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* cosmetic: flatten ctrl_handle_msg()Neels Hofmeyr2018-04-051-17/+19
| | | | Change-Id: I3a711f5c974b7f56e27b333d390d1a706fb57007
* ctrl: fix deferred commands (and hence fix osmo-bts-sysmo 'clock-info' cmd)Neels Hofmeyr2018-04-055-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CTRL interface has a ctrl_cmd_def_* API that allows deferring a CTRL command reply until later. However, the command handling currently fails to acknowledge this and deallocates the struct ctrl_cmd anyway. Fix: in struct ctrl_cmd, add a defer pointer to be populated by ctrl_cmd_def_make(). A cmd thus marked as deferred is not deallocated at the end of command handling. This fix needs no change in calling code. (Another idea was to return a different code than CTRL_CMD_HANDLED when the command is to be deferred, but that would require adjusting each user of ctrl_cmd_def_make(). The implicit marking is safer and easier.) Show that handling deferred commands is fixed by adjusting the expectations of ctrl_test.c's test_deferred_cmd() and removing the now obsolete exit_early label. One symptom of the breakage is that osmo-bts-sysmo crashes when asked to report a trx's clock-info, which is aggravated by the fact that the sysmobts-mgr does ask osmo-bts-sysmo for a clock-info. The crash appears since Id583b413f8b8bd16e5cf92a8a9e8663903646381 -- it looked like just fixing an obvious memory leak, which it did as shown by the unit test, but deferred ctrl commands actually relied on that leak. Both fixed now. Related: OS#3120 Change-Id: I24232be7dcf7be79f4def91ddc8b8f8005b56318
* ctrl: test deferred cmd, show current failureNeels Hofmeyr2018-04-052-0/+108
| | | | | | | | | | | | Handling a deferred command currently deallocates the struct ctrl_cmd upon exiting the initial command handling, while it should actually stay around for the asynchronous/deferred handling of the ctrl command. Show the current bug by means of a ctrl test. The test will be adjusted to expect the correct result when the bug is fixed in a subsequent commit (I24232be7dcf7be79f4def91ddc8b8f8005b56318). Change-Id: Ibbc847fc583bdd8e5e53a008258805e634ea12b4
* gsm0480: drop messages with incorrect data lengthVadim Yanitskiy2018-04-041-9/+12
| | | | | | | | | | If either an INVOKE, either a RETURN_RESULT component has the data with incorrect length (see Annex A, 3GPP TS 04.80), the whole message is probably incorrect. Let's drop such messages instead of silent truncation. Change-Id: I2a169b0b84aa26ea2521edd55ff005c27ae6d808
* gsm0480: copy the raw USSD data, its DCS and lengthVadim Yanitskiy2018-04-043-10/+32
| | | | | | | | | | | | | | | | | | As it was already documented before, the 'ss_request' struct has a rudiment of deprecated 'ussd_request' struct - the 'ussd_text' field. It represents the data either of an INVOKE component, either of a RETURN_RESULT component, encoded as ASCII in case if DCS is 0x0f (i.e. decoded by the code itself), otherwise raw bytes 'as is'. Previously, there was no possibility to distinguish between ASCII and raw bytes with different DCS. Moreover, the payload decoding is not desired in some cases. Let's introduce the new fields, which will carry the raw unmodified payload, its length and DCS (Data Coding Scheme). Change-Id: Ia193d175021e145bb3b131290231f307dbefc64a
* gsm0480: document the 'ss_request' structureVadim Yanitskiy2018-04-041-0/+31
| | | | Change-Id: I22144dd759e0c1bb1965574b7ddd676606e5d6b7
* gsm0808: Add value strings for BSSMAP cause codesPhilipp Maier2018-03-293-0/+75
| | | | | | | | | | libosmocore has no value strings for BSSMAP cause codes yet. - Add value strings for BSSMAP cause codes and a function to retrieve them Change-Id: I313dd8d7b06374e1e35ddc18b7a42562d9e25d45 Related: OS#1609
