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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * class.c: Controls connection classes. | |
4 | * | |
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 | |
8 | * | |
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. | |
13 | * | |
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. | |
18 | * | |
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 | |
22 | * USA | |
23 | * | |
24 | * $Id: class.c 254 2005-09-21 23:35:12Z nenolod $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "config.h" | |
29 | ||
212380e3 AC |
30 | #include "class.h" |
31 | #include "client.h" | |
32 | #include "common.h" | |
33 | #include "ircd.h" | |
34 | #include "numeric.h" | |
35 | #include "s_conf.h" | |
36 | #include "s_newconf.h" | |
37 | #include "send.h" | |
4562c604 | 38 | #include "match.h" |
212380e3 AC |
39 | |
40 | #define BAD_CONF_CLASS -1 | |
41 | #define BAD_PING -2 | |
42 | #define BAD_CLIENT_CLASS -3 | |
43 | ||
330fc5c1 | 44 | rb_dlink_list class_list; |
212380e3 AC |
45 | struct Class *default_class; |
46 | ||
1087485c JT |
47 | struct Class * |
48 | make_class(void) | |
49 | { | |
50 | struct Class *tmp; | |
51 | ||
52 | tmp = rb_malloc(sizeof(struct Class)); | |
53 | ||
54 | ConFreq(tmp) = DEFAULT_CONNECTFREQUENCY; | |
55 | PingFreq(tmp) = DEFAULT_PINGFREQUENCY; | |
56 | MaxUsers(tmp) = 1; | |
57 | MaxSendq(tmp) = DEFAULT_SENDQ; | |
9a595811 | 58 | MaxSendqHard(tmp) = DEFAULT_SENDQ * 4; |
1087485c JT |
59 | |
60 | tmp->ip_limits = rb_new_patricia(PATRICIA_BITS); | |
61 | return tmp; | |
62 | } | |
63 | ||
64 | void | |
65 | free_class(struct Class *tmp) | |
66 | { | |
67 | if(tmp->ip_limits) | |
68 | rb_destroy_patricia(tmp->ip_limits, NULL); | |
69 | ||
70 | rb_free(tmp->class_name); | |
71 | rb_free(tmp); | |
72 | ||
212380e3 AC |
73 | } |
74 | ||
75 | /* | |
76 | * get_conf_ping | |
77 | * | |
78 | * inputs - pointer to struct ConfItem | |
79 | * output - ping frequency | |
80 | * side effects - NONE | |
81 | */ | |
82 | static int | |
83 | get_conf_ping(struct ConfItem *aconf) | |
84 | { | |
85 | if((aconf) && ClassPtr(aconf)) | |
86 | return (ConfPingFreq(aconf)); | |
87 | ||
88 | return (BAD_PING); | |
89 | } | |
90 | ||
91 | /* | |
92 | * get_client_class | |
93 | * | |
94 | * inputs - pointer to client struct | |
95 | * output - pointer to name of class | |
96 | * side effects - NONE | |
97 | */ | |
98 | const char * | |
99 | get_client_class(struct Client *target_p) | |
100 | { | |
101 | const char *retc = "unknown"; | |
102 | ||
103 | if(target_p == NULL || IsMe(target_p)) | |
104 | return retc; | |
105 | ||
106 | if(IsServer(target_p)) | |
107 | { | |
108 | struct server_conf *server_p = target_p->localClient->att_sconf; | |
109 | return server_p->class_name; | |
110 | } | |
111 | else | |
112 | { | |
113 | struct ConfItem *aconf; | |
114 | aconf = target_p->localClient->att_conf; | |
115 | ||
116 | if((aconf == NULL) || (aconf->className == NULL)) | |
117 | retc = "default"; | |
118 | else | |
119 | retc = aconf->className; | |
120 | } | |
121 | ||
122 | return (retc); | |
123 | } | |
124 | ||
125 | /* | |
126 | * get_client_ping | |
127 | * | |
128 | * inputs - pointer to client struct | |
129 | * output - ping frequency | |
130 | * side effects - NONE | |
131 | */ | |
132 | int | |
133 | get_client_ping(struct Client *target_p) | |
134 | { | |
135 | int ping = 0; | |
136 | ||
137 | if(IsServer(target_p)) | |
138 | { | |
