func comments

turnserver/internal/auth/auth.go

@@ -21,9 +21,11 @@ var (
 
 func init() {
 	os.MkdirAll("/etc/config", os.ModePerm)
+	// reads creds from disk if any present
 	loadCredsFromFile()
 }
 
+// RegisterNewHostWithTurn - add new host's creds to map and dumps it to the disk
 func RegisterNewHostWithTurn(hostID, hostPass string) {
 	authMapLock.Lock()
 	HostMap[hostID] = base64.StdEncoding.EncodeToString(turn.GenerateAuthKey(hostID, config.GetTurnHost(), hostPass))
@@ -31,6 +33,7 @@ func RegisterNewHostWithTurn(hostID, hostPass string) {
 	authMapLock.Unlock()
 }
 
+// UnRegisterNewHostWithTurn - deletes the host creds
 func UnRegisterNewHostWithTurn(hostID string) {
 	authMapLock.Lock()
 	delete(HostMap, hostID)
@@ -38,6 +41,7 @@ func UnRegisterNewHostWithTurn(hostID string) {
 	authMapLock.Unlock()
 }
 
+// dumpCredsToFile - saves the creds to file
 func dumpCredsToFile() {
 	d, err := json.MarshalIndent(HostMap, "", " ")
 	if err != nil {
@@ -51,6 +55,7 @@ func dumpCredsToFile() {
 	}
 }
 
+// loadCredsFromFile - loads the creds from disk
 func loadCredsFromFile() error {
 	d, err := os.ReadFile(backUpFilePath)
 	if err != nil {

turnserver/internal/host/host.go

@@ -14,6 +14,7 @@ import (
 	"github.com/gravitl/netmaker/turnserver/internal/utils"
 )
 
+// Register - handles the host registration
 func Register(c *gin.Context) {
 	req := models.HostTurnRegister{}
 	if err := c.ShouldBindJSON(&req); err != nil {
@@ -26,6 +27,7 @@ func Register(c *gin.Context) {
 		fmt.Sprintf("registered host (%s) successfully", req.HostID), nil)
 }
 
+// Remove - unregisters the host from turn server
 func Remove(c *gin.Context) {
 	hostID, _ := c.GetQuery("host_id")
 	if hostID == "" {

turnserver/src/turn/server.go

@@ -18,6 +18,7 @@ import (
 	"golang.org/x/sys/unix"
 )
 
+// Start - initializes and handles the turn connections
 func Start(ctx context.Context, wg *sync.WaitGroup) {
 	defer wg.Done()
 	// Create a UDP listener to pass into pion/turn
@@ -45,12 +46,12 @@ func Start(ctx context.Context, wg *sync.WaitGroup) {
 	}
 
 	relayAddressGenerator := &turn.RelayAddressGeneratorStatic{
-		RelayAddress: net.ParseIP(publicIP), // Claim that we are listening on IP passed by user
-		Address:      "0.0.0.0",             // But actually be listening on every interface
+		RelayAddress: net.ParseIP(publicIP),
+		Address:      "0.0.0.0",
 	}
 
 	packetConnConfigs := make([]turn.PacketConnConfig, 1)
-	for i := 0; i < 1; i++ {
+	for i := 0; i < 5; i++ {
 		conn, listErr := listenerConfig.ListenPacket(context.Background(), addr.Network(), addr.String())
 		if listErr != nil {
 			log.Fatalf("Failed to allocate UDP listener at %s:%s", addr.Network(), addr.String())