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61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/*
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This file is part of libmicrohttpd
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Copyright (C) 2007-2018 Daniel Pittman and Christian Grothoff
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file lib/daemon_ip_limit.h
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* @brief counting of connections per IP
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* @author Christian Grothoff
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*/
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#ifndef DAEMON_IP_LIMIT_H
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#define DAEMON_IP_LIMIT_H
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/**
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* Check if IP address is over its limit in terms of the number
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* of allowed concurrent connections. If the IP is still allowed,
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* increments the connection counter.
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*
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* @param daemon handle to daemon where connection counts are tracked
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* @param addr address to add (or increment counter)
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* @param addrlen number of bytes in @a addr
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* @return Return #MHD_YES if IP below limit, #MHD_NO if IP has surpassed limit.
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* Also returns #MHD_NO if fails to allocate memory.
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*/
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int
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MHD_ip_limit_add (struct MHD_Daemon *daemon,
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const struct sockaddr *addr,
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socklen_t addrlen)
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MHD_NONNULL (1,2);
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/**
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* Decrement connection count for IP address, removing from table
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* count reaches 0.
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*
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* @param daemon handle to daemon where connection counts are tracked
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* @param addr address to remove (or decrement counter)
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* @param addrlen number of bytes in @a addr
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*/
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void
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MHD_ip_limit_del (struct MHD_Daemon *daemon,
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const struct sockaddr *addr,
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socklen_t addrlen)
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MHD_NONNULL (1,2);
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#endif
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