m3ua: fix m3ua_encode_dupu

Fix wrong header and swapped user / cause values (see RFC 4666). This
makes TC_ssnm_distribution_dupu pass.

Change-Id: I717b64d13d12a2781c90e4d2f83643331797bed4

1 files changed, 2 insertions, 2 deletions

diff --git a/src/m3ua.c b/src/m3ua.c
index 4583683..607813f 100644
--- a/src/m3ua.c
+++ b/src/m3ua.c
@@ -820,9 +820,9 @@ static struct xua_msg *m3ua_encode_dupu(const uint32_t *rctx, unsigned int num_r
 					const char *info_string)
 {
 	struct xua_msg *xua = xua_msg_alloc();
-	uint32_t user_cause = (user << 16) | cause;
+	uint32_t user_cause = (cause << 16) | user;
 
-	xua->hdr = XUA_HDR(M3UA_MSGC_SNM, M3UA_SNM_DUNA);
+	xua->hdr = XUA_HDR(M3UA_MSGC_SNM, M3UA_SNM_DUPU);
 	xua->hdr.version = M3UA_VERSION;
 	if (rctx)
 		xua_msg_add_data(xua, M3UA_IEI_ROUTE_CTX, num_rctx * sizeof(*rctx), (const uint8_t *)rctx);