Adam Ierymenko
13 years ago
29 changed files with 6762 additions and 200 deletions
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<PropertyGroup> |
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<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor> |
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<RemoveDriver>True</RemoveDriver> |
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<HardwareIdString /> |
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<CommandLine /> |
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<DeployFiles /> |
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<EnableVerifier>False</EnableVerifier> |
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<AllDrivers>False</AllDrivers> |
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<VerifyProjectOutput>True</VerifyProjectOutput> |
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<VerifyDrivers /> |
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<VerifyFlags>133563</VerifyFlags> |
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<PackageDir>$(OutDir)TapDriver Package</PackageDir> |
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@ -0,0 +1,9 @@
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; |
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; TapDriver.inf |
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; |
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|
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[Version] |
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Signature="$WINDOWS NT$" |
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Class=Sample ; TODO: edit Class |
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ClassGuid={78A1C341-4539-11d3-B88D-00C04FAD5171} ; TODO: edit ClassGuid |
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Provider=%ManufacturerName% |
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CatalogFile=TapDriver.cat |
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DriverVer= ; TODO: set DriverVer in stampinf property pages |
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|
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[DestinationDirs] |
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DefaultDestDir = 12 |
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; ================= Class section ===================== |
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[ClassInstall32] |
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Addreg=SampleClassReg |
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|
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[SampleClassReg] |
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HKR,,,0,%ClassName% |
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HKR,,Icon,,-5 |
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|
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[SourceDisksNames] |
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1 = %DiskName%,,,"" |
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[SourceDisksFiles] |
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TapDriver.sys = 1,, |
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|
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;***************************************** |
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; Install Section |
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;***************************************** |
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|
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[Manufacturer] |
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%ManufacturerName%=Standard,NT$ARCH$ |
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|
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[Standard.NT$ARCH$] |
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%TapDriver.DeviceDesc%=TapDriver_Device, Root\TapDriver ; TODO: edit hw-id |
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|
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[TapDriver_Device.NT] |
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CopyFiles=Drivers_Dir |
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|
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[Drivers_Dir] |
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TapDriver.sys |
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;-------------- Service installation |
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[TapDriver_Device.NT.Services] |
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AddService = TapDriver,%SPSVCINST_ASSOCSERVICE%, TapDriver_Service_Inst |
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|
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; -------------- TapDriver driver install sections |
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[TapDriver_Service_Inst] |
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DisplayName = %TapDriver.SVCDESC% |
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ServiceType = 1 ; SERVICE_KERNEL_DRIVER |
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StartType = 3 ; SERVICE_DEMAND_START |
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ErrorControl = 1 ; SERVICE_ERROR_NORMAL |
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ServiceBinary = %12%\TapDriver.sys |
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LoadOrderGroup = Extended Base |
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|
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; |
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;--- TapDriver_Device Coinstaller installation ------ |
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; |
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|
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[DestinationDirs] |
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TapDriver_Device_CoInstaller_CopyFiles = 11 |
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|
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[TapDriver_Device.NT.CoInstallers] |
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AddReg=TapDriver_Device_CoInstaller_AddReg |
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CopyFiles=TapDriver_Device_CoInstaller_CopyFiles |
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|
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[TapDriver_Device_CoInstaller_AddReg] |
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HKR,,CoInstallers32,0x00010000, "WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll,WdfCoInstaller" |
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|
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[TapDriver_Device_CoInstaller_CopyFiles] |
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WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll |
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|
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[SourceDisksFiles] |
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WdfCoInstaller$KMDFCOINSTALLERVERSION$.dll=1 ; make sure the number matches with SourceDisksNames |
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|
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[TapDriver_Device.NT.Wdf] |
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KmdfService = TapDriver, TapDriver_wdfsect |
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[TapDriver_wdfsect] |
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KmdfLibraryVersion = $KMDFVERSION$ |
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|
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[Strings] |
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SPSVCINST_ASSOCSERVICE= 0x00000002 |
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ManufacturerName="" ; TODO: add ManufacturerName |
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ClassName="Samples" ; TODO: edit ClassName |
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DiskName = "TapDriver Installation Disk" |
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TapDriver.DeviceDesc = "TapDriver Device" |
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TapDriver.SVCDESC = "TapDriver Service" |
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@ -0,0 +1,183 @@
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<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Win8 Release|Win32'">true</ExcludedFromBuild> |
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||||
</ItemGroup> |
||||
<ItemGroup> |
||||
<ClCompile Include="dhcp.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
<ClCompile Include="error.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
<ClCompile Include="instance.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
<ClCompile Include="macinfo.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
<ClCompile Include="mem.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
<ClCompile Include="tapdrvr.c"> |
||||
<Filter>Source Files</Filter> |
||||
</ClCompile> |
||||
</ItemGroup> |
||||
<ItemGroup> |
||||
<ClInclude Include="constants.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="dhcp.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="endian.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="error.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="lock.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="macinfo.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="proto.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="prototypes.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="tap-windows.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="types.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
<ClInclude Include="config.h"> |
||||
<Filter>Header Files</Filter> |
||||
</ClInclude> |
||||
</ItemGroup> |
||||
</Project> |
||||
@ -0,0 +1,12 @@
|
||||
#define PRODUCT_NAME "ZeroTier One Ethernet Tap" |
||||
#define PRODUCT_VERSION "1.0.0" |
||||
#define PRODUCT_VERSION_RESOURCE 1,0,0,1 |
||||
#define PRODUCT_TAP_WIN_COMPONENT_ID "ztTap100" |
||||
#define PRODUCT_TAP_WIN_MAJOR 1 |
||||
#define PRODUCT_TAP_WIN_MINOR 0 |
||||
#define PRODUCT_TAP_WIN_PROVIDER "ZeroTier Networks" |
||||
#define PRODUCT_TAP_WIN_DEVICE_DESCRIPTION PRODUCT_NAME |
||||
#define PRODUCT_TAP_WIN_RELDATE "8/1/2013" |
||||
|
||||
#define TAP_DRIVER_MAJOR_VERSION PRODUCT_TAP_WIN_MAJOR |
||||
#define TAP_DRIVER_MINOR_VERSION PRODUCT_TAP_WIN_MINOR |
||||
@ -0,0 +1,52 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//====================================================================
|
||||
// Product and Version public settings
|
||||
//====================================================================
|
||||
|
||||
#define PRODUCT_STRING PRODUCT_TAP_DEVICE_DESCRIPTION |
||||
|
||||
#define TAP_NDIS_MAJOR_VERSION 5 |
||||
#define TAP_NDIS_MINOR_VERSION 0 |
||||
|
||||
//===========================================================
|
||||
// Driver constants
|
||||
//===========================================================
|
||||
|
||||
#define ETHERNET_HEADER_SIZE (sizeof (ETH_HEADER)) |
||||
#define ETHERNET_MTU 2800 // ZeroTier One MTU
|
||||
#define ETHERNET_PACKET_SIZE (ETHERNET_MTU + ETHERNET_HEADER_SIZE) |
||||
#define DEFAULT_PACKET_LOOKAHEAD (ETHERNET_PACKET_SIZE) |
||||
|
||||
#define NIC_MAX_MCAST_LIST 32 // Max length of multicast address list
|
||||
|
||||
#define MINIMUM_MTU 576 // USE TCP Minimum MTU
|
||||
#define MAXIMUM_MTU 65536 // IP maximum MTU
|
||||
|
||||
#define PACKET_QUEUE_SIZE 64 // tap -> userspace queue size
|
||||
#define IRP_QUEUE_SIZE 16 // max number of simultaneous i/o operations from userspace
|
||||
#define INJECT_QUEUE_SIZE 16 // DHCP/ARP -> tap injection queue
|
||||
|
||||
#define TAP_LITTLE_ENDIAN // affects ntohs, htonl, etc. functions
|
||||
@ -0,0 +1,599 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//=========================
|
||||
// Code to set DHCP options
|
||||
//=========================
|
||||
|
||||
VOID |
||||
SetDHCPOpt (DHCPMsg *m, void *data, unsigned int len) |
||||
{ |
||||
if (!m->overflow) |
||||
{ |
||||
if (m->optlen + len <= DHCP_OPTIONS_BUFFER_SIZE) |
||||
{ |
||||
if (len) |
||||
{ |
||||
NdisMoveMemory (m->msg.options + m->optlen, data, len); |
||||
m->optlen += len; |
||||
} |
||||
} |
||||
else |
||||
{ |
||||
m->overflow = TRUE; |
||||
} |
||||
} |
||||
} |
||||
|
||||
VOID |
||||
SetDHCPOpt0 (DHCPMsg *msg, int type) |
||||
{ |
||||
DHCPOPT0 opt; |
||||
opt.type = (UCHAR) type; |
||||
SetDHCPOpt (msg, &opt, sizeof (opt)); |
||||
} |
||||
|
||||
VOID |
||||
SetDHCPOpt8 (DHCPMsg *msg, int type, ULONG data) |
||||
{ |
||||
DHCPOPT8 opt; |
||||
opt.type = (UCHAR) type; |
||||
opt.len = sizeof (opt.data); |
||||
opt.data = (UCHAR) data; |
||||
SetDHCPOpt (msg, &opt, sizeof (opt)); |
||||
} |
||||
|
||||
VOID |
||||
SetDHCPOpt32 (DHCPMsg *msg, int type, ULONG data) |
||||
{ |
||||
DHCPOPT32 opt; |
||||
opt.type = (UCHAR) type; |
||||
opt.len = sizeof (opt.data); |
||||
opt.data = data; |
||||
SetDHCPOpt (msg, &opt, sizeof (opt)); |
||||
} |
||||
|
||||
//==============
|
||||
// Checksum code
|
||||
//==============
|
||||
|
||||
USHORT |
||||
ip_checksum (const UCHAR *buf, const int len_ip_header) |
||||
{ |
||||
USHORT word16; |
||||
ULONG sum = 0; |
||||
int i; |
||||
|
||||
// make 16 bit words out of every two adjacent 8 bit words in the packet
|
||||
// and add them up
|
||||
for (i = 0; i < len_ip_header - 1; i += 2) { |
||||
word16 = ((buf[i] << 8) & 0xFF00) + (buf[i+1] & 0xFF); |
||||
sum += (ULONG) word16; |
||||
} |
||||
|
||||
// take only 16 bits out of the 32 bit sum and add up the carries
|
||||
while (sum >> 16) |
||||
sum = (sum & 0xFFFF) + (sum >> 16); |
||||
|
||||
// one's complement the result
|
||||
return ((USHORT) ~sum); |
||||
} |
||||
|
||||
USHORT |
||||
udp_checksum (const UCHAR *buf, |
||||
const int len_udp, |
||||
const UCHAR *src_addr, |
||||
const UCHAR *dest_addr) |
||||
{ |
||||
USHORT word16; |
||||
ULONG sum = 0; |
||||
int i; |
||||
|
||||
// make 16 bit words out of every two adjacent 8 bit words and
|
||||
// calculate the sum of all 16 bit words
|
||||
for (i = 0; i < len_udp; i += 2){ |
||||
word16 = ((buf[i] << 8) & 0xFF00) + ((i + 1 < len_udp) ? (buf[i+1] & 0xFF) : 0); |
||||
sum += word16; |
||||
} |
||||
|
||||
// add the UDP pseudo header which contains the IP source and destination addresses
|
||||
for (i = 0; i < 4; i += 2){ |
||||
word16 =((src_addr[i] << 8) & 0xFF00) + (src_addr[i+1] & 0xFF); |
||||
sum += word16; |
||||
} |
||||
for (i = 0; i < 4; i += 2){ |
||||
word16 =((dest_addr[i] << 8) & 0xFF00) + (dest_addr[i+1] & 0xFF); |
||||
sum += word16;
|
||||
} |
||||
|
||||
// the protocol number and the length of the UDP packet
|
||||
sum += (USHORT) IPPROTO_UDP + (USHORT) len_udp; |
||||
|
||||
// keep only the last 16 bits of the 32 bit calculated sum and add the carries
|
||||
while (sum >> 16) |
||||
sum = (sum & 0xFFFF) + (sum >> 16); |
||||
|
||||
// Take the one's complement of sum
|
||||
return ((USHORT) ~sum); |
||||
} |
||||
|
||||
//================================
|
||||
// Set IP and UDP packet checksums
|
||||
//================================
|
||||
|
||||
VOID |
||||
SetChecksumDHCPMsg (DHCPMsg *m) |
||||
{ |
||||
// Set IP checksum
|
||||
m->msg.pre.ip.check = htons (ip_checksum ((UCHAR *) &m->msg.pre.ip, sizeof (IPHDR))); |
||||
|
||||
// Set UDP Checksum
|
||||
m->msg.pre.udp.check = htons (udp_checksum ((UCHAR *) &m->msg.pre.udp,
|
||||
sizeof (UDPHDR) + sizeof (DHCP) + m->optlen, |
||||
(UCHAR *)&m->msg.pre.ip.saddr, |
||||
(UCHAR *)&m->msg.pre.ip.daddr)); |
||||
} |
||||
|
||||
//===================
|
||||
// DHCP message tests
|
||||
//===================
|
||||
|
||||
int |
||||
GetDHCPMessageType (const DHCP *dhcp, const int optlen) |
||||
{ |
||||
const UCHAR *p = (UCHAR *) (dhcp + 1); |
||||
int i; |
||||
|
||||
for (i = 0; i < optlen; ++i) |
||||
{ |
||||
const UCHAR type = p[i]; |
||||
const int room = optlen - i - 1; |
||||
if (type == DHCP_END) // didn't find what we were looking for
|
||||
return -1; |
||||
else if (type == DHCP_PAD) // no-operation
|
||||
; |
||||
else if (type == DHCP_MSG_TYPE) // what we are looking for
|
||||
{ |
||||
if (room >= 2) |
||||
{ |
||||
if (p[i+1] == 1) // message length should be 1
|
||||
return p[i+2]; // return message type
|
||||
} |
||||
return -1; |
||||
} |
||||
else // some other message
|
||||
{ |
||||
if (room >= 1) |
||||
{ |
||||
const int len = p[i+1]; // get message length
|
||||
i += (len + 1); // advance to next message
|
||||
} |
||||
} |
||||
} |
||||
return -1; |
||||
} |
||||
|
||||
BOOLEAN |
||||
DHCPMessageOurs (const TapAdapterPointer p_Adapter, |
||||
const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp) |
||||
{ |
||||
// Must be UDPv4 protocol
|
||||
if (!(eth->proto == htons (ETH_P_IP) && ip->protocol == IPPROTO_UDP)) |
||||
return FALSE; |
||||
|
||||
// Source MAC must be our adapter
|
||||
if (!MAC_EQUAL (eth->src, p_Adapter->m_MAC)) |
||||
return FALSE; |
||||
|
||||
// Dest MAC must be either broadcast or our virtual DHCP server
|
||||
if (!(MAC_EQUAL (eth->dest, p_Adapter->m_MAC_Broadcast) |
||||
|| MAC_EQUAL (eth->dest, p_Adapter->m_dhcp_server_mac))) |
||||
return FALSE; |
||||
|
||||
// Port numbers must be correct
|
||||
if (!(udp->dest == htons (BOOTPS_PORT) |
||||
&& udp->source == htons (BOOTPC_PORT))) |
||||
return FALSE; |
||||
|
||||
// Hardware address must be MAC addr sized
|
||||
if (!(dhcp->hlen == sizeof (MACADDR))) |
||||
return FALSE; |
||||
|
||||
// Hardware address must match our adapter
|
||||
if (!MAC_EQUAL (eth->src, dhcp->chaddr)) |
||||
return FALSE; |
||||
|
||||
return TRUE; |
||||
} |
||||
|
||||
|
||||
//=====================================================
|
||||
// Build all of DHCP packet except for DHCP options.
