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#!/sbin/runscript
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# Copyright (c) 2004-2005 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# Contributed by Roy Marples (uberlord@gentoo.org)
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# Many thanks to Aron Griffis (agriffis@gentoo.org)
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# for help, ideas and patches
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#NB: Config is in /etc/conf.d/net
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# For pcmcia users. note that pcmcia must be added to the same
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# runlevel as the net.* script that needs it.
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depend() {
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need localmount
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use coldplug pcmcia usb isdn wlan
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# Load any custom depend functions for the given interface
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# For example, br0 may need eth0 and eth1
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local iface="${myservice##*.}"
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[[ $( type -t depend_${iface} ) == "function" ]] && depend_${iface}
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return 0
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}
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# Define where our modules are
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MODULES_DIR="/lib/rcscripts/net.modules.d"
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# Some defaults
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background="${background:-no}"
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# Load some functions shared between ourselves and our dhcp helpers
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source "${MODULES_DIR}/helpers.d/functions"
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# Make some wrappers to fudge after/before/need/use depend flags.
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# These are callbacks so MODULE will be set.
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after() {
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local x="$*"
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[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
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eval "${MODULE}_after() { echo \"$x\"; }"
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}
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before() {
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local x="$*"
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[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
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eval "${MODULE}_before() { echo \"$x\"; }"
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}
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need() {
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local x="$*"
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[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
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eval "${MODULE}_need() { echo \"$x\"; }"
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}
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installed() {
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local x="$*"
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[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
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# We deliberately misspell this as _installed will probably be used
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# at some point
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eval "${MODULE}_instlled() { echo \"$x\"; }"
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}
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sort() {
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LC_ALL=C /bin/sort "$@"
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}
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# void go_background(void)
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#
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# Setup for backgrounding network script
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go_background() {
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einfo "Backgrounding ..."
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mark_service_inactive "net.${iface}"
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exit 0
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}
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# bool module_load_minimum(char *module)
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#
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# Does the minimum checking on a module - even when forcing
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module_load_minimum() {
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local f="$1" MODULE="${1##*/}"
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if [[ ! -f ${f} ]]; then
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eerror "${f} does not exist"
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return 1
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fi
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if ! source "${f}" ; then
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eerror "${MODULE} failed a sanity check"
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return 1
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fi
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for f in check_installed provides check_depends depend; do
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[[ $( type -t "${MODULE}_${f}" ) == "function" ]] && continue
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eerror "${MODULE} does not support the required function ${f}"
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return 1
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done
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return 0
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}
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# bool modules_load_auto()
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#
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# Load and check each module for sanity
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# If the module is not installed, the functions are to be removed
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modules_load_auto() {
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local i j
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# Populate the MODULES array
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# Basically we treat evey file in ${MODULES_DIR} as a module
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MODULES=( $( cd "${MODULES_DIR}" ; ls ) )
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j="${#MODULES[@]}"
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for (( i=0; i<j; i++ )); do
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MODULES[i]="${MODULES_DIR}/${MODULES[i]}"
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[[ ! -f ${MODULES[i]} ]] && unset MODULES[i]
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done
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MODULES=( "${MODULES[@]}" )
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# Each of these sources into the global namespace, so it's
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# important that module functions and variables are prefixed with
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# the module name, for example iproute2_
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j="${#MODULES[@]}"
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loaded_interface=false
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for (( i=0; i<j; i++ )); do
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if [[ ${MODULES[i]##*/} == "interface" ]]; then
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eerror "interface is a reserved name - cannot load a module called interface"
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return 1
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fi
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(
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u=0;
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module_load_minimum "${MODULES[i]}" || u=1;
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[[ ${u} == 0 ]] && ${MODULES[i]##*/}_check_installed false || u=1;
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exit "${u}";
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)
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if [[ $? == 0 ]]; then
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source "${MODULES[i]}"
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MODULES[i]="${MODULES[i]##*/}"
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else
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unset MODULES[i]
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fi
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done
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MODULES=( "${MODULES[@]}" )
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return 0
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}
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# bool modules_check_installed(void)
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#
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# Ensure that all modules have the required modules loaded
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# This enables us to remove modules from the MODULES array
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# Whilst other modules can still explicitly call them
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# One example of this is essidnet which configures network
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# settings for the specific ESSID connected to as the user
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# may be using a daemon to configure wireless instead of our
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# iwconfig module
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modules_check_installed() {
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local i j missingdeps nmods="${#MODULES[@]}"
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for (( i=0; i<nmods; i++ )); do
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[[ $( type -t "${MODULES[i]}_instlled" ) != "function" ]] && continue
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for j in $( ${MODULES[i]}_instlled ); do
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missingdeps=true
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if [[ $( type -t "${j}_check_installed" ) == "function" ]]; then
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${j}_check_installed && missingdeps=false
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fi
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${missingdeps} && unset MODULES[i] && unset PROVIDES[i] && break
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done
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done
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MODULES=( "${MODULES[@]}" )
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PROVIDES=( "${PROVIDES[@]}" )
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}
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# bool modules_check_user(void)
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modules_check_user() {
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local -a umods
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local i j k l npref nmods="${#MODULES[@]}"
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# Has the interface got any specific modules?
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eval umods=( \"\$\{modules_${iface}\[@\]\}\" )
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# Global setting follows interface-specific setting
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umods=( "${umods[@]}" "${modules[@]}" )
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# Add our preferred modules
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npref=3
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umods=( "${umods[@]}" "iproute2" "dhcpcd" "iwconfig" "netplugd" )
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# First we strip any modules that conflict from user settings
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# So if the user specifies pump then we don't use dhcpcd
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for (( i=0; i<${#umods[@]}; i++ )); do
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# Some users will inevitably put "dhcp" in their modules
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# list. To keep users from screwing up their system this
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# way, ignore this setting so that the default dhcp
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# module will be used.
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[[ ${umods[i]} == "dhcp" ]] && continue
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# We remove any modules we explicitly don't want
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if [[ ${umods[i]} == !* ]]; then
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for (( j=0; j<nmods; j++ )); do
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[[ -z ${MODULES[j]} ]] && continue
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if [[ ${umods[i]:1} == "${MODULES[j]}" \
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|| ${umods[i]:1} == "${PROVIDES[j]}" ]]; then
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# We may need to setup a class wrapper for it even though
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# we don't use it directly
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# However, we put it into an array and wrap later as
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# another module may provide the same thing
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${MODULES[j]}_check_installed \
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&& WRAP_MODULES=(
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"${WRAP_MODULES[@]}"
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"${MODULES[j]} ${PROVIDES[j]}"
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)
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unset MODULES[j]
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unset PROVIDES[j]
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break
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fi
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done
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continue
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fi
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if [[ $( type -t "${umods[i]}_provides" ) != "function" ]]; then
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# If the module is one of our preferred modules, then
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# ignore this error; whatever is available will be
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# used instead.
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(( i < ${#umods[@]} - npref )) || continue
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# The function may not exist because the modules software is
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# not installed. Load the module and report its error
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if [[ -e "${MODULES_DIR}/${umods[i]}" ]]; then
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source "${MODULES_DIR}/${umods[i]}"
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${umods[i]}_check_installed true
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else
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eerror "The module \"${umods[i]}\" does not exist"
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fi
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return 1
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fi
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mod=$( ${umods[i]}_provides )
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for (( j=0; j<nmods; j++ )); do
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[[ -z ${MODULES[j]} ]] && continue
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if [[ ${PROVIDES[j]} == "${mod}" && ${umods[i]} != "${MODULES[j]}" ]]; then
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# We don't have a match - now ensure that we still provide an
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# alternative. This is to handle our preferred modules.
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for (( l=0; l<nmods; l++ )); do
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[[ ${l} == "${j}" || -z ${MODULES[l]} ]] && continue
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if [[ ${PROVIDES[l]} == "${mod}" ]]; then
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unset MODULES[j]
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unset PROVIDES[j]
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break
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fi
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done
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fi
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done
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done
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# Then we strip conflicting modules.
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# We only need to do this for 3rd party modules that conflict with
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# our own modules and the preferred list AND the user modules
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# list doesn't specify a preference.
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for (( i=0; i<nmods-1; i++ )); do
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[[ -z ${MODULES[i]} ]] && continue
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for (( j=i+1; j<nmods; j++)); do
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[[ -z ${MODULES[j]} ]] && continue
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[[ ${PROVIDES[i]} == "${PROVIDES[j]}" ]] \
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&& unset MODULES[j] && unset PROVIDES[j]
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done
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done
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MODULES=( "${MODULES[@]}" )
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PROVIDES=( "${PROVIDES[@]}" )
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return 0
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}
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# void modules_sort(void)
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modules_sort() {
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local -a modnums sort_history modafter modbefore
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local i j k p changed_something nmods="${#MODULES[@]}"
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# Sort our modules
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# We do this by assigning numbers to each module
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# We also assign modbefore and modafter so we don't
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# shell out as much because it's expensive on CPU.
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modnums=()
