tpm: skip adding bytes if they already exists

Fixes: #384 Signed-off-by: Morten Linderud <[email protected]>
Foxboron · Oct 17, 2024 · 7863196 · 7863196
1 parent 19c6f7a
commit 7863196
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/tpm.go b/tpm.go
@@ -62,6 +62,9 @@ func GetEventlogChecksums(vfs afero.Fs, eventlog string) (*signature.SignatureDa
 	for _, event := range events {
 		switch event.Type.String() {
 		case "EV_EFI_BOOT_SERVICES_DRIVER":
+			if sigdb.BytesExists(signature.CERT_SHA256_GUID, eventlogGUID, event.Digest) {
+				continue
+			}
 			if err = sigdb.Append(signature.CERT_SHA256_GUID, eventlogGUID, event.Digest); err != nil {
 				return nil, err
 			}