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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 2000-2014 ircd-hybrid development team
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/*! \file m_module.c
* \brief Includes required functions for processing the MODULE command.
* \version $Id$
*/
#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "log.h"
#include "s_user.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "packet.h"
/*! \brief MODULE command handler (called by operators)
*
* \param client_p Pointer to allocated Client struct with physical connection
* to this server, i.e. with an open socket connected.
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = sender prefix
* - parv[1] = action [LOAD, UNLOAD, RELOAD, LIST]
* - parv[2] = module name
*/
static int
mo_module(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
const char *m_bn = NULL;
struct module *modp = NULL;
int check_core;
if (!HasOFlag(source_p, OPER_FLAG_MODULE))
{
sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
source_p->name, "module");
return 0;
}
if (EmptyString(parv[1]))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
me.name, source_p->name, "MODULE");
return 0;
}
if (!irccmp(parv[1], "LOAD"))
{
if (EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
me.name, source_p->name, "MODULE");
return 0;
}
if (findmodule_byname((m_bn = libio_basename(parv[2]))))
{
sendto_one(source_p, ":%s NOTICE %s :Module %s is already loaded",
me.name, source_p->name, m_bn);
return 0;
}
load_one_module(parv[2]);
return 0;
}
if (!irccmp(parv[1], "UNLOAD"))
{
if (EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
me.name, source_p->name, "MODULE");
return 0;
}
if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
{
sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
me.name, source_p->name, m_bn);
return 0;
}
if (modp->flags & MODULE_FLAG_CORE)
{
sendto_one(source_p,
":%s NOTICE %s :Module %s is a core module and may not be unloaded",
me.name, source_p->name, m_bn);
return 0;
}
if (modp->flags & MODULE_FLAG_NOUNLOAD)
{
sendto_one(source_p,
":%s NOTICE %s :Module %s is a resident module and may not be unloaded",
me.name, source_p->name, m_bn);
return 0;
}
if (unload_one_module(m_bn, 1) == -1)
sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
me.name, source_p->name, m_bn);
return 0;
}
if (!irccmp(parv[1], "RELOAD"))
{
if (EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
me.name, source_p->name, "MODULE");
return 0;
}
if (!strcmp(parv[2], "*"))
{
unsigned int modnum = 0;
dlink_node *ptr = NULL, *ptr_next = NULL;
sendto_one(source_p, ":%s NOTICE %s :Reloading all modules",
me.name, source_p->name);
modnum = dlink_list_length(modules_get_list());
DLINK_FOREACH_SAFE(ptr, ptr_next, modules_get_list()->head)
{
modp = ptr->data;
if (!(modp->flags & MODULE_FLAG_NOUNLOAD))
unload_one_module(modp->name, 0);
}
load_all_modules(0);
load_conf_modules();
load_core_modules(0);
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
"Module Restart: %u modules unloaded, %u modules loaded",
modnum, dlink_list_length(modules_get_list()));
ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
modnum, dlink_list_length(modules_get_list()));
return 0;
}
if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
{
sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
me.name, source_p->name, m_bn);
return 0;
}
if (modp->flags & MODULE_FLAG_NOUNLOAD)
{
sendto_one(source_p,
":%s NOTICE %s :Module %s is a resident module and may not be unloaded",
me.name, source_p->name, m_bn);
return 0;
}
check_core = (modp->flags & MODULE_FLAG_CORE) != 0;
if (unload_one_module(m_bn, 1) == -1)
{
sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
me.name, source_p->name, m_bn);
return 0;
}
if ((load_one_module(parv[2]) == -1) && check_core)
{
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
"Error reloading core "
"module: %s: terminating ircd", parv[2]);
ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
exit(0);
}
return 0;
}
if (!irccmp(parv[1], "LIST"))
{
const dlink_node *ptr = NULL;
DLINK_FOREACH(ptr, modules_get_list()->head)
{
modp = ptr->data;
if (!EmptyString(parv[2]) && match(parv[2], modp->name))
continue;
sendto_one(source_p, form_str(RPL_MODLIST), me.name, source_p->name,
modp->name, modp->handle,
modp->version, (modp->flags & MODULE_FLAG_CORE) ?"(core)":"");
}
sendto_one(source_p, form_str(RPL_ENDOFMODLIST),
me.name, source_p->name);
return 0;
}
sendto_one(source_p, ":%s NOTICE %s :%s is not a valid option. "
"Choose from LOAD, UNLOAD, RELOAD, LIST",
me.name, source_p->name, parv[1]);
return 0;
}
static struct Message module_msgtab =
{
"MODULE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
{ m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore }
};
static void
module_init(void)
{
mod_add_cmd(&module_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&module_msgtab);
}
struct module module_entry =
{
.node = { NULL, NULL, NULL },
.name = NULL,
.version = "$Revision$",
.handle = NULL,
.modinit = module_init,
.modexit = module_exit,
.flags = MODULE_FLAG_NOUNLOAD
};
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