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Index: head/ObsoleteFiles.inc
===================================================================
--- head/ObsoleteFiles.inc
+++ head/ObsoleteFiles.inc
@@ -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
Index: head/UPDATING
===================================================================
--- head/UPDATING
+++ head/UPDATING
@@ -26,6 +26,10 @@
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
Index: head/etc/mtree/BSD.tests.dist
===================================================================
--- head/etc/mtree/BSD.tests.dist
+++ head/etc/mtree/BSD.tests.dist
@@ -448,8 +448,6 @@
..
ping
..
- ping6
- ..
route
..
..
Index: head/rescue/rescue/Makefile
===================================================================
--- head/rescue/rescue/Makefile
+++ head/rescue/rescue/Makefile
@@ -103,7 +103,6 @@
.endif
.if ${MK_INET6_SUPPORT} != "no"
-CRUNCH_PROGS_sbin+= ping6
CRUNCH_PROGS_sbin+= rtsol
.endif
Index: head/sbin/Makefile
===================================================================
--- head/sbin/Makefile
+++ head/sbin/Makefile
@@ -73,7 +73,6 @@
SUBDIR.${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
Index: head/sbin/ping/Makefile
===================================================================
--- head/sbin/ping/Makefile
+++ head/sbin/ping/Makefile
@@ -5,11 +5,17 @@
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
Index: head/sbin/ping/main.h
===================================================================
--- head/sbin/ping/main.h
+++ head/sbin/ping/main.h
@@ -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
Index: head/sbin/ping/main.c
===================================================================
--- head/sbin/ping/main.c
+++ head/sbin/ping/main.c
@@ -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);
+}
Index: head/sbin/ping/ping.h
===================================================================
--- head/sbin/ping/ping.h
+++ head/sbin/ping/ping.h
@@ -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
Index: head/sbin/ping/ping.8
===================================================================
--- head/sbin/ping/ping.8
+++ head/sbin/ping/ping.8
@@ -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 @@
.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 @@
.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 @@
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 @@
.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 @@
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 @@
.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 @@
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 @@
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 @@
.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 @@
.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
@@ -299,44 +400,123 @@
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
.Nm
for fault isolation, it should first be run on the local host, to verify
@@ -364,8 +544,8 @@
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 @@
.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 @@
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 @@
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
Index: head/sbin/ping/ping.c
===================================================================
--- head/sbin/ping/ping.c
+++ head/sbin/ping/ping.c
@@ -100,6 +100,8 @@
#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_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 @@
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 @@
)) != -1)
{
switch(ch) {
+ case '4':
+ /* This option is processed in main(). */
+ break;
case 'A':
options |= F_MISSED;
break;
@@ -1768,25 +1772,4 @@
err(1, "unable to limit access to system.dns service");
#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);
}
Index: head/sbin/ping/ping6.h
===================================================================
--- head/sbin/ping/ping6.h
+++ head/sbin/ping/ping6.h
@@ -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
Index: head/sbin/ping/ping6.c
===================================================================
--- head/sbin/ping/ping6.c
+++ head/sbin/ping/ping6.c
@@ -0,0 +1,2876 @@
+/* $KAME: ping6.c,v 1.169 2003/07/25 06:01:47 itojun Exp $ */
+
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * 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.
+ */
+
+/* BSDI ping.c,v 2.3 1996/01/21 17:56:50 jch Exp */
+
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Mike Muuss.
+ *
+ * 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.
+ */
+
+#if 0
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1989, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
+#endif /* not lint */
+#endif
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
+ * measure round-trip-delays and packet loss across network paths.
+ *
+ * Author -
+ * Mike Muuss
+ * U. S. Army Ballistic Research Laboratory
+ * December, 1983
+ *
+ * Status -
+ * Public Domain. Distribution Unlimited.
+ * Bugs -
+ * More statistics could always be gathered.
+ * This program has to run SUID to ROOT to access the ICMP socket.
+ */
+/*
+ * NOTE:
+ * USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
+ * as IPV6_PKTINFO. Some people object it (sin6_scope_id specifies *link*
+ * while IPV6_PKTINFO specifies *interface*. Link is defined as collection of
+ * network attached to 1 or more interfaces)
+ */
+
+#include <sys/param.h>
+#include <sys/capsicum.h>
+#include <sys/uio.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <net/route.h>
+
+#include <netinet/in.h>
+#include <netinet/ip6.h>
+#include <netinet/icmp6.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <netdb.h>
+
+#include <capsicum_helpers.h>
+#include <casper/cap_dns.h>
+#include <libcasper.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <time.h>
+#include <unistd.h>
+
+#ifdef IPSEC
+#include <netipsec/ah.h>
+#include <netipsec/ipsec.h>
+#endif
+
+#include <md5.h>
+
+#include "main.h"
+#include "ping6.h"
+
+struct tv32 {
+ u_int32_t tv32_sec;
+ u_int32_t tv32_nsec;
+};
+
+#define MAXPACKETLEN 131072
+#define IP6LEN 40
+#define ICMP6ECHOLEN 8 /* icmp echo header len excluding time */
+#define ICMP6ECHOTMLEN sizeof(struct tv32)
+#define ICMP6_NIQLEN (ICMP6ECHOLEN + 8)
+# define CONTROLLEN 10240 /* ancillary data buffer size RFC3542 20.1 */
+/* FQDN case, 64 bits of nonce + 32 bits ttl */
+#define ICMP6_NIRLEN (ICMP6ECHOLEN + 12)
+#define EXTRA 256 /* for AH and various other headers. weird. */
+#define DEFDATALEN ICMP6ECHOTMLEN
+#define MAXDATALEN MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
+#define NROUTES 9 /* number of record route slots */
+#define MAXWAIT 10000 /* max ms to wait for response */
+#define MAXALARM (60 * 60) /* max seconds for alarm timeout */
+
+#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
+#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
+#define SET(bit) (A(bit) |= B(bit))
+#define CLR(bit) (A(bit) &= (~B(bit)))
+#define TST(bit) (A(bit) & B(bit))
+
+#define F_FLOOD 0x0001
+#define F_INTERVAL 0x0002
+#define F_PINGFILLED 0x0008
+#define F_QUIET 0x0010
+#define F_RROUTE 0x0020
+#define F_SO_DEBUG 0x0040
+#define F_VERBOSE 0x0100
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+#define F_POLICY 0x0400
+#else
+#define F_AUTHHDR 0x0200
+#define F_ENCRYPT 0x0400
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+#define F_NODEADDR 0x0800
+#define F_FQDN 0x1000
+#define F_INTERFACE 0x2000
+#define F_SRCADDR 0x4000
+#define F_HOSTNAME 0x10000
+#define F_FQDNOLD 0x20000
+#define F_NIGROUP 0x40000
+#define F_SUPTYPES 0x80000
+#define F_NOMINMTU 0x100000
+#define F_ONCE 0x200000
+#define F_AUDIBLE 0x400000
+#define F_MISSED 0x800000
+#define F_DONTFRAG 0x1000000
+#define F_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
+#define F_WAITTIME 0x2000000
+static u_int options;
+
+#define IN6LEN sizeof(struct in6_addr)
+#define SA6LEN sizeof(struct sockaddr_in6)
+#define DUMMY_PORT 10101
+
+#define SIN6(s) ((struct sockaddr_in6 *)(s))
+
+/*
+ * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
+ * number of received sequence numbers we can keep track of. Change 128
+ * to 8192 for complete accuracy...
+ */
+#define MAX_DUP_CHK (8 * 8192)
+static int mx_dup_ck = MAX_DUP_CHK;
+static char rcvd_tbl[MAX_DUP_CHK / 8];
+
+static struct sockaddr_in6 dst; /* who to ping6 */
+static struct sockaddr_in6 src; /* src addr of this packet */
+static socklen_t srclen;
+static size_t datalen = DEFDATALEN;
+static int ssend; /* send socket file descriptor */
+static int srecv; /* receive socket file descriptor */
+static u_char outpack[MAXPACKETLEN];
+static char BSPACE = '\b'; /* characters written for flood */
+static char BBELL = '\a'; /* characters written for AUDIBLE */
+static char DOT = '.';
+static char *hostname;
+static int ident; /* process id to identify our packets */
+static u_int8_t nonce[8]; /* nonce field for node information */
+static int hoplimit = -1; /* hoplimit */
+static int tclass = -1; /* traffic class */
+static int pcp = -2; /* vlan priority code point */
+static u_char *packet = NULL;
+static cap_channel_t *capdns;
+
+/* counters */
+static long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
+static long npackets; /* max packets to transmit */
+static long nreceived; /* # of packets we got back */
+static long nrepeats; /* number of duplicates */
+static long ntransmitted; /* sequence # for outbound packets = #sent */
+static long ntransmitfailures; /* number of transmit failures */
+static int interval = 1000; /* interval between packets in ms */
+static int waittime = MAXWAIT; /* timeout for each packet */
+static long nrcvtimeout = 0; /* # of packets we got back after waittime */
+
+/* timing */
+static int timing; /* flag to do timing */
+static double tmin = 999999999.0; /* minimum round trip time */
+static double tmax = 0.0; /* maximum round trip time */
+static double tsum = 0.0; /* sum of all times, for doing average */
+static double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
+
+/* for node addresses */
+static u_short naflags;
+
+/* for ancillary data(advanced API) */
+static struct msghdr smsghdr;
+static struct iovec smsgiov;
+static char *scmsg = 0;
+
+static volatile sig_atomic_t seenint;
+#ifdef SIGINFO
+static volatile sig_atomic_t seeninfo;
+#endif
+
+static cap_channel_t *capdns_setup(void);
+static void fill(char *, char *);
+static int get_hoplim(struct msghdr *);
+static int get_pathmtu(struct msghdr *);
+static struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
+static void onsignal(int);
+static void onint(int);
+static size_t pingerlen(void);
+static int pinger(void);
+static const char *pr_addr(struct sockaddr *, int);
+static void pr_icmph(struct icmp6_hdr *, u_char *);
+static void pr_iph(struct ip6_hdr *);
+static void pr_suptypes(struct icmp6_nodeinfo *, size_t);
+static void pr_nodeaddr(struct icmp6_nodeinfo *, int);
+static int myechoreply(const struct icmp6_hdr *);
+static int mynireply(const struct icmp6_nodeinfo *);
+static const char *dnsdecode(const u_char *, const u_char *, const u_char *,
+ char *, size_t);
+static void pr_pack(u_char *, int, struct msghdr *);
+static void pr_exthdrs(struct msghdr *);
+static void pr_ip6opt(void *, size_t);
+static void pr_rthdr(void *, size_t);
+static int pr_bitrange(u_int32_t, int, int);
+static void pr_retip(struct ip6_hdr *, u_char *);
+static void summary(void);
+static int setpolicy(int, char *);
+static char *nigroup(char *, int);
+
+int
+ping6(int argc, char *argv[])
+{
+ struct timespec last, intvl;
+ struct sockaddr_in6 from, *sin6;
+ struct addrinfo hints, *res;
+ struct sigaction si_sa;
+ int cc, i;
+ int almost_done, ch, hold, packlen, preload, optval, error;
+ int nig_oldmcprefix = -1;
+ u_char *datap;
+ char *e, *target, *ifname = NULL, *gateway = NULL;
+ int ip6optlen = 0;
+ struct cmsghdr *scmsgp = NULL;
+ /* For control (ancillary) data received from recvmsg() */
+ u_char cm[CONTROLLEN];
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+ u_long lsockbufsize;
+ int sockbufsize = 0;
+#endif
+ int usepktinfo = 0;
+ struct in6_pktinfo pktinfo;
+ char *cmsg_pktinfo = NULL;
+ struct ip6_rthdr *rthdr = NULL;
+#ifdef IPSEC_POLICY_IPSEC
+ char *policy_in = NULL;
+ char *policy_out = NULL;
+#endif
+ double t;
+ u_long alarmtimeout;
+ size_t rthlen;
+#ifdef IPV6_USE_MIN_MTU
+ int mflag = 0;
+#endif
+ cap_rights_t rights_srecv;
+ cap_rights_t rights_ssend;
+ cap_rights_t rights_stdin;
+
+ /* just to be sure */
+ memset(&smsghdr, 0, sizeof(smsghdr));
+ memset(&smsgiov, 0, sizeof(smsgiov));
+ memset(&pktinfo, 0, sizeof(pktinfo));
+
+ intvl.tv_sec = interval / 1000;
+ intvl.tv_nsec = interval % 1000 * 1000000;
+
+ alarmtimeout = preload = 0;
+ datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
+ capdns = capdns_setup();
+#ifndef IPSEC
+#define ADDOPTS
+#else
+#ifdef IPSEC_POLICY_IPSEC
+#define ADDOPTS "P:"
+#else
+#define ADDOPTS "ZE"
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif
+ while ((ch = getopt(argc, argv,
+ "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;
+
+ options &= ~F_NOUSERDATA;
+ options |= F_NODEADDR;
+ for (cp = optarg; *cp != '\0'; cp++) {
+ switch (*cp) {
+ case 'a':
+ naflags |= NI_NODEADDR_FLAG_ALL;
+ break;
+ case 'c':
+ case 'C':
+ naflags |= NI_NODEADDR_FLAG_COMPAT;
+ break;
+ case 'l':
+ case 'L':
+ naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
+ break;
+ case 's':
+ case 'S':
+ naflags |= NI_NODEADDR_FLAG_SITELOCAL;
+ break;
+ case 'g':
+ case 'G':
+ naflags |= NI_NODEADDR_FLAG_GLOBAL;
+ break;
+ case 'A': /* experimental. not in the spec */
+#ifdef NI_NODEADDR_FLAG_ANYCAST
+ naflags |= NI_NODEADDR_FLAG_ANYCAST;
+ break;
+#else
+ errx(1,
+"-a A is not supported on the platform");
+ /*NOTREACHED*/
+#endif
+ default:
+ usage();
+ /*NOTREACHED*/
+ }
+ }
+ break;
+ }
+ case 'b':
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+ errno = 0;
+ e = NULL;
+ lsockbufsize = strtoul(optarg, &e, 10);
+ sockbufsize = (int)lsockbufsize;
+ if (errno || !*optarg || *e ||
+ lsockbufsize > INT_MAX)
+ errx(1, "invalid socket buffer size");
+#else
+ errx(1,
+"-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
+#endif
+ break;
+ case 'C': /* vlan priority code point */
+ pcp = strtol(optarg, &e, 10);
+ if (*optarg == '\0' || *e != '\0')
+ errx(1, "illegal vlan pcp %s", optarg);
+ if (7 < pcp || pcp < -1)
+ errx(1, "illegal vlan pcp -- %s", optarg);
+ break;
+ case 'c':
+ npackets = strtol(optarg, &e, 10);
+ if (npackets <= 0 || *optarg == '\0' || *e != '\0')
+ errx(1,
+ "illegal number of packets -- %s", optarg);
+ break;
+ case 'D':
+ options |= F_DONTFRAG;
+ break;
+ case 'd':
+ options |= F_SO_DEBUG;
+ break;
+ case 'f':
+ if (getuid()) {
+ errno = EPERM;
+ errx(1, "Must be superuser to flood ping");
+ }
+ options |= F_FLOOD;
+ setbuf(stdout, (char *)NULL);
+ break;
+ case 'e':
+ gateway = optarg;
+ break;
+ case 'H':
+ options |= F_HOSTNAME;
+ break;
+ case 'm': /* hoplimit */
+ hoplimit = strtol(optarg, &e, 10);
+ if (*optarg == '\0' || *e != '\0')
+ errx(1, "illegal hoplimit %s", optarg);
+ if (255 < hoplimit || hoplimit < -1)
+ errx(1,
+ "illegal hoplimit -- %s", optarg);
+ break;
+ case 'I':
+ ifname = optarg;
+ options |= F_INTERFACE;
+#ifndef USE_SIN6_SCOPE_ID
+ usepktinfo++;
+#endif
+ break;
+ case 'i': /* wait between sending packets */
+ t = strtod(optarg, &e);
+ if (*optarg == '\0' || *e != '\0')
+ errx(1, "illegal timing interval %s", optarg);
+ if (t < 1 && getuid()) {
+ errx(1, "%s: only root may use interval < 1s",
+ strerror(EPERM));
+ }
+ intvl.tv_sec = (time_t)t;
+ intvl.tv_nsec =
+ (long)((t - intvl.tv_sec) * 1000000000);
+ if (intvl.tv_sec < 0)
+ errx(1, "illegal timing interval %s", optarg);
+ /* less than 1/hz does not make sense */
+ if (intvl.tv_sec == 0 && intvl.tv_nsec < 1000) {
+ warnx("too small interval, raised to .000001");
+ intvl.tv_nsec = 1000;
+ }
+ options |= F_INTERVAL;
+ break;
+ case 'l':
+ if (getuid()) {
+ errno = EPERM;
+ errx(1, "Must be superuser to preload");
+ }
+ preload = strtol(optarg, &e, 10);
+ if (preload < 0 || *optarg == '\0' || *e != '\0')
+ errx(1, "illegal preload value -- %s", optarg);
+ break;
+ case 'u':
+#ifdef IPV6_USE_MIN_MTU
+ mflag++;
+ break;
+#else
+ errx(1, "-%c is not supported on this platform", ch);
+ /*NOTREACHED*/
+#endif
+ case 'n':
+ options &= ~F_HOSTNAME;
+ break;
+ case 'N':
+ options |= F_NIGROUP;
+ nig_oldmcprefix++;
+ break;
+ case 'o':
+ options |= F_ONCE;
+ break;
+ case 'p': /* fill buffer with user pattern */
+ options |= F_PINGFILLED;
+ fill((char *)datap, optarg);
+ break;
+ case 'q':
+ options |= F_QUIET;
+ break;
+ case 'a':
+ options |= F_AUDIBLE;
+ break;
+ case 'A':
+ options |= F_MISSED;
+ break;
+ case 'S':
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
+ hints.ai_family = AF_INET6;
+ hints.ai_socktype = SOCK_RAW;
+ hints.ai_protocol = IPPROTO_ICMPV6;
+
+ error = cap_getaddrinfo(capdns, optarg, NULL, &hints, &res);
+ if (error) {
+ errx(1, "invalid source address: %s",
+ gai_strerror(error));
+ }
+ /*
+ * res->ai_family must be AF_INET6 and res->ai_addrlen
+ * must be sizeof(src).
