source: rtems/c/src/exec/libnetworking/netinet/tcp_debug.c @ 50ea4814

4.104.114.84.95
Last change on this file since 50ea4814 was 39e6e65a, checked in by Joel Sherrill <joel.sherrill@…>, on 08/19/98 at 21:32:28

Base files

  • Property mode set to 100644
File size: 4.6 KB
Line 
1/*
2 * Copyright (c) 1982, 1986, 1993
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed by the University of
16 *      California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *      @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93
34 * $Id$
35 */
36
37#include "opt_tcpdebug.h"
38
39#ifdef TCPDEBUG
40/* load symbolic names */
41#define PRUREQUESTS
42#define TCPSTATES
43#define TCPTIMERS
44#define TANAMES
45#endif
46
47#include <sys/param.h>
48#include <sys/queue.h>
49#include <sys/systm.h>
50#include <sys/mbuf.h>
51#include <sys/socket.h>
52#include <sys/socketvar.h>
53#include <sys/protosw.h>
54#include <sys/errno.h>
55
56#include <net/route.h>
57#include <net/if.h>
58
59#include <netinet/in.h>
60#include <netinet/in_systm.h>
61#include <netinet/ip.h>
62#include <netinet/in_pcb.h>
63#include <netinet/ip_var.h>
64#include <netinet/tcp.h>
65#include <netinet/tcp_fsm.h>
66#include <netinet/tcp_seq.h>
67#include <netinet/tcp_timer.h>
68#include <netinet/tcp_var.h>
69#include <netinet/tcpip.h>
70#include <netinet/tcp_debug.h>
71
72#ifdef TCPDEBUG
73static int      tcpconsdebug = 0;
74#endif
75
76static struct tcp_debug tcp_debug[TCP_NDEBUG];
77static int      tcp_debx;
78
79/*
80 * Tcp debug routines
81 */
82void
83tcp_trace(act, ostate, tp, ti, req)
84        short act, ostate;
85        struct tcpcb *tp;
86        struct tcpiphdr *ti;
87        int req;
88{
89        tcp_seq seq, ack;
90        int len, flags;
91        struct tcp_debug *td = &tcp_debug[tcp_debx++];
92
93        if (tcp_debx == TCP_NDEBUG)
94                tcp_debx = 0;
95        td->td_time = iptime();
96        td->td_act = act;
97        td->td_ostate = ostate;
98        td->td_tcb = (caddr_t)tp;
99        if (tp)
100                td->td_cb = *tp;
101        else
102                bzero((caddr_t)&td->td_cb, sizeof (*tp));
103        if (ti)
104                td->td_ti = *ti;
105        else
106                bzero((caddr_t)&td->td_ti, sizeof (*ti));
107        td->td_req = req;
108#ifdef TCPDEBUG
109        if (tcpconsdebug == 0)
110                return;
111        if (tp)
112                printf("%p %s:", tp, tcpstates[ostate]);
113        else
114                printf("???????? ");
115        printf("%s ", tanames[act]);
116        switch (act) {
117
118        case TA_INPUT:
119        case TA_OUTPUT:
120        case TA_DROP:
121                if (ti == 0)
122                        break;
123                seq = ti->ti_seq;
124                ack = ti->ti_ack;
125                len = ti->ti_len;
126                if (act == TA_OUTPUT) {
127                        seq = ntohl(seq);
128                        ack = ntohl(ack);
129                        len = ntohs((u_short)len);
130                }
131                if (act == TA_OUTPUT)
132                        len -= sizeof (struct tcphdr);
133                if (len)
134                        printf("[%x..%x)", seq, seq+len);
135                else
136                        printf("%x", seq);
137                printf("@%x, urp=%x", ack, ti->ti_urp);
138                flags = ti->ti_flags;
139                if (flags) {
140                        char *cp = "<";
141#define pf(f) {                                 \
142        if (ti->ti_flags & TH_##f) {            \
143                printf("%s%s", cp, #f);         \
144                cp = ",";                       \
145        }                                       \
146}
147                        pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
148                        printf(">");
149                }
150                break;
151
152        case TA_USER:
153                printf("%s", prurequests[req&0xff]);
154                if ((req & 0xff) == PRU_SLOWTIMO)
155                        printf("<%s>", tcptimers[req>>8]);
156                break;
157        }
158        if (tp)
159                printf(" -> %s", tcpstates[tp->t_state]);
160        /* print out internal state of tp !?! */
161        printf("\n");
162        if (tp == 0)
163                return;
164        printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
165            tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
166            tp->snd_max);
167        printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
168            tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
169#endif /* TCPDEBUG */
170}
Note: See TracBrowser for help on using the repository browser.