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Attempt to disconnect the connection and make both sides happy
about this. Right now it only handles the LU and should be extended
to the CM Service Request.
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Add a test case and also add a basic check that we got some
size checks correct. The next step is to act on the result.
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Return early in case the IMSI was already checked, if not we need
to look at the connection and check if the message could contain a
imsi we want/need to filter.
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Return -1 if the IMSI should be filtered, 0 if the IMSI could not
be checked and 1 if the IMSI was checked and allowed to pass. In
the future this will be used to inspect every message coming by.
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Describe which kind of data we have and where it was coming from
as this makes debugging a bit easier.
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We should use VTY_NEWLINE but our strings are static, always
use \r\n as unix terminals can handle that as well.
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Add some code to count TCH/H and TCH/F and also handle
the neci bit of the network. Our channel allocator will
allocate a TCH/F if we request a TCH/H but can not allocate it.
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Only page if we have a load that is acceptable for paging. This
option is off by default, and can be enabled per bts. The idea
is that when we have no resources right now we will not page as
it will only create more RACHs and increase the load.
By default we are keeping the old behavior to always page and
only by changing a setting one is using the new behavior.
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Instead of throwing a huge pile of paging commands to the BTS
we will submit one paging command every half second. This way
we can have different messages between the paging commands.
This is done to avoid crashes of the nanoBTS when too much
paging messages are send.
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Make sure the paging timer is restarted after giving some credit
and send out paging requests.
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It might be that we run down to zero available slots but the BTS
might not send us a load indication. This can happen if we think
we send paging requests and the BTS disagrees and considers them
as errors and does not count the paging message.
When we drop to zero we will start a credit timer to give us extra
credit after six seconds, if we get a CCCH load indication before
we will stop the timer.
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It is possible that the MSC is not sending the channel type it
needs for the operations it wants to do. Add a configuration option
to assign a TCH in case of paging any requests. It can be a good
idea to leave SDCCHs free for location updating requests and use
the TCH for SMS-MT and CC-MT.
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Store the mapping from request to channel type in the GSM Network
struct as there is some policy involved with handling the request.
E.g. in a half rate network we don't want emergy calls to be getting
a TCH/F, or we want to have a different policy for early/late assignment
of phone calls. Update the table when creating the network and when
the neci is changed.
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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 and still considered as experimental.
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When the cell becomes visible we will be bombed with location
updating requests and to reduce the load on the network we should
assign as many channels for it as possible. During load peek it
is even more important than to have a spare voice channel and in
general the LU procedure is pretty fast.
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This is fixing an assert in vty_go_parent due trying to go from
CONFIG_NODE to the parent.
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Add code to replace the Endpoint number for the mgcp.
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i refers to the MSC side of endpoints and not the BSC..
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Do attempt to not reassign an endpoint immediately but go
to the next free one.
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Assume that if the MSC has assigned a timeslot/multiplex it will
also be used for the MGCP. So we just assume that it was allocated
on the BSC as well... in the worse case we will send a DLCX downstream
but it should be fine.
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We are going to have more than one trunk, so all code hardcoding the
multiplex to zero must go. Avoid this kind of problem by saving the
MGCP endpoint number and comparing that.
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Right now only bsc_hack and osmo_bsc need to have a custom
config handling as they use the subscr/oml nodes.
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This uses the osmo_daemonize() function of libosmocore >= 0.1.18,
and is now implemented for bac_nat, osmo-bsc, bsc_hack, osmo-gbproxy
and bsc_mgcp. This means only osmo-sgsn is missing, which currently
has no option parsing at all.
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In both cases the int value was zero, so it actually worked
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Send a facility messages with notifySS/CNAP as payload
to the phone... the function is not called from anywhere
in the tree yet but I use it locally.
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When gprs_ns_sendmsg() succeeds in sending the message, we free()d the
msgb after transmitting it on the socket. However, if the NS-VC is
blocked or some other error condition exists, we returned an error
code but didn't free the msgb.
This resulted in an error leak which is now being addressed.
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If the CRCX is failing, we will send a DLCX downstream and the next
time the callagent tries to do a CRCX we will be more lucky. This is
for the case where we have an endp allocated.
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Do not use the CI_UNUSED to decide if an endpoint is allocated
but introduce a new flag. This way only the CRCX and free_endp
play with the allocated field.
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This will allow to have additional debug information and to
use the state inside the forwarding code.
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