gsm_utils: add enum osmo_rat_type, from osmo-msc enum ran_type

In the MSC, we have RAN types GERAN_A and UTRAN_IU, now we need a similar enum
in osmo-hlr's GSUP client.

Naming: in the MAP specifications, the RAN type is mostly called RAT type,
(Radio Access Network vs. Radio Access Technology?). Since GSUP is more about
MAP messages, I'm calling the enum osmo_rat_type.

Rationale: osmo-msc and osmo-sgsn want to tell the osmo-hlr which RAT a
subscriber is calling on. A subsequent patch will extend the GSUP protocol and
add a RAT types IE.

Change-Id: I659687aef7a4d67ca372a39fef31dee07aed7631

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gsm/gsm_utils.c b/src/gsm/gsm_utils.c
index 8b4b5586..38620470 100644
--- a/src/gsm/gsm_utils.c
+++ b/src/gsm/gsm_utils.c
@@ -997,3 +997,11 @@ int gsm_7bit_encode_oct(uint8_t *result, const char *data, int *octets)
 	return gsm_7bit_encode_n(result, GSM_7BIT_LEGACY_MAX_BUFFER_SIZE,
 				 data, octets);
 }
+
+/* This is also used by osmo-hlr's db schema */
+const struct value_string osmo_rat_type_names[] = {
+	{ OSMO_RAT_UNKNOWN, "unknown" },
+	{ OSMO_RAT_GERAN_A, "GERAN-A" },
+	{ OSMO_RAT_UTRAN_IU, "UTRAN-Iu" },
+	{}
+};