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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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According to TS 08.18, BVCI=0 is for the SIGNALLING entity,
and BVCI=1 is for the PTM entity. Both should not be used
by the PTP entity that we're configuring here.
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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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The current setting was not properly written out, this commit is
fixing it. This includes indention, empty bts ip, wrong command
for endpoints and the wrong number (+1 as zero is allocated but
unused).
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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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Now bsc_init.c is able to handle the link down messages.
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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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The previous code only sent the FILE_ID tag data part,
but according to the GSM 12.21 spec, section 8.3.6, the
full SW Description 'object' must be sent so that includes
the NM_ATT_SW_DESCR tag, the whole FILE_ID and the whole
FILE_VERSION (including tags & length fields).
Note that functionnaly on a nanoBTS 139 I couldn't see any
difference ... whatever I send in there it works ...
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Reducing the throttling to this value created a regression with
bringing up RSL on the nanoBTS 900. We do seem to have a bug/issue
in the bsc_init code and might send a command too early without this
longer wait period and then the state transition does not happen.
For now it is agreed that reverting is the best thing to do.
Debugged-by: Sylvain Munaut <246tnt@gmail.com>
This reverts commit f5284ae1cf8babc1567b33f469e20a66a73fcd9e.
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Set the state to activation to avoid a warning about the
getting a CHAN ACK without waiting for it. We set it in
the code to make sure it is set after all error checking
to avoid inconsistent state as the state is only set back
to NONE/ACT due replies from the BTS.
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Currently our GSM04.11 code is closing the link for SAPI=3
and this would mean that the whole channel would be scheduled
for close... where we only want to close everything when freeing
the lchan or handling an error.
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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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I moved the extra code to the layer3 VTY implementation but didn't
remove the variables while doign so, silent compiler warnings.
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paging.c:259: warning: implicit declaration of function ‘trx_is_usable’
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The value 20 is just a random number and it really depends
on the number of TRX on a bts to be a sane or insane limit.
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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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On the nanoBTS we do not receive any load indication for the
paging channel and we just decrement our available slots and
the unsigned int wraps to the maximum value. Together with a
not yet understood bug this makes us go amock.
For the nanoBTS and even the Siemens BS11 resetting the load
to 20 after two seconds should be just fine. For the nanoBTS
we would need to reset the 20 a lot more earlier but we need
to take a look at how often we run low.
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Make sure one understands the two values for number of
incoming packets..
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Increment the counter before we call the remove request
which is freeing the request...
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Send a Paging Request to the BTS every two seconds. This way it is
unlikely that a phone will try to respond to two paging requests as
it is currently happening.
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The length field of the IPA header allows to have 16bit numbers
and I just ran into the 300 byte limit with MGCP messages. Make it
three times the size and see how long this is going to be enough.
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The theory is that the BTS is almost dead and sends out
a incomplete message and we crash with that. I have not
been able to completely verify that.
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Make exit from the MGCP node work properly.
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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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We are storing the bound_ip in host byteorder but when
using ntohl we need to convert it back to to network
byte order.
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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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For the nat we might or might not want to patch it, do not
patch if we have no valid rtp payload type.
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