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* Add function to encode classmarkMax2018-02-152-0/+17
| | | | | | The code is based on Osmocom-BB implementation. Change-Id: I78f6968edaa3ed535673411fb2a80060a472290f
* Add generic Mobile Identity encoderMax2018-02-152-14/+18
| | | | | | | | 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
* talloc_ctx_vty: Fix help strings (missing \n at end of line)Harald Welte2018-02-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | This was causing build failures in applications using this library feature: Documentation error (missing docs): <command id='show talloc-context (application|all) (full|brief|DEPTH) tree ADDRESS'> <param name='ADDRESS' doc='(null)' /> Documentation error (missing docs): <command id='show talloc-context (application|all) (full|brief|DEPTH) filter REGEXP'> <param name='REGEXP' doc='(null)' /> Documentation error (missing docs): <command id='show talloc-context (application|all) (full|brief|DEPTH) tree ADDRESS'> <param name='ADDRESS' doc='(null)' /> Documentation error (missing docs): <command id='show talloc-context (application|all) (full|brief|DEPTH) filter REGEXP'> <param name='REGEXP' doc='(null)' /> Change-Id: I785c852e3313d20eade79746a7cd485d2d5908ea
* Revert "fsm: do not terminate child FSMs early"Harald Welte2018-02-091-4/+3
| | | | | | | | This reverts commit 5ec91980ac2224aa1e9bf070a0e382d0d8c2b729. More or less like I expected, it creates fall-out. osmo-msc master builds are failing, as are the open build service builds. The patch has therefor *not* been sufficiently tested. Change-Id: I8d961d7bbd91b6a8d7691f24cb67720c3d001c7e
* fsm: do not terminate child FSMs earlyPhilipp Maier2018-02-091-3/+4
| | | | | | | | | | | | The function _osmo_fsm_inst_term() terminates all child FSMs befor it calls fi->fsm_cleanup(). This prevnts the cleanup callback to perform last actions on the child FSMs (e.g. osmo_fsm_inst_unlink_parent()). move the function call to _osmo_fsm_inst_term_children() below the call to fi->fsm->cleanup(). Change-Id: Ie89d435417306c6bf897274eabc3ed0a46485c26
* tlv_parser: Report *first* occurrence of repeated IEsHarald Welte2018-02-091-2/+7
| | | | | | | | | | Most GSM related specifications require the receiver to use the *first* occurrence of repeated IEs. The Osmocom TLV parser so far did the opposite: It reported only the *last* occurrence in case of repeated IEs. Let's change our implementation to be more in-line with relevant specs, such as 3GPP TS 24.008 8.6.3. Change-Id: Icde09e075f68c842a7a96cf7160c8e44b77cf82d
* vty: fix 'logging print file' outputNeels Hofmeyr2018-02-061-8/+11
| | | | | | | | | | | | | | In If1bd79026a3c680ccf7587d545d12f7759a998fc, an erratic logging output crept in for an earlier patch state and was merged by accident; fix 'logging print file (0|1|basename)' output. Add value string to map LOG_FILENAME_* enum to VTY args, use for both command evaluation as well as printing the vty config. The default is 'logging print file 1', hence we could omit an output when '1' is chosen. But for clarity, always output the current setting. Change-Id: I1c931bff1f1723aa82bead9dfe548e4cc5b685e0
* GSUP: change osmo_gsup_encode() return typeMax2018-02-051-4/+9
| | | | | | | | | | * 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()Max2018-02-051-4/+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
* SMS: Add value_string for TS 04.11 CP and RP stateHarald Welte2018-01-243-0/+16
| | | | Change-Id: I1b2f6fc6f455b0ba2a5732c567a4867bca97c3b0
* gsm48_pdisc_names: Use conscise, short namesHarald Welte2018-01-241-15/+15
