+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006 - 2007, 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
- PxeDhcp4InitSelect.c\r
-\r
-Abstract:\r
-\r
---*/\r
-\r
-\r
-#include "PxeDhcp4.h"\r
-\r
-STATIC\r
-INTN\r
-offer_verify (\r
- IN PXE_DHCP4_PRIVATE_DATA *Private,\r
- IN DHCP4_PACKET *tx_pkt,\r
- IN DHCP4_PACKET *rx_pkt,\r
- IN UINTN rx_pkt_size\r
- )\r
-/*++\r
- -2 = ignore, stop waiting\r
- -1 = ignore, keep waiting\r
- 0 = accept, keep waiting\r
- 1 = accept, stop waiting\r
---*/\r
-{\r
- EFI_STATUS EfiStatus;\r
- DHCP4_PACKET *tmp;\r
- DHCP4_OP *msg_type_op;\r
- DHCP4_OP *srvid_op;\r
- UINT32 magik;\r
-\r
- //\r
- // Verify parameters. Touch unused parameters to keep\r
- // compiler happy.\r
- //\r
- ASSERT (Private);\r
- ASSERT (rx_pkt);\r
-\r
- if (Private == NULL || rx_pkt == NULL) {\r
- return -2;\r
- }\r
-\r
- tx_pkt = tx_pkt;\r
- rx_pkt_size = rx_pkt_size;\r
-\r
- //\r
- // This may be a BOOTP Reply or DHCP Offer packet.\r
- // If there is no DHCP magik number, assume that\r
- // this is a BOOTP Reply packet.\r
- //\r
- magik = htonl (DHCP4_MAGIK_NUMBER);\r
-\r
- while (!CompareMem (&rx_pkt->dhcp4.magik, &magik, 4)) {\r
- //\r
- // If there is no DHCP message type option, assume\r
- // this is a BOOTP reply packet and cache it.\r
- //\r
- EfiStatus = find_opt (rx_pkt, DHCP4_MESSAGE_TYPE, 0, &msg_type_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- break;\r
- }\r
- //\r
- // If there is a DHCP message type option, it must be a\r
- // DHCP offer packet\r
- //\r
- if (msg_type_op->len != 1) {\r
- return -1;\r
- }\r
-\r
- if (msg_type_op->data[0] != DHCP4_MESSAGE_TYPE_OFFER) {\r
- return -1;\r
- }\r
- //\r
- // There must be a server identifier option.\r
- //\r
- EfiStatus = find_opt (\r
- rx_pkt,\r
- DHCP4_SERVER_IDENTIFIER,\r
- 0,\r
- &srvid_op\r
- );\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- return -1;\r
- }\r
-\r
- if (srvid_op->len != 4) {\r
- return -1;\r
- }\r
- //\r
- // Good DHCP offer packet.\r
- //\r
- break;\r
- }\r
- //\r
- // Good DHCP (or BOOTP) packet. Cache it!\r
- //\r
- tmp = AllocatePool ((Private->offers + 1) * sizeof (DHCP4_PACKET));\r
- if (tmp == NULL) {\r
- return -2;\r
- }\r
-\r
- ASSERT (tmp);\r
-\r
- if (Private->offers != 0) {\r
- CopyMem (\r
- tmp,\r
- Private->offer_list,\r
- Private->offers * sizeof (DHCP4_PACKET)\r
- );\r
-\r
- FreePool (Private->offer_list);\r
- }\r
-\r
- CopyMem (&tmp[Private->offers++], rx_pkt, sizeof (DHCP4_PACKET));\r
-\r
- Private->offer_list = tmp;\r
-\r
- return 0;\r
-}\r
-\r
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */\r
-STATIC\r
-INTN\r
-acknak_verify (\r
- IN PXE_DHCP4_PRIVATE_DATA *Private,\r
- IN DHCP4_PACKET *tx_pkt,\r
- IN DHCP4_PACKET *rx_pkt,\r
- IN UINTN rx_pkt_size\r
- )\r
-/*++\r
- -2 = ignore, stop waiting\r
- -1 = ignore, keep waiting\r
- 0 = accept, keep waiting\r
- 1 = accept, stop waiting\r
---*/\r
-{\r
- EFI_STATUS EfiStatus;\r
- DHCP4_OP *msg_type_op;\r
- DHCP4_OP *srvid_op;\r
- DHCP4_OP *renew_op;\r
- DHCP4_OP *rebind_op;\r
- DHCP4_OP *lease_time_op;\r
- UINT32 magik;\r
-\r
- //\r
- // Verify parameters. Touch unused parameters to\r
- // keep compiler happy.\r
- //\r
- ASSERT (Private);\r
- ASSERT (rx_pkt);\r
-\r
- if (Private == NULL || rx_pkt == NULL) {\r
- return -2;\r
- }\r
-\r
- tx_pkt = tx_pkt;\r
- rx_pkt_size = rx_pkt_size;\r
-\r
- //\r
- // This must be a DHCP Ack message.\r
