July 2013 - OpenBSC - lists.osmocom.org

Re: Osmo-nitb v_0.13.0.48-9e22 broke compatibility with Nokia InSite

by Sipos Csaba

Hi Holger, I was able to narrow it down, and it seems this is the patch that causing the problem: http://cgit.osmocom.org/libosmocore/commit/?id=f5a079f739c57d8be7c59149fd45… Up to that patch it works (more or less), but after I applied it, I got this seg faults. I don't know how to do back traces but I try to get some info about this topic and will send the results. Csaba

10 years, 8 months

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Adding SDR Drivers

by Ash Gibbons

Hello, I am wonder how to add support for other Transceivers, in particular the BladeRF ( http://nuand.com/ ). If anyone has a start point for me to learn how to do this, it would be fantastic! Many thanks

10 years, 8 months

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Re: SGSN Crash Report

by Holger Hans Peter Freyther

On Tue, Jul 02, 2013 at 11:51:49PM -0700, Caleb Pal wrote: > Holger, Hi, I have a reliable re-producer of the issue. It happens when the PCU is dead and we still receive segmented data from the GGSN. The re-producer is inside a branch of mine of the OsmoPCU code[1]. The commit message has some information about how to re-produce (what is missing is the ACL config of the SGSN to allow this test). Maybe you want to try to fix the issue based on this setup? kind regards holger [1] http://git.osmocom.org/osmo-pcu/commit/?h=zecke/features/emulator&id=a727a2…

10 years, 8 months

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[PATCH] SGSN: set pctx->lib = NULL after calling pdp_freepdp(pctx->lib)

by Harald Welte

If we don't do this, we will generate a bogus warning in gprs_sgsn:sgsn_pdp_ctx_free() when we release a pctx which still has the lib pointer set to non-NULL. At the same point, we introduce an OSMO_ASSERT() to verify that the pctx->lib really equals the pdp context which libgtp reported to us. --- openbsc/src/gprs/sgsn_libgtp.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c index f2eb35d..c244e2c 100644 --- a/openbsc/src/gprs/sgsn_libgtp.c +++ b/openbsc/src/gprs/sgsn_libgtp.c @@ -264,6 +264,10 @@ static int create_pdp_conf(struct pdp_t *pdp, void *cbp, int cause) DEBUGP(DGPRS, "Received CREATE PDP CTX CONF, cause=%d(%s)\n", cause, get_value_string(gtp_cause_strs, cause)); + /* make sure that libgtp doesn't call us with inconsistent + * pointers */ + OSMO_ASSERT(pctx->lib == pdp); + /* Check for cause value if it was really successful */ if (cause < 0) { LOGP(DGPRS, LOGL_NOTICE, "Create PDP ctx req timed out\n"); @@ -292,8 +296,13 @@ static int create_pdp_conf(struct pdp_t *pdp, void *cbp, int cause) reject: pctx->state = PDP_STATE_NONE; - if (pdp) + if (pdp) { pdp_freepdp(pdp); + /* unlink the now non-existing library handle from the + * pdp context */ + pctx->lib = NULL; + } + /* Send PDP CTX ACT REJ to MS */ rc = gsm48_tx_gsm_act_pdp_rej(pctx->mm, pctx->ti, reject_cause, 0, NULL); -- 1.8.3.2 -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

10 years, 8 months

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TLLI problems and proposed solution

by Holger Hans Peter Freyther

Dear LaF0rge, I pushed "zecke/features/emulator" to the osmo-pcu repository. All it does is to send a static GPRS Attach for a foreign TLLI. Looking at the communication with Wireshark one will see: Identity Requests messages.. always with N(U) = 0 and in the SGSN log one can see: <0012> gprs_llc.c:773 LLC RX: unknown TLLI 0xadf11820, creating LLME on the fly ... <0012> gprs_llc.c:357 LLC TX: unknown TLLI 0xedf11820, creating LLME on the fly What happens is the following: When receiving the GPRS Attach we create a LLME for the 'foreign' TLLI, but the look-up will never compare tlli/old_tlli with the foreign one. It will always be localized. The smallest change is this one: diff --git a/openbsc/src/gprs/gprs_llc.c b/openbsc/src/gprs/gprs_llc.c index 8af5367..52727ce 100644 --- a/openbsc/src/gprs/gprs_llc.c +++ b/openbsc/src/gprs/gprs_llc.c @@ -777,9 +777,10 @@ int gprs_llc_rcvmsg(struct msgb *msg, struct tlv_parsed *tv) (llhp.cmd == GPRS_LLC_XID || llhp.cmd == GPRS_LLC_UI)) { struct gprs_llc_llme *llme; /* FIXME: don't use the TLLI but the 0xFFFF unassigned? */ - llme = llme_alloc(msgb_tlli(msg)); + llme = llme_alloc(tlli_foreign2local(msgb_tlli(msg))); LOGP(DLLC, LOGL_DEBUG, "LLC RX: unknown TLLI 0x%08x, " - "creating LLME on the fly\n", msgb_tlli(msg)); + "creating LLME on the fly\n", + tlli_foreign2local(msgb_tlli(msg))); lle = &llme->lle[llhp.sapi]; } else { LOGP(DLLC, LOGL_NOTICE, (but one could move that into llme_alloc and then it works for RX/TX). After this patch the Identity Request requests will have an increasting N(U) and the tlli in the message will be 0xadf11820. The SGSN will still print: <0012> gprs_llc.c:142 TLLI 0xadf11820 is foreign, converting to local TLLI 0xedf11820 So this means that for the entire GPRS attach procedure we will use the initial foreign TLLI.... so somehow... the code in the MM handling... /* Even if there is no P-TMSI allocated, the MS will switch from * foreign TLLI to local TLLI */ ctx->tlli_new = gprs_tmsi2tlli(ctx->p_tmsi, TLLI_LOCAL); /* Inform LLC layer about new TLLI but keep old active */ gprs_llgmm_assign(ctx->llme, ctx->tlli, ctx->tlli_new, GPRS_ALGO_GEA0, NULL); So this tlli_new does not appear to be used at all and I don't see how/where we would use/create the OLD_TLLI IE? Is it implemented? holger

10 years, 8 months

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[PATCH 2/2] gprs_llc: Assert that we send frames with either tlli or old_tlli

by Holger Hans Peter Freyther

In case we have access to the context verify that the selected msgb_tlli is either the old_tlli or the tlli. It is wrong to use any other TLLI. --- openbsc/src/gprs/gprs_llc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/openbsc/src/gprs/gprs_llc.c b/openbsc/src/gprs/gprs_llc.c index 57e557a..c3bd9d2 100644 --- a/openbsc/src/gprs/gprs_llc.c +++ b/openbsc/src/gprs/gprs_llc.c @@ -52,6 +52,10 @@ static int _bssgp_tx_dl_ud(struct msgb *msg, struct sgsn_mm_ctx *mmctx) dup.drx_parms = mmctx->drx_parms; dup.ms_ra_cap.len = mmctx->ms_radio_access_capa.len; dup.ms_ra_cap.v = mmctx->ms_radio_access_capa.buf; + + /* make sure we only send it to the right llme */ + OSMO_ASSERT(msgb_tlli(msg) == mmctx->llme->tlli + || msgb_tlli(msg) == mmctx->llme->old_tlli); } memcpy(&dup.qos_profile, qos_profile_default, sizeof(qos_profile_default)); -- 1.8.3.2 --UugvWAfsgieZRqgk--

10 years, 8 months

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7 patches

by Andreas Eversberg

hi, these 7 patches have been tested with sysmobts and osmo-bts (trx interface). it works with calls and gprs. before applying any of these patches, i suggest to double check it with a different test setup. regards, andreas

10 years, 8 months

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[PATCH 1/2] gprs_llc: Lookup lle based on the real TLLI

by Holger Hans Peter Freyther

During the GPRS Attach procedure we might have a foreign tlli and in the RX create a LLME on the fly for this tlli. The GMM GPRS Attach handling code will then assign a new TLLI and keep the foreign tlli as the llme->old_tlli. When the GMM is sending the identity request the msgb_tlli will point to the foreign tlli. The GPRS LLC code will then try to find that foreign tlli but due the conversion this will not be found. Instead a new ad-hoc LLE/LLME will be created on the fly for each message (this means there are duplicate LLE/LLMEs in the list). Make the code more strict and remove the tlli_foreign2local change from the look-up routine. This will make the GPRS LLC code find the right LLE/LLME and the N(U) will be handled correctly. Addresses: <0012> gprs_llc.c:773 LLC RX: unknown TLLI 0xadf11820, creating LLME on the fly ... <0012> gprs_llc.c:357 LLC TX: unknown TLLI 0xedf11820, creating LLME on the fly Reproducable: Use pcu_emu (gprs attach) and observe with wireshark. --- openbsc/src/gprs/gprs_llc.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/openbsc/src/gprs/gprs_llc.c b/openbsc/src/gprs/gprs_llc.c index 8af5367..57e557a 100644 --- a/openbsc/src/gprs/gprs_llc.c +++ b/openbsc/src/gprs/gprs_llc.c @@ -147,12 +147,10 @@ static inline uint32_t tlli_foreign2local(uint32_t tlli) } /* lookup LLC Entity based on DLCI (TLLI+SAPI tuple) */ -static struct gprs_llc_lle *lle_by_tlli_sapi(uint32_t tlli, uint8_t sapi) +static struct gprs_llc_lle *lle_by_tlli_sapi(const uint32_t tlli, uint8_t sapi) { struct gprs_llc_llme *llme; - tlli = tlli_foreign2local(tlli); - llist_for_each_entry(llme, &gprs_llc_llmes, list) { if (llme->tlli == tlli || llme->old_tlli == tlli) return &llme->lle[sapi]; -- 1.8.3.2 --UugvWAfsgieZRqgk Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="0002-gprs_llc-Assert-that-we-send-frames-with-either-tlli.patch"

10 years, 8 months

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[PATCH] Add vty command for setting Access control classes

by Ivan Kluchnikov

Hi all, Attached patch adds vty command for setting Access control classes (GSM 02.11 Section 4 Access control) in RACH Control Parameters (GSM 04.08 Section 10.5.2.29 RACH Control Parameters). -- Regards, Ivan Kluchnikov. http://fairwaves.ru

10 years, 8 months

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Nokia InSite handover

by Sipos Csaba

Today, after I successfully started two InSite BTS units on the same E1 line, I tried to test the OpenBSC handover function. I got a strange error message, that I have to enable RTP Proxy mode with "-P" in osmo-nitb. Because these units are running from E1, I just simply ask: do we have handover support for E1 based BTSs? Cell reselection and inter BTS voice calls, SMSs are working just fine. BR, Csaba

10 years, 9 months

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GPRS roaming

by Andreas Eversberg

hi harald, i know that you talked about before so maybe you can give me a hint. i like to make osmo-sgsn allow roaming (different PLMN of the phone than the one in the RAI of the BTS). regards, andreas

10 years, 9 months

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Dropping support for the HSL bts

by Holger Hans Peter Freyther

Good Morning Harald, do you mind if we drop support for the HSL BTS? The support is spewing out compile warnings, now turns up in coverity reports as well and we don't even know if it is working with the latest version of the software running on these BTS. holger

10 years, 9 months

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Any BS11 user please test the following patch

by Holger Hans Peter Freyther

Hi, Coverity pointed out a missing break. I have added it now but the fix might break BS11 code that relied on this broken functionality. Could anyone with a BS11 please test this? I will integrate the change in a week. holger

