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* 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
* counters: add osmo_counters_count() returns the amount of countersAlexander Couzens2017-12-051-0/+2
| | | | Change-Id: I9068231d71876e06d27ee67a688d7fb611ac3a1b
* logging: Extend the LOGPSRC macro to put cont in it as wellHolger Hans Peter Freyther2017-12-011-2/+18
| | | | | | | | For the lua console printing I need to print several values with continuation but also specify the filename. Add a "C" for continue and forward arguments. Change-Id: I1d6dcb2567b9ed2c8767f661737b979bc3d1377e
* gsmtap.h: Introduce new GSMTAP type for LTE NAS messagesHarald Welte2017-11-231-0/+1
| | | | Change-Id: I6e1274f17e2d9d2eee16481940642216ca96e3e3
* tlv_put: guard against NULL val and 0 lenNeels Hofmeyr2017-11-201-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | For example encode_auth_info() from gsup.c calls msgb_tlv_put(msg, iei, 0, NULL) to put a tag and len with content data following later. However, this would cause a memcpy() from a NULL pointer, in tlv_put(). Allow passing NULL and len = 0 for cases like the above: If val is NULL, use memset(0) instead of memcpy(). If len is zero, do not copy nor memset anything. Hence make tlv_put() behave in a well-defined and valid way for any and all input args; no negative fallout is possible from this patch. Add proper API doc comment. Fixes a sanitizer build failure in gsup_test: ../../../../src/libosmocore/include/osmocom/gsm/tlv.h:99:2: runtime error: null pointer passed as argument 2, which is declared to never be null Helps fix sanitizer build on debian 9. Change-Id: I13dce9cd1228817890d3e81edeeb660c893c1d64
* msgb: add inline msgb_queue_free()Neels Hofmeyr2017-11-201-0/+9
| | | | | Related: Iaad35f03e3bdfabf3ba82b16e563c0a5d1f03639 (libosmo-netif) Change-Id: Ia291832ca445d4071f0ed9a01730d945ff691cf7
* ports.h: Use same VTY port number for osmo-mgw and osmo-bsc_mgcpHarald Welte2017-11-201-1/+1
| | | | | | | | It was decided that osmo-mgw as direct successor of osmo-bsc_mgcp will use the same VTY port number (similar to osmo-nitb, osmo-bsc and osmo-bsc-sccplite all using the same VTY port number) Change-Id: Iec1da9f3b4d170416279f05876d9e1ae2970c577
* Fix/Update copyright notices; Add SPDX annotationHarald Welte2017-11-136-13/+18
| | | | | | | | 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
* vty: add port number for osmo-mgwPhilipp Maier2017-11-101-0/+1
| | | | Change-Id: Ied224fe94b5152fd19e259396fbc0eaf69be4b96
* vty: deprecate now empty node commandsNeels Hofmeyr2017-11-081-2/+2
| | | | | | | | | | | Following I5021c64a787b63314e0f2f1cba0b8fc7bff4f09b a deprecation of vty_install_default() and install_default() commands is indicated. However, compiler warnings may clutter build output or even fail strict builds, hence I am submitting the deprecation in a separate patch. Depends: I5021c64a787b63314e0f2f1cba0b8fc7bff4f09b Change-Id: Icf5d83f641e838cebcccc635a043e94ba352abff
* GPRS: constify NS printing routine parametersMax2017-10-241-1/+1
| | | | Change-Id: I549ab7c26ac1489e01f281594bafe44b0681dc83
* rate_ctr: Enforce counter (and ctr_group) names are valid identifiersHarald Welte2017-10-241-1/+1
| | | | | | | | | | | | | | As rate counters are automatically exposed on the CTRL interface, we need to make sure they don't contain special characters such as '.' which are not permitted/supported by CTRL. In order to be able to run old versions of osmocom programs with libosmocore versions after this commit, we introduce some special name mangling: Any '.' in the names are replaced with ':' during counter group registration, if valid identifiers can be obtained this way. Change-Id: Ifc6ac824f5dae9a848bb4a5d067c64a69eb40b56