- //\r
- magik = htonl (DHCP4_MAGIK_NUMBER);\r
-\r
- if (CompareMem (&rx_pkt->dhcp4.magik, &magik, 4)) {\r
- return -1;\r
- }\r
-\r
- EfiStatus = find_opt (rx_pkt, DHCP4_MESSAGE_TYPE, 0, &msg_type_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- return -1;\r
- }\r
-\r
- if (msg_type_op->len != 1) {\r
- return -1;\r
- }\r
-\r
- if (msg_type_op->data[0] != DHCP4_MESSAGE_TYPE_ACK) {\r
- return -1;\r
- }\r
- //\r
- // There must be a server identifier.\r
- //\r
- EfiStatus = find_opt (rx_pkt, DHCP4_SERVER_IDENTIFIER, 0, &srvid_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- return -1;\r
- }\r
-\r
- if (srvid_op->len != 4) {\r
- return -1;\r
- }\r
- //\r
- // There should be a renewal time.\r
- // If there is not, we will default to the 7/8 of the rebinding time.\r
- //\r
- EfiStatus = find_opt (rx_pkt, DHCP4_RENEWAL_TIME, 0, &renew_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- renew_op = NULL;\r
- } else if (renew_op->len != 4) {\r
- renew_op = NULL;\r
- }\r
- //\r
- // There should be a rebinding time.\r
- // If there is not, we will default to 7/8 of the lease time.\r
- //\r
- EfiStatus = find_opt (rx_pkt, DHCP4_REBINDING_TIME, 0, &rebind_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- rebind_op = NULL;\r
- } else if (rebind_op->len != 4) {\r
- rebind_op = NULL;\r
- }\r
- //\r
- // There should be a lease time.\r
- // If there is not, we will default to one week.\r
- //\r
- EfiStatus = find_opt (rx_pkt, DHCP4_LEASE_TIME, 0, &lease_time_op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- lease_time_op = NULL;\r
- } else if (lease_time_op->len != 4) {\r
- lease_time_op = NULL;\r
- }\r
- //\r
- // Packet looks good. Double check the renew, rebind and lease times.\r
- //\r
- CopyMem (&Private->ServerIp, srvid_op->data, 4);\r
-\r
- if (renew_op != NULL) {\r
- CopyMem (&Private->RenewTime, renew_op->data, 4);\r
- Private->RenewTime = htonl (Private->RenewTime);\r
- } else {\r
- Private->RenewTime = 0;\r
- }\r
-\r
- if (rebind_op != NULL) {\r
- CopyMem (&Private->RebindTime, rebind_op->data, 4);\r
- Private->RebindTime = htonl (Private->RebindTime);\r
- } else {\r
- Private->RebindTime = 0;\r
- }\r
-\r
- if (lease_time_op != NULL) {\r
- CopyMem (&Private->LeaseTime, lease_time_op->data, 4);\r
- Private->LeaseTime = htonl (Private->LeaseTime);\r
- } else {\r
- Private->LeaseTime = 0;\r
- }\r
-\r
- if (Private->LeaseTime < 60) {\r
- Private->LeaseTime = 7 * 86400;\r
- }\r
-\r
- if (Private->RebindTime < 52 || Private->RebindTime >= Private->LeaseTime) {\r
- Private->RebindTime = Private->LeaseTime / 2 + Private->LeaseTime / 4 + Private->LeaseTime / 8;\r
- }\r
-\r
- if (Private->RenewTime < 45 || Private->RenewTime >= Private->RebindTime) {\r
- Private->RenewTime = Private->RebindTime / 2 + Private->RebindTime / 4 + Private->RebindTime / 8;\r
- }\r
-\r
- return 1;\r
-}\r
-\r
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */\r
-EFI_STATUS\r
-EFIAPI\r
-PxeDhcp4Init (\r
- IN EFI_PXE_DHCP4_PROTOCOL *This,\r
- IN UINTN seconds_timeout,\r
- OUT UINTN *Offers,\r
- OUT DHCP4_PACKET **OfferList\r
- )\r
-{\r
- PXE_DHCP4_PRIVATE_DATA *Private;\r
- DHCP4_PACKET offer;\r
- EFI_IP_ADDRESS bcast_ip;\r
- EFI_STATUS EfiStatus;\r
-\r
- //\r
- // Verify parameters and protocol state.\r
- //\r
- if (This == NULL ||\r
- seconds_timeout < DHCP4_MIN_SECONDS ||\r