| | | | | | | Some times I *really* regret ever having merged OSMO_VALUE_STRING, as it generates completely unusable and way too long strings :( Change-Id: I8de7c01f9ea1d66c384e57449c4140186f5ce6c5
* fsm: add functions for unlinking and changing parentsPhilipp Maier2018-01-241-3/+34
| | | | | | | | | | | | | | 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
* libosmocoding: use frame length definitions from codec.hVadim Yanitskiy2018-01-241-7/+0
| | | | | | | | Since commit e094157e125a70b9a384ba3cec01261624f4eb59, TCH frame length definitions were added to libosmocodec. No need to define them again. Change-Id: Id8c6132534e36ea1e368432bb259fd4f3a531f90
* libosmocoding: fix typo in library documentationVadim Yanitskiy2018-01-231-1/+1
| | | | Change-Id: I535d4eba5bad9094a1e9e662f32cd2bfac5b0cef
* socket: use inet_ntop() instead of inet_ntoa() in osmo_sock_local_ip()Philipp Maier2018-01-221-2/+2
| | | | | | | | | | | | | | | The function inet_ntoa() stores its result in a static buffer and returns the pointer. When inet_ntoa() is called subsequently it overwrite the content of its static buffer with the new result. Since we osmo_sock_local_ip() is a library function we should use the more safe variant inet_ntop() in order to prevent unintentionally overwriting data that the caller might still need. Such an error would be hard to find. - Use the more safe inet_ntop() inestead of inet_ntoa() Change-Id: I9852b57736432032542bd96b6fdd4a2f08fc1f64
* socket: fix socket leak in osmo_sock_local_ip()Philipp Maier2018-01-221-0/+1
| | | | | | | | | The socket that is opend to probe the correct local ip-address is not closed when the test is done. - Close socket when it is not needed anymore Change-Id: I7f3562a344b58f6298d2068314be1626a96e1b1d
* MNCC: Add MNCC to string dumperHarald Welte2018-01-193-1/+420
| | | | | | | | 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 vty: add 'logging print file (0|1|basename)' cmdNeels Hofmeyr2018-01-191-0/+27
| | | | | | | Add a VTY command that allows configuring the output of source filename. So far, this was not configurable by VTY at all. Change-Id: If1bd79026a3c680ccf7587d545d12f7759a998fc
* logging: allow to log only the basename of each sourceNeels Hofmeyr2018-01-191-0/+14
| | | | | | | | | | | 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 Hofmeyr2018-01-192-6/+61
| | | | | | | | | | | | | | | | | | | 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
* cosmetic: logging: if color is disabled, don't print ""Neels Hofmeyr2018-01-171-5/+6
| | | | | | | | | | | | If color output is disabled, skip the empty snprintf() to (not) clear the ANSI color. Also, no need to use a format string of "%s", just pass the string constant directly. That is a micro optimisation as well as clarification of the code. Change-Id: Ie7cb06de160830d2f8ee5718246c0fe311f68d49
* fsm: fix double llist_del in osmo_fsm_inst_term()Philipp Maier2018-01-171-2/+3
| | | | | | | | | | | llist_del(&fi->proc.child) is executed always, regardless whether a parent is configured or not. This may lead into a double llist_del when the child has been previously unlinked. - check if fi->proc.parent is set, and only then execute llist_del(&fi->proc.child); Change-Id: I4b33d508c8a11b72fbf30125088a882894d9e6ac
* fix -Werror build: logging.c: always use literal with snprintfNeels Hofmeyr2018-01-171-1/+1
| | | | | | | | | | | | | | | | | | A recent commit added an snprintf that passes a pointer to a literal directly to snprintf. Since passing pointers to printf formats is a vulnerability in case user supplied data may be passed in the format, modern compilers warn against that, which breaks our -Werror builds. Even though this is just a pointer to a literal, it needs to be an actual literal to make compilers happy. Use printf("%s", c) instead of printf(c). Note that our current build slave's gcc does not enforce that yet, while newer compilers do. logging.c:338:4: warning: format not a string literal and no format arguments [-Wformat-security] ret = snprintf(buf + offset, rem, c_subsys); Change-Id: Ifa4eb8a9fab66dcd987986065351b4a06421f1ec
