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attestation: dont set a default for TDX MRSEAM (#3038)

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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
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Daniel Weiße 2024-04-22 14:07:24 +02:00 committed by GitHub
parent a7451fbe1c
commit 4635a6c8b1
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GPG Key ID: B5690EEEBB952194
2 changed files with 5 additions and 3 deletions
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6
internal/config/azure.go
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@ -146,8 +146,10 @@ func DefaultForAzureTDX() *AzureTDX {
PCESVN: 0,
TEETCBSVN: encoding.HexBytes{0x02, 0x01, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
QEVendorID: encoding.HexBytes{0x93, 0x9a, 0x72, 0x33, 0xf7, 0x9c, 0x4c, 0xa9, 0x94, 0x0a, 0x0d, 0xb3, 0x95, 0x7f, 0x06, 0x07},
MRSeam: encoding.HexBytes{0x36, 0x03, 0x04, 0xd3, 0x4a, 0x16, 0xaa, 0xce, 0x0a, 0x18, 0xe0, 0x9a, 0xd2, 0xd0, 0x7d, 0x2b, 0x9f, 0xd3, 0xc1, 0x74, 0x37, 0x8e, 0x5b, 0xf1, 0x08, 0x38, 0x80, 0x79, 0x82, 0x7f, 0x89, 0xff, 0x62, 0xac, 0xc5, 0xf8, 0xc4, 0x73, 0xdd, 0x40, 0x70, 0x63, 0x24, 0x83, 0x4e, 0x20, 0x29, 0x46},
XFAM: encoding.HexBytes{0xe7, 0x18, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00},
// Don't set a default for MRSEAM as it effectively prevents upgrading the SEAM module
// Quote verification still makes sure the module comes from Intel (through MRSIGNERSEAM), and is not of a lower version than expected
// MRSeam: nil,
XFAM: encoding.HexBytes{0xe7, 0x18, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00},
IntelRootKey: mustParsePEM(tdxRootPEM),
}

2
internal/config/config.go
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@ -1159,7 +1159,7 @@ type AzureTDX struct {
QEVendorID encoding.HexBytes `json:"qeVendorID" yaml:"qeVendorID"`
// description: |
// Expected 48 byte hex-encoded MR_SEAM value.
MRSeam encoding.HexBytes `json:"mrSeam" yaml:"mrSeam"`
MRSeam encoding.HexBytes `json:"mrSeam,omitempty" yaml:"mrSeam,omitempty"`
// description: |
// Expected 8 byte hex-encoded XFAM field.
XFAM encoding.HexBytes `json:"xfam" yaml:"xfam"`