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 $
42 #include "irc_string.h"
48 #include "s_newconf.h"
54 static int mo_etrace(struct Client
*, struct Client
*, int, const char **);
55 static int me_etrace(struct Client
*, struct Client
*, int, const char **);
56 static int mo_chantrace(struct Client
*, struct Client
*, int, const char **);
57 static int mo_masktrace(struct Client
*, struct Client
*, int, const char **);
59 struct Message etrace_msgtab
= {
60 "ETRACE", 0, 0, 0, MFLG_SLOW
,
61 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, {me_etrace
, 0}, {mo_etrace
, 0}}
63 struct Message chantrace_msgtab
= {
64 "CHANTRACE", 0, 0, 0, MFLG_SLOW
,
65 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, mg_ignore
, {mo_chantrace
, 2}}
67 struct Message masktrace_msgtab
= {
68 "MASKTRACE", 0, 0, 0, MFLG_SLOW
,
69 {mg_ignore
, mg_not_oper
, mg_ignore
, mg_ignore
, mg_ignore
, {mo_masktrace
, 2}}
72 mapi_clist_av1 etrace_clist
[] = { &etrace_msgtab
, &chantrace_msgtab
, &masktrace_msgtab
, NULL
};
73 DECLARE_MODULE_AV1(etrace
, NULL
, NULL
, etrace_clist
, NULL
, NULL
, "$Revision: 3161 $");
75 static void do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
);
76 static void do_etrace_full(struct Client
*source_p
);
77 static void do_single_etrace(struct Client
*source_p
, struct Client
*target_p
);
79 static const char *empty_sockhost
= "255.255.255.255";
80 static const char *spoofed_sockhost
= "0";
84 * parv[0] = sender prefix
85 * parv[1] = options [or target]
89 mo_etrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
91 if(parc
> 1 && !EmptyString(parv
[1]))
93 if(!irccmp(parv
[1], "-full"))
94 do_etrace_full(source_p
);
96 else if(!irccmp(parv
[1], "-v6"))
97 do_etrace(source_p
, 0, 1);
98 else if(!irccmp(parv
[1], "-v4"))
99 do_etrace(source_p
, 1, 0);
103 struct Client
*target_p
= find_named_person(parv
[1]);
107 if(!MyClient(target_p
))
108 sendto_one(target_p
, ":%s ENCAP %s ETRACE %s",
109 get_id(source_p
, target_p
),
110 target_p
->servptr
->name
,
111 get_id(target_p
, target_p
));
113 do_single_etrace(source_p
, target_p
);
116 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
117 form_str(ERR_NOSUCHNICK
), parv
[1]);
121 do_etrace(source_p
, 1, 1);
127 me_etrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
129 struct Client
*target_p
;
131 if(!IsOper(source_p
) || parc
< 2 || EmptyString(parv
[1]))
134 /* we cant etrace remote clients.. we shouldnt even get sent them */
135 if((target_p
= find_person(parv
[1])) && MyClient(target_p
))
136 do_single_etrace(source_p
, target_p
);
138 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
),
139 target_p
? target_p
->name
: parv
[1]);
145 do_etrace(struct Client
*source_p
, int ipv4
, int ipv6
)
147 struct Client
*target_p
;
150 /* report all direct connections */
151 DLINK_FOREACH(ptr
, lclient_list
.head
)
153 target_p
= ptr
->data
;
156 if((!ipv4
&& target_p
->localClient
->ip
.ss_family
== AF_INET
) ||
157 (!ipv6
&& target_p
->localClient
->ip
.ss_family
== AF_INET6
))
161 sendto_one(source_p
, form_str(RPL_ETRACE
),
162 me
.name
, source_p
->name
,
163 IsOper(target_p
) ? "Oper" : "User",
164 get_client_class(target_p
),
165 target_p
->name
, target_p
->username
, target_p
->host
,
166 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255",
170 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
174 do_etrace_full(struct Client
*source_p
)
178 DLINK_FOREACH(ptr
, lclient_list
.head
)
180 do_single_etrace(source_p
, ptr
->data
);
183 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
187 * do_single_etrace - searches local clients and displays those matching
189 * input - source client, target client
190 * output - etrace results
191 * side effects - etrace results are displayed
194 do_single_etrace(struct Client
*source_p
, struct Client
*target_p
)
196 /* note, we hide fullcaps for spoofed users, as mirc can often
197 * advertise its internal ip address in the field --fl
199 if(!show_ip(source_p
, target_p
))
200 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
201 me
.name
, source_p
->name
,
202 IsOper(target_p
) ? "Oper" : "User",
203 get_client_class(target_p
),
204 target_p
->name
, target_p
->username
, target_p
->host
,
205 "255.255.255.255", "<hidden> <hidden>", target_p
