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* timer: Introduce osmo_clock_gettime to override clock_gettimePau Espin Pedrol2018-03-011-0/+6
| | | | Change-Id: I5bebc6e01fc9d238065bc2517058f0ba85620349
* gsm: add osmo_mnc_from_str(), osmo_mnc_cmp(), osmo_plmn_cmp() for 3-digit MNCNeels Hofmeyr2018-02-281-0/+5
| | | | | | | | | | | osmo_mnc_from_str() preserves leading zeros in the string and is useful for VTY config parsing (osmo-bsc, osmo-msc, osmo-sgsn, osmo-pcu). osmo_{plmn,mnc}_cmp() takes care of the slight intricacy of ignoring the 3-digit flag if the MNC is anyway >99. Will be used by osmo-sgsn.git and osmo-bsc.git. (All current users just care about identical MNC, but a proper cmp doesn't hurt.) Change-Id: Ib7176b1d65a03b76f41f94bc9d3293a8a07d24c6
* implement support for 3-digit MNC with leading zerosNeels Hofmeyr2018-02-283-1/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* core/logging.h: Add logging category for jitter bufferPau Espin Pedrol2018-02-271-1/+2
| | | | | | Forthcoming jitter buffer code in libosmo-netif will make use of it. Change-Id: I2434f9dfa401f736bc62a2ddce920e587cd8c517
* l1sap: Add fields for higher-precision timing offset valuesHarald Welte2018-02-271-2/+8
| | | | | | | | | | | | So far, we used quarter-bits across the L1SAP between the hardware/PHY specific part of OsmoBTS and the common part. In order to increase the resolution, let's add fields/members for 1/256th bit. In order to keep ABI and API compatibility, we use a union around the old and new values, so old code will still compile + work withe new libosmocore. Change-Id: Ibb58113c2819fe2d6d23ecbcfb8b3fce4055025d
* l1sap: Add RSSI, BER and quarter-bit accurate timing to PH-RACH.indHarald Welte2018-02-271-0/+4
| | | | | | | | Let's extend PH-RACH.ind with some useful data across the L1SAP boundary. Change-Id: I9439810c3a3ad89ea0302753617b850749af887c Related: OS#3003
* core: Add timespec helper macros and make timer_compat.h publicPau Espin Pedrol2018-02-272-1/+45
| | | | | | | | | | | If a monotonic clock must be used, then the clock_gettime API is used which uses timespec structures. Linux systems by default don't provide helpers to calculate time using timespecs, so let's add them here. Let's also make this header public so these helpers can be used in other projects using libosmocore (expected user: libosmo-netif). Change-Id: I45fc993b9bb0a343763238bf463c8640f47b00f1
* coding: Add BER-reporting RACH decode functionsHarald Welte2018-02-261-2/+8
| | | | | | | | | | | | For all other decode operations we report the BER, but not for the RACH. This results in osmo-bts-trx not being able to report BER to the higher layers, which is possible on other BTS backends. Let's close this gap by introducing gsm0503_rach_ext_decode_ber() and gsm0503_rach_decode_ber() with the usual n_errors / n_bits_total arguments. Change-Id: I2b1926a37bde860dcfeb0d613eb55a71271928c5
* rate_ctr: Add rate_ctr_inc2() as convenience wrapperHarald Welte2018-02-241-0/+9
| | | | | | | rate_ctr_inc2() is slightly easier to use than the old rate_ctr_inc() variant. Change-Id: Ie00706be201c32ec2981ea38b70354ed85e1aefd
* Revert "Add function to encode classmark"Harald Welte2018-02-221-1/+0
| | | | | | | | | | | This breaks all existing / older osmocom-bb builds, and hence cannot be accpeted. See also https://gerrit.osmocom.org/#/c/6679 Related: OS#2985 This reverts commit 3c38e60cd55814a7b4c34f22e0b2e6e671f883c4. Change-Id: Icfc52ca4e5cbe3a444d98037d27fa101e3614e06
* ports.h: Add VTY and CTRL ports for osmo-trxPau Espin Pedrol2018-02-222-0/+5
| | | | Change-Id: Ib79cdb62d45d8c78445c7b064e58eb7e9faeccf9
* fsm: allow graceful exit on FSM terminationPhilipp Maier2018-02-191-0/+2
