diff options
author | Alan Somers <asomers@FreeBSD.org> | 2020-11-26 04:29:30 +0000 |
---|---|---|
committer | Alan Somers <asomers@FreeBSD.org> | 2020-11-26 04:29:30 +0000 |
commit | 3cde9171d2d50852ab782e90acf734f416246e86 (patch) | |
tree | 0d4e70ec68ec4ba273dfc9081f85959963620917 /sbin/ping6 | |
parent | b05f17a12fc58914e0a5b17f90331627b600432d (diff) | |
download | src-3cde9171d2d50852ab782e90acf734f416246e86.tar.gz src-3cde9171d2d50852ab782e90acf734f416246e86.zip |
Merge ping6 to ping
There is now a single ping binary, which chooses to use ICMP or ICMPv4
based on the -4 and -6 options, and the format of the address.
Submitted by: Ján Sučan <sucanjan@gmail.com>
Sponsored by: Google LLC (Google Summer of Code 2019)
MFC after: Never
Differential Revision: https://reviews.freebsd.org/D21377
Notes
Notes:
svn path=/head/; revision=368045
Diffstat (limited to 'sbin/ping6')
-rw-r--r-- | sbin/ping6/Makefile | 27 | ||||
-rw-r--r-- | sbin/ping6/Makefile.depend | 22 | ||||
-rw-r--r-- | sbin/ping6/ping6.8 | 567 | ||||
-rw-r--r-- | sbin/ping6/ping6.c | 2902 | ||||
-rw-r--r-- | sbin/ping6/tests/Makefile | 8 | ||||
-rw-r--r-- | sbin/ping6/tests/ping6_c1_s8_t1.out | 6 | ||||
-rw-r--r-- | sbin/ping6/tests/ping6_test.sh | 53 |
7 files changed, 0 insertions, 3585 deletions
diff --git a/sbin/ping6/Makefile b/sbin/ping6/Makefile deleted file mode 100644 index b658f32f06e9..000000000000 --- a/sbin/ping6/Makefile +++ /dev/null @@ -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> diff --git a/sbin/ping6/Makefile.depend b/sbin/ping6/Makefile.depend deleted file mode 100644 index 725e99740168..000000000000 --- a/sbin/ping6/Makefile.depend +++ /dev/null @@ -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 diff --git a/sbin/ping6/ping6.8 b/sbin/ping6/ping6.8 deleted file mode 100644 index 0e355e581370..000000000000 --- a/sbin/ping6/ping6.8 +++ /dev/null @@ -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. diff --git a/sbin/ping6/ping6.c b/sbin/ping6/ping6.c deleted file mode 100644 index dba9f81ca87d..000000000000 --- a/sbin/ping6/ping6.c +++ /dev/null @@ -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); -} diff --git a/sbin/ping6/tests/Makefile b/sbin/ping6/tests/Makefile deleted file mode 100644 index f773d23c294a..000000000000 --- a/sbin/ping6/tests/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# $FreeBSD$ - -PACKAGE= tests - -ATF_TESTS_SH+= ping6_test -${PACKAGE}FILES+= ping6_c1_s8_t1.out - -.include <bsd.test.mk> diff --git a/sbin/ping6/tests/ping6_c1_s8_t1.out b/sbin/ping6/tests/ping6_c1_s8_t1.out deleted file mode 100644 index 81c56e6cf586..000000000000 --- a/sbin/ping6/tests/ping6_c1_s8_t1.out +++ /dev/null @@ -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 diff --git a/sbin/ping6/tests/ping6_test.sh b/sbin/ping6/tests/ping6_test.sh deleted file mode 100644 index d7721d620614..000000000000 --- a/sbin/ping6/tests/ping6_test.sh +++ /dev/null @@ -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" -} |