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marcus.erl |
/* $Id: isdnloop.c,v 1.11.6.7 2001/11/11 19:54:31 kai Exp $
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*
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* ISDN low-level module implementing a dummy loop driver.
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*
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* Copyright 1997 by Fritz Elfert (fritz@isdn4linux.de)
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include "isdnloop.h"
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static char *revision = "$Revision: 1.11.6.7 $";
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static char *isdnloop_id = "loop0";
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MODULE_DESCRIPTION("ISDN4Linux: Pseudo Driver that simulates an ISDN card");
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MODULE_AUTHOR("Fritz Elfert");
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MODULE_LICENSE("GPL");
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module_param(isdnloop_id, charp, 0);
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MODULE_PARM_DESC(isdnloop_id, "ID-String of first card");
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static int isdnloop_addcard(char *);
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/*
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* Free queue completely.
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*
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* Parameter:
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* card = pointer to card struct
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* channel = channel number
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*/
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static void
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isdnloop_free_queue(isdnloop_card * card, int channel)
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{
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struct sk_buff_head *queue = &card->bqueue[channel];
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skb_queue_purge(queue);
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card->sndcount[channel] = 0;
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}
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/*
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* Send B-Channel data to another virtual card.
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* This routine is called via timer-callback from isdnloop_pollbchan().
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*
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* Parameter:
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* card = pointer to card struct.
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* ch = channel number (0-based)
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*/
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static void
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isdnloop_bchan_send(isdnloop_card * card, int ch)
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{
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isdnloop_card *rcard = card->rcard[ch];
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int rch = card->rch[ch], len, ack;
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struct sk_buff *skb;
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isdn_ctrl cmd;
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while (card->sndcount[ch]) {
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if ((skb = skb_dequeue(&card->bqueue[ch]))) {
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len = skb->len;
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card->sndcount[ch] -= len;
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ack = *(skb->head); /* used as scratch area */
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cmd.driver = card->myid;
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cmd.arg = ch;
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if (rcard){
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rcard->interface.rcvcallb_skb(rcard->myid, rch, skb);
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} else {
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printk(KERN_WARNING "isdnloop: no rcard, skb dropped\n");
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dev_kfree_skb(skb);
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};
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cmd.command = ISDN_STAT_BSENT;
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cmd.parm.length = len;
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card->interface.statcallb(&cmd);
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} else
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card->sndcount[ch] = 0;
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}
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}
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/*
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* Send/Receive Data to/from the B-Channel.
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* This routine is called via timer-callback.
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* It schedules itself while any B-Channel is open.
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*
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* Parameter:
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* data = pointer to card struct, set by kernel timer.data
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*/
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static void
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isdnloop_pollbchan(unsigned long data)
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{
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isdnloop_card *card = (isdnloop_card *) data;
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unsigned long flags;
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if (card->flags & ISDNLOOP_FLAGS_B1ACTIVE)
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isdnloop_bchan_send(card, 0);
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if (card->flags & ISDNLOOP_FLAGS_B2ACTIVE)
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isdnloop_bchan_send(card, 1);
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if (card->flags & (ISDNLOOP_FLAGS_B1ACTIVE | ISDNLOOP_FLAGS_B2ACTIVE)) {
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/* schedule b-channel polling again */
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spin_lock_irqsave(&card->isdnloop_lock, flags);
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card->rb_timer.expires = jiffies + ISDNLOOP_TIMER_BCREAD;
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add_timer(&card->rb_timer);
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card->flags |= ISDNLOOP_FLAGS_RBTIMER;
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spin_unlock_irqrestore(&card->isdnloop_lock, flags);
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} else
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card->flags &= ~ISDNLOOP_FLAGS_RBTIMER;
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}
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/*
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* Parse ICN-type setup string and fill fields of setup-struct
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* with parsed data.
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*
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* Parameter:
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* setup = setup string, format: [caller-id],si1,si2,[called-id]
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* cmd = pointer to struct to be filled.
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*/
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static void
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isdnloop_parse_setup(char *setup, isdn_ctrl * cmd)
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{
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char *t = setup;
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char *s = strchr(t, ',');
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*s++ = '\0';
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strlcpy(cmd->parm.setup.phone, t, sizeof(cmd->parm.setup.phone));
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s = strchr(t = s, ',');
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*s++ = '\0';
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if (!strlen(t))
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cmd->parm.setup.si1 = 0;
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else
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cmd->parm.setup.si1 = simple_strtoul(t, NULL, 10);
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s = strchr(t = s, ',');
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*s++ = '\0';
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if (!strlen(t))
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cmd->parm.setup.si2 = 0;
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else
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cmd->parm.setup.si2 =
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simple_strtoul(t, NULL, 10);
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strlcpy(cmd->parm.setup.eazmsn, s, sizeof(cmd->parm.setup.eazmsn));
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cmd->parm.setup.plan = 0;
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cmd->parm.setup.screen = 0;
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}
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| 146 |
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typedef struct isdnloop_stat {
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char *statstr;
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int command;
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| 149 |
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int action;
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} isdnloop_stat;
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/* *INDENT-OFF* */
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static isdnloop_stat isdnloop_stat_table[] =
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{
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{"BCON_", ISDN_STAT_BCONN, 1}, /* B-Channel connected */
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{"BDIS_", ISDN_STAT_BHUP, 2}, /* B-Channel disconnected */
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{"DCON_", ISDN_STAT_DCONN, 0}, /* D-Channel connected */
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{"DDIS_", ISDN_STAT_DHUP, 0}, /* D-Channel disconnected */
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{"DCAL_I", ISDN_STAT_ICALL, 3}, /* Incoming call dialup-line */
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{"DSCA_I", ISDN_STAT_ICALL, 3}, /* Incoming call 1TR6-SPV */
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{"FCALL", ISDN_STAT_ICALL, 4}, /* Leased line connection up */
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{"CIF", ISDN_STAT_CINF, 5}, /* Charge-info, 1TR6-type */
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{"AOC", ISDN_STAT_CINF, 6}, /* Charge-info, DSS1-type */
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{"CAU", ISDN_STAT_CAUSE, 7}, /* Cause code */
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{"TEI OK", ISDN_STAT_RUN, 0}, /* Card connected to wallplug */
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{"E_L1: ACT FAIL", ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */
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{"E_L2: DATA LIN", ISDN_STAT_BHUP, 8}, /* Layer-2 data link lost */
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{"E_L1: ACTIVATION FAILED",
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ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */
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{NULL, 0, -1}
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};
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/* *INDENT-ON* */
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| 173 |
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/*
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* Parse Status message-strings from virtual card.
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* Depending on status, call statcallb for sending messages to upper
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* levels. Also set/reset B-Channel active-flags.
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*
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* Parameter:
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| 180 |
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* status = status string to parse.
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| 181 |
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* channel = channel where message comes from.
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* card = card where message comes from.
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*/
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static void
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isdnloop_parse_status(u_char * status, int channel, isdnloop_card * card)
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{
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| 187 |
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isdnloop_stat *s = isdnloop_stat_table;
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| 188 |
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int action = -1;
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| 189 |
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isdn_ctrl cmd;
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| 190 |
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| 191 |
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while (s->statstr) {
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| 192 |
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if (!strncmp(status, s->statstr, strlen(s->statstr))) {
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| 193 |
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cmd.command = s->command;
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action = s->action;
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break;
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}
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| 197 |
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s++;
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}
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| 199 |
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if (action == -1)
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return;
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cmd.driver = card->myid;
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cmd.arg = channel;
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switch (action) {
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case 1:
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/* BCON_x */
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card->flags |= (channel) ?
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ISDNLOOP_FLAGS_B2ACTIVE : ISDNLOOP_FLAGS_B1ACTIVE;
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break;
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case 2:
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| 210 |
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/* BDIS_x */
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card->flags &= ~((channel) ?
