261 lines
7.0 KiB
Bash
261 lines
7.0 KiB
Bash
# Copyright 2005-2007 Gentoo Foundation
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# Copyright 2007 Roy Marples
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# All rights reserved
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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pppd_depend() {
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program /usr/sbin/pppd
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after interface
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before dhcp
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provide ppp
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}
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is_ppp() {
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[ -e /var/run/ppp-"${IFACE}".pid ]
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}
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requote() {
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printf "'%s' " "$@"
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}
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pppd_pre_start() {
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# Interface has to be called ppp
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[ "${IFACE%%[0-9]*}" = "ppp" ] || return 0
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# Set our base metric
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metric=4000
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if yesno ${IN_BACKGROUND}; then
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local config=
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eval config=\$config_${IFVAR}
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# If no config for ppp then don't default to DHCP
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if [ -z "${config}" ]; then
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eval config_${IFVAR}=null
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fi
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return 0
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fi
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local link= i= unit="${IFACE#ppp}" opts=
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# PPP requires a link to communicate over - normally a serial port
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# PPPoE communicates over Ethernet
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# PPPoA communicates over ATM
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# In all cases, the link needs to be available before we start PPP
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eval link=\$link_${IFVAR}
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[ -n "${link}" ] || return 0
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case "${link}" in
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/*)
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if [ ! -e "${link}" ]; then
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eerror "${link} does not exist"
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eerror "Please verify hardware or kernel module (driver)"
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return 1
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fi
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;;
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esac
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if [ -z "${unit}" ]; then
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eerror "PPP requires a unit - use net.ppp[0-9] instead of net.ppp"
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return 1
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fi
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# We need to flatten the useless array
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set -- $(_get_array "pppd_${IFVAR}")
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opts="$@"
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local mtu= hasmtu=false hasmru=false hasmaxfail=false haspersist=false
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local hasupdetach=false hasdefaultmetric=false
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for i in ${opts}; do
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case "${i}" in
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unit|nodetach|linkname)
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eerror "The option \"${i}\" is not allowed in pppd_${IFVAR}"
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return 1
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;;
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defaultmetric) hasdefaultmetric=true;;
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mtu) hasmtu=true;;
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mru) hasmru=true;;
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maxfail) hasmaxfail=true;;
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persist) haspersist=true;;
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updetach) hasupdetach=true;;
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esac
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done
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# Might be set in conf.d/net
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local username= password= passwordset=
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eval username=\$username_${IFVAR}
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eval password=\$password_${IFVAR}
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eval passwordset=\$\{password_${IFVAR}-x\}
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if [ -n "${username}" ] \
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&& [ -n "${password}" -o -z "${passwordset}" ]; then
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opts="${opts} plugin passwordfd.so passwordfd 0"
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fi
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if ! ${hasdefaultmetric}; then
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local m=
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eval m=\$metric_${IFVAR}
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[ -z "${m}" ] && m=$((${metric} + $(_ifindex)))
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opts="${opts} defaultmetric ${m}"
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fi
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if [ -n "${mtu}" ]; then
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${hasmtu} || opts="${opts} mtu ${mtu}"
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${hasmru} || opts="${opts} mru ${mtu}"
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fi
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${hasmaxfail} || opts="${opts} maxfail 0"
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${haspersist} || opts="${opts} persist"
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# Set linkname because we need /var/run/ppp-${linkname}.pid
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# This pidfile has the advantage of being there,
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# even if ${IFACE} interface was never started
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opts="linkname ${IFACE} ${opts}"
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# Setup auth info
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if [ -n "${username}" ]; then
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opts="user '${username}' remotename ${IFACE} ${opts}"
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fi
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# Load a custom interface configuration file if it exists
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[ -f "/etc/ppp/options.${IFACE}" ] \
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&& opts="${opts} file '/etc/ppp/options.${IFACE}'"
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# Set unit
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opts="unit ${unit} ${opts}"
