Merge d6d0f2dadd into 12ed43f6eb

src/BUILD_UNIX.md

@@ -33,6 +33,7 @@ You need to install the following software to build SoftEther VPN for UNIX.
 
 ```bash
 sudo yum -y groupinstall "Development Tools"
+sudo yum -y install epel-release
 sudo yum -y install cmake ncurses-devel openssl-devel libsodium-devel readline-devel zlib-devel
 ```
 

src/Mayaqua/TcpIp.c

@@ -2057,15 +2057,43 @@ bool ParsePacketL2Ex(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4_ex
 
 	if (type_id_16 > 1500)
 	{
-		if (type_id_16 == MAC_PROTO_TAGVLAN)
+		// Ordinary Ethernet frame
+		switch (type_id_16)
 		{
-			// Parse VLAN frame
-			return ParsePacketTAGVLAN(p, buf, size, no_l3, no_l3_l4_except_icmpv6);
-		}
-		else
-		{
-			// Parse Ordinary Ethernet frame
-			return ParsePacketL3(p, buf, size, type_id_16, no_l3, no_l3_l4_except_icmpv6);
+		case MAC_PROTO_ARPV4:	// ARPv4
+			if (no_l3 || no_l3_l4_except_icmpv6)
+			{
+				return true;
+			}
+
+			return ParsePacketARPv4(p, buf, size);
+
+		case MAC_PROTO_IPV4:	// IPv4
+			if (no_l3 || no_l3_l4_except_icmpv6)
+			{
+				return true;
+			}
+
+			return ParsePacketIPv4(p, buf, size);
+
+		case MAC_PROTO_IPV6:	// IPv6
+			if (no_l3)
+			{
+				return true;
+			}
+
+			return ParsePacketIPv6(p, buf, size, no_l3_l4_except_icmpv6);
+
+		default:				// Unknown
+			if (type_id_16 == p->VlanTypeID)
+			{
+				// VLAN
+				return ParsePacketTAGVLAN(p, buf, size);
+			}
+			else
+			{
+				return true;
+			}
 		}
 	}
 	else
@@ -2100,44 +2128,10 @@ bool ParsePacketL2Ex(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4_ex
 	}
 }
 
-bool ParsePacketL3(PKT *p, UCHAR *buf, UINT size, USHORT proto, bool no_l3, bool no_l3_l4_except_icmpv6)
-{
-	switch (proto)
-		{
-		case MAC_PROTO_ARPV4:	// ARPv4
-			if (no_l3 || no_l3_l4_except_icmpv6)
-			{
-				return true;
-			}
-
-			return ParsePacketARPv4(p, buf, size);
-
-		case MAC_PROTO_IPV4:	// IPv4
-			if (no_l3 || no_l3_l4_except_icmpv6)
-			{
-				return true;
-			}
-
-			return ParsePacketIPv4(p, buf, size);
-
-		case MAC_PROTO_IPV6:	// IPv6
-			if (no_l3)
-			{
-				return true;
-			}
-
-			return ParsePacketIPv6(p, buf, size, no_l3_l4_except_icmpv6);
-
-		default:				// Unknown
-			return true;
-		}
-}
-
 // TAG VLAN parsing
-bool ParsePacketTAGVLAN(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4_except_icmpv6)
+bool ParsePacketTAGVLAN(PKT *p, UCHAR *buf, UINT size)
 {
 	USHORT vlan_ushort;
-	USHORT proto_ushort;
 	// Validate arguments
 	if (p == NULL || buf == NULL)
 	{
@@ -2157,17 +2151,12 @@ bool ParsePacketTAGVLAN(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4
 	buf += sizeof(TAGVLAN_HEADER);
 	size -= sizeof(TAGVLAN_HEADER);
 
-	vlan_ushort = READ_USHORT(p->L3.TagVlanHeader->TagID);
+	vlan_ushort = READ_USHORT(p->L3.TagVlanHeader->Data);
 	vlan_ushort = vlan_ushort & 0xFFF;
 
 	p->VlanId = vlan_ushort;
 
-	proto_ushort = READ_USHORT(p->L3.TagVlanHeader->Protocol);
-	proto_ushort = proto_ushort & 0xFFFF;
-
-	
-	// Parse the L3 packet
-	return ParsePacketL3(p, buf, size, proto_ushort, no_l3, no_l3_l4_except_icmpv6);
+	return true;
 }
 
 // BPDU Parsing

src/Mayaqua/TcpIp.h

@@ -87,8 +87,7 @@ struct ARPV4_HEADER
 // Tagged VLAN header
 struct TAGVLAN_HEADER
 {
-	UCHAR TagID[2];					// TagID
-	UCHAR Protocol[2];				// Protocol
+	UCHAR Data[2];					// Data
 } GCC_PACKED;
 
 // IPv4 header
@@ -763,11 +762,10 @@ void FreePacketTCPv4(PKT *p);
 void FreePacketICMPv4(PKT *p);
 void FreePacketDHCPv4(PKT *p);
 bool ParsePacketL2Ex(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4_except_icmpv6);
-bool ParsePacketL3(PKT *p, UCHAR *buf, UINT size, USHORT proto, bool no_l3, bool no_l3_l4_except_icmpv6);
 bool ParsePacketARPv4(PKT *p, UCHAR *buf, UINT size);
 bool ParsePacketIPv4(PKT *p, UCHAR *buf, UINT size);
 bool ParsePacketBPDU(PKT *p, UCHAR *buf, UINT size);
-bool ParsePacketTAGVLAN(PKT *p, UCHAR *buf, UINT size, bool no_l3, bool no_l3_l4_except_icmpv6);
+bool ParsePacketTAGVLAN(PKT *p, UCHAR *buf, UINT size);
 bool ParseICMPv4(PKT *p, UCHAR *buf, UINT size);
 bool ParseICMPv6(PKT *p, UCHAR *buf, UINT size);
 bool ParseTCP(PKT *p, UCHAR *buf, UINT size);