2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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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
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33 * @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93
38 #include "opt_inet6.h"
39 #include "opt_tcpdebug.h"
42 #error The option TCPDEBUG requires option INET.
46 /* load symbolic names */
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/protosw.h>
56 #include <sys/socket.h>
58 #include <netinet/in.h>
59 #include <netinet/in_systm.h>
60 #include <netinet/ip.h>
62 #include <netinet/ip6.h>
64 #include <netinet/ip_var.h>
65 #include <netinet/tcp.h>
66 #include <netinet/tcp_fsm.h>
67 #include <netinet/tcp_timer.h>
68 #include <netinet/tcp_var.h>
69 #include <netinet/tcpip.h>
70 #include <netinet/tcp_debug.h>
73 static int tcpconsdebug = 0;
76 static struct tcp_debug tcp_debug[TCP_NDEBUG];
83 tcp_trace(act, ostate, tp, ipgen, th, req)
95 struct tcp_debug *td = &tcp_debug[tcp_debx++];
98 isipv6 = (ipgen != NULL && ((struct ip *)ipgen)->ip_v == 6) ? 1 : 0;
102 (isipv6 != 0) ? AF_INET6 :
105 if (tcp_debx == TCP_NDEBUG)
107 td->td_time = iptime();
109 td->td_ostate = ostate;
110 td->td_tcb = (caddr_t)tp;
114 bzero((caddr_t)&td->td_cb, sizeof (*tp));
116 switch (td->td_family) {
118 bcopy((caddr_t)ipgen, (caddr_t)&td->td_ti.ti_i,
119 sizeof(td->td_ti.ti_i));
120 bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf));
124 bcopy((caddr_t)ipgen, (caddr_t)td->td_ip6buf,
125 sizeof(td->td_ip6buf));
126 bzero((caddr_t)&td->td_ti.ti_i,
127 sizeof(td->td_ti.ti_i));
131 bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf));
132 bzero((caddr_t)&td->td_ti.ti_i,
133 sizeof(td->td_ti.ti_i));
137 bzero((caddr_t)&td->td_ti.ti_i, sizeof(td->td_ti.ti_i));
138 bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf));
141 switch (td->td_family) {
143 td->td_ti.ti_t = *th;
144 bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th));
149 bzero((caddr_t)&td->td_ti.ti_t,
150 sizeof(td->td_ti.ti_t));
154 bzero((caddr_t)&td->td_ti.ti_t,
155 sizeof(td->td_ti.ti_t));
156 bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th));
160 bzero((caddr_t)&td->td_ti.ti_t, sizeof(td->td_ti.ti_t));
161 bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th));
165 if (tcpconsdebug == 0)
168 printf("%p %s:", tp, tcpstates[ostate]);
171 printf("%s ", tanames[act]);
177 if (ipgen == NULL || th == NULL)
183 isipv6 ? ((struct ip6_hdr *)ipgen)->ip6_plen :
185 ((struct ip *)ipgen)->ip_len;
186 if (act == TA_OUTPUT) {
189 len = ntohs((u_short)len);
191 if (act == TA_OUTPUT)
192 len -= sizeof (struct tcphdr);
194 printf("[%x..%x)", seq, seq+len);
197 printf("@%x, urp=%x", ack, th->th_urp);
198 flags = th->th_flags;
202 if (th->th_flags & TH_##f) { \
203 printf("%s%s", cp, #f); \
207 pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
213 printf("%s", prurequests[req&0xff]);
214 if ((req & 0xff) == PRU_SLOWTIMO)
215 printf("<%s>", tcptimers[req>>8]);
219 printf(" -> %s", tcpstates[tp->t_state]);
220 /* print out internal state of tp !?! */
225 "\trcv_(nxt,wnd,up) (%lx,%lx,%lx) snd_(una,nxt,max) (%lx,%lx,%lx)\n",
226 (u_long)tp->rcv_nxt, tp->rcv_wnd, (u_long)tp->rcv_up,
227 (u_long)tp->snd_una, (u_long)tp->snd_nxt, (u_long)tp->snd_max);
228 printf("\tsnd_(wl1,wl2,wnd) (%lx,%lx,%lx)\n",
229 (u_long)tp->snd_wl1, (u_long)tp->snd_wl2, tp->snd_wnd);
230 #endif /* TCPDEBUG */