nat: Close the connection after we couldn't find the user
In case the token was not correct, just close the connection.
It is not clear that forcing a new TCP connection is going to
give us any extra security here. But with the upcoming auth
handling it does make sense to have both case look similar.
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c
index 2f186b2..9216654 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c
@@ -985,6 +985,7 @@
LOGP(DNAT, LOGL_ERROR,
"No bsc found for token '%s' on fd: %d.\n", token,
bsc->write_queue.bfd.fd);
+ bsc_close_connection(bsc);
return;
}