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2019-11-27Introduce fields related to DTAP DLCIPau Espin Pedrol1-0/+2
Change-Id: Iec448af02d28e6c5c573e68a0b4a86067ec7e561
2019-11-03gsm_04_08.h: Introduce API osmo_gsm48_rfpowercap2powerclass()Pau Espin Pedrol1-0/+1
Related: OS#4244 Change-Id: I32e9cc1c2397b44f0d48db2acdf782a821365b63
2019-10-28gsm0508: add functions to calculate beginning of a blockPhilipp Maier1-0/+1
The calculation of the beginning of a block for TCH/F, TCH/H and FACCH can be challenging since those channels are affected by the diagonal interleaving of the TCH channels. However, GSM 05.02 Section 7 Table 1 of 5 specifies how the blocks are distributed over the TDMA frame interval. Lets add a mapping function that is based on that table Related: OS#3803 Change-Id: I3d71c66f8c401f5afbad9b1c86c24580dab9e0ce
2019-07-20cbsp: Introduce osmo_cbsp_errstrHarald Welte1-0/+1
Rather than having the encoder/decoder library print some log messages in case of encoding/decoding errors, let's provide something akin to 'errno', but with a string instead of a numeric error code. The 'osmo_cbsp_errstr' global variable (if set) contains a human-readable string describing the most recent encoding/decoding error. It exists separately for each thread and hence can be used safely in multi-threaded environments. Change-Id: Id9a5a595a76ba278647aee9470ded213d8464103
2019-07-20CBSP (Cell Broadcast Service Protocol; 3GPP TS 48.049) supportHarald Welte1-0/+11
This introduces definitions as well as a parser+encoder for the Cell Broadcast Service Protocol (CBSP) as specified in 3GPP TS 48.049. CBSP is used on the interface between CBC and BSC. Related: OS#3537 Change-Id: I5b7ae08f67e415967b60ac4b824db9e22ca00935
2019-06-05lapdm: Allow user to specify T200 values; Use correct N200 valuesHarald Welte1-0/+2
TS 04.06 specifies a N200 re-transmission counter that depends on the channel type, which we didn't care about at all so far. Let's have the caller tell us the channel type so we can internally look up the correct N200 value for it. At the same time, permit the user to specify T200 re-transmission timer values for each SAPI on both DCCH and ACCH, which is required at least in the BTS as per GSM TS 12.21. Also, extend the timer resolution of the API from seconds to milli-seconds, which is more applicable as particularly on the FACCH the recommended values are in the 200ms range. Change-Id: I90fdc4dd4720d4e02213197c894eb0a55a39158c Related: OS#3906 Related: OS#2294 Related: OS#4037
2019-06-04gsm0808_utils: Add gsm0808_decode_cell_id_u()Harald Welte1-0/+1
This function parses a single Cell ID list element into a 'union gsm0808_cell_id_u'. This function is going to be used by the upcoming CBSP support. Related: OS#3537 Change-Id: I08b33881667aa32f01e53ccb70d44d5b79c7c986
2019-05-28rest_octets: Remove SI2ter + SI2bis encoders that don't do anythingHarald Welte1-2/+0
The library should either provide functions that implement encoding of those rest octets, or it shouldn't. Providing a function that doesn't do anything but pad the buffer is useless. Change-Id: Ie10684de6a6b2663e2a871fcdb2b275b6ad7a1e7
2019-05-28rest_octets: Add function to parse SI3 rest octetsHarald Welte1-0/+1
Change-Id: I690cf308311f910005a325d50f5d5d825678d2b2 Related: OS#3075 Related: OS#4023
2019-05-28rest_octets: Suffix encoder functiosn with _encodeHarald Welte1-8/+8
... otherwise it's not really clear what they do. Change-Id: I08e0ca9a8d13c7aa40b9d90f34f0e13adb87d4e0
2019-05-28rest_octets: Fix export of osmo_gsm48_rest_octetsHarald Welte1-8/+8
the symbols had an omso_ prefix, while the entry in the .map file didn't. As a result, all related symbols were never exported and hence not usable by any users of the dynamic library. Change-Id: I8b1ee2405f6338507e9dfb5f1f437c4c2db2e330
