-/** @file
-
-Copyright (c) 2005 - 2007, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- NetLib.h
-
-Abstract:
-
- Library for the UEFI network stack.
-
-
-**/
-
-#ifndef _NET_LIB_H_
-#define _NET_LIB_H_
-
-#include <PiDxe.h>
-#include <Protocol/DriverBinding.h>
-#include <Protocol/ComponentName.h>
-#include <Protocol/DriverConfiguration.h>
-#include <Protocol/DriverDiagnostics.h>
-
-#define EFI_NET_LITTLE_ENDIAN
-
-typedef UINT32 IP4_ADDR;
-typedef UINT32 TCP_SEQNO;
-typedef UINT16 TCP_PORTNO;
-
-enum {
- NET_ETHER_ADDR_LEN = 6,
- NET_IFTYPE_ETHERNET = 0x01,
-
- EFI_IP_PROTO_UDP = 0x11,
- EFI_IP_PROTO_TCP = 0x06,
- EFI_IP_PROTO_ICMP = 0x01,
-
- //
- // The address classfication
- //
- IP4_ADDR_CLASSA = 1,
- IP4_ADDR_CLASSB,
- IP4_ADDR_CLASSC,
- IP4_ADDR_CLASSD,
- IP4_ADDR_CLASSE,
-
- IP4_MASK_NUM = 33,
-};
-
-#pragma pack(1)
-
-//
-// Ethernet head definition
-//
-typedef struct {
- UINT8 DstMac [NET_ETHER_ADDR_LEN];
- UINT8 SrcMac [NET_ETHER_ADDR_LEN];
- UINT16 EtherType;
-} ETHER_HEAD;
-
-
-//
-// The EFI_IP4_HEADER is hard to use because the source and
-// destination address are defined as EFI_IPv4_ADDRESS, which
-// is a structure. Two structures can't be compared or masked
-// directly. This is why there is an internal representation.
-//
-typedef struct {
-#ifdef EFI_NET_LITTLE_ENDIAN
- UINT8 HeadLen : 4;
- UINT8 Ver : 4;
-#else
- UINT8 Ver : 4;
- UINT8 HeadLen : 4;
-#endif
- UINT8 Tos;
- UINT16 TotalLen;
- UINT16 Id;
- UINT16 Fragment;
- UINT8 Ttl;
- UINT8 Protocol;
- UINT16 Checksum;
- IP4_ADDR Src;
- IP4_ADDR Dst;
-} IP4_HEAD;
-
-
-//
-// ICMP head definition. ICMP message is categoried as either an error
-// message or query message. Two message types have their own head format.
-//
-typedef struct {
- UINT8 Type;
- UINT8 Code;
- UINT16 Checksum;
-} IP4_ICMP_HEAD;
-
-typedef struct {
- IP4_ICMP_HEAD Head;
- UINT32 Fourth; // 4th filed of the head, it depends on Type.
- IP4_HEAD IpHead;
-} IP4_ICMP_ERROR_HEAD;
-
-typedef struct {
- IP4_ICMP_HEAD Head;
- UINT16 Id;
- UINT16 Seq;
-} IP4_ICMP_QUERY_HEAD;
-
-
-//
-// UDP header definition
-//
-typedef struct {
- UINT16 SrcPort;
- UINT16 DstPort;
- UINT16 Length;
- UINT16 Checksum;
-} EFI_UDP4_HEADER;
-
-
-//
-// TCP header definition
-//
-typedef struct {
- TCP_PORTNO SrcPort;
- TCP_PORTNO DstPort;
- TCP_SEQNO Seq;
- TCP_SEQNO Ack;
-#ifdef EFI_NET_LITTLE_ENDIAN
- UINT8 Res : 4;
- UINT8 HeadLen : 4;
-#else
- UINT8 HeadLen : 4;
- UINT8 Res : 4;
-#endif
- UINT8 Flag;
- UINT16 Wnd;
- UINT16 Checksum;
- UINT16 Urg;
-} TCP_HEAD;
-
-#pragma pack()
-
-#define NET_MAC_EQUAL(pMac1, pMac2, Len) \
- (NetCompareMem ((pMac1), (pMac2), Len) == 0)
-
-#define NET_MAC_IS_MULTICAST(Mac, BMac, Len) \
- (((*((UINT8 *) Mac) & 0x01) == 0x01) && (!NET_MAC_EQUAL (Mac, BMac, Len)))
-
-#ifdef EFI_NET_LITTLE_ENDIAN
-#define NTOHL(x) (UINT32)((((UINT32) (x) & 0xff) << 24) | \
- (((UINT32) (x) & 0xff00) << 8) | \
- (((UINT32) (x) & 0xff0000) >> 8) | \
- (((UINT32) (x) & 0xff000000) >> 24))
-
-#define HTONL(x) NTOHL(x)
-
-#define NTOHS(x) (UINT16)((((UINT16) (x) & 0xff) << 8) | \
- (((UINT16) (x) & 0xff00) >> 8))
-
-#define HTONS(x) NTOHS(x)
-#else
-#define NTOHL(x) (UINT32)(x)
-#define HTONL(x) (UINT32)(x)
-#define NTOHS(x) (UINT16)(x)
-#define HTONS(x) (UINT16)(x)
-#endif
-
-//
-// Test the IP's attribute, All the IPs are in host byte order.
-//
-#define IP4_IS_MULTICAST(Ip) (((Ip) & 0xF0000000) == 0xE0000000)
-#define IP4_IS_LOCAL_BROADCAST(Ip) ((Ip) == 0xFFFFFFFF)
-#define IP4_NET_EQUAL(Ip1, Ip2, NetMask) (((Ip1) & (NetMask)) == ((Ip2) & (NetMask)))
-#define IP4_IS_VALID_NETMASK(Ip) (NetGetMaskLength (Ip) != IP4_MASK_NUM)
-
-//
-// Convert the EFI_IP4_ADDRESS to plain UINT32 IP4 address.
-//
-#define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))
-#define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))
-#define EFI_IP_EQUAL(Ip1, Ip2) (EFI_IP4 (Ip1) == EFI_IP4 (Ip2))
-
-INTN
-NetGetMaskLength (
- IN IP4_ADDR Mask
- );
-
-INTN
-NetGetIpClass (
- IN IP4_ADDR Addr
- );
-
-BOOLEAN
-Ip4IsUnicast (
- IN IP4_ADDR Ip,
- IN IP4_ADDR NetMask
- );
-
-extern IP4_ADDR mIp4AllMasks [IP4_MASK_NUM];
-
-//@MT:#include EFI_PROTOCOL_CONSUMER (LoadedImage)
-//@MT:#include EFI_PROTOCOL_CONSUMER (ServiceBinding)
-//@MT:#include EFI_PROTOCOL_CONSUMER (SimpleNetwork)
-
-//
-// Wrap functions to ease the impact of EFI library changes.
-//
-#define NetAllocateZeroPool AllocateZeroPool
-#define NetAllocatePool AllocatePool
-#define NetFreePool gBS->FreePool
-#define NetCopyMem CopyMem
-#define NetSetMem SetMem
-#define NetZeroMem(Dest, Len) SetMem ((Dest), (Len), 0)
-#define NetCompareMem CompareMem
-
-//
-// Lock primitives: the stack implements its lock primitives according
-// to the standard EFI enviornment. It will NOT consider multiprocessor.
-//
-#define NET_TPL_LOCK TPL_CALLBACK
-#define NET_TPL_RECYCLE_LOCK (NET_TPL_LOCK + 1)
-#define NET_TPL_EVENT TPL_CALLBACK
-#define NET_TPL_RECYCLE (NET_TPL_LOCK + 1)
-#define NET_TPL_SLOW_TIMER (TPL_CALLBACK - 1)
-#define NET_TPL_FAST_TIMER NET_TPL_RECYCLE
-#define NET_TPL_TIMER TPL_CALLBACK
-
-#define NET_LOCK EFI_LOCK
-#define NET_LOCK_INIT(x) EfiInitializeLock (x, NET_TPL_LOCK)
-#define NET_RECYCLE_LOCK_INIT(x) EfiInitializeLock (x, NET_TPL_RECYCLE_LOCK)
-#define NET_TRYLOCK(x) EfiAcquireLockOrFail (x)
-#define NET_UNLOCK(x) EfiReleaseLock (x)
-
-#define NET_RAISE_TPL(x) (gBS->RaiseTPL (x))
-#define NET_RESTORE_TPL(x) (gBS->RestoreTPL (x))
-
-#define TICKS_PER_MS 10000U
-#define TICKS_PER_SECOND 10000000U
-
-#define NET_MIN(a, b) ((a) < (b) ? (a) : (b))
-#define NET_MAX(a, b) ((a) > (b) ? (a) : (b))
-#define NET_RANDOM(Seed) (((Seed) * 1103515245L + 12345) % 4294967295L)
-
-
-UINT32
-NetGetUint32 (
- IN UINT8 *Buf
- );
-
-VOID
-NetPutUint32 (
- IN UINT8 *Buf,
- IN UINT32 Data
- );
-
-UINT32
-NetRandomInitSeed (
- VOID
- );
-
-
-//
-// Double linked list entry functions, this extends the
-// EFI list functions.
-//
-typedef LIST_ENTRY NET_LIST_ENTRY;
-
-#define NetListInit(Head) InitializeListHead(Head)
-#define NetListInsertHead(Head, Entry) InsertHeadList((Head), (Entry))
-#define NetListInsertTail(Head, Entry) InsertTailList((Head), (Entry))
-#define NetListIsEmpty(List) IsListEmpty(List)
-
-#define NET_LIST_USER_STRUCT(Entry, Type, Field) \
- _CR(Entry, Type, Field)
-
-#define NET_LIST_USER_STRUCT_S(Entry, Type, Field, Sig) \
- CR(Entry, Type, Field, Sig)
-
-//
-// Iterate through the doule linked list. It is NOT delete safe
-//
-#define NET_LIST_FOR_EACH(Entry, ListHead) \
- for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)
-
-//
-// Iterate through the doule linked list. This is delete-safe.
-// Don't touch NextEntry. Also, don't use this macro if list
-// entries other than the Entry may be deleted when processing
-// the current Entry.
-//
-#define NET_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \
- for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink; \
- Entry != (ListHead); \
- Entry = NextEntry, NextEntry = Entry->ForwardLink \
- )
-
-//
-// Make sure the list isn't empty before get the frist/last record.
-//
-#define NET_LIST_HEAD(ListHead, Type, Field) \
- NET_LIST_USER_STRUCT((ListHead)->ForwardLink, Type, Field)
-
-#define NET_LIST_TAIL(ListHead, Type, Field) \
- NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)
-
-#define NetListRemoveEntry(Entry) RemoveEntryList (Entry)
-
-NET_LIST_ENTRY*
-NetListRemoveHead (
- NET_LIST_ENTRY *Head
- );
-
-NET_LIST_ENTRY*
-NetListRemoveTail (
- NET_LIST_ENTRY *Head
- );
-
-VOID
-NetListInsertAfter (
- IN NET_LIST_ENTRY *PrevEntry,
- IN NET_LIST_ENTRY *NewEntry
- );
-
-VOID
-NetListInsertBefore (
- IN NET_LIST_ENTRY *PostEntry,
- IN NET_LIST_ENTRY *NewEntry
- );
-
-
-//
-// Object container: EFI network stack spec defines various kinds of
-// tokens. The drivers can share code to manage those objects.
-//
-typedef struct {
- NET_LIST_ENTRY Link;
- VOID *Key;
- VOID *Value;
-} NET_MAP_ITEM;
-
-typedef struct {
- NET_LIST_ENTRY Used;
- NET_LIST_ENTRY Recycled;
- UINTN Count;
-} NET_MAP;
-
-#define NET_MAP_INCREAMENT 64
-
-VOID
-NetMapInit (
- IN NET_MAP *Map
- );
-
-VOID
-NetMapClean (
- IN NET_MAP *Map
- );
-
-BOOLEAN
-NetMapIsEmpty (
- IN NET_MAP *Map
- );
-
-UINTN
-NetMapGetCount (
- IN NET_MAP *Map
- );
-
-EFI_STATUS
-NetMapInsertHead (
- IN NET_MAP *Map,
- IN VOID *Key,
- IN VOID *Value OPTIONAL
- );
-
-EFI_STATUS
-NetMapInsertTail (
- IN NET_MAP *Map,
- IN VOID *Key,
- IN VOID *Value OPTIONAL
- );
-
-NET_MAP_ITEM *
-NetMapFindKey (
- IN NET_MAP *Map,
- IN VOID *Key
- );
-
-VOID *
-NetMapRemoveItem (
- IN NET_MAP *Map,
- IN NET_MAP_ITEM *Item,
- OUT VOID **Value OPTIONAL
- );
-
-VOID *
-NetMapRemoveHead (
- IN NET_MAP *Map,
- OUT VOID **Value OPTIONAL
- );
-
-VOID *
-NetMapRemoveTail (
- IN NET_MAP *Map,
- OUT VOID **Value OPTIONAL
- );
-
-typedef
-EFI_STATUS
-(*NET_MAP_CALLBACK) (
- IN NET_MAP *Map,
- IN NET_MAP_ITEM *Item,
- IN VOID *Arg
- );
-
-EFI_STATUS
-NetMapIterate (
- IN NET_MAP *Map,
- IN NET_MAP_CALLBACK CallBack,
- IN VOID *Arg OPTIONAL
- );
-
-
-//
-// Helper functions to implement driver binding and service binding protocols.
