diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4InitSelect.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4InitSelect.c | 762 |
1 files changed, 0 insertions, 762 deletions
diff --git a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4InitSelect.c b/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4InitSelect.c deleted file mode 100644 index a94f2537e7..0000000000 --- a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4InitSelect.c +++ /dev/null @@ -1,762 +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:
- PxeDhcp4InitSelect.c
-
-Abstract:
-
---*/
-
-
-#include "PxeDhcp4.h"
-
-STATIC
-INTN
-offer_verify (
- IN PXE_DHCP4_PRIVATE_DATA *Private,
- IN DHCP4_PACKET *tx_pkt,
- IN DHCP4_PACKET *rx_pkt,
- IN UINTN rx_pkt_size
- )
-/*++
- -2 = ignore, stop waiting
- -1 = ignore, keep waiting
- 0 = accept, keep waiting
- 1 = accept, stop waiting
---*/
-{
- EFI_STATUS EfiStatus;
- DHCP4_PACKET *tmp;
- DHCP4_OP *msg_type_op;
- DHCP4_OP *srvid_op;
- UINT32 magik;
-
- //
- // Verify parameters. Touch unused parameters to keep
- // 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 may be a BOOTP Reply or DHCP Offer packet.
- // If there is no DHCP magik number, assume that
- // this is a BOOTP Reply packet.
- //
- magik = htonl (DHCP4_MAGIK_NUMBER);
-
- while (!CompareMem (&rx_pkt->dhcp4.magik, &magik, 4)) {
- //
- // If there is no DHCP message type option, assume
- // this is a BOOTP reply packet and cache it.
- //
- EfiStatus = find_opt (rx_pkt, DHCP4_MESSAGE_TYPE, 0, &msg_type_op);
-
- if (EFI_ERROR (EfiStatus)) {
- break;
- }
- //
- // If there is a DHCP message type option, it must be a
- // DHCP offer packet
- //
- if (msg_type_op->len != 1) {
- return -1;
- }
-
- if (msg_type_op->data[0] != DHCP4_MESSAGE_TYPE_OFFER) {
- return -1;
- }
- //
- // There must be a server identifier option.
- //
- EfiStatus = find_opt (
- rx_pkt,
- DHCP4_SERVER_IDENTIFIER,
- 0,
- &srvid_op
- );
-
- if (EFI_ERROR (EfiStatus)) {
- return -1;
- }
-
- if (srvid_op->len != 4) {
- return -1;
- }
- //
- // Good DHCP offer packet.
- //
- break;
- }
- //
- // Good DHCP (or BOOTP) packet. Cache it!
- //
- tmp = AllocatePool ((Private->offers + 1) * sizeof (DHCP4_PACKET));
- if (tmp == NULL) {
- return -2;
- }
-
- ASSERT (tmp);
-
- if (Private->offers != 0) {
- CopyMem (
- tmp,
- Private->offer_list,
- Private->offers * sizeof (DHCP4_PACKET)
- );
-
- FreePool (Private->offer_list);
- }
-
- CopyMem (&tmp[Private->offers++], rx_pkt, sizeof (DHCP4_PACKET));
-
- Private->offer_list = tmp;
-
- return 0;
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-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
- )
-/*++
- -2 = ignore, stop waiting
- -1 = ignore, keep waiting
- 0 = accept, keep waiting
- 1 = accept, stop waiting
---*/
-{
- EFI_STATUS EfiStatus;
- 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. Touch unused parameters to
- // keep 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;
- }
-
- EfiStatus = find_opt (rx_pkt, DHCP4_MESSAGE_TYPE, 0, &msg_type_op);
-
- if (EFI_ERROR (EfiStatus)) {
- 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.
- //
- EfiStatus = find_opt (rx_pkt, DHCP4_SERVER_IDENTIFIER, 0, &srvid_op);
-
- if (EFI_ERROR (EfiStatus)) {
- 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.
- //
- EfiStatus = find_opt (rx_pkt, DHCP4_RENEWAL_TIME, 0, &renew_op);
-
- if (EFI_ERROR (EfiStatus)) {
- 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.
- //
- EfiStatus = find_opt (rx_pkt, DHCP4_REBINDING_TIME, 0, &rebind_op);
-
- if (EFI_ERROR (EfiStatus)) {
- 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.
