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2016-11-12comment on mscsplit, indent commentNeels Hofmeyr2-0/+8
2016-11-12move to libbsc: lchan_next_meas_rep() -- TODO really?Neels Hofmeyr1-1/+0
Change-Id: I4ea799c5fa61f81c404e6ef1b9ac86a8faa1fb49
2016-11-12move to libbsc: gsm_bts_neighbor() -- TODO really?Neels Hofmeyr1-4/+0
Change-Id: I63d4835dc7aabdf176e0ca634a6a4ca527612693
2016-11-12complete IuCS paging implementationNeels Hofmeyr1-0/+1
Add paging timeout to struct gsm_subscriber. Previously, paging timeout was implemented only on BSC level, where each request has its own timeout value. The MSC will still send individual requests to BSC or RNC level, where they timeout individually. However, the MSC must also have an own timeout to be sure to discard stale pagings that the BSC or RNC never replied for. Add handle_paging_resp(), copying the few libmsc relevant parts of gsm48_handle_paging_resp().
2016-11-12paging: change subscr_paging_cb() into subscr_rx_paging_response()Neels Hofmeyr1-0/+2
Remove one layer of callback indirection in paging. When a paging response arrives, we always want to first secure the connection, thus a fixed subscr_rx_paging_response() function is more appropriate and avoids having to store a cbfn. The actual actions to be taken upon successful paging are of course still in callback functions stored with each subscriber. Remove paging_request_stop() call from subscr_paging_dispatch(), which stops paging on all BTSs, which is not the responsibility of libmsc. Change-Id: Ic2c785c9cc48b2c2c6557cbe1060d25afa89e38d
2016-11-12move subscr auth check to gsm_subscriber.cNeels Hofmeyr1-0/+3
add subscr_authorized(), subscr_authorized_imsi() Change-Id: If2ef06b1229351127c61477ca14653d6ae4cb6bb
2016-11-12subscr_request_channel() -> subscr_request_conn()Neels Hofmeyr1-2/+2
Change-Id: Ife8e10b240693a8d369139881774f1892044aa65
2016-11-12move subscr_request to gsm_subscriber.hNeels Hofmeyr1-0/+14
Change-Id: Idbbd39b0e068da17aafa97e315143509c69c50ea
2016-11-12add gsm_encr to subscr_connNeels Hofmeyr1-0/+1
Change-Id: Id5797cd1f1bfa2cca2d3fbabc1981aa75546421b
2016-11-12libmsc: duplicate gsm0808 / gsm48 functions (towards BSC)Neels Hofmeyr1-0/+8
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 relatd to msc_gsm0808_tx_cipher_mode() in two places. Change-Id: I5b276853d3af71f5e3f0a031fd17b4fff0580020
2016-11-12msc_compl_l3(): publish in .h, tweak return valueNeels Hofmeyr1-0/+8
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 Change-Id: If24007445899e9c75553a0dbf843ada3566b3380
2016-11-12add cscn vty, remove nitb vtyNeels Hofmeyr1-0/+3
Change-Id: I8f8980d6cfbf26f1b0e0197939833e55dbe521fb
2016-11-12add iucs.[hc]Neels Hofmeyr2-0/+8
Change-Id: I88e981f4c31393a98ae8d61176c65c9251a6f28b
2016-11-12add DIUCS debug log constantNeels Hofmeyr1-0/+1
Change-Id: Id347a3024fa495a1ab680db7320648d933a4018b
2016-11-12gsm_04_08, gsm_subscriber: decouple lac from btsNeels Hofmeyr1-1/+1
The idea is to not have a direct pointer to a bts struct (into BSC land), but a LAC to resolve the BSC or RNC depending on the appropriate A or IuCS interface. subscr_update(): remove bts arg, add lac arg. Pass conn->lac to gsm48_generate_lai() instead of bts->location_area_code. Change-Id: I9f2b298a785bf4b2a1b3fcdd91b8256106b2d9de
2016-11-12subscr_update_expire_lu(): remove bts argNeels Hofmeyr1-1/+1
Change-Id: I26cafd9389aac65e53dc4280a1687c6b8bce3106
2016-11-12move t3212 to network level (periodic lu)Neels Hofmeyr1-0/+3
Set the T3212 default value in struct gsm_network and take that value when creating a BTS. Adjust VTY accordingly. Change-Id: Ifb730f9d0106fe195adc30459a39290a07313b50
2016-11-12Prepare entry/exit point for MSC -> BSC and MSC -> RNC communication.Neels Hofmeyr3-0/+63
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 via_iface marker to gsm_subscriber_connection with enum values IFACE_A and IFACE_IU so far. Add Iu specific fields in a sub-struct: 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]"). Change-Id: Idf8020a30562426e8f939706bf5c2188d5a09798
2016-11-12gsm_subscriber_connection: mark BSC specific itemsNeels Hofmeyr1-6/+6
The struct shall be split in two later. Change-Id: Ib9666225fb9bfec2cf1e364343560571869fe6a7
2016-11-12split subscr_con_allocate()/_free() in bsc_ and msc_Neels Hofmeyr1-2/+5
Rename current subscr_con_allocate() and subscr_con_free to bsc_*, and add two separate msc_subscr_con_allocate() and _free(). The msc_subscr_con_free() ignores all lchan members. In libbsc use bsc_*, in libmsc use msc_*. Change-Id: I3cf7c7cafdf4672ec7b26058bba8a77159855257 Future: there will be distinct subscr conns for libbsc and libmsc.