10 years, 9 months

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DAHDI and LAPd errors

by Sipos Csaba

Dear Members, From the beginning I am having various LAPd related error messages with Nokia InSite and a DAHDI E1 card. The LAPd connection resets itself several times before a working OML and RSL connection is made. I don't know, maybe this is due to a change in the DAHDI code. I am getting lapd errors during the BTS initialization like this one: ^[[0;m^[[1;36mTue Jul 16 13:55:10 2013 <0005> bsc_init.c:91 shutting down OML for BTS 0 ^[[0;mTue Jul 16 13:55:14 2013 <0018> input/lapd.c:159 LAPD state change on TEI 1: NONE -> ASSIGNED ^[[0;mTue Jul 16 13:55:14 2013 <0018> input/lapd.c:212 LAPD Allocating SAP for SAPI=62 / TEI=1 ^[[0;mTue Jul 16 13:55:14 2013 <0018> input/lapd.c:223 k=1 N200=3 N201=260 T200=1.0 T203=10.0 ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:292 Init DL layer: sequence range = 128, k = 1, history range = 2 ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:229 new state LAPD_STATE_NULL -> LAPD_STATE_IDLE ^[[0;mTue Jul 16 13:55:14 2013 <0018> input/lapd.c:485 LAPD DL-ESTABLISH request TEI=1 SAPI=62 ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:2171 Message DL-ESTABLISH-REQUEST received in state LAPD_STATE_IDLE ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:1685 perform normal establishm. (SABM) ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:229 new state LAPD_STATE_IDLE -> LAPD_STATE_SABM_SENT ^[[0;mTue Jul 16 13:55:14 2013 <0018> input/lapd.c:600 TX: fa 03 7f ^[[0;mTue Jul 16 13:55:14 2013 <0018> lapd_core.c:198 start T200 ^[[0;m^[[1;38mTue Jul 16 13:55:14 2013 <001d> sms_queue.c:220 Attempting to send 20 SMS ^[[0;m^[[1;38mTue Jul 16 13:55:14 2013 <001d> sms_queue.c:280 SMSqueue added 0 messages in 0 rounds ^[[0;mTue Jul 16 13:55:15 2013 <0018> lapd_core.c:551 Timeout T200 (0x822cb80) state=5 ^[[0;mTue Jul 16 13:55:15 2013 <0018> input/lapd.c:600 TX: fa 03 7f ^[[0;mTue Jul 16 13:55:15 2013 <0018> lapd_core.c:198 start T200 ^[[0;mTue Jul 16 13:55:16 2013 <0018> lapd_core.c:551 Timeout T200 (0x822cb80) state=5 ^[[0;mTue Jul 16 13:55:16 2013 <0018> input/lapd.c:600 TX: fa 03 7f ^[[0;mTue Jul 16 13:55:16 2013 <0018> lapd_core.c:198 start T200 ^[[0;mTue Jul 16 13:55:17 2013 <0018> lapd_core.c:551 Timeout T200 (0x822cb80) state=5 ^[[0;mTue Jul 16 13:55:17 2013 <0018> input/lapd.c:600 TX: fa 03 7f ^[[0;mTue Jul 16 13:55:17 2013 <0018> lapd_core.c:198 start T200 ^[[0;mTue Jul 16 13:55:18 2013 <0018> lapd_core.c:551 Timeout T200 (0x822cb80) state=5 ^[[0;mTue Jul 16 13:55:18 2013 <0018> input/lapd.c:628 LAPD DL-RELEASE indication TEI=1 SAPI=62 ^[[0;mTue Jul 16 13:55:18 2013 <0018> lapd_core.c:307 Resetting LAPDm instance ^[[0;mTue Jul 16 13:55:18 2013 <0018> lapd_core.c:229 new state LAPD_STATE_SABM_SENT -> LAPD_STATE_IDLE ^[[0;mTue Jul 16 13:55:18 2013 <0018> lapd_core.c:384 sending MDL-ERROR-IND cause 1 ^[[0;mTue Jul 16 13:55:18 2013 <0018> lapd_core.c:229 new state LAPD_STATE_IDLE -> LAPD_STATE_IDLE ^[[0;m^[[1;36mTue Jul 16 13:55:33 2013 <0005> bsc_init.c:91 shutting down OML for BTS 0 Anyway, it would be nice to know a recommended DAHDI version and/or kernel version which is used during the development or something. For example - as I mentioned it earlier - DAHDI 2.7.x breaks the compatibility with OpenBSC due to the changed addressing scheme. BR, Csaba

10 years, 9 months

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Fixing power off in osmo-trx

by Alexander Chemeris

Hi Thomas, I've made some progress in making osmo-trx able to power off/on without restart. At this moment it's almost there - the only big remaining issue I see is some bug with UHD device start/stop. It seems we do not re-initialize it properly and assert (num_rd == OUTCHUNK) fails. I hope you could fix that. I completely re-wrote Thread class to make starting/stopping threads a synchronous reliable operation. I also introduced shutdown() function to FIFOServiceLoopThread, ControlServiceLoopThread and TransmitPriorityQueueServiceLoopThread. This method takes care of un-blocking a thread from a blocking read from a queue or a socket. Few bugs in the other code is fixed as well. Details are below, please review the patches. Patch set is checked into https://github.com/fairwaves/osmo-trx under achemeris/stable_threads and achemeris/poweroff_hack branches. > commit c5da6607b4d17706380de72e0814e28f03624c51 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 14:57:14 2013 +0400 > > Transceiver52M: Fix crash in uhd_device destructor due to deleting statically allocated memory. This is a genuine bug, should be fixed upstream. > commit dbd27a60b6ed99fd6fd2339ffafccc0d759fa2fc > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sat Jul 13 21:26:39 2013 +0400 > > CommonLibs: Fix compile time warnings. Fixes annoying warning. > commit 8eaa40dd6c2a783306d809aec98c2937e15068f3 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 16:23:32 2013 +0400 > > Transceiver52M: Remove unused thread mAlignRadioServiceLoopThread; This actually leads to crash when Thread class is abstract. > commit b8646946526903d2bbfa657690936b9bcba80ca5 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sat Jul 13 22:29:12 2013 +0400 > > CommonLibs: DEBUG: Mark interthread classes which are not used in OsmoTRX. I've added this comments just to simplify debugging. I.e. I don't want to debug interthread primitives which we do not use. > commit 69b6a6dfcd882df180e9d5e9856225f4b1d2eeed > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 01:43:04 2013 +0400 > > CommonLibs: Allow NULLs to be retrieved from InterthreadQueue. > > We need a way to stop InterthreadQueue blocking read to be able to shutdown > a thread. The easiest way to do that is to push NULL to the queue, but the > original implementation will just ignore that and continue blocking. After > the change the blocking read() will exit with NULL result which is perfectly > fine with us. > > Ideally we should change all methods of InterthreadQueue to return a status > value to indicate normal exits, timeouts, etc. Right now the only way to > indicate an error is returning NULL, which could be a valid operation. > > commit d4a8c1360e5d54188b648766dde199fa37f2ed27 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 02:00:00 2013 +0400 > > CommonLibs: Add shutdown() method to the DatagramSocket class. > > This method is useful to abort a blocking operations on a socket during shutdown. > > commit 302a9198df85e4f771368f24d8445dec7c8b2203 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 12:04:44 2013 +0400 > > CommonLibs: Signal::wait() should return the value which pthread_cond_timedwait() returns. > > commit e279124660a2add686e6c9266d18a9bb0cf43258 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 12:38:25 2013 +0400 > > CommonLibs: Rewrite Threads class to be predictable during start/stop. > > Current implementation strictly synchronize thread startup and shutdown > to make sure a thread is actually started on startThread() exit and > that it's stopped on stopThread() exit (or an error is returned). > > I also changed the Thread class to be used as a parent class for > an actual thread. This way we could provide much better logical > separation between variables used by different threads. Which will > (hopefully) reduce number of issues with inter-thread communications. > > commit de202e343564913e0591de10850e617d7de55b6b > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 12:42:52 2013 +0400 > > Transceiver52M: Port all threads to the new Thread interface. > > Also note that we introduced shutdown() method for Transceiver threads which > implement proper shutdown of threads when they are in blocking read state. > This involves using shutdown() on sockets and pushing NULL to queues. > > With this change we should be able to start/stop transceiver channels at > arbitrary moments. > > commit 129ad76b15f1fdf0588d5a24fe2d0f7ef3df274e > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 12:48:37 2013 +0400 > > Transceiver52M: Delay is no longer needed at the transceiver exit, threads should shut down cleanly. > > commit 604f65e69f2317dd5dc1aeb8faf3c107cd8a2231 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 13:22:31 2013 +0400 > > CommonLibs: Port InterthreadTest and SocketsTest to the new Thread API. > > commit c4038ef54c806c8c00f7fa28bc2b8b200bc3356f > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 13:24:16 2013 +0400 > > CommonLibs: Adding a new ThreadsTest testsuite. > > It's very basic at this moment. We should add a stress-test for thread > start/stop at least. This is the meat of the branch. At this stage everything works fine, threads are shutdown properly, but power off command still doesn't power off the transceiver. > commit c0f0da4ec8e0068a562f427a89a899bf190bc74a > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 23:07:31 2013 +0400 > > Transceiver52M: HACK: Exit transceiver on POWEROFF command. > > This hack allows OsmoBTS to correctly restart itself with different parameters. > We assume that transceiver is run as a service and will be restarted on exit. > > commit 806a64b1df40871543e9ae34386463d08a564147 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 22:58:55 2013 +0400 > > Transceiver52M: Start and stop all threads on POWERON/POWEROFF. > > This change reveals some issue with the UHD start/stop code. Specifically, > we get a failed assert in RadioInterface::pullBuffer() (num_rd == OUTCHUNK > with num_rd=0) with the POWERON/POWEROFF/POWERON sequence. These patches implements actual power off command. They are split into a separate branch, because they lead to assert failure I mentioned above. In my setup it's 100% reproducible. I hope you could fix that. > commit 4c39dd4b492b439742911aa70623d41ad634d7f4 > Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com> > Date: Sun Jul 14 22:45:40 2013 +0400 > > Transceiver52M: Introduce usage counting for DriveLoop and RadioInterface. > > The reason is to allow them to be started from any TRX. I.e. they are started > when the first TRX starts and stopped when the last TRX stops. This hack is a workaround for the assert failure above - it shuts down the complete transceiver in a hope that it will be restarted by external means. Meant as to be used in production while we don't have the assert failure fixed. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

10 years, 9 months

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[PATCH 1/7] Remove obsolete osmo-bts-bb code

