87 lines
3.1 KiB
Go
87 lines
3.1 KiB
Go
package params
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import (
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"fmt"
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"net"
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"github.com/qdm12/gluetun/internal/models"
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libparams "github.com/qdm12/golibs/params"
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)
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// GetUser obtains the user to use to connect to the VPN servers.
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// It first tries to use the OPENVPN_USER environment variable (easier for the end user)
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// and then tries to read from the secret file openvpn_user if nothing was found.
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func (r *reader) GetUser() (user string, err error) {
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const compulsory = true
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return r.getFromEnvOrSecretFile("OPENVPN_USER", compulsory, []string{"USER"})
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}
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// GetPassword obtains the password to use to connect to the VPN servers.
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// It first tries to use the OPENVPN_PASSWORD environment variable (easier for the end user)
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// and then tries to read from the secret file openvpn_password if nothing was found.
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func (r *reader) GetPassword() (s string, err error) {
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const compulsory = true
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return r.getFromEnvOrSecretFile("OPENVPN_PASSWORD", compulsory, []string{"PASSWORD"})
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}
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// GetNetworkProtocol obtains the network protocol to use to connect to the
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// VPN servers from the environment variable PROTOCOL.
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func (r *reader) GetNetworkProtocol() (protocol models.NetworkProtocol, err error) {
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s, err := r.env.Inside("PROTOCOL", []string{"tcp", "udp"}, libparams.Default("udp"))
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return models.NetworkProtocol(s), err
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}
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// GetOpenVPNVerbosity obtains the verbosity level for verbosity between 0 and 6
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// from the environment variable OPENVPN_VERBOSITY.
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func (r *reader) GetOpenVPNVerbosity() (verbosity int, err error) {
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return r.env.IntRange("OPENVPN_VERBOSITY", 0, 6, libparams.Default("1"))
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}
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// GetOpenVPNRoot obtains if openvpn should be run as root
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// from the environment variable OPENVPN_ROOT.
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func (r *reader) GetOpenVPNRoot() (root bool, err error) {
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return r.env.YesNo("OPENVPN_ROOT", libparams.Default("no"))
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}
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// GetTargetIP obtains the IP address to override over the list of IP addresses filtered
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// from the environment variable OPENVPN_TARGET_IP.
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func (r *reader) GetTargetIP() (ip net.IP, err error) {
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s, err := r.env.Get("OPENVPN_TARGET_IP")
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if len(s) == 0 {
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return nil, nil
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} else if err != nil {
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return nil, err
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}
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ip = net.ParseIP(s)
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if ip == nil {
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return nil, fmt.Errorf("target IP address %q is not valid", s)
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}
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return ip, nil
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}
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// GetOpenVPNCipher obtains a custom cipher to use with OpenVPN
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// from the environment variable OPENVPN_CIPHER.
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func (r *reader) GetOpenVPNCipher() (cipher string, err error) {
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return r.env.Get("OPENVPN_CIPHER")
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}
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// GetOpenVPNAuth obtains a custom auth algorithm to use with OpenVPN
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// from the environment variable OPENVPN_AUTH.
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func (r *reader) GetOpenVPNAuth() (auth string, err error) {
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return r.env.Get("OPENVPN_AUTH")
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}
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// GetOpenVPNIPv6 obtains if ipv6 should be tunneled through the
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// openvpn tunnel from the environment variable OPENVPN_IPV6.
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func (r *reader) GetOpenVPNIPv6() (ipv6 bool, err error) {
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return r.env.OnOff("OPENVPN_IPV6", libparams.Default("off"))
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}
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func (r *reader) GetOpenVPNMSSFix() (mssFix uint16, err error) {
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n, err := r.env.IntRange("OPENVPN_MSSFIX", 0, 10000, libparams.Default("0"))
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if err != nil {
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return 0, err
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}
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return uint16(n), nil
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}
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