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Add a 'ipa-name' VTY command which overrides the default IPA name
used by the MSC. This is a prerequisite for inter-MSC handover.
Related: OS#3355
Change-Id: I317d6c59f77e92fbb2b875a83dc0ec2fa5cb6006
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sub_pres_vlr_fsm_start() starts the FSM, invokes the START event, and then this
FSM invariably always directly terminates when vsub->ms_not_reachable_flag ==
false.
So if it is false, there is not much use in instantiating a whole FSM instance
that just terminates again, we might as well directly issue the
parent-term-event and save some logging space.
The same condition is already in place in the vlr_proc_acc_fsm.c in
_proc_arq_vlr_node2_post_vlr() for CM Service Request and Paging Response. Now
also skip this for LU.
Change-Id: Id2303a795dfd381f76e94ff8ff2f495926ca8ba0
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So far the only way to use external MNCC is to pass the -M cmdline arg:
osmo-msc -M /path/to/socket
However, the osmo-msc.service file for systemd is installed by 'make install',
and hence it is quite impractical to depend on such a config item to be
required in the service file:
- It defies any scheme an operator may have in place to compose the
osmo-msc.cfg file -- this option doesn't go in the .cfg file but needs
separate action to add to the installed service file.
- After a make install or package upgrades / re-installations, this option will
be plain overwritten silently, or lead to the need for resolving file
conflicts.
The initial spark for this came from configuring the 35c3 GSM from cfg
templates.
Change-Id: I2ec59d5eba407f83295528b51b93678d446b9cee
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I want to add 'mncc internal' and 'mncc external' commands, and IMHO makes most
sense to have a common 'mncc' keyword to start MNCC config commands with. To
put it in terms of VTY online help:
OsmoMSC(config-msc)# mncc ?
internal Use internal MNCC handler
external Use internal MNCC handler
guard-timeout Set global guard timeout
So far only the 'guard-timeout' exists, I want to add 'internal' and 'external'
in a subsequent commit.
Keep the old command 'mncc-guard-timeout' as deprecated alias. That means it
still works from old config files, but online documentation will omit it.
On 'write', write back the new format instead.
Rationale: see I2ec59d5eba407f83295528b51b93678d446b9cee
Change-Id: I52d69af48e1ddc87b3fb54bf66a01b1b8cbf5abe
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It needs to work whether SMPP,Iu are enable or disabled, hence a bit more
wildcarding than one might expect.
Change-Id: I3a8c50d8d555b6b948d97d6412e17594ee439de0
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Separate 'make python-test' into separate make targets, to sensibly add VTY
transcript tests in an upcoming commit.
Feature: even though ./configure was called without --enable-external-tests,
each of the {ctrl,vty}x{python,transcript} tests can be invoked individually by
e.g. 'make vty-python-test'.
Both 'vty-transcript-test' and 'ctrl-transcript-test' are still empty, a
subsequent patch adds a vty-transcript-test.
All of this in preparation of tweaking the 'mncc' vty configuration, to be able
to track it in a vty transcript test.
Change-Id: I688657e56ae469c07b9f25ba37275d38dbd457e2
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I'm going to make the external tests manually launchable. For that I first had
an error message if $(PYTHON) was empty. But Pau says I should just use shebang
instead and ignore the autoconf python stuff, since that often fails anyway.
Change-Id: Ie35dd78c42577109a6a3143221a9769e47d361a5
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gsm_subscriber.h contains some legacy cruft, part of which is that the VLR's
max MSISDN length should rather be defined in vlr.h. Same for GSM_NAME_LENGTH
-> VLR_NAME_LENGTH.
Adjust some sms_queue stuff that anyway includes vlr.h already.
Drop gsm_subscriber.h from vlr.h.
Add other (more concise) includes that thus become necessary, since the include
chain vlr.h->gsm_subscriber.h->gsm_data.h is no longer in place.
Change-Id: Iab5c507ec04fc2884187cf946f6ae2240e4a31f8
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Along goes GSM_KEYSEQ_INVAL as VLR_*.
