When we are performing Rx sensitivity testing on a BTS, we want to
deactivate the connection failure criterion / radio link timeout, i.e.
no matter how many SACCH frames in uplink are failed to decode, the BTS
should never close the channel.
OsmoBTS Change-Id I736f21f6528db5c16fa80cdb905af20673797be5 covers a way
how this behavior can be requested from the BTS via an OML attribute.
This patch adds support to the BSC to actually set that attribute.
Do not use this in production networks, as the BTS will keep open radio
channels indefinitely even if the phone is gone and no longer
transmitting anything. This is a pure testing feature.
Change-Id: I6cb94e0f024934f7baeeb728ca9ed3042fbf16d2
Previously the SI generation lead to setting the BCCH SIs for all TRX in
a multi-trx setup. This is because we create the SIs globally but
si_valid appears to be limited to the 'current' trx. Warn if we attempt
to set SIs for the BCCH on a trx that does not have a BCCH.
Change-Id: Ie0e288252a2e7709c4dae16b96a0b1512278847f
Tweaked-by: Max <msuraev@sysmocom.de>
To support segmented SI2quater as per 3GPP TS 44.018 we'll have to
support multiple SI messages (up to 16 for SI2q) for a given type in
contrast to existing 1:1 mapping:
* expand storage space to hold up to 16 SI messages (spec limit)
* add assertions for budget calculations
* generate multiple SI2q messages
* adjust SI2q-related tests
* use precise check for number of SIq messages instead of approximate
estimation
Change-Id: Ic516ec9f0b821557d9461ae9f1c0afdd786f3b05
Related: OS#1660
* move SI2quater related defines to shared header
* add define from OsmoBTS which checks for presence of a given SI
message in gsm_bts struct. Rename it to avoid conflicts with OsmoBTS
code and to match naming conventions of similar macros.
Change-Id: I11432c93c772d1ead6d45a7bb0f1d13d492c82f1
Related: OS#1660
osmo_talloc_replace_string() was introducd into libosmocore in 2014, see
commit f3c7e85d05f7b2b7bf093162b776f71b2bc6420d
There's no reason for us to re-implement this as bsc_replace_string
here.
Change-Id: I6d2fcaabbc74730f6f491a2b2d5c784ccafc6602
In addition to compile-time defined BTS model features we also need
run-time BTS features reported by BTS via OML. This should be shared by
BSC and BTS. To accommodate for this, add following:
* features bitvec to gsm_bts struct
* features descriptions
* comments to avoid confusion between 2 feature sets
* helper functions to set/query particular feature
* upper boundary on number of supported features and assertion for it
Change-Id: I02bd317097ba66585c50ebd4e8fc348f6dc3dad9
Related: OS#1614
Rename gsm_bts_has_feature() -> gsm_btsmodel_has_feature() and adjust
type signature to match gsm_btsmodel_set_feature() function and avoid
confusion with upcoming functions to check/set BTS features reported
over OML.
Change-Id: I97abdedbef568e0c2fbd37c110f7d658cf20e100
Related: OS#1614
Since commit b4999b60d4 we created PCU
sockets at hard-coded paths in the filesystem by default for all BTSs.
This is inflexible and prevents the use of multiple BSC instances on a
single filesystem, or the placement of the sockets in a more secure
location than /tmp.
The new approach with this patch is that
* no PCU sockets are created by default
* only for those BTSs where a 'pcu-socket' is configured via VTY,
the socket will actually be created
Change-Id: Ie9079470584777dcc31f85f9bf0808f479156ccb
Closes: OS#2293
We generally use const pointers for input arguments. Also, document
input/output arguments of function and add spec reference.
Change-Id: I2532cde69a18e3b021f7371e68f67a28a43d8b5f
The PCU sends imm.ass messages in response to a rach request. Those
messages need to be forwarded to RSL in order to get them send. This
commit introduces the required functionality for that
Change-Id: Ice099c4ed7008200ed179e581aba1899c6c29455
Ericsson allows to attach a reference to immediate assignments. A
confirmation of the transmission is then sent back, but only containing
the reference, not the whole RLC packet.
Change-Id: I945f49e62e2a74a7906e2d49940927773edd04a9
The newline and $NULL manage to append a trailing space to the 'openbsc' dir.
This was broken in commit 7b6673fa06
"Consistenly format variables in */Makefile.am files"
by Change-Id Ifa21513c007072314097b7bec188579972dc1694
Add a comment to prevent this in the future.
Reported-by: Andreas Mueller <andreas.mueller@criticallabs.org>
Change-Id: I218027459e3b2aaa817d91eb3f69d9c0b10dcd4e
The gsm_data_shared.h header is installable and used by OsmoBTS so it
should not include any private (non-installable headers) to avoid
OsmoBTS' build failures.
