USB Networking
From Openmoko
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Neo1973 side
By default Neo1973 has usb0 interface working due to Ethernet gadget (g_ether) compiled into kernel.
Desktop side
Manual method
Modprobe usbnet module and configure usb0 interface (as root):
ifconfig usb0 192.168.0.200 netmask 255.255.255.0
If your eth0 interface is also in the same 'range' (e.g. 192.168.0.105) then you can do the following:
1. ping the Neo with
# ping -I usb0 192.168.0.202
2. add a route to your Neo:
# /sbin/route add -host 192.168.0.202/32 dev usb0
3 log in to the Neo
# ssh root@192.168.0.202
SSH Extras
If you get fed up with typing root@192.168.0.202, on your PC edit /etc/hosts and add an entry for 'phone'
192.168.0.202 phone
then edit ~/.ssh/config (or create it) and add
host phone user root
then all you need to do is type
# ssh phone
You might want to use keys to bypass the login prompt too.
SSH Keys
To generate ssh keys for use as a login mechanism type
ssh-keygen -t rsa
when prompted for a password either hit enter for no password (not really a good idea) or enter a password for this key. ssh into the phone and create ~/.ssh
# mkdir ~/.ssh
then from your PC copy the .pub file to the phone.
# scp ~/.ssh/id_rsa.pub phone:.ssh/authorized_keys
You should now be able to ssh directly into the phone.
To disable password logins (after setting up key access) edit /etc/init.d/dropbear and change the following line:
DROPBEAR_EXTRA_ARGS=
to
DROPBEAR_EXTRA_ARGS="-s"
You will need to restart dropbear for this to take effect.
Automatic method
Took from Hotplugging usbnet post by Marcin 'Hrw' Juszkiewicz.
For Debian or similar distros: Edit /etc/network/interfaces file ():
allow-hotplug usb0 iface usb0 inet static address 192.168.0.200 netmask 255.255.255.0 network 192.168.0.0 post-up iptables -A POSTROUTING -t nat -j MASQUERADE -s 192.168.0.0/24 post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -P FORWARD ACCEPT
For Red Hat or similar distros
Edit /etc/sysconfig/network-scripts/net.hotplug:
After this statement:
case $INTERFACE in # interfaces that are registered after being "up" (?)
Add the following:
usb0) ifconfig usb0 192.168.0.200 netmask 255.255.255.0 route add 192.168.0.202 usb0 iptables -I INPUT 1 -s 192.168.0.202 -j ACCEPT iptables -I OUTPUT 1 -s 192.168.0.200 -j ACCEPT exit 0 ;;
For Gentoo or similar distros:
- Edit /etc/conf.d/net by adding:
# Neo1973 config_usb0=( "192.168.0.200 netmask 255.255.255.0" )
- Create a new init script:
# cd /etc/init.d # ln -s net.lo net.usb0
And now when you connect phone (which has 192.168.0.202 IP) it gets connection to world automatically.
Connecting to phone
Then ssh root@192.168.0.202 with empty password to get into phone.
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