sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Consistently use C99 fixed-width types in the in-kernel crypto code.

Reviewed by: markj
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D27061

rijndael (AES): Avoid leaking sensitive data on kernel stack

Noticed this investigating Fortuna. Remove useless duplicate stack copies
of sensitive contents when possible, or if not possible, be sure to zero
them out when we're finished.

Approved by: secteam (gordon)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D16935

Fix gcc build: preserve const qualifier when casting input values.

Noticed by: bz@
Submitted by: dim@

Constify the AES code and propagate to consumers. This allows us to
update the Fortuna code to use SHAd-256 as defined in FS&K.

Approved by: so (self)

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

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

integrate rijndael-alg-fst.h into rijndael.h.

rijndael-alg-fst.[ch]:
- redo updating.

rijndael-api-fst.[ch]:
- switch to use new low level rijndael api.
- stop using u8, u16 and u32.
- space cleanup.

Tested by: gbde(8) and phk's test program

- revert to old rijndael code. new rijndael code broke gbde.
- since aes-xcbc-mac and aes-ctr require functions in new
rijndael code, aes-xcbc-mac and aes-ctr are disabled for now.

Fix alignment problem on 64 bit arch.
I only tested if it doesn't break anything on i368. Since I
have no 64 bit machine, I cannot test it, actually.

Reported by: jmallett

simplify and update rijndael code.

Obtained from: KAME

one more opossite conditiion.

Reported by: "lg" <zevlg@yandex.ru>

condition of padLen check was opposite.

Reported by: "lg" <zevlg@yandex.ru>
Reviewed by: Lev Walkin <vlm@netli.com>

Use __FBSDID().

Don't panic when we can just return an error code.

Fixed AES encryption algorithm bug

PR: kern/38465
Obtained from: Ramana Yarlagadda <ramana.yarlagadda@analog.com>

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

Initial import of AES algorithm code (aka Rijndael) from KAME.