bssgp_bvc_fsm.c File Reference

#include <string.h>
#include <stdio.h>
#include <osmocom/core/fsm.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/tdef.h>
#include <osmocom/gsm/gsm48.h>
#include <osmocom/gsm/tlv.h>
#include <osmocom/gprs/gprs_msgb.h>
#include <osmocom/gprs/gprs_bssgp.h>
#include <osmocom/gprs/gprs_bssgp2.h>
#include <osmocom/gprs/bssgp_bvc_fsm.h>
#include "common_vty.h"

Data Structures
struct	bvc_fsm_priv

Macros
#define	S(x)   (1 << (x))
#define	T1   1
#define	T2   2
#define	T1_SECS   osmo_tdef_get(bssgp_bvc_fsm_tdefs, 1, OSMO_TDEF_S, 5)
#define	T2_SECS   osmo_tdef_get(bssgp_bvc_fsm_tdefs, 2, OSMO_TDEF_S, 10)

Functions
static int	fi_tx_ptp (struct osmo_fsm_inst *fi, struct msgb *msg)
static int	fi_tx_sig (struct osmo_fsm_inst *fi, struct msgb *msg)
static void	_tx_bvc_reset (struct osmo_fsm_inst *fi, uint8_t cause)
static void	_tx_bvc_reset_ack (struct osmo_fsm_inst *fi)
static void	_tx_status (struct osmo_fsm_inst *fi, enum gprs_bssgp_cause cause, const struct msgb *rx)
static void	update_negotiated_features (struct osmo_fsm_inst *fi, const struct tlv_parsed *tp)
static void	_onenter_tail (struct osmo_fsm_inst *fi, uint32_t prev_state)
static void	bssgp_bvc_fsm_null (struct osmo_fsm_inst *fi, uint32_t event, void *data)
static void	bssgp_bvc_fsm_blocked_onenter (struct osmo_fsm_inst *fi, uint32_t prev_state)
static void	bssgp_bvc_fsm_blocked (struct osmo_fsm_inst *fi, uint32_t event, void *data)
static void	bssgp_bvc_fsm_wait_reset_ack (struct osmo_fsm_inst *fi, uint32_t event, void *data)
static void	bssgp_bvc_fsm_unblocked (struct osmo_fsm_inst *fi, uint32_t event, void *data)
static void	bssgp_bvc_fsm_allstate (struct osmo_fsm_inst *fi, uint32_t event, void *data)
static int	bssgp_bvc_fsm_timer_cb (struct osmo_fsm_inst *fi)
static struct osmo_fsm_inst *	_bvc_fsm_alloc (void *ctx, struct gprs_ns2_inst *nsi, bool role_sgsn, uint16_t nsei, uint16_t bvci)
struct osmo_fsm_inst *	bssgp_bvc_fsm_alloc_sig_bss (void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint32_t features)
	Allocate a SIGNALING-BVC FSM for the BSS role (facing a remote SGSN). More...
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)
	Allocate a PTP-BVC FSM for the BSS role (facing a remote SGSN). More...
struct osmo_fsm_inst *	bssgp_bvc_fsm_alloc_sig_sgsn (void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint32_t features)
	Allocate a SIGNALING-BVC FSM for the SGSN role (facing a remote BSS). More...
struct osmo_fsm_inst *	bssgp_bvc_fsm_alloc_ptp_sgsn (void *ctx, struct gprs_ns2_inst *nsi, uint16_t nsei, uint16_t bvci)
	Allocate a PTP-BVC FSM for the SGSN role (facing a remote BSS). More...
void	bssgp_bvc_fsm_set_ops (struct osmo_fsm_inst *fi, const struct bssgp_bvc_fsm_ops *ops, void *ops_priv)
	Set the 'operations' callbacks + private data. More...
bool	bssgp_bvc_fsm_is_unblocked (struct osmo_fsm_inst *fi)
	Return if the given BVC FSM is in UNBLOCKED state. More...
uint8_t	bssgp_bvc_fsm_get_block_cause (struct osmo_fsm_inst *fi)
	Determine the cause value why given BVC FSM is blocked. More...
uint32_t	bssgp_bvc_fsm_get_features_advertised (struct osmo_fsm_inst *fi)
	Return the advertised features / extended features. More...
uint32_t	bssgp_bvc_fsm_get_features_received (struct osmo_fsm_inst *fi)
	Return the received features / extended features. More...
uint32_t	bssgp_bvc_fsm_get_features_negotiated (struct osmo_fsm_inst *fi)
	Return the negotiated features / extended features. More...
void	bssgp_bvc_fsm_set_max_pdu_len (struct osmo_fsm_inst *fi, uint16_t max_pdu_len)
	Set the maximum size of a BSSGP PDU. More...
uint16_t	bssgp_bvc_fsm_get_max_pdu_len (const struct osmo_fsm_inst *fi)
	Return the maximum size of a BSSGP PDU ! On the NS layer this corresponds to the size of an NS SDU in NS-UNITDATA (3GPP TS 48.016 Ch. More...
static	__attribute__ ((constructor))

