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authorAdam <you@example.com>2020-05-17 05:51:50 +0200
committerAdam <you@example.com>2020-05-17 05:51:50 +0200
commite611b132f9b8abe35b362e5870b74bce94a1e58e (patch)
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+/********************************************************************/
+/** 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
+
+#ifndef IP_H_INCLUDED
+#define IP_H_INCLUDED 1
+
+#ifndef IP_EXPORT_INCLUDED
+#include "ipexport.h"
+#endif
+
+#ifdef NT
+#ifdef _PNP_POWER
+#define TCP_NAME L"TCPIP"
+#else
+#define TCP_NAME L"MSTCP"
+#endif
+#else // NT
+#define TCP_NAME "MSTCP"
+#endif // NT
+#define IP_NET_STATUS 0
+#define IP_HW_STATUS 1
+
+#define MASK_NET 0
+#define MASK_SUBNET 1
+
+#define IP_DRIVER_VERSION 1
+
+#define PROTOCOL_ANY 0
+
+//* IP Header format.
+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 */
+
+typedef struct IPHeader 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.
+
+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.
+ ushort rce_cnt; // Ref count for this RCE.
+ uint rce_usecnt; // Count of people using it.
+ DEFINE_LOCK_STRUCTURE(rce_lock) // Lock for this RCE
+ uchar rce_context[RCE_CONTEXT_SIZE]; // Space for lower layer context
+}; /* RouteCacheEntry */
+
+typedef struct RouteCacheEntry RouteCacheEntry;
+
+#define RCE_VALID 0x1
+#define RCE_CONNECTED 0x2
+#define RCE_REFERENCED 0x4
+
+#ifdef _PNP_POWER
+
+#define RCE_ALL_VALID (RCE_VALID | RCE_CONNECTED | RCE_REFERENCED)
+
+#else // _PNP_POWER
+
+#define RCE_ALL_VALID (RCE_VALID | RCE_CONNECTED)
+
+#endif // _PNP_POWER
+
+/*INC*/
+
+//* Structure of option info.
+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.
+}; /* IPOptInfo */
+
+typedef struct IPOptInfo IPOptInfo;
+
+#define IP_FLAG_SSRR 0x80 // There options have a SSRR in them.
+
+/*NOINC*/
+//* Structure of a packet context.
+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.
+ } 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.
+#ifdef _PNP_POWER
+ struct Interface *pc_if; // Interface this packet was sent on.
+#endif
+}; /* PacketContext */
+
+typedef struct PacketContext PacketContext;
+
+//* The structure of configuration information passed to an upper layer.
+//
+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);
+ void *(*ipi_protreg)(uchar, 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 *);
+ void (*ipi_checkroute)(IPAddr, IPAddr);
+ 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 (*ipi_invalidsrc)(IPAddr);
+ uint (*ipi_isdhcpinterface)(void *IPContext);
+}; /* IPInfo */
+
+typedef struct IPInfo IPInfo;
+/*INC*/
+
+#define PACKET_OWNER_LINK 0
+#define PACKET_OWNER_IP 1
+
+// Definiton 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.
+
+#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 6 // Destination is remote.
+#define DEST_REM_BCAST 7 // Destination is a remote broadcast
+#define DEST_REM_MCAST 9 // Destination is a remote mcast.
+#define DEST_INVALID 0xff // Invalid destination
+
+#define DEST_BCAST_BIT 1
+#define DEST_OFFNET_BIT 0x10 // Destination is offnet -
+ // used only by upper layer
+ // callers.
+
+/*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)
+/*INC*/
+
+// Definition of an IP receive buffer chain.
+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.
+}; /* IPRcvBuf */
+
+typedef struct IPRcvBuf IPRcvBuf;
+
+
+#define IPR_OWNER_IP 0
+#define IPR_OWNER_ICMP 1
+#define IPR_OWNER_UDP 2
+#define IPR_OWNER_TCP 3
+#define MIN_FIRST_SIZE 200 // Minimum size of first buffer.
+
+//* Structure of context info. passed down for query entity list.
+struct QEContext {
+ uint qec_count; // Number of IDs currently in
+ // buffer.
+ struct TDIEntityID *qec_buffer; // Pointer to buffer.
+}; /* QEContext */
+
+typedef struct QEContext QEContext;
+
+
+#ifdef NT
+
+//
+// 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
+ );
+
+#endif // NT
+
+
+#endif // IP_H_INCLUDED
+