by Andreas Eversberg

--- configure.ac | 1 - src/Makefile.am | 2 +- src/osmo-bts-bb/Makefile.am | 8 -- src/osmo-bts-bb/l1ctl.c | 304 -------------------------------------------- src/osmo-bts-bb/main.c | 215 ------------------------------- 5 files changed, 1 insertion(+), 529 deletions(-) delete mode 100644 src/osmo-bts-bb/Makefile.am delete mode 100644 src/osmo-bts-bb/l1ctl.c delete mode 100644 src/osmo-bts-bb/main.c diff --git a/configure.ac b/configure.ac index 5abed70..1ca0dbe 100644 --- a/configure.ac +++ b/configure.ac @@ -54,7 +54,6 @@ AC_OUTPUT( src/Makefile src/common/Makefile src/osmo-bts-sysmo/Makefile -dnl src/osmo-bts-bb/Makefile include/Makefile include/osmo-bts/Makefile tests/Makefile diff --git a/src/Makefile.am b/src/Makefile.am index 92bbed9..e2eab0d 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1,4 +1,4 @@ -SUBDIRS = common #osmo-bts-bb +SUBDIRS = common if ENABLE_SYSMOBTS SUBDIRS += osmo-bts-sysmo diff --git a/src/osmo-bts-bb/Makefile.am b/src/osmo-bts-bb/Makefile.am deleted file mode 100644 index 022931a..0000000 --- a/src/osmo-bts-bb/Makefile.am +++ /dev/null @@ -1,8 +0,0 @@ -AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include -AM_CFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) -LDADD = $(LIBOSMOCORE_LIBS) - -bin_PROGRAMS = osmo-bts-bb - -osmo_bts_bb_SOURCES = main.c -osmo_bts_bb_LDADD = $(top_builddir)/src/common/libbts.a $(LDADD) diff --git a/src/osmo-bts-bb/l1ctl.c b/src/osmo-bts-bb/l1ctl.c deleted file mode 100644 index ccba37b..0000000 --- a/src/osmo-bts-bb/l1ctl.c +++ /dev/null @@ -1,304 +0,0 @@ -/* Layer1 control code, talking L1CTL protocol with L1 on the phone */ - -/* (C) 2010 by Holger Hans Peter Freyther <zecke(a)selfish.org> - * (C) 2010 by Harald Welte <laforge(a)gnumonks.org> - * (C) 2011 by Andreas Eversberg <jolly(a)eversberg.eu> - * - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#include <stdio.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> - -#include <arpa/inet.h> - -#include <l1ctl_proto.h> - -#include <osmocom/core/signal.h> -#include <osmocom/core/timer.h> -#include <osmocom/core/msgb.h> -#include <osmocom/gsm/tlv.h> -#include <osmocom/gsm/gsm_utils.h> -#include <osmocom/gsm/gsmtap_util.h> -#include <osmocom/gsm/protocol/gsm_04_08.h> -#include <osmocom/gsm/protocol/gsm_08_58.h> -#include <osmocom/gsm/rsl.h> - -#include <osmocom/bb/common/l1ctl.h> -#include <osmocom/bb/common/osmocom_data.h> -#include <osmocom/bb/common/l1l2_interface.h> -#include <osmocom/bb/common/lapdm.h> -#include <osmo-bts/logging.h> -#include <osmo-bts/abis.h> -#include <osmo-bts/rtp.h> -#include <osmo-bts/bts.h> - -static struct msgb *osmo_l1_alloc(uint8_t msg_type) -{ - struct l1ctl_hdr *l1h; - struct msgb *msg = msgb_alloc_headroom(256, 4, "osmo_l1"); - - if (!msg) { - LOGP(DL1C, LOGL_ERROR, "Failed to allocate memory.\n"); - return NULL; - } - - msg->l1h = msgb_put(msg, sizeof(*l1h)); - l1h = (struct l1ctl_hdr *) msg->l1h; - l1h->msg_type = msg_type; - - return msg; -} - - -static int osmo_make_band_arfcn(struct osmocom_ms *ms, uint16_t arfcn) -{ - /* TODO: Include the band */ - return arfcn; -} - -/* Receive L1CTL_DATA_IND (Data Indication from L1) */ -int rx_ph_data_ind(struct osmocom_ms *ms, struct msgb *msg) -{ - struct l1ctl_info_dl *dl, dl_cpy; - struct l1ctl_data_ind *ccch; - struct lapdm_entity *le; - struct rx_meas_stat *meas = &ms->meas; - uint8_t chan_type, chan_ts, chan_ss; - uint8_t gsmtap_chan_type; - struct gsm_time tm; - struct osmobts_ms *bts_ms = container_of(ms, struct osmobts_ms, ms); - struct osmobts_lchan *lchan; - - if (msgb_l3len(msg) < sizeof(*ccch)) { - LOGP(DL1C, LOGL_ERROR, "MSG too short Data Ind: %u\n", - msgb_l3len(msg)); - msgb_free(msg); - return -1; - } - - dl = (struct l1ctl_info_dl *) msg->l1h; - msg->l2h = dl->payload; - ccch = (struct l1ctl_data_ind *) msg->l2h; - - gsm_fn2gsmtime(&tm, ntohl(dl->frame_nr)); - rsl_dec_chan_nr(dl->chan_nr, &chan_type, &chan_ss, &chan_ts); - lchan = bts_ms->trx->slot[chan_ts].lchan[chan_ss]; - if (!lchan) { - LOGP(DL1C, LOGL_ERROR, "Data IND for non existing lchan\n"); - msgb_free(msg); - return -1; - } - LOGP(DL1C, LOGL_NOTICE, "RX: %s | %s(%.4u/%.2u/%.2u) %d dBm\n", - rsl_chan_nr_str(dl->chan_nr), - hexdump(ccch->data, sizeof(ccch->data)), - tm.t1, tm.t2, tm.t3, (int)dl->rx_level-110); - - meas->last_fn = ntohl(dl->frame_nr); - meas->frames++; - meas->snr += dl->snr; - meas->berr += dl->num_biterr; - meas->rxlev += dl->rx_level; - - if (dl->fire_crc >= 2) { - LOGP(DL1C, LOGL_NOTICE, "Dropping frame with %u bit errors\n", - dl->num_biterr); - msgb_free(msg); - return 0; - } - - /* send CCCH data via GSMTAP */ - gsmtap_chan_type = chantype_rsl2gsmtap(chan_type, dl->link_id); - gsmtap_sendmsg(ntohs(dl->band_arfcn), chan_ts, gsmtap_chan_type, chan_ss, - tm.fn, dl->rx_level-110, dl->snr, ccch->data, - sizeof(ccch->data)); - - /* determine LAPDm entity based on SACCH or not */ - if (dl->link_id & 0x40) - le = &lchan->l2_entity.lapdm_acch; - else - le = &lchan->l2_entity.lapdm_dcch; - /* make local stack copy of l1ctl_info_dl, as LAPDm will - * overwrite skb hdr */ - memcpy(&dl_cpy, dl, sizeof(dl_cpy)); - - /* pull the L1 header from the msgb */ - msgb_pull(msg, msg->l2h - (msg->l1h-sizeof(struct l1ctl_hdr))); - msg->l1h = NULL; - - /* send it up into LAPDm */ - l2_ph_data_ind(msg, le, &dl_cpy); - - return 0; -} - -/* Receive L1CTL_DATA_CONF (Data Confirm from L1) */ -static int rx_ph_data_conf(struct osmocom_ms *ms, struct msgb *msg) -{ - struct l1ctl_info_dl *dl; - struct lapdm_entity *le; - uint8_t chan_type, chan_ts, chan_ss; - struct osmobts_ms *bts_ms = container_of(ms, struct osmobts_ms, ms); - struct osmobts_lchan *lchan; - - dl = (struct l1ctl_info_dl *) msg->l1h; - - rsl_dec_chan_nr(dl->chan_nr, &chan_type, &chan_ss, &chan_ts); - lchan = bts_ms->trx->slot[chan_ts].lchan[chan_ss]; - if (!lchan) { - LOGP(DL1C, LOGL_ERROR, "Data IND for non existing lchan\n"); - msgb_free(msg); - return -1; - } - - /* determine LAPDm entity based on SACCH or not */ - if (dl->link_id & 0x40) - le = &lchan->l2_entity.lapdm_acch; - else - le = &lchan->l2_entity.lapdm_dcch; - - /* send it up into LAPDm */ - l2_ph_data_conf(msg, le); - - return 0; -} - -/* Transmit L1CTL_DATA_REQ */ -int l1ctl_tx_data_req(struct osmocom_ms *ms, struct msgb *msg, - uint8_t chan_nr, uint8_t link_id) -{ - struct l1ctl_hdr *l1h; - struct l1ctl_info_ul *l1i_ul; - uint8_t chan_type, chan_ts, chan_ss; - uint8_t gsmtap_chan_type; - - if (msgb_l2len(msg) > GSM_MACBLOCK_LEN) { - LOGP(DL1C, LOGL_ERROR, "L1 cannot handle message length " - "> 23 (%u)\n", msgb_l2len(msg)); - msgb_free(msg); - return -EINVAL; - } else if (msgb_l2len(msg) < GSM_MACBLOCK_LEN) - LOGP(DL1C, LOGL_ERROR, "L1 message length < 23 (%u) " - "doesn't seem right!\n", msgb_l2len(msg)); - - /* send copy via GSMTAP */ - rsl_dec_chan_nr(chan_nr, &chan_type, &chan_ss, &chan_ts); - gsmtap_chan_type = chantype_rsl2gsmtap(chan_type, link_id); - gsmtap_sendmsg(0|0x4000, chan_ts, gsmtap_chan_type, chan_ss, - 0, 127, 255, msg->l2h, msgb_l2len(msg)); - - LOGP(DL1C, LOGL_NOTICE, "TX: %s | %s\n", rsl_chan_nr_str(chan_nr), - hexdump(msg->l2h, msgb_l2len(msg))); - - /* prepend uplink info header */ - l1i_ul = (struct l1ctl_info_ul *) msgb_push(msg, sizeof(*l1i_ul)); - - l1i_ul->chan_nr = chan_nr; - l1i_ul->link_id = link_id; - - /* prepend l1 header */ - msg->l1h = msgb_push(msg, sizeof(*l1h)); - l1h = (struct l1ctl_hdr *) msg->l1h; - l1h->msg_type = L1CTL_DATA_REQ; - - printf("todo: transcode message\n"); - - return osmo_send_l1(ms, msg); -} - -/* Transmit L1CTL_RESET_REQ */ -int l1ctl_tx_reset_req(struct osmocom_ms *ms, uint8_t type) -{ - struct msgb *msg; - struct l1ctl_reset *res; - - msg = osmo_l1_alloc(L1CTL_RESET_REQ); - if (!msg) - return -1; - - LOGP(DL1C, LOGL_INFO, "Tx Reset Req (%u)\n", type); - res = (struct l1ctl_reset *) msgb_put(msg, sizeof(*res)); - res->type = type; - - return osmo_send_l1(ms, msg); -} - -/* Receive L1CTL_RESET_IND */ -static int rx_l1_reset(struct osmocom_ms *ms) -{ - LOGP(DL1C, LOGL_INFO, "Layer1 Reset indication\n"); - dispatch_signal(SS_L1CTL, S_L1CTL_RESET, ms); - - return 0; -} - -/* Receive incoming data from L1 using L1CTL format */ -int l1ctl_recv(struct osmocom_ms *ms, struct msgb *msg) -{ - int rc = 0; - struct l1ctl_hdr *l1h; - struct l1ctl_info_dl *dl; - - if (msgb_l2len(msg) < sizeof(*dl)) { - LOGP(DL1C, LOGL_ERROR, "Short Layer2 message: %u\n", - msgb_l2len(msg)); - msgb_free(msg); - return -1; - } - - l1h = (struct l1ctl_hdr *) msg->l1h; - - /* move the l1 header pointer to point _BEHIND_ l1ctl_hdr, - as the l1ctl header is of no interest to subsequent code */ - msg->l1h = l1h->data; - - switch (l1h->msg_type) { - case L1CTL_DATA_IND: - rc = rx_ph_data_ind(ms, msg); - break; - case L1CTL_DATA_CONF: - rc = rx_ph_data_conf(ms, msg); - break; - case L1CTL_RESET_IND: - case L1CTL_RESET_CONF: - rc = rx_l1_reset(ms); - msgb_free(msg); - break; - default: - LOGP(DL1C, LOGL_ERROR, "Unknown MSG: %u\n", l1h->msg_type); - msgb_free(msg); - break; - } - - return rc; -} - -int l1ctl_tx_param_req(struct osmocom_ms *ms, uint8_t ta, uint8_t tx_power) -{ - return -ENOTSUP; -} - -int l1ctl_tx_rach_req(struct osmocom_ms *ms, uint8_t ra, uint16_t offset, - uint8_t combined) -{ - return -ENOTSUP; -} - - diff --git a/src/osmo-bts-bb/main.c b/src/osmo-bts-bb/main.c deleted file mode 100644 index 7300b68..0000000 --- a/src/osmo-bts-bb/main.c +++ /dev/null @@ -1,215 +0,0 @@ -/* (C) 2011 by Andreas Eversberg <jolly(a)eversberg.eu> - * - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#include <netinet/in.h> -#include <osmocom/core/talloc.h> -#include <osmocom/core/signal.h> -#include <osmocom/core/timer.h> -#include <osmocom/core/select.h> -#include <osmo-bts/logging.h> -//#include <osmocom/bb/common/osmocom_data.h> -#include <osmo-bts/support.h> -#include <osmo-bts/abis.h> -#include <osmo-bts/rtp.h> -#include <osmo-bts/bts.h> - -#include <net/if.h> - -#define _GNU_SOURCE -#include <getopt.h> -#include <stdlib.h> -#include <signal.h> -#include <sys/types.h> -#include <sys/ioctl.h> -#include <netdb.h> -#include <string.h> -#include <time.h> - -struct log_target *stderr_target; -char *debugs = "DL1C:DLAPDM:DABIS:DOML:DRSL:DSUM"; - -void *l23_ctx = NULL; -static struct osmocom_bts *bts; -int debug_set = 0; -char *software_version = "0.0"; -uint8_t abis_mac[6] = { 0, 1, 2, 3, 4, 5 }; -char *bsc_host = "localhost"; -char *bts_id = "1801/0"; -int quit = 0; - -// FIXME this is a hack -static void get_mac(void) -{ - struct if_nameindex *ifn = if_nameindex(); - struct ifreq ifr; - int sock; - int ret; - - sock = socket(AF_INET, SOCK_STREAM, 0); - if (sock < 0) - return; - - memset(&ifr, 0, sizeof(ifr)); - if (!ifn) - return; - while (ifn->if_name) { - strncpy(ifr.ifr_name, ifn->if_name, sizeof(ifr.ifr_name)-1); - ret = ioctl(sock, SIOCGIFHWADDR, &ifr); - if (ret == 0 && !!memcmp(ifr.ifr_hwaddr.sa_data, - "\0\0\0\0\0\0", 6)) { - memcpy(abis_mac, ifr.ifr_hwaddr.sa_data, 6); - printf("Using MAC address of %s: " - "'%02x:%02x:%02x:%02x:%02x:%02x'\n", - ifn->if_name, - abis_mac[0], abis_mac[1], abis_mac[2], - abis_mac[3], abis_mac[4], abis_mac[5]); - break; - } - ifn++; - } -// if_freenameindex(ifn); -} - -static void print_usage(const char *app) -{ - printf("Usage: %s [option]\n", app); - printf(" -h --help this text\n"); - printf(" -d --debug Change debug flags. (-d %s)\n", debugs); - printf(" -i --bsc-ip IP address of the BSC\n"); -} - -static void handle_options(int argc, char **argv) -{ - while (1) { - int option_index = 0, c; - static struct option long_options[] = { - {"help", 0, 0, 'h'}, - {"debug", 1, 0, 'd'}, - {"bsc-ip", 1, 0, 'i'}, - {0, 0, 0, 0}, - }; - - c = getopt_long(argc, argv, "hd:i:", - long_options, &option_index); - if (c == -1) - break; - - switch (c) { - case 'h': - print_usage(argv[0]); - exit(0); - case 'd': - log_parse_category_mask(stderr_target, optarg); - debug_set = 1; - break; - case 'i': - bsc_host = strdup(optarg); - break; - default: - break; - } - } -} - -void sighandler(int sigset) -{ - if (sigset == SIGHUP || sigset == SIGPIPE) - return; - - fprintf(stderr, "Signal %d recevied.\n", sigset); - - /* in case there is a lockup during exit */ - signal(SIGINT, SIG_DFL); - signal(SIGHUP, SIG_DFL); - signal(SIGTERM, SIG_DFL); - signal(SIGPIPE, SIG_DFL); - - quit = 1; -// dispatch_signal(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL); -} - -int main(int argc, char **argv) -{ - int ret; - struct hostent *hostent; - struct in_addr *ina; - uint32_t bsc_ip; - uint8_t maskv_tx[2], maskv_rx[2]; - - printf("((*))\n"); - printf(" |\n"); - printf(" / \\ OsmoBTS\n"); - - get_mac(); - bts_support_init(); - - srand(time(NULL)); - - log_init(&log_info); - stderr_target = log_target_create_stderr(); - log_add_target(stderr_target); - log_set_all_filter(stderr_target, 1); - - l23_ctx = talloc_named_const(NULL, 1, "layer2 context"); - - handle_options(argc, argv); - - if (!debug_set) - log_parse_category_mask(stderr_target, debugs); - log_set_log_level(stderr_target, LOGL_INFO); - - hostent = gethostbyname(bsc_host); - if (!hostent) { - fprintf(stderr, "Failed to resolve BSC hostname '%s'.\n", - bsc_host); - } - ina = (struct in_addr *) hostent->h_addr; - bsc_ip = ntohl(ina->s_addr); - printf("Using BSC at IP: '%d.%d.%d.%d'\n", bsc_ip >> 24, - (bsc_ip >> 16) & 0xff, (bsc_ip >> 8) & 0xff, bsc_ip & 0xff); - - printf("Using BTS ID: '%s'\n", bts_id); - bts = create_bts(1, bts_id); - if (!bts) - exit(-1); - maskv_tx[0] = 0x55; - maskv_rx[0] = 0x55; - ret = create_ms(bts->trx[0], 1, maskv_tx, maskv_rx); - if (ret < 0) - goto fail; - ret = abis_open(&bts->link, bsc_ip); - if (ret < 0) - goto fail; - - signal(SIGINT, sighandler); - signal(SIGHUP, sighandler); - signal(SIGTERM, sighandler); - signal(SIGPIPE, sighandler); - - while (!quit) { - work_bts(bts); - osmo_select_main(0); - } - -fail: - destroy_bts(bts); - - return 0; -} -- 1.8.1.5

