From 903ca1e525d31068eb447066c1f496b51cdcba31 Mon Sep 17 00:00:00 2001 From: David van Moolenbroek Date: Wed, 15 Feb 2017 17:16:18 +0000 Subject: [PATCH] Import NetBSD ping6(8) Change-Id: Ife49f5fac0e50852c74a0f85b6129c204d172c68 --- distrib/sets/lists/minix-base/mi | 1 + distrib/sets/lists/minix-debug/mi | 1 + distrib/sets/lists/minix-man/mi | 1 + sbin/Makefile | 2 + sbin/ping6/Makefile | 32 + sbin/ping6/ping6.8 | 449 +++++ sbin/ping6/ping6.c | 2666 +++++++++++++++++++++++++++++ sbin/ping6/ping6_hostops.c | 55 + sbin/ping6/ping6_rumpops.c | 60 + sbin/ping6/prog_ops.h | 86 + 10 files changed, 3353 insertions(+) create mode 100644 sbin/ping6/Makefile create mode 100644 sbin/ping6/ping6.8 create mode 100644 sbin/ping6/ping6.c create mode 100644 sbin/ping6/ping6_hostops.c create mode 100644 sbin/ping6/ping6_rumpops.c create mode 100644 sbin/ping6/prog_ops.h diff --git a/distrib/sets/lists/minix-base/mi b/distrib/sets/lists/minix-base/mi index f2aad5e02..059f8baa0 100644 --- a/distrib/sets/lists/minix-base/mi +++ b/distrib/sets/lists/minix-base/mi @@ -221,6 +221,7 @@ ./sbin/newfs_v7fs minix-base ./sbin/nologin minix-base ./sbin/ping minix-base +./sbin/ping6 minix-base use_inet6 ./sbin/poweroff minix-base ./sbin/printconfig minix-base ./sbin/rcorder minix-base diff --git a/distrib/sets/lists/minix-debug/mi b/distrib/sets/lists/minix-debug/mi index 46f0f148b..6585fa9d1 100644 --- a/distrib/sets/lists/minix-debug/mi +++ b/distrib/sets/lists/minix-debug/mi @@ -172,6 +172,7 @@ ./usr/libdata/debug/sbin/newfs_udf.debug minix-debug debug ./usr/libdata/debug/sbin/newfs_v7fs.debug minix-debug debug ./usr/libdata/debug/sbin/ping.debug minix-debug debug +./usr/libdata/debug/sbin/ping6.debug minix-debug use_inet6,debug ./usr/libdata/debug/sbin/printconfig.debug minix-debug debug ./usr/libdata/debug/sbin/rcorder.debug minix-debug debug ./usr/libdata/debug/sbin/reboot.debug minix-debug debug diff --git a/distrib/sets/lists/minix-man/mi b/distrib/sets/lists/minix-man/mi index 569479e0e..58071997e 100644 --- a/distrib/sets/lists/minix-man/mi +++ b/distrib/sets/lists/minix-man/mi @@ -3438,6 +3438,7 @@ ./usr/man/man8/part.8 minix-man ./usr/man/man8/partition.8 minix-man ./usr/man/man8/ping.8 minix-man +./usr/man/man8/ping6.8 minix-man use_inet6 ./usr/man/man8/postinstall.8 minix-man ./usr/man/man8/poweroff.8 minix-man ./usr/man/man8/pr_routes.8 minix-man obsolete diff --git a/sbin/Makefile b/sbin/Makefile index 0e9409926..81022b520 100644 --- a/sbin/Makefile +++ b/sbin/Makefile @@ -54,11 +54,13 @@ SUBDIR+= mount_v7fs .if (${MKCRYPTO} != "no") SUBDIR+= cgdconfig .endif +.endif # !defined(__MINIX) .if (${USE_INET6} != "no") SUBDIR+= ping6 .endif +.if !defined(__MINIX) .if (${MKISCSI} != "no") SUBDIR+= iscsictl iscsid .endif diff --git a/sbin/ping6/Makefile b/sbin/ping6/Makefile new file mode 100644 index 000000000..6d3e93c0a --- /dev/null +++ b/sbin/ping6/Makefile @@ -0,0 +1,32 @@ +# $NetBSD: Makefile,v 1.16 2015/09/09 10:06:05 ozaki-r Exp $ + +.include + +USE_FORT?= yes # setuid +RUMPPRG= ping6 +MAN= ping6.8 + +BINOWN= root +BINMODE= 4555 + +CPPFLAGS+= -DINET6 +.if !defined(__MINIX) +CPPFLAGS+= -DIPSEC +.endif # !defined(__MINIX) + +.if !defined(__MINIX) +LDADD+= -lipsec -lm +DPADD+= ${LIBIPSEC} ${LIBM} +.else +LDADD+= -lm +DPADD+= ${LIBM} +.endif # defined(__MINIX) + +.PATH: ${.CURDIR}/../../lib/libc/net +RUMPSRCS= getaddrinfo.c getifaddrs.c getnameinfo.c +RUMPSRCS+= if_indextoname.c if_nametoindex.c +.if (${MKRUMP} != "no") +CPPFLAGS+= -DRUMP_ACTION +.endif + +.include diff --git a/sbin/ping6/ping6.8 b/sbin/ping6/ping6.8 new file mode 100644 index 000000000..544b0e0e0 --- /dev/null +++ b/sbin/ping6/ping6.8 @@ -0,0 +1,449 @@ +.\" $NetBSD: ping6.8,v 1.30 2015/05/15 08:02:39 kefren Exp $ +.\" $KAME: ping6.8,v 1.57 2002/05/26 13:18:25 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. +.\" +.Dd April 23, 2015 +.Dt PING6 8 +.Os +.Sh NAME +.Nm ping6 +.Nd send +.Tn ICMPv6 ECHO_REQUEST +packets to network hosts +.Sh SYNOPSIS +.Nm ping6 +.\" without IPsec, or new IPsec +.Op Fl dfHmnNoqRtvwW +.\" old IPsec +.\" .Op Fl AdEfnNqRtvwW +.Op Fl a Ar addrtype +.Op Fl b Ar bufsiz +.Op Fl c Ar count +.Op Fl g Ar gateway +.Op Fl h Ar hoplimit +.Op Fl I Ar interface +.Op Fl i Ar wait +.Op Fl l Ar preload +.Op Fl p Ar pattern +.\" new IPsec +.Op Fl P Ar policy +.Op Fl S Ar sourceaddr +.Op Fl s Ar packetsize +.Op Fl x Ar maxwait +.Op Fl X Ar deadline +.Op Ar hops ... +.Ar host +.Sh DESCRIPTION +.Nm +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 RFC 2463. +The options are as follows: +.Bl -tag -width Ds +.\" old IPsec +.\" .It Fl A +.\" Enables transport-mode IPsec authentication header +.\" .Pq experimental . +.It Fl a 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 count +Stop after sending +.Pq and receiving +.Ar count +.Tn ECHO_RESPONSE +packets. +.It Fl d +Set the +.Dv SO_DEBUG +option on the socket being used. +.\" .It Fl E +.