This was a stupid decision. We will have to assign the
network at some other place. The problem will be a problem
when we have two gsm_networks in one process and the same
subscriber is traveling in both networks.
During bootstrap of BS11, the e1links are initialized. This must also be
done when BS11 is already bootstrapped (when restarting OpenBSC). It is
required to correctly multiplex the audio traffic between channels.
Without it, all time slots refer to card 0, slot 0, subslot 0, which
causes crashes when handling TRAU frames..
* add nm_state objects for RACK and CCLK
* add obj_class human-readable printing for all vendor obj_classes
* add human-readable printing of administrative state
* add enum for cell_alloc numbers
select function ob libbsc. A "polling" flag is used to enable polling.
In this case select() will not sleep until file descriptor events occurr
or nearest timer expires. Also a return value will indicate if there was
an event that has been handled. If there was an event, the application
decides to poll again and don't wait.
In case for bsc_hack, the polling flag is not set. select will sleep as
usual.
(Andreas Eversberg)
The problem in the old logic was that we started talking to a given object
(e.g. radio carrier) one we received an administrative state change report. It
turns out we have to wait for the software activation report instead - and
everything suddenly works.
* keep track of site_id/bts_id in struct gsm_bts
* dynamically match incoming OML/RSL over TCP connections by BTS Unit ID
* introduce new debug category DINP (separate from DMI for hexdumps)
* remove ia_config() as it is no longer needed
*
* ensure that signalling links / E1 line information is correctly printed
* when bootstrapping RSL or OML, tell us for which BTS it is being doen
* separate bootstrap_bts() out from bootstrap_network()
* statically configure two ip.access BTS, one with unit id's 1800/0/0 and 1801/0/0
Patch by Andreas Eversberg to automatically release
layer2 on exit of the application. Made the naming of
the variables consistent (only release_l2 and not both
release_l2 and l2_release).
Let us establish the rule that there is one DB
per network. This will allow to assign a BTS of
the network to a subscriber that is loaded from
the db across restarts.
Kill mi_set_pcap_fd from the header, introduce e1_set_pcap_fd
and call it from bsc_hack.c. Hook into abis_rsl_sendmsg and
_abis_nm_sendmsg for sending and e1inp_rx_ts for reading. It compiles
and should not cause a regression.
* remove old code
* ensure that the default BTS type really is BS-11
* document the '-t' commandline argument in the --help message
With this commit, I can get the nanoBTS 900 working with OML and RSL, register
to the network from phones. Paging is not tested yet, and voice traffic handling
is completely missing..
Set the threshold to 0% for the load indication. The paging buffer
space will be used by the paging notifications and we will ignore
the racch usage notification for now.
channel to another one (simple voice call switching)
* add a way more generic E1 input layer, abstracting out the misdn
low-level interface. This also adds infrastructure for multiple TRX
in one BTS, as well as multiple BTS on one E1 link
* add a E1 subchannel multiplexer for sending multiple 16kbit sub-channels
one one 64kBps E1 channel
* add TRAU IDLE frame generation
* terminate bsc_hack in case there is a E1 / mISDN init error
* introduce 'e1_config.c' file with static configuration of our
E1 setup (which TRX/BTS is configured for which TEI/SAPI/E1). This should
later become a config file rather than a compiled C file.
WARNING: all this compiles but is not tested yet. Expect fix-up committs over
the next hours or so
There is a 1:1 relationship between gsm_bts and the paging
operation. Move the paging state into the gsm_bts which is
simplfying the code a lot. This was hinted by LaF0rge.
(I'm not happy with the names of the structs)
- Initialize Control Channel Description of SI3
- Patch the table
- Setting ATT now is easy
- Paging can now extract all required information... to determine
the right paging group.
Wrote and test code to add and remove paging requests... This
will be using the fact that the linux list is building a circle
on each tick we can send one/x paging requests and continue round
robin...
Add the -f option to use a different channel. This is done
by patching the various tables before the OML and RSL is brought
up. It looks like it is working...
Patch by Harald, moving of the patch_tables invocation by zecke
Remove the callbacks from gsm_network for now. A set of different
callbacks will be back. E.g. when the paging is completed, when the
Q.931 like call handling is there...
Remove var's or move them into #if 0, remove unused stuff that looks
like we do not need it anytime soon or #if 0 them, move stuff around.
This might turn into a complete wire protocol with special
client software. For now it will be a simple client interface
that you can use with telnet to do certain things.
This is using flex to implement the parsing. Implementation
and more commands will follow.
When using ISDN as network type and using a fake LAPD encapsulation
wireshark should be able to recognize some bits if dump.
Append a dummy LAPD header. It is not clear to me if the Control field
of the LAPD frame is part of the msg or if we need to add it as well.
TODO:
- Do the same for the B Channel
- Write out time
- Check if more of the LAPD frame needs to be prepended. The
information from the mISDNhead comes into mind. Maybe it makes
sense to start a custom wireshark mISDN dissector.
Holger Freyther
Harald Welte