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Get auxblob for SEV-SNP only in TSM attester #59

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Get auxblob for SEV-SNP only in TSM attester #59

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13 changes: 12 additions & 1 deletion attesters/tsm/tsm.go
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ func (t *TSMPlugin) GetEvidence(in *compositor.EvidenceIn) *compositor.EvidenceO
if in.ContentType == format.ContentType {
req := &report.Request{
InBlob: in.Nonce,
GetAuxBlob: true,
GetAuxBlob: false,
}

options := make(map[string]string)
Expand Down Expand Up @@ -135,6 +135,17 @@ func (t *TSMPlugin) GetEvidence(in *compositor.EvidenceIn) *compositor.EvidenceO
AuxBlob: resp.AuxBlob,
}

// SEV-SNP stores cert table in auxblob. Get the report one more time to fetch the auxblob
if resp.Provider == "sev_guest" {
req.GetAuxBlob = true
resp, err := report.Get(client, req)
if err != nil {
errMsg := fmt.Errorf("failed to get TSM report: %v", err)
return getEvidenceError(errMsg)
}
out.AuxBlob = resp.AuxBlob
}

var encodeOp func() ([]byte, error)
encodeAs := "JSON"

Expand Down