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* vty: command.c: Fix: multi-choice args are no longer passed incomplete to ↵Pau Espin Pedrol2019-06-143-18/+56
| | | | | | | | | | | vty func For instance, take command "multi0 (one|two|three)": If user executes "multi0 tw", VTY func will receive argv[0]="two" instead of argv[0]="tw". Fixes: OS#4045 Change-Id: I91b6621ac3d87fda5412a9b415e7bfb4736c8a9a
* vty: tests: Verify incomplete optional parameters are passed to vty funcsPau Espin Pedrol2019-06-142-0/+18
| | | | | | | | The test shows that in the case were "single0 on" is executed, VTY function should return complete "single0 one" but it doesn't. Related: OS#4045 Change-Id: Ib5b9dc07e2b280dc95011b3926afb1d490cadd81
* vty: command.c: Get rid of big indentation blockPau Espin Pedrol2019-06-141-30/+30
| | | | | | This block will become bigger in forthcoming commits. Change-Id: Ibc1494014b1e77ce10950f7268a44d2d2091a6f2
* command.c: Improve return check condition in cmd_execut_command_real()Pau Espin Pedrol2019-06-141-2/+2
| | | | | | | Check against MAX argc is changed to == since it cannot be incremented twice without passing the check. Change-Id: Ia330e475989fda863bedcc3cbf94deaf8dd83037
* logging: Use reentrant ctime_r instead of ctimePau Espin Pedrol2019-06-131-5/+8
| | | | | | | | It was noticed that multithreaded processes like osmo-trx can crash upon using ctime(). Related: OS#4055 Change-Id: I19ebf29a2f1fc855bb7d56766b338c7c3432dfd1
* (minor) fix typo in commentsKévin Redon2019-06-131-3/+3
| | | | Change-Id: I697af428a2ea9a0ccd3f04ba8ec4664935ae29f8
* logging: Check return error from time() callPau Espin Pedrol2019-06-131-1/+2
| | | | | Related: OS#4055 Change-Id: Ief155a76169426a677256e09d3e91751c4e2529f
* minor: don't redefine macrosKévin Redon2019-06-132-0/+4
| | | | | | | | | | | the DEBUG macro name and ARRAY_SIZE macro function are frequently used in other projects. If these projects also use libosmocore, the macros will be redefined. This also generates a warning message during compilation. Not redefining the macros removes the warning message and possible (but unlikely) mis-redefinition. Change-Id: I0ba91eae8eacc5542d1647601b372e417ed1713c
* fix isdigit taking unsigned as inputKévin Redon2019-06-132-2/+2
| | | | | | | | | | | | | fixes the following error warnings when cross-compiling using: ./configure --enable-static --prefix=/usr/local/arm-none-eabi --host=arm-none-eabi --enable-embedded --disable-doxygen --disable-shared --disable-pseudotalloc --enable-external-tests CFLAGS="-Os -ffunction-sections -fdata-sections -nostartfiles -nodefaultlibs -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations -Wno-error=cpp -mthumb -Os -mlong-calls -g3 -mcpu=cortex-m4 -mfloat-abi=softfp -mfpu=fpv4-sp-d16 -Wno-error=format" utils.c:1002:18: error: array subscript has type 'char' [-Werror=char-subscripts] 1002 | if (!isdigit(in[i])) gsm23003.c:414:34: error: array subscript has type 'char' [-Werror=char-subscripts] 414 | if (!mnc_str || !isdigit(mnc_str[0]) || strlen(mnc_str) > 3) Change-Id: Ia13fd5ee79fc6dc3291c0b99958ab3c01afee17d
* vty: command.c: Get rid of huge indentation blockPau Espin Pedrol2019-06-121-91/+94
| | | | | | | | Huge conditional block inside for loop is negated in this patch together with a "continue" keyword, similar to what was already done recently in 4742526645d6137dd90ef369f0415afdb91736dc. Change-Id: I803c4ed38e9ab09bf929528c75a60e6f65da3928
* cosmetic: vty: command.c: Use upper case for enum match_type value namesPau Espin Pedrol2019-06-121-101/+101
| | | | | | | Makes code easier to follow because enum values no longer look like variables. Change-Id: Ib6e9592c5962d047869a280c10f9b557fae6f435
* protocol/gsm_04_08.h: do not check if unsigned is positiveVadim Yanitskiy2019-06-121-3/+3
| | | | Change-Id: I6b486b52a3733d5fd5e8ba18acbc9374e2e8bd7e
* core/utils: drop meaningless const from return value of osmo_luhn()Vadim Yanitskiy2019-06-122-2/+2
| | | | Change-Id: I085da06f31a0a6862ae2ba041fafc134cc240f7e
* vty: command.c: Fix is_cmd_ambiguous() returning always 0Pau Espin Pedrol2019-06-113-43/+14
| | | | | | | | | | inner block defined variable "enum match_type ret" was being masking outter block variable "int ret = 0". The ret variable was being given non zero values only inside the inner block, so that change was done on the inner variable and not the outer one, which is returned. Fixes: 5314c513f23688462d7f7937e5ae5e0d5cd4548e Change-Id: Iec87d7db49a096d07e38ff8a060b923a52bfd6ba
* vty: command.c: Get rid of huge indentation blockPau Espin Pedrol2019-06-111-84/+87
| | | | | | | Huge conditional block inside foor loop is negated in this patch together with a "continue" keyword. Change-Id: I9715734ed276f002fdc8c3b9742531ad36b2ef9e
* gsm48_decode_bcd_number2: fix ENOSPC edge caseOliver Smith2019-06-073-3/+28
| | | | | | | | | | | | | Return ENOSPC if the decoding buffer is one byte too small, instead of returning 0 and silently truncating the string. Add a new "truncated" variable to detect if the loop breaks in the final iteration. The string is not truncated if there is exactly one 0xf ('\0') higher nibble remaining. This is covered by the existing test case "long 15-digit (maximum) MSISDN, limited buffer". Related: OS#4049 Change-Id: Ie05900aca50cc7fe8a45d17844dbfcd905fd82fe
* vty_transcript_test.vty: add choice auto-complete testsVadim Yanitskiy2019-06-061-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is a result of discussion we had in [1]. The key idea is that libosmovty should properly auto-complete the commands containing choice, such as the following one: multi0 (one|two|three) [1] If9b0c0d031477ca87786aab5c269d00748e896c8 Right now, sending the following command: (osmo-foo-bar)# multi0 th would basically match the following vector: multi0 three however the resulting argv would be: ["multi0", "th"] Moreover, sending the following command: (osmo-foo-bar)# multi0 t would basically match the following vectors: multi0 two multi0 three because both start from 't', so the resulting argv would be: ["multi0", "t"] which is ambiguous! The expected output is: (osmo-foo-bar)# multi0 th ok argc=1 three (osmo-foo-bar)# multi0 t % Ambiguous command. This is going to be fixed in the follow up patches. Change-Id: I83c3aef813173952641035862c534ef16384780e
* fsm: Reduce amount of copy+pasted LOGPFSMSRC() statementsHarald Welte2019-06-051-17/+15
| | | | | | | | Instead of copy+pasting the same LOGPFSMSRC("State change to " ...) with slightly different trailer depending on the FSM timer, let's first snprintf() to a stack variable and then have a single log statement. Change-Id: I49528c4ca1fa11aef09c2092615dccca450b847c
* fsm: Allow millisecond granularity in osmo_fsm built-in timerHarald Welte2019-06-052-23/+46
| | | | | | | | | | | | | | | | | | | | | | | So far, the public API of osmo_fsm only allowed integral seconds as timeout. Let's change that to milli-seconds in order to cover more use cases. This introduces * osmo_fsm_inst_state_chg_ms() * osmo_fsm_inst_state_chg_keep_or_start_timer_ms() Which both work exactly like their previous counterparts without the _ms suffix - the only difference being that the timeout parameter is specified in milli-seconds, not in seconds. The value range for an unsigned long in milli-seconds even on a 32bit platform extends to about 48 days. This patch also removes the documentation notice about limiting the maximum value to 0x7fffffff due to time_t signed-ness. We don't use time_t but unsigned long. Change-Id: I35b330e460e80bb67376c77e997e464439ac5397
* lapd_core: Perform N200 retransmissions, not N200-1Harald Welte2019-06-051-4/+4
| | | | | | | | | | | | | | | During testing with BTS_Tests_LAPDm.TC_t200_n200() it was discovered that the existing LAPD[m] implementation always gave up at N200-1 retransmissions, rather than N200 retransmissions. The first transmission doesn't count, and hence we must have N200 actual re-transmissions. The Error message is then described as "T200 expired N200+1 times", i.e. we start T200 one more time after the last re-transmission and only give up if it expires again (i.e. no ACK received) Change-Id: Ic33854ee61311f73b7db55eeef10280349151097 Related: OS4037
* lapdm: Allow user to specify T200 values; Use correct N200 valuesHarald Welte2019-06-053-15/+85
