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2010-01-07[bssap] More brown paper... Make variables really signedHolger Hans Peter Freyther1-2/+2
-1 is assigned in case the variables are not set. This means it must be a signed type (as the comment says), now really use a signed type.
2010-01-07[bssap] Fix brown paper bag... Keep the air id ...*sigh*Holger Hans Peter Freyther1-2/+2
We want to use the real number on the Um... Using the core network code is totally wrong in this scope...
2010-01-07[bssap] Allow to use a different country code tooHolger Hans Peter Freyther4-16/+42
* Be able to have a country code in the air but use a different country code when talking to the core network. * Now both country and network code can be different on air and on the MSC communication.
2010-01-06[rsl] Partial revert of the GSM speech mode for the nanoBTSHolger Hans Peter Freyther1-23/+3
This is partially reverting 0603c9d9e58b5d29105361a89ab8cb295da29366, it is true that the ip.access Wireshark dissectors differentiate TCH/H from TCH/F but in my test I'm unable to send RTP on to the BTS. It might be that the RTP payload provided in the MDCX is not the one it will accept with the 0x05 mode. More work needs to be done to understand this, that is the reason it is comitted to the on-waves's branch instead of master.
2010-01-05[bsc_msc_ip] Turn the MNC hack into a config optionHolger Hans Peter Freyther4-6/+37
* Make it possible to have a different MNC in the RSL traffic than in the core network. * Introduce the "core network code NUMBER" variable. If it is set this network code will be used in traffic with the MSC. * Use the core_network_code number when sending a packet to the MSC * Regenerate the LAI (this is where I could have a bug) when sending packets to the BTS. * Add size checks. This is not tested, I might got something wrong.
2010-01-05[bsc_mgcp] Set the right remote rtp and rtcp portHolger Hans Peter Freyther1-0/+2
* It is the same as local endpoint port
2010-01-05[bsc_mgcp] Fix writing of the config file...Holger Hans Peter Freyther1-0/+2
* Add the new forward audio option
2010-01-05[bsc_mgcp] Print a message which mode is configuredHolger Hans Peter Freyther1-0/+4
2010-01-05[bsc_mgcp] Add a new forward only mode to the bsc_mgcpHolger Hans Peter Freyther1-25/+61
With forward IP in the config and early bind on we will simply forward RTP data on the endpoints from BTS to the forward IP address. This is implemented by disabling MGCP functionality when a forward IP address was specified, setting the forward IP in the endp->remote and assigning a ci != CI_UNUSED. Early bind will make sure the sockets are created, the BSC FD's are registered and then the normal dispatch code will do the forwarding.
2010-01-05[bssap] Set the right GSM08.08 speech version indicatorHolger Hans Peter Freyther1-6/+13
* For half rate we also need to set the 3rd bit to one * See GSM08.08 §3.2.2.51 and then §3.2.2.11
2009-12-22[misc] Move handover into libmsc.aHolger Hans Peter Freyther1-3/+4
Handover is a high level decision, it can span multiple BSCs and belongs mostly into the MSC domain.
2009-12-22Merge commit 'origin/master' into on-waves/bsc-masterHolger Hans Peter Freyther56-928/+4351
Conflicts: openbsc/include/openbsc/Makefile.am openbsc/include/openbsc/gsm_data.h openbsc/src/Makefile.am openbsc/src/abis_rsl.c openbsc/src/chan_alloc.c openbsc/src/gsm_04_08.c openbsc/src/gsm_data.c openbsc/src/vty_interface.c The biggest problem is the moving of the RTP code into the RSL layer. This may break quite some things...
2009-12-22[misc] Move rtp_proxy.c into the libbsc.cHolger Hans Peter Freyther1-2/+2
For the time being RSL has to know about Layer4 and upwards and is using the RTP socket class....
2009-12-22[gsm48] Move gsm48_parse_meas_rep to gsm_04_08_utilsHolger Hans Peter Freyther2-68/+69
Move the function over to the _utils side as handover measurement is compiled into libbsc and we don't want to end up with linking errors.