|
||||
// Assume that *p has been zeroed before we are called.
|
||||
//=====================================================
|
||||
|
||||
VOID |
||||
BuildDHCPPre (const TapAdapterPointer a, |
||||
DHCPPre *p, |
||||
const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp, |
||||
const int optlen, |
||||
const int type) |
||||
{ |
||||
// Should we broadcast or direct to a specific MAC / IP address?
|
||||
const BOOLEAN broadcast = (type == DHCPNAK |
||||
|| MAC_EQUAL (eth->dest, a->m_MAC_Broadcast)); |
||||
// Build ethernet header
|
||||
|
||||
COPY_MAC (p->eth.src, a->m_dhcp_server_mac); |
||||
|
||||
if (broadcast) |
||||
COPY_MAC (p->eth.dest, a->m_MAC_Broadcast); |
||||
else |
||||
COPY_MAC (p->eth.dest, eth->src); |
||||
|
||||
p->eth.proto = htons (ETH_P_IP); |
||||
|
||||
// Build IP header
|
||||
|
||||
p->ip.version_len = (4 << 4) | (sizeof (IPHDR) >> 2); |
||||
p->ip.tos = 0; |
||||
p->ip.tot_len = htons (sizeof (IPHDR) + sizeof (UDPHDR) + sizeof (DHCP) + optlen); |
||||
p->ip.id = 0; |
||||
p->ip.frag_off = 0; |
||||
p->ip.ttl = 16; |
||||
p->ip.protocol = IPPROTO_UDP; |
||||
p->ip.check = 0; |
||||
p->ip.saddr = a->m_dhcp_server_ip; |
||||
|
||||
if (broadcast) |
||||
p->ip.daddr = ~0; |
||||
else |
||||
p->ip.daddr = a->m_dhcp_addr; |
||||
|
||||
// Build UDP header
|
||||
|
||||
p->udp.source = htons (BOOTPS_PORT); |
||||
p->udp.dest = htons (BOOTPC_PORT); |
||||
p->udp.len = htons (sizeof (UDPHDR) + sizeof (DHCP) + optlen); |
||||
p->udp.check = 0; |
||||
|
||||
// Build DHCP response
|
||||
|
||||
p->dhcp.op = BOOTREPLY; |
||||
p->dhcp.htype = 1; |
||||
p->dhcp.hlen = sizeof (MACADDR); |
||||
p->dhcp.hops = 0; |
||||
p->dhcp.xid = dhcp->xid; |
||||
p->dhcp.secs = 0; |
||||
p->dhcp.flags = 0; |
||||
p->dhcp.ciaddr = 0; |
||||
|
||||
if (type == DHCPNAK) |
||||
p->dhcp.yiaddr = 0; |
||||
else |
||||
p->dhcp.yiaddr = a->m_dhcp_addr; |
||||
|
||||
p->dhcp.siaddr = a->m_dhcp_server_ip; |
||||
p->dhcp.giaddr = 0; |
||||
COPY_MAC (p->dhcp.chaddr, eth->src); |
||||
p->dhcp.magic = htonl (0x63825363); |
||||
} |
||||
//=============================
|
||||
// Build specific DHCP messages
|
||||
//=============================
|
||||
|
||||
VOID |
||||
SendDHCPMsg (const TapAdapterPointer a, |
||||
const int type, |
||||
const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp) |
||||
{ |
||||
DHCPMsg *pkt; |
||||
|
||||
if (!(type == DHCPOFFER || type == DHCPACK || type == DHCPNAK)) |
||||
{ |
||||
DEBUGP (("[TAP] SendDHCPMsg: Bad DHCP type: %d\n", type)); |
||||
return; |
||||
} |
||||
|
||||
pkt = (DHCPMsg *) MemAlloc (sizeof (DHCPMsg), TRUE); |
||||
|
||||
if (pkt) |
||||
{ |
||||
//-----------------------
|
||||
// Build DHCP options
|
||||
//-----------------------
|
||||
|
||||
// Message Type
|
||||
SetDHCPOpt8 (pkt, DHCP_MSG_TYPE, type); |
||||
|
||||
// Server ID
|
||||
SetDHCPOpt32 (pkt, DHCP_SERVER_ID, a->m_dhcp_server_ip); |
||||
|
||||
if (type == DHCPOFFER || type == DHCPACK) |
||||
{ |
||||
// Lease Time
|
||||
SetDHCPOpt32 (pkt, DHCP_LEASE_TIME, htonl (a->m_dhcp_lease_time)); |
||||
|
||||
// Netmask
|
||||
SetDHCPOpt32 (pkt, DHCP_NETMASK, a->m_dhcp_netmask); |
||||
|
||||
// Other user-defined options
|
||||
SetDHCPOpt (pkt, |
||||
a->m_dhcp_user_supplied_options_buffer, |
||||
a->m_dhcp_user_supplied_options_buffer_len); |
||||
} |
||||
|
||||
// End
|
||||
SetDHCPOpt0 (pkt, DHCP_END); |
||||
|
||||
if (!DHCPMSG_OVERFLOW (pkt)) |
||||
{ |
||||
// The initial part of the DHCP message (not including options) gets built here
|
||||
BuildDHCPPre (a, |
||||
&pkt->msg.pre, |
||||
eth, |
||||
ip, |
||||
udp, |
||||
dhcp, |
||||
DHCPMSG_LEN_OPT (pkt), |
||||
type); |
||||
|
||||
SetChecksumDHCPMsg (pkt); |
||||
|
||||
DUMP_PACKET ("DHCPMsg", |
||||
DHCPMSG_BUF (pkt), |
||||
DHCPMSG_LEN_FULL (pkt)); |
||||
|
||||
// Return DHCP response to kernel
|
||||
InjectPacketDeferred (a, |
||||
DHCPMSG_BUF (pkt), |
||||
DHCPMSG_LEN_FULL (pkt)); |
||||
} |
||||
else |
||||
{ |
||||
DEBUGP (("[TAP] SendDHCPMsg: DHCP buffer overflow\n")); |
||||
} |
||||
|
||||
MemFree (pkt, sizeof (DHCPMsg)); |
||||
} |
||||
} |
||||
|
||||
//===================================================================
|
||||
// Handle a BOOTPS packet produced by the local system to
|
||||
// resolve the address/netmask of this adapter.
|
||||
// If we are in TAP_WIN_IOCTL_CONFIG_DHCP_MASQ mode, reply
|
||||
// to the message. Return TRUE if we processed the passed
|
||||
// message, so that downstream stages can ignore it.
|
||||
//===================================================================
|
||||
|
||||
BOOLEAN |
||||
ProcessDHCP (TapAdapterPointer p_Adapter, |
||||
const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp, |
||||
int optlen) |
||||
{ |
||||
int msg_type; |
||||
|
||||
// Sanity check IP header
|
||||
if (!(ntohs (ip->tot_len) == sizeof (IPHDR) + sizeof (UDPHDR) + sizeof (DHCP) + optlen |
||||
&& (ntohs (ip->frag_off) & IP_OFFMASK) == 0)) |
||||
return TRUE; |
||||
|
||||
// Does this message belong to us?
|
||||
if (!DHCPMessageOurs (p_Adapter, eth, ip, udp, dhcp)) |
||||
return FALSE; |
||||
|
||||
msg_type = GetDHCPMessageType (dhcp, optlen); |
||||
|
||||
// Drop non-BOOTREQUEST messages
|
||||
if (dhcp->op != BOOTREQUEST) |
||||
return TRUE; |
||||
|
||||
// Drop any messages except DHCPDISCOVER or DHCPREQUEST
|
||||
if (!(msg_type == DHCPDISCOVER || msg_type == DHCPREQUEST)) |
||||
return TRUE; |
||||
|
||||
// Should we reply with DHCPOFFER, DHCPACK, or DHCPNAK?
|
||||
if (msg_type == DHCPREQUEST |
||||
&& ((dhcp->ciaddr && dhcp->ciaddr != p_Adapter->m_dhcp_addr) |
||||
|| !p_Adapter->m_dhcp_received_discover |
||||
|| p_Adapter->m_dhcp_bad_requests >= BAD_DHCPREQUEST_NAK_THRESHOLD)) |
||||
SendDHCPMsg (p_Adapter, |
||||
DHCPNAK, |
||||
eth, ip, udp, dhcp); |
||||
else |
||||
SendDHCPMsg (p_Adapter, |
||||
(msg_type == DHCPDISCOVER ? DHCPOFFER : DHCPACK), |
||||
eth, ip, udp, dhcp); |
||||
|
||||
// Remember if we received a DHCPDISCOVER
|
||||
if (msg_type == DHCPDISCOVER) |
||||
p_Adapter->m_dhcp_received_discover = TRUE; |
||||
|
||||
// Is this a bad DHCPREQUEST?
