348 lines
11 KiB
C
348 lines
11 KiB
C
/*
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* Copyright (c) 1985, 1988 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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/*static char sccsid[] = "from: @(#)ns.c 5.13 (Berkeley) 3/1/91";*/
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static char rcsid[] = "$Id: ns.c,v 1.4 1993/08/01 18:10:49 mycroft Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <net/route.h>
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#include <net/if.h>
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#include <netinet/tcp_fsm.h>
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#include <netns/ns.h>
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#include <netns/ns_pcb.h>
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#include <netns/idp.h>
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#include <netns/idp_var.h>
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#include <netns/ns_error.h>
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#include <netns/sp.h>
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#include <netns/spidp.h>
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#include <netns/spp_timer.h>
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#include <netns/spp_var.h>
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#define SANAMES
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#include <netns/spp_debug.h>
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#include <nlist.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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struct nspcb nspcb;
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struct sppcb sppcb;
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struct socket sockb;
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extern int Aflag;
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extern int aflag;
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extern int nflag;
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extern char *plural();
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char *ns_prpr();
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static int first = 1;
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/*
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* Print a summary of connections related to a Network Systems
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* protocol. For SPP, also give state of connection.
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* Listening processes (aflag) are suppressed unless the
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* -a (all) flag is specified.
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*/
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nsprotopr(off, name)
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off_t off;
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char *name;
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{
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struct nspcb cb;
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register struct nspcb *prev, *next;
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int isspp;
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if (off == 0)
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return;
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isspp = strcmp(name, "spp") == 0;
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kvm_read(off, (char *)&cb, sizeof (struct nspcb));
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nspcb = cb;
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prev = (struct nspcb *)off;
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if (nspcb.nsp_next == (struct nspcb *)off)
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return;
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for (;nspcb.nsp_next != (struct nspcb *)off; prev = next) {
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off_t ppcb;
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next = nspcb.nsp_next;
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kvm_read((off_t)next, (char *)&nspcb, sizeof (nspcb));
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if (nspcb.nsp_prev != prev) {
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printf("???\n");
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break;
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}
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if (!aflag && ns_nullhost(nspcb.nsp_faddr) ) {
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continue;
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}
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kvm_read((off_t)nspcb.nsp_socket,
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(char *)&sockb, sizeof (sockb));
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ppcb = (off_t) nspcb.nsp_pcb;
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if (ppcb) {
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if (isspp) {
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kvm_read(ppcb, (char *)&sppcb, sizeof (sppcb));
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} else continue;
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} else
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if (isspp) continue;
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if (first) {
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printf("Active NS connections");
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if (aflag)
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printf(" (including servers)");
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putchar('\n');
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if (Aflag)
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printf("%-8.8s ", "PCB");
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printf(Aflag ?
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"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
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"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
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"Proto", "Recv-Q", "Send-Q",
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"Local Address", "Foreign Address", "(state)");
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first = 0;
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}
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if (Aflag)
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printf("%8x ", ppcb);
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printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
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sockb.so_snd.sb_cc);
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printf(" %-22.22s", ns_prpr(&nspcb.nsp_laddr));
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printf(" %-22.22s", ns_prpr(&nspcb.nsp_faddr));
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if (isspp) {
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extern char *tcpstates[];
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if (sppcb.s_state >= TCP_NSTATES)
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printf(" %d", sppcb.s_state);
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else
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printf(" %s", tcpstates[sppcb.s_state]);
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}
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putchar('\n');
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prev = next;
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}
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}
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#define ANY(x,y,z) \
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((x) ? printf("\t%d %s%s%s -- %s\n",x,y,plural(x),z,"x") : 0)
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/*
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* Dump SPP statistics structure.