It's where it logically belongs, and is almost the only reason why vlr.h
includes gsm_data.h. The remaining reason, GSM_EXTENSION_LENGTH, will be moved
by upcoming patch.
Change-Id: I122feae7ee3cbc59e941daef35a954bce29fec76
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For hysterical raisins, there are some header files that contain few
declarations, and where the name doesn't reflect the content. Combine them to
new msc_common.h:
- common.h
- common_cs.h
- osmo_msc.h
Change-Id: I9e3a587342f8d398fb27354a2f2475f8797cdb28
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Following previous rename of gsm_subscriber_connection:
Some functions and #defines are still called like "msc_conn" or just "msc_",
while they are clearly about a RAN conn.
To avoid confusion with the future separate concepts of MSC roles and a RAN
connection, rename all those to match the common "ran_conn" prefix.
Change-Id: Ia17a0a35f11911e00e19cafb5d7828d729a69640
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In preparation for inter-BSC and inter-MSC handover, we need to separate the
subscriber management logic from the actual RAN connections. What better time
to finally rename gsm_subscriber_connection.
* Name choice:
In 2G, this is a connection to the BSS, but even though 3GPP TS commonly talk
of "BSS-A" and "BSS-B" when explaining handover, it's not good to call it
"bss_conn": in 3G a BSS is called RNS, IIUC.
The overall term for 2G (GERAN) and 3G (UTRAN) is RAN: Radio Access Network.
* Rationale:
A subscriber in the MSC so far has only one RAN connection, but e.g. for
inter-BSC handover, a second one needs to be created to handover to. Most of
the items in the former gsm_subscriber_connection are actually related to the
RAN, with only a few MM and RTP related items. So, as a first step, just rename
it to ran_conn, to cosmetically prepare for moving the not strictly RAN related
items away later.
Also:
- Rename some functions from msc_subscr_conn_* to ran_conn_*
- Rename "Subscr_Conn" FSM instance name to "RAN_conn"
- Rename SUBSCR_CONN_* to RAN_CONN_*
Change-Id: Ic595f7a558d3553c067f77dc67543ab59659707a
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Another one of those "what is this still doing here". Not mentioned in
configure.ac nor Makefile.am SUBDIR...
Change-Id: I05880507d9bf029f0ec451efda0ebe54ac09ef12
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According to GSM TS 04.11, the SMC (Short Message Control) state
machine is a part of CM-sublayer of L3, that is responsible for
connection management (establisment and releasing), and SM-RP
(Relay Protocol) message delivery.
For some reason, the connection establisment request from SMC
(GSM411_MMSMS_EST_REQ) was not handled properly - it was
always assumed that connection is already established.
This is why the code initiating a MT (Mobile Terminated) SMS
transfer had to establish a radio connection with subscriber
manually.
Let's benefit from having the SMC state machine, and offload
connection establishment to it. This change makes the local
implementation closer to GSM TS 04.11, and facilitates the
further integration of GSUP transport.
NOTE: the expected unit test output is changed, because now we
always allocate a transaction first, and then establish a
connection, not vice versa.
Change-Id: I4a07ece80d8dd40b23da6bb1ffc9d3d745b54092
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The parameter link_id in the function msc_dtap() is unused. Lets remove
it.
Change-Id: I7ba67b0cb514c91bc87a7b396ed3962b7a68e7da
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Change-Id: I2bf8150580c318ccaa9c30657582c15020f6b711
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* constify function parameter
* internalize parameter check
Change-Id: Icf507d094319123c6667ba963db1d385df4d4f92
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The external MNCC handler may hang indefinitely in cases where the remote
end of the MNCC ceases to work properly. Add a global guard timer to
make sure the call reaches ACTIVE state.
Change-Id: I7375d1e17cd746aac4eadfe1e587e82cf1630d3d
Related: OS#3599
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Give the HLR a chance to send us updated subscriber data by indicating the CN
domain to be Circuit Switched, only during a LU Request GSUP message.
Adjust msc_vlr_tests to expect the added GSUP CN domain IE to indicate CS, i.e.
append '280102'.
