View source for RAVpower BusyBox

This page refers to the RAVpower BusyBox - based device that provides an external battery for charging cellular phones or whatever
whilst simultaneously providing file sharing services and more. But -- the unadvertised feature is that it contains an accessible
BusyBox implementation with both root and user level accounts and much more. To be described here!

The RAVpower "FileHub" as it's called has an Android app in Google's appstore. The app is credited to HooToo - which makes
similar products. However, the hardware and software in the RAVpower unit appears to be quite different from the HooToo OpenWRT
based implementation. I'll be writing separately about the HooToo hardware and software separately.

I purchased the RAV Power FileHub for the basic services it provides out-of-the-box. The device can repeat a WiFi signal, and
extend coverage into a shadowed area. It can be used for basic file sharing. It's easy to connect to from many platforms without
any additional client-side software. It's battery operated so it's infrastructure independent, and solid even if the primary
power source is solar. However, the ability to "get inside" the
device and leverage full Unix access is a strong plus, and a hacker's delight. 

== Device Description ==

http://www.amazon.com/gp/product/B00ICEWB58/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00ICEWB58&linkCode=as2&tag=infoweb02-20&linkId=EGAGLCVIQB3FDB6Y"

== Documentation and Link ==
Instruction for  RP-WD02 Filehub For All versions.pdf

http://www.ravpower.com/media/downloads/Instruction%20for%20%20RP-WD02%20Filehub%20For%20All%20versions.pdf

Very weirdly Chinesey  (need more detail here)
10MB PDF

== Chat Log and System Output ==



Instruction for  RP-WD02 Filehub For All versions.pdf

http://www.ravpower.com/media/downloads/Instruction%20for%20%20RP-WD02%20Filehub%20For%20All%20versions.pdf

Very weirdly Chinesey  (need more detail here)
10MB PDF

<pre>
BusyBox v1.12.1 (2012-04-26 15:28:18 PHT) built-in shell (ash)
Enter 'help' for a list of built-in commands.
$ help
Built-in commands:
-------------------
       . : [ [[ alias bg break cd chdir command continue echo eval exec
       exit export false fg getopts hash help jobs kill let local printf
       pwd read readonly return set shift source test times trap true
       type ulimit umask unalias unset wait
</pre>
BusyBox oddities, but lots of RAM disks. See the manual and correlate...
<pre>
$ df
Filesystem           1k-blocks      Used Available Use% Mounted on
rootfs                    5056      5056         0 100% /
/dev/root                 5056      5056         0 100% /
$ mount
rootfs on / type rootfs (rw)
/dev/root on / type squashfs (ro)
ramfs on /var type ramfs (rw)
ramfs on /www/firmware type ramfs (rw)
ramfs on /boot/tmp type ramfs (rw)
ramfs on /usr/local/samba/var type ramfs (rw)
ramfs on /data type ramfs (rw)
ramfs on /opt type ramfs (rw)
ramfs on /dev type ramfs (rw)
ramfs on /tmp type ramfs (rw)
/proc on /proc type proc (rw)
/sys on /sys type sysfs (rw)
none on /proc/bus/usb type usbfs (rw)
ramfs on /dev type ramfs (rw)
devpts on /dev/pts type devpts (rw)
ramfs on /dev/shm type ramfs (rw)
ramfs on /dev/mapper type ramfs (rw)
ramfs on /etc type ramfs (rw)

[extracts from 'top']
Mem: 21956K used, 6044K free, 0K shrd, 1560K buff, 8168K cached
CPU:   0% usr   0% sys   0% nice  99% idle   0% io   0% irq   0% softirq
Load average: 0.00 0.00 0.02
2552 ?        SN     0:00 /usr/sbin/fileserv -f /etc/fileserv/lighttpd.conf -m /usr/lib/fileserv
2609 ?        Ss     0:00 telnetd
4059 ?        S<     0:00 /usr/sbin/upnpd

