Commit Graph

6396 Commits

Author SHA1 Message Date
Harald Welte 7c29b094d5 BSC: Add "show subscriber all" command
This command lists the currently-active bsc_subscr and their contents,
the format looks like this:

OsmoBSC> show subscriber all
 IMSI             TMSI      LAC    Use
 001010123456789  ffffffff  65534  3
 001010100000001  a1b2c301  65534  1

Change-Id: Ib9c0c31a0a5a91b42fd832fa0df3460b1a440733
2017-12-22 21:48:55 +01:00
Max 09653a0a19 Enable sanitize for CI tests
Change-Id: I86f8f29dbe13869fa4a0ac1f55ff697a8975525b
2017-12-21 17:19:45 +01:00
Philipp Maier 57d4fe7157 mgcp: validate rtp connection data in MGW response (ip/port)
Currently the pasing results from the RTP ip/port are fed into
inet_addr without checking the results.

Check the return code of inet_addr to be sure that the IP-Address
got properly decoded.

Change-Id: I1d0aa7e9b8480e1bef57269e3904399cb99815bb
2017-12-20 11:57:19 +01:00
Philipp Maier 75f2c8d47f mgcp: cancel transactions on timeout
when a transaction to the MGW times out, then the context
information is freed. Unfortunately the client is not informed
about this and will try to execute the callback anyway.

explicitly cancel the transaction in order to prevent access
to already freed data structures.

Change-Id: I40794dff7d10e2b6a96863a2da7e9fbd5662a1bf
2017-12-20 11:48:18 +01:00
Harald Welte 472275c301 remove unused 'lac' member of 'struct gsm_subscriber_connection'
This field was used in write-pnly mode, i.e. set but never read.

Change-Id: I319945538fd3e3bc5cf3b9d82533641cb8ba5256
2017-12-19 18:58:51 +01:00
Harald Welte 4a8ebc8394 gsm_data.h: Document all fields of gsm_subscriber_connection
Change-Id: I429fe7817f075d0794645d37f5ea11b104102ba0
2017-12-19 18:58:51 +01:00
Harald Welte ea0c3203db osmo-bsc: Move user plane/voice related bits into sub-structure
This clarifies which members of the struct are for what.

Change-Id: I618822e6f2d48adce25f9df5c25acbce7c858412
2017-12-19 18:58:51 +01:00
Harald Welte ca494f385e osmo_bsc.h: document every field in 'struct osmo_bsc_sccp_con'
Change-Id: I674ed61a22fad5cc09c45128dbc73474893aefb6
2017-12-19 18:58:51 +01:00
Harald Welte 95464c78fd Remove unused struct osmo_bsc_sccp_con member sccp_queue_size
Change-Id: Ibc4b8f3776c35df7e81252efb78ec740a371de7f
2017-12-19 18:58:22 +01:00
Harald Welte 45f3eccaba osmo_bsc_bssap.c: Spelling fixes in comment
Change-Id: I32b2d08bf25cd2d343755ac8491e4f5f758ccee6
2017-12-19 17:53:14 +00:00
Harald Welte e94d7d1bdf remove libosmo-sccp dependency for osmo-bsc
libosmo-sccp is the old sccp-lite-focused SCCP implementation that we
used before libosmo-sigtran was created.  The new osmo-bsc in this
repository is using libosmo-sigtran and shouldn't be using parts of
libosmo-sccp anymore.

We only keep it around in configure.ac and Makefile.am for osmo-bsc_nat,
which is not even built in this repository anymore (or 'again yet'?)

Change-Id: I8f274be7d196cd7a5b1ec9ada949130fb06e984d
2017-12-19 17:53:14 +00:00
Harald Welte 3edbd0e065 Remove some more dead code
Change-Id: I919bffe88babd90227c89abd4434322965c32ebb
2017-12-19 17:53:14 +00:00
Harald Welte 8311a81bae Remove bogus MM INFO configuration
The network name and other MM INFO is controlled by the MSC, not the BSC.

