Bring in LBL traceroute, which has the '-g' option. This is a bugfixed and
modified version of Leres' latest work. No FreeBSD changes have been spammed.
This commit is contained in:
Paul Traina
parent
072b9b24e3
commit
bb45826d08
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=14612
@ -4,5 +4,6 @@ PROG= traceroute
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MAN8= traceroute.8
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BINOWN= root
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BINMODE=4555
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CFLAGS+=-DHAVE_BZERO=1 -DHAVE_SETLINEBUF=1
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.include <bsd.prog.mk>
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@ -1,126 +1,29 @@
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Tue Dec 27 06:24:24 PST 1988
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@(#) $Header: README,v 1.6 95/08/27 16:58:04 leres Exp $ (LBL)
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TRACEROUTE 1.2
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Lawrence Berkeley National Laboratory
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Network Research Group
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traceroute@ee.lbl.gov
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ftp://ftp.ee.lbl.gov/traceroute-*.tar.Z
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Traceroute is a system administrators utility to trace the route
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ip packets from the current system take in getting to some
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destination system. See the comments at the front of the
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program for a description of its use.
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This program
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a) can only be run by root (it uses raw ip sockets).
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b) REQUIRES A KERNEL MOD to the raw ip output code to run.
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If you want to hack on your kernel, my modified version of the
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routine rip_output (in file /sys/netinet/raw_ip.c) is attached.
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This code may or may not resemble the code in your kernel.
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It may offer you a place to start but I make no promises.
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If you do hack your kernel, remember to test everything that uses
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raw ip sockets (e.g., ping and egpup/gated) & make sure they still
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work. I wish you the best of luck and you're on your own.
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If your system has the ttl bug mentioned in the source, you
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might want to fix it while you're in the kernel. (This bug
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appears in all releases of BSD up to but not including 4.3tahoe.
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If your version of netinet/ip_icmp.c is any earlier than 7.3
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(April, '87), it has the bug.) The fix is just to add the line
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ip->ip_ttl = MAXTTL;
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after the line
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ip->ip_src = t;
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(or anywhere before the call to icmp_send) in routine icmp_reflect.
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If you're running this on a pre-4.3bsd system (e.g., Sun 3.x,
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Ultrix) that strips ip headers from icmp messages, add -DARCHAIC
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to CFLAGS in the Makefile. Also note that rip_output contains
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a conditional for a 4.2/4.3 change in the location of a raw
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socket's protocol number. I've checked this under 4.3 & Sun OS
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3.5 but you should double-check your system to make sure the
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appropriate branch of the #if is taken (check the line that
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assigned to ip->ip_p in your system's original rip_output).
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This program uses raw ip sockets and must be run as root (or installed
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setuid to root).
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A couple of awk programs to massage the traceroute output are
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included. "mean.awk" and "median.awk" compute the mean and median
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time to each hop, respectively. I've found that something like
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included. "mean.awk" and "median.awk" compute the mean and median time
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to each hop, respectively. I've found that something like
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traceroute -q 7 foo.somewhere >t
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awk -f median.awk t | graph
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traceroute -q 7 foo.somewhere >t
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awk -f median.awk t | graph
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can give you a quick picture of the bad spots on a long
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path (median is usually a better noise filter than mean).
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can give you a quick picture of the bad spots on a long path (median is
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usually a better noise filter than mean).
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Enjoy.
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- Van Jacobson (van@helios.ee.lbl.gov)
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-------------------- rip_output from /sys/netinet/raw_ip.c
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rip_output(m, so)
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register struct mbuf *m;
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struct socket *so;
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{
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register struct ip *ip;
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int error;
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struct rawcb *rp = sotorawcb(so);
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struct sockaddr_in *sin;
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#if BSD>=43
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short proto = rp->rcb_proto.sp_protocol;
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#else
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short proto = so->so_proto->pr_protocol;
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#endif
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/*
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* if the protocol is IPPROTO_RAW, the user handed us a
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* complete IP packet. Otherwise, allocate an mbuf for a
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* header and fill it in as needed.
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*/
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if (proto != IPPROTO_RAW) {
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/*
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* Calculate data length and get an mbuf
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* for IP header.
