diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4RenewRebind.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4RenewRebind.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4RenewRebind.c b/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4RenewRebind.c deleted file mode 100644 index 2905255faa..0000000000 --- a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4RenewRebind.c +++ /dev/null @@ -1,408 +0,0 @@ -/*++
-
-Copyright (c) 2006, 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:
- PxeDhcp4RenewRebind.c
-
-Abstract:
-
---*/
-
-
-#include "PxeDhcp4.h"
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-STATIC
-INTN
-acknak_verify (
- IN PXE_DHCP4_PRIVATE_DATA *Private,
- IN DHCP4_PACKET *tx_pkt,
- IN DHCP4_PACKET *rx_pkt,
- IN UINTN rx_pkt_size
- )
-/*++
-Routine Description:
-
-Parameters:
-
-Returns:
- -2 = ignore, stop waiting
- -1 = ignore, keep waiting
- 0 = accept, keep waiting
- 1 = accept, stop waiting
---*/
-{
- EFI_STATUS efi_status;
- DHCP4_OP *msg_type_op;
- DHCP4_OP *srvid_op;
- DHCP4_OP *renew_op;
- DHCP4_OP *rebind_op;
- DHCP4_OP *lease_time_op;
- UINT32 magik;
-
- //
- // Verify parameters. Unused parameters are also touched
- // to make the compiler happy.
- //
- ASSERT (Private);
- ASSERT (rx_pkt);
-
- if (Private == NULL || rx_pkt == NULL) {
- return -2;
- }
-
- tx_pkt = tx_pkt;
- rx_pkt_size = rx_pkt_size;
-
- //
- // This must be a DHCP Ack message.
- //
- magik = htonl (DHCP4_MAGIK_NUMBER);
-
- if (CompareMem (&rx_pkt->dhcp4.magik, &magik, 4)) {
- return -1;
- }
-
- efi_status = find_opt (rx_pkt, DHCP4_MESSAGE_TYPE, 0, &msg_type_op);
-
- if (EFI_ERROR (efi_status)) {
- return -1;
- }
-
- if (msg_type_op->len != 1) {
- return -1;
- }
-
- if (msg_type_op->data[0] != DHCP4_MESSAGE_TYPE_ACK) {
- return -1;
- }
- //
- // There must be a server identifier.
- //
- efi_status = find_opt (rx_pkt, DHCP4_SERVER_IDENTIFIER, 0, &srvid_op);
-
- if (EFI_ERROR (efi_status)) {
- return -1;
- }
-
- if (srvid_op->len != 4) {
- return -1;
- }
- //
- // There should be a renewal time.
- // If there is not, we will default to the 7/8 of the rebinding time.
- //
- efi_status = find_opt (rx_pkt, DHCP4_RENEWAL_TIME, 0, &renew_op);
-
- if (EFI_ERROR (efi_status)) {
- renew_op = NULL;
- } else if (renew_op->len != 4) {
- renew_op = NULL;
- }
- //
- // There should be a rebinding time.
- // If there is not, we will default to 7/8 of the lease time.
- //
- efi_status = find_opt (rx_pkt, DHCP4_REBINDING_TIME, 0, &rebind_op);
-
- if (EFI_ERROR (efi_status)) {
- rebind_op = NULL;
- } else if (rebind_op->len != 4) {
- rebind_op = NULL;
- }
- //
- // There should be a lease time.
- // If there is not, we will default to one week.
- //
- efi_status = find_opt (rx_pkt, DHCP4_LEASE_TIME, 0, &lease_time_op);
-
- if (EFI_ERROR (efi_status)) {
- lease_time_op = NULL;
- } else if (lease_time_op->len != 4) {
- lease_time_op = NULL;
- }
- //
- // Packet looks good. Double check the renew, rebind and lease times.
- //
- CopyMem (&Private->ServerIp, srvid_op->data, 4);
-
- if (renew_op != NULL) {
- CopyMem (&Private->RenewTime, renew_op->data, 4);
- Private->RenewTime = htonl (Private->RenewTime);
- } else {
- Private->RenewTime = 0;
- }
-
- if (rebind_op != NULL) {
- CopyMem (&Private->RebindTime, rebind_op->data, 4);
- Private->RebindTime = htonl (Private->RebindTime);
- } else {
- Private->RebindTime = 0;
- }
-
- if (lease_time_op != NULL) {
- CopyMem (&Private->LeaseTime, lease_time_op->data, 4);
- Private->LeaseTime = htonl (Private->LeaseTime);
- } else {
- Private->LeaseTime = 0;
- }
-
- if (Private->LeaseTime < 60) {
- Private->LeaseTime = 7 * 86400;
- }
-
- if (Private->RebindTime < 52 || Private->RebindTime >= Private->LeaseTime) {
- Private->RebindTime = Private->LeaseTime / 2 + Private->LeaseTime / 4 + Private->LeaseTime / 8;
- }
-
- if (Private->RenewTime < 45 || Private->RenewTime >= Private->RebindTime) {
- Private->RenewTime = Private->RebindTime / 2 + Private->RebindTime / 4 + Private->RebindTime / 8;
- }
-
- return 1;
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-STATIC
-EFI_STATUS
-EFIAPI
-renew_rebind (
- IN EFI_PXE_DHCP4_PROTOCOL *This,
- IN UINTN seconds_timeout,
- IN BOOLEAN renew
- )
-{
- PXE_DHCP4_PRIVATE_DATA *Private;
- EFI_IP_ADDRESS ServerIp;
- EFI_IP_ADDRESS client_ip;
- EFI_IP_ADDRESS subnet_mask;
- EFI_IP_ADDRESS gateway_ip;
- DHCP4_PACKET Request;
- DHCP4_PACKET AckNak;
- DHCP4_OP *op;
- EFI_STATUS efi_status;
-
- //
- // Check for invalid parameters.