Related: OS#3601
Change-Id: I0c2d33fbfdb4728e480679120d06b7f3a2ccfd76
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When the VLR requests a Ciphering Mode with vlr_ops.set_ciph_mode(), and if we
need a ciph algo flag from a Classmark information that is not yet known
(usually CM 2 during LU), send a BSSMAP Classmark Request to get it.
To manage the intermission of the Classmark Request, add
- msc_classmark_request_then_cipher_mode_cmd(),
- state SUBSCR_CONN_S_WAIT_CLASSMARK_UPDATE,
- event SUBSCR_CONN_E_CLASSMARK_UPDATE.
From state AUTH_CIPH, switch to state WAIT_CLASSMARK_UPDATE. Once the BSSMAP
Classmark Response, is received, switch back to SUBSCR_CONN_S_AUTH_CIPH and
re-initiate Ciphering Mode.
To be able to re-enter the Ciphering Mode algo decision, factor it out into
msc_geran_set_cipher_mode().
Rationale:
In the following commit, essentially we stopped supporting A5/3 ciphering:
commit 71330720b6efdda2fcfd3e9c0cb45f89e32e5670
"MSC: Intersect configured A5 algorithms with MS-supported ones"
Change-Id: Id124923ee52a357cb7d3e04d33f585214774f3a3
A5/3 was no longer supported because from that commit on, we strictly checked
the MS-supported ciphers, but we did not have Classmark 2 available during
Location Updating.
This patch changes that: when Classmark 2 is missing, actively request it by a
BSSMAP Classmark Request; continue Ciphering only after the Response. Always
request missing Classmark, even if a lesser cipher were configured available.
If the Classmark Update response fails to come in, cause an attach failure.
Instead, we could attempt to use a lesser cipher that is also enabled. That is
left as a future feature, should that become relevant. I think it's unlikely.
Technically, we could now end up requesting a Classmark Updating both during LU
(vlr_lu_fsm) and CM Service/Paging Response (proc_arq_fsm), but in practice the
only time we lack a Classmark is: during Location Updating with A5/3 enabled.
A5/1 support is indicated in CM1 which is always available, and A5/3 support is
indicated in CM2, which is always available during CM Service Request as well
as Paging Response. So this patch has practical relevance only for Location
Updating. For networks that permit only A5/3, this patch fixes Location
Updating. For networks that support A5/3 and A5/1, so far we always used A5/1
during LU, and after this patch we request CM2 and likely use A5/3 instead.
In msc_vlr_test_gsm_ciph, verify that requesting Classmark 2 for A5/3 works
during LU. Also verify that the lack of a Classmark Response results in attach
failure.
In msc_vlr_test_gsm_ciph, a hacky unit test fakes a situation where a CM2 is
missing during proc_arq_fsm and proves that that code path works, even though
the practical relevance is currently zero. It would only become interesting if
ciphering algorithms A5/4 and higher became relevant, because support of those
would be indicated in Classmark 3, which would always require a Classmark
Request.
Related: OS#3043
Depends: I4a2e1d3923e33912579c4180aa1ff8e8f5abb7e7 (libosmocore)
Change-Id: I73c7cb6a86624695bd9c0f59abb72e2fdc655131
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In the msc_vlr_tests, instead of printing the algo IDs, rather print the
corresponding A5/n name, for clarity.
Change-Id: Ic00f1e54490650bcb40170647b8ffd52ede23fd3
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Store all Classmark information in the VLR.
So, we now always know the Classmark 1 (mandatory IE for LU). This is visible
in the msc_vlr_tests -- they no longer indicate "assuming A5/1 is supported"
because classmark 1 is missing, because we now know the Classmark 1.
Rationale:
During Location Updating, we receive Classmark 1; during CM Service Request and
Paging Response, we receive Classmark 2. So far we stored these only for the
duration of the conn, so as soon as a LU is complete, we would forget CM1.
In other words, for anything else than a LU Request, we had no Classmark 1
available at all.
During Ciphering Mode Command, we rely on Classmark 1 to determine whether A5/1
is supported. That is moot if we don't even have a Classmark 1 for any CM
Service Request or Paging Response initiated connections.
