Enable arbitrary port forwarding via config file (#40)

* Add the possibility to forward ports from host to guest

* Reorganized code, fixed a bug, updated the README

* Updated the README

* Forgot to remove 'exit' ....

README.md

@@ -57,6 +57,7 @@ guest_os="linux"
 iso="/media/$USER/Quickemu/ubuntu/focal-desktop-amd64.iso"
 disk_img="/media/$USER/Quickemu/ubuntu/focal-desktop-amd64.qcow2"
 disk=128G
+port_forwards=("8123:8123" "8888:80")
 usb_devices=("046d:082d" "046d:085e")
 ```
 
@@ -84,6 +85,9 @@ Starting /media/martin/Quickemu/ubuntu-focal-desktop.conf
  - Display:  SDL
  - smbd:     /home/martin will be exported to the guest via smb://10.0.2.4/qemu
  - ssh:      22221/tcp is connected. Login via 'ssh user@localhost -p 22221'
+ - PORTS:    Port forwards requested:
+              - 8123 => 8123
+              - 8888 => 80
  - USB:      Device pass-through requested:
               - Logitech, Inc. HD Pro Webcam C920
               - Logitech, Inc. Logitech BRIO
@@ -114,6 +118,7 @@ iso="/media/$USER/Quickemu/windows10/Win10_1909_English_x64.iso"
 driver_iso="/media/$USER/Quickemu/windows10/virtio-win-0.1.173.iso"
 disk_img="/media/$USER/Quickemu/windows10/windows10.qcow2"
 disk=128G
+port_forwards=("8123:8123" "8888:80")
 usb_devices=("046d:082d" "046d:085e")
 ```
 
@@ -143,6 +148,9 @@ Starting /media/martin/Quickemu/windows10.conf
  - Display:  SDL
  - smbd:     /home/martin will be exported to the guest via smb://10.0.2.4/qemu
  - ssh:      22221/tcp is connected. Login via 'ssh user@localhost -p 22221'
+ - PORTS:    Port forwards requested:
+              - 8123 => 8123
+              - 8888 => 80
  - USB:      Device pass-through requested:
               - Logitech, Inc. HD Pro Webcam C920
               - Logitech, Inc. Logitech BRIO
@@ -199,6 +207,7 @@ guest_os="macos"
 img="/media/$USER/Quickemu/macos/BaseSystem.img"
 disk_img="/media/$USER/Quickemu/macos/macos.qcow2"
 disk=128G
+port_forwards=("8123:8123" "8888:80")
 usb_devices=("046d:082d" "046d:085e")
 ```
 
@@ -226,6 +235,9 @@ Starting macos.conf
  - Display:  SDL
  - smbd:     /home/martin will be exported to the guest via smb://10.0.2.4/qemu
  - ssh:      22223/tcp is connected. Login via 'ssh user@localhost -p 22223'
+ - PORTS:    Port forwards requested:
+              - 8123 => 8123
+              - 8888 => 80
 ```
 
   * Boot from the BaseSystem

quickemu

@@ -370,6 +370,17 @@ function vm_boot() {
     echo " - ssh:      All ports for exposing ssh have been exhausted."
   fi
 
+  # Have any port forwards been requested?
+  if (( ${#port_forwards[@]} )); then
+    echo " - PORTS:    Port forwards requested:"
+    for FORWARD in "${port_forwards[@]}"; do
+      HOST_PORT=$(echo ${FORWARD} | cut -d':' -f1)
+      GUEST_PORT=$(echo ${FORWARD} | cut -d':' -f2)
+      echo "              - ${HOST_PORT} => ${GUEST_PORT}"
+      NET="${NET},hostfwd=tcp::${HOST_PORT}-:${GUEST_PORT}"
+    done
+  fi
+
   # Find a free port for spice
   local SPICE_PORT=$(get_port 5930 9)
   if [ ! -n "${SPICE_PORT}" ]; then