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* add gsm48_pdisc_msgtype_name()Neels Hofmeyr2017-03-161-0/+5
| | | | | | | | | | | | | | | Composing the message type string requires knowing the protocol discriminator. To ease printing the message type, add this function to switch between the defined value_string[]s depending on pdisc. Also publish the message type value_string[]s -- without inline functions to access them because it is anyway more convenient to use gsm48_pdisc_msgtype_name() instead. Since gsm48_pdisc_msgtype_name() is nontrivial, do not add as inline function -- in case the message type is not known, it needs a static string buffer. Change-Id: I0fca8e95ed5c2148b1a7440eff3fc9c7583898df
* add gsm48_pdisc_names and gsm48_pdisc_name()Neels Hofmeyr2017-03-161-0/+4
| | | | | | | I often want to log the protocol discriminator in the openbsc debug log. It's more useful to get the name directly instead of looking it up every time. Change-Id: I0f053e2a4360b27ffccda7cf82469fb1b1cbb3ae
* fix OSMO_VALUE_STRING macro: don't use OSMO_STRINGIFY()Neels Hofmeyr2017-03-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | To be able to use OSMO_VALUE_STRING() on a #defined constant, don't use OSMO_STRINGIFY(): the second indirection resolves the #define to its value, so for example OSMO_VALUE_STRING(GSM48_PDISC_MM) would resolve to { 0x05, "0x05" } When using '#x' directly, this becomes the desired { 0x05, "GSM48_PDISC_MM" } With enum values as we've used until now, this problem does not appear, because enum values are not resolved by the preprocessor. Keep OSMO_STRINGIFY() because it is used directly in openbsc (composing FSM state names). Change-Id: I91ecfcef61be8cf73d59ea821cc4fd9d2ad5c9c7
* ctrl_type_vals: explicitly terminateNeels Hofmeyr2017-03-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use CTRL_TYPE_UNKNOWN as value_string[] terminator, use an explicit, more obvious { 0, NULL } termination. Set an explicit string for CTRL_TYPE_UNKNOWN. No other value_string[]s to date have such a "hidden" terminator. BTW, a { 0, "string" } item is not a terminator, only { 0, NULL } is, so we can set a string for CTRL_TYPE_UNKNOWN == 0. Also, having a string value for CTRL_TYPE_UNKNOWN is not harmful because all code paths explicitly check for the CTRL_TYPE_*s that are valid. Adjust the test expectation. From the ctrl_type_vals enum, remove the = 0, because it is implicitly 0 anyway. One motivation to press this fixup: I am trying to add a script that checks whether all value_string[]s are terminated to our jenkins jobs, and to find that this one is terminated, it would need to interpret the CTRL_TYPE_UNKNOWN constant, which would make things far more complex. At this point, all of the value_string[]s have an explicit termination, and I would like to enforce this from now on -- for readable code and to not spend more time on the validator. The patch adding ctrl_type_vals (Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28) was accepted by another reviewer before I could reconfirm my -1, so this is a fixup to enable the termination checking script patches. Related: I2bc93ab4781487e7685cfb63091a489cd126b1a8 (adds script to libosmocore) I7fe3678b524d602fc6aa14bc0ed06308df809a3e (uses in jenkins.sh) Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28 (adds ctrl_type_vals) Change-Id: Ia99f37464c7b36b587da2cc78f52c82725f02cbc
* linuxlist.h: add llist_first/last_entry macrosNeels Hofmeyr2017-03-151-0/+30
| | | | | | | | | | | Copy list_first_entry, list_first_entry_or_null and list_last_entry from current linux kernel's tools/include/linux/list.h and rename to llist_*. Slightly adjust API doc but stay as close to the source as possible. This can replace similar implementations in osmo-bts-octphy's l1_if.c, in openbsc's gtphub.c and in osmo-hlr's gsup_server.c. Change-Id: I4eac5be0c0b2cede04464c4c3a0873102d952453
