413 lines
13 KiB
C
413 lines
13 KiB
C
/*
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* IRC - Internet Relay Chat, ircd/m_oper.c
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* Copyright (C) 1990 Jarkko Oikarinen and
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* University of Oulu, Computing Center
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: m_oper.c 1327 2005-03-19 22:52:33Z entrope $
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*/
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/*
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* m_functions execute protocol messages on this server:
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*
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* cptr is always NON-NULL, pointing to a *LOCAL* client
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* structure (with an open socket connected!). This
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* identifies the physical socket where the message
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* originated (or which caused the m_function to be
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* executed--some m_functions may call others...).
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*
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* sptr is the source of the message, defined by the
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* prefix part of the message if present. If not
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* or prefix not found, then sptr==cptr.
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*
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* (!IsServer(cptr)) => (cptr == sptr), because
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* prefixes are taken *only* from servers...
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*
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* (IsServer(cptr))
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* (sptr == cptr) => the message didn't
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* have the prefix.
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*
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* (sptr != cptr && IsServer(sptr) means
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* the prefix specified servername. (?)
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*
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* (sptr != cptr && !IsServer(sptr) means
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* that message originated from a remote
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* user (not local).
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*
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* combining
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*
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* (!IsServer(sptr)) means that, sptr can safely
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* taken as defining the target structure of the
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* message in this server.
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*
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* *Always* true (if 'parse' and others are working correct):
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*
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* 1) sptr->from == cptr (note: cptr->from == cptr)
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*
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* 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
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* *cannot* be a local connection, unless it's
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* actually cptr!). [MyConnect(x) should probably
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* be defined as (x == x->from) --msa ]
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*
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* parc number of variable parameter strings (if zero,
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* parv is allowed to be NULL)
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*
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* parv a NULL terminated list of parameter pointers,
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*
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* parv[0], sender (prefix string), if not present
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* this points to an empty string.
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* parv[1]...parv[parc-1]
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* pointers to additional parameters
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* parv[parc] == NULL, *always*
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*
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* note: it is guaranteed that parv[0]..parv[parc-1] are all
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* non-NULL pointers.
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*/
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#include "config.h"
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#include "channel.h"
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#include "class.h"
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#include "client.h"
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#include "handlers.h"
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#include "hash.h"
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#include "ircd.h"
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#include "ircd_alloc.h"
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#include "ircd_features.h"
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#include "ircd_log.h"
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#include "ircd_reply.h"
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#include "ircd_string.h"
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#include "ircd_crypt.h"
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#include "msg.h"
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#include "numeric.h"
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#include "numnicks.h"
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#include "querycmds.h"
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#include "s_conf.h"
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#include "s_debug.h"
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#include "s_user.h"
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#include "s_misc.h"
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#include "send.h"
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/* #include <assert.h> -- Now using assert in ircd_log.h */
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#include <stdlib.h>
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#include <string.h>
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void do_oper(struct Client* cptr, struct Client* sptr, struct ConfItem* aconf)
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{
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struct Flags old_mode = cli_flags(sptr);
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char* modes;
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char* parv[2];
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char* join[3];
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char chan[CHANNELLEN + 1];
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char* ajoinchan;
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char* ajoinnotice;
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unsigned int snomask = 0;
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parv[0] = cli_name(sptr);
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parv[1] = NULL;
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SetOper(sptr);
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client_set_privs(sptr, aconf);
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ClearOper(sptr);
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snomask = ConfSnoMask(aconf) & SNO_ALL;
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snomask |= aconf->snomask & SNO_ALL;
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ajoinchan = ConfAjoinChan(aconf);
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ajoinnotice = ConfAjoinNotice(aconf);
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if (MyUser(sptr)) {
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SetLocOp(sptr);
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if (HasPriv(sptr, PRIV_PROPAGATE))
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{
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ClearLocOp(sptr);
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SetOper(sptr);
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if (HasPriv(sptr, PRIV_ADMIN))
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SetAdmin(sptr);
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if (!IsHideOper(sptr) && !IsChannelService(sptr) && !IsBot(sptr))
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++UserStats.opers;
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}
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cli_handler(sptr) = OPER_HANDLER;