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*/
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int len = 0;
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struct mbuf *m0;
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for (m0 = m; m; m = m->m_next)
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len += m->m_len;
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m = m_get(M_DONTWAIT, MT_HEADER);
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if (m == 0) {
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m = m0;
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error = ENOBUFS;
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goto bad;
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}
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m->m_off = MMAXOFF - sizeof(struct ip);
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m->m_len = sizeof(struct ip);
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m->m_next = m0;
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ip = mtod(m, struct ip *);
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ip->ip_tos = 0;
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ip->ip_off = 0;
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ip->ip_p = proto;
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ip->ip_len = sizeof(struct ip) + len;
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ip->ip_ttl = MAXTTL;
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} else
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ip = mtod(m, struct ip *);
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if (rp->rcb_flags & RAW_LADDR) {
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sin = (struct sockaddr_in *)&rp->rcb_laddr;
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if (sin->sin_family != AF_INET) {
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error = EAFNOSUPPORT;
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goto bad;
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}
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ip->ip_src.s_addr = sin->sin_addr.s_addr;
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} else
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ip->ip_src.s_addr = 0;
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ip->ip_dst = ((struct sockaddr_in *)&rp->rcb_faddr)->sin_addr;
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#if BSD>=43
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return (ip_output(m, rp->rcb_options, &rp->rcb_route,
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(so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST));
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#else
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return (ip_output(m, (struct mbuf *)0, &rp->rcb_route,
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(so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST));
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#endif
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bad:
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m_freem(m);
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return (error);
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}
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Problems, bugs, questions, desirable enhancements, source code
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contributions, etc., should be sent to the email address
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"traceroute@ee.lbl.gov".
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43
usr.sbin/traceroute/gnuc.h
Normal file
43
usr.sbin/traceroute/gnuc.h
Normal file
@ -0,0 +1,43 @@
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/* @(#) $Header: gnuc.h,v 1.3 95/10/09 02:47:01 leres Exp $ (LBL) */
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/* Define __P() macro, if necessary */
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#ifndef __P
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#if __STDC__
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#define __P(protos) protos
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#else
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#define __P(protos) ()
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#endif
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#endif
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/* inline foo */
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#ifdef __GNUC__
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#define inline __inline
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#else
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#define inline
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#endif
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/*
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* Handle new and old "dead" routine prototypes
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*
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* For example:
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*
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* __dead void foo(void) __attribute__((volatile));
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*
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*/
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#ifdef __GNUC__
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#ifndef __dead
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#define __dead volatile
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#endif
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
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#ifndef __attribute__
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#define __attribute__(args)
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#endif
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#endif
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#else
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#ifndef __dead
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#define __dead
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#endif
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#ifndef __attribute__
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#define __attribute__(args)
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#endif
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#endif
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@ -34,7 +34,7 @@
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.\"
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.\" @(#)traceroute.8 8.1 (Berkeley) 6/6/93
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.\"
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.Dd June 6, 1993
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.Dd March 7, 1996
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.Dt TRACEROUTE 8
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.Os BSD 4.3
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.Sh NAME
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@ -42,6 +42,7 @@
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.Nd print the route packets take to network host
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.Sh SYNOPSIS
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.Nm traceroute
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.Op Fl g Ar gateway
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.Op Fl m Ar max_ttl
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.Op Fl n
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.Op Fl p Ar port
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@ -51,6 +52,7 @@
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.Op Fl s Ar src_addr
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.Ek
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.Op Fl t Ar tos
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.Op Fl v
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.Op Fl w Ar waittime
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.Ar host
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.Op Ar packetsize
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@ -73,6 +75,10 @@ name.
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.Pp
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Other options are:
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.Bl -tag -width Ds
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.It Fl g Ar gateway
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Add a loose-source-route IP option onto the ICMP packet to direct traffic
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to traverse the specified gateway.
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Multiple gateway options may be specified on the command line.
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.It Fl m Ar max_ttl
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Set the max time-to-live (max number of hops) used in outgoing probe
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packets. The default is 30 hops (the same default used for
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@ -331,6 +337,6 @@ C. Philip Wood, Tim Seaver and Ken Adelman.
