When using SCTP for sending probe packets, use INIT chunks for payloads
larger than or equal to 32 bytes. For smaller probe packets, keep using
SHUTDOWN-ACK chunks, possibly bundled with a PAD chunk.

When using SCTP for sending probe packets, use INIT chunks for payloads
larger than or equal to 32 bytes. For smaller probe packets, keep using
SHUTDOWN-ACK chunks, possibly bundled with a PAD chunk.
Packets with INIT chunks more likely pass through firewalls. Therefore,
use them when possible.

MFC after: 1 week

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Merge ^/head r325999 through r326131.

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Merge ^/head r323559 through r325504.

MFhead@r324148

Fix reporting of probing size. This bug was introduced in r324119.

MFC after: 4 weeks

Add SCTP and TCP as protocols for sending probe packets.

MFC after: 4 weeks

* Update function definitions.
* Ensure that the datalen always describes the length after the IPv6
header consistently, not matter which protocol us used for probes..
* Document that the default l

* Update function definitions.
* Ensure that the datalen always describes the length after the IPv6
header consistently, not matter which protocol us used for probes..
* Document that the default length is 20, not 12.
* Don't send inormation in probe packets which is not needed or
even checked when the responses are processed.
* Address CID 978587.

This is mainly a cleanup preparing the addition of SCTP and TCP
as possible probe packet protocols.

MFC after: 4 weeks

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Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge ^/head r308227 through r308490.

Fix an infinite loop at an non-responding hop when other echo replies
are kept arriving in the waittime time window.

Submitted by: Denny Page
PR: 210286
MFC after: 3 days

traceroute6(8): use NULL instead of zero for initializing a pointer.

IFC @ r238370

Merge head r233826 through r236168.

MFC

Add -a and -A option to the usage.

MFC after: 1 week

Remove the advertising clause from UCB copyrighted files in usr.sbin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Sync: merge r216133 through r216338 from ^/head.

traceroute6(8): make WARNS=3 clean

Merge from head

MFC r196475:
- Add AS lookup functionality to traceroute6(8) as well.
- Support for IPv6 transport for AS lookup.
- Introduce $RA_SERVER to set whois server.
- Support for 4 byte ASN.
- ANSIfy f

MFC r196475:
- Add AS lookup functionality to traceroute6(8) as well.
- Support for IPv6 transport for AS lookup.
- Introduce $RA_SERVER to set whois server.
- Support for 4 byte ASN.
- ANSIfy function declaration in as.c.

Approved by: re (kib)

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- MFC from head@196987

- Add AS lookup functionality to traceroute6(8) as well.
- Support for IPv6 transport for AS lookup.
- Introduce $RA_SERVER to set whois server.
- Support for 4 byte ASN.
- ANSIfy function declaratio

- Add AS lookup functionality to traceroute6(8) as well.
- Support for IPv6 transport for AS lookup.
- Introduce $RA_SERVER to set whois server.
- Support for 4 byte ASN.
- ANSIfy function declaration in as.c.

Tested by: IHANet folks.

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Give traceroute6 the ability to traceroute with packets with no
upper layer header (IP PROTO = 59). Useful for testing firewalls.

MFC after: 2 months