LUKS and GELI support.

* Makefile.util.def (libgrubkern.a): Add grub-core/lib/crypto.c,
	grub-core/disk/luks.c, grub-core/disk/geli.c,
	grub-core/disk/cryptodisk.c, grub-core/disk/AFSplitter.c,
	grub-core/lib/pbkdf2.c, grub-core/commands/extcmd.c,
	grub-core/lib/arg.c.
	(libgrubmods.a): Remove gcrypts cflags and cppflags.
	Remove grub-core/commands/extcmd.c, grub-core/lib/arg.c,
	grub-core/lib/crypto.c, grub-core/lib/libgcrypt-grub/cipher/sha512.c,
	grub-core/lib/libgcrypt-grub/cipher/crc.c and grub-core/lib/pbkdf2.c.
	(grub-bin2h): Add libgcry.a.
	(grub-mkimage): Likewise.
	(grub-mkrelpath): Likewise.
	(grub-script-check): Likewise.
	(grub-editenv): Likewise.
	(grub-mkpasswd-pbkdf2): Likewise.
	(grub-pe2elf): Likewise.
	(grub-fstest): Likewise.
	(grub-mkfont): Likewise.
	(grub-mkdevicemap): Likewise.
	(grub-probe): Likewise.
	(grub-ofpath): Likewise.
	(grub-mklayout): Likewise.
	(example_unit_test): Likewise.
	(grub-menulst2cfg): Likewise.
	* autogen.sh (UTIL_DEFS): Add Makefile.utilgcry.def.
	* grub-core/Makefile.core.def (cryptodisk): New module.
	(luks): Likewise.
	(geli): Likewise.
	* grub-core/disk/AFSplitter.c: New file.
	* grub-core/disk/cryptodisk.c: Likewise.
	* grub-core/disk/geli.c: Likewise.
	* grub-core/disk/luks.c: Likewise.
	* grub-core/kern/emu/getroot.c (get_dm_uuid): New function based on
	grub_util_is_lvm.
	(grub_util_get_dm_abstraction): New function.
	(grub_util_follow_gpart_up): Likewise.
	(grub_util_get_geom_abstraction): Likewise.
	(grub_util_get_dev_abstraction): Use new functions.
	(grub_util_pull_device): Pull GELI and LUKS.
	(grub_util_get_grub_dev): Handle LUKS and GELI.
	* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors): New function.
	(grub_util_biosdisk_open): Use grub_util_get_fd_sectors.
	(follow_geom_up): Removed.
	(grub_util_fd_seek): New function.
	(open_device): Use grub_util_fd_seek.
	(nread): Rename to ..
	(grub_util_fd_read): ... this. All users updated.
	* grub-core/lib/crypto.c (grub_crypto_ecb_decrypt): A better prototype.
	(grub_crypto_cbc_decrypt): Likewise.
	(grub_crypto_hmac_write): Likewise.
	(grub_crypto_hmac_buffer): Likewise.
	(grub_password_get): Extend to util.
	* include/grub/crypto.h (gcry_cipher_spec) [GRUB_UTIL]:
	New member modname.
	(gcry_md_spec) [GRUB_UTIL]: Likewise.
	* include/grub/cryptodisk.h: New file.
	* include/grub/disk.h (grub_disk_dev_id): Rename LUKS to CRYPTODISK.
	* include/grub/emu/getroot.h (grub_dev_abstraction_types): Add
	LUKS and GELI.
	(grub_util_follow_gpart_up): New proto.
	* include/grub/emu/hostdisk.h (grub_util_fd_seek): Likewise.
	(grub_util_fd_read): Likewise.
	(grub_cryptodisk_cheat_mount): Likewise.
	(grub_util_cryptodisk_print_uuid): Likewise.
	(grub_util_get_fd_sectors): Likewise.
	* util/grub-fstest.c (mount_crypt): New var.
	(fstest): Mount crypto if requested.
	(options): New option -C.
	(argp_parser): Parse -C.
	(main): Init and fini gcry.
	* util/grub-install.in: Support cryptodisk install.
	* util/grub-mkconfig.in: Export GRUB_ENABLE_CRYPTODISK.
	* util/grub-mkconfig_lib.in (is_path_readable_by_grub): Support
	cryptodisk.
	(prepare_grub_to_access_device): Likewise.
	* util/grub-mkpasswd-pbkdf2.c (main): Use grub_password_get.
	* util/grub-probe.c (probe_partmap): Support cryptodisk UUID probe.
	(probe_cryptodisk_uuid): New function.
	(probe_abstraction): Likewise.
	(probe): Use new functions.
	* util/import_gcry.py: Create Makefile.utilgcry.def.
	Add modname member.

	Also-By: Michael Gorven <michael@gorven.za.net>

	Also-By: Clemens Fruhwirth <clemens@endorphin.org>

.bzrignore

@@ -160,3 +160,4 @@ widthspec.bin
 widthspec.h
 docs/stamp-1
 docs/version-dev.texi
+Makefile.utilgcry.def

ChangeLog

@@ -1,3 +1,92 @@
+2011-07-07  Vladimir Serbinenko  <phcoder@gmail.com>
+2011-07-07  Michael Gorven  <michael@gorven.za.net>
+2011-07-07  Clemens Fruhwirth <clemens@endorphin.org>
+
+	LUKS and GELI support.
+
+	* Makefile.util.def (libgrubkern.a): Add grub-core/lib/crypto.c,
+	grub-core/disk/luks.c, grub-core/disk/geli.c,
+	grub-core/disk/cryptodisk.c, grub-core/disk/AFSplitter.c,
+	grub-core/lib/pbkdf2.c, grub-core/commands/extcmd.c,
+	grub-core/lib/arg.c.
+	(libgrubmods.a): Remove gcrypts cflags and cppflags.
+	Remove grub-core/commands/extcmd.c, grub-core/lib/arg.c,
+	grub-core/lib/crypto.c, grub-core/lib/libgcrypt-grub/cipher/sha512.c,
+	grub-core/lib/libgcrypt-grub/cipher/crc.c and grub-core/lib/pbkdf2.c.
+	(grub-bin2h): Add libgcry.a.
+	(grub-mkimage): Likewise.
+	(grub-mkrelpath): Likewise.
+	(grub-script-check): Likewise.
+	(grub-editenv): Likewise.
+	(grub-mkpasswd-pbkdf2): Likewise.
+	(grub-pe2elf): Likewise.
+	(grub-fstest): Likewise.
+	(grub-mkfont): Likewise.
+	(grub-mkdevicemap): Likewise.
+	(grub-probe): Likewise.
+	(grub-ofpath): Likewise.
+	(grub-mklayout): Likewise.
+	(example_unit_test): Likewise.
+	(grub-menulst2cfg): Likewise.
+	* autogen.sh (UTIL_DEFS): Add Makefile.utilgcry.def.
+	* grub-core/Makefile.core.def (cryptodisk): New module.
+	(luks): Likewise.
+	(geli): Likewise.
+	* grub-core/disk/AFSplitter.c: New file.
+	* grub-core/disk/cryptodisk.c: Likewise.
+	* grub-core/disk/geli.c: Likewise.
+	* grub-core/disk/luks.c: Likewise.
+	* grub-core/kern/emu/getroot.c (get_dm_uuid): New function based on
+	grub_util_is_lvm.
+	(grub_util_get_dm_abstraction): New function.
+	(grub_util_follow_gpart_up): Likewise.
+	(grub_util_get_geom_abstraction): Likewise.
+	(grub_util_get_dev_abstraction): Use new functions.
+	(grub_util_pull_device): Pull GELI and LUKS.
+	(grub_util_get_grub_dev): Handle LUKS and GELI.
+	* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors): New function.
+	(grub_util_biosdisk_open): Use grub_util_get_fd_sectors.
+	(follow_geom_up): Removed.
+	(grub_util_fd_seek): New function.
+	(open_device): Use grub_util_fd_seek.
+	(nread): Rename to ..
+	(grub_util_fd_read): ... this. All users updated.
+	* grub-core/lib/crypto.c (grub_crypto_ecb_decrypt): A better prototype.
+	(grub_crypto_cbc_decrypt): Likewise.
+	(grub_crypto_hmac_write): Likewise.
+	(grub_crypto_hmac_buffer): Likewise.
+	(grub_password_get): Extend to util.
+	* include/grub/crypto.h (gcry_cipher_spec) [GRUB_UTIL]:
+	New member modname.
+	(gcry_md_spec) [GRUB_UTIL]: Likewise.
+	* include/grub/cryptodisk.h: New file.
+	* include/grub/disk.h (grub_disk_dev_id): Rename LUKS to CRYPTODISK.
+	* include/grub/emu/getroot.h (grub_dev_abstraction_types): Add
+	LUKS and GELI.
+	(grub_util_follow_gpart_up): New proto.
+	* include/grub/emu/hostdisk.h (grub_util_fd_seek): Likewise.
+	(grub_util_fd_read): Likewise.
+	(grub_cryptodisk_cheat_mount): Likewise.
+	(grub_util_cryptodisk_print_uuid): Likewise.
+	(grub_util_get_fd_sectors): Likewise.
+	* util/grub-fstest.c (mount_crypt): New var.
+	(fstest): Mount crypto if requested.
+	(options): New option -C.
+	(argp_parser): Parse -C.
+	(main): Init and fini gcry.
+	* util/grub-install.in: Support cryptodisk install.
+	* util/grub-mkconfig.in: Export GRUB_ENABLE_CRYPTODISK.
+	* util/grub-mkconfig_lib.in (is_path_readable_by_grub): Support
+	cryptodisk.
+	(prepare_grub_to_access_device): Likewise.
+	* util/grub-mkpasswd-pbkdf2.c (main): Use grub_password_get.
+	* util/grub-probe.c (probe_partmap): Support cryptodisk UUID probe.
+	(probe_cryptodisk_uuid): New function.
+	(probe_abstraction): Likewise.
+	(probe): Use new functions.
+	* util/import_gcry.py: Create Makefile.utilgcry.def.
+	Add modname member.
+
 2011-07-07  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Lazy device scanning.

Makefile.util.def

@@ -21,12 +21,18 @@ library = {
   common = grub-core/kern/list.c;
   common = grub-core/kern/misc.c;
   common = grub-core/kern/partition.c;
+  common = grub-core/lib/crypto.c;
+  common = grub-core/disk/luks.c;
+  common = grub-core/disk/geli.c;
+  common = grub-core/disk/cryptodisk.c;
+  common = grub-core/disk/AFSplitter.c;
+  common = grub-core/lib/pbkdf2.c;
+  common = grub-core/commands/extcmd.c;
+  common = grub-core/lib/arg.c;
 };
 
 library = {
   name = libgrubmods.a;
-  cflags = '$(CFLAGS_GCRY)';
-  cppflags = '$(CPPFLAGS_GCRY)';
 
   common_nodist = grub_script.tab.c;
   common_nodist = grub_script.yy.c;
@@ -36,7 +42,6 @@ library = {
 
   common = grub-core/commands/blocklist.c;
   common = grub-core/commands/testload.c;
-  common = grub-core/commands/extcmd.c;
   common = grub-core/commands/ls.c;
   common = grub-core/disk/dmraid_nvidia.c;
   common = grub-core/disk/loopback.c;
@@ -79,15 +84,10 @@ library = {
   common = grub-core/fs/zfs/zfs_lzjb.c;
   common = grub-core/fs/zfs/zfs_sha256.c;
   common = grub-core/fs/zfs/zfs_fletcher.c;
-  common = grub-core/lib/arg.c;
-  common = grub-core/lib/crypto.c;
   common = grub-core/lib/envblk.c;
   common = grub-core/lib/hexdump.c;
-  common = grub-core/lib/libgcrypt-grub/cipher/sha512.c;
-  common = grub-core/lib/libgcrypt-grub/cipher/crc.c;
   common = grub-core/lib/LzFind.c;
   common = grub-core/lib/LzmaEnc.c;
-  common = grub-core/lib/pbkdf2.c;
   common = grub-core/lib/crc.c;
   common = grub-core/normal/datetime.c;
   common = grub-core/normal/misc.c;
@@ -113,6 +113,7 @@ program = {
   name = grub-bin2h;
   common = util/bin2h.c;
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER)';
@@ -128,6 +129,7 @@ program = {
   extra_dist = util/grub-mkimagexx.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBLZMA)';
@@ -142,6 +144,7 @@ program = {
   common = util/grub-mkrelpath.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -154,6 +157,7 @@ program = {
   common = util/grub-script-check.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -166,6 +170,7 @@ program = {
   common = util/grub-editenv.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -178,6 +183,7 @@ program = {
   common = util/grub-mkpasswd-pbkdf2.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -198,6 +204,7 @@ program = {
   common = util/grub-pe2elf.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL)';
@@ -216,6 +223,7 @@ program = {
   cppflags = '$(CPPFLAGS_GCRY)';
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -230,6 +238,7 @@ program = {
   cflags = '$(freetype_cflags)';
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(freetype_libs)';
@@ -250,6 +259,7 @@ program = {
   sparc64_ieee1275 = util/ieee1275/devicemap.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBUTIL) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -262,6 +272,7 @@ program = {
   common = util/grub-probe.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBUTIL) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -279,6 +290,7 @@ program = {
 
   ldadd = libgrubmods.a;
   ldadd = libgrubkern.a;
+  ldadd = libgrubgcry.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBUTIL) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
 
@@ -294,6 +306,7 @@ program = {
   ieee1275 = util/ieee1275/ofpath.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBUTIL) $(LIBGEOM)';
@@ -308,6 +321,7 @@ program = {
   common = util/grub-mklayout.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -619,6 +633,7 @@ program = {
   common = grub-core/tests/lib/test.c;
   cflags = -Wno-format;
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
@@ -632,6 +647,7 @@ program = {
   common = grub-core/lib/i386/pc/vesa_modes_table.c;
 
   ldadd = libgrubmods.a;
+  ldadd = libgrubgcry.a;
   ldadd = libgrubkern.a;
   ldadd = grub-core/gnulib/libgnu.a;
   ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';

autogen.sh

@@ -26,7 +26,7 @@ if [ "x${GRUB_CONTRIB}" != x ]; then
   [ "${GRUB_CONTRIB}" = grub-core/contrib ] || ln -s ../contrib grub-core/contrib
 fi
 
-UTIL_DEFS=Makefile.util.def
+UTIL_DEFS='Makefile.util.def Makefile.utilgcry.def'
 CORE_DEFS='grub-core/Makefile.core.def grub-core/Makefile.gcry.def'
 
 for extra in contrib/*/Makefile.util.def; do

grub-core/Makefile.core.def

@@ -817,6 +817,22 @@ module = {
   common = disk/loopback.c;
 };
 
+module = {
+  name = cryptodisk;
+  common = disk/cryptodisk.c;
+};
+
+module = {
+  name = luks;
+  common = disk/luks.c;
+  common = disk/AFSplitter.c;
+};
+
+module = {
+  name = geli;
+  common = disk/geli.c;
+};
+
 module = {
   name = lvm;
   common = disk/lvm.c;

grub-core/disk/AFSplitter.c

@@ -0,0 +1,89 @@
+/*
+ * AFsplitter - Anti forensic information splitter
+ * Copyright 2004, Clemens Fruhwirth <clemens@endorphin.org>
+ *
+ * AFsplitter diffuses information over a large stripe of data,
+ * therefor supporting secure data destruction.
+ *
+ *  This program is grub_free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the grub_free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the grub_free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <grub/crypto.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+
+gcry_err_code_t AF_merge (const gcry_md_spec_t * hash, grub_uint8_t * src,
+			  grub_uint8_t * dst, grub_size_t blocksize,
+			  grub_size_t blocknumbers);
+
+static void
+diffuse (const gcry_md_spec_t * hash, grub_uint8_t * src,
+	 grub_uint8_t * dst, grub_size_t size)
+{
+  grub_size_t i;
+  grub_uint32_t IV;		/* host byte order independend hash IV */
+
+  grub_size_t fullblocks = size / hash->mdlen;
+  int padding = size % hash->mdlen;
+  grub_uint8_t final[hash->mdlen];
+  grub_uint8_t temp[sizeof (IV) + hash->mdlen];
+
+  /* hash block the whole data set with different IVs to produce
+   * more than just a single data block
+   */
+  for (i = 0; i < fullblocks; i++)
+    {
+      IV = grub_cpu_to_be32 (i);
+      grub_memcpy (temp, &IV, sizeof (IV));
+      grub_memcpy (temp + sizeof (IV), src + hash->mdlen * i, hash->mdlen);
+      grub_crypto_hash (hash, dst + hash->mdlen * i, temp,
+			sizeof (IV) + hash->mdlen);
+    }
+
+  if (padding)
+    {
+      IV = grub_cpu_to_be32 (i);
+      grub_memcpy (temp, &IV, sizeof (IV));
+      grub_memcpy (temp + sizeof (IV), src + hash->mdlen * i, padding);
+      grub_crypto_hash (hash, final, temp, sizeof (IV) + padding);
+      grub_memcpy (dst + hash->mdlen * i, final, padding);
+    }
+}
+
+/**
+ * Merges the splitted master key stored on disk into the original key
+ */
+gcry_err_code_t
+AF_merge (const gcry_md_spec_t * hash, grub_uint8_t * src, grub_uint8_t * dst,
+	  grub_size_t blocksize, grub_size_t blocknumbers)
+{
+  grub_size_t i;
+  grub_uint8_t *bufblock;
+
+  bufblock = grub_zalloc (blocksize);
+  if (bufblock == NULL)
+    return GPG_ERR_OUT_OF_MEMORY;
+
+  grub_memset (bufblock, 0, blocksize);
+  for (i = 0; i < blocknumbers - 1; i++)
+    {
+      grub_crypto_xor (bufblock, src + (blocksize * i), bufblock, blocksize);
+      diffuse (hash, bufblock, bufblock, blocksize);
+    }
+  grub_crypto_xor (dst, src + (i * blocksize), bufblock, blocksize);
+
+  grub_free (bufblock);
+  return GPG_ERR_NO_ERROR;
+}

