2 * ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
3 * m_etrace.c: Gives local opers a trace output with added info.
5 * Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
6 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
12 * 1.Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 * 2.Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3.The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
32 * $Id: m_etrace.c 3161 2007-01-25 07:23:01Z nenolod $
47 #include "s_newconf.h"
53 static int mo_etrace(struct Client
*, struct Client
*, int, const char **);
54 static int me_etrace(struct Client
*, struct Client
*, int, const char **);
55 static int m_chantrace(struct Client
*, struct Client
*, int, const char **);
56 static int mo_masktrace(struct Client
*, struct Client
*, int, const char **);
58 struct Message etrace_msgtab
= {
59 "ETRACE", 0, 0, 0, MFLG_SLOW
,
60 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, {me_etrace
, 0}, {mo_etrace
, 0}}
62 struct Message chantrace_msgtab
= {
63 "CHANTRACE", 0, 0, 0, MFLG_SLOW
,
64 {mg_ignore
, {m_chantrace
, 2}, mg_ignore
, mg_ignore
, mg_ignore
, {m_chantrace
, 2}}
66 struct Message masktrace_msgtab
= {
67 "MASKTRACE", 0, 0, 0, MFLG_SLOW
,
68 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, mg_ignore
, {mo_masktrace
, 2}}
71 mapi_clist_av1 etrace_clist
[] = { &etrace_msgtab
, &chantrace_msgtab
, &masktrace_msgtab
, NULL
};
72 DECLARE_MODULE_AV1(etrace
, NULL
, NULL
, etrace_clist
, NULL
, NULL
, "$Revision: 3161 $");
74 static void do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
);
75 static void do_etrace_full(struct Client
*source_p
);
76 static void do_single_etrace(struct Client
*source_p
, struct Client
*target_p
);
78 static const char *empty_sockhost
= "255.255.255.255";
79 static const char *spoofed_sockhost
= "0";
83 * parv[1] = options [or target]
87 mo_etrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
89 if(parc
> 1 && !EmptyString(parv
[1]))
91 if(!irccmp(parv
[1], "-full"))
92 do_etrace_full(source_p
);
94 else if(!irccmp(parv
[1], "-v6"))
95 do_etrace(source_p
, 0, 1);
96 else if(!irccmp(parv
[1], "-v4"))
97 do_etrace(source_p
, 1, 0);
101 struct Client
*target_p
= find_named_person(parv
[1]);
105 if(!MyClient(target_p
))
106 sendto_one(target_p
, ":%s ENCAP %s ETRACE %s",
107 get_id(source_p
, target_p
),
108 target_p
->servptr
->name
,
109 get_id(target_p
, target_p
));
111 do_single_etrace(source_p
, target_p
);
114 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
115 form_str(ERR_NOSUCHNICK
), parv
[1]);
119 do_etrace(source_p
, 1, 1);
125 me_etrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
127 struct Client
*target_p
;
129 if(!IsOper(source_p
) || parc
< 2 || EmptyString(parv
[1]))
132 /* we cant etrace remote clients.. we shouldnt even get sent them */
133 if((target_p
= find_person(parv
[1])) && MyClient(target_p
))
134 do_single_etrace(source_p
, target_p
);
136 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
),
137 target_p
? target_p
->name
: parv
[1]);
143 do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
)
145 struct Client
*target_p
;
148 /* report all direct connections */
149 RB_DLINK_FOREACH(ptr
, lclient_list
.head
)
151 target_p
= ptr
->data
;
154 if((!ipv4
&& target_p
->localClient
->ip
.ss_family
== AF_INET
) ||
155 (!ipv6
&& target_p
->localClient
->ip
.ss_family
== AF_INET6
))
159 sendto_one(source_p
, form_str(RPL_ETRACE
),
160 me
.name
, source_p
->name
,
161 IsOper(target_p
) ? "Oper" : "User",
162 get_client_class(target_p
),
163 target_p
->name
, target_p
->username
, target_p
->host
,
164 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255",
168 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
172 do_etrace_full(struct Client
*source_p
)
176 RB_DLINK_FOREACH(ptr
, lclient_list
.head
)
178 do_single_etrace(source_p
, ptr
->data
);
181 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
185 * do_single_etrace - searches local clients and displays those matching
187 * input - source client, target client
188 * output - etrace results
189 * side effects - etrace results are displayed
192 do_single_etrace(struct Client
*source_p
, struct Client
*target_p
)
194 /* note, we hide fullcaps for spoofed users, as mirc can often
