ircd-hybrid-7.2/contrib/m_ltrace.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_ltrace.c: Traces a path to a client/server.
 *
 *  Copyright (C) 2002 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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "handlers.h"
#include "tools.h"
#include "hook.h"
#include "client.h"
#include "common.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "fdlist.h"
#include "s_bsd.h"
#include "s_serv.h"
#include "s_conf.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "irc_getnameinfo.h"

static void do_ltrace(struct Client *, int, char **);
static void m_ltrace(struct Client *, struct Client *, int, char **);
static void mo_ltrace(struct Client *, struct Client *, int, char **);

struct Message ltrace_msgtab = {
  "LTRACE", 0, 0, 0, 0, MFLG_SLOW, 0,
  {m_unregistered, m_ltrace, mo_ltrace, m_ignore, mo_ltrace, m_ignore}
};

#ifndef STATIC_MODULES
const char *_version = "$Revision$";
static struct Callback *ltrace_cb;

static void *
va_ltrace(va_list args)
{
  struct Client *source_p = va_arg(args, struct Client *);
  int parc = va_arg(args, int);
  char **parv = va_arg(args, char **);

  do_ltrace(source_p, parc, parv);
  return NULL;
}

void
_modinit(void)
{
  ltrace_cb = register_callback("doing_ltrace", va_ltrace);
  mod_add_cmd(&ltrace_msgtab);
}

void
_moddeinit(void)
{
  mod_del_cmd(&ltrace_msgtab);
  uninstall_hook(ltrace_cb, va_ltrace);
}
#endif

static void report_this_status(struct Client *, struct Client *, int);

static void
trace_get_dependent(int *const server,
                    int *const client, const struct Client *target_p)
{
  const dlink_node *ptr = NULL;

  (*server)++;
  (*client) += dlink_list_length(&target_p->serv->client_list);

  DLINK_FOREACH(ptr, target_p->serv->server_list.head)
    trace_get_dependent(server, client, ptr->data);
}

/*
 * m_ltrace()
 *
 *      parv[0] = sender prefix
 *      parv[1] = target client/server to trace
 */
static void
m_ltrace(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  char *tname;

  if (parc > 1)
    tname = parv[1];
  else
    tname = me.name;
  sendto_one(source_p, form_str(RPL_ENDOFTRACE),
             me.name, parv[0], tname);
}

/*
 * do_ltrace
 */
static void
do_ltrace(struct Client *source_p, int parc, char **parv)
{
  struct Client *target_p = NULL;
  int   doall;
  int   wilds, dow;
  dlink_node *ptr;
  char *looking_for = parv[0];
  char *tname = parc > 1 ? parv[1] : me.name;

  switch (hunt_server(source_p->from, source_p, ":%s LTRACE :%s", 1,parc,parv))
  {
    case HUNTED_PASS: /* note: gets here only if parv[1] exists */
    {
      struct Client *ac2ptr = NULL;

      if ((ac2ptr = find_client(tname)) == NULL)
        DLINK_FOREACH(ptr, global_client_list.head)
        {
          ac2ptr = ptr->data;

          if (match(tname, ac2ptr->name) || match(ac2ptr->name, tname))
            break;
          else
            ac2ptr = NULL;
        }

      if (ac2ptr != NULL)
        sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
                   ircd_version, tname, ac2ptr->from->name);
      else
        sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
                   ircd_version, tname, "ac2ptr_is_NULL!!");
      return;
    }
    case HUNTED_ISME:
      break;
    default:
      return;
  }

  doall = (parv[1] && (parc > 1)) ? match(tname, me.name): TRUE;
  wilds = !parv[1] || strchr(tname, '*') || strchr(tname, '?');
  dow = wilds || doall;
  
  /* lusers cant issue ltrace.. */
  if (!dow)
  {
    const char* name;
    const char* class_name;
    char ipaddr[HOSTIPLEN];

    target_p = find_client(tname);

    if (target_p && IsClient(target_p)) 
    {
      name = get_client_name(target_p, HIDE_IP);
      /* Should this be sockhost? - stu */
      irc_getnameinfo((struct sockaddr*)&target_p->localClient->ip,
                  target_p->localClient->ip.ss_len, ipaddr,
                  HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
      class_name = get_client_class(target_p);

      if (IsOper(target_p))
      {
        if (ConfigFileEntry.hide_spoof_ips)
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name, 
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
        else
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name,
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
      }
    }

    sendto_one(source_p, form_str(RPL_ENDOFTRACE),
               me.name, source_p->name, tname);
    return;
  }

  /* report all opers */
  DLINK_FOREACH(ptr, local_client_list.head)
  {
    target_p = ptr->data;

    if (!IsOper(target_p))
      continue;

    if (!doall && wilds && !match(tname, target_p->name))
      continue;

    if (!dow && irccmp(tname, target_p->name))
      continue;

    report_this_status(source_p, target_p, dow);
  }

  /* report all servers */
  DLINK_FOREACH(ptr, serv_list.head)
  {
    target_p = ptr->data;

    if (!doall && wilds && !match(tname, target_p->name))
      continue;
    if (!dow && irccmp(tname, target_p->name))
      continue;

    report_this_status(source_p, target_p, dow);
  }

  sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0], tname);
}

/*
 * mo_ltrace
 *      parv[0] = sender prefix
 *      parv[1] = servername
 */
static void
mo_ltrace(struct Client *client_p, struct Client *source_p,
          int parc, char *parv[])
{
  if (!IsOper(source_p))
  {
    sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0],
               parc > 1 ? parv[1] : me.name);
    return;
  }

  if (parc > 2)
    if (hunt_server(client_p, source_p, ":%s LTRACE %s :%s", 2, parc, parv))
      return;

#ifdef STATIC_MODULES
  do_ltrace(source_p, parc, parv);
#else
  execute_callback(ltrace_cb, source_p, parc, parv);
#endif
}

/*
 * report_this_status
 *
 * inputs       - pointer to client to report to
 *              - pointer to client to report about
 * output       - counter of number of hits
 * side effects - NONE
 */
static void
report_this_status(struct Client *source_p, struct Client *target_p,
                   int dow)
{
  const char *name = NULL;
  const char *class_name = NULL;
  char ip[HOSTIPLEN];

  /* Should this be sockhost? - stu */
  irc_getnameinfo((struct sockaddr *)&target_p->localClient->ip,
              target_p->localClient->ip.ss_len, ip,
              HOSTIPLEN, NULL, 0, NI_NUMERICHOST);

  name = get_client_name(target_p, HIDE_IP);
  class_name = get_client_class(target_p);

  switch (target_p->status)
  {
    case STAT_CONNECTING:
      sendto_one(source_p, form_str(RPL_TRACECONNECTING), me.name,
                 source_p->name, class_name, 
                 IsAdmin(source_p) ? name : target_p->name);
      break;

    case STAT_HANDSHAKE:
      sendto_one(source_p, form_str(RPL_TRACEHANDSHAKE), me.name,
                 source_p->name, class_name, 
                 IsAdmin(source_p) ? name : target_p->name);
      break;

    case STAT_CLIENT:
      if (IsAdmin(target_p))
      {
        if (ConfigFileEntry.hide_spoof_ips)
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name,
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ip),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
        else
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name,
                     IsAdmin(source_p) ? ip :
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ip),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
      }
      else if (IsOper(target_p))
      {
        if (ConfigFileEntry.hide_spoof_ips)
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name,
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ip),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
        else
          sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
                     me.name, source_p->name, class_name, name, 
                     (IsIPSpoof(target_p) ? "255.255.255.255" : ip),
                     CurrentTime - target_p->lasttime,
                     CurrentTime - target_p->localClient->last);
      }
      break;

