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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" | |
38 | #include "irc_string.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 | ||
47 | struct Class * | |
48 | make_class(void) | |
49 | { | |
50 | struct Class *tmp; | |
51 | ||
eddc2ab6 | 52 | tmp = (struct Class *) rb_malloc(sizeof(struct Class)); |
212380e3 AC |
53 | |
54 | ConFreq(tmp) = DEFAULT_CONNECTFREQUENCY; | |
55 | PingFreq(tmp) = DEFAULT_PINGFREQUENCY; | |
56 | MaxUsers(tmp) = 1; | |
57 | MaxSendq(tmp) = DEFAULT_SENDQ; | |
58 | ||
944e17ac | 59 | tmp->ip_limits = rb_new_patricia(PATRICIA_BITS); |
212380e3 AC |
60 | return tmp; |
61 | } | |
62 | ||
63 | void | |
64 | free_class(struct Class *tmp) | |
65 | { | |
66 | if(tmp->ip_limits) | |
944e17ac | 67 | rb_destroy_patricia(tmp->ip_limits, NULL); |
212380e3 | 68 | |
637c4932 VY |
69 | rb_free(tmp->class_name); |
70 | rb_free(tmp); | |
212380e3 AC |
71 | |
72 | } | |
73 | ||
74 | /* | |
75 | * get_conf_ping | |
76 | * | |
77 | * inputs - pointer to struct ConfItem | |
78 | * output - ping frequency | |
79 | * side effects - NONE | |
80 | */ | |
81 | static int | |
82 | get_conf_ping(struct ConfItem *aconf) | |
83 | { | |
84 | if((aconf) && ClassPtr(aconf)) | |
85 | return (ConfPingFreq(aconf)); | |
86 | ||
87 | return (BAD_PING); | |
88 | } | |
89 | ||
90 | /* | |
91 | * get_client_class | |
92 | * | |
93 | * inputs - pointer to client struct | |
94 | * output - pointer to name of class | |
95 | * side effects - NONE | |
96 | */ | |
97 | const char * | |
98 | get_client_class(struct Client *target_p) | |
99 | { | |
100 | const char *retc = "unknown"; | |
101 | ||
102 | if(target_p == NULL || IsMe(target_p)) | |
103 | return retc; | |
104 | ||
105 | if(IsServer(target_p)) | |
106 | { | |
107 | struct server_conf *server_p = target_p->localClient->att_sconf; | |
108 | return server_p->class_name; | |
109 | } | |
110 | else | |
111 | { | |
112 | struct ConfItem *aconf; | |
113 | aconf = target_p->localClient->att_conf; | |
114 | ||
115 | if((aconf == NULL) || (aconf->className == NULL)) | |
116 | retc = "default"; | |
117 | else | |
118 | retc = aconf->className; | |
119 | } | |
120 | ||
121 | return (retc); | |
122 | } | |
123 | ||
124 | /* | |
125 | * get_client_ping | |
126 | * | |
127 | * inputs - pointer to client struct | |
128 | * output - ping frequency | |
129 | * side effects - NONE | |
130 | */ | |
131 | int | |
132 | get_client_ping(struct Client *target_p) | |
133 | { | |
134 | int ping = 0; | |
135 | ||
136 | if(IsServer(target_p)) | |
137 | { | |
138 | struct server_conf *server_p = target_p->localClient->att_sconf; | |
139 | ping = PingFreq(server_p->class); | |
140 | } | |
141 | else | |
142 | { | |
143 | struct ConfItem *aconf; | |
144 | ||
145 | aconf = target_p->localClient->att_conf; | |
146 | ||
147 | if(aconf != NULL) | |
148 | ping = get_conf_ping(aconf); | |
149 | else | |
150 | ping = DEFAULT_PINGFREQUENCY; | |
151 | } | |
152 | ||
153 | if(ping <= 0) | |
154 | ping = DEFAULT_PINGFREQUENCY; | |
155 | ||
156 | return ping; | |
157 | } | |
158 | ||
159 | /* | |
160 | * get_con_freq | |
161 | * | |
162 | * inputs - pointer to class struct | |
163 | * output - connection frequency | |
164 | * side effects - NONE | |
165 | */ | |
166 | int | |
167 | get_con_freq(struct Class *clptr) | |
168 | { | |
169 | if(clptr) | |
170 | return (ConFreq(clptr)); | |
171 | return (DEFAULT_CONNECTFREQUENCY); | |
172 | } | |
173 | ||
174 | /* add_class() | |
175 | * | |
176 | * input - class to add | |
177 | * output - | |
178 | * side effects - class is added to class_list if new, else old class | |
179 | * is updated with new values. | |
180 | */ | |
181 | void | |
182 | add_class(struct Class *classptr) | |
183 | { | |
184 | struct Class *tmpptr; | |
185 | ||
186 | tmpptr = find_class(classptr->class_name); | |
187 | ||
188 | if(tmpptr == default_class) | |
189 | { | |
330fc5c1 | 190 | rb_dlinkAddAlloc(classptr, &class_list); |
212380e3 AC |
191 | CurrUsers(classptr) = 0; |
192 | } | |
193 | else | |
194 | { | |
195 | MaxUsers(tmpptr) = MaxUsers(classptr); | |
196 | MaxLocal(tmpptr) = MaxLocal(classptr); | |
197 | MaxGlobal(tmpptr) = MaxGlobal(classptr); | |