10 years, 9 months

3
13
0 0

[PATCH] oml: Add a missing break switch for NM_OC_BS11

by Holger Hans Peter Freyther

It appears to me that for NM_OC_BS11 mo was either NULL or the one mo value from NM_OC_BS11_RACK. The break inside the nested switch case didn't break from the outer one. Fixes Coverity: CID 1040728 --- openbsc/src/libcommon/gsm_data_shared.c | 1 + 1 file changed, 1 insertion(+) diff --git a/openbsc/src/libcommon/gsm_data_shared.c b/openbsc/src/libcommon/gsm_data_shared.c index 9a50f6b..1b0814c 100644 --- a/openbsc/src/libcommon/gsm_data_shared.c +++ b/openbsc/src/libcommon/gsm_data_shared.c @@ -390,6 +390,7 @@ gsm_objclass2mo(struct gsm_bts *bts, uint8_t obj_class, default: return NULL; } + break; case NM_OC_BS11_RACK: mo = &bts->bs11.rack.mo; break; -- 1.8.3.2

10 years, 9 months

1
0
0 0

Fwd: DSP optimization

by Alexander Chemeris

Hi all, I'm moving this conversation from private to public. I think Sylvain and Andreas might be interested in participating. ---------- Forwarded message ---------- From: Thomas Tsou <tom(a)tsou.cc> Date: Tue, Jul 9, 2013 at 2:51 AM Subject: Re: DSP optimization To: Alexander Chemeris <alexander.chemeris(a)gmail.com> On Mon, Jul 8, 2013 at 6:52 AM, Alexander Chemeris <alexander.chemeris(a)gmail.com> wrote: > Wow, optimization of 5-16x for Viterbi is huge indeed. I wonder what > would be results for our Atoms. Without SSE, just C only butterfly, the improvement is around 4x. SSE 3 (Atom) forces a small change on the normalization (not separated out yet), but the results weren't very far off from SSE 4.1 when I tested on Core 2 Duo. I might try to manipulate the interface to read in the state tables instead of the generator polynomials. That would really help with testing and integration, but I'm not sure yet. There are many ways to go here. > What is problematic with the runtime detection? CPU autodetection on > Linux should be as easy as reading /proc/cpuinfo. But I see an issue > is with correctly setting up build system to generate all version on > the same run. I think we could leave CPU autodetection for the > "everything else" milestone, using compile time selection for now. I think compile time detection is more appropriate. For GSM / LTE we're almost always dealing with fixed sized vectors and not odd calculations (e.g. 1023 size FFT), so it's unlikely that the results will change on repeated runs. /proc/cpuinfo parsing scripts I've seen have been prone to breakage. If you have a really good one, let me know. I usually prefer to run configure checks against the actual instruction, but that can get messy with a lot of checks. Anyhow, I'm not worrying about this now. > What repository will you push at? We need to have at least master > branch and dual-channel branch working with the optimizations. And I > believe everyone would be happy to see optimizations in the > libosmocore for the benefit of other projects as well. I don't foresee > any issues with a slight change in the API of libosmocore if it is > justified - just send an RFC/patch to the OpenBSC mailing list and it > will be reviewed. Non-Viterbi changes are sigProc.cpp changes only, so they are not branch-specific - they will probably merge into the oldest available OpenBTS releases. The Viterbi changes merge into Andreas's branch, which is a very large change. For now, somebody needs to write it, which is why I'm considering making the interfaces match. Attached are the standalone unit test cases for SSE 4.2. As previously mentioned, Atom needs SSE3 only. I'll add the ifdefs for those shortly. I don't know if there's an appropriate repository for these right now - linking libosmocore from the transceiver for comparison purposes only seems silly. I just generated a temporary tarball for the time being. Thomas -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

10 years, 9 months

3
7
0 0

osmo-trx peculiarities in dual-channel mode

by Alexander Chemeris

Hi Thomas, What is the reason you disabled setting power attenuation an receive gain for the second trx? Since both channels in UmTRX are independent, it should be possible to control tx power and rx gain independently. In the "SETPOWER" command handler: if (mPrimary) mRadioInterface->setPowerAttenuation(dbPwr); In the "SETRXGAIN" it's even stranger, as it's set twice in case of primary trx: newGain = mRadioInterface->setRxGain(newGain); mEnergyThreshold = INIT_ENERGY_THRSHD; if (mPrimary) newGain = mRadioInterface->setRxGain(newGain); -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

