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Merge ping6 to ping

Browse Source 
There is now a single ping binary, which chooses to use ICMP or ICMPv4
based on the -4 and -6 options, and the format of the address.

Submitted by:	Ján Sučan <sucanjan@gmail.com>
Sponsored by:	Google LLC (Google Summer of Code 2019)
MFC after:	Never
Differential Revision:	https://reviews.freebsd.org/D21377
This commit is contained in:
Alan Somers 2020-11-26 04:29:30 +00:00
parent b05f17a12f
commit 3cde9171d2
22 changed files with 685 additions and 843 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
ObsoleteFiles.inc
View File

@ -36,6 +36,16 @@
# xargs -n1 | sort | uniq -d;
# done
# 20201124: ping6(8) was merged into ping(8)
OLD_FILES+=sbin/ping6
OLD_FILES+=rescue/ping6
OLD_FILES+=usr/lib/debug/sbin/ping6.debug
OLD_FILES+=usr/share/man/man8/ping6.8.gz
OLD_FILES+=usr/tests/sbin/ping6/Kyuafile
OLD_FILES+=usr/tests/sbin/ping6/ping6_c1_s8_t1.out
OLD_FILES+=usr/tests/sbin/ping6/ping6_test
OLD_DIRS+=usr/tests/sbin/ping6
# 20201025: Remove cal data files
OLD_FILES+=usr/share/calendar/calendar.all
OLD_FILES+=usr/share/calendar/calendar.australia

4
UPDATING
View File

@ -26,6 +26,10 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 13.x IS SLOW:
world, or to merely disable the most expensive debugging functionality
at runtime, run "ln -s 'abort:false,junk:false' /etc/malloc.conf".)
20201124:
ping6 has been merged into ping. It can now be called as "ping -6".
See ping(8) for details.
20201108:
Default value of net.add_addr_allfibs has been changed to 0.
If you have multi-fib configuration and rely on existence of all

2
etc/mtree/BSD.tests.dist
View File

@ -448,8 +448,6 @@
..
ping
..
ping6
..
route
..
..

1
rescue/rescue/Makefile
View File

@ -103,7 +103,6 @@ CRUNCH_PROGS_sbin+= ccdconfig
.endif
.if ${MK_INET6_SUPPORT} != "no"
CRUNCH_PROGS_sbin+= ping6
CRUNCH_PROGS_sbin+= rtsol
.endif

1
sbin/Makefile
View File

@ -73,7 +73,6 @@ SUBDIR.${MK_CCD}+= ccdconfig
SUBDIR.${MK_CXX}+= devd
SUBDIR.${MK_HAST}+= hastctl
SUBDIR.${MK_HAST}+= hastd
SUBDIR.${MK_INET6}+= ping6
SUBDIR.${MK_INET6}+= rtsol
SUBDIR.${MK_IPFILTER}+= ipf
SUBDIR.${MK_IPFW}+= ipfw

8
sbin/ping/Makefile
View File

@ -5,12 +5,18 @@
PACKAGE=runtime
PROG= ping
SRCS= ping.c utils.c
SRCS= main.c ping.c utils.c
MAN= ping.8
BINOWN= root
BINMODE=4555
LIBADD= m
.if ${MK_INET6_SUPPORT} != "no"
CFLAGS+= -DINET6 -DKAME_SCOPEID
SRCS+= ping6.c
LIBADD+= md
.endif
.if ${MK_DYNAMICROOT} == "no"
.warning ${PROG} built without libcasper support
.elif ${MK_CASPER} != "no" && !defined(RESCUE)

191
sbin/ping/main.c Normal file
View File

@ -0,0 +1,191 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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("$FreeBSD$");
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <err.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "main.h"
#include "ping.h"
#ifdef INET6
#include "ping6.h"
#endif
#ifdef INET6
#define OPTSTR ":46"
#else
#define OPTSTR ":4"
#endif
int
main(int argc, char *argv[])
{
struct in_addr a;
struct addrinfo hints;
int ch;
bool ipv4;
#ifdef INET6
struct in6_addr a6;
bool ipv6;
ipv6 = false;
#endif
ipv4 = false;
while ((ch = getopt(argc, argv, OPTSTR)) != -1) {
switch(ch) {
case '4':
ipv4 = true;
break;
#ifdef INET6
case '6':
ipv6 = true;
break;
#endif
default:
break;
}
}
if (optind >= argc)
usage();
optreset = 1;
optind = 1;
#ifdef INET6
if (ipv4 && ipv6)
errx(1, "-4 and -6 cannot be used simultaneously");
#endif
if (inet_pton(AF_INET, argv[argc - 1], &a) == 1) {
#ifdef INET6
if (ipv6)
errx(1, "IPv6 requested but IPv4 target address "
"provided");
#endif
hints.ai_family = AF_INET;
}
#ifdef INET6
else if (inet_pton(AF_INET6, argv[argc - 1], &a6) == 1) {
if (ipv4)
errx(1, "IPv4 requested but IPv6 target address "
"provided");
hints.ai_family = AF_INET6;
} else if (ipv6)
hints.ai_family = AF_INET6;
#endif
else if (ipv4)
hints.ai_family = AF_INET;
else {
struct addrinfo *res;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_RAW;
hints.ai_family = AF_UNSPEC;
getaddrinfo(argv[argc - 1], NULL, &hints, &res);
if (res != NULL) {
hints.ai_family = res[0].ai_family;
freeaddrinfo(res);
}
}
if (hints.ai_family == AF_INET)
return ping(argc, argv);
#ifdef INET6
else if (hints.ai_family == AF_INET6)
return ping6(argc, argv);
#endif
else
errx(1, "Unknown host");
}
void
usage(void)
{
(void)fprintf(stderr,
"usage: ping [-4AaDdfHnoQqRrv] [-C pcp] [-c count] "
"[-G sweepmaxsize]\n"
" [-g sweepminsize] [-h sweepincrsize] [-i wait] "
"[-l preload]\n"
" [-M mask | time] [-m ttl]"
#ifdef IPSEC
"[-P policy] "
#endif
"[-p pattern] [-S src_addr] \n"
" [-s packetsize] [-t timeout] [-W waittime] [-z tos] "
"IPv4-host\n"
" ping [-4AaDdfHLnoQqRrv] [-C pcp] [-c count] [-I iface] "
"[-i wait]\n"
" [-l preload] [-M mask | time] [-m ttl] "
#ifdef IPSEC
"[-P policy] "
#endif
"[-p pattern]\n"
" [-S src_addr] [-s packetsize] [-T ttl] [-t timeout] [-W waittime]\n"
" [-z tos] IPv4-mcast-group\n"
#ifdef INET6
" ping [-6aADd"
#if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
"E"
#endif
"fHnNoOq"
#ifdef IPV6_USE_MIN_MTU
"u"
#endif
"vyY"
#if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
"Z"
#endif
"] "
"[-b bufsiz] [-c count] [-e gateway]\n"
" [-I interface] [-i wait] [-k addrtype] [-l preload] "
"[-m hoplimit]\n"
" [-p pattern]"
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
" [-P policy]"
#endif
" [-S sourceaddr] [-s packetsize] [-t timeout]\n"
" [-W waittime] [-z tclass] [IPv6-hops ...] IPv6-host\n"
#endif /* INET6 */
);
exit(1);
}

