2 * ircd-ratbox: A slightly useful ircd.
3 * m_trace.c: Traces a path to a client/server.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: m_trace.c 3183 2007-02-01 01:07:42Z jilles $
39 #include "s_newconf.h"
45 static int m_trace(struct Client
*, struct Client
*, int, const char **);
47 static void trace_spy(struct Client
*, struct Client
*);
49 struct Message trace_msgtab
= {
50 "TRACE", 0, 0, 0, MFLG_SLOW
,
51 {mg_unreg
, {m_trace
, 0}, {m_trace
, 0}, mg_ignore
, mg_ignore
, {m_trace
, 0}}
56 mapi_clist_av1 trace_clist
[] = { &trace_msgtab
, NULL
};
57 mapi_hlist_av1 trace_hlist
[] = {
58 { "doing_trace", &doing_trace_hook
},
61 DECLARE_MODULE_AV1(trace
, NULL
, NULL
, trace_clist
, trace_hlist
, NULL
, "$Revision: 3183 $");
63 static void count_downlinks(struct Client
*server_p
, int *pservcount
, int *pusercount
);
64 static int report_this_status(struct Client
*source_p
, struct Client
*target_p
);
66 static const char *empty_sockhost
= "255.255.255.255";
70 * parv[1] = servername
73 m_trace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
75 struct Client
*target_p
= NULL
;
79 int cnt
= 0, wilds
, dow
;
88 if(hunt_server(client_p
, source_p
, ":%s TRACE %s :%s", 2, parc
, parv
) !=
96 /* if we have 3 parameters, then the command is directed at us. So
97 * we shouldnt be forwarding it anywhere.
101 switch (hunt_server(client_p
, source_p
, ":%s TRACE :%s", 1, parc
, parv
))
103 case HUNTED_PASS
: /* note: gets here only if parv[1] exists */
105 struct Client
*ac2ptr
;
107 if(MyClient(source_p
))
108 ac2ptr
= find_named_client(tname
);
110 ac2ptr
= find_client(tname
);
114 RB_DLINK_FOREACH(ptr
, global_serv_list
.head
)
118 if(match(tname
, ac2ptr
->name
))
125 /* giving this out with flattened links defeats the
128 if(IsOper(source_p
) || IsExemptShide(source_p
) ||
129 !ConfigServerHide
.flatten_links
)
130 sendto_one_numeric(source_p
, RPL_TRACELINK
,
131 form_str(RPL_TRACELINK
),
133 ac2ptr
? ac2ptr
->name
: tname
,
134 ac2ptr
? ac2ptr
->from
->name
: "EEK!");
147 if(match(tname
, me
.name
))
151 /* if theyre tracing our SID, we need to move tname to our name so
152 * we dont give the sid in ENDOFTRACE
154 else if(!MyClient(source_p
) && !strcmp(tname
, me
.id
))
160 wilds
= strchr(tname
, '*') || strchr(tname
, '?');
161 dow
= wilds
|| doall
;
166 if(MyClient(source_p
) || parc
> 2)
167 target_p
= find_named_person(tname
);
169 target_p
= find_person(tname
);
171 /* tname could be pointing to an ID at this point, so reset
172 * it to target_p->name if we have a target --fl
176 report_this_status(source_p
, target_p
);
177 tname
= target_p
->name
;
180 trace_spy(source_p
, target_p
);
182 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
,
183 form_str(RPL_ENDOFTRACE
), tname
);
187 trace_spy(source_p
, NULL
);
189 /* give non-opers a limited trace output of themselves (if local),
190 * opers and servers (if no shide) --fl
192 if(!IsOper(source_p
))
194 if(MyClient(source_p
))
196 if(doall
|| (wilds
&& match(tname
, source_p
->name
)))
197 report_this_status(source_p
, source_p
);
200 RB_DLINK_FOREACH(ptr
, local_oper_list
.head
)
202 target_p
= ptr
->data
;
204 if(!doall
&& wilds
&& (match(tname
, target_p
->name
) == 0))
207 report_this_status(source_p
, target_p
);
210 if (IsExemptShide(source_p
) || !ConfigServerHide
.flatten_links
)
212 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
214 target_p
= ptr
->data
;
216 if(!doall
&& wilds
&& !match(tname
, target_p
->name
))
219 report_this_status(source_p
, target_p
);
223 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
,
224 form_str(RPL_ENDOFTRACE
), tname
);
228 /* source_p is opered */
230 /* report all direct connections */
231 RB_DLINK_FOREACH(ptr
, lclient_list
.head
)
233 target_p
= ptr
->data
;
235 /* dont show invisible users to remote opers */
236 if(IsInvisible(target_p
) && dow
