Commit Graph

34 Commits

Author SHA1 Message Date
Holger Hans Peter Freyther 292769e19e stats/mgcp: Initialize the statistics for MGCP as well
There are currently no reate counters but this will hopefully
change in the near future.
2015-11-02 16:20:32 +01:00
Holger Hans Peter Freyther 3e4e8cfb74 vty: Change the return type from enum to int
clang complained that different enums are mixed with the
return type and we actually want this to be an int now.
2015-09-24 15:39:30 +02:00
Holger Hans Peter Freyther daaea0c84f 64bit: Fix compiler warnings in regard to 64bit
vty_interface_layer3.c:584:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=]
    sizeof(subscr->extension)-1, VTY_NEWLINE);
2015-08-03 12:01:44 +02:00
Holger Hans Peter Freyther b69518f383 configure: Do not link all applications against libgsm
Use the same trick as done by the dlopen check to not
have everyone link against the library.
2015-07-02 09:51:31 +02:00
Andreas Rottmann b25c8342cc Fix build wrt. missing CFLAGS constituents
When libosmo-netif and/or libosmo-abis are installed in distinct
prefixes, the build failed with non-found headers.
2015-06-19 20:56:53 +02:00
Holger Hans Peter Freyther 6995f24831 logging: Only compare the subscr address
Move the "logging filter imsi IMSI" into the BTS/NITB code to
allow to set the gsm_subscriber and only compare it. This way
we simply compare the subscriber address and don't have to care
if the subscriber data is still valid.
2015-01-02 11:43:06 +01:00
Harald Welte 55dc31e781 Use port number #defines for VTY and CTRL ports
.. as defined in libosmocore
2014-08-24 17:54:49 +02:00
Holger Hans Peter Freyther cb6ad70994 mgcp: Change API to remove memory management from the name
Jacob pointed out that "free_endp" refers to the memory of
the endpoint being freed. What we want is actually a way to
release an endpoint (and the resource it allocated) or in
the case of the testcase/testapp initialize the data structure
correctly. Introduce two names for that.
2014-07-22 15:00:52 +02:00
Jacob Erlbeck 909fac6689 mgcp: Move transcoding to libmgcp
This patch moves the files relevant to transcoding from
src/osmo-bsc_mgcp to src/libmgcp and src/include/openbsc. Makefiles
and include directives are being updated accordingly.

Sponsored-by: On-Waves ehf
2014-06-05 14:08:53 +02:00
Jacob Erlbeck 42a833e89f mgcp: Add packet size (ptime) conversion
The current transcoder implemenation always does a 1:1 recoding
concerning the duration of a packet. So RTP timestamps and sequence
numbers are not modified.

This is not sufficient in some cases, e.g. when the BTS does only
allow for a single fixed ptime.

This patch decouples encoding from decoding and moves the decoded
samples to the state structure so that samples can be combined or
drain according to the packaging of incoming and outgoing packets.

This patch incorporates parts of Holger's experimental fixes in
0e669e05^..9eba68f9.

Ticket: OW#1111
Sponsored-by: On-Waves ehf
2014-06-05 14:08:45 +02:00
Jacob Erlbeck 136a319e91 mgcp: Add CLI tool to test audio conversion
This tool uses mgcp_transcode.c to convert audio data from stdin to
stdout.

Sponsored-by: On-Waves ehf
2014-06-05 14:00:47 +02:00
Jacob Erlbeck 239a853f40 mgcp: Add RTP audio transcoding
This patch implements audio transcoding between the formats GSM,
PCMA, L16, and optionally G.729.

The feature needs to be enabled by using the autoconf option
'--enable-mgcp-transcoding'. In this case mgcp_transcode.c will
be compiled and linked to osmo-bsc_mgcp, and the transcoding
functions provided will be registered as processing callbacks.

If G.729 support is required, libcg729 needs to be installed and
'--with-g729' must be passed to ./configure.

Ticket: OW#1111
Sponsored-by: On-Waves ehf
2014-06-05 14:00:47 +02:00
Pablo Neira Ayuso cab6e7528c mgcp: add voice muxer support
This patch adds the voice muxer. You can use this to batch RTP
traffic to reduce bandwidth comsuption. Basically, osmux transforms
RTP flows to a compact batch format, that is later on decompacted
to its original form. Port UDP/1984 is used for the muxer traffic
between osmo-bsc_nat and osmo-bsc_mgcp (in the BSC side). This
feature depends on libosmo-netif, which contains the osmux core
support.