2016-11-12Move timezone settings up to network levelNeels Hofmeyr2-8/+14
Time zone used to be configurable per-BTS. In the upcoming MSC-split, no BTS structures will be available on the MSC level. To simplify, drop the ability to manage several time zones in a core network and place the time zone config on the network VTY level, i.e. in gsm_network. If we are going to re-add fine grained time zone settings, it should probably be tied to the LAC. Adjust time zone VTY config code (to be moved to libxsc in subsequent commit). Adjust time zone Ctrl Interface code. Change-Id: I69848887d92990f3d6f969be80f6ef91f6bdbbe8
2016-11-12move to libxsc: network VTY that isn't BSC-specificNeels Hofmeyr1-1/+2
Keep only BSC specific bits of the 'network' VTY node in bsc_vty.c, move more general VTY commands to xsc_vty.c. Add arg to xsc_vty_init() to pass a config_write_net() function. Pass a libbsc specific config_write_net() function. Future: upcoming omso-cscn will re-use the VTY bits moved to libxsc and pass a different config_write_net() function. Change-Id: I871b7b32a0c56fdce983e409cf244ec487d24e71
2016-11-12move to libxsc: global vty gsm_network pointerNeels Hofmeyr1-0/+5
Move gsmnet_from_vty() and the bsc_gsmnet global to xsc_vty.c. Rename bsc_gsmnet to vty_global_gsm_network and make it static to xsc_vty.c, to clearly mark the global variable for VTY use only. Introduce xsc_vty_init() to set vty_global_gsm_network. Change-Id: I26c5c47de08f899b896813d09612d5cb2f8e42d6
2016-11-12split bsc_bootstrap_network() in alloc and configNeels Hofmeyr1-1/+2
For patch clarity, keep some code dup to be removed in a subsequent patch. In the same sense don't change the fact that mncc_sock_init()'s return value is ignored. The global gsm_network instance 'bsc_gsmnet' is basically only used by the VTY, and a future patch will "hide" that global in a vty .c file. In a nutshell, I want to - first allocate a gsm_network, - then initialize the VTY passing the gsm_network pointer, - and then read the config file using the initialized VTY. So far, bsc_bootstrap_network() allocates the gsm_network and reads the config file right away, which only works by sharing the extern bsc_gsmnet pointer, which I would like to uncouple. Change-Id: I480a09a31a79766ad07b627dd5238b7e37f3be7a
2016-11-12sms_next_rp_msg_ref(): use direct pointer to next_rp_ref counterNeels Hofmeyr1-1/+1
libbsc and libmsc will have separate subscriber connection structs. Hence don't rely on gsm_subscriber_connection, but work on a direct pointer to the counter for the next RP reference. The only very thin function in gsm_04_11_helper.c thus becomes obsolete: drop the entire file. Change-Id: I2a2e9ba6a981a385d1f8f07acbe03536ffed0072
2016-11-12factor out & introduce struct gsm_encr, in xsc.hNeels Hofmeyr2-6/+11
Factor out encryption info from struct gsm_lchan as struct gsm_encr, placed in xsc.h. Change-Id: I94015fb9dd511c37c1e3058a0963c780b3f700ac Future: this will be used by libmsc's subscriber connection, for osmo-cscn.
