Watt-32 tcp/ip  2.2 dev-rel.10
tcp_debu.h
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1 
5 /*
6  * Copyright (c) 1982, 1986, 1993
7  * The Regents of the University of California. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  * notice, this list of conditions and the following disclaimer in the
16  * documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  * must display the following acknowledgement:
19  * This product includes software developed by the University of
20  * California, Berkeley and its contributors.
21  * 4. Neither the name of the University nor the names of its contributors
22  * may be used to endorse or promote products derived from this software
23  * without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  * @(#)tcp_debug.h 8.1 (Berkeley) 6/10/93
38  * $Id: tcp_debug.h,v 1.5 1996/04/13 12:45:57 bde Exp $
39  */
40 
41 #ifndef __NETINET_TCP_DEBUG_H
42 #define __NETINET_TCP_DEBUG_H
43 
44 struct tcp_debug {
45  n_time td_time;
46  short td_act;
47  short td_ostate;
48  caddr_t td_tcb;
49  struct tcpiphdr td_ti;
50  short td_req;
51  struct tcpcb td_cb;
52  };
53 
54 #define TA_INPUT 0
55 #define TA_OUTPUT 1
56 #define TA_USER 2
57 #define TA_RESPOND 3
58 #define TA_DROP 4
59 
60 #ifdef TANAMES
61 static char *tanames[] = {
62  "input", "output", "user", "respond", "drop"
63  };
64 #endif
65 
66 #define TCP_NDEBUG 100
67 
68 #ifdef TCP_AUTO_DEBUG
69 #include <sys/wtime.h>
70 
71 /* The following table is used as a circular buffer in which TCP
72  * autotuning statistics can be kept.
73  * It is intended that these statistics will be periodically read
74  * by a debugging application using kvm.
75  */
76 
77 #define TAD_ENTRIES 1024 /* number of entries in monitor_table */
78 
79 struct tad_entry {
80  u_long seq_no; /* tad entry number */
81  struct timeval time; /* time of entry */
82  u_long snd_cwnd; /* congestion window */
83  u_long sb_hiwat; /* send socket buffer hi water mark */
84  u_long sb_target_hiwat; /* target for same */
85  u_long sb_cc; /* space used in send socket buf */
86  u_long m_clused; /* m_clusters - m_clfree */
87  u_short lport; /* local port number */
88  u_short rport; /* remote port number */
89  u_long debug; /* used for debugging */
90  tcp_seq snd_max; /* highest sequence number sent */
91  } tad_table[TAD_ENTRIES];
92 
93 extern struct tad_entry *tad_index; /* insert point */
94 extern u_long tad_seq;
95 extern u_long tad_debug;
96 
97 /* increment the index into the table
98  */
99 #define TAD_INDEX_INCR tad_index = (struct tad_entry*)((u_long)tad_index + \
100  sizeof(struct tad_entry)); \
101  if ((u_long) tad_index >= \
102  (u_long) &tad_table[TAD_ENTRIES]) \
103  tad_index = tad_table;
104 
105 /* add a log entry to the table
106  */
107 #define TAD_SNAPSHOT(tp, so) tad_index->seq_no = tad_seq++; \
108  microtime(&(tad_index->time)); \
109  tad_index->snd_cwnd = tp->snd_cwnd; \
110  tad_index->sb_hiwat = so->so_snd.sb_hiwat; \
111  tad_index->sb_target_hiwat = so->so_snd.sb_net_target; \
112  tad_index->sb_cc = so->so_snd.sb_cc; \
113  tad_index->m_clused = mbstat.m_clusters - mbstat.m_clfree;\
114  tad_index->lport = tp->t_inpcb->inp_lport; \
115  tad_index->rport = tp->t_inpcb->inp_fport; \
116  tad_index->debug = tad_debug; \
117  tad_index->snd_max = tp->snd_max; \
118  TAD_INDEX_INCR;
119 
120 #endif /* TCP_AUTO_DEBUG */
121 
122 #endif /* __NETINET_TCP_DEBUG_H */
Definition: tcpip.h:49
Definition: tcp_var.h:78
Definition: wtime.h:38
Definition: tcp_debu.h:79