    case STAT_SERVER:
    {
      int clients = 0;
      int servers = 0;

      trace_get_dependent(&servers, &clients, target_p);

      if (!IsAdmin(source_p))
        name = get_client_name(target_p, MASK_IP);

      sendto_one(source_p, form_str(RPL_TRACESERVER),
                 me.name, source_p->name, class_name, servers,
                 clients, name, *(target_p->serv->by) ?
                 target_p->serv->by : "*", "*",
                 me.name, CurrentTime - target_p->lasttime);
      break;
    }

    case STAT_ME:
    case STAT_UNKNOWN:
      break;

    default: /* ...we actually shouldn't come here... --msa */
      sendto_one(source_p, form_str(RPL_TRACENEWTYPE), me.name,
                 source_p->name, name);
      break;
  }
}
Revision:	889
Committed:	Thu Nov 1 12:59:05 2007 UTC (18 years, 9 months ago) by michael
Content type:	text/x-csrc
File size:	10371 byte(s)
Log Message:	- Got rid of Serv.dep_users and Serv.dep_servers
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_ltrace.c: Traces a path to a client/server.
4			*
5			* Copyright (C) 2002 Hybrid Development Team
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26			#include "handlers.h"
27			#include "tools.h"
28			#include "hook.h"
29			#include "client.h"
30			#include "common.h"
31			#include "hash.h"
32			#include "irc_string.h"
33			#include "ircd.h"
34			#include "numeric.h"
35			#include "fdlist.h"
36			#include "s_bsd.h"
37			#include "s_serv.h"
38			#include "s_conf.h"
39			#include "send.h"
40			#include "msg.h"
41			#include "parse.h"
42			#include "modules.h"
43			#include "irc_getnameinfo.h"
44
45			static void do_ltrace(struct Client , int, char *);
46			static void m_ltrace(struct Client , struct Client , int, char **);
47			static void mo_ltrace(struct Client , struct Client , int, char **);
48
49			struct Message ltrace_msgtab = {
50			"LTRACE", 0, 0, 0, 0, MFLG_SLOW, 0,
51			{m_unregistered, m_ltrace, mo_ltrace, m_ignore, mo_ltrace, m_ignore}
52			};
53
54			#ifndef STATIC_MODULES
55	knight	31	const char *_version = "$Revision$";
56	adx	30	static struct Callback *ltrace_cb;
57
58			static void *
59			va_ltrace(va_list args)
60			{
61			struct Client source_p = va_arg(args, struct Client );
62			int parc = va_arg(args, int);
63			char parv = va_arg(args, char );
64
65			do_ltrace(source_p, parc, parv);
66			return NULL;
67			}
68
69			void
70			_modinit(void)
71			{
72			ltrace_cb = register_callback("doing_ltrace", va_ltrace);
73			mod_add_cmd(&ltrace_msgtab);
74			}
75
76			void
77			_moddeinit(void)
78			{
79			mod_del_cmd(&ltrace_msgtab);
80			uninstall_hook(ltrace_cb, va_ltrace);
81			}
82			#endif
83
84	michael	889	static void report_this_status(struct Client , struct Client , int);
85	adx	30
86	michael	889	static void
87			trace_get_dependent(int *const server,
88			int const client, const struct Client target_p)
89			{
90			const dlink_node *ptr = NULL;
91
92			(*server)++;
93			(*client) += dlink_list_length(&target_p->serv->client_list);
94
95			DLINK_FOREACH(ptr, target_p->serv->server_list.head)
96			trace_get_dependent(server, client, ptr->data);
97			}
98
99	adx	30	/*
100			* m_ltrace()
101			*
102			* parv[0] = sender prefix
103			* parv[1] = target client/server to trace
104			*/
105			static void
106			m_ltrace(struct Client client_p, struct Client source_p,
107			int parc, char *parv[])
108			{
109			char *tname;
110
111			if (parc > 1)
112			tname = parv[1];
113			else
114			tname = me.name;
115			sendto_one(source_p, form_str(RPL_ENDOFTRACE),
116			me.name, parv[0], tname);
117			}
118
119			/*
120			* do_ltrace
121			*/
122			static void