- seconds_timeout > DHCP4_MAX_SECONDS ||\r
- Offers == NULL ||\r
- OfferList == NULL\r
- ) {\r
- //\r
- // Return parameters are not initialized when\r
- // parameters are invalid!\r
- //\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *Offers = 0;\r
- *OfferList = NULL;\r
-\r
- //\r
- // Check protocol state.\r
- //\r
- if (This->Data == NULL) {\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- if (!This->Data->SetupCompleted) {\r
- return EFI_NOT_READY;\r
- }\r
-\r
- //\r
- // Get pointer to our instance data.\r
- //\r
- Private = PXE_DHCP4_PRIVATE_DATA_FROM_THIS (This);\r
-\r
- if (Private == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Private->PxeBc == NULL) {\r
- return EFI_DEVICE_ERROR;\r
- }\r
- //\r
- // Setup variables...\r
- //\r
- Private->offers = 0;\r
- Private->offer_list = NULL;\r
-\r
- EfiStatus = gBS->HandleProtocol (\r
- Private->Handle,\r
- &gEfiPxeDhcp4CallbackProtocolGuid,\r
- (VOID *) &Private->callback\r
- );\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- Private->callback = NULL;\r
- }\r
-\r
- Private->function = EFI_PXE_DHCP4_FUNCTION_INIT;\r
-\r
- //\r
- // Increment the transaction ID.\r
- //\r
- {\r
- UINT32 xid;\r
-\r
- CopyMem (&xid, &This->Data->Discover.dhcp4.xid, sizeof (UINT32));\r
-\r
- xid = htonl (htonl (xid) + 1);\r
-\r
- CopyMem (&This->Data->Discover.dhcp4.xid, &xid, sizeof (UINT32));\r
- }\r
- //\r
- // Transmit discover and wait for offers...\r
- //\r
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);\r
-\r
- EfiStatus = tx_rx_udp (\r
- Private,\r
- &bcast_ip,\r
- NULL,\r
- NULL,\r
- NULL,\r
- &This->Data->Discover,\r
- &offer,\r
- &offer_verify,\r
- seconds_timeout\r
- );\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- if (Private->offer_list) {\r
- FreePool (Private->offer_list);\r
- }\r
-\r
- Private->offers = 0;\r
- Private->offer_list = NULL;\r
- Private->callback = NULL;\r
-\r
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));\r
- return EfiStatus;\r
- }\r
-\r
- *Offers = Private->offers;\r
- *OfferList = Private->offer_list;\r
-\r
- Private->offers = 0;\r
- Private->offer_list = NULL;\r
- Private->callback = NULL;\r
-\r
- This->Data->InitCompleted = TRUE;\r
- This->Data->SelectCompleted = FALSE;\r
- This->Data->IsBootp = FALSE;\r
- This->Data->IsAck = FALSE;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */\r
-EFI_STATUS\r
-EFIAPI\r
-PxeDhcp4Select (\r
- IN EFI_PXE_DHCP4_PROTOCOL *This,\r
- IN UINTN seconds_timeout,\r
- IN DHCP4_PACKET *Offer\r
- )\r
-{\r
- PXE_DHCP4_PRIVATE_DATA *Private;\r
- EFI_STATUS EfiStatus;\r
- DHCP4_PACKET request;\r
- DHCP4_PACKET acknak;\r
- EFI_IP_ADDRESS bcast_ip;\r
- EFI_IP_ADDRESS zero_ip;\r
- EFI_IP_ADDRESS local_ip;\r
- DHCP4_OP *srvid;\r
- DHCP4_OP *op;\r
- UINT32 dhcp4_magik;\r
- UINT8 buf[16];\r
- BOOLEAN is_bootp;\r
-\r
- //\r
- // Verify parameters.\r
- //\r
- if (This == NULL || seconds_timeout < DHCP4_MIN_SECONDS || seconds_timeout > DHCP4_MAX_SECONDS || Offer == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Check protocol state.\r
- //\r
- if (This->Data == NULL) {\r
- return EFI_NOT_STARTED;\r
- }\r
-\r
- if (!This->Data->SetupCompleted) {\r
- return EFI_NOT_READY;\r
- }\r
- //\r
- // Get pointer to instance data.\r
- //\r
- Private = PXE_DHCP4_PRIVATE_DATA_FROM_THIS (This);\r
-\r
- if (Private == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Private->PxeBc == NULL) {\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- //\r
