/etc/avahi/avahi-autoipd.action is in avahi-autoipd 0.6.31-4ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | #!/bin/sh
# This file is part of avahi.
#
# avahi is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# avahi is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with avahi; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.
set -e
# Command line arguments:
# $1 event that happened:
# BIND: Successfully claimed address
# CONFLICT: An IP address conflict happened
# UNBIND: The IP address is no longer needed
# STOP: The daemon is terminating
# $2 interface name
# $3 IP adddress
PATH="$PATH:/usr/bin:/usr/sbin:/bin:/sbin"
# Use a different metric for each interface, so that we can set
# identical routes to multiple interfaces.
METRIC=$((1000 + `cat "/sys/class/net/$2/ifindex" 2>/dev/null || echo 0`))
if [ -x /bin/ip -o -x /sbin/ip ] ; then
# We have the Linux ip tool from the iproute package
case "$1" in
BIND)
ip addr add "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
ip route add default dev "$2" metric "$METRIC" scope link ||:
;;
CONFLICT|UNBIND|STOP)
ip route del default dev "$2" metric "$METRIC" scope link ||:
ip addr del "$3"/16 brd 169.254.255.255 label "$2:avahi" scope link dev "$2"
;;
*)
echo "Unknown event $1" >&2
exit 1
;;
esac
elif [ -x /bin/ifconfig -o -x /sbin/ifconfig ] ; then
# We have the old ifconfig tool
case "$1" in
BIND)
ifconfig "$2:avahi" inet "$3" netmask 255.255.0.0 broadcast 169.254.255.255 up
route add default dev "$2:avahi" metric "$METRIC" ||:
;;
CONFLICT|STOP|UNBIND)
route del default dev "$2:avahi" metric "$METRIC" ||:
ifconfig "$2:avahi" down
;;
*)
echo "Unknown event $1" >&2
exit 1
;;
esac
else
echo "No network configuration tool found." >&2
exit 1
fi
exit 0
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