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