Commit Graph

943 Commits

Author SHA1 Message Date
Harald Welte 1bc597c752 use osmo_fd_setup() whenever applicable
Change-Id: I1586e855d37670af2602fc26b5d1fc72a32d1929
2020-10-19 13:31:40 +02:00
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
Vadim Yanitskiy 3ba409558e vty: use install_lib_element() and install_lib_element_ve()
See https://lists.osmocom.org/pipermail/openbsc/2020-October/013278.html.

Change-Id: I0eff9e0daa1c4327fec8034755986d768f9ba511
Depends: I8baf31ace93c536421893c2aa4e3d9d298dcbcc6
Related: SYS#4937
2020-10-04 16:48:55 +07:00
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 8cfe7df3f1 mgcp_vty: deprecate bind early command
The VTY command "bind early" is deprecated but it prints an error
message and the DEFUN is not set to DEFUN_DEPRECATED.

Change-Id: I594a87d2f63826a9d7b4f6a380586b08b3b79518
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 30e01355f6 cosmetic: Fix typo in comment
Change-Id: Ie982e6721f9840ac9c0bca62646f5c97cc0b1139
2020-09-21 15:45:38 +02:00
Pau Espin 06624e13d4 mgw: Fix return value documentation for API mgcp_verify_call_id
Change-Id: Ib5d32baf3a10dad73de29b4388eab14b93ab6f09
2020-09-21 15:45:38 +02:00
Pau Espin 19539866e5 mgw: Avoid logging notice message each time we receive nt param in LCO
We don't really use it so far and it doesn't deserve a NOTICE message.

Change-Id: I058dc37fe6229e879284a8f5e7677d6016129c47
2020-09-21 15:45:21 +02:00
Pau Espin 1dc2dcebbf cosmetic: Fix typo in comment
Change-Id: I87894dc710823226c1891c919a11ea32c326d3b9
2020-09-21 11:25:18 +02:00
Pau Espin 6049a63d1d mgw: Don't be case-sensitive when parsing X-Osmo-IGN param
Some implementations like our TTCN3 encoder set all param characters in
caps.

Related: SYS#5063
Change-Id: Ie4bc5e86551c55021ca6ca2fbc6fc56a26f5fb16
2020-09-21 11:03:25 +02:00
Philipp Maier 3ef8e76534 cosmetic: mgcp_client_fsm: change error message.
The error message: "abrupt FSM termination with connections still
present, sending unconditional DLCX..." implies a more serious problem
than in actually is. Even when connections are present on the
mgcp_client_fsm while it terminates, normal operation is still possible.
Lets change the loglevel to NOTICE and remove the "aprupt" from the
phrase.

Change-Id: I9749c024e208835bd4188bace13f723008de54c8
Related: SYS#5082
2020-09-18 08:46:21 +00:00
Neels Hofmeyr fbf07f3f69 change timer T2427001 to X2427
libosmo-mgcp-client looks up this timer in a caller provided osmo_tdef
definition. So far, all of our libosmo-mgcp-client callers do not configure
such a timer, so that we always use the default timer value.

We have introduced X timers (negative numbers) to indicate Osmocom specific
timers, and reserve T timers for 3GPP specified ones. So now is still a good
chance to move this timer to the Osmocom X realm.

Remove a comment about this timer at an unrelated place. It is still described
at osmo_mgcpc_ep_alloc().

Change-Id: If097f52701fd81f29bcca1d252f4fb4fca8a04f7
2020-09-16 00:02:31 +02:00
Pau Espin de133113a0 mgw: osmux: Fix conn watchdog timeout not updated
It is currently done upon receival of RTP packets in rx_rtp for pure RTP
conns, but nothing similar is done for Osmux conns, which eventually
trigger a connection time out.

Change-Id: Id592d7db7b9399a497176e0d28cc826b3bce48c0
2020-09-08 17:51:45 +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 2491401932 mgw: osmux: Avoid sending packets on recvonly connection
Change-Id: I87b1fb7d73cbbb2a5d4d8a40a9527a3e05d9947b
2020-09-08 12:57:35 +02:00
Pau Espin fbbe8f2f98 mgw: Announce and rebind new local address if change required during MDCX
MDCX may provide a new remote address, which means we may need to update
our announced IP addr and re-bind our local end. This can happen for
instance if MGW initially provided an IPv4 during CRCX ACK, and now MDCX
tells us the remote has an IPv6 address.

