/** @file\r
This file implement the EFI_DHCP4_PROTOCOL interface.\r
\r
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
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
DHCP_SERVICE *DhcpSb;\r
EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN *Token;\r
EFI_UDP4_CONFIG_DATA UdpConfigData;\r
- IP4_ADDR Ip;\r
+ IP4_ADDR ClientAddr;\r
+ IP4_ADDR Ip; \r
+ INTN Class; \r
+ IP4_ADDR SubnetMask;\r
\r
Instance = (DHCP_PROTOCOL *) Context;\r
DhcpSb = Instance->Service;\r
UdpConfigData.TimeToLive = 64;\r
UdpConfigData.DoNotFragment = TRUE;\r
\r
- Ip = HTONL (DhcpSb->ClientAddr);\r
+ ClientAddr = EFI_NTOHL (Token->Packet->Dhcp4.Header.ClientAddr);\r
+ Ip = HTONL (ClientAddr);\r
CopyMem (&UdpConfigData.StationAddress, &Ip, sizeof (EFI_IPv4_ADDRESS));\r
-\r
- Ip = HTONL (DhcpSb->Netmask);\r
+ \r
+ Class = NetGetIpClass (ClientAddr);\r
+ ASSERT (Class < IP4_ADDR_CLASSE);\r
+ SubnetMask = gIp4AllMasks[Class << 3];\r
+ Ip = HTONL (SubnetMask);\r
CopyMem (&UdpConfigData.SubnetMask, &Ip, sizeof (EFI_IPv4_ADDRESS));\r
\r
if ((Token->ListenPointCount == 0) || (Token->ListenPoints[0].ListenPort == 0)) {\r
//\r
if ((Head->OpCode != BOOTP_REPLY) ||\r
(Head->Xid != Token->Packet->Dhcp4.Header.Xid) ||\r
- (CompareMem (DhcpSb->ClientAddressSendOut, Head->ClientHwAddr, Head->HwAddrLen) != 0)) {\r
+ (CompareMem (&Token->Packet->Dhcp4.Header.ClientHwAddr[0], Head->ClientHwAddr, Head->HwAddrLen) != 0)) {\r
goto RESTART;\r
}\r
\r
IP4_ADDR Ip;\r
DHCP_SERVICE *DhcpSb;\r
EFI_IP_ADDRESS Gateway;\r
+ IP4_ADDR ClientAddr;\r
+ INTN Class;\r
IP4_ADDR SubnetMask;\r
\r
if ((This == NULL) || (Token == NULL) || (Token->Packet == NULL)) {\r
\r
Instance = DHCP_INSTANCE_FROM_THIS (This);\r
DhcpSb = Instance->Service;\r
+ DhcpSb->ActiveChild = Instance;\r
\r
if (Instance->Token != NULL) {\r
//\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
- if (DhcpSb->ClientAddr == 0) {\r
-\r
+ ClientAddr = EFI_NTOHL (Token->Packet->Dhcp4.Header.ClientAddr);\r
+ \r
+ if (ClientAddr == 0) {\r
return EFI_NO_MAPPING;\r
}\r
\r
//\r
// Get the gateway.\r
//\r
- SubnetMask = DhcpSb->Netmask;\r
+ Class = NetGetIpClass (ClientAddr);\r
+ ASSERT (Class < IP4_ADDR_CLASSE);\r
+ SubnetMask = gIp4AllMasks[Class << 3];\r
ZeroMem (&Gateway, sizeof (Gateway));\r
- if (!IP4_NET_EQUAL (DhcpSb->ClientAddr, EndPoint.RemoteAddr.Addr[0], SubnetMask)) {\r
+ if (!IP4_NET_EQUAL (ClientAddr, EndPoint.RemoteAddr.Addr[0], SubnetMask)) {\r
CopyMem (&Gateway.v4, &Token->GatewayAddress, sizeof (EFI_IPv4_ADDRESS));\r
Gateway.Addr[0] = NTOHL (Gateway.Addr[0]);\r
}\r