Before this patch, the timeslot FSM receives OML and RSL ready events.
Afterwards, it relies on examining the RSL and OML status to match the received
events. This doesn't work for the ip.access nanobts, which fails to change the
CHANNEL OM's operational status even though it has sent an Opstart ACK. We
receive OML CHANNEL Opstart ACK, but the mo's state left at OP_STATE=Disabled.
We apparently cannot rely on the gsm_abis_mo state as assumed before this
patch, since changing the state depends on each BTS vendor's OML
implementation.
Also, implementation wise, it is better to not include assumptions on RSL and
OML implementations in the timeslot FSM. Simply receive the OML and RSL ready
events and remember that they arrived in dedicated flags.
Remove the no longer needed oml_is_ts_ready() callback from struct
gsm_bts_model added in:
commit 91aa68f762
"dyn TS: init only when both RSL and the Channel OM are established"
I99f29d2ba079f6f4b77f0af12d9784588d2f56b3
This keeps osmo-bts operational while fixing ip.access nanobts, where the
CHANNEL OM's state prevented the timeslot FSM from entering operation.
Change-Id: I4843d03b3237cdcca0ad2041ef6895ff253d8419
Add FSMs:
- timeslot_fsm: handle dynamic timeslots and OML+RSL availability.
- lchan_fsm: handle an individual lchan activation, RTP stream and release,
signal the appropriate calling FSMs on success, failure, release.
- mgw_endpoint_fsm: handle one entire endpoint with several CI.
- assignment_fsm: BSSMAP Assignment Request.
- handover_fsm: all of intra, inter-MO and inter-MT handover.
Above FSMs absorb large parts of the gscon FSM. The gscon FSM was surpassing
the maximum amount events (32), and it is more logical to treat assignment,
handover and MGW procedures in separate FSMs.
- Add logging macros for each FSM type:
- LOG_TS()
- LOG_LCHAN()
- LOG_MGWEP(), LOG_CI()
- LOG_ASSIGNMENT()
- LOG_HO()
These log with the osmo_fsm_inst where present.
New style decision: logging without a final newline char is awkward,
especially for gsmtap logging and when other logs interleave LOGPC() calls;
we have various cases where the final \n goes missing, and also this invokes
the log category checking N times instead of once.
So I decided to make these macros *always* append a newline, but only if
there is no final newline yet. I hope that the compiler optimizes the
strlen() of the constant format strings away. Thus I can log with or without
typing "\n" and always get an \n termination anyway.
General:
- replace osmo_timers, state enums and program-wide osmo_signal_dispatch()
with dedicated FSM timeouts, states and events.
- introduce a common way to handle Tnnn timers: gsm_timers.h/.c: struct T_def.
These can be used (with some macro magic) to define a state's timeout once,
and not make mistakes for each osmo_fsm_inst_state_chg().
Details:
bsc_subscr_conn_fsm.c:
- move most states of this FSM to lchan_fsm, assignment_fsm, handover_fsm and
mgw_endpoint_fsm.
- There is exactly one state for an ongoing Assignment, with all details
handled in conn->assignment.fi. The state relies on the assignment_fsm's
timeout.
- There is one state for an ongoing Handover; except for an incoming Handover
from a remote BSS, the gscon remains in ST_INIT until the new lchan and conn
are both established.
- move bssmap_add_lcls_status() to osmo_bsc_lcls.c
abis_rsl.c:
- move all dynamic timeslot logic away into timeslot_fsm. Only keep plain send/receive functions in
abis_rsl.c
- reduce some rsl functions to merely send a message, rename to "_tx_".
- rsl_ipacc_mdcx(): add '_tx_' in the name; move parts that change the lchan state out into the
lchan_fsm, the lchan->abis_ip.* are now set there prior to invoking this function.
- move all timers and error/release handling away into various FSMs.
- tweak ipa_smod_s_for_lchan() and ipa_rtp_pt_for_lchan() to not require an
lchan passed, but just mode,type that they require. Rename to
ipacc_speech_mode*() and ipacc_payload_type().
- add rsl_forward_layer3_info, used for inter-BSC HO MO, to just send the RR
message received during BSSMAP Handover Command.
- move various logging to LOG_LCHAN() in order to log with the lchan FSM instance.
One drawback is that the lchan FSM is limited to one logging category, i.e. this moves some logging
from DRR to DRSL. It might actually make sense to combine those categories.
- lose LOGP...LOGPC logging cascades: they are bad for gsmtap logging and for performance.
- handle_classmark_chg(): change logging, move cm2 len check out of the cm3 condition (I hope that's
correct).
- gsm48_send_ho_cmd(): split off gsm48_make_ho_cmd() which doesn't send right away, so that during
inter-bsc HO we can make an RR Handover Command to send via the MSC to the remote BSS.
assignment_fsm.c:
- the Chan Mode Modify in case of re-using the same lchan is not implemented
yet, because this was also missing in the previous implementation (OS#3357).
osmo_bsc_api.c:
- simplify bsc_mr_config() and move to lchan_fsm.c, the only caller; rename to
lchan_mr_config(). (bsc_mr_config() used to copy the values to mr_bts_lv
twice, once by member assignment and then again with a memcpy.)
- During handover, we used to copy the MR config from the old lchan. Since we
may handover between FR and HR, rather set the MR Config anew every time, so
that FR rates are always available on FR lchans, and never on HR lchans.
Depends: I03ee7ce840ecfa0b6a33358e7385528aabd4873f (libosmocore),
I1f2918418c38918c5ac70acaa51a47adfca12b5e (libosmocore)
Change-Id: I82e3f918295daa83274a4cf803f046979f284366
"utils" suggests thin helpers to aid using a proper API, while this .c file
actually *is* the proper RR API. Rename from "utils" to "rr".
Change-Id: I0ffff63d57f03cb324df8e40e41caea5b55a2c85
In certain situations like handover or assignment, DTAP must not go out via RSL
directly but is cached to be submitted later. Make sure that all RSL DTAP
sending adheres to this:
gscon_submit_rsl_dtap() is the new "public" API to request an RSL DTAP to be
sent. Depending on the gscon's state, this ends up in the cache or is sent
directly. When caching, there is no way to tell whether sending will succeed or
not, so semantically it does not make sense to even return a result code. Just
return void. Change all "public" callers to gscon_submit_rsl_dtap().
Merge gsm0808_submit_dtap() and submit_dtap() guts to gsm0808_send_rsl_dtap(),
static in bsc_subscr_conn_fsm.c: directly send DTAP, assume a conn->lchan to be
present, or otherwise trigger a BSSMAP Clear Request.
The static submit_dtap() becomes a thin convenience wrapper.
Move ho_dtap_cache* functions to bsc_subscr_conn_fsm.c and rename to
gscon_dtap_cache_* -- they are not only for handover, also for assignment.
Function gsm0808_submit_dtap() m
Introduce function gscon_submit_rsl_dtap()
Change-Id: I6ffd7aa641c8905292c769400048c96aa0949585
9-bit BSIC exist in the 3GPP specs, but we don't use them anywhere. Rather
remove that choice from the API and UI.
Change-Id: I29b92f47da2636d3a19f073755f9382fa98f9010
The vty option bts->codec-support allows the user to set the supported
codecs per BTS level. However, those values are currently only used to
make the handover decision but the logic that handles the BSSMAP
ASSIGNMENT REQUEST does not check those flags.
