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https://github.com/garywill/linux-router.git
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19
README.md
19
README.md
@@ -4,7 +4,7 @@ Set Linux as router in one command. Able to provide Internet, or create WiFi hot
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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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[More tools and projects 🛠️](https://garywill.github.io) | [🍻 Buy me a coffee ❤️](https://github.com/garywill/receiving/blob/master/receiving_methods.md)
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[Linux-Router News & Developer Notes 📰](https://github.com/garywill/linux-router/issues/28) | [More tools and projects 🛠️](https://garywill.github.io) | [🍻 Buy me a coffee ❤️](https://github.com/garywill/receiving/blob/master/receiving_methods.md)
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## Features
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@@ -23,7 +23,7 @@ Basic features:
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- Create AP on the same interface you are getting Internet (usually require same channel)
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- Transparent proxy (redsocks)
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- Transparent DNS proxy (hijack port 53 packets)
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- Compatible with NetworkManager (automatically set interface as unmanaged)
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- Detect NetworkManager and make sure it won't interfere (handle interface (un)managed status)
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- You can run many instances, to create many different networks. Has instances managing feature.
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**For many other features, see below [CLI usage](#cli-usage-and-other-features)**
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@@ -388,11 +388,11 @@ Options:
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## What changes are done to Linux system
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On exit of a linux-router instance, script **will do cleanup**, i.e. undo most changes to system. Though, **some** changes will **not** be undone, which are:
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On exit of a linux-router instance, script **will do cleanup**, i.e. undo most changes to system. Though, **some** changes (if needed) will **not** be undone, which are:
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1. `/proc/sys/net/ipv4/ip_forward = 1` and `/proc/sys/net/ipv6/conf/all/forwarding = 1`
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2. dnsmasq (if used) in Apparmor complain mode
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3. hostapd (if used) in Apparmor complain mode
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2. dnsmasq in Apparmor complain mode
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3. hostapd in Apparmor complain mode
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4. Kernel module `nf_nat_pptp` loaded
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5. The wifi device which is used to create hotspot is `rfkill unblock`ed
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6. WiFi country code, if user assigns
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@@ -413,16 +413,15 @@ On exit of a linux-router instance, script **will do cleanup**, i.e. undo most c
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## TODO
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<details>
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Sooner is better:
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- Detect firewalld and make sure it won't interfere our interface
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- Compatibility with firewalld
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Future:
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- WPA3
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- Global IPv6
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- Explictly ban forwarding if not needed
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- Bring bridging method back
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</details>
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## License
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linux-router is LGPL licensed
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@@ -486,7 +485,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Visit [**my homepage** 🏡](https://garywill.github.io) to see **more tools and projects** 🛠️.
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> [❤️ Buy me a coffee](https://github.com/garywill/receiving/blob/master/receiving_methods.md) , this project took me lots of time! ([❤️ 扫个码打赏一个!](https://github.com/garywill/receiving/blob/master/receiving_methods.md))
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> [❤️ Buy me a coffee](https://github.com/garywill/receiving/blob/master/receiving_methods.md) , this project took me lots of time! ([❤️ 扫码领红包并打赏一个!](https://github.com/garywill/receiving/blob/master/receiving_methods.md))
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>
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> 🥂 ( ^\_^) o自自o (^_^ ) 🍻
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104
lnxrouter
104
lnxrouter
@@ -626,6 +626,32 @@ get_interface_mac() {
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cat "/sys/class/net/${1}/address"
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}
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get_interface_pci_info() { # pci id / model / virtual
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is_interface "$1" || return
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local device_path
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local pci_id
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local pci_full
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device_path="$(readlink -f /sys/class/net/$1)"
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if [[ "$device_path" == "/sys/devices/pci"* ]]; then
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pci_id="$(echo $device_path | sed 's/\//\n/g' | tail -n 3 |sed -n 1p)"
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if which lspci >/dev/null 2>&1 ; then
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pci_full="$( lspci -D -nn | grep -E "^$pci_id " )"
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echo " PCI: $pci_full"
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else
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echo " PCI: $pci_id"
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fi
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elif [[ "$device_path" == *"/virtual/"* ]]; then
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echo " virtual interface"
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fi
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# TODO usb
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# TODO current driver
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}
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alloc_new_vface_name() { # only for wifi
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local i=0
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local v_iface_name=
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@@ -1158,7 +1184,7 @@ _cleanup() {
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}
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clean_iptables() {
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bash $CONFDIR/undo_iptables.sh
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[[ -f $CONFDIR/undo_iptables.sh ]] && bash $CONFDIR/undo_iptables.sh
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[[ -f $CONFDIR/undo_iptables_2.sh ]] && bash $CONFDIR/undo_iptables_2.sh
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}
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@@ -1173,10 +1199,10 @@ cleanup() {
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clean_iptables > /dev/null
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_cleanup 2> /dev/null
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pgid=$(ps opgid= $$ |awk '{print $1}' )
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echo "Killing PGID $pgid ..."
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kill -15 -$pgid
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sleep 1
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#pgid=$(ps opgid= $$ |awk '{print $1}' )
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#echo "Killing PGID $pgid ..."