Change-Id: I1cbf72fc50cff29e7c1633ba752cbf15b4b84c58
2017-12-19 17:53:14 +00:00
Harald Welte c499e5c62e Remove bogus vty config for LU reject cause
The LU reject cause (like anything MM related) is under control of
OsmoMSC, not BSC.

Change-Id: I559ae31d67726845c9699c8b6127e21c6f63ace6
2017-12-19 17:53:14 +00:00
Harald Welte faacb090f6 Remove unused RRLP options/codec
RRLP is handled in OsmoMSC after the split from NITB, so let's remove
any bogus VTY commands left over in the BSC.

Change-Id: Ib626f43a3a3ca69dfc127afe5832eb58f7fb6a38
2017-12-19 17:53:14 +00:00
Harald Welte d9956d91ba Remove dead code left over from NITB split
There still is a lot of dead code that we inherited from the NITB
days, let's remove more of it.

libtrau will be re-introduced as part of osmo-mgw later.

Change-Id: I8e0af56a158f25a4f1384d667c03eb20e72df5b8
2017-12-19 17:53:13 +00:00
Max f8dc526207 Remove unneeded .py scripts
The ipa.py has been moved to osmo-python-tests as osmo_ipa - use it for
vty and ctrl tests instead of local copy. The soap.py and twisted_ipa.py
are not BSC-specific: leftovers from repository split which are now
available in osmo-python-tests as well.

Change-Id: Ia4285b18b152b070c148228604d1e61a8adedba1
2017-12-19 18:08:46 +01:00
Max 4ab7268a90 Fix tests after rate_ctr change
Recent change lin libosmocore disallow registering rate_ctr with the
same name and indexing multiple times. To accommodate to this:

* allocate network struct once and use it for all tests
* deregister rate_ctr group after each test
* free bts struct after each test

Related: OS#2757
Change-Id: Ie1537a1ee9ee812eaaf9f58dc4bc86d4add8c31f
2017-12-18 22:13:36 +01:00
Neels Hofmeyr 7abe7ae2d0 fix bssmap_handle_cipher_mode()'s encryption decision
Properly match up any A5/N with the MSC's list of permitted algos.

Properly set the reject cause in case of mismatching algorithm choices.

Actually allow choosing A5/1 thru 3 as configured on the VTY, by passing
a5_encryption through to gsm0808_cipher_mode() (instead of a hardcoded 1).

Properly handle failure rc of gsm0808_cipher_mode() by sending a reject
message.

Cosmetically clarify which GSM0808_IE_ENCRYPTION_INFORMATION bits mean what by
means of local variables; add some comments on expected encryption formats; add
comment that the BSC should be able to have more than one a5_encryption.

Related: OS#2745 OS#2755
Change-Id: Ide8a615905555e35be4584b458d4d40345686175
2017-12-14 21:39:49 +01:00
Neels Hofmeyr 8c6301cf0d debug log: log Cipher Mode info upon sending down RSL/A-bis
Change-Id: I7f7ec44887f6b40fdce8d348e9e9bd200fe0b689
2017-12-14 21:39:49 +01:00
Neels Hofmeyr 64c2920620 log typo fix in gsm0808_cipher_mode()
Change-Id: I3f6d138df9ddc9c6560d04e2e8baa1f3a50a164f
2017-12-14 21:39:44 +01:00
Harald Welte 00d64fd5ec Add new "chan:mode_modify_nack" counter to count RSL MODE MODIFY NACK
Those NACKs shouldn't happen in production, and if they do, you probably
want to have a more persistent figure than a line in the log file about
it.  Having counters allows the user to monitor this efficiently.

Change-Id: Ic82c6baaf4cb88d07bc5cdc200f8279cf130f396
2017-12-14 15:03:43 +01:00
Harald Welte 581398afab Add a new counter "rsl:ipa_nack" to count number of IPA related NACKs
Those NACKs (CRCX/MDCX/PDCH_ACT) shouldn't happen in production, and
if they do, you probably want to have a more persistent figure than
a line in the log file about it.  Having counters allows the user
to monitor this efficiently.

