/** @file\r
Udp6 driver's whole implementation.\r
\r
- Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r
+ Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
- 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
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
interface. It's called to signal the udp TxToken when the IpIo layer completes\r
transmitting of the udp datagram.\r
\r
+ If Context is NULL, then ASSERT().\r
+ If NotifyData is NULL, then ASSERT().\r
+\r
@param[in] Status The completion status of the output udp datagram.\r
@param[in] Context Pointer to the context data.\r
@param[in] Sender Specify a EFI_IP6_PROTOCOL for sending.\r
/**\r
This function processes the received datagram passed up by the IpIo layer.\r
\r
+ If NetSession is NULL, then ASSERT().\r
+ If Packet is NULL, then ASSERT().\r
+ If Context is NULL, then ASSERT().\r
+\r
@param[in] Status The status of this udp datagram.\r
@param[in] IcmpError The IcmpError code, only available when Status is\r
EFI_ICMP_ERROR.\r
);\r
\r
/**\r
- This function cancle the token specified by Arg in the Map.\r
+ This function cancel the token specified by Arg in the Map.\r
\r
@param[in] Map Pointer to the NET_MAP.\r
@param[in] Item Pointer to the NET_MAP_ITEM.\r
@param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r
datagram.\r
\r
- @return Pointer to the structure wrapping the RxData and the Packet.\r
+ @return Pointer to the structure wrapping the RxData and the Packet. NULL will\r
+ be returned if any error occurs.\r
\r
**/\r
UDP6_RXDATA_WRAP *\r
);\r
\r
/**\r
- This function demultiplexes the received udp datagram to the apropriate instances.\r
+ This function demultiplexes the received udp datagram to the appropriate instances.\r
\r
@param[in] Udp6Service Pointer to the udp service context data.\r
- @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstrated from\r
+ @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstracted from\r
the received datagram.\r
@param[in] Packet Pointer to the buffer containing the received udp\r
datagram.\r
\r
IpIoDestroy (Udp6Service->IpIo);\r
Udp6Service->IpIo = NULL;\r
- \r
+\r
return Status;\r
}\r
\r
//\r
IpIoDestroy (Udp6Service->IpIo);\r
Udp6Service->IpIo = NULL;\r
- \r
+\r
ZeroMem (Udp6Service, sizeof (UDP6_SERVICE_DATA));\r
}\r
\r
\r
\r
/**\r
- This function intializes the new created udp instance.\r
+ This function initializes the new created udp instance.\r
\r
@param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.\r
@param[in, out] Instance Pointer to the un-initialized UDP6_INSTANCE_DATA.\r
\r
/**\r
This function tries to bind the udp instance according to the configured port\r
- allocation stragety.\r
+ allocation strategy.\r
\r
@param[in] InstanceList Pointer to the head of the list linking the udp\r
instances.\r
\r
if ((UdpSessionData->DestinationPort == 0) && (ConfigData->RemotePort == 0)) {\r
//\r
- // Ambiguous; no avalaible DestinationPort for this token.\r
+ // Ambiguous; no available DestinationPort for this token.\r
//\r
return EFI_INVALID_PARAMETER;\r
}\r
NetIp6IsUnspecifiedAddr (&ConfigData->RemoteAddress)\r
) {\r
//\r
- // The DestinationAddress is not specificed.\r
+ // The DestinationAddress is not specified.\r
//\r
return EFI_INVALID_PARAMETER;\r
}\r
pseudo HeadSum to reduce some overhead.\r
\r
@param[in] Packet Pointer to the NET_BUF contains the udp datagram.\r
- @param[in] HeadSum Checksum of the pseudo header, execpt the length\r
+ @param[in] HeadSum Checksum of the pseudo header, except the length\r
field.\r
\r
@return The 16-bit checksum of this udp datagram.\r
interface. It's called to signal the udp TxToken when IpIo layer completes the\r
transmitting of the udp datagram.\r
\r
+ If Context is NULL, then ASSERT().\r
+ If NotifyData is NULL, then ASSERT().\r
+\r
@param[in] Status The completion status of the output udp datagram.\r
@param[in] Context Pointer to the context data.\r
@param[in] Sender Specify a EFI_IP6_PROTOCOL for sending.\r
UDP6_INSTANCE_DATA *Instance;\r