+ */
+ memcpy(&src, res->ai_addr, res->ai_addrlen);
+ srclen = res->ai_addrlen;
+ freeaddrinfo(res);
+ options |= F_SRCADDR;
+ break;
+ case 's': /* size of packet to send */
+ datalen = strtol(optarg, &e, 10);
+ if (datalen <= 0 || *optarg == '\0' || *e != '\0')
+ errx(1, "illegal datalen value -- %s", optarg);
+ if (datalen > MAXDATALEN) {
+ errx(1,
+ "datalen value too large, maximum is %d",
+ MAXDATALEN);
+ }
+ break;
+ case 'O':
+ options &= ~F_NOUSERDATA;
+ options |= F_SUPTYPES;
+ break;
+ case 'v':
+ options |= F_VERBOSE;
+ break;
+ case 'y':
+ options &= ~F_NOUSERDATA;
+ options |= F_FQDN;
+ break;
+ case 'Y':
+ options &= ~F_NOUSERDATA;
+ options |= F_FQDNOLD;
+ break;
+ case 'W':
+ t = strtod(optarg, &e);
+ if (*e || e == optarg || t > (double)INT_MAX)
+ err(EX_USAGE, "invalid timing interval: `%s'",
+ optarg);
+ options |= F_WAITTIME;
+ waittime = (int)t;
+ break;
+ case 't':
+ alarmtimeout = strtoul(optarg, &e, 0);
+ if ((alarmtimeout < 1) || (alarmtimeout == ULONG_MAX))
+ errx(EX_USAGE, "invalid timeout: `%s'",
+ optarg);
+ if (alarmtimeout > MAXALARM)
+ errx(EX_USAGE, "invalid timeout: `%s' > %d",
+ optarg, MAXALARM);
+ {
+ struct itimerval itv;
+
+ timerclear(&itv.it_interval);
+ timerclear(&itv.it_value);
+ itv.it_value.tv_sec = (time_t)alarmtimeout;
+ if (setitimer(ITIMER_REAL, &itv, NULL) != 0)
+ err(1, "setitimer");
+ }
+ break;
+ case 'z': /* traffic class */
+ tclass = strtol(optarg, &e, 10);
+ if (*optarg == '\0' || *e != '\0')
+ errx(1, "illegal traffic class %s", optarg);
+ if (255 < tclass || tclass < -1)
+ errx(1,
+ "illegal traffic class -- %s", optarg);
+ break;
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+ case 'P':
+ options |= F_POLICY;
+ if (!strncmp("in", optarg, 2)) {
+ if ((policy_in = strdup(optarg)) == NULL)
+ errx(1, "strdup");
+ } else if (!strncmp("out", optarg, 3)) {
+ if ((policy_out = strdup(optarg)) == NULL)
+ errx(1, "strdup");
+ } else
+ errx(1, "invalid security policy");
+ break;
+#else
+ case 'Z':
+ options |= F_AUTHHDR;
+ break;
+ case 'E':
+ options |= F_ENCRYPT;
+ break;
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif /*IPSEC*/
+ default:
+ usage();
+ /*NOTREACHED*/
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 1) {
+ usage();
+ /*NOTREACHED*/
+ }
+
+ if (argc > 1) {
+#ifdef IPV6_RECVRTHDR /* 2292bis */
+ rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0,
+ argc - 1));
+#else /* RFC2292 */
+ rthlen = inet6_rthdr_space(IPV6_RTHDR_TYPE_0, argc - 1);
+#endif
+ if (rthlen == 0) {
+ errx(1, "too many intermediate hops");
+ /*NOTREACHED*/
+ }
+ ip6optlen += rthlen;
+ }
+
+ if (options & F_NIGROUP) {
+ target = nigroup(argv[argc - 1], nig_oldmcprefix);
+ if (target == NULL) {
+ usage();
+ /*NOTREACHED*/
+ }
+ } else
+ target = argv[argc - 1];
+
+ /* cap_getaddrinfo */
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = AF_INET6;
+ hints.ai_socktype = SOCK_RAW;
+ hints.ai_protocol = IPPROTO_ICMPV6;
+
+ error = cap_getaddrinfo(capdns, target, NULL, &hints, &res);
+ if (error)
+ errx(1, "%s", gai_strerror(error));
+ if (res->ai_canonname)
+ hostname = strdup(res->ai_canonname);
+ else
+ hostname = target;
+
+ if (!res->ai_addr)
+ errx(1, "cap_getaddrinfo failed");
+
+ (void)memcpy(&dst, res->ai_addr, res->ai_addrlen);
+
+ if ((ssend = socket(res->ai_family, res->ai_socktype,
+ res->ai_protocol)) < 0)
+ err(1, "socket ssend");
+ if ((srecv = socket(res->ai_family, res->ai_socktype,
+ res->ai_protocol)) < 0)
+ err(1, "socket srecv");
+ freeaddrinfo(res);
+
+ /* set the source address if specified. */
+ if ((options & F_SRCADDR) != 0) {
+ /* properly fill sin6_scope_id */
+ if (IN6_IS_ADDR_LINKLOCAL(&src.sin6_addr) && (
+ IN6_IS_ADDR_LINKLOCAL(&dst.sin6_addr) ||
+ IN6_IS_ADDR_MC_LINKLOCAL(&dst.sin6_addr) ||
+ IN6_IS_ADDR_MC_NODELOCAL(&dst.sin6_addr))) {
+ if (src.sin6_scope_id == 0)
+ src.sin6_scope_id = dst.sin6_scope_id;
+ if (dst.sin6_scope_id == 0)
+ dst.sin6_scope_id = src.sin6_scope_id;
+ }
+ if (bind(ssend, (struct sockaddr *)&src, srclen) != 0)
+ err(1, "bind");
+ }
+ /* set the gateway (next hop) if specified */
+ if (gateway) {
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_INET6;
+ hints.ai_socktype = SOCK_RAW;
+ hints.ai_protocol = IPPROTO_ICMPV6;
+
+ error = cap_getaddrinfo(capdns, gateway, NULL, &hints, &res);
+ if (error) {
+ errx(1, "cap_getaddrinfo for the gateway %s: %s",
+ gateway, gai_strerror(error));
+ }
+ if (res->ai_next && (options & F_VERBOSE))
+ warnx("gateway resolves to multiple addresses");
+
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_NEXTHOP,
+ res->ai_addr, res->ai_addrlen)) {
+ err(1, "setsockopt(IPV6_NEXTHOP)");
+ }
+
+ freeaddrinfo(res);
+ }
+
+ /*
+ * let the kerel pass extension headers of incoming packets,
+ * for privileged socket options
+ */
+ if ((options & F_VERBOSE) != 0) {
+ int opton = 1;
+
+#ifdef IPV6_RECVHOPOPTS
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_RECVHOPOPTS)");
+#else /* old adv. API */
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_HOPOPTS)");
+#endif
+#ifdef IPV6_RECVDSTOPTS
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_RECVDSTOPTS)");
+#else /* old adv. API */
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_DSTOPTS)");
+#endif
+#ifdef IPV6_RECVRTHDRDSTOPTS
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
+#endif
+ }
+
+ /* revoke root privilege */
+ if (seteuid(getuid()) != 0)
+ err(1, "seteuid() failed");
+ if (setuid(getuid()) != 0)
+ err(1, "setuid() failed");
+
+ if ((options & F_FLOOD) && (options & F_INTERVAL))
+ errx(1, "-f and -i incompatible options");
+
+ if ((options & F_NOUSERDATA) == 0) {
+ if (datalen >= sizeof(struct tv32)) {
+ /* we can time transfer */
+ timing = 1;
+ } else
+ timing = 0;
+ /* in F_VERBOSE case, we may get non-echoreply packets*/
+ if (options & F_VERBOSE)
+ packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
+ else
+ packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
+ } else {
+ /* suppress timing for node information query */
+ timing = 0;
+ datalen = 2048;
+ packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
+ }
+
+ if (!(packet = (u_char *)malloc((u_int)packlen)))
+ err(1, "Unable to allocate packet");
+ if (!(options & F_PINGFILLED))
+ for (i = ICMP6ECHOLEN; i < packlen; ++i)
+ *datap++ = i;
+
+ ident = getpid() & 0xFFFF;
+ arc4random_buf(nonce, sizeof(nonce));
+ optval = 1;
+ if (options & F_DONTFRAG)
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_DONTFRAG,
+ &optval, sizeof(optval)) == -1)
+ err(1, "IPV6_DONTFRAG");
+ hold = 1;
+
+ if (options & F_SO_DEBUG) {
+ (void)setsockopt(ssend, SOL_SOCKET, SO_DEBUG, (char *)&hold,
+ sizeof(hold));
+ (void)setsockopt(srecv, SOL_SOCKET, SO_DEBUG, (char *)&hold,
+ sizeof(hold));
+ }
+ optval = IPV6_DEFHLIM;
+ if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
+ &optval, sizeof(optval)) == -1)
+ err(1, "IPV6_MULTICAST_HOPS");
+#ifdef IPV6_USE_MIN_MTU
+ if (mflag != 1) {
+ optval = mflag > 1 ? 0 : 1;
+
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_USE_MIN_MTU)");
+ }
+#ifdef IPV6_RECVPATHMTU
+ else {
+ optval = 1;
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVPATHMTU,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_RECVPATHMTU)");
+ }
+#endif /* IPV6_RECVPATHMTU */
+#endif /* IPV6_USE_MIN_MTU */
+
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+ if (options & F_POLICY) {
+ if (setpolicy(srecv, policy_in) < 0)
+ errx(1, "%s", ipsec_strerror());
+ if (setpolicy(ssend, policy_out) < 0)
+ errx(1, "%s", ipsec_strerror());
+ }
+#else
+ if (options & F_AUTHHDR) {
+ optval = IPSEC_LEVEL_REQUIRE;
+#ifdef IPV6_AUTH_TRANS_LEVEL
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
+#else /* old def */
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_AUTH_LEVEL)");
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_AUTH_LEVEL)");
+#endif
+ }
+ if (options & F_ENCRYPT) {
+ optval = IPSEC_LEVEL_REQUIRE;
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
+ &optval, sizeof(optval)) == -1)
+ err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
+ }
+#endif /*IPSEC_POLICY_IPSEC*/
+#endif
+
+#ifdef ICMP6_FILTER
+ {
+ struct icmp6_filter filt;
+ if (!(options & F_VERBOSE)) {
+ ICMP6_FILTER_SETBLOCKALL(&filt);
+ if ((options & F_FQDN) || (options & F_FQDNOLD) ||
+ (options & F_NODEADDR) || (options & F_SUPTYPES))
+ ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
+ else
+ ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
+ } else {
+ ICMP6_FILTER_SETPASSALL(&filt);
+ }
+ if (setsockopt(srecv, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
+ sizeof(filt)) < 0)
+ err(1, "setsockopt(ICMP6_FILTER)");
+ }
+#endif /*ICMP6_FILTER*/
+
+ /* let the kerel pass extension headers of incoming packets */
+ if ((options & F_VERBOSE) != 0) {
+ int opton = 1;
+
+#ifdef IPV6_RECVRTHDR
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_RECVRTHDR)");
+#else /* old adv. API */
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RTHDR, &opton,
+ sizeof(opton)))
+ err(1, "setsockopt(IPV6_RTHDR)");
+#endif
+ }
+
+/*
+ optval = 1;
+ if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
+ &optval, sizeof(optval)) == -1)
+ err(1, "IPV6_MULTICAST_LOOP");
+*/
+
+ /* Specify the outgoing interface and/or the source address */
+ if (usepktinfo)
+ ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
+
+ if (hoplimit != -1)
+ ip6optlen += CMSG_SPACE(sizeof(int));
+
+ /* set IP6 packet options */
+ if (ip6optlen) {
+ if ((scmsg = (char *)malloc(ip6optlen)) == NULL)
+ errx(1, "can't allocate enough memory");
+ smsghdr.msg_control = (caddr_t)scmsg;
+ smsghdr.msg_controllen = ip6optlen;
+ scmsgp = CMSG_FIRSTHDR(&smsghdr);
+ }
+ if (usepktinfo) {
+ cmsg_pktinfo = CMSG_DATA(scmsgp);
+ scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
+ scmsgp->cmsg_level = IPPROTO_IPV6;
+ scmsgp->cmsg_type = IPV6_PKTINFO;
+ scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
+ }
+
+ /* set the outgoing interface */
+ if (ifname) {
+#ifndef USE_SIN6_SCOPE_ID
+ /* pktinfo must have already been allocated */
+ if ((pktinfo.ipi6_ifindex = if_nametoindex(ifname)) == 0)
+ errx(1, "%s: invalid interface name", ifname);
+#else
+ if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
+ errx(1, "%s: invalid interface name", ifname);
+#endif
+ }
+ if (hoplimit != -1) {
+ scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
+ scmsgp->cmsg_level = IPPROTO_IPV6;
+ scmsgp->cmsg_type = IPV6_HOPLIMIT;
+ memcpy(CMSG_DATA(scmsgp), &hoplimit, sizeof(hoplimit));
+
+ scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
+ }
+
+ if (tclass != -1) {
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_TCLASS,
+ &tclass, sizeof(tclass)) == -1)
+ err(1, "setsockopt(IPV6_TCLASS)");
+ }
+
+ if (pcp != -2) {
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_VLAN_PCP,
+ &pcp, sizeof(pcp)) == -1)
+ err(1, "setsockopt(IPV6_VLAN_PCP)");
+ }
+
+ if (argc > 1) { /* some intermediate addrs are specified */
+ int hops;
+ int rthdrlen;
+
+ rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
+ scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
+ scmsgp->cmsg_level = IPPROTO_IPV6;
+ scmsgp->cmsg_type = IPV6_RTHDR;
+ rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
+ rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
+ IPV6_RTHDR_TYPE_0, argc - 1);
+ if (rthdr == NULL)
+ errx(1, "can't initialize rthdr");
+
+ for (hops = 0; hops < argc - 1; hops++) {
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_INET6;
+
+ if ((error = cap_getaddrinfo(capdns, argv[hops], NULL, &hints,
+ &res)))
+ errx(1, "%s", gai_strerror(error));
+ if (res->ai_addr->sa_family != AF_INET6)
+ errx(1,
+ "bad addr family of an intermediate addr");
+ sin6 = (struct sockaddr_in6 *)(void *)res->ai_addr;
+ if (inet6_rth_add(rthdr, &sin6->sin6_addr))
+ errx(1, "can't add an intermediate node");
+ freeaddrinfo(res);
+ }
+
+ scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
+ }
+
+ /* From now on we will use only reverse DNS lookups. */
+#ifdef WITH_CASPER
+ if (capdns != NULL) {
+ const char *types[1];
+
+ types[0] = "ADDR2NAME";
+ if (cap_dns_type_limit(capdns, types, nitems(types)) < 0)
+ err(1, "unable to limit access to system.dns service");
+ }
+#endif
+ if (!(options & F_SRCADDR)) {
+ /*
+ * get the source address. XXX since we revoked the root
+ * privilege, we cannot use a raw socket for this.
+ */
+ int dummy;
+ socklen_t len = sizeof(src);
+
+ if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ err(1, "UDP socket");
+
+ src.sin6_family = AF_INET6;
+ src.sin6_addr = dst.sin6_addr;
+ src.sin6_port = ntohs(DUMMY_PORT);
+ src.sin6_scope_id = dst.sin6_scope_id;
+
+ if (usepktinfo &&
+ setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
+ (void *)&pktinfo, sizeof(pktinfo)))
+ err(1, "UDP setsockopt(IPV6_PKTINFO)");
+
+ if (hoplimit != -1 &&
+ setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
+ (void *)&hoplimit, sizeof(hoplimit)))
+ err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
+
+ if (hoplimit != -1 &&
+ setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
+ (void *)&hoplimit, sizeof(hoplimit)))
+ err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
+
+ if (rthdr &&
+ setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
+ (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
+ err(1, "UDP setsockopt(IPV6_RTHDR)");
+
+ if (connect(dummy, (struct sockaddr *)&src, len) < 0)
+ err(1, "UDP connect");
+
+ if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
+ err(1, "getsockname");
+
+ close(dummy);
+ }
+
+ /* Save pktinfo in the ancillary data. */
+ if (usepktinfo)
+ memcpy(cmsg_pktinfo, &pktinfo, sizeof(pktinfo));
+
+ if (connect(ssend, (struct sockaddr *)&dst, sizeof(dst)) != 0)
+ err(1, "connect() ssend");
+
+ caph_cache_catpages();
+ if (caph_enter_casper() < 0)
+ err(1, "caph_enter_casper");
+
+ cap_rights_init(&rights_stdin);
+ if (caph_rights_limit(STDIN_FILENO, &rights_stdin) < 0)
+ err(1, "caph_rights_limit stdin");
+ if (caph_limit_stdout() < 0)
+ err(1, "caph_limit_stdout");
+ if (caph_limit_stderr() < 0)
+ err(1, "caph_limit_stderr");
+
+ cap_rights_init(&rights_srecv, CAP_RECV, CAP_EVENT, CAP_SETSOCKOPT);
+ if (caph_rights_limit(srecv, &rights_srecv) < 0)
+ err(1, "caph_rights_limit srecv");
+ cap_rights_init(&rights_ssend, CAP_SEND, CAP_SETSOCKOPT);
+ if (caph_rights_limit(ssend, &rights_ssend) < 0)
+ err(1, "caph_rights_limit ssend");
+
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+ if (sockbufsize) {
+ if (datalen > (size_t)sockbufsize)
+ warnx("you need -b to increase socket buffer size");
+ if (setsockopt(ssend, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
+ sizeof(sockbufsize)) < 0)
+ err(1, "setsockopt(SO_SNDBUF)");
+ if (setsockopt(srecv, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
+ sizeof(sockbufsize)) < 0)
+ err(1, "setsockopt(SO_RCVBUF)");
+ }
+ else {
+ if (datalen > 8 * 1024) /*XXX*/
+ warnx("you need -b to increase socket buffer size");
+ /*
+ * When pinging the broadcast address, you can get a lot of
+ * answers. Doing something so evil is useful if you are trying
+ * to stress the ethernet, or just want to fill the arp cache
+ * to get some stuff for /etc/ethers.
+ */
+ hold = 48 * 1024;
+ setsockopt(srecv, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
+ sizeof(hold));
+ }
+#endif
+
+ optval = 1;
+#ifndef USE_SIN6_SCOPE_ID
+#ifdef IPV6_RECVPKTINFO
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
+ sizeof(optval)) < 0)
+ warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
+#else /* old adv. API */
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
+ sizeof(optval)) < 0)
+ warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
+#endif
+#endif /* USE_SIN6_SCOPE_ID */
+#ifdef IPV6_RECVHOPLIMIT
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
+ sizeof(optval)) < 0)
+ warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
+#else /* old adv. API */
+ if (setsockopt(srecv, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
+ sizeof(optval)) < 0)
+ warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
+#endif
+
+ cap_rights_clear(&rights_srecv, CAP_SETSOCKOPT);
+ if (caph_rights_limit(srecv, &rights_srecv) < 0)
+ err(1, "caph_rights_limit srecv setsockopt");
+ cap_rights_clear(&rights_ssend, CAP_SETSOCKOPT);
+ if (caph_rights_limit(ssend, &rights_ssend) < 0)
+ err(1, "caph_rights_limit ssend setsockopt");
+
+ printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
+ (unsigned long)(pingerlen() - 8));
+ printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
+ printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
+
+ if (preload == 0)
+ pinger();
+ else {
+ if (npackets != 0 && preload > npackets)
+ preload = npackets;
+ while (preload--)
+ pinger();
+ }
+ clock_gettime(CLOCK_MONOTONIC, &last);
+
+ sigemptyset(&si_sa.sa_mask);
+ si_sa.sa_flags = 0;
+ si_sa.sa_handler = onsignal;
+ if (sigaction(SIGINT, &si_sa, 0) == -1)
+ err(EX_OSERR, "sigaction SIGINT");
+ seenint = 0;
+#ifdef SIGINFO
+ if (sigaction(SIGINFO, &si_sa, 0) == -1)
+ err(EX_OSERR, "sigaction SIGINFO");
+ seeninfo = 0;
+#endif
+ if (alarmtimeout > 0) {
+ if (sigaction(SIGALRM, &si_sa, 0) == -1)
+ err(EX_OSERR, "sigaction SIGALRM");
+ }
+ if (options & F_FLOOD) {
+ intvl.tv_sec = 0;
+ intvl.tv_nsec = 10000000;
+ }
+
+ almost_done = 0;
+ while (seenint == 0) {
+ struct timespec now, timeout;
+ struct msghdr m;
+ struct iovec iov[2];
+ fd_set rfds;
+ int n;
+
+ /* signal handling */
+ if (seenint)
+ onint(SIGINT);
+#ifdef SIGINFO
+ if (seeninfo) {
+ summary();
+ seeninfo = 0;
+ continue;
+ }
+#endif
+ FD_ZERO(&rfds);
+ FD_SET(srecv, &rfds);
+ clock_gettime(CLOCK_MONOTONIC, &now);
+ timespecadd(&last, &intvl, &timeout);
+ timespecsub(&timeout, &now, &timeout);
+ if (timeout.tv_sec < 0)
+ timespecclear(&timeout);
+
+ n = pselect(srecv + 1, &rfds, NULL, NULL, &timeout, NULL);
+ if (n < 0)
+ continue; /* EINTR */
+ if (n == 1) {
+ m.msg_name = (caddr_t)&from;
+ m.msg_namelen = sizeof(from);
+ memset(&iov, 0, sizeof(iov));
+ iov[0].iov_base = (caddr_t)packet;
+ iov[0].iov_len = packlen;
+ m.msg_iov = iov;
+ m.msg_iovlen = 1;
+ memset(cm, 0, CONTROLLEN);
+ m.msg_control = (void *)cm;
+ m.msg_controllen = CONTROLLEN;
+
+ cc = recvmsg(srecv, &m, 0);
+ if (cc < 0) {
+ if (errno != EINTR) {
+ warn("recvmsg");
+ sleep(1);
+ }
+ continue;
+ } else if (cc == 0) {
+ int mtu;
+
+ /*
+ * receive control messages only. Process the
+ * exceptions (currently the only possibility is
+ * a path MTU notification.)
+ */
+ if ((mtu = get_pathmtu(&m)) > 0) {
+ if ((options & F_VERBOSE) != 0) {
+ printf("new path MTU (%d) is "
+ "notified\n", mtu);
+ }
+ }
+ continue;
+ } else {
+ /*
+ * an ICMPv6 message (probably an echoreply)
+ * arrived.
+ */
+ pr_pack(packet, cc, &m);
+ }
+ if (((options & F_ONCE) != 0 && nreceived > 0) ||
+ (npackets > 0 && nreceived >= npackets))
+ break;
+ }
+ if (n == 0 || (options & F_FLOOD)) {
+ if (npackets == 0 || ntransmitted < npackets)
+ pinger();
+ else {
+ if (almost_done)
+ break;
+ almost_done = 1;
+ /*
+ * If we're not transmitting any more packets,
+ * change the timer to wait two round-trip times
+ * if we've received any packets or (waittime)
+ * milliseconds if we haven't.
+ */
+ intvl.tv_nsec = 0;
+ if (nreceived) {
+ intvl.tv_sec = 2 * tmax / 1000;
+ if (intvl.tv_sec == 0)
+ intvl.tv_sec = 1;
+ } else {
+ intvl.tv_sec = waittime / 1000;
+ intvl.tv_nsec =
+ waittime % 1000 * 1000000;
+ }
+ }
+ clock_gettime(CLOCK_MONOTONIC, &last);
+ if (ntransmitted - nreceived - 1 > nmissedmax) {
+ nmissedmax = ntransmitted - nreceived - 1;
+ if (options & F_MISSED)
+ (void)write(STDOUT_FILENO, &BBELL, 1);
+ }
+ }
+ }
+ sigemptyset(&si_sa.sa_mask);
+ si_sa.sa_flags = 0;
+ si_sa.sa_handler = SIG_IGN;
+ sigaction(SIGINT, &si_sa, 0);
+ sigaction(SIGALRM, &si_sa, 0);
+ summary();
+
+ if(packet != NULL)
+ free(packet);
+
+ if (nreceived > 0)
+ exit(0);
+ else if (ntransmitted > ntransmitfailures)
+ exit(2);
+ else
+ exit(EX_OSERR);
+}
+
+static void
+onsignal(int sig)
+{
+
+ switch (sig) {
+ case SIGINT:
+ case SIGALRM:
+ seenint++;
+ break;
+#ifdef SIGINFO
+ case SIGINFO:
+ seeninfo++;
+ break;
+#endif
+ }
+}
+
+/*
+ * pinger --
+ * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
+ * will be added on by the kernel. The ID field is our UNIX process ID,
+ * and the sequence number is an ascending integer. The first 8 bytes
+ * of the data portion are used to hold a UNIX "timespec" struct in VAX
+ * byte-order, to compute the round-trip time.
+ */
+static size_t
+pingerlen(void)
+{
+ size_t l;
+
+ if (options & F_FQDN)
+ l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
+ else if (options & F_FQDNOLD)
+ l = ICMP6_NIQLEN;
+ else if (options & F_NODEADDR)
+ l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
+ else if (options & F_SUPTYPES)
+ l = ICMP6_NIQLEN;
+ else
+ l = ICMP6ECHOLEN + datalen;
+
+ return l;
+}
+
+static int
+pinger(void)
+{
+ struct icmp6_hdr *icp;
+ struct iovec iov[2];
+ int i, cc;
+ struct icmp6_nodeinfo *nip;
+ uint16_t seq;
+
+ if (npackets && ntransmitted >= npackets)
+ return(-1); /* no more transmission */
+
+ icp = (struct icmp6_hdr *)outpack;
+ nip = (struct icmp6_nodeinfo *)outpack;
+ memset(icp, 0, sizeof(*icp));
+ icp->icmp6_cksum = 0;
+ seq = ntransmitted++;
+ CLR(seq % mx_dup_ck);
+
+ if (options & F_FQDN) {
+ uint16_t s;
+
+ icp->icmp6_type = ICMP6_NI_QUERY;
+ icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
+ nip->ni_qtype = htons(NI_QTYPE_FQDN);
+ nip->ni_flags = htons(0);
+
+ memcpy(nip->icmp6_ni_nonce, nonce,
+ sizeof(nip->icmp6_ni_nonce));
+ s = htons(seq);
+ memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
+
+ memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
+ sizeof(dst.sin6_addr));
+ cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
+ datalen = 0;
+ } else if (options & F_FQDNOLD) {
+ uint16_t s;
+ /* packet format in 03 draft - no Subject data on queries */
+ icp->icmp6_type = ICMP6_NI_QUERY;
+ icp->icmp6_code = 0; /* code field is always 0 */
+ nip->ni_qtype = htons(NI_QTYPE_FQDN);
+ nip->ni_flags = htons(0);
+
+ memcpy(nip->icmp6_ni_nonce, nonce,
+ sizeof(nip->icmp6_ni_nonce));
+ s = htons(seq);
+ memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
+
+ cc = ICMP6_NIQLEN;
+ datalen = 0;
+ } else if (options & F_NODEADDR) {
+ uint16_t s;
+
+ icp->icmp6_type = ICMP6_NI_QUERY;
+ icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
+ nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
+ nip->ni_flags = naflags;
+
+ memcpy(nip->icmp6_ni_nonce, nonce,
+ sizeof(nip->icmp6_ni_nonce));
+ s = htons(seq);
+ memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
+
+ memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
+ sizeof(dst.sin6_addr));
+ cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
+ datalen = 0;
+ } else if (options & F_SUPTYPES) {
+ uint16_t s;
+
+ icp->icmp6_type = ICMP6_NI_QUERY;
+ icp->icmp6_code = ICMP6_NI_SUBJ_FQDN; /*empty*/
+ nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
+ /* we support compressed bitmap */
+ nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
+
+ memcpy(nip->icmp6_ni_nonce, nonce,
+ sizeof(nip->icmp6_ni_nonce));
+ s = htons(seq);
+ memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
+
+ cc = ICMP6_NIQLEN;
+ datalen = 0;
+ } else {
+ icp->icmp6_type = ICMP6_ECHO_REQUEST;
+ icp->icmp6_code = 0;
+ icp->icmp6_id = htons(ident);
+ icp->icmp6_seq = htons(seq);
+ if (timing) {
+ struct timespec tv;
+ struct tv32 tv32;
+ (void)clock_gettime(CLOCK_MONOTONIC, &tv);
+ /*
+ * Truncate seconds down to 32 bits in order
+ * to fit the timestamp within 8 bytes of the
+ * packet. We're only concerned with
+ * durations, not absolute times.
