2 * ircd-ratbox: A slightly useful ircd.
3 * m_dline.c: Bans/unbans a user.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: m_dline.c 3225 2007-03-04 23:42:55Z jilles $
37 #include "s_newconf.h"
46 static int mo_dline(struct Client
*, struct Client
*, int, const char **);
47 static int me_dline(struct Client
*, struct Client
*, int, const char **);
48 static int mo_undline(struct Client
*, struct Client
*, int, const char **);
49 static int me_undline(struct Client
*, struct Client
*, int, const char **);
51 struct Message dline_msgtab
= {
52 "DLINE", 0, 0, 0, MFLG_SLOW
,
53 {mg_unreg
, mg_not_oper
, mg_ignore
, mg_ignore
, {me_dline
, 3}, {mo_dline
, 2}}
55 struct Message undline_msgtab
= {
56 "UNDLINE", 0, 0, 0, MFLG_SLOW
,
57 {mg_unreg
, mg_not_oper
, mg_ignore
, mg_ignore
, {me_undline
, 1}, {mo_undline
, 2}}
60 mapi_clist_av1 dline_clist
[] = { &dline_msgtab
, &undline_msgtab
, NULL
};
61 DECLARE_MODULE_AV1(dline
, NULL
, NULL
, dline_clist
, NULL
, NULL
, "$Revision: 3225 $");
63 static int valid_comment(char *comment
);
64 static int flush_write(struct Client
*, FILE *, char *, char *);
65 static int remove_temp_dline(struct ConfItem
*);
66 static int apply_dline(struct Client
*, const char *, int, char *);
67 static int apply_undline(struct Client
*, const char *);
71 * parv[1] - dline to add
75 mo_dline(struct Client
*client_p
, struct Client
*source_p
,
76 int parc
, const char *parv
[])
78 char def
[] = "No Reason";
81 char cidr_form_host
[HOSTLEN
+ 1];
83 const char *target_server
= NULL
;
86 if(!IsOperK(source_p
))
88 sendto_one(source_p
, form_str(ERR_NOPRIVS
),
89 me
.name
, source_p
->name
, "kline");
93 if((tdline_time
= valid_temp_time(parv
[loc
])) >= 0)
97 rb_strlcpy(cidr_form_host
, dlhost
, sizeof(cidr_form_host
));
101 if(parc
>= loc
+2 && !irccmp(parv
[loc
], "ON"))
103 if(!IsOperRemoteBan(source_p
))
105 sendto_one(source_p
, form_str(ERR_NOPRIVS
),
106 me
.name
, source_p
->name
, "remoteban");
110 target_server
= parv
[loc
+1];
114 if(parc
>= loc
+ 1 && !EmptyString(parv
[loc
]))
115 reason
= LOCAL_COPY(parv
[loc
]);
117 if(target_server
!= NULL
)
119 sendto_match_servs(source_p
, target_server
,
121 "ENCAP %s DLINE %d %s :%s",
122 target_server
, tdline_time
, dlhost
, reason
);
124 if(!match(target_server
, me
.name
))
128 apply_dline(source_p
, dlhost
, tdline_time
, reason
);
136 * parv[1] = dline to remove
139 mo_undline(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
142 const char *target_server
= NULL
;
144 if(!IsOperK(source_p
))
146 sendto_one(source_p
, form_str(ERR_NOPRIVS
),
147 me
.name
, source_p
->name
, "unkline");
153 if(parc
>= 4 && !irccmp(parv
[2], "ON"))
155 if(!IsOperRemoteBan(source_p
))
157 sendto_one(source_p
, form_str(ERR_NOPRIVS
),
158 me
.name
, source_p
->name
, "remoteban");
162 target_server
= parv
[3];
163 sendto_match_servs(source_p
, target_server
,
165 "ENCAP %s UNDLINE %s",
166 target_server
, cidr
);
168 if(!match(target_server
, me
.name
))
172 apply_undline(source_p
, cidr
);
178 me_dline(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char **parv
)
180 int tdline_time
= atoi(parv
[1]);
181 /* Since this is coming over a server link, assume that the originating
182 * server did the relevant permission/sanity checks...