The only reason that A5/1 worked is that we assume A5/1 to work if Classmark 1
is missing. To add to the confusion, if a phone indicated that it did *not*
support A5/1 in the Classmark 1, according to spec we're supposed to not
service it at all. A code comment however says that we instead want to heed the
flag -- which so far was only present in a Location Updating initiated
connection. Now we can make this decision without assuming things.
This got my attention while hacking on sending a BSSMAP Classmark Request from
the MSC if it finds missing Classmark information, and was surprised to see it
it lacking CM1 to decide about A5/1.
Change-Id: I27081bf6e9e017923b2d02607f7ea06beddad82a
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For networks without Authentication, the conn is already accepted when
SUBSCR_CONN_E_COMPLETE_LAYER_3 is emitted. Mute that misleading error message.
All is actually fine.
Adjust expected test logs.
Change-Id: I2d19d0a7cf3226ee1456f75a68e007ba98232402
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osmo-hlr has recently (as of Change-Id
Iad227bb477d64da30dd6bfbbe1bd0c0a55be9474) a working shared library
implementation of libosmo-gsup-client.
We can remove the local implementation in osmo-msc and use the
system-installed shared library instead.
Change-Id: I6f542945403cf2e3ddac419186b09ec0e2d43b69
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libosmogsm in libosmocore.git from Change-Id
Ie36729996abd30b84d1c30a09f62ebc6a9794950 onwards contains oap_client.c,
so we don't need our local copy here in this repo anymore.
Change-Id: Ib6496c35d0ce6eb531e97129dc45a9f68e503b34
Requires: libosmocore.git Change-Id Ie36729996abd30b84d1c30a09f62ebc6a9794950
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This change introduces a possibility to establish network-initiated
SS/USSD transactions with a subscriber in either IDLE, or DEDICATED
state. In the first case, a new transaction is established using
Paging procedure. If a subscriber already has an active connection,
a separate new transaction is established.
TTCN-3 test case: I073893c6e11be27e9e36f98f11c1491d0c173985
Change-Id: Ief14f8914ef013bd6efd7be842f81fbf053f02e2
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In order to be able to support external SS/USSD gateway, we should
not terminate the GSM 04.80 messages at OsmoMSC. Instead, we need
to follow the GSM TS 09.11 specification, and forward all messages
unhandled by OsmoMSC to OsmoHLR over GSUP protocol.
This change implements forwarding of MO SS/USSD messages. The
forwarding assumes transcoding between GSM 04.80 messages and
GSUP messages. The payload of Facility IE is carried 'as is'.
As a side-effect, this will disable the osmo-msc internal handler
implementing the "*#100#" for obtaining the subscribers own phone
number. In order to re-gain this functionality, you will need a
modern osmo-hlr (Change-Id I1d09fab810a6bb9ab02904de72dbc9e8a414f9f9)
and the following line in your osmo-hlr.cfg:
hlr
ussd route prefix *#100# internal own-msisdn
TTCN-3 test case: I01de73aced6057328a121577a5a83bc2615fb2d4
Change-Id: Ide5f7e350b537db80cd8326fc59c8bf2e01cb68c
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Previously the '*#100#' USSD-request was abused in order to
conclude the current subscriber connection. This makes the unit
tests depend on each other, for example, if one break something
in the GSM 09.11 implementation, a half of tests would fail.
Moreover, the further changes in the GSM 09.11 implementation
will make the results less predictable (i.e. session ID, etc.).
So let's introduce a separate unit test with simple request-
response logic, while more complex tests will be in TTCN.
Change-Id: I40b4caac3113263f5a06c861dff5e10d43c319b5
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A subscriber may have a few active transactions at the same time.
For example, one can receive SMS messages during a call, or during
an active SS/USSD session.
We already have connection ref-counting and transactions for CC
and SMS, so let's also use both for SS/USSD.
Change-Id: I21c6777cb88f1f4f80f75dcd39734e952bd4e8b0
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Remove subscribers which fail to send periodic Location Updates from the
list of subscribers known to the VLR. This complements the IMSI detach
procedure: periodic LU expiry triggers an implicit IMSI detach.
