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 (EmptyString(parv[2]))
    {
      sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
                 me.name, source_p->name, "MODULE");
      return;
    }

    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 (EmptyString(parv[2]))
    {
      sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
                 me.name, source_p->name, "MODULE");
      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;
    }

    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 (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;
    }

    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 (EmptyString(parv[2]))
    {
      sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
                 me.name, source_p->name, "MODULE");
      return;
    }

    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;

        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_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;
    }

    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;
    }

    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, 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;
  }

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

    DLINK_FOREACH(ptr, modules_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;
  }

  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]);
}


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
};
Revision:	1834
Committed:	Fri Apr 19 19:50:27 2013 UTC (12 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	7433 byte(s)
Log Message:	- Revert to -r1831
#	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	michael	1448
43	michael	1447	/*! \brief MODULE command handler (called by operators)
44			*
45			* \param client_p Pointer to allocated Client struct with physical connection
46			* to this server, i.e. with an open socket connected.
47			* \param source_p Pointer to allocated Client struct from which the message
48			* originally comes from. This can be a local or remote client.
49			* \param parc Integer holding the number of supplied arguments.
50			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
51			* pointers.
52			* \note Valid arguments for this command are:
53			* - parv[0] = sender prefix
54			* - parv[1] = action [LOAD, UNLOAD, RELOAD, LIST]
55			* - parv[2] = module name
56			*/
57			static void
58			mo_module(struct Client client_p, struct Client source_p,
59			int parc, char *parv[])
60			{
61			const char *m_bn = NULL;
62			struct module *modp = NULL;
63			int check_core;
64
65			if (!HasOFlag(source_p, OPER_FLAG_MODULE))
66			{
67	michael	1834	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
68	michael	1447	me.name, source_p->name);
69			return;
70			}
71
72			if (EmptyString(parv[1]))
73			{
74	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
75	michael	1447	me.name, source_p->name, "MODULE");
76			return;
77			}
78
79			if (!irccmp(parv[1], "LOAD"))
80			{
81	michael	1448	if (EmptyString(parv[2]))
82			{
83	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
84	michael	1448	me.name, source_p->name, "MODULE");
85			return;
86			}
87
88	michael	1447	if (findmodule_byname((m_bn = libio_basename(parv[2]))) != NULL)
89			{
90			sendto_one(source_p, ":%s NOTICE %s :Module %s is already loaded",
91			me.name, source_p->name, m_bn);
92			return;
93			}
94
95			load_one_module(parv[2]);
96			return;
97			}
98
99			if (!irccmp(parv[1], "UNLOAD"))
100			{
101	michael	1448	if (EmptyString(parv[2]))
102			{
103	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
104	michael	1448	me.name, source_p->name, "MODULE");
105			return;
106			}
107
108	michael	1447	if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
109			{
110			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
111			me.name, source_p->name, m_bn);
112			return;
113			}
114
115			if (modp->flags & MODULE_FLAG_CORE)
116			{
117			sendto_one(source_p,
118			":%s NOTICE %s :Module %s is a core module and may not be unloaded",
119			me.name, source_p->name, m_bn);
120			return;
121			}
122
