Commit Graph

18 Commits

Author SHA1 Message Date
Neels Hofmeyr bf7099262a dyn ts, bts_ipaccess_nanobts.c: init PDCH on Chan OPSTART ACK
Sending PDCH activation upon RSL bootstrap is too early. Introduce OPSTART ACK
handling to call dyn_ts_init() only when the dynamic timeslot is indeed ready
to receive a PDCH activation.

Related: OS#3205
Change-Id: Icf6e25ff068e8a2600562d52726ead65e864ec02
2018-05-05 01:50:49 +02:00
Stefan Sperling cda994edb2 fix handling of state changes in acc ramping
Take both the operative and administrative states into account
when deciding whether to start ACC ramping, and examine old/new
state values to avoid triggering ramping for a no-op state change.

This requires a fix to gsm_trx_lock_rf(): This function overwrote
the old administrative state of a trx before enqueuing a state
change request towards the BTS.
The BTS will confirm this request with an ACK, at which time a
signal is generated which the ACC ramp code listens to. We must
not overwrite the old state value until the signal has been handled,
otherwise the signal handler cannot tell what the old state was.

Tested with a virtphy setup, nanobts, and osmo-bts.

Change-Id: Ib3291439655598fb5ddc891a3e4cc35b0bad250f
Related: OS#2591
2018-04-13 14:42:57 +02:00
Neels Hofmeyr da5b09a08e cosmetic: abis_nm: use osmo_cell_global_id, parse 3-digit MNC
Instead of a local redefinition, use osmo_cell_global_id.

This change is cosmetic because the decoded PLMN is currently actually never
used.

Change-Id: I38ac98a4d25159cfd4f686efbfbaf8f00625a6d8
2018-03-22 04:13:09 +00:00
Harald Welte fe00edae7f abis_nm: Improve and fix OML logging
This code is among the oldest surviving parts of old bsc_hack/OpenBSC,
and it shows.  We used arcane constructs to puzzle together log
messages, attempting to switch the log level between a LOGP and LOPGC
[which doesn't work], not properly used log levels in general, ...

Let's fix this up by using the new abis_nm_dump_foh() function
introduced in libosmocore I9b2c2afec28882b817d104d5b062651ade7aadd8

Change-Id: Ibd757836c39edd2d1ce59e528342f8923a9e75e4
2018-03-17 19:15:22 +01:00
Philipp Maier 8c498fc26b gsm_data: use feature list from libosmocore
In order to avoid code duplication the feature list (bit masks) and
the desciptive value strings as well as the function to set and get
the feature bits have been moved to libosmocore.

- use feature list functionality provided by libosmocore

Depends: libosmocore Change-Id Id0c35aef11aa49aa40abe7deef1f9dbd12210776
Change-Id: I3e80517539cc5d0e5d8189d434a5e3cc0fdea1a0
2018-03-12 10:18:05 +00:00
Neels Hofmeyr 4d358c00e1 gsm48_ra_id_by_bts(): struct gsm48_ra_id* instead of buf
Move from using deprecated gsm48_construct_ra(), which uses a buf, to
gsm48_encode_ra(), which uses a gsm48_ra_id argument. Pass struct gsm48_ra_id
around instead of a buf.

struct gsm48_ra_id is the "encoded" representation of the bytes in a typical
MCC-MNC-LAC-RAC (04.08 Routing Area Id IE, 3GPP TS 24.008 § 10.5.5.15). Using
the struct spares using magic numbers for byte offsets.

In the process, fix a sanitizer warning for unaligned access by using memcpy()
instead of pointer assignment:

  osmo-bsc/src/libbsc/abis_nm.c:2857:27: runtime error: store to misaligned address 0x7ffe8e0d6695 for type 'uint16_t', which requires 2 byte alignment

Note that (besides removing a now unnecessary cast) the gsm0408_test and
abis_test tests of RAI / CGI encoding remain stable, which indicates that the
new code is still correct.

Change-Id: I0d3908fb8ca1e2e669d257b5d59b40675fa85d06
2018-03-05 05:35:54 +01:00
Neels Hofmeyr cc6240aeb2 libcommon: eliminate talloc_ctx.c
Interestingly enough, talloc_ctx_init() actually had not a single caller.

While dropping it, see to it that the few contexts that are actually used in
osmo-bsc.git are indeed initialized in all the main scopes.

Also initialize two void* ctxts as NULL explicitly, to allocate under the NULL
context in case some main scope forgets to branch it off another root context.
(That's bsc, fle and paging, all others actually come in from other libraries.)

