64 lines
1.2 KiB
Bash
64 lines
1.2 KiB
Bash
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#!/bin/bash
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(
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. /etc/router-checks.conf
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exec >>$LOG_FILE 2>&1
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date
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echo "... STARTING"
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. "$LIB_DIR/pings"
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echo $$ > $PID_FILE
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stop_file="$PID_FILE.$$"
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trap "rm -f $stop_file" SIGINT SIGTERM
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touch $stop_file
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SLEEP_TIME=60
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while [ -f "$stop_file" ]; do
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sleep $SLEEP_TIME
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SLEEP_TIME=1
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pr_switch=`mktemp`
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if [ -f "$ACTIVATION_FILE" ]; then
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# When the primary router is active, disable it if the switch
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# is off-line
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wait_pings `try_ping $SWITCH_ADDR $pr_switch`
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if [ -f "$pr_switch" ]; then
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date
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echo "de-activating connection"
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$LIB_DIR/deactivate.sh
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rm -f "$ACTIVATION_FILE"
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SLEEP_TIME=10
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fi
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else
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# When the primary router is inactive, enable it if the switch
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# is up and the main router IP does not exist
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pr_main=`mktemp`
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wait_pings `try_ping $SWITCH_ADDR $pr_switch` \
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`try_ping $MAIN_ADDR $pr_main`
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if [ -f "$pr_main" ] && ! [ -f "$pr_switch" ]; then
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date
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echo "activating connection"
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$LIB_DIR/activate.sh
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touch "$ACTIVATION_FILE"
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SLEEP_TIME=20
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fi
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rm -f "$pr_main"
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fi
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rm -f "$pr_switch"
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done
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if [ -f "$ACTIVATION_FILE" ]; then
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$LIB_DIR/deactivate.sh
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rm -f "$ACTIVATION_FILE"
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fi
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date
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echo "... EXITING"
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rm "$PID_FILE"
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) &
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