1 files changed, 44 insertions, 0 deletions
diff --git a/net/batman-adv/bitarray.h b/net/batman-adv/bitarray.h
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+++ b/net/batman-adv/bitarray.h
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+/*
+ * Copyright (C) 2006-2012 B.A.T.M.A.N. contributors:
+ *
+ * Simon Wunderlich, Marek Lindner
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#ifndef _NET_BATMAN_ADV_BITARRAY_H_
+#define _NET_BATMAN_ADV_BITARRAY_H_
+
+#define WORD_BIT_SIZE (sizeof(unsigned long) * 8)
+
+/* returns true if the corresponding bit in the given seq_bits indicates true
+ * and curr_seqno is within range of last_seqno */
+int get_bit_status(const unsigned long *seq_bits, uint32_t last_seqno,
+		   uint32_t curr_seqno);
+
+/* turn corresponding bit on, so we can remember that we got the packet */
+void bit_mark(unsigned long *seq_bits, int32_t n);
+
+
+/* receive and process one packet, returns 1 if received seq_num is considered
+ * new, 0 if old  */
+int bit_get_packet(void *priv, unsigned long *seq_bits,
+		   int32_t seq_num_diff, int set_mark);
+
+/* count the hamming weight, how many good packets did we receive? */
+int bit_packet_count(const unsigned long *seq_bits);
+
+#endif /* _NET_BATMAN_ADV_BITARRAY_H_ */