$ busybox --help
BusyBox v1.12.1 (2012-04-26 15:28:18 PHT) multi-call binary
Copyright (C) 1998-2008 Erik Andersen, Rob Landley, Denys Vlasenko
and others. Licensed under GPLv2.
See source distribution for full notice.Usage: busybox [function] [arguments]...
  or: function [arguments]...        BusyBox is a multi-call binary that combines many common Unix
       utilities into a single executable.  Most people will create a
       link to busybox for each function they wish to use and BusyBox
       will act like whatever it was invoked as!Currently defined functions:
       [, [[, ash, awk, basename, brctl, cat, chgrp, chmod, chown, chroot, cksum,
       clear, cmp, comm, cp, cut, date, dd, df, dhcprelay, dirname, dmesg, du,
       dumpleases, echo, ed, egrep, env, expr, fgrep, find, free, getty, grep,
       gunzip, gzip, halt, head, hostid, hostname, hwclock, id, ifconfig, insmod,
       ip, kill, killall, klogd, ln, logger, login, logread, ls, lsmod, md5sum,
       mkdir, mkfifo, mknod, mkswap, more, mount, mv, netstat, nice, passwd,
       pgrep, pidof, ping, ping6, poweroff, printenv, printf, ps, pwd, readlink,
       realpath, reboot, renice, reset, rm, rmdir, rmmod, route, sed, sh, sleep,
       stat, stty, sum, swapoff, swapon, sync, sysctl, syslogd, tail, tar, telnetd,
       test, time, top, touch, udhcpc, udhcpd, umount, uname, uniq, uptime,
       usleep, vconfig, vi, wc, wget, who, xargs, zcat

$ ls /bin
ash           echo          ipaddr        mii_mgr       pidof         sh
ated          ed            iplink        mkdir         ping          sleep
busybox       egrep         iproute       mknod         ping6         stat
cat           fgrep         iprule        more          pppd          stty
chat          gpio          iptables      mount         pppoecd       switch
chgrp         grep          iptunnel      mtd_write     printenv      sync
chmod         gunzip        iwconfig      mv            ps            tar
chown         gzip          iwpriv        netstat       pwd           touch
cp            hostname      kill          nice          ralink_init   umount
date          igmpproxy     lld2d         ntpclient     reg           uname
dd            igmpproxy.sh  ln            nvram_daemon  rm            usleep
df            inadyn        login         nvram_get     rmdir         vi
dmesg         ip            ls            nvram_set     sed           zcat

$ ls /usr/bin
[           cmp         env         id          passwd      reset       uniq
[[          comm        expr        killall     pgrep       sum         uptime
awk         cut         find        killall5    printf      tail        wc
basename    dirname     free        logger      readlink    test        wget
cksum       du          head        md5sum      realpath    time        who
clear       dumpleases  hostid      mkfifo      renice      top         xargs

$ ls /usr/sbin
au                   get_wlan_mac         owndns               stopcp
brctl                inadyn               ownhttp              telnetd
chroot               iodate               partprobe            tst_nameserver
default_ssid_set     ioos                 passwdzw             udevadm
dhcprelay            led_control          pioctl               udevd
disk_clear_gpt_info  locknet              portmap              udevtrigger
diskck               minidlna             pppoe_client         udhcpd
etc_tools            mkntfs               rtconfig.bin         umount2
ez-ipupdate          mkusbevent           sendfile             update_smb
filecp               nasclient            set_kernel_zone      updatedd
fileserv             newdd                set_remote_ap        upnpd
get_broadcast_addr   nmbd                 sg_ioctl_disk        usbdongle
get_mtd_param        ntp                  smbd                 vstddns
get_mtd_sn           opmode_set           smbpasswd

$ ls /
bin     data    etc     home    media   opt     sbin    tmp     var
boot    dev     etc_ro  lib     mnt     proc    sys     usr     www

</pre>

It appears as though the device is made by the same people that make the "HooToo" products (the app for the RAV is made by HooToo)...
Therefore, if you don't want the built-in battery, the following is available for $18 and might
be the same or similar: http://www.amazon.com/gp/product/B00HZWOQZ6/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00HZWOQZ6&linkCode=as2&tag=infoweb02-20&linkId=AF6IH4KL6SR3BKEN
Amazon.com: HooToo TripMate Nano Wireless N Pocket Travel Router: Computers & Accessories

If you want to hack, here is a [support] reason to get the device above instead: https://forum.openwrt.org/viewtopic.php?id=53014
... I've now determined that these products are different, run different software. The HooToo runs OpenWRT as root. The RAV
does not. It runs as admin (uid=15, gid=0), not as root.

Files and install instructions for HooToo HT-TM02 (RT5350) (Page 1) — General Discussion — OpenWrt — Wireless Freedom

As for the RAV device, for documentation purposes until I get all this into OneNote, the root password is: 20080826  -- so it's awesome that the RAV has support for the two accounts. I was
able to change both admin and root passwords!!!

Unlike OpenWRT, this puppy has a 'passwd' command. But no su
... you have to log out from admin and log back in as root to change. Interestingly, the RAV also has the 'chroot' command as well as other interesting *nix oddities.

This applies, to at least some extent: http://hckohwnotes.blogspot.com/2014/05/debian-on-intenso-memory-2-move-intenso.html

More to come as I play with this useful little device.