36
sbin/ping/main.h Normal file
View File

@ -0,0 +1,36 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef MAIN_H
#define MAIN_H 1
void usage(void) __dead2;
#endif

432
sbin/ping/ping.8
View File

@ -28,17 +28,19 @@
.\" @(#)ping.8 8.2 (Berkeley) 12/11/93
.\" $FreeBSD$
.\"
.Dd October 2, 2020
.Dd November 24, 2020
.Dt PING 8
.Os
.Sh NAME
.Nm ping
.Nd send
.Tn ICMP ECHO_REQUEST
.Tn ICMP
or
.Tn ICMPv6 ECHO_REQUEST
packets to network hosts
.Sh SYNOPSIS
.Nm
.Op Fl AaDdfHnoQqRrv
.Op Fl 4AaDdfHnoQqRrv
.Op Fl C Ar pcp
.Op Fl c Ar count
.Op Fl G Ar sweepmaxsize
@ -55,9 +57,9 @@ packets to network hosts
.Op Fl t Ar timeout
.Op Fl W Ar waittime
.Op Fl z Ar tos
.Ar host
.Ar IPv4-host
.Nm
.Op Fl AaDdfHLnoQqRrv
.Op Fl 4AaDdfHLnoQqRrv
.Op Fl C Ar pcp
.Op Fl c Ar count
.Op Fl I Ar iface
@ -73,11 +75,31 @@ packets to network hosts
.Op Fl t Ar timeout
.Op Fl W Ar waittime
.Op Fl z Ar tos
.Ar mcast-group
.Ar IPv4-mcast-group
.Nm
.Op Fl 6AaDdEfHNnOoquvYyZ
.Op Fl b Ar bufsiz
.Op Fl c Ar count
.Op Fl e Ar gateway
.Op Fl I Ar interface
.Op Fl i Ar wait
.Op Fl k Ar addrtype
.Op Fl l Ar preload
.Op Fl m Ar hoplimit
.Op Fl P Ar policy
.Op Fl p Ar pattern
.Op Fl S Ar sourceaddr
.Op Fl s Ar packetsize
.Op Fl t Ar timeout
.Op Fl W Ar waittime
.Op Ar IPv6-hops ...
.Ar IPv6-host
.Sh DESCRIPTION
The
.Nm
utility uses the
utility invoked with an IPv4 target
.Ns ( Ar IPv4-host No or Ar IPv4-mcast-group Ns )
uses the
.Tn ICMP
.No protocol Ap s mandatory
.Tn ECHO_REQUEST
@ -94,7 +116,32 @@ header, followed by a
and then an arbitrary number of
.Dq pad
bytes used to fill out the packet.
The options are as follows:
.Pp
When invoked with an IPv6 target
.Ns ( Ar IPv6-host Ns ) Ns ,
it uses the
.Tn ICMPv6
protocol's mandatory
.Tn ICMP6_ECHO_REQUEST
datagram to elicit an
.Tn ICMP6_ECHO_REPLY
.Ns .
.Tn ICMP6_ECHO_REQUEST
datagrams have an IPv6 header and
.Tn ICMPv6
header formatted as documented in RFC 2463.
.Pp
When invoked with a hostname, the version to which the target is
resolved first is used. In that case, the options and arguments used
must be valid for the specific IP version, otherwise
.Nm
exits with an error. If the target is resolved to both IPv4 and IPv6,
the specific IP version can be requested by
.Fl 4
or
.Fl 6
options, respectively.
.Ss Options common to both IPv4 and IPv6 targets
.Bl -tag -width indent
.It Fl A
Audible.
@ -112,8 +159,6 @@ Include a bell
.Tn ( ASCII
0x07)
character in the output when any packet is received.
This option is ignored
if other format options are present.
.It Fl C Ar pcp
Add an 802.1p Ethernet Priority Code Point when sending a packet.
0..7 uses that specific PCP, -1 uses the interface default PCP (or none).
@ -126,12 +171,13 @@ packets.
If this option is not specified,
.Nm
will operate until interrupted.
If this option is specified in conjunction with ping sweeps,
.Pp
For an IPv4 target, if this option is specified in conjunction with ping sweeps,
each sweep will consist of
.Ar count
packets.
.It Fl D
Set the Don't Fragment bit.
Disable fragmentation.
.It Fl d
Set the
.Dv SO_DEBUG
@ -152,31 +198,24 @@ Only the super-user may use this option.
.Bf -emphasis
This can be very hard on a network and should be used with caution.
.Ef
.It Fl G Ar sweepmaxsize
Specify the maximum size of
.Tn ICMP
payload when sending sweeping pings.
This option is required for ping sweeps.
.It Fl g Ar sweepminsize
Specify the size of
.Tn ICMP
payload to start with when sending sweeping pings.
The default value is 0.
.It Fl H
Hostname output.
Try to do a reverse DNS lookup when displaying addresses.
This is the opposite of the
.Fl n
option.
.It Fl h Ar sweepincrsize
Specify the number of bytes to increment the size of
.Tn ICMP
payload after
each sweep when sending sweeping pings.
The default value is 1.
.It Fl I Ar iface
Source multicast packets with the given interface address.
This flag only applies if the ping destination is a multicast address.
For an IPv4 target,
.Ar iface
is an IP address indentifying an interface from which the packets will
be sent. This flag applies only if the ping target is a multicast
address.
.Pp
For an IPv6 target,
.Ar iface
is a name of an interface (e.g. `em0') from which the packets will be
sent. This flag applies if the ping target is a multicast address, or
link-local/site-local unicast address.
.It Fl i Ar wait
Wait
.Ar wait
@ -188,9 +227,6 @@ values less than 1 second.
This option is incompatible with the
.Fl f
option.
.It Fl L
Suppress loopback of multicast packets.
This flag only applies if the ping destination is a multicast address.
.It Fl l Ar preload
If
.Ar preload
@ -199,35 +235,13 @@ is specified,
sends that many packets as fast as possible before falling into its normal
mode of behavior.
Only the super-user may use this option.
.It Fl M Cm mask | time
Use
.Dv ICMP_MASKREQ
or
.Dv ICMP_TSTAMP
instead of
.Dv ICMP_ECHO .
For
.Cm mask ,
print the netmask of the remote machine.
Set the
.Va net.inet.icmp.maskrepl
MIB variable to enable
.Dv ICMP_MASKREPLY
and
.Va net.inet.icmp.maskfake
if you want to override the netmask in the response.
For
.Cm time ,
print the origination, reception and transmission timestamps.
Set the
.Va net.inet.icmp.tstamprepl
MIB variable to enable or disable
.Dv ICMP_TSTAMPREPLY .
.It Fl m Ar ttl