- //
- if (This == NULL || seconds_timeout < DHCP4_MIN_SECONDS || seconds_timeout > DHCP4_MAX_SECONDS) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Check for proper protocol state.
- //
- if (This->Data == NULL) {
- return EFI_NOT_STARTED;
- }
-
- if (!This->Data->SelectCompleted) {
- return EFI_NOT_READY;
- }
-
- if (This->Data->IsBootp) {
- return EFI_SUCCESS;
- }
-
- if (!This->Data->IsAck) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Get pointer to 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;
- }
- //
- // Copy Discover packet to temporary request packet
- // to be used for Renew/Rebind operation.
- //
- CopyMem (&Request, &This->Data->Discover, sizeof (DHCP4_PACKET));
-
- CopyMem (&Request.dhcp4.ciaddr, &This->Data->AckNak.dhcp4.yiaddr, 4);
-
- Request.dhcp4.flags = 0; /* Reply does not need to be broadcast. */
-
- //
- // Change message type from discover to request.
- //
- efi_status = find_opt (&Request, DHCP4_MESSAGE_TYPE, 0, &op);
-
- if (EFI_ERROR (efi_status)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (op->len != 1) {
- return EFI_INVALID_PARAMETER;
- }
-
- op->data[0] = DHCP4_MESSAGE_TYPE_REQUEST;
-
- //
- // Need a subnet mask.
- //
- efi_status = find_opt (
- &This->Data->AckNak,
- DHCP4_SUBNET_MASK,
- 0,
- &op
- );
-
- if (EFI_ERROR (efi_status)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (op->len != 4) {
- return EFI_INVALID_PARAMETER;
- }
-
- ZeroMem (&subnet_mask, sizeof (EFI_IP_ADDRESS));
- CopyMem (&subnet_mask, op->data, 4);
-
- //
- // Need a server IP address (renew) or a broadcast
- // IP address (rebind).
- //
- ZeroMem (&gateway_ip, sizeof (EFI_IP_ADDRESS));
-
- if (renew) {
- efi_status = find_opt (
- &This->Data->AckNak,
- DHCP4_SERVER_IDENTIFIER,
- 0,
- &op
- );
-
- if (EFI_ERROR (efi_status)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (op->len != 4) {
- return EFI_INVALID_PARAMETER;
- }
-
- ZeroMem (&ServerIp, sizeof (EFI_IP_ADDRESS));
- CopyMem (&ServerIp, op->data, 4);
-
- //
- //
- //
- if (CompareMem (&This->Data->AckNak.dhcp4.giaddr, &gateway_ip, 4)) {
- CopyMem (&gateway_ip, &This->Data->AckNak.dhcp4.giaddr, 4);
- }
- } else {
- SetMem (&ServerIp, sizeof (EFI_IP_ADDRESS), 0xFF);
- }
- //
- // Need a client IP address.
- //
- ZeroMem (&client_ip, sizeof (EFI_IP_ADDRESS));
- CopyMem (&client_ip, &Request.dhcp4.ciaddr, 4);
-
- //
- //
- //
- efi_status = gBS->HandleProtocol (
- Private->Handle,
- &gEfiPxeDhcp4CallbackProtocolGuid,
- (VOID *) &Private->callback
- );
-
- if (EFI_ERROR (efi_status)) {
- Private->callback = NULL;
- }
-
- Private->function = renew ? EFI_PXE_DHCP4_FUNCTION_RENEW : EFI_PXE_DHCP4_FUNCTION_REBIND;
-
- //
- // Transimit DHCP request and wait for DHCP ack...
- //
- efi_status = tx_rx_udp (
- Private,
- &ServerIp,
- &gateway_ip,
- &client_ip,
- &subnet_mask,
- &Request,
- &AckNak,
- &acknak_verify,
- seconds_timeout
- );
-
- if (EFI_ERROR (efi_status)) {
- Private->callback = NULL;
- return efi_status;
- }
- //
- // Copy server identifier, renewal time and rebinding time
- // from temporary ack/nak packet into cached ack/nak packet.
- //
- efi_status = find_opt (
- &This->Data->AckNak,
- DHCP4_SERVER_IDENTIFIER,
- 0,
- &op
- );
-
- if (!EFI_ERROR (efi_status)) {
- if (op->len == 4) {
- CopyMem (op->data, &Private->ServerIp, 4);
- }
- }
-
- efi_status = find_opt (&This->Data->AckNak, DHCP4_RENEWAL_TIME, 0, &op);
-
- if (!EFI_ERROR (efi_status)) {
- if (op->len == 4) {
- CopyMem (op->data, &Private->RenewTime, 4);
- }
- }
-
- efi_status = find_opt (&This->Data->AckNak, DHCP4_REBINDING_TIME, 0, &op);
-
- if (!EFI_ERROR (efi_status)) {
- if (op->len == 4) {
- CopyMem (op->data, &Private->RebindTime, 4);
- }
- }
-
- Private->callback = NULL;
- return efi_status;
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-EFI_STATUS
-EFIAPI
-PxeDhcp4Renew (
- IN EFI_PXE_DHCP4_PROTOCOL *This,
- IN UINTN seconds_timeout
- )
-{
- return renew_rebind (This, seconds_timeout, TRUE);
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-EFI_STATUS
-EFIAPI
-PxeDhcp4Rebind (
- IN EFI_PXE_DHCP4_PROTOCOL *This,
- IN UINTN seconds_timeout
- )
-{
- return renew_rebind (This, seconds_timeout, FALSE);
-}
-
-/* eof - PxeDhcp4RenewRebind.c */
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