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* Automatically disable GnuTLS fallbackMax2019-01-071-0/+1
| | | | | | | | | Disable GnuTLS fallback if sufficient glibc version detected. Previously GnuTLS fallback was used regardless of getrandom() availability in glibc. Fix this by automatically disabling it when not needed. This does not affect the ability to manually disable it unconditionally. Change-Id: Ibe2117afc050261668a4d5a590044aabcd08aefe
* Streamline glibc version checkMax2019-01-071-7/+11
| | | | | | | | | | * use macro for version check * report glibc version upon random.h detection * comment where various #endif belongs to * explicitly check for embedded build (our target toolchain don't use libc so there's no point in checking its version) Change-Id: Ia54f0b7a861f955be65bb0cf06eb10af9372d062
* tests/gsup_test.c: drop session IEs from MO-ForwardSM ErrorVadim Yanitskiy2019-01-052-10/+4
| | | | | | | | Both session state and session ID IEs were left from the initial version of Ibe325c64ae2d6c626b232533bb4cbc65fc2b5d71. There is no need to use them (as we use SM-RP-MR), so let's clean up. Change-Id: I0d910b87f15ffbc0aeeca9cb4fcbef32bdf3ef88
* fix typo in enum BSS_MAP_MSG_TYPE: BSS_MAP_MSG_ASSIGMENT*Neels Hofmeyr2019-01-041-3/+7
| | | | | | Keep #defines to still support previous wrong spelling. Change-Id: Id4cf812f0bc3cd40f6bfa05166f817a07a647f71
* osmo_rat_type: add OSMO_RAT_EUTRAN_SGSNeels Hofmeyr2019-01-042-0/+2
| | | | | | | osmo-msc is about to implement the SGs interface and requires a RAT indicator for that. Change-Id: I00588396bfe03feba38ecb0717d584594f0b2b46
* gsm_utils: add enum osmo_rat_type, from osmo-msc enum ran_typeNeels Hofmeyr2019-01-033-0/+23
| | | | | | | | | | | | | | | In the MSC, we have RAN types GERAN_A and UTRAN_IU, now we need a similar enum in osmo-hlr's GSUP client. Naming: in the MAP specifications, the RAN type is mostly called RAT type, (Radio Access Network vs. Radio Access Technology?). Since GSUP is more about MAP messages, I'm calling the enum osmo_rat_type. Rationale: osmo-msc and osmo-sgsn want to tell the osmo-hlr which RAT a subscriber is calling on. A subsequent patch will extend the GSUP protocol and add a RAT types IE. Change-Id: I659687aef7a4d67ca372a39fef31dee07aed7631
* add LOGPFSMSL(), LOGPFSMSLSRC()Neels Hofmeyr2019-01-031-6/+30
| | | | | | | | | | | | | | | | | | Using an FSM instace's logging context is very useful. Sometimes it makes sense to log something on a different logging category than the FSM definition's default category. For example, an MSC conn has aspects concerning MM, CC, RR, MGCP, ..., and currently all of those log on DMM. This came up in I358cfbaf0f44f25148e8b9bafcb9257b1952b35a, where I want to log an MGCP event using a ran_conn context, and used the conn->fi->id. That of course omits context like the current conn FSM state... I remember at least one other place where I recently added logging using some fi->id as context, so it might turn out useful in various places. Change-Id: I11b182a03f5ecb6df7cd8f260757d3626c8e945d
* LOGPFSM*: guard against fi == NULLNeels Hofmeyr2019-01-031-4/+4
| | | | | | | | The LOGPFSM macros are in such wide use that they should guard against a NULL fi pointer. In case of NULL, default to subsys = DLGLOBAL, loglevel = LOGL_ERROR and state = "fi=NULL". Change-Id: I9eaf8b7e2cf1e450ae626cb2fc928862008f6233
* add API doc for LOGPFSM* macrosNeels Hofmeyr2019-01-031-0/+31
| | | | Change-Id: I3bf6500889aa58195f50a726dec0876c0c2baec3
* logging/gsmtap: fix buffer overflow in _gsmtap_raw_output()Vadim Yanitskiy2018-12-281-0/+6