* fix logging talloc ctx: add osmo_init_logging2()Neels Hofmeyr2018-03-282-2/+11
| | | | | | | | | | | | | | | Deprecate osmo_init_logging() for the benefit of adding an explicit talloc context argument to new function osmo_init_logging2(). Pass a ctx to log_init() instead of hardcoded NULL. Before now, *all* of our code uses a NULL ctx for logging, which amounts to talloc "leaks" hit by address sanitizer builds on newer gcc (e.g. gcc 7.3.0 on debian 9). This commit helps fixing "leaks" detected in e.g. osmo-bsc unit tests by a sanitize build with gcc (Debian 7.3.0-12) 7.3.0. Change-Id: I216837780e9405fdaec8059c63d10699c695b360
* vty/command.c: write_config_file(): sanely compose temp pathNeels Hofmeyr2018-03-281-1/+11
| | | | | | | | | | | | | | | Fix GCC version 7.3.0 (Debian 7.3.0-12) compiler warning: ../../../../src/libosmocore/src/vty/command.c: In function ‘write_config_file’: ../../../../src/libosmocore/src/vty/command.c:2741:2: error: null destination pointer [-Werror=format-overflow=] sprintf(config_file_tmp, "%s.XXXXXX", config_file); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Check agains NULL after each _talloc_zero() in write_config_file(). While at it, add a comment explaining why we don't use talloc_asprintf() instead. Change-Id: I7bdc52afe724c1d21f419fe49a6e2ebca9420969
* VTY: Don't welcome the user to the "control" interface, if it's VTYHarald Welte2018-03-271-1/+1
| | | | | | | This is quite confusing, I'm surprised that it has not been flagged before... Change-Id: I3dc07290579949891e481675d493e5a2ea6d0aed
* contrib/fsm-to-dot: warn about identically named FSMsNeels Hofmeyr2018-03-261-2/+19
| | | | | | | | FSMs with identical names confuse the script, so at least warn about them. IMHO we should also have different names for each FSM, so not bothering to make the script safe against identical naming. Change-Id: I4fe7e85d2fdf23e2ba964f3b47be1954edc63cef
* contrib/fsm-to-dot: mark illegal states in redNeels Hofmeyr2018-03-261-5/+29
| | | | | | | If an FSM transitions to a state that actually belongs to a different FSM, print an error and mark it red, instead of exiting with exception. Change-Id: I73d95a0c65ca1ea586ad55234610671a53d6220f
* contrib/fsm-to-dot: less false positives on event parsingNeels Hofmeyr2018-03-261-8/+29
| | | | | | | | | | Do some more mad hacking to only detect event triggers if event names actually appear in if() or case: statements. Also combine events in consecutive 'case' statements. When will this madness stop? Change-Id: Iabaaab57f0d1687607eaaa4e09c7c2439fbd7a25
* contrib/fsm-to-dot: mark arrows that feed eventsNeels Hofmeyr2018-03-261-7/+12
| | | | | | | Most arrows draw state transitions, but some want to show that an event is delivered to a state. Mark those with a "halfopen" arrow head. Change-Id: Ib07380894a6d513896c9135f175ecbf653a23eec
* contrib/fsm-to-dot: add default edge label '-'Neels Hofmeyr2018-03-261-1/+4
| | | | | | | When some edges have no label, it is sometimes hard to interpret which label belongs to which edge. Adding a '-' default label clarifies the edge labeling. Change-Id: I3a10b615288107e8fc12ffdbbe0099cf51abe94f
* contrib/fsm-to-dot: warn and draw unallowed state transitionsNeels Hofmeyr2018-03-261-1/+12
| | | | | | | | | | | | | | | | Hacked as it is, fsm-to-dot is capable of detecting action functions transitioning to states that are not allowed according to the FSM definition struct. Draw those in red and output a warning. Found these osmo-bsc gscon errors with this patch: ERROR: gscon_fsm_active() triggers a transition to ST_WAIT_HO_COMPL, but this is not allowed by the FSM definition ERROR: gscon_fsm_wait_ho_compl() triggers a transition to ST_WAIT_MDCX_BTS_HO, but this is not allowed by the FSM definition Related: OS#3109 Change-Id: Ic6319a958b3c7247510c1930bac8b02b95f9dcf2
