] = pinged server * parv[2] = port * parv[3] = hunted server * parv[4] = number of requested pings */ int ms_uping(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct ConfItem *aconf; int port; int count; assert(0 != cptr); assert(0 != sptr); if (!IsAnOper(sptr)) { send_reply(sptr, ERR_NOPRIVILEGES); return 0; } if (parc < 5) { send_reply(sptr, ERR_NEEDMOREPARAMS, "UPING"); return 0; } if (hunt_server_cmd(sptr, CMD_UPING, cptr, 1, "%s %s %C %s", 3, parc, parv) != HUNTED_ISME) return 0; /* * Determine port: First user supplied, then default : 7007 */ if (EmptyString(parv[2]) || (port = atoi(parv[2])) <= 0) port = atoi(UDP_PORT); if (EmptyString(parv[4]) || (count = atoi(parv[4])) <= 0) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :UPING : Illegal number of " "packets: %s", sptr, parv[4]); return 0; } /* * Check if a CONNECT would be possible at all (adapted from m_connect) */ if ((aconf = conf_find_server(parv[1]))) uping_server(sptr, aconf, port, count); else sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :UPING: Host %s not listed in " "ircd.conf", sptr, parv[1]); return 0; }
/** Handle a CONNECT message from a server. * * \a parv has the following elements: * \li \a parv[1] is the server that should initiate the connection * \li \a parv[2] is the port number to connect on (zero for the default) * \li \a parv[3] is the server to connect to * * See @ref m_functions for discussion of the arguments. * @param[in] cptr Client that sent us the message. * @param[in] sptr Original source of message. * @param[in] parc Number of arguments. * @param[in] parv Argument vector. */ int ms_connect(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { unsigned short port; unsigned short tmpport; const char* rule; struct ConfItem* aconf; struct Client* acptr; struct Jupe* ajupe; assert(0 != cptr); assert(0 != sptr); if (!IsPrivileged(sptr)) return send_reply(sptr, ERR_NOPRIVILEGES); if (parc < 4) { /* * this is coming from a server which should have already * checked it's args, if we don't have parc == 4, something * isn't right. */ protocol_violation(sptr, "Too few parameters to connect"); return need_more_params(sptr, "CONNECT"); } if (hunt_server_cmd(sptr, CMD_CONNECT, cptr, 1, "%s %s :%C", 3, parc, parv) != HUNTED_ISME) return 0; /* * need to find the conf entry first so we can use the server name from * the conf entry instead of parv[1] to find out if the server is already * present below. --Bleep */ if (0 == (aconf = conf_find_server(parv[1]))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Host %s not listed " "in ircd.conf", sptr, parv[1]); return 0; } /* * use aconf->name to look up the server */ if ((acptr = FindServer(aconf->name))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Server %s already " "exists from %s", sptr, parv[1], cli_name(cli_from(acptr))); return 0; } /* * Evaluate connection rules... If no rules found, allow the * connect. Otherwise stop with the first true rule (ie: rules * are ored together. Oper connects are effected only by D * lines (CRULEALL) not d lines (CRULEAUTO). */ if ((rule = conf_eval_crule(aconf->name, CRULE_ALL))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Disallowed by rule: %s", sptr, rule); return 0; } /* * Check to see if the server is juped; if it is, disallow the connect */ if ((ajupe = jupe_find(aconf->name)) && JupeIsActive(ajupe)) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Server %s is juped: %s", sptr, JupeServer(ajupe), JupeReason(ajupe)); return 0; } /* * Allow opers to /connect foo.* 0 bah.* to connect foo and bah * using the conf's configured port */ port = atoi(parv[2]); /* * save the old port */ tmpport = aconf->address.port; if (port) aconf->address.port = port; else port = aconf->address.port; /* * Notify all operators about remote connect requests */ sendwallto_group(&me, WALL_WALLOPS, 0, "Remote CONNECT %s %s from %s", parv[1], parv[2] ? parv[2] : "", get_client_name(sptr, HIDE_IP)); log_write(LS_NETWORK, L_INFO, 0, "CONNECT From %C : %s %s", sptr, parv[1], parv[2] ? parv[2] : ""); if (connect_server(aconf, sptr)) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :*** Connecting to %s.", sptr, aconf->name); } else { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :*** Connection to %s failed", sptr, aconf->name); } aconf->address.port = tmpport; return 0; }