+ */
+ tv32.tv32_sec = (uint32_t)htonl(tv.tv_sec);
+ tv32.tv32_nsec = (uint32_t)htonl(tv.tv_nsec);
+ memcpy(&outpack[ICMP6ECHOLEN], &tv32, sizeof(tv32));
+ }
+ cc = ICMP6ECHOLEN + datalen;
+ }
+
+#ifdef DIAGNOSTIC
+ if (pingerlen() != cc)
+ errx(1, "internal error; length mismatch");
+#endif
+
+ memset(&iov, 0, sizeof(iov));
+ iov[0].iov_base = (caddr_t)outpack;
+ iov[0].iov_len = cc;
+ smsghdr.msg_iov = iov;
+ smsghdr.msg_iovlen = 1;
+
+ i = sendmsg(ssend, &smsghdr, 0);
+
+ if (i < 0 || i != cc) {
+ if (i < 0) {
+ ntransmitfailures++;
+ warn("sendmsg");
+ }
+ (void)printf("ping6: wrote %s %d chars, ret=%d\n",
+ hostname, cc, i);
+ }
+ if (!(options & F_QUIET) && options & F_FLOOD)
+ (void)write(STDOUT_FILENO, &DOT, 1);
+
+ return(0);
+}
+
+static int
+myechoreply(const struct icmp6_hdr *icp)
+{
+ if (ntohs(icp->icmp6_id) == ident)
+ return 1;
+ else
+ return 0;
+}
+
+static int
+mynireply(const struct icmp6_nodeinfo *nip)
+{
+ if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
+ nonce + sizeof(u_int16_t),
+ sizeof(nonce) - sizeof(u_int16_t)) == 0)
+ return 1;
+ else
+ return 0;
+}
+
+/*
+ * Decode a name from a DNS message.
+ *
+ * Format of the message is described in RFC 1035 subsection 4.1.4.
+ *
+ * Arguments:
+ * sp - Pointer to a DNS pointer octet or to the first octet of a label
+ * in the message.
+ * ep - Pointer to the end of the message (one step past the last octet).
+ * base - Pointer to the beginning of the message.
+ * buf - Buffer into which the decoded name will be saved.
+ * bufsiz - Size of the buffer 'buf'.
+ *
+ * Return value:
+ * Pointer to an octet immediately following the ending zero octet
+ * of the decoded label, or NULL if an error occured.
+ */
+static const char *
+dnsdecode(const u_char *sp, const u_char *ep, const u_char *base, char *buf,
+ size_t bufsiz)
+{
+ int i;
+ const u_char *cp;
+ char cresult[MAXDNAME + 1];
+ const u_char *comp;
+ int l;
+
+ cp = sp;
+ *buf = '\0';
+
+ if (cp >= ep)
+ return NULL;
+ while (cp < ep) {
+ i = *cp;
+ if (i == 0 || cp != sp) {
+ if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
+ return NULL; /*result overrun*/
+ }
+ if (i == 0)
+ break;
+ cp++;
+
+ if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
+ /* DNS compression */
+ if (!base)
+ return NULL;
+
+ comp = base + (i & 0x3f);
+ if (dnsdecode(comp, cp, base, cresult,
+ sizeof(cresult)) == NULL)
+ return NULL;
+ if (strlcat(buf, cresult, bufsiz) >= bufsiz)
+ return NULL; /*result overrun*/
+ break;
+ } else if ((i & 0x3f) == i) {
+ if (i > ep - cp)
+ return NULL; /*source overrun*/
+ while (i-- > 0 && cp < ep) {
+ l = snprintf(cresult, sizeof(cresult),
+ isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
+ if ((size_t)l >= sizeof(cresult) || l < 0)
+ return NULL;
+ if (strlcat(buf, cresult, bufsiz) >= bufsiz)
+ return NULL; /*result overrun*/
+ cp++;
+ }
+ } else
+ return NULL; /*invalid label*/
+ }
+ if (i != 0)
+ return NULL; /*not terminated*/
+ cp++;
+ return cp;
+}
+
+/*
+ * pr_pack --
+ * Print out the packet, if it came from us. This logic is necessary
+ * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
+ * which arrive ('tis only fair). This permits multiple copies of this
+ * program to be run without having intermingled output (or statistics!).
+ */
+static void
+pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
+{
+#define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
+ struct icmp6_hdr *icp;
+ struct icmp6_nodeinfo *ni;
+ int i;
+ int hoplim;
+ struct sockaddr *from;
+ int fromlen;
+ const u_char *cp = NULL;
+ u_char *dp, *end = buf + cc;
+ struct in6_pktinfo *pktinfo = NULL;
+ struct timespec tv, tp;
+ struct tv32 tpp;
+ double triptime = 0;
+ int dupflag;
+ size_t off;
+ int oldfqdn;
+ u_int16_t seq;
+ char dnsname[MAXDNAME + 1];
+
+ (void)clock_gettime(CLOCK_MONOTONIC, &tv);
+
+ if (!mhdr || !mhdr->msg_name ||
+ mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
+ ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
+ if (options & F_VERBOSE)
+ warnx("invalid peername");
+ return;
+ }
+ from = (struct sockaddr *)mhdr->msg_name;
+ fromlen = mhdr->msg_namelen;
+ if (cc < (int)sizeof(struct icmp6_hdr)) {
+ if (options & F_VERBOSE)
+ warnx("packet too short (%d bytes) from %s", cc,
+ pr_addr(from, fromlen));
+ return;
+ }
+ if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
+ (options & F_VERBOSE) != 0)
+ warnx("some control data discarded, insufficient buffer size");
+ icp = (struct icmp6_hdr *)buf;
+ ni = (struct icmp6_nodeinfo *)buf;
+ off = 0;
+
+ if ((hoplim = get_hoplim(mhdr)) == -1) {
+ warnx("failed to get receiving hop limit");
+ return;
+ }
+ if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
+ warnx("failed to get receiving packet information");
+ return;
+ }
+
+ if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
+ seq = ntohs(icp->icmp6_seq);
+ ++nreceived;
+ if (timing) {
+ memcpy(&tpp, icp + 1, sizeof(tpp));
+ tp.tv_sec = ntohl(tpp.tv32_sec);
+ tp.tv_nsec = ntohl(tpp.tv32_nsec);
+ timespecsub(&tv, &tp, &tv);
+ triptime = ((double)tv.tv_sec) * 1000.0 +
+ ((double)tv.tv_nsec) / 1000000.0;
+ tsum += triptime;
+ tsumsq += triptime * triptime;
+ if (triptime < tmin)
+ tmin = triptime;
+ if (triptime > tmax)
+ tmax = triptime;
+ }
+
+ if (TST(seq % mx_dup_ck)) {
+ ++nrepeats;
+ --nreceived;
+ dupflag = 1;
+ } else {
+ SET(seq % mx_dup_ck);
+ dupflag = 0;
+ }
+
+ if (options & F_QUIET)
+ return;
+
+ if (options & F_WAITTIME && triptime > waittime) {
+ ++nrcvtimeout;
+ return;
+ }
+
+ if (options & F_FLOOD)
+ (void)write(STDOUT_FILENO, &BSPACE, 1);
+ else {
+ if (options & F_AUDIBLE)
+ (void)write(STDOUT_FILENO, &BBELL, 1);
+ (void)printf("%d bytes from %s, icmp_seq=%u", cc,
+ pr_addr(from, fromlen), seq);
+ (void)printf(" hlim=%d", hoplim);
+ if ((options & F_VERBOSE) != 0) {
+ struct sockaddr_in6 dstsa;
+
+ memset(&dstsa, 0, sizeof(dstsa));
+ dstsa.sin6_family = AF_INET6;
+ dstsa.sin6_len = sizeof(dstsa);
+ dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
+ dstsa.sin6_addr = pktinfo->ipi6_addr;
+ (void)printf(" dst=%s",
+ pr_addr((struct sockaddr *)&dstsa,
+ sizeof(dstsa)));
+ }
+ if (timing)
+ (void)printf(" time=%.3f ms", triptime);
+ if (dupflag)
+ (void)printf("(DUP!)");
+ /* check the data */
+ cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
+ dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
+ for (i = 8; cp < end; ++i, ++cp, ++dp) {
+ if (*cp != *dp) {
+ (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
+ break;
+ }
+ }
+ }
+ } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
+ memcpy(&seq, ni->icmp6_ni_nonce, sizeof(seq));
+ seq = ntohs(seq);
+ ++nreceived;
+ if (TST(seq % mx_dup_ck)) {
+ ++nrepeats;
+ --nreceived;
+ dupflag = 1;
+ } else {
+ SET(seq % mx_dup_ck);
+ dupflag = 0;
+ }
+
+ if (options & F_QUIET)
+ return;
+
+ (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
+
+ switch (ntohs(ni->ni_code)) {
+ case ICMP6_NI_SUCCESS:
+ break;
+ case ICMP6_NI_REFUSED:
+ printf("refused, type 0x%x", ntohs(ni->ni_type));
+ goto fqdnend;
+ case ICMP6_NI_UNKNOWN:
+ printf("unknown, type 0x%x", ntohs(ni->ni_type));
+ goto fqdnend;
+ default:
+ printf("unknown code 0x%x, type 0x%x",
+ ntohs(ni->ni_code), ntohs(ni->ni_type));
+ goto fqdnend;
+ }
+
+ switch (ntohs(ni->ni_qtype)) {
+ case NI_QTYPE_NOOP:
+ printf("NodeInfo NOOP");
+ break;
+ case NI_QTYPE_SUPTYPES:
+ pr_suptypes(ni, end - (u_char *)ni);
+ break;
+ case NI_QTYPE_NODEADDR:
+ pr_nodeaddr(ni, end - (u_char *)ni);
+ break;
+ case NI_QTYPE_FQDN:
+ default: /* XXX: for backward compatibility */
+ cp = (u_char *)ni + ICMP6_NIRLEN;
+ if (buf[off + ICMP6_NIRLEN] ==
+ cc - off - ICMP6_NIRLEN - 1)
+ oldfqdn = 1;
+ else
+ oldfqdn = 0;
+ if (oldfqdn) {
+ cp++; /* skip length */
+ while (cp < end) {
+ safeputc(*cp & 0xff);
+ cp++;
+ }
+ } else {
+ i = 0;
+ while (cp < end) {
+ cp = dnsdecode((const u_char *)cp, end,
+ (const u_char *)(ni + 1), dnsname,
+ sizeof(dnsname));
+ if (cp == NULL) {
+ printf("???");
+ break;
+ }
+ /*
+ * name-lookup special handling for
+ * truncated name
+ */
+ if (cp + 1 <= end && !*cp &&
+ strlen(dnsname) > 0) {
+ dnsname[strlen(dnsname) - 1] = '\0';
+ cp++;
+ }
+ printf("%s%s", i > 0 ? "," : "",
+ dnsname);
+ }
+ }
+ if (options & F_VERBOSE) {
+ u_long t;
+ int32_t ttl;
+ int comma = 0;
+
+ (void)printf(" ("); /*)*/
+
+ switch (ni->ni_code) {
+ case ICMP6_NI_REFUSED:
+ (void)printf("refused");
+ comma++;
+ break;
+ case ICMP6_NI_UNKNOWN:
+ (void)printf("unknown qtype");
+ comma++;
+ break;
+ }
+
+ if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
+ /* case of refusion, unknown */
+ /*(*/
+ putchar(')');
+ goto fqdnend;
+ }
+ memcpy(&t, &buf[off+ICMP6ECHOLEN+8], sizeof(t));
+ ttl = (int32_t)ntohl(t);
+ if (comma)
+ printf(",");
+ if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
+ (void)printf("TTL=%d:meaningless",
+ (int)ttl);
+ } else {
+ if (ttl < 0) {
+ (void)printf("TTL=%d:invalid",
+ ttl);
+ } else
+ (void)printf("TTL=%d", ttl);
+ }
+ comma++;
+
+ if (oldfqdn) {
+ if (comma)
+ printf(",");
+ printf("03 draft");
+ comma++;
+ } else {
+ cp = (u_char *)ni + ICMP6_NIRLEN;
+ if (cp == end) {
+ if (comma)
+ printf(",");
+ printf("no name");
+ comma++;
+ }
+ }
+
+ if (buf[off + ICMP6_NIRLEN] !=
+ cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
+ if (comma)
+ printf(",");
+ (void)printf("invalid namelen:%d/%lu",
+ buf[off + ICMP6_NIRLEN],
+ (u_long)cc - off - ICMP6_NIRLEN - 1);
+ comma++;
+ }
+ /*(*/
+ putchar(')');
+ }
+ fqdnend:
+ ;
+ }
+ } else {
+ /* We've got something other than an ECHOREPLY */
+ if (!(options & F_VERBOSE))
+ return;
+ (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
+ pr_icmph(icp, end);
+ }
+
+ if (!(options & F_FLOOD)) {
+ (void)putchar('\n');
+ if (options & F_VERBOSE)
+ pr_exthdrs(mhdr);
+ (void)fflush(stdout);
+ }
+#undef safeputc
+}
+
+static void
+pr_exthdrs(struct msghdr *mhdr)
+{
+ ssize_t bufsize;
+ void *bufp;
+ struct cmsghdr *cm;
+
+ bufsize = 0;
+ bufp = mhdr->msg_control;
+ for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
+ cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
+ if (cm->cmsg_level != IPPROTO_IPV6)
+ continue;
+
+ bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
+ if (bufsize <= 0)
+ continue;
+ switch (cm->cmsg_type) {
+ case IPV6_HOPOPTS:
+ printf(" HbH Options: ");
+ pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
+ break;
+ case IPV6_DSTOPTS:
+#ifdef IPV6_RTHDRDSTOPTS
+ case IPV6_RTHDRDSTOPTS:
+#endif
+ printf(" Dst Options: ");
+ pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
+ break;
+ case IPV6_RTHDR:
+ printf(" Routing: ");
+ pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
+ break;
+ }
+ }
+}
+
+static void
+pr_ip6opt(void *extbuf, size_t bufsize)
+{
+ struct ip6_hbh *ext;
+ int currentlen;
+ u_int8_t type;
+ socklen_t extlen, len;
+ void *databuf;
+ size_t offset;
+ u_int16_t value2;
+ u_int32_t value4;
+
+ ext = (struct ip6_hbh *)extbuf;
+ extlen = (ext->ip6h_len + 1) * 8;
+ printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
+ (unsigned int)ext->ip6h_len, (unsigned long)extlen);
+
+ /*
+ * Bounds checking on the ancillary data buffer:
+ * subtract the size of a cmsg structure from the buffer size.
+ */
+ if (bufsize < (extlen + CMSG_SPACE(0))) {
+ extlen = bufsize - CMSG_SPACE(0);
+ warnx("options truncated, showing only %u (total=%u)",
+ (unsigned int)(extlen / 8 - 1),
+ (unsigned int)(ext->ip6h_len));
+ }
+
+ currentlen = 0;
+ while (1) {
+ currentlen = inet6_opt_next(extbuf, extlen, currentlen,
+ &type, &len, &databuf);
+ if (currentlen == -1)
+ break;
+ switch (type) {
+ /*
+ * Note that inet6_opt_next automatically skips any padding
+ * optins.
+ */
+ case IP6OPT_JUMBO:
+ offset = 0;
+ offset = inet6_opt_get_val(databuf, offset,
+ &value4, sizeof(value4));
+ printf(" Jumbo Payload Opt: Length %u\n",
+ (u_int32_t)ntohl(value4));
+ break;
+ case IP6OPT_ROUTER_ALERT:
+ offset = 0;
+ offset = inet6_opt_get_val(databuf, offset,
+ &value2, sizeof(value2));
+ printf(" Router Alert Opt: Type %u\n",
+ ntohs(value2));
+ break;
+ default:
+ printf(" Received Opt %u len %lu\n",
+ type, (unsigned long)len);
+ break;
+ }
+ }
+ return;
+}
+
+static void
+pr_rthdr(void *extbuf, size_t bufsize)
+{
+ struct in6_addr *in6;
+ char ntopbuf[INET6_ADDRSTRLEN];
+ struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
+ int i, segments, origsegs, rthsize, size0, size1;
+
+ /* print fixed part of the header */
+ printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
+ rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
+ if ((segments = inet6_rth_segments(extbuf)) >= 0) {
+ printf("%d segments, ", segments);
+ printf("%d left\n", rh->ip6r_segleft);
+ } else {
+ printf("segments unknown, ");
+ printf("%d left\n", rh->ip6r_segleft);
+ return;
+ }
+
+ /*
+ * Bounds checking on the ancillary data buffer. When calculating
+ * the number of items to show keep in mind:
+ * - The size of the cmsg structure
+ * - The size of one segment (the size of a Type 0 routing header)
+ * - When dividing add a fudge factor of one in case the
+ * dividend is not evenly divisible by the divisor
+ */
+ rthsize = (rh->ip6r_len + 1) * 8;
+ if (bufsize < (rthsize + CMSG_SPACE(0))) {
+ origsegs = segments;
+ size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
+ size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
+ segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
+ (size1 - size0) + 1;
+ warnx("segments truncated, showing only %d (total=%d)",
+ segments, origsegs);
+ }
+
+ for (i = 0; i < segments; i++) {
+ in6 = inet6_rth_getaddr(extbuf, i);
+ if (in6 == NULL)
+ printf(" [%d]<NULL>\n", i);
+ else {
+ if (!inet_ntop(AF_INET6, in6, ntopbuf,
+ sizeof(ntopbuf)))
+ strlcpy(ntopbuf, "?", sizeof(ntopbuf));
+ printf(" [%d]%s\n", i, ntopbuf);
+ }
+ }
+
+ return;
+
+}
+
+static int
+pr_bitrange(u_int32_t v, int soff, int ii)
+{
+ int off;
+ int i;
+
+ off = 0;
+ while (off < 32) {
+ /* shift till we have 0x01 */
+ if ((v & 0x01) == 0) {
+ if (ii > 1)
+ printf("-%u", soff + off - 1);
+ ii = 0;
+ switch (v & 0x0f) {
+ case 0x00:
+ v >>= 4;
+ off += 4;
+ continue;
+ case 0x08:
+ v >>= 3;
+ off += 3;
+ continue;
+ case 0x04: case 0x0c:
+ v >>= 2;
+ off += 2;
+ continue;
+ default:
+ v >>= 1;
+ off += 1;
+ continue;
+ }
+ }
+
+ /* we have 0x01 with us */
+ for (i = 0; i < 32 - off; i++) {
+ if ((v & (0x01 << i)) == 0)
+ break;
+ }
+ if (!ii)
+ printf(" %u", soff + off);
+ ii += i;
+ v >>= i; off += i;
+ }
+ return ii;
+}
+
+static void
+pr_suptypes(struct icmp6_nodeinfo *ni, size_t nilen)
+ /* ni->qtype must be SUPTYPES */
+{
+ size_t clen;
+ u_int32_t v;
+ const u_char *cp, *end;
+ u_int16_t cur;
+ struct cbit {
+ u_int16_t words; /*32bit count*/
+ u_int16_t skip;
+ } cbit;
+#define MAXQTYPES (1 << 16)
+ size_t off;
+ int b;
+
+ cp = (u_char *)(ni + 1);
+ end = ((u_char *)ni) + nilen;
+ cur = 0;
+ b = 0;
+
+ printf("NodeInfo Supported Qtypes");
+ if (options & F_VERBOSE) {
+ if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
+ printf(", compressed bitmap");
+ else
+ printf(", raw bitmap");
+ }
+
+ while (cp < end) {
+ clen = (size_t)(end - cp);
+ if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
+ if (clen == 0 || clen > MAXQTYPES / 8 ||
+ clen % sizeof(v)) {
+ printf("???");
+ return;
+ }
+ } else {
+ if (clen < sizeof(cbit) || clen % sizeof(v))
+ return;
+ memcpy(&cbit, cp, sizeof(cbit));
+ if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
+ clen)
+ return;
+ cp += sizeof(cbit);
+ clen = ntohs(cbit.words) * sizeof(v);
+ if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
+ MAXQTYPES)
+ return;
+ }
+
+ for (off = 0; off < clen; off += sizeof(v)) {
+ memcpy(&v, cp + off, sizeof(v));
+ v = (u_int32_t)ntohl(v);
+ b = pr_bitrange(v, (int)(cur + off * 8), b);
+ }
+ /* flush the remaining bits */
+ b = pr_bitrange(0, (int)(cur + off * 8), b);
+
+ cp += clen;
+ cur += clen * 8;
+ if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
+ cur += ntohs(cbit.skip) * 32;
+ }
+}
+
+static void
+pr_nodeaddr(struct icmp6_nodeinfo *ni, int nilen)
+ /* ni->qtype must be NODEADDR */
+{
+ u_char *cp = (u_char *)(ni + 1);
+ char ntop_buf[INET6_ADDRSTRLEN];
+ int withttl = 0;
+
+ nilen -= sizeof(struct icmp6_nodeinfo);
+
+ if (options & F_VERBOSE) {
+ switch (ni->ni_code) {
+ case ICMP6_NI_REFUSED:
+ (void)printf("refused");
+ break;
+ case ICMP6_NI_UNKNOWN:
+ (void)printf("unknown qtype");
+ break;
+ }
+ if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
+ (void)printf(" truncated");
+ }
+ putchar('\n');
+ if (nilen <= 0)
+ printf(" no address\n");
+
+ /*
+ * In icmp-name-lookups 05 and later, TTL of each returned address
+ * is contained in the resposne. We try to detect the version
+ * by the length of the data, but note that the detection algorithm
+ * is incomplete. We assume the latest draft by default.