->info
);
207 sendto_one(source_p
, form_str(RPL_ETRACEFULL
),
208 me
.name
, source_p
->name
,
209 IsOper(target_p
) ? "Oper" : "User",
210 get_client_class(target_p
),
211 target_p
->name
, target_p
->username
,
212 target_p
->host
, target_p
->sockhost
,
213 target_p
->localClient
->fullcaps
, target_p
->info
);
217 mo_chantrace(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
219 struct Client
*target_p
;
220 struct Channel
*chptr
;
221 struct membership
*msptr
;
222 const char *sockhost
;
229 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
234 if(EmptyString(name
))
236 sendto_one(source_p
, form_str(ERR_NEEDMOREPARAMS
),
237 me
.name
, source_p
->name
, "CHANTRACE");
242 if((chptr
= find_channel(name
)) == NULL
)
244 sendto_one_numeric(source_p
, ERR_NOSUCHCHANNEL
, form_str(ERR_NOSUCHCHANNEL
),
249 /* dont report operspys for nonexistant channels. */
251 report_operspy(source_p
, "CHANTRACE", chptr
->chname
);
253 if(!operspy
&& !IsMember(client_p
, chptr
))
255 sendto_one_numeric(source_p
, ERR_NOTONCHANNEL
, form_str(ERR_NOTONCHANNEL
),
260 DLINK_FOREACH(ptr
, chptr
->members
.head
)
263 target_p
= msptr
->client_p
;
265 if(EmptyString(target_p
->sockhost
))
266 sockhost
= empty_sockhost
;
267 else if(!show_ip(source_p
, target_p
))
268 sockhost
= spoofed_sockhost
;
270 sockhost
= target_p
->sockhost
;
272 sendto_one(source_p
, form_str(RPL_ETRACE
),
273 me
.name
, source_p
->name
,
274 IsOper(target_p
) ? "Oper" : "User",
275 /* class field -- pretend its server.. */
276 target_p
->servptr
->name
,
277 target_p
->name
, target_p
->username
, target_p
->host
,
278 sockhost
, target_p
->info
);
281 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);
286 match_masktrace(struct Client
*source_p
, dlink_list
*list
,
287 const char *username
, const char *hostname
, const char *name
,
290 struct Client
*target_p
;
292 const char *sockhost
;
293 char *mangle_gecos
= NULL
;
297 if(strstr(gecos
, "\\s"))
299 char *tmp
= LOCAL_COPY(gecos
);
304 if(*orig
== '\\' && *(orig
+ 1) != '\0')
306 if(*(orig
+ 1) == 's')
311 /* otherwise skip that and the escaped
312 * character after it, so we dont mistake
326 mangle_gecos
= LOCAL_COPY(tmp
);
329 mangle_gecos
= LOCAL_COPY(gecos
);
332 DLINK_FOREACH(ptr
, list
->head
)
334 target_p
= ptr
->data
;
335 if(!IsPerson(target_p
))
338 if(EmptyString(target_p
->sockhost
))
339 sockhost
= empty_sockhost
;
340 else if(!show_ip(source_p
, target_p
))
341 sockhost
= spoofed_sockhost
;
343 sockhost
= target_p
->sockhost
;
345 if(match(username
, target_p
->username
) &&
346 (match(hostname
, target_p
->host
) ||
347 match(hostname
, target_p
->orighost
) ||
348 match(hostname
, sockhost
) || match_ips(hostname
, sockhost
)))
350 if(name
!= NULL
&& !match(name
, target_p
->name
))
353 if(mangle_gecos
!= NULL
&& !match_esc(mangle_gecos
, target_p
->info
))
356 sendto_one(source_p
, form_str(RPL_ETRACE
),
357 me
.name
, source_p
->name
,
358 IsOper(target_p
) ? "Oper" : "User",
359 /* class field -- pretend its server.. */
360 target_p
->servptr
->name
,
361 target_p
->name
, target_p
->username
, target_p
->host
,
362 sockhost
, target_p
->info
);
368 mo_masktrace(struct Client
*client_p
, struct Client
*source_p
, int parc
,
371 char *name
, *username
, *hostname
, *gecos
;
376 name
= LOCAL_COPY(parv
[1]);
379 if(IsOperSpy(source_p
) && parv
[1][0] == '!')
386 if(parc
> 2 && !EmptyString(parv
[2]))
388 gecos
= LOCAL_COPY(parv
[2]);
394 if((hostname
= strchr(name
, '@')) == NULL
)
396 sendto_one_notice(source_p
, ":Invalid parameters");
402 if((username
= strchr(name
, '!')) == NULL
)
409 if(EmptyString(username
) || EmptyString(hostname
))
411 sendto_one_notice(source_p
, ":Invalid parameters");
416 if (!ConfigFileEntry
.operspy_dont_care_user_info
)
419 strlcpy(buf
, mask
, sizeof(buf
));
420 if(!EmptyString(gecos
)) {
421 strlcat(buf
, " ", sizeof(buf
));
422 strlcat(buf
, gecos
, sizeof(buf
));
425 report_operspy(source_p
, "MASKTRACE", buf
);
427 match_masktrace(source_p
, &global_client_list
, username
, hostname
, name
, gecos
);
429 match_masktrace(source_p
, &lclient_list
, username
, hostname
, name
, gecos
);
431 sendto_one_numeric(source_p
, RPL_ENDOFTRACE
, form_str(RPL_ENDOFTRACE
), me
.name
);