- // Setup useful variables...\r
- //\r
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);\r
-\r
- ZeroMem (&zero_ip, sizeof (EFI_IP_ADDRESS));\r
-\r
- ZeroMem (&local_ip, sizeof (EFI_IP_ADDRESS));\r
- local_ip.v4.Addr[0] = 127;\r
- local_ip.v4.Addr[3] = 1;\r
-\r
- This->Data->SelectCompleted = FALSE;\r
- This->Data->IsBootp = FALSE;\r
- This->Data->IsAck = FALSE;\r
-\r
- EfiStatus = gBS->HandleProtocol (\r
- Private->Handle,\r
- &gEfiPxeDhcp4CallbackProtocolGuid,\r
- (VOID *) &Private->callback\r
- );\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- Private->callback = NULL;\r
- }\r
-\r
- Private->function = EFI_PXE_DHCP4_FUNCTION_SELECT;\r
-\r
- //\r
- // Verify offer packet fields.\r
- //\r
- if (Offer->dhcp4.op != BOOTP_REPLY) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Offer->dhcp4.htype != This->Data->Discover.dhcp4.htype) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Offer->dhcp4.hlen != This->Data->Discover.dhcp4.hlen) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (CompareMem (&Offer->dhcp4.xid, &This->Data->Discover.dhcp4.xid, 4)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (!CompareMem (&Offer->dhcp4.yiaddr, &bcast_ip, 4)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (!CompareMem (&Offer->dhcp4.yiaddr, &zero_ip, 4)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (!CompareMem (&Offer->dhcp4.yiaddr, &local_ip, 4)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (CompareMem (\r
- &Offer->dhcp4.chaddr,\r
- &This->Data->Discover.dhcp4.chaddr,\r
- 16\r
- )) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // DHCP option checks\r
- //\r
- dhcp4_magik = htonl (DHCP4_MAGIK_NUMBER);\r
- is_bootp = TRUE;\r
-\r
- if (!CompareMem (&Offer->dhcp4.magik, &dhcp4_magik, 4)) {\r
- //\r
- // If present, DHCP message type must be offer.\r
- //\r
- EfiStatus = find_opt (Offer, DHCP4_MESSAGE_TYPE, 0, &op);\r
-\r
- if (!EFI_ERROR (EfiStatus)) {\r
- if (op->len != 1 || op->data[0] != DHCP4_MESSAGE_TYPE_OFFER) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- is_bootp = FALSE;\r
- }\r
- //\r
- // If present, DHCP max message size must be valid.\r
- //\r
- EfiStatus = find_opt (Offer, DHCP4_MAX_MESSAGE_SIZE, 0, &op);\r
-\r
- if (!EFI_ERROR (EfiStatus)) {\r
- if (op->len != 2 || ((op->data[0] << 8) | op->data[1]) < DHCP4_DEFAULT_MAX_MESSAGE_SIZE) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
- //\r
- // If present, DHCP server identifier must be valid.\r
- //\r
- EfiStatus = find_opt (Offer, DHCP4_SERVER_IDENTIFIER, 0, &op);\r
-\r
- if (!EFI_ERROR (EfiStatus)) {\r
- if (op->len != 4 || !CompareMem (op->data, &bcast_ip, 4) || !CompareMem (op->data, &zero_ip, 4)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
- //\r
- // If present, DHCP subnet mask must be valid.\r
- //\r
- EfiStatus = find_opt (\r
- Offer,\r
- DHCP4_SUBNET_MASK,\r
- 0,\r
- &op\r
- );\r
-\r
- if (!EFI_ERROR (EfiStatus)) {\r
- if (op->len != 4) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- }\r
- }\r
- //\r
- // Early out for BOOTP.\r
- //\r
- This->Data->IsBootp = is_bootp;\r
- if (is_bootp) {\r
- //\r
- // Copy offer packet to instance data.\r
- //\r
- CopyMem (&This->Data->Offer, Offer, sizeof (DHCP4_PACKET));\r
-\r
- //\r
- // Copy discover to request and offer to acknak.\r
- //\r
- CopyMem (\r
