Commit Graph

377 Commits

Author SHA1 Message Date
Philipp Maier 3c293b418b mgcp_trunk: get rid of magic numbers for E1 slots
use NUM_E1_TS-1 instead of 31 in relation of E1 timeslot count

Change-Id: I1cf5fa17f7455448a08ec3c32febca450eadb21e
2020-11-27 15:12:33 +01:00
Philipp Maier 19c430feba mgcp_vty: add user attributes to configuration commands
To make clear which configuration changes (configure terminal)
apply when, add appropriate user attributes to VTY commands.

Change-Id: I2d9487801b3b78f94577264b56d217c926ef76a9
Related: SYS#4937, OS#1601
2020-10-08 19:26:51 +02:00
Philipp Maier 60be627557 mgcp_e1: do not expose function mgcp_e1_init()
The initialization of the E1 line in mgcp_e1.c is controlled internally,
there is no need to expose the function mgcp_e1_init(), lets make it
static and remove the prefix mgcp_

Change-Id: I6aba1c55c9b1d729709ee1fba2994c77bd848a9b
2020-09-23 10:25:52 +02:00
Philipp Maier ba94b6d7be mgcp_vty: remove remains of loopback functionality
There exist trunk_loop commands, which sets an trunk->audio_loop
variable, however all it does is to turn on a log message. There is no
actual implementation present. Lets set the VTY commands to
DEFUN_DEPRECATED and remove the variable.

Change-Id: I72b0f8b908e32643e6e3db6ac024371b13c074a1
2020-09-22 16:17:38 +02:00
Pau Espin 6d0a59a1bf mgw: Release endpoint after last conn times out
Otherwise some state is kept, like the previous CallId, which may then
provoke issues next time the endpoint is to be used.

Change-Id: I3ac4f4542c1c8c877127c64acce6c82b458f697f
2020-09-08 16:50:24 +02:00
Pau Espin 71d42e778a mgw: Find and store RTP conn local_addr once during CRCX handling
It doesn't make sense to call the function several times since anyway we
are only binding during
allocate_port()->mgcp_bind_net_rtp_port()->bind_rtp()->mgcp_create_bind()->osmo_sock_init2().

Let's better calculate the local IP addr once and use that stored value.
THis is a previous step towards next commit updating the local IP addr
and re-bindng if encessary.

Change-Id: I803b99c5e5fe0f92a5bf6796d8c25df88d1608e6
2020-09-07 18:12:59 +02:00
Pau Espin 8a2a1b22fe mgw: Introduce VTY cmd 'rtp bind-ip-v6' command
This commit allows for fully IPv6 systems to work fine. However, if a
remote endpoint still wants to use IPv4, it will fail since at this
point osmo-mgw still doesn't re-bind the local end of the connection to
an IPv4 after having initially bound it to an IPv6 one. This kind of
scenarios get fixed in next commits.

TODO: really bind the socket if a different IP address is requested.

Change-Id: I8ed94bd3f674f498e6ba315f44a351fff9c1be15
2020-09-07 18:12:59 +02:00
Pau Espin a790f0c082 mgw: Initial IPv6 support
This commit contains the bulky work of moving all address parsing to
support IPv6 together with IPv4.
Some specific patches required for full IPv6+IPv4 support requiring
behavioral changes come after this one.

Full Osmux IPv6 support is left out of the scope of this patch.

Depends: libosmocore.git Ie07a38b05b7888885dba4ae795e9f3d9a561543d (> 1.4.0)
Depends: libosmocore.git I59bf4b4b3ed14766a5a5285923d1ffa9fc8b2294 (> 1.4.0)
Change-Id: I504ca776d88fd852bbaef07060c125980db3fdd7
2020-09-07 18:12:59 +02:00
Pau Espin 0ab152b2c6 mgw: Fix mgcp_rtp_end field description comment
Change-Id: Ieb044daaaa47572cd9a2524ea69e903200527d17
2020-09-07 15:55:30 +02:00
Pau Espin 74d0e5c318 mgcp_client: Deprecate unused IPv4-only API
The API and related implementation fields are not used internally nor
externally, and only support IPv4. Let's simply deprecate the API and
drop all the uneeded implementation.

