I have some questions:
1) When I start bsc_hack bsc_init.c first establishes OML link and
initializes the bts then it establishes RSL link and bts starts
broadcasting. However, it takes so much time to start the bts. Instead of
this I want to do the following: it establishes OML link at the beginning
and only once, then when i want to start broadcasting it establishes just
the RSL link and bts will start faster since i don't have to wait for OML
link. What should be done for this?
2) If i send one or two word messages from telnet interface it is okay. But
if i send a longer message the phone could't receive the end of the message
correctly(last words may be incomplete). Did any one encounter with this
problem? What is wrong with me?
3) Could I send SMS in which extension of the sender is text not integer.
For example, i want to send an information SMS that this is a test network.
For this purpose i want to send an SMS from 'OpenBSC'. I set the extension
of the first subscriber in database as text and tried to send the SMS but
SMS wasn't delivered. What should i do?
4) Can i add SMS externally to SMS table of database?
Thanks.
Jason
Hello
Our goal was to send status sms via the vty interface. But all of our
sms were cropped. In contrast sms from one MS to another MS are
displayed correctly (despite the fact, that the text at the database
contains several '@' at the end / the user_data contains several
zero-octets). Therefore i have inspect the code and found several bugs.
The main problem is that the "user_data_len" is not correctly used. As
per GSM 03.40, 9.2.3.16 TP‑User‑Data‑Length (TP‑UDL):
"If the TP‑User‑Data is coded using the GSM 7 bit default alphabet, the
TP‑User‑Data‑Length field gives an integer representation of the number
of septets within the TP‑User‑Data field to follow."
Currently the "user_data_len" contains the number of octets (returned
from gsm_7bit_encode(...) at gsm_utils.c (libosmocore)).
The big problem here is that this information is not unique, e.g.:
1.) 46 non-extension characters + 1 extension character => (46 * 7 bit +
(1 * (2 * 7 bit))) / 8 bit = 42 octets
2.) 47 non-extension characters => (47 * 7 bit) / 8 bit = 41,125 = 42 octets
3.) 48 non-extension characters => (48 * 7 bit) / 8 bit = 42 octects
But the MS has to know the correct "user_data_len" to decode the correct
number of characters.
For this reason i updated the gsm_7bit_encode() function to return the
correct number of septets. However sometimes it is needed to know the
correct number of octets (e.g. at gsm_04_11.c: gsm340_gen_tpdu(...)) =>
i added a function to gsm_utils.c named:
uint8_t get_octet_len(const uint8_t sept_len)
I have also fixed the problem, that the sms are wrongly stored /
displayed on the database. But the solution on the function
*sms_from_result(...) (at db.c) is not really "beautiful". This is
because there exists no "user_data_len" field at the database. To store
the right value for "user_data_len" (which is further needed) i have to
get the length from the "text" field. Unfortunately this is not enough.
If the text contains extension characters like {[]} etc. then the
"user_data_len" has to be bigger because these characters needs two
septets. Therefore i use a switch statement so search for these
characters. A better solution for that is to store the right
"user_data_len" to the database (on the encoding / decoding procedure).
But i don't know if this is a suitable solution for all of you (because
you have to change your database structure etc.).
Best Regards
Dennis Wehrle
Hi all,
so far we do not have any statement about the licensing of the content on
our wiki. This means the default copyright rules apply: All the content is
copyrighted, and nobody has any rgiht to reproduce it at all.
I would like to propose an official license for the content in the wiki:
Create Commons CC-BY-SA. The alternative would be to go for CC-BY-NC-SA,
disallowing commercial use of the content.
I'm not certain if NC is really what we want. After all, even somebody
using OpenBSC in a commercial environment should be able to make copies
of the reference documentation we have available - as long as he will
releas the result again (which the SA part already covers).
If the major contributors to the wiki would agree to a license, I would
update the wiki accordingly.
Thanks,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
On 05/30/2011 06:27 AM, Seungju Kim wrote:
> Hello, I am experiencing some crash with osmo-sgsn.
> This is the log : http://pastebin.com/XP8RcaaNI didnt make any modification except removing imsi roaming check.
> Every time when a phone tries to connect this happens. What might be wrong?
