1 /* tcp_debug.c 4.1 81/12/22 */ 2 3 #include "../h/param.h" 4 #include "../h/systm.h" 5 #include "../h/mbuf.h" 6 #include "../h/socket.h" 7 #include "../h/socketvar.h" 8 #define PRUREQUESTS 9 #include "../h/protosw.h" 10 #include "../net/in.h" 11 #include "../net/in_pcb.h" 12 #include "../net/in_systm.h" 13 #include "../net/if.h" 14 #include "../net/ip.h" 15 #include "../net/ip_var.h" 16 #include "../net/tcp.h" 17 #define TCPSTATES 18 #include "../net/tcp_fsm.h" 19 #include "../net/tcp_seq.h" 20 #define TCPTIMERS 21 #include "../net/tcp_timer.h" 22 #include "../net/tcp_var.h" 23 #include "../net/tcpip.h" 24 #define TANAMES 25 #include "../net/tcp_debug.h" 26 #include "../errno.h" 27 28 int tcpconsdebug = 0; 29 /* 30 * Tcp debug routines 31 */ 32 tcp_trace(act, ostate, tp, ti, req) 33 short act, ostate; 34 struct tcpcb *tp; 35 struct tcpiphdr *ti; 36 int req; 37 { 38 tcp_seq seq, ack; 39 int len, flags; 40 char *cp; 41 struct tcp_debug *td = &tcp_debug[tcp_debx++]; 42 43 if (tcp_debx == TCP_NDEBUG) 44 tcp_debx = 0; 45 td->td_time = iptime(); 46 td->td_act = act; 47 td->td_ostate = ostate; 48 td->td_tcb = (caddr_t)tp; 49 if (tp) 50 td->td_cb = *tp; 51 else 52 bzero((caddr_t)&td->td_cb, sizeof (*tp)); 53 if (ti) 54 td->td_ti = *ti; 55 else 56 bzero((caddr_t)&td->td_ti, sizeof (*ti)); 57 td->td_req = req; 58 if (tcpconsdebug == 0) 59 return; 60 if (tp) 61 printf("%x %s:", tp, tcpstates[ostate]); 62 else 63 printf("???????? "); 64 printf("%s ", tanames[act]); 65 switch (act) { 66 67 case TA_INPUT: 68 case TA_OUTPUT: 69 seq = ti->ti_seq; 70 ack = ti->ti_ack; 71 len = ti->ti_len; 72 #if vax 73 if (act == TA_OUTPUT) { 74 seq = ntohl(seq); 75 ack = ntohl(ack); 76 len = ntohs(len); 77 } 78 #endif 79 if (act == TA_OUTPUT) 80 len -= sizeof (struct tcphdr); 81 if (len) 82 printf("[%x..%x)", seq, seq+len); 83 else 84 printf("%x", seq); 85 printf("@%x", ack); 86 flags = ti->ti_flags; 87 if (flags) { 88 char *cp = "<"; 89 #define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } } 90 pf(SYN); pf(ACK); pf(FIN); pf(RST); 91 printf(">"); 92 } 93 break; 94 95 case TA_USER: 96 printf("%s", prurequests[req&0xff]); 97 if ((req & 0xff) == PRU_SLOWTIMO) 98 printf("<%s>", tcptimers[req>>8]); 99 break; 100 } 101 if (tp) 102 printf(" -> %s", tcpstates[tp->t_state]); 103 /* print out internal state of tp !?! */ 104 printf("\n"); 105 if (tp == 0) 106 return; 107 printf("\trcv_(nxt,wnd) (%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n", 108 tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt, tp->snd_max); 109 printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n", 110 tp->snd_wl1, tp->snd_wl2, tp->snd_wnd); 111 } 112