> I don't understand. This callback will be called with data you need to
write
> to the network. In case of MTP Level3 you will need to wrap that around
the
> msgb you got.
I means: is the interaction with mtp3 layer implemented (is sending sccp
data by mtp3 implemented by the library?)?
Also, what about the reception of data from mtp3 layer. is that implemented
in the sccp lib.
I am asking these questions because I see the code of mtp3 in the lib but no
significant call is present in the sccp part of the lib.
Thank you for your help.
On Tue, Jun 28, 2016 at 10:05:28AM +0200, Harald Welte wrote:
> [translated from german]
> is it certain that we switch a channel to PDCH only when
> gprs mode != none?
A TS can be GSM_PCHAN_TCH_F_PDCH; those are the only ones for which we
send a PDCH ACT message.
We send a PDCH ACT message
- during init (CHANNEL OML's state changed to enabled -> send PDCH ACT),
- and upon channel release ack when pchan == GSM_PCHAN_TCH_F_PDCH.
So the question is, when we receive a channel release ack, could that be
the PDCH release and we switch PDCH right back on by accident? No, because
we only receive a chan rel ack when the *TCH/F* is being released.
That is because the PDCH release is initiated "internally" from the PDCH
DEACT, and thus this condition in common/rsl.c rsl_tx_rf_rel_ack() catches
on, which existed before dyn PDCH:
if (lchan->rel_act_kind != LCHAN_REL_ACT_RSL) {
LOGP(DRSL, LOGL_NOTICE, "%s not sending REL ACK\n",
gsm_lchan_name(lchan));
return 0;
}
In rsl_rx_rf_chan_rel() the rel_act_kind is set to LCHAN_REL_ACT_RSL, but
not in the rsl_rx_dyn_pdch().
This is analogous to the ip.access way -- the ip.access nanobts replies to
a PDCH DEACT with a PDCH DEACT ACK and doesn't send a separate channel
release ack.
Maybe we could set rel_act_kind to some new LCHAN_REL_ACT_IPAC_DYN_PDCH
for clarity? (But we shouldn't actually send a release ack, to stay
compatible.)
Even though it works as-is, we should indeed add another flag check:
- We do check the flags that no ACT/DEACT is already pending;
- And we do send a PDCH DEACT only if ts->flags & TS_F_PDCH_ACTIVE;
- But we would send a PDCH ACT despite ts->flags & TS_F_PDCH_ACTIVE.
This should never happen, but it would make sense to ensure that.
~Neels
Hi all,
Just wanted to share an issue and a quick workaround I found for it in case
anyone else has the same problem. I believe a cmd2 update is causing
pySim-shell to fail. After installing it on a fresh install of Ubuntu
Server 20.04 and getting the following error when I run "python3
pySim-shell -p0":
>Using PC/SC reader interface
>Autodetected card type: sysmoUSIM-SJS1
>AIDs on card:
> USIM: a0000000871002ffffffff8907090000
>Traceback (most recent call last):
> File "pySim-shell.py", line 512, in <module>
> app = PysimApp(card, rs, opts.script)
> File "pySim-shell.py", line 59, in __init__
> super().__init__(persistent_history_file='~/.pysim_shell_history',
allow_cli_args=False, use_ipython=True, auto_load_commands=False,
command_sets=basic_commands, >startup_script=script)
>TypeError: __init__() got an unexpected keyword argument 'use_ipython'
If you run into this you can fix it by uninstalling cmd2 and reinstalling
cmd2 with "pip3 install cmd2==1.5".
Best,
Bryan
Hi,
My name is Brackley Cassinga Form DRC, we run a community network called
pamoja net where we offer gsm services using osmocom open source software
and OC Base station.
Recently I have tried to install another base station as the same installed
but I could not find any resource guiding through all the steps to take to
run NIB on a base station.
I'm currently running Ubuntu and I will appreciate if you could guide me on
the installation of BSC,hlr,MSC , in order to run a basic gsm network.