+ */
+ if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
+ withttl = 1;
+ while (nilen > 0) {
+ u_int32_t ttl = 0;
+
+ if (withttl) {
+ uint32_t t;
+
+ memcpy(&t, cp, sizeof(t));
+ ttl = (u_int32_t)ntohl(t);
+ cp += sizeof(u_int32_t);
+ nilen -= sizeof(u_int32_t);
+ }
+
+ if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
+ NULL)
+ strlcpy(ntop_buf, "?", sizeof(ntop_buf));
+ printf(" %s", ntop_buf);
+ if (withttl) {
+ if (ttl == 0xffffffff) {
+ /*
+ * XXX: can this convention be applied to all
+ * type of TTL (i.e. non-ND TTL)?
+ */
+ printf("(TTL=infty)");
+ }
+ else
+ printf("(TTL=%u)", ttl);
+ }
+ putchar('\n');
+
+ nilen -= sizeof(struct in6_addr);
+ cp += sizeof(struct in6_addr);
+ }
+}
+
+static int
+get_hoplim(struct msghdr *mhdr)
+{
+ struct cmsghdr *cm;
+
+ for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
+ cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
+ if (cm->cmsg_len == 0)
+ return(-1);
+
+ if (cm->cmsg_level == IPPROTO_IPV6 &&
+ cm->cmsg_type == IPV6_HOPLIMIT &&
+ cm->cmsg_len == CMSG_LEN(sizeof(int))) {
+ int r;
+
+ memcpy(&r, CMSG_DATA(cm), sizeof(r));
+ return(r);
+ }
+ }
+
+ return(-1);
+}
+
+static struct in6_pktinfo *
+get_rcvpktinfo(struct msghdr *mhdr)
+{
+ static struct in6_pktinfo pi;
+ struct cmsghdr *cm;
+
+ for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
+ cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
+ if (cm->cmsg_len == 0)
+ return(NULL);
+
+ if (cm->cmsg_level == IPPROTO_IPV6 &&
+ cm->cmsg_type == IPV6_PKTINFO &&
+ cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo))) {
+ memcpy(&pi, CMSG_DATA(cm), sizeof(pi));
+ return(&pi);
+ }
+ }
+
+ return(NULL);
+}
+
+static int
+get_pathmtu(struct msghdr *mhdr)
+{
+#ifdef IPV6_RECVPATHMTU
+ struct cmsghdr *cm;
+ struct ip6_mtuinfo mtuctl;
+
+ for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
+ cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
+ if (cm->cmsg_len == 0)
+ return(0);
+
+ if (cm->cmsg_level == IPPROTO_IPV6 &&
+ cm->cmsg_type == IPV6_PATHMTU &&
+ cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
+ memcpy(&mtuctl, CMSG_DATA(cm), sizeof(mtuctl));
+
+ /*
+ * If the notified destination is different from
+ * the one we are pinging, just ignore the info.
+ * We check the scope ID only when both notified value
+ * and our own value have non-0 values, because we may
+ * have used the default scope zone ID for sending,
+ * in which case the scope ID value is 0.
+ */
+ if (!IN6_ARE_ADDR_EQUAL(&mtuctl.ip6m_addr.sin6_addr,
+ &dst.sin6_addr) ||
+ (mtuctl.ip6m_addr.sin6_scope_id &&
+ dst.sin6_scope_id &&
+ mtuctl.ip6m_addr.sin6_scope_id !=
+ dst.sin6_scope_id)) {
+ if ((options & F_VERBOSE) != 0) {
+ printf("path MTU for %s is notified. "
+ "(ignored)\n",
+ pr_addr((struct sockaddr *)&mtuctl.ip6m_addr,
+ sizeof(mtuctl.ip6m_addr)));
+ }
+ return(0);
+ }
+
+ /*
+ * Ignore an invalid MTU. XXX: can we just believe
+ * the kernel check?
+ */
+ if (mtuctl.ip6m_mtu < IPV6_MMTU)
+ return(0);
+
+ /* notification for our destination. return the MTU. */
+ return((int)mtuctl.ip6m_mtu);
+ }
+ }
+#endif
+ return(0);
+}
+
+/*
+ * onint --
+ * SIGINT handler.
+ */
+/* ARGSUSED */
+static void
+onint(int notused __unused)
+{
+ /*
+ * When doing reverse DNS lookups, the seenint flag might not
+ * be noticed for a while. Just exit if we get a second SIGINT.
+ */
+ if ((options & F_HOSTNAME) && seenint != 0)
+ _exit(nreceived ? 0 : 2);
+}
+
+/*
+ * summary --
+ * Print out statistics.
+ */
+static void
+summary(void)
+{
+
+ (void)printf("\n--- %s ping6 statistics ---\n", hostname);
+ (void)printf("%ld packets transmitted, ", ntransmitted);
+ (void)printf("%ld packets received, ", nreceived);
+ if (nrepeats)
+ (void)printf("+%ld duplicates, ", nrepeats);
+ if (ntransmitted) {
+ if (nreceived > ntransmitted)
+ (void)printf("-- somebody's duplicating packets!");
+ else
+ (void)printf("%.1f%% packet loss",
+ ((((double)ntransmitted - nreceived) * 100.0) /
+ ntransmitted));
+ }
+ if (nrcvtimeout)
+ printf(", %ld packets out of wait time", nrcvtimeout);
+ (void)putchar('\n');
+ if (nreceived && timing) {
+ /* Only display average to microseconds */
+ double num = nreceived + nrepeats;
+ double avg = tsum / num;
+ double dev = sqrt(tsumsq / num - avg * avg);
+ (void)printf(
+ "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
+ tmin, avg, tmax, dev);
+ (void)fflush(stdout);
+ }
+ (void)fflush(stdout);
+}
+
+/*subject type*/
+static const char *niqcode[] = {
+ "IPv6 address",
+ "DNS label", /*or empty*/
+ "IPv4 address",
+};
+
+/*result code*/
+static const char *nircode[] = {
+ "Success", "Refused", "Unknown",
+};
+
+
+/*
+ * pr_icmph --
+ * Print a descriptive string about an ICMP header.
+ */
+static void
+pr_icmph(struct icmp6_hdr *icp, u_char *end)
+{
+ char ntop_buf[INET6_ADDRSTRLEN];
+ struct nd_redirect *red;
+ struct icmp6_nodeinfo *ni;
+ char dnsname[MAXDNAME + 1];
+ const u_char *cp;
+ size_t l;
+
+ switch (icp->icmp6_type) {
+ case ICMP6_DST_UNREACH:
+ switch (icp->icmp6_code) {
+ case ICMP6_DST_UNREACH_NOROUTE:
+ (void)printf("No Route to Destination\n");
+ break;
+ case ICMP6_DST_UNREACH_ADMIN:
+ (void)printf("Destination Administratively "
+ "Unreachable\n");
+ break;
+ case ICMP6_DST_UNREACH_BEYONDSCOPE:
+ (void)printf("Destination Unreachable Beyond Scope\n");
+ break;
+ case ICMP6_DST_UNREACH_ADDR:
+ (void)printf("Destination Host Unreachable\n");
+ break;
+ case ICMP6_DST_UNREACH_NOPORT:
+ (void)printf("Destination Port Unreachable\n");
+ break;
+ default:
+ (void)printf("Destination Unreachable, Bad Code: %d\n",
+ icp->icmp6_code);
+ break;
+ }
+ /* Print returned IP header information */
+ pr_retip((struct ip6_hdr *)(icp + 1), end);
+ break;
+ case ICMP6_PACKET_TOO_BIG:
+ (void)printf("Packet too big mtu = %d\n",
+ (int)ntohl(icp->icmp6_mtu));
+ pr_retip((struct ip6_hdr *)(icp + 1), end);
+ break;
+ case ICMP6_TIME_EXCEEDED:
+ switch (icp->icmp6_code) {
+ case ICMP6_TIME_EXCEED_TRANSIT:
+ (void)printf("Time to live exceeded\n");
+ break;
+ case ICMP6_TIME_EXCEED_REASSEMBLY:
+ (void)printf("Frag reassembly time exceeded\n");
+ break;
+ default:
+ (void)printf("Time exceeded, Bad Code: %d\n",
+ icp->icmp6_code);
+ break;
+ }
+ pr_retip((struct ip6_hdr *)(icp + 1), end);
+ break;
+ case ICMP6_PARAM_PROB:
+ (void)printf("Parameter problem: ");
+ switch (icp->icmp6_code) {
+ case ICMP6_PARAMPROB_HEADER:
+ (void)printf("Erroneous Header ");
+ break;
+ case ICMP6_PARAMPROB_NEXTHEADER:
+ (void)printf("Unknown Nextheader ");
+ break;
+ case ICMP6_PARAMPROB_OPTION:
+ (void)printf("Unrecognized Option ");
+ break;
+ default:
+ (void)printf("Bad code(%d) ", icp->icmp6_code);
+ break;
+ }
+ (void)printf("pointer = 0x%02x\n",
+ (u_int32_t)ntohl(icp->icmp6_pptr));
+ pr_retip((struct ip6_hdr *)(icp + 1), end);
+ break;
+ case ICMP6_ECHO_REQUEST:
+ (void)printf("Echo Request");
+ /* XXX ID + Seq + Data */
+ break;
+ case ICMP6_ECHO_REPLY:
+ (void)printf("Echo Reply");
+ /* XXX ID + Seq + Data */
+ break;
+ case ICMP6_MEMBERSHIP_QUERY:
+ (void)printf("Listener Query");
+ break;
+ case ICMP6_MEMBERSHIP_REPORT:
+ (void)printf("Listener Report");
+ break;
+ case ICMP6_MEMBERSHIP_REDUCTION:
+ (void)printf("Listener Done");
+ break;
+ case ND_ROUTER_SOLICIT:
+ (void)printf("Router Solicitation");
+ break;
+ case ND_ROUTER_ADVERT:
+ (void)printf("Router Advertisement");
+ break;
+ case ND_NEIGHBOR_SOLICIT:
+ (void)printf("Neighbor Solicitation");
+ break;
+ case ND_NEIGHBOR_ADVERT:
+ (void)printf("Neighbor Advertisement");
+ break;
+ case ND_REDIRECT:
+ red = (struct nd_redirect *)icp;
+ (void)printf("Redirect\n");
+ if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
+ sizeof(ntop_buf)))
+ strlcpy(ntop_buf, "?", sizeof(ntop_buf));
+ (void)printf("Destination: %s", ntop_buf);
+ if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
+ sizeof(ntop_buf)))
+ strlcpy(ntop_buf, "?", sizeof(ntop_buf));
+ (void)printf(" New Target: %s", ntop_buf);
+ break;
+ case ICMP6_NI_QUERY:
+ (void)printf("Node Information Query");
+ /* XXX ID + Seq + Data */
+ ni = (struct icmp6_nodeinfo *)icp;
+ l = end - (u_char *)(ni + 1);
+ printf(", ");
+ switch (ntohs(ni->ni_qtype)) {
+ case NI_QTYPE_NOOP:
+ (void)printf("NOOP");
+ break;
+ case NI_QTYPE_SUPTYPES:
+ (void)printf("Supported qtypes");
+ break;
+ case NI_QTYPE_FQDN:
+ (void)printf("DNS name");
+ break;
+ case NI_QTYPE_NODEADDR:
+ (void)printf("nodeaddr");
+ break;
+ case NI_QTYPE_IPV4ADDR:
+ (void)printf("IPv4 nodeaddr");
+ break;
+ default:
+ (void)printf("unknown qtype");
+ break;
+ }
+ if (options & F_VERBOSE) {
+ switch (ni->ni_code) {
+ case ICMP6_NI_SUBJ_IPV6:
+ if (l == sizeof(struct in6_addr) &&
+ inet_ntop(AF_INET6, ni + 1, ntop_buf,
+ sizeof(ntop_buf)) != NULL) {
+ (void)printf(", subject=%s(%s)",
+ niqcode[ni->ni_code], ntop_buf);
+ } else {
+#if 1
+ /* backward compat to -W */
+ (void)printf(", oldfqdn");
+#else
+ (void)printf(", invalid");
+#endif
+ }
+ break;
+ case ICMP6_NI_SUBJ_FQDN:
+ if (end == (u_char *)(ni + 1)) {
+ (void)printf(", no subject");
+ break;
+ }
+ printf(", subject=%s", niqcode[ni->ni_code]);
+ cp = (const u_char *)(ni + 1);
+ cp = dnsdecode(cp, end, NULL, dnsname,
+ sizeof(dnsname));
+ if (cp != NULL)
+ printf("(%s)", dnsname);
+ else
+ printf("(invalid)");
+ break;
+ case ICMP6_NI_SUBJ_IPV4:
+ if (l == sizeof(struct in_addr) &&
+ inet_ntop(AF_INET, ni + 1, ntop_buf,
+ sizeof(ntop_buf)) != NULL) {
+ (void)printf(", subject=%s(%s)",
+ niqcode[ni->ni_code], ntop_buf);
+ } else
+ (void)printf(", invalid");
+ break;
+ default:
+ (void)printf(", invalid");
+ break;
+ }
+ }
+ break;
+ case ICMP6_NI_REPLY:
+ (void)printf("Node Information Reply");
+ /* XXX ID + Seq + Data */
+ ni = (struct icmp6_nodeinfo *)icp;
+ printf(", ");
+ switch (ntohs(ni->ni_qtype)) {
+ case NI_QTYPE_NOOP:
+ (void)printf("NOOP");
+ break;
+ case NI_QTYPE_SUPTYPES:
+ (void)printf("Supported qtypes");
+ break;
+ case NI_QTYPE_FQDN:
+ (void)printf("DNS name");
+ break;
+ case NI_QTYPE_NODEADDR:
+ (void)printf("nodeaddr");
+ break;
+ case NI_QTYPE_IPV4ADDR:
+ (void)printf("IPv4 nodeaddr");
+ break;
+ default:
+ (void)printf("unknown qtype");
+ break;
+ }
+ if (options & F_VERBOSE) {
+ if (ni->ni_code > nitems(nircode))
+ printf(", invalid");
+ else
+ printf(", %s", nircode[ni->ni_code]);
+ }
+ break;
+ default:
+ (void)printf("Bad ICMP type: %d", icp->icmp6_type);
+ }
+}
+
+/*
+ * pr_iph --
+ * Print an IP6 header.
+ */
+static void
+pr_iph(struct ip6_hdr *ip6)
+{
+ u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
+ u_int8_t tc;
+ char ntop_buf[INET6_ADDRSTRLEN];
+
+ tc = *(&ip6->ip6_vfc + 1); /* XXX */
+ tc = (tc >> 4) & 0x0f;
+ tc |= (ip6->ip6_vfc << 4);
+
+ printf("Vr TC Flow Plen Nxt Hlim\n");
+ printf(" %1x %02x %05x %04x %02x %02x\n",
+ (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
+ ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
+ if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
+ strlcpy(ntop_buf, "?", sizeof(ntop_buf));
+ printf("%s->", ntop_buf);
+ if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
+ strlcpy(ntop_buf, "?", sizeof(ntop_buf));
+ printf("%s\n", ntop_buf);
+}
+
+/*
+ * pr_addr --
+ * Return an ascii host address as a dotted quad and optionally with
+ * a hostname.
+ */
+static const char *
+pr_addr(struct sockaddr *addr, int addrlen)
+{
+ static char buf[NI_MAXHOST];
+ int flag = 0;
+
+ if ((options & F_HOSTNAME) == 0)
+ flag |= NI_NUMERICHOST;
+
+ if (cap_getnameinfo(capdns, addr, addrlen, buf, sizeof(buf), NULL, 0,
+ flag) == 0)
+ return (buf);
+ else
+ return "?";
+}
+
+/*
+ * pr_retip --
+ * Dump some info on a returned (via ICMPv6) IPv6 packet.
+ */
+static void
+pr_retip(struct ip6_hdr *ip6, u_char *end)
+{
+ u_char *cp = (u_char *)ip6, nh;
+ int hlen;
+
+ if ((size_t)(end - (u_char *)ip6) < sizeof(*ip6)) {
+ printf("IP6");
+ goto trunc;
+ }
+ pr_iph(ip6);
+ hlen = sizeof(*ip6);
+
+ nh = ip6->ip6_nxt;
+ cp += hlen;
+ while (end - cp >= 8) {
+ struct ah ah;
+
+ switch (nh) {
+ case IPPROTO_HOPOPTS:
+ printf("HBH ");
+ hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
+ nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
+ break;
+ case IPPROTO_DSTOPTS:
+ printf("DSTOPT ");
+ hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
+ nh = ((struct ip6_dest *)cp)->ip6d_nxt;
+ break;
+ case IPPROTO_FRAGMENT:
+ printf("FRAG ");
+ hlen = sizeof(struct ip6_frag);
+ nh = ((struct ip6_frag *)cp)->ip6f_nxt;
+ break;
+ case IPPROTO_ROUTING:
+ printf("RTHDR ");
+ hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
+ nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
+ break;
+#ifdef IPSEC
+ case IPPROTO_AH:
+ printf("AH ");
+ memcpy(&ah, cp, sizeof(ah));
+ hlen = (ah.ah_len+2) << 2;
+ nh = ah.ah_nxt;
+ break;
+#endif
+ case IPPROTO_ICMPV6:
+ printf("ICMP6: type = %d, code = %d\n",
+ *cp, *(cp + 1));
+ return;
+ case IPPROTO_ESP:
+ printf("ESP\n");
+ return;
+ case IPPROTO_TCP:
+ printf("TCP: from port %u, to port %u (decimal)\n",
+ (*cp * 256 + *(cp + 1)),
+ (*(cp + 2) * 256 + *(cp + 3)));
+ return;
+ case IPPROTO_UDP:
+ printf("UDP: from port %u, to port %u (decimal)\n",
+ (*cp * 256 + *(cp + 1)),
+ (*(cp + 2) * 256 + *(cp + 3)));
+ return;
+ default:
+ printf("Unknown Header(%d)\n", nh);
+ return;
+ }
+
+ if ((cp += hlen) >= end)
+ goto trunc;
+ }
+ if (end - cp < 8)
+ goto trunc;
+
+ putchar('\n');
+ return;
+
+ trunc:
+ printf("...\n");
+ return;
+}
+
+static void
+fill(char *bp, char *patp)
+{
+ int ii, jj, kk;
+ int pat[16];
+ char *cp;
+
+ for (cp = patp; *cp; cp++)
+ if (!isxdigit(*cp))
+ errx(1, "patterns must be specified as hex digits");
+ ii = sscanf(patp,
+ "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
+ &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
+ &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
+ &pat[13], &pat[14], &pat[15]);
+
+/* xxx */
+ if (ii > 0)
+ for (kk = 0;
+ (size_t)kk <= MAXDATALEN - 8 + sizeof(struct tv32) + ii;
+ kk += ii)
+ for (jj = 0; jj < ii; ++jj)
+ bp[jj + kk] = pat[jj];
+ if (!(options & F_QUIET)) {
+ (void)printf("PATTERN: 0x");
+ for (jj = 0; jj < ii; ++jj)
+ (void)printf("%02x", bp[jj] & 0xFF);
+ (void)printf("\n");
+ }
+}
+
+#ifdef IPSEC
+#ifdef IPSEC_POLICY_IPSEC
+static int
+setpolicy(int so __unused, char *policy)
+{
+ char *buf;
+
+ if (policy == NULL)
+ return 0; /* ignore */
+
+ buf = ipsec_set_policy(policy, strlen(policy));
+ if (buf == NULL)
+ errx(1, "%s", ipsec_strerror());
+ if (setsockopt(ssend, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
+ ipsec_get_policylen(buf)) < 0)
+ warnx("Unable to set IPsec policy");
+ free(buf);
+
+ return 0;
+}
+#endif
+#endif
+
+static char *
+nigroup(char *name, int nig_oldmcprefix)
+{
+ char *p;
+ char *q;
+ MD5_CTX ctxt;
+ u_int8_t digest[16];
+ u_int8_t c;
+ size_t l;
+ char hbuf[NI_MAXHOST];
+ struct in6_addr in6;
+ int valid;
+
+ p = strchr(name, '.');
+ if (!p)
+ p = name + strlen(name);
+ l = p - name;
+ if (l > 63 || l > sizeof(hbuf) - 1)
+ return NULL; /*label too long*/
+ strncpy(hbuf, name, l);
+ hbuf[(int)l] = '\0';
+
+ for (q = name; *q; q++) {
+ if (isupper(*(unsigned char *)q))
+ *q = tolower(*(unsigned char *)q);
+ }
+
+ /* generate 16 bytes of pseudo-random value. */
+ memset(&ctxt, 0, sizeof(ctxt));
+ MD5Init(&ctxt);
+ c = l & 0xff;
+ MD5Update(&ctxt, &c, sizeof(c));
+ MD5Update(&ctxt, (unsigned char *)name, l);
+ MD5Final(digest, &ctxt);
+
+ if (nig_oldmcprefix) {
+ /* draft-ietf-ipngwg-icmp-name-lookup */
+ valid = inet_pton(AF_INET6, "ff02::2:0000:0000", &in6);
+ } else {
+ /* RFC 4620 */
+ valid = inet_pton(AF_INET6, "ff02::2:ff00:0000", &in6);
+ }
+ if (valid != 1)
+ return NULL; /*XXX*/
+
+ if (nig_oldmcprefix) {
+ /* draft-ietf-ipngwg-icmp-name-lookup */
+ bcopy(digest, &in6.s6_addr[12], 4);
+ } else {
+ /* RFC 4620 */
+ bcopy(digest, &in6.s6_addr[13], 3);
+ }
+
+ if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
+ return NULL;
+
+ return strdup(hbuf);
+}
+
+static cap_channel_t *
+capdns_setup(void)
+{
+ cap_channel_t *capcas, *capdnsloc;
+#ifdef WITH_CASPER
+ const char *types[2];
+ int families[1];
+#endif
+ capcas = cap_init();
+ if (capcas == NULL)
+ err(1, "unable to create casper process");
+ capdnsloc = cap_service_open(capcas, "system.dns");
+ /* Casper capability no longer needed. */
+ cap_close(capcas);
+ if (capdnsloc == NULL)
+ err(1, "unable to open system.dns service");
+#ifdef WITH_CASPER
+ types[0] = "NAME2ADDR";
+ types[1] = "ADDR2NAME";
+ if (cap_dns_type_limit(capdnsloc, types, nitems(types)) < 0)
+ err(1, "unable to limit access to system.dns service");
+ families[0] = AF_INET6;
+ if (cap_dns_family_limit(capdnsloc, families, nitems(families)) < 0)
+ err(1, "unable to limit access to system.dns service");
+#endif
+ return (capdnsloc);
+}
Index: head/sbin/ping/tests/Makefile
===================================================================
--- head/sbin/ping/tests/Makefile
+++ head/sbin/ping/tests/Makefile
@@ -7,5 +7,6 @@
ATF_TESTS_SH+= ping_test
${PACKAGE}FILES+= ping_c1_s56_t1.out
+${PACKAGE}FILES+= ping_6_c1_s8_t1.out
.include <bsd.test.mk>
Index: head/sbin/ping/tests/ping_6_c1_s8_t1.out
===================================================================
--- head/sbin/ping/tests/ping_6_c1_s8_t1.out
+++ head/sbin/ping/tests/ping_6_c1_s8_t1.out
@@ -0,0 +1,6 @@
+PING6(56=40+8+8 bytes) ::1 --> ::1
+16 bytes from ::1, icmp_seq=0 hlim= time= ms
+
+--- localhost ping6 statistics ---
+1 packets transmitted, 1 packets received, 0.0% packet loss
+round-trip min/avg/max/std-dev = /// ms
Index: head/sbin/ping/tests/ping_test.sh
===================================================================
--- head/sbin/ping/tests/ping_test.sh
+++ head/sbin/ping/tests/ping_test.sh
@@ -36,12 +36,26 @@
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 @@
-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"
}
Index: head/sbin/ping6/Makefile
===================================================================
--- head/sbin/ping6/Makefile
+++ head/sbin/ping6/Makefile
@@ -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>
Index: head/sbin/ping6/Makefile.depend
===================================================================
--- head/sbin/ping6/Makefile.depend
+++ head/sbin/ping6/Makefile.depend
@@ -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
Index: head/sbin/ping6/ping6.8
===================================================================
--- head/sbin/ping6/ping6.8
+++ head/sbin/ping6/ping6.8
@@ -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.