- Do not ignore bts->codec-support flags on BSSMAP ASSIGNMENT REQUEST
Change-Id: I285234e9c81de74d9fb9907fca2c443b08537435
Closes: OS#3361
At the moment there are three sources that may advertise a list of
supported audio codec/rate settings. There is the MS that advertises
advertises a speech codec list and the MSC that sends a channel type
information element over A and there are also settings in the bsc
configuration file that may restrict the codec/rate types that are
allowed to use.
The function match_codec_pref() looks at all of the three buckets and
selects a codec that satisfies all three. This is already a somewhat
complicated process, overit is very isolated, so lets give it its own
c-file.
Due to the lack of unit-tests it is very hard to make changes here so
lets add also unit-test to make sure that regressions are catched early.
- Put match_codec_pref() and all its helper functions into a separate
c-file.
- Add a unit test.
Change-Id: Iabedfdcec8b99a319f2d57cbea45c5e36c7b6e29
Related: OS#3361
Instead of silently setting the use count to 1, instead increment with an
explicit bsc_subsct_get(), which then logs the event along with the place that
created the subscriber.
Change-Id: Ia72f8010b7b2e1ca44e3b005c0f2c05f3eeae8d5
struct bsc_api was used to provide an abstract API for both osmo-bsc and
osmo-msc, between BSC and MSC. That's no longer needed, so get rid of it, to
prevent code turbulences it creates for no reason.
Change-Id: I3fd5888c63a0b4f95520a498320aa105a6d60579
Move all of libbsc/ into osmo-bsc/, and separate/move some implementations to
allow linking from utils/* and ipaccess/* without pulling in unccessary
dependencies.
Some utilities use gsm_network and gsm_bts structs, which already include data
structures for fairly advanced uses. Move initialization that only osmo-bsc
needs into new bsc_network_init() and bsc_bts_alloc_register() functions, so
that the leaner tools can use the old gsm_* versions without the need to link
everything (e.g. handover and lchan alloc code).
In some instances, there need to be stubs if to cut off linking "just before
the RSL level" and prevent dependencies from creeping in.
- abis_rsl_rcvmsg(): the only program currently interpreting RSL messages is
osmo-bsc, the utils are merely concerned with OML, if at all.
- paging_flush_bts(): ip.access nanobts models call this when the RSL link is
dropped. Only osmo-bsc actually needs to do anything there.
- on_gsm_ts_init(): the mechanism to trigger timeslot initialization is related
to OML, while this action to take on init would pull in RSL dependencies.
utils/ and ipaccess/ each have a stubs.c file to implement these stubs. Tests
implement stubs inline where required.
From src/utils/, src/ipaccess/ and tests/*/, link in .o files from osmo-bsc/.
In order for this to work, the osmo-bsc subdir must be built before the other
source trees. (An alternative would be to include the .c files as sources, but
that would re-compile them in every source tree. Not a large burden really, but
unless linking .o files gives problems, let's have the quicker build.)
Minor obvious cleanups creep in with this patch, I will not bother to name them
individually now unless code review asks me to.
Rationale:
1) libbsc has been separate to use it for osmo-nitb and osmo-bsc in the old
openbsc.git. This is no longer required, and spreading over libbsc and osmo-bsc
is distracting.
2) Recently, ridiculous linking requirements have made adding new functions
cumbersome, because libbsc has started depending on osmo-bsc/*.c
implementations: on gscon FSM and bssap functions. For example, neither
bs11_config nor ipaccess-config nor bts_test need handover_cfg or BSSMAP
message composition. It makes no sense to link the entire osmo-bsc to it, nor
do we want to keep adding stubs to each linking realm.
Change-Id: I36a586726f5818121abe54d25654819fc451d3bf
The TEST_SCAN_TO_MSC is completely unused, but still the code linked
bsc_scan_bts_msg() for the unused code path. This is unlikely to ever be
expanded. Remove TEST_SCAN_TO_MSC and reduce linking requirements.
(I am this close to dropping the test entirely to avoid continuous linking
annoyance, but ok, since nothing else tests timezones AFAIK, keeping it.)
Change-Id: I27521950432e412f919cde811c9473557d0ec25e
Rationale: channel_test is trivial and useless, probably only exists as a
legacy from openbsc.git.
- it tests two printf()s of "(bts=45,trx=0,ts=3,ss=4)", hardly useful.
- it tests ts_subslots() behavior for dyn ts, which will soon be replaced by a
most trivial mapping that does no longer need complex dyn ts state
evaluation (when introducing the new timeslot FSM to handle dyn TS switchover).
Change-Id: Ib2232da8e7fa964b92492d7b778320401dc97703
Rationale:
- All it does is compose four Paging Requests and feed it into the osmo-bsc
bssap_udt, and expects the cell identifier to be decoded properly.
- To do so it employs a comparatively huge linking effort. This linking effort
is becoming annoying in my ongoing work and is just not worth it.
- We have comprehensive cell identifier tests in ttcn3, verifying that the
proper cells are paged, and that actually for *all* cell identifier types.
Change-Id: I07cf23b66de36cfa1142a11b9f85e9c0190ee314
The bsc_msc_connection dates back to the old pre-libosmo-sigtran
days, and 90% of the field members weren't used at all (even the
new sigtran specific ones!). Let's merge what remains into struct
bsc_msc_data.
As a side effect, the already dysfunctional "dest A.B.C.D" VTY
command has been removed from the MSC node.
There's quite a bit of fall-out in the CTRL interface, which was
the code with strongest ties to bsc_msc_connection. This was
resolved by properly porting CTRL handling over to libosmo-sigtran,
meaning that an IPA/SCCPlite connected MSC can now again send CTRL
GET/SET commands, and can also receive those selective few TRAPs
that old osmo-bsc-sccplite also sent to its MSC[s].
Change-Id: I6b7354f3b23a26bb4eab12213ca3d3b614c8154f
Related: OS#2012
osmo-bsc_nat is too heavily tied into legacy SCCPlite code, as it
is not using libosmo-sigtran/osmo_ss7 so far. It's also full of
customer-specific code and it's shared use of some libbsc code here
has been complicating osmo-bsc development.
The current plan is to continue to use osmo-bsc_nat from openbsc.git
for those legacy users that need it, and not use osmo-bsc_nat in
new 3GPP AoIP setups. Should we ever get a strong demand for an AoIP
based bsc_nat, we can still revisit this later.
Change-Id: Ia05dc76336a64a7f08962843b9a7cc19f2c83387
At this point, meas-feed is usable again, however, osmo-bsc is not able to
include the IMSI in every report like osmo-nitb did.
In consequence, the meas-vis and meas-web tools are unable to handle the
current measurement reports: these so far use the IMSI to list reports, and all
reports without an IMSI are collapsed onto the same line, swapping values.
So though osmo-bsc now sends usable measurement reports via meas-feed, two
avenues to improve should be pursued:
OS#3192: the visualization tools should use bts,ts,ss numbers, not IMSI.
OS#2969: osmo-bsc should always know a mobile identity.
Related: OS#2968
Change-Id: I186c7a995dd2b81746c32a58b55da64ed195a1ce
There is a lot of dead code in osmo_bsc_msc.c that used to handle
the IPA multiplexed SSCP lite A interface.
- remove portions of the dead code
- remove IPA Ping related VTY commands
Change-Id: I5cf3fec31cc774c902f3cfe6d16fb85ef301694a
Fix various sanitizer complaints about memory leaks using a sanitizer build
with gcc (Debian 7.3.0-12) 7.3.0.
