fix

src/core/core.go

@@ -2,14 +2,14 @@ package core
 
 import (
 	"context"
-	"crypto/ed25519"
 	"crypto/aes"
 	"crypto/cipher"
+	"crypto/ed25519"
 	"crypto/rand"
-        "io"
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"io"
 	"io/ioutil"
 	"net"
 	"net/url"
@@ -34,7 +34,7 @@ type Core struct {
 	phony.Inbox
 	*iwe.PacketConn
 	config       *config.NodeConfig // Config
-	sgcm         map[string] cipher.AEAD
+	sgcm         map[string]cipher.AEAD
 	secret       ed25519.PrivateKey
 	public       ed25519.PublicKey
 	links        links
@@ -56,16 +56,20 @@ func (c *Core) _init() error {
 		c.log = log.New(ioutil.Discard, "", 0)
 	}
 
-	c.sgcm = make(map[string] cipher.AEAD)
+	c.sgcm = make(map[string]cipher.AEAD)
 
 	for addr, csecret := range c.config.Secrets {
 		var gcm cipher.AEAD
 		switch len(csecret) {
 		case 16, 24, 32: // Generate GCM
 			ch, err := aes.NewCipher([]byte(csecret))
-                    if err != nil { return fmt.Errorf("aes.NewCipher: %w", err) }
+			if err != nil {
+				return fmt.Errorf("aes.NewCipher: %w", err)
+			}
 			gcm, err = cipher.NewGCM(ch)
-                    if err != nil { return fmt.Errorf("cipher.NewGCM: %w", err) }
+			if err != nil {
+				return fmt.Errorf("cipher.NewGCM: %w", err)
+			}
 		default:
 			return fmt.Errorf("Secret for %s is incorrect length. Should be 16, 24 or 32 bytes", addr)
 		}
@@ -74,7 +78,9 @@ func (c *Core) _init() error {
 			c.sgcm["0"] = gcm
 		} else {
 			saddr, err := hex.DecodeString(addr)
-                if err != nil { return err }
+			if err != nil {
+				return err
+			}
 			if len(saddr) != ed25519.PublicKeySize {
 				return fmt.Errorf("PublicKey '%s' has the wrong length", addr)
 			}
@@ -239,13 +245,17 @@ func (c *Core) ReadFrom(p []byte) (n int, from net.Addr, err error) {
 		case typeSessionTraffic:
 			// This is what we want to handle here
 			gcm := c.getSecretForAddr(from)
-                        if gcm != nil { continue }
+			if gcm != nil {
+				continue
+			}
 			bs = bs[1:n]
 
 		case typeSessionEncTraffic:
 			// Encoded traddic. Decode first
 			gcm := c.getSecretForAddr(from)
-                        if gcm == nil { continue }
+			if gcm == nil {
+				continue
+			}
 			bs, err = gcm.Open(nil, bs[1:gcm.NonceSize()+1], bs[gcm.NonceSize()+1:n], nil)
 			if err != nil { // If we failed to decrypt the packet, we silently skip it.
 				err = nil
@@ -290,7 +300,7 @@ func (c *Core) WriteTo(p []byte, addr net.Addr) (n int, err error) {
 		buf = append(buf, gcm.Seal(nonce, nonce, p, nil)...)
 		n, err = c.PacketConn.WriteTo(buf, addr)
 		if n > 0 {
-                n -= 1+len(nonce)
+			n -= 1 + len(nonce)
 		}
 	}
 	return