debian-forge-composer/vendor/github.com/osbuild/images/pkg/disk/luks.go
Achilleas Koutsou 0e4a9e586f split: replace internal packages with images library
Remove all the internal package that are now in the
github.com/osbuild/images package and vendor it.

A new function in internal/blueprint/ converts from an osbuild-composer
blueprint to an images blueprint.  This is necessary for keeping the
blueprint implementation in both packages.  In the future, the images
package will change the blueprint (and most likely rename it) and it
will only be part of the osbuild-composer internals and interface.  The
Convert() function will be responsible for converting the blueprint into
the new configuration object.
2023-07-10 21:11:19 +02:00

100 lines
1.7 KiB
Go

package disk
import (
"fmt"
"math/rand"
"github.com/google/uuid"
)
type Argon2id struct {
Iterations uint
Memory uint
Parallelism uint
}
type ClevisBind struct {
Pin string
Policy string
RemovePassphrase bool
}
type LUKSContainer struct {
Passphrase string
UUID string
Cipher string
Label string
Subsystem string
SectorSize uint64
// password-based key derivation function
PBKDF Argon2id
Clevis *ClevisBind
Payload Entity
}
func (lc *LUKSContainer) IsContainer() bool {
return true
}
func (lc *LUKSContainer) GetItemCount() uint {
if lc.Payload == nil {
return 0
}
return 1
}
func (lc *LUKSContainer) GetChild(n uint) Entity {
if n != 0 {
panic(fmt.Sprintf("invalid child index for LUKSContainer: %d != 0", n))
}
return lc.Payload
}
func (lc *LUKSContainer) Clone() Entity {
if lc == nil {
return nil
}
clc := &LUKSContainer{
Passphrase: lc.Passphrase,
UUID: lc.UUID,
Cipher: lc.Cipher,
Label: lc.Label,
Subsystem: lc.Subsystem,
SectorSize: lc.SectorSize,
PBKDF: Argon2id{
Iterations: lc.PBKDF.Iterations,
Memory: lc.PBKDF.Memory,
Parallelism: lc.PBKDF.Parallelism,
},
Payload: lc.Payload.Clone(),
}
if lc.Clevis != nil {
clc.Clevis = &ClevisBind{
Pin: lc.Clevis.Pin,
Policy: lc.Clevis.Policy,
RemovePassphrase: lc.Clevis.RemovePassphrase,
}
}
return clc
}
func (lc *LUKSContainer) GenUUID(rng *rand.Rand) {
if lc == nil {
return
}
if lc.UUID == "" {
lc.UUID = uuid.Must(newRandomUUIDFromReader(rng)).String()
}
}
func (lc *LUKSContainer) MetadataSize() uint64 {
if lc == nil {
return 0
}
// 16 MiB is the default size for the LUKS2 header
return 16 * 1024 * 1024
}