2019-05-19TLV: Add one-shot TLV encoderHarald Welte1-0/+3
So far, the TLV code contained two types of functions * tlp_parse() to parse all TLVs according to definition into tlvp_parsed * various helper functions to encode individual TLVs during message generation This patch implements the inverse of tlv_parse(): tlv_encode(), which takes a full 'struct tlv_pared' and encodes all IEs found in it. The order of IEs is in numerically ascending order of the tag. As many protocols have different IE/TLV ordering requirements, let's add a tlv_encode_ordered() function where the caller can specify the TLV ordering during the one-shot encode. Change-Id: I761a30bf20355a9f80a4a8e0c60b0b0f78515efe
2019-05-13gsm0808: Introduce Osmocom extensions to announce Osmux supportPau Espin Pedrol1-0/+1
IE GSM0808_IE_OSMO_OSMUX_SUPPORT (T, 1 byte) is sent in AoIP appended to BSSMAP RESET in order to announce the peer that its MGW supports handling Osmux streams upon call set up. IE GSM0808_IE_OSMO_OSMUX_CID (TV, T 1 byte & V 1 byte) is sent in AoIP during call set up: * MSC->BSC Assignment Request * BSC->MSC Assignemnt Complete The 1 byte value contains the local Osmux CID, aka the recvCID aka CID where the peer sending the Assign Req/Compl will look for Osmux frames on that call. Hence, the peer receiving this CID value must use it to send Osmux frames for that call. As a result, a given call leg BSC<->MSC can have one different Osmux CID per direction. For example: * MS => MGW_BSC ==CID 0==> MGW_MSC * MS <= MGW_BSC <=CID 1=== MGW_MSC This allows for setups with 256 call legs per BSC on scenarios where NAT is not a problem, where MSC can have a pool of 256 CID per MGW_BSC (or remote peer). Related: OS#2551 Change-Id: I28f83e2e32b9533c99e65ccc1562900ac2aec74e
2019-05-10gsm0808_utils: Introduce gsm0808_msgb_put_cell_id_u()Harald Welte1-0/+1
This function is doing the bulk work of encoding a given Cell ID List item. gsm0808_enc_cell_id_list2() is modified to be a wrapper / loop around the new function. The purpose of this is to expose Cell ID List Entry encoding so that the upcoming CBSP protocol encoder can re-use this code. Related: OS#3537 Change-Id: I6cc567798e20365e6587e6b2988e834306d8c80c
2019-05-05add gsm0808_create_handover_request_ack2 to add AoIP RTP addrNeels Hofmeyr1-0/+1
osmo-bsc so far omits the AoIP Transport Layer Address from its Handover Request Acknowledge message, which breaks inter-BSC Handover for AoIP. Allow fixing that. One quirk I really don't like about this: I would prefer to directly use struct sockaddr_storage as a member of the struct gsm0808_handover_request_ack. Even though struct sockaddr_storage appears in various function signatures, the gsm0808.c actually also gets built on embedded systems that lack arpa/inet.h (for me indicated by the ARM build job on jenkins). Compiling gsm0808.c works only because the actual coding of struct sockaddr_storage is implemented in gsm0808_util.c, which (apparently) does not get built on embedded and hence, even though there are undefined references to e.g. gsm0808_enc_aoip_trasp_addr() it works. Related: I4a5acdb2d4a0b947cc0c62067a67be88a3d467ff (osmo-bsc) Change-Id: Ia71542ea37d4fd2c9fb9b40357db7aeb111ec576
2019-05-03add gsm48_decode_bcd_number2() from osmo-mscNeels Hofmeyr1-0/+1
gsm48_decode_bcd_number() is unable to provide proper bounds validation of input and output data, hence osmo-msc's vlr.c introduced a static decode_bcd_number_safe() a long time ago. Move to libosmocore. I need to use the same function to decode an MSISDN during inter-MSC Handover, instead of making it public in osmo-msc, rather deprecate the unsafe function and provide a safer version for all callers. Mark the old one deprecated. Change-Id: Idb6ae6e2f3bea11ad420dae14d021ac36d99e921
