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# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
_ip()
{
if [ -x /bin/ip ]; then
echo /bin/ip
else
echo /sbin/ip
fi
}
vlan_depend()
{
program $(_ip)
after interface
before dhcp
}
_config_vars="$_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/^\W*\([^ ]*\) \(.* \) .*'"${IFACE}"'$/\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 vconfig
eval vconfig=\$vconfig_${IFVAR}
if [ -n "${vconfig}" ]; then
eerror "You must convert your vconfig_ VLAN entries to vlan${N} entries."
return 1
fi
}
vlan_post_start()
{
local vlans=
eval vlans=\$vlans_${IFVAR}
[ -z "${vlans}" ] && return 0
_check_vlan || return 1
_exists || return 1
local vlan= e= s= vname= vflags= vingress= vegress=
for vlan in ${vlans}; do
einfo "Adding VLAN ${vlan} to ${IFACE}"
# We need to gather all interface configuration options
# 1) naming. Default to the standard "${IFACE}.${vlan}" but it can be anything
eval vname=\$vlan${vlan}_name
[ -z "${vname}" ] && vname="${IFACE}.${vlan}"
# 2) flags
eval vflags=\$vlan${vlan}_flags
# 3) ingress/egress map
eval vingress=\$vlan${vlan}_ingress
[ -z "${vingress}" ] || vingress="ingress-qos-map ${vingress}"
eval vegress=\$vlan${vlan}_egress
[ -z "${vegress}" ] || vegress="egress-qos-map ${vegress}"
local txqueuelen=
eval txqueuelen=\$txqueuelen_vlan${vlan}
local mac=
eval mac=\$mac_vlan${vlan}
local broadcast=
eval broadcast=\$broadcast_vlan${vlan}
local mtu=
eval mtu=\$mtu_vlan${vlan}
local opts="${txqueuelen:+txqueuelen} ${txqueuelen} ${mac:+address} ${mac} ${broadcast:+broadcast} ${broadcast} ${mtu+:mtu} ${mtu}"
e="$(ip link add link "${IFACE}" name "${vname}" ${opts} type vlan id "${vlan}" ${vflags} ${vingress} ${vegress} 2>&1 1>/dev/null)"
if [ -n "${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_pre_stop()
{
local vlan=
_exists || return 1
for vlan in $(_get_vlans); do
einfo "Removing VLAN ${vlan##*.} from ${IFACE}"
(
export RC_SVCNAME="net.${vlan}"
stop
) && {
mark_service_stopped "net.${vlan}"
ip link delete "${vlan}" type vlan >/dev/null
}
done
return 0
}
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