Set the IP Time To Live for outgoing packets.
For an IPv4 target, set the IP Time To Live for outgoing packets.
If not specified, the kernel uses the value of the
.Va net.inet.ip.ttl
MIB variable.
.Pp
For an IPv6 target, set the IPv6 hoplimit.
.It Fl n
Numeric output only.
No attempt will be made to lookup symbolic names for host addresses.
@ -252,6 +266,97 @@ For example,
.Dq Li \-p ff
will cause the sent packet to be filled with all
ones.
.It Fl q
Quiet output.
Nothing is displayed except the summary lines at startup time and
when finished.
.It Fl S Ar src_addr
Use the following IP address as the source address in outgoing packets.
On hosts with more than one IP address, this option can be used to
force the source address to be something other than the IP address
of the interface the probe packet is sent on.
.Pp
For IPv4, if the IP address is not one of this machine's interface
addresses, an error is returned and nothing is sent.
.Pp
For IPv6, the source address must be one of the unicast addresses of
the sending node, and must be numeric.
.It Fl s Ar packetsize
Specify the number of data bytes to be sent.
The default is 56, which translates into 64
.Tn ICMP
data bytes when combined
with the 8 bytes of
.Tn ICMP
header data.
.Pp
For IPv4, only the super-user may specify values more than default.
This option cannot be used with ping sweeps.
.Pp
For IPv6, you may need to specify
.Fl b
as well to extend socket buffer size.
.It Fl t Ar timeout
Specify a timeout, in seconds, before ping exits regardless of how
many packets have been received.
.It Fl v
Verbose output.
.Tn ICMP
packets other than
.Tn ECHO_RESPONSE
that are received are listed.
.It Fl W Ar waittime
Time in milliseconds to wait for a reply for each packet sent.
If a reply arrives later, the packet is not printed as replied, but
considered as replied when calculating statistics.
.El
.Ss Options only for IPv4 targets
.Bl -tag -width indent
.It Fl 4
Use IPv4 regardless of how the target is resolved.
.It Fl G Ar sweepmaxsize
Specify the maximum size of
.Tn ICMP
payload when sending sweeping pings.
This option is required for ping sweeps.
.It Fl g Ar sweepminsize
Specify the size of
.Tn ICMP
payload to start with when sending sweeping pings.
The default value is 0.
.It Fl h Ar sweepincrsize
Specify the number of bytes to increment the size of
.Tn ICMP
payload after
each sweep when sending sweeping pings.
The default value is 1.
.It Fl L
Suppress loopback of multicast packets.
This flag only applies if the ping destination is a multicast address.
.It Fl M Cm mask | time
Use
.Dv ICMP_MASKREQ
or
.Dv ICMP_TSTAMP
instead of
.Dv ICMP_ECHO .
For
.Cm mask ,
print the netmask of the remote machine.
Set the
.Va net.inet.icmp.maskrepl
MIB variable to enable
.Dv ICMP_MASKREPLY
and
.Va net.inet.icmp.maskfake
if you want to override the netmask in the response.
For
.Cm time ,
print the origination, reception and transmission timestamps.
Set the
.Va net.inet.icmp.tstamprepl
MIB variable to enable or disable
.Dv ICMP_TSTAMPREPLY .
.It Fl Q
Somewhat quiet output.
.No Don Ap t
@ -268,10 +373,6 @@ flag,
.Nm
prints out any ICMP error messages caused by its own ECHO_REQUEST
messages.
.It Fl q
Quiet output.
Nothing is displayed except the summary lines at startup time and
when finished.
.It Fl R
Record route.
Includes the
@ -299,42 +400,121 @@ This option can be used to ping a local host through an interface
that has no route through it
(e.g., after the interface was dropped by
.Xr routed 8 ) .
.It Fl S Ar src_addr
Use the following IP address as the source address in outgoing packets.
On hosts with more than one IP address, this option can be used to
force the source address to be something other than the IP address
of the interface the probe packet is sent on.
If the IP address
is not one of this machine's interface addresses, an error is
returned and nothing is sent.
.It Fl s Ar packetsize
Specify the number of data bytes to be sent.
The default is 56, which translates into 64
.Tn ICMP
data bytes when combined
with the 8 bytes of
.Tn ICMP
header data.
Only the super-user may specify values more than default.
This option cannot be used with ping sweeps.
.It Fl T Ar ttl
Set the IP Time To Live for multicasted packets.
This flag only applies if the ping destination is a multicast address.
.It Fl t Ar timeout
Specify a timeout, in seconds, before ping exits regardless of how
many packets have been received.
.It Fl v
Verbose output.
.Tn ICMP
packets other than
.Tn ECHO_RESPONSE
that are received are listed.
.It Fl W Ar waittime
Time in milliseconds to wait for a reply for each packet sent.
If a reply arrives later, the packet is not printed as replied, but
considered as replied when calculating statistics.
.It Fl z Ar tos
Use the specified type of service.
.It Ar IPv4-host
hostname or IPv4 address of the final destination node.
.It Ar IPv4-mcast-group
IPv4 multicast address of the final destination nodes.
.El
.Ss Options only for IPv6 targets
.Bl -tag -width indent
.It Fl 6
Use IPv6 regardless of how the target is resolved.
.It Fl b Ar bufsiz
Set socket buffer size.
.It Fl e Ar gateway
Specifies to use
.Ar gateway
as the next hop to the destination.
The gateway must be a neighbor of the sending node.