Also fix deprecation warnings on osmo_init_logging().
Depends: I216837780e9405fdaec8059c63d10699c695b360 (libosmocore)
Change-Id: I970c6f8a0e36a8b63e42349dbc92baff649e5cef
gsm_bts_alloc() ought to do all static initialization, so that e.g. unit tests
can use an initialized bts struct that is fully usable, just not registered at
the gsm_network.
For example, two INIT_LLIST_HEAD() and various system information data pointers
(pointing to proper places within the same bts struct) should definitely never
be omitted.
This fixes the remaining errors of gsm0408_test's SI tests, as revealed by a
sanitizer build using gcc (Debian 7.3.0-12) 7.3.0.
Fixes:
../../../../src/osmo-bsc/src/libbsc/system_information.c:613:3: runtime error: null pointer passed as argument 1, which is declared to never be null
Initializing the bts->si_common.rach_control results in different expected
bytes for SI2. The initialized values are
bts->si_common.rach_control.re = 1; /* no re-establishment */
bts->si_common.rach_control.tx_integer = 9; /* 12 slots spread - 217/115 slots delay */
bts->si_common.rach_control.max_trans = 3; /* 7 retransmissions */
bts->si_common.rach_control.t2 = 4; /* no emergency calls */
Causing a change to e5 04. 04 is t2 = 4, and the remaining values are verified by:
uint8_t re :1,
cell_bar :1,
tx_integer :4,
max_trans :2;
>>> hex(1 + (9 << 2) + (3 << 6))
'0xe5'
Change-Id: I13ef24bbe0f1fbe49465e67a0b67d6fd69fff3b1
Add missing deletion of osmo_stat_item_group_free(bts->bts_statg).
Add missing bts free after test_si_ba_ind().
Log deallocation, update expected test output.
This fixes some of the errors of gsm0408_test's SI tests, as revealed by a
sanitizer build using gcc (Debian 7.3.0-12) 7.3.0.
Fixes:
=================================================================
==19273==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d0000004b8 at pc 0x7f1561a94621 bp 0x7ffe7a7a64a0 sp 0x7ffe7a7a6498
WRITE of size 8 at 0x60d0000004b8 thread T0
#0 0x7f1561a94620 in __llist_add ../../../src/libosmocore/include/osmocom/core/linuxlist.h:75
#1 0x7f1561a94620 in llist_add ../../../src/libosmocore/include/osmocom/core/linuxlist.h:90
#2 0x7f1561a94620 in osmo_stat_item_group_alloc ../../../src/libosmocore/src/stat_item.c:141
#3 0x5574f6a19935 in gsm_bts_alloc ../../../../src/osmo-bsc/src/libbsc/gsm_data.c:728
#4 0x5574f6a12920 in bts_init ../../../../src/osmo-bsc/tests/gsm0408/gsm0408_test.c:123
#5 0x5574f6a0ddb3 in test_si2q_e ../../../../src/osmo-bsc/tests/gsm0408/gsm0408_test.c:192
#6 0x5574f6a0ddb3 in main ../../../../src/osmo-bsc/tests/gsm0408/gsm0408_test.c:824
#7 0x7f156061aa86 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21a86)
#8 0x5574f6a10339 in _start (/n/s/dev/make/osmo-bsc/tests/gsm0408/gsm0408_test+0xfc339)
Change-Id: I1ebbd8cc0622ce1a061e933813829b1f770072dc
We deliberately ignore errors from page_subscriber() so there is
no point in having a non-void return value.
Provide more context in the error message logged if paging failed.
Add a comment in an implementation override of base_grace_paging_request()
in the test suite to make return value semantics more clear.
Change-Id: Ie18c2ba53d2055d3eaff8c9ed939eb844af6dd2e
Related: I48f5efbcddd98e15256edfca06ba0ae6acb5bab1
The LAI encoding test in gsm0408_test.c uses deprecated API, and a more
thorough test for LAI encoding has been added in libosmocore/test/gsm0408/.
Change-Id: I8a55d717ab15ba23943a2639accaadc33a4f731a
Fixes following compilation warning:
osmo-bsc/tests/handover/handover_test.c:48:83: warning:
‘struct mgcp_conn_peer’ declared inside parameter list will not be visible outside of this definition or declaration
int __real_mgcp_conn_modify(struct osmo_fsm_inst *fi, uint32_t parent_evt, struct mgcp_conn_peer *conn_peer);
^~~~~~~~~~~~~~
Change-Id: I1b5e91adee3daaec71122a7691a214aa8240bce2
In the current implementation of osmo-bsc, the subscriber connection is
not handled (very) statefully. However, there is some state keeping in the
code that handles the mgcp connection, but there are still to much loose ends
which allow odd situations to happen, which then lead severe error situations
(see also closes tags at the end) This commit adds a number of improvements
to fix those problems.
- Use an osmo-fsm to control the gsm_subscriber_connection state and
make sure that certain operations can only take place at certain states
(e.g let connection oriented SCCP traffic only pass when an SCCP connection
actually exists.
Remove the old osmo_bsc_mgcp.c code. Use the recently developed MGCP client
FSM to handle the MGCP connections.
Also make sure that stuff that already works does not break. This in
particular refers to the internal handover capability and the respective
unit-tests.
See also OS#2823, OS#2768 and OS#2898
- Fix logic to permit assignment to a signalling channel. (OS#2762)
- Introduce T993210 to release lchan + subscr_conn if MSC fails to respond
The GSM specs don't have an explicit timer for this, so let's introdcue
a custom timer (hence starting with 99).
This timeout catches the following situation:
* we send a SCCP CR with COMPL_L3_INFO from the MS to the MSC,
* the MSC doesn't respond (e.g. SCCP routing failure, program down, ...)
The MS is supposed to timeout with T3210, 3220 or 3230. But the BSC
shouldn't trust the MS but have some timer on its own.
SCCP would have a timer T(conn est), but that one is specified to be
1-2min and hence rather long.
See also: OS#2775
- Terminate bsc_subscr_conn_fsm on SCCP N-DISC.ind from MSC
If the MSC is disconnecting the SCCP channel, we must terminate the FSM
which in turn will release all lchan's and other state.
This makes TC_chan_rel_hard_rlsd pass, see also OS#2731
As a side-effect, this fixes TC_chan_act_ack_est_ind_refused(),
where the MSC is answering with CREF to our CR/COMPL_L3.
- Release subscriber connection on RLL RELEASE IND of SAPI0 on main DCCH
The subscriber connection isn't really useful for anything after the
SAPI0 main signalling link has been released. We could try to
re-establish, but our best option is probably simply releasing the
subscriber_conn and anything related to it.
