Author: tuexen
Date: Tue Jul 16 12:57:59 2019
New Revision: 350028
URL: https://svnweb.freebsd.org/changeset/base/350028
Log:
Add support for ICMPv6 messages indicating a parameter problem related
to an unrecognized next header.
MFC after: 2 weeks
Modified:
head/usr.sbin/traceroute6/traceroute6.8
head/usr.sbin/traceroute6/traceroute6.c
Modified: head/usr.sbin/traceroute6/traceroute6.8
==============================================================================
--- head/usr.sbin/traceroute6/traceroute6.8 Tue Jul 16 12:38:17 2019
(r350027)
+++ head/usr.sbin/traceroute6/traceroute6.8 Tue Jul 16 12:57:59 2019
(r350028)
@@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 2, 2018
+.Dd July 16, 2019
.Dt TRACEROUTE6 8
.Os
.\"
@@ -172,6 +172,8 @@ Destination Unreachable - Administratively Prohibited.
Destination Unreachable - Not a Neighbour.
.It !A
Destination Unreachable - Address Unreachable.
+.It !H
+Parameter Problem - Unrecognized Next Header Type.
.It !\&
This is printed if the hop limit is <= 1 on a port unreachable message.
This means that the packet got to the destination,
Modified: head/usr.sbin/traceroute6/traceroute6.c
==============================================================================
--- head/usr.sbin/traceroute6/traceroute6.c Tue Jul 16 12:38:17 2019
(r350027)
+++ head/usr.sbin/traceroute6/traceroute6.c Tue Jul 16 12:57:59 2019
(r350028)
@@ -972,6 +972,10 @@ main(int argc, char *argv[])
++got_there;
break;
}
+ } else if (type == ICMP6_PARAM_PROB &&
+ code == ICMP6_PARAMPROB_NEXTHEADER)
{
+ printf(" !H");
+ ++got_there;
} else if (type == ICMP6_ECHO_REPLY) {
if (rcvhlim >= 0 &&
rcvhlim <= 1)
@@ -1345,7 +1349,9 @@ packet_ok(struct msghdr *mhdr, int cc, int seq, u_char
*code = icp->icmp6_code;
if ((*type == ICMP6_TIME_EXCEEDED &&
*code == ICMP6_TIME_EXCEED_TRANSIT) ||
- (*type == ICMP6_DST_UNREACH)) {
+ (*type == ICMP6_DST_UNREACH) ||
+ (*type == ICMP6_PARAM_PROB &&
+ *code == ICMP6_PARAMPROB_NEXTHEADER)) {
struct ip6_hdr *hip;
struct icmp6_hdr *icmp;
struct sctp_init_chunk *init;
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