[RFC PATCH v2 09/11] ima: load policy using path

[Luis R. Rodriguez]

On Mon, Jan 18, 2016 at 10:11:24AM -0500, Mimi Zohar wrote:
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -903,6 +903,27 @@ out:
>  	return ret;
>  }
>  
> +int kernel_read_file_from_path(char *path, void **buf, loff_t *size,
> +			       loff_t max_size, int policy_id)
> +{
> +	struct file *file;
> +	int ret;
> +
> +	if (!path || !*path)
> +		return -EINVAL;
> +
> +	file = filp_open(path, O_RDONLY, 0);
> +	if (IS_ERR(file)) {
> +		ret = PTR_ERR(file);
> +		pr_err("Unable to open file: %s (%d)", path, ret);
> +		return ret;
> +	}
> +
> +	ret = kernel_read_file(file, buf, size, max_size, policy_id);
> +	fput(file);
> +	return ret;
> +}
> +

EXPORT_SYMBOL_GPL() needed.

  Luis