diff options
Diffstat (limited to 'NetworkPkg/Dhcp6Dxe/Dhcp6Utility.h')
| -rw-r--r-- | NetworkPkg/Dhcp6Dxe/Dhcp6Utility.h | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/NetworkPkg/Dhcp6Dxe/Dhcp6Utility.h b/NetworkPkg/Dhcp6Dxe/Dhcp6Utility.h new file mode 100644 index 0000000..62985a3 --- /dev/null +++ b/NetworkPkg/Dhcp6Dxe/Dhcp6Utility.h @@ -0,0 +1,340 @@ +/** @file
+ Dhcp6 support functions declaration.
+
+ Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+
+ 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.
+
+**/
+
+#ifndef __EFI_DHCP6_UTILITY_H__
+#define __EFI_DHCP6_UTILITY_H__
+
+
+#define DHCP6_10_BIT_MASK 0x3ff
+
+/**
+ Generate client Duid in the format of Duid-llt.
+
+ @param[in] Mode The pointer to the mode of SNP.
+
+ @retval NULL if failed to generate client Id.
+ @retval Others The pointer to the new client id.
+
+**/
+EFI_DHCP6_DUID *
+Dhcp6GenerateClientId (
+ IN EFI_SIMPLE_NETWORK_MODE *Mode
+ );
+
+/**
+ Copy the Dhcp6 configure data.
+
+ @param[in] DstCfg The pointer to the destination configure data.
+ @param[in] SorCfg The pointer to the source configure data.
+
+ @retval EFI_SUCCESS Copy the content from SorCfg from DstCfg successfully.
+ @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
+
+**/
+EFI_STATUS
+Dhcp6CopyConfigData (
+ IN EFI_DHCP6_CONFIG_DATA *DstCfg,
+ IN EFI_DHCP6_CONFIG_DATA *SorCfg
+ );
+
+/**
+ Clean up the configure data.
+
+ @param[in, out] CfgData The pointer to the configure data.
+
+**/
+VOID
+Dhcp6CleanupConfigData (
+ IN OUT EFI_DHCP6_CONFIG_DATA *CfgData
+ );
+
+/**
+ Clean up the mode data.
+
+ @param[in, out] ModeData The pointer to the mode data.
+
+**/
+VOID
+Dhcp6CleanupModeData (
+ IN OUT EFI_DHCP6_MODE_DATA *ModeData
+ );
+
+/**
+ Calculate the expire time by the algorithm defined in rfc.
+
+ @param[in] Base The base value of the time.
+ @param[in] IsFirstRt If TRUE, it is the first time to calculate expire time.
+ @param[in] NeedSigned If TRUE, the the signed factor is needed.
+
+ @return Expire The calculated result for the new expire time.
+
+**/
+UINT32
+Dhcp6CalculateExpireTime (
+ IN UINT32 Base,
+ IN BOOLEAN IsFirstRt,
+ IN BOOLEAN NeedSigned
+ );
+
+/**
+ Calculate the lease time by the algorithm defined in rfc.
+
+ @param[in] IaCb The pointer to the Ia control block.
+
+**/
+VOID
+Dhcp6CalculateLeaseTime (
+ IN DHCP6_IA_CB *IaCb
+ );
+
+/**
+ Check whether the addresses are all included by the configured Ia.
+
+ @param[in] Ia The pointer to the Ia.
+ @param[in] AddressCount The number of addresses.
+ @param[in] Addresses The pointer to the addresses buffer.
+
+ @retval EFI_SUCCESS The addresses are all included by the configured IA.
+ @retval EFI_NOT_FOUND The addresses are not included by the configured IA.
+
+**/
+EFI_STATUS
+Dhcp6CheckAddress (
+ IN EFI_DHCP6_IA *Ia,
+ IN UINT32 AddressCount,
+ IN EFI_IPv6_ADDRESS *Addresses
+ );
+
+/**
+ Deprive the addresses from current Ia, and generate another eliminated Ia.
+
+ @param[in] Ia The pointer to the Ia.
+ @param[in] AddressCount The number of addresses.
+ @param[in] Addresses The pointer to the addresses buffer.
+
+ @retval NULL If failed to generate the deprived Ia.
+ @retval others The pointer to the deprived Ia.
+
+**/
+EFI_DHCP6_IA *
+Dhcp6DepriveAddress (
+ IN EFI_DHCP6_IA *Ia,
+ IN UINT32 AddressCount,
+ IN EFI_IPv6_ADDRESS *Addresses
+ );
+
+/**
+ The dummy ext buffer free callback routine.
+
+ @param[in] Arg The pointer to the parameter.
+
+**/
+VOID
+EFIAPI
+Dhcp6DummyExtFree (
+ IN VOID *Arg
+ );
+
+/**
+ The callback routine once message transmitted.
+
+ @param[in] Udp6Wrap The pointer to the received net buffer.
+ @param[in] EndPoint The pointer to the udp end point.
+ @param[in] IoStatus The return status from udp io.
+ @param[in] Context The opaque parameter to the function.
+
+**/
+VOID
+EFIAPI
+Dhcp6OnTransmitted (
+ IN NET_BUF *Wrap,
+ IN UDP_END_POINT *EndPoint,
+ IN EFI_STATUS IoStatus,
+ IN VOID *Context
+ );
+
+/**
+ Append the appointed option to the buf, and move the buf to the end.
