Change in libosmo-sccp[master]: xua: Verify all route ctxs received in ASPAC msg

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pespin gerrit-no-reply at lists.osmocom.org
Thu Oct 24 15:57:28 UTC 2019


pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmo-sccp/+/15874 )


Change subject: xua: Verify all route ctxs received in ASPAC msg
......................................................................

xua: Verify all route ctxs received in ASPAC msg

Change-Id: I16ad0847d671522c8942b441db7e4c460f4f142b
---
M src/xua_asp_fsm.c
1 file changed, 10 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/libosmo-sccp refs/changes/74/15874/1

diff --git a/src/xua_asp_fsm.c b/src/xua_asp_fsm.c
index db4ffcb..1b39639 100644
--- a/src/xua_asp_fsm.c
+++ b/src/xua_asp_fsm.c
@@ -416,6 +416,9 @@
 	struct osmo_ss7_asp *asp = xafp->asp;
 	struct xua_msg *xua_in;
 	uint32_t traf_mode;
+	struct xua_msg_part *part;
+	uint32_t rctx;
+	int i;
 
 	check_stop_t_ack(fi, event);
 	switch (event) {
@@ -456,11 +459,13 @@
 				break;
 			}
 		}
-		if (xua_msg_find_tag(xua_in, M3UA_IEI_ROUTE_CTX)) {
-			uint32_t rctx = xua_msg_get_u32(xua_in, M3UA_IEI_ROUTE_CTX);
-			if (!osmo_ss7_as_find_by_rctx(asp->inst, rctx)) {
-				peer_send_error(fi, M3UA_ERR_INVAL_ROUT_CTX);
-				break;
+		if ((part = xua_msg_find_tag(xua_in, M3UA_IEI_ROUTE_CTX))) {
+			for (i = 0; i < part->len / sizeof(uint32_t); i++) {
+				rctx = osmo_load32be(&part->dat[i * sizeof(uint32_t)]);
+				if (!osmo_ss7_as_find_by_rctx(asp->inst, rctx)) {
+					peer_send_error(fi, M3UA_ERR_INVAL_ROUT_CTX);
+					break;
+				}
 			}
 		}
 		/* send ACK */

-- 
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Gerrit-Project: libosmo-sccp
Gerrit-Branch: master
Gerrit-Change-Id: I16ad0847d671522c8942b441db7e4c460f4f142b
Gerrit-Change-Number: 15874
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
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