Patrick Williams | b48b7b4 | 2016-08-17 15:04:38 -0500 | [diff] [blame^] | 1 | #!/bin/sh |
| 2 | |
| 3 | if [ ! -x /usr/sbin/zeroconf ]; then |
| 4 | exit 0 |
| 5 | fi |
| 6 | |
| 7 | # IPv4 link-local addresses (zeroconf) are |
| 8 | # only applicable on the 'inet' address family |
| 9 | [ "X$ADDRFAM" != "Xinet" ] && exit 0 |
| 10 | |
| 11 | # However there are some methods where it doesn't |
| 12 | # make any sense to configure an IPv4LL address |
| 13 | |
| 14 | # not on loopback |
| 15 | [ "X$METHOD" = "Xloopback" ] && exit 0 |
| 16 | |
| 17 | # not on ppp or wvdial either |
| 18 | [ "X$METHOD" = "Xppp" ] && exit 0 |
| 19 | [ "X$METHOD" = "Xwvdial" ] && exit 0 |
| 20 | |
| 21 | # The administrator may have blacklisted interfaces |
| 22 | # or only want zeroconf in a fallback situation |
| 23 | [ -f /etc/default/zeroconf ] && |
| 24 | . /etc/default/zeroconf |
| 25 | |
| 26 | [ -n "$DISABLE" ] && exit 0 |
| 27 | |
| 28 | for BLACK in $IFBLACKLIST; do |
| 29 | case $IFACE in |
| 30 | $BLACK) |
| 31 | exit 0 |
| 32 | ;; |
| 33 | esac |
| 34 | done |
| 35 | |
| 36 | # should we only allocate an address if we do not already have one? |
| 37 | if [ -n "$FALLBACK" ]; then |
| 38 | /sbin/ip addr show $IFACE scope global | grep -q "inet" |
| 39 | IP=$? |
| 40 | if [ $IP -eq 0 ]; then |
| 41 | /sbin/ip route add 169.254.0.0/16 dev $IFACE |
| 42 | exit 0 |
| 43 | fi |
| 44 | fi |
| 45 | |
| 46 | # otherwise, run if we aren't already going |
| 47 | if [ ! -r /var/run/zeroconf.$IFACE.pid ]; then |
| 48 | /usr/sbin/zeroconf -i $IFACE |
| 49 | fi |
| 50 | |
| 51 | exit 0 |