Change-Id: I344a3d07e146999e154824837ed95db2b9879356
2018-02-14 12:15:40 +01:00
Stefan Sperling 73acbca50f Make RSL connection attempts time out.
If a BTS/TRX does not respond to the "IPA RSL Connect" command,
pretend that the BTS has sent a NACK for the connection.

To ensure that osmo_timer_del(&trx->rsl_connection_timeout) is not called
before this timer is initialized with osmo_timer_setup(), the E1 layer now
drops incoming RSL messages from a BTS/TRX in LOCKED administrative state.

We cancel the timeout if we receive an RSL Connect ACK or NACK from the BTS,
and if the underlying E1 link does down.

While here, add a missing message buffer free() in bts_isdn_sign_link().
The callers do not free it.

Change-Id: Ia72b65a0f15f47dcb8a6f944f6c3695a4a64b923
Related: OS#2716
2018-02-13 18:08:28 +01:00
Max 115e2672fe OML: expand status reporting checks
* check GPRS state: if GPRS is enabled for the BTS but NSE, CELL or both
  NSVC are locked than report it as degraded
* check TRX usability: use already available function to check that TRX
  is actually usable when reporting OML status via CTRL
* fix tests linking: libbsc is using gsm48_create_mm_serv_rej() which is
  defined in libcommon-cs but neither libbsc itself nor tests using it
  are actually linked against libcommon-cs

Related: OS#2486
Change-Id: I9dce1d3b0cabe149a90cfca58a3fe55f8d6a72bc
2017-12-10 14:18:41 +00:00
Neels Hofmeyr 27cd0fe430 compiler warnings: constify in abis_nm.c
Constify in- and output arguments for Parse Attribute Response Info chain to
avoid compiler warnings, and more clearly indicate const data in the first
place.

Change-Id: Ib7d069fe1fda69e89dfd171cd76b1ed6d6db0ceb
2017-11-29 17:37:18 +00:00
Max d0ff694cb9 cosmetic: tighten function type signatures
* change return type to bool
* constify parameters

The nm_is_running(), trx_is_usable() and ts_is_usable() always return
boolean value and are always used as such anyway. The also do not change
their parameters.

Change-Id: I6a572fc78371c69f5308edbad0ebe15e143d0505
2017-11-29 14:23:13 +00:00
Max aa954cd10f OML: consider administrative state when reporting
Report state as degraded if BTS or any of its TRX are administratively
locked.

Change-Id: Ic9ee998d972ca870ce5d039c3ed95edb6ba8b36f
Related: OS#2486
2017-11-29 12:18:02 +01:00
Max 36bf7974ab Check OML state per-BTS
To properly decide if a given OML link is degraded we have to use
BTS-specific information about MO state.

* move check function into BTS-specific part
* add generic wrapper

Related: OS#2486
Change-Id: Iddc7a4d20fbb95a6566eed1487a12733e5adb9e2
2017-11-02 15:58:08 +01:00
Max 3d049d27f5 OML: consider RSL link state
OML link state is available via vty ("sh bts 0" command) and
ctrl ("oml-connection-state" RO variable).

When showing OML link state, take into consideration RSL link state as
well: if OML is up but RSL is missing show it as degraded.

That's implemented via BTS model-specific functions (currently Sysmo- and
Nano- BTS only)

Change-Id: I5952fc59e4d82e0aa627ad91d20f964d9559a4c4
Related: OS#2486
2017-10-09 18:42:15 +02:00
Max be356ed32f Make TRX rf locking more visible
* log administrative state transitions
* log what's caused it
* while at it, mark boolean variable as such

Change-Id: I3e25a19fac4d0b4886d825c9876771b1f66efe58
Related: SYS#3864
2017-09-08 08:31:02 +00:00
Neels Hofmeyr c01647914b move include/openbsc to include/osmocom/bsc
Change-Id: I39e7b882caa98334636d19ccd104fd83d07d5055
2017-09-06 16:26:13 +02:00
Max e3dbd5d33a Fix BTS attribute requests
* fix BTS numbers: use 0 to indicate given BTS and 0xFF to indicate all
  BTS' as it's explained in 3GPP TS 52.021 §9.3.
* only request attributes from supported (OsmoBTS) types

Change-Id: I8f43055c38000248033a8ff9ddaf0910d68d794b
Related: OS#2317
2017-08-27 03:52:45 +02:00
Neels Hofmeyr 218e4b4aa0 move openbsc/* to repos root
This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7
2017-08-27 03:52:43 +02:00