mirror of
https://github.com/rootzoll/raspiblitz.git
synced 2025-02-25 15:10:38 +01:00
81 lines
2 KiB
Bash
Executable file
81 lines
2 KiB
Bash
Executable file
#!/bin/bash
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# command info
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if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
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echo "# handle the internet connection"
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echo "# internet.sh status"
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exit 1
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fi
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# FUNCTIONS
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isValidIP() {
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if [ "$1" != "${1#*[0-9].[0-9]}" ]; then
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# IPv4
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echo 1
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elif [ "$1" != "${1#*:[0-9a-fA-F]}" ]; then
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# IPv6
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echo 1
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else
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# unkown
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echo 0
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fi
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}
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# load local config (but should also work if not available)
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source /mnt/hdd/raspiblitz.conf 2>/dev/null
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# get local IP (from different sources)
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localip_ALL=$(ip addr | grep 'state UP' -A2 | egrep -v 'docker0' | egrep -i '(*[eth|ens|enp|eno|wlan|wlp][0-9]$)' | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
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if [ $(isValidIP ${localip_ALL}) -eq 0 ]; then
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localip_ALL=""
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fi
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localip_LAN=$(ip addr | grep 'state UP' -A2 | egrep -v 'docker0' | egrep -i '(*[eth][0-9]$)' | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
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if [ $(isValidIP ${localip_LAN}) -eq 0 ]; then
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localip_LAN=""
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fi
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localip="${localip_ALL}"
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if [ ${#localip_LAN} -gt 0 ]; then
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# prefer local IP over LAN over all other if available
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localip="${localip_LAN}"
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fi
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# check DHCP
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dhcp=1
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if [ "${localip:0:4}" = "169." ]; then
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dhcp=0
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fi
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# check for internet connection
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online=0
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if [ ${#dnsServer} -gt 0 ]; then
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# re-test with other server
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online=$(ping ${dnsServer} -c 1 -W 2 | grep -c '1 received')
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fi
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if [ ${online} -eq 0 ]; then
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# re-test with other server
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online=$(ping 1.0.0.1 -c 1 -W 2 | grep -c '1 received')
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fi
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if [ ${online} -eq 0 ]; then
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# re-test with other server
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online=$(ping 8.8.8.8 -c 1 -W 2 | grep -c '1 received')
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fi
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if [ ${online} -eq 0 ]; then
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# re-test with other server
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online=$(ping 208.67.222.222 -c 1 -W 2 | grep -c '1 received')
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fi
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if [ ${online} -eq 0 ]; then
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# re-test with other server
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online=$(ping 1.1.1.1 -c 1 -W 2 | grep -c '1 received')
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fi
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if [ "$1" == "status" ]; then
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echo "localip=${localip}"
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echo "dhcp=${dhcp}"
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echo "online=${online}"
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exit 0
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else
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echo "err='parameter not known - run with -help'"
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fi
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