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The new structure divides the code into a number of libraries
for the BSC core functionality, MSC core functionality, Abis transport,
TRAU and other bits.
This doesn't introduce any functional code change but simply moves
around files and alters Makefile.am accordingly.
Next step would be to disentangle a lot of the inter-library
dependencies and make the individual bits of code more independent.
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bsc_init.c was a big mess even only for two supported BTS models,
so before adding more BTS types, this needs a cleanup.
All the BTS specific code from bsc_init.c has now moved into
bts_{siemens_bs11,ipaccess_nanobts}.c
This has required that input_event() and nm_state_event() get both
converted to proper libosmocore signals instead of referencing external
symbols.
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This introduces a new 'e1_input' config node with a command to be
used like:
e1_line 0 driver misdn
This allows us to have different input drivers in the future
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This helps us to further disentangle the misdn driver and e1_input
in preparation of DAHDI support.
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The reason for this is quite simple: We want to make sure anyone
running a customized version of OpenBSC to operate a network will
have to release all custom modifiations to the source code.
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Currently the nanoBTS bootstrap code requires a high delay
otherwise we are not bringing the device up properly. Changing
the init code turns out harder than it seems like. So this is
a workaround for that to allow a high speed RSL/OML connection
after the bringup.
The line driver can have a default TS delay. It is set to the
current default for the nanoBTS and the BS11. For the ipaccess
case we will set the delay lower for the RSL connection and
inside the ipaccess-config we can set it low right away to
have fast firmware flashing and such.
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In some cases, we get a DL_INFORMATION_IND with a wrong channel
number, and only in the DL_ESTABLISH_IND we will see the real
channel number that is to be used for this (TEI, SAPI) tuple.
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This library is intended to collect all generic/common funcitionality
of all Osmocom.org projects, including OpenBSC but also OsmocomBB
The library currently includes the following modules:
bitvec, comp128, gsm_utils, msgb, select, signal, statistics, talloc, timer,
tlv_parse, linuxlist
msgb allocation error debugging had to be temporarily disabled as it depends on
'debug.c' functionality which at the moment remains in OpenBSC
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We use the same construct in e1_inpit.c, use it here too.
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this was missing from commit a08a9acdb6bff0ee4fdf0f58b78b6525017a1f9f
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In order to use multiple mISDN cards, we need to:
1) move driver initialization out of line initialization
2) make sure we allow partial (virtual) E1 cards with < 30 B-channels
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This reportedly fixes the problem that we didn't see MEASurement REPort
messages from the BS-11.
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when we generate a talloc report (SIGUSR1), we can now see which system
allocated a given msgb, this helps memory leak debugging
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