From 2de401bca120f445d803f996e883d2e4da5d379d Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Thu, 18 Sep 2008 22:24:58 +0000
Subject: [PATCH] Enable bonding via sysfs, #104 thanks to Wolfram Schlich

---
 doc/net.example.Linux.in |  3 ++-
 net/bonding.sh           | 19 +++++++++++++++----
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/doc/net.example.Linux.in b/doc/net.example.Linux.in
index 28a2fb98..701e1b16 100644
--- a/doc/net.example.Linux.in
+++ b/doc/net.example.Linux.in
@@ -569,7 +569,8 @@
 
 #-----------------------------------------------------------------------------
 # Bonding
-# For link bonding/trunking emerge net-misc/ifenslave
+# For link bonding/trunking on 2.4 kernels, or kernels without sysfs
+# emerge net-misc/ifenslave
 
 # To bond interfaces together
 #slaves_bond0="eth0 eth1 eth2"
diff --git a/net/bonding.sh b/net/bonding.sh
index 69de32aa..99a85170 100644
--- a/net/bonding.sh
+++ b/net/bonding.sh
@@ -4,7 +4,6 @@
 bonding_depend()
 {
 	before interface macchanger
-	program /sbin/ifenslave
 }
 
 _config_vars="$_config_vars slaves"
@@ -53,7 +52,7 @@ bonding_pre_start()
 	# Must force the slaves to a particular state before adding them
 	for IFACE in ${slaves}; do
 		_delete_addresses
-		_up
+		_down
 	done
 	)
 
@@ -62,7 +61,13 @@ bonding_pre_start()
 
 	# finally add in slaves
 	eoutdent
-	/sbin/ifenslave "${IFACE}" ${slaves} >/dev/null
+	if [ -d /sys/class/net ]; then
+		for s in ${slaves}; do
+			echo "+${s}" >/sys/class/net/"${IFACE}"/bonding/slaves
+		done
+	else
+		/sbin/ifenslave "${IFACE}" ${slaves} >/dev/null
+	fi
 	eend $?
 
 	return 0 #important
@@ -84,7 +89,13 @@ bonding_stop()
 	eindent
 	einfo "${slaves}"
 	eoutdent
-	/sbin/ifenslave -d "${IFACE}" ${slaves}
+	if [ -d /sys/class/net ]; then
+		for s in ${slaves}; do
+			echo -"${s}" > /sys/class/net/"${IFACE}"/bonding/slaves
+		done
+	else
+		/sbin/ifenslave -d "${IFACE}" ${slaves}
+	fi
 
 	# reset all slaves
 	(