X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=NetworkPkg%2FUefiPxeBcDxe%2FPxeBcDhcp6.c;h=6a08e9a2de68a56cebf1c71174ec6364af4119bc;hb=471342bbefaac1c21fe7fa4e80949b552b12fbdd;hp=6ad5f5f1ac9fd5eb318a3fcd55e597d13e92dbd7;hpb=bf9f7cea98616e7b780946e61068bd345e454915;p=mirror_edk2.git
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
index 6ad5f5f1ac..6a08e9a2de 100644
--- a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
+++ b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c
@@ -2,7 +2,7 @@
Functions implementation related with DHCPv6 for UefiPxeBc Driver.
(C) Copyright 2014 Hewlett-Packard Development Company, L.P.
- Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.
+ Copyright (c) 2009 - 2016, 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
@@ -92,18 +92,19 @@ PxeBcBuildDhcp6Options (
//
// Append client option request option
//
- OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_ORO);
- OptList[Index]->OpLen = HTONS (4);
+ OptList[Index]->OpCode = HTONS (DHCP6_OPT_ORO);
+ OptList[Index]->OpLen = HTONS (6);
OptEnt.Oro = (PXEBC_DHCP6_OPTION_ORO *) OptList[Index]->Data;
- OptEnt.Oro->OpCode[0] = HTONS(PXEBC_DHCP6_OPT_BOOT_FILE_URL);
- OptEnt.Oro->OpCode[1] = HTONS(PXEBC_DHCP6_OPT_BOOT_FILE_PARAM);
+ OptEnt.Oro->OpCode[0] = HTONS(DHCP6_OPT_BOOT_FILE_URL);
+ OptEnt.Oro->OpCode[1] = HTONS(DHCP6_OPT_BOOT_FILE_PARAM);
+ OptEnt.Oro->OpCode[2] = HTONS(DHCP6_OPT_DNS_SERVERS);
Index++;
OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
//
// Append client network device interface option
//
- OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_UNDI);
+ OptList[Index]->OpCode = HTONS (DHCP6_OPT_UNDI);
OptList[Index]->OpLen = HTONS ((UINT16)3);
OptEnt.Undi = (PXEBC_DHCP6_OPTION_UNDI *) OptList[Index]->Data;
@@ -123,7 +124,7 @@ PxeBcBuildDhcp6Options (
//
// Append client system architecture option
//
- OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_ARCH);
+ OptList[Index]->OpCode = HTONS (DHCP6_OPT_ARCH);
OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_ARCH));
OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *) OptList[Index]->Data;
Value = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);
@@ -134,7 +135,7 @@ PxeBcBuildDhcp6Options (
//
// Append vendor class option to store the PXE class identifier.
//
- OptList[Index]->OpCode = HTONS (PXEBC_DHCP6_OPT_VENDOR_CLASS);
+ OptList[Index]->OpCode = HTONS (DHCP6_OPT_VENDOR_CLASS);
OptList[Index]->OpLen = HTONS ((UINT16) sizeof (PXEBC_DHCP6_OPTION_VENDOR_CLASS));
OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;
OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);
@@ -216,10 +217,173 @@ PxeBcFreeBootFileOption (
}
}
+/**
+ Retrieve the boot server address using the EFI_DNS6_PROTOCOL.
+
+ @param[in] Private Pointer to PxeBc private data.
+ @param[in] HostName Pointer to buffer containing hostname.
+ @param[out] IpAddress On output, pointer to buffer containing IPv6 address.
+
+ @retval EFI_SUCCESS Operation succeeded.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.
+ @retval EFI_DEVICE_ERROR An unexpected network error occurred.
+ @retval Others Other errors as indicated.
+
+**/
+EFI_STATUS
+PxeBcDns6 (
+ IN PXEBC_PRIVATE_DATA *Private,
+ IN CHAR16 *HostName,
+ OUT EFI_IPv6_ADDRESS *IpAddress
+ )
+{
+ EFI_STATUS Status;
+ EFI_DNS6_PROTOCOL *Dns6;
+ EFI_DNS6_CONFIG_DATA Dns6ConfigData;
+ EFI_DNS6_COMPLETION_TOKEN Token;
+ EFI_HANDLE Dns6Handle;
+ EFI_IPv6_ADDRESS *DnsServerList;
+ BOOLEAN IsDone;
+
+ Dns6 = NULL;
+ Dns6Handle = NULL;
+ DnsServerList = Private->DnsServer;
+ ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));
+
+ //
+ // Create a DNSv6 child instance and get the protocol.