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SetFlag(sptr, FLAG_WALLOP);
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SetFlag(sptr, FLAG_SERVNOTICE);
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SetFlag(sptr, FLAG_DEBUG);
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if (snomask)
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set_snomask(sptr, snomask, SNO_ADD);
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else
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set_snomask(sptr, feature_int(FEAT_SNOMASK_OPERDEFAULT), SNO_ADD);
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cli_max_sendq(sptr) = 0; /* Get the sendq from the oper's class */
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cli_max_recvq(sptr) = 0; /* Get the recvq from the oper's class */
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cli_lag_min(sptr) = -2; /* Get the fake lag minimum from the oper's class */
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cli_lag_factor(sptr) = -2; /* Get the fake lag factor from the oper's class */
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if (cli_user(sptr)->opername)
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MyFree(cli_user(sptr)->opername);
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DupString(cli_user(sptr)->opername, aconf->name);
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send_umode_out(sptr, sptr, &old_mode, HasPriv(sptr, PRIV_PROPAGATE));
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} else {
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client_send_privs(&me, sptr, sptr);
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if (HasPriv(sptr, PRIV_PROPAGATE)) {
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modes = (HasPriv(sptr, PRIV_ADMIN) ? "aowsgW" : "owsgW");
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} else {
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modes = "OwsgW";
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}
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sendcmdto_one(&me, CMD_MODE, sptr, "%s %s", cli_name(sptr), modes);
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}
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modes = ConfUmode(aconf);
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if (modes) {
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if (MyUser(sptr)) {
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char *umodev[] = { NULL, NULL, NULL, NULL };
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umodev[1] = cli_name(sptr);
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umodev[2] = modes;
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old_mode = cli_flags(sptr);
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set_user_mode(sptr, sptr, 3, umodev, ALLOWMODES_ANY);
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send_umode(NULL, sptr, &old_mode, HasPriv(sptr, PRIV_PROPAGATE));
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if ((cli_snomask(sptr) != feature_int(FEAT_SNOMASK_OPERDEFAULT)) &&
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HasFlag(sptr, FLAG_SERVNOTICE))
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send_reply(sptr, RPL_SNOMASK, cli_snomask(sptr), cli_snomask(sptr));
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} else {
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if (snomask)
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sendcmdto_one(&me, CMD_MODE, sptr, "%s %s+s +%d", cli_name(sptr), modes, snomask);
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else
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sendcmdto_one(&me, CMD_MODE, sptr, "%s %s", cli_name(sptr), modes);
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}
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}
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send_reply(sptr, RPL_YOUREOPER);
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if ((feature_int(FEAT_HOST_HIDING_STYLE) == 1) ||
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(feature_int(FEAT_HOST_HIDING_STYLE) == 3))
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hide_hostmask(sptr);
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if (!EmptyString(ajoinchan))
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{
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if (!EmptyString(ajoinnotice))
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sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :%s", sptr, ajoinnotice);
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if (!MyUser(sptr)) {
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sendcmdto_serv_butone(&me, CMD_SVSJOIN, NULL, "%C %s", sptr, ajoinchan);
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} else {
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ircd_strncpy(chan, ajoinchan, CHANNELLEN + 1);
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join[0] = cli_name(sptr);
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join[1] = chan;
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join[2] = NULL;
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m_join(sptr, sptr, 2, join);
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}
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}
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if (!EmptyString(aconf->autojoinchan))
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{
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if (!EmptyString(aconf->autojoinnotice))
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sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :%s", sptr, aconf->autojoinnotice);
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if (!MyUser(sptr)) {
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sendcmdto_serv_butone(&me, CMD_SVSJOIN, NULL, "%C %s", sptr, aconf->autojoinchan);
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} else {
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ircd_strncpy(chan, aconf->autojoinchan, CHANNELLEN + 1);
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join[0] = cli_name(sptr);
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join[1] = chan;
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join[2] = NULL;
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m_join(sptr, sptr, 2, join);
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}
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}
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if (!EmptyString(aconf->swhois))
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{
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ircd_strncpy(cli_user(sptr)->swhois, aconf->swhois, BUFSIZE + 1);
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sendcmdto_serv_butone(&me, CMD_SWHOIS, NULL, "%C :%s", sptr, aconf->swhois);
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}
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sendto_opmask_butone_global((MyUser(sptr) ? &me : NULL), SNO_OLDSNO,
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"%s (%s@%s) is now a %s operator (%c)",
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cli_name(sptr), cli_user(sptr)->username, cli_user(sptr)->realhost,
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HasPriv(sptr, PRIV_PROPAGATE) ? "global" : "local",
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HasPriv(sptr, PRIV_PROPAGATE) ? 'O' : 'o');
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if (feature_bool(FEAT_OPERMOTD))
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m_opermotd(sptr, sptr, 1, parv);
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log_write(LS_OPER, L_INFO, 0, "OPER (%s) by (%#C)", aconf->name, sptr);
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}
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int can_oper(struct Client *cptr, struct Client *sptr, char *name,
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char *password, struct ConfItem **_aconf)
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{
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struct ConfItem *aconf;
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aconf = find_conf_exact(name, sptr, CONF_OPERATOR);
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if (!aconf || IsIllegal(aconf))
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{
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send_reply(sptr, ERR_NOOPERHOST);
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sendto_opmask_butone_global(&me, SNO_OLDREALOP, "Failed %sOPER attempt by %s (%s@%s) "
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"(no operator block)", (!MyUser(sptr) ? "remote " : ""),
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cli_name(sptr), cli_user(sptr)->username, cli_user(sptr)->realhost);
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return 0;
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}
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assert(0 != (aconf->status & CONF_OPERATOR));
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if (!MyUser(sptr)) {
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if (FlagHas(&aconf->privs, PRIV_REMOTE)) {
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} else if (aconf->conn_class && FlagHas(&aconf->conn_class->privs, PRIV_REMOTE)) {
