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Commit | Line | Data |
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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd). | |
3 | * m_etrace.c: Gives local opers a trace output with added info. | |
4 | * | |
5 | * Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk> | |
6 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions are | |
10 | * met: | |
11 | * | |
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. | |
19 | * | |
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. | |
31 | * | |
5366977b | 32 | * $Id: m_etrace.c 3161 2007-01-25 07:23:01Z nenolod $ |
212380e3 AC |
33 | */ |
34 | ||
35 | #include "stdinc.h" | |
36 | #include "class.h" | |
37 | #include "hook.h" | |
38 | #include "client.h" | |
39 | #include "hash.h" | |
40 | #include "common.h" | |
41 | #include "hash.h" | |
4562c604 | 42 | #include "match.h" |
212380e3 AC |
43 | #include "ircd.h" |
44 | #include "numeric.h" | |
212380e3 AC |
45 | #include "s_serv.h" |
46 | #include "s_conf.h" | |
47 | #include "s_newconf.h" | |
48 | #include "send.h" | |
49 | #include "msg.h" | |
50 | #include "parse.h" | |
51 | #include "modules.h" | |
77d3d2db | 52 | #include "logger.h" |
0b904d91 | 53 | #include "supported.h" |
212380e3 AC |
54 | |
55 | static int mo_etrace(struct Client *, struct Client *, int, const char **); | |
56 | static int me_etrace(struct Client *, struct Client *, int, const char **); | |
5807e0be | 57 | static int m_chantrace(struct Client *, struct Client *, int, const char **); |
212380e3 AC |
58 | static int mo_masktrace(struct Client *, struct Client *, int, const char **); |
59 | ||
60 | struct Message etrace_msgtab = { | |
61 | "ETRACE", 0, 0, 0, MFLG_SLOW, | |
62 | {mg_ignore, mg_not_oper, mg_ignore, mg_ignore, {me_etrace, 0}, {mo_etrace, 0}} | |
63 | }; | |
64 | struct Message chantrace_msgtab = { | |
65 | "CHANTRACE", 0, 0, 0, MFLG_SLOW, | |
5807e0be | 66 | {mg_ignore, {m_chantrace, 2}, mg_ignore, mg_ignore, mg_ignore, {m_chantrace, 2}} |
212380e3 AC |
67 | }; |
68 | struct Message masktrace_msgtab = { | |
69 | "MASKTRACE", 0, 0, 0, MFLG_SLOW, | |
70 | {mg_ignore, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_masktrace, 2}} | |
71 | }; | |
72 | ||
0b904d91 AC |
73 | static int |
74 | _modinit(void) | |
75 | { | |
76 | add_isupport("ETRACE", isupport_string, ""); | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
81 | static void | |
82 | _moddeinit(void) | |
83 | { | |
84 | delete_isupport("ETRACE"); | |
85 | } | |
86 | ||
212380e3 | 87 | mapi_clist_av1 etrace_clist[] = { &etrace_msgtab, &chantrace_msgtab, &masktrace_msgtab, NULL }; |
0b904d91 | 88 | DECLARE_MODULE_AV1(etrace, _modinit, _moddeinit, etrace_clist, NULL, NULL, "$Revision: 3161 $"); |
212380e3 AC |
89 | |
90 | static void do_etrace(struct Client *source_p, int ipv4, int ipv6); | |
91 | static void do_etrace_full(struct Client *source_p); | |
92 | static void do_single_etrace(struct Client *source_p, struct Client *target_p); | |
93 | ||
94 | static const char *empty_sockhost = "255.255.255.255"; | |
95 | static const char *spoofed_sockhost = "0"; | |
96 | ||
97 | /* | |
98 | * m_etrace | |
212380e3 AC |
99 | * parv[1] = options [or target] |
100 | * parv[2] = [target] | |
101 | */ | |
102 | static int | |
103 | mo_etrace(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
104 | { | |
105 | if(parc > 1 && !EmptyString(parv[1])) | |
106 | { | |
107 | if(!irccmp(parv[1], "-full")) | |