+
+ @param[in, out] Buf The pointer to buffer.
+ @param[in] OptType The option type.
+ @param[in] OptLen The lenght of option content.s
+ @param[in] Data The pointer to the option content.
+
+ @return Buf The position to append the next option.
+
+**/
+UINT8 *
+Dhcp6AppendOption (
+ IN OUT UINT8 *Buf,
+ IN UINT16 OptType,
+ IN UINT16 OptLen,
+ IN UINT8 *Data
+ );
+
+/**
+ Append the Ia option to Buf, and move Buf to the end.
+
+ @param[in, out] Buf The pointer to the position to append.
+ @param[in] Ia The pointer to the Ia.
+ @param[in] T1 The time of T1.
+ @param[in] T2 The time of T2.
+
+ @return Buf The position to append the next Ia option.
+
+**/
+UINT8 *
+Dhcp6AppendIaOption (
+ IN OUT UINT8 *Buf,
+ IN EFI_DHCP6_IA *Ia,
+ IN UINT32 T1,
+ IN UINT32 T2
+ );
+
+/**
+ Append the appointed Elapsed time option to Buf, and move Buf to the end.
+
+ @param[in, out] Buf The pointer to the position to append.
+ @param[in] Instance The pointer to the Dhcp6 instance.
+ @param[out] Elapsed The pointer to the elapsed time value in
+ the generated packet.
+
+ @return Buf The position to append the next Ia option.
+
+**/
+UINT8 *
+Dhcp6AppendETOption (
+ IN OUT UINT8 *Buf,
+ IN DHCP6_INSTANCE *Instance,
+ OUT UINT16 **Elapsed
+ );
+
+/**
+ Set the elapsed time based on the given instance and the pointer to the
+ elapsed time option.
+
+ @param[in] Elapsed The pointer to the position to append.
+ @param[in] Instance The pointer to the Dhcp6 instance.
+**/
+VOID
+SetElapsedTime (
+ IN UINT16 *Elapsed,
+ IN DHCP6_INSTANCE *Instance
+ );
+
+/**
+ Seek the address of the first byte of the option header.
+
+ @param[in] Buf The pointer to buffer.
+ @param[in] SeekLen The length to seek.
+ @param[in] OptType The option type.
+
+ @retval NULL If failed to seek the option.
+ @retval others The position to the option.
+
+**/
+UINT8 *
+Dhcp6SeekOption (
+ IN UINT8 *Buf,
+ IN UINT32 SeekLen,
+ IN UINT16 OptType
+ );
+
+/**
+ Seek the address of the first byte of the Ia option header.
+
+ @param[in] Buf The pointer to the buffer.
+ @param[in] SeekLen The length to seek.
+ @param[in] IaDesc The pointer to the Ia descriptor.
+
+ @retval NULL If failed to seek the Ia option.
+ @retval others The position to the Ia option.
+
+**/
+UINT8 *
+Dhcp6SeekIaOption (
+ IN UINT8 *Buf,
+ IN UINT32 SeekLen,
+ IN EFI_DHCP6_IA_DESCRIPTOR *IaDesc
+ );
+
+/**
+ Parse the address option and update the address info.
+
+ @param[in] IaInnerOpt The pointer to the buffer.
+ @param[in] IaInnerLen The length to parse.
+ @param[out] AddrNum The number of addresses.
+ @param[in, out] AddrBuf The pointer to the address buffer.
+
+**/
+VOID
+Dhcp6ParseAddrOption (
+ IN UINT8 *IaInnerOpt,
+ IN UINT16 IaInnerLen,
+ OUT UINT32 *AddrNum,
+ IN OUT EFI_DHCP6_IA_ADDRESS *AddrBuf
+ );
+
+/**
+ Create a control blcok for the Ia according to the corresponding options.
+
+ @param[in] Instance The pointer to DHCP6 Instance.
+ @param[in] IaInnerOpt The pointer to the inner options in the Ia option.
+ @param[in] IaInnerLen The length of all the inner options in the Ia option.
+ @param[in] T1 T1 time in the Ia option.
+ @param[in] T2 T2 time in the Ia option.
+
+ @retval EFI_NOT_FOUND No valid IA option is found.
+ @retval EFI_SUCCESS Create an IA control block successfully.
+ @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
+
+**/
+EFI_STATUS
+Dhcp6GenerateIaCb (
+ IN DHCP6_INSTANCE *Instance,
+ IN UINT8 *IaInnerOpt,
+ IN UINT16 IaInnerLen,
+ IN UINT32 T1,
+ IN UINT32 T2
+ );
+
+
+/**
+ Cache the current IA configuration information.
+
+ @param[in] Instance The pointer to DHCP6 Instance.
+
+ @retval EFI_SUCCESS Cache the current IA successfully.
+ @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
+
+**/
+EFI_STATUS
+Dhcp6CacheIa (
+ IN DHCP6_INSTANCE *Instance
+ );
+
+
+/**
+ Append CacheIa to the currrent IA. Meanwhile, clear CacheIa.ValidLifetime to 0.
+
+ @param[in] Instance The pointer to DHCP6 instance.
+
+**/
+VOID
+Dhcp6AppendCacheIa (
+ IN DHCP6_INSTANCE *Instance
+ );
+
+#endif
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