Index: head/sbin/ping6/ping6.c
===================================================================
--- head/sbin/ping6/ping6.c
+++ head/sbin/ping6/ping6.c
@@ -1,2902 +0,0 @@
-/* $KAME: ping6.c,v 1.169 2003/07/25 06:01:47 itojun Exp $ */
-
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * 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.
- */
-
-/* BSDI ping.c,v 2.3 1996/01/21 17:56:50 jch Exp */
-
-/*
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Muuss.
- *
- * 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.
- */
-
-#if 0
-#ifndef lint
-static const char copyright[] =
-"@(#) Copyright (c) 1989, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
-#endif /* not lint */
-#endif
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
- * measure round-trip-delays and packet loss across network paths.
- *
- * Author -
- * Mike Muuss
- * U. S. Army Ballistic Research Laboratory
- * December, 1983
- *
- * Status -
- * Public Domain. Distribution Unlimited.
- * Bugs -
- * More statistics could always be gathered.
- * This program has to run SUID to ROOT to access the ICMP socket.
- */
-/*
- * NOTE:
- * USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
- * as IPV6_PKTINFO. Some people object it (sin6_scope_id specifies *link*
- * while IPV6_PKTINFO specifies *interface*. Link is defined as collection of
- * network attached to 1 or more interfaces)
- */
-
-#include <sys/param.h>
-#include <sys/capsicum.h>
-#include <sys/uio.h>
-#include <sys/socket.h>
-
-#include <net/if.h>
-#include <net/route.h>
-
-#include <netinet/in.h>
-#include <netinet/ip6.h>
-#include <netinet/icmp6.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <netdb.h>
-
-#include <capsicum_helpers.h>
-#include <casper/cap_dns.h>
-#include <libcasper.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <math.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <time.h>
-#include <unistd.h>
-
-#ifdef IPSEC
-#include <netipsec/ah.h>
-#include <netipsec/ipsec.h>
-#endif
-
-#include <md5.h>
-
-struct tv32 {
- u_int32_t tv32_sec;
- u_int32_t tv32_nsec;
-};
-
-#define MAXPACKETLEN 131072
-#define IP6LEN 40
-#define ICMP6ECHOLEN 8 /* icmp echo header len excluding time */
-#define ICMP6ECHOTMLEN sizeof(struct tv32)
-#define ICMP6_NIQLEN (ICMP6ECHOLEN + 8)
-# define CONTROLLEN 10240 /* ancillary data buffer size RFC3542 20.1 */
-/* FQDN case, 64 bits of nonce + 32 bits ttl */
-#define ICMP6_NIRLEN (ICMP6ECHOLEN + 12)
-#define EXTRA 256 /* for AH and various other headers. weird. */
-#define DEFDATALEN ICMP6ECHOTMLEN
-#define MAXDATALEN MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
-#define NROUTES 9 /* number of record route slots */
-#define MAXWAIT 10000 /* max ms to wait for response */
-#define MAXALARM (60 * 60) /* max seconds for alarm timeout */
-
-#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
-#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
-#define SET(bit) (A(bit) |= B(bit))
-#define CLR(bit) (A(bit) &= (~B(bit)))
-#define TST(bit) (A(bit) & B(bit))
-
-#define F_FLOOD 0x0001
-#define F_INTERVAL 0x0002
-#define F_PINGFILLED 0x0008
-#define F_QUIET 0x0010
-#define F_RROUTE 0x0020
-#define F_SO_DEBUG 0x0040
-#define F_VERBOSE 0x0100
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-#define F_POLICY 0x0400
-#else
-#define F_AUTHHDR 0x0200
-#define F_ENCRYPT 0x0400
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif /*IPSEC*/
-#define F_NODEADDR 0x0800
-#define F_FQDN 0x1000
-#define F_INTERFACE 0x2000
-#define F_SRCADDR 0x4000
-#define F_HOSTNAME 0x10000
-#define F_FQDNOLD 0x20000
-#define F_NIGROUP 0x40000
-#define F_SUPTYPES 0x80000
-#define F_NOMINMTU 0x100000
-#define F_ONCE 0x200000
-#define F_AUDIBLE 0x400000
-#define F_MISSED 0x800000
-#define F_DONTFRAG 0x1000000
-#define F_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
-#define F_WAITTIME 0x2000000
-static u_int options;
-
-#define IN6LEN sizeof(struct in6_addr)
-#define SA6LEN sizeof(struct sockaddr_in6)
-#define DUMMY_PORT 10101
-
-#define SIN6(s) ((struct sockaddr_in6 *)(s))
-
-/*
- * MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
- * number of received sequence numbers we can keep track of. Change 128
- * to 8192 for complete accuracy...
- */
-#define MAX_DUP_CHK (8 * 8192)
-static int mx_dup_ck = MAX_DUP_CHK;
-static char rcvd_tbl[MAX_DUP_CHK / 8];
-
-static struct sockaddr_in6 dst; /* who to ping6 */
-static struct sockaddr_in6 src; /* src addr of this packet */
-static socklen_t srclen;
-static size_t datalen = DEFDATALEN;
-static int ssend; /* send socket file descriptor */
-static int srecv; /* receive socket file descriptor */
-static u_char outpack[MAXPACKETLEN];
-static char BSPACE = '\b'; /* characters written for flood */
-static char BBELL = '\a'; /* characters written for AUDIBLE */
-static char DOT = '.';
-static char *hostname;
-static int ident; /* process id to identify our packets */
-static u_int8_t nonce[8]; /* nonce field for node information */
-static int hoplimit = -1; /* hoplimit */
-static int tclass = -1; /* traffic class */
-static int pcp = -2; /* vlan priority code point */
-static u_char *packet = NULL;
-static cap_channel_t *capdns;
-
-/* counters */
-static long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
-static long npackets; /* max packets to transmit */
-static long nreceived; /* # of packets we got back */
-static long nrepeats; /* number of duplicates */
-static long ntransmitted; /* sequence # for outbound packets = #sent */
-static long ntransmitfailures; /* number of transmit failures */
-static int interval = 1000; /* interval between packets in ms */
-static int waittime = MAXWAIT; /* timeout for each packet */
-static long nrcvtimeout = 0; /* # of packets we got back after waittime */
-
-/* timing */
-static int timing; /* flag to do timing */
-static double tmin = 999999999.0; /* minimum round trip time */
-static double tmax = 0.0; /* maximum round trip time */
-static double tsum = 0.0; /* sum of all times, for doing average */
-static double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
-
-/* for node addresses */
-static u_short naflags;
-
-/* for ancillary data(advanced API) */
-static struct msghdr smsghdr;
-static struct iovec smsgiov;
-static char *scmsg = 0;
-
-static volatile sig_atomic_t seenint;
-#ifdef SIGINFO
-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 *);
-static int get_pathmtu(struct msghdr *);
-static struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
-static void onsignal(int);
-static void onint(int);
-static size_t pingerlen(void);
-static int pinger(void);
-static const char *pr_addr(struct sockaddr *, int);
-static void pr_icmph(struct icmp6_hdr *, u_char *);
-static void pr_iph(struct ip6_hdr *);
-static void pr_suptypes(struct icmp6_nodeinfo *, size_t);
-static void pr_nodeaddr(struct icmp6_nodeinfo *, int);
-static int myechoreply(const struct icmp6_hdr *);
-static int mynireply(const struct icmp6_nodeinfo *);
-static const char *dnsdecode(const u_char *, const u_char *, const u_char *,
- char *, size_t);
-static void pr_pack(u_char *, int, struct msghdr *);
-static void pr_exthdrs(struct msghdr *);
-static void pr_ip6opt(void *, size_t);
-static void pr_rthdr(void *, size_t);
-static int pr_bitrange(u_int32_t, int, int);
-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[])
-{
- struct timespec last, intvl;
- struct sockaddr_in6 from, *sin6;
- struct addrinfo hints, *res;
- struct sigaction si_sa;
- int cc, i;
- int almost_done, ch, hold, packlen, preload, optval, error;
- int nig_oldmcprefix = -1;
- u_char *datap;
- char *e, *target, *ifname = NULL, *gateway = NULL;
- int ip6optlen = 0;
- struct cmsghdr *scmsgp = NULL;
- /* For control (ancillary) data received from recvmsg() */
- u_char cm[CONTROLLEN];
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
- u_long lsockbufsize;
- int sockbufsize = 0;
-#endif
- int usepktinfo = 0;
- struct in6_pktinfo pktinfo;
- char *cmsg_pktinfo = NULL;
- struct ip6_rthdr *rthdr = NULL;
-#ifdef IPSEC_POLICY_IPSEC
- char *policy_in = NULL;
- char *policy_out = NULL;
-#endif
- double t;
- u_long alarmtimeout;
- size_t rthlen;
-#ifdef IPV6_USE_MIN_MTU
- int mflag = 0;
-#endif
- cap_rights_t rights_srecv;
- cap_rights_t rights_ssend;
- cap_rights_t rights_stdin;
-
- /* just to be sure */
- memset(&smsghdr, 0, sizeof(smsghdr));
- memset(&smsgiov, 0, sizeof(smsgiov));
- memset(&pktinfo, 0, sizeof(pktinfo));
-
- intvl.tv_sec = interval / 1000;
- intvl.tv_nsec = interval % 1000 * 1000000;
-
- alarmtimeout = preload = 0;
- datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
- capdns = capdns_setup();
-#ifndef IPSEC
-#define ADDOPTS
-#else
-#ifdef IPSEC_POLICY_IPSEC
-#define ADDOPTS "P:"
-#else
-#define ADDOPTS "ZE"
-#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) {
-#undef ADDOPTS
- switch (ch) {
- case 'k':
- {
- char *cp;
-
- options &= ~F_NOUSERDATA;
- options |= F_NODEADDR;
- for (cp = optarg; *cp != '\0'; cp++) {
- switch (*cp) {
- case 'a':
- naflags |= NI_NODEADDR_FLAG_ALL;
- break;
- case 'c':
- case 'C':
- naflags |= NI_NODEADDR_FLAG_COMPAT;
- break;
- case 'l':
- case 'L':
- naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
- break;
- case 's':
- case 'S':
- naflags |= NI_NODEADDR_FLAG_SITELOCAL;
- break;
- case 'g':
- case 'G':
- naflags |= NI_NODEADDR_FLAG_GLOBAL;
- break;
- case 'A': /* experimental. not in the spec */
-#ifdef NI_NODEADDR_FLAG_ANYCAST
- naflags |= NI_NODEADDR_FLAG_ANYCAST;
- break;
-#else
- errx(1,
-"-a A is not supported on the platform");
- /*NOTREACHED*/
-#endif
- default:
- usage();
- /*NOTREACHED*/
- }
- }
- break;
- }
- case 'b':
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
- errno = 0;
- e = NULL;
- lsockbufsize = strtoul(optarg, &e, 10);
- sockbufsize = (int)lsockbufsize;
- if (errno || !*optarg || *e ||
- lsockbufsize > INT_MAX)
- errx(1, "invalid socket buffer size");
-#else
- errx(1,
-"-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
-#endif
- break;
- case 'C': /* vlan priority code point */
- pcp = strtol(optarg, &e, 10);
- if (*optarg == '\0' || *e != '\0')
- errx(1, "illegal vlan pcp %s", optarg);
- if (7 < pcp || pcp < -1)
- errx(1, "illegal vlan pcp -- %s", optarg);
- break;
- case 'c':
- npackets = strtol(optarg, &e, 10);
- if (npackets <= 0 || *optarg == '\0' || *e != '\0')
- errx(1,
- "illegal number of packets -- %s", optarg);
- break;
- case 'D':
- options |= F_DONTFRAG;
- break;
- case 'd':
- options |= F_SO_DEBUG;
- break;
- case 'f':
- if (getuid()) {
- errno = EPERM;
- errx(1, "Must be superuser to flood ping");
- }
- options |= F_FLOOD;
- setbuf(stdout, (char *)NULL);
- break;
- case 'e':
- gateway = optarg;
- break;
- case 'H':
- options |= F_HOSTNAME;
- break;
- case 'm': /* hoplimit */
- hoplimit = strtol(optarg, &e, 10);
- if (*optarg == '\0' || *e != '\0')
- errx(1, "illegal hoplimit %s", optarg);
- if (255 < hoplimit || hoplimit < -1)
- errx(1,
- "illegal hoplimit -- %s", optarg);
- break;
- case 'I':
- ifname = optarg;
- options |= F_INTERFACE;
-#ifndef USE_SIN6_SCOPE_ID
- usepktinfo++;
-#endif
- break;
- case 'i': /* wait between sending packets */
- t = strtod(optarg, &e);
- if (*optarg == '\0' || *e != '\0')
- errx(1, "illegal timing interval %s", optarg);
- if (t < 1 && getuid()) {
- errx(1, "%s: only root may use interval < 1s",
- strerror(EPERM));
- }
- intvl.tv_sec = (time_t)t;
- intvl.tv_nsec =
- (long)((t - intvl.tv_sec) * 1000000000);
- if (intvl.tv_sec < 0)
- errx(1, "illegal timing interval %s", optarg);
- /* less than 1/hz does not make sense */
- if (intvl.tv_sec == 0 && intvl.tv_nsec < 1000) {
- warnx("too small interval, raised to .000001");
- intvl.tv_nsec = 1000;
- }
- options |= F_INTERVAL;
- break;
- case 'l':
- if (getuid()) {
- errno = EPERM;
- errx(1, "Must be superuser to preload");
- }
- preload = strtol(optarg, &e, 10);
- if (preload < 0 || *optarg == '\0' || *e != '\0')
- errx(1, "illegal preload value -- %s", optarg);
- break;
- case 'u':
-#ifdef IPV6_USE_MIN_MTU
- mflag++;
- break;
-#else
- errx(1, "-%c is not supported on this platform", ch);
- /*NOTREACHED*/
-#endif
- case 'n':
- options &= ~F_HOSTNAME;
- break;
- case 'N':
- options |= F_NIGROUP;
- nig_oldmcprefix++;
- break;
- case 'o':
- options |= F_ONCE;
- break;
- case 'p': /* fill buffer with user pattern */
- options |= F_PINGFILLED;
- fill((char *)datap, optarg);
- break;
- case 'q':
- options |= F_QUIET;
- break;
- case 'a':
- options |= F_AUDIBLE;
- break;
- case 'A':
- options |= F_MISSED;
- break;
- case 'S':
- memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_flags = AI_NUMERICHOST; /* allow hostname? */
- hints.ai_family = AF_INET6;
- hints.ai_socktype = SOCK_RAW;
- hints.ai_protocol = IPPROTO_ICMPV6;
-
- error = cap_getaddrinfo(capdns, optarg, NULL, &hints, &res);
- if (error) {
- errx(1, "invalid source address: %s",
- gai_strerror(error));
- }
- /*
- * res->ai_family must be AF_INET6 and res->ai_addrlen
- * must be sizeof(src).
