[U-Boot] tftp reliability

[Ran Shalit]

On Tue, Sep 19, 2017 at 7:04 AM, Chris Packham <judge.packham at gmail.com> wrote:
> On Tue, Sep 19, 2017 at 8:26 AM, Ran Shalit <ranshalit at 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


Chris, Bob,

Thank you very much.
Ran