[PATCH 1/6] Add parser for location information objects

[Yang Gu]

---
 src/simutil.c |    2 +-
 src/simutil.h |    1 +
 src/stkutil.c |   32 ++++++++++++++++++++++++++++++++
 src/stkutil.h |    9 +++++++++
 4 files changed, 43 insertions(+), 1 deletions(-)

diff --git a/src/simutil.c b/src/simutil.c
index d9383b7..65ffa36 100644
--- a/src/simutil.c
+++ b/src/simutil.c
@@ -538,7 +538,7 @@ static char *sim_network_name_parse(const unsigned char *buffer, int length,
 	return ret;
 }
 
-static void parse_mcc_mnc(const guint8 *bcd, char *mcc, char *mnc)
+void parse_mcc_mnc(const guint8 *bcd, char *mcc, char *mnc)
 {
 	static const char digit_lut[] = "0123456789*#abd\0";
 	guint8 digit;
diff --git a/src/simutil.h b/src/simutil.h
index 043c21f..09964a8 100644
--- a/src/simutil.h
+++ b/src/simutil.h
@@ -181,6 +181,7 @@ const struct sim_eons_operator_info *sim_eons_lookup(struct sim_eons *eons,
 						const char *mnc);
 void sim_eons_free(struct sim_eons *eons);
 
+void parse_mcc_mnc(const guint8 *bcd, char *mcc, char *mnc);
 struct sim_spdi *sim_spdi_new(const guint8 *tlv, int length);
 gboolean sim_spdi_lookup(struct sim_spdi *spdi,
 				const char *mcc, const char *mnc);
diff --git a/src/stkutil.c b/src/stkutil.c
index 9c83f49..a6b0284 100644
--- a/src/stkutil.c
+++ b/src/stkutil.c
@@ -519,6 +519,36 @@ error:
 	return FALSE;
 }
 
+/* Defined in TS 102.223 Section 8.19 */
+static gboolean parse_dataobj_location_info(
+		struct comprehension_tlv_iter *iter, void *user)
+{
+	struct stk_location_info *li = user;
+	const unsigned char *data;
+	unsigned int len;
+
+	if (comprehension_tlv_iter_get_tag(iter) !=
+			STK_DATA_OBJECT_TYPE_LOCATION_INFO)
+		return FALSE;
+
+	len = comprehension_tlv_iter_get_length(iter);
+	if ((len != 5) && (len != 7) && (len != 9))
+		return FALSE;
+
+	data = comprehension_tlv_iter_get_data(iter);
+
+	parse_mcc_mnc(data, li->mcc, li->mnc);
+	memcpy(li->lac_tac, data + 3, 2);
+
+	if (len >= 7)
+		memcpy(li->cell_id, data+5, 2);
+
+	if (len == 9)
+		memcpy(li->ext_cell_id, data+7, 2);
+
+	return TRUE;
+}
+
 /* Defined in TS 102.223 Section 8.31 */
 static gboolean parse_dataobj_icon_id(struct comprehension_tlv_iter *iter,
 					void *user)
@@ -638,6 +668,8 @@ static dataobj_handler handler_for_type(enum stk_data_object_type type)
 		return parse_dataobj_tone;
 	case STK_DATA_OBJECT_TYPE_FILE_LIST:
 		return parse_dataobj_file_list;
+	case STK_DATA_OBJECT_TYPE_LOCATION_INFO:
+		return parse_dataobj_location_info;
 	case STK_DATA_OBJECT_TYPE_ICON_ID:
 		return parse_dataobj_icon_id;
 	case STK_DATA_OBJECT_TYPE_IMMEDIATE_RESPONSE:
diff --git a/src/stkutil.h b/src/stkutil.h
index 93ac854..00c985a 100644
--- a/src/stkutil.h
+++ b/src/stkutil.h
@@ -345,6 +345,15 @@ struct stk_result {
 	unsigned char *additional;
 };
 
+/* Defined in TS 102.223 Section 8.19 */
+struct stk_location_info {
+	char mnc[OFONO_MAX_MNC_LENGTH + 1];
+	char mcc[OFONO_MAX_MCC_LENGTH + 1];
+	unsigned char lac_tac[2];
+	unsigned char cell_id[2];
+	unsigned char ext_cell_id[2];
+};
+
 /* Define the struct of single file in TS102.223 Section 8.18.
  * According to TS 11.11 Section 6.2, each file id has two bytes, and the
  * maximum Dedicated File level is 2. So the maximum size of file is 8, which
-- 
1.6.3.3