198 | MaxIdent(tmpptr) = MaxIdent(classptr); | |
199 | PingFreq(tmpptr) = PingFreq(classptr); | |
200 | MaxSendq(tmpptr) = MaxSendq(classptr); | |
201 | ConFreq(tmpptr) = ConFreq(classptr); | |
202 | CidrBitlen(tmpptr) = CidrBitlen(classptr); | |
203 | CidrAmount(tmpptr) = CidrAmount(classptr); | |
204 | ||
205 | free_class(classptr); | |
206 | } | |
207 | } | |
208 | ||
209 | ||
210 | /* | |
211 | * find_class | |
212 | * | |
213 | * inputs - string name of class | |
214 | * output - corresponding class pointer | |
215 | * side effects - NONE | |
216 | */ | |
217 | struct Class * | |
218 | find_class(const char *classname) | |
219 | { | |
220 | struct Class *cltmp; | |
330fc5c1 | 221 | rb_dlink_node *ptr; |
212380e3 AC |
222 | |
223 | if(classname == NULL) | |
224 | return default_class; | |
225 | ||
5cefa1d6 | 226 | RB_DLINK_FOREACH(ptr, class_list.head) |
212380e3 AC |
227 | { |
228 | cltmp = ptr->data; | |
229 | ||
230 | if(!strcmp(ClassName(cltmp), classname)) | |
231 | return cltmp; | |
232 | } | |
233 | ||
234 | return default_class; | |
235 | } | |
236 | ||
237 | /* | |
238 | * check_class | |
239 | * | |
240 | * inputs - NONE | |
241 | * output - NONE | |
242 | * side effects - | |
243 | */ | |
244 | void | |
245 | check_class() | |
246 | { | |
247 | struct Class *cltmp; | |
330fc5c1 | 248 | rb_dlink_node *ptr; |
637c4932 | 249 | rb_dlink_node *next_ptr; |
212380e3 | 250 | |
637c4932 | 251 | RB_DLINK_FOREACH_SAFE(ptr, next_ptr, class_list.head) |
212380e3 AC |
252 | { |
253 | cltmp = ptr->data; | |
254 | ||
255 | if(MaxUsers(cltmp) < 0) | |
256 | { | |
330fc5c1 | 257 | rb_dlinkDestroy(ptr, &class_list); |
212380e3 AC |
258 | if(CurrUsers(cltmp) <= 0) |
259 | free_class(cltmp); | |
260 | } | |
261 | } | |
262 | } | |
263 | ||
264 | /* | |
265 | * initclass | |
266 | * | |
267 | * inputs - NONE | |
268 | * output - NONE | |
269 | * side effects - | |
270 | */ | |
271 | void | |
272 | initclass() | |
273 | { | |
274 | default_class = make_class(); | |
47a03750 | 275 | ClassName(default_class) = rb_strdup("default"); |
212380e3 AC |
276 | } |
277 | ||
278 | /* | |
279 | * report_classes | |
280 | * | |
281 | * inputs - pointer to client to report to | |
282 | * output - NONE | |
283 | * side effects - class report is done to this client | |
284 | */ | |
285 | void | |
286 | report_classes(struct Client *source_p) | |
287 | { | |
288 | struct Class *cltmp; | |
330fc5c1 | 289 | rb_dlink_node *ptr; |
212380e3 | 290 | |
5cefa1d6 | 291 | RB_DLINK_FOREACH(ptr, class_list.head) |
212380e3 AC |
292 | { |
293 | cltmp = ptr->data; | |
294 | ||
295 | sendto_one_numeric(source_p, RPL_STATSYLINE, | |
296 | form_str(RPL_STATSYLINE), | |
297 | ClassName(cltmp), PingFreq(cltmp), | |
298 | ConFreq(cltmp), MaxUsers(cltmp), | |
299 | MaxSendq(cltmp), | |
300 | MaxLocal(cltmp), MaxIdent(cltmp), | |
301 | MaxGlobal(cltmp), MaxIdent(cltmp), | |
302 | CurrUsers(cltmp)); | |
303 | } | |
304 | ||
305 | /* also output the default class */ | |
306 | sendto_one_numeric(source_p, RPL_STATSYLINE, form_str(RPL_STATSYLINE), | |
307 | ClassName(default_class), PingFreq(default_class), | |
308 | ConFreq(default_class), MaxUsers(default_class), | |
309 | MaxSendq(default_class), | |
310 | MaxLocal(default_class), MaxIdent(default_class), | |
311 | MaxGlobal(default_class), MaxIdent(default_class), | |
312 | CurrUsers(default_class)); | |
313 | } | |
314 | ||
315 | /* | |
316 | * get_sendq | |
317 | * | |
318 | * inputs - pointer to client | |
319 | * output - sendq for this client as found from its class | |
320 | * side effects - NONE | |
321 | */ | |
322 | long | |
323 | get_sendq(struct Client *client_p) | |
324 | { | |
325 | if(client_p == NULL || IsMe(client_p)) | |
326 | return DEFAULT_SENDQ; | |
327 | ||
328 | if(IsServer(client_p)) | |
329 | { | |
330 | struct server_conf *server_p; | |
331 | server_p = client_p->localClient->att_sconf; | |
332 | return MaxSendq(server_p->class); | |
333 | } | |
334 | else | |
335 | { | |
336 | struct ConfItem *aconf = client_p->localClient->att_conf; | |
337 | ||
338 | if(aconf != NULL && aconf->status & CONF_CLIENT) | |
339 | return ConfMaxSendq(aconf); | |
340 | } | |
341 | ||
342 | return DEFAULT_SENDQ; | |
343 | } |