* Copyright (C) 2004, Christophe Saout <christophe@saout.de>
* Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
* Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2009-2012, Milan Broz
*
* 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.
+ * 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
struct crypt_device;
struct volume_key;
struct crypt_params_verity;
+struct device;
/* Device mapper backend - kernel support flags */
#define DM_KEY_WIPE_SUPPORTED (1 << 0) /* key wipe message */
uint32_t dm_flags(void);
#define DM_ACTIVE_DEVICE (1 << 0)
-#define DM_ACTIVE_CIPHER (1 << 1)
-#define DM_ACTIVE_UUID (1 << 2)
-#define DM_ACTIVE_KEYSIZE (1 << 3)
-#define DM_ACTIVE_KEY (1 << 4)
+#define DM_ACTIVE_UUID (1 << 1)
+
+#define DM_ACTIVE_CRYPT_CIPHER (1 << 2)
+#define DM_ACTIVE_CRYPT_KEYSIZE (1 << 3)
+#define DM_ACTIVE_CRYPT_KEY (1 << 4)
+
+#define DM_ACTIVE_VERITY_ROOT_HASH (1 << 5)
+#define DM_ACTIVE_VERITY_HASH_DEVICE (1 << 6)
+#define DM_ACTIVE_VERITY_PARAMS (1 << 7)
struct crypt_dm_active_device {
enum { DM_CRYPT = 0, DM_VERITY } target;
uint64_t size; /* active device size */
uint32_t flags; /* activation flags */
const char *uuid;
+ struct device *data_device;
union {
struct {
- const char *device;
const char *cipher;
/* Active key for device */
uint64_t iv_offset; /* IV initilisation sector */
} crypt;
struct {
- const char *data_device;
- const char *hash_device;
+ struct device *hash_device;
const char *root_hash;
- size_t root_hash_size;
+ uint32_t root_hash_size;
- uint64_t hash_offset; /* hash offset (not header) */
+ uint64_t hash_offset; /* hash offset in blocks (not header) */
+ struct crypt_params_verity *vp;
} verity;
} u;
};
+void dm_backend_init(void);
+void dm_backend_exit(void);
+
+int dm_remove_device(struct crypt_device *cd, const char *name,
+ int force, uint64_t size);
+int dm_status_device(struct crypt_device *cd, const char *name);
+int dm_status_suspended(struct crypt_device *cd, const char *name);
+int dm_status_verity_ok(struct crypt_device *cd, const char *name);
+int dm_query_device(struct crypt_device *cd, const char *name,
+ uint32_t get_flags, struct crypt_dm_active_device *dmd);
+int dm_create_device(struct crypt_device *cd, const char *name,
+ const char *type, struct crypt_dm_active_device *dmd,
+ int reload);
+int dm_suspend_and_wipe_key(struct crypt_device *cd, const char *name);
+int dm_resume_and_reinstate_key(struct crypt_device *cd, const char *name,
+ size_t key_size, const char *key);
+
const char *dm_get_dir(void);
-int dm_init(struct crypt_device *context, int check_kernel);
-void dm_exit(void);
-int dm_remove_device(const char *name, int force, uint64_t size);
-int dm_status_device(const char *name);
-int dm_status_suspended(const char *name);
-int dm_status_verity_ok(const char *name);
-int dm_query_device(const char *name, uint32_t get_flags,
- struct crypt_dm_active_device *dmd);
-int dm_create_device(const char *name,
- const char *type,
- struct crypt_dm_active_device *dmd,
- void *params,
- int reload);
-int dm_suspend_and_wipe_key(const char *name);
-int dm_resume_and_reinstate_key(const char *name,
- size_t key_size,
- const char *key);
-char *dm_device_path(const char *prefix, int major, int minor);
-int dm_is_dm_device(int major, int minor);
-int dm_is_dm_kernel_name(const char *name);
-int dm_check_segment(const char *name, uint64_t offset, uint64_t size);
#endif /* _UTILS_DM_H */