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* vty: fix use-after-free and memleaks in is_cmd_ambiguous()Neels Hofmeyr2018-07-112-0/+81
| | | | | | | | | | | | | | | | | | | | | | | vty_test: add test against ambiguous cmd causing use-after-free and memory leaks. Add this test along with the fix, because the new test triggers the memory use-after-free and leaks, causing build failures. Add cmd_deopt_with_ctx() to allow passing a specific talloc ctx. is_cmd_ambiguous(): keep all cmd_deopt() allocations until the function exits. Add a comment explaining why. Before this, if a command matched an optional "[arg]" with square brackets, we would keep it in local var 'matched', but we would free the string it points to at the end of that loop iteration; upon encountering another match, we would attempt to strcmp against the freed 'matched'. Instead of adding hard-to-read and -verify free/alloc dances to keep the 'matched' accurately freed/non-freed/..., just keep all cmd_deopt() string allocated until done. Needless to say that this should have been implemented on a lower level upon inventing optional args, but at least this is fixing a program crash. Related: OS#33903390 Change-Id: Ia71ba742108b5ff020997bfb612ad5eb30d04fcd
* Don't enforce Python 2 for utilitiesVadim Yanitskiy2018-07-021-1/+1
| | | | | | | | | | | The conv_gen.py utility was tested against both Python 2 and 3, so there is no need to enforce Python 2. Also, having: #!/usr/local/bin/python{2|3} is a bad idea, because Python may be installed in a different location. Change-Id: I6007d481047b584db13d6eda70fb99f11f9ddaa1
* gsm/gsm0480: refactor and expose gsm0480_parse_facility_ie()Vadim Yanitskiy2018-06-112-0/+48
| | | | | | | | | | | | | | 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
* gsm/gsm0480.c: introduce gsm0480_extract_ie_by_tag()Vadim Yanitskiy2018-06-112-0/+81
| | | | | | | | 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
* Add osmo_isqrt32() to compute 32bit integer square rootHarald Welte2018-06-062-0/+24
| | | | Change-Id: I2b96db6e037e72e92317fec874877e473a1cf909
* add osmo_fsm_inst_state_chg_keep_timer()Neels Hofmeyr2018-05-312-1/+105
| | | | Change-Id: I3c0e53b846b2208bd201ace99777f2286ea39ae8
* GSUP: introduce new messages for SS/USSD payloadsVadim Yanitskiy2018-05-313-1/+60
| | | | | | | | | | | | | | | | | 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
* GSUP: implement TCAP-like session managementVadim Yanitskiy2018-05-313-1/+19
| | | | | | | | | | | | | | | | | | | | 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
* gsm: kasumi: Fix dynamic-stack-buffer-overflow on out buffers not multiple ↵Pau Espin Pedrol2018-05-171-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | of 64 bits Fixes following AddressSanitizer report during gea_test run with gcc 8.1.0: ==8899==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffc5f1719bb at pc 0x7fe574adc5fe bp 0x7ffc5f171460 sp 0x7ffc5f171450 WRITE of size 1 at 0x7ffc5f1719bb thread T0 #0 0x7fe574adc5fd in osmo_store64be_ext ../../include/osmocom/core/bit64gen.h:75 #1 0x7fe574adc649 in osmo_store64be ../../include/osmocom/core/bit64gen.h:104 #2 0x7fe574ade936 in _kasumi_kgcore libosmocore/src/gsm/kasumi.c:186 #3 0x7fe574ae2532 in gea4 libosmocore/src/gsm/gea.c:44 #4 0x7fe574ae266c in gea3 libosmocore/src/gsm/gea.c:60 #5 0x7fe574a9b616 in gprs_cipher_run libosmocore/src/gsm/gprs_cipher_core.c:95 #6 0x56422d3fb2ee in test_gea libosmocore/tests/gea/gea_test.c:29 #7 0x56422d3fb506 in main libosmocore/tests/gea/gea_test.c:49 #8 0x7fe5730f406a in __libc_start_main (/usr/lib/libc.so.6+0x2306a) #9 0x56422d3fadf9 in _start (libosmocore/tests/gea/.libs/lt-gea_test+0x1df9) The kasumi_test is updated to calculate the entire array of bits according to expected result. Before this commit it worked by writing the entire last 64bit block, and addressSanitizer cannot catch it because the allocated buffer is 64bit aligned too. Change-Id: I7b2a0224a3b5527d5a3ad7e17efc73081b63eac1
* tests: a5_test: Print wrong buffer correctly on errorPau Espin Pedrol2018-05-161-1/+3
| | | | | | | | Before this patch, osmo_hexdump is called stacked in th esame printf function. As a result, the first returned buffer is overwriten by the second, which means the printed buffers will show as the same always. Change-Id: I364328a59da31537c6c9b969e34edd360b685081
* tests: gea_test: Use correct max size for key in bufferPau Espin Pedrol2018-05-161-2/+2
| | | | | | Expect key sizes for GEA are 64-128 bits. Change-Id: Iaf81992a2901733b630e3046b0c4bdc1fb9a8ace
* tests: bitrev_test: Fix dynamic-stack-buffer-overflowPau Espin Pedrol2018-05-162-4/+3
| | | | | | | | | | | | | | | | | Fixes following AddressSanitizer report: ==1983==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0x7ffc245f47e6 at pc 0x7f3e2deea68c bp 0x7ffc245f4750 sp 0x7ffc245f4740 WRITE of size 1 at 0x7ffc245f47e6 thread T0 #0 0x7f3e2deea68b in osmo_nibble_shift_right libosmocore/src/bits.c:92 #1 0x55c01902e1ab in sh_chk libosmocore/tests/bits/bitrev_test.c:215 #2 0x55c01902ed8f in main libosmocore/tests/bits/bitrev_test.c:305 #3 0x7f3e2c93006a in __libc_start_main (/usr/lib/libc.so.6+0x2306a) #4 0x55c01902c059 in _start (libosmocore/tests/bits/.libs/lt-bitrev_test+0x5059) This patch can be seen as a follow-up of commit 4fd6023b0383e7efa3b7b0211104a86ff5d3d4f6, which already fixed the left-shift case in the same way. Change-Id: I6e86d0164b7e982bf7b7449d5b3abfb3e1e5da46
* configure: Check separately for lib implementing dlopen and dlsymPau Espin Pedrol2018-05-041-3/+3
| | | | | | | | | | Sometimes the library probiding dlopen is not the same one providing dlsym. This is the case when compiling with AddressSanitizer enabled. In this case, AC_SEARCH_LIBS([dlopen]...) reports no lib is required, but tests using dlsym still require to link against -ldl. Change-Id: Ic619b0885688066b60c97caf1e2c7e5402c1d9f7
* gsm0808_test: silence deprecation: use gsm0808_create_layer3_2()Neels Hofmeyr2018-04-231-1/+11
| | | | Change-Id: Ia0afecafa8862ffbe2af3c86e5552673f0935eb0
* gsm0808_test: fix more missing inits (address sanitizer issues)Neels Hofmeyr2018-04-231-59/+52
| | | | | | | | | | | | | In recent Iaa20c59f624fbdc69a018cabd0f7e9c5a1389519 I fixed one missing init issue and didn't notice the N other similar ones right next to it. Also fix the remaining missing inits. Fixes: ../../../../src/libosmocore/src/gsm/gsm0808_utils.c:187:8: runtime error: load of value 13, which is not a valid value for type '_Bool' ../../../../src/libosmocore/src/gsm/gsm0808_utils.c:191:8: runtime error: load of value 119, which is not a valid value for type '_Bool' Related: OS#3148 Change-Id: Ie8a1a9b3132024135ca70390eae4d21c907b2edc
* RSL/LAPDm: Not all RLL message are "transparent"Harald Welte2018-04-191-1/+0
| | | | | | | | | | 3GPP TS 48.058 has a very clear definition of which messages are "transparent" and hence have the T-bit == 1. This is *not* just all RLL messages, but basically only RLL_DATA.{ind,req} and RLL_UNITDATA.{ind,req}. All other messages are non-transparent. Change-Id: I9f83654af189d818563d799bf623325b7fee8e70 Closes: OS#3188
* add gsm0808_cell_{id,id_list}_name() and friendsNeels Hofmeyr2018-04-182-97/+54
| | | | | | | | | | | | | | | | | | | | 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
* test_gsm0808_enc_dec_speech_codec_with_cfg: initialize properlyNeels Hofmeyr2018-04-151-7/+7
| | | | | | | | | | | | | | The uninitialized members of enc_sc sporadically hit address sanitizer failure during gsm0808_test, like: ../../../../src/libosmocore/src/gsm/gsm0808_utils.c:187:8: runtime error: load of value 13, which is not a valid value for type '_Bool' ../../../../src/libosmocore/src/gsm/gsm0808_utils.c:191:8: runtime error: load of value 119, which is not a valid value for type '_Bool' How the test survived so long is a mystery to me; as soon as some uninitialized members would by coincidence not be zero, the test should always have failed at OSMO_ASSERT(memcmp(&enc_sc, &dec_sc, sizeof(enc_sc)) == 0). Related: OS#3148 Change-Id: Iaa20c59f624fbdc69a018cabd0f7e9c5a1389519
* test_gsm0808_enc_dec_cell_id_list_lac(): populate all LACsNeels Hofmeyr2018-04-132-4/+4
| | | | Change-Id: I7535166a2827c03a954fe72d5d99217e4f25868f
* test_gsm0808_enc_dec_cell_id_list_lac(): validate encoded bytesNeels Hofmeyr2018-04-132-8/+9
| | | | Change-Id: I81b1ffbe6a5ec566c112492c2cbaf99c018c45bb
* add gsm0808_{enc,dec}_cell_idNeels Hofmeyr2018-04-132-0/+206
| | | | | | | | | | | | | | | | | | | Clarify semantics and micro-optimise for the case of single Cell Identifer IEs. Test in gsm0808_test.c So far we have gsm0808_enc_cell_id_list2(), but there also exist instances of single Cell Identifiers (3GPP TS 48.008 3.2.2.17). It is possible to decode the same using the cell identifier list API, but this forces the caller to also keep a full struct gsm0808_cell_id_list2 with all its 127 entries around. E.g. for handover, there are two Cell Identifiers (Serving and Target); I'd need two full cell id lists for each, and these would be dynamically allocated for each handover operation, whether it uses them or not. Related: OS#2283 (inter-BSC HO, BSC side) Change-Id: I9f9c528965775698ab62ac386af0516192c4b0cc
* add tlv_parse2(), capable of multiple instances of the same IENeels Hofmeyr2018-04-131-0/+11
| | | | | | | | | | | | | | | Allow passing multiple struct tlv_parsed in an array, to allow parsing as many repeated IEs as are expected by the caller. From tlv_parse(), call tlv_parse2() with dec_multiple = 1 to yield the previous behavior. tlv_parse() remains valid API. An example of multiple IEs is the BSSMAP Handover Request, containing Cell Identifier (Serving) and Cell Identifier (Target), both defined by 3GPP TS 48.008 3.2.2.17 with identical IE tags; both are mandatory. Related: OS#2283 (inter-BSC HO, BSC side) Change-Id: Id04008eaf0a1cafdbdc11b7efc556e3035b1c84d
* add gsm0808_cell_id_list_add() to combine two cell identifier listsNeels Hofmeyr2018-04-132-0/+280
| | | | | | | | | | | | | This will be used by the upcoming neighbor_ident API in osmo-bsc, where the vty interface allows composing neihbor BSS cell identifier lists, and we want to allow adding individual items from individual user commands. It will also be useful to accumulate cell identifiers in case a subscriber sees multiple alternative cells from a neighboring BSS, and we want to pass these on to the MSC in a Handover Required. Related: OS#2283 (inter-BSC HO, BSC side) Change-Id: I5781f5fa5339c92ab2e2620489b002829d206925
* add osmo_fsm_inst_update_id_f()Neels Hofmeyr2018-04-092-0/+51
| | | | | | | | | | | | | | | | In the osmo-msc, I would like to set the subscr conn FSM identifier by a string format, to include the type of Complete Layer 3 that is taking place. I could each time talloc a string and free it again. This API is more convenient. From osmo_fsm_inst_update_id(), call osmo_fsm_inst_update_id_f() with "%s" (or pass NULL). Put the name updating into separate static update_name() function to clarify. Adjust the error message for erratic ID: don't say "allocate", it might be from an update. Adjust test expectation. Change-Id: I76743a7642f2449fd33350691ac8ebbf4400371d
* cosmetic: osmo_fsm_inst_update_id(): don't log "allocate"Neels Hofmeyr2018-04-091-2/+2
| | | | | | | | | On erratic id in osmo_fsm_inst_update_id(), don't say "Attempting to allocate FSM instance". Escape the invalid id using osmo_quote_str(). Change-Id: I770fc460de21faa42b403f694e853e8da01c4bef
* fsm: id: properly set name in case of NULL idNeels Hofmeyr2018-04-092-14/+1
| | | | | | | | | | Since alloc relies on osmo_fsm_inst_update_id() to set the name, never skip that. In osmo_fsm_inst_alloc(), we allow passing a NULL id, and in osmo_fsm_inst_update_id(), we set the name without id if id is NULL. Change-Id: I6d6b09a811b82770818f19b189a57d9fc4a8133b
* fsm_test: more thoroughly test FSM inst ids and namesNeels Hofmeyr2018-04-092-7/+138
