[RTEMS Project] #1405: dhcp request includes host name option even if hostname is zero length.

RTEMS trac trac at rtems.org
Thu Dec 15 16:51:36 UTC 2022


#1405: dhcp request includes host name option even if hostname is zero length.
----------------------------+----------------------------
 Reporter:  Tim Cussins     |       Owner:  Needs Funding
     Type:  defect          |      Status:  assigned
 Priority:  normal          |   Milestone:  4.9.5
Component:  network/legacy  |     Version:  4.9
 Severity:  normal          |  Resolution:
 Keywords:                  |  Blocked By:
 Blocking:                  |
----------------------------+----------------------------
Changes (by Joel Sherrill):

 * owner:  Joel Sherrill => Needs Funding


Old description:

> DHCP requests add the hostname option in dhcp_request_req() - this is
> cool, except that the dhcp spec requires that this option has a length >=
> 1 char.
>
> http://www.networksorcery.com/enp/rfc/rfc2132.txt
>
> 3.14. Host Name Option
>
> <snip>
> The code for this option is 12, and its minimum length is 1.
> </snip>
>
> At present, the hostname is added regardless. This appears to trigger a
> bug in a specific Netgear router that causes it's dhcp process to lock
> up.

New description:

 DHCP requests add the hostname option in dhcp_request_req() - this is
 cool, except that the dhcp spec requires that this option has a length >=
 1 char.

 http://www.networksorcery.com/enp/rfc/rfc2132.txt

 3.14. Host Name Option

 <snip>
 The code for this option is 12, and its minimum length is 1.
 </snip>

 At present, the hostname is added regardless. This appears to trigger a
 bug in a specific Netgear router that causes it's dhcp process to lock up.

--

Comment:

 Reassigning legacy stack issues to Needs Funding.

--
Ticket URL: <http://devel.rtems.org/ticket/1405#comment:7>
RTEMS Project <http://www.rtems.org/>
RTEMS Project


More information about the bugs mailing list