* Introduce osmo_identifier_valid() function to check validity of identifierHarald Welte2017-10-241-0/+3
| | | | | | | | | We define the notion of an 'osmocom identifier' which is basically a 7-bit US-ASCII without any special characters beyond "-_:@". We introduce a function to verify if an identifier consists only of the permitted characters. Change-Id: I96a8d345c5a69238a12d040f39b70c485a5c421c
* GPRS: clarify ip/frgre union useMax2017-10-241-0/+2
| | | | | | | | | * add comment about underlying assumption that structs in ip/frgre union members in gprs_nsvc struct have the same memory layout * remove such assumption from gprs_ns_ll_str() * use gprs_ns_ll_str() for NSE dump Change-Id: Idcb912b7b3f7460fd2b058e16650c0bde8f757ee
* GPRS: unify NS state printingMax2017-10-241-0/+4
| | | | | | | | | * introduce defines with NS state names * use them for vty and tests * expand test output to print complete NS state Change-Id: I69f8d536135ae76dbca623c2f1ffba625adcb1e9 Related: SYS#3610
* add osmo_talloc_asprintf() and ctrl_cmd_reply_printf()Neels Hofmeyr2017-10-242-0/+21
| | | | | | | | | | | | | | | | Add macro to append to a CTRL commands' reply string, ctrl_cmd_reply_printf(). The talloc_asprintf() part of it is generic enough to qualify for a separate macro, osmo_talloc_asprintf(). The idea is to not have to decide for each bit added to a string whether the string is already allocated or not, but simply be able to issue printf commands and let the macro worry about initial allocation or reallocation. This originally came from osmo-hlr change I1bd62ae0d4eefde7e1517db15a2155640a1bab58, where it was requested to move this bit to libosmocore. Change-Id: Ic9dba0e4a1eb5a7dc3cee2f181b9024ed4fc7005
* gb: optionally allow nsip packets only from a specific hostPhilipp Maier2017-10-241-0/+2
| | | | | | | | | | | | | | When listening for nsip connections is enabled, then every remote host may send packets. This is useful for an SGSN that serves multiple PCUs, but contraproductive for a PCU that awaits packets from a single SGSN. Add struct members remote_ip, and remote_port to struct gprs_ns_inst, when set, then the listening end uses connect() to ensure that only the expected host may send packets. Related: OS#2401 Change-Id: Ifeb201d9006eec275a46708007ff342cdfc14e45
* Replace bitvec_set_uint() with bitvec_set_u64()Max2017-10-241-0/+2
| | | | | | | | | | | | | | | | | | | Old bitvec_set_uint() uses "unsigned int" as input parameter which length is not guaranteed. It does not allow to specify which bit_value to set and does not check for incorrect length. Overall this makes it harder to re-use and more error-prone. Let's replace it with extended implementation which uses fixed type length parameters and extra checks. The additional parameter allows caller to explicitly indicate the need to use L/H instead of 0/1 for bit vector elements. It's necessary to properly encode some of the messages from 3GPP TS 44.018, for example §10.5.2.16 IA Rest Octets. The old function is left for backward compatibility as a tiny wrapper around new function and will be deprecated in follow-up patches. Change-Id: I1b670dacb55fb3063271d045f9faa10fccba10a6 Related: OS#1526