- */
- memcpy(&src, res->ai_addr, res->ai_addrlen);
- srclen = res->ai_addrlen;
- freeaddrinfo(res);
- options |= F_SRCADDR;
- break;
- case 's': /* size of packet to send */
- datalen = strtol(optarg, &e, 10);
- if (datalen <= 0 || *optarg == '\0' || *e != '\0')
- errx(1, "illegal datalen value -- %s", optarg);
- if (datalen > MAXDATALEN) {
- errx(1,
- "datalen value too large, maximum is %d",
- MAXDATALEN);
- }
- break;
- case 'O':
- options &= ~F_NOUSERDATA;
- options |= F_SUPTYPES;
- break;
- case 'v':
- options |= F_VERBOSE;
- break;
- case 'y':
- options &= ~F_NOUSERDATA;
- options |= F_FQDN;
- break;
- case 'Y':
- options &= ~F_NOUSERDATA;
- options |= F_FQDNOLD;
- break;
- case 'W':
- t = strtod(optarg, &e);
- if (*e || e == optarg || t > (double)INT_MAX)
- err(EX_USAGE, "invalid timing interval: `%s'",
- optarg);
- options |= F_WAITTIME;
- waittime = (int)t;
- break;
- case 't':
- alarmtimeout = strtoul(optarg, &e, 0);
- if ((alarmtimeout < 1) || (alarmtimeout == ULONG_MAX))
- errx(EX_USAGE, "invalid timeout: `%s'",
- optarg);
- if (alarmtimeout > MAXALARM)
- errx(EX_USAGE, "invalid timeout: `%s' > %d",
- optarg, MAXALARM);
- {
- struct itimerval itv;
-
- timerclear(&itv.it_interval);
- timerclear(&itv.it_value);
- itv.it_value.tv_sec = (time_t)alarmtimeout;
- if (setitimer(ITIMER_REAL, &itv, NULL) != 0)
- err(1, "setitimer");
- }
- break;
- case 'z': /* traffic class */
- tclass = strtol(optarg, &e, 10);
- if (*optarg == '\0' || *e != '\0')
- errx(1, "illegal traffic class %s", optarg);
- if (255 < tclass || tclass < -1)
- errx(1,
- "illegal traffic class -- %s", optarg);
- break;
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
- case 'P':
- options |= F_POLICY;
- if (!strncmp("in", optarg, 2)) {
- if ((policy_in = strdup(optarg)) == NULL)
- errx(1, "strdup");
- } else if (!strncmp("out", optarg, 3)) {
- if ((policy_out = strdup(optarg)) == NULL)
- errx(1, "strdup");
- } else
- errx(1, "invalid security policy");
- break;
-#else
- case 'Z':
- options |= F_AUTHHDR;
- break;
- case 'E':
- options |= F_ENCRYPT;
- break;
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif /*IPSEC*/
- default:
- usage();
- /*NOTREACHED*/
- }
- }
-
- argc -= optind;
- argv += optind;
-
- if (argc < 1) {
- usage();
- /*NOTREACHED*/
- }
-
- if (argc > 1) {
-#ifdef IPV6_RECVRTHDR /* 2292bis */
- rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0,
- argc - 1));
-#else /* RFC2292 */
- rthlen = inet6_rthdr_space(IPV6_RTHDR_TYPE_0, argc - 1);
-#endif
- if (rthlen == 0) {
- errx(1, "too many intermediate hops");
- /*NOTREACHED*/
- }
- ip6optlen += rthlen;
- }
-
- if (options & F_NIGROUP) {
- target = nigroup(argv[argc - 1], nig_oldmcprefix);
- if (target == NULL) {
- usage();
- /*NOTREACHED*/
- }
- } else
- target = argv[argc - 1];
-
- /* cap_getaddrinfo */
- memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_flags = AI_CANONNAME;
- hints.ai_family = AF_INET6;
- hints.ai_socktype = SOCK_RAW;
- hints.ai_protocol = IPPROTO_ICMPV6;
-
- error = cap_getaddrinfo(capdns, target, NULL, &hints, &res);
- if (error)
- errx(1, "%s", gai_strerror(error));
- if (res->ai_canonname)
- hostname = strdup(res->ai_canonname);
- else
- hostname = target;
-
- if (!res->ai_addr)
- errx(1, "cap_getaddrinfo failed");
-
- (void)memcpy(&dst, res->ai_addr, res->ai_addrlen);
-
- if ((ssend = socket(res->ai_family, res->ai_socktype,
- res->ai_protocol)) < 0)
- err(1, "socket ssend");
- if ((srecv = socket(res->ai_family, res->ai_socktype,
- res->ai_protocol)) < 0)
- err(1, "socket srecv");
- freeaddrinfo(res);
-
- /* set the source address if specified. */
- if ((options & F_SRCADDR) != 0) {
- /* properly fill sin6_scope_id */
- if (IN6_IS_ADDR_LINKLOCAL(&src.sin6_addr) && (
- IN6_IS_ADDR_LINKLOCAL(&dst.sin6_addr) ||
- IN6_IS_ADDR_MC_LINKLOCAL(&dst.sin6_addr) ||
- IN6_IS_ADDR_MC_NODELOCAL(&dst.sin6_addr))) {
- if (src.sin6_scope_id == 0)
- src.sin6_scope_id = dst.sin6_scope_id;
- if (dst.sin6_scope_id == 0)
- dst.sin6_scope_id = src.sin6_scope_id;
- }
- if (bind(ssend, (struct sockaddr *)&src, srclen) != 0)
- err(1, "bind");
- }
- /* set the gateway (next hop) if specified */
- if (gateway) {
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_INET6;
- hints.ai_socktype = SOCK_RAW;
- hints.ai_protocol = IPPROTO_ICMPV6;
-
- error = cap_getaddrinfo(capdns, gateway, NULL, &hints, &res);
- if (error) {
- errx(1, "cap_getaddrinfo for the gateway %s: %s",
- gateway, gai_strerror(error));
- }
- if (res->ai_next && (options & F_VERBOSE))
- warnx("gateway resolves to multiple addresses");
-
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_NEXTHOP,
- res->ai_addr, res->ai_addrlen)) {
- err(1, "setsockopt(IPV6_NEXTHOP)");
- }
-
- freeaddrinfo(res);
- }
-
- /*
- * let the kerel pass extension headers of incoming packets,
- * for privileged socket options
- */
- if ((options & F_VERBOSE) != 0) {
- int opton = 1;
-
-#ifdef IPV6_RECVHOPOPTS
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_RECVHOPOPTS)");
-#else /* old adv. API */
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_HOPOPTS)");
-#endif
-#ifdef IPV6_RECVDSTOPTS
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_RECVDSTOPTS)");
-#else /* old adv. API */
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_DSTOPTS)");
-#endif
-#ifdef IPV6_RECVRTHDRDSTOPTS
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
-#endif
- }
-
- /* revoke root privilege */
- if (seteuid(getuid()) != 0)
- err(1, "seteuid() failed");
- if (setuid(getuid()) != 0)
- err(1, "setuid() failed");
-
- if ((options & F_FLOOD) && (options & F_INTERVAL))
- errx(1, "-f and -i incompatible options");
-
- if ((options & F_NOUSERDATA) == 0) {
- if (datalen >= sizeof(struct tv32)) {
- /* we can time transfer */
- timing = 1;
- } else
- timing = 0;
- /* in F_VERBOSE case, we may get non-echoreply packets*/
- if (options & F_VERBOSE)
- packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
- else
- packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
- } else {
- /* suppress timing for node information query */
- timing = 0;
- datalen = 2048;
- packlen = 2048 + IP6LEN + ICMP6ECHOLEN + EXTRA;
- }
-
- if (!(packet = (u_char *)malloc((u_int)packlen)))
- err(1, "Unable to allocate packet");
- if (!(options & F_PINGFILLED))
- for (i = ICMP6ECHOLEN; i < packlen; ++i)
- *datap++ = i;
-
- ident = getpid() & 0xFFFF;
- arc4random_buf(nonce, sizeof(nonce));
- optval = 1;
- if (options & F_DONTFRAG)
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_DONTFRAG,
- &optval, sizeof(optval)) == -1)
- err(1, "IPV6_DONTFRAG");
- hold = 1;
-
- if (options & F_SO_DEBUG) {
- (void)setsockopt(ssend, SOL_SOCKET, SO_DEBUG, (char *)&hold,
- sizeof(hold));
- (void)setsockopt(srecv, SOL_SOCKET, SO_DEBUG, (char *)&hold,
- sizeof(hold));
- }
- optval = IPV6_DEFHLIM;
- if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
- &optval, sizeof(optval)) == -1)
- err(1, "IPV6_MULTICAST_HOPS");
-#ifdef IPV6_USE_MIN_MTU
- if (mflag != 1) {
- optval = mflag > 1 ? 0 : 1;
-
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_USE_MIN_MTU,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_USE_MIN_MTU)");
- }
-#ifdef IPV6_RECVPATHMTU
- else {
- optval = 1;
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVPATHMTU,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_RECVPATHMTU)");
- }
-#endif /* IPV6_RECVPATHMTU */
-#endif /* IPV6_USE_MIN_MTU */
-
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
- if (options & F_POLICY) {
- if (setpolicy(srecv, policy_in) < 0)
- errx(1, "%s", ipsec_strerror());
- if (setpolicy(ssend, policy_out) < 0)
- errx(1, "%s", ipsec_strerror());
- }
-#else
- if (options & F_AUTHHDR) {
- optval = IPSEC_LEVEL_REQUIRE;
-#ifdef IPV6_AUTH_TRANS_LEVEL
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
-#else /* old def */
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_AUTH_LEVEL)");
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_AUTH_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_AUTH_LEVEL)");
-#endif
- }
- if (options & F_ENCRYPT) {
- optval = IPSEC_LEVEL_REQUIRE;
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_ESP_TRANS_LEVEL,
- &optval, sizeof(optval)) == -1)
- err(1, "setsockopt(IPV6_ESP_TRANS_LEVEL)");
- }
-#endif /*IPSEC_POLICY_IPSEC*/
-#endif
-
-#ifdef ICMP6_FILTER
- {
- struct icmp6_filter filt;
- if (!(options & F_VERBOSE)) {
- ICMP6_FILTER_SETBLOCKALL(&filt);
- if ((options & F_FQDN) || (options & F_FQDNOLD) ||
- (options & F_NODEADDR) || (options & F_SUPTYPES))
- ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
- else
- ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
- } else {
- ICMP6_FILTER_SETPASSALL(&filt);
- }
- if (setsockopt(srecv, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
- sizeof(filt)) < 0)
- err(1, "setsockopt(ICMP6_FILTER)");
- }
-#endif /*ICMP6_FILTER*/
-
- /* let the kerel pass extension headers of incoming packets */
- if ((options & F_VERBOSE) != 0) {
- int opton = 1;
-
-#ifdef IPV6_RECVRTHDR
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_RECVRTHDR)");
-#else /* old adv. API */
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RTHDR, &opton,
- sizeof(opton)))
- err(1, "setsockopt(IPV6_RTHDR)");
-#endif
- }
-
-/*
- optval = 1;
- if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
- &optval, sizeof(optval)) == -1)
- err(1, "IPV6_MULTICAST_LOOP");
-*/
-
- /* Specify the outgoing interface and/or the source address */
- if (usepktinfo)
- ip6optlen += CMSG_SPACE(sizeof(struct in6_pktinfo));
-
- if (hoplimit != -1)
- ip6optlen += CMSG_SPACE(sizeof(int));
-
- /* set IP6 packet options */
- if (ip6optlen) {
- if ((scmsg = (char *)malloc(ip6optlen)) == NULL)
- errx(1, "can't allocate enough memory");
- smsghdr.msg_control = (caddr_t)scmsg;
- smsghdr.msg_controllen = ip6optlen;
- scmsgp = CMSG_FIRSTHDR(&smsghdr);
- }
- if (usepktinfo) {
- cmsg_pktinfo = CMSG_DATA(scmsgp);
- scmsgp->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
- scmsgp->cmsg_level = IPPROTO_IPV6;
- scmsgp->cmsg_type = IPV6_PKTINFO;
- scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
- }
-
- /* set the outgoing interface */
- if (ifname) {
-#ifndef USE_SIN6_SCOPE_ID
- /* pktinfo must have already been allocated */
- if ((pktinfo.ipi6_ifindex = if_nametoindex(ifname)) == 0)
- errx(1, "%s: invalid interface name", ifname);
-#else
- if ((dst.sin6_scope_id = if_nametoindex(ifname)) == 0)
- errx(1, "%s: invalid interface name", ifname);
-#endif
- }
- if (hoplimit != -1) {
- scmsgp->cmsg_len = CMSG_LEN(sizeof(int));
- scmsgp->cmsg_level = IPPROTO_IPV6;
- scmsgp->cmsg_type = IPV6_HOPLIMIT;
- memcpy(CMSG_DATA(scmsgp), &hoplimit, sizeof(hoplimit));
-
- scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
- }
-
- if (tclass != -1) {
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_TCLASS,
- &tclass, sizeof(tclass)) == -1)
- err(1, "setsockopt(IPV6_TCLASS)");
- }
-
- if (pcp != -2) {
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_VLAN_PCP,
- &pcp, sizeof(pcp)) == -1)
- err(1, "setsockopt(IPV6_VLAN_PCP)");
- }
-
- if (argc > 1) { /* some intermediate addrs are specified */
- int hops;
- int rthdrlen;
-
- rthdrlen = inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1);
- scmsgp->cmsg_len = CMSG_LEN(rthdrlen);
- scmsgp->cmsg_level = IPPROTO_IPV6;
- scmsgp->cmsg_type = IPV6_RTHDR;
- rthdr = (struct ip6_rthdr *)CMSG_DATA(scmsgp);
- rthdr = inet6_rth_init((void *)rthdr, rthdrlen,
- IPV6_RTHDR_TYPE_0, argc - 1);
- if (rthdr == NULL)
- errx(1, "can't initialize rthdr");
-
- for (hops = 0; hops < argc - 1; hops++) {
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_INET6;
-
- if ((error = cap_getaddrinfo(capdns, argv[hops], NULL, &hints,
- &res)))
- errx(1, "%s", gai_strerror(error));
- if (res->ai_addr->sa_family != AF_INET6)
- errx(1,
- "bad addr family of an intermediate addr");
- sin6 = (struct sockaddr_in6 *)(void *)res->ai_addr;
- if (inet6_rth_add(rthdr, &sin6->sin6_addr))
- errx(1, "can't add an intermediate node");
- freeaddrinfo(res);
- }
-
- scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
- }
-
- /* From now on we will use only reverse DNS lookups. */
-#ifdef WITH_CASPER
- if (capdns != NULL) {
- const char *types[1];
-
- types[0] = "ADDR2NAME";
- if (cap_dns_type_limit(capdns, types, nitems(types)) < 0)
- err(1, "unable to limit access to system.dns service");
- }
-#endif
- if (!(options & F_SRCADDR)) {
- /*
- * get the source address. XXX since we revoked the root
- * privilege, we cannot use a raw socket for this.
- */
- int dummy;
- socklen_t len = sizeof(src);
-
- if ((dummy = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
- err(1, "UDP socket");
-
- src.sin6_family = AF_INET6;
- src.sin6_addr = dst.sin6_addr;
- src.sin6_port = ntohs(DUMMY_PORT);
- src.sin6_scope_id = dst.sin6_scope_id;
-
- if (usepktinfo &&
- setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
- (void *)&pktinfo, sizeof(pktinfo)))
- err(1, "UDP setsockopt(IPV6_PKTINFO)");
-
- if (hoplimit != -1 &&
- setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS,
- (void *)&hoplimit, sizeof(hoplimit)))
- err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)");
-
- if (hoplimit != -1 &&
- setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
- (void *)&hoplimit, sizeof(hoplimit)))
- err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)");
-
- if (rthdr &&
- setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
- (void *)rthdr, (rthdr->ip6r_len + 1) << 3))
- err(1, "UDP setsockopt(IPV6_RTHDR)");
-
- if (connect(dummy, (struct sockaddr *)&src, len) < 0)
- err(1, "UDP connect");
-
- if (getsockname(dummy, (struct sockaddr *)&src, &len) < 0)
- err(1, "getsockname");
-
- close(dummy);
- }
-
- /* Save pktinfo in the ancillary data. */
- if (usepktinfo)
- memcpy(cmsg_pktinfo, &pktinfo, sizeof(pktinfo));
-
- if (connect(ssend, (struct sockaddr *)&dst, sizeof(dst)) != 0)
- err(1, "connect() ssend");
-
- caph_cache_catpages();
- if (caph_enter_casper() < 0)
- err(1, "caph_enter_casper");
-
- cap_rights_init(&rights_stdin);
- if (caph_rights_limit(STDIN_FILENO, &rights_stdin) < 0)
- err(1, "caph_rights_limit stdin");
- if (caph_limit_stdout() < 0)
- err(1, "caph_limit_stdout");
- if (caph_limit_stderr() < 0)
- err(1, "caph_limit_stderr");
-
- cap_rights_init(&rights_srecv, CAP_RECV, CAP_EVENT, CAP_SETSOCKOPT);
- if (caph_rights_limit(srecv, &rights_srecv) < 0)
- err(1, "caph_rights_limit srecv");
- cap_rights_init(&rights_ssend, CAP_SEND, CAP_SETSOCKOPT);
- if (caph_rights_limit(ssend, &rights_ssend) < 0)
- err(1, "caph_rights_limit ssend");
-
-#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
- if (sockbufsize) {
- if (datalen > (size_t)sockbufsize)
- warnx("you need -b to increase socket buffer size");
- if (setsockopt(ssend, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
- sizeof(sockbufsize)) < 0)
- err(1, "setsockopt(SO_SNDBUF)");
- if (setsockopt(srecv, SOL_SOCKET, SO_RCVBUF, &sockbufsize,
- sizeof(sockbufsize)) < 0)
- err(1, "setsockopt(SO_RCVBUF)");
- }
- else {
- if (datalen > 8 * 1024) /*XXX*/
- warnx("you need -b to increase socket buffer size");
- /*
- * When pinging the broadcast address, you can get a lot of
- * answers. Doing something so evil is useful if you are trying
- * to stress the ethernet, or just want to fill the arp cache
- * to get some stuff for /etc/ethers.
- */
- hold = 48 * 1024;
- setsockopt(srecv, SOL_SOCKET, SO_RCVBUF, (char *)&hold,
- sizeof(hold));
- }
-#endif
-
- optval = 1;
-#ifndef USE_SIN6_SCOPE_ID
-#ifdef IPV6_RECVPKTINFO
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
- sizeof(optval)) < 0)
- warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
-#else /* old adv. API */
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_PKTINFO, &optval,
- sizeof(optval)) < 0)
- warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */
-#endif
-#endif /* USE_SIN6_SCOPE_ID */
-#ifdef IPV6_RECVHOPLIMIT
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
- sizeof(optval)) < 0)
- warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
-#else /* old adv. API */
- if (setsockopt(srecv, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
- sizeof(optval)) < 0)
- warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
-#endif
-
- cap_rights_clear(&rights_srecv, CAP_SETSOCKOPT);
- if (caph_rights_limit(srecv, &rights_srecv) < 0)
- err(1, "caph_rights_limit srecv setsockopt");
- cap_rights_clear(&rights_ssend, CAP_SETSOCKOPT);
- if (caph_rights_limit(ssend, &rights_ssend) < 0)
- err(1, "caph_rights_limit ssend setsockopt");
-
- printf("PING6(%lu=40+8+%lu bytes) ", (unsigned long)(40 + pingerlen()),
- (unsigned long)(pingerlen() - 8));
- printf("%s --> ", pr_addr((struct sockaddr *)&src, sizeof(src)));
- printf("%s\n", pr_addr((struct sockaddr *)&dst, sizeof(dst)));
-
- if (preload == 0)
- pinger();
- else {
- if (npackets != 0 && preload > npackets)
- preload = npackets;
- while (preload--)
- pinger();
- }
- clock_gettime(CLOCK_MONOTONIC, &last);
-
- sigemptyset(&si_sa.sa_mask);
- si_sa.sa_flags = 0;
- si_sa.sa_handler = onsignal;
- if (sigaction(SIGINT, &si_sa, 0) == -1)
- err(EX_OSERR, "sigaction SIGINT");
- seenint = 0;
-#ifdef SIGINFO
- if (sigaction(SIGINFO, &si_sa, 0) == -1)
- err(EX_OSERR, "sigaction SIGINFO");
- seeninfo = 0;
-#endif
- if (alarmtimeout > 0) {
- if (sigaction(SIGALRM, &si_sa, 0) == -1)
- err(EX_OSERR, "sigaction SIGALRM");
- }
- if (options & F_FLOOD) {
- intvl.tv_sec = 0;
- intvl.tv_nsec = 10000000;
- }
-
- almost_done = 0;
- while (seenint == 0) {
- struct timespec now, timeout;
- struct msghdr m;
- struct iovec iov[2];
- fd_set rfds;
- int n;
-
- /* signal handling */
- if (seenint)
- onint(SIGINT);
-#ifdef SIGINFO
- if (seeninfo) {
- summary();
- seeninfo = 0;
- continue;
- }
-#endif
- FD_ZERO(&rfds);
- FD_SET(srecv, &rfds);
- clock_gettime(CLOCK_MONOTONIC, &now);
- timespecadd(&last, &intvl, &timeout);
- timespecsub(&timeout, &now, &timeout);
- if (timeout.tv_sec < 0)
- timespecclear(&timeout);
-
- n = pselect(srecv + 1, &rfds, NULL, NULL, &timeout, NULL);
- if (n < 0)
- continue; /* EINTR */
- if (n == 1) {
- m.msg_name = (caddr_t)&from;
- m.msg_namelen = sizeof(from);
- memset(&iov, 0, sizeof(iov));
- iov[0].iov_base = (caddr_t)packet;
- iov[0].iov_len = packlen;
- m.msg_iov = iov;
- m.msg_iovlen = 1;
- memset(cm, 0, CONTROLLEN);
- m.msg_control = (void *)cm;
- m.msg_controllen = CONTROLLEN;
-
- cc = recvmsg(srecv, &m, 0);
- if (cc < 0) {
- if (errno != EINTR) {
- warn("recvmsg");
- sleep(1);
- }
- continue;
- } else if (cc == 0) {
- int mtu;
-
- /*
- * receive control messages only. Process the
- * exceptions (currently the only possibility is
- * a path MTU notification.)
- */
- if ((mtu = get_pathmtu(&m)) > 0) {
- if ((options & F_VERBOSE) != 0) {
- printf("new path MTU (%d) is "
- "notified\n", mtu);
- }
- }
- continue;
- } else {
- /*
- * an ICMPv6 message (probably an echoreply)
- * arrived.
- */
- pr_pack(packet, cc, &m);
- }
- if (((options & F_ONCE) != 0 && nreceived > 0) ||
- (npackets > 0 && nreceived >= npackets))
- break;
- }
- if (n == 0 || (options & F_FLOOD)) {
- if (npackets == 0 || ntransmitted < npackets)
- pinger();
- else {
- if (almost_done)
- break;
- almost_done = 1;
- /*
- * If we're not transmitting any more packets,
- * change the timer to wait two round-trip times
- * if we've received any packets or (waittime)
- * milliseconds if we haven't.
- */
- intvl.tv_nsec = 0;
- if (nreceived) {
- intvl.tv_sec = 2 * tmax / 1000;
- if (intvl.tv_sec == 0)
- intvl.tv_sec = 1;
- } else {
- intvl.tv_sec = waittime / 1000;
- intvl.tv_nsec =
- waittime % 1000 * 1000000;
- }
- }
- clock_gettime(CLOCK_MONOTONIC, &last);
- if (ntransmitted - nreceived - 1 > nmissedmax) {
- nmissedmax = ntransmitted - nreceived - 1;
- if (options & F_MISSED)
- (void)write(STDOUT_FILENO, &BBELL, 1);
- }
- }
- }
- sigemptyset(&si_sa.sa_mask);
- si_sa.sa_flags = 0;
- si_sa.sa_handler = SIG_IGN;
- sigaction(SIGINT, &si_sa, 0);
- sigaction(SIGALRM, &si_sa, 0);
- summary();
-
- if(packet != NULL)
- free(packet);
-
- if (nreceived > 0)
- exit(0);
- else if (ntransmitted > ntransmitfailures)
- exit(2);
- else
- exit(EX_OSERR);
-}
-
-static void
-onsignal(int sig)
-{
-
- switch (sig) {
- case SIGINT:
- case SIGALRM:
- seenint++;
- break;
-#ifdef SIGINFO
- case SIGINFO:
- seeninfo++;
- break;
-#endif
- }
-}
-
-/*
- * pinger --
- * Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
- * will be added on by the kernel. The ID field is our UNIX process ID,
- * and the sequence number is an ascending integer. The first 8 bytes
- * of the data portion are used to hold a UNIX "timespec" struct in VAX
- * byte-order, to compute the round-trip time.
- */
-static size_t
-pingerlen(void)
-{
- size_t l;
-
- if (options & F_FQDN)
- l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
- else if (options & F_FQDNOLD)
- l = ICMP6_NIQLEN;
- else if (options & F_NODEADDR)
- l = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
- else if (options & F_SUPTYPES)
- l = ICMP6_NIQLEN;
- else
- l = ICMP6ECHOLEN + datalen;
-
- return l;
-}
-
-static int
-pinger(void)
-{
- struct icmp6_hdr *icp;
- struct iovec iov[2];
- int i, cc;
- struct icmp6_nodeinfo *nip;
- uint16_t seq;
-
- if (npackets && ntransmitted >= npackets)
- return(-1); /* no more transmission */
-
- icp = (struct icmp6_hdr *)outpack;
- nip = (struct icmp6_nodeinfo *)outpack;
- memset(icp, 0, sizeof(*icp));
- icp->icmp6_cksum = 0;
- seq = ntransmitted++;
- CLR(seq % mx_dup_ck);
-
- if (options & F_FQDN) {
- uint16_t s;
-
- icp->icmp6_type = ICMP6_NI_QUERY;
- icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
- nip->ni_qtype = htons(NI_QTYPE_FQDN);
- nip->ni_flags = htons(0);
-
- memcpy(nip->icmp6_ni_nonce, nonce,
- sizeof(nip->icmp6_ni_nonce));
- s = htons(seq);
- memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
-
- memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
- sizeof(dst.sin6_addr));
- cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
- datalen = 0;
- } else if (options & F_FQDNOLD) {
- uint16_t s;
- /* packet format in 03 draft - no Subject data on queries */
- icp->icmp6_type = ICMP6_NI_QUERY;
- icp->icmp6_code = 0; /* code field is always 0 */
- nip->ni_qtype = htons(NI_QTYPE_FQDN);
- nip->ni_flags = htons(0);
-
- memcpy(nip->icmp6_ni_nonce, nonce,
- sizeof(nip->icmp6_ni_nonce));
- s = htons(seq);
- memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
-
- cc = ICMP6_NIQLEN;
- datalen = 0;
- } else if (options & F_NODEADDR) {
- uint16_t s;
-
- icp->icmp6_type = ICMP6_NI_QUERY;
- icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
- nip->ni_qtype = htons(NI_QTYPE_NODEADDR);
- nip->ni_flags = naflags;
-
- memcpy(nip->icmp6_ni_nonce, nonce,
- sizeof(nip->icmp6_ni_nonce));
- s = htons(seq);
- memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
-
- memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
- sizeof(dst.sin6_addr));
- cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
- datalen = 0;
- } else if (options & F_SUPTYPES) {
- uint16_t s;
-
- icp->icmp6_type = ICMP6_NI_QUERY;
- icp->icmp6_code = ICMP6_NI_SUBJ_FQDN; /*empty*/
- nip->ni_qtype = htons(NI_QTYPE_SUPTYPES);
- /* we support compressed bitmap */
- nip->ni_flags = NI_SUPTYPE_FLAG_COMPRESS;
-
- memcpy(nip->icmp6_ni_nonce, nonce,
- sizeof(nip->icmp6_ni_nonce));
- s = htons(seq);
- memcpy(nip->icmp6_ni_nonce, &s, sizeof(s));
-
- cc = ICMP6_NIQLEN;
- datalen = 0;
- } else {
- icp->icmp6_type = ICMP6_ECHO_REQUEST;
- icp->icmp6_code = 0;
- icp->icmp6_id = htons(ident);
- icp->icmp6_seq = htons(seq);
- if (timing) {
- struct timespec tv;
- struct tv32 tv32;
- (void)clock_gettime(CLOCK_MONOTONIC, &tv);
- /*
- * Truncate seconds down to 32 bits in order
- * to fit the timestamp within 8 bytes of the
- * packet. We're only concerned with
- * durations, not absolute times.