Change-Id: Iaed424e2c209e1753e1f579752fc684aaad7a512
2020-09-07 18:12:59 +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 2741d6bb0e mgcp_client: copy back Connection Information from MDCX ACK
This is needed in case MGW changes the local IP address (for instance
because it initlaly offered an IPv4 address, and a client submitted a
remote IPv6 address, so MGW needs then to offer a local IPv6 address for
the RTP connection to be possible).

Change-Id: Ie964412b81fe6e10914790baaea724ca5f772adc
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 c4ef4a21c6 mgcp_client: Support validating IPv6 addresses in CRCX and MDCX commands
Change-Id: Ie97675f173dc3a223f6c2ced913906d760ffb732
2020-09-07 15:55:30 +02:00
Pau Espin 531470a0ca mgcp_client: Allow setting IPv6 addresses
Change-Id: I257218b2ad7cbdd0ac4ae7fa75802bed74ce983f
2020-09-07 15:55:30 +02:00
Pau Espin 9dc73593a3 mgcp_client: Allow submitting and parsing IPv6 addr in SDP
Existing mgcp_client_test code required the '.' to trigger the same code
path, since with this commit we do extra checks and without a dot the
address is not accepted as IPv4 by osmo_ip_str_type().

Change-Id: I936bf57d37f5f0607dfe7fc66c37e424c3793f9b
2020-09-07 15:55:30 +02:00
Philipp Maier ae6858bddf mgcp_trunk: increase default number of virtual endpoints
The VTY default for the number of endpoints is 32. This is sufficient
for small setups and lab testing, but for medium sized setupts the limit
might be reached soon. Lets increase the default to 512 virtual endpoints.

Change-Id: I55605ea083565b6950d0820e3f72c50c9dc19ffa
Related: OS#4711
2020-09-07 12:11:25 +02:00
Philipp Maier 99d4d368e8 mgcp_endp: use NUM_E1_TS from e1_input.h
do not introduce another define constant, use NUM_E1_TS as number of E1
timeslots.

Change-Id: I3bbfb6822d5595f9d243849141883490fa8037cb
2020-09-07 12:00:51 +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 729bf3e45a mgcp-client: Support IPv6 in osmo_mgcpc_ep_ci_get_crcx_info_to_sockaddr() implementation
Change-Id: Ibbfc1c2485636502dc0f3aef3922432cc7fd6170
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 ad79f9eb99 mgcp_e1: make E1 ts initalization more debugable
The E1 timeslot initalization may fail silently in the last steps. There
is an error code returned, but no log lines are printed. This can make
debugging difficult.

Change-Id: I9aab17fc1ba6666c81b14035a8f1f17e5a55adaf
2020-08-31 16:21:03 +02:00
Pau Espin c57ad7ff9a cosmetic: Rename main talloc ctx
It contained name from a different program, probably due to main.c being
copied over during project start.

Change-Id: I4bfa40eec0277705f5d3335d779bff35518470a8
2020-08-20 08:43:52 +00:00
Pau Espin c59b5c533d Support setting rt-prio and cpu-affinity mask through VTY
Change-Id: Icfafea073a0cdac289a651d61632b4c6af39c6a9
Depends: libosmocore.git Change-Id If76a4bd2cc7b3c7adf5d84790a944d78be70e10a
Depends: osmo-gsm-masnuals.git Change-Id Icd75769ef630c3fa985fc5e2154d5521689cdd3c
Related: SYS#4986
2020-08-20 08:43:52 +00:00
Philipp Maier 0653cc8a7c mgcp_trunk: drop "trunk 0" limitation
Due to the internal handling of the trunks it was not possible to allow
an E1 trunk that has the ID 0. However this limitation is no longer
present, so we now can allow an E1 trunk with ID 0.

Change-Id: I302c2007628f607033686e277c407232351e66ad
Related: OS#2659
2020-08-20 06:21:41 +00:00
Philipp Maier 246233d0d4 cosmetic: add missing new-line
Change-Id: I4a4a7515e8d92ab39576c33765dd3dc581453ceb
2020-08-18 20:11:38 +02:00
Philipp Maier a910a81b7c mgcp_protocol: log when endpoint is unavailable
When endpoints become unavailable when MDCX/CRCX/DLCX are executed on
them a major problem may be the cause, lets make sure that those events
are logged.

Change-Id: I059b7e29f960e75a53bfb5dfb2b83ab3d79e84f3
2020-08-18 20:11:11 +02:00
Philipp Maier c8acee2234 mgcp_e1: use return value of e1inp_line_update()
The function e1inp_line_update() is called without assigning its return
code to the rc variable.

