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Diffstat (limited to 'gpxe/src/include/gpxe/efi/Uefi/UefiMultiPhase.h')
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1 files changed, 218 insertions, 0 deletions
diff --git a/gpxe/src/include/gpxe/efi/Uefi/UefiMultiPhase.h b/gpxe/src/include/gpxe/efi/Uefi/UefiMultiPhase.h new file mode 100644 index 00000000..c72697a6 --- /dev/null +++ b/gpxe/src/include/gpxe/efi/Uefi/UefiMultiPhase.h @@ -0,0 +1,218 @@ +/** @file + This includes some definitions introduced in UEFI that will be used in both PEI and DXE phases. + + Copyright (c) 2006, 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 and has the following definition: + + @param dwLength The length of the entire certificate, + including the length of the header, in + bytes. + + @param wRevision The revision level of the WIN_CERTIFICATE + structure. The current revision level is + 0x0200. + + @param wCertificateType 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. + + @param bCertificate The actual certificate. The format of + the certificate depends on + wCertificateType. The format of the UEFI + certificates is defined below. + + +**/ +typedef struct _WIN_CERTIFICATE { + UINT32 dwLength; + UINT16 wRevision; + UINT16 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; + + +/** + + @param Hdr This is the standard WIN_CERTIFICATE header, where + wCertificateType is set to + WIN_CERT_TYPE_UEFI_GUID. + + @param CertType This is the unique id which determines the + format of the CertData. In this case, the + value is EFI_CERT_TYPE_RSA2048_SHA256_GUID. + + @param CertData This 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. + +**/ +typedef struct _WIN_CERTIFICATE_UEFI_GUID { + WIN_CERTIFICATE Hdr; + EFI_GUID CertType; + // 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. + + @param Hdr This is the standard WIN_CERTIFICATE header, where + wCertificateType is set to + WIN_CERT_TYPE_UEFI_PKCS1_15. + + @param HashAlgorithm This is the hashing algorithm which was + performed on the UEFI executable when + creating the digital signature. It is + one of the enumerated values pre-defined + in Section 26.4.1. See + EFI_HASH_ALGORITHM_x. + + @param Signature This 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. + +**/ +typedef struct _WIN_CERTIFICATE_EFI_PKCS1_15 { + WIN_CERTIFICATE Hdr; + EFI_GUID HashAlgorithm; + // 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 + + @param MonotonicCount Included in the signature of + AuthInfo.Used to ensure freshness/no + replay. Incremented during each + "Write" access. + + @param AuthInfo 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. + +**/ +typedef struct { + UINT64 MonotonicCount; + WIN_CERTIFICATE_UEFI_GUID AuthInfo; +} EFI_VARIABLE_AUTHENTICATION; + +#endif + |