Function NewConfig

backend/wireguard/config.go:56–82

NewConfig creates a new WireGuard configuration from JSON

(config string)

// NewConfig creates a new WireGuard configuration from JSON
func NewConfig(config string) (*Config, error) {
	var wgConfig Config
	err := json.Unmarshal([]byte(config), &wgConfig)
	if err != nil {
		return nil, fmt.Errorf("failed to unmarshal config: %w", err)
	}

	// Validate configuration
	if wgConfig.InterfaceName == "" {
		wgConfig.InterfaceName = "wg0"
	}

	if wgConfig.ListenPort <= 0 {
		wgConfig.ListenPort = 51820
	}
	if wgConfig.Latency == nil {
		wgConfig.Latency = &LatencyConfig{}
	}
	if strings.TrimSpace(wgConfig.Latency.TestURL) == "" {
		wgConfig.Latency.TestURL = "https://www.gstatic.com/generate_204"
	}
	if wgConfig.Latency.TimeoutSeconds <= 0 {
		wgConfig.Latency.TimeoutSeconds = 5
	}

	return &wgConfig, nil
}

// InterfaceNetworks returns CIDR prefixes parsed from the node's core `address` list.
// Used to restrict peer AllowedIPs to subnets this interface actually serves.