version 0.7.3

Signed-off-by: Zehka <git@zehka.net>

README.md

@@ -66,7 +66,7 @@ Internet----(eth0/wlan0)-Linux-(virtual interface)-----VM/container
 
 1-file-script. Release on [Linux-router repo on Github](https://github.com/garywill/linux-router). Just download and run the bash script (meet the dependencies). In this case use without installation.
 
-> I'm currently not packaging for any distro. If you do, open a PR and add the link (can be with a version badge) to list here
+I'm currently not packaging for any distro. If you do, open a PR and add the link (can be with a version badge) to list here
 
 | Linux distro |                                                                                                            |
 | ------------ | ---------------------------------------------------------------------------------------------------------- |
@@ -91,7 +91,7 @@ Internet----(eth0/wlan0)-Linux-(virtual interface)-----VM/container
 
 ### Provide Internet to an interface
 
-```
+```bash
 sudo lnxrouter -i eth1
 ```
 
@@ -99,7 +99,7 @@ no matter which interface (other than `eth1`) you're getting Internet from.
 
 ### Create WiFi hotspot
 
-```
+```bash
 sudo lnxrouter --ap wlan0 MyAccessPoint -p MyPassPhrase
 ```
 
@@ -111,14 +111,14 @@ Clients access Internet through only `isp5`
 
 <details>
 
-```
+```bash
 sudo lnxrouter -i eth1 -o isp5  --no-dns  --dhcp-dns 1.1.1.1  -6 --dhcp-dns6 [2606:4700:4700::1111]
 ```
 
 > In this case of usage, it's recommended to:
 > 
 > 1. Stop serving local DNS
-> 2. Tell clients which DNS to use ISP5's DNS. (Or, a safe public DNS, like above example)
+> 2. Tell clients which DNS to use (ISP5's DNS. Or, a safe public DNS, like above example)
 
 > Also, read *Notice 1*
 
@@ -128,8 +128,11 @@ sudo lnxrouter -i eth1 -o isp5  --no-dns  --dhcp-dns 1.1.1.1  -6 --dhcp-dns6 [26
 
 <details>
 
-```
+```bash
 sudo lnxrouter -n -i eth1
+```
+
+```bash
 sudo lnxrouter -n --ap wlan0 MyAccessPoint -p MyPassPhrase
 ```
 
@@ -143,7 +146,7 @@ sudo lnxrouter -n --ap wlan0 MyAccessPoint -p MyPassPhrase
 
 Create a bridge
 
-```
+```bash
 sudo brctl addbr lxcbr5
 ```
 
@@ -156,7 +159,7 @@ lxc.network.link = lxcbr5
 lxc.network.hwaddr = xx:xx:xx:xx:xx:xx
 ```
 
-```
+```bash
 sudo lnxrouter -i lxcbr5
 ```
 
@@ -168,7 +171,7 @@ All clients' Internet traffic go through, for example, Tor (notice this example
 
 <details>
 
-```
+```bash
 sudo lnxrouter -i eth1 --tp 9040 --dns 9053 -g 192.168.55.1 -6 --p6 fd00:5:6:7::
 ```
 
@@ -193,7 +196,7 @@ To not give our infomation to clients. Clients can still access Internet.
 
 <details>
 
-```
+```bash
 sudo lnxrouter -i eth1 \
     --tp 9040 --dns 9053 \
     --random-mac \
@@ -211,13 +214,13 @@ sudo lnxrouter -i eth1 \
 
 Create a bridge
 
-```
+```bash
 sudo brctl addbr lxdbr5
 ```
 
 Create and add a new LXD profile overriding container's `eth0`
 
-```
+```bash
 lxc profile create profile5
 lxc profile edit profile5
 
@@ -235,13 +238,13 @@ name: profile5
 lxc profile add <container> profile5
 ```
 
-```
+```bash
 sudo lnxrouter -i lxdbr5 --tp 9040 --dns 9053
 ```
 
 To remove that new profile from container
 
-```
+```bash
 lxc profile remove <container> profile5
 ```
 
@@ -249,13 +252,13 @@ lxc profile remove <container> profile5
 
 Add new `eth0` to container overriding default `eth0`
 
-```
+```bash
 lxc config device add <container> eth0 nic name=eth0 nictype=bridged parent=lxdbr5
 ```
 
 To remove the customized `eth0` to restore default `eth0`
 
-```
+```bash
 lxc config device remove <container> eth0
 ```
 
@@ -267,7 +270,7 @@ lxc config device remove <container> eth0
 
 In VirtualBox's global settings, create a host-only network `vboxnet5` with DHCP disabled.
 