* logging: color the log category according to levelNeels Hofmeyr2018-01-171-1/+5
| | | | | | | | | | | | | | When log_set_use_color() is enabled, color the log category string according to the log level. The log line before and after the log category is printed in the category's configured color. ERROR and FATAL are red, NOTICE is yellow, INFO is green and DEBUG is blue. The default behavior remains unchanged; If color is enabled, the category string will now always be colored in the log level color, not the log category color, and will stand out from the rest of the line. Change-Id: I84f886ac880e9056a666bbb231ae06cbaaf65f44
* logging: color the log levelNeels Hofmeyr2018-01-171-4/+26
| | | | | | | | | | | | When log_set_use_color() is enabled, color the log level string according to the log level. The log line before and after the log level is printed in the category's color. ERROR and FATAL are red, NOTICE is yellow, INFO is green and DEBUG is blue. The default behavior remains unchanged. Change-Id: If2e52ae9ab83e538e04321c338e3fdffb2c7f9d3
* logging: add ability to log the log-level with API and vtyNeels Hofmeyr2018-01-172-0/+38
| | | | | | | | Log the log level string after the category name, if enabled. The default behavior remains unchanged. Change-Id: Ie6be365cfa6aeabdf115bff19bac198440c9adf1
* gsm0480: parse optional IEs for RELEASE COMPLETE messageVadim Yanitskiy2018-01-171-1/+5
| | | | | | | | According to GSM 04.80 section 2.5 "Release complete", a message of the mentioned type may contain optional IEs, such as Cause and Facility. Let's parse them. Change-Id: Ib8fc1f6bae472b0b264b6158f372b6cce255b222
* gsm0480: parse all SS info elements in a messageVadim Yanitskiy2018-01-171-1/+10
| | | | | | | Some SS messages (e.g. RELEASE COMPLETE) may contai multiple IEs (Information Elements). Let's parse them all. Change-Id: I20cc59c25fdbda176bcf76437174cda829518d60
* gsm0480: correct parse_ss_info_elements() declarationVadim Yanitskiy2018-01-171-1/+1
| | | | Change-Id: I64df293188908c7eb10a61941db76656340d3a8e
* gsm0480: refactor gsm0480_decode_ss_requestVadim Yanitskiy2018-01-171-7/+14
| | | | Change-Id: Iba734db97ab516f8fce816c4e4225b97b93619f1
* gsm0480: move SS request length check to parse_ss()Vadim Yanitskiy2018-01-171-12/+11
| | | | Change-Id: I8e7ce5bd97f3a8731924264c92afb9a7183937dc
* gsm0480: pass exact GSM 04.80 payload length to parse_ss()Vadim Yanitskiy2018-01-171-4/+4
| | | | Change-Id: I9608d4ad16d7581320615c140beaac36628c31a4
* gsm0480: add specification reference to SS message typeVadim Yanitskiy2018-01-171-0/+1
| | | | Change-Id: Iff0210e995053e270939a774db33f55b22545204
* gsm0480: handle GSM0480_OP_CODE_PROCESS_USS_DATAVadim Yanitskiy2018-01-171-0/+5
| | | | Change-Id: I470290c2b544555e53cedd849b1d6a961db7b5a4
* gsm0480: handle USS_NOTIFY and USS_REQUEST with PROCESS_USS_REQVadim Yanitskiy2018-01-171-0/+2
| | | | Change-Id: If7cc6a966dfc17d37e22338ecc1f239f908a9f2e
* gsm0480: handle GSM0480_CTYPE_RETURN_RESULTVadim Yanitskiy2018-01-171-0/+82
| | | | Change-Id: I8fb2856acbbf4c53e7d53200a37bc8f79e763bcf
* gsm0480: parse GSM0480_MTYPE_FACILITY separatelyVadim Yanitskiy2018-01-171-1/+17
| | | | Change-Id: I6e029c436a50fa8c2823ea39c5d123ee701becfa
* gsm0480: handle UnstructuredSS Request with DSC != 0x0FVadim Yanitskiy2018-01-171-0/+20
