/** @file
+ This library provides basic function for UEFI network stack.
-Copyright (c) 2005 - 2007, Intel Corporation
+Copyright (c) 2005 - 2008, 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
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 <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/ComponentName.h>
#include <Protocol/DriverConfiguration.h>
#include <Protocol/DriverDiagnostics.h>
-
-#define EFI_NET_LITTLE_ENDIAN
+#include <Protocol/Dpc.h>
typedef UINT32 IP4_ADDR;
typedef UINT32 TCP_SEQNO;
typedef UINT16 TCP_PORTNO;
-enum {
+typedef enum {
NET_ETHER_ADDR_LEN = 6,
NET_IFTYPE_ETHERNET = 0x01,
IP4_ADDR_CLASSD,
IP4_ADDR_CLASSE,
- IP4_MASK_NUM = 33,
-};
+ IP4_MASK_NUM = 33
+} IP4_CLASS_TYPE;
#pragma pack(1)
// 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;
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;
#pragma pack()
#define NET_MAC_EQUAL(pMac1, pMac2, Len) \
- (NetCompareMem ((pMac1), (pMac2), Len) == 0)
+ (CompareMem ((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) | \
(((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.
//
// 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))
+#define EFI_IP4(EfiIpAddr) (*(IP4_ADDR *) ((EfiIpAddr).Addr))
+#define EFI_NTOHL(EfiIp) (NTOHL (EFI_IP4 ((EfiIp))))
+#define EFI_IP4_EQUAL(Ip1, Ip2) (CompareMem ((Ip1), (Ip2), sizeof (EFI_IPv4_ADDRESS)) == 0)
+
+/**
+ Return the length of the mask. If the mask is invalid,
+ return the invalid length 33, which is IP4_MASK_NUM.
+ NetMask is in the host byte order.
+
+ @param NetMask The netmask to get the length from
+ @return The length of the netmask, IP4_MASK_NUM if the mask isn't
+ @return supported.
+
+**/
INTN
+EFIAPI
NetGetMaskLength (
IN IP4_ADDR Mask
);
+/**
+ Return the class of the address, such as class a, b, c.
+ Addr is in host byte order.
+
+ @param Addr The address to get the class from
+
+ @return IP address class, such as IP4_ADDR_CLASSA
+
+**/
INTN
+EFIAPI
NetGetIpClass (
IN IP4_ADDR Addr
);
+/**
+ Check whether the IP is a valid unicast address according to
+ the netmask. If NetMask is zero, use the IP address's class to
+ get the default mask.
+
+ @param Ip The IP to check againist
+ @param NetMask The mask of the IP
+
+ @return TRUE if IP is a valid unicast address on the network, otherwise FALSE
+
+**/
BOOLEAN
Ip4IsUnicast (
IN IP4_ADDR Ip,
IN IP4_ADDR NetMask
);
-extern IP4_ADDR mIp4AllMasks [IP4_MASK_NUM];
+extern IP4_ADDR gIp4AllMasks [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
+extern EFI_IPv4_ADDRESS mZeroIp4Addr;
-//
-// 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 NET_IS_DIGIT(Ch) (('0' <= (Ch)) && ((Ch) <= '9'))
+#define NET_ROUNDUP(size, unit) (((size) + (unit) - 1) & (~((unit) - 1)))
+#define NET_IS_LOWER_CASE_CHAR(Ch) (('a' <= (Ch)) && ((Ch) <= 'z'))
+#define NET_IS_UPPER_CASE_CHAR(Ch) (('A' <= (Ch)) && ((Ch) <= 'Z'))
#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)
+#define NET_RANDOM(Seed) ((UINT32) ((UINT32) (Seed) * 1103515245UL + 12345) % 4294967295UL)
+
+/**
+ Extract a UINT32 from a byte stream, then convert it to host
+ byte order. Use this function to avoid alignment error.
+ @param Buf The buffer to extract the UINT32.
+ @return The UINT32 extracted.
+
+**/
UINT32
+EFIAPI
NetGetUint32 (
IN UINT8 *Buf
);
+/**
+ Put a UINT32 to the byte stream. Convert it from host byte order
+ to network byte order before putting.
+
+ @param Buf The buffer to put the UINT32
+ @param Data The data to put
+
+ @return None
+
+**/
VOID
+EFIAPI
NetPutUint32 (
IN UINT8 *Buf,
IN UINT32 Data
);
+/**
+ Initialize a random seed using current time.