/** Handle a CONNECT message from an operator. * * \a parv has the following elements: * \li \a parv[1] is the server that should initiate the connection * \li \a parv[2] is the port number to connect on (zero for the default) * \li \a parv[3] is the server to connect to * * See @ref m_functions for discussion of the arguments. * @param[in] cptr Client that sent us the message. * @param[in] sptr Original source of message. * @param[in] parc Number of arguments. * @param[in] parv Argument vector. */ int mo_connect(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { unsigned short port; unsigned short tmpport; const char* rule; struct ConfItem* aconf; struct Client* acptr; struct Jupe* ajupe; assert(0 != cptr); assert(cptr == sptr); assert(IsAnOper(sptr)); if (parc < 2) return need_more_params(sptr, "CONNECT"); if (parc > 3) { /* * if parc > 3, we are trying to connect two remote * servers to each other */ if (IsLocOp(sptr)) { /* * Only allow LocOps to make local CONNECTS --SRB */ return send_reply(cptr, ERR_NOPRIVILEGES); } else { struct Client* acptr2; struct Client* acptr3; if (!(acptr3 = find_match_server(parv[3]))) { return send_reply(sptr, ERR_NOSUCHSERVER, parv[3]); } /* * Look for closest matching server * needed for "/connect blah 4400 *"? */ for (acptr2 = acptr3; acptr2 != &me; acptr2 = cli_serv(acptr2)->up) { if (!match(parv[3], cli_name(acptr2))) acptr3 = acptr2; } parv[3] = cli_name(acptr3); if (hunt_server_cmd(sptr, CMD_CONNECT, cptr, 1, "%s %s :%C", 3, parc, parv) != HUNTED_ISME) return 0; } } /* * need to find the conf entry first so we can use the server name from * the conf entry instead of parv[1] to find out if the server is already * present below. --Bleep */ if (0 == (aconf = conf_find_server(parv[1]))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Host %s not listed " "in ircd.conf", sptr, parv[1]); return 0; } /* * use aconf->name to look up the server, see above */ if ((acptr = FindServer(aconf->name))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Server %s already " "exists from %s", sptr, parv[1], cli_name(cli_from(acptr))); return 0; } /* * Evaluate connection rules... If no rules found, allow the * connect. Otherwise stop with the first true rule (ie: rules * are ored together. Oper connects are effected only by D * lines (CRULEALL) not d lines (CRULEAUTO). */ if ((rule = conf_eval_crule(aconf->name, CRULE_ALL))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Disallowed by rule: %s", sptr, rule); return 0; } /* * Check to see if the server is juped; if it is, disallow the connect */ if ((ajupe = jupe_find(aconf->name)) && JupeIsActive(ajupe)) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Server %s is juped: %s", sptr, JupeServer(ajupe), JupeReason(ajupe)); return 0; } /* * Get port number from user, if given. If not specified, * use the default from configuration structure. If missing * from there, then use the precompiled default. */ port = aconf->address.port; if (parc > 2) { assert(0 != parv[2]); if (0 == (port = atoi(parv[2]))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: Invalid port number", sptr); return 0; } } if (0 == port && 0 == (port = feature_int(FEAT_SERVER_PORT))) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :Connect: missing port number", sptr); return 0; } tmpport = aconf->address.port; aconf->address.port = port; if (connect_server(aconf, sptr)) { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :*** Connecting to %s.", sptr, aconf->name); } else { sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :*** Connection to %s failed", sptr, aconf->name); } aconf->address.port = tmpport; return 0; }