1972 lines
49 KiB
C
1972 lines
49 KiB
C
/* $KAME: ping6.c,v 1.54 2000/06/12 16:16:44 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* BSDI ping.c,v 2.3 1996/01/21 17:56:50 jch Exp */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Mike Muuss.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/*
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* Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
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* measure round-trip-delays and packet loss across network paths.
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*
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* Author -
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* Mike Muuss
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* U. S. Army Ballistic Research Laboratory
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* December, 1983
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*
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* Status -
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* Public Domain. Distribution Unlimited.
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* Bugs -
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* More statistics could always be gathered.
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* This program has to run SUID to ROOT to access the ICMP socket.
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*/
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/*
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* NOTE:
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* USE_SIN6_SCOPE_ID assumes that sin6_scope_id has the same semantics
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* as IPV6_PKTINFO. Some people object it (sin6_scope_id specifies *link* while
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* IPV6_PKTINFO specifies *interface*. Link is defined as collection of
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* network attached to 1 or more interfaces)
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*/
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#include <sys/param.h>
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#include <sys/uio.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <netinet/ip6.h>
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#include <netinet/icmp6.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef IPSEC
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#include <netinet6/ah.h>
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#include <netinet6/ipsec.h>
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#endif
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#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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#include <md5.h>
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#else
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#include "md5.h"
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#endif
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#define MAXPACKETLEN 131072
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#define IP6LEN 40
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#define ICMP6ECHOLEN 8 /* icmp echo header len excluding time */
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#define ICMP6ECHOTMLEN sizeof(struct timeval)
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#define ICMP6_NIQLEN (ICMP6ECHOLEN + 8)
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#define ICMP6_NIRLEN (ICMP6ECHOLEN + 12) /* 64 bits of nonce + 32 bits ttl */
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#define EXTRA 256 /* for AH and various other headers. weird. */
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#define DEFDATALEN ICMP6ECHOTMLEN
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#define MAXDATALEN MAXPACKETLEN - IP6LEN - ICMP6ECHOLEN
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#define NROUTES 9 /* number of record route slots */
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#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
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#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
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#define SET(bit) (A(bit) |= B(bit))
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#define CLR(bit) (A(bit) &= (~B(bit)))
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#define TST(bit) (A(bit) & B(bit))
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#define F_FLOOD 0x0001
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#define F_INTERVAL 0x0002
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#define F_NUMERIC 0x0004
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#define F_PINGFILLED 0x0008
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#define F_QUIET 0x0010
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#define F_RROUTE 0x0020
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#define F_SO_DEBUG 0x0040
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#define F_VERBOSE 0x0100
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#ifdef IPSEC
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#ifdef IPSEC_POLICY_IPSEC
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#define F_POLICY 0x0400
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#else
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#define F_AUTHHDR 0x0200
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#define F_ENCRYPT 0x0400
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#endif /*IPSEC_POLICY_IPSEC*/
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#endif /*IPSEC*/
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#define F_NODEADDR 0x0800
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#define F_FQDN 0x1000
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#define F_INTERFACE 0x2000
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#define F_SRCADDR 0x4000
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#ifdef IPV6_REACHCONF
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#define F_REACHCONF 0x8000
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#endif
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#define F_HOSTNAME 0x10000
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#define F_FQDNOLD 0x20000
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#define F_NIGROUP 0x40000
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u_int options;
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#define IN6LEN sizeof(struct in6_addr)
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#define SA6LEN sizeof(struct sockaddr_in6)
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#define DUMMY_PORT 10101
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#define SIN6(s) ((struct sockaddr_in6 *)(s))
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/*
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* MAX_DUP_CHK is the number of bits in received table, i.e. the maximum
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* number of received sequence numbers we can keep track of. Change 128
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* to 8192 for complete accuracy...
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*/
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#define MAX_DUP_CHK (8 * 8192)
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int mx_dup_ck = MAX_DUP_CHK;
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char rcvd_tbl[MAX_DUP_CHK / 8];
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struct addrinfo *res;
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struct sockaddr_in6 dst; /* who to ping6 */
