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* vty: track parent nodes also for telnet sessionsNeels Hofmeyr2019-11-241-30/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep track of parent nodes and go back hierarchically, not only for .cfg file reading, but also for telnet VTY sessions. A long time ago cfg file parsing was made strictly hierarchical: node exits go back to parent nodes exactly as they were entered. However, live telnet VTY sessions still lacked this and depended on the go_parent_cb(). From this commit on, implementing a go_parent_cb() is completely optional. The go_parent_cb() no longer has the task to determine the correct parent node, neither for cfg files (as already the case before this patch) nor for telnet VTY sessions (added by this patch). Instead, a go_parent_cb() implementation can merely take actions it requires on node exits, for example applying some config when leaving a specific node. The node value that is returned by the go_parent_cb() and the vty->node and vty->index values that might be set are completely ignored; instead the implicit parent node tracking determines the parent and node object. As a side effect, the is_config_node() callback is no longer needed, since the VTY now always implicitly knows when to exit back to the CONFIG_NODE. For example, osmo_ss7_is_config_node() could now be dropped, and the osmo_ss7_vty_go_parent() could be shortened by five switch cases, does no longer need to set vty->node nor vty->index and could thus be shortened to: int osmo_ss7_vty_go_parent(struct vty *vty) { struct osmo_ss7_asp *asp; struct osmo_xua_server *oxs; switch (vty->node) { case L_CS7_ASP_NODE: asp = vty->index; /* If no local addr was set */ if (!asp->cfg.local.host_cnt) { asp->cfg.local.host[0] = NULL; asp->cfg.local.host_cnt = 1; } osmo_ss7_asp_restart(asp); break; case L_CS7_XUA_NODE: oxs = vty->index; /* If no local addr was set, or erased after _create(): */ if (!oxs->cfg.local.host_cnt) osmo_ss7_xua_server_set_local_host(oxs, NULL); if (osmo_ss7_xua_server_bind(oxs) < 0) vty_out(vty, "%% Unable to bind xUA server to IP(s)%s", VTY_NEWLINE); break; } return 0; } Before parent tracking, every program was required to write a go_parent_cb() which has to return every node's parent node, basically a switch() statement that manually traces the way back out of child nodes. If the go_parent_cb() has errors, we may wildly jump around the node tree: a common error is to jump right out to the top config node with one exit, even though we were N levels deep. This kind of error has been eliminated for cfg files long ago, but still exists for telnet VTY sessions, which this patch fixes. This came up when I was adding multi-level config nodes to osmo-hlr to support Distributed GSM / remote MS lookup: the config file worked fine, while vty node tests failed to exit to the correct nodes. Change-Id: I2b32b4fe20732728db6e9cdac7e484d96ab86dc5
* osmo_sockaddr_str: deprecate osmo_sockaddr_str_*_32n()Neels Hofmeyr2019-11-241-2/+16
| | | | | | | | | Follow up for patch I3cf150cc0cc06dd36039fbde091bc71b01697322 osmo_sockaddr_str_{from,to}_32n actually use host byte order. Deprecate these and introduce a more accurately named version ending in h. Change-Id: Ic7fc279bf3c741811cfc002538e28e8f8560e338
* utils: add osmo_strnchr()Neels Hofmeyr2019-11-241-0/+22
| | | | | | | When finding a char in a string, I want to be able to limit the search area by size, not only by nul terminator. Change-Id: I48f8ace9f51f8a06796648883afcabe3b4e8b537
* utils_test: add osmo_print_n_test()Neels Hofmeyr2019-11-241-0/+2
| | | | | | | | | | | | A couple of times recently I've needed to copy out a substring to a buffer with limited size. Use of strncpy() or osmo_strlcpy() are nontrivial here. I wanted to have a dedicated function. After I wrote that function with a test, I noticed that I had already implemented the same thing a while ago, as osmo_print_n() :P So here is just the test. Change-Id: Ia716abdc1f58af6065b84f4f567388a32a7b39fc