Osmux is requested on-demand via the MGCP CRCX/MDCX messages (using
the vendor-specific extension X-Osmux: on) coming from the BSC-NAT,
so you can selectively enable osmux per BSC from one the bsc-nat.cfg
file, so we have a centralized point to enable/disable osmux.

First thing you need to do is to accept requests to use Osmux,
this can be done from VTY interface of osmo-bsc_nat and
osmo-bsc_mgcp by adding the following line:

mgcp
  ...
  osmux on
  osmux batch-factor 4

This just initializes the osmux engine. You still have to specify
what BSC uses osmux from osmo-bsc_nat configuration file:

...
 bsc 1
  osmux on
 bsc 2
  ...
 bsc 3
  osmux on

In this case, bsc 1 and 3 should use osmux if possible, bsc 2 does
not have osmux enabled.

Thus, you can selectively enable osmux depending on the BSC, and
we have a centralized point for configuration from the bsc-nat to
enable osmux on demand, as suggested by Holger.

At this moment, this patch contains heavy debug logging for each
RTP packet that can be removed later to save cycles.

The RTP ssrc/seqnum/timestamp is randomly allocated for each MDCX that
is received to configure an endpoint.
2014-05-22 14:39:16 +02:00
Jacob Erlbeck 075a9ebdcc mgcp: Send RTP keepalive dummy packets to net
So far, a single dummy packet has been sent immediately after the
reception of a MDCX message. There is no dedicated keep alive
mechanism (it just worked because the audio from the MS has always
been forwarded to the NAT until the 'mgcp: Set output_enabled flags
based on the MGCP mode' patch).

This patch adds explicit, timer based keep alive handling that can be
enable per trunk. A VTY command 'rtp keep-alive' command is added for
configuration which can be used to set the interval in seconds, to
send a single packet after the reception of a CRCX/MDCX when RTP data
from the net is expected ('once'), or to disable the feature
completely ('no rtp keep-alive'). In 'send-recv' connections, only
the initial packet is sent if enabled (even when an interval has been
configured). The default is 'once'.

Note that this removes the mgcp_change_cb() from mgcp_main.c.

Sponsored-by: On-Waves ehf
2014-01-16 13:20:51 +01:00
Pablo Neira Ayuso 326b5d80b3 libmgcp: add enum mgcp_role
This enum indicates if the mgcp is running on the BSC or the BSC-NAT.
2013-08-27 12:21:43 +02:00
Alexander Huemer a1c09a401d Makefile.am: Use AM_CPPFLAGS
Since automake 1.13 INCLUDES is depricates and causes a warning
2013-06-12 09:16:27 +02:00
Holger Hans Peter Freyther 30690adbc8 mgcp: Calculate the jitter with the formula/code from the appendix
Use a usec timestamp for the local time. The seconds to usec will
swap over to the lower bits but this appears to be correct. The
CLOCK_MONOTONIC is used to fulfill the RFC 3550 requirement even
if it is a bit slower than the gettimeofday.

Make sure to initialize transit in a way that the first transit
time will be 0. Otherwise the jitter will contain the difference
of the localtime and the remote time.
2012-11-12 10:45:03 +01:00
Holger Hans Peter Freyther 778695d0b4 mgcp: Add the disable color option to the mgcp binary 2012-09-20 16:06:56 +02:00
Holger Hans Peter Freyther 2f2be578cb misc: Use other size modifiers to fix compiler warnings
control_if.c:521:2: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘uint64_t’ [-Wformat]
osmo_bsc_bssap.c:473:3: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ [-Wformat]
mgcp_main.c:162:4: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘unsigned int’ [-Wformatt]
2012-03-16 12:18:39 +01:00
Harald Welte 6b36b90f75 mgcp: make sure all command line options are documented
Signed-off-by: Holger Hans Peter Freyther <zecke@selfish.org>
2012-03-16 10:21:34 +01:00
Harald Welte ec7683f3b0 mgcp: consistently name bsc_mgcp osmo-bsc_mgcp
Signed-off-by: Holger Hans Peter Freyther <zecke@selfish.org>
2012-03-16 10:21:34 +01:00
Harald Welte 50f93a4acd bsc_mgcp: optionally connect the MGCP socket to the MGW
This allows the use of the existing "call-agent ip A.B.C.D" command in
libmgcp in order to set a default destination address of the call agent.

