Merge "Merge branch 'upstream' into tizen" into tizen

[platform/upstream/cryptsetup.git] / lib / verity / verity.h

diff --git a/lib/verity/verity.h b/lib/verity/verity.h
index 63ecfb9..2269649 100644 (file)
--- a/lib/verity/verity.h
+++ b/lib/verity/verity.h
@@ -1,83 +1,80 @@
 /*
  * dm-verity volume handling
  *
- * Copyright (C) 2012, Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2012-2021 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
- * version 2 as published by the Free Software Foundation.
+ * 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software
+ * 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 _VERITY_H
 #define _VERITY_H
 
-#include <unistd.h>
-#include "config.h"
+#include <stddef.h>
+#include <stdint.h>
 
-#define VERITY_SIGNATURE       "verity\0\0"
-#define VERITY_MAX_LEVELS      63
-#define VERITY_MAX_SALT_SIZE   384
+#define VERITY_MAX_HASH_TYPE 1
+#define VERITY_BLOCK_SIZE_OK(x)        ((x) % 512 || (x) < 512 || \
+                               (x) > (512 * 1024) || (x) & ((x)-1))
 
 struct crypt_device;
 struct crypt_params_verity;
-
-/* FIXME: not yet final on-disk format! Add UUID etc */
-struct verity_sb {
-       uint8_t signature[8];
-       uint8_t version;
-       uint8_t data_block_bits;
-       uint8_t hash_block_bits;
-       uint8_t pad1[1];
-       uint16_t salt_size;
-       uint8_t pad2[2];
-       uint32_t data_blocks_hi;
-       uint32_t data_blocks_lo;
-       uint8_t algorithm[16];
-       uint8_t salt[VERITY_MAX_SALT_SIZE];
-       uint8_t pad3[88];
-};
+struct device;
 
 int VERITY_read_sb(struct crypt_device *cd,
-                  const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
+                  char **uuid,
                   struct crypt_params_verity *params);
 
 int VERITY_write_sb(struct crypt_device *cd,
-                  const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
+                  const char *uuid_string,
                   struct crypt_params_verity *params);
 
 int VERITY_activate(struct crypt_device *cd,
                     const char *name,
-                    const char *hash_device,
                     const char *root_hash,
                     size_t root_hash_size,
+                    const char *signature_description,
+                    struct device *fec_device,
                     struct crypt_params_verity *verity_hdr,
-                    uint32_t flags);
+                    uint32_t activation_flags);
 
 int VERITY_verify(struct crypt_device *cd,
                struct crypt_params_verity *verity_hdr,
-               const char *data_device,
-               const char *hash_device,
                const char *root_hash,
                size_t root_hash_size);
 
 int VERITY_create(struct crypt_device *cd,
                  struct crypt_params_verity *verity_hdr,
-                 const char *data_device,
-                 const char *hash_device,
-                 char *root_hash,
+                 const char *root_hash,
                  size_t root_hash_size);
 
+int VERITY_FEC_process(struct crypt_device *cd,
+                     struct crypt_params_verity *params,
+                     struct device *fec_device,
+                     int check_fec,
+                     unsigned int *errors);
+
 uint64_t VERITY_hash_offset_block(struct crypt_params_verity *params);
 
+uint64_t VERITY_hash_blocks(struct crypt_device *cd, struct crypt_params_verity *params);
+
+uint64_t VERITY_FEC_blocks(struct crypt_device *cd,
+                          struct device *fec_device,
+                          struct crypt_params_verity *params);
+
+int VERITY_UUID_generate(struct crypt_device *cd, char **uuid_string);
+
 #endif