This will make TC_chan_rel_rll_rel_ind pass, see also OS#2730
This commit has been tested using the BSC_Tests TTCN3 testsuit and the
following tests were passed:
TC_chan_act_noreply
TC_chan_act_ack_noest
TC_chan_act_ack_est_ind_noreply
TC_chan_act_ack_est_ind_refused
TC_chan_act_nack
TC_chan_exhaustion
TC_ctrl
TC_chan_rel_conn_fail
TC_chan_rel_hard_clear
TC_chan_rel_hard_rlsd
TC_chan_rel_a_reset
TC_rll_est_ind_inact_lchan
TC_rll_est_ind_inval_sapi1
TC_rll_est_ind_inval_sapi3
TC_rll_est_ind_inval_sacch
TC_assignment_cic_only
TC_assignment_csd
TC_assignment_ctm
TC_assignment_fr_a5_0
TC_assignment_fr_a5_1_codec_missing
TC_assignment_fr_a5_1
TC_assignment_fr_a5_3
TC_assignment_fr_a5_4
TC_paging_imsi_nochan
TC_paging_tmsi_nochan
TC_paging_tmsi_any
TC_paging_tmsi_sdcch
TC_paging_tmsi_tch_f
TC_paging_tmsi_tch_hf
TC_paging_imsi_nochan_cgi
TC_paging_imsi_nochan_lac_ci
TC_paging_imsi_nochan_ci
TC_paging_imsi_nochan_lai
TC_paging_imsi_nochan_lac
TC_paging_imsi_nochan_all
TC_paging_imsi_nochan_plmn_lac_rnc
TC_paging_imsi_nochan_rnc
TC_paging_imsi_nochan_lac_rnc
TC_paging_imsi_nochan_lacs
TC_paging_imsi_nochan_lacs_empty
TC_paging_imsi_a_reset
TC_paging_counter
TC_rsl_drop_counter
TC_classmark
TC_unsol_ass_fail
TC_unsol_ass_compl
TC_unsol_ho_fail
TC_err_82_short_msg
TC_ho_int
Authors:
Harald Welte <laforge@gnumonks.org>
Philipp Maier <pmaier@sysmocom.de>
Neels Hofmeyr <neels@hofmeyr.de>
Closes: OS#2730
Closes: OS#2731
Closes: OS#2762
Closes: OS#2768
Closes: OS#2775
Closes: OS#2823
Closes: OS#2898
Closes: OS#2936
Change-Id: I68286d26e2014048b054f39ef29c35fef420cc97
Until now, handover_test simply defines an abis_rsl_sendmsg() function to
override the one from libosmo-babis. To me this amounts to implicit linker
magic (aka luck).
The common pattern we're using for this scenario is to explicitly wrap an
existing function by instructing the linker. Also do this for
abis_rsl_sendmsg() in handover_test.c to clarify.
Change-Id: I05ce33a4e42bc82b9ce5060e2f811033f5a1f8d8
Add 3-digit flags and use the new RAI and LAI API from libosmocore throughout
the code base to be able to handle an MNC < 100 that has three digits (leading
zeros).
The changes to abis_test and gsm0408_test show that this code now handles
3-digit MNC correctly, by not dropping the leading zero as 0xf in the encoded
PLMN.
Re-implement CTRL commands 'mcc', 'mnc' and 'mcc-mnc-apply' to preserve the
presence of the third digit of the MNC. Always reply with all leading zeros.
Adjust the expected results in ctrl_test_runner.py, to show that it works.
In VTY and CTRL, the parsing of MCC and MNC is inherently made stricter by use
of osmo_{mcc,mnc}_from_str() -- they will no longer allow surplus characters
and detect errno returned by strtol() (in contrast to atoi()).
Depends: Id2240f7f518494c9df6c8bda52c0d5092f90f221 (libosmocore),
Ib7176b1d65a03b76f41f94bc9d3293a8a07d24c6 (libosmocore),
I020a4f11791c61742a3d795f782805f7b7e8733e (libosmocore)
Change-Id: I8e722103344186fde118b26d8353db95a4581daa
All callers pass mcc=1, mnc=1, so just have it as default.
(Prepare for net->country_code etc to be replaced by net->plmn)
Change-Id: Ic16bc0bab3f2d4721e86a1a04f9d9f988d777df2
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
Expand MCC-MNC test cases: show that the CTRL interface currently does not
preserve the third digit of the MNC if it is zero. These will be fixed by
I8e722103344186fde118b26d8353db95a4581daa
Change-Id: I5b097dbb6329f284e3b4914a744d5c3ad628f715
In the past we used to set this to "-10 dBm" which means that basically
no RACH ever passed that treshold and in the associated CCCH LOAD IND
the number of busy slots was always zero.
Let's set the default to -90dBm. The user can of course always
configure a different value in the VTY.
This means that now any RACH slot signal level >= 90 dBm counts as
"busy" in those CCCH LOAD IND (RACH).
Change-Id: Ib9cbb786d19acc74f0951930b0dc9284854c6000
Closes: OS#3004
Related: OS#3003
handover_decision_2:
- lchan->conn should never be NULL, but if it is, don't crash in LOGPHO*
macros.
- make certain to avoid modulo-zero. It's cosmetic since that config item is
not allowed to be zero.
handover_test:
- check return value of gsm_generate_si().
- safer evaluation of main()'s argv.
Fixes: CID#182929, CID#182928, CID#182927, CID#182926
Change-Id: I68e8ed3a1e8659edb47ac3e8a10508f17a3f5670
Fix undefined references during link stage when building handover_test.
The archive libbsc.a needs to be listed before the various .so files.
Change-Id: Ie7e1d4815d72b8e0bbc6ccd68078a78de19d73b0
The ALIAS_DEPRECATED causes the legacy commands to no longer show up in the
command listing, hence making it more clear which commands are general and
which are for hodec1 only:
== BEFORE: ==
OsmoBSC(config-net)# list
...
handover (0|1|default)
handover algorithm (1|2|default)
handover1 window rxlev averaging (<1-10>|default)
...
handover2 window rxlev averaging (<1-10>|default)
...
handover2 retries (<0-9>|default)
handover window rxlev averaging (<1-10>|default) <-- legacy
handover window rxqual averaging (<1-10>|default)
handover window rxlev neighbor averaging (<1-10>|default)
handover power budget interval (<1-99>|default)
handover power budget hysteresis (<0-999>|default)
handover maximum distance (<0-9999>|default)
handover2 congestion-check (disabled|<1-999>|now)
OsmoBSC(config-net)# handover ?
0 Disable in-call handover
1 Enable in-call handover
default Enable/disable handover: Use default (0), remove explicit setting on this node
algorithm Choose algorithm for handover decision
window Measurement averaging settings <-- legacy
power Neighbor cell power triggering
maximum Maximum Timing-Advance value (i.e. MS distance) before triggering HO
OsmoBSC(config-net)# handover?
handover Handover general config <-- unchanged
== AFTER: ==
OsmoBSC(config-net)# list
...
handover (0|1|default)
handover algorithm (1|2|default)
handover1 window rxlev averaging (<1-10>|default)
...
handover2 window rxlev averaging (<1-10>|default)
...
handover2 retries (<0-9>|default)
handover2 congestion-check (disabled|<1-999>|now) <-- no more legacy
OsmoBSC(config-net)# handover ?
0 Disable in-call handover
1 Enable in-call handover
default Enable/disable handover: Use default (0), remove explicit setting on this node
algorithm Choose algorithm for handover decision
<-- no more legacy
OsmoBSC(config-net)# handover?
handover Handover general config <-- unchanged
The "Legacy" doc string actually never shows on the VTY console, but it will
show in the reference manual.
(Even with ALIAS(), a 'handover?' would only show the "Handover general config"
doc string, so no loss there from using ALIAS_DEPRECATED().)
Change-Id: I86be674d82242f9ca73a4d0040015c1c79f2422d
Handover decision 2 arguments are now configured by 'handover2 foo'. To match
that scheme, rename the previously 'handover foo' args for handover decision 1
to 'handover1 foo'.
