[gentoo-dev] rfc: only the loopback interface should provide net

[William Hubbs <williamh@gentoo.org>]

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All,

I've been pondering for a while why All of OpenRC's network interfaces
provide net.

My understanding of the "net" service is that it is there to signal that
a generic network connection is active.

What I would like to do in OpenRC is change the network scripts so that
only the loopback interface provides net.

The down side of this approach will be that if a daemon uses a specific
ip address in its configuration, or if it binds to a specific address,
the user will have to set up the appropriate configuration options in
/etc/conf.d. For example, if I setup sshd to use 192.168.10.1 and eth0 has
this address, I have to put the following line in /etc/conf.d/sshd:

rc_need="net.eth0"

One advantage I see of this approach is it will provide a fix for bugs like
http://bugs.gentoo.org/show_bug.cgi?id=228973 by requiring users to
configure services like this to start after the interface they use
is started.

Attached to this message you will find the patch I want to apply to
OpenRC to make this change.

Any thoughts, comments, or suggestions would be helpful.

William


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From cf57aa084dfa3020c9f0ae1f3a07e2fbf2e588dc Mon Sep 17 00:00:00 2001
From: William Hubbs <williamh@gentoo.org>
Date: Mon, 6 Feb 2012 09:24:52 -0600
Subject: [PATCH] Only the loopback interface should provide net

---
 init.d/net.lo.in |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/init.d/net.lo.in b/init.d/net.lo.in
index bf2d848..b3d2b1a 100644
--- a/init.d/net.lo.in
+++ b/init.d/net.lo.in
@@ -20,11 +20,10 @@ depend()
 
 	need localmount
 	after bootmisc
-	provide net
 	keyword -jail -prefix -vserver
 
 	case "${IFACE}" in
-		lo|lo0);;
+		lo|lo0) provide net;;
 		*) after net.lo net.lo0 dbus;;
 	esac
 
-- 
1.7.3.4


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