139 | struct server_conf *server_p = target_p->localClient->att_sconf; | |
140 | ping = PingFreq(server_p->class); | |
141 | } | |
142 | else | |
143 | { | |
144 | struct ConfItem *aconf; | |
145 | ||
146 | aconf = target_p->localClient->att_conf; | |
147 | ||
148 | if(aconf != NULL) | |
149 | ping = get_conf_ping(aconf); | |
150 | else | |
151 | ping = DEFAULT_PINGFREQUENCY; | |
152 | } | |
153 | ||
154 | if(ping <= 0) | |
155 | ping = DEFAULT_PINGFREQUENCY; | |
156 | ||
157 | return ping; | |
158 | } | |
159 | ||
160 | /* | |
161 | * get_con_freq | |
162 | * | |
163 | * inputs - pointer to class struct | |
164 | * output - connection frequency | |
165 | * side effects - NONE | |
166 | */ | |
167 | int | |
168 | get_con_freq(struct Class *clptr) | |
169 | { | |
170 | if(clptr) | |
171 | return (ConFreq(clptr)); | |
172 | return (DEFAULT_CONNECTFREQUENCY); | |
173 | } | |
174 | ||
175 | /* add_class() | |
176 | * | |
177 | * input - class to add | |
178 | * output - | |
179 | * side effects - class is added to class_list if new, else old class | |
180 | * is updated with new values. | |
181 | */ | |
182 | void | |
183 | add_class(struct Class *classptr) | |
184 | { | |
185 | struct Class *tmpptr; | |
186 | ||
187 | tmpptr = find_class(classptr->class_name); | |
188 | ||
189 | if(tmpptr == default_class) | |
190 | { | |
330fc5c1 | 191 | rb_dlinkAddAlloc(classptr, &class_list); |
212380e3 AC |
192 | CurrUsers(classptr) = 0; |
193 | } | |
194 | else | |
195 | { | |
196 | MaxUsers(tmpptr) = MaxUsers(classptr); | |
197 | MaxLocal(tmpptr) = MaxLocal(classptr); | |
198 | MaxGlobal(tmpptr) = MaxGlobal(classptr); | |
199 | MaxIdent(tmpptr) = MaxIdent(classptr); | |
200 | PingFreq(tmpptr) = PingFreq(classptr); | |
201 | MaxSendq(tmpptr) = MaxSendq(classptr); | |
9a595811 | 202 | MaxSendqHard(tmpptr) = MaxSendq(classptr) * 4; |
212380e3 | 203 | ConFreq(tmpptr) = ConFreq(classptr); |
e33e589c JT |
204 | CidrIpv4Bitlen(tmpptr) = CidrIpv4Bitlen(classptr); |
205 | CidrIpv6Bitlen(tmpptr) = CidrIpv6Bitlen(classptr); | |
212380e3 AC |
206 | CidrAmount(tmpptr) = CidrAmount(classptr); |
207 | ||
208 | free_class(classptr); | |
209 | } | |
210 | } | |
211 | ||
212 | ||
213 | /* | |
214 | * find_class | |
215 | * | |
216 | * inputs - string name of class | |
217 | * output - corresponding class pointer | |
218 | * side effects - NONE | |
219 | */ | |
220 | struct Class * | |
221 | find_class(const char *classname) | |
222 | { | |
223 | struct Class *cltmp; | |
330fc5c1 | 224 | rb_dlink_node *ptr; |
212380e3 AC |
225 | |
226 | if(classname == NULL) | |
227 | return default_class; | |
228 | ||
5cefa1d6 | 229 | RB_DLINK_FOREACH(ptr, class_list.head) |
212380e3 AC |
230 | { |
231 | cltmp = ptr->data; | |
232 | ||
233 | if(!strcmp(ClassName(cltmp), classname)) | |
234 | return cltmp; | |
235 | } | |
236 | ||
237 | return default_class; | |
238 | } | |
239 | ||
240 | /* | |
241 | * check_class | |
242 | * | |
243 | * inputs - NONE | |
244 | * output - NONE | |
55abcbb2 | 245 | * side effects - |
212380e3 AC |
246 | */ |
247 | void | |
248 | check_class() | |
249 | { | |
250 | struct Class *cltmp; | |
330fc5c1 | 251 | rb_dlink_node *ptr; |
637c4932 | 252 | rb_dlink_node *next_ptr; |
212380e3 | 253 | |
637c4932 | 254 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, class_list.head) |
212380e3 AC |
255 | { |
256 | cltmp = ptr->data; | |
257 | ||
258 | if(MaxUsers(cltmp) < 0) | |
259 | { | |
330fc5c1 | 260 | rb_dlinkDestroy(ptr, &class_list); |
212380e3 AC |
261 | if(CurrUsers(cltmp) <= 0) |