* osmo_auth_gen_vec: UMTS auth: fix SQN as SEQ || INDNeels Hofmeyr2017-03-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | So far we incremented SQN by 1, which doesn't match the procedures described in 3GPP TS 33.102. An IND (index) denotes a non-significant part of SQN, and the significant SEQ part needs to be incremented. In OsmoHLR we furthermore want to use the "exception" suggested in annex C.3.4, so that each HLR's client has a fixed IND index. In other words, we will not assign IND cyclically, but keep IND unchanged per auth vector consumer. Add 'ind_bitlen' and 'ind' to the osmo_sub_auth_data.u.umts structure and increment SQN accordingly. Add a comment explaining the details. Because 'ind_bitlen' is still passed as zero, the milenage_test does not change its behavior, which is a feature I want to clearly show in this patch. The test will be expanded for the newly implemented SQN scheme in a subsequent patch. Adjust osmo-auc-gen.c to still show the right SQN and SQN.MS -- because it is passing ind_bitlen == 0, osmo-auc-gen can rely on single increments and know SQN.MS is sqn - 1. Note that osmo-auc-gen_test output remains unchanged. Related: OS#1968 Change-Id: Ibc97e1736a797ffcbf8c1f7d41c5c4518f4e41bf
* gsm_04_08: add _NUM_CHREQ_T to enumAlexander Couzens2017-03-141-0/+1
| | | | | | _NUM_CHREQ_T defines the last element of the enum Change-Id: Id67ba8de89dd6288e449197438e9e1c5d7f5a134
* gsm0408: add chreq_type for CHREQ_T_PDCH_ONE_PHASE and CHREQ_T_PDCH_TWO_PHASEAlexander Couzens2017-03-141-0/+2
| | | | | | | | | | The previous version of this commit got reverted to avoid a breakage in openbsc. The problem is openbsc use an array of chreq_type with a manual defined size. This array is using enums as index which breaks if any elements got added into the middle, because the size of the array can't hold elements greater or equal than the size. Change-Id: I6676105507fe4e5627f740dfe4c2770f766ad068
* libosmocoding: migrate transcoding routines from OsmoBTSVadim Yanitskiy2017-03-076-0/+215
| | | | | | | | | | | | | | | | | | | | | | | | | There are some projects, such as GR-GSM and OsmocomBB, which would benefit from using one shared implementation of GSM 05.03 code. So, this commit introduces a new sub-library called libosmocoding, which (for now) provides GSM, GPRS and EDGE transcoding routines, migrated from OsmoBTS. The original GSM 05.03 code from OsmoBTS was relicensed under GPLv2-or-later with permission of copyright holders (Andreas Eversberg, Alexander Chemeris and Tom Tsou). The following data types are currently supported: - xCCH - PDTCH (CS 1-4 and MCS 1-9) - TCH/FR - TCH/HR - TCH/AFS - RCH/AHS - RACH - SCH Change-Id: I0c3256b87686d878e4e716d12393cad5924fdfa1
* gsm0503.h: generate header automaticallyVadim Yanitskiy2017-03-062-174/+6
| | | | | | | Since we have automatic header generation, implemented in the utils/conv_gen.py, it's time to use this feature! Change-Id: I21caa4e433b2cc1861611e35350a9671da444c2a
* fsm: convenience: add inline osmo_fsm_inst_state_name()Neels Hofmeyr2017-03-011-0/+4
| | | | Change-Id: If9a6ecc4d6e2beaf716569e9a6053d73488e860b
* Use value_string for ctrl_typeMax2017-03-011-2/+4
| | | | | | | | Use value_string for enum ctrl_type instead of custom code. Add corresponding unit tests. Related: OS#1615 Change-Id: Icd4e96dd9f00876cb70b43cfcf42ab4f10311b28
* ports.h: rename CSCN to MSCNeels Hofmeyr2017-02-242-2/+2
| | | | | | See OS#1958 Change-Id: I85aee0f8fdfc9c69d0ba9240988c633d3e707f2d
* Expand and expose ctrl connection allocationMax2017-02-231-1/+1
| | | | | | | | | | | | Add function for allocating CTRL connection to public headers and replace call to previous static function with it. Add doxygen docs for this function. It's useful if we need to allocate ctrl connection but don't need to bind to any interfaces: when we act as ctrl client. Related: OS#1615 Change-Id: I522ed809cbebfd3d7dd08b4ed9137b39ff192e32
* logging.h: fixup: shorter names for LOGGING_FILTER_* and LOGGING_CTX_*Neels Hofmeyr2017-02-231-16/+18
| | | | | | | | | | | | | | | My recent logging patch was merged to master a bit too soon. Accomodate the request for naming that matches the general "LOG" prefix instead of "LOGGING". libosmocore will not be backwards-compatible with the few commits from change-id I5c343630020f4b108099696fd96c2111614c8067 up to this one. This and following commits are backwards compatible with those before that short window. See also: * openbsc change-id Ib2ec5e4884aa90f48051ee2f832af557aa525991 * osmo-pcu change-id I4db4a668f2be07f3d55f848d38d1b490d8a7a685 Change-Id: I424fe3f12ea620338902b2bb8230544bde3f1a93
* logging.h: fixup: add API doc for logging enums recently addedNeels Hofmeyr2017-02-231-0/+5