\" Enables transport-mode IPsec encapsulated security payload +.\" .Pq 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 g 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 +command does not try reverse-lookup unless the option is specified. +.It Fl h 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 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 m +By default, +.Nm +asks the kernel to fragment packets to fit into the minimum IPv6 MTU. +.Fl m +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 specified 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 +.Pq Li ff02::2:xxxx:xxxx . +.Ar host +must be string hostname of the target +.Pq 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. +.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 R +Make the kernel believe that the target +.Ar host +.Po +or the first +.Ar hop +if you specify +.Ar hops +.Pc +is reachable, by injecting upper-layer reachability confirmation hint. +The option is meaningful only if the target +.Ar host +.Pq or the first hop +is a neighbor. +.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 t +Generate ICMPv6 Node Information supported query types query, +rather than echo-request. +.Fl s +has no effect if +.Fl t +is specified. +.It Fl v +Verbose output. +.Tn ICMP +packets other than +.Tn ECHO_RESPONSE +that are received are listed. +.It Fl w +Generate ICMPv6 Node Information DNS Name query, rather than echo-request. +.Fl s +has no effect if +.Fl w +is specified. +.It Fl W +Same as +.Fl w , +but with old packet format based on 03 draft. +This option is present for backward compatibility. +.Fl s +has no effect if +.Fl w +is specified. +.It Fl x Ar maxwait +Time in milliseconds to wait for a reply for each packet sent. +.It Fl X Ar deadline +Specify a timeout, in seconds, before ping exits regardless of +how many packets have been received. +.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 +.Pq 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, maximum, mean, and standard deviation of +the round-trip times. +.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 +.\" .Pq 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 +.\" .Pq 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 +.Nm +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 +.Pq 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 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 +.Pq 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 Ns . +.Sh EXIT STATUS +.Nm +exits with 0 on success (the host is alive), +and non-zero if the arguments are incorrect or the host is not responding. +.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 -w ff02::1%wi0 +.Ed +.Pp +The following will probe addresses assigned to the destination node, +.Li dst.foo.com . +.Bd -literal -offset indent +ping6 -a 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 RFC 2463 +.%D December 1998 +.Re +.Rs +.%A Matt Crawford +.%T "IPv6 Node Information Queries" +.%N draft-ietf-ipngwg-icmp-name-lookups-09.txt +.%D May 2002 +.%O work in progress material +.Re +.Sh HISTORY +The +.Xr ping 8 +command appeared in +.Bx 4.3 . +The +.Nm +command with IPv6 support first appeared in the WIDE Hydrangea IPv6 +protocol stack kit. +.Sh BUGS +.\" except for bsdi +.Nm +is intentionally separate from +.Xr ping 8 . diff --git a/sbin/ping6/ping6.c b/sbin/ping6/ping6.c new file mode 100644 index 000000000..279250bb1 --- /dev/null +++ b/sbin/ping6/ping6.c @@ -0,0 +1,2666 @@ +/* $NetBSD: ping6.c,v 1.88 2015/08/06 14:45:54 ozaki-r Exp $ */ +/* $KAME: ping6.c,v 1.164 2002/11/16 14:05:37 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. + */ + +/* 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 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 */ +#else +#include +#ifndef lint +__RCSID("$NetBSD: ping6.c,v 1.88 2015/08/06 14:45:54 ozaki-r Exp $"); +#endif +#endif + +/* + * 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 +#include +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef IPSEC +#include +#include +#endif + +#include + +#include "prog_ops.h" + +struct tv32 { + u_int32_t tv32_sec; + u_int32_t tv32_usec; +}; + +#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) +/* 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 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 +#ifdef IPV6_REACHCONF +#define F_REACHCONF 0x8000 +#endif +#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_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES) +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 addrinfo *res; +static struct sockaddr_in6 dst; /* who to ping6 */ +static struct sockaddr_in6 src; /* src addr of this packet */ +static socklen_t srclen; +static int datalen = DEFDATALEN; +static int s; /* socket file descriptor */ +static u_char outpack[MAXPACKETLEN]; +static char BSPACE = '\b'; /* characters written for flood */ +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 */ + +/* counters */ +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 struct timeval interval = {1, 0}; /* interval between packets */ + +/* 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. */ +static double maxwait = 0.0; /* maxwait for reply in ms */ +static double deadline = 0.0; /* max running time in seconds */ + +/* 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 seenalrm; +static volatile sig_atomic_t seenint; +#ifdef SIGINFO +static volatile sig_atomic_t seeninfo; +#endif + +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 retransmit(void); +__dead static void onsigexit(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 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 *); +static void pr_rthdr(void *); +static int pr_bitrange(u_int32_t, int, int); +static void pr_retip(struct ip6_hdr *, u_char *); +static void summary(void); +static void tvsub(struct timeval *, struct timeval *); +#if !defined(__minix) /* this is really a netbsd bug */ +static int setpolicy(int, char *); +#endif /* !defined(__minix) */ +static char *nigroup(char *); +static double timespec_to_sec(const struct timespec *tp); +__dead static void usage(void); + +int +main(int argc, char *argv[]) +{ + struct itimerval itimer; + struct sockaddr_in6 from; + int timeout; + struct addrinfo hints; + struct pollfd fdmaskp[1]; + int cc; + u_int i, packlen; + int ch, hold, preload, optval, ret_ga; + u_char *datap, *packet; + char *e, *target, *ifname = NULL, *gateway = NULL; + int ip6optlen = 0; + struct cmsghdr *scmsgp = NULL; +#if defined(SO_SNDBUF) && defined(SO_RCVBUF) + u_long lsockbufsize; + int sockbufsize = 0; +#endif + int usepktinfo = 0; + struct in6_pktinfo *pktinfo = NULL; + struct ip6_rthdr *rthdr = NULL; +#ifdef IPSEC_POLICY_IPSEC + char *policy_in = NULL; + char *policy_out = NULL; +#endif + double intval; + size_t rthlen; +#ifdef IPV6_USE_MIN_MTU + int mflag = 0; +#endif + struct timespec now; + double exitat = 0.0; + + /* just to be sure */ + memset(&smsghdr, 0, sizeof(smsghdr)); + memset(&smsgiov, 0, sizeof(smsgiov)); + + preload = 0; + datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN]; +#ifndef IPSEC +#define ADDOPTS +#else +#ifdef IPSEC_POLICY_IPSEC +#define ADDOPTS "P:" +#else +#define ADDOPTS "AE" +#endif /*IPSEC_POLICY_IPSEC*/ +#endif + + if (prog_init && prog_init() == -1) + err(EXIT_FAILURE, "init failed"); + + while ((ch = getopt(argc, argv, + "a:b:c:dfHg:h:I:i:l:mnNop:qRS:s:tvwWx:X:" ADDOPTS)) != -1) { +#undef ADDOPTS + switch (ch) { + case 'a': + { + 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 = lsockbufsize; + if (errno || !*optarg || *e || + (u_long)sockbufsize != lsockbufsize) + errx(1, "invalid socket buffer size"); +#else + errx(1, +"-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported"); +#endif + 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_SO_DEBUG; + break; + case 'f': + if (prog_getuid()) { + errno = EPERM; + errx(1, "Must be superuser to flood ping"); + } + options |= F_FLOOD; + setbuf(stdout, NULL); + break; + case 'g': + gateway = optarg; + break; + case 'H': + options |= F_HOSTNAME; + break; + case 'h': /* 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 */ + intval = strtod(optarg, &e); + if (*optarg == '\0' || *e != '\0') + errx(1, "illegal timing interval %s", optarg); + if (intval < 1 && prog_getuid()) { + errx(1, "%s: only root may use interval < 1s", + strerror(EPERM)); + } + interval.tv_sec = (long)intval; + interval.tv_usec = + (long)((intval - interval.tv_sec) * 1000000); + if (interval.tv_sec < 0) + errx(1, "illegal timing interval %s", optarg); + /* less than 1/hz does not make sense */ + if (interval.tv_sec == 0 && interval.tv_usec < 10000) { + warnx("too small interval, raised to 0.01"); + interval.tv_usec = 10000; + } + options |= F_INTERVAL; + break; + case 'l': + if (prog_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 'm': +#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; + 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 'R': +#ifdef IPV6_REACHCONF + options |= F_REACHCONF; + break; +#else + errx(1, "-R is not supported in this configuration"); +#endif + 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; + + ret_ga = getaddrinfo(optarg, NULL, &hints, &res); + if (ret_ga) { + errx(1, "invalid source address: %s", + gai_strerror(ret_ga)); + } + /* + * 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 't': + options &= ~F_NOUSERDATA; + options |= F_SUPTYPES; + break; + case 'v': + options |= F_VERBOSE; + break; + case 'w': + options &= ~F_NOUSERDATA; + options |= F_FQDN; + break; + case 'W': + options &= ~F_NOUSERDATA; + options |= F_FQDNOLD; + break; + case 'x': + maxwait = strtod(optarg, &e); + if (*e != '\0' || maxwait <= 0) + errx(EXIT_FAILURE, "Bad/invalid maxwait time: " + "%s", optarg); + break; + case 'X': + deadline = strtod(optarg, &e); + if (*e != '\0' || deadline <= 0) + errx(EXIT_FAILURE, "Bad/invalid deadline time: " + "%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 'A': + 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) { + rthlen = CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0, + argc - 1)); + if (rthlen == 0) { + errx(1, "too many intermediate hops"); + /*NOTREACHED*/ + } + ip6optlen += rthlen; + } + + if (options & F_NIGROUP) { + target = nigroup(argv[argc - 1]); + if (target == NULL) { + usage(); + /*NOTREACHED*/ + } + } else + target = argv[argc - 1]; + + /* 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; + + ret_ga = getaddrinfo(target, NULL, &hints, &res); + if (ret_ga) + errx(1, "%s", gai_strerror(ret_ga)); + if (res->ai_canonname) + hostname = res->ai_canonname; + else + hostname = target; + + if (!res->ai_addr) + errx(1, "getaddrinfo failed"); + + (void)memcpy(&dst, res->ai_addr, res->ai_addrlen); + + if ((s = prog_socket(res->ai_family, res->ai_socktype, + res->ai_protocol)) < 0) + err(1, "socket"); + + /* set the source address if specified. */ + if ((options & F_SRCADDR) && + bind(s, (struct sockaddr *)&src, srclen) != 0) { + err(1, "bind"); + } + + /* set the gateway (next hop) if specified */ + if (gateway) { + struct addrinfo ghints, *gres; + int error; + + memset(&ghints, 0, sizeof(ghints)); + ghints.ai_family = AF_INET6; + ghints.ai_socktype = SOCK_RAW; + ghints.ai_protocol = IPPROTO_ICMPV6; + + error = getaddrinfo(gateway, NULL, &hints, &gres); + if (error) { + errx(1, "getaddrinfo for the gateway %s: %s", + gateway, gai_strerror(error)); + } + if (gres->ai_next && (options & F_VERBOSE)) + warnx("gateway resolves to multiple addresses"); + + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_NEXTHOP, + gres->ai_addr, gres->ai_addrlen)) { + err(1, "setsockopt(IPV6_NEXTHOP)"); + } + + freeaddrinfo(gres); + } + + /* + * 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 (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_RECVHOPOPTS)"); +#else /* old adv. API */ + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_HOPOPTS, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_HOPOPTS)"); +#endif +#ifdef IPV6_RECVDSTOPTS + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_RECVDSTOPTS)"); +#else /* old adv. API */ + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_DSTOPTS, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_DSTOPTS)"); +#endif +#ifdef IPV6_RECVRTHDRDSTOPTS + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)"); +#endif + } + + /* revoke root privilege */ + prog_seteuid(prog_getuid()); + prog_setuid(prog_getuid()); + + if ((options & F_FLOOD) && (options & F_INTERVAL)) + errx(1, "-f and -i incompatible options"); + + if ((options & F_NOUSERDATA) == 0) { + if (datalen >= (int)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(packlen))) + err(1, "Unable to allocate packet"); + if (!(options & F_PINGFILLED)) + for (i = ICMP6ECHOLEN; i < packlen; ++i) + *datap++ = i; + + ident = arc4random() & 0xFFFF; + memset(nonce, 0, sizeof(nonce)); + for (i = 0; i < sizeof(nonce); i += sizeof(u_int32_t)) { + uint32_t r = arc4random(); + memcpy(&nonce[i], &r, sizeof(r)); + } + + hold = 1; + + if (options & F_SO_DEBUG) + (void)prog_setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold, + sizeof(hold)); + optval = IPV6_DEFHLIM; + if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr)) + if (prog_setsockopt(s, 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 (prog_setsockopt(s, IPPROTO_IPV6, IPV6_USE_MIN_MTU, + &optval, sizeof(optval)) == -1) + err(1, "setsockopt(IPV6_USE_MIN_MTU)"); + } +#ifdef IPV6_RECVPATHMTU + else { + optval = 1; + if (prog_setsockopt(s, 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(s, policy_in) < 0) + errx(1, "%s", ipsec_strerror()); + if (setpolicy(s, policy_out) < 0) + errx(1, "%s", ipsec_strerror()); + } +#else + if (options & F_AUTHHDR) { + optval = IPSEC_LEVEL_REQUIRE; +#ifdef IPV6_AUTH_TRANS_LEVEL + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL, + &optval, sizeof(optval)) == -1) + err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)"); +#else /* old def */ + if (prog_setsockopt(s, 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 (prog_setsockopt(s, 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 (prog_setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, &filt, + sizeof(filt)) < 0) + err(1, "setsockopt(ICMP6_FILTER)"); + } +#endif /*ICMP6_FILTER*/ + + /* let the kernel pass extension headers of incoming packets */ + if ((options & F_VERBOSE) != 0) { + int opton = 1; + +#ifdef IPV6_RECVRTHDR + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_RECVRTHDR)"); +#else /* old adv. API */ + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton, + sizeof(opton))) + err(1, "setsockopt(IPV6_RTHDR)"); +#endif + } + +/* + optval = 1; + if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr)) + if (prog_setsockopt(s, 