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* gsm0808: add encoder for cause codes and use itPhilipp Maier2018-12-081-12/+16
| | | | | | | | | | | | | | | | At the moment the all gsm0808 cause codes are encoded directly using the tlv API directly to put a one byte TLV field. This works ok for most situations where the cause code consists of a single byte. However, gsm0808 specifies a two byte cause code model where cause codes may be extended up to two bytes. Instead of implementing the encoding over and over and again, let's rather have an encoder function we can call. - Add an encoder function that can generate single byte and extended cause codeds and makes the length decision automatically. - Use only this function to append cause codes Change-Id: I71d58fad89502a43532f60717ca022c15c73f8bb
* gsm0808: add message generator for BSSMAP HANDOVER PERFORMEDPhilipp Maier2018-12-031-0/+46
| | | | | | | | We currently have no generator function that can generate BSSMAP HANDOVER PERFORMED messages. Lets add function for this. Change-Id: I825106858bd89afc9837811b8fed2e8accc82441 Related: OS#3645
* Move BSSMAP_MSG_* defines to header fileMax2018-11-301-3/+0
| | | | | | | This will be reused be several tests related to TS 48.008 and TS 29.205 in follow-up commits. Change-Id: I4d8cc05b8df8e70c1f6257e53ae3acec7901681f
* Update gsm0808_create_ass() doxygenMax2018-11-221-2/+2
| | | | | | | | | | | * add spec reference * remove LCLS note: CI parameter is optional but have nothing to do with LCLS It's pretty hard to decipher from the spec what CI is useful for and we have not used it anyway so let's just keep it as "Optional" for now. Change-Id: I5552732afcec48047d993ae6ffb73a3e5d7c9202
* Support cipher mode reject with extended causeMax2018-11-191-0/+24
| | | | | | | | | | | | | * add function to generate cipher mode reject with extended (2-byte) Cause IE * add function to get (extended) Cause value * add corresponding (extended cause) test * update existing (non-extended cause) test * use enum as a parameter for existing non-extended version to make interface more unified Change-Id: Id5509b94a18180a44f45300caaa02b843c166fa3 Related: OS#3187
* Update GSM0808_LCLS enumsMax2018-11-181-0/+3
| | | | | | | | Add values indicating that LCLS control/config/status value has not been received yet. Change-Id: I52dc6a52f5ee043ed2c1625ffecfd495e3c746b1 Related: OS#2487
* Update 3GPP TS 08.08 Cause handlingMax2018-11-181-6/+24
| | | | | | | | | | | | * add Class definitions * add helper to check for extended bit * add helper to get Cause's Class * use enum in gsm0808_cause_name() and gsm0808_create_cipher_reject() to avoid confusion between class and cause * update gsm0808_create_cipher_reject() comments Change-Id: I31b31dfc22eb4b6b07089e1255246ac458125340 Related: OS#3187
* Update cipher reject functionMax2018-11-021-0/+1
| | | | | | | | * add note about (yet) unsupported standard feature * use enum constant instead of hex value Change-Id: I5cc5fc1ae8d5474dbc8d3385a493adf6420a3c98 Related: OS#3187
* gsm0808: cosmetic: rename parameter "reason" to "cause"Philipp Maier2018-10-301-3/+3
| | | | | | | | | The function that generates the clear command takes a parameter "reason", which is the cause code. Lets give it the name "cause" to have a coherent naming scheme that matches the other functions and the 3gpp specs. Change-Id: I7b6c15e8fa8db13deef5041095944ca1c58fb99f
* gsm0808: fix doxygen apidocPhilipp Maier2018-10-301-1/+1
| | | | | | | | The api documentation names a parametery by a different name than it is listed in the parameter list of the function. Lets make the apidoc coherent. Change-Id: Id21ed1e920fb64522a734f206efbe2871ec05b06
