Sample Code
Windows Driver Samples/ Windows Filtering Platform Sample/ C++/ syslib/ HelperFunctions_Headers.h/
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All Rights Reserved.//// Module Name:// HelperFunctions_Headers.h//// Abstract:// This module contains definitions and prototypes of kernel helper functions that assist with // MAC, IP, and Transport header operations.//// Author:// Dusty Harper (DHarper)//// Revision History://// [ Month ][Day] [Year] - [Revision]-[ Comments ]// May 01, 2010 - 1.0 - Creation//////////////////////////////////////////////////////////////////////////////////////////////////////#ifndef HELPERFUNCTIONS_HEADERS_H#define HELPERFUNCTIONS_HEADERS_H#pragma warning(push)#pragma warning(disable: 4201) /// NAMELESS_STRUCT_UNION#define ETHERNET_ADDRESS_SIZE 6#define IPV4_ADDRESS_SIZE 4#define IPV6_ADDRESS_SIZE 16#define IPV4 4#define IPV6 6#define IPV4_HEADER_MIN_SIZE 20#define IPV6_HEADER_MIN_SIZE 40#define ICMP_HEADER_MIN_SIZE 8#define TCP_HEADER_MIN_SIZE 20#define UDP_HEADER_MIN_SIZE 8#define ICMPV4 1#define TCP 6#define UDP 17#define ICMPV6 58static const UINT8 IPV4_LOOPBACK_ADDRESS[] = {0x01, 0x00, 0x00, 0x7F}; /// 127.0.0.1 ( in network byte order)static const UINT8 IPV6_LOOPBACK_ADDRESS[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}; /// ::1/* RFC 894 - A Standard for the Transmission of <br> IP Datagrams over Ethernet Networks <br> <br> 0 1 2 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + Destination MAC Address + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + Source MAC Address + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Type | Data... | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc894.html <br>*/typedef struct _ETHERNET_II_HEADER_{ BYTE pDestinationAddress[6]; BYTE pSourceAddress[6]; UINT16 type;}ETHERNET_II_HEADER;/* RFC 1042 - A Standard for the Transmission of <br> IP Datagrams over IEEE 802 Networks <br> <br> 0 1 2 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + Destination MAC Address + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + Source MAC Address + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Length | DSAP | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | SSAP | Control Byte | OUI ... > <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> < OUI (cont.) | Type ... > <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> < Type (cont.) | Data ... | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc1042.html <br>*/typedef struct _ETHERNET_SNAP_HEADER_{ BYTE pDestinationAddress[6]; BYTE pSourceAddress[6]; UINT16 length; UINT8 destinationSAP; /// Destination Subnetwork Access Protocol UINT8 sourceSAP; /// Source Subnetwork Access Protocol UINT8 controlByte; UINT8 pOUI[3]; /// Organizationally Unique Identifier UINT16 type;}ETHERNET_SNAP_HEADER;/* RFC 791 - Internet Protocol <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> |Version| IHL |Type of Service| Total Length | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Identification |Flags| Fragment Offset | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Time to Live | Protocol | Header Checksum | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Source Address | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Destination Address | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Options | Padding | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc791.html <br>*/typedef struct _IP_HEADER_V4_{ union { UINT8 versionAndHeaderLength; struct { UINT8 headerLength : 4; UINT8 version : 4; }; }; union { UINT8 typeOfService; UINT8 differentiatedServicesCodePoint; struct { UINT8 explicitCongestionNotification : 2; UINT8 typeOfService : 6; }; }; UINT16 totalLength; UINT16 identification; union { UINT16 flagsAndFragmentOffset; struct { UINT16 fragmentOffset : 13; UINT16 flags : 3; }; }; UINT8 timeToLive; UINT8 protocol; UINT16 checksum; BYTE pSourceAddress[sizeof(UINT32)]; BYTE pDestinationAddress[sizeof(UINT32)]; UINT8 pOptions[1]; /// pointer to the first byte of the variable length Options}IP_HEADER_V4, *PIP_HEADER_V4;/* RFC 2460 - Internet Protocol, Version 6 (IPv6) Specification <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> |Version| Traffic Class | Flow Label | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Payload Length | Next Header | Hop Limit | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + + <br> | | <br> + Source Address + <br> | | <br> + + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | | <br> + + <br> | | <br> + Destination Address + <br> | | <br> + + <br> | | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc2460.html <br>*/typedef struct _IP_HEADER_V6_{ union { UINT8 pVersionTrafficClassAndFlowLabel[4]; struct { UINT8 r1 : 4; UINT8 value : 4; UINT8 r2; UINT8 r3; UINT8 r4; }version; }; UINT16 payloadLength; UINT8 nextHeader; UINT8 hopLimit; BYTE pSourceAddress[16]; BYTE pDestinationAddress[16];}IP_HEADER_V6, *PIP_HEADER_V6;/* RFC 792 - Internet Control Message Protocol <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Type | Code | Checksum | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Variable (Dependent on Type / Code) | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br>*/typedef struct _ICMP_HEADER_V4_{ UINT8 type; UINT8 code; UINT16 checksum; union { ECHO_MESSAGE echo; DESTINATION_UNREACHABLE_MESSAGE destinationUnreachable; SOURCE_QUENCH_MESSAGE sourceQuench; REDIRECT_MESSAGE redirect; TIME_EXCEEDED_MESSAGE timeExceeded; PARAMETER_PROBLEM_MESSAGE parameterProblem; TIMESTAMP_MESSAGE timestamp; INFORMATION_MESSAGE information; };}ICMP_HEADER_V4, *PICMP_HEADER_V4;/* RFC 2463 - Internet Control Message Protocol for IPv6 <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Type | Code | Checksum | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Variable (Dependent on Type / Code) | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br>*/typedef struct _ICMP_HEADER_V6_{ UINT8 type; UINT8 code; UINT16 checksum;/* union { ECHO_MESSAGE echo; DESTINATION_UNREACHABLE_MESSAGE destinationUnreachable; SOURCE_QUENCH_MESSAGE sourceQuench; REDIRECT_MESSAGE redirect; TIME_EXCEEDED_MESSAGE timeExceeded; PARAMETER_PROBLEM_MESSAGE parameterProblem; TIMESTAMP_MESSAGE timestamp; INFORMATION_MESSAGE information; };*/}ICMP_HEADER_V6, *PICMP_HEADER_V6;/* RFC 793 - Transmission Control Protocol <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Source Port | Destination Port | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Sequence Number | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Acknowledgment Number | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> |Offset |Rsvd |N|C|E|U|A|P|R|S|F| Window | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Checksum | Urgent Pointer | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Options | Padding | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc793.html <br>*/typedef struct _TCP_HEADER_{ UINT16 sourcePort; UINT16 destinationPort; UINT32 sequenceNumber; UINT32 acknowledgementNumber; union { UINT8 dataOffsetReservedAndNS; struct { UINT8 nonceSum : 1; UINT8 reserved : 3; UINT8 dataOffset : 4; }dORNS; }; union { UINT8 controlBits; struct { UINT8 FIN : 1; UINT8 SYN : 1; UINT8 RST : 1; UINT8 PSH : 1; UINT8 ACK : 1; UINT8 URG : 1; UINT8 ECE : 1; UINT8 CWR : 1; }; }; UINT16 window; UINT16 checksum; UINT16 urgentPointer; UINT8 pOptions[1]; /// pointer to the first byte of the variable length Options}TCP_HEADER, *PTCP_HEADER;/* RFC 768 - User Datagram Protocol <br> <br> 0 1 2 3 <br> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Source Port | Destination Port | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> | Length | Checksum | <br> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <br> <br> RFC_REF: http://www.faqs.org/rfcs/rfc768.html <br>*/typedef struct _UDP_HEADER_{ UINT16 sourcePort; UINT16 destinationPort; UINT16 length; UINT16 checksum;}UDP_HEADER, *PUDP_HEADER;#pragma warning(pop) /// NAMELESS_STRUCT_UNION_At_(*ppMACHeader, _Pre_ _Notnull_)_At_(*ppMACHeader, _Post_ _Null_)_Success_(*ppMACHeader == 0)inline VOID KrnlHlprMACHeaderDestroy(_Inout_ VOID** ppMACHeader);_When_(return != STATUS_SUCCESS, _At_(*ppMACHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppMACHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprMACHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppMACHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 macHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprMACHeaderModifySourceAddress(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprMACHeaderModifyDestinationAddress(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList);_At_(*ppIPHeader, _Pre_ _Notnull_)_At_(*ppIPHeader, _Post_ _Null_)_Success_(*ppIPHeader == 0)inline VOID KrnlHlprIPHeaderDestroy(_Inout_ VOID** ppIPHeader);_When_(return != STATUS_SUCCESS, _At_(*ppIPHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppIPHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprIPHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _In_ const FWPS_INCOMING_VALUES* pClassifyValues, _In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata, _Outptr_ VOID** ppIPHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _Inout_opt_ FWP_DIRECTION* pDirection = 0, _Inout_opt_ UINT32* pIPHeaderSize = 0);_When_(return != STATUS_SUCCESS, _At_(*ppIPHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppIPHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprIPHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppIPHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 ipHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same_IPPROTO