10 years, 9 months

3
4
0 0

[PATCH] smpp: Move the coding/mode detection into a utils file

by Holger Hans Peter Freyther

From: Holger Hans Peter Freyther <holger(a)moiji-mobile.com> Make sure to not ever have issues with this code again, move the utility code to a new file and create a basic testcase. The method currently has 100% line and branch coverage. --- openbsc/.gitignore | 1 + openbsc/configure.ac | 1 + openbsc/src/libmsc/Makefile.am | 2 +- openbsc/src/libmsc/smpp_openbsc.c | 36 +------------------ openbsc/src/libmsc/smpp_smsc.h | 5 +++ openbsc/tests/Makefile.am | 4 +++ openbsc/tests/smpp/Makefile.am | 12 +++++++ openbsc/tests/smpp/smpp_test.c | 73 +++++++++++++++++++++++++++++++++++++++ openbsc/tests/smpp/smpp_test.err | 2 ++ openbsc/tests/smpp/smpp_test.ok | 1 + openbsc/tests/testsuite.at | 8 +++++ 11 files changed, 109 insertions(+), 36 deletions(-) create mode 100644 openbsc/tests/smpp/Makefile.am create mode 100644 openbsc/tests/smpp/smpp_test.c create mode 100644 openbsc/tests/smpp/smpp_test.err create mode 100644 openbsc/tests/smpp/smpp_test.ok diff --git a/openbsc/.gitignore b/openbsc/.gitignore index 53c8a4a..3743f69 100644 --- a/openbsc/.gitignore +++ b/openbsc/.gitignore @@ -61,6 +61,7 @@ tests/timer/timer_test tests/gprs/gprs_test tests/abis/abis_test tests/si/si_test +tests/smpp/smpp_test tests/atconfig tests/atlocal diff --git a/openbsc/configure.ac b/openbsc/configure.ac index 3dd2212..8997e2e 100644 --- a/openbsc/configure.ac +++ b/openbsc/configure.ac @@ -160,6 +160,7 @@ AC_OUTPUT( tests/gprs/Makefile tests/si/Makefile tests/abis/Makefile + tests/smpp/Makefile doc/Makefile doc/examples/Makefile Makefile) diff --git a/openbsc/src/libmsc/Makefile.am b/openbsc/src/libmsc/Makefile.am index 7faee43..c36ba92 100644 --- a/openbsc/src/libmsc/Makefile.am +++ b/openbsc/src/libmsc/Makefile.am @@ -19,5 +19,5 @@ libmsc_a_SOURCES = auth.c \ osmo_msc.c if BUILD_SMPP -libmsc_a_SOURCES += smpp_smsc.c smpp_openbsc.c smpp_vty.c +libmsc_a_SOURCES += smpp_smsc.c smpp_openbsc.c smpp_vty.c smpp_utils.c endif diff --git a/openbsc/src/libmsc/smpp_openbsc.c b/openbsc/src/libmsc/smpp_openbsc.c index 1744b0e..a3d2487 100644 --- a/openbsc/src/libmsc/smpp_openbsc.c +++ b/openbsc/src/libmsc/smpp_openbsc.c @@ -78,9 +78,6 @@ static struct tlv_t *find_tlv(struct tlv_t *head, uint16_t tag) return NULL; } -#define MODE_7BIT 7 -#define MODE_8BIT 8 - /*! \brief convert from submit_sm_t to gsm_sms */ static int submit_to_sms(struct gsm_sms **psms, struct gsm_network *net, const struct submit_sm_t *submit) @@ -468,39 +465,8 @@ static int deliver_to_esme(struct osmo_esme *esme, struct gsm_sms *sms, /* Figure out SMPP DCS from TP-DCS */ dcs = sms->data_coding_scheme; - if ((dcs & 0xF0) == 0xF0) { - if (dcs & 0x04) { - /* bit 2 == 1: 8bit data */ - deliver.data_coding = 0x02; - mode = MODE_8BIT; - } else { - /* bit 2 == 0: default alphabet */ - deliver.data_coding = 0x01; - mode = MODE_7BIT; - } - } else if ((dcs & 0xE0) == 0) { - switch (dcs & 0xC) { - case 0: - deliver.data_coding = 0x01; - mode = MODE_7BIT; - break; - case 4: - deliver.data_coding = 0x02; - mode = MODE_8BIT; - break; - case 8: - deliver.data_coding = 0x08; /* UCS-2 */ - mode = MODE_8BIT; - break; - default: - goto unknown_mo; - } - } else { -unknown_mo: - LOGP(DLSMS, LOGL_ERROR, "SMPP MO Unknown Data Coding 0x%02x\n", - dcs); + if (smpp_determine_scheme(dcs, &deliver.data_coding, &mode) == -1) return -1; - } /* Transparently pass on DCS via SMPP if requested */ if (esme->acl->dcs_transparent) diff --git a/openbsc/src/libmsc/smpp_smsc.h b/openbsc/src/libmsc/smpp_smsc.h index 86fbeb5..028e572 100644 --- a/openbsc/src/libmsc/smpp_smsc.h +++ b/openbsc/src/libmsc/smpp_smsc.h @@ -15,6 +15,9 @@ #define SMPP_SYS_ID_LEN 16 #define SMPP_PASSWD_LEN 16 +#define MODE_7BIT 7 +#define MODE_8BIT 8 + enum esme_read_state { READ_ST_IN_LEN = 0, READ_ST_IN_MSG = 1, @@ -124,4 +127,6 @@ int smpp_route_pfx_add(struct osmo_smpp_acl *acl, const struct osmo_smpp_addr *pfx); int smpp_route_pfx_del(struct osmo_smpp_acl *acl, const struct osmo_smpp_addr *pfx); + +int smpp_determine_scheme(uint8_t dcs, uint8_t *data_coding, int *mode); #endif diff --git a/openbsc/tests/Makefile.am b/openbsc/tests/Makefile.am index c0e48df..c9afeed 100644 --- a/openbsc/tests/Makefile.am +++ b/openbsc/tests/Makefile.am @@ -4,6 +4,10 @@ if BUILD_NAT SUBDIRS += bsc-nat endif +if BUILD_SMPP +SUBDIRS += smpp +endif + # The `:;' works around a Bash 3.2 bug when the output is not writeable. $(srcdir)/package.m4: $(top_srcdir)/configure.ac diff --git a/openbsc/tests/smpp/Makefile.am b/openbsc/tests/smpp/Makefile.am new file mode 100644 index 0000000..eb25965 --- /dev/null +++ b/openbsc/tests/smpp/Makefile.am @@ -0,0 +1,12 @@ +AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include -I$(top_srcdir)/src/libmsc +AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOSCCP_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS) +AM_LDFLAGS = $(COVERAGE_LDFLAGS) + +EXTRA_DIST = smpp_test.ok smpp_test.err + +noinst_PROGRAMS = smpp_test + +smpp_test_SOURCES = smpp_test.c \ + $(top_srcdir)/src/libmsc/smpp_utils.c +smpp_test_LDADD = $(LIBOSMOCORE_LIBS) \ + $(top_srcdir)/src/libcommon/libcommon.a diff --git a/openbsc/tests/smpp/smpp_test.c b/openbsc/tests/smpp/smpp_test.c new file mode 100644 index 0000000..62fa9d2 --- /dev/null +++ b/openbsc/tests/smpp/smpp_test.c @@ -0,0 +1,73 @@ +/* + * (C) 2013 by Holger Hans Peter Freyther + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <stdlib.h> +#include <stdio.h> + +#include <openbsc/debug.h> + +#include <osmocom/core/application.h> +#include <osmocom/core/backtrace.h> + +#include "smpp_smsc.h" + +struct coding_test { + uint8_t dcs; + uint8_t coding; + int mode; + int res; +}; + +static struct coding_test codecs[] = { + { .dcs = 0xf6 , .coding = 0x02, .mode = MODE_8BIT, .res = 0 }, + { .dcs = 0xf2 , .coding = 0x01, .mode = MODE_7BIT, .res = 0 }, + { .dcs = 0x02 , .coding = 0x01, .mode = MODE_7BIT, .res = 0 }, + { .dcs = 0x06 , .coding = 0x02, .mode = MODE_8BIT, .res = 0 }, + { .dcs = 0x0A , .coding = 0x08, .mode = MODE_8BIT, .res = 0 }, + { .dcs = 0x0E , .coding = 0xFF, .mode = 0xFF, .res = -1 }, + { .dcs = 0xE0 , .coding = 0xFF, .mode = 0xFF, .res = -1 }, +}; + +static void test_coding_scheme(void) +{ + int i; + printf("Testing coding scheme support\n"); + + for (i = 0; i < ARRAY_SIZE(codecs); ++i) { + uint8_t coding; + int mode, res; + + res = smpp_determine_scheme(codecs[i].dcs, &coding, &mode); + OSMO_ASSERT(res == codecs[i].res); + if (res != -1) { + OSMO_ASSERT(mode == codecs[i].mode); + OSMO_ASSERT(coding == codecs[i].coding); + } + } +} + +int main(int argc, char **argv) +{ + osmo_init_logging(&log_info); + log_set_use_color(osmo_stderr_target, 0); + log_set_print_filename(osmo_stderr_target, 0); + + test_coding_scheme(); + return EXIT_SUCCESS; +} diff --git a/openbsc/tests/smpp/smpp_test.err b/openbsc/tests/smpp/smpp_test.err new file mode 100644 index 0000000..ec966ba --- /dev/null +++ b/openbsc/tests/smpp/smpp_test.err @@ -0,0 +1,2 @@ +SMPP MO Unknown Data Coding 0x0e +SMPP MO Unknown Data Coding 0xe0 diff --git a/openbsc/tests/smpp/smpp_test.ok b/openbsc/tests/smpp/smpp_test.ok new file mode 100644 index 0000000..fd44804 --- /dev/null +++ b/openbsc/tests/smpp/smpp_test.ok @@ -0,0 +1 @@ +Testing coding scheme support diff --git a/openbsc/tests/testsuite.at b/openbsc/tests/testsuite.at index e649f03..ea3fa1c 100644 --- a/openbsc/tests/testsuite.at +++ b/openbsc/tests/testsuite.at @@ -40,6 +40,14 @@ cat $abs_srcdir/bsc-nat/bsc_nat_test.ok > expout AT_CHECK([$abs_top_builddir/tests/bsc-nat/bsc_nat_test], [], [expout], [ignore]) AT_CLEANUP +AT_SETUP([smpp]) +AT_KEYWORDS([smpp]) +AT_CHECK([test "$enable_smpp_test" != no || exit 77]) +cat $abs_srcdir/smpp/smpp_test.ok > expout +cat $abs_srcdir/smpp/smpp_test.err > experr +AT_CHECK([$abs_top_builddir/tests/smpp/smpp_test], [], [expout], [experr]) +AT_CLEANUP + AT_SETUP([si]) AT_KEYWORDS([si]) cat $abs_srcdir/si/si_test.ok > expout -- 1.8.3.2

10 years, 9 months

1
0
0 0

7bit changes to libosmocore

by Holger Hans Peter Freyther

Dear LaF0rge, Andreas, I am really disappointed about the used process for this change. As an absolute minimum run "make check" after bigger changes. The run takes about 20 seconds (and that is probably 15s in the timer test), I have to spend way more time fixing the fall-out from that and it creates the impression that you do not value my time! I think Andreas should have posted this kind of change to the mailing list and ask for review. The way it was done is really unacceptable and the build is still broken. And to make it worse I think the change is wrong in several ways: 1.) The issue of the last '7bit' being 'empty' only applies to USSD/CB: "If the total number of characters to be sent equals (8n-1) where n=1,2,3 etc. then there are 7 spare bits at the end of the message. To avoid the situation where the receiving entity confuses 7 binary zero pad bits as the @ character, the carriage return or <CR> character (defined in subclause 7.1.1) shall be used for padding in this situation, just as for Cell Broadcast." In SMS one has both the octet length and the character length inside the messages. In USSD this information is not present. 2.) The semantic of the change is bad. + octet_len = response_len*7/8; + if (response_len*7%8 != 0) + octet_len++; + /* Warning, response_len indicates the amount of septets + * (characters), we need amount of octets occupied */ Every caller of gsm_7bit_encode now needs to consider adding this change, it is better to move this into gsm_utils.c. E.g. take a look at my branch called zecke/features/alpha-numeric for a gsm_7bit_encode_oct. Which comes with a testcase... and moves this responsibility into libosmocore and is based on the real octets written (instead of trying to figure it our afterwards). We all make money by working on Osmocom sub-projects and I really can't stand such amateurish work. Can we force reset master to before the merge and try again? cheers holger

10 years, 9 months

7
20
0 0

[PATCH] Set the clock calibration to the value read from the eeprom by default.

