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path: root/openbsc/src/nat/bsc_nat.c
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Diffstat (limited to 'openbsc/src/nat/bsc_nat.c')
-rw-r--r--openbsc/src/nat/bsc_nat.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index a428e82..3e878b8 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -901,6 +901,15 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
/* hand data to a side channel */
if (bsc_check_ussd(con, parsed, msg) == 1)
con->con_local = 2;
+
+ /*
+ * Optionally rewrite setup message. This can
+ * replace the msg and the parsed structure becomes
+ * invalid.
+ */
+ msg = bsc_nat_rewrite_setup(bsc->nat, msg, parsed, con->imsi);
+ talloc_free(parsed);
+ parsed = NULL;
}
con_bsc = con->bsc;
@@ -956,7 +965,8 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
/* send the non-filtered but maybe modified msg */
queue_for_msc(con_msc, msg);
- talloc_free(parsed);
+ if (parsed)
+ talloc_free(parsed);
return 0;
exit: