gitee.com/mysnapcore/mysnapd@v0.1.0/secboot/luks2/luks2.go (about) 1 // -*- Mode: Go; indent-tabs-mode: t -*- 2 3 /* 4 * Copyright (C) 2022 Canonical Ltd 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 3 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 package luks2 21 22 import ( 23 "io" 24 "os" 25 ) 26 27 var ( 28 stderr io.Writer = os.Stderr 29 ) 30 31 // SlotPriority represents the priority of a keyslot. 32 type SlotPriority int 33 34 func (p SlotPriority) String() string { 35 switch p { 36 case SlotPriorityIgnore: 37 return "ignore" 38 case SlotPriorityNormal: 39 return "normal" 40 case SlotPriorityHigh: 41 return "prefer" 42 default: 43 panic("not reached") 44 } 45 } 46 47 const ( 48 // SlotPriorityIgnore means that cryptsetup will not use the associated 49 // keyslot unless it is specified explicitly. 50 SlotPriorityIgnore SlotPriority = iota 51 52 // SlotPriorityNormal is the default keyslot priority. 53 SlotPriorityNormal 54 55 // SlotPriorityHigh means that cryptsetup will try the associated keyslot 56 // before it tries any keyslots with a priority of SlotPriorityNormal. 57 SlotPriorityHigh 58 )