Add search domains support (#1224)

Supporting search domains will allow users to define match domains to also
 be added to a list of search domains in their systems

Fix Windows registry key configuration for search domains using a key within the netbird interface path
This commit is contained in:
Maycon Santos
2023-10-19 19:32:42 +02:00
committed by GitHub
parent ee6be58a67
commit e59d2317fe
15 changed files with 179 additions and 189 deletions

View File

@@ -78,7 +78,7 @@ func dnsConfigToHostDNSConfig(dnsConfig nbdns.Config, ip string, port int) hostD
for _, domain := range nsConfig.Domains {
config.domains = append(config.domains, domainConfig{
domain: strings.TrimSuffix(domain, "."),
matchOnly: true,
matchOnly: !nsConfig.SearchDomainsEnabled,
})
}
}

View File

@@ -22,13 +22,11 @@ const (
interfaceConfigPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"
interfaceConfigNameServerKey = "NameServer"
interfaceConfigSearchListKey = "SearchList"
tcpipParametersPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"
)
type registryConfigurator struct {
guid string
routingAll bool
existingSearchDomains []string
guid string
routingAll bool
}
func newHostManager(wgInterface WGIface) (hostManager, error) {
@@ -148,30 +146,11 @@ func (r *registryConfigurator) restoreHostDNS() error {
log.Error(err)
}
return r.updateSearchDomains([]string{})
return r.deleteInterfaceRegistryKeyProperty(interfaceConfigSearchListKey)
}
func (r *registryConfigurator) updateSearchDomains(domains []string) error {
value, err := getLocalMachineRegistryKeyStringValue(tcpipParametersPath, interfaceConfigSearchListKey)
if err != nil {
return fmt.Errorf("unable to get current search domains failed with error: %s", err)
}
valueList := strings.Split(value, ",")
setExisting := false
if len(r.existingSearchDomains) == 0 {
r.existingSearchDomains = valueList
setExisting = true
}
if len(domains) == 0 && setExisting {
log.Infof("added %d search domains to the registry. Domain list: %s", len(domains), domains)
return nil
}
newList := append(r.existingSearchDomains, domains...)
err = setLocalMachineRegistryKeyStringValue(tcpipParametersPath, interfaceConfigSearchListKey, strings.Join(newList, ","))
err := r.setInterfaceRegistryKeyStringValue(interfaceConfigSearchListKey, strings.Join(domains, ","))
if err != nil {
return fmt.Errorf("adding search domain failed with error: %s", err)
}
@@ -235,33 +214,3 @@ func removeRegistryKeyFromDNSPolicyConfig(regKeyPath string) error {
}
return nil
}
func getLocalMachineRegistryKeyStringValue(keyPath, key string) (string, error) {
regKey, err := registry.OpenKey(registry.LOCAL_MACHINE, keyPath, registry.QUERY_VALUE)
if err != nil {
return "", fmt.Errorf("unable to open existing key from registry, key path: HKEY_LOCAL_MACHINE\\%s, error: %s", keyPath, err)
}
defer regKey.Close()
val, _, err := regKey.GetStringValue(key)
if err != nil {
return "", fmt.Errorf("getting %s value for key path HKEY_LOCAL_MACHINE\\%s failed with error: %s", key, keyPath, err)
}
return val, nil
}
func setLocalMachineRegistryKeyStringValue(keyPath, key, value string) error {
regKey, err := registry.OpenKey(registry.LOCAL_MACHINE, keyPath, registry.SET_VALUE)
if err != nil {
return fmt.Errorf("unable to open existing key from registry, key path: HKEY_LOCAL_MACHINE\\%s, error: %s", keyPath, err)
}
defer regKey.Close()
err = regKey.SetStringValue(key, value)
if err != nil {
return fmt.Errorf("setting %s value %s for key path HKEY_LOCAL_MACHINE\\%s failed with error: %s", key, value, keyPath, err)
}
return nil
}

View File

@@ -714,8 +714,9 @@ func toDNSConfig(protoDNSConfig *mgmProto.DNSConfig) nbdns.Config {
for _, nsGroup := range protoDNSConfig.GetNameServerGroups() {
dnsNSGroup := &nbdns.NameServerGroup{
Primary: nsGroup.GetPrimary(),
Domains: nsGroup.GetDomains(),
Primary: nsGroup.GetPrimary(),
Domains: nsGroup.GetDomains(),
SearchDomainsEnabled: nsGroup.GetSearchDomainsEnabled(),
}
for _, ns := range nsGroup.GetNameServers() {
dnsNS := nbdns.NameServer{