123	michael	1448	if (modp->flags & MODULE_FLAG_NOUNLOAD)
124			{
125			sendto_one(source_p,
126			":%s NOTICE %s :Module %s is a resident module and may not be unloaded",
127			me.name, source_p->name, m_bn);
128			return;
129			}
130
131	michael	1447	if (unload_one_module(m_bn, 1) == -1)
132			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
133			me.name, source_p->name, m_bn);
134			return;
135			}
136
137			if (!irccmp(parv[1], "RELOAD"))
138			{
139	michael	1448	if (EmptyString(parv[2]))
140			{
141	michael	1834	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
142	michael	1448	me.name, source_p->name, "MODULE");
143			return;
144			}
145
146	michael	1447	if (!strcmp(parv[2], "*"))
147			{
148			unsigned int modnum = 0;
149			dlink_node ptr = NULL, ptr_next = NULL;
150
151			sendto_one(source_p, ":%s NOTICE %s :Reloading all modules",
152			me.name, source_p->name);
153
154			modnum = dlink_list_length(&modules_list);
155
156			DLINK_FOREACH_SAFE(ptr, ptr_next, modules_list.head)
157			{
158			modp = ptr->data;
159	michael	1448
160			if (!(modp->flags & MODULE_FLAG_NOUNLOAD))
161			unload_one_module(modp->name, 0);
162	michael	1447	}
163
164			load_all_modules(0);
165			load_conf_modules();
166			load_core_modules(0);
167
168	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
169	michael	1447	"Module Restart: %u modules unloaded, %u modules loaded",
170			modnum, dlink_list_length(&modules_list));
171			ilog(LOG_TYPE_IRCD, "Module Restart: %u modules unloaded, %u modules loaded",
172			modnum, dlink_list_length(&modules_list));
173			return;
174			}
175
176			if ((modp = findmodule_byname((m_bn = libio_basename(parv[2])))) == NULL)
177			{
178			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
179			me.name, source_p->name, m_bn);
180			return;
181			}
182
183	michael	1448	if (modp->flags & MODULE_FLAG_NOUNLOAD)
184			{
185			sendto_one(source_p,
186			":%s NOTICE %s :Module %s is a resident module and may not be unloaded",
187			me.name, source_p->name, m_bn);
188			return;
189			}
190
191	michael	1447	check_core = (modp->flags & MODULE_FLAG_CORE) != 0;
192
193			if (unload_one_module(m_bn, 1) == -1)
194			{
195			sendto_one(source_p, ":%s NOTICE %s :Module %s is not loaded",
196			me.name, source_p->name, m_bn);
197			return;
198			}
199
200			if ((load_one_module(parv[2]) == -1) && check_core)
201			{
202	michael	1618	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
203			"Error reloading core "
204	michael	1447	"module: %s: terminating ircd", parv[2]);
205			ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
206			exit(0);
207			}
208
209			return;
210			}
211
212			if (!irccmp(parv[1], "LIST"))
213			{
214			const dlink_node *ptr = NULL;
215
216			DLINK_FOREACH(ptr, modules_list.head)
217			{
218	michael	1448	modp = ptr->data;
219
220	michael	1653	if (!EmptyString(parv[2]) && match(parv[2], modp->name))
221	michael	1447	continue;
222
223	michael	1834	sendto_one(source_p, form_str(RPL_MODLIST), me.name, source_p->name,
224	michael	1447	modp->name, modp->handle,
225			modp->version, (modp->flags & MODULE_FLAG_CORE) ?"(core)":"");
226			}
227
228	michael	1834	sendto_one(source_p, form_str(RPL_ENDOFMODLIST),
229	michael	1447	me.name, source_p->name);
230			return;
231			}
232	michael	1566
233			sendto_one(source_p, ":%s NOTICE %s :%s is not a valid option. "
234			"Choose from LOAD, UNLOAD, RELOAD, LIST",
235			me.name, source_p->name, parv[1]);
236	michael	1447	}
237
238
239			static struct Message module_msgtab = {
240	michael	1448	"MODULE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
241	michael	1447	{m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore}
242			};
243
244			static void
245			module_init(void)
246			{
247			mod_add_cmd(&module_msgtab);
248			}
249
250			static void
251			module_exit(void)
252			{
253			mod_del_cmd(&module_msgtab);
254			}
255
256			struct module module_entry = {
257			.node = { NULL, NULL, NULL },
258			.name = NULL,
259			.version = "$Revision$",
260			.handle = NULL,
261			.modinit = module_init,
262			.modexit = module_exit,
263	michael	1448	.flags = MODULE_FLAG_NOUNLOAD
264	michael	1447	};