dahdi-tools/dahdi_span_config

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#! /bin/sh
#
# /usr/share/dahdi/dahdi_span_config
#
# Called by UDEV when a dahdi span is added/removed
#
me=`basename $0`
dir=`dirname $0`
LOGGER="logger -i -t '$me'"
NAME=`basename "$DEVPATH" | tr -c 'A-Za-z0-9-' '_'`
exec 2> /dev/null
# Always redirect stderr somewhere, otherwise the shell script will die
# when it tries to do I/O related stuff on closed file descriptor.
# Our default is to throw it down the bit-bucket.
#exec 2> /dev/console
## If you wish to trace this script:
#exec 2> "/tmp/${me}.$NAME" 1>&2
# Our directory in the beginning, so we can use local lab setup
PATH="$dir:/usr/sbin:/sbin:/usr/bin:/bin"
set -e
#echo >&2 "$0($ACTION): DEBUG($# args): '$*'"
# Old driver. These scripts probably won't work anyway.
if [ ! -f /sys/module/dahdi/parameters/auto_assign_spans ]; then
$LOGGER "Old driver (no auto_assign_spans parameter). Skip $DEVPATH"
exit 0
fi
if [ $(cat /sys/module/dahdi/parameters/auto_assign_spans) -eq 1 ]; then
$LOGGER "auto_assign_spans=1. Skip $DEVPATH"
exit 0
fi
# Do we have a configuration?
if [ -f /etc/dahdi/init.conf ]; then
. /etc/dahdi/init.conf
fi
if [ "$DAHDI_UDEV_DISABLE_SPANS" = 'yes' ]; then
echo "DAHDI_UDEV_DISABLE_SPANS=yes. Skip $DEVPATH" | $LOGGER
exit 0
fi
# Can we pass a different value so we can use
# alternate (testing) configuration?
# Meanwhile, make it hard-coded.
DAHDICONFDIR='/etc/dahdi'
export DAHDICONFDIR
run_dahdi_cfg() {
echo "dahdi_cfg: span $spanno <$basechan-$endchan> ($DEVPATH)"
dahdi_cfg -c "$cfg_file" -S "$spanno" -C "$basechan-$endchan"
}
configure_span() {
span_devpath="$1"
# Sanity check
checkit=`"dahdi_cfg" --help 2>&1 | grep -- '-S' | wc -l`
if [ "$checkit" != 1 ]; then
echo "Bad dahdi_cfg (no -S support). Skipping"
exit 0
fi
# Set variables
spanno=`echo "$span_devpath" | sed 's,.*/span-,,'`
basechan=`cat "$span_devpath/basechan"`
channels=`cat "$span_devpath/channels"`
endchan=`expr "$basechan" + "$channels" - 1`
# Configure DAHDI
cfg_file="$DAHDICONFDIR/system.conf"
if [ -r "$cfg_file" ]; then
run_dahdi_cfg
else
echo "Using auto-generated config for dahdi_cfg"
cfg_file='-'
DAHDI_CONF_FILE="$cfg_file" dahdi_genconf system | run_dahdi_cfg
fi
fxotune_cfg='/etc/fxotune.conf'
if [ -r "$fxotune_cfg" ]; then
echo "fxotune: span $spanno <$basechan-$endchan> ($DEVPATH)"
fxotune -s -b "$basechan" -e "$endchan"
fi
# Add to asterisk
asterisk -rx "dahdi create channels $basechan $endchan"
}
case "$ACTION" in
add)
echo "$ACTION: $DEVPATH" | $LOGGER
# Can have alternate dahdi configuration directory for debugging
# export DAHDICONFDIR="/tmp/xortel/dahdi"
configure_span "/sys$DEVPATH" 2>&1 | $LOGGER
;;
remove|online|offline)
# Nothing to do yet...
echo "$ACTION: $DEVPATH" | $LOGGER
;;
*)
echo "UNHANDLED: $ACTION: $DEVPATH" | $LOGGER
;;
esac