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Scrubbed part of the code.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6548 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jgong5
2008-11-14 09:16:11 +00:00
parent faac3f0cfe
commit f92046412a
6 changed files with 750 additions and 243 deletions
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142
MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Driver.c
View File

@@ -31,19 +31,23 @@ EFI_DRIVER_BINDING_PROTOCOL gDhcp4DriverBinding = {
NULL
};
EFI_SERVICE_BINDING_PROTOCOL mDhcp4ServiceBindingTemplete = {
EFI_SERVICE_BINDING_PROTOCOL mDhcp4ServiceBindingTemplate = {
Dhcp4ServiceBindingCreateChild,
Dhcp4ServiceBindingDestroyChild
};
/**
This is the declaration of an EFI image entry point. This entry point is
the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
both device drivers and bus drivers.
Entry point of the DHCP driver to install various protocols.
@param ImageHandle The image handle of the driver.
@param SystemTable The system table.
@param ImageHandle The firmware allocated handle for the UEFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCES if the driver binding and component name protocols are successfully
@retval Others Failed to install the protocols.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
**/
EFI_STATUS
@@ -65,15 +69,21 @@ Dhcp4DriverEntryPoint (
/**
Test to see if DHCP driver supports the ControllerHandle.
Test to see if this driver supports ControllerHandle. This service
is called by the EFI boot service ConnectController(). In
order to make drivers as small as possible, there are a few calling
restrictions for this service. ConnectController() must
follow these calling restrictions. If any other agent wishes to call
Supported() it must also follow these calling restrictions.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCES This driver supports this device
@retval other This driver does not support this device
@retval EFI_SUCCESS This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device
@retval other This driver does not support this device
**/
EFI_STATUS
@@ -144,12 +154,12 @@ DhcpConfigUdpIo (
/**
Destory the DHCP service. The Dhcp4 service may be partly initialized,
or partly destoried. If a resource is destoried, it is marked as so in
case the destory failed and being called again later.
or partly destroyed. If a resource is destroyed, it is marked as so in
case the destroy failed and being called again later.
@param DhcpSb The DHCP service instance to destory.
@retval EFI_SUCCESS The DHCP service is successfully closed.
@retval EFI_SUCCESS Always return success.
**/
EFI_STATUS
@@ -187,6 +197,7 @@ Dhcp4CloseService (
@retval EFI_OUT_OF_RESOURCES Failed to allocate resource .
@retval EFI_SUCCESS The DHCP service instance is created.
@retval other Other error occurs.
**/
EFI_STATUS
@@ -207,7 +218,6 @@ Dhcp4CreateService (
}
DhcpSb->Signature = DHCP_SERVICE_SIGNATURE;
DhcpSb->ServiceBinding = mDhcp4ServiceBindingTemplete;
DhcpSb->ServiceState = DHCP_UNCONFIGED;
DhcpSb->InDestory = FALSE;
DhcpSb->Controller = Controller;
@@ -215,7 +225,11 @@ Dhcp4CreateService (
InitializeListHead (&DhcpSb->Children);
DhcpSb->DhcpState = Dhcp4Stopped;
DhcpSb->Xid = NET_RANDOM (NetRandomInitSeed ());
CopyMem (
&DhcpSb->ServiceBinding,
&mDhcp4ServiceBindingTemplate,
sizeof (EFI_SERVICE_BINDING_PROTOCOL)
);
//
// Create various resources, UdpIo, Timer, and get Mac address
//
@@ -254,16 +268,21 @@ ON_ERROR:
/**
Start this driver on ControllerHandle.
Start this driver on ControllerHandle. This service is called by the
EFI boot service ConnectController(). In order to make
drivers as small as possible, there are a few calling restrictions for
this service. ConnectController() must follow these
calling restrictions. If any other agent wishes to call Start() it
must also follow these calling restrictions.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCES This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS
@@ -329,16 +348,21 @@ ON_ERROR:
/**
Stop this driver on ControllerHandle.
Stop this driver on ControllerHandle. This service is called by the
EFI boot service DisconnectController(). In order to
make drivers as small as possible, there are a few calling
restrictions for this service. DisconnectController()
must follow these calling restrictions. If any other agent wishes
to call Stop() it must also follow these calling restrictions.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number
of children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCES This driver is removed ControllerHandle
@retval other This driver was not removed from this device
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
@@ -424,7 +448,7 @@ Dhcp4DriverBindingStop (
/**
Initialize a new DHCP child.
Initialize a new DHCP instance.
@param DhcpSb The dhcp service instance
@param Instance The dhcp instance to initialize
@@ -434,8 +458,8 @@ Dhcp4DriverBindingStop (
**/
VOID
DhcpInitProtocol (
IN DHCP_SERVICE *DhcpSb,
IN DHCP_PROTOCOL *Instance
IN DHCP_SERVICE *DhcpSb,
IN OUT DHCP_PROTOCOL *Instance
)
{
Instance->Signature = DHCP_PROTOCOL_SIGNATURE;
@@ -453,18 +477,18 @@ DhcpInitProtocol (
/**
Creates a child handle with a set of DHCP4 services.
Creates a child handle with a set of I/O services.
@param This Protocol instance pointer.
@param ChildHandle Pointer to the handle of the child to create. If
it is NULL, then a new handle is created. If it
is not NULL, then the DHCP4 services are added to
the existing child handle.
@param This Protocol instance pointer.
@param ChildHandle Pointer to the handle of the child to create. If it is NULL,
then a new handle is created. If it is not NULL, then the
I/O services are added to the existing child handle.
@retval EFI_SUCCES The child handle was created with the DHCP4
services
@retval EFI_OUT_OF_RESOURCES There are not enough resources to create the child
@retval other The child handle was not created
@retval EFI_SUCCES The child handle was created with the I/O services
@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
@retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create
the child
@retval other The child handle was not created
**/
EFI_STATUS
@@ -545,18 +569,18 @@ Dhcp4ServiceBindingCreateChild (
/**
Destroys a child handle with a set of DHCP4 services.
Destroys a child handle with a set of I/O services.
@param This Protocol instance pointer.
@param ChildHandle Handle of the child to destroy
@param This Protocol instance pointer.
@param ChildHandle Handle of the child to destroy
@retval EFI_SUCCES The DHCP4 service is removed from the child handle
@retval EFI_UNSUPPORTED The child handle does not support the DHCP4
service
@retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.
@retval EFI_ACCESS_DENIED The child handle could not be destroyed because
its DHCP4 services are being used.
@retval other The child handle was not destroyed
@retval EFI_SUCCES The I/O services were removed from the child handle
@retval EFI_UNSUPPORTED The child handle does not support the I/O services
that are being removed.
@retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.
@retval EFI_ACCESS_DENIED The child handle could not be destroyed because its
I/O services are being used.
@retval other The child handle was not destroyed
**/
EFI_STATUS
@@ -600,8 +624,8 @@ Dhcp4ServiceBindingDestroyChild (
}
//
// A child can be destoried more than once. For example,
// Dhcp4DriverBindingStop will destory all of its children.
// A child can be destroyed more than once. For example,
// Dhcp4DriverBindingStop will destroy all of its children.
// when caller driver is being stopped, it will destory the
// dhcp child it opens.
//