| Commit message (Collapse) | Author | Age | Files | Lines |
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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
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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
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Rather than having applications maintain their own talloc cotexts,
let's offer some root talloc contexts in libosmocore. Let's also
make them per thread right from the beginning. This will help
some multi-threaded applications to use talloc in a thread-safe
way.
Change-Id: Iae39cd57274bf6753ecaf186f229e582b42662e3
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Change-Id: I05dd1f2725e05f856f1d27c9201a0005de101b8f
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Change-Id: I351411ca5913c8b40f23287ec7c9ebfe11bd2bb0
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Provide a common implementation of use counting that supports naming each user
as well as counting more than just one use per user, depending on the rules the
caller implies.
In osmo-msc, we were originally using a simple int counter to see whether a
connection is still in use or should be discarded. For clarity, we later added
names to each user in the form of a bitmask of flags, to figure out exactly
which users are still active: for logging and to debug double get / double put
bugs. This however is still not adequate, since there may be more than one CM
Service Request pending. Also, it is a specialized implementation that is not
re-usable.
With this generalized implementation, we can:
- fix the problem of inadequate counting of multiple concurrent CM Service
Requests (more than one use count per user category),
- directly use arbitrary names for uses like __func__ or "foo" (no need to
define enums and value_string[]s),
- re-use the same code for e.g. vlr_subscr and get fairly detailed VLR
susbscriber usage logging for free.
Change-Id: Ife31e6798b4e728a23913179e346552a7dd338c0
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For handling RTP IP addresses and ports, osmo-mgw, osmo-bsc and osmo-msc
so far have their own separate shims and code duplication around
inet_ntoa(), htons(), sockaddr conversions etc. Unify and standardize
with this common API.
In the MGW endpoint FSM that was introduced in osmo-bsc and which I
would like to re-use for osmo-msc (upcoming patch moving that to
osmo-mgw), it has turned out that using char* IP address and uint16_t
port number types are a convenient common denominator for logging,
MGCP message composition and GSM48. Ongoing osmo-msc work also uses this
for MNCC.
This is of course potentially useful for any other IP+port combinations
besides RTP stream handling.
Needless to say that most current implementations will probably stay
with their current own conversion code for a long time; for current
osmo-{bsc,msc,mgw} work (MGW endpoint FSM) though, I would like to move
to this API here.
Change-Id: Id617265337f09dfb6ddfe111ef5e578cd3dc9f63
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Move T_def from osmo-bsc to libosmocore as osmo_tdef. Adjust naming to be more
consistent. Upgrade to first class API:
- add timer grouping
- add generic vty support
- add mising API doc
- add C test
- add VTY transcript tests, also as examples for using the API
From osmo_fsm_inst_state_chg() API doc, cross reference to osmo_tdef API.
The root reason for moving to libosmocore is that I want to use the
mgw_endpoint_fsm in osmo-msc for inter-MSC handover, and hence want to move the
FSM to libosmo-mgcp-client. This FSM uses the T_def from osmo-bsc. Though the
mgw_endpoint_fsm's use of T_def is minimal, I intend to use the osmo_tdef API
in osmo-msc (and probably elsewhere) as well. libosmocore is the most sensible
place for this.
osmo_tdef provides:
- a list of Tnnnn (GSM) timers with description, unit and default value.
- vty UI to allow users to configure non-default timeouts.
- API to tie T timers to osmo_fsm states and set them on state transitions.
- a few standard units (minute, second, millisecond) as well as a custom unit
(which relies on the timer's human readable description to indicate the
meaning of the value).
- conversion for standard units: for example, some GSM timers are defined in
minutes, while our FSM definitions need timeouts in seconds. Conversion is
for convenience only and can be easily avoided via the custom unit.
By keeping separate osmo_tdef arrays, several groups of timers can be kept
separately. The VTY tests in tests/tdef/ showcase different schemes:
- tests/vty/tdef_vty_test_config_root.c:
Keep several timer definitions in separately named groups: showcase the
osmo_tdef_vty_groups*() API. Each timer group exists exactly once.
- tests/vty/tdef_vty_test_config_subnode.c:
Keep a single list of timers without separate grouping.
