Source code of Windows XP (NT5)
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/*
*============================================================================
* Copyright (c) 1994-95, Microsoft Corp.
*
* File: map.h
*
* Contains declarations for the functions that map old style routetab
* functions to the iphlpapi functions.
*
* AddRoute
* DeleteRoute
* GetRouteTable
* FreeRouteTable
* GetInterfaceTable
* FreeInterfaceTable
*
* The structures required by these functions are also declared here:
*
* IPROUTING_ENTRY
* IPINTERFACE_ENTRY
*
* Routes can be added to and deleted from the IP routing table by other
* means. Therefore, it is necessary for any protocol using these functions
* to reload the routing tables periodically.
*============================================================================
*/
#ifndef _MAP_H_
#define _MAP_H_
/*
*---------------------------------------------------------------
* Any one of these values can be passed as the route entry type
* when calling the AddRoute() function.
*---------------------------------------------------------------
*/
#define IRE_TYPE_OTHER 1
#define IRE_TYPE_INVALID 2
#define IRE_TYPE_DIRECT 3
#define IRE_TYPE_INDIRECT 4
/*
*-------------------------------------------------------------
* Any one of these values can be passed as the protocol type
* when calling AddRoute() or DeleteRoute()
*-------------------------------------------------------------
*/
#define IRE_PROTO_OTHER 1
#define IRE_PROTO_LOCAL 2
#define IRE_PROTO_NETMGMT 3
#define IRE_PROTO_ICMP 4
#define IRE_PROTO_EGP 5
#define IRE_PROTO_GGP 6
#define IRE_PROTO_HELLO 7
#define IRE_PROTO_RIP 8
#define IRE_PROTO_IS_IS 9
#define IRE_PROTO_ES_IS 10
#define IRE_PROTO_CISCO 11
#define IRE_PROTO_BBN 12
#define IRE_PROTO_OSPF 13
#define IRE_PROTO_BGP 14
/*
*-------------------------------------------------------------
* This value may be passed as the metric to functions which
* require a metric, in cases where the metric is irrelevant
*-------------------------------------------------------------
*/
#define IRE_METRIC_UNUSED 0xffffffff
/*
*-------------------------------------------------------------
* These constants are used in the definition of IF_ENTRY
*-------------------------------------------------------------
*/
#define MAX_PHYSADDR_SIZE 8
#define MAX_IFDESCR_LEN 256
/*
*-------------------------------------------------------------
* This structure is used by GetIPAddressTable() to return
* information about logical IP interfaces on the system
*-------------------------------------------------------------
*/
typedef struct _IPADDRESS_ENTRY {
DWORD iae_address; /* IP address of this entry */
DWORD iae_index; /* index of interface for this entry */
DWORD iae_netmask; /* subnet mask of this entry */
DWORD iae_bcastaddr;
DWORD iae_reasmsize;
USHORT iae_context;
USHORT iae_pad;
} IPADDRESS_ENTRY, *LPIPADDRESS_ENTRY;
/*
*-------------------------------------------------------------
* This structure is used by GetRouteTable() to return
* information about routing table entries.
*-------------------------------------------------------------
*/
typedef struct _IPROUTE_ENTRY {
DWORD ire_dest; /* destination IP addr, network order */
DWORD ire_mask; /* network mask, network order */
DWORD ire_policy; /* policy duh(?) */
DWORD ire_nexthop; /* next hop IP addr, network order */
DWORD ire_index; /* route entry index */
DWORD ire_type; /* routing type for this entry */
DWORD ire_proto; /* routing protocol for this entry */
DWORD ire_age; /* age of this entry */
DWORD ire_nexthopas; /* next hop as */
DWORD ire_metric1; /* destination metric, host order */
DWORD ire_metric2; /* unused */
DWORD ire_metric3; /* unused */
DWORD ire_metric4; /* unused */
DWORD ire_metric5; /* unused */
} IPROUTE_ENTRY, *LPIPROUTE_ENTRY;
/*
*------------------------------------------------------------------
* Function: GetIPAddressTable
*
* Parameters:
* LPIPADDRESS_ENTRY
* *lplpAddrTable pointer to an LPIPADDRESS_ENTRY
* which receives the IP address table
* LPDWORD lpdwAddrCount pointer to a DWORD which receives
* the number of addresses in the table
*
* This function allocates and fills in an array of address entry
* structures corresponding to the logical IP interfaces in
* the system. It also stores the number of entries in the array
* in the DWORD pointed to by lpdwAddrCount.
*
* Call FreeIPAddressTable to free the memory allocated for the
* address table.
*
* If the function fails, it sets *lpdwAddrCount to zero and
* *lplpAddrTable to NULL.
*
* It returns 0 if successful and non-zero otherwise
*------------------------------------------------------------------
*/
DWORD
GetIPAddressTable(
OUT PMIB_IPADDRROW *lplpAddrTable,
OUT LPDWORD lpdwAddrCount
);
/*
*------------------------------------------------------------------
* Function: FreeIPAddressTable
*
* Parameters:
* LPIPADDRESS_ENTRY
* lpAddrTable the address table to be freed.
