tree f3708dc7420f058a69c062db78579a86a178264e
parent 513b831cdacb2ff41fe87f2770fb0b96a64d4ce4
author Pau Espin Pedrol <pespin@sysmocom.de> 1560871312 +0200
committer laforge <laforge@gnumonks.org> 1561384405 +0000

lib/mgcp: Add new port with support to handle multiple MGCP sockets

* Some scenarios like MGW BSC-attached in SCCPlite require handling of
2 MGCP-over-UDP sockets in MGCP Emulation: 1 for regular
libosmomgcp-client from osmo-bsc and another one from the forward socket
from osmo-bsc (of MGCP-over-IPA messages communicated with MSC).

* Old port is kept for backward compatibility with other tests and
enabled by default. It's also interesting to keep it because it makes
tests without special needs (2 sockets) to use the old port/API which
produces simpler code to read and mantain.

* Users of the new port have to enable multi_conn_mode parameter and
expect to interact with port MGCP_CLIENT_MULTI instead of MGCP_CLIENT,
which will offer messages containing information about the UDP
connection being used by that message.

Change-Id: Ic0ba8c5cde068c07671512a83095d83e28b86746