Hi,
please make yourself gdb and git and create a patch. The struct msgb has
detected a mis-use and forced a crash. What is going wrong is in the log, you
will need to identify where this msgb got allocated (or change the panic
message to print the name of the msgb) and see why it is using the amount of
headroom it wants to use.
happy hacking
holger
Hello,
this patchset adds an SNMP-like control interface to OpenBSC. Currently you can
set and get variables. This interface is enabled in osmo-bsc, osmo-bsc_nat, and
in osmo-nitb. It currently supports querying the counters and rate counters,
setting and querying the rf_locked status, and geographical location.
In osmo-bsc_nat forwarding is implemented to set/query stuff in the actual
osmo-bsc.
The patches are located in the daniel/controlif branch. Please merge them if you
feel they are ready or point me to the problems.
Regards
Daniel Willmann (10):
Add documentation for the control interface protocol
Add example to communicate through the control interface
Add libctrl, an SNMP-like control interface
libctrl: Add macros to help define commands
libctrl: Add commands to query counters and rate_cntr
bsc_hack: Use libctrl, listen on port 4249
osmo_bsc: Use libctrl, handle ctrl cmds on port 4249 or from the nat
osmo_bsc: Add some libctrl commands
libctrl: Add ctrl_cmd_cpy() to copy a command
nat: Use libctrl and add command forwarding to osmo-bsc
openbsc/configure.in | 1 +
openbsc/contrib/bsc_control.py | 100 +++++
openbsc/doc/control-interface.txt | 21 +
openbsc/include/openbsc/bsc_nat.h | 22 +
openbsc/include/openbsc/control_cmd.h | 151 +++++++
openbsc/src/Makefile.am | 2 +-
openbsc/src/libctrl/Makefile.am | 7 +
openbsc/src/libctrl/control_cmd.c | 479 +++++++++++++++++++++++
openbsc/src/libctrl/control_if.c | 627 ++++++++++++++++++++++++++++++
openbsc/src/osmo-bsc/Makefile.am | 1 +
openbsc/src/osmo-bsc/osmo_bsc_main.c | 167 ++++++++
openbsc/src/osmo-bsc/osmo_bsc_msc.c | 34 ++
openbsc/src/osmo-bsc_nat/Makefile.am | 1 +
openbsc/src/osmo-bsc_nat/bsc_nat.c | 279 +++++++++++++
openbsc/src/osmo-bsc_nat/bsc_nat_utils.c | 1 +
openbsc/src/osmo-nitb/Makefile.am | 3 +-
openbsc/src/osmo-nitb/bsc_hack.c | 3 +
17 files changed, 1897 insertions(+), 2 deletions(-)
create mode 100755 openbsc/contrib/bsc_control.py
create mode 100644 openbsc/doc/control-interface.txt
create mode 100644 openbsc/include/openbsc/control_cmd.h
create mode 100644 openbsc/src/libctrl/Makefile.am
create mode 100644 openbsc/src/libctrl/control_cmd.c
create mode 100644 openbsc/src/libctrl/control_if.c
--
1.7.5.rc3
Dear OpenBSC lovers and developers!
question, I turn towards you again:
if the operation OpenBSC nanoBTS and A-bis Over IP basis, you think any of
the femtocell (eg Vodafone's preferred cells) are able to operate in the
same way?
I think that the same standard as well do they work?
What is your opinion?
For more information:
http://wirelessfederation.com/news/74803-vodafone-hungary-launches-3ghsdpa-…
Thank You, and have nice day!
bthomyka from Hungary
> Hello, I am experiencing some crash with osmo-sgsn.
> This is the log : http://pastebin.com/XP8RcaaN
> I didnt make any modification except removing imsi roaming check.
> Every time when a phone tries to connect this happens. What might be wrong?
Build with debug symbols so that the backtrace makes sense ...
Cheers,
Sylvain
Hello, I am trying to make a GPRS/EDGE capable network using OpenBSC. These are my config files and results from console
http://pastebin.com/rCW6cCeU
But I still don't see any data indicator when I connect my iPhone to the network. What do you think is wrong?
Sent from my iPhone
How does the phone know if it is roaming or not? When my phone camps to OpenBTS network it says it is roaming but in OpenBSC it doesn't.
I wonder what makes such difference
Sent from my iPhone
Hi guys,
someone has a NanoBTS for purchase or could send me in private, some european re-sellers?!
Possibly, a version that fully supports A5/1-2 and openGGSN.
Thank you for attention
Cheers
Luca
