521 lines
12 KiB
C
521 lines
12 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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* Copyright (c) 1995 John Hay. All rights reserved.
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*
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* This file includes significant work done at Cornell University by
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* Bill Nesheim. That work included by permission.
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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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#if 0
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static char sccsid[] = "@(#)trace.c 8.1 (Berkeley) 6/5/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/*
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* Routing Table Management Daemon
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*/
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#define RIPCMDS
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#define SAPCMDS
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <time.h>
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#include "defs.h"
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#define NRECORDS 50 /* size of circular trace buffer */
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#ifdef DEBUG
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FILE *ftrace = stdout;
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int tracing = 1;
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#else /* DEBUG */
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FILE *ftrace = NULL;
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int tracing = 0;
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#endif
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void dumpif(FILE *fd, struct interface *ifp);
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void dumptrace(FILE *fd, char *dir, struct ifdebug *ifd);
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static int iftraceinit(struct interface *ifp, struct ifdebug *ifd);
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void
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traceinit(ifp)
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register struct interface *ifp;
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{
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if (iftraceinit(ifp, &ifp->int_input) &&
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iftraceinit(ifp, &ifp->int_output))
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return;
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tracing = 0;
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syslog(LOG_ERR, "traceinit: can't init %s\n", ifp->int_name);
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}
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static int
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iftraceinit(ifp, ifd)
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struct interface *ifp;
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register struct ifdebug *ifd;
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{
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register struct iftrace *t;
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ifd->ifd_records =
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(struct iftrace *)malloc(NRECORDS * sizeof (struct iftrace));
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if (ifd->ifd_records == 0)
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return (0);
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ifd->ifd_front = ifd->ifd_records;
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ifd->ifd_count = 0;
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for (t = ifd->ifd_records; t < ifd->ifd_records + NRECORDS; t++) {
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t->ift_size = 0;
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t->ift_packet = 0;
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}
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ifd->ifd_if = ifp;
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return (1);
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}
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void
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traceon(file)
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char *file;
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{
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if (ftrace != NULL)
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return;
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ftrace = fopen(file, "a");
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if (ftrace == NULL)
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return;
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dup2(fileno(ftrace), 1);
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dup2(fileno(ftrace), 2);
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tracing = 1;
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}
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void
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traceoff(void)
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{
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if (!tracing)
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return;
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if (ftrace != NULL)
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fclose(ftrace);
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ftrace = NULL;
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tracing = 0;
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}
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void
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trace(ifd, who, p, len, m)
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register struct ifdebug *ifd;
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struct sockaddr *who;
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char *p;
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int len, m;
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{
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register struct iftrace *t;
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if (ifd->ifd_records == 0)
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return;
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t = ifd->ifd_front++;
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if (ifd->ifd_front >= ifd->ifd_records + NRECORDS)
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ifd->ifd_front = ifd->ifd_records;
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if (ifd->ifd_count < NRECORDS)
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ifd->ifd_count++;
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if (t->ift_size > 0 && t->ift_packet)
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free(t->ift_packet);
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t->ift_packet = 0;
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t->ift_stamp = time(0);
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t->ift_who = *who;
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if (len > 0) {
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t->ift_packet = malloc(len);
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if (t->ift_packet)
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bcopy(p, t->ift_packet, len);
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else
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len = 0;
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}
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t->ift_size = len;
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t->ift_metric = m;
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}
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void
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traceaction(fd, action, rt)