* gsm0808: implement BSSMAP Classmark RequestNeels Hofmeyr2018-09-131-0/+13
| | | | | Related: OS#3043 Change-Id: I4a2e1d3923e33912579c4180aa1ff8e8f5abb7e7
* properly handle mandatory cli param of gsm0808_create_paging2Stefan Sperling2018-08-291-5/+4
| | | | | | | | | | | The cell identifier list parameter is mandatory. Document it as such, and tweak code which treated it like an optional parameter. No functional change. The existing code already asserts that a non-NULL value is passed for this parameter. Change-Id: I3716f9d5b210e0a7e6f45c9fe3fc34024e5234ad Related: OS#3021
* gsm0808: inter-bsc HO messages: add missing BSSMAP header, x4Neels Hofmeyr2018-08-281-0/+12
| | | | Change-Id: I9e128ba775227de5e4010f024338a78584f777ea
* gsm0808: Add value_string for encryption algorithmsPau Espin Pedrol2018-07-121-0/+12
| | | | Change-Id: Iadf6460c438d02c53c2eaa9e42d51844ad28859a
* gsm_08_08: gsm0808_permitted_speech does not have value stringsPhilipp Maier2018-07-121-0/+14
| | | | | | | enum gsm0808_permitted_speech does not have any value strings. Lets add value strings to make debugging easier. Change-Id: I5b5612a5df2758b0137a34c17f7c8c2b3f07c806
* add and tweak inter-BSC HO APINeels Hofmeyr2018-06-181-2/+84
| | | | | | | | | | | | | | | | | | Add: gsm0808_create_handover_detect() gsm0808_create_handover_complete() gsm0808_create_handover_failure() To existing structs gsm0808_old_bss_to_new_bss_info and gsm0808_handover_required, add a final 'more_items' flag that makes future extensions API and ABI compatible. Fix the msgb string for Handover Request Ack. Extend some API doc comments. Related: OS#2283 (inter-BSC Handover, BSC side, MT) Change-Id: I03ee7ce840ecfa0b6a33358e7385528aabd4873f
* gsm0808: Add value_string for LCLS related IEsHarald Welte2018-06-021-0/+33
| | | | Change-Id: I18d7a29496929c761aeaba9c0aee847befc13108
* gsm0808: Add encoding functions for LCLS BSSMAP messagesHarald Welte2018-05-301-0/+60
| | | | Change-Id: Ib83143e467df068b7d462a8e51d94b9d961ce18f
* add gsm0808_create_handover_request_ack()Neels Hofmeyr2018-05-271-0/+25
| | | | | Related: OS#2283 (inter-BSC Handover, BSC side, MT) Change-Id: I692292a06c7d66004404560dc4ed933ca9107f9b
* add support for gsm0808 HANDOVER REQUIRED messageNeels Hofmeyr2018-05-271-0/+70
| | | | | Related: OS#2283 (inter-BSC Handover, BSC side, MO) Change-Id: Idb6dc3eab0282158a17091d97ed77c1e2e3eb3c2
* fix spellingThorsten Alteholz2018-05-151-2/+2
| | | | Change-Id: I3ac92217f83279d5f987ab34eb18b2e6cb1c7812
* avoid warning in gsm0808_create_layer3Neels Hofmeyr2018-04-101-1/+11
| | | | Change-Id: Ie098af4fc9640240196eda10fd61edcb3a872455
* gsm0808: Add value strings for BSSMAP cause codesPhilipp Maier2018-03-291-0/+73
| | | | | | | | | | libosmocore has no value strings for BSSMAP cause codes yet. - Add value strings for BSSMAP cause codes and a function to retrieve them Change-Id: I313dd8d7b06374e1e35ddc18b7a42562d9e25d45 Related: OS#1609
* support for more cell ID list types in libosmocoreStefan Sperling2018-03-131-5/+31
| | | | | | | | | | | | | | | | | | | | | | | | Introduce gsm0808_dec_cell_id_list2() with supports additional types of cell identifier lists. The new parsing routines are based on similar routines used by the paging code in osmo-bsc's osmo_bsc_bssap.c. Likewise, introduce gsm0808_enc_cell_id_list2() with support for the same additional types of cell identifier lists. The old API using struct gsm0808_cell_id_list is deprecated. The previous definition was insufficient because it assumed that all decoded cell ID types could be represented with a single uint16_t. It was declared in a GSM protocol header (gsm/protocol/gsm_08_08.h) despite being a host-side representation of data in an IE. The only user I am aware of is in osmo-msc, where this struct is used for one local variable. osmo-msc releases >= 1.1.0 make use of this API. While here, fix a small bug in a test: test_gsm0808_enc_dec_cell_id_list_bss() set the cell ID type to 'LAC' but obviously wants to use type 'BSS'. Change-Id: Ib7e754f538df0c83298a3c958b4e15a32fcb8abb Related: OS#2847
