[PATCH 2/3] gsm_data: Add search for TRX by ARFCN

[Ivan Kluchnikov]

---
 openbsc/include/openbsc/gsm_data.h |    1 +
 openbsc/src/libcommon/gsm_data.c   |   11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 41fe328..d6a107f 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -424,6 +424,7 @@ void set_ts_e1link(struct gsm_bts_trx_ts *ts, uint8_t e1_nr,
 void gsm_trx_lock_rf(struct gsm_bts_trx *trx, int locked);
 int gsm_bts_has_feature(struct gsm_bts *bts, enum gsm_bts_features feat);
 struct gsm_bts_trx *gsm_bts_trx_by_nr(struct gsm_bts *bts, int nr);
+struct gsm_bts_trx *gsm_bts_trx_by_arfcn(struct gsm_bts *bts, int arfcn);
 
 /* generic E1 line operations for all ISDN-based BTS. */
 extern struct e1inp_line_ops bts_isdn_e1inp_line_ops;
diff --git a/openbsc/src/libcommon/gsm_data.c b/openbsc/src/libcommon/gsm_data.c
index 5f7e32e..9e3d360 100644
--- a/openbsc/src/libcommon/gsm_data.c
+++ b/openbsc/src/libcommon/gsm_data.c
@@ -225,6 +225,17 @@ struct gsm_bts_trx *gsm_bts_trx_by_nr(struct gsm_bts *bts, int nr)
 	return NULL;
 }
 
+struct gsm_bts_trx *gsm_bts_trx_by_arfcn(struct gsm_bts *bts, int arfcn)
+{
+	struct gsm_bts_trx *trx;
+
+	llist_for_each_entry(trx, &bts->trx_list, list) {
+		if (trx->arfcn == arfcn)
+			return trx;
+	}
+	return NULL;
+}
+
 /* Search for a BTS in the given Location Area; optionally start searching
  * with start_bts (for continuing to search after the first result) */
 struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac,
-- 
1.7.9.5