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
diff --git a/include/osmocom/mgcp/mgcp.h b/include/osmocom/mgcp/mgcp.h
index 8cdff59..27b1e35 100644
--- a/include/osmocom/mgcp/mgcp.h
+++ b/include/osmocom/mgcp/mgcp.h
@@ -261,7 +261,10 @@
uint32_t last_call_id;
/* trunk handling */
- struct mgcp_trunk_config trunk;
+
+ /* virtual trunk for RTP - RTP endpoints */
+ struct mgcp_trunk_config *virt_trunk;
+ /* physical trunks with underlying E1 endpoints */
struct llist_head trunks;
enum mgcp_role role;