2009-12-22keep some internal statistics inside OpenBSCHarald Welte8-1/+128
the statistics will give us some idea about the network load and performance.
2009-12-21it's LOGL_ERROR, not LOG_ERRORHarald Welte2-3/+3
2009-12-21[sms] bugfix: additional functionality indicator only appears in ↵Steffen Neubauer1-1/+2
TP_VPF_ENHANCED - not in TP_VPF_ABSOLUTE
2009-12-21make sure bootstrap_bts() only contains static initializationHarald Welte1-3/+5
values that might change at runtime are moved to set_system_infos() which we might now also call at runtime to update the BTS with changes in the SI
2009-12-21remove duplicate flag for cell barringHarald Welte3-7/+4
it's sufficient if we keep the state of cell barring in one place
2009-12-21ipaccess: Fix two minor bugs regarding multi-TRX setupHarald Welte1-2/+3
we need to set newbfd->priv_nr to 2+trx_id, rather than keeping it '2' all the time, as it is used to look-up the e1i_ts when we receive a packet. A constant '2' would always match to TRX 0. we also need to keep one separate bit for each TRX state in order to properly generate the EVT_E1_TEI_UP event for trx > 0.
2009-12-21[gprs] SI 13 should only be generated on C0 (BCCH-carrying TRX)Harald Welte1-7/+8
2009-12-21[abis] Do not access an array with N elements at index NHolger Hans Peter Freyther1-3/+3
Possible crash fixes by preventing accessing the array out of bounds.
2009-12-21[abis] Properly compare obj_inst->trx_nr to bts->num_trxHolger Hans Peter Freyther1-2/+2
* Use >= in this case as we start counting the trx from 0 * This is fixing a problem with multi trx config
2009-12-21make handover algorithm parameters configurable from VTYHarald Welte1-0/+65
2009-12-21[handover] Real handover algorithmHarald Welte5-27/+241
This implements the handover algorithm (and associated parameters) as described in Chapter 8 of the book "Performance Enhancements in a Frequency |Hopping GSM Network" by Thomas Toftegard Nielsen and Jeroen Wigard. The parameters such as averaging windows are configured in struct gsm_network. We keep some state to trakc up to 10 neighbors as they are being reported from the MS. This has so far only been tested in a network with two BTS that have each other as neighbor. Networks with morge neighbors might encounter bugs.
2009-12-21handover: set old channel to INACTIVE stateHarald Welte1-1/+4
After receiving the HANDOVER COMPLETE on the new channel, we mark the old channel as INACTIVE and try to release it ASAP.
2009-12-21RSL: keep track if a channel is active or notHarald Welte2-0/+19
This allows us to block packets that we have received after the channel is no longer being used. This is visible during handover, where we still receive a measurement report after the MS has switched to the new channel. This leftover measurement report then attempts to trigger another handover, which si bogus and will fail - and thus only consumes resources. With the new LCHAN_S_ACTIVE state, we can check for this when processing the measurement report.
2009-12-21meas_rep: utility function for processing of measurement reportsHarald Welte3-1/+142
This provides two functions: get_meas_rep_avg() to obtain the sliding window average of one particular field, and meas_rep_n_out_of_m_be() to check if at least N out of M measurments are >= BE.
2009-12-21Fix typo s/memcpy/memcmp in trau_frame.cAndreas Eversberg1-1/+1
2009-12-21chan_alloc: Delete T3101 on lchan_free as wellSylvain Munaut1-0/+1
If a RF channel is assigned but no response is ever heard from the phone, we will receive a CONNECTION FAIL from the BTS, triggering a RF release freeing the channel. Then sometime later, T3101 will expire as well and free the channel again ... Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-21[db] Fix queries for unsent SMSSylvain Munaut1-3/+5
- Need to use sms.id for the ORDER BY since 'subscriber' also has 'id' - Need to add the join clause between 'SMS' and 'subscriber' - Add a LIMIT 1 (probably no impact for the db size we're dealing with here, but with large DB and mysql/postgresql this can help the planner) - (fix a wrong comment in passing ...) Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-20Fix some compiler warnings regarding missing const in rest_octets.cHarald Welte1-2/+3
2009-12-20fix compiler warning and coding style in rtp_proxyHarald Welte1-2/+3
2009-12-20[handover] implement TCH RTP stream handoverHarald Welte1-1/+69
This patch takes care of handling the RTP streams / sockets during an in-call handover from one BTS to another BTS. It only works in combination with rtp_proxy mode.
