Return to tcp_debug.c CVS log

Up to [CSRG BSD Unix] / 43BSD / sys / netinet

Annotation of 43BSD/sys/netinet/tcp_debug.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)tcp_debug.c 7.1 (Berkeley) 6/5/86
                      7:  */
                      8: 
                      9: #include "param.h"
                     10: #include "systm.h"
                     11: #include "mbuf.h"
                     12: #include "socket.h"
                     13: #include "socketvar.h"
                     14: #define PRUREQUESTS
                     15: #include "protosw.h"
                     16: #include "errno.h"
                     17: 
                     18: #include "../net/route.h"
                     19: #include "../net/if.h"
                     20: 
                     21: #include "in.h"
                     22: #include "in_pcb.h"
                     23: #include "in_systm.h"
                     24: #include "ip.h"
                     25: #include "ip_var.h"
                     26: #include "tcp.h"
                     27: #define TCPSTATES
                     28: #include "tcp_fsm.h"
                     29: #include "tcp_seq.h"
                     30: #define        TCPTIMERS
                     31: #include "tcp_timer.h"
                     32: #include "tcp_var.h"
                     33: #include "tcpip.h"
                     34: #define        TANAMES
                     35: #include "tcp_debug.h"
                     36: 
                     37: int    tcpconsdebug = 0;
                     38: /*
                     39:  * Tcp debug routines
                     40:  */
                     41: tcp_trace(act, ostate, tp, ti, req)
                     42:        short act, ostate;
                     43:        struct tcpcb *tp;
                     44:        struct tcpiphdr *ti;
                     45:        int req;
                     46: {
                     47:        tcp_seq seq, ack;
                     48:        int len, flags;
                     49:        struct tcp_debug *td = &tcp_debug[tcp_debx++];
                     50: 
                     51:        if (tcp_debx == TCP_NDEBUG)
                     52:                tcp_debx = 0;
                     53:        td->td_time = iptime();
                     54:        td->td_act = act;
                     55:        td->td_ostate = ostate;
                     56:        td->td_tcb = (caddr_t)tp;
                     57:        if (tp)
                     58:                td->td_cb = *tp;
                     59:        else
                     60:                bzero((caddr_t)&td->td_cb, sizeof (*tp));
                     61:        if (ti)
                     62:                td->td_ti = *ti;
                     63:        else
                     64:                bzero((caddr_t)&td->td_ti, sizeof (*ti));
                     65:        td->td_req = req;
                     66:        if (tcpconsdebug == 0)
                     67:                return;
                     68:        if (tp)
                     69:                printf("%x %s:", tp, tcpstates[ostate]);
                     70:        else
                     71:                printf("???????? ");
                     72:        printf("%s ", tanames[act]);
                     73:        switch (act) {
                     74: 
                     75:        case TA_INPUT:
                     76:        case TA_OUTPUT:
                     77:        case TA_DROP:
                     78:                if (ti == 0)
                     79:                        break;
                     80:                seq = ti->ti_seq;
                     81:                ack = ti->ti_ack;
                     82:                len = ti->ti_len;
                     83:                if (act == TA_OUTPUT) {
                     84:                        seq = ntohl(seq);
                     85:                        ack = ntohl(ack);
                     86:                        len = ntohs((u_short)len);
                     87:                }
                     88:                if (act == TA_OUTPUT)
                     89:                        len -= sizeof (struct tcphdr);
                     90:                if (len)
                     91:                        printf("[%x..%x)", seq, seq+len);
                     92:                else
                     93:                        printf("%x", seq);
                     94:                printf("@%x, urp=%x", ack, ti->ti_urp);
                     95:                flags = ti->ti_flags;
                     96:                if (flags) {
                     97: #ifndef lint
                     98:                        char *cp = "<";
                     99: #define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
                    100:                        pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
                    101: #endif
                    102:                        printf(">");
                    103:                }
                    104:                break;
                    105: 
                    106:        case TA_USER:
                    107:                printf("%s", prurequests[req&0xff]);
                    108:                if ((req & 0xff) == PRU_SLOWTIMO)
                    109:                        printf("<%s>", tcptimers[req>>8]);
                    110:                break;
                    111:        }
                    112:        if (tp)
                    113:                printf(" -> %s", tcpstates[tp->t_state]);
                    114:        /* print out internal state of tp !?! */
                    115:        printf("\n");
                    116:        if (tp == 0)
                    117:                return;
                    118:        printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
                    119:            tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
                    120:            tp->snd_max);
                    121:        printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
                    122:            tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
                    123: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.