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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1997-2021 ircd-hybrid development team |
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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 2 of the License, or |
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* (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file m_rehash.c |
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* \brief Includes required functions for processing the REHASH command. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "client.h" |
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#include "irc_string.h" |
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#include "ircd.h" |
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#include "list.h" |
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#include "numeric.h" |
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#include "res.h" |
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#include "conf.h" |
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#include "conf_shared.h" |
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#include "log.h" |
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#include "send.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "motd.h" |
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|
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|
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/*! \brief REHASH CONF handler |
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* Attempts to reload server's configuration file(s) |
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* \param source_p Pointer to client issuing the command |
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*/ |
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static void |
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rehash_conf(struct Client *source_p) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_REHASHING, "CONF"); |
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sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
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"%s is rehashing configuration file(s)", |
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get_oper_name(source_p)); |
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ilog(LOG_TYPE_IRCD, "REHASH CONF from %s", |
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get_oper_name(source_p)); |
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conf_rehash(false); |
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} |
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|
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/*! \brief REHASH MOTD handler |
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* Attempts to recache server's MOTD file(s) |
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* \param source_p Pointer to client issuing the command |
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*/ |
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static void |
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rehash_motd(struct Client *source_p) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_REHASHING, "MOTD"); |
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sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
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"%s is forcing re-reading of MOTD files", |
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get_oper_name(source_p)); |
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ilog(LOG_TYPE_IRCD, "REHASH MOTD from %s", |
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get_oper_name(source_p)); |
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motd_recache(); |
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} |
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|
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/*! \brief REHASH DNS handler |
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* Attempts to restart server's resolver |
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* \param source_p Pointer to client issuing the command |
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*/ |
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static void |
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rehash_dns(struct Client *source_p) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_REHASHING, "DNS"); |
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sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
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"%s is rehashing DNS", |
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get_oper_name(source_p)); |
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ilog(LOG_TYPE_IRCD, "REHASH DNS from %s", |
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get_oper_name(source_p)); |
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restart_resolver(); |
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} |
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|
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struct RehashStruct |
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{ |
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const char *const option; |
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void (*const handler)(struct Client *); |
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}; |
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|
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static const struct RehashStruct rehash_cmd_table[] = |
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{ |
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{ .option = "CONF", .handler = rehash_conf }, |
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{ .option = "MOTD", .handler = rehash_motd }, |
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{ .option = "DNS", .handler = rehash_dns }, |
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{ .option = NULL } |
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}; |
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|
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/*! \brief REHASH command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = option [CONF, DNS, MOTD] |
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* or for remote REHASH: |
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* - parv[0] = command |
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* - parv[1] = target server mask |
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* - parv[2] = option [CONF, DNS, MOTD] |
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*/ |
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static void |
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mo_rehash(struct Client *source_p, int parc, char *parv[]) |
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{ |
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const char *option = NULL; |
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const char *server = NULL; |
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|
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if (parc < 3) |
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{ |
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if (!HasOFlag(source_p, OPER_FLAG_REHASH)) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "rehash"); |
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return; |
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} |
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|
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option = parv[1]; |
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} |
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else |
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{ |
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if (!HasOFlag(source_p, OPER_FLAG_REHASH_REMOTE)) |
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{ |
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sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "rehash:remote"); |
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return; |
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} |
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|
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server = parv[1]; |
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option = parv[2]; |
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} |
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|
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for (const struct RehashStruct *tab = rehash_cmd_table; tab->handler; ++tab) |
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{ |
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if (irccmp(tab->option, option)) |
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continue; |
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|
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if (!EmptyString(server)) |
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sendto_match_servs(source_p, server, 0, "REHASH %s %s", server, option); |
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|
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if (EmptyString(server) || match(server, me.name) == 0) |
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tab->handler(source_p); |
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|
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return; |
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} |
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|
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sendto_one_notice(source_p, &me, ":%s is not a valid option. " |
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"Choose from CONF, DNS, MOTD", |
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option); |
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} |
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|
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/*! \brief REHASH command handler |
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* |
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* \param source_p Pointer to allocated Client struct from which the message |
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* originally comes from. This can be a local or remote client. |
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* \param parc Integer holding the number of supplied arguments. |
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
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* pointers. |
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* \note Valid arguments for this command are: |
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* - parv[0] = command |
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* - parv[1] = target server mask |
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* - parv[2] = option [CONF, DNS, MOTD] |
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*/ |
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static void |
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ms_rehash(struct Client *source_p, int parc, char *parv[]) |
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{ |
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const char *const option = parv[2]; |
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const char *const server = parv[1]; |
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|
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sendto_match_servs(source_p, server, 0, "REHASH %s %s", server, option); |
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|
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if (match(server, me.name)) |
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return; |
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|
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if (!shared_find(SHARED_REHASH, source_p->servptr->name, |
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source_p->username, source_p->host)) |
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return; |
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|
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for (const struct RehashStruct *tab = rehash_cmd_table; tab->handler; ++tab) |
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{ |
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if (irccmp(tab->option, option)) |
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continue; |
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|
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tab->handler(source_p); |
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return; |
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} |
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} |
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|
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static struct Message rehash_msgtab = |
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{ |
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.cmd = "REHASH", |
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.handlers[UNREGISTERED_HANDLER] = { .handler = m_unregistered }, |
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.handlers[CLIENT_HANDLER] = { .handler = m_not_oper }, |
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.handlers[SERVER_HANDLER] = { .handler = ms_rehash, .args_min = 3 }, |
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.handlers[ENCAP_HANDLER] = { .handler = m_ignore }, |
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.handlers[OPER_HANDLER] = { .handler = mo_rehash, .args_min = 2 } |
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}; |
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|
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static void |
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module_init(void) |
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{ |
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mod_add_cmd(&rehash_msgtab); |
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} |
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|
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static void |
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module_exit(void) |
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{ |
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mod_del_cmd(&rehash_msgtab); |
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} |
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|
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struct module module_entry = |
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{ |
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.version = "$Revision$", |
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.modinit = module_init, |
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.modexit = module_exit, |
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}; |
