Initial commit after restructure
This commit is contained in:
Daniel
410
firewall/interception/windivert/windivert.h
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410
firewall/interception/windivert/windivert.h
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/*
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* windivert.h
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* (C) 2018, all rights reserved,
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*
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* This file is part of WinDivert.
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*
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* WinDivert is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* WinDivert is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __WINDIVERT_H
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#define __WINDIVERT_H
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#ifndef WINDIVERT_KERNEL
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#include <windows.h>
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#endif /* WINDIVERT_KERNEL */
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#ifndef WINDIVERTEXPORT
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#define WINDIVERTEXPORT __declspec(dllimport)
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#endif /* WINDIVERTEXPORT */
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#ifdef __MINGW32__
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#define __in
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#define __in_opt
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#define __out
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#define __out_opt
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#define __inout
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#define __inout_opt
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#include <stdint.h>
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#define INT8 int8_t
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#define UINT8 uint8_t
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#define INT16 int16_t
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#define UINT16 uint16_t
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#define INT32 int32_t
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#define UINT32 uint32_t
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#define INT64 int64_t
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#define UINT64 uint64_t
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#endif /* __MINGW32__ */
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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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/* WINDIVERT API */
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/****************************************************************************/
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/*
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* Divert address.
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*/
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typedef struct
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{
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INT64 Timestamp; /* Packet's timestamp. */
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UINT32 IfIdx; /* Packet's interface index. */
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UINT32 SubIfIdx; /* Packet's sub-interface index. */
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UINT8 Direction:1; /* Packet's direction. */
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UINT8 Loopback:1; /* Packet is loopback? */
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UINT8 Impostor:1; /* Packet is impostor? */
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UINT8 PseudoIPChecksum:1; /* Packet has pseudo IPv4 checksum? */
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UINT8 PseudoTCPChecksum:1; /* Packet has pseudo TCP checksum? */
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UINT8 PseudoUDPChecksum:1; /* Packet has pseudo UDP checksum? */
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UINT8 Reserved:2;
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} WINDIVERT_ADDRESS, *PWINDIVERT_ADDRESS;
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#define WINDIVERT_DIRECTION_OUTBOUND 0
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#define WINDIVERT_DIRECTION_INBOUND 1
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/*
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* Divert layers.
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*/
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typedef enum
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{
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WINDIVERT_LAYER_NETWORK = 0, /* Network layer. */
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WINDIVERT_LAYER_NETWORK_FORWARD = 1 /* Network layer (forwarded packets) */
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} WINDIVERT_LAYER, *PWINDIVERT_LAYER;
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/*
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* Divert flags.
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*/
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#define WINDIVERT_FLAG_SNIFF 1
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#define WINDIVERT_FLAG_DROP 2
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#define WINDIVERT_FLAG_DEBUG 4
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/*
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* Divert parameters.
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*/
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typedef enum
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{
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WINDIVERT_PARAM_QUEUE_LEN = 0, /* Packet queue length. */
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WINDIVERT_PARAM_QUEUE_TIME = 1, /* Packet queue time. */
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WINDIVERT_PARAM_QUEUE_SIZE = 2 /* Packet queue size. */
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} WINDIVERT_PARAM, *PWINDIVERT_PARAM;
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#define WINDIVERT_PARAM_MAX WINDIVERT_PARAM_QUEUE_SIZE
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#ifndef WINDIVERT_KERNEL
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/*
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* Open a WinDivert handle.