2016-11-12move to libxsc: factor out gen of USSD notify and release completeNeels Hofmeyr1-2/+10
Both libmsc and libbsc will need distinct gsm0480_send_ussdNotify() and gsm0480_send_releaseComplete() functions, since there will be distinct subscriber connection structs. The current functions live in libmsc, so add the same in libbsc in new file gsm_04_80_utils.c. To avoid too much code dup, move the message generation part of gsm0480_send_ussdNotify() and gsm0480_send_releaseComplete() to new functions gsm0480_gen_ussdNotify() and gsm0480_gen_releaseComplete(), placed in libxsc. Change-Id: I33a84e3c28576ced91d2ea24103123431f551173
2016-11-12move to libxsc: net init 3: actual moveNeels Hofmeyr1-0/+7
Reincarnate gsm_network_init() as the parts not specific to libbsc. Move from bsc_network_init() those bits that are not BSC specific (and useful for upcoming osmo-cscn). Add libxsc to all linkages that use gsm_network_init(). Note: the only requirement to allow linking gsm_network_init() without libbsc is to keep the call to gsm_net_update_ctype() out of libxsc. The other items are kept out of libxsc because it makes sense semantically. But the separation is not strong in that the BSC specific data members are of course still omnipresent in struct gsm_network. If bsc_network_init() is not called, these are not initialized properly -- for now no users of uninitialized members exist. So this is just a first step towards a sensible split of the BSC and MSC gsm_network structs. The long term aim should be to have entirely separate structs with some common general items. Change-Id: If06316b97002390dc9a434686750cb96193ea63b
2016-11-12move to libxsc: net init 2: move bsc_network_init decl to osmo_bsc.hNeels Hofmeyr2-5/+5
bsc_network_init() is more fit to live in a BSC specific header. Change-Id: I9edfb1e748bb1cb484fadd48b0406f5b3098e89b
2016-11-12move to libxsc: net init 1: rename to bsc_network_initNeels Hofmeyr1-1/+1
The gsm_network_init() function initializes a whole lot of BSC specific stuff. Aiming to move some of it to libxsc, first rename it to bsc_network_init(). This will retain the BSC specific stuff when the move is done. Adjust all callers. Future: osmo-cscn will call the more generic part and not the BSC specific part. Change-Id: I4816ae19374390fc5c64972f7cad2e9ec3d8bcc3
2016-11-12define mncc_recv_cb_t to avoid code dupNeels Hofmeyr3-4/+11
Put mncc_recv_cb_t in xsc.h to avoid header include complications: if placing right above struct gsm_network, one must include gsm_data.h to use mncc_recv_cb_t as function parameter in a header, which will include gsm_data_shared.h, which will include xsc.h (future knowledge). Since I will need to use mncc_recv_cb_t in xsc.h, including gsm_data.h from there would introduce an #include loop. Avoid that and define mncc_recv_cb_t in xsc.h to begin with. Change-Id: I2e64cffa563750ce9f3172ffba6f9cf5b9280e9c
2016-11-12Add empty libxscNeels Hofmeyr2-0/+2
This will gradually soak up code shared by libbsc and libmsc. Change-Id: If34e2bd38a099d0799238337468d56e0305ab8ae
2016-11-09om2000: Add support for querying RBS capabilitiesroot1-0/+1
Change-Id: Id1fbaf41286f3651ce8f210eb8da05fb51179c96
2016-11-08WIP: OM2000: Full state machine implementation using osmo_fsmHarald Welte2-7/+43
Our existing OM2000 code for initializing all Managed Objects of a BTS at startup was never complete. Rather than trying to fix the old-style code, introudce a hierarchy of osmo_fsm's reflecting the full protocol hand-shake and sequence of bringing up the individual MO's. If this works out well, it mihgt make sense to convert the TS 12.21 OML code for other BTS models, too. Change-Id: I3e11b28ba22b8c227e0401e6207fdda5381dda8c