grub-core/disk/cryptodisk.c

@@ -0,0 +1,884 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2007,2010,2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/cryptodisk.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+#ifdef GRUB_UTIL
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <grub/emu/hostdisk.h>
+#include <unistd.h>
+#include <string.h>
+#endif
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+grub_cryptodisk_dev_t grub_cryptodisk_list;
+
+static const struct grub_arg_option options[] =
+  {
+    {"uuid", 'u', 0, N_("Mount by UUID."), 0, 0},
+    {"all", 'a', 0, N_("Mount all."), 0, 0},
+    {"boot", 'b', 0, N_("Mount all volumes marked as boot."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+/* Our irreducible polynom is x^128+x^7+x^2+x+1. Lowest byte of it is:  */
+#define GF_POLYNOM 0x87
+static inline int GF_PER_SECTOR (const struct grub_cryptodisk *dev)
+{
+  return 1U << (dev->log_sector_size - GRUB_CRYPTODISK_GF_LOG_BYTES);
+}
+
+static grub_cryptodisk_t cryptodisk_list = NULL;
+static grub_uint8_t n = 0;
+
+static void
+gf_mul_x (grub_uint8_t *g)
+{
+  int over = 0, over2 = 0;
+  unsigned j;
+
+  for (j = 0; j < GRUB_CRYPTODISK_GF_BYTES; j++)
+    {
+      over2 = !!(g[j] & 0x80);
+      g[j] <<= 1;
+      g[j] |= over;
+      over = over2;
+    }
+  if (over)
+    g[0] ^= GF_POLYNOM;
+}
+
+
+static void
+gf_mul_x_be (grub_uint8_t *g)
+{
+  int over = 0, over2 = 0;
+  int j;
+
+  for (j = (int) GRUB_CRYPTODISK_GF_BYTES - 1; j >= 0; j--)
+    {
+      over2 = !!(g[j] & 0x80);
+      g[j] <<= 1;
+      g[j] |= over;
+      over = over2;
+    }
+  if (over)
+    g[GRUB_CRYPTODISK_GF_BYTES - 1] ^= GF_POLYNOM;
+}
+
+static void
+gf_mul_be (grub_uint8_t *o, const grub_uint8_t *a, const grub_uint8_t *b)
+{
+  unsigned i;
+  grub_uint8_t t[GRUB_CRYPTODISK_GF_BYTES];
+  grub_memset (o, 0, GRUB_CRYPTODISK_GF_BYTES);
+  grub_memcpy (t, b, GRUB_CRYPTODISK_GF_BYTES);
+  for (i = 0; i < GRUB_CRYPTODISK_GF_SIZE; i++)
+    {
+      if (((a[GRUB_CRYPTODISK_GF_BYTES - i / 8 - 1] >> (i % 8))) & 1)
+	grub_crypto_xor (o, o, t, GRUB_CRYPTODISK_GF_BYTES);
+      gf_mul_x_be (t);
+    }
+}
+
+static gcry_err_code_t
+grub_crypto_pcbc_decrypt (grub_crypto_cipher_handle_t cipher,
+			 void *out, void *in, grub_size_t size,
+			 void *iv)
+{
+  grub_uint8_t *inptr, *outptr, *end;
+  grub_uint8_t ivt[cipher->cipher->blocksize];
+  if (!cipher->cipher->decrypt)
+    return GPG_ERR_NOT_SUPPORTED;
+  if (size % cipher->cipher->blocksize != 0)
+    return GPG_ERR_INV_ARG;
+  end = (grub_uint8_t *) in + size;
+  for (inptr = in, outptr = out; inptr < end;
+       inptr += cipher->cipher->blocksize, outptr += cipher->cipher->blocksize)
+    {
+      grub_memcpy (ivt, inptr, cipher->cipher->blocksize);
+      cipher->cipher->decrypt (cipher->ctx, outptr, inptr);
+      grub_crypto_xor (outptr, outptr, iv, cipher->cipher->blocksize);
+      grub_crypto_xor (iv, ivt, outptr, cipher->cipher->blocksize);
+    }
+  return GPG_ERR_NO_ERROR;
+}
+
+struct lrw_sector
+{
+  grub_uint8_t low[GRUB_CRYPTODISK_GF_BYTES];
+  grub_uint8_t high[GRUB_CRYPTODISK_GF_BYTES];
+  grub_uint8_t low_byte, low_byte_c;
+};
+
+static void
+generate_lrw_sector (struct lrw_sector *sec,
+		     const struct grub_cryptodisk *dev,
+		     const grub_uint8_t *iv)
+{
+  grub_uint8_t idx[GRUB_CRYPTODISK_GF_BYTES];
+  grub_uint16_t c;
+  int j;
+  grub_memcpy (idx, iv, GRUB_CRYPTODISK_GF_BYTES);
+  sec->low_byte = (idx[GRUB_CRYPTODISK_GF_BYTES - 1]
+		   & (GF_PER_SECTOR (dev) - 1));
+  sec->low_byte_c = (((GF_PER_SECTOR (dev) - 1) & ~sec->low_byte) + 1);
+  idx[GRUB_CRYPTODISK_GF_BYTES - 1] &= ~(GF_PER_SECTOR (dev) - 1);
+  gf_mul_be (sec->low, dev->lrw_key, idx);
+  if (!sec->low_byte)
+    return;
+
+  c = idx[GRUB_CRYPTODISK_GF_BYTES - 1] + GF_PER_SECTOR (dev);
+  if (c & 0x100)
+    {
+      for (j = GRUB_CRYPTODISK_GF_BYTES - 2; j >= 0; j--)
+	{
+	  idx[j]++;
+	  if (idx[j] != 0)
+	    break;
+	}
+    }
+  idx[GRUB_CRYPTODISK_GF_BYTES - 1] = c;
+  gf_mul_be (sec->high, dev->lrw_key, idx);
+}
+
+static void __attribute__ ((unused))
+lrw_xor (const struct lrw_sector *sec,
+	 const struct grub_cryptodisk *dev,
+	 grub_uint8_t *b)
+{
+  unsigned i;
+
+  for (i = 0; i < sec->low_byte_c * GRUB_CRYPTODISK_GF_BYTES;
+       i += GRUB_CRYPTODISK_GF_BYTES)
+    grub_crypto_xor (b + i, b + i, sec->low, GRUB_CRYPTODISK_GF_BYTES);
+  grub_crypto_xor (b, b, dev->lrw_precalc + GRUB_CRYPTODISK_GF_BYTES * sec->low_byte,
+		   sec->low_byte_c * GRUB_CRYPTODISK_GF_BYTES);
+  if (!sec->low_byte)
+    return;
+
+  for (i = sec->low_byte_c * GRUB_CRYPTODISK_GF_BYTES;
+       i < (1U << dev->log_sector_size); i += GRUB_CRYPTODISK_GF_BYTES)
+    grub_crypto_xor (b + i, b + i, sec->high, GRUB_CRYPTODISK_GF_BYTES);
+  grub_crypto_xor (b + sec->low_byte_c * GRUB_CRYPTODISK_GF_BYTES,
+		   b + sec->low_byte_c * GRUB_CRYPTODISK_GF_BYTES,
+		   dev->lrw_precalc, sec->low_byte * GRUB_CRYPTODISK_GF_BYTES);
+}
+
+gcry_err_code_t
+grub_cryptodisk_decrypt (struct grub_cryptodisk *dev,
+			 grub_uint8_t * data, grub_size_t len,
+			 grub_disk_addr_t sector)
+{
+  grub_size_t i;
+  gcry_err_code_t err;
+
+  /* The only mode without IV.  */
+  if (dev->mode == GRUB_CRYPTODISK_MODE_ECB && !dev->rekey)
+    return grub_crypto_ecb_decrypt (dev->cipher, data, data, len);
+
+  for (i = 0; i < len; i += (1U << dev->log_sector_size))
+    {
+      grub_size_t sz = ((dev->cipher->cipher->blocksize
+			 + sizeof (grub_uint32_t) - 1)
+			/ sizeof (grub_uint32_t));
+      grub_uint32_t iv[sz];
+
+      if (dev->rekey)
+	{
+	  grub_uint64_t zone = sector >> dev->rekey_shift;
+	  if (zone != dev->last_rekey)
+	    {
+	      err = dev->rekey (dev, zone);
+	      if (err)
+		return err;
+	      dev->last_rekey = zone;
+	    }
+	}
+
+      grub_memset (iv, 0, sz * sizeof (iv[0]));
+      switch (dev->mode_iv)
+	{
+	case GRUB_CRYPTODISK_MODE_IV_NULL:
+	  break;
+	case GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64_HASH:
+	  {
+	    grub_uint64_t tmp;
+	    grub_uint64_t ctx[(dev->iv_hash->contextsize + 7) / 8];
+
+	    grub_memset (ctx, 0, sizeof (ctx));
+
+	    tmp = grub_cpu_to_le64 (sector << dev->log_sector_size);
+	    dev->iv_hash->init (ctx);
+	    dev->iv_hash->write (ctx, dev->iv_prefix, dev->iv_prefix_len);
+	    dev->iv_hash->write (ctx, &tmp, sizeof (tmp));
+	    dev->iv_hash->final (ctx);
+
+	    grub_memcpy (iv, dev->iv_hash->read (ctx), sizeof (iv));
+	  }
+	  break;
+	case GRUB_CRYPTODISK_MODE_IV_PLAIN64:
+	  iv[1] = grub_cpu_to_le32 (sector >> 32);
+	case GRUB_CRYPTODISK_MODE_IV_PLAIN:
+	  iv[0] = grub_cpu_to_le32 (sector & 0xFFFFFFFF);
+	  break;
+	case GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64:
+	  iv[1] = grub_cpu_to_le32 (sector >> (32 - dev->log_sector_size));
+	  iv[0] = grub_cpu_to_le32 ((sector << dev->log_sector_size)
+				    & 0xFFFFFFFF);
+	  break;
+	case GRUB_CRYPTODISK_MODE_IV_BENBI:
+	  {
+	    grub_uint64_t num = (sector << dev->benbi_log) + 1;
+	    iv[sz - 2] = grub_cpu_to_be32 (num >> 32);
+	    iv[sz - 1] = grub_cpu_to_be32 (num & 0xFFFFFFFF);
+	  }
+	  break;
+	case GRUB_CRYPTODISK_MODE_IV_ESSIV:
+	  iv[0] = grub_cpu_to_le32 (sector & 0xFFFFFFFF);
+	  err = grub_crypto_ecb_encrypt (dev->essiv_cipher, iv, iv,
+					 dev->cipher->cipher->blocksize);
+	  if (err)
+	    return err;
+	}
+
+      switch (dev->mode)
+	{
+	case GRUB_CRYPTODISK_MODE_CBC:
+	  err = grub_crypto_cbc_decrypt (dev->cipher, data + i, data + i,
+					 (1U << dev->log_sector_size), iv);
+	  if (err)
+	    return err;
+	  break;
+
+	case GRUB_CRYPTODISK_MODE_PCBC:
+	  err = grub_crypto_pcbc_decrypt (dev->cipher, data + i, data + i,
+					  (1U << dev->log_sector_size), iv);
+	  if (err)
+	    return err;
+	  break;
+	case GRUB_CRYPTODISK_MODE_XTS:
+	  {
+	    unsigned j;
+	    err = grub_crypto_ecb_encrypt (dev->secondary_cipher, iv, iv,
+					   dev->cipher->cipher->blocksize);
+	    if (err)
+	      return err;
+	    
+	    for (j = 0; j < (1U << dev->log_sector_size);
+		 j += dev->cipher->cipher->blocksize)
+	      {
+		grub_crypto_xor (data + i + j, data + i + j, iv,
+				 dev->cipher->cipher->blocksize);
+		err = grub_crypto_ecb_decrypt (dev->cipher, data + i + j, 
+					       data + i + j,
+					       dev->cipher->cipher->blocksize);
+		if (err)
+		  return err;
+		grub_crypto_xor (data + i + j, data + i + j, iv,
+				 dev->cipher->cipher->blocksize);
+		gf_mul_x ((grub_uint8_t *) iv);
+	      }
+	  }
+	  break;
+	case GRUB_CRYPTODISK_MODE_LRW:
+	  {
+	    struct lrw_sector sec;
+
+	    generate_lrw_sector (&sec, dev, (grub_uint8_t *) iv);
+	    lrw_xor (&sec, dev, data + i);
+
+	    err = grub_crypto_ecb_decrypt (dev->cipher, data + i, 
+					   data + i,
+					   (1U << dev->log_sector_size));
+	    if (err)
+	      return err;
+	    lrw_xor (&sec, dev, data + i);
+	  }
+	  break;
+	case GRUB_CRYPTODISK_MODE_ECB:
+	  grub_crypto_ecb_decrypt (dev->cipher, data + i, data + i,
+				   (1U << dev->log_sector_size));
+	  break;
+	default:
+	  return GPG_ERR_NOT_IMPLEMENTED;
+	}
+      sector++;
+    }
+  return GPG_ERR_NO_ERROR;
+}
+
+gcry_err_code_t
+grub_cryptodisk_setkey (grub_cryptodisk_t dev, grub_uint8_t *key, grub_size_t keysize)
+{
+  gcry_err_code_t err;
+  int real_keysize;
+
+  real_keysize = keysize;
+  if (dev->mode == GRUB_CRYPTODISK_MODE_XTS)
+    real_keysize /= 2;
+  if (dev->mode == GRUB_CRYPTODISK_MODE_LRW)
+    real_keysize -= dev->cipher->cipher->blocksize;
+	
+  /* Set the PBKDF2 output as the cipher key.  */
+  err = grub_crypto_cipher_set_key (dev->cipher, key, real_keysize);
+  if (err)
+    return err;
+
+  /* Configure ESSIV if necessary.  */
+  if (dev->mode_iv == GRUB_CRYPTODISK_MODE_IV_ESSIV)
+    {
+      grub_size_t essiv_keysize = dev->essiv_hash->mdlen;
+      grub_uint8_t hashed_key[essiv_keysize];
+
+      grub_crypto_hash (dev->essiv_hash, hashed_key, key, keysize);
+      err = grub_crypto_cipher_set_key (dev->essiv_cipher,
+					hashed_key, essiv_keysize);
+      if (err)
+	return err;
+    }
+  if (dev->mode == GRUB_CRYPTODISK_MODE_XTS)
+    {
+      err = grub_crypto_cipher_set_key (dev->secondary_cipher,
+					key + real_keysize,
+					keysize / 2);
+      if (err)
+	return err;
+    }
+
+  if (dev->mode == GRUB_CRYPTODISK_MODE_LRW)
+    {
+      unsigned i;
+      grub_uint8_t idx[GRUB_CRYPTODISK_GF_BYTES];
+
+      grub_free (dev->lrw_precalc);
+      grub_memcpy (dev->lrw_key, key + real_keysize,
+		   dev->cipher->cipher->blocksize);
+      dev->lrw_precalc = grub_malloc ((1U << dev->log_sector_size));
+      if (!dev->lrw_precalc)
+	return GPG_ERR_OUT_OF_MEMORY;
+      grub_memset (idx, 0, GRUB_CRYPTODISK_GF_BYTES);
+      for (i = 0; i < (1U << dev->log_sector_size);
+	   i += GRUB_CRYPTODISK_GF_BYTES)
+	{
+	  idx[GRUB_CRYPTODISK_GF_BYTES - 1] = i / GRUB_CRYPTODISK_GF_BYTES;
+	  gf_mul_be (dev->lrw_precalc + i, idx, dev->lrw_key);
+	}
+    }
+  return GPG_ERR_NO_ERROR;
+}
+
+static int
+grub_cryptodisk_iterate (int (*hook) (const char *name),
+		   grub_disk_pull_t pull)
+{
+  grub_cryptodisk_t i;
+
+  if (pull != GRUB_DISK_PULL_NONE)
+    return 0;
+
+  for (i = cryptodisk_list; i != NULL; i = i->next)
+    {
+      char buf[30];
+      grub_snprintf (buf, sizeof (buf), "crypto%lu", i->id);
+      if (hook (buf))
+	return 1;
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cryptodisk_open (const char *name, grub_disk_t disk,
+		grub_disk_pull_t pull __attribute__ ((unused)))
+{
+  grub_cryptodisk_t dev;
+
