From e9aebac1a2a4732763c2f7e4428a23983d4eb6a3 Mon Sep 17 00:00:00 2001
From: bt <bt@rctt.net>
Date: Fri, 10 Apr 2026 19:31:31 +0200
Subject: [common] Exchange messages between servers

---
 core/data.go | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

(limited to 'core/data.go')

diff --git a/core/data.go b/core/data.go
index a96b56f..dd2777f 100644
--- a/core/data.go
+++ b/core/data.go
@@ -16,13 +16,14 @@ type Wrapper interface {
 type PayloadType uint8
 
 const (
-	PayloadUnknown   PayloadType = 0x00
-	PayloadSuccess               = 0x01
-	PayloadError                 = 0x02
-	PayloadHandshake             = 0x03
-	PayloadAuth                  = 0x04
-	PayloadMessage               = 0x05
-	PayloadTest                  = 0xFF
+	PayloadUnknown    PayloadType = 0x00
+	PayloadSuccess                = 0x01
+	PayloadError                  = 0x02
+	PayloadHandshake              = 0x03
+	PayloadUserAuth               = 0x04
+	PayloadMessage                = 0x05
+	PayloadServerAuth             = 0x06
+	PayloadTest                   = 0xFF
 )
 
 type ErrorType uint8
@@ -33,6 +34,14 @@ const (
 	ErrorNotFound             = 0x02
 )
 
+type ConnType uint8
+
+const (
+	ConnTypeUnknown ConnType = 0x00
+	ConnTypeUser             = 0x01
+	ConnTypeServer           = 0x02
+)
+
 type Frame struct {
 	Length  uint16
 	Type    PayloadType
@@ -99,7 +108,7 @@ func Decode(buf io.Reader) (any, error) {
 
 	err := binary.Read(buf, binary.BigEndian, &pTypeByte)
 	if err != nil {
-		return nil, fmt.Errorf("cannot read payload type: %v", err)
+		return nil, fmt.Errorf("cannot read payload type: %w", err)
 	}
 
 	pType := PayloadType(pTypeByte)
@@ -107,7 +116,7 @@ func Decode(buf io.Reader) (any, error) {
 	var pLen uint16
 	err = binary.Read(buf, binary.BigEndian, &pLen)
 	if err != nil {
-		return nil, fmt.Errorf("cannot read payload length: %v", err)
+		return nil, fmt.Errorf("cannot read payload length: %w", err)
 	}
 
 	switch pType {
@@ -117,8 +126,10 @@ func Decode(buf io.Reader) (any, error) {
 		return DecodeError(buf)
 	case PayloadHandshake:
 		return DecodeHandshake(buf)
-	case PayloadAuth:
-		return DecodeAuth(buf)
+	case PayloadUserAuth:
+		return DecodeUserAuth(buf)
+	case PayloadServerAuth:
+		return DecodeServerAuth(buf)
 	case PayloadMessage:
 		return DecodeMessage(buf)
 	case PayloadTest:
-- 
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