- //
- EfiStatus = find_opt (rx_pkt, DHCP4_LEASE_TIME, 0, &lease_time_op);
-
- if (EFI_ERROR (EfiStatus)) {
- 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;
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-EFI_STATUS
-EFIAPI
-PxeDhcp4Init (
- IN EFI_PXE_DHCP4_PROTOCOL *This,
- IN UINTN seconds_timeout,
- OUT UINTN *Offers,
- OUT DHCP4_PACKET **OfferList
- )
-{
- PXE_DHCP4_PRIVATE_DATA *Private;
- DHCP4_PACKET offer;
- EFI_IP_ADDRESS bcast_ip;
- EFI_STATUS EfiStatus;
-
- //
- // Verify parameters and protocol state.
- //
- if (This == NULL ||
- seconds_timeout < DHCP4_MIN_SECONDS ||
- seconds_timeout > DHCP4_MAX_SECONDS ||
- Offers == NULL ||
- OfferList == NULL
- ) {
- //
- // Return parameters are not initialized when
- // parameters are invalid!
- //
- return EFI_INVALID_PARAMETER;
- }
-
- *Offers = 0;
- *OfferList = NULL;
-
- //
- // Check protocol state.
- //
- if (This->Data == NULL) {
- return EFI_NOT_STARTED;
- }
-
- if (!This->Data->SetupCompleted) {
- return EFI_NOT_READY;
- }
-
- //
- // Get pointer to our 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;
- }
- //
- // Setup variables...
- //
- Private->offers = 0;
- Private->offer_list = NULL;
-
- EfiStatus = gBS->HandleProtocol (
- Private->Handle,
- &gEfiPxeDhcp4CallbackProtocolGuid,
- (VOID *) &Private->callback
- );
-
- if (EFI_ERROR (EfiStatus)) {
- Private->callback = NULL;
- }
-
- Private->function = EFI_PXE_DHCP4_FUNCTION_INIT;
-
- //
- // Increment the transaction ID.
- //
- {
- UINT32 xid;
-
- CopyMem (&xid, &This->Data->Discover.dhcp4.xid, sizeof (UINT32));
-
- xid = htonl (htonl (xid) + 1);
-
- CopyMem (&This->Data->Discover.dhcp4.xid, &xid, sizeof (UINT32));
- }
- //
- // Transmit discover and wait for offers...
- //
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);
-
- EfiStatus = tx_rx_udp (
- Private,
- &bcast_ip,
- NULL,
- NULL,
- NULL,
- &This->Data->Discover,
- &offer,
- &offer_verify,
- seconds_timeout
- );
-
- if (EFI_ERROR (EfiStatus)) {
- if (Private->offer_list) {
- FreePool (Private->offer_list);
- }
-
- Private->offers = 0;
- Private->offer_list = NULL;
- Private->callback = NULL;
-
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));
- return EfiStatus;
- }
-
- *Offers = Private->offers;
- *OfferList = Private->offer_list;
-
- Private->offers = 0;
- Private->offer_list = NULL;
- Private->callback = NULL;
-
- This->Data->InitCompleted = TRUE;
- This->Data->SelectCompleted = FALSE;
- This->Data->IsBootp = FALSE;
- This->Data->IsAck = FALSE;
-
- return EFI_SUCCESS;
-}
-
-/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
-EFI_STATUS
-EFIAPI
-PxeDhcp4Select (
- IN EFI_PXE_DHCP4_PROTOCOL *This,
- IN UINTN seconds_timeout,
- IN DHCP4_PACKET *Offer
- )
-{
- PXE_DHCP4_PRIVATE_DATA *Private;
- EFI_STATUS EfiStatus;
- DHCP4_PACKET request;
- DHCP4_PACKET acknak;
- EFI_IP_ADDRESS bcast_ip;
- EFI_IP_ADDRESS zero_ip;
- EFI_IP_ADDRESS local_ip;
- DHCP4_OP *srvid;
- DHCP4_OP *op;
- UINT32 dhcp4_magik;
- UINT8 buf[16];
- BOOLEAN is_bootp;
-
- //
- // Verify parameters.