+  if (grub_memcmp (name, "crypto", sizeof ("crypto") - 1) != 0)
+    return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "No such device");
+
+  if (grub_memcmp (name, "cryptouuid/", sizeof ("cryptouuid/") - 1) == 0)
+    {
+      for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
+	if (grub_strcasecmp (name + sizeof ("cryptouuid/") - 1, dev->uuid) == 0)
+	  break;
+    }
+  else
+    {
+      unsigned long id = grub_strtoul (name + sizeof ("crypto") - 1, 0, 0);
+      if (grub_errno)
+	return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "No such device");
+      /* Search for requested device in the list of CRYPTODISK devices.  */
+      for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
+	if (dev->id == id)
+	  break;
+    }
+  if (!dev)
+    return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "No such device");
+
+  disk->log_sector_size = dev->log_sector_size;
+
+#ifdef GRUB_UTIL
+  if (dev->cheat)
+    {
+      if (dev->cheat_fd == -1)
+	dev->cheat_fd = open (dev->cheat, O_RDONLY);
+      if (dev->cheat_fd == -1)
+	return grub_error (GRUB_ERR_IO, "couldn't open %s: %s",
+			   dev->cheat, strerror (errno));
+    }
+#endif
+
+  if (!dev->source_disk)
+    {
+      grub_dprintf ("cryptodisk", "Opening device %s\n", name);
+      /* Try to open the source disk and populate the requested disk.  */
+      dev->source_disk = grub_disk_open (dev->source);
+      if (!dev->source_disk)
+	return grub_errno;
+    }
+
+  disk->data = dev;
+  disk->total_sectors = dev->total_length;
+  disk->id = dev->id;
+  dev->ref++;
+  return GRUB_ERR_NONE;
+}
+
+static void
+grub_cryptodisk_close (grub_disk_t disk)
+{
+  grub_cryptodisk_t dev = (grub_cryptodisk_t) disk->data;
+  grub_dprintf ("cryptodisk", "Closing disk\n");
+
+  dev->ref--;
+
+  if (dev->ref != 0)
+    return;
+#ifdef GRUB_UTIL
+  if (dev->cheat)
+    {
+      close (dev->cheat_fd);
+      dev->cheat_fd = -1;
+    }
+#endif
+  grub_disk_close (dev->source_disk);
+  dev->source_disk = NULL;
+}
+
+static grub_err_t
+grub_cryptodisk_read (grub_disk_t disk, grub_disk_addr_t sector,
+		      grub_size_t size, char *buf)
+{
+  grub_cryptodisk_t dev = (grub_cryptodisk_t) disk->data;
+  grub_err_t err;
+  gcry_err_code_t gcry_err;
+
+#ifdef GRUB_UTIL
+  if (dev->cheat)
+    {
+      err = grub_util_fd_seek (dev->cheat_fd, dev->cheat,
+			       sector << disk->log_sector_size);
+      if (err)
+	return err;
+      if (grub_util_fd_read (dev->cheat_fd, buf, size << disk->log_sector_size)
+	  != (ssize_t) (size << disk->log_sector_size))
+	return grub_error (GRUB_ERR_READ_ERROR, "cannot read from `%s'",
+			   dev->cheat);
+      return GRUB_ERR_NONE;
+    }
+#endif
+
+  grub_dprintf ("cryptodisk",
+		"Reading %" PRIuGRUB_SIZE " sectors from sector 0x%"
+		PRIxGRUB_UINT64_T " with offset of %" PRIuGRUB_UINT64_T "\n",
+		size, sector, dev->offset);
+
+  err = grub_disk_read (dev->source_disk,
+			(sector << (disk->log_sector_size
+				   - GRUB_DISK_SECTOR_BITS)) + dev->offset, 0,
+			size << disk->log_sector_size, buf);
+  if (err)
+    {
+      grub_dprintf ("cryptodisk", "grub_disk_read failed with error %d\n", err);
+      return err;
+    }
+  gcry_err = grub_cryptodisk_decrypt (dev, (grub_uint8_t *) buf,
+				      size << disk->log_sector_size,
+				      sector);
+  return grub_crypto_gcry_error (gcry_err);
+}
+
+static grub_err_t
+grub_cryptodisk_write (grub_disk_t disk __attribute ((unused)),
+		 grub_disk_addr_t sector __attribute ((unused)),
+		 grub_size_t size __attribute ((unused)),
+		 const char *buf __attribute ((unused)))
+{
+  return GRUB_ERR_NOT_IMPLEMENTED_YET;
+}
+
+#ifdef GRUB_UTIL
+static grub_disk_memberlist_t
+grub_cryptodisk_memberlist (grub_disk_t disk)
+{
+  grub_cryptodisk_t dev = (grub_cryptodisk_t) disk->data;
+  grub_disk_memberlist_t list = NULL;
+
+  list = grub_malloc (sizeof (*list));
+  if (list)
+    {
+      list->disk = dev->source_disk;
+      list->next = NULL;
+    }
+
+  return list;
+}
+#endif
+
+static void
+cryptodisk_cleanup (void)
+{
+  grub_cryptodisk_t dev = cryptodisk_list;
+  grub_cryptodisk_t tmp;
+
+  while (dev != NULL)
+    {
+      grub_free (dev->source);
+      grub_free (dev->cipher);
+      grub_free (dev->secondary_cipher);
+      grub_free (dev->essiv_cipher);
+      tmp = dev->next;
+      grub_free (dev);
+      dev = tmp;
+    }
+}
+
+grub_err_t
+grub_cryptodisk_insert (grub_cryptodisk_t newdev, const char *name,
+			grub_disk_t source)
+{
+  newdev->source = grub_strdup (name);
+  if (!newdev->source)
+    {
+      grub_free (newdev);
+      return grub_errno;
+    }
+
+  newdev->id = n++;
+  newdev->source_id = source->id;
+  newdev->source_dev_id = source->dev->id;
+  newdev->next = cryptodisk_list;
+  cryptodisk_list = newdev;
+
+  return GRUB_ERR_NONE;
+}
+
+grub_cryptodisk_t
+grub_cryptodisk_get_by_uuid (const char *uuid)
+{
+  grub_cryptodisk_t dev;
+  for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
+    if (grub_strcasecmp (dev->uuid, uuid) == 0)
+      return dev;
+  return NULL;
+}
+
+grub_cryptodisk_t
+grub_cryptodisk_get_by_source_disk (grub_disk_t disk)
+{
+  grub_cryptodisk_t dev;
+  for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
+    if (dev->source_id == disk->id && dev->source_dev_id == disk->dev->id)
+      return dev;
+  return NULL;
+}
+
+#ifdef GRUB_UTIL
+grub_err_t
+grub_cryptodisk_cheat_insert (grub_cryptodisk_t newdev, const char *name,
+			      grub_disk_t source, const char *cheat)
+{
+  newdev->cheat = grub_strdup (cheat);
+  newdev->source = grub_strdup (name);
+  if (!newdev->source || !newdev->cheat)
+    {
+      grub_free (newdev->source);
+      grub_free (newdev->cheat);
+      return grub_errno;
+    }
+
+  newdev->cheat_fd = -1;
+  newdev->source_id = source->id;
+  newdev->source_dev_id = source->dev->id;
+  newdev->id = n++;
+  newdev->next = cryptodisk_list;
+  cryptodisk_list = newdev;
+
+  return GRUB_ERR_NONE;
+}
+
+void
+grub_util_cryptodisk_print_abstraction (grub_disk_t disk)
+{
+  grub_cryptodisk_t dev = (grub_cryptodisk_t) disk->data;
+
+  grub_printf ("cryptodisk %s ", dev->modname);
+
+  if (dev->cipher)
+    grub_printf ("%s ", dev->cipher->cipher->modname);
+  if (dev->secondary_cipher)
+    grub_printf ("%s ", dev->secondary_cipher->cipher->modname);
+  if (dev->essiv_cipher)
+    grub_printf ("%s ", dev->essiv_cipher->cipher->modname);
+  if (dev->hash)
+    grub_printf ("%s ", dev->hash->modname);
+  if (dev->essiv_hash)
+    grub_printf ("%s ", dev->essiv_hash->modname);
+  if (dev->iv_hash)
+    grub_printf ("%s ", dev->iv_hash->modname);
+}
+
+void
+grub_util_cryptodisk_print_uuid (grub_disk_t disk)
+{
+  grub_cryptodisk_t dev = (grub_cryptodisk_t) disk->data;
+  grub_printf ("%s ", dev->uuid);
+}
+
+#endif
+
+static int check_boot, have_it;
+static char *search_uuid;
+
+static void
+cryptodisk_close (grub_cryptodisk_t dev)
+{
+  grub_crypto_cipher_close (dev->cipher);
+  grub_crypto_cipher_close (dev->secondary_cipher);
+  grub_crypto_cipher_close (dev->essiv_cipher);
+  grub_free (dev);
+}
+
+static grub_err_t
+grub_cryptodisk_scan_device_real (const char *name, grub_disk_t source)
+{
+  grub_err_t err;
+  grub_cryptodisk_t dev;
+  grub_cryptodisk_dev_t cr;
+
+  dev = grub_cryptodisk_get_by_source_disk (source);
+
+  if (dev)
+    return GRUB_ERR_NONE;
+
+  FOR_CRYPTODISK_DEVS (cr)
+  {
+    dev = cr->scan (source, search_uuid, check_boot);
+    if (grub_errno)
+      return grub_errno;
+    if (!dev)
+      continue;
+    
+    err = cr->recover_key (source, dev);
+    if (err)
+    {
+      cryptodisk_close (dev);
+      return err;
+    }
+
+    grub_cryptodisk_insert (dev, name, source);
+
+    have_it = 1;
+
+    return GRUB_ERR_NONE;
+  }
+  return GRUB_ERR_NONE;
+}
+
+#ifdef GRUB_UTIL
+#include <grub/util/misc.h>
+grub_err_t
+grub_cryptodisk_cheat_mount (const char *sourcedev, const char *cheat)
+{
+  grub_err_t err;
+  grub_cryptodisk_t dev;
+  grub_cryptodisk_dev_t cr;
+  grub_disk_t source;
+
+  /* Try to open disk.  */
+  source = grub_disk_open (sourcedev);
+  if (!source)
+    return grub_errno;
+
+  dev = grub_cryptodisk_get_by_source_disk (source);
+
+  if (dev)
+    {
+      grub_disk_close (source);	
+      return GRUB_ERR_NONE;
+    }
+
+  FOR_CRYPTODISK_DEVS (cr)
+  {
+    dev = cr->scan (source, search_uuid, check_boot);
+    if (grub_errno)
+      return grub_errno;
+    if (!dev)
+      continue;
+
+    grub_util_info ("cheatmounted %s (%s) at %s", sourcedev, dev->modname,
+		    cheat);
+    err = grub_cryptodisk_cheat_insert (dev, sourcedev, source, cheat);
+    grub_disk_close (source);
+    if (err)
+      grub_free (dev);
+
+    return GRUB_ERR_NONE;
+  }
+
+  grub_disk_close (source);
+
+  return GRUB_ERR_NONE;
+}
+#endif
+
+static int
+grub_cryptodisk_scan_device (const char *name)
+{
+  grub_err_t err;
+  grub_disk_t source;
+
+  /* Try to open disk.  */
+  source = grub_disk_open (name);
+  if (!source)
+    return grub_errno;
+
+  err = grub_cryptodisk_scan_device_real (name, source);
+
+  grub_disk_close (source);
+  
+  if (err)
+    grub_print_error ();
+  return have_it && search_uuid ? 1 : 0;
+}
+
+static grub_err_t
+grub_cmd_cryptomount (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+
+  if (argc < 1 && !state[1].set && !state[2].set)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
+
+  have_it = 0;
+  if (state[0].set)
+    {
+      grub_cryptodisk_t dev;
+
+      dev = grub_cryptodisk_get_by_uuid (args[0]);
+      if (dev)
+	{
+	  grub_dprintf ("cryptodisk",
+			"already mounted as crypto%lu\n", dev->id);
+	  return GRUB_ERR_NONE;
+	}
+
+      check_boot = state[2].set;
+      search_uuid = args[0];
+      grub_device_iterate (&grub_cryptodisk_scan_device);
+      search_uuid = NULL;
+
+      if (!have_it)
+	return grub_error (GRUB_ERR_BAD_ARGUMENT, "no such cryptodisk found");
+      return GRUB_ERR_NONE;
+    }
+  else if (state[1].set || (argc == 0 && state[2].set))
+    {
+      search_uuid = NULL;
+      check_boot = state[2].set;
+      grub_device_iterate (&grub_cryptodisk_scan_device);
+      search_uuid = NULL;
+      return GRUB_ERR_NONE;
+    }
+  else
+    {
+      grub_err_t err;
+      grub_disk_t disk;
+      grub_cryptodisk_t dev;
+
+      search_uuid = NULL;
+      check_boot = state[2].set;
+      disk = grub_disk_open (args[0]);
+      if (!disk)
+	return grub_errno;
+
+      dev = grub_cryptodisk_get_by_source_disk (disk);
+      if (dev)
+	{
+	  grub_dprintf ("cryptodisk", "already mounted as crypto%lu\n", dev->id);
+	  grub_disk_close (disk);
+	  return GRUB_ERR_NONE;
+	}
+
+      err = grub_cryptodisk_scan_device_real (args[0], disk);
+
+      grub_disk_close (disk);
+
+      return err;
+    }
+}
+
+static struct grub_disk_dev grub_cryptodisk_dev = {
+  .name = "cryptodisk",
+  .id = GRUB_DISK_DEVICE_CRYPTODISK_ID,
+  .iterate = grub_cryptodisk_iterate,
+  .open = grub_cryptodisk_open,
+  .close = grub_cryptodisk_close,
+  .read = grub_cryptodisk_read,
+  .write = grub_cryptodisk_write,
+#ifdef GRUB_UTIL
+  .memberlist = grub_cryptodisk_memberlist,
+#endif
+  .next = 0
+};
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT (cryptodisk)
+{
+  grub_disk_dev_register (&grub_cryptodisk_dev);
+  cmd = grub_register_extcmd ("cryptomount", grub_cmd_cryptomount, 0,
+			      N_("SOURCE|-u UUID|-a|-b"),
+			      N_("Mount a crypto device."), options);
+}
+
+GRUB_MOD_FINI (cryptodisk)
+{
+  grub_disk_dev_unregister (&grub_cryptodisk_dev);
+  cryptodisk_cleanup ();
+}