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struct sockaddr_in6 src; /* src addr of this packet */
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int datalen = DEFDATALEN;
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int s; /* socket file descriptor */
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u_char outpack[MAXPACKETLEN];
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char BSPACE = '\b'; /* characters written for flood */
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char DOT = '.';
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char *hostname;
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int ident; /* process id to identify our packets */
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struct in6_addr srcaddr;
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/* counters */
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long npackets; /* max packets to transmit */
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long nreceived; /* # of packets we got back */
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long nrepeats; /* number of duplicates */
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long ntransmitted; /* sequence # for outbound packets = #sent */
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int interval = 1; /* interval between packets */
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int hoplimit = -1; /* hoplimit */
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/* timing */
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int timing; /* flag to do timing */
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double tmin = 999999999.0; /* minimum round trip time */
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double tmax = 0.0; /* maximum round trip time */
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double tsum = 0.0; /* sum of all times, for doing average */
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/* for node addresses */
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u_short naflags;
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/* for ancillary data(advanced API) */
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struct msghdr smsghdr;
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struct iovec smsgiov;
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char *scmsg = 0;
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int main __P((int, char *[]));
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void fill __P((char *, char *));
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int get_hoplim __P((struct msghdr *));
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struct in6_pktinfo *get_rcvpktinfo __P((struct msghdr *));
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void onalrm __P((int));
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void oninfo __P((int));
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void onint __P((int));
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void pinger __P((void));
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const char *pr_addr __P((struct sockaddr_in6 *));
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void pr_icmph __P((struct icmp6_hdr *, u_char *));
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void pr_iph __P((struct ip6_hdr *));
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void pr_nodeaddr __P((struct icmp6_nodeinfo *, int));
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void pr_pack __P((u_char *, int, struct msghdr *));
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void pr_exthdrs __P((struct msghdr *));
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void pr_ip6opt __P((void *));
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void pr_rthdr __P((void *));
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void pr_retip __P((struct ip6_hdr *, u_char *));
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void summary __P((void));
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void tvsub __P((struct timeval *, struct timeval *));
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int setpolicy __P((int, char *));
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char *nigroup __P((char *));
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void usage __P((void));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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struct itimerval itimer;
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struct sockaddr_in6 from;
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struct timeval timeout;
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struct addrinfo hints;
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fd_set fdset;
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register int cc, i;
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int ch, fromlen, hold, packlen, preload, optval, ret_ga;
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u_char *datap, *packet;
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char *e, *target, *ifname = NULL;
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int ip6optlen = 0;
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struct cmsghdr *scmsgp = NULL;
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int sockbufsize = 0;
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int usepktinfo = 0;
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struct in6_pktinfo *pktinfo = NULL;
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#ifdef USE_RFC2292BIS
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struct ip6_rthdr *rthdr = NULL;
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#endif
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#ifdef IPSEC_POLICY_IPSEC
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char *policy_in = NULL;
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char *policy_out = NULL;
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#endif
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/* just to be sure */
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memset(&smsghdr, 0, sizeof(&smsghdr));
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memset(&smsgiov, 0, sizeof(&smsgiov));
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preload = 0;
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datap = &outpack[ICMP6ECHOLEN + ICMP6ECHOTMLEN];
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#ifndef IPSEC
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while ((ch = getopt(argc, argv, "a:b:c:dfHh:I:i:l:nNp:qRS:s:vwW")) != EOF)
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#else
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#ifdef IPSEC_POLICY_IPSEC
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while ((ch = getopt(argc, argv, "a:b:c:dfHh:I:i:l:nNp:qRS:s:vwWP:")) != EOF)
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#else
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while ((ch = getopt(argc, argv, "a:b:c:dfHh:I:i:l:nNp:qRS:s:vwWAE")) != EOF)
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#endif /*IPSEC_POLICY_IPSEC*/
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#endif
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{
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switch(ch) {
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case 'a':
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{
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char *cp;
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options |= F_NODEADDR;
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datalen = 2048; /* XXX: enough? */
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for (cp = optarg; *cp != '\0'; cp++) {
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switch(*cp) {
