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mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/usr.sbin/IPXrouted/trace.c
Tom Rhodes f7d7038aa4 Make this WARNS 2 clean, and fix up the manual page:
Avoid implicit function calls by adding the proper include files.
Use const char copyright.
Fix some fprint formatting.

In the manual page:

Use the .Pa macro for filenames and locations.
Kill hard setence breaks.
Make use of the .Tn and .Dq macros.
Add some to text to the otherwise blank HISTORY section (taken from CVS).
2003-11-15 17:10:56 +00:00

522 lines
12 KiB
C

/*
* Copyright (c) 1985, 1993
* The Regents of the University of California. All rights reserved.
*
* Copyright (c) 1995 John Hay. All rights reserved.
*
* This file includes significant work done at Cornell University by
* Bill Nesheim. That work included by permission.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)trace.c 8.1 (Berkeley) 6/5/93";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/*
* Routing Table Management Daemon
*/
#define RIPCMDS
#define SAPCMDS
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <time.h>
#include "defs.h"
#define NRECORDS 50 /* size of circular trace buffer */
#ifdef DEBUG
FILE *ftrace = stdout;
int tracing = 1;
#else /* DEBUG */
FILE *ftrace = NULL;
int tracing = 0;
#endif
void dumpif(FILE *fd, struct interface *ifp);
void dumptrace(FILE *fd, char *dir, struct ifdebug *ifd);
void
traceinit(ifp)
register struct interface *ifp;
{
static int iftraceinit();
if (iftraceinit(ifp, &ifp->int_input) &&
iftraceinit(ifp, &ifp->int_output))
return;
tracing = 0;
syslog(LOG_ERR, "traceinit: can't init %s\n", ifp->int_name);
}
static int
iftraceinit(ifp, ifd)
struct interface *ifp;
register struct ifdebug *ifd;
{
register struct iftrace *t;
ifd->ifd_records =
(struct iftrace *)malloc(NRECORDS * sizeof (struct iftrace));
if (ifd->ifd_records == 0)
return (0);
ifd->ifd_front = ifd->ifd_records;
ifd->ifd_count = 0;
for (t = ifd->ifd_records; t < ifd->ifd_records + NRECORDS; t++) {
t->ift_size = 0;
t->ift_packet = 0;
}
ifd->ifd_if = ifp;
return (1);
}
void
traceon(file)
char *file;
{
if (ftrace != NULL)
return;
ftrace = fopen(file, "a");
if (ftrace == NULL)
return;
dup2(fileno(ftrace), 1);
dup2(fileno(ftrace), 2);
tracing = 1;
}
void
traceoff(void)
{
if (!tracing)
return;
if (ftrace != NULL)
fclose(ftrace);
ftrace = NULL;
tracing = 0;
}
void
trace(ifd, who, p, len, m)
register struct ifdebug *ifd;
struct sockaddr *who;
char *p;
int len, m;
{
register struct iftrace *t;
if (ifd->ifd_records == 0)
return;
t = ifd->ifd_front++;
if (ifd->ifd_front >= ifd->ifd_records + NRECORDS)
ifd->ifd_front = ifd->ifd_records;
if (ifd->ifd_count < NRECORDS)
ifd->ifd_count++;
if (t->ift_size > 0 && t->ift_packet)
free(t->ift_packet);
t->ift_packet = 0;
t->ift_stamp = time(0);
t->ift_who = *who;
if (len > 0) {
t->ift_packet = malloc(len);
if (t->ift_packet)
bcopy(p, t->ift_packet, len);
else
len = 0;
}
t->ift_size = len;
t->ift_metric = m;
}
void
traceaction(fd, action, rt)
FILE *fd;
char *action;
struct rt_entry *rt;
{
struct sockaddr_ipx *dst, *gate;
static struct bits {
int t_bits;
char *t_name;
} flagbits[] = {
{ RTF_UP, "UP" },
{ RTF_GATEWAY, "GATEWAY" },
{ RTF_HOST, "HOST" },
{ 0 }
}, statebits[] = {
{ RTS_PASSIVE, "PASSIVE" },
{ RTS_REMOTE, "REMOTE" },
{ RTS_INTERFACE,"INTERFACE" },
{ RTS_CHANGED, "CHANGED" },
{ 0 }
};
register struct bits *p;
register int first;
char *cp;
if (fd == NULL)
