Commit Graph

925 Commits

Author SHA1 Message Date
Max b0a4234c49 Add abis_nm_fail_evt_vrep to libosmogsm.map
Change-Id: If56b521429af497ddd5a47170eb2c085b1fb78ba
2017-01-19 09:07:33 +00:00
Neels Hofmeyr 0aeda1b17f doc: fix doxygen 'utils' group closing brace
osmo_strlcpy() was excluded from the group because the closing brace was above
it.

Change-Id: I6701261f5854342ac4cd4f2da62e49eb40362938
2017-01-18 01:50:39 +00:00
Max 6e8c172476 libosmogsm.map: fix typo
Change-Id: I71413fbe703e459782a235e5b1d8487265de3780
Related: OS#1615
2017-01-17 15:37:06 +00:00
Max ace80bb569 Mark deprecated function as such
Mark abis_nm_debugp_foh() function superseded by macro with the same
name as deprecated.

Change-Id: I2d3ea2b56aff6b687f72f832360b8cb8a24164e9
2017-01-16 08:53:20 +00:00
Neels Hofmeyr df83eced68 doc: clarify osmo_strlcpy() doc
Stating that it 'truncates src' is misleading. Also clarify whether siz
includes the space needed for the terminating NUL.

Change-Id: I01c1a94408b471f7f54576178a60938bf9ee3261
2017-01-15 17:58:29 +00:00
Harald Welte f2899c674e Always include <osmocom/core/talloc.h> and not <talloc.h>
In EMBEDDED builds we don't have a system-wide talloc

Change-Id: Icc526016bda45b36e584afee8669996752d6d89c
2017-01-15 18:04:02 +01:00
Harald Welte 1c67e754b8 configure.ac: Introduce --disable-ctrl
Using --disable-ctrl, one can disable the building of libosmoctrl.

The 'embedded' target will also automaticall disable ctrl.

Change-Id: I6912396338c5b23ae860fef2a55854d6df9a579d
2017-01-15 18:04:02 +01:00
Max 2f0b0c955b Fix compilation warnings: missing includes: gsm0411_utils.c, lapd_core.c, oap_test.c
Change-Id: Id524327b3f44e22e3aa44c5e8e4965b084cb326a
2017-01-13 09:36:25 +00:00
Neels Hofmeyr c32bfd5824 gprs_ns_vty: guard against duplicate VTY elements
The TbfTest in osmo-pcu calls gprs_ns_vty_init() repeatedly, which aborts
because of duplicate VTY elements. Fix this by skipping the VTY init if
it already happened.

Change-Id: I05c7f25a4e873ae76b206819180b8b043b60103e
2017-01-12 22:32:36 +01:00
Max 1251afe254 Add abis_nm_fail_evt_vrep() function
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
2017-01-11 18:12:32 +01:00
Max 87218edb9a LAPD: improve logging
Log error cause and state names in case of SABM errors.

Change-Id: I2c7fa276e03f8b14ba41cc1fb6e19d0aae77d127
2017-01-10 23:28:40 +00:00
Jean-Francois Dionne d02c8af6cc DTX: fix AMR SID-FIRST detection
Max's note: adjusted test output.

Change-Id: I46477c631bf86345cb757f31d7f2e2935b12adcc
Related: OS#1801
2017-01-10 23:28:12 +00:00
Max 85908a9c2f Add value strings for Probable Cause Type
Add string representation of Probable Cause Type from 3GPP TS 12.21 §
9.4.43.

Change-Id: I9fe14ed3b5398f59dd06a509e4d419e074cc20a7
Related: OS#1615
2017-01-10 17:49:23 +01:00
Harald Welte 3419391422 fsm: Add VTY introspection of osmo_fsm and their instances
Change-Id: I89212e4f149f019099115a85bab353c04170df90
2017-01-07 12:21:11 +00:00
Harald Welte 8808bb49a2 Add osmo_fsm_find_by_name() and avoid registering FSM with same name
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
2017-01-07 12:20:59 +00:00
Harald Welte addeaa39b1 vty: OSMO_ASSERT() if two identical commands are installed
When the caller installs two identical commands at a given VTY node, the
result is that neither of the two commands can ever be executed: The VTY
would always complain about "Ambiguous command.".  Let's fail fast at
program start when two identical commands are intalled.

