Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

setkey(8): NAT-T manual configuration support

This is needed for testing of offload capabilities.

Reviewed by: ae
Discussed with: bz
Sponsored by: NVidia networking
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D40300

setkey(8): ansify parser

Sponsored by: NVidia networking
MFC after: 1 week

ipsec: add support for CHACHA20POLY1305

Based on a patch by ae@.

Reviewed by: gbe (man page), pauamma (man page)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D37180

Refer to AES-CBC as "aes-cbc" rather than "rijndael-cbc" for IPsec.

At this point, AES is the more common name for Rijndael128. setkey(8)
will still accept the old name, and old constants remain for
compatiblity.

Reviewed by: cem, bcr (manpages)
MFC after: 2 weeks
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24964

Remove support for IPsec algorithms deprecated in r348205 and r360202.

Examples of depecrated algorithms in manual pages and sample configs
are updated where relevant. I removed the one example of combining
ESP and AH (vs using a cipher and auth in ESP) as RFC 8221 says this
combination is NOT RECOMMENDED.

Specifically, this removes support for the following ciphers:
- des-cbc
- 3des-cbc
- blowfish-cbc
- cast128-cbc
- des-deriv
- des-32iv
- camellia-cbc

This also removes support for the following authentication algorithms:
- hmac-md5
- keyed-md5
- keyed-sha1
- hmac-ripemd160

Reviewed by: cem, gnn (older verisons)
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24342

Remove the link to libl which only contains a stub function
on yywrap, if the flex is told yywrap is not in use, then this linkage becomes
unnecessary

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.

Add support for keys that include 4 byte SALT values,
including GCM and ICM/CTR modes for AES.

Reviewed by: jmg
MFC after: 1 week
Sponsored by: Rubicon Communications (Netgate)

New AES modes for IPSec, user space components.
Update setkey and libipsec to understand aes-gcm-16 as an
encryption method.

A partial commit of the work in review D2936.

Submitted by: eri
Reviewed by: jmg
MFC after: 2 weeks
Sponsored by: Rubicon Communications (Netgate)

Fix support for the null encryption algorithm which now requires
a key.

Sponsored by: Rubicon Communications (Netgate)

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Cleanup of userland __P use

Commit IPv6 support for FAST_IPSEC to the tree.
This commit includes all remaining changes for the time being including
user space updates.

Submitted by: bz
Approved by: re

Integrate the Camellia Block Cipher. For more information see RFC 4132
and its bibliography.

Submitted by: Tomoyuki Okazaki <okazaki at kick dot gr dot jp>
MFC after: 1 month

Fixed mispellings of '\0' as NULL.

Initial import of RFC 2385 (TCP-MD5) digest support.

This is the second of two commits; bring in the userland support to finish.

Teach libipsec and setkey about the tcp-md5 class of security associations,
thus allowing administrators to add per-host keys to the SADB for use by
the tcpsignature_compute() function.

Document that a single SPI must be used until such time as the code which
adds support to the SPD to specify flows for tcp-md5 treatment is suitable
for production.

Sponsored by: sentex.net

- do hexdump on send. set length field properly
- check for encryption/authentication key together with algorithm.
- warned if a deprecated encryption algorithm (that includes "simple")
is specified.
- changed the syntax how to define a policy of a ICMPv6 type and/or a
code, like spdadd ::/0 ::/0 icmp6 134,0 -P out none;
- random cleanup in parser.
- use yyfatal, or return -1 after yyerror.
- deal with strdup() failure.
- permit scope notation in policy string (-P
esp/tunnel/foo%scope-bar%scope/use)
- simplify /prefix and [port].
- g/c some unused symbols.

Obtained from: KAME

- support AES counter mode for ESP.
- use size_t as return type of schedlen(), as there's no error
check needed.
- clear key schedule buffer before freeing.

Obtained from: KAME

- support AES XCBC MAC for AH
- correct SADB_X_AALG_RIPEMD160HMAC to 8

Obtained from: KAME

- RIPEMD160 support
- pass size arg to ah->result (avoid assuming result buffer size)

Obtained from: KAME

Sync with recent KAME.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.

TODO:
- The definitions of SADB_* in sys/net/pfkeyv2.h are still different
from RFC2407/IANA assignment because of binary compatibility
issue. It should be fixed under 5-CURRENT.
- ip6po_m member of struct ip6_pktopts is no longer used. But, it
is still there because of binary compatibility issue. It should
be removed under 5-CURRENT.

Reviewed by: itojun
Obtained from: KAME
MFC after: 3 weeks

Allow ``ip4'' as an ``upperspec'' value, and update the man
page with *all* the permissible values.

This should really be spelt ipencap (as /etc/protocols does),
but a precedent has already been set by the ipproto array in
setkey.c.

It would be nice if /etc/protocols was parsed for the upperspec
field, but I don't do yacc/lex...

This change allows policies that only encrypt the encapsulated
packets passing between the endpoints of a gif tunnel. Setting
such a policy means that you can still talk directly (and
unencrypted) between the public IP numbers with (say) ssh.

MFC after: 1 week

synchronize with latest kame tree.

behavior change: policy syntax was changed. you may need to update your
setkey(8) configuration files.

Change IPv6 scoped addr format again based on recent standard discussion.
Sorry for the flapping, but no change will be done for 4.0 anymore.
Official standard will be published around April or later.
If different format would be adopted at that time, then support for
the new format will be added to the succeeding FreeBSD 4.x.

Approved by: jkh

libipsec and IPsec related apps. (and some KAME related man pages)

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project