Change-Id: I905d4c4efabb6b4a4bc5c02e956808777243cadc
2020-09-07 15:55:30 +02:00
Pau Espin ee2f33bf9a mgcp_client: Make MGCP_CLIENT_LOCAL_ADDR_DEFAULT IPv6 compatible
If "0.0.0.0", the default, is passed together with an IPv6 configured
address (ex: "mgw remote-ip ::1") in VTY, socket creation will fail due
to address version mismatch (because getaddrinfo() returns only an IPv4
address in the local result set).
If instead NULL is passed, then 2 entries are returned, one in IPv4 and
one in IPv6, and osmo_sock_init2 is smart enough to take one or another
when passed AF_UNSPEC.

Change-Id: I1be6f3b71486ce1782ba6b8c62f25145b42ec894
2020-09-07 15:55:30 +02:00
Pau Espin 8667d5169d mgcp_client: Use INET6_ADDRSTRLEN to store addresses in str format
Warning: This breaks libosmo-mgcp-cli ABI!

Related: SYS#4915
Change-Id: Ib778e9a72764103b52a462ea3c7fb56b23c1bcd6
2020-08-31 17:10:08 +02:00
Pau Espin 1add5a53cb mgcp-client: Fix trailing whitespace in mgcp_client_fsm.h
Change-Id: Iad9ee764c1b6d7960a810a3eef95b207596e4796
2020-08-31 17:10:08 +02:00
Philipp Maier 2f34b53b5b mgcp_e1: remove unused struct member trunk->e1.line
The struct member trunk->e1.line is never set. Also it is always
possible to use e1inp_line_find() to get a pointer to the e1.line.
Lets remove it.

Change-Id: Id4ff52285917ce3885b8dad3a16270999c9da0aa
2020-08-31 16:21:03 +02:00
Philipp Maier 113141d4f9 mgcp_ratectr: fix comments in header file
Change-Id: Idd9d7b108e81b44501b78264284dfa46e679d994
2020-08-10 22:56:59 +02:00
Philipp Maier 993ea6be7a get rid of mgcp_internal.h
The file mgcp_internal.h still contains mostly definitions and types
that are relevant for mgcp_network.c and mgcp_protocol.c. Lets give
the network and protocol module its own header files, also move stuff
that does not relate to protocol and network to the appropiate places.

Change-Id: I837eaad771ed7252304db4a81c37953b70766fff
2020-08-10 22:56:59 +02:00
Philipp Maier 889fe7f203 mgcp_e1: finish E1 support, add E1 support from libosmoabis
Currently only the endpoint handling for E1 exists, but there is no
actual code behind it that handles the E1 traffic.

Change-Id: I6b93809b5ac7d01af55888347dd787b0bc997ae1
Related: OS#2659
2020-08-10 22:56:59 +02:00
Neels Hofmeyr 51b42ff2e1 refactor: use msgb to receive, pass and send RTP packets
Instead of numerous arguments (buf, len and context data), use a msgb, like
most other osmo programs do, with a msb->cb pointing at a context data struct.

This opens the future for adding/stripping IuUP header data from the msgb
easily.

(Checked to pass current ttcn3-mgw-tests.)

Change-Id: I3af40b63bc49f8636d4e7ea2f8f83bb67f6619ee
2020-07-21 16:13:23 +00:00
Philipp Maier fbcf39976e mgcp_endp: use define constant to define max number of E1 subslots
There are 15 possible subslots (not all at the same time) in one E1
timeslot. Lets use a define constant for that.

Change-Id: If7cb74e486946aff09e22abf8a8885bf0693f34e
Related: OS#2547
2020-07-16 11:56:39 +00:00
Philipp Maier 4863591c23 mgcp_client: add function to generate e1-endpoint names
mgcp_client.h offers functions to generate endpoint names for wildcarded
request. This is used in osmo-bsc, lets now also add a function that can
generate e1-endpoint names.

Change-Id: Iec35b5bae8a7b07ddb3559f7114a24dcd10e8f14
Related: OS#2547
2020-07-16 11:56:39 +00:00
Philipp Maier 6fbbeec064 mgcp_trunk: pick trunk by number and type
The function mgcp_trunk_by_num() is used to directly pick a specific
trunk that is known by its id number (sometimes called "index").
Traditionally the virtual trunk will reside under id number 0 and all
consecutively created E1 trunks will be created under number 1 to 64.
This works fine, but puts a limitation on us should we ever introduce an
aditional trunk type (e.g. T1). Since the numbers must be unique
regardless of the trunk type one could not have an E1 trunk number 1 and
e.g. a T1 trunk number 1 at the same time. So we should pick the trunk
not only by its number, but also by its type to allow different trunk
types to carry the same number. The trunks will still be distinguishable
by its type along with the respective endpoint prefix.

