mirror of
https://github.com/Control-D-Inc/ctrld.git
synced 2026-07-04 01:07:49 +02:00
Cuong Manh Le
7af59ee589
Config fetching/generating in cd mode is currently weird, error prone, and easy for user to break ctrld when using custom config. This commit reworks the flow: - Fetching config from Control D API. - No custom config, use the current default config. - If custom config presents, but there's no listener, use 0.0.0.0:53. - Try listening on current ip+port config, if ok, ctrld could be a direct listener with current setup, moving on. - If failed, trying 127.0.0.1:53. - If failed, trying current ip + port 5354 - If still failed, pick a random ip:port pair, retry until listening ok. With this flow, thing is more predictable/stable, and help removing the Config interface for router.
83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
package synology
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import (
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"fmt"
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"os"
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"os/exec"
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"github.com/Control-D-Inc/ctrld/internal/router/dnsmasq"
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"github.com/Control-D-Inc/ctrld"
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"github.com/kardianos/service"
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)
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const (
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Name = "synology"
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synologyDNSMasqConfigPath = "/etc/dhcpd/dhcpd-zzz-ctrld.conf"
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synologyDhcpdInfoPath = "/etc/dhcpd/dhcpd-zzz-ctrld.info"
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)
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type Synology struct {
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cfg *ctrld.Config
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}
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// New returns a router.Router for configuring/setup/run ctrld on Ubios routers.
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func New(cfg *ctrld.Config) *Synology {
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return &Synology{cfg: cfg}
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}
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func (s *Synology) ConfigureService(config *service.Config) error {
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return nil
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}
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func (s *Synology) Install(_ *service.Config) error {
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return nil
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}
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func (s *Synology) Uninstall(_ *service.Config) error {
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return nil
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}
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func (s *Synology) PreRun() error {
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return nil
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}
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func (s *Synology) Setup() error {
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data, err := dnsmasq.ConfTmpl(dnsmasq.ConfigContentTmpl, s.cfg)
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if err != nil {
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return err
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}
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if err := os.WriteFile(synologyDNSMasqConfigPath, []byte(data), 0600); err != nil {
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return err
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}
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if err := os.WriteFile(synologyDhcpdInfoPath, []byte(`enable="yes"`), 0600); err != nil {
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return err
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}
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if err := restartDNSMasq(); err != nil {
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return err
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}
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return nil
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}
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func (s *Synology) Cleanup() error {
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// Remove the custom config files.
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for _, f := range []string{synologyDNSMasqConfigPath, synologyDhcpdInfoPath} {
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if err := os.Remove(f); err != nil {
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return err
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}
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}
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// Restart dnsmasq service.
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if err := restartDNSMasq(); err != nil {
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return err
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}
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return nil
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}
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func restartDNSMasq() error {
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if out, err := exec.Command("/etc/rc.network", "nat-restart-dhcp").CombinedOutput(); err != nil {
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return fmt.Errorf("synologyRestartDNSMasq: %s - %w", string(out), err)
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}
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return nil
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}
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