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Introduce support for internal dm suspend/resume flags.

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This commit is contained in:
Ondrej Kozina
2019-03-13 17:15:03 +01:00
committed by Milan Broz
parent f5feeab48d
commit de86ff051e
3 changed files with 31 additions and 23 deletions
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14
lib/utils_dm.h
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@@ -33,6 +33,14 @@ struct crypt_params_verity;
struct device;
struct crypt_params_integrity;
/* Device mapper internal flags */
#define DM_RESUME_PRIVATE (1 << 4) /* CRYPT_ACTIVATE_PRIVATE */
static inline uint32_t act2dmflags(uint32_t act_flags)
{
return (act_flags & DM_RESUME_PRIVATE);
}
/* Device mapper backend - kernel support flags */
#define DM_KEY_WIPE_SUPPORTED (1 << 0) /* key wipe message */
#define DM_LMK_SUPPORTED (1 << 1) /* lmk mode */
@@ -183,10 +191,10 @@ int dm_query_device(struct crypt_device *cd, const char *name,
int dm_create_device(struct crypt_device *cd, const char *name,
const char *type, struct crypt_dm_active_device *dmd);
int dm_reload_device(struct crypt_device *cd, const char *name,
struct crypt_dm_active_device *dmd, unsigned resume);
int dm_suspend_device(struct crypt_device *cd, const char *name);
struct crypt_dm_active_device *dmd, uint32_t dmflags, unsigned resume);
int dm_suspend_device(struct crypt_device *cd, const char *name, uint32_t dmflags);
int dm_suspend_and_wipe_key(struct crypt_device *cd, const char *name);
int dm_resume_device(struct crypt_device *cd, const char *name, uint32_t flags);
int dm_resume_device(struct crypt_device *cd, const char *name, uint32_t dmflags);
int dm_resume_and_reinstate_key(struct crypt_device *cd, const char *name,
const struct volume_key *vk);
int dm_error_device(struct crypt_device *cd, const char *name);