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* fix: vty crash by logging during VTY_CLOSED event handlingNeels Hofmeyr2019-08-301-3/+3
| | | | | | | | | | | | | | | | | | | | When a VTY closes, dispatch the VTY_CLOSED signal before tearing down the VTY buffer and fd. In particular this fixes: - a crash during telnet_close_client(), invoked by the VTY_CLOSED event, which logs to DLGLOBAL and uses vty->obuf that, so far, vty_close() had already unallocated earlier (OS#4164). - the logging about closing a telnet session so far logged: DLGLOBAL INFO Closing telnet connection r=NULL<->l=NULL By dispatching the VTY_CLOSED event while the fd is still valid, we instead get the actual connection IP address and port being closed: DLGLOBAL INFO Closing telnet connection r=127.0.0.1:36708<->l=127.0.0.1:4258 Related: OS#4164 Change-Id: I1d235cbfbfb9aaf411316642c7bcfac12106df44
* context: Add support for [per-thread] global talloc contextsHarald Welte2019-08-273-6/+88
| | | | | | | | | | Rather than having applications maintain their own talloc cotexts, let's offer some root talloc contexts in libosmocore. Let's also make them per thread right from the beginning. This will help some multi-threaded applications to use talloc in a thread-safe way. Change-Id: Iae39cd57274bf6753ecaf186f229e582b42662e3
* vty: Register logp cmd next to logging commandsPau Espin Pedrol2019-08-201-2/+3
| | | | | | | | This way it's easier by osmo_verify_transcript_vty.py to skip and avoid breaking existent test in osmo-hlr. Fixes: d0b3b9edac978c91bf84aa2537aa24426685b1fb Change-Id: Iab9423661e4f4eefca2e3d02b60a43f913ed92a3
* osmo_tdef_get(): allow passing -1 as default timeoutNeels Hofmeyr2019-08-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | The intention of osmo_tdef_get()'s val_if_not_present argument was to return a default timeout, or to optionally abort the program for missing timer definitions if the default timeout is < 0. This was the case in the original implementation of this API in osmo-bsc, but in the migration to libosmocore, the argument was by accident changed to an unsigned type. In consequence, the assertion in the implementation that was intended to abort the program seemed bogus to coverity, and was fixed by removal in I7a544d2d43b83135def296674f777e48fe5fd80a -- the wrong direction, as is obvious from the API doc for osmo_tdef_get(). Note that osmo-bsc master passes -1 in various places and expects the program-abort behavior that was missing from the libosmocore implementation. Change the val_if_not_present argument to a signed type, and revert removal of the assertion, so that passing -1 has the effect described in the API doc: program abort on missing timer definition. This bug was not detected because it is hard to write tests that expect a program abort to happen, hence no tests for this API feature exist. Related: OS#4152 Change-Id: Ie61c3c85069916336e6dbd91a2c16f7634816417
* add vty logp command to echo on all log targetsNeels Hofmeyr2019-08-131-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | When reading SUT logs resulting from TTCN3 runs, it can be hard to figure out which log section corresponds to which test code. Add a 'logp' command on VIEW and ENABLE nodes that simply echos an arbitrary message on log output, useful to set markers / explanations from the TTCN3 code, which then appear in all log outputs and can make it trivial to figure out which log section is interesting. logging_vty_test# logp lglobal notice This is the log message DLGLOBAL NOTICE This is the log message From TTCN3, could be used like this, e.g. in BSC_Tests.ttcn: private function f_logp(charstring log_msg) runs on MSC_ConnHdlr { // log on TTCN3 log output log(log_msg); // log in stderr log f_vty_transceive(BSCVTY, "logp lglobal notice " & log_msg); } ... f_logp("f_probe_for_handover(" & log_label & "): Ending the test: Handover Failure stops the procedure."); Change-Id: Ife5dc8999174c74e0d133729284fe526d6eaf8d9
* codec/ecu_fr: Mark input TCH frame as 'const' as we only read itHarald Welte2019-08-121-1/+1
