/** @file\r
\r
-Copyright (c) 2005 - 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
-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
+Copyright (c) 2005 - 2017, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
\r
/**\r
- Set the Ip4 variable data.\r
- \r
- Save the list of all of the IPv4 addresses and subnet masks that are currently\r
- being used to volatile variable storage.\r
+ Validate that Ip/Netmask pair is OK to be used as station\r
+ address. Only continuous netmasks are supported. and check\r
+ that StationAddress is a unicast address on the newtwork.\r
\r
- @param[in] IpSb Ip4 service binding instance\r
+ @param[in] Ip The IP address to validate.\r
+ @param[in] Netmask The netmaks of the IP.\r
\r
- @retval EFI_SUCCESS Successfully set variable.\r
- @retval EFI_OUT_OF_RESOURCES There are not enough resources to set the variable.\r
- @retval other Set variable failed.\r
+ @retval TRUE The Ip/Netmask pair is valid.\r
+ @retval FALSE The Ip/Netmask pair is invalid.\r
\r
**/\r
-EFI_STATUS\r
-Ip4SetVariableData (\r
- IN IP4_SERVICE *IpSb\r
+BOOLEAN\r
+Ip4StationAddressValid (\r
+ IN IP4_ADDR Ip,\r
+ IN IP4_ADDR Netmask\r
)\r
{\r
- UINT32 NumConfiguredInstance;\r
- LIST_ENTRY *Entry;\r
- UINTN VariableDataSize;\r
- EFI_IP4_VARIABLE_DATA *Ip4VariableData;\r
- EFI_IP4_ADDRESS_PAIR *Ip4AddressPair;\r
- IP4_PROTOCOL *IpInstance;\r
- CHAR16 *NewMacString;\r
- EFI_STATUS Status;\r
-\r
- NumConfiguredInstance = 0;\r
-\r
- //\r
- // Go through the children list to count the configured children.\r
- //\r
- NET_LIST_FOR_EACH (Entry, &IpSb->Children) {\r
- IpInstance = NET_LIST_USER_STRUCT_S (Entry, IP4_PROTOCOL, Link, IP4_PROTOCOL_SIGNATURE);\r
-\r
- if (IpInstance->State == IP4_STATE_CONFIGED) {\r
- NumConfiguredInstance++;\r
- }\r
- }\r
-\r
//\r
- // Calculate the size of the Ip4VariableData. As there may be no IP child,\r
- // we should add extra buffer for the address paris only if the number of configured\r
- // children is more than 1.\r
+ // Only support the station address with 0.0.0.0/0 to enable DHCP client.\r
//\r
- VariableDataSize = sizeof (EFI_IP4_VARIABLE_DATA);\r
-\r
- if (NumConfiguredInstance > 1) {\r
- VariableDataSize += sizeof (EFI_IP4_ADDRESS_PAIR) * (NumConfiguredInstance - 1);\r
+ if (Netmask == IP4_ALLZERO_ADDRESS) {\r
+ return (BOOLEAN) (Ip == IP4_ALLZERO_ADDRESS);\r
}\r
\r
- Ip4VariableData = AllocatePool (VariableDataSize);\r
- if (Ip4VariableData == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- Ip4VariableData->DriverHandle = IpSb->Image;\r
- Ip4VariableData->AddressCount = NumConfiguredInstance;\r
-\r
- Ip4AddressPair = &Ip4VariableData->AddressPairs[0];\r
-\r
//\r
- // Go through the children list to fill the configured children's address pairs.\r
+ // Only support the continuous net masks\r
//\r
- NET_LIST_FOR_EACH (Entry, &IpSb->Children) {\r
- IpInstance = NET_LIST_USER_STRUCT_S (Entry, IP4_PROTOCOL, Link, IP4_PROTOCOL_SIGNATURE);\r
-\r
- if (IpInstance->State == IP4_STATE_CONFIGED) {\r
- Ip4AddressPair->InstanceHandle = IpInstance->Handle;\r
- EFI_IP4 (Ip4AddressPair->Ip4Address) = NTOHL (IpInstance->Interface->Ip);\r
- EFI_IP4 (Ip4AddressPair->SubnetMask) = NTOHL (IpInstance->Interface->SubnetMask);\r
-\r
- Ip4AddressPair++;\r
- }\r
+ if (NetGetMaskLength (Netmask) == (IP4_MASK_MAX + 1)) {\r
+ return FALSE;\r
}\r
\r
//\r
- // Get the mac string.\r
+ // Station address can't be class D or class E address\r
//\r
- Status = NetLibGetMacString (IpSb->Controller, IpSb->Image, &NewMacString);\r
- if (EFI_ERROR (Status)) {\r
- goto ON_ERROR;\r
+ if (NetGetIpClass (Ip) > IP4_ADDR_CLASSC) {\r
+ return FALSE;\r
}\r
\r
- if (IpSb->MacString != NULL) {\r
- //\r
- // The variable is set already, we're going to update it.\r
- //\r
- if (StrCmp (IpSb->MacString, NewMacString) != 0) {\r
- //\r
- // The mac address is changed, delete the previous variable first.\r
- //\r
- gRT->SetVariable (\r
- IpSb->MacString,\r
- &gEfiIp4ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- 0,\r
- NULL\r
- );\r
- }\r
-\r
- FreePool (IpSb->MacString);\r
- }\r
-\r
- IpSb->MacString = NewMacString;\r
-\r
- Status = gRT->SetVariable (\r
- IpSb->MacString,\r
- &gEfiIp4ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- VariableDataSize,\r
- (VOID *) Ip4VariableData\r
- );\r
-\r
-ON_ERROR:\r
-\r
- FreePool (Ip4VariableData);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Clear the variable and free the resource.\r
-\r
- @param[in] IpSb Ip4 service binding instance\r
-\r
-**/\r
-VOID\r
-Ip4ClearVariableData (\r
- IN IP4_SERVICE *IpSb\r
- )\r
-{\r
- ASSERT (IpSb->MacString != NULL);\r
-\r
- gRT->SetVariable (\r
- IpSb->MacString,\r
- &gEfiIp4ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- 0,\r
- NULL\r
- );\r
-\r
- FreePool (IpSb->MacString);\r
- IpSb->MacString = NULL;\r
+ return NetIp4IsUnicast (Ip, Netmask);\r
}\r
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