frame_relay.c File Reference

Implement frame relay/PVC by Q.933. More...

#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>
#include <osmocom/gprs/frame_relay.h>
#include <osmocom/core/endian.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/tdef.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/msgb.h>
#include <osmocom/gsm/tlv.h>
#include <osmocom/vty/vty.h>
#include <osmocom/vty/tdef_vty.h>

Data Structures
struct	q933_a_hdr
struct	q933_a_pvc_sts

Macros
#define	LOGPFRL(frl, lvl, fmt, args ...)    LOGP(DFR, lvl, "%s: " fmt, (frl)->name, ## args)
#define	DFR   DLNS
#define	LAPF_UI   0x03 /* UI control word */
#define	Q931_PDISC_CC   0x08 /* protocol discriminator */
#define	LMI_Q933A_CALLREF   0x00 /* NULL call-ref */
#define	LMI_Q933A_DLCI   0 /* Q.933A DLCI */
#define	LMI_CISCO_DLCI   1023 /* Cisco DLCI */
#define	MAX_SUPPORTED_PVC   10

Enumerations
enum	q931_msgtype {   Q931_MSGT_ALERTING = 0x01 ,   Q931_MSGT_CALL_PROCEEDING = 0x02 ,   Q931_MSGT_CONNECT = 0x07 ,   Q931_MSGT_CONNECT_ACK = 0x0f ,   Q931_MSGT_PROGRESS = 0x03 ,   Q931_MSGT_SETUP = 0x05 ,   Q931_MSGT_SETUP_ACK = 0x0d ,   Q931_MSGT_RESUME = 0x26 ,   Q931_MSGT_RESUME_ACK = 0x2e ,   Q931_MSGT_RESUME_REJ = 0x22 ,   Q931_MSGT_SUSPEND = 0x25 ,   Q931_MSGT_SUSPEND_ACK = 0x2d ,   Q931_MSGT_USER_INFO = 0x20 ,   Q931_MSGT_DISCONNECT = 0x45 ,   Q931_MSGT_RELEASE = 0x4d ,   Q931_MSGT_RELEASE_COMPLETE = 0x5a ,   Q931_MSGT_RESTART = 0x46 ,   Q931_MSGT_RESTART_ACK = 0x4e ,   Q931_MSGT_SEGMENT = 0x60 ,   Q931_MSGT_CONGESTION_CONTROL = 0x79 ,   Q931_MSGT_IFORMATION = 0x7b ,   Q931_MSGT_NOTIFY = 0x6e ,   Q931_MSGT_STATUS = 0x7d ,   Q931_MSGT_STATUS_ENQUIRY = 0x75 }
enum	q933_type_of_report {   Q933_REPT_FULL_STATUS = 0x00 ,   Q933_REPT_LINK_INTEGRITY_VERIF = 0x01 ,   Q933_REPT_SINGLE_PVC_ASYNC_STS = 0x02 }
enum	q933_iei {   Q933_IEI_REPORT_TYPE = 0x51 ,   Q933_IEI_LINK_INT_VERIF = 0x53 ,   Q933_IEI_PVC_STATUS = 0x57 }
enum	q933_pvc_status {   Q933_PVC_STATUS_DLC_ACTIVE = 0x02 ,   Q933_PVC_STATUS_DLC_DELETE = 0x04 ,   Q933_PVC_STATUS_DLC_NEW = 0x08 }