|
||||
if (msg_type == DHCPREQUEST && dhcp->ciaddr && dhcp->ciaddr != p_Adapter->m_dhcp_addr) |
||||
++p_Adapter->m_dhcp_bad_requests; |
||||
|
||||
return TRUE; |
||||
} |
||||
|
||||
#if DBG |
||||
|
||||
const char * |
||||
message_op_text (int op) |
||||
{ |
||||
switch (op) |
||||
{ |
||||
case BOOTREQUEST: |
||||
return "BOOTREQUEST"; |
||||
case BOOTREPLY: |
||||
return "BOOTREPLY"; |
||||
default: |
||||
return "???"; |
||||
} |
||||
} |
||||
|
||||
const char * |
||||
message_type_text (int type) |
||||
{ |
||||
switch (type) |
||||
{ |
||||
case DHCPDISCOVER: |
||||
return "DHCPDISCOVER"; |
||||
case DHCPOFFER: |
||||
return "DHCPOFFER"; |
||||
case DHCPREQUEST: |
||||
return "DHCPREQUEST"; |
||||
case DHCPDECLINE: |
||||
return "DHCPDECLINE"; |
||||
case DHCPACK: |
||||
return "DHCPACK"; |
||||
case DHCPNAK: |
||||
return "DHCPNAK"; |
||||
case DHCPRELEASE: |
||||
return "DHCPRELEASE"; |
||||
case DHCPINFORM: |
||||
return "DHCPINFORM"; |
||||
default: |
||||
return "???"; |
||||
} |
||||
} |
||||
|
||||
const char * |
||||
port_name (int port) |
||||
{ |
||||
switch (port) |
||||
{ |
||||
case BOOTPS_PORT: |
||||
return "BOOTPS"; |
||||
case BOOTPC_PORT: |
||||
return "BOOTPC"; |
||||
default: |
||||
return "unknown"; |
||||
} |
||||
} |
||||
|
||||
VOID |
||||
DumpDHCP (const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp, |
||||
const int optlen) |
||||
{ |
||||
DEBUGP ((" %s", message_op_text (dhcp->op))); |
||||
DEBUGP ((" %s ", message_type_text (GetDHCPMessageType (dhcp, optlen)))); |
||||
PrIP (ip->saddr); |
||||
DEBUGP ((":%s[", port_name (ntohs (udp->source)))); |
||||
PrMac (eth->src); |
||||
DEBUGP (("] -> ")); |
||||
PrIP (ip->daddr); |
||||
DEBUGP ((":%s[", port_name (ntohs (udp->dest)))); |
||||
PrMac (eth->dest); |
||||
DEBUGP (("]")); |
||||
if (dhcp->ciaddr) |
||||
{ |
||||
DEBUGP ((" ci=")); |
||||
PrIP (dhcp->ciaddr); |
||||
} |
||||
if (dhcp->yiaddr) |
||||
{ |
||||
DEBUGP ((" yi=")); |
||||
PrIP (dhcp->yiaddr); |
||||
} |
||||
if (dhcp->siaddr) |
||||
{ |
||||
DEBUGP ((" si=")); |
||||
PrIP (dhcp->siaddr); |
||||
} |
||||
if (dhcp->hlen == sizeof (MACADDR)) |
||||
{ |
||||
DEBUGP ((" ch=")); |
||||
PrMac (dhcp->chaddr); |
||||
} |
||||
|
||||
DEBUGP ((" xid=0x%08x", ntohl (dhcp->xid))); |
||||
|
||||
if (ntohl (dhcp->magic) != 0x63825363) |
||||
DEBUGP ((" ma=0x%08x", ntohl (dhcp->magic))); |
||||
if (dhcp->htype != 1) |
||||
DEBUGP ((" htype=%d", dhcp->htype)); |
||||
if (dhcp->hops) |
||||
DEBUGP ((" hops=%d", dhcp->hops)); |
||||
if (ntohs (dhcp->secs)) |
||||
DEBUGP ((" secs=%d", ntohs (dhcp->secs))); |
||||
if (ntohs (dhcp->flags)) |
||||
DEBUGP ((" flags=0x%04x", ntohs (dhcp->flags))); |
||||
|
||||
// extra stuff
|
||||
|
||||
if (ip->version_len != 0x45) |
||||
DEBUGP ((" vl=0x%02x", ip->version_len)); |
||||
if (ntohs (ip->tot_len) != sizeof (IPHDR) + sizeof (UDPHDR) + sizeof (DHCP) + optlen) |
||||
DEBUGP ((" tl=%d", ntohs (ip->tot_len))); |
||||
if (ntohs (udp->len) != sizeof (UDPHDR) + sizeof (DHCP) + optlen) |
||||
DEBUGP ((" ul=%d", ntohs (udp->len))); |
||||
|
||||
if (ip->tos) |
||||
DEBUGP ((" tos=0x%02x", ip->tos)); |
||||
if (ntohs (ip->id)) |
||||
DEBUGP ((" id=0x%04x", ntohs (ip->id))); |
||||
if (ntohs (ip->frag_off)) |
||||
DEBUGP ((" frag_off=0x%04x", ntohs (ip->frag_off))); |
||||
|
||||
DEBUGP ((" ttl=%d", ip->ttl)); |
||||
DEBUGP ((" ic=0x%04x [0x%04x]", ntohs (ip->check), |
||||
ip_checksum ((UCHAR*)ip, sizeof (IPHDR)))); |
||||
DEBUGP ((" uc=0x%04x [0x%04x/%d]", ntohs (udp->check), |
||||
udp_checksum ((UCHAR *) udp, |
||||
sizeof (UDPHDR) + sizeof (DHCP) + optlen, |
||||
(UCHAR *) &ip->saddr, |
||||
(UCHAR *) &ip->daddr), |
||||
optlen)); |
||||
|
||||
// Options
|
||||
{ |
||||
const UCHAR *opt = (UCHAR *) (dhcp + 1); |
||||
int i; |
||||
|
||||
DEBUGP ((" OPT")); |
||||
for (i = 0; i < optlen; ++i) |
||||
{ |
||||
const UCHAR data = opt[i]; |
||||
DEBUGP ((".%d", data)); |
||||
} |
||||
} |
||||
} |
||||
|
||||
#endif /* DBG */ |
||||
@ -0,0 +1,164 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#pragma pack(1) |
||||
|
||||
//===================================================
|
||||
// How many bad DHCPREQUESTs do we receive before we
|
||||
// return a NAK?
|
||||
//
|
||||
// A bad DHCPREQUEST is defined to be one where the
|
||||
// requestor doesn't know its IP address.
|
||||
//===================================================
|
||||
|
||||
#define BAD_DHCPREQUEST_NAK_THRESHOLD 3 |
||||
|
||||
//==============================================
|
||||
// Maximum number of DHCP options bytes supplied
|
||||
//==============================================
|
||||
|
||||
#define DHCP_USER_SUPPLIED_OPTIONS_BUFFER_SIZE 256 |
||||
#define DHCP_OPTIONS_BUFFER_SIZE 256 |
||||
|
||||
//===================================
|
||||
// UDP port numbers of DHCP messages.
|
||||
//===================================
|
||||
|
||||
#define BOOTPS_PORT 67 |
||||
#define BOOTPC_PORT 68 |
||||
|
||||
//===========================
|
||||
// The DHCP message structure
|
||||
//===========================
|
||||
|
||||
typedef struct { |
||||
# define BOOTREQUEST 1 |
||||
# define BOOTREPLY 2 |
||||
UCHAR op; /* message op */ |
||||
|
||||
UCHAR htype; /* hardware address type (e.g. '1' = 10Mb Ethernet) */ |
||||
UCHAR hlen; /* hardware address length (e.g. '6' for 10Mb Ethernet) */ |
||||
UCHAR hops; /* client sets to 0, may be used by relay agents */ |
||||
ULONG xid; /* transaction ID, chosen by client */ |
||||
USHORT secs; /* seconds since request process began, set by client */ |
||||
USHORT flags; |
||||
ULONG ciaddr; /* client IP address, client sets if known */ |
||||
ULONG yiaddr; /* 'your' IP address -- server's response to client */ |
||||
ULONG siaddr; /* server IP address */ |
||||
ULONG giaddr; /* relay agent IP address */ |
||||
UCHAR chaddr[16]; /* client hardware address */ |
||||
UCHAR sname[64]; /* optional server host name */ |
||||
UCHAR file[128]; /* boot file name */ |
||||
ULONG magic; /* must be 0x63825363 (network order) */ |
||||
} DHCP; |
||||
|
||||
typedef struct { |
||||
ETH_HEADER eth; |
||||
IPHDR ip; |
||||
UDPHDR udp; |
||||
DHCP dhcp; |
||||
} DHCPPre; |
||||
|
||||
typedef struct { |
||||
DHCPPre pre; |
||||
UCHAR options[DHCP_OPTIONS_BUFFER_SIZE]; |
||||
} DHCPFull; |
||||
|
||||
typedef struct { |
||||
unsigned int optlen; |
||||
BOOLEAN overflow; |
||||
DHCPFull msg; |
||||
} DHCPMsg; |
||||
|
||||
//===================
|
||||
// Macros for DHCPMSG
|
||||
//===================
|
||||
|
||||
#define DHCPMSG_LEN_BASE(p) (sizeof (DHCPPre)) |
||||
#define DHCPMSG_LEN_OPT(p) ((p)->optlen) |
||||
#define DHCPMSG_LEN_FULL(p) (DHCPMSG_LEN_BASE(p) + DHCPMSG_LEN_OPT(p)) |
||||
#define DHCPMSG_BUF(p) ((UCHAR*) &(p)->msg) |
||||
#define DHCPMSG_OVERFLOW(p) ((p)->overflow) |
||||
|
||||
//========================================
|
||||
// structs to hold individual DHCP options
|
||||
//========================================
|
||||
|
||||
typedef struct { |
||||
UCHAR type; |
||||
} DHCPOPT0; |
||||
|
||||
typedef struct { |
||||
UCHAR type; |
||||
UCHAR len; |
||||
UCHAR data; |
||||
} DHCPOPT8; |
||||
|
||||
typedef struct { |
||||
UCHAR type; |
||||
UCHAR len; |
||||
ULONG data; |
||||
} DHCPOPT32; |
||||
|
||||
#pragma pack() |
||||
|
||||
//==================
|
||||
// DHCP Option types
|
||||
//==================
|
||||
|
||||
#define DHCP_MSG_TYPE 53 /* message type (u8) */ |
||||
#define DHCP_PARM_REQ 55 /* parameter request list: c1 (u8), ... */ |
||||
#define DHCP_CLIENT_ID 61 /* client ID: type (u8), i1 (u8), ... */ |
||||
#define DHCP_IP 50 /* requested IP addr (u32) */ |
||||
#define DHCP_NETMASK 1 /* subnet mask (u32) */ |
||||
#define DHCP_LEASE_TIME 51 /* lease time sec (u32) */ |
||||
#define DHCP_RENEW_TIME 58 /* renewal time sec (u32) */ |
||||
#define DHCP_REBIND_TIME 59 /* rebind time sec (u32) */ |
||||
#define DHCP_SERVER_ID 54 /* server ID: IP addr (u32) */ |
||||
#define DHCP_PAD 0 |
||||
#define DHCP_END 255 |
||||
|
||||
//====================
|
||||
// DHCP Messages types
|
||||
//====================
|
||||
|
||||
#define DHCPDISCOVER 1 |
||||
#define DHCPOFFER 2 |
||||
#define DHCPREQUEST 3 |
||||
#define DHCPDECLINE 4 |
||||
#define DHCPACK 5 |
||||
#define DHCPNAK 6 |
||||
#define DHCPRELEASE 7 |
||||
#define DHCPINFORM 8 |
||||
|
||||
#if DBG |
||||
|
||||
VOID |
||||
DumpDHCP (const ETH_HEADER *eth, |
||||
const IPHDR *ip, |
||||
const UDPHDR *udp, |
||||
const DHCP *dhcp, |
||||
const int optlen); |
||||
|
||||
#endif |
||||
@ -0,0 +1,35 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifdef TAP_LITTLE_ENDIAN |
||||
#define ntohs(x) RtlUshortByteSwap(x) |
||||
#define htons(x) RtlUshortByteSwap(x) |
||||
#define ntohl(x) RtlUlongByteSwap(x) |
||||
#define htonl(x) RtlUlongByteSwap(x) |
||||
#else |
||||
#define ntohs(x) ((USHORT)(x)) |
||||
#define htons(x) ((USHORT)(x)) |
||||
#define ntohl(x) ((ULONG)(x)) |
||||
#define htonl(x) ((ULONG)(x)) |
||||
#endif |
||||
@ -0,0 +1,385 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//-----------------
|
||||
// DEBUGGING OUTPUT
|
||||
//-----------------
|
||||
|
||||
const char *g_LastErrorFilename; |
||||
int g_LastErrorLineNumber; |
||||
|
||||
#if DBG |
||||
|
||||
DebugOutput g_Debug; |
||||
|
||||
BOOLEAN |
||||
NewlineExists (const char *str, int len) |
||||
{ |
||||
while (len-- > 0) |
||||
{ |
||||
const char c = *str++; |
||||
if (c == '\n') |
||||
return TRUE; |
||||
else if (c == '\0') |
||||
break; |
||||
} |
||||
return FALSE; |
||||
} |
||||
|
||||
VOID |
||||
MyDebugInit (unsigned int bufsiz) |
||||
{ |
||||
NdisZeroMemory (&g_Debug, sizeof (g_Debug)); |
||||
g_Debug.text = (char *) MemAlloc (bufsiz, FALSE); |
||||
if (g_Debug.text) |
||||
g_Debug.capacity = bufsiz; |
||||
} |
||||
|
||||
VOID |
||||
MyDebugFree () |
||||
{ |
||||
if (g_Debug.text) |
||||
MemFree (g_Debug.text, g_Debug.capacity); |
||||
NdisZeroMemory (&g_Debug, sizeof (g_Debug)); |
||||
} |
||||
|
||||
VOID |
||||
MyDebugPrint (const unsigned char* format, ...) |
||||
{ |
||||
if (g_Debug.text && g_Debug.capacity > 0 && CAN_WE_PRINT) |
||||
{ |
||||
BOOLEAN owned; |
||||
ACQUIRE_MUTEX_ADAPTIVE (&g_Debug.lock, owned); |
||||