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)); + +#ifdef IPV6_REACHCONF + if (options & F_REACHCONF) + ip6optlen += CMSG_SPACE(0); +#endif + + /* set IP6 packet options */ + if (ip6optlen) { + if ((scmsg = (char *)malloc(ip6optlen)) == 0) + errx(1, "can't allocate enough memory"); + smsghdr.msg_control = (caddr_t)scmsg; + smsghdr.msg_controllen = ip6optlen; + scmsgp = (struct cmsghdr *)scmsg; + } + if (usepktinfo) { + pktinfo = (struct in6_pktinfo *)(CMSG_DATA(scmsgp)); + memset(pktinfo, 0, sizeof(*pktinfo)); + 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; + *(int *)(CMSG_DATA(scmsgp)) = hoplimit; + + scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp); + } +#ifdef IPV6_REACHCONF + if (options & F_REACHCONF) { + scmsgp->cmsg_len = CMSG_LEN(0); + scmsgp->cmsg_level = IPPROTO_IPV6; + scmsgp->cmsg_type = IPV6_REACHCONF; + + scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp); + } +#endif + + if (argc > 1) { /* some intermediate addrs are specified */ + int hops, error; + 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++) { + struct addrinfo *iaip; + + if ((error = getaddrinfo(argv[hops], NULL, &hints, + &iaip))) + errx(1, "%s", gai_strerror(error)); + if (SIN6(iaip->ai_addr)->sin6_family != AF_INET6) + errx(1, + "bad addr family of an intermediate addr"); + + if (inet6_rth_add(rthdr, + &(SIN6(iaip->ai_addr))->sin6_addr)) + errx(1, "can't add an intermediate node"); + freeaddrinfo(iaip); + } + + scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp); + } + + 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 = prog_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 (pktinfo && + prog_setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO, + (void *)pktinfo, sizeof(*pktinfo))) + err(1, "UDP setsockopt(IPV6_PKTINFO)"); + + if (hoplimit != -1 && + prog_setsockopt(dummy, IPPROTO_IPV6, IPV6_UNICAST_HOPS, + (void *)&hoplimit, sizeof(hoplimit))) + err(1, "UDP setsockopt(IPV6_UNICAST_HOPS)"); + + if (hoplimit != -1 && + prog_setsockopt(dummy, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, + (void *)&hoplimit, sizeof(hoplimit))) + err(1, "UDP setsockopt(IPV6_MULTICAST_HOPS)"); + + if (rthdr && + prog_setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR, + (void *)rthdr, (rthdr->ip6r_len + 1) << 3)) + err(1, "UDP setsockopt(IPV6_RTHDR)"); + + if (prog_connect(dummy, (struct sockaddr *)&src, len) < 0) + err(1, "UDP connect"); + + if (prog_getsockname(dummy, (struct sockaddr *)&src, &len) < 0) + err(1, "getsockname"); + + prog_close(dummy); + } + +#if defined(SO_SNDBUF) && defined(SO_RCVBUF) + if (sockbufsize) { + if (datalen > sockbufsize) + warnx("you need -b to increase socket buffer size"); + if (prog_setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize, + sizeof(sockbufsize)) < 0) + err(1, "setsockopt(SO_SNDBUF)"); + if (prog_setsockopt(s, 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; + prog_setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold, + sizeof(hold)); + } +#endif + + optval = 1; +#ifndef USE_SIN6_SCOPE_ID +#ifdef IPV6_RECVPKTINFO + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval, + sizeof(optval)) < 0) + warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */ +#else /* old adv. API */ + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &optval, + sizeof(optval)) < 0) + warn("setsockopt(IPV6_PKTINFO)"); /* XXX err? */ +#endif +#endif /* USE_SIN6_SCOPE_ID */ +#ifdef IPV6_RECVHOPLIMIT + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval, + sizeof(optval)) < 0) + warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */ +#else /* old adv. API */ + if (prog_setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval, + sizeof(optval)) < 0) + warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */ +#endif + + 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))); + + while (preload--) /* Fire off them quickies. */ + (void)pinger(); + + (void)signal(SIGINT, onsignal); +#ifdef SIGINFO + (void)signal(SIGINFO, onsignal); +#endif + + if ((options & F_FLOOD) == 0) { + (void)signal(SIGALRM, onsignal); + itimer.it_interval = interval; + itimer.it_value = interval; + (void)setitimer(ITIMER_REAL, &itimer, NULL); + if (ntransmitted == 0) + retransmit(); + } + + if (deadline > 0) { + clock_gettime(CLOCK_MONOTONIC, &now); + exitat = timespec_to_sec(&now) + deadline; + } + + seenalrm = seenint = 0; +#ifdef SIGINFO + seeninfo = 0; +#endif + + for (;;) { + struct msghdr m; + u_char buf[1024]; + struct iovec iov[2]; + + /* check deadline */ + if (exitat > 0) { + clock_gettime(CLOCK_MONOTONIC, &now); + if (exitat <= timespec_to_sec(&now)) + break; + } + + /* signal handling */ + if (seenalrm) { + retransmit(); + seenalrm = 0; + continue; + } + if (seenint) { + onsigexit(SIGINT); + seenint = 0; + continue; + } +#ifdef SIGINFO + if (seeninfo) { + summary(); + seeninfo = 0; + continue; + } +#endif + if (options & F_FLOOD) { + (void)pinger(); + timeout = 10; + } else if (deadline > 0) { + timeout = (int)floor(deadline * 1000); + } else { + timeout = INFTIM; + } + fdmaskp[0].fd = s; + fdmaskp[0].events = POLLIN; + cc = prog_poll(fdmaskp, 1, timeout); + if (cc < 0) { + if (errno != EINTR) { + warn("poll"); + sleep(1); + } + continue; + } else if (cc == 0) + continue; + + 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; + m.msg_control = (caddr_t)buf; + m.msg_controllen = sizeof(buf); + + cc = prog_recvmsg(s, &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 possiblity 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 (npackets && nreceived >= npackets) + break; + if (nreceived != 0 && (options & F_ONCE)) + break; + } + summary(); + exit(nreceived == 0); +} + +static void +onsignal(int sig) +{ + + switch (sig) { + case SIGALRM: + seenalrm++; + break; + case SIGINT: + seenint++; + break; +#ifdef SIGINFO + case SIGINFO: + seeninfo++; + break; +#endif + } +} + +/* + * retransmit -- + * This routine transmits another ping6. + */ +static void +retransmit(void) +{ + struct itimerval itimer; + + if (pinger() == 0) + return; + + /* + * If we're not transmitting any more packets, change the timer + * to wait two round-trip times if we've received any packets or + * ten seconds if we haven't. + */ +#define MAXWAIT 10 + if (nreceived) { + itimer.it_value.tv_sec = 2 * tmax / 1000; + if (itimer.it_value.tv_sec == 0) + itimer.it_value.tv_sec = 1; + } else + itimer.it_value.tv_sec = MAXWAIT; + itimer.it_interval.tv_sec = 0; + itimer.it_interval.tv_usec = 0; + itimer.it_value.tv_usec = 0; + + (void)signal(SIGALRM, onsigexit); + (void)setitimer(ITIMER_REAL, &itimer, NULL); +} + +/* + * 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 "timeval" 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); + seq = ntohs(seq); + + if (options & F_FQDN) { + icp->icmp6_code = ICMP6_NI_SUBJ_IPV6; + nip->ni_qtype = htons(NI_QTYPE_FQDN); + nip->ni_flags = htons(0); + + memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr, + sizeof(dst.sin6_addr)); + cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr); + } else if (options & F_FQDNOLD) { + /* packet format in 03 draft - no Subject data on queries */ + icp->icmp6_code = 0; /* code field is always 0 */ + nip->ni_qtype = htons(NI_QTYPE_FQDN); + nip->ni_flags = htons(0); + + cc = ICMP6_NIQLEN; + } else if (options & F_NODEADDR) { + icp->icmp6_code = ICMP6_NI_SUBJ_IPV6; + nip->ni_qtype = htons(NI_QTYPE_NODEADDR); + nip->ni_flags = naflags; + + memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr, + sizeof(dst.sin6_addr)); + cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr); + } else if (options & F_SUPTYPES) { + 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; + + cc = ICMP6_NIQLEN; + } else + cc = 0; /* XXX: gcc */ + + if (options & (F_FQDN|F_FQDNOLD|F_NODEADDR|F_SUPTYPES)) { + icp->icmp6_type = ICMP6_NI_QUERY; + memcpy(nip->icmp6_ni_nonce, nonce, + sizeof(nip->icmp6_ni_nonce)); + memcpy(nip->icmp6_ni_nonce, &seq, sizeof(seq)); + datalen = 0; + } else { + icp->icmp6_type = ICMP6_ECHO_REQUEST; + icp->icmp6_code = 0; + icp->icmp6_id = htons(ident); + icp->icmp6_seq = seq; + if (timing) { + struct timeval tv; + struct tv32 *tv32; + (void)gettimeofday(&tv, NULL); + tv32 = (struct tv32 *)&outpack[ICMP6ECHOLEN]; + tv32->tv32_sec = htonl(tv.tv_sec); + tv32->tv32_usec = htonl(tv.tv_usec); + } + cc = ICMP6ECHOLEN + datalen; + } + +#ifdef DIAGNOSTIC + if (pingerlen() != cc) + errx(1, "internal error; length mismatch"); +#endif + + smsghdr.msg_name = (caddr_t)&dst; + smsghdr.msg_namelen = sizeof(dst); + 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 = prog_sendmsg(s, &smsghdr, 0); + + if (i < 0 || i != cc) { + if (i < 0) + 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; +} + +static 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; + + i = 0; /* XXXGCC -Wuninitialized [sun2] */ + + 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 (l >= (int)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++; + *sp = cp; + return buf; +} + +/* + * 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; + u_char *cp = NULL, *dp, *end = buf + cc; + struct in6_pktinfo *pktinfo = NULL; + struct timeval tv, tp; + struct tv32 *tpp; + double triptime = 0; + int dupflag; + size_t off; + int oldfqdn; + u_int16_t seq; + char dnsname[MAXDNAME + 1]; + + (void)gettimeofday(&tv, NULL); + + 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; + } + 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) { + tpp = (struct tv32 *)(icp + 1); + tp.tv_sec = ntohl(tpp->tv32_sec); + tp.tv_usec = ntohl(tpp->tv32_usec); + tvsub(&tv, &tp); + triptime = ((double)tv.tv_sec) * 1000.0 + + ((double)tv.tv_usec) / 1000.0; + if (maxwait > 0 && triptime > maxwait) { + nreceived--; + return; /* DISCARD */ + } + 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_FLOOD) + (void)write(STDOUT_FILENO, &BSPACE, 1); + else { + (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; +#ifdef SIN6_LEN + dstsa.sin6_len = sizeof(dstsa); +#endif + 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) { + if (dnsdecode((void *)&cp, end, + (const u_char *)(ni + 1), dnsname, + sizeof(dnsname)) == 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) { + 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; + } + ttl = (int32_t)ntohl(*(u_long *)&buf[off+ICMP6ECHOLEN+8]); + 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) +{ + struct cmsghdr *cm; + + for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(mhdr); cm; + cm = (struct cmsghdr *)CMSG_NXTHDR(mhdr, cm)) { + if (cm->cmsg_level != IPPROTO_IPV6) + continue; + + switch (cm->cmsg_type) { + case IPV6_HOPOPTS: + printf(" HbH Options: "); + pr_ip6opt(CMSG_DATA(cm)); + break; + case IPV6_DSTOPTS: +#ifdef IPV6_RTHDRDSTOPTS + case IPV6_RTHDRDSTOPTS: +#endif + printf(" Dst Options: "); + pr_ip6opt(CMSG_DATA(cm)); + break; + case IPV6_RTHDR: + printf(" Routing: "); + pr_rthdr(CMSG_DATA(cm)); + break; + } + } +} + +static void +pr_ip6opt(void *extbuf) +{ + struct ip6_hbh *ext; + int currentlen; + u_int8_t type; + size_t extlen; + socklen_t 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); + + 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) +{ + struct in6_addr *in6; + char ntopbuf[INET6_ADDRSTRLEN]; + struct ip6_rthdr *rh = (struct ip6_rthdr *)extbuf; + int i, segments; + + /* 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); + else + printf("segments unknown, "); + printf("%d left\n", rh->ip6r_segleft); + + for (i = 0; i < segments; i++) { + in6 = inet6_rth_getaddr(extbuf, i); + if (in6 == NULL) + printf(" [%d]\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 /* ni->qtype must be SUPTYPES */, + size_t nilen) +{ + 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) { + size_t skip = 0; + 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); + skip = (size_t)ntohs(cbit.skip) * 32; + if (cur + clen * 8 + skip > 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 + skip; + } +} + +static void +pr_nodeaddr(struct icmp6_nodeinfo *ni, /* ni->qtype must be NODEADDR */ + int nilen) +{ + 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) { + /* XXX: alignment? */ + ttl = (u_int32_t)ntohl(*(u_int32_t *)cp); + 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))) + return(*(int *)CMSG_DATA(cm)); + } + + return(-1); +} + +static struct in6_pktinfo * +get_rcvpktinfo(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(NULL); + + if (cm->cmsg_level == IPPROTO_IPV6 && + cm->cmsg_type == IPV6_PKTINFO && + cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo))) + return((struct in6_pktinfo *)CMSG_DATA(cm)); + } + + return(NULL); +} + +static int +get_pathmtu(struct msghdr *mhdr) +{ +#ifdef IPV6_RECVPATHMTU + struct cmsghdr *cm; + struct ip6_mtuinfo *mtuctl = NULL; + + 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))) { + mtuctl = (struct ip6_mtuinfo *)CMSG_DATA(cm); + + /* + * 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); +} + +/* + * tvsub -- + * Subtract 2 timeval structs: out = out - in. Out is assumed to + * be >= in. + */ +static void +tvsub(struct timeval *out, struct timeval *in) +{ + if ((out->tv_usec -= in->tv_usec) < 0) { + --out->tv_sec; + out->tv_usec += 1000000; + } + out->tv_sec -= in->tv_sec; +} + +/* + * onsigexit -- + */ +static void +onsigexit(int sig) +{ + summary(); + + if (sig == SIGINT) { + (void)signal(SIGINT, SIG_DFL); + (void)kill(getpid(), SIGINT); + } + + exit(1); +} + +/* + * 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)); + } + (void)putchar('\n'); + if (nreceived && timing) { + /* Only display average to microseconds */ + double num = nreceived + nrepeats; + double dev, avg; + if (num > 1) { + avg = tsum / num; + dev = sqrt((tsumsq - num * avg * avg) / (num - 1)); + } else { + avg = tsum; + dev = 0.0; + } + (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); + if (dnsdecode(&cp, end, NULL, dnsname, + sizeof(dnsname)) != 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 >= sizeof(nircode) / sizeof(nircode[0])) + 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 (getnameinfo(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 (end - (u_char *)ip6 < (intptr_t)sizeof(*ip6)) { + printf("IP6"); + goto trunc; + } + pr_iph(ip6); + hlen = sizeof(*ip6); + + nh = ip6->ip6_nxt; + cp += hlen; + while (end - cp >= 8) { + 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 "); + hlen = (((struct ip6_ext *)cp)->ip6e_len+2) << 2; + nh = ((struct ip6_ext *)cp)->ip6e_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((unsigned char)*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; + kk <= (int)(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, 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 (prog_setsockopt(s, 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) +{ + 