/* * 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 };