tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * net/dccp/ccids/ccid2.h
3 *
4 * Copyright (c) 2005 Andrea Bittau <a.bittau@cs.ucl.ac.uk>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20#ifndef _DCCP_CCID2_H_
21#define _DCCP_CCID2_H_
22
23#include <linux/dccp.h>
24#include <linux/timer.h>
25#include <linux/types.h>
26#include "../ccid.h"
27
28struct sock;
29
30struct ccid2_seq {
31 u64 ccid2s_seq;
32 unsigned long ccid2s_sent;
33 int ccid2s_acked;
34 struct ccid2_seq *ccid2s_prev;
35 struct ccid2_seq *ccid2s_next;
36};
37
38#define CCID2_SEQBUF_LEN 256
39#define CCID2_SEQBUF_MAX 128
40
41/** struct ccid2_hc_tx_sock - CCID2 TX half connection
42 *
43 * @ccid2hctx_ssacks - ACKs recv in slow start
44 * @ccid2hctx_acks - ACKS recv in AI phase
45 * @ccid2hctx_sent - packets sent in this window
46 * @ccid2hctx_lastrtt -time RTT was last measured
47 * @ccid2hctx_arsent - packets sent [ack ratio]
48 * @ccid2hctx_ackloss - ack was lost in this win
49 * @ccid2hctx_rpseq - last consecutive seqno
50 * @ccid2hctx_rpdupack - dupacks since rpseq
51*/
52struct ccid2_hc_tx_sock {
53 int ccid2hctx_cwnd;
54 int ccid2hctx_ssacks;
55 int ccid2hctx_acks;
56 unsigned int ccid2hctx_ssthresh;
57 int ccid2hctx_pipe;
58 int ccid2hctx_numdupack;
59 struct ccid2_seq *ccid2hctx_seqbuf[CCID2_SEQBUF_MAX];
60 int ccid2hctx_seqbufc;
61 struct ccid2_seq *ccid2hctx_seqh;
62 struct ccid2_seq *ccid2hctx_seqt;
63 long ccid2hctx_rto;
64 long ccid2hctx_srtt;
65 long ccid2hctx_rttvar;
66 int ccid2hctx_sent;
67 unsigned long ccid2hctx_lastrtt;
68 struct timer_list ccid2hctx_rtotimer;
69 unsigned long ccid2hctx_arsent;
70 int ccid2hctx_ackloss;
71 u64 ccid2hctx_rpseq;
72 int ccid2hctx_rpdupack;
73 int ccid2hctx_sendwait;
74 unsigned long ccid2hctx_last_cong;
75};
76
77struct ccid2_hc_rx_sock {
78 int ccid2hcrx_data;
79};
80
81static inline struct ccid2_hc_tx_sock *ccid2_hc_tx_sk(const struct sock *sk)
82{
83 return ccid_priv(dccp_sk(sk)->dccps_hc_tx_ccid);
84}
85
86static inline struct ccid2_hc_rx_sock *ccid2_hc_rx_sk(const struct sock *sk)
87{
88 return ccid_priv(dccp_sk(sk)->dccps_hc_rx_ccid);
89}
90#endif /* _DCCP_CCID2_H_ */