1 files changed, 137 insertions, 0 deletions
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
new file mode 100644
index 000000000000..ee8cbace6630
--- /dev/null
+++ b/net/dccp/ccids/ccid3.h
@@ -0,0 +1,137 @@
+/*
+ *  net/dccp/ccids/ccid3.h
+ *
+ *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
+ *
+ *  An implementation of the DCCP protocol
+ *
+ *  This code has been developed by the University of Waikato WAND
+ *  research group. For further information please see http://www.wand.net.nz/
+ *  or e-mail Ian McDonald - iam4@cs.waikato.ac.nz
+ *
+ *  This code also uses code from Lulea University, rereleased as GPL by its
+ *  authors:
+ *  Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
+ *
+ *  Changes to meet Linux coding standards, to make it meet latest ccid3 draft
+ *  and to make it work as a loadable module in the DCCP stack written by
+ *  Arnaldo Carvalho de Melo <acme@conectiva.com.br>.
+ *
+ *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#ifndef _DCCP_CCID3_H_
+#define _DCCP_CCID3_H_
+#include <linux/config.h>
+#include <linux/list.h>
+#include <linux/time.h>
+#include <linux/types.h>
+#define TFRC_MIN_PACKET_SIZE       16
+#define TFRC_STD_PACKET_SIZE      256
+#define TFRC_MAX_PACKET_SIZE    65535
+/* Two seconds as per CCID3 spec */
+#define TFRC_INITIAL_TIMEOUT       (2 * USEC_PER_SEC)
+/* In usecs - half the scheduling granularity as per RFC3448 4.6 */
+#define TFRC_OPSYS_HALF_TIME_GRAN  (USEC_PER_SEC / (2 * HZ))
+/* In seconds */
+#define TFRC_MAX_BACK_OFF_TIME     64
+#define TFRC_SMALLEST_P            40
+enum ccid3_options {
+        TFRC_OPT_LOSS_EVENT_RATE = 192,
+        TFRC_OPT_LOSS_INTERVALS  = 193,
+        TFRC_OPT_RECEIVE_RATE    = 194,
+};
+struct ccid3_options_received {
+        u64 ccid3or_seqno:48,
+            ccid3or_loss_intervals_idx:16;
+        u16 ccid3or_loss_intervals_len;
+        u32 ccid3or_loss_event_rate;
+        u32 ccid3or_receive_rate;
+};
+/** struct ccid3_hc_tx_sock - CCID3 sender half connection sock
+ *
+  * @ccid3hctx_state - Sender state
+  * @ccid3hctx_x - Current sending rate
+  * @ccid3hctx_x_recv - Receive rate
+  * @ccid3hctx_x_calc - Calculated send (?) rate
+  * @ccid3hctx_s - Packet size
+  * @ccid3hctx_rtt - Estimate of current round trip time in usecs
+  * @@ccid3hctx_p - Current loss event rate (0-1) scaled by 1000000
+  * @ccid3hctx_last_win_count - Last window counter sent
+  * @ccid3hctx_t_last_win_count - Timestamp of earliest packet
+  *                               with last_win_count value sent
+  * @ccid3hctx_no_feedback_timer - Handle to no feedback timer
+  * @ccid3hctx_idle - FIXME
+  * @ccid3hctx_t_ld - Time last doubled during slow start
+  * @ccid3hctx_t_nom - Nominal send time of next packet
+  * @ccid3hctx_t_ipi - Interpacket (send) interval
+  * @ccid3hctx_delta - Send timer delta
+  * @ccid3hctx_hist - Packet history
+  */
+struct ccid3_hc_tx_sock {
+        u32                             ccid3hctx_x;
+        u32                             ccid3hctx_x_recv;
+        u32                             ccid3hctx_x_calc;
+        u16                             ccid3hctx_s;
+        u32                             ccid3hctx_rtt;
+        u32                             ccid3hctx_p;
+        u8                              ccid3hctx_state;
