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