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2017-08-27libmsc: gsm340_gen_oa_sub() may return negative valuePablo Neira Ayuso1-2/+9
gsm340_gen_oa() returns a negative value if the output buffer that the caller passes is too small, so we have to check the return value of this function. Fixes: CID 174178 Fixes: CID 174179 Change-Id: I47215d7d89771730a7f84efa8aeeb187a0911fdb
2017-08-27libmsc: support GSM 03.40 status report for nitbPablo Neira Ayuso1-0/+5
This patch adds support for GSM 03.40 in nitb mode. MS GSM 03.40 SMSC | | | SMS-SUBMIT | |--------------------------->| | GSM 04.11 RP-ACK | |<---------------------------| | SMS-DELIVER | |<---------------------------| | GSM 04.11 RP-ACK | |--------------------------->| | SMS-STATUS-REPORT | |<---------------------------| | GSM 04.11 RP-ACK | |--------------------------->| | | Change-Id: I5cc7bb4ebadde0940f44d10c3df34707b0615160
2017-08-27libmsc: handle delivery ack via SMPP SUBMIT SM / send GSM 03.40 status reportPablo Neira Ayuso2-2/+54
This patch adds gsm340_sms_send_status_report_tpdu() to build a status-report. Moreover, set sms->report field if we see a SMPP SUBMIT_SM with Delivery Acknowledgment esm_class, so this identifies that this is a delivery report. MS GSM 03.40 SMSC SMPP 3.4 ESME | | | | | SUBMIT-SM | | | esm_class = Delivery Ack | | |<-------------------------------| | | SUBMIT-SM-RESP | | |------------------------------->| | | | | SMS-STATUS-REPORT | | |<----------------------------| | | GSM 04.11 RP-ACK | | |---------------------------->| | | | | There is a FIXME message in this patch, that I just copied from gsm340_gen_sms_deliver_tpdu() since TP-MMS is not supported by OpenBSC. Change-Id: Ib70e534840308ed315f7add440351e649de3f907
2017-08-27libmsc: update database to accomodate SMS status-report fieldsPablo Neira Ayuso1-6/+162
SMPP DELIVER_SM messages with esm_class = Delivery Receipt need to send this message reference (that the mobile phone allocates) to the ESME. Thus, the ESME propagates it via SUBMIT_SM with esm_class = Delivery Acknoledgment so that the SMSC sends the GSM 03.40 status-report to the origin including this. Given this field is useful for status-reports, we need to store it in the HLR database. Moreover, we need a new field that specifies if the entry represents a SMS status-report, to do the right handling from the gsm411_send_sms() - such new handling comes in a follow up patch entitled "libmsc: handle delivery ack via SMPP SUBMIT SM / send GSM 03.40 status report". This patch includes the migration routines to the new database schema revision 5, it's quite a bit of dbi boilerplate code - copied-pasted and adapted. Change-Id: I7276d356d805a83ebeec72b02c8563b7135ea0b6
2017-08-27libmsc: add support for SMPP delivery receiptsPablo Neira Ayuso3-1/+75
If the mobile phone requests a status report via SMS, send a DELIVER_SM with esm_class = Delivery Receipt to ESME to indicate that the SMS has been already delivered to its destination. MS GSM 03.40 SMSC SMPP 3.4 ESME | | | | SMS-DELIVER | | |<----------------------------| | | GSM 04.11 RP-ACK | | |---------------------------->| | | | DELIVER-SM | | | esm_class = Delivery Receipt | | |------------------------------->| | | DELIVER-SM-RESP | | |<-------------------------------| | | | This patch implements "Appendix B. Delivery Receipt Format" as specified in the SMPP 3.4 specs. This string is conveyed in the SMS message as data, and it is only meaningful to the ESME, for logging purposes. The "submit date" and "done date" are not yet set, and other fields are just sent with dummy values, so they are left to be finished as future work. The new SMPP TLV tag TLVID_user_message_reference is added to the SMPP messages inconditionally now since this information is required by delivery-reports to associate the status-report with the original SMS. Change-Id: Ic1a9023074bfa938099377980b6aff9b262fab2a
2017-08-27libmsc: missing bit shift in status report flag when stored in sms objectPablo Neira Ayuso1-1/+1
