Files
gluetun/internal/provider/expressvpn/openvpnconf.go
Quentin McGaw c40d4e075e chore(validation): move functions from constants
- Move validation functions from `internal/constants` to `internal/configuration/settings/validation`
- Concatenate all OpenVPN constants in `internal/constants/openvpn.go`
2022-02-13 01:21:25 +00:00

89 lines
2.2 KiB
Go

package expressvpn
import (
"strconv"
"github.com/qdm12/gluetun/internal/configuration/settings"
"github.com/qdm12/gluetun/internal/constants"
"github.com/qdm12/gluetun/internal/models"
"github.com/qdm12/gluetun/internal/provider/utils"
)
func (p *Provider) BuildConf(connection models.Connection,
settings settings.OpenVPN) (lines []string, err error) {
if len(settings.Ciphers) == 0 {
settings.Ciphers = []string{constants.AES256cbc}
}
auth := *settings.Auth
if auth == "" {
auth = constants.SHA512
}
mssFix := *settings.MSSFix
if mssFix == 0 {
const defaultMSSFix = 1200
mssFix = defaultMSSFix
}
lines = []string{
"client",
"nobind",
"tls-exit",
"dev " + settings.Interface,
"verb " + strconv.Itoa(*settings.Verbosity),
// Expressvpn specific
"fast-io",
"fragment 1300",
"mssfix " + strconv.Itoa(int(mssFix)),
"sndbuf 524288",
"rcvbuf 524288",
"verify-x509-name Server name-prefix", // security hole I guess?
"remote-cert-tls server", // updated name of ns-cert-type
"key-direction 1",
"auth-user-pass " + constants.OpenVPNAuthConf,
"auth " + auth,
// Added constant values
"mute-replay-warnings",
"auth-nocache",
"pull-filter ignore \"auth-token\"", // prevent auth failed loops
"auth-retry nointeract",
"suppress-timestamps",
// Modified variables
connection.OpenVPNProtoLine(),
connection.OpenVPNRemoteLine(),
}
lines = append(lines, utils.CipherLines(settings.Ciphers, settings.Version)...)
if connection.Protocol == constants.UDP {
lines = append(lines, "explicit-exit-notify")
}
if settings.ProcessUser != "root" {
lines = append(lines, "user "+settings.ProcessUser)
lines = append(lines, "persist-tun")
lines = append(lines, "persist-key")
}
if !*settings.IPv6 {
lines = append(lines, `pull-filter ignore "route-ipv6"`)
lines = append(lines, `pull-filter ignore "ifconfig-ipv6"`)
}
lines = append(lines, utils.WrapOpenvpnCert(
constants.ExpressvpnCert)...)
lines = append(lines, utils.WrapOpenvpnRSAKey(
constants.ExpressvpnRSAKey)...)
lines = append(lines, utils.WrapOpenvpnTLSAuth(
constants.ExpressvpnTLSAuth)...)
lines = append(lines, utils.WrapOpenvpnCA(
constants.ExpressvpnCA)...)
lines = append(lines, "")
return lines, nil
}