EFI_UDP6_COMPLETION_TOKEN *Token;\r
\r
+ ASSERT (Context != NULL && NotifyData != NULL);\r
+\r
Instance = (UDP6_INSTANCE_DATA *) Context;\r
Token = (EFI_UDP6_COMPLETION_TOKEN *) NotifyData;\r
\r
/**\r
This function processes the received datagram passed up by the IpIo layer.\r
\r
+ If NetSession is NULL, then ASSERT().\r
+ If Packet is NULL, then ASSERT().\r
+ If Context is NULL, then ASSERT().\r
+\r
@param[in] Status The status of this udp datagram.\r
@param[in] IcmpError The IcmpError code, only available when Status is\r
EFI_ICMP_ERROR.\r
IN VOID *Context\r
)\r
{\r
+ ASSERT (NetSession != NULL && Packet != NULL && Context != NULL);\r
NET_CHECK_SIGNATURE (Packet, NET_BUF_SIGNATURE);\r
\r
//\r
\r
\r
/**\r
- This function cancle the token specified by Arg in the Map.\r
+ This function cancel the token specified by Arg in the Map.\r
\r
@param[in] Map Pointer to the NET_MAP.\r
@param[in] Item Pointer to the NET_MAP_ITEM.\r
from the received udp datagram.\r
\r
@retval TRUE The udp datagram matches the receiving requirements of the Instance.\r
- @retval FALSE The udp datagram does not matche the receiving requirements of the Instance.\r
+ @retval FALSE The udp datagram does not match the receiving requirements of the Instance.\r
\r
**/\r
BOOLEAN\r
@param[in] RxData Pointer to the EFI_UDP6_RECEIVE_DATA of this\r
datagram.\r
\r
- @return Pointer to the structure wrapping the RxData and the Packet.\r
+ @return Pointer to the structure wrapping the RxData and the Packet. NULL will\r
+ be returned if any error occurs.\r
\r
**/\r
UDP6_RXDATA_WRAP *\r
This function demultiplexes the received udp datagram to the appropriate instances.\r
\r
@param[in] Udp6Service Pointer to the udp service context data.\r
- @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstrated from\r
+ @param[in] NetSession Pointer to the EFI_NET_SESSION_DATA abstracted from\r
the received datagram.\r
@param[in] Packet Pointer to the buffer containing the received udp\r
datagram.\r
EFI_UDP6_SESSION_DATA *Udp6Session;\r
UINTN Enqueued;\r
\r
+ if (Packet->TotalSize < UDP6_HEADER_SIZE) {\r
+ NetbufFree (Packet);\r
+ return;\r
+ }\r
+\r
//\r
// Get the datagram header from the packet buffer.\r
//\r
Udp6Header = (EFI_UDP_HEADER *) NetbufGetByte (Packet, 0, NULL);\r
ASSERT (Udp6Header != NULL);\r
+ if (Udp6Header == NULL) {\r
+ NetbufFree (Packet);\r
+ return;\r
+ }\r
\r
if (Udp6Header->Checksum != 0) {\r
//\r
//\r
// Wrong checksum.\r
//\r
+ NetbufFree (Packet);\r
return;\r
}\r
}\r
\r
- gRT->GetTime (&RxData.TimeStamp, NULL);\r
-\r
Udp6Session = &RxData.UdpSession;\r
Udp6Session->SourcePort = NTOHS (Udp6Header->SrcPort);\r
Udp6Session->DestinationPort = NTOHS (Udp6Header->DstPort);\r
//\r
Ip6ModeData = AllocateZeroPool (sizeof (EFI_IP6_MODE_DATA));\r
ASSERT (Ip6ModeData != NULL);\r
+ if (Ip6ModeData == NULL) {\r
+ goto EXIT;\r
+ }\r
\r
//\r
// If not finding the related IpSender use the default IpIo to send out\r
//\r
IcmpErrHdr = (IP6_ICMP_ERROR_HEAD *) NetbufAllocSpace (Packet, Len, FALSE);\r
ASSERT (IcmpErrHdr != NULL);\r
+ if (IcmpErrHdr == NULL) {\r
+ goto EXIT;\r
+ }\r
\r
//\r
// Set the required fields for the icmp port unreachable message.\r
);\r
\r
//\r
- // Set the checksum as zero, and IP6 driver will calcuate it with pseudo header.\r
+ // Set the checksum as zero, and IP6 driver will calculate it with pseudo header.\r
//\r
IcmpErrHdr->Head.Checksum = 0;\r
\r
LIST_ENTRY *Entry;\r
UDP6_INSTANCE_DATA *Instance;\r
\r
+ if (Packet->TotalSize < UDP6_HEADER_SIZE) {\r
+ NetbufFree (Packet);\r
+ return;\r
+ }\r
+\r
Udp6Header = (EFI_UDP_HEADER *) NetbufGetByte (Packet, 0, NULL);\r
ASSERT (Udp6Header != NULL);\r
+ if (Udp6Header == NULL) {\r
+ NetbufFree (Packet);\r
+ return;\r
+ }\r
\r
IP6_COPY_ADDRESS (&Udp6Session.SourceAddress, &NetSession->Source);\r
IP6_COPY_ADDRESS (&Udp6Session.DestinationAddress, &NetSession->Dest);\r
{\r
}\r
\r
-\r
-/**\r
- Set the Udp6 variable data.\r
-\r
- @param[in] Udp6Service Udp6 service data.\r
-\r
- @retval EFI_OUT_OF_RESOURCES There are not enough resources to set the\r
