/********************************************************************/ /** Microsoft LAN Manager **/ /** Copyright(c) Microsoft Corp., 1990-1992 **/ /********************************************************************/ /* :ts=4 */ //** IP.H - IP public definitions. // // This file contains all of the definitions that are exported // out of the IP module to other VxDs. Some other information (such // as error codes and the IPOptInfo structure) is define in ipexport.h #pragma once #ifndef IP_H_INCLUDED #define IP_H_INCLUDED #ifndef IP_EXPORT_INCLUDED #include "ipexport.h" #endif #if !MILLEN #define TCP_NAME L"TCPIP" #else // !MILLEN #define TCP_NAME L"MSTCP" #endif // MILLEN #define IP_NET_STATUS 0 #define IP_HW_STATUS 1 #define IP_RECONFIG_STATUS 2 #define MASK_NET 0 #define MASK_SUBNET 1 #define IP_DRIVER_VERSION 1 #define TOS_DEFAULT 0x00 #define TOS_MASK 0x03 //* Capability Flags #define TCP_XMT_CHECKSUM_OFFLOAD 0x00000001 #define IP_XMT_CHECKSUM_OFFLOAD 0x00000002 #define TCP_RCV_CHECKSUM_OFFLOAD 0x00000004 #define IP_RCV_CHECKSUM_OFFLOAD 0x00000008 #define TCP_LARGE_SEND_OFFLOAD 0x00000010 // // IPSEC General Xmit\Recv capabilities // #define IPSEC_OFFLOAD_CRYPTO_ONLY 0x00000020 // Raw crypto mode supported #define IPSEC_OFFLOAD_AH_ESP 0x00000040 // Combined AH+ESP supported #define IPSEC_OFFLOAD_TPT_TUNNEL 0x00000080 // Combined Tpt+Tunnel supported #define IPSEC_OFFLOAD_V4_OPTIONS 0x00000100 // IPV4 Options supported #define IPSEC_OFFLOAD_QUERY_SPI 0x00000200 // Get SPI supported // // IPSEC AH Xmit\Recv capabilities // #define IPSEC_OFFLOAD_AH_XMT 0x00000400 // IPSEC supported on Xmit #define IPSEC_OFFLOAD_AH_RCV 0x00000800 // IPSEC supported on Rcv #define IPSEC_OFFLOAD_AH_TPT 0x00001000 // IPSEC transport mode supported #define IPSEC_OFFLOAD_AH_TUNNEL 0x00002000 // IPSEC tunnel mode supported #define IPSEC_OFFLOAD_AH_MD5 0x00004000 // MD5 supported as AH and ESP algo #define IPSEC_OFFLOAD_AH_SHA_1 0x00008000 // SHA_1 supported as AH and ESP algo // // IPSEC ESP Xmit\Recv capabilities // #define IPSEC_OFFLOAD_ESP_XMT 0x00010000 // IPSEC supported on Xmit #define IPSEC_OFFLOAD_ESP_RCV 0x00020000 // IPSEC supported on Rcv #define IPSEC_OFFLOAD_ESP_TPT 0x00040000 // IPSEC transport mode supported #define IPSEC_OFFLOAD_ESP_TUNNEL 0x00080000 // IPSEC tunnel mode supported #define IPSEC_OFFLOAD_ESP_DES 0x00100000 // DES supported as ESP algo #define IPSEC_OFFLOAD_ESP_DES_40 0x00200000 // DES40 supported as ESP algo #define IPSEC_OFFLOAD_ESP_3_DES 0x00400000 // 3DES supported as ESP algo #define IPSEC_OFFLOAD_ESP_NONE 0x00800000 // Null ESP supported as ESP algo #define IP_CHECKSUM_OPT_OFFLOAD 0x01000000 #define TCP_CHECKSUM_OPT_OFFLOAD 0x02000000 #define TCP_LARGE_SEND_TCPOPT_OFFLOAD 0x04000000 #define TCP_LARGE_SEND_IPOPT_OFFLOAD 0x08000000 #define PROTOCOL_ANY 0 // IP interface characteristics #define IF_FLAGS_P2P 1 // Point to point interface #define IF_FLAGS_DELETING 2 // Interface is in the process of going away #define IF_FLAGS_NOIPADDR 4 // unnumbered interface #define IF_FLAGS_P2MP 8 // Point to multi-point #define IF_FLAGS_REMOVING_POWER 0x10 // interface power is about to go away. #define IF_FLAGS_POWER_DOWN 0x20 // interface power is gone. #define