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case 'a':
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naflags |= NI_NODEADDR_FLAG_ALL;
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break;
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case 'c':
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case 'C':
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naflags |= NI_NODEADDR_FLAG_COMPAT;
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break;
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case 'l':
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case 'L':
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naflags |= NI_NODEADDR_FLAG_LINKLOCAL;
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break;
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case 's':
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case 'S':
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naflags |= NI_NODEADDR_FLAG_SITELOCAL;
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break;
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case 'g':
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case 'G':
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naflags |= NI_NODEADDR_FLAG_GLOBAL;
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break;
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case 'A': /* experimental. not in the spec */
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naflags |= NI_NODEADDR_FLAG_ANYCAST;
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break;
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default:
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usage();
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/*NOTREACHED*/
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}
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}
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break;
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}
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case 'b':
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#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
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sockbufsize = atoi(optarg);
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#else
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err(1,
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"-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");
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#endif
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break;
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case 'c':
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npackets = strtol(optarg, &e, 10);
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if (npackets <= 0 || *optarg == '\0' || *e != '\0')
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errx(1,
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"illegal number of packets -- %s", optarg);
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break;
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case 'd':
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options |= F_SO_DEBUG;
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break;
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case 'f':
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if (getuid()) {
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errno = EPERM;
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errx(1, "Must be superuser to flood ping");
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}
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options |= F_FLOOD;
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setbuf(stdout, (char *)NULL);
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break;
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case 'H':
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options |= F_HOSTNAME;
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break;
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case 'h': /* hoplimit */
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hoplimit = strtol(optarg, &e, 10);
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if (255 < hoplimit || hoplimit < -1)
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errx(1,
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"illegal hoplimit -- %s", optarg);
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break;
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case 'I':
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ifname = optarg;
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options |= F_INTERFACE;
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#ifndef USE_SIN6_SCOPE_ID
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usepktinfo++;
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#endif
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break;
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case 'i': /* wait between sending packets */
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interval = strtol(optarg, &e, 10);
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if (interval <= 0 || *optarg == '\0' || *e != '\0')
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errx(1,
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"illegal timing interval -- %s", optarg);
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options |= F_INTERVAL;
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break;
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case 'l':
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if (getuid()) {
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errno = EPERM;
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errx(1, "Must be superuser to preload");
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}
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preload = strtol(optarg, &e, 10);
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if (preload < 0 || *optarg == '\0' || *e != '\0')
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errx(1, "illegal preload value -- %s", optarg);
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break;
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case 'n':
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options |= F_NUMERIC;
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break;
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case 'N':
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options |= F_NIGROUP;
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break;
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case 'p': /* fill buffer with user pattern */
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options |= F_PINGFILLED;
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fill((char *)datap, optarg);
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break;
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case 'q':
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options |= F_QUIET;
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break;
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case 'R':
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#ifdef IPV6_REACHCONF
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options |= F_REACHCONF;
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break;
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#else
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errx(1, "-R is not supported in this configuration");
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#endif
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case 'S':
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/* XXX: use getaddrinfo? */
