pespin submitted this change.

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sccp: MTP-TRANSFER.req: Set OPC before route lookup

Before this commit, all SCCP UNIT-DATA.req came with unset xua->mtp.opc
and hence route lookup was done with opc=0 in mtp route label.

Since loadsharing may take into account some OPC bits to distribute
traffic, set the OPC properly before route lookup.

Change-Id: I85e1d6c48f3c9082dcfaaeaa97a805cc0a372463
---
M src/sccp_scrc.c
1 file changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/sccp_scrc.c b/src/sccp_scrc.c
index e28e584..d8239e3 100644
--- a/src/sccp_scrc.c
+++ b/src/sccp_scrc.c
@@ -142,6 +142,7 @@
 				    struct xua_msg *xua,
 				    const struct osmo_sccp_addr *called)
 {
+	struct osmo_sccp_addr calling;
 	struct osmo_ss7_route *rt;
 	struct osmo_ss7_route_label rtlabel;
 
@@ -159,6 +160,11 @@
 	 *    primitive and send it via link
 	 */
 
+	if (sua_addr_parse(&calling, xua, SUA_IEI_SRC_ADDR) == 0 &&
+	    (calling.presence & OSMO_SCCP_ADDR_T_PC))
+		xua->mtp.opc = calling.pc;
+
+
 	if (called->presence & OSMO_SCCP_ADDR_T_PC)
 		xua->mtp.dpc = called->pc;
 	if (!xua->mtp.dpc) {

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