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Configuring gbox – a work in progress
Author: Anakin aka Psycho
Date: 7th august 2005
Version: 1.1
No rights whatsoever can be claimed from this document. It is purely
meant for people to be able to read the logging and edit configuration-files for gbox.
Errors and mal-functioning machines cannot be blamed upon this
document. It’s a proven concept.
Everything I have documented will be commented here. As I find out something new, it will be
added. Text Marked Anyone? I don't know the answer to. Please fill in the blanks!
=============================================================
Share-configuration
The template is:
Server
M: { <OWN IP> { <KEY_A> }}
D: { <OTHER_IP> { port_from port_to { <KEY_B> { <X> <Y> }}}}
Client
M: { <OWN IP> { <KEY_B> }}
D: { <OTHER_IP> { port_from port_to { <KEY_A> { <X> <Y> }}}}
· <OWN_IP> => IP-address of the box. If this is going over the internet, use the WAN-IPaddress!!
· <KEY_*> => Encryption-key of the box
· <OTHER_IP> => The IP- or DNS-address of the person you want to connect to.
· <PORT_FROM> => Port you want to use on the box. If this is going over the internet, this
needs to be forwarded if behind a router! UDP!!
· <PORT_TO> => Port that the other sided uses on the box.
· <X> => Share-level for the LOCAL cards.
· <Y> => Share-level for cards you receive from others.
Assuming the server has the IP-address 192.168.1.10 and the client 192.168.1.11:
Find the file /var/keys/cwshare.cfg and alter the following lines accordingly:
Server
M: { 192.168.1.10 { 1234ABCD }}
D: { 192.168.1.11 { 8019 8020 { DCBA4321 { 5 5 }}}} # Client
Client
M: { 192.168.1.11 { DCBA4321 }}
D: { 192.168.1.10 { 8020 8019 { 1234ABCD { 5 5 }}}} # Server
This will off-course work over the internet! Use the WAN-IP-address or Just use a DynDNS or noip
address... Looks cooler..
=============================================================
Analyzing logging
So, you've got things sorted, and you want to take a look at what's what. Well, actually, there are
6 files to be viewed, of which 4 are permanent:
· /var/tmp/share.info => shows the cards you receive from others
To make things easy, I took myself as an example. I did this on my dreambox:
/tmp > cat share.info
CardID 0 at 192.168.2.102 Card 0100006A Sl:3 Lev:0 dist:1 id:87F4
CardID 1 at 192.168.2.102 Card 0100006B Sl:3 Lev:0 dist:1 id:87F4
CardID 2 at 192.168.2.102 Card 0100006C Sl:3 Lev:0 dist:1 id:87F4
CardID 3 at 192.168.2.102 Card 0100006D Sl:3 Lev:0 dist:1 id:87F4
CardID 4 at 192.168.2.102 Card 06260000 Sl:11 Lev:0 dist:1 id:87F4
OK, to break things down I'll use the first line:
o CardID 0 => ranking-number of the card the way they are sorted... Alphabetically
on Card-number.
o at 192.168.2.102 => IP-address of where they are coming from
o Card 0100006A => Card-number. This is how the card is identified
o Sl:3 => Displays the slot the card is in at the provider, when run on a Linux-PC
up to 18 has been seen.
o Lev:0 => Amount of hops I'm allowed to reshare. Zero.
o dist:1 => Amount of hops the card is at. In this case: 1.
o id:87F4 => Identification-number for gbox that is providing the card.
· /var/tmp/share.log => Same as share.stat, only that this displays the real-time data.
· /var/tmp/share.onl => shows who's on-line
Again, I'll use myself as an example:
/tmp > cat share.onl
1 192.168.2.102 192.168.002.102 87F4 2.01
o 1 => 1 is on-line, 0 is offline.
o 192.168.2.102 => The entry you use in cwshare.cfg.
o 192.168.002.102 => The way gbox translated cwshare.cfg to an actual IPaddress.
See the 002 ?
o 87F4 => Identification-number for gbox on the other end.
o 2.01 => Version-number of gbox on the other end.