| | | | | | | | | | | | | | | | | | TS 04.06 specifies a N200 re-transmission counter that depends on the channel type, which we didn't care about at all so far. Let's have the caller tell us the channel type so we can internally look up the correct N200 value for it. At the same time, permit the user to specify T200 re-transmission timer values for each SAPI on both DCCH and ACCH, which is required at least in the BTS as per GSM TS 12.21. Also, extend the timer resolution of the API from seconds to milli-seconds, which is more applicable as particularly on the FACCH the recommended values are in the 200ms range. Change-Id: I90fdc4dd4720d4e02213197c894eb0a55a39158c Related: OS#3906 Related: OS#2294 Related: OS#4037
* gsm0808_utils: Add gsm0808_decode_cell_id_u()Harald Welte2019-06-043-11/+60
| | | | | | | | | This function parses a single Cell ID list element into a 'union gsm0808_cell_id_u'. This function is going to be used by the upcoming CBSP support. Related: OS#3537 Change-Id: I08b33881667aa32f01e53ccb70d44d5b79c7c986
* make all library-internal static buffers thread-localHarald Welte2019-06-0413-33/+32
| | | | | | | | | | | | | | | We have a number of library-internal static global buffers which are mainly used for various stringification functions. This worked as all of the related Osmocom programs were strictly single-threaded. Let's make those buffers at least thread-local. This way every thread gets their own set of buffers, and it's safe for multiple threads to execute the same functions once. They're of course still not re-entrant. If you need re-entrancy, you will need to use the _c() or _buf() suffix version of those functions and work with your own (stack or heap) buffers. Change-Id: I50eb2436a7c1261d79a9d2955584dce92780ca07
* utils: add gsmtap_logread.py a gsmtap log readerAlexander Couzens2019-06-042-0/+167
| | | | | | | | Receive gsmtap logs and feeds it into the python logging framework. Allows to use generic logging features and further utilities. Change-Id: I24478d8e16066c6118e867bdba54c6418c15e170
* lapdm: Don't truncate L3 payload at 200 bytes lengthHarald Welte2019-06-021-1/+1
| | | | | | | | | 3GPP TS 04.06 is quite clear that the [segmented] L3 payload can be as long as 251 bytes. Our libosmocore lapdm implementation truncated already at 200 bytes :( Change-Id: I6769986f27dda1d429ed7b2e32c36d34663acba9 Closes: OS#4035
* socket.c: fix Doxygen doc for osmo_sock_unix_init_ofd()Vadim Yanitskiy2019-06-011-2/+2
| | | | | | One typo s/optionall/optionally/, and a few incorrect references. Change-Id: Iab42aa376b5cf4cf36413fede46e001c6b2d1525
* vty/command.c: cosmetic: add missing curly bracketsVadim Yanitskiy2019-06-011-2/+4
| | | | | | Otherwise it's a bit hard to read the code. Change-Id: I807ec71cfb67976251be844cdb2d2776b1837438
* gsm48_encode_bcd_number(): clarify optional LHV header initializationVadim Yanitskiy2019-05-293-6/+16
| | | | Change-Id: Iafd911dd55691b3715391e3899cd6971245c8d7f
* rest_octets: Remove SI2ter + SI2bis encoders that don't do anythingHarald Welte2019-05-283-35/+0
| | | | | | | | The library should either provide functions that implement encoding of those rest octets, or it shouldn't. Providing a function that doesn't do anything but pad the buffer is useless. Change-Id: Ie10684de6a6b2663e2a871fcdb2b275b6ad7a1e7
* rest_octets: Implement actual SI6 rest octets encodingHarald Welte2019-05-282-12/+73
| | | | | | | | | There's very little sense behind introducing a function into libosmogsm which doesn't implement 90% of the spec. Let's allow the caller to provide the various optional bits of information to the encoder, rather than generating mostly static SI6 rest octets. Change-Id: Id75005a0c4a02ce7f809692d58b3bd226bc582b2
* rest_octets: Add function to parse SI3 rest octetsHarald Welte2019-05-283-0/+82
| | | | | | Change-Id: I690cf308311f910005a325d50f5d5d825678d2b2 Related: OS#3075 Related: OS#4023
* rest_octets: Suffix encoder functiosn with _encodeHarald Welte2019-05-283-28/+32
| | | | | | ... otherwise it's not really clear what they do. Change-Id: I08e0ca9a8d13c7aa40b9d90f34f0e13adb87d4e0