grub-core/disk/geli.c

@@ -0,0 +1,536 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2007,2010,2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* This file is loosely based on FreeBSD geli implementation
+   (but no code was directly copied). FreeBSD geli is distributed under
+   following terms:  */
+/*-
+ * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <grub/cryptodisk.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/err.h>
+#include <grub/disk.h>
+#include <grub/crypto.h>
+#include <grub/partition.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_geli_key
+{
+  grub_uint8_t iv_key[64];
+  grub_uint8_t cipher_key[64];
+  grub_uint8_t hmac[64];
+} __attribute__ ((packed));
+
+struct grub_geli_phdr
+{
+  grub_uint8_t magic[16];
+#define GELI_MAGIC "GEOM::ELI"
+  grub_uint32_t version;
+  grub_uint32_t flags;
+  grub_uint16_t alg;
+  grub_uint16_t keylen;
+  grub_uint16_t unused3[5];
+  grub_uint32_t sector_size;
+  grub_uint8_t keys_used;
+  grub_uint32_t niter;
+  grub_uint8_t salt[64];
+  struct grub_geli_key keys[2];
+} __attribute__ ((packed));
+
+enum
+  {
+    GRUB_GELI_FLAGS_ONETIME = 1,
+    GRUB_GELI_FLAGS_BOOT = 2,
+  };
+
+/* FIXME: support version 0.  */
+/* FIXME: support big-endian pre-version-4 volumes.  */
+/* FIXME: support for keyfiles.  */
+/* FIXME: support for HMAC.  */
+const char *algorithms[] = {
+  [0x01] = "des",
+  [0x02] = "3des",
+  [0x03] = "blowfish",
+  [0x04] = "cast5",
+  /* FIXME: 0x05 is skipjack, but we don't have it.  */
+  [0x0b] = "aes",
+  /* FIXME: 0x10 is null.  */
+  [0x15] = "camellia128",
+  [0x16] = "aes"
+};
+
+#define MAX_PASSPHRASE 256
+
+static gcry_err_code_t
+geli_rekey (struct grub_cryptodisk *dev, grub_uint64_t zoneno)
+{
+  gcry_err_code_t gcry_err;
+  const struct {
+    char magic[4];
+    grub_uint64_t zone;
+  } __attribute__ ((packed)) tohash
+      = { {'e', 'k', 'e', 'y'}, grub_cpu_to_le64 (zoneno) };
+  grub_uint64_t key[(dev->hash->mdlen + 7) / 8];
+
+  grub_dprintf ("geli", "rekeying %" PRIuGRUB_UINT64_T " keysize=%d\n",
+		zoneno, dev->rekey_derived_size);
+  gcry_err = grub_crypto_hmac_buffer (dev->hash, dev->rekey_key, 64,
+				      &tohash, sizeof (tohash), key);
+  if (gcry_err)
+    return grub_crypto_gcry_error (gcry_err);
+
+  return grub_cryptodisk_setkey (dev, (grub_uint8_t *) key,
+				 dev->rekey_derived_size); 
+}
+
+static inline int
+ascii2hex (char c)
+{
+  if (c >= '0' && c <= '9')
+    return c - '0';
+  if (c >= 'a' && c <= 'f')
+    return c - 'a' + 10;
+  if (c >= 'A' && c <= 'F')
+    return c - 'A' + 10;
+  return 0;
+}
+
+static inline gcry_err_code_t
+make_uuid (const struct grub_geli_phdr *header,
+	   char *uuid)
+{
+  grub_uint8_t uuidbin[GRUB_MD_SHA256->mdlen];
+  gcry_err_code_t err;
+  grub_uint8_t *iptr;
+  char *optr;
+
+  err = grub_crypto_hmac_buffer (GRUB_MD_SHA256,
+				 header->salt, sizeof (header->salt),
+				 "uuid", sizeof ("uuid") - 1, uuidbin);
+  if (err)
+    return err;
+
+  optr = uuid;
+  for (iptr = uuidbin; iptr < &uuidbin[ARRAY_SIZE (uuidbin)]; iptr++)
+    {
+      grub_snprintf (optr, 3, "%02x", *iptr);
+      optr += 2;
+    }
+  *optr = 0;
+  return GPG_ERR_NO_ERROR;
+}
+
+#ifdef GRUB_UTIL
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <grub/emu/hostdisk.h>
+#include <unistd.h>
+#include <string.h>
+#include <grub/emu/misc.h>
+
+char *
+grub_util_get_geli_uuid (const char *dev)
+{
+  int fd = open (dev, O_RDONLY);
+  grub_uint64_t s;
+  unsigned log_secsize;
+  grub_uint8_t hdr[512];
+  struct grub_geli_phdr *header;
+  char *uuid; 
+  gcry_err_code_t err;
+
+  if (fd < 0)
+    return NULL;
+
+  s = grub_util_get_fd_sectors (fd, &log_secsize);
+  grub_util_fd_seek (fd, dev, (s << log_secsize) - 512);
+
+  uuid = xmalloc (GRUB_MD_SHA256->mdlen * 2 + 1);
+  if (grub_util_fd_read (fd, (void *) &hdr, 512) < 0)
+    grub_util_error ("couldn't read ELI metadata");
+	  
+  COMPILE_TIME_ASSERT (sizeof (header) <= 512);
+  header = (void *) &hdr;
+
+  /* Look for GELI magic sequence.  */
+  if (grub_memcmp (header->magic, GELI_MAGIC, sizeof (GELI_MAGIC))
+      || grub_le_to_cpu32 (header->version) > 5
+      || grub_le_to_cpu32 (header->version) < 1)
+    grub_util_error ("wrong ELI magic or version");
+
+  err = make_uuid ((void *) &hdr, uuid);
+  if (err)
+    return NULL;
+
+  return uuid;
+}
+#endif
+
+static grub_cryptodisk_t
+configure_ciphers (grub_disk_t disk, const char *check_uuid,
+		   int boot_only)
+{
+  grub_cryptodisk_t newdev;
+  struct grub_geli_phdr header;
+  grub_crypto_cipher_handle_t cipher = NULL, secondary_cipher = NULL;
+  const struct gcry_cipher_spec *ciph;
+  const char *ciphername = NULL;
+  gcry_err_code_t gcry_err;
+  char uuid[GRUB_MD_SHA256->mdlen * 2 + 1];
+  grub_disk_addr_t sector;
+  grub_err_t err;
+
+  sector = grub_disk_get_size (disk);
+  if (sector == GRUB_DISK_SIZE_UNKNOWN || sector == 0)
+    return NULL;
+
+  /* Read the GELI header.  */
+  err = grub_disk_read (disk, sector - 1, 0, sizeof (header), &header);
+  if (err)
+    return NULL;
+
+  /* Look for GELI magic sequence.  */
+  if (grub_memcmp (header.magic, GELI_MAGIC, sizeof (GELI_MAGIC))
+      || grub_le_to_cpu32 (header.version) > 5
+      || grub_le_to_cpu32 (header.version) < 1)
+    {
+      grub_dprintf ("geli", "wrong magic %02x\n", header.magic[0]);
+      return NULL;
+    }
+
+  if ((grub_le_to_cpu32 (header.sector_size)
+       & (grub_le_to_cpu32 (header.sector_size) - 1))
+      || grub_le_to_cpu32 (header.sector_size) == 0)
+    {
+      grub_dprintf ("geli", "incorrect sector size %d\n",
+		    grub_le_to_cpu32 (header.sector_size));
+      return NULL;
+    }
+
+  if (grub_le_to_cpu32 (header.flags) & GRUB_GELI_FLAGS_ONETIME)
+    {
+      grub_dprintf ("geli", "skipping one-time volume\n");
+      return NULL;
+    }
+
+  if (boot_only && !(grub_le_to_cpu32 (header.flags) & GRUB_GELI_FLAGS_BOOT))
+    {
+      grub_dprintf ("geli", "not a boot volume\n");
+      return NULL;
+    }    
+
+  gcry_err = make_uuid (&header, uuid);
+  if (gcry_err)
+    {
+      grub_crypto_gcry_error (gcry_err);
+      return NULL;
+    }
+
+  if (check_uuid && grub_strcasecmp (check_uuid, uuid) != 0)
+    {
+      grub_dprintf ("geli", "%s != %s\n", uuid, check_uuid);
+      return NULL;
+    }
+
+  if (grub_le_to_cpu16 (header.alg) >= ARRAY_SIZE (algorithms)
+      || algorithms[grub_le_to_cpu16 (header.alg)] == NULL)
+    {
+      grub_error (GRUB_ERR_FILE_NOT_FOUND, "Cipher 0x%x unknown",
+		  grub_le_to_cpu16 (header.alg));
+      return NULL;
+    }
+
+  ciphername = algorithms[grub_le_to_cpu16 (header.alg)];
+  ciph = grub_crypto_lookup_cipher_by_name (ciphername);
+  if (!ciph)
+    {
+      grub_error (GRUB_ERR_FILE_NOT_FOUND, "Cipher %s isn't available",
+		  ciphername);
+      return NULL;
+    }
+
+  /* Configure the cipher used for the bulk data.  */
+  cipher = grub_crypto_cipher_open (ciph);
+  if (!cipher)
+    return NULL;
+
+  if (grub_le_to_cpu16 (header.alg) == 0x16)
+    {
+      secondary_cipher = grub_crypto_cipher_open (ciph);
+      if (!secondary_cipher)
+	return NULL;
+    }
+
+  if (grub_le_to_cpu16 (header.keylen) > 1024)
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid keysize %d",
+		  grub_le_to_cpu16 (header.keylen));
+      return NULL;
+    }
+
+  newdev = grub_zalloc (sizeof (struct grub_cryptodisk));
+  if (!newdev)
+    return NULL;
+  newdev->cipher = cipher;
+  newdev->secondary_cipher = secondary_cipher;
+  newdev->offset = 0;
+  newdev->source_disk = NULL;
+  newdev->benbi_log = 0;
+  if (grub_le_to_cpu16 (header.alg) == 0x16)
+    {
+      newdev->mode = GRUB_CRYPTODISK_MODE_XTS;
+      newdev->mode_iv = GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64;
+    }
+  else
+    {
+      newdev->mode = GRUB_CRYPTODISK_MODE_CBC;
+      newdev->mode_iv = GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64_HASH;
+    }
+  newdev->essiv_cipher = NULL;
+  newdev->essiv_hash = NULL;
+  newdev->hash = GRUB_MD_SHA512;
+  newdev->iv_hash = GRUB_MD_SHA256;
+
+  for (newdev->log_sector_size = 0;
+       (1U << newdev->log_sector_size) < grub_le_to_cpu32 (header.sector_size);
+       newdev->log_sector_size++);
+
+  if (grub_le_to_cpu32 (header.version) >= 5)
+    {
+      newdev->rekey = geli_rekey;
+      newdev->rekey_shift = 20;
+    }
+
+#ifdef GRUB_UTIL
+  newdev->modname = "geli";
+#endif
+
+  newdev->total_length = grub_disk_get_size (disk) - 1;
+  grub_memcpy (newdev->uuid, uuid, sizeof (newdev->uuid));
+  COMPILE_TIME_ASSERT (sizeof (newdev->uuid) >= 32 * 2 + 1);
+  return newdev;
+}
+
+static grub_err_t
+recover_key (grub_disk_t source, grub_cryptodisk_t dev)
+{
+  grub_size_t keysize;
+  grub_uint8_t digest[dev->hash->mdlen];
+  grub_uint8_t geomkey[dev->hash->mdlen];
+  grub_uint8_t verify_key[dev->hash->mdlen];
+  grub_uint8_t zero[dev->cipher->cipher->blocksize];
+  char passphrase[MAX_PASSPHRASE] = "";
+  unsigned i;
+  gcry_err_code_t gcry_err;
+  struct grub_geli_phdr header;
+  char *tmp;
+  grub_disk_addr_t sector;
+  grub_err_t err;
+
+  sector = grub_disk_get_size (source);
+  if (sector == GRUB_DISK_SIZE_UNKNOWN || sector == 0)
+    return grub_error (GRUB_ERR_OUT_OF_RANGE, "not a geli");
+
+  /* Read the GELI header.  */
+  err = grub_disk_read (source, sector - 1, 0, sizeof (header), &header);
+  if (err)
+    return err;
+
+  keysize = grub_le_to_cpu16 (header.keylen) / 8;
+  grub_memset (zero, 0, sizeof (zero));
+
+  grub_printf ("Attempting to decrypt master key...\n");
+
+  /* Get the passphrase from the user.  */
+  tmp = NULL;
+  if (source->partition)
+    tmp = grub_partition_get_name (source->partition);
+  grub_printf ("Enter passphrase for %s%s%s (%s): ", source->name,
+	       source->partition ? "," : "", tmp ? : "",
+	       dev->uuid);
+  grub_free (tmp);
+  if (!grub_password_get (passphrase, MAX_PASSPHRASE))
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Passphrase not supplied");
+
+  /* Calculate the PBKDF2 of the user supplied passphrase.  */
+  if (grub_le_to_cpu32 (header.niter) != 0)
+    {
+      grub_uint8_t pbkdf_key[64];
+      gcry_err = grub_crypto_pbkdf2 (dev->hash, (grub_uint8_t *) passphrase,
+				     grub_strlen (passphrase),
+				     header.salt,
+				     sizeof (header.salt),
+				     grub_le_to_cpu32 (header.niter),
+				     pbkdf_key, sizeof (pbkdf_key));
+
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+
+      gcry_err = grub_crypto_hmac_buffer (dev->hash, NULL, 0, pbkdf_key,
+					  sizeof (pbkdf_key), geomkey);
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+    }
+  else
+    {
+      struct grub_crypto_hmac_handle *hnd;
+
+      hnd = grub_crypto_hmac_init (dev->hash, NULL, 0);
+      if (!hnd)
+	return grub_crypto_gcry_error (GPG_ERR_OUT_OF_MEMORY);
+
+      grub_crypto_hmac_write (hnd, header.salt, sizeof (header.salt));
+      grub_crypto_hmac_write (hnd, passphrase, grub_strlen (passphrase));
+
+      gcry_err = grub_crypto_hmac_fini (hnd, geomkey);
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+    }
+
+  gcry_err = grub_crypto_hmac_buffer (dev->hash, geomkey,
+				      sizeof (geomkey), "\1", 1, digest);
+  if (gcry_err)
+    return grub_crypto_gcry_error (gcry_err);
+
+  gcry_err = grub_crypto_hmac_buffer (dev->hash, geomkey,
+				      sizeof (geomkey), "\0", 1, verify_key);
+  if (gcry_err)
+    return grub_crypto_gcry_error (gcry_err);
+
+  grub_dprintf ("geli", "keylen = %" PRIuGRUB_SIZE "\n", keysize);
+
+  /* Try to recover master key from each active keyslot.  */
+  for (i = 0; i < ARRAY_SIZE (header.keys); i++)
+    {
+      struct grub_geli_key candidate_key;
+      grub_uint8_t key_hmac[dev->hash->mdlen];
+
+      /* Check if keyslot is enabled.  */
+      if (! (header.keys_used & (1 << i)))
+	  continue;
+
+      grub_dprintf ("geli", "Trying keyslot %d\n", i);
+
+      gcry_err = grub_crypto_cipher_set_key (dev->cipher,
+					     digest, keysize);
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+
+      gcry_err = grub_crypto_cbc_decrypt (dev->cipher, &candidate_key,
+					  &header.keys[i],
+					  sizeof (candidate_key),
+					  zero);
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+
+      gcry_err = grub_crypto_hmac_buffer (dev->hash, verify_key,
+					  sizeof (verify_key), 
+					  &candidate_key,
+					  (sizeof (candidate_key)
+					   - sizeof (candidate_key.hmac)),
+					  key_hmac);
+      if (gcry_err)
+	return grub_crypto_gcry_error (gcry_err);
+
+      if (grub_memcmp (candidate_key.hmac, key_hmac, dev->hash->mdlen) != 0)
+	continue;
+      grub_printf ("Slot %d opened\n", i);
+
+      /* Set the master key.  */
+      if (!dev->rekey)
+	{
+	  grub_size_t real_keysize = keysize;
+	  if (grub_le_to_cpu16 (header.alg) == 0x16)
+	    real_keysize *= 2;
+	  gcry_err = grub_cryptodisk_setkey (dev, candidate_key.cipher_key,
+					     real_keysize); 
+	  if (gcry_err)
+	    return grub_crypto_gcry_error (gcry_err);
+	}
+      else
+	{
+	  grub_size_t real_keysize = keysize;
+	  if (grub_le_to_cpu16 (header.alg) == 0x16)
+	    real_keysize *= 2;
+	  /* For a reason I don't know, the IV key is used in rekeying.  */
+	  grub_memcpy (dev->rekey_key, candidate_key.iv_key,
+		       sizeof (candidate_key.iv_key));
+	  dev->rekey_derived_size = real_keysize;
+	  dev->last_rekey = -1;
+	  COMPILE_TIME_ASSERT (sizeof (dev->rekey_key)
+			       >= sizeof (candidate_key.iv_key));
+	}
+
+      dev->iv_prefix_len = sizeof (candidate_key.iv_key);
+      grub_memcpy (dev->iv_prefix, candidate_key.iv_key,
+		   sizeof (candidate_key.iv_key));
+
+      COMPILE_TIME_ASSERT (sizeof (dev->iv_prefix) >= sizeof (candidate_key.iv_key));
+
+      return GRUB_ERR_NONE;
+    }
+
+  return GRUB_ACCESS_DENIED;
+}
+
+struct grub_cryptodisk_dev geli_crypto = {
+  .scan = configure_ciphers,
+  .recover_key = recover_key
+};
+
+GRUB_MOD_INIT (geli)
+{
+  grub_cryptodisk_dev_register (&geli_crypto);
+}
+
+GRUB_MOD_FINI (geli)
+{
+  grub_cryptodisk_dev_unregister (&geli_crypto);
+}