- */
- tv32.tv32_sec = (uint32_t)htonl(tv.tv_sec);
- tv32.tv32_nsec = (uint32_t)htonl(tv.tv_nsec);
- memcpy(&outpack[ICMP6ECHOLEN], &tv32, sizeof(tv32));
- }
- cc = ICMP6ECHOLEN + datalen;
- }
-
-#ifdef DIAGNOSTIC
- if (pingerlen() != cc)
- errx(1, "internal error; length mismatch");
-#endif
-
- memset(&iov, 0, sizeof(iov));
- iov[0].iov_base = (caddr_t)outpack;
- iov[0].iov_len = cc;
- smsghdr.msg_iov = iov;
- smsghdr.msg_iovlen = 1;
-
- i = sendmsg(ssend, &smsghdr, 0);
-
- if (i < 0 || i != cc) {
- if (i < 0) {
- ntransmitfailures++;
- warn("sendmsg");
- }
- (void)printf("ping6: wrote %s %d chars, ret=%d\n",
- hostname, cc, i);
- }
- if (!(options & F_QUIET) && options & F_FLOOD)
- (void)write(STDOUT_FILENO, &DOT, 1);
-
- return(0);
-}
-
-static int
-myechoreply(const struct icmp6_hdr *icp)
-{
- if (ntohs(icp->icmp6_id) == ident)
- return 1;
- else
- return 0;
-}
-
-static int
-mynireply(const struct icmp6_nodeinfo *nip)
-{
- if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
- nonce + sizeof(u_int16_t),
- sizeof(nonce) - sizeof(u_int16_t)) == 0)
- return 1;
- else
- return 0;
-}
-
-/*
- * Decode a name from a DNS message.
- *
- * Format of the message is described in RFC 1035 subsection 4.1.4.
- *
- * Arguments:
- * sp - Pointer to a DNS pointer octet or to the first octet of a label
- * in the message.
- * ep - Pointer to the end of the message (one step past the last octet).
- * base - Pointer to the beginning of the message.
- * buf - Buffer into which the decoded name will be saved.
- * bufsiz - Size of the buffer 'buf'.
- *
- * Return value:
- * Pointer to an octet immediately following the ending zero octet
- * of the decoded label, or NULL if an error occured.
- */
-static const char *
-dnsdecode(const u_char *sp, const u_char *ep, const u_char *base, char *buf,
- size_t bufsiz)
-{
- int i;
- const u_char *cp;
- char cresult[MAXDNAME + 1];
- const u_char *comp;
- int l;
-
- cp = sp;
- *buf = '\0';
-
- if (cp >= ep)
- return NULL;
- while (cp < ep) {
- i = *cp;
- if (i == 0 || cp != sp) {
- if (strlcat((char *)buf, ".", bufsiz) >= bufsiz)
- return NULL; /*result overrun*/
- }
- if (i == 0)
- break;
- cp++;
-
- if ((i & 0xc0) == 0xc0 && cp - base > (i & 0x3f)) {
- /* DNS compression */
- if (!base)
- return NULL;
-
- comp = base + (i & 0x3f);
- if (dnsdecode(comp, cp, base, cresult,
- sizeof(cresult)) == NULL)
- return NULL;
- if (strlcat(buf, cresult, bufsiz) >= bufsiz)
- return NULL; /*result overrun*/
- break;
- } else if ((i & 0x3f) == i) {
- if (i > ep - cp)
- return NULL; /*source overrun*/
- while (i-- > 0 && cp < ep) {
- l = snprintf(cresult, sizeof(cresult),
- isprint(*cp) ? "%c" : "\\%03o", *cp & 0xff);
- if ((size_t)l >= sizeof(cresult) || l < 0)
- return NULL;
- if (strlcat(buf, cresult, bufsiz) >= bufsiz)
- return NULL; /*result overrun*/
- cp++;
- }
- } else
- return NULL; /*invalid label*/
- }
- if (i != 0)
- return NULL; /*not terminated*/
- cp++;
- return cp;
-}
-
-/*
- * pr_pack --
- * Print out the packet, if it came from us. This logic is necessary
- * because ALL readers of the ICMP socket get a copy of ALL ICMP packets
- * which arrive ('tis only fair). This permits multiple copies of this
- * program to be run without having intermingled output (or statistics!).
- */
-static void
-pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
-{
-#define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
- struct icmp6_hdr *icp;
- struct icmp6_nodeinfo *ni;
- int i;
- int hoplim;
- struct sockaddr *from;
- int fromlen;
- const u_char *cp = NULL;
- u_char *dp, *end = buf + cc;
- struct in6_pktinfo *pktinfo = NULL;
- struct timespec tv, tp;
- struct tv32 tpp;
- double triptime = 0;
- int dupflag;
- size_t off;
- int oldfqdn;
- u_int16_t seq;
- char dnsname[MAXDNAME + 1];
-
- (void)clock_gettime(CLOCK_MONOTONIC, &tv);
-
- if (!mhdr || !mhdr->msg_name ||
- mhdr->msg_namelen != sizeof(struct sockaddr_in6) ||
- ((struct sockaddr *)mhdr->msg_name)->sa_family != AF_INET6) {
- if (options & F_VERBOSE)
- warnx("invalid peername");
- return;
- }
- from = (struct sockaddr *)mhdr->msg_name;
- fromlen = mhdr->msg_namelen;
- if (cc < (int)sizeof(struct icmp6_hdr)) {
- if (options & F_VERBOSE)
- warnx("packet too short (%d bytes) from %s", cc,
- pr_addr(from, fromlen));
- return;
- }
- if (((mhdr->msg_flags & MSG_CTRUNC) != 0) &&
- (options & F_VERBOSE) != 0)
- warnx("some control data discarded, insufficient buffer size");
- icp = (struct icmp6_hdr *)buf;
- ni = (struct icmp6_nodeinfo *)buf;
- off = 0;
-
- if ((hoplim = get_hoplim(mhdr)) == -1) {
- warnx("failed to get receiving hop limit");
- return;
- }
- if ((pktinfo = get_rcvpktinfo(mhdr)) == NULL) {
- warnx("failed to get receiving packet information");
- return;
- }
-
- if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
- seq = ntohs(icp->icmp6_seq);
- ++nreceived;
- if (timing) {
- memcpy(&tpp, icp + 1, sizeof(tpp));
- tp.tv_sec = ntohl(tpp.tv32_sec);
- tp.tv_nsec = ntohl(tpp.tv32_nsec);
- timespecsub(&tv, &tp, &tv);
- triptime = ((double)tv.tv_sec) * 1000.0 +
- ((double)tv.tv_nsec) / 1000000.0;
- tsum += triptime;
- tsumsq += triptime * triptime;
- if (triptime < tmin)
- tmin = triptime;
- if (triptime > tmax)
- tmax = triptime;
- }
-
- if (TST(seq % mx_dup_ck)) {
- ++nrepeats;
- --nreceived;
- dupflag = 1;
- } else {
- SET(seq % mx_dup_ck);
- dupflag = 0;
- }
-
- if (options & F_QUIET)
- return;
-
- if (options & F_WAITTIME && triptime > waittime) {
- ++nrcvtimeout;
- return;
- }
-
- if (options & F_FLOOD)
- (void)write(STDOUT_FILENO, &BSPACE, 1);
- else {
- if (options & F_AUDIBLE)
- (void)write(STDOUT_FILENO, &BBELL, 1);
- (void)printf("%d bytes from %s, icmp_seq=%u", cc,
- pr_addr(from, fromlen), seq);
- (void)printf(" hlim=%d", hoplim);
- if ((options & F_VERBOSE) != 0) {
- struct sockaddr_in6 dstsa;
-
- memset(&dstsa, 0, sizeof(dstsa));
- dstsa.sin6_family = AF_INET6;
- dstsa.sin6_len = sizeof(dstsa);
- dstsa.sin6_scope_id = pktinfo->ipi6_ifindex;
- dstsa.sin6_addr = pktinfo->ipi6_addr;
- (void)printf(" dst=%s",
- pr_addr((struct sockaddr *)&dstsa,
- sizeof(dstsa)));
- }
- if (timing)
- (void)printf(" time=%.3f ms", triptime);
- if (dupflag)
- (void)printf("(DUP!)");
- /* check the data */
- cp = buf + off + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
- dp = outpack + ICMP6ECHOLEN + ICMP6ECHOTMLEN;
- for (i = 8; cp < end; ++i, ++cp, ++dp) {
- if (*cp != *dp) {
- (void)printf("\nwrong data byte #%d should be 0x%x but was 0x%x", i, *dp, *cp);
- break;
- }
- }
- }
- } else if (icp->icmp6_type == ICMP6_NI_REPLY && mynireply(ni)) {
- memcpy(&seq, ni->icmp6_ni_nonce, sizeof(seq));
- seq = ntohs(seq);
- ++nreceived;
- if (TST(seq % mx_dup_ck)) {
- ++nrepeats;
- --nreceived;
- dupflag = 1;
- } else {
- SET(seq % mx_dup_ck);
- dupflag = 0;
- }
-
- if (options & F_QUIET)
- return;
-
- (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
-
- switch (ntohs(ni->ni_code)) {
- case ICMP6_NI_SUCCESS:
- break;
- case ICMP6_NI_REFUSED:
- printf("refused, type 0x%x", ntohs(ni->ni_type));
- goto fqdnend;
- case ICMP6_NI_UNKNOWN:
- printf("unknown, type 0x%x", ntohs(ni->ni_type));
- goto fqdnend;
- default:
- printf("unknown code 0x%x, type 0x%x",
- ntohs(ni->ni_code), ntohs(ni->ni_type));
- goto fqdnend;
- }
-
- switch (ntohs(ni->ni_qtype)) {
- case NI_QTYPE_NOOP:
- printf("NodeInfo NOOP");
- break;
- case NI_QTYPE_SUPTYPES:
- pr_suptypes(ni, end - (u_char *)ni);
- break;
- case NI_QTYPE_NODEADDR:
- pr_nodeaddr(ni, end - (u_char *)ni);
- break;
- case NI_QTYPE_FQDN:
- default: /* XXX: for backward compatibility */
- cp = (u_char *)ni + ICMP6_NIRLEN;
- if (buf[off + ICMP6_NIRLEN] ==
- cc - off - ICMP6_NIRLEN - 1)
- oldfqdn = 1;
- else
- oldfqdn = 0;
- if (oldfqdn) {
- cp++; /* skip length */
- while (cp < end) {
- safeputc(*cp & 0xff);
- cp++;
- }
- } else {
- i = 0;
- while (cp < end) {
- cp = dnsdecode((const u_char *)cp, end,
- (const u_char *)(ni + 1), dnsname,
- sizeof(dnsname));
- if (cp == NULL) {
- printf("???");
- break;
- }
- /*
- * name-lookup special handling for
- * truncated name
- */
- if (cp + 1 <= end && !*cp &&
- strlen(dnsname) > 0) {
- dnsname[strlen(dnsname) - 1] = '\0';
- cp++;
- }
- printf("%s%s", i > 0 ? "," : "",
- dnsname);
- }
- }
- if (options & F_VERBOSE) {
- u_long t;
- int32_t ttl;
- int comma = 0;
-
- (void)printf(" ("); /*)*/
-
- switch (ni->ni_code) {
- case ICMP6_NI_REFUSED:
- (void)printf("refused");
- comma++;
- break;
- case ICMP6_NI_UNKNOWN:
- (void)printf("unknown qtype");
- comma++;
- break;
- }
-
- if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
- /* case of refusion, unknown */
- /*(*/
- putchar(')');
- goto fqdnend;
- }
- memcpy(&t, &buf[off+ICMP6ECHOLEN+8], sizeof(t));
- ttl = (int32_t)ntohl(t);
- if (comma)
- printf(",");
- if (!(ni->ni_flags & NI_FQDN_FLAG_VALIDTTL)) {
- (void)printf("TTL=%d:meaningless",
- (int)ttl);
- } else {
- if (ttl < 0) {
- (void)printf("TTL=%d:invalid",
- ttl);
- } else
- (void)printf("TTL=%d", ttl);
- }
- comma++;
-
- if (oldfqdn) {
- if (comma)
- printf(",");
- printf("03 draft");
- comma++;
- } else {
- cp = (u_char *)ni + ICMP6_NIRLEN;
- if (cp == end) {
- if (comma)
- printf(",");
- printf("no name");
- comma++;
- }
- }
-
- if (buf[off + ICMP6_NIRLEN] !=
- cc - off - ICMP6_NIRLEN - 1 && oldfqdn) {
- if (comma)
- printf(",");
- (void)printf("invalid namelen:%d/%lu",
- buf[off + ICMP6_NIRLEN],
- (u_long)cc - off - ICMP6_NIRLEN - 1);
- comma++;
- }
- /*(*/
- putchar(')');
- }
- fqdnend:
- ;
- }
- } else {
- /* We've got something other than an ECHOREPLY */
- if (!(options & F_VERBOSE))
- return;
- (void)printf("%d bytes from %s: ", cc, pr_addr(from, fromlen));
- pr_icmph(icp, end);
- }
-
- if (!(options & F_FLOOD)) {
- (void)putchar('\n');
- if (options & F_VERBOSE)
- pr_exthdrs(mhdr);
- (void)fflush(stdout);
- }
-#undef safeputc
-}
-
-static void
-pr_exthdrs(struct msghdr *mhdr)
-{
- ssize_t bufsize;
- void *bufp;
- struct cmsghdr *cm;
-
- bufsize = 0;
- bufp = mhdr->msg_control;
- for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
- cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
- if (cm->cmsg_level != IPPROTO_IPV6)
- continue;
-
- bufsize = CONTROLLEN - ((caddr_t)CMSG_DATA(cm) - (caddr_t)bufp);
- if (bufsize <= 0)
- continue;
- switch (cm->cmsg_type) {
- case IPV6_HOPOPTS:
- printf(" HbH Options: ");
- pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
- break;
- case IPV6_DSTOPTS:
-#ifdef IPV6_RTHDRDSTOPTS
- case IPV6_RTHDRDSTOPTS:
-#endif
- printf(" Dst Options: ");
- pr_ip6opt(CMSG_DATA(cm), (size_t)bufsize);
- break;
- case IPV6_RTHDR:
- printf(" Routing: ");
- pr_rthdr(CMSG_DATA(cm), (size_t)bufsize);
- break;
- }
- }
-}
-
-static void
-pr_ip6opt(void *extbuf, size_t bufsize)
-{
- struct ip6_hbh *ext;
- int currentlen;
- u_int8_t type;
- socklen_t extlen, len;
- void *databuf;
- size_t offset;
- u_int16_t value2;
- u_int32_t value4;
-
- ext = (struct ip6_hbh *)extbuf;
- extlen = (ext->ip6h_len + 1) * 8;
- printf("nxt %u, len %u (%lu bytes)\n", ext->ip6h_nxt,
- (unsigned int)ext->ip6h_len, (unsigned long)extlen);
-
- /*
- * Bounds checking on the ancillary data buffer:
- * subtract the size of a cmsg structure from the buffer size.
- */
- if (bufsize < (extlen + CMSG_SPACE(0))) {
- extlen = bufsize - CMSG_SPACE(0);
- warnx("options truncated, showing only %u (total=%u)",
- (unsigned int)(extlen / 8 - 1),
- (unsigned int)(ext->ip6h_len));
- }
-
- currentlen = 0;
- while (1) {
- currentlen = inet6_opt_next(extbuf, extlen, currentlen,
- &type, &len, &databuf);
- if (currentlen == -1)
- break;
- switch (type) {
- /*
- * Note that inet6_opt_next automatically skips any padding
- * optins.
- */
- case IP6OPT_JUMBO:
- offset = 0;
- offset = inet6_opt_get_val(databuf, offset,
- &value4, sizeof(value4));
- printf(" Jumbo Payload Opt: Length %u\n",
- (u_int32_t)ntohl(value4));
- break;
- case IP6OPT_ROUTER_ALERT:
- offset = 0;
- offset = inet6_opt_get_val(databuf, offset,
- &value2, sizeof(value2));
- printf(" Router Alert Opt: Type %u\n",
- ntohs(value2));
- break;
- default:
- printf(" Received Opt %u len %lu\n",
- type, (unsigned long)len);
- break;
- }
- }
- return;
-}
-
-static void
-pr_rthdr(void *extbuf, size_t bufsize)
-{
- struct in6_addr *in6;
- char ntopbuf[INET6_ADDRSTRLEN];
- struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf;
- int i, segments, origsegs, rthsize, size0, size1;
-
- /* print fixed part of the header */
- printf("nxt %u, len %u (%d bytes), type %u, ", rh->ip6r_nxt,
- rh->ip6r_len, (rh->ip6r_len + 1) << 3, rh->ip6r_type);
- if ((segments = inet6_rth_segments(extbuf)) >= 0) {
- printf("%d segments, ", segments);
- printf("%d left\n", rh->ip6r_segleft);
- } else {
- printf("segments unknown, ");
- printf("%d left\n", rh->ip6r_segleft);
- return;
- }
-
- /*
- * Bounds checking on the ancillary data buffer. When calculating
- * the number of items to show keep in mind:
- * - The size of the cmsg structure
- * - The size of one segment (the size of a Type 0 routing header)
- * - When dividing add a fudge factor of one in case the
- * dividend is not evenly divisible by the divisor
- */
- rthsize = (rh->ip6r_len + 1) * 8;
- if (bufsize < (rthsize + CMSG_SPACE(0))) {
- origsegs = segments;
- size0 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 0);
- size1 = inet6_rth_space(IPV6_RTHDR_TYPE_0, 1);
- segments -= (rthsize - (bufsize - CMSG_SPACE(0))) /
- (size1 - size0) + 1;
- warnx("segments truncated, showing only %d (total=%d)",
- segments, origsegs);
- }
-
- for (i = 0; i < segments; i++) {
- in6 = inet6_rth_getaddr(extbuf, i);
- if (in6 == NULL)
- printf(" [%d]<NULL>\n", i);
- else {
- if (!inet_ntop(AF_INET6, in6, ntopbuf,
- sizeof(ntopbuf)))
- strlcpy(ntopbuf, "?", sizeof(ntopbuf));
- printf(" [%d]%s\n", i, ntopbuf);
- }
- }
-
- return;
-
-}
-
-static int
-pr_bitrange(u_int32_t v, int soff, int ii)
-{
- int off;
- int i;
-
- off = 0;
- while (off < 32) {
- /* shift till we have 0x01 */
- if ((v & 0x01) == 0) {
- if (ii > 1)
- printf("-%u", soff + off - 1);
- ii = 0;
- switch (v & 0x0f) {
- case 0x00:
- v >>= 4;
- off += 4;
- continue;
- case 0x08:
- v >>= 3;
- off += 3;
- continue;
- case 0x04: case 0x0c:
- v >>= 2;
- off += 2;
- continue;
- default:
- v >>= 1;
- off += 1;
- continue;
- }
- }
-
- /* we have 0x01 with us */
- for (i = 0; i < 32 - off; i++) {
- if ((v & (0x01 << i)) == 0)
- break;
- }
- if (!ii)
- printf(" %u", soff + off);
- ii += i;
- v >>= i; off += i;
- }
- return ii;
-}
-
-static void
-pr_suptypes(struct icmp6_nodeinfo *ni, size_t nilen)
- /* ni->qtype must be SUPTYPES */
-{
- size_t clen;
- u_int32_t v;
- const u_char *cp, *end;
- u_int16_t cur;
- struct cbit {
- u_int16_t words; /*32bit count*/
- u_int16_t skip;
- } cbit;
-#define MAXQTYPES (1 << 16)
- size_t off;
- int b;
-
- cp = (u_char *)(ni + 1);
- end = ((u_char *)ni) + nilen;
- cur = 0;
- b = 0;
-
- printf("NodeInfo Supported Qtypes");
- if (options & F_VERBOSE) {
- if (ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS)
- printf(", compressed bitmap");
- else
- printf(", raw bitmap");
- }
-
- while (cp < end) {
- clen = (size_t)(end - cp);
- if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) == 0) {
- if (clen == 0 || clen > MAXQTYPES / 8 ||
- clen % sizeof(v)) {
- printf("???");
- return;
- }
- } else {
- if (clen < sizeof(cbit) || clen % sizeof(v))
- return;
- memcpy(&cbit, cp, sizeof(cbit));
- if (sizeof(cbit) + ntohs(cbit.words) * sizeof(v) >
- clen)
- return;
- cp += sizeof(cbit);
- clen = ntohs(cbit.words) * sizeof(v);
- if (cur + clen * 8 + (u_long)ntohs(cbit.skip) * 32 >
- MAXQTYPES)
- return;
- }
-
- for (off = 0; off < clen; off += sizeof(v)) {
- memcpy(&v, cp + off, sizeof(v));
- v = (u_int32_t)ntohl(v);
- b = pr_bitrange(v, (int)(cur + off * 8), b);
- }
- /* flush the remaining bits */
- b = pr_bitrange(0, (int)(cur + off * 8), b);
-
- cp += clen;
- cur += clen * 8;
- if ((ni->ni_flags & NI_SUPTYPE_FLAG_COMPRESS) != 0)
- cur += ntohs(cbit.skip) * 32;
- }
-}
-
-static void
-pr_nodeaddr(struct icmp6_nodeinfo *ni, int nilen)
- /* ni->qtype must be NODEADDR */
-{
- u_char *cp = (u_char *)(ni + 1);
- char ntop_buf[INET6_ADDRSTRLEN];
- int withttl = 0;
-
- nilen -= sizeof(struct icmp6_nodeinfo);
-
- if (options & F_VERBOSE) {
- switch (ni->ni_code) {
- case ICMP6_NI_REFUSED:
- (void)printf("refused");
- break;
- case ICMP6_NI_UNKNOWN:
- (void)printf("unknown qtype");
- break;
- }
- if (ni->ni_flags & NI_NODEADDR_FLAG_TRUNCATE)
- (void)printf(" truncated");
- }
- putchar('\n');
- if (nilen <= 0)
- printf(" no address\n");
-
- /*
- * In icmp-name-lookups 05 and later, TTL of each returned address
- * is contained in the resposne. We try to detect the version
- * by the length of the data, but note that the detection algorithm
- * is incomplete. We assume the latest draft by default.
- */
- if (nilen % (sizeof(u_int32_t) + sizeof(struct in6_addr)) == 0)
- withttl = 1;
- while (nilen > 0) {
- u_int32_t ttl = 0;
-
- if (withttl) {
- uint32_t t;
-
- memcpy(&t, cp, sizeof(t));
- ttl = (u_int32_t)ntohl(t);
- cp += sizeof(u_int32_t);
- nilen -= sizeof(u_int32_t);
- }
-
- if (inet_ntop(AF_INET6, cp, ntop_buf, sizeof(ntop_buf)) ==
- NULL)
- strlcpy(ntop_buf, "?", sizeof(ntop_buf));
- printf(" %s", ntop_buf);
- if (withttl) {
- if (ttl == 0xffffffff) {
- /*
- * XXX: can this convention be applied to all
- * type of TTL (i.e. non-ND TTL)?
