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2a91aa39 AB |
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 | ||
91f0ebf7 ACM |
23 | #include <linux/dccp.h> |
24 | #include <linux/timer.h> | |
25 | #include <linux/types.h> | |
26 | #include "../ccid.h" | |
27 | ||
28 | struct sock; | |
29 | ||
2a91aa39 AB |
30 | struct 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 | ||
6472c051 | 38 | #define CCID2_SEQBUF_LEN 1024 |
07978aab AB |
39 | #define CCID2_SEQBUF_MAX 128 |
40 | ||
2a91aa39 AB |
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 | |
2a91aa39 | 45 | * @ccid2hctx_lastrtt -time RTT was last measured |
2a91aa39 AB |
46 | * @ccid2hctx_rpseq - last consecutive seqno |
47 | * @ccid2hctx_rpdupack - dupacks since rpseq | |
48 | */ | |
49 | struct ccid2_hc_tx_sock { | |
ee196c21 | 50 | u32 ccid2hctx_cwnd; |
2a91aa39 AB |
51 | int ccid2hctx_ssacks; |
52 | int ccid2hctx_acks; | |
d458c25c | 53 | unsigned int ccid2hctx_ssthresh; |
2a91aa39 AB |
54 | int ccid2hctx_pipe; |
55 | int ccid2hctx_numdupack; | |
07978aab AB |
56 | struct ccid2_seq *ccid2hctx_seqbuf[CCID2_SEQBUF_MAX]; |
57 | int ccid2hctx_seqbufc; | |
2a91aa39 AB |
58 | struct ccid2_seq *ccid2hctx_seqh; |
59 | struct ccid2_seq *ccid2hctx_seqt; | |
60 | long ccid2hctx_rto; | |
61 | long ccid2hctx_srtt; | |
62 | long ccid2hctx_rttvar; | |
2a91aa39 AB |
63 | unsigned long ccid2hctx_lastrtt; |
64 | struct timer_list ccid2hctx_rtotimer; | |
2a91aa39 AB |
65 | u64 ccid2hctx_rpseq; |
66 | int ccid2hctx_rpdupack; | |
67 | int ccid2hctx_sendwait; | |
374bcf32 | 68 | unsigned long ccid2hctx_last_cong; |
32aac18d | 69 | u64 ccid2hctx_high_ack; |
2a91aa39 AB |
70 | }; |
71 | ||
72 | struct ccid2_hc_rx_sock { | |
73 | int ccid2hcrx_data; | |
74 | }; | |
75 | ||
91f0ebf7 ACM |
76 | static inline struct ccid2_hc_tx_sock *ccid2_hc_tx_sk(const struct sock *sk) |
77 | { | |
78 | return ccid_priv(dccp_sk(sk)->dccps_hc_tx_ccid); | |
79 | } | |
80 | ||
81 | static inline struct ccid2_hc_rx_sock *ccid2_hc_rx_sk(const struct sock *sk) | |
82 | { | |
83 | return ccid_priv(dccp_sk(sk)->dccps_hc_rx_ccid); | |
84 | } | |
2a91aa39 | 85 | #endif /* _DCCP_CCID2_H_ */ |