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* select: add functionality to check socket statePhilipp Maier2017-02-071-6/+24
| | | | | | | | | | | | osmo_fd_register() is used to register socket file descriptors, after registering a socket, there is no way to test if the socket is still registered or actually registered at all. This commit adds a new function osmo_fd_register_check() that can be used to check in advance, if the socket fd is registered, before performing further operations. Change-Id: I48ec7098d6bba586c81bf0d5c9088108e2c081c6
* osmo_auth*: fix ordering of function argsNeels Hofmeyr2017-02-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | milenage_gen_vec() has parameter ordering of (..., auts, rand_auts, rand). osmo_auth_gen_vec_auts() has (..., rand_auts, auts, rand), but actually feeds args in the same order, so that its rand_auts becomes auts, and its auts becomes rand_auts. Interestingly enough, API user osmo-gen-vec.c also adheres to this misordering and in turn passes auts for osmo_auth_gen_vec_auts()'s rand_auts and vice versa, so that it matches milenage_gen_vec(). So both the implementation (milenage_*) and the API user use the same ordering, just osmo_auth_gen_vec_auts() and osmo_auth_impl{ .gen_vec_auts() } in-between have the argument names swapped. Any current user of this API would need to adhere to this swapping or will not get successful AUTS resolution to a SQN. So the least impact fix is to rename the args without any actual functional change. So swap the names rand_auts and auts for osmo_auth_gen_vec_auts() and osmo_auth_impl{ .gen_vec_auts() }. (Also adjust API doc ordering) Change-Id: I0dcbd49759fc32d3b8974102dbd1d6703364ebf4
* lapd_core: Improve debug outputPhilipp Maier2017-02-031-144/+190
| | | | | | | | | The debug output of lapd core has no references to the dl objects, since we have multiple links, seeing which action is for which object is impossible. This commit adds pointer references (dl=%p) to each log line. Change-Id: I3024d1cbd58631e2abac4ce5822528e2e6e15fda
* GSUP, OAP, osmo-gen-vec: fix AUTS length to 14, not 16Neels Hofmeyr2017-02-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | GSUP transmits AUTS for UMTS authentication procedures, and OAP uses the same procedures to authenticate. osmo-gen-vec is a utility program that passes AUTS to our osmo_auth_gen_vec_auts() API. According to 3GPP 33.102 6.3.3, AUTS = SQN^AK || MAC-S, which are 6 || 8 == 14 bytes. This is confirmed by 24.008 9.2.3a where the TLV has 16 bytes, TL = 2 and AUTS being the V = 14. It is not harmful for milenage_gen_vec_auts() to pass two more AUTS bytes. But writing 16 bytes to a GSUP struct is a potential problem when passing in a 14 byte long AUTS buffer to the GSUP API, which then reads past the AUTS buffer. The API implies the length, so far to be 16, so passing in a 14 byte buffer to GSUP would require copying to a larger buffer first. Fix this by using a length of 14 for AUTS everywhere instead. This constitues an ABI breakage, we may handle it as a "fix before an official release", otherwise we need a version bump. The OAP protocol document has also been updated, needs an update in the osmo-gsm-manuals as well. Change-Id: If25b173d9ec57ea4c504d860954912b7d82af455
* socket: Introduce function to obtain socket nameHarald Welte2017-01-271-1/+43
| | | | | | | Using this function, one can obtain a human-readable string identifying the host and port names of the socket. Change-Id: Ib5de5c7b9effe1b0a363e4473a7be7fa38ca6ef3
* OML: add external alertsMax2017-01-251-0/+1
| | | | | | | Add special cause for alerts produced by external processes. Change-Id: Idd7ee085321f8172c72ecfdba320186049f4d988 Related: OS#1615
* sim: Link to libtalloc as symbols of it are used hereHolger Hans Peter Freyther2017-01-241-0/+1
