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1.1 root 1: /*
2: * Copyright (c) 1982, 1986 Regents of the University of California.
3: * 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: *
1.1.1.2 ! root 33: * from: @(#)tcp_debug.c 7.6 (Berkeley) 6/28/90
! 34: * tcp_debug.c,v 1.3 1993/05/22 11:42:39 cgd Exp
1.1 root 35: */
36:
37: #ifdef TCPDEBUG
38: /* load symbolic names */
39: #define PRUREQUESTS
40: #define TCPSTATES
41: #define TCPTIMERS
42: #define TANAMES
43: #endif
44:
45: #include "param.h"
46: #include "systm.h"
47: #include "mbuf.h"
48: #include "socket.h"
49: #include "socketvar.h"
50: #include "protosw.h"
51: #include "errno.h"
52:
53: #include "../net/route.h"
54: #include "../net/if.h"
55:
56: #include "in.h"
57: #include "in_systm.h"
58: #include "ip.h"
59: #include "in_pcb.h"
60: #include "ip_var.h"
61: #include "tcp.h"
62: #include "tcp_fsm.h"
63: #include "tcp_seq.h"
64: #include "tcp_timer.h"
65: #include "tcp_var.h"
66: #include "tcpip.h"
67: #include "tcp_debug.h"
68:
69: #ifdef TCPDEBUG
70: int tcpconsdebug = 0;
71: #endif
72: /*
73: * Tcp debug routines
74: */
75: tcp_trace(act, ostate, tp, ti, req)
76: short act, ostate;
77: struct tcpcb *tp;
78: struct tcpiphdr *ti;
79: int req;
80: {
81: tcp_seq seq, ack;
82: int len, flags;
83: struct tcp_debug *td = &tcp_debug[tcp_debx++];
84:
85: if (tcp_debx == TCP_NDEBUG)
86: tcp_debx = 0;
87: td->td_time = iptime();
88: td->td_act = act;
89: td->td_ostate = ostate;
90: td->td_tcb = (caddr_t)tp;
91: if (tp)
92: td->td_cb = *tp;
93: else
94: bzero((caddr_t)&td->td_cb, sizeof (*tp));
95: if (ti)
96: td->td_ti = *ti;
97: else
98: bzero((caddr_t)&td->td_ti, sizeof (*ti));
99: td->td_req = req;
100: #ifdef TCPDEBUG
101: if (tcpconsdebug == 0)
102: return;
103: if (tp)
104: printf("%x %s:", tp, tcpstates[ostate]);
105: else
106: printf("???????? ");
107: printf("%s ", tanames[act]);
108: switch (act) {
109:
110: case TA_INPUT:
111: case TA_OUTPUT:
112: case TA_DROP:
113: if (ti == 0)
114: break;
115: seq = ti->ti_seq;
116: ack = ti->ti_ack;
117: len = ti->ti_len;
118: if (act == TA_OUTPUT) {
119: seq = ntohl(seq);
120: ack = ntohl(ack);
121: len = ntohs((u_short)len);
122: }
123: if (act == TA_OUTPUT)
124: len -= sizeof (struct tcphdr);
125: if (len)
126: printf("[%x..%x)", seq, seq+len);
127: else
128: printf("%x", seq);
129: printf("@%x, urp=%x", ack, ti->ti_urp);
130: flags = ti->ti_flags;
131: if (flags) {
132: #ifndef lint
133: char *cp = "<";
134: #define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
135: pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
136: #endif
137: printf(">");
138: }
139: break;
140:
141: case TA_USER:
142: printf("%s", prurequests[req&0xff]);
143: if ((req & 0xff) == PRU_SLOWTIMO)
144: printf("<%s>", tcptimers[req>>8]);
145: break;
146: }
147: if (tp)
148: printf(" -> %s", tcpstates[tp->t_state]);
149: /* print out internal state of tp !?! */
150: printf("\n");
151: if (tp == 0)
152: return;
153: printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
154: tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
155: tp->snd_max);
156: printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
157: tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
158: #endif /* TCPDEBUG */
159: }
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