2016-11-01OML: Improve OML attribute handlingPhilipp2-0/+33
the OML attribute tables are hardcoded. To set variable parameters, the hardcoded data structure (tlv) is patched on byte level during runtime. This patch replaces this mechanism. - Replace hardcoded OML attribute tables with dynamically generated TLV structures. - Add unit tests to check if the OML attribute tables are generated correctly - Put OML attribute table generator code in a separate file: bts_ipaccess_nanobts_omlattr.c Change-Id: Ibeb34a84912d6cf695f553a34c69320fca7d08fa
2016-10-28DTX DL: Add FACCH cacheMax1-0/+3
When DL DTX is active and silent period is in progress dtx.cache is populated by SID UPDATE message which about to be scheduled next. If at that moment FACCH message arrives (which have higher priority) we have to send ONSET message to L1 but we can't invalidate cache with SID UPDATE as it will be used for SID FIRST message to resume silent period after FACCH transmission is over (provided there were no incoming voice in between). Hence the necessity for separate buffer to store content of FACCH message while we're sending ONSET to L1 while keeping SID UPDATE cached. Change-Id: I316e81af893b24766bf259baaed7a0be75a11694 Related: OS#1801
2016-10-27bsc: count the usage of codec by setting the lchan activeAlexander Couzens1-0/+10
We count the codec when the channel was successful setted up Using sign_link->trx->bts instead of msg->trx to get the bts. Add OSMO_ASSERT for bts within count_codecs() Change-Id: Ib49c7c337980a7d6f189d7a0551ca2e4c3822f45
2016-10-18Replace magic number with defineMax1-0/+4
Value 4 used as magic number by both OpenBSC and OsmoBTS so it make sense to add it to shared header. See ebb483b69a5319e522ba5f713e9cb6f68a814a6a in osmo-bts for details. Change-Id: I9c6ad68f4c6aa72d39ec7e5a6968b36ec20e79f4
2016-10-12DTX DL: use FSM for AMRMax1-12/+9
- consolidate all DTX-specific things in a separate struct - rename struct fields to better reflect meaning - add pointer to DL FSM for AMR - remove unused flag - expand buffer to hold cached payload alongside with CMR/CMI Change-Id: Idac8609faf9b5ced818fde899ccfc6ed0c42e8fd
2016-10-10Revert "bsc: count the usage of codec by setting the lchan active"Neels Hofmeyr1-10/+0
This reverts commit 38e9ea3f7f385c6660c5958970af5c71adc1682b. Introduced a reproducable segfault, because msg->trx is not actually set/used in the openbsc code paths. Program received signal SIGSEGV, Segmentation fault. count_codecs (lchan=0x1, bts=<optimized out>) at ../../../src/libbsc/abis_rsl.c:104 104 rate_ctr_inc(&bts->network->bsc_ctrs->ctr[BSC_CTR_CODEC_V1_FR]); (gdb) bt #0 count_codecs (lchan=0x1, bts=<optimized out>) at ../../../src/libbsc/abis_rsl.c:104 #1 0x0000000000425661 in abis_rsl_rx_dchan (msg=<optimized out>) at ../../../src/libbsc/abis_rsl.c:1516 #2 abis_rsl_rcvmsg (msg=0x8143f0) at ../../../src/libbsc/abis_rsl.c:2611 #3 0x00007ffff71420d0 in handle_ts1_read (bfd=<optimized out>) at ../../src/input/ipaccess.c:271 #4 ipaccess_fd_cb (bfd=0x815af8, what=1) at ../../src/input/ipaccess.c:386 #5 0x00007ffff7779b62 in osmo_fd_disp_fds (_eset=0x7fffffffe590, _wset=0x7fffffffe510, _rset=0x7fffffffe490) at ../../src/select.c:149 #6 osmo_select_main (polling=polling@entry=0) at ../../src/select.c:189 #7 0x0000000000406fac in main (argc=<optimized out>, argv=0x7fffffffe738) at ../../../src/osmo-nitb/bsc_hack.c:385
2016-10-05DTX: add flag for AMR HR P*Max1-0/+5
Add flag to explicitly track the state of DTX DL for AMR HR whe SID_FIRST_P1 has been sent to L1 already but no next frame available yet: this can be followed by SID_FIRST_P2 or SID_FIRST_INH depending on arrival of voice frame within next 60 ms. Change-Id: Id28b07b8e83cfe5e84de48a2f124084036580cd4
