oml: In case we get a NACK, drop the OML connection and hope for the best

Assume that a NACK is a onetime failure and that on the next
attempt it will work better. If that is not the case we might
even send a reboot to the BTS.

1 files changed, 10 insertions, 0 deletions

diff --git a/openbsc/src/bsc_init.c b/openbsc/src/bsc_init.c
index 1c4c829e4..abfbb5af8 100644
--- a/openbsc/src/bsc_init.c
+++ b/openbsc/src/bsc_init.c
@@ -33,6 +33,7 @@
 #include <openbsc/signal.h>
 #include <openbsc/chan_alloc.h>
 #include <osmocore/talloc.h>
+#include <openbsc/ipaccess.h>
 
 /* global pointer to the gsm network data structure */
 extern struct gsm_network *bsc_gsmnet;
@@ -563,10 +564,19 @@ static int sw_activ_rep(struct msgb *mb)
 /* Callback function for NACK on the OML NM */
 static int oml_msg_nack(u_int8_t mt)
 {
+	int i;
+
 	if (mt == NM_MT_SET_BTS_ATTR_NACK) {
 		LOGP(DNM, LOGL_FATAL, "Failed to set BTS attributes. That is fatal. "
 				"Was the bts type and frequency properly specified?\n");
 		exit(-1);
+	} else {
+		LOGP(DNM, LOGL_ERROR, "Got a NACK going to drop the OML links.\n");
+		for (i = 0; i < bsc_gsmnet->num_bts; ++i) {
+			struct gsm_bts *bts = gsm_bts_num(bsc_gsmnet, i);
+			if (is_ipaccess_bts(bts))
+				ipaccess_drop_oml(bts);
+		}
 	}
 
 	return 0;