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root/svn/ircd-hybrid/branches/8.2.x/modules/m_trace.c
Revision: 1230
Committed: Thu Sep 22 19:41:19 2011 UTC (12 years, 6 months ago) by michael
Content type: text/x-csrc
Original Path: ircd-hybrid-8/modules/m_trace.c
File size: 12596 byte(s)
Log Message:
- cleanup module loader. Make module api more flexible

File Contents

# User Rev Content
1 adx 30 /*
2     * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3     * m_trace.c: Traces a path to a client/server.
4     *
5     * Copyright (C) 2002 by the past and present ircd coders, and others.
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 michael 1011 #include "list.h"
28 adx 30 #include "hook.h"
29     #include "client.h"
30     #include "hash.h"
31     #include "common.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 "send.h"
39     #include "msg.h"
40     #include "parse.h"
41     #include "modules.h"
42     #include "s_conf.h"
43    
44 michael 1230
45 michael 889 static void do_actual_trace(struct Client *, int, char *[]);
46     static void report_this_status(struct Client *, struct Client *, int);
47 adx 30
48 michael 889 static void
49     trace_get_dependent(int *const server,
50     int *const client, const struct Client *target_p)
51     {
52     const dlink_node *ptr = NULL;
53    
54     (*server)++;
55     (*client) += dlink_list_length(&target_p->serv->client_list);
56    
57     DLINK_FOREACH(ptr, target_p->serv->server_list.head)
58     trace_get_dependent(server, client, ptr->data);
59     }
60    
61 adx 30 /*
62     * m_trace()
63     *
64     * parv[0] = sender prefix
65     * parv[1] = target client/server to trace
66     */
67     static void
68     m_trace(struct Client *client_p, struct Client *source_p,
69     int parc, char *parv[])
70     {
71     const char *tname;
72    
73     if (parc > 1)
74     tname = parv[1];
75     else
76     tname = me.name;
77    
78     sendto_one(source_p, form_str(RPL_ENDOFTRACE),
79     me.name, source_p->name, tname);
80     }
81    
82    
83     /* mo_trace()
84     * parv[0] = sender prefix
85     * parv[1] = servername
86     */
87     static void
88     mo_trace(struct Client *client_p, struct Client *source_p,
89     int parc, char *parv[])
90     {
91     dlink_node *ptr;
92     const char *tname;
93     const char *from, *to;
94    
95     if (parc > 2)
96     if (hunt_server(client_p, source_p, ":%s TRACE %s :%s", 2, parc, parv))
97     return;
98    
99     if (parc > 1)
100     tname = parv[1];
101     else
102     tname = me.name;
103    
104     if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
105     {
106     from = me.id;
107     to = source_p->id;
108     }
109     else
110     {
111     from = me.name;
112     to = source_p->name;
113     }
114    
115     switch (hunt_server(client_p, source_p, ":%s TRACE :%s", 1, parc, parv))
116     {
117     case HUNTED_PASS: /* note: gets here only if parv[1] exists */
118     {
119     struct Client *ac2ptr = NULL;
120    
121 michael 1169 if ((ac2ptr = hash_find_client(tname)) == NULL)
122 adx 30 {
123     DLINK_FOREACH(ptr, global_client_list.head)
124     {
125     ac2ptr = ptr->data;
126    
127 michael 1118 if (match(tname, ac2ptr->name))
128 adx 30 break;
129     else
130     ac2ptr = NULL;
131     }
132     }
133    
134     if (ac2ptr != NULL)
135     sendto_one(source_p, form_str(RPL_TRACELINK), from, to,
136     ircd_version, tname, ac2ptr->from->name);
137     else
138     sendto_one(source_p, form_str(RPL_TRACELINK), from, to,
139     ircd_version, tname, "ac2ptr_is_NULL!!");
140     return;
141     }
142 michael 1121
143 adx 30 case HUNTED_ISME:
144 michael 1149 do_actual_trace(source_p, parc, parv);
145 adx 30 break;
146     default:
147     return;
148     }
149     }
150    
151 michael 1149 /*
152     ** ms_trace
153     ** parv[0] = sender prefix
154     ** parv[1] = servername
155     */
156 adx 30 static void
157 michael 1149 ms_trace(struct Client *client_p, struct Client *source_p,
158     int parc, char *parv[])
159     {
160     if (hunt_server(client_p, source_p, ":%s TRACE %s :%s", 2, parc, parv))
161     return;
162    
163 michael 1219 if (HasUMode(source_p, UMODE_OPER))
164 michael 1149 mo_trace(client_p, source_p, parc, parv);
165     }
166    
167     static void
168 michael 889 do_actual_trace(struct Client *source_p, int parc, char *parv[])
169 adx 30 {
170     struct Client *target_p = NULL;
171     struct ConfItem *conf;
172     struct ClassItem *cltmp;
173     int doall = 0;
174 michael 889 int wilds, dow;
175 adx 30 dlink_node *ptr;
176     const char *from, *to, *tname;
177    
178     if (parc > 1)
179     tname = parv[1];
180     else
181     tname = me.name;
182    
183     if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
184     {
185     from = me.id;
186     to = source_p->id;
187     }
188     else
189     {
190     from = me.name;
191     to = source_p->name;
192     }
193    
194 michael 1144 sendto_realops_flags(UMODE_SPY, L_ALL,
195     "TRACE requested by %s (%s@%s) [%s]",
196     source_p->name, source_p->username,
