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samba-mirror/ctdb/config/events/legacy/11.routing.script
Martin Schwenke 3df39aa7fb ctdb-scripts: Avoid ShellCheck warning SC2164
SC2164 (warning): Use 'cd ... || exit' or 'cd ... || return' in case cd fails.

A problem can only occur if /etc/ctdb/ or an important subdirectory is
removed, which means the script itself would not be found.  Use && to
silence ShellCheck.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2022-07-22 06:38:32 +00:00

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Executable File

#!/bin/sh
# Attempt to add a set of static routes.
#
# Do this in "ipreallocated" rather than just "startup" because some
# of the routes might be missing because the corresponding interface
# has not previously had any IPs assigned or IPs were previously
# released and corresponding routes were dropped.
#
# Addition of some routes might fail, errors go to /dev/null.
#
# Routes to add are defined in $CTDB_BASE/static-routes. Syntax is:
#
# IFACE NET/MASK GATEWAY
#
# Example:
#
# bond1 10.3.3.0/24 10.0.0.1
[ -n "$CTDB_BASE" ] || \
CTDB_BASE=$(d=$(dirname "$0") && cd -P "$d" && dirname "$PWD")
. "${CTDB_BASE}/functions"
load_script_options
[ -f "${CTDB_BASE}/static-routes" ] || {
exit 0
}
case "$1" in
ipreallocated)
while read iface dest gw; do
ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
done <"${CTDB_BASE}/static-routes"
;;
updateip)
oiface=$2
niface=$3
while read iface dest gw; do
if [ "$niface" = "$iface" ] || [ "$oiface" = "$iface" ] ; then
ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
fi
done <"${CTDB_BASE}/static-routes"
;;
esac
exit 0