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if (inet_pton(AF_INET6, optarg, (void *)&srcaddr) != 1)
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errx(1, "invalid IPv6 address: %s", optarg);
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options |= F_SRCADDR;
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usepktinfo++;
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break;
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case 's': /* size of packet to send */
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datalen = strtol(optarg, &e, 10);
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if (datalen <= 0 || *optarg == '\0' || *e != '\0')
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errx(1, "illegal datalen value -- %s", optarg);
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if (datalen > MAXDATALEN)
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errx(1,
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"datalen value too large, maximum is %d",
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MAXDATALEN);
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break;
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case 'v':
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options |= F_VERBOSE;
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break;
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case 'w':
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options |= F_FQDN;
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break;
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case 'W':
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options |= F_FQDNOLD;
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break;
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#ifdef IPSEC
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#ifdef IPSEC_POLICY_IPSEC
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case 'P':
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options |= F_POLICY;
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if (!strncmp("in", optarg, 2))
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policy_in = strdup(optarg);
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else if (!strncmp("out", optarg, 3))
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policy_out = strdup(optarg);
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else
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errx(1, "invalid security policy");
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break;
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#else
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case 'A':
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options |= F_AUTHHDR;
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break;
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case 'E':
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options |= F_ENCRYPT;
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break;
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#endif /*IPSEC_POLICY_IPSEC*/
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#endif /*IPSEC*/
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default:
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usage();
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/*NOTREACHED*/
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1) {
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usage();
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/*NOTREACHED*/
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}
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if (argc > 1) {
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#ifdef USE_SIN6_SCOPE_ID
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ip6optlen += CMSG_SPACE(inet6_rth_space(IPV6_RTHDR_TYPE_0, argc - 1));
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#else /* old advanced API */
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ip6optlen += inet6_rthdr_space(IPV6_RTHDR_TYPE_0, argc - 1);
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#endif
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}
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if (options & F_NIGROUP) {
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target = nigroup(argv[argc - 1]);
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if (target == NULL) {
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usage();
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/*NOTREACHED*/
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}
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} else
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target = argv[argc - 1];
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|
|
/* getaddrinfo */
|
|
bzero(&hints, sizeof(struct addrinfo));
|
|
if ((options & F_NUMERIC) != 0)
|
|
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) {
|
|
fprintf(stderr, "ping6: %s\n", gai_strerror(ret_ga));
|
|
exit(1);
|
|
}
|
|
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 (options & F_FLOOD && options & F_INTERVAL)
|
|
errx(1, "-f and -i incompatible options");
|
|
|
|
if (datalen >= sizeof(struct timeval)) /* can we time transfer */
|
|
timing = 1;
|
|
packlen = datalen + IP6LEN + ICMP6ECHOLEN + EXTRA;
|
|
if (!(packet = (u_char *)malloc((u_int)packlen)))
|
|
err(1, "Unable to allocate packet");
|
|
if (!(options & F_PINGFILLED))
|
|
for (i = 8; i < datalen; ++i)
|
|
*datap++ = i;
|
|
|
|
ident = getpid() & 0xFFFF;
|
|
|
|
if ((s = socket(res->ai_family, res->ai_socktype, res->ai_protocol)) < 0)
|
|
err(1, "socket");
|
|
|
|
hold = 1;
|
|
|
|
if (options & F_SO_DEBUG)
|
|
(void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&hold,
|
|
sizeof(hold));
|
|
optval = IPV6_DEFHLIM;
|
|
if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
|
|
&optval, sizeof(optval)) == -1)
|
|
err(1, "IPV6_MULTICAST_HOPS");
|
|
|
|
#ifdef IPSEC
|
|
#ifdef IPSEC_POLICY_IPSEC
|
|
if (options & F_POLICY) {
|
|
if (setpolicy(s, policy_in) < 0)
|
|
errx(1, ipsec_strerror());
|
|
if (setpolicy(s, policy_out) < 0)
|
|
errx(1, ipsec_strerror());
|
|
}
|
|
#else
|
|
if (options & F_AUTHHDR) {
|
|
optval = IPSEC_LEVEL_REQUIRE;
|
|
#ifdef IPV6_AUTH_TRANS_LEVEL
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_AUTH_TRANS_LEVEL,
|
|
&optval, sizeof(optval)) == -1)
|
|
err(1, "setsockopt(IPV6_AUTH_TRANS_LEVEL)");
|
|
#else /* old def */
|
|
if (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 (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))
|
|
ICMP6_FILTER_SETPASS(ICMP6_NI_REPLY, &filt);
|
|
else
|
|
ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
|
|
} else {
|
|
ICMP6_FILTER_SETPASSALL(&filt);
|
|
}
|
|
if (setsockopt(s, 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 */
|
|
/* TODO: implement parsing routine */
|
|
if ((options & F_VERBOSE) != 0) {
|
|
int opton = 1;
|
|
|
|
#ifdef IPV6_RECVRTHDR
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDR, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_RECVRTHDR)");
|
|
#else /* old adv. API */
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RTHDR, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_RTHDR)");
|
|
#endif
|
|
#ifdef IPV6_RECVHOPOPTS
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_RECVHOPOPTS)");
|
|
#else /* old adv. API */
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPOPTS, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_HOPOPTS)");
|
|
#endif
|
|
#ifdef IPV6_RECVDSTOPTS
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVDSTOPTS, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_RECVDSTOPTS)");
|
|
#else /* olad adv. API */
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_DSTOPTS, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_DSTOPTS)");
|
|
#endif
|
|
#ifdef IPV6_RECVRTHDRDSTOPTS