2019-05-03BSSMAP: add messages for inter-BSC and inter-MSC HandoverNeels Hofmeyr1-0/+4
Change-Id: I9dac375331f6bea744769e973725d58e35f87226
2019-04-13GSUP: add Message Class IENeels Hofmeyr1-0/+1
osmo-msc and osmo-hlr have distinct subsystems handling incoming GSUP messages. So far we decide entirely by message type which code path should handle a GSUP message. Thus no GSUP message type may be re-used across subsystems. If we add a GSUP message to indicate a routing error, it would have to be a distinct message type for subscriber management, another one for SMS, another one for USSD... To allow introducing common message types, introduce a GSUP Message Class IE. In the presence of this IE, GSUP handlers can trivially direct a received message to the right code path. If it is missing, handlers can fall back to the previous switch(message_type) method. Change-Id: Ic397a9f2c4a7224e47cab944c72e75ca5592efef
2019-04-10Add _c versions of functions that otherwise return static buffersHarald Welte1-0/+20
We have a habit of returning static buffers from some functions, particularly when generating some kind of string values. This is convenient in terms of memory management, but it comes at the expense of not being thread-safe, and not allowing for two calls of the related function within one printf() statement. Let's introduce _c suffix versions of those functions where the caller passes in a talloc context from which the output buffer shall be allocated. Change-Id: I8481c19b68ff67cfa22abb93c405ebcfcb0ab19b
2019-04-03Add _buf() functions to bypass static string buffersHarald Welte1-0/+18
We have a number of static buffers in use in libosmo*. This means the related functions are not usable in a thread-safe way. While we so far don't have many multi-threaded programs in the osmocom universe, the static buffers also prevent us from calling the same e.g. string-ify function twice within a single printf() call. Let's make sure there's an alternative function in all those cases, where the user can pass in a caller-allocated buffer + size, and make the 'classic' function with the static buffer a wrapper around that _buf() variant. Change-Id: Ibf85f79e93244f53b2684ff6f1095c5b41203e05
2019-03-08add gsm0808_cell_id_from_cgi(), gsm0808_cell_id_to_cgi()Neels Hofmeyr1-0/+2
CGI to Cell ID: for example, for Paging, osmo-msc has a CGI for a subscriber and needs to send out a Cell Identifier IE. Makes sense to add this conversion here. Cell ID to CGI: for a Layer 3 Complete, a subscriber sends the current cell in the form of a Cell Identifier, which we store as a CGI, if necessary enriched with the local PLMN. Add enum with bitmask values to identify parts of a CGI, for the return value of gsm0808_cell_id_to_cgi(). Can't use enum CELL_IDENT for that, because it doesn't have a value for just a PLMN (and is not a bitmask). Change-Id: Ib9af67b100c4583342a2103669732dab2e577b04
2019-02-26LCLS: add string dump helpersMax1-0/+2
Add functions to dump LCLS (without GCR) and GCR. Dumping entire struct results in inconveniently long string hence the separate functions. Both use talloc functions so they expect caller to take care of providing proper allocation context and freeing memory. Change-Id: Ic3609224c8f3282d667e75f68bc20327e36eb9e6
2019-02-15fix osmo_gsm48_classmark* libosmogsm.map entriesNeels Hofmeyr1-6/+6
When the initial patch was tweaked from osmo_classmark_* to osmo_gsm48_classmark_* naming, the libosmogsm.map entries were forgotten to be changed as well. Change-Id: I53a41b5e965a529d3c146ee85102f7f1725c6014
2019-02-08gsm/gsm0480: introduce gsm0480_create_release_complete()Vadim Yanitskiy1-0/+2
