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T3109 is started when the SACCH is deactivated. It is stopped when
the phones sends the DISC/UA/UM on LAPDm for the main signalling
link. In case of timeout the abnormal release procedure will be
initiated. Make sure to not issue the SACCH Deactivate twice to
avoid confusing the equipment.
This is still not fully spec compliant. In case of a timeout the
abnormal release handling will be started which involves starting
T3111+2. The error handling should be split out of the rf channel
release method, e.g. lchan_release should be called and check if
the channel release was already initiated.
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If the CHAN ACTIV is NACKED we set the state backto NONE. This is
problematic as our channel allocator will allocate from the front
or from the back and if the channel is early in the list it might
cause permanent failures. Introduce a BROKEN state and use it when
the channel activation is failing for an unknown reason. Copy the
cause so it can be inspected later.
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* Release all channels with SAPI > 0 with the "local end release"
(as of NOTE 1 of GSM 04.08).
* No need to wait for all SAPIs to be torn down and the normal
REL_IND/REL_CONF will call rsl_handle_release and the channel
should be released.
* Update the documentation
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The API with 0 and 1 as legal values is hard to understand. Use the
recently introduced enum values instead.
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Include the LAPDm header file so the size of struct lapdm_channel
is known and gsm_data_shared.h can be included by itself.
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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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Call the channel by the right name.
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We want to have multiple MSCs but we also have some data
that is only present on a per BSC basis. Right now the
MSC data is not allocated with talloc, so we have some
change in the talloc contexts.
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Use unsigned ints for the bitfield.
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Use the name of GSM 08.58 for the release mode.
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The UTC offset from the operating system will be used by default to
calculate the NITZ in MM INFO. However, a "timezone" vty command is
added at the BTS level, allowing BTS-specific overrides, e.g. in case
BTSs are distributed accross multiple timezones.
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do_reset was not initialized anywhere anymore, so the reset was never
triggered. It's now fixed and we add an option to skip it in the
config so that when in production, you can restart without config
changes quickly.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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gsm_data_shared.h references structures defined in abis/e1_input.h
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Move the regexp parsing code from the NAT to libcommon as it will
be used by the NAT and BSC code. This also adds the #include <regex.h>
include to gsm_data. This header should be split up.
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This is a big patch that ports openBSC over libosmo-abis.
Sorry, the changes that are included here are all dependent
of libosmo-abis, splitting them into smaller pieces would
leave the repository in some intermediate state, which is
not desired.
The main changes are:
- The directory libabis/ has been removed as it now lives in
libosmo-abis.
- new configuration file format for nanoBTS and HSL femto, we
need to define the virtual e1_line and attach it to the OML
link.
- all the existing BTS drivers (nanoBTS, hsl femto, Nokia site,
BS11 and rbs2000) now use the new libosmo-abis framework.
- use r232 input driver available in libosmo-abis for bs11_config.
- use ipa_msg_recv instead of old ipaccess_read_msg function.
- delete definition of gsm_e1_subslot and input_signal_data.
These structures now lives in libosmo-abis.
Most of this patch are deletions of libabis/ which has been
moved to libosmo-abis.
This patch also modifies openBSC to use all the new definitions
available in libosmocore and libosmo-abis. In order to do that,
we have replaced the following:
- DINP, DMI, DMIB and DMUX by their respective DL* correspondences.
- SS_GLOBAL by SS_L_GLOBAL
- SS_INPUT by SS_L_INPUT
- S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN
- SS_INPUT by SS_L_INPUT
- S_INP_* by S_L_INP_* sub-signals
- E1INP_NODE by L_E1INP_NODE vty node
This patch has been tested with:
- one nanoBTS
- the HSL femto with the examples available under libosmo-abis
- BS11 with both dahdi and misdn drivers.
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The timer callback will simply reset the lchan state to NONE in order
to prevent channels getting stuck in 'activation requested' or
'deactivation requested' states.
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This includes the MetroSite, but also other Nokia BTS models.
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When we loose the A-bis link, we should properly re-set the
administrative, operational and availability state of all MOs
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TODO: move all of the BTS side per-lchan data behind a 'void *role'
pointer like 'struct gsm_bts'
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... this way osmo-bts can use them
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This facilitates the use of gsm_data.c from osmo-bts
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This allows us to configure a TSC for each timeslot, not just one globally for
the entire BTS.
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... as a common wrapper around nm_attr and nm_state
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gsm_data.h is the part that contains BSC-specific data, whereas
gsm_data_shared.h is now shareda with osmo-bts
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