* contrib/fsm-to-dot: don't match on event names in commentsNeels Hofmeyr2018-03-261-0/+4
| | | | | | | | | | | | | Strip comments from function bodies before matching on event names. In osmo-bsc's gscon FSM, there often are event names in comments. The naive parsing of fsm-to-dot.py mistakes these as events causing state transitions, but the comments are just explaining how states interact. Makes me reconsider parsing the C with clang instead, but I got away with a dirty hack once more. Change-Id: I56d70ae14d363f7ca655dced16d93d795b3f940d
* contrib/fsm-to-dot: allow transition from and to the same stateNeels Hofmeyr2018-03-261-3/+5
| | | | | | | In osmo-bsc's new gscon FSM, there is an osmo_fsm_inst_state_chg() from ST_ACTIVE to ST_ACTIVE. Avoid an exception triggering on this simple fact. Change-Id: I420c7be84e3af555cc5e8bddbff7261013348375
* contrib/fsm-to-dot: add -h option to print basic instructionsNeels Hofmeyr2018-03-261-0/+4
| | | | Change-Id: I196033e44d50ebb73cf9b44cbdc94a2b8b4f98ce
* cosmetic: gsm0808_test: drop extraneous assertionNeels Hofmeyr2018-03-241-1/+0
| | | | | | | Recent commit I77cd4b9142510c6914298b720d9c19ab68f9ebef left an obsolete assertion around. It is already done in the if-body now. Change-Id: I1bb2ea363e8a9d86b24338df3584abc93ebc6dd4
* fix gsm0808_enc_cell_id_list2 for leading-zero MNCNeels Hofmeyr2018-03-232-6/+3
| | | | | | | | | Use non-deprecated API to decode encode in gsm0808_enc_cell_id_list2(). Adjust gsm0808_test.c to now expect the correct results instead of previous failure. Change-Id: I1ce78883995e0d484368046b69db5afb2b4adc97
* show failure in gsm0808_enc_cell_id_list2() in gsm0808_testNeels Hofmeyr2018-03-231-4/+8
| | | | Change-Id: I763b18d2922701ad97382269747ff0cbb7bd657b
* gsm0808_test: cosmetic: test non-hex MCCNeels Hofmeyr2018-03-231-6/+6
| | | | | | | | | | | | | | | The test currently sets the MCC by a hex value, which is a weird choice. The MCC gets BCD'd and hence we will see the decimal values 1:1 in the encoded octets as hex digits. Using hex as input obscures that: Right now it sets mcc = 0x123, which is actually 291 in decimal, and we hence see "92 .1" in the expected BCD result. Using 0x124 in the test source actually makes it hard to see where the 0x123 went. Change the MCC to decimal notation (123, 124, 125) and adjust the expected encoded output. Change-Id: I973835c54a90fefe50d2b3581324d12556715f58
* gsm0808_test: cosmetic: re-arrange struct init; print hexdump on failureNeels Hofmeyr2018-03-231-24/+32
| | | | | | | | | | | I am going to ehance the test to actually include leading-zero MNC, but first I would like to simplify how the test source struct is initialized, before I edit around in it. Also, when the memcmp() fails, print hexdumps of expected and actual result for comparison. I needed it to figure out a test failure, might as well keep it. Change-Id: I77cd4b9142510c6914298b720d9c19ab68f9ebef
* gsm_08_08: correct speech codec defaultsPhilipp Maier2018-03-233-13/+13
| | | | | | | | | | | | The speech codec defaults are not correct. The defaults recommended in 3GPP TS 28.062, Table 7.11.3.1.3-2 are limited by 3GPP TS 48.008, Section 3.2.2.103. Some defaults are actually reserved for future use. Also the endianess of the 16 bit values is reversed. - correct values so that they match the specification - transmit bytes in the correct endianess Change-Id: I6c3a34d39a375d71c4128fd38f06629e8b98b100
* fsm: Update the name as well if the id is updated and accept NULLDaniel Willmann2018-03-192-14/+26
| | | | | | | | | If the name stays the same the log messages will still log with the old id. Since we can now change the id we need to update the name as well. NULL as id was allowed before so we should allow that as well. Change-Id: I6b01eb10b8a05fee3e4a5cdefdcf3ce9f79545b4
