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c6c8fea297
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See http://www.open-mesh.org/ for more information and user space tools. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*
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* Copyright (C) 2006-2010 B.A.T.M.A.N. contributors:
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*
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* Simon Wunderlich, Marek Lindner
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* 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., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*
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*/
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#ifndef _NET_BATMAN_ADV_BITARRAY_H_
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#define _NET_BATMAN_ADV_BITARRAY_H_
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#define WORD_BIT_SIZE (sizeof(unsigned long) * 8)
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/* returns true if the corresponding bit in the given seq_bits indicates true
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* and curr_seqno is within range of last_seqno */
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uint8_t get_bit_status(unsigned long *seq_bits, uint32_t last_seqno,
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uint32_t curr_seqno);
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/* turn corresponding bit on, so we can remember that we got the packet */
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void bit_mark(unsigned long *seq_bits, int32_t n);
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/* receive and process one packet, returns 1 if received seq_num is considered
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* new, 0 if old */
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char bit_get_packet(void *priv, unsigned long *seq_bits,
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int32_t seq_num_diff, int8_t set_mark);
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/* count the hamming weight, how many good packets did we receive? */
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int bit_packet_count(unsigned long *seq_bits);
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#endif /* _NET_BATMAN_ADV_BITARRAY_H_ */
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