* rest_octets: Fix export of osmo_gsm48_rest_octetsHarald Welte2019-05-281-8/+8
| | | | | | | | the symbols had an omso_ prefix, while the entry in the .map file didn't. As a result, all related symbols were never exported and hence not usable by any users of the dynamic library. Change-Id: I8b1ee2405f6338507e9dfb5f1f437c4c2db2e330
* rest_octets: Actually include gsm48_rest_octets.c in Makefile.amHarald Welte2019-05-281-1/+1
| | | | | | | | | The gsm48_rest_octets.c file was added in Change-Id I47888965ab11bba1186c21987f1365c9270abeab, but it never actually ended up being compiled as it wasn't listed in the makefile :/ Change-Id: I0355115c2645f236c9e32cf7a563cf51a857e8a3 Relsted: OS#3075
* rest_octets: Use correct symbols names for range encoderHarald Welte2019-05-281-4/+4
| | | | | | | | | As gsm48_rest_octets.c is not listed in the Makefile.am, it's never actually compiled and we never noticed that it's calling functions by symbol names that don't exist :/ Change-Id: I7b1e436f70e0c60979261db87606f38271ec47d3 Related: OS#3075
* gsm48_rest_octets: Fix license: GPLv2+ instead of AGPLv3+Harald Welte2019-05-281-4/+6
| | | | | | | | | | | | | | libosmo{core,gsm,vty} code is GPLv2+. The rest octet code originated in osmo-bsc.git and was moved here without changing the license. That was a mistake, it always was meant to be under GPLv2-or-later after moving to libosmocore.git. Original copyright is mine. For contributions by sysmocom, I as the managing director can approve the license change. This means only Holger needs to ACK this. Change-Id: Ief3009dc28dd83e1e26a7101af2eed2341684a87
* gsm48_decode_bcd_number2(): return -EINVAL if LV has too big lengthVadim Yanitskiy2019-05-283-5/+5
| | | | Change-Id: Ie07b2e8bc2f9628904e88448b4ee63b359655123
* gsm48_decode_bcd_number2(): fix: return -ENOSPC on truncationVadim Yanitskiy2019-05-283-7/+17
| | | | | | | | The documentation of gsm48_decode_bcd_number2() clearly states that the output truncation is a erroneous case, so it should actually return negative in such cases. Let's return -ENOSPC. Change-Id: I75680f232001ba419a587fed4c24f32c70c3ad2b
* gsm48_decode_bcd_number2(): fix output truncationVadim Yanitskiy2019-05-282-4/+4
| | | | | | | | | | | | | | | | | Thanks to the new unit test for BCD number encoding / decoding, it was discovered that gsm48_decode_bcd_number2() does not properly handle encoded LV if the output buffer size is equal to the original MSISDN length + 1 (\0-terminator): one digit is lost. For example, decoding of 15-digit long MSISDN to a buffer of size 16 (15 digits + 1 for \0) would give us only 14 digits. The problem was that 'output_len' was being decremented before checking the remaining buffer length and writing a digit to it. As a result, the maximum length was always one byte shorter. Change-Id: I61d49387fedbf7b238e21540a5eff22f6861e27a Fixes: OS#4025
* gsm0408/gsm0408_test.c: introduce BCD number encoding / decoding testVadim Yanitskiy2019-05-282-0/+224
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So far, both gsm48_encode_bcd_number() and gsm48_decode_bcd_number2() did not have any unit test coverage. Let's fill this gap by testing the following scenarios: - encoding / decoding of a regular 9-digit MSISDN; - encoding / decoding of a MSISDN with optional LHV; - encoding / decoding of a long 15-digit MSISDN; - encoding / decoding of a MSISDN to a buffer: - with exactly matching size, - with lower size (truncation); - decoding LV buffer with incorrect length, - encoding / decoding an empty input buffer. As it turns out, gsm48_decode_bcd_number2() does not properly handle encoded LV if the output buffer size is equal to the original MSISDN length + 1 (\0-terminator): one digit is lost. For example, decoding of 15-digit long MSISDN to a buffer of size 16 (15 digits + 1 for \0) would give us only 14 digits. This is reflected in the unit test output: Decoding HEX (buffer limit=16) '0821436587092143f5'... Expected: (rc=0) '123456789012345' Actual: (rc=0) '12345678901234' Moreover, if the output buffer is shorter than decoded number, gsm48_decode_bcd_number2() silently truncates it and returns 0, while its description states, that the rc should reflect this. To be fixed in the follow-up patches. Change-Id: I4b2c330cf8ffe4427c0bee7d5f3b74be56ecd85d Related: OS#4025