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FILE *fd;
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char *action;
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struct rt_entry *rt;
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{
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struct sockaddr_ipx *dst, *gate;
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static struct bits {
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int t_bits;
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char *t_name;
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} flagbits[] = {
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{ RTF_UP, "UP" },
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{ RTF_GATEWAY, "GATEWAY" },
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{ RTF_HOST, "HOST" },
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{ 0 }
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}, statebits[] = {
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{ RTS_PASSIVE, "PASSIVE" },
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{ RTS_REMOTE, "REMOTE" },
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{ RTS_INTERFACE,"INTERFACE" },
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{ RTS_CHANGED, "CHANGED" },
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{ 0 }
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};
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register struct bits *p;
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register int first;
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char *cp;
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if (fd == NULL)
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return;
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fprintf(fd, "%s ", action);
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dst = (struct sockaddr_ipx *)&rt->rt_dst;
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gate = (struct sockaddr_ipx *)&rt->rt_router;
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fprintf(fd, "dst %s, ", ipxdp_ntoa(&dst->sipx_addr));
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fprintf(fd, "router %s, metric %d, ticks %d, flags",
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ipxdp_ntoa(&gate->sipx_addr), rt->rt_metric, rt->rt_ticks);
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cp = " %s";
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for (first = 1, p = flagbits; p->t_bits > 0; p++) {
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if ((rt->rt_flags & p->t_bits) == 0)
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continue;
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fprintf(fd, cp, p->t_name);
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if (first) {
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cp = "|%s";
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first = 0;
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}
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}
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fprintf(fd, " state");
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cp = " %s";
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for (first = 1, p = statebits; p->t_bits > 0; p++) {
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if ((rt->rt_state & p->t_bits) == 0)
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continue;
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fprintf(fd, cp, p->t_name);
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if (first) {
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cp = "|%s";
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first = 0;
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}
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}
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putc('\n', fd);
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if (!tracepackets && (rt->rt_state & RTS_PASSIVE) == 0 && rt->rt_ifp)
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dumpif(fd, rt->rt_ifp);
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fflush(fd);
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}
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void
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traceactionlog(action, rt)
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char *action;
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struct rt_entry *rt;
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{
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struct sockaddr_ipx *dst, *gate;
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static struct bits {
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int t_bits;
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char *t_name;
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} flagbits[] = {
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{ RTF_UP, "UP" },
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{ RTF_GATEWAY, "GATEWAY" },
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{ RTF_HOST, "HOST" },
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{ 0 }
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}, statebits[] = {
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{ RTS_PASSIVE, "PASSIVE" },
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{ RTS_REMOTE, "REMOTE" },
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{ RTS_INTERFACE,"INTERFACE" },
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{ RTS_CHANGED, "CHANGED" },
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{ 0 }
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};
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register struct bits *p;
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register int first;
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char *cp;
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char *lstr, *olstr;
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dst = (struct sockaddr_ipx *)&rt->rt_dst;
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gate = (struct sockaddr_ipx *)&rt->rt_router;
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asprintf(&lstr, "%s dst %s,", action, ipxdp_ntoa(&dst->sipx_addr));
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olstr = lstr;
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asprintf(&lstr, "%s router %s, metric %d, ticks %d, flags",
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olstr, ipxdp_ntoa(&gate->sipx_addr), rt->rt_metric, rt->rt_ticks);
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free(olstr);
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olstr = lstr;
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cp = "%s %s";
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for (first = 1, p = flagbits; p->t_bits > 0; p++) {
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if ((rt->rt_flags & p->t_bits) == 0)
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continue;
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asprintf(&lstr, cp, olstr, p->t_name);
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free(olstr);
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olstr = lstr;
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if (first) {
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cp = "%s|%s";
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first = 0;
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}
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}
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asprintf(&lstr, "%s state", olstr);
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free(olstr);
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olstr = lstr;
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cp = "%s %s";
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for (first = 1, p = statebits; p->t_bits > 0; p++) {
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if ((rt->rt_state & p->t_bits) == 0)
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continue;