In OsmoMSC, it's required to be able to specify a particular GSM 04.07 transaction ID for GSM 04.80 Release complete message instead of the hard-coded value, that is used gsm0480_create_ussd_release_complete(). Let's finally deprecate gsm0480_create_ussd_release_complete(), and introduce a new function without USSD prefix, as this message is also used in other "structured" supplementary services. Change-Id: Ie3ac85fcef90a5e532334ba3482804d5305c88d7
2019-02-05gsm0808: Add CSFB indication IE to BSSMAP CLEAR COMMANDPhilipp Maier1-0/+1
When a call that was established in a CSFB context ends the CLEAR COMMAND that is send from the BSC to the MSC should contain a CSFB indication IE, which consists of just the IE byte itsslef. This additional IE tells the BSC to include other CSFB related IEs into the RR Release message. Change-Id: Id8a75e1da2d5f520064666e4ee413d1c91da6ae3 Related: OS#3778
2019-01-29add osmo_classmark_* APINeels Hofmeyr1-0/+7
osmo-bsc and osmo-msc implement identical Classmark structures. It makes sense to define once near the gsm48 protocol definitions. Also move along some generic Classmark API from osmo-msc. Change-Id: Ifd27bab0380f7ad0c44c719aa6c8bd62cf7b034c
2019-01-28gsm0808: add BSSMAP Cell Identifier matching APINeels Hofmeyr1-0/+2
Add * osmo_lai_cmp() (to use in gsm0808_cell_id_u_matches()) * osmo_cgi_cmp() (to use in gsm0808_cell_id_u_matches()) * gsm0808_cell_id_u_match() (to re-use for single IDs and lists) * gsm0808_cell_ids_match() * gsm0808_cell_id_matches_list() * Unit tests in gsm0808_test.c Rationale: For inter-BSC handover, it is interesting to find matches between *differing* Cell Identity kinds. For example, if a cell as CGI 23-42-3-5, and a HO for LAC-CI 3-5 should be handled, we need to see the match. This is most interesting for osmo-msc, i.e. to direct the BSSMAP Handover Request towards the correct BSC or MSC. It is also interesting for osmo-bsc's VTY interface, to be able to manage cells' neighbors and to trigger manual handovers by various Cell Identity handles, as the user would expect them. Change-Id: I5535f0d149c2173294538df75764dd181b023312
2019-01-19LCLS: add status parameter to Assignment Completed messageMax1-0/+1
* add gsm0808_create_ass_compl2() with additional gsm0808_lcls_status parameter and make gsm0808_create_ass_compl() into trivial wrapper around it * update tests accordingly Change-Id: I547c6b8707123aa8c1ef636db88908df112d90a4 Related: OS#2487
2019-01-14LCLS: add GCR comparison helperMax1-0/+1
Change-Id: I9e3b5560a058b976638d03cb819415d237ae9984
2019-01-14change GSM48_CMSERV_* to enum type, add namesNeels Hofmeyr1-0/+1
Prepare handling multiple CM Service Requests in osmo-msc: an enum is more clear than an int and #defines for passing around and count CM Service types. Change-Id: I9c2a7adc45ab7a1a7519168e965e7d805e1481ff
2019-01-14gsm23003: add osmo_imei_str_valid()Oliver Smith1-0/+1
Verify 14 digit and 15 digit IMEI strings. OsmoHLR will use the 14 digit version to check IMEIs before writing them to the DB. Place the Luhn checksum code in a dedicated osmo_luhn() function, so it can be used elsewhere. Related: OS#2541 Change-Id: Id2d2a3a93b033bafc74c62e15297034bf4aafe61
2019-01-12port rest octets encoding code from osmo-bscStefan Sperling1-0/+8
As part of fixing issue OS#3075, we want to migrate support for encoding system information from osmo-bsc to libosmocore. This change ports osmo-bsc code for encoding SI rest octets. The conversion was a bit tricky in some places because some functions receive a 'struct gsm_bts' parameter in osmo-bsc. In this libosmocore version, such functions expect parameters which correspond to the individual fields of 'struct gsm_bts' which are used by these functions. Several structs from osmo-bsc's system_information.h are now also declared in libosmocore headers, with an added osmo_ prefix to avoid collisions with existing definitions in osmo-bsc. Some helpers were ported from osmo-bsc's system_information.c to libosmocore's gsm48_rest_octets.c. Contrary to osmo-bsc's implementation they are now only visible within this file. Unfortunately, this code ported from osmo-bsc lacks unit tests. Change-Id: I47888965ab11bba1186c21987f1365c9270abeab Related: OS#3075