Functions
struct q933_a_hdr	__attribute__ ((packed))
static void	check_link_state (struct osmo_fr_link *link, bool valid)
static uint16_t	q922_to_dlci (const uint8_t *hdr)
static void	dlci_to_q922 (uint8_t *hdr, uint16_t dlci)
static void	dlc_set_active (struct osmo_fr_dlc *dlc, bool active)
static struct msgb *	q933_msgb_alloc (uint16_t dlci, uint8_t prot_disc, uint8_t msg_type)
static uint8_t	link_get_tx_seq (struct osmo_fr_link *link)
static void	msgb_put_link_int_verif (struct msgb *msg, struct osmo_fr_link *link)
static void	dlc_destroy (struct osmo_fr_dlc *dlc)
static void	msgb_put_pvc_status (struct msgb *msg, struct osmo_fr_dlc *dlc)
static int	tx_lmi_q933_status_enq (struct osmo_fr_link *link, uint8_t rep_type)
static int	tx_lmi_q933_status (struct osmo_fr_link *link, uint8_t rep_type)
static void	link_set_failed (struct osmo_fr_link *link)
static int	rx_lmi_q933_status_enq (struct msgb *msg, struct tlv_parsed *tp)
static int	validate_pvc_status (struct tlv_parsed *tp, size_t tp_len)
static int	parse_full_pvc_status (struct osmo_fr_link *link, struct tlv_parsed *tp, size_t tp_len)
static int	parse_link_pvc_status (struct osmo_fr_link *link, struct tlv_parsed *tp, size_t tp_len)
static size_t	count_pvc_status (struct tlv_parsed *tp, size_t tp_len)
static int	rx_lmi_q933_status (struct msgb *msg, struct tlv_parsed *tp)
static int	rx_lmi_q922 (struct msgb *msg)
int	osmo_fr_rx (struct msgb *msg)
int	osmo_fr_tx_dlc (struct msgb *msg)
static void	fr_t391_cb (void *data)
static void	fr_t392_cb (void *data)
struct osmo_fr_network *	osmo_fr_network_alloc (void *ctx)
void	osmo_fr_network_free (struct osmo_fr_network *net)
struct osmo_fr_link *	osmo_fr_link_alloc (struct osmo_fr_network *net, enum osmo_fr_role role, const char *name)
void	osmo_fr_link_free (struct osmo_fr_link *link)
struct osmo_fr_dlc *	osmo_fr_dlc_alloc (struct osmo_fr_link *link, uint16_t dlci)
void	osmo_fr_dlc_free (struct osmo_fr_dlc *dlc)
struct osmo_fr_dlc *	osmo_fr_dlc_by_dlci (struct osmo_fr_link *link, uint16_t dlci)
static void	fr_dlc_dump_vty (struct vty *vty, const struct osmo_fr_dlc *dlc)
static void	fr_link_dump_vty (struct vty *vty, const struct osmo_fr_link *link)
void	osmo_fr_network_dump_vty (struct vty *vty, const struct osmo_fr_network *net)

Variables
uint8_t	prot_disc
uint8_t	call_ref
uint8_t	msg_type
const struct value_string	osmo_fr_role_names []
struct osmo_tdef	fr_tdefs []
static const struct tlv_definition	q933_att_tlvdef

Detailed Description

Implement frame relay/PVC by Q.933.

Macro Definition Documentation

DFR

#define DFR   DLNS

LAPF_UI

#define LAPF_UI   0x03 /* UI control word */

LMI_CISCO_DLCI

#define LMI_CISCO_DLCI   1023 /* Cisco DLCI */

LMI_Q933A_CALLREF

#define LMI_Q933A_CALLREF   0x00 /* NULL call-ref */

LMI_Q933A_DLCI

#define LMI_Q933A_DLCI   0 /* Q.933A DLCI */

LOGPFRL

#define LOGPFRL	(		frl,
			lvl,
			fmt,
			args ...
	)		LOGP(DFR, lvl, "%s: " fmt, (frl)->name, ## args)

