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* fix USSD: SS message type mask should be 0x3f, not 0xbfNeels Hofmeyr2016-10-121-1/+1
| | | | | | | | | | | | | | See 04.80[1], section 3.4: the highest two bits are used as counter or ignored and do not contribute to the SS "Miscellaneous message group". Previous mask of 0xbf included the highest bit, fix to 0x3f. Observed a value of 0xbb that should mean 0x3b="Register" during testing of 3G USSD requests, which seem to be the first to send a nonzero highest bit to our code. The erratic mask of 0xbf lead to an unhandled message type of 0xbb. [1] 3GPP TS 24.080 version 7.2.0 Release 7 / ETSI TS 124 080 V7.2.0 (2006-09) Change-Id: I299001a9e36c16f55622a0acd5d4a55ca49d0055
* IuPS: add GMM Service Request related constants and value_strNeels Hofmeyr2016-08-292-0/+12
| | | | Change-Id: Ie023fc78099932f95cc8f1b3a04fe25dfd14bc35
* lapd_core: Fix crash in lapd_dl_flush_hist()Harald Welte2016-08-011-1/+1
| | | | | | | | When lapd_dl_flush_hist() was called before we actually had started a transmit history from lapd_dl_init(), we woul segfault before this patch. Change-Id: Ifa677c9b335dd2884b4f3e44699d901957a0500b
* egprs: Add CPS tables from TS 04.60Tom Tsou2016-07-253-1/+109
| | | | | | | | Includes EGPRS coding and puncturing scheme (CPS) tables from 3GPP TS 04.60. Currently osmo-bts-trx is the only user of CPS table values, but this may change with gprsdecode and other utilities. Change-Id: I09fe6514a0e2e51bb3206f8387633f7e0255345f
* rsl: add rsl_act_type_name()Neels Hofmeyr2016-07-232-0/+14
| | | | Change-Id: Ie90c76d8aef42d5e2c9be94f4b206d4994e305f8
* dyn TS: add definitions for dynamic TCH/F_TCH/H_PDCHNeels Hofmeyr2016-07-231-0/+1
| | | | | | | | | | | Add: * GSM_PCHAN_TCH_F_TCH_H_PDCH * NM_CHANC_OSMO_TCHFull_TCHHalf_PDCH * RSL_CHAN_OSMO_PDCH * RSL_ACT_OSMO_PDCH Related: OS#1776 Change-Id: Ib1a8b11f37af4686d00ac88beba38557aa29edc2
* fix compiler warning: gsup.c: missing bracesNeels Hofmeyr2016-07-171-1/+1
| | | | | | | osmo_auth_vector's first member is an array, so for a zero initializer, we should add a second set of array braces. Change-Id: Iace448caca8152e46244f26c3af250f2035c99eb
* Add GEA3 & GEA4 ciphersMax2016-07-113-2/+110
| | | | | | | | | | | Corresponding test code include both official test vectors from the specs and data from over-the-air tests. This obsoletes libosmo-crypt-a53 as it was last missing piece unimplemented in libosmogsm. Change-Id: I939e4f6b91b4a7c591ef3761fe2d46ed1c2fb2d3 Related: OS#1582
* Add strings with GPRS GMM messagesMax2016-07-082-0/+25
| | | | | Change-Id: I48477b733e2da72f59349c00554dd3e080c9f445 Related: OS#1582
* Add function to check GMM encryptabilityMax2016-07-072-0/+26
| | | | | | | | Check if particular GMM message can be encrypted according to 3GPP TS 24.008 § 4.7.1.2 Related: OS#1582 Change-Id: I7ad0e03c2c738d174dd6bc3453f332eeb8da1e7d
* Add missing osmo_c4 exportMax2016-07-071-0/+1
| | | | | Change-Id: Iaf53b31b4fa3860301054e970907ada061360b28 Related: OS#1741
* lapd_dl_flush_hist(): Don't flush a non-existant historyHarald Welte2016-07-031-0/+3
| | | | | | | | | | | If lapd_dl_flush_hist() is called after lapd_dl_exit(), dl->tx_hist has already been free'd and set to NULL. Check for this before attempting to de-reference a NULL pointer. This bug breaks OpenBSC with any E1 based BTSs using DAHDI. Change-Id: I117ba3445fa5e8097e21c11c5a6337de6ba46c7d Related: OS#1760
* Add function to check MS GEA capabilitiesMax2016-06-292-1/+31
| | | | | | | | Add function which parses MS network capability IE value for bits indicating support for particular version of GEA. Change-Id: I785cef37dd272a2fab9b172f6e1392f865174e9a Relates: OS#1582
* Make C4 function globally availableMax2016-06-292-4/+4
| | | | | | | | | This function perform 64 -> 128 bit key expansion which useful for converting between UMTS CK and GSM Kc, A5/3 and A5/4, GEA3 and GEA4 keys. Change-Id: I5a6c6deef6027cd6af144c9062d4c9166be26904 Related: OS#1582
* Add strings for GPRS ciphersMax2016-06-292-0/+10
| | | | | Change-Id: I050bda5fb50aad42fe2d72de39f8256b4fb12fb2 Related: OS#1582
* Add UMTS AKA related MM/GMM message type and IE definitionsHarald Welte2016-06-161-1/+9
