/** @file\r
Udp6 driver's whole implementation.\r
\r
- Copyright (c) 2009 - 2010, 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
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
@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
\r
IpIoDestroy (Udp6Service->IpIo);\r
+ Udp6Service->IpIo = NULL;\r
\r
return Status;\r
}\r
// Destroy the IpIo.\r
//\r
IpIoDestroy (Udp6Service->IpIo);\r
+ Udp6Service->IpIo = NULL;\r
+\r
+ ZeroMem (Udp6Service, sizeof (UDP6_SERVICE_DATA));\r
}\r
\r
\r
Instance->IcmpError = EFI_SUCCESS;\r
Instance->Configured = FALSE;\r
Instance->IsNoMapping = FALSE;\r
- Instance->Destroyed = FALSE;\r
+ Instance->InDestroy = FALSE;\r
}\r
\r
\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
@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
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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