* abis_nm: Introduce abis_nm_dump_foh()Harald Welte2018-03-173-9/+15
| | | | | | | | This is a more modern way of printing the Abis OML Formatted Object Header, without assuming that it would be used in a log statement or prescribing the log level to be used. Change-Id: I9b2c2afec28882b817d104d5b062651ade7aadd8
* add a regression test for TLV parsing with repeated IEsStefan Sperling2018-03-162-2/+33
| | | | | | | | | | | | | Since commit bf383a1d83661af26ccd6521c49b655fb22531d4 tlv_parse() will return the first occurrence of a repeated IE. Add a test to verify this behaviour. This test passes with the current code and fails if bf383a1d83661af26ccd6521c49b655fb22531d4 is reverted. While here, fix lies in documentation about the return value of tlv_parse() and fix a typo in another comment. Change-Id: I041f38548c5e4236920991d6c681c1c1e04de9ca Related: OS#2904
* add a test for CELL_IDENT_WHOLE_GLOBAL cell identifier listsStefan Sperling2018-03-161-0/+61
| | | | | | | | | Add a regression test which encodes and decodes a cell identifier list of type CELL_IDENT_WHOLE_GLOBAL. Change-Id: Ie633d9e55c6a30555c0153d35aaf9f982d6e0088 Depends: If0fafbc7171da2a3044bfa9a167208a1afa1c07b Related: OS#2847
* fix parse_cell_id_lac_and_ci_list()Stefan Sperling2018-03-162-6/+49
| | | | | | | | | | | The implementation was entirely broken, reading data from wrong offsets and always writing to the first element of the decoded list. Also, add a new test for this function which found the problems. Change-Id: If0fafbc7171da2a3044bfa9a167208a1afa1c07b Related: OS#2847 Depends: Ife4e485e2b86c6f3321c9700611700115ad247b2
* fix bug in parse_cell_id_ci_list()Stefan Sperling2018-03-162-1/+36
| | | | | | | | | | | Cell ID lists with CI were misparsed because parse_cell_id_ci_list() failed to report the amount of consumed bytes to its caller. Also add a regression test which uncovered the bug. Change-Id: Ife4e485e2b86c6f3321c9700611700115ad247b2 Depends: If6b941720de33dca66b6b1aa2cb95a3275708b7f Related: OS#2847
* use gsm48_decode_lai2() in gsm0808_dec_cell_id_list()Stefan Sperling2018-03-152-9/+63
| | | | | | | | This makes gsm0808_dec_cell_id_list() properly decode 3-digit MNCs. Add a test which encodes/decodes a LAI_AND_LAC list with 3-digit MNCs. Change-Id: If6b941720de33dca66b6b1aa2cb95a3275708b7f Related: OS#2847
* fix cell identifier decoding in libosmocoreStefan Sperling2018-03-152-15/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The cell ID list decoder merged in 11a4d9dd91216fe353e94bfdbbab53bc4f891c0d has a bug which was introduced part-way through the review process in gerrit at https://gerrit.osmocom.org/#/c/6509/ When Neels suggested "why not just {...}id_list[MAXLEN] once?" I changed the cell identifier list from a union of arrays to an array of unions. After this change, elements smaller than the largest type in the union were not laid out consecutively in memory anymore. E.g. uint16_t lac values now occur at offsets of sizeof(id_list[0]) instead of offsets of sizeof(uint16_t). The problem is that I forgot to adjust the decoder accordingly, so the decoder writes to the wrong offsets and returns cell identifier lists which appear to contain uninitialized values when read back by API consumers. I found this problem while adding new regression tests to libosmocore to test encoding and decoding. This commit adds one such tests for LAC list decoding, which failed due to the above bug. I plan to write more tests, however because this first test already uncovered a severe issue I chose to submit a fix now and work on additional tests in later commits. Change-Id: Ie1a5a9d858226be578cf11a03cf996d509bd51fb Related: OS#2847
* fix a cell identifier parsing bug in libosmocoreStefan Sperling2018-03-141-2/+2