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.Xr ping 8
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.Sh HISTORY
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The
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.Nm
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command
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.Bt
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.Nm traceroute
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command first appeard in 4.4
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.Tn BSD
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@ -1,48 +1,7 @@
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/*-
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* Copyright (c) 1990, 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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* Van Jacobson.
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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) 1990, 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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static char sccsid[] = "@(#)traceroute.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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static char *rcsid =
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"@(#)$Header: traceroute.c,v 1.27 95/10/18 00:17:06 leres Exp $ (LBL)";
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#endif
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/*
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* traceroute host - trace the route ip packets follow going to "host".
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@ -211,43 +170,51 @@ static char sccsid[] = "@(#)traceroute.c 8.1 (Berkeley) 6/6/93";
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* back to yourself. Unfortunately, SO many gateways botch source
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* routing, the thing is almost worthless. Maybe one day...
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*
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* -- Van Jacobson (van@helios.ee.lbl.gov)
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* -- Van Jacobson (van@ee.lbl.gov)
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* Tue Dec 20 03:50:13 PST 1988
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*/
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
|
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#include <sys/time.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>
|
||||
#include <netinet/ip_icmp.h>
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#include <netinet/udp.h>
|
||||
|
||||
#include <arpa/inet.h>
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#include <ctype.h>
|
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#include <unistd.h>
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||||
#include <errno.h>
|
||||
#include <netdb.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
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#include <stdlib.h>
|
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#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "gnuc.h"
|
||||
#ifdef HAVE_OS_PROTO_H
|
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#include "os-proto.h"
|
||||
#endif
|
||||
|
||||
#define MAXPACKET 65535 /* max ip packet size */
|
||||
|
||||
#ifndef MAXHOSTNAMELEN
|
||||
#define MAXHOSTNAMELEN 64
|
||||
#endif
|
||||
|
||||
#ifndef FD_SET
|
||||
#define NFDBITS (8*sizeof(fd_set))
|
||||
#define FD_SETSIZE NFDBITS
|
||||
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
|
||||
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
|
||||
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
|
||||
#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
|
||||
#if !defined(HAVE_BZERO) && !defined(bzero)
|
||||
#define bzero(s, n) memset(s, 0, n)
|
||||
#define bcopy(s, d, n) memcpy(d, s, n)
|
||||
#endif
|
||||
|
||||
#if !defined(HAVE_SETLINEBUF) && !defined(setlinebuf)