Change-Id: Ic25031101fc01bd732fe691132c081ad05fa6a4b
In preparation for extended SI2q messages:
* add SI2q-specific accessor macro
* add *_offset variables to gsm_bts struct
* internalize memory check while generating rest octets - introduce
budget concept (number of bits available in a given message)
* internalize *arfcn_size() functions as they are not needed outside of
si2q_num() anymore
* change rest octets generation to work with gsm_bts struct directly
* do not generate rest octets if no SI2q is necessary
* adjust unit tests accordingly (cosmetic changes only to avoid
regressions)
Requires: I92e12e91605bdab9916a3f665705287572434f74 in libosmocore
Change-Id: Ib554cf7ffc949a321571e1ae2ada1160e1b35fa6
Related: RT#8792
* use define for number of attributes instead of magic number
* add sub_model to gsm_bts struct
* expand number of BTS features
* mark attributes parameter to abis_nm_get_attr() as const
Change-Id: I7ecb0c4339530d3a8354a2f94b34063dda87e030
Related: OS#1614
* move value_string definition and corresponding functions for BTS type
to shared header to make it re-usable by OsmoBTS
* use consistent function naming
* add similar functions for BTS variant
* add enum to be used by OML Attribute Reporting to distinguish between
type, variant and other info
Change-Id: Ida94725a6fce968443541e3526f48f13758031fd
Related: OS#1614
Hold on with the GSM 04.11 RP-ACK/RP-ERROR that we send to the MS until
we get a confirmation from the ESME, via SMPP DELIVER-SM-RESP, that we
can route this sms somewhere we can reach indeed.
After this change, the conversation looks like this:
MS GSM 03.40 SMSC SMPP 3.4 ESME
| | |
| SMS-SUBMIT | |
|------------------->| |
| | DELIVER-SM |
| |---------------->|
| | |
| | DELIVER-SM-RESP |
| |<----------------|
| GSM 04.11 RP-ACK | |
|<-------------------| |
| | |
Before this patch, the RP-ACK was sent back straight forward to the MS,
no matter if the sms can be route by the ESME or not. Thus, the user
ends up getting a misleading "message delivered" in their phone screen,
when the message may just be unroutable by the ESME hence silently
dropped.
If we get no reply from the ESME, there is a hardcoded timer that will
expire to send back an RP-ERROR to the MS indicating that network is
out-of-order. Currently this timer is arbitrarily set to 5 seconds. I
found no specific good default value on the SMPP 3.4 specs, section 7.2,
where the response_timer is described. There must be a place that
describes a better default value for this. We could also expose this
timer through VTY for configurability reasons, to be done later.
Given all this needs to happen asyncronously, ie. block the SMSC, this
patch extends the gsm_sms structure with two new fields to annotate
useful information to send the RP-ACK/RP-ERROR back to the MS of origin.
These new fields are:
* the GSM 04.07 transaction id, to look up for the gsm_trans object.
* the GSM 04.11 message reference so the MS of origin can correlate this
response to its original request.
Tested here using python-libsmpp script that replies with
DELIVER_SM_RESP and status code 0x0b (Invalid Destination). I can see
here on my motorola C155 that message cannot be delivered. I have tested
with the success status code in the SMPP DELIVER_SM_RESP too.
Change-Id: I0d5bd5693fed6d4f4bd2951711c7888712507bfd
Previously it was only in gsm_bts_model which is not initialized on BTS
side. It's more convenient to have it in the struct which is available
to BTS as well.
Change-Id: I54fde8c4ccd5d994af08074f5864446e79a93a25
Related: OS#1614
Supporting SI2quater as per 3GPP TS 44.018 will require chnages to the
way System Information is stored because it uses 1:n instead of 1:1
mapping between SI type and generated SI content. This should not affect
other SI types though. To facilitate this transition:
* convert the code to always use GSM_BTS_SI helper instead of accessing
buffer directly
* make helper more robust by adding extra parenthesis
* add similar helper for gsm_lchan
* add function estimating number of SI2quater message to hold configured
number of (U|E)ARFCNs
* add SI2q index/count fields and pass them to rest_octets generator
explicitly
* internalize buffer access in generate_si* functions
Change-Id: I74e4e3cb86364cec869a1472a41b4a95af0d50dd
Related: RT#8792
* set proper flag when saving MS Timing Offset
* use gsm_subscriber's IMSI or lchan's name if bsc_subscriber is unknown
* add comments with spec reference
* store/display MS Timing Offset instead of raw Timing Offset field from
RSL
* Compute MS Timing Offset [-63; 192] from Timing Offset field [0; 255],
adjust structure gsm_meas_rep with proper type to store it
Change-Id: I7e003d23a6edb714c5f17688fd6a8edac131161d
Related: OS#1574
* add version string to gsm_bts
* add PCU version string to gsm_bts
* rename GSM_BTS_TYPE_OSMO_SYSMO -> GSM_BTS_OSMOBTS to avoid confusion
between BTS model and variant
* add variant enum to gsm_bts_model using enum with variants for each
hw vendor of OsmoBTS
* show connected PCU version (if available) in vty via 'show bts'
This will come in handy when logging details regarding particular BTS
reported via OML, see:
Related: OS#1614
Change-Id: I6710d53115f34634a7b70969cc05fd5c72ff8ab2
This option allows to enable or disable TCH/F allocation on the
TCH/F_TCH/H_PDCH timeslots. Until now, source code modification
was required to enable this feature.