* implement support for 3-digit MNC with leading zerosNeels Hofmeyr2018-02-281-4/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable representing three-digit MNC with leading zeros. The MNCs 23 and 023 are actually different; so far we treated both as 23. Re-encode an incoming BCD or string of 023 as it were, i.e. not dropping the leading zero as 23. Break ABI compatibility by changing the size and ordering of structs gprs_ra_id, osmo_plmn_id, osmo_cell_global_id, ... by adding an mnc_3_digits flag. Change ordering in gprs_ra_id because the canonical oder is {Mobile Country Code, Mobile Network Code}, so have the mcc member first. ABI compatibility cannot be maintained for struct gprs_ra_id, since it is a direct member of structs bssgp_bvc_ctx and bssgp_paging_info, and even just adding a flag to the end would cause ABI changes of those structs. Similarly, osmo_plmn_id is a direct member of osmo_location_area_id, and so forth. Add new API to set and read this additional flag to preserve leading zeros: - osmo_plmn_to_bcd(), osmo_plmn_from_bcd() after gsm48_mcc_mnc_to_bcd() and gsm48_mcc_mnc_from_bcd(). - gsm48_decode_lai2(), gsm48_generate_lai2() after gsm48_decode_lai(), gsm48_generate_lai(). - gsm0808_create_layer3_2() after gsm0808_create_layer3() and gsm0808_create_layer3_aoip(). - various osmo_*_name() functions in gsm23003.h (osmo_rai_name() still in gsm48.h close to struct gprs_ra_id definition). The amount and duplication of these may seem a bit overboard, but IMO they do make sense in this way. Though most code will soon see patches unifying the data structures used, in some cases (vty, ctrl) they are required singled out. Without these functions, the formatting ("%0*u", mnc_3_digits ? 3 : 2, mnc) would be duplicated all over our diverse repositories. In various log output, include the leading MNC zeros. Mark one TODO in card_fs_sim.c, I am not sure how to communicate a leading zero to/from a SIM card FS. The focus here is on the core network / BSS. To indicate ABI incompatibility, bump libosmogsm and libosmogb LIBVERSIONs; adjust debian files accordingly. Implementation choices: - The default behavior upon zero-initialization will be the mnc_3_digits flag set to false, which yields exactly the previous behavior. - I decided against packing the mnc with the mnc_3_digits field into a sub-struct because it would immediately break all builds of dependent projects: it would require immediate merging of numerous patches in other repositories, and it would make compiling older code against a newer libosmocore unneccessarily hard. Change-Id: Id2240f7f518494c9df6c8bda52c0d5092f90f221
* gsm: add gsm0808_speech_codec_type_namesNeels Hofmeyr2018-01-121-0/+14
| | | | | | | Used for logging Speech Codec List entries in osmo-bsc, during handover decision. Change-Id: Ie6418d16db333188e9bcd2b32b7216f277ae8832
* gsm0808_create_cipher_reject: Fix encoding of Cause IEHarald Welte2017-12-171-1/+2
| | | | | | | | | The Cause IE in the 08.08 CIPHER MODE REJECT is a normal TLV IE, and not just a value. Let's make sure we encode the cause value properly. Change-Id: I4f5b231edf6dcb0a9c2bbafb2a59f301f3b2402b Closes: OS#2766
* Fix/Update copyright notices; Add SPDX annotationHarald Welte2017-11-131-0/+2