| | | | | | | | | | | | A DSO should link to the libraries that it is using. Linking to libtalloc will resolve these warnings: Change-Id: I4c8d5e80e194b9d9b4fa2424c4a22377ecee9c7a dpkg-shlibdeps: warning: symbol _talloc_zero used by debian/libosmosim0/usr/lib/i386-linux-gnu/libosmosim.so.0.0.0 found in none of the libraries dpkg-shlibdeps: warning: symbol _talloc_free used by debian/libosmosim0/usr/lib/i386-linux-gnu/libosmosim.so.0.0.0 found in none of the libraries dpkg-shlibdeps: warning: symbol talloc_strndup used by debian/libosmosim0/usr/lib/i386-linux-gnu/libosmosim.so.0.0.0 found in none of the libraries dpkg-shlibdeps: warning: symbol talloc_strdup used by debian/libosmosim0/usr/lib/i386-linux-gnu/libosmosim.so.0.0.0 found in none of the libraries dpkg-shlibdeps: warning: symbol _talloc_memdup used by debian/libosmosim0/usr/lib/i386-linux-gnu/libosmosim.so.0.0.0 found in none of the libraries
* ipa: Remove unneeded #include statementHarald Welte2017-01-231-1/+0
| | | | Change-Id: I69f2891a2bea6f87f079b6778aa01ee27a25001b
* disable various code if building for bare-iron embeddedHarald Welte2017-01-232-0/+12
| | | | | | | We don't have file-based I/O nor ethernet devices with mac addresses when building for OsmocomBB. Change-Id: I01a9e6d8dbe885dbeac2769b84931a4d44f7a3a5
* Add abis_nm_fail_evt_vrep to libosmogsm.mapMax2017-01-191-0/+1
| | | | Change-Id: If56b521429af497ddd5a47170eb2c085b1fb78ba
* doc: fix doxygen 'utils' group closing braceNeels Hofmeyr2017-01-181-1/+2
| | | | | | | osmo_strlcpy() was excluded from the group because the closing brace was above it. Change-Id: I6701261f5854342ac4cd4f2da62e49eb40362938
* libosmogsm.map: fix typoMax2017-01-171-1/+1
| | | | | Change-Id: I71413fbe703e459782a235e5b1d8487265de3780 Related: OS#1615
* Mark deprecated function as suchMax2017-01-161-0/+1
| | | | | | | Mark abis_nm_debugp_foh() function superseded by macro with the same name as deprecated. Change-Id: I2d3ea2b56aff6b687f72f832360b8cb8a24164e9
* doc: clarify osmo_strlcpy() docNeels Hofmeyr2017-01-151-5/+5
| | | | | | | Stating that it 'truncates src' is misleading. Also clarify whether siz includes the space needed for the terminating NUL. Change-Id: I01c1a94408b471f7f54576178a60938bf9ee3261
* Always include <osmocom/core/talloc.h> and not <talloc.h>Harald Welte2017-01-151-1/+1
| | | | | | In EMBEDDED builds we don't have a system-wide talloc Change-Id: Icc526016bda45b36e584afee8669996752d6d89c
* configure.ac: Introduce --disable-ctrlHarald Welte2017-01-151-0/+3
| | | | | | | | Using --disable-ctrl, one can disable the building of libosmoctrl. The 'embedded' target will also automaticall disable ctrl. Change-Id: I6912396338c5b23ae860fef2a55854d6df9a579d
* Fix compilation warnings: missing includes: gsm0411_utils.c, lapd_core.c, ↵Max2017-01-132-0/+2
| | | | | | oap_test.c Change-Id: Id524327b3f44e22e3aa44c5e8e4965b084cb326a
* gprs_ns_vty: guard against duplicate VTY elementsNeels Hofmeyr2017-01-121-0/+8
| | | | | | | | The TbfTest in osmo-pcu calls gprs_ns_vty_init() repeatedly, which aborts because of duplicate VTY elements. Fix this by skipping the VTY init if it already happened. Change-Id: I05c7f25a4e873ae76b206819180b8b043b60103e
* Add abis_nm_fail_evt_vrep() functionMax2017-01-111-4/+17
| | | | | | | | | It accept fixed number of arguments including va_list instead of variable number of arguments in abis_nm_fail_evt_rep() - similar to vprintff() vs printf(). Related: OS#1615 Change-Id: Ib293dec1c2de9b664584a8456c782ea7b6dd8555
* LAPD: improve loggingMax2017-01-101-4/+6
| | | | | | Log error cause and state names in case of SABM errors. Change-Id: I2c7fa276e03f8b14ba41cc1fb6e19d0aae77d127
* DTX: fix AMR SID-FIRST detectionJean-Francois Dionne2017-01-101-2/+2
| | | | | | | Max's note: adjusted test output. Change-Id: I46477c631bf86345cb757f31d7f2e2935b12adcc Related: OS#1801
* Add value strings for Probable Cause TypeMax2017-01-102-0/+8
| | | | | | | | Add string representation of Probable Cause Type from 3GPP TS 12.21 § 9.4.43. Change-Id: I9fe14ed3b5398f59dd06a509e4d419e074cc20a7 Related: OS#1615
* fsm: Add VTY introspection of osmo_fsm and their instancesHarald Welte2017-01-073-4/+181
| | | | Change-Id: I89212e4f149f019099115a85bab353c04170df90
* Add osmo_fsm_find_by_name() and avoid registering FSM with same nameHarald Welte2017-01-071-1/+13
| | | | | | | This addresses a FIXME in the fsm.c code: osmo_fsm_register() should fail in case a FSM with the given name already exists. Change-Id: I5fd882939859c79581eba70c14cbafd64560b583
* vty: OSMO_ASSERT() if two identical commands are installedHarald Welte2017-01-071-0/+19