+ //
+ Status = NetLibCreateServiceChild (
+ Private->Controller,
+ Private->Image,
+ &gEfiDns6ServiceBindingProtocolGuid,
+ &Dns6Handle
+ );
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ Status = gBS->OpenProtocol (
+ Dns6Handle,
+ &gEfiDns6ProtocolGuid,
+ (VOID **) &Dns6,
+ Private->Image,
+ Private->Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ //
+ // Configure DNS6 instance for the DNS server address and protocol.
+ //
+ ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));
+ Dns6ConfigData.DnsServerCount = 1;
+ Dns6ConfigData.DnsServerList = DnsServerList;
+ Dns6ConfigData.EnableDnsCache = TRUE;
+ Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;
+ IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);
+ Status = Dns6->Configure (
+ Dns6,
+ &Dns6ConfigData
+ );
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ Token.Status = EFI_NOT_READY;
+ IsDone = FALSE;
+ //
+ // Create event to set the IsDone flag when name resolution is finished.
+ //
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ PxeBcCommonNotify,
+ &IsDone,
+ &Token.Event
+ );
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ //
+ // Start asynchronous name resolution.
+ //
+ Status = Dns6->HostNameToIp (Dns6, HostName, &Token);
+ if (EFI_ERROR (Status)) {
+ goto Exit;
+ }
+
+ while (!IsDone) {
+ Dns6->Poll (Dns6);
+ }
+
+ //
+ // Name resolution is done, check result.
+ //
+ Status = Token.Status;
+ if (!EFI_ERROR (Status)) {
+ if (Token.RspData.H2AData == NULL) {
+ Status = EFI_DEVICE_ERROR;
+ goto Exit;
+ }
+ if (Token.RspData.H2AData->IpCount == 0 || Token.RspData.H2AData->IpList == NULL) {
+ Status = EFI_DEVICE_ERROR;
+ goto Exit;
+ }
+ //
+ // We just return the first IPv6 address from DNS protocol.
+ //
+ IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);
+ Status = EFI_SUCCESS;
+ }
+
+Exit:
+ FreePool (HostName);
+
+ if (Token.Event != NULL) {
+ gBS->CloseEvent (Token.Event);
+ }
+ if (Token.RspData.H2AData != NULL) {
+ if (Token.RspData.H2AData->IpList != NULL) {
+ FreePool (Token.RspData.H2AData->IpList);
+ }
+ FreePool (Token.RspData.H2AData);
+ }
+
+ if (Dns6 != NULL) {
+ Dns6->Configure (Dns6, NULL);
+
+ gBS->CloseProtocol (
+ Dns6Handle,
+ &gEfiDns6ProtocolGuid,
+ Private->Image,
+ Private->Controller
+ );
+ }
+
+ if (Dns6Handle != NULL) {
+ NetLibDestroyServiceChild (
+ Private->Controller,
+ Private->Image,
+ &gEfiDns6ServiceBindingProtocolGuid,
+ Dns6Handle
+ );
+ }
+
+ if (DnsServerList != NULL) {
+ FreePool (DnsServerList);
+ }
+
+ return Status;
+}
/**
Parse the Boot File URL option.
+ @param[in] Private Pointer to PxeBc private data.
@param[out] FileName The pointer to the boot file name.
@param[in, out] SrvAddr The pointer to the boot server address.
@param[in] BootFile The pointer to the boot file URL option data.
@@ -232,6 +396,7 @@ PxeBcFreeBootFileOption (
**/
EFI_STATUS
PxeBcExtractBootFileUrl (
+ IN PXEBC_PRIVATE_DATA *Private,
OUT UINT8 **FileName,
IN OUT EFI_IPv6_ADDRESS *SrvAddr,
IN CHAR8 *BootFile,
@@ -247,8 +412,12 @@ PxeBcExtractBootFileUrl (
CHAR8 *ServerAddressOption;
CHAR8 *ServerAddress;
CHAR8 *ModeStr;
+ CHAR16 *HostName;
+ BOOLEAN IpExpressedUrl;
+ UINTN Len;
EFI_STATUS Status;
+ IpExpressedUrl = TRUE;
//
// The format of the Boot File URL option is:
//
@@ -264,8 +433,8 @@ PxeBcExtractBootFileUrl (
//
//
- // Based upon RFC 5970 and UEFI 2.3 Errata D specification, bootfile-url format
- // is tftp://[SERVER_ADDRESS]/BOOTFILE_NAME
+ // Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be
+ // tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME
// As an example where the BOOTFILE_NAME is the EFI loader and
// SERVER_ADDRESS is the ASCII encoding of an IPV6 address.