| | | | | | | | Let's fix some erroneous/accidential references to wrong license, update copyright information where applicable and introduce a SPDX-License-Identifier to all files. Change-Id: I39af26c6aaaf5c926966391f6565fc5936be21af
* [doc] Properly define gsm0800 group and move all related files into itHarald Welte2017-10-171-2/+3
| | | | Change-Id: I91920c69c86d6a1932172becacb76faff2d3eb1e
* doxygen: unify use of \file across the boardNeels Hofmeyr2017-06-231-1/+3
| | | | | | | | | | | | | | | | | Considering the various styles and implications found in the sources, edit scores of files to follow the same API doc guidelines around the doxygen grouping and the \file tag. Many files now show a short description in the generated API doc that was so far only available as C comment. The guidelines and reasoning behind it is documented at https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation In some instances, remove file comments and add to the corresponding group instead, to be shared among several files (e.g. bitvec). Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
* doxygen: enable AUTOBRIEF, drop \briefNeels Hofmeyr2017-06-231-23/+23
| | | | | | | | | | Especially for short descriptions, it is annoying to have to type \brief for every single API doc. Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes the first sentence of an API doc as the brief description. Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
* update/extend doxygen documentationHarald Welte2017-06-121-0/+100
| | | | | | | | | It's a pity that even with this patch we still are fare away from having the whole API documented. However, at least we have a more solid foundation. Updates not only extend the documentation, but also make sure it is rendered properly in the doxygen HTML. Change-Id: I1344bd1a6869fb00de7c1899a8db93bba9bafce3
* use osmo_{htonl,htons,ntohl,ntohs}() functions all over libosmocoreHarald Welte2017-05-151-6/+5
| | | | | | This gets us one step closer to fixing the embedded build Change-Id: I3fc2639b6ade9ab138766987eceab7ec9498fdc7
* gsm0808: Add create functions for BSS_MAP_MSG_ASSIGMENT_RQSTPhilipp Maier2017-04-081-0/+56
| | | | | | | | | | gsm0808.h/c lacks functionality to generate BSS_MAP_MSG_ASSIGMENT_RQST messages. These messages are required if the code is used in an MSC implementation. This commit adds a gsm0808_create_assignment() function, that generates an A/AoiP BSS_MAP_MSG_PAGING message. Change-Id: I4d1d455a1e1cf95407e23ded7b7defbcf2dd6ff0
* gsm0808: Add create functions for BSS_MAP_MSG_PAGINGPhilipp Maier2017-04-081-0/+52
| | | | | | | | | | gsm0808.h/c lacks functionality to generate BSS_MAP_MSG_PAGING messages. These messages are required if the code is used in an MSC implementation. This commit adds a gsm0808_create_paging() function, that generates an A/AoiP BSS_MAP_MSG_PAGING message. Change-Id: I9afecf0109305ca5153bf081bb29cd94071dd2b7
* gsm0808: Add create functions for CIPHER MODE COMMANDPhilipp Maier2017-04-081-0/+33
| | | | | | | | | | gsm0808.h/c lacks functionality to generate CIPHER MODE COMMAND messages. These messages are required if the code is used in an MSC implementation. This commit adds a gsm0808_create_cipher() function, that generates an A/AoiP CIPHER MODE COMMAND message. Change-Id: I8eb1c357860c3e740b0f5d17e1c256bc87920958
* gsm0808: Add AoIP specific elements to gsm0808_create_... functionsPhilipp Maier2017-04-081-5/+55
| | | | | | | | | the classic A implementation in libosmocore lacks support for AoIP message elements. This patch adds support for AoIP by adding a set of new gsm0808_create_..., which support the missing AoIP message elements Change-Id: I77f866abec1822d19871052f3c647ad782785b34
