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2018-10-21SGsAP protocol definitions (header + C file)Harald Welte1-0/+169
Change-Id: Idddfc9b851eb4c2fa7dd661a9ce1b03a04883109
2018-10-21gsm_08_58.h: Introduce struct abis_rsl_chan_nrPau Espin Pedrol1-3/+32
It will allow to make code handling chan_nr values more easier to read and less prone to errors. union is used to be able to get the full octet in case we need to pass it somewhere else or encode it. An extra union is used in struct abis_rsl_common_hdr and others to allow using fields directly while keeping API compatibility. Change-Id: Icd6822021207270a00106c50f8ca6b93c1250df9
2018-10-10gsm_08_58.h: Introduce struct abis_rsl_link_idPau Espin Pedrol1-1/+24
It will allow to make code handling link_id values more easier to read and less prone to errors. union is used to be able to get the full octet in case we need to pass it somewhere else or encode it. An extra union is used in struct abis_rsl_common_hdr to allow using fields directly while keeping API compatibility. Change-Id: Ibd75a493bcfdf46c028ea466867d0c0d83d46343
2018-09-25gsm0808: add function to convert AMR S15-S0 to gsm0408 settingsPhilipp Maier1-0/+1
Add a function to convert S0-S15 bits to struct gsm48_multi_rate_conf, which hold the codec settings for AMR. Change-Id: I973736273c236eee84decf15868190e339c3fed4 Related: OS#3548
2018-09-25gsm_utils: add function to get value strings for gsm48_chan_modePhilipp Maier1-0/+2
The enum gsm48_chan_mode has value strings, but no function to retrieve those strings. Lets add one. Change-Id: If715705e1ebdfcfdfae1c2099932f7bb8b3861a7
2018-09-21gsm0808_utils: constify parameterPhilipp Maier1-1/+1
parameter cfg in gsm0808_sc_cfg_from_gsm48_mr_cfg() is used read only. Lets add a const to make this clear to the compiler. Change-Id: I31e8d273b070b0afc446a298299d4f502d6c396b
2018-09-19gsm0808: add function to convert amr gsm0408 setings to gsm0808Philipp Maier2-0/+15
Add a function to convert struct gsm48_multi_rate_conf, which holds the codec settings for AMR, to S0-S15 bit representation as defined in 3GPP TS 48.008 3.2.2.49 This resurrects change-id I4e656731b16621736c7a2f4e64d9ce63b1064e98 which was reverted in I9e0d405e303ed86d23703ca6362e958dddb2f861 due to gsm0808_test failing. The test failure is fixed by properly clearing the struct gsm48_multirate_cfg prior to running tests (add memset(0)). Change-Id: Ia782e21c206c15e840226d79b4209d13658ee916 Related: OS#3548
2018-09-16Revert "gsm0808: add function to convert amr gsm0408 setings to gsm0808"Neels Hofmeyr2-15/+0
This reverts commit 2fd4fe6aa109c8df50baac465f0393a303a64dd2. As shown in https://jenkins.osmocom.org/jenkins/view/master/job/master-libosmocore/475/a2=default,a3=default,arch=amd64,label=osmocom-master-debian9/console This commit breaks gsm0808_test with: stderr: --- expout 2018-09-16 22:37:31.382280438 +0200 +++ /n/s/dev/make/libosmocore/tests/testsuite.dir/at-groups/21/stdout 2018-09-16 22:37:31.426281372 +0200 @@ -78,9 +78,9 @@ Input: m4_75= 0 smod= 0 m5_15= 0 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 m6_70= 0 nscb= 0 - m7_40= 0 ver= 0 + m7_40= 0 ver= 6 m7_95= 0 m10_2= 0 m12_2= 0 @@ -92,9 +92,9 @@ Input: m4_75= 1 smod= 0 m5_15= 0 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 m6_70= 0 nscb= 0 - m7_40= 0 ver= 0 + m7_40= 0 ver= 6 m7_95= 0 m10_2= 0 m12_2= 0 @@ -106,9 +106,9 @@ Input: m4_75= 0 smod= 0 m5_15= 1 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 [...] Change-Id: I9e0d405e303ed86d23703ca6362e958dddb2f861
