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SSDP:Discoverに利用するブロードキャストアドレスの経路追加 (Linux版, Raspberry Pi対応)
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#!/bin/bash | |
set -u | |
export LANG="C" | |
function usage() { | |
cat <<EOT | |
Usage: bash ${0##*/} <interface-name> | |
EOT | |
} | |
# 引数チェック | |
if [ $# -ne 1 ]; then usage && exit 1; fi | |
# SSDP discoverで使用するブロードキャストアドレス | |
SSDP_ADDR=239.255.255.250 | |
# 所定のインターフェース経由の経路があるか調べる | |
ip route get ${SSDP_ADDR} | grep -q "dev $1" | |
if [ $? -eq 0 ]; then | |
echo 'Route already configured.' | |
exit 0 | |
fi | |
# 所定のインターフェース経由の経路を追加する | |
route add -host ${SSDP_ADDR} dev $1 | |
if [ $? -ne 0 ]; then | |
echo "Failed to add route to host ${SSDP_ADDR} via $1" | |
exit 1 | |
fi | |
# 最後に再度確認 | |
ip route get ${SSDP_ADDR} | grep -q "dev $1" | |
if [ $? -ne 0 ]; then | |
echo "Something goes wrong!" | |
exit 2 | |
fi | |
echo 'Route added successfully.' | |
exit 0 |
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