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| /*!\file netinet/tcp_debu.h |
| * TCP debugging. |
| */ |
| |
| /* |
| * Copyright (c) 1982, 1986, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. |
| * |
| * @(#)tcp_debug.h 8.1 (Berkeley) 6/10/93 |
| * $Id: tcp_debug.h,v 1.5 1996/04/13 12:45:57 bde Exp $ |
| */ |
| |
| #ifndef __NETINET_TCP_DEBUG_H |
| #define __NETINET_TCP_DEBUG_H |
| |
| struct tcp_debug { |
| n_time td_time; |
| short td_act; |
| short td_ostate; |
| caddr_t td_tcb; |
| struct tcpiphdr td_ti; |
| short td_req; |
| struct tcpcb td_cb; |
| }; |
| |
| #define TA_INPUT 0 |
| #define TA_OUTPUT 1 |
| #define TA_USER 2 |
| #define TA_RESPOND 3 |
| #define TA_DROP 4 |
| |
| #ifdef TANAMES |
| static char *tanames[] = { |
| "input", "output", "user", "respond", "drop" |
| }; |
| #endif |
| |
| #define TCP_NDEBUG 100 |
| |
| #ifdef TCP_AUTO_DEBUG |
| #include <sys/wtime.h> |
| |
| /* The following table is used as a circular buffer in which TCP |
| * autotuning statistics can be kept. |
| * It is intended that these statistics will be periodically read |
| * by a debugging application using kvm. |
| */ |
| |
| #define TAD_ENTRIES 1024 /* number of entries in monitor_table */ |
| |
| struct tad_entry { |
| u_long seq_no; /* tad entry number */ |
| struct timeval time; /* time of entry */ |
| u_long snd_cwnd; /* congestion window */ |
| u_long sb_hiwat; /* send socket buffer hi water mark */ |
| u_long sb_target_hiwat; /* target for same */ |
| u_long sb_cc; /* space used in send socket buf */ |
| u_long m_clused; /* m_clusters - m_clfree */ |
| u_short lport; /* local port number */ |
| u_short rport; /* remote port number */ |
| u_long debug; /* used for debugging */ |
| tcp_seq snd_max; /* highest sequence number sent */ |
| } tad_table[TAD_ENTRIES]; |
| |
| extern struct tad_entry *tad_index; /* insert point */ |
| extern u_long tad_seq; |
| extern u_long tad_debug; |
| |
| /* increment the index into the table |
| */ |
| #define TAD_INDEX_INCR tad_index = (struct tad_entry*)((u_long)tad_index + \ |
| sizeof(struct tad_entry)); \ |
| if ((u_long) tad_index >= \ |
| (u_long) &tad_table[TAD_ENTRIES]) \ |
| tad_index = tad_table; |
| |
| /* add a log entry to the table |
| */ |
| #define TAD_SNAPSHOT(tp, so) tad_index->seq_no = tad_seq++; \ |
| microtime(&(tad_index->time)); \ |
| tad_index->snd_cwnd = tp->snd_cwnd; \ |
| tad_index->sb_hiwat = so->so_snd.sb_hiwat; \ |
| tad_index->sb_target_hiwat = so->so_snd.sb_net_target; \ |
| tad_index->sb_cc = so->so_snd.sb_cc; \ |
| tad_index->m_clused = mbstat.m_clusters - mbstat.m_clfree;\ |
| tad_index->lport = tp->t_inpcb->inp_lport; \ |
| tad_index->rport = tp->t_inpcb->inp_fport; \ |
| tad_index->debug = tad_debug; \ |
| tad_index->snd_max = tp->snd_max; \ |
| TAD_INDEX_INCR; |
| |
| #endif /* TCP_AUTO_DEBUG */ |
| |
| #endif /* __NETINET_TCP_DEBUG_H */ |