123			do_ltrace(struct Client source_p, int parc, char *parv)
124			{
125			struct Client *target_p = NULL;
126			int doall;
127			int wilds, dow;
128			dlink_node *ptr;
129			char *looking_for = parv[0];
130			char *tname = parc > 1 ? parv[1] : me.name;
131
132			switch (hunt_server(source_p->from, source_p, ":%s LTRACE :%s", 1,parc,parv))
133			{
134			case HUNTED_PASS: /* note: gets here only if parv[1] exists */
135			{
136			struct Client *ac2ptr = NULL;
137
138			if ((ac2ptr = find_client(tname)) == NULL)
139			DLINK_FOREACH(ptr, global_client_list.head)
140			{
141			ac2ptr = ptr->data;
142
143			if (match(tname, ac2ptr->name) \|\| match(ac2ptr->name, tname))
144			break;
145			else
146			ac2ptr = NULL;
147			}
148
149			if (ac2ptr != NULL)
150			sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
151			ircd_version, tname, ac2ptr->from->name);
152			else
153			sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
154			ircd_version, tname, "ac2ptr_is_NULL!!");
155			return;
156			}
157			case HUNTED_ISME:
158			break;
159			default:
160			return;
161			}
162
163			doall = (parv[1] && (parc > 1)) ? match(tname, me.name): TRUE;
164			wilds = !parv[1] \|\| strchr(tname, '*') \|\| strchr(tname, '?');
165			dow = wilds \|\| doall;
166
167			/* lusers cant issue ltrace.. */
168			if (!dow)
169			{
170			const char* name;
171			const char* class_name;
172			char ipaddr[HOSTIPLEN];
173
174			target_p = find_client(tname);
175
176			if (target_p && IsClient(target_p))
177			{
178			name = get_client_name(target_p, HIDE_IP);
179			/* Should this be sockhost? - stu */
180			irc_getnameinfo((struct sockaddr*)&target_p->localClient->ip,
181			target_p->localClient->ip.ss_len, ipaddr,
182			HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
183			class_name = get_client_class(target_p);
184
185			if (IsOper(target_p))
186			{
187			if (ConfigFileEntry.hide_spoof_ips)
188			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
189			me.name, source_p->name, class_name, name,
190			(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
191			CurrentTime - target_p->lasttime,
192			CurrentTime - target_p->localClient->last);
193			else
194			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
195			me.name, source_p->name, class_name, name,
196			(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
197			CurrentTime - target_p->lasttime,
198			CurrentTime - target_p->localClient->last);
199			}
200			}
201
202			sendto_one(source_p, form_str(RPL_ENDOFTRACE),
203			me.name, source_p->name, tname);
204			return;
205			}
206
207			/* report all opers */
208			DLINK_FOREACH(ptr, local_client_list.head)
209			{
210			target_p = ptr->data;
211
212			if (!IsOper(target_p))
213			continue;
214
215			if (!doall && wilds && !match(tname, target_p->name))
216			continue;
217
218			if (!dow && irccmp(tname, target_p->name))
219			continue;
220
221	michael	889	report_this_status(source_p, target_p, dow);
222	adx	30	}
223
224			/* report all servers */
225			DLINK_FOREACH(ptr, serv_list.head)
226			{
227			target_p = ptr->data;
228
229			if (!doall && wilds && !match(tname, target_p->name))
230			continue;
231			if (!dow && irccmp(tname, target_p->name))
232			continue;
233
234	michael	889	report_this_status(source_p, target_p, dow);
235	adx	30	}
236
237			sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0], tname);
238			}
239
240			/*
241			* mo_ltrace
242			* parv[0] = sender prefix
243			* parv[1] = servername
244			*/
245			static void
246			mo_ltrace(struct Client client_p, struct Client source_p,
247			int parc, char *parv[])
248			{
249			if (!IsOper(source_p))
250			{
251			sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0],