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} else {
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send_reply(sptr, ERR_NOOPERHOST);
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sendto_opmask_butone_global(&me, SNO_OLDREALOP, "Failed %sOPER attempt by %s (%s@%s) "
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"(no remote oper priv)", (!MyUser(sptr) ? "remote " : ""),
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cli_name(sptr), cli_user(sptr)->username, cli_user(sptr)->realhost);
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return 0;
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}
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}
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if (!verify_sslclifp(sptr, aconf))
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{
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send_reply(sptr, ERR_SSLCLIFP);
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sendto_opmask_butone_global(&me, SNO_OLDREALOP, "Failed %sOPER attempt by %s "
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"(%s@%s) (SSL fingerprint mismatch)",
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(!MyUser(sptr) ? "remote " : ""), cli_name(sptr),
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cli_user(sptr)->username, cli_user(sptr)->realhost);
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return 0;
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}
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if (oper_password_match(password, aconf->passwd))
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{
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if (MyUser(sptr))
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{
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int attach_result = attach_conf(sptr, aconf);
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if ((ACR_OK != attach_result) && (ACR_ALREADY_AUTHORIZED != attach_result)) {
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send_reply(sptr, ERR_NOOPERHOST);
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sendto_opmask_butone_global(&me, SNO_OLDREALOP, "Failed %sOPER attempt by %s "
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"(%s@%s) (no operator block)",
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(!MyUser(sptr) ? "remote " : ""), cli_name(sptr),
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cli_user(sptr)->username, cli_user(sptr)->realhost);
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return 0;
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}
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}
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*_aconf = aconf;
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return -1;
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}
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else
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{
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send_reply(sptr, ERR_PASSWDMISMATCH);
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sendto_opmask_butone_global(&me, SNO_OLDREALOP, "Failed %sOPER attempt by %s (%s@%s) "
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"(password mis-match)", (!MyUser(sptr) ? "remote " : ""),
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cli_name(sptr), cli_user(sptr)->username,
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cli_user(sptr)->realhost);
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return 0;
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}
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}
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/*
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* m_oper - generic message handler
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*/
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int m_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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struct ConfItem* aconf;
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char* name;
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char* password;
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assert(0 != cptr);
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assert(cptr == sptr);
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if ((parc > 3) && feature_bool(FEAT_REMOTE_OPER)) {
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struct Client *srv;
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if (!string_has_wildcards(parv[1]))
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srv = FindServer(parv[1]);
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else
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srv = find_match_server(parv[1]);
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if (!srv)
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return send_reply(sptr, ERR_NOOPERHOST);
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if (IsMe(srv)) {
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parv[1] = parv[2];
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parv[2] = parv[3];
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} else {
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sendcmdto_one(sptr, CMD_OPER, srv, "%C %s %s", srv, parv[2], parv[3]);
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SetOperedRemote(sptr);
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ClearOperedLocal(sptr);
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return 0;
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}
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}
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name = parc > 1 ? parv[1] : 0;
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password = parc > 2 ? parv[2] : 0;
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if (EmptyString(name) || EmptyString(password))
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return need_more_params(sptr, "OPER");
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if (can_oper(cptr, sptr, name, password, &aconf)) {
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do_oper(cptr, sptr, aconf);
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SetOperedLocal(sptr);
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ClearOperedRemote(sptr);
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}
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return 0;
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}
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/*
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* ms_oper - server message handler
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*/
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int ms_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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struct Client *acptr;
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struct ConfItem *aconf;
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assert(0 != cptr);
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assert(IsServer(cptr));
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/*
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* if message arrived from server, trust it, and set to oper
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*/
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if (!IsServer(sptr) && !IsOper(sptr)) {
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if (parc < 4)
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return send_reply(sptr, ERR_NOOPERHOST);
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if (!(acptr = FindNServer(parv[1])))
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return send_reply(sptr, ERR_NOOPERHOST);
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else if (!IsMe(acptr)) {
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sendcmdto_one(sptr, CMD_OPER, acptr, "%C %s %s", acptr, parv[2],
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parv[3]);
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return 0;
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}
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if (can_oper(cptr, sptr, parv[2], parv[3], &aconf))
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do_oper(cptr, sptr, aconf);
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} else if (!IsServer(sptr))
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send_reply(sptr, RPL_YOUREOPER);
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return 0;
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}
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/*
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* mo_oper - oper message handler
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*/
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int mo_oper(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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assert(0 != cptr);
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assert(cptr == sptr);
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send_reply(sptr, RPL_YOUREOPER);
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return 0;
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}
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