-//
-EFI_STATUS
-NetLibCreateServiceChild (
- IN EFI_HANDLE ControllerHandle,
- IN EFI_HANDLE ImageHandle,
- IN EFI_GUID *ServiceBindingGuid,
- OUT EFI_HANDLE *ChildHandle
- );
-
-EFI_STATUS
-NetLibDestroyServiceChild (
- IN EFI_HANDLE ControllerHandle,
- IN EFI_HANDLE ImageHandle,
- IN EFI_GUID *ServiceBindingGuid,
- IN EFI_HANDLE ChildHandle
- );
-
-EFI_STATUS
-NetLibGetMacString (
- IN EFI_HANDLE SnpHandle,
- IN EFI_HANDLE ImageHandle,
- IN OUT CHAR16 **MacString
- );
-
-EFI_HANDLE
-NetLibGetNicHandle (
- IN EFI_HANDLE Controller,
- IN EFI_GUID *ProtocolGuid
- );
-
-typedef
-EFI_STATUS
-(EFIAPI *NET_LIB_DRIVER_UNLOAD) (
- IN EFI_HANDLE ImageHandle
- );
-
-EFI_STATUS
-EFIAPI
-NetLibDefaultUnload (
- IN EFI_HANDLE ImageHandle
- );
-
-EFI_STATUS
-NetLibInstallAllDriverProtocolsWithUnload (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable,
- IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
- IN EFI_HANDLE DriverBindingHandle,
- IN EFI_COMPONENT_NAME_PROTOCOL *ComponentName, OPTIONAL
- IN EFI_DRIVER_CONFIGURATION_PROTOCOL *DriverConfiguration, OPTIONAL
- IN EFI_DRIVER_DIAGNOSTICS_PROTOCOL *DriverDiagnostics, OPTIONAL
- IN NET_LIB_DRIVER_UNLOAD CustomizedUnload
- );
-
-EFI_STATUS
-NetLibInstallAllDriverProtocols (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable,
- IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
- IN EFI_HANDLE DriverBindingHandle,
- IN EFI_COMPONENT_NAME_PROTOCOL *ComponentName, OPTIONAL
- IN EFI_DRIVER_CONFIGURATION_PROTOCOL *DriverConfiguration, OPTIONAL
- IN EFI_DRIVER_DIAGNOSTICS_PROTOCOL *DriverDiagnostics OPTIONAL
- );
-\r
-enum {
- //
- //Various signatures
- //
- NET_BUF_SIGNATURE = EFI_SIGNATURE_32 ('n', 'b', 'u', 'f'),
- NET_VECTOR_SIGNATURE = EFI_SIGNATURE_32 ('n', 'v', 'e', 'c'),
- NET_QUE_SIGNATURE = EFI_SIGNATURE_32 ('n', 'b', 'q', 'u'),
-
-
- NET_PROTO_DATA = 64, // Opaque buffer for protocols
- NET_BUF_HEAD = 1, // Trim or allocate space from head
- NET_BUF_TAIL = 0, // Trim or allocate space from tail
- NET_VECTOR_OWN_FIRST = 0x01, // We allocated the 1st block in the vector
-};
-
-#define NET_CHECK_SIGNATURE(PData, SIGNATURE) \
- ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))
-
-#define NET_SWAP_SHORT(Value) \
- ((((Value) & 0xff) << 8) | (((Value) >> 8) & 0xff))
-
-//
-// Single memory block in the vector.
-//
-typedef struct {
- UINT32 Len; // The block's length
- UINT8 *Bulk; // The block's Data
-} NET_BLOCK;
-
-typedef VOID (*NET_VECTOR_EXT_FREE) (VOID *Arg);
-
-//
-//NET_VECTOR contains several blocks to hold all packet's
-//fragments and other house-keeping stuff for sharing. It
-//doesn't specify the where actual packet fragment begins.
-//
-typedef struct {
- UINT32 Signature;
- INTN RefCnt; // Reference count to share NET_VECTOR.
- NET_VECTOR_EXT_FREE Free; // external function to free NET_VECTOR
- VOID *Arg; // opeque argument to Free
- UINT32 Flag; // Flags, NET_VECTOR_OWN_FIRST
- UINT32 Len; // Total length of the assocated BLOCKs
-
- UINT32 BlockNum;
- NET_BLOCK Block[1];
-} NET_VECTOR;
-
-//
-//NET_BLOCK_OP operate on the NET_BLOCK, It specifies
-//where the actual fragment begins and where it ends
-//
-typedef struct {
- UINT8 *BlockHead; // Block's head, or the smallest valid Head
- UINT8 *BlockTail; // Block's tail. BlockTail-BlockHead=block length
- UINT8 *Head; // 1st byte of the data in the block
- UINT8 *Tail; // Tail of the data in the block, Tail-Head=Size
- UINT32 Size; // The size of the data
-} NET_BLOCK_OP;
-
-
-//
-//NET_BUF is the buffer manage structure used by the
-//network stack. Every network packet may be fragmented,
-//and contains multiple fragments. The Vector points to
-//memory blocks used by the each fragment, and BlockOp
-//specifies where each fragment begins and ends.
-//
-//It also contains a opaque area for protocol to store
-//per-packet informations. Protocol must be caution not
-//to overwrite the members after that.
-//
-typedef struct {
- UINT32 Signature;
- INTN RefCnt;
- NET_LIST_ENTRY List; // The List this NET_BUF is on
-
- IP4_HEAD *Ip; // Network layer header, for fast access
- TCP_HEAD *Tcp; // Transport layer header, for fast access
- UINT8 ProtoData [NET_PROTO_DATA]; //Protocol specific data
-
- NET_VECTOR *Vector; // The vector containing the packet
-
- UINT32 BlockOpNum; // Total number of BlockOp in the buffer
- UINT32 TotalSize; // Total size of the actual packet
- NET_BLOCK_OP BlockOp[1]; // Specify the position of actual packet
-} NET_BUF;
-
-
-//
-//A queue of NET_BUFs, It is just a thin extension of
-//NET_BUF functions.
-//
-typedef struct {
- UINT32 Signature;
- INTN RefCnt;
- NET_LIST_ENTRY List; // The List this buffer queue is on
-
- NET_LIST_ENTRY BufList; // list of queued buffers
- UINT32 BufSize; // total length of DATA in the buffers
- UINT32 BufNum; // total number of buffers on the chain
-} NET_BUF_QUEUE;
-
-//
-// Pseudo header for TCP and UDP checksum
-//
-#pragma pack(1)
-typedef struct {
- IP4_ADDR SrcIp;
- IP4_ADDR DstIp;
- UINT8 Reserved;
- UINT8 Protocol;
- UINT16 Len;
-} NET_PSEUDO_HDR;
-#pragma pack()
-
-//
-// The fragment entry table used in network interfaces. This is
-// the same as NET_BLOCK now. Use two different to distinguish
-// the two in case that NET_BLOCK be enhanced later.
-//
-typedef struct {
- UINT32 Len;
- UINT8 *Bulk;
-} NET_FRAGMENT;
-
-#define NET_GET_REF(PData) ((PData)->RefCnt++)
-#define NET_PUT_REF(PData) ((PData)->RefCnt--)
-#define NETBUF_FROM_PROTODATA(Info) _CR((Info), NET_BUF, ProtoData)
-
-#define NET_BUF_SHARED(Buf) \
- (((Buf)->RefCnt > 1) || ((Buf)->Vector->RefCnt > 1))
-
-#define NET_VECTOR_SIZE(BlockNum) \
- (sizeof (NET_VECTOR) + ((BlockNum) - 1) * sizeof (NET_BLOCK))
-
-#define NET_BUF_SIZE(BlockOpNum) \
- (sizeof (NET_BUF) + ((BlockOpNum) - 1) * sizeof (NET_BLOCK_OP))
-
-#define NET_HEADSPACE(BlockOp) \
- (UINTN)((BlockOp)->Head - (BlockOp)->BlockHead)
-
-#define NET_TAILSPACE(BlockOp) \
- (UINTN)((BlockOp)->BlockTail - (BlockOp)->Tail)
-
-NET_BUF *
-NetbufAlloc (
- IN UINT32 Len
- );
-
-VOID
-NetbufFree (
- IN NET_BUF *Nbuf
- );
-
-
-UINT8 *
-NetbufGetByte (
- IN NET_BUF *Nbuf,
- IN UINT32 Offset,
- OUT UINT32 *Index OPTIONAL
- );
-
-NET_BUF *
-NetbufClone (
- IN NET_BUF *Nbuf
- );
-
-NET_BUF *
-NetbufDuplicate (
- IN NET_BUF *Nbuf,
- IN NET_BUF *Duplicate OPTIONAL,
- IN UINT32 HeadSpace
- );
-
-NET_BUF *
-NetbufGetFragment (
- IN NET_BUF *Nbuf,
- IN UINT32 Offset,
- IN UINT32 Len,
- IN UINT32 HeadSpace
- );
-
-VOID
-NetbufReserve (
- IN NET_BUF *Nbuf,
- IN UINT32 Len
- );
-
-UINT8 *
-NetbufAllocSpace (
- IN NET_BUF *Nbuf,
- IN UINT32 Len,
- IN BOOLEAN FromHead
- );
-
-UINT32
-NetbufTrim (
- IN NET_BUF *Nbuf,
- IN UINT32 Len,
- IN BOOLEAN FromHead
- );
-
-UINT32
-NetbufCopy (
- IN NET_BUF *Nbuf,
- IN UINT32 Offset,
- IN UINT32 Len,
- IN UINT8 *Dest
- );
-
-NET_BUF *
-NetbufFromExt (
- IN NET_FRAGMENT *ExtFragment,
- IN UINT32 ExtNum,
- IN UINT32 HeadSpace,
- IN UINT32 HeadLen,
- IN NET_VECTOR_EXT_FREE ExtFree,
- IN VOID *Arg OPTIONAL
- );
-
-EFI_STATUS
-NetbufBuildExt (
- IN NET_BUF *Nbuf,
- IN NET_FRAGMENT *ExtFragment,
- IN UINT32 *ExtNum
- );
-
-NET_BUF *
-NetbufFromBufList (
- IN NET_LIST_ENTRY *BufList,
- IN UINT32 HeadSpace,
- IN UINT32 HeaderLen,
- IN NET_VECTOR_EXT_FREE ExtFree,
- IN VOID *Arg OPTIONAL
- );
-
-VOID
-NetbufFreeList (
- IN NET_LIST_ENTRY *Head
- );
-
-VOID
-NetbufQueInit (
- IN NET_BUF_QUEUE *NbufQue
- );
-
-NET_BUF_QUEUE *
-NetbufQueAlloc (
- VOID
- );
-
-VOID
-NetbufQueFree (
- IN NET_BUF_QUEUE *NbufQue
- );
-
-NET_BUF *
-NetbufQueRemove (
- IN NET_BUF_QUEUE *NbufQue
- );
-
-VOID
-NetbufQueAppend (
- IN NET_BUF_QUEUE *NbufQue,
- IN NET_BUF *Nbuf
- );
-
-UINT32
-NetbufQueCopy (
- IN NET_BUF_QUEUE *NbufQue,
- IN UINT32 Offset,
- IN UINT32 Len,
- IN UINT8 *Dest
- );
-
-UINT32
-NetbufQueTrim (
- IN NET_BUF_QUEUE *NbufQue,
- IN UINT32 Len
- );
-
-VOID
-NetbufQueFlush (
- IN NET_BUF_QUEUE *NbufQue
- );
-
-UINT16
-NetblockChecksum (
- IN UINT8 *Bulk,
- IN UINT32 Len
- );
-
-UINT16
-NetAddChecksum (
- IN UINT16 Checksum1,
- IN UINT16 Checksum2
- );
-
-UINT16
-NetbufChecksum (
- IN NET_BUF *Nbuf
- );
-
-UINT16
-NetPseudoHeadChecksum (
- IN IP4_ADDR Src,
- IN IP4_ADDR Dst,
- IN UINT8 Proto,
- IN UINT16 Len
- );
-
+/** @file\r
+ This library is only intended to be used by UEFI network stack modules.\r
+ It provides basic functions for the UEFI network stack.\r
+\r
+Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at<BR>\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef _NET_LIB_H_\r
+#define _NET_LIB_H_\r
+\r
+#include <Protocol/Ip6.h>\r
+\r
+#include <Library/BaseLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+\r
+typedef UINT32 IP4_ADDR;\r
+typedef UINT32 TCP_SEQNO;\r
+typedef UINT16 TCP_PORTNO;\r
+\r
+\r
+#define NET_ETHER_ADDR_LEN 6\r
+#define NET_IFTYPE_ETHERNET 0x01\r
+\r
+#define NET_VLAN_TAG_LEN 4\r
+#define ETHER_TYPE_VLAN 0x8100\r
+\r
+#define EFI_IP_PROTO_UDP 0x11\r
+#define EFI_IP_PROTO_TCP 0x06\r
+#define EFI_IP_PROTO_ICMP 0x01\r
+#define IP4_PROTO_IGMP 0x02\r
+#define IP6_ICMP 58\r
+#define DNS_MAX_NAME_SIZE 255\r
+#define DNS_MAX_MESSAGE_SIZE 512\r
+\r
+//\r
+// The address classification\r
+//\r
+#define IP4_ADDR_CLASSA 1 // Deprecated\r
+#define IP4_ADDR_CLASSB 2 // Deprecated\r
+#define IP4_ADDR_CLASSC 3 // Deprecated\r
+#define IP4_ADDR_CLASSD 4\r
+#define IP4_ADDR_CLASSE 5\r
+\r
+#define IP4_MASK_NUM 33\r
+#define IP6_PREFIX_NUM 129\r
+\r
+#define IP4_MASK_MAX 32 \r
+#define IP6_PREFIX_MAX 128\r
+\r
+#define IP6_HOP_BY_HOP 0\r
+#define IP6_DESTINATION 60\r
+#define IP6_ROUTING 43\r
+#define IP6_FRAGMENT 44\r
+#define IP6_AH 51\r
+#define IP6_ESP 50\r
+#define IP6_NO_NEXT_HEADER 59\r
+\r
+#define IP_VERSION_4 4\r
+#define IP_VERSION_6 6\r
+\r
+#define IP6_PREFIX_LENGTH 64\r
+\r
+//\r
+// DNS QTYPE values\r
+//\r
+#define DNS_TYPE_A 1\r
+#define DNS_TYPE_NS 2\r
+#define DNS_TYPE_CNAME 5\r
+#define DNS_TYPE_SOA 6\r
+#define DNS_TYPE_WKS 11\r
+#define DNS_TYPE_PTR 12\r
+#define DNS_TYPE_HINFO 13\r
+#define DNS_TYPE_MINFO 14\r
+#define DNS_TYPE_MX 15\r
+#define DNS_TYPE_TXT 16\r
+#define DNS_TYPE_AAAA 28\r
+#define DNS_TYPE_SRV_RR 33\r
+#define DNS_TYPE_AXFR 252\r
+#define DNS_TYPE_MAILB 253\r
+#define DNS_TYPE_ANY 255\r
+\r
+//\r
+// DNS QCLASS values\r
+//\r
+#define DNS_CLASS_INET 1\r
+#define DNS_CLASS_CH 3\r
+#define DNS_CLASS_HS 4\r
+#define DNS_CLASS_ANY 255\r
+\r
+#pragma pack(1)\r
+\r
+//\r
+// Ethernet head definition\r
+//\r
+typedef struct {\r
+ UINT8 DstMac [NET_ETHER_ADDR_LEN];\r
+ UINT8 SrcMac [NET_ETHER_ADDR_LEN];\r