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVRTHDRDSTOPTS, &opton,
|
|
sizeof(opton)))
|
|
err(1, "setsockopt(IPV6_RECVRTHDRDSTOPTS)");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
optval = 1;
|
|
if (IN6_IS_ADDR_MULTICAST(&dst.sin6_addr))
|
|
if (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
|
|
}
|
|
/* set the source address */
|
|
if (options & F_SRCADDR)/* pktinfo must be valid */
|
|
pktinfo->ipi6_addr = srcaddr;
|
|
|
|
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;
|
|
#ifdef USE_RFC2292BIS
|
|
int rthdrlen;
|
|
#endif
|
|
|
|
#ifdef USE_RFC2292BIS
|
|
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");
|
|
#else /* old advanced API */
|
|
if ((scmsgp = (struct cmsghdr *)inet6_rthdr_init(scmsgp,
|
|
IPV6_RTHDR_TYPE_0)) == 0)
|
|
errx(1, "can't initialize rthdr");
|
|
#endif /* USE_RFC2292BIS */
|
|
|
|
for (hops = 0; hops < argc - 1; hops++) {
|
|
struct addrinfo *iaip;
|
|
|
|
if ((error = getaddrinfo(argv[hops], NULL, &hints, &iaip)))
|
|
errx(1, gai_strerror(error));
|
|
if (SIN6(res->ai_addr)->sin6_family != AF_INET6)
|
|
errx(1,
|
|
"bad addr family of an intermediate addr");
|
|
|
|
#ifdef USE_RFC2292BIS
|
|
if (inet6_rth_add(rthdr,
|
|
&(SIN6(iaip->ai_addr))->sin6_addr))
|
|
errx(1, "can't add an intermediate node");
|
|
#else /* old advanced API */
|
|
if (inet6_rthdr_add(scmsgp,
|
|
&(SIN6(iaip->ai_addr))->sin6_addr,
|
|
IPV6_RTHDR_LOOSE))
|
|
errx(1, "can't add an intermediate node");
|
|
#endif /* USE_RFC2292BIS */
|
|
}
|
|
|
|
#ifndef USE_RFC2292BIS
|
|
if (inet6_rthdr_lasthop(scmsgp, IPV6_RTHDR_LOOSE))
|
|
errx(1, "can't set the last flag");
|
|
#endif
|
|
|
|
scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
|
|
}
|
|
|
|
{
|
|
/*
|
|
* source selection
|
|
*/
|
|
int dummy, 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;
|
|
|
|
|
|
#ifdef USE_SIN6_SCOPE_ID
|
|
src.sin6_scope_id = dst.sin6_scope_id;
|
|
#endif
|
|
|
|
#ifdef USE_RFC2292BIS
|
|
if (pktinfo &&
|
|
setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTINFO,
|
|
(void *)pktinfo, sizeof(*pktinfo)))
|
|
err(1, "UDP setsockopt(IPV6_PKTINFO)");
|
|
|
|
if (hoplimit != -1 &&
|
|
setsockopt(dummy, IPPROTO_IPV6, IPV6_HOPLIMIT,
|
|
(void *)&hoplimit, sizeof(hoplimit)))
|
|
err(1, "UDP setsockopt(IPV6_HOPLIMIT)");
|
|
|
|
if (rthdr &&
|
|
setsockopt(dummy, IPPROTO_IPV6, IPV6_RTHDR,
|
|
(void *)rthdr, (rthdr->ip6r_len + 1) << 3))
|
|
err(1, "UDP setsockopt(IPV6_RTHDR)");
|
|
#else /* old advanced API */
|
|
if (smsghdr.msg_control &&
|
|
setsockopt(dummy, IPPROTO_IPV6, IPV6_PKTOPTIONS,
|
|
(void *)smsghdr.msg_control,
|
|
smsghdr.msg_controllen)) {
|
|
err(1, "UDP setsockopt(IPV6_PKTOPTIONS)");
|
|
}
|
|
#endif
|
|
|
|
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);
|
|
}
|
|
|
|
#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
|
|
if (sockbufsize) {
|
|
if (datalen > sockbufsize)
|
|
warnx("you need -b to increase socket buffer size");
|
|
if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sockbufsize,
|
|
sizeof(sockbufsize)) < 0)
|
|
err(1, "setsockopt(SO_SNDBUF)");
|
|
if (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;
|
|
setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *)&hold, sizeof(hold));
|
|
}
|
|
#endif
|
|
|
|
optval = 1;
|
|
#ifndef USE_SIN6_SCOPE_ID
|
|
#ifdef IPV6_RECVPKTINFO
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval,
|
|
sizeof(optval)) < 0)
|
|
warn("setsockopt(IPV6_RECVPKTINFO)"); /* XXX err? */
|
|
#else /* old adv. API */
|
|
if (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 (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &optval,
|
|
sizeof(optval)) < 0)
|
|
warn("setsockopt(IPV6_RECVHOPLIMIT)"); /* XXX err? */
|
|
#else /* old adv. API */
|
|
if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &optval,
|
|
sizeof(optval)) < 0)
|
|
warn("setsockopt(IPV6_HOPLIMIT)"); /* XXX err? */
|
|
#endif
|
|
|
|
printf("PING6(%d=40+8+%d bytes) ", datalen + 48, datalen);
|
|
printf("%s --> ", pr_addr(&src));
|
|
printf("%s\n", pr_addr(&dst));
|
|
|
|
while (preload--) /* Fire off them quickies. */
|
|
pinger();
|
|
|
|
(void)signal(SIGINT, onint);
|
|
(void)signal(SIGINFO, oninfo);
|
|
|
|
if ((options & F_FLOOD) == 0) {
|
|
(void)signal(SIGALRM, onalrm);
|
|
itimer.it_interval.tv_sec = interval;
|
|
itimer.it_interval.tv_usec = 0;
|
|
itimer.it_value.tv_sec = 0;
|
|
itimer.it_value.tv_usec = 1;
|
|
(void)setitimer(ITIMER_REAL, &itimer, NULL);
|
|
}
|
|
|
|
FD_ZERO(&fdset);
|
|
timeout.tv_sec = 0;
|
|
timeout.tv_usec = 10000;
|
|
for (;;) {
|
|
struct msghdr m;
|
|
struct cmsghdr *cm;
|
|
u_char buf[1024];
|
|
struct iovec iov[2];
|
|
|
|
if (options & F_FLOOD) {
|
|
pinger();
|
|
FD_SET(s, &fdset);
|
|
if (select(s + 1, &fdset, NULL, NULL, &timeout) < 1)
|
|
continue;
|
|
}
|
|
fromlen = sizeof(from);
|
|
|
|
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;
|
|
cm = (struct cmsghdr *)buf;
|
|
m.msg_control = (caddr_t)buf;
|
|
m.msg_controllen = sizeof(buf);
|
|
|
|
if ((cc = recvmsg(s, &m, 0)) < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
warn("recvfrom");
|
|
continue;
|
|
}
|
|
|
|
pr_pack(packet, cc, &m);
|
|
if (npackets && nreceived >= npackets)
|
|
break;
|
|
}
|
|
summary();
|
|
exit(nreceived == 0);
|
|
}
|
|
|
|
/*
|
|
* onalrm --
|
|
* This routine transmits another ping6.
|
|
*/
|
|
/* ARGSUSED */
|
|
void
|
|
onalrm(signo)
|
|
int signo;
|
|
{
|
|
struct itimerval itimer;
|
|
|
|
if (!npackets || ntransmitted < npackets) {
|
|
pinger();
|
|
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, onint);
|
|
(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.
|
|
*/
|
|
void
|
|
pinger()
|
|
{
|
|
struct icmp6_hdr *icp;
|
|
struct iovec iov[2];
|
|
int i, cc;
|
|
|
|
icp = (struct icmp6_hdr *)outpack;
|
|
memset(icp, 0, sizeof(*icp));
|
|
icp->icmp6_code = 0;
|
|
icp->icmp6_cksum = 0;
|
|
icp->icmp6_seq = ntransmitted++; /* htons later */
|
|
icp->icmp6_id = htons(ident); /* ID */
|
|
|
|
CLR(icp->icmp6_seq % mx_dup_ck);
|
|
icp->icmp6_seq = htons(icp->icmp6_seq);
|
|
|
|
if (options & F_FQDN) {
|
|
icp->icmp6_type = ICMP6_NI_QUERY;
|
|
icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
|
|
/* XXX: overwrite icmp6_id */
|
|
((struct icmp6_nodeinfo *)icp)->ni_qtype = htons(NI_QTYPE_FQDN);
|
|
((struct icmp6_nodeinfo *)icp)->ni_flags = htons(0);
|
|
if (timing)
|
|
(void)gettimeofday((struct timeval *)
|
|
&outpack[ICMP6ECHOLEN], NULL);
|
|
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) {
|
|
/* packet format in 03 draft - no Subject data on queries */
|
|
icp->icmp6_type = ICMP6_NI_QUERY;
|
|
/* code field is always 0 */
|
|
/* XXX: overwrite icmp6_id */
|
|
((struct icmp6_nodeinfo *)icp)->ni_qtype = htons(NI_QTYPE_FQDN);
|
|
((struct icmp6_nodeinfo *)icp)->ni_flags = htons(0);
|
|
if (timing)
|
|
(void)gettimeofday((struct timeval *)
|
|
&outpack[ICMP6ECHOLEN], NULL);
|
|
cc = ICMP6_NIQLEN;
|
|
datalen = 0;
|
|
} else if (options & F_NODEADDR) {
|
|
icp->icmp6_type = ICMP6_NI_QUERY;
|
|
icp->icmp6_code = ICMP6_NI_SUBJ_IPV6;
|
|
/* XXX: overwrite icmp6_id */
|
|
((struct icmp6_nodeinfo *)icp)->ni_qtype =
|
|
htons(NI_QTYPE_NODEADDR);
|
|
((struct icmp6_nodeinfo *)icp)->ni_flags = htons(0);
|
|
if (timing)
|
|
(void)gettimeofday((struct timeval *)
|
|
&outpack[ICMP6ECHOLEN], NULL);
|
|
memcpy(&outpack[ICMP6_NIQLEN], &dst.sin6_addr,
|
|
sizeof(dst.sin6_addr));
|
|
cc = ICMP6_NIQLEN + sizeof(dst.sin6_addr);
|
|
datalen = 0;
|
|
((struct icmp6_nodeinfo *)icp)->ni_flags = naflags;
|
|
}
|
|
else {
|
|
icp->icmp6_type = ICMP6_ECHO_REQUEST;
|
|
if (timing)
|
|
(void)gettimeofday((struct timeval *)
|
|
&outpack[ICMP6ECHOLEN], NULL);
|
|
cc = ICMP6ECHOLEN + datalen;
|
|
}
|
|
|
|
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 = 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);
|
|
}
|
|
|
|
/*
|
|
* 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!).