| | | | | | | | | When the caller installs two identical commands at a given VTY node, the result is that neither of the two commands can ever be executed: The VTY would always complain about "Ambiguous command.". Let's fail fast at program start when two identical commands are intalled. Change-Id: I85ff4640ebb3d8b75a6a9ab5d2f668edb5b7189e
* Add OML Failure Event Report supportMax2017-01-062-0/+39
| | | | | | | | Add 3GPP TS 12.21 § 8.8.2 Failure Event Report function which pack given vararg string and parameters into msgb. Change-Id: I58c198d8ea588432c62520928b08f0b2a7035e93 Related: OS#1615
* Add event cause string descriptionsMax2017-01-062-0/+16
| | | | | | | | Add human-readable descriptions to event causes from 3GPP TS 12.21 § 9.4.43. Change-Id: Id173c978616c98b7831fbafb5401064257f1cf73 Related: OS#1615
* Add function to get uninterrupted bit runPravin Kumarvel2017-01-061-0/+45
| | | | | | | | | Function bitvec_rl_curbit added to get number of uninterrupted bits run in vector starting from the current bit till max number of bits. Test case is added to check bitvec_rl_curbit. Change-Id: Iae153d3639ea6b891c1fc10d7801a435c9492e26
* Add parsed TLV helpers from OsmoBTSMax2017-01-062-0/+62
| | | | | | Add functions to copy and merge parsed TLV structures from OsmoBTS. Change-Id: Ieaaaed19da9c069fe451faa53d24c5b84d7d5615
* Add OML definitions from OsmoBTSMax2017-01-062-0/+62
| | | | | Change-Id: I9c3bc15662949654e7bba6aad5488c69ee7d0c45 Related: OS#1615
* Remove direct loggingMax2017-01-061-3/+0
| | | | | | | | Drop perror() calls from GSMTAP code: it's application job to do the proper logging - library code should not write to stdout/stderr directly. Change-Id: Ifa149e65d76c6e64fda2946725c16672233aff2e
* gprs_cipher_core: Use typecase to avoid sanitizer errorHarald Welte2017-01-061-1/+1
| | | | | | | This resolves gprs_cipher_core.c:118:37: runtime error: left shift of 1 by 31 places cannot be represented in type 'int' Change-Id: Ib1866595030ad9d11c886621ce69632462befa3a
* fsm: term: get parent pointer as late as possibleNeels Hofmeyr2016-12-241-1/+4
| | | | | | | | | | | | During FSM instance termination, fetch the parent pointer every time just before using it, in case the child termination or cleanup callback wish to change anything about the parent, e.g. to prevent event dispatch. This patch was created to try and fix a problem that was in the end solved differently. There is no actual need or use case for this at the moment, but it generally makes sense to get the parent pointer as late as possible. Change-Id: I999d7f29ba10281d4005c5163130bb2d80148362
* fsm: factor out osmo_fsm_inst_term_children() from osmo_fsm_inst_term()Neels Hofmeyr2016-12-241-20/+42
| | | | | | | | | | | | | | | | | | | | osmo_fsm_inst_term() has code for safe child removal, publish that part as osmo_fsm_inst_term_children(); also use from osmo_fsm_inst_term(). As with osmo_fsm_inst_term(), add osmo_fsm_inst_term_children() macro to pass the caller's source file and line to new _osmo_fsm_inst_term_children(). Rationale: in openbsc's VLR, I want to discard child FSMs when certain events are handled. I could keep a pointer to each one, or simply iterate all children, making the code a lot simpler in some places. (Unfortunately, the patch may be displayed subobtimally. This really only moves the children-loop to a new function, replaces it with a call to _osmo_fsm_inst_term_children(fi, OSMO_FSM_TERM_PARENT, NULL, file, line) and drops two local iterator variables. No other code changes are made, even though the diff may show large removal + addition chunks) Change-Id: I8dac1206259cbd251660f793ad023aaa1dc705a2
* fsm: move LOGPFSMSRC and LOGPFSMLSRC to .hNeels Hofmeyr2016-12-241-13/+0
| | | | | | | | | | | LOGPFSM and LOGPFSML are in the header file, put the *SRC variants also there so users of the osmo_fsm_inst API may conveniently create own functions that log the caller's source file and line. Very useful if many action functions call the same event dispatching function, like foo_fsm_done(), and one needs to know which of the callers to debug. Change-Id: I39447b1d15237b28f88d8c5f08d82c764679dc80
* fsm: log calling file+line for error "event for NULL fi"Neels Hofmeyr2016-12-241-2/+3