2009-12-20rename ipacc_connect_proxy_bind() to rsl_ipacc_mdcx_to_rtpsock()Harald Welte3-17/+18
Our RTP sockets are no longer just for the proxy mode, so having "proxy" in the function name is really misleading.
2009-12-20Move RTP socket handling out of signal handlers into abis_rslHarald Welte2-26/+33
This is not really nice, but we will soon have multiple users of the CRCX / MDCX / DLCX signals, and we cannot guarantee the ordering of them. So as a workaround, we move the RTP socket creation and deletion into the core abis_rsl codebase.
2009-12-20don't enable handover unless RTP Proxy is enabledHarald Welte1-0/+6
We cannot support in-call handover of calls without a RTP proxy, since at the time of the handover the SSRC, sequence number and timestamp of the RTP frames change.
2009-12-20Introduce new MNCC based proxy modeHarald Welte1-4/+59
Since the MNCC API can now send and receive frames to/from the MNCC application, we can also implement a proxy this way. Not at the RTP/UDP packet level, but at the 'TCH speech frame' level. Especially for handover, we need this mode as the receiver in the BTS needs a persistent SSRC and monotonic frame numbers / timestamps.
2009-12-20remove hand full of 'extern ipacc_rtp_direct' definitionsHarald Welte4-4/+1
and instead declare it in gsm_data.h
2009-12-20RTP Proxy: Fix RTP sequence number and timestamp in case of dropped framesHarald Welte2-0/+36
During handover, we will not send RTP frames for quite some time. However, the way the rtp_send code is structured, it will increment the timestamp with a fixed amount every time we send a frame, independent how much wallclock time has actually passed. This code is a hack to update the sequence number and timestamp in case it seems to be wrong. It makes handover much more reliable.
2009-12-20add FIXME to IMSI DETACH INDICATION: we need to release all transactionsHarald Welte1-0/+3
2009-12-20fix segfault in rrlp code in case of unsuccessful pagingHarald Welte1-0/+4
PAGING_COMPLETED can be signalled without an active lchan in case it was unable to page the repsective subscriber.
2009-12-20handover: disable default-printing of every measurement reportHarald Welte1-1/+1
2009-12-20handover: no debug message for ever non-handover measurement reportHarald Welte1-3/+1
2009-12-20handover: don't create negative lchan use countsHarald Welte1-3/+0
trans_lchan_change() takes care of use counts for us.
2009-12-19Add RTP support for EFRHarald Welte3-1/+11
This is just the minimal support to receive and send EFR codec RTP frames. We are missing the code to convert TRAU frames in EFR format!
2009-12-19RTP-enable MNCC API for LCR + ip.accessHarald Welte7-52/+409
Instead of passing TRAU frames down the MNCC API to the call control application like MNCC, we now decode the TRAU frame into the actual codec frame. We do the same with the RTP packets in case of ip.access and thus have a unified format of passing codec data from the BTS to an application, independent of the BTS type. This is only implemented for V1 full-rate at the moment, and needs to be fixed.
2009-12-19[handover] add VTY parameter to enable/disable handoverHarald Welte3-7/+28
2009-12-19[handover] don't use measurement reports with NCELL=7Harald Welte1-0/+3
NCELL=7 inidicates that there was no neighbor cell info in the SI5 on the SACCH.
2009-12-19system_information: DEBUGP() SI13/5/6 during startupHarald Welte1-12/+12