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freebsd/sys/netatm/spans/spans_var.h

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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $FreeBSD$
*
*/
/*
* SPANS Signalling Manager
* ---------------------------
*
* Protocol control blocks
*
*/
#ifndef _SPANS_SPANS_VAR_H
#define _SPANS_SPANS_VAR_H
#ifdef _KERNEL
#include <vm/uma.h> /* XXX arr: will remove rsn */
/*
* Constants to indicate the state of the signalling interface
*/
#define SPANS_UNI_UP 1
#define SPANS_UNI_DOWN -1
/*
* Structure containing state information for each SPANS protocol
* instance. There will be one instance for each ATM device interface
* using the SPANS signalling manager.
*/
struct spans {
struct siginst sp_inst; /* Header */
struct atm_time sp_time; /* Timer controls */
void (*sp_lower) /* Lower command handler */
(int, void *, int, int);
Atm_connection *sp_conn; /* Signalling connection */
long sp_s_epoch; /* Switch epoch */
long sp_h_epoch; /* Host epoch */
u_int sp_probe_ct; /* Status_req msgs unanswered */
u_int sp_alloc_vci; /* Next VCI to allocate */
u_int sp_alloc_vpi; /* Next VPI to allocate */
u_int sp_min_vci; /* Lowest VCI to allocate */
u_int sp_max_vci; /* Highest VCI to allocate */
struct spanscls *sp_cls; /* CLS instance */
};
#define sp_next sp_inst.si_next
#define sp_pif sp_inst.si_pif
#define sp_addr sp_inst.si_addr
#define sp_subaddr sp_inst.si_subaddr
#define sp_vccq sp_inst.si_vccq
#define sp_state sp_inst.si_state
#define sp_ipserv sp_inst.si_ipserv
#endif /* _KERNEL */
/*
* SPANS Protocol States
*/
#define SPANS_ACTIVE 1 /* Active */
#define SPANS_DETACH 2 /* Detach in progress */
#define SPANS_INIT 3 /* Initializing */
#define SPANS_PROBE 4 /* Exchanging status info */
#define SPANS_PROBE_INTERVAL (ATM_HZ) /* Interval between SPANS_STAT_REQs */
#define SPANS_PROBE_THRESH 10 /* Probe time-out threshold */
#define SPANS_PROBE_ERR_WAIT (3 * ATM_HZ) /* Time to wait if send probe fails */
#ifdef _KERNEL
/*
* SPANS Virtual Channel Connection control block. All information
* regarding the state of a SPANS-controlled VCC will be recorded here.
* There will be one SPANS VCC control block for each SPANS-controlled
* VCC.
*/
struct spans_vccb {
struct vccb vcp_hdr; /* Generic VCCB */
u_short sv_retry; /* Xmit retry count */
spans_atm_conn sv_conn; /* SPANS connection info */
spans_resrc sv_spans_qos; /* QoS for VCC */
spans_aal sv_spans_aal; /* AAL for VCC */
};
#define sv_type vcp_hdr.vc_type
#define sv_proto vcp_hdr.vc_proto
#define sv_sstate vcp_hdr.vc_sstate
#define sv_ustate vcp_hdr.vc_ustate
#define sv_pif vcp_hdr.vc_pif
#define sv_nif vcp_hdr.vc_nif
#define sv_sigelem vcp_hdr.vc_sigelem
#define sv_time vcp_hdr.vc_time
#define sv_vpi vcp_hdr.vc_vpi
#define sv_vci vcp_hdr.vc_vci
#define sv_connvc vcp_hdr.vc_connvc
#define sv_ipdus vcp_hdr.vc_ipdus
#define sv_opdus vcp_hdr.vc_opdus
#define sv_ibytes vcp_hdr.vc_ibytes
#define sv_obytes vcp_hdr.vc_obytes
#define sv_ierrors vcp_hdr.vc_ierrors
#define sv_oerrors vcp_hdr.vc_oerrors
#define sv_tstamp vcp_hdr.vc_tstamp
#define sv_daddr sv_conn.daddr
#define sv_saddr sv_conn.saddr
#define sv_dsap sv_conn.dsap
#define sv_ssap sv_conn.ssap
#define SV_MAX_RETRY 3
#define SV_TIMEOUT (ATM_HZ)
#endif /* _KERNEL */
/*
* SPANS VCC Signalling Protocol States
*/
#define SPANS_VC_NULL 0 /* No state */
#define SPANS_VC_ACTIVE 1 /* Active */
#define SPANS_VC_ACT_DOWN 2 /* Active - Interface down */
#define SPANS_VC_POPEN 3 /* VCC open in progress */
#define SPANS_VC_R_POPEN 4 /* VCC rmt open in progress */
#define SPANS_VC_OPEN 5 /* VCC open */
#define SPANS_VC_CLOSE 6 /* VCC close in progress */
#define SPANS_VC_ABORT 7 /* VCC abort in progress */
#define SPANS_VC_FREE 8 /* Waiting for user to free resources */
#ifdef _KERNEL
/*
* Macro to compare two SPANS addresses.
*
* Returns 0 if the addresses are equal.
*/
#define spans_addr_cmp(a, b) \
(bcmp((caddr_t)a, (caddr_t)b, sizeof(struct spans_addr)))
/*
* Macro to copy a SPANS address from a to b.
*/
#define spans_addr_copy(a, b) \
(bcopy((caddr_t)a, (caddr_t)b, sizeof(struct spans_addr)))
/*
* Timer macros
*/
#define SPANS_TIMER(s, t) atm_timeout(&(s)->sp_time, (t), spans_timer)
#define SPANS_CANCEL(s) atm_untimeout(&(s)->sp_time)
#define SPANS_VC_TIMER(v, t) atm_timeout(&(v)->vc_time, (t), spans_vctimer)
#define SPANS_VC_CANCEL(v) atm_untimeout(&(v)->vc_time)
/*
* Global function declarations
*/
struct ipvcc;
/* spans_arp.c */
int spansarp_svcout(struct ipvcc *, struct in_addr *);
int spansarp_svcin(struct ipvcc *, Atm_addr *, Atm_addr *);
int spansarp_svcactive(struct ipvcc *);
void spansarp_vcclose(struct ipvcc *);
void spansarp_ipact(struct spanscls *);
void spansarp_ipdact(struct spanscls *);
void spansarp_start(void);
void spansarp_stop(void);
void spansarp_input(struct spanscls *, KBuffer *);
int spansarp_ioctl(int, caddr_t, caddr_t);
/* spans_cls.c */
int spanscls_start(void);
void spanscls_stop(void);
int spanscls_attach(struct spans *);
void spanscls_detach(struct spans *);
void spanscls_closevc(struct spanscls *, struct t_atm_cause *);
/* spans_if.c */
int spans_abort(struct vccb *);
int spans_free(struct vccb *);
/* spans_msg.c */
int spans_send_msg(struct spans *, spans_msg *);
int spans_send_open_req(struct spans *, struct spans_vccb *);
int spans_send_open_rsp(struct spans *,
struct spans_vccb *,
spans_result);
int spans_send_close_req(struct spans *,
struct spans_vccb *);
void spans_rcv_msg(struct spans *, KBuffer *);
/* spans_print.c */
void spans_print_msg(spans_msg *);
/* spans_proto.c */
void spans_timer(struct atm_time *);
void spans_vctimer(struct atm_time *);
void spans_upper(int, void *, int, int);
void spans_notify(void *, int, int);
/* spans_subr.c */
int spans_open_vcc(struct spans *, Atm_connvc *);
int spans_close_vcc(struct spans *, struct spans_vccb *, int);
int spans_clear_vcc(struct spans *, struct spans_vccb *);
void spans_switch_reset(struct spans *, int);
/* spans_util.c */
int spans_get_spans_sap(Sap_t, spans_sap *);
int spans_get_local_sap(spans_sap, Sap_t *);
int spans_ephemeral_sap(struct spans *);
int spans_get_spans_aal(Aal_t, spans_aal *);
int spans_get_local_aal(spans_aal, Aal_t *);
int spans_verify_vccb(struct spans *, struct spans_vccb *);
struct spans_vccb *
spans_find_vpvc(struct spans *, int, int, u_char);
struct spans_vccb *
spans_find_conn(struct spans *, struct spans_atm_conn *);
spans_vpvc spans_alloc_vpvc(struct spans *);
char * spans_addr_print(struct spans_addr *);
void spans_dump_buffer(KBuffer *);
/*
* External variables
*/
extern struct spans_addr spans_bcastaddr;
extern uma_zone_t spans_vc_zone;
extern uma_zone_t spans_msg_zone;
extern struct t_atm_cause spans_cause;
#endif /* _KERNEL */
#endif /* _SPANS_SPANS_VAR_H */
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