| | | | | | | | | | | | | | According to the man page, vsnprintf() returns: - a negative value in case of error; - the number of characters written (excluding '\0'); - the number of characters which *would have been written* if enough space had been available (excluding '\0'). We need to detect if the output was truncated, and properly limit the amount of bytes to be reserved within a msgb. Change-Id: Ifa822edf900ed925ba935c54a28c797c4657358a
* LCLS: enc/dec entire parameter set instead of GCRMax2018-12-235-36/+78
| | | | | | | | | | | | | In 3GPP TS 48.008 the Global Call Reference IE is only used in HANDOVER REQUEST (§3.2.1.8) and ASSIGNMENT REQUEST (§3.2.1.1) messages which also include LCLS Config and CSC parameters. Hence, there's no point in using GCR encode/decode functions alone. Introduce gsm0808_dec_lcls() and gsm0808_enc_lcls() as trivial wrappers on top of GCR enc/dec routines which are made static. Adjust tests accordingly. Test output intentionally left unchanged. Change-Id: Icfbb2404e1a1d500243e2071173299b557369335
* define LOGPFSM fmt only once, in LOGPFSMLSRCNeels Hofmeyr2018-12-231-7/+4
| | | | | | | | | Instead of duplicating the fmt and args in LOGPFSML and LOGPFSMLSRC, rather make LOGPFSML invoke LOGPFSMLSRC with __FILE__ and __LINE__. This is a cosmetic preparation for more tweaks coming up. Change-Id: I2f23c57ebfdb5355919c06ac5ded7732e3b17a97
* Fix VTY documentation error introduced in "bind" VTY port changeHarald Welte2018-12-231-1/+2
| | | | | | | | | In 99ae401e490e60fc07bef7eacc478be7bdcc9f5a we introduced the ability to specify the TCP port to which the VTY should bind. However, the VTY dcumentation wasn't extended accordingly, causing virtually all master build jobs to fail. Change-Id: I54fb0ca0d3a884a64a349b22de70f3d9bd1a6d54
* vty: Make TCP port configurable and introduce telnet_init_defaultHolger Hans Peter Freyther2018-12-234-3/+34
| | | | | | | | | | | | | | | Extend the vty_bind_cmd VTY command to allow to optionally specify a port in addition to the IPv4 address. Introduce telnet_init_default to relieve client code from having to query the bind IPv4 address (and now the TCP port). Instead a client only needs to pass the default TCP port to use. Client code should use it like: int rc = telnet_init_default(ctx, priv, OSMO_VTY_PORT_SGSN); Change-Id: Id5fb2faaf4311bd7284ee870526a6f87b7e260f3
* vty: The telnet interface is TCP only. Fix the commentsHolger Hans Peter Freyther2018-12-221-2/+2
| | | | Change-Id: I38555c4d4f565ce21dda34fc3857c47b3d802dbd
* tests/gsm0808: use new msgb comparison APIVadim Yanitskiy2018-12-211-12/+4
| | | | | | | | Since I3bc95f2f5ab6e3f4b502647fb3e0aaaf1f7c4cf5, we have some helpers to compare certain msgb layer to a given buffer. Let's change 'VERIFY' macro to use msgb_eq_l3_data_print(). Change-Id: Ib6be778236eff8f2153f3113f9379ecfbec9052b
* GSUP: add CHECK-IMEI messageOliver Smith2018-12-215-0/+93
| | | | | | | | | | | | | | Implement necessary messages for Procedure Check_IMEI_VLR (TS 23.018 Chapter 7.1.2.9). This lets the VLR ask the EIR to check if an IMEI is valid. In the Osmocom stack, we don't have an EIR and this request will be handled by the HLR. We will be able to store the IMEI in the HLR as side-effect (OS#2541). This is roughly based on TS 29.002 8.7.1 MAP_CHECK_IMEI service, but only implements the bare minimum required IEs (imei and imei_result). Related: OS#3733 Change-Id: I085819df0ea7f3bfeb0cabebb5fd1942a23c6155
* GSUP: add end marker to enum osmo_gsup_ieiOliver Smith2018-12-212-5/+3
