refactor listing clients function
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garywill
parent
f9874eaed3
commit
92896c3997
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@ -2,7 +2,7 @@
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Set Linux as router in one command. Able to Provide Internet, or create Wifi hotspot. Support transparent proxy (redsocks). Also useful for routing VM/containers.
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It wraps `iptables`, `dnsmasq` etc. stuff. Use in one command, restore in one command or by `control-c`.
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It wraps `iptables`, `dnsmasq` etc. stuff. Use in one command, restore in one command or by `control-c` (or even by closing terminal window).
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[Buy me a coffee](https://github.com/garywill/receiving/blob/master/receiving_methods.md) :)
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@ -304,7 +304,9 @@ Options:
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Instance managing:
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--daemon Run in background
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--list-running Show running instances
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--list-clients <id> List clients of an instance
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--lc, --list-clients <id>
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List clients of an instance. Or list neighbors of
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any interface, even if it isn't handled by us
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--stop <id> Stop a running instance
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For <id> you can use PID or subnet interface name.
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You can get them with '--list-running'
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@ -342,7 +344,6 @@ Options:
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- WPA3
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- Global IPv6
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- Refactor clients(neighbors) listing function
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- Explictly ban forwarding if not needed
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- Bring bridging method back
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167
lnxrouter
167
lnxrouter
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@ -101,7 +101,9 @@ Options:
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Instance managing:
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--daemon Run in background
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--list-running Show running instances
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--list-clients <id> List clients of an instance
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--lc, --list-clients <id>
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List clients of an instance. Or list neighbors of
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any interface, even if it isn't handled by us
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--stop <id> Stop a running instance
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For <id> you can use PID or subnet interface name.
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You can get them with '--list-running'
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@ -442,7 +444,7 @@ parse_user_options(){
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shift
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LIST_RUNNING=1
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;;
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--list-clients)
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--lc|--list-clients)
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shift
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LIST_CLIENTS_ID="$1"
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shift
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@ -1255,79 +1257,114 @@ get_confdir_from_pid() {
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done
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}
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print_client_by_mac() {
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local line ipaddr hostname
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local mac="$1"
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#======================================================
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if [[ -f "$CONFDIR/dnsmasq.leases" ]]; then
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line=$(grep " $mac " "$CONFDIR/dnsmasq.leases" | tail -n 1)
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ipaddr=$(echo "$line" | cut -d' ' -f3)
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hostname=$(echo "$line" | cut -d' ' -f4)
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fi
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print_clients_from_leases() { # MAC|IP|HOST|lease
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local LEASE_FILE="$1"
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local FILEC
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local line
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local LEASEstr LEASEstamp
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FILEC="$(cat "$LEASE_FILE" | grep -v -E "^duid\b" | sed -r '/^\s*$/d' )"
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[[ -z "$ipaddr" ]] && ipaddr="*"
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[[ -z "$hostname" ]] && hostname="*"
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printf "%-20s %-18s %s\n" "$mac" "$ipaddr" "$hostname"
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}
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print_clients_in_leases() {
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local line ipaddr hostname
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local mac
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if [[ -f "$CONFDIR/dnsmasq.leases" ]]; then
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while read line
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do
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mac=$(echo "$line" | cut -d' ' -f2)
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ipaddr=$(echo "$line" | cut -d' ' -f3)
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hostname=$(echo "$line" | cut -d' ' -f4)
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echo "$FILEC" | while read line
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do
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#echo aa$line
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LEASEstamp="$(echo "$line" | awk '{print $1}')"
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MAC="$(echo "$line" | awk '{print $2}')"
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IP="$(echo "$line" | awk '{print $3}' | sed 's/\[//g' | sed 's/\]//g')"
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HOST="$(echo "$line" | awk '{print $4}' | sed 's/*/?/g')"
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if [[ -n "$MAC" ]]; then
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LEASEstr="$(date -d @${LEASEstamp} +%m-%d_%X)"
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printf "%-20s %-18s %s\n" "MAC" "IP" "Hostname"
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printf "%-20s %-18s %s\n" "$mac" "$ipaddr" "$hostname"
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done < "$CONFDIR/dnsmasq.leases"
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fi
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echo "$MAC|$IP|$HOST|$LEASEstr"
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fi
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done
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}
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print_interface_neighbors_via_iproute() { # MAC|IP|_|STATUS
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local IFACE=$1
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local line
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ip n | grep -E "\bdev $IFACE\b" | sed 's/ /|/g' | while read line
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do
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local MAC IP STATUS
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IP="$(echo $line | awk -F'|' '{print $1}')"
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if [[ "$(echo $line | awk -F'|' '{print $4}')" == "lladdr" ]]; then # has mac
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# if has mac, $4="lladdr" and $5=macaddress and $6+=status
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MAC="$(echo $line | awk -F'|' '{print $5}')"
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STATUS="$(echo $line | awk -F'|' '$1="";$2="";$3="";$4="";$5="";{print}' | awk '{$1=$1;print}'| sed 's/ /,/g')"
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else # no mac
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# if no mac, $4="" and $5+=status
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MAC="?"