//
@@ -291,43 +460,76 @@ PxeBcExtractBootFileUrl (
// Get the part of SERVER_ADDRESS string.
//
ServerAddressOption = TmpStr;
- if (*ServerAddressOption != PXEBC_ADDR_START_DELIMITER) {
- FreePool (TmpStr);
- return EFI_INVALID_PARAMETER;
- }
+ if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {
+ ServerAddressOption ++;
+ ServerAddress = ServerAddressOption;
+ while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {
+ ServerAddress++;
+ }
+
+ if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {
+ FreePool (TmpStr);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *ServerAddress = '\0';
+
+ //
+ // Convert the string of server address to Ipv6 address format and store it.
+ //
+ Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);
+ if (EFI_ERROR (Status)) {
+ FreePool (TmpStr);
+ return Status;
+ }
- ServerAddressOption ++;
- ServerAddress = ServerAddressOption;
- while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {
- ServerAddress++;
- }
+ } else {
+ IpExpressedUrl = FALSE;
+ ServerAddress = ServerAddressOption;
+ while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {
+ ServerAddress++;
+ }
- if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {
- FreePool (TmpStr);
- return EFI_INVALID_PARAMETER;
- }
+ if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {
+ FreePool (TmpStr);
+ return EFI_INVALID_PARAMETER;
+ }
+ *ServerAddress = '\0';
- *ServerAddress = '\0';
+ Len = AsciiStrSize (ServerAddressOption);
+ HostName = AllocateZeroPool (Len * sizeof (CHAR16));
+ if (HostName == NULL) {
+ FreePool (TmpStr);
+ return EFI_OUT_OF_RESOURCES;
+ }
+ AsciiStrToUnicodeStrS (
+ ServerAddressOption,
+ HostName,
+ Len
+ );
- //
- // Convert the string of server address to Ipv6 address format and store it.
- //
- Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);
- if (EFI_ERROR (Status)) {
- FreePool (TmpStr);
- return Status;
+ //
+ // Perform DNS resolution.
+ //
+ Status = PxeBcDns6 (Private,HostName, SrvAddr);
+ if (EFI_ERROR (Status)) {
+ FreePool (TmpStr);
+ return Status;
+ }
}
//
// Get the part of BOOTFILE_NAME string.
//
BootFileNamePtr = (CHAR8*)((UINTN)ServerAddress + 1);
- if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {
- FreePool (TmpStr);
- return EFI_INVALID_PARAMETER;
+ if (IpExpressedUrl) {
+ if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {
+ FreePool (TmpStr);
+ return EFI_INVALID_PARAMETER;
+ }
+ ++BootFileNamePtr;
}
- ++BootFileNamePtr;
BootFileNameLen = (UINT16)(Length - (UINT16) ((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);
if (BootFileNameLen != 0 || FileName != NULL) {
//
@@ -471,17 +673,19 @@ PxeBcParseDhcp6Packet (
//
while (Offset < Length) {
- if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_IA_NA) {
+ if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {
Options[PXEBC_DHCP6_IDX_IA_NA] = Option;
- } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_BOOT_FILE_URL) {
+ } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {
//
// The server sends this option to inform the client about an URL to a boot file.