* tdef: Fix license: GPLv2+ instead of AGPLv3+Harald Welte2019-05-273-12/+15
| | | | | | | | | | | | libosmo{core,gsm,vty} code is GPLv2+. The tdef code originated in osmo-msc.git and was moved here without changing the license. That was a mistake, it always was meant to be under GPLv2-or-later after moving to libosmocore.git. Copyright is with sysmocom, so I as the managing director can approve the license change. Change-Id: Ie483ff6f6ea0a56c477649677b4b163c49df11d7
* oap_client: Fix license: GPLv2+ instead of AGPLv3+Harald Welte2019-05-273-12/+16
| | | | | | | | | | | | libosmo{core,gsm,vty} code is GPLv2+. The OAP code originated in osmo-msc.git and was moved here without changing the license. That was a mistake, it always was meant to be under GPLv2-or-later after moving to libosmocore.git. Copyright is with sysmocom, so I as the managing director can approve the license change. Change-Id: I08311fa8214c15f8df8945b9894226608cf96f15
* rsl: Add osmocom-specific extensions to RSL channel numbers for CBCHHarald Welte2019-05-272-0/+14
| | | | | | | | | | | We don't really *need* it in libosmocore as such, but the lack of having all osmocom extensions listed here lead to using overlapping definitions: 0x18 was used for dynamic PDCH on the Abis side, but also for CBCH on the L1SAP side. Let's list them all here to increase visibility in case anyone wants to extend this further... Related: OS#4027 Change-Id: I93e557358cf1c1b622f77f906959df7ca6d5cb12
* protocol/gsm_12_21.h: fix copy-pasted struct descriptionVadim Yanitskiy2019-05-241-1/+1
| | | | Change-Id: Ic6d32c886f6f8f859e382d48f9e1b509000db9ba
* lapdm_rslms_recvmsg: Fix memory leak in error pathHarald Welte2019-05-191-1/+3
| | | | | | | | | | | | The caller of lapdm_rslms_recvmsg() (e.g. osmo-bts/src/common/rsl.c) assumes the message ownership is transferred. However, in one of the two error paths, msgb_free() was not called and hence we had a memory leak. Also clarify the msgb ownership transfer in a comment. Related: OS#3750 Change-Id: Id60cb45e50bfc89224d97df6c68fcd2949751895
* TLV: Add one-shot TLV encoderHarald Welte2019-05-195-0/+155
| | | | | | | | | | | | | | | | | So far, the TLV code contained two types of functions * tlp_parse() to parse all TLVs according to definition into tlvp_parsed * various helper functions to encode individual TLVs during message generation This patch implements the inverse of tlv_parse(): tlv_encode(), which takes a full 'struct tlv_pared' and encodes all IEs found in it. The order of IEs is in numerically ascending order of the tag. As many protocols have different IE/TLV ordering requirements, let's add a tlv_encode_ordered() function where the caller can specify the TLV ordering during the one-shot encode. Change-Id: I761a30bf20355a9f80a4a8e0c60b0b0f78515efe
* Cosmetic: GSUP: fix too long comment lineOliver Smith2019-05-191-2/+2
| | | | Change-Id: I60ba8fef8924e58bc73cff5c7ff77ebb76d8bfaa
* Deprecate usage of osmo_counter_*Daniel Willmann2019-05-191-2/+10
| | | | | | | There's not many of those around any more, let's try to move them to osmo_stat_items Change-Id: If67f64c6ec7a3f3114c962df9db50107d9ea86e2
* pseudotalloc: turn talloc_steal() into #defineHarald Welte2019-05-182-2/+3
| | | | | | | | | | | | | Any non-anciant version of talloc implements talloc_steal() as a #define using the _talloc_steal_loc() symbol. Let's be more compatible. This fix is relevant to using osmo_fsm inside the osmo-ccid-firmware builds for Cortex-M4. In this situation, for some strange reason, libosmcoore is compiled using src/pseudotalloc/talloc.h, but later then linked against the real libtalloc. Change-Id: I1ee7f5e9b1002cff37bb8341ad870e1da5f1f9ff
* Revert "Change GSM48_PDISC_* to enum type"Harald Welte2019-05-181-20/+18
| | | | | | | This reverts commit ece1d8509d5c5af7a60ab5e1a5dddade1b181dc9 which causes build failures due to compile warnings everywhere. Change-Id: Ic131439ea206a0b0f57968ef701667da73711b51
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