grub-core/disk/luks.c

@@ -0,0 +1,470 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2003,2007,2010,2011  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/cryptodisk.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/err.h>
+#include <grub/disk.h>
+#include <grub/crypto.h>
+#include <grub/partition.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define MAX_PASSPHRASE 256
+
+#define LUKS_KEY_ENABLED  0x00AC71F3
+
+/* On disk LUKS header */
+struct grub_luks_phdr
+{
+  grub_uint8_t magic[6];
+#define LUKS_MAGIC        "LUKS\xBA\xBE"
+  grub_uint16_t version;
+  char cipherName[32];
+  char cipherMode[32];
+  char hashSpec[32];
+  grub_uint32_t payloadOffset;
+  grub_uint32_t keyBytes;
+  grub_uint8_t mkDigest[20];
+  grub_uint8_t mkDigestSalt[32];
+  grub_uint32_t mkDigestIterations;
+  char uuid[40];
+  struct
+  {
+    grub_uint32_t active;
+    grub_uint32_t passwordIterations;
+    grub_uint8_t passwordSalt[32];
+    grub_uint32_t keyMaterialOffset;
+    grub_uint32_t stripes;
+  } keyblock[8];
+} __attribute__ ((packed));
+
+typedef struct grub_luks_phdr *grub_luks_phdr_t;
+
+gcry_err_code_t AF_merge (const gcry_md_spec_t * hash, grub_uint8_t * src,
+			  grub_uint8_t * dst, grub_size_t blocksize,
+			  grub_size_t blocknumbers);
+
+static grub_cryptodisk_t
+configure_ciphers (grub_disk_t disk, const char *check_uuid,
+		   int check_boot)
+{
+  grub_cryptodisk_t newdev;
+  const char *iptr;
+  struct grub_luks_phdr header;
+  char *optr;
+  char uuid[sizeof (header.uuid) + 1];
+  char ciphername[sizeof (header.cipherName) + 1];
+  char ciphermode[sizeof (header.cipherMode) + 1];
+  char *cipheriv = NULL;
+  char hashspec[sizeof (header.hashSpec) + 1];
+  grub_crypto_cipher_handle_t cipher = NULL, secondary_cipher = NULL;
+  grub_crypto_cipher_handle_t essiv_cipher = NULL;
+  const gcry_md_spec_t *hash = NULL, *essiv_hash = NULL;
+  const struct gcry_cipher_spec *ciph;
+  grub_cryptodisk_mode_t mode;
+  grub_cryptodisk_mode_iv_t mode_iv;
+  int benbi_log = 0;
+  grub_err_t err;
+
+  if (check_boot)
+    return NULL;
+
+  /* Read the LUKS header.  */
+  err = grub_disk_read (disk, 0, 0, sizeof (header), &header);
+  if (err)
+    {
+      if (err == GRUB_ERR_OUT_OF_RANGE)
+	grub_errno = GRUB_ERR_NONE;
+      return NULL;
+    }
+
+  /* Look for LUKS magic sequence.  */
+  if (grub_memcmp (header.magic, LUKS_MAGIC, sizeof (header.magic))
+      || grub_be_to_cpu16 (header.version) != 1)
+    return NULL;
+
+  optr = uuid;
+  for (iptr = header.uuid; iptr < &header.uuid[ARRAY_SIZE (header.uuid)];
+       iptr++)
+    {
+      if (*iptr != '-')
+	*optr++ = *iptr;
+    }
+  *optr = 0;
+
+  if (check_uuid && grub_strcasecmp (check_uuid, uuid) != 0)
+    {
+      grub_dprintf ("luks", "%s != %s\n", uuid, check_uuid);
+      return NULL;
+    }
+
+  /* Make sure that strings are null terminated.  */
+  grub_memcpy (ciphername, header.cipherName, sizeof (header.cipherName));
+  ciphername[sizeof (header.cipherName)] = 0;
+  grub_memcpy (ciphermode, header.cipherMode, sizeof (header.cipherMode));
+  ciphermode[sizeof (header.cipherMode)] = 0;
+  grub_memcpy (hashspec, header.hashSpec, sizeof (header.hashSpec));
+  hashspec[sizeof (header.hashSpec)] = 0;
+
+  ciph = grub_crypto_lookup_cipher_by_name (ciphername);
+  if (!ciph)
+    {
+      grub_error (GRUB_ERR_FILE_NOT_FOUND, "Cipher %s isn't available",
+		  ciphername);
+      return NULL;
+    }
+
+  /* Configure the cipher used for the bulk data.  */
+  cipher = grub_crypto_cipher_open (ciph);
+  if (!cipher)
+    return NULL;
+
+  if (grub_be_to_cpu32 (header.keyBytes) > 1024)
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid keysize %d",
+		  grub_be_to_cpu32 (header.keyBytes));
+      return NULL;
+    }
+
+  /* Configure the cipher mode.  */
+  if (grub_strcmp (ciphermode, "ecb") == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_ECB;
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_PLAIN;
+      cipheriv = NULL;
+    }
+  else if (grub_strcmp (ciphermode, "plain") == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_CBC;
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_PLAIN;
+      cipheriv = NULL;
+    }
+  else if (grub_memcmp (ciphermode, "cbc-", sizeof ("cbc-") - 1) == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_CBC;
+      cipheriv = ciphermode + sizeof ("cbc-") - 1;
+    }
+  else if (grub_memcmp (ciphermode, "pcbc-", sizeof ("pcbc-") - 1) == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_PCBC;
+      cipheriv = ciphermode + sizeof ("pcbc-") - 1;
+    }
+  else if (grub_memcmp (ciphermode, "xts-", sizeof ("xts-") - 1) == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_XTS;
+      cipheriv = ciphermode + sizeof ("xts-") - 1;
+      secondary_cipher = grub_crypto_cipher_open (ciph);
+      if (!secondary_cipher)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  return NULL;
+	}
+      if (cipher->cipher->blocksize != GRUB_CRYPTODISK_GF_BYTES)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  grub_error (GRUB_ERR_BAD_ARGUMENT, "Unsupported XTS block size: %d",
+		      cipher->cipher->blocksize);
+	  return NULL;
+	}
+      if (secondary_cipher->cipher->blocksize != GRUB_CRYPTODISK_GF_BYTES)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  grub_error (GRUB_ERR_BAD_ARGUMENT, "Unsupported XTS block size: %d",
+		      secondary_cipher->cipher->blocksize);
+	  return NULL;
+	}
+    }
+  else if (grub_memcmp (ciphermode, "lrw-", sizeof ("lrw-") - 1) == 0)
+    {
+      mode = GRUB_CRYPTODISK_MODE_LRW;
+      cipheriv = ciphermode + sizeof ("lrw-") - 1;
+      if (cipher->cipher->blocksize != GRUB_CRYPTODISK_GF_BYTES)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  grub_error (GRUB_ERR_BAD_ARGUMENT, "Unsupported LRW block size: %d",
+		      cipher->cipher->blocksize);
+	  return NULL;
+	}
+    }
+  else
+    {
+      grub_crypto_cipher_close (cipher);
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "Unknown cipher mode: %s",
+		  ciphermode);
+      return NULL;
+    }
+
+  if (cipheriv == NULL);
+  else if (grub_memcmp (cipheriv, "plain", sizeof ("plain") - 1) == 0)
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_PLAIN;
+  else if (grub_memcmp (cipheriv, "plain64", sizeof ("plain64") - 1) == 0)
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_PLAIN64;
+  else if (grub_memcmp (cipheriv, "benbi", sizeof ("benbi") - 1) == 0)
+    {
+      if (cipher->cipher->blocksize & (cipher->cipher->blocksize - 1)
+	  || cipher->cipher->blocksize == 0)
+	grub_error (GRUB_ERR_BAD_ARGUMENT, "Unsupported benbi blocksize: %d",
+		    cipher->cipher->blocksize);
+      for (benbi_log = 0; 
+	   (cipher->cipher->blocksize << benbi_log) < GRUB_DISK_SECTOR_SIZE;
+	   benbi_log++);
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_BENBI;
+    }
+  else if (grub_memcmp (cipheriv, "null", sizeof ("null") - 1) == 0)
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_NULL;
+  else if (grub_memcmp (cipheriv, "essiv:", sizeof ("essiv:") - 1) == 0)
+    {
+      char *hash_str = cipheriv + 6;
+
+      mode_iv = GRUB_CRYPTODISK_MODE_IV_ESSIV;
+
+      /* Configure the hash and cipher used for ESSIV.  */
+      essiv_hash = grub_crypto_lookup_md_by_name (hash_str);
+      if (!essiv_hash)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  grub_error (GRUB_ERR_FILE_NOT_FOUND,
+		      "Couldn't load %s hash", hash_str);
+	  return NULL;
+	}
+      essiv_cipher = grub_crypto_cipher_open (ciph);
+      if (!essiv_cipher)
+	{
+	  grub_crypto_cipher_close (cipher);
+	  return NULL;
+	}
+    }
+  else
+    {
+      grub_crypto_cipher_close (cipher);
+      grub_error (GRUB_ERR_BAD_ARGUMENT, "Unknown IV mode: %s",
+		  cipheriv);
+      return NULL;
+    }
+
+  /* Configure the hash used for the AF splitter and HMAC.  */
+  hash = grub_crypto_lookup_md_by_name (hashspec);
+  if (!hash)
+    {
+      grub_crypto_cipher_close (cipher);
+      grub_crypto_cipher_close (essiv_cipher);
+      grub_crypto_cipher_close (secondary_cipher);
+      grub_error (GRUB_ERR_FILE_NOT_FOUND, "Couldn't load %s hash",
+		  hashspec);
+      return NULL;
+    }
+
+  newdev = grub_zalloc (sizeof (struct grub_cryptodisk));
+  if (!newdev)
+    return NULL;
+  newdev->cipher = cipher;
+  newdev->offset = grub_be_to_cpu32 (header.payloadOffset);
+  newdev->source_disk = NULL;
+  newdev->benbi_log = benbi_log;
+  newdev->mode = mode;
+  newdev->mode_iv = mode_iv;
+  newdev->secondary_cipher = secondary_cipher;
+  newdev->essiv_cipher = essiv_cipher;
+  newdev->essiv_hash = essiv_hash;
+  newdev->hash = hash;
+  newdev->log_sector_size = 9;
+  newdev->total_length = grub_disk_get_size (disk) - newdev->offset;
+  grub_memcpy (newdev->uuid, uuid, sizeof (newdev->uuid));
+#ifdef GRUB_UTIL
+  newdev->modname = "luks";
+#endif
+  COMPILE_TIME_ASSERT (sizeof (newdev->uuid) >= sizeof (uuid));
+  return newdev;
+}
+
+static grub_err_t
+luks_recover_key (grub_disk_t source,
+		  grub_cryptodisk_t dev)
+{
+  struct grub_luks_phdr header;
+  grub_size_t keysize;
+  grub_uint8_t *split_key = NULL;
+  char passphrase[MAX_PASSPHRASE] = "";
+  grub_uint8_t candidate_digest[sizeof (header.mkDigest)];
+  unsigned i;
+  grub_size_t length;
+  grub_err_t err;
+  grub_size_t max_stripes = 1;
+  char *tmp;
+
+  err = grub_disk_read (source, 0, 0, sizeof (header), &header);
+  if (err)
+    return err;
+
+  grub_printf ("Attempting to decrypt master key...\n");
+  keysize = grub_be_to_cpu32 (header.keyBytes);
+
+  for (i = 0; i < ARRAY_SIZE (header.keyblock); i++)
+    if (grub_be_to_cpu32 (header.keyblock[i].active) == LUKS_KEY_ENABLED
+	&& grub_be_to_cpu32 (header.keyblock[i].stripes) > max_stripes)
+      max_stripes = grub_be_to_cpu32 (header.keyblock[i].stripes);
+
+  split_key = grub_malloc (keysize * max_stripes);
+  if (!split_key)
+    return grub_errno;
+
+  /* Get the passphrase from the user.  */
+  tmp = NULL;
+  if (source->partition)
+    tmp = grub_partition_get_name (source->partition);
+  grub_printf ("Enter passphrase for %s%s%s (%s): ", source->name,
+	       source->partition ? "," : "", tmp ? : "",
+	       dev->uuid);
+  grub_free (tmp);
+  if (!grub_password_get (passphrase, MAX_PASSPHRASE))
+    {
+      grub_free (split_key);
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, "Passphrase not supplied");
+    }
+
+  /* Try to recover master key from each active keyslot.  */
+  for (i = 0; i < ARRAY_SIZE (header.keyblock); i++)
+    {
+      gcry_err_code_t gcry_err;
+      grub_uint8_t candidate_key[keysize];
+      grub_uint8_t digest[keysize];
+
+      /* Check if keyslot is enabled.  */
+      if (grub_be_to_cpu32 (header.keyblock[i].active) != LUKS_KEY_ENABLED)
+	continue;
+
+      grub_dprintf ("luks", "Trying keyslot %d\n", i);
+
+      /* Calculate the PBKDF2 of the user supplied passphrase.  */
+      gcry_err = grub_crypto_pbkdf2 (dev->hash, (grub_uint8_t *) passphrase,
+				     grub_strlen (passphrase),
+				     header.keyblock[i].passwordSalt,
+				     sizeof (header.keyblock[i].passwordSalt),
+				     grub_be_to_cpu32 (header.keyblock[i].
+						       passwordIterations),
+				     digest, keysize);
+
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      grub_dprintf ("luks", "PBKDF2 done\n");
+
+      gcry_err = grub_cryptodisk_setkey (dev, digest, keysize); 
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      length = (keysize * grub_be_to_cpu32 (header.keyblock[i].stripes));
+
+      /* Read and decrypt the key material from the disk.  */
+      err = grub_disk_read (source,
+			    grub_be_to_cpu32 (header.keyblock
+					      [i].keyMaterialOffset), 0,
+			    length, split_key);
+      if (err)
+	{
+	  grub_free (split_key);
+	  return err;
+	}
+
+      gcry_err = grub_cryptodisk_decrypt (dev, split_key, length, 0);
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      /* Merge the decrypted key material to get the candidate master key.  */
+      gcry_err = AF_merge (dev->hash, split_key, candidate_key, keysize,
+			   grub_be_to_cpu32 (header.keyblock[i].stripes));
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      grub_dprintf ("luks", "candidate key recovered\n");
+
+      /* Calculate the PBKDF2 of the candidate master key.  */
+      gcry_err = grub_crypto_pbkdf2 (dev->hash, candidate_key,
+				     grub_be_to_cpu32 (header.keyBytes),
+				     header.mkDigestSalt,
+				     sizeof (header.mkDigestSalt),
+				     grub_be_to_cpu32
+				     (header.mkDigestIterations),
+				     candidate_digest,
+				     sizeof (candidate_digest));
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      /* Compare the calculated PBKDF2 to the digest stored
+         in the header to see if it's correct.  */
+      if (grub_memcmp (candidate_digest, header.mkDigest,
+		       sizeof (header.mkDigest)) != 0)
+	{
+	  grub_dprintf ("luks", "bad digest\n");
+	  continue;
+	}
+
+      grub_printf ("Slot %d opened\n", i);
+
+      /* Set the master key.  */
+      gcry_err = grub_cryptodisk_setkey (dev, candidate_key, keysize); 
+      if (gcry_err)
+	{
+	  grub_free (split_key);
+	  return grub_crypto_gcry_error (gcry_err);
+	}
+
+      grub_free (split_key);
+
+      return GRUB_ERR_NONE;
+    }
+
+  return GRUB_ACCESS_DENIED;
+}
+
+struct grub_cryptodisk_dev luks_crypto = {
+  .scan = configure_ciphers,
+  .recover_key = luks_recover_key
+};
+
+GRUB_MOD_INIT (luks)
+{
+  COMPILE_TIME_ASSERT (sizeof (((struct grub_luks_phdr *) 0)->uuid)
+		       < GRUB_CRYPTODISK_MAX_UUID_LENGTH);
+  grub_cryptodisk_dev_register (&luks_crypto);
+}
+
+GRUB_MOD_FINI (luks)
+{
+  grub_cryptodisk_dev_unregister (&luks_crypto);
+}

grub-core/kern/emu/getroot.c

@@ -33,6 +33,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <grub/util/misc.h>
+#include <grub/cryptodisk.h>
 
 #ifdef HAVE_DEVICE_MAPPER
 # include <libdevmapper.h>
@@ -698,58 +699,189 @@ grub_util_open_dm (const char *os_dev, struct dm_tree **tree,
 
 #endif
 
-static int
+static char *
-grub_util_is_lvm (const char *os_dev)
+get_dm_uuid (const char *os_dev)
 {
   if ((strncmp ("/dev/mapper/", os_dev, 12) != 0))
-    return 0;
+    return NULL;
   
 #ifdef HAVE_DEVICE_MAPPER
   {
-    const char *node_uuid;
     struct dm_tree *tree;
     struct dm_tree_node *node;
+    const char *node_uuid;
+    char *ret;
 
     if (!grub_util_open_dm (os_dev, &tree, &node))
-      return 0;
+      return NULL;
 
     node_uuid = dm_tree_node_get_uuid (node);
     if (! node_uuid)
       {
 	grub_dprintf ("hostdisk", "%s has no DM uuid\n", os_dev);
 	dm_tree_free (tree);
-	return 0;
+	return NULL;
       }
-    if (strncmp (node_uuid, "LVM-", 4) != 0)
+
-      {
+    ret = grub_strdup (node_uuid);
+
     dm_tree_free (tree);
-	return 0;
+
+    return ret;
   }
-    dm_tree_free (tree);
+#endif
-    return 1;
+
-  }
+  return NULL;
-#else
-  return 1;
-#endif /* HAVE_DEVICE_MAPPER */
 }
 
+static enum grub_dev_abstraction_types
+grub_util_get_dm_abstraction (const char *os_dev)
+{
+#ifdef HAVE_DEVICE_MAPPER
+  char *uuid;
+
+  uuid = get_dm_uuid (os_dev);
+
+  if (uuid == NULL)
+    return GRUB_DEV_ABSTRACTION_NONE;
+
+  if (strncmp (uuid, "LVM-", 4) == 0)
+    {
+      grub_free (uuid);
+      return GRUB_DEV_ABSTRACTION_LVM;
+    }
+  if (strncmp (uuid, "CRYPT-LUKS1-", 4) == 0)
+    {
+      grub_free (uuid);
+      return GRUB_DEV_ABSTRACTION_LUKS;
+    }
+
+  grub_free (uuid);
+  return GRUB_DEV_ABSTRACTION_NONE;
+#else
+  if ((strncmp ("/dev/mapper/", os_dev, 12) != 0))
+    return GRUB_DEV_ABSTRACTION_NONE;
+  return GRUB_DEV_ABSTRACTION_LVM;  
+#endif
+}
+
+#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
+#include <libgeom.h>
+
+/* FIXME: geom actually gives us the whole container hierarchy.
+   It can be used more efficiently than this.  */
+void
+grub_util_follow_gpart_up (const char *name, grub_disk_addr_t *off_out, char **name_out)
+{
+  struct gmesh mesh;
+  struct gclass *class;
+  int error;
+  struct ggeom *geom;
+
+  grub_util_info ("following geom '%s'", name);
+
+  error = geom_gettree (&mesh);
+  if (error != 0)
+    grub_util_error ("couldn't open geom");
+
+  LIST_FOREACH (class, &mesh.lg_class, lg_class)
+    if (strcasecmp (class->lg_name, "part") == 0)
+      break;
+  if (!class)
+    grub_util_error ("couldn't open geom part");
+
+  LIST_FOREACH (geom, &class->lg_geom, lg_geom)
+    { 
+      struct gprovider *provider;
+      LIST_FOREACH (provider, &geom->lg_provider, lg_provider)
+	if (strcmp (provider->lg_name, name) == 0)
+	  {
+	    char *name_tmp = xstrdup (geom->lg_name);
+	    grub_disk_addr_t off = 0;
+	    struct gconfig *config;
+	    grub_util_info ("geom '%s' has parent '%s'", name, geom->lg_name);
+
+	    grub_util_follow_gpart_up (name_tmp, &off, name_out);
+	    free (name_tmp);
+	    LIST_FOREACH (config, &provider->lg_config, lg_config)
+	      if (strcasecmp (config->lg_name, "start") == 0)
+		off += strtoull (config->lg_val, 0, 10);
+	    if (off_out)
+	      *off_out = off;
+	    return;
+	  }
+    }
+  grub_util_info ("geom '%s' has no parent", name);
+  if (name_out)
+    *name_out = xstrdup (name);
+  if (off_out)
+    *off_out = 0;
+}
+
+static const char *
+grub_util_get_geom_abstraction (const char *dev)
+{
+  char *whole;
+  struct gmesh mesh;
+  struct gclass *class;
+  const char *name;
+  int error;
+
+  if (strncmp (dev, "/dev/", sizeof ("/dev/") - 1) != 0)
+    return 0;
+  name = dev + sizeof ("/dev/") - 1;
+  grub_util_follow_gpart_up (name, NULL, &whole);
+
+  grub_util_info ("following geom '%s'", name);
+
+  error = geom_gettree (&mesh);
+  if (error != 0)
+    grub_util_error ("couldn't open geom");
+
+  LIST_FOREACH (class, &mesh.lg_class, lg_class)
+    {
+      struct ggeom *geom;
+      LIST_FOREACH (geom, &class->lg_geom, lg_geom)
+	{ 
+	  struct gprovider *provider;
+	  LIST_FOREACH (provider, &geom->lg_provider, lg_provider)
+	    if (strcmp (provider->lg_name, name) == 0)
+	      return class->lg_name;
+	}
+    }
+  return NULL;
+}
+#endif
+
 int
 grub_util_get_dev_abstraction (const char *os_dev __attribute__((unused)))
 {
 #ifdef __linux__
+  enum grub_dev_abstraction_types ret;
+
   /* User explicitly claims that this drive is visible by BIOS.  */
   if (grub_util_biosdisk_is_present (os_dev))
     return GRUB_DEV_ABSTRACTION_NONE;
 
-  /* Check for LVM.  */
+  /* Check for LVM and LUKS.  */
-  if (grub_util_is_lvm (os_dev))
+  ret = grub_util_get_dm_abstraction (os_dev);
-    return GRUB_DEV_ABSTRACTION_LVM;
+
+  if (ret != GRUB_DEV_ABSTRACTION_NONE)
+    return ret;
 
   /* Check for RAID.  */
   if (!strncmp (os_dev, "/dev/md", 7) && ! grub_util_device_is_mapped (os_dev))
     return GRUB_DEV_ABSTRACTION_RAID;
 #endif
 
+#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
+  const char *abs;
+  abs = grub_util_get_geom_abstraction (os_dev);
+  grub_util_info ("abstraction of %s is %s", os_dev, abs);
+  if (abs && grub_strcasecmp (abs, "eli") == 0)
+    return GRUB_DEV_ABSTRACTION_GELI;
+#endif
+
   /* No abstraction found.  */
   return GRUB_DEV_ABSTRACTION_NONE;
 }
@@ -838,15 +970,84 @@ out:
 void
 grub_util_pull_device (const char *os_dev)
 {
-  switch (grub_util_get_dev_abstraction (os_dev))
+  int ab;
+  ab = grub_util_get_dev_abstraction (os_dev);
+  switch (ab)
     {
+    case GRUB_DEV_ABSTRACTION_GELI:
+      {
+	char *whole;
+	struct gmesh mesh;
+	struct gclass *class;
+	const char *name;
+	int error;
+	char *lastsubdev = NULL;
+
+	if (strncmp (os_dev, "/dev/", sizeof ("/dev/") - 1) != 0)
+	  return;
+	name = os_dev + sizeof ("/dev/") - 1;
+	grub_util_follow_gpart_up (name, NULL, &whole);
+
+	grub_util_info ("following geom '%s'", name);
+
+	error = geom_gettree (&mesh);
+	if (error != 0)
+	  grub_util_error ("couldn't open geom");
+
+	LIST_FOREACH (class, &mesh.lg_class, lg_class)
+	  {
+	    struct ggeom *geom;
+	    LIST_FOREACH (geom, &class->lg_geom, lg_geom)
+	      { 
+		struct gprovider *provider;
+		LIST_FOREACH (provider, &geom->lg_provider, lg_provider)
+		  if (strcmp (provider->lg_name, name) == 0)
+		    {
+		      struct gconsumer *consumer;
+		      char *fname;
+		      char *uuid;
+
+		      LIST_FOREACH (consumer, &geom->lg_consumer, lg_consumer)
+			break;
+		      if (!consumer)
+			grub_util_error ("couldn't find geli consumer");
+		      fname = xasprintf ("/dev/%s", consumer->lg_provider->lg_name);
+		      grub_util_info ("consumer %s", consumer->lg_provider->lg_name);
+		      lastsubdev = consumer->lg_provider->lg_name;
+		      grub_util_pull_device (fname);
+		      free (fname);
+		    }
+	      }
+	  }
+	if (ab == GRUB_DEV_ABSTRACTION_GELI && lastsubdev)
+	  {
+	    char *fname = xasprintf ("/dev/%s", lastsubdev);
+	    char *grdev = grub_util_get_grub_dev (fname);
+	    free (fname);
+
+	    if (grdev)
+	      {
+		grub_err_t err;
+		err = grub_cryptodisk_cheat_mount (grdev, os_dev);
+		if (err)
+		  grub_util_error ("Can't mount crypto: %s", grub_errmsg);
+	      }
+
+	    grub_free (grdev);
+	  }
+
+      }
+      break;
+
     case GRUB_DEV_ABSTRACTION_LVM:
+    case GRUB_DEV_ABSTRACTION_LUKS:
 #ifdef HAVE_DEVICE_MAPPER
       {
 	struct dm_tree *tree;
 	struct dm_tree_node *node;
 	struct dm_tree_node *child;
 	void *handle = NULL;
+	char *lastsubdev = NULL;
 
 	if (!grub_util_open_dm (os_dev, &tree, &node))
 	  return;
@@ -859,8 +1060,25 @@ grub_util_pull_device (const char *os_dev)
 	      continue;
 	    subdev = grub_find_device ("/dev", makedev (dm->major, dm->minor));
 	    if (subdev)
+	      {
+		lastsubdev = subdev;
 		grub_util_pull_device (subdev);
 	      }
+	  }
+	if (ab == GRUB_DEV_ABSTRACTION_CRYPTO && lastsubdev)
+	  {
+	    char *grdev = grub_util_get_grub_dev (lastsubdev);
+	    dm_tree_free (tree);
+	    if (grdev)
+	      {
+		grub_err_t err;
+		err = grub_luks_cheat_mount (grdev, os_dev);
+		if (err)
+		  grub_util_error ("Can't mount crypto: %s", grub_errmsg);
+	      }
+	    grub_free (grdev);
+	  }
+	else
 	  dm_tree_free (tree);
       }
 #endif
@@ -907,6 +1125,70 @@ grub_util_get_grub_dev (const char *os_dev)
 
       break;
 