| | | | | | | | | | | | | | | | The function _osmo_fsm_inst_term() terminates all child FSMs befor it calls fi->fsm_cleanup(). This prevents the cleanup callback to perform last actions on the child FSMs (e.g. osmo_fsm_inst_unlink_parent()). - Since moving the cleanup callack to the beginning of the function would alter the termination behavior and possibly cause malfunction in already existing implementation that use OSMO fsm, a new optional callback that is called immediately at the beginning of the terminatopn process is added. Change-Id: I0fdda9fe994753f975a658c0f3fb3615949cc8bb Closes: OS#2915
* fsm: Add a function to change the FSM instance ID laterDaniel Willmann2018-02-151-0/+2
| | | | | | | Sometimes we want to create an FSM instance before we know its name. In that case we should be able to update the id later. Change-Id: Ic216e5b11d4440f8e106a297714f4f06c1152945
* Add function to encode classmarkMax2018-02-151-0/+1
| | | | | | The code is based on Osmocom-BB implementation. Change-Id: I78f6968edaa3ed535673411fb2a80060a472290f
* Add generic Mobile Identity encoderMax2018-02-151-0/+1
| | | | | | | | Add generic function which allows caller to set Mobile Identity explicitly. This allows to use IMEI or IMEISV for example. Make gsm48_generate_mid_from_imsi() into wrapper around new function. Change-Id: Id79be7abfff75ecd0d248bbeed93e605abeec9b3
* gsmtap.h: define TETRA DMO mode channelsallesklar22018-02-141-0/+5
| | | | Change-Id: I98976c0ff16a69b2508a79259ed1aeaec51e7549
* Add helper functions for ACC bit flags in rach control IE.Stefan Sperling2018-02-131-2/+43
| | | | | | | | | | Add inline functions to manipulate and query ACC flag bits in the rach_control.t2 and rach_control.t3 octets. These function definitions also serve as documentation of the purpose of rach_control.t2/t3. Change-Id: I8f0a65c2980f86eb5c43f3bebe727f4d4d973163 Related: OS#2591
* Add GSM 04.08 type-of-number / numbering-plan-id definitionsHarald Welte2018-02-091-0/+22
| | | | Change-Id: Idd8d8a7a1c7f0b6cb9318e4f19ebadb415df2ed1
* osmo_msgbdump_{l2,l3}(): Proper typecastHarald Welte2018-02-091-2/+2
| | | | | | | | | | | | This avoids compiler warnings like /tmp/work/sysmobts_v2-poky-linux-gnueabi/osmo-pcu/0.4+gitAUTOINC+4c112dc5a6-r1.18/recipe-sysroot/usr/include/osmocom/core/msgb.h: In function 'const char* msgb_hexdump_l2(const msgb*)': error: invalid conversion from 'void*' to 'const unsigned char*' [-fpermissive] return osmo_hexdump(msgb_l2(msg), msgb_l2len(msg)); which we've been getting in osmo-pcu builds on some platforms. Change-Id: I0ec652a1a569ec1507d8411cf1ef87afabcca799
* msgb: Add msgb_hexdump_{l2,l3}() to dump l2 or l3 part of message bufferHarald Welte2018-02-091-0/+14
| | | | Change-Id: I98e85397fb541ee0fd711f2e1852f63f3bb87359
* GSUP: change osmo_gsup_encode() return typeMax2018-02-051-1/+1
| | | | | | | | | | * match return type of osmo_gsup_encode() with osmo_gsup_decode() to allow propagating error to caller * check return value of osmo_gsup_encode() in GSUP test * return errors instead of braking app with aseert Change-Id: Idaa1deecb6d9e15329bd51867b4f6a03357461f0 Related: OS#2864
* utils: add helper wrapper for osmo_strlcpy()Max2018-02-051-0/+3
| | | | | | | | | | Add wrapper for osmo_strlcpy() which uses sizeof() to automatically determine buffer's size and use it for GSMTAP logging. This is pretty common use case for osmo_strlcpy() so it's a good idea to save some typing by using generic define. Related: OS#2864 Change-Id: I03d0d3d32a8d572ad573d03c603e14cdc27a3f7b
* gsm48_hdr_msg_type(): SS is in the same group as MM/CCHarald Welte2018-02-031-1/+1