* ctrl: allow more nodes than those in enum ctrl_node_typeNeels Hofmeyr2017-10-231-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | Add ctrl_interface_setup_dynip2() to add a node_count parameter, which can be used to define more ctrl nodes without having to merge a patch to libosmocore. In consequence, also add ctrl_handle_alloc2(), since ctrl_interface_setup_dynip() uses ctrl_handle_alloc() to allocate the node slots, and add node_count param to static ctrl_init(). Passing zero as node_count indicates to use the default of _LAST_CTRL_NODE as before, i.e. to not define more ctrl nodes. Assert that we never allocate less than _LAST_CTRL_NODE slots. The current ctrl_interface_setup_dynip() and ctrl_handle_alloc() become simple wrappers that pass zero as node_count. Their use is still valid and they do not need to be deprecated. The API comment to ctrl_interface_setup_dynip2() explains how to define more node IDs. This patch was verified to work by osmo-hlr.git change I98ee6a06b3aa6a67adb868e0b63b0e04eb42eb50 which adds two node IDs for use by osmo-hlr only. Change-Id: I1bd62ae0d4eefde7e1517db15a2155640a1bab58
* abis_nm: Add abis_nm_admin_name() APIPau Espin Pedrol2017-10-231-0/+7
| | | | | | | | | Similar APIs exist for opstate and availability status. This patch does not break backward compatibility because osmo-bsc still requires direct use of the structure in get_string_value(). Change-Id: Ieace734aaff3f07606113feddde65b75202d96d6
* socket: add function osmo_sock_local_ip() to query local ipPhilipp Maier2017-10-231-0/+2
| | | | | | | | | | In some cases it is required to know the ip-address of the interface through that a given remote IP-Address can be reached. Add function osmo_sock_local_ip() to determine the local ip-address for a given remote ip-address Change-Id: I2988cc52b196fc8476703d1287e24cb4a48491c2
* add function msgb_printf() to print formatted text into msg bufPhilipp Maier2017-10-221-0/+1
| | | | | | | | | | | In ASCII string based protocols it a printf() version that prints directly to the message buffer may be useful. Add function msgb_printf(), make sure that msg buffer bounderies are not exceeded. If the end of the tail buffer is hit, return with an error code. Change-Id: I15e1af68616309555d0ed9ac5da027c9833d42e3
* api doc: fix two doxygen group closing bracesNeels Hofmeyr2017-10-172-2/+2
| | | | Change-Id: I6c1f47d13c5b7a9cb2281de9f017df4f1ed88ba7
* [doc] Properly define gsm0800 group and move all related files into itHarald Welte2017-10-172-2/+10
| | | | Change-Id: I91920c69c86d6a1932172becacb76faff2d3eb1e
* [doc] Properly define 'oap' group and add introductory textHarald Welte2017-10-171-2/+11
| | | | Change-Id: I1e875991ae1dd93862f850f85d40b3dac61ece72
* [doc] Define 'gsup' group with proper name, add intro textHarald Welte2017-10-171-2/+19
| | | | Change-Id: Ieee6213dc5aad082a2d439c7418b51f281b80b1a
* [doc] make sure all SMS related code is part of the 'sms' groupHarald Welte2017-10-174-4/+20
| | | | Change-Id: I24c56ccb56d5b39cfb887808f91b715da54c0f8b
* [doc] gea has separate group; A5 is not part of crypto but a5 groupHarald Welte2017-10-172-4/+7
| | | | Change-Id: I2fd24c86f9b52244073ec800a3287e3d38e660d9
* [doc] Provide proper name for 'auth' groupHarald Welte2017-10-171-1/+1
| | | | Change-Id: I5fb1c34475ea9db36c2ec5cddc988074a72a35f7
* [doc] TLV parser has far grown beyond GSM L3Harald Welte2017-10-161-1/+1
| | | | | | Let's hence not call the group "GSM L3 compatible TLV parser" Change-Id: Ic53f9c0d5ee787f994f42cf2aff313c6e131fbe6
* [doc] Rename "RSL" to "A-bis RSL" in documentation.Harald Welte2017-10-161-1/+1
| | | | | | | We also have "A-bis OML" and it's a bit odd to have one with prefix and the other without. Change-Id: Ida325f8a9c40b40c1aeaa4edfd1123ced7cc92b8
* [doc] Expand Doxuygen documentation for osmo_primHarald Welte2017-10-161-4/+23
| | | | | | Also, make sure prim.c is actually part of the 'prim' module. Change-Id: I4363e46a5f606eb2114a9cc1d2086007eaa58d31
* [doc] Put CRC-16 and generic CRC code in one Doxygen moduleHarald Welte2017-10-163-8/+14
| | | | | | .. and add missing API documentation bits Change-Id: I67119894bcbf8c779426a0272bae4c5ce1fbd1ed
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