Change-Id: I7af1e9ce601babd4a51e88201a98319e03945f83
Related: OS#2659
2020-07-07 12:45:14 +02:00
Philipp Maier 8d6a193c1a endp: add E1 endpoint interlocking
E1 endpoint names also represent different rates, this may mean that
some rate / subslot combinations are not possible because they overlap
within nthe timeslot. When the equipment (BSC) is properly configured,
this will be no problem, however invalid configuration may cause the
selection of overlapping endpoints and this needs to be prevented, and
logged. Also rate counters need to be in place.

Change-Id: I18e90b10648a7e504371179ad144645fc82e1c27
Related: OS#2547
2020-07-06 19:19:27 +02:00
Philipp Maier 58a1ba85c7 mgcp_internal: remove forward declaration struct mgcp_endpoint_type
In is no longer needed to define struct mgcp_endpoint_type in
mgcp_internal.h

Change-Id: Iecea75e5620e8a2f1fd2066949c116bf72320aca
Related: OS#2659
2020-07-06 19:18:52 +02:00
Philipp Maier b0c05aa3a9 mgcp_conn: move struct mgcp_conn mgcp_conn.h
The struct mgcp_conn is currently defined in mgcp_internal.h, however it
makes more sense to put the struct in mgcp_conn.h

Change-Id: Ibe9a356300ddb9567432fe48e37c956b7125c79c
Related: OS#2659
2020-07-06 19:17:17 +02:00
Philipp Maier 0996a1e4ae endp: add typeset for e1-endpoints
Add an endpoint typeset for E1 support, also lets add dummy callbacks
for the cleanup and rtp dispatch functionality.

Related: OS#2547
Change-Id: I68b719a906e8f7251f0ca8c74ceec73bc40376f7
2020-07-04 10:02:56 +02:00
Philipp Maier 7e9ddc9904 trunk: parse E1 trunk number
The E1 trunk number is currently not parsed, whenever a trunk prefix is
detected that indicates an E1 trunk, then the entire request is
rejected.

Parse the trunk number and select the trunk accordingly

Related: OS#2547
Change-Id: Ifdaab953544151e73b58cc3e95d21afdb40765f4
2020-07-04 10:02:56 +02:00
Philipp Maier 04bbb9de3e mgcp_trunk: use enum type for trunk type variable
The trunk_type variable in struct mgcp_trunk is specified as an int,
however there is an enum mgcp_trunk_type specified. Lets use the enum as
type for trunk_type instead of int.

Related: OS#2659
Change-Id: I8e8b0cf448cfe67ad3b7caab24f301708d2a515f
2020-07-02 21:25:19 +02:00
Philipp Maier bea56788cb mgcp_trunk: move enum mgcp_trunk_type to mgcp_trunk.h
The enum mgcp_trunk_type, which is currently located in mgcp_internal.h
makes more sense in mgcp_trunk.h, so lets move it.

Related: OS#2659
Change-Id: I077121503c44fc112a33f1c946f368414e28f841
2020-07-01 23:21:51 +02:00
Philipp Maier 48bcc2ee12 mgcp_osmux: remove unused define constants
The define constants CONN_ID_BTS and CONN_ID_NET were used in mgcp_osmux
long time ago when osmux support was temporarly broken. Now those
defines are no longer used anywhere, so lets remove them.

Change-Id: I3d0b9d482ef0e2187bccace5779a7f8b9507c4e2
2020-07-01 23:13:25 +02:00
Philipp Maier 7462b95829 endp: move endpoint name generation into mgcp_endp.c
When the trunk allocates its endpoints by using mgcp_endp_alloc()
ist passes the name for each endpoint as a parameter. In order to
generate the name endpoint specific knowlege is required.

This process can be simplified, since all what
mgcp_trunk_alloc_endpts() does is calling mgcp_endp_alloc() in a loop in
order to generate a consecuitve series of endpoints. The endpoint names
are generated from the index of the for loop.

When we just pass the index instead of the endpoint name to
mgcp_endp_alloc(), then we can greatly simplify the code since all the
knowledge about the name generation can go into mgcp_endp.c. The
endpoint will name itsself by the trunk properties and the index number
we pass with the allocator function.

Change-Id: I8dee07f1c63037d1f73113f69c612d1f2703cee5
Related: OS#2659
2020-06-18 12:03:19 +02:00
Philipp Maier d19de2ee80 trunk: get rid of virt_trunk pointer
The virtual trunk is a pre-configured trunk that always exists. It is
kept separate from the trunk list using a separate pointer. This makes
thinks unecessarly complicated. Lets organize the trunk in the trunk
list like any other trunk, except that we automatically create it on
startup and assign it always the trunk id number 0.