Change-Id: I5edf979c9a2b4c9a5a60eef9f66c26da54f2bddf
2017-12-14 15:03:43 +01:00
Harald Welte 62d9cb0529 Add new per-BTS "rsl:unknown" counter to count unknown RSL messages
Change-Id: I268f222140fa5783e1d19f81fbd45614aaa4b8c4
2017-12-14 15:03:43 +01:00
Harald Welte 4f59892ce6 Add per-BTS rate_ctr for total + failed number of RSL CHAN_ACT
Change-Id: I471b598af194dee78ebaa3414b6290c72d9bbcff
2017-12-14 15:03:43 +01:00
Harald Welte 6e59ced031 Reduce T3113 default from 60s to 10s
Our T3113 timer default of 60s was set early in the development of
OpenBSC, where we didn't really know what values to use and used
excessively large/safe values. Paging the same MS for 60 seconds (even
if there's no paging response) will however create a lot of PCH load for
no good reason.

It seems there's no clear guidance as to what the value should be. Other
implementations use something in the order of 10 seconds (OpenBTS,
yateBTS), which seems more realistic. THe Siemens BS-11 has a default of
5 seconds.

Let's be conservative and go to 10s as a default, which is already 6
times less potential PCH usage than our default so far...

Closes: OS#2756
Change-Id: If9c8441939c6fdcf6e2b9ede8cc576eb86296209
2017-12-14 13:06:33 +01:00
Harald Welte cf9d431e89 libbsc: paging: more reasonable (and detailed) paging statistics
Counting the number of T3113 expirations (one per subscriber per BTS)
vs the number of paging attempts (Bsc global) is a ueseless figure,
as you cannot relate each other.

We count on the BSC level:
	* how many PAGING we received from the MSC (total)
	* how many of those were for cells/LACs we don't serve
	* how many of those resulted in PAGING RESPONSE

We count on the BTS leve:
	* how many PAGING CMD we sent to the BTS (total)
	* how many of those we ignored as we were already paging
	* how many of those resulted in PAGING RESPONSE
	* how many were expired due to T3113 expiring

Change-Id: I410bbcbb2621f95f11238f7a5da01ab438f5fee1
2017-12-14 13:06:33 +01:00
Harald Welte 2ed22c83df Fix per-BTS counter group index
I discovered that the per-BTS counter group could only be requested
for BTS 0 but didn't work for any further BTSs.

This is a bug introduced in Change-Id I5bd9e6e333b1c396beae46630986b17e7f8b82ef
where we introudce the per-BTS counters,t but allocate all of them with
index '0'.

Change-Id: I1b56f8d7b47597ed263e6808074483edca0895de
2017-12-14 13:06:33 +01:00
Philipp Maier 66d2ef81b6 cosmetic: osmo_bsc_mgcp: improve comments
Make the comments for struct mgcp_ctx more expressive

Change-Id: Ie80b4915055e3f944ff1870c38e3609197ab72b2
2017-12-13 20:20:15 +00:00
Philipp Maier 256d09d1f2 paging: paging_flush_bts: be sure pending_requests is initalized
The BSSMAP reset causes the paging requests to be flushed. When
this happens right after startup then calling paging_flush_bts()
may be called when the list bts->paging.pending_requests is not
yet initalized, which causes a segfault.

Call paging_init_if_needed() to be sure that the list is
inizalized (like the other functions also do)

Change-Id: I42ddbfdec6f9d74d858ad13cc38b5b64061d08dc
2017-12-13 20:19:52 +00:00
Neels Hofmeyr 719322693c fix segfault upon release paging on BSSMAP Reset: init llist
Initialize the llist head gsm_bts->paging.pending_requests at the time gsm_bts
is allocated, not only at paging_init_if_needed().

The gsm_bts->paging sub-struct is invalid as long as gsm_bts->paging.bts
doesn't point back to bts. Hence the recently added iteration of
gsm_bts->paging.pending_requests should have checked whether bts is NULL. The
llist_head pending_requests is not initialized unless paging_init_if_needed()
has been called (and paging.bts is hence set). However, this fix is a safer way
to prevent errors like this in general.