|
|
*/
|
|
void
|
|
pr_pack(buf, cc, mhdr)
|
|
u_char *buf;
|
|
int cc;
|
|
struct msghdr *mhdr;
|
|
{
|
|
#define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
|
|
struct icmp6_hdr *icp;
|
|
int i;
|
|
int hoplim;
|
|
struct sockaddr_in6 *from = (struct sockaddr_in6 *)mhdr->msg_name;
|
|
u_char *cp = NULL, *dp, *end = buf + cc;
|
|
struct in6_pktinfo *pktinfo = NULL;
|
|
struct timeval tv, *tp;
|
|
double triptime = 0;
|
|
int dupflag;
|
|
size_t off;
|
|
int oldfqdn;
|
|
|
|
(void)gettimeofday(&tv, NULL);
|
|
|
|
if (cc < sizeof(struct icmp6_hdr)) {
|
|
if (options & F_VERBOSE)
|
|
warnx("packet too short (%d bytes) from %s\n", cc,
|
|
pr_addr(from));
|
|
return;
|
|
}
|
|
icp = (struct icmp6_hdr *)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 pakcet information");
|
|
return;
|
|
}
|
|
|
|
if (icp->icmp6_type == ICMP6_ECHO_REPLY) {
|
|
/* XXX the following line overwrites the original packet */
|
|
icp->icmp6_seq = ntohs(icp->icmp6_seq);
|
|
if (ntohs(icp->icmp6_id) != ident)
|
|
return; /* It was not our ECHO */
|
|
++nreceived;
|
|
if (timing) {
|
|
tp = (struct timeval *)(icp + 1);
|
|
tvsub(&tv, tp);
|
|
triptime = ((double)tv.tv_sec) * 1000.0 +
|
|
((double)tv.tv_usec) / 1000.0;
|
|
tsum += triptime;
|
|
if (triptime < tmin)
|
|
tmin = triptime;
|
|
if (triptime > tmax)
|
|
tmax = triptime;
|
|
}
|
|
|
|
if (TST(icp->icmp6_seq % mx_dup_ck)) {
|
|
++nrepeats;
|
|
--nreceived;
|
|
dupflag = 1;
|
|
} else {
|
|
SET(icp->icmp6_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),
|
|
icp->icmp6_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(&dstsa));
|
|
}
|
|
if (timing)
|
|
(void)printf(" time=%g 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) { /* ICMP6_NI_REPLY */
|
|
struct icmp6_nodeinfo *ni = (struct icmp6_nodeinfo *)(buf + off);
|
|
|
|
(void)printf("%d bytes from %s: ", cc,
|
|
pr_addr(from));
|
|
|
|
switch(ntohs(ni->ni_qtype)) {
|
|
case NI_QTYPE_NOOP:
|
|
printf("NodeInfo NOOP");
|
|
break;
|
|
case NI_QTYPE_SUPTYPES:
|
|
printf("NodeInfo Supported Qtypes");
|
|
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++;
|
|
while (cp < end) {
|
|
safeputc(*cp & 0xff);
|
|
cp++;
|
|
}
|
|
} else {
|
|
while (cp < end) {
|
|
i = *cp++;
|
|
if (i) {
|
|
if (i > end - cp) {
|
|
printf("???");
|
|
break;
|
|
}
|
|
while (i-- && cp < end) {
|
|
safeputc(*cp & 0xff);
|
|
cp++;
|
|
}
|
|
if (cp + 1 < end && *cp)
|
|
printf(".");
|
|
} else {
|
|
if (cp == end) {
|
|
/* FQDN */
|
|
printf(".");
|
|
} else if (cp + 1 == end &&
|
|
*cp == '\0') {
|
|
/* truncated */
|
|
} else {
|
|
/* invalid */
|
|
printf("???");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
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("unknwon qtype");
|
|
comma++;
|
|
break;
|
|
}
|
|
|
|
if ((end - (u_char *)ni) < ICMP6_NIRLEN) {
|
|
/* case of refusion, unkown */
|
|
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));
|
|
pr_icmph(icp, end);
|
|
}
|
|
|
|
if (!(options & F_FLOOD)) {
|
|
(void)putchar('\n');
|
|
if (options & F_VERBOSE)
|
|
pr_exthdrs(mhdr);
|
|
(void)fflush(stdout);
|
|
}
|
|
#undef safeputc
|
|
}
|
|
|
|
void
|
|
pr_exthdrs(mhdr)
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef USE_RFC2292BIS
|
|
void
|
|
pr_ip6opt(void *extbuf)
|
|
{
|
|
struct ip6_hbh *ext;
|
|
int currentlen;
|
|
u_int8_t type;
|
|
size_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 (%d bytes)\n", ext->ip6h_nxt,
|
|
ext->ip6h_len, 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",
|
|
(unsigned int)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 %u\n", type, len);
|
|
break;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
