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#pragma once
#include <stdint.h>
struct gprs_ns2_inst;
struct osmo_fsm_inst;
struct gprs_ra_id;
struct bssgp2_flow_ctrl;
enum bssp_ptp_bvc_fsm_state {
BSSGP_BVCFSM_S_NULL,
BSSGP_BVCFSM_S_BLOCKED,
BSSGP_BVCFSM_S_WAIT_RESET_ACK,
BSSGP_BVCFSM_S_UNBLOCKED,
};
enum bssgp_ptp_bvc_fsm_event {
/* Rx of BSSGP PDUs from the remote side; 'data' is 'struct tlv_parsed', and
* the assumption is that the caller has already validated all mandatory IEs
* are present and of sufficient length */
BSSGP_BVCFSM_E_RX_BLOCK,
BSSGP_BVCFSM_E_RX_BLOCK_ACK,
BSSGP_BVCFSM_E_RX_UNBLOCK,
BSSGP_BVCFSM_E_RX_UNBLOCK_ACK,
BSSGP_BVCFSM_E_RX_RESET,
BSSGP_BVCFSM_E_RX_RESET_ACK,
BSSGP_BVCFSM_E_RX_FC_BVC,
BSSGP_BVCFSM_E_RX_FC_BVC_ACK,
/* Requests of the local user */
BSSGP_BVCFSM_E_REQ_BLOCK, /* data: uint8_t *cause */
BSSGP_BVCFSM_E_REQ_UNBLOCK,
BSSGP_BVCFSM_E_REQ_RESET, /* data: uint8_t *cause */
BSSGP_BVCFSM_E_REQ_FC_BVC, /* data: struct bssgp2_flow_ctrl */
};
struct bssgp_bvc_fsm_ops {
/* call-back notifying the user of a state change */
void (*state_chg_notification)(uint16_t nsei, uint16_t bvci, int old_state, int new_state,
void *priv);
/* call-back notifying the user of a BVC-RESET event */
void (*reset_notification)(uint16_t nsei, uint16_t bvci, const struct gprs_ra_id *ra_id,
uint16_t cell_id, uint8_t cause, void *priv);
void (*rx_fc_bvc)(uint16_t nsei, uint16_t bvci, const struct bssgp2_flow_ctrl *fc, void *priv);
void (*reset_ack_notification)(uint16_t nsei, uint16_t bvci, const struct gprs_ra_id *ra_id,
uint16_t cell_id, uint8_t cause, void *priv);
};
struct osmo_fsm_inst *
bssgp_bvc_fsm_alloc_sig_bss(void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint32_t features);
struct osmo_fsm_inst *
bssgp_bvc_fsm_alloc_ptp_bss(void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint16_t bvci,
const struct gprs_ra_id *ra_id, uint16_t cell_id);
struct osmo_fsm_inst *
bssgp_bvc_fsm_alloc_sig_sgsn(void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint32_t features);
struct osmo_fsm_inst *
bssgp_bvc_fsm_alloc_ptp_sgsn(void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint16_t bvci);
void bssgp_bvc_fsm_set_ops(struct osmo_fsm_inst *fi, const struct bssgp_bvc_fsm_ops *ops, void *ops_priv);
bool bssgp_bvc_fsm_is_unblocked(struct osmo_fsm_inst *fi);
uint8_t bssgp_bvc_fsm_get_block_cause(struct osmo_fsm_inst *fi);
uint32_t bssgp_bvc_fsm_get_features_advertised(struct osmo_fsm_inst *fi);
uint32_t bssgp_bvc_fsm_get_features_received(struct osmo_fsm_inst *fi);
uint32_t bssgp_bvc_fsm_get_features_negotiated(struct osmo_fsm_inst *fi);
void bssgp_bvc_fsm_set_max_pdu_len(struct osmo_fsm_inst *fi, uint16_t max_pdu_len);
uint16_t bssgp_bvc_fsm_get_max_pdu_len(const struct osmo_fsm_inst *fi);
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