.It Fl k Ar addrtype
Generate ICMPv6 Node Information Node Addresses query, rather than echo-request.
.Ar addrtype
must be a string constructed of the following characters.
.Bl -tag -width Ds -compact
.It Ic a
requests unicast addresses from all of the responder's interfaces.
If the character is omitted,
only those addresses which belong to the interface which has the
responder's address are requests.
.It Ic c
requests responder's IPv4-compatible and IPv4-mapped addresses.
.It Ic g
requests responder's global-scope addresses.
.It Ic s
requests responder's site-local addresses.
.It Ic l
requests responder's link-local addresses.
.It Ic A
requests responder's anycast addresses.
Without this character, the responder will return unicast addresses only.
With this character, the responder will return anycast addresses only.
Note that the specification does not specify how to get responder's
anycast addresses.
This is an experimental option.
.El
.It Fl N
Probe node information multicast group address
.Pq Li ff02::2:ffxx:xxxx .
.Ar host
must be string hostname of the target
(must not be a numeric IPv6 address).
Node information multicast group will be computed based on given
.Ar host ,
and will be used as the final destination.
Since node information multicast group is a link-local multicast group,
outgoing interface needs to be specified by
.Fl I
option.
.Pp
When specified twice, the address
.Pq Li ff02::2:xxxx:xxxx
is used instead.
The former is in RFC 4620, the latter is in an old Internet Draft
draft-ietf-ipngwg-icmp-name-lookup.
Note that KAME-derived implementations including
.Fx
use the latter.
.It Fl O
Generate ICMPv6 Node Information supported query types query,
rather than echo-request.
.Fl s
has no effect if
.Fl O
is specified.
.It Fl u
By default,
.Nm
asks the kernel to fragment packets to fit into the minimum IPv6 MTU.
The
.Fl u
option
will suppress the behavior in the following two levels:
when the option is specified once, the behavior will be disabled for
unicast packets.
When the option is more than once, it will be disabled for both
unicast and multicast packets.
.It Fl Y
Same as
.Fl y ,
but with old packet format based on 03 draft.
This option is present for backward compatibility.
.Fl s
has no effect if
.Fl y
is specified.
.It Fl y
Generate ICMPv6 Node Information DNS Name query, rather than echo-request.
.Fl s
has no effect if
.Fl y
is specified.
.It Ar IPv6-hops
IPv6 addresses for intermediate nodes,
which will be put into type 0 routing header.
.It Ar IPv6-host
IPv6 address of the final destination node.
.El
.Ss Experimental options only for IPv6 target
.Bl -tag -width indent
.It Fl E
Enables transport-mode IPsec encapsulated security payload.
.It Fl Z
Enables transport-mode IPsec authentication header.
.El
.Pp
When using
@ -364,8 +544,8 @@ receives a
argument for
.Xr stty 1 )
signal, the current number of packets sent and received, and the
minimum, mean, and maximum of the round-trip times will be written to
the standard error output.
minimum, mean, maximum, and standard deviation of the round-trip times
will be written to the standard output.
.Pp
This program is intended for use in network testing, measurement and
management.
@ -446,7 +626,7 @@ using the
.Fl p
option of
.Nm .
.Sh TTL DETAILS
.Sh IPv4 TTL DETAILS
The
.Tn TTL
value of an IP packet represents the maximum number of IP routers
@ -536,20 +716,74 @@ At least one response was heard from the specified
The transmission was successful but no responses were received.
.It any other value
An error occurred.
These values are defined in
.In sysexits.h .
.El
.Sh EXAMPLES
The following will send ICMPv6 echo request to
.Li dst.foo.com .
.Bd -literal -offset indent
ping -6 -n dst.foo.com
.Ed
.Pp
The following will probe hostnames for all nodes on the network link attached to
.Li wi0
interface.
The address
.Li ff02::1
is named the link-local all-node multicast address, and the packet would
reach every node on the network link.
.Bd -literal -offset indent
ping -6 -y ff02::1%wi0
.Ed
.Pp
The following will probe addresses assigned to the destination node,
.Li dst.foo.com .
.Bd -literal -offset indent
ping -6 -k agl dst.foo.com
.Ed
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr icmp 4 ,
.Xr icmp6 4 ,
.Xr inet6 4 ,
.Xr ip6 4 ,
.Xr ifconfig 8 ,
.Xr routed 8 ,
.Xr traceroute 8
.Xr traceroute6 8
.Rs
.%A A. Conta
.%A S. Deering
.%T "Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification"
.%N RFC 2463
.%D December 1998
.Re
.Rs
.%A Matt Crawford
.%T "IPv6 Node Information Queries"
.%N draft-ietf-ipngwg-icmp-name-lookups-09.txt
.%D May 2002
.%O work in progress material
.Re
.Sh HISTORY
The
.Nm
utility appeared in
.Bx 4.3 .
The
.Nm ping6
utility with IPv6 support first appeared in the WIDE Hydrangea IPv6
protocol stack kit.
.Pp
IPv6 and IPsec support based on the KAME Project
.Pq Pa http://www.kame.net/
stack was initially integrated into
.Fx 4.0 .
.Pp
The
.Nm ping6
utility was merged to
.Nm
in Google Summer of Code 2019.
.Sh AUTHORS
The original
.Nm
@ -558,7 +792,7 @@ utility was written by
while at the US Army Ballistics
Research Laboratory.
.Sh BUGS
Many Hosts and Gateways ignore the
Many Hosts and Gateways ignore the IPv4
.Tn RECORD_ROUTE
option.
.Pp