MAX_SUPPORTED_PVC

#define MAX_SUPPORTED_PVC   10

Q931_PDISC_CC

#define Q931_PDISC_CC   0x08 /* protocol discriminator */

Enumeration Type Documentation

q931_msgtype

enum q931_msgtype

Enumerator
Q931_MSGT_ALERTING
Q931_MSGT_CALL_PROCEEDING
Q931_MSGT_CONNECT
Q931_MSGT_CONNECT_ACK
Q931_MSGT_PROGRESS
Q931_MSGT_SETUP
Q931_MSGT_SETUP_ACK
Q931_MSGT_RESUME
Q931_MSGT_RESUME_ACK
Q931_MSGT_RESUME_REJ
Q931_MSGT_SUSPEND
Q931_MSGT_SUSPEND_ACK
Q931_MSGT_USER_INFO
Q931_MSGT_DISCONNECT
Q931_MSGT_RELEASE
Q931_MSGT_RELEASE_COMPLETE
Q931_MSGT_RESTART
Q931_MSGT_RESTART_ACK
Q931_MSGT_SEGMENT
Q931_MSGT_CONGESTION_CONTROL
Q931_MSGT_IFORMATION
Q931_MSGT_NOTIFY
Q931_MSGT_STATUS
Q931_MSGT_STATUS_ENQUIRY

q933_iei

enum q933_iei

Enumerator
Q933_IEI_REPORT_TYPE
Q933_IEI_LINK_INT_VERIF
Q933_IEI_PVC_STATUS

q933_pvc_status

enum q933_pvc_status

Enumerator
Q933_PVC_STATUS_DLC_ACTIVE
Q933_PVC_STATUS_DLC_DELETE
Q933_PVC_STATUS_DLC_NEW

q933_type_of_report

enum q933_type_of_report

Enumerator
Q933_REPT_FULL_STATUS
Q933_REPT_LINK_INTEGRITY_VERIF
Q933_REPT_SINGLE_PVC_ASYNC_STS

Function Documentation

check_link_state()

static void check_link_state ( struct osmo_fr_link *  link, bool  valid  )

static

References osmo_fr_dlc::add, osmo_fr_link::cb_data, osmo_fr_dlc::del, osmo_fr_link::dlc_list, dlc_set_active(), FR_ROLE_USER_EQUIPMENT, osmo_fr_dlc::link, link_set_failed(), list, llist_for_each_entry, LOGL_NOTICE, LOGPFRL, osmo_fr_network::n392, osmo_fr_network::n393, osmo_fr_link::net, osmo_fr_link::polling_count, osmo_fr_link::role, osmo_fr_link::state, osmo_fr_link::status_cb, and osmo_fr_link::succeed.

Referenced by fr_t392_cb(), rx_lmi_q933_status(), and rx_lmi_q933_status_enq().

count_pvc_status()

static size_t count_pvc_status ( struct tlv_parsed *  tp, size_t  tp_len  )

static

References Q933_IEI_PVC_STATUS, and TLVP_PRESENT.

Referenced by rx_lmi_q933_status().

dlc_destroy()

static void dlc_destroy ( struct osmo_fr_dlc *  dlc )

static

References osmo_fr_dlc::list, and llist_del().

Referenced by msgb_put_pvc_status().

dlc_set_active()

static void dlc_set_active ( struct osmo_fr_dlc *  dlc, bool  active  )

static

References osmo_fr_dlc::active, osmo_fr_dlc::cb_data, osmo_fr_dlc::dlci, osmo_fr_dlc::link, LOGL_NOTICE, LOGPFRL, and osmo_fr_dlc::status_cb.

Referenced by check_link_state(), link_set_failed(), parse_full_pvc_status(), parse_link_pvc_status(), and rx_lmi_q933_status_enq().

dlci_to_q922()

static void dlci_to_q922 ( uint8_t *  hdr, uint16_t  dlci  )

inlinestatic

References hdr.

Referenced by osmo_fr_tx_dlc(), and q933_msgb_alloc().

fr_dlc_dump_vty()

static void fr_dlc_dump_vty ( struct vty *  vty, const struct osmo_fr_dlc *  dlc  )

static

References osmo_fr_dlc::active, osmo_fr_dlc::add, osmo_fr_dlc::del, osmo_fr_dlc::dlci, VTY_NEWLINE, and vty_out().

Referenced by fr_link_dump_vty().

fr_link_dump_vty()

static void fr_link_dump_vty ( struct vty *  vty, const struct osmo_fr_link *  link  )

static

References osmo_fr_link::dlc_list, fr_dlc_dump_vty(), FR_ROLE_USER_EQUIPMENT, osmo_fr_link::last_rx_seq, osmo_fr_link::last_tx_seq, osmo_fr_dlc::link, list, llist_for_each_entry, osmo_fr_link::name, osmo_fr_link::role, VTY_NEWLINE, and vty_out().

