ircd-hybrid/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 "client.h"
#include "common.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "s_conf.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.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 int report_this_status(struct Client *source_p, struct Client *target_p,int dow,
                              int link_u_p, int link_u_s);

/*
 * 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] || has_wildcards(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 = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;

      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, 0, 0);
  }

  /* 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, target_p->serv->dep_users,
                       target_p->serv->dep_servers);
  }

  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 int
report_this_status(struct Client *source_p, struct Client *target_p,
                   int dow, int link_u_p, int link_s_p)
{
  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 = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;

  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:
      if(!IsAdmin(source_p))
        class_name = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;

      sendto_one(source_p, form_str(RPL_TRACESERVER),
                 me.name, source_p->name, class_name, link_s_p,
                 link_u_p, 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;
  }

  return 0;
}
Revision:	290
Committed:	Sun Dec 4 13:31:27 2005 UTC (20 years, 8 months ago) by michael
Content type:	text/x-csrc
File size:	10069 byte(s)
Log Message:	- Moved has_wildcards() from m_list.c to match.c and re-use it in some other places.
#	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 "client.h"
28			#include "common.h"
29			#include "hash.h"
30			#include "ircd.h"
31			#include "numeric.h"
32			#include "s_serv.h"
33			#include "s_conf.h"
34			#include "send.h"
35			#include "msg.h"
36			#include "parse.h"
37			#include "modules.h"
38
39			static void do_ltrace(struct Client , int, char *);
40			static void m_ltrace(struct Client , struct Client , int, char **);
41			static void mo_ltrace(struct Client , struct Client , int, char **);
42
43			struct Message ltrace_msgtab = {
44			"LTRACE", 0, 0, 0, 0, MFLG_SLOW, 0,
45			{m_unregistered, m_ltrace, mo_ltrace, m_ignore, mo_ltrace, m_ignore}
46			};
47
48			#ifndef STATIC_MODULES
49	knight	31	const char *_version = "$Revision$";
50	adx	30	static struct Callback *ltrace_cb;
51
52			static void *
53			va_ltrace(va_list args)
54			{
55			struct Client source_p = va_arg(args, struct Client );
56			int parc = va_arg(args, int);
57			char parv = va_arg(args, char );
58
59			do_ltrace(source_p, parc, parv);
60			return NULL;
61			}
62
63			void
64			_modinit(void)
65			{
66			ltrace_cb = register_callback("doing_ltrace", va_ltrace);
67			mod_add_cmd(&ltrace_msgtab);
68			}
69
70			void
71			_moddeinit(void)
72			{
73			mod_del_cmd(&ltrace_msgtab);
74			uninstall_hook(ltrace_cb, va_ltrace);
75			}
76			#endif
77
78			static int report_this_status(struct Client source_p, struct Client target_p,int dow,
79			int link_u_p, int link_u_s);
80
81			/*
82			* m_ltrace()
83			*
84			* parv[0] = sender prefix
85			* parv[1] = target client/server to trace
86			*/
87			static void
88			m_ltrace(struct Client client_p, struct Client source_p,
89			int parc, char *parv[])
90			{
91			char *tname;
92
93			if (parc > 1)
94			tname = parv[1];
95			else
96			tname = me.name;
97			sendto_one(source_p, form_str(RPL_ENDOFTRACE),
98			me.name, parv[0], tname);
99			}
100
101			/*
102			* do_ltrace
103			*/
104			static void
105			do_ltrace(struct Client source_p, int parc, char *parv)
106			{
107			struct Client *target_p = NULL;
108			int doall;
109			int wilds, dow;
110			dlink_node *ptr;
111			char *looking_for = parv[0];
112			char *tname = parc > 1 ? parv[1] : me.name;
113
114			switch (hunt_server(source_p->from, source_p, ":%s LTRACE :%s", 1,parc,parv))
115			{
116			case HUNTED_PASS: /* note: gets here only if parv[1] exists */
117			{
118			struct Client *ac2ptr = NULL;
119
120			if ((ac2ptr = find_client(tname)) == NULL)
121			DLINK_FOREACH(ptr, global_client_list.head)
122			{
123			ac2ptr = ptr->data;
124
125			if (match(tname, ac2ptr->name) \|\| match(ac2ptr->name, tname))
126			break;
127			else
128			ac2ptr = NULL;
129			}
130
131			if (ac2ptr != NULL)
132			sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
133			ircd_version, tname, ac2ptr->from->name);
134			else
135			sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for,
136			ircd_version, tname, "ac2ptr_is_NULL!!");
137			return;
138			}
139			case HUNTED_ISME:
140			break;
141			default:
142			return;
143			}
144
145			doall = (parv[1] && (parc > 1)) ? match(tname, me.name): TRUE;
146	michael	290	wilds = !parv[1] \|\| has_wildcards(tname);
147	adx	30	dow = wilds \|\| doall;
148
149			/* lusers cant issue ltrace.. */
150			if (!dow)
151			{
152			const char* name;
153			const char* class_name;
154			char ipaddr[HOSTIPLEN];
155
156			target_p = find_client(tname);
157
158			if (target_p && IsClient(target_p))
159			{
160			name = get_client_name(target_p, HIDE_IP);
161			/* Should this be sockhost? - stu */
162			irc_getnameinfo((struct sockaddr*)&target_p->localClient->ip,
163			target_p->localClient->ip.ss_len, ipaddr,
164			HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
165	db	161	class_name = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;
166	adx	30
167			if (IsOper(target_p))
168			{
169			if (ConfigFileEntry.hide_spoof_ips)
170			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
171			me.name, source_p->name, class_name, name,
172			(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
173			CurrentTime - target_p->lasttime,
174			CurrentTime - target_p->localClient->last);
175			else
176			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
177			me.name, source_p->name, class_name, name,
178			(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr),
179			CurrentTime - target_p->lasttime,
180			CurrentTime - target_p->localClient->last);
181			}
182			}
183
184			sendto_one(source_p, form_str(RPL_ENDOFTRACE),
185			me.name, source_p->name, tname);
186			return;
187			}
188
189			/* report all opers */
190			DLINK_FOREACH(ptr, local_client_list.head)
191			{
192			target_p = ptr->data;
193
194			if (!IsOper(target_p))
195			continue;
196
197			if (!doall && wilds && !match(tname, target_p->name))
198			continue;
199
200			if (!dow && irccmp(tname, target_p->name))
201			continue;
202
203			report_this_status(source_p, target_p, dow, 0, 0);
204			}
205
206			/* report all servers */
207			DLINK_FOREACH(ptr, serv_list.head)
208			{
209			target_p = ptr->data;
210
211			if (!doall && wilds && !match(tname, target_p->name))
212			continue;
213			if (!dow && irccmp(tname, target_p->name))
214			continue;
215
216			report_this_status(source_p, target_p, dow, target_p->serv->dep_users,
217			target_p->serv->dep_servers);
218			}
219
220			sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0], tname);
221			}
222
223			/*
224			* mo_ltrace
225			* parv[0] = sender prefix
226			* parv[1] = servername
227			*/
228			static void
229			mo_ltrace(struct Client client_p, struct Client source_p,
230			int parc, char *parv[])
231			{
232			if (!IsOper(source_p))
233			{
234			sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0],
235			parc > 1 ? parv[1] : me.name);
236			return;
237			}
238
239			if (parc > 2)
240			if (hunt_server(client_p, source_p, ":%s LTRACE %s :%s", 2, parc, parv))
241			return;
242
243			#ifdef STATIC_MODULES
244			do_ltrace(source_p, parc, parv);
245			#else
246			execute_callback(ltrace_cb, source_p, parc, parv);
247			#endif
248			}
249
250			/*
251			* report_this_status
252			*
253			* inputs - pointer to client to report to
254			* - pointer to client to report about
255			* output - counter of number of hits
256			* side effects - NONE
257			*/
258			static int
259			report_this_status(struct Client source_p, struct Client target_p,
260			int dow, int link_u_p, int link_s_p)
261			{
262			const char *name = NULL;
263			const char *class_name = NULL;
264			char ip[HOSTIPLEN];
265
266			/* Should this be sockhost? - stu */
267			irc_getnameinfo((struct sockaddr *)&target_p->localClient->ip,
268			target_p->localClient->ip.ss_len, ip,
269			HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
270
271			name = get_client_name(target_p, HIDE_IP);
272	db	161	class_name = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;
273	adx	30
274			switch (target_p->status)
275			{
276			case STAT_CONNECTING:
277			sendto_one(source_p, form_str(RPL_TRACECONNECTING), me.name,
278			source_p->name, class_name,
279			IsAdmin(source_p) ? name : target_p->name);
280			break;
281
282			case STAT_HANDSHAKE:
283			sendto_one(source_p, form_str(RPL_TRACEHANDSHAKE), me.name,
284			source_p->name, class_name,
285			IsAdmin(source_p) ? name : target_p->name);
286			break;
287
288			case STAT_CLIENT:
289			if (IsAdmin(target_p))
290			{
291			if (ConfigFileEntry.hide_spoof_ips)
292			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
293			me.name, source_p->name, class_name, name,
294			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
295			CurrentTime - target_p->lasttime,
296			CurrentTime - target_p->localClient->last);
297			else
298			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
299			me.name, source_p->name, class_name, name,
300			IsAdmin(source_p) ? ip :
301			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
302			CurrentTime - target_p->lasttime,
303			CurrentTime - target_p->localClient->last);
304			}
305			else if (IsOper(target_p))
306			{
307			if (ConfigFileEntry.hide_spoof_ips)
308			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
309			me.name, source_p->name, class_name, name,
310			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
311			CurrentTime - target_p->lasttime,
312			CurrentTime - target_p->localClient->last);
313			else
314			sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
315			me.name, source_p->name, class_name, name,
316			(IsIPSpoof(target_p) ? "255.255.255.255" : ip),
317			CurrentTime - target_p->lasttime,
318			CurrentTime - target_p->localClient->last);
319			}
320			break;
321
322			case STAT_SERVER:
323			if(!IsAdmin(source_p))
324	db	161	class_name = ((struct ConfItem *)target_p->localClient->class->conf_ptr)->name;
325	adx	30
326			sendto_one(source_p, form_str(RPL_TRACESERVER),
327			me.name, source_p->name, class_name, link_s_p,
328			link_u_p, name, *(target_p->serv->by) ?
329			target_p->serv->by : "", "",
330			me.name, CurrentTime - target_p->lasttime);
331			break;
332
333			case STAT_ME:
334			case STAT_UNKNOWN:
335			break;
336
337			default: /* ...we actually shouldn't come here... --msa */
338			sendto_one(source_p, form_str(RPL_TRACENEWTYPE), me.name,
339			source_p->name, name);
340			break;
341			}
342
343			return 0;
344			}