misc/180572: SLAAC is enabled for ipv6_cpe_wanif

[Shuichi KITAGUCHI]

>Number:         180572
>Category:       misc
>Synopsis:       SLAAC is enabled for ipv6_cpe_wanif
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 15 10:30:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Shuichi KITAGUCHI
>Release:        9.1-RELEASE
>Organization:
>Environment:
FreeBSD themis.k.ysnb.net 9.1-RELEASE-p4 FreeBSD 9.1-RELEASE-p4 #0: Mon Jun 17 11:38:17 UTC 2013     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
In /etc/rc.conf, ipv6_cpe_wanif was introduced from 9.0-RELEASE for enabling accept_rtadv flag to outgoing interface. But rtsol is not executed on outgoing interface when ipv6_gateway_enable is "YES". Therefore my FreeBSD router cannot get prefix from upstream.
>How-To-Repeat:
In /etc/rc.conf
  ipv6_gateway_enable="YES"
  ipv6_cpe_wanif="OUTIF"
and reboot machine.
>Fix:
When ipv6_cpe_wanif is set, I suppose rtsol should be executed regardless of ipv6_gateway_enable. Attached patch fixes this problem but this could be accepted?

Patch attached with submission follows:

--- network.subr.old	2012-12-31 20:12:00.000000000 +0900
+++ network.subr	2013-07-15 18:51:45.000000000 +0900
@@ -480,6 +480,9 @@
 	if ! ipv6if $_if; then
 		return 1
 	fi
+	if [ "${ipv6_cpe_wanif}" = "${_if}" ]; then
+		return 0
+	fi
 	if checkyesno ipv6_gateway_enable; then
 		return 1
 	fi


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