Variables
struct osmo_tdef	bssgp_bvc_fsm_tdefs []
static struct osmo_fsm	bssgp_bvc_fsm
static const struct value_string	ptp_bvc_event_names []
static const struct osmo_fsm_state	bssgp_bvc_fsm_states []

Macro Definition Documentation

S

#define S

(

x

)

(1 << (x))

T1

#define T1   1

T1_SECS

#define T1_SECS   osmo_tdef_get(bssgp_bvc_fsm_tdefs, 1, OSMO_TDEF_S, 5)

T2

#define T2   2

T2_SECS

#define T2_SECS   osmo_tdef_get(bssgp_bvc_fsm_tdefs, 2, OSMO_TDEF_S, 10)

Function Documentation

__attribute__()

static __attribute__ ( (constructor)  )

static

References bssgp_bvc_fsm, OSMO_ASSERT, and osmo_fsm_register().

_bvc_fsm_alloc()

static struct osmo_fsm_inst * _bvc_fsm_alloc ( void *  ctx, struct gprs_ns2_inst *  nsi, bool  role_sgsn, uint16_t  nsei, uint16_t  bvci  )

static

References bssgp_bvc_fsm, bvci, bvc_fsm_priv::bvci, LOGL_INFO, bvc_fsm_priv::max_pdu_len, nsei, bvc_fsm_priv::nsei, bvc_fsm_priv::nsi, osmo_fsm_inst_alloc(), osmo_fsm_inst_free(), osmo_fsm_inst::priv, and bvc_fsm_priv::role_sgsn.

Referenced by bssgp_bvc_fsm_alloc_ptp_bss(), bssgp_bvc_fsm_alloc_ptp_sgsn(), bssgp_bvc_fsm_alloc_sig_bss(), and bssgp_bvc_fsm_alloc_sig_sgsn().

_onenter_tail()

static void _onenter_tail ( struct osmo_fsm_inst *  fi, uint32_t  prev_state  )

static

References bvc_fsm_priv::bvci, bvc_fsm_priv::nsei, bvc_fsm_priv::ops, bvc_fsm_priv::ops_priv, osmo_fsm_inst::priv, osmo_fsm_inst::state, and bssgp_bvc_fsm_ops::state_chg_notification.

Referenced by bssgp_bvc_fsm_blocked_onenter().

_tx_bvc_reset()

static void _tx_bvc_reset ( struct osmo_fsm_inst *  fi, uint8_t  cause  )

static

References bvc_fsm_priv::advertised, bssgp2_enc_bvc_reset(), bssgp_bvc_fsm, bvc_fsm_priv::bvci, cause, bvc_fsm_priv::cell_id, bvc_fsm_priv::features, fi_tx_sig(), osmo_fsm_inst::fsm, OSMO_ASSERT, osmo_fsm_inst::priv, bvc_fsm_priv::ra_id, and bvc_fsm_priv::role_sgsn.

Referenced by bssgp_bvc_fsm_allstate(), and bssgp_bvc_fsm_timer_cb().