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#kill -15 -$pgid
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#sleep 1
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echo "Cleaning up done"
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#kill -9 -$pgid
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}
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@@ -1588,6 +1614,10 @@ decide_ip_addresses() {
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}
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prepare_wifi_interface() {
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sleep 1
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echo; echo; echo;
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echo "Trying to set power_save off ..."
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if [[ $USE_IWCONFIG -eq 0 ]]; then
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iw dev ${WIFI_IFACE} set power_save off
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fi
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@@ -1611,6 +1641,8 @@ prepare_wifi_interface() {
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fi
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fi
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sleep 6
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echo; echo; echo;
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echo "Creating a virtual WiFi interface... "
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VWIFI_IFACE=$(alloc_new_vface_name)
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if iw dev ${WIFI_IFACE} interface add ${VWIFI_IFACE} type __ap; then
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@@ -1925,11 +1957,12 @@ phead
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phead2
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echo
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echo " ============ In dev branch for issue #12 ==========="
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echo "PID: $$"
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TARGET_IFACE="$(decide_target_interface)" || exit 1 # judge wired (-i CONN_IFACE) or wireless hotspot (--ap $WIFI_IFACE)
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echo "Target interface is ${TARGET_IFACE} ($(get_interface_mac $TARGET_IFACE))"
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# TODO: show interface type, device model and pci/usb id (hwdata pci.ids), current driver
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echo "Target interface is ${TARGET_IFACE} ($(get_interface_mac $TARGET_IFACE)) $(get_interface_pci_info $TARGET_IFACE)"
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if [[ "$MAC_USE_RANDOM" -eq 1 ]] ; then
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NEW_MACADDR="$(generate_random_mac)"
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@@ -1949,10 +1982,33 @@ init_trap
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init_conf_dirs # CONFDIR , COMMON_CONFDIR . make dir
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echo -e "\nDistro:"
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cat /etc/os-release
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echo -e "\nKernel:"
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uname -a
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echo
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echo "setting NM log level: nmcli general logging level TRACE domains ALL"
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nmcli general logging level TRACE domains ALL
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echo "Logging journalctl -f"
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journalctl -f &
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echo $! > $CONFDIR/journalctl.pid
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echo "Logging dmesg -W"
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dmesg -W &
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echo $! > $CONFDIR/dmesg.pid
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echo "Logging wpa_supplicant.log"
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tail -f /var/log/wpa_supplicant.log &
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echo $! > $CONFDIR/wpa_supplicant_log.pid
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[[ $WIFI_IFACE ]] && prepare_wifi_interface # this will create virtual ap interface (if needed) and set VWIFI_IFACE and AP_IFACE (if success)
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SUBNET_IFACE="$(decide_subnet_interface)" # SUBNET_IFACE can be TARGET_IFACE (wired) or AP_IFACE (ap) .this is after prepare_wifi_interface()
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echo "$SUBNET_IFACE" > "$CONFDIR/subn_iface"
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ip addr show dev ${SUBNET_IFACE}
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# if virtual wifi interface, will be destroyed, so only need to save status when not
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[[ -z $VWIFI_IFACE ]] && backup_interface_status
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@@ -1972,6 +2028,10 @@ fi
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#===================================================
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#===================================================
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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echo "Trying to set NM unmanage ..."
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# set interface unmanaged by networkManager
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if [[ $NM_RUNNING -eq 1 ]] && nm_knows $TARGET_IFACE; then # if nm knows target iface, should know subnet iface too. but need to wait until nm finds subnet iface (waiting code is in nm_set_unmanaged()
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nm_set_unmanaged ${SUBNET_IFACE} # will write NM_UNM_LIST
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@@ -1980,19 +2040,47 @@ fi
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[[ $NO_DNSMASQ -eq 0 ]] && write_dnsmasq_conf
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#===========================
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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echo "Trying to set ${SUBNET_IFACE} down ..."
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# initialize subnet interface
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# take subnet interface down first
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ip link set down dev ${SUBNET_IFACE} || die "Failed setting ${SUBNET_IFACE} down"
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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echo "Trying to flush ${SUBNET_IFACE} ..."
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# flush old IPs of subnet interface
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ip addr flush ${SUBNET_IFACE} || die "Failed flush ${SUBNET_IFACE} IP"
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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dealwith_mac # setting MAC should be after setting NM unmanaged
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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echo "Trying to check and do rfkill unblock ..."
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[[ $WIFI_IFACE ]] && check_rfkill_unblock_wifi
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sleep 1
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echo; echo; echo;
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ip addr show dev ${SUBNET_IFACE}
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echo "Trying to bring interface ${SUBNET_IFACE} up ..."
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# bring subnet interface up
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ip link set up dev ${SUBNET_IFACE} || die "Failed bringing ${SUBNET_IFACE} up"
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sleep 1
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echo; echo; echo;
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echo "Finished test. Exiting ..."
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clean_exit
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exit
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# hostapd , haveged
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[[ $WIFI_IFACE ]] && run_wifi_ap_processes
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@@ -2065,7 +2153,7 @@ fi
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[[ $NO_DNSMASQ -eq 0 ]] && ( allow_dhcp ; start_dnsmasq )
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echo
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echo "== Setting up completed, now linux-router is working =="
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echo "== Setting up completed, now linux-router should be working =="
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#============================================================
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#============================================================
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Reference in New Issue
Block a user