KrnlHlprIPHeaderGetProtocolField(_In_ NET_BUFFER_LIST* pNetBufferList, _In_ ADDRESS_FAMILY addressFamily);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same_inline VOID KrnlHlprIPHeaderCalculateV4Checksum(_Inout_ IP_HEADER_V4* pIPv4Header, _In_ UINT32 headerSize);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprIPHeaderModifySourceAddress(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ const BOOLEAN recalculateChecksum = TRUE, _In_ BOOLEAN convertByteOrder = FALSE);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprIPHeaderModifyDestinationAddress(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ const BOOLEAN recalculateChecksum = TRUE, _In_ BOOLEAN convertByteOrder = FALSE);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprIPHeaderModifyLoopbackToLocal(_In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata, _In_ const FWP_VALUE* pRemoteAddress, _In_ const UINT32 ipHeaderSize, _Inout_ NET_BUFFER_LIST* pNetBufferList);_At_(*ppTransportHeader, _Pre_ _Notnull_)_At_(*ppTransportHeader, _Post_ _Null_)_Success_(*ppTransportHeader == 0)inline VOID KrnlHlprTransportHeaderDestroy(_Inout_ VOID** ppTransportHeader);_When_(return != STATUS_SUCCESS, _At_(*ppTransportHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppTransportHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprTransportHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _In_ const FWPS_INCOMING_VALUES* pClassifyValues, _In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata, _Outptr_ VOID** ppTransportHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _Inout_opt_ IPPROTO* pProtocol = 0, _Inout_opt_ FWP_DIRECTION* pDirection = 0, _Inout_opt_ UINT32* pTransportHeaderSize = 0);_When_(return != STATUS_SUCCESS, _At_(*ppTransportHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppTransportHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprTransportHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppTransportHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 transportHeaderSize = 0);_When_(return != STATUS_SUCCESS, _At_(*ppICMPv4Header, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppICMPv4Header, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv4HeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppICMPv4Header, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 icmpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv4HeaderModifyType(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 icmpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv4HeaderModifyCode(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 icmpHeaderSize = 0);_When_(return != STATUS_SUCCESS, _At_(*ppICMPv4Header, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppICMPv4Header, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv6HeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppICMPv4Header, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 icmpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv6HeaderModifyType(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 icmpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprICMPv6HeaderModifyCode(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 icmpHeaderSize = 0);_When_(return != STATUS_SUCCESS, _At_(*ppTCPHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppTCPHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprTCPHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppTCPHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 tcpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprTCPHeaderModifySourcePort(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 tcpHeaderSize = 0, _In_ BOOLEAN convertByteOrder = FALSE);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprTCPHeaderModifyDestinationPort(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 tcpHeaderSize = 0, _In_ BOOLEAN convertByteOrder = FALSE);_When_(return != STATUS_SUCCESS, _At_(*ppUDPHeader, _Post_ _Null_))_When_(return == STATUS_SUCCESS, _At_(*ppUDPHeader, _Post_ _Notnull_))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprUDPHeaderGet(_In_ NET_BUFFER_LIST* pNetBufferList, _Outptr_ VOID** ppUDPHeader, _Inout_ BOOLEAN* pNeedToFreeMemory, _In_ UINT32 udpHeaderSize = 0);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprUDPHeaderModifySourcePort(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 udpHeaderSize = 0, _In_ BOOLEAN convertByteOrder = FALSE);_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Check_return__Success_(return == STATUS_SUCCESS)NTSTATUS KrnlHlprUDPHeaderModifyDestinationPort(_In_ const FWP_VALUE* pValue, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ UINT32 udpheaderSize = 0, _In_ BOOLEAN convertByteOrder = FALSE);#endif /// HELPERFUNCTIONS_HEADERS_H |
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