| | | | Change-Id: I1970773440865f1415004bcf0164603468acf90b
* fsm: doc: add missing file, line args; fix ws + tweak on one lineNeels Hofmeyr2016-12-241-1/+7
| | | | Change-Id: I6af0d43ab0082e45df676c1d69b26310b59a8031
* serial.c: file descriptor '0' is a valid valueHarald Welte2016-12-241-2/+2
| | | | | | | if stdin/stdout/stderr are all closed by our environment, it may very well be that opening a serial port returns fd == 0. Change-Id: Ifd9670260883a35da0629369e0d49e467d5b4d72
* serial.c: Fix fd leak in case of fcntl() error pathsHarald Welte2016-12-241-2/+4
| | | | | Change-Id: I14f934957e1086b803f3a7b9b5e6d602380f0be2 Fixes: Coverity CID 158987
* serial.c: Some ports don't support TIOCMBIS for RTS/CTS controlHarald Welte2016-12-231-2/+2
| | | | | | So let's ignore the error we might get from this opreration. Change-Id: I69dad90403355b6512c3bf4c7fd10dd1dd985f01
* serial: Open devie in non-blocking mode and then switch to blockingHarald Welte2016-12-231-3/+17
| | | | | | | | There are some serial ports that apparently block during the open in some circumstances. We don't want that. We want to either open it immediately, or fail fast. Change-Id: I626b138574bc50f4f4b09c4d609f3623ff512dff
* add CRC16-CCITT to libosmocoreHarald Welte2016-12-231-0/+42
| | | | | | Use the implementation from Linux lib/crc-ccitt.c (GPLv2) Change-Id: I26bb54038f5ab36bbb34da7f5fb8ae6c0c0386a4
* Fix erroneously AGPL licensed file in libosmocore.Harald Welte2016-12-221-4/+4
| | | | | | | libosmocore itself is GPLv2-or-later. Only the test cases are permitted to be AGPL licensed. Change-Id: I62f2eed6305bfa11a64c6d633e08aabeaf9f0b10
* fsm: log tweak: upon free, say 'Freeing instance'Neels Hofmeyr2016-12-211-1/+1
| | | | | | | | Logging 'Release' is a bit ambiguous. At first I tought a subscriber connection was being released, IMHO 'Freeing instance' better describes that we are freeing an osmo_fsm_inst. Change-Id: I5cf99707d2ba5620b2988f777fa39cc806ec0212
* doc: fix typo for osmo_hexparseNeels Hofmeyr2016-12-211-1/+1
| | | | Change-Id: Ifc2b499792fda378c807c678b8e06630cb64d273
* utils.h: add OSMO_STRINGIFY and OSMO_VALUE_STRING macrosNeels Hofmeyr2016-12-211-7/+5
| | | | | | | | | | | | | | OSMO_STRINGIFY particularly allows putting port numbers from a #define into VTY doc strings, like: #define FOO_PORT 2342 DEFUN(..., "Foo UDP port (default: " OSMO_STRINGIFY(FOO_PORT) ")\n") OSMO_VALUE_STRING creates value_string items with the string being exactly the enum value's name. Replaces a similar macro def in fsm.c Change-Id: I857af45ae602bb9a647ba26cf8b0d1b23403b54c
* Catch-up with git version tagsMax2016-12-216-8/+14
| | | | | | | | | | | | * update debian/changelog * update TODO-RELEASE * add comments to Makefile.am and TODO-RELEASE to simplify the process in future * add link to libtool docs to Makefile.am to simplify LIBVERSION maintenance Related: OS#1861 Change-Id: I22c257e357f597519120232d742d6a61289db021
* fsm: term: safer iteration to remove all child FSMsNeels Hofmeyr2016-12-201-4/+20
| | | | | | | | | | | | When terminating child FSMs, restart iteration after every child, to make sure that we don't terminate a child twice. Terminating one child may emit events that in turn terminates other children. I created this patch because at first it looked like the cause of a bug, which turned out not to be the case. So I have no actual use case of this situation, but it does generally make sense to me, so submitting this. Change-Id: I00990b47e42eeb43707a9a42abcd9df52fe5f483
* fsm: explicitly log removal from parent fsmNeels Hofmeyr2016-12-161-0/+3
| | | | | | | | | | | Since removing an FSM from its parent twice causes a segfault, it is very interesting to see when that is attempted. Removing could be made more robust, but logging is interesting for investigating why an FSM is being removed twice in the first place (currently the case in openbsc's vlr_lu_fsm). Change-Id: Idec6b7aa5344f1e903c9d2aa2a3640cab0d70fb0
* add value strings for enum osmo_fsm_term_cause and use for loggingNeels Hofmeyr2016-12-151-1/+13
| | | | Change-Id: Iaf63d3cadb0d46bf454e3314ebb439240cafd834
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