252			parc > 1 ? parv[1] : me.name);
253			return;
254			}
255
256			if (parc > 2)
257			if (hunt_server(client_p, source_p, ":%s LTRACE %s :%s", 2, parc, parv))
258			return;
259
260			#ifdef STATIC_MODULES
261			do_ltrace(source_p, parc, parv);
262			#else
263			execute_callback(ltrace_cb, source_p, parc, parv);
264			#endif
265			}
266
267			/*
268			* report_this_status
269			*
270			* inputs - pointer to client to report to
271			* - pointer to client to report about
272			* output - counter of number of hits
273			* side effects - NONE
274			*/
275	michael	889	static void
276	adx	30	report_this_status(struct Client source_p, struct Client target_p,
277	michael	889	int dow)
278	adx	30	{
279			const char *name = NULL;
280			const char *class_name = NULL;
281			char ip[HOSTIPLEN];
282
283			/* Should this be sockhost? - stu */
284			irc_getnameinfo((struct sockaddr *)&target_p->localClient->ip,
285			target_p->localClient->ip.ss_len, ip,
286			HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
287
288			name = get_client_name(target_p, HIDE_IP);
289			class_name = get_client_class(target_p);
290
291			switch (target_p->status)
292			{
293			case STAT_CONNECTING:
294			sendto_one(source_p, form_str(RPL_TRACECONNECTING), me.name,
295			source_p->name, class_name,
296			IsAdmin(source_p) ? name : target_p->name);
297			break;
298
299			case STAT_HANDSHAKE:
300			sendto_one(source_p, form_str(RPL_TRACEHANDSHAKE), me.name,
301			source_p->name, class_name,
302			IsAdmin(source_p) ? name : target_p->name);
303			break;
304
305			case STAT_CLIENT:
306			if (IsAdmin(target_p))
307			{
308			if (ConfigFileEntry.hide_spoof_ips)
309			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
310			me.name, source_p->name, class_name, name,
311			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
312			CurrentTime - target_p->lasttime,
313			CurrentTime - target_p->localClient->last);
314			else
315			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
316			me.name, source_p->name, class_name, name,
317			IsAdmin(source_p) ? ip :
318			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
319			CurrentTime - target_p->lasttime,
320			CurrentTime - target_p->localClient->last);
321			}
322			else if (IsOper(target_p))
323			{
324			if (ConfigFileEntry.hide_spoof_ips)
325			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
326			me.name, source_p->name, class_name, name,
327			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
328			CurrentTime - target_p->lasttime,
329			CurrentTime - target_p->localClient->last);
330			else
331			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
332			me.name, source_p->name, class_name, name,
333			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
334			CurrentTime - target_p->lasttime,
335			CurrentTime - target_p->localClient->last);
336			}
337			break;
338
339			case STAT_SERVER:
340	michael	889	{
341			int clients = 0;
342			int servers = 0;
343
344			trace_get_dependent(&servers, &clients, target_p);
345
346			if (!IsAdmin(source_p))
347	adx	30	name = get_client_name(target_p, MASK_IP);
348
349			sendto_one(source_p, form_str(RPL_TRACESERVER),
350	michael	889	me.name, source_p->name, class_name, servers,
351			clients, name, *(target_p->serv->by) ?
352	adx	30	target_p->serv->by : "", "",
353			me.name, CurrentTime - target_p->lasttime);
354			break;
355	michael	889	}
356	adx	30
357			case STAT_ME:
358			case STAT_UNKNOWN:
359			break;
360
361			default: /* ...we actually shouldn't come here... --msa */
362			sendto_one(source_p, form_str(RPL_TRACENEWTYPE), me.name,
363			source_p->name, name);
364			break;
365			}
366			}