2018-09-14gsm0808: add function to convert amr gsm0408 setings to gsm0808Philipp Maier2-0/+15
Add a function to convert struct gsm48_multi_rate_conf, which holds the codec settings for AMR, to S0-S15 bit representation as defined in 3GPP TS 48.008 3.2.2.49 Change-Id: I4e656731b16621736c7a2f4e64d9ce63b1064e98 Related: OS#3548
2018-09-14gsm0808: fix wrong codec defaults for OFR_AMR_WBPhilipp Maier1-1/+1
3GPP TS 48.008 chapter 3.2.2.103 states that the configuration bits of OFR_AMR_WB are coded as follows: "S0, S2, S4 indicates the supported Codec Configurations. S1, S3, S5, S6, S7 are reserved and coded with zeroes." The current default setting of 0x3F violates this requirement. Lets set the "forbidden" settings zu zero and keep only the allowed ones. Change-Id: I4a481def59e9c98cfdcafc2b80c0ac7df0c14130
2018-09-13gsm0808: implement BSSMAP Classmark RequestNeels Hofmeyr1-0/+1
Related: OS#3043 Change-Id: I4a2e1d3923e33912579c4180aa1ff8e8f5abb7e7
2018-09-03Add RSPRO support to IPA and logging definitionsHarald Welte1-0/+1
Change-Id: Iee79f5273f32cb9ce4bd7a984e7f0625542e776f
2018-09-02Add CC_CAUSE value_string arrayKeith1-0/+4
Adds a value_string array for GSM 04.08 Call Control cause values Change-Id: I296f208581ce2550805f9d96e20f7319e1199023
2018-08-20use __FILE__, not __BASE_FILE__Neels Hofmeyr1-1/+1
The intention was to use the file's basename, but __BASE_FILE__ means "the root file that is being parsed and contains #include statements". If we had a function using __BASE_FILE__ and that was defined in an #included file, __BASE_FILE__ would indicate the first file where the #include is, and not the file where the function is defined. __BASE_FILE__ works for us because we don't ever include function definitions that log something, so __BASE_FILE__ always coincides with __FILE__ for our logging; but still __BASE_FILE__ is semantically the wrong constant. Related: OS#2740 Change-Id: Ibc1d3746f1876ac42d6b1faf0e5f83bd2283cdcc
2018-08-05libosmogsm: (re)introduce gsm48_push_l3hdr()Vadim Yanitskiy2-3/+8
There was gsm0480_l3hdr_push() declared in a header file, but not exposed in 'libosmogsm.map'. Furthermore, for some reason it was a part of GSM 04.80 API, what is not actually correct. Let's rename this symbol, and properly expose it as a part of the GSM 04.08 API. Also, let's introduce an auxiliary wrapper for messages, where the transaction identifier is required (see GSM 04.07, section 11.2.3.1.2). Change-Id: I8a045efe8335d83fcbe8d43eb180972e3b1d9dda
2018-08-01re-introduce ipa_ccm_idtag_parse_off()Harald Welte1-3/+2
In the previous commit we deprecated ipa_ccm_idtag_parse() but also removed ipa_ccm_idtag_parse_off(), for which I couldn't find any users. However, legacy openbsc.git still uses this function, so let's re-introiduce it in its original form. Change-Id: Ibfe53b04340eb355c8bfb8453a2af1522a4b6baf
2018-08-01Deprecate ipa_ccm_idtag_parse() with ipa_ccm_id_{get,resp}_parse()Harald Welte1-2/+8