| | | | | | | Change-Id: Id45ea2c631ee589a4df1f8213da6f7e7d1bf6616 Reviewed-on: https://gerrit.osmocom.org/305 Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Jenkins Builder
* gsup.c: Fix encoding of UMTS auth vectorsHarald Welte2016-06-161-6/+22
| | | | | | | | | | Encoding auth vectors worked fine for GSM authentication, but didn't yet include the new IEs for UMTS authentication yet. Change-Id: I7fa5ba1c950292bd0a9874b3102a27f221ce390d Reviewed-on: https://gerrit.osmocom.org/302 Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Jenkins Builder
* add rsl_or_ipac_msg_name() for both standard and ip.access msg typesNeels Hofmeyr2016-06-132-0/+12
| | | | | | | | | | | Context: in osmo-bts, I want to look up an RSL message name in rsl_msgt_names and fall back to rsl_ipac_msgt_names if not found, because the IPAC PDCH ACT and DEACT messages are sent in a standard ABIS_RSL_MDISC_DED_CHAN. Change-Id: Ic9ba721a1469cf51aed97ab0f44a7fe055c94b1f Reviewed-on: https://gerrit.osmocom.org/231 Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Jenkins Builder
* Add strings with PH primitive namesMax2016-05-302-0/+14
| | | | | | | | | | It's useful debugging helper while troubleshooting L1-related issues. Change-Id: Id7a6d478fd725c51f54ad746bdf9b9095579ff77 Reviewed-on: https://gerrit.osmocom.org/117 Tested-by: Jenkins Builder Reviewed-by: Max <msuraev@sysmocom.de> Reviewed-by: Holger Freyther <holger@freyther.de>
* Revert "gsm48: move to hex TMSI representation"Holger Freyther2016-05-201-1/+2
| | | | | | | | | | | | | | | | | This is a "flag" day change. Old OpenBSC break with new libosmocore because suddenly there is the 0x in front. I am afraid we need to find a better solution here. I think we will need to create a gsm48_mi_to_string variant that takes a mode parameter to enable the TMSI mode and deprecate the old method. Right now we should not break old versions of OpenBSC. This reverts commit 78ad042f94afd5bf7de477ae634e9d2fdd9c9dc4. Change-Id: I2f61e626f2f9088b492e1b643c3dcc9bce77d52b Reviewed-on: https://gerrit.osmocom.org/86 Tested-by: Jenkins Builder Reviewed-by: Holger Freyther <holger@freyther.de>
* gsm48: move to hex TMSI representationVadim Yanitskiy2016-05-201-2/+1
| | | | | | | | | | | | | Previously, we traditionally displayed a TMSI in its integer representation, which is quite unusual in the telecom world. A TMSI is normally printed as a series of 8 hex digits. Review at https://gerrit.osmocom.org/57/ Change-Id: Ifd25365bfa3b4ee95b16979740c3229948ce17f2 Reviewed-on: https://gerrit.osmocom.org/57 Tested-by: Jenkins Builder Reviewed-by: Harald Welte <laforge@gnumonks.org> Reviewed-by: Holger Freyther <holger@freyther.de>
* Add function to make Uplink MeasurementMax2016-05-172-0/+22
| | | | | | | | | | | It assembles RSL Uplink Measurement IE according to 3GPP TS 08.58 §9.3.25. The function is based on lchan_build_rsl_ul_meas() from OsmoBTS but optionally includes DTX information. Change-Id: Ib37107bcc9909e5105ea711de42d3fb1db7e8d9e Reviewed-on: https://gerrit.osmocom.org/44 Tested-by: Jenkins Builder Reviewed-by: Harald Welte <laforge@gnumonks.org>
* Set DTX in Cell OptionsMax2016-05-122-1/+47
| | | | | | | | | | | | * rename field of struct gsm48_cell_options to better match the spec * add comments with spec references * add function for setting DTX in cell options struct * add necessary enum type Change-Id: I5a8924f57669c951b2e51b663d95f1d360062a54 Reviewed-on: https://gerrit.osmocom.org/39 Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Jenkins Builder
* api doc: auth_core.c: add \returns, cosmeticNeels Hofmeyr2016-05-101-2/+9
| | | | | | | | | | | | | | | Add various missing \returns doxygen entries. In osmo_auth_3g_from_2g(), also adjust two comment-closing instances to match common style and add a period to end a sentence. (The recent addition of osmo_auth_3g_from_2g() raised my attention, and I added more return value docs while at it.) Change-Id: Iea71eb666bc061acb6b14215f398bd38d17b3ad3 Reviewed-on: https://gerrit.osmocom.org/33 Tested-by: Jenkins Builder Reviewed-by: Holger Freyther <holger@freyther.de>
* GSUP: Add support for RAND in SendAuthInfo.reqHarald Welte2016-05-061-1/+12
| | | | | | In the autentication re-sync case, we need not only the AUTS from the MS/UE, but also the RAND that we sent as part of the failed authentication challenge.