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ISDNLOOP_FLAGS_B2ACTIVE : ISDNLOOP_FLAGS_B1ACTIVE);
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isdnloop_free_queue(card, channel);
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break;
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| 215 |
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case 3:
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| 216 |
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/* DCAL_I and DSCA_I */
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| 217 |
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isdnloop_parse_setup(status + 6, &cmd);
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| 218 |
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break;
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| 219 |
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case 4:
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| 220 |
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/* FCALL */
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sprintf(cmd.parm.setup.phone, "LEASED%d", card->myid);
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sprintf(cmd.parm.setup.eazmsn, "%d", channel + 1);
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| 223 |
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cmd.parm.setup.si1 = 7;
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| 224 |
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cmd.parm.setup.si2 = 0;
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| 225 |
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cmd.parm.setup.plan = 0;
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| 226 |
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cmd.parm.setup.screen = 0;
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| 227 |
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break;
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| 228 |
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case 5:
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| 229 |
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/* CIF */
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| 230 |
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strlcpy(cmd.parm.num, status + 3, sizeof(cmd.parm.num));
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| 231 |
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break;
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| 232 |
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case 6:
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| 233 |
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/* AOC */
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| 234 |
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snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%d",
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| 235 |
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(int) simple_strtoul(status + 7, NULL, 16));
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| 236 |
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break;
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| 237 |
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case 7:
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| 238 |
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/* CAU */
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| 239 |
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status += 3;
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| 240 |
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if (strlen(status) == 4)
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| 241 |
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snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%s%c%c",
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| 242 |
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status + 2, *status, *(status + 1));
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| 243 |
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else
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| 244 |
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strlcpy(cmd.parm.num, status + 1, sizeof(cmd.parm.num));
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break;
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| 246 |
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case 8:
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| 247 |
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/* Misc Errors on L1 and L2 */
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| 248 |
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card->flags &= ~ISDNLOOP_FLAGS_B1ACTIVE;
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| 249 |
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isdnloop_free_queue(card, 0);
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| 250 |
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cmd.arg = 0;
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| 251 |
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cmd.driver = card->myid;
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| 252 |
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card->interface.statcallb(&cmd);
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| 253 |
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cmd.command = ISDN_STAT_DHUP;
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| 254 |
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cmd.arg = 0;
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| 255 |
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cmd.driver = card->myid;
|
| 256 |
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card->interface.statcallb(&cmd);
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| 257 |
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cmd.command = ISDN_STAT_BHUP;
|
| 258 |
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card->flags &= ~ISDNLOOP_FLAGS_B2ACTIVE;
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| 259 |
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isdnloop_free_queue(card, 1);
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| 260 |
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cmd.arg = 1;
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| 261 |
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cmd.driver = card->myid;
|
| 262 |
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card->interface.statcallb(&cmd);
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| 263 |
|
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cmd.command = ISDN_STAT_DHUP;
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| 264 |
|
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cmd.arg = 1;
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| 265 |
|
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cmd.driver = card->myid;
|
| 266 |
|
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break;
|
| 267 |
|
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}
|
| 268 |
|
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card->interface.statcallb(&cmd);
|
| 269 |
|
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}
|
| 270 |
|
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|
| 271 |
|
|
/*
|
| 272 |
|
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* Store a cwcharacter into ringbuffer for reading from /dev/isdnctrl
|
| 273 |
|
|
*
|
| 274 |
|
|
* Parameter:
|
| 275 |
|
|
* card = pointer to card struct.
|
| 276 |
|
|
* c = char to store.
|
| 277 |
|
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*/
|
| 278 |
|
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static void
|
| 279 |
|
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isdnloop_putmsg(isdnloop_card * card, unsigned char c)
|
| 280 |
|
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{
|
| 281 |
|
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ulong flags;
|
| 282 |
|
|
|
| 283 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 284 |
|
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*card->msg_buf_write++ = (c == 0xff) ? '\n' : c;
|
| 285 |
|
|
if (card->msg_buf_write == card->msg_buf_read) {
|
| 286 |
|
|
if (++card->msg_buf_read > card->msg_buf_end)
|
| 287 |
|
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card->msg_buf_read = card->msg_buf;
|
| 288 |
|
|
}
|
| 289 |
|
|
if (card->msg_buf_write > card->msg_buf_end)
|
| 290 |
|
|
card->msg_buf_write = card->msg_buf;
|
| 291 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 292 |
|
|
}
|
| 293 |
|
|
|
| 294 |
|
|
/*
|
| 295 |
|
|
* Poll a virtual cards message queue.
|
| 296 |
|
|
* If there are new status-replies from the card, copy them to
|
| 297 |
|
|
* ringbuffer for reading on /dev/isdnctrl and call
|
| 298 |
|
|
* isdnloop_parse_status() for processing them. Watch for special
|
| 299 |
|
|
* Firmware bootmessage and parse it, to get the D-Channel protocol.
|
| 300 |
|
|
* If there are B-Channels open, initiate a timer-callback to
|
| 301 |
|
|
* isdnloop_pollbchan().
|
| 302 |
|
|
* This routine is called periodically via timer interrupt.
|
| 303 |
|
|
*
|
| 304 |
|
|
* Parameter:
|
| 305 |
|
|
* data = pointer to card struct
|
| 306 |
|
|
*/
|
| 307 |
|
|
static void
|
| 308 |
|
|
isdnloop_polldchan(unsigned long data)
|
| 309 |
|
|
{
|
| 310 |
|
|
isdnloop_card *card = (isdnloop_card *) data;
|
| 311 |
|
|
struct sk_buff *skb;
|
| 312 |
|
|
int avail;
|
| 313 |
|
|
int left;
|
| 314 |
|
|
u_char c;
|
| 315 |
|
|
int ch;
|
| 316 |
|
|
unsigned long flags;
|
| 317 |
|
|
u_char *p;
|
| 318 |
|
|
isdn_ctrl cmd;
|
| 319 |
|
|
|
| 320 |
|
|
if ((skb = skb_dequeue(&card->dqueue)))
|
| 321 |
|
|
avail = skb->len;
|
| 322 |
|
|
else
|
| 323 |
|
|
avail = 0;
|
| 324 |
|
|
for (left = avail; left > 0; left--) {
|
| 325 |
|
|
c = *skb->data;
|
| 326 |
|
|
skb_pull(skb, 1);
|
| 327 |
|
|
isdnloop_putmsg(card, c);
|
| 328 |
|
|
card->imsg[card->iptr] = c;
|
| 329 |
|
|
if (card->iptr < 59)
|
| 330 |
|
|
card->iptr++;
|
| 331 |
|
|
if (!skb->len) {
|
| 332 |
|
|
avail++;
|
| 333 |
|
|
isdnloop_putmsg(card, '\n');
|
| 334 |
|
|
card->imsg[card->iptr] = 0;
|
| 335 |
|
|
card->iptr = 0;
|
| 336 |
|
|
if (card->imsg[0] == '0' && card->imsg[1] >= '0' &&
|
| 337 |
|
|
card->imsg[1] <= '2' && card->imsg[2] == ';') {
|
| 338 |
|
|
ch = (card->imsg[1] - '0') - 1;
|
| 339 |
|
|
p = &card->imsg[3];
|
| 340 |
|
|
isdnloop_parse_status(p, ch, card);
|
| 341 |
|
|
} else {
|
| 342 |
|
|
p = card->imsg;
|
| 343 |
|
|
if (!strncmp(p, "DRV1.", 5)) {
|
| 344 |
|
|
printk(KERN_INFO "isdnloop: (%s) %s\n", CID, p);
|
| 345 |
|
|
if (!strncmp(p + 7, "TC", 2)) {
|
| 346 |
|
|
card->ptype = ISDN_PTYPE_1TR6;
|
| 347 |
|
|
card->interface.features |= ISDN_FEATURE_P_1TR6;
|
| 348 |
|
|
printk(KERN_INFO
|
| 349 |
|
|
"isdnloop: (%s) 1TR6-Protocol loaded and running\n", CID);
|
| 350 |
|
|
}
|
| 351 |
|
|
if (!strncmp(p + 7, "EC", 2)) {
|
| 352 |
|
|
card->ptype = ISDN_PTYPE_EURO;
|
| 353 |
|
|
card->interface.features |= ISDN_FEATURE_P_EURO;
|
| 354 |
|
|
printk(KERN_INFO
|
| 355 |
|
|
"isdnloop: (%s) Euro-Protocol loaded and running\n", CID);
|
| 356 |
|
|
}
|
| 357 |
|
|
continue;
|
| 358 |
|
|
|
| 359 |
|
|
}
|
| 360 |
|
|
}
|
| 361 |
|
|
}
|
| 362 |
|
|
}
|
| 363 |
|
|
if (avail) {
|
| 364 |
|
|
cmd.command = ISDN_STAT_STAVAIL;
|
| 365 |
|
|
cmd.driver = card->myid;
|
| 366 |
|
|
cmd.arg = avail;
|
| 367 |
|
|
card->interface.statcallb(&cmd);
|
| 368 |
|
|
}
|
| 369 |
|
|
if (card->flags & (ISDNLOOP_FLAGS_B1ACTIVE | ISDNLOOP_FLAGS_B2ACTIVE))
|
| 370 |
|
|
if (!(card->flags & ISDNLOOP_FLAGS_RBTIMER)) {
|
| 371 |
|
|
/* schedule b-channel polling */
|
| 372 |
|
|
card->flags |= ISDNLOOP_FLAGS_RBTIMER;
|
| 373 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 374 |
|
|
del_timer(&card->rb_timer);
|
| 375 |
|
|
card->rb_timer.function = isdnloop_pollbchan;
|
| 376 |
|
|
card->rb_timer.data = (unsigned long) card;
|
| 377 |
|
|
card->rb_timer.expires = jiffies + ISDNLOOP_TIMER_BCREAD;
|
| 378 |
|
|
add_timer(&card->rb_timer);
|
| 379 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 380 |
|
|
}
|
| 381 |
|
|
/* schedule again */
|
| 382 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 383 |
|
|
card->st_timer.expires = jiffies + ISDNLOOP_TIMER_DCREAD;
|
| 384 |
|
|
add_timer(&card->st_timer);
|
| 385 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 386 |
|
|
}
|
| 387 |
|
|
|
| 388 |
|
|
/*
|
| 389 |
|
|
* Append a packet to the transmit buffer-queue.