In the past, the function ipa_ccm_idtag_parse() was used to parse the payload of IPA CCM ID RESP packets. However, the function was based on a possible misunderstanding of the message encoding, and callers actually counted the first (upper) length nibble as part of the header and passed a pointer to the second (lower) length nibble of the first TLV into this function. As such, it was unfixable, and had to be replaced with a new function called ipa_ccm_id_resp_parse(). At the same time, we also add ipa_ccm_id_get_parse() to parse the slightly different format of the IPA CCM ID GET payload. We can never be 100% sure what is "correct", as our understanding of the protocol is entirely based on protocol analysis, without any official documentation available. This patch also introduces unit test coverage for both of the new functions. Revert "ipa: Add libosmogsm.map entry for ipa_ccm_idtag_parse_off" This reverts commit 7f31c90b80c08fbfe2d84d70d397402fdb38b94c. Revert "ipa: Properly parse LV stream of a ID_GET request" This reverts commit f558ed4bb9c0f00997b8f97c2b251a574c1a64c4. It introduced a function/behavior that was not originally intended: The parse of IPA CCM ID GET (8bit length followed by 1 byte tag and variable-length payload) instead of the IPA CCM ID RESP (16bit length followed by 1 byte tag and variable-length payload). Change-Id: I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
2018-07-30oap_client: Rename symbols with osmo_ prefixHarald Welte1-14/+14
As we're moving this to a common/shared library now, we need to use the osmo_ namespace prefix for symbol names, struct/type names and constants. Change-Id: Ie36729996abd30b84d1c30a09f62ebc6a9794950
2018-07-30import oap_client into libosmogsmHarald Welte1-0/+82
This imports the code from osmo-msc 6afef893e17bce67e4d4119acd34d480ed03ba77 with minimal changes to make it compile. Symbol renaming to osmo_ prefix is done separately in a follow-up patch to have a as-clean-as-possible import first. Change-Id: I9bc38102318da02d1fe46ef516df3cfd6bf8e3da
2018-07-2904.80: New gsm0480_gen_{reject,return_error}() functionsHarald Welte1-0/+2
Add functions to generate TS 04.80 (supplementary services) Reject and ReturnError components. Change-Id: I6e5ee39c3d03364f7833ec717593d5ddb0a4c5f9
2018-07-29USSD: Introduce gsm0480_gen_ussd_resp_7bit()Harald Welte1-0/+1
Contrary to the existing gsm0480_create_ussd_resp(), the new function only generates the value part of the FACILITY IE, and not the IE Tag/Length or the 04.08 L3 header. This is needed in the context of GSUP-encapsulated USSD, as here we don't work with L3 messages, but only pass on the FACILITY IE value. Change-Id: Ide240279240322f643e142229eb7829f538c6314
2018-07-29gsm0480: Factor out msgb allocation helper functionHarald Welte1-0/+2
Change-Id: If25b467481023eadaaf3f78157eceff4b81d24d2
2018-07-12gsm0808: Add value_string for encryption algorithmsPau Espin Pedrol1-0/+1
Change-Id: Iadf6460c438d02c53c2eaa9e42d51844ad28859a
2018-07-12gsm_08_08: gsm0808_permitted_speech does not have value stringsPhilipp Maier1-0/+4
enum gsm0808_permitted_speech does not have any value strings. Lets add value strings to make debugging easier. Change-Id: I5b5612a5df2758b0137a34c17f7c8c2b3f07c806
2018-07-12gsm_04_08: add function to get value stringPhilipp Maier1-0/+2
The value string table gsm48_chan_mode_names[] lacks a function to get the value string by a value. Lets add one. Change-Id: I0757bcc278c140e18249e35864338e19cdaa3cf7
2018-06-18add and tweak inter-BSC HO APINeels Hofmeyr2-0/+42
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
2018-06-16gsm 04.80: Add value_string for component type and op codeHarald Welte1-0/+10
Change-Id: I2615a88db5224d65f37c7cc505e183ec8b196e8a
2018-06-16gsup: Add value_string for Session State IEHarald Welte1-0/+5
In Change-Id I1cee271fed0284a134ffed103c0d4bebbcfde2a8 we added support for a new session state IE, but we didn't add any value_string array for string conversion of it. Let's fix this. Change-Id: I3d9f087786dc37c42498fa9a2be07483ec93ba7b