* fix: gsm0808.c: unterminated value_string array gsm0808_bssap_namesNeels Hofmeyr2017-03-021-0/+1
| | | | Change-Id: Ie38bae32372dc41e1902a8f6f0bc550ae515cfb8
* gsm0808: Remove duplicate initializationHolger Hans Peter Freyther2015-03-181-1/+0
| | | | | | | | | | | | | | | These types were compatible so simply remove one. Fixes: gsm0808.c:323:37: warning: initializer overrides prior initialization CC gsm0480.lo of this subobject CC abis_nm.lo [-Winitializer-overrides] [GSM0808_IE_LSA_INFORMATION] = { TLV_TYPE_TLV }, ^~~~~~~~~~~~ gsm0808.c:316:36: note: previous initialization is here [GSM0808_IE_LSA_INFORMATION] = { TLV_TYPE_TLV }, ^~~~~~~~~~~~
* gsm0808: Fix copy and paste pointed out by clangHolger Hans Peter Freyther2014-08-211-1/+1
| | | | | | | | | | | | | | | The element following the identifier list was the GSM0808_IE_LSA_INFORMATION. It is a TLV type as well and the issue got introduced in 92107dfd3b99ab0dbb0f4770286454ad94a36de2. Fixes: gsm0808.c:316:40: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [GSM0808_IE_LSA_IDENTIFIER_LIST] = { TLV_TYPE_TLV }, ^~~~~~~~~~~~ gsm0808.c:315:40: note: previous initialization is here [GSM0808_IE_LSA_IDENTIFIER_LIST] = { TLV_TYPE_TLV },
* update TS 08.08 header + TLV definitions to TS 48.008 / 11.7.0Harald Welte2014-06-211-16/+149
| | | | | | | | | | This adds support for A-over-IP and LCLS related message/IEI definitions. Old definitions are in decimal, which is very hard (at least for me) to compare with the binary tables in the spec. Hex is much easier to manually compare for completeness/correctness. I didn't touch the existing definitions, but think they should move to hex, too.
* gsm0808.c: Add TLV definition for LAYER3_HEADER_INFORMATIONDmitri Soloviev2013-07-111-0/+1
| | | | | This is required for osmo-bsc to parse Alcatel S-12 CIPHER MODE COMMAND in osmo-bsc.
* introduce gsm0808_create_reset_ack()Harald Welte2013-06-291-0/+13
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* GSM 08.08: change gsm0808_create_classmark_update() prototypeHarald Welte2012-01-261-3/+6
| | | | | The caller explicitly specifies CM2 and CM3, rather than one blob containing both.
* GSM 08.08: Cleanup the code, remove lots of magic hard-coded numbersHarald Welte2012-01-261-116/+60
| | | | | | | Rather than manually hard-coding numbers and using byte-arrays, we use the msgb_*_{push,put}() function family of libosmocore/libosmogsm. This is currently untested.
* gsm 08.08: use ANSI function definition with (void)Harald Welte2011-07-161-1/+1
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* GSM 08.08: Fix generation of CIPHER MODE REJECTHarald Welte2011-07-121-1/+1
| | | | | The message has a total length of 4 octets, so don't allocate only 3 in the msgb.
* gsm 08.08: add value_strings and gsm0808_msg_name() functionHarald Welte2011-07-111-0/+86
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* include: reorganize headers file to include/osmocom/[gsm|core]Pablo Neira Ayuso2011-03-231-3/+3
| | | | | | | | | | | | This patch moves all GSM-specific definitions to include/osmocom/gsm. Moreover, the headers in include/osmocore/ have been moved to include/osmocom/core. This has been proposed by Harald Welte and Sylvain Munaunt. Tested with `make distcheck'. Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
* This patch moves the GSM-specific functions to the new libraryPablo Neira Ayuso2011-03-231-0/+369
libosmogsm which is provided by libosmocore. I have also moved generate_backtrace() to backtrace.c instead of gsm_utils.c, otherwise the timer and msgfile tests depend on libosmogsm. Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
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