1 files changed, 20 insertions, 0 deletions
diff --git a/src/libbsc/bsc_init.c b/src/libbsc/bsc_init.c
index f5f265f14..674813c71 100644
--- a/src/libbsc/bsc_init.c
+++ b/src/libbsc/bsc_init.c
@@ -37,6 +37,8 @@
 #include <osmocom/bsc/e1_config.h>
 #include <osmocom/bsc/common_bsc.h>
 #include <osmocom/bsc/pcu_if.h>
+
+#include <time.h>
 #include <limits.h>
 #include <stdbool.h>
 
@@ -98,6 +100,24 @@ int bsc_shutdown_net(struct gsm_network *net)
 	return 0;
 }
 
+unsigned long long bts_uptime(const struct gsm_bts *bts)
+{
+	struct timespec tp;
+
+	if (!bts->uptime || !bts->oml_link) {
+		LOGP(DNM, LOGL_ERROR, "BTS %u OML link uptime unavailable\n", bts->nr);
+		return 0;
+	}
+
+	if (clock_gettime(CLOCK_MONOTONIC, &tp) != 0) {
+		LOGP(DNM, LOGL_ERROR, "BTS %u uptime computation failure: %s\n", bts->nr, strerror(errno));
+		return 0;
+	}
+
+	/* monotonic clock helps to ensure that the conversion is valid */
+	return difftime(tp.tv_sec, bts->uptime);
+}
+
 static int rsl_si(struct gsm_bts_trx *trx, enum osmo_sysinfo_type i, int si_len)
 {
 	struct gsm_bts *bts = trx->bts;