[PATCH 3/7] sgsn: Make ra_id_equals available as gprs_ra_id_equals

[Jacob Erlbeck]

The function is moved to gprs_utils.c, renamed, and made non-static
to be usable in other modules, too.

Sponsored-by: On-Waves ehf
---
 openbsc/include/openbsc/gprs_utils.h |  2 ++
 openbsc/src/gprs/gprs_sgsn.c         | 11 ++---------
 openbsc/src/gprs/gprs_utils.c        |  7 +++++++
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/openbsc/include/openbsc/gprs_utils.h b/openbsc/include/openbsc/gprs_utils.h
index 6880e05..474eb45 100644
--- a/openbsc/include/openbsc/gprs_utils.h
+++ b/openbsc/include/openbsc/gprs_utils.h
@@ -25,6 +25,7 @@
 #include <sys/types.h>
 
 struct msgb;
+struct gprs_ra_id;
 
 struct msgb *gprs_msgb_copy(const struct msgb *msg, const char *name);
 int gprs_msgb_resize_area(struct msgb *msg, uint8_t *area,
@@ -52,3 +53,4 @@ int gprs_match_tlv(uint8_t **data, size_t *data_len,
 int gprs_shift_lv(uint8_t **data, size_t *data_len,
 		  uint8_t **value, size_t *value_len);
 
+int gprs_ra_id_equals(const struct gprs_ra_id *id1, const struct gprs_ra_id *id2);
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c
index c4dc9d7..8f8bdc6 100644
--- a/openbsc/src/gprs/gprs_sgsn.c
+++ b/openbsc/src/gprs/gprs_sgsn.c
@@ -90,13 +90,6 @@ static const struct rate_ctr_group_desc pdpctx_ctrg_desc = {
 	.class_id = OSMO_STATS_CLASS_SUBSCRIBER,
 };
 
-static int ra_id_equals(const struct gprs_ra_id *id1,
-			const struct gprs_ra_id *id2)
-{
-	return (id1->mcc == id2->mcc && id1->mnc == id2->mnc &&
-		id1->lac == id2->lac && id1->rac == id2->rac);
-}
-
 /* See 03.02 Chapter 2.6 */
 static inline uint32_t tlli_foreign(uint32_t tlli)
 {
@@ -112,7 +105,7 @@ struct sgsn_mm_ctx *sgsn_mm_ctx_by_tlli(uint32_t tlli,
 
 	llist_for_each_entry(ctx, &sgsn_mm_ctxts, list) {
 		if (tlli == ctx->tlli &&
-		    ra_id_equals(raid, &ctx->ra))
+		    gprs_ra_id_equals(raid, &ctx->ra))
 			return ctx;
 	}
 
@@ -130,7 +123,7 @@ struct sgsn_mm_ctx *sgsn_mm_ctx_by_tlli(uint32_t tlli,
 	case TLLI_FOREIGN:
 		llist_for_each_entry(ctx, &sgsn_mm_ctxts, list) {
 			if (tlli == tlli_foreign(ctx->tlli) &&
-			    ra_id_equals(raid, &ctx->ra))
+			    gprs_ra_id_equals(raid, &ctx->ra))
 				return ctx;
 		}
 		break;
diff --git a/openbsc/src/gprs/gprs_utils.c b/openbsc/src/gprs/gprs_utils.c
index ad479db..895a033 100644
--- a/openbsc/src/gprs/gprs_utils.c
+++ b/openbsc/src/gprs/gprs_utils.c
@@ -26,6 +26,7 @@
 #include <osmocom/gprs/gprs_ns.h>
 
 #include <osmocom/gsm/protocol/gsm_04_08.h>
+#include <osmocom/gsm/gsm48.h>
 
 #include <string.h>
 
@@ -399,3 +400,9 @@ fail:
 	return -1;
 }
 
+int gprs_ra_id_equals(const struct gprs_ra_id *id1,
+			const struct gprs_ra_id *id2)
+{
+	return (id1->mcc == id2->mcc && id1->mnc == id2->mnc &&
+		id1->lac == id2->lac && id1->rac == id2->rac);
+}
-- 
1.9.1