|
| 390 |
|
|
*
|
| 391 |
|
|
* Parameter:
|
| 392 |
|
|
* channel = Number of B-channel
|
| 393 |
|
|
* skb = packet to send.
|
| 394 |
|
|
* card = pointer to card-struct
|
| 395 |
|
|
* Return:
|
| 396 |
|
|
* Number of bytes transferred, -E??? on error
|
| 397 |
|
|
*/
|
| 398 |
|
|
static int
|
| 399 |
|
|
isdnloop_sendbuf(int channel, struct sk_buff *skb, isdnloop_card * card)
|
| 400 |
|
|
{
|
| 401 |
|
|
int len = skb->len;
|
| 402 |
|
|
unsigned long flags;
|
| 403 |
|
|
struct sk_buff *nskb;
|
| 404 |
|
|
|
| 405 |
|
|
if (len > 4000) {
|
| 406 |
|
|
printk(KERN_WARNING
|
| 407 |
|
|
"isdnloop: Send packet too large\n");
|
| 408 |
|
|
return -EINVAL;
|
| 409 |
|
|
}
|
| 410 |
|
|
if (len) {
|
| 411 |
|
|
if (!(card->flags & (channel) ? ISDNLOOP_FLAGS_B2ACTIVE : ISDNLOOP_FLAGS_B1ACTIVE))
|
| 412 |
|
|
return 0;
|
| 413 |
|
|
if (card->sndcount[channel] > ISDNLOOP_MAX_SQUEUE)
|
| 414 |
|
|
return 0;
|
| 415 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 416 |
|
|
nskb = dev_alloc_skb(skb->len);
|
| 417 |
|
|
if (nskb) {
|
| 418 |
|
|
skb_copy_from_linear_data(skb,
|
| 419 |
|
|
skb_put(nskb, len), len);
|
| 420 |
|
|
skb_queue_tail(&card->bqueue[channel], nskb);
|
| 421 |
|
|
dev_kfree_skb(skb);
|
| 422 |
|
|
} else
|
| 423 |
|
|
len = 0;
|
| 424 |
|
|
card->sndcount[channel] += len;
|
| 425 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 426 |
|
|
}
|
| 427 |
|
|
return len;
|
| 428 |
|
|
}
|
| 429 |
|
|
|
| 430 |
|
|
/*
|
| 431 |
|
|
* Read the messages from the card's ringbuffer
|
| 432 |
|
|
*
|
| 433 |
|
|
* Parameter:
|
| 434 |
|
|
* buf = pointer to buffer.
|
| 435 |
|
|
* len = number of bytes to read.
|
| 436 |
|
|
* user = flag, 1: called from userlevel 0: called from kernel.
|
| 437 |
|
|
* card = pointer to card struct.
|
| 438 |
|
|
* Return:
|
| 439 |
|
|
* number of bytes actually transferred.
|
| 440 |
|
|
*/
|
| 441 |
|
|
static int
|
| 442 |
|
|
isdnloop_readstatus(u_char __user *buf, int len, isdnloop_card * card)
|
| 443 |
|
|
{
|
| 444 |
|
|
int count;
|
| 445 |
|
|
u_char __user *p;
|
| 446 |
|
|
|
| 447 |
|
|
for (p = buf, count = 0; count < len; p++, count++) {
|
| 448 |
|
|
if (card->msg_buf_read == card->msg_buf_write)
|
| 449 |
|
|
return count;
|
| 450 |
|
|
if (put_user(*card->msg_buf_read++, p))
|
| 451 |
|
|
return -EFAULT;
|
| 452 |
|
|
if (card->msg_buf_read > card->msg_buf_end)
|
| 453 |
|
|
card->msg_buf_read = card->msg_buf;
|
| 454 |
|
|
}
|
| 455 |
|
|
return count;
|
| 456 |
|
|
}
|
| 457 |
|
|
|
| 458 |
|
|
/*
|
| 459 |
|
|
* Simulate a card's response by appending it to the cards
|
| 460 |
|
|
* message queue.
|
| 461 |
|
|
*
|
| 462 |
|
|
* Parameter:
|
| 463 |
|
|
* card = pointer to card struct.
|
| 464 |
|
|
* s = pointer to message-string.
|
| 465 |
|
|
* ch = channel: 0 = generic messages, 1 and 2 = D-channel messages.
|
| 466 |
|
|
* Return:
|
| 467 |
|
|
* 0 on success, 1 on memory squeeze.
