20 lines
403 B
Bash
20 lines
403 B
Bash
#!/bin/sh
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#
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# Checks if the given interface matches the given ethernet MAC.
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# If it does it exits with 0 (success) status;
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# if it doesn't then it exists with 1 (error) status.
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set -e
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export LANG=C
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if [ ! "$1" -o ! "$2" ]; then
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echo "Usage: $0 IFACE targetMAC"
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exit 1
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fi
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/sbin/ip -brief link show dev "$1" | read iface state mac rest
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targetmac=`echo "$2" | tr A-F a-f`
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test "$targetmac" = "$mac"
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