- //
- if (This == NULL || seconds_timeout < DHCP4_MIN_SECONDS || seconds_timeout > DHCP4_MAX_SECONDS || Offer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Check protocol state.
- //
- if (This->Data == NULL) {
- return EFI_NOT_STARTED;
- }
-
- if (!This->Data->SetupCompleted) {
- return EFI_NOT_READY;
- }
- //
- // 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;
- }
-
- //
- // Setup useful variables...
- //
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);
-
- ZeroMem (&zero_ip, sizeof (EFI_IP_ADDRESS));
-
- ZeroMem (&local_ip, sizeof (EFI_IP_ADDRESS));
- local_ip.v4.Addr[0] = 127;
- local_ip.v4.Addr[3] = 1;
-
- This->Data->SelectCompleted = FALSE;
- This->Data->IsBootp = FALSE;
- This->Data->IsAck = FALSE;
-
- EfiStatus = gBS->HandleProtocol (
- Private->Handle,
- &gEfiPxeDhcp4CallbackProtocolGuid,
- (VOID *) &Private->callback
- );
-
- if (EFI_ERROR (EfiStatus)) {
- Private->callback = NULL;
- }
-
- Private->function = EFI_PXE_DHCP4_FUNCTION_SELECT;
-
- //
- // Verify offer packet fields.
- //
- if (Offer->dhcp4.op != BOOTP_REPLY) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (Offer->dhcp4.htype != This->Data->Discover.dhcp4.htype) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (Offer->dhcp4.hlen != This->Data->Discover.dhcp4.hlen) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (CompareMem (&Offer->dhcp4.xid, &This->Data->Discover.dhcp4.xid, 4)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (!CompareMem (&Offer->dhcp4.yiaddr, &bcast_ip, 4)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (!CompareMem (&Offer->dhcp4.yiaddr, &zero_ip, 4)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (!CompareMem (&Offer->dhcp4.yiaddr, &local_ip, 4)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (CompareMem (
- &Offer->dhcp4.chaddr,
- &This->Data->Discover.dhcp4.chaddr,
- 16
- )) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
- //
- // DHCP option checks
- //
- dhcp4_magik = htonl (DHCP4_MAGIK_NUMBER);
- is_bootp = TRUE;
-
- if (!CompareMem (&Offer->dhcp4.magik, &dhcp4_magik, 4)) {
- //
- // If present, DHCP message type must be offer.
- //
- EfiStatus = find_opt (Offer, DHCP4_MESSAGE_TYPE, 0, &op);
-
- if (!EFI_ERROR (EfiStatus)) {
- if (op->len != 1 || op->data[0] != DHCP4_MESSAGE_TYPE_OFFER) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- is_bootp = FALSE;
- }
- //
- // If present, DHCP max message size must be valid.
- //
- EfiStatus = find_opt (Offer, DHCP4_MAX_MESSAGE_SIZE, 0, &op);
-
- if (!EFI_ERROR (EfiStatus)) {
- if (op->len != 2 || ((op->data[0] << 8) | op->data[1]) < DHCP4_DEFAULT_MAX_MESSAGE_SIZE) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
- }
- //
- // If present, DHCP server identifier must be valid.
- //
- EfiStatus = find_opt (Offer, DHCP4_SERVER_IDENTIFIER, 0, &op);
-
- if (!EFI_ERROR (EfiStatus)) {
- if (op->len != 4 || !CompareMem (op->data, &bcast_ip, 4) || !CompareMem (op->data, &zero_ip, 4)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
- }
- //
- // If present, DHCP subnet mask must be valid.
- //
- EfiStatus = find_opt (
- Offer,
- DHCP4_SUBNET_MASK,
- 0,
- &op
- );
-
- if (!EFI_ERROR (EfiStatus)) {
- if (op->len != 4) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
- }
- }
- //
- // Early out for BOOTP.
- //
- This->Data->IsBootp = is_bootp;
- if (is_bootp) {
- //
- // Copy offer packet to instance data.
- //
- CopyMem (&This->Data->Offer, Offer, sizeof (DHCP4_PACKET));
-
- //
- // Copy discover to request and offer to acknak.
