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michael |
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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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michael |
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* Copyright (c) 1997-2015 ircd-hybrid development team |
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michael |
4325 |
* |
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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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michael |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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michael |
4325 |
* USA |
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*/ |
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/*! \file ipcache.h |
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* \brief Routines to count connections from particular IP addresses. |
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michael |
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* \version $Id$ |
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michael |
4325 |
*/ |
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#ifndef INCLUDED_ipcache_h |
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#define INCLUDED_ipcache_h |
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#include "ircd_defs.h" |
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michael |
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/* |
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* Usually, with hash tables, you use a prime number... |
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michael |
4325 |
* but in this case I am dealing with ip addresses, |
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* not ascii strings. |
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*/ |
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michael |
6470 |
enum { IP_HASH_SIZE = 0x1000 }; |
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michael |
4325 |
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struct ip_entry |
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{ |
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michael |
4372 |
dlink_node node; /**< Doubly linked list node */ |
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struct irc_ssaddr ip; /**< Holds an IPv6 or IPv4 address */ |
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michael |
4325 |
unsigned int count; /**< Number of registered users using this IP */ |
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unsigned int connection_count; /**< Number of connections from this IP in the last throttle_time duration */ |
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time_t last_attempt; /**< The last time someone connected from this IP */ |
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}; |
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michael |
6651 |
extern struct ip_entry *ipcache_find_or_add_address(const struct irc_ssaddr *); |
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extern void ipcache_remove_address(const struct irc_ssaddr *); |
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michael |
4329 |
extern void ipcache_get_stats(unsigned int *const, uint64_t *const); |
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michael |
4325 |
extern void ipcache_init(void); |
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#endif |
