FreeBSD-5.3/usr.bin/systat/ip.c
/*-
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/systat/ip.c,v 1.5 2001/12/12 00:13:37 markm Exp $");
#ifdef lint
static const char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
#endif
/* From:
"Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "systat.h"
#include "extern.h"
#include "mode.h"
struct stat {
struct ipstat i;
struct udpstat u;
};
static struct stat curstat, initstat, oldstat;
/*-
--0 1 2 3 4 5 6 7
--0123456789012345678901234567890123456789012345678901234567890123456789012345
01 IP Input IP Output
02999999999 total packets received 999999999 total packets sent
03999999999 - with bad checksums 999999999 - generated locally
04999999999 - too short for header 999999999 - output drops
05999999999 - too short for data 999999999 output fragments generated
06999999999 - with invalid hlen 999999999 - fragmentation failed
07999999999 - with invalid length 999999999 destinations unreachable
08999999999 - with invalid version 999999999 packets output via raw IP
09999999999 - jumbograms
10999999999 total fragments received UDP Statistics
11999999999 - fragments dropped 999999999 total input packets
12999999999 - fragments timed out 999999999 - too short for header
13999999999 - packets reassembled ok 999999999 - invalid checksum
14999999999 packets forwarded 999999999 - no checksum
15999999999 - unreachable dests 999999999 - invalid length
16999999999 - redirects generated 999999999 - no socket for dest port
17999999999 option errors 999999999 - no socket for broadcast
18999999999 unwanted multicasts 999999999 - socket buffer full
19999999999 delivered to upper layer 999999999 total output packets
--0123456789012345678901234567890123456789012345678901234567890123456789012345
--0 1 2 3 4 5 6 7
*/
WINDOW *
openip(void)
{
return (subwin(stdscr, LINES-4-1, 0, 4, 0));
}
void
closeip(w)
WINDOW *w;
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
delwin(w);
}
void
labelip(void)
{
wmove(wnd, 0, 0); wclrtoeol(wnd);
#define L(row, str) mvwprintw(wnd, row, 10, str)
#define R(row, str) mvwprintw(wnd, row, 45, str);
L(1, "IP Input"); R(1, "IP Output");
L(2, "total packets received"); R(2, "total packets sent");
L(3, "- with bad checksums"); R(3, "- generated locally");
L(4, "- too short for header"); R(4, "- output drops");
L(5, "- too short for data"); R(5, "output fragments generated");
L(6, "- with invalid hlen"); R(6, "- fragmentation failed");
L(7, "- with invalid length"); R(7, "destinations unreachable");
L(8, "- with invalid version"); R(8, "packets output via raw IP");
L(9, "- jumbograms");
L(10, "total fragments received"); R(10, "UDP Statistics");
L(11, "- fragments dropped"); R(11, "total input packets");
L(12, "- fragments timed out"); R(12, "- too short for header");
L(13, "- packets reassembled ok"); R(13, "- invalid checksum");
L(14, "packets forwarded"); R(14, "- no checksum");
L(15, "- unreachable dests"); R(15, "- invalid length");
L(16, "- redirects generated"); R(16, "- no socket for dest port");
L(17, "option errors"); R(17, "- no socket for broadcast");
L(18, "unwanted multicasts"); R(18, "- socket buffer full");
L(19, "delivered to upper layer"); R(19, "total output packets");
#undef L
#undef R
}
static void
domode(struct stat *ret)
{
const struct stat *sub;
int divisor = 1;
switch(currentmode) {
case display_RATE:
sub = &oldstat;
divisor = naptime;
break;
case display_DELTA:
sub = &oldstat;
break;
case display_SINCE:
sub = &initstat;
break;
default:
*ret = curstat;
return;
}
#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