+
+ None
+
+ @return The random seed initialized with current time.
+
+**/
UINT32
+EFIAPI
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_TAIL(ListHead, Type, Field) \
NET_LIST_USER_STRUCT((ListHead)->BackLink, Type, Field)
-#define NetListRemoveEntry(Entry) RemoveEntryList (Entry)
-NET_LIST_ENTRY*
+/**
+ Remove the first entry on the list
+
+ @param Head The list header
+
+ @return The entry that is removed from the list, NULL if the list is empty.
+
+**/
+LIST_ENTRY *
+EFIAPI
NetListRemoveHead (
- NET_LIST_ENTRY *Head
+ LIST_ENTRY *Head
);
-NET_LIST_ENTRY*
+/**
+ Remove the last entry on the list
+
+ @param Head The list head
+
+ @return The entry that is removed from the list, NULL if the list is empty.
+
+**/
+LIST_ENTRY *
+EFIAPI
NetListRemoveTail (
- NET_LIST_ENTRY *Head
+ LIST_ENTRY *Head
);
+/**
+ Insert the NewEntry after the PrevEntry.
+
+ @param PrevEntry The previous entry to insert after
+ @param NewEntry The new entry to insert
+
+ @return None
+
+**/
VOID
+EFIAPI
NetListInsertAfter (
- IN NET_LIST_ENTRY *PrevEntry,
- IN NET_LIST_ENTRY *NewEntry
+ IN LIST_ENTRY *PrevEntry,
+ IN LIST_ENTRY *NewEntry
);
+/**
+ Insert the NewEntry before the PostEntry.
+
+ @param PostEntry The entry to insert before
+ @param NewEntry The new entry to insert
+
+ @return None
+
+**/
VOID
+EFIAPI
NetListInsertBefore (
- IN NET_LIST_ENTRY *PostEntry,
- IN NET_LIST_ENTRY *NewEntry
+ IN LIST_ENTRY *PostEntry,
+ IN LIST_ENTRY *NewEntry
);
// tokens. The drivers can share code to manage those objects.
//
typedef struct {
- NET_LIST_ENTRY Link;
+ LIST_ENTRY Link;
VOID *Key;
VOID *Value;
} NET_MAP_ITEM;
typedef struct {
- NET_LIST_ENTRY Used;
- NET_LIST_ENTRY Recycled;
+ LIST_ENTRY Used;
+ LIST_ENTRY Recycled;
UINTN Count;
} NET_MAP;
#define NET_MAP_INCREAMENT 64
+/**
+ Initialize the netmap. Netmap is a reposity to keep the <Key, Value> pairs.
+
+ @param Map The netmap to initialize
+
+ @return None
+
+**/
VOID
+EFIAPI
NetMapInit (
IN NET_MAP *Map
);
+/**
+ To clean up the netmap, that is, release allocated memories.
+
+ @param Map The netmap to clean up.
+
+ @return None
+
+**/
VOID
+EFIAPI
NetMapClean (
IN NET_MAP *Map
);
+/**
+ Test whether the netmap is empty
+
+ @param Map The net map to test
+
+ @return TRUE if the netmap is empty, otherwise FALSE.
+
+**/
BOOLEAN
+EFIAPI
NetMapIsEmpty (
IN NET_MAP *Map
);
+/**
+ Return the number of the <Key, Value> pairs in the netmap.
+
+ @param Map The netmap to get the entry number
+
+ @return The entry number in the netmap.
+
+**/
UINTN
+EFIAPI
NetMapGetCount (
IN NET_MAP *Map
);
+/**
+ Allocate an item to save the <Key, Value> pair to the head of the netmap.
+
+ @param Map The netmap to insert into
+ @param Key The user's key
+ @param Value The user's value for the key
+
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item
+ @retval EFI_SUCCESS The item is inserted to the head
+
+**/
EFI_STATUS
+EFIAPI
NetMapInsertHead (
IN NET_MAP *Map,
IN VOID *Key,
IN VOID *Value OPTIONAL
);
+/**
+ Allocate an item to save the <Key, Value> pair to the tail of the netmap.