The segfault was introduced by d382bf63e2 /
If3f53d3bb66ad2dc02db823cb813590c6b59c700

Related: OS#2747
Change-Id: Idfafac4e2c0e0a241a62aecbbdc22be71febf840
2017-12-13 19:13:44 +01:00
Max 61b0c30cca Generate SI2bis Rest Octets
According to the spec it's an empty 1-byte element reserved for future
extension but we still have to generate padding properly. Add stub
function similar to the used for SI2ter and adjust test output
accordingly.

Related: OS#2711
Change-Id: I3c278c57880a173df3c4648c9724339d23ce94fd
2017-12-12 18:00:56 +00:00
Harald Welte d382bf63e2 paging: Stop all paging if MSC sends us BSSMAP RESET
When the MSC has lost its state and issues a RESET, we should not only
clear all ongoing radio connections, but we should also stop any paging.
There's no point in paging a subscriber if the MSC doesn't know about
this paging anymore.

Change-Id: If3f53d3bb66ad2dc02db823cb813590c6b59c700
Closes: OS#2736
2017-12-11 16:21:38 +01:00
Harald Welte f4b66fb2f1 paging: Remove obsolete paging call-back support
The call-back was needed inside the NITB to determine which part (CC,
SMS, ...) had triggered a given paging.   A pure BSC doesn't need that
feature, so let's get rid of it.

The 'void *cbfn_data' is replaced with a 'struct bsc_msc_data *', as
all callers use it with that type.

Change-Id: I8839e8338d3ad1a91b41e687e8412fcdca3fd9ab
2017-12-11 16:21:38 +01:00
Harald Welte 958cccf89a paging.c: add more documentation on what the functions actually do
This was created during code review towards some upcoming fix for
OS#2736. However, it's not really related to that.

Change-Id: I68d4fc8baaedd1d64cd628b2441c57ebc64ecebc
2017-12-11 16:21:38 +01:00
Harald Welte dea252d29c Change T3101 default from 10s to 3s.
This timer is started when a channel is allocated with an IMMEDIATE
ASSIGNMENT message. It is stopped when the MS has correctly seized the
channel.  Ever since the early days of development we were using a very
long timeout to be on the safe side.  However, in production networks
this is a terrible waste of resources, as we will occupy 10s worth
of air-time on one of our channels for each RACH request we receive.

The only scenarios where you might need something absurdly high as 10s
would be if you have 8s of RTT between your BTS and the BSC.

See also https://osmocom.org/projects/osmobsc/wiki/Timers

Change-Id: If3c52a7cf0c06d074c44a2fc414679279189aab9
Closes: OS#2733
2017-12-11 14:03:50 +01:00
Max 4bd710d107 Generate SI2ter Rest Octets
Previously we simply omitted SI2ter Rest Octets which is spec violation
which lead to 'Malformed Packet' error in Wireshark RSL dissector. Fix
this by generating empty 'no rest octets' with proper padding. Adjust
test output accordingly.

Change-Id: Ie4419aaaf93a462f501f8d8f7bf2677d37c58f94
Fixes: OS#2711
2017-12-11 12:27:49 +01:00
Philipp Maier eb79614f4e mgcp: cosmetic fixups
- use unique enum/struct fsm struct names
- use macro to shift bits in FSM description
- use OSMO_STRINGIFY to generate the state names
- remove duplicate logging of states and events
- remove unnecessary space in log strings
- prefix hexadecimal enpoint ids with
- remove unnecessary log messages
- rename bsc_mgcp_cause_codes_str to bsc_mgcp_cause_codes_names

Change-Id: I663e03046cde3c786af72d15681bf7497330d7f9
2017-12-10 14:22:41 +00:00
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
Harald Welte 9311005aff Remove 'msc' counter group from BSC
This is left over from the OsmoNITB days.  We're defining and allocating
these MSC counters, but never actually using them.  This also means that
the automatic counter export will list them, raising the expectation at
users that such counters could be used in OsmoBSC.