_tx_bvc_reset_ack()

static void _tx_bvc_reset_ack ( struct osmo_fsm_inst *  fi )

static

References bvc_fsm_priv::advertised, bssgp2_enc_bvc_reset_ack(), bssgp_bvc_fsm, bvc_fsm_priv::bvci, bvc_fsm_priv::cell_id, bvc_fsm_priv::features, fi_tx_sig(), osmo_fsm_inst::fsm, OSMO_ASSERT, osmo_fsm_inst::priv, bvc_fsm_priv::ra_id, and bvc_fsm_priv::role_sgsn.

Referenced by bssgp_bvc_fsm_allstate(), and bssgp_bvc_fsm_timer_cb().

_tx_status()

static void _tx_status ( struct osmo_fsm_inst *  fi, enum gprs_bssgp_cause  cause, const struct msgb *  rx  )

static

References bssgp2_enc_status(), BSSGP_CAUSE_BVCI_BLOCKED, BSSGP_CAUSE_UNKNOWN_BVCI, bvci, bvc_fsm_priv::bvci, cause, fi_tx_ptp(), fi_tx_sig(), bvc_fsm_priv::max_pdu_len, msgb_bvci, and osmo_fsm_inst::priv.

Referenced by bssgp_bvc_fsm_blocked(), and bssgp_bvc_fsm_unblocked().

bssgp_bvc_fsm_alloc_ptp_bss()

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
	)

Allocate a PTP-BVC FSM for the BSS role (facing a remote SGSN).

Parameters

[in]	ctx	talloc context from which to allocate
[in]	nsi	NS Instance on which this BVC operates
[in]	nsei	NS Entity Identifier on which this BVC operates
[in]	bvci	BVCI of this FSM
[in]	ra_id	Routing Area Identity of the cell (reported to SGSN)
[in]	cell_id	Cell Identifier of the cell (reported to SGSN)

Returns

newly-allocated FSM Instance; NULL in case of error

References _bvc_fsm_alloc(), bvci, bvc_fsm_priv::cell_id, nsei, bvc_fsm_priv::nsi, OSMO_ASSERT, osmo_fsm_inst::priv, and bvc_fsm_priv::ra_id.

bssgp_bvc_fsm_alloc_ptp_sgsn()

struct osmo_fsm_inst * bssgp_bvc_fsm_alloc_ptp_sgsn	(	void *	ctx,
		struct gprs_ns2_inst *	nsi,
		uint16_t	nsei,
		uint16_t	bvci
	)

Allocate a PTP-BVC FSM for the SGSN role (facing a remote BSS).

Parameters

[in]	ctx	talloc context from which to allocate
[in]	nsi	NS Instance on which this BVC operates
[in]	nsei	NS Entity Identifier on which this BVC operates
[in]	bvci	BVCI of this FSM

Returns

newly-allocated FSM Instance; NULL in case of error

References _bvc_fsm_alloc(), bvci, nsei, and OSMO_ASSERT.

bssgp_bvc_fsm_alloc_sig_bss()

struct osmo_fsm_inst * bssgp_bvc_fsm_alloc_sig_bss	(	void *	ctx,
		struct gprs_ns2_inst *	nsi,
		uint16_t	nsei,
		uint32_t	features
	)

Allocate a SIGNALING-BVC FSM for the BSS role (facing a remote SGSN).

Parameters

[in]	ctx	talloc context from which to allocate
[in]	nsi	NS Instance on which this BVC operates
[in]	nsei	NS Entity Identifier on which this BVC operates
[in]	features	Feature [byte 0] and Extended Feature [byte 1] bitmap

Returns

newly-allocated FSM Instance; NULL in case of error

References _bvc_fsm_alloc(), bvc_fsm_priv::advertised, bvc_fsm_priv::features, nsei, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_alloc_sig_sgsn()

struct osmo_fsm_inst * bssgp_bvc_fsm_alloc_sig_sgsn	(	void *	ctx,
		struct gprs_ns2_inst *	nsi,
		uint16_t	nsei,
		uint32_t	features
	)

Allocate a SIGNALING-BVC FSM for the SGSN role (facing a remote BSS).

