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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
2009-12-19system_information: ip.access wants L2_PLEN, BS-11 doesn'tHarald Welte1-7/+20
It seems that depending on the manufacturer, there is a need to include the L2 pseudo-length in the SI5+SI6 messasges (SACCH FILLING) Thanks to Dieter for pointing this out.
2009-12-19don't print measurement reports that have no cellsHarald Welte1-0/+2
2009-12-19measurement report parsing: NO-NCELL-M of 7 tells us no neighborsHarald Welte1-1/+1
2009-12-19ip.access: Keep a full copy of local and remote IP/PORT in lchanHarald Welte6-54/+96
Keeping all parameters for each RTP connection in the abis_ip member of lchan will help us with actual TCH handover later on.
2009-12-19add --help message about --rtp-proxy argumentHarald Welte1-0/+1
2009-12-19Never allocate transaction ID 7Sylvain Munaut1-1/+1
According to GSM 04.07 11.2.3.1.3 , TID 7 is "reserved for future extensions". Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-19Fix subscr ref leak for multi CM SERV REQSylvain Munaut1-1/+3
Multiple CM SERVICE REQUEST can happen on a single RR connection, in this case, since the subscr reference is tracked through lchan->subscr and will only be put'd once on lchan_free, we need to make sure we don't get several reference .... Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-19Use 'new' rather than 'unknown' when starting transactionSylvain Munaut1-1/+1
'unknown' has a negative connotation for a case that's totally normal so refer to it as 'new' so it doesn't sound like a problem. Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-19Fix transaction_id displayed in debug messageSylvain Munaut1-1/+1
In SMS debug messages, we always display the transaction ID as if we were 'sending' the message. Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-19Fix typos in debug message / commentsSylvain Munaut1-1/+1
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2009-12-18[handover] lchan use count handling in case of trans_lchan_change()Harald Welte1-0/+5
2009-12-18remove call_handling.h, a reminescent of old daysHarald Welte1-64/+0
2009-12-18[handover]: make sure the new lchan keeps the subscriber pointer of the old ↵Harald Welte1-5/+6
lchan also, ensure that we don't print debug messages about handover in non-handover channel activation cases.
2009-12-18handover: use correct handover lookup functionHarald Welte1-1/+1
2009-12-18for now we only do handover of TCH channelsHarald Welte1-0/+9
2009-12-18fix segfault in case of handover timer expirationHarald Welte1-0/+1
2009-12-17add handover.h file to Makefile.am to make distcheck happyHarald Welte1-1/+1
2009-12-17logging: introduce log levels at caller siteHarald Welte16-102/+140
This introduces a new LOGP() macro together with LOGL_* definition to support multiple log levels (severities) throughout the codebase. Please note that the actual logging system does not use them yet, in this patch we simply introduce the new macros at the caller site.
2009-12-17don't try multiple concurrent handovers for 1 channelHarald Welte1-0/+5
2009-12-17[vty] ensure we mark fd in writefd once we vty_out() somethingHarald Welte1-0/+2
2009-12-17call trans_lchan_change() from ho_gsm48_ho_compl()Harald Welte1-0/+3
2009-12-17introduce trans_lchan_change() to update transaction about lchan changeHarald Welte2-0/+24
2009-12-17[handover] first functional handover implementationHarald Welte10-9/+164
With this commit, we can successfully hand over a channel from one cell to another cell. We implement asynchronous intra-BSC (but inter-BTS) handover. Changes: * introduce new DHO log category * extend rsl_chan_activate_lchan() with argument for HO reference * introduce actual minimal handover decision making in handover_decision.c * various fixes to bsc_handover_start() in handover_logic.c
2009-12-17make handover reference a function call argumentHarald Welte2-6/+7
2009-12-16assign measurement report lchan member after memset'ing itHarald Welte1-0/+1
2009-12-16measurement report: correctly parse BSIC of first neighbor cellHarald Welte1-1/+1
2009-12-16ip.access: Keep OML/RSL up/down state per-bts for multi-BTS setupsHarald Welte2-7/+7
2009-12-16print measurement reports more verboselyHarald Welte1-3/+11
2009-12-1604.08: fix off-by-one error while parsing measurement resultsHarald Welte1-19/+19
2009-12-16fix bug in bitvec resulting in all bits being set to 0xffHarald Welte1-3/+3
2009-12-16[system_information] Print more debugging about what's going onHarald Welte2-11/+26
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