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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [netinet/] [tcp_debug.c] - Rev 173
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/* * Copyright (c) 1982, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93 * $Id: tcp_debug.c,v 1.2 2001-09-27 12:01:56 chris Exp $ */ #include "opt_tcpdebug.h" #ifdef TCPDEBUG /* load symbolic names */ #define PRUREQUESTS #define TCPSTATES #define TCPTIMERS #define TANAMES #endif #include <sys/param.h> #include <sys/queue.h> #include <sys/systm.h> #include <sys/mbuf.h> #include <sys/socket.h> #include <sys/socketvar.h> #include <sys/protosw.h> #include <sys/errno.h> #include <net/route.h> #include <net/if.h> #include <netinet/in.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <netinet/in_pcb.h> #include <netinet/ip_var.h> #include <netinet/tcp.h> #include <netinet/tcp_fsm.h> #include <netinet/tcp_seq.h> #include <netinet/tcp_timer.h> #include <netinet/tcp_var.h> #include <netinet/tcpip.h> #include <netinet/tcp_debug.h> #ifdef TCPDEBUG static int tcpconsdebug = 0; /* set to 1 to enable prints */ #endif static struct tcp_debug tcp_debug[TCP_NDEBUG]; static int tcp_debx; /* * Tcp debug routines */ void tcp_trace(act, ostate, tp, ti, req) short act, ostate; struct tcpcb *tp; struct tcpiphdr *ti; int req; { #ifdef TCPDEBUG tcp_seq seq, ack; int len, flags; #endif struct tcp_debug *td = &tcp_debug[tcp_debx++]; if (tcp_debx == TCP_NDEBUG) tcp_debx = 0; td->td_time = iptime(); td->td_act = act; td->td_ostate = ostate; td->td_tcb = (caddr_t)tp; if (tp) td->td_cb = *tp; else bzero((caddr_t)&td->td_cb, sizeof (*tp)); if (ti) td->td_ti = *ti; else bzero((caddr_t)&td->td_ti, sizeof (*ti)); td->td_req = req; #ifdef TCPDEBUG if (tcpconsdebug == 0) return; if (tp) printf("%p %s:", tp, tcpstates[ostate]); else printf("???????? "); printf("%s ", tanames[act]); switch (act) { case TA_INPUT: case TA_OUTPUT: case TA_DROP: if (ti == 0) break; seq = ti->ti_seq; ack = ti->ti_ack; len = ti->ti_len; if (act == TA_OUTPUT) { seq = ntohl(seq); ack = ntohl(ack); len = ntohs((u_short)len); } if (act == TA_OUTPUT) len -= sizeof (struct tcphdr); if (len) printf("[%x..%x)", seq, seq+len); else printf("%x", seq); printf("@%x, urp=%x", ack, ti->ti_urp); flags = ti->ti_flags; if (flags) { char *cp = "<"; #define pf(f) { \ if (ti->ti_flags & TH_##f) { \ printf("%s%s", cp, #f); \ cp = ","; \ } \ } pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG); printf(">"); } break; case TA_USER: printf("%s", prurequests[req&0xff]); if ((req & 0xff) == PRU_SLOWTIMO) printf("<%s>", tcptimers[req>>8]); break; } if (tp) printf(" -> %s", tcpstates[tp->t_state]); /* print out internal state of tp !?! */ printf("\n"); if (tp == 0) return; printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n", tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt, tp->snd_max); printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n", tp->snd_wl1, tp->snd_wl2, tp->snd_wnd); #endif /* TCPDEBUG */ }