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.
44 #include "s_newconf.h"
50 #include "supported.h"
52 static const char etrace_desc
[] =
53 "Provides enhanced tracing facilities to opers (ETRACE, CHANTRACE, and MASKTRACE)";
55 static void mo_etrace(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
56 static void me_etrace(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
57 static void m_chantrace(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
58 static void mo_masktrace(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
60 struct Message etrace_msgtab
= {
62 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, {me_etrace
, 0}, {mo_etrace
, 0}}
64 struct Message chantrace_msgtab
= {
65 "CHANTRACE", 0, 0, 0, 0,
66 {mg_ignore
, {m_chantrace
, 2}, mg_ignore
, mg_ignore
, mg_ignore
, {m_chantrace
, 2}}
68 struct Message masktrace_msgtab
= {
69 "MASKTRACE", 0, 0, 0, 0,
70 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, mg_ignore
, {mo_masktrace
, 2}}
76 add_isupport("ETRACE", isupport_string
, "");
84 delete_isupport("ETRACE");
87 mapi_clist_av1 etrace_clist
[] = { &etrace_msgtab
, &chantrace_msgtab
, &masktrace_msgtab
, NULL
};
89 DECLARE_MODULE_AV2(etrace
, _modinit
, _moddeinit
, etrace_clist
, NULL
, NULL
, NULL
, NULL
, etrace_desc
);
91 static void do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
);
92 static void do_etrace_full(struct Client
*source_p
);
93 static void do_single_etrace(struct Client
*source_p
, struct Client
*target_p
);
95 static const char *empty_sockhost
= "255.255.255.255";
96 static const char *spoofed_sockhost
= "0";
100 * parv[1] = options [or target]
104 mo_etrace(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
106 if(parc
> 1 && !EmptyString(parv
[1]))
108 if(!irccmp(parv
[1], "-full"))
109 do_etrace_full(source_p
);
111 else if(!irccmp(parv
[1], "-v6"))
112 do_etrace(source_p
, 0, 1);
113 else if(!irccmp(parv
[1], "-v4"))
114 do_etrace(source_p
, 1, 0);
118 struct Client
*target_p
= find_named_person(parv
[1]);
122 if(!MyClient(target_p
))
123 sendto_one(target_p
, ":%s ENCAP %s ETRACE %s",
124 get_id(source_p
, target_p
),
125 target_p
->servptr
->name
,
126 get_id(target_p
, target_p
));
128 do_single_etrace(source_p
, target_p
);
131 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
132 form_str(ERR_NOSUCHNICK
), parv
[1]);
136 do_etrace(source_p
, 1, 1);
140 me_etrace(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
142 struct Client
*target_p
;
144 if(!IsOper(source_p
) || parc
< 2 || EmptyString(parv
[1]))
147 /* we cant etrace remote clients.. we shouldnt even get sent them */
148 if((target_p
= find_person(parv
[1])) && MyClient(target_p
))
149 do_single_etrace(source_p
, target_p
);
151 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
),
152 target_p
? target_p
->name
: parv
[1]);
156 do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
)
158 struct Client
*target_p
;
161 /* report all direct connections */
162 RB_DLINK_FOREACH(ptr
, lclient_list
.head
)
164 target_p
= ptr
->data
;
167 if((!ipv4
&& GET_SS_FAMILY(&target_p
->localClient
->ip
) == AF_INET
) ||
168 (!ipv6
&& GET_SS_FAMILY(&target_p
->localClient
->ip
) == AF_INET6
))
172 sendto_one(source_p
, form_str(RPL_ETRACE
),
173 me
.name
, source_p
->name
,
174 IsOper(target_p
) ? "Oper" : "User",
175 get_client_class(target_p
),
176 target_p
->name
, target_p
->username
, target_p
->host
,
177 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255",
181 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
185 do_etrace_full(struct Client
*source_p
)
189 RB_DLINK_FOREACH(ptr
, lclient_list
.head
)
191 do_single_etrace(source_p
, ptr
->data
);
194 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
198 * do_single_etrace - searches local clients and displays those matching
200 * input - source client, target client
201 * output - etrace results
202 * side effects - etrace results are displayed
205 do_single_etrace(struct Client
*source_p
, struct Client
*target_p
)
207 /* note, we hide fullcaps for spoofed users, as mirc can often
208 * advertise its internal ip address in the field --fl
210 if(!show_ip(source_p
, target_p