-```
+```bash
 sudo lnxrouter -i vboxnet5 --tp 9040 --dns 9053
 ```
 
@@ -279,11 +282,11 @@ sudo lnxrouter -i vboxnet5 --tp 9040 --dns 9053
 
 Create a bridge
 
-```
+```bash
 sudo brctl addbr firejail5
 ```
 
-```
+```bash
 sudo lnxrouter -i firejail5 -g 192.168.55.1 --tp 9040 --dns 9053 
 firejail --net=firejail5 --dns=192.168.55.1 --blacklist=/var/run/nscd
 ```

lnxrouter

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION=0.7.1
+VERSION=0.7.3
 PROGNAME="$(basename "$0")"
 
 export LC_ALL=C
@@ -630,11 +630,7 @@ can_transmit_to_channel() {
     CHANNEL_NUM=$2
 
     if [[ $USE_IWCONFIG -eq 0 ]]; then
-        if [[ $FREQ_BAND == 2.4 ]]; then
+        CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep -E " [0-9]+(\.[0-9]+){0,1} MHz \[${CHANNEL_NUM}\]")
-            CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep " 24[0-9][0-9] MHz \[${CHANNEL_NUM}\]")
-        else
-            CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep " \(49[0-9][0-9]\|5[0-9]\{3\}\) MHz \[${CHANNEL_NUM}\]")
-        fi
         [[ -z "${CHANNEL_INFO}" ]] && return 1
         [[ "${CHANNEL_INFO}" == *no\ IR* ]] && return 1
         [[ "${CHANNEL_INFO}" == *disabled* ]] && return 1
@@ -665,9 +661,6 @@ ieee80211_frequency_to_channel() {
     fi
 }
 
-is_5ghz_frequency() {
-    [[ $1 =~ ^(49[0-9]{2})|(5[0-9]{3})$ ]]
-}
 
 is_interface_wifi_connected() {
     if [[ $USE_IWCONFIG -eq 0 ]]; then
@@ -691,36 +684,40 @@ get_interface_mac() {
     cat "/sys/class/net/${1}/address"
 }
 
-get_interface_pci_info() {  # pci id / model / virtual
+show_interface_pci_info() {  # pci id / model / virtual
     is_interface "$1" || return
     
     local device_path
-    local pci_id
+    local bus_id=""
-    local pci_full
+    local device_type_and_bus_id="unknown"
-    
+    local driver=""
-    local pci_path
+    local device_fullname=""
-    local driver
     
     device_path="$(readlink -f /sys/class/net/$1)"
-    pci_path=$device_path/../..
     
     if [[ "$device_path" == "/sys/devices/pci"* ]]; then
-        pci_id="$(echo "$device_path" | sed 's/\//\n/g' | tail -n 3 |sed -n 1p)"
+        local pci_path
+
+        pci_path=$device_path/../..
+        
+        if [[ -d "$pci_path/driver" ]] ; then
+            driver=$(readlink -f "$pci_path/driver" | sed 's/\//\n/g' | tail -n 1)
+        fi
+        
+        bus_id="$(echo "$device_path" | sed 's/\//\n/g' | tail -n 3 |sed -n 1p)"
+        device_type_and_bus_id="PCI: $bus_id"
         
         if which lspci >/dev/null 2>&1 ; then
-            pci_full="$( lspci -D -nn -s "$pci_id" )"
+            device_fullname="$( lspci -D -nn -s "$bus_id" | awk '{$1="" ; print $0}' )"
-            echo -n "  PCI: $pci_full"
-        else
-            echo -n "  PCI: $pci_id"
         fi
+        
     elif [[ "$device_path" == *"/virtual/"* ]]; then
-        echo "  virtual interface"
+        device_type_and_bus_id="virtual interface"
     fi
     
-    if [[ -d "$pci_path/driver" ]] ; then
+    echo "$device_type_and_bus_id"
-        driver=$(readlink -f "$pci_path/driver" | sed 's/\//\n/g' | tail -n 1)
+    [[ -n "$driver" ]] && echo "System-already-loaded driver: $driver"
-        echo -n "    System-already-loaded driver: $driver"
+    [[ -n "$device_fullname" ]] && echo "$device_fullname"
-    fi
     echo ""
     # TODO usb
 }
@@ -1700,7 +1697,7 @@ prepare_wifi_interface() {
     
         # TODO move this to check_wifi_settings() ?
         if is_interface_wifi_connected "${WIFI_IFACE}"; then
-            WIFI_IFACE_FREQ=$(iw dev "${WIFI_IFACE}" link | grep -i freq | awk '{print $2}')
+            WIFI_IFACE_FREQ=$(iw dev "${WIFI_IFACE}" link | grep -i freq | awk '{print $2}' | sed 's/\.00*$//g')  # NOTE we assume integer currently, which can be right, or wrong  in the future
             WIFI_IFACE_CHANNEL=$(ieee80211_frequency_to_channel "${WIFI_IFACE_FREQ}")
             
             echo "${WIFI_IFACE} already working in channel ${WIFI_IFACE_CHANNEL} (${WIFI_IFACE_FREQ} MHz)"
@@ -2081,7 +2078,8 @@ echo
 echo "PID: $$"
 
 TARGET_IFACE="$(decide_target_interface)" || exit 1 # judge wired (-i CONN_IFACE) or wireless hotspot (--ap $WIFI_IFACE)
-echo "Target interface is ${TARGET_IFACE} ($(get_interface_mac "$TARGET_IFACE")) $(get_interface_pci_info "$TARGET_IFACE")"
+echo "Target interface is ${TARGET_IFACE} ($(get_interface_mac "$TARGET_IFACE")) "
+show_interface_pci_info "$TARGET_IFACE"
 
 if [[ "$MAC_USE_RANDOM" -eq 1 ]] ; then
     NEW_MACADDR="$(generate_random_mac)"