31
sbin/ping/ping.c
View File

@ -100,6 +100,8 @@ __FBSDID("$FreeBSD$");
#include <time.h>
#include <unistd.h>
#include "main.h"
#include "ping.h"
#include "utils.h"
#define INADDR_LEN ((int)sizeof(in_addr_t))
@ -225,10 +227,9 @@ static void pr_pack(char *, ssize_t, struct sockaddr_in *, struct timespec *);
static void pr_retip(struct ip *, const u_char *);
static void status(int);
static void stopit(int);
static void usage(void) __dead2;
int
main(int argc, char *const *argv)
ping(int argc, char *const *argv)
{
struct sockaddr_in from, sock_in;
struct in_addr ifaddr;
@ -301,7 +302,7 @@ main(int argc, char *const *argv)
outpack = outpackhdr + sizeof(struct ip);
while ((ch = getopt(argc, argv,
"AaC:c:DdfG:g:Hh:I:i:Ll:M:m:nop:QqRrS:s:T:t:vW:z:"
"4AaC:c:DdfG:g:Hh:I:i:Ll:M:m:nop:QqRrS:s:T:t:vW:z:"
#ifdef IPSEC
#ifdef IPSEC_POLICY_IPSEC
"P:"
@ -310,6 +311,9 @@ main(int argc, char *const *argv)
)) != -1)
{
switch(ch) {
case '4':
/* This option is processed in main(). */
break;
case 'A':
options |= F_MISSED;
break;
@ -1769,24 +1773,3 @@ capdns_setup(void)
#endif
return (capdnsloc);
}
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
#define SECOPT " [-P policy]"
#else
#define SECOPT ""
#endif
static void
usage(void)
{
(void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
"usage: ping [-AaDdfHnoQqRrv] [-C pcp] [-c count] [-G sweepmaxsize] [-g sweepminsize]",
" [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]",
" " SECOPT " [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]",
" [-W waittime] [-z tos] host",
" ping [-AaDdfHLnoQqRrv] [-C pcp] [-c count] [-I iface] [-i wait] [-l preload]",
" [-M mask | time] [-m ttl]" SECOPT " [-p pattern] [-S src_addr]",
" [-s packetsize] [-T ttl] [-t timeout] [-W waittime]",
" [-z tos] mcast-group");
exit(EX_USAGE);
}

36
sbin/ping/ping.h Normal file
View File

@ -0,0 +1,36 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef PING_H
#define PING_H 1
int ping(int argc, char *const *argv);
#endif

42
sbin/ping6/ping6.c → sbin/ping/ping6.c
View File

@ -142,6 +142,9 @@ __FBSDID("$FreeBSD$");
#include <md5.h>
#include "main.h"
#include "ping6.h"
struct tv32 {
u_int32_t tv32_sec;
u_int32_t tv32_nsec;
@ -265,7 +268,6 @@ static volatile sig_atomic_t seenint;
static volatile sig_atomic_t seeninfo;
#endif
int main(int, char *[]);
static cap_channel_t *capdns_setup(void);
static void fill(char *, char *);
static int get_hoplim(struct msghdr *);
@ -293,10 +295,9 @@ static void pr_retip(struct ip6_hdr *, u_char *);
static void summary(void);
static int setpolicy(int, char *);
static char *nigroup(char *, int);
static void usage(void);
int
main(int argc, char *argv[])
ping6(int argc, char *argv[])
{
struct timespec last, intvl;
struct sockaddr_in6 from, *sin6;
@ -354,9 +355,12 @@ main(int argc, char *argv[])
#endif /*IPSEC_POLICY_IPSEC*/
#endif
while ((ch = getopt(argc, argv,
"k:b:C:c:DdfHe:m:I:i:l:unNop:qaAS:s:OvyYW:t:z:" ADDOPTS)) != -1) {
"6k:b:C:c:DdfHe:m:I:i:l:unNop:qaAS:s:OvyYW:t:z:" ADDOPTS)) != -1) {
#undef ADDOPTS
switch (ch) {
case '6':
/* This option is processed in main(). */
break;
case 'k':
{
char *cp;
@ -2843,36 +2847,6 @@ nigroup(char *name, int nig_oldmcprefix)
return strdup(hbuf);
}
static void
usage(void)
{
(void)fprintf(stderr,
#if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
"Z"
#endif
"usage: ping6 [-"
"aADd"
#if defined(IPSEC) && !defined(IPSEC_POLICY_IPSEC)
"E"
#endif
"fHnNoOq"
#ifdef IPV6_USE_MIN_MTU
"u"
#endif
"vyY] "
"[-b bufsiz] [-c count] [-e gateway]\n"
" [-I interface] [-i wait] [-k addrtype] [-l preload] "
"[-m hoplimit]\n"
" [-p pattern]"
#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
" [-P policy]"
#endif
" [-S sourceaddr] [-s packetsize]\n"
" [-t timeout] [-W waittime] [-z tclass] [hops ...] "
"host\n");
exit(1);
}
static cap_channel_t *
capdns_setup(void)
{

36
sbin/ping/ping6.h Normal file
View File

@ -0,0 +1,36 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef PING6_H
#define PING6_H 1
int ping6(int argc, char *argv[]);
#endif

1
sbin/ping/tests/Makefile
View File

@ -7,5 +7,6 @@ PACKAGE= tests
ATF_TESTS_SH+= ping_test
${PACKAGE}FILES+= ping_c1_s56_t1.out
${PACKAGE}FILES+= ping_6_c1_s8_t1.out
.include <bsd.test.mk>

0
sbin/ping6/tests/ping6_c1_s8_t1.out → sbin/ping/tests/ping_6_c1_s8_t1.out
View File

17
sbin/ping/tests/ping_test.sh
View File

@ -36,12 +36,26 @@ ping_c1_s56_t1_body() {
atf_skip "IPv4 is not configured"
fi
atf_check -s exit:0 -o save:std.out -e empty \
ping -c 1 -s 56 -t 1 localhost
ping -4 -c 1 -s 56 -t 1 localhost
check_ping_statistics std.out $(atf_get_srcdir)/ping_c1_s56_t1.out
}
atf_test_case ping_6_c1_s8_t1
ping_6_c1_s8_t1_head() {
atf_set "descr" "Stop after receiving 1 ECHO_RESPONSE packet"
}
ping_6_c1_s8_t1_body() {
if ! getaddrinfo -f inet6 localhost 1>/dev/null 2>&1; then
atf_skip "IPv6 is not configured"
fi
atf_check -s exit:0 -o save:std.out -e empty \
ping -6 -c 1 -s 8 -t 1 localhost
check_ping_statistics std.out $(atf_get_srcdir)/ping_6_c1_s8_t1.out
}
atf_init_test_cases() {
atf_add_test_case ping_c1_s56_t1
atf_add_test_case ping_6_c1_s8_t1
}
check_ping_statistics() {
@ -50,6 +64,7 @@ check_ping_statistics() {
-e 's/localhost ([0-9]\{1,3\}\(\.[0-9]\{1,3\}\)\{1,3\})/localhost/' \
-e 's/from [0-9]\{1,3\}\(\.[0-9]\{1,3\}\)\{1,3\}/from/' \
-e 's/ttl=[0-9][0-9]*/ttl=/' \
-e 's/hlim=[0-9][0-9]*/hlim=/' \
"$1" >"$1".filtered
atf_check -s exit:0 diff -u "$1".filtered "$2"
}