197     source_p->host, source_p->servptr->name);
198    
199 adx 30 if (match(tname, me.name))
200     doall = TRUE;
201     else if (!MyClient(source_p) && !strcmp(tname, me.id))
202     {
203     doall = TRUE;
204     tname = me.name;
205     }
206    
207     wilds = !parv[1] || strchr(tname, '*') || strchr(tname, '?');
208     dow = wilds || doall;
209    
210     set_time();
211 michael 1219 if (!HasUMode(source_p, UMODE_OPER) || !dow) /* non-oper traces must be full nicks */
212 adx 30 /* lets also do this for opers tracing nicks */
213     {
214     const char *name;
215     const char *class_name;
216    
217 michael 1169 target_p = hash_find_client(tname);
218 adx 30
219     if (target_p && IsClient(target_p))
220     {
221     name = get_client_name(target_p, HIDE_IP);
222     class_name = get_client_class(target_p);
223    
224 michael 1219 if (HasUMode(target_p, UMODE_OPER))
225 adx 30 {
226     sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
227     from, to, class_name, name,
228 michael 891 IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost,
229 adx 30 CurrentTime - target_p->lasttime,
230 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
231 adx 30 }
232     else
233     {
234     sendto_one(source_p,form_str(RPL_TRACEUSER),
235     from, to, class_name, name,
236 michael 891 IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost,
237 adx 30 CurrentTime - target_p->lasttime,
238 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
239 adx 30 }
240     }
241    
242     sendto_one(source_p, form_str(RPL_ENDOFTRACE),
243     from, to, tname);
244     return;
245     }
246    
247     /* report all direct connections */
248     DLINK_FOREACH(ptr, local_client_list.head)
249     {
250     target_p = ptr->data;
251    
252 michael 1219 if (HasUMode(target_p, UMODE_INVISIBLE) && dow &&
253     !(MyConnect(source_p) && HasUMode(source_p, UMODE_OPER)) &&
254     !HasUMode(target_p, UMODE_OPER) && (target_p != source_p))
255 adx 30 continue;
256     if (!doall && wilds && !match(tname, target_p->name))
257     continue;
258     if (!dow && irccmp(tname, target_p->name))
259     continue;
260    
261 michael 889 report_this_status(source_p, target_p, dow);
262 adx 30 }
263    
264     DLINK_FOREACH(ptr, serv_list.head)
265     {
266     target_p = ptr->data;
267    
268     if (!doall && wilds && !match(tname, target_p->name))
269     continue;
270     if (!dow && irccmp(tname, target_p->name))
271     continue;
272    
273 michael 889 report_this_status(source_p, target_p, dow);
274 adx 30 }
275    
276     /* This section is to report the unknowns */
277     DLINK_FOREACH(ptr, unknown_list.head)
278     {
279     target_p = ptr->data;
280    
281     if (!doall && wilds && !match(tname, target_p->name))
282     continue;
283     if (!dow && irccmp(tname, target_p->name))
284     continue;
285    
286 michael 889 report_this_status(source_p, target_p, dow);
287 adx 30 }
288    
289     DLINK_FOREACH(ptr, class_items.head)
290     {
291     conf = ptr->data;
292 michael 889 cltmp = map_to_conf(conf);
293    
294 adx 30 if (CurrUserCount(cltmp) > 0)
295     sendto_one(source_p, form_str(RPL_TRACECLASS),
296 michael 889 from, to, conf->name, CurrUserCount(cltmp));
297 adx 30 }
298    
299     sendto_one(source_p, form_str(RPL_ENDOFTRACE), from, to, tname);
300     }
301    
302     /* report_this_status()
303     *
304     * inputs - pointer to client to report to
305     * - pointer to client to report about
306     * output - counter of number of hits
307     * side effects - NONE
308     */
309 michael 889 static void
310     report_this_status(struct Client *source_p, struct Client *target_p, int dow)
311 adx 30 {
312     const char *name;
313     const char *class_name;
314     const char *from, *to;
315    
316     if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
317     {
318     from = me.id;
319     to = source_p->id;
320     }
321     else
322     {
323     from = me.name;
324     to = source_p->name;
325     }
326    
327     name = get_client_name(target_p, HIDE_IP);
328     class_name = get_client_class(target_p);
329    
330     set_time();
331    
332 michael 889 switch (target_p->status)
333 adx 30 {
334     case STAT_CONNECTING:
335     sendto_one(source_p, form_str(RPL_TRACECONNECTING),
336     from, to, class_name,
337 michael 1219 HasUMode(source_p, UMODE_ADMIN) ? name : target_p->name);
338 adx 30 break;
339     case STAT_HANDSHAKE:
340     sendto_one(source_p, form_str(RPL_TRACEHANDSHAKE),
341     from, to, class_name,
342 michael 1219 HasUMode(source_p, UMODE_ADMIN) ? name : target_p->name);
343 adx 30 break;
344     case STAT_ME:
345     break;
346     case STAT_UNKNOWN:
347     /* added time -Taner */
348     sendto_one(source_p, form_str(RPL_TRACEUNKNOWN),
349 michael 891 from, to, class_name, name, target_p->sockhost,
350 adx 30 target_p->firsttime ? CurrentTime - target_p->firsttime : -1);
351     break;
352     case STAT_CLIENT:
353 michael 891 /*
354     * Only opers see users if there is a wildcard
355 adx 30 * but anyone can see all the opers.