195 * advertise its internal ip address in the field --fl
197 if(!show_ip(source_p
, target_p
))
198 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
199 me
.name
, source_p
->name
,
200 IsOper(target_p
) ? "Oper" : "User",
201 get_client_class(target_p
),
202 target_p
->name
, target_p
->username
, target_p
->host
,
203 "255.255.255.255", "<hidden> <hidden>", target_p
->info
);
205 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
206 me
.name
, source_p
->name
,
207 IsOper(target_p
) ? "Oper" : "User",
208 get_client_class(target_p
),
209 target_p
->name
, target_p
->username
,
210 target_p
->host
, target_p
->sockhost
,
211 target_p
->localClient
->fullcaps
, target_p
->info
);
215 m_chantrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
217 struct Client
*target_p
;
218 struct Channel
*chptr
;
219 struct membership
*msptr
;
220 const char *sockhost
;
227 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
232 if(EmptyString(name
))
234 sendto_one(source_p
, form_str(ERR_NEEDMOREPARAMS
),
235 me
.name
, source_p
->name
, "CHANTRACE");
240 if((chptr
= find_channel(name
)) == NULL
)
242 sendto_one_numeric(source_p
, ERR_NOSUCHCHANNEL
, form_str(ERR_NOSUCHCHANNEL
),
247 /* dont report operspys for nonexistant channels. */
249 report_operspy(source_p
, "CHANTRACE", chptr
->chname
);
251 if(!operspy
&& !IsMember(client_p
, chptr
))
253 sendto_one_numeric(source_p
, ERR_NOTONCHANNEL
, form_str(ERR_NOTONCHANNEL
),
258 RB_DLINK_FOREACH(ptr
, chptr
->members
.head
)
261 target_p
= msptr
->client_p
;
263 if(EmptyString(target_p
->sockhost
))
264 sockhost
= empty_sockhost
;
265 else if(!show_ip(source_p
, target_p
))
266 sockhost
= spoofed_sockhost
;
268 sockhost
= target_p
->sockhost
;
270 sendto_one(source_p
, form_str(RPL_ETRACE
),
271 me
.name
, source_p
->name
,
272 IsOper(target_p
) ? "Oper" : "User",
273 /* class field -- pretend its server.. */
274 target_p
->servptr
->name
,
275 target_p
->name
, target_p
->username
, target_p
->host
,
276 sockhost
, target_p
->info
);
279 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
284 match_masktrace(struct Client
*source_p
, rb_dlink_list
*list
,
285 const char *username
, const char *hostname
, const char *name
,
288 struct Client
*target_p
;
290 const char *sockhost
;
292 RB_DLINK_FOREACH(ptr
, list
->head
)
294 target_p
= ptr
->data
;
295 if(!IsPerson(target_p
))
298 if(EmptyString(target_p
->sockhost
))
299 sockhost
= empty_sockhost
;
300 else if(!show_ip(source_p
, target_p
))
301 sockhost
= spoofed_sockhost
;
303 sockhost
= target_p
->sockhost
;
305 if(match(username
, target_p
->username
) &&
306 (match(hostname
, target_p
->host
) ||
307 match(hostname
, target_p
->orighost
) ||
308 match(hostname
, sockhost
) || match_ips(hostname
, sockhost
)))
310 if(name
!= NULL
&& !match(name
, target_p
->name
))
313 if(gecos
!= NULL
&& !match_esc(gecos
, target_p
->info
))
316 sendto_one(source_p
, form_str(RPL_ETRACE
),
317 me
.name
, source_p
->name
,
318 IsOper(target_p
) ? "Oper" : "User",
319 /* class field -- pretend its server.. */
320 target_p
->servptr
->name
,
321 target_p
->name
, target_p
->username
, target_p
->host
,
322 sockhost
, target_p
->info
);
328 mo_masktrace(struct Client
*client_p
, struct Client
*source_p
, int parc
,
331 char *name
, *username
, *hostname
, *gecos
;
336 name
= LOCAL_COPY(parv
[1]);
339 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
346 if(parc
> 2 && !EmptyString(parv
[2]))
348 gecos
= LOCAL_COPY(parv
[2]);
354 if((hostname
= strchr(name
, '@')) == NULL
)
356 sendto_one_notice(source_p
, ":Invalid parameters");
362 if((username
= strchr(name
, '!')) == NULL
)
369 if(EmptyString(username
) || EmptyString(hostname
))
371 sendto_one_notice(source_p
, ":Invalid parameters");
376 if (!ConfigFileEntry
.operspy_dont_care_user_info
)
379 rb_strlcpy(buf
, mask
, sizeof(buf
));
380 if(!EmptyString(gecos
)) {
381 rb_strlcat(buf
, " ", sizeof(buf
));
382 rb_strlcat(buf
, gecos
, sizeof(buf
));
385 report_operspy(source_p
, "MASKTRACE", buf
);
387 match_masktrace(source_p
, &global_client_list
, username
, hostname
, name
, gecos
);
389 match_masktrace(source_p
, &lclient_list
, username
, hostname
, name
, gecos
);
391 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);