trunk/modules/m_module.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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 void
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_NOPRIVILEGES),
               me.name, source_p->name);
    return;
  }

  if (EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
               me.name, source_p->name, "MODULE");
    return;
  }

  if (!irccmp(parv[1], "LOAD"))
  {
    if (findmodule_byname((m_bn = libio_basename(parv[2]))) != NULL)
    {
      sendto_one(source_p, ":%s NOTICE %s :Module %s is already loaded",
                 me.name, source_p->name, m_bn);
      return;
    }

    load_one_module(parv[2]);
    return;
  }

  if (!irccmp(parv[1], "UNLOAD"))
  {
    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;
    }

    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;
    }

    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;
  }

  if (!irccmp(parv[1], "RELOAD"))
  {
    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_list);

      DLINK_FOREACH_SAFE(ptr, ptr_next, modules_list.head)
      {
        modp = ptr->data;
        unload_one_module(modp->name, 0);
      }

      load_all_modules(0);
      load_conf_modules();
      load_core_modules(0);

      sendto_realops_flags(UMODE_ALL, L_ALL,
                           "Module Restart: %u modules unloaded, %u modules loaded",
                           modnum, dlink_list_length(&modules_list));
      ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
           modnum, dlink_list_length(&modules_list));
      return;
    }

    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;
    }

    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;
    }

    if ((load_one_module(parv[2]) == -1) && check_core)
    {
      sendto_realops_flags(UMODE_ALL, L_ALL, "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;
  }

  if (!irccmp(parv[1], "LIST"))
  {
    const dlink_node *ptr = NULL;

    DLINK_FOREACH(ptr, modules_list.head)
    {
      if (parc > 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;
  }
}


static struct Message module_msgtab = {
 "MODULE", 0, 0, 2, 0, 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_CORE
};
Revision:	1447
Committed:	Mon Jun 25 20:22:29 2012 UTC (11 years, 9 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/modules/m_module.c*
File size:	6132 byte(s)
Log Message:	- Added m_module.c and moved mo_module() into it
#	User	Rev	Content
1	michael	1447	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			*
4			* Copyright (C) 2002 by the past and present ircd coders, and others.
5			*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19			* USA
20			*/
21
22			/*! \file m_module.c
23			* \brief Includes required functions for processing the MODULE command.
24			* \version $Id$
25			*/
26
27			#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "irc_string.h"
31			#include "ircd.h"
32			#include "numeric.h"
33			#include "conf.h"
34			#include "log.h"
35			#include "s_user.h"
36			#include "send.h"
37			#include "parse.h"
38			#include "modules.h"
39			#include "packet.h"
40
41
42			/*! \brief MODULE command handler (called by operators)
43			*
44			* \param client_p Pointer to allocated Client struct with physical connection
45			* to this server, i.e. with an open socket connected.
46			* \param source_p Pointer to allocated Client struct from which the message
47			* originally comes from. This can be a local or remote client.
48			* \param parc Integer holding the number of supplied arguments.
49			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
50			* pointers.
51			* \note Valid arguments for this command are:
52			* - parv[0] = sender prefix
53			* - parv[1] = action [LOAD, UNLOAD, RELOAD, LIST]
54			* - parv[2] = module name
55			*/
56			static void
57			mo_module(struct Client client_p, struct Client source_p,
58			int parc, char *parv[])
59			{
60			const char *m_bn = NULL;
61			struct module *modp = NULL;
62			int check_core;
63
64			if (!HasOFlag(source_p, OPER_FLAG_MODULE))
65			{
66			sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
67			me.name, source_p->name);
68			return;
69			}
70
71			if (EmptyString(parv[1]))
72			{
73			sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
74			me.name, source_p->name, "MODULE");
75			return;
76			}
77
78			if (!irccmp(parv[1], "LOAD"))
79			{
80			if (findmodule_byname((m_bn = libio_basename(parv[2]))) != NULL)
81			{
82			sendto_one(source_p, ":%s NOTICE %s :Module %s is already loaded",
83			me.name, source_p->name, m_bn);
84			return;
85			}
86
87			load_one_module(parv[2]);
88			return;
89			}
90
91			if (!irccmp(parv[1], "UNLOAD"))
92			{
93			if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
94			{
95			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
96			me.name, source_p->name, m_bn);
97			return;
98			}
99
100			if (modp->flags & MODULE_FLAG_CORE)
101			{
102			sendto_one(source_p,
103			":%s NOTICE %s :Module %s is a core module and may not be unloaded",
104			me.name, source_p->name, m_bn);
105			return;
106			}
107
108			if (unload_one_module(m_bn, 1) == -1)
109			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
110			me.name, source_p->name, m_bn);
111			return;
112			}
113
114			if (!irccmp(parv[1], "RELOAD"))
115			{
116			if (!strcmp(parv[2], "*"))
117			{
118			unsigned int modnum = 0;
119			dlink_node ptr = NULL, ptr_next = NULL;
120
121			sendto_one(source_p, ":%s NOTICE %s :Reloading all modules",
122			me.name, source_p->name);
123
124			modnum = dlink_list_length(&modules_list);
125
126			DLINK_FOREACH_SAFE(ptr, ptr_next, modules_list.head)
127			{
128			modp = ptr->data;
129			unload_one_module(modp->name, 0);
130			}
131
132			load_all_modules(0);
133			load_conf_modules();
134			load_core_modules(0);
135
136			sendto_realops_flags(UMODE_ALL, L_ALL,
137			"Module Restart: %u modules unloaded, %u modules loaded",
138			modnum, dlink_list_length(&modules_list));
139			ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
140			modnum, dlink_list_length(&modules_list));
141			return;
142			}
143
144			if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
145			{
146			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
147			me.name, source_p->name, m_bn);
148			return;
149			}
150
151			check_core = (modp->flags & MODULE_FLAG_CORE) != 0;
152
153			if (unload_one_module(m_bn, 1) == -1)
154			{
155			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
156			me.name, source_p->name, m_bn);
157			return;
158			}
159
160			if ((load_one_module(parv[2]) == -1) && check_core)
161			{
162			sendto_realops_flags(UMODE_ALL, L_ALL, "Error reloading core "
163			"module: %s: terminating ircd", parv[2]);
164			ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
165			exit(0);
166			}
167
168			return;
169			}
170
171			if (!irccmp(parv[1], "LIST"))
172			{
173			const dlink_node *ptr = NULL;
174
175			DLINK_FOREACH(ptr, modules_list.head)
176			{
177			if (parc > 2 && !match(parv[2], modp->name))
178			continue;
179
180			sendto_one(source_p, form_str(RPL_MODLIST), me.name, source_p->name,
181			modp->name, modp->handle,
182			modp->version, (modp->flags & MODULE_FLAG_CORE) ?"(core)":"");
183			}
184
185			sendto_one(source_p, form_str(RPL_ENDOFMODLIST),
186			me.name, source_p->name);
187			return;
188			}
189			}
190
191
192			static struct Message module_msgtab = {
193			"MODULE", 0, 0, 2, 0, MFLG_SLOW, 0,
194			{m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore}
195			};
196
197			static void
198			module_init(void)
199			{
200			mod_add_cmd(&module_msgtab);
201			}
202
203			static void
204			module_exit(void)
205			{
206			mod_del_cmd(&module_msgtab);
207			}
208
209			struct module module_entry = {
210			.node = { NULL, NULL, NULL },
211			.name = NULL,
212			.version = "$Revision$",
213			.handle = NULL,
214			.modinit = module_init,
215			.modexit = module_exit,
216			.flags = MODULE_FLAG_CORE
217			};