356     */
357 michael 1219 if ((HasUMode(source_p, UMODE_OPER) &&
358     (MyClient(source_p) || !(dow && HasUMode(target_p, UMODE_INVISIBLE))))
359     || !dow || HasUMode(target_p, UMODE_OPER))
360 adx 30 {
361 michael 1219 if (HasUMode(target_p, UMODE_ADMIN) && !ConfigFileEntry.hide_spoof_ips)
362 adx 30 sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
363     from, to, class_name, name,
364 michael 1219 HasUMode(source_p, UMODE_ADMIN) ? target_p->sockhost : "255.255.255.255",
365 adx 30 CurrentTime - target_p->lasttime,
366 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
367 adx 30
368 michael 1219 else if (HasUMode(target_p, UMODE_OPER))
369 adx 30 {
370     if (ConfigFileEntry.hide_spoof_ips)
371     sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
372     from, to, class_name, name,
373 michael 891 IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost,
374 adx 30 CurrentTime - target_p->lasttime,
375 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
376 adx 30 else
377     sendto_one(source_p, form_str(RPL_TRACEOPERATOR),
378     from, to, class_name, name,
379 michael 891 MyOper(source_p) ? target_p->sockhost :
380     (IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost),
381 adx 30 CurrentTime - target_p->lasttime,
382 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
383 adx 30 }
384     else
385     {
386     const char *format_str=NULL;
387 michael 1219 if (HasUMode(source_p, UMODE_OPER) && IsCaptured(target_p))
388 adx 30 format_str = form_str(RPL_TRACECAPTURED);
389     else
390     format_str = form_str(RPL_TRACEUSER);
391    
392     if (ConfigFileEntry.hide_spoof_ips)
393     sendto_one(source_p, format_str,
394     from, to, class_name, name,
395 michael 891 IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost,
396 adx 30 CurrentTime - target_p->lasttime,
397 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
398 adx 30 else
399     sendto_one(source_p, format_str,
400     from, to, class_name, name,
401 michael 891 MyOper(source_p) ? target_p->sockhost :
402     (IsIPSpoof(target_p) ? "255.255.255.255" : target_p->sockhost),
403 adx 30 CurrentTime - target_p->lasttime,
404 michael 1176 CurrentTime - target_p->localClient->last_privmsg);
405 adx 30 }
406     }
407     break;
408     case STAT_SERVER:
409 michael 889 {
410     int clients = 0;
411     int servers = 0;
412    
413     trace_get_dependent(&servers, &clients, target_p);
414    
415 michael 1219 if (!HasUMode(source_p, UMODE_ADMIN))
416 adx 30 name = get_client_name(target_p, MASK_IP);
417    
418     sendto_one(source_p, form_str(RPL_TRACESERVER),
419 michael 889 from, to, class_name, servers,
420     clients, name, *(target_p->serv->by) ?
421 adx 30 target_p->serv->by : "*", "*",
422     me.name, CurrentTime - target_p->lasttime);
423     break;
424 michael 889 }
425 adx 30
426     default: /* ...we actually shouldn't come here... --msa */
427     sendto_one(source_p, form_str(RPL_TRACENEWTYPE),
428 michael 889 from, to, name);
429 adx 30 break;
430     }
431     }
432 michael 1230
433     static struct Message trace_msgtab = {
434     "TRACE", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
435     { m_unregistered, m_trace, ms_trace, m_ignore, mo_trace, m_ignore }
436     };
437    
438     static void
439     module_init(void)
440     {
441     mod_add_cmd(&trace_msgtab);
442     }
443    
444     static void
445     module_exit(void)
446     {
447     mod_del_cmd(&trace_msgtab);
448     }
449    
450     struct module module_entry = {
451     .node = { NULL, NULL, NULL },
452     .name = NULL,
453     .version = "$Revision$",
454     .handle = NULL,
455     .modinit = module_init,
456     .modexit = module_exit,
457     .flags = 0
458     };

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