Put this list on a specific subnode below the CONFIG_NODE.
There could be several separate subnodes with timers like this, i.e.
continuing from this example, sets timers could be separated by placing
timers in specific config subnodes instead of using the global group name.
- tests/vty/tdef_vty_test_dynamic.c:
Dynamically allocate timer definitions per each new created object.
Thus there can be an arbitrary number of independent timer definitions, one
per allocated object.
T_def was introduced during the recent osmo-bsc refactoring for inter-BSC
handover, and has proven useful:
- without osmo_tdef, each invocation of osmo_fsm_inst_state_chg() needs to be
programmed with the right timeout value, for all code paths that invoke this
state change. It is a likely source of errors to get one of them wrong. By
defining a T timer exactly for an FSM state, the caller can merely invoke the
state change and trust on the original state definition to apply the correct
timeout.
- it is helpful to have a standardized config file UI to provide user
configurable timeouts, instead of inventing new VTY commands for each
separate application of T timer numbers.
Change-Id: Ibd6b1ed7f1bd6e1f2e0fde53352055a4468f23e5
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Change-Id: I51696a3ace219ab69c294b0e3637371c5460291f
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Change-Id: I1bd973754b1ebc42283f6a07defa60f58523f5a3
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glib < 2.17 doesn't support clock_gettime directly, it is available
via librt.
Change-Id: Ice853d85ffe859b1d4df48b91b050c24d85c861b
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Change-Id: I7e66432f37e13fd4c31389e3d89593fa0981e58f
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* prefix all symbols/constants with osmo_
* use stdint.h types instead of kernel types
* use Doxygen API documentation
* use Osmocom CRC16-CCITT functions
* use Osmocom bit-reversal functions
* integrate with Automake
Change-Id: I109085ab3e412c20b19cd42fb7137aa0e4167542
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Sometimes the library probiding dlopen is not the same one providing
dlsym.
This is the case when compiling with AddressSanitizer enabled. In this
case, AC_SEARCH_LIBS([dlopen]...) reports no lib is required, but tests
using dlsym still require to link against -ldl.
Change-Id: Ic619b0885688066b60c97caf1e2c7e5402c1d9f7
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Remark: For libosmogb and libosmogsm, LIBVERSION was
already bumped in c4fce1425e19d604c199c895e227dc2519110456.
Change-Id: Ib4fa53a9bb9954ae48d0a610ba9a81dd8e8b4ef6
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Change-Id: I5bebc6e01fc9d238065bc2517058f0ba85620349
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The accelerated convolutional decoder uses SSSE3 instructions such
as PSIGNW (via _mm_sign_epi16) which go beyond what SSE3 offers. So
let's make sure we use the right compiler flag (-mssse3) and also the
right runtime check.
Without this patch, we would use illegal instructions e.g. on Opteron
Gen3 such as Opteron 2427, which are also used as build.opensuse.org
build hosts (build31 through build36) where we wouldn't pass "make
check" as a result.
Change-Id: I2754164384109f2821fd98ffb48f625893f2923d
Fixes: OS#2386
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According to
https://www.gnu.org/software/automake/manual/automake.html#Libtool-Flags
the libraries supposed to be added to *_LDADD or *_LIBADD
while *_LDFLAGS should contain additional libtool linking
flags. Previously we used both. Let's unify this and move all the
libraries into proper automake variable. While at it - also add
libosmocore.la for tests to LDADD since all the tests link against it
anyway.
Change-Id: Ia657a66db75df831421af5df1175a992da5ba80f
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It's been way too long since the last release. Almost one year and
468 commits.