Expired subscribers are purged from a periodic timer which iterates
over all subscribers once per minute.
Subscribers with an active connection do not expire. This is controlled
by the subscriber conn FSM which sets a subscriber's the LU expiry timeout
value to GSM_SUBSCRIBER_NO_EXPIRATION while a connection is active.
Add support for fake time with osmo_clock_gettime() to msc_vlr tests.
This functionality existed in OpenBSC but was lost during the nitb split.
This code took some inspiration from the OpenBSC implementation.
Related: OS#1976
Change-Id: Iebdee8b12d22acfcfb265ee41e71cfc8d9eb3ba9
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The FSM that controls the VLR ACCESS uses cause code 9
(GSM48_REJECT_MS_IDENTITY_NOT_DERVIVABLE) to signal that the
identity of the MS is currently not known in VLR (MSC-Reboot)
However, this cause code is from the GMM domain and is interpreted
as GSM48_REJECT_SRV_OPT_TMP_OUT_OF_ORDER by the MS, which cauese
the MS not to make a new LOCATION UPDATE on CM SERVICE REQUEST
- use GSM48_REJECT_IMSI_UNKNOWN_IN_VLR and
GSM48_REJECT_IMSI_UNKNOWN_IN_VLR instead of
GSM48_REJECT_IMSI_UNKNOWN_IN_VLR
Change-Id: Ic058c93387f9be9af4940f8961839c02b93ee370
Closes: OS#3266
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Since the I697639d8469e5dda617b27995c4a92e1f0c0bead, call
independent SS messages are also supported by
gsm48_pdisc_msgtype_name().
So, instead of 'NCSS:0x3b' it will return 'GSM0480_MTYPE_REGISTER'.
Let's correct the expected message names.
Change-Id: If9e854ee84882d104cf2ffaceb3862fda6862f19
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Change-Id: I2a09efafbdbdde0399238f7d79feea8612605201
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Instead of keeping separate enums for FSM results and translating between those
and the actual 04.08 reject causes that will ultimately reach the MS, just pass
enum gsm48_reject_value cause codes around everywhere.
Collapse some VLR *_timeout() and *_cancel() api to just *_cancel() with a
gsm48 cause arg.
(Hopefully) improve a few reject causes, but otherwise just aim for more
transparent decisions on which cause value is used, for future fixes of
returned causes.
Depends: I6661f139e68a498fb1bef10c266c2f064b72774a (libosmocore)
Change-Id: I27bf8d68737ff1f8dc6d11fb1eac3d391aab0cb1
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In the subscr_conn_fsm instance's ID, include the Complete Layer 3 type, so
that we can see on the first glance whether a state transition belongs to MO or
MT.
The huge patch is due to the cosmetic change affecting nearly every single log
line in the msc_vlr_tests, by nature of changing the FSM's ID.
Related: OS#3122
Change-Id: I2a7e27e0f16df1872dcda64cb928c3b8528ea3f7
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When sending a BSSMAP Clear or Iu Release, do not immediately discard the conn,
but wait until a BSSMAP Clear Complete / Iu Release Complete has been received.
Hence we will no longer show in the log that an incoming Release/Clear Complete
belongs to an unknown subscriber, but will still be around to properly log the
release.
Related: OS#3122
Change-Id: Ie4c6aaba3866d6e5b98004e8870a215e8cf8ffc1
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Refactor:
1. Glue the gsm_subscriber_connection alloc to the subscr_conn_fsm.
2. Add separate AUTH_CIPH state to the FSM.
3. Use conn->use_count to trigger conn release.
4. Add separate RELEASING state to the FSM.
5. Add rate counters for each of the three Complete Layer 3 types.
Details:
1. Glue the gsm_subscriber_connection alloc to the subscr_conn_fsm.
Historically, a gsm_subscriber_connection was allocated in libbsc land, and
only upon Complete Layer 3 did libmsc add the fsm instance. After splitting
openbsc.git into a separate osmo-msc, this is no longer necessary, hence:
Closely tie gsm_subscriber_connection allocation to the subscr_conn_fsm
instance: talloc the conn as a child of the FSM instance, and discard the conn
as soon as the FSM terminates.