if (owned) |
||||
{ |
||||
const int remaining = (int)g_Debug.capacity - (int)g_Debug.out; |
||||
|
||||
if (remaining > 0) |
||||
{ |
||||
va_list args; |
||||
NTSTATUS status; |
||||
char *end; |
||||
|
||||
#ifdef DBG_PRINT |
||||
va_start (args, format); |
||||
vDbgPrintEx (DPFLTR_IHVNETWORK_ID, DPFLTR_INFO_LEVEL, format, args); |
||||
va_end (args); |
||||
#endif |
||||
va_start (args, format); |
||||
status = RtlStringCchVPrintfExA (g_Debug.text + g_Debug.out, |
||||
remaining, |
||||
&end, |
||||
NULL, |
||||
STRSAFE_NO_TRUNCATION | STRSAFE_IGNORE_NULLS, |
||||
format, |
||||
args); |
||||
va_end (args); |
||||
va_start (args, format); |
||||
vDbgPrintEx(DPFLTR_IHVDRIVER_ID , 1, format, args); |
||||
va_end (args); |
||||
if (status == STATUS_SUCCESS) |
||||
g_Debug.out = (unsigned int) (end - g_Debug.text); |
||||
else |
||||
g_Debug.error = TRUE; |
||||
} |
||||
else |
||||
g_Debug.error = TRUE; |
||||
|
||||
RELEASE_MUTEX (&g_Debug.lock); |
||||
} |
||||
else |
||||
g_Debug.error = TRUE; |
||||
} |
||||
} |
||||
|
||||
BOOLEAN |
||||
GetDebugLine (char *buf, const int len) |
||||
{ |
||||
static const char *truncated = "[OUTPUT TRUNCATED]\n"; |
||||
BOOLEAN ret = FALSE; |
||||
|
||||
NdisZeroMemory (buf, len); |
||||
|
||||
if (g_Debug.text && g_Debug.capacity > 0) |
||||
{ |
||||
BOOLEAN owned; |
||||
ACQUIRE_MUTEX_ADAPTIVE (&g_Debug.lock, owned); |
||||
if (owned) |
||||
{ |
||||
int i = 0; |
||||
|
||||
if (g_Debug.error || NewlineExists (g_Debug.text + g_Debug.in, (int)g_Debug.out - (int)g_Debug.in)) |
||||
{ |
||||
while (i < (len - 1) && g_Debug.in < g_Debug.out) |
||||
{ |
||||
const char c = g_Debug.text[g_Debug.in++]; |
||||
if (c == '\n') |
||||
break; |
||||
buf[i++] = c; |
||||
} |
||||
if (i < len) |
||||
buf[i] = '\0'; |
||||
} |
||||
|
||||
if (!i) |
||||
{ |
||||
if (g_Debug.in == g_Debug.out) |
||||
{ |
||||
g_Debug.in = g_Debug.out = 0; |
||||
if (g_Debug.error) |
||||
{ |
||||
const unsigned int tlen = strlen (truncated); |
||||
if (tlen < g_Debug.capacity) |
||||
{ |
||||
NdisMoveMemory (g_Debug.text, truncated, tlen+1); |
||||
g_Debug.out = tlen; |
||||
} |
||||
g_Debug.error = FALSE; |
||||
} |
||||
} |
||||
} |
||||
else |
||||
ret = TRUE; |
||||
|
||||
RELEASE_MUTEX (&g_Debug.lock); |
||||
}
|
||||
} |
||||
return ret; |
||||
} |
||||
|
||||
VOID |
||||
MyAssert (const unsigned char *file, int line) |
||||
{ |
||||
DEBUGP (("MYASSERT failed %s/%d\n", file, line)); |
||||
KeBugCheckEx (0x0F00BABA, |
||||
(ULONG_PTR) line, |
||||
(ULONG_PTR) 0, |
||||
(ULONG_PTR) 0, |
||||
(ULONG_PTR) 0); |
||||
} |
||||
|
||||
VOID |
||||
PrMac (const MACADDR mac) |
||||
{ |
||||
DEBUGP (("%x:%x:%x:%x:%x:%x", |
||||
mac[0], mac[1], mac[2], |
||||
mac[3], mac[4], mac[5])); |
||||
} |
||||
|
||||
VOID |
||||
PrIP (IPADDR ip_addr) |
||||
{ |
||||
const unsigned char *ip = (const unsigned char *) &ip_addr; |
||||
|
||||
DEBUGP (("%d.%d.%d.%d", |
||||
ip[0], ip[1], ip[2], ip[3])); |
||||
} |
||||
|
||||
const char * |
||||
PrIPProto (int proto) |
||||
{ |
||||
switch (proto) |
||||
{ |
||||
case IPPROTO_UDP: |
||||
return "UDP"; |
||||
case IPPROTO_TCP: |
||||
return "TCP"; |
||||
case IPPROTO_ICMP: |
||||
return "ICMP"; |
||||
case IPPROTO_IGMP: |
||||
return "IGMP"; |
||||
default: |
||||
return "???"; |
||||
} |
||||
} |
||||
|
||||
VOID |
||||
DumpARP (const char *prefix, const ARP_PACKET *arp) |
||||
{ |
||||
DEBUGP (("%s ARP src=", prefix)); |
||||
PrMac (arp->m_MAC_Source); |
||||
DEBUGP ((" dest=")); |
||||
PrMac (arp->m_MAC_Destination); |
||||
DEBUGP ((" OP=0x%04x", |
||||
(int)ntohs(arp->m_ARP_Operation))); |
||||
DEBUGP ((" M=0x%04x(%d)", |
||||
(int)ntohs(arp->m_MAC_AddressType), |
||||
(int)arp->m_MAC_AddressSize)); |
||||
DEBUGP ((" P=0x%04x(%d)", |
||||
(int)ntohs(arp->m_PROTO_AddressType), |
||||
(int)arp->m_PROTO_AddressSize)); |
||||
|
||||
DEBUGP ((" MacSrc=")); |
||||
PrMac (arp->m_ARP_MAC_Source); |
||||
DEBUGP ((" MacDest=")); |
||||
PrMac (arp->m_ARP_MAC_Destination); |
||||
|
||||
DEBUGP ((" IPSrc=")); |
||||
PrIP (arp->m_ARP_IP_Source); |
||||
DEBUGP ((" IPDest=")); |
||||
PrIP (arp->m_ARP_IP_Destination); |
||||
|
||||
DEBUGP (("\n")); |
||||
} |
||||
|
||||
struct ethpayload { |
||||
ETH_HEADER eth; |
||||
UCHAR payload[DEFAULT_PACKET_LOOKAHEAD]; |
||||
}; |
||||
|
||||
VOID |
||||
DumpPacket2 (const char *prefix, |
||||
const ETH_HEADER *eth, |
||||
const unsigned char *data, |
||||
unsigned int len) |
||||
{ |
||||
struct ethpayload *ep = (struct ethpayload *) MemAlloc (sizeof (struct ethpayload), TRUE); |
||||
if (ep) |
||||
{ |
||||
if (len > DEFAULT_PACKET_LOOKAHEAD) |
||||
len = DEFAULT_PACKET_LOOKAHEAD; |
||||
ep->eth = *eth; |
||||
NdisMoveMemory (ep->payload, data, len); |
||||
DumpPacket (prefix, (unsigned char *) ep, sizeof (ETH_HEADER) + len); |
||||
MemFree (ep, sizeof (struct ethpayload)); |
||||
} |
||||
} |
||||
|
||||
VOID |
||||
DumpPacket (const char *prefix, |
||||
const unsigned char *data, |
||||
unsigned int len) |
||||
{ |
||||
const ETH_HEADER *eth = (const ETH_HEADER *) data; |
||||
const IPHDR *ip = (const IPHDR *) (data + sizeof (ETH_HEADER)); |
||||
|
||||
if (len < sizeof (ETH_HEADER)) |
||||
{ |
||||
DEBUGP (("%s TRUNCATED PACKET LEN=%d\n", prefix, len)); |
||||
return; |
||||
} |
||||
|
||||
// ARP Packet?
|
||||
if (len >= sizeof (ARP_PACKET) && eth->proto == htons (ETH_P_ARP)) |
||||
{ |
||||
DumpARP (prefix, (const ARP_PACKET *) data); |
||||
return; |
||||
} |
||||
|
||||
// IPv4 packet?
|
||||
if (len >= (sizeof (IPHDR) + sizeof (ETH_HEADER)) |
||||
&& eth->proto == htons (ETH_P_IP) |
||||
&& IPH_GET_VER (ip->version_len) == 4) |
||||
{ |
||||
const int hlen = IPH_GET_LEN (ip->version_len); |
||||
const int blen = len - sizeof (ETH_HEADER); |
||||
BOOLEAN did = FALSE; |
||||
|
||||
DEBUGP (("%s IPv4 %s[%d]", prefix, PrIPProto (ip->protocol), len)); |
||||
|
||||
if (!(ntohs (ip->tot_len) == blen && hlen <= blen)) |
||||
{ |
||||
DEBUGP ((" XXX")); |
||||
return; |
||||
} |
||||
|
||||
// TCP packet?
|
||||
if (ip->protocol == IPPROTO_TCP |
||||
&& blen - hlen >= (sizeof (TCPHDR))) |
||||
{ |
||||
const TCPHDR *tcp = (TCPHDR *) (data + sizeof (ETH_HEADER) + hlen); |
||||
DEBUGP ((" ")); |
||||
PrIP (ip->saddr); |
||||
DEBUGP ((":%d", ntohs (tcp->source))); |
||||
DEBUGP ((" -> ")); |
||||
PrIP (ip->daddr); |
||||
DEBUGP ((":%d", ntohs (tcp->dest))); |
||||
did = TRUE; |
||||
} |
||||
|
||||
// UDP packet?
|
||||
else if ((ntohs (ip->frag_off) & IP_OFFMASK) == 0 |
||||
&& ip->protocol == IPPROTO_UDP |
||||
&& blen - hlen >= (sizeof (UDPHDR))) |
||||
{ |
||||
const UDPHDR *udp = (UDPHDR *) (data + sizeof (ETH_HEADER) + hlen); |
||||
|
||||
// DHCP packet?
|
||||
if ((udp->dest == htons (BOOTPC_PORT) || udp->dest == htons (BOOTPS_PORT)) |
||||
&& blen - hlen >= (sizeof (UDPHDR) + sizeof (DHCP))) |
||||
{ |
||||
const DHCP *dhcp = (DHCP *) (data |
||||
+ hlen |
||||
+ sizeof (ETH_HEADER) |
||||
+ sizeof (UDPHDR)); |
||||
|
||||
int optlen = len |
||||
- sizeof (ETH_HEADER) |
||||
- hlen |
||||
- sizeof (UDPHDR) |
||||
- sizeof (DHCP); |
||||
|
||||
if (optlen < 0) |
||||
optlen = 0; |
||||
|
||||
DumpDHCP (eth, ip, udp, dhcp, optlen); |
||||
did = TRUE; |
||||
} |
||||
|
||||
if (!did) |
||||
{ |
||||
DEBUGP ((" ")); |
||||
PrIP (ip->saddr); |
||||
DEBUGP ((":%d", ntohs (udp->source))); |
||||
DEBUGP ((" -> ")); |
||||
PrIP (ip->daddr); |
||||
DEBUGP ((":%d", ntohs (udp->dest))); |
||||
did = TRUE; |
||||
} |
||||
} |
||||
|
||||
if (!did) |
||||
{ |
||||
DEBUGP ((" ipproto=%d ", ip->protocol)); |
||||
PrIP (ip->saddr); |
||||
DEBUGP ((" -> ")); |
||||
PrIP (ip->daddr); |
||||
} |
||||
|
||||
DEBUGP (("\n")); |
||||
return; |
||||
} |
||||
|
||||
{ |
||||
DEBUGP (("%s ??? src=", prefix)); |
||||
PrMac (eth->src); |
||||
DEBUGP ((" dest=")); |
||||
PrMac (eth->dest); |
||||
DEBUGP ((" proto=0x%04x len=%d\n", |
||||
(int) ntohs(eth->proto), |
||||
len)); |
||||
} |
||||
} |
||||
|
||||
#endif |
||||
@ -0,0 +1,88 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//-----------------
|
||||
// DEBUGGING OUTPUT
|
||||
//-----------------
|
||||
|
||||
#define NOTE_ERROR() \ |
||||
{ \
|
||||
g_LastErrorFilename = __FILE__; \
|
||||
g_LastErrorLineNumber = __LINE__; \
|
||||
} |
||||
|
||||
#if DBG |
||||
|
||||
typedef struct { |
||||
unsigned int in; |
||||
unsigned int out; |
||||
unsigned int capacity; |
||||
char *text; |
||||
BOOLEAN error; |
||||
MUTEX lock; |
||||
} DebugOutput; |
||||
|
||||
VOID MyDebugPrint (const unsigned char* format, ...); |
||||
|
||||
VOID MyAssert (const unsigned char *file, int line); |
||||
|
||||
VOID DumpPacket (const char *prefix, |
||||
const unsigned char *data, |
||||
unsigned int len); |
||||
|
||||
VOID DumpPacket2 (const char *prefix, |
||||
const ETH_HEADER *eth, |
||||
const unsigned char *data, |
||||
unsigned int len); |
||||
|
||||
#define CAN_WE_PRINT (DEBUGP_AT_DISPATCH || KeGetCurrentIrql () < DISPATCH_LEVEL) |
||||
|
||||
#if ALSO_DBGPRINT |
||||
#define DEBUGP(fmt) { MyDebugPrint fmt; if (CAN_WE_PRINT) DbgPrint fmt; } |
||||
#else |
||||
#define DEBUGP(fmt) { MyDebugPrint fmt; } |
||||
#endif |
||||
|
||||
#define MYASSERT(exp) \ |
||||
{ \
|
||||
if (!(exp)) \
|
||||
{ \
|
||||
MyAssert(__FILE__, __LINE__); \
|
||||
} \
|
||||
} |
||||
|
||||
#define DUMP_PACKET(prefix, data, len) \ |
||||
DumpPacket (prefix, data, len) |
||||
|
||||
#define DUMP_PACKET2(prefix, eth, data, len) \ |
||||
DumpPacket2 (prefix, eth, data, len) |
||||
|
||||
#else |
||||
|
||||
#define DEBUGP(fmt) |
||||
#define MYASSERT(exp) |
||||
#define DUMP_PACKET(prefix, data, len) |
||||
#define DUMP_PACKET2(prefix, eth, data, len) |
||||
|
||||
#endif |
||||
@ -0,0 +1,241 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#define INSTANCE_KEY(a) ((PVOID)((a)->m_Extension.m_TapDevice)) |
||||
|
||||
#define N_INSTANCE_BUCKETS 256 |
||||
|
||||
typedef struct _INSTANCE { |
||||
struct _INSTANCE *next; |
||||
TapAdapterPointer m_Adapter; |
||||
} INSTANCE; |
||||
|
||||
typedef struct { |
||||
INSTANCE *list; |
||||
MUTEX lock; |
||||
} INSTANCE_BUCKET; |
||||
|
||||
typedef struct { |
||||
INSTANCE_BUCKET buckets[N_INSTANCE_BUCKETS]; |
||||
} INSTANCE_HASH; |
||||
|
||||
INSTANCE_HASH *g_InstanceHash = NULL; |