+
+ @param Map The netmap to insert into
+ @param Key The user's key
+ @param Value The user's value for the key
+
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the item
+ @retval EFI_SUCCESS The item is inserted to the tail
+
+**/
EFI_STATUS
+EFIAPI
NetMapInsertTail (
IN NET_MAP *Map,
IN VOID *Key,
IN VOID *Value OPTIONAL
);
+/**
+ Find the key in the netmap
+
+ @param Map The netmap to search within
+ @param Key The key to search
+
+ @return The point to the item contains the Key, or NULL if Key isn't in the map.
+
+**/
NET_MAP_ITEM *
+EFIAPI
NetMapFindKey (
IN NET_MAP *Map,
IN VOID *Key
);
+/**
+ Remove the item from the netmap
+
+ @param Map The netmap to remove the item from
+ @param Item The item to remove
+ @param Value The variable to receive the value if not NULL
+
+ @return The key of the removed item.
+
+**/
VOID *
+EFIAPI
NetMapRemoveItem (
IN NET_MAP *Map,
IN NET_MAP_ITEM *Item,
OUT VOID **Value OPTIONAL
);
+/**
+ Remove the first entry on the netmap.
+
+ @param Map The netmap to remove the head from
+ @param Value The variable to receive the value if not NULL
+
+ @return The key of the item removed
+
+**/
VOID *
+EFIAPI
NetMapRemoveHead (
IN NET_MAP *Map,
OUT VOID **Value OPTIONAL
);
+/**
+ Remove the last entry on the netmap.
+
+ @param Map The netmap to remove the tail from
+ @param Value The variable to receive the value if not NULL
+
+ @return The key of the item removed
+
+**/
VOID *
+EFIAPI
NetMapRemoveTail (
IN NET_MAP *Map,
OUT VOID **Value OPTIONAL
IN VOID *Arg
);
+/**
+ Iterate through the netmap and call CallBack for each item. It will
+ contiue the traverse if CallBack returns EFI_SUCCESS, otherwise, break
+ from the loop. It returns the CallBack's last return value. This
+ function is delete safe for the current item.
+
+ @param Map The Map to iterate through
+ @param CallBack The callback function to call for each item.
+ @param Arg The opaque parameter to the callback
+
+ @return It returns the CallBack's last return value.
+
+**/
EFI_STATUS
+EFIAPI
NetMapIterate (
IN NET_MAP *Map,
IN NET_MAP_CALLBACK CallBack,
//
// Helper functions to implement driver binding and service binding protocols.
//
+/**
+ Create a child of the service that is identified by ServiceBindingGuid.
+
+ @param ControllerHandle The controller which has the service installed.
+ @param ImageHandle The image handle used to open service.
+ @param ServiceBindingGuid The service's Guid.
+ @param ChildHandle The handle to receive the create child
+
+ @retval EFI_SUCCESS The child is successfully created.
+ @retval Others Failed to create the child.
+
+**/
EFI_STATUS
+EFIAPI
NetLibCreateServiceChild (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ImageHandle,
OUT EFI_HANDLE *ChildHandle
);
+/**
+ Destory a child of the service that is identified by ServiceBindingGuid.
+
+ @param ControllerHandle The controller which has the service installed.
+ @param ImageHandle The image handle used to open service.
+ @param ServiceBindingGuid The service's Guid.
+ @param ChildHandle The child to destory
+
+ @retval EFI_SUCCESS The child is successfully destoried.
+ @retval Others Failed to destory the child.
+
+**/
EFI_STATUS
+EFIAPI
NetLibDestroyServiceChild (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ImageHandle,
IN EFI_HANDLE ChildHandle
);
+/**
+ Convert the mac address of the simple network protocol installed on
+ SnpHandle to a unicode string. Callers are responsible for freeing the
+ string storage.
+
+ @param SnpHandle The handle where the simple network protocol is
+ installed on.
+ @param ImageHandle The image handle used to act as the agent handle to
+ get the simple network protocol.
+ @param MacString The pointer to store the address of the string
+ representation of the mac address.
+
+ @retval EFI_OUT_OF_RESOURCES There are not enough memory resource.
+ @retval other Failed to open the simple network protocol.
+
+**/
EFI_STATUS
+EFIAPI
NetLibGetMacString (
IN EFI_HANDLE SnpHandle,
IN EFI_HANDLE ImageHandle,
IN OUT CHAR16 **MacString
);
+/**
+ Create an IPv4 device path node.
+
+ @param Node Pointer to the IPv4 device path node.
+ @param Controller The handle where the NIC IP4 config protocol resides.
+ @param LocalIp The local IPv4 address.