* GSUP: rename E_ROUTING_ERROR to ROUTING_ERRORNeels Hofmeyr2019-11-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | GSUP routing was introduced when adding the E interface. Hence that was the first realm where routing errors could occur. I did notice back then that this message type was special: it does not convey a response to a particular message kind -- it does not make sense, for example, to return an Updating Location Error cause, and do that for all conceivable message types. Instead, this tells the sender that a deeper error exists, i.e. that the desired peer is completely gone and unreachable. I did not foresee though that for D-GSM, there would also be arbitrary GSUP proxy routing, and that this error is not limited to E interface semantics. From today's point of view, adding the "_E_" in the name was a mistake. Remove that "_E_" to yield OSMO_GSUP_MSGT_ROUTING_ERROR (with unchanged message type discriminator), but provide a #define linking the old name OSMO_GSUP_MSGT_E_ROUTING_ERROR to the new one. The only visible change should be that osmo_gsup_message_type_names[] now returns the new name without "_E_". I am not aware of any regression test fallout from that. Change-Id: Ic8e8bd11522d6c51ac7aaf946516cbce26bc6e1e
* fix osmo_escape_str_c() and osmo_quote_str_c()Neels Hofmeyr2019-11-231-30/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | The osmo_escape_str_c() and osmo_quote_str_c() functions return truncated results when characters need escaping. For example: osmo_quote_str_c(NULL, "foo"); --> "foo" osmo_quote_str_c(NULL, "foo\n"); --> "foo\n osmo_quote_str_c(NULL, "foo\tbar\t\n"); --> "foo\tbar\t Implement these _c variants using OSMO_NAME_C_IMPL() to always allocate sufficient memory. However, current osmo_escape_str_buf2() and osmo_quote_str_buf2() fail to return the required buffer size (even though that information is readily avaiable), so these don't qualify for accurate use of OSMO_NAME_C_IMPL(). Hence, move the implementations of osmo_escape_str and osmo_quote_str to an internal static function that returns the characters needed, so that all dynamically allocating implementations can return un-truncated results. Of course, external callers would also benefit from escape/quote API that accurately returns the amount of characters needed, but I am not changing public API in this patch, on purpose, ... yet. Change-Id: I16c08eced41bf1b7acf6e95f658068ace99ca4c8
* osmo_sockaddr_str: API doc: fix 32bit addr mixup of host/network byte orderNeels Hofmeyr2019-11-231-6/+8
| | | | | | | | | | | | | | | | | | Of course both v4 and v6 addresses are kept in network byte order when represented in bytes, but when writing, I somehow must have assumed that inet_pton() returns host byte order. Fix that mixup in the API docs: osmo_sockaddr_str_from_32() and osmo_sockaddr_str_to_32() actually use network byte order. osmo_sockaddr_str_from_32n() and osmo_sockaddr_str_to_32n() actually use host byte order, though reflecting 'n' in their name. sockaddr_str_test: use hexdump instead of %x to show the osmo_sockaddr_str_to_32*() conversions so that the error becomes obvious. (Printing %x reverses the bytes again and made it look correct.) Change-Id: I3cf150cc0cc06dd36039fbde091bc71b01697322
* fix DLSMS logging category color: '[1:38m' isn't actually definedNeels Hofmeyr2019-11-231-1/+1
| | | | | | | Instead it apparently renders as bright white, so just use that constant instead. Change-Id: Ic775b6e37ccf61dc71a540b41d6a16a8a9291dc2
* logging.h: define ansi color constantsNeels Hofmeyr2019-11-231-8/+8
| | | | | | | | | | | It's hard to figure out what color logging categories have with those ANSI color code strings. Instead, define these OSMO_LOGCOLOR_* constants. Naming: commonly, the logging.h header has the "LOG" prefix in the name, but it seems saner to include the OSMO_ prefix: it seems too likely that some libosmocore user somewhere already has defined "LOGCOLOR_RED" somewhere. Change-Id: I03b6b1f73ae7ee61d37ff921e071a3d0881d3e9a
* libosmogsm: add support for XOR authenticationDaniel Willmann2019-11-222-1/+188
| | | | | Change-Id: I1afaf0a9e2dce43aec87964bacefb21ed4d3d565 Related: OS#2475
* utils.c: fix various inaccurate API doc about return valuesNeels Hofmeyr2019-11-211-4/+3
| | | | Change-Id: I9ee6416decd23f8d5d634197620a63ae408cead3
