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* select: Externalize fd_set filling and dispatchHolger Hans Peter Freyther2016-03-311-32/+51
| | | | | | | | | | | | | | | | To integrate with an external event loop (in this case glib) we need to allow an application to get a filled out fd_set and then dispatch it. osmo_fds and maxfds are static and I decided to keep it that way and instead create two routines to fill the fdset and then one to dispatch the result. The public header file does not include sys/select.h and we can compile the library without select, so I didn't want to require having to include this file, and used void * for the parameter. Mark the routines as inline to avoid a call from the select function. I have confirmed that inlining has an effect on x86 using Debian's gcc-4.9.2-10 compiler
* 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.
* sim: make osim_reader_ops publicHarald Welte2016-03-191-7/+0
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* Add new osmo_fd_get_by_fd() functionHarald Welte2016-03-191-0/+12
| | | | | | This function can be used to obtain the osmo_fd corresponding to a given fd. The latter can be useful when integrating libosmocore main loop with other libraries.
* sim: add class_tables / card profilesHarald Welte2016-03-172-2/+316
| | | | | The tables permit code to determine the APDU class of an APDU based on it APDU/TPDU header (CLA/INS/P1/P2/P3).
* Improve BSSGP debug outputMax2016-03-172-17/+17
| | | | | Print string representation of Cause IE and PDU type instead of numerical value.
* 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.
* Add function to add bits from array to bitvecMax2016-03-171-0/+40
| | | | | | | | | Add function which adds specified number of bits from each element of array to the bit vector prefixing each addition with one and finishing entire sequence with adding 0. This is very common patter for various repetitive data structures described with CSN.1 in 3GPP standards. Corresponding test vectors and doxygen headers are added too.
* 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]
* Add helper function to convert numerical BSSGP PDU type to stringMax2016-03-111-0/+46
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* rename osim_file_find_* to osim_file_desc_find_*Harald Welte2016-03-111-3/+5
| | | | they return an osim_file_desc, and not an osim_file, so fix the naming
* sim: Add osim_file_find_{fid,sfid}() functionsHarald Welte2016-03-111-0/+25
| | | | | We don't always want to look-up by name, but the latter is the only implemented 'find' function so far. Let's change that.
* logging: Remove unused variable after recent changesHolger Hans Peter Freyther2016-02-291-1/+0
| | | | | The variable is not used anymore as the decision is done in the newly added check_log_to_target method.
* logging: Move the filter check up as wellHolger Hans Peter Freyther2016-02-291-11/+9
| | | | | | There doesn't seem to be a reason not to check the filter. Update and extend the test. Currently the filter function will be called once for the log check and once for the output of it.
* logging: Remove some code duplicationHolger Hans Peter Freyther2016-02-291-37/+37
| | | | | | Extract the mapping of the subsystem number and the checking for the loglevel to a inline method that is shared between the new and old.
* log: Add log_check_level functionJacob Erlbeck2016-02-291-0/+39
| | | | | | | | | | | | | | | | | | This commit adds this predicate function which can be used to avoid the execution of code if a certain log level is not enabled. The function will only return 0 (false), if it is sure that a logging call for the same facility and level will not produce any output. This safety criterion shall ensure, that no logging output is lost due to the use of this predicate as a guard. On the other hand, even if the predicate returns != 0 (true), no logging output might get generated by a similar logging command. Note that the current implementation is not focussed on performance, which could be improved by using a lookup table instead of iterating through every target. Sponsored-by: On-Waves ehf
* comment typoNeels Hofmeyr2016-02-291-1/+1
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* vty: add ctrl section for Control interface bind addressNeels Hofmeyr2016-02-252-0/+92
| | | | | | | | | | | | | | | | | | | | | | | This may seem like overkill for a mere const char * config item, but it makes the Control interface VTY commands reusable in any main() scope (inspired by libosmo-abis' VTY config). Add API functions ctrl_vty_init() and ctrl_vty_get_bind_addr(), in new files src/ctrl/control_vty.c and include/osmocom/ctrl/control_vty.h, compiled and/or installed dependent on ENABLE_VTY. Using these functions allows configuring a static const char* with the VTY commands ctrl bind A.B.C.D which callers shall subsequently use to bind the Control interface to a specific local interface address, by passing the return value of ctrl_vty_get_bind_addr() to control_interface_setup(). Add CTRL_NODE to enum node_type, "eating" RESERVED4_NODE to heed that comment on avoiding ABI changes.
* add ctrl_interface_setup_dynip() for bind addressNeels Hofmeyr2016-02-251-1/+9
| | | | | | Make the ctrl interface bind address configurable, so that it may be made available on other addresses than 127.0.0.1. The specific aim is to allow running multiple osmo-nitbs alongside each other (commits in openbsc follow).