For backwards compatibility, still provide aliases of the original VTY
commands. Writing back the config will result in 'handover1' though.
Change-Id: I7305ae7c04cc70082cd80d42b2ba32ffa399f51a
Do not share config items between the current handover decision and the
upcoming handover_decision_2.
Rename current handover config items to hodec2_* and duplicate the ones
relevant to handover decision algorithm 1 with name prefix of hodec1_*.
I considered moving hodec2 parameters to an entirely separate .c file and
struct, but that causes considerable code bloat. Rather use the nice
handover_cfg net/bts level mechanism as-is, and simply prefix the names.
In the VTY, the hodec1 parameters are configurable by 'handover foo 23'
commands, while the hodec2 parameters are by 'handover2 foo 23'. The generic
VTY commands to enable/disable handover and to choose the algorithm are still
'handover (0|1)' and 'handover algorithm (1|2)'.
(Note, a subsequent commit will rename the 'handover foo' for hodec1 to
'handover1 foo' and add backwards-compat aliases.)
For example, the 'window rxlev averaging 5' command now exists both for
handover decision 1 and handover decision 2, and its values are independent.
This is valid config:
network
# set up handover decision algorithm 1
# (pending rename of these items to 'handover1 ...')
handover window rxlev averaging 5
handover window rxlev neighbor averaging 5
# set up handover decision algorithm 2
handover2 window rxlev averaging 7
handover2 window rxlev neighbor averaging 7
handover2 penalty-time max-distance 10
# enable handover
handover 1
bts 0
handover algorithm 1
bts 1
handover algorithm 2
In this example, bts 0 uses algo 1 with rxlev averaging of 5, while bts 1 uses
algorithm 2 where rxlev averaging of 7 is in effect.
Change-Id: I6475b2543b18d21710a6d774b214cb484f36ec8e
About half of our log categories/subsystems were inherited from
OsmoNITB, and are no longer used but may confuse the user.
Change-Id: I8b39429f71c0faefdf8158a82093cfb19f44809e
There was always a 1:1 correspondence between gsm_subscriber_connection
and osmo_bsc_sccp_con, so there's really no point in having two separate
dynamically allocated data structures with pointers back and forth and
another linked list around.
Let's merge osmo_bsc_sccp_con into gsm_subscriber_connection for
simplicity.
The resulting code might not be elegant in places, but I've tried to
do only the most simple changes in this patch, while further
simplifications can be done in later subsequent patches.
As a side-effect, this patch also fixes lchan clearing if the MSC
(or the local SCCP provider) hard-disconnects the SCCP connection.
Change-Id: Idd2b733477ee90d24dec369755a00f1c39c93f39
Move gsm_data.c and handover_cfg.c to libbsc, where they belong.
This leaves libcommon utterly empty, drop it.
Change-Id: I6178061fa30c7e1a4c22c29d3c8f508b1033569f
The separation of gsm_data_shared.* from gsm_data.* historically allowed
compiling parts of it into osmo-bts, which we have dropped since (osmo-bts has
its own copy now). Even though gsm_data.* now becomes rather large by it,
remove the legacy separation to get rid of the "shared" naming, which is no
longer meaningful. A future patch might separate into meaningful smaller bits,
if we get the time.
Change-Id: Ie247bc492efb331871d970c56700595ad3f7e201
Provide concise log categories for each main scope.
Move the complete log categories 1:1 to osmo_bsc_main.c.
In bsc_nat.c, omit obviously unused log categories.
In tests, omit almost all log categories, except for those explicitly tested as
the expected output.
Note: should any logging occur for a log category that is omitted by accident,
such will end up being logged as DLGLOBAL, so it will show up and we can fix
it, and it will not get lost silently.
Change-Id: Ib524e49ec211662e0dfde8161495a72aa8ad76cf
The IMMEDIATE ASSIGN REJECT message contains a wait indicator which
tells an MS requesting a channel to wait for a specified amount of
time before trying to request a channel again, i.e. the wait indicator
controls the T3122 timeout value in the MS.
Previously, the wait indicator was fixed to 10 seconds.
This is not sufficient if there are a lot of MS requesting channels
because the MS will retry too soon. Instead of using a fixed value,
maintain a dynamic wait indicator value based on average channel load.
The load (used vs. available channels on a BTS) is sampled once per
second, and once 8 samples have been collected we update a BTS-specific
T3122 wait indicator based on the measured load.
While the wait indicator could go up to 255 seconds, this initial
implementation keeps it in the range from 10 to 128 seconds.
Further experimentation and testing will show whether higher wait
indicator values are desirable, if the sampling rate needs to change,
or if the function mapping the load measurement to a wait indicator
value should change (currently we map the load average linearly into
the range [10, 128] inclusive).
Change-Id: I57e38f6d6ba3b23cc6e1f9520b90261dbb1f1cec
Related: OS#2592
This member was merely a cache for conn->lchan->ts->trx->bts,
so let's avoid having to keep copies of the same data (which needs
to be kept up to date).
Change-Id: Id3bff8b18425ef5d45eb460ac9eb620023013ba0
This error message is now contained in a loop, and the current iteration
does not know whether paging will fail entirely or if later iterations
will succeed. Update the error message accordingly.
This also makes the error message consistent with the one in page_cgi().
Change-Id: I8ec229702343343dedcbb242b6d0ed170c858511
The given value is 10 * ms, so 13 is used instead of 128.
If T3105 is set at config to something greater 0, it is used instead of
the default value.
Adjusst nanobts_omlattr_test.c accordingly.
Change-Id: I3d9687619ba4de35f5d2eff3026d903534b2bbd4
It is desirable to allow configuring handover for each individual network cell.
At the same time, it is desirable to set global defaults.
Treat the 'network' node handover parameters as global defaults, add another
set of parameters for each individual BTS.
This raises questions on how the 'network' node should affect the individual
BTS. The simplistic solution would have been: on creating a BTS in the config,
just copy the current defaults; with serious drawbacks:
- tweaking any parameter in the telnet VTY on network node will never affect
any running BTS.
- network node defaults *must* be issued before the bts sections in the config
file.
- when writing a config back to file, we would copy all net node defaults to
each BTS node, making the network node configs pointless.
Instead, add a handover_cfg API that tracks whether a given node has a value
set or not. A bts node ho_cfg gets a pointer to the network node config and
returns those values if locally unset. If no value is set on any node, use the
"factory" defaults, which are hardcoded in the API. Only write back exactly
those config items that were actually issued in a config file / on the telnet
VTY. (ho_cfg API wise, we could trivially add another ho_cfg level per TRX if
we so desire in the future.)
Implement ho parameters as an opaque config struct with getters and setters to
ensure the tracking is always heeded. Opaqueness dictates allocating instead of
direct embedding in gsm_network and gsm_bts structs, ctx is gsm_net / bts.
This is 100% backwards compatible to
old configs.
- No VTY command syntax changes (only the online help).
- If a 'bts' sets nothing, it will use the 'network' defaults.
- The 'show network' output only changes in presence of individual BTS configs.
On 'show network', say "Handover: On|Off" as before, iff all BTS reflect
identical behavior. Otherwise, output BTS counts of handover being enabled or
not.
Use the same set of VTY commands (same VTY cmd syntax as before) on network and
BTS nodes, i.e. don't duplicate VTY code. From the current vty->node, figure
out which ho_cfg to modify.
