Volt CLI: source-available under AGPSL v5.0

Complete infrastructure platform CLI:
- Container runtime (systemd-nspawn)
- VoltVisor VMs (Neutron Stardust / QEMU)
- Stellarium CAS (content-addressed storage)
- ORAS Registry
- GitOps integration
- Landlock LSM security
- Compose orchestration
- Mesh networking

Copyright (c) Armored Gates LLC. All rights reserved.
Licensed under AGPSL v5.0

pkg/license/fingerprint.go

@@ -0,0 +1,95 @@
+/*
+Volt Platform — Machine Fingerprint Generation
+Creates a unique, deterministic identifier for the current node
+*/
+package license
+
+import (
+	"bufio"
+	"crypto/sha256"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// GenerateFingerprint creates a machine fingerprint by hashing:
+// - /etc/machine-id
+// - CPU model from /proc/cpuinfo
+// - Total memory from /proc/meminfo
+// Returns a 32-character hex-encoded string
+func GenerateFingerprint() (string, error) {
+	machineID, err := readMachineID()
+	if err != nil {
+		return "", fmt.Errorf("failed to read machine-id: %w", err)
+	}
+
+	cpuModel, err := readCPUModel()
+	if err != nil {
+		// CPU model is best-effort
+		cpuModel = "unknown"
+	}
+
+	totalMem, err := readTotalMemory()
+	if err != nil {
+		// Memory is best-effort
+		totalMem = "unknown"
+	}
+
+	// Combine and hash
+	data := fmt.Sprintf("volt-fp:%s:%s:%s", machineID, cpuModel, totalMem)
+	hash := sha256.Sum256([]byte(data))
+
+	// Return first 32 hex chars (16 bytes)
+	return fmt.Sprintf("%x", hash[:16]), nil
+}
+
+// readMachineID reads /etc/machine-id
+func readMachineID() (string, error) {
+	data, err := os.ReadFile("/etc/machine-id")
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(string(data)), nil
+}
+
+// readCPUModel reads the CPU model from /proc/cpuinfo
+func readCPUModel() (string, error) {
+	f, err := os.Open("/proc/cpuinfo")
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "model name") {
+			parts := strings.SplitN(line, ":", 2)
+			if len(parts) == 2 {
+				return strings.TrimSpace(parts[1]), nil
+			}
+		}
+	}
+	return "", fmt.Errorf("model name not found in /proc/cpuinfo")
+}
+
+// readTotalMemory reads total memory from /proc/meminfo
+func readTotalMemory() (string, error) {
+	f, err := os.Open("/proc/meminfo")
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "MemTotal:") {
+			fields := strings.Fields(line)
+			if len(fields) >= 2 {
+				return fields[1], nil
+			}
+		}
+	}
+	return "", fmt.Errorf("MemTotal not found in /proc/meminfo")
+}