by Nicolas J. Bouliane

From: "Nicolas J. Bouliane" <nicolas.bouliane(a)nutaq.com> Signed-off-by: Nicolas J. Bouliane <nicolas.bouliane(a)nutaq.com> --- src/osmo-bts-sysmo/l1_if.c | 1 + src/osmo-bts-sysmo/l1_if.h | 1 + src/osmo-bts-sysmo/main.c | 24 ++++++++++++++++++++++++ src/osmo-bts-sysmo/sysmobts_vty.c | 21 ++++++++++++++++++++- 4 files changed, 46 insertions(+), 1 deletion(-) diff --git a/src/osmo-bts-sysmo/l1_if.c b/src/osmo-bts-sysmo/l1_if.c index 16f1523..e16bb49 100644 --- a/src/osmo-bts-sysmo/l1_if.c +++ b/src/osmo-bts-sysmo/l1_if.c @@ -1267,6 +1267,7 @@ struct femtol1_hdl *l1if_open(void *priv) fl1h->priv = priv; fl1h->clk_cal = 0; + fl1h->clk_use_eeprom = 1; fl1h->ul_power_target = -75; /* dBm default */ fl1h->min_qual_rach = MIN_QUAL_RACH; fl1h->min_qual_norm = MIN_QUAL_NORM; diff --git a/src/osmo-bts-sysmo/l1_if.h b/src/osmo-bts-sysmo/l1_if.h index 7947ea2..cf8af7b 100644 --- a/src/osmo-bts-sysmo/l1_if.h +++ b/src/osmo-bts-sysmo/l1_if.h @@ -42,6 +42,7 @@ struct femtol1_hdl { struct gsm_time gsm_time; uint32_t hLayer1; /* handle to the L1 instance in the DSP */ uint32_t dsp_trace_f; + uint8_t clk_use_eeprom; int clk_cal; int ul_power_target; uint8_t clk_src; diff --git a/src/osmo-bts-sysmo/main.c b/src/osmo-bts-sysmo/main.c index 595a6eb..d535ac8 100644 --- a/src/osmo-bts-sysmo/main.c +++ b/src/osmo-bts-sysmo/main.c @@ -48,6 +48,7 @@ #define SYSMOBTS_RF_LOCK_PATH "/var/lock/bts_rf_lock" +#include "eeprom.h" #include "l1_if.h" /* FIXME: read from real hardware */ @@ -80,6 +81,27 @@ int bts_model_init(struct gsm_bts *bts) return 0; } +/* Set the clock calibration to the value + * read from the eeprom. + */ +void clk_cal_use_eeprom(struct gsm_bts *bts) +{ + int rc; + struct femtol1_hdl *hdl; + eeprom_RfClockCal_t rf_clk; + + hdl = bts->c0->role_bts.l1h; + + if (!hdl || !hdl->clk_use_eeprom) + return; + + rc = eeprom_ReadRfClockCal(&rf_clk); + if (rc != EEPROM_SUCCESS) + return; + else + hdl->clk_cal = rf_clk.iClkCor; +} + struct ipabis_link *link_init(struct gsm_bts *bts, const char *ip) { struct ipabis_link *link = talloc_zero(bts, struct ipabis_link); @@ -286,6 +308,8 @@ int main(int argc, char **argv) exit(1); } + clk_cal_use_eeprom(bts); + if (stat(SYSMOBTS_RF_LOCK_PATH, &st) == 0) { LOGP(DL1C, LOGL_NOTICE, "Not starting BTS due to RF_LOCK file present\n"); exit(23); diff --git a/src/osmo-bts-sysmo/sysmobts_vty.c b/src/osmo-bts-sysmo/sysmobts_vty.c index 5bc948e..21b7f89 100644 --- a/src/osmo-bts-sysmo/sysmobts_vty.c +++ b/src/osmo-bts-sysmo/sysmobts_vty.c @@ -111,6 +111,18 @@ DEFUN(cfg_trx_no_gsmtap_sapi, cfg_trx_no_gsmtap_sapi_cmd, return CMD_SUCCESS; } +DEFUN(cfg_trx_clkcal_eeprom, cfg_trx_clkcal_eeprom_cmd, + "clock-calibration eeprom", + "Use the eeprom clock calibration value\n") +{ + struct gsm_bts_trx *trx = vty->index; + struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx); + + fl1h->clk_use_eeprom = 1; + + return CMD_SUCCESS; +} + DEFUN(cfg_trx_clkcal_def, cfg_trx_clkcal_def_cmd, "clock-calibration default", "Set the clock calibration value\n" "Default Clock DAC value\n") @@ -118,6 +130,7 @@ DEFUN(cfg_trx_clkcal_def, cfg_trx_clkcal_def_cmd, struct gsm_bts_trx *trx = vty->index; struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx); + fl1h->clk_use_eeprom = 0; fl1h->clk_cal = 0xffff; return CMD_SUCCESS; @@ -132,6 +145,7 @@ DEFUN(cfg_trx_clkcal, cfg_trx_clkcal_cmd, struct gsm_bts_trx *trx = vty->index; struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx); + fl1h->clk_use_eeprom = 0; fl1h->clk_cal = clkcal & 0xfff; return CMD_SUCCESS; @@ -145,6 +159,7 @@ DEFUN(cfg_trx_clkcal, cfg_trx_clkcal_cmd, struct gsm_bts_trx *trx = vty->index; struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx); + fl1h->clk_use_eeprom = 0; fl1h->clk_cal = clkcal; return CMD_SUCCESS; @@ -476,7 +491,10 @@ void bts_model_config_write_trx(struct vty *vty, struct gsm_bts_trx *trx) struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx); int i; - vty_out(vty, " clock-calibration %d%s", fl1h->clk_cal, + if (fl1h->clk_use_eeprom) + vty_out(vty, " clock-calibration eeprom%s", VTY_NEWLINE); + else + vty_out(vty, " clock-calibration %d%s", fl1h->clk_cal, VTY_NEWLINE); if (fl1h->calib_path) vty_out(vty, " trx-calibration-path %s%s", @@ -549,6 +567,7 @@ int bts_model_vty_init(struct gsm_bts *bts) install_element(BTS_NODE, &cfg_bts_no_auto_band_cmd); install_element(TRX_NODE, &cfg_trx_clkcal_cmd); + install_element(TRX_NODE, &cfg_trx_clkcal_eeprom_cmd); install_element(TRX_NODE, &cfg_trx_clkcal_def_cmd); install_element(TRX_NODE, &cfg_trx_clksrc_cmd); install_element(TRX_NODE, &cfg_trx_cal_path_cmd); -- 1.7.10.4

10 years, 9 months

2
1
0 0

patch for gsm0808.c

by Dmitri Soloviev

Hi in order to decode Cipher Mode Command from Alcatel S-12, please accept a patch to gsm0808.c Without it OpenBSC rejects ciphering, and procedures are broken from MSC side @@ -305,6 +305,7 @@ [GSM0808_IE_CELL_IDENTIFIER] = { TLV_TYPE_TLV }, [GSM0808_IE_CHOSEN_CHANNEL] = { TLV_TYPE_TV }, [GSM0808_IE_LAYER_3_INFORMATION] = { TLV_TYPE_TLV }, + [GSM0808_IE_LAYER_3_HEADER_INFORMATION] = { TLV_TYPE_TLV }, [GSM0808_IE_SPEECH_VERSION] = { TLV_TYPE_TV }, [GSM0808_IE_CHOSEN_ENCR_ALG] = { TLV_TYPE_TV }, }, Right now there is a pilot with MNO, and Telscale SS7 Card runs code for A-interface gateway, converting BSSAP/SS7 to SCCPoverIP + rtp. It seems that such a gateway also has to adapt OpenBSC to each particular MSC. As an example, DTAP portion of Cipher Mode Complete must be removed for proper operation with S12. Code will published as soon as pilot succeeds. Best Regards, Dmitri

10 years, 9 months

3
3
0 0

Second call on encrypted connection

by Andreas Eversberg

hi, while trying to do a second call (hold the first, dial another number), i found out that there is no acknowledge for a CM service request, when encyption is enabled. the attached patch will fix it. regards, andreas

10 years, 9 months

2
5
0 0

Complete setup with just simulation

by Priyanka Behl

Hi everyone, I have to setup a complete call with voice support and also a complete working GPRS network with just simulation and no physical base station, is it achievable? It would be great if someone could enlighten me on this. Thanks and regards, Priyanka

10 years, 9 months

2
1
0 0

sysmoBTS + NITB

by Roelf Diedericks

I have FINALLY gotten to play with my sysmoBTS acquired many months ago, and updated to the latest packages using okpg, and am running a NITB. GSM850 test setup in open mode A5/0, and I can SMS and call between devices. However, there is no audio, and BTS console logs reports many repeats of the following during an established call. <0006> tch.c:601 (bts=0,trx=0,ts=7,ss=0) Rx Payload Type EFR is unsupported <0006> tch.c:601 (bts=0,trx=0,ts=7,ss=0) Rx Payload Type EFR is unsupported <0006> tch.c:601 (bts=0,trx=0,ts=7,ss=0) Rx Payload Type EFR is unsupported

10 years, 9 months

2
2
0 0

[PATCH] Fix: Handle CM service request on already secured channel correctly

by Andreas Eversberg

A CM service request must be acknowledged also, when encryption is already enabled. Without encryption enabled, the security status is GSM_SECURITY_NOTAVAIL, which causes a CM service acknowledge. On initial CM service request, the security status is GSM_SECURITY_SUCCEED, if encryption is enabled. This will not lead to an acknowledge, because the cyphering command implies an acknowlege. An additional CM service request requires an acknowledge, so I added a new security status: GSM_SECURITY_ALREADY --- openbsc/include/openbsc/gsm_data.h | 1 + openbsc/src/libmsc/gsm_04_08.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h index d7db887..05e0490 100644 --- a/openbsc/include/openbsc/gsm_data.h +++ b/openbsc/include/openbsc/gsm_data.h @@ -21,6 +21,7 @@ enum gsm_security_event { GSM_SECURITY_NOAVAIL, GSM_SECURITY_AUTH_FAILED, GSM_SECURITY_SUCCEEDED, + GSM_SECURITY_ALREADY, }; struct msgb; diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c index 58107e3..2ce0e8c 100644 --- a/openbsc/src/libmsc/gsm_04_08.c +++ b/openbsc/src/libmsc/gsm_04_08.c @@ -194,7 +194,7 @@ int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq, status = GSM_SECURITY_NOAVAIL; } else if (conn->lchan->encr.alg_id > RSL_ENC_ALG_A5(0)) { DEBUGP(DMM, "Requesting to secure an already secure channel"); - status = GSM_SECURITY_SUCCEEDED; + status = GSM_SECURITY_ALREADY; } else if (!ms_cm2_a5n_support(subscr->equipment.classmark2, net->a5_encryption)) { DEBUGP(DMM, "Subscriber equipment doesn't support requested encryption"); @@ -856,6 +856,7 @@ static int _gsm48_rx_mm_serv_req_sec_cb( break; case GSM_SECURITY_NOAVAIL: + case GSM_SECURITY_ALREADY: rc = gsm48_tx_mm_serv_ack(conn); break; -- 1.8.1.5 --------------030304030609050702010202--

10 years, 9 months

1
0
0 0

[PATCH] Fix: Handle CM service request on already secured channel correctly

by Andreas Eversberg

A CM service request must be acknowledged also, when encryption is already enabled. Without encryption enabled, the security status is GSM_SECURITY_NOTAVAIL, which causes a CM service acknowledge. On initial CM service request, the security status is GSM_SECURITY_SUCCEED, if encryption is enabled. This will not lead to an acknowledge, because the cyphering command implies an acknowlege. An additional CM service request requires an acknowledge, so I added a new security status: GSM_SECURITY_ALREADY --- openbsc/include/openbsc/gsm_data.h | 1 + openbsc/src/libmsc/gsm_04_08.c | 8 +++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h index d7db887..05e0490 100644 --- a/openbsc/include/openbsc/gsm_data.h +++ b/openbsc/include/openbsc/gsm_data.h @@ -21,6 +21,7 @@ enum gsm_security_event { GSM_SECURITY_NOAVAIL, GSM_SECURITY_AUTH_FAILED, GSM_SECURITY_SUCCEEDED, + GSM_SECURITY_ALREADY, }; struct msgb; diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c index 58107e3..3725eb9 100644 --- a/openbsc/src/libmsc/gsm_04_08.c +++ b/openbsc/src/libmsc/gsm_04_08.c @@ -194,7 +194,7 @@ int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq, status = GSM_SECURITY_NOAVAIL; } else if (conn->lchan->encr.alg_id > RSL_ENC_ALG_A5(0)) { DEBUGP(DMM, "Requesting to secure an already secure channel"); - status = GSM_SECURITY_SUCCEEDED; + status = GSM_SECURITY_ALREADY; } else if (!ms_cm2_a5n_support(subscr->equipment.classmark2, net->a5_encryption)) { DEBUGP(DMM, "Subscriber equipment doesn't support requested encryption"); @@ -302,6 +302,11 @@ static int _gsm0408_authorize_sec_cb(unsigned int hooknum, unsigned int event, release_loc_updating_req(conn); break; + case GSM_SECURITY_ALREADY: + LOGP(DMM, LOGL_ERROR, "We don't expect LOCATION " + "UPDATING after CM SERVICE REQUEST\n"); + /* fall through */ + case GSM_SECURITY_NOAVAIL: case GSM_SECURITY_SUCCEEDED: /* We're all good */ @@ -856,6 +861,7 @@ static int _gsm48_rx_mm_serv_req_sec_cb( break; case GSM_SECURITY_NOAVAIL: + case GSM_SECURITY_ALREADY: rc = gsm48_tx_mm_serv_ack(conn); break; -- 1.8.1.5 --------------040306030909000104060200--