+ @param LocalPort The local port.
+ @param RemoteIp The remote IPv4 address.
+ @param RemotePort The remote port.
+ @param Protocol The protocol type in the IP header.
+ @param UseDefaultAddress Whether this instance is using default address or not.
+
+ @retval None
+**/
+VOID
+EFIAPI
+NetLibCreateIPv4DPathNode (
+ IN OUT IPv4_DEVICE_PATH *Node,
+ IN EFI_HANDLE Controller,
+ IN IP4_ADDR LocalIp,
+ IN UINT16 LocalPort,
+ IN IP4_ADDR RemoteIp,
+ IN UINT16 RemotePort,
+ IN UINT16 Protocol,
+ IN BOOLEAN UseDefaultAddress
+ );
+
+/**
+ Find the UNDI/SNP handle from controller and protocol GUID.
+ For example, IP will open a MNP child to transmit/receive
+ packets, when MNP is stopped, IP should also be stopped. IP
+ needs to find its own private data which is related the IP's
+ service binding instance that is install on UNDI/SNP handle.
+ Now, the controller is either a MNP or ARP child handle. But
+ IP opens these handle BY_DRIVER, use that info, we can get the
+ UNDI/SNP handle.
+
+ @param Controller Then protocol handle to check
+ @param ProtocolGuid The protocol that is related with the handle.
+
+ @return The UNDI/SNP handle or NULL.
+
+**/
EFI_HANDLE
+EFIAPI
NetLibGetNicHandle (
IN EFI_HANDLE Controller,
IN EFI_GUID *ProtocolGuid
);
-typedef
+/**
+ Add a Deferred Procedure Call to the end of the DPC queue.
+
+ @param DpcTpl The EFI_TPL that the DPC should be invoked.
+ @param DpcProcedure Pointer to the DPC's function.
+ @param DpcContext Pointer to the DPC's context. Passed to DpcProcedure
+ when DpcProcedure is invoked.
+
+ @retval EFI_SUCCESS The DPC was queued.
+ @retval EFI_INVALID_PARAMETER DpcTpl is not a valid EFI_TPL.
+ DpcProcedure is NULL.
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources available to
+ add the DPC to the queue.
+
+**/
EFI_STATUS
-(EFIAPI *NET_LIB_DRIVER_UNLOAD) (
- IN EFI_HANDLE ImageHandle
+EFIAPI
+NetLibQueueDpc (
+ IN EFI_TPL DpcTpl,
+ IN EFI_DPC_PROCEDURE DpcProcedure,
+ IN VOID *DpcContext OPTIONAL
);
+/**
+ Add a Deferred Procedure Call to the end of the DPC queue.
+
+ @retval EFI_SUCCESS One or more DPCs were invoked.
+ @retval EFI_NOT_FOUND No DPCs were invoked.
+
+**/
EFI_STATUS
EFIAPI
-NetLibDefaultUnload (
- IN EFI_HANDLE ImageHandle
+NetLibDispatchDpc (
+ VOID
);
+/**
+ This is the default unload handle for all the network drivers.
+
+ @param ImageHandle The drivers' driver image.
+
+ @retval EFI_SUCCESS The image is unloaded.
+ @retval Others Failed to unload the image.
+
+**/
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
+EFIAPI
+NetLibDefaultUnload (
+ IN EFI_HANDLE ImageHandle
);
-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 {
+typedef enum {
//
//Various signatures
//
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
-};
+ NET_VECTOR_OWN_FIRST = 0x01 // We allocated the 1st block in the vector
+} NET_SIGNATURE_TYPE;
#define NET_CHECK_SIGNATURE(PData, SIGNATURE) \
ASSERT (((PData) != NULL) && ((PData)->Signature == (SIGNATURE)))
typedef struct {
UINT32 Signature;
INTN RefCnt;
- NET_LIST_ENTRY List; // The List this NET_BUF is on
+ 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
typedef struct {
UINT32 Signature;
INTN RefCnt;
- NET_LIST_ENTRY List; // The List this buffer queue is on
+ LIST_ENTRY List; // The List this buffer queue is on
- NET_LIST_ENTRY BufList; // list of queued buffers
+ 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;
#define NET_TAILSPACE(BlockOp) \
(UINTN)((BlockOp)->BlockTail - (BlockOp)->Tail)
+/**
+ Allocate a single block NET_BUF. Upon allocation, all the
+ free space is in the tail room.
+
+ @param Len The length of the block.
+
+ @retval * Pointer to the allocated NET_BUF. If NULL the
+ allocation failed due to resource limit.
+
+**/
NET_BUF *
+EFIAPI
NetbufAlloc (
IN UINT32 Len
);
+/**
+ Free the buffer and its associated NET_VECTOR.
+
+ @param Nbuf Pointer to the NET_BUF to be freed.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufFree (
IN NET_BUF *Nbuf
);
+/**
+ Get the position of some byte in the net buffer. This can be used
+ to, for example, retrieve the IP header in the packet. It also
+ returns the fragment that contains the byte which is used mainly by
+ the buffer implementation itself.
+
+ @param Nbuf Pointer to the net buffer.
+ @param Offset The index or offset of the byte
+ @param Index Index of the fragment that contains the block
+
+ @retval * Pointer to the nth byte of data in the net buffer.
+ If NULL, there is no such data in the net buffer.
+**/
UINT8 *
+EFIAPI
NetbufGetByte (
IN NET_BUF *Nbuf,
IN UINT32 Offset,
OUT UINT32 *Index OPTIONAL
);
+/**
+ Create a copy of NET_BUF that share the associated NET_DATA.
+
+ @param Nbuf Pointer to the net buffer to be cloned.
+
+ @retval * Pointer to the cloned net buffer.
+
+**/
NET_BUF *
+EFIAPI
NetbufClone (
IN NET_BUF *Nbuf
);
+/**
+ Create a duplicated copy of Nbuf, data is copied. Also leave some
+ head space before the data.
+
+ @param Nbuf Pointer to the net buffer to be cloned.
+ @param Duplicate Pointer to the net buffer to duplicate to, if NULL
+ a new net buffer is allocated.
+ @param HeadSpace Length of the head space to reserve
+
+ @retval * Pointer to the duplicated net buffer.
+
+**/
NET_BUF *
+EFIAPI
NetbufDuplicate (
IN NET_BUF *Nbuf,
IN NET_BUF *Duplicate OPTIONAL,
IN UINT32 HeadSpace
);
+/**
+ Create a NET_BUF structure which contains Len byte data of
+ Nbuf starting from Offset. A new NET_BUF structure will be
+ created but the associated data in NET_VECTOR is shared.
+ This function exists to do IP packet fragmentation.
+
+ @param Nbuf Pointer to the net buffer to be cloned.
+ @param Offset Starting point of the data to be included in new
+ buffer.
+ @param Len How many data to include in new data
+ @param HeadSpace How many bytes of head space to reserve for
+ protocol header
+
+ @retval * Pointer to the cloned net buffer.
+
+**/
NET_BUF *
+EFIAPI
NetbufGetFragment (
IN NET_BUF *Nbuf,
IN UINT32 Offset,
IN UINT32 HeadSpace
);
+/**
+ Reserve some space in the header room of the buffer.
+ Upon allocation, all the space are in the tail room
+ of the buffer. Call this function to move some space
+ to the header room. This function is quite limited in
+ that it can only reserver space from the first block
+ of an empty NET_BUF not built from the external. But
+ it should be enough for the network stack.
+
+ @param Nbuf Pointer to the net buffer.
+ @param Len The length of buffer to be reserverd.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufReserve (
IN NET_BUF *Nbuf,
IN UINT32 Len
);
+/**
+ Allocate some space from the header or tail of the buffer.
+
+ @param Nbuf Pointer to the net buffer.
+ @param Len The length of the buffer to be allocated.
+ @param FromHead The flag to indicate whether reserve the data from
+ head or tail. TRUE for from head, and FALSE for
+ from tail.
+
+ @retval * Pointer to the first byte of the allocated buffer.
+
+**/
UINT8 *
+EFIAPI
NetbufAllocSpace (
IN NET_BUF *Nbuf,
IN UINT32 Len,
IN BOOLEAN FromHead
);
+/**
+ Trim some data from the header or tail of the buffer.
+
+ @param Nbuf Pointer to the net buffer.
+ @param Len The length of the data to be trimmed.
+ @param FromHead The flag to indicate whether trim data from head or
+ tail. TRUE for from head, and FALSE for from tail.
+
+ @retval UINTN Length of the actually trimmed data.
+
+**/
UINT32
+EFIAPI
NetbufTrim (
IN NET_BUF *Nbuf,
IN UINT32 Len,
IN BOOLEAN FromHead
);
+/**
+ Copy the data from the specific offset to the destination.