Related: OS#1778
Change-Id: Id18cab25844dc854a66b4e2713e90c3f43afa712
From a human admin viewpoint it doesn't make sense to count the messages sent:
When we use TMSIs, we first send a LU Accept with a new TMSI, and then expect
the MS to respond with a TMSI Realloc Complete message. When that fails to come
through, the LU actually ends in failure, even though a LU Accept was sent.
If a conn breaks/vanishes during LU, we cancel the LU without sending any reply
at all, so the failed LU would not be counted.
Instead, count Location Updating results, i.e. completion and failures.
(With the new VLR developments, LU counters need to be triggered in completely
different places, and this patch prepares for that by providing sensible
counters.)
Change-Id: I03f14c6a2f7ec5e1d3ba401e32082476fc7b0cc6
ericsson can handle a reference at the end of a imm assign command which is used in
the confirm response. The confirm response is only sent if the trailer is present.
Change-Id: I88560291b5a3a3d7a0bac4d3c089b45f1f6b297f
When the BTS is configured to use a SuperChannel and it is using a
unix domain socket based transport towards the L2TP daemon, then
we must instruct the L2TP daemon to instruct the SIU to change the Abis
Lower Transport Mode using the ALTCRQ / ALTCRP L2TP signalling.
Change-Id: I672bfaa09c42fbeb0c8459f24b2222b952de954b
In a future commit, gsm_subscriber will be replaced by vlr_subscr, and it will
not make sense to use vlr_subscr in libbsc. Thus we need a dedicated BSC
subscriber: struct bsc_subscr.
Add rf_policy arg to bsc_grace_paging_request() because the bsc_subscr will no
longer have a backpointer to gsm_network (used to be via subscr->group).
Create a separate logging filter for the new BSC subscriber. The implementation
of adjusting the filter context is added in libbsc to not introduce
bsc_subscr_get/_put() dependencies to libcommon.
During Paging Response, fetch a bsc_subscr from the mobile identity, like we do
for the gsm_subscriber. It looks like a duplication now, but will make sense
for the VLR as well as for future MSC split patches.
Naming: it was requested to not name the new struct bsc_sub, because 'sub' is
too ambiguous. At the same time it would be fine to have 'bsc_sub_' as function
prefix. Instead of struct bsc_subscriber and bsc_sub_ prefix, I decided to
match both up as struct bsc_subscr and bsc_subscr_ function prefix. It's fast
to type, relatively short, unambiguous, and the naming is consistent.
Add bsc_subscr unit test.
Related: OS#1592, OS#1594
Change-Id: Ia61cc00e8bb186b976939a4fc8f7cf9ce6aa3d8e
Add MS TIMING OFFSET (3GPP TS 48.058 § 8.4.8) and P offset (3GPP TS
45.010 § 1.2) which can be used to compute MS TO from known TA.
This will be used by osmo-bts (see
I4dfe5c48834a083e757d5de3236a02e15a238b28) to provide MS TO as part of
RSL MEASUREMENT RESULT.
Change-Id: I8bda57c8d6c15bbb803eca708931556dae118a00
Related: OS#1574
Add via_ran to gsm_subscriber_connection to indicate whether a conn is coming
in via 2G/GERAN/A-Interface or 3G/UTRAN/Iu-Interface. Prepares for Iu, but
also for libvlr to decide between GSM or UMTS Auth.
Until actual Iu support is merged to master, this indicator will aid VLR unit
testing.
At some point we may also add RAN_GERAN_IU; it's not on the agenda yet, but to
clearly distinguish the names if we want to add it, explicitly name the ones we
have RAN_GERAN_A and RAN_UTRAN_IU.
Change-Id: I93b870522f725170e4265a5543f6b680383d7465
Remove the fuzzer interface that was partially implemented in
gsm_04_08.c and silent_call.c is causing problems when an
SMS is sent during an active silent call. The reason for this
is that gsm0408_dispatch() in gsm_04_08.c would decide to
rout all uplink traffic to silent_call_rx() in silent_call.c.
silent_call_rx() is a stub function that discards the data.
