openssh: update to OpenSSH v8.7p1

Some notable changes, from upstream's release notes:

- sshd(8): Remove support for obsolete "host/port" syntax.
- ssh(1): When prompting whether to record a new ho

openssh: update to OpenSSH v8.7p1

Some notable changes, from upstream's release notes:

- sshd(8): Remove support for obsolete "host/port" syntax.
- ssh(1): When prompting whether to record a new host key, accept the key
fingerprint as a synonym for "yes".
- ssh-keygen(1): when acting as a CA and signing certificates with an RSA
key, default to using the rsa-sha2-512 signature algorithm.
- ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa"
(RSA/SHA1) algorithm from those accepted for certificate signatures.
- ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F
support to provide address-space isolation for token middleware
libraries (including the internal one).
- ssh(1): this release enables UpdateHostkeys by default subject to some
conservative preconditions.
- scp(1): this release changes the behaviour of remote to remote copies
(e.g. "scp host-a:/path host-b:") to transfer through the local host
by default.
- scp(1): experimental support for transfers using the SFTP protocol as
a replacement for the venerable SCP/RCP protocol that it has
traditionally used.

Additional integration work is needed to support FIDO/U2F in the base
system.

Deprecation Notice
------------------

OpenSSH will disable the ssh-rsa signature scheme by default in the
next release.

Reviewed by: imp
MFC after: 1 month
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D29985

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Merge ^/head r357921 through r357930.

Upgrade to OpenSSH 7.9p1.

MFC after: 2 months
Sponsored by: The FreeBSD Foundation

Merge ^/head r294169 through r294598.

MFH @r294567

MFH

Sponsored by: The FreeBSD Foundation

Upgrade to OpenSSH 6.9p1.

Upgrade to OpenSSH 6.8p1.

MFC @ r256071

This is just prior to the bhyve_npt_pmap import so will allow
just the change to be merged for easier debug.

Merge head r233826 through r256722.

Merge head@256284

IFC @256277

Approved by: ken (mentor)

MFC - tracking update.

Upgrade to 6.3p1.

Approved by: re (gjb)

Upgrade to OpenSSH 5.1p1.

I have worked hard to reduce diffs against the vendor branch. One
notable change in that respect is that we no longer prefer DSA over
RSA - the reasons for doing so went a

Upgrade to OpenSSH 5.1p1.

I have worked hard to reduce diffs against the vendor branch. One
notable change in that respect is that we no longer prefer DSA over
RSA - the reasons for doing so went away years ago. This may cause
some surprises, as ssh will warn about unknown host keys even for
hosts whose keys haven't changed.

MFC after: 6 weeks

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Vendor import of OpenSSH 4.4p1.

This commit was generated by cvs2svn to compensate for changes in r162852,
which included commits to RCS files with non-trunk default branches.

Vendor import of OpenSSH 3.8p1.

This commit was generated by cvs2svn to compensate for changes in r126274,
which included commits to RCS files with non-trunk default branches.

Vendor import of OpenSSH 3.7.1p2.

This commit was generated by cvs2svn to compensate for changes in r124208,
which included commits to RCS files with non-trunk default branches.

Vendor import of OpenSSH 3.1

This commit was generated by cvs2svn to compensate for changes in r92555,
which included commits to RCS files with non-trunk default branches.

Say "hi" to the latest in the OpenSSH series, version 2.9!

Happy birthday to: rwatson

This commit was generated by cvs2svn to compensate for changes in r76259,
which included commits to RCS files with non-trunk default branches.