IF_FLAGS_REMOVING_DEVICE 0x40 // query remove was indicated to us. #define IF_FLAGS_NOLINKBCST 0x80 // Needed for P2MP #define IF_FLAGS_UNI 0x100 // Uni-direction interface. #define IF_FLAGS_MEDIASENSE 0x200 // Indicates mediasense enabled on IF. //* IP Header format. typedef struct IPHeader { uchar iph_verlen; // Version and length. uchar iph_tos; // Type of service. ushort iph_length; // Total length of datagram. ushort iph_id; // Identification. ushort iph_offset; // Flags and fragment offset. uchar iph_ttl; // Time to live. uchar iph_protocol; // Protocol. ushort iph_xsum; // Header checksum. IPAddr iph_src; // Source address. IPAddr iph_dest; // Destination address. } IPHeader; /*NOINC*/ #define NULL_IP_ADDR 0 #define IP_ADDR_EQUAL(x,y) ((x) == (y)) #define IP_LOOPBACK_ADDR(x) (((x) & 0xff) == 0x7f) #define CLASSD_ADDR(a) (( (*((uchar *)&(a))) & 0xf0) == 0xe0) typedef void *IPContext; // An IP context value. //* Structure of a route cache entry. A route cache entry functions as a pointer // to some routing info. There is one per remote destination, and the memory // is owned by the IP layer. // #define RCE_CONTEXT_SIZE (sizeof(void *) * 2) // Right now we use two contexts. typedef struct RouteCacheEntry { struct RouteCacheEntry *rce_next; // Next RCE in list. struct RouteTableEntry *rce_rte; // Back pointer to owning RTE. IPAddr rce_dest; // Destination address being cached. IPAddr rce_src; // Source address for this RCE. uchar rce_flags; // Valid flags. uchar rce_dtype; // Type of destination address. uchar rce_TcpDelAckTicks; uchar rce_TcpAckFrequency; uint rce_usecnt; // Count of people using it. uchar rce_context[RCE_CONTEXT_SIZE]; // Space for lower layer context // // DEFINE_LOCK_STRUCTURE resolves to NULL on retail builds. // Moved this down so that debug ARP modules can co-exist with retail IP. // DEFINE_LOCK_STRUCTURE(rce_lock) // Lock for this RCE uint rce_OffloadFlags; // interface chksum capability flags NDIS_TASK_TCP_LARGE_SEND rce_TcpLargeSend; uint rce_TcpWindowSize; uint rce_TcpInitialRTT; uint rce_cnt; uint rce_mediaspeed; // for initial options selection. uint rce_newmtu; } RouteCacheEntry; // // Definiton for a rt table change callout. // TODO - pass a rt table entry and action - add, delete, update // In case of delete, it means that this route went away // typedef void (*IPRtChangePtr)( VOID ); #define RCE_VALID 0x1 #define RCE_CONNECTED 0x2 #define RCE_REFERENCED 0x4 #define RCE_DEADGW 0x8 #define RCE_LINK_DELETED 0x10 #define RCE_ALL_VALID (RCE_VALID | RCE_CONNECTED | RCE_REFERENCED) /*INC*/ //* Structure of option info. typedef struct IPOptInfo { uchar *ioi_options; // Pointer to options (NULL if none). IPAddr ioi_addr; // First hop address, if this is source routed. uchar ioi_optlength; // Length (in bytes) of options. uchar ioi_ttl; // Time to live of this packet. uchar ioi_tos; // Type of service for packet. uchar ioi_flags; // Flags for this packet. uchar ioi_hdrincl : 1; // use IP header coming from the user uchar ioi_TcpChksum : 1; uchar ioi_UdpChksum : 1; uchar ioi_limitbcasts : 2; uint ioi_uni; // UN numbered interface index uint ioi_ucastif; // strong host routing uint ioi_mcastif; // mcastif on unnumbered interface