Change-Id: I85ff4640ebb3d8b75a6a9ab5d2f668edb5b7189e
2017-01-07 12:14:48 +00:00
Max ecbcdf52ec Add OML Failure Event Report support
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
2017-01-06 18:05:49 +01:00
Max 07352fee09 Add event cause string descriptions
Add human-readable descriptions to event causes from 3GPP TS 12.21 §
9.4.43.

Change-Id: Id173c978616c98b7831fbafb5401064257f1cf73
Related: OS#1615
2017-01-06 11:37:09 +00:00
Pravin Kumarvel 848de8f1df Add function to get uninterrupted bit run
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
2017-01-06 10:37:42 +00:00
Max dbd3a92f70 Add parsed TLV helpers from OsmoBTS
Add functions to copy and merge parsed TLV structures from OsmoBTS.

Change-Id: Ieaaaed19da9c069fe451faa53d24c5b84d7d5615
2017-01-06 10:21:11 +00:00
Max 0bee65c0d8 Add OML definitions from OsmoBTS
Change-Id: I9c3bc15662949654e7bba6aad5488c69ee7d0c45
Related: OS#1615
2017-01-06 10:21:11 +00:00
Max edc8db21fa Remove direct logging
Drop perror() calls from GSMTAP code: it's application job to do the
proper logging - library code should not write to stdout/stderr
directly.

Change-Id: Ifa149e65d76c6e64fda2946725c16672233aff2e
2017-01-06 10:12:24 +00:00
Harald Welte 6cfa56ba0c gprs_cipher_core: Use typecase to avoid sanitizer error
This resolves
gprs_cipher_core.c:118:37: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'

Change-Id: Ib1866595030ad9d11c886621ce69632462befa3a
2017-01-06 10:03:30 +00:00
Neels Hofmeyr 3faa014805 fsm: term: get parent pointer as late as possible
During FSM instance termination, fetch the parent pointer every time just
before using it, in case the child termination or cleanup callback wish to
change anything about the parent, e.g. to prevent event dispatch.

This patch was created to try and fix a problem that was in the end solved
differently. There is no actual need or use case for this at the moment, but it
generally makes sense to get the parent pointer as late as possible.

Change-Id: I999d7f29ba10281d4005c5163130bb2d80148362
2016-12-24 18:44:41 +01:00
Neels Hofmeyr c014f606d0 fsm: factor out osmo_fsm_inst_term_children() from osmo_fsm_inst_term()
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
2016-12-24 17:11:52 +00:00
Neels Hofmeyr eeacf906dd fsm: move LOGPFSMSRC and LOGPFSMLSRC to .h
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
2016-12-24 17:11:52 +00:00
Neels Hofmeyr c7155df3ec fsm: log calling file+line for error "event for NULL fi"
Change-Id: I1970773440865f1415004bcf0164603468acf90b
2016-12-24 17:11:52 +00:00
Neels Hofmeyr b805cc1992 fsm: doc: add missing file, line args; fix ws + tweak on one line
Change-Id: I6af0d43ab0082e45df676c1d69b26310b59a8031
2016-12-24 17:11:52 +00:00
Harald Welte 1514f34dcf serial.c: file descriptor '0' is a valid value
if stdin/stdout/stderr are all closed by our environment, it may very
well be that opening a serial port returns fd == 0.

Change-Id: Ifd9670260883a35da0629369e0d49e467d5b4d72
2016-12-24 17:59:36 +01:00
Harald Welte d2510459a8 serial.c: Fix fd leak in case of fcntl() error paths
Change-Id: I14f934957e1086b803f3a7b9b5e6d602380f0be2
Fixes: Coverity CID 158987
2016-12-24 17:58:13 +01:00
Harald Welte c68ce3b9fe serial.c: Some ports don't support TIOCMBIS for RTS/CTS control
So let's ignore the error we might get from this opreration.

Change-Id: I69dad90403355b6512c3bf4c7fd10dd1dd985f01
2016-12-23 22:59:27 +01:00
Harald Welte 1db37820aa serial: Open devie in non-blocking mode and then switch to blocking
There are some serial ports that apparently block during the open in
some circumstances.  We don't want that.  We want to either open it
immediately, or fail fast.