*
* This function frees the memory allocated for an address table.
* It returns 0 if successful and non-zero otherwise.
*------------------------------------------------------------------
*/
DWORD
FreeIPAddressTable(
IN PMIB_IPADDRROW lpAddrTable
);
/*
*------------------------------------------------------------------
* Function: GetRouteTable
*
* Parameters:
* LPIPROUTE_ENTRY
* *lplpRouteTable pointer to an LPIPROUTE_ENTRY
* which receives the routing table
* DWORD *lpdwRouteCount pointer to a DWORD which receives
* the number of routing entries
*
* This function allocates and fills in an array of routing table
* entries from the Tcpip driver. It also sets the number of
* entries in the array in the DWORD pointed to by lpdwRouteCount.
*
* In the IPROUTE_ENTRY structure, the only metric used by
* the Tcpip stack is IPROUTE_ENTRY.ire_metric1; the other metric
* fields should be ignored.
*
* Call FreeRouteTable to free the memory allocated for the
* routing table.
*
* If the function fails, it sets *lpdwRouteCount to zero and
* *lplpRouteTable to NULL.
*
* It returns 0 if successful and non-zero otherwise
*------------------------------------------------------------------
*/
DWORD
GetRouteTable(
OUT LPIPROUTE_ENTRY *lplpRouteTable,
OUT LPDWORD lpdwRouteCount
);
/*
*------------------------------------------------------------------
* Function: FreeRouteTable
*
* Parameters:
* LPIPROUTE_ENTRY
* lpRouteTable the routing table to be freed.
*
* This function frees the memory allocated for a routing table.
* It returns 0 if successful and non-zero otherwise.
*------------------------------------------------------------------
*/
DWORD
FreeRouteTable(
IN LPIPROUTE_ENTRY lpRouteTable
);
/*
*------------------------------------------------------------------
* Function: AddRoute
*
* Parameters:
* DWORD dwProtocol protocol of specified route
* DWORD dwType type of specified route
* DWORD dwIndex index of interface on which to add
* DWORD dwDestVal destination IP addr (network order)
* DWORD dwMaskVal destination subnet mask, or zero
* if no subnet (network order)
* DWORD dwGateVal next hop IP addr (network order)
* DWORD dwMetric metric
*
* This function adds a new route (or updates an existing route)
* for the specified protocol, on the specified interface.
* (See above for values which can be used as protocol numbers,
* as well as values which can be used as route entry types.)
* If the route identified by dwIndex.dwDestVal.dwMaskVal.dwGateVal
* already exists, it is updated with the specified protocol,
* type, and metric.
* The TCP stack will return an error on an attempt to add a route
* whose destination is destination is longer than its mask.
* In other words, this function fails if (dwDestVal & ~dwMaskVal)
* is non-zero.
*
* Returns 0 if successful, non-zero otherwise.
*------------------------------------------------------------------
*/
DWORD
AddRoute(
IN DWORD dwProtocol,
IN DWORD dwType,
IN DWORD dwIndex,
IN DWORD dwDestVal,
IN DWORD dwMaskVal,
IN DWORD dwGateVal,
IN DWORD dwMetric
);
/*
*------------------------------------------------------------------
* Function: DeleteRoute
*
* Parameters:
* DWORD dwIndex index of interface from which to delete
* DWORD dwDestVal destination IP addr (network order)
* DWORD dwMaskVal subnet mask (network order)
* DWORD dwGateVal next hop IP addr (network order)
*
* This function deletes a route to the specified destination.
*
* Returns 0 if successful, non-zero otherwise.
*------------------------------------------------------------------
*/
DWORD
DeleteRoute(
IN DWORD dwIndex,
IN DWORD dwDestVal,
IN DWORD dwMaskVal,
IN DWORD dwGateVal
);
/*
*------------------------------------------------------------------
* Function: ReloadIPAddressTable
*
* Parameters:
* LPIPADDRESS_ENTRY
* *lplpAddrTable pointer to an LPIPADDRESS_ENTRY
* which receives the IP address table
* LPDWORD lpdwAddrCount pointer to a DWORD which receives
* the number of addresses in the table
*
* This function first queries the TCP/IP stack to rebuild its
* IP interface and IP address tables.
* Then this function allocates and fills in an array of address entry
* structures corresponding to the logical IP interfaces in
* the system. It also stores the number of entries in the array
* in the DWORD pointed to by lpdwAddrCount.
*
* Call FreeIPAddressTable to free the memory allocated for the
* address table.
*
* If the function fails, it sets *lpdwAddrCount to zero and
* *lplpAddrTable to NULL.
*
* It returns 0 if successful and non-zero otherwise
*------------------------------------------------------------------
*/
DWORD
ReloadIPAddressTable(
OUT PMIB_IPADDRROW *lplpAddrTable,
OUT LPDWORD lpdwAddrCount
);
#endif /* _MAP_H_ */