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@ -465,21 +465,30 @@ resetRepo() {
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return 0
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}
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# We need to know the IPv4 information so we can effectively setup the DNS server
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# Without this information, we won't know where to Pi-hole will be found
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find_IPv4_information() {
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# Detects IPv4 address used for communication to WAN addresses.
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# Accepts no arguments, returns no values.
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# Named, local variables
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local route
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local IPv4bare
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# Find IP used to route to outside world by checking the the route to Google's public DNS server
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route=$(ip route get 8.8.8.8)
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# Use awk to strip out just the interface device as it is used in future commands
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IPv4dev=$(awk '{for (i=1; i<=NF; i++) if ($i~/dev/) print $(i+1)}' <<< "${route}")
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# Get just the IP address
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IPv4bare=$(awk '{print $7}' <<< "${route}")
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# Append the CIDR notation to the IP address
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IPV4_ADDRESS=$(ip -o -f inet addr show | grep "${IPv4bare}" | awk '{print $4}' | awk 'END {print}')
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# Get the default gateway (the way to reach the Internet)
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IPv4gw=$(awk '{print $3}' <<< "${route}")
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# Get just the interface IPv4 address
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# shellcheck disable=SC2059
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printf -v IPv4bare "$(printf ${route#*src })"
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# Get the default gateway IPv4 address (the way to reach the Internet)
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# shellcheck disable=SC2059
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printf -v IPv4gw "$(printf ${route#*via })"
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if ! valid_ip "${IPv4bare}" ; then
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IPv4bare="127.0.0.1"
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fi
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# Append the CIDR notation to the IP address, if valid_ip fails this should return 127.0.0.1/8
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IPV4_ADDRESS=$(ip -oneline -family inet address show | grep "${IPv4bare}" | awk '{print $4}' | awk 'END {print}')
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}
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# Get available interfaces that are UP
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