+ UINT16 EtherType;\r
+} ETHER_HEAD;\r
+\r
+//\r
+// 802.1Q VLAN Tag Control Information\r
+//\r
+typedef union {\r
+ struct {\r
+ UINT16 Vid : 12; // Unique VLAN identifier (0 to 4094)\r
+ UINT16 Cfi : 1; // Canonical Format Indicator\r
+ UINT16 Priority : 3; // 802.1Q priority level (0 to 7)\r
+ } Bits;\r
+ UINT16 Uint16;\r
+} VLAN_TCI;\r
+\r
+#define VLAN_TCI_CFI_CANONICAL_MAC 0\r
+#define VLAN_TCI_CFI_NON_CANONICAL_MAC 1\r
+\r
+//\r
+// The EFI_IP4_HEADER is hard to use because the source and\r
+// destination address are defined as EFI_IPv4_ADDRESS, which\r
+// is a structure. Two structures can't be compared or masked\r
+// directly. This is why there is an internal representation.\r
+//\r
+typedef struct {\r
+ UINT8 HeadLen : 4;\r
+ UINT8 Ver : 4;\r
+ UINT8 Tos;\r
+ UINT16 TotalLen;\r
+ UINT16 Id;\r
+ UINT16 Fragment;\r
+ UINT8 Ttl;\r
+ UINT8 Protocol;\r
+ UINT16 Checksum;\r
+ IP4_ADDR Src;\r
+ IP4_ADDR Dst;\r
+} IP4_HEAD;\r
+\r
+\r
+//\r
+// ICMP head definition. Each ICMP message is categorized as either an error\r
+// message or query message. Two message types have their own head format.\r
+//\r
+typedef struct {\r
+ UINT8 Type;\r
+ UINT8 Code;\r
+ UINT16 Checksum;\r
+} IP4_ICMP_HEAD;\r
+\r
+typedef struct {\r
+ IP4_ICMP_HEAD Head;\r
+ UINT32 Fourth; // 4th filed of the head, it depends on Type.\r
+ IP4_HEAD IpHead;\r
+} IP4_ICMP_ERROR_HEAD;\r
+\r
+typedef struct {\r
+ IP4_ICMP_HEAD Head;\r
+ UINT16 Id;\r
+ UINT16 Seq;\r
+} IP4_ICMP_QUERY_HEAD;\r
+\r
+typedef struct {\r
+ UINT8 Type;\r
+ UINT8 Code;\r
+ UINT16 Checksum;\r
+} IP6_ICMP_HEAD;\r
+\r
+typedef struct {\r
+ IP6_ICMP_HEAD Head;\r
+ UINT32 Fourth;\r
+ EFI_IP6_HEADER IpHead;\r
+} IP6_ICMP_ERROR_HEAD;\r
+\r
+typedef struct {\r
+ IP6_ICMP_HEAD Head;\r
+ UINT32 Fourth;\r
+} IP6_ICMP_INFORMATION_HEAD;\r
+\r
+//\r
+// UDP header definition\r
+//\r
+typedef struct {\r
+ UINT16 SrcPort;\r
+ UINT16 DstPort;\r
+ UINT16 Length;\r
+ UINT16 Checksum;\r
+} EFI_UDP_HEADER;\r
+\r
+//\r
+// TCP header definition\r
+//\r
+typedef struct {\r
+ TCP_PORTNO SrcPort;\r
+ TCP_PORTNO DstPort;\r
+ TCP_SEQNO Seq;\r
+ TCP_SEQNO Ack;\r
+ UINT8 Res : 4;\r
+ UINT8 HeadLen : 4;\r
+ UINT8 Flag;\r
+ UINT16 Wnd;\r
+ UINT16 Checksum;\r
+ UINT16 Urg;\r
+} TCP_HEAD;\r
+\r
+#pragma pack()\r
+\r
+#define NET_MAC_EQUAL(pMac1, pMac2, Len) \\r
+ (CompareMem ((pMac1), (pMac2), Len) == 0)\r
+\r
+#define NET_MAC_IS_MULTICAST(Mac, BMac, Len) \\r
+ (((*((UINT8 *) Mac) & 0x01) == 0x01) && (!NET_MAC_EQUAL (Mac, BMac, Len)))\r
+\r
+#define NTOHL(x) SwapBytes32 (x)\r
+\r
+#define HTONL(x) NTOHL(x)\r
+\r
+#define NTOHS(x) SwapBytes16 (x)\r
+\r
+#define HTONS(x) NTOHS(x)\r
+#define NTOHLL(x) SwapBytes64 (x)\r
+#define HTONLL(x) NTOHLL(x)\r
+#define NTOHLLL(x) Ip6Swap128 (x)\r
+#define HTONLLL(x) NTOHLLL(x)\r
+\r
+//\r
+// Test the IP's attribute, All the IPs are in host byte order.\r
+//\r
+#define IP4_IS_MULTICAST(Ip) (((Ip) & 0xF0000000) == 0xE0000000)\r
+#define IP4_IS_UNSPECIFIED(Ip) ((Ip) == 0)\r
+#define IP4_IS_LOCAL_BROADCAST(Ip) ((Ip) == 0xFFFFFFFF)\r
+#define IP4_NET_EQUAL(Ip1, Ip2, NetMask) (((Ip1) & (NetMask)) == ((Ip2) & (NetMask)))\r
+#define IP4_IS_VALID_NETMASK(Ip) (NetGetMaskLength (Ip) != (IP4_MASK_MAX + 1))\r
+\r
+#define IP6_IS_MULTICAST(Ip6) (((Ip6)->Addr[0]) == 0xFF)\r
+\r
+//\r
+// Convert the EFI_IP4_ADDRESS to plain UINT32 IP4 address.\r
+//\r
+#define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))\r
+#define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))\r
+#define EFI_IP4_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv4_ADDRESS)) == 0)\r
+\r
+#define EFI_IP6_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv6_ADDRESS)) == 0)\r
+\r
+#define IP4_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv4_ADDRESS)))\r
+#define IP6_COPY_ADDRESS(Dest, Src) (CopyMem ((Dest), (Src), sizeof (EFI_IPv6_ADDRESS)))\r
+#define IP6_COPY_LINK_ADDRESS(Mac1, Mac2) (CopyMem ((Mac1), (Mac2), sizeof (EFI_MAC_ADDRESS)))\r
+\r
//\r
// The debug level definition. This value is also used as the\r
-// syslog's servity level. Don't change it.\r
+// syslog's severity level. Don't change it.\r
//\r
-enum {\r
- NETDEBUG_LEVEL_TRACE = 5,\r
- NETDEBUG_LEVEL_WARNING = 4,\r
- NETDEBUG_LEVEL_ERROR = 3,\r
-};\r
+#define NETDEBUG_LEVEL_TRACE 5\r
+#define NETDEBUG_LEVEL_WARNING 4\r
+#define NETDEBUG_LEVEL_ERROR 3\r
\r
-#ifdef EFI_NETWORK_STACK_DEBUG\r
+//\r
+// Network debug message is sent out as syslog packet.\r
+//\r
+#define NET_SYSLOG_FACILITY 16 // Syslog local facility local use\r
+#define NET_SYSLOG_PACKET_LEN 512\r
+#define NET_SYSLOG_TX_TIMEOUT (500 * 1000 * 10) // 500ms\r
+#define NET_DEBUG_MSG_LEN 470 // 512 - (ether+ip4+udp4 head length)\r
\r
//\r
// The debug output expects the ASCII format string, Use %a to print ASCII\r
NetDebugASPrint PrintArg \\r
)\r
\r
-#else\r
-#define NET_DEBUG_TRACE(Module, PrintString)\r
-#define NET_DEBUG_WARNING(Module, PrintString)\r
-#define NET_DEBUG_ERROR(Module, PrintString)\r
-#endif\r
+/**\r
+ Allocate a buffer, then format the message to it. This is a\r
+ help function for the NET_DEBUG_XXX macros. The PrintArg of\r
+ these macros treats the variable length print parameters as a\r
+ single parameter, and pass it to the NetDebugASPrint. For\r
+ example, NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name))\r
+ if extracted to:\r
+\r
+ NetDebugOutput (\r
+ NETDEBUG_LEVEL_TRACE,\r
+ "Tcp",\r
+ __FILE__,\r
+ __LINE__,\r
+ NetDebugASPrint ("State transit to %a\n", Name)\r
+ )\r
\r
-UINT8 *\r
+ @param Format The ASCII format string.\r
+ @param ... The variable length parameter whose format is determined\r
+ by the Format string.\r
+\r
+ @return The buffer containing the formatted message,\r
+ or NULL if memory allocation failed.\r
+\r
+**/\r
+CHAR8 *\r
+EFIAPI\r
NetDebugASPrint (\r
- UINT8 *Format,\r
+ IN CHAR8 *Format,\r
...\r
);\r
\r
+/**\r
+ Builds an UDP4 syslog packet and send it using SNP.\r
+\r
+ This function will locate a instance of SNP then send the message through it.\r
+ Because it isn't open the SNP BY_DRIVER, apply caution when using it.\r
+\r
+ @param Level The severity level of the message.\r
+ @param Module The Module that generates the log.\r
+ @param File The file that contains the log.\r
+ @param Line The exact line that contains the log.\r
+ @param Message The user message to log.\r
+\r
+ @retval EFI_INVALID_PARAMETER Any input parameter is invalid.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the packet\r
+ @retval EFI_SUCCESS The log is discard because that it is more verbose\r
+ than the mNetDebugLevelMax. Or, it has been sent out.\r
+**/\r
EFI_STATUS\r
+EFIAPI\r
NetDebugOutput (\r
- UINT32 Level,\r
- UINT8 *Module,\r
- UINT8 *File,\r
- UINT32 Line,\r
- UINT8 *Message\r
+ IN UINT32 Level,\r
+ IN UINT8 *Module,\r
+ IN UINT8 *File,\r
+ IN UINT32 Line,\r
+ IN UINT8 *Message\r
+ );\r
+\r
+\r
+/**\r
+ Return the length of the mask.\r
+\r
+ Return the length of the mask. Valid values are 0 to 32.\r
+ If the mask is invalid, return the invalid length 33, which is IP4_MASK_NUM.\r
+ NetMask is in the host byte order.\r
+\r
+ @param[in] NetMask The netmask to get the length from.\r
+\r
+ @return The length of the netmask, or IP4_MASK_NUM (33) if the mask is invalid.\r
+\r
+**/\r
+INTN\r
+EFIAPI\r
+NetGetMaskLength (\r
+ IN IP4_ADDR NetMask\r
+ );\r
+\r
+/**\r
+ Return the class of the IP address, such as class A, B, C.\r
+ Addr is in host byte order.\r
+\r
+ [ATTENTION]\r
+ Classful addressing (IP class A/B/C) has been deprecated according to RFC4632.\r
+ Caller of this function could only check the returned value against\r
+ IP4_ADDR_CLASSD (multicast) or IP4_ADDR_CLASSE (reserved) now.\r
+\r
+ The address of class A starts with 0.\r
+ If the address belong to class A, return IP4_ADDR_CLASSA.\r
+ The address of class B starts with 10.\r
+ If the address belong to class B, return IP4_ADDR_CLASSB.\r
+ The address of class C starts with 110.\r
+ If the address belong to class C, return IP4_ADDR_CLASSC.\r
+ The address of class D starts with 1110.\r
+ If the address belong to class D, return IP4_ADDR_CLASSD.\r
+ The address of class E starts with 1111.\r
+ If the address belong to class E, return IP4_ADDR_CLASSE.\r
+\r
+\r
+ @param[in] Addr The address to get the class from.\r
+\r
+ @return IP address class, such as IP4_ADDR_CLASSA.\r
+\r
+**/\r
+INTN\r
+EFIAPI\r
+NetGetIpClass (\r
+ IN IP4_ADDR Addr\r
+ );\r
+\r
+/**\r
+ Check whether the IP is a valid unicast address according to\r
+ the netmask. \r
+\r
+ ASSERT if NetMask is zero.\r
+ \r
+ If all bits of the host address of IP are 0 or 1, IP is also not a valid unicast address,\r
+ except when the originator is one of the endpoints of a point-to-point link with a 31-bit\r
+ mask (RFC3021).\r
+ \r
+ @param[in] Ip The IP to check against.\r
+ @param[in] NetMask The mask of the IP.\r
+\r
+ @return TRUE if IP is a valid unicast address on the network, otherwise FALSE.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIp4IsUnicast (\r
+ IN IP4_ADDR Ip,\r
+ IN IP4_ADDR NetMask\r
+ );\r
+\r
+/**\r
+ Check whether the incoming IPv6 address is a valid unicast address.\r
+\r
+ If the address is a multicast address has binary 0xFF at the start, it is not\r
+ a valid unicast address. If the address is unspecified ::, it is not a valid\r
+ unicast address to be assigned to any node. If the address is loopback address\r
+ ::1, it is also not a valid unicast address to be assigned to any physical\r
+ interface.\r
+\r
+ @param[in] Ip6 The IPv6 address to check against.\r
+\r
+ @return TRUE if Ip6 is a valid unicast address on the network, otherwise FALSE.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIp6IsValidUnicast (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
+ );\r
+\r
+\r
+/**\r
+ Check whether the incoming Ipv6 address is the unspecified address or not.\r
+\r
+ @param[in] Ip6 - Ip6 address, in network order.\r
+\r
+ @retval TRUE - Yes, incoming Ipv6 address is the unspecified address.\r
+ @retval FALSE - The incoming Ipv6 address is not the unspecified address\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIp6IsUnspecifiedAddr (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
+ );\r
+\r
+/**\r
+ Check whether the incoming Ipv6 address is a link-local address.\r
+\r
+ @param[in] Ip6 - Ip6 address, in network order.\r
+\r
+ @retval TRUE - The incoming Ipv6 address is a link-local address.\r
+ @retval FALSE - The incoming Ipv6 address is not a link-local address.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIp6IsLinkLocalAddr (\r