- variable.\r
- @retval other Set variable failed.\r
-\r
-**/\r
-EFI_STATUS\r
-Udp6SetVariableData (\r
- IN UDP6_SERVICE_DATA *Udp6Service\r
- )\r
-{\r
- UINT32 NumConfiguredInstance;\r
- LIST_ENTRY *Entry;\r
- UINTN VariableDataSize;\r
- EFI_UDP6_VARIABLE_DATA *Udp6VariableData;\r
- EFI_UDP6_SERVICE_POINT *Udp6ServicePoint;\r
- UDP6_INSTANCE_DATA *Udp6Instance;\r
- CHAR16 *NewMacString;\r
- EFI_STATUS Status;\r
-\r
- NumConfiguredInstance = 0;\r
-\r
- //\r
- // Go through the children list to count the configured children.\r
- //\r
- NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r
- Udp6Instance = NET_LIST_USER_STRUCT_S (\r
- Entry,\r
- UDP6_INSTANCE_DATA,\r
- Link,\r
- UDP6_INSTANCE_DATA_SIGNATURE\r
- );\r
-\r
- if (Udp6Instance->Configured) {\r
- NumConfiguredInstance++;\r
- }\r
- }\r
-\r
- //\r
- // Calculate the size of the Udp6VariableData. As there may be no Udp6 child,\r
- // we should add extra buffer for the service points only if the number of configured\r
- // children is more than 1.\r
- //\r
- VariableDataSize = sizeof (EFI_UDP6_VARIABLE_DATA);\r
-\r
- if (NumConfiguredInstance > 1) {\r
- VariableDataSize += sizeof (EFI_UDP6_SERVICE_POINT) * (NumConfiguredInstance - 1);\r
- }\r
-\r
- Udp6VariableData = AllocateZeroPool (VariableDataSize);\r
- if (Udp6VariableData == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- Udp6VariableData->DriverHandle = Udp6Service->ImageHandle;\r
- Udp6VariableData->ServiceCount = NumConfiguredInstance;\r
-\r
- Udp6ServicePoint = &Udp6VariableData->Services[0];\r
-\r
- //\r
- // Go through the children list to fill the configured children's address pairs.\r
- //\r
- NET_LIST_FOR_EACH (Entry, &Udp6Service->ChildrenList) {\r
- Udp6Instance = NET_LIST_USER_STRUCT_S (\r
- Entry,\r
- UDP6_INSTANCE_DATA,\r
- Link,\r
- UDP6_INSTANCE_DATA_SIGNATURE\r
- );\r
-\r
- if (Udp6Instance->Configured) {\r
- Udp6ServicePoint->InstanceHandle = Udp6Instance->ChildHandle;\r
- Udp6ServicePoint->LocalPort = Udp6Instance->ConfigData.StationPort;\r
- Udp6ServicePoint->RemotePort = Udp6Instance->ConfigData.RemotePort;\r
-\r
- IP6_COPY_ADDRESS (\r
- &Udp6ServicePoint->LocalAddress,\r
- &Udp6Instance->ConfigData.StationAddress\r
- );\r
- IP6_COPY_ADDRESS (\r
- &Udp6ServicePoint->RemoteAddress,\r
- &Udp6Instance->ConfigData.RemoteAddress\r
- );\r
- Udp6ServicePoint++;\r
- }\r
- }\r
-\r
- //\r
- // Get the MAC string.\r
- //\r
- Status = NetLibGetMacString (\r
- Udp6Service->ControllerHandle,\r
- Udp6Service->ImageHandle,\r
- &NewMacString\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto EXIT;\r
- }\r
-\r
- if (Udp6Service->MacString != NULL) {\r
- //\r
- // The variable is set already, we're going to update it.\r
- //\r
- if (StrCmp (Udp6Service->MacString, NewMacString) != 0) {\r
- //\r
- // The MAC address is changed, delete the previous variable first.\r
- //\r
- gRT->SetVariable (\r
- Udp6Service->MacString,\r
- &gEfiUdp6ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- 0,\r
- NULL\r
- );\r
- }\r
-\r
- FreePool (Udp6Service->MacString);\r
- }\r
-\r
- Udp6Service->MacString = NewMacString;\r
-\r
- Status = gRT->SetVariable (\r
- Udp6Service->MacString,\r
- &gEfiUdp6ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- VariableDataSize,\r
- (VOID *) Udp6VariableData\r
- );\r
-\r
-EXIT:\r
-\r
- FreePool (Udp6VariableData);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Clear the variable and free the resource.\r
-\r
- @param[in, out] Udp6Service Udp6 service data.\r
-\r
-**/\r
-VOID\r
-Udp6ClearVariableData (\r
- IN OUT UDP6_SERVICE_DATA *Udp6Service\r
- )\r
-{\r
- ASSERT (Udp6Service->MacString != NULL);\r
-\r
- gRT->SetVariable (\r
- Udp6Service->MacString,\r
- &gEfiUdp6ServiceBindingProtocolGuid,\r
- EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
- 0,\r
- NULL\r
- );\r
-\r
- FreePool (Udp6Service->MacString);\r
- Udp6Service->MacString = NULL;\r
-}\r
-\r
-\r
/**\r
Find the key in the netmap.\r
\r
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