libstorage-ng
Encryption.h
1 /*
2  * Copyright (c) [2016-2019] SUSE LLC
3  *
4  * All Rights Reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of version 2 of the GNU General Public License as published
8  * by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13  * more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, contact Novell, Inc.
17  *
18  * To contact Novell about this file by physical or electronic mail, you may
19  * find current contact information at www.novell.com.
20  */
21 
22 
23 #ifndef STORAGE_ENCRYPTION_H
24 #define STORAGE_ENCRYPTION_H
25 
26 
27 #include "storage/Devices/BlkDevice.h"
28 
29 
30 namespace storage
31 {
32 
33  enum class EncryptionType {
34  NONE, TWOFISH, TWOFISH_OLD, TWOFISH256_OLD, LUKS, LUKS1 = LUKS, UNKNOWN, LUKS2, PLAIN
35  };
36 
37 
38  // TODO depending on the encryption types supported the Encryption class
39  // can be dropped or be abstract
40 
41 
45  class Encryption : public BlkDevice
46  {
47  public:
48 
49  static Encryption* create(Devicegraph* devicegraph, const std::string& name);
50  static Encryption* load(Devicegraph* devicegraph, const xmlNode* node);
51 
55  EncryptionType get_type() const;
56 
62  void set_type(EncryptionType type);
63 
67  const std::string& get_password() const;
68 
72  void set_password(const std::string& password);
73 
77  const std::string& get_key_file() const;
78 
84  void set_key_file(const std::string& key_file);
85 
91  const std::string& get_cipher() const;
92 
99  void set_cipher(const std::string& cipher);
100 
106  unsigned int get_key_size() const;
107 
114  void set_key_size(unsigned int key_size);
115 
120  MountByType get_mount_by() const;
121 
126  void set_mount_by(MountByType mount_by);
127 
134  void set_default_mount_by();
135 
139  const std::vector<std::string>& get_crypt_options() const;
140 
144  void set_crypt_options(const std::vector<std::string>& crypt_options);
145 
150  bool is_in_etc_crypttab() const;
151 
155  void set_in_etc_crypttab(bool in_etc_crypttab);
156 
160  const BlkDevice* get_blk_device() const;
161 
165  const std::string& get_open_options() const;
166 
171  void set_open_options(const std::string& open_options);
172 
173  static std::vector<Encryption*> get_all(Devicegraph* devicegraph);
174  static std::vector<const Encryption*> get_all(const Devicegraph* devicegraph);
175 
176  public:
177 
178  class Impl;
179 
180  Impl& get_impl();
181  const Impl& get_impl() const;
182 
183  virtual Encryption* clone() const override;
184 
185  protected:
186 
187  Encryption(Impl* impl);
188 
189  };
190 
191 
197  bool is_encryption(const Device* device);
198 
205  Encryption* to_encryption(Device* device);
206 
210  const Encryption* to_encryption(const Device* device);
211 
212 }
213 
214 #endif
void set_cipher(const std::string &cipher)
Set the cipher.
void set_open_options(const std::string &open_options)
Set extra options for open calls.
const std::vector< std::string > & get_crypt_options() const
Get options (fourth field) in /etc/crypttab.
bool is_in_etc_crypttab() const
Query whether the LUKS device is present (probed devicegraph) or will be present (staging devicegraph...
Encryption * to_encryption(Device *device)
Converts pointer to Device to pointer to Encryption.
void set_default_mount_by()
Set the mount-by method to the global default, see Storage::get_default_mount_by().
const std::string & get_key_file() const
Get the key file.
const std::string & get_open_options() const
Get extra options for open calls.
void set_password(const std::string &password)
Set the encryption password.
void set_in_etc_crypttab(bool in_etc_crypttab)
Set whether the LUKS device will be present in /etc/crypttab.
void set_crypt_options(const std::vector< std::string > &crypt_options)
Set options (fourth field) in /etc/crypttab.
void set_mount_by(MountByType mount_by)
Set the mount-by method.
unsigned int get_key_size() const
Get the key size in bytes.
An encryption layer on a blk device.
Definition: Encryption.h:45
const std::string & get_password() const
Get the encryption password.
The master container of the libstorage.
Definition: Devicegraph.h:153
const std::string & get_cipher() const
Get the cipher.
An abstract Block Device.
Definition: BlkDevice.h:46
void set_key_file(const std::string &key_file)
Set the key file.
An abstract base class of storage devices, and a vertex in the Devicegraph.
Definition: Device.h:75
MountByType get_mount_by() const
Get the mount-by method.
void set_type(EncryptionType type)
Set the encryption type.
The storage namespace.
Definition: Actiongraph.h:37
void set_key_size(unsigned int key_size)
Set the key size in bytes.
const BlkDevice * get_blk_device() const
Return underlying blk device.
bool is_encryption(const Device *device)
Checks whether device points to an Encryption.
EncryptionType get_type() const
Get the encryption type.
MountByType
The key by which the mount program identifies a mountable.
Definition: Mountable.h:55