2019-01-12port arfcn range encode support from osmo-bscStefan Sperling1-0/+9
As part of fixing issue OS#3075, we want to migrate support for encoding system information from osmo-bsc to libosmocore. This change ports one of the prerequisites for doing so: osmo-bsc code for range-encoding ARFCNs, including tests. An osmo_gsm48_ prefix has been prepended to public symbols in order to avoid clashes with existing symbols in osmo-bsc code. Change-Id: Ia220764fba451be5e975ae7c5eefb1a25ac2bf2c Related: OS#3075
2019-01-08add osmo_lu_type_names[], osmo_lu_type_name()Neels Hofmeyr1-0/+1
Move lupd_names[] from osmo-msc to libosmo-gsm. Change-Id: Ica25919758ef6cba8348da199b0ae7e0ba628798
2019-01-08add osmo_mi_name(), for MI-to-string like "IMSI-123456"Neels Hofmeyr1-0/+1
We have gsm48_mi_to_string() and osmo_bcd2str(), but still lack a function that conveniently prints both MI type and value in one function call. Related: http://people.osmocom.org/neels/mi_mi_mi.jpg Change-Id: I7798c3ef983c2e333b2b9cbffef6f366f370bd81
2019-01-03gsm_utils: add enum osmo_rat_type, from osmo-msc enum ran_typeNeels Hofmeyr1-0/+2
In the MSC, we have RAN types GERAN_A and UTRAN_IU, now we need a similar enum in osmo-hlr's GSUP client. Naming: in the MAP specifications, the RAN type is mostly called RAT type, (Radio Access Network vs. Radio Access Technology?). Since GSUP is more about MAP messages, I'm calling the enum osmo_rat_type. Rationale: osmo-msc and osmo-sgsn want to tell the osmo-hlr which RAT a subscriber is calling on. A subsequent patch will extend the GSUP protocol and add a RAT types IE. Change-Id: I659687aef7a4d67ca372a39fef31dee07aed7631
2018-12-23LCLS: enc/dec entire parameter set instead of GCRMax1-2/+2
In 3GPP TS 48.008 the Global Call Reference IE is only used in HANDOVER REQUEST (§3.2.1.8) and ASSIGNMENT REQUEST (§3.2.1.1) messages which also include LCLS Config and CSC parameters. Hence, there's no point in using GCR encode/decode functions alone. Introduce gsm0808_dec_lcls() and gsm0808_enc_lcls() as trivial wrappers on top of GCR enc/dec routines which are made static. Adjust tests accordingly. Test output intentionally left unchanged. Change-Id: Icfbb2404e1a1d500243e2071173299b557369335
2018-12-18GSUP/SMS: introduce MO-/MT-FORWARD-SM messagesVadim Yanitskiy1-0/+5
According to 3GPP TS 29.002, there are two services: - MAP-MO-FORWARD-SHORT-MESSAGE (see 12.2), - MAP-MT-FORWARD-SHORT-MESSAGE (see 12.9), which are used to forward MO/MT short messages. This change replicates both services as GSUP messages: - OSMO_GSUP_MSGT_MO_FORWARD_SM_*, - OSMO_GSUP_MSGT_MT_FORWARD_SM_*. Please note, that only the 'must-have' IEs are introduced by this change, in particular the following: - OSMO_GSUP_SM_RP_MR_IE (see note below), - OSMO_GSUP_SM_RP_DA_IE (see 7.6.8.1), - OSMO_GSUP_SM_RP_OA_IE (see 7.6.8.2), - OSMO_GSUP_SM_RP_UI_IE (see 7.6.8.4), - OSMO_GSUP_SM_RP_MMS_IE (see 7.6.8.7), - OSMO_GSUP_SM_RP_CAUSE_IE (see GSM TS 04.11, 8.2.5.4), where both SM_RP_DA and SM_RP_OA IEs basically contain a single nested TV of the following format: - T: identity type (see 'osmo_gsup_sms_sm_rp_oda_t'), - V: encoded identity itself (optional). According to GSM TS 04.11, every single message on the SM-RL has an unique message reference (see 8.2.3), that is