&& !MyConnect(source_p
) && !IsOper(target_p
))
239 if(!doall
&& wilds
&& !match(tname
, target_p
->name
))
242 /* remote opers may not see invisible normal users */
243 if(dow
&& !MyConnect(source_p
) && !IsOper(target_p
) &&
244 IsInvisible(target_p
))
247 cnt
= report_this_status(source_p
, target_p
);
250 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
252 target_p
= ptr
->data
;
254 if(!doall
&& wilds
&& !match(tname
, target_p
->name
))
257 cnt
= report_this_status(source_p
, target_p
);
260 if(MyConnect(source_p
))
262 RB_DLINK_FOREACH(ptr
, unknown_list
.head
)
264 target_p
= ptr
->data
;
266 if(!doall
&& wilds
&& !match(tname
, target_p
->name
))
269 cnt
= report_this_status(source_p
, target_p
);
275 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
, form_str(ERR_NOSUCHSERVER
),
278 /* let the user have some idea that its at the end of the
281 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
,
282 form_str(RPL_ENDOFTRACE
), tname
);
288 RB_DLINK_FOREACH(ptr
, class_list
.head
)
292 if(CurrUsers(cltmp
) > 0)
293 sendto_one_numeric(source_p
, RPL_TRACECLASS
,
294 form_str(RPL_TRACECLASS
),
295 ClassName(cltmp
), CurrUsers(cltmp
));
299 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), tname
);
307 * inputs - pointer to server to count
308 * - pointers to server and user count
310 * side effects - server and user counts are added to given values
313 count_downlinks(struct Client
*server_p
, int *pservcount
, int *pusercount
)
318 *pusercount
+= rb_dlink_list_length(&server_p
->serv
->users
);
319 RB_DLINK_FOREACH(ptr
, server_p
->serv
->servers
.head
)
321 count_downlinks(ptr
->data
, pservcount
, pusercount
);
328 * inputs - pointer to client to report to
329 * - pointer to client to report about
330 * output - counter of number of hits
331 * side effects - NONE
334 report_this_status(struct Client
*source_p
, struct Client
*target_p
)
337 const char *class_name
;
341 /* sanity check - should never happen */
342 if(!MyConnect(target_p
))
345 rb_inet_ntop_sock((struct sockaddr
*)&target_p
->localClient
->ip
, ip
, sizeof(ip
));
346 class_name
= get_client_class(target_p
);
348 if(IsAnyServer(target_p
))
349 name
= target_p
->name
;
351 name
= get_client_name(target_p
, HIDE_IP
);
353 switch (target_p
->status
)
355 case STAT_CONNECTING
:
356 sendto_one_numeric(source_p
, RPL_TRACECONNECTING
,
357 form_str(RPL_TRACECONNECTING
),
363 sendto_one_numeric(source_p
, RPL_TRACEHANDSHAKE
,
364 form_str(RPL_TRACEHANDSHAKE
),
373 /* added time -Taner */
374 sendto_one_numeric(source_p
, RPL_TRACEUNKNOWN
,
375 form_str(RPL_TRACEUNKNOWN
),
376 class_name
, name
, ip
,
377 (unsigned long)(rb_current_time() - target_p
->localClient
->firsttime
));
383 sendto_one_numeric(source_p
,
384 IsOper(target_p
) ? RPL_TRACEOPERATOR
: RPL_TRACEUSER
,
385 IsOper(target_p
) ? form_str(RPL_TRACEOPERATOR
) : form_str(RPL_TRACEUSER
),
387 show_ip(source_p
, target_p
) ? ip
: empty_sockhost
,
388 (unsigned long)(rb_current_time() - target_p
->localClient
->lasttime
),
389 (unsigned long)(rb_current_time() - target_p
->localClient
->last
));
400 count_downlinks(target_p
, &servcount
, &usercount
);
402 sendto_one_numeric(source_p
, RPL_TRACESERVER
, form_str(RPL_TRACESERVER
),
403 class_name
, servcount
, usercount
, name
,
404 *(target_p
->serv
->by
) ? target_p
->serv
->by
: "*", "*",
406 (unsigned long)(rb_current_time() - target_p
->localClient
->lasttime
));
412 default: /* ...we actually shouldn't come here... --msa */
413 sendto_one_numeric(source_p
, RPL_TRACENEWTYPE
,
414 form_str(RPL_TRACENEWTYPE
), name
);
424 * input - pointer to client
426 * side effects - hook event doing_trace is called
429 trace_spy(struct Client
*source_p
, struct Client
*target_p
)
431 hook_data_client hdata
;
433 hdata
.client
= source_p
;
434 hdata
.target
= target_p
;
436 call_hook(doing_trace_hook
, &hdata
);