So we just store 0 or 1 depending on what the mobile phone requests. Change-Id: Idb7d5594219c0e458ccb561383a59604bc1a4201
2017-08-27libmsc: report status report request flag from SMPP SUBMIT_SMPablo Neira Ayuso1-0/+1
Restore the sms status report request flag from SUBMIT_SM. Change-Id: Iac05252253f8933a3875b4904599b7a225191a4b
2017-08-27libmsc: set registered_delivery field in SMPP 3.4 DELIVER_SM messagesPablo Neira Ayuso1-1/+8
Propagate the status report request field to the SMPP message through the registered_delivery field, so the ESME knows that the mobile phone is asking for explicit delivery acknowledgment is required. See SMPP 3.4 specs section 5.2.17. Change-Id: I59af60fa89cd10ae973c5e122789e3e03e3728ee
2017-08-27libmsc: move gsm340_rx_sms_submit() to sms_route_mt_sms()Pablo Neira Ayuso1-19/+22
Move the sms message-type-identifier (mti) handling away from the routing logic. This patch allows us to reuse the sms_route_mt_sms() function in a follow up patch for sms reports send through SMPP DELIVER_SM with esm_class = Delivery Receipt whose Change-Id is Ic1a9023074bfa938099377980b6aff9b262fab2a. Change-Id: I3f3d30e0762b91e2099243b0be1a4b67cbb5e9c0
2017-08-27libmsc: remove 'deferred' parameter in sms_route_mt_sms()Pablo Neira Ayuso3-30/+24
No need to cache the sms object, just cache what we need into the smpp_cmd structure. This simplifies what that I introduced in 93ffbd0029d1 ("libmsc: send RP-ACK to MS after ESME sends SMPP DELIVER-SM-RESP"). Change-Id: Iba5f864f9bb963baff95969e306b1b7cff00c1e3
2017-08-27libmsc: remove duplicate lines in deliver_to_esme()Pablo Neira Ayuso1-2/+0
This code is accidentally doing the same thing twice, remove it. Change-Id: I68087a850399e22951d2407e4d8a09c671a775c9
2017-08-27libmsc: remove dead code in sms_route_mt_sms()Pablo Neira Ayuso1-3/+0
The following branch: if (!rc && !gsms->receiver) rc = GSM411_RP_CAUSE_MO_NUM_UNASSIGNED; at the end of sms_route_mt_sms() always evaluates false. Just a bit before, in such function, we have this: if (!gsms->receiver) { ... #ifdef BUILD_SMPP ... #else ... #endif return rc; } So, if there is no receiver, we just stop running code and return the RP cause via the rc variable. Same applies to the smpp_first check under the BUILD_SMPP ifdef (that I have removed in this snippet to keep this commit message small). Change-Id: Ic3502b5b169bc7a73a67fd6ff53d8b6c0dc045c8
2017-08-27libmsc: do not leak pending SMPP command object on error pathPablo Neira Ayuso1-5/+6
Make sure the SMPP command object is released on errors. Change-Id: I474584425d23fb379a9d71b33e29ac0e24f01e61
2017-08-27gsm_04_11: get rid of unused parameter in sms_route_mt_sms()Pablo Neira Ayuso1-5/+6
This parameter is unused, remove it. Change-Id: I797abce3f91447e8f397c7cf726db7425479fe0e
2017-08-27transaction: reject calls from unidentified subscribersBenoit Bolsee1-0/+7
A valid subscriber is indespensible when allocating a new transaction. Return NULL if no subscriber is supplied. This will cause unidentified subscribers to be rejected. Note: Under normal conditions, the problem does not occour, but it is still possible that a misbehaving MS might trigger the problem by sending a SETUP command before authenticating the subscriber. (unencrypted networks) Change-Id: Ia8739b6e329ab02c0064270d02ad1d6ee245520d
2017-08-27Add VTY commands for experimentation with TS 04.14 commandsHarald Welte1-0/+94
TS 04.14 (TS 44.014) specifies a series of commands specific to conformance testing. Let's add some VTY commands to play (at least initially) with closing and opening voice loops in the MS. Change-Id: I38b1ee9dbf26f5689c38cb83b1b3c5e9eaad7678
2017-08-27Support for TS 04.14 conformance test commandsHarald Welte3-0/+138
Change-Id: Ib27edbfc8ccdedf00589ec715ced7bed435fa94c
2017-08-27libmsc: Fix VTY output for handover counters.Alexander Chemeris1-5/+5
Handover countrs belong to BSC, but we mistakenly take values from MSC counters. Change-Id: I9512330f2e91d2f526751c5228e6e8e0fe17d579
2017-08-2704.08: find a portable way to obtain the timezone offsetBenoit Bolsee1-3/+10