+    case GRUB_DEV_ABSTRACTION_LUKS:
+      {
+	char *uuid, *dash;
+	uuid = get_dm_uuid (os_dev);
+	if (!uuid)
+	  break;
+	dash = grub_strchr (uuid + sizeof ("CRYPT-LUKS1-") - 1, '-');
+	if (dash)
+	  *dash = 0;
+	grub_dev = grub_xasprintf ("cryptouuid/%s",
+				   uuid + sizeof ("CRYPT-LUKS1-") - 1);
+	grub_free (uuid);
+      }
+      break;
+
+    case GRUB_DEV_ABSTRACTION_GELI:
+      {
+	char *whole;
+	struct gmesh mesh;
+	struct gclass *class;
+	const char *name;
+	int error;
+
+	if (strncmp (os_dev, "/dev/", sizeof ("/dev/") - 1) != 0)
+	  return 0;
+	name = os_dev + sizeof ("/dev/") - 1;
+	grub_util_follow_gpart_up (name, NULL, &whole);
+
+	grub_util_info ("following geom '%s'", name);
+
+	error = geom_gettree (&mesh);
+	if (error != 0)
+	  grub_util_error ("couldn't open geom");
+
+	LIST_FOREACH (class, &mesh.lg_class, lg_class)
+	  {
+	    struct ggeom *geom;
+	    LIST_FOREACH (geom, &class->lg_geom, lg_geom)
+	      { 
+		struct gprovider *provider;
+		LIST_FOREACH (provider, &geom->lg_provider, lg_provider)
+		  if (strcmp (provider->lg_name, name) == 0)
+		    {
+		      struct gconsumer *consumer;
+		      char *fname;
+		      char *uuid;
+
+		      LIST_FOREACH (consumer, &geom->lg_consumer, lg_consumer)
+			break;
+		      if (!consumer)
+			grub_util_error ("couldn't find geli consumer");
+		      fname = xasprintf ("/dev/%s", consumer->lg_provider->lg_name);
+		      uuid = grub_util_get_geli_uuid (fname);
+		      if (!uuid)
+			grub_util_error ("couldn't retrieve geli UUID");
+		      grub_dev = xasprintf ("cryptouuid/%s", uuid);
+		      free (fname);
+		      free (uuid);
+		    }
+	      }
+	  }
+      }
+      break;
+
     case GRUB_DEV_ABSTRACTION_RAID:
 
       if (os_dev[7] == '_' && os_dev[8] == 'd')

grub-core/kern/emu/hostdisk.c

@@ -106,9 +106,7 @@ struct hd_geometry
 # include <libdevmapper.h>
 #endif
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if defined(__NetBSD__)
-#include <libgeom.h>
-#elif defined(__NetBSD__)
 # define HAVE_DIOCGDINFO
 # include <sys/ioctl.h>
 # include <sys/disklabel.h>    /* struct disklabel */
@@ -226,6 +224,82 @@ grub_util_biosdisk_iterate (int (*hook) (const char *name),
   return 0;
 }
 
+#if !defined(__MINGW32__)
+grub_uint64_t
+grub_util_get_fd_sectors (int fd, unsigned *log_secsize)
+{
+#if defined(__linux__) || defined(__CYGWIN__) || defined(__FreeBSD__) || \
+  defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__)
+# if defined(__NetBSD__)
+  struct disklabel label;
+# else
+  unsigned long long nr;
+# endif
+  unsigned sector_size, log_sector_size;
+  struct stat st;
+
+  if (fstat (fd, &st) < 0)
+    grub_util_error ("fstat failed");
+
+# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__)
+  if (! S_ISCHR (st.st_mode))
+# else
+  if (! S_ISBLK (st.st_mode))
+# endif
+    goto fail;
+
+# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+    if (ioctl (fd, DIOCGMEDIASIZE, &nr))
+# elif defined(__APPLE__)
+    if (ioctl (fd, DKIOCGETBLOCKCOUNT, &nr))
+# elif defined(__NetBSD__)
+    configure_device_driver (fd);
+    if (ioctl (fd, DIOCGDINFO, &label) == -1)
+# else
+    if (ioctl (fd, BLKGETSIZE64, &nr))
+# endif
+      goto fail;
+
+# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+    if (ioctl (fd, DIOCGSECTORSIZE, &sector_size))
+# else
+    if (ioctl (fd, BLKSSZGET, &sector_size))
+# endif
+      goto fail;
+
+    if (sector_size & (sector_size - 1) || !sector_size)
+      goto fail;
+    for (log_sector_size = 0;
+	 (1 << log_sector_size) < sector_size;
+	 log_sector_size++);
+
+    if (log_secsize)
+      *log_secsize = log_sector_size;
+
+# if defined (__APPLE__)
+    return nr;
+# elif defined(__NetBSD__)
+    return label.d_secperunit;
+# else
+    if (nr & ((1 << log_sector_size) - 1))
+      grub_util_error ("unaligned device size");
+
+    return (nr >> log_sector_size);
+# endif
+
+ fail:
+  /* In GNU/Hurd, stat() will return the right size.  */
+#elif !defined (__GNU__)
+# warning "No special routine to get the size of a block device is implemented for your OS. This is not possibly fatal."
+#endif
+
+  if (log_secsize)
+   *log_secsize = 9;
+
+  return st.st_size >> 9;
+}
+#endif
+
 static grub_err_t
 grub_util_biosdisk_open (const char *name, grub_disk_t disk)
 {
@@ -261,90 +335,30 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk)
 
     return GRUB_ERR_NONE;
   }
-#elif defined(__linux__) || defined(__CYGWIN__) || defined(__FreeBSD__) || \
+#else
-      defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__)
   {
-# if defined(__NetBSD__)
-    struct disklabel label;
-# else
-    unsigned long long nr;
-# endif
-    int sector_size;
     int fd;
 
     fd = open (map[drive].device, O_RDONLY);
     if (fd == -1)
       return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "cannot open `%s' while attempting to get disk size", map[drive].device);
 
+    disk->total_sectors = grub_util_get_fd_sectors (fd, &disk->log_sector_size);
+
 # if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__)
     if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode))
 # else
     if (fstat (fd, &st) < 0 || ! S_ISBLK (st.st_mode))
 # endif
-      {
-	close (fd);
-	goto fail;
-      }
       data->is_disk = 1;
 
-# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-    if (ioctl (fd, DIOCGMEDIASIZE, &nr))
-# elif defined(__APPLE__)
-    if (ioctl (fd, DKIOCGETBLOCKCOUNT, &nr))
-# elif defined(__NetBSD__)
-    configure_device_driver (fd);
-    if (ioctl (fd, DIOCGDINFO, &label) == -1)
-# else
-    if (ioctl (fd, BLKGETSIZE64, &nr))
-# endif
-      {
     close (fd);
-	goto fail;
-      }
-
-    if (ioctl (fd, BLKSSZGET, &sector_size))
-       {
-         close (fd);
-	 goto fail;
-       }
-
-    close (fd);
-
-    if (sector_size & (sector_size - 1) || !sector_size)
-      goto fail;
-    for (disk->log_sector_size = 0;
-	 (1 << disk->log_sector_size) < sector_size;
-	 disk->log_sector_size++);
-
-# if defined (__APPLE__)
-    disk->total_sectors = nr;
-# elif defined(__NetBSD__)
-    disk->total_sectors = label.d_secperunit;
-# else
-    disk->total_sectors = nr >> disk->log_sector_size;
-
-    if (nr & ((1 << disk->log_sector_size) - 1))
-      grub_util_error ("unaligned device size");
-# endif
 
     grub_util_info ("the size of %s is %llu", name, disk->total_sectors);
 
     return GRUB_ERR_NONE;
   }
-
- fail:
-  /* In GNU/Hurd, stat() will return the right size.  */
-#elif !defined (__GNU__)
-# warning "No special routine to get the size of a block device is implemented for your OS. This is not possibly fatal."
 #endif
-  if (stat (map[drive].device, &st) < 0)
-    return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "cannot stat `%s'", map[drive].device);
-
-  disk->total_sectors = st.st_size >> disk->log_sector_size;
-
-  grub_util_info ("the size of %s is %lu", name, disk->total_sectors);
-
-  return GRUB_ERR_NONE;
 }
 
 int
@@ -366,55 +380,6 @@ grub_util_device_is_mapped (const char *dev)
 }
 
 #if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
-/* FIXME: geom actually gives us the whole container hierarchy.
-   It can be used more efficiently than this.  */
-static void
-follow_geom_up (const char *name, grub_disk_addr_t *off_out, char **name_out)
-{
-  struct gmesh mesh;
-  struct gclass *class;
-  int error;
-  struct ggeom *geom;
-
-  grub_util_info ("following geom '%s'", name);
-
-  error = geom_gettree (&mesh);
-  if (error != 0)
-    grub_util_error ("couldn't open geom");
-
-  LIST_FOREACH (class, &mesh.lg_class, lg_class)
-    if (strcasecmp (class->lg_name, "part") == 0)
-      break;
-  if (!class)
-    grub_util_error ("couldn't open geom part");
-
-  LIST_FOREACH (geom, &class->lg_geom, lg_geom)
-    { 
-      struct gprovider *provider;
-      LIST_FOREACH (provider, &geom->lg_provider, lg_provider)
-	if (strcmp (provider->lg_name, name) == 0)
-	  {
-	    char *name_tmp = xstrdup (geom->lg_name);
-	    grub_disk_addr_t off = 0;
-	    struct gconfig *config;
-	    grub_util_info ("geom '%s' has parent '%s'", name, geom->lg_name);
-
-	    follow_geom_up (name_tmp, &off, name_out);
-	    free (name_tmp);
-	    LIST_FOREACH (config, &provider->lg_config, lg_config)
-	      if (strcasecmp (config->lg_name, "start") == 0)
-		off += strtoull (config->lg_val, 0, 10);
-	    if (off_out)
-	      *off_out = off;
-	    return;
-	  }
-    }
-  grub_util_info ("geom '%s' has no parent", name);
-  if (name_out)
-    *name_out = xstrdup (name);
-  if (off_out)
-    *off_out = 0;
-}
 
 static grub_disk_addr_t
 find_partition_start (const char *dev)
@@ -422,10 +387,11 @@ find_partition_start (const char *dev)
   grub_disk_addr_t out;
   if (strncmp (dev, "/dev/", sizeof ("/dev/") - 1) != 0)
     return 0;
-  follow_geom_up (dev + sizeof ("/dev/") - 1, &out, NULL);
+  grub_util_follow_gpart_up (dev + sizeof ("/dev/") - 1, &out, NULL);
 
   return out;
 }
+
 #elif defined(__linux__) || defined(__CYGWIN__) || defined(HAVE_DIOCGDINFO)
 static grub_disk_addr_t
 find_partition_start (const char *dev)
@@ -657,6 +623,37 @@ linux_find_partition (char *dev, grub_disk_addr_t sector)
 }
 #endif /* __linux__ */
 
+#if defined(__linux__) && (!defined(__GLIBC__) || \
+        ((__GLIBC__ < 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 1))))
+  /* Maybe libc doesn't have large file support.  */
+grub_err_t
+grub_util_fd_seek (int fd, const char *name, grub_uint64_t off)
+{
+  loff_t offset, result;
+  static int _llseek (uint filedes, ulong hi, ulong lo,
+		      loff_t *res, uint wh);
+  _syscall5 (int, _llseek, uint, filedes, ulong, hi, ulong, lo,
+	     loff_t *, res, uint, wh);
+
+  offset = (loff_t) off;
+  if (_llseek (fd, offset >> 32, offset & 0xffffffff, &result, SEEK_SET))
+    {
+      return grub_error (GRUB_ERR_BAD_DEVICE, "cannot seek `%s'", name);
+    }
+  return GRUB_ERR_NONE;
+}
+#else
+grub_err_t
+grub_util_fd_seek (int fd, const char *name, grub_uint64_t off)
+{
+  off_t offset = (off_t) off;
+
+  if (lseek (fd, offset, SEEK_SET) != offset)
+    return grub_error (GRUB_ERR_BAD_DEVICE, "cannot seek `%s'", name);
+  return 0;
+}
+#endif
+
 static int
 open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
 {
@@ -809,44 +806,20 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
   configure_device_driver (fd);
 #endif /* defined(__NetBSD__) */
 
-#if defined(__linux__) && (!defined(__GLIBC__) || \
+  if (grub_util_fd_seek (fd, map[disk->id].device,
-        ((__GLIBC__ < 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 1))))
+			 sector << disk->log_sector_size))
-  /* Maybe libc doesn't have large file support.  */
     {
-    loff_t offset, result;
-    static int _llseek (uint filedes, ulong hi, ulong lo,
-                        loff_t *res, uint wh);
-    _syscall5 (int, _llseek, uint, filedes, ulong, hi, ulong, lo,
-               loff_t *, res, uint, wh);
-
-    offset = (loff_t) sector << disk->log_sector_size;
-    if (_llseek (fd, offset >> 32, offset & 0xffffffff, &result, SEEK_SET))
-      {
-	grub_error (GRUB_ERR_BAD_DEVICE, "cannot seek `%s'", map[disk->id].device);
       close (fd);
       return -1;
     }
-  }
-#else
-  {
-    off_t offset = (off_t) sector << disk->log_sector_size;
-
-    if (lseek (fd, offset, SEEK_SET) != offset)
-      {
-	grub_error (GRUB_ERR_BAD_DEVICE, "cannot seek `%s'", map[disk->id].device);
-	close (fd);
-	return -1;
-      }
-  }
-#endif
 
   return fd;
 }
 
 /* Read LEN bytes from FD in BUF. Return less than or equal to zero if an
    error occurs, otherwise return LEN.  */
-static ssize_t
+ssize_t
-nread (int fd, char *buf, size_t len)
+grub_util_fd_read (int fd, char *buf, size_t len)
 {
   ssize_t size = len;
 
@@ -929,7 +902,7 @@ grub_util_biosdisk_read (grub_disk_t disk, grub_disk_addr_t sector,
 	 sectors that are read together with the MBR in one read.  It
 	 should only remap the MBR, so we split the read in two
 	 parts. -jochen  */
-      if (nread (fd, buf, (1 << disk->log_sector_size))
+      if (grub_util_fd_read (fd, buf, (1 << disk->log_sector_size))
 	  != (1 << disk->log_sector_size))
 	{
 	  grub_error (GRUB_ERR_READ_ERROR, "cannot read `%s'", map[disk->id].device);
@@ -941,7 +914,7 @@ grub_util_biosdisk_read (grub_disk_t disk, grub_disk_addr_t sector,
     }
 #endif /* __linux__ */
 
-  if (nread (fd, buf, size << disk->log_sector_size)
+  if (grub_util_fd_read (fd, buf, size << disk->log_sector_size)
       != (ssize_t) (size << disk->log_sector_size))
     grub_error (GRUB_ERR_READ_ERROR, "cannot read from `%s'", map[disk->id].device);
 
@@ -1516,7 +1489,7 @@ devmapper_out:
   char *out, *out2;
   if (strncmp (os_dev, "/dev/", sizeof ("/dev/") - 1) != 0)
     return xstrdup (os_dev);
-  follow_geom_up (os_dev + sizeof ("/dev/") - 1, NULL, &out);
+  grub_util_follow_gpart_up (os_dev + sizeof ("/dev/") - 1, NULL, &out);
 
   out2 = xasprintf ("/dev/%s", out);
   free (out);
@@ -1675,6 +1648,8 @@ grub_util_biosdisk_get_grub_dev (const char *os_dev)
   struct stat st;
   int drive;
 
+  grub_util_info ("Looking for %s", os_dev);
+
   if (stat (os_dev, &st) < 0)
     {
       grub_error (GRUB_ERR_BAD_DEVICE, "cannot stat `%s'", os_dev);

grub-core/lib/crypto.c

@@ -23,6 +23,13 @@
 #include <grub/term.h>
 #include <grub/dl.h>
 
+#ifdef GRUB_UTIL
+#include <termios.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#endif
+
 GRUB_MOD_LICENSE ("GPLv3+");
 
 struct grub_crypto_hmac_handle
@@ -186,9 +193,10 @@ grub_crypto_xor (void *out, const void *in1, const void *in2, grub_size_t size)
 
 gcry_err_code_t
 grub_crypto_ecb_decrypt (grub_crypto_cipher_handle_t cipher,
-			 void *out, void *in, grub_size_t size)
+			 void *out, const void *in, grub_size_t size)
 {
-  grub_uint8_t *inptr, *outptr, *end;
+  const grub_uint8_t *inptr;
+  grub_uint8_t *outptr, *end;
   if (!cipher->cipher->decrypt)
     return GPG_ERR_NOT_SUPPORTED;
   if (size % cipher->cipher->blocksize != 0)
@@ -242,10 +250,11 @@ grub_crypto_cbc_encrypt (grub_crypto_cipher_handle_t cipher,
 
 gcry_err_code_t
 grub_crypto_cbc_decrypt (grub_crypto_cipher_handle_t cipher,
-			 void *out, void *in, grub_size_t size,
+			 void *out, const void *in, grub_size_t size,
 			 void *iv)
 {
-  grub_uint8_t *inptr, *outptr, *end;
+  const grub_uint8_t *inptr;
+  grub_uint8_t *outptr, *end;
   grub_uint8_t ivt[cipher->cipher->blocksize];
   if (!cipher->cipher->decrypt)
     return GPG_ERR_NOT_SUPPORTED;
@@ -336,7 +345,8 @@ grub_crypto_hmac_init (const struct gcry_md_spec *md,
 }
 
 void
-grub_crypto_hmac_write (struct grub_crypto_hmac_handle *hnd, void *data,
+grub_crypto_hmac_write (struct grub_crypto_hmac_handle *hnd,
+			const void *data,
 			grub_size_t datalen)
 {
   hnd->md->write (hnd->ctx, data, datalen);
@@ -378,7 +388,7 @@ grub_crypto_hmac_fini (struct grub_crypto_hmac_handle *hnd, void *out)
 gcry_err_code_t
 grub_crypto_hmac_buffer (const struct gcry_md_spec *md,
 			 const void *key, grub_size_t keylen,
-			 void *data, grub_size_t datalen, void *out)
+			 const void *data, grub_size_t datalen, void *out)
 {
   struct grub_crypto_hmac_handle *hnd;
 
