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, 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 * 28 * i4b_l3l4.h - layer 3 / layer 4 interface 29 * ------------------------------------------ 30 * 31 * $FreeBSD$ 32 * 33 * last edit-date: [Sun Aug 11 12:52:41 2002] 34 * 35 *---------------------------------------------------------------------------*/ 36 37 #ifndef _I4B_L3L4_H_ 38 #define _I4B_L3L4_H_ 39 40 #define T303VAL (hz*4) /* 4 seconds timeout */ 41 #define T305VAL (hz*30) /* 30 seconds timeout */ 42 #define T308VAL (hz*4) /* 4 seconds timeout */ 43 #define T309VAL (hz*90) /* 90 seconds timeout */ 44 #define T310VAL (hz*60) /* 30-120 seconds timeout */ 45 #define T313VAL (hz*4) /* 4 seconds timeout */ 46 #define T400DEF (hz*10) /* 10 seconds timeout */ 47 48 #define MAX_BCHAN 30 49 #define N_CALL_DESC (MAX_CONTROLLERS*MAX_BCHAN) /* no of call descriptors */ 50 51 extern int nctrl; /* number of controllers detected in system */ 52 53 typedef struct bchan_statistics { 54 int outbytes; 55 int inbytes; 56 } bchan_statistics_t; 57 58 /*---------------------------------------------------------------------------* 59 * table of things the driver needs to know about the b channel 60 * it is connected to for data transfer 61 *---------------------------------------------------------------------------*/ 62 typedef struct i4l_isdn_bchan_linktab { 63 int unit; 64 int channel; 65 void (*bch_config)(int unit, int channel, int bprot, int updown); 66 void (*bch_tx_start)(int unit, int channel); 67 void (*bch_stat)(int unit, int channel, bchan_statistics_t *bsp); 68 struct ifqueue *tx_queue; 69 struct ifqueue *rx_queue; /* data xfer for NON-HDLC traffic */ 70 struct mbuf **rx_mbuf; /* data xfer for HDLC based traffic */ 71 } isdn_link_t; 72 73 /*---------------------------------------------------------------------------* 74 * table of things the b channel handler needs to know about 75 * the driver it is connected to for data transfer 76 *---------------------------------------------------------------------------*/ 77 typedef struct i4l_driver_bchan_linktab { 78 int unit; 79 void (*bch_rx_data_ready)(int unit); 80 void (*bch_tx_queue_empty)(int unit); 81 void (*bch_activity)(int unit, int rxtx); 82 #define ACT_RX 0 83 #define ACT_TX 1 84 void (*line_connected)(int unit, void *cde); 85 void (*line_disconnected)(int unit, void *cde); 86 void (*dial_response)(int unit, int stat, cause_t cause); 87 void (*updown_ind)(int unit, int updown); 88 } drvr_link_t; 89 90 /* global linktab functions for controller types (aka hardware drivers) */ 91 struct ctrl_type_desc { 92 isdn_link_t* (*get_linktab)(int unit, int channel); 93 void (*set_linktab)(int unit, int channel, drvr_link_t *dlt); 94 }; 95 extern struct ctrl_type_desc ctrl_types[]; 96 97 /* global linktab functions for RBCH userland driver */ 98 99 drvr_link_t *rbch_ret_linktab(int unit); 100 void rbch_set_linktab(int unit, isdn_link_t *ilt); 101 102 /* global linktab functions for IPR network driver */ 103 104 drvr_link_t *ipr_ret_linktab(int unit); 105 void ipr_set_linktab(int unit, isdn_link_t *ilt); 106 107 /* global linktab functions for TEL userland driver */ 108 109 drvr_link_t *tel_ret_linktab(int unit); 110 void tel_set_linktab(int unit, isdn_link_t *ilt); 111 112 /* global linktab functions for ISPPP userland driver */ 113 114 drvr_link_t *i4bisppp_ret_linktab(int unit); 115 void i4bisppp_set_linktab(int unit, isdn_link_t *ilt); 116 117 /* global linktab functions for ING network driver */ 118 119 drvr_link_t *ing_ret_linktab(int unit); 120 void ing_set_linktab(int unit, isdn_link_t *ilt); 121 122 123 /*---------------------------------------------------------------------------* 124 * this structure describes one call/connection on one B-channel 125 * and all its parameters 126 *---------------------------------------------------------------------------*/ 127 typedef struct 128 { 129 u_int cdid; /* call descriptor id */ 130 int controller; /* isdn controller number */ 131 int cr; /* call reference value */ 132 133 int crflag; /* call reference flag */ 134 #define CRF_ORIG 0 /* originating side */ 135 #define CRF_DEST 1 /* destinating side */ 136 137 int channelid; /* channel id value */ 138 int channelexcl; /* channel exclusive */ 139 140 int bprot; /* B channel protocol BPROT_XXX */ 141 142 int bcap; /* special bearer capabilities BCAP_XXX */ 143 144 int driver; /* driver to use for B channel */ 145 int driver_unit; /* unit for above driver number */ 146 147 cause_t cause_in; /* cause value from NT */ 148 cause_t cause_out; /* cause value to NT */ 149 150 int call_state; /* from incoming SETUP */ 151 152 u_char dst_telno[TELNO_MAX]; /* destination number */ 153 u_char dst_subaddr[SUBADDR_MAX]; /* destination subaddr */ 154 u_char src_telno[TELNO_MAX]; /* source number */ 155 u_char src_subaddr[SUBADDR_MAX]; /* source subaddr */ 156 157 int dst_ton; /* destination type of number */ 158 int src_ton; /* source type of number */ 159 160 int scr_ind; /* screening ind for incoming call */ 161 int prs_ind; /* presentation ind for incoming call */ 162 163 int Q931state; /* Q.931 state for call */ 164 int event; /* event to be processed */ 165 166 int response; /* setup response type */ 167 168 int T303; /* SETUP sent response timeout */ 169 int T303_first_to; /* first timeout flag */ 170 171 int T305; /* DISC without PROG IND */ 172 173 int T308; /* RELEASE sent response timeout*/ 174 int T308_first_to; /* first timeout flag */ 175 176 int T309; /* data link disconnect timeout */ 177 178 int T310; /* CALL PROC received */ 179 180 int T313; /* CONNECT sent timeout */ 181 182 int T400; /* L4 timeout */ 183 184 isdn_link_t *ilt; /* isdn B channel linktab */ 185 drvr_link_t *dlt; /* driver linktab */ 186 187 int dir; /* outgoing or incoming call */ 188 #define DIR_OUTGOING 0 189 #define DIR_INCOMING 1 190 191 int timeout_active; /* idle timeout() active flag */ 192 193 int callouts_inited; /* must init before use */ 194 struct callout_handle idle_timeout_handle; 195 struct callout_handle T303_callout; 196 struct callout_handle T305_callout; 197 struct callout_handle T308_callout; 198 struct callout_handle T309_callout; 199 struct callout_handle T310_callout; 200 struct callout_handle T313_callout; 201 struct callout_handle T400_callout; 202 203 int idletime_state; /* wait for idle_time begin */ 204 #define IST_IDLE 0 /* shorthold mode disabled */ 205 #define IST_NONCHK 1 /* in non-checked window */ 206 #define IST_CHECK 2 /* in idle check window */ 207 #define IST_SAFE 3 /* in safety zone */ 208 209 time_t idletimechk_start; /* check idletime window start */ 210 time_t connect_time; /* time connect was made */ 211 time_t last_active_time; /* last time with activity */ 212 213 /* for incoming connections: */ 214 time_t max_idle_time; /* max time without activity */ 215 216 /* for outgoing connections: */ 217 msg_shorthold_t shorthold_data; /* shorthold data to use */ 218 219 int aocd_flag; /* AOCD used for unitlength calc*/ 220 time_t last_aocd_time; /* last time AOCD received */ 221 int units; /* number of AOCD charging units*/ 222 int units_type; /* units type: AOCD, AOCE */ 223 int cunits; /* calculated units */ 224 225 int isdntxdelay; /* isdn tx delay after connect */ 226 227 u_char display[DISPLAY_MAX]; /* display information element */ 228 char datetime[DATETIME_MAX]; /* date/time information element*/ 229 u_char keypad[KEYPAD_MAX]; /* keypad facility */ 230 } call_desc_t; 231 232 extern call_desc_t call_desc[N_CALL_DESC]; 233 234 /* forward decl. */ 235 struct isdn_diagnostic_request; 236 struct isdn_dr_prot; 237 238 /*---------------------------------------------------------------------------* 239 * this structure "describes" one controller 240 *---------------------------------------------------------------------------*/ 241 typedef struct 242 { 243 int unit; /* unit number of this contr. */ 244 int ctrl_type; /* controller type (CTRL_XXX) */ 245 int card_type; /* card manufacturer (CARD_XXX) */ 246 247 int protocol; /* D-channel protocol type */ 248 249 int dl_est; /* layer 2 established */ 250 #define DL_DOWN 0 251 #define DL_UP 1 252 253 int nbch; /* number of b channels */ 254 int bch_state[MAX_BCHAN]; /* states of the b channels */ 255 #define BCH_ST_FREE 0 /* free to be used, idle */ 256 #define BCH_ST_RSVD 1 /* reserved, may become free or used */ 257 #define BCH_ST_USED 2 /* in use for data transfer */ 258 259 int tei; /* current tei or -1 if invalid */ 260 261 /* pointers to functions to be called from L4 */ 262 263 void (*N_CONNECT_REQUEST) (unsigned int); 264 void (*N_CONNECT_RESPONSE) (unsigned int, int, int); 265 void (*N_DISCONNECT_REQUEST) (unsigned int, int); 266 void (*N_ALERT_REQUEST) (unsigned int); 267 int (*N_DOWNLOAD) (int unit, int numprotos, struct isdn_dr_prot *protocols); 268 int (*N_DIAGNOSTICS) (int unit, struct isdn_diagnostic_request*); 269 void (*N_MGMT_COMMAND) (int unit, int cmd, void *); 270 } ctrl_desc_t; 271 272 extern ctrl_desc_t ctrl_desc[MAX_CONTROLLERS]; 273 274 #endif /* _I4B_Q931_H_ */
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