xua_snm.c: Fix wrong PC value passed in MTP-{PAUSE,RESUME} towards SCCP

Change-Id: I28bfb13744f2feb4adb610b341330725e2691a77
---
M src/xua_snm.c
1 file changed, 4 insertions(+), 2 deletions(-)


git pull ssh://gerrit.osmocom.org:29418/libosmo-sigtran refs/changes/87/40487/1

diff --git a/src/xua_snm.c b/src/xua_snm.c
index 3dd988f..079cd96 100644
--- a/src/xua_snm.c
+++ b/src/xua_snm.c
@@ -123,6 +123,8 @@
 {
 	int i;
 	for (i = 0; i < num_aff_pc; i++) {
+		/* 32bit "Affected Point Code" consists of a 7-bit mask followed by 14/16/24-bit SS7 PC,
+		 * see RFC 4666 3.4.1 */
 		uint32_t _aff_pc = ntohl(aff_pc[i]);
 		uint32_t pc = _aff_pc & 0xffffff;
 		uint8_t mask = _aff_pc >> 24;
@@ -139,9 +141,9 @@
 			uint32_t fullpc;
 			for (fullpc = (pc & ~maskbits); fullpc <= (pc | maskbits); fullpc++) {
 				if (available)
-					sccp_scmg_rx_mtp_resume(sccp, pc);
+					sccp_scmg_rx_mtp_resume(sccp, fullpc);
 				else
-					sccp_scmg_rx_mtp_pause(sccp, pc);
+					sccp_scmg_rx_mtp_pause(sccp, fullpc);
 			}
 		}
 	}

