The reported feature vector may contain new features the BSC is
not aware of. Report each of them individually as NOTICE.
It's normal when some BTS feature is considered as not supported
by the BSC, but a BTS reports that it is - do not log this.
Change-Id: I2f925bcdb010cb10d074bf7c82619e3ae1f8818b
There's no real need to retrieve the trx before passing it to the
function, we can do that in the function itself and hence also simplify
the function itself.
Related: OS#4870
Change-Id: I7181510c5021ff2712c09ebc6ec8b13fdd8e8dc2
The only real 1-1 relationship between BTS NM objects is the one between
GPRS Cell and BTS (which is actually a BTS cell).
In our current osmo-bts implementation we don't care much since we only
handle 1-cell BTSses, but let's make the data structure organization
more generic.
Implementation notes:
The gsm_bts_sm is moved to its own file, APIs to allocate are added and
the new public object is hooked correctly in the allocation process of
osmo-bsc.
Change-Id: I06461b7784fa2a78de37383406e35beae85fbad8
During the A-bis/OML bootstrapping, osmo-bsc sends Opstart to the
Radio Carrier MO twice. The first Opstart is triggered by the
State Changed Event Report, originated by the Radio Carrier itself.
The second is triggered by Software Activated Report.
According to 3GPP TS 12.21, figure 2, we shall send it only once,
after the "Attribute setting" step. Therefore, the first Opstart
is premature, and we shall not send it.
Related: SYS#5063, OS#4755
Change-Id: If69393551117266ecb726d8961153560b2b3cc59
In the big mess of gsm_data we reached a point where we have multiple
functions doing the same thing, most probably because it's hard finding
stuff in there. Let's drop one of them (the one which less callers) and
move it to bts.*, where it belongs.
Change-Id: I9071a0ab250844619280fbe2be63ed99f2c87eb1
Place all code related to the object into the related file.
Having all the data model in one file made sense in early stage of
development to make progress quickly, but nowadays it hurts more than
helps, due to constantly growing size and more and more bits being
added to the model, gaining in complexity.
Currently, having lots of different objects mixed up in gsm_data.h is a hole
of despair, where nobody can make any sense were to properly put new stuff
in, ending up with functions related to same object in different files
or with wrong prefixes, declarations of non-existing functions, etc.
because people cannot make up their mind on strict relation to objects
in the data model.
Splitting them in files really helps finding code operating on a
specific object and helping with logically splitting in the future.
Change-Id: I00c15f5285b5c1a0109279b7ab192d5467a04ece
There are a number of OML messages which are not seen on IP based
BTSs. Those are perfectly normal and expected on E1 based BTS.
Change-Id: Icd87fc9f3652b21f9d569af2572d080c9ac89e8b
Closes: OS#4665
Found while playing with "rf_locked 1" on a 2TRX setup with channel
allocator descend. After applying the setting, the 1st TRX is still used
to allocate the channels. After this patch is applied, the BSC correctly
allocates channels from TRX0.
Change-Id: I5201d2749363c9cbd0706177bde09117b163cbe3
This message may contain optional IEs (HSN, MAIO, ARFCN list),
so we cannot know the final length in advance. Let's set both
msg->{l2h,l3h} pointers and use msgb_l3len() to get the length.
Change-Id: I948ad4b847921324794a6eabd95d5583324da6e4
Related: OS#4545
3GPP TS 12.21 defines coding of 'ARFCN List' attribute as follows:
+---------------------------+--------------------+
| Attribute Identifier | 1st octet |
+---------------------------+--------------------+
| Length | 2-3 octets |
+---------------------------+--------------------+
| ARFCN1 | 4-5 octets |
+---------------------------+--------------------+
| ... | ... |
+---------------------------+--------------------+
| ARFCNn | (n * 2 - 3) octets |
+---------------------------+--------------------+
so this is basically TL16V, where L16 is the length of V.
In the Siemens dialect of OML coding rules are different though:
+---------------------------+--------------------+
| Attribute Identifier | 1st octet |
+---------------------------+--------------------+
| ARFCN count | 2nd octet |
+---------------------------+--------------------+
| ARFCN1 | 4-5 octets |
+---------------------------+--------------------+
| ... | ... |
+---------------------------+--------------------+
| ARFCNn | (n * 2 - 2) octets |
+---------------------------+--------------------+
so this is TCV, where C is the amount of ARFCNs in V.