27
sbin/ping6/Makefile
View File

@ -1,27 +0,0 @@
# $FreeBSD$
.include <src.opts.mk>
PACKAGE=runtime
PROG= ping6
MAN= ping6.8
CFLAGS+=-DIPSEC -DKAME_SCOPEID
BINOWN= root
BINMODE=4555
LIBADD= ipsec m md
.if ${MK_DYNAMICROOT} == "no"
.warning ${PROG} built without libcasper support
.elif ${MK_CASPER} != "no" && !defined(RESCUE)
LIBADD+= casper
LIBADD+= cap_dns
CFLAGS+=-DWITH_CASPER
.endif
HAS_TESTS=
SUBDIR.${MK_TESTS}+= tests
.include <bsd.prog.mk>

22
sbin/ping6/Makefile.depend
View File

@ -1,22 +0,0 @@
# $FreeBSD$
# Autogenerated - do NOT edit!
DIRDEPS = \
include \
include/arpa \
include/xlocale \
lib/${CSU_DIR} \
lib/libc \
lib/libcapsicum \
lib/libcompiler_rt \
lib/libipsec \
lib/libmd \
lib/libnv \
lib/msun \
.include <dirdeps.mk>
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
# local dependencies - needed for -jN in clean tree
.endif

567
sbin/ping6/ping6.8
View File

@ -1,567 +0,0 @@
.\" $KAME: ping6.8,v 1.58 2003/06/20 12:00:22 itojun Exp $
.\"
.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
.\" 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 project 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 PROJECT 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 PROJECT 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.
.\"
.\" $FreeBSD$
.\"
.Dd October 2, 2020
.Dt PING6 8
.Os
.Sh NAME
.Nm ping6
.Nd send
.Tn ICMPv6 ECHO_REQUEST
packets to network hosts
.Sh SYNOPSIS
.Nm
.\" without ipsec, or new ipsec
.Op Fl aAdDfHnNoOquvyY
.\" old ipsec
.\" .Op Fl ADdEfmnNqRtvwW
.Bk -words
.Op Fl b Ar bufsiz
.Ek
.Bk -words
.Op Fl C Ar pcp
.Ek
.Bk -words
.Op Fl c Ar count
.Ek
.Bk -words
.Op Fl e Ar gateway
.Ek
.Bk -words
.Op Fl I Ar interface
.Ek
.Bk -words
.Op Fl i Ar wait
.Ek
.Bk -words
.Op Fl k Ar addrtype
.Ek
.Bk -words
.Op Fl l Ar preload
.Ek
.Bk -words
.Op Fl m Ar hoplimit
.Ek
.Bk -words
.\" new ipsec
.Op Fl P Ar policy
.Ek
.Bk -words
.Op Fl p Ar pattern
.Ek
.Bk -words
.Op Fl S Ar sourceaddr
.Ek
.Bk -words
.Op Fl s Ar packetsize
.Ek
.Bk -words
.Op Fl t Ar timeout
.Ek
.Bk -words
.Op Fl W Ar waittime
.Ek
.Bk -words
.Op Fl z Ar tclass
.Ek
.Bk -words
.Op Ar hops ...
.Ek
.Bk -words
.Ar host
.Ek
.Sh DESCRIPTION
The
.Nm
utility uses the
.Tn ICMPv6
protocol's mandatory
.Tn ICMP6_ECHO_REQUEST
datagram to elicit an
.Tn ICMP6_ECHO_REPLY
from a host or gateway.
.Tn ICMP6_ECHO_REQUEST
datagrams (``pings'') have an IPv6 header,
and
.Tn ICMPv6
header formatted as documented in RFC2463.
The options are as follows:
.Bl -tag -width Ds
.\" old ipsec
.\" .It Fl Z
.\" Enables transport-mode IPsec authentication header
.\" (experimental).
.It Fl k Ar addrtype
Generate ICMPv6 Node Information Node Addresses query, rather than echo-request.
.Ar addrtype
must be a string constructed of the following characters.
.Bl -tag -width Ds -compact
.It Ic a
requests unicast addresses from all of the responder's interfaces.
If the character is omitted,
only those addresses which belong to the interface which has the
responder's address are requests.
.It Ic c
requests responder's IPv4-compatible and IPv4-mapped addresses.
.It Ic g
requests responder's global-scope addresses.
.It Ic s
requests responder's site-local addresses.
.It Ic l
requests responder's link-local addresses.
.It Ic A
requests responder's anycast addresses.
Without this character, the responder will return unicast addresses only.
With this character, the responder will return anycast addresses only.
Note that the specification does not specify how to get responder's
anycast addresses.
This is an experimental option.
.El
.It Fl b Ar bufsiz
Set socket buffer size.
.It Fl C Ar pcp
Add an 802.1p Ethernet Priority Code Point when sending a packet.
0..7 uses that specific PCP, -1 uses the interface default PCP (or none).
.It Fl c Ar count
Stop after sending
(and receiving)
.Ar count
.Tn ECHO_RESPONSE
packets.
.It Fl D
Disable IPv6 fragmentation.
.It Fl d
Set the
.Dv SO_DEBUG
option on the socket being used.
.\" .It Fl E
.\" Enables transport-mode IPsec encapsulated security payload
.\" (experimental).
.It Fl f
Flood ping.
Outputs packets as fast as they come back or one hundred times per second,
whichever is more.
For every
.Tn ECHO_REQUEST
sent a period
.Dq \&.
is printed, while for every
.Tn ECHO_REPLY
received a backspace is printed.
This provides a rapid display of how many packets are being dropped.
Only the super-user may use this option.
.Bf -emphasis
This can be very hard on a network and should be used with caution.
.Ef
.It Fl e Ar gateway
Specifies to use
.Ar gateway
as the next hop to the destination.
The gateway must be a neighbor of the sending node.
.It Fl H
Specifies to try reverse-lookup of IPv6 addresses.
The
.Nm
utility does not try reverse-lookup unless the option is specified.
.It Fl m Ar hoplimit
Set the IPv6 hoplimit.
.It Fl I Ar interface
Source packets with the given interface address.
This flag applies if the ping destination is a multicast address,
or link-local/site-local unicast address.
.It Fl i Ar wait
Wait
.Ar wait
seconds
.Em between sending each packet .
The default is to wait for one second between each packet.
This option is incompatible with the
.Fl f
option.
.It Fl W Ar waittime
Time in milliseconds to wait for a reply for each packet sent.
If a reply arrives later,
the packet is not printed as replied,
but considered as replied when calculating statistics.
.It Fl t Ar timeout
Specify a timeout,
in seconds,
before ping exits regardless of how many packets have been received.
.It Fl l Ar preload
If
.Ar preload
is specified,
.Nm
sends that many packets as fast as possible before falling into its normal
mode of behavior.
Only the super-user may use this option.
.It Fl u
By default,
.Nm
asks the kernel to fragment packets to fit into the minimum IPv6 MTU.
The
.Fl u
option
will suppress the behavior in the following two levels:
when the option is specified once, the behavior will be disabled for
unicast packets.
When the option is more than once, it will be disabled for both
unicast and multicast packets.
.It Fl n
Numeric output only.
No attempt will be made to lookup symbolic names from addresses in the reply.
.It Fl N
Probe node information multicast group address
.Pq Li ff02::2:ffxx:xxxx .
.Ar host
must be string hostname of the target
(must not be a numeric IPv6 address).
Node information multicast group will be computed based on given
.Ar host ,
and will be used as the final destination.
Since node information multicast group is a link-local multicast group,
outgoing interface needs to be specified by
.Fl I
option.
.Pp
When specified twice, the address
.Pq Li ff02::2:xxxx:xxxx
is used instead.
The former is in RFC 4620, the latter is in an old Internet Draft
draft-ietf-ipngwg-icmp-name-lookup.
Note that KAME-derived implementations including
.Fx
use the latter.
.It Fl o
Exit successfully after receiving one reply packet.
.It Fl p Ar pattern
You may specify up to 16
.Dq pad
bytes to fill out the packet you send.
This is useful for diagnosing data-dependent problems in a network.
For example,
.Dq Li \-p ff
will cause the sent packet to be filled with all
ones.
.\" new ipsec
.It Fl P Ar policy
.Ar policy
specifies IPsec policy to be used for the probe.
.It Fl q
Quiet output.
Nothing is displayed except the summary lines at startup time and
when finished.
.It Fl a
Audible.
Include a bell
.Tn ( ASCII
0x07)
character in the output when any packet is received.
.It Fl A
Audible.
Output a bell
.Tn ( ASCII
0x07)
character when no packet is received before the next packet
is transmitted.
To cater for round-trip times that are longer than the interval
between transmissions, further missing packets cause a bell only
if the maximum number of unreceived packets has increased.
.It Fl S Ar sourceaddr
Specifies the source address of request packets.