* add osmo_sockaddr_str_cmp()Neels Hofmeyr2019-11-211-0/+74
| | | | | | | | | | | Currently planned user: for Distributed GSM in osmo-hlr: setting per-MSC service addresses in VTY: replace/remove existing entries. osmo_sockaddr_str_cmp() is useful to catch identical resulting IP addresses, regardless of differing strings (e.g. '0::' and '::' are equal but differ in strings). Change-Id: I0dbc1cf707098dcda75f8e07c1b936951f9f9501
* logging/vty: fix: do not close stderr in vty_close()Vadim Yanitskiy2019-11-211-1/+1
| | | | | | | | | Since Icdeaea67a06da3a2f07b252e455629559ecc1829, we use stderr for printing warnings while parsing the VTY configuration files. Make sure we do not close() stderr. Otherwise stderr logging gets broken. Change-Id: I6ecc85555d102f5911d50ed5ac54933c766fa84d Fixes: Icdeaea67a06da3a2f07b252e455629559ecc1829
* logging/vty: fix vty_read_file(): do not write warnings to stdinVadim Yanitskiy2019-11-211-1/+5
| | | | | | | | | Setting vty->fd to 0 is a bad idea, which may cause the process to write() warnings to its own _stdin_ (yes, it's possible). For example, when a configuration file contains deprecated logging commands. Let's use stderr by default. Change-Id: Icdeaea67a06da3a2f07b252e455629559ecc1829
* logging/vty: fix: actually ignore deprecated logging commandsVadim Yanitskiy2019-11-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | We shall not prevent programs from starting if their configuration files contain deprecated 'logging level ...' commands. Just print a warning and return CMD_SUCCESS instead of CMD_WARNING. While writing a unit test, another funny bug has been uncovered. Parsing of a deprecated command indeed triggers a deprecation warning, originated from libosmovty's log_deprecated_func(). This function simply calls vty_out(), but... Since the invocation of the vty_out() happens _before_ the VTY is initialized, the process is actually writing that warning to its own stdin! Most likely, because we use talloc_zero() to allocate a new instance of struct 'vty'. As a side effect, the evil warning magically appears in the output of 'make check', breaking the test statistics. Let's work around this bug for now by redirecting stdin to /dev/null. Change-Id: Ia934581410cd41594791d4e14ee74c16abe1009a Fixes: Ic9c1b566ec4a459f03e6319cf369691903cf9d00
* logging/vty: use LOG_LEVEL_ARGS in logging_vty_add_deprecated_subsys()Vadim Yanitskiy2019-11-211-2/+1
| | | | Change-Id: I862c3cce0147ee8cf4013501132584ea09c58b53
* logging/vty: do not print deprecated logging commands to stdoutVadim Yanitskiy2019-11-201-1/+0
| | | | | | | | Yes, we don't really need to poison stdout, as some osmo-* binaries (like osmo-gapk) may want to use it for non-logging purposes. This printf() call looks like a debugging leftover. Change-Id: Ida35865b1c0bb3d3567918f8e89c6551c6b34103
* GPRS/BSSGP: introduce bssgp_bvc_ctx_free()Vadim Yanitskiy2019-11-092-0/+10
| | | | | | | | | | So far we had a function to allocate a new bssgp_bvc_ctx, but not the opposite one. Let's finally introduce it, so it will be used at least in OsmoPCU. Please note that the new symbol has 'bssgp_' prefix, not 'btsctx_'. Change-Id: Ia78979379dbdccd6e4628c16f00d0c06d9212172
* select: Make file descriptor lists per-threadHarald Welte2019-11-071-3/+17
| | | | | | | | | | In a multi-threaded environemnt, it's likely that each thread will have its own, distinct set of file descriptors that it wants to watch. Hence, let's make the osmo_fd_* functions configure not one global list of file descriptors, but a thread-local list of file descriptors. Change-Id: I5082ed3e500ad1a7516e1785bc57e008da2fac9a
* gsm: gsm_utils: Fix return type of API ms_class_gmsk_dbm() and add unit testsPau Espin Pedrol2019-11-041-2/+2
| | | | | | | | Only known user of API is in osmocom-bb and it compiles fine after the change. Related: OS#4244 Change-Id: Ia10345008b3aca50b30482ef3b852b03eca71995
* gsm_04_08.h: Introduce API osmo_gsm48_rfpowercap2powerclass()Pau Espin Pedrol2019-11-032-0/+22
| | | | | Related: OS#4244 Change-Id: I32e9cc1c2397b44f0d48db2acdf782a821365b63
* add osmo_sockaddr_str_is_nonzero()Neels Hofmeyr2019-11-011-0/+29