| | | | Change-Id: I64c6d3dc08ff87b673ba6225f98546e86f91bcfd
* Bump version: 1.1.0.107-afce-dirty → 1.2.0Pau Espin Pedrol2019-08-066-7/+8
| | | | Change-Id: I05dd1f2725e05f856f1d27c9201a0005de101b8f
* osmo-release.sh: Drop whitespace after = when parsing LIBVERSIONPau Espin Pedrol2019-08-061-1/+1
| | | | | | | | | | As a result whitespace ended up in some variables and then command "expr" was not happy about it. It was spotted because src/coding/Makefile.am had some whitespacing. Since it's the only one, let's drop the whitespace there too to have similar line in all Makefile.am files. Change-Id: I33afef5e4ef9eb36de81274533f46598ba9a0edb
* Get rid of osmo_str_tolower() use inside libosmocore codePau Espin Pedrol2019-08-021-11/+13
| | | | | | | | | | | There's no real good reason for using that function (static buffer) instead of osmo_str_tolower_buf(local buffer), so let's use the later. In any case, we get rid of TLS variables in those places, which is a performance improvement. It will also allow later shrinking of those buffers if we decide to define maximum logging category and level name length. Change-Id: I2e99de1142020e4d80ef0a094e4e751f7903f5f9
* utils: share static buffer in osmo_str_to{lower,upper}()Pau Espin Pedrol2019-08-021-8/+8
| | | | | | | | | | | This way we get rid of extra 128 bytes in memory per thread created. It makes sense to share the buffer since it's same size and it doesn't make much sense to be using both osmo_str_tolower and osmo_strtoupper at the same time (usually you either want to move everything to uppercase or everything to lowerase). In required scenarios, one can still use the _buf versions. Change-Id: I032803faa0e27c2efdff1ff276acabab95a8319a
* pseudotalloc: Simplistic wrapper of talloc_named()Harald Welte2019-07-312-0/+6
| | | | | | | | The pseudotalloc layer doesn't yet support talloc_named() API which will be used by the upcoming "context" change. Let's add this function to pseudotalloc.c for our arm-non-eabi builds. Change-Id: I4d91ebd73a3357a17ef9143a1b41b90186d4c128
* avoid gcc format error on embedded buildsHarald Welte2019-07-311-1/+1
| | | | | | | | | | | | | when using gcc 8.3.0 on Debian unstable and doing an embedded build, I'm getting the following error: > fsm.c:621:40: error: format '%ld' expects argument of type > 'long int', but argument 6 has type 'time_t {aka long long int}' > [-Werror=format=] Let's avoid that... Change-Id: I92fb9b08def8475739f0dc6316de43b166f48ac3
* vty/vty.c: the command buffer can be accessed directlyVadim Yanitskiy2019-07-301-7/+7
| | | | Change-Id: Ic6d7d68e9a559a6fb5bd6eaf6eccceae51e7ed39
* vty/vty.c: fix vty_read(): prevent further heap-buffer overrunVadim Yanitskiy2019-07-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After reading data from the socket, assigned to a given VTY, we need to '\0'-terminate the received string. Otherwise, further access to that string, stored in a heap buffer vty->buf, would lead to a heap overrun. == How to reproduce? $ python -c "print 'A' * 512" | telnet $HOST $PORT ==21264==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6190000211e0 at pc 0x000000435d2f bp 0x7ffc06c7add0 sp 0x7ffc06c7a578 READ of size 1025 at 0x6190000211e0 thread T0 #0 0x435d2e in __interceptor_strlen (/usr/local/bin/osmo-msc+0x435d2e) #1 0x7fb95bfa5624 in talloc_strdup (/usr/lib/x86_64-linux-gnu/libtalloc.so.2+0x6624) #2 0x7fb95c1be2bc in vty_hist_add /opt/osmocom/libosmocore/src/vty/vty.c:578 #3 0x7fb95c1be2bc in vty_execute /opt/osmocom/libosmocore/src/vty/vty.c:703 #4 0x7fb95c1be2bc in vty_read /opt/osmocom/libosmocore/src/vty/vty.c:1425 #5 0x7fb95c1bfd78 in client_data /opt/osmocom/libosmocore/src/vty/telnet_interface.c:157 #6 0x7fb95b90bd33 in osmo_fd_disp_fds /opt/osmocom/libosmocore/src/select.c:223 #7 0x7fb95b90bd33 in osmo_select_main /opt/osmocom/libosmocore/src/select.c:263 #8 0x5006cc in main /opt/osmocom/osmo-msc/src/osmo-msc/msc_main.c:723:3 #9 0x7fb959935f44 in __libc_start_main /build/eglibc-xkFqqE/eglibc-2.19/csu/libc-start.c:287 #10 0x4226fb in _start (/usr/local/bin/osmo-msc+0x4226fb) == Why exactly 512? Because the initial size of the heap buffer is 512 (see VTY_BUFSIZ). Later on it can be realloc()ated, so X > 512 should also work. Found using AddressSanitizer and Radamsa [1] fuzzer. [1] https://gitlab.com/akihe/radamsa Change-Id: I82f774ad18d0e555eb8f3590a519946d9c583c78