This is required as a pre-condition for certain call agents (like the
zynetix MSC) that require a RSIP from the BSC to the MSC as the initial
MGCP message.
2012-01-27 00:38:59 +01:00
Holger Hans Peter Freyther 794e8f2649 abis: gsm_data_shared.h includes libosmo-abis header, add abis to cflags
gsm_data_shared.h includes e1_input.h of libosmo-abis, add the
LIBOSMOABIS_CFLAGS to Makefile.am, remove AM_LDFLAGS at the same
time as we only build .a archives.
2012-01-15 17:52:02 +01:00
Holger Hans Peter Freyther 37a63ca34a misc: Linking fixes for Ubuntu 11.10 Compiler
Ubuntu 11.10 has changed some linker/compiler flags. Some fixes for this
can be seen here[1]. In general the to be linked libs need to be moved into
the LDADD section of parameters. This is with the old BFD linker (not gold).

This is likely to end in some ping-pong with other versions of the linker.

[1] https://bugs.launchpad.net/ubuntu/+source/nis/+bug/771034

Errors:
/usr/bin/ld.bfd.real: bsc_hack.o: undefined reference to symbol 'osmo_init_ignore_signals'
/usr/bin/ld.bfd.real: note: 'osmo_init_ignore_signals' is defined in DSO /home/ich/install/openbsc/lib/libosmocore.so so try adding it to the linker command line
/home/ich/install/openbsc/lib/libosmocore.so: could not read symbols: Invalid operation

...
../../src/libbsc/libbsc.a(rest_octets.o):/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:381: more undefined references to `bitvec_set_bit' follow
../../src/libbsc/libbsc.a(rest_octets.o): In function `rest_octets_si13':
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:382: undefined reference to `bitvec_set_uint'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:383: undefined reference to `bitvec_set_uint'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:385: undefined reference to `bitvec_set_bit'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:402: undefined reference to `bitvec_set_bit'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:403: undefined reference to `bitvec_set_uint'
2011-10-16 17:08:51 +02:00
Alexander Huemer d02e68b24d fix fprintf format specifiers in osmo-bsc_mgcp 2011-09-06 09:32:14 +02:00
Holger Hans Peter Freyther 74db7744ee mgcp: Implement RSIP based on a trunk level
Implement the RSIP spec extension to work on the specified
trunk instead of hardcoding it to the virtual trunk.
2011-07-19 19:56:33 +02:00
Holger Hans Peter Freyther 95fd72b9f7 misc: Remove the osmocom/core/process.h include
The osmo_daemonize moved from process.h to application.h (that
is already included), remove the process.h include.
2011-07-18 10:40:13 +02:00
Holger Hans Peter Freyther 67cd75f9fa misc: Use the osmo_init code for signals and logging
Use the libosmocore code to ignore certain signals by
default (e.g. SIGHUP, SIGPIPE) and use the new code to
create a default stderr logging target and initialize
it properly.
2011-05-12 16:11:14 +02:00
Pablo Neira Ayuso 4db9299286 src: use namespace prefix osmo_fd* and osmo_select*
Summary of changes:

s/struct bsc_fd/struct osmo_fd/g
s/bsc_register_fd/osmo_fd_register/g
s/bsc_unregister_fd/osmo_fd_unregister/g
s/bsc_select_main/osmo_select_main/g
2011-05-06 12:11:23 +02:00
Pablo Neira Ayuso 136f453dd2 src: use new library libosmogsm and new path to headers in libosmocore
libosmogsm is a new library that is distributed in the libosmocore.
Now, openbsc depends on it. This patch gets openbsc with this
change.

This patch also rewrites all include path to the new
osmocom/[gsm|core]

Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
2011-03-23 18:17:56 +01:00
Pablo Neira Ayuso 739a566961 bsc: change bsc_vty_init to take logging categories as parameter
This change is required to finish the integration of the VTY and
the per-application logging categories that provides:

"vty: integration with logging framework"

in libosmocore.

It has been tested with osmo-nitb. The other just compiled tested.
2011-03-19 18:50:38 -03:00
Harald Welte 89579b4317 prefix sub-directories containing libraries with 'lib'
... and make sure tests work again after restructuring
2011-03-04 13:23:09 +01:00
Harald Welte bd34be0a96 bsc_mgcp: use top_builddir instead of top_srcdir 2011-03-03 23:46:55 +01:00
Harald Welte a17faf8512 Rename bsc_nat -> osmo-bsc_nat and bsc_mgcp -> osmo-bsc_mgcp
This now enforces a unique structure: All of our main daemon
programs start with an "osmo-" prefix.
2011-03-03 23:36:48 +01:00