| | | | | | | | | | | According to GSM 04.08, 4.4.2 "ASN.1 data types": the USSD-DataCodingScheme shall indicate use of the default alphabet using the 0x0F value. Previously, the UnstructuredSS Request messages with not default alphabet were not being handled. Let's fix this. Change-Id: I73d602f6f20b0afe7600d16bbd432069ae7be788
* gsm0480: clean up the parse_process_uss_req() codeVadim Yanitskiy2018-01-171-19/+20
| | | | | | This change reduces the degree of code nesting... Change-Id: I467f75794c5ac9df75c001245b18bbdfcfaadd88
* gsm0480: fix USSD OCTET STRING length confusionVadim Yanitskiy2018-01-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | 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
* gsm0480: skip length check for 'RELEASE COMPLETE' messageSergey Kostanbaev2018-01-171-3/+10
| | | | | | | | According to GSM 04.80 Section 2.5 'Release complete' Table 2.5, the 'RELEASE COMPLETE' message payload is optional, so let's drop the length check in gsm0480_decode_ss_request() for this type. Change-Id: I63b7f8ce403169a9dbdbdb031db16693de2196d6
* Log lapd_datalink state on errorsMax2018-01-161-5/+5
| | | | | | | It's not very useful to get just the raw pointer address in case of lapd_datalink receive error. Log it's state in addition. Change-Id: Ie8c5df262312f886f509113f2707e36811df3bd5
* libosmocodec: implement ECU (Error Concealment Unit) for FRPhilipp Maier2018-01-152-1/+166
| | | | | | | | | | | 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
* logging-gsmtap: send only basename of source fileNeels Hofmeyr2018-01-121-0/+5
| | | | | | | | | | | GSMTAP doesn't have a lot of space for the source file name. It is better to send only the basename of the file, because only the first bit of a long path may not convey the source file at all, needing guess work from the line number. Before: "Source File Name: ../../../../src/libosmocore/src" After: "Source File Name: telnet_interface.c" Change-Id: Ie8fc9e782bcf8fa6e2e957d02e7d73c3a7c2bca8
* Allow multiple 'log gsmtap' sinksMax2018-01-121-2/+9
| | | | | | | | Previously we've checked for existing log target with a given hostname from vty code but it was ignored inside the check so only the very first 'log gsmtap' entry was enabled while the rest were silently ignored. Change-Id: I8fd8bda9e07d403a54735da30addb742e56538a2
* log: print loginfo assertions sourceMax2018-01-121-8/+8
| | | | | | | Print which function has triggered assert_loginfo(). It's handy in debugging logging-related issues in libosmocore. Change-Id: I8418d0c431106f50aa8779cd89396f02373304ad
* TLVP_PRESENT() should not return TRUE after tlv_parse() fails.Stefan Sperling2018-01-121-4/+10
| | | | | | | | | | | | If the length provided in the patcket exceeds the buffer length, tlv_parse() returns -2 but leaves tlv.val and tlv.len initializd. Many callers of tlv_parse() do not check its return value, but rely on TLVP_PRESENT() to see if a particular TLV was parsed successfully. By clearing tlv.val and tlv.len we make it less likely that those callers will use an overlong TLV length value. Change-Id: I4dda6938e1650b4bcaac45809a4763f86f5a9794
* gsm: add gsm0808_speech_codec_type_namesNeels Hofmeyr2018-01-122-0/+15
| | | | | | | Used for logging Speech Codec List entries in osmo-bsc, during handover decision. Change-Id: Ie6418d16db333188e9bcd2b32b7216f277ae8832
* Use existing function for TLLI encodingMax2018-01-082-15/+5
| | | | | | Use bssgp_msgb_tlli_put() instead of copy-pasted code. Change-Id: I06d60566a19dcae701f8648c19fbd8db6d586f77
* Add function to properly encode RAIMax2018-01-085-46/+44
| | | | | | | | | | | | | 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
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