int ioi_GPCHandle; } IPOptInfo; #define IP_FLAG_SSRR 0x80 // There options have a SSRR in them. #define IP_FLAG_IPSEC 0x40 // Set if reinjected from IPSEC. typedef enum _IP_LIMIT_BCASTS { DisableSendOnSource, EnableSendOnSource, OnlySendOnSource } IP_LIMIT_BCASTS, *PIP_LIMIT_BCASTS; /*NOINC*/ //* Structure of a packet context. typedef struct PacketContext { struct PCCommon { PNDIS_PACKET pc_link; // Link on chain of packets. uchar pc_owner; // Owner of packet. uchar pc_flags; // Flags concerning this packet. ushort pc_pad; // Pad to 32 bit boundary. PVOID pc_IpsecCtx; // send complete ctx for IPSEC } pc_common; struct BufferReference *pc_br; // Pointer to buffer reference structure. struct ProtInfo *pc_pi; // Protocol info structure for this packet. void *pc_context; // Protocol context to be passed back on send cmplt. struct Interface *pc_if; // Interface this packet was sent on. PNDIS_BUFFER pc_hdrincl; PNDIS_BUFFER pc_firewall; struct IPRcvBuf *pc_firewall2; struct LinkEntry *pc_iflink; uchar pc_ipsec_flags; // for ipsec fragment path } PacketContext; // Different Modes we pass to ipsetndisrequest #define CLEAR_IF 0 // clear the option on the netcard plus the interface #define SET_IF 1 // set the option on the netcard plus the interface #define CLEAR_CARD 2 // clear the option only on the card // Flags passed to ipi_checkroute #define CHECK_RCE_ONLY 0x00000001 //* The structure of configuration information passed to an upper layer. // typedef struct IPInfo { uint ipi_version; // Version of the IP driver. uint ipi_hsize; // Size of the header. IP_STATUS (*ipi_xmit)(void *, void *, PNDIS_BUFFER, uint, IPAddr, IPAddr, IPOptInfo *, RouteCacheEntry *, uchar, IRP *); void *(*ipi_protreg)(uchar, void *, void *, void *, void *, void *, void *); IPAddr (*ipi_openrce)(IPAddr, IPAddr, RouteCacheEntry **, uchar *, ushort *, IPOptInfo *); void (*ipi_closerce)(RouteCacheEntry *); uchar (*ipi_getaddrtype)(IPAddr); uchar (*ipi_getlocalmtu)(IPAddr, ushort *); IP_STATUS (*ipi_getpinfo)(IPAddr, IPAddr, uint *, uint *, RouteCacheEntry *); void (*ipi_checkroute)(IPAddr, IPAddr, RouteCacheEntry *, IPOptInfo *, uint); void (*ipi_initopts)(struct IPOptInfo *); IP_STATUS (*ipi_updateopts)(struct IPOptInfo *, struct IPOptInfo *, IPAddr, IPAddr); IP_STATUS (*ipi_copyopts)(uchar *, uint, struct IPOptInfo *); IP_STATUS (*ipi_freeopts)(struct IPOptInfo *); long (*ipi_qinfo)(struct TDIObjectID *ID, PNDIS_BUFFER Buffer, uint *Size, void *Context); long (*ipi_setinfo)(struct TDIObjectID *ID, void *Buffer, uint Size); long (*ipi_getelist)(void *, uint *); IP_STATUS (*ipi_setmcastaddr)(IPAddr, IPAddr, uint, uint, IPAddr *, uint, IPAddr *); uint (*ipi_invalidsrc)(IPAddr); uint (*ipi_isdhcpinterface)(void *IPContext); ulong (*ipi_setndisrequest)(IPAddr, NDIS_OID, uint, uint); IP_STATUS (*ipi_largexmit)(void *, void *, PNDIS_BUFFER, uint, IPAddr, IPAddr, IPOptInfo *, RouteCacheEntry *, uchar,uint *, uint); ulong (*ipi_absorbrtralert)(IPAddr Addr, uchar Protocol, uint IfIndex); IPAddr (*ipi_isvalidindex)(uint Index); ulong (*ipi_getifindexfromnte)(void *NTE, uint Capabilities); BOOLEAN (*ipi_isrtralertpacket)(IPHeader UNALIGNED *Header); uint (*ipi_getifindexfromaddr)(IPAddr Addr, uint