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asprintf(&lstr, cp, olstr, p->t_name);
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free(olstr);
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olstr = lstr;
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if (first) {
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cp = "%s|%s";
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first = 0;
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}
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}
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syslog(LOG_DEBUG, "%s", lstr);
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free(lstr);
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}
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void
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tracesapactionlog(action, sap)
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char *action;
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struct sap_entry *sap;
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{
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syslog(LOG_DEBUG, "%-12.12s service %04X %-20.20s "
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"addr %s.%04X %c metric %d\n",
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action,
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ntohs(sap->sap.ServType),
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sap->sap.ServName,
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ipxdp_ntoa(&sap->sap.ipx),
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ntohs(sap->sap.ipx.x_port),
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(sap->clone ? 'C' : ' '),
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ntohs(sap->sap.hops));
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}
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void
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dumpif(fd, ifp)
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register struct interface *ifp;
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FILE *fd;
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{
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if (ifp->int_input.ifd_count || ifp->int_output.ifd_count) {
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fprintf(fd, "*** Packet history for interface %s ***\n",
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ifp->int_name);
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dumptrace(fd, "to", &ifp->int_output);
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dumptrace(fd, "from", &ifp->int_input);
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fprintf(fd, "*** end packet history ***\n");
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}
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}
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void
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dumptrace(fd, dir, ifd)
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FILE *fd;
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char *dir;
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register struct ifdebug *ifd;
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{
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register struct iftrace *t;
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char *cp = !strcmp(dir, "to") ? "Output" : "Input";
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if (ifd->ifd_front == ifd->ifd_records &&
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ifd->ifd_front->ift_size == 0) {
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fprintf(fd, "%s: no packets.\n", cp);
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return;
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}
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fprintf(fd, "%s trace:\n", cp);
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t = ifd->ifd_front - ifd->ifd_count;
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if (t < ifd->ifd_records)
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t += NRECORDS;
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for ( ; ifd->ifd_count; ifd->ifd_count--, t++) {
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if (t >= ifd->ifd_records + NRECORDS)
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t = ifd->ifd_records;
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if (t->ift_size == 0)
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continue;
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fprintf(fd, "%.24s: metric=%d\n", ctime(&t->ift_stamp),
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t->ift_metric);
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dumppacket(fd, dir, &t->ift_who, t->ift_packet, t->ift_size);
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}
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}
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void
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dumppacket(fd, dir, source, cp, size)
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FILE *fd;
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char *dir;
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struct sockaddr *source;
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char *cp;
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register int size;
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{
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register struct rip *msg = (struct rip *)cp;
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register struct netinfo *n;
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struct sockaddr_ipx *who = (struct sockaddr_ipx *)source;
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if (msg->rip_cmd && ntohs(msg->rip_cmd) < RIPCMD_MAX)
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fprintf(fd, "%s %s %s#%x", ripcmds[ntohs(msg->rip_cmd)],
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dir, ipxdp_ntoa(&who->sipx_addr),
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ntohs(who->sipx_addr.x_port));
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else {
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fprintf(fd, "Bad cmd 0x%x %s %s#%x\n", ntohs(msg->rip_cmd),
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dir, ipxdp_ntoa(&who->sipx_addr),
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ntohs(who->sipx_addr.x_port));
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fprintf(fd, "size=%d cp=%p packet=%p\n", size,
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cp, packet);
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return;
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}
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switch (ntohs(msg->rip_cmd)) {
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case RIPCMD_REQUEST:
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case RIPCMD_RESPONSE:
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fprintf(fd, ":\n");
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size -= sizeof (u_short);
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n = msg->rip_nets;
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for (; size > 0; n++, size -= sizeof (struct netinfo)) {
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if (size < sizeof (struct netinfo))
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break;
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fprintf(fd, "\tnet %s metric %d ticks %d\n",
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ipxdp_nettoa(n->rip_dst),
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ntohs(n->rip_metric),
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ntohs(n->rip_ticks));
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}
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break;
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}
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}
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void
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dumpsappacket(fd, dir, source, cp, size)
