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Use union in dm (crypt/verity) query structure.

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This commit is contained in:
Milan Broz
2012-06-08 08:58:35 +02:00
parent c35839afbc
commit b016e65daa
6 changed files with 121 additions and 88 deletions
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34
lib/utils_dm.h
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@@ -45,18 +45,32 @@ uint32_t dm_flags(void);
#define DM_ACTIVE_KEY (1 << 4)
struct crypt_dm_active_device {
const char *device;
const char *cipher;
const char *uuid;
/* Active key for device */
struct volume_key *vk;
/* struct crypt_active_device */
uint64_t offset; /* offset in sectors */
uint64_t iv_offset; /* IV initilisation sector */
enum { DM_CRYPT = 0, DM_VERITY } target;
uint64_t size; /* active device size */
uint32_t flags; /* activation flags */
const char *uuid;
union {
struct {
const char *device;
const char *cipher;
/* Active key for device */
struct volume_key *vk;
/* struct crypt_active_device */
uint64_t offset; /* offset in sectors */
uint64_t iv_offset; /* IV initilisation sector */
} crypt;
struct {
const char *data_device;
const char *hash_device;
const char *root_hash;
size_t root_hash_size;
uint64_t hash_offset; /* hash offset (not header) */
} verity;
} u;
};
struct crypt_dm_active_verity {