This patch removes the fuzzer interface code by placing ifdefs
around it, so that it can be re-activated by experimentators.
Change-Id: Id500197d58663b3f4b1756136343670388b0a4bc
The general infrastructure for UMTS AKA is already in place:
* GSUP with capability to send us auth_vectors that contain
either triplets or quintuples
* mm_context that holds such auth_vectors
Add:
* capability to send UMTS AUTN in GMM AUTH REQ
* parse extended UMTS RES
* on auth response, validate expected AKA with vector and received res/sres
* add Auth Failure message to receive resync AUTS token and
* send to HLR
* clear out-of-sync auth tuple
* enter new state for when we're waiting for HLR to resync and send new
tuples so that the next Auth Request will be handled
Original first half of this patch by: Harald Welte <laforge@gnumonks.org>
Full UMTS AKA procedure including AUTS resync tested to work against OsmoHLR
with R99 USIM and Milenage algorithm.
The sgsn_test.c needs adjustment because we're checking the vector's auth_types
now.
Depends: libosmocore change-ids
I277fb3d407396dffa5c07a9c5454d87a415d393f
If943731a78089f0aac3d55245de80596d01314a4
Related: OS#1956
Change-Id: Ie6a0cefba5e4e7f02cc2eaf6ec006ac07d5c1816
Prepare for replacing gsm_subscriber with vlr_subscriber. vlr_subscriber will
not make sense to be used in gprs, so have a dedicated GPRS subscriber struct.
(Could change if the gprs code were to use libvlr; is currently independent).
Related: OS#1592
Change-Id: Ia8b391ee009c8545763cba04505be3947835120e
With the OsmoMSC program coming up, the name osmo_msc_data becomes even
more confusing than it already is. Clearly indicate it as libbsc's data of
a remote MSC by prefixing with bsc_.
Also, the Osmocom community has in the meantime agreed to have the osmo_
prefix only in libosmocore, to avoid naming conflicts in case things are
moved there. So while renaming anyway, also drop the osmo_ prefix.
Change-Id: I0dfbcb7d1a579211180f71319982820d8700afab
With the OsmoMSC program coming up, the name osmo_msc_data becomes even
more confusing than it already is. Clearly indicate it as libbsc's data of
a remote MSC by prefixing with bsc_.
Also, the Osmocom community has in the meantime agreed to have the osmo_
prefix only in libosmocore, to avoid naming conflicts in case things are
moved there. So while renaming anyway, also drop the osmo_ prefix.
Change-Id: I13554563ce9289de126ba0d4cf329bafcda35607
We're discarding the name OsmoCSCN for the benefit of OsmoMSC. But "CSCN" has
already crept into the master branch in two places; apply the rename.
See OS#1958
Change-Id: Ib4274eb3c172ada1fe7f05746740b456370bc93d
Doesn't make sense to switch this to struct vlr_subscr when it isn't used at
all. So let's remove it.
Change-Id: Ifa5901f8bf1aed3981841d24d4ec8d659f3de7a9
The LCHAN and BTS filter contexts are actually never used, so drop them until
someone adds them properly.
For now use only LOGGING_{FILTER,CTX}_VLR_SUBSCR. Some of these will change to
_BSC_SUBSCR once struct bsc_subscriber is introduced, and later on, struct
gsm_subscriber will be replaced by vlr_subscriber so that the names will match.
Depends: libosmocore change-id I5c343630020f4b108099696fd96c2111614c8067
Change-Id: Ifa82f6a461ad4c0eeddb8a38fb3833460432d16b
Since ce9fec3e896571835ac5bfd2980d6836f2b29f0d libosmocore ignores
parameters to log_vty_command_* functions. Hence parameter of
logging_vty_add_cmds() is ignored too. As we depend on much later
libosmocore version anyway, we can simplify code somewhat by removing
parameters which will be ignored anyway.
Change-Id: I62f752fd88f1d8fefa563648f9864c7c31f87991
Postfix the ran type to clarify the purpose.
Because of the new support of the Iu ran type, there are 2 functions to allocate a mm ctx.
For Iu it's sgsn_mm_ctx_alloc_iu(). For gb it should be named in the same way.
Change-Id: Ic49009e8c20c12308855e1409c09004698c79b95
To be able to do R99 UMTS authentication, we need to send along AUTN bytes in
the Authentication Request. Add autn parameter to gsm48_tx_mm_auth_req() and
conditionally append the R99 AUTN TLV to the Authentication Request message.
Change-Id: I0d644559088706aa06b42b9bfe1f8c21ca6fa4da
Harald Welte
Max
Philipp Maier
Neels Hofmeyr