|
||||
#define setlinebuf(f) setvbuf(f, NULL, _IOLBF, 0)
|
||||
#endif
|
||||
|
||||
#define Fprintf (void)fprintf
|
||||
@ -268,144 +235,201 @@ struct opacket {
|
||||
u_char packet[512]; /* last inbound (icmp) packet */
|
||||
struct opacket *outpacket; /* last output (udp) packet */
|
||||
|
||||
int wait_for_reply __P((int, struct sockaddr_in *, struct timeval *));
|
||||
void send_probe __P((int, int));
|
||||
double deltaT __P((struct timeval *, struct timeval *));
|
||||
int packet_ok __P((u_char *, int, struct sockaddr_in *, int));
|
||||
void print __P((u_char *, int, struct sockaddr_in *));
|
||||
void tvsub __P((struct timeval *, struct timeval *));
|
||||
char *inetname __P((struct in_addr));
|
||||
void usage __P(());
|
||||
|
||||
int s; /* receive (icmp) socket file descriptor */
|
||||
int sndsock; /* send (udp) socket file descriptor */
|
||||
struct timezone tz; /* leftover */
|
||||
|
||||
struct sockaddr whereto; /* Who to try to reach */
|
||||
int datalen; /* How much data */
|
||||
|
||||
char *source = 0;
|
||||
char *hostname;
|
||||
char hnamebuf[MAXHOSTNAMELEN];
|
||||
|
||||
int nprobes = 3;
|
||||
int max_ttl = 30;
|
||||
u_short ident;
|
||||
u_short port = 32768+666; /* start udp dest port # for probe packets */
|
||||
|
||||
int options; /* socket options */
|
||||
int verbose;
|
||||
int waittime = 5; /* time to wait for response (in seconds) */
|
||||
int nflag; /* print addresses numerically */
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
char usage[] =
|
||||
"Usage: traceroute [-dnrv] [-w wait] [-m max_ttl] [-p port#] [-q nqueries] [-t tos] [-s src_addr] [-g gateway] host [data size]\n";
|
||||
|
||||
/* Forwards */
|
||||
double deltaT(struct timeval *, struct timeval *);
|
||||
int main(int, char **);
|
||||
int wait_for_reply(int, struct sockaddr_in *, struct timeval *);
|
||||
void send_probe(int, int, struct timeval *);
|
||||
char *pr_type(u_char);
|
||||
int packet_ok(u_char *, int, struct sockaddr_in *, int);
|
||||
void print(u_char *, int, struct sockaddr_in *);
|
||||
void tvsub(struct timeval *, struct timeval *);
|
||||
char *inetname(struct in_addr);
|
||||
|
||||
double
|
||||
deltaT(struct timeval *t1p, struct timeval *t2p)
|
||||
{
|
||||
extern char *optarg;
|
||||
extern int optind;
|
||||
struct hostent *hp;
|
||||
register double dt;
|
||||
|
||||
dt = (double)(t2p->tv_sec - t1p->tv_sec) * 1000.0 +
|
||||
(double)(t2p->tv_usec - t1p->tv_usec) / 1000.0;
|
||||
return (dt);
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
struct sockaddr_in from;
|
||||
char **av = argv;
|
||||
struct sockaddr_in *to = (struct sockaddr_in *) &whereto;
|
||||
int on = 1;
|
||||
struct protoent *pe;
|
||||
struct sockaddr_in from, *to;
|
||||
int ch, i, on, probe, seq, tos, ttl;
|
||||
int ttl, probe, i;
|
||||
int seq = 0;
|
||||
int tos = 0;
|
||||
struct hostent *hp;
|
||||
int lsrr = 0;
|
||||
u_long gw;
|
||||
u_char optlist[MAX_IPOPTLEN], *oix;
|
||||
|
||||
on = 1;
|
||||
seq = tos = 0;
|
||||
to = (struct sockaddr_in *)&whereto;
|
||||
while ((ch = getopt(argc, argv, "dm:np:q:rs:t:w:v")) != EOF)
|
||||
switch(ch) {
|
||||
case 'd':
|
||||
options |= SO_DEBUG;
|
||||
break;
|
||||
case 'm':
|
||||
max_ttl = atoi(optarg);
|
||||
if (max_ttl <= 1) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: max ttl must be >1.\n");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
case 'n':
|
||||
nflag++;
|
||||
break;
|
||||
case 'p':
|
||||
port = atoi(optarg);
|
||||
if (port < 1) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: port must be >0.\n");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
case 'q':
|
||||
nprobes = atoi(optarg);
|
||||
if (nprobes < 1) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: nprobes must be >0.\n");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
case 'r':
|
||||
options |= SO_DONTROUTE;
|
||||
break;
|
||||
case 's':
|
||||
/*
|
||||
* set the ip source address of the outbound
|
||||
* probe (e.g., on a multi-homed host).