185 if(!IsPerson(source_p
))
188 if(!find_shared_conf(source_p
->username
, source_p
->host
,
189 source_p
->servptr
->name
, tdline_time
> 0 ? SHARED_TDLINE
: SHARED_PDLINE
))
192 apply_dline(source_p
, parv
[2], tdline_time
, LOCAL_COPY(parv
[3]));
199 me_undline(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char **parv
)
201 if(!IsPerson(source_p
))
204 if(!find_shared_conf(source_p
->username
, source_p
->host
,
205 source_p
->servptr
->name
, SHARED_UNDLINE
))
208 apply_undline(source_p
, parv
[1]);
214 apply_dline(struct Client
*source_p
, const char *dlhost
, int tdline_time
, char *reason
)
216 struct ConfItem
*aconf
;
218 char dlbuffer
[IRCD_BUFSIZE
];
219 const char *current_date
;
220 struct rb_sockaddr_storage daddr
;
221 int t
= AF_INET
, ty
, b
;
224 ty
= parse_netmask(dlhost
, (struct sockaddr
*)&daddr
, &b
);
227 sendto_one(source_p
, ":%s NOTICE %s :Invalid D-Line",
228 me
.name
, source_p
->name
);
238 /* This means dlines wider than /16 cannot be set remotely */
239 if(IsOperAdmin(source_p
))
243 sendto_one_notice(source_p
,
244 ":For safety, bitmasks less than 8 require conf access.");
252 sendto_one_notice(source_p
,
253 ":Dline bitmasks less than 16 are for admins only.");
258 if(!valid_comment(reason
))
261 ":%s NOTICE %s :Invalid character '\"' in comment",
262 me
.name
, source_p
->name
);
266 if(ConfigFileEntry
.non_redundant_klines
)
268 if((aconf
= find_dline((struct sockaddr
*)&daddr
, t
)) != NULL
)
271 parse_netmask(aconf
->host
, NULL
, &bx
);
274 creason
= aconf
->passwd
? aconf
->passwd
: "<No Reason>";
275 if(IsConfExemptKline(aconf
))
277 ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s",
278 me
.name
, source_p
->name
, dlhost
, aconf
->host
, creason
);
281 ":%s NOTICE %s :[%s] already D-lined by [%s] - %s",
282 me
.name
, source_p
->name
, dlhost
, aconf
->host
, creason
);
289 current_date
= smalldate();
292 aconf
->status
= CONF_DLINE
;
293 aconf
->host
= rb_strdup(dlhost
);
295 /* Look for an oper reason */
296 if((oper_reason
= strchr(reason
, '|')) != NULL
)
301 if(!EmptyString(oper_reason
))
302 aconf
->spasswd
= rb_strdup(oper_reason
);
307 rb_snprintf(dlbuffer
, sizeof(dlbuffer
),
308 "Temporary D-line %d min. - %s (%s)",
309 (int) (tdline_time
/ 60), reason
, current_date
);
310 aconf
->passwd
= rb_strdup(dlbuffer
);
311 aconf
->hold
= rb_current_time() + tdline_time
;
312 add_temp_dline(aconf
);
314 if(EmptyString(oper_reason
))
316 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
317 "%s added temporary %d min. D-Line for [%s] [%s]",
318 get_oper_name(source_p
), tdline_time
/ 60,
319 aconf
->host
, reason
);
320 ilog(L_KLINE
, "D %s %d %s %s",
321 get_oper_name(source_p
), tdline_time
/ 60,
322 aconf
->host
, reason
);
326 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
327 "%s added temporary %d min. D-Line for [%s] [%s|%s]",
328 get_oper_name(source_p
), tdline_time
/ 60,
329 aconf
->host
, reason
, oper_reason
);
330 ilog(L_KLINE
, "D %s %d %s %s|%s",
331 get_oper_name(source_p
), tdline_time
/ 60,
332 aconf
->host
, reason
, oper_reason
);
335 sendto_one(source_p
, ":%s NOTICE %s :Added temporary %d min. D-Line for [%s]",
336 me
.name
, source_p
->name
, tdline_time
/ 60, aconf
->host
);
340 rb_snprintf(dlbuffer
, sizeof(dlbuffer
), "%s (%s)", reason
, current_date
);
341 aconf
->passwd
= rb_strdup(dlbuffer
);
342 add_conf_by_address(aconf
->host
, CONF_DLINE
, NULL
, NULL
, aconf
);
343 write_confitem(DLINE_TYPE
, source_p
, NULL
, aconf
->host
, reason
,
344 oper_reason
, current_date
, 0);
351 apply_undline(struct Client
*source_p
, const char *cidr
)
355 char buf
[BUFSIZE
], buff
[BUFSIZE
], temppath
[BUFSIZE
], *p
;
356 const char *filename
, *found_cidr
;
357 int pairme
= NO