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; + + 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 8 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 (inet_pton(AF_INET6, "ff02::2:0000:0000", &in6) != 1) + return NULL; /*XXX*/ + bcopy(digest, &in6.s6_addr[12], 4); + + if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL) + return NULL; + + return strdup(hbuf); +} + +static double +timespec_to_sec(const struct timespec *tp) +{ + return tp->tv_sec + tp->tv_nsec / 1000000000.0; +} + +static void +usage(void) +{ + (void)fprintf(stderr, + "usage: ping6 [-dfH" +#ifdef IPV6_USE_MIN_MTU + "m" +#endif + "nNqtvwW" +#ifdef IPV6_REACHCONF + "R" +#endif +#ifdef IPSEC +#ifdef IPSEC_POLICY_IPSEC + "] [-P policy" +#else + "AE" +#endif +#endif + "] [-a [aAclsg]] [-b sockbufsiz] [-c count]\n" + "\t[-I interface] [-i wait] [-l preload] [-p pattern] " + "[-X deadline]\n" + "\t[-x maxwait] [-S sourceaddr] " + "[-s packetsize] [-h hoplimit]\n" + "\t[-g gateway] [hops...] host\n"); + exit(1); +} diff --git a/sbin/ping6/ping6_hostops.c b/sbin/ping6/ping6_hostops.c new file mode 100644 index 000000000..4c1d1c25e --- /dev/null +++ b/sbin/ping6/ping6_hostops.c @@ -0,0 +1,55 @@ +/* $NetBSD: ping6_hostops.c,v 1.1 2015/08/06 14:45:54 ozaki-r Exp $ */ + +/* + * Copyright (c) 2015 The NetBSD Foundation, Inc. + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#ifndef lint +__RCSID("$NetBSD: ping6_hostops.c,v 1.1 2015/08/06 14:45:54 ozaki-r Exp $"); +#endif /* !lint */ + +#include +#include +#include + +#include +#include + +#include "prog_ops.h" + +const struct prog_ops prog_ops = { + .op_socket = socket, + .op_setsockopt = setsockopt, + .op_getsockname = getsockname, + .op_poll = poll, + .op_recvmsg = recvmsg, + .op_sendmsg = sendmsg, + .op_connect = connect, + .op_close = close, + .op_getuid = getuid, + .op_setuid = setuid, + .op_seteuid = seteuid, +}; diff --git a/sbin/ping6/ping6_rumpops.c b/sbin/ping6/ping6_rumpops.c new file mode 100644 index 000000000..672135aef --- /dev/null +++ b/sbin/ping6/ping6_rumpops.c @@ -0,0 +1,60 @@ +/* $NetBSD: ping6_rumpops.c,v 1.1 2015/08/06 14:45:54 ozaki-r Exp $ */ + +/* + * Copyright (c) 2015 The NetBSD Foundation, Inc. + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#ifndef lint +__RCSID("$NetBSD: ping6_rumpops.c,v 1.1 2015/08/06 14:45:54 ozaki-r Exp $"); +#endif /* !lint */ + +#include +#include + +#include +#include + +#include +#include +#include + +#include "prog_ops.h" + +const struct prog_ops prog_ops = { + .op_init = rumpclient_init, + + .op_socket = rump_sys_socket, + .op_setsockopt= rump_sys_setsockopt, + .op_getsockname=rump_sys_getsockname, + .op_poll = rump_sys_poll, + .op_sendmsg = rump_sys_sendmsg, + .op_recvmsg = rump_sys_recvmsg, + .op_connect = rump_sys_connect, + .op_close = rump_sys_close, + .op_getuid = rump_sys_getuid, + .op_setuid = rump_sys_setuid, + .op_seteuid = rump_sys_seteuid, +}; diff --git a/sbin/ping6/prog_ops.h b/sbin/ping6/prog_ops.h new file mode 100644 index 000000000..144e9d10b --- /dev/null +++ b/sbin/ping6/prog_ops.h @@ -0,0 +1,86 @@ +/* $NetBSD: prog_ops.h,v 1.1 2015/08/06 14:45:54 ozaki-r Exp $ */ + +/* + * Copyright (c) 2015 The NetBSD Foundation, Inc. + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +#ifndef _PROG_OPS_H_ +#define _PROG_OPS_H_ + +#include + +#ifndef CRUNCHOPS +struct prog_ops { + int (*op_init)(void); + + int (*op_socket)(int, int, int); + int (*op_setsockopt)(int, int, int, const void *, socklen_t); + int (*op_getsockname)(int, struct sockaddr * restrict, + socklen_t * restrict); + + int (*op_poll)(struct pollfd *, nfds_t, int); + + ssize_t (*op_recvmsg)(int, struct msghdr *, int); + ssize_t (*op_sendmsg)(int, const struct msghdr *, int); + + int (*op_connect)(int, const struct sockaddr *, socklen_t); + int (*op_close)(int); + + uid_t (*op_getuid)(void); + int (*op_setuid)(uid_t); + int (*op_seteuid)(uid_t); +}; +extern const struct prog_ops prog_ops; + +#define prog_init prog_ops.op_init +#define prog_socket prog_ops.op_socket +#define prog_setsockopt prog_ops.op_setsockopt +#define prog_getsockname prog_ops.op_getsockname +#define prog_shutdown prog_ops.op_shutdown +#define prog_poll prog_ops.op_poll +#define prog_recvmsg prog_ops.op_recvmsg +#define prog_sendmsg prog_ops.op_sendmsg +#define prog_connect prog_ops.op_connect +#define prog_close prog_ops.op_close +#define prog_getuid prog_ops.op_getuid +#define prog_setuid prog_ops.op_setuid +#define prog_seteuid prog_ops.op_seteuid +#else +#define prog_init ((int (*)(void))NULL) +#define prog_socket socket +#define prog_setsockopt setsockopt +#define prog_getsockname getsockname +#define prog_shutdown shutdown +#define prog_poll poll +#define prog_recvmsg recvmsg +#define prog_sendmsg sendmsg +#define prog_connect connect +#define prog_close close +#define prog_getuid getuid +#define prog_setuid setuid +#define prog_seteuid seteuid +#endif + +#endif /* _PROG_OPS_H_ */ -- 2.44.0