The source address must be one of the unicast addresses of the sending node,
and must be numeric.
.It Fl s Ar packetsize
Specifies the number of data bytes to be sent.
The default is 56, which translates into 64
.Tn ICMP
data bytes when combined
with the 8 bytes of
.Tn ICMP
header data.
You may need to specify
.Fl b
as well to extend socket buffer size.
.It Fl O
Generate ICMPv6 Node Information supported query types query,
rather than echo-request.
.Fl s
has no effect if
.Fl O
is specified.
.It Fl v
Verbose output.
.Tn ICMP
packets other than
.Tn ECHO_RESPONSE
that are received are listed.
.It Fl y
Generate ICMPv6 Node Information DNS Name query, rather than echo-request.
.Fl s
has no effect if
.Fl y
is specified.
.It Fl Y
Same as
.Fl y ,
but with old packet format based on 03 draft.
This option is present for backward compatibility.
.Fl s
has no effect if
.Fl y
is specified.
.It Fl z Ar tclass
Use the specified traffic class when sending.
.It Ar hops
IPv6 addresses for intermediate nodes,
which will be put into type 0 routing header.
.It Ar host
IPv6 address of the final destination node.
.El
.Pp
When using
.Nm
for fault isolation, it should first be run on the local host, to verify
that the local network interface is up and running.
Then, hosts and gateways further and further away should be
.Dq pinged .
Round-trip times and packet loss statistics are computed.
If duplicate packets are received, they are not included in the packet
loss calculation, although the round trip time of these packets is used
in calculating the round-trip time statistics.
When the specified number of packets have been sent
(and received)
or if the program is terminated with a
.Dv SIGINT ,
a brief summary is displayed, showing the number of packets sent and
received, and the minimum, mean, maximum, and standard deviation of
the round-trip times.
.Pp
If
.Nm
receives a
.Dv SIGINFO
(see the
.Cm status
argument for
.Xr stty 1 )
signal, the current number of packets sent and received, and the
minimum, mean, maximum, and standard deviation of the round-trip times
will be written to the standard output in the same format as the
standard completion message.
.Pp
This program is intended for use in network testing, measurement and
management.
Because of the load it can impose on the network, it is unwise to use
.Nm
during normal operations or from automated scripts.
.\" .Sh ICMP PACKET DETAILS
.\" An IP header without options is 20 bytes.
.\" An
.\" .Tn ICMP
.\" .Tn ECHO_REQUEST
.\" packet contains an additional 8 bytes worth of
.\" .Tn ICMP
.\" header followed by an arbitrary amount of data.
.\" When a
.\" .Ar packetsize
.\" is given, this indicated the size of this extra piece of data
.\" (the default is 56).
.\" Thus the amount of data received inside of an IP packet of type
.\" .Tn ICMP
.\" .Tn ECHO_REPLY
.\" will always be 8 bytes more than the requested data space
.\" (the
.\" .Tn ICMP
.\" header).
.\" .Pp
.\" If the data space is at least eight bytes large,
.\" .Nm
.\" uses the first eight bytes of this space to include a timestamp which
.\" it uses in the computation of round trip times.
.\" If less than eight bytes of pad are specified, no round trip times are
.\" given.
.Sh DUPLICATE AND DAMAGED PACKETS
The
.Nm
utility will report duplicate and damaged packets.
Duplicate packets should never occur when pinging a unicast address,
and seem to be caused by
inappropriate link-level retransmissions.
Duplicates may occur in many situations and are rarely
(if ever)
a good sign, although the presence of low levels of duplicates may not
always be cause for alarm.
Duplicates are expected when pinging a broadcast or multicast address,
since they are not really duplicates but replies from different hosts
to the same request.
.Pp
Damaged packets are obviously serious cause for alarm and often
indicate broken hardware somewhere in the
.Nm
packet's path
(in the network or in the hosts).
.Sh TRYING DIFFERENT DATA PATTERNS
The
(inter)network
layer should never treat packets differently depending on the data
contained in the data portion.
Unfortunately, data-dependent problems have been known to sneak into
networks and remain undetected for long periods of time.
In many cases the particular pattern that will have problems is something
that does not have sufficient
.Dq transitions ,
such as all ones or all zeros, or a pattern right at the edge, such as
almost all zeros.
It is not
necessarily enough to specify a data pattern of all zeros (for example)
on the command line because the pattern that is of interest is
at the data link level, and the relationship between what you type and
what the controllers transmit can be complicated.
.Pp
This means that if you have a data-dependent problem you will probably
have to do a lot of testing to find it.
If you are lucky, you may manage to find a file that either
cannot
be sent across your network or that takes much longer to transfer than
other similar length files.
You can then examine this file for repeated patterns that you can test
using the
.Fl p
option of
.Nm .
.Sh EXIT STATUS
The
.Nm
utility returns 0 on success (the host is alive),
2 if the transmission was successful but no responses were received,
any other non-zero value if the arguments are incorrect or
another error has occurred.
.Sh EXAMPLES
Normally,
.Nm
works just like
.Xr ping 8
would work; the following will send ICMPv6 echo request to
.Li dst.foo.com .
.Bd -literal -offset indent
ping6 -n dst.foo.com
.Ed
.Pp
The following will probe hostnames for all nodes on the network link attached to
.Li wi0
interface.
The address
.Li ff02::1
is named the link-local all-node multicast address, and the packet would
reach every node on the network link.
.Bd -literal -offset indent
ping6 -y ff02::1%wi0
.Ed
.Pp
The following will probe addresses assigned to the destination node,
.Li dst.foo.com .
.Bd -literal -offset indent
ping6 -k agl dst.foo.com
.Ed
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr icmp6 4 ,
.Xr inet6 4 ,
.Xr ip6 4 ,
.Xr ifconfig 8 ,
.Xr ping 8 ,
.Xr routed 8 ,
.Xr traceroute 8 ,
.Xr traceroute6 8
.Rs
.%A A. Conta
.%A S. Deering
.%T "Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification"
.%N RFC2463
.%D December 1998
.Re
.Rs
.%A Matt Crawford
.%T "IPv6 Node Information Queries"
.%N draft-ietf-ipngwg-icmp-name-lookups-09.txt
.%D May 2002
.%O work in progress material
.Re
.Sh HISTORY
The
.Xr ping 8
utility appeared in
.Bx 4.3 .
The
.Nm
utility with IPv6 support first appeared in the WIDE Hydrangea IPv6
protocol stack kit.
.Pp
IPv6 and IPsec support based on the KAME Project
.Pq Pa http://www.kame.net/
stack was initially integrated into
.Fx 4.0 .
.Sh BUGS
The
.Nm
utility
is intentionally separate from
.Xr ping 8 .
.Pp
There have been many discussions on why we separate
.Nm
and
.Xr ping 8 .
Some people argued that it would be more convenient to uniform the
ping command for both IPv4 and IPv6.
The followings are an answer to the request.
.Pp
From a developer's point of view:
since the underling raw sockets API is totally different between IPv4
and IPv6, we would end up having two types of code base.
There would actually be less benefit to uniform the two commands
into a single command from the developer's standpoint.
.Pp
From an operator's point of view: unlike ordinary network applications
like remote login tools, we are usually aware of address family when using
network management tools.
We do not just want to know the reachability to the host, but want to know the
reachability to the host via a particular network protocol such as
IPv6.
Thus, even if we had a unified
.Xr ping 8
command for both IPv4 and IPv6, we would usually type a
.Fl 6
or
.Fl 4
option (or something like those) to specify the particular address family.
This essentially means that we have two different commands.