))
211 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
212 me
.name
, source_p
->name
,
213 IsOper(target_p
) ? "Oper" : "User",
214 get_client_class(target_p
),
215 target_p
->name
, target_p
->username
, target_p
->host
,
216 "255.255.255.255", "<hidden> <hidden>", target_p
->info
);
218 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
219 me
.name
, source_p
->name
,
220 IsOper(target_p
) ? "Oper" : "User",
221 get_client_class(target_p
),
222 target_p
->name
, target_p
->username
,
223 target_p
->host
, target_p
->sockhost
,
224 target_p
->localClient
->fullcaps
, target_p
->info
);
228 m_chantrace(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
230 struct Client
*target_p
;
231 struct Channel
*chptr
;
232 struct membership
*msptr
;
233 const char *sockhost
;
240 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
245 if(EmptyString(name
))
247 sendto_one(source_p
, form_str(ERR_NEEDMOREPARAMS
),
248 me
.name
, source_p
->name
, "CHANTRACE");
253 if((chptr
= find_channel(name
)) == NULL
)
255 sendto_one_numeric(source_p
, ERR_NOSUCHCHANNEL
, form_str(ERR_NOSUCHCHANNEL
),
260 /* dont report operspys for nonexistant channels. */
262 report_operspy(source_p
, "CHANTRACE", chptr
->chname
);
264 if(!operspy
&& !IsMember(client_p
, chptr
))
266 sendto_one_numeric(source_p
, ERR_NOTONCHANNEL
, form_str(ERR_NOTONCHANNEL
),
271 RB_DLINK_FOREACH(ptr
, chptr
->members
.head
)
274 target_p
= msptr
->client_p
;
276 if(EmptyString(target_p
->sockhost
))
277 sockhost
= empty_sockhost
;
278 else if(!show_ip(source_p
, target_p
))
279 sockhost
= spoofed_sockhost
;
281 sockhost
= target_p
->sockhost
;
283 sendto_one(source_p
, form_str(RPL_ETRACE
),
284 me
.name
, source_p
->name
,
285 IsOper(target_p
) ? "Oper" : "User",
286 /* class field -- pretend its server.. */
287 target_p
->servptr
->name
,
288 target_p
->name
, target_p
->username
, target_p
->host
,
289 sockhost
, target_p
->info
);
292 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
296 match_masktrace(struct Client
*source_p
, rb_dlink_list
*list
,
297 const char *username
, const char *hostname
, const char *name
,
300 struct Client
*target_p
;
302 const char *sockhost
;
304 RB_DLINK_FOREACH(ptr
, list
->head
)
306 target_p
= ptr
->data
;
307 if(!IsPerson(target_p
))
310 if(EmptyString(target_p
->sockhost
))
311 sockhost
= empty_sockhost
;
312 else if(!show_ip(source_p
, target_p
))
313 sockhost
= spoofed_sockhost
;
315 sockhost
= target_p
->sockhost
;
317 if(match(username
, target_p
->username
) &&
318 (match(hostname
, target_p
->host
) ||
319 match(hostname
, target_p
->orighost
) ||
320 match(hostname
, sockhost
) || match_ips(hostname
, sockhost
)))
322 if(name
!= NULL
&& !match(name
, target_p
->name
))
325 if(gecos
!= NULL
&& !match_esc(gecos
, target_p
->info
))
328 sendto_one(source_p
, form_str(RPL_ETRACE
),
329 me
.name
, source_p
->name
,
330 IsOper(target_p
) ? "Oper" : "User",
331 /* class field -- pretend its server.. */
332 target_p
->servptr
->name
,
333 target_p
->name
, target_p
->username
, target_p
->host
,
334 sockhost
, target_p
->info
);
340 mo_masktrace(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
,
343 char *name
, *username
, *hostname
, *gecos
;
348 name
= LOCAL_COPY(parv
[1]);
351 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
358 if(parc
> 2 && !EmptyString(parv
[2]))
360 gecos
= LOCAL_COPY(parv
[2]);
366 if((hostname
= strchr(name
, '@')) == NULL
)
368 sendto_one_notice(source_p
, ":Invalid parameters");
374 if((username
= strchr(name
, '!')) == NULL
)
381 if(EmptyString(username
) || EmptyString(hostname
))
383 sendto_one_notice(source_p
, ":Invalid parameters");
388 if (!ConfigFileEntry
.operspy_dont_care_user_info
)
391 rb_strlcpy(buf
, mask
, sizeof(buf
));
392 if(!EmptyString(gecos
)) {
393 rb_strlcat(buf
, " ", sizeof(buf
));
394 rb_strlcat(buf
, gecos
, sizeof(buf
));
397 report_operspy(source_p
, "MASKTRACE", buf
);
399 match_masktrace(source_p
, &global_client_list
, username
, hostname
, name
, gecos
);
401 match_masktrace(source_p
, &lclient_list
, username
, hostname
, name
, gecos
);
403 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);