Posts made by Valentin Haenel

https://wiki.onion.io/Tutorials/Using-Omega-As-Wifi-Range-Extender

I'd like to enquire about open-sourcing the firmware builder. This would be nice to build much smaller firmwares, e.g. ones w/o nodejs and w/o the console and leave more space for user programs. Also, I could bake my ssh-key an other stuff right easing the re-flashing and setup process.

For example this little project I cobbled together with a spare powerbank I had lying around.

https://twitter.com/esc___/status/703673375344959488

The Omega is equipped with an Atheros AR9331 WiSoC (Wireless System-on-a-Chip). It is a single chip but correctly said by @Andrey-Zolotarev it does have two wifi interfaces. These can in principle be configured to anything.

Has anyone made the 'wds' mode for openwrt work with the omega yet?

https://wiki.openwrt.org/doc/recipes/atheroswds

I tried today but couldn't make it work. Would be nice to have that so as to make a better range extender.

On my Raspberry Pi I see:

[1567048.328727] usb 1-1.2: new low-speed USB device number 4 using dwc_otg
[1567048.442001] usb 1-1.2: New USB device found, idVendor=1781, idProduct=0c9f
[1567048.442034] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[1567048.442049] usb 1-1.2: Product: Trinket
[1567048.442062] usb 1-1.2: Manufacturer: Adafruit

Which seems to be indicating a different driver, dwc_otg??

I guess I should also mention, that I am expecting the Trinket red LED to phase for 10 seconds indicating that a program can be uploaded. This doesn't happen when connected to Omgea.

I have an adafruit trinket and decided to try to connect it to the omega via USB. I was hoping to upload new code to the trinket from the omega using avrdude which is installed already on the Omega, No luck unfortunately, I see the following in dmesg:

[  129.120000] usb usb1-port1: connect-debounce failed

If I connect it to my Laptop instead I see:

[219140.790785] usb 3-2: new low-speed USB device number 5 using xhci_hcd
[219140.984129] usb 3-2: New USB device found, idVendor=1781, idProduct=0c9f
[219140.984138] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[219140.984143] usb 3-2: Product: Trinket
[219140.984147] usb 3-2: Manufacturer: Adafruit

I tried uploading something with avrdude anyway, but it was unable to find the board.

Anyone know more?

I installed python-light and that was installable. But beware you will need 50MB or more to install a full-stack:

https://wiki.openwrt.org/doc/software/python

You can also attempt to use USB-Storage as root-fs:

http://gdgbasel.com/2015/12/06/installing-python-on-onion-omega/

That should give you more than enough space to install anything you want.

It ran out of space, yet the only other thing I installed was git..

I was unable to install python, see the following trace:

root@onionomega:/# opkg install python
Installing python (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python_2.7.9-5_ar71xx.ipk.
Installing python-light (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-light_2.7.9-5_ar71xx.ipk.
Installing python-base (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-base_2.7.9-5_ar71xx.ipk.
Installing libffi (3.0.13-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libffi_3.0.13-1_ar71xx.ipk.
Installing libbz2 (1.0.6-2) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/base/libbz2_1.0.6-2_ar71xx.ipk.
Installing python-codecs (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-codecs_2.7.9-5_ar71xx.ipk.
Installing python-compiler (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-compiler_2.7.9-5_ar71xx.ipk.
Installing python-ctypes (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-ctypes_2.7.9-5_ar71xx.ipk.
Installing python-db (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-db_2.7.9-5_ar71xx.ipk.
Installing libdb47 (4.7.25.4.NC-4.1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libdb47_4.7.25.4.NC-4.1_ar71xx.ipk.
Installing libxml2 (2.9.2-3) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libxml2_2.9.2-3_ar71xx.ipk.
Installing python-decimal (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-decimal_2.7.9-5_ar71xx.ipk.
Installing python-distutils (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-distutils_2.7.9-5_ar71xx.ipk.
Installing python-email (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-email_2.7.9-5_ar71xx.ipk.
Installing python-gdbm (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-gdbm_2.7.9-5_ar71xx.ipk.
Installing libgdbm (1.11-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libgdbm_1.11-1_ar71xx.ipk.
Installing python-logging (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-logging_2.7.9-5_ar71xx.ipk.
Installing python-multiprocessing (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-multiprocessing_2.7.9-5_ar71xx.ipk.
Installing python-ncurses (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-ncurses_2.7.9-5_ar71xx.ipk.
Installing python-openssl (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-openssl_2.7.9-5_ar71xx.ipk.
Installing python-pydoc (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-pydoc_2.7.9-5_ar71xx.ipk.
Installing python-sqlite3 (2.7.9-5) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/python-sqlite3_2.7.9-5_ar71xx.ipk.
Installing libsqlite3 (3081101-1) to root...
Downloading http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages/libsqlite3_3081101-1_ar71xx.ipk.
Configuring python-base.
Configuring libffi.
Configuring libbz2.
Configuring python-light.
Configuring python-codecs.
Configuring libxml2.
Configuring libdb47.
Configuring python-db.
Configuring python-decimal.
Configuring python-distutils.
Configuring python-pydoc.
Configuring python-email.
Configuring python-ctypes.
Configuring libgdbm.
Configuring python-gdbm.
Configuring python-ncurses.
Configuring python-sqlite3.
Configuring python-compiler.
Configuring python-openssl.
Configuring python-multiprocessing.
Configuring python-logging.
Collected errors:
 * pkg_write_filelist: Failed to open //usr/lib/opkg/info/libsqlite3.list: No space left on device.
 * opkg_install_pkg: Failed to extract data files for libsqlite3. Package debris may remain!
 * opkg_install_cmd: Cannot install package python.

Please help!

I have been thinking some more about this and maybe we should attempt to disable the DHCP-Server dnsmasq and maybe remove the firewall zones?

Maybe that should be made part of the setup instructions, at least that it is optional? Almost all the unboxing videos have stated that this is an issue. cc @Lazar-Demin

After putting all the config under version control, I can confirm, that wifisetup -killap will simply remove the wifi-iface as shown by the following difff:

diff --git a/wireless b/wireless
index f5bfbb3..b24bc29 100644
--- a/wireless
+++ b/wireless
@@ -9,13 +9,6 @@ config wifi-device 'radio0'
 	option txpower '30'
 	option country 'US'
 
-config wifi-iface
-	option device 'radio0'
-	option network 'wlan'
-	option mode 'ap'
-	option encryption 'none'
-	option ssid 'Omega-XXXX'
-
 config wifi-iface
 	option device 'radio0'
 	option mode 'sta'

There is also an option for the wifisetup script to disable (kill) the Access Point (AP):

$ wifisetup -killap

Though I am not yet sure what exactly this does but it might do the trick.

I can confirm that commenting out the section in /etc/config/wireless like so:

#config wifi-iface
#       option device 'radio0'
#       option network 'wlan'
#       option mode 'ap'
#       option encryption 'none'
#       option ssid 'Omega-XXXX'

Where XXXX is your name of the SSID.

If I am not mistaken you then need to restart the wirless by using the wifi command like so:

root@onion:~# wifi

I'd like to see a tutorial about disabling the secondary SSID. I.e. the one that you can use to log in initially. This would be nice, because it is still on, after connecting my home network, and this could be a way to hijack an omega for a tech-savy attacker.

I know that it is probably enough for now to simply disable the Wireless interface in /etc/config/wireless but I'd like to also remove the corresponding sections in /etc/config/network /etc/config/dhcp and /etc/config/firewall. However I don't really know enough about OpenWRT yet to confidently modify those files. Would anyone like to collaborate with me on a tutorial about this? Or perhaps someone has already solved this and there is a solution, maybe even a script one could run?