||||
|
||||
// must return a hash >= 0 and < N_INSTANCE_BUCKETS
|
||||
int |
||||
InstanceHashValue (PVOID addr) |
||||
{ |
||||
UCHAR *p = (UCHAR *) &addr; |
||||
|
||||
if (sizeof (addr) == 4) |
||||
return p[0] ^ p[1] ^ p[2] ^ p[3]; |
||||
else if (sizeof (addr) == 8) |
||||
return p[0] ^ p[1] ^ p[2] ^ p[3] ^ p[4] ^ p[5] ^ p[6] ^ p[7]; |
||||
else |
||||
{ |
||||
MYASSERT (0); |
||||
} |
||||
} |
||||
|
||||
BOOLEAN |
||||
InitInstanceList (VOID) |
||||
{ |
||||
MYASSERT (g_InstanceHash == NULL); |
||||
g_InstanceHash = MemAlloc (sizeof (INSTANCE_HASH), TRUE); |
||||
if (g_InstanceHash) |
||||
{ |
||||
int i; |
||||
for (i = 0; i < N_INSTANCE_BUCKETS; ++i) |
||||
INIT_MUTEX (&g_InstanceHash->buckets[i].lock); |
||||
return TRUE; |
||||
} |
||||
else |
||||
return FALSE; |
||||
} |
||||
|
||||
int |
||||
NInstances (VOID) |
||||
{ |
||||
int i, n = 0; |
||||
|
||||
if (g_InstanceHash) |
||||
{ |
||||
for (i = 0; i < N_INSTANCE_BUCKETS; ++i) |
||||
{ |
||||
BOOLEAN got_lock; |
||||
INSTANCE_BUCKET *ib = &g_InstanceHash->buckets[i]; |
||||
ACQUIRE_MUTEX_ADAPTIVE (&ib->lock, got_lock); |
||||
|
||||
if (got_lock) |
||||
{ |
||||
INSTANCE *current; |
||||
for (current = ib->list; current != NULL; current = current->next) |
||||
++n; |
||||
RELEASE_MUTEX (&ib->lock); |
||||
} |
||||
else |
||||
return -1; |
||||
} |
||||
} |
||||
|
||||
return n; |
||||
} |
||||
|
||||
int |
||||
InstanceMaxBucketSize (VOID) |
||||
{ |
||||
int i, n = 0; |
||||
|
||||
if (g_InstanceHash) |
||||
{ |
||||
for (i = 0; i < N_INSTANCE_BUCKETS; ++i) |
||||
{ |
||||
BOOLEAN got_lock; |
||||
int bucket_size = 0; |
||||
INSTANCE_BUCKET *ib = &g_InstanceHash->buckets[i]; |
||||
ACQUIRE_MUTEX_ADAPTIVE (&ib->lock, got_lock); |
||||
|
||||
if (got_lock) |
||||
{ |
||||
INSTANCE *current; |
||||
for (current = ib->list; current != NULL; current = current->next) |
||||
++bucket_size; |
||||
if (bucket_size > n) |
||||
n = bucket_size; |
||||
RELEASE_MUTEX (&ib->lock); |
||||
} |
||||
else |
||||
return -1; |
||||
} |
||||
} |
||||
|
||||
return n; |
||||
} |
||||
|
||||
VOID |
||||
FreeInstanceList (VOID) |
||||
{ |
||||
if (g_InstanceHash) |
||||
{ |
||||
MYASSERT (NInstances() == 0); |
||||
MemFree (g_InstanceHash, sizeof (INSTANCE_HASH)); |
||||
g_InstanceHash = NULL; |
||||
} |
||||
} |
||||
|
||||
BOOLEAN |
||||
AddAdapterToInstanceList (TapAdapterPointer p_Adapter) |
||||
{ |
||||
BOOLEAN got_lock; |
||||
BOOLEAN ret = FALSE; |
||||
const int hash = InstanceHashValue(INSTANCE_KEY(p_Adapter)); |
||||
INSTANCE_BUCKET *ib = &g_InstanceHash->buckets[hash]; |
||||
|
||||
DEBUGP (("[TAP] AddAdapterToInstanceList hash=%d\n", hash)); |
||||
|
||||
ACQUIRE_MUTEX_ADAPTIVE (&ib->lock, got_lock); |
||||
|
||||
if (got_lock) |
||||
{ |
||||
INSTANCE *i = MemAlloc (sizeof (INSTANCE), FALSE); |
||||
if (i) |
||||
{ |
||||
MYASSERT (p_Adapter); |
||||
i->m_Adapter = p_Adapter; |
||||
i->next = ib->list; |
||||
ib->list = i; |
||||
ret = TRUE; |
||||
} |
||||
RELEASE_MUTEX (&ib->lock); |
||||
} |
||||
|
||||
return ret; |
||||
} |
||||
|
||||
BOOLEAN |
||||
RemoveAdapterFromInstanceList (TapAdapterPointer p_Adapter) |
||||
{ |
||||
BOOLEAN got_lock; |
||||
BOOLEAN ret = FALSE; |
||||
INSTANCE_BUCKET *ib = &g_InstanceHash->buckets[InstanceHashValue(INSTANCE_KEY(p_Adapter))]; |
||||
|
||||
ACQUIRE_MUTEX_ADAPTIVE (&ib->lock, got_lock); |
||||
|
||||
if (got_lock) |
||||
{ |
||||
INSTANCE *current, *prev=NULL; |
||||
for (current = ib->list; current != NULL; current = current->next) |
||||
{ |
||||
if (current->m_Adapter == p_Adapter) // found match
|
||||
{ |
||||
if (prev) |
||||
prev->next = current->next; |
||||
else |
||||
ib->list = current->next; |
||||
MemFree (current->m_Adapter, sizeof (TapAdapter)); |
||||
MemFree (current, sizeof (INSTANCE)); |
||||
ret = TRUE; |
||||
break; |
||||
} |
||||
prev = current; |
||||
} |
||||
RELEASE_MUTEX (&ib->lock); |
||||
} |
||||
|
||||
return ret; |
||||
} |
||||
|
||||
TapAdapterPointer |
||||
LookupAdapterInInstanceList (PDEVICE_OBJECT p_DeviceObject) |
||||
{ |
||||
BOOLEAN got_lock; |
||||
TapAdapterPointer ret = NULL; |
||||
INSTANCE_BUCKET *ib = &g_InstanceHash->buckets[InstanceHashValue((PVOID)p_DeviceObject)]; |
||||
|
||||
ACQUIRE_MUTEX_ADAPTIVE (&ib->lock, got_lock); |
||||
|
||||
if (got_lock) |
||||
{ |
||||
INSTANCE *current, *prev=NULL; |
||||
for (current = ib->list; current != NULL; current = current->next) |
||||
{ |
||||
if (p_DeviceObject == INSTANCE_KEY (current->m_Adapter)) // found match
|
||||
{ |
||||
// move it to head of list
|
||||
if (prev) |
||||
{ |
||||
prev->next = current->next; |
||||
current->next = ib->list; |
||||
ib->list = current; |
||||
} |
||||
ret = ib->list->m_Adapter; |
||||
break; |
||||
} |
||||
prev = current; |
||||
} |
||||
RELEASE_MUTEX (&ib->lock); |
||||
} |
||||
|
||||
return ret; |
||||
} |
||||
@ -0,0 +1,75 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
typedef struct |
||||
{ |
||||
volatile long count; |
||||
} MUTEX; |
||||
|
||||
#define MUTEX_SLEEP_TIME 10000 // microseconds
|
||||
|
||||
#define INIT_MUTEX(m) { (m)->count = 0; } |
||||
|
||||
#define ACQUIRE_MUTEX_BLOCKING(m) \ |
||||
{ \
|
||||
while (NdisInterlockedIncrement (&((m)->count)) != 1) \
|
||||
{ \
|
||||
NdisInterlockedDecrement(&((m)->count)); \
|
||||
NdisMSleep(MUTEX_SLEEP_TIME); \
|
||||
} \
|
||||
} |
||||
|
||||
#define RELEASE_MUTEX(m) \ |
||||
{ \
|
||||
NdisInterlockedDecrement(&((m)->count)); \
|
||||
} |
||||
|
||||
#define ACQUIRE_MUTEX_NONBLOCKING(m, result) \ |
||||
{ \
|
||||
if (NdisInterlockedIncrement (&((m)->count)) != 1) \
|
||||
{ \
|
||||
NdisInterlockedDecrement(&((m)->count)); \
|
||||
result = FALSE; \
|
||||
} \
|
||||
else \
|
||||
{ \
|
||||
result = TRUE; \
|
||||
} \
|
||||
} |
||||
|
||||
#define ACQUIRE_MUTEX_ADAPTIVE(m, result) \ |
||||
{ \
|
||||
result = TRUE; \
|
||||
while (NdisInterlockedIncrement (&((m)->count)) != 1) \
|
||||
{ \
|
||||
NdisInterlockedDecrement(&((m)->count)); \
|
||||
if (KeGetCurrentIrql () < DISPATCH_LEVEL) \
|
||||
NdisMSleep(MUTEX_SLEEP_TIME); \
|
||||
else \
|
||||
{ \
|
||||
result = FALSE; \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
} |
||||
@ -0,0 +1,154 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include "macinfo.h" |
||||
|
||||
int |
||||
HexStringToDecimalInt (const int p_Character) |
||||
{ |
||||
int l_Value = 0; |
||||
|
||||
if (p_Character >= 'A' && p_Character <= 'F') |
||||
l_Value = (p_Character - 'A') + 10; |
||||
else if (p_Character >= 'a' && p_Character <= 'f') |
||||
l_Value = (p_Character - 'a') + 10; |
||||
else if (p_Character >= '0' && p_Character <= '9') |
||||
l_Value = p_Character - '0'; |
||||
|
||||
return l_Value; |
||||
} |
||||
|
||||
BOOLEAN |
||||
ParseMAC (MACADDR dest, const char *src) |
||||
{ |
||||
int c; |
||||
int mac_index = 0; |
||||
BOOLEAN high_digit = FALSE; |
||||
int delim_action = 1; |
||||
|
||||
MYASSERT (src); |
||||
MYASSERT (dest); |
||||
|
||||
CLEAR_MAC (dest); |
||||
|
||||
while (c = *src++) |
||||
{ |
||||
if (IsMacDelimiter (c)) |
||||
{ |
||||
mac_index += delim_action; |
||||
high_digit = FALSE; |
||||
delim_action = 1; |
||||
} |
||||
else if (IsHexDigit (c)) |
||||
{ |
||||
const int digit = HexStringToDecimalInt (c); |
||||
if (mac_index < sizeof (MACADDR)) |
||||
{ |
||||
if (!high_digit) |
||||
{ |
||||
dest[mac_index] = (char)(digit); |
||||
high_digit = TRUE; |
||||
delim_action = 1; |
||||
} |
||||
else |
||||
{ |
||||
dest[mac_index] = (char)(dest[mac_index] * 16 + digit); |
||||
++mac_index; |
||||
high_digit = FALSE; |
||||
delim_action = 0; |
||||
} |
||||
} |
||||
else |
||||
return FALSE; |
||||
} |
||||
else |
||||
return FALSE; |
||||
} |
||||
|
||||
return (mac_index + delim_action) >= sizeof (MACADDR); |
||||
} |
||||
|
||||
/*
|
||||
* Generate a MAC using the GUID in the adapter name. |
||||
* |
||||
* The mac is constructed as 00:FF:xx:xx:xx:xx where |
||||
* the Xs are taken from the first 32 bits of the GUID in the |
||||
* adapter name. This is similar to the Linux 2.4 tap MAC |
||||
* generator, except linux uses 32 random bits for the Xs. |
||||
* |
||||
* In general, this solution is reasonable for most |
||||
* applications except for very large bridged TAP networks, |
||||
* where the probability of address collisions becomes more |
||||
* than infintesimal. |
||||
* |
||||
* Using the well-known "birthday paradox", on a 1000 node |
||||
* network the probability of collision would be |
||||
* 0.000116292153. On a 10,000 node network, the probability |
||||
* of collision would be 0.01157288998621678766. |
||||
*/ |
||||
|
||||
VOID GenerateRandomMac (MACADDR mac, const unsigned char *adapter_name) |
||||
{ |
||||
unsigned const char *cp = adapter_name; |
||||
unsigned char c; |
||||
unsigned int i = 2; |
||||
unsigned int byte = 0; |
||||
int brace = 0; |
||||
int state = 0; |
||||
|
||||
CLEAR_MAC (mac); |
||||
|
||||
mac[0] = 0x00; |
||||
mac[1] = 0xFF; |
||||
|
||||
while (c = *cp++) |
||||
{ |
||||
if (i >= sizeof (MACADDR)) |
||||
break; |
||||
if (c == '{') |
||||
brace = 1; |
||||
if (IsHexDigit (c) && brace) |
||||
{ |
||||
const unsigned int digit = HexStringToDecimalInt (c); |
||||
if (state) |
||||
{ |
||||
byte <<= 4; |
||||
byte |= digit; |
||||
mac[i++] = (unsigned char) byte; |
||||
state = 0; |
||||
} |
||||
else |
||||
{ |
||||
byte = digit; |
||||
state = 1; |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
VOID GenerateRelatedMAC (MACADDR dest, const MACADDR src, const int delta) |
||||
{ |
||||
COPY_MAC (dest, src); |
||||
dest[2] += (UCHAR) delta; |
||||
} |
||||
@ -0,0 +1,38 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef MacInfoDefined |
||||
#define MacInfoDefined |
||||
|
||||
//===================================================================================
|
||||
// Macros
|
||||
//===================================================================================
|
||||
#define IsMacDelimiter(a) (a == ':' || a == '-' || a == '.') |
||||
#define IsHexDigit(c) ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f')) |
||||
|
||||
#define COPY_MAC(dest, src) NdisMoveMemory ((dest), (src), sizeof (MACADDR)) |
||||
