Hi Matt,
I think this is the problematic chunk of code,static int efivars_unlink(struct inode *dir, struct dentry *dentry) { struct efivar_entry *var = dentry->d_inode->i_private; struct efivars *efivars = var->efivars; efi_status_t status; spin_lock(&efivars->lock); status = efivars->ops->set_variable(var->var.VariableName, &var->var.VendorGuid, 0, 0, NULL); For deleting authenticated variables Attributes, DataSize and Data need to be non-zero. I think DataSize == AuthInfo descriptor. Peter?
That's correct, but we can't use unlink to delete a secure variable, we need to do a write instead, in order to provide the authentication descriptor.
But yes, we may need to alter the efivars_file_write path so that such a write actually results in the dentry being removed...
Cheers, Jeremy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