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for (( i=0; i<nmods; i++ )); do
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modnums[i]="${i}"
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[[ $( type -t "${MODULES[i]}_after" ) == "function" ]] \
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&& modafter[i]=$( ${MODULES[i]}_after )
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[[ $( type -t "${MODULES[i]}_before" ) == "function" ]] \
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&& modbefore[i]=$( ${MODULES[i]}_before )
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done
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# Then we swap numbers based on and after/before flags
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# until we don't swap anymore. The sort_history array prevents
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# the possibility of an infinite loop
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sort_history[0]="${modnums[*]}"
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for (( k=1; 1; k++ )); do
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changed_something=false
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for (( i=0; i<nmods; i++ )); do
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for p in ${modafter[i]}; do
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for (( j=0; j<nmods; j++ )); do
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[[ ${p} != "${MODULES[j]}" && ${p} != "${PROVIDES[j]}" ]] \
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&& continue
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if [[ ${modnums[i]} -lt "${modnums[j]}" ]]; then
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tmp="${modnums[i]}"
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modnums[i]="${modnums[j]}"
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modnums[j]="${tmp}"
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changed_something=true
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fi
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done
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done
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for p in ${modbefore[i]}; do
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for (( j=0; j<nmods; j++ )); do
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[[ ${p} != "${MODULES[j]}" && ${p} != "${PROVIDES[j]}" ]] \
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&& continue
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if [[ ${modnums[i]} -gt "${modnums[j]}" ]]; then
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tmp="${modnums[i]}"
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modnums[i]="${modnums[j]}"
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modnums[j]="${tmp}"
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changed_something=true
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fi
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done
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done
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done
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${changed_something} || break
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# Make sure we aren't repeating a previous state
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# First time through, k=1, k/2=0
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sort_history[k]="${modnums[*]}"
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if [[ ${sort_history[k]} == "${sort_history[k/2]}" ]]; then
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eerror "Detected an infinite loop sorting modules; blundering ahead"
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break
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fi
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done
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# Finally we sort our modules in number order
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um=""
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for (( i=0; i<nmods; i++ )); do
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um="${um}${modnums[i]} ${MODULES[i]} ${PROVIDES[i]}\n"
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done
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p=( $( echo -e "${um}" | sort -n | cut -d' ' -f2,3 ) )
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MODULES=()
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PROVIDES=()
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j=0
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for (( i=0; i<${#p[@]}; i+=2 )); do
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MODULES[j]="${p[i]}"
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| 347 |
PROVIDES[j]="${p[i+1]}"
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| 348 |
(( j++ ))
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done
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| 350 |
}
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# bool modules_check_depends(bool showprovides)
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modules_check_depends() {
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| 354 |
local showprovides="${1:-false}" nmods="${#MODULES[@]}" i j needmod
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| 355 |
local missingdeps p interface=false
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| 356 |
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| 357 |
for (( i=0; i<nmods; i++ )); do
|
| 358 |
if [[ $( type -t "${MODULES[i]}_need" ) == "function" ]]; then
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| 359 |
for needmod in $( ${MODULES[i]}_need ); do
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| 360 |
missingdeps=true
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| 361 |
for (( j=0; j<nmods; j++ )); do
|
| 362 |
if [[ ${needmod} == "${MODULES[j]}" \
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| 363 |
|| ${needmod} == "${PROVIDES[j]}" ]]; then
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| 364 |
missingdeps=false
|
| 365 |
break
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| 366 |
fi
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| 367 |
done
|
| 368 |
if ${missingdeps} ; then
|
| 369 |
eerror "${MODULES[i]} needs ${needmod} (dependency failure)"
|
| 370 |
return 1
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| 371 |
fi
|
| 372 |
done
|
| 373 |
fi
|
| 374 |
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| 375 |
${MODULES[i]}_check_depends || return 1
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| 376 |
[[ ${PROVIDES[i]} == "interface" ]] && interface=true
|
| 377 |
|
| 378 |
if ${showprovides} ; then
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| 379 |
[[ ${PROVIDES[i]} != "${MODULES[i]}" ]] \
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| 380 |
&& veinfo "${MODULES[i]} provides ${PROVIDES[i]}"
|
| 381 |
fi
|
| 382 |
done
|
| 383 |
|
| 384 |
if ! ${interface} ; then
|
| 385 |
eerror "no interface module has been loaded"
|
| 386 |
return 1
|
| 387 |
fi
|
| 388 |
|
| 389 |
return 0
|
| 390 |
}
|
| 391 |
|
| 392 |
# bool modules_load(char *iface, bool starting)
|
| 393 |
#
|
| 394 |
# Loads the defined handler and modules for the interface
|
| 395 |
# Returns 0 on success, otherwise 1
|
| 396 |
modules_load() {
|
| 397 |
local iface="$1" starting="${2:-true}" MODULE p=false i j k
|
| 398 |
local -a x
|
| 399 |
local RC_INDENTATION="${RC_INDENTATION}"
|
| 400 |
local -a PROVIDES WRAP_MODULES
|
| 401 |
|
| 402 |
if [[ ${iface} != "lo" ]]; then
|
| 403 |
eval x=( \"\$\{modules_force_${iface}\[@\]\}\" )
|
| 404 |
[[ -n ${x} ]] && modules_force=( "${x[@]}" )
|
| 405 |
if [[ -n ${modules_force} ]]; then
|
| 406 |
ewarn "WARNING: You are forcing modules!"
