Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
| 3 | # We get two "add" events for hostap cards due to wifi0 |
| 4 | echo "$INTERFACE" | grep -q wifi && exit 0 |
| 5 | |
| 6 | # udevd does clearenv(). Export shell PATH to children. |
| 7 | export PATH |
| 8 | |
| 9 | # Check if /etc/init.d/network has been run yet to see if we are |
| 10 | # called by starting /etc/rcS.d/S03udev and not by hotplugging a device |
| 11 | # |
| 12 | # At this stage, network interfaces should not be brought up |
| 13 | # automatically because: |
| 14 | # a) /etc/init.d/network has not been run yet (security issue) |
| 15 | # b) /var has not been populated yet so /etc/resolv,conf points to |
| 16 | # oblivion, making the network unusable |
| 17 | # |
| 18 | |
| 19 | spoofp="`grep ^spoofprotect /etc/network/options`" |
| 20 | if test -z "$spoofp" |
| 21 | then |
| 22 | # This is the default from /etc/init.d/network |
| 23 | spoofp_val=yes |
| 24 | else |
| 25 | spoofp_val=${spoofp#spoofprotect=} |
| 26 | fi |
| 27 | |
| 28 | test "$spoofp_val" = yes && spoofp_val=1 || spoofp_val=0 |
| 29 | |
| 30 | # I think it is safe to assume that "lo" will always be there ;) |
| 31 | if test "`cat /proc/sys/net/ipv4/conf/lo/rp_filter`" != "$spoofp_val" -a -n "$spoofp_val" |
| 32 | then |
| 33 | echo "$INTERFACE" >> /dev/udev_network_queue |
| 34 | exit 0 |
| 35 | fi |
| 36 | |
| 37 | # |
| 38 | # Code taken from pcmcia-cs:/etc/pcmcia/network |
| 39 | # |
| 40 | |
| 41 | # if this interface has an entry in /etc/network/interfaces, let ifupdown |
| 42 | # handle it |
| 43 | if grep -q "iface \+$INTERFACE" /etc/network/interfaces; then |
| 44 | case $ACTION in |
| 45 | add) |
| 46 | ifconfig | grep -q "^$INTERFACE" || ifup $INTERFACE |
| 47 | ;; |
| 48 | remove) |
| 49 | ifdown $INTERFACE |
| 50 | ;; |
| 51 | esac |
| 52 | |
| 53 | exit 0 |
| 54 | fi |