* GSUP: Add OSMO_GSUP_CN_DOMAIN_IE to differentiate CS and PS planeHarald Welte2016-05-061-0/+9
| | | | | We're starting to use GSUP for circuit-switched (CS) plane, so we need to differentiate the two planes somehow from each other.
* import gprs_gsup_message.[ch] from openbsc as gsup.[ch]Harald Welte2016-05-063-1/+477
| | | | | | | Move those routines from OpenBSC to libosmogsm, so they can be re-used from other programs. I think it was a mistake to add them only inside the openbsc repository in the first place. We need to pay more attention to this in the future.
* tlv: Import osmo_shift_* and osmo_match_shift_* from openbscHarald Welte2016-05-052-0/+177
| | | | | These routines have nothing to do with specifically the BSC, so import them to the TLV parser we keep in libosmogsm.
* import gsm_04_08_gprs.[ch] from openbsc.gitHarald Welte2016-05-053-1/+148
| | | | | | The definitions in this header file (and associated strings in the c file) are generic about the GPRS Layer3 signalling protocols, and thus should be part of the library.
* auth_core: Add osmo_auth_3g_from_2g() to compute CK+IK from KcHarald Welte2016-05-052-0/+42
| | | | | This function performs the C5+C4 conversion to derive UMTS key material from a 2G-only subscriber.
* conv_gen: Use python2 to execute the scriptHolger Hans Peter Freyther2016-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | | The script does not work with python3: $ python3 utils/conv_gen.py File "utils/conv_gen.py", line 124 def _print_term(self, fi, num_states, pack = False): Second there is no 'python' on FreeBSD and one needs to select the major version to use. GEN conv_cs3_gen.c GEN conv_xcch_gen.c GEN conv_cs2_gen.c python: not found python: not found python: not found By using python2 we solve both issues. On Debian python2 is located inside the python-minimal package.
* Add code generator for convolutional codesMax Suraev msuraev@sysmocom.de2016-04-292-0/+20
| | | | | | | | | | | | | | | | Add python utility to generate .c code with convolutional encoder/decoder based on polynomial description of the code. If argument given it'll be interpreted as intended output directory, otherwise current working directory is used. Codes for *CCH, CS2/3 and TCH/AFS are generated. Corresponding manual implementations are removed from tests. This introduce build-time dependency on python. The main work for this patch was generously contributed by Sylvain Munaut. Fixes: OS#1629
* milenage/aes: Address undefined behavior on bitshiftHolger Hans Peter Freyther2016-04-241-1/+1
| | | | | | | | | | | | | | | | | Extend the u8 to u32 before going to shift it. Fixes: milenage/aes-internal.c:799:4: runtime error: left shift of 128 by 24 places cannot be represented in type 'int' #0 0x7f84e9fe86a2 in rijndaelKeySetupEnc (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xfa6a2) #1 0x7f84e9febad8 in aes_encrypt_init (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xfdad8) #2 0x7f84e9fe7d14 in aes_128_encrypt_block (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xf9d14) #3 0x7f84e9febe7d in milenage_f1 (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xfde7d) #4 0x7f84e9fee2ce in milenage_generate (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0x1002ce) #5 0x7f84e9fe76d7 in milenage_gen_vec (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xf96d7) #6 0x7f84e9fe6c08 in osmo_auth_gen_vec (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/src/gsm/.libs/libosmogsm.so.5+0xf8c08) #7 0x401441 in main (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/tests/auth/.libs/lt-milenage_test+0x401441) #8 0x7f84e8e33a3f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x20a3f) #9 0x400e58 in _start (/home/builder/jenkins/workspace/Osmocom_Sanitizer/source/libosmocore/tests/auth/.libs/lt-milenage_test+0x400e58)
* Add function for appending range1024 to bitvecMax2016-04-232-1/+37
| | | | | Add convenience function to append range1024 encoded data (see 3GPP TS 44.018 Annex J) to a given bitvec.