DO(i.ips_total);
DO(i.ips_badsum);
DO(i.ips_tooshort);
DO(i.ips_toosmall);
DO(i.ips_badhlen);
DO(i.ips_badlen);
DO(i.ips_fragments);
DO(i.ips_fragdropped);
DO(i.ips_fragtimeout);
DO(i.ips_forward);
DO(i.ips_cantforward);
DO(i.ips_redirectsent);
DO(i.ips_noproto);
DO(i.ips_delivered);
DO(i.ips_localout);
DO(i.ips_odropped);
DO(i.ips_reassembled);
DO(i.ips_fragmented);
DO(i.ips_ofragments);
DO(i.ips_cantfrag);
DO(i.ips_badoptions);
DO(i.ips_noroute);
DO(i.ips_badvers);
DO(i.ips_rawout);
DO(i.ips_toolong);
DO(i.ips_notmember);
DO(u.udps_ipackets);
DO(u.udps_hdrops);
DO(u.udps_badsum);
DO(u.udps_nosum);
DO(u.udps_badlen);
DO(u.udps_noport);
DO(u.udps_noportbcast);
DO(u.udps_fullsock);
DO(u.udps_opackets);
#undef DO
}
void
showip(void)
{
struct stat stats;
u_long totalout;
domode(&stats);
totalout = stats.i.ips_forward + stats.i.ips_localout;
#define DO(stat, row, col) \
mvwprintw(wnd, row, col, "%9lu", stats.stat)
DO(i.ips_total, 2, 0);
mvwprintw(wnd, 2, 35, "%9lu", totalout);
DO(i.ips_badsum, 3, 0);
DO(i.ips_localout, 3, 35);
DO(i.ips_tooshort, 4, 0);
DO(i.ips_odropped, 4, 35);
DO(i.ips_toosmall, 5, 0);
DO(i.ips_ofragments, 5, 35);
DO(i.ips_badhlen, 6, 0);
DO(i.ips_cantfrag, 6, 35);
DO(i.ips_badlen, 7, 0);
DO(i.ips_noroute, 7, 35);
DO(i.ips_badvers, 8, 0);
DO(i.ips_rawout, 8, 35);
DO(i.ips_toolong, 9, 0);
DO(i.ips_fragments, 10, 0);
DO(i.ips_fragdropped, 11, 0);
DO(u.udps_ipackets, 11, 35);
DO(i.ips_fragtimeout, 12, 0);
DO(u.udps_hdrops, 12, 35);
DO(i.ips_reassembled, 13, 0);
DO(u.udps_badsum, 13, 35);
DO(i.ips_forward, 14, 0);
DO(u.udps_nosum, 14, 35);
DO(i.ips_cantforward, 15, 0);
DO(u.udps_badlen, 15, 35);
DO(i.ips_redirectsent, 16, 0);
DO(u.udps_noport, 16, 35);
DO(i.ips_badoptions, 17, 0);
DO(u.udps_noportbcast, 17, 35);
DO(i.ips_notmember, 18, 0);
DO(u.udps_fullsock, 18, 35);
DO(i.ips_delivered, 19, 0);
DO(u.udps_opackets, 19, 35);
#undef DO
}
int
initip(void)
{
size_t len;
int name[4];
name[0] = CTL_NET;
name[1] = PF_INET;
name[2] = IPPROTO_IP;
name[3] = IPCTL_STATS;
len = 0;
if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
error("sysctl getting ipstat size failed");
return 0;
}
if (len > sizeof curstat.i) {
error("ipstat structure has grown--recompile systat!");
return 0;
}
if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
error("sysctl getting ipstat failed");
return 0;
}
name[2] = IPPROTO_UDP;
name[3] = UDPCTL_STATS;
len = 0;
if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
error("sysctl getting udpstat size failed");
return 0;
}
if (len > sizeof curstat.u) {
error("ipstat structure has grown--recompile systat!");
return 0;
}
if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
error("sysctl getting udpstat failed");
return 0;
}
oldstat = initstat;
return 1;
}
void
resetip(void)
{
size_t len;
int name[4];
name[0] = CTL_NET;
name[1] = PF_INET;
name[2] = IPPROTO_IP;
name[3] = IPCTL_STATS;
len = sizeof initstat.i;
if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
error("sysctl getting ipstat failed");
}
name[2] = IPPROTO_UDP;
name[3] = UDPCTL_STATS;
len = sizeof initstat.u;
if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
error("sysctl getting udpstat failed");
}
oldstat = initstat;
}
void
fetchip(void)
{
int name[4];
size_t len;
oldstat = curstat;
name[0] = CTL_NET;
name[1] = PF_INET;
name[2] = IPPROTO_IP;
name[3] = IPCTL_STATS;
len = sizeof curstat.i;
if (sysctl(name, 4, &curstat.i, &len, 0, 0) < 0)
return;
name[2] = IPPROTO_UDP;
name[3] = UDPCTL_STATS;
len = sizeof curstat.u;
if (sysctl(name, 4, &curstat.u, &len, 0, 0) < 0)
return;
}