#else /* !USE_RFC2292BIS */
|
|
/* ARGSUSED */
|
|
void
|
|
pr_ip6opt(void *extbuf)
|
|
{
|
|
putchar('\n');
|
|
return;
|
|
}
|
|
#endif /* USE_RFC2292BIS */
|
|
|
|
#ifdef USE_RFC2292BIS
|
|
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]<NULL>\n", i);
|
|
else
|
|
printf(" [%d]%s\n", i,
|
|
inet_ntop(AF_INET6, in6,
|
|
ntopbuf, sizeof(ntopbuf)));
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
#else /* !USE_RFC2292BIS */
|
|
/* ARGSUSED */
|
|
void
|
|
pr_rthdr(void *extbuf)
|
|
{
|
|
putchar('\n');
|
|
return;
|
|
}
|
|
#endif /* USE_RFC2292BIS */
|
|
|
|
|
|
void
|
|
pr_nodeaddr(ni, nilen)
|
|
struct icmp6_nodeinfo *ni; /* ni->qtype must be NODEADDR */
|
|
int nilen;
|
|
{
|
|
struct in6_addr *ia6 = (struct in6_addr *)(ni + 1);
|
|
char ntop_buf[INET6_ADDRSTRLEN];
|
|
|
|
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_ALL)
|
|
(void)printf(" truncated");
|
|
}
|
|
putchar('\n');
|
|
if (nilen <= 0)
|
|
printf(" no address\n");
|
|
for (; nilen > 0; nilen -= sizeof(*ia6), ia6 += 1) {
|
|
printf(" %s\n",
|
|
inet_ntop(AF_INET6, ia6, ntop_buf, sizeof(ntop_buf)));
|
|
}
|
|
}
|
|
|
|
int
|
|
get_hoplim(mhdr)
|
|
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 &&
|
|
cm->cmsg_type == IPV6_HOPLIMIT &&
|
|
cm->cmsg_len == CMSG_LEN(sizeof(int)))
|
|
return(*(int *)CMSG_DATA(cm));
|
|
}
|
|
|
|
return(-1);
|
|
}
|
|
|
|
struct in6_pktinfo *
|
|
get_rcvpktinfo(mhdr)
|
|
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 &&
|
|
cm->cmsg_type == IPV6_PKTINFO &&
|
|
cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo)))
|
|
return((struct in6_pktinfo *)CMSG_DATA(cm));
|
|
}
|
|
|
|
return(NULL);
|
|
}
|
|
|
|
/*
|
|
* tvsub --
|
|
* Subtract 2 timeval structs: out = out - in. Out is assumed to
|
|
* be >= in.
|
|
*/
|
|
void
|
|
tvsub(out, in)
|
|
register struct timeval *out, *in;
|
|
{
|
|
if ((out->tv_usec -= in->tv_usec) < 0) {
|
|
--out->tv_sec;
|
|
out->tv_usec += 1000000;
|
|
}
|
|
out->tv_sec -= in->tv_sec;
|
|
}
|
|
|
|
/*
|
|
* oninfo --
|
|
* SIGINFO handler.
|
|
*/
|
|
/* ARGSUSED */
|
|
void
|
|
oninfo(notused)
|
|
int notused;
|
|
{
|
|
summary();
|
|
}
|
|
|
|
/*
|
|
* onint --
|
|
* SIGINT handler.
|
|
*/
|
|
/* ARGSUSED */
|
|
void
|
|
onint(notused)
|
|
int notused;
|
|
{
|
|
summary();
|
|
|
|
(void)signal(SIGINT, SIG_DFL);
|
|
(void)kill(getpid(), SIGINT);
|
|
|
|
/* NOTREACHED */
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* summary --
|
|
* Print out statistics.
|
|
*/
|
|
void
|
|
summary()
|
|
{
|
|
register int i;
|
|
|
|
(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 printing up packets!");
|
|
else
|
|
(void)printf("%d%% packet loss",
|
|
(int) (((ntransmitted - nreceived) * 100) /
|
|
ntransmitted));
|
|
}
|
|
(void)putchar('\n');
|
|
if (nreceived && timing) {
|
|
/* Only display average to microseconds */
|
|
i = 1000.0 * tsum / (nreceived + nrepeats);
|
|
(void)printf("round-trip min/avg/max = %g/%g/%g ms\n",
|
|
tmin, ((double)i) / 1000.0, tmax);
|
|
(void)fflush(stdout);
|
|
}
|
|
}
|
|
|
|
#ifdef notdef
|
|
static char *ttab[] = {
|
|
"Echo Reply", /* ip + seq + udata */
|
|
"Dest Unreachable", /* net, host, proto, port, frag, sr + IP */
|
|
"Source Quench", /* IP */
|
|
"Redirect", /* redirect type, gateway, + IP */
|
|
"Echo",
|
|
"Time Exceeded", /* transit, frag reassem + IP */
|
|
"Parameter Problem", /* pointer + IP */
|
|
"Timestamp", /* id + seq + three timestamps */
|
|
"Timestamp Reply", /* " */
|
|
"Info Request", /* id + sq */
|
|
"Info Reply" /* " */
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* pr_icmph --
|
|
* Print a descriptive string about an ICMP header.