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*/
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spp_stats(off, name)
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off_t off;
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char *name;
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{
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struct spp_istat spp_istat;
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#define sppstat spp_istat.newstats
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if (off == 0)
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return;
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kvm_read(off, (char *)&spp_istat, sizeof (spp_istat));
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printf("%s:\n", name);
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ANY(spp_istat.nonucn, "connection", " dropped due to no new sockets ");
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ANY(spp_istat.gonawy, "connection", " terminated due to our end dying");
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ANY(spp_istat.nonucn, "connection",
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" dropped due to inability to connect");
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ANY(spp_istat.noconn, "connection",
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" dropped due to inability to connect");
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ANY(spp_istat.notme, "connection",
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" incompleted due to mismatched id's");
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ANY(spp_istat.wrncon, "connection", " dropped due to mismatched id's");
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ANY(spp_istat.bdreas, "packet", " dropped out of sequence");
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ANY(spp_istat.lstdup, "packet", " duplicating the highest packet");
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ANY(spp_istat.notyet, "packet", " refused as exceeding allocation");
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ANY(sppstat.spps_connattempt, "connection", " initiated");
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ANY(sppstat.spps_accepts, "connection", " accepted");
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ANY(sppstat.spps_connects, "connection", " established");
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ANY(sppstat.spps_drops, "connection", " dropped");
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ANY(sppstat.spps_conndrops, "embryonic connection", " dropped");
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ANY(sppstat.spps_closed, "connection", " closed (includes drops)");
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ANY(sppstat.spps_segstimed, "packet", " where we tried to get rtt");
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ANY(sppstat.spps_rttupdated, "time", " we got rtt");
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ANY(sppstat.spps_delack, "delayed ack", " sent");
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ANY(sppstat.spps_timeoutdrop, "connection", " dropped in rxmt timeout");
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ANY(sppstat.spps_rexmttimeo, "retransmit timeout", "");
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ANY(sppstat.spps_persisttimeo, "persist timeout", "");
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ANY(sppstat.spps_keeptimeo, "keepalive timeout", "");
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ANY(sppstat.spps_keepprobe, "keepalive probe", " sent");
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ANY(sppstat.spps_keepdrops, "connection", " dropped in keepalive");
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ANY(sppstat.spps_sndtotal, "total packet", " sent");
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ANY(sppstat.spps_sndpack, "data packet", " sent");
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ANY(sppstat.spps_sndbyte, "data byte", " sent");
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ANY(sppstat.spps_sndrexmitpack, "data packet", " retransmitted");
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ANY(sppstat.spps_sndrexmitbyte, "data byte", " retransmitted");
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ANY(sppstat.spps_sndacks, "ack-only packet", " sent");
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ANY(sppstat.spps_sndprobe, "window probe", " sent");
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ANY(sppstat.spps_sndurg, "packet", " sent with URG only");
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ANY(sppstat.spps_sndwinup, "window update-only packet", " sent");
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ANY(sppstat.spps_sndctrl, "control (SYN|FIN|RST) packet", " sent");
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ANY(sppstat.spps_sndvoid, "request", " to send a non-existant packet");
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ANY(sppstat.spps_rcvtotal, "total packet", " received");
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ANY(sppstat.spps_rcvpack, "packet", " received in sequence");
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ANY(sppstat.spps_rcvbyte, "byte", " received in sequence");
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ANY(sppstat.spps_rcvbadsum, "packet", " received with ccksum errs");
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ANY(sppstat.spps_rcvbadoff, "packet", " received with bad offset");
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ANY(sppstat.spps_rcvshort, "packet", " received too short");
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ANY(sppstat.spps_rcvduppack, "duplicate-only packet", " received");
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ANY(sppstat.spps_rcvdupbyte, "duplicate-only byte", " received");
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ANY(sppstat.spps_rcvpartduppack, "packet", " with some duplicate data");
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ANY(sppstat.spps_rcvpartdupbyte, "dup. byte", " in part-dup. packet");
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ANY(sppstat.spps_rcvoopack, "out-of-order packet", " received");
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ANY(sppstat.spps_rcvoobyte, "out-of-order byte", " received");
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ANY(sppstat.spps_rcvpackafterwin, "packet", " with data after window");
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ANY(sppstat.spps_rcvbyteafterwin, "byte", " rcvd after window");
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ANY(sppstat.spps_rcvafterclose, "packet", " rcvd after 'close'");
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ANY(sppstat.spps_rcvwinprobe, "rcvd window probe packet", "");
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ANY(sppstat.spps_rcvdupack, "rcvd duplicate ack", "");
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ANY(sppstat.spps_rcvacktoomuch, "rcvd ack", " for unsent data");
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ANY(sppstat.spps_rcvackpack, "rcvd ack packet", "");
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ANY(sppstat.spps_rcvackbyte, "byte", " acked by rcvd acks");
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ANY(sppstat.spps_rcvwinupd, "rcvd window update packet", "");
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}
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#undef ANY
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#define ANY(x,y,z) ((x) ? printf("\t%d %s%s%s\n",x,y,plural(x),z) : 0)
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/*
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* Dump IDP statistics structure.
