/* * * =================================== * 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 /* 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 */