262 | free_class(cltmp); | |
263 | } | |
264 | } | |
265 | } | |
266 | ||
267 | /* | |
268 | * initclass | |
269 | * | |
270 | * inputs - NONE | |
271 | * output - NONE | |
55abcbb2 | 272 | * side effects - |
212380e3 AC |
273 | */ |
274 | void | |
275 | initclass() | |
276 | { | |
277 | default_class = make_class(); | |
47a03750 | 278 | ClassName(default_class) = rb_strdup("default"); |
212380e3 AC |
279 | } |
280 | ||
281 | /* | |
282 | * report_classes | |
283 | * | |
284 | * inputs - pointer to client to report to | |
285 | * output - NONE | |
286 | * side effects - class report is done to this client | |
287 | */ | |
288 | void | |
289 | report_classes(struct Client *source_p) | |
290 | { | |
291 | struct Class *cltmp; | |
330fc5c1 | 292 | rb_dlink_node *ptr; |
212380e3 | 293 | |
5cefa1d6 | 294 | RB_DLINK_FOREACH(ptr, class_list.head) |
212380e3 AC |
295 | { |
296 | cltmp = ptr->data; | |
297 | ||
55abcbb2 | 298 | sendto_one_numeric(source_p, RPL_STATSYLINE, |
212380e3 | 299 | form_str(RPL_STATSYLINE), |
55abcbb2 KB |
300 | ClassName(cltmp), PingFreq(cltmp), |
301 | ConFreq(cltmp), MaxUsers(cltmp), | |
302 | MaxSendq(cltmp), | |
212380e3 AC |
303 | MaxLocal(cltmp), MaxIdent(cltmp), |
304 | MaxGlobal(cltmp), MaxIdent(cltmp), | |
305 | CurrUsers(cltmp)); | |
306 | } | |
307 | ||
308 | /* also output the default class */ | |
309 | sendto_one_numeric(source_p, RPL_STATSYLINE, form_str(RPL_STATSYLINE), | |
55abcbb2 KB |
310 | ClassName(default_class), PingFreq(default_class), |
311 | ConFreq(default_class), MaxUsers(default_class), | |
312 | MaxSendq(default_class), | |
212380e3 AC |
313 | MaxLocal(default_class), MaxIdent(default_class), |
314 | MaxGlobal(default_class), MaxIdent(default_class), | |
315 | CurrUsers(default_class)); | |
316 | } | |
317 | ||
318 | /* | |
319 | * get_sendq | |
320 | * | |
321 | * inputs - pointer to client | |
322 | * output - sendq for this client as found from its class | |
323 | * side effects - NONE | |
324 | */ | |
325 | long | |
326 | get_sendq(struct Client *client_p) | |
327 | { | |
328 | if(client_p == NULL || IsMe(client_p)) | |
329 | return DEFAULT_SENDQ; | |
330 | ||
331 | if(IsServer(client_p)) | |
332 | { | |
333 | struct server_conf *server_p; | |
334 | server_p = client_p->localClient->att_sconf; | |
335 | return MaxSendq(server_p->class); | |
336 | } | |
337 | else | |
338 | { | |
339 | struct ConfItem *aconf = client_p->localClient->att_conf; | |
340 | ||
341 | if(aconf != NULL && aconf->status & CONF_CLIENT) | |
342 | return ConfMaxSendq(aconf); | |
343 | } | |
344 | ||
345 | return DEFAULT_SENDQ; | |
346 | } | |
9a595811 AC |
347 | |
348 | /* | |
349 | * get_sendq_hard | |
350 | * | |
351 | * inputs - pointer to client | |
352 | * output - hard sendq limit for this client as found from its class | |
353 | * side effects - NONE | |
354 | */ | |
355 | long | |
356 | get_sendq_hard(struct Client *client_p) | |
357 | { | |
358 | if(client_p == NULL || IsMe(client_p)) | |
359 | return DEFAULT_SENDQ; | |
360 | ||
361 | if(IsServer(client_p)) | |
362 | { | |
363 | struct server_conf *server_p; | |
364 | server_p = client_p->localClient->att_sconf; | |
365 | return MaxSendqHard(server_p->class); | |
366 | } | |
367 | else | |
368 | { | |
369 | struct ConfItem *aconf = client_p->localClient->att_conf; | |
370 | ||
371 | if(aconf != NULL && aconf->status & CONF_CLIENT) | |
372 | return ConfMaxSendqHard(aconf); | |
373 | } | |
374 | ||
375 | return DEFAULT_SENDQ; | |
376 | } |