2016-10-05DTX: extend SID cacheMax1-1/+1
In addition to RTP payload SID cache got to store CMR/CMI prefix. Extend the buffer so it can fit in. Change-Id: Ibd4a63604a82cad3ce65f0752bffefa4b083e1b3 Fixes: Coverity CID#149508
2016-10-04msc: add counters to track call attempts/active/success/failedAlexander Couzens1-1/+7
active_calls describe all calls in active state. call.complete Call got terminated by disconnect requested either by MS or MSC. call.incomplete Call got terminated by any other reason. call.active Calls reached active state. Change-Id: I49b93af2e6a0ba16c2fb00b7b83974e8a6a16df3
2016-10-04bsc: count the usage of codec by setting the lchan activeAlexander Couzens1-0/+10
we count the codec when the channel was successful setted up Change-Id: Ifc8a406a11dce16b9e7f3310841e470545550a2c
2016-09-28dyn TS: fix: e1_config.c: switch(pchan) for dyn TSNeels Hofmeyr1-0/+1
Add ts_is_tch() in gsm_data_shared.h/.c and use it to replace a switch on the pchan in e1_config.c. This patch is not due to an actual observed failure. A general grep for switch on pchan turned up this instance that doesn't handle dyn TS properly. Hence this patch is not actually tested with real equipment. Change-Id: Ide4f156034bab77140d2d9a8c462d68ae6f0d6a6
2016-09-28Revert "bts: extend bts_chan_load to allow counting tch only"Neels Hofmeyr1-1/+1
This reverts commit 308cb0719dca3ba8eed1eff2a2124d44f34d9a28. Problems in this commit: openbsc/src/libbsc/chan_alloc.c:523: case GSM_PCHAN_TCH_F_PDCH: This is actually wrong, GSM_PCHAN_TCH_F_PDCH use ts->flags, not ts->dyn below (due to historical reasons and could be unified). 560: if (only_count_tch && !chan_is_tch(ts)) This has exactly one effect: it excludes GSM_PCHAN_TCH_F_PDCH when in PDCH mode, because for all other PDCH (plain PDCH and TCH/F_TCH/H_PDCH in PDCH mode) below ts_subslots() returns 0 and skips the for() loop. I consider this a bug in TCH/F_PDCH, to be fixed in an upcoming commit. I don't see why we need the only_count_tch argument, because this should normally only count TCH, weren't it for the TCH/F_PDCH bug. If dyn TS should be counted differently, we should do this in a different way. Change-Id: I34dbbaf53a800115e3d03bd44028cad675f3b525
2016-09-26mscsplit: add gsm_network backpointer to gsm_subscriber_connectionNeels Hofmeyr1-0/+2
We want to be able to use a network backpointer without having to go through a gsm_bts struct. This commit adds the network pointer, the subsequent commit applies direct access to the network structure from gsm_subscriber_connection. Change-Id: If8870972f1b3e333c2a4cce97cdc95bdee0382a1
2016-09-26mscsplit: abis vty: decouple from global bsc_gsmnet variableNeels Hofmeyr1-0/+2
Publish gsmnet_from_vty() in openbsc/vty.h and use in the abis VTY functions. Change-Id: Ib65a18db06b8bc4fc7d56bf56dd64a52cc1cd253
2016-09-26mscsplit: bsc_vty_init(): decouple from global bsc_gsmnetNeels Hofmeyr1-1/+1
Add an explicit gsm_network pointer instead of using the bsc_gsmnet global. This allows passing a gsm_network struct from the main() scope, which helps to decouple libmsc from libbsc. Change-Id: I9e2c0d9c18d4cebb5efb71565ad84df2bc2e0251
2016-09-26mscsplit: talloc_ctx_init(): decouple from global tall_bsc_ctxNeels Hofmeyr1-0/+2
Decouple the talloc context allocations from global tall_bsc_ctx pointer. It appears that talloc_ctx_init() was intended for general use, since it is located in libcommon. It is currently used only by osmo-nitb; but the upcoming osmo-cscn will use it as well. Instead of defining in osmo-nitb main file, add definition in gsm_data.h. Change-Id: I168106599b788f586be0ff0af4699b9746c1b103
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