|
| 468 |
|
|
*/
|
| 469 |
|
|
static int
|
| 470 |
|
|
isdnloop_fake(isdnloop_card * card, char *s, int ch)
|
| 471 |
|
|
{
|
| 472 |
|
|
struct sk_buff *skb;
|
| 473 |
|
|
int len = strlen(s) + ((ch >= 0) ? 3 : 0);
|
| 474 |
|
|
|
| 475 |
|
|
if (!(skb = dev_alloc_skb(len))) {
|
| 476 |
|
|
printk(KERN_WARNING "isdnloop: Out of memory in isdnloop_fake\n");
|
| 477 |
|
|
return 1;
|
| 478 |
|
|
}
|
| 479 |
|
|
if (ch >= 0)
|
| 480 |
|
|
sprintf(skb_put(skb, 3), "%02d;", ch);
|
| 481 |
|
|
memcpy(skb_put(skb, strlen(s)), s, strlen(s));
|
| 482 |
|
|
skb_queue_tail(&card->dqueue, skb);
|
| 483 |
|
|
return 0;
|
| 484 |
|
|
}
|
| 485 |
|
|
/* *INDENT-OFF* */
|
| 486 |
|
|
static isdnloop_stat isdnloop_cmd_table[] =
|
| 487 |
|
|
{
|
| 488 |
|
|
{"BCON_R", 0, 1}, /* B-Channel connect */
|
| 489 |
|
|
{"BCON_I", 0, 17}, /* B-Channel connect ind */
|
| 490 |
|
|
{"BDIS_R", 0, 2}, /* B-Channel disconnect */
|
| 491 |
|
|
{"DDIS_R", 0, 3}, /* D-Channel disconnect */
|
| 492 |
|
|
{"DCON_R", 0, 16}, /* D-Channel connect */
|
| 493 |
|
|
{"DSCA_R", 0, 4}, /* Dial 1TR6-SPV */
|
| 494 |
|
|
{"DCAL_R", 0, 5}, /* Dial */
|
| 495 |
|
|
{"EAZC", 0, 6}, /* Clear EAZ listener */
|
| 496 |
|
|
{"EAZ", 0, 7}, /* Set EAZ listener */
|
| 497 |
|
|
{"SEEAZ", 0, 8}, /* Get EAZ listener */
|
| 498 |
|
|
{"MSN", 0, 9}, /* Set/Clear MSN listener */
|
| 499 |
|
|
{"MSALL", 0, 10}, /* Set multi MSN listeners */
|
| 500 |
|
|
{"SETSIL", 0, 11}, /* Set SI list */
|
| 501 |
|
|
{"SEESIL", 0, 12}, /* Get SI list */
|
| 502 |
|
|
{"SILC", 0, 13}, /* Clear SI list */
|
| 503 |
|
|
{"LOCK", 0, -1}, /* LOCK channel */
|
| 504 |
|
|
{"UNLOCK", 0, -1}, /* UNLOCK channel */
|
| 505 |
|
|
{"FV2ON", 1, 14}, /* Leased mode on */
|
| 506 |
|
|
{"FV2OFF", 1, 15}, /* Leased mode off */
|
| 507 |
|
|
{NULL, 0, -1}
|
| 508 |
|
|
};
|
| 509 |
|
|
/* *INDENT-ON* */
|
| 510 |
|
|
|
| 511 |
|
|
|
| 512 |
|
|
/*
|
| 513 |
|
|
* Simulate an error-response from a card.
|
| 514 |
|
|
*
|
| 515 |
|
|
* Parameter:
|
| 516 |
|
|
* card = pointer to card struct.
|
| 517 |
|
|
*/
|
| 518 |
|
|
static void
|
| 519 |
|
|
isdnloop_fake_err(isdnloop_card * card)
|
| 520 |
|
|
{
|
| 521 |
|
|
char buf[60];
|
| 522 |
|
|
|
| 523 |
|
|
sprintf(buf, "E%s", card->omsg);
|
| 524 |
|
|
isdnloop_fake(card, buf, -1);
|
| 525 |
|
|
isdnloop_fake(card, "NAK", -1);
|
| 526 |
|
|
}
|
| 527 |
|
|
|
| 528 |
|
|
static u_char ctable_eu[] =
|
| 529 |
|
|
{0x00, 0x11, 0x01, 0x12};
|
| 530 |
|
|
static u_char ctable_1t[] =
|
| 531 |
|
|
{0x00, 0x3b, 0x01, 0x3a};
|
| 532 |
|
|
|
| 533 |
|
|
/*
|
| 534 |
|
|
* Assemble a simplified cause message depending on the
|
| 535 |
|
|
* D-channel protocol used.
|
| 536 |
|
|
*
|
| 537 |
|
|
* Parameter:
|
| 538 |
|
|
* card = pointer to card struct.
|
| 539 |
|
|
* loc = location: 0 = local, 1 = remote.
|
| 540 |
|
|
* cau = cause: 1 = busy, 2 = nonexistent callerid, 3 = no user responding.
|
| 541 |
|
|
* Return:
|
| 542 |
|
|
* Pointer to buffer containing the assembled message.
|
| 543 |
|
|
*/
|
| 544 |
|
|
static char *
|
| 545 |
|
|
isdnloop_unicause(isdnloop_card * card, int loc, int cau)
|
| 546 |
|
|
{
|
| 547 |
|
|
static char buf[6];
|
| 548 |
|
|
|
| 549 |
|
|
switch (card->ptype) {
|
| 550 |
|
|
case ISDN_PTYPE_EURO:
|
| 551 |
|
|
sprintf(buf, "E%02X%02X", (loc) ? 4 : 2, ctable_eu[cau]);
|
| 552 |
|
|
break;
|
| 553 |
|
|
case ISDN_PTYPE_1TR6:
|
| 554 |
|
|
sprintf(buf, "%02X44", ctable_1t[cau]);
|
| 555 |
|
|
break;
|
| 556 |
|
|
default:
|
| 557 |
|
|
return ("0000");
|
| 558 |
|
|
}
|
| 559 |
|
|
return (buf);
|
| 560 |
|
|
}
|
| 561 |
|
|
|
| 562 |
|
|
/*
|
| 563 |
|
|
* Release a virtual connection. Called from timer interrupt, when
|
| 564 |
|
|
* called party did not respond.
|
| 565 |
|
|
*
|
| 566 |
|
|
* Parameter:
|
| 567 |
|
|
* card = pointer to card struct.
|
| 568 |
|
|
* ch = channel (0-based)
|
| 569 |
|
|
*/
|
| 570 |
|
|
static void
|
| 571 |
|
|
isdnloop_atimeout(isdnloop_card * card, int ch)
|
| 572 |
|
|
{
|
| 573 |
|
|
unsigned long flags;
|
| 574 |
|
|
char buf[60];
|
| 575 |
|
|
|
| 576 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 577 |
|
|
if (card->rcard) {
|
| 578 |
|
|
isdnloop_fake(card->rcard[ch], "DDIS_I", card->rch[ch] + 1);
|
| 579 |
|
|
card->rcard[ch]->rcard[card->rch[ch]] = NULL;
|
| 580 |
|
|
card->rcard[ch] = NULL;
|
| 581 |
|
|
}
|
| 582 |
|
|
isdnloop_fake(card, "DDIS_I", ch + 1);
|
| 583 |
|
|
/* No user responding */
|
| 584 |
|
|
sprintf(buf, "CAU%s", isdnloop_unicause(card, 1, 3));
|
| 585 |
|
|
isdnloop_fake(card, buf, ch + 1);
|
| 586 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 587 |
|
|
}
|
| 588 |
|
|
|
| 589 |
|
|
/*
|
| 590 |
|
|
* Wrapper for isdnloop_atimeout().
|
| 591 |
|
|
*/
|
| 592 |
|
|
static void
|
| 593 |
|
|
isdnloop_atimeout0(unsigned long data)
|
| 594 |
|
|
{
|
| 595 |
|
|
isdnloop_card *card = (isdnloop_card *) data;
|
| 596 |
|
|
isdnloop_atimeout(card, 0);
|
| 597 |
|
|
}
|
| 598 |
|
|
|
| 599 |
|
|
/*
|
| 600 |
|
|
* Wrapper for isdnloop_atimeout().
|
| 601 |
|
|
*/
|
| 602 |
|
|
static void
|
| 603 |
|
|
isdnloop_atimeout1(unsigned long data)
|
| 604 |
|
|
{
|
| 605 |
|
|
isdnloop_card *card = (isdnloop_card *) data;
|
| 606 |
|
|
isdnloop_atimeout(card, 1);
|
| 607 |
|
|
}
|
| 608 |
|
|
|
| 609 |
|
|
/*
|
| 610 |
|
|
* Install a watchdog for a user, not responding.
|
| 611 |
|
|
*
|
| 612 |
|
|
* Parameter:
|
| 613 |
|
|
* card = pointer to card struct.
|
| 614 |
|
|
* ch = channel to watch for.
