147 lines
3.8 KiB
Bash
147 lines
3.8 KiB
Bash
# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
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# Released under the 2-clause BSD license.
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vlan_depend()
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{
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program ip
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after interface
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before dhcp
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}
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_config_vars="$_config_vars vlans"
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_is_vlan()
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{
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[ ! -d /proc/net/vlan ] && return 1
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[ -e /proc/net/vlan/"${IFACE}" ] && return 0
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grep -Eq "^${IFACE}[[:space:]]+" /proc/net/vlan/config
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}
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_get_vlans()
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{
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[ -e /proc/net/vlan/config ] || return 1
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sed -n -e 's/^\W*\([^ ]*\) \(.* \) .*'"${IFACE}"'$/\1/p' /proc/net/vlan/config
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}
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_check_vlan()
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{
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if [ ! -d /proc/net/vlan ]; then
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modprobe 8021q
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if [ ! -d /proc/net/vlan ]; then
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eerror "VLAN (802.1q) support is not present in this kernel"
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return 1
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fi
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fi
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}
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vlan_pre_start()
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{
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local vconfig
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eval vconfig=\$vconfig_${IFVAR}
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if [ -n "${vconfig}" ]; then
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eerror "You must convert your vconfig_ VLAN entries to vlan${N} entries."
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return 1
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fi
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local vlans=
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eval vlans=\$vlans_${IFVAR}
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[ -z "$vlans" ] && return 0
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case " ${MODULES} " in
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*" ifconfig "*)
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eerror "sys-apps/iproute2 is required to configure VLANs"
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return 1 ;;
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esac
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}
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vlan_post_start()
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{
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local vlans=
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eval vlans=\$vlans_${IFVAR}
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[ -z "${vlans}" ] && return 0
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_check_vlan || return 1
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_exists || return 1
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local vlan= e= s= vname= vflags= vingress= vegress=
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for vlan in ${vlans}; do
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einfo "Adding VLAN ${vlan} to ${IFACE}"
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# We need to gather all interface configuration options
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# 1) naming. Default to the standard "${IFACE}.${vlan}" but it can be anything
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eval vname=\$${IFACE}_vlan${vlan}_name
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[ -z "${vname}" ] && eval vname=\$vlan${vlan}_name
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[ -z "${vname}" ] && vname="${IFACE}.${vlan}"
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# 2) flags
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eval vflags=\$${IFACE}_vlan${vlan}_flags
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[ -z "${vname}" ] && eval vflags=\$vlan${vlan}_flags
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# 3) ingress/egress map
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eval vingress=\$${IFACE}_vlan${vlan}_ingress
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[ -z "${vingress}" ] && eval vingress=\$vlan${vlan}_ingress
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[ -z "${vingress}" ] || vingress="ingress-qos-map ${vingress}"
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eval vegress=\$${IFACE}_vlan${vlan}_egress
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[ -z "${vegress}" ] && eval vegress=\$vlan${vlan}_egress
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[ -z "${vegress}" ] || vegress="egress-qos-map ${vegress}"
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# txqueue
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local txqueuelen=
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eval txqueuelen=\$txqueuelen_${IFACE}_vlan${vlan}
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[ -z "${txqueuelen}" ] && eval txqueuelen=\$txqueuelen_vlan${vlan}
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# mac
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local mac=
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eval mac=\$mac_${IFACE}_vlan${vlan}
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[ -z "${mac}" ] && eval mac=\$mac_vlan${vlan}
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# broadcast
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local broadcast=
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eval broadcast=\$broadcast_${IFACE}_vlan${vlan}
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[ -z "${broadcast}" ] && eval broadcast=\$broadcast_vlan${vlan}
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# mtu
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local mtu=
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eval mtu=\$mtu_${IFACE}_vlan${vlan}
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[ -z "${mtu}" ] && eval mtu=\$mtu_vlan${vlan}
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# combine it all
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local opts="${txqueuelen:+txqueuelen} ${txqueuelen} ${mac:+address} ${mac} ${broadcast:+broadcast} ${broadcast} ${mtu:+mtu} ${mtu}"
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veinfo "ip link add link \"${IFACE}\" name \"${vname}\" ${opts} type vlan id \"${vlan}\" ${vflags} ${vingress} ${vegress}"
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e="$(ip link add link "${IFACE}" name "${vname}" ${opts} type vlan id "${vlan}" ${vflags} ${vingress} ${vegress} 2>&1 1>/dev/null)"
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if [ -n "${e}" ]; then
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eend 1 "${e}"
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continue
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fi
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# We may not want to start the vlan ourselves
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eval s=\$vlan_start_${IFVAR}
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yesno ${s:-yes} || continue
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# We need to work out the interface name of our new vlan id
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local ifname="$(sed -n -e \
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's/^\([^[:space:]]*\) *| '"${vlan}"' *| .*'"${IFACE}"'$/\1/p' \
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/proc/net/vlan/config )"
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mark_service_started "net.${ifname}"
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(
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RC_SVCNAME="net.${ifname}" ; export RC_SVCNAME
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start
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) || mark_service_stopped "net.${ifname}"
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done
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return 0
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}
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vlan_pre_stop()
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{
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local vlan=
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_exists || return 0
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for vlan in $(_get_vlans); do
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einfo "Removing VLAN ${vlan##*.} from ${IFACE}"
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(
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RC_SVCNAME="net.${vlan}" ; export RC_SVCNAME
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stop
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) && {
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mark_service_stopped "net.${vlan}"
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ip link delete "${vlan}" type vlan >/dev/null
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}
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done
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return 0
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}
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