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fas: Add mesh interface detection, syslog and command line help.

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Usage- get_client_interface [clientmac]

  Returns- [local_interface] [meshnode_mac] [local_mesh_interface]

  Where-
    [local_interface] is the local interface the client is using.

    [lmeshnode_mac] is the mac address of the 802.11s meshnode the
      client is using (null if mesh not present).

    [local_mesh_interface] is the local 802.11s interface the
      client is using (null if mesh not present).

Signed-off-by: Rob White <rob@blue-wave.net>
This commit is contained in:
Rob White
2019-12-28 15:00:15 +00:00
parent 58182cd4c0
commit c048e2209f
1 changed files with 36 additions and 5 deletions
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41
forward_authentication_service/libs/get_client_interface.sh
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@@ -2,22 +2,51 @@
#Copyright (C) Blue Wave Projects and Services 2015-2019
#This software is released under the GNU GPL license.
# This script requires the iw package (usually available by default)
pid=$(ps | grep get_client_interface | awk -F ' ' 'NR==2 {print $1}')
# This script requires the iw and ip packages (usually available by default)
if [ -z $(command -v ip) ]; then
echo "ip utility not available" | logger -p "daemon.warn" -s -t "NDS-Library[$pid]"
exit 1
fi
if [ -z $(command -v iw) ]; then
echo "iw utility not available" | logger -p "daemon.warn" -s -t "NDS-Library[$pid]"
exit 1
fi
# mac address of client is passed as a command line argument
mac=$1
# exit if mac not passed
if [ -z $mac ]; then
if [ $(echo $mac | awk -F ':' '{print NF}') != 6 ]; then
echo "
Usage: get_client_interface [clientmac]
Returns: [local_interface] [meshnode_mac] [local_mesh_interface]
Where:
[local_interface] is the local interface the client is using.
[meshnode_mac] is the mac address of the 802.11s meshnode the
client is using (null if mesh not present).
[local_mesh_interface] is the local 802.11s interface the
client is using (null if mesh not present).
"
exit 1
fi
# Get default interface
# This will be the interface NDS is bound to eg. br-lan
clientif=$(ip -4 neigh | awk -F ' ' 'match($s,"'"$mac"' REACHABLE")>0 {printf $3" "}')
clientif=$(ip -4 neigh | awk -F ' ' 'match($s,"'"$mac"' ")>0 {printf $3}')
if [ -z $clientif ]; then
# The client has gone offline eg battery saving or switched to another ssid
echo "Client $mac is not online" | logger -p "daemon.info" -s -t "NDS-Library[$pid]"
exit 1
fi
@@ -29,14 +58,16 @@ interface_list=$(iw dev | awk -F 'Interface ' 'NF>1{printf $2" "}')
# Scan the wireless interfaces on this device for the client mac
for interface in $interface_list; do
macscan=$(iw dev $interface station dump | awk -F " " 'match($s, "'"$mac"'")>0{print $2}')
meshmac=$(iw dev $interface mpp dump | awk -F "$mac " 'NF>1{print $2}')
if [ ! -z $macscan ]; then
clientif=$interface
break
fi
done
# Return the local interface the client is using
echo $clientif
# Return the local interface the client is using, the mesh node mac address and the local mesh interface
echo "$clientif $meshmac"
exit 0