- &This->Data->Request,\r
- &This->Data->Discover,\r
- sizeof (DHCP4_PACKET)\r
- );\r
-\r
- CopyMem (\r
- &This->Data->AckNak,\r
- &This->Data->Offer,\r
- sizeof (DHCP4_PACKET)\r
- );\r
-\r
- //\r
- // Set state flags.\r
- //\r
- This->Data->SelectCompleted = TRUE;\r
- This->Data->IsAck = TRUE;\r
-\r
- Private->callback = NULL;\r
- return EFI_SUCCESS;\r
- }\r
- //\r
- // Copy discover packet contents to request packet.\r
- //\r
- CopyMem (&request, &This->Data->Discover, sizeof (DHCP4_PACKET));\r
-\r
- This->Data->IsAck = FALSE;\r
-\r
- //\r
- // Change DHCP message type from discover to request.\r
- //\r
- EfiStatus = find_opt (&request, DHCP4_MESSAGE_TYPE, 0, &op);\r
-\r
- if (EFI_ERROR (EfiStatus) && EfiStatus != EFI_NOT_FOUND) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (EfiStatus == EFI_NOT_FOUND) {\r
- EfiStatus = find_opt (&request, DHCP4_END, 0, &op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- op->op = DHCP4_MESSAGE_TYPE;\r
- op->len = 1;\r
-\r
- op->data[1] = DHCP4_END;\r
- }\r
-\r
- op->data[0] = DHCP4_MESSAGE_TYPE_REQUEST;\r
-\r
- //\r
- // Copy server identifier option from offer to request.\r
- //\r
- EfiStatus = find_opt (Offer, DHCP4_SERVER_IDENTIFIER, 0, &srvid);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (srvid->len != 4) {\r
- Private->callback = NULL;\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- EfiStatus = add_opt (&request, srvid);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));\r
- Private->callback = NULL;\r
- return EfiStatus;\r
- }\r
- //\r
- // Add requested IP address option to request packet.\r
- //\r
- op = (DHCP4_OP *) buf;\r
- op->op = DHCP4_REQUESTED_IP_ADDRESS;\r
- op->len = 4;\r
- CopyMem (op->data, &Offer->dhcp4.yiaddr, 4);\r
-\r
- EfiStatus = add_opt (&request, op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));\r
- Private->callback = NULL;\r
- return EfiStatus;\r
- }\r
- //\r
- // Transimit DHCP request and wait for DHCP ack...\r
- //\r
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);\r
-\r
- EfiStatus = tx_rx_udp (\r
- Private,\r
- &bcast_ip,\r
- NULL,\r
- NULL,\r
- NULL,\r
- &request,\r
- &acknak,\r
- &acknak_verify,\r
- seconds_timeout\r
- );\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));\r
- Private->callback = NULL;\r
- return EfiStatus;\r
- }\r
- //\r
- // Set Data->IsAck and return.\r
- //\r
- EfiStatus = find_opt (&acknak, DHCP4_MESSAGE_TYPE, 0, &op);\r
-\r
- if (EFI_ERROR (EfiStatus)) {\r
- Private->callback = NULL;\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- if (op->len != 1) {\r
- Private->callback = NULL;\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- switch (op->data[0]) {\r
- case DHCP4_MESSAGE_TYPE_ACK:\r
- This->Data->IsAck = TRUE;\r
- break;\r
-\r
- case DHCP4_MESSAGE_TYPE_NAK:\r
- This->Data->IsAck = FALSE;\r
- break;\r
-\r
- default:\r
- Private->callback = NULL;\r
- return EFI_DEVICE_ERROR;\r
- }\r
- //\r
- // Copy packets into instance data...\r
- //\r
- CopyMem (&This->Data->Offer, Offer, sizeof (DHCP4_PACKET));\r
- CopyMem (&This->Data->Request, &request, sizeof (DHCP4_PACKET));\r
- CopyMem (&This->Data->AckNak, &acknak, sizeof (DHCP4_PACKET));\r
-\r
- This->Data->SelectCompleted = TRUE;\r
-\r
- Private->callback = NULL;\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/* eof - PxeDhcp4InitSelect.c */\r
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