+ IN EFI_IPv6_ADDRESS *Ip6\r
+ );\r
+\r
+/**\r
+ Check whether the Ipv6 address1 and address2 are on the connected network.\r
+\r
+ @param[in] Ip1 - Ip6 address1, in network order.\r
+ @param[in] Ip2 - Ip6 address2, in network order.\r
+ @param[in] PrefixLength - The prefix length of the checking net.\r
+\r
+ @retval TRUE - Yes, the Ipv6 address1 and address2 are connected.\r
+ @retval FALSE - No the Ipv6 address1 and address2 are not connected.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIp6IsNetEqual (\r
+ EFI_IPv6_ADDRESS *Ip1,\r
+ EFI_IPv6_ADDRESS *Ip2,\r
+ UINT8 PrefixLength\r
+ );\r
+\r
+/**\r
+ Switches the endianess of an IPv6 address.\r
+\r
+ This function swaps the bytes in a 128-bit IPv6 address to switch the value\r
+ from little endian to big endian or vice versa. The byte swapped value is\r
+ returned.\r
+\r
+ @param Ip6 Points to an IPv6 address.\r
+\r
+ @return The byte swapped IPv6 address.\r
+\r
+**/\r
+EFI_IPv6_ADDRESS *\r
+EFIAPI\r
+Ip6Swap128 (\r
+ EFI_IPv6_ADDRESS *Ip6\r
+ );\r
+\r
+extern IP4_ADDR gIp4AllMasks[IP4_MASK_NUM];\r
+\r
+\r
+extern EFI_IPv4_ADDRESS mZeroIp4Addr;\r
+\r
+#define NET_IS_DIGIT(Ch) (('0' <= (Ch)) && ((Ch) <= '9'))\r
+#define NET_IS_HEX(Ch) ((('0' <= (Ch)) && ((Ch) <= '9')) || (('A' <= (Ch)) && ((Ch) <= 'F')) || (('a' <= (Ch)) && ((Ch) <= 'f')))\r
+#define NET_ROUNDUP(size, unit) (((size) + (unit) - 1) & (~((unit) - 1)))\r
+#define NET_IS_LOWER_CASE_CHAR(Ch) (('a' <= (Ch)) && ((Ch) <= 'z'))\r
+#define NET_IS_UPPER_CASE_CHAR(Ch) (('A' <= (Ch)) && ((Ch) <= 'Z'))\r
+\r
+#define TICKS_PER_MS 10000U\r
+#define TICKS_PER_SECOND 10000000U\r
+\r
+#define NET_RANDOM(Seed) ((UINT32) ((UINT32) (Seed) * 1103515245UL + 12345) % 4294967295UL)\r
+\r
+/**\r
+ Extract a UINT32 from a byte stream.\r
+\r
+ This function copies a UINT32 from a byte stream, and then converts it from Network\r
+ byte order to host byte order. Use this function to avoid alignment error.\r
+\r
+ @param[in] Buf The buffer to extract the UINT32.\r
+\r
+ @return The UINT32 extracted.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetGetUint32 (\r
+ IN UINT8 *Buf\r
+ );\r
+\r
+/**\r
+ Puts a UINT32 into the byte stream in network byte order.\r
+\r
+ Converts a UINT32 from host byte order to network byte order, then copies it to the\r
+ byte stream.\r
+\r
+ @param[in, out] Buf The buffer in which to put the UINT32.\r
+ @param[in] Data The data to be converted and put into the byte stream.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetPutUint32 (\r
+ IN OUT UINT8 *Buf,\r
+ IN UINT32 Data\r
+ );\r
+\r
+/**\r
+ Initialize a random seed using current time and monotonic count.\r
+\r
+ Get current time and monotonic count first. Then initialize a random seed \r
+ based on some basic mathematics operation on the hour, day, minute, second,\r
+ nanosecond and year of the current time and the monotonic count value.\r
+\r
+ @return The random seed initialized with current time.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetRandomInitSeed (\r
+ VOID\r
+ );\r
+\r
+\r
+#define NET_LIST_USER_STRUCT(Entry, Type, Field) \\r
+ BASE_CR(Entry, Type, Field)\r
+\r
+#define NET_LIST_USER_STRUCT_S(Entry, Type, Field, Sig) \\r
+ CR(Entry, Type, Field, Sig)\r
+\r
+//\r
+// Iterate through the double linked list. It is NOT delete safe\r
+//\r
+#define NET_LIST_FOR_EACH(Entry, ListHead) \\r
+ for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r
+\r
+//\r
+// Iterate through the double linked list. This is delete-safe.\r
+// Don't touch NextEntry. Also, don't use this macro if list\r
+// entries other than the Entry may be deleted when processing\r
+// the current Entry.\r
+//\r
+#define NET_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r
+ for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink; \\r
+ Entry != (ListHead); \\r
+ Entry = NextEntry, NextEntry = Entry->ForwardLink \\r
+ )\r
+\r
+//\r
+// Make sure the list isn't empty before getting the first/last record.\r
+//\r
+#define NET_LIST_HEAD(ListHead, Type, Field) \\r
+ NET_LIST_USER_STRUCT((ListHead)->ForwardLink, Type, Field)\r
+\r
+#define NET_LIST_TAIL(ListHead, Type, Field) \\r
+ NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)\r
+\r
+\r
+/**\r
+ Remove the first node entry on the list, and return the removed node entry.\r
+\r
+ Removes the first node entry from a doubly linked list. It is up to the caller of\r
+ this function to release the memory used by the first node, if that is required. On\r
+ exit, the removed node is returned.\r
+\r
+ If Head is NULL, then ASSERT().\r
+ If Head was not initialized, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r
+ then ASSERT().\r
+\r
+ @param[in, out] Head The list header.\r
+\r
+ @return The first node entry that is removed from the list, NULL if the list is empty.\r
+\r
+**/\r
+LIST_ENTRY *\r
+EFIAPI\r
+NetListRemoveHead (\r
+ IN OUT LIST_ENTRY *Head\r
+ );\r
+\r
+/**\r
+ Remove the last node entry on the list and return the removed node entry.\r
+\r
+ Removes the last node entry from a doubly linked list. It is up to the caller of\r
+ this function to release the memory used by the first node, if that is required. On\r
+ exit, the removed node is returned.\r
+\r
+ If Head is NULL, then ASSERT().\r
+ If Head was not initialized, then ASSERT().\r
+ If PcdMaximumLinkedListLength is not zero, and the number of nodes in the\r
+ linked list including the head node is greater than or equal to PcdMaximumLinkedListLength,\r
+ then ASSERT().\r
+\r
+ @param[in, out] Head The list head.\r
+\r
+ @return The last node entry that is removed from the list, NULL if the list is empty.\r
+\r
+**/\r
+LIST_ENTRY *\r
+EFIAPI\r
+NetListRemoveTail (\r
+ IN OUT LIST_ENTRY *Head\r
+ );\r
+\r
+/**\r
+ Insert a new node entry after a designated node entry of a doubly linked list.\r
+\r
+ Inserts a new node entry designated by NewEntry after the node entry designated by PrevEntry\r
+ of the doubly linked list.\r
+\r
+ @param[in, out] PrevEntry The entry after which to insert.\r
+ @param[in, out] NewEntry The new entry to insert.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetListInsertAfter (\r
+ IN OUT LIST_ENTRY *PrevEntry,\r
+ IN OUT LIST_ENTRY *NewEntry\r
+ );\r
+\r
+/**\r
+ Insert a new node entry before a designated node entry of a doubly linked list.\r
+\r
+ Inserts a new node entry designated by NewEntry before the node entry designated by PostEntry\r
+ of the doubly linked list.\r
+\r
+ @param[in, out] PostEntry The entry to insert before.\r
+ @param[in, out] NewEntry The new entry to insert.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetListInsertBefore (\r
+ IN OUT LIST_ENTRY *PostEntry,\r
+ IN OUT LIST_ENTRY *NewEntry\r
+ );\r
+\r
+/**\r
+ Callback function which provided by user to remove one node in NetDestroyLinkList process.\r
+ \r
+ @param[in] Entry The entry to be removed.\r
+ @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r
+\r
+ @retval EFI_SUCCESS The entry has been removed successfully.\r
+ @retval Others Fail to remove the entry.\r
+\r
+**/\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *NET_DESTROY_LINK_LIST_CALLBACK) (\r
+ IN LIST_ENTRY *Entry,\r
+ IN VOID *Context OPTIONAL\r
+ );\r
+\r
+/**\r
+ Safe destroy nodes in a linked list, and return the length of the list after all possible operations finished.\r
+\r
+ Destroy network children list by list traversals is not safe due to graph dependencies between nodes.\r
+ This function performs a safe traversal to destroy these nodes by checking to see if the node being destroyed\r
+ has been removed from the list or not.\r
+ If it has been removed, then restart the traversal from the head.\r
+ If it hasn't been removed, then continue with the next node directly.\r
+ This function will end the iterate and return the CallBack's last return value if error happens,\r
+ or retrun EFI_SUCCESS if 2 complete passes are made with no changes in the number of children in the list. \r
+\r
+ @param[in] List The head of the list.\r
+ @param[in] CallBack Pointer to the callback function to destroy one node in the list.\r
+ @param[in] Context Pointer to the callback function's context: corresponds to the\r
+ parameter Context in NET_DESTROY_LINK_LIST_CALLBACK.\r
+ @param[out] ListLength The length of the link list if the function returns successfully.\r
+\r
+ @retval EFI_SUCCESS Two complete passes are made with no changes in the number of children.\r
+ @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r
+ @retval Others Return the CallBack's last return value.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetDestroyLinkList (\r
+ IN LIST_ENTRY *List,\r
+ IN NET_DESTROY_LINK_LIST_CALLBACK CallBack,\r
+ IN VOID *Context, OPTIONAL\r
+ OUT UINTN *ListLength OPTIONAL\r
+ );\r
+\r
+/**\r
+ This function checks the input Handle to see if it's one of these handles in ChildHandleBuffer.\r
+\r
+ @param[in] Handle Handle to be checked.\r
+ @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer.\r
+ @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
+ if NumberOfChildren is 0.\r
+\r
+ @retval TRUE Found the input Handle in ChildHandleBuffer.\r
+ @retval FALSE Can't find the input Handle in ChildHandleBuffer.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetIsInHandleBuffer (\r
+ IN EFI_HANDLE Handle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
);\r
\r
//\r
-// Network debug message is sent out as syslog.\r
+// Object container: EFI network stack spec defines various kinds of\r
+// tokens. The drivers can share code to manage those objects.\r
//\r
-enum {\r
- NET_SYSLOG_FACILITY = 16, // Syslog local facility local use\r
- NET_SYSLOG_PACKET_LEN = 512,\r
- NET_DEBUG_MSG_LEN = 470, // 512 - (ether+ip+udp head length)\r
- NET_SYSLOG_TX_TIMEOUT = 500 *1000 *10, // 500ms\r
-};
-#endif
+typedef struct {\r
+ LIST_ENTRY Link;\r
+ VOID *Key;\r
+ VOID *Value;\r
+} NET_MAP_ITEM;\r
+\r
+typedef struct {\r
+ LIST_ENTRY Used;\r
+ LIST_ENTRY Recycled;\r
+ UINTN Count;\r
+} NET_MAP;\r
+\r
+#define NET_MAP_INCREAMENT 64\r
+\r
+/**\r
+ Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.\r
+\r
+ Initialize the forward and backward links of two head nodes donated by Map->Used\r
+ and Map->Recycled of two doubly linked lists.\r
+ Initializes the count of the <Key, Value> pairs in the netmap to zero.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If the address of Map->Used is NULL, then ASSERT().\r
