So far the implementation only allowed the remote CID being the same as
the one dynamically implemented internally.
Related: SYS#6138
Change-Id: I6b03eabc0305580c9788c529bec7dda9044a008f
This makes all lines operating on rate groups way shorter. The "ctrg"
naming is already used in tons of places in osmocom code.
Change-Id: I745eddbf66e7d811bb73c8ae9bb54ea93073c71b
It makes sense to handle one osmux socket per trunk. Since we only so
far operate one RTP/osmux trunk, let's stick to that only one for
simplicity.
Change-Id: I173266c4058d5db9479d773d7dec1304bc8f1f99
This cleans up all the code, and makes it a lot easier to add IPv6 support
later on (mostly only a matter of adding an IPv6 bind address in VTY).
Similar changes were done to the Osmux code being added to osmo-bts.
Related: SYS#5987
Change-Id: I5a100fc654f88d29b2bcd85889a5a92aef3d576d
This way we don't need to worry about implementation details (struct
size) in the future in case they change (they will).
Related: OS#5987
Requires: libosmo-netif.git Change-Id Ie8df581f375c9a183a7af60b431561bda82f6e34
Change-Id: I2d0d8c152b8f1234ddfcd74d6cb04b1818b41510
The initially merged IuUP API and implementation in libosmocore assumed
that RFCI with ID was always in the position of its ID inside the list
of RFCIs. This was the case for messages sent by ip.access nano3g as well
as our own osmocom implementation. However it was noticed that other nodes
from other vendors actually use other order, as allowed by the IuUP message
format.
Hence, we need to break the assumption and provide explicit ID
information in the list.
NOTICE: This commit implies an API change when using libosmogsm.
However, the previous API was never available in any libosmogsm release,
and only available in both libosmogsm and osmo-mgw master, so we are
only breaking compatibility between different master versions, which is
acceptable.
Related: SYS#5969
Depends: libosmocore.git Change-Id Ib21cee2e30bf83dff4e167f79541796007af9845
Change-Id: I40ebf36ad37f5196751caf2297a340e538ad28bc
Not entirely wait-free: allows waiting on a fd, and in general fd
notifications for poll-loop integration between threads.
Change-Id: I4f17042baf76d086ce6b20eb99402dc64c22c657
There is no obvious reason why we would want to complicate the code by
caching pointers, since pointer traversal is probably not a performance
bottleneck, and if it is we should rather take a look at our dozens of
linked lists first..
Change-Id: I2456ba63598f76200d53e00223abf60bb36a49c0
They are mostly not even as large as the talloc header used to
dynamically allocate them, and they are also not "shared" by anything.
Change-Id: I7b46d531c5d3b53984f2ce44538116973f6a074d
No need to complicate audio codes with pointers, our "usual" string is
barely larger than a poointer, five times smaller than a talloc header,
and most importantly not really optional anyway...
Change-Id: Icc41643050a5e1ca3c66f307d60b6911ba1b8032
The change I19f67db1c56473f47338b56114f6bbae8981d067 removes the
policy_cb and change_cb callback funtions, but it does not remove
the related ratecounters.
Change-Id: I53aa3c890555055466e86b09a359375a10d3be7b
The rate counter and stats item groups, which are allocated in
mgcp_ratectr.c are freed using a talloc destructor that is set in the
context of the item we just allocated using the stats / rate counter API
functions. When we do that, we risk overwriting an already existing
talloc destructor. Lets instead implement own free functions and set
those as talloc_destructor from above (trunk and MGCP config)
Change-Id: Ifc5091e9f95cc721e58d1eb2e55b97102c497706
Related: OS#5201
The two callback functions policy_cb and change_cb are essentially dead
code. They also make the code more difficult to read and understand.
Lets remove them.
Change-Id: I19f67db1c56473f47338b56114f6bbae8981d067
We are currently counting events in rate counters, but there is
currently no way to get a sample of the current situation of the trunk
usage. In particular how many endpoints are currently in use.
This is a corrected version of:
Ib7b654168dc3512f55e45cc4755dc1f6f423d023
Change-Id: I6d3a74f6087512130d85002348787bffc672de81
Related: SYS#5201
The request handler handle_delete_con currently rejects wildcarded DLCX
requests even though a wildcarded DLCX would be a valuable tool to
remove lingering connections from the trunk in case osmo-bsc has to be
restarted.
Change-Id: I5c2de6b2b61ee64ba9c0618fd20e8fc2fe6a5ed3
Related: SYS#5535
This reverts commit 6bad138c96.
Reason for revert: heap-use-after-free during 'make check'
in mgcp_test.c test_retransmission()
Change-Id: I96792a719c9c7273676ab9ffe0b9e2aae4c23166
Related: OS#5201
There is not always an endp pointer present when mgcp_check_param() is
called but we always have a trunk pointer. Lets add a trunk parameter so
that the function can pick LOGPTRUNK when endp is not available.
Change-Id: I7327c5a105e7f0e20cabf64623ff9f36fd83bbb8
Related: SYS#5535
We are currently counting events in rate counters, but there is
currently no way to get a sample of the current situation of the trunk
usage. In particular how many endpoints are currently in use.
Change-Id: Ib7b654168dc3512f55e45cc4755dc1f6f423d023
Related: SYS#5535
At the moment the MGCP request handling and message parsing is not
clearly separated. The function mgcp_parse_header() in mgcp_msg.c is
also responsible for resolving an endpoint. This leads to unclear layer
separation. We eventually end up in a situation where we can not execute
any request handler without beeing able to resolve an endpoint, however
this is necessary if we want to implement wildcarded DLCX resquests.