Change-Id: I626b138574bc50f4f4b09c4d609f3623ff512dff
2016-12-23 22:50:10 +01:00
Harald Welte a0f74f218b add CRC16-CCITT to libosmocore
Use the implementation from Linux lib/crc-ccitt.c (GPLv2)

Change-Id: I26bb54038f5ab36bbb34da7f5fb8ae6c0c0386a4
2016-12-23 22:16:08 +01:00
Harald Welte 5e5954db8b Fix erroneously AGPL licensed file in libosmocore.
libosmocore itself is GPLv2-or-later.  Only the test cases are permitted
to be AGPL licensed.

Change-Id: I62f2eed6305bfa11a64c6d633e08aabeaf9f0b10
2016-12-22 14:58:58 +01:00
Neels Hofmeyr 7309e19358 fsm: log tweak: upon free, say 'Freeing instance'
Logging 'Release' is a bit ambiguous. At first I tought a subscriber
connection was being released, IMHO 'Freeing instance' better describes that
we are freeing an osmo_fsm_inst.

Change-Id: I5cf99707d2ba5620b2988f777fa39cc806ec0212
2016-12-21 14:38:18 +01:00
Neels Hofmeyr b6d58e8cc0 doc: fix typo for osmo_hexparse
Change-Id: Ifc2b499792fda378c807c678b8e06630cb64d273
2016-12-21 14:38:18 +01:00
Neels Hofmeyr 18080960e1 utils.h: add OSMO_STRINGIFY and OSMO_VALUE_STRING macros
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
2016-12-21 10:37:13 +00:00
Max 4e72ee0d0f Catch-up with git version tags
* update debian/changelog
* update TODO-RELEASE
* add comments to Makefile.am and TODO-RELEASE to simplify the process
  in future
* add link to libtool docs to Makefile.am to simplify LIBVERSION
  maintenance

Related: OS#1861
Change-Id: I22c257e357f597519120232d742d6a61289db021
2016-12-21 10:31:17 +00:00
Neels Hofmeyr 06ac9b40ed fsm: term: safer iteration to remove all child FSMs
When terminating child FSMs, restart iteration after every child, to make
sure that we don't terminate a child twice. Terminating one child may emit
events that in turn terminates other children.

I created this patch because at first it looked like the cause of a bug,
which turned out not to be the case. So I have no actual use case of this
situation, but it does generally make sense to me, so submitting this.

Change-Id: I00990b47e42eeb43707a9a42abcd9df52fe5f483
2016-12-20 12:39:32 +01:00
Neels Hofmeyr 2ae5f18692 fsm: explicitly log removal from parent fsm
Since removing an FSM from its parent twice causes a segfault, it is very
interesting to see when that is attempted.

Removing could be made more robust, but logging is interesting for
investigating why an FSM is being removed twice in the first place (currently
the case in openbsc's vlr_lu_fsm).

Change-Id: Idec6b7aa5344f1e903c9d2aa2a3640cab0d70fb0
2016-12-16 13:39:24 +01:00
Neels Hofmeyr 5c5c78aacd add value strings for enum osmo_fsm_term_cause and use for logging
Change-Id: Iaf63d3cadb0d46bf454e3314ebb439240cafd834
2016-12-15 11:35:56 +01:00
Neels Hofmeyr a3953e0536 typo in comment for osmo_fsm_log_addr()
Change-Id: I6f683ed0c864a87bf1232994eb2deaf9b313a244
2016-12-14 18:34:30 +01:00
Neels Hofmeyr 725698a4f1 fsm: log caller's source for events and state changes, not fsm.c lines
When looking at log output, it is not interesting to see that a state
transition's petty details are implemented in fsm.c. Rather log the *caller's*
source file and line that caused an event, state change and cascading events.

To that end, introduce LOGPSRC() absorbing the guts of LOGP(), to be able to
explicitly pass the source file and line information.

Prepend an underscore to the function names of osmo_fsm_inst_state_chg(),
osmo_fsm_inst_dispatch() and osmo_fsm_inst_term(), and add file and line
arguments to them. Provide the previous names as macros that insert the
caller's __BASE_FILE__ and __LINE__ constants for the new arguments. Hence no
calling code needs to be changed.

