1 files changed, 72 insertions, 0 deletions
diff --git a/include/osmocom/gprs/gprs_bssgp2.h b/include/osmocom/gprs/gprs_bssgp2.h
new file mode 100644
index 00000000..53e76e3a
--- /dev/null
+++ b/include/osmocom/gprs/gprs_bssgp2.h
@@ -0,0 +1,72 @@
+#pragma once
+#include <stdint.h>
+
+#include <osmocom/gprs/protocol/gsm_08_18.h>
+#include <osmocom/gprs/gprs_ns2.h>
+
+struct bssgp2_flow_ctrl;
+struct gprs_ns2_inst;
+struct gprs_ra_id;
+struct msgb;
+
+struct bssgp2_flow_ctrl {
+	uint8_t tag;
+	/* maximum bucket size (Bmax) in bytes */
+	uint64_t bucket_size_max;
+	/*! bucket leak rate in _bytes_ per second */
+	uint64_t bucket_leak_rate;
+	/* percentage how full the given bucket is */
+	uint8_t bucket_full_ratio;
+	bool bucket_full_ratio_present;
+	union {
+		/*! FC-BVC specifi members */
+		struct {
+			/*! default maximum bucket size per MS in bytes */
+			uint64_t bmax_default_ms;
+			/*! default bucket leak rate (R) for MS flow control bucket */
+			uint64_t r_default_ms;
+
+			/*! average milliseconds of queueing delay for a BVC */
+			uint32_t measurement;
+			bool measurement_present;
+		} bvc;
+		/*! FC-MS specifi members */
+		struct {
+			/*! TLLI of the MS */
+			uint32_t tlli;
+		} ms;
+	} u;
+};
+
+
+int bssgp2_nsi_tx_ptp(struct gprs_ns2_inst *nsi, uint16_t nsei, uint16_t bvci,
+		      struct msgb *msg, uint32_t lsp);
+
+int bssgp2_nsi_tx_sig(struct gprs_ns2_inst *nsi, uint16_t nsei, struct msgb *msg, uint32_t lsp);
+
+struct msgb *bssgp2_enc_bvc_block(uint16_t bvci, enum gprs_bssgp_cause cause);
+
+struct msgb *bssgp2_enc_bvc_block_ack(uint16_t bvci);
+
+struct msgb *bssgp2_enc_bvc_unblock(uint16_t bvci);
+
+struct msgb *bssgp2_enc_bvc_unblock_ack(uint16_t bvci);
+
+struct msgb *bssgp2_enc_bvc_reset(uint16_t bvci, enum gprs_bssgp_cause cause,
+				  const struct gprs_ra_id *ra_id, uint16_t cell_id,
+				  const uint8_t *feat_bm, const uint8_t *ext_feat_bm);
+
+struct msgb *bssgp2_enc_bvc_reset_ack(uint16_t bvci, const struct gprs_ra_id *ra_id, uint16_t cell_id,
+				      const uint8_t *feat_bm, const uint8_t *ext_feat_bm);
+
+struct msgb *bssgp2_enc_flush_ll(uint32_t tlli, uint16_t old_bvci,
+				 const uint16_t *new_bvci, const uint16_t *nsei);
+struct msgb *bssgp2_enc_status(uint8_t cause, const uint16_t *bvci, const struct msgb *orig_msg, uint16_t max_pdu_len);
+
+
+int bssgp2_dec_fc_bvc(struct bssgp2_flow_ctrl *fc, const struct tlv_parsed *tp);
+struct msgb *bssgp2_enc_fc_bvc(const struct bssgp2_flow_ctrl *fc, enum bssgp_fc_granularity *gran);
+struct msgb *bssgp2_enc_fc_bvc_ack(uint8_t tag);
+int bssgp2_dec_fc_ms(struct bssgp2_flow_ctrl *fc, struct tlv_parsed *tp);
+struct msgb *bssgp2_enc_fc_ms(const struct bssgp2_flow_ctrl *fc, enum bssgp_fc_granularity *gran);
+struct msgb *bssgp2_enc_fc_ms_ack(uint32_t tlli, uint8_t tag);