+        u8                              ccid3hctx_last_win_count;
+        u8                              ccid3hctx_idle;
+        struct timeval                  ccid3hctx_t_last_win_count;
+        struct timer_list               ccid3hctx_no_feedback_timer;
+        struct timeval                  ccid3hctx_t_ld;
+        struct timeval                  ccid3hctx_t_nom;
+        u32                             ccid3hctx_t_rto;
+        u32                             ccid3hctx_t_ipi;
+        u32                             ccid3hctx_delta;
+        struct list_head                ccid3hctx_hist;
+        struct ccid3_options_received   ccid3hctx_options_received;
+};
+struct ccid3_hc_rx_sock {
+        u64                     ccid3hcrx_seqno_last_counter:48,
+                                ccid3hcrx_state:8,
+                                ccid3hcrx_last_counter:4;
+        unsigned long           ccid3hcrx_rtt;
+        u32                     ccid3hcrx_p;
+        u32                     ccid3hcrx_bytes_recv;
+        struct timeval          ccid3hcrx_tstamp_last_feedback;
+        struct timeval          ccid3hcrx_tstamp_last_ack;
+        struct list_head        ccid3hcrx_hist;
+        struct list_head        ccid3hcrx_li_hist;
+        u16                     ccid3hcrx_s;
+        u32                     ccid3hcrx_pinv;
+        u32                     ccid3hcrx_elapsed_time;
+        u32                     ccid3hcrx_x_recv;
+};
+#define ccid3_hc_tx_field(s,field) (s->dccps_hc_tx_ccid_private == NULL ? 0 : \
+    ((struct ccid3_hc_tx_sock *)s->dccps_hc_tx_ccid_private)->ccid3hctx_##field)
+#define ccid3_hc_rx_field(s,field) (s->dccps_hc_rx_ccid_private == NULL ? 0 : \
+    ((struct ccid3_hc_rx_sock *)s->dccps_hc_rx_ccid_private)->ccid3hcrx_##field)
+#endif /* _DCCP_CCID3_H_ */

diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h new file mode 100644 index 000000000000..ee8cbace6630 --- /dev/null +++ b/net/dccp/ccids/ccid3.h
@@ -0,0 +1,137 @@
	1	/*
	2	* net/dccp/ccids/ccid3.h
	3	*
	4	* Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
	5	*
	6	* An implementation of the DCCP protocol
	7	*
	8	* This code has been developed by the University of Waikato WAND
	9	* research group. For further information please see http://www.wand.net.nz/
	10	* or e-mail Ian McDonald - iam4@cs.waikato.ac.nz
	11	*
	12	* This code also uses code from Lulea University, rereleased as GPL by its
	13	* authors:
	14	* Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
	15	*
	16	* Changes to meet Linux coding standards, to make it meet latest ccid3 draft
	17	* and to make it work as a loadable module in the DCCP stack written by
	18	* Arnaldo Carvalho de Melo <acme@conectiva.com.br>.
	19	*
	20	* Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
	21	*
	22	* This program is free software; you can redistribute it and/or modify
	23	* it under the terms of the GNU General Public License as published by
	24	* the Free Software Foundation; either version 2 of the License, or
	25	* (at your option) any later version.
	26	*
	27	* This program is distributed in the hope that it will be useful,
	28	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	29	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	30	* GNU General Public License for more details.
