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- Make sure that on runtime the Radio Carrier can be
locked and unlocked. The vty code calls into the
Abis NM to lock/unlock the channel and the state is
stored there.
- Make sure that on start the Radio Carries remains
offline and we are not starting it. On start the
radio carrier is either locked or unlocked. This means
the RSL will not connect until the RF is unlocked. It
will connect then. To see RSL bringup failures one
needs to parse the RSL nack message.
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Remove the timer handling from the LCHAN and release the
channel ones the use count is dropping to zero.
Change code that was sending/using the lchan after the
release and change the send data method to warn in case
the lchan is used after it has been freed.
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Stop having a global variable... keep it in the
gsm network or the mgcp
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Send the message every 60 seconds on every SCCP
connection. The 60 seconds were taken from a protocol
trace obtained on the network.
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Add network configuration option to specify which audio
codecs are supported by the BTS. This allows the BSC to
pick the audio codec in the GSM0808 Assignment Request.
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For the MSC we need to queue GSM04.08 messages until the
SCCP connection is confirmed to be open and then can send
the stored messages. The queue is limited to 10 messages
at which point new ones will be dropped. Currently the
only messages we get are measurement indication messages
but it is better to be safe than sorry.
The SCCP messages are sent as soon as the connection
is considered established and then no queueing happens
any more. While replacing sccp_connection_write calls
various memory leaks has been fixed.
For the MS we might have received a DTAP and need to do
an operation that requires a roundtrip and want to send
wait until this has happened. The two scenerios are sending
a SMS to the phone that requires to do something special
for the different SAPI. Currently it is assumed that
only one SAPI=0 -> SAPI=3 change happen during the connection.
For the first SAPI != 0 we will send the rll_ request
and then wait for the timeout or confirmation. In case
of timeout a SAPI "n" reject is sent and in case of
success the queue is getting emptied.
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This is a BSC to be used by on-waves.com to connect to a real
MSC using SCCP over IP.
The following messages and features are currently implemented:
- IPA identity ack's
- COMPLETE LAYER3 INFORMATION
- DTAP
- PAGING COMMAND
- CLEAR COMPLETE/CLEAR REQUEST
- CIPHER MODE COMMAND/ REJECT /COMPLETE
It comes with a tool to create the enum's from the spec and
a very simple test server to do the handshaking.
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Both GSM 04.08 RR and GSM 08.58 RSL need the multirate config
in the channel modify. Place the config in the lchan, change
the gsm48 methods to not take the argument, change the RSL
implementation to make use of it with the right IE.
The other code should use the t(l)v_put routines as well but
were left untouched for now.
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Allow to configure the NECI value... and change code
that is relying on the NECI value.
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makes printf much easier on 64bit platforms...
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Keep track of which SAPIs have been established either by the
BTS (from the MS) or by us. This can be used by the on-waves
BSC code to figure out if a new request should be made.
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There is no use to have a signed bit in bitfields..
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GPRS needs PDCH (Packet Data Channels), and we need support in
our data model as well as OML and RSL for it
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Supporting GPRS means we have a number of additional OML objects to
deal with. We need to extend our gsm_bts structure to at least
include the nm_state for each of those objects.
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Add support for 1900 nanoBTS by using unified bts_type
GSM_BTS_TYPE_NANOBTS for 900, 1800 and 1900 versions.
Reduce the nanoBTS enum values to one and derive the
version from the user supplied band. In the future we
might want to do auto band detection.
The configuration file needs to be changed to refer
to nanobts instead of nanobts900/nanobts1800.
Signed-off-by: Mike Haben <michael.haben@btinternet.com>
Signed-off-by: Holger Hans Peter Freyther <zecke@selfish.org>
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The LAC can be 16bit of size. the generation of the LAI, struct
gsm_subsriber and the BSC<->MSC was already using it as a
16bit (short) value.
Change struct gsm_bts to parse 16bit and change the vty configuration
parsing code to deal with a short too.
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Transfering the cell_identity from BSC to MSC is required for the
on-waves.com support. Allow to set the cell_identity in the cfg
file and patch the system information tables to set it.
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This is just configuring the gsm_network property, nobody uses it yet
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This just adds the 04.08 and RSL bits for A5, but not the logic
for performing authentication.
The caller would first set lchan->encr and then call
gsm48_send_rr_ciph_mode(lchan), which encapsulates the 04.08
CIPHERING MODE COMMAND into a RSL ENCRYPTION COMMAND and sends it
to the BTS for execution + forwarding.
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this is not being used yet
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The channel allocator can be set in ascending or descending order.
Ascnending means we first try to allocate channels on TRX0, then TRX1, etc.
Descending means we first try to allocate cahnnels on TRXn, then n-1 down to 0.
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this was missing from commit a08a9acdb6bff0ee4fdf0f58b78b6525017a1f9f
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we now have the full path from the MS into the database (SUBMIT), as well as
back from the database to the MS (DELIVER). The database gets correctly
updated once a SMS has been successfully delivered.
What's still missing is the periodic scan over all undelivered messages,
trying to deliver them to the respective MS. So far, you have to manually
trigger this on the telnet interface with 'sms send pending 1'
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* we only need one piece of code to calculate rsl_ie_chan_mode from
our run-time data structures (gsm_lchan)
* add some more channel modes for TCH/H and data
* use enum's to make the compiler warn us about unhandled enum values
* make sure the caller determines the (signalling,speech,data) mode
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Up until now, we only supported direct RTP streams between ip.access BTS.
With this commit, the user can specify '-P' to the command line to enable
a RTP/RTCP proxy inside OpenBSC. The nanoBTS will then send all their voice
data to OpenBSC, which will relay it to the respective destination BTS (which
can be the same BTS).
The default behaviour remains unchanged. Without '-P' on the command line,
RTP/RTCP is exchanged directly.
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Since a transaction is associated to a gsm_subscriber, and the subsciber
is part of a network, we don't need to have a dedicated transaction->network
pointer.
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This changeset factors out gsm_transaction as something independent
of call control in preparation to re-use the code from SMS. A
transaction is uniquely identified by either its callref, or by
a tuple of (transaction_id, protocol, subscriber).
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Since a transaction is associated to a gsm_subscriber, and the subsciber
is part of a network, we don't need to have a dedicated transaction->network
pointer.
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This changeset factors out gsm_transaction as something independent
of call control in preparation to re-use the code from SMS. A
transaction is uniquely identified by either its callref, or by
a tuple of (transaction_id, protocol, subscriber).
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to reflect that we now know their true names/meanings
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* describe data structures in gsm_04_11.h
* increae LCHAN RELEASE TIMEOUT for case of long SMS
* convert header field in sql table from NUMERIC to BLOB
* initial handling for validity period
* send RP ERROR messages with meaningful RP CAUSE in case of error
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