+ If the address of Map->Recycled is NULl, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to initialize.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetMapInit (\r
+ IN OUT NET_MAP *Map\r
+ );\r
+\r
+/**\r
+ To clean up the netmap, that is, release allocated memories.\r
+\r
+ Removes all nodes of the Used doubly linked list and frees memory of all related netmap items.\r
+ Removes all nodes of the Recycled doubly linked list and free memory of all related netmap items.\r
+ The number of the <Key, Value> pairs in the netmap is set to zero.\r
+\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to clean up.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetMapClean (\r
+ IN OUT NET_MAP *Map\r
+ );\r
+\r
+/**\r
+ Test whether the netmap is empty and return true if it is.\r
+\r
+ If the number of the <Key, Value> pairs in the netmap is zero, return TRUE.\r
+\r
+ If Map is NULL, then ASSERT().\r
+\r
+\r
+ @param[in] Map The net map to test.\r
+\r
+ @return TRUE if the netmap is empty, otherwise FALSE.\r
+\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+NetMapIsEmpty (\r
+ IN NET_MAP *Map\r
+ );\r
+\r
+/**\r
+ Return the number of the <Key, Value> pairs in the netmap.\r
+\r
+ @param[in] Map The netmap to get the entry number.\r
+\r
+ @return The entry number in the netmap.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+NetMapGetCount (\r
+ IN NET_MAP *Map\r
+ );\r
+\r
+/**\r
+ Allocate an item to save the <Key, Value> pair to the head of the netmap.\r
+\r
+ Allocate an item to save the <Key, Value> pair and add corresponding node entry\r
+ to the beginning of the Used doubly linked list. The number of the <Key, Value>\r
+ pairs in the netmap increase by 1.\r
+\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to insert into.\r
+ @param[in] Key The user's key.\r
+ @param[in] Value The user's value for the key.\r
+\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r
+ @retval EFI_SUCCESS The item is inserted to the head.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetMapInsertHead (\r
+ IN OUT NET_MAP *Map,\r
+ IN VOID *Key,\r
+ IN VOID *Value OPTIONAL\r
+ );\r
+\r
+/**\r
+ Allocate an item to save the <Key, Value> pair to the tail of the netmap.\r
+\r
+ Allocate an item to save the <Key, Value> pair and add corresponding node entry\r
+ to the tail of the Used doubly linked list. The number of the <Key, Value>\r
+ pairs in the netmap increase by 1.\r
+\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to insert into.\r
+ @param[in] Key The user's key.\r
+ @param[in] Value The user's value for the key.\r
+\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item.\r
+ @retval EFI_SUCCESS The item is inserted to the tail.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetMapInsertTail (\r
+ IN OUT NET_MAP *Map,\r
+ IN VOID *Key,\r
+ IN VOID *Value OPTIONAL\r
+ );\r
+\r
+/**\r
+ Finds the key in the netmap and returns the point to the item containing the Key.\r
+\r
+ Iterate the Used doubly linked list of the netmap to get every item. Compare the key of every\r
+ item with the key to search. It returns the point to the item contains the Key if found.\r
+\r
+ If Map is NULL, then ASSERT().\r
+\r
+ @param[in] Map The netmap to search within.\r
+ @param[in] Key The key to search.\r
+\r
+ @return The point to the item contains the Key, or NULL if Key isn't in the map.\r
+\r
+**/\r
+NET_MAP_ITEM *\r
+EFIAPI\r
+NetMapFindKey (\r
+ IN NET_MAP *Map,\r
+ IN VOID *Key\r
+ );\r
+\r
+/**\r
+ Remove the node entry of the item from the netmap and return the key of the removed item.\r
+\r
+ Remove the node entry of the item from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry of the item to the Recycled doubly linked list of the netmap. If Value is not NULL,\r
+ Value will point to the value of the item. It returns the key of the removed item.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If Item is NULL, then ASSERT().\r
+ if item in not in the netmap, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to remove the item from.\r
+ @param[in, out] Item The item to remove.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the removed item.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+NetMapRemoveItem (\r
+ IN OUT NET_MAP *Map,\r
+ IN OUT NET_MAP_ITEM *Item,\r
+ OUT VOID **Value OPTIONAL\r
+ );\r
+\r
+/**\r
+ Remove the first node entry on the netmap and return the key of the removed item.\r
+\r
+ Remove the first node entry from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r
+ parameter Value will point to the value of the item. It returns the key of the removed item.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If the Used doubly linked list is empty, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to remove the head from.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the item removed.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+NetMapRemoveHead (\r
+ IN OUT NET_MAP *Map,\r
+ OUT VOID **Value OPTIONAL\r
+ );\r
+\r
+/**\r
+ Remove the last node entry on the netmap and return the key of the removed item.\r
+\r
+ Remove the last node entry from the Used doubly linked list of the netmap.\r
+ The number of the <Key, Value> pairs in the netmap decrease by 1. Then add the node\r
+ entry to the Recycled doubly linked list of the netmap. If parameter Value is not NULL,\r
+ parameter Value will point to the value of the item. It returns the key of the removed item.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If the Used doubly linked list is empty, then ASSERT().\r
+\r
+ @param[in, out] Map The netmap to remove the tail from.\r
+ @param[out] Value The variable to receive the value if not NULL.\r
+\r
+ @return The key of the item removed.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+NetMapRemoveTail (\r
+ IN OUT NET_MAP *Map,\r
+ OUT VOID **Value OPTIONAL\r
+ );\r
+\r
+typedef\r
+EFI_STATUS\r
+(EFIAPI *NET_MAP_CALLBACK) (\r
+ IN NET_MAP *Map,\r
+ IN NET_MAP_ITEM *Item,\r
+ IN VOID *Arg\r
+ );\r
+\r
+/**\r
+ Iterate through the netmap and call CallBack for each item.\r
+\r
+ It will continue the traverse if CallBack returns EFI_SUCCESS, otherwise, break\r
+ from the loop. It returns the CallBack's last return value. This function is\r
+ delete safe for the current item.\r
+\r
+ If Map is NULL, then ASSERT().\r
+ If CallBack is NULL, then ASSERT().\r
+\r
+ @param[in] Map The Map to iterate through.\r
+ @param[in] CallBack The callback function to call for each item.\r
+ @param[in] Arg The opaque parameter to the callback.\r
+\r
+ @retval EFI_SUCCESS There is no item in the netmap, or CallBack for each item\r
+ returns EFI_SUCCESS.\r
+ @retval Others It returns the CallBack's last return value.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetMapIterate (\r
+ IN NET_MAP *Map,\r
+ IN NET_MAP_CALLBACK CallBack,\r
+ IN VOID *Arg OPTIONAL\r
+ );\r
+\r
+\r
+//\r
+// Helper functions to implement driver binding and service binding protocols.\r
+//\r
+/**\r
+ Create a child of the service that is identified by ServiceBindingGuid.\r
+\r
+ Get the ServiceBinding Protocol first, then use it to create a child.\r
+\r
+ If ServiceBindingGuid is NULL, then ASSERT().\r
+ If ChildHandle is NULL, then ASSERT().\r
+\r
+ @param[in] Controller The controller which has the service installed.\r
+ @param[in] Image The image handle used to open service.\r
+ @param[in] ServiceBindingGuid The service's Guid.\r
+ @param[in, out] ChildHandle The handle to receive the created child.\r
+\r
+ @retval EFI_SUCCESS The child was successfully created.\r
+ @retval Others Failed to create the child.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibCreateServiceChild (\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_HANDLE Image,\r
+ IN EFI_GUID *ServiceBindingGuid,\r
+ IN OUT EFI_HANDLE *ChildHandle\r
+ );\r
+\r
+/**\r
+ Destroy a child of the service that is identified by ServiceBindingGuid.\r
+\r
+ Get the ServiceBinding Protocol first, then use it to destroy a child.\r
+\r
+ If ServiceBindingGuid is NULL, then ASSERT().\r
+\r
+ @param[in] Controller The controller which has the service installed.\r
+ @param[in] Image The image handle used to open service.\r
+ @param[in] ServiceBindingGuid The service's Guid.\r
+ @param[in] ChildHandle The child to destroy.\r
+\r
+ @retval EFI_SUCCESS The child was destroyed.\r
+ @retval Others Failed to destroy the child.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibDestroyServiceChild (\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_HANDLE Image,\r
+ IN EFI_GUID *ServiceBindingGuid,\r
+ IN EFI_HANDLE ChildHandle\r
+ );\r
+\r
+/**\r
+ Get handle with Simple Network Protocol installed on it.\r
+\r
+ There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r
+ If Simple Network Protocol is already installed on the ServiceHandle, the\r
+ ServiceHandle will be returned. If SNP is not installed on the ServiceHandle,\r
+ try to find its parent handle with SNP installed.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[out] Snp The pointer to store the address of the SNP instance.\r
+ This is an optional parameter that may be NULL.\r
+\r
+ @return The SNP handle, or NULL if not found.\r
+\r
+**/\r
+EFI_HANDLE\r
+EFIAPI\r
+NetLibGetSnpHandle (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT EFI_SIMPLE_NETWORK_PROTOCOL **Snp OPTIONAL\r
+ );\r
+\r
+/**\r
+ Retrieve VLAN ID of a VLAN device handle.\r
+\r
+ Search VLAN device path node in Device Path of specified ServiceHandle and\r
+ return its VLAN ID. If no VLAN device path node found, then this ServiceHandle\r
+ is not a VLAN device handle, and 0 will be returned.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+\r
+ @return VLAN ID of the device handle, or 0 if not a VLAN device.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetLibGetVlanId (\r
+ IN EFI_HANDLE ServiceHandle\r
+ );\r
+\r
+/**\r
+ Find VLAN device handle with specified VLAN ID.\r
+\r
+ The VLAN child device handle is created by VLAN Config Protocol on ControllerHandle.\r
+ This function will append VLAN device path node to the parent device path,\r
+ and then use LocateDevicePath() to find the correct VLAN device handle.\r
+\r
+ @param[in] ControllerHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[in] VlanId The configured VLAN ID for the VLAN device.\r
+\r
+ @return The VLAN device handle, or NULL if not found.\r
+\r
+**/\r
+EFI_HANDLE\r
+EFIAPI\r
+NetLibGetVlanHandle (\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN UINT16 VlanId\r