For linking, add handover_cfg.c (the value API) in libcommon, while the
handover_vty.c is in libbsc. This is mainly because some utility programs use
gsm_network and hence suck in the ho stuff, but don't need the VTY commands.
Review the VTY online help strings.
Add VTY transcript test for handover options, testing config propagation from
network to bts nodes, 'show network' output and VTY online help strings.
(Needs recent addition of '... !' wildcard to osmo_interact_common.py.)
I considered leaving parts of this more readable, but in the end decided for
heavy use of macros to define and declare the API, because more values will be
added in upcoming patches and I want to prevent myself from messing them up.
Inspired-by: jolly/new_handover branch, which moves the config to 'bts' level
Depends: I7c1ebb2e7f059047903a53de26a0ec1ce7fa9b98 (osmo-python-tests)
Change-Id: I79d35f6d3c0fbee67904378ad7f216df34fde79a
We can now either page an invidual BTS directly or page several BTS in a
given location area. This decision is taken based on the contents of the
cell identifier list in the paging request. Select a set of BTS for paging
while processing the cell identifier list, rather than requiring the
paging layer to loop over all BTS in the MSC.
This change requires some adjustment in bssap_test. In particular,
this test must now add a BTS to its network in order to pass.
The purpose of this change is to make the layering a bit cleaner.
There is one functional change: We no longer abort paging if paging fails
for a particular BTS. Instead, we keep trying to page on other BTS.
Change-Id: Ic1c72c7f83e53988eb9fedf314b1dc459836833d
Suggested-by: Harald Welte
Depends: Ic7772e75c3d7fb0df6e17e118bb33b3248352d4d
Related: OS#2753
The stow-enabled jenkins builds are currently failing like below:
make[3]: Entering directory '/build/src/libcommon'
CC bsc_version.o
CC common_vty.o
CC debug.o
CC gsm_data.o
In file included from debug.c:34:0:
../../include/osmocom/bsc/gsm_data.h:15:38: fatal error: osmocom/sigtran/sccp_sap.h: No such file or directory
#include <osmocom/sigtran/sccp_sap.h>
^
compilation terminated.
In file included from common_vty.c:27:0:
../../include/osmocom/bsc/gsm_data.h:15:38: fatal error: osmocom/sigtran/sccp_sap.h: No such file or directory
#include <osmocom/sigtran/sccp_sap.h>
^
compilation terminated.
In file included from gsm_data.c:37:0:
../../include/osmocom/bsc/gsm_data.h:15:38: fatal error: osmocom/sigtran/sccp_sap.h: No such file or directory
#include <osmocom/sigtran/sccp_sap.h>
^
compilation terminated.
Let's make sure the common gsm_data.h have all required CFLAGS to compile.
Change-Id: I30b75db6ffba227b05b5413b84b15f69e0c213f2
This avoids potential licensing incompatibility and makes integration of
Debian packaging patches easier.
The libosmocore version requirements are fine already but for jenkins
tests to pass we have to have Ic77866ce65acf524b768882c751a4f9c0635740b
merged into libosmocore master.
Change-Id: Ia57bf1300525cf3c247284fe966b1c415c2d53e2
Related: OS#1694
don't mock them, simply call the respective functions to get
a gsm_network and a gsm_bts with all its subordinate members.
Change-Id: I8bdf009d3c7e2473dd42da02762039a19430d6ce
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
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
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
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
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
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
* 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
According to documentation (and personal experience), AM_PATH_PYTHON
selects the highest version of python, no matter if major version is
different, which means if both python2 and 3 are available, 3 will be
chosen an PYTHON will point to "/.../python" which is python3. Apparently,
the macro cannot be easily used to pick highest python2 version.
As {vty,ctrl}_test_runner.py require python2 and are incompatible with
python3, let's instead rely on the system having a "python2" binary
available, which is the case in most distros.
Change-Id: Id22e157d1bee453babdfa7ed04c506390b0f17bb
After the bssap test in Ie934c5d229140a89763bf2efff86d6a3766cd351, the
subsequent commit Ia2882b7ca31a3219c676986e85045fa08a425d7a was not tested
against the latest head, and its breaking bssap_test was not caught.
Fix current master of osmo-bsc's 'make check' target: add osmo_bsc_mgcp.c and
libosmo-mgcp-client dependencies to bssap_test linkage.
Change-Id: I28719d267452f66d65581c43433e24a9f46cf7dc
3GPP TS § 08.08 defines various types of Cell Identifier List IEs, but we only
implement "entire BSS" and "one LAC". If the MSC sends a Cell Identifier List
that we don't implement, it is best for interoperability to page the entire BSS
and post a log message instead of rejecting the paging altogether. Apart from
resource management, it is not harmful to page more than the MSC requested; if
use of resources becomes an issue, the log message will guide towards the
solution of providing an actually implemented Cell Identifier List IE.
Upon IE length that is other than we expect, log the error, but also fall back
to paging the entire BSS. Overall message length correctness has been checked
earlier.
The particular case observed is that a Huwaei MSC sends a LAI for Cell
Identifier List (MCC+MNC in bcd, followed by a LAC), parsing of which we may
want to add later.
Improve logging: identify the subscriber that is being paged.
Coding style: use a switch() statement to clarify flow and provide a place to
add more implementations later.
Add regression test bssap_test.c: fabricates BSSAP Paging messages with the two
implemented Cell Identifier List IEs as well as the unimplemented LAI
identifier, verify the resulting paging LAC in wrapped function and stderr.
Change-Id: Ie934c5d229140a89763bf2efff86d6a3766cd351
The test clearly fails unless bts->network is set correctly. Not sure
why this hasn't shown up before?
Change-Id: I47786ed06ff610213d7a0b56d0ebf1c537cd7568
Previously if we ran out of space while adding EARFCN, we simply return
which might result in malformed SI2q. Fix it by proper rollback of
entire EARFCN. While at it, let's be paranoid and introduce extra checks
against integer overflow in budget calculations.
Change-Id: I4b2aa3825e9affb6dfeadecdf24dd1a43a92b7b7
Related: OS#2357
* fix insert routine to keep the list sorted by UARFCN
* fix rest octets generator to properly account for offset
* adjust test results accordingly
Change-Id: I443c5c5f937b490578354f3c8a0c5b92629f2794
Related: OS#2357
* remove checks for non-existent tests
* always enable bsc and nat-trie tests because both are built
unconditionally
* enable gsm0408 test which was removed by mistake
* adjust gsm0408 test output to remove SMS-related results
Change-Id: I73ad079a6333ba56e73b7c4d1d0e9c8255c2a03b
Related: OS#2257
This adds a test case to explicitly verify the BA-IND is as expected
by the behaviour introduced in Change-Id I1cd0dc51026dcd0e508e63eea4e333e6b184787a
Related: OS#2525
Change-Id: I3e5b260af97ce96a221e4d51f6c1b41d58817a59
In masurement reports sent by the MS, this can then be used to correlate
if a given measurement report was in response to a BCCH/neighbor list
received on BCCH (SI2xxx) or on dowlink SACCH (SI5xxx).
Closes: OS#2525
Change-Id: I1cd0dc51026dcd0e508e63eea4e333e6b184787a
Fix three instances of VTY tests working because it used to include implicit
'exit' commands to the parent node.
Since libosmocore change-id Id73cba2dd34676bad8a130e9c45e67a272f19588 = commit
d64b6aed235f6e4d84a2cb8e84b32c3179260254, we no longer do this implicit-exit in
interactive VTY shells.
