Use microcode as CPU firmware

audit/internal/collector/board.go

@@ -8,6 +8,14 @@ import (
 	"strings"
 )
 
+var execDmidecode = func(typeNum string) (string, error) {
+	out, err := exec.Command("dmidecode", "-t", typeNum).Output()
+	if err != nil {
+		return "", err
+	}
+	return string(out), nil
+}
+
 // collectBoard runs dmidecode for types 0, 1, 2 and returns the board record
 // plus the BIOS firmware entry. Any failure is logged and returns zero values.
 func collectBoard() (schema.HardwareBoard, []schema.HardwareFirmwareRecord) {
@@ -141,9 +149,5 @@ func cleanDMIValue(v string) string {
 
 // runDmidecode executes dmidecode -t <typeNum> and returns its stdout.
 func runDmidecode(typeNum string) (string, error) {
-	out, err := exec.Command("dmidecode", "-t", typeNum).Output()
-	if err != nil {
-		return "", err
-	}
-	return string(out), nil
+	return execDmidecode(typeNum)
 }