+ );\r
+\r
+/**\r
+ Get MAC address associated with the network service handle.\r
+\r
+ There should be MNP Service Binding Protocol installed on the input ServiceHandle.\r
+ If SNP is installed on the ServiceHandle or its parent handle, MAC address will\r
+ be retrieved from SNP. If no SNP found, try to get SNP mode data use MNP.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed on.\r
+ @param[out] MacAddress The pointer to store the returned MAC address.\r
+ @param[out] AddressSize The length of returned MAC address.\r
+\r
+ @retval EFI_SUCCESS MAC address was returned successfully.\r
+ @retval Others Failed to get SNP mode data.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibGetMacAddress (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT EFI_MAC_ADDRESS *MacAddress,\r
+ OUT UINTN *AddressSize\r
+ );\r
+\r
+/**\r
+ Convert MAC address of the NIC associated with specified Service Binding Handle\r
+ to a unicode string. Callers are responsible for freeing the string storage.\r
+\r
+ Locate simple network protocol associated with the Service Binding Handle and\r
+ get the mac address from SNP. Then convert the mac address into a unicode\r
+ string. It takes 2 unicode characters to represent a 1 byte binary buffer.\r
+ Plus one unicode character for the null-terminator.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocol is\r
+ installed.\r
+ @param[in] ImageHandle The image handle used to act as the agent handle to\r
+ get the simple network protocol. This parameter is\r
+ optional and may be NULL.\r
+ @param[out] MacString The pointer to store the address of the string\r
+ representation of the mac address.\r
+\r
+ @retval EFI_SUCCESS Converted the mac address a unicode string successfully.\r
+ @retval EFI_OUT_OF_RESOURCES There are not enough memory resources.\r
+ @retval Others Failed to open the simple network protocol.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibGetMacString (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ IN EFI_HANDLE ImageHandle, OPTIONAL\r
+ OUT CHAR16 **MacString\r
+ );\r
+\r
+/**\r
+ Detect media status for specified network device.\r
+\r
+ The underlying UNDI driver may or may not support reporting media status from\r
+ GET_STATUS command (PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED). This routine\r
+ will try to invoke Snp->GetStatus() to get the media status. If media is already\r
+ present, it returns directly. If media is not present, it will stop SNP and then\r
+ restart SNP to get the latest media status. This provides an opportunity to get \r
+ the correct media status for old UNDI driver, which doesn't support reporting \r
+ media status from GET_STATUS command.\r
+ Note: there are two limitations for the current algorithm:\r
+ 1) For UNDI with this capability, when the cable is not attached, there will\r
+ be an redundant Stop/Start() process.\r
+ 2) for UNDI without this capability, in case that network cable is attached when\r
+ Snp->Initialize() is invoked while network cable is unattached later,\r
+ NetLibDetectMedia() will report MediaPresent as TRUE, causing upper layer\r
+ apps to wait for timeout time.\r
+\r
+ @param[in] ServiceHandle The handle where network service binding protocols are\r
+ installed.\r
+ @param[out] MediaPresent The pointer to store the media status.\r
+\r
+ @retval EFI_SUCCESS Media detection success.\r
+ @retval EFI_INVALID_PARAMETER ServiceHandle is not a valid network device handle.\r
+ @retval EFI_UNSUPPORTED The network device does not support media detection.\r
+ @retval EFI_DEVICE_ERROR SNP is in an unknown state.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibDetectMedia (\r
+ IN EFI_HANDLE ServiceHandle,\r
+ OUT BOOLEAN *MediaPresent\r
+ );\r
+\r
+/**\r
+ Create an IPv4 device path node.\r
+\r
+ The header type of IPv4 device path node is MESSAGING_DEVICE_PATH.\r
+ The header subtype of IPv4 device path node is MSG_IPv4_DP.\r
+ The length of the IPv4 device path node in bytes is 19.\r
+ Get other information from parameters to make up the whole IPv4 device path node.\r
+\r
+ @param[in, out] Node The pointer to the IPv4 device path node.\r
+ @param[in] Controller The controller handle.\r
+ @param[in] LocalIp The local IPv4 address.\r
+ @param[in] LocalPort The local port.\r
+ @param[in] RemoteIp The remote IPv4 address.\r
+ @param[in] RemotePort The remote port.\r
+ @param[in] Protocol The protocol type in the IP header.\r
+ @param[in] UseDefaultAddress Whether this instance is using default address or not.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetLibCreateIPv4DPathNode (\r
+ IN OUT IPv4_DEVICE_PATH *Node,\r
+ IN EFI_HANDLE Controller,\r
+ IN IP4_ADDR LocalIp,\r
+ IN UINT16 LocalPort,\r
+ IN IP4_ADDR RemoteIp,\r
+ IN UINT16 RemotePort,\r
+ IN UINT16 Protocol,\r
+ IN BOOLEAN UseDefaultAddress\r
+ );\r
+\r
+/**\r
+ Create an IPv6 device path node.\r
+\r
+ The header type of IPv6 device path node is MESSAGING_DEVICE_PATH.\r
+ The header subtype of IPv6 device path node is MSG_IPv6_DP.\r
+ The length of the IPv6 device path node in bytes is 43.\r
+ Get other information from parameters to make up the whole IPv6 device path node.\r
+\r
+ @param[in, out] Node The pointer to the IPv6 device path node.\r
+ @param[in] Controller The controller handle.\r
+ @param[in] LocalIp The local IPv6 address.\r
+ @param[in] LocalPort The local port.\r
+ @param[in] RemoteIp The remote IPv6 address.\r
+ @param[in] RemotePort The remote port.\r
+ @param[in] Protocol The protocol type in the IP header.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetLibCreateIPv6DPathNode (\r
+ IN OUT IPv6_DEVICE_PATH *Node,\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_IPv6_ADDRESS *LocalIp,\r
+ IN UINT16 LocalPort,\r
+ IN EFI_IPv6_ADDRESS *RemoteIp,\r
+ IN UINT16 RemotePort,\r
+ IN UINT16 Protocol\r
+ );\r
+\r
+\r
+/**\r
+ Find the UNDI/SNP handle from controller and protocol GUID.\r
+\r
+ For example, IP will open an MNP child to transmit/receive\r
+ packets. When MNP is stopped, IP should also be stopped. IP\r
+ needs to find its own private data that is related the IP's\r
+ service binding instance that is installed on the UNDI/SNP handle.\r
+ The controller is then either an MNP or an ARP child handle. Note that\r
+ IP opens these handles using BY_DRIVER. Use that information to get the\r
+ UNDI/SNP handle.\r
+\r
+ @param[in] Controller The protocol handle to check.\r
+ @param[in] ProtocolGuid The protocol that is related with the handle.\r
+\r
+ @return The UNDI/SNP handle or NULL for errors.\r
+\r
+**/\r
+EFI_HANDLE\r
+EFIAPI\r
+NetLibGetNicHandle (\r
+ IN EFI_HANDLE Controller,\r
+ IN EFI_GUID *ProtocolGuid\r
+ );\r
+\r
+/**\r
+ This is the default unload handle for all the network drivers.\r
+\r
+ Disconnect the driver specified by ImageHandle from all the devices in the handle database.\r
+ Uninstall all the protocols installed in the driver entry point.\r
+\r
+ @param[in] ImageHandle The drivers' driver image.\r
+\r
+ @retval EFI_SUCCESS The image is unloaded.\r
+ @retval Others Failed to unload the image.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibDefaultUnload (\r
+ IN EFI_HANDLE ImageHandle\r
+ );\r
+\r
+/**\r
+ Convert one Null-terminated ASCII string (decimal dotted) to EFI_IPv4_ADDRESS.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip4Address The pointer to the converted IPv4 address.\r
+\r
+ @retval EFI_SUCCESS Converted to an IPv4 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is malformatted, or Ip4Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibAsciiStrToIp4 (\r
+ IN CONST CHAR8 *String,\r
+ OUT EFI_IPv4_ADDRESS *Ip4Address\r
+ );\r
+\r
+/**\r
+ Convert one Null-terminated ASCII string to EFI_IPv6_ADDRESS. The format of the\r
+ string is defined in RFC 4291 - Text Representation of Addresses.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+\r
+ @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is malformatted, or Ip6Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibAsciiStrToIp6 (\r
+ IN CONST CHAR8 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address\r
+ );\r
+\r
+/**\r
+ Convert one Null-terminated Unicode string (decimal dotted) to EFI_IPv4_ADDRESS.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip4Address The pointer to the converted IPv4 address.\r
+\r
+ @retval EFI_SUCCESS Converted to an IPv4 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is mal-formatted or Ip4Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp4 (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv4_ADDRESS *Ip4Address\r
+ );\r
+\r
+/**\r
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS. The format of\r
+ the string is defined in RFC 4291 - Text Representation of Addresses.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+\r
+ @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is malformatted or Ip6Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp6 (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address\r
+ );\r
+\r
+/**\r
+ Convert one Null-terminated Unicode string to EFI_IPv6_ADDRESS and prefix length.\r
+ The format of the string is defined in RFC 4291 - Text Representation of Addresses\r
+ Prefixes: ipv6-address/prefix-length.\r
+\r
+ @param[in] String The pointer to the Ascii string.\r
+ @param[out] Ip6Address The pointer to the converted IPv6 address.\r
+ @param[out] PrefixLength The pointer to the converted prefix length.\r
+\r
+ @retval EFI_SUCCESS Converted to an IPv6 address successfully.\r
+ @retval EFI_INVALID_PARAMETER The string is malformatted, or Ip6Address is NULL.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibStrToIp6andPrefix (\r
+ IN CONST CHAR16 *String,\r
+ OUT EFI_IPv6_ADDRESS *Ip6Address,\r
+ OUT UINT8 *PrefixLength\r
+ );\r
+\r
+/**\r
+\r
+ Convert one EFI_IPv6_ADDRESS to Null-terminated Unicode string.\r
+ The text representation of address is defined in RFC 4291.\r
+ \r
+ @param[in] Ip6Address The pointer to the IPv6 address.\r
+ @param[out] String The buffer to return the converted string.\r
+ @param[in] StringSize The length in bytes of the input String.\r
+ \r
+ @retval EFI_SUCCESS Convert to string successfully.\r
+ @retval EFI_INVALID_PARAMETER The input parameter is invalid.\r
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small for the result. BufferSize has been \r
+ updated with the size needed to complete the request.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibIp6ToStr (\r
+ IN EFI_IPv6_ADDRESS *Ip6Address,\r
