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1. update to use 1 EFI Variable per NIC (instead of converge all NIC configuration into one EFI Variable), this remove the limitation that max NIC configuration will depend on PcdMaxVariableSize.

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2. remove unnecessary Unload function EfiIp4ConfigUnload (use default Unload function NetLibDefaultUnload instead), remove global array for NIC handle tracking since it’s driver model driver.
3. add Ip4Config Variable reclaim to HiiConfigAccess.RouteConfig() to remove variable for NIC which has been removed from the system.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10628 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xdu2
2010-07-05 02:03:20 +00:00
parent 8df3a682fe
commit 74df5026b2
9 changed files with 278 additions and 614 deletions
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85
MdeModulePkg/Universal/Network/Ip4ConfigDxe/NicIp4Variable.h
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@@ -1,7 +1,7 @@
/** @file
Routines used to operate the Ip4 configure variable.
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 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<BR>
@@ -15,29 +15,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#ifndef _NIC_IP4_VARIABLE_H_
#define _NIC_IP4_VARIABLE_H_
#include <Uefi.h>
#include <Guid/NicIp4ConfigNvData.h>
#include <Library/NetLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
///
/// IP4_CONFIG_VARIABLE is the EFI variable to
/// save the configuration. IP4_CONFIG_VARIABLE is
/// of variable length.
///
typedef struct {
UINT32 Len; ///< Total length of the variable
UINT16 CheckSum; ///< CheckSum, the same as IP4 head checksum
UINT32 Count; ///< Number of NIC_IP4_CONFIG_INFO follows
NIC_IP4_CONFIG_INFO ConfigInfo;
} IP4_CONFIG_VARIABLE;
//
// Return the size of NIC_IP4_CONFIG_INFO and EFI_IP4_IPCONFIG_DATA.
// They are of variable size
@@ -73,78 +50,48 @@ Ip4ConfigIsValid (
/**
Read the ip4 configure variable from the EFI variable.
None
@param Instance The IP4 CONFIG instance.
@return The IP4 configure read if it is there and is valid, otherwise NULL
@return The IP4 configure read if it is there and is valid, otherwise NULL.
**/
IP4_CONFIG_VARIABLE *
NIC_IP4_CONFIG_INFO *
Ip4ConfigReadVariable (
VOID
IN IP4_CONFIG_INSTANCE *Instance
);
/**
Write the IP4 configure variable to the NVRAM. If Config
is NULL, remove the variable.
@param Config The IP4 configure data to write
@param Instance The IP4 CONFIG instance.
@param NicConfig The IP4 configure data to write.
@retval EFI_SUCCESS The variable is written to the NVRam
@retval EFI_SUCCESS The variable is written to the NVRam.
@retval Others Failed to write the variable.
**/
EFI_STATUS
Ip4ConfigWriteVariable (
IN IP4_CONFIG_VARIABLE *Config OPTIONAL
IN IP4_CONFIG_INSTANCE *Instance,
IN NIC_IP4_CONFIG_INFO *NicConfig OPTIONAL
);
/**
Locate the IP4 configure parameters from the variable.If a
configuration is found, copy it to a newly allocated block
of memory to avoid the alignment problem. Caller should
release the memory after use.
@param Variable The IP4 configure variable to search in
@param NicAddr The interface address to check
@return The point to the NIC's IP4 configure info if it is found
in the IP4 variable, otherwise NULL.
Reclaim Ip4Config Variables for NIC which has been removed from the platform.
**/
NIC_IP4_CONFIG_INFO *
Ip4ConfigFindNicVariable (
IN IP4_CONFIG_VARIABLE *Variable,
IN NIC_ADDR *NicAddr
VOID
Ip4ConfigReclaimVariable (
VOID
);
/**
Modify the configuration parameter for the NIC in the variable.
If Config is NULL, old configuration will be remove from the new
variable. Otherwise, append it or replace the old one.
Fix the RouteTable pointer in an EFI_IP4_IPCONFIG_DATA structure.
@param Variable The IP4 variable to change
@param NicAddr The interface to search
@param Config The new configuration parameter (NULL to remove the old)
@return The new IP4_CONFIG_VARIABLE variable if the new variable has at
least one NIC configure and no EFI_OUT_OF_RESOURCES failure.
Return NULL either because failed to locate memory for new variable
or the only NIC configure is removed from the Variable.
**/
IP4_CONFIG_VARIABLE *
Ip4ConfigModifyVariable (
IN IP4_CONFIG_VARIABLE *Variable OPTIONAL,
IN NIC_ADDR *NicAddr,
IN NIC_IP4_CONFIG_INFO *Config OPTIONAL
);
/**
Fix the RouteTable pointer in an EFI_IP4_IPCONFIG_DATA structure.
The pointer is set to be immediately follow the ConfigData if there're entries
in the RouteTable. Otherwise it is set to NULL.
@param ConfigData The IP4 IP configure data.
**/