//
Options[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;
- } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_BOOT_FILE_PARAM) {
+ } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {
Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;
- } else if (NTOHS (Option->OpCode) == PXEBC_DHCP6_OPT_VENDOR_CLASS) {
+ } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {
Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;
+ } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {
+ Options[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;
}
Offset += (NTOHS (Option->OpLen) + 4);
@@ -497,7 +701,7 @@ PxeBcParseDhcp6Packet (
Option = PxeBcParseDhcp6Options (
Option->Data + 12,
NTOHS (Option->OpLen),
- PXEBC_DHCP6_OPT_STATUS_CODE
+ DHCP6_OPT_STATUS_CODE
);
if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {
IsProxyOffer = FALSE;
@@ -713,7 +917,7 @@ PxeBcRequestBootService (
Option = PxeBcDhcp6SeekOption (
ProxyOffer->Dhcp6.Option,
ProxyOffer->Length - 4,
- PXEBC_DHCP6_OPT_SERVER_ID
+ DHCP6_OPT_SERVER_ID
);
if (Option == NULL) {
return EFI_NOT_FOUND;
@@ -732,7 +936,7 @@ PxeBcRequestBootService (
OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *) RequestOpt)->OpLen);
if (OpCode != EFI_DHCP6_IA_TYPE_NA &&
OpCode != EFI_DHCP6_IA_TYPE_TA &&
- OpCode != PXEBC_DHCP6_OPT_SERVER_ID
+ OpCode != DHCP6_OPT_SERVER_ID
) {
//
// Copy all the options except IA option and Server ID
@@ -751,7 +955,7 @@ PxeBcRequestBootService (
Option = PxeBcDhcp6SeekOption (
Discover->DhcpOptions,
(UINT32)(RequestLen - 4),
- PXEBC_DHCP6_OPT_ELAPSED_TIME
+ DHCP6_OPT_ELAPSED_TIME
);
if (Option != NULL) {
CalcElapsedTime (Private);
@@ -864,6 +1068,7 @@ PxeBcRetryDhcp6Binl (
// Parse out the next server address from the last offer, and store it
//
Status = PxeBcExtractBootFileUrl (
+ Private,
&Private->BootFileName,
&Private->ServerIp.v6,
(CHAR8 *) (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),
@@ -1093,8 +1298,9 @@ PxeBcSelectDhcp6Offer (
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
- @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.
- @retval EFI_NO_RESPONSE No response to the following request packet.
+ @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.
+ @retval EFI_NO_RESPONSE No response to the following request packet.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
**/
EFI_STATUS
@@ -1115,6 +1321,17 @@ PxeBcHandleDhcp6Offer (
Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;
Status = EFI_SUCCESS;
+ //
+ // First try to cache DNS server address if DHCP6 offer provides.
+ //
+ if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {
+ Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));
+ if (Private->DnsServer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));
+ }
+
if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {
//
// DhcpBinl offer is selected, so need try to request bootfilename by this offer.
@@ -1702,6 +1919,14 @@ PxeBcDhcp6CallBack (
switch (Dhcp6Event) {
case Dhcp6SendSolicit:
+ if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
+ //
+ // If the to be sent packet exceeds the maximum length, abort the DHCP process.
+ //
+ Status = EFI_ABORTED;
+ break;
+ }
+
//
// Record the first Solicate msg time
//
@@ -1717,6 +1942,12 @@ PxeBcDhcp6CallBack (
case Dhcp6RcvdAdvertise:
Status = EFI_NOT_READY;
+ if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
+ //
+ // Ignore the incoming packets which exceed the maximum length.
+ //
+ break;
+ }
if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {
//
// Cache the dhcp offers to OfferBuffer[] for select later, and record
@@ -1727,6 +1958,14 @@ PxeBcDhcp6CallBack (
break;
case Dhcp6SendRequest:
+ if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
+ //
+ // If the to be sent packet exceeds the maximum length, abort the DHCP process.
+ //
+ Status = EFI_ABORTED;
+ break;
+ }
+
//
// Store the request packet as seed packet for discover.
//
@@ -1758,6 +1997,13 @@ PxeBcDhcp6CallBack (
break;
case Dhcp6RcvdReply:
+ if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
+ //
+ // Abort the DHCP if the Peply packet exceeds the maximum length.
+ //
+ Status = EFI_ABORTED;
+ break;
+ }
//
// Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data
// without verification.
@@ -2073,7 +2319,7 @@ PxeBcDhcp6Sarr (
return Status;
}
- ASSERT (Mode.Ia->State == Dhcp6Bound);
+ ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));
//
// DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the
// router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when
@@ -2082,7 +2328,12 @@ PxeBcDhcp6Sarr (
// to find a valid router address.
//
CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));
-
+ if (Mode.ClientId != NULL) {
+ FreePool (Mode.ClientId);
+ }
+ if (Mode.Ia != NULL) {
+ FreePool (Mode.Ia);
+ }
//
// Check the selected offer whether BINL retry is needed.
//