| | | | | | | | | | | | | | | | | | Place id and name testing in its separate section, test_id_api(). Add a test that actually allocates an FSM instance with a NULL id, which is allowed, but uncovers a bug of an unset FSM instance name. osmo_fsm_inst_name() falls back to the fsm struct's name on NULL, but osmo_fsm_inst_find_by_name() fails to match if the instance's name is NULL (and until recently even crashed). Show this in fsm_test.c with loud comments. Add test to clear the id by passing NULL. Add test for setting an empty id. Add test for setting an invalid identifier (osmo_identifier_valid() == false). Change-Id: I646ed918576ce196c395dc5f42a1507c52ace2c5
* fsm_test: terminate the main loop instead of exit on timeoutNeels Hofmeyr2018-04-092-2/+7
| | | | | | | | | | | | | | | In fsm_test.c, we have FSM instance cleanup after the select main loop, but we exit(0) in the timer cb; hence the final code is never called. Rather clean up the instance and hence also test that, by using a global flag to exit the main loop upon timeout. Adjust expected stderr output. BTW, in a subsequent commit, I want to move the fsm instance id testing to below the main loop, to more clearly group the tested bits. Change-Id: Ia47811ffcc1bd68d2630c86be7ab98fc1f338773
* add osmo_quote_str(),osmo_quote_str_buf() and testNeels Hofmeyr2018-04-092-0/+88
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rationale: with osmo_escape_str(), you get the escaped contents of the string, but not so graceful handling of NULL strings. The caller needs to quote it, and for NULL strings not quote it. osmo_quote_str() is like osmo_escape_str() but always quotes a non-NULL string, and for a NULL string returns a literal NULL, i.e. it should (tm) give the exact C representation of a string. That's useful in testing, to show exactly what char* situation we have, without jumping through hoops like if (str) printf("\"%s\"", osmo_escape_str(str, -1)); else printf("NULL"); Copy the unit test for osmo_escape_str() and adjust. To indicate that the double quotes are returned by osmo_quote_str(), use single quotes in the test printf()s. I considered allowing to pick the quoting characters by further arguments, but that complicates things: we'd need to escape the quoting characters. Just hardcode double quotes like C. Change-Id: I6f1b3709b32c23fc52f70ad9ecc9439c62b02a12
* use osmo_init_logging2() with proper talloc ctxNeels Hofmeyr2018-04-0614-21/+47
| | | | | | | | Ironically, when deprecating osmo_init_logging() in I216837780e9405fdaec8059c63d10699c695b360, I forgot to change the callers within libosmocore itself, i.e. in the various regression tests. Change-Id: Ia36c248f99353d5baaa2533f46a2f60a8579bdf8
* fix ctrl_test sanitizer issuesNeels Hofmeyr2018-04-051-1/+12
| | | | | | | Add logging to root ctx, add msgb ctx to root ctx, free wqueue to simulate the msgb being sent, and assert final talloc size. Change-Id: Ief3d5e7b6c4d781b3854e230e45a67d5281b94cd
* ctrl: fix deferred commands (and hence fix osmo-bts-sysmo 'clock-info' cmd)Neels Hofmeyr2018-04-052-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* 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 Hofmeyr2018-03-231-4/+1
| | | | | | | | | 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 Maier2018-03-231-7/+7
| | | | | | | | | | | | 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 Willmann2018-03-191-0/+4
| | | | | | | | | 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
* add a regression test for TLV parsing with repeated IEsStefan Sperling2018-03-161-0/+31
| | | | | | | | | | | | | 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 Sperling2018-03-161-0/+42
| | | | | | | | | | | 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 Sperling2018-03-161-0/+35
| | | | | | | | | | | 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 Sperling2018-03-151-0/+57
| | | | | | | | 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 Sperling2018-03-151-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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