freebsd-skq/usr.bin/systat/ip6.c
pfg 872b698bd4 General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

303 lines
8.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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. 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("$FreeBSD$");
#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"
*/
#ifdef INET6
#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 <netinet6/ip6_var.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "systat.h"
#include "extern.h"
#include "mode.h"
static struct ip6stat curstat, initstat, oldstat;
/*-
--0 1 2 3 4 5 6 7
--0123456789012345678901234567890123456789012345678901234567890123456789012345
00 IPv6 Input IPv6 Output
019999999 total packets received 999999999 total packets sent
029999999 - too short for header 999999999 - generated locally
039999999 - too short for data 999999999 - output drops
049999999 - with invalid version 999999999 output fragments generated
059999999 total fragments received 999999999 - fragmentation failed
069999999 - fragments dropped 999999999 destinations unreachable
079999999 - fragments timed out 999999999 packets output via raw IP
089999999 - fragments overflown
099999999 - packets reassembled ok Input next-header histogram
109999999 packets forwarded 999999999 - destination options
119999999 - unreachable dests 999999999 - hop-by-hop options
129999999 - redirects generated 999999999 - IPv4
139999999 option errors 999999999 - TCP
149999999 unwanted multicasts 999999999 - UDP
159999999 delivered to upper layer 999999999 - IPv6
169999999 bad scope packets 999999999 - routing header
179999999 address selection failed 999999999 - fragmentation header
18 999999999 - ICMP6
19 999999999 - none
--0123456789012345678901234567890123456789012345678901234567890123456789012345
--0 1 2 3 4 5 6 7
*/
WINDOW *
openip6(void)
{
return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
}
void
closeip6(WINDOW *w)
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
delwin(w);
}
void
labelip6(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(0, "IPv6 Input"); R(0, "IPv6 Output");
L(1, "total packets received"); R(1, "total packets sent");
L(2, "- too short for header"); R(2, "- generated locally");
L(3, "- too short for data"); R(3, "- output drops");
L(4, "- with invalid version"); R(4, "output fragments generated");
L(5, "total fragments received"); R(5, "- fragmentation failed");
L(6, "- fragments dropped"); R(6, "destinations unreachable");
L(7, "- fragments timed out"); R(7, "packets output via raw IP");
L(8, "- fragments overflown");
L(9, "- packets reassembled ok"); R(9, "Input next-header histogram");
L(10, "packets forwarded"); R(10, " - destination options");
L(11, "- unreachable dests"); R(11, " - hop-by-hop options");
L(12, "- redirects generated"); R(12, " - IPv4");
L(13, "option errors"); R(13, " - TCP");
L(14, "unwanted multicasts"); R(14, " - UDP");
L(15, "delivered to upper layer"); R(15, " - IPv6");
L(16, "bad scope packets"); R(16, " - routing header");
L(17, "address selection failed"); R(17, " - fragmentation header");
R(18, " - ICMP6");
R(19, " - none");
#undef L
#undef R
}
static void
domode(struct ip6stat *ret)
{
const struct ip6stat *sub;
int divisor = 1, i;
switch(currentmode) {
case display_RATE:
sub = &oldstat;
divisor = (delay > 1000000) ? delay / 1000000 : 1;
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(ip6s_total);
DO(ip6s_tooshort);
DO(ip6s_toosmall);
DO(ip6s_fragments);
DO(ip6s_fragdropped);
DO(ip6s_fragtimeout);
DO(ip6s_fragoverflow);
DO(ip6s_forward);
DO(ip6s_cantforward);
DO(ip6s_redirectsent);
DO(ip6s_delivered);
DO(ip6s_localout);
DO(ip6s_odropped);
DO(ip6s_reassembled);
DO(ip6s_fragmented);
DO(ip6s_ofragments);
DO(ip6s_cantfrag);
DO(ip6s_badoptions);
DO(ip6s_noroute);
DO(ip6s_badvers);
DO(ip6s_rawout);
DO(ip6s_notmember);
for (i = 0; i < 256; i++)
DO(ip6s_nxthist[i]);
DO(ip6s_badscope);
DO(ip6s_sources_none);
#undef DO
}
void
showip6(void)
{
struct ip6stat stats;
u_long totalout;
domode(&stats);
totalout = stats.ip6s_forward + stats.ip6s_localout;
#define DO(stat, row, col) \
mvwprintw(wnd, row, col, "%9lu", stats.stat)
DO(ip6s_total, 1, 0);
mvwprintw(wnd, 1, 35, "%9lu", totalout);
DO(ip6s_tooshort, 2, 0);
DO(ip6s_localout, 2, 35);
DO(ip6s_toosmall, 3, 0);
DO(ip6s_odropped, 3, 35);
DO(ip6s_badvers, 4, 0);
DO(ip6s_ofragments, 4, 35);
DO(ip6s_fragments, 5, 0);
DO(ip6s_cantfrag, 5, 35);
DO(ip6s_fragdropped, 6, 0);
DO(ip6s_noroute, 6, 35);
DO(ip6s_fragtimeout, 7, 0);
DO(ip6s_rawout, 7, 35);
DO(ip6s_fragoverflow, 8, 0);
DO(ip6s_reassembled, 9, 0);
DO(ip6s_forward, 10, 0);
DO(ip6s_nxthist[IPPROTO_DSTOPTS], 10, 35);
DO(ip6s_cantforward, 11, 0);
DO(ip6s_nxthist[IPPROTO_HOPOPTS], 11, 35);
DO(ip6s_redirectsent, 12, 0);
DO(ip6s_nxthist[IPPROTO_IPV4], 12, 35);
DO(ip6s_badoptions, 13, 0);
DO(ip6s_nxthist[IPPROTO_TCP], 13, 35);
DO(ip6s_notmember, 14, 0);
DO(ip6s_nxthist[IPPROTO_UDP], 14, 35);
DO(ip6s_delivered, 15, 0);
DO(ip6s_nxthist[IPPROTO_IPV6], 15, 35);
DO(ip6s_badscope, 16, 0);
DO(ip6s_nxthist[IPPROTO_ROUTING], 16, 35);
DO(ip6s_sources_none, 17, 0);
DO(ip6s_nxthist[IPPROTO_FRAGMENT], 17, 35);
DO(ip6s_nxthist[IPPROTO_ICMPV6], 18, 35);
DO(ip6s_nxthist[IPPROTO_NONE], 19, 35);
#undef DO
}
int
initip6(void)
{
size_t len;
int name[4];
name[0] = CTL_NET;
name[1] = PF_INET6;
name[2] = IPPROTO_IPV6;
name[3] = IPV6CTL_STATS;
len = 0;
if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
error("sysctl getting ip6stat size failed");
return 0;
}
if (len > sizeof curstat) {
error("ip6stat structure has grown--recompile systat!");
return 0;
}
if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
error("sysctl getting ip6stat failed");
return 0;
}
oldstat = initstat;
return 1;
}
void
resetip6(void)
{
size_t len;
int name[4];
name[0] = CTL_NET;
name[1] = PF_INET6;
name[2] = IPPROTO_IPV6;
name[3] = IPV6CTL_STATS;
len = sizeof initstat;
if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
error("sysctl getting ipstat failed");
}
oldstat = initstat;
}
void
fetchip6(void)
{
int name[4];
size_t len;
oldstat = curstat;
name[0] = CTL_NET;
name[1] = PF_INET6;
name[2] = IPPROTO_IPV6;
name[3] = IPV6CTL_STATS;
len = sizeof curstat;
if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
return;
}
#endif