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*/
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extern WINDIVERTEXPORT HANDLE WinDivertOpen(
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__in const char *filter,
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__in WINDIVERT_LAYER layer,
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__in INT16 priority,
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__in UINT64 flags);
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/*
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* Receive (read) a packet from a WinDivert handle.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertRecv(
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__in HANDLE handle,
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__out PVOID pPacket,
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__in UINT packetLen,
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__out_opt PWINDIVERT_ADDRESS pAddr,
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__out_opt UINT *readLen);
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/*
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* Receive (read) a packet from a WinDivert handle.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertRecvEx(
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__in HANDLE handle,
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__out PVOID pPacket,
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__in UINT packetLen,
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__in UINT64 flags,
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__out_opt PWINDIVERT_ADDRESS pAddr,
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__out_opt UINT *readLen,
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__inout_opt LPOVERLAPPED lpOverlapped);
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/*
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* Send (write/inject) a packet to a WinDivert handle.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertSend(
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__in HANDLE handle,
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__in PVOID pPacket,
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__in UINT packetLen,
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__in PWINDIVERT_ADDRESS pAddr,
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__out_opt UINT *writeLen);
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/*
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* Send (write/inject) a packet to a WinDivert handle.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertSendEx(
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__in HANDLE handle,
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__in PVOID pPacket,
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__in UINT packetLen,
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__in UINT64 flags,
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__in PWINDIVERT_ADDRESS pAddr,
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__out_opt UINT *writeLen,
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__inout_opt LPOVERLAPPED lpOverlapped);
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/*
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* Close a WinDivert handle.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertClose(
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__in HANDLE handle);
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/*
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* Set a WinDivert handle parameter.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertSetParam(
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__in HANDLE handle,
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__in WINDIVERT_PARAM param,
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__in UINT64 value);
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/*
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* Get a WinDivert handle parameter.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertGetParam(
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__in HANDLE handle,
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__in WINDIVERT_PARAM param,
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__out UINT64 *pValue);
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#endif /* WINDIVERT_KERNEL */
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/****************************************************************************/
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/* WINDIVERT HELPER API */
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/****************************************************************************/
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/*
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* IPv4/IPv6/ICMP/ICMPv6/TCP/UDP header definitions.
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*/
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typedef struct
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{
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UINT8 HdrLength:4;
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UINT8 Version:4;
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UINT8 TOS;
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UINT16 Length;
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UINT16 Id;
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UINT16 FragOff0;
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UINT8 TTL;
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UINT8 Protocol;
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UINT16 Checksum;
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UINT32 SrcAddr;
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UINT32 DstAddr;
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} WINDIVERT_IPHDR, *PWINDIVERT_IPHDR;
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#define WINDIVERT_IPHDR_GET_FRAGOFF(hdr) \
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(((hdr)->FragOff0) & 0xFF1F)
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#define WINDIVERT_IPHDR_GET_MF(hdr) \
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((((hdr)->FragOff0) & 0x0020) != 0)
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#define WINDIVERT_IPHDR_GET_DF(hdr) \
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((((hdr)->FragOff0) & 0x0040) != 0)
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#define WINDIVERT_IPHDR_GET_RESERVED(hdr) \
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((((hdr)->FragOff0) & 0x0080) != 0)
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#define WINDIVERT_IPHDR_SET_FRAGOFF(hdr, val) \
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do \
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{ \
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(hdr)->FragOff0 = (((hdr)->FragOff0) & 0x00E0) | \
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((val) & 0xFF1F); \
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} \
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while (FALSE)
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#define WINDIVERT_IPHDR_SET_MF(hdr, val) \
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do \
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{ \
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(hdr)->FragOff0 = (((hdr)->FragOff0) & 0xFFDF) | \
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(((val) & 0x0001) << 5); \
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} \
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while (FALSE)
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#define WINDIVERT_IPHDR_SET_DF(hdr, val) \
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do \
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{ \
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(hdr)->FragOff0 = (((hdr)->FragOff0) & 0xFFBF) | \
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(((val) & 0x0001) << 6); \
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} \
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while (FALSE)
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#define WINDIVERT_IPHDR_SET_RESERVED(hdr, val) \
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do \
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{ \
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(hdr)->FragOff0 = (((hdr)->FragOff0) & 0xFF7F) | \
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(((val) & 0x0001) << 7); \
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} \
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while (FALSE)
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typedef struct
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{
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UINT8 TrafficClass0:4;
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UINT8 Version:4;
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UINT8 FlowLabel0:4;
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UINT8 TrafficClass1:4;
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UINT16 FlowLabel1;
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UINT16 Length;
