[syslinux] atftpd versus tftpd-hpa

[H. Peter Anvin]

On 07/09/2010 12:43 PM, Sebastian Herbszt wrote:
> Gene Cumm wrote:
>> It seems that tftpd-hpa is more suitable at serving arbitrarily large
>> files (greater than 65535 blocks long; with pxelinux.0 using a default
>> block size of 1408 this is 92,273,280 bytes) as atftpd will complain
>> in the log stating "Requested file to big, increase BLKSIZE".  I saw
>> that a while back HPA mentioned that atftpd was probably more scalable
>> (number of clients) while tftpd-hpa is more portable.  It looks like
>> tftpd-hpa supports block number rollover while atftpd doesn't seem to
>> (unless it's a runtime option that I can't find or a compile time
>> option).
>>
>> On the flip side, files this big are probably more suitably handled by
>> another means (gpxelinux.0 rather than pxelinux.0 with the large data
>> files on a standard web server).
>>
>> -- 
>> -Gene
> 
> I think atftpd-0.7_circumvent_tftp_size_restrictions.patch [1] fixes the issue.
> 
> [1] http://lists.opensuse.org/opensuse-commit/2008-09/msg00732.html 
> 

Incidentally, that patch is broken since it doesn't distinguishing
between multicast and non-multicast TFTP.  Furthermore, MAXBLOCKS seems
completely arbitrary.

	-hpa