| | | | | | | | | | | | | | | | | | | | | Often, an IP address of 0.0.0.0 is considered an unset value (for clients requiring a server address; not for listening on "any"). osmo_sockaddr_str_is_set() does return false when the port is 0, but there is no simple way to tell whether the IP address is actually set to a server address. Add osmo_sockaddr_str_is_nonzero() to return false if: - the port is zero, or - the IP address is zero (0.0.0.0 or ::0), or - the IP address cannot be parsed. A practical use example: osmo-msc so far accepts an RTP IP address of 0.0.0.0 as valid. I noticed when trying to trigger error handling from a ttcn3 test. osmo-msc can use this function to reject invalid addresses from MGCP messages. Related: I53ddb19a70fda3deb906464e1b89c12d9b4c7cbd (osmo-msc) Change-Id: I73cbcab90cffcdc9a5f8d5281c57c1f87b2c3550
* fsm: refuse state chg and events after termNeels Hofmeyr2019-10-291-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refuse state changes and event dispatch for FSM instances that are already terminating. It is assumed that refusing state changes and events after FSM termination is seen as the sane expected behavior, hence this change in behavior is merged without being configurable. There is no fallout in current Osmocom code trees. fsm_dealloc_test needs a changed expected output, since it is explicitly creating complex FSM structures that terminate. Currently no other C test in Osmocom code needs adjusting. Rationale: Where multiple FSM instances are collaborating (like in osmo-bsc or osmo-msc), a terminating FSM instance often causes events to be dispatched back to itself, or causes state changes in FSM instances that are already terminating. That is hard to avoid, since each FSM instance could be a cause of failure, and wants to notify all the others of that, which in turn often choose to terminate. Another use case: any function that dispatches events or state changes to more than one FSM instance must be sure that after the first event dispatch, the second FSM instance is in fact still allocated. Furthermore, if the second FSM instance *has* terminated from the first dispatch, this often means that no more actions should be taken. That could be done by an explicit check for fsm->proc.terminating, but a more general solution is to do this check internally in fsm.c. In practice, I need this to avoid a crash in libosmo-mgcp-client, when an on_success() event dispatch causes the MGCP endpoint FSM to deallocate. The earlier dealloc-in-main-loop patch fixed part of it, but not all. Change-Id: Ia81a0892f710db86bd977462730b69f0dcc78f8c
* add osmo_fsm_set_dealloc_ctx(), to help with use-after-freeNeels Hofmeyr2019-10-291-9/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a simpler and more general solution to the problem so far solved by osmo_fsm_term_safely(true). This extends use-after-free fixes to arbitrary functions, not only FSM instances during termination. The aim is to defer talloc_free() until back in the main loop. Rationale: I discovered an osmo-msc use-after-free crash from an invalid message, caused by this pattern: void event_action() { osmo_fsm_inst_dispatch(foo, FOO_EVENT, NULL); osmo_fsm_inst_dispatch(bar, BAR_EVENT, NULL); } Usually, FOO_EVENT takes successful action, and afterwards we also notify bar. However, in this particular case, FOO_EVENT caused failure, and the immediate error handling directly terminated and deallocated bar. In such a case, dispatching BAR_EVENT causes a use-after-free; this constituted a DoS vector just from sending messages that cause *any* failure during the first event dispatch. Instead, when this is enabled, we do not deallocate 'foo' until event_action() has returned back to the main loop. Test: duplicate fsm_dealloc_test.c using this, and print the number of items deallocated in each test loop, to ensure the feature works. We also verify that the deallocation safety works simply by fsm_dealloc_test.c not crashing. We should probably follow up by refusing event dispatch and state transitions for FSM instances that are terminating or already terminated: see I0adc13a1a998e953b6c850efa2761350dd07e03a. Change-Id: Ief4dba9ea587c9b4aea69993e965fbb20fb80e78
