4be4929c2b
DANGER WILL ROBINSON! _PATH_UNIX is currently defined as the literal string "don't use this". I am of two minds about this myself, but wanted to get something into the tree as quickly as possible.
434 lines
9.9 KiB
C
434 lines
9.9 KiB
C
/*
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* Copyright (c) 1985, 1993
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* The Regents of the University of California. 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 copyright[] =
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"@(#) Copyright (c) 1985, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)trsp.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#include <sys/cdefs.h>
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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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#define PRUREQUESTS
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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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#define TCPSTATES
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#include <netinet/tcp_fsm.h>
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#define TCPTIMERS
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#include <netinet/tcp_timer.h>
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#include <netns/ns.h>
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#include <netns/sp.h>
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#include <netns/idp.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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#include <netns/ns_pcb.h>
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#include <netns/idp_var.h>
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#define SANAMES
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#include <netns/spp_debug.h>
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#include <stdio.h>
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#include <errno.h>
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#include <nlist.h>
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#include <paths.h>
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unsigned long ntime;
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int sflag;
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int tflag;
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int jflag;
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int aflag;
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int zflag;
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int numeric();
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struct nlist nl[] = {
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{ "_spp_debug" },
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{ "_spp_debx" },
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0
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};
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struct spp_debug spp_debug[SPP_NDEBUG];
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caddr_t spp_pcbs[SPP_NDEBUG];
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int spp_debx;
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main(argc, argv)
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int argc;
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char **argv;
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{
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int i, mask = 0, npcbs = 0;
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char *system, *core;
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system = (char *)getbootfile();
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core = _PATH_KMEM;
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argc--, argv++;
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again:
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if (argc > 0 && !strcmp(*argv, "-a")) {
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aflag++, argc--, argv++;
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goto again;
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}
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if (argc > 0 && !strcmp(*argv, "-z")) {
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zflag++, argc--, argv++;
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goto again;
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}
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if (argc > 0 && !strcmp(*argv, "-s")) {
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sflag++, argc--, argv++;
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goto again;
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}
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if (argc > 0 && !strcmp(*argv, "-t")) {
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tflag++, argc--, argv++;
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goto again;
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}
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if (argc > 0 && !strcmp(*argv, "-j")) {
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jflag++, argc--, argv++;
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goto again;
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}
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if (argc > 0 && !strcmp(*argv, "-p")) {
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argc--, argv++;
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if (argc < 1) {
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fprintf(stderr, "-p: missing sppcb address\n");
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exit(1);
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}
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if (npcbs >= SPP_NDEBUG) {
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fprintf(stderr, "-p: too many pcb's specified\n");
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exit(1);
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}
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sscanf(*argv, "%x", &spp_pcbs[npcbs++]);
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argc--, argv++;
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goto again;
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}
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if (argc > 0) {
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system = *argv;
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argc--, argv++;
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mask++;
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/*
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* Discard setgid privileges if not the running kernel so that
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* bad guys can't print interesting stuff from kernel memory.
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*/
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setgid(getgid());
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}
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if (argc > 0) {
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core = *argv;
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argc--, argv++;
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mask++;
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setgid(getgid());
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}
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(void) nlist(system, nl);
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if (nl[0].n_value == 0) {
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fprintf(stderr, "trsp: %s: no namelist\n", system);
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exit(1);
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}
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(void) close(0);
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if (open(core, 0) < 0) {
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fprintf(stderr, "trsp: "); perror(core);
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exit(2);
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}
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if (mask) {
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nl[0].n_value &= 0x7fffffff;
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nl[1].n_value &= 0x7fffffff;
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}
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(void) lseek(0, nl[1].n_value, 0);
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if (read(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
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fprintf(stderr, "trsp: "); perror("spp_debx");
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exit(3);
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}
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printf("spp_debx=%d\n", spp_debx);
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(void) lseek(0, nl[0].n_value, 0);
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if (read(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
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fprintf(stderr, "trsp: "); perror("spp_debug");
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exit(3);
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}
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/*
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* Here, we just want to clear out the old trace data and start over.