| | | | | | | | | | | | | Simplify gsup_test.c by defining an end marker in gsup.h. No need to manually update the last element every time anymore. The C standard guarantees, that the end marker will have the last value plus one: "Each subsequent enumerator with no = defines its enumeration constant as the value of the constant expression obtained by adding 1 to the value of the previous enumeration constant." (From C99: 6.7.2.2 Enumeration specifiers) Change-Id: I2aab7245e209f0ebd2f33a83d4d181dd3339cb17
* GSUP: fix missing osmo_gsup_get_err_msg_type()sOliver Smith2018-12-211-0/+8
| | | | | | | | | | | Add missing mappings of request to error message types in osmo_gsup_get_error_msg_type(): * PROC_SS_REQUEST * MO_FORWARD_SM_REQUEST * MT_FORWARD_SM_REQUEST * READY_FOR_SM_REQUEST Change-Id: I801a0d6ffe09cfc75b77ab602bd25b3dc40f19c0
* TLV: add convenience function for 1-byte valuesMax2018-12-201-0/+16
| | | | | | | Similar to existing 16 and 32 bit value helpers but simpler because we don't have to worry about alingment and endianness. Change-Id: Ic0a148bd04b8860e321f509fdcd913f688c8e920
* TLV: fix doc copy-paste errorMax2018-12-201-1/+1
| | | | Change-Id: I8aa79cab7505585de00ee2aaae125462108906e8
* Use define for key buffersMax2018-12-203-6/+9
| | | | | | Add corresponding spec. references and comments where appropriate. Change-Id: If5e2aad86eaecd8eada667b3488ba415d81c6312
* rename CELL_IDENT_LAI_AND_LAC to CELL_IDENT_LAIStefan Sperling2018-12-191-2/+3
| | | | | | | | | The name "LAI AND LAC" makes no sense because a LAC is part of a LAI. Keep the old name available for API backwards compatibility. Change-Id: I2749cf75b7b45de0cd43cf4c696a6b6984f5a065 Related: OS#3124
* add/clean big-endian packed structs (struct_endianess.py)Neels Hofmeyr2018-12-199-45/+647
| | | | | | | | | | | | | | This is 1:1 the result of doing cd libosmocore ./contrib/struct_endianess.py git commit -a Running struct_endianess.py again should result in no changes. That means we could include such a check in the gerrit verification job now. Change-Id: Ia0b99d76932aeb03e93bd0c62d3bf025dec5f9d2
* LCLC: fix doc to match type signatureMax2018-12-191-2/+1
| | | | Change-Id: I8f7b3dca080ef0e632d47a907154f8404b0ec523
* Fix typos in SS opcode namesMax2018-12-191-2/+2
| | | | Change-Id: I8fa1961c85b3fd714bc8df56fe4af6be4060c208
* add to osmo_sock_get_name*() APINeels Hofmeyr2018-12-192-17/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basically, I am applying code review that I would have given had I not been on vacation when the last osmo_sock_get_name* stuff was merged. osmo_sock_get_name2() is so far a static internal function. However, it is nothing like osmo_sock_get_name(), so instead rename it to osmo_sock_get_ip_and_port(). Also make it public API, no need to hide it. I'm adding an "and" in the name to hopefully clarify: "ip_port" vs. "ip_and_port" -- there already are _get_X_ip_port() functions that only return the port string, despite "ip" in the name. Add new public osmo_sock_get_name2(), which is like osmo_sock_get_name(), except it uses a static string instead of talloc, and omits the braces. This is most convenient for log statement formats, avoiding dyn allocations. Add new osmo_sock_get_name_buf(), which is like osmo_sock_get_name2() but writes to a caller provided char buffer. Use osmo_sock_get_name_buf() in the implementation of osmo_sock_get_name(), but use another (non-static) local string buffer, because adding braces is too complex without talloc_snprintf(). Rationale: I want to improve the logging of socket errors, e.g. change