+ OUT CHAR16 *String,\r
+ IN UINTN StringSize\r
+ );\r
+\r
+//\r
+// Various signatures\r
+//\r
+#define NET_BUF_SIGNATURE SIGNATURE_32 ('n', 'b', 'u', 'f')\r
+#define NET_VECTOR_SIGNATURE SIGNATURE_32 ('n', 'v', 'e', 'c')\r
+#define NET_QUE_SIGNATURE SIGNATURE_32 ('n', 'b', 'q', 'u')\r
+\r
+\r
+#define NET_PROTO_DATA 64 // Opaque buffer for protocols\r
+#define NET_BUF_HEAD 1 // Trim or allocate space from head\r
+#define NET_BUF_TAIL 0 // Trim or allocate space from tail\r
+#define NET_VECTOR_OWN_FIRST 0x01 // We allocated the 1st block in the vector\r
+\r
+#define NET_CHECK_SIGNATURE(PData, SIGNATURE) \\r
+ ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))\r
+\r
+//\r
+// Single memory block in the vector.\r
+//\r
+typedef struct {\r
+ UINT32 Len; // The block's length\r
+ UINT8 *Bulk; // The block's Data\r
+} NET_BLOCK;\r
+\r
+typedef VOID (EFIAPI *NET_VECTOR_EXT_FREE) (VOID *Arg);\r
+\r
+//\r
+//NET_VECTOR contains several blocks to hold all packet's\r
+//fragments and other house-keeping stuff for sharing. It\r
+//doesn't specify the where actual packet fragment begins.\r
+//\r
+typedef struct {\r
+ UINT32 Signature;\r
+ INTN RefCnt; // Reference count to share NET_VECTOR.\r
+ NET_VECTOR_EXT_FREE Free; // external function to free NET_VECTOR\r
+ VOID *Arg; // opaque argument to Free\r
+ UINT32 Flag; // Flags, NET_VECTOR_OWN_FIRST\r
+ UINT32 Len; // Total length of the associated BLOCKs\r
+\r
+ UINT32 BlockNum;\r
+ NET_BLOCK Block[1];\r
+} NET_VECTOR;\r
+\r
+//\r
+//NET_BLOCK_OP operates on the NET_BLOCK. It specifies\r
+//where the actual fragment begins and ends\r
+//\r
+typedef struct {\r
+ UINT8 *BlockHead; // Block's head, or the smallest valid Head\r
+ UINT8 *BlockTail; // Block's tail. BlockTail-BlockHead=block length\r
+ UINT8 *Head; // 1st byte of the data in the block\r
+ UINT8 *Tail; // Tail of the data in the block, Tail-Head=Size\r
+ UINT32 Size; // The size of the data\r
+} NET_BLOCK_OP;\r
+\r
+typedef union {\r
+ IP4_HEAD *Ip4;\r
+ EFI_IP6_HEADER *Ip6;\r
+} NET_IP_HEAD;\r
+\r
+//\r
+//NET_BUF is the buffer manage structure used by the\r
+//network stack. Every network packet may be fragmented. The Vector points to\r
+//memory blocks used by each fragment, and BlockOp\r
+//specifies where each fragment begins and ends.\r
+//\r
+//It also contains an opaque area for the protocol to store\r
+//per-packet information. Protocol must be careful not\r
+//to overwrite the members after that.\r
+//\r
+typedef struct {\r
+ UINT32 Signature;\r
+ INTN RefCnt;\r
+ LIST_ENTRY List; // The List this NET_BUF is on\r
+\r
+ NET_IP_HEAD Ip; // Network layer header, for fast access\r
+ TCP_HEAD *Tcp; // Transport layer header, for fast access\r
+ EFI_UDP_HEADER *Udp; // User Datagram Protocol header\r
+ UINT8 ProtoData [NET_PROTO_DATA]; //Protocol specific data\r
+\r
+ NET_VECTOR *Vector; // The vector containing the packet\r
+\r
+ UINT32 BlockOpNum; // Total number of BlockOp in the buffer\r
+ UINT32 TotalSize; // Total size of the actual packet\r
+ NET_BLOCK_OP BlockOp[1]; // Specify the position of actual packet\r
+} NET_BUF;\r
+\r
+//\r
+//A queue of NET_BUFs. It is a thin extension of\r
+//NET_BUF functions.\r
+//\r
+typedef struct {\r
+ UINT32 Signature;\r
+ INTN RefCnt;\r
+ LIST_ENTRY List; // The List this buffer queue is on\r
+\r
+ LIST_ENTRY BufList; // list of queued buffers\r
+ UINT32 BufSize; // total length of DATA in the buffers\r
+ UINT32 BufNum; // total number of buffers on the chain\r
+} NET_BUF_QUEUE;\r
+\r
+//\r
+// Pseudo header for TCP and UDP checksum\r
+//\r
+#pragma pack(1)\r
+typedef struct {\r
+ IP4_ADDR SrcIp;\r
+ IP4_ADDR DstIp;\r
+ UINT8 Reserved;\r
+ UINT8 Protocol;\r
+ UINT16 Len;\r
+} NET_PSEUDO_HDR;\r
+\r
+typedef struct {\r
+ EFI_IPv6_ADDRESS SrcIp;\r
+ EFI_IPv6_ADDRESS DstIp;\r
+ UINT32 Len;\r
+ UINT32 Reserved:24;\r
+ UINT32 NextHeader:8;\r
+} NET_IP6_PSEUDO_HDR;\r
+#pragma pack()\r
+\r
+//\r
+// The fragment entry table used in network interfaces. This is\r
+// the same as NET_BLOCK now. Use two different to distinguish\r
+// the two in case that NET_BLOCK be enhanced later.\r
+//\r
+typedef struct {\r
+ UINT32 Len;\r
+ UINT8 *Bulk;\r
+} NET_FRAGMENT;\r
+\r
+#define NET_GET_REF(PData) ((PData)->RefCnt++)\r
+#define NET_PUT_REF(PData) ((PData)->RefCnt--)\r
+#define NETBUF_FROM_PROTODATA(Info) BASE_CR((Info), NET_BUF, ProtoData)\r
+\r
+#define NET_BUF_SHARED(Buf) \\r
+ (((Buf)->RefCnt > 1) || ((Buf)->Vector->RefCnt > 1))\r
+\r
+#define NET_VECTOR_SIZE(BlockNum) \\r
+ (sizeof (NET_VECTOR) + ((BlockNum) - 1) * sizeof (NET_BLOCK))\r
+\r
+#define NET_BUF_SIZE(BlockOpNum) \\r
+ (sizeof (NET_BUF) + ((BlockOpNum) - 1) * sizeof (NET_BLOCK_OP))\r
+\r
+#define NET_HEADSPACE(BlockOp) \\r
+ ((UINTN)((BlockOp)->Head) - (UINTN)((BlockOp)->BlockHead))\r
+\r
+#define NET_TAILSPACE(BlockOp) \\r
+ ((UINTN)((BlockOp)->BlockTail) - (UINTN)((BlockOp)->Tail))\r
+\r
+/**\r
+ Allocate a single block NET_BUF. Upon allocation, all the\r
+ free space is in the tail room.\r
+\r
+ @param[in] Len The length of the block.\r
+\r
+ @return The pointer to the allocated NET_BUF, or NULL if the\r
+ allocation failed due to resource limitations.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufAlloc (\r
+ IN UINT32 Len\r
+ );\r
+\r
+/**\r
+ Free the net buffer and its associated NET_VECTOR.\r
+\r
+ Decrease the reference count of the net buffer by one. Free the associated net\r
+ vector and itself if the reference count of the net buffer is decreased to 0.\r
+ The net vector free operation decreases the reference count of the net\r
+ vector by one, and performs the resource free operation when the reference count\r
+ of the net vector is 0.\r
+\r
+ @param[in] Nbuf The pointer to the NET_BUF to be freed.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufFree (\r
+ IN NET_BUF *Nbuf\r
+ );\r
+\r
+/**\r
+ Get the index of NET_BLOCK_OP that contains the byte at Offset in the net\r
+ buffer.\r
+\r
+ For example, this function can be used to retrieve the IP header in the packet. It\r
+ also can be used to get the fragment that contains the byte used\r
+ mainly by the library implementation itself.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer.\r
+ @param[in] Offset The offset of the byte.\r
+ @param[out] Index Index of the NET_BLOCK_OP that contains the byte at\r
+ Offset.\r
+\r
+ @return The pointer to the Offset'th byte of data in the net buffer, or NULL\r
+ if there is no such data in the net buffer.\r
+\r
+**/\r
+UINT8 *\r
+EFIAPI\r
+NetbufGetByte (\r
+ IN NET_BUF *Nbuf,\r
+ IN UINT32 Offset,\r
+ OUT UINT32 *Index OPTIONAL\r
+ );\r
+\r
+/**\r
+ Create a copy of the net buffer that shares the associated net vector.\r
+\r
+ The reference count of the newly created net buffer is set to 1. The reference\r
+ count of the associated net vector is increased by one.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer to be cloned.\r
+\r
+ @return The pointer to the cloned net buffer, or NULL if the\r
+ allocation failed due to resource limitations.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufClone (\r
+ IN NET_BUF *Nbuf\r
+ );\r
+\r
+/**\r
+ Create a duplicated copy of the net buffer with data copied and HeadSpace\r
+ bytes of head space reserved.\r
+\r
+ The duplicated net buffer will allocate its own memory to hold the data of the\r
+ source net buffer.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer to be duplicated from.\r
+ @param[in, out] Duplicate The pointer to the net buffer to duplicate to. If\r
+ NULL, a new net buffer is allocated.\r
+ @param[in] HeadSpace The length of the head space to reserve.\r
+\r
+ @return The pointer to the duplicated net buffer, or NULL if\r
+ the allocation failed due to resource limitations.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufDuplicate (\r
+ IN NET_BUF *Nbuf,\r
+ IN OUT NET_BUF *Duplicate OPTIONAL,\r
+ IN UINT32 HeadSpace\r
+ );\r
+\r
+/**\r
+ Create a NET_BUF structure which contains Len byte data of Nbuf starting from\r
+ Offset.\r
+\r
+ A new NET_BUF structure will be created but the associated data in NET_VECTOR\r
+ is shared. This function exists to perform IP packet fragmentation.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer to be extracted.\r
+ @param[in] Offset Starting point of the data to be included in the new\r
+ net buffer.\r
+ @param[in] Len The bytes of data to be included in the new net buffer.\r
+ @param[in] HeadSpace The bytes of the head space to reserve for the protocol header.\r
+\r
+ @return The pointer to the cloned net buffer, or NULL if the\r
+ allocation failed due to resource limitations.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufGetFragment (\r
+ IN NET_BUF *Nbuf,\r
+ IN UINT32 Offset,\r
+ IN UINT32 Len,\r
+ IN UINT32 HeadSpace\r
+ );\r
+\r
+/**\r
+ Reserve some space in the header room of the net buffer.\r
+\r
+ Upon allocation, all the space is in the tail room of the buffer. Call this\r
+ function to move space to the header room. This function is quite limited\r
+ in that it can only reserve space from the first block of an empty NET_BUF not\r
+ built from the external. However, it should be enough for the network stack.\r
+\r
+ @param[in, out] Nbuf The pointer to the net buffer.\r
+ @param[in] Len The length of buffer to be reserved from the header.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufReserve (\r
+ IN OUT NET_BUF *Nbuf,\r
+ IN UINT32 Len\r
+ );\r
+\r
+/**\r
+ Allocate Len bytes of space from the header or tail of the buffer.\r
+\r
+ @param[in, out] Nbuf The pointer to the net buffer.\r
+ @param[in] Len The length of the buffer to be allocated.\r
+ @param[in] FromHead The flag to indicate whether to reserve the data\r
+ from head (TRUE) or tail (FALSE).\r
+\r
+ @return The pointer to the first byte of the allocated buffer,\r
+ or NULL, if there is no sufficient space.\r
+\r
+**/\r
+UINT8*\r
+EFIAPI\r
+NetbufAllocSpace (\r
+ IN OUT NET_BUF *Nbuf,\r
+ IN UINT32 Len,\r
+ IN BOOLEAN FromHead\r
+ );\r
+\r
+/**\r
+ Trim Len bytes from the header or the tail of the net buffer.\r
+\r
+ @param[in, out] Nbuf The pointer to the net buffer.\r
+ @param[in] Len The length of the data to be trimmed.\r
+ @param[in] FromHead The flag to indicate whether trim data is from the \r
+ head (TRUE) or the tail (FALSE).\r
+\r
+ @return The length of the actual trimmed data, which may be less\r
+ than Len if the TotalSize of Nbuf is less than Len.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetbufTrim (\r