+
+ @param Nbuf Pointer to the net buffer.
+ @param Offset The sequence number of the first byte to copy.
+ @param Len Length of the data to copy.
+ @param Dest The destination of the data to copy to.
+
+ @retval UINTN The length of the copied data.
+
+**/
UINT32
+EFIAPI
NetbufCopy (
IN NET_BUF *Nbuf,
IN UINT32 Offset,
IN UINT8 *Dest
);
+/**
+ Build a NET_BUF from external blocks.
+
+ @param ExtFragment Pointer to the data block.
+ @param ExtNum The number of the data block.
+ @param HeadSpace The head space to be reserved.
+ @param HeadLen The length of the protocol header, This function
+ will pull that number of data into a linear block.
+ @param ExtFree Pointer to the caller provided free function.
+ @param Arg The argument passed to ExtFree when ExtFree is
+ called.
+
+ @retval * Pointer to the net buffer built from the data
+ blocks.
+
+**/
NET_BUF *
+EFIAPI
NetbufFromExt (
IN NET_FRAGMENT *ExtFragment,
IN UINT32 ExtNum,
IN VOID *Arg OPTIONAL
);
+/**
+ Build a fragment table to contain the fragments in the
+ buffer. This is the opposite of the NetbufFromExt.
+
+ @param Nbuf Point to the net buffer
+ @param ExtFragment Pointer to the data block.
+ @param ExtNum The number of the data block.
+
+ @retval EFI_BUFFER_TOO_SMALL The number of non-empty block is bigger than ExtNum
+ @retval EFI_SUCCESS Fragment table built.
+
+**/
EFI_STATUS
+EFIAPI
NetbufBuildExt (
IN NET_BUF *Nbuf,
IN NET_FRAGMENT *ExtFragment,
IN UINT32 *ExtNum
);
+/**
+ Build a NET_BUF from a list of NET_BUF.
+
+ @param BufList A List of NET_BUF.
+ @param HeadSpace The head space to be reserved.
+ @param HeaderLen The length of the protocol header, This function
+ will pull that number of data into a linear block.
+ @param ExtFree Pointer to the caller provided free function.
+ @param Arg The argument passed to ExtFree when ExtFree is
+ called.
+
+ @retval * Pointer to the net buffer built from the data
+ blocks.
+
+**/
NET_BUF *
+EFIAPI
NetbufFromBufList (
- IN NET_LIST_ENTRY *BufList,
+ IN LIST_ENTRY *BufList,
IN UINT32 HeadSpace,
IN UINT32 HeaderLen,
IN NET_VECTOR_EXT_FREE ExtFree,
IN VOID *Arg OPTIONAL
);
+/**
+ Free a list of net buffers.
+
+ @param Head Pointer to the head of linked net buffers.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufFreeList (
- IN NET_LIST_ENTRY *Head
+ IN LIST_ENTRY *Head
);
+/**
+ Initiate the net buffer queue.
+
+ @param NbufQue Pointer to the net buffer queue to be initiated.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufQueInit (
IN NET_BUF_QUEUE *NbufQue
);
+/**
+ Allocate an initialized net buffer queue.
+
+ None.
+
+ @retval * Pointer to the allocated net buffer queue.
+
+**/
NET_BUF_QUEUE *
+EFIAPI
NetbufQueAlloc (
VOID
);
+/**
+ Free a net buffer queue.
+
+ @param NbufQue Poitner to the net buffer queue to be freed.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufQueFree (
IN NET_BUF_QUEUE *NbufQue
);
+/**
+ Remove a net buffer from head in the specific queue.
+
+ @param NbufQue Pointer to the net buffer queue.
+
+ @retval * Pointer to the net buffer removed from the specific
+ queue.
+
+**/
NET_BUF *
+EFIAPI
NetbufQueRemove (
IN NET_BUF_QUEUE *NbufQue
);
+/**
+ Append a buffer to the end of the queue.
+
+ @param NbufQue Pointer to the net buffer queue.
+ @param Nbuf Pointer to the net buffer to be appended.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufQueAppend (
IN NET_BUF_QUEUE *NbufQue,
IN NET_BUF *Nbuf
);
+/**
+ Copy some data from the buffer queue to the destination.
+
+ @param NbufQue Pointer to the net buffer queue.
