/** @file\r
-\r
-Copyright (c) 2006 - 2008, Intel Corporation\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
-\r
-Module Name:\r
-\r
- Dhcp4Impl.h\r
-\r
-Abstract:\r
-\r
- EFI DHCP protocol implementation\r
+ EFI DHCP protocol implementation.\r
RFCs supported are:\r
RFC 2131: Dynamic Host Configuration Protocol\r
RFC 2132: DHCP Options and BOOTP Vendor Extensions\r
RFC 1534: Interoperation Between DHCP and BOOTP\r
- RFC 3396: Encoding Long Options in DHCP\r
+ RFC 3396: Encoding Long Options in DHCP.\r
\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
\r
\r
-#include <PiDxe.h>\r
+#include <Uefi.h>\r
\r
#include <Protocol/Dhcp4.h>\r
#include <Protocol/Udp4.h>\r
-\r
+#include <IndustryStandard/Dhcp.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include "Dhcp4Option.h"\r
#include "Dhcp4Io.h"\r
\r
-enum {\r
- DHCP_SERVICE_SIGNATURE = EFI_SIGNATURE_32 ('D', 'H', 'C', 'P'),\r
- DHCP_PROTOCOL_SIGNATURE = EFI_SIGNATURE_32 ('d', 'h', 'c', 'p'),\r
+#define DHCP_SERVICE_SIGNATURE SIGNATURE_32 ('D', 'H', 'C', 'P')\r
+#define DHCP_PROTOCOL_SIGNATURE SIGNATURE_32 ('d', 'h', 'c', 'p')\r
+\r
+#define DHCP_CHECK_MEDIA_WAITING_TIME EFI_TIMER_PERIOD_SECONDS(20)\r
+\r
+//\r
+// The state of the DHCP service. It starts as UNCONFIGED. If\r
+// and active child configures the service successfully, it\r
+// goes to CONFIGED. If the active child configures NULL, it\r
+// goes back to UNCONFIGED. It becomes DESTROY if it is (partly)\r
+// destroyed.\r
+//\r
+#define DHCP_UNCONFIGED 0\r
+#define DHCP_CONFIGED 1\r
+#define DHCP_DESTROY 2\r
\r
- //\r
- // The state of the DHCP service. It starts as UNCONFIGED. If\r
- // and active child configures the service successfully, it\r
- // goes to CONFIGED. If the active child configures NULL, it\r
- // goes back to UNCONFIGED. It becomes DESTORY if it is (partly)\r
- // destoried.\r
- //\r
- DHCP_UNCONFIGED = 0,\r
- DHCP_CONFIGED,\r
- DHCP_DESTORY\r
-};\r
\r
struct _DHCP_PROTOCOL {\r
UINT32 Signature;\r
EFI_HANDLE Handle;\r
DHCP_SERVICE *Service;\r
\r
- BOOLEAN InDestory;\r
+ BOOLEAN InDestroy;\r
\r
EFI_EVENT CompletionEvent;\r
EFI_EVENT RenewRebindEvent;\r
\r
EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN *Token;\r
- UDP_IO_PORT *UdpIo; // The UDP IO used for TransmitReceive.\r
+ UDP_IO *UdpIo; // The UDP IO used for TransmitReceive.\r
UINT32 Timeout;\r
+ UINT16 ElaspedTime;\r
NET_BUF_QUEUE ResponseQueue;\r
};\r
\r
UINT32 Signature;\r
EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;\r
\r
- INTN ServiceState; // CONFIGED, UNCONFIGED, and DESTORY\r
- BOOLEAN InDestory;\r
+ INTN ServiceState; // CONFIGED, UNCONFIGED, and DESTROY\r
\r
EFI_HANDLE Controller;\r
EFI_HANDLE Image;\r
UINT32 T2;\r
INTN ExtraRefresh; // This refresh is reqested by user\r
\r
- UDP_IO_PORT *UdpIo; // Udp child receiving all DHCP message\r
- UDP_IO_PORT *LeaseIoPort; // Udp child with lease IP\r
- NET_BUF *LastPacket; // The last sent packet for retransmission\r
+ UDP_IO *UdpIo; // Udp child receiving all DHCP message\r
+ UDP_IO *LeaseIoPort; // Udp child with lease IP\r
+ EFI_DHCP4_PACKET *LastPacket; // The last sent packet for retransmission\r
EFI_MAC_ADDRESS Mac;\r
UINT8 HwType;\r
UINT8 HwLen;\r
EFI_EVENT Timer;\r
\r
UINT32 PacketToLive; // Retransmission timer for our packets\r
+ UINT32 LastTimeout; // Record the init value of PacketToLive every time\r
INTN CurRetry;\r
INTN MaxRetries;\r
UINT32 LeaseLife;\r
\r
extern EFI_DHCP4_PROTOCOL mDhcp4ProtocolTemplate;\r
\r
+/**\r
+ Give up the control of the DHCP service to let other child\r
+ resume. Don't change the service's DHCP state and the Client\r
+ address and option list configure as required by RFC2131.\r
+\r
+ @param DhcpSb The DHCP service instance.\r
+\r
+**/\r
VOID\r
DhcpYieldControl (\r
- IN DHCP_SERVICE *DhcpSb\r
+ IN DHCP_SERVICE *DhcpSb\r
);\r
\r
+/**\r
+ Complete a Dhcp4 transaction and signal the upper layer.\r
+\r
+ @param Instance Dhcp4 instance.\r
+\r
+**/\r
VOID\r
PxeDhcpDone (\r
IN DHCP_PROTOCOL *Instance\r
);\r
\r
+/**\r
+ Free the resource related to the configure parameters.\r
+ DHCP driver will make a copy of the user's configure\r
+ such as the time out value.\r
+\r
+ @param Config The DHCP configure data\r
+\r
+**/\r
+VOID\r
+DhcpCleanConfigure (\r
+ IN OUT EFI_DHCP4_CONFIG_DATA *Config\r
+ );\r
+\r
+/**\r
+ Callback of Dhcp packet. Does nothing.\r
+\r
+ @param Arg The context.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+DhcpDummyExtFree (\r
+ IN VOID *Arg\r
+ );\r
+\r
+/**\r
+ Set the elapsed time based on the given instance and the pointer to the\r
+ elapsed time option.\r
+\r
+ @param[in] Elapsed The pointer to the position to append.\r
+ @param[in] Instance The pointer to the Dhcp4 instance.\r
+**/\r
+VOID\r
+SetElapsedTime (\r
+ IN UINT16 *Elapsed,\r
+ IN DHCP_PROTOCOL *Instance\r
+ );\r
+\r
#endif\r
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