- */
- printf("(TTL=infty)");
- }
- else
- printf("(TTL=%u)", ttl);
- }
- putchar('\n');
-
- nilen -= sizeof(struct in6_addr);
- cp += sizeof(struct in6_addr);
- }
-}
-
-static int
-get_hoplim(struct msghdr *mhdr)
-{
- struct cmsghdr *cm;
-
- for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
- cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
- if (cm->cmsg_len == 0)
- return(-1);
-
- if (cm->cmsg_level == IPPROTO_IPV6 &&
- cm->cmsg_type == IPV6_HOPLIMIT &&
- cm->cmsg_len == CMSG_LEN(sizeof(int))) {
- int r;
-
- memcpy(&r, CMSG_DATA(cm), sizeof(r));
- return(r);
- }
- }
-
- return(-1);
-}
-
-static struct in6_pktinfo *
-get_rcvpktinfo(struct msghdr *mhdr)
-{
- static struct in6_pktinfo pi;
- struct cmsghdr *cm;
-
- for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
- cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
- if (cm->cmsg_len == 0)
- return(NULL);
-
- if (cm->cmsg_level == IPPROTO_IPV6 &&
- cm->cmsg_type == IPV6_PKTINFO &&
- cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo))) {
- memcpy(&pi, CMSG_DATA(cm), sizeof(pi));
- return(&pi);
- }
- }
-
- return(NULL);
-}
-
-static int
-get_pathmtu(struct msghdr *mhdr)
-{
-#ifdef IPV6_RECVPATHMTU
- struct cmsghdr *cm;
- struct ip6_mtuinfo mtuctl;
-
- for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm;
- cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) {
- if (cm->cmsg_len == 0)
- return(0);
-
- if (cm->cmsg_level == IPPROTO_IPV6 &&
- cm->cmsg_type == IPV6_PATHMTU &&
- cm->cmsg_len == CMSG_LEN(sizeof(struct ip6_mtuinfo))) {
- memcpy(&mtuctl, CMSG_DATA(cm), sizeof(mtuctl));
-
- /*
- * If the notified destination is different from
- * the one we are pinging, just ignore the info.
- * We check the scope ID only when both notified value
- * and our own value have non-0 values, because we may
- * have used the default scope zone ID for sending,
- * in which case the scope ID value is 0.
- */
- if (!IN6_ARE_ADDR_EQUAL(&mtuctl.ip6m_addr.sin6_addr,
- &dst.sin6_addr) ||
- (mtuctl.ip6m_addr.sin6_scope_id &&
- dst.sin6_scope_id &&
- mtuctl.ip6m_addr.sin6_scope_id !=
- dst.sin6_scope_id)) {
- if ((options & F_VERBOSE) != 0) {
- printf("path MTU for %s is notified. "
- "(ignored)\n",
- pr_addr((struct sockaddr *)&mtuctl.ip6m_addr,
- sizeof(mtuctl.ip6m_addr)));
- }
- return(0);
- }
-
- /*
- * Ignore an invalid MTU. XXX: can we just believe
- * the kernel check?
- */
- if (mtuctl.ip6m_mtu < IPV6_MMTU)
- return(0);
-
- /* notification for our destination. return the MTU. */
- return((int)mtuctl.ip6m_mtu);
- }
- }
-#endif
- return(0);
-}
-
-/*
- * onint --
- * SIGINT handler.
- */
-/* ARGSUSED */
-static void
-onint(int notused __unused)
-{
- /*
- * When doing reverse DNS lookups, the seenint flag might not
- * be noticed for a while. Just exit if we get a second SIGINT.
- */
- if ((options & F_HOSTNAME) && seenint != 0)
- _exit(nreceived ? 0 : 2);
-}
-
-/*
- * summary --
- * Print out statistics.
- */
-static void
-summary(void)
-{
-
- (void)printf("\n--- %s ping6 statistics ---\n", hostname);
- (void)printf("%ld packets transmitted, ", ntransmitted);
- (void)printf("%ld packets received, ", nreceived);
- if (nrepeats)
- (void)printf("+%ld duplicates, ", nrepeats);
- if (ntransmitted) {
- if (nreceived > ntransmitted)
- (void)printf("-- somebody's duplicating packets!");
- else
- (void)printf("%.1f%% packet loss",
- ((((double)ntransmitted - nreceived) * 100.0) /
- ntransmitted));
- }
- if (nrcvtimeout)
- printf(", %ld packets out of wait time", nrcvtimeout);
- (void)putchar('\n');
- if (nreceived && timing) {
- /* Only display average to microseconds */
- double num = nreceived + nrepeats;
- double avg = tsum / num;
- double dev = sqrt(tsumsq / num - avg * avg);
- (void)printf(
- "round-trip min/avg/max/std-dev = %.3f/%.3f/%.3f/%.3f ms\n",
- tmin, avg, tmax, dev);
- (void)fflush(stdout);
- }
- (void)fflush(stdout);
-}
-
-/*subject type*/
-static const char *niqcode[] = {
- "IPv6 address",
- "DNS label", /*or empty*/
- "IPv4 address",
-};
-
-/*result code*/
-static const char *nircode[] = {
- "Success", "Refused", "Unknown",
-};
-
-
-/*
- * pr_icmph --
- * Print a descriptive string about an ICMP header.
- */
-static void
-pr_icmph(struct icmp6_hdr *icp, u_char *end)
-{
- char ntop_buf[INET6_ADDRSTRLEN];
- struct nd_redirect *red;
- struct icmp6_nodeinfo *ni;
- char dnsname[MAXDNAME + 1];
- const u_char *cp;
- size_t l;
-
- switch (icp->icmp6_type) {
- case ICMP6_DST_UNREACH:
- switch (icp->icmp6_code) {
- case ICMP6_DST_UNREACH_NOROUTE:
- (void)printf("No Route to Destination\n");
- break;
- case ICMP6_DST_UNREACH_ADMIN:
- (void)printf("Destination Administratively "
- "Unreachable\n");
- break;
- case ICMP6_DST_UNREACH_BEYONDSCOPE:
- (void)printf("Destination Unreachable Beyond Scope\n");
- break;
- case ICMP6_DST_UNREACH_ADDR:
- (void)printf("Destination Host Unreachable\n");
- break;
- case ICMP6_DST_UNREACH_NOPORT:
- (void)printf("Destination Port Unreachable\n");
- break;
- default:
- (void)printf("Destination Unreachable, Bad Code: %d\n",
- icp->icmp6_code);
- break;
- }
- /* Print returned IP header information */
- pr_retip((struct ip6_hdr *)(icp + 1), end);
- break;
- case ICMP6_PACKET_TOO_BIG:
- (void)printf("Packet too big mtu = %d\n",
- (int)ntohl(icp->icmp6_mtu));
- pr_retip((struct ip6_hdr *)(icp + 1), end);
- break;
- case ICMP6_TIME_EXCEEDED:
- switch (icp->icmp6_code) {
- case ICMP6_TIME_EXCEED_TRANSIT:
- (void)printf("Time to live exceeded\n");
- break;
- case ICMP6_TIME_EXCEED_REASSEMBLY:
- (void)printf("Frag reassembly time exceeded\n");
- break;
- default:
- (void)printf("Time exceeded, Bad Code: %d\n",
- icp->icmp6_code);
- break;
- }
- pr_retip((struct ip6_hdr *)(icp + 1), end);
- break;
- case ICMP6_PARAM_PROB:
- (void)printf("Parameter problem: ");
- switch (icp->icmp6_code) {
- case ICMP6_PARAMPROB_HEADER:
- (void)printf("Erroneous Header ");
- break;
- case ICMP6_PARAMPROB_NEXTHEADER:
- (void)printf("Unknown Nextheader ");
- break;
- case ICMP6_PARAMPROB_OPTION:
- (void)printf("Unrecognized Option ");
- break;
- default:
- (void)printf("Bad code(%d) ", icp->icmp6_code);
- break;
- }
- (void)printf("pointer = 0x%02x\n",
- (u_int32_t)ntohl(icp->icmp6_pptr));
- pr_retip((struct ip6_hdr *)(icp + 1), end);
- break;
- case ICMP6_ECHO_REQUEST:
- (void)printf("Echo Request");
- /* XXX ID + Seq + Data */
- break;
- case ICMP6_ECHO_REPLY:
- (void)printf("Echo Reply");
- /* XXX ID + Seq + Data */
- break;
- case ICMP6_MEMBERSHIP_QUERY:
- (void)printf("Listener Query");
- break;
- case ICMP6_MEMBERSHIP_REPORT:
- (void)printf("Listener Report");
- break;
- case ICMP6_MEMBERSHIP_REDUCTION:
- (void)printf("Listener Done");
- break;
- case ND_ROUTER_SOLICIT:
- (void)printf("Router Solicitation");
- break;
- case ND_ROUTER_ADVERT:
- (void)printf("Router Advertisement");
- break;
- case ND_NEIGHBOR_SOLICIT:
- (void)printf("Neighbor Solicitation");
- break;
- case ND_NEIGHBOR_ADVERT:
- (void)printf("Neighbor Advertisement");
- break;
- case ND_REDIRECT:
- red = (struct nd_redirect *)icp;
- (void)printf("Redirect\n");
- if (!inet_ntop(AF_INET6, &red->nd_rd_dst, ntop_buf,
- sizeof(ntop_buf)))
- strlcpy(ntop_buf, "?", sizeof(ntop_buf));
- (void)printf("Destination: %s", ntop_buf);
- if (!inet_ntop(AF_INET6, &red->nd_rd_target, ntop_buf,
- sizeof(ntop_buf)))
- strlcpy(ntop_buf, "?", sizeof(ntop_buf));
- (void)printf(" New Target: %s", ntop_buf);
- break;
- case ICMP6_NI_QUERY:
- (void)printf("Node Information Query");
- /* XXX ID + Seq + Data */
- ni = (struct icmp6_nodeinfo *)icp;
- l = end - (u_char *)(ni + 1);
- printf(", ");
- switch (ntohs(ni->ni_qtype)) {
- case NI_QTYPE_NOOP:
- (void)printf("NOOP");
- break;
- case NI_QTYPE_SUPTYPES:
- (void)printf("Supported qtypes");
- break;
- case NI_QTYPE_FQDN:
- (void)printf("DNS name");
- break;
- case NI_QTYPE_NODEADDR:
- (void)printf("nodeaddr");
- break;
- case NI_QTYPE_IPV4ADDR:
- (void)printf("IPv4 nodeaddr");
- break;
- default:
- (void)printf("unknown qtype");
- break;
- }
- if (options & F_VERBOSE) {
- switch (ni->ni_code) {
- case ICMP6_NI_SUBJ_IPV6:
- if (l == sizeof(struct in6_addr) &&
- inet_ntop(AF_INET6, ni + 1, ntop_buf,
- sizeof(ntop_buf)) != NULL) {
- (void)printf(", subject=%s(%s)",
- niqcode[ni->ni_code], ntop_buf);
- } else {
-#if 1
- /* backward compat to -W */
- (void)printf(", oldfqdn");
-#else
- (void)printf(", invalid");
-#endif
- }
- break;
- case ICMP6_NI_SUBJ_FQDN:
- if (end == (u_char *)(ni + 1)) {
- (void)printf(", no subject");
- break;
- }
- printf(", subject=%s", niqcode[ni->ni_code]);
- cp = (const u_char *)(ni + 1);
- cp = dnsdecode(cp, end, NULL, dnsname,
- sizeof(dnsname));
- if (cp != NULL)
- printf("(%s)", dnsname);
- else
- printf("(invalid)");
- break;
- case ICMP6_NI_SUBJ_IPV4:
- if (l == sizeof(struct in_addr) &&
- inet_ntop(AF_INET, ni + 1, ntop_buf,
- sizeof(ntop_buf)) != NULL) {
- (void)printf(", subject=%s(%s)",
- niqcode[ni->ni_code], ntop_buf);
- } else
- (void)printf(", invalid");
- break;
- default:
- (void)printf(", invalid");
- break;
- }
- }
- break;
- case ICMP6_NI_REPLY:
- (void)printf("Node Information Reply");
- /* XXX ID + Seq + Data */
- ni = (struct icmp6_nodeinfo *)icp;
- printf(", ");
- switch (ntohs(ni->ni_qtype)) {
- case NI_QTYPE_NOOP:
- (void)printf("NOOP");
- break;
- case NI_QTYPE_SUPTYPES:
- (void)printf("Supported qtypes");
- break;
- case NI_QTYPE_FQDN:
- (void)printf("DNS name");
- break;
- case NI_QTYPE_NODEADDR:
- (void)printf("nodeaddr");
- break;
- case NI_QTYPE_IPV4ADDR:
- (void)printf("IPv4 nodeaddr");
- break;
- default:
- (void)printf("unknown qtype");
- break;
- }
- if (options & F_VERBOSE) {
- if (ni->ni_code > nitems(nircode))
- printf(", invalid");
- else
- printf(", %s", nircode[ni->ni_code]);
- }
- break;
- default:
- (void)printf("Bad ICMP type: %d", icp->icmp6_type);
- }
-}
-
-/*
- * pr_iph --
- * Print an IP6 header.
- */
-static void
-pr_iph(struct ip6_hdr *ip6)
-{
- u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
- u_int8_t tc;
- char ntop_buf[INET6_ADDRSTRLEN];
-
- tc = *(&ip6->ip6_vfc + 1); /* XXX */
- tc = (tc >> 4) & 0x0f;
- tc |= (ip6->ip6_vfc << 4);
-
- printf("Vr TC Flow Plen Nxt Hlim\n");
- printf(" %1x %02x %05x %04x %02x %02x\n",
- (ip6->ip6_vfc & IPV6_VERSION_MASK) >> 4, tc, (u_int32_t)ntohl(flow),
- ntohs(ip6->ip6_plen), ip6->ip6_nxt, ip6->ip6_hlim);
- if (!inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf, sizeof(ntop_buf)))
- strlcpy(ntop_buf, "?", sizeof(ntop_buf));
- printf("%s->", ntop_buf);
- if (!inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf, sizeof(ntop_buf)))
- strlcpy(ntop_buf, "?", sizeof(ntop_buf));
- printf("%s\n", ntop_buf);
-}
-
-/*
- * pr_addr --
- * Return an ascii host address as a dotted quad and optionally with
- * a hostname.
- */
-static const char *
-pr_addr(struct sockaddr *addr, int addrlen)
-{
- static char buf[NI_MAXHOST];
- int flag = 0;
-
- if ((options & F_HOSTNAME) == 0)
- flag |= NI_NUMERICHOST;
-
- if (cap_getnameinfo(capdns, addr, addrlen, buf, sizeof(buf), NULL, 0,
- flag) == 0)
- return (buf);
- else
- return "?";
-}
-
-/*
- * pr_retip --
- * Dump some info on a returned (via ICMPv6) IPv6 packet.
- */
-static void
-pr_retip(struct ip6_hdr *ip6, u_char *end)
-{
- u_char *cp = (u_char *)ip6, nh;
- int hlen;
-
- if ((size_t)(end - (u_char *)ip6) < sizeof(*ip6)) {
- printf("IP6");
- goto trunc;
- }
- pr_iph(ip6);
- hlen = sizeof(*ip6);
-
- nh = ip6->ip6_nxt;
- cp += hlen;
- while (end - cp >= 8) {
- struct ah ah;
-
- switch (nh) {
- case IPPROTO_HOPOPTS:
- printf("HBH ");
- hlen = (((struct ip6_hbh *)cp)->ip6h_len+1) << 3;
- nh = ((struct ip6_hbh *)cp)->ip6h_nxt;
- break;
- case IPPROTO_DSTOPTS:
- printf("DSTOPT ");
- hlen = (((struct ip6_dest *)cp)->ip6d_len+1) << 3;
- nh = ((struct ip6_dest *)cp)->ip6d_nxt;
- break;
- case IPPROTO_FRAGMENT:
- printf("FRAG ");
- hlen = sizeof(struct ip6_frag);
- nh = ((struct ip6_frag *)cp)->ip6f_nxt;
- break;
- case IPPROTO_ROUTING:
- printf("RTHDR ");
- hlen = (((struct ip6_rthdr *)cp)->ip6r_len+1) << 3;
- nh = ((struct ip6_rthdr *)cp)->ip6r_nxt;
- break;
-#ifdef IPSEC
- case IPPROTO_AH:
- printf("AH ");
- memcpy(&ah, cp, sizeof(ah));
- hlen = (ah.ah_len+2) << 2;
- nh = ah.ah_nxt;
- break;
-#endif
- case IPPROTO_ICMPV6:
- printf("ICMP6: type = %d, code = %d\n",
- *cp, *(cp + 1));
- return;
- case IPPROTO_ESP:
- printf("ESP\n");
- return;
- case IPPROTO_TCP:
- printf("TCP: from port %u, to port %u (decimal)\n",
- (*cp * 256 + *(cp + 1)),
- (*(cp + 2) * 256 + *(cp + 3)));
- return;
- case IPPROTO_UDP:
- printf("UDP: from port %u, to port %u (decimal)\n",
- (*cp * 256 + *(cp + 1)),
- (*(cp + 2) * 256 + *(cp + 3)));
- return;
- default:
- printf("Unknown Header(%d)\n", nh);
- return;
- }
-
- if ((cp += hlen) >= end)
- goto trunc;
- }
- if (end - cp < 8)
- goto trunc;
-
- putchar('\n');
- return;
-
- trunc:
- printf("...\n");
- return;
-}
-
-static void
-fill(char *bp, char *patp)
-{
- int ii, jj, kk;
- int pat[16];
- char *cp;
-
- for (cp = patp; *cp; cp++)
- if (!isxdigit(*cp))
- errx(1, "patterns must be specified as hex digits");
- ii = sscanf(patp,
- "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",
- &pat[0], &pat[1], &pat[2], &pat[3], &pat[4], &pat[5], &pat[6],
- &pat[7], &pat[8], &pat[9], &pat[10], &pat[11], &pat[12],
- &pat[13], &pat[14], &pat[15]);
-
-/* xxx */
- if (ii > 0)
- for (kk = 0;
- (size_t)kk <= MAXDATALEN - 8 + sizeof(struct tv32) + ii;
- kk += ii)
- for (jj = 0; jj < ii; ++jj)
- bp[jj + kk] = pat[jj];
- if (!(options & F_QUIET)) {
- (void)printf("PATTERN: 0x");
- for (jj = 0; jj < ii; ++jj)
- (void)printf("%02x", bp[jj] & 0xFF);
- (void)printf("\n");
- }
-}
-
-#ifdef IPSEC
-#ifdef IPSEC_POLICY_IPSEC
-static int
-setpolicy(int so __unused, char *policy)
-{
- char *buf;
-
- if (policy == NULL)
- return 0; /* ignore */
-
- buf = ipsec_set_policy(policy, strlen(policy));
- if (buf == NULL)
- errx(1, "%s", ipsec_strerror());
- if (setsockopt(ssend, IPPROTO_IPV6, IPV6_IPSEC_POLICY, buf,
- ipsec_get_policylen(buf)) < 0)
- warnx("Unable to set IPsec policy");
- free(buf);
-
- return 0;
-}
-#endif
-#endif
-
-static char *
-nigroup(char *name, int nig_oldmcprefix)
-{
- char *p;
- char *q;
- MD5_CTX ctxt;
- u_int8_t digest[16];
- u_int8_t c;
- size_t l;
- char hbuf[NI_MAXHOST];
- struct in6_addr in6;
- int valid;
-
- p = strchr(name, '.');
- if (!p)
- p = name + strlen(name);
- l = p - name;
- if (l > 63 || l > sizeof(hbuf) - 1)
- return NULL; /*label too long*/
- strncpy(hbuf, name, l);
- hbuf[(int)l] = '\0';
-
- for (q = name; *q; q++) {
- if (isupper(*(unsigned char *)q))
- *q = tolower(*(unsigned char *)q);
- }
-
- /* generate 16 bytes of pseudo-random value. */
- memset(&ctxt, 0, sizeof(ctxt));
- MD5Init(&ctxt);
- c = l & 0xff;
- MD5Update(&ctxt, &c, sizeof(c));
- MD5Update(&ctxt, (unsigned char *)name, l);
- MD5Final(digest, &ctxt);
-
- if (nig_oldmcprefix) {
- /* draft-ietf-ipngwg-icmp-name-lookup */
- valid = inet_pton(AF_INET6, "ff02::2:0000:0000", &in6);
- } else {
- /* RFC 4620 */
- valid = inet_pton(AF_INET6, "ff02::2:ff00:0000", &in6);
- }
- if (valid != 1)
- return NULL; /*XXX*/
-
- if (nig_oldmcprefix) {
- /* draft-ietf-ipngwg-icmp-name-lookup */
- bcopy(digest, &in6.s6_addr[12], 4);
- } else {
- /* RFC 4620 */
- bcopy(digest, &in6.s6_addr[13], 3);
- }
-
- if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
- return NULL;
-
- 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)
-{
- cap_channel_t *capcas, *capdnsloc;
-#ifdef WITH_CASPER
- const char *types[2];
- int families[1];
-#endif
- capcas = cap_init();
- if (capcas == NULL)
- err(1, "unable to create casper process");
- capdnsloc = cap_service_open(capcas, "system.dns");
- /* Casper capability no longer needed. */
- cap_close(capcas);
- if (capdnsloc == NULL)
- err(1, "unable to open system.dns service");
-#ifdef WITH_CASPER
- types[0] = "NAME2ADDR";
- types[1] = "ADDR2NAME";
- if (cap_dns_type_limit(capdnsloc, types, nitems(types)) < 0)
- err(1, "unable to limit access to system.dns service");
- families[0] = AF_INET6;
- if (cap_dns_family_limit(capdnsloc, families, nitems(families)) < 0)
- err(1, "unable to limit access to system.dns service");
-#endif
- return (capdnsloc);
-}
Index: head/sbin/ping6/tests/Makefile
===================================================================
--- head/sbin/ping6/tests/Makefile
+++ head/sbin/ping6/tests/Makefile
@@ -1,8 +0,0 @@
-# $FreeBSD$
-
-PACKAGE= tests
-
-ATF_TESTS_SH+= ping6_test
-${PACKAGE}FILES+= ping6_c1_s8_t1.out
-
-.include <bsd.test.mk>
Index: head/sbin/ping6/tests/ping6_c1_s8_t1.out
===================================================================
--- head/sbin/ping6/tests/ping6_c1_s8_t1.out
+++ head/sbin/ping6/tests/ping6_c1_s8_t1.out
@@ -1,6 +0,0 @@
-PING6(56=40+8+8 bytes) ::1 --> ::1
-16 bytes from ::1, icmp_seq=0 hlim= time= ms
-
---- localhost ping6 statistics ---
-1 packets transmitted, 1 packets received, 0.0% packet loss
-round-trip min/avg/max/std-dev = /// ms
Index: head/sbin/ping6/tests/ping6_test.sh
===================================================================
--- head/sbin/ping6/tests/ping6_test.sh
+++ head/sbin/ping6/tests/ping6_test.sh
@@ -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"
-}
Index: head/tools/build/mk/OptionalObsoleteFiles.inc
===================================================================
--- head/tools/build/mk/OptionalObsoleteFiles.inc
+++ head/tools/build/mk/OptionalObsoleteFiles.inc
@@ -2583,7 +2583,6 @@
.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/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 @@
.endif
.if ${MK_INET6_SUPPORT} == no
-OLD_FILES+=rescue/ping6
OLD_FILES+=rescue/rtsol
.endif

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