| | | | | | | | | | | | Global and LAI+LAC cell IDs were being misparsed due to an off-by-one. This code was incorrectly converted from osmo-bsc, where an additional offset of one byte was needed to skip the cell identifier field. In libosmocore, these parsing routines receive a buffer pointer which is already positioned at the start of the cell identifier field. Change-Id: I7f3e8ace26176e9cbfe2542961d2a95662aa4d97 Related: OS#2847
* support for more cell ID list types in libosmocoreStefan Sperling2018-03-138-34/+360
| | | | | | | | | | | | | | | | | | | | | | | | Introduce gsm0808_dec_cell_id_list2() with supports additional types of cell identifier lists. The new parsing routines are based on similar routines used by the paging code in osmo-bsc's osmo_bsc_bssap.c. Likewise, introduce gsm0808_enc_cell_id_list2() with support for the same additional types of cell identifier lists. The old API using struct gsm0808_cell_id_list is deprecated. The previous definition was insufficient because it assumed that all decoded cell ID types could be represented with a single uint16_t. It was declared in a GSM protocol header (gsm/protocol/gsm_08_08.h) despite being a host-side representation of data in an IE. The only user I am aware of is in osmo-msc, where this struct is used for one local variable. osmo-msc releases >= 1.1.0 make use of this API. While here, fix a small bug in a test: test_gsm0808_enc_dec_cell_id_list_bss() set the cell ID type to 'LAC' but obviously wants to use type 'BSS'. Change-Id: Ib7e754f538df0c83298a3c958b4e15a32fcb8abb Related: OS#2847
* jenkins_amd64.sh: use --enable-werror configure flag, not CFLAGSNeels Hofmeyr2018-03-131-1/+1
| | | | | | | Note that the jenkins_arm.sh passes various CFLAGS and potentially overwrites ./configure internal CFLAGS like that. I'm staying out of that for now. Change-Id: I81b50c39cd6e908c4c95651829b679425de87a28
* configure: add --enable-werrorNeels Hofmeyr2018-03-131-0/+21
| | | | | | | | | | | | | | | | | Provide a sane means of adding the -Werror compiler flag. Currently, some of our jenkins.sh add -Werror by passing 'CFLAGS="-Werror"', but that actually *overwrites* all the other CFLAGS we might want to have set. Maintain these exceptions from -Werror: a) deprecation (allow upstream to mark deprecation without breaking builds); b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds) As a last configure step before generating the output files, print the complete CFLAGS and CPPFLAGS by means of AC_MSG_RESULT. Change-Id: Ic5c8e68b64cd890b3309b4b26c7f22bde1edba83
* src/msgb.c: avoid using internal talloc APIVadim Yanitskiy2018-03-091-2/+4
| | | | | | | | | | | | | | An internal symbol '_talloc_zero' of talloc library was used during a msgb allocation. This is not actually good because: - it may be removed or modified by talloc developers; - the behaviour may be changed by talloc developers; - it's marked as internal using 'underscore'; - there is public API to do the same. So, let's use the public API. Change-Id: I1080c9071e997944cc0f9fc3716129e9395437ad
* src/msgb.c: print an error if msgb allocation failedVadim Yanitskiy2018-03-091-1/+3
| | | | | | | | | | | | Printing an error message when msgb allocation failed was initially intended, but have been commented out for years. This would facilitate the bug hunting process, especially on embedded platforms with limited resources (e.g. amount of RAM). The GLOBAL logging subsystem with FATAL level is used for printing such messages. Change-Id: I3e2d1beabd6936fc28a1ad664c083ff1698bb644
* src/msgb.c: remove dead includes from OpenBSCVadim Yanitskiy2018-03-081-3/+0
| | | | | | | | The MSGB API is not a part of OpenBSC anymore, so let's remove dead includes, which were probably left here during the migration process. Change-Id: Ief562a6e5b220a84902f95862d67279f953ee726