2018-06-11gsup: Add osmo_gsup_get_err_msg_type() functionHarald Welte1-0/+1
This function can be used to resolve the error message type for a given message type. Can be used by generic error handlers that work for any incoming message type. Change-Id: Ic637bec53dd7fe3ec83da99b49b4eae34d5602b2
2018-06-11gsm/gsm0480: refactor and expose gsm0480_parse_facility_ie()Vadim Yanitskiy1-0/+2
This function can be used when there is only a part of GSM 04.80 message available - Facility IE, e.g. when a message is carried over GSUP/MAP. Let's expose it. Refactoring includes the following: - adding the 'gsm0480_' prefix; - correcting inverted return value; - cosmetic code style changes. Change-Id: I623c39ffbe6cdee65eade8435a2faa04d0da193e
2018-06-11gsm/gsm0480.c: introduce gsm0480_extract_ie_by_tag()Vadim Yanitskiy1-0/+2
In some cases, there is no need to parse the whole message, e.g. during the conversion from DTAP to GSUP/MAP. This function can be used to extract given IE from a message. Change-Id: I3989d061903352473305f80712f1a1560d05df3d
2018-06-07fix gsm0808_permitted_speech(): don't return HR3 for TCH_F + AMRNeels Hofmeyr1-1/+1
Change-Id: Icca23940791f97fa64dbc3f2734270b99f9550c1
2018-06-02tlv: Add TLVP_VAL_MINLEN() to obtain value _if_ length is >= minimumHarald Welte1-0/+10
This is a combination of TLVP_VAP() and TLVP_GET_MINLEN() Change-Id: Ic5a177941219ebc3a3bceb3f68bdb3b2cacb934b
2018-06-02gsm0808: Add value_string for LCLS related IEsHarald Welte1-0/+15
Change-Id: I18d7a29496929c761aeaba9c0aee847befc13108
2018-05-31GSUP: introduce new messages for SS/USSD payloadsVadim Yanitskiy1-0/+11
In order to be able to transfer SS/USSD messages via GSUP, this change introduces the following new message types: - OSMO_GSUP_MSGT_PROC_SS_*, and the following new IE: - OSMO_GSUP_SS_INFO_IE which represents an ASN.1 encoded MAP payload coming to/from the mobile station 'as is', without any transcoding. Change-Id: Ie17a78043a35fffbdd59e80fd2b2da39cce5e532 Related: OS#1597
2018-05-31GSUP: implement TCAP-like session managementVadim Yanitskiy1-0/+21
Unlike TCAP/MAP, GSUP is just a transport layer without the dialogue/context. This prevents us from having session based communication, required e.g. for USSD. But we can emulate TCAP dialogue by adding additional IEs, which would allow to relate each message to a particular session. This change introduces the following IEs: - OSMO_GSUP_SESSION_ID_IE, - OSMO_GSUP_SESSION_STATE_IE, which optionally can be used to indicate that the message is related to a session with given ID, and to manage session state, i.e. initiate, continue, and finish. Change-Id: I1cee271fed0284a134ffed103c0d4bebbcfde2a8 Related: OS#1597
2018-05-30gsm0808: Add encoding functions for LCLS BSSMAP messagesHarald Welte1-0/+5
Change-Id: Ib83143e467df068b7d462a8e51d94b9d961ce18f
2018-05-30gsm_08_08.h: Add enum for LCLS config, control and statusHarald Welte1-0/+28
Change-Id: I775aba59942fb6f34fb31b71d2f0f2ac5c3ae831
2018-05-28Add enum gsm48_progress_descKeith1-0/+12
From GSM 04.08 Section 10.5.4.21 / Table 10.5.127 Change-Id: I6574e8808aaf39fad8026290aa2cc657734e18b5
2018-05-27add gsm0808_create_handover_request_ack()Neels Hofmeyr1-0/+4
Related: OS#2283 (inter-BSC Handover, BSC side, MT) Change-Id: I692292a06c7d66004404560dc4ed933ca9107f9b
2018-05-27add support for gsm0808 HANDOVER REQUIRED messageNeels Hofmeyr2-0/+59