A brief summary of the changes below:
* Doxygen for libosmo{coding,gb}
* pseudotalloc for embedded builds, jenkins for arm-none-gnueabi
* --disable-doxygen, --disable-ctrl, --disable-simd
* update debian packaging
* gsm0503 coding routines
* osmo_hton[sl]
* statistics.h -> counter.h
* QCDIAG in gsmtap
* llist_{first,last}_entry()
* llist_count()
* LOGPSRC() macro
* msgb_pull_to_l2()
* msgb_printf()
* prbs
* osmo_sock_init2()
* osmo_sock_mcast_{name,loop_set,ttl_set,all_set,subscribe,ip}()
* OSMO_STRINGIFY()
* OSMO_VALUE_STRING()
* OSMO_BYTES_FOR_BITS()
* osmo_talloc_asprintf()
* osmo_sub_auth_type_name()
* osmo_sub_auth_data support for IND/SQN_MS
* osmo_fsm ctrl interface
* ctrl_handle_alloc2()
* ctrl_interface_setup_dynip2()
* OSMO_CTRL_PORT_HLR
* bssgp_tx_bvc_ptp_reset()
* gprs_ns_inst connect/remote_{ip,port}
* osmo_gprs_{ul,dl}_block_size_{bits,bytes}()
* osmo_gprs_{dl,ul}_cs_by_block_bytes()
* gprs_ns_pdu_strings[]
* more BSSGP cause values
* abis_nm_admin_name()
* AoIP support in gsm0808
* gsm_fn_as_gsmtime_str()
* osmo_dump_gsmtime()
* gsup charging support
* ipa_ccm_make_id_resp()
* ipa_ccm_make_id_resp_from_req()
* struct gsm48_gprs_susp_req
* gsm_04_14.h
* rsl measurement preprocessing related IEs
* abis_nm_event_cause_names[]
* abis_nm_sw_desc and friends
* more SYSINFO_TYPE_ values
* osmo_earfcn_bit_size_ext()
* t16lv_put()
* msgb_t16lv_put()
* tlvp_val16be()
* tlvp_val32be()
* osmo_tlvp_copy()
* osmo_tlvp_merge()
* many additional VTY nodes
* cmd_node.name member
* bitvec_set_u64()
* bitvec_rl_curbit
* ctrl_lookup_register()
* osmo_fsm_find_by_name()
* osmo_fsm_inst_find_by_name()
* osmo_fsm_inst_find_by_id()
Change-Id: Ieb5db2e910a90db780ea058b3280f2facbd68d76
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With stat_item, stats.c and stats_statsd.c, it is becoming a bit
difficult to understand file naming. Also, the 'statistics.c' file
actually only contained osmo_counter handling, so let's rename it to
counter.c altogether.
Change-Id: I2cfb2310543902b7da46cb15a76e2da317eaed7d
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These PRBS sequences are specified in ITU-T O.150. They are typically
used as test data to be transmitted for BER (bit error rate) testing.
Change-Id: I227b6a6e86a251460ecb816afa9a7439d5fb94d1
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This allows passing 'make CFLAGS+="..."'
without breaking the build.
Suggested-by: zecke
Change-Id: I0628a9c739cded771605f5c55df7f21cb07beb3b
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We already have generic convolutional transcoding implementation
written by Sylvain Munaut and named 'conv.c', so 'viterbi_*' names
looked a bit confusing.
Let's use a single naming scheme for Viterbi related code.
Change-Id: I61062a8d1fbf5f5fc85b4fac58dc4e9fa8b5ef90
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According to GCC's wiki:
If you specify command-line switches such as -msse, the compiler
could use the extended instruction sets even if the built-ins are
not used explicitly in the program. For this reason, applications
that perform run-time CPU detection must compile separate files
for each supported architecture, using the appropriate flags. In
particular, the file containing the CPU detection code should be
compiled without these options.
So, this change introduces a separate Viterbi implementation,
which is almost the same as previous one, but is being compiled
with -mavx2. This implementation will be only used by CPUs with
both SSE and AVX support:
SSE3 and AVX2: viterbi_sse_avx.c
SSE3 only: viterbi_sse.c
Generic: viterbi_generic.c
Change-Id: I042cc76258df7e4c6c90a73af3d0a6e75999b2b0
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Let's avoid confusion with generated files which have
ending with _gen.* as well.
Change-Id: I3ecd8f9e73c05236f2cdc186f58b3d0ba552283f
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Fast convolutional decoding is provided through x86 intrinsic based
SSE operations. SSE3, found on virtually all modern x86 processors,
is the minimal requirement. SSE4.1 and AVX2 are used if available.
Also, the original code was extended with runtime SIMD detection,
so only supported extensions will be used by target CPU. It makes
the library more partable, what is very important for binary
packages distribution. Runtime SIMD detection is currently
implemented through the __builtin_cpu_supports call.