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FILE *fd;
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char *dir;
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struct sockaddr *source;
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char *cp;
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register int size;
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{
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register struct sap_packet *msg = (struct sap_packet *)cp;
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register struct sap_info *n;
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struct sockaddr_ipx *who = (struct sockaddr_ipx *)source;
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if (msg->sap_cmd && ntohs(msg->sap_cmd) < SAPCMD_MAX)
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fprintf(fd, "%s %s %s#%x", sapcmds[ntohs(msg->sap_cmd)],
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dir, ipxdp_ntoa(&who->sipx_addr),
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ntohs(who->sipx_addr.x_port));
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else {
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fprintf(fd, "Bad cmd 0x%x %s %s#%x\n", ntohs(msg->sap_cmd),
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dir, ipxdp_ntoa(&who->sipx_addr),
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ntohs(who->sipx_addr.x_port));
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fprintf(fd, "size=%d cp=%p packet=%p\n", size,
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cp, packet);
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return;
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}
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switch (ntohs(msg->sap_cmd)) {
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case SAP_REQ:
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case SAP_RESP:
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case SAP_REQ_NEAR:
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case SAP_RESP_NEAR:
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fprintf(fd, ":\n");
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size -= sizeof (u_short);
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n = msg->sap;
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for (; size > 0; n++, size -= sizeof (struct sap_info)) {
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if (size < sizeof (struct sap_info))
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break;
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fprintf(fd, " service %04X %-20.20s "
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"addr %s.%04X metric %d\n",
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ntohs(n->ServType),
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n->ServName,
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ipxdp_ntoa(&n->ipx),
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ntohs(n->ipx.x_port),
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ntohs(n->hops));
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}
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break;
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}
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}
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void
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dumpsaptable(fd, sh)
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FILE *fd;
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struct sap_hash *sh;
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{
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register struct sap_entry *sap;
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struct sap_hash *hash;
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int x = 0;
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fprintf(fd, "------- SAP table dump. -------\n");
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for (hash = sh; hash < &sh[SAPHASHSIZ]; hash++, x++) {
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fprintf(fd, "HASH %d\n", x);
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sap = hash->forw;
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for (; sap != (struct sap_entry *)hash; sap = sap->forw) {
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fprintf(fd, " service %04X %-20.20s "
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"addr %s.%04X %c metric %d\n",
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ntohs(sap->sap.ServType),
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sap->sap.ServName,
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ipxdp_ntoa(&sap->sap.ipx),
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ntohs(sap->sap.ipx.x_port),
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(sap->clone ? 'C' : ' '),
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ntohs(sap->sap.hops));
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}
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}
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fprintf(fd, "\n");
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}
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void
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dumpriptable(fd)
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FILE *fd;
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{
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register struct rt_entry *rip;
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struct rthash *hash;
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int x;
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struct rthash *rh = nethash;
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fprintf(fd, "------- RIP table dump. -------\n");
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x = 0;
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fprintf(fd, "Network table.\n");
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for (hash = rh; hash < &rh[ROUTEHASHSIZ]; hash++, x++) {
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fprintf(fd, "HASH %d\n", x);
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rip = hash->rt_forw;
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for (; rip != (struct rt_entry *)hash; rip = rip->rt_forw) {
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fprintf(fd, " dest %s\t",
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ipxdp_ntoa(&satoipx_addr(rip->rt_dst)));
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fprintf(fd, "%s metric %d, ticks %d\n",
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ipxdp_ntoa(&satoipx_addr(rip->rt_router)),
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rip->rt_metric,
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rip->rt_ticks);
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}
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}
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fprintf(fd, "\n");
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}
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union ipx_net_u net;
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char *
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ipxdp_nettoa(val)
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union ipx_net val;
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{
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static char buf[100];
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net.net_e = val;
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(void)sprintf(buf, "%u", ntohl(net.long_e));
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return (buf);
|
|
}
|
|
|
|
|
|
char *
|
|
ipxdp_ntoa(addr)
|
|
struct ipx_addr *addr;
|
|
{
|
|
static char buf[100];
|
|
|
|
(void)sprintf(buf, "%s#%x:%x:%x:%x:%x:%x",
|
|
ipxdp_nettoa(addr->x_net),
|
|
addr->x_host.c_host[0], addr->x_host.c_host[1],
|
|
addr->x_host.c_host[2], addr->x_host.c_host[3],
|
|
addr->x_host.c_host[4], addr->x_host.c_host[5]);
|
|
|
|
return(buf);
|
|
}
|