Thank you. Regards
--
*Ir Brackley heshima Casinga **Pacifique*
*CEO and Founder of kwanzatechnologie*
KwanzaTechnologies ,GlobalElectronics
+243977265291 | +243977265291 | Pcassinga(a)gmail.com/
brackley(a)ensemblepourladifference.org
www.kwantechnologies.jimdosite.com <http://www.kwantechnologies.com/> |
Skype: Brackley cassinga <https://webapp.wisestamp.com/#>
Av Semliki N 43
Dear Osmocom society,
I am trying to connect a cell phone (lets call it phone #1) through OpenBTS to real GSM network…
To do so i have to introduce a osmocomBB phone which will be connected to my linux machine which runs OpenBTS
So kind of it will be a following structure:
Phone #1 → OpenBTS → OsmocomBB phone → real GSM netwok.
No my goal is to have OpenBTS and OsmocomBB phone to talk to each other… for example authentication parameters which to be exchanged between phone #1 and real network to happen through the chain described above ….
Has this case been or something like this done before ? Or are you aware of any cases when OpenBTS and OsmocomBB phone exchange data?
Thank you very much
--
Mario Lucas
Dear Osmocom community,
It's my pleasure to announce the next OsmoDevCall at
August 27, 2021 at 20:00 CEST
at
https://meeting4.franken.de/b/har-xbc-bsx-wvs
This meeting will have the following schedule:
20:00 meet + greet
20:15 presentation on "osmo-remsim in practice"
21:00 USSE: unstructured supplementary social event [*]
22:00 close of call
Attendance is free of charge and open to anyone with an interest
in Osmocom.
More information about OsmoDevCall, including the schedule
for further upcoming events can be found at
https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall
Looking forward to meeting you on Friday.
Best regards,
Harald
[*] this is how we started to call the "unstructured" part of osmocom
developer conferences in the past, basically where anyone can talk about
anything, no formal schedule or structure.
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
Hey Vadim,
Just now I came across this code,
with an early return in case of BCCH. But right below that, BCCH is still
mentioned in the comment, and there are more IEs being parsed.
So I get the impression the early return may prevent that OSMO_MIN limiting for
BCCH, and that may not be intended?
/* Osmocom specific extension for BCCH carrier power reduction */
if (dch->chan_nr == RSL_CHAN_BCCH) {
int rc = bts_set_c0_pwr_red(trx->bts, new);
if (rc != 0) {
const uint8_t cause = (rc == -ENOTSUP) ?
RSL_ERR_SERV_OPT_UNIMPL : RSL_ERR_IE_CONTENT;
return rsl_tx_error_report(trx, cause, &dch->chan_nr, NULL, msg);
}
return 0;
}
/* BS power reduction is generally not allowed on BCCH/CCCH carrier.
* However, we allow it in the BCCH carrier power reduction operation.
* Constrain BS power value by the maximum reduction for this timeslot. */
if (trx->bts->c0 == trx)
new = OSMO_MIN(new, lchan->ts->c0_power_red_db);
/* 9.3.32 (TLV) BS Power Parameters IE (vendor specific) */
if ((ie = TLVP_GET(&tp, RSL_IE_BS_POWER_PARAM)) != NULL) {
https://git.osmocom.org/osmo-bts/tree/src/common/rsl.c?id=6611e7f3059d26794…
Dear Osmocom community,
It's my pleasure to announce the next OsmoDevCall at
August 13, 2021 at 20:00 CEST
at
https://meeting4.franken.de/b/har-xbc-bsx-wvs
This meeting will have the following schedule:
20:00 meet + greet
20:15 presentation on "GSM-R and its differences to GSM"
21:00 USSE: unstructured supplementary social event [*]
22:00 close of call
Attendance is free of charge and open to anyone with an interest
in Osmocom.
More information about OsmoDevCall, including the schedule
for further upcoming events can be found at
https://osmocom.org/projects/osmo-dev-con/wiki/OsmoDevCall
Looking forward to meeting you on Friday.
Best regards,
Harald
[*] this is how we started to call the "unstructured" part of osmocom
developer conferences in the past, basically where anyone can talk about
anything, no formal schedule or structure.
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
Hi all,
as I currently have to clear my basement for water-damage related renovation,
I'm going to use the opportunity to get rid of some of the things I'm unlikely
going to use ever again
https://osmocom.org/projects/miscellaneous-projects/wiki/LaForge_surplus_20…
If anyone is interested: I'm not looking for any money in return. I just want
to find a new home for it rather than actually disposing of it at some recycling
facility.
Let me know ASAP if you're interested in any of it, thanks.
Happy hacking,
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)