Referenced by osmo_fr_network_dump_vty().

fr_t391_cb()

static void fr_t391_cb ( void *  data )

static

References data, osmo_fr_network::n391, osmo_fr_link::net, OSMO_ASSERT, osmo_tdef_get(), OSMO_TDEF_S, osmo_timer_schedule(), osmo_fr_link::polling_count, Q933_REPT_FULL_STATUS, Q933_REPT_LINK_INTEGRITY_VERIF, osmo_fr_link::t391, osmo_fr_network::T_defs, and tx_lmi_q933_status_enq().

Referenced by osmo_fr_link_alloc().

fr_t392_cb()

static void fr_t392_cb ( void *  data )

static

References check_link_state(), data, osmo_fr_link::err_count, osmo_fr_link::net, OSMO_ASSERT, osmo_tdef_get(), OSMO_TDEF_S, osmo_timer_schedule(), osmo_fr_link::t392, and osmo_fr_network::T_defs.

Referenced by osmo_fr_link_alloc().

link_get_tx_seq()

static uint8_t link_get_tx_seq ( struct osmo_fr_link *  link )

static

References osmo_fr_link::last_tx_seq.

Referenced by msgb_put_link_int_verif().

link_set_failed()

static void link_set_failed ( struct osmo_fr_link *  link )

static

References osmo_fr_link::cb_data, osmo_fr_link::dlc_list, dlc_set_active(), osmo_fr_dlc::link, list, llist_for_each_entry, LOGL_NOTICE, LOGPFRL, osmo_fr_link::state, and osmo_fr_link::status_cb.

Referenced by check_link_state(), and rx_lmi_q933_status_enq().

msgb_put_link_int_verif()

static void msgb_put_link_int_verif ( struct msgb *  msg, struct osmo_fr_link *  link  )

static

References osmo_fr_link::last_rx_seq, link_get_tx_seq(), msg, msgb_tlv_put(), and Q933_IEI_LINK_INT_VERIF.

Referenced by tx_lmi_q933_status(), and tx_lmi_q933_status_enq().

msgb_put_pvc_status()

static void msgb_put_pvc_status ( struct msgb *  msg, struct osmo_fr_dlc *  dlc  )

static

References osmo_fr_dlc::active, osmo_fr_dlc::add, osmo_fr_dlc::del, dlc_destroy(), osmo_fr_dlc::dlci, msg, msgb_tlv_put(), Q933_IEI_PVC_STATUS, Q933_PVC_STATUS_DLC_ACTIVE, Q933_PVC_STATUS_DLC_DELETE, and Q933_PVC_STATUS_DLC_NEW.

Referenced by tx_lmi_q933_status().

osmo_fr_dlc_alloc()

struct osmo_fr_dlc * osmo_fr_dlc_alloc	(	struct osmo_fr_link *	link,
		uint16_t	dlci
	)

References osmo_fr_dlc::active, osmo_fr_dlc::add, osmo_fr_link::dlc_list, osmo_fr_dlc::dlci, osmo_fr_dlc::link, osmo_fr_dlc::list, llist_add_tail(), Q933_REPT_SINGLE_PVC_ASYNC_STS, and tx_lmi_q933_status().

Referenced by fr_alloc_vc(), parse_full_pvc_status(), and parse_link_pvc_status().

osmo_fr_dlc_by_dlci()

struct osmo_fr_dlc * osmo_fr_dlc_by_dlci	(	struct osmo_fr_link *	link,
		uint16_t	dlci
	)

References osmo_fr_link::dlc_list, osmo_fr_dlc::dlci, osmo_fr_dlc::link, list, and llist_for_each_entry.

Referenced by osmo_fr_rx(), parse_full_pvc_status(), and parse_link_pvc_status().

osmo_fr_dlc_free()

void osmo_fr_dlc_free

(

struct osmo_fr_dlc *

dlc

)

References osmo_fr_dlc::list, and llist_del().

Referenced by osmo_fr_link_free().

osmo_fr_link_alloc()

struct osmo_fr_link * osmo_fr_link_alloc	(	struct osmo_fr_network *	net,
		enum osmo_fr_role	role,
		const char *	name
	)

References osmo_fr_link::dlc_list, FR_ROLE_NETWORK_EQUIPMENT, FR_ROLE_USER_EQUIPMENT, fr_t391_cb(), fr_t392_cb(), INIT_LLIST_HEAD, osmo_fr_link::list, llist_add_tail(), LOGL_INFO, LOGPFRL, name, osmo_fr_link::name, net, osmo_fr_link::net, osmo_fr_role_str(), osmo_tdef_get(), OSMO_TDEF_S, osmo_timer_schedule(), osmo_timer_setup(), osmo_fr_link::role, osmo_fr_link::t391, osmo_fr_link::t392, and osmo_fr_network::T_defs.

Referenced by gprs_ns2_fr_bind().

osmo_fr_link_free()

void osmo_fr_link_free

(

struct osmo_fr_link *

link

)

References osmo_fr_link::dlc_list, osmo_fr_dlc::link, list, osmo_fr_link::list, llist_del(), llist_for_each_entry_safe, osmo_fr_dlc_free(), osmo_timer_del(), osmo_fr_link::t391, and osmo_fr_link::t392.

Referenced by free_bind(), gprs_ns2_fr_bind(), and osmo_fr_network_free().

osmo_fr_network_alloc()

struct osmo_fr_network * osmo_fr_network_alloc

(

void *

ctx

)

References fr_tdefs, INIT_LLIST_HEAD, net, and osmo_tdefs_reset().

Referenced by gprs_ns2_vty_init_reduced().

osmo_fr_network_dump_vty()

void osmo_fr_network_dump_vty	(	struct vty *	vty,
		const struct osmo_fr_network *	net
	)

References fr_link_dump_vty(), list, llist_for_each_entry, net, osmo_tdef_vty_out_all(), VTY_NEWLINE, and vty_out().

Referenced by DEFUN_HIDDEN().

osmo_fr_network_free()

void osmo_fr_network_free

(

struct osmo_fr_network *

net

)

References list, llist_for_each_entry_safe, net, and osmo_fr_link_free().

osmo_fr_rx()

int osmo_fr_rx

(

struct msgb *

msg

)

References osmo_fr_dlc::active, osmo_fr_dlc::cb_data, LMI_CISCO_DLCI, LMI_Q933A_DLCI, LOGL_ERROR, LOGL_NOTICE, LOGPFRL, msg, msgb_data(), msgb_free(), msgb_length(), OSMO_ASSERT, osmo_fr_dlc_by_dlci(), q922_to_dlci(), osmo_fr_dlc::rx_cb, rx_lmi_q922(), osmo_fr_link::state, osmo_fr_link::unknown_dlc_rx_cb, and osmo_fr_link::unknown_dlc_rx_cb_data.

Referenced by fr_netif_ofd_cb().

osmo_fr_tx_dlc()

int osmo_fr_tx_dlc

(

struct msgb *

msg

)

References osmo_fr_dlc::active, osmo_fr_link::cb_data, osmo_fr_dlc::dlci, dlci_to_q922(), osmo_fr_dlc::link, LOGL_DEBUG, LOGL_NOTICE, LOGPFRL, msg, msgb_free(), msgb_headroom(), msgb_push(), OSMO_ASSERT, osmo_fr_link::state, and osmo_fr_link::tx_cb.

Referenced by fr_vc_sendmsg().

parse_full_pvc_status()

static int parse_full_pvc_status ( struct osmo_fr_link *  link, struct tlv_parsed *  tp, size_t  tp_len  )

static

References osmo_fr_dlc::add, osmo_fr_dlc::del, osmo_fr_link::dlc_list, dlc_set_active(), osmo_fr_dlc::dlci, list, llist_for_each_entry_safe, LOGL_ERROR, LOGPFRL, osmo_fr_dlc_alloc(), osmo_fr_dlc_by_dlci(), Q933_IEI_PVC_STATUS, TLVP_PRESENT, TLVP_VAL_MINLEN, and validate_pvc_status().

Referenced by rx_lmi_q933_status().

parse_link_pvc_status()

static int parse_link_pvc_status ( struct osmo_fr_link *  link, struct tlv_parsed *  tp, size_t  tp_len  )

static

References osmo_fr_dlc::add, osmo_fr_dlc::del, dlc_set_active(), osmo_fr_dlc::dlci, LOGL_ERROR, LOGPFRL, osmo_fr_dlc_alloc(), osmo_fr_dlc_by_dlci(), Q933_IEI_PVC_STATUS, TLVP_PRESENT, TLVP_VAL_MINLEN, and validate_pvc_status().

Referenced by rx_lmi_q933_status().

q922_to_dlci()

static uint16_t q922_to_dlci ( const uint8_t *  hdr )

inlinestatic

References hdr.

Referenced by osmo_fr_rx().

q933_msgb_alloc()

static struct msgb * q933_msgb_alloc ( uint16_t  dlci, uint8_t  prot_disc, uint8_t  msg_type  )

static

References q933_a_hdr::call_ref, dlci_to_q922(), LAPF_UI, LMI_Q933A_CALLREF, msg, msg_type, q933_a_hdr::msg_type, msgb_alloc_headroom(), msgb_put(), prot_disc, and q933_a_hdr::prot_disc.

Referenced by tx_lmi_q933_status(), and tx_lmi_q933_status_enq().

rx_lmi_q922()

static int rx_lmi_q922 ( struct msgb *  msg )

static

References LAPF_UI, LOGL_NOTICE, LOGPFRL, MAX_SUPPORTED_PVC, msg, q933_a_hdr::msg_type, msgb_free(), msgb_l2, msgb_l2len(), msgb_l3, msgb_l3len(), OSMO_ASSERT, q933_a_hdr::prot_disc, Q931_MSGT_STATUS, Q931_MSGT_STATUS_ENQUIRY, Q931_PDISC_CC, q933_att_tlvdef, rx_lmi_q933_status(), rx_lmi_q933_status_enq(), and tlv_parse2().

Referenced by osmo_fr_rx().

rx_lmi_q933_status()

static int rx_lmi_q933_status ( struct msgb *  msg, struct tlv_parsed *  tp  )

static

References check_link_state(), count_pvc_status(), osmo_fr_link::expected_rep, FR_ROLE_NETWORK_EQUIPMENT, osmo_fr_link::last_rx_seq, osmo_fr_link::last_tx_seq, LOGL_ERROR, LOGL_NOTICE, LOGPFRL, MAX_SUPPORTED_PVC, msg, osmo_fr_link::net, OSMO_ASSERT, osmo_tdef_get(), OSMO_TDEF_S, osmo_timer_schedule(), parse_full_pvc_status(), parse_link_pvc_status(), Q933_IEI_LINK_INT_VERIF, Q933_IEI_REPORT_TYPE, Q933_REPT_FULL_STATUS, Q933_REPT_LINK_INTEGRITY_VERIF, Q933_REPT_SINGLE_PVC_ASYNC_STS, osmo_fr_link::role, osmo_fr_link::t392, osmo_fr_network::T_defs, TLVP_PRES_LEN, and TLVP_VAL.

Referenced by rx_lmi_q922().

rx_lmi_q933_status_enq()

static int rx_lmi_q933_status_enq ( struct msgb *  msg, struct tlv_parsed *  tp  )

static

References osmo_fr_dlc::add, check_link_state(), osmo_fr_dlc::del, osmo_fr_link::dlc_list, dlc_set_active(), osmo_fr_link::err_count, FR_ROLE_USER_EQUIPMENT, osmo_fr_link::last_rx_seq, osmo_fr_link::last_tx_seq, osmo_fr_dlc::link, link_set_failed(), list, llist_for_each_entry, LOGL_ERROR, LOGPFRL, msg, osmo_fr_link::net, OSMO_ASSERT, osmo_tdef_get(), OSMO_TDEF_S, osmo_timer_schedule(), Q933_IEI_LINK_INT_VERIF, Q933_IEI_REPORT_TYPE, osmo_fr_link::role, osmo_fr_link::state, osmo_fr_dlc::state_send, osmo_fr_link::t392, osmo_fr_network::T_defs, TLVP_PRES_LEN, TLVP_VAL, and tx_lmi_q933_status().

Referenced by rx_lmi_q922().

tx_lmi_q933_status()

static int tx_lmi_q933_status ( struct osmo_fr_link *  link, uint8_t  rep_type  )

static

References osmo_fr_dlc::add, osmo_fr_link::cb_data, osmo_fr_dlc::del, osmo_fr_link::dlc_list, msgb::dst, list, llist_for_each_entry, msgb_put_link_int_verif(), msgb_put_pvc_status(), msgb_tlv_put(), Q931_MSGT_STATUS, Q931_PDISC_CC, Q933_IEI_REPORT_TYPE, q933_msgb_alloc(), Q933_REPT_FULL_STATUS, Q933_REPT_LINK_INTEGRITY_VERIF, Q933_REPT_SINGLE_PVC_ASYNC_STS, osmo_fr_dlc::state_send, and osmo_fr_link::tx_cb.

Referenced by osmo_fr_dlc_alloc(), and rx_lmi_q933_status_enq().

tx_lmi_q933_status_enq()

static int tx_lmi_q933_status_enq ( struct osmo_fr_link *  link, uint8_t  rep_type  )

static

References osmo_fr_link::cb_data, msgb::dst, osmo_fr_link::expected_rep, msgb_put_link_int_verif(), msgb_tlv_put(), Q931_MSGT_STATUS_ENQUIRY, Q931_PDISC_CC, Q933_IEI_REPORT_TYPE, q933_msgb_alloc(), and osmo_fr_link::tx_cb.

Referenced by fr_t391_cb().

validate_pvc_status()

static int validate_pvc_status ( struct tlv_parsed *  tp, size_t  tp_len  )

static

References len(), Q933_IEI_PVC_STATUS, TLVP_LEN, and TLVP_PRESENT.

Referenced by parse_full_pvc_status(), and parse_link_pvc_status().

Variable Documentation

call_ref

uint8_t call_ref

fr_tdefs

struct osmo_tdef fr_tdefs[]

Initial value:

= {
        {
                .T=391,
                .default_val = 10,
                .min_val = 5,
                .max_val = 30,
                .desc = "Link integrity verification polling timer",
                        .unit =  OSMO_TDEF_S,
        }, {
                .T=392,
                .default_val = 15,
                .min_val = 5,
                .max_val = 30,
                .desc = "Polling verification timer",
                                .unit =  OSMO_TDEF_S,
        },
        {}
}

Referenced by osmo_fr_network_alloc().

msg_type

uint8_t msg_type

Referenced by q933_msgb_alloc().

osmo_fr_role_names

const struct value_string osmo_fr_role_names[]

Initial value:

= {
        { FR_ROLE_USER_EQUIPMENT,       "USER" },
        { FR_ROLE_NETWORK_EQUIPMENT,    "NETWORK" },
        { 0, NULL }
}

Referenced by osmo_fr_role_str().

prot_disc

uint8_t prot_disc

Referenced by q933_msgb_alloc().

q933_att_tlvdef

const struct tlv_definition q933_att_tlvdef

static

Initial value:

= {
        .def = {
                [Q933_IEI_REPORT_TYPE] = { TLV_TYPE_TLV },
                [Q933_IEI_LINK_INT_VERIF] = { TLV_TYPE_TLV },
                [Q933_IEI_PVC_STATUS] = { TLV_TYPE_TLV },
        },
}

Referenced by rx_lmi_q922().