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# Setup connect script
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local chatprog="/usr/sbin/chat -e -E -v" phone=
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eval phone=\$phone_number_${IFVAR}
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set -- ${phone}
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[ -n "$1" ] && chatprog="${chatprog} -T '$1'"
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[ -n "$2" ] && chatprog="${chatprog} -U '$2'"
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# We need to flatten the useless array
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set -- $(_get_array "chat_${IFVAR}")
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if [ $# != 0 ]; then
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opts="${opts} connect '$(echo ${chatprog} $@ | sed -e "s:':'\\\\'':g")'"
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fi
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# Add plugins
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local haspppoa=false haspppoe=false plugins="$(_get_array "plugins_${IFVAR}")"
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local IFS="$__IFS"
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for i in ${plugins}; do
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unset IFS
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set -- ${i}
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case "$1" in
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passwordfd) continue;;
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pppoa) shift; set -- "pppoatm" "$@";;
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pppoe) shift; set -- "rp-pppoe" "$@";;
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capi) shift; set -- "capiplugin" "$@";;
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esac
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case "$1" in
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rp-pppoe) haspppoe=true;;
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pppoatm) haspppoa=true;;
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esac
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if [ "$1" = "rp-pppoe" ] || [ "$1" = "pppoatm" -a "${link}" != "/dev/null" ]; then
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opts="${opts} connect true"
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set -- "$@" "${link}"
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fi
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opts="${opts} plugin $1.so"
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shift
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opts="${opts} $@"
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done
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unset IFS
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#Specialized stuff. Insert here actions particular to connection type (pppoe,pppoa,capi)
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local insert_link_in_opts=1
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if ${haspppoe}; then
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if [ ! -e /proc/net/pppoe ]; then
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# Load the PPPoE kernel module
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if ! modprobe pppoe; then
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eerror "kernel does not support PPPoE"
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return 1
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fi
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fi
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# Ensure that the link exists and is up
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( IFACE="${link}"; _exists true && _up ) || return 1
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insert_link_in_opts=0
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fi
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if ${haspppoa}; then
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if [ ! -d /proc/net/atm ]; then
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# Load the PPPoA kernel module
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if ! modprobe pppoatm; then
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eerror "kernel does not support PPPoATM"
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return 1
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fi
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fi
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if [ "${link}" != "/dev/null" ]; then
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insert_link_in_opts=0
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else
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ewarn "WARNING: An [itf.]vpi.vci ATM address was expected in link_${IFVAR}"
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fi
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fi
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[ "${insert_link_in_opts}" = "0" ] || opts="${link} ${opts}"
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ebegin "Starting pppd in ${IFACE}"
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mark_service_inactive
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if [ -n "${username}" ] \
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&& [ -n "${password}" -o -z "${passwordset}" ]; then
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printf "%s" "${password}" | \
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eval start-stop-daemon --start --exec /usr/sbin/pppd \
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--pidfile "/var/run/ppp-${IFACE}.pid" -- "${opts}" >/dev/null
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else
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eval start-stop-daemon --start --exec /usr/sbin/pppd \
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--pidfile "/var/run/ppp-${IFACE}.pid" -- "${opts}" >/dev/null
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fi
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if ! eend $? "Failed to start PPP"; then
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mark_service_stopped
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return 1
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fi
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if ${hasupdetach}; then
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_show_address
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else
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einfo "Backgrounding ..."
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fi
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# pppd will re-call us when we bring the interface up
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exit 0
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}
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# Dummy function for users that still have config_ppp0="ppp"
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pppd_start() {
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return 0
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}
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pppd_stop() {
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yesno ${IN_BACKGROUND} && return 0
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local pidfile="/var/run/ppp-${IFACE}.pid"
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[ ! -s "${pidfile}" ] && return 0
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# Give pppd at least 30 seconds do die, #147490
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einfo "Stopping pppd on ${IFACE}"
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start-stop-daemon --stop --quiet --exec /usr/sbin/pppd \
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--pidfile "${pidfile}" --retry 30
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eend $?
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}
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# vim: set ts=4 :
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