71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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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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#ifndef __PFHOOK_H
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#define __PFHOOK_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DD_IPFLTRDRVR_DEVICE_NAME L"\\Device\\IPFILTERDRIVER"
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#define INVALID_PF_IF_INDEX 0xffffffff
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#define ZERO_PF_IP_ADDR 0
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typedef ULONG IPAddr;
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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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typedef PF_FORWARD_ACTION
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(NTAPI *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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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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#define FSCTL_IPFLTRDRVR_BASE FILE_DEVICE_NETWORK
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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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#define IOCTL_PF_SET_EXTENSION_POINTER \
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_IPFLTRDRVR_CTL_CODE(22, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __PFHOOK_H */
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