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Original libvlr code is by Harald Welte <laforge@gnumonks.org>,
polished and tweaked by Neels Hofmeyr <nhofmeyr@sysmocom.de>.
This is a long series of development collapsed in one patch. The original
history may still be available as branch neels/vlr_orig.
TODO: This commit may be split in several smaller changes before merging to
master.
SMS:
The SQL based lookup of SMS for attached subscribers no longer works since the
SQL database no longer has the subscriber data. Replace with a round-robin on
the SMS recipient MSISDNs paired with a VLR subscriber RAM lookup whether the
subscriber is currently attached.
If there are many SMS for not-attached subscribers in the SMS database, this
will become inefficient: a DB hit returns a pending SMS, the RAM lookup will
reveal that the subscriber is not attached, after which the DB is hit for the
next SMS. It would become more efficient e.g. by having an MSISDN based hash
list for the VLR subscribers and by marking non-attached SMS recipients in the
SMS database so that they can be excluded with the SQL query already.
There is a sanity limit to do at most 100 db hits per attempt to find a pending
SMS. So if there are more than 100 stored SMS waiting for their recipients to
actually attach to the MSC, it may take more than one SMS queue trigger to
deliver SMS for subscribers that are actually attached.
This is not very beautiful, but is merely intended to carry us over to a time
when we have a proper separate SMSC entity.
Introduce gsm_subscriber_connection ref-counting in libmsc.
Related: OS#1592
Change-Id: I702ba504ce2de93507312c28eca8d11f09f4ee8b
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Use new function available in libosmocore to set up timers. Compile
tested only.
Change-Id: Ibcfd915688e97d370a888888a83a7c95cbe16819
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Tweaked-By: Neels Hofmeyr <nhofmeyr@sysmocom.de>
Change-Id: I7361033cd1eb919ec3c2ea2652f40ab8c75b2f99
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rate counters support the export to statsd and can have a delta value.
Change-Id: Ie749cebd53a0bb618d0e23d375885712078bf8dd
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The state is directly overwritten by the next function. Because
there isn't any state transition, remove this state.
Change-Id: I7f287692dbd559268fb5e61d81ac19e5dd4827eb
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Have a comment only in the .c file to remove dup, tweak wording, use doxygen
style.
Change-Id: If054dad877a1ca750cd72be9c9d90bcf087bf741
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The new lchan will be in speech mode already but for AMR we will
need to provide a working multirate config in the channel activation,
otherwise the channel act might be nacked.
Copy the config from the current lchan into the new lchan. The
abis code simply added the mrconf if the speech mode was amr.
Before this commit the invalidate mrconf with all zeroes was
copied/sent.
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In case of a ho_chan_activ_nack (sent due another bug inside
both sysmobts and openbsc) the code would not stop the timer
but free the datastructure. This can lead to a clear segfault
when the timer has expired. Create a "free" function which is
responsible to detach the handover structure, stop the timer
(which is idempotent) and free the structure.
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Timing advance is stored inside lchan structure, so it is removed from
arguments. This is useful, if other actions are required prior calling
rsl_chan_activate_lchan. (like deactivating PDCH first)
The "shifted TA value" that is required by BS11 is now calculated inside
rsl_chan_activate_lchan and not by each user.
[Rebased by Holger. So some hunks were skipped as the patch
depended on Jolly's HO code]
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E1 based BTS use TRAU muxer to decode TRAU frames. After changing
channel from one timeslot to another (due to handover or assignment),
the TRAU muxer must be updated. The call reference of the call is
disconnected from the old channel and connected to the new channel.
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This was reported by Kevin when he was testing handover. The problem
is the order of the signal handlers for S_ABISIP_CRCX_ACK. Right now
the handover signal handler is called before the one inside the libmsc
gsm_04_08.c. This means S_HANDOVER_ACK is signalled _before_ there is a
rtp socket created for the channel. The result is that the MDCX will
never be sent and the called will not be properly switched _after_ the
handover detection.