· /var/tmp/share.stat => Same as share.log, only that this displays the stats over the
entire running-time, and of the last 5 minutes.
o Hello_I/O=> Number of hello's or "handshakes" between 2 peers.
o ECM_I/O/F => ECM received (In), sent (Out) and Forwarded by gbox.
o CW_I/O/F => Control Words received (In), sent (Out) and Forwarded by gbox.
Control Word is the reply to an ECM request.
o GSMS_I/O => Messages received (In) and sent (Out) and by gbox.
o loc_up and loc_down => LOCAL Network traffic. (Probably filters defined by the
internet standard, 10.x.x.x / 127.x.x.x / 192.268.x.x / 169.254.x.x)
o inet_up and inet_down => Network tracfic in and out of internet. (Probably
every other IP-addres different from what I mentioned 1 point before?)
· atack.txt => Shows a misconfiguration or someone that is trying to connect to you
without being authorized to do so.
An example. On my server I mutilated the key for the client (that means the line starting
with D
. On the client the atack.txt is created and filled with a number of messages:o ATACK ALERT: from IP 192.168.002.102 port 3101 PASSWORD IS WRONG
EDB2097E (32) Sun Aug 7 16:32:09 2005
This means that someone it trying to connect using a wrong password.
I then remove the server completely out of the config:
o INTRUDER ALERT: IP 192.168.002.102 Port 3101 (PASS 2346A4B2 ID 87F4
unknown) Sun Aug 7 16:40:50 2005
You see the difference?
o goneOFFLINE: BAD IP|PORT (DynDNS Peer1) Actual IP Peer1/Localport (IPaddress
from local DNS Resolve/Localport) Tue Aug 23 12:55:02 2005
This message says that the actual IP-address off the Peer doesn't match with
what gbox thinks it should be.
· Debug.txt => Can take all message generated by gbox. Depends on what you put after
Z: in the file gbox_cfg
o ->HelloL to => Initial request to every "D:-line" in cwshare.cfg
o ->Hello1 to => Second request if first not answered to (quickly enough)
o ->Hello2 to => Third request if first not answered to (quickly enough)
o ->HelloR to => I think this means Reconnect to peer if timed out? Anyone?
o ->HelloW to => Don't know. Anyone?
o ->HelloS1 to => Don't know. Anyone?
o ->Here? to => Repetitive request every x seconds to see if peer has come online.
o <-Hello from => Reply to Hello L/1/2/R from Peer, Or first request after Peer
reboot? Anyone?
o <=Hello from => Don't know. Reply is received in the same millisecond as "<-
Hello from". Anyone?
o ->Hello to => Reply to "<- Hello from".
o ||CW (->1) blocked from Peer1 to Peer2/GboxID Peer2 => Don't know
actually. Anyone?
o <>ECM (1->1) from Peer1 forwarded to Peer2 (GboxID Peer2 )
<>CW (->1) from Peer2 forwarded to Peer1 => Here you see a request being
relayed to someone else, and the answer to that request. In (1->1), the first "1"
stands for the slot the card is in at the supplier, "->1" stands for the amount of
hops the message has to travel to that supplier. In (->1) "1" stands for for the slot
the card is in at the supplier.
o <-ECM (1<-) received from Peer1
->CW (->1) send to Peer1 (527 ms) => This is a request from Peer1 to a local
card, the reply and the time it took to read the card and supply the key.
o dbox2 Peer1 is not responding 6 times => Well, that says enough I think?
o goneOFFLINE: Removing Peer1 from list, seems offline => Sets Peer1 from
1 to 0 in share.onl, after not responding 6 times.
· online.log => Shows the coming and going of peers. Creation of this file depends on the
line N: in cwshare.cfg
o comeONLINE : Welcome PEER1 IP xxx.xxx.xxx.xxx/<Port PEER1> Sun Sep
4 16:22:45 2005 => PEER1 comes online
o goneOFFLINE: Removing PEER1 from list, seems offline Sun Sep 4
17:45:39 2005 => PEER1 doesn't respond anymore
o IP update : PEER1 was xxx.xxx.xxx.xxx now xxx.xxx.xxx.xxx Sun Sep 4
17:45:53 2005 => PEER1 has a new IP-address
o comeONLINE : Welcome PEER1 IP xxx.xxx.xxx.xxx/<Port PEER1> Sun Sep
4 18:01:05 2005 => PEER1 is back on-line again!