|
|
*/
|
|
void
|
|
pr_icmph(icp, end)
|
|
struct icmp6_hdr *icp;
|
|
u_char *end;
|
|
{
|
|
char ntop_buf[INET6_ADDRSTRLEN];
|
|
|
|
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",
|
|
(int)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:
|
|
{
|
|
struct nd_redirect *red = (struct nd_redirect *)icp;
|
|
|
|
(void)printf("Redirect\n");
|
|
(void)printf("Destination: %s",
|
|
inet_ntop(AF_INET6, &red->nd_rd_dst,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
(void)printf("New Target: %s",
|
|
inet_ntop(AF_INET6, &red->nd_rd_target,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
break;
|
|
}
|
|
case ICMP6_NI_QUERY:
|
|
(void)printf("Node Information Query");
|
|
/* XXX ID + Seq + Data */
|
|
break;
|
|
case ICMP6_NI_REPLY:
|
|
(void)printf("Node Information Reply");
|
|
/* XXX ID + Seq + Data */
|
|
break;
|
|
default:
|
|
(void)printf("Bad ICMP type: %d", icp->icmp6_type);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* pr_iph --
|
|
* Print an IP6 header.
|
|
*/
|
|
void
|
|
pr_iph(ip6)
|
|
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, (int)ntohl(flow),
|
|
ntohs(ip6->ip6_plen),
|
|
ip6->ip6_nxt, ip6->ip6_hlim);
|
|
printf("%s->", inet_ntop(AF_INET6, &ip6->ip6_src,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
printf("%s\n", inet_ntop(AF_INET6, &ip6->ip6_dst,
|
|
ntop_buf, sizeof(ntop_buf)));
|
|
}
|
|
|
|
/*
|
|
* pr_addr --
|
|
* Return an ascii host address as a dotted quad and optionally with
|
|
* a hostname.
|
|
*/
|
|
const char *
|
|
pr_addr(addr)
|
|
struct sockaddr_in6 *addr;
|
|
{
|
|
static char buf[MAXHOSTNAMELEN];
|
|
int flag = 0;
|
|
|
|
if ((options & F_HOSTNAME) == 0)
|
|
flag |= NI_NUMERICHOST;
|
|
#ifdef KAME_SCOPEID
|
|
flag |= NI_WITHSCOPEID;
|
|
#endif
|
|
|
|
getnameinfo((struct sockaddr *)addr, addr->sin6_len, buf, sizeof(buf),
|
|
NULL, 0, flag);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
/*
|
|
* pr_retip --
|
|
* Dump some info on a returned (via ICMPv6) IPv6 packet.
|
|
*/
|
|
void
|
|
pr_retip(ip6, end)
|
|
struct ip6_hdr *ip6;
|
|
u_char *end;
|
|
{
|
|
u_char *cp = (u_char *)ip6, nh;
|
|
int hlen;
|
|
|
|
if (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) {
|
|
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 ah *)cp)->ah_len+2) << 2;
|
|
nh = ((struct ah *)cp)->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;
|
|
}
|
|
|
|
void
|
|
fill(bp, patp)
|
|
char *bp, *patp;
|
|
{
|
|
register 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;
|
|
kk <= MAXDATALEN - (8 + sizeof(struct timeval) + 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
|
|
int
|
|
setpolicy(so, policy)
|
|
int so;
|
|
char *policy;
|
|
{
|
|
char *buf;
|
|
|
|
if (policy == NULL)
|
|
return 0; /* ignore */
|
|
|
|
buf = ipsec_set_policy(policy, strlen(policy));
|
|
if (buf == NULL)
|
|
errx(1, ipsec_strerror());
|
|
if (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
|
|
|
|
char *
|
|
nigroup(name)
|
|
char *name;
|
|
{
|
|
char *p;
|
|
MD5_CTX ctxt;
|
|
u_int8_t digest[16];
|
|
char l;
|
|
char hbuf[NI_MAXHOST];
|
|
struct in6_addr in6;
|
|
|
|
p = name;
|
|
while (p && *p && *p != '.')
|
|
p++;
|
|
if (p - name > 63)
|
|
return NULL; /*label too long*/
|
|
l = p - name;
|
|
|
|
/* generate 8 bytes of pseudo-random value. */
|
|
bzero(&ctxt, sizeof(ctxt));
|
|
MD5Init(&ctxt);
|
|
MD5Update(&ctxt, &l, sizeof(l));
|
|
MD5Update(&ctxt, name, p - name);
|
|
MD5Final(digest, &ctxt);
|
|
|
|
bzero(&in6, sizeof(in6));
|
|
in6.s6_addr[0] = 0xff;
|
|
in6.s6_addr[1] = 0x02;
|
|
in6.s6_addr[11] = 0x02;
|
|
bcopy(digest, &in6.s6_addr[12], 4);
|
|
|
|
if (inet_ntop(AF_INET6, &in6, hbuf, sizeof(hbuf)) == NULL)
|
|
return NULL;
|
|
|
|
return strdup(hbuf);
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: ping6 [-dfHnNqvwW"
|
|
#ifdef IPV6_REACHCONF
|
|
"R"
|
|
#endif
|
|
#ifdef IPSEC
|
|
#ifdef IPSEC_POLICY_IPSEC
|
|
"] [-P policy"
|
|
#else
|
|
"AE"
|
|
#endif
|
|
#endif
|
|
"] [-a [aAclsg]] [-b sockbufsiz] [-c count] \n\
|
|
[-I interface] [-i wait] [-l preload] [-p pattern] [-S sourceaddr]\n\
|
|
[-s packetsize] [-h hoplimit] [hops...] host\n");
|
|
exit(1);
|
|
}
|