Change-Id: Ia72ea2dca210b038766151d547f66b7b7139a2c4
Fixes: CID#212160
2020-08-15 07:43:38 +00:00
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
Philipp Maier efd09d0b77 mgcp_protocol: remove unused variable
The function allocate_port() has pointer a variable end, it even does an
OSMO_ASSERT on it, but it never uses it. Lets remove it.

Change-Id: I369361389c6276e5511c683ebd630093713bdd37
2020-08-02 19:30:48 +02:00
Vadim Yanitskiy ffbc618a13 libosmo-mgcp-client: mgcp_client_tx(): return rc on error
Change-Id: Ic2080241ceb9e00109a5222b78c35b7971320c21
2020-07-31 10:21:49 +00:00
Harald Welte 563ffc51b5 libosmo-mgcp-client: fix memleak in case if no response is received
This problem was noticed while running several LCLS test cases from
ttcn3-bsc-test.  Every test case makes osmo-bsc leak at least two
chunks named 'struct mgcp_response_pending'.

Here is the related osmo-bsc output with additional debug messages:

  DRLL ERROR mgcp_client_fsm.c:525 MGCP_CONN(to-MSC)[0x612000016120]{ST_READY}:
             MGW/DLCX: abrupt FSM termination with connections still present,
             sending unconditional DLCX...
  DLMGCP DEBUG mgcp_client.c:1010 mgcp_client_next_trans_id(id=35): new trans ID
  DLMGCP DEBUG mgcp_client.c:918 mgcp_client_pending_add(id=35): allocated and queued
  DLMGCP DEBUG mgcp_client.c:962 Queued 53 bytes for MGCP GW
  DLMGCP DEBUG mgcp_client.c:725 Tx MGCP: r=127.0.0.1:2427<->l=127.0.0.1:2727:
               len=53 'DLCX 35 rtpbridge/1@mgw MGCP 1.0\r\nC: 5\r\nI:'...
  DLMGCP ERROR mgcp_client.c:704 Failed to read: r=127.0.0.1:2427<->l=127.0.0.1:2727:
               111='Connection refused'

The MGCP client FSM enqueues a DLCX from its fsm_cleanup_cb(), and
terminates.  Thus if the remote MGCP peer becomes unavailable (e.g.
due to a network failure), we would never get a response, and since
the FSM is already terminated, nobody would pop and free() the
response handler from the queue (mgcp->responses_pending).

As a simple workaround, let's avoid allocating dummy entries of
'struct mgcp_response_pending' without a response handler.  The
only case where an MGCP message is sent without a handler is
exactly during the FSM termination.

Change-Id: I83938ff47fa8570b8d9dc810a184864a0c0b58aa
Related: OS#4619
2020-07-31 10:21:49 +00:00
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 7a755be4c2 mgcp_trunk: use talloc_zero_array instead of _talloc_zero_array
_talloc_zero_array is not supposed to be called by the API user. Lets
use talloc_zero_array instead.

Related: OS#2659
Change-Id: I27549585016a7998e9233c52f6d86429fc75f509
2020-07-16 11:57:45 +00:00
Philipp Maier 869b21c869 mgcp_vty: fix endpoint number configuration
At the moment the number of possible E1 endpoints (depends on the number
of E1 timeslots that should be used) is hardcoded and the configuration
of the number of virtual endpoints has an off-by-one problem.

For the E1 timeslots one might choose not to occupy all E1 timeslots of
once. A one TRX E1 BTS usually requires 3 E1 timeslots. One as D-Channel
timeslot and two to cover the voice channels. The voice channels
timeslots need to be set up in osmo-mgw, while the D-Channel timeslot
must not be touched. The VTY config needs to be able to reflect that.

Change-Id: I73b31e3c236a61ea0a6f76ef5ff98ce589f52c77
Related: OS#2547
2020-07-16 11:57:45 +00:00
Philipp Maier 24b8c0ce92 mgcp_trunk: remove double check
At the moment, the trunk prefix is checked twice. Lets re-arange the
code a bit so that the check only happens once.

Change-Id: I91fb8cf6e3b077ba8f18fdbcd071275c6fd7cacd
Related: OS#2547
2020-07-16 11:57:45 +00:00
Philipp Maier fe67e094ad mgcp_endp.c: cosmetic: fix sourcecode formatting
Change-Id: Ib83442d9a033b96c304bfd5e81206405d98d2ed5
2020-07-16 11:56:39 +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
Harald Welte 827da2c867 mgcp_client_pending_add(): Consider "talloc returns NULL" case
Change-Id: I43a4715fa41fba5a5506fc08e3c21ef6f9ca2521
2020-07-15 10:57:08 +02:00