|
| 407 |
ewarn "Do not complain or file bugs if things start breaking"
|
| 408 |
report=true
|
| 409 |
fi
|
| 410 |
fi
|
| 411 |
|
| 412 |
veinfo "Loading networking modules for ${iface}"
|
| 413 |
eindent
|
| 414 |
|
| 415 |
if [[ -z ${modules_force} ]]; then
|
| 416 |
modules_load_auto || return 1
|
| 417 |
else
|
| 418 |
j="${#modules_force[@]}"
|
| 419 |
for (( i=0; i<j; i++ )); do
|
| 420 |
module_load_minimum "${MODULES_DIR}/${modules_force[i]}" || return 1
|
| 421 |
${modules_force[i]}_check_installed || unset modules_force[i]
|
| 422 |
done
|
| 423 |
modules_force=( "${modules_force[@]}" )
|
| 424 |
|
| 425 |
# Strip any duplicate modules providing the same thing
|
| 426 |
j="${#modules_force[@]}"
|
| 427 |
for (( i=0; i<j-1; i++ )); do
|
| 428 |
[[ -z ${modules_force[i]} ]] && continue
|
| 429 |
for (( k=i+1; k<j; k++ )); do
|
| 430 |
[[ -z ${modules_force[k]} ]] && continue
|
| 431 |
[[ $( ${modules_force[i]}_provides ) \
|
| 432 |
== $( ${modules_force[k]}_provides ) ]] \
|
| 433 |
&& unset modules_force[k]
|
| 434 |
done
|
| 435 |
done
|
| 436 |
|
| 437 |
MODULES=( "${modules_force[@]}" )
|
| 438 |
fi
|
| 439 |
|
| 440 |
# We now buffer the _provides functions for a big speed boost
|
| 441 |
j="${#MODULES[@]}"
|
| 442 |
for (( i=0; i<j; i++ )); do
|
| 443 |
PROVIDES[i]=$( ${MODULES[i]}_provides )
|
| 444 |
done
|
| 445 |
|
| 446 |
if [[ -z ${modules_force[@]} ]]; then
|
| 447 |
if ${starting}; then
|
| 448 |
modules_check_user || return 1
|
| 449 |
fi
|
| 450 |
fi
|
| 451 |
|
| 452 |
# Setup class wrappers: interface_up -> iproute2_up, for example
|
| 453 |
j="${#MODULES[@]}"
|
| 454 |
for (( i=0; i<j; i++ )); do
|
| 455 |
function_wrap "${MODULES[i]}" "${PROVIDES[i]}"
|
| 456 |
|
| 457 |
# Now load our dependencies - we need to use the MODULE variable
|
| 458 |
# here as the after/before/need functions use it
|
| 459 |
if [[ -z ${modules_force[@]} ]]; then
|
| 460 |
MODULE="${MODULES[i]}"
|
| 461 |
${MODULE}_depend
|
| 462 |
fi
|
| 463 |
done
|
| 464 |
|
| 465 |
# Some modules may be installed, but not selected by user preference
|
| 466 |
# so we wrap these if needed
|
| 467 |
j="${#WRAP_MODULES[@]}"
|
| 468 |
for (( i=0; i<j; i++ )); do
|
| 469 |
function_wrap "${WRAP_MODULES[i]}"
|
| 470 |
done
|
| 471 |
|
| 472 |
if [[ -z ${modules_force[@]} ]]; then
|
| 473 |
modules_check_installed || return 1
|
| 474 |
modules_sort || return 1
|
| 475 |
fi
|
| 476 |
|
| 477 |
veinfo "modules: ${MODULES[@]}"
|
| 478 |
eindent
|
| 479 |
|
| 480 |
${starting} && p=true
|
| 481 |
modules_check_depends "${p}" || return 1
|
| 482 |
return 0
|
| 483 |
}
|
| 484 |
|
| 485 |
# bool iface_start(char *interface)
|
| 486 |
#
|
| 487 |
# iface_start is called from start. It's expected to start the base
|
| 488 |
# interface (for example "eth0"), aliases (for example "eth0:1") and to start
|
| 489 |
# VLAN interfaces (for example eth0.0, eth0.1). VLAN setup is accomplished by
|
| 490 |
# calling itself recursively.
|
| 491 |
iface_start() {
|
| 492 |
local iface="$1" mod config_counter="-1" x config_worked=false
|
| 493 |
local RC_INDENTATION="${RC_INDENTATION}"
|
| 494 |
local -a config fallback fallback_route conf a
|
| 495 |
local ifvar=$( bash_variable "$1" ) i j
|
| 496 |
|
| 497 |
# Try and work out a metric for the interface if we're on auto
|
| 498 |
eval x=\"\$\{metric_${ifvar}\}\"
|
| 499 |
if [[ -z ${x} ]]; then
|
| 500 |
if [[ ${RC_AUTO_INTERFACE} == "yes" ]]; then
|
| 501 |
eval "metric_${ifvar}=\""$( calculate_metric ${iface} )"\""
|
| 502 |
else
|
| 503 |
eval "metric_${ifvar}=0"
|
| 504 |
fi
|
| 505 |
fi
|
| 506 |
|
| 507 |
# pre Start any modules with
|
| 508 |
for mod in ${MODULES[@]}; do
|
| 509 |
if [[ $( type -t "${mod}_pre_start" ) == "function" ]]; then
|
| 510 |
${mod}_pre_start "${iface}" || { eend 1; return 1; }
|
| 511 |
fi
|
| 512 |
done
|
| 513 |
|
| 514 |
# We now expand the configuration parameters and pray that the
|
| 515 |
# fallbacks expand to the same number as config or there will be
|
| 516 |
# trouble!
|
| 517 |
eval a=( \"\$\{config_${ifvar}\[@\]\}\" )
|
| 518 |
for (( i=0; i<${#a[@]}; i++ )); do
|
| 519 |
local -a b=( $( expand_parameters "${a[i]}" ) )
|
| 520 |
config=( "${config[@]}" "${b[@]}" )
|
| 521 |
done
|
| 522 |
|
| 523 |
eval a=( \"\$\{fallback_${ifvar}\[@\]\}\" )
|
| 524 |
for (( i=0; i<${#a[@]}; i++ )); do
|
| 525 |
local -a b=( $( expand_parameters "${a[i]}" ) )
|
| 526 |
fallback=( "${fallback[@]}" "${b[@]}" )
|
| 527 |
done
|
| 528 |
|
| 529 |
# We don't expand routes
|
| 530 |
eval fallback_route=( \"\$\{fallback_route_${ifvar}\[@\]\}\" )
|
| 531 |
|
| 532 |
# We must support old configs
|
| 533 |
if [[ -z ${config} ]]; then
|
| 534 |
interface_get_old_config "${iface}" || return 1
|
| 535 |
if [[ -n ${config} ]]; then
|
| 536 |
ewarn "You are using a depreciated configuration syntax for ${iface}"
|
| 537 |
ewarn "You are advised to read /etc/conf.d/net.example and upgrade it accordingly"
|
| 538 |
fi
|
| 539 |
fi
|
| 540 |
|
| 541 |
# Handle "noop" correctly
|
| 542 |
if [[ ${config[0]} == "noop" ]]; then
|
| 543 |
if interface_is_up "${iface}" true ; then
|
| 544 |
einfo "Keeping current configuration for ${iface}"
|
| 545 |
eend 0
|
| 546 |
return 0
|
| 547 |
fi
|
| 548 |
|
| 549 |
# Remove noop from the config var
|
| 550 |
config=( "${config[@]:1}" )
|
| 551 |
fi
|
| 552 |
|
| 553 |
# Provide a default of DHCP if no configuration is set and we're auto
|
| 554 |
# Otherwise a default of NULL
|
| 555 |
if [[ -z ${config} ]]; then
|
| 556 |
# if [[ ${RC_AUTO_INTERFACE} == "yes" ]]; then
|
| 557 |
if [[ $( type -t "dhcp_start" ) == "function" ]]; then
|
| 558 |
config=( "dhcp" )
|
| 559 |
ewarn "Configuration not set for ${iface} - assuming dhcp"
|
| 560 |
else
|
| 561 |
eerror "Cannot default to dhcp as there is no dhcp module loaded"
|
| 562 |
eerror "No configuration for ${iface}"
|
| 563 |
return 1
|
| 564 |
fi
|
| 565 |
# else
|
| 566 |
# config=( "null" )
|
| 567 |
# ewarn "Configuration not set for ${iface} - assuming null"
|
| 568 |
# fi
|
| 569 |
fi
|
| 570 |
|
| 571 |
einfo "Bringing up ${iface}"
|
| 572 |
eindent
|
| 573 |
for (( config_counter=0; config_counter<${#config[@]}; config_counter++ )); do
|
| 574 |
# Handle null and noop correctly
|
| 575 |
if [[ ${config[config_counter]} == "null" \
|
| 576 |
|| ${config[config_counter]} == "noop" ]]; then
|
| 577 |
eend 0
|
| 578 |
config_worked=true
|
| 579 |
continue
|
| 580 |
fi
|
| 581 |
|
| 582 |
# We convert it to an array - this has the added
|
| 583 |
# bonus of trimming spaces!
|
| 584 |
conf=( ${config[config_counter]} )
|
| 585 |
einfo "${conf[0]}"
|
| 586 |
|
| 587 |
# Do we have a function for our config?
|
| 588 |
if [[ $( type -t "${conf[0]}_start" ) == "function" ]]; then
|
| 589 |
eindent
|
| 590 |
${conf[0]}_start "${iface}" ; x=$?
|
| 591 |
eoutdent
|
| 592 |
[[ ${x} == 0 ]] && config_worked=true && continue
|
| 593 |
# We need to test to see if it's an IP address or a function
|
| 594 |
# We do this by testing if the 1st character is a digit
|
| 595 |
elif [[ ${conf[0]:0:1} == [[:digit:]] || ${conf[0]} == *:* ]]; then
|
| 596 |
x="0"
|
| 597 |
if [[ ${RC_AUTO_INTERFACE} == "yes" \
|
| 598 |
&& $(type -t address_exists ) == "function" ]]; then
|
| 599 |
if address_exists "${iface}" "${conf[0]}" ; then
|
| 600 |
eerror "${conf[0]%%/*} already taken on ${iface}"
|
| 601 |
x="1"
|
| 602 |
fi
|
| 603 |
fi
|
| 604 |
[[ ${x} == "0" ]] && interface_add_address "${iface}" ${conf[@]}; x="$?"
|
| 605 |
eend "${x}" && config_worked=true && continue
|
| 606 |
else
|
| 607 |
eerror "No loaded modules provide \"${conf[0]}\" (${conf[0]}_start)"
|
| 608 |
fi
|
| 609 |
|
| 610 |
if [[ -n ${fallback[config_counter]} ]]; then
|
| 611 |
einfo "Trying fallback configuration"
|
| 612 |
config[config_counter]="${fallback[config_counter]}"
|
| 613 |
fallback[config_counter]=""
|
| 614 |
|
| 615 |
# Do we have a fallback route?
|
| 616 |
if [[ -n ${fallback_route[config_counter]} ]]; then
|
| 617 |
eval "routes_${ifvar}=( "\"\$\{fallback_route\[${config_counter}\]\[@\]\}\"" )"
|
| 618 |
fallback_route[config_counter]=""