This change fixes encoding of 'ARFCN List' for other dialects,
in particular encoding of the 'Length' field (1 vs 2 octets).
I verified the results in Wireshark (generic 3GPP TS 12.21
and ip.access dialect), everything looks good.
Change-Id: Iec1826f55459ac8e9355328a1a6bb0949874db60
Related: OS#4545
The value of the feature vector can not only be greater, but also
shorter than size of the buffer! This would potentially result
in a buffer overrun. Let's fix this.
Change-Id: I65e3228022865ea73de2e4821985df3097b9448b
Save OML failure reports from each BTS. Add a VTY command to display them
conveniently and optionally clear the list.
OsmoBSC> show bts 0 fail-rep
[2020-03-23 14:51:22] Type=processing failure, Severity=minor failure, Probable cause=Manufacturer specific values: Software warning, Additional text=test message sent from VTY
[2020-03-23 14:51:19] Type=processing failure, Severity=minor failure, Probable cause=Manufacturer specific values: Software warning, Additional text=test message sent from VTY
Related: OS#1605
Change-Id: I18aa17a721cd5eb1c98926dc2367229c0a50bc78
Separate raw input parsing from handling the failure report. A follow-up
patch will use the new parsing function to print saved failure reports
to the VTY.
While at it, put struct tlv_parsed inside struct nm_fail_rep_signal_data
instead of a pointer, so we don't need an additional alloc. Also add
error handling to the abis_nm_tlv_parse() call.
Related: OS#1605
Change-Id: Ia51004faf620aa4d40435d58c70d758c9d0054d8
Use the extra bts pointer instead of mb->trx->bts, which does not point
to an allocated bts.
Related: OS#1605
Change-Id: Ie61512f5690763fa380bdf0e7fb4763dbda019d2
Let's not just pass around the raw msgb, but also all other metadata,
such as the decoded parts of the TS 12.21 message.
As there's no current consumer of that signal, this creates no
compatibility issues.
Change-Id: I5d4d9d422b4e23348ffbe69c6e87a31d5574f90d
After sending of NM_MT_IPACC_RSL_CONNECT message, we start a timer,
and stop it on receipt of NM_MT_IPACC_RSL_CONNECT_{ACK,NACK}. When
running a multi-trx setup, one can see the following warnings:
DRSL NOTICE abis_nm.c:2852 (bts=0,trx=1) RSL connection request timed out
DRSL NOTICE abis_nm.c:2852 (bts=0,trx=2) RSL connection request timed out
even despite NM_MT_IPACC_RSL_CONNECT is actually being acknowledged.
The problem is in abis_nm_rx_ipacc(): we cannot just use sign_link->trx,
because the message itself was received over the OML link, so this
pointer always gives us C0/TRX0. Instead, we must find a TRX by its
number from the FOH header using gsm_bts_trx_by_nr().
Change-Id: Ib4b9a198da11c88a51cfa78ffb7e7235a6365ef4
The LOGPC() is usually used for continuation when printing complex
logging messages (e.g. where using format string is not enough).
In this case, nothing is being printed before calling LOGPC(), so
the logging messages appear without the meta info (time-stamp,
level, category, etc.), for example:
BTS 0 reported connected PCU version 0.7.0.1-2585-dirty
Change-Id: I868633ad3e50f2cb3ebfb2c566d16c4710f17563
It's quite ugly to have manual "bts=%d" printf-statements all over
the BSC code. Let's change this to use shared logging helper functions
all over the place, whenever we need to log something related to one
BTS or one TRX.
This can also help us as the first step to later add alternative logging
of BTS identities, e.g. by printing the Cell Global Identifier or
LAC+CI, or even a human-readable/vty-defined 'name' of the BTS, rather
than its numeric bts number. With this change in place, we can
introduce such changes at a single location in the code.
Change-Id: I4a7814d164384eecfb6913c31802cf2faead6e6c
the 'p_val' variable should represent he 'probabl cause value' and
nothing else. Let's use other local variables for other things.
Change-Id: Ie79279fc1d42cd57e7478820493b250fe38c2f4f
Neels Hofmeyr
Vadim Yanitskiy
Pau Espin
Harald Welte
Oliver Smith
Martin Hauke