DLMGCP ERROR Failed to read: 111/Connection refused (mgcp_client.c:720) to DLMGCP ERROR Failed to read: r=10.0.99.2:2427<->l=10.0.99.2:2728: 111='Connection refused' (mgcp_client.c:721) but it is just not handy to compose logging with the current API: - osmo_sock_get_name() requires a talloc_free(). - all the others require output buffers. - the only way to conveniently compose a logging string and, - notably, the only trivial way to skip the string composition if the logging level is currently muted, is to have a function that returns a static string: the new osmo_sock_get_name2(). - (I think the osmo_sock_get_{local,remote}_* convenience wrappers should never have been added, because they encourage the caller to invoke the same code twice, for IP addr and port, and throw away one half each time.) Related: Iae728192f499330d16836d9435648f6b8ed213b6 (osmo-mgw) Change-Id: I8ad89ac447c9c582742e70d082072bdd40a5a398
* GSUP/SMS: introduce READY-FOR-SM messageVadim Yanitskiy2018-12-186-1/+46
| | | | | | | | | | | | | | | According to 3GPP TS 29.002, section 12.4, MAP-READY-FOR-SM is used between the MSC and VLR as well as between the VLR and the HLR to indicate that a subscriber has memory available for SMS. This change replicates this service in GSUP as READY_FOR_SM_*. The only mandatory IE for this service (excluding Invoke ID) is 'Alert Reason' that is replicated by OSMO_GSUP_SM_ALERT_RSN_IE. Change-Id: Ic37f3b2114b8095cfce22977e67133b9103942e3 Related Change-Id: (docs) I549b6c8840a1e86caac09e77fb8bc5042d939e62 Related Change-Id: (TTCN) If2256607527ecfcb10285583332fb8b0515d7c78 Related: OS#3587
* GSUP/SMS: introduce MO-/MT-FORWARD-SM messagesVadim Yanitskiy2018-12-1811-15/+527
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to 3GPP TS 29.002, there are two services: - MAP-MO-FORWARD-SHORT-MESSAGE (see 12.2), - MAP-MT-FORWARD-SHORT-MESSAGE (see 12.9), which are used to forward MO/MT short messages. This change replicates both services as GSUP messages: - OSMO_GSUP_MSGT_MO_FORWARD_SM_*, - OSMO_GSUP_MSGT_MT_FORWARD_SM_*. Please note, that only the 'must-have' IEs are introduced by this change, in particular the following: - OSMO_GSUP_SM_RP_MR_IE (see note below), - OSMO_GSUP_SM_RP_DA_IE (see 7.6.8.1), - OSMO_GSUP_SM_RP_OA_IE (see 7.6.8.2), - OSMO_GSUP_SM_RP_UI_IE (see 7.6.8.4), - OSMO_GSUP_SM_RP_MMS_IE (see 7.6.8.7), - OSMO_GSUP_SM_RP_CAUSE_IE (see GSM TS 04.11, 8.2.5.4), where both SM_RP_DA and SM_RP_OA IEs basically contain a single nested TV of the following format: - T: identity type (see 'osmo_gsup_sms_sm_rp_oda_t'), - V: encoded identity itself (optional). According to GSM TS 04.11, every single message on the SM-RL has an unique message reference (see 8.2.3), that is used to link an RP-ACK or RP-ERROR message to the associated (preceding) RP-DATA or RP-SMMA message transfer attempt. In case of TCAP/MAP, this message reference is being mapped to the Invoke ID. But since GSUP has no 'Invoke ID' IE, and it is not required for other applications (other than SMS), this change introduces a special 'SM_RP_MR' IE that doesn't exist in MAP. Change-Id: Ibe325c64ae2d6c626b232533bb4cbc65fc2b5d71 Related Change-Id: (docs) Ie0150756c33c1352bc4eb49421824542c711175c Related Change-Id: (TTCN) Ibf49474a81235096c032ea21f217170f523bd94e Related: OS#3587
* LCLS: add gsm0808_create_ass2()Max2018-12-145-6/+133
| | | | | | | It allows setting additional assignment parameters explicitly. Change-Id: Id89765df3f8c12f55f73f1d7a9d90c8883eb3bba Related: OS#2487
* LCLS, TS 48.008: add GCR IE encoding/decodingMax2018-12-145-0/+123