Capabilities); void (*ipi_cancelpackets)(void *, void *); IP_STATUS (*ipi_setmcastinclude)(IPAddr, IPAddr, uint, IPAddr *, uint, IPAddr *); IP_STATUS (*ipi_setmcastexclude)(IPAddr, IPAddr, uint, IPAddr *, uint, IPAddr *); IPAddr (*ipi_getmcastifaddr)(); ushort (*ipi_getipid)(); void *(*ipi_protdereg)(uchar); } IPInfo; /*INC*/ #define MCAST_INCLUDE 0 #define MCAST_EXCLUDE 1 #define PACKET_OWNER_LINK 0 #define PACKET_OWNER_IP 1 // Definition of destination types. We use the low bit to indicate that a type is a broadcast // type. All local types must be less than DEST_REMOTE. // // The various bits for this are set as follows: // // |--------| // MOB // // B Broadcast bit // O Offnet bit // M Multicast bit --> must also have the B bit set // #define DEST_LOCAL 0 // Destination is local. #define DEST_BCAST 1 // Destination is net or local bcast. #define DEST_SN_BCAST 3 // A subnet bcast. #define DEST_MCAST 5 // A local mcast. #define DEST_REMOTE 8 // Destination is remote. #define DEST_REM_BCAST 11 // Destination is a remote broadcast #define DEST_REM_MCAST 13 // Destination is a remote mcast. #define DEST_INVALID 0xff // Invalid destination #define DEST_PROMIS 32 // Dest is promiscuous(32=0x20) #define DEST_BCAST_BIT 1 #define DEST_OFFNET_BIT 0x10 // Destination is offnet - // used only by upper layer // callers. #define DEST_MCAST_BIT 5 /*NOINC*/ #define IS_BCAST_DEST(D) ((D) & DEST_BCAST_BIT) // The following macro is to be used ONLY on the destination returned from // OpenRCE, and only by upper layer callers. #define IS_OFFNET_DEST(D) ((D) & DEST_OFFNET_BIT) #define IS_MCAST_DEST(D) (((D) & DEST_MCAST_BIT) == DEST_MCAST_BIT) /*INC*/ // Definition of an IP receive buffer chain. typedef struct IPRcvBuf { struct IPRcvBuf *ipr_next; // Next buffer descriptor in chain. uint ipr_owner; // Owner of buffer. uchar *ipr_buffer; // Pointer to buffer. uint ipr_size; // Buffer size. PMDL ipr_pMdl; uint *ipr_pClientCnt; uchar *ipr_RcvContext; uint ipr_RcvOffset; ulong ipr_flags; } IPRcvBuf; #define IPR_OWNER_IP 0 #define IPR_OWNER_ICMP 1 #define IPR_OWNER_UDP 2 #define IPR_OWNER_TCP 3 #define IPR_OWNER_FIREWALL 4 #define MIN_FIRST_SIZE 200 // Minimum size of first buffer. #define IPR_FLAG_PROMISCUOUS 0x00000001 #define IPR_FLAG_CHECKSUM_OFFLOAD 0x00000002 #define IPR_FLAG_IPSEC_TRANSFORMED 0x00000004 //* Structure of context info. passed down for query entity list. typedef struct QEContext { uint qec_count; // Number of IDs currently in // buffer. struct TDIEntityID *qec_buffer; // Pointer to buffer. } QEContext; // // Function to get time ticks value to save in if_lastchange. // __inline ULONG GetTimeTicks() { LARGE_INTEGER Time; KeQuerySystemTime(&Time); // // Convert to 100ns (10^-7 seconds) to centaseconds (10^-2 seconds) // Time.QuadPart /= 100000; // // Return the result (mod 2^32) // return Time.LowPart; } // // Functions exported in NT by the IP driver for use by transport // layer drivers. // IP_STATUS IPGetInfo( IPInfo *Buffer, int Size ); void * IPRegisterProtocol( uchar Protocol, void *RcvHandler, void *XmitHandler, void *StatusHandler, void *RcvCmpltHandler, void *PnPHandler, void *ElistHandler ); void * IPDeregisterProtocol( uchar Protocol ); #endif // IP_H_INCLUDED