Portable GMT offset calculation to display correct time on GSM. Change-Id: I673f17af2550c9708c4771e4ea4eafbbfafbb824
2017-08-27smpp: fix return causeBenoit Bolsee4-12/+17
Return cause 38 when default SMPP route is unavailable. This is better than cause 1. Change-Id: If3241d50a78fa611981e55fef6ae4c72b0a2a167
2017-08-27smpp_smsc.c: Log on sending deliver_sm messagePau Espin Pedrol1-0/+3
Change-Id: Ie16294df6d5bc0065f8d2b49320ead61f535f271
2017-08-2304.08: log protocol discriminators and message types by nameNeels Hofmeyr1-6/+8
On incoming 04.08 messages, we log only the protocol discriminator in decimal. Enhance: log pdisc and message type in hex, and also log the protocol and message type as human readable string. Also adjust the msc_vlr tests' log statements for wrapped rx/tx functions of dtap from/to the MS. Adjust the expected output of msc_vlr_tests. Change-Id: Ida205d217e304337d816b14fd15e2ee435e7397d Depends: libosmocore change-id I0fca8e95ed5c2148b1a7440eff3fc9c7583898df
2017-08-08Implement IuCS (large refactoring and addition)Neels Hofmeyr16-294/+1033
osmo-nitb becomes osmo-msc add DIUCS debug log constant add iucs.[hc] add msc vty, remove nitb vty add libiudummy, to avoid linking Iu deps in tests Use new msc_tx_dtap() instead of gsm0808_submit_dtap() libmgcp: add mgcpgw client API bridge calls via mgcpgw Enable MSC specific CTRL commands, bsc_base_ctrl_cmds_install() still needs to be split up. Change-Id: I5b5b6a9678b458affa86800afb1ec726e66eed88
2017-08-08mscsplit: various preparations to separate MSC from BSCNeels Hofmeyr12-856/+234
Disable large parts of the code that depend on BSC presence. The code sections disabled by #if BEFORE_MSCSPLIT shall be modified or dropped in the course of adding the A-interface. Don't set msg->lchan nor msg->dst. Don't use lchan in libmsc. Decouple lac from bts. Prepare entry/exit point for MSC -> BSC and MSC -> RNC communication: Add msc_ifaces.[hc], a_iface.c, with a general msc_tx_dtap() to redirect to different interfaces depending on the actual subscriber connection. While iu_tx() is going to be functional fairly soon, the a_tx() is going to be just a dummy for some time (see comment). Add Iu specific fields in gsm_subscriber_connection: the UE connection pointer and an indicator for the Integrity Protection status on Iu (to be fully implemented in later commits). Add lac member to gsm_subscriber_connection, to allow decoupling from bts->location_area_code. The conn->lac will actually be set in iu.c in an upcoming commit ("add iucs.[hc]"). move to libcommon-cs: gsm48_extract_mi(), gsm48_paging_extract_mi(). libmsc: duplicate gsm0808 / gsm48 functions (towards BSC). In osmo-nitb, libmsc would directly call the functions on the BSC level, not always via the bsc_api. When separating libmsc from libbsc, some functions are missing from the linkage. Hence duplicate these functions to libmsc, add an msc_ prefix for clarity, also add a _tx to gsm0808_cipher_mode(): * add msc_gsm0808_tx_cipher_mode() (dummy/stub) * add msc_gsm48_tx_mm_serv_ack() * add msc_gsm48_tx_mm_serv_rej() Call these from libmsc instead of * gsm0808_cipher_mode() * gsm48_tx_mm_serv_ack() * gsm48_tx_mm_serv_rej() Also add a comment related to msc_gsm0808_tx_cipher_mode() in two places. Remove internal RTP streaming code; OsmoNITB supported that, but for OsmoMSC, this will be done with an external MGCP gateway. Remove LCHAN_MODIFY from internal MNCC state machine. Temporarily disable all paging to be able to link libmsc without libbsc. Skip the paging part of channel_test because the paging is now disabled. Employ fake paging shims in order for msc_vlr_tests to still work. msc_compl_l3(): publish in .h, tweak return value. Use new libmsc enum values for return val, to avoid dependency on libbsc headers. Make callable from other scopes: publish in osmo_msc.h and remove 'static' in osmo_msc.c add gsm_encr to subscr_conn move subscr_request to gsm_subscriber.h subscr_request_channel() -> subscr_request_conn() move