Related: OS#2283 (inter-BSC Handover, BSC side, MO) Change-Id: Idb6dc3eab0282158a17091d97ed77c1e2e3eb3c2
2018-05-27add gsm0808_cell_id_to_list()Neels Hofmeyr1-0/+1
The idea is to be able to add a gsm0808_cell_id to a gsm0808_cell_id_list2: first convert it to a list, then re-use gsm0808_cell_id_list_add(). It will be used by osmo-bsc to manage neighbor-BSS cell identifiers from VTY. Change-Id: Ibf746ac60b1b1e920baf494b396658a5ceabd788
2018-05-26Add enum gsm48_cause_coding from GSM 04.08 Section 10.5.4.11Keith1-0/+8
Change-Id: I3d9c8e117ad19f70a3273650d7c0f8280d7bdb9a
2018-05-24mncc: properly export osmo_mncc_name()Harald Welte1-0/+5
For some strange reason, the osmo_mncc_name() inline function was not in the mncc.h header, but in the mncc.c file. Let's fix that. Change-Id: I2c3666510c981dffa4ba25bed517fd7ebd1250f5
2018-05-15fix spellingThorsten Alteholz1-2/+2
Change-Id: I3ac92217f83279d5f987ab34eb18b2e6cb1c7812
2018-05-08add gsm0808 channel enum to IE val conversion functionsNeels Hofmeyr1-0/+107
Add: - gsm0808_current_channel_type_1() - gsm0808_permitted_speech() - gsm0808_chosen_channel() - gsm0808_channel_type_name() gsm0808_permitted_speech() is moved from osmo-bsc's bssap_speech_from_lchan(); gsm0808_chosen_channel() is moved from osmo-bsc's lchan_to_chosen_channel(); Rationale: will be re-used by inter-BSC handover, makes sense to keep with the other gsm0808 utils. Related: OS#2283 (inter-BSC handover, BSC side) Change-Id: I8a3cc5d4548e9a78d945d54c69ccced251edcec9
2018-05-07define a constant for the max length of called party BCD IEStefan Sperling1-0/+1
According to TS 24.008 10.5.4.7 the called party BSC number IE has a maximum length of 43 octets. This length is assumed inside osmo-hlr with a magic number: uint8_t msisdn_enc[43]; /* TODO use constant; TS 24.008 10.5.4.7 */ This change makes libosmocore provide a constant which osmo-hlr can use. Change-Id: Ia0bf6ceadcac38a8c75d166402b54058e5c6c6d4
2018-04-23gsm_08_58.h: introduce RSL_IE_ERIC_PAGING_GROUPAlexander Couzens1-0/+1
Ericsson supports a RSL command to page and immediate assign as single command. For paging a MS the BTS must know the paging group. Change-Id: I9194500e307ad69f8da07510bc965a7a5cd82a2a
2018-04-21gsm_08_58.h: Add Ericsson vendor-specific RSL message typesPau Espin Pedrol1-0/+5
We are alredy doing the same way for ip.access and siemens ones, and this way we avoid using the hardcoded value in osmo-bsc. Change-Id: I7cb65f3ff1cfdbe4eee97b7545bcd13a38c72e25
2018-04-18add gsm0808_cell_{id,id_list}_name() and friendsNeels Hofmeyr2-1/+13
Provide comprehensive API to obtain string representations of Cell Identifiers and -Lists. Change gsm0808_test.c to use the new functions (which simplifies the output a bit), so that we don't duplicate printing code in gsm0808_test.c, and so that the not-so-trivial printing code is also tested. In gsm0808_test, also test gsm0808_cell_id_list_name_buf()'s return value and truncation behavior. The rationale for gsm0808_cell_id_list_name(), i.e. printing an entire list of cell identifiers, is that even though the maximum is 127 elements, a list of more than a few elements is hardly ever expected in practice (even more than one element isn't actually expected: either "entire BSS" or a single LAC). It is thus useful to log the entire list when it shows up in Paging and Handover. Change-Id: I9b2106805422f96c5cc96ebb9178451355582df3
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