, error_on_write
= NO
;
359 struct ConfItem
*aconf
;
361 if(parse_netmask(cidr
, NULL
, NULL
) == HM_HOST
)
363 sendto_one_notice(source_p
, ":Invalid D-Line");
367 rb_snprintf(temppath
, sizeof(temppath
), "%s.tmp", ConfigFileEntry
.dlinefile
);
369 aconf
= find_exact_conf_by_address(cidr
, CONF_DLINE
, NULL
);
372 sendto_one_notice(source_p
, ":No D-Line for %s", cidr
);
376 rb_strlcpy(buf
, aconf
->host
, sizeof buf
);
377 if(remove_temp_dline(aconf
))
380 ":%s NOTICE %s :Un-dlined [%s] from temporary D-lines",
381 me
.name
, source_p
->name
, buf
);
382 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
383 "%s has removed the temporary D-Line for: [%s]",
384 get_oper_name(source_p
), buf
);
385 ilog(L_KLINE
, "UD %s %s", get_oper_name(source_p
), buf
);
389 filename
= get_conf_name(DLINE_TYPE
);
391 if((in
= fopen(filename
, "r")) == 0)
393 sendto_one(source_p
, ":%s NOTICE %s :Cannot open %s", me
.name
, source_p
->name
, filename
);
398 if((out
= fopen(temppath
, "w")) == 0)
400 sendto_one(source_p
, ":%s NOTICE %s :Cannot open %s", me
.name
, source_p
->name
, temppath
);
408 while (fgets(buf
, sizeof(buf
), in
))
410 rb_strlcpy(buff
, buf
, sizeof(buff
));
412 if((p
= strchr(buff
, '\n')) != NULL
)
415 if((*buff
== '\0') || (*buff
== '#'))
418 flush_write(source_p
, out
, buf
, temppath
);
422 if((found_cidr
= getfield(buff
)) == NULL
)
425 flush_write(source_p
, out
, buf
, temppath
);
429 if(irccmp(found_cidr
, aconf
->host
) == 0)
436 flush_write(source_p
, out
, buf
, temppath
);
443 error_on_write
= YES
;
448 ":%s NOTICE %s :Couldn't write D-line file, aborted",
449 me
.name
, source_p
->name
);
454 sendto_one_notice(source_p
, ":Cannot find D-Line for %s in file",
458 (void) unlink(temppath
);
463 if (rename(temppath
, filename
))
465 sendto_one_notice(source_p
, ":Couldn't rename temp file, aborted");
469 sendto_one(source_p
, ":%s NOTICE %s :D-Line for [%s] is removed", me
.name
, source_p
->name
, aconf
->host
);
470 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
471 "%s has removed the D-Line for: [%s]", get_oper_name(source_p
), aconf
->host
);
472 ilog(L_KLINE
, "UD %s %s", get_oper_name(source_p
), aconf
->host
);
473 delete_one_address_conf(aconf
->host
, aconf
);
480 * inputs - pointer to client
481 * - pointer to comment
482 * output - 0 if no valid comment, 1 if valid
483 * side effects - NONE
486 valid_comment(char *comment
)
488 if(strchr(comment
, '"'))
491 if(strlen(comment
) > BANREASONLEN
)
492 comment
[BANREASONLEN
] = '\0';
500 * inputs - pointer to client structure of oper requesting unkline
501 * - out is the file descriptor
502 * - buf is the buffer to write
503 * - ntowrite is the expected number of character to be written
504 * - temppath is the temporary file name to be written
505 * output - YES for error on write
507 * side effects - if successful, the buf is written to output file
508 * if a write failure happesn, and the file pointed to
509 * by temppath, if its non NULL, is removed.
511 * The idea here is, to be as robust as possible when writing to the
517 flush_write(struct Client
*source_p
, FILE * out
, char *buf
, char *temppath
)
519 int error_on_write
= (fputs(buf
, out
) < 0) ? YES
: NO
;
523 sendto_one_notice(source_p
, ":Unable to write to %s", temppath
);
526 (void) unlink(temppath
);
528 return (error_on_write
);
531 /* remove_temp_dline()
533 * inputs - confitem to undline
535 * side effects - tries to undline anything that matches
538 remove_temp_dline(struct ConfItem
*aconf
)
543 for (i
= 0; i
< LAST_TEMP_TYPE
; i
++)
545 RB_DLINK_FOREACH(ptr
, temp_dlines
[i
].head
)
547 if (aconf
== ptr
->data
)
549 rb_dlinkDestroy(ptr
, &temp_dlines
[i
]);
550 delete_one_address_conf(aconf
->host
, aconf
);