10 years, 9 months

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[PATCH] LAPD: Free resume/re-establishment msgb if it carries no content

by Andreas Eversberg

lapdm.c takes the re-establishment message and forwards it to lapd_core.c, so we can assume that msgb is set at primitive. In case there is data in the re-establishment msg, it is moved into send_buffer. In case of no data (0 length), it must be freed. --- src/gsm/lapd_core.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/src/gsm/lapd_core.c b/src/gsm/lapd_core.c index 68b5e78..08143ed 100644 --- a/src/gsm/lapd_core.c +++ b/src/gsm/lapd_core.c @@ -1962,11 +1962,13 @@ static int lapd_res_req(struct osmo_dlsap_prim *dp, struct lapd_msg_ctx *lctx) if (dl->send_buffer) msgb_free(dl->send_buffer); dl->send_out = 0; - if (msg && msg->len) + if (msg->len) { /* Write data into the send buffer, to be sent first */ dl->send_buffer = msg; - else + } else { + msgb_free(msg); dl->send_buffer = NULL; + } /* Discard partly received L3 message */ if (dl->rcv_buffer) { -- 1.7.3.4 --------------030109030604040502010001--

10 years, 9 months

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Re: Nokia Insite handover

by Sipos Csaba

Hi Peter, > It means that some real programming is needed. It's not a small > change. It might work as-is with one phone camping to only one of the > two BTSes at a time, but you will likely have corruptions if you have > a bunch of phones on both BTSes at once. I was able to start two InSite units at the same time, probably because these units has only one TRX per BTS. I was even able to establish an inter-BTS voice call. Cell reselection and SMS was working fine also. But when I tried to enable handover, I got this strange message that I have to enable RTP proxy. If I do so, my voice calls are failing completely (not a surprise, these units are connecting through E1). I could really use a straight answer from any developer, that OpenBSC has handover support for non-IP (E1 based) units or not, because I am not trying to get this done if it is completely missing. > When using nitb with a multi-TRX MetroSite there is a similar pattern > to what you describe - after the BTS is reset using the Nokia BTS > Manager, nitb only ever manages to correctly initialize the first > TRX. An error occurs and nitb exits. Restarting nitb sometimes allows > it to initialize the second TRX, sometimes no. My guess is that > failure or success depends on what phones are sending to the BTS > meanwhile, but it could also be only a matter of timing. Today I was able to setup our MetroSite (2 GSM1800 TRXs) unit and encountered the very same problem: only the first TRX was initialized, though both TRXs are set up in the openbsc config file. For the start and stop process you absolutely right. Out of ten tries, usually 2-3 are successful if I try to start both InSite units, but the chances are better if I previously start openbsc with a single BTS config file, then hit Ctrl+C and start the mutli BTS config file. It is also interesting, that both TRXSIG lapd connections are ON according to the BTS manager with MetroSite, but the second TRX is just not working. > The nokia_site code can definitily be improved when it comes to > startup/shutdown, but I don't know how well known the Nokia OML is. > It would also be nice to listen to the BTS Manager serial port > communication. If I understand correctly, many (all?) things that > BTS Manager can do over serial are also possible over E1. I can do these traces if you let me know what commands are you interested in. For example I can tell you for sure, that the site reset request command sent by OpenBSC (bts_nokia_site.c to be specific) is doing exactly the same, when I hit "Enable Abis" in Nokia BTS Manager. BTW do you have Nokia units too? I am still open to give access to our MetroSite (or the InSite) units if a developer is interested in it. I also have a fine selection of Nokia BTS managers that includes almost all Nokia BTS types (InSite, MetroSite, UltraSite, Flexi HUB, MetroHUB, Flexi EDGE, Metro Hopper etc.) I am happy to share this with any developer, just PM me with an FTP server account and remember: the whole package is 2.2GB. Br, Csaba

10 years, 9 months

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Nokia InSite multiple BTSs with OpenBSC

by Sipos Csaba

Dear Members, As I previously mentioned, I have two Nokia InSite BTS units that I want to set up for my university. One GSM900 and one GSM1800 unit, and I want to share some findings that can be useful for other users too. First, the informations about the DAHDI configuration at the end of the building page: http://openbsc.osmocom.org/trac/wiki/Building_OpenBSC It sais the following for system.conf: dchan=1 bchan=2-30 I wanted to point out that it is not necessary to define a dchan, because with BTSes this is not a traditional E1 line configuration where you share timeslots and you have to signal it via the traditional E1 signaling channel (dchan), because for every BTS there are dedicated timeslots for OMUSIG, TRXSIG and TCHs etc, that cannot be used by anybody else. And because we are not using that dchan, it is a waste of capacity to allocate it. My DAHDI system.conf looks like this: span=1,0,0,ccs,hdb3,crc4 bchan=1-31 and it works perfectly without a configured dchan (well its far from perfect but at least the problem is not with the E1 configuration). Because every BTS works like this, it would be wise the update that information. For T1 lines and other framing configurations (cas, ami etc.) it is the same. The second thing is that Nokia InSite units (probably others too) can be daisy chained. It is possible to share the first BTS units E1 connection for the daisy chained units with the integrated HDSL cross-connection interface. With this technique it is possible to share one E1 connection between 5 BTSes. But there is a slight problem. I figured out if the BTS is not connecting to the E1 directly, but via this HDSL interface, it needs more time before it can be configured via OML,RSL. So in bts_nokia_site.c the #DEFINE RESET_INTERVAL have to be raise from the current 15 seconds to at least 25 seconds, otherwise the unit is not going to came up. With this modification I was able to use the unity via this HDSL cross-connection interface. The third thing is multiple BTS operation. As I mentioned I want to use two InSite units with OpenBSC. But at the beginning of bts_nokie_site.c there is a big warning: I most certainly going to have problems with multi BTS operation. Despite the warning I tried with two units, and found an interesting thing: if I try to start the two units, only one of the two units are going to came up. But if I start the daisy chained unit first, then stop openbsc and immediately start openbsc again but now with the two unit config file, both BTSes are came up just fine, the phones can camp on both units. I don't know the real reason behind this behavior, but I have log and PCAP traces about the working and non-working scenarios. If someone interested in it I can share the results. Although a possible reason is that in bts_nokia_insite.c the shutdown routine is completely missing. It is not a good solution, but at least we should reset the BTS(es) and all the signalling channels in the shutdown state (like with BS11), until we figure out some proper way of shutting Nokia BTSes down. BR, Csaba

10 years, 9 months

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[OpenBSC PATCHv2] libmgcp: add enum mgcp_type

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patch replaces the field 'is_transcoded' in the mgcp_endpoint structure by the enum mgcp_type, that can be further extended with new types. --- v2: remove default: case and move LOGP to before the return 0; as suggested by Peter. openbsc/include/openbsc/mgcp_internal.h | 7 ++++++- openbsc/src/libmgcp/mgcp_network.c | 34 +++++++++++++++++++++++-------- openbsc/src/libmgcp/mgcp_protocol.c | 8 ++++---- 3 files changed, 36 insertions(+), 13 deletions(-) diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h index 455bb53..d5bd3dd 100644 --- a/openbsc/include/openbsc/mgcp_internal.h +++ b/openbsc/include/openbsc/mgcp_internal.h @@ -96,6 +96,11 @@ struct mgcp_rtp_tap { struct sockaddr_in forward; }; +enum mgcp_type { + MGCP_RTP_DEFAULT = 0, + MGCP_RTP_TRANSCODED, +}; + struct mgcp_endpoint { int allocated; uint32_t ci; @@ -119,7 +124,7 @@ struct mgcp_endpoint { */ struct mgcp_rtp_end trans_bts; struct mgcp_rtp_end trans_net; - int is_transcoded; + enum mgcp_type type; /* sequence bits */ struct mgcp_rtp_state net_state; diff --git a/openbsc/src/libmgcp/mgcp_network.c b/openbsc/src/libmgcp/mgcp_network.c index a2cfc23..e9b58b2 100644 --- a/openbsc/src/libmgcp/mgcp_network.c +++ b/openbsc/src/libmgcp/mgcp_network.c @@ -371,10 +371,19 @@ static int rtp_data_net(struct osmo_fd *fd, unsigned int what) endp->net_end.octets += rc; forward_data(fd->fd, &endp->taps[MGCP_TAP_NET_IN], buf, rc); - if (endp->is_transcoded) - return send_transcoder(&endp->trans_net, endp->cfg, proto == PROTO_RTP, &buf[0], rc); - else - return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr, &buf[0], rc); + + switch (endp->type) { + case MGCP_RTP_DEFAULT: + return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr, + buf, rc); + case MGCP_RTP_TRANSCODED: + return send_transcoder(&endp->trans_net, endp->cfg, + proto == PROTO_RTP, buf, rc); + } + + LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n", + endp->type, ENDPOINT_NUMBER(endp)); + return 0; } static void discover_bts(struct mgcp_endpoint *endp, int proto, struct sockaddr_in *addr) @@ -450,10 +459,19 @@ static int rtp_data_bts(struct osmo_fd *fd, unsigned int what) endp->bts_end.octets += rc; forward_data(fd->fd, &endp->taps[MGCP_TAP_BTS_IN], buf, rc); - if (endp->is_transcoded) - return send_transcoder(&endp->trans_bts, endp->cfg, proto == PROTO_RTP, &buf[0], rc); - else - return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr, &buf[0], rc); + + switch (endp->type) { + case MGCP_RTP_DEFAULT: + return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr, + buf, rc); + case MGCP_RTP_TRANSCODED: + return send_transcoder(&endp->trans_bts, endp->cfg, + proto == PROTO_RTP, buf, rc); + } + + LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n", + endp->type, ENDPOINT_NUMBER(endp)); + return 0; } static int rtp_data_transcoder(struct mgcp_rtp_end *end, struct mgcp_endpoint *_endp, diff --git a/openbsc/src/libmgcp/mgcp_protocol.c b/openbsc/src/libmgcp/mgcp_protocol.c index dc5e0f9..1e1841a 100644 --- a/openbsc/src/libmgcp/mgcp_protocol.c +++ b/openbsc/src/libmgcp/mgcp_protocol.c @@ -500,7 +500,7 @@ static int allocate_ports(struct mgcp_endpoint *endp) } /* remember that we have set up transcoding */ - endp->is_transcoded = 1; + endp->type = MGCP_RTP_TRANSCODED; } return 0; @@ -1014,7 +1014,7 @@ void mgcp_free_endp(struct mgcp_endpoint *endp) mgcp_rtp_end_reset(&endp->net_end); mgcp_rtp_end_reset(&endp->trans_net); mgcp_rtp_end_reset(&endp->trans_bts); - endp->is_transcoded = 0; + endp->type = MGCP_RTP_DEFAULT; memset(&endp->net_state, 0, sizeof(endp->net_state)); memset(&endp->bts_state, 0, sizeof(endp->bts_state)); @@ -1118,7 +1118,7 @@ static void create_transcoder(struct mgcp_endpoint *endp) int in_endp = ENDPOINT_NUMBER(endp); int out_endp = endp_back_channel(in_endp); - if (!endp->is_transcoded) + if (endp->type != MGCP_RTP_TRANSCODED) return; send_msg(endp, in_endp, endp->trans_bts.local_port, "CRCX", "sendrecv"); @@ -1140,7 +1140,7 @@ static void delete_transcoder(struct mgcp_endpoint *endp) int in_endp = ENDPOINT_NUMBER(endp); int out_endp = endp_back_channel(in_endp); - if (!endp->is_transcoded) + if (endp->type != MGCP_RTP_TRANSCODED) return; send_dlcx(endp, in_endp); -- 1.7.10.4