| | | | | | | | * add functions to encode Global Call. Ref. from TS 29.205 as 3GPP TS 48.008 §3.2.2.115 information element * add corresponding tests Change-Id: I82ce0207dc8de50689a8806c6471ad7fbae6219d
* LCLS, TS 29.205: add GCR routinesMax2018-12-1410-4/+263
| | | | | | | | Add functions to encode and decode Global Call Reference as per 3GPP TS 29.205 Table B 2.1.9.1 add corresponding tests. Change-Id: Iee95aa4e5c056645b6cb5667e4a067097d52dfbf Related: OS#2487
* gsm0480: fix copy-pasted note for gsm0480_gen_return_error()Vadim Yanitskiy2018-12-141-3/+0
| | | | | | InvokeID is mandatory for ReturnError component. Change-Id: Ie1c7116d368c2029b9f524cb74ffa316e282ec83
* stats.h: Fix build on MacOSPau Espin Pedrol2018-12-131-2/+2
| | | | | | | Otherwise struct osmo_stats_config is not defined and compiler fails. Related: OS#3722 Change-Id: I037c3ca141ecee2d457e0a881a56e32ee24cec4d
* msgb: add test helpersMax2018-12-122-0/+231
| | | | | | | | It's often handy to compare certain msgb layer to a given array and print the position where they differ. Add simple pretty-printer and corresponding L* wrappers. Change-Id: I3bc95f2f5ab6e3f4b502647fb3e0aaaf1f7c4cf5
* fix api doc for osmo_bcd2str()Neels Hofmeyr2018-12-111-1/+1
| | | | Change-Id: I504ea849fc9daeb34a1b3c5343371161deba743e
* gsm48_mi_to_string(): do not read from zero length input bufferNeels Hofmeyr2018-12-101-1/+1
| | | | Change-Id: I12cada7c2c5187146ca5a33d1ebfefb4cad65632
* gsm48_mi_to_string(): guard against zero length output bufferNeels Hofmeyr2018-12-102-13/+13
| | | | | | | | All successful cases already return from the switch(), so simply handle all errors below it by returning an empty string (if there is enough string buffer). Change-Id: I709ac3b9efb7b4258d8660715b10312e11b9b571
* gsm48_generate_mid(): mask out ODD flag from mi_typeNeels Hofmeyr2018-12-103-8/+6
| | | | | | | | For MI encoding, see 3GPP TS 24.008, 10.5.1.4 Mobile Identity. The 'odd' flag indicates whether the last BCD nibble is used. Of course that flag should be made sure to reflect the actual length. Change-Id: Id6e695ebf9f86b295eaa7e2c6228989256f37e68
* gsm48_mi_to_string: use osmo_bcd2str(), fix some corner casesNeels Hofmeyr2018-12-103-29/+24
| | | | | | | | | | | | | By using osmo_bcd2str(), ensure that the resulting string is always nul terminated, and always return strlen()+1 whether truncated or not. Still keep up the previous return value style, even if that isn't consistent at all. The difference between IMSI/IMEI and TMSI return values remains and is not part of this patch. Change-Id: I1b51b72a721e1cc9d69796b804ebda741ff0f36b
* add osmo_bcd2str()Neels Hofmeyr2018-12-104-0/+186
| | | | | | | | | | | | | | | | | | Add a standalone bcd-to-string conversion function with generic parameters. Add a regression test in utils_test.c. So far there is no single universal implementation that converts a BCD to a string. I could only find gsm48_mi_to_string(), which also interprets surrounding bytes, MI type and TMSI as non-BCD value. The idea is to use this function from gsm48_mi_to_string() and similar implementations in subsequent commits. Root cause: in osmo-msc, I want to have an alternative MI-to-string function for composing an FSM name, which needs the BCD part of gsm48_mi_to_string() but not the TMSI part. Change-Id: I86b09d37ceef33331c1a56046a5443127d6c6be0
* Constify llist_count() parameterMax2018-12-101-1/+1
| | | | | | | Counting list entires should not alter the list content: let's make this obvious from type signature. Change-Id: I414e67a3de733fab407161b3264d3b89070ba537
