simutil: Add utilities for encoding BTLV and CTLV

1 files changed, 47 insertions, 0 deletions

diff --git a/src/simutil.h b/src/simutil.h
index 144bf12f..c64d275d 100644
--- a/src/simutil.h
+++ b/src/simutil.h
@@ -115,6 +115,25 @@ struct ber_tlv_iter {
 	const unsigned char *data;
 };
 
+struct ber_tlv_builder {
+	unsigned int max;
+	unsigned int pos;
+	unsigned char *pdu;
+	struct ber_tlv_builder *parent;
+
+	unsigned int tag;
+	enum ber_tlv_data_type class;
+	enum ber_tlv_data_encoding_type encoding;
+	unsigned int len;
+};
+
+struct comprehension_tlv_builder {
+	unsigned int max;
+	unsigned int pos;
+	unsigned char *pdu;
+	struct ber_tlv_builder *parent;
+};
+
 void simple_tlv_iter_init(struct simple_tlv_iter *iter,
 				const unsigned char *pdu, unsigned int len);
 gboolean simple_tlv_iter_next(struct simple_tlv_iter *iter);
@@ -136,6 +155,18 @@ const unsigned char *comprehension_tlv_iter_get_data(
 void comprehension_tlv_iter_copy(struct comprehension_tlv_iter *from,
 					struct comprehension_tlv_iter *to);
 
+gboolean comprehension_tlv_builder_init(
+				struct comprehension_tlv_builder *builder,
+				unsigned char *pdu, unsigned int size);
+gboolean comprehension_tlv_builder_next(
+				struct comprehension_tlv_builder *builder,
+				gboolean cr, unsigned short tag);
+gboolean comprehension_tlv_builder_set_length(
+				struct comprehension_tlv_builder *builder,
+				unsigned int len);
+unsigned char *comprehension_tlv_builder_get_data(
+				struct comprehension_tlv_builder *builder);
+
 void ber_tlv_iter_init(struct ber_tlv_iter *iter, const unsigned char *pdu,
 			unsigned int len);
 /*
@@ -168,6 +199,22 @@ void ber_tlv_iter_recurse_simple(struct ber_tlv_iter *iter,
 void ber_tlv_iter_recurse_comprehension(struct ber_tlv_iter *iter,
 					struct comprehension_tlv_iter *recurse);
 
+gboolean ber_tlv_builder_init(struct ber_tlv_builder *builder,
+				unsigned char *pdu, unsigned int size);
+gboolean ber_tlv_builder_next(struct ber_tlv_builder *builder,
+				enum ber_tlv_data_type class,
+				enum ber_tlv_data_encoding_type encoding,
+				unsigned int new_tag);
+gboolean ber_tlv_builder_set_length(struct ber_tlv_builder *builder,
+					unsigned int len);
+unsigned char *ber_tlv_builder_get_data(struct ber_tlv_builder *builder);
+gboolean ber_tlv_builder_recurse(struct ber_tlv_builder *builder,
+					struct ber_tlv_builder *recurse);
+gboolean ber_tlv_builder_recurse_comprehension(struct ber_tlv_builder *builder,
+				struct comprehension_tlv_builder *recurse);
+void ber_tlv_builder_optimize(struct ber_tlv_builder *builder,
+				unsigned char **pdu, unsigned int *len);
+
 struct sim_eons *sim_eons_new(int pnn_records);
 void sim_eons_add_pnn_record(struct sim_eons *eons, int record,
 				const guint8 *tlv, int length);