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UINT8 NextHdr;
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UINT8 HopLimit;
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UINT32 SrcAddr[4];
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UINT32 DstAddr[4];
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} WINDIVERT_IPV6HDR, *PWINDIVERT_IPV6HDR;
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#define WINDIVERT_IPV6HDR_GET_TRAFFICCLASS(hdr) \
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((((hdr)->TrafficClass0) << 4) | ((hdr)->TrafficClass1))
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#define WINDIVERT_IPV6HDR_GET_FLOWLABEL(hdr) \
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((((UINT32)(hdr)->FlowLabel0) << 16) | ((UINT32)(hdr)->FlowLabel1))
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#define WINDIVERT_IPV6HDR_SET_TRAFFICCLASS(hdr, val) \
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do \
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{ \
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(hdr)->TrafficClass0 = ((UINT8)(val) >> 4); \
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(hdr)->TrafficClass1 = (UINT8)(val); \
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} \
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while (FALSE)
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#define WINDIVERT_IPV6HDR_SET_FLOWLABEL(hdr, val) \
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do \
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{ \
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(hdr)->FlowLabel0 = (UINT8)((val) >> 16); \
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(hdr)->FlowLabel1 = (UINT16)(val); \
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} \
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while (FALSE)
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typedef struct
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{
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UINT8 Type;
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UINT8 Code;
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UINT16 Checksum;
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UINT32 Body;
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} WINDIVERT_ICMPHDR, *PWINDIVERT_ICMPHDR;
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typedef struct
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{
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UINT8 Type;
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UINT8 Code;
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UINT16 Checksum;
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UINT32 Body;
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} WINDIVERT_ICMPV6HDR, *PWINDIVERT_ICMPV6HDR;
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typedef struct
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{
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UINT16 SrcPort;
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UINT16 DstPort;
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UINT32 SeqNum;
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UINT32 AckNum;
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UINT16 Reserved1:4;
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UINT16 HdrLength:4;
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UINT16 Fin:1;
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UINT16 Syn:1;
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UINT16 Rst:1;
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UINT16 Psh:1;
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UINT16 Ack:1;
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UINT16 Urg:1;
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UINT16 Reserved2:2;
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UINT16 Window;
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UINT16 Checksum;
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UINT16 UrgPtr;
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} WINDIVERT_TCPHDR, *PWINDIVERT_TCPHDR;
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typedef struct
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{
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UINT16 SrcPort;
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UINT16 DstPort;
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UINT16 Length;
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UINT16 Checksum;
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} WINDIVERT_UDPHDR, *PWINDIVERT_UDPHDR;
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#ifndef WINDIVERT_KERNEL
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/*
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* Flags for WinDivertHelperCalcChecksums()
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*/
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#define WINDIVERT_HELPER_NO_IP_CHECKSUM 1
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#define WINDIVERT_HELPER_NO_ICMP_CHECKSUM 2
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#define WINDIVERT_HELPER_NO_ICMPV6_CHECKSUM 4
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#define WINDIVERT_HELPER_NO_TCP_CHECKSUM 8
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#define WINDIVERT_HELPER_NO_UDP_CHECKSUM 16
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/*
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* Parse IPv4/IPv6/ICMP/ICMPv6/TCP/UDP headers from a raw packet.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertHelperParsePacket(
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__in PVOID pPacket,
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__in UINT packetLen,
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__out_opt PWINDIVERT_IPHDR *ppIpHdr,
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__out_opt PWINDIVERT_IPV6HDR *ppIpv6Hdr,
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__out_opt PWINDIVERT_ICMPHDR *ppIcmpHdr,
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__out_opt PWINDIVERT_ICMPV6HDR *ppIcmpv6Hdr,
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__out_opt PWINDIVERT_TCPHDR *ppTcpHdr,
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__out_opt PWINDIVERT_UDPHDR *ppUdpHdr,
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__out_opt PVOID *ppData,
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__out_opt UINT *pDataLen);
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/*
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* Parse an IPv4 address.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertHelperParseIPv4Address(
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__in const char *addrStr,
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__out_opt UINT32 *pAddr);
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/*
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* Parse an IPv6 address.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertHelperParseIPv6Address(
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__in const char *addrStr,
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__out_opt UINT32 *pAddr);
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/*
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* Calculate IPv4/IPv6/ICMP/ICMPv6/TCP/UDP checksums.
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*/
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extern WINDIVERTEXPORT UINT WinDivertHelperCalcChecksums(
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__inout PVOID pPacket,
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__in UINT packetLen,
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__in_opt PWINDIVERT_ADDRESS pAddr,
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__in UINT64 flags);
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/*
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* Check the given filter string.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertHelperCheckFilter(
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__in const char *filter,
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__in WINDIVERT_LAYER layer,
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__out_opt const char **errorStr,
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__out_opt UINT *errorPos);
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/*
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* Evaluate the given filter string.
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*/
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extern WINDIVERTEXPORT BOOL WinDivertHelperEvalFilter(
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__in const char *filter,
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__in WINDIVERT_LAYER layer,
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__in PVOID pPacket,
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__in UINT packetLen,
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__in PWINDIVERT_ADDRESS pAddr);
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#endif /* WINDIVERT_KERNEL */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __WINDIVERT_H */
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Reference in New Issue
Block a user