| | | | Change-Id: Ic459b04219abe70171c8f80ed09df53d412dcfb2
* logging.h: fix backwards compat broken by recent commitNeels Hofmeyr2017-02-231-0/+7
| | | | | | | | | | | | | | Commit 812ba6dc63a75c39678dd3fe652768e76bf63183 "logging: centrally define ctx and filter indexes" Removed definitions, which causes older e.g. openbsc and osmo-pcu code trees to fail to build against a newer libosmocore. Re-introduce the legacy definitions to redirect to the new ones and re-establish backwards compatibility. The GPRS_* constants used to be defined in gprs_msgb.h, but since that header also includes logging.h, rather place the legacy shims in logging.h next to the other ones. Change-Id: I455bb1bb474d758af0fd5b6397f7e57260ad739d
* gsm_04_08.h: add R99 MSCR and CBQ3 to SI3 Ctrl Chan DescrNeels Hofmeyr2017-02-231-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | MSCR and CBQ3 are Release 1999 additions to the Control Channel Description IE of SI3. Assuming that no-one is using the spare bits, this will not cause any code conflicts. In the R99 struct, spare1 and spare2 are in different places, so rather rename them to spare_1 and spare_2 to make sure we get a compiler barf *if* anyone tries to use them with the wrong structure. Adjust the spec reference to TS 44.018; TS 04.08 Figure 10.5.33 is replaced by TS 44.018 Figure 10.5.2.11.1 which is right there in the named Section 10.5.2.11, so drop the explicit reference. Motivation: the R99 Control Channel Description defines MSCR to indicate whether the MSC is R99+ or not. To use UMTS AKA on GSM networks, we want to indicate that our libmsc is capable of R99, like OsmoSGSN already does. CBQ3 is merely added for completeness, no particular use case in mind. Related: OS#1593 Change-Id: If87e07b5d04e1617155383e14c98d2125fdd0608
* logging: centrally define ctx and filter indexesNeels Hofmeyr2017-02-222-6/+17
| | | | | | | | | | | | | | | | | | | | | | | It is too easy for calling code to use the same filter and context indexes for different filters and structs. For example, openbsc's IMSI filter and libgb's GPRS_BVC filter both fall on index 1 even though there are plenty more indexes to choose from. To alleviate this, have one central definition here, sort of like ports.h does for VTY and CTRL port numbers. Add static asserts to make sure the indexes fit in the available array and bit mask space. Calling code like openbsc.git and osmo-pcu need adjustments and/or should move to using these enum values instead of their local definitions. Taking this opportunity to also prepare for a split of struct gsm_subscriber in openbsc into bsc_subsciber and vlr_subscriber with appropriate separate filter index constants for both subscriber types. Include previous LOG_FILTER_ALL in the LOGGING_FILTER_* enum, and replace its use by (1 << LOGGING_FILTER_ALL). Change-Id: I5c343630020f4b108099696fd96c2111614c8067
* gsup: add osmo_gsup_message_type_name()Neels Hofmeyr2017-02-151-0/+5
| | | | Change-Id: Ic29b588b72893821d73fe90ecc16c6bf78d5a360
* Add CTRL port for OsmoHLRMax2017-02-141-0/+1
| | | | | Change-Id: I1328c89ec8e908bf4b4d2c0a398690278369e0f5 Related: OS#1645
* select: add functionality to check socket statePhilipp Maier2017-02-071-0/+2
| | | | | | | | | | | | 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 Hofmeyr2017-02-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | 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
* gsm48: add UMTS AKA res+sync IEIs, msg type and cause valNeels Hofmeyr2017-02-021-0/+4
| | | | | | According to 3GPP TS 24.008 9.2.3a, 9.2.3, 10.5.3.6 Change-Id: I745061ce8eb88aa23080dadcdbfe2d703c362a30
* 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
* comment: ports.h: more visibly remind to keep docs+wiki syncedNeels Hofmeyr2017-01-302-0/+2
| | | | | | | It is still too easy to forget syncing, so add another reminder at the end of the list. Change-Id: I95191906afa8e6ada31310d0e36de33e3fccf268
* vty/ports.h: reserve port 4258 for OsmoHLR VTYNeels Hofmeyr2017-01-281-0/+1
| | | | Change-Id: I08cb52d9399a27e6876e45da36f434708c4fddef
* socket: Introduce function to obtain socket nameHarald Welte2017-01-271-0/+2
| | | | | | | 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/+2
| | | | | | | Add special cause for alerts produced by external processes. Change-Id: Idd7ee085321f8172c72ecfdba320186049f4d988 Related: OS#1615
