/** @file\r
+ Routines used to operate the Ip4 configure variable.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation \r
+Copyright (c) 2006 - 2009, Intel Corporation.<BR> \r
All rights reserved. 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\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
-Module Name:\r
-\r
- NicIp4Variable.h\r
-\r
-Abstract:\r
-\r
- Routines used to operate the Ip4 configure variable\r
-\r
-\r
**/\r
\r
#ifndef _NIC_IP4_VARIABLE_H_\r
#define _NIC_IP4_VARIABLE_H_\r
\r
-\r
-#include <Protocol/NicIp4Config.h>\r
+#include <Uefi.h>\r
+\r
+#include <Guid/NicIp4ConfigNvData.h>\r
+\r
+#include <Library/NetLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/UefiRuntimeServicesTableLib.h>\r
+\r
+///\r
+/// IP4_CONFIG_VARIABLE is the EFI variable to\r
+/// save the configuration. IP4_CONFIG_VARIABLE is\r
+/// of variable length.\r
+///\r
+typedef struct {\r
+ UINT32 Len; ///< Total length of the variable\r
+ UINT16 CheckSum; ///< CheckSum, the same as IP4 head checksum\r
+ UINT32 Count; ///< Number of NIC_IP4_CONFIG_INFO follows\r
+ NIC_IP4_CONFIG_INFO ConfigInfo;\r
+} IP4_CONFIG_VARIABLE;\r
\r
//\r
// Return the size of NIC_IP4_CONFIG_INFO and EFI_IP4_IPCONFIG_DATA.\r
(((Nic1)->Type == (Nic2)->Type) && ((Nic1)->Len == (Nic2)->Len) && \\r
NET_MAC_EQUAL (&(Nic1)->MacAddr, &(Nic2)->MacAddr, (Nic1)->Len))\r
\r
+/**\r
+ Check whether the configure parameter is valid.\r
+\r
+ @param NicConfig The configure parameter to check\r
+\r
+ @return TRUE if the parameter is valid for the interface, otherwise FALSE.\r
+\r
+**/\r
BOOLEAN\r
Ip4ConfigIsValid (\r
IN NIC_IP4_CONFIG_INFO *NicConfig\r
);\r
\r
+/**\r
+ Read the ip4 configure variable from the EFI variable.\r
+\r
+ None\r
+\r
+ @return The IP4 configure read if it is there and is valid, otherwise NULL\r
+\r
+**/\r
IP4_CONFIG_VARIABLE *\r
Ip4ConfigReadVariable (\r
VOID\r
);\r
\r
+/**\r
+ Write the IP4 configure variable to the NVRAM. If Config\r
+ is NULL, remove the variable.\r
+\r
+ @param Config The IP4 configure data to write\r
+\r
+ @retval EFI_SUCCESS The variable is written to the NVRam\r
+ @retval Others Failed to write the variable.\r
+\r
+**/\r
EFI_STATUS\r
Ip4ConfigWriteVariable (\r
- IN IP4_CONFIG_VARIABLE *Config OPTIONAL\r
+ IN IP4_CONFIG_VARIABLE *Config OPTIONAL\r
);\r
\r
+/**\r
+ Locate the IP4 configure parameters from the variable.If a\r
+ configuration is found, copy it to a newly allocated block\r
+ of memory to avoid the alignment problem. Caller should\r
+ release the memory after use.\r
+\r
+ @param Variable The IP4 configure variable to search in\r
+ @param NicAddr The interface address to check\r
+\r
+ @return The point to the NIC's IP4 configure info if it is found\r
+ in the IP4 variable, otherwise NULL.\r
+\r
+**/\r
NIC_IP4_CONFIG_INFO *\r
Ip4ConfigFindNicVariable (\r
IN IP4_CONFIG_VARIABLE *Variable,\r
IN NIC_ADDR *NicAddr\r
);\r
\r
+/**\r
+ Modify the configuration parameter for the NIC in the variable.\r
+ If Config is NULL, old configuration will be remove from the new\r
+ variable. Otherwise, append it or replace the old one.\r
+\r
+ @param Variable The IP4 variable to change\r
+ @param NicAddr The interface to search\r
+ @param Config The new configuration parameter (NULL to remove the old)\r
+\r
+ @return The new IP4_CONFIG_VARIABLE variable if the new variable has at\r
+ least one NIC configure and no EFI_OUT_OF_RESOURCES failure.\r
+ Return NULL either because failed to locate memory for new variable\r
+ or the only NIC configure is removed from the Variable.\r
+\r
+**/\r
IP4_CONFIG_VARIABLE *\r
Ip4ConfigModifyVariable (\r
- IN IP4_CONFIG_VARIABLE *Variable, OPTIONAL\r
+ IN IP4_CONFIG_VARIABLE *Variable OPTIONAL,\r
IN NIC_ADDR *NicAddr,\r
IN NIC_IP4_CONFIG_INFO *Config OPTIONAL\r
);\r
\r
+/**\r
+ Fix the RouteTable pointer in an EFI_IP4_IPCONFIG_DATA structure. \r
+ \r
+ The pointer is set to be immediately follow the ConfigData if there're entries\r
+ in the RouteTable. Otherwise it is set to NULL.\r
+ \r
+ @param ConfigData The IP4 IP configure data.\r
+\r
+**/\r
VOID\r
Ip4ConfigFixRouteTablePointer (\r
- IN EFI_IP4_IPCONFIG_DATA *ConfigData\r
+ IN OUT EFI_IP4_IPCONFIG_DATA *ConfigData\r
);\r
\r
#endif\r
+\r
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