Change-Id: I1da6d71ed0564f1d684f3a836e998d09de5f0351
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In tightly embedded builds (--enable-embedded), we want the ability to
replace talloc with a very simple heap allocator to avoid the complexity
of talloc without modifying all our code that assumes talloc.
This will break the hierarchical notion of the allocator, but
libosmo{core,gsm,coding,codec} don't rely on that anyway.
Change-Id: Ie341034076f242a813f081919dd09d845775ad35
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Change-Id: If9d50d634381f43b2c67b97fea36a462a66e4559
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Add a separate, faster convolution decoding implementation for rates
up to N=4 and constraint lengths of K=5 and K=7, which covers the
most GSM code uses. The decoding algorithm exploits the symmetric
structure of the Viterbi add-compare-select (ACS) operation - commonly
known as the ACS butterfly. This shift-register optimization can be
found in the well-known text by Dave Forney.
Forney, G.D., "The Viterbi Algorithm," Proc. of the IEEE, March 1973.
Implementation is non-architecture specific and improves performance on
x86 as well as ARM processors. Existing API is unchanged with optimized
code being called internally for supported codes.
The original code was relicensed under GPLv2-or-later with permission
of copyright holder - Tom Tsou.
Change-Id: I74d355274b4176a7d924f91ef3c96912ce338fb2
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* 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
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This target wraps the to-be-logged string (With metadata) into a GSMTAP
packet and sends it to the configured destination address.
Change-Id: I9a7e72b8c9c6f6f2d76d1ea2332dcdee12394625
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This allows feeding a custom time for unit tests by overriding
osmo_gettimeofday.
Change-Id: Ic7a81a6eb51f27fe452962b91f2eae2070d87089
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This code is supposed to formalize some of the state machine handling in
Osmocom code.
Change-Id: I0b0965a912598c1f6b84042a99fea9d522642466
Reviewed-on: https://gerrit.osmocom.org/163
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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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>
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Shipping our own private copy of talloc was a good idea in 2008,
when it was not readily available on most target platforms. Today,
the situation is quite different, as it is a standard library on
major Linux distributions.
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This commit moves the stats specific code parts into stats_statsd.c
while keeping the generic parts in stats.c. The code in stats.c no
longer contains references to statsd symbols.
Note that the VTY code still needs to know about every stats reporter
backend.
Sponsored-by: On-Waves ehf
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This commit provides the stats reporting framework that can manage
several types of measurement reporters. Initially support for
rate_ctr and the statsd protocol is included.
Sponsored-by: On-Waves ehf
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This commit adds instrumentation function to gather measurement
and statistical values similar to counter groups.
Multiple values can be stored per item, which can be retrieved in
FIFO order. Getting values from the item does not modify its state to
allow for multiple independant backends (e.g. VTY and statd).
When a new value is set, the oldest value gets silently overwritten.
Lost values are skipped when getting values from the item.
Sponsored-by: On-Waves ehf
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Preprocessor flags are best placed in AM_CPPFLAGS. Remove use of the
unused all_includes variable, which is never set.
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This enables the persistent configuration of let's say
'log filter imsi 012345678' for a given log file in the config
file.
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FreeBSD 10.0 ships an execinfo.h but one needs to link to an
additional library for the backtrace functions. Check if there
is a backtrace symbol in libexecinfo and if so link to that
library.
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Only the Gb library relies on having undefined references to a
symbol that needs to be provided by the host application. For
all other libraries we can link with -no-undefined.
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The log target can be used via log alarms and show alarms.
Why? This feature was proposed/requested at
http://openbsc.osmocom.org/trac/wiki/Tasks/ErrorLogTarget
All messages use the same amount of space, prioritizing simplicity.
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I noticed some more issues and it is the easiest to revert and include
the fixed version.
This reverts commit 73377229bb33ab79682ce4b126a63602d13304ad.
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The log target can be used via log alarms and show alarms.
Why? This feature was proposed/requested at
http://openbsc.osmocom.org/trac/wiki/Tasks/ErrorLogTarget
All messages use the same amount of space, prioritizing simplicity.
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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