103 lines
2.4 KiB
Bash
103 lines
2.4 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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tuntap_depend()
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{
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before bridge interface macchanger
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program ip openvpn tunctl
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}
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_config_vars="$_config_vars iproute2 openvpn tunctl"
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_is_tuntap()
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{
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[ -n "$(RC_SVCNAME="net.${IFACE}"; export RC_SVCNAME ; service_get_value tuntap)" ]
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}
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tuntap_pre_start()
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{
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local tuntap=
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local rc=
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eval tuntap=\$tuntap_${IFVAR}
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[ -z "${tuntap}" ] && return 0
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if [ ! -e /dev/net/tun ]; then
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if ! modprobe tun; then
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eerror "TUN/TAP support is not present in this kernel"
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return 1
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fi
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vebegin "Waiting for /dev/net/tun"
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# /dev/net/tun can take its time to appear
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local timeout=10
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while [ ! -e /dev/net/tun -a ${timeout} -gt 0 ]; do
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sleep 1
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: $(( timeout -= 1 ))
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done
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if [ ! -e /dev/net/tun ]; then
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eerror "TUN/TAP support present but /dev/net/tun is not"
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return 1
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fi
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veend 0
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fi
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ebegin "Creating Tun/Tap interface ${IFACE}"
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# Set the base metric to 1000
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metric=1000
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local i_opts= o_opts= t_opts=
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local do_iproute2=false do_openvpn=false do_tunctl=false
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eval i_opts=\$iproute2_${IFVAR}
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eval o_opts=\$openvpn_${IFVAR}
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eval t_opts=\$tunctl_${IFVAR}
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if [ -n "${i_opts}" ] && type ip >/dev/null 2>&1; then
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do_iproute2=true
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elif [ -n "${o_opts}" ] && type openvpn >/dev/null 2>&1; then
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do_openvpn=true
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elif [ -n "${t_opts}" ] && type tunctl >/dev/null 2>&1; then
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do_tunctl=true
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elif type ip >/dev/null 2>&1; then
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do_iproute2=true
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elif type openvpn >/dev/null 2>&1; then
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do_openvpn=true
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elif type tunctl >/dev/null 2>&1; then
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do_tunctl=true
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fi
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if ${do_iproute2}; then
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ip tuntap add dev "${IFACE}" mode "${tuntap}" ${i_opts}
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rc=$?
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elif ${do_openvpn}; then
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openvpn --mktun --dev-type "${tuntap}" --dev "${IFACE}" \
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${o_opts} >/dev/null
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rc=$?
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elif ${do_tunctl}; then
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tunctl ${t_opts} -t "${IFACE}" >/dev/null
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rc=$?
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else
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eerror "Neither iproute2, openvpn nor tunctl has been found, please install"
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eerror "either \"iproute2\" \"openvpn\" or \"usermode-utilities\"."
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rc=1
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fi
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eend $rc && _up && service_set_value tuntap "${tuntap}"
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}
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tuntap_post_stop()
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{
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_is_tuntap || return 0
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ebegin "Destroying Tun/Tap interface ${IFACE}"
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if type ip > /dev/null 2>&1; then
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ip tuntap del dev ${IFACE} mode $(service_get_value tuntap)
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elif type tunctl >/dev/null 2>&1; then
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tunctl -d "${IFACE}" >/dev/null
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else
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openvpn --rmtun \
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--dev-type "$(service_get_value tuntap)" \
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--dev "${IFACE}" >/dev/null
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fi
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eend $?
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}
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