to libmsc: osmo_stats_vty_add_cmds() gsm_04_08: remove apply_codec_restrictions() gsm0408_test: use NULL for root ctx move to libbsc: gsm_bts_neighbor() move to libbsc: lchan_next_meas_rep() move vty config for t3212 to network level (periodic lu) remove unneccessary linking from some tests remove handle_abisip_signal() abis_rsl.c: don't use libvlr from libbsc gsm_subscriber_connection: put the LAC here, so that it is available without accessing conn->bts. In bsc_api.c, place this lac in conn for the sake of transition: Iu and A will use this new field to pass the LAC around, but in a completely separate OsmoBSC this is not actually needed. It can be removed again from osmo-bsc.git when the time has come. Siemens MRPCI: completely drop sending the MRPCI messages for now, they shall be added in osmo-bsc once the A-Interface code has settled. See OS#2389. Related: OS#1845 OS#2257 OS#2389 Change-Id: Id3705236350d5f69e447046b0a764bbabc3d493c
2017-07-23Use libvlr in libmsc (large refactoring)Harald Welte19-2998/+1523
Original libvlr code is by Harald Welte <laforge@gnumonks.org>, polished and tweaked by Neels Hofmeyr <nhofmeyr@sysmocom.de>. This is a long series of trial-and-error development collapsed in one patch. This may be split in smaller commits if reviewers prefer that. If we can keep it as one, we have saved ourselves the additional separation work. SMS: The SQL based lookup of SMS for attached subscribers no longer works since the SQL database no longer has the subscriber data. Replace with a round-robin on the SMS recipient MSISDNs paired with a VLR subscriber RAM lookup whether the subscriber is currently attached. If there are many SMS for not-attached subscribers in the SMS database, this will become inefficient: a DB hit returns a pending SMS, the RAM lookup will reveal that the subscriber is not attached, after which the DB is hit for the next SMS. It would become more efficient e.g. by having an MSISDN based hash list for the VLR subscribers and by marking non-attached SMS recipients in the SMS database so that they can be excluded with the SQL query already. There is a sanity limit to do at most 100 db hits per attempt to find a pending SMS. So if there are more than 100 stored SMS waiting for their recipients to actually attach to the MSC, it may take more than one SMS queue trigger to deliver SMS for subscribers that are actually attached. This is not very beautiful, but is merely intended to carry us over to a time when we have a proper separate SMSC entity. Introduce gsm_subscriber_connection ref-counting in libmsc. Remove/Disable VTY and CTRL commands to create subscribers, which is now a task of the OsmoHLR. Adjust the python tests accordingly. Remove VTY cmd subscriber-keep-in-ram. Use OSMO_GSUP_PORT = 4222 instead of 2222. See I4222e21686c823985be8ff1f16b1182be8ad6175. So far use the LAC from conn->bts, will be replaced by conn->lac in Id3705236350d5f69e447046b0a764bbabc3d493c. Related: OS#1592 OS#1974 Change-Id: I639544a6cdda77a3aafc4e3446a55393f60e4050
2017-07-21Add libvlr implementationHarald Welte2-1/+269
Original libvlr code is by Harald Welte <laforge@gnumonks.org>, polished and tweaked by Neels Hofmeyr <nhofmeyr@sysmocom.de>. This is a long series of trial-and-error development collapsed in one patch. This may be split in smaller commits if reviewers prefer that. If we can keep it as one, we have saved ourselves the additional separation work. Related: OS#1592 Change-Id: Ie303c98f8c18e40c87c1b68474b35de332033622
2017-07-13logging: auth request: use hexdump without spaces for RAND, AUTNNeels Hofmeyr1-2/+2
Change-Id: Ie16bb2c01e770914f411bfb34b523c56ea9fab81
2017-07-12move openbsc/* to repos rootNeels Hofmeyr26-0/+14136
This is the first step in creating this repository from the legacy openbsc.git. Like all other Osmocom repositories, keep the autoconf and automake files in the repository root. openbsc.git has been the sole exception, which ends now. Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7