@@ -414,10 +424,43 @@ grub_crypto_memcmp (const void *a, const void *b, grub_size_t n)
   return !!counter;
 }
 
-#ifndef GRUB_MKPASSWD
 int
 grub_password_get (char buf[], unsigned buf_size)
 {
+#ifdef GRUB_UTIL
+  FILE *in;
+  struct termios s, t;
+  int tty_changed = 0;
+  char *ptr;
+
+  /* Disable echoing. Based on glibc.  */
+  in = fopen ("/dev/tty", "w+c");
+  if (in == NULL)
+    in = stdin;
+
+  if (tcgetattr (fileno (in), &t) == 0)
+    {
+      /* Save the old one. */
+      s = t;
+      /* Tricky, tricky. */
+      t.c_lflag &= ~(ECHO|ISIG);
+      tty_changed = (tcsetattr (fileno (in), TCSAFLUSH, &t) == 0);
+    }
+  else
+    tty_changed = 0;
+  fgets (buf, buf_size, stdin);
+  ptr = buf + strlen (buf) - 1;
+  while (buf <= ptr && (*ptr == '\n' || *ptr == '\r'))
+    *ptr-- = 0;
+  /* Restore the original setting.  */
+  if (tty_changed)
+    (void) tcsetattr (fileno (in), TCSAFLUSH, &s);
+
+  grub_xputs ("\n");
+  grub_refresh ();
+
+  return 1;
+#else
   unsigned cur_len = 0;
   int key;
 
@@ -452,5 +495,5 @@ grub_password_get (char buf[], unsigned buf_size)
   grub_refresh ();
 
   return (key != '\e');
-}
 #endif
+}

include/grub/crypto.h

@@ -126,6 +126,9 @@ typedef struct gcry_cipher_spec
   gcry_cipher_decrypt_t decrypt;
   gcry_cipher_stencrypt_t stencrypt;
   gcry_cipher_stdecrypt_t stdecrypt;
+#ifdef GRUB_UTIL
+  const char *modname;
+#endif
   struct gcry_cipher_spec *next;
 } gcry_cipher_spec_t;
 
@@ -161,6 +164,9 @@ typedef struct gcry_md_spec
   grub_size_t contextsize; /* allocate this amount of context */
   /* Block size, needed for HMAC.  */
   grub_size_t blocksize;
+#ifdef GRUB_UTIL
+  const char *modname;
+#endif
   struct gcry_md_spec *next;
 } gcry_md_spec_t;
 
@@ -193,7 +199,7 @@ grub_crypto_xor (void *out, const void *in1, const void *in2, grub_size_t size);
 
 gcry_err_code_t
 grub_crypto_ecb_decrypt (grub_crypto_cipher_handle_t cipher,
-			 void *out, void *in, grub_size_t size);
+			 void *out, const void *in, grub_size_t size);
 
 gcry_err_code_t
 grub_crypto_ecb_encrypt (grub_crypto_cipher_handle_t cipher,
@@ -204,7 +210,7 @@ grub_crypto_cbc_encrypt (grub_crypto_cipher_handle_t cipher,
 			 void *iv_in);
 gcry_err_code_t
 grub_crypto_cbc_decrypt (grub_crypto_cipher_handle_t cipher,
-			 void *out, void *in, grub_size_t size,
+			 void *out, const void *in, grub_size_t size,
 			 void *iv);
 void 
 grub_cipher_register (gcry_cipher_spec_t *cipher);
@@ -229,7 +235,8 @@ struct grub_crypto_hmac_handle *
 grub_crypto_hmac_init (const struct gcry_md_spec *md,
 		       const void *key, grub_size_t keylen);
 void
-grub_crypto_hmac_write (struct grub_crypto_hmac_handle *hnd, void *data,
+grub_crypto_hmac_write (struct grub_crypto_hmac_handle *hnd,
+			const void *data,
 			grub_size_t datalen);
 gcry_err_code_t
 grub_crypto_hmac_fini (struct grub_crypto_hmac_handle *hnd, void *out);
@@ -237,7 +244,7 @@ grub_crypto_hmac_fini (struct grub_crypto_hmac_handle *hnd, void *out);
 gcry_err_code_t
 grub_crypto_hmac_buffer (const struct gcry_md_spec *md,
 			 const void *key, grub_size_t keylen,
-			 void *data, grub_size_t datalen, void *out);
+			 const void *data, grub_size_t datalen, void *out);
 
 extern gcry_md_spec_t _gcry_digest_spec_md5;
 extern gcry_md_spec_t _gcry_digest_spec_sha1;
@@ -274,4 +281,10 @@ grub_password_get (char buf[], unsigned buf_size);
 
 extern void (*grub_crypto_autoload_hook) (const char *name);
 
+#ifdef GRUB_UTIL
+void grub_gcry_init_all (void);
+void grub_gcry_fini_all (void);
+#endif
+
+
 #endif

include/grub/cryptodisk.h

@@ -0,0 +1,147 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_CRYPTODISK_HEADER
+#define GRUB_CRYPTODISK_HEADER	1
+
+#include <grub/disk.h>
+#include <grub/crypto.h>
+#include <grub/list.h>
+
+typedef enum
+  {
+    GRUB_CRYPTODISK_MODE_ECB,
+    GRUB_CRYPTODISK_MODE_CBC,
+    GRUB_CRYPTODISK_MODE_PCBC,
+    GRUB_CRYPTODISK_MODE_XTS,
+    GRUB_CRYPTODISK_MODE_LRW
+  } grub_cryptodisk_mode_t;
+
+typedef enum
+  {
+    GRUB_CRYPTODISK_MODE_IV_NULL,
+    GRUB_CRYPTODISK_MODE_IV_PLAIN,
+    GRUB_CRYPTODISK_MODE_IV_PLAIN64,
+    GRUB_CRYPTODISK_MODE_IV_ESSIV,
+    GRUB_CRYPTODISK_MODE_IV_BENBI,
+    GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64,
+    GRUB_CRYPTODISK_MODE_IV_BYTECOUNT64_HASH
+  } grub_cryptodisk_mode_iv_t;
+
+#define GRUB_CRYPTODISK_MAX_UUID_LENGTH 71
+
+#define GRUB_CRYPTODISK_GF_LOG_SIZE 7
+#define GRUB_CRYPTODISK_GF_SIZE (1U << GRUB_CRYPTODISK_GF_LOG_SIZE)
+#define GRUB_CRYPTODISK_GF_LOG_BYTES (GRUB_CRYPTODISK_GF_LOG_SIZE - 3)
+#define GRUB_CRYPTODISK_GF_BYTES (1U << GRUB_CRYPTODISK_GF_LOG_BYTES)
+
+struct grub_cryptodisk;
+
+typedef gcry_err_code_t
+(*grub_cryptodisk_rekey_func_t) (struct grub_cryptodisk *dev,
+				 grub_uint64_t zoneno);
+
+struct grub_cryptodisk
+{
+  struct grub_cryptodisk *next;
+
+  char *source;
+  grub_disk_addr_t offset;
+  grub_disk_addr_t total_length;
+  grub_disk_t source_disk;
+  int ref;
+  grub_crypto_cipher_handle_t cipher;
+  grub_crypto_cipher_handle_t secondary_cipher;
+  grub_crypto_cipher_handle_t essiv_cipher;
+  const gcry_md_spec_t *essiv_hash, *hash, *iv_hash;
+  grub_cryptodisk_mode_t mode;
+  grub_cryptodisk_mode_iv_t mode_iv;
+  int benbi_log;
+  unsigned long id, source_id;
+  enum grub_disk_dev_id source_dev_id;
+  char uuid[GRUB_CRYPTODISK_MAX_UUID_LENGTH + 1];
+  grub_uint8_t lrw_key[GRUB_CRYPTODISK_GF_BYTES];
+  grub_uint8_t *lrw_precalc;
+  grub_uint8_t iv_prefix[64];
+  grub_size_t iv_prefix_len;
+#ifdef GRUB_UTIL
+  char *cheat;
+  const char *modname;
+  int cheat_fd;
+#endif
+  int log_sector_size;
+  grub_cryptodisk_rekey_func_t rekey;
+  int rekey_shift;
+  grub_uint8_t rekey_key[64];
+  grub_uint64_t last_rekey;
+  int rekey_derived_size;
+};
+typedef struct grub_cryptodisk *grub_cryptodisk_t;
+
+struct grub_cryptodisk_dev
+{
+  struct grub_cryptodisk_dev *next;
+
+  grub_cryptodisk_t (*scan) (grub_disk_t disk, const char *check_uuid,
+			     int boot_only);
+  grub_err_t (*recover_key) (grub_disk_t disk, grub_cryptodisk_t dev);
+};
+typedef struct grub_cryptodisk_dev *grub_cryptodisk_dev_t;
+
+extern grub_cryptodisk_dev_t EXPORT_VAR (grub_cryptodisk_list);
+
+#ifndef GRUB_LST_GENERATOR
+static inline void
+grub_cryptodisk_dev_register (grub_cryptodisk_dev_t cr)
+{
+  grub_list_push (GRUB_AS_LIST_P (&grub_cryptodisk_list), GRUB_AS_LIST (cr));
+}
+#endif
+
+static inline void
+grub_cryptodisk_dev_unregister (grub_cryptodisk_dev_t cr)
+{
+  grub_list_remove (GRUB_AS_LIST_P (&grub_cryptodisk_list), GRUB_AS_LIST (cr));
+}
+
+#define FOR_CRYPTODISK_DEVS(var) FOR_LIST_ELEMENTS((var), (grub_cryptodisk_list))
+
+gcry_err_code_t
+grub_cryptodisk_setkey (grub_cryptodisk_t dev,
+			grub_uint8_t *key, grub_size_t keysize);
+gcry_err_code_t
+grub_cryptodisk_decrypt (struct grub_cryptodisk *dev,
+			 grub_uint8_t * data, grub_size_t len,
+			 grub_disk_addr_t sector);
+grub_err_t
+grub_cryptodisk_insert (grub_cryptodisk_t newdev, const char *name,
+			grub_disk_t source);
+#ifdef GRUB_UTIL
+grub_err_t
+grub_cryptodisk_cheat_insert (grub_cryptodisk_t newdev, const char *name,
+			      grub_disk_t source, const char *cheat);
+void
+grub_util_cryptodisk_print_abstraction (grub_disk_t disk);
+char *
+grub_util_get_geli_uuid (const char *dev);
+#endif
+
+grub_cryptodisk_t grub_cryptodisk_get_by_uuid (const char *uuid);
+grub_cryptodisk_t grub_cryptodisk_get_by_source_disk (grub_disk_t disk);
+
+#endif

include/grub/disk.h

@@ -42,7 +42,7 @@ enum grub_disk_dev_id
     GRUB_DISK_DEVICE_PXE_ID,
     GRUB_DISK_DEVICE_SCSI_ID,
     GRUB_DISK_DEVICE_FILE_ID,
-    GRUB_DISK_DEVICE_LUKS_ID,
+    GRUB_DISK_DEVICE_CRYPTODISK_ID,
     GRUB_DISK_DEVICE_ARCDISK_ID,
   };
 

include/grub/emu/getroot.h

@@ -25,6 +25,8 @@ enum grub_dev_abstraction_types {
   GRUB_DEV_ABSTRACTION_NONE,
   GRUB_DEV_ABSTRACTION_LVM,
   GRUB_DEV_ABSTRACTION_RAID,
+  GRUB_DEV_ABSTRACTION_LUKS,
+  GRUB_DEV_ABSTRACTION_GELI,
 };
 
 char *grub_find_device (const char *dir, dev_t dev);
@@ -37,5 +39,9 @@ const char *grub_util_check_char_device (const char *blk_dev);
 #ifdef __linux__
 char **grub_util_raid_getmembers (const char *name, int bootable);
 #endif
+#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
+void grub_util_follow_gpart_up (const char *name, grub_disk_addr_t *off_out,
+				char **name_out);
+#endif
 
 #endif /* ! GRUB_UTIL_GETROOT_HEADER */

include/grub/emu/hostdisk.h

@@ -21,6 +21,7 @@
 #define GRUB_BIOSDISK_MACHINE_UTIL_HEADER	1
 
 #include <grub/disk.h>
+#include <sys/types.h>
 
 void grub_util_biosdisk_init (const char *dev_map);
 void grub_util_biosdisk_fini (void);
@@ -30,5 +31,15 @@ int grub_util_biosdisk_is_present (const char *name);
 int grub_util_biosdisk_is_floppy (grub_disk_t disk);
 grub_err_t grub_util_biosdisk_flush (struct grub_disk *disk);
 void grub_util_pull_device (const char *osname);
+grub_err_t
+grub_util_fd_seek (int fd, const char *name, grub_uint64_t sector);
+ssize_t grub_util_fd_read (int fd, char *buf, size_t len);
+grub_err_t
+grub_cryptodisk_cheat_mount (const char *sourcedev, const char *cheat);
+void grub_util_cryptodisk_print_uuid (grub_disk_t disk);
+#if !defined(__MINGW32__)
+grub_uint64_t
+grub_util_get_fd_sectors (int fd, unsigned *log_secsize);
+#endif
 
 #endif /* ! GRUB_BIOSDISK_MACHINE_UTIL_HEADER */

util/grub-fstest.c

@@ -299,6 +299,7 @@ static char **images = NULL;
 static int cmd = 0;
 static char *debug_str = NULL;
 static char **args = NULL;
+static int mount_crypt = 0;
 
 static void
 fstest (int n, char **args)
@@ -328,6 +329,15 @@ fstest (int n, char **args)
       grub_free (host_file);
     }
 
+  {
+    char *argv[2] = { "-a", NULL};
+    if (mount_crypt)
+      {
+	if (execute_command ("cryptomount", 1, argv))
+	  grub_util_error (_("cryptomount command fails: %s"), grub_errmsg);
+      }
+  }
+
   grub_lvm_fini ();
   grub_mdraid09_fini ();
   grub_mdraid1x_fini ();
@@ -397,6 +407,7 @@ static struct argp_option options[] = {
   {"length",    'n', "N",           0, N_("Handle N bytes in output file."),   2},
   {"diskcount", 'c', "N",           0, N_("N input files."),                   2},
   {"debug",     'd', "S",           0, N_("Set debug environment variable."),  2},
+  {"crypto",   'C', NULL, OPTION_ARG_OPTIONAL, N_("Mount crypto devices."), 2},
   {"verbose",   'v', NULL, OPTION_ARG_OPTIONAL, N_("Print verbose messages."), 2},
   {0, 0, 0, 0, 0, 0}
 };
@@ -420,6 +431,10 @@ argp_parser (int key, char *arg, struct argp_state *state)
       root = arg;
       return 0;
 
+    case 'C':
+      mount_crypt = 1;
+      return 0;
+
     case 's':
       skip = grub_strtoul (arg, &p, 0);
       if (*p == 's')
@@ -564,6 +579,7 @@ main (int argc, char *argv[])
 
   /* Initialize all modules. */
   grub_init_all ();
+  grub_gcry_init_all ();
 
   if (debug_str)
     grub_env_set ("debug", debug_str);
@@ -592,6 +608,7 @@ main (int argc, char *argv[])
   fstest (args_count - 1 - num_disks, args);
 
   /* Free resources.  */
+  grub_gcry_fini_all ();
   grub_fini_all ();
 
   return 0;

util/grub-install.in

@@ -456,6 +456,8 @@ for dir in "${localedir}"/*; do
     fi
 done
 
+is_path_readable_by_grub "${grubdir}" || (echo "${grubdir}" not readable 1>&2 ; exit 1)
+
 # Write device to a variable so we don't have to traverse /dev every time.
 grub_device="`"$grub_probe" --device-map="${device_map}" --target=device "${grubdir}"`" || exit 1
 
@@ -544,6 +546,12 @@ if [ "x${devabstraction_module}" = "x" ] ; then
              
           exit 1
         fi
+	if [ x$GRUB_CRYPTODISK_ENABLE = xy ]; then
+	    for uuid in "`"${grub_probe}" --device "${device}" --target=cryptodisk_uuid`"; do
+		echo "cryptomount -u $uuid"
+	    done
+	fi
+
         echo "search.fs_uuid ${uuid} root " >> "${grubdir}/load.cfg"
 	echo 'set prefix=($root)'"${relative_grubdir}" >> "${grubdir}/load.cfg"
 	config_opt="-c ${grubdir}/load.cfg "

util/grub-mkconfig.in

@@ -256,6 +256,7 @@ export GRUB_DEFAULT \
   GRUB_DISABLE_OS_PROBER \
   GRUB_INIT_TUNE \
   GRUB_SAVEDEFAULT \
+  GRUB_ENABLE_CRYPTODISK \
   GRUB_BADRAM
 
 if test "x${grub_cfg}" != "x"; then

util/grub-mkconfig_lib.in

@@ -63,10 +63,22 @@ is_path_readable_by_grub ()
 
   # ... or if we can't figure out the abstraction module, for example if
   # memberlist fails on an LVM volume group.
-  if "${grub_probe}" -t abstraction "$path" > /dev/null 2>&1 ; then : ; else
+  if abstractions="`"${grub_probe}" -t abstraction "$path"`" 2>&1 ; then 
+      :
+  else
     return 1
   fi
 
+  if [ x$GRUB_CRYPTODISK_ENABLE = xy ]; then
+      return 0
+  fi
+  
+  for abstraction in $abstractions; do
+      if [ "x$abstraction" = xcryptodisk ]; then
+	  return 1
+      fi
+  done
+
   return 0
 }
 
@@ -126,6 +138,12 @@ prepare_grub_to_access_device ()
     echo "insmod ${module}"
   done
 