Change-Id: I81934fbd211b225ab7920e78510729c8e22607b3
Related: OS#2659
2020-06-18 12:03:19 +02:00
Philipp Maier 3d5a2dd19f ratectr: move rate counter definitions into mgcp_ratectr.h
The rate counter definition (enums) are still in mgcp.h.
Lets move them to mgcp_ratectr.h since it makes more sense
to keep them there.

Change-Id: Id37f66673bc20f9c2cc47a6b44cdfe75f728b936
Related: OS#2659
2020-06-18 11:31:24 +02:00
Philipp Maier 7f90ddb519 mgcp_trunk: remove audio_name and audio_payload
get rid of deprecated trunk parameters which seem to be leftovers
from the old osmo-bsc_mgcp implementation. This is in particular
audio_name and audio_payload in struct mgcp_trunk_config which
allowed the user to "hardcode" an andio name and payload type
via VTY configuration

The removal of the struct members above also require a change to
mgcp_codec.c. The code that is is never actively used and even
causes wrong behavior when activated (set the no-transcoding
flag in VTY). Since the code is removed also the unit tests
also require to be changed to match the new behavior.

Change-Id: Ia050ec3cd34b410dfe089c41b977ae3d5aed7354
Related: OS#2659
2020-06-12 17:08:41 +02:00
Philipp Maier c66ab2c4c3 osmo-mgw: refactor endpoint and trunk handling
The trunk and endpoint handling in osmo-mgw is still very complex and
implemented in various places (mostly mgcp_protocol.c). Also we use
still integers for endpoint identification, which is not flexible enough
to address timeslots/subslots on an E1 trunk. Some refactoring is needed.

  - get rid of integers as endpoint identifiers, use strings instead and
    find the endpoint based on its string name on the trunk.

  - identify the trunk based on the trunk prefix given in the endpoint
    name.

  - refactor trunk and endpoint allocation. Aggregate functionality in
    in mgcp_endp.c and mgcp_trunk.c. Also remove non-reusable code that
    relates to the still exisiting, but unfinished E1 trunk support.

  - refactor rate counters, put them into a separate module and do no
    longer allocate them per trunk. Allocate them globally instead.

Change-Id: Ia8cf4d6caf05a4e13f1f507dc68cbabb7e6239aa
Related: OS#2659
2020-06-12 17:08:41 +02:00
Philipp Maier 14b27a8893 osmo-mgw: rename struct mgcp_trunk_config and symbol tcfg
rename struct mgcp_trunk_config to struct mgcp_trunk and the related
symbol name "tcfg" to "trunk" in order to better match the reality.

Change-Id: I02889dbf8149e139b1bd0326e13ce4c1aec867d1
Related: OS#2659
2020-06-02 20:30:58 +02:00
Harald Welte c39b1bffec mgcp_protocol: Avoid code duplication between virtual + other trunks
There were two code paths that were supposed to do exactly the same,
but then in Change-Id I3994af016fb96427263edbba05f560743f85fdd4 only
one of the two was modified, resulting in OS#4034

Let's
* dynamically allocate the virtual trunk
* rename mgcp_config.trunk to mgcp_config.virt_trunk to clarify
* as a result, abolish copy+pasted code for trunk initialization

Change-Id: I54762af6d417b849a24b6e71b6c5c996a5cb3fa6
Related: OS#4034
2020-05-28 09:23:25 +00:00
Philipp Maier 62612e8575 mgcp: find better locations for LOGPCONN and LOGPENDP
The logging defines LOGPCONN and LOGPENDP are currently located in
mgcp_internal.h. However, there are specific header files for conn
(mgcp_conn.h) and endpoint (mgcp_endp.h) related stuff. Lets put LOGPCON
into mgcp_conn.h and LOGPENDP in mgcp_endp.h

Change-Id: I25ff37ee8108c27d169d294fd16ddcdde9b00195
2020-05-28 09:23:25 +00:00
Philipp Maier 265b0a8045 mgcp: remove unused callback pointer
struct mgcp_config contains a function pointer realloc_cb, which is
never popoulated nor used anywhere in the code. Lets remove it

Change-Id: I8d58281e1ff898638293c9e8cb000329462c7a70
2020-05-27 13:45:26 +02:00
Alexander Chemeris 63866009e2 counters: Implement more useful counters.
Right now a lot of errors with MGCP processing are invisible in rate
counters which makes them difficult to trace or even notice in
a production environment. E.g. reaching a limit of MGCP endpoints
is completely invisible even though it's a critical opertion alarm.

