Michael Welle wrote:
Hi,
I wanted to net boot some Sparc machines using dnsmasq:
dhcp-option=17,"/export/elena/root"
dhcp-boot=/tftpboot/boot.net.netbsd,bootsvr,192.168.42.1
But setting the root-path doesn't work if the path is longer than 8
characters. The first condition in do_opt() (rfc2131.c) evaluates to
true and the operation returns immediately. Is this a configuration
error or a bug in dnsmasq?
That code is checking for overflow, so it looks like you are generating
a DHCP packet that's too big. Are you sending lots of options? If so,
and there's some which aren't necessary, a simple workaround would be to
trim the number of options so they fit in a minimum-sixed DHCP packet.
There exist facilities in the protocol to negotiate a larger packet size
when both client and server support it: that's not currently implemented
in dnsmasq, but it would provide another solution if it were.
Cheers,
Simon.
