344 lines
6.7 KiB
C
344 lines
6.7 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* class.c: Controls connection classes.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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* $Id: class.c 254 2005-09-21 23:35:12Z nenolod $
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*/
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#include "stdinc.h"
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#include "config.h"
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#include "class.h"
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#include "client.h"
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#include "common.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "send.h"
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#include "match.h"
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#define BAD_CONF_CLASS -1
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#define BAD_PING -2
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#define BAD_CLIENT_CLASS -3
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rb_dlink_list class_list;
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struct Class *default_class;
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struct Class *
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make_class(void)
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{
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struct Class *tmp;
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tmp = rb_malloc(sizeof(struct Class));
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ConFreq(tmp) = DEFAULT_CONNECTFREQUENCY;
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PingFreq(tmp) = DEFAULT_PINGFREQUENCY;
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MaxUsers(tmp) = 1;
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MaxSendq(tmp) = DEFAULT_SENDQ;
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tmp->ip_limits = rb_new_patricia(PATRICIA_BITS);
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return tmp;
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}
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void
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free_class(struct Class *tmp)
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{
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if(tmp->ip_limits)
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rb_destroy_patricia(tmp->ip_limits, NULL);
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rb_free(tmp->class_name);
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rb_free(tmp);
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}
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/*
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* get_conf_ping
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*
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* inputs - pointer to struct ConfItem
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* output - ping frequency
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* side effects - NONE
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*/
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static int
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get_conf_ping(struct ConfItem *aconf)
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{
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if((aconf) && ClassPtr(aconf))
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return (ConfPingFreq(aconf));
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return (BAD_PING);
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}
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/*
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* get_client_class
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*
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* inputs - pointer to client struct
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* output - pointer to name of class
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* side effects - NONE
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*/
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const char *
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get_client_class(struct Client *target_p)
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{
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const char *retc = "unknown";
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if(target_p == NULL || IsMe(target_p))
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return retc;
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if(IsServer(target_p))
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{
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struct server_conf *server_p = target_p->localClient->att_sconf;
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return server_p->class_name;
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}
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else
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{
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struct ConfItem *aconf;
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aconf = target_p->localClient->att_conf;
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if((aconf == NULL) || (aconf->className == NULL))
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retc = "default";
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else
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retc = aconf->className;
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}
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return (retc);
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}
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/*
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* get_client_ping
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*
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* inputs - pointer to client struct
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* output - ping frequency
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* side effects - NONE
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*/
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int
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get_client_ping(struct Client *target_p)
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{
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int ping = 0;
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if(IsServer(target_p))
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{
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struct server_conf *server_p = target_p->localClient->att_sconf;
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ping = PingFreq(server_p->class);
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}
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else
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{
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struct ConfItem *aconf;
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aconf = target_p->localClient->att_conf;
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if(aconf != NULL)
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ping = get_conf_ping(aconf);
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else
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ping = DEFAULT_PINGFREQUENCY;
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}
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if(ping <= 0)
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ping = DEFAULT_PINGFREQUENCY;
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return ping;
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}
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/*
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* get_con_freq
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*
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* inputs - pointer to class struct
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* output - connection frequency
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* side effects - NONE
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*/
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int
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get_con_freq(struct Class *clptr)
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{
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if(clptr)
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return (ConFreq(clptr));
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return (DEFAULT_CONNECTFREQUENCY);
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}
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/* add_class()
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*
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* input - class to add
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* output -
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* side effects - class is added to class_list if new, else old class
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* is updated with new values.
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*/
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void
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add_class(struct Class *classptr)
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{
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struct Class *tmpptr;
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tmpptr = find_class(classptr->class_name);
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if(tmpptr == default_class)
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{
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rb_dlinkAddAlloc(classptr, &class_list);
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CurrUsers(classptr) = 0;
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}
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else
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{
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MaxUsers(tmpptr) = MaxUsers(classptr);
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MaxLocal(tmpptr) = MaxLocal(classptr);
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MaxGlobal(tmpptr) = MaxGlobal(classptr);
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MaxIdent(tmpptr) = MaxIdent(classptr);
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PingFreq(tmpptr) = PingFreq(classptr);
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MaxSendq(tmpptr) = MaxSendq(classptr);
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ConFreq(tmpptr) = ConFreq(classptr);
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CidrIpv4Bitlen(tmpptr) = CidrIpv4Bitlen(classptr);
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CidrIpv6Bitlen(tmpptr) = CidrIpv6Bitlen(classptr);
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CidrAmount(tmpptr) = CidrAmount(classptr);
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free_class(classptr);
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}
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}
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/*
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* find_class
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*
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* inputs - string name of class
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* output - corresponding class pointer
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* side effects - NONE
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*/
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struct Class *
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find_class(const char *classname)
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{
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struct Class *cltmp;
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rb_dlink_node *ptr;
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if(classname == NULL)
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return default_class;
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RB_DLINK_FOREACH(ptr, class_list.head)
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{
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cltmp = ptr->data;
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if(!strcmp(ClassName(cltmp), classname))
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return cltmp;
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}
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return default_class;
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}
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/*
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* check_class
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*
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* inputs - NONE
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* output - NONE
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* side effects -
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*/
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void
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check_class()
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{
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struct Class *cltmp;
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rb_dlink_node *ptr;
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rb_dlink_node *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, class_list.head)
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{
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cltmp = ptr->data;
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if(MaxUsers(cltmp) < 0)
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{
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rb_dlinkDestroy(ptr, &class_list);
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if(CurrUsers(cltmp) <= 0)
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free_class(cltmp);
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}
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}
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}
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/*
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* initclass
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*
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* inputs - NONE
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* output - NONE
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* side effects -
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*/
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void
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initclass()
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{
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default_class = make_class();
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ClassName(default_class) = rb_strdup("default");
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}
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/*
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* report_classes
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*
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* inputs - pointer to client to report to
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* output - NONE
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* side effects - class report is done to this client
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*/
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void
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report_classes(struct Client *source_p)
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{
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struct Class *cltmp;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, class_list.head)
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{
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cltmp = ptr->data;
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sendto_one_numeric(source_p, RPL_STATSYLINE,
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form_str(RPL_STATSYLINE),
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ClassName(cltmp), PingFreq(cltmp),
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ConFreq(cltmp), MaxUsers(cltmp),
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MaxSendq(cltmp),
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MaxLocal(cltmp), MaxIdent(cltmp),
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MaxGlobal(cltmp), MaxIdent(cltmp),
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CurrUsers(cltmp));
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}
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/* also output the default class */
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sendto_one_numeric(source_p, RPL_STATSYLINE, form_str(RPL_STATSYLINE),
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ClassName(default_class), PingFreq(default_class),
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ConFreq(default_class), MaxUsers(default_class),
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MaxSendq(default_class),
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MaxLocal(default_class), MaxIdent(default_class),
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MaxGlobal(default_class), MaxIdent(default_class),
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CurrUsers(default_class));
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}
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/*
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* get_sendq
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*
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* inputs - pointer to client
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* output - sendq for this client as found from its class
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* side effects - NONE
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*/
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long
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get_sendq(struct Client *client_p)
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{
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if(client_p == NULL || IsMe(client_p))
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return DEFAULT_SENDQ;
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if(IsServer(client_p))
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{
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struct server_conf *server_p;
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server_p = client_p->localClient->att_sconf;
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return MaxSendq(server_p->class);
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}
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else
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{
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struct ConfItem *aconf = client_p->localClient->att_conf;
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if(aconf != NULL && aconf->status & CONF_CLIENT)
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return ConfMaxSendq(aconf);
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}
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return DEFAULT_SENDQ;
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}
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