|
| 619 |
fi
|
| 620 |
|
| 621 |
(( config_counter-- )) # since the loop will increment it
|
| 622 |
continue
|
| 623 |
fi
|
| 624 |
done
|
| 625 |
eoutdent
|
| 626 |
|
| 627 |
# We return failure if no configuration parameters worked
|
| 628 |
${config_worked} || return 1
|
| 629 |
|
| 630 |
# Start any modules with _post_start
|
| 631 |
for mod in ${MODULES[@]}; do
|
| 632 |
if [[ $( type -t "${mod}_post_start" ) == "function" ]]; then
|
| 633 |
${mod}_post_start "${iface}" || return 1
|
| 634 |
fi
|
| 635 |
done
|
| 636 |
|
| 637 |
return 0
|
| 638 |
}
|
| 639 |
|
| 640 |
# bool iface_stop(char *interface)
|
| 641 |
#
|
| 642 |
# iface_stop: bring down an interface. Don't trust information in
|
| 643 |
# /etc/conf.d/net since the configuration might have changed since
|
| 644 |
# iface_start ran. Instead query for current configuration and bring
|
| 645 |
# down the interface.
|
| 646 |
iface_stop() {
|
| 647 |
local iface="$1" i aliases need_begin=false mod
|
| 648 |
local RC_INDENTATION="${RC_INDENTATION}"
|
| 649 |
|
| 650 |
# pre Stop any modules
|
| 651 |
for mod in ${MODULES[@]}; do
|
| 652 |
[[ $( type -t "${mod}_pre_stop" ) == "function" ]] \
|
| 653 |
&& ${mod}_pre_stop "${iface}"
|
| 654 |
done
|
| 655 |
|
| 656 |
einfo "Bringing down ${iface}"
|
| 657 |
eindent
|
| 658 |
|
| 659 |
# Collect list of aliases for this interface.
|
| 660 |
# List will be in reverse order.
|
| 661 |
aliases=$( interface_get_aliases_rev "${iface}" )
|
| 662 |
|
| 663 |
# Stop aliases before primary interface.
|
| 664 |
# Note this must be done in reverse order, since ifconfig eth0:1
|
| 665 |
# will remove eth0:2, etc. It might be sufficient to simply remove
|
| 666 |
# the base interface but we're being safe here.
|
| 667 |
for i in ${aliases} ${iface}; do
|
| 668 |
# Stop all our modules
|
| 669 |
for mod in ${MODULES[@]}; do
|
| 670 |
[[ $( type -t "${mod}_stop" ) == "function" ]] && ${mod}_stop "${i}"
|
| 671 |
done
|
| 672 |
|
| 673 |
# A module may have removed the interface
|
| 674 |
if ! interface_exists "${iface}" ; then
|
| 675 |
eend 0
|
| 676 |
continue
|
| 677 |
fi
|
| 678 |
|
| 679 |
# Delete all the addresses for this alias
|
| 680 |
interface_del_addresses "${i}"
|
| 681 |
|
| 682 |
# Do final shut down of this alias
|
| 683 |
if ! ${IN_BACKGROUND}; then
|
| 684 |
ebegin "Shutting down ${i}"
|
| 685 |
interface_iface_stop "${i}"
|
| 686 |
eend "$?"
|
| 687 |
fi
|
| 688 |
done
|
| 689 |
|
| 690 |
# post Stop any modules
|
| 691 |
for mod in ${MODULES[@]}; do
|
| 692 |
# We have already taken down the interface, so no need to error
|
| 693 |
[[ $( type -t "${mod}_post_stop" ) == "function" ]] \
|
| 694 |
&& ${mod}_post_stop "${iface}"
|
| 695 |
done
|
| 696 |
|
| 697 |
return 0
|
| 698 |
}
|
| 699 |
|
| 700 |
# bool run_start(char *iface)
|
| 701 |
#
|
| 702 |
# Brings up ${IFACE}. Calls preup, iface_start, then postup.
|
| 703 |
# Returns 0 (success) unless preup or iface_start returns 1 (failure).
|
| 704 |
# Ignores the return value from postup.
|
| 705 |
# We cannot check that the device exists ourselves as modules like
|
| 706 |
# tuntap make create it.
|
| 707 |
run_start() {
|
| 708 |
local iface="$1" IFVAR=$( bash_variable "$1" )
|
| 709 |
|
| 710 |
# We do this so users can specify additional addresses for lo if they
|
| 711 |
# need too - additional routes too
|
| 712 |
# However, no extra modules are loaded as they are just not needed
|
| 713 |
if [[ ${iface} == "lo" ]]; then
|
| 714 |
metric_lo="0"
|
| 715 |
config_lo=( "127.0.0.1/8 brd 127.255.255.255" "${config_lo[@]}" )
|
| 716 |
routes_lo=( "127.0.0.0/8" "${routes_lo[@]}" )