return;
fprintf(fd, "%s ", action);
dst = (struct sockaddr_ipx *)&rt->rt_dst;
gate = (struct sockaddr_ipx *)&rt->rt_router;
fprintf(fd, "dst %s, ", ipxdp_ntoa(&dst->sipx_addr));
fprintf(fd, "router %s, metric %d, ticks %d, flags",
ipxdp_ntoa(&gate->sipx_addr), rt->rt_metric, rt->rt_ticks);
cp = " %s";
for (first = 1, p = flagbits; p->t_bits > 0; p++) {
if ((rt->rt_flags & p->t_bits) == 0)
continue;
fprintf(fd, cp, p->t_name);
if (first) {
cp = "|%s";
first = 0;
}
}
fprintf(fd, " state");
cp = " %s";
for (first = 1, p = statebits; p->t_bits > 0; p++) {
if ((rt->rt_state & p->t_bits) == 0)
continue;
fprintf(fd, cp, p->t_name);
if (first) {
cp = "|%s";
first = 0;
}
}
putc('\n', fd);
if (!tracepackets && (rt->rt_state & RTS_PASSIVE) == 0 && rt->rt_ifp)
dumpif(fd, rt->rt_ifp);
fflush(fd);
}
void
traceactionlog(action, rt)
char *action;
struct rt_entry *rt;
{
struct sockaddr_ipx *dst, *gate;
static struct bits {
int t_bits;
char *t_name;
} flagbits[] = {
{ RTF_UP, "UP" },
{ RTF_GATEWAY, "GATEWAY" },
{ RTF_HOST, "HOST" },
{ 0 }
}, statebits[] = {
{ RTS_PASSIVE, "PASSIVE" },
{ RTS_REMOTE, "REMOTE" },
{ RTS_INTERFACE,"INTERFACE" },
{ RTS_CHANGED, "CHANGED" },
{ 0 }
};
register struct bits *p;
register int first;
char *cp;
char *lstr, *olstr;
dst = (struct sockaddr_ipx *)&rt->rt_dst;
gate = (struct sockaddr_ipx *)&rt->rt_router;
asprintf(&lstr, "%s dst %s,", action, ipxdp_ntoa(&dst->sipx_addr));
olstr = lstr;
asprintf(&lstr, "%s router %s, metric %d, ticks %d, flags",
olstr, ipxdp_ntoa(&gate->sipx_addr), rt->rt_metric, rt->rt_ticks);
free(olstr);
olstr = lstr;
cp = "%s %s";
for (first = 1, p = flagbits; p->t_bits > 0; p++) {
if ((rt->rt_flags & p->t_bits) == 0)
continue;
asprintf(&lstr, cp, olstr, p->t_name);
free(olstr);
olstr = lstr;
if (first) {
cp = "%s|%s";
first = 0;
}
}
asprintf(&lstr, "%s state", olstr);
free(olstr);
olstr = lstr;
cp = "%s %s";
for (first = 1, p = statebits; p->t_bits > 0; p++) {
if ((rt->rt_state & p->t_bits) == 0)
continue;
asprintf(&lstr, cp, olstr, p->t_name);
free(olstr);
olstr = lstr;
if (first) {
cp = "%s|%s";
first = 0;
}
}
syslog(LOG_DEBUG, "%s", lstr);
free(lstr);
}
void
tracesapactionlog(action, sap)
char *action;
struct sap_entry *sap;
{
syslog(LOG_DEBUG, "%-12.12s service %04X %-20.20s "
"addr %s.%04X %c metric %d\n",
action,
ntohs(sap->sap.ServType),
sap->sap.ServName,
ipxdp_ntoa(&sap->sap.ipx),
ntohs(sap->sap.ipx.x_port),
(sap->clone ? 'C' : ' '),
ntohs(sap->sap.hops));
}
void
dumpif(fd, ifp)
register struct interface *ifp;
FILE *fd;
{
if (ifp->int_input.ifd_count || ifp->int_output.ifd_count) {
fprintf(fd, "*** Packet history for interface %s ***\n",
ifp->int_name);
dumptrace(fd, "to", &ifp->int_output);
dumptrace(fd, "from", &ifp->int_input);
fprintf(fd, "*** end packet history ***\n");
}
}
void
dumptrace(fd, dir, ifd)
FILE *fd;
char *dir;
register struct ifdebug *ifd;
{
register struct iftrace *t;
char *cp = !strcmp(dir, "to") ? "Output" : "Input";
if (ifd->ifd_front == ifd->ifd_records &&
ifd->ifd_front->ift_size == 0) {
fprintf(fd, "%s: no packets.\n", cp);
return;
}
fprintf(fd, "%s trace:\n", cp);
t = ifd->ifd_front - ifd->ifd_count;
if (t < ifd->ifd_records)
t += NRECORDS;
for ( ; ifd->ifd_count; ifd->ifd_count--, t++) {
if (t >= ifd->ifd_records + NRECORDS)
t = ifd->ifd_records;
if (t->ift_size == 0)
continue;
fprintf(fd, "%.24s: metric=%d\n", ctime(&t->ift_stamp),
t->ift_metric);
dumppacket(fd, dir, &t->ift_who, t->ift_packet, t->ift_size);