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*/
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idp_stats(off, name)
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off_t off;
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char *name;
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{
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struct idpstat idpstat;
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if (off == 0)
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return;
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kvm_read(off, (char *)&idpstat, sizeof (idpstat));
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printf("%s:\n", name);
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ANY(idpstat.idps_toosmall, "packet", " smaller than a header");
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ANY(idpstat.idps_tooshort, "packet", " smaller than advertised");
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ANY(idpstat.idps_badsum, "packet", " with bad checksums");
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}
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static struct {
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u_short code;
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char *name;
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char *where;
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} ns_errnames[] = {
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{0, "Unspecified Error", " at Destination"},
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{1, "Bad Checksum", " at Destination"},
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{2, "No Listener", " at Socket"},
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{3, "Packet", " Refused due to lack of space at Destination"},
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{01000, "Unspecified Error", " while gatewayed"},
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{01001, "Bad Checksum", " while gatewayed"},
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{01002, "Packet", " forwarded too many times"},
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{01003, "Packet", " too large to be forwarded"},
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{-1, 0, 0},
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};
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/*
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* Dump NS Error statistics structure.
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*/
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/*ARGSUSED*/
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nserr_stats(off, name)
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off_t off;
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char *name;
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{
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struct ns_errstat ns_errstat;
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register int j;
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register int histoprint = 1;
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int z;
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if (off == 0)
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return;
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kvm_read(off, (char *)&ns_errstat, sizeof (ns_errstat));
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printf("NS error statistics:\n");
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ANY(ns_errstat.ns_es_error, "call", " to ns_error");
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ANY(ns_errstat.ns_es_oldshort, "error",
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" ignored due to insufficient addressing");
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ANY(ns_errstat.ns_es_oldns_err, "error request",
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" in response to error packets");
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ANY(ns_errstat.ns_es_tooshort, "error packet",
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" received incomplete");
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ANY(ns_errstat.ns_es_badcode, "error packet",
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" received of unknown type");
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for(j = 0; j < NS_ERR_MAX; j ++) {
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z = ns_errstat.ns_es_outhist[j];
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if (z && histoprint) {
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printf("Output Error Histogram:\n");
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histoprint = 0;
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}
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ns_erputil(z, ns_errstat.ns_es_codes[j]);
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}
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histoprint = 1;
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for(j = 0; j < NS_ERR_MAX; j ++) {
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z = ns_errstat.ns_es_inhist[j];
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if (z && histoprint) {
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printf("Input Error Histogram:\n");
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histoprint = 0;
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}
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ns_erputil(z, ns_errstat.ns_es_codes[j]);
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}
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}
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ns_erputil(z, c)
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{
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int j;
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char codebuf[30];
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char *name, *where;
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for(j = 0;; j ++) {
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if ((name = ns_errnames[j].name) == 0)
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break;
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if (ns_errnames[j].code == c)
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break;
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}
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if (name == 0) {
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if (c > 01000)
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where = "in transit";
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else
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where = "at destination";
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sprintf(codebuf, "Unknown XNS error code 0%o", c);
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name = codebuf;
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} else
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where = ns_errnames[j].where;
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ANY(z, name, where);
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}
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static struct sockaddr_ns ssns = {AF_NS};
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char *ns_prpr(x)
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struct ns_addr *x;
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{
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struct sockaddr_ns *sns = &ssns;
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extern char *ns_print();
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sns->sns_addr = *x;
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return(ns_print(sns));
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}
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