|
| 615 |
|
|
*/
|
| 616 |
|
|
static void
|
| 617 |
|
|
isdnloop_start_ctimer(isdnloop_card * card, int ch)
|
| 618 |
|
|
{
|
| 619 |
|
|
unsigned long flags;
|
| 620 |
|
|
|
| 621 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 622 |
|
|
init_timer(&card->c_timer[ch]);
|
| 623 |
|
|
card->c_timer[ch].expires = jiffies + ISDNLOOP_TIMER_ALERTWAIT;
|
| 624 |
|
|
if (ch)
|
| 625 |
|
|
card->c_timer[ch].function = isdnloop_atimeout1;
|
| 626 |
|
|
else
|
| 627 |
|
|
card->c_timer[ch].function = isdnloop_atimeout0;
|
| 628 |
|
|
card->c_timer[ch].data = (unsigned long) card;
|
| 629 |
|
|
add_timer(&card->c_timer[ch]);
|
| 630 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 631 |
|
|
}
|
| 632 |
|
|
|
| 633 |
|
|
/*
|
| 634 |
|
|
* Kill a pending channel watchdog.
|
| 635 |
|
|
*
|
| 636 |
|
|
* Parameter:
|
| 637 |
|
|
* card = pointer to card struct.
|
| 638 |
|
|
* ch = channel (0-based).
|
| 639 |
|
|
*/
|
| 640 |
|
|
static void
|
| 641 |
|
|
isdnloop_kill_ctimer(isdnloop_card * card, int ch)
|
| 642 |
|
|
{
|
| 643 |
|
|
unsigned long flags;
|
| 644 |
|
|
|
| 645 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 646 |
|
|
del_timer(&card->c_timer[ch]);
|
| 647 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 648 |
|
|
}
|
| 649 |
|
|
|
| 650 |
|
|
static u_char si2bit[] =
|
| 651 |
|
|
{0, 1, 0, 0, 0, 2, 0, 4, 0, 0};
|
| 652 |
|
|
static u_char bit2si[] =
|
| 653 |
|
|
{1, 5, 7};
|
| 654 |
|
|
|
| 655 |
|
|
/*
|
| 656 |
|
|
* Try finding a listener for an outgoing call.
|
| 657 |
|
|
*
|
| 658 |
|
|
* Parameter:
|
| 659 |
|
|
* card = pointer to calling card.
|
| 660 |
|
|
* p = pointer to ICN-type setup-string.
|
| 661 |
|
|
* lch = channel of calling card.
|
| 662 |
|
|
* cmd = pointer to struct to be filled when parsing setup.
|
| 663 |
|
|
* Return:
|
| 664 |
|
|
* 0 = found match, alerting should happen.
|
| 665 |
|
|
* 1 = found matching number but it is busy.
|
| 666 |
|
|
* 2 = no matching listener.
|
| 667 |
|
|
* 3 = found matching number but SI does not match.
|
| 668 |
|
|
*/
|
| 669 |
|
|
static int
|
| 670 |
|
|
isdnloop_try_call(isdnloop_card * card, char *p, int lch, isdn_ctrl * cmd)
|
| 671 |
|
|
{
|
| 672 |
|
|
isdnloop_card *cc = cards;
|
| 673 |
|
|
unsigned long flags;
|
| 674 |
|
|
int ch;
|
| 675 |
|
|
int num_match;
|
| 676 |
|
|
int i;
|
| 677 |
|
|
char *e;
|
| 678 |
|
|
char nbuf[32];
|
| 679 |
|
|
|
| 680 |
|
|
isdnloop_parse_setup(p, cmd);
|
| 681 |
|
|
while (cc) {
|
| 682 |
|
|
for (ch = 0; ch < 2; ch++) {
|
| 683 |
|
|
/* Exclude ourself */
|
| 684 |
|
|
if ((cc == card) && (ch == lch))
|
| 685 |
|
|
continue;
|
| 686 |
|
|
num_match = 0;
|
| 687 |
|
|
switch (cc->ptype) {
|
| 688 |
|
|
case ISDN_PTYPE_EURO:
|
| 689 |
|
|
for (i = 0; i < 3; i++)
|
| 690 |
|
|
if (!(strcmp(cc->s0num[i], cmd->parm.setup.phone)))
|
| 691 |
|
|
num_match = 1;
|
| 692 |
|
|
break;
|
| 693 |
|
|
case ISDN_PTYPE_1TR6:
|
| 694 |
|
|
e = cc->eazlist[ch];
|
| 695 |
|
|
while (*e) {
|
| 696 |
|
|
sprintf(nbuf, "%s%c", cc->s0num[0], *e);
|
| 697 |
|
|
if (!(strcmp(nbuf, cmd->parm.setup.phone)))
|
| 698 |
|
|
num_match = 1;
|
| 699 |
|
|
e++;
|
| 700 |
|
|
}
|
| 701 |
|
|
}
|
| 702 |
|
|
if (num_match) {
|
| 703 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 704 |
|
|
/* channel idle? */
|
| 705 |
|
|
if (!(cc->rcard[ch])) {
|
| 706 |
|
|
/* Check SI */
|
| 707 |
|
|
if (!(si2bit[cmd->parm.setup.si1] & cc->sil[ch])) {
|
| 708 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 709 |
|
|
return 3;
|
| 710 |
|
|
}
|
| 711 |
|
|
/* ch is idle, si and number matches */
|
| 712 |
|
|
cc->rcard[ch] = card;
|
| 713 |
|
|
cc->rch[ch] = lch;
|
| 714 |
|
|
card->rcard[lch] = cc;
|
| 715 |
|
|
card->rch[lch] = ch;
|
| 716 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 717 |
|
|
return 0;
|
| 718 |
|
|
} else {
|
| 719 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 720 |
|
|
/* num matches, but busy */
|
| 721 |
|
|
if (ch == 1)
|
| 722 |
|
|
return 1;
|
| 723 |
|
|
}
|
| 724 |
|
|
}
|
| 725 |
|
|
}
|
| 726 |
|
|
cc = cc->next;
|
| 727 |
|
|
}
|
| 728 |
|
|
return 2;
|
| 729 |
|
|
}
|
| 730 |
|
|
|
| 731 |
|
|
/*
|
| 732 |
|
|
* Depending on D-channel protocol and caller/called, modify
|
| 733 |
|
|
* phone number.
|
| 734 |
|
|
*
|
| 735 |
|
|
* Parameter:
|
| 736 |
|
|
* card = pointer to card struct.
|
| 737 |
|
|
* phone = pointer phone number.
|
| 738 |
|
|
* caller = flag: 1 = caller, 0 = called.
|
| 739 |
|
|
* Return:
|
| 740 |
|
|
* pointer to new phone number.
|
| 741 |
|
|
*/
|
| 742 |
|
|
static char *
|
| 743 |
|
|
isdnloop_vstphone(isdnloop_card * card, char *phone, int caller)
|
| 744 |
|
|
{
|
| 745 |
|
|
int i;
|
| 746 |
|
|
static char nphone[30];
|
| 747 |
|
|
|
| 748 |
|
|
if (!card) {
|
| 749 |
|
|
printk("BUG!!!\n");
|
| 750 |
|
|
return "";
|
| 751 |
|
|
}
|
| 752 |
|
|
switch (card->ptype) {
|
| 753 |
|
|
case ISDN_PTYPE_EURO:
|
| 754 |
|
|
if (caller) {
|
| 755 |
|
|
for (i = 0; i < 2; i++)
|
| 756 |
|
|
if (!(strcmp(card->s0num[i], phone)))
|
| 757 |
|
|
return (phone);
|
| 758 |
|
|
return (card->s0num[0]);
|
| 759 |
|
|
}
|
| 760 |
|
|
return (phone);
|
| 761 |
|
|
break;
|
| 762 |
|
|
case ISDN_PTYPE_1TR6:
|
| 763 |
|
|
if (caller) {
|
| 764 |
|
|
sprintf(nphone, "%s%c", card->s0num[0], phone[0]);
|
| 765 |
|
|
return (nphone);
|
| 766 |
|
|
} else
|
| 767 |
|
|
return (&phone[strlen(phone) - 1]);
|
| 768 |
|
|
break;
|
| 769 |
|
|
}
|
| 770 |
|
|
return "";
|
| 771 |
|
|
}
|
| 772 |
|
|
|
| 773 |
|
|
/*
|
| 774 |
|
|
* Parse an ICN-type command string sent to the 'card'.
