diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4Release.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4Release.c | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4Release.c b/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4Release.c deleted file mode 100644 index 4bbc8a832e..0000000000 --- a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4Release.c +++ /dev/null @@ -1,246 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. 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
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
- PxeDhcp4Release.c
-
-Abstract:
- Transmit release packet, free allocations and shutdown PxeDhcp4.
-
---*/
-
-
-#include "PxeDhcp4.h"
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-EFI_STATUS
-EFIAPI
-PxeDhcp4Release (
- IN EFI_PXE_DHCP4_PROTOCOL *This
- )
-{
- PXE_DHCP4_PRIVATE_DATA *Private;
- EFI_IP_ADDRESS ServerIp;
- EFI_IP_ADDRESS client_ip;
- EFI_IP_ADDRESS gateway_ip;
- EFI_IP_ADDRESS subnet_mask;
- EFI_STATUS efi_status;
- DHCP4_OP *op;
- UINT8 op_list[20];
-
- //
- // Check for invalid parameters.
- //
- if (This == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Release does nothing if the protocol has never been setup.
- //
- if (This->Data == NULL) {
- return EFI_NOT_STARTED;
- }
- //
- // Fail if we do not have valid instance data.
- //
- Private = PXE_DHCP4_PRIVATE_DATA_FROM_THIS (This);
-
- if (Private == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Private->PxeBc == NULL) {
- return EFI_DEVICE_ERROR;
- }
- //
- // If this is a BOOTP session and there is not a DHCP Ack
- // packet, just release storage and return.
- //
- if (This->Data->IsBootp || !This->Data->IsAck) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
- }
- //
- // Build option list for DHCP Release packet.
- // If any errors occur, just release storage and return.
- //
- //
- // Message type is first.
- //
- op_list[0] = DHCP4_MESSAGE_TYPE;
- op_list[1] = 1;
- op_list[2] = DHCP4_MESSAGE_TYPE_RELEASE;
-
- //
- // Followed by server identifier.
- //
- efi_status = find_opt (
- &This->Data->Request,
- DHCP4_SERVER_IDENTIFIER,
- 0,
- &op
- );
-
- if (EFI_ERROR (efi_status)) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
- }
-
- if (op->len != 4) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
- }
-
- CopyMem (&ServerIp, op->data, 4);
-
- op_list[3] = DHCP4_SERVER_IDENTIFIER;
- op_list[4] = 4;
- CopyMem (&op_list[5], &ServerIp, 4);
-
- //
- // Followed by end.
- //
- op_list[9] = DHCP4_END;
-
- //
- // We need a subnet mask for IP stack operation.
- //
- efi_status = find_opt (
- &This->Data->AckNak,
- DHCP4_SUBNET_MASK,
- 0,
- &op
- );
-
- if (EFI_ERROR (efi_status)) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
- }
-
- if (op->len != 4) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
- }
-
- ZeroMem (&subnet_mask, sizeof (EFI_IP_ADDRESS));
- CopyMem (&subnet_mask, op->data, 4);
-
- //
- // Gateway IP address may be needed.
- //
- ZeroMem (&gateway_ip, sizeof (EFI_IP_ADDRESS));
- CopyMem (&gateway_ip, &This->Data->AckNak.dhcp4.giaddr, 4);
-
- //
- // Client IP address needed for IP stack operation.
- //
- ZeroMem (&client_ip, sizeof (EFI_IP_ADDRESS));
- CopyMem (&client_ip, &This->Data->AckNak.dhcp4.yiaddr, 4);
-
- //
- // Enable UDP...
- //
- efi_status = start_udp (Private, &client_ip, &subnet_mask);
-
- if (EFI_ERROR (efi_status)) {
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return efi_status;
- }
- //
- // Gather information out of DHCP request packet needed for
- // DHCP release packet.
- //
- //
- // Setup DHCP Release packet.
- //
- CopyMem (&This->Data->Request.dhcp4.ciaddr, &client_ip, 4);
-
- ZeroMem (&This->Data->Request.dhcp4.yiaddr, 12);
-
- ZeroMem (&This->Data->Request.dhcp4.sname, 64 + 128);
-
- This->Data->Request.dhcp4.hops = 0;
- This->Data->Request.dhcp4.secs = 0;
- This->Data->Request.dhcp4.flags = 0;
-
- ZeroMem (
- &This->Data->Request.dhcp4.options,
- sizeof This->Data->Request.dhcp4.options
- );
-
- CopyMem (&This->Data->Request.dhcp4.options, op_list, 10);
-
- //
- // Transmit DHCP Release packet.
- //
- tx_udp (
- Private,
- &ServerIp,
- &gateway_ip,
- &client_ip,
- &This->Data->Request,
- DHCP4_MAX_PACKET_SIZE - (DHCP4_UDP_HEADER_SIZE + DHCP4_IP_HEADER_SIZE)
- );
-
- gBS->Stall (1000000); /* 1/10th second */
-
- //
- // Shutdown PXE BaseCode and release local storage.
- //
- stop_udp (Private);
-
- FreePool (This->Data);
- This->Data = NULL;
-
- if (Private->StopPxeBc) {
- Private->PxeBc->Stop (Private->PxeBc);
- }
-
- return EFI_SUCCESS;
-}
-
-/* eof - PxeDhcp4Release.c */
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