|
| 717 |
fi
|
| 718 |
|
| 719 |
# We may not have a loaded module for ${iface}
|
| 720 |
# Some users may have "alias natsemi eth0" in /etc/modules.d/foo
|
| 721 |
# so we can work with this
|
| 722 |
# However, if they do the same with eth1 and try to start it
|
| 723 |
# but eth0 has not been loaded then the module gets loaded as
|
| 724 |
# eth0.
|
| 725 |
# Not much we can do about this :(
|
| 726 |
# Also, we cannot error here as some modules - such as bridge
|
| 727 |
# create interfaces
|
| 728 |
if ! interface_exists "${iface}" ; then
|
| 729 |
/sbin/modprobe "${iface}" &>/dev/null
|
| 730 |
fi
|
| 731 |
|
| 732 |
# Call user-defined preup function if it exists
|
| 733 |
if [[ $( type -t preup ) == "function" ]]; then
|
| 734 |
einfo "Running preup function"
|
| 735 |
eindent
|
| 736 |
( preup "${iface}" )
|
| 737 |
eend "$?" "preup ${iface} failed" || return 1
|
| 738 |
eoutdent
|
| 739 |
fi
|
| 740 |
|
| 741 |
# If config is set to noop and the interface is up with an address
|
| 742 |
# then we don't start it
|
| 743 |
local config
|
| 744 |
eval config=( \"\$\{config_${IFVAR}\[@\]\}\" )
|
| 745 |
if [[ ${config[0]} == "noop" ]] && interface_is_up "${iface}" true ; then
|
| 746 |
einfo "Keeping current configuration for ${iface}"
|
| 747 |
eend 0
|
| 748 |
else
|
| 749 |
# Remove noop from the config var
|
| 750 |
[[ ${config[0]} == "noop" ]] \
|
| 751 |
&& eval "config_${IFVAR}=( "\"\$\{config\[@\]:1\}\"" )"
|
| 752 |
|
| 753 |
# There may be existing ip address info - so we strip it
|
| 754 |
interface_del_addresses "${iface}"
|
| 755 |
|
| 756 |
# Start the interface
|
| 757 |
if ! iface_start "${iface}" ; then
|
| 758 |
interface_exists "${iface}" && interface_down "${iface}"
|
| 759 |
eend 1
|
| 760 |
return 1
|
| 761 |
fi
|
| 762 |
fi
|
| 763 |
|
| 764 |
# Call user-defined postup function if it exists
|
| 765 |
if [[ $( type -t postup ) == "function" ]]; then
|
| 766 |
einfo "Running postup function"
|
| 767 |
eindent
|
| 768 |
( postup "${iface}" )
|
| 769 |
eoutdent
|
| 770 |
fi
|
| 771 |
|
| 772 |
return 0
|
| 773 |
}
|
| 774 |
|
| 775 |
# bool run_stop(char *iface) {
|
| 776 |
#
|
| 777 |
# Brings down ${iface}. If predown call returns non-zero, then
|
| 778 |
# stop returns non-zero to indicate failure bringing down device.
|
| 779 |
# In all other cases stop returns 0 to indicate success.
|
| 780 |
run_stop() {
|
| 781 |
local iface="$1" IFVAR=$( bash_variable "$1" ) x
|
| 782 |
|
| 783 |
# Load our ESSID variable so users can use it in predown() instead
|
| 784 |
# of having to write code.
|
| 785 |
local ESSID=$( get_options "ESSID" ) ESSIDVAR
|
| 786 |
[[ -n ${ESSID} ]] && ESSIDVAR=$( bash_variable "${ESSID}" )
|
| 787 |
|
| 788 |
# Call user-defined predown function if it exists
|
| 789 |
if [[ $( type -t predown ) == "function" ]]; then
|
| 790 |
einfo "Running predown function"
|
| 791 |
eindent
|
| 792 |
( predown "${iface}" )
|
| 793 |
eend $? "predown ${iface} failed" || return 1
|
| 794 |
eoutdent
|
| 795 |
elif is_net_fs /; then
|
| 796 |
eerror "root filesystem is network mounted -- can't stop ${iface}"
|
| 797 |
return 1
|
| 798 |
fi
|
| 799 |
|
| 800 |
iface_stop "${iface}" || return 1 # always succeeds, btw
|
| 801 |
|
| 802 |
# Call user-defined postdown function if it exists
|
| 803 |
if [[ $( type -t postdown ) == "function" ]]; then
|
| 804 |
einfo "Running postdown function"
|
| 805 |
eindent
|
| 806 |
( postdown "${iface}" )
|
| 807 |
eoutdent
|
| 808 |
fi
|
| 809 |
|
| 810 |
return 0
|
| 811 |
}
|
| 812 |
|
| 813 |
# bool run(char *iface, char *cmd)
|
| 814 |
#
|
| 815 |
# Main start/stop entry point
|
| 816 |
# We load modules here and remove any functions that they
|
| 817 |
# added as we may be called inside the same shell scope for another interface
|
| 818 |
run() {
|
| 819 |
local iface="$1" cmd="$2" r=1 RC_INDENTATION="${RC_INDENTATION}"
|
| 820 |
local starting=true
|
| 821 |
local -a MODULES mods
|
| 822 |
local IN_BACKGROUND="${IN_BACKGROUND}"
