Do you always open for read access (even when also opening with writing)? I think that some need read/write even when really opening for writing only…
From: Leandro Becker [mailto:lbec...@positivo.com.br] Sent: Friday, March 28, 2014 10:31 AM To: edk2-devel@lists.sourceforge.net Subject: Re: [edk2] INVALID PARAMETER when opening a file for writing Hello, Try also using the read and create flags. I had a problem like this and passing those flags the file could be opened and written. Best Regards Leandro Becker >>> Em Quinta, 27 de Março de 2014 às 13:50, na mensagem >>> <98d4070157384f6aa641a82900863...@amspr02mb229.eurprd02.prod.outlook.com<mailto:98d4070157384f6aa641a82900863...@amspr02mb229.eurprd02.prod.outlook.com>>, >>> "miguelro...@ua.pt<mailto:miguelro...@ua.pt>" >>> <miguelro...@ua.pt<mailto:miguelro...@ua.pt>> gravou: Hello all, I'm getting an error when trying to open a file for writing. I have no problems when I open the same file with read permissions. I'm using the following code: EFI_FILE_IO_INTERFACE * get_io_interface(EFI_HANDLE image) { EFI_STATUS status; EFI_HANDLE loadedImHandle; EFI_FILE_IO_INTERFACE * vol; EFI_LOADED_IMAGE *li; status = uefi_call_wrapper( BS->HandleProtocol, 3, image, &LoadedImageProtocol, (void **) &li); if( status != EFI_SUCCESS ) return NULL; loadedImHandle = li->DeviceHandle; status = uefi_call_wrapper( BS->HandleProtocol, 3, loadedImHandle, &FileSystemProtocol, (void **)&vol ); if(status != EFI_SUCCESS) return NULL; return vol; } EFI_FILE_HANDLE get_file_handle(EFI_HANDLE image, UINT64 mode) { EFI_STATUS status; EFI_FILE_IO_INTERFACE * vol; EFI_FILE_HANDLE root; EFI_FILE_HANDLE fp; vol = get_io_interface(image); if( vol == NULL) return NULL; status = uefi_call_wrapper( vol->OpenVolume, 2, vol, &root); if( status != EFI_SUCCESS ) return NULL; status = uefi_call_wrapper( root->Open, 5, root, &fp, ticket_file, mode, 0 ); Print(L"Open=%d\n", status); // I get status = 2 (INVALID_PARAMETER) if( status != EFI_SUCCESS ) return NULL; return fp; } // pseudo-code EFI_STATUS efi_main(EFI_HANDLE image) { //.... get_file_handle (image, EFI_FILE_MODE_WRITE); } (#define EFI_FILE_MODE_WRITE 0x0000000000000002) I'm using GNUEFI lib. Am I missing something or Ovmf does not support file writing? Regards, Miguel Rocha ------------------------------------------------------------------------------ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/edk2-devel
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