Parameters

[in]	ctx	talloc context from which to allocate
[in]	nsi	NS Instance on which this BVC operates
[in]	nsei	NS Entity Identifier on which this BVC operates
[in]	features	Feature [byte 0] and Extended Feature [byte 1] bitmap

Returns

newly-allocated FSM Instance; NULL in case of error

References _bvc_fsm_alloc(), bvc_fsm_priv::advertised, bvc_fsm_priv::features, nsei, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_allstate()

static void bssgp_bvc_fsm_allstate ( struct osmo_fsm_inst *  fi, uint32_t  event, void *  data  )

static

References _tx_bvc_reset(), _tx_bvc_reset_ack(), BSSGP_BVCFSM_E_REQ_RESET, BSSGP_BVCFSM_E_RX_RESET, BSSGP_BVCFSM_S_UNBLOCKED, BSSGP_BVCFSM_S_WAIT_RESET_ACK, bssgp_cause_str(), BSSGP_IE_CAUSE, BSSGP_IE_CELL_ID, bssgp_parse_cell_id(), bvc_fsm_priv::bvci, cause, bvc_fsm_priv::cell_id, data, bvc_fsm_priv::last_reset_cause, bvc_fsm_priv::locally_blocked, LOGL_NOTICE, LOGPFSML, msgb_bcid, bvc_fsm_priv::nsei, bvc_fsm_priv::ops, bvc_fsm_priv::ops_priv, osmo_fsm_inst_state_chg, osmo_fsm_inst::priv, bvc_fsm_priv::ra_id, bssgp_bvc_fsm_ops::reset_notification, bvc_fsm_priv::role_sgsn, T2, T2_SECS, TLVP_VAL, and update_negotiated_features().

bssgp_bvc_fsm_blocked()

static void bssgp_bvc_fsm_blocked ( struct osmo_fsm_inst *  fi, uint32_t  event, void *  data  )

static

References _tx_status(), bssgp2_enc_bvc_block_ack(), bssgp2_enc_bvc_unblock(), bssgp2_enc_bvc_unblock_ack(), BSSGP_BVCFSM_E_REQ_UNBLOCK, BSSGP_BVCFSM_E_RX_BLOCK, BSSGP_BVCFSM_E_RX_BLOCK_ACK, BSSGP_BVCFSM_E_RX_UNBLOCK, BSSGP_BVCFSM_S_BLOCKED, BSSGP_BVCFSM_S_UNBLOCKED, BSSGP_CAUSE_SEM_INCORR_PDU, bssgp_cause_str(), BSSGP_IE_CAUSE, bvc_fsm_priv::bvci, cause, data, fi_tx_sig(), bvc_fsm_priv::locally_blocked, LOGL_ERROR, LOGL_NOTICE, LOGPFSML, msgb_bcid, osmo_fsm_inst_state_chg, osmo_fsm_inst::priv, bvc_fsm_priv::role_sgsn, T1, T1_SECS, and TLVP_VAL.

bssgp_bvc_fsm_blocked_onenter()

static void bssgp_bvc_fsm_blocked_onenter ( struct osmo_fsm_inst *  fi, uint32_t  prev_state  )

static

References _onenter_tail(), bvc_fsm_priv::bvci, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_get_block_cause()

uint8_t bssgp_bvc_fsm_get_block_cause

(

struct osmo_fsm_inst *

fi

)

Determine the cause value why given BVC FSM is blocked.

References bvc_fsm_priv::block_cause, bssgp_bvc_fsm, osmo_fsm_inst::fsm, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_get_features_advertised()

uint32_t bssgp_bvc_fsm_get_features_advertised

(

struct osmo_fsm_inst *

fi

)

Return the advertised features / extended features.

References bvc_fsm_priv::advertised, bssgp_bvc_fsm, bvc_fsm_priv::features, osmo_fsm_inst::fsm, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_get_features_negotiated()

uint32_t bssgp_bvc_fsm_get_features_negotiated

(

struct osmo_fsm_inst *

fi

)

Return the negotiated features / extended features.