	31	*
	32	* You should have received a copy of the GNU General Public License
	33	* along with this program; if not, write to the Free Software
	34	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	35	*/
	36	#ifndef _DCCP_CCID3_H_
	37	#define _DCCP_CCID3_H_
	38
	39	#include <linux/config.h>
	40	#include <linux/list.h>
	41	#include <linux/time.h>
	42	#include <linux/types.h>
	43
	44	#define TFRC_MIN_PACKET_SIZE 16
	45	#define TFRC_STD_PACKET_SIZE 256
	46	#define TFRC_MAX_PACKET_SIZE 65535
	47
	48	/* Two seconds as per CCID3 spec */
	49	#define TFRC_INITIAL_TIMEOUT (2 * USEC_PER_SEC)
	50
	51	/* In usecs - half the scheduling granularity as per RFC3448 4.6 */
	52	#define TFRC_OPSYS_HALF_TIME_GRAN (USEC_PER_SEC / (2 * HZ))
	53
	54	/* In seconds */
	55	#define TFRC_MAX_BACK_OFF_TIME 64
	56
	57	#define TFRC_SMALLEST_P 40
	58
	59	enum ccid3_options {
	60	TFRC_OPT_LOSS_EVENT_RATE = 192,
	61	TFRC_OPT_LOSS_INTERVALS = 193,
	62	TFRC_OPT_RECEIVE_RATE = 194,
	63	};
	64
	65	struct ccid3_options_received {
	66	u64 ccid3or_seqno:48,
	67	ccid3or_loss_intervals_idx:16;
	68	u16 ccid3or_loss_intervals_len;
	69	u32 ccid3or_loss_event_rate;
	70	u32 ccid3or_receive_rate;
	71	};
	72
	73	/** struct ccid3_hc_tx_sock - CCID3 sender half connection sock
	74	*
	75	* @ccid3hctx_state - Sender state
	76	* @ccid3hctx_x - Current sending rate
	77	* @ccid3hctx_x_recv - Receive rate
	78	* @ccid3hctx_x_calc - Calculated send (?) rate
	79	* @ccid3hctx_s - Packet size
	80	* @ccid3hctx_rtt - Estimate of current round trip time in usecs
	81	* @@ccid3hctx_p - Current loss event rate (0-1) scaled by 1000000
	82	* @ccid3hctx_last_win_count - Last window counter sent
	83	* @ccid3hctx_t_last_win_count - Timestamp of earliest packet
	84	* with last_win_count value sent
	85	* @ccid3hctx_no_feedback_timer - Handle to no feedback timer
	86	* @ccid3hctx_idle - FIXME
	87	* @ccid3hctx_t_ld - Time last doubled during slow start
	88	* @ccid3hctx_t_nom - Nominal send time of next packet
	89	* @ccid3hctx_t_ipi - Interpacket (send) interval
	90	* @ccid3hctx_delta - Send timer delta
	91	* @ccid3hctx_hist - Packet history
	92	*/
	93	struct ccid3_hc_tx_sock {
	94	u32 ccid3hctx_x;
	95	u32 ccid3hctx_x_recv;
	96	u32 ccid3hctx_x_calc;
	97	u16 ccid3hctx_s;
	98	u32 ccid3hctx_rtt;
	99	u32 ccid3hctx_p;
	100	u8 ccid3hctx_state;
	101	u8 ccid3hctx_last_win_count;
	102	u8 ccid3hctx_idle;
	103	struct timeval ccid3hctx_t_last_win_count;
	104	struct timer_list ccid3hctx_no_feedback_timer;
	105	struct timeval ccid3hctx_t_ld;
	106	struct timeval ccid3hctx_t_nom;
	107	u32 ccid3hctx_t_rto;
	108	u32 ccid3hctx_t_ipi;
	109	u32 ccid3hctx_delta;
	110	struct list_head ccid3hctx_hist;
	111	struct ccid3_options_received ccid3hctx_options_received;
	112	};
	113
	114	struct ccid3_hc_rx_sock {
	115	u64 ccid3hcrx_seqno_last_counter:48,
	116	ccid3hcrx_state:8,
	117	ccid3hcrx_last_counter:4;
	118	unsigned long ccid3hcrx_rtt;
	119	u32 ccid3hcrx_p;
	120	u32 ccid3hcrx_bytes_recv;
	121	struct timeval ccid3hcrx_tstamp_last_feedback;
	122	struct timeval ccid3hcrx_tstamp_last_ack;
	123	struct list_head ccid3hcrx_hist;
	124	struct list_head ccid3hcrx_li_hist;
	125	u16 ccid3hcrx_s;
	126	u32 ccid3hcrx_pinv;
	127	u32 ccid3hcrx_elapsed_time;
	128	u32 ccid3hcrx_x_recv;
	129	};
	130
	131	#define ccid3_hc_tx_field(s,field) (s->dccps_hc_tx_ccid_private == NULL ? 0 : \
	132	((struct ccid3_hc_tx_sock *)s->dccps_hc_tx_ccid_private)->ccid3hctx_##field)
	133
	134	#define ccid3_hc_rx_field(s,field) (s->dccps_hc_rx_ccid_private == NULL ? 0 : \
	135	((struct ccid3_hc_rx_sock *)s->dccps_hc_rx_ccid_private)->ccid3hcrx_##field)
	136
	137	#endif /* _DCCP_CCID3_H_ */