* Deprecate comp128Max2016-04-222-2/+7
| | | | | Mark function as deprecated to discourage its usage: people should use generic API in osmocom/crypt/auth.h
* Deprecate osmo_a5_1 and osmo_a5_2Max2016-04-221-50/+58
| | | | | Mark the functions as deprecated to discourage their use: people should use unified osmo_a5 which supports all the A5/1-4 ciphers.
* Improve code reuseMax2016-04-221-32/+3
| | | | Use generic functions covered by testsuit for SQN calculations.
* Update internal GPRS cipher APIMax2016-04-222-2/+22
| | | | | Update internal API (for GPRS cipher implementors): make it compliant with ETSI TS 155.22. External API left untouched.
* Add function to get osmo_earfcn bit sizeMax2016-04-162-0/+25
| | | | | | This function returns the number of bits necessary to pack osmo_earfcn into Repeated E-UTRAN Neighbour Cells IE (3GPP TS 44.018 Table 10.5.2.33b.1).
* Export names for gsm_chan_t and gsm48_chan_modeMax2016-03-302-1/+27
| | | | This can be used with get_value_string() to improve debugging output.
* Rename struct to better match libosmocore conventionsMax2016-03-171-3/+3
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* Revert "gsm48: move to hex TMSI representation"Harald Welte2016-03-171-1/+1
| | | | This reverts commit f451ce66eb8206bad1078849723edcb209632834.
* gsm48: move to hex TMSI representationVadim Yanitskiy2016-03-171-1/+1
| | | | Signed-off-by: Vadim Yanitskiy <axilirator@gmail.com>
* Add basic EARFCN supportMax2016-03-172-0/+54
| | | | | | Add structure representing group of EARFCNs with common priority, threshold etc. Add functions to populate this structure.
* gsm48: factor out MCC+MNC BCD parsing for re-use in UMTSNeels Hofmeyr2016-03-152-21/+36
| | | | | | | | | | For 3G, I need a BCD composer/parser similar to gsm48_generate_lai()/ gsm48_decode_lai(). Those functions also handle a trivial extra member (lac) which I don't need in this way for 3G. So create new functions to take on the MCC+MNC BCD handling and call those from gsm48_generate_lai() and gsm48_decode_lai(). In this way, the 3G code in openbsc can use only the BCD functionality without code duplication.
* 04.08: add inline funcs for pdisc + msg type bitmasksNeels Hofmeyr2016-03-151-2/+2
| | | | | | | | | | | | | | | | Add inline functions for both release <= 98 and release >= 99 as well as a default define. Use the release 98 by default since the current code base uses the r98 bitmasks. These inline functions relieve callers of the decision on masking bits of the protocol discriminator and message type octets. Also add a define for the protocol discriminator extension to one octet length (GSM48_PDISC_EXTEND). Apply new pdisc function in gsm0480.c. [hfreyther: Make the hdr param const]
* comment typoNeels Hofmeyr2016-02-291-1/+1
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* ipa: recv is declared in different headers on BSDHolger Hans Peter Freyther2015-11-091-0/+2
| | | | | | | | Include the headers mentioned by the manpage ipa.c:346:9: warning: implicit declaration of function 'recv' is invalid in C99 [-Wimplicit-function-declaration] ret = recv(fd, msg->tail, needed, 0);
* Fix sporadic out-of-bounds errorMax2016-01-221-13/+21
| | | | | | | | This code dealing with bit shifting sometimes gets 1 byte beyond array boundary while calculating index. This is now explicitly checked and prevented. Ticket: OW#1198 Sponsored-by: On-Waves ehf
* gsm: Add APN conversion functionsJacob Erlbeck2016-01-152-0/+77
| | | | | | | | | | | | These functions are currently part of openbsc but also needed by other projects. The function have been renamed as follows: gprs_apn_to_str -> osmo_apn_to_str gprs_str_to_apn -> osmo_apn_from_str Sponsored-by: On-Waves ehf
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