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Add backend support for new device-mapper kernel options.

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This patch adds support for using keyring for volume key
and support for new integrity fields for dm-crypt.

Also helpers for searching disk by id.

To be used later.
This commit is contained in:
Milan Broz
2017-09-24 12:00:05 +02:00
parent 894e7b9357
commit c56bdee177
14 changed files with 606 additions and 37 deletions
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8
lib/utils_dm.h
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@@ -83,8 +83,8 @@ struct crypt_dm_active_device {
/* struct crypt_active_device */
uint64_t offset; /* offset in sectors */
uint64_t iv_offset; /* IV initilisation sector */
unsigned key_in_keyring:1; /* status detected key loaded via kernel keyring */
uint32_t tag_size; /* additional on-disk tag size */
uint32_t sector_size; /* encryption sector size */
} crypt;
struct {
struct device *hash_device;
@@ -136,10 +136,12 @@ int dm_create_device(struct crypt_device *cd, const char *name,
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, unsigned key_in_keyring);
const struct volume_key *vk);
const char *dm_get_dir(void);
int lookup_dm_dev_by_uuid(const char *uuid, const char *type);
/* These are DM helpers used only by utils_devpath file */
int dm_is_dm_device(int major, int minor);
int dm_is_dm_kernel_name(const char *name);