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STATUS="$(echo $line | awk -F'|' '$1="";$2="";$3="";$4="";{print}' | awk '{$1=$1;print}' | sed 's/ /,/g')"
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fi
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if [[ -n "$IP" ]]; then
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echo "$MAC|$IP|?|$STATUS"
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fi
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done
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}
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print_interface_neighbors_via_iw() { # MAC|_|_|signal
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local IFACE=$1
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local MAC SIGNAL
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iw dev $IFACE station dump | awk '($1 ~ /Station$/) {print $2}' | while read MAC
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do
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if [[ -n "$MAC" ]]; then
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SIGNAL="$(iw dev $IFACE station get $MAC | grep "signal:" | awk '{print $2}')"
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echo "${MAC}|?|?|${SIGNAL} dBm"
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fi
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done
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}
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list_clients() {
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local subn_iface pid
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# If PID is given, get the associated wifi iface
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local IFACE pid
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local CONFDIR
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local output=""
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# If number (PID) is given, get the associated wifi iface
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if [[ "$1" =~ ^[1-9][0-9]*$ ]]; then
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pid="$1"
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subn_iface=$(get_subn_iface_from_pid "$pid")
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[[ -z "$subn_iface" ]] && die "'$pid' is not the pid of a running $PROGNAME instance."
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fi
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[[ -z "$subn_iface" ]] && subn_iface="$1"
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[[ -z "$pid" ]] && pid=$(get_pid_from_subn_iface "$subn_iface")
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[[ -z "$pid" ]] && die "'$subn_iface' is not used from $PROGNAME instance.\n\
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Maybe you need to pass the virtual interface instead.\n\
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Use --list-running to find it out."
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[[ -z "$CONFDIR" ]] && CONFDIR=$(get_confdir_from_pid "$pid")
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# instance check finished
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##################################################
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# TODO : not compatitable with ipv6 enabled. dns lease and iw is not enough . use 'ip n', so compatitable with any interface
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if [[ -f "$CONFDIR/hostapd.conf" && $USE_IWCONFIG -eq 0 ]]; then
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local awk_cmd='($1 ~ /Station$/) {print $2}'
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local client_list=$(iw dev "$subn_iface" station dump | awk "$awk_cmd")
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if [[ -z "$client_list" ]]; then
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echo "No clients connected"
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return
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IFACE=$(get_subn_iface_from_pid "$pid")
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if [[ -z "$IFACE" ]] ; then
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echo "'$pid' is not the pid of a running $PROGNAME instance." >&2
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exit 1
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fi
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else # non-number given
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IFACE="$1"
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if ( ! is_interface $IFACE ) ; then
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echo "'$IFACE' is not an interface" >&2
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exit 1
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fi
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pid=$(get_pid_from_subn_iface "$IFACE")
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if [[ -n "$pid" ]] ; then # if this interface is hosted by us
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CONFDIR=$(get_confdir_from_pid "$pid")
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output="$(print_clients_from_leases "$CONFDIR/dnsmasq.leases" )"
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else # this interface NOT hosted by us
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echo "Tip: '$IFACE' is not an interface hosted by $PROGNAME" >&2
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fi
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fi
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output="$(echo "$output" ; print_interface_neighbors_via_iw $IFACE) "
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output="$(echo "$output" ; print_interface_neighbors_via_iproute $IFACE)"
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output="$(echo "$output" | sort -k 1 -k 2 -t '|' | uniq | sed -r '/^\s*$/d')"
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printf "%-20s %-18s %s\n" "MAC" "IP" "Hostname"
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local mac
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for mac in $client_list; do
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print_client_by_mac $mac
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done
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else
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echo "Listing clients via DNS lease file. non-DHCPed clients won't be showed"
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print_clients_in_leases
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fi
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echo "$IFACE ($(get_interface_mac $IFACE)) neighbors:"
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local fmt="%-19s%-41s%-20s%s" # string length: MAC 17, ipv4 15, ipv6 39, hostname ?
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printf "$fmt\n" "MAC" "IP" "HOSTNAME" "INFO"
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local line
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echo "$output"| while read line
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do
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if [[ -n "$line" ]]; then
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echo "$line" | awk -F'|' "{printf \"$fmt\n\",\$1,\$2,\$3,\$4}"
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fi
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done
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# TODO : merge same mac and same ip line
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}
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has_running_instance() {
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