+ IN OUT NET_BUF *Nbuf,\r
+ IN UINT32 Len,\r
+ IN BOOLEAN FromHead\r
+ );\r
+\r
+/**\r
+ Copy Len bytes of data from the specific offset of the net buffer to the\r
+ destination memory.\r
+\r
+ The Len bytes of data may cross several fragments of the net buffer.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer.\r
+ @param[in] Offset The sequence number of the first byte to copy.\r
+ @param[in] Len The length of the data to copy.\r
+ @param[in] Dest The destination of the data to copy to.\r
+\r
+ @return The length of the actual copied data, or 0 if the offset\r
+ specified exceeds the total size of net buffer.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetbufCopy (\r
+ IN NET_BUF *Nbuf,\r
+ IN UINT32 Offset,\r
+ IN UINT32 Len,\r
+ IN UINT8 *Dest\r
+ );\r
+\r
+/**\r
+ Build a NET_BUF from external blocks.\r
+\r
+ A new NET_BUF structure will be created from external blocks. An additional block\r
+ of memory will be allocated to hold reserved HeadSpace bytes of header room\r
+ and existing HeadLen bytes of header, but the external blocks are shared by the\r
+ net buffer to avoid data copying.\r
+\r
+ @param[in] ExtFragment The pointer to the data block.\r
+ @param[in] ExtNum The number of the data blocks.\r
+ @param[in] HeadSpace The head space to be reserved.\r
+ @param[in] HeadLen The length of the protocol header. The function\r
+ pulls this amount of data into a linear block.\r
+ @param[in] ExtFree The pointer to the caller-provided free function.\r
+ @param[in] Arg The argument passed to ExtFree when ExtFree is\r
+ called.\r
+\r
+ @return The pointer to the net buffer built from the data blocks,\r
+ or NULL if the allocation failed due to resource\r
+ limit.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufFromExt (\r
+ IN NET_FRAGMENT *ExtFragment,\r
+ IN UINT32 ExtNum,\r
+ IN UINT32 HeadSpace,\r
+ IN UINT32 HeadLen,\r
+ IN NET_VECTOR_EXT_FREE ExtFree,\r
+ IN VOID *Arg OPTIONAL\r
+ );\r
+\r
+/**\r
+ Build a fragment table to contain the fragments in the net buffer. This is the\r
+ opposite operation of the NetbufFromExt.\r
+\r
+ @param[in] Nbuf Points to the net buffer.\r
+ @param[in, out] ExtFragment The pointer to the data block.\r
+ @param[in, out] ExtNum The number of the data blocks.\r
+\r
+ @retval EFI_BUFFER_TOO_SMALL The number of non-empty blocks is bigger than\r
+ ExtNum.\r
+ @retval EFI_SUCCESS The fragment table was built successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetbufBuildExt (\r
+ IN NET_BUF *Nbuf,\r
+ IN OUT NET_FRAGMENT *ExtFragment,\r
+ IN OUT UINT32 *ExtNum\r
+ );\r
+\r
+/**\r
+ Build a net buffer from a list of net buffers.\r
+\r
+ All the fragments will be collected from the list of NEW_BUF, and then a new\r
+ net buffer will be created through NetbufFromExt.\r
+\r
+ @param[in] BufList A List of the net buffer.\r
+ @param[in] HeadSpace The head space to be reserved.\r
+ @param[in] HeaderLen The length of the protocol header. The function\r
+ pulls this amount of data into a linear block.\r
+ @param[in] ExtFree The pointer to the caller provided free function.\r
+ @param[in] Arg The argument passed to ExtFree when ExtFree is called.\r
+\r
+ @return The pointer to the net buffer built from the list of net\r
+ buffers.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufFromBufList (\r
+ IN LIST_ENTRY *BufList,\r
+ IN UINT32 HeadSpace,\r
+ IN UINT32 HeaderLen,\r
+ IN NET_VECTOR_EXT_FREE ExtFree,\r
+ IN VOID *Arg OPTIONAL\r
+ );\r
+\r
+/**\r
+ Free a list of net buffers.\r
+\r
+ @param[in, out] Head The pointer to the head of linked net buffers.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufFreeList (\r
+ IN OUT LIST_ENTRY *Head\r
+ );\r
+\r
+/**\r
+ Initiate the net buffer queue.\r
+\r
+ @param[in, out] NbufQue The pointer to the net buffer queue to be initialized.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufQueInit (\r
+ IN OUT NET_BUF_QUEUE *NbufQue\r
+ );\r
+\r
+/**\r
+ Allocate and initialize a net buffer queue.\r
+\r
+ @return The pointer to the allocated net buffer queue, or NULL if the\r
+ allocation failed due to resource limit.\r
+\r
+**/\r
+NET_BUF_QUEUE *\r
+EFIAPI\r
+NetbufQueAlloc (\r
+ VOID\r
+ );\r
+\r
+/**\r
+ Free a net buffer queue.\r
+\r
+ Decrease the reference count of the net buffer queue by one. The real resource\r
+ free operation isn't performed until the reference count of the net buffer\r
+ queue is decreased to 0.\r
+\r
+ @param[in] NbufQue The pointer to the net buffer queue to be freed.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufQueFree (\r
+ IN NET_BUF_QUEUE *NbufQue\r
+ );\r
+\r
+/**\r
+ Remove a net buffer from the head in the specific queue and return it.\r
+\r
+ @param[in, out] NbufQue The pointer to the net buffer queue.\r
+\r
+ @return The pointer to the net buffer removed from the specific queue,\r
+ or NULL if there is no net buffer in the specific queue.\r
+\r
+**/\r
+NET_BUF *\r
+EFIAPI\r
+NetbufQueRemove (\r
+ IN OUT NET_BUF_QUEUE *NbufQue\r
+ );\r
+\r
+/**\r
+ Append a net buffer to the net buffer queue.\r
+\r
+ @param[in, out] NbufQue The pointer to the net buffer queue.\r
+ @param[in, out] Nbuf The pointer to the net buffer to be appended.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufQueAppend (\r
+ IN OUT NET_BUF_QUEUE *NbufQue,\r
+ IN OUT NET_BUF *Nbuf\r
+ );\r
+\r
+/**\r
+ Copy Len bytes of data from the net buffer queue at the specific offset to the\r
+ destination memory.\r
+\r
+ The copying operation is the same as NetbufCopy, but applies to the net buffer\r
+ queue instead of the net buffer.\r
+\r
+ @param[in] NbufQue The pointer to the net buffer queue.\r
+ @param[in] Offset The sequence number of the first byte to copy.\r
+ @param[in] Len The length of the data to copy.\r
+ @param[out] Dest The destination of the data to copy to.\r
+\r
+ @return The length of the actual copied data, or 0 if the offset\r
+ specified exceeds the total size of net buffer queue.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetbufQueCopy (\r
+ IN NET_BUF_QUEUE *NbufQue,\r
+ IN UINT32 Offset,\r
+ IN UINT32 Len,\r
+ OUT UINT8 *Dest\r
+ );\r
+\r
+/**\r
+ Trim Len bytes of data from the buffer queue and free any net buffer\r
+ that is completely trimmed.\r
+\r
+ The trimming operation is the same as NetbufTrim but applies to the net buffer\r
+ queue instead of the net buffer.\r
+\r
+ @param[in, out] NbufQue The pointer to the net buffer queue.\r
+ @param[in] Len The length of the data to trim.\r
+\r
+ @return The actual length of the data trimmed.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+NetbufQueTrim (\r
+ IN OUT NET_BUF_QUEUE *NbufQue,\r
+ IN UINT32 Len\r
+ );\r
+\r
+\r
+/**\r
+ Flush the net buffer queue.\r
+\r
+ @param[in, out] NbufQue The pointer to the queue to be flushed.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+NetbufQueFlush (\r
+ IN OUT NET_BUF_QUEUE *NbufQue\r
+ );\r
+\r
+/**\r
+ Compute the checksum for a bulk of data.\r
+\r
+ @param[in] Bulk The pointer to the data.\r
+ @param[in] Len The length of the data, in bytes.\r
+\r
+ @return The computed checksum.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetblockChecksum (\r
+ IN UINT8 *Bulk,\r
+ IN UINT32 Len\r
+ );\r
+\r
+/**\r
+ Add two checksums.\r
+\r
+ @param[in] Checksum1 The first checksum to be added.\r
+ @param[in] Checksum2 The second checksum to be added.\r
+\r
+ @return The new checksum.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetAddChecksum (\r
+ IN UINT16 Checksum1,\r
+ IN UINT16 Checksum2\r
+ );\r
+\r
+/**\r
+ Compute the checksum for a NET_BUF.\r
+\r
+ @param[in] Nbuf The pointer to the net buffer.\r
+\r
+ @return The computed checksum.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetbufChecksum (\r
+ IN NET_BUF *Nbuf\r
+ );\r
+\r
+/**\r
+ Compute the checksum for TCP/UDP pseudo header.\r
+\r
+ Src and Dst are in network byte order, and Len is in host byte order.\r
+\r
+ @param[in] Src The source address of the packet.\r
+ @param[in] Dst The destination address of the packet.\r
+ @param[in] Proto The protocol type of the packet.\r
+ @param[in] Len The length of the packet.\r
+\r
+ @return The computed checksum.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetPseudoHeadChecksum (\r
+ IN IP4_ADDR Src,\r
+ IN IP4_ADDR Dst,\r
+ IN UINT8 Proto,\r
+ IN UINT16 Len\r
+ );\r
+\r
+/**\r
+ Compute the checksum for the TCP6/UDP6 pseudo header.\r
+\r
+ Src and Dst are in network byte order, and Len is in host byte order.\r
+\r
+ @param[in] Src The source address of the packet.\r
+ @param[in] Dst The destination address of the packet.\r
+ @param[in] NextHeader The protocol type of the packet.\r
+ @param[in] Len The length of the packet.\r
+\r
+ @return The computed checksum.\r
+\r
+**/\r
+UINT16\r
+EFIAPI\r
+NetIp6PseudoHeadChecksum (\r
+ IN EFI_IPv6_ADDRESS *Src,\r
+ IN EFI_IPv6_ADDRESS *Dst,\r
+ IN UINT8 NextHeader,\r
+ IN UINT32 Len\r
+ );\r
+\r
+/**\r
+ The function frees the net buffer which allocated by the IP protocol. It releases \r
+ only the net buffer and doesn't call the external free function. \r
+\r
+ This function should be called after finishing the process of mIpSec->ProcessExt() \r
+ for outbound traffic. The (EFI_IPSEC2_PROTOCOL)->ProcessExt() allocates a new \r
+ buffer for the ESP, so there needs a function to free the old net buffer.\r
+\r
+ @param[in] Nbuf The network buffer to be freed.\r
+\r
+**/\r
+VOID\r
+NetIpSecNetbufFree (\r
+ NET_BUF *Nbuf\r
+ );\r
+\r
+/**\r
+ This function obtains the system guid from the smbios table.\r
+\r
+ @param[out] SystemGuid The pointer of the returned system guid.\r
+\r
+ @retval EFI_SUCCESS Successfully obtained the system guid.\r
+ @retval EFI_NOT_FOUND Did not find the SMBIOS table.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+NetLibGetSystemGuid (\r
+ OUT EFI_GUID *SystemGuid\r
+ );\r
+\r
+/**\r
+ Create Dns QName according the queried domain name. \r
+ QName is a domain name represented as a sequence of labels, \r
+ where each label consists of a length octet followed by that \r
+ number of octets. The QName terminates with the zero \r
+ length octet for the null label of the root. Caller should \r
+ take responsibility to free the buffer in returned pointer.\r
+\r
+ @param DomainName The pointer to the queried domain name string. \r
+\r
+ @retval NULL Failed to fill QName.\r
+ @return QName filled successfully.\r
+ \r
+**/ \r
+CHAR8 *\r
+EFIAPI\r
+NetLibCreateDnsQName (\r
+ IN CHAR16 *DomainName\r
+ );\r
+\r
+#endif\r
projects / mirror_edk2.git / blobdiff