Re: [U-Boot] tftp reliability

On Tue, Sep 19, 2017 at 8:26 AM, Ran Shalit ranshalit@gmail.com wrote:

Hello,

Does tftp checks the integrity of the file with checksum or any other similar method ? If not - how can it assure the reliability of the file that was transferred ?

In short it doesn't. Beyond a simple block id and ack there is nothing that ensures what was sent is what was received.

You need to rely on something else to verify the data. Fortunately u-boot supports some options for doing so. At $dayjob we use FIT[1] images for our firmware which can include multiple hashes and even signatures if desired.

[1] - http://git.denx.de/?p=u-boot.git;a=tree;f=doc/uImage.FIT