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*/
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if (zflag) {
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char *cp = (char *) spp_debug,
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*cplim = cp + sizeof(spp_debug);
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(void) close(0);
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if (open(core, 2) < 0) {
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fprintf(stderr, "trsp: "); perror(core);
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exit(2);
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}
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while(cp < cplim) *cp++ = 0;
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(void) lseek(0, nl[0].n_value, 0);
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if (write(0, spp_debug, sizeof (spp_debug)) != sizeof (spp_debug)) {
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fprintf(stderr, "trsp: "); perror("spp_debug");
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exit(3);
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}
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(void) lseek(0, nl[1].n_value, 0);
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spp_debx = 0;
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if (write(0, &spp_debx, sizeof (spp_debx)) != sizeof (spp_debx)) {
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fprintf(stderr, "trsp: "); perror("spp_debx");
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exit(3);
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}
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exit(0);
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}
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/*
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* If no control blocks have been specified, figure
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* out how many distinct one we have and summarize
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* them in spp_pcbs for sorting the trace records
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* below.
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*/
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if (npcbs == 0) {
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for (i = 0; i < SPP_NDEBUG; i++) {
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register int j;
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register struct spp_debug *sd = &spp_debug[i];
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if (sd->sd_cb == 0)
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continue;
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for (j = 0; j < npcbs; j++)
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if (spp_pcbs[j] == sd->sd_cb)
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break;
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if (j >= npcbs)
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spp_pcbs[npcbs++] = sd->sd_cb;
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}
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}
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qsort(spp_pcbs, npcbs, sizeof (caddr_t), numeric);
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if (jflag) {
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char *cp = "";
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for (i = 0; i < npcbs; i++) {
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printf("%s%x", cp, spp_pcbs[i]);
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cp = ", ";
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}
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if (*cp)
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putchar('\n');
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exit(0);
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}
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for (i = 0; i < npcbs; i++) {
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printf("\n%x:\n", spp_pcbs[i]);
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dotrace(spp_pcbs[i]);
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}
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exit(0);
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}
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dotrace(sppcb)
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register caddr_t sppcb;
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{
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register int i;
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register struct spp_debug *sd;
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for (i = spp_debx % SPP_NDEBUG; i < SPP_NDEBUG; i++) {
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sd = &spp_debug[i];
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if (sppcb && sd->sd_cb != sppcb)
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continue;
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ntime = ntohl(sd->sd_time);
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spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
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&sd->sd_si, sd->sd_req);
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}
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for (i = 0; i < spp_debx % SPP_NDEBUG; i++) {
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sd = &spp_debug[i];
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if (sppcb && sd->sd_cb != sppcb)
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continue;
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ntime = ntohl(sd->sd_time);
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spp_trace(sd->sd_act, sd->sd_ostate, sd->sd_cb, &sd->sd_sp,
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&sd->sd_si, sd->sd_req);
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}
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}
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ptime(ms)
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int ms;
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{
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printf("%03d ", (ms/10) % 1000);
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}
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numeric(c1, c2)
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caddr_t *c1, *c2;
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{
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return (*c1 - *c2);
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}
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spp_trace(act, ostate, asp, sp, si, req)
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short act, ostate;
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struct sppcb *asp, *sp;
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struct spidp *si;
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int req;
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{
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u_short seq, ack, len, alo;
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int flags, timer;
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char *cp;
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if(ostate >= TCP_NSTATES) ostate = 0;
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if(act > SA_DROP) act = SA_DROP;
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printf("\n");
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ptime(ntime);
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printf("%s:%s", tcpstates[ostate], sanames[act]);
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if (si != 0) {
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seq = si->si_seq;
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ack = si->si_ack;
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alo = si->si_alo;
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len = si->si_len;
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switch (act) {
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case SA_RESPOND:
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case SA_OUTPUT:
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seq = ntohs(seq);
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ack = ntohs(ack);
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alo = ntohs(alo);
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len = ntohs(len);