* vty/telnet_interface.c: log connection accept() / close() eventsVadim Yanitskiy2019-07-301-0/+12
| | | | | | | | | | | | | | Unfortunately, osmo_sock_get_name_buf() fails in telnet_close_client(): DLGLOBAL INFO telnet_interface.c:130 Closing telnet connection <error-in-getsockname> because getsockname(), getpeername(), and even close() fail with: "Bad file descriptor". This looks like a bug of the existing code. Change-Id: I77b31abfa159d2f269deaa5a08d94b7bbba7d23c
* vty/logging_vty.c: fix writing of 'print category-hex'Vadim Yanitskiy2019-07-301-0/+2
| | | | Change-Id: I33837f0fac1afe83596fa600916abc05ecb8c356
* vty/telnet_interface.c: avoid unneeded initializationVadim Yanitskiy2019-07-271-1/+1
| | | | | | | | Unconditional initialization follows the structure definition, so there is no need to do it twice. This prevents compiler from warning about potential errors. Change-Id: If9fd2826f132dfa203dda62940d93dbdfcfd92ac
* vty/telnet_interface.c: use DLGLOBAL logging sub-systemVadim Yanitskiy2019-07-271-2/+2
| | | | Change-Id: I1564f4714a33d36792e4982deb8f19d1b740dc0c
* gsm/gsm48.h: drop meaningless 'const' from gsm48_mi_to_string()Vadim Yanitskiy2019-07-261-2/+1
| | | | Change-Id: I5eb17edadf89ac47b4ca86c9e822037f7c0e518e
* stats_vty: Add verb to sentence for show asciidoc countersDaniel Willmann2019-07-251-1/+1
| | | | Change-Id: Ib444383d2074ddb89b3fe5bbf198bcbfabd7057f
* tell ubsan to ignore SUN_LENEric Wild2019-07-211-0/+3
| | | | | | | | | | | | | ubsan will report undefined behavior due to the SUN_LEN macros interaction with a null pointer, so let's tell ubsan to ignore this function. After carefully reviewing the final publically availlable drafts of the C99,C11 and C18 standards I can confirm that dereferencing null pointers is still undefined behavior, as such ubsan will always warn with absolutely every existing compiler version. Since the sanitizers are periodically synced between llvm and gcc I'm also fairly confident that rebuilding everything with compiler_rt to use the integrated sanitizers would result in the same message. I sincerly hope that this explanation provides to be sufficient, If not I'd be willing to show up at the next llvm dev meeting to provide quotes from actual sanitizer developers to back up these claims. Change-Id: I0ff445072f1b46390c9f70b21d61c789e39358d5
* gsm/gsm0480.c: use DLGLOBAL and LOGL_ERROR for loggingVadim Yanitskiy2019-07-211-13/+13
| | | | Change-Id: Id38272ff93fae6d2fdf39df4ffc74856d6c9a898
* gsm/gsm0480.c: parse_ss(): drop needless debug printVadim Yanitskiy2019-07-211-2/+0
| | | | Change-Id: Ie18c291d0cfe3b246d09ac6cfd9591951a2984c8
* osmo_get_rand_id(): Avoid dead code by proper #if/#else/#endifHarald Welte2019-07-211-1/+2
| | | | | Change-Id: I34e465dead179487f7d4508e0e6ecf0e838c6eb7 Closes: CID#177910
* tdef: remove bogus OSMO_ASSERT(unsigned long >= 0)Harald Welte2019-07-211-1/+0
| | | | | Change-Id: I7a544d2d43b83135def296674f777e48fe5fd80a Closes: CID#190866
* cbsp.c: Remove dead codeHarald Welte2019-07-211-3/+1
| | | | | Change-Id: I0888fbad0f9094ec1b31e2cceecfc9cd372399bd Closes: CID#202057
* cbsp: Introduce osmo_cbsp_errstrHarald Welte2019-07-202-28/+100
| | | | | | | | | | | | | | Rather than having the encoder/decoder library print some log messages in case of encoding/decoding errors, let's provide something akin to 'errno', but with a string instead of a numeric error code. The 'osmo_cbsp_errstr' global variable (if set) contains a human-readable string describing the most recent encoding/decoding error. It exists separately for each thread and hence can be used safely in multi-threaded environments. Change-Id: Id9a5a595a76ba278647aee9470ded213d8464103