+ @param Offset The sequence number of the first byte to copy.
+ @param Len Length of the data to copy.
+ @param Dest The destination of the data to copy to.
+
+ @retval UINTN The length of the copied data.
+
+**/
UINT32
+EFIAPI
NetbufQueCopy (
IN NET_BUF_QUEUE *NbufQue,
IN UINT32 Offset,
IN UINT8 *Dest
);
+/**
+ Trim some data from the queue header, release the buffer if
+ whole buffer is trimmed.
+
+ @param NbufQue Pointer to the net buffer queue.
+ @param Len Length of the data to trim.
+
+ @retval UINTN The length of the data trimmed.
+
+**/
UINT32
+EFIAPI
NetbufQueTrim (
IN NET_BUF_QUEUE *NbufQue,
IN UINT32 Len
);
+
+/**
+ Flush the net buffer queue.
+
+ @param NbufQue Pointer to the queue to be flushed.
+
+ @return None.
+
+**/
VOID
+EFIAPI
NetbufQueFlush (
IN NET_BUF_QUEUE *NbufQue
);
+/**
+ Compute checksum for a bulk of data.
+
+ @param Bulk Pointer to the data.
+ @param Len Length of the data, in bytes.
+
+ @retval UINT16 The computed checksum.
+
+**/
UINT16
+EFIAPI
NetblockChecksum (
IN UINT8 *Bulk,
IN UINT32 Len
);
+/**
+ Add two checksums.
+
+ @param Checksum1 The first checksum to be added.
+ @param Checksum2 The second checksum to be added.
+
+ @retval UINT16 The new checksum.
+
+**/
UINT16
+EFIAPI
NetAddChecksum (
IN UINT16 Checksum1,
IN UINT16 Checksum2
);
+/**
+ Compute the checksum for a NET_BUF.
+
+ @param Nbuf Pointer to the net buffer.
+
+ @retval UINT16 The computed checksum.
+
+**/
UINT16
+EFIAPI
NetbufChecksum (
IN NET_BUF *Nbuf
);
+/**
+ Compute the checksum for TCP/UDP pseudo header.
+ Src, Dst are in network byte order. and Len is
+ in host byte order.
+
+ @param Src The source address of the packet.
+ @param Dst The destination address of the packet.
+ @param Proto The protocol type of the packet.
+ @param Len The length of the packet.
+
+ @retval UINT16 The computed checksum.
+
+**/
UINT16
+EFIAPI
NetPseudoHeadChecksum (
IN IP4_ADDR Src,
IN IP4_ADDR Dst,
IN UINT16 Len
);
-//\r
-// The debug level definition. This value is also used as the\r
-// syslog's servity 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
-\r
-#ifdef EFI_NETWORK_STACK_DEBUG\r
-\r
-//\r
-// The debug output expects the ASCII format string, Use %a to print ASCII\r
-// string, and %s to print UNICODE string. PrintArg must be enclosed in ().\r
-// For example: NET_DEBUG_TRACE ("Tcp", ("State transit to %a\n", Name));\r
-//\r
-#define NET_DEBUG_TRACE(Module, PrintArg) \\r
- NetDebugOutput ( \\r
- NETDEBUG_LEVEL_TRACE, \\r
- Module, \\r
- __FILE__, \\r
- __LINE__, \\r
- NetDebugASPrint PrintArg \\r
- )\r
-\r
-#define NET_DEBUG_WARNING(Module, PrintArg) \\r
- NetDebugOutput ( \\r
- NETDEBUG_LEVEL_WARNING, \\r
- Module, \\r
- __FILE__, \\r
- __LINE__, \\r
- NetDebugASPrint PrintArg \\r
- )\r
-\r
-#define NET_DEBUG_ERROR(Module, PrintArg) \\r
- NetDebugOutput ( \\r
- NETDEBUG_LEVEL_ERROR, \\r
- Module, \\r
- __FILE__, \\r
- __LINE__, \\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
-UINT8 *\r
-NetDebugASPrint (\r
- UINT8 *Format,\r
- ...\r
- );\r
-\r
-EFI_STATUS\r
-NetDebugOutput (\r
- UINT32 Level,\r
- UINT8 *Module,\r
- UINT8 *File,\r
- UINT32 Line,\r
- UINT8 *Message\r
- );\r
-\r
-//\r
-// Network debug message is sent out as syslog.\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
projects / mirror_edk2.git / blobdiff