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hash mac of host for prefix

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tschettervictor
2024-12-30 16:49:34 -07:00
committed by GitHub
parent d3fd055b67
commit 3c60a4b26b
1 changed files with 3 additions and 2 deletions
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5
usr/local/share/bastille/common.sh
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@@ -73,8 +73,9 @@ warn() {
generate_static_mac() { generate_static_mac() {
local jail_name="${1}" local jail_name="${1}"
local external_interface="${2}" local external_interface="${2}"
local macaddr_prefix="$(ifconfig ${external_interface} | grep ether | awk '{print $2}' | cut -d':' -f1-3)" local external_interface_mac="$(ifconfig ${external_interface} | grep ether | awk '{print $2}' | sed 's#:##g')"
local macaddr_suffix="$(echo -n "${external_interface}${jail_name}" | sha256 | cut -b -5 | sed 's/\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F]\)/\1:\2:\3/')" local macaddr_prefix="$(echo -n "${external_interface_mac}" | sha256 | cut -b -6 | sed 's/\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F]\)/\1:\2:\3/')"
local macaddr_suffix="$(echo -n "${jail_name}" | sha256 | cut -b -5 | sed 's/\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F][0-9a-fA-F]\)\([0-9a-fA-F]\)/\1:\2:\3/')"
if [ -z "${macaddr_prefix}" ] || [ -z "${macaddr_suffix}" ]; then if [ -z "${macaddr_prefix}" ] || [ -z "${macaddr_suffix}" ]; then
error_notify "Failed to generate MAC address." error_notify "Failed to generate MAC address."
fi fi