108 | do_etrace_full(source_p); | |
ccda6e3f | 109 | #ifdef RB_IPV6 |
212380e3 AC |
110 | else if(!irccmp(parv[1], "-v6")) |
111 | do_etrace(source_p, 0, 1); | |
112 | else if(!irccmp(parv[1], "-v4")) | |
113 | do_etrace(source_p, 1, 0); | |
114 | #endif | |
115 | else | |
116 | { | |
117 | struct Client *target_p = find_named_person(parv[1]); | |
118 | ||
119 | if(target_p) | |
120 | { | |
121 | if(!MyClient(target_p)) | |
122 | sendto_one(target_p, ":%s ENCAP %s ETRACE %s", | |
123 | get_id(source_p, target_p), | |
c88cdb00 | 124 | target_p->servptr->name, |
212380e3 AC |
125 | get_id(target_p, target_p)); |
126 | else | |
127 | do_single_etrace(source_p, target_p); | |
128 | } | |
129 | else | |
130 | sendto_one_numeric(source_p, ERR_NOSUCHNICK, | |
131 | form_str(ERR_NOSUCHNICK), parv[1]); | |
132 | } | |
133 | } | |
134 | else | |
135 | do_etrace(source_p, 1, 1); | |
136 | ||
137 | return 0; | |
138 | } | |
139 | ||
140 | static int | |
141 | me_etrace(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
142 | { | |
143 | struct Client *target_p; | |
144 | ||
145 | if(!IsOper(source_p) || parc < 2 || EmptyString(parv[1])) | |
146 | return 0; | |
147 | ||
148 | /* we cant etrace remote clients.. we shouldnt even get sent them */ | |
149 | if((target_p = find_person(parv[1])) && MyClient(target_p)) | |
150 | do_single_etrace(source_p, target_p); | |
151 | ||
55abcbb2 | 152 | sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), |
212380e3 AC |
153 | target_p ? target_p->name : parv[1]); |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
158 | static void | |
159 | do_etrace(struct Client *source_p, int ipv4, int ipv6) | |
160 | { | |
161 | struct Client *target_p; | |
5b96d9a6 | 162 | rb_dlink_node *ptr; |
212380e3 AC |
163 | |
164 | /* report all direct connections */ | |
5b96d9a6 | 165 | RB_DLINK_FOREACH(ptr, lclient_list.head) |
212380e3 AC |
166 | { |
167 | target_p = ptr->data; | |
168 | ||
ccda6e3f | 169 | #ifdef RB_IPV6 |
212380e3 AC |
170 | if((!ipv4 && target_p->localClient->ip.ss_family == AF_INET) || |
171 | (!ipv6 && target_p->localClient->ip.ss_family == AF_INET6)) | |
172 | continue; | |
173 | #endif | |
174 | ||
175 | sendto_one(source_p, form_str(RPL_ETRACE), | |
55abcbb2 KB |
176 | me.name, source_p->name, |
177 | IsOper(target_p) ? "Oper" : "User", | |
212380e3 AC |
178 | get_client_class(target_p), |
179 | target_p->name, target_p->username, target_p->host, | |
180 | show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255", | |
181 | target_p->info); | |
182 | } | |
183 | ||
184 | sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name); | |
185 | } | |
186 | ||
187 | static void | |
188 | do_etrace_full(struct Client *source_p) | |
189 | { | |
5b96d9a6 | 190 | rb_dlink_node *ptr; |
212380e3 | 191 | |
5b96d9a6 | 192 | RB_DLINK_FOREACH(ptr, lclient_list.head) |
212380e3 AC |
193 | { |
194 | do_single_etrace(source_p, ptr->data); | |
195 | } | |
196 | ||
197 | sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name); | |
198 | } | |
199 | ||
200 | /* | |
201 | * do_single_etrace - searches local clients and displays those matching | |
202 | * a pattern | |
203 | * input - source client, target client | |
204 | * output - etrace results | |
205 | * side effects - etrace results are displayed | |
206 | */ | |
207 | static void | |
208 | do_single_etrace(struct Client *source_p, struct Client *target_p) | |
209 | { | |
