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Don't append an empty cert list to MokListRT if vendor_cert_size is 0.

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Signed-off-by: Peter Jones <pjones@redhat.com>
This commit is contained in:
Peter Jones 2014-10-02 00:02:43 -04:00
parent a16340e3f7
commit ada75ade4c
1 changed files with 35 additions and 30 deletions
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65
shim.c
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@ -1698,37 +1698,42 @@ EFI_STATUS mirror_mok_list()
if (efi_status != EFI_SUCCESS)
DataSize = 0;
FullDataSize = DataSize
+ sizeof (*CertList)
+ sizeof (EFI_GUID)
+ vendor_cert_size
;
FullData = AllocatePool(FullDataSize);
if (!FullData) {
perror(L"Failed to allocate space for MokListRT\n");
return EFI_OUT_OF_RESOURCES;
if (vendor_cert_size) {
FullDataSize = DataSize
+ sizeof (*CertList)
+ sizeof (EFI_GUID)
+ vendor_cert_size
;
FullData = AllocatePool(FullDataSize);
if (!FullData) {
perror(L"Failed to allocate space for MokListRT\n");
return EFI_OUT_OF_RESOURCES;
}
p = FullData;
if (efi_status == EFI_SUCCESS && DataSize > 0) {
CopyMem(p, Data, DataSize);
p += DataSize;
}
CertList = (EFI_SIGNATURE_LIST *)p;
p += sizeof (*CertList);
CertData = (EFI_SIGNATURE_DATA *)p;
p += sizeof (EFI_GUID);
CertList->SignatureType = EFI_CERT_X509_GUID;
CertList->SignatureListSize = vendor_cert_size
+ sizeof (*CertList)
+ sizeof (*CertData)
-1;
CertList->SignatureHeaderSize = 0;
CertList->SignatureSize = vendor_cert_size + sizeof (EFI_GUID);
CertData->SignatureOwner = SHIM_LOCK_GUID;
CopyMem(p, vendor_cert, vendor_cert_size);
} else {
FullDataSize = DataSize;
FullData = Data;
}
p = FullData;
if (efi_status == EFI_SUCCESS && DataSize > 0) {
CopyMem(p, Data, DataSize);
p += DataSize;
}
CertList = (EFI_SIGNATURE_LIST *)p;
p += sizeof (*CertList);
CertData = (EFI_SIGNATURE_DATA *)p;
p += sizeof (EFI_GUID);
CertList->SignatureType = EFI_CERT_X509_GUID;
CertList->SignatureListSize = vendor_cert_size
+ sizeof (*CertList)
+ sizeof (*CertData)
-1;
CertList->SignatureHeaderSize = 0;
CertList->SignatureSize = vendor_cert_size + sizeof (EFI_GUID);
CertData->SignatureOwner = SHIM_LOCK_GUID;
CopyMem(p, vendor_cert, vendor_cert_size);
efi_status = uefi_call_wrapper(RT->SetVariable, 5, L"MokListRT",
&shim_lock_guid,