#define CLEAR_MAC(dest) NdisZeroMemory ((dest), sizeof (MACADDR)) |
||||
#define MAC_EQUAL(a,b) (memcmp ((a), (b), sizeof (MACADDR)) == 0) |
||||
|
||||
#endif |
||||
@ -0,0 +1,186 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//------------------
|
||||
// Memory Management
|
||||
//------------------
|
||||
|
||||
PVOID |
||||
MemAlloc (ULONG p_Size, BOOLEAN zero) |
||||
{ |
||||
PVOID l_Return = NULL; |
||||
|
||||
if (p_Size) |
||||
{ |
||||
__try |
||||
{ |
||||
if (NdisAllocateMemoryWithTag (&l_Return, p_Size, 'APAT') |
||||
== NDIS_STATUS_SUCCESS) |
||||
{ |
||||
if (zero) |
||||
NdisZeroMemory (l_Return, p_Size); |
||||
} |
||||
else |
||||
l_Return = NULL; |
||||
} |
||||
__except (EXCEPTION_EXECUTE_HANDLER) |
||||
{ |
||||
l_Return = NULL; |
||||
} |
||||
} |
||||
|
||||
return l_Return; |
||||
} |
||||
|
||||
VOID |
||||
MemFree (PVOID p_Addr, ULONG p_Size) |
||||
{ |
||||
if (p_Addr && p_Size) |
||||
{ |
||||
__try |
||||
{ |
||||
#if DBG |
||||
NdisZeroMemory (p_Addr, p_Size); |
||||
#endif |
||||
NdisFreeMemory (p_Addr, p_Size, 0); |
||||
} |
||||
__except (EXCEPTION_EXECUTE_HANDLER) |
||||
{ |
||||
} |
||||
} |
||||
} |
||||
|
||||
/*
|
||||
* Circular queue management routines. |
||||
*/ |
||||
|
||||
#define QUEUE_BYTE_ALLOCATION(size) \ |
||||
(sizeof (Queue) + (size * sizeof (PVOID))) |
||||
|
||||
#define QUEUE_ADD_INDEX(var, inc) \ |
||||
{ \
|
||||
var += inc; \
|
||||
if (var >= q->capacity) \
|
||||
var -= q->capacity; \
|
||||
MYASSERT (var < q->capacity); \
|
||||
} |
||||
|
||||
#define QUEUE_SANITY_CHECK() \ |
||||
MYASSERT (q != NULL && q->base < q->capacity && q->size <= q->capacity) |
||||
|
||||
#define QueueCount(q) (q->size) |
||||
|
||||
#define UPDATE_MAX_SIZE() \ |
||||
{ \
|
||||
if (q->size > q->max_size) \
|
||||
q->max_size = q->size; \
|
||||
} |
||||
|
||||
Queue * |
||||
QueueInit (ULONG capacity) |
||||
{ |
||||
Queue *q; |
||||
|
||||
MYASSERT (capacity > 0); |
||||
q = (Queue *) MemAlloc (QUEUE_BYTE_ALLOCATION (capacity), TRUE); |
||||
if (!q) |
||||
return NULL; |
||||
|
||||
q->base = q->size = 0; |
||||
q->capacity = capacity; |
||||
q->max_size = 0; |
||||
return q; |
||||
} |
||||
|
||||
VOID |
||||
QueueFree (Queue *q) |
||||
{ |
||||
if (q) |
||||
{ |
||||
QUEUE_SANITY_CHECK (); |
||||
MemFree (q, QUEUE_BYTE_ALLOCATION (q->capacity)); |
||||
} |
||||
} |
||||
|
||||
PVOID |
||||
QueuePush (Queue *q, PVOID item) |
||||
{ |
||||
ULONG dest; |
||||
QUEUE_SANITY_CHECK (); |
||||
if (q->size == q->capacity) |
||||
return NULL; |
||||
dest = q->base; |
||||
QUEUE_ADD_INDEX (dest, q->size); |
||||
q->data[dest] = item; |
||||
++q->size; |
||||
UPDATE_MAX_SIZE(); |
||||
return item; |
||||
} |
||||
|
||||
PVOID |
||||
QueuePop (Queue *q) |
||||
{ |
||||
ULONG oldbase; |
||||
QUEUE_SANITY_CHECK (); |
||||
if (!q->size) |
||||
return NULL; |
||||
oldbase = q->base; |
||||
QUEUE_ADD_INDEX (q->base, 1); |
||||
--q->size; |
||||
UPDATE_MAX_SIZE(); |
||||
return q->data[oldbase]; |
||||
} |
||||
|
||||
PVOID |
||||
QueueExtract (Queue *q, PVOID item) |
||||
{ |
||||
ULONG src, dest, count, n; |
||||
QUEUE_SANITY_CHECK (); |
||||
n = 0; |
||||
src = dest = q->base; |
||||
count = q->size; |
||||
while (count--) |
||||
{ |
||||
if (item == q->data[src]) |
||||
{ |
||||
++n; |
||||
--q->size; |
||||
} |
||||
else |
||||
{ |
||||
q->data[dest] = q->data[src]; |
||||
QUEUE_ADD_INDEX (dest, 1);
|
||||
} |
||||
QUEUE_ADD_INDEX (src, 1); |
||||
} |
||||
if (n) |
||||
return item; |
||||
else |
||||
return NULL; |
||||
} |
||||
|
||||
#undef QUEUE_BYTE_ALLOCATION |
||||
#undef QUEUE_ADD_INDEX |
||||
#undef QUEUE_SANITY_CHECK |
||||
#undef UPDATE_MAX_SIZE |
||||
@ -0,0 +1,187 @@
|
||||
; **************************************************************************** |
||||
; * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. * |
||||
; * This program is free software; you can redistribute it and/or modify * |
||||
; * it under the terms of the GNU General Public License version 2 * |
||||
; * as published by the Free Software Foundation. * |
||||
; **************************************************************************** |
||||
|
||||
; SYNTAX CHECKER |
||||
; cd \WINDDK\3790\tools\chkinf |
||||
; chkinf c:\src\openvpn\tap-win32\i386\oemwin2k.inf |
||||
; OUTPUT -> file:///c:/WINDDK/3790/tools/chkinf/htm/c%23+src+openvpn+tap-win32+i386+__OemWin2k.htm |
||||
|
||||
; INSTALL/REMOVE DRIVER |
||||
; tapinstall install OemWin2k.inf TAP0901 |
||||
; tapinstall update OemWin2k.inf TAP0901 |
||||
; tapinstall remove TAP0901 |
||||
|
||||
;********************************************************* |
||||
; Note to Developers: |
||||
; |
||||
; If you are bundling the TAP-Windows driver with your app, |
||||
; you should try to rename it in such a way that it will |
||||
; not collide with other instances of TAP-Windows defined |
||||
; by other apps. Multiple versions of the TAP-Windows |
||||
; driver, each installed by different apps, can coexist |
||||
; on the same machine if you follow these guidelines. |
||||
; NOTE: these instructions assume you are editing the |
||||
; generated OemWin2k.inf file, not the source |
||||
; OemWin2k.inf.in file which is preprocessed by winconfig |
||||
; and uses macro definitions from settings.in. |
||||
; |
||||
; (1) Rename all tapXXXX instances in this file to |
||||
; something different (use at least 5 characters |
||||
; for this name!) |
||||
; (2) Change the "!define TAP" definition in openvpn.nsi |
||||
; to match what you changed tapXXXX to. |
||||
; (3) Change TARGETNAME in SOURCES to match what you |
||||
; changed tapXXXX to. |
||||
; (4) Change TAP_COMPONENT_ID in common.h to match what |
||||
; you changed tapXXXX to. |
||||
; (5) Change SZDEPENDENCIES in service.h to match what |
||||
; you changed tapXXXX to. |
||||
; (6) Change DeviceDescription and Provider strings. |
||||
; (7) Change PRODUCT_TAP_WIN_DEVICE_DESCRIPTION in constants.h to what you |
||||
; set DeviceDescription to. |
||||
; |
||||
;********************************************************* |
||||
|
||||
[Version] |
||||
Signature = "$Windows NT$" |
||||
CatalogFile = @PRODUCT_TAP_WIN_COMPONENT_ID@.cat |
||||
ClassGUID = {4d36e972-e325-11ce-bfc1-08002be10318} |
||||
Provider = %Provider% |
||||
Class = Net |
||||
|
||||
; This version number should match the version |
||||
; number given in SOURCES. |
||||
DriverVer=@PRODUCT_TAP_WIN_RELDATE@,@PRODUCT_TAP_WIN_MAJOR@.00.00.@PRODUCT_TAP_WIN_MINOR@ |
||||
|
||||
[Strings] |
||||
DeviceDescription = "@PRODUCT_TAP_WIN_DEVICE_DESCRIPTION@" |
||||
Provider = "@PRODUCT_TAP_WIN_PROVIDER@" |
||||
|
||||
;---------------------------------------------------------------- |
||||
; Manufacturer + Product Section (Done) |
||||
;---------------------------------------------------------------- |
||||
[Manufacturer] |
||||
%Provider% = @PRODUCT_TAP_WIN_COMPONENT_ID@@INF_PROVIDER_SUFFIX@ |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@@INF_SECTION_SUFFIX@] |
||||
%DeviceDescription% = @PRODUCT_TAP_WIN_COMPONENT_ID@.ndi, @PRODUCT_TAP_WIN_COMPONENT_ID@ |
||||
|
||||
;--------------------------------------------------------------- |
||||
; Driver Section (Done) |
||||
;--------------------------------------------------------------- |
||||
|
||||
;----------------- Characteristics ------------ |
||||
; NCF_PHYSICAL = 0x04 |
||||
; NCF_VIRTUAL = 0x01 |
||||
; NCF_SOFTWARE_ENUMERATED = 0x02 |
||||
; NCF_HIDDEN = 0x08 |
||||
; NCF_NO_SERVICE = 0x10 |
||||
; NCF_HAS_UI = 0x80 |
||||
;----------------- Characteristics ------------ |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.ndi] |
||||
CopyFiles = @PRODUCT_TAP_WIN_COMPONENT_ID@.driver, @PRODUCT_TAP_WIN_COMPONENT_ID@.files |
||||
AddReg = @PRODUCT_TAP_WIN_COMPONENT_ID@.reg |
||||
AddReg = @PRODUCT_TAP_WIN_COMPONENT_ID@.params.reg |
||||
Characteristics = @PRODUCT_TAP_WIN_CHARACTERISTICS@ |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.ndi.Services] |
||||
AddService = @PRODUCT_TAP_WIN_COMPONENT_ID@, 2, @PRODUCT_TAP_WIN_COMPONENT_ID@.service |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.reg] |
||||
HKR, Ndi, Service, 0, "@PRODUCT_TAP_WIN_COMPONENT_ID@" |
||||
HKR, Ndi\Interfaces, UpperRange, 0, "ndis5" |
||||
HKR, Ndi\Interfaces, LowerRange, 0, "ethernet" |
||||
HKR, , Manufacturer, 0, "%Provider%" |
||||
HKR, , ProductName, 0, "%DeviceDescription%" |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.params.reg] |
||||
HKR, Ndi\params\MTU, ParamDesc, 0, "MTU" |
||||
HKR, Ndi\params\MTU, Type, 0, "int" |
||||
HKR, Ndi\params\MTU, Default, 0, "1500" |
||||
HKR, Ndi\params\MTU, Optional, 0, "0" |
||||
HKR, Ndi\params\MTU, Min, 0, "100" |
||||
HKR, Ndi\params\MTU, Max, 0, "1500" |
||||
HKR, Ndi\params\MTU, Step, 0, "1" |
||||
HKR, Ndi\params\MediaStatus, ParamDesc, 0, "Media Status" |
||||
HKR, Ndi\params\MediaStatus, Type, 0, "enum" |
||||
HKR, Ndi\params\MediaStatus, Default, 0, "0" |
||||
HKR, Ndi\params\MediaStatus, Optional, 0, "0" |
||||
HKR, Ndi\params\MediaStatus\enum, "0", 0, "Application Controlled" |
||||
HKR, Ndi\params\MediaStatus\enum, "1", 0, "Always Connected" |
||||
HKR, Ndi\params\MAC, ParamDesc, 0, "MAC Address" |
||||
HKR, Ndi\params\MAC, Type, 0, "edit" |
||||
HKR, Ndi\params\MAC, Optional, 0, "1" |
||||
HKR, Ndi\params\AllowNonAdmin, ParamDesc, 0, "Non-Admin Access" |
||||
HKR, Ndi\params\AllowNonAdmin, Type, 0, "enum" |
||||
HKR, Ndi\params\AllowNonAdmin, Default, 0, "1" |
||||
HKR, Ndi\params\AllowNonAdmin, Optional, 0, "0" |
||||
HKR, Ndi\params\AllowNonAdmin\enum, "0", 0, "Not Allowed" |
||||
HKR, Ndi\params\AllowNonAdmin\enum, "1", 0, "Allowed" |
||||
|
||||
;---------------------------------------------------------------- |
||||
; Service Section |
||||
;---------------------------------------------------------------- |
||||
|
||||
;---------- Service Type ------------- |
||||
; SERVICE_KERNEL_DRIVER = 0x01 |
||||
; SERVICE_WIN32_OWN_PROCESS = 0x10 |
||||
;---------- Service Type ------------- |
||||
|
||||
;---------- Start Mode --------------- |
||||
; SERVICE_BOOT_START = 0x0 |
||||
; SERVICE_SYSTEM_START = 0x1 |
||||
; SERVICE_AUTO_START = 0x2 |
||||
; SERVICE_DEMAND_START = 0x3 |
||||
; SERVICE_DISABLED = 0x4 |
||||