+  if [ x$GRUB_CRYPTODISK_ENABLE = xy ]; then
+      for uuid in "`"${grub_probe}" --device "${device}" --target=cryptodisk_uuid`"; do
+	  echo "cryptomount -u $uuid"
+      done
+  fi
+
   # If there's a filesystem UUID that GRUB is capable of identifying, use it;
   # otherwise set root as per value in device.map.
   echo "set root='`"${grub_probe}" --device "${device}" --target=drive`'"

util/grub-mkpasswd-pbkdf2.c

@@ -20,6 +20,7 @@
 
 #include <grub/types.h>
 #include <grub/crypto.h>
+#include <grub/auth.h>
 #include <grub/emu/misc.h>
 #include <grub/util/misc.h>
 #include <grub/i18n.h>
@@ -29,7 +30,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <getopt.h>
-#include <termios.h>
 
 #include "progname.h"
 
@@ -85,14 +85,12 @@ int
 main (int argc, char *argv[])
 {
   unsigned int count = 10000, buflen = 64, saltlen = 64;
-  char *pass1, *pass2;
   char *bufhex, *salthex;
   gcry_err_code_t gcry_err;
   grub_uint8_t *buf, *salt;
   ssize_t nr;
-  FILE *in, *out;
+  char pass1[GRUB_AUTH_MAX_PASSLEN];
-  struct termios s, t;
+  char pass2[GRUB_AUTH_MAX_PASSLEN];
-  int tty_changed;
 
   set_program_name (argv[0]);
 
@@ -161,85 +159,36 @@ main (int argc, char *argv[])
       grub_util_error ("out of memory");
     }
   
-  /* Disable echoing. Based on glibc.  */
-  in = fopen ("/dev/tty", "w+c");
-  if (in == NULL)
-    {
-      in = stdin;
-      out = stderr;
-    }
-  else
-    out = in;
-
-  if (tcgetattr (fileno (in), &t) == 0)
-    {
-      /* Save the old one. */
-      s = t;
-      /* Tricky, tricky. */
-      t.c_lflag &= ~(ECHO|ISIG);
-      tty_changed = (tcsetattr (fileno (in), TCSAFLUSH, &t) == 0);
-    }
-  else
-    tty_changed = 0;
-  
   printf ("Enter password: ");
-  pass1 = NULL;
+  if (!grub_password_get (pass1, GRUB_AUTH_MAX_PASSLEN))
-  {
-    grub_size_t n;
-    nr = getline (&pass1, &n, stdin);
-  }
-  if (nr < 0 || !pass1)
     {
       free (buf);
       free (bufhex);
       free (salthex);
       free (salt);
-      /* Restore the original setting.  */
-      if (tty_changed)
-	(void) tcsetattr (fileno (in), TCSAFLUSH, &s);
       grub_util_error ("failure to read password");
     }
-  if (nr >= 1 && pass1[nr-1] == '\n')
-    pass1[nr-1] = 0;
-
   printf ("\nReenter password: ");
-  pass2 = NULL;
+  if (!grub_password_get (pass2, GRUB_AUTH_MAX_PASSLEN))
     {
-    grub_size_t n;
-    nr = getline (&pass2, &n, stdin);
-  }
-  /* Restore the original setting.  */
-  if (tty_changed)
-    (void) tcsetattr (fileno (in), TCSAFLUSH, &s);
-  printf ("\n");
-
-  if (nr < 0 || !pass2)
-    {
-      memset (pass1, 0, strlen (pass1));
-      free (pass1);
       free (buf);
       free (bufhex);
       free (salthex);
       free (salt);
       grub_util_error ("failure to read password");
     }
-  if (nr >= 1 && pass2[nr-1] == '\n')
-    pass2[nr-1] = 0;
 
   if (strcmp (pass1, pass2) != 0)
     {
-      memset (pass1, 0, strlen (pass1));
+      memset (pass1, 0, sizeof (pass1));
-      memset (pass2, 0, strlen (pass2));
+      memset (pass2, 0, sizeof (pass2));
-      free (pass1);
-      free (pass2);
       free (buf);
       free (bufhex);
       free (salthex);
       free (salt);
       grub_util_error ("passwords don't match");
     }
-  memset (pass2, 0, strlen (pass2));
+  memset (pass2, 0, sizeof (pass2));
-  free (pass2);
 
 #if ! defined (__linux__) && ! defined (__FreeBSD__)
   printf ("WARNING: your random generator isn't known to be secure\n");
@@ -251,8 +200,7 @@ main (int argc, char *argv[])
     f = fopen ("/dev/urandom", "rb");
     if (!f)
       {
-	memset (pass1, 0, strlen (pass1));
+	memset (pass1, 0, sizeof (pass1));
-	free (pass1);
 	free (buf);
 	free (bufhex);
 	free (salthex);
@@ -264,8 +212,7 @@ main (int argc, char *argv[])
     if (rd != saltlen)
       {
 	fclose (f);
-	memset (pass1, 0, strlen (pass1));
+	memset (pass1, 0, sizeof (pass1));
-	free (pass1);
 	free (buf);
 	free (bufhex);
 	free (salthex);
@@ -279,8 +226,7 @@ main (int argc, char *argv[])
 				 (grub_uint8_t *) pass1, strlen (pass1),
 				 salt, saltlen,
 				 count, buf, buflen);
-  memset (pass1, 0, strlen (pass1));
+  memset (pass1, 0, sizeof (pass1));
-  free (pass1);
 
   if (gcry_err)
     {

util/grub-probe.c

@@ -34,6 +34,8 @@
 #include <grub/env.h>
 #include <grub/raid.h>
 #include <grub/i18n.h>
+#include <grub/crypto.h>
+#include <grub/cryptodisk.h>
 
 #include <stdio.h>
 #include <unistd.h>
@@ -54,6 +56,7 @@ enum {
   PRINT_DEVICE,
   PRINT_PARTMAP,
   PRINT_ABSTRACTION,
+  PRINT_CRYPTODISK_UUID
 };
 
 int print = PRINT_FS;
@@ -63,15 +66,49 @@ static void
 probe_partmap (grub_disk_t disk)
 {
   grub_partition_t part;
+  grub_disk_memberlist_t list = NULL, tmp;
 
   if (disk->partition == NULL)
     {
       grub_util_info ("no partition map found for %s", disk->name);
-      return;
     }
 
   for (part = disk->partition; part; part = part->parent)
-    printf ("%s\n", part->partmap->name);
+    printf ("%s ", part->partmap->name);
+
+  /* In case of LVM/RAID, check the member devices as well.  */
+  if (disk->dev->memberlist)
+    {
+      list = disk->dev->memberlist (disk);
+    }
+  while (list)
+    {
+      probe_partmap (list->disk);
+      tmp = list->next;
+      free (list);
+      list = tmp;
+    }
+}
+
+static void
+probe_cryptodisk_uuid (grub_disk_t disk)
+{
+  grub_disk_memberlist_t list = NULL, tmp;
+
+  /* In case of LVM/RAID, check the member devices as well.  */
+  if (disk->dev->memberlist)
+    {
+      list = disk->dev->memberlist (disk);
+    }
+  while (list)
+    {
+      probe_cryptodisk_uuid (list->disk);
+      tmp = list->next;
+      free (list);
+      list = tmp;
+    }
+  if (disk->dev->id == GRUB_DISK_DEVICE_CRYPTODISK_ID)
+    grub_util_cryptodisk_print_uuid (disk);
 }
 
 static int
@@ -88,6 +125,42 @@ probe_raid_level (grub_disk_t disk)
   return ((struct grub_raid_array *) disk->data)->level;
 }
 
+static void
+probe_abstraction (grub_disk_t disk)
+{
+  grub_disk_memberlist_t list = NULL, tmp;
+  int raid_level;
+
+  if (disk->dev->memberlist)
+    list = disk->dev->memberlist (disk);
+  while (list)
+    {
+      probe_abstraction (list->disk);
+
+      tmp = list->next;
+      free (list);
+      list = tmp;
+    }
+
+  if (disk->dev->id == GRUB_DISK_DEVICE_LVM_ID)
+    printf ("lvm ");
+
+  if (disk->dev->id == GRUB_DISK_DEVICE_CRYPTODISK_ID)
+    grub_util_cryptodisk_print_abstraction (disk);
+
+  raid_level = probe_raid_level (disk);
+  if (raid_level >= 0)
+    {
+      printf ("raid ");
+      if (disk->dev->raidname)
+	printf ("%s ", disk->dev->raidname (disk));
+    }
+  if (raid_level == 5)
+    printf ("raid5rec ");
+  if (raid_level == 6)
+    printf ("raid6rec ");
+}
+
 static void
 probe (const char *path, char *device_name)
 {
@@ -136,91 +209,23 @@ probe (const char *path, char *device_name)
 
   if (print == PRINT_ABSTRACTION)
     {
-      grub_disk_memberlist_t list = NULL, tmp;
+      probe_abstraction (dev->disk);
-      const int is_lvm = (dev->disk->dev->id == GRUB_DISK_DEVICE_LVM_ID);
-      int is_raid = 0;
-      int is_raid5 = 0;
-      int is_raid6 = 0;
-      int raid_level;
-      grub_disk_t raid_disk;
-
-      raid_level = probe_raid_level (dev->disk);
-      if (raid_level >= 0)
-	{
-	  is_raid = 1;
-	  is_raid5 |= (raid_level == 5);
-	  is_raid6 |= (raid_level == 6);
-	  raid_disk = dev->disk;
-	}
-
-      if ((is_lvm) && (dev->disk->dev->memberlist))
-	list = dev->disk->dev->memberlist (dev->disk);
-      while (list)
-	{
-	  raid_level = probe_raid_level (list->disk);
-	  if (raid_level >= 0)
-	    {
-	      is_raid = 1;
-	      is_raid5 |= (raid_level == 5);
-	      is_raid6 |= (raid_level == 6);
-	      raid_disk = list->disk;
-	    }
-
-	  tmp = list->next;
-	  free (list);
-	  list = tmp;
-	}
-
-      if (is_raid)
-	{
-	  printf ("raid ");
-	  if (is_raid5)
-	    printf ("raid5rec ");
-	  if (is_raid6)
-	    printf ("raid6rec ");
-	  if (raid_disk->dev->raidname)
-	    printf ("%s ", raid_disk->dev->raidname (raid_disk));
-	}
-
-      if (is_lvm)
-	printf ("lvm ");
-
       printf ("\n");
+      goto end;
+    }
 
+  if (print == PRINT_CRYPTODISK_UUID)
+    {
+      probe_cryptodisk_uuid (dev->disk);
+      printf ("\n");
       goto end;
     }
 
   if (print == PRINT_PARTMAP)
     {
-      grub_disk_memberlist_t list = NULL, tmp;
-
       /* Check if dev->disk itself is contained in a partmap.  */
       probe_partmap (dev->disk);
-
+      printf ("\n");
-      /* In case of LVM/RAID, check the member devices as well.  */
-      if (dev->disk->dev->memberlist)
-	list = dev->disk->dev->memberlist (dev->disk);
-      while (list)
-	{
-	  probe_partmap (list->disk);
-	  /* LVM on RAID  */
-	  if (list->disk->dev->memberlist)
-	    {
-	      grub_disk_memberlist_t sub_list;
-
-	      sub_list = list->disk->dev->memberlist (list->disk);
-	      while (sub_list)
-		{
-		  probe_partmap (sub_list->disk);
-		  tmp = sub_list->next;
-		  free (sub_list);
-		  sub_list = tmp;
-		}
-	    }
-	  tmp = list->next;
-	  free (list);
-	  list = tmp;
-	}
       goto end;
     }
 
@@ -289,8 +294,8 @@ Probe device information for a given path (or device, if the -d option is given)
 \n\
   -d, --device              given argument is a system device, not a path\n\
   -m, --device-map=FILE     use FILE as the device map [default=%s]\n\
-  -t, --target=(fs|fs_uuid|fs_label|drive|device|partmap|abstraction)\n\
+  -t, --target=(fs|fs_uuid|fs_label|drive|device|partmap|abstraction|cryptodisk_uuid)\n\
-                            print filesystem module, GRUB drive, system device, partition map module or abstraction module [default=fs]\n\
+                            print filesystem module, GRUB drive, system device, partition map module, abstraction module or CRYPTO UUID [default=fs]\n\
   -h, --help                display this message and exit\n\
   -V, --version             print version information and exit\n\
   -v, --verbose             print verbose messages\n\
@@ -348,6 +353,8 @@ main (int argc, char *argv[])
 	      print = PRINT_PARTMAP;
 	    else if (!strcmp (optarg, "abstraction"))
 	      print = PRINT_ABSTRACTION;
+	    else if (!strcmp (optarg, "cryptodisk_uuid"))
+	      print = PRINT_CRYPTODISK_UUID;
 	    else
 	      usage (1);
 	    break;
@@ -393,6 +400,7 @@ main (int argc, char *argv[])
 
   /* Initialize all modules. */
   grub_init_all ();
+  grub_gcry_init_all ();
 
   grub_lvm_fini ();
   grub_mdraid09_fini ();
@@ -410,6 +418,7 @@ main (int argc, char *argv[])
     probe (argument, NULL);
 
   /* Free resources.  */
+  grub_gcry_fini_all ();
   grub_fini_all ();
   grub_util_biosdisk_fini ();
 

util/import_gcry.py

@@ -42,7 +42,15 @@ except:
 cipher_files = os.listdir (cipher_dir_in)
 conf = open (os.path.join ("grub-core", "Makefile.gcry.def"), "w")
 conf.write ("AutoGen definitions Makefile.tpl;\n\n")
+confutil = open ("Makefile.utilgcry.def", "w")
+confutil.write ("AutoGen definitions Makefile.tpl;\n\n")
+confutil.write ("library = {\n");
+confutil.write ("  name = libgrubgcry.a;\n");
+confutil.write ("  cflags = '$(CFLAGS_GCRY)';\n");
+confutil.write ("  cppflags = '$(CPPFLAGS_GCRY)';\n");
+confutil.write ("\n");
 chlog = ""
+modules = []
 
 # Strictly speaking CRC32/CRC24 work on bytes so this value should be 1
 # But libgcrypt uses 64. Let's keep the value for compatibility. Since
@@ -103,6 +111,7 @@ for cipher_file in cipher_files:
         skip = False
         skip2 = False
         ismd = False
+        iscipher = False
         iscryptostart = False
         iscomma = False
         isglue = False
@@ -132,15 +141,22 @@ for cipher_file in cipher_files:
                     sg = s.groups()[0]
                     cryptolist.write (("%s: %s\n") % (sg, modname))
                     iscryptostart = False
-            if ismd:
+            if ismd or iscipher:
                 if not re.search (" *};", line) is None:
-                    if not mdblocksizes.has_key (mdname):
-                        print ("ERROR: Unknown digest blocksize: %s\n" % mdname)
-                        exit (1)
                     if not iscomma:
                         fw.write ("    ,\n")
-                    fw.write ("    .blocksize = %s\n" % mdblocksizes [mdname])
+                    fw.write ("#ifdef GRUB_UTIL\n");
+                    fw.write ("    .modname = \"%s\",\n" % modname);
+                    fw.write ("#endif\n");
+                    if ismd:
+                        if not mdblocksizes.has_key (mdname):
+                            print ("ERROR: Unknown digest blocksize: %s\n"
+                                   % mdname)
+                            exit (1)
+                        fw.write ("    .blocksize = %s\n"
+                                  % mdblocksizes [mdname])
                     ismd = False
+                    iscipher = False
                 iscomma = not re.search (",$", line) is None
             # Used only for selftests.
             m = re.match ("(static byte|static unsigned char) (weak_keys_chksum)\[[0-9]*\] =", line)
@@ -181,14 +197,18 @@ for cipher_file in cipher_files:
                 continue
             m = re.match ("gcry_cipher_spec_t", line)
             if isc and not m is None:
+                assert (not iscryptostart)
+                assert (not iscipher)
                 assert (not iscryptostart)
                 ciphername = line [len ("gcry_cipher_spec_t"):].strip ()
                 ciphername = re.match("[a-zA-Z0-9_]*",ciphername).group ()
                 ciphernames.append (ciphername)
+                iscipher = True
                 iscryptostart = True
             m = re.match ("gcry_md_spec_t", line)
             if isc and not m is None:
                 assert (not ismd)
+                assert (not iscipher)
                 assert (not iscryptostart)
                 mdname = line [len ("gcry_md_spec_t"):].strip ()
                 mdname = re.match("[a-zA-Z0-9_]*",mdname).group ()
@@ -249,6 +269,7 @@ for cipher_file in cipher_files:
                     % (cipher_file, cipher_file.replace ("-glue.c", ".c"))
             else:
                 modfiles = "lib/libgcrypt-grub/cipher/%s" % cipher_file
+            modules.append (modname)
             chmsg = "(GRUB_MOD_INIT(%s)): New function\n" % modname
             if nch:
                 chlognew = "%s\n	%s" % (chlognew, chmsg)
@@ -283,6 +304,7 @@ for cipher_file in cipher_files:
             conf.write ("  name = %s;\n" % modname)
             for src in modfiles.split():
                 conf.write ("  common = %s;\n" % src)
+                confutil.write ("  common = grub-core/%s;\n" % src)
             conf.write ("  cflags = '$(CFLAGS_GCRY)';\n");
             conf.write ("  cppflags = '$(CPPFLAGS_GCRY)';\n");
             conf.write ("};\n\n")
@@ -329,6 +351,32 @@ fw.close ()
 infile = os.path.join (cipher_dir_in, "ChangeLog")
 outfile = os.path.join (cipher_dir_out, "ChangeLog")
 
+conf.close ();
+
+initfile = open (os.path.join (cipher_dir_out, "init.c"), "w")
+for module in modules:
+    initfile.write ("extern void grub_%s_init (void);\n" % module)
+    initfile.write ("extern void grub_%s_fini (void);\n" % module)
+initfile.write ("\n")
+initfile.write ("void\n")
+initfile.write ("grub_gcry_init_all (void)\n")
+initfile.write ("{\n")
+for module in modules:
+    initfile.write ("  grub_%s_init ();\n" % module)
+initfile.write ("}\n")
+initfile.write ("\n")
+initfile.write ("void\n")
+initfile.write ("grub_gcry_fini_all (void)\n")
+initfile.write ("{\n")
+for module in modules:
+    initfile.write ("  grub_%s_fini ();\n" % module)
+initfile.write ("}\n")
+initfile.close ()
+
+confutil.write ("  common = grub-core/lib/libgcrypt-grub/cipher/init.c;\n")
+confutil.write ("};\n");
+confutil.close ();
+
 
 f=open (infile, "r")
 fw=open (outfile, "w")