* utils.h: #include <stdio.h> as we use fprintf()Harald Welte2017-01-231-0/+1
| | | | Change-Id: I911c7f4bcadde414ce0b384e13a3a9a4a953e2fb
* linuxlist.h: add llist_count()Neels Hofmeyr2017-01-211-0/+16
| | | | | | | | | | | | | | | After subchan_demux.c in libosmo-abis, osmo-bts/common/vty.c and openbsc's gtphub_test.c, more places would like to count the llist items (mostly unit tests). Instead of proliferating numerous local implementations, add here. NOTE: other than the previous llist_len() implementations, this one returns an *unsigned* length, which might need some adjusting of current callers. Call this llist_count() rather than llist_len() to highlight the fact that this is actively iterating. This also avoids a potential naming conflict when library versions mismatch. Change-Id: Ic49adc7a346f5722bf624d7d3b4a735e4220ae15
* logging: remove code duplicationMax2017-01-161-13/+4
| | | | | | | | * make DEBUGP* macro into simple wrappers around LOGP* * deprecate unused logp() function Related: OS#71 Change-Id: Ia6c92bd4824c44fc22cc733ce7a88da86e58ed93
* CTRL: add write-only helpersMax2017-01-161-0/+24
| | | | | | | | | Similar to CTRL_CMD_DEFINE_RO() add helper for control commands which are not meant to be read, only to set. Similarly, add CTRL_CMD_DEFINE_WO_NOVRF() for commands which do not perform inbound data verification. Change-Id: I66b7990db590c1f8e56326e392e6c1d2eafebd9a
* bitvec: Ensure bitvec.h and bitvec.c agree on function argument typeHarald Welte2017-01-151-1/+1
| | | | | | uint32_t may or may not be unsigned int. Change-Id: I21c96985fcbb72372b6df949301c21f1ebca41f2
* 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
* Add abis_nm_fail_evt_vrep() functionMax2017-01-111-0/+5
| | | | | | | | | 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
* Add value strings for Probable Cause TypeMax2017-01-101-0/+2
| | | | | | | | Add string representation of Probable Cause Type from 3GPP TS 12.21 § 9.4.43. Change-Id: I9fe14ed3b5398f59dd06a509e4d419e074cc20a7 Related: OS#1615
* gsmtap: Add GSMTAP_TYPE_QC_DIAGHarald Welte2017-01-091-0/+1
| | | | | | | This adds a definition for wrapping Qualcomm DIAG frames into GSMTAP for transporting them over an IP network. Change-Id: I1b357b7d11a370685671c7b01e55f4f36dec2f25
* fsm: Add VTY introspection of osmo_fsm and their instancesHarald Welte2017-01-071-0/+8
| | | | Change-Id: I89212e4f149f019099115a85bab353c04170df90
* Add osmo_fsm_find_by_name() and avoid registering FSM with same nameHarald Welte2017-01-071-0/+1
| | | | | | | 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
* Add OML Failure Event Report supportMax2017-01-061-0/+7
| | | | | | | | 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 descriptionsMax2017-01-061-0/+2
| | | | | | | | 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/+1
| | | | | | | | | 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 cause enum for OML fail reportsMinh-Quang Nguyen2017-01-061-0/+18
| | | | | | | | | | Add 3GPP TS 12.21 §9.4.43 Probable Cause values of type 03 (Manufacturer specific values). Max's note: renamed to make it clear that values are vendor-specific. Related: OS#1615 Change-Id: Ie9ba4b53fb19a151447aec9ea309284e20613585
* Add parsed TLV helpers from OsmoBTSMax2017-01-061-0/+2
| | | | | | Add functions to copy and merge parsed TLV structures from OsmoBTS. Change-Id: Ieaaaed19da9c069fe451faa53d24c5b84d7d5615
* Add OML definitions from OsmoBTSMax2017-01-062-0/+14
| | | | | Change-Id: I9c3bc15662949654e7bba6aad5488c69ee7d0c45 Related: OS#1615
* fsm: factor out osmo_fsm_inst_term_children() from osmo_fsm_inst_term()Neels Hofmeyr2016-12-241-0/+13
| | | | | | | | | | | | | | | | | | | | 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 Hofmeyr2016-12-241-0/+13
| | | | | | | | | | | 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
* add CRC16-CCITT to libosmocoreHarald Welte2016-12-231-0/+12
| | | | | | Use the implementation from Linux lib/crc-ccitt.c (GPLv2) Change-Id: I26bb54038f5ab36bbb34da7f5fb8ae6c0c0386a4
* utils.h: add OSMO_STRINGIFY and OSMO_VALUE_STRING macrosNeels Hofmeyr2016-12-211-0/+4
| | | | | | | | | | | | | | 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
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