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Be able to parse the entire SW Config IE. Parse the SW Descruption
into a struct provided by the caller.
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In case of AMR one can specify the available codecs out-of-band. Allow
to configure this line statically in the configuration file.
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MGCP is used over UDP and a response might be lost. The MGCP RFC
asks for keeping a list of responses and then using the previous
response to answer a duplicate request. I tried to conserve memory
and just wanted to remember the last transaction identifier and
result-code and re-generate the result from that. This made the
code look bad and this is why the entire response will now be stored.
It sadly increases the memory usage but can not be avoided at this
time.
Remove the msg->l3h pointer for the RQNT callback as strtok has
modified the content of it.
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This is required for remembering the last result in a central place
and is required to properly implement detection of re-transmissions.
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Make sure to accept the phone first before sending the USSD message.
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For GSM (not GPRS) we will never use a SAPI!=3. Simplify the code
and remove the link_id=0.
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Rebased, tested and fixed by Holger Freyther. Release the transaction
only once the SMC is asking for the release and set the cb's to NULL
to catch a use after free early.
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This has been rebased and fixed by Holger Freyther. The change of
the debug area was split out in a previous commit and the is_mt was
put back into the transaction code.
The transaction is now freed from the RELEASE_REQ sent by the SMC
layer and not inside the error path. When clearing the SMC instance
we also clear the callbacks.
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This is more a work around and one still needs to implement a
proper dispatch on the opening of the connection. If there is no
operation left, no transaction and no silent call, close down the
channel.
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Introduce a callback for the request and forward the signalrequest
to the callback. This is not a full implementation of MGCP RQNT.
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This program binds as ESME transceiver to a SMSC and simply mirrors back
all SMS that it receives.
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Each ESME can have a number of prefix-matching routes, or it can
be a 'default route' to whcih all otherwise unknown SMS destinations
are routed.
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WARNING: if the ESME disconnects, osmo_esme gets freed, and
sms->smpp.esme might point to invalid/unallocated memory!
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Move to the control command handling out of the main file into
a dedicated module. There are still some calls embedded into the
main code but it will be moved soon.
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Use a usec timestamp for the local time. The seconds to usec will
swap over to the lower bits but this appears to be correct. The
CLOCK_MONOTONIC is used to fulfill the RFC 3550 requirement even
if it is a bit slower than the gettimeofday.
Make sure to initialize transit in a way that the first transit
time will be 0. Otherwise the jitter will contain the difference
of the localtime and the remote time.
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Calculate the expected packages and packet loss as of RFC 3550.
The values should be clamped but our packet loss counter is 32
bits and not 24 and we should clamp at other values but I am
waiting for some issues first before dealing with that.
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This is missing the probation and the dealing with a remote
restart. For the remote restart we will simply write a log
statement as this is unlikely to happen during a call or if
it does happen the call will be taken down by the BSC anyway.
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Align the naming inside the mgcp_rtp_state with the naming inside
the 'source' struct of the appendix. Make first_seq_no/base_seq
a uint16_t. This is removing rules for alignments and reduces the
struct from 40 bytes to 36.
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Follow the MGCP specification and send the collected statistics
at the end of a call. Right now this does not include jitter, packet
loss and delay.
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This information is required for calculating the packet loss at the
end of a phone call.
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Count the received octets. This is encouraged by the MGCP specification.
Use a 32bit counter that is good enough for more than 12 hours of a EFR
call. This limit is good enough for the current configuration.
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The RFC 3435 specifies a different formula for calculating the lost
packages. It involves the number of received packages and the delta
of the sequence number.
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The previous code didn't work as expected. The trx and dst pointer
are located in an union and in the case of the Abis code the dst
is used to point to the signalling link timeslot and not the TRX.
The is_ipaccess_bts always returned false because the dst was casted
to a trx while it was no trx.
This fix was tested with the nack_test/NACKTest.st of the test repo.
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I saw the old copy of the "Appendix J" code too late and I have
discovered some quirks and I am more familar with my implementation.
Most noticable 'w' only needs to be as big as the input arfcn but
requires the 'w' to be initialized. The power_of_2 implementation
differs as well (mine matches the output of wirehsark).
The f0 could be chosen in a better way but right now picking
the lower bound is the easiest. It is not clear if to use
modulo if the range is chosen in the middle. This can be improved
in the future. Right now I have no bit fiddling for range128, 256
and 1024 as I was running out of time.
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Look for emergency calls and send them to a MSC that can
handle them properly.
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Pass the osmo_msc_data to the paging sub system, change the code
to pass the osmo_msc_data instead of network + bsc_msc_conn.
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For responding to paging on the right link we will need to
figure out if the msg is a paging response.
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Select a MSC, add it to the back of the list after we have
selected it.
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net is now implicit in the root node
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The first fields are still the location up to the height.
The next field is "operational" if any of the trx are operational,
otherwise "inoperational"
The second to last field contains "locked" if all of the trx are in the
admin state, otherwise "unlocked".
The last field represents the rf policy currently in effect. It is one
of (on|off|grace|unknown).
<tstamp>,<valid>,<lat>,<lon>,<height>,<oper>,<admin>,<policy>
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Sends a command to all ctrl connections except the one it originated
from.
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nat: Catch up with controlif_setup API change
We now save a control handle reference in the nat
osmo-bsc: Catch up with controlif_setup API change
We now save a control handle reference in the gsm network
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We now have a lchan->csd_mode member that determines if RSL should
activate the channel in CSD transparent services or not. The previous
code always assumed CSD is non-transparent.
(This requires libosmocore >= eed26116c96f03c6128fac3dead9054714af6cab)
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this uses vty_cmd_string_from_valstr() from _very_ recent libosmocore,
so you have to update the library, sorry.
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Group all three structure members involved in bts-specific timezone
handling into a sub-structure.
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so far, osmo-bts/sysmobts used to be entered as "sysmobts" type in the
configuration file. However, there are some differences in the
protocol/behaviour and we should reflect that by a new BTS plugin (with
lots of code reuse from the nanobts driver).
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this is primarily needed on the BTS side, but we should also use it on
the BSC side and make the parameters VTY-configurable.
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This removes the libgb (GPRS NS/BSSGP) code from the openbsc.git
repository and uses the new version from libosmocore.git instead.
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