}
}
void
dumppacket(fd, dir, source, cp, size)
FILE *fd;
char *dir;
struct sockaddr *source;
char *cp;
register int size;
{
register struct rip *msg = (struct rip *)cp;
register struct netinfo *n;
struct sockaddr_ipx *who = (struct sockaddr_ipx *)source;
if (msg->rip_cmd && ntohs(msg->rip_cmd) < RIPCMD_MAX)
fprintf(fd, "%s %s %s#%x", ripcmds[ntohs(msg->rip_cmd)],
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
else {
fprintf(fd, "Bad cmd 0x%x %s %s#%x\n", ntohs(msg->rip_cmd),
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
fprintf(fd, "size=%d cp=%lx packet=%x\n", size,
(u_long)cp, (u_int)packet);
return;
}
switch (ntohs(msg->rip_cmd)) {
case RIPCMD_REQUEST:
case RIPCMD_RESPONSE:
fprintf(fd, ":\n");
size -= sizeof (u_short);
n = msg->rip_nets;
for (; size > 0; n++, size -= sizeof (struct netinfo)) {
if (size < sizeof (struct netinfo))
break;
fprintf(fd, "\tnet %s metric %d ticks %d\n",
ipxdp_nettoa(n->rip_dst),
ntohs(n->rip_metric),
ntohs(n->rip_ticks));
}
break;
}
}
void
dumpsappacket(fd, dir, source, cp, size)
FILE *fd;
char *dir;
struct sockaddr *source;
char *cp;
register int size;
{
register struct sap_packet *msg = (struct sap_packet *)cp;
register struct sap_info *n;
struct sockaddr_ipx *who = (struct sockaddr_ipx *)source;
if (msg->sap_cmd && ntohs(msg->sap_cmd) < SAPCMD_MAX)
fprintf(fd, "%s %s %s#%x", sapcmds[ntohs(msg->sap_cmd)],
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
else {
fprintf(fd, "Bad cmd 0x%x %s %s#%x\n", ntohs(msg->sap_cmd),
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
fprintf(fd, "size=%d cp=%lx packet=%x\n", size,
(u_long)cp, (u_int)packet);
return;
}
switch (ntohs(msg->sap_cmd)) {
case SAP_REQ:
case SAP_RESP:
case SAP_REQ_NEAR:
case SAP_RESP_NEAR:
fprintf(fd, ":\n");
size -= sizeof (u_short);
n = msg->sap;
for (; size > 0; n++, size -= sizeof (struct sap_info)) {
if (size < sizeof (struct sap_info))
break;
fprintf(fd, " service %04X %-20.20s "
"addr %s.%04X metric %d\n",
ntohs(n->ServType),
n->ServName,
ipxdp_ntoa(&n->ipx),
ntohs(n->ipx.x_port),
ntohs(n->hops));
}
break;
}
}
void
dumpsaptable(fd, sh)
FILE *fd;
struct sap_hash *sh;
{
register struct sap_entry *sap;
struct sap_hash *hash;
int x = 0;
fprintf(fd, "------- SAP table dump. -------\n");
for (hash = sh; hash < &sh[SAPHASHSIZ]; hash++, x++) {
fprintf(fd, "HASH %d\n", x);
sap = hash->forw;
for (; sap != (struct sap_entry *)hash; sap = sap->forw) {
fprintf(fd, " service %04X %-20.20s "
"addr %s.%04X %c metric %d\n",
ntohs(sap->sap.ServType),
sap->sap.ServName,
ipxdp_ntoa(&sap->sap.ipx),
ntohs(sap->sap.ipx.x_port),
(sap->clone ? 'C' : ' '),
ntohs(sap->sap.hops));
}
}
fprintf(fd, "\n");
}
void
dumpriptable(fd)
FILE *fd;
{
register struct rt_entry *rip;
struct rthash *hash;
int x;
struct rthash *rh = nethash;
fprintf(fd, "------- RIP table dump. -------\n");
x = 0;
fprintf(fd, "Network table.\n");
for (hash = rh; hash < &rh[ROUTEHASHSIZ]; hash++, x++) {
fprintf(fd, "HASH %d\n", x);
rip = hash->rt_forw;
for (; rip != (struct rt_entry *)hash; rip = rip->rt_forw) {
fprintf(fd, " dest %s\t",
ipxdp_ntoa(&satoipx_addr(rip->rt_dst)));
fprintf(fd, "%s metric %d, ticks %d\n",
ipxdp_ntoa(&satoipx_addr(rip->rt_router)),
rip->rt_metric,
rip->rt_ticks);
}
}
fprintf(fd, "\n");
}
union ipx_net_u net;
char *
ipxdp_nettoa(val)
union ipx_net val;
{
static char buf[100];
net.net_e = val;
(void)sprintf(buf, "%u", ntohl(net.long_e));
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);
}