ircd-hybrid-8/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,
                           "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, "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 (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;
  }

  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:	1566
Committed:	Mon Oct 15 18:31:05 2012 UTC (12 years, 10 months ago) by michael
Content type:	text/x-csrc
File size:	7368 byte(s)
Log Message:	- m_module.c: if we cannot find a available option, yell at the user
#	Content
1	/*
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
43	/*! \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	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
68	me.name, source_p->name);
69	return;
70	}
71
72	if (EmptyString(parv[1]))
73	{
74	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
75	me.name, source_p->name, "MODULE");
76	return;
77	}
78
79	if (!irccmp(parv[1], "LOAD"))
80	{
81	if (EmptyString(parv[2]))
82	{
83	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
84	me.name, source_p->name, "MODULE");
85	return;
86	}
87
88	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	if (EmptyString(parv[2]))
102	{
103	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
104	me.name, source_p->name, "MODULE");
105	return;
106	}
107
108	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	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	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	if (EmptyString(parv[2]))
140	{
141	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
142	me.name, source_p->name, "MODULE");
143	return;
144	}
145
146	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
160	if (!(modp->flags & MODULE_FLAG_NOUNLOAD))
161	unload_one_module(modp->name, 0);
162	}
163
164	load_all_modules(0);
165	load_conf_modules();
166	load_core_modules(0);
167
168	sendto_realops_flags(UMODE_ALL, L_ALL,
169	"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	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	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	sendto_realops_flags(UMODE_ALL, L_ALL, "Error reloading core "
203	"module: %s: terminating ircd", parv[2]);
204	ilog(LOG_TYPE_IRCD, "Error loading core module %s: terminating ircd", parv[2]);
205	exit(0);
206	}
207
208	return;
209	}
210
211	if (!irccmp(parv[1], "LIST"))
212	{
213	const dlink_node *ptr = NULL;
214
215	DLINK_FOREACH(ptr, modules_list.head)
216	{
217	modp = ptr->data;
218
219	if (parc > 2 && !match(parv[2], modp->name))
220	continue;
221
222	sendto_one(source_p, form_str(RPL_MODLIST), me.name, source_p->name,
223	modp->name, modp->handle,
224	modp->version, (modp->flags & MODULE_FLAG_CORE) ?"(core)":"");
225	}
226
227	sendto_one(source_p, form_str(RPL_ENDOFMODLIST),
228	me.name, source_p->name);
229	return;
230	}
231
232	sendto_one(source_p, ":%s NOTICE %s :%s is not a valid option. "
233	"Choose from LOAD, UNLOAD, RELOAD, LIST",
234	me.name, source_p->name, parv[1]);
235	}
236
237
238	static struct Message module_msgtab = {
239	"MODULE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
240	{m_unregistered, m_not_oper, m_ignore, m_ignore, mo_module, m_ignore}
241	};
242
243	static void
244	module_init(void)
245	{
246	mod_add_cmd(&module_msgtab);
247	}
248
249	static void
250	module_exit(void)
251	{
252	mod_del_cmd(&module_msgtab);
253	}
254
255	struct module module_entry = {
256	.node = { NULL, NULL, NULL },
257	.name = NULL,
258	.version = "$Revision$",
259	.handle = NULL,
260	.modinit = module_init,
261	.modexit = module_exit,
262	.flags = MODULE_FLAG_NOUNLOAD
263	};