References bssgp_bvc_fsm, bvc_fsm_priv::features, osmo_fsm_inst::fsm, bvc_fsm_priv::negotiated, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_get_features_received()

uint32_t bssgp_bvc_fsm_get_features_received

(

struct osmo_fsm_inst *

fi

)

Return the received features / extended features.

References bssgp_bvc_fsm, bvc_fsm_priv::features, osmo_fsm_inst::fsm, OSMO_ASSERT, osmo_fsm_inst::priv, and bvc_fsm_priv::received.

bssgp_bvc_fsm_get_max_pdu_len()

uint16_t bssgp_bvc_fsm_get_max_pdu_len

(

const struct osmo_fsm_inst *

fi

)

Return the maximum size of a BSSGP PDU ! On the NS layer this corresponds to the size of an NS SDU in NS-UNITDATA (3GPP TS 48.016 Ch.

9.2.10)

References bssgp_bvc_fsm, osmo_fsm_inst::fsm, bvc_fsm_priv::max_pdu_len, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_is_unblocked()

bool bssgp_bvc_fsm_is_unblocked

(

struct osmo_fsm_inst *

fi

)

Return if the given BVC FSM is in UNBLOCKED state.

References BSSGP_BVCFSM_S_UNBLOCKED, and osmo_fsm_inst::state.

bssgp_bvc_fsm_null()

static void bssgp_bvc_fsm_null ( struct osmo_fsm_inst *  fi, uint32_t  event, void *  data  )

static

References OSMO_ASSERT.

bssgp_bvc_fsm_set_max_pdu_len()

void bssgp_bvc_fsm_set_max_pdu_len	(	struct osmo_fsm_inst *	fi,
		uint16_t	max_pdu_len
	)

Set the maximum size of a BSSGP PDU.

! On the NS layer this corresponds to the size of an NS SDU in NS-UNITDATA (3GPP TS 48.016 Ch. 9.2.10)

References bssgp_bvc_fsm, osmo_fsm_inst::fsm, bvc_fsm_priv::max_pdu_len, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_set_ops()

void bssgp_bvc_fsm_set_ops	(	struct osmo_fsm_inst *	fi,
		const struct bssgp_bvc_fsm_ops *	ops,
		void *	ops_priv
	)

Set the 'operations' callbacks + private data.

Parameters

[in]	fi	FSM instance for which the data shall be set
[in]	ops	BSSGP BVC FSM operations (call-back functions) to register
[in]	ops_priv	opaque/private data pointer passed through to call-backs

References bssgp_bvc_fsm, osmo_fsm_inst::fsm, bvc_fsm_priv::ops, bvc_fsm_priv::ops_priv, OSMO_ASSERT, and osmo_fsm_inst::priv.

bssgp_bvc_fsm_timer_cb()

static int bssgp_bvc_fsm_timer_cb ( struct osmo_fsm_inst *  fi )

static

References _tx_bvc_reset(), _tx_bvc_reset_ack(), bvc_fsm_priv::block_cause, bssgp2_enc_bvc_block(), bssgp2_enc_bvc_unblock(), BSSGP_BVCFSM_S_BLOCKED, BSSGP_BVCFSM_S_UNBLOCKED, BSSGP_BVCFSM_S_WAIT_RESET_ACK, bvc_fsm_priv::bvci, fi_tx_sig(), bvc_fsm_priv::last_reset_cause, OSMO_ASSERT, osmo_fsm_inst_state_chg, osmo_fsm_inst::priv, osmo_fsm_inst::state, osmo_fsm_inst::T, T1, T1_SECS, T2, and T2_SECS.

