kern/117234: ipfw send_pkt() and ipfw_tick() don't seem to support IPV6

John Court john.w.court at nokia.com
Tue Oct 16 00:50:02 PDT 2007


>Number:         117234
>Category:       kern
>Synopsis:       ipfw send_pkt() and ipfw_tick() don't seem to support IPV6
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Oct 16 07:50:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     John Court
>Release:        6.1
>Organization:
Nokia
>Environment:
Hmm sorry but this was found from a review of the code and observance of an issue when porting it to another FreeBSD based platform.
>Description:
I can't see how the send_pkt() routine in ip_fw2.c would create a valid ipv6 
source and destination address.  This is relevent due to its use in 
ipfw_tick(). Basically in an ipv6 configuration when ipfw_tick() goes 
off to send a keep-alive, I think send_pkt() would produce an 
erroneous IPV4 style packet due to its use of id->dst_ip and id->src_ip rather
than  dst_ip6 and src_ip6 ?   

Further, ipfw_tick() then calls ip_output() rather than any ip6_output() routine.

Cheers

John
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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