1 files changed, 103 insertions, 0 deletions
diff --git a/lib/integrity/integrity.h b/lib/integrity/integrity.h
new file mode 100644
index 0000000..1f49612
--- /dev/null
+++ b/lib/integrity/integrity.h
@@ -0,0 +1,103 @@
+/*
+ * Integrity header definition
+ *
+ * Copyright (C) 2016-2021 Milan Broz
+ *
+ * This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This file 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _CRYPTSETUP_INTEGRITY_H
+#define _CRYPTSETUP_INTEGRITY_H
+
+#include <stdint.h>
+
+struct crypt_device;
+struct device;
+struct crypt_params_integrity;
+struct volume_key;
+struct crypt_dm_active_device;
+
+/* dm-integrity helper */
+#define SB_MAGIC	"integrt"
+#define SB_VERSION_1	1
+#define SB_VERSION_2	2
+#define SB_VERSION_3	3
+#define SB_VERSION_4	4
+#define SB_VERSION_5	5
+
+#define SB_FLAG_HAVE_JOURNAL_MAC	(1 << 0)
+#define SB_FLAG_RECALCULATING		(1 << 1) /* V2 only */
+#define SB_FLAG_DIRTY_BITMAP		(1 << 2) /* V3 only */
+#define SB_FLAG_FIXED_PADDING		(1 << 3) /* V4 only */
+#define SB_FLAG_FIXED_HMAC		(1 << 4) /* V5 only */
+
+struct superblock {
+	uint8_t magic[8];
+	uint8_t version;
+	int8_t log2_interleave_sectors;
+	uint16_t integrity_tag_size;
+	uint32_t journal_sections;
+	uint64_t provided_data_sectors;
+	uint32_t flags;
+	uint8_t log2_sectors_per_block;
+	uint8_t log2_blocks_per_bitmap_bit; /* V3 only */
+	uint8_t pad[2];
+	uint64_t recalc_sector; /* V2 only */
+} __attribute__ ((packed));
+
+int INTEGRITY_read_sb(struct crypt_device *cd,
+		      struct crypt_params_integrity *params,
+		      uint32_t *flags);
+
+int INTEGRITY_dump(struct crypt_device *cd, struct device *device, uint64_t offset);
+
+int INTEGRITY_data_sectors(struct crypt_device *cd,
+			   struct device *device, uint64_t offset,
+			   uint64_t *data_sectors);
+int INTEGRITY_key_size(struct crypt_device *cd,
+		       const char *integrity);
+int INTEGRITY_tag_size(struct crypt_device *cd,
+		       const char *integrity,
+		       const char *cipher,
+		       const char *cipher_mode);
+int INTEGRITY_hash_tag_size(const char *integrity);
+
+int INTEGRITY_format(struct crypt_device *cd,
+		     const struct crypt_params_integrity *params,
+		     struct volume_key *journal_crypt_key,
+		     struct volume_key *journal_mac_key);
+
+int INTEGRITY_activate(struct crypt_device *cd,
+		       const char *name,
+		       const struct crypt_params_integrity *params,
+		       struct volume_key *vk,
+		       struct volume_key *journal_crypt_key,
+		       struct volume_key *journal_mac_key,
+		       uint32_t flags, uint32_t sb_flags);
+
+int INTEGRITY_create_dmd_device(struct crypt_device *cd,
+		       const struct crypt_params_integrity *params,
+		       struct volume_key *vk,
+		       struct volume_key *journal_crypt_key,
+		       struct volume_key *journal_mac_key,
+		       struct crypt_dm_active_device *dmd,
+		       uint32_t flags, uint32_t sb_flags);
+
+int INTEGRITY_activate_dmd_device(struct crypt_device *cd,
+		       const char *name,
+		       const char *type,
+		       struct crypt_dm_active_device *dmd,
+		       uint32_t sb_flags);
+#endif