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case SA_INPUT:
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case SA_DROP:
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if (aflag) {
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printf("\n\tsna=");
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ns_printhost(&si->si_sna);
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printf("\tdna=");
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ns_printhost(&si->si_dna);
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}
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printf("\n\t");
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#define p1(name, f) { \
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printf("%s = %x, ", name, f); \
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}
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p1("seq", seq);
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p1("ack", ack);
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p1("alo", alo);
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p1("len", len);
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flags = si->si_cc;
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printf("flags=%x", flags);
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#define pf(name, f) { \
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if (flags & f) { \
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printf("%s%s", cp, name); \
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cp = ","; \
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} \
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}
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if (flags) {
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char *cp = "<";
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pf("SP_SP", SP_SP);
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pf("SP_SA", SP_SA);
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pf("SP_OB", SP_OB);
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pf("SP_EM", SP_EM);
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printf(">");
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}
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printf(", ");
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#define p2(name, f) { \
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printf("%s = %x, ", name, f); \
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}
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p2("sid", si->si_sid);
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p2("did", si->si_did);
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p2("dt", si->si_dt);
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printf("\n\tsna=");
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ns_printhost(&si->si_sna);
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printf("\tdna=");
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ns_printhost(&si->si_dna);
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}
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}
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if(act == SA_USER) {
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printf("\treq=%s", prurequests[req&0xff]);
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if ((req & 0xff) == PRU_SLOWTIMO)
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printf("<%s>", tcptimers[req>>8]);
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}
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printf(" -> %s", tcpstates[sp->s_state]);
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/* print out internal state of sp !?! */
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printf("\n");
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if (sp == 0)
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return;
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#define p3(name, f) { \
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printf("%s = %x, ", name, f); \
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}
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if (sflag) {
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printf("\t");
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p3("rack", sp->s_rack);
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p3("ralo", sp->s_ralo);
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p3("smax", sp->s_smax);
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p3("snxt", sp->s_snxt);
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p3("flags", sp->s_flags);
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#undef pf
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#define pf(name, f) { \
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if (flags & f) { \
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printf("%s%s", cp, name); \
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cp = ","; \
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} \
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}
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flags = sp->s_flags;
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if (flags || sp->s_oobflags) {
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char *cp = "<";
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pf("ACKNOW", SF_ACKNOW);
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pf("DELACK", SF_DELACK);
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pf("HI", SF_HI);
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pf("HO", SF_HO);
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pf("PI", SF_PI);
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pf("WIN", SF_WIN);
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pf("RXT", SF_RXT);
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pf("RVD", SF_RVD);
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flags = sp->s_oobflags;
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pf("SOOB", SF_SOOB);
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pf("IOOB", SF_IOOB);
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printf(">");
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}
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}
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/* print out timers? */
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if (tflag) {
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char *cp = "\t";
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register int i;
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printf("\n\tTIMERS: ");
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p3("idle", sp->s_idle);
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p3("force", sp->s_force);
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p3("rtseq", sp->s_rtseq);
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for (i = 0; i < TCPT_NTIMERS; i++) {
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if (sp->s_timer[i] == 0)
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continue;
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printf("%s%s=%d", cp, tcptimers[i], sp->s_timer[i]);
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if (i == TCPT_REXMT)
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printf(" (s_rxtshft=%d)", sp->s_rxtshift);
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cp = ", ";
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}
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if (*cp != '\t')
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putchar('\n');
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}
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}
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ns_printhost(p)
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register struct ns_addr *p;
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{
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printf("<net:%x%x,host:%4.4x%4.4x%4.4x,port:%x>",
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p->x_net.s_net[0],
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p->x_net.s_net[1],
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p->x_host.s_host[0],
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p->x_host.s_host[1],
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p->x_host.s_host[2],
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p->x_port);
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}
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