| | | | Change-Id: I1ddadeacced9650885f454b81f3f0df531ea1e5d
* gsm48_hdr_msg_type[_r99]: Fix bit-masksHarald Welte2018-02-031-2/+2
| | | | | | | | | | TS 24.007 is quite clear: The upper two bits of the message type octet are *not* part of the message type in any of the L3 protocols which implement sequence numbers. it doesn't matter if it's R98 or R99, or whether the sequence number is 1bit or 2bits wide. Related: OS#2908 Change-Id: Iec875a77f5458322dfbef174f5abfc0e8c09d464
* gsm_04_08.h: Reduce T310 default to 30s.Harald Welte2018-01-271-1/+1
| | | | | | | | | 3GPP doesn't specify a network-side T310 default, but waiting for 180s (3 minutes!) for the next message after CALL CONFIRMED is clearly way too long and will just use radio resources for no good reason. Change-Id: Ia52f9358bc86b23c72af9c80e2fff5cb0004b57a Related: OS#2884
* gsm_04_08.h: Clearly annotate timers that don't have a 3GPP Default valueHarald Welte2018-01-271-7/+7
| | | | Change-Id: I44fffaec1f7c0d819aa2ebc85e97f19581fc689c
* SMS: Add value_string for TS 04.11 CP and RP stateHarald Welte2018-01-242-0/+11
| | | | Change-Id: I1b2f6fc6f455b0ba2a5732c567a4867bca97c3b0
* fsm: add functions for unlinking and changing parentsPhilipp Maier2018-01-241-0/+4
| | | | | | | | | | | | | | At the moment it is not possible to unlink a child from from its parent, nor is it possible to assign a new parent to a child FSM. - osmo_fsm_inst_unlink_parent(): Make it possible to unlink childs from a parent. - osmo_fsm_inst_change_parent(): Make it possible to change the parent of a child. Change-Id: I6d18cbd4ada903cf3720b3ad2a89fc643085beef
* MNCC: Add MNCC to string dumperHarald Welte2018-01-191-0/+9
| | | | | | | | As MNCC is rather hard to debug (wireshark cannot trace UNIX domain sockets), let's add our own decoder that we can use from related debug log statements in the respective programs. Change-Id: I216aaf70868ba5f3860a60c4b2442957531a3011
* logging: allow to log only the basename of each sourceNeels Hofmeyr2018-01-191-0/+1
| | | | | | | | | | | In the C API, add another enum log_file_type value, and when set print only the basename of the source file path. Rationale: especially when not building directly in the source dir, the paths to the source files can become rather long. Usually, just the basename of the file is sufficient to identify the source line. Change-Id: If3e4d5fb2066f8bf86e59c82d1752b1a843cf58e
* logging: separate the '<000b>' subsys from filename loggingNeels Hofmeyr2018-01-191-1/+13
| | | | | | | | | | | | | | | | | | | Add a separate flag and API to switch the category-in-hex output: log_set_print_category_hex(). Add log_set_print_filename2() to modify only the print_filename flag. The old log_set_print_filename() function still affects both flags. Explain the rationale in the comment for log_set_print_filename(). There is no need to deprecate log_set_print_filename(); it might cause compiler warnings and break strict builds unnecessarily. Add VTY command 'logging print category-hex (0|1)'. Since there is no VTY command to switch filename output, nothing needs to be adjusted there (a command will be added in a subsequent patch). Change-Id: Iba03a2b7915853c6dccaf6c393c31405320538b4
* logging: add ability to log the log-level with API and vtyNeels Hofmeyr2018-01-171-0/+4
| | | | | | | | Log the log level string after the category name, if enabled. The default behavior remains unchanged. Change-Id: Ie6be365cfa6aeabdf115bff19bac198440c9adf1
* gsm0480: fix USSD OCTET STRING length confusionVadim Yanitskiy2018-01-171-2/+22