In fsm.c, add LOGPFSMSRC to call LOGPSRC, and add LOGPFSMLSRC, and use them in
above _osmo_fsm_inst_* functions.

In addition, in _osmo_fsm_inst_term(), pass the caller's source file and line
on to nested event dispatches, so showing where a cascade originated from.

Change-Id: Iae72aba7bbf99e19dd584ccabea5867210650dcd
2016-12-14 18:00:52 +01:00
Neels Hofmeyr 6a13e7f563 fsm: add LOGPFSML to pass explicit logging level
Provide one central LOGPFSML to print FSM information, take the FSM logging
subsystem from the FSM instance but use an explicitly provided log level
instead of the FSM's default level.

Use to replace some, essentially, duplications of the LOGPFSM macro.

In effect, the fsm_test's expected error changes, since the previous code dup
for logging events used round braces to indicate the fi's state, while the
central macro uses curly braces.

Change-Id: If295fdabb3f31a0fd9490d1e0df57794c75ae547
2016-12-14 17:56:48 +01:00
Neels Hofmeyr 886d6fdec6 fix logging: log_set_category_filter() for internal DL* logging cats
In log_set_category_filter(), passing a negative index lead to memory
corruption. Particularly dangerous since the internal logging categories have
negative values.

Fix: apply map_subsys() to interpret negative values as internal logging
categories.

As a side effect, out-of-bounds logging categories will be mapped to DLGLOBAL
instead of being dropped.

Fix the expectations in logging_test to match the fixed bug.

While at it also guard against a NULL logging target.

Change-Id: Ib0725b22bc39498c6b3970a61eb3339cf56d19f1
2016-12-12 16:56:54 +01:00
Neels Hofmeyr 748022694c fix logging: out-of-bounds check should end with user categories
To check category bounds, rather use num_cat_user, to redirect all semantically
unknown categories to DLGLOBAL.

Adjust logging_test expectations accordingly: "(d)" is now also shown.

Note: subsys is and needs to be signed, while num_cat* are unsigned. Thus for a
negative subsys, 'subsys >= num_cat_user' practically always yields true. Pay
close attention to signedness and check upper bound only for positive values.

Change-Id: I4a952b759f30d90fbfb81fedcfc56a8092ea18c1
2016-12-12 16:56:50 +01:00
Neels Hofmeyr ca13574ba4 fix logging: also catch first out-of-bounds logging cat
In map_subsys(), fix the '>' condition to '>=' for array bounds checking.

Also make the bounds checking more strict: after both invocations of
subsys_lib2index(), re-check validity of the array index. If the final index is
still wrong, which should never happen, exit by assertion.

Change-Id: I7ca1a1d47724e40350f1c4dfebe90bad01c965f9
2016-12-12 15:48:08 +01:00
Neels Hofmeyr 42240de04c fix logging: redirection to DLGLOBAL for invalid categories
For out-of-bounds logging categories, redirect to the proper DLGLOBAL array
index instead of returning -1.

Adjust test expectation which shows that the bugs tested for are fixed.

Note: there are separate bounds checking problems, left for another patch.

Change-Id: I6ea9a59e005a22e0305454291714fdb9531c346b
2016-12-12 15:47:37 +01:00
Neels Hofmeyr dd97950d26 gsm/oap: more robust: decode presence as clearly either 1 or 0
Prepares for the unit test, which can now simply check for encode/decode
identity.

Change-Id: I410ff120d868e8d55df9cb19ba6eefd99749cdf0
2016-12-11 03:42:58 +01:00
Harald Welte c0f0007292 import oap message parsing / encoding from openbsc.git; AGPL->GPL
In the process, also:
* Change the license from AGPLv3 to GPLv2-or-later;
* correct spelling of 'sysmocom' to lowercase;
* add '2016' to the copyright;
* rename to osmo_*;
* add API docs;
* add logging category DLOAP: define id and add to internal_cat;
* redirect all oap.c logging to DLOAP.

A unit test will follow in a subsequent patch, since it needs a minor tweak for
decoding of boolean values.

The related openbsc change-id is I2f06aaa6eb54eafa860cfed8e72e41d82ff1c4cf.

Tweaked-by: Neels Hofmeyr
Change-Id: If5099e60681a215e798b6675f21813f26769c253
2016-12-11 03:42:58 +01:00