* vty: add bind command for telnet vty lineNeels Hofmeyr2016-02-251-0/+28
| | | | | | | | | | | | | | | | | | | | Add VTY command line vty bind A.B.C.D The command merely stores the configured IP-address, which can then be used by the calling main program to set the telnet port of the VTY line. (Commits in openbsc and osmo-iuh will follow up on this.) Add function vty_get_bind_addr() to publish the address in the vty.h API. Add static vty_bind_addr to store. For allocation/freeing reasons, a NULL address defaults to 127.0.0.1. BTW, I decided against allowing keywords 'any' and 'localhost' in place of an actual IP address to make sure a written config is always identical to the parsed config.
* gb: Add bssgp_msgb_copy functionJacob Erlbeck2016-02-222-0/+31
| | | | | | | | | | | | | | This function originates from openbsc/src/gprs but is just specific to BSSGP/Gb on the same level like bssgp_msgb_alloc. This commit puts the former gprs_msgb_copy function beside bssgp_msgb_alloc. Renamed function: gprs_msgb_copy -> bssgp_msgb_copy Sponsored-by: On-Waves ehf
* bitvec: Untested speculative UBAN fix for the new routineHolger Hans Peter Freyther2016-02-181-1/+1
| | | | | | | | int << 31 does not seem to be defined, let's try to make it an unsigned variable and see if that is pleasing the system. Fixes: bitvec.c:219:15: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
* Add T4 bit map compression routinesMax2016-02-182-1/+481
| | | | | | | | | | | | | | | Add bit map encoder and decoder functions: decoder is fully functional while encoder is good enough for testing - no backtracking to find the best possible compression is implemented. If somebody is willing to implement MS side of EDGE than this has to be expanded. Add corresponding tests. N. B: the encoding is implemented according to ETSI TS 44.060 which is slightly different from T4 used for fax according to CCITT G31D (RFC 804). Ticket: OW#2407 Sponsored-by: On-Waves ehf Signed-off-by: Max <msuraev@sysmocom.de>
* Expand bitvec interfaceMax2016-02-181-5/+129
| | | | | Add bit filling, shifting and other functions necessary for bit compression implementation. Add corresponding tests.
* bitvec: Test and fix regression for C++->C conversionHolger Hans Peter Freyther2016-01-301-9/+9
| | | | | | | | | | | | | bitvec_read_field/bitvec_write_field in the PCU used a C++ reference and when porting to C it was decided to pass the parameter by value and this lost the "back propagation" of the new index. Change the parameter to be an in/out parameter and this way do not have a silent semantic break in the osmo-pcu (where we copy the reference in csn.1 by value) and have a true compile failure. Add Max's simple test for bitvec_unhex function leaving the checking of bitvec_read_field and the side effect in the datastructure about the number of bits still open.
* Add doxygen comments to clarify function useMax2016-01-301-1/+14
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* bitvec: Fix build on older gccHolger Hans Peter Freyther2016-01-271-1/+3
| | | | | | bitvec.c: In function 'bitvec_unhex': bitvec.c:389: error: 'for' loop initial declarations are only allowed in C99 mode bitvec.c:389: note: use option -std=c99 or -std=gnu99 to compile your code
* Add bitvec-related functions from Osmo-PCUMax2016-01-261-0/+95
| | | | | | Allocation, pack/unpack, field access and helper routines used extensively by Osmo-PCU. Whenever memory allocation happens, alocator context is passed explicitly by caller.
* 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);
* vty: Use NULL to have a null pointer instead of '\0'Holger Hans Peter Freyther2015-11-091-3/+3
| | | | | | | | | | | | | | | | | | '\0' gets translated to zero but the argument to vector_set is a pointer and it gets converted to a pointer. vty.c:985:21: warning: expression which evaluates to zero treated as a null pointer constant of type 'void *' [-Wnon-literal-null-conversion] vector_set(vline, '\0'); ^~~~ vty.c:1095:21: warning: expression which evaluates to zero treated as a null pointer constant of type 'void *' [-Wnon-literal-null-conversion] vector_set(vline, '\0'); ^~~~ vty.c:1097:21: warning: expression which evaluates to zero treated as a null pointer constant of type 'void *' [-Wnon-literal-null-conversion] vector_set(vline, '\0'); ^~~~
* bitvec: Fix interface to consistently use unsigned intMax2016-01-221-7/+7
| | | | | | | Use unsigned int for the length throughout the interface. We will never have a a negative length. Sponsored-by: On-Waves ehf
* bitvec: Fix unaligned memory access in osmo_revbytebits_bufMax2016-01-221-2/+1
| | | | | | | | | | | | | The undefined behavior sanitizer found the 32bit load from an unaligned memory address. This will cause an exception on ARMv5te and a manual fix-up. [hfreyther: On armv6, x86 the usage of memcpy leads to shorter amount of instructions but on armv5te the memcpy is not expanded leading to a branch. Use the version of max until we have the time to benchmark it] Sponsored-by: On-Waves ehf
* 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
* bitvec: Add get/set byte sequencesJacob Erlbeck2016-01-151-0/+75
| | | | | | | | | | | | | | | The new functions bitvec_get_bytes and bitvec_set_bytes copy byte sequences from bitvecs to uint8_t arrays and vice versa. While the bytes in the bitvecs do not need to be aligned, the uint8_t arrays always are. In case the bytes in the bitvec are aligned, the implementation uses memcpy. Note that the implementation like the other existing functions assume MSB first encoding. [hfreyther: Squash the comment fix into this commit as well] 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
* Fix some recently added formats on 64bitNeels Hofmeyr2015-12-241-3/+5
| | | | | 86ec311896dd5d4 adds compiler warnings on 64bit. The build is clean otherwise, so let's keep it that way.