* api doc: gsm48_mi_to_string(): warn of return value implementationNeels Hofmeyr2018-12-101-1/+4
| | | | Change-Id: If5e7abd15dddf39cdfad8071f4cd5ca8244eabe0
* gsm0408_test: test encoding and decoding Mobile IdentityNeels Hofmeyr2018-12-102-0/+358
| | | | | | | | | | | | | | | | | | | | | | | | | | | | One would think by now we would solidly encode and decode Mobile Identities. Well, guess again. - rc is sometimes the amount of bytes written, sometimes actual strlen(). - on string truncation, rc is sometimes strlen() (assuming nul terminated), and sometimes snprintf()-style would-be strlen(). - returned string, when truncated by not enough buffer size, is sometimes nul terminated, sometimes not. - gsm48_mi_to_string() happily reads a byte from zero-length input buffer. - gsm48_mi_to_string() happily writes to zero length output buffer. - gsm48_mi_to_string() returns nonempty string for empty input. - encoding a MI type that still has the GSM_MI_ODD flag set results in encoding an even-length MI as odd-length (hence appending a stray 'F'). I am going to tweak the implementation of gsm48 mobile identity encoding / decoding, so first pinpoint the current behavior in a unit test, and show how perforated even such a seemingly trivial API can be. Change-Id: Iaae3af87f82f1a8f2e6273984c011b2813038cf7
* timer: Fix clockid_t undefined on MacOS < 10.12Pau Espin Pedrol2018-12-102-0/+5
| | | | | Related: OS#3722 Change-Id: If466a64bd44dcb8ae8a9b7f82bc9c9435ba3e640
* gsm0808: add encoder for cause codes and use itPhilipp Maier2018-12-086-19/+75
| | | | | | | | | | | | | | | | At the moment the all gsm0808 cause codes are encoded directly using the tlv API directly to put a one byte TLV field. This works ok for most situations where the cause code consists of a single byte. However, gsm0808 specifies a two byte cause code model where cause codes may be extended up to two bytes. Instead of implementing the encoding over and over and again, let's rather have an encoder function we can call. - Add an encoder function that can generate single byte and extended cause codeds and makes the length decision automatically. - Use only this function to append cause codes Change-Id: I71d58fad89502a43532f60717ca022c15c73f8bb
* gsm29118: add generator functions for GSM29118 messagesPhilipp Maier2018-12-075-0/+363
| | | | | | | | | We already have some GSM29118 related definitions and functions in libosmocore. Lets also add some functions to generate GSM29118 messages (similar to those we have for GSM0808). Change-Id: Ic87f8a771b87b52215d0a7451b67794557b80b8a Related: OS#3615
* gsm_29_118.h: Add constant for default portPhilipp Maier2018-12-071-0/+3
| | | | | | | | The specification defines a default port where the SGs interface should be reachable. Lets add a define-constant for it. Change-Id: Ia4b9f547dd980411d15b2691b7f535fa0463f0f1 Related: OS#3615
* cosmetic apn: correct whitespace errorPhilipp Maier2018-12-072-2/+2
| | | | | | | there is a whitespace between the * and osmo_apn_to_str(). Lets remove this. Change-Id: I094e6eb08eacf2d6459c47a7370837601aa92925
* Add osmo_sockaddr_in_to_str_and_uint()Max2018-12-072-5/+23
| | | | | | | | | It's similar to osmo_sockaddr_to_str_and_uint() but does not require odd typecasting for AF_INET case. Make osmo_sockaddr_to_str_and_uint() into wrapper around new function and make sure to check for address family before typecasting. Also use proper return type. Change-Id: Ie384483124d407a960ab6732e6a7fd90554389d2
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