Commit graph

837 commits

Author SHA1 Message Date
Ed Maste
e833378cf9 OpenSSL: update to 3.0.12
OpenSSL 3.0.12 addresses:

 * Fix incorrect key and IV resizing issues when calling
   EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or EVP_CipherInit_ex2()
   with OSSL_PARAM parameters that alter the key or IV length
   ([CVE-2023-5363]).

Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit ad991e4c142ebabad7aef488ad97b189ecabb270)
(cherry picked from commit 575878a533823aa3e5bab715928d9cdffbc4dcbc)
2023-10-25 16:20:31 -04:00
Andrew Turner
5b413daf3a libcrypto: Copy the arm64 header when building asm
It may be needed when it's updated so is best to keep in sync with the
assembly files.

Reviewed by:	emaste
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D41938

(cherry picked from commit c97a82d4a4a0288ed2a456f4ce41d57483724f17)
2023-10-25 14:32:49 -04:00
Pierre Pronchery
bbecb0ff6c OpenSSL: update to 3.0.11
OpenSSL 3.0.11 addresses:

    POLY1305 MAC implementation corrupts XMM registers on Windows (CVE-2023-4807)

Relnotes:	Yes
Pull request:	https://github.com/freebsd/freebsd-src/pull/852
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 6f1af0d7d2af54b339b5212434cd6d4fda628d80)
2023-10-12 14:46:11 -04:00
Pierre Pronchery
ab64f100ca libcrypto: complete the support for the 0.9.8 API
When importing OpenSSL 3 in base, some but not all source files
implementing the deprecated 0.9.8 API were imported. With this change,
it becomes possible again to compile software targeting this API.

PR:		272220
Fixes:		b077aed33b ("Merge OpenSSL 3.0.9")
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/851

(cherry picked from commit b15b39521644ebffdcc091bd283ed410b0ae9274)
2023-09-24 09:17:43 -04:00
Pierre Pronchery
abd9da9363 libcrypto: fix the FIPS provider on amd64
This corrects the list of source files required for the FIPS provider.

To test:

```
INSTALL PASSED
enter AES-128-CBC encryption password:
Verifying - enter AES-128-CBC encryption password:
U2FsdGVkX1+MGm7LbZou29UWU+KAyBX/PxF5T1pO9VM=
```

Reviewed by:	emaste
Fixes:		b077aed33b ("Merge OpenSSL 3.0.9")
Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/837
Differential Revision: https://reviews.freebsd.org/D41720

(cherry picked from commit 8f37b3a142f2f7197896cd283c44c7e4fb64aaf3)
2023-09-22 15:06:35 -04:00
Pierre Pronchery
fd4b13acd9 libcrypto: link engines and the legacy provider to libcrypto
OpenSSL's legacy provider module and engines need to link to
libcrypto.so, as it provides some of the actual implementations of
legacy routines.

This is a little tricky due to build order issues.  Introduce a small
hack (LIBCRYPTO_WITHOUT_SUBDIRS) that builds libcrypto.so in its usual
early phase without any OpenSSL provider modules or engines.  This is
intended to restore the test suite; a future change should remove the
hack and replace it with a better approach.

PR:		254853, 273528
Discussed with:	Folks at EuroBSDCon in Coimbra
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 1a18383a52bc373e316d224cef1298debf6f7e25)
2023-09-19 11:01:55 -04:00
John Baldwin
bf5069fb6a libcrypto: Switch back to the generated assembly in sys/crypto/openssl
Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D41569

(cherry picked from commit 47d997021fbc7b662e9507deec1897d514d1224c)
2023-09-08 13:55:44 -07:00
John Baldwin
ef81451d11 libcrypto: Add buildasm and cleanasm targets
These targets generate all the assembly files in sys/crypto/openssl.

Reviewed by:	markj, emaste (earlier version)
Differential Revision:	https://reviews.freebsd.org/D41590

(cherry picked from commit 73653b72af65e294dcfedc43a8ea09b2137d72ed)
2023-09-08 13:55:44 -07:00
John Baldwin
14dc723496 libcrypto: Refactor Makefile.asm so it can be run outside of buildenv
Currently Makefile.asm relies on the current buildenv to set CFLAGS
for i386.  The current approach also leaves various temporary *.s
files around in the current directory.  To make this a bit better:

- Instead of using CFLAGS from buildenv for i386, define the actual
  flags the perl scripts need: -DOPENSSL_IA32_SSE2 to enable SSE2.

- Change i386 to have the perl scripts write to /dev/stdout to avoid
  creating temporaries.  Previously i386 was generating the temporary
  files in the OpenSSL contrib src.

- Cleanup temporary *.s files in the all target after generating the
  real *.S files for architectures which need them.

- Remove a duplicate rule for aes-armv4.S.

Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D41589

(cherry picked from commit c0fe6b9d7506d6ce6f9ec3688ee0cc5656a8707e)
2023-09-08 13:55:44 -07:00
John Baldwin
a3f973f2ea Makefile.asm: Simplify variable expansions in generated headers
The :R:S expressions removed the .pl extension only to add it back
again, so just trim them to using :T alone.

Reviewed by:	Pierre Pronchery <pierre@freebsdfoundation.org>, markj, emaste
Differential Revision:	https://reviews.freebsd.org/D41588

(cherry picked from commit 7406b6f9761c35eb53f91f54d1a687d96d638907)
2023-09-08 13:55:44 -07:00
Kyle Evans
e710972446 caroot: regenerate the root bundle with OpenSSL 3
No functional change intended.

Approved by:	re (kib)

(cherry picked from commit 8ed0ecf8024d10e9cd21f5880723a6cec4fd4ae6)
2023-09-05 09:55:09 -05:00
Kyle Evans
5829e12051 caroot: update the root bundle
Summary:
- Six (6) new roots
- Four (4) distrusted roots

Note that this was intentionally generated with OpenSSL 1.1.1 to avoid
mixing updates and non-functional changes -- there will be some churn
with OpenSSL 3.  The next commit will update the current batch of
trusted certs with the format OpenSSL 3 produces, which I've tested
against OpenSSL 1.1.1 to be sure that that doesn't hurt us in older
branches.

Approved by:	re (kib)

(cherry picked from commit 65fd80909e196c8be2ce5e948775e9cbda2ef069)
2023-09-05 09:55:02 -05:00
Kyle Evans
7c52963832 caroot: drop the VERSION tag from already-processed certs
An update is imminent; drop these now to make it easier to audit the
results.

Approved by:	re (kib)

(cherry picked from commit 3f84d4b0fe1445bca5f3b6a70fc5641b88c31217)
2023-09-05 09:54:55 -05:00
Kyle Evans
aa2dc175c0 caroot: drop VERSION tags from certs
With this change, we'll drop the "with $FreeBSD$" lines from trusted/
certs in the next update. untrusted/ will need to be done manually, but
I'll likely just do them all manually, commit, then run the script and
commit any legitimate updates after confirming the output matches what
I did manually.

Reported by:	imp
Reviewed by:	imp
Approved by:	re (kib)

(cherry picked from commit bbc8585ef557be36b3fda75e3a41d725aedb1c1e)
2023-09-05 09:54:44 -05:00
John Baldwin
80e9ea426c Makefile.asm: Drop mention of $FreeBSD$ from instructions. 2023-08-22 14:48:40 -07:00
John Baldwin
3250c9d527 libcrypto: Update assembly build glue for x86 for OpenSSL 3.0.
Notably, define AES_ASM which is required for any AES acceleration
(OpenSSL 1.0 gated all AES acceleration on OPENSSL_CPUID_OBJ instead).
Enabling this exposed that new assembly files added in OpenSSL 3.0
needed to be included in the build (aes-x86-64.S and aes-586.S).  Both
of these files supplant both aes_core.c and aes_cbc.c.  The last file
had to be moved out of the MI SRCS line for aes and into each ASM_*
for non-x86.

As part of this I audited the generated configdata.pm for amd64, i386,
and aarch64 and found the following additional discrepecancies that are
fixed here as well:

- Enabled BSAES_ASM on amd64 which requires bsase-x86_64.S

- Enabled WHIRLPOOL_ASM on amd64 (asm sources already built)

- Enabled CMLL_ASM on amd64 and i386 (asm sources already built)

aarch64 had no discreprecancies in configdata.pm, and no *.pl asm
generators were missing for aarch64 in Makefile.asm.  I did not check
powerpc or armv7, but for armv7 all of the asm generators seem to be
present in Makefile.asm.

Reported by:	gallatin (AES-GCM using plain software on amd64)
Reviewed by:	gallatin, ngie, emaste
Differential Revision:	https://reviews.freebsd.org/D41539
2023-08-21 21:02:42 -07:00
John Baldwin
74d73bb743 libcrypto: Generate new files added in OpenSSL 3.0.
Reviewed by:	gallatin, ngie, emaste
Differential Revision:	https://reviews.freebsd.org/D41538
2023-08-21 21:02:29 -07:00
John Baldwin
f3cac6c020 libcrypto: Add new assembly files added in OpenSSL 3.0.
This only affects amd64 and i386, but in particular includes wrappers
for AES encryption/decryption that gate all of the accelerated AES.

Reviewed by:	gallatin, ngie, emaste
Differential Revision:	https://reviews.freebsd.org/D41537
2023-08-21 21:02:12 -07:00
John Baldwin
7a56f5af71 libcrypto: Don't embed $FreeBSD$ in generated assembly files
Reviewed by:	gallatin, ngie, emaste
Differential Revision:	https://reviews.freebsd.org/D41536
2023-08-21 21:01:48 -07:00
Ed Maste
57a3b81785 libcrypto: add rsa_depr.c to the build
It provides the RSA_generate_key function, which is deprecated as of
3.0 but is used by various ports.

Reviewed by:	kbowling
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41506
2023-08-18 16:15:48 -04:00
Ed Maste
e5e6a86535 libcrypto: add err_all_legacy.c to the build
It provides the ERR_load_*_strings routines, which are deprecated as of
3.0 but are used by various ports.

PR:		272580
Reviewed by:	kbowling
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41505
2023-08-18 14:56:22 -04:00
Warner Losh
d0b2dbfa0e Remove $FreeBSD$: one-line sh pattern
Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
2023-08-16 11:55:03 -06:00
Warner Losh
1d386b48a5 Remove $FreeBSD$: one-line .c pattern
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
2023-08-16 11:54:42 -06:00
Warner Losh
2a63c3be15 Remove $FreeBSD$: one-line .c comment pattern
Remove /^/[*/]\s*\$FreeBSD\$.*\n/
2023-08-16 11:54:29 -06:00
Warner Losh
b3e7694832 Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
2023-08-16 11:54:16 -06:00
Pierre Pronchery
aa79573457 OpenSSL: update to 3.0.10
OpenSSL 3.0.10 addresses:
- CVE-2023-3817
- CVE-2023-3446
- CVE-2023-2975

(Note that the vendor branch commit incorrectly referenced 3.0.9.)

Relnotes:	Yes
Pull request:	https://github.com/freebsd/freebsd-src/pull/808
Sponsored by:	The FreeBSD Foundation
2023-08-10 12:07:32 -04:00
Doug Rabson
1d7ffb373c pkgbase: reorganise caroot and openssl packages
This splits out the certctl utility into a new certctl package and the
openssl libs into an openssl-lib package.

PR:		272816
Reviewed by:	manu
Differential Revision: https://reviews.freebsd.org/D41321
2023-08-05 09:30:35 +01:00
Pierre Pronchery
1c42ed54bf libcrypto: add missing symbols to the FIPS provider
The fips.so provider module exposing FIPS-validated algorithms was still
missing a number of symbols.

PR:		272454
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D41018
2023-07-20 15:05:12 -04:00
Kristof Provost
ebd508a0b2 openssl: include d2i_KeyParams() and d2i_KeyParams_bio()
These functions are new, and some ports (e.g.opensc) expect to have them
available. Add the file they're defined in to the build, and add them
to Version.map.

PR:		270076
Reviewed by:	markj, emaste, pierre
Fixes:	b077aed33b ("Merge OpenSSL 3.0.9")
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D40914
2023-07-09 15:18:21 +02:00
Pierre Pronchery
544deacc90 libcrypto: group definitions for libcrypto and fips
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. This
change makes sure the FIPS module matches build instructions used for
libcrypto.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-05 16:00:54 -04:00
Pierre Pronchery
4a3cc17e31 libcrypto: expand the common Makefile for providers
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. This
change adds mandatory source files to every provider.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-05 16:00:54 -04:00
Pierre Pronchery
7a991ecd1a libcrypto: add missing symbols to the fips provider
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. One
such provider, "fips", ships with OpenSSL 3 directly, and groups
algorithms that can be FIPS 140-2 validated.

The import of OpenSSL 3.0.9 was building this provider incorrectly,
missing symbols required for proper operation.

In addition, without the change in OpenSSL's crypto/bn/bn_const.c, the
FIPS module fails loading: `Undefined symbol "ossl_bignum_modp_1536_p"`.
This change is consistent with crypto/bn/bn_dh.c though.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-05 16:00:54 -04:00
Pierre Pronchery
87e08018b1 libcrypto: add missing symbols to the legacy provider
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. One
such provider, "legacy", ships with OpenSSL 3 directly, and groups
obsoleted algorithms that can still optionally be used anyway.

The import of OpenSSL 3.0.9 was building this provider incorrectly,
missing symbols required for proper operation.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-05 16:00:53 -04:00
Mark Johnston
8e7046ff29 libcrypto: Revert recent changes to fix legacy and fips providers
They break the !amd64 builds due to an underspecified include path and
will be re-applied once that's fixed.

Reported by:	Ronald Klop <ronald-lists@klop.ws>
2023-07-04 16:38:26 -04:00
Pierre Pronchery
c4b7fe91fc libcrypto: group definitions for libcrypto and fips
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. This
change makes sure the FIPS module matches build instructions used for
libcrypto.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-04 15:05:01 -04:00
Pierre Pronchery
0b27be500a libcrypto: expand the common Makefile for providers
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. This
change adds mandatory source files to every provider.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-04 15:04:56 -04:00
Pierre Pronchery
0102ee0d59 libcrypto: add missing symbols to the fips provider
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. One
such provider, "fips", ships with OpenSSL 3 directly, and groups
algorithms that can be FIPS 140-2 validated.

The import of OpenSSL 3.0.9 was building this provider incorrectly,
missing symbols required for proper operation.

In addition, without the change in OpenSSL's crypto/bn/bn_const.c, the
FIPS module fails loading: `Undefined symbol "ossl_bignum_modp_1536_p"`.
This change is consistent with crypto/bn/bn_dh.c though.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-04 15:04:49 -04:00
Pierre Pronchery
0457eebbe8 libcrypto: add missing symbols to the legacy provider
OpenSSL 3 supports a modular architecture, allowing different providers
to bring specific implementations of cryptographical algorithms. One
such provider, "legacy", ships with OpenSSL 3 directly, and groups
obsoleted algorithms that can still optionally be used anyway.

The import of OpenSSL 3.0.9 was building this provider incorrectly,
missing symbols required for proper operation.

Sponsored by:	The FreeBSD Foundation
Pull Request:	https://github.com/freebsd/freebsd-src/pull/787
2023-07-04 15:04:04 -04:00
Kyle Evans
ee0aa1ce12 caroot: add new certs
Based on dates, these were likely just missed in the last update... add
them now.

- Twenty (20) new
2023-06-25 18:49:07 -05:00
Ed Maste
9cbc371c8a libcrypto: build nistp* on all little-endian 64-bit targets
libcrypto intends to provide these routines on little-endian 64-bit
targets.  This was previously done by including them in the ASM_aarch64
and ASM_amd64 blocks in the Makefile, but this excluded powerpc64le and
riscv64.

Reported by:	ci.freebsd.org
Reviewed by:	jrtc27
Fixes:		b077aed33b ("Merge OpenSSL 3.0.9")
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D40749
2023-06-25 09:33:55 -04:00
Enji Cooper
6f6446b330 Do not expose architecture specific symbols
The following methods have existed since 1.0.2, however, they are
deprecated and are not available on all architectures.

- EC_GFp_nistp224_method
- EC_GFp_nistp256_method
- EC_GFp_nistp521_method

Do not expose them via libcrypto.

Discussed with:	emaste
2023-06-24 03:13:45 -07:00
Pierre Pronchery
b077aed33b Merge OpenSSL 3.0.9
Migrate to OpenSSL 3.0 in advance of FreeBSD 14.0.  OpenSSL 1.1.1 (the
version we were previously using) will be EOL as of 2023-09-11.

Most of the base system has already been updated for a seamless switch
to OpenSSL 3.0.  For many components we've added
`-DOPENSSL_API_COMPAT=0x10100000L` to CFLAGS to specify the API version,
which avoids deprecation warnings from OpenSSL 3.0.  Changes have also
been made to avoid OpenSSL APIs that were already deprecated in OpenSSL
1.1.1.  The process of updating to contemporary APIs can continue after
this merge.

Additional changes are still required for libarchive and Kerberos-
related libraries or tools; workarounds will immediately follow this
commit.  Fixes are in progress in the upstream projects and will be
incorporated when those are next updated.

There are some performance regressions in benchmarks (certain tests in
`openssl speed`) and in some OpenSSL consumers in ports (e.g.  haproxy).
Investigation will continue for these.

Netflix's testing showed no functional regression and a rather small,
albeit statistically significant, increase in CPU consumption with
OpenSSL 3.0.

Thanks to ngie@ and des@ for updating base system components, to
antoine@ and bofh@ for ports exp-runs and port fixes/workarounds, and to
Netflix and everyone who tested prior to commit or contributed to this
update in other ways.

PR:		271615
PR:		271656 [exp-run]
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
2023-06-23 18:53:36 -04:00
Kyle Evans
f5e5dcdbeb caroot: update the root bundle
Summary:
- Zero (0) newly trusted
- Five (5) modified
- Nine (9) distrusted

MFC after:	3 days
2023-06-14 23:30:19 -05:00
Jung-uk Kim
84ffbd7782 OpenSSL: Merge OpenSSL 1.1.1u 2023-05-30 11:14:28 -04:00
Jung-uk Kim
5b1268252c OpenSSL: Regen manual pages for OpenSSL 1.1.1u 2023-05-30 11:03:10 -04:00
Simon J. Gerraty
d9a4274795 Update/fix Makefile.depend for userland 2023-04-18 17:14:23 -07:00
Ed Maste
4d3fc8b057 ssh: Update to OpenSSH 9.3p1
This release fixes a number of security bugs and has minor new
features and bug fixes.  Security fixes, from the release notes
(https://www.openssh.com/txt/release-9.3):

This release contains fixes for a security problem and a memory
safety problem. The memory safety problem is not believed to be
exploitable, but we report most network-reachable memory faults as
security bugs.

 * ssh-add(1): when adding smartcard keys to ssh-agent(1) with the
   per-hop destination constraints (ssh-add -h ...) added in OpenSSH
   8.9, a logic error prevented the constraints from being
   communicated to the agent. This resulted in the keys being added
   without constraints. The common cases of non-smartcard keys and
   keys without destination constraints are unaffected. This problem
   was reported by Luci Stanescu.

 * ssh(1): Portable OpenSSH provides an implementation of the
   getrrsetbyname(3) function if the standard library does not
   provide it, for use by the VerifyHostKeyDNS feature. A
   specifically crafted DNS response could cause this function to
   perform an out-of-bounds read of adjacent stack data, but this
   condition does not appear to be exploitable beyond denial-of-
   service to the ssh(1) client.

   The getrrsetbyname(3) replacement is only included if the system's
   standard library lacks this function and portable OpenSSH was not
   compiled with the ldns library (--with-ldns). getrrsetbyname(3) is
   only invoked if using VerifyHostKeyDNS to fetch SSHFP records. This
   problem was found by the Coverity static analyzer.

Sponsored by:	The FreeBSD Foundation
2023-03-16 10:29:55 -04:00
Jung-uk Kim
eb9b98fb5a OpenSSL: Regen manual pages for OpenSSL 1.1.1t 2023-02-07 14:01:15 -05:00
Jung-uk Kim
fb31345581 OpenSSL: Merge OpenSSL 1.1.1t 2023-02-07 13:54:16 -05:00
Ed Maste
f374ba41f5 ssh: update to OpenSSH 9.2p1
Release notes are available at https://www.openssh.com/txt/release-9.2

OpenSSH 9.2 contains fixes for two security problems and a memory safety
problem.  The memory safety problem is not believed to be exploitable.
These fixes have already been committed to OpenSSH 9.1 in FreeBSD.

Some other notable items from the release notes:

 * ssh(1): add a new EnableEscapeCommandline ssh_config(5) option that
   controls whether the client-side ~C escape sequence that provides a
   command-line is available. Among other things, the ~C command-line
   could be used to add additional port-forwards at runtime.

 * sshd(8): add support for channel inactivity timeouts via a new
   sshd_config(5) ChannelTimeout directive. This allows channels that
   have not seen traffic in a configurable interval to be
   automatically closed. Different timeouts may be applied to session,
   X11, agent and TCP forwarding channels.

 * sshd(8): add a sshd_config UnusedConnectionTimeout option to
   terminate client connections that have no open channels for a
   length of time. This complements the ChannelTimeout option above.
    
 * sshd(8): add a -V (version) option to sshd like the ssh client has.

 * scp(1), sftp(1): add a -X option to both scp(1) and sftp(1) to
   allow control over some SFTP protocol parameters: the copy buffer
   length and the number of in-flight requests, both of which are used
   during upload/download. Previously these could be controlled in
   sftp(1) only. This makes them available in both SFTP protocol
   clients using the same option character sequence.
    
 * ssh-keyscan(1): allow scanning of complete CIDR address ranges,
   e.g.  "ssh-keyscan 192.168.0.0/24". If a CIDR range is passed, then
   it will be expanded to all possible addresses in the range
   including the all-0s and all-1s addresses. bz#976

 * ssh(1): support dynamic remote port forwarding in escape
   command-line's -R processing. bz#3499

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2023-02-06 16:54:56 -05:00