|
| 775 |
|
|
* Perform misc. actions depending on the command.
|
| 776 |
|
|
*
|
| 777 |
|
|
* Parameter:
|
| 778 |
|
|
* card = pointer to card struct.
|
| 779 |
|
|
*/
|
| 780 |
|
|
static void
|
| 781 |
|
|
isdnloop_parse_cmd(isdnloop_card * card)
|
| 782 |
|
|
{
|
| 783 |
|
|
char *p = card->omsg;
|
| 784 |
|
|
isdn_ctrl cmd;
|
| 785 |
|
|
char buf[60];
|
| 786 |
|
|
isdnloop_stat *s = isdnloop_cmd_table;
|
| 787 |
|
|
int action = -1;
|
| 788 |
|
|
int i;
|
| 789 |
|
|
int ch;
|
| 790 |
|
|
|
| 791 |
|
|
if ((card->omsg[0] != '0') && (card->omsg[2] != ';')) {
|
| 792 |
|
|
isdnloop_fake_err(card);
|
| 793 |
|
|
return;
|
| 794 |
|
|
}
|
| 795 |
|
|
ch = card->omsg[1] - '0';
|
| 796 |
|
|
if ((ch < 0) || (ch > 2)) {
|
| 797 |
|
|
isdnloop_fake_err(card);
|
| 798 |
|
|
return;
|
| 799 |
|
|
}
|
| 800 |
|
|
p += 3;
|
| 801 |
|
|
while (s->statstr) {
|
| 802 |
|
|
if (!strncmp(p, s->statstr, strlen(s->statstr))) {
|
| 803 |
|
|
action = s->action;
|
| 804 |
|
|
if (s->command && (ch != 0)) {
|
| 805 |
|
|
isdnloop_fake_err(card);
|
| 806 |
|
|
return;
|
| 807 |
|
|
}
|
| 808 |
|
|
break;
|
| 809 |
|
|
}
|
| 810 |
|
|
s++;
|
| 811 |
|
|
}
|
| 812 |
|
|
if (action == -1)
|
| 813 |
|
|
return;
|
| 814 |
|
|
switch (action) {
|
| 815 |
|
|
case 1:
|
| 816 |
|
|
/* 0x;BCON_R */
|
| 817 |
|
|
if (card->rcard[ch - 1]) {
|
| 818 |
|
|
isdnloop_fake(card->rcard[ch - 1], "BCON_I",
|
| 819 |
|
|
card->rch[ch - 1] + 1);
|
| 820 |
|
|
isdnloop_fake(card, "BCON_C", ch);
|
| 821 |
|
|
}
|
| 822 |
|
|
break;
|
| 823 |
|
|
case 17:
|
| 824 |
|
|
/* 0x;BCON_I */
|
| 825 |
|
|
if (card->rcard[ch - 1]) {
|
| 826 |
|
|
isdnloop_fake(card->rcard[ch - 1], "BCON_C",
|
| 827 |
|
|
card->rch[ch - 1] + 1);
|
| 828 |
|
|
}
|
| 829 |
|
|
break;
|
| 830 |
|
|
case 2:
|
| 831 |
|
|
/* 0x;BDIS_R */
|
| 832 |
|
|
isdnloop_fake(card, "BDIS_C", ch);
|
| 833 |
|
|
if (card->rcard[ch - 1]) {
|
| 834 |
|
|
isdnloop_fake(card->rcard[ch - 1], "BDIS_I",
|
| 835 |
|
|
card->rch[ch - 1] + 1);
|
| 836 |
|
|
}
|
| 837 |
|
|
break;
|
| 838 |
|
|
case 16:
|
| 839 |
|
|
/* 0x;DCON_R */
|
| 840 |
|
|
isdnloop_kill_ctimer(card, ch - 1);
|
| 841 |
|
|
if (card->rcard[ch - 1]) {
|
| 842 |
|
|
isdnloop_kill_ctimer(card->rcard[ch - 1], card->rch[ch - 1]);
|
| 843 |
|
|
isdnloop_fake(card->rcard[ch - 1], "DCON_C",
|
| 844 |
|
|
card->rch[ch - 1] + 1);
|
| 845 |
|
|
isdnloop_fake(card, "DCON_C", ch);
|
| 846 |
|
|
}
|
| 847 |
|
|
break;
|
| 848 |
|
|
case 3:
|
| 849 |
|
|
/* 0x;DDIS_R */
|
| 850 |
|
|
isdnloop_kill_ctimer(card, ch - 1);
|
| 851 |
|
|
if (card->rcard[ch - 1]) {
|
| 852 |
|
|
isdnloop_kill_ctimer(card->rcard[ch - 1], card->rch[ch - 1]);
|
| 853 |
|
|
isdnloop_fake(card->rcard[ch - 1], "DDIS_I",
|
| 854 |
|
|
card->rch[ch - 1] + 1);
|
| 855 |
|
|
card->rcard[ch - 1] = NULL;
|
| 856 |
|
|
}
|
| 857 |
|
|
isdnloop_fake(card, "DDIS_C", ch);
|
| 858 |
|
|
break;
|
| 859 |
|
|
case 4:
|
| 860 |
|
|
/* 0x;DSCA_Rdd,yy,zz,oo */
|
| 861 |
|
|
if (card->ptype != ISDN_PTYPE_1TR6) {
|
| 862 |
|
|
isdnloop_fake_err(card);
|
| 863 |
|
|
return;
|
| 864 |
|
|
}
|
| 865 |
|
|
/* Fall through */
|
| 866 |
|
|
case 5:
|
| 867 |
|
|
/* 0x;DCAL_Rdd,yy,zz,oo */
|
| 868 |
|
|
p += 6;
|
| 869 |
|
|
switch (isdnloop_try_call(card, p, ch - 1, &cmd)) {
|
| 870 |
|
|
case 0:
|
| 871 |
|
|
/* Alerting */
|
| 872 |
|
|
sprintf(buf, "D%s_I%s,%02d,%02d,%s",
|
| 873 |
|
|
(action == 4) ? "SCA" : "CAL",
|
| 874 |
|
|
isdnloop_vstphone(card, cmd.parm.setup.eazmsn, 1),
|
| 875 |
|
|
cmd.parm.setup.si1,
|
| 876 |
|
|
cmd.parm.setup.si2,
|
| 877 |
|
|
isdnloop_vstphone(card->rcard[ch - 1],
|
| 878 |
|
|
cmd.parm.setup.phone, 0));
|
| 879 |
|
|
isdnloop_fake(card->rcard[ch - 1], buf, card->rch[ch - 1] + 1);
|
| 880 |
|
|
/* Fall through */
|
| 881 |
|
|
case 3:
|
| 882 |
|
|
/* si1 does not match, don't alert but start timer */
|
| 883 |
|
|
isdnloop_start_ctimer(card, ch - 1);
|
| 884 |
|
|
break;
|
| 885 |
|
|
case 1:
|
| 886 |
|
|
/* Remote busy */
|
| 887 |
|
|
isdnloop_fake(card, "DDIS_I", ch);
|
| 888 |
|
|
sprintf(buf, "CAU%s", isdnloop_unicause(card, 1, 1));
|
| 889 |
|
|
isdnloop_fake(card, buf, ch);
|
| 890 |
|
|
break;
|
| 891 |
|
|
case 2:
|
| 892 |
|
|
/* No such user */
|
| 893 |
|
|
isdnloop_fake(card, "DDIS_I", ch);
|
| 894 |
|
|
sprintf(buf, "CAU%s", isdnloop_unicause(card, 1, 2));
|
| 895 |
|
|
isdnloop_fake(card, buf, ch);
|
| 896 |
|
|
break;
|
| 897 |
|
|
}
|
| 898 |
|
|
break;
|
| 899 |
|
|
case 6:
|
| 900 |
|
|
/* 0x;EAZC */
|
| 901 |
|
|
card->eazlist[ch - 1][0] = '\0';
|
| 902 |
|
|
break;
|
| 903 |
|
|
case 7:
|
| 904 |
|
|
/* 0x;EAZ */
|
| 905 |
|
|
p += 3;
|
| 906 |
|
|
strcpy(card->eazlist[ch - 1], p);
|
| 907 |
|
|
break;
|
| 908 |
|
|
case 8:
|
| 909 |
|
|
/* 0x;SEEAZ */
|
| 910 |
|
|
sprintf(buf, "EAZ-LIST: %s", card->eazlist[ch - 1]);
|
| 911 |
|
