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Patch the sequence number, the SSRC and the timestamp to
allow to mix various voice streams, e.g. toggling the loop
during the call.
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Use a struct to group the rtp state for the up and the down
link of the bts.
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Conflicts:
openbsc/src/mgcp/mgcp_vty.c
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Keep a back pointer to the rf struct inside the connection,
resolve the network through the back pointer. Also assume
that the RF is on. In case we start with RF locked, the policy
is on but we will not see any MS talking to us.
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Right now we have a network-wide RF lock, in the future
one BSC might have multiple BTSs at different positions
and a global state will not make sense anymore and need
to be moved over to the BTS struct..
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In case of an ordered RF shutdown we can enter a grace period
where no new RF connections are allowed but active connections
will stay alive until the RF is switched off.
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Allow to specify the level (not the category) of the notification
this provides an easy way to test it on the phones.
Conflicts:
openbsc/src/vty_interface_layer3.c
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We need to release the USSD unit, otherwise it is staying blocked
and will stop to function (even across LUs on my a1200). This code
should encode the transaction and the direction depending on the
network state but this is omitted right now.
Conflicts:
openbsc/src/vty_interface_layer3.c
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One should be able to send a USSD Notification to a given
subscriber if we has an active link...
Conflicts:
openbsc/src/vty_interface_layer3.c
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Create a unstructuredSS-Notify for a given type.
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Implement a GSM 04.80 invoke wrapper for a component and an
invoke id.
Conflicts:
openbsc/src/gsm_04_80.c
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This code compares the UDP sequence numbers of two RTP messages
and guesses if packets are missing. It is guessing in two ways:
1.) by default the sequence number is 0, so on the first
value we ignore the jump... we might ignore a real issue
in case of a wrap around which is easily possible as the
sequence should be a random number.
2.) the UDP stream might have been reordered on the network
and we would see the jump...
In any case these two shortcomings are acceptable for the feature
that is meant to provide some basic analysis..
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DSCP is the more modern information for TOS and the kernel
will set parts of TOS by itself (e.g. for ECN).
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Instead of sending many messages we will queue the OML
messages and wait for the ACK/NACK before sending the
next message from the queue. We tag the msgb to remember
if we need to wait for an ack or not.
We keep the order of all messages, on ACKs and similiar
occassions we will drown the queue until we reach a message
that needs to be acked and then wait for that ack again.
Possible breakage can appear when we send an OML (e.g.
BS11 specific message) msg which does not need to be acked
through the abis_nm_sendmsg call. The fix will be to use
the _direct version of this method.
Re-Enable as it might have fixed something... who knows.
Conflicts:
openbsc/include/openbsc/abis_nm.h
openbsc/include/openbsc/gsm_data.h
openbsc/src/gsm_data.c
openbsc/src/input/ipaccess.c
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This has not fixed the init issue and we will need to figure out
an alternative to this.
This reverts commit a68f139820ea02c05ff64e265084c1dda8c7ea3a.
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Allow the MS to use uplink discontinous transmission by
setting the right bit in the SystemInformation and set
DTXd/DTXu on the RSL channel commands.
This is configurable via dtx-used (0|1) on the network
level..
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Instead of sending many messages we will queue the OML
messages and wait for the ACK/NACK before sending the
next message from the queue. We tag the msgb to remember
if we need to wait for an ack or not.
We keep the order of all messages, on ACKs and similiar
occassions we will drown the queue until we reach a message
that needs to be acked and then wait for that ack again.
Possible breakage can appear when we send an OML (e.g.
BS11 specific message) msg which does not need to be acked
through the abis_nm_sendmsg call. The fix will be to use
the _direct version of this method.
Conflicts:
openbsc/include/openbsc/abis_nm.h
openbsc/include/openbsc/gsm_data.h
openbsc/src/gsm_data.c
openbsc/src/input/ipaccess.c
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The Channel Activate might be sent to a different TRX than the
Immediate Assignment. So we need to make sure that the channel
is activated before we send the immediate assignment for the RACH.
Another reason for that is according to GSM 08.58 we should take
the frame number from the activate and use it for the starting
time inside the immediate assignment message. We obviously do not
do this yet.
The code assumes that the BTS will either respond with a CHAN ACK
or a CHAN NACK if not the lchan will remain in the request state.
Conflicts:
openbsc/include/openbsc/gsm_data.h
openbsc/src/abis_rsl.c
openbsc/src/chan_alloc.c
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This variable can be used by higher levels to declare they
were done with lchan...
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This can help to detect 'stale' channels in a network.
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Inside the access-list we have a list of entries that have
either one allow or one deny rule... we do not allow to remove
a single rule but one has to remove the whole list, in that case
talloc will handle cleaning all entries.
Right now the matching is O(n*m) as we traverse the list
(multiple times) and run the regexp multiple times. One
way to make it faster would be to concat all regexps into
one.
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One can set one access-list to one BSC and one
access-list to one NAT. The matching of IMSIs
remains the same for now, also applying the
white/blacklist. Access lists can not be deleted
for now and no perf opt is done (e.g. one could
cache the result of the last lookup in the bsc
struct).
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This is applied to all incoming BSC connections.
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Allow to set the TOS field via the VTY interface. The
SO_PRIORITY was not used as it has no effect on the
packets being sent (in contrast to the documentation).
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We will need to confirm the connection, then we can send the
GSM48 message, then we need to close the connection... the
embedding in the refusal method was way too easy..
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Right now it was not possible to just find a connection, by returning
the connection that is created we will have direct access to it. It
will be used by the local connection handling.
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The msgb needs to be around when we access the parsed structure
but that needs to be guranteed by the caller handing out the parsed
structure.
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A local connection is only between the MUX and the real BSC. We will
not forward anything to the MSC. This will be needed for the IMSI
filtering as sending a CREF is not liked by every BSC...
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Split out the msg generation from the sending, this will
be used by the nat to send a refusal message.
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We are analyzing each CR message and it is nice to know the
reason these connections were created. Change the nat method.
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This is a generic MI extraction for the MI if it is followed
after a classmark. For the Phase1 Phones the classmark2 is not
four bytes but it might be different. This code can be used
by the CM Service Request handling as well.
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We go from no size checks to some content checking. We should
refactor the whole classmark2 + mi parsing that is used throughout
the code into one place with proper size checking. This is the
start and requires a new libosmocore as well.
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