* CBSP (Cell Broadcast Service Protocol; 3GPP TS 48.049) supportHarald Welte2019-07-204-1/+1532
| | | | | | | | | | This introduces definitions as well as a parser+encoder for the Cell Broadcast Service Protocol (CBSP) as specified in 3GPP TS 48.049. CBSP is used on the interface between CBC and BSC. Related: OS#3537 Change-Id: I5b7ae08f67e415967b60ac4b824db9e22ca00935
* bitvec/bitval2mask(): cosmetic: get rid of temporary int variableVadim Yanitskiy2019-07-181-11/+4
| | | | Change-Id: I9d6f6b66c99c43107d1ad3e80af332e967bb19e8
* osmo_gsm48_rest_octets_si3_decode(): fix copy-paste error in commentVadim Yanitskiy2019-07-181-1/+1
| | | | Change-Id: I57a330e16cc2910597672e1b27cf971499cea5bc
* utils.h: require a semi colon after OSMO_ASSERTAlexander Couzens2019-07-081-3/+3
| | | | | | | | | When using `OSMO_ASSERT(exp);` clang will warn about an empty expression because the semi colon was superflous. Use do {} while (0) to enfore the need of a semi colon. This might break other test. Change-Id: I2272d29a81496164bebd1696a694383a28a86434
* vty: Simplify char escaping in asciidoc outputPau Espin Pedrol2019-06-251-9/+4
| | | | Change-Id: I7df6858bb98abffc1d5bf420f991ae5854b24638
* gsm: lapd_core: Log timeout used upon start of T200Pau Espin Pedrol2019-06-211-1/+2
| | | | | | | | The timeout is calculated dynamically in t200_by_lchan() based on FN advance value estimated by bts_get_avg_fn_advance(), so it's informative to have the final value printed out. Change-Id: Ib50a9c23de881c66c9218833703cc41101e06bfd
* vty: Remove trailing whitespace in output from show asciidocPau Espin Pedrol2019-06-191-2/+2
| | | | Change-Id: Ifb3115c7488fbcf082cc9b92abc25cf7c46064e0
* bitvec: correct comment in bitvec_allocAlexander Couzens2019-06-171-1/+1
| | | | | | The function allocates x bytes not bits for the vector. Change-Id: I60fbe9fe9acd11c5d3232207f1bb677e8a98625f
* Revert "fsm.c: Print error message for FSM with allstate_action but no events"Vadim Yanitskiy2019-06-161-11/+0
| | | | | | | | | This reverts commit b3f94eb39e19366c3458643ee329a73155d46ff8, that unfortunately breaks some projects which call osmo_fsm_register() on DSO load (i.e. using __attribute__((constructor))) before the logging is initialized. Change-Id: Idc6fcce7e946c23d48589b920e309d60aa7b6645
* fsm.c: Print error message for FSM with allstate_action but no eventsHarald Welte2019-06-151-0/+11
| | | | | | | | | | As suggested by Vadim while reviewing a related fix for ipa_keepalive.c in libosmo-abis (see https://gerrit.osmocom.org/#/c/libosmo-abis/+/13540/), it makes sense to print an error message if anyone registers a FSM that specifies an allstate_action callback but at the same time no events that would ever end up in that callback. Change-Id: I9e73f7363ab15a00843e3f0d1e5776f4be7ebc46
* vty: command.c: Fix: single-choice optional args are no longer passed ↵Pau Espin Pedrol2019-06-141-5/+14
| | | | | | | | | | | incomplete to vty func For instance, take command "single0 [one]": If user executes "single0 on", VTY func will receive argv[0]="one" instead of argv[0]="on". Related: OS#4045 Change-Id: I5f4e2d16c62a2d22717989c6acc77450957168cb
* vty: command.c: Fix: multi-choice args are no longer passed incomplete to ↵Pau Espin Pedrol2019-06-141-7/+44
| | | | | | | | | | | 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: 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
* logging: Check return error from time() callPau Espin Pedrol2019-06-131-1/+2
| | | | | Related: OS#4055 Change-Id: Ief155a76169426a677256e09d3e91751c4e2529f
* 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
* core/utils: drop meaningless const from return value of osmo_luhn()Vadim Yanitskiy2019-06-121-1/+1
| | | | Change-Id: I085da06f31a0a6862ae2ba041fafc134cc240f7e
* vty: command.c: Fix is_cmd_ambiguous() returning always 0Pau Espin Pedrol2019-06-111-5/+5
| | | | | | | | | | 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 Smith2019-06-071-3/+13
| | | | | | | | | | | | | 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
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