1 files changed, 194 insertions, 0 deletions
diff --git a/lib/luks1/luks.h b/lib/luks1/luks.h
new file mode 100644
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--- /dev/null
+++ b/lib/luks1/luks.h
@@ -0,0 +1,194 @@
+/*
+ * LUKS - Linux Unified Key Setup
+ *
+ * Copyright (C) 2004-2006 Clemens Fruhwirth <clemens@endorphin.org>
+ * Copyright (C) 2009-2021 Red Hat, Inc. All rights reserved.
+ *
+ * This program 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 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 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 Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef INCLUDED_CRYPTSETUP_LUKS_LUKS_H
+#define INCLUDED_CRYPTSETUP_LUKS_LUKS_H
+
+/*
+ * LUKS partition header
+ */
+
+#include "libcryptsetup.h"
+
+#define LUKS_CIPHERNAME_L 32
+#define LUKS_CIPHERMODE_L 32
+#define LUKS_HASHSPEC_L 32
+#define LUKS_DIGESTSIZE 20 // since SHA1
+#define LUKS_HMACSIZE 32
+#define LUKS_SALTSIZE 32
+#define LUKS_NUMKEYS 8
+
+// Minimal number of iterations
+#define LUKS_MKD_ITERATIONS_MIN  1000
+#define LUKS_SLOT_ITERATIONS_MIN 1000
+
+// Iteration time for digest in ms
+#define LUKS_MKD_ITERATIONS_MS 125
+
+#define LUKS_KEY_DISABLED_OLD 0
+#define LUKS_KEY_ENABLED_OLD 0xCAFE
+
+#define LUKS_KEY_DISABLED 0x0000DEAD
+#define LUKS_KEY_ENABLED  0x00AC71F3
+
+#define LUKS_STRIPES 4000
+
+// partition header starts with magic
+#define LUKS_MAGIC {'L','U','K','S', 0xba, 0xbe};
+#define LUKS_MAGIC_L 6
+
+/* Actually we need only 37, but we don't want struct autoaligning to kick in */
+#define UUID_STRING_L 40
+
+/* Offset to keyslot area [in bytes] */
+#define LUKS_ALIGN_KEYSLOTS 4096
+
+/* Maximal LUKS header size, for wipe [in bytes] */
+#define LUKS_MAX_KEYSLOT_SIZE 0x1000000 /* 16 MB, up to 32768 bits key */
+
+/* Any integer values are stored in network byte order on disk and must be
+converted */
+
+struct volume_key;
+struct device_backend;
+
+struct luks_phdr {
+	char		magic[LUKS_MAGIC_L];
+	uint16_t	version;
+	char		cipherName[LUKS_CIPHERNAME_L];
+	char		cipherMode[LUKS_CIPHERMODE_L];
+	char            hashSpec[LUKS_HASHSPEC_L];
+	uint32_t	payloadOffset;
+	uint32_t	keyBytes;
+	char		mkDigest[LUKS_DIGESTSIZE];
+	char		mkDigestSalt[LUKS_SALTSIZE];
+	uint32_t	mkDigestIterations;
+	char            uuid[UUID_STRING_L];
+
+	struct {
+		uint32_t active;
+
+		/* parameters used for password processing */
+		uint32_t passwordIterations;
+		char     passwordSalt[LUKS_SALTSIZE];
+
+		/* parameters used for AF store/load */
+		uint32_t keyMaterialOffset;
+		uint32_t stripes;
+	} keyblock[LUKS_NUMKEYS];
+
+	/* Align it to 512 sector size */
+	char		_padding[432];
+};
+
+int LUKS_verify_volume_key(const struct luks_phdr *hdr,
+			   const struct volume_key *vk);
+
+int LUKS_check_cipher(struct crypt_device *ctx,
+		      size_t keylength,
+		      const char *cipher,
+		      const char *cipher_mode);
+
+int LUKS_generate_phdr(struct luks_phdr *header,
+	const struct volume_key *vk,
+	const char *cipherName,
+	const char *cipherMode,
+	const char *hashSpec,
+	const char *uuid,
+	uint64_t data_offset,
+	uint64_t align_offset,
+	uint64_t required_alignment,
+	struct crypt_device *ctx);
+
+int LUKS_read_phdr(
+	struct luks_phdr *hdr,
+	int require_luks_device,
+	int repair,
+	struct crypt_device *ctx);
+
+int LUKS_read_phdr_backup(
+	const char *backup_file,
+	struct luks_phdr *hdr,
+	int require_luks_device,
+	struct crypt_device *ctx);
+
+int LUKS_hdr_uuid_set(
+	struct luks_phdr *hdr,
+	const char *uuid,
+	struct crypt_device *ctx);
+
+int LUKS_hdr_backup(
+	const char *backup_file,
+	struct crypt_device *ctx);
+
+int LUKS_hdr_restore(
+	const char *backup_file,
+	struct luks_phdr *hdr,
+	struct crypt_device *ctx);
+
+int LUKS_write_phdr(
+	struct luks_phdr *hdr,
+	struct crypt_device *ctx);
+
+int LUKS_set_key(
+	unsigned int keyIndex,
+	const char *password,
+	size_t passwordLen,
+	struct luks_phdr *hdr,
+	struct volume_key *vk,
+	struct crypt_device *ctx);
+
+int LUKS_open_key_with_hdr(
+	int keyIndex,
+	const char *password,
+	size_t passwordLen,
+	struct luks_phdr *hdr,
+	struct volume_key **vk,
+	struct crypt_device *ctx);
+
+int LUKS_del_key(
+	unsigned int keyIndex,
+	struct luks_phdr *hdr,
+	struct crypt_device *ctx);
+
+int LUKS_wipe_header_areas(struct luks_phdr *hdr,
+	struct crypt_device *ctx);
+
+crypt_keyslot_info LUKS_keyslot_info(struct luks_phdr *hdr, int keyslot);
+int LUKS_keyslot_find_empty(struct luks_phdr *hdr);
+int LUKS_keyslot_active_count(struct luks_phdr *hdr);
+int LUKS_keyslot_set(struct luks_phdr *hdr, int keyslot, int enable,
+		     struct crypt_device *ctx);
+int LUKS_keyslot_area(const struct luks_phdr *hdr,
+	int keyslot,
+	uint64_t *offset,
+	uint64_t *length);
+size_t LUKS_device_sectors(const struct luks_phdr *hdr);
+size_t LUKS_keyslots_offset(const struct luks_phdr *hdr);
+int LUKS_keyslot_pbkdf(struct luks_phdr *hdr, int keyslot,
+		       struct crypt_pbkdf_type *pbkdf);
+
+int LUKS1_activate(struct crypt_device *cd,
+		   const char *name,
+		   struct volume_key *vk,
+		   uint32_t flags);
+
+#endif