1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/** @file
This includes some definitions introduced in UEFI that will be used in both PEI and DXE phases.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __UEFI_MULTIPHASE_H__
#define __UEFI_MULTIPHASE_H__
#include <gpxe/efi/ProcessorBind.h>
///
/// Enumeration of memory types introduced in UEFI.
///
typedef enum {
EfiReservedMemoryType,
EfiLoaderCode,
EfiLoaderData,
EfiBootServicesCode,
EfiBootServicesData,
EfiRuntimeServicesCode,
EfiRuntimeServicesData,
EfiConventionalMemory,
EfiUnusableMemory,
EfiACPIReclaimMemory,
EfiACPIMemoryNVS,
EfiMemoryMappedIO,
EfiMemoryMappedIOPortSpace,
EfiPalCode,
EfiMaxMemoryType
} EFI_MEMORY_TYPE;
///
/// Data structure that precedes all of the standard EFI table types.
///
typedef struct {
UINT64 Signature;
UINT32 Revision;
UINT32 HeaderSize;
UINT32 CRC32;
UINT32 Reserved;
} EFI_TABLE_HEADER;
///
/// Attributes of variable.
///
#define EFI_VARIABLE_NON_VOLATILE 0x00000001
#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
#define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
///
/// This attribute is identified by the mnemonic 'HR'
/// elsewhere in this specification.
///
#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
//
// _WIN_CERTIFICATE.wCertificateType
//
#define WIN_CERT_TYPE_EFI_PKCS115 0x0EF0
#define WIN_CERT_TYPE_EFI_GUID 0x0EF1
///
/// The WIN_CERTIFICATE structure is part of the PE/COFF specification.
///
typedef struct _WIN_CERTIFICATE {
///
/// The length of the entire certificate,
/// including the length of the header, in bytes.
///
UINT32 dwLength;
///
/// The revision level of the WIN_CERTIFICATE
/// structure. The current revision level is 0x0200.
///
UINT16 wRevision;
///
/// The certificate type. See WIN_CERT_TYPE_xxx for the UEFI
/// certificate types. The UEFI specification reserves the range of
/// certificate type values from 0x0EF0 to 0x0EFF.
///
UINT16 wCertificateType;
///
/// The following is the actual certificate. The format of
/// the certificate depends on wCertificateType.
///
/// UINT8 bCertificate[ANYSIZE_ARRAY];
///
} WIN_CERTIFICATE;
///
/// WIN_CERTIFICATE_UEFI_GUID.CertType
///
#define EFI_CERT_TYPE_RSA2048_SHA256_GUID \
{0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf } }
//
// WIN_CERTIFICATE_UEFI_GUID.CertData
//
typedef struct _EFI_CERT_BLOCK_RSA_2048_SHA256 {
UINT32 HashType;
UINT8 PublicKey[256];
UINT8 Signature[256];
} EFI_CERT_BLOCK_RSA_2048_SHA256;
///
/// Certificate which encapsulates a GUID-specific digital signature
///
typedef struct _WIN_CERTIFICATE_UEFI_GUID {
///
/// This is the standard WIN_CERTIFICATE header, where
/// wCertificateType is set to WIN_CERT_TYPE_UEFI_GUID.
///
WIN_CERTIFICATE Hdr;
///
/// This is the unique id which determines the
/// format of the CertData. In this case, the
/// value is EFI_CERT_TYPE_RSA2048_SHA256_GUID.
///
EFI_GUID CertType;
///
/// The following is the certificate data. The format of
/// the data is determined by the CertType. In this case the value is
/// EFI_CERT_BLOCK_RSA_2048_SHA256.
///
/// UINT8 CertData[ANYSIZE_ARRAY];
///
} WIN_CERTIFICATE_UEFI_GUID;
///
/// Certificate which encapsulates the RSASSA_PKCS1-v1_5 digital signature.
///
/// The WIN_CERTIFICATE_UEFI_PKCS1_15 structure is derived from
/// WIN_CERTIFICATE and encapsulate the information needed to
/// implement the RSASSA-PKCS1-v1_5 digital signature algorithm as
/// specified in RFC2437.
///
typedef struct _WIN_CERTIFICATE_EFI_PKCS1_15 {
///
/// This is the standard WIN_CERTIFICATE header, where
/// wCertificateType is set to WIN_CERT_TYPE_UEFI_PKCS1_15.
///
WIN_CERTIFICATE Hdr;
///
/// This is the hashing algorithm which was performed on the
/// UEFI executable when creating the digital signature.
///
EFI_GUID HashAlgorithm;
///
/// The following is the actual digital signature. The
/// size of the signature is the same size as the key
/// (1024-bit key is 128 bytes) and can be determined by
/// subtracting the length of the other parts of this header
/// from the total length of the certificate as found in
/// Hdr.dwLength.
///
/// UINT8 Signature[ANYSIZE_ARRAY];
///
} WIN_CERTIFICATE_EFI_PKCS1_15;
///
/// AuthInfo is a WIN_CERTIFICATE using the wCertificateType
/// WIN_CERTIFICATE_UEFI_GUID and the CertType
/// EFI_CERT_TYPE_RSA2048_SHA256. If the attribute specifies
/// authenticated access, then the Data buffer should begin with an
/// authentication descriptor prior to the data payload and DataSize
/// should reflect the the data.and descriptor size. The caller
/// shall digest the Monotonic Count value and the associated data
/// for the variable update using the SHA-256 1-way hash algorithm.
/// The ensuing the 32-byte digest will be signed using the private
/// key associated w/ the public/private 2048-bit RSA key-pair. The
/// WIN_CERTIFICATE shall be used to describe the signature of the
/// Variable data *Data. In addition, the signature will also
/// include the MonotonicCount value to guard against replay attacks
///
typedef struct {
///
/// Included in the signature of
/// AuthInfo.Used to ensure freshness/no
/// replay. Incremented during each
/// "Write" access.
///
UINT64 MonotonicCount;
///
/// Provides the authorization for the variable
/// access. It is a signature across the
/// variable data and the Monotonic Count
/// value. Caller uses Private key that is
/// associated with a public key that has been
/// provisioned via the key exchange.
///
WIN_CERTIFICATE_UEFI_GUID AuthInfo;
} EFI_VARIABLE_AUTHENTICATION;
#endif
|