2. Add separate AUTH_CIPH state to the FSM.
Decoding the Complete Layer 3 message is distinctly separate from waiting for
the VLR FSMs to conclude. Use the NEW state as "we don't know if this is a
valid message yet", and the AUTH_CIPH state as "evaluating, don't release".
A profound effect of this: should we for any odd reason fail to leave the FSM's
NEW state, the conn will be released right at the end of msc_compl_l3(),
without needing to trigger release in each code path.
3. Use conn->use_count to trigger conn release.
Before, the FSM itself would hold a use count on the conn, and hence we would
need to ask it whether it is ready to release the conn yet by dispatching
events, to achieve a use_count decrement.
Instead, unite the FSM instance and conn, and do not hold a use count by the
FSM. Hence, trigger an FSM "UNUSED" event only when the use_count reaches zero.
As long as use counts are done correctly, the FSM will terminate correctly.
These exceptions:
- The new AUTH_CIPH state explicitly ignores UNUSED events, since we expect the
use count to reach zero while evaluating Authentication and Ciphering. (I
experimented with holding a use count by AUTH_CIPH onenter() and releasing by
onleave(), but the use count and thus the conn are released before the next
state can initiate transactions that would increment the use count again.
Same thing for the VLR FSMs holding a use count, they should be done before
we advance to the next state. The easiest is to simply expect zero use count
during the AUTH_CIPH state.)
- A CM Service Request means that even though the MSC would be through with all
it wants to do, we shall still wait for a request to follow from the MS.
Hence the FSM holds a use count on itself while a CM Service is pending.
- While waiting for a Release/Clear Complete, the FSM holds a use count on
itself.
4. Add separate RELEASING state to the FSM.
If we decide to release for other reasons than a use count reaching zero, we
still need to be able to wait for the msc_dtap() use count on the conn to
release.
(An upcoming patch will further use the RELEASING state to properly wait for
Clear Complete / Release Complete messages.)
5. Add rate counters for each of the three Complete Layer 3 types.
Besides LU, also count CM Service Request and Paging Response
acceptance/rejections. Without these counters, only very few of the auth+ciph
outcomes actually show in the counters.
Related: OS#3122
Change-Id: I55feb379e176a96a831e105b86202b17a0ffe889
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So far we hit a running T308 during CC release when caused by a BSSMAP Clear
Request, and we loudly log that as error.
However, now I understand that T308 is a direct cause of the dispatch of a REL
IND towards MNCC, which is used to indicate teardown to MNCC. So during
_gsm48_cc_trans_free(), we first clear all timers, then invoke
mncc_release_ind() which starts another timer (useful for graceful CC Release,
but in this code path the intention is immediate release). Simply immediately
cancel the timer again and release the conn.
A separate question is whether a BSSMAP Clear Request should be less aggressive
in releasing the connections; i.e. instead of calling trans_free() all around,
to rather ask each transaction to "please stop soon", somehow.
Related: OS#3062
Change-Id: I231fdb574a086a206321148474cbdc7ca9cf39f0
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A related ttcn3 test is added in Ic80646e1fba37bb6163ca3a7eead7980b4ad7a51
Related: OS#3062
Change-Id: Ice7197b48d4e163a3c4d97b559fdcd7e88c4107e
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In the old days, OsmoNITB couldn't process any SMS that wasn't between
two subscribers on the same NITB.
We've long re-worked the internals in order to process SMS with
arbitrary sender MSISDN (e.g. from SMPP). However, the VTY command
"subscriber ... sms" was never updated, it seems.
Change-Id: I62b17e0a67989484415f0df2c8cb4ff1f94dbf2b
Closes: OS#3151
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The current msc_subscr_con_allocate() was in fact only used by msc_vlr_tests,
while both a_iface_bssap.c and iucs.c did their own duplicate code of
allocating the gsm_subscriber_connection struct. Unify.
Drop the old msc_subscr_con_allocate(), instead add msc_subscr_conn_alloc().