In the current situation a wildcarded DLCX is not possible to implement
as we always have to resolve a an to get to the trunk which we need to
iterate. However, we just can't resolve a free endpoint in a situation
where all endpoints on te trunk are in use.
We have to refactor the request handler so that the parsing in mgcp_msg
only extracts us the endpoint name. The resolving is then done in
mgcp_handle_message() in mgcp_protocol.c. Then we are able to decide
what to do if we are unable to resolve an endpoint but still be able to
resolve the trunk.
This patch does not change the behaviour of osmo-mgw yet, but it lays
the foundation for request handler implementations that can still
perform useful actions if no endpoint but a trunk has been resolved. A
wilcarded DLCX is such a case. It does not need an endpoint, just the
trunk.
Change-Id: I9f519d8a0ee8a513fa1e74acf3ee7dbc0991cdde
Related: SYS#5535
the trunk_nr is in struct mgcp_trunk. The trunk number can not be
negative and there is no magic value that makes use of the fact that it
could be negative. Lets use unsigned int to make this less irretating.
Change-Id: I5d0e1d76adb8c92d84331a0aca2496908e41d621
Related: SYS#5535
osmo-mgw currently does only a very simple detection method for
wildcarded requests, but it makes sense to split this detection
off into a separate function so that it can be used from different code
locations and we still have it at one place only.
Change-Id: I27018c01afb8acabfcf5d435c996cc9806e52d6b
Related: SYS#5535
The function mgcp_rtp_end_config() takes an mgcp_endpoint as
parameter. The header file does not declare the mgcp_endp struct
and it also does not include mgcp_endp.h because that also would
cause problems. Since the endp parameter in mgcp_rtp_end_config()
is only a pointer we can simply forward declare it.
This patch will currently not change anythig, but it will prevent
compiler warnings when we remove the endp pointer from
struct mgcp_parse_data in a follow up patch
Related: SYS#5535
Change-Id: I07a4d6f9d5334b1f4cf4b262482b8a67b1384398
The rate counter group is currently only referenced by an index. In a
system with multiple trunks this makes it difficult to say which rate
counter group belongs to which trunk sinde the index that is used does
not necessarly corespond to a specific trunk.
Since rate counter groups can now get a human readable name assigned, we
should do that.
Also E1 specific rate counters only make sense for E1-trunks, so they
should not be present on the virtual trunk.
Change-Id: I5e7f0e9081a06af48e284afa5c36a095b2847704
On a deployed osmo-mgw with RTP traffic coming from a thirdparty
RTP source, it was usual to see log messages like following one from
time to time:
"The input timestamp has an alignment error of 159 on SSRC"
Doing a quick traffic analysis showed that the above mentioned RTP
source was generating traffic from time to time containing RTP packets
with the Marker (M) bit.
Those messages were logged because the verification & patching funcions
in osmo-mgw were not Marker-bit aware. Hence, this patch implements
support for Marker bit when handling RTP packets.
The Marker bit is usually used as a start of a talkspurt, and has to be
considered a syncrhonization point, where timestamp and relation to real
time don't need to match with last received RTP packet in the stream.
Related: SYS#5498
Change-Id: I1fb449eda49e82607649122b9b9d983a9e5983fa
The following sequence of events was seen frequently in a osmo-mgw
instance running on the field with heavy traffic:
"""
endpoint:rtpbridge/1@mgw CRCX: creating new connection ...
mgcp_network.c:236 endpoint:rtpbridge/1@mgw CI:1C8CCFA9 Failed to send dummy RTP packet.
"""
Allegedly, that happens because at CRCX time the remote address may
still not be known, hence we end up trying to send a dummy rtp packet
to, for instance, host 0.0.0.0 port 0, which will of course fail.
Let's avoid sending it if the address is not yet known.
Similary, same issue could be seen during MDCX, since at MDCX we don't
necessarily need to have a valid addr+port (there could be several MDCX
and only last one set it).
Finally, the keepalive timer also needs the check, since it iterates
over all connections, and it could be that some is still not fully
configured.
Related: SYS#5498
Change-Id: I8ceafda691146823b12232b4a804b4ce74acbdc8
The constant MGCP_DUMMY_LOAD is used ambigously. Sometimes it is used as
initalizer for an array, sometimes it is used as a single byte. Also the
name is not very expressive. Lets refactor this.
Change-Id: I21d96cefeeb647958bfa1e22a0ea030884746fad
Related: OS#4005
When mgcp_udp_send() is called, the memory where *buf is pointing to is
never modified. It should be marked as const.
Change-Id: Iac90de5beb19bf52586ac6ffeab9eb5152edf339
This is useful for affecting the 802.1Q PCP value without any separate
external packet filter rules for classification.
Change-Id: I69136c6dd114c24b1dace034e75dba5157bac37e
Depends: libosmocore.git I89abffcd125e6d073338a5c6437b9433220e1823
libosmocore If22988735fe05e51226c6b091a5348dcf1208cdf introduces
an even more convenient mechanism for specifying the DSCP of
an IP socket via OSMO_SOCK_F_DSCP()
Change-Id: If0b11dea08716ed3952a25b546b2a9bd013857bf
Pau Espin
Eric Wild
Philipp Maier
Neels Hofmeyr
Harald Welte