|
isdnloop_fake(card, buf, ch + 1);
|
| 912 |
|
|
break;
|
| 913 |
|
|
case 9:
|
| 914 |
|
|
/* 0x;MSN */
|
| 915 |
|
|
break;
|
| 916 |
|
|
case 10:
|
| 917 |
|
|
/* 0x;MSNALL */
|
| 918 |
|
|
break;
|
| 919 |
|
|
case 11:
|
| 920 |
|
|
/* 0x;SETSIL */
|
| 921 |
|
|
p += 6;
|
| 922 |
|
|
i = 0;
|
| 923 |
|
|
while (strchr("0157", *p)) {
|
| 924 |
|
|
if (i)
|
| 925 |
|
|
card->sil[ch - 1] |= si2bit[*p - '0'];
|
| 926 |
|
|
i = (*p++ == '0');
|
| 927 |
|
|
}
|
| 928 |
|
|
if (*p)
|
| 929 |
|
|
isdnloop_fake_err(card);
|
| 930 |
|
|
break;
|
| 931 |
|
|
case 12:
|
| 932 |
|
|
/* 0x;SEESIL */
|
| 933 |
|
|
sprintf(buf, "SIN-LIST: ");
|
| 934 |
|
|
p = buf + 10;
|
| 935 |
|
|
for (i = 0; i < 3; i++)
|
| 936 |
|
|
if (card->sil[ch - 1] & (1 << i))
|
| 937 |
|
|
p += sprintf(p, "%02d", bit2si[i]);
|
| 938 |
|
|
isdnloop_fake(card, buf, ch + 1);
|
| 939 |
|
|
break;
|
| 940 |
|
|
case 13:
|
| 941 |
|
|
/* 0x;SILC */
|
| 942 |
|
|
card->sil[ch - 1] = 0;
|
| 943 |
|
|
break;
|
| 944 |
|
|
case 14:
|
| 945 |
|
|
/* 00;FV2ON */
|
| 946 |
|
|
break;
|
| 947 |
|
|
case 15:
|
| 948 |
|
|
/* 00;FV2OFF */
|
| 949 |
|
|
break;
|
| 950 |
|
|
}
|
| 951 |
|
|
}
|
| 952 |
|
|
|
| 953 |
|
|
/*
|
| 954 |
|
|
* Put command-strings into the of the 'card'. In reality, execute them
|
| 955 |
|
|
* right in place by calling isdnloop_parse_cmd(). Also copy every
|
| 956 |
|
|
* command to the read message ringbuffer, preceeding it with a '>'.
|
| 957 |
|
|
* These mesagges can be read at /dev/isdnctrl.
|
| 958 |
|
|
*
|
| 959 |
|
|
* Parameter:
|
| 960 |
|
|
* buf = pointer to command buffer.
|
| 961 |
|
|
* len = length of buffer data.
|
| 962 |
|
|
* user = flag: 1 = called form userlevel, 0 called from kernel.
|
| 963 |
|
|
* card = pointer to card struct.
|
| 964 |
|
|
* Return:
|
| 965 |
|
|
* number of bytes transferred (currently always equals len).
|
| 966 |
|
|
*/
|
| 967 |
|
|
static int
|
| 968 |
|
|
isdnloop_writecmd(const u_char * buf, int len, int user, isdnloop_card * card)
|
| 969 |
|
|
{
|
| 970 |
|
|
int xcount = 0;
|
| 971 |
|
|
int ocount = 1;
|
| 972 |
|
|
isdn_ctrl cmd;
|
| 973 |
|
|
|
| 974 |
|
|
while (len) {
|
| 975 |
|
|
int count = len;
|
| 976 |
|
|
u_char *p;
|
| 977 |
|
|
u_char msg[0x100];
|
| 978 |
|
|
|
| 979 |
|
|
if (count > 255)
|
| 980 |
|
|
count = 255;
|
| 981 |
|
|
if (user) {
|
| 982 |
|
|
if (copy_from_user(msg, buf, count))
|
| 983 |
|
|
return -EFAULT;
|
| 984 |
|
|
} else
|
| 985 |
|
|
memcpy(msg, buf, count);
|
| 986 |
|
|
isdnloop_putmsg(card, '>');
|
| 987 |
|
|
for (p = msg; count > 0; count--, p++) {
|
| 988 |
|
|
len--;
|
| 989 |
|
|
xcount++;
|
| 990 |
|
|
isdnloop_putmsg(card, *p);
|
| 991 |
|
|
card->omsg[card->optr] = *p;
|
| 992 |
|
|
if (*p == '\n') {
|
| 993 |
|
|
card->omsg[card->optr] = '\0';
|
| 994 |
|
|
card->optr = 0;
|
| 995 |
|
|
isdnloop_parse_cmd(card);
|
| 996 |
|
|
if (len) {
|
| 997 |
|
|
isdnloop_putmsg(card, '>');
|
| 998 |
|
|
ocount++;
|
| 999 |
|
|
}
|
| 1000 |
|
|
} else {
|
| 1001 |
|
|
if (card->optr < 59)
|
| 1002 |
|
|
card->optr++;
|
| 1003 |
|
|
}
|
| 1004 |
|
|
ocount++;
|
| 1005 |
|
|
}
|
| 1006 |
|
|
}
|
| 1007 |
|
|
cmd.command = ISDN_STAT_STAVAIL;
|
| 1008 |
|
|
cmd.driver = card->myid;
|
| 1009 |
|
|
cmd.arg = ocount;
|
| 1010 |
|
|
card->interface.statcallb(&cmd);
|
| 1011 |
|
|
return xcount;
|
| 1012 |
|
|
}
|
| 1013 |
|
|
|
| 1014 |
|
|
/*
|
| 1015 |
|
|
* Delete card's pending timers, send STOP to linklevel
|
| 1016 |
|
|
*/
|
| 1017 |
|
|
static void
|
| 1018 |
|
|
isdnloop_stopcard(isdnloop_card * card)
|
| 1019 |
|
|
{
|
| 1020 |
|
|
unsigned long flags;
|
| 1021 |
|
|
isdn_ctrl cmd;
|
| 1022 |
|
|
|
| 1023 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 1024 |
|
|
if (card->flags & ISDNLOOP_FLAGS_RUNNING) {
|
| 1025 |
|
|
card->flags &= ~ISDNLOOP_FLAGS_RUNNING;
|
| 1026 |
|
|
del_timer(&card->st_timer);
|
| 1027 |
|
|
del_timer(&card->rb_timer);
|
| 1028 |
|
|
del_timer(&card->c_timer[0]);
|
| 1029 |
|
|
del_timer(&card->c_timer[1]);
|
| 1030 |
|
|
cmd.command = ISDN_STAT_STOP;
|
| 1031 |
|
|
cmd.driver = card->myid;
|
| 1032 |
|
|
card->interface.statcallb(&cmd);
|
| 1033 |
|
|
}
|
| 1034 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1035 |
|
|
}
|
| 1036 |
|
|
|
| 1037 |
|
|
/*
|
| 1038 |
|
|
* Stop all cards before unload.
|
| 1039 |
|
|
*/
|
| 1040 |
|
|
static void
|
| 1041 |
|
|
isdnloop_stopallcards(void)
|
| 1042 |
|
|
{
|
| 1043 |
|
|
isdnloop_card *p = cards;
|
| 1044 |
|
|
|
| 1045 |
|
|
while (p) {
|
| 1046 |
|
|
isdnloop_stopcard(p);
|
| 1047 |
|
|
p = p->next;
|
| 1048 |
|
|
}
|
| 1049 |
|
|
}
|
| 1050 |
|
|
|
| 1051 |
|
|
/*
|
| 1052 |
|
|
* Start a 'card'. Simulate card's boot message and set the phone
|
| 1053 |
|
|
* number(s) of the virtual 'S0-Interface'. Install D-channel
|
| 1054 |
|
|
* poll timer.
