OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R

Reviewed by: George Wilson <[email protected]>
Reviewed by: Prakash Surya <[email protected]>
Reviewed by: Saso Kiselkov <[email protected]>
Reviewed by: Richard Lowe <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
Ported by: Tony Hutter <[email protected]>

OpenZFS-issue: https://www.illumos.org/issues/4185
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/45818ee

Porting Notes:
This code is ported on top of the Illumos Crypto Framework code:

    https://github.com/zfsonlinux/zfs/pull/4329/commits/b5e030c8dbb9cd393d313571dee4756fbba8c22d

The list of porting changes includes:

- Copied module/icp/include/sha2/sha2.h directly from illumos

- Removed from module/icp/algs/sha2/sha2.c:
	#pragma inline(SHA256Init, SHA384Init, SHA512Init)

- Added 'ctx' to lib/libzfs/libzfs_sendrecv.c:zio_checksum_SHA256() since
  it now takes in an extra parameter.

- Added CTASSERT() to assert.h from for module/zfs/edonr_zfs.c

- Added skein & edonr to libicp/Makefile.am

- Added sha512.S.  It was generated from sha512-x86_64.pl in Illumos.

- Updated ztest.c with new fletcher_4_*() args; used NULL for new CTX argument.

- In icp/algs/edonr/edonr_byteorder.h, Removed the #if defined(__linux) section
  to not #include the non-existant endian.h.

- In skein_test.c, renane NULL to 0 in "no test vector" array entries to get
  around a compiler warning.

- Fixup test files:
	- Rename <sys/varargs.h> -> <varargs.h>, <strings.h> -> <string.h>,
	- Remove <note.h> and define NOTE() as NOP.
	- Define u_longlong_t
	- Rename "#!/usr/bin/ksh" -> "#!/bin/ksh -p"
	- Rename NULL to 0 in "no test vector" array entries to get around a
	  compiler warning.
	- Remove "for isa in $($ISAINFO); do" stuff
	- Add/update Makefiles
	- Add some userspace headers like stdio.h/stdlib.h in places of
	  sys/types.h.

- EXPORT_SYMBOL *_Init/*_Update/*_Final... routines in ICP modules.

- Update scripts/zfs2zol-patch.sed

- include <sys/sha2.h> in sha2_impl.h

- Add sha2.h to include/sys/Makefile.am

- Add skein and edonr dirs to icp Makefile

- Add new checksums to zpool_get.cfg

- Move checksum switch block from zfs_secpolicy_setprop() to
  zfs_check_settable()

- Fix -Wuninitialized error in edonr_byteorder.h on PPC

- Fix stack frame size errors on ARM32
  	- Don't unroll loops in Skein on 32-bit to save stack space
  	- Add memory barriers in sha2.c on 32-bit to save stack space

- Add filetest_001_pos.ksh checksum sanity test

- Add option to write psudorandom data in file_write utility

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/libicp/Makefile.am b/lib/libicp/Makefile.am
index 41457fd52..0852a583a 100644
--- a/lib/libicp/Makefile.am
+++ b/lib/libicp/Makefile.am
@@ -20,7 +20,8 @@ ASM_SOURCES_AS = \
 	asm-x86_64/aes/aes_intel.S \
 	asm-x86_64/modes/gcm_intel.S \
 	asm-x86_64/sha1/sha1-x86_64.S \
-	asm-x86_64/sha2/sha256_impl.S
+	asm-x86_64/sha2/sha256_impl.S \
+	asm-x86_64/sha2/sha512_impl.S
 endif
 
 if TARGET_ASM_I386
@@ -46,6 +47,7 @@ KERNEL_C = \
 	api/kcf_mac.c \
 	algs/aes/aes_impl.c \
 	algs/aes/aes_modes.c \
+	algs/edonr/edonr.c \
 	algs/modes/modes.c \
 	algs/modes/cbc.c \
 	algs/modes/gcm.c \
@@ -54,10 +56,15 @@ KERNEL_C = \
 	algs/modes/ecb.c \
 	algs/sha1/sha1.c \
 	algs/sha2/sha2.c \
+	algs/skein/skein.c \
+	algs/skein/skein_block.c \
+	algs/skein/skein_iv.c \
 	illumos-crypto.c \
 	io/aes.c \
+	io/edonr_mod.c \
 	io/sha1_mod.c \
 	io/sha2_mod.c \
+	io/skein_mod.c \
 	os/modhash.c \
 	os/modconf.c \
 	core/kcf_sched.c \