used to link an RP-ACK or RP-ERROR message to the associated (preceding) RP-DATA or RP-SMMA message transfer attempt. In case of TCAP/MAP, this message reference is being mapped to the Invoke ID. But since GSUP has no 'Invoke ID' IE, and it is not required for other applications (other than SMS), this change introduces a special 'SM_RP_MR' IE that doesn't exist in MAP. Change-Id: Ibe325c64ae2d6c626b232533bb4cbc65fc2b5d71 Related Change-Id: (docs) Ie0150756c33c1352bc4eb49421824542c711175c Related Change-Id: (TTCN) Ibf49474a81235096c032ea21f217170f523bd94e Related: OS#3587
2018-12-14LCLS: add gsm0808_create_ass2()Max1-0/+1
It allows setting additional assignment parameters explicitly. Change-Id: Id89765df3f8c12f55f73f1d7a9d90c8883eb3bba Related: OS#2487
2018-12-14LCLS, TS 48.008: add GCR IE encoding/decodingMax1-0/+2
* add functions to encode Global Call. Ref. from TS 29.205 as 3GPP TS 48.008 §3.2.2.115 information element * add corresponding tests Change-Id: I82ce0207dc8de50689a8806c6471ad7fbae6219d
2018-12-14LCLS, TS 29.205: add GCR routinesMax1-0/+3
Add functions to encode and decode Global Call Reference as per 3GPP TS 29.205 Table B 2.1.9.1 add corresponding tests. Change-Id: Iee95aa4e5c056645b6cb5667e4a067097d52dfbf Related: OS#2487
2018-12-08gsm0808: add encoder for cause codes and use itPhilipp Maier1-0/+1
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
2018-12-07gsm29118: add generator functions for GSM29118 messagesPhilipp Maier1-0/+15
We already have some GSM29118 related definitions and functions in libosmocore. Lets also add some functions to generate GSM29118 messages (similar to those we have for GSM0808). Change-Id: Ic87f8a771b87b52215d0a7451b67794557b80b8a Related: OS#3615
2018-12-03gsm0808: add message generator for BSSMAP HANDOVER PERFORMEDPhilipp Maier1-0/+1
We currently have no generator function that can generate BSSMAP HANDOVER PERFORMED messages. Lets add function for this. Change-Id: I825106858bd89afc9837811b8fed2e8accc82441 Related: OS#3645
2018-11-20gsm: Deprecate buggy gsm_arfcn2band API and introduce gsm_arfcn2band_rcPau Espin Pedrol1-0/+1
ARFCNs are values in well defined ranges. Until this patch, ARFCNs not belonging to any band were blindly assigned to DCS1800 by gsm_arfcn2band, causing unnoticed bugs and misconfigurations in osmo-bsc. Previous API gsm_arfcn2band cannot accomodate this kind of check easily, so let's deprecate it to tell people to use a new API gsm_arfcn2band_rc which performs this kind of checks and allows callers to log failures, misconfigurations, etc. At the same time, modify implementation of gsm_arfcn2band to abort if an invalid ARFCN is passed, this way users of this API can notice they are passing wrong data to it that most probably will produce unexpected results. Related: OS#3063 Change-Id: I780d452dcebce385469e32ef2fd844df6033393a
2018-11-19Support cipher mode reject with extended causeMax1-0/+2
* 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
2018-11-18Update 3GPP TS 08.08 Cause handlingMax1-0/+1
* 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
2018-11-16gsm29118: add value strings for SGSAP IEIPhilipp Maier1-0/+1
The value strings for the SGSAP IEI are missing, lets add a set of value strings and a function to retrieve them. Change-Id: I2787303174f74ffba86675bce2c12f680d8ea708 Related: OS#3615
2018-10-28gsm23003: Add MME domain name related helper functionsHarald Welte1-0/+6
osmo_gen_mme_group_domain(), osmo_gen_mme_group_domain() and osmo_gen_home_network_domain() Change-Id: Ia882d9db05ec0037e593aeebea21bc31adb680bb
2018-10-21SGsAP protocol definitions (header + C file)Harald Welte1-0/+9
Change-Id: Idddfc9b851eb4c2fa7dd661a9ce1b03a04883109
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