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/* |
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* pfhook.h |
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* |
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* Packet filter API |
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* |
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* This file is part of the w32api package. |
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* |
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* Contributors: |
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* Created by Casper S. Hornstrup <chorns@users.sourceforge.net> |
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* |
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* THIS SOFTWARE IS NOT COPYRIGHTED |
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* |
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* This source code is offered for use in the public domain. You may |
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* use, modify or distribute it freely. |
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* |
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* This code is distributed in the hope that it will be useful but |
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY |
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* DISCLAIMED. This includes but is not limited to warranties of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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*/ |
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|
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#ifndef __PFHOOK_H |
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#define __PFHOOK_H |
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|
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#if __GNUC__ >=3 |
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#pragma GCC system_header |
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#endif |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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#include "ntddk.h" |
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|
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#define DD_IPFLTRDRVR_DEVICE_NAME L"\\Device\\IPFILTERDRIVER" |
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|
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#define INVALID_PF_IF_INDEX 0xffffffff |
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#define ZERO_PF_IP_ADDR 0 |
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|
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typedef ULONG IPAddr; |
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|
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typedef enum _PF_FORWARD_ACTION { |
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PF_FORWARD = 0, |
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PF_DROP = 1, |
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PF_PASS = 2, |
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PF_ICMP_ON_DROP = 3 |
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} PF_FORWARD_ACTION; |
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|
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typedef PF_FORWARD_ACTION STDCALL |
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(*PacketFilterExtensionPtr)( |
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/*IN*/ unsigned char *PacketHeader, |
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/*IN*/ unsigned char *Packet, |
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/*IN*/ unsigned int PacketLength, |
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/*IN*/ unsigned int RecvInterfaceIndex, |
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/*IN*/ unsigned int SendInterfaceIndex, |
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/*IN*/ IPAddr RecvLinkNextHop, |
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/*IN*/ IPAddr SendLinkNextHop); |
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|
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typedef struct _PF_SET_EXTENSION_HOOK_INFO { |
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PacketFilterExtensionPtr ExtensionPointer; |
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} PF_SET_EXTENSION_HOOK_INFO, *PPF_SET_EXTENSION_HOOK_INFO; |
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|
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#define FSCTL_IPFLTRDRVR_BASE FILE_DEVICE_NETWORK |
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|
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#define _IPFLTRDRVR_CTL_CODE(function, method, access) \ |
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CTL_CODE(FSCTL_IPFLTRDRVR_BASE, function, method, access) |
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|
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#define IOCTL_PF_SET_EXTENSION_POINTER \ |
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_IPFLTRDRVR_CTL_CODE(22, METHOD_BUFFERED, FILE_WRITE_ACCESS) |
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|
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#endif /* __PFHOOK_H */ |
