1 files changed, 118 insertions, 0 deletions
diff --git a/net/vlan.sh b/net/vlan.sh
new file mode 100644
index 0000000..7d77aae
--- /dev/null
+++ b/net/vlan.sh
@@ -0,0 +1,118 @@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+vlan_depend()
+{
+	program /sbin/vconfig
+	after interface
+	before dhcp
+}
+
+_config_vars="$_config_vars vlans"
+
+_is_vlan()
+{
+	[ ! -d /proc/net/vlan ] && return 1
+	[ -e /proc/net/vlan/"${IFACE}" ] && return 0
+	grep -Eq "^${IFACE}[[:space:]]+" /proc/net/vlan/config
+}
+
+_get_vlans()
+{
+	[ -e /proc/net/vlan/config ] || return 1
+	sed -n -e 's/^\(.*[0-9]\) \(.* \) .*'"${IFACE}"'$/\1/p' /proc/net/vlan/config
+}
+
+_check_vlan()
+{
+	if [ ! -d /proc/net/vlan ]; then
+		modprobe 8021q
+		if [ ! -d /proc/net/vlan ]; then
+			eerror "VLAN (802.1q) support is not present in this kernel"
+			return 1
+		fi
+	fi
+}
+
+vlan_pre_start()
+{
+	local vc="$(_get_array "vconfig_${IFVAR}")"
+	[ -z "${vc}" ] && return 0
+
+	_check_vlan || return 1
+	_exists || return 1
+
+	local v= x= e=
+	local IFS="$__IFS"
+	for v in ${vc}; do
+		unset IFS
+		case "${v}" in
+			set_name_type" "*) x=${v};;
+			*)
+				set -- ${v}
+				x="$1 ${IFACE}"
+				shift
+				x="${x} $@"
+				;;
+		esac
+
+		e="$(vconfig ${x} 2>&1 1>/dev/null)"
+		[ -z "${e}" ] && continue
+		eerror "${e}"
+		return 1
+	done
+}
+
+vlan_post_start()
+{
+	local vlans=
+	eval vlans=\$vlans_${IFACE}
+	[ -z "${vlans}" ] && return 0
+	
+	_check_vlan || return 1
+	_exists || return 1
+
+	local vlan= e= s=
+	for vlan in ${vlans}; do
+		einfo "Adding VLAN ${vlan} to ${IFACE}"
+		e="$(vconfig add "${IFACE}" "${vlan}" 2>&1 1>/dev/null)"
+		if [ -n "${e}" ]; then
+			eend 1 "${e}"
+			continue
+		fi
+
+		# We may not want to start the vlan ourselves
+		eval s=\$vlan_start_${IFVAR}
+		yesno ${s:-yes} || continue
+
+		# We need to work out the interface name of our new vlan id
+		local ifname="$( \
+			sed -n -e 's/^\([^[:space:]]*\) *| '"${vlan}"' *| .*'"${iface}"'$/\1/p' \
+			/proc/net/vlan/config )"
+		mark_service_started "net.${ifname}"
+		(
+			export RC_SVCNAME="net.${ifname}"
+			start	
+		) || mark_service_stopped "net.${ifname}"
+	done
+	
+	return 0
+}
+
+vlan_post_stop()
+{
+	local vlan=
+
+	for vlan in $(_get_vlans); do
+		einfo "Removing VLAN ${vlan##*.} from ${IFACE}"
+		(
+			export RC_SVCNAME="net.${vlan}"
+			stop
+		) && {
+			mark_service_stopped "net.${vlan}"
+			vconfig rem "${vlan}" >/dev/null
+		}
+	done
+
+	return 0
+}