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, 1999 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 * $FreeBSD$ 31 * 32 * last edit-date: [Wed Mar 17 16:16:40 1999] 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 N_CALL_DESC (MAX_CONTROLLERS*2) /* no of call descriptors */ 48 49 extern int nctrl; /* number of controllers detected in system */ 50 51 typedef struct bchan_statistics { 52 int outbytes; 53 int inbytes; 54 } bchan_statistics_t; 55 56 /*---------------------------------------------------------------------------* 57 * table of things the driver needs to know about the b channel 58 * it is connected to for data transfer 59 *---------------------------------------------------------------------------*/ 60 typedef struct i4l_isdn_bchan_linktab { 61 int unit; 62 int channel; 63 void (*bch_config)(int unit, int channel, int bprot, int updown); 64 void (*bch_tx_start)(int unit, int channel); 65 void (*bch_stat)(int unit, int channel, bchan_statistics_t *bsp); 66 struct ifqueue *tx_queue; 67 struct ifqueue *rx_queue; /* data xfer for NON-HDLC traffic */ 68 struct mbuf **rx_mbuf; /* data xfer for HDLC based traffic */ 69 } isdn_link_t; 70 71 /*---------------------------------------------------------------------------* 72 * table of things the b channel handler needs to know about 73 * the driver it is connected to for data transfer 74 *---------------------------------------------------------------------------*/ 75 typedef struct i4l_driver_bchan_linktab { 76 int unit; 77 void (*bch_rx_data_ready)(int unit); 78 void (*bch_tx_queue_empty)(int unit); 79 void (*bch_activity)(int unit, int rxtx); 80 #define ACT_RX 0 81 #define ACT_TX 1 82 void (*line_connected)(int unit, void *cde); 83 void (*line_disconnected)(int unit, void *cde); 84 void (*dial_response)(int unit, int stat, cause_t cause); 85 void (*updown_ind)(int unit, int updown); 86 } drvr_link_t; 87 88 /* global linktab functions for controller types (aka hardware drivers) */ 89 struct ctrl_type_desc { 90 isdn_link_t* (*get_linktab)(int unit, int channel); 91 void (*set_linktab)(int unit, int channel, drvr_link_t *dlt); 92 }; 93 extern struct ctrl_type_desc ctrl_types[]; 94 95 /* global linktab functions for RBCH userland driver */ 96 97 drvr_link_t *rbch_ret_linktab(int unit); 98 void rbch_set_linktab(int unit, isdn_link_t *ilt); 99 100 /* global linktab functions for IPR network driver */ 101 102 drvr_link_t *ipr_ret_linktab(int unit); 103 void ipr_set_linktab(int unit, isdn_link_t *ilt); 104 105 /* global linktab functions for TEL userland driver */ 106 107 drvr_link_t *tel_ret_linktab(int unit); 108 void tel_set_linktab(int unit, isdn_link_t *ilt); 109 110 /* global linktab functions for ISPPP userland driver */ 111 112 drvr_link_t *i4bisppp_ret_linktab(int unit); 113 void i4bisppp_set_linktab(int unit, isdn_link_t *ilt); 114 115 /*---------------------------------------------------------------------------* 116 * this structure describes one call/connection on one B-channel 117 * and all its parameters 118 *---------------------------------------------------------------------------*/ 119 typedef struct 120 { 121 u_int cdid; /* call descriptor id */ 122 int controller; /* isdn controller number */ 123 int cr; /* call reference value */ 124 125 int crflag; /* call reference flag */ 126 #define CRF_ORIG 0 /* originating side */ 127 #define CRF_DEST 1 /* destinating side */ 128 129 int channelid; /* channel id value */ 130 int channelexcl; /* channel exclusive */ 131 132 int bprot; /* B channel protocol BPROT_XXX */ 133 134 int driver; /* driver to use for B channel */ 135 int driver_unit; /* unit for above driver number */ 136 137 cause_t cause_in; /* cause value from NT */ 138 cause_t cause_out; /* cause value to NT */ 139 140 int call_state; /* from incoming SETUP */ 141 142 u_char dst_telno[TELNO_MAX]; /* destination number */ 143 u_char src_telno[TELNO_MAX]; /* source number */ 144 int scr_ind; /* screening ind for incoming call */ 145 146 int Q931state; /* Q.931 state for call */ 147 int event; /* event to be processed */ 148 149 int response; /* setup response type */ 150 151 int T303; /* SETUP sent response timeout */ 152 int T303_first_to; /* first timeout flag */ 153 154 int T305; /* DISC without PROG IND */ 155 156 int T308; /* RELEASE sent response timeout*/ 157 int T308_first_to; /* first timeout flag */ 158 159 int T309; /* data link disconnect timeout */ 160 161 int T310; /* CALL PROC received */ 162 163 int T313; /* CONNECT sent timeout */ 164 165 int T400; /* L4 timeout */ 166 167 isdn_link_t *ilt; /* isdn B channel linktab */ 168 drvr_link_t *dlt; /* driver linktab */ 169 170 int dir; /* outgoing or incoming call */ 171 #define DIR_OUTGOING 0 172 #define DIR_INCOMING 1 173 174 int timeout_active; /* idle timeout() active flag */ 175 176 #if (defined(__FreeBSD_version) && __FreeBSD_version >= 300001) || \ 177 (!defined(__FreeBSD_version) && defined(__FreeBSD__) && __FreeBSD__ >= 3) 178 struct callout_handle idle_timeout_handle; 179 struct callout_handle T303_callout; 180 struct callout_handle T305_callout; 181 struct callout_handle T308_callout; 182 struct callout_handle T309_callout; 183 struct callout_handle T310_callout; 184 struct callout_handle T313_callout; 185 struct callout_handle T400_callout; 186 int callouts_inited; /* must init before use */ 187 #endif 188 189 int idletime_state; /* wait for idle_time begin */ 190 #define IST_IDLE 0 /* shorthold mode disabled */ 191 #define IST_NONCHK 1 /* in non-checked window */ 192 #define IST_CHECK 2 /* in idle check window */ 193 #define IST_SAFE 3 /* in safety zone */ 194 195 time_t idletimechk_start; /* check idletime window start */ 196 time_t connect_time; /* time connect was made */ 197 time_t last_active_time; /* last time with activity */ 198 199 /* for incoming connections: */ 200 time_t max_idle_time; /* max time without activity */ 201 202 /* for outgoing connections: */ 203 msg_shorthold_t shorthold_data; /* shorthold data to use */ 204 205 int aocd_flag; /* AOCD used for unitlength calc*/ 206 time_t last_aocd_time; /* last time AOCD received */ 207 int units; /* number of AOCD charging units*/ 208 int units_type; /* units type: AOCD, AOCE */ 209 int cunits; /* calculated units */ 210 211 int isdntxdelay; /* isdn tx delay after connect */ 212 213 u_char display[DISPLAY_MAX]; /* display information element */ 214 char datetime[DATETIME_MAX]; /* date/time information element*/ 215 } call_desc_t; 216 217 extern call_desc_t call_desc[N_CALL_DESC]; 218 219 /* forward decl. */ 220 struct isdn_diagnostic_request; 221 struct isdn_dr_prot; 222 223 /*---------------------------------------------------------------------------* 224 * this structure "describes" one controller 225 *---------------------------------------------------------------------------*/ 226 typedef struct 227 { 228 int unit; /* unit number of this contr. */ 229 int ctrl_type; /* controller type (CTRL_XXX) */ 230 int card_type; /* card manufacturer (CARD_XXX) */ 231 232 int dl_est; /* layer 2 established */ 233 #define DL_DOWN 0 234 #define DL_UP 1 235 236 int bch_state[2]; /* states of the b channels */ 237 #define BCH_ST_FREE 0 /* free to be used, idle */ 238 #define BCH_ST_RSVD 1 /* reserved, may become free or used */ 239 #define BCH_ST_USED 2 /* in use for data transfer */ 240 241 int tei; /* current tei or -1 if invalid */ 242 243 /* pointers to functions to be called from L4 */ 244 245 void (*N_CONNECT_REQUEST) (unsigned int); 246 void (*N_CONNECT_RESPONSE) (unsigned int, int, int); 247 void (*N_DISCONNECT_REQUEST) (unsigned int, int); 248 void (*N_ALERT_REQUEST) (unsigned int); 249 void (*N_SET_TRACE) (int unit, int val); 250 int (*N_GET_TRACE) (int unit); 251 int (*N_DOWNLOAD) (int unit, int numprotos, struct isdn_dr_prot *protocols); 252 int (*N_DIAGNOSTICS) (int unit, struct isdn_diagnostic_request*); 253 void (*N_MGMT_COMMAND) (int unit, int cmd, int parm); 254 } ctrl_desc_t; 255 256 extern ctrl_desc_t ctrl_desc[MAX_CONTROLLERS]; 257 258 #endif /* _I4B_Q931_H_ */
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