;---------- Start Mode --------------- |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.service] |
||||
DisplayName = %DeviceDescription% |
||||
ServiceType = 1 |
||||
StartType = 3 |
||||
ErrorControl = 1 |
||||
LoadOrderGroup = NDIS |
||||
ServiceBinary = %12%\@PRODUCT_TAP_WIN_COMPONENT_ID@.sys |
||||
|
||||
;----------------------------------------------------------------- |
||||
; File Installation |
||||
;----------------------------------------------------------------- |
||||
|
||||
;----------------- Copy Flags ------------ |
||||
; COPYFLG_NOSKIP = 0x02 |
||||
; COPYFLG_NOVERSIONCHECK = 0x04 |
||||
;----------------- Copy Flags ------------ |
||||
|
||||
; SourceDisksNames |
||||
; diskid = description[, [tagfile] [, <unused>, subdir]] |
||||
; 1 = "Intel Driver Disk 1",e100bex.sys,, |
||||
|
||||
[SourceDisksNames] |
||||
1 = %DeviceDescription%, @PRODUCT_TAP_WIN_COMPONENT_ID@.sys |
||||
|
||||
; SourceDisksFiles |
||||
; filename_on_source = diskID[, [subdir][, size]] |
||||
; e100bex.sys = 1,, ; on distribution disk 1 |
||||
|
||||
[SourceDisksFiles] |
||||
@PRODUCT_TAP_WIN_COMPONENT_ID@.sys = 1 |
||||
|
||||
[DestinationDirs] |
||||
@PRODUCT_TAP_WIN_COMPONENT_ID@.files = 11 |
||||
@PRODUCT_TAP_WIN_COMPONENT_ID@.driver = 12 |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.files] |
||||
; TapPanel.cpl,,,6 ; COPYFLG_NOSKIP | COPYFLG_NOVERSIONCHECK |
||||
; cipsrvr.exe,,,6 ; COPYFLG_NOSKIP | COPYFLG_NOVERSIONCHECK |
||||
|
||||
[@PRODUCT_TAP_WIN_COMPONENT_ID@.driver] |
||||
@PRODUCT_TAP_WIN_COMPONENT_ID@.sys,,,6 ; COPYFLG_NOSKIP | COPYFLG_NOVERSIONCHECK |
||||
|
||||
;--------------------------------------------------------------- |
||||
; End |
||||
;--------------------------------------------------------------- |
||||
@ -0,0 +1,224 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
//============================================================
|
||||
// MAC address, Ethernet header, and ARP
|
||||
//============================================================
|
||||
|
||||
#pragma pack(1) |
||||
|
||||
#define IP_HEADER_SIZE 20 |
||||
#define IPV6_HEADER_SIZE 40 |
||||
|
||||
typedef unsigned char MACADDR [6]; |
||||
typedef unsigned long IPADDR; |
||||
typedef unsigned char IPV6ADDR [16]; |
||||
|
||||
//-----------------
|
||||
// Ethernet address
|
||||
//-----------------
|
||||
|
||||
typedef struct { |
||||
MACADDR addr; |
||||
} ETH_ADDR; |
||||
|
||||
typedef struct { |
||||
ETH_ADDR list[NIC_MAX_MCAST_LIST]; |
||||
} MC_LIST; |
||||
|
||||
//----------------
|
||||
// Ethernet header
|
||||
//----------------
|
||||
|
||||
typedef struct |
||||
{ |
||||
MACADDR dest; /* destination eth addr */ |
||||
MACADDR src; /* source ether addr */ |
||||
|
||||
# define ETH_P_IP 0x0800 /* IPv4 protocol */ |
||||
# define ETH_P_IPV6 0x86DD /* IPv6 protocol */ |
||||
# define ETH_P_ARP 0x0806 /* ARP protocol */ |
||||
USHORT proto; /* packet type ID field */ |
||||
} ETH_HEADER, *PETH_HEADER; |
||||
|
||||
//----------------
|
||||
// ARP packet
|
||||
//----------------
|
||||
|
||||
typedef struct |
||||
{ |
||||
MACADDR m_MAC_Destination; // Reverse these two
|
||||
MACADDR m_MAC_Source; // to answer ARP requests
|
||||
USHORT m_Proto; // 0x0806
|
||||
|
||||
# define MAC_ADDR_TYPE 0x0001 |
||||
USHORT m_MAC_AddressType; // 0x0001
|
||||
|
||||
USHORT m_PROTO_AddressType; // 0x0800
|
||||
UCHAR m_MAC_AddressSize; // 0x06
|
||||
UCHAR m_PROTO_AddressSize; // 0x04
|
||||
|
||||
# define ARP_REQUEST 0x0001 |
||||
# define ARP_REPLY 0x0002 |
||||
USHORT m_ARP_Operation; // 0x0001 for ARP request, 0x0002 for ARP reply
|
||||
|
||||
MACADDR m_ARP_MAC_Source; |
||||
IPADDR m_ARP_IP_Source; |
||||
MACADDR m_ARP_MAC_Destination; |
||||
IPADDR m_ARP_IP_Destination; |
||||
} |
||||
ARP_PACKET, *PARP_PACKET; |
||||
|
||||
//----------
|
||||
// IP Header
|
||||
//----------
|
||||
|
||||
typedef struct { |
||||
# define IPH_GET_VER(v) (((v) >> 4) & 0x0F) |
||||
# define IPH_GET_LEN(v) (((v) & 0x0F) << 2) |
||||
UCHAR version_len; |
||||
|
||||
UCHAR tos; |
||||
USHORT tot_len; |
||||
USHORT id; |
||||
|
||||
# define IP_OFFMASK 0x1fff |
||||
USHORT frag_off; |
||||
|
||||
UCHAR ttl; |
||||
|
||||
# define IPPROTO_UDP 17 /* UDP protocol */ |
||||
# define IPPROTO_TCP 6 /* TCP protocol */ |
||||
# define IPPROTO_ICMP 1 /* ICMP protocol */ |
||||
# define IPPROTO_IGMP 2 /* IGMP protocol */ |
||||
UCHAR protocol; |
||||
|
||||
USHORT check; |
||||
ULONG saddr; |
||||
ULONG daddr; |
||||
/* The options start here. */ |
||||
} IPHDR; |
||||
|
||||
//-----------
|
||||
// UDP header
|
||||
//-----------
|
||||
|
||||
typedef struct { |
||||
USHORT source; |
||||
USHORT dest; |
||||
USHORT len; |
||||
USHORT check; |
||||
} UDPHDR; |
||||
|
||||
//--------------------------
|
||||
// TCP header, per RFC 793.
|
||||
//--------------------------
|
||||
|
||||
typedef struct { |
||||
USHORT source; /* source port */ |
||||
USHORT dest; /* destination port */ |
||||
ULONG seq; /* sequence number */ |
||||
ULONG ack_seq; /* acknowledgement number */ |
||||
|
||||
# define TCPH_GET_DOFF(d) (((d) & 0xF0) >> 2) |
||||
UCHAR doff_res; |
||||
|
||||
# define TCPH_FIN_MASK (1<<0) |
||||
# define TCPH_SYN_MASK (1<<1) |
||||
# define TCPH_RST_MASK (1<<2) |
||||
# define TCPH_PSH_MASK (1<<3) |
||||
# define TCPH_ACK_MASK (1<<4) |
||||
# define TCPH_URG_MASK (1<<5) |
||||
# define TCPH_ECE_MASK (1<<6) |
||||
# define TCPH_CWR_MASK (1<<7) |
||||
UCHAR flags; |
||||
|
||||
USHORT window; |
||||
USHORT check; |
||||
USHORT urg_ptr; |
||||
} TCPHDR; |
||||
|
||||
#define TCPOPT_EOL 0 |
||||
#define TCPOPT_NOP 1 |
||||
#define TCPOPT_MAXSEG 2 |
||||
#define TCPOLEN_MAXSEG 4 |
||||
|
||||
//------------
|
||||
// IPv6 Header
|
||||
//------------
|
||||
|
||||
typedef struct { |
||||
UCHAR version_prio; |
||||
UCHAR flow_lbl[3]; |
||||
USHORT payload_len; |
||||
# define IPPROTO_ICMPV6 0x3a /* ICMP protocol v6 */ |
||||
UCHAR nexthdr; |
||||
UCHAR hop_limit; |
||||
IPV6ADDR saddr; |
||||
IPV6ADDR daddr; |
||||
} IPV6HDR; |
||||
|
||||
//--------------------------------------------
|
||||
// IPCMPv6 NS/NA Packets (RFC4443 and RFC4861)
|
||||
//--------------------------------------------
|
||||
|
||||
// Neighbor Solictiation - RFC 4861, 4.3
|
||||
// (this is just the ICMPv6 part of the packet)
|
||||
typedef struct { |
||||
UCHAR type; |
||||
# define ICMPV6_TYPE_NS 135 // neighbour solicitation
|
||||
UCHAR code; |
||||
# define ICMPV6_CODE_0 0 // no specific sub-code for NS/NA
|
||||
USHORT checksum; |
||||
ULONG reserved; |
||||
IPV6ADDR target_addr; |
||||
} ICMPV6_NS; |
||||
|
||||
// Neighbor Advertisement - RFC 4861, 4.4 + 4.6/4.6.1
|
||||
// (this is just the ICMPv6 payload)
|
||||
typedef struct { |
||||
UCHAR type; |
||||
# define ICMPV6_TYPE_NA 136 // neighbour advertisement
|
||||
UCHAR code; |
||||
# define ICMPV6_CODE_0 0 // no specific sub-code for NS/NA
|
||||
USHORT checksum; |
||||
UCHAR rso_bits; // Router(0), Solicited(2), Ovrrd(4)
|
||||
UCHAR reserved[3]; |
||||
IPV6ADDR target_addr; |
||||
// always include "Target Link-layer Address" option (RFC 4861 4.6.1)
|
||||
UCHAR opt_type; |
||||
#define ICMPV6_OPTION_TLLA 2 |
||||
UCHAR opt_length; |
||||
#define ICMPV6_LENGTH_TLLA 1 // multiplied by 8 -> 1 = 8 bytes
|
||||
MACADDR target_macaddr; |
||||
} ICMPV6_NA; |
||||
|
||||
// this is the complete packet with Ethernet and IPv6 headers
|
||||
typedef struct { |
||||
ETH_HEADER eth; |
||||
IPV6HDR ipv6; |
||||
ICMPV6_NA icmpv6; |
||||
} ICMPV6_NA_PKT; |
||||
|
||||
#pragma pack() |
||||
@ -0,0 +1,260 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef TAP_PROTOTYPES_DEFINED |
||||
#define TAP_PROTOTYPES_DEFINED |
||||
|
||||
NTSTATUS DriverEntry |
||||
( |
||||
IN PDRIVER_OBJECT p_DriverObject, |
||||
IN PUNICODE_STRING p_RegistryPath |
||||
); |
||||
|
||||
VOID TapDriverUnload |
||||
( |
||||
IN PDRIVER_OBJECT p_DriverObject |
||||
); |
||||
|
||||
NDIS_STATUS AdapterCreate |
||||
( |
||||
OUT PNDIS_STATUS p_ErrorStatus, |
||||
OUT PUINT p_MediaIndex, |
||||
IN PNDIS_MEDIUM p_Media, |
||||
IN UINT p_MediaCount, |
||||
IN NDIS_HANDLE p_AdapterHandle, |
||||
IN NDIS_HANDLE p_ConfigurationHandle |
||||
); |
||||
|
||||
VOID AdapterHalt |
||||
( |
||||
IN NDIS_HANDLE p_AdapterContext |
||||
); |
||||
|
||||
VOID AdapterFreeResources |
||||
( |
||||
TapAdapterPointer p_Adapter |
||||
); |
||||
|
||||
NDIS_STATUS AdapterReset |
||||
( |
||||
OUT PBOOLEAN p_AddressingReset, |
||||
IN NDIS_HANDLE p_AdapterContext |
||||
); |
||||
|
||||
NDIS_STATUS AdapterQuery |
||||
( |
||||
IN NDIS_HANDLE p_AdapterContext, |
||||
IN NDIS_OID p_OID, |
||||
IN PVOID p_Buffer, |
||||
IN ULONG p_BufferLength, |
||||
OUT PULONG p_BytesWritten, |
||||
OUT PULONG p_BytesNeeded |
||||
); |
||||
|
||||
NDIS_STATUS AdapterModify |
||||
( |
||||
IN NDIS_HANDLE p_AdapterContext, |
||||
IN NDIS_OID p_OID, |
||||
IN PVOID p_Buffer, |
||||
IN ULONG p_BufferLength, |
||||
OUT PULONG p_BytesRead, |
||||
OUT PULONG p_BytesNeeded |
||||
); |
||||
|
||||
NDIS_STATUS AdapterTransmit |
||||
( |
||||
IN NDIS_HANDLE p_AdapterContext, |
||||
IN PNDIS_PACKET p_Packet, |
||||
IN UINT p_Flags |
||||
); |
||||
|
||||
NDIS_STATUS AdapterReceive |
||||
( |
||||
OUT PNDIS_PACKET p_Packet, |
||||
OUT PUINT p_Transferred, |
||||
IN NDIS_HANDLE p_AdapterContext, |
||||
IN NDIS_HANDLE p_ReceiveContext, |
||||
IN UINT p_Offset, |
||||
IN UINT p_ToTransfer |
||||
); |
||||
|
||||
NTSTATUS TapDeviceHook |
||||
( |
||||
IN PDEVICE_OBJECT p_DeviceObject, |
||||
IN PIRP p_IRP |
||||
); |
||||
|
||||
NDIS_STATUS CreateTapDevice |
||||
( |
||||
TapExtensionPointer p_Extension, |
||||
const char *p_Name |
||||
); |
||||
|
||||
VOID DestroyTapDevice |
||||
( |
||||
TapExtensionPointer p_Extension |
||||
); |
||||
|
||||
VOID TapDeviceFreeResources |
||||
( |
||||
TapExtensionPointer p_Extension |
||||
); |
||||
|
||||
NTSTATUS CompleteIRP |
||||
( |
||||
IN PIRP p_IRP, |
||||
IN TapPacketPointer p_PacketBuffer, |
||||
IN CCHAR PriorityBoost |
||||
); |
||||
|
||||
VOID CancelIRPCallback |
||||
( |
||||
IN PDEVICE_OBJECT p_DeviceObject, |
||||
IN PIRP p_IRP |
||||
); |
||||
|
||||
VOID CancelIRP |
||||
( |
||||
TapExtensionPointer p_Extension, |
||||
IN PIRP p_IRP, |
||||
BOOLEAN callback |
||||
); |
||||
|
||||
VOID FlushQueues |
||||
( |
||||
TapExtensionPointer p_Extension |
||||
); |
||||
|
||||
VOID ResetTapAdapterState |
||||
( |
||||
TapAdapterPointer p_Adapter |
||||
); |
||||
|
||||
BOOLEAN ProcessARP |
||||
( |
||||
TapAdapterPointer p_Adapter, |
||||
const PARP_PACKET src, |
||||
const IPADDR adapter_ip, |
||||
const IPADDR ip_network, |
||||
const IPADDR ip_netmask, |
||||
const MACADDR mac |
||||
); |
||||
|
||||
VOID SetMediaStatus |
||||
( |
||||
TapAdapterPointer p_Adapter, |
||||
BOOLEAN state |
||||
); |
||||
|
||||
VOID InjectPacketDeferred |
||||
( |
||||
TapAdapterPointer p_Adapter, |
||||
UCHAR *packet, |
||||
const unsigned int len |
||||
); |
||||
|
||||
VOID InjectPacketNow |
||||
( |
||||
TapAdapterPointer p_Adapter, |
||||
UCHAR *packet, |
||||
const unsigned int len |
||||
); |
||||
|
||||
// for KDEFERRED_ROUTINE and Static Driver Verifier
|
||||
//#include <wdm.h>
|
||||
//KDEFERRED_ROUTINE InjectPacketDpc;
|
||||
|
||||
VOID InjectPacketDpc |
||||
( |
||||
KDPC *Dpc, |
||||
PVOID DeferredContext, |
||||
PVOID SystemArgument1, |
||||
PVOID SystemArgument2 |
||||
); |
||||
|
||||
VOID CheckIfDhcpAndTunMode |
||||
( |
||||
TapAdapterPointer p_Adapter |
||||
); |
||||
|
||||
VOID HookDispatchFunctions(); |
||||
|
||||
#if ENABLE_NONADMIN |
||||
|
||||
#if defined(DDKVER_MAJOR) && DDKVER_MAJOR < 5600 |
||||
/*
|
||||
* Better solution for use on Vista DDK, but possibly not compatible with |
||||
* earlier DDKs: |
||||
* |
||||
* Eliminate the definition of SECURITY_DESCRIPTOR (and even ZwSetSecurityObject), |
||||
* and at the top of tapdrv.c change: |
||||
* |
||||
* #include <ndis.h> |
||||
* #include <ntstrsafe.h> |
||||
* #include <ntddk.h> |
||||
* |
||||
* To |
||||
* |
||||
* #include <ntifs.h> |
||||
* #include <ndis.h> |
||||
* #include <ntstrsafe.h> |
||||
*/ |
||||
typedef struct _SECURITY_DESCRIPTOR { |
||||
unsigned char opaque[64]; |
||||
} SECURITY_DESCRIPTOR; |
||||
|
||||
NTSYSAPI |
||||
NTSTATUS |
||||
NTAPI |
||||
ZwSetSecurityObject ( |
||||
IN HANDLE Handle, |
||||
IN SECURITY_INFORMATION SecurityInformation, |
||||
IN PSECURITY_DESCRIPTOR SecurityDescriptor); |
||||
|
||||
#endif |
||||
|
||||
VOID AllowNonAdmin (TapExtensionPointer p_Extension); |
||||
|
||||
#endif |
||||
|
||||
struct WIN2K_NDIS_MINIPORT_BLOCK |
||||
{ |
||||
unsigned char opaque[16]; |
||||
UNICODE_STRING MiniportName; // how mini-port refers to us
|
||||
}; |
||||
|
||||
#if PACKET_TRUNCATION_CHECK |
||||
|
||||
VOID IPv4PacketSizeVerify |
||||
( |
||||
const UCHAR *data, |
||||
ULONG length, |
||||
BOOLEAN tun, |
||||
const char *prefix, |
||||
LONG *counter |
||||
); |
||||
|
||||
#endif |
||||
|
||||
#endif |
||||
@ -0,0 +1,74 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
#ifndef __TAP_WIN_H |
||||
#define __TAP_WIN_H |
||||
|
||||
/*
|
||||
* ============= |
||||
* TAP IOCTLs |
||||
* ============= |
||||
*/ |
||||
|
||||
#define TAP_WIN_CONTROL_CODE(request,method) \ |
||||
CTL_CODE (FILE_DEVICE_UNKNOWN, request, method, FILE_ANY_ACCESS) |
||||
|
||||
/* Present in 8.1 */ |
||||
|
||||
#define TAP_WIN_IOCTL_GET_MAC TAP_WIN_CONTROL_CODE (1, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_GET_VERSION TAP_WIN_CONTROL_CODE (2, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_GET_MTU TAP_WIN_CONTROL_CODE (3, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_GET_INFO TAP_WIN_CONTROL_CODE (4, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_CONFIG_POINT_TO_POINT TAP_WIN_CONTROL_CODE (5, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_SET_MEDIA_STATUS TAP_WIN_CONTROL_CODE (6, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_CONFIG_DHCP_MASQ TAP_WIN_CONTROL_CODE (7, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_GET_LOG_LINE TAP_WIN_CONTROL_CODE (8, METHOD_BUFFERED) |
||||
#define TAP_WIN_IOCTL_CONFIG_DHCP_SET_OPT TAP_WIN_CONTROL_CODE (9, METHOD_BUFFERED) |
||||
|
||||
/* Added in 8.2 */ |
||||
|
||||
/* obsoletes TAP_WIN_IOCTL_CONFIG_POINT_TO_POINT */ |
||||
#define TAP_WIN_IOCTL_CONFIG_TUN TAP_WIN_CONTROL_CODE (10, METHOD_BUFFERED) |
||||
|
||||
/*
|
||||
* ================= |
||||
* Registry keys |
||||
* ================= |
||||
*/ |
||||
|
||||
#define ADAPTER_KEY "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}" |
||||
|
||||
#define NETWORK_CONNECTIONS_KEY "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}" |
||||
|
||||
/*
|
||||
* ====================== |
||||
* Filesystem prefixes |
||||
* ====================== |
||||
*/ |
||||
|
||||
#define USERMODEDEVICEDIR "\\\\.\\Global\\" |
||||
#define SYSDEVICEDIR "\\Device\\" |
||||
#define USERDEVICEDIR "\\DosDevices\\Global\\" |
||||
#define TAP_WIN_SUFFIX ".tap" |
||||
|
||||
#endif |
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,178 @@
|
||||
/*
|
||||
* TAP-Windows -- A kernel driver to provide virtual tap |
||||
* device functionality on Windows. |
||||
* |
||||
* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. |
||||
* |
||||
* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc., |
||||
* and is released under the GPL version 2 (see below). |
||||
* |
||||
* This program is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License version 2 |
||||
* as published by the Free Software Foundation. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program (see the file COPYING included with this |
||||
* distribution); if not, write to the Free Software Foundation, Inc., |
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef TAP_TYPES_DEFINED |
||||
#define TAP_TYPES_DEFINED |
||||
|
||||
typedef struct _Queue |
||||
{ |
||||
ULONG base; |
||||
ULONG size; |
||||
ULONG capacity; |
||||
ULONG max_size; |
||||
PVOID data[]; |
||||
} Queue; |
||||
|
||||
typedef struct _TapAdapter; |
||||
typedef struct _TapPacket; |
||||
|
||||
typedef union _TapAdapterQuery |
||||
{ |
||||
NDIS_HARDWARE_STATUS m_HardwareStatus; |
||||
NDIS_MEDIUM m_Medium; |
||||
NDIS_PHYSICAL_MEDIUM m_PhysicalMedium; |
||||
UCHAR m_MacAddress [6]; |
||||
UCHAR m_Buffer [256]; |
||||
ULONG m_Long; |
||||
USHORT m_Short; |
||||
UCHAR m_Byte; |
||||
} |
||||
TapAdapterQuery, *TapAdapterQueryPointer; |
||||
|
||||
typedef struct _TapExtension |
||||
{ |
||||
// TAP device object and packet queues
|
||||
Queue *m_PacketQueue, *m_IrpQueue; |
||||
PDEVICE_OBJECT m_TapDevice; |
||||
NDIS_HANDLE m_TapDeviceHandle; |
||||
ULONG m_TapOpens; |
||||
|
||||
// Used to lock packet queues
|
||||
NDIS_SPIN_LOCK m_QueueLock; |
||||
BOOLEAN m_AllocatedSpinlocks; |
||||
|
||||
// Used to bracket open/close
|
||||
// state changes.
|
||||
MUTEX m_OpenCloseMutex; |
||||
|
||||
// True if device has been permanently halted
|
||||
BOOLEAN m_Halt; |
||||
|
||||
// TAP device name
|
||||
unsigned char *m_TapName; |
||||
UNICODE_STRING m_UnicodeLinkName; |
||||
BOOLEAN m_CreatedUnicodeLinkName; |
||||
|
||||
// Used for device status ioctl only
|
||||
const char *m_LastErrorFilename; |
||||
int m_LastErrorLineNumber; |
||||
LONG m_NumTapOpens; |
||||
|
||||
// Flags
|
||||
BOOLEAN m_TapIsRunning; |
||||
BOOLEAN m_CalledTapDeviceFreeResources; |
||||
|
||||
// DPC queue for deferred packet injection
|
||||
BOOLEAN m_InjectDpcInitialized; |
||||
KDPC m_InjectDpc; |
||||
NDIS_SPIN_LOCK m_InjectLock; |
||||
Queue *m_InjectQueue; |
||||
} |
||||
TapExtension, *TapExtensionPointer; |
||||
|
||||
typedef struct _TapPacket |
||||
{ |
||||
# define TAP_PACKET_SIZE(data_size) (sizeof (TapPacket) + (data_size)) |
||||
# define TP_TUN 0x80000000 |
||||
# define TP_SIZE_MASK (~TP_TUN) |
||||
ULONG m_SizeFlags; |
||||
UCHAR m_Data []; // m_Data must be the last struct member
|
||||
} |
||||
TapPacket, *TapPacketPointer; |
||||
|
||||
typedef struct _InjectPacket |
||||
{ |
||||
# define INJECT_PACKET_SIZE(data_size) (sizeof (InjectPacket) + (data_size)) |
||||
# define INJECT_PACKET_FREE(ib) NdisFreeMemory ((ib), INJECT_PACKET_SIZE ((ib)->m_Size), 0) |
||||
ULONG m_Size; |
||||
UCHAR m_Data []; // m_Data must be the last struct member
|
||||
} |
||||
InjectPacket, *InjectPacketPointer; |
||||
|
||||
typedef struct _TapAdapter |
||||
{ |
||||
# define NAME(a) ((a)->m_NameAnsi.Buffer) |
||||
ANSI_STRING m_NameAnsi; |
||||
MACADDR m_MAC; |
||||
BOOLEAN m_InterfaceIsRunning; |
||||
NDIS_HANDLE m_MiniportAdapterHandle; |
||||
LONG m_Rx, m_Tx, m_RxErr, m_TxErr; |
||||
#if PACKET_TRUNCATION_CHECK |
||||
LONG m_RxTrunc, m_TxTrunc; |
||||
#endif |
||||
NDIS_MEDIUM m_Medium; |
||||
ULONG m_Lookahead; |
||||
ULONG m_MTU; |
||||
|
||||
// TRUE if adapter should always be
|
||||
// "connected" even when device node
|
||||
// is not open by a userspace process.
|
||||
BOOLEAN m_MediaStateAlwaysConnected; |
||||
|
||||
// TRUE if device is "connected"
|
||||
BOOLEAN m_MediaState; |
||||
|
||||
// Adapter power state
|
||||
char m_DeviceState; |
||||
|
||||
// Info for point-to-point mode
|
||||
BOOLEAN m_tun; |
||||
IPADDR m_localIP; |
||||
IPADDR m_remoteNetwork; |
||||
IPADDR m_remoteNetmask; |
||||
ETH_HEADER m_TapToUser; |
||||
ETH_HEADER m_UserToTap; |
||||
ETH_HEADER m_UserToTap_IPv6; // same as UserToTap but proto=ipv6
|
||||
MACADDR m_MAC_Broadcast; |
||||
|
||||
// Used for DHCP server masquerade
|
||||
BOOLEAN m_dhcp_enabled; |
||||
IPADDR m_dhcp_addr; |
||||
ULONG m_dhcp_netmask; |
||||
IPADDR m_dhcp_server_ip; |
||||
BOOLEAN m_dhcp_server_arp; |
||||
MACADDR m_dhcp_server_mac; |
||||
ULONG m_dhcp_lease_time; |
||||
UCHAR m_dhcp_user_supplied_options_buffer[DHCP_USER_SUPPLIED_OPTIONS_BUFFER_SIZE]; |
||||
ULONG m_dhcp_user_supplied_options_buffer_len; |
||||
BOOLEAN m_dhcp_received_discover; |
||||
ULONG m_dhcp_bad_requests; |
||||
|
||||
// Help to tear down the adapter by keeping
|
||||
// some state information on allocated
|
||||
// resources.
|
||||
BOOLEAN m_CalledAdapterFreeResources; |
||||
BOOLEAN m_RegisteredAdapterShutdownHandler; |
||||
|
||||
// Multicast list info
|
||||
NDIS_SPIN_LOCK m_MCLock; |
||||
BOOLEAN m_MCLockAllocated; |
||||
ULONG m_MCListSize; |
||||
MC_LIST m_MCList; |
||||
|
||||
// Information on the TAP device
|
||||
TapExtension m_Extension; |
||||
} TapAdapter, *TapAdapterPointer; |
||||
|
||||
#endif |
||||
Loading…
Reference in new issue