*) in testPingPongConfiguration, the intention is to enter the /msc 0 node.
Drop prior entry of the 'network' node, which looks like an oversight. So
far the 'msc 0' caused an implicit 'exit' and thus worked, now fails.
*) Two instances following comments "# Check searching for outer node's
commands", which look like they are intended to check for this implicit-exit
behavior. This is obsolete, drop those parts of the tests.
Change-Id: I77931d6a09c42c443c6936000592f22a7fd06cab
This is the OsmoBSC project. Disabling the build of the BSC would be
somewhat odd, so let's remove the option.
Also, OsmoBSC depends on libosmo-sccp now, so we must unconditionally
depend on it. As a result, we can remove the --enable-nat option,
as this was only to avoid a mandatory libosmo-sccp requirement in
historical times.
Change-Id: Icfee8a904d33b7c13ab8d185d64fb5c2337d8640
Rewire build and includes to libosmo-legacy-mgcp.
Drop osmo-bsc_mgcp and related python tests, now found in osmo-mgw.git.
libosmo-legacy-mgcp is installed from osmo-mgw, hence add the dependency to
jenkins.sh (so far using the pre_release branch).
Change-Id: Ic99d681759edce11564da62500c2aac5cf5fffe2
Remove libiu here, use the functions from libosmo-ranap instead, by applying
the ranap_ / RANAP_ prefix.
Corresponding change-id in osmo-iuh.git is I6a3f7ad15be03fb94689b4af6ccfa828c25f45c0
To be able to run the msc_vlr tests for RAN_UTRAN_IU without Iu client headers
available, add iu_dummy.h, containing mere function signatures that match
iu_dummy.c and a mostly empty struct ranap_ue_conn_ctx.
Make sure we can build with and without --enable-iu: include osmo-iuh headers
only with --enable-iu.
Change-Id: Ib8c4fcdb4766c5e575618b95ce16dce51063206b
This was originally a long series of commits converging to the final result
seen in this patch. It does not make much sense to review the smaller steps'
trial and error, we need to review this entire change as a whole.
Implement AoIP in osmo-msc and osmo-bsc.
Change over to the new libosmo-sigtran API with support for proper
SCCP/M3UA/SCTP stacking, as mandated by 3GPP specifications for the IuCS and
IuPS interfaces.
From here on, a separate osmo-stp process is required for SCCP routing between
OsmoBSC / OsmoHNBGW <-> OsmoMSC / OsmoSGSN
jenkins.sh: build from libosmo-sccp and osmo-iuh master branches now for new
M3UA SIGTRAN.
Patch-by: pmaier, nhofmeyr, laforge
Change-Id: I5ae4e05ee7c57cad341ea5e86af37c1f6b0ffa77
Commit 058cd573d8 added 2 new pointer parameters to
gprs_subscr_request_auth_info, but forgot to update wraps of the
function in sgsn_test.
I catched this today because openbsc build test sgsn_test was failing.
Closed look up to the logs showed:
Assert failed (auts != NULL) == (auts_rand != NULL) openbsc/openbsc/src/gprs/gprs_subscriber.c:791
Change-Id: Ie9e4af6da0339536fb20ca0b7bbcf6f485bd522c
In 2015, Jacob moved/copied related functions to libosmocore, but
for some reason didn't remove the copies here. Let's follow-up on
that and remove duplicated code.
The libosmocore commit introducing osmo_apn_to_str() was
8114294bf29ac6e44822c0ae43d4b0819f11b022
Change-Id: I7315ffcbed8a54cca2056f313bb7783ad82d0ee9
Fixes regression probably introduced in c696cc28.
For bts>0 logging doesn't show bts number correctly when printing lchan
identification string - it will always show it as "bts=0". The reason for
this is that the identification string is cached before bts->nr value is
set to a proper value.
This patch sets bts->nr as part of the first step of the bts structure
initialization, before caching happens thus making sure the cached
identification string is cached with the correct values.
Change-Id: I61c18a7f021fcb1ec00d34a745f4e3ab03416c2d
SMPP DELIVER_SM messages with esm_class = Delivery Receipt need to send
this message reference (that the mobile phone allocates) to the ESME.
Thus, the ESME propagates it via SUBMIT_SM with esm_class = Delivery
Acknoledgment so that the SMSC sends the GSM 03.40 status-report to the
origin including this. Given this field is useful for status-reports, we
need to store it in the HLR database.
Moreover, we need a new field that specifies if the entry represents a
SMS status-report, to do the right handling from the gsm411_send_sms() -
such new handling comes in a follow up patch entitled "libmsc: handle
delivery ack via SMPP SUBMIT SM / send GSM 03.40 status report".
This patch includes the migration routines to the new database schema
revision 5, it's quite a bit of dbi boilerplate code - copied-pasted and
adapted.
Change-Id: I7276d356d805a83ebeec72b02c8563b7135ea0b6
For the vty tests, add osmo-sgsn-accept-all.cfg (that does not need an HLR) and
use in vty_test_runner.py, otherwise the 'show sgsn' command will reply that it
could not connect to the HLR, failing the vty test which expects empty.
Change-Id: Ie3b2013198d3e2b780a4e31c36b89b58129dcacd
On incoming 04.08 messages, we log only the protocol discriminator in
decimal. Enhance: log pdisc and message type in hex, and also log the
protocol and message type as human readable string.
Also adjust the msc_vlr tests' log statements for wrapped rx/tx functions
of dtap from/to the MS.
Adjust the expected output of msc_vlr_tests.
Change-Id: Ida205d217e304337d816b14fd15e2ee435e7397d
Depends: libosmocore change-id I0fca8e95ed5c2148b1a7440eff3fc9c7583898df
libosmocore change-id I4efdb1eaae43aced33961b64d4f14b0040321c10 changes the
gsm340_gen_scts() from gmtime to localtime, meaning that by feeding a mere zero
as timestamp, we get different results depending on the local machine's
timezone setting. Instead of calling gsm340_gen_scts() with zero, simply write
a bunch of bytes as time so that the tests get identical SMS bytes every time.
Change-Id: I8a50e8963dce80609749571b61fc6ffe1c54660c
osmo-nitb becomes osmo-msc
add DIUCS debug log constant
add iucs.[hc]
add msc vty, remove nitb vty
add libiudummy, to avoid linking Iu deps in tests
Use new msc_tx_dtap() instead of gsm0808_submit_dtap()
libmgcp: add mgcpgw client API
bridge calls via mgcpgw
Enable MSC specific CTRL commands, bsc_base_ctrl_cmds_install() still needs to
be split up.
Change-Id: I5b5b6a9678b458affa86800afb1ec726e66eed88
Disable large parts of the code that depend on BSC presence. The code sections
disabled by #if BEFORE_MSCSPLIT shall be modified or dropped in the course of
adding the A-interface.
Don't set msg->lchan nor msg->dst.
Don't use lchan in libmsc.
Decouple lac from bts.
Prepare entry/exit point for MSC -> BSC and MSC -> RNC communication:
Add msc_ifaces.[hc], a_iface.c, with a general msc_tx_dtap() to redirect to
different interfaces depending on the actual subscriber connection.
While iu_tx() is going to be functional fairly soon, the a_tx() is going to be
just a dummy for some time (see comment).
Add Iu specific fields in gsm_subscriber_connection: the UE connection pointer
and an indicator for the Integrity Protection status on Iu (to be fully
implemented in later commits).