210 | /* note, we hide fullcaps for spoofed users, as mirc can often | |
211 | * advertise its internal ip address in the field --fl | |
212 | */ | |
213 | if(!show_ip(source_p, target_p)) | |
214 | sendto_one(source_p, form_str(RPL_ETRACEFULL), | |
55abcbb2 | 215 | me.name, source_p->name, |
212380e3 AC |
216 | IsOper(target_p) ? "Oper" : "User", |
217 | get_client_class(target_p), | |
55abcbb2 | 218 | target_p->name, target_p->username, target_p->host, |
212380e3 AC |
219 | "255.255.255.255", "<hidden> <hidden>", target_p->info); |
220 | else | |
221 | sendto_one(source_p, form_str(RPL_ETRACEFULL), | |
55abcbb2 | 222 | me.name, source_p->name, |
212380e3 AC |
223 | IsOper(target_p) ? "Oper" : "User", |
224 | get_client_class(target_p), | |
55abcbb2 | 225 | target_p->name, target_p->username, |
212380e3 AC |
226 | target_p->host, target_p->sockhost, |
227 | target_p->localClient->fullcaps, target_p->info); | |
228 | } | |
229 | ||
230 | static int | |
5807e0be | 231 | m_chantrace(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
232 | { |
233 | struct Client *target_p; | |
234 | struct Channel *chptr; | |
235 | struct membership *msptr; | |
236 | const char *sockhost; | |
237 | const char *name; | |
5b96d9a6 | 238 | rb_dlink_node *ptr; |
212380e3 AC |
239 | int operspy = 0; |
240 | ||
241 | name = parv[1]; | |
242 | ||
243 | if(IsOperSpy(source_p) && parv[1][0] == '!') | |
244 | { | |
245 | name++; | |
246 | operspy = 1; | |
247 | ||
248 | if(EmptyString(name)) | |
249 | { | |
250 | sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), | |
251 | me.name, source_p->name, "CHANTRACE"); | |
252 | return 0; | |
253 | } | |
254 | } | |
255 | ||
256 | if((chptr = find_channel(name)) == NULL) | |
257 | { | |
258 | sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), | |
259 | name); | |
260 | return 0; | |
261 | } | |
262 | ||
263 | /* dont report operspys for nonexistant channels. */ | |
264 | if(operspy) | |
265 | report_operspy(source_p, "CHANTRACE", chptr->chname); | |
266 | ||
267 | if(!operspy && !IsMember(client_p, chptr)) | |
268 | { | |
269 | sendto_one_numeric(source_p, ERR_NOTONCHANNEL, form_str(ERR_NOTONCHANNEL), | |
270 | chptr->chname); | |
271 | return 0; | |
272 | } | |
273 | ||
5b96d9a6 | 274 | RB_DLINK_FOREACH(ptr, chptr->members.head) |
212380e3 AC |
275 | { |
276 | msptr = ptr->data; | |
277 | target_p = msptr->client_p; | |
278 | ||
279 | if(EmptyString(target_p->sockhost)) | |
280 | sockhost = empty_sockhost; | |
281 | else if(!show_ip(source_p, target_p)) | |
282 | sockhost = spoofed_sockhost; | |
283 | else | |
284 | sockhost = target_p->sockhost; | |
285 | ||
286 | sendto_one(source_p, form_str(RPL_ETRACE), | |
55abcbb2 | 287 | me.name, source_p->name, |
212380e3 AC |
288 | IsOper(target_p) ? "Oper" : "User", |
289 | /* class field -- pretend its server.. */ | |
290 | target_p->servptr->name, | |
291 | target_p->name, target_p->username, target_p->host, | |
292 | sockhost, target_p->info); | |
293 | } | |
294 | ||
295 | sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name); | |
296 | return 0; | |
297 | } | |
298 | ||
299 | static void | |
5b96d9a6 | 300 | match_masktrace(struct Client *source_p, rb_dlink_list *list, |
212380e3 AC |
301 | const char *username, const char *hostname, const char *name, |
302 | const char *gecos) | |
303 | { | |
304 | struct Client *target_p; | |
5b96d9a6 | 305 | rb_dlink_node *ptr; |
55abcbb2 KB |
306 | const char *sockhost; |
307 | ||
