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In function efi_http_service_binding_destroy_child() phandler is created as
as a local variable. If efi_search_protocol() fails, phandler will hold a
random value from the stack. Even it is not zero, we must not use it.
If efi_search_protocol() succeeds, the pointer has already be dereferenced,
so checking against NULL makes not sense here.
If ChildHandle is not a valid UEFI handle, we must return
EFI_INVALID_PARAMETER.
Use a single location for EFI_EXIT().
Addresses-Coverity-ID: CID 531974 (Unchecked return value)
Fixes: 5753dc3f6572 ("efi_loader: Prevent dereference of uninitialised variable")
Reviewed-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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If phandler is returned as NULL from efi_search_protocol then
protocol_interface is never assigned to. Instead return
EFI_UNSUPPORTED as per the spec.
This issue found by Smatch.
Also eliminate the use of the variable protocol_interface as it is not
needed.
Signed-off-by: Andrew Goodbody <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
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Add support for multiple efi_net_obj structs in efi_net.c. This comes
in preparation for an EFI network driver supporting multiple network
interfaces. For now the EFI network stack still registers a single ethernet
udevice as an EFI network device even if multiple are present, namely
the one that was the current device at the moment of EFI initialization.
Signed-off-by: Adriano Cordova <[email protected]>
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In preparation to support mutiple efi net udevices. Add a device path
cache to support device paths from multiple ethernet udevices.
The device paths can be added to the cache before EFI gets initialized and
the protocols get installed.
Signed-off-by: Adriano Cordova <[email protected]>
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The log category should be LOGC_EFI all over the EFI sub-system.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
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Add an EFI HTTP driver. This commit implements the
EFI_HTTP_PROTOCOL and the EFI_HTTP_SERVICE_BINDING_PROTOCOL.
The latter is attached to the handle of th efi network
device. This is the same handle where snp, pxe, and ipconfig
are attached to.
Signed-off-by: Adriano Cordova <[email protected]>
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