1 /*
2 * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 *---------------------------------------------------------------------------
26 *
27 * i4b_l3l4.h - layer 3 / layer 4 interface
28 * ------------------------------------------
29 *
30 * $FreeBSD: releng/5.0/sys/i4b/include/i4b_l3l4.h 101716 2002-08-12 07:53:55Z hm $
31 *
32 * last edit-date: [Sun Aug 11 12:52:41 2002]
33 *
34 *---------------------------------------------------------------------------*/
35
36 #ifndef _I4B_L3L4_H_
37 #define _I4B_L3L4_H_
38
39 #define T303VAL (hz*4) /* 4 seconds timeout */
40 #define T305VAL (hz*30) /* 30 seconds timeout */
41 #define T308VAL (hz*4) /* 4 seconds timeout */
42 #define T309VAL (hz*90) /* 90 seconds timeout */
43 #define T310VAL (hz*60) /* 30-120 seconds timeout */
44 #define T313VAL (hz*4) /* 4 seconds timeout */
45 #define T400DEF (hz*10) /* 10 seconds timeout */
46
47 #define MAX_BCHAN 30
48 #define N_CALL_DESC (MAX_CONTROLLERS*MAX_BCHAN) /* no of call descriptors */
49
50 extern int nctrl; /* number of controllers detected in system */
51
52 typedef struct bchan_statistics {
53 int outbytes;
54 int inbytes;
55 } bchan_statistics_t;
56
57 /*---------------------------------------------------------------------------*
58 * table of things the driver needs to know about the b channel
59 * it is connected to for data transfer
60 *---------------------------------------------------------------------------*/
61 typedef struct i4l_isdn_bchan_linktab {
62 int unit;
63 int channel;
64 void (*bch_config)(int unit, int channel, int bprot, int updown);
65 void (*bch_tx_start)(int unit, int channel);
66 void (*bch_stat)(int unit, int channel, bchan_statistics_t *bsp);
67 struct ifqueue *tx_queue;
68 struct ifqueue *rx_queue; /* data xfer for NON-HDLC traffic */
69 struct mbuf **rx_mbuf; /* data xfer for HDLC based traffic */
70 } isdn_link_t;
71
72 /*---------------------------------------------------------------------------*
73 * table of things the b channel handler needs to know about
74 * the driver it is connected to for data transfer
75 *---------------------------------------------------------------------------*/
76 typedef struct i4l_driver_bchan_linktab {
77 int unit;
78 void (*bch_rx_data_ready)(int unit);
79 void (*bch_tx_queue_empty)(int unit);
80 void (*bch_activity)(int unit, int rxtx);
81 #define ACT_RX 0
82 #define ACT_TX 1
83 void (*line_connected)(int unit, void *cde);
84 void (*line_disconnected)(int unit, void *cde);
85 void (*dial_response)(int unit, int stat, cause_t cause);
86 void (*updown_ind)(int unit, int updown);
87 } drvr_link_t;
88
89 /* global linktab functions for controller types (aka hardware drivers) */
90 struct ctrl_type_desc {
91 isdn_link_t* (*get_linktab)(int unit, int channel);
92 void (*set_linktab)(int unit, int channel, drvr_link_t *dlt);
93 };
94 extern struct ctrl_type_desc ctrl_types[];
95
96 /* global linktab functions for RBCH userland driver */
97
98 drvr_link_t *rbch_ret_linktab(int unit);
99 void rbch_set_linktab(int unit, isdn_link_t *ilt);
100
101 /* global linktab functions for IPR network driver */
102
103 drvr_link_t *ipr_ret_linktab(int unit);
104 void ipr_set_linktab(int unit, isdn_link_t *ilt);
105
106 /* global linktab functions for TEL userland driver */
107
108 drvr_link_t *tel_ret_linktab(int unit);
109 void tel_set_linktab(int unit, isdn_link_t *ilt);
110
111 /* global linktab functions for ISPPP userland driver */
112
113 drvr_link_t *i4bisppp_ret_linktab(int unit);
114 void i4bisppp_set_linktab(int unit, isdn_link_t *ilt);
115
116 /* global linktab functions for ING network driver */
117
118 drvr_link_t *ing_ret_linktab(int unit);
119 void ing_set_linktab(int unit, isdn_link_t *ilt);
120
121
122 /*---------------------------------------------------------------------------*
123 * this structure describes one call/connection on one B-channel
124 * and all its parameters
125 *---------------------------------------------------------------------------*/
126 typedef struct
127 {
128 u_int cdid; /* call descriptor id */
129 int controller; /* isdn controller number */
130 int cr; /* call reference value */
131
132 int crflag; /* call reference flag */
133 #define CRF_ORIG 0 /* originating side */
134 #define CRF_DEST 1 /* destinating side */
135
136 int channelid; /* channel id value */
137 int channelexcl; /* channel exclusive */
138
139 int bprot; /* B channel protocol BPROT_XXX */
140
141 int bcap; /* special bearer capabilities BCAP_XXX */
142
143 int driver; /* driver to use for B channel */
144 int driver_unit; /* unit for above driver number */
145
146 cause_t cause_in; /* cause value from NT */
147 cause_t cause_out; /* cause value to NT */
148
149 int call_state; /* from incoming SETUP */
150
151 u_char dst_telno[TELNO_MAX]; /* destination number */
152 u_char dst_subaddr[SUBADDR_MAX]; /* destination subaddr */
153 u_char src_telno[TELNO_MAX]; /* source number */
154 u_char src_subaddr[SUBADDR_MAX]; /* source subaddr */
155
156 int dst_ton; /* destination type of number */
157 int src_ton; /* source type of number */
158
159 int scr_ind; /* screening ind for incoming call */
160 int prs_ind; /* presentation ind for incoming call */
161
162 int Q931state; /* Q.931 state for call */
163 int event; /* event to be processed */
164
165 int response; /* setup response type */
166
167 int T303; /* SETUP sent response timeout */
168 int T303_first_to; /* first timeout flag */
169
170 int T305; /* DISC without PROG IND */
171
172 int T308; /* RELEASE sent response timeout*/
173 int T308_first_to; /* first timeout flag */
174
175 int T309; /* data link disconnect timeout */
176
177 int T310; /* CALL PROC received */
178
179 int T313; /* CONNECT sent timeout */
180
181 int T400; /* L4 timeout */
182
183 isdn_link_t *ilt; /* isdn B channel linktab */
184 drvr_link_t *dlt; /* driver linktab */
185
186 int dir; /* outgoing or incoming call */
187 #define DIR_OUTGOING 0
188 #define DIR_INCOMING 1
189
190 int timeout_active; /* idle timeout() active flag */
191
192 int callouts_inited; /* must init before use */
193 struct callout_handle idle_timeout_handle;
194 struct callout_handle T303_callout;
195 struct callout_handle T305_callout;
196 struct callout_handle T308_callout;
197 struct callout_handle T309_callout;
198 struct callout_handle T310_callout;
199 struct callout_handle T313_callout;
200 struct callout_handle T400_callout;
201
202 int idletime_state; /* wait for idle_time begin */
203 #define IST_IDLE 0 /* shorthold mode disabled */
204 #define IST_NONCHK 1 /* in non-checked window */
205 #define IST_CHECK 2 /* in idle check window */
206 #define IST_SAFE 3 /* in safety zone */
207
208 time_t idletimechk_start; /* check idletime window start */
209 time_t connect_time; /* time connect was made */
210 time_t last_active_time; /* last time with activity */
211
212 /* for incoming connections: */
213 time_t max_idle_time; /* max time without activity */
214
215 /* for outgoing connections: */
216 msg_shorthold_t shorthold_data; /* shorthold data to use */
217
218 int aocd_flag; /* AOCD used for unitlength calc*/
219 time_t last_aocd_time; /* last time AOCD received */
220 int units; /* number of AOCD charging units*/
221 int units_type; /* units type: AOCD, AOCE */
222 int cunits; /* calculated units */
223
224 int isdntxdelay; /* isdn tx delay after connect */
225
226 u_char display[DISPLAY_MAX]; /* display information element */
227 char datetime[DATETIME_MAX]; /* date/time information element*/
228 u_char keypad[KEYPAD_MAX]; /* keypad facility */
229 } call_desc_t;
230
231 extern call_desc_t call_desc[N_CALL_DESC];
232
233 /* forward decl. */
234 struct isdn_diagnostic_request;
235 struct isdn_dr_prot;
236
237 /*---------------------------------------------------------------------------*
238 * this structure "describes" one controller
239 *---------------------------------------------------------------------------*/
240 typedef struct
241 {
242 int unit; /* unit number of this contr. */
243 int ctrl_type; /* controller type (CTRL_XXX) */
244 int card_type; /* card manufacturer (CARD_XXX) */
245
246 int protocol; /* D-channel protocol type */
247
248 int dl_est; /* layer 2 established */
249 #define DL_DOWN 0
250 #define DL_UP 1
251
252 int nbch; /* number of b channels */
253 int bch_state[MAX_BCHAN]; /* states of the b channels */
254 #define BCH_ST_FREE 0 /* free to be used, idle */
255 #define BCH_ST_RSVD 1 /* reserved, may become free or used */
256 #define BCH_ST_USED 2 /* in use for data transfer */
257
258 int tei; /* current tei or -1 if invalid */
259
260 /* pointers to functions to be called from L4 */
261
262 void (*N_CONNECT_REQUEST) (unsigned int);
263 void (*N_CONNECT_RESPONSE) (unsigned int, int, int);
264 void (*N_DISCONNECT_REQUEST) (unsigned int, int);
265 void (*N_ALERT_REQUEST) (unsigned int);
266 int (*N_DOWNLOAD) (int unit, int numprotos, struct isdn_dr_prot *protocols);
267 int (*N_DIAGNOSTICS) (int unit, struct isdn_diagnostic_request*);
268 void (*N_MGMT_COMMAND) (int unit, int cmd, void *);
269 } ctrl_desc_t;
270
271 extern ctrl_desc_t ctrl_desc[MAX_CONTROLLERS];
272
273 #endif /* _I4B_Q931_H_ */
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