Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i4b/include/i4b_l3l4.h
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1 /* 2 * Copyright (c) 1997, 2001 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 * $Id: i4b_l3l4.h,v 1.32 2000/08/24 11:48:57 hm Exp $ 31 * 32 * $FreeBSD$ 33 * 34 * last edit-date: [Fri Jun 2 14:29:35 2000] 35 * 36 *---------------------------------------------------------------------------*/ 37 38 #ifndef _I4B_L3L4_H_ 39 #define _I4B_L3L4_H_ 40 41 #define T303VAL (hz*4) /* 4 seconds timeout */ 42 #define T305VAL (hz*30) /* 30 seconds timeout */ 43 #define T308VAL (hz*4) /* 4 seconds timeout */ 44 #define T309VAL (hz*90) /* 90 seconds timeout */ 45 #define T310VAL (hz*60) /* 30-120 seconds timeout */ 46 #define T313VAL (hz*4) /* 4 seconds timeout */ 47 #define T400DEF (hz*10) /* 10 seconds timeout */ 48 49 #define MAX_BCHAN 30 50 #define N_CALL_DESC (MAX_CONTROLLERS*MAX_BCHAN) /* no of call descriptors */ 51 52 extern int nctrl; /* number of controllers detected in system */ 53 54 typedef struct bchan_statistics { 55 int outbytes; 56 int inbytes; 57 } bchan_statistics_t; 58 59 /*---------------------------------------------------------------------------* 60 * table of things the driver needs to know about the b channel 61 * it is connected to for data transfer 62 *---------------------------------------------------------------------------*/ 63 typedef struct i4l_isdn_bchan_linktab { 64 int unit; 65 int channel; 66 void (*bch_config)(int unit, int channel, int bprot, int updown); 67 void (*bch_tx_start)(int unit, int channel); 68 void (*bch_stat)(int unit, int channel, bchan_statistics_t *bsp); 69 struct ifqueue *tx_queue; 70 struct ifqueue *rx_queue; /* data xfer for NON-HDLC traffic */ 71 struct mbuf **rx_mbuf; /* data xfer for HDLC based traffic */ 72 } isdn_link_t; 73 74 /*---------------------------------------------------------------------------* 75 * table of things the b channel handler needs to know about 76 * the driver it is connected to for data transfer 77 *---------------------------------------------------------------------------*/ 78 typedef struct i4l_driver_bchan_linktab { 79 int unit; 80 void (*bch_rx_data_ready)(int unit); 81 void (*bch_tx_queue_empty)(int unit); 82 void (*bch_activity)(int unit, int rxtx); 83 #define ACT_RX 0 84 #define ACT_TX 1 85 void (*line_connected)(int unit, void *cde); 86 void (*line_disconnected)(int unit, void *cde); 87 void (*dial_response)(int unit, int stat, cause_t cause); 88 void (*updown_ind)(int unit, int updown); 89 } drvr_link_t; 90 91 /* global linktab functions for controller types (aka hardware drivers) */ 92 struct ctrl_type_desc { 93 isdn_link_t* (*get_linktab)(int unit, int channel); 94 void (*set_linktab)(int unit, int channel, drvr_link_t *dlt); 95 }; 96 extern struct ctrl_type_desc ctrl_types[]; 97 98 /* global linktab functions for RBCH userland driver */ 99 100 drvr_link_t *rbch_ret_linktab(int unit); 101 void rbch_set_linktab(int unit, isdn_link_t *ilt); 102 103 /* global linktab functions for IPR network driver */ 104 105 drvr_link_t *ipr_ret_linktab(int unit); 106 void ipr_set_linktab(int unit, isdn_link_t *ilt); 107 108 /* global linktab functions for TEL userland driver */ 109 110 drvr_link_t *tel_ret_linktab(int unit); 111 void tel_set_linktab(int unit, isdn_link_t *ilt); 112 113 /* global linktab functions for ISPPP userland driver */ 114 115 drvr_link_t *i4bisppp_ret_linktab(int unit); 116 void i4bisppp_set_linktab(int unit, isdn_link_t *ilt); 117 118 #ifdef __bsdi__ 119 /* global linktab functions for IBC userland driver */ 120 121 drvr_link_t *ibc_ret_linktab(int unit); 122 void ibc_set_linktab(int unit, isdn_link_t *ilt); 123 #endif 124 125 /* global linktab functions for ING network driver */ 126 127 drvr_link_t *ing_ret_linktab(int unit); 128 void ing_set_linktab(int unit, isdn_link_t *ilt); 129 130 131 /*---------------------------------------------------------------------------* 132 * this structure describes one call/connection on one B-channel 133 * and all its parameters 134 *---------------------------------------------------------------------------*/ 135 typedef struct 136 { 137 u_int cdid; /* call descriptor id */ 138 int controller; /* isdn controller number */ 139 int cr; /* call reference value */ 140 141 int crflag; /* call reference flag */ 142 #define CRF_ORIG 0 /* originating side */ 143 #define CRF_DEST 1 /* destinating side */ 144 145 int channelid; /* channel id value */ 146 int channelexcl; /* channel exclusive */ 147 148 int bprot; /* B channel protocol BPROT_XXX */ 149 150 int driver; /* driver to use for B channel */ 151 int driver_unit; /* unit for above driver number */ 152 153 cause_t cause_in; /* cause value from NT */ 154 cause_t cause_out; /* cause value to NT */ 155 156 int call_state; /* from incoming SETUP */ 157 158 u_char dst_telno[TELNO_MAX]; /* destination number */ 159 u_char src_telno[TELNO_MAX]; /* source number */ 160 161 int scr_ind; /* screening ind for incoming call */ 162 int prs_ind; /* presentation ind for incoming call */ 163 164 int Q931state; /* Q.931 state for call */ 165 int event; /* event to be processed */ 166 167 int response; /* setup response type */ 168 169 int T303; /* SETUP sent response timeout */ 170 int T303_first_to; /* first timeout flag */ 171 172 int T305; /* DISC without PROG IND */ 173 174 int T308; /* RELEASE sent response timeout*/ 175 int T308_first_to; /* first timeout flag */ 176 177 int T309; /* data link disconnect timeout */ 178 179 int T310; /* CALL PROC received */ 180 181 int T313; /* CONNECT sent timeout */ 182 183 int T400; /* L4 timeout */ 184 185 isdn_link_t *ilt; /* isdn B channel linktab */ 186 drvr_link_t *dlt; /* driver linktab */ 187 188 int dir; /* outgoing or incoming call */ 189 #define DIR_OUTGOING 0 190 #define DIR_INCOMING 1 191 192 int timeout_active; /* idle timeout() active flag */ 193 194 #if (defined(__FreeBSD_version) && __FreeBSD_version >= 300001) || \ 195 (!defined(__FreeBSD_version) && defined(__FreeBSD__) && __FreeBSD__ >= 3) 196 struct callout_handle idle_timeout_handle; 197 struct callout_handle T303_callout; 198 struct callout_handle T305_callout; 199 struct callout_handle T308_callout; 200 struct callout_handle T309_callout; 201 struct callout_handle T310_callout; 202 struct callout_handle T313_callout; 203 struct callout_handle T400_callout; 204 int callouts_inited; /* must init before use */ 205 #endif 206 #if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000 207 struct callout idle_timeout_handle; 208 struct callout T303_callout; 209 struct callout T305_callout; 210 struct callout T308_callout; 211 struct callout T309_callout; 212 struct callout T310_callout; 213 struct callout T313_callout; 214 struct callout T400_callout; 215 int callouts_inited; /* must init before use */ 216 #endif 217 218 int idletime_state; /* wait for idle_time begin */ 219 #define IST_IDLE 0 /* shorthold mode disabled */ 220 #define IST_NONCHK 1 /* in non-checked window */ 221 #define IST_CHECK 2 /* in idle check window */ 222 #define IST_SAFE 3 /* in safety zone */ 223 224 time_t idletimechk_start; /* check idletime window start */ 225 time_t connect_time; /* time connect was made */ 226 time_t last_active_time; /* last time with activity */ 227 228 /* for incoming connections: */ 229 time_t max_idle_time; /* max time without activity */ 230 231 /* for outgoing connections: */ 232 msg_shorthold_t shorthold_data; /* shorthold data to use */ 233 234 int aocd_flag; /* AOCD used for unitlength calc*/ 235 time_t last_aocd_time; /* last time AOCD received */ 236 int units; /* number of AOCD charging units*/ 237 int units_type; /* units type: AOCD, AOCE */ 238 int cunits; /* calculated units */ 239 240 int isdntxdelay; /* isdn tx delay after connect */ 241 242 u_char display[DISPLAY_MAX]; /* display information element */ 243 char datetime[DATETIME_MAX]; /* date/time information element*/ 244 u_char keypad[KEYPAD_MAX]; /* keypad facility */ 245 } call_desc_t; 246 247 extern call_desc_t call_desc[N_CALL_DESC]; 248 249 /* forward decl. */ 250 struct isdn_diagnostic_request; 251 struct isdn_dr_prot; 252 253 /*---------------------------------------------------------------------------* 254 * this structure "describes" one controller 255 *---------------------------------------------------------------------------*/ 256 typedef struct 257 { 258 int unit; /* unit number of this contr. */ 259 int ctrl_type; /* controller type (CTRL_XXX) */ 260 int card_type; /* card manufacturer (CARD_XXX) */ 261 262 int protocol; /* D-channel protocol type */ 263 264 int dl_est; /* layer 2 established */ 265 #define DL_DOWN 0 266 #define DL_UP 1 267 268 int nbch; /* number of b channels */ 269 int bch_state[MAX_BCHAN]; /* states of the b channels */ 270 #define BCH_ST_FREE 0 /* free to be used, idle */ 271 #define BCH_ST_RSVD 1 /* reserved, may become free or used */ 272 #define BCH_ST_USED 2 /* in use for data transfer */ 273 274 int tei; /* current tei or -1 if invalid */ 275 276 /* pointers to functions to be called from L4 */ 277 278 void (*N_CONNECT_REQUEST) (unsigned int); 279 void (*N_CONNECT_RESPONSE) (unsigned int, int, int); 280 void (*N_DISCONNECT_REQUEST) (unsigned int, int); 281 void (*N_ALERT_REQUEST) (unsigned int); 282 int (*N_DOWNLOAD) (int unit, int numprotos, struct isdn_dr_prot *protocols); 283 int (*N_DIAGNOSTICS) (int unit, struct isdn_diagnostic_request*); 284 void (*N_MGMT_COMMAND) (int unit, int cmd, void *); 285 } ctrl_desc_t; 286 287 extern ctrl_desc_t ctrl_desc[MAX_CONTROLLERS]; 288 289 #endif /* _I4B_Q931_H_ */
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