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1.1 root 1: /* tcp_debug.c 6.1 83/07/29 */
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 "../h/errno.h"
11:
12: #include "../net/route.h"
13: #include "../net/if.h"
14:
15: #include "../netinet/in.h"
16: #include "../netinet/in_pcb.h"
17: #include "../netinet/in_systm.h"
18: #include "../netinet/ip.h"
19: #include "../netinet/ip_var.h"
20: #include "../netinet/tcp.h"
21: #define TCPSTATES
22: #include "../netinet/tcp_fsm.h"
23: #include "../netinet/tcp_seq.h"
24: #define TCPTIMERS
25: #include "../netinet/tcp_timer.h"
26: #include "../netinet/tcp_var.h"
27: #include "../netinet/tcpip.h"
28: #define TANAMES
29: #include "../netinet/tcp_debug.h"
30:
31: int tcpconsdebug = 0;
32: /*
33: * Tcp debug routines
34: */
35: tcp_trace(act, ostate, tp, ti, req)
36: short act, ostate;
37: struct tcpcb *tp;
38: struct tcpiphdr *ti;
39: int req;
40: {
41: tcp_seq seq, ack;
42: int len, flags;
43: struct tcp_debug *td = &tcp_debug[tcp_debx++];
44:
45: if (tcp_debx == TCP_NDEBUG)
46: tcp_debx = 0;
47: td->td_time = iptime();
48: td->td_act = act;
49: td->td_ostate = ostate;
50: td->td_tcb = (caddr_t)tp;
51: if (tp)
52: td->td_cb = *tp;
53: else
54: bzero((caddr_t)&td->td_cb, sizeof (*tp));
55: if (ti)
56: td->td_ti = *ti;
57: else
58: bzero((caddr_t)&td->td_ti, sizeof (*ti));
59: td->td_req = req;
60: if (tcpconsdebug == 0)
61: return;
62: if (tp)
63: printf("%x %s:", tp, tcpstates[ostate]);
64: else
65: printf("???????? ");
66: printf("%s ", tanames[act]);
67: switch (act) {
68:
69: case TA_INPUT:
70: case TA_OUTPUT:
71: case TA_DROP:
72: if (ti == 0)
73: break;
74: seq = ti->ti_seq;
75: ack = ti->ti_ack;
76: len = ti->ti_len;
77: if (act == TA_OUTPUT) {
78: seq = ntohl(seq);
79: ack = ntohl(ack);
80: len = ntohs((u_short)len);
81: }
82: if (act == TA_OUTPUT)
83: len -= sizeof (struct tcphdr);
84: if (len)
85: printf("[%x..%x)", seq, seq+len);
86: else
87: printf("%x", seq);
88: printf("@%x, urp=%x", ack, ti->ti_urp);
89: flags = ti->ti_flags;
90: if (flags) {
91: #ifndef lint
92: char *cp = "<";
93: #define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
94: pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
95: #endif
96: printf(">");
97: }
98: break;
99:
100: case TA_USER:
101: printf("%s", prurequests[req&0xff]);
102: if ((req & 0xff) == PRU_SLOWTIMO)
103: printf("<%s>", tcptimers[req>>8]);
104: break;
105: }
106: if (tp)
107: printf(" -> %s", tcpstates[tp->t_state]);
108: /* print out internal state of tp !?! */
109: printf("\n");
110: if (tp == 0)
111: return;
112: printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
113: tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
114: tp->snd_max);
115: printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
116: tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
117: }
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