Let's remove them.  They are in OsmoMSC, but not OsmoBSC.

Change-Id: I5bd9e6e333b1c396beae46630986b17e7f8b82ef
2017-12-09 23:14:50 +01:00
Harald Welte 1ef46d922a rate_ctr: Use ':' as separator, not '.'
In more recent versions of libosmocore, we are converting any '.'
in [rate] counter names to ':' to avoid clashes with the special
meaning of '.' in the CTRL interface.  Let's avoid any conversion
and use the proper name already here.

This also changes the codec_foo counters to codec:foo to follow the
notation of other counters.

Change-Id: I18916abbfc706b86bd211e7cca1a0ca3099826e9
2017-12-09 23:10:46 +01:00
Harald Welte d82101e663 Move many counters from BSC-global to per-BTS granularity
We used to have a lot of counters only globlly per BSC, but they're
much more useful on a per-BTS level.

Change-Id: I954b9dda72b83b91d46a934c221a8b3375743599
2017-12-09 23:07:38 +01:00
Alexander Couzens 547c207579 use _NUM_CHREQ_T to define the size of ctype_by_chreq
Make it future compatible for changes. Otherwise it will break
when additional enums are adding to chreq in libosmocore.
Depends on libosmocore Id67ba8de89dd6288e449197438e9e1c5d7f5a134

Change-Id: I2acab2af8d67bccb2bc495512c1f259ae649a832
2017-12-06 13:25:35 +00:00
Philipp Maier f4d0889abb cosmetic: use fsm pointer from parameter list
the parameter list of osmo-fsm callbacks contains a pointer
to the fsm instance. Use this pointer instead of reaching
out for mgcp_ctx->fsm.

Change-Id: I05ff62e7e2de64c2dbf5ea2736f5e58faf16df0b
2017-12-01 13:36:30 +01:00
Philipp Maier a89e163e4c cosmetic: correct sourcecode formatting
add missing line break

Change-Id: Ia117e4099046fefcf35ccb94400554062e667869
2017-12-01 13:36:30 +01:00
Philipp Maier e941f88ea1 cosmetic: add missing log prefix
the log messages have prefixes that mark important phases (CRCX/BTS,
etc...). Some lines lack the prefix.

Add missing prefixes.

Change-Id: Iea5ea9e54f4b5c998b1d5fe18a98a94abd7b728b
2017-12-01 13:36:30 +01:00
Philipp Maier 7eeb84271d cosmetic: do not cast void pointer
remove the casting of void *data, just assign directly

Change-Id: I2e37630e315b3602da2f14e2364bb76be9dd2894
2017-12-01 13:36:30 +01:00
Philipp Maier e4cfa74d38 cosmetic: remove duplicate logging
The log output of the reset FSM duplicates lots of the built in
FSM log output.

Remove duplicate logging, use more expressive log messages where
needed.

Change-Id: Ia5af309207476291f88af47878dc1d32b2dada06
2017-12-01 13:36:30 +01:00
Philipp Maier 06c3f8d3cb mgcp: do not fail silently on snprintf()
The snprintf() that is used to compose the fsm name on an assignment
request may cause a silent failure. The buffer is large enough to
take the string under all circumstances. If snprintf() fails, this
would mean we have some other serious problem.

use OSMO_ASSERT in case the snprintf() fails, so the failure
gets noticed.

Change-Id: I3c36df8cfd0880c524244048a993cd136be41f56
2017-12-01 13:36:30 +01:00
Philipp Maier 3ada5397d7 mgcp: add missing switch case
In the beginning of the CRCX phase for the network does not distinguish
between EV_MDCX_BTS_RES and EV_TEARDOWN, so a Teardown due to an error
could be misinterpreted as a successful MGW response.

Add missing case statement to distinguish CV_MDCX_BTS_RES from
EV_TEARDOWN.

Change-Id: I9bf49df167d94b33ad65d8b9382a01f160b5aec0
2017-12-01 13:36:30 +01:00