script reconfiguring local interface and cutting off local ssh #31

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1. garywill commented on Jan 13, 2022

   

   garywill

   on Jan 13, 2022

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   I guess this is the network you're trying to make:

   Internet ---[ wlan0 - router - eth0 ]----- computers
   

   Am I getting it right?

   The current script -i eth0 will reset eth0.
   To solve this, we need to implement an option to not reset in future version.

   BTW, currently can you reconnect to router via ssh after running the command and it resetting?

   Before the fix is implemented, there's workaround.
   Try comment out these:
   

   linux-router/lnxrouter

   Lines 2008 to 2032 in f6995bc

   	# initialize subnet interface
   	# take subnet interface down first
   	ip link set down dev ${SUBNET_IFACE} || die "Failed setting ${SUBNET_IFACE} down"
   	# flush old IPs of subnet interface
   	ip addr flush ${SUBNET_IFACE} || die "Failed flush ${SUBNET_IFACE} IP"
   	dealwith_mac # setting MAC should be after setting NM unmanaged
   	[[ $WIFI_IFACE ]] && check_rfkill_unblock_wifi
   	# bring subnet interface up
   	ip link set up dev ${SUBNET_IFACE} || die "Failed bringing ${SUBNET_IFACE} up"
   	# hostapd , haveged
   	[[ $WIFI_IFACE ]] && run_wifi_ap_processes
   	# add ipv4 address to subnet interface
   	ip -4 addr add ${GATEWAY}/24 broadcast ${GATEWAY%.*}.255 dev ${SUBNET_IFACE} || die "Failed setting ${SUBNET_IFACE} IPv4 address"
   	set_ipv6_bits
   	# add ipv6 address to subnet interface
   	if [[ $IPV6 -eq 1 ]] ; then
   	ip -6 addr add ${GATEWAY6}/64 dev ${SUBNET_IFACE} || die "Failed setting ${SUBNET_IFACE} IPv6 address"
   	fi

   
   

   linux-router/lnxrouter

   Line 1162 in f6995bc

   ip link set down dev ${SUBNET_IFACE}

   
   

   linux-router/lnxrouter

   Line 1158 in f6995bc

   ip addr flush ${SUBNET_IFACE}

   
   

   linux-router/lnxrouter

   Line 1169 in f6995bc

   restore_interface_status

   Then run

   sudo lnxrouter -i eth0  -g 192.168.166.100
   

   (Notice this is a dirty workaround for your current use case only, not a true fix)
   I haven't tested.
2. varoudis commented on Jan 13, 2022

   

   varoudis

   on Jan 13, 2022

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   hi and thanks for the quick response!

   This is my actual setup.
   Internet ---[ wlan0 - router (PiZero2) - usb0 ]----- just one computer - ethernet over USB
   I have the feeling that the reset if killing the usb0 (gadget mode) and is not coming back at all...

   Ill check you temp fix.
   Best
   Tasos
3. garywill

   added

   bugSomething isn't workingSomething isn't working

   enhancementNew feature or requestNew feature or request

   on Jan 13, 2022
4. varoudis commented on Jan 19, 2022

   

   varoudis

   on Jan 19, 2022

   Last edited by varoudis

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   @garywill

   This is what I got:

   sudo ./lnxrouter -i usb0 -g 192.168.166.100                                                                                          1 ⨯
   linux-router 0.6.6 (https://github.com/garywill/linux-router)
   Released under LGPL, with no warranty. Use on your own risk.
   
   PID: 1075
   Target interface is usb0 (3a:ea:66:54:bc:a2)
   RTNETLINK answers: File exists
   Error occured
   
   ERROR: Failed setting usb0 IPv4 address
   
   
   
   Doing cleanup..
   Undoing iptables changes ..
   Exiting: This is the only running instance
   Cleaning up done
   

   and:

   sudo ./lnxrouter -i usb0 -o wlan0 -g 192.168.166.100
   [sudo] password for kali:
   linux-router 0.6.6 (https://github.com/garywill/linux-router)
   Released under LGPL, with no warranty. Use on your own risk.
   
   PID: 991
   Target interface is usb0 (3a:ea:66:54:bc:a2)
   RTNETLINK answers: File exists
   Error occured
   
   ERROR: Failed setting usb0 IPv4 address
   
   
   
   Doing cleanup..
   Undoing iptables changes ..
   Exiting: This is the only running instance
   Cleaning up done
   

   With your edits above.
   Thanks
5. garywill commented on Jan 20, 2022

   

   garywill

   on Jan 20, 2022

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   Sorry for inconvinence. Try branch https://github.com/garywill/linux-router/tree/workaround-31