7d824a5179
- Better settings tree structure logged using `qdm12/gotree` - Read settings from environment variables, then files, then secret files - Settings methods to default them, merge them and override them - `DNS_PLAINTEXT_ADDRESS` default changed to `127.0.0.1` to use DoT. Warning added if set to something else. - `HTTPPROXY_LISTENING_ADDRESS` instead of `HTTPPROXY_PORT` (with retro-compatibility)
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
package privateinternetaccess
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import (
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"errors"
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"fmt"
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"github.com/qdm12/gluetun/internal/configuration/settings"
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"github.com/qdm12/gluetun/internal/constants"
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)
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func getPort(openvpnSelection settings.OpenVPNSelection) (
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port uint16, err error) {
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customPort := *openvpnSelection.CustomPort
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tcp := *openvpnSelection.TCP
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if customPort == 0 {
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return getDefaultPort(tcp, *openvpnSelection.PIAEncPreset), nil
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}
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if err := checkPort(customPort, tcp); err != nil {
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return 0, err
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}
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return customPort, nil
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}
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func getDefaultPort(tcp bool, encryptionPreset string) (port uint16) {
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if tcp {
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switch encryptionPreset {
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case constants.PIAEncryptionPresetNone, constants.PIAEncryptionPresetNormal:
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port = 502
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case constants.PIAEncryptionPresetStrong:
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port = 501
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}
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} else {
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switch encryptionPreset {
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case constants.PIAEncryptionPresetNone, constants.PIAEncryptionPresetNormal:
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port = 1198
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case constants.PIAEncryptionPresetStrong:
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port = 1197
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}
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}
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return port
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}
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var ErrInvalidPort = errors.New("invalid port number")
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func checkPort(port uint16, tcp bool) (err error) {
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if tcp {
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switch port {
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case 80, 110, 443: //nolint:gomnd
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return nil
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default:
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return fmt.Errorf("%w: %d for protocol TCP", ErrInvalidPort, port)
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}
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}
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switch port {
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case 53, 1194, 1197, 1198, 8080, 9201: //nolint:gomnd
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return nil
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default:
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return fmt.Errorf("%w: %d for protocol UDP", ErrInvalidPort, port)
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}
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}
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