I do not want to play with the order of signal handlers, remove the
CRCX ack handling from the handover_logic.c and force the NITB (and
later the BSC) to check if the lchan is involved with a handover and
do the switching in there. This means right now we do what two signal
handlers did in one.
Reproduced and tested with the FakeBTS Handover test.
Log message:
<0004> abis_rsl.c:1954 (bts=1,trx=0,ts=3,ss=0) IPAC_CRCX_ACK ...
<000c> gsm_04_08.c:1400 no RTP socket for new_lchan
<001a> rtp_proxy.c:533 rtp_socket_create(): success
<001a> rtp_proxy.c:615 rtp_socket_bind(rs=0x48703c8, IP=0.0.0.0): ...
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Done with the semantic patch:
@rule1@
expression E;
expression F;
@@
- lchan_release(E, F, 1);
+ lchan_release(E, F, RSL_REL_LOCAL_END);
@rule2@
expression E;
expression F;
@@
- lchan_release(E, F, 0);
+ lchan_release(E, F, RSL_REL_NORMAL);
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abis_nm.c: In function ‘abis_nm_get_attr’:
abis_nm.c:1380:11: warning: unused variable ‘cur’ [-Wunused-variable]
abis_nm.c: In function ‘ipac_parse_bcch_info’:
abis_nm.c:2588:11: warning: variable ‘len’ set but not used [-Wunused-but-set-variable]
bts_nokia_site.c:1310:6: warning: variable ‘constructed’ set but not used [-Wunused-but-set-variable]
bts_nokia_site.c: At top level:
bts_nokia_site.c:1364:12: warning: ‘dump_elements’ defined but not used [-Wunused-function]
gsm_04_08.c: In function ‘mm_rx_loc_upd_req’:
gsm_04_08.c:521:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
osmo_msc.c: In function ‘msc_ciph_m_compl’:
osmo_msc.c:122:7: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
bts_hsl_femtocell.c: In function ‘hslfemto_bootstrap_om’:
bts_hsl_femtocell.c:101:11: warning: variable ‘cur’ set but not used [-Wunused-but-set-variable]
bts_hsl_femtocell.c: In function ‘hsl_drop_oml’:
bts_hsl_femtocell.c:232:21: warning: variable ‘line’ set but not used [-Wunused-but-set-variable]
handover_logic.c: In function ‘ho_chan_activ_ack’:
handover_logic.c:197:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
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... it might well a completely non-ho-related establishment
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Summary of changes:
s/struct counter/struct osmo_counter/g
s/counter_inc/osmo_counter_inc/g
s/counter_get/osmo_counter_get/g
s/counter_reset/osmo_counter_reset/g
s/counter_alloc/osmo_counter_alloc/g
s/counter_free/osmo_counter_free
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Summary of changes:
s/signal_cbfn/osmo_signal_cbfn/g
s/register_signal_handler/osmo_signal_register_handler/g
s/unregister_signal_handler/osmo_signal_unregister_handler/g
s/dispatch_signal/osmo_signal_dispatch/g
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Summary of changes:
s/struct timer_list/struct osmo_timer_list/g
s/bsc_add_timer/osmo_timer_add/g
s/bsc_schedule_timer/osmo_timer_schedule/g
s/bsc_del_timer/osmo_timer_del/g
s/bsc_timer_pending/osmo_timer_pending/g
s/bsc_nearest_timer/osmo_timers_nearest/g
s/bsc_prepare_timers/osmo_timers_prepare/g
s/bsc_update_timers/osmo_timers_update/g
s/bsc_timer_check/osmo_timers_check/g
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This was done with sed on the files.
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libosmogsm is a new library that is distributed in the libosmocore.
Now, openbsc depends on it. This patch gets openbsc with this
change.
This patch also rewrites all include path to the new
osmocom/[gsm|core]
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
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... and make sure tests work again after restructuring
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