* gprs_ns_vty: return success for disabled FR/GREOliver Smith2019-10-291-4/+0
| | | | | | | | | | | | Do not return a warning and therefore fail parsing the config when the "encapsulation framerelay-gre local-ip" command is used and FR/GRE is disabled. Having this in the config does no harm and allows keeping the same config if it is enabled later. This fixes the currently failing vty tests for osmo-sgsn. Fixes: a0c8195ad37292ab800a6c777fc28383995b4b64 ("vty: Return error if cmd returns CMD_WARNING while reading cfg file") Change-Id: Ic225232fbfca49ba868427eaf898e1f6e34e1ca8
* gsm0508: add functions to calculate beginning of a blockPhilipp Maier2019-10-282-0/+158
| | | | | | | | | | | The calculation of the beginning of a block for TCH/F, TCH/H and FACCH can be challenging since those channels are affected by the diagonal interleaving of the TCH channels. However, GSM 05.02 Section 7 Table 1 of 5 specifies how the blocks are distributed over the TDMA frame interval. Lets add a mapping function that is based on that table Related: OS#3803 Change-Id: I3d71c66f8c401f5afbad9b1c86c24580dab9e0ce
* vty: Return error if cmd returns CMD_WARNING while reading cfg filePau Espin Pedrol2019-10-281-2/+1
| | | | | | | Otherwise bad configurations can easily sneak in and produce unexpected behavior. Change-Id: Ic9c1b566ec4a459f03e6319cf369691903cf9d00
* socket.c: build multiaddr socket API helpers only if used by public APIsPau Espin Pedrol2019-10-241-0/+4
| | | | | | | | | Those two functions are only used by osmo_sock_init2_multiaddr(), which is only built if HAVE_LIBSCTP is defined. Avoid compiler warning about unusued function helpers if osmo_sock_init2_multiaddr() is not being built. Change-Id: I52769d6b8f70af1a8bda23d60b3230a932e71fab
* socket: Remove unneeded condition check in osmo_sock_init2_multiaddr()Pau Espin Pedrol2019-10-211-15/+15
| | | | | | | | | Since we return error at the start of the function if proto != IPPROTO_SCTP, it makes no sense to check for proto != IPPROTO_UDP later on. Fixes: CID#205088 Change-Id: Ibba7eacaa9debb77d536d47dc85170c5ee79e479
* socket: Introduce API osmo_sock_init2_multiaddr()Pau Espin Pedrol2019-10-182-2/+288
| | | | | | | | | This API will be used by libosmo-netif's osmo_stream for SCTP sockets, which in turn will be used by libosmo-sccp to support multi-homed connections. Related: OS#3608 Change-Id: Ic8681d9e093216c99c6bca4be81c31ef83688ed1
* tdef: Return correct snprintf value for osmo_tdef_range_str_buf()Pau Espin Pedrol2019-10-181-2/+4
| | | | | | | | | | len provides extra information in the case the buffer was too small, because it tells the caller "the number of characters (excluding the terminating null byte) which would have been written to the final string if enough space had been available" (man snprintf). Change-Id: Icafe559e19a92e2ae72fdd0dd2d9a394b1eda878
* vty: Fix go_parent_cb not called for indented nodes at end of cfg filePau Espin Pedrol2019-10-111-0/+4
| | | | | | | | | | | | | | | | | Without this patch, for instance in this cfg file below, go_parent_cb is not called for nodes such as "listen" and "cs7": """ line vty no login cs7 instance 0 xua rkm routing-key-allocation dynamic-permitted listen m3ua 2905 accept-asp-connections dynamic-permitted local-ip 127.0.0.1 """ Related: OS#3608 Change-Id: Ia6d88c0e63d94ba99e950da6efbc4c1871070012
* socket.c: Move glibc workarounds to same place in addrinfo_helper()Pau Espin Pedrol2019-10-101-19/+10
| | | | Change-Id: Ifc3a30881f865f88bcfc1307a3c89c1ab79eecd4
* logging: Introduce mutex API to manage log_target in multi-thread envsPau Espin Pedrol2019-10-095-94/+199
| | | | | | | | | | | | | | | | | | | | log_enable_multithread() enables use of locks inside the implementation. Lock use is disabled by default, this way only multi-thread processes need to enable it and suffer related complexity/performance penalties. Locks are required around osmo_log_target_list and items inside it, since targets can be used, modified and deleted by different threads concurrently (for instance, user writing "logging disable" in VTY while another thread is willing to write into that target). Multithread apps and libraries aiming at being used in multithread apps should update their code to use the locks introduced here when containing code iterating over osmo_log_target_list explictly or implicitly by obtaining a log_target (eg. osmo_log_vty2tgt()). Related: OS#4088 Change-Id: Id7711893b34263baacac6caf4d489467053131bb