The new function also takes via_ran and lac arguments directly.
The conn allocation will soon be closely tied to the subscr_conn_fsm instance
allocation, so place the new function definition alongside the other
subscr_conn_fsm API, and match its naming ("conn").
Related: OS#3122
Change-Id: Ia57b42a149a43f9c370b1310e2e1f512183993ea
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Instead of jumping through hoops to pass the Complete Layer 3 operation that
created this conn via FSM event dispatch parameters, put it right in the
gsm_subscriber_connection struct, where it always belonged.
Move definition of the enum complete_layer3_type to gsm_data.h, where
gsm_subscriber_connection is defined.
Introduce msc_subscr_conn_update_id() to set the complete_layer3_type of the
conn as soon as a Complete Layer 3 message is received.
In msc_subscr_conn_update_id(), already include an mi_string argument to
prepare for an upcoming patch where the FSM will be allocated much earlier when
the Mobile Identity is not known yet, and we'll also update the fi->id here.
The odd logging change in the msc_vlr_tests output uncovers a wrong use of the
osmo_fsm_inst_dispatch() data argument for SUBSCR_CONN_E_CN_CLOSE events: if a
child FSM signals unsuccessful result, instead of the failure cause, it passed
the complete_layer3_type, as requested upon FSM allocation, which was then
misinterpreted as a failure cause. Now a child FSM failure will pass NULL
instead, while other SUBSCR_CONN_E_CN_CLOSE events may still pass a valid cause
value.
Related: OS#3122
Change-Id: Iae30dd57a8861c4eaaf56999f872d4e635ba97fb
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Match osmo-bsc's naming of the subscriber connection's FSM instance; 'conn->fi'
makes more sense anyway than 'conn->conn_fsm'.
BTW, an upcoming commit will do away with the legacy from libbsc/libmsc duality
and firmly glue the conn allocation to the fi.
Related: OS#3122
Change-Id: If442f2ba78d9722b1065ec30c9a13f372b6a8caa
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I broke this test during dev and saw the failure being noticed only in the next
test when DTAP is expected again. Verify success right there, instead.
Change-Id: Ifdde3a6fa5835203c34c40db77761f2e90c0d5ff
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Since the logging allocations now also show up in the root context report, some
tests need adjusted talloc checks.
In msc_vlr_tests, also output the number of talloc blocks before tests are
started to show that the number didn't change after the tests.
Change-Id: Iae07ae60230c7bab28e52b5df97fa3844778158e
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Change-Id: If6afda250986b12781ae579323985615621ed75c
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All that is left in libcommon now are the GSUP and OAP client implementations.
These are duplicated in osmo-sgsn.git and make sense to remain somewhat
separate from libmsc. So now they get their own little lib.
Change-Id: Ic71aa119c233b6a0ae169a5b2a53819903d2be82
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Drop tall_bsc_ctx; in mncc_sock_init(), talloc the mncc_sock_state from
gsm_network.
In tests or utils, move from using an extern tall_bsc_ctx to a local root
context pointer.
Change-Id: I92c252be1d1e7634f1653de47d37c99d77d9501c
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Apply more concise logging categories in each main scope. The bulk goes to
msc_main.c, obviously, while tests and utils get a slimmed down bunch of
logging categories.
Change-Id: I969a0662ba273f3721b6820d02151b7a5b8014b8
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In trans_free(), call subscr_conn_release_when_unused(), so that we are sure to
clean up after the last transaction is done.
This fixes an error where a conn lingered after a CC failure, because that code
path forgot to trigger cleanup.
Rationale: so far we were triggering the release check after each DTAP dispatch
(compl_l3 and "normal" DTAP), which is sufficient for properly closed
transactions. We also need a check for when a timeout clears an erratic trans.
Adjust test expectation of test_call_mo_to_unknown_timeout to show that the
error is now fixed.
msc_vlr_test_reject_concurrency now sees an additional release checking event
when the SMS transaction is done, which is expected and does not affect the
test otherwise.
Related: OS#2779
Change-Id: I46ff2e9b09b67e4e0d79cccf8c04936f17281fcb
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