299 lines
10 KiB
C
299 lines
10 KiB
C
/* $NetBSD: i4b_l3l4.h,v 1.17 2005/12/10 23:51:50 elad Exp $ */
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/*
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* Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_l3l4.h - layer 3 / layer 4 interface
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* ------------------------------------------
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*
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* $Id: i4b_l3l4.h,v 1.17 2005/12/10 23:51:50 elad Exp $
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*
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* $FreeBSD$
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*
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* last edit-date: [Fri Jun 2 14:29:35 2000]
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*
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*---------------------------------------------------------------------------*/
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#ifndef _NETISDN_I4B_L3L4_H_
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#define _NETISDN_I4B_L3L4_H_
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#define T303VAL (hz*4) /* 4 seconds timeout */
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#define T305VAL (hz*30) /* 30 seconds timeout */
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#define T308VAL (hz*4) /* 4 seconds timeout */
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#define T309VAL (hz*90) /* 90 seconds timeout */
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#define T310VAL (hz*60) /* 30-120 seconds timeout */
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#define T313VAL (hz*4) /* 4 seconds timeout */
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#define T400DEF (hz*10) /* 10 seconds timeout */
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#define MAX_BCHAN 2
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#define N_CALL_DESC (20*(MAX_BCHAN)) /* XXX: make resizable */
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typedef struct bchan_statistics {
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int outbytes;
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int inbytes;
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} bchan_statistics_t;
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/*---------------------------------------------------------------------------*
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* table of things the driver needs to know about the b channel
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* it is connected to for data transfer
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*---------------------------------------------------------------------------*/
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typedef struct i4b_isdn_bchan_linktab {
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void* l1token;
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int channel;
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const struct isdn_l4_bchannel_functions *bchannel_driver;
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struct ifqueue *tx_queue;
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struct ifqueue *rx_queue; /* data xfer for NON-HDLC traffic */
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struct mbuf **rx_mbuf; /* data xfer for HDLC based traffic */
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} isdn_link_t;
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struct isdn_l4_driver_functions;
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struct isdn_l3_driver;
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/*---------------------------------------------------------------------------*
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* this structure describes one call/connection on one B-channel
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* and all its parameters
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*---------------------------------------------------------------------------*/
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typedef struct call_desc
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{
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u_int cdid; /* call descriptor id */
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int isdnif; /* isdn interface number */
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struct isdn_l3_driver *l3drv;
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int cr; /* call reference value */
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int crflag; /* call reference flag */
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#define CRF_ORIG 0 /* originating side */
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#define CRF_DEST 1 /* destinating side */
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int channelid; /* channel id value */
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int channelexcl; /* channel exclusive */
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int bprot; /* B channel protocol BPROT_XXX */
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int bchan_driver_index; /* driver to use for B channel */
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int bchan_driver_unit; /* unit for above driver number */
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cause_t cause_in; /* cause value from NT */
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cause_t cause_out; /* cause value to NT */
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int call_state; /* from incoming SETUP */
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u_char dst_telno[TELNO_MAX]; /* destination number */
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u_char src_telno[TELNO_MAX]; /* source number */
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u_char src_subaddr[SUBADDR_MAX];
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u_char dest_subaddr[SUBADDR_MAX];
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int scr_ind; /* screening ind for incoming call */
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int prs_ind; /* presentation ind for incoming call */
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int type_plan; /* type and plan for incoming number */
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int Q931state; /* Q.931 state for call */
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int event; /* event to be processed */
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int response; /* setup response type */
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int T303; /* SETUP sent response timeout */
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int T303_first_to; /* first timeout flag */
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int T305; /* DISC without PROG IND */
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int T308; /* RELEASE sent response timeout*/
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int T308_first_to; /* first timeout flag */
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int T309; /* data link disconnect timeout */
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int T310; /* CALL PROC received */
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int T313; /* CONNECT sent timeout */
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int T400; /* L4 timeout */
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isdn_link_t *ilt; /* isdn B channel driver/state */
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const struct isdn_l4_driver_functions *l4_driver; /* layer 4 driver */
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void *l4_driver_softc; /* layer 4 driver instance */
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int dir; /* outgoing or incoming call */
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#define DIR_OUTGOING 0
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#define DIR_INCOMING 1
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int timeout_active; /* idle timeout() active flag */
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struct callout idle_timeout_handle;
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struct callout T303_callout;
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struct callout T305_callout;
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struct callout T308_callout;
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struct callout T309_callout;
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struct callout T310_callout;
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struct callout T313_callout;
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struct callout T400_callout;
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int callouts_inited; /* must init before use */
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int idletime_state; /* wait for idle_time begin */
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#define IST_IDLE 0 /* shorthold mode disabled */
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#define IST_NONCHK 1 /* in non-checked window */
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#define IST_CHECK 2 /* in idle check window */
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#define IST_SAFE 3 /* in safety zone */
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time_t idletimechk_start; /* check idletime window start */
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time_t connect_time; /* time connect was made */
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time_t last_active_time; /* last time with activity */
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/* for incoming connections: */
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time_t max_idle_time; /* max time without activity */
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/* for outgoing connections: */
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msg_shorthold_t shorthold_data; /* shorthold data to use */
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int aocd_flag; /* AOCD used for unitlength calc*/
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time_t last_aocd_time; /* last time AOCD received */
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int units; /* number of AOCD charging units*/
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int units_type; /* units type: AOCD, AOCE */
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int cunits; /* calculated units */
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int isdntxdelay; /* isdn tx delay after connect */
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u_char display[DISPLAY_MAX]; /* display information element */
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char datetime[DATETIME_MAX]; /* date/time information element*/
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} call_desc_t;
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extern call_desc_t call_desc[];
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extern int num_call_desc;
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/*
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* Set of functions layer 4 drivers calls to manipulate the B channel
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* they are using.
