include/ehs/io/socket/ICMP.h

@@ -1,7 +1,9 @@
 #pragma once
 
+#include "ehs/system/OS.h"
+
 #ifdef EHS_OS_WINDOWS
-#include "BaseICMP.h"
+	#include "ICMP_W32.h"
 #else
 	#include "ICMP_LNX.h"
 #endif

include/ehs/io/socket/ICMP_W32.h

@@ -4,7 +4,30 @@
 
 namespace ehs
 {
-	class ICMP : public virtual BaseICMP
+	class ICMP : public BaseICMP
 	{
+	private:
+		Int_32 hdl;
+
+	public:
+		ICMP();
+
+		ICMP(IP version);
+
+		ICMP(ICMP &&icmp) noexcept;
+
+		ICMP(const ICMP &icmp);
+
+		ICMP &operator=(ICMP &&icmp) noexcept;
+
+		ICMP &operator=(const ICMP &icmp);
+
+		UInt_64 Send(const Str_8 &address, ICMP_Header header, const Byte *data, UInt_64 size) override;
+
+		UInt_64 Receive(Str_8 &address, ICMP_Header header, Serializer<UInt_64> &data) override;
+
+		void SetReceiveTimeout(UInt_64 timeout) override;
+
+		bool IsValid() const override;
     };
 }

src/io/socket/ICMP_W32.cpp

@@ -1,3 +1,187 @@
-//
-// Created by Arron Nelson on 3/26/2025.
-//
+#include "ehs/io/socket/ICMP_W32.h"
+
+#include <winsock2.h>
+#include <WS2tcpip.h>
+#include <iphlpapi.h>
+
+struct iphdr
+{
+	u_char  ip_hl:4, ip_v:4;
+	u_char  ip_tos;
+	u_short ip_len;
+	u_short ip_id;
+	u_short ip_off;
+	u_char  ip_ttl;
+	u_char  ip_p;
+	u_short ip_sum;
+	in_addr ip_src, ip_dst;
+};
+
+namespace ehs
+{
+	ICMP::ICMP()
+		: hdl(EHS_INVALID_SOCKET)
+	{
+	}
+
+	ICMP::ICMP(const IP version)
+		: BaseICMP(version)
+	{
+		hdl = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
+		if (hdl < 0)
+		{
+			EHS_LOG_INT(LogType::ERR, 0, "Failed to create ICMP socket with error #" + Str_8::FromNum(errno) + ".");
+			return;
+		}
+
+		EHS_LOG_SUCCESS();
+	}
+
+	ICMP::ICMP(ICMP &&icmp) noexcept
+		: BaseICMP((BaseICMP &&)icmp), hdl(icmp.hdl)
+	{
+		icmp.hdl = EHS_INVALID_SOCKET;
+	}
+
+	ICMP::ICMP(const ICMP &icmp)
+		: BaseICMP(icmp), hdl(icmp.hdl)
+	{
+	}
+
+	ICMP & ICMP::operator=(ICMP &&icmp) noexcept
+	{
+		if (this == &icmp)
+			return *this;
+
+		BaseICMP::operator=((BaseICMP &&)icmp);
+
+		hdl = icmp.hdl;
+
+		icmp.hdl = EHS_INVALID_SOCKET;
+
+		return *this;
+	}
+
+	ICMP & ICMP::operator=(const ICMP &icmp)
+	{
+		if (this == &icmp)
+			return *this;
+
+		BaseICMP::operator=(icmp);
+
+		hdl = icmp.hdl;
+
+		return *this;
+	}
+
+	UInt_64 ICMP::Send(const Str_8 &address, ICMP_Header header, const Byte *data, const UInt_64 size)
+	{
+		if (!IsValid())
+		{
+			EHS_LOG_INT(LogType::WARN, 0, "Socket is not initialized.");
+
+			return 0;
+		}
+
+		header.checksum = 0;
+
+		Serializer<UInt_64> payload(Endianness::LE);
+		payload.Write(header);
+		payload.Resize(payload.Size() + size);
+
+		Util::Copy(&payload[payload.GetOffset()], data, size);
+
+		payload.SetOffset(payload.GetOffset() + size);
+
+		header.checksum = ComputeChecksum((UInt_16 *)&payload[0], payload.Size());
+
+		payload.SetOffset(0);
+		payload.Write(header);
+		payload.SetOffset(payload.Size());
+
+		sockaddr_in dst_addr = {};
+		dst_addr.sin_family = AF_INET;
+		inet_pton(AF_INET, address, &(dst_addr.sin_addr));
+
+		SInt_64 sent = sendto(hdl, (const char *)&payload[0], payload.Size(), 0, (sockaddr *)&dst_addr, sizeof(dst_addr));
+		if (sent < 0)
+		{
+			EHS_LOG_INT(LogType::ERR, 0, "Failed to send packet with error #" + Str_8::FromNum(errno) + ".");
+
+			return 0;
+		}
+
+		EHS_LOG_SUCCESS();
+
+		return sent;
+	}
+
+	UInt_64 ICMP::Receive(Str_8 &address, ICMP_Header header, Serializer<UInt_64> &data)
+	{
+		if (!IsValid())
+		{
+			EHS_LOG_INT(LogType::WARN, 0, "Socket is not initialized.");
+
+			return 0;
+		}
+
+		Serializer<UInt_64> payload(Endianness::LE);
+		payload.Resize(1500);
+
+		sockaddr_in remote = {};
+		socklen_t from_len = sizeof(remote);
+
+		SInt_64 recv = recvfrom(hdl, (char *)&payload[0], 1500, 0, (sockaddr *)&remote, &from_len);
+		if (recv < 0)
+		{
+			int code = errno;
+			if (code == EAGAIN)
+				EHS_LOG_SUCCESS();
+			else
+				EHS_LOG_INT(LogType::ERR, 0, "Failed to receive packet with error #" + Str_8::FromNum(code) + ".");
+
+			return 0;
+		}
+
+		payload.Resize(recv);
+
+		char tmpAddr[INET_ADDRSTRLEN];
+
+		if (!inet_ntop(remote.sin_family, &remote.sin_addr, tmpAddr, INET_ADDRSTRLEN))
+		{
+			EHS_LOG_INT(LogType::ERR, 1, "Failed to convert IPv4 address with error #" + Str_8::FromNum(errno) + ".");
+
+			return recv;
+		}
+
+		address = tmpAddr;
+		iphdr ipHeader = payload.Read<iphdr>();
+		header = payload.Read<ICMP_Header>();
+		data = Serializer<UInt_64>(payload.GetEndianness(), &payload[payload.GetOffset()], payload.Size() - payload.GetOffset());
+
+		EHS_LOG_SUCCESS();
+
+		return recv;
+	}
+
+	void ICMP::SetReceiveTimeout(UInt_64 timeout)
+	{
+		timeval result = {};
+		result.tv_sec = (long)timeout;
+		result.tv_usec = 0;
+
+		if (setsockopt(hdl, SOL_SOCKET, SO_RCVTIMEO, (const char *)&result, sizeof(result)) < 0)
+		{
+			EHS_LOG_INT(LogType::WARN, 0, "Failed to set receive timeout with error #" + Str_8::FromNum(errno) + ".");
+
+			return;
+		}
+
+		EHS_LOG_SUCCESS();
+	}
+
+	bool ICMP::IsValid() const
+	{
+		return hdl != EHS_INVALID_SOCKET;
+	}
+}