10 years, 9 months

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[ADMIN] Wanted: List moderator

by Harald Welte

Dear Osmocom community, I'm currently looking for one or multiple volunteers who are willing to tend to the mailman 'moderator queue' of the various osmocom mailing lists (baseband-devel, openbsc, simtrace, tetra, osmocom-pcu, ...) Our lists are 'member posting only' to protect them from spam. This means that spammers will be caught in the list moderation queue together with the occasional legitimate message from a non-subscriber. You need to manually look over that queue in the mailman web interface, select those legitimate posts as 'approve' and 'defer' all others. The task requires very few minutes, but it requires them every day or second day. It is a perfect opportunity how non-developers can contribute to the project :) Please let me know if anyone is willing to take care of this. Thanks! Regards, Harald -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

10 years, 9 months

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Nokia MetroSite

by Sipos Csaba

To the MetroSIte topic: I think we have a MetroSite unit with PSU, E1 card, TRE and 2 TRX. Nobody tried it out because we dont have a BSC, but I will try to hook it up to the E1 card and see if it works, I hope I can find a -48V DC supply :-) If it works I will happily set up access for developers if someone interested in it. In the mean time, I will going to do some multi unit tests with the two insite units and figure it out why sometimes both units came up, and the other time why only the first unit came up only. I think it is important to find why is this happening, because InSIte and MetroSite units can both be daisy chained, and due to the extensive network upgrades (in Europe) a lot of these units will be available on the markets (Vodafone and Telenor already dropped these units after the RAN upgrades in Hungary). But it is also true, that maybe a good development direction would be to support femto cells, that are easily and cheaply accessible to anyone, uses IP technology and In general it is easy to work with. BR, Csaba

10 years, 9 months

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Help with Asterisk setup to stop Openbsc registering handsets

by Adam B

Dear Mailinglist I am having a spot of bother with setting up asterisk with openbsc. I have gone with a basic setup from scratch LCR/ASTERISK/SIP minus mISDN as I dont require it and it would not compile it to my current kernel version in ubuntu 12.04 without downgrading it. Anyway my problem is that I don't know how to prevent OpenBSC from using its own HLR and instead forward all phones that want to register to my nanoBTS to do so via Asterisk. This is causing me grief because asterisk is its verbose logs is providing me this error when I try to make a call: > -- Executing [8690 <at> phones:1] Dial("SIP/IMSI466974600011287-00000000", > "SIP/IMSI466974104638690") in new stack > [Dec 18 16:00:49] WARNING[2934]: app_dial.c:2218 dial_exec_full: > Unable to create channel of type 'SIP' (cause 20 - Unknown) > == Everyone is busy/congested at this time (1:0/0/1) > -- Auto fallthrough, channel 'SIP/IMSI466974600011287-00000000' > status is 'CHANUNAVAIL' when I do show sip peers they are all offline because OpenBSC is registering my handsets and not passing on registration to Asterisk. I believe once OpenBSC is passing on registration all will be healthy with asterisk. I don't have my configurations with me at the moment snipit above is from a google search, hopefully some helpful soul will know my blunders without my configs Thank you all . Regards Adam

10 years, 9 months

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Nokia MetroSite EDGE

by Labs

Hello, I just found this Nokia MetroSite on eBay DE for who is interested. It seems like there were 2 pieces and one was sold for 300 Euro. http://www.ebay.de/itm/NOKIA-Metrosite-EDGE-CS10-BTS-HVMD11-020586A-102-Bas… Cheers, R.

10 years, 9 months

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Coverity issues in lapd_core/gsm mncc

by Holger Hans Peter Freyther

Dear Andreas, the coverity prevent utility has found three inconsistencies in the lapd_core.c and the gsm_04_08.c and I think you are suited the best to comment on how to resolve them. src/gsm/lapd_core.c static int lapd_res_req(struct osmo_dlsap_prim *dp, struct lapd_msg_ctx *lctx) ... 1943 LOGP(DLLAPD, LOGL_INFO, "perform re-establishment (SABM) length=%d\n", 1944 msg->len); ... CID 1040665 (#1 of 1): Dereference before null check (REVERSE_INULL) check_after_deref: Null-checking "msg" suggests that it may be null, but it has already been dereferenced on all paths leading to the check. 1956 if (msg && msg->len) so we already dereferenced msg to print the length. So at this point, is it legetimate to a have NULL msgb or shall the null check be removed? src/libmsc/gsm_04_08.c static int gsm48_cc_rx_connect(struct gsm_trans *trans, struct msgb *msg) ... 2090 if (trans->subscr) { 2091 connect.fields |= MNCC_F_CONNECTED; 2092 strncpy(connect.connected.number, trans->subscr->extension, 2093 sizeof(connect.connected.number)-1); 2094 strncpy(connect.imsi, trans->subscr->imsi, 2095 sizeof(connect.imsi)-1); 2096 } ... CID 1040740 (#1 of 1): Dereference after null check (FORWARD_NULL) 6. var_deref_op: Dereferencing null pointer "trans->subscr". 2117 osmo_counter_inc(trans->subscr->net->stats.call.mt_connect); 2118 2119 return mncc_recvmsg(trans->subscr->net, trans, MNCC_SETUP_CNF, &connect); trans->subscr is conditionally dereferenced and then unconditionally, what is correct? static int gsm48_cc_rx_setup(struct gsm_trans *trans, struct msgb *msg) ... 1761 if (trans->subscr) { 1762 setup.fields |= MNCC_F_CALLING; 1763 strncpy(setup.calling.number, trans->subscr->extension, 1764 sizeof(setup.calling.number)-1); 1765 strncpy(setup.imsi, trans->subscr->imsi, 1766 sizeof(setup.imsi)-1); 1767 } ... CID 1040739 (#1 of 1): Dereference after null check (FORWARD_NULL) 14. var_deref_model: Passing null pointer "trans->subscr" to function "subscr_name(struct gsm_subscriber *)", which dereferences it. [show details] 1813 LOGP(DCC, LOGL_INFO, "Subscriber %s (%s) sends SETUP to %s\n", 1814 subscr_name(trans->subscr), trans->subscr->extension, 1815 setup.called.number); 1816 1817 osmo_counter_inc(trans->subscr->net->stats.call.mo_setup); Same thing as above. Can the null check be removed? Would you have the time to do that?

10 years, 9 months

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[PATCH openBSC] libmgcp: add enum mgcp_type

by pablo＠gnumonks.org

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> This patch replaces the field 'is_transcoded' in the mgcp_endpoint structure by the enum mgcp_type, that can be further extended with new types. --- openbsc/include/openbsc/mgcp_internal.h | 7 ++++++- openbsc/src/libmgcp/mgcp_network.c | 34 +++++++++++++++++++++++-------- openbsc/src/libmgcp/mgcp_protocol.c | 8 ++++---- 3 files changed, 36 insertions(+), 13 deletions(-) diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h index 455bb53..d5bd3dd 100644 --- a/openbsc/include/openbsc/mgcp_internal.h +++ b/openbsc/include/openbsc/mgcp_internal.h @@ -96,6 +96,11 @@ struct mgcp_rtp_tap { struct sockaddr_in forward; }; +enum mgcp_type { + MGCP_RTP_DEFAULT = 0, + MGCP_RTP_TRANSCODED, +}; + struct mgcp_endpoint { int allocated; uint32_t ci; @@ -119,7 +124,7 @@ struct mgcp_endpoint { */ struct mgcp_rtp_end trans_bts; struct mgcp_rtp_end trans_net; - int is_transcoded; + enum mgcp_type type; /* sequence bits */ struct mgcp_rtp_state net_state; diff --git a/openbsc/src/libmgcp/mgcp_network.c b/openbsc/src/libmgcp/mgcp_network.c index a2cfc23..7eaacf5 100644 --- a/openbsc/src/libmgcp/mgcp_network.c +++ b/openbsc/src/libmgcp/mgcp_network.c @@ -371,10 +371,19 @@ static int rtp_data_net(struct osmo_fd *fd, unsigned int what) endp->net_end.octets += rc; forward_data(fd->fd, &endp->taps[MGCP_TAP_NET_IN], buf, rc); - if (endp->is_transcoded) - return send_transcoder(&endp->trans_net, endp->cfg, proto == PROTO_RTP, &buf[0], rc); - else - return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr, &buf[0], rc); + + switch (endp->type) { + case MGCP_RTP_DEFAULT: + return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr, + buf, rc); + case MGCP_RTP_TRANSCODED: + return send_transcoder(&endp->trans_net, endp->cfg, + proto == PROTO_RTP, buf, rc); + default: + LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n", + endp->type, ENDPOINT_NUMBER(endp)); + } + return 0; } static void discover_bts(struct mgcp_endpoint *endp, int proto, struct sockaddr_in *addr) @@ -450,10 +459,19 @@ static int rtp_data_bts(struct osmo_fd *fd, unsigned int what) endp->bts_end.octets += rc; forward_data(fd->fd, &endp->taps[MGCP_TAP_BTS_IN], buf, rc); - if (endp->is_transcoded) - return send_transcoder(&endp->trans_bts, endp->cfg, proto == PROTO_RTP, &buf[0], rc); - else - return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr, &buf[0], rc); + + switch (endp->type) { + case MGCP_RTP_DEFAULT: + return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr, + buf, rc); + case MGCP_RTP_TRANSCODED: + return send_transcoder(&endp->trans_bts, endp->cfg, + proto == PROTO_RTP, buf, rc); + default: + LOGP(DMGCP, LOGL_ERROR, "Bad MGCP type %u on endpoint %u\n", + endp->type, ENDPOINT_NUMBER(endp)); + } + return 0; } static int rtp_data_transcoder(struct mgcp_rtp_end *end, struct mgcp_endpoint *_endp, diff --git a/openbsc/src/libmgcp/mgcp_protocol.c b/openbsc/src/libmgcp/mgcp_protocol.c index dc5e0f9..1e1841a 100644 --- a/openbsc/src/libmgcp/mgcp_protocol.c +++ b/openbsc/src/libmgcp/mgcp_protocol.c @@ -500,7 +500,7 @@ static int allocate_ports(struct mgcp_endpoint *endp) } /* remember that we have set up transcoding */ - endp->is_transcoded = 1; + endp->type = MGCP_RTP_TRANSCODED; } return 0; @@ -1014,7 +1014,7 @@ void mgcp_free_endp(struct mgcp_endpoint *endp) mgcp_rtp_end_reset(&endp->net_end); mgcp_rtp_end_reset(&endp->trans_net); mgcp_rtp_end_reset(&endp->trans_bts); - endp->is_transcoded = 0; + endp->type = MGCP_RTP_DEFAULT; memset(&endp->net_state, 0, sizeof(endp->net_state)); memset(&endp->bts_state, 0, sizeof(endp->bts_state)); @@ -1118,7 +1118,7 @@ static void create_transcoder(struct mgcp_endpoint *endp) int in_endp = ENDPOINT_NUMBER(endp); int out_endp = endp_back_channel(in_endp); - if (!endp->is_transcoded) + if (endp->type != MGCP_RTP_TRANSCODED) return; send_msg(endp, in_endp, endp->trans_bts.local_port, "CRCX", "sendrecv"); @@ -1140,7 +1140,7 @@ static void delete_transcoder(struct mgcp_endpoint *endp) int in_endp = ENDPOINT_NUMBER(endp); int out_endp = endp_back_channel(in_endp); - if (!endp->is_transcoded) + if (endp->type != MGCP_RTP_TRANSCODED) return; send_dlcx(endp, in_endp); -- 1.7.10.4

10 years, 9 months

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[PATCH] Fix IE lengths in the sgsn code

by Alexander Chemeris

Hi all, Attached patch fixes lengths of MS Network Capability and MS Radio Access Capability elements. Original code was inconsistent about lengths and could lead to out of bounds write. Lengths were also inconsistent with the TS 24.008. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

10 years, 9 months

2
7
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have some good,anyone interested ?

by anak galer

Hello folks I have some goods of the CDMA device, anyone is interested to research it? 1.Ceragon ODU 15HPS-1R-RFU-6H 2.Alcatel 9400AWY Cheers!

10 years, 9 months

1
0
0 0

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OpenBSC July 2013