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Config File

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This commit is contained in:
Michel Roegl-Brunner 2025-05-20 09:38:30 +02:00
parent 27da0b98fe
commit 77080e6fb5
1 changed files with 33 additions and 18 deletions
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49
misc/config-file.func
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@ -265,7 +265,7 @@ config_file() {
local ip_cidr_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/([0-9]{1,2})$' local ip_cidr_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/([0-9]{1,2})$'
local ip_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$' local ip_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$'
ip_range_regex="^([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}-([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}$" local ip_cidr_range_regex="^([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}$"
if [[ -n ${NET-} ]]; then if [[ -n ${NET-} ]]; then
if [ "$NET" == "dhcp" ]; then if [ "$NET" == "dhcp" ]; then
@ -285,34 +285,49 @@ config_file() {
msg_error "Gateway IP Address cannot be empty" msg_error "Gateway IP Address cannot be empty"
exit exit
fi fi
elif [[ "$NET" =~ ^([0-9]+\.[0-9]+\.[0-9]+)\.([0-9]+)/([0-9]+)-([0-9]+)/([0-9]+)$ ]]; then elif [[ "$NET" == *-* ]]; then
base="${BASH_REMATCH[1]}" IFS="-" read -r ip_start ip_end <<< "$NET"
start="${BASH_REMATCH[2]}"
end="${BASH_REMATCH[4]}"
cidr_start="${BASH_REMATCH[3]}"
cidr_end="${BASH_REMATCH[5]}"
# Optional check: CIDR must match (can be customized) if [[ ! "$ip_start" =~ $ip_cidr_regex ]] || [[ ! "$ip_end" =~ $ip_cidr_regex ]]; then
if [[ "$cidr_start" != "$cidr_end" ]]; then echo "Invalid IP range format: $NET"
msg_error "Mismatched CIDR: /$cidr_start and /$cidr_end"
exit 1 exit 1
fi fi
msg_info "Checking IPs from $base.$start/$cidr_start to $base.$end/$cidr_start" # Extract IPs and ignore CIDR for scanning
ip1="${ip_start%%/*}"
ip2="${ip_end%%/*}"
cidr="${ip_start##*/}"
for ((i=start; i<=end; i++)); do # Convert IP to integer
ip="$base.$i" ip_to_int() {
local IFS=.
read -r i1 i2 i3 i4 <<< "$1"
echo $(( (i1 << 24) + (i2 << 16) + (i3 << 8) + i4 ))
}
# Convert integer back to IP
int_to_ip() {
local ip=$1
echo "$(( (ip >> 24) & 0xFF )).$(( (ip >> 16) & 0xFF )).$(( (ip >> 8) & 0xFF )).$(( ip & 0xFF ))"
}
start_int=$(ip_to_int "$ip1")
end_int=$(ip_to_int "$ip2")
for ((ip_int=start_int; ip_int<=end_int; ip_int++)); do
ip=$(int_to_ip $ip_int)
if ! ping -c 1 -W 1 "$ip" >/dev/null 2>&1; then if ! ping -c 1 -W 1 "$ip" >/dev/null 2>&1; then
NET="$ip/$cidr_start" NET="$ip/$cidr"
msg_ok "Selected unused IP: $NET" echo "Selected unused IP: $NET"
break break
fi fi
done done
if [[ ! "$NET" =~ / ]]; then if [[ "$NET" == *-* ]]; then
msg_error "No free IP found in range" echo "No free IP found in range"
exit 1 exit 1
fi fi
if [ -n "$GATE" ]; then if [ -n "$GATE" ]; then
if [[ "$GATE" =~ $ip_regex ]]; then if [[ "$GATE" =~ $ip_regex ]]; then
echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE${CL}" echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE${CL}"