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While doing 'nm' on a VTY-using object file I noticed that all
cmd_elements are global symbols, which is not good.
Unfortuantely there are some vty-internal cmd_elements that need
to span across object files, so I had to introduce gDEFUN()
and gALIAS(). The old macros now all declare static structures.
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Stop using the global vty context for all allocations
and allow to embed the buffer into a given context, and
allocate sub buffers with the context of its parent.
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Be able to tune the RACH settings of the BTS via the vty interface,
by default they are initialized to -1 which means we will use the
content of the static array (BTS default) and can be changed via
the VTY interface. I have verified the setting on the nanoBTS with
wireshark and I have tested writing the config file.
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This can be used by higher level code to send one dummy
message from the audio port to the network. This can be
used to make the remote discover the nated port of this
endpoint.
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This causes some config file breakage but sounds like a much cleaner
approach than to have two separate config variables for this.
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Extension Information is part of the GPRS Cell Options IE, as
specified in Chapter 12.24 of TS 04.60. It is needed for
indicating EDGE capabilities of the BTS to the MS.
This simply adds the code to encode this IE as part of SI13,
but does not actually use the code yet.
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Add two new counters to count the RF Failures and the RLL Release
failure and make them available via the vty interface.
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Move the statistics command into the MSC part and move the
BSC statistics printing into a subroutine.
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Free all allocated channels on the TRX that failed, go through
lchan_free to signal higher layers and then force a reset of
the channel. Make the TRX and TS unusable by setting the operational
set to 0 (not really defined) which should be reset once the
RSL is coming up again.
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This is addressing multiple issues regarding the loss of the
OML/RSL link to the BTS.
1.) When we lose the OML link, close down all RSL connections
on all TRXs (only tested with one TRX) and free the e1inp_line
allocated for the OML connection.
2.) When we lose the RSL link on any TRX and we know to which
lines this connection belongs, we will close down the OML connection
as we have a problem to just reactivate one RSL link.
3.) When we lose the RSL link on any TRX and we do not know
where it belongs to we will free the bfd we have allocated in the
rsl listen/accept method and we properly close the socket (i could
not test this one properly). This is made under the assumption
the BTS has not responded to the ID request.
4.) When we already have a bts->oml_link we will throw it away
and use the new link (it should not happen) and the same applies
to the rsl link.
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For GSM V1 FR, the payload type is fixed to 3 in the RFC.
But for the other codecs, the payload type is dynamically assigned
between 96 and 127. Here, we use a static mapping internal to OpenBSC.
This patch is needed to make a rather old 139 unit (with sw version
120a002_v149b42d0) work with something else than FR codec. I also tested
this patch on a newer 139 (with sw version 120a352_v267b22d0) to make
sure it didn't add a regression. More testing with newer EDGE units
should be done by whoever has some of theses.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Setting the state through a dedicated method allows us to
track the state transitions and check if they are done in
a proper way.
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The current code was overly complex. It tried to iterate over
the list in a round robin and we had to keep track of the last
element, see if we remove that one, check if the list becomes
empty... This can all replaced by treating the double linked
list as a queue. We take the item at the front, do something
on it and then and then put it back to the list at the end.
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For some mode of operation it can be acceptable to reallocate
an already allocated endpoint. This can be the case when we
only deal with one call agent that is keeping track of the
endpoint but slightly confused.
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Currently vty_interface.c is used for the BSC config, in case of
the MGCP Gateway or the BSC Nat process these logging commands are
not available. Move the commands to a new vty_interface_cmds.c file
to allow to share basic commands across different programs.
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This will be used by the NAT code to implement custom protocol
handling on top of that.
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In the case of the nat we only want to communicate with one
upstream call agent and this can now be configured.
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Move the conversion of GSM0808 timeslot and multiplex from
the bssap.c into the mgcp.h so it can be reused by multiple
users. The weird math comes from the mapping of the MSC...
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This will just call a callback and leave all the handling
to the application.
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This message is ignored by the call agent and we were
sending this on the first request which we maybe should
not ignore...
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E.g. when the underlying connection transport medium is gone
one needs to force to close SCCP connections, add this helper.
It will remove the connection from the list of connections and
it will free the data.
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This code simply enables the channel allocator to understand the
dynamic TCH/F / PDCH channel type as used by ip.access nanoBTS.
It does not actually try to switch the dynamic mode, but instead
sends signals to a (not yet present) dynamic switching algorithm.
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We use the (currently unusued) flags member of the bts_trx_ts structure
to track if a dynamic TCH/PDCH is currently on PDCH mode or not.
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The logging/debugging code is generic enough to move it into libosmocore
while keeping OpenBSC specific definitions in openbsc itself.
This commit uses the logging support present in libosmocore-0.1.2,
you will have to update your library to this version.
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Instead of deleting the msgb within the SCCP library the implementor
of the write callback needs to free it. This is required for non
blocking io with the server.
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The "sms send pending" VTY command did not work due a mismatch
of types. We are specifying a unsigned long long in the query
and provided DBI with a signed integer type. The result was a
failure do find any information.
Change the API to operate on unsigned long long that is matching
the id of the SMS and the Subscriber and the mismatch with the
query string is gone and pending SMS are sent.
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Remove further usage of lchan from the gsm 04.11 bits
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The 08.08 API will interface with the internal BSC code and it is
the boundary between MSC and BSC. So nothing that calls the BSC
functionality should know about lchan or such.
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Change the MSC transaction code to operate on a GSM Subscriber Connection
instead of the lchan. This will help us to separate the two commands properly.
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Prepare to split the BSC and the MSC part by putting the
MSC data for a connection into a "gsm_subscriber_connection"
struct and renaming the macros.
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This new gprs-conf branch is intended to contain everything needed
to configure GPRS in the nanoBTS, but without implementing the SGSN/GGSN
functionality.
The SGSN/GGSN development will happen in a branch based on this branch
called "gprs-sgsn"
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The first non working version to dump the content of the sdp
to the terminal..
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* The length of the table is not at a fixed position. We will need
to read the offset, seek there, read the data, convert it to the
host endianes.
* Prepare the code to work with offsets of 0...
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* gsm48_generate_lai() gsm48_generate_mid_from_tmsi() gsm48_generate_mid_from_imsi()
* gsm48_cc_msg_names[]
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