5b96d9a6 | 308 | RB_DLINK_FOREACH(ptr, list->head) |
212380e3 AC |
309 | { |
310 | target_p = ptr->data; | |
311 | if(!IsPerson(target_p)) | |
312 | continue; | |
55abcbb2 | 313 | |
212380e3 AC |
314 | if(EmptyString(target_p->sockhost)) |
315 | sockhost = empty_sockhost; | |
316 | else if(!show_ip(source_p, target_p)) | |
317 | sockhost = spoofed_sockhost; | |
318 | else | |
319 | sockhost = target_p->sockhost; | |
320 | ||
321 | if(match(username, target_p->username) && | |
322 | (match(hostname, target_p->host) || | |
323 | match(hostname, target_p->orighost) || | |
324 | match(hostname, sockhost) || match_ips(hostname, sockhost))) | |
325 | { | |
326 | if(name != NULL && !match(name, target_p->name)) | |
327 | continue; | |
328 | ||
39b23540 | 329 | if(gecos != NULL && !match_esc(gecos, target_p->info)) |
212380e3 | 330 | continue; |
55abcbb2 | 331 | |
212380e3 | 332 | sendto_one(source_p, form_str(RPL_ETRACE), |
55abcbb2 | 333 | me.name, source_p->name, |
212380e3 AC |
334 | IsOper(target_p) ? "Oper" : "User", |
335 | /* class field -- pretend its server.. */ | |
336 | target_p->servptr->name, | |
337 | target_p->name, target_p->username, target_p->host, | |
338 | sockhost, target_p->info); | |
339 | } | |
340 | } | |
341 | } | |
342 | ||
343 | static int | |
55abcbb2 | 344 | mo_masktrace(struct Client *client_p, struct Client *source_p, int parc, |
212380e3 AC |
345 | const char *parv[]) |
346 | { | |
347 | char *name, *username, *hostname, *gecos; | |
348 | const char *mask; | |
349 | int operspy = 0; | |
350 | ||
55abcbb2 KB |
351 | mask = parv[1]; |
352 | name = LOCAL_COPY(parv[1]); | |
212380e3 AC |
353 | collapse(name); |
354 | ||
355 | if(IsOperSpy(source_p) && parv[1][0] == '!') | |
356 | { | |
357 | name++; | |
358 | mask++; | |
359 | operspy = 1; | |
55abcbb2 KB |
360 | } |
361 | ||
212380e3 AC |
362 | if(parc > 2 && !EmptyString(parv[2])) |
363 | { | |
364 | gecos = LOCAL_COPY(parv[2]); | |
365 | collapse_esc(gecos); | |
366 | } else | |
367 | gecos = NULL; | |
55abcbb2 | 368 | |
212380e3 AC |
369 | |
370 | if((hostname = strchr(name, '@')) == NULL) | |
371 | { | |
5366977b | 372 | sendto_one_notice(source_p, ":Invalid parameters"); |
212380e3 AC |
373 | return 0; |
374 | } | |
375 | ||
376 | *hostname++ = '\0'; | |
55abcbb2 | 377 | |
212380e3 AC |
378 | if((username = strchr(name, '!')) == NULL) |
379 | { | |
380 | username = name; | |
381 | name = NULL; | |
382 | } else | |
383 | *username++ = '\0'; | |
384 | ||
385 | if(EmptyString(username) || EmptyString(hostname)) | |
386 | { | |
5366977b | 387 | sendto_one_notice(source_p, ":Invalid parameters"); |
212380e3 AC |
388 | return 0; |
389 | } | |
55abcbb2 | 390 | |
212380e3 AC |
391 | if(operspy) { |
392 | if (!ConfigFileEntry.operspy_dont_care_user_info) | |
393 | { | |
394 | char buf[512]; | |
f427c8b0 | 395 | rb_strlcpy(buf, mask, sizeof(buf)); |
212380e3 | 396 | if(!EmptyString(gecos)) { |
1f9de103 VY |
397 | rb_strlcat(buf, " ", sizeof(buf)); |
398 | rb_strlcat(buf, gecos, sizeof(buf)); | |
55abcbb2 | 399 | } |
212380e3 | 400 | |
55abcbb2 | 401 | report_operspy(source_p, "MASKTRACE", buf); |
212380e3 | 402 | } |
55abcbb2 | 403 | match_masktrace(source_p, &global_client_list, username, hostname, name, gecos); |
212380e3 AC |
404 | } else |
405 | match_masktrace(source_p, &lclient_list, username, hostname, name, gecos); | |
406 | ||
55abcbb2 | 407 | sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name); |
212380e3 AC |
408 | return 0; |
409 | } |