|
||||
*/
|
||||
source = optarg;
|
||||
break;
|
||||
case 't':
|
||||
tos = atoi(optarg);
|
||||
if (tos < 0 || tos > 255) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: tos must be 0 to 255.\n");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
case 'v':
|
||||
verbose++;
|
||||
break;
|
||||
case 'w':
|
||||
waittime = atoi(optarg);
|
||||
if (waittime <= 1) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: wait must be >1 sec.\n");
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (argc < 1)
|
||||
usage();
|
||||
oix = optlist;
|
||||
bzero(optlist, sizeof(optlist));
|
||||
|
||||
argc--, av++;
|
||||
while (argc && *av[0] == '-') {
|
||||
while (*++av[0])
|
||||
switch (*av[0]) {
|
||||
case 'd':
|
||||
options |= SO_DEBUG;
|
||||
break;
|
||||
case 'g':
|
||||
argc--, av++;
|
||||
if ((lsrr+1) >= ((MAX_IPOPTLEN-IPOPT_MINOFF)/sizeof(u_long))) {
|
||||
Fprintf(stderr,"No more than %d gateways\n",
|
||||
(u_int)((MAX_IPOPTLEN-IPOPT_MINOFF)/sizeof(u_long))-1);
|
||||
exit(1);
|
||||
}
|
||||
if (lsrr == 0) {
|
||||
*oix++ = IPOPT_LSRR;
|
||||
oix++; /* Fill in total length later */
|
||||
*oix++ = IPOPT_MINOFF; /* Pointer to LSRR addresses */
|
||||
}
|
||||
lsrr++;
|
||||
if (isdigit(*av[0])) {
|
||||
gw = inet_addr(*av);
|
||||
if (gw) {
|
||||
bcopy(&gw, oix, sizeof(u_long));
|
||||
} else {
|
||||
Fprintf(stderr, "Unknown host %s\n",av[0]);
|
||||
exit(1);
|
||||
}
|
||||
} else {
|
||||
hp = gethostbyname(av[0]);
|
||||
if (hp) {
|
||||
bcopy(hp->h_addr, oix, sizeof(u_long));
|
||||
} else {
|
||||
Fprintf(stderr, "Unknown host %s\n",av[0]);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
oix += sizeof(u_long);
|
||||
goto nextarg;
|
||||
case 'm':
|
||||
argc--, av++;
|
||||
max_ttl = atoi(av[0]);
|
||||
if (max_ttl <= 1) {
|
||||
Fprintf(stderr, "max ttl must be >1\n");
|
||||
exit(1);
|
||||
}
|
||||
goto nextarg;
|
||||
case 'n':
|
||||
nflag++;
|
||||
break;
|
||||
case 'p':
|
||||
argc--, av++;
|
||||
port = atoi(av[0]);
|
||||
if (port < 1) {
|
||||
Fprintf(stderr, "port must be >0\n");
|
||||
exit(1);
|
||||
}
|
||||
goto nextarg;
|
||||
case 'q':
|
||||
argc--, av++;
|
||||
nprobes = atoi(av[0]);
|
||||
if (nprobes < 1) {
|
||||
Fprintf(stderr, "nprobes must be >0\n");
|
||||
exit(1);
|
||||
}
|
||||
goto nextarg;
|
||||
case 'r':
|
||||
options |= SO_DONTROUTE;
|
||||
break;
|
||||
case 's':
|
||||
/*
|
||||
* set the ip source address of the outbound
|
||||
* probe (e.g., on a multi-homed host).
|
||||
*/
|
||||
argc--, av++;
|
||||
source = av[0];
|
||||
goto nextarg;
|
||||
case 't':
|
||||
argc--, av++;
|
||||
tos = atoi(av[0]);
|
||||
if (tos < 0 || tos > 255) {
|
||||
Fprintf(stderr, "tos must be 0 to 255\n");
|
||||
exit(1);
|
||||
}
|
||||
goto nextarg;
|
||||
case 'v':
|
||||
verbose++;
|
||||
break;
|
||||
case 'w':
|
||||
argc--, av++;
|
||||
waittime = atoi(av[0]);
|
||||
if (waittime <= 1) {
|
||||
Fprintf(stderr, "wait must be >1 sec\n");
|
||||
exit(1);
|
||||
}
|
||||
goto nextarg;
|
||||
default:
|
||||
Printf(usage);
|
||||
exit(1);
