From d717c7b27e1cd0b89c9557841c81f283494c1c08 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Fri, 7 Apr 2017 19:21:35 +0200
Subject: osmo_ss7: Fix segfault when routing MTP-TRANSFER.req to ASP without
 sctp connection

Change-Id: I142a11b09672864b54b927b8334b1975c8cd6022
---
 src/osmo_ss7.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/osmo_ss7.c b/src/osmo_ss7.c
index 8ec099a..f7f2519 100644
--- a/src/osmo_ss7.c
+++ b/src/osmo_ss7.c
@@ -1376,10 +1376,21 @@ int osmo_ss7_asp_send(struct osmo_ss7_asp *asp, struct msgb *msg)
 		OSMO_ASSERT(0);
 	}
 
-	if (asp->cfg.is_server)
+	if (asp->cfg.is_server) {
+		if (!asp->server) {
+			LOGPASP(asp, DLSS7, LOGL_ERROR, "Cannot transmit, no asp->server\n");
+			/* FIXME: what to do here? delete the route? send DUNA? */
+			return -EIO;
+		}
 		osmo_stream_srv_send(asp->server, msg);
-	else
+	} else {
+		if (!asp->client) {
+			LOGPASP(asp, DLSS7, LOGL_ERROR, "Cannot transmit, no asp->client\n");
+			/* FIXME: what to do here? delete the route? send DUNA? */
+			return -EIO;
+		}
 		osmo_stream_cli_send(asp->client, msg);
+	}
 
 	return 0;
 }
-- 
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