* Add osmo_prim_op_names[] symbol and _SAP_SS7_BASE defineHarald Welte2015-12-232-1/+11
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* msgb: Let msgb_hexdump be more tolerantJacob Erlbeck2015-12-211-7/+39
| | | | | | | This patch makes msgb_hexdump accept out of range lXh pointers and shows info about them instead of aborting the dump entirely. Sponsored-by: On-Waves ehf
* msgb: Add msgb_resize_area and msgb_copyJacob Erlbeck2015-12-211-0/+91
| | | | | | | | | | | | | | | These functions originate from openbsc/src/gprs but are generic msgb helper functions. msgb_copy: This function allocates a new msgb, copies the data buffer of msg, and adjusts the pointers (incl. l1h-l4h) accordingly. msgb_resize_area: This resizes a sub area of the msgb data and adjusts the pointers (incl. l1h-l4h) accordingly. Sponsored-by: On-Waves ehf
* some comments / fixed typosNeels Hofmeyr2015-12-211-1/+1
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* LaPDm: Refuse SUSPEND/RESUME/RECONNECT in BTS modeHarald Welte2015-12-191-0/+17
| | | | | | The primitives for SUSPEND, RESUME and RECONNECT are only permitted on the MS side of the LAPDm link, not on the BTS side. So we should check for this and reject, accordingly.
* ns: Force a defined state when sending NS RESETJacob Erlbeck2015-12-171-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | Currently the state is assumed to remain the same while the reset procedure is active. While this works correctly in general, a single unexpected BLOCK_ACK or UNBLOCK_ACK can change the state but will not stop the reset procedure. The leads to repeated RESET messages, where the corresponding RESET_ACK is ignored. This is a stable state which can only be left by manual intervention or by reception of a RESET message from the peer. This commit changes the RESET timeout handler to set the state to BLOCKED/RESET when sending the new NS RESET message. Note that this should ensure a clean restart even if the state has been screwed up. It does not fix the handling of BLOCK_ACK or UNBLOCK_ACK in abnormal cases. Addresses: gprs_ns.c:349 NSEI=8895 Tx NS RESET (NSVCI=8895, cause=O&M intervention) gprs_ns.c:878 NSVCI=8895 Rx NS RESET ACK (NSEI=8895, NSVCI=8895) gprs_ns.c:887 NS RESET ACK Discarding unexpected message for NS-VCI 8895 from SGSN NSEI=8895 Ticket: OW#1551 Sponsored-by: On-Waves ehf
* stats: Fix compiler warning about losing constHolger Hans Peter Freyther2015-12-171-1/+1
| | | | | | | stats_statsd.c: In function ‘osmo_stats_reporter_statsd_send_item’: stats_statsd.c:154:15: warning: initialization discards ‘const’ qualifier from pointer target type char *unit = desc->unit; ^
* ns/stats: Add missing osmo_stat_item_group_free to gprs_nsvc_deleteJacob Erlbeck2015-12-171-0/+1
| | | | | | | | | | | | | | | | | | | | | The stat item group is not removed by gprs_nsvc_delete which will corrupt the group list. Addresses: valgrind tests/gbproxy/gbproxy_test [...] ==4541== Invalid write of size 4 ==4541== at 0x4071ACA: __llist_add (linuxlist.h:65) ==4541== by 0x4071ACA: llist_add (linuxlist.h:81) ==4541== by 0x4071ACA: osmo_stat_item_group_alloc (stat_item.c:112) ==4541== by 0x407EDFD: gprs_nsvc_create (gprs_ns.c:244) ==4541== by 0x408109D: gprs_ns_instantiate (gprs_ns.c:1388) ==4541== by 0x804CFD3: test_gbproxy_ident_changes (gbproxy_test.c:1501) ==4541== by 0x805FBD3: main (gbproxy_test.c:5803) Sponsored-by: On-Waves ehf
* RSL: Add enum + TLV definitions for ip.access style embedded IEsHarald Welte2015-12-132-0/+27
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* stats: Add OSMO prefix to STAT_ITEM_NOVALUE_IDJacob Erlbeck2015-12-081-3/+3
| | | | | | | This symbol is globally visible and therefore should have an OSMO prefix like the other identifiers exported by stat_item.h. Sponsored-by: On-Waves ehf
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