Add lac member to gsm_subscriber_connection, to allow decoupling from
bts->location_area_code. The conn->lac will actually be set in iu.c in an
upcoming commit ("add iucs.[hc]").
move to libcommon-cs: gsm48_extract_mi(), gsm48_paging_extract_mi().
libmsc: duplicate gsm0808 / gsm48 functions (towards BSC).
In osmo-nitb, libmsc would directly call the functions on the BSC level, not
always via the bsc_api. When separating libmsc from libbsc, some functions are
missing from the linkage.
Hence duplicate these functions to libmsc, add an msc_ prefix for clarity, also
add a _tx to gsm0808_cipher_mode():
* add msc_gsm0808_tx_cipher_mode() (dummy/stub)
* add msc_gsm48_tx_mm_serv_ack()
* add msc_gsm48_tx_mm_serv_rej()
Call these from libmsc instead of
* gsm0808_cipher_mode()
* gsm48_tx_mm_serv_ack()
* gsm48_tx_mm_serv_rej()
Also add a comment related to msc_gsm0808_tx_cipher_mode() in two places.
Remove internal RTP streaming code; OsmoNITB supported that, but for OsmoMSC,
this will be done with an external MGCP gateway.
Remove LCHAN_MODIFY from internal MNCC state machine.
Temporarily disable all paging to be able to link libmsc without libbsc.
Skip the paging part of channel_test because the paging is now disabled.
Employ fake paging shims in order for msc_vlr_tests to still work.
msc_compl_l3(): publish in .h, tweak return value. Use new libmsc enum values
for return val, to avoid dependency on libbsc headers. Make callable from
other scopes: publish in osmo_msc.h and remove 'static' in osmo_msc.c
add gsm_encr to subscr_conn
move subscr_request to gsm_subscriber.h
subscr_request_channel() -> subscr_request_conn()
move to libmsc: osmo_stats_vty_add_cmds()
gsm_04_08: remove apply_codec_restrictions()
gsm0408_test: use NULL for root ctx
move to libbsc: gsm_bts_neighbor()
move to libbsc: lchan_next_meas_rep()
move vty config for t3212 to network level (periodic lu)
remove unneccessary linking from some tests
remove handle_abisip_signal()
abis_rsl.c: don't use libvlr from libbsc
gsm_subscriber_connection: put the LAC here, so that it is available without
accessing conn->bts. In bsc_api.c, place this lac in conn for the sake of
transition: Iu and A will use this new field to pass the LAC around, but in a
completely separate OsmoBSC this is not actually needed. It can be removed
again from osmo-bsc.git when the time has come.
Siemens MRPCI: completely drop sending the MRPCI messages for now, they shall
be added in osmo-bsc once the A-Interface code has settled. See OS#2389.
Related: OS#1845 OS#2257 OS#2389
Change-Id: Id3705236350d5f69e447046b0a764bbabc3d493c
libvlr now delegates subscriber management to osmo-hlr, so the database no
longer represents a HLR. It basically only stores SMS, so reflect that fact in
the default database name.
Change-Id: I3289d68d3eb63aff940b48a25b584d5e83cd0197
Original libvlr code is by Harald Welte <laforge@gnumonks.org>,
polished and tweaked by Neels Hofmeyr <nhofmeyr@sysmocom.de>.
This is a long series of trial-and-error development collapsed in one patch.
This may be split in smaller commits if reviewers prefer that. If we can keep
it as one, we have saved ourselves the additional separation work.
SMS:
The SQL based lookup of SMS for attached subscribers no longer works since the
SQL database no longer has the subscriber data. Replace with a round-robin on
the SMS recipient MSISDNs paired with a VLR subscriber RAM lookup whether the
subscriber is currently attached.
If there are many SMS for not-attached subscribers in the SMS database, this
will become inefficient: a DB hit returns a pending SMS, the RAM lookup will
reveal that the subscriber is not attached, after which the DB is hit for the
next SMS. It would become more efficient e.g. by having an MSISDN based hash
list for the VLR subscribers and by marking non-attached SMS recipients in the
SMS database so that they can be excluded with the SQL query already.
There is a sanity limit to do at most 100 db hits per attempt to find a pending
SMS. So if there are more than 100 stored SMS waiting for their recipients to
actually attach to the MSC, it may take more than one SMS queue trigger to
deliver SMS for subscribers that are actually attached.
This is not very beautiful, but is merely intended to carry us over to a time
when we have a proper separate SMSC entity.
Introduce gsm_subscriber_connection ref-counting in libmsc.
Remove/Disable VTY and CTRL commands to create subscribers, which is now a task
of the OsmoHLR. Adjust the python tests accordingly.
Remove VTY cmd subscriber-keep-in-ram.
Use OSMO_GSUP_PORT = 4222 instead of 2222. See
I4222e21686c823985be8ff1f16b1182be8ad6175.
So far use the LAC from conn->bts, will be replaced by conn->lac in
Id3705236350d5f69e447046b0a764bbabc3d493c.
Related: OS#1592 OS#1974
Change-Id: I639544a6cdda77a3aafc4e3446a55393f60e4050
- bscs.config needed by the vty tests was not picked up as a dist file, because
its suffix is not 'cfg'. Rename to *.cfg. Apply this rename in
vty_test_runner.py and osmo-bsc_nat.cfg.
- Remove restart counters after external tests, otherwise distcheck complains
about uncleaned files.
- Add contrib/ipa.py to EXTRA_DIST, hence add a Makefile.am to contrib/.
Otherwise the python tests cannot find that dependency.
Change-Id: I42b55cb1125099afc3a8e3f87c0e398426b2e2a9
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
This was a stupid decision. We will have to assign the
network at some other place. The problem will be a problem
when we have two gsm_networks in one process and the same
subscriber is traveling in both networks.
select function ob libbsc. A "polling" flag is used to enable polling.
In this case select() will not sleep until file descriptor events occurr
or nearest timer expires. Also a return value will indicate if there was
an event that has been handled. If there was an event, the application
decides to poll again and don't wait.
In case for bsc_hack, the polling flag is not set. select will sleep as
usual.
(Andreas Eversberg)
* gsm_util now uses caller-allocated data (rather than callee-allocated)
* correctly parse destination address
* parse (but not transcode) non-default encodings of SMS
* reject SMS to unknown destination number
* resolve target subscriber id and store incoming SMS (without header) in 'sms' table
What we're now missing is the sending part, i.e. a regular task iterating over
all pending SMS and trying to deliver them. Also, check for pending SMS once
we get a LOCATION UPDATE.
gsm_subscriber is now refcounted, the db backend is leaking
a lot less, db_get_subscriber will allocate the subscr record
now, subscr_* will look up a subscriber in the list of currently
active subscribers and add an ref to this one.
The db test cases pass, more testing will be when next to the bts
Call use_lchan early in allocate_loc_updating_req, do not directly call
rsl_chan_release but go through channel alloc to take the use_count into
account.
Use strdup to be able to use strtok on the category string and add
a test case. Also safe some more information to be able to use color
in the print statement.
One can use add_timer or schedule_timer to add a timer. After
the timeout time has been reached the callback will be called.
One can call add_time/schedule_timer and del_timer from within
the callback.
Neels Hofmeyr
Philipp Maier
Harald Welte
Pau Espin
Keith Whyte
Neels Hofmeyr
Daniel Willmann