8
sbin/ping6/tests/Makefile
View File

@ -1,8 +0,0 @@
# $FreeBSD$
PACKAGE= tests
ATF_TESTS_SH+= ping6_test
${PACKAGE}FILES+= ping6_c1_s8_t1.out
.include <bsd.test.mk>

53
sbin/ping6/tests/ping6_test.sh
View File

@ -1,53 +0,0 @@
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright (C) 2019 Jan Sucan <jansucan@FreeBSD.org>
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
atf_test_case ping6_c1_s8_t1
ping6_c1_s8_t1_head() {
atf_set "descr" "Stop after receiving 1 ECHO_RESPONSE packet"
}
ping6_c1_s8_t1_body() {
if ! getaddrinfo -f inet6 localhost 1>/dev/null 2>&1; then
atf_skip "IPv6 is not configured"
fi
atf_check -s exit:0 -o save:std.out -e empty \
ping6 -c 1 -s 8 -t 1 localhost
check_ping_statistics std.out $(atf_get_srcdir)/ping6_c1_s8_t1.out
}
atf_init_test_cases() {
atf_add_test_case ping6_c1_s8_t1
}
check_ping_statistics() {
sed -e 's/0.[0-9]\{3\}//g' \
-e 's/[1-9][0-9]*.[0-9]\{3\}//g' \
-e 's/hlim=[0-9][0-9]*/hlim=/' \
"$1" >"$1".filtered
atf_check -s exit:0 diff -u "$1".filtered "$2"
}

3
tools/build/mk/OptionalObsoleteFiles.inc
View File

@ -2583,7 +2583,6 @@ OLD_DIRS+=usr/share/i18n/csmapper/GB
.endif
.if ${MK_INET6} == no
OLD_FILES+=sbin/ping6
OLD_FILES+=sbin/rtsol
OLD_FILES+=usr/sbin/ip6addrctl
OLD_FILES+=usr/sbin/mld6query
@ -2601,7 +2600,6 @@ OLD_FILES+=usr/share/man/man5/rtadvd.conf.5.gz
OLD_FILES+=usr/share/man/man8/ip6addrctl.8.gz
OLD_FILES+=usr/share/man/man8/mld6query.8.gz
OLD_FILES+=usr/share/man/man8/ndp.8.gz
OLD_FILES+=usr/share/man/man8/ping6.8.gz
OLD_FILES+=usr/share/man/man8/rip6query.8.gz
OLD_FILES+=usr/share/man/man8/route6d.8.gz
OLD_FILES+=usr/share/man/man8/rrenumd.8.gz
@ -2613,7 +2611,6 @@ OLD_FILES+=usr/share/man/man8/traceroute6.8.gz
.endif
.if ${MK_INET6_SUPPORT} == no
OLD_FILES+=rescue/ping6
OLD_FILES+=rescue/rtsol
.endif