| | | | | | | | | | | | | | | | | | | | | | According to the GSM 04.80 (version 5.0.0) specification Annex A "Expanded ASN.1 Module "SS-Protocol", the maximum size of a USSD OCTET STRING is 160 bytes. Thus according to ETSI TS 123 038 (version 10.0.0) specification 6.1.2.3 "USSD packing of 7 bit characters", in 160 octets, it's possible to pack (160 * 8) / 7 = 182.8, that is 182 characters. The remaining 6 bits are set to zero. This change defines both mentioned values: - GSM0480_USSD_OCTET_STRING_LEN 160 - GSM0480_USSD_7BIT_STRING_LEN 182 keeping the old MAX_LEN_USSD_STRING 'as is' due to compatibility reasons. Now the new value is used for ss_request structure, while old one is still used for deprecated ussd_request structure. Change-Id: I6dead74f9ecea079752ff2400cdaf7c30187784e
* libosmocodec: implement ECU (Error Concealment Unit) for FRPhilipp Maier2018-01-152-0/+16
| | | | | | | | | | | When a bad GSM voice frame is received, it's being replaced by a silence frame. This may cause unpleasant audio effects. This change implements a functionality to craft a replacement frame from the last known good frame. Currently, only FR is supported, support for other codecs may be added latter. Change-Id: I06a21f60db01bfe1c2b838f93866fad1d53fdcd1
* Deprecate gsm48_construct_ra()Max2018-01-121-1/+1
| | | | | | | | It's just a tiny wrapper around gsm48_encode_ra() with less strict type signature. Related OS#1640 Change-Id: I79d6d1133afbf32e891a6b0e3a244c6885ea9614
* gsm: add gsm0808_speech_codec_type_namesNeels Hofmeyr2018-01-121-0/+5
| | | | | | | Used for logging Speech Codec List entries in osmo-bsc, during handover decision. Change-Id: Ie6418d16db333188e9bcd2b32b7216f277ae8832
* Add function to properly encode RAIMax2018-01-082-0/+2
| | | | | | | | | | | | | Add gsm48_encode_ra() which takes appropriate struct as [out] parameter instead of generic buffer. Using uint8_t buffer instead of proper struct type prooved to be error-prone - see Coverity CID57877, CID57876. Old gsm48_construct_ra() is made into tiny wrapper around new function. The test output is adjusted because of the change in function return value which was constant and hence ignored anyway. Related: OS#1640 Change-Id: I31f9605277f4945f207c2c44ff82e62399f8db74
* Fix incorrect spec referenceMax2018-01-041-1/+1
| | | | | | RAI is defined in 3GPP TS 24.008 § 10.5.5.15 Change-Id: I484485d8c4c56b58dfecc1193bcdd48e61957422
* logging vty: tweak general 'logging' command docNeels Hofmeyr2017-12-201-1/+1
| | | | | | 'logging' is not only for terminals, also for stderr and other log targets. Change-Id: If1ee59c7d1073502259b7d60008206ac3d8e87a3
* libosmocodec: add FR bit offset definitionsPhilipp Maier2017-12-202-0/+273
| | | | | | | | This change defines the GSM FR bit positions as described in RFC 3551, which will be used by further ECU (Error Correction Unit) implementation. Change-Id: I1d0a198af0f8dd1f690b5a81f5c9eb92c43aefed
* libosmocodec: add FR/HR/EFR frame length definitionsVadim Yanitskiy2017-12-201-0/+7
| | | | | | | | | There are some projects, such as OsmoBTS and OsmocomBB, which are dealing with raw TCH payloads, so they need to have the FR/HR/EFR frame length defined. At the moment, each project defines them itself. Let's share these definitions. Change-Id: Ib19dd1bf81712d034157f9ce061008be0000ef38
* ports: define proper VTY and CTRL ports for OsmoHNBGWNeels Hofmeyr2017-12-202-0/+3
| | | | | | | | | So far it uses 2323, a development default. Instead, assign new ports, appending to the common range of VTY and CTRL ports: 4261 and 4262. Related: https://osmocom.org/projects/cellular-infrastructure/wiki/Port_Numbers Related: I28bd7a97d24455f88fadc6724d45c3264ba2fce4 (osmo-gsm-manuals) Change-Id: Ife52a968a41cb286f640006587877971ff66c1a4
* add ctrl_cmd_parse2() to return parsing errorsNeels Hofmeyr2017-12-181-0/+1