- //
- CopyMem (
- &This->Data->Request,
- &This->Data->Discover,
- sizeof (DHCP4_PACKET)
- );
-
- CopyMem (
- &This->Data->AckNak,
- &This->Data->Offer,
- sizeof (DHCP4_PACKET)
- );
-
- //
- // Set state flags.
- //
- This->Data->SelectCompleted = TRUE;
- This->Data->IsAck = TRUE;
-
- Private->callback = NULL;
- return EFI_SUCCESS;
- }
- //
- // Copy discover packet contents to request packet.
- //
- CopyMem (&request, &This->Data->Discover, sizeof (DHCP4_PACKET));
-
- This->Data->IsAck = FALSE;
-
- //
- // Change DHCP message type from discover to request.
- //
- EfiStatus = find_opt (&request, DHCP4_MESSAGE_TYPE, 0, &op);
-
- if (EFI_ERROR (EfiStatus) && EfiStatus != EFI_NOT_FOUND) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (EfiStatus == EFI_NOT_FOUND) {
- EfiStatus = find_opt (&request, DHCP4_END, 0, &op);
-
- if (EFI_ERROR (EfiStatus)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- op->op = DHCP4_MESSAGE_TYPE;
- op->len = 1;
-
- op->data[1] = DHCP4_END;
- }
-
- op->data[0] = DHCP4_MESSAGE_TYPE_REQUEST;
-
- //
- // Copy server identifier option from offer to request.
- //
- EfiStatus = find_opt (Offer, DHCP4_SERVER_IDENTIFIER, 0, &srvid);
-
- if (EFI_ERROR (EfiStatus)) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- if (srvid->len != 4) {
- Private->callback = NULL;
- return EFI_INVALID_PARAMETER;
- }
-
- EfiStatus = add_opt (&request, srvid);
-
- if (EFI_ERROR (EfiStatus)) {
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));
- Private->callback = NULL;
- return EfiStatus;
- }
- //
- // Add requested IP address option to request packet.
- //
- op = (DHCP4_OP *) buf;
- op->op = DHCP4_REQUESTED_IP_ADDRESS;
- op->len = 4;
- CopyMem (op->data, &Offer->dhcp4.yiaddr, 4);
-
- EfiStatus = add_opt (&request, op);
-
- if (EFI_ERROR (EfiStatus)) {
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));
- Private->callback = NULL;
- return EfiStatus;
- }
- //
- // Transimit DHCP request and wait for DHCP ack...
- //
- SetMem (&bcast_ip, sizeof (EFI_IP_ADDRESS), 0xFF);
-
- EfiStatus = tx_rx_udp (
- Private,
- &bcast_ip,
- NULL,
- NULL,
- NULL,
- &request,
- &acknak,
- &acknak_verify,
- seconds_timeout
- );
-
- if (EFI_ERROR (EfiStatus)) {
- DEBUG ((EFI_D_ERROR, "%r\n", EfiStatus));
- Private->callback = NULL;
- return EfiStatus;
- }
- //
- // Set Data->IsAck and return.
- //
- EfiStatus = find_opt (&acknak, DHCP4_MESSAGE_TYPE, 0, &op);
-
- if (EFI_ERROR (EfiStatus)) {
- Private->callback = NULL;
- return EFI_DEVICE_ERROR;
- }
-
- if (op->len != 1) {
- Private->callback = NULL;
- return EFI_DEVICE_ERROR;
- }
-
- switch (op->data[0]) {
- case DHCP4_MESSAGE_TYPE_ACK:
- This->Data->IsAck = TRUE;
- break;
-
- case DHCP4_MESSAGE_TYPE_NAK:
- This->Data->IsAck = FALSE;
- break;
-
- default:
- Private->callback = NULL;
- return EFI_DEVICE_ERROR;
- }
- //
- // Copy packets into instance data...
- //
- CopyMem (&This->Data->Offer, Offer, sizeof (DHCP4_PACKET));
- CopyMem (&This->Data->Request, &request, sizeof (DHCP4_PACKET));
- CopyMem (&This->Data->AckNak, &acknak, sizeof (DHCP4_PACKET));
-
- This->Data->SelectCompleted = TRUE;
-
- Private->callback = NULL;
- return EFI_SUCCESS;
-}
-
-/* eof - PxeDhcp4InitSelect.c */
|