* vty: Optionally Set/replace cfg file during cmd 'write file'Pau Espin Pedrol2019-10-071-2/+6
| | | | | | | | | | | This way if the process is started with no file associated (eg. no -c param and default cfg path doesn't exist), config can be later saved into a file by passing the parameter. Otherwise, until now this message was displayed: Can't save to configuration file, using vtysh. Related: OS#4024 Change-Id: I38edcf902a08b6bd0ebb9aa6fc1a7041421af525
* tdef: Introduce min_val and max_val fieldsPau Espin Pedrol2019-10-072-10/+81
| | | | | | | | | | | This is useful for timers expected to have a range of valid or expected values. Validation is done at runtime when timer values are set by the app or by the user through the VTY. Related: OS#4190 Change-Id: I4661ac41c29a009a1d5fc57d87aaee6041c7d1b2
* gsup: add OSMO_GSUP_SUPPORTED_RAT_TYPES_IE and OSMO_GSUP_CURRENT_RAT_TYPE_IENeels Hofmeyr2019-09-281-0/+35
| | | | | | | | | | | | | | OSMO_GSUP_SUPPORTED_RAT_TYPES_IE corresponds to the Supported RAT Types Indicator from 3GPP TS 29.002. See 8.1.2 MAP_UPDATE_LOCATION service, which indicates the capabilities of the MSC/VLR to the HLR. So far, have room for eight RAT types in the gsup_msg. That is an arbitrary random choice without any rationale. OSMO_GSUP_CURRENT_RAT_TYPE_IE is useful to communicate the currently used RAN / RAT type of the current subscriber during Location Updating Request. Change-Id: I93850710ab55a605bf61b95063a69682a2899bb1
* cosmetic: clarify c_iflag in osmo_serial_init()Harald Welte2019-09-281-1/+1
| | | | | | | We first set the ISTRIP bit only to remove it in the next line. Let's try to avoid confusing the reader. Change-Id: Icba43dd4b6dc4f9c7f8fcf91d24b3baac4e0c74a
* sim/class_tables: Fix typo in commentHarald Welte2019-09-281-1/+1
| | | | Change-Id: I837c8303a7bb47b690cc8841cf5cafba8ac338af
* tdef: fixup osmo_tdef_set()Neels Hofmeyr2019-09-111-8/+6
| | | | | | | | | | | | I missed code review, so here are my comments in form of a follow-up patch for Id56a1226d724a374f04231df85fe5b49ffd2c43c. - Fix 'as_unit' arg name to 'val_unit' as in the C file and API doc. - Explain rounding-up behavior of value conversion in API doc. - Use osmo_tdef_get_entry() instead of a loop. Related: OS#4190 Change-Id: Ia91c2f17e40fb9e79ffa5a7f28ce9c3605664402
* tdef: Introduce API osmo_tdef_set()Pau Espin Pedrol2019-09-071-0/+20
| | | | | | | | | This API is already useful for users willing to set a given timer to a given value. It will also contain code later that checks for value being inside valid range for that timer. Related: OS#4190 Change-Id: Id56a1226d724a374f04231df85fe5b49ffd2c43c
* Introduce BTS_FEAT_ETWS_PN for communicating ETWS PN capabilityHarald Welte2019-09-051-0/+1
| | | | | | | | | | As 3GPP doesn't specify how the BSC shall communicate ETWS Primary Notifications over Abis/RSL, we have to use a vendor-specific RSL message for this. And in order to know if the peer supports this feature, we introduces BTS_FEAT_ETWS_PN. Change-Id: I89c24a81ada6627694a9632e87485a61cbd3e680 Related: OS#4046, OS#4047
* gsm_08_58: Add vendor-specific Message Type for ETWS Primary WarningHarald Welte2019-09-051-0/+1
| | | | | Change-Id: I36fc2ffc22728887d1cb8768c7fcd9739a8ec0fc Related: OS#4046, OS#4047
* codec/ecu: Introduce new generic Error Concealment Unit abstractionHarald Welte2019-09-023-1/+170
| | | | | | | | | | | | | | | | | | | | We don't want to expose the details of a given ECU implementation to the user (e.g. osmo-bts), but have a generic abstraction layer where an ECU implementation can simply register a few call-back functions with the generic core. As the developer and copyright holder of the related code, I hereby state that any ECU implementation using 'struct osmo_ecu_ops' and registering with the 'osmo_ecu_register()' function shall not be considered as a derivative work under any applicable c