3 * ===================================
4 * HARP | Host ATM Research Platform
5 * ===================================
8 * This Host ATM Research Platform ("HARP") file (the "Software") is
9 * made available by Network Computing Services, Inc. ("NetworkCS")
10 * "AS IS". NetworkCS does not provide maintenance, improvements or
11 * support of any kind.
13 * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
14 * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
15 * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
16 * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
17 * In no event shall NetworkCS be responsible for any damages, including
18 * but not limited to consequential damages, arising from or relating to
19 * any use of the Software or related support.
21 * Copyright 1994-1998 Network Computing Services, Inc.
23 * Copies of this Software may be made, however, the above copyright
24 * notice must be reproduced on all copies.
31 * SPANS Signalling Manager
32 * ---------------------------
34 * Protocol control blocks
38 #ifndef _SPANS_SPANS_VAR_H
39 #define _SPANS_SPANS_VAR_H
43 #include <vm/uma.h> /* XXX arr: will remove rsn */
46 * Constants to indicate the state of the signalling interface
48 #define SPANS_UNI_UP 1
49 #define SPANS_UNI_DOWN -1
53 * Structure containing state information for each SPANS protocol
54 * instance. There will be one instance for each ATM device interface
55 * using the SPANS signalling manager.
58 struct siginst sp_inst; /* Header */
59 struct atm_time sp_time; /* Timer controls */
60 void (*sp_lower) /* Lower command handler */
61 (int, void *, int, int);
62 Atm_connection *sp_conn; /* Signalling connection */
63 long sp_s_epoch; /* Switch epoch */
64 long sp_h_epoch; /* Host epoch */
65 u_int sp_probe_ct; /* Status_req msgs unanswered */
66 u_int sp_alloc_vci; /* Next VCI to allocate */
67 u_int sp_alloc_vpi; /* Next VPI to allocate */
68 u_int sp_min_vci; /* Lowest VCI to allocate */
69 u_int sp_max_vci; /* Highest VCI to allocate */
70 struct spanscls *sp_cls; /* CLS instance */
73 #define sp_next sp_inst.si_next
74 #define sp_pif sp_inst.si_pif
75 #define sp_addr sp_inst.si_addr
76 #define sp_subaddr sp_inst.si_subaddr
77 #define sp_vccq sp_inst.si_vccq
78 #define sp_state sp_inst.si_state
79 #define sp_ipserv sp_inst.si_ipserv
83 * SPANS Protocol States
85 #define SPANS_ACTIVE 1 /* Active */
86 #define SPANS_DETACH 2 /* Detach in progress */
87 #define SPANS_INIT 3 /* Initializing */
88 #define SPANS_PROBE 4 /* Exchanging status info */
90 #define SPANS_PROBE_INTERVAL (ATM_HZ) /* Interval between SPANS_STAT_REQs */
91 #define SPANS_PROBE_THRESH 10 /* Probe time-out threshold */
92 #define SPANS_PROBE_ERR_WAIT (3 * ATM_HZ) /* Time to wait if send probe fails */
97 * SPANS Virtual Channel Connection control block. All information
98 * regarding the state of a SPANS-controlled VCC will be recorded here.
99 * There will be one SPANS VCC control block for each SPANS-controlled
103 struct vccb vcp_hdr; /* Generic VCCB */
104 u_short sv_retry; /* Xmit retry count */
105 spans_atm_conn sv_conn; /* SPANS connection info */
106 spans_resrc sv_spans_qos; /* QoS for VCC */
107 spans_aal sv_spans_aal; /* AAL for VCC */
110 #define sv_type vcp_hdr.vc_type
111 #define sv_proto vcp_hdr.vc_proto
112 #define sv_sstate vcp_hdr.vc_sstate
113 #define sv_ustate vcp_hdr.vc_ustate
114 #define sv_pif vcp_hdr.vc_pif
115 #define sv_nif vcp_hdr.vc_nif
116 #define sv_sigelem vcp_hdr.vc_sigelem
117 #define sv_time vcp_hdr.vc_time
118 #define sv_vpi vcp_hdr.vc_vpi
119 #define sv_vci vcp_hdr.vc_vci
120 #define sv_connvc vcp_hdr.vc_connvc
121 #define sv_ipdus vcp_hdr.vc_ipdus
122 #define sv_opdus vcp_hdr.vc_opdus
123 #define sv_ibytes vcp_hdr.vc_ibytes
124 #define sv_obytes vcp_hdr.vc_obytes
125 #define sv_ierrors vcp_hdr.vc_ierrors
126 #define sv_oerrors vcp_hdr.vc_oerrors
127 #define sv_tstamp vcp_hdr.vc_tstamp
128 #define sv_daddr sv_conn.daddr
129 #define sv_saddr sv_conn.saddr
130 #define sv_dsap sv_conn.dsap
131 #define sv_ssap sv_conn.ssap
133 #define SV_MAX_RETRY 3
134 #define SV_TIMEOUT (ATM_HZ)
140 * SPANS VCC Signalling Protocol States
142 #define SPANS_VC_NULL 0 /* No state */
143 #define SPANS_VC_ACTIVE 1 /* Active */
144 #define SPANS_VC_ACT_DOWN 2 /* Active - Interface down */
145 #define SPANS_VC_POPEN 3 /* VCC open in progress */
146 #define SPANS_VC_R_POPEN 4 /* VCC rmt open in progress */
147 #define SPANS_VC_OPEN 5 /* VCC open */
148 #define SPANS_VC_CLOSE 6 /* VCC close in progress */
149 #define SPANS_VC_ABORT 7 /* VCC abort in progress */
150 #define SPANS_VC_FREE 8 /* Waiting for user to free resources */
155 * Macro to compare two SPANS addresses.
157 * Returns 0 if the addresses are equal.
159 #define spans_addr_cmp(a, b) \
160 (bcmp((caddr_t)a, (caddr_t)b, sizeof(struct spans_addr)))
163 * Macro to copy a SPANS address from a to b.
165 #define spans_addr_copy(a, b) \
166 (bcopy((caddr_t)a, (caddr_t)b, sizeof(struct spans_addr)))
172 #define SPANS_TIMER(s, t) atm_timeout(&(s)->sp_time, (t), spans_timer)
173 #define SPANS_CANCEL(s) atm_untimeout(&(s)->sp_time)
174 #define SPANS_VC_TIMER(v, t) atm_timeout(&(v)->vc_time, (t), spans_vctimer)
175 #define SPANS_VC_CANCEL(v) atm_untimeout(&(v)->vc_time)
179 * Global function declarations
184 int spansarp_svcout(struct ipvcc *, struct in_addr *);
185 int spansarp_svcin(struct ipvcc *, Atm_addr *, Atm_addr *);
186 int spansarp_svcactive(struct ipvcc *);
187 void spansarp_vcclose(struct ipvcc *);
188 void spansarp_ipact(struct spanscls *);
189 void spansarp_ipdact(struct spanscls *);
190 void spansarp_start(void);
191 void spansarp_stop(void);
192 void spansarp_input(struct spanscls *, KBuffer *);
193 int spansarp_ioctl(int, caddr_t, caddr_t);
196 int spanscls_start(void);
197 void spanscls_stop(void);
198 int spanscls_attach(struct spans *);
199 void spanscls_detach(struct spans *);
200 void spanscls_closevc(struct spanscls *, struct t_atm_cause *);
203 int spans_abort(struct vccb *);
204 int spans_free(struct vccb *);
207 int spans_send_msg(struct spans *, spans_msg *);
208 int spans_send_open_req(struct spans *, struct spans_vccb *);
209 int spans_send_open_rsp(struct spans *,
212 int spans_send_close_req(struct spans *,
213 struct spans_vccb *);
214 void spans_rcv_msg(struct spans *, KBuffer *);
217 void spans_print_msg(spans_msg *);
220 void spans_timer(struct atm_time *);
221 void spans_vctimer(struct atm_time *);
222 void spans_upper(int, void *, int, int);
223 void spans_notify(void *, int, int);
226 int spans_open_vcc(struct spans *, Atm_connvc *);
227 int spans_close_vcc(struct spans *, struct spans_vccb *, int);
228 int spans_clear_vcc(struct spans *, struct spans_vccb *);
229 void spans_switch_reset(struct spans *, int);
232 int spans_get_spans_sap(Sap_t, spans_sap *);
233 int spans_get_local_sap(spans_sap, Sap_t *);
234 int spans_ephemeral_sap(struct spans *);
235 int spans_get_spans_aal(Aal_t, spans_aal *);
236 int spans_get_local_aal(spans_aal, Aal_t *);
237 int spans_verify_vccb(struct spans *, struct spans_vccb *);
239 spans_find_vpvc(struct spans *, int, int, u_char);
241 spans_find_conn(struct spans *, struct spans_atm_conn *);
242 spans_vpvc spans_alloc_vpvc(struct spans *);
243 char * spans_addr_print(struct spans_addr *);
244 void spans_dump_buffer(KBuffer *);
250 extern struct spans_addr spans_bcastaddr;
251 extern uma_zone_t spans_vc_zone;
252 extern uma_zone_t spans_msg_zone;
253 extern struct t_atm_cause spans_cause;
256 SYSCTL_DECL(_net_harp_spans);
261 #endif /* _SPANS_SPANS_VAR_H */