|
| 823 |
|
| 824 |
# No point in backgrounding if we're already there ...
|
| 825 |
# This is also required so we can select the "best" interface
|
| 826 |
if [[ ${IN_BACKGROUND} == "true" || ${IN_BACKGROUND} == "1" ]]; then
|
| 827 |
IN_BACKGROUND=true
|
| 828 |
background=false
|
| 829 |
else
|
| 830 |
IN_BACKGROUND=false
|
| 831 |
fi
|
| 832 |
|
| 833 |
# We need to override the exit function as runscript.sh now checks
|
| 834 |
# for it. We need it so we can mark the service as inactive ourselves.
|
| 835 |
unset -f exit
|
| 836 |
|
| 837 |
eindent
|
| 838 |
[[ ${cmd} == "stop" ]] && starting=false
|
| 839 |
|
| 840 |
# We force lo to only use these modules for a major speed boost
|
| 841 |
[[ ${iface} == "lo" ]] && modules_force=( "iproute2" "ifconfig" "system" )
|
| 842 |
|
| 843 |
if modules_load "${iface}" "${starting}" ; then
|
| 844 |
if [[ ${cmd} == "stop" ]]; then
|
| 845 |
# Reverse the module list for stopping
|
| 846 |
mods=( "${MODULES[@]}" )
|
| 847 |
for ((i = 0; i < ${#mods[@]}; i++)); do
|
| 848 |
MODULES[i]=${mods[((${#mods[@]} - i - 1))]}
|
| 849 |
done
|
| 850 |
|
| 851 |
run_stop "${iface}" && r=0
|
| 852 |
remove_state "${iface}"
|
| 853 |
else
|
| 854 |
run_start "${iface}" && r=0
|
| 855 |
fi
|
| 856 |
fi
|
| 857 |
|
| 858 |
# Only apply best state if we're on auto
|
| 859 |
if [[ ${r} == "0" ]]; then
|
| 860 |
local siface=""
|
| 861 |
if [[ ${RC_AUTO_INTERFACE} == "yes" ]]; then
|
| 862 |
siface=$( select_best_interface )
|
| 863 |
if [[ -n ${siface} ]]; then
|
| 864 |
einfo "Selecting best interface: ${siface}"
|
| 865 |
fi
|
| 866 |
elif [[ ${cmd} == "start" ]]; then
|
| 867 |
siface="${iface}"
|
| 868 |
fi
|
| 869 |
[[ -n ${siface} ]] && apply_state "${siface}"
|
| 870 |
else
|
| 871 |
if [[ ${cmd} == "start" ]]; then
|
| 872 |
# Call user-defined failup if it exists
|
| 873 |
if [[ $( type -t failup ) == "function" ]]; then
|
| 874 |
einfo "Running failup function"
|
| 875 |
eindent
|
| 876 |
( failup "${iface}" )
|
| 877 |
eoutdent
|
| 878 |
fi
|
| 879 |
else
|
| 880 |
# Call user-defined faildown if it exists
|
| 881 |
if [[ $( type -t faildown ) == "function" ]]; then
|
| 882 |
einfo "Running faildown function"
|
| 883 |
eindent
|
| 884 |
( faildown "${iface}" )
|
| 885 |
eoutdent
|
| 886 |
fi
|
| 887 |
fi
|
| 888 |
fi
|
| 889 |
|
| 890 |
return "${r}"
|
| 891 |
}
|
| 892 |
|
| 893 |
# void link_file(char *file)
|
| 894 |
#
|
| 895 |
# Move a config file from /etc to ${netdir} and creates a link if needed.
|
| 896 |
# This enables net-scripts to control the config file for interface management
|
| 897 |
# and allow /etc to become read only.
|
| 898 |
link_file() {
|
| 899 |
local file="$1"
|
| 900 |
local link=$( readlink "/etc/${file}" 2>/dev/null )
|
| 901 |
if [[ ${link} != "${netdir}/${file}" ]]; then
|
| 902 |
if [[ -f "/etc/${file}" ]]; then
|
| 903 |
vewarn "Moving /etc/${file} to ${netdir}/${file} and creating link"
|
| 904 |
mv "/etc/${file}" "${netdir}"
|
| 905 |
ln -snf "${netdir}/${file}" "/etc/${file}"
|
| 906 |
fi
|
| 907 |
fi
|
| 908 |
}
|
| 909 |
|
| 910 |
# bool start(void)
|
| 911 |
#
|
| 912 |
# Start entry point so that we only have one function
|
| 913 |
# which localises variables and unsets functions
|
| 914 |
start() {
|
| 915 |
if [[ ${IN_HOTPLUG} == "1" ]]; then
|
| 916 |
# If we've been called by hotplug, check if we have
|
| 917 |
# a policy for the interface for not starting
|
| 918 |
local x ifvar=$( bash_variable "${IFACE}" )
|
| 919 |
eval x=\"\$\{hotplug_${ifvar}\}\"
|
| 920 |
if [[ ${x} == "no" || ${x} == "false" ]]; then
|
| 921 |
eerror "Not starting interface ${IFACE} due to hotplug policy"
|
| 922 |
unset -f exit
|
| 923 |
mark_service_stopped "net.${IFACE}"
|
| 924 |
exit 1
|
| 925 |
fi
|
| 926 |
fi
|
| 927 |
|
| 928 |
if [[ ! -d "${statedir}/${IFACE}" ]]; then
|
| 929 |
if ! mkdir -m 0755 -p "${statedir}/${IFACE}" ; then
|
| 930 |
eerror "Unable to create state directory!"
|
| 931 |
return 1
|
| 932 |
fi
|
| 933 |
fi
|
| 934 |
|
| 935 |
if [[ ${RC_AUTO_INTERFACE} == "yes" ]]; then
|
| 936 |
link_file "resolv.conf"
|
| 937 |
link_file "ntp.conf"
|
| 938 |
link_file "yp.conf"
|
| 939 |
fi
|
| 940 |
|
| 941 |
einfo "Starting ${IFACE}"
|
| 942 |
run "${IFACE}" start
|
| 943 |
}
|
| 944 |
|
| 945 |
# bool stop(void)
|
| 946 |
#
|
| 947 |
# Stop entry point so that we only have one function
|
| 948 |
# which localises variables and unsets functions
|
| 949 |
stop() {
|
| 950 |
einfo "Stopping ${IFACE}"
|
| 951 |
run "${IFACE}" stop
|
| 952 |
}
|
| 953 |
|
| 954 |
# vim:ts=4
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