| | | | | | | | | | | | | | | | | | | | | If a control command fails to parse, we so far discard specific error messages and instead send just "Command parser error". In ctrl_cmd_parse() we actually compose detailed error replies, but in the end simply talloc_free() them and return NULL. A first step to report these errors to the ctrl command issuer is to not return NULL and instead return the cmd with type = CTRL_TYPE_ERROR. Add ctrl_cmd_parse2() to return such instead of NULL. To stay API compatible, provide ctrl_cmd_parse2() to return a cmd on errors. ctrl_cmd_parse() retains identical behavior but becomes just a simple wrapper around ctrl_cmd_parse2() which discards the cmd on error. No need really to deprecate ctrl_cmd_parse() yet; especially as long as compiler warnings might break jenkins builds. Change-Id: I5047c9f977d70b03eea77cbcfd2b96d43ea46880
* ctrl: prep test: separate new ctrl_handle_msg() from handle_control_read()Neels Hofmeyr2017-12-181-0/+2
| | | | | | | | | | In order to allow unit testing the ctrl iface msgb handling, have a separate msgb entry point function from the actual fd read function. An upcoming patch will prove a memory leak in CTRL msgb handling by a unit test that needs this separation. Change-Id: Ie09e39db668b866eeb80399b82e7b04b8f5ad7c3
* utils: add osmo_escape_str()Neels Hofmeyr2017-12-181-0/+3
| | | | | | | | | | | | | To report invalid characters in identifiers, it is desirable to escape any weird characters. Otherwise we might print stray newlines or control characters in the log output. ctrl_test.c already uses a print_escaped() function, which will be replaced by osmo_escape_str() in a subsequent patch. control_cmd.c will use osmo_escape_str() to log invalid identifiers. Change-Id: Ic685eb63dead3967d01aaa4f1e9899e5461ca49a
* add osmo_auth_c3() (separate from gsm_milenage())Neels Hofmeyr2017-12-181-0/+2
| | | | | | | | | | | | | | | To send a Ciphering Mode Command, we may need to derive a Kc from UMTS AKA tokens. gsm_milenage() derives Kc from 3G tokens, but also derives an SRES. For SRES, it requires an OPC, which may need to be derived from OP first. All we need is a Kc, so we could feed a zero OPC ... but to simplify the function call for cases where just a Kc is required, separate the c3 function out from gsm_milenage(), as osmo_auth_c3(). Obviously call osmo_auth_c3() from gsm_milenage() (meaning that osmo-hlr's 55.205 derived auc tests still cover exactly that implementation). Prepares: If04e405426c55a81341747a9b450a69188525d5c (osmo-msc) Related: OS#2745 Change-Id: I85a1d6ae95ad9e5ce9524ef7fc06414848afc2aa
* utils: add osmo_separated_identifiers_valid()Neels Hofmeyr2017-12-171-0/+1
| | | | | | | | For validating CTRL input, we want to verify that an input variable is a series of valid osmo_identifier_valid() separated by dots. Allow validating any additional chars with identifiers, for CTRL vars will be just ".". Change-Id: I13dfd02c8c870620f937d789873ad84c6b1c45de
* logging vty: describe 'logging set-log-mask' command, add OSMO_STRINGIFY_VAL()Neels Hofmeyr2017-12-121-0/+2
| | | | Change-Id: I73ac5873ede858da44e1486d8a5c81da1ed5b19f
* Add functions for extended RACH codingMax2017-12-111-1/+6
| | | | | | | | | | | Add support for extended RACH (11 bit) according 3GPP TS 45.003 §5.3.2: * convolutional code with puncturing * encoding/decoding routines * corresponding tests Change-Id: I85a34a82d5cd39a594ee89d91a2338226066ab5d Related: OS#1548
* comment: utils: more accurately describe OSMO_STRINGIFY macroNeels Hofmeyr2017-12-101-1/+3
| | | | Change-Id: I7b057c026f9df90608b7cbd12481ab9e7a41d88c
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