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*/
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struct isdn_l4_bchannel_functions {
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void (*bch_config)(void*, int channel, int bprot, int updown);
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void (*bch_tx_start)(void*, int channel);
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void (*bch_stat)(void*, int channel, bchan_statistics_t *bsp);
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};
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/*
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* Functions a layer 4 application driver exports
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*/
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struct isdn_l4_driver_functions {
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/*
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* Functions for use by the B channel driver
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*/
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void (*bch_rx_data_ready)(void *softc);
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void (*bch_tx_queue_empty)(void *softc);
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void (*bch_activity)(void *softc, int rxtx);
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#define ACT_RX 0
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#define ACT_TX 1
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void (*line_connected)(void *softc, void *cde);
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void (*line_disconnected)(void *softc, void *cde);
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void (*dial_response)(void *softc, int stat, cause_t cause);
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void (*updown_ind)(void *softc, int updown);
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/*
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* Functions used by the ISDN management system
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*/
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void* (*get_softc)(int unit);
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void (*set_linktab)(void *softc, isdn_link_t *ilt);
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/*
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* Optional accounting function
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*/
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time_t (*get_idletime)(void* softc);
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};
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/* global registry of layer 4 drivers */
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int isdn_l4_driver_attach(const char *name, int units, const struct isdn_l4_driver_functions *driver);
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int isdn_l4_driver_detatch(const char *name);
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int isdn_l4_find_driverid(const char *name);
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const struct isdn_l4_driver_functions *isdn_l4_find_driver(const char *name, int unit);
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const struct isdn_l4_driver_functions *isdn_l4_get_driver(int driver_id, int unit);
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/* forward decl. */
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struct isdn_diagnostic_request;
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struct isdn_dr_prot;
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/*
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* functions exported by a layer 3 driver to layer 4
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*/
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struct isdn_l3_driver_functions {
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isdn_link_t* (*get_linktab)(void*, int channel);
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void (*set_l4_driver)(void*, int channel, const struct isdn_l4_driver_functions *l4_driver, void *l4_driver_softc);
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void (*N_CONNECT_REQUEST) (struct call_desc *cd);
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void (*N_CONNECT_RESPONSE) (struct call_desc *cd, int, int);
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void (*N_DISCONNECT_REQUEST) (struct call_desc *cd, int);
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void (*N_ALERT_REQUEST) (struct call_desc *cd);
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int (*N_DOWNLOAD) (void*, int numprotos, struct isdn_dr_prot *protocols);
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int (*N_DIAGNOSTICS) (void*, struct isdn_diagnostic_request*);
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void (*N_MGMT_COMMAND) (struct isdn_l3_driver *, int cmd, void *);
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};
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/*---------------------------------------------------------------------------*
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* This structure "describes" one ISDN interface (typically identical
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* to one controller, but when one controller drives multiple ISDN's,
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* this is just one of those ISDN's).
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*
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* An ISDN can be either a Basic Rate Interface (BRI, 2 B channels)
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* or a Primary Rate Interface (PRI, 30 B channels).
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*---------------------------------------------------------------------------*/
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struct isdn_l3_driver {
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SLIST_ENTRY(isdn_l3_driver) l3drvq;
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void* l1_token; /* softc of hardware driver, actually
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* this is the l2_softc (!!) for
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* passive cards, and something else
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* for active cards (maybe actually
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* the softc there) */
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int isdnif; /* ISDN id assigned to this */
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char *devname; /* pointer to autoconf identifier */
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/* e.g. "isic0" or "daic0 port 2" */
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char *card_name; /* type of card */
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int protocol; /* D-channel protocol type */
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int dl_est; /* layer 2 established */
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#define DL_DOWN 0
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#define DL_UP 1
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int nbch; /* number of B-channels */
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int *bch_state; /* states of the nbch b channels */
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#define BCH_ST_FREE 0 /* free to be used, idle */
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#define BCH_ST_RSVD 1 /* reserved, may become free or used */
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#define BCH_ST_USED 2 /* in use for data transfer */
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int tei; /* current tei or -1 if invalid */
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/* pointers to functions to be called from L4 */
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const struct isdn_l3_driver_functions * l3driver;
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};
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#define NBCH_BRI 2
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#define NBCH_PRI 30
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void i4b_l4_contr_ev_ind(int controller, int attach);
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struct isdn_l3_driver * isdn_attach_isdnif(const char *devname,
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const char *cardname, void *l1_token,
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const struct isdn_l3_driver_functions * l3driver, int nbch);
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int isdn_detach_isdnif(struct isdn_l3_driver *);
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void isdn_isdnif_ready(int isdnif);
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struct isdn_l3_driver *isdn_find_l3_by_isdnif(int isdnif);
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int isdn_count_isdnif(int *max_isdnif);
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#endif /* !_NETISDN_I4B_Q931_H_ */
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