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# dahdi This shell script takes care of loading and unloading \
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# DAHDI Telephony interfaces
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# description: The DAHDI drivers allow you to use your linux \
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# computer to accept incoming data and voice interfaces
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# config: /etc/dahdi/init.conf
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# Required-Start: $local_fs $remote_fs
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# Required-Stop: $local_fs $remote_fs
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# Should-Start: $network $syslog
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# Should-Stop: $network $syslog
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# Default-Start: 2 3 4 5
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# Description: dahdi - load and configure DAHDI modules
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# Don't edit the following values. Edit /etc/dahdi/init.conf instead.
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DAHDI_CFG=/usr/sbin/dahdi_cfg
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DAHDI_CFG_CMD=${DAHDI_CFG_CMD:-"$DAHDI_CFG"} # e.g: for a custom system.conf location
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FXOTUNE=/usr/sbin/fxotune
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# The default syncer Astribank. Usually set automatically to a sane
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# value by xpp_sync(1) if you have an Astribank. You can set this to an
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# explicit Astribank (e.g: 01).
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# The maximal timeout (seconds) to wait for udevd to finish generating
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# device nodes after the modules have loaded and before running dahdi_cfg.
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# A list of modules to unload when stopping.
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# All of their dependencies will be unloaded as well.
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DAHDI_UNLOAD_MODULES="dahdi"
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# Determine which kind of configuration we're using
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system=redhat # assume redhat
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if [ -f /etc/debian_version ]; then
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if [ -f /etc/gentoo-release ]; then
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if [ -f /etc/SuSE-release -o -f /etc/novell-release ]
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# Source function library.
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if [ $system = redhat ]; then
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. $initdir/functions || exit 0
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DAHDI_MODULES_FILE="/etc/dahdi/modules"
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[ -r /etc/dahdi/init.conf ] && . /etc/dahdi/init.conf
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if [ $system = redhat ]; then
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LOCKFILE=/var/lock/subsys/dahdi
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# recursively unload a module and its dependencies, if possible.
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# where's modprobe -r when you need it?
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# inputs: module to unload.
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# returns: the result from
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line=`lsmod 2>/dev/null | grep "^$1 "`
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if [ "$line" = '' ]; then return; fi # module was not loaded
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# $1: the original module, $2: size, $3: refcount, $4: deps list
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mods=`echo $4 | tr , ' '`
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# xpp_usb keeps the xpds below busy if an xpp hardware is
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# connected. Hence must be removed before them:
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case "$module" in xpd_*) mods="xpp_usb $mods";; esac
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ec_modules="$mod $ec_modules"
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# run in a subshell, so it won't step over our vars:
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# Now that all the other dependencies are unloaded, we can unload the
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# dahdi_echocan modules. The drivers that register spans may keep
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# references on the echocan modules before they are unloaded.
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for mod in $ec_modules; do
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for module in $DAHDI_UNLOAD_MODULES; do
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unload_module $module
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# In (xpp) hotplug mode, the init script is also executed from the
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# hotplug hook. In that case it should not attempt to loade modules.
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# This function only retunrs false (1) if we're in hotplug mode and
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# coming from the hotplug hook script.
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hotplug_should_load_modules() {
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if [ "$XPP_HOTPLUG_DAHDI" = yes -a "$CALLED_FROM_ATRIBANK_HOOK" != '' ]
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# In (xpp) hotplug mode: quit after we loaded modules.
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# In hotplug mode, the main run should end here, whereas the rest of the
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# script should be finished by the instance running from the hook.
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# Note that we only get here if there are actually Astribanks on the
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# system (otherwise noone will trigger the run of the hotplug hook
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hotplug_exit_after_load() {
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if [ "$XPP_HOTPLUG_DAHDI" = yes -a "$CALLED_FROM_ATRIBANK_HOOK" = '' ]
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# Initialize the Xorcom Astribank (xpp/) using perl utiliites:
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# do nothing if there are no astribank devices:
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if ! /usr/share/dahdi/waitfor_xpds; then return 0; fi
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hotplug_exit_after_load
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# overriding locales for the above two, as perl can be noisy
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# when locales are missing.
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# No register all the devices if they didn't auto-register:
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LC_ALL=C dahdi_registration on
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if ! echo /var/lib/digium/licenses/HPEC-*.lic | grep -v '\*' | grep -q .; then
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# dahdihpec_enable not installed in /usr/sbin
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if [ ! -f /usr/sbin/dahdihpec_enable ]; then
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echo -n "Running dahdihpec_enable: Failed"
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echo " The dahdihpec_enable binary is not installed in /usr/sbin."
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# dahdihpec_enable not set executable
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if [ ! -x /usr/sbin/dahdihpec_enable ]; then
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echo -n "Running dahdihpec_enable: Failed"
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echo " /usr/sbin/dahdihpec_enable is not set as executable."
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# dahdihpec_enable properly installed
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if [ $system = debian ]; then
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echo -n "Running dahdihpec_enable: "
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/usr/sbin/dahdihpec_enable 2> /dev/null
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elif [ $system = redhat ]; then
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action "Running dahdihpec_enable: " /usr/sbin/dahdihpec_enable
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echo " This can be caused if you had already run dahdihpec_enable, or if your HPEC license is no longer valid."
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if ! grep -q ' DYN/' /proc/dahdi/* 2>/dev/null; then return; fi
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# we should only get here if we have dynamic spans. Right?
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# Some systems, e.g. Debian Lenny, add here -b, which will break
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# loading of modules blacklisted in modprobe.d/*
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unset MODPROBE_OPTIONS
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modules=`sed -e 's/#.*$//' $DAHDI_MODULES_FILE 2>/dev/null`
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#if [ "$modules" = '' ]; then
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echo "Loading DAHDI hardware modules:"
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for line in $modules; do
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if [ $system = debian ]; then
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if modprobe $line 2> /dev/null; then
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elif [ $system = redhat ]; then
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action " ${line}: " modprobe $line
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if [ ! -x "$DAHDI_CFG" ]; then
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echo "dahdi_cfg not executable"
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if [ ! -f /etc/dahdi/system.conf ]; then
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echo "/etc/dahdi/system.conf not found. Nothing to do."
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# See how we were called.
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if hotplug_should_load_modules; then
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TMOUT=$DAHDI_DEV_TIMEOUT # max secs to wait
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while [ ! -d /dev/dahdi ] ; do
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TMOUT=`expr $TMOUT - 1`
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if [ $TMOUT -eq 0 ] ; then
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echo "Error: missing /dev/dahdi!"
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if [ ! -e /proc/dahdi/1 ]; then
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echo "No hardware timing source found in /proc/dahdi, loading dahdi_dummy"
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modprobe dahdi_dummy 2> /dev/null
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if [ $system = debian ]; then
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echo -n "Running dahdi_cfg: "
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$DAHDI_CFG_CMD 2> /dev/null && echo -n "done"
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elif [ $system = redhat ]; then
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action "Running dahdi_cfg: " $DAHDI_CFG_CMD
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if [ "$LOCKFILE" != '' ]; then
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[ $RETVAL -eq 0 ] && touch $LOCKFILE
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if [ -x "$FXOTUNE" ] && [ -r /etc/fxotune.conf ]; then
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# Allowed to fail if e.g. Asterisk already uses channels:
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# Set the right Astribanks ticker:
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LC_ALL=C xpp_sync "$XPP_SYNC"
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#shutdown_dynamic # FIXME: needs test from someone with dynamic spans
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echo -n "Unloading DAHDI hardware modules: "
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if unload_modules; then
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if [ "$LOCKFILE" != '' ]; then
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[ $RETVAL -eq 0 ] && rm -f $LOCKFILE
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restart|force-reload)
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if [ $system = debian ]; then
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echo -n "Rerunning dahdi_cfg: "
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$DAHDI_CFG_CMD 2> /dev/null && echo -n "done"
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elif [ $system = redhat ]; then
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action "Rerunning dahdi_cfg: " $DAHDI_CFG_CMD
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if [ -d /proc/dahdi ]; then
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echo "Usage: dahdi {start|stop|restart|status|reload|unload}"
added
removed
.pc/init_unload_oslec/dahdi.init
