libosmo-mgcp: Use trunk type during endpoint allocation

This way we prepare it to add more endpoint types in the future (osmux)
and also make it clear that E1 endpoint specifics allocation is still
missing.

Change-Id: I7633b5287a436c11f0bbbdbaef1cf59a051a2471
diff --git a/src/libosmo-mgcp/mgcp_protocol.c b/src/libosmo-mgcp/mgcp_protocol.c
index 4121b9f..2acc7fd 100644
--- a/src/libosmo-mgcp/mgcp_protocol.c
+++ b/src/libosmo-mgcp/mgcp_protocol.c
@@ -1677,9 +1677,18 @@
 		tcfg->endpoints[i].cfg = tcfg->cfg;
 		tcfg->endpoints[i].tcfg = tcfg;
 
-		/* NOTE: Currently all endpoints are of type RTP, this will
-		 * change when new variations are implemented */
-		tcfg->endpoints[i].type = &ep_typeset.rtp;
+		switch (tcfg->trunk_type) {
+		case MGCP_TRUNK_VIRTUAL:
+			tcfg->endpoints[i].type = &ep_typeset.rtp;
+			break;
+		case MGCP_TRUNK_E1:
+			/* FIXME: Implement E1 allocation */
+			LOGP(DLMGCP, LOGL_FATAL, "E1 trunks not implemented!\n");
+			break;
+		default:
+			osmo_panic("Cannot allocate unimplemented trunk type %d! %s:%d\n",
+				   tcfg->trunk_type, __FILE__, __LINE__);
+		}
 	}
 
 	tcfg->number_endpoints = tcfg->vty_number_endpoints;