Change-Id: I6db68f044255c927dfd534fed880e405ec3ed4d6
2020-05-05 22:17:41 +03:00
Harald Welte 9852e22101 Add CTRL interface to osmo-mgw
OsmoMGW has a lot of nice built-in statistics (rate_ctr,...) but it
seems the only way to look at them is via the VTY. While libosmocore
contains automatic exposure of all rate counters via CTRL, the CTRL
interface simply is not used by osmo-mgw so far.

Closes: OS#4441
Change-Id: I7ed6bdb9f4749c24ca11a5905a620546cfe42952
2020-03-08 13:23:46 +01:00
Neels Hofmeyr 923d60bb12 client: endp fsm: add osmo_mgcpc_ep_ci_ep()
If an API user only has access to the ci FSM (which is managed via an opaque
struct), provide this function to obtain the backpointer to the parent endpoint
FSM, mostly to be able to call osmo_mgcpc_ep_cancel_notify() on it.

osmo-msc's rtp_stream FSM will use this in
I351bb8e8fbc46eb629bcd599f6453e2c84c15015.

Change-Id: I14f7a46031327fb2b2047b998eae6ad0bb7324ad
2019-10-29 23:04:11 +01:00
Neels Hofmeyr f2bf8dc8c8 client: endp fsm: allow cancelling a notify event
There is a use-after-free problem if a 'notify' FSM as passed to
osmo_mgcpc_ep_ci_request() deallocates before the notify event has been
dispatched. To avoid that, add API to allow cancelling a notify.

Change-Id: I41687d7f3a808587ab7f7520f46dcc3c29cff92d
2019-10-29 23:04:01 +01:00
Neels Hofmeyr 740af6ed44 mgcp_codec: constify 'param' arg
Change-Id: I3ec6b57298f78604d5cd453f1db6d90ddfd6a2ba
2019-08-09 02:28:37 +02:00
Oliver Smith 2cf6652ba2 "make dist" fix for: no rule to make mgcp_common.h
Mark osmocom/mgcp_client/mgcp_common.h as nodist, so "make dist" will
not try to include it in the source tarball. This caused "make dist" to
fail in a clean osmo-mgw source tree with:
make[2]: *** No rule to make target 'osmocom/mgcp_client/mgcp_common.h', needed by 'distdir'.  Stop.

The file gets copied during make from osmocom/mgcp/mgcp_common.h (see
include/osmocom/mgcp_client/Makefile.am). Therefore it is not included
in the source tree and we don't need to distribute it.

Related: OS#4084
Change-Id: Ia1d7b051c0924a785b0f7ec0195192e3a852ed70
2019-07-07 08:15:28 +00:00
Pau Espin 85978dadab osmux: Fix CID release for non-enabled connections
Change-Id: If65c70b421476776e20233733722d72aa26d69a8
2019-05-19 07:31:51 +00:00
Pau Espin 30907dc9d8 mgcp-cli: endpoint_fsm: Add API to retrieve Osmux CID from MGW
Change-Id: Ic80d47f8eedda1c6ac8c33f1cafeb55c65e74692
2019-05-14 11:36:33 +02:00
Pau Espin 14f8a08f44 osmux: Drop unneeded OSMUX_STATE_NEGOTIATING
Change-Id: I94e7df3287d037975adc16c5ada05adf94269ead
2019-05-14 11:36:33 +02:00
Pau Espin 91088c305f mgcp-cli: Parse X-Osmux on CRCX response
Change-Id: I6174d092b7425b8d3d6d02a55bf294be3e710e6a
2019-05-14 11:32:29 +02:00
Pau Espin 900cd6518a mgcp-cli: Allow submitting X-Osmux on CRCX request
Change-Id: I73b4c62baf39050da81d65553cbea07bc51163de
2019-05-14 11:29:44 +02:00
Pau Espin 497611ae84 osmux: Introduce mgcp_conn_rtp_is_osmux() helper
This is going to be useful to know if a conn is to use Osmux without
looking at implementation details. Currently we have some duplicated
information (type, osmux.state, etc.) which we may want to refactor
later. This will allow changing implementation details without caring
much about rest of code.

Change-Id: Ib5a239fdbc319bcb16317f5e959d9a724b7a444a
2019-05-13 18:56:56 +02:00