* src/msgb.c: cosmetic: fix spelling mistakesVadim Yanitskiy2018-03-081-3/+3
| | | | Change-Id: I6b473aadaa22d95f2a8cc87580c638ccd7e531a4
* features: define osmo_bts_*_feature() as static inlinePhilipp Maier2018-03-051-2/+2
| | | | | | | | | | | | | | The functions osmo_bts_set_feature() and osmo_bts_has_feature() are currently defined as inline. Since inline is a hinting, the compiler might choose not to inline the function. This eventually leads to linker problems because the function is then defined multiple times. - use "static inline" instead of "inline" only. This patch is a follow up patch to Change Id 680acae725b2b8dda2f239ff20073306fdfb3f6e Change-Id: Iddd97415a17b06b69f69ddca2e2e296eb2f23a89
* osmo-release.sh: Set correct version when generating the changelogPau Espin Pedrol2018-03-051-1/+1
| | | | | | | Otherwise, while updating osmo-trx 0.2.0->0.3.0, the version printed in the changelog by gbp dch is 0.2.1 Change-Id: I744adb23b4602e5e47f80a012286578d1e59de88
* gsm23003: add osmo_mcc_from_str()Neels Hofmeyr2018-03-051-0/+11
| | | | | | | | | | I found myself often using osmo_mnc_from_str() to also decode an MCC and be strict about it, but each time I felt the need to comment like "using osmo_mnc_from_str() also for MCC". Rather formalize this properly. Use a static inline function, no need to add more symbols to libosmo-gsm. Change-Id: I020a4f11791c61742a3d795f782805f7b7e8733e
* fix osmo_mnc_from_str(): don't try to parse NULLNeels Hofmeyr2018-03-053-23/+21
| | | | | | | | In osmo_mnc_from_str() do not try to return some values even if the validation fails; hence don't try to decode a NULL pointer. That whole idea was half-baked and a can of worms to begin with. Change-Id: Ibaaa128ac60b941a015a31134eb52aef56bc6e22
* features: move bts feature related functionality to libosmocorePhilipp Maier2018-03-025-1/+95
| | | | | | | | | | | | | | | osmo-bsc and osmo-bts share enums and value strings to describe feature data that is exchanged via OML (manufacturer id) on startup. Also the functions to set and get the respecitive bits in the feature bitvectors are in osmo-bsc and osmo-bts. This is a code duplication and should be resolved. - add enum osmo_bts_features (replaces enum gsm_bts_features) - add osmo_bts_features_descs (replaces gsm_bts_features_descs) - add osmo_bts_set_feature (replaces gsm_btsmodel_set_feature) - add osmo_bts_has_feature (replaces gsm_btsmodel_has_feature) Change-Id: Id0c35aef11aa49aa40abe7deef1f9dbd12210776
* gsm23003_test: fix: compare members instead of bcmpNeels Hofmeyr2018-03-011-1/+3
| | | | | | | | | | In certain builds (for me a build with no -O2 flag) the recently added gsm23003_test test_mnc_from_str() fails, because bcmp() compares all bytes of sizeof(struct test_mnc_from_str_result), which has valid data for 7 bytes plus one padding byte that may contain arbitrary values. Instead of bcmp(), rather compare the actual members one by one. Change-Id: I28b28457c7b0462c950612fd9b87b5c7181d8bad
* introduce GSM_MCC_MNC_INVALIDNeels Hofmeyr2018-03-011-0/+4
| | | | | | | | | | In some cases, we want to mark an unset MCC-MNC. Define uint16-max for this purpose. osmo-bsc code is already doing so with a -1 and using int data types, which will become inconvenient with the new API that handles MCC and MNC as uint16_t. Change-Id: Ieee7add0bd6d94cf84743a49794bbcd38561b72f
* timer: Document osmo_gettimeofday APIPau Espin Pedrol2018-03-011-1/+17
| | | | Change-Id: I1f9e13645033c61ffaed97e457deb5e78a6bec58
* timer: Introduce osmo_clock_gettime to override clock_gettimePau Espin Pedrol2018-03-018-4/+255
| | | | Change-Id: I5bebc6e01fc9d238065bc2517058f0ba85620349
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