|
||||
}
|
||||
nextarg:
|
||||
argc--, av++;
|
||||
}
|
||||
if (argc != 1) {
|
||||
Printf(usage);
|
||||
exit(1);
|
||||
}
|
||||
setlinebuf (stdout);
|
||||
|
||||
(void) bzero((char *)&whereto, sizeof(struct sockaddr));
|
||||
bzero((char *)&whereto, sizeof(struct sockaddr));
|
||||
to->sin_family = AF_INET;
|
||||
to->sin_addr.s_addr = inet_addr(*argv);
|
||||
if (to->sin_addr.s_addr != -1)
|
||||
hostname = *argv;
|
||||
else {
|
||||
hp = gethostbyname(*argv);
|
||||
to->sin_addr.s_addr = inet_addr(av[0]);
|
||||
if (to->sin_addr.s_addr != -1) {
|
||||
(void) strcpy(hnamebuf, av[0]);
|
||||
hostname = hnamebuf;
|
||||
} else {
|
||||
hp = gethostbyname(av[0]);
|
||||
if (hp) {
|
||||
to->sin_family = hp->h_addrtype;
|
||||
bcopy(hp->h_addr, (caddr_t)&to->sin_addr, hp->h_length);
|
||||
hostname = strdup(hp->h_name);
|
||||
} else {
|
||||
(void)fprintf(stderr,
|
||||
"traceroute: unknown host %s\n", *argv);
|
||||
Printf("%s: unknown host %s\n", argv[0], av[0]);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
if (*++argv)
|
||||
datalen = atoi(*argv);
|
||||
|
||||
if (argc >= 2)
|
||||
datalen = atoi(av[1]);
|
||||
if (datalen < 0 || datalen >= MAXPACKET - sizeof(struct opacket)) {
|
||||
Fprintf(stderr,
|
||||
"traceroute: packet size must be 0 <= s < %ld.\n",
|
||||
MAXPACKET - sizeof(struct opacket));
|
||||
Fprintf(stderr, "traceroute: packet size must be 0 <= s < %d\n",
|
||||
(u_int)(MAXPACKET - sizeof(struct opacket)));
|
||||
exit(1);
|
||||
}
|
||||
datalen += sizeof(struct opacket);
|
||||
@ -414,11 +438,11 @@ main(argc, argv)
|
||||
perror("traceroute: malloc");
|
||||
exit(1);
|
||||
}
|
||||
(void) bzero((char *)outpacket, datalen);
|
||||
bzero((char *)outpacket, datalen);
|
||||
outpacket->ip.ip_dst = to->sin_addr;
|
||||
outpacket->ip.ip_tos = tos;
|
||||
outpacket->ip.ip_v = IPVERSION;
|
||||
outpacket->ip.ip_id = 0;
|
||||
outpacket->ip.ip_v = IPVERSION;
|
||||
outpacket->ip.ip_hl = sizeof(struct ip) >> 2;
|
||||
|
||||
ident = (getpid() & 0xffff) | 0x8000;
|
||||
|
||||
@ -441,6 +465,26 @@ main(argc, argv)
|
||||
perror("traceroute: raw socket");
|
||||
exit(5);
|
||||
}
|
||||
|
||||
if (lsrr > 0) {
|
||||
lsrr++;
|
||||
optlist[IPOPT_OLEN]=IPOPT_MINOFF-1+(lsrr*sizeof(u_long));
|
||||
bcopy((caddr_t)&to->sin_addr, oix, sizeof(u_long));
|
||||
oix += sizeof(u_long);
|
||||
while ((oix - optlist)&3) oix++; /* Pad to an even boundry */
|
||||
|
||||
if ((pe = getprotobyname("ip")) == NULL) {
|
||||
perror("traceroute: unknown protocol ip\n");
|
||||
exit(10);
|
||||
}
|
||||
#ifdef IP_OPTIONS
|
||||
if ((setsockopt(sndsock, pe->p_proto, IP_OPTIONS, optlist, oix-optlist)) < 0) {
|
||||
perror("traceroute: lsrr options");
|
||||
exit(5);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef SO_SNDBUF
|
||||
if (setsockopt(sndsock, SOL_SOCKET, SO_SNDBUF, (char *)&datalen,
|
||||
sizeof(datalen)) < 0) {
|
||||
@ -463,7 +507,7 @@ main(argc, argv)
|
||||
(char *)&on, sizeof(on));
|
||||
|
||||
if (source) {
|
||||
(void) bzero((char *)&from, sizeof(struct sockaddr));
|
||||
bzero((char *)&from, sizeof(struct sockaddr));
|
||||
from.sin_family = AF_INET;
|
||||
from.sin_addr.s_addr = inet_addr(source);
|
||||
if (from.sin_addr.s_addr == -1) {
|
||||
@ -499,8 +543,8 @@ main(argc, argv)
|
||||
struct ip *ip;
|
||||
|
||||
(void) gettimeofday(&t1, &tz);
|
||||
send_probe(++seq, ttl);
|
||||
while (cc = wait_for_reply(s, &from, &t1)) {
|
||||
send_probe(++seq, ttl, &t1);
|
||||
while ((cc = wait_for_reply(s, &from, &t1)) != 0) {
|
||||
(void) gettimeofday(&t2, &tz);
|
||||
if ((i = packet_ok(packet, cc, &from, seq))) {
|
||||
if (from.sin_addr.s_addr != lastaddr) {
|
||||
@ -549,13 +593,11 @@ main(argc, argv)
|
||||
if (got_there || unreachable >= nprobes-1)
|
||||
exit(0);
|
||||
}
|
||||
exit(0);
|
||||
}
|
||||
|
||||
int
|
||||
wait_for_reply(sock, from, sent)
|
||||
int sock;
|
||||
struct sockaddr_in *from;
|
||||
struct timeval *sent;
|
||||
wait_for_reply(int sock, struct sockaddr_in *from, struct timeval *sent)
|
||||
{
|
||||
fd_set fds;
|
||||
struct timeval now, wait;
|
||||
@ -566,13 +608,13 @@ wait_for_reply(sock, from, sent)
|
||||
FD_SET(sock, &fds);
|
||||
gettimeofday(&now, NULL);
|
||||
wait.tv_sec = (sent->tv_sec + waittime) - now.tv_sec;
|
||||
wait.tv_usec = sent->tv_usec - now.tv_usec;
|
||||
wait.tv_usec = sent->tv_usec - now.tv_usec;
|
||||
if (wait.tv_usec < 0) {
|
||||
wait.tv_usec += 1000000;
|
||||
wait.tv_sec--;
|
||||
wait.tv_usec += 1000000;
|
||||
wait.tv_sec--;
|
||||
}
|
||||
if (wait.tv_sec < 0)
|
||||
wait.tv_sec = wait.tv_usec = 0;
|
||||
wait.tv_sec = wait.tv_usec = 0;
|
||||
|
||||
if (select(sock+1, &fds, (fd_set *)0, (fd_set *)0, &wait) > 0)
|
||||
cc=recvfrom(s, (char *)packet, sizeof(packet), 0,
|
||||
@ -583,8 +625,7 @@ wait_for_reply(sock, from, sent)
|
||||
|
||||
|
||||
void
|
||||
send_probe(seq, ttl)
|
||||
int seq, ttl;
|
||||
send_probe(int seq, int ttl, struct timeval *tp)
|
||||
{
|
||||
struct opacket *op = outpacket;
|
||||
struct ip *ip = &op->ip;
|
||||
@ -592,12 +633,9 @@ send_probe(seq, ttl)
|
||||
int i;
|
||||
|
||||
ip->ip_off = 0;
|
||||
ip->ip_hl = sizeof(*ip) >> 2;
|
||||
ip->ip_p = IPPROTO_UDP;
|
||||
ip->ip_len = datalen;
|
||||
ip->ip_ttl = ttl;
|
||||
ip->ip_v = IPVERSION;
|
||||
ip->ip_id = htons(ident+seq);
|
||||
|
||||
up->uh_sport = htons(ident);
|
||||
up->uh_dport = htons(port+seq);
|
||||
@ -606,7 +644,7 @@ send_probe(seq, ttl)
|
||||
|
||||
op->seq = seq;
|
||||
op->ttl = ttl;
|
||||
(void) gettimeofday(&op->tv, &tz);
|
||||
op->tv = *tp;
|
||||
|
||||
i = sendto(sndsock, (char *)outpacket, datalen, 0, &whereto,
|
||||
sizeof(struct sockaddr));
|
||||
@ -619,25 +657,11 @@ send_probe(seq, ttl)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
double
|
||||
deltaT(t1p, t2p)
|
||||
struct timeval *t1p, *t2p;
|
||||
{
|
||||
register double dt;
|
||||
|
||||
dt = (double)(t2p->tv_sec - t1p->tv_sec) * 1000.0 +
|
||||
(double)(t2p->tv_usec - t1p->tv_usec) / 1000.0;
|
||||
return (dt);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Convert an ICMP "type" field to a printable string.
|
||||
*/
|
||||
char *
|
||||
pr_type(t)
|
||||
u_char t;
|
||||
pr_type(u_char t)
|
||||
{
|
||||
static char *ttab[] = {
|
||||
"Echo Reply", "ICMP 1", "ICMP 2", "Dest Unreachable",
|
||||
@ -655,11 +679,7 @@ pr_type(t)
|
||||
|
||||
|
||||
int
|
||||
packet_ok(buf, cc, from, seq)
|
||||
u_char *buf;
|
||||
int cc;
|
||||
struct sockaddr_in *from;
|
||||
int seq;
|
||||
packet_ok(u_char *buf, int cc, struct sockaddr_in *from, int seq)
|
||||
{
|
||||
register struct icmp *icp;
|
||||
u_char type, code;
|
||||
@ -712,10 +732,7 @@ packet_ok(buf, cc, from, seq)
|
||||
|
||||
|
||||
void
|
||||
print(buf, cc, from)
|
||||
u_char *buf;
|
||||
int cc;
|
||||
struct sockaddr_in *from;
|
||||
print(u_char *buf, int cc, struct sockaddr_in *from)
|
||||
{
|
||||
struct ip *ip;
|
||||
int hlen;
|
||||
@ -739,10 +756,7 @@ print(buf, cc, from)
|
||||
/*
|
||||
* Checksum routine for Internet Protocol family headers (C Version)
|
||||
*/
|
||||
u_short
|
||||
in_cksum(addr, len)
|
||||
u_short *addr;
|
||||
int len;
|
||||
in_cksum(u_short *addr, int len)
|
||||
{
|
||||
register int nleft = len;
|
||||
register u_short *w = addr;
|
||||
@ -779,8 +793,7 @@ in_cksum(addr, len)
|
||||
* Out is assumed to be >= in.
|
||||
*/
|
||||
void
|
||||
tvsub(out, in)
|
||||
register struct timeval *out, *in;
|
||||
tvsub(register struct timeval *out, register struct timeval *in)
|
||||
{
|
||||
if ((out->tv_usec -= in->tv_usec) < 0) {
|
||||
out->tv_sec--;
|
||||
@ -796,8 +809,7 @@ tvsub(out, in)
|
||||
* numeric value, otherwise try for symbolic name.
|
||||
*/
|
||||
char *
|
||||
inetname(in)
|
||||
struct in_addr in;
|
||||
inetname(struct in_addr in)
|
||||
{
|
||||
register char *cp;
|
||||
static char line[50];
|
||||
@ -808,7 +820,7 @@ inetname(in)
|
||||
if (first && !nflag) {
|
||||
first = 0;
|
||||
if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
|
||||
(cp = index(domain, '.')))
|
||||
(cp = strchr(domain, '.')))
|
||||
(void) strcpy(domain, cp + 1);
|
||||
else
|
||||
domain[0] = 0;
|
||||
@ -817,7 +829,7 @@ inetname(in)
|
||||
if (!nflag && in.s_addr != INADDR_ANY) {
|
||||
hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET);
|
||||
if (hp) {
|
||||
if ((cp = index(hp->h_name, '.')) &&
|
||||
if ((cp = strchr(hp->h_name, '.')) &&
|
||||
!strcmp(cp + 1, domain))
|
||||
*cp = 0;
|
||||
cp = hp->h_name;
|
||||
@ -833,12 +845,3 @@ inetname(in)
|
||||
}
|
||||
return (line);
|
||||
}
|
||||
|
||||
void
|
||||
usage()
|
||||
{
|
||||
(void)fprintf(stderr,
|
||||
"usage: traceroute [-dnrv] [-m max_ttl] [-p port#] [-q nqueries]\n\t\
|
||||
[-s src_addr] [-t tos] [-w wait] host [data size]\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user