Ip6Route.h

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#ifndef __EFI_IP6_ROUTE_H__
#define __EFI_IP6_ROUTE_H__
 
#define IP6_DIRECT_ROUTE    0x00000001
#define IP6_PACKET_TOO_BIG  0x00000010
 
#define IP6_ROUTE_CACHE_HASH_SIZE  31
#define IP6_ROUTE_CACHE_MAX  32
 
#define IP6_ROUTE_CACHE_HASH(Ip1, Ip2)  Ip6RouteCacheHash ((Ip1), (Ip2))
 
typedef struct {
  LIST_ENTRY          Link;
  INTN                RefCnt;
  UINT32              Flag;
  UINT8               PrefixLength;
  EFI_IPv6_ADDRESS    Destination;
  EFI_IPv6_ADDRESS    NextHop;
} IP6_ROUTE_ENTRY;
 
typedef struct {
  LIST_ENTRY          Link;
  INTN                RefCnt;
  UINTN               Tag;
  EFI_IPv6_ADDRESS    Destination;
  EFI_IPv6_ADDRESS    Source;
  EFI_IPv6_ADDRESS    NextHop;
} IP6_ROUTE_CACHE_ENTRY;
 
typedef struct {
  LIST_ENTRY    CacheBucket[IP6_ROUTE_CACHE_HASH_SIZE];
  UINT8         CacheNum[IP6_ROUTE_CACHE_HASH_SIZE];
} IP6_ROUTE_CACHE;
 
//
// Each IP6 instance has its own route table. Each ServiceBinding
// instance has a default route table and default address.
//
// All the route table entries with the same prefix length are linked
// together in one route area. For example, RouteArea[0] contains
// the default routes. A route table also contains a route cache.
//
 
typedef struct _IP6_ROUTE_TABLE {
  INTN               RefCnt;
  UINT32             TotalNum;
  LIST_ENTRY         RouteArea[IP6_PREFIX_NUM];
  IP6_ROUTE_CACHE    Cache;
} IP6_ROUTE_TABLE;
 
UINT32
Ip6RouteCacheHash (
  IN EFI_IPv6_ADDRESS  *Ip1,
  IN EFI_IPv6_ADDRESS  *Ip2
  );
 
IP6_ROUTE_CACHE_ENTRY *
Ip6CreateRouteCacheEntry (
  IN EFI_IPv6_ADDRESS  *Dst,
  IN EFI_IPv6_ADDRESS  *Src,
  IN EFI_IPv6_ADDRESS  *GateWay,
  IN UINTN             Tag
  );
 
VOID
Ip6FreeRouteCacheEntry (
  IN OUT IP6_ROUTE_CACHE_ENTRY  *RtCacheEntry
  );
 
IP6_ROUTE_CACHE_ENTRY *
Ip6FindRouteCache (
  IN IP6_ROUTE_TABLE   *RtTable,
  IN EFI_IPv6_ADDRESS  *Dest,
  IN EFI_IPv6_ADDRESS  *Src
  );
 
EFI_STATUS
Ip6BuildEfiRouteTable (
  IN IP6_ROUTE_TABLE       *RouteTable,
  OUT UINT32               *EfiRouteCount,
  OUT EFI_IP6_ROUTE_TABLE  **EfiRouteTable OPTIONAL
  );
 
IP6_ROUTE_TABLE *
Ip6CreateRouteTable (
  VOID
  );
 
VOID
Ip6CleanRouteTable (
  IN OUT IP6_ROUTE_TABLE  *RtTable
  );
 
IP6_ROUTE_ENTRY *
Ip6CreateRouteEntry (
  IN EFI_IPv6_ADDRESS  *Destination    OPTIONAL,
  IN UINT8             PrefixLength,
  IN EFI_IPv6_ADDRESS  *GatewayAddress OPTIONAL
  );
 
IP6_ROUTE_ENTRY *
Ip6FindRouteEntry (
  IN IP6_ROUTE_TABLE   *RtTable,
  IN EFI_IPv6_ADDRESS  *Destination OPTIONAL,
  IN EFI_IPv6_ADDRESS  *NextHop     OPTIONAL
  );
 
VOID
Ip6FreeRouteEntry (
  IN OUT IP6_ROUTE_ENTRY  *RtEntry
  );
 
EFI_STATUS
Ip6AddRoute (
  IN OUT IP6_ROUTE_TABLE  *RtTable,
  IN EFI_IPv6_ADDRESS     *Destination,
  IN UINT8                PrefixLength,
  IN EFI_IPv6_ADDRESS     *GatewayAddress
  );
 
EFI_STATUS
Ip6DelRoute (
  IN OUT IP6_ROUTE_TABLE  *RtTable,
  IN EFI_IPv6_ADDRESS     *Destination,
  IN UINT8                PrefixLength,
  IN EFI_IPv6_ADDRESS     *GatewayAddress
  );
 
IP6_ROUTE_CACHE_ENTRY *
Ip6Route (
  IN IP6_SERVICE       *IpSb,
  IN EFI_IPv6_ADDRESS  *Dest,
  IN EFI_IPv6_ADDRESS  *Src
  );
 
#endif