物联网设备安全

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# Pad it so 0:4:5a:fd:83:f9 becomes 00:04:5a:fd:83:f9 (thanks

# http://code.google.com/p/plazes/wiki/FindingMACAddress)

padded_m=`echo $m |

sed "s/^\(.\):/0\1:/" |

sed "s/:\(.\):/:0\1:/g" |

sed "s/:\(.\):/:0\1:/g" |

sed "s/:\(.\)$/:0\1/"`

# Ignore broadcast entries in the ARP table

if [ $padded_m != "FF:FF:FF:FF:FF:FF" ]

then

# Compute MD5 hash of the MAC address

bridge_username=( $(md5 -q -s $padded_m))

# Use the hash to attempt to instruct the bridge to turn

# all lights off

turn_it_off=($(curl --connect-timeout

5 -s -X PUT

http://$bridge_ip/api/$bridge_username/groups/0/action -d

{\"on\":false} | grep success))

# If it worked, go ...