/* * Copyright (c) 2011 Jiri Svoboda * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup tcp * @{ */ /** @file Sequence number computations */ #ifndef SEQ_NO_H #define SEQ_NO_H #include <stdint.h> #include "tcp_type.h" extern bool seq_no_ack_acceptable(tcp_conn_t *, uint32_t); extern bool seq_no_ack_duplicate(tcp_conn_t *, uint32_t); extern bool seq_no_in_rcv_wnd(tcp_conn_t *, uint32_t); extern bool seq_no_new_wnd_update(tcp_conn_t *, tcp_segment_t *); extern bool seq_no_segment_acked(tcp_conn_t *, tcp_segment_t *, uint32_t); extern bool seq_no_syn_acked(tcp_conn_t *); extern bool seq_no_segment_ready(tcp_conn_t *, tcp_segment_t *); extern bool seq_no_segment_acceptable(tcp_conn_t *, tcp_segment_t *); extern void seq_no_seg_trim_calc(tcp_conn_t *, tcp_segment_t *, uint32_t *, uint32_t *); extern int seq_no_seg_cmp(tcp_conn_t *, tcp_segment_t *, tcp_segment_t *); extern uint32_t seq_no_control_len(tcp_control_t); #endif /** @} */