bssgp_bvc_fsm_unblocked()

static void bssgp_bvc_fsm_unblocked ( struct osmo_fsm_inst *  fi, uint32_t  event, void *  data  )

static

References _tx_status(), bvc_fsm_priv::block_cause, bssgp2_dec_fc_bvc(), bssgp2_enc_bvc_block(), bssgp2_enc_bvc_block_ack(), bssgp2_enc_fc_bvc(), bssgp2_enc_fc_bvc_ack(), BSSGP_BVCFSM_E_REQ_BLOCK, BSSGP_BVCFSM_E_REQ_FC_BVC, BSSGP_BVCFSM_E_RX_BLOCK, BSSGP_BVCFSM_E_RX_FC_BVC, BSSGP_BVCFSM_E_RX_FC_BVC_ACK, BSSGP_BVCFSM_E_RX_UNBLOCK, BSSGP_BVCFSM_E_RX_UNBLOCK_ACK, BSSGP_BVCFSM_S_BLOCKED, BSSGP_BVCFSM_S_UNBLOCKED, BSSGP_CAUSE_SEM_INCORR_PDU, bssgp_cause_str(), BSSGP_IE_CAUSE, BSSGP_PDUT_BVC_UNBLOCK_ACK, bssgp_tx_simple_bvci(), BSSGP_XFEAT_GBIT, bvc_fsm_priv::bvci, data, bvc_fsm_priv::fc_granularity, bvc_fsm_priv::features, fi_tx_ptp(), fi_tx_sig(), bvc_fsm_priv::locally_blocked, LOGL_ERROR, LOGL_NOTICE, LOGPFSML, msgb_bcid, bvc_fsm_priv::negotiated, bvc_fsm_priv::nsei, bvc_fsm_priv::ops, bvc_fsm_priv::ops_priv, OSMO_ASSERT, osmo_fsm_inst_state_chg, osmo_fsm_inst::priv, bvc_fsm_priv::role_sgsn, bssgp_bvc_fsm_ops::rx_fc_bvc, T1, T1_SECS, bssgp2_flow_ctrl::tag, and TLVP_VAL.

bssgp_bvc_fsm_wait_reset_ack()

static void bssgp_bvc_fsm_wait_reset_ack ( struct osmo_fsm_inst *  fi, uint32_t  event, void *  data  )

static

References bvc_fsm_priv::block_cause, bssgp2_enc_bvc_block(), BSSGP_BVCFSM_E_RX_RESET, BSSGP_BVCFSM_E_RX_RESET_ACK, BSSGP_BVCFSM_S_BLOCKED, BSSGP_BVCFSM_S_UNBLOCKED, BSSGP_IE_CELL_ID, bssgp_parse_cell_id(), bvc_fsm_priv::bvci, cause, bvc_fsm_priv::cell_id, data, fi_tx_sig(), bvc_fsm_priv::last_reset_cause, bvc_fsm_priv::locally_blocked, msgb_bcid, bvc_fsm_priv::nsei, bvc_fsm_priv::ops, bvc_fsm_priv::ops_priv, osmo_fsm_inst_state_chg, osmo_fsm_inst::priv, bvc_fsm_priv::ra_id, bssgp_bvc_fsm_ops::reset_ack_notification, bvc_fsm_priv::role_sgsn, T1, T1_SECS, TLVP_VAL, and update_negotiated_features().

fi_tx_ptp()

static int fi_tx_ptp ( struct osmo_fsm_inst *  fi, struct msgb *  msg  )

static

References bssgp2_nsi_tx_ptp(), bssgp_bvc_fsm, bvc_fsm_priv::bvci, osmo_fsm_inst::fsm, LOGPFSM, msg, msgb_bssgph, bvc_fsm_priv::nsei, bvc_fsm_priv::nsi, OSMO_ASSERT, osmo_pdef_bssgp, osmo_tlv_prot_msg_name(), bssgp_normal_hdr::pdu_type, and osmo_fsm_inst::priv.

Referenced by _tx_status(), and bssgp_bvc_fsm_unblocked().

fi_tx_sig()

static int fi_tx_sig ( struct osmo_fsm_inst *  fi, struct msgb *  msg  )

static

References bssgp2_nsi_tx_sig(), bssgp_bvc_fsm, osmo_fsm_inst::fsm, LOGPFSM, msg, msgb_bssgph, bvc_fsm_priv::nsei, bvc_fsm_priv::nsi, OSMO_ASSERT, osmo_pdef_bssgp, osmo_tlv_prot_msg_name(), bssgp_normal_hdr::pdu_type, and osmo_fsm_inst::priv.

Referenced by _tx_bvc_reset(), _tx_bvc_reset_ack(), _tx_status(), bssgp_bvc_fsm_blocked(), bssgp_bvc_fsm_timer_cb(), bssgp_bvc_fsm_unblocked(), and bssgp_bvc_fsm_wait_reset_ack().

update_negotiated_features()

static void update_negotiated_features ( struct osmo_fsm_inst *  fi, const struct tlv_parsed *  tp  )

static

References bvc_fsm_priv::advertised, bssgp_bvc_fsm, BSSGP_IE_EXT_FEATURE_BITMAP, BSSGP_IE_FEATURE_BITMAP, bvc_fsm_priv::features, osmo_fsm_inst::fsm, LOGL_NOTICE, LOGPFSML, bvc_fsm_priv::negotiated, OSMO_ASSERT, osmo_fsm_inst::priv, bvc_fsm_priv::received, TLVP_PRES_LEN, and TLVP_VAL.

Referenced by bssgp_bvc_fsm_allstate(), and bssgp_bvc_fsm_wait_reset_ack().

Variable Documentation

bssgp_bvc_fsm

static struct osmo_fsm bssgp_bvc_fsm

static

Initial value:

= {
        .name = "BSSGP-BVC",
        .states = bssgp_bvc_fsm_states,
        .num_states = ARRAY_SIZE(bssgp_bvc_fsm_states),
        .allstate_event_mask = S(BSSGP_BVCFSM_E_REQ_RESET) |
                               S(BSSGP_BVCFSM_E_RX_RESET),
        .allstate_action = bssgp_bvc_fsm_allstate,
        .timer_cb = bssgp_bvc_fsm_timer_cb,
        .log_subsys = DLBSSGP,
        .event_names = ptp_bvc_event_names,
}

Referenced by __attribute__(), _bvc_fsm_alloc(), _tx_bvc_reset(), _tx_bvc_reset_ack(), bssgp_bvc_fsm_get_block_cause(), bssgp_bvc_fsm_get_features_advertised(), bssgp_bvc_fsm_get_features_negotiated(), bssgp_bvc_fsm_get_features_received(), bssgp_bvc_fsm_get_max_pdu_len(), bssgp_bvc_fsm_set_max_pdu_len(), bssgp_bvc_fsm_set_ops(), fi_tx_ptp(), fi_tx_sig(), and update_negotiated_features().

bssgp_bvc_fsm_states

const struct osmo_fsm_state bssgp_bvc_fsm_states[]

static

bssgp_bvc_fsm_tdefs

struct osmo_tdef bssgp_bvc_fsm_tdefs[]

ptp_bvc_event_names

const struct value_string ptp_bvc_event_names[]

static

Initial value:

= {
        { BSSGP_BVCFSM_E_RX_BLOCK, "RX-BVC-BLOCK" },
        { BSSGP_BVCFSM_E_RX_BLOCK_ACK, "RX-BVC-BLOCK-ACK" },
        { BSSGP_BVCFSM_E_RX_UNBLOCK, "RX-BVC-UNBLOCK" },
        { BSSGP_BVCFSM_E_RX_UNBLOCK_ACK, "RX-BVC-UNBLOCK-ACK" },
        { BSSGP_BVCFSM_E_RX_RESET, "RX-BVC-RESET" },
        { BSSGP_BVCFSM_E_RX_RESET_ACK, "RX-BVC-RESET-ACK" },
        { BSSGP_BVCFSM_E_RX_FC_BVC, "RX-FLOW-CONTROL-BVC" },
        { BSSGP_BVCFSM_E_RX_FC_BVC_ACK, "RX-FLOW-CONTROL-BVC-ACK" },
        { BSSGP_BVCFSM_E_REQ_BLOCK, "REQ-BLOCK" },
        { BSSGP_BVCFSM_E_REQ_UNBLOCK, "REQ-UNBLOCK" },
        { BSSGP_BVCFSM_E_REQ_RESET, "REQ-RESET" },
        { BSSGP_BVCFSM_E_REQ_FC_BVC, "REQ-FLOW-CONTROL-BVC" },
        { 0, NULL }
}