|
| 1055 |
|
|
*
|
| 1056 |
|
|
* Parameter:
|
| 1057 |
|
|
* card = pointer to card struct.
|
| 1058 |
|
|
* sdefp = pointer to struct holding ioctl parameters.
|
| 1059 |
|
|
* Return:
|
| 1060 |
|
|
* 0 on success, -E??? otherwise.
|
| 1061 |
|
|
*/
|
| 1062 |
|
|
static int
|
| 1063 |
|
|
isdnloop_start(isdnloop_card * card, isdnloop_sdef * sdefp)
|
| 1064 |
|
|
{
|
| 1065 |
|
|
unsigned long flags;
|
| 1066 |
|
|
isdnloop_sdef sdef;
|
| 1067 |
|
|
int i;
|
| 1068 |
|
|
|
| 1069 |
|
|
if (card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1070 |
|
|
return -EBUSY;
|
| 1071 |
|
|
if (copy_from_user((char *) &sdef, (char *) sdefp, sizeof(sdef)))
|
| 1072 |
|
|
return -EFAULT;
|
| 1073 |
|
|
spin_lock_irqsave(&card->isdnloop_lock, flags);
|
| 1074 |
|
|
switch (sdef.ptype) {
|
| 1075 |
|
|
case ISDN_PTYPE_EURO:
|
| 1076 |
|
|
if (isdnloop_fake(card, "DRV1.23EC-Q.931-CAPI-CNS-BASIS-20.02.96",
|
| 1077 |
|
|
-1)) {
|
| 1078 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1079 |
|
|
return -ENOMEM;
|
| 1080 |
|
|
}
|
| 1081 |
|
|
card->sil[0] = card->sil[1] = 4;
|
| 1082 |
|
|
if (isdnloop_fake(card, "TEI OK", 0)) {
|
| 1083 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1084 |
|
|
return -ENOMEM;
|
| 1085 |
|
|
}
|
| 1086 |
|
|
for (i = 0; i < 3; i++)
|
| 1087 |
|
|
strcpy(card->s0num[i], sdef.num[i]);
|
| 1088 |
|
|
break;
|
| 1089 |
|
|
case ISDN_PTYPE_1TR6:
|
| 1090 |
|
|
if (isdnloop_fake(card, "DRV1.04TC-1TR6-CAPI-CNS-BASIS-29.11.95",
|
| 1091 |
|
|
-1)) {
|
| 1092 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1093 |
|
|
return -ENOMEM;
|
| 1094 |
|
|
}
|
| 1095 |
|
|
card->sil[0] = card->sil[1] = 4;
|
| 1096 |
|
|
if (isdnloop_fake(card, "TEI OK", 0)) {
|
| 1097 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1098 |
|
|
return -ENOMEM;
|
| 1099 |
|
|
}
|
| 1100 |
|
|
strcpy(card->s0num[0], sdef.num[0]);
|
| 1101 |
|
|
card->s0num[1][0] = '\0';
|
| 1102 |
|
|
card->s0num[2][0] = '\0';
|
| 1103 |
|
|
break;
|
| 1104 |
|
|
default:
|
| 1105 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1106 |
|
|
printk(KERN_WARNING "isdnloop: Illegal D-channel protocol %d\n",
|
| 1107 |
|
|
sdef.ptype);
|
| 1108 |
|
|
return -EINVAL;
|
| 1109 |
|
|
}
|
| 1110 |
|
|
init_timer(&card->st_timer);
|
| 1111 |
|
|
card->st_timer.expires = jiffies + ISDNLOOP_TIMER_DCREAD;
|
| 1112 |
|
|
card->st_timer.function = isdnloop_polldchan;
|
| 1113 |
|
|
card->st_timer.data = (unsigned long) card;
|
| 1114 |
|
|
add_timer(&card->st_timer);
|
| 1115 |
|
|
card->flags |= ISDNLOOP_FLAGS_RUNNING;
|
| 1116 |
|
|
spin_unlock_irqrestore(&card->isdnloop_lock, flags);
|
| 1117 |
|
|
return 0;
|
| 1118 |
|
|
}
|
| 1119 |
|
|
|
| 1120 |
|
|
/*
|
| 1121 |
|
|
* Main handler for commands sent by linklevel.
|
| 1122 |
|
|
*/
|
| 1123 |
|
|
static int
|
| 1124 |
|
|
isdnloop_command(isdn_ctrl * c, isdnloop_card * card)
|
| 1125 |
|
|
{
|
| 1126 |
|
|
ulong a;
|
| 1127 |
|
|
int i;
|
| 1128 |
|
|
char cbuf[60];
|
| 1129 |
|
|
isdn_ctrl cmd;
|
| 1130 |
|
|
isdnloop_cdef cdef;
|
| 1131 |
|
|
|
| 1132 |
|
|
switch (c->command) {
|
| 1133 |
|
|
case ISDN_CMD_IOCTL:
|
| 1134 |
|
|
memcpy(&a, c->parm.num, sizeof(ulong));
|
| 1135 |
|
|
switch (c->arg) {
|
| 1136 |
|
|
case ISDNLOOP_IOCTL_DEBUGVAR:
|
| 1137 |
|
|
return (ulong) card;
|
| 1138 |
|
|
case ISDNLOOP_IOCTL_STARTUP:
|
| 1139 |
|
|
if (!access_ok(VERIFY_READ, (void *) a, sizeof(isdnloop_sdef)))
|
| 1140 |
|
|
return -EFAULT;
|
| 1141 |
|
|
return (isdnloop_start(card, (isdnloop_sdef *) a));
|
| 1142 |
|
|
break;
|
| 1143 |
|
|
case ISDNLOOP_IOCTL_ADDCARD:
|
| 1144 |
|
|
if (copy_from_user((char *)&cdef,
|
| 1145 |
|
|
(char *)a,
|
| 1146 |
|
|
sizeof(cdef)))
|
| 1147 |
|
|
return -EFAULT;
|
| 1148 |
|
|
return (isdnloop_addcard(cdef.id1));
|
| 1149 |
|
|
break;
|
| 1150 |
|
|
case ISDNLOOP_IOCTL_LEASEDCFG:
|
| 1151 |
|
|
if (a) {
|
| 1152 |
|
|
if (!card->leased) {
|
| 1153 |
|
|
card->leased = 1;
|
| 1154 |
|
|
while (card->ptype == ISDN_PTYPE_UNKNOWN)
|
| 1155 |
|
|
schedule_timeout_interruptible(10);
|
| 1156 |
|
|
schedule_timeout_interruptible(10);
|
| 1157 |
|
|
sprintf(cbuf, "00;FV2ON\n01;EAZ1\n02;EAZ2\n");
|
| 1158 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1159 |
|
|
printk(KERN_INFO
|
| 1160 |
|
|
"isdnloop: (%s) Leased-line mode enabled\n",
|
| 1161 |
|
|
CID);
|
| 1162 |
|
|
cmd.command = ISDN_STAT_RUN;
|
| 1163 |
|
|
cmd.driver = card->myid;
|
| 1164 |
|
|
cmd.arg = 0;
|
| 1165 |
|
|
card->interface.statcallb(&cmd);
|
| 1166 |
|
|
}
|
| 1167 |
|
|
} else {
|
| 1168 |
|
|
if (card->leased) {
|
| 1169 |
|
|
card->leased = 0;
|
| 1170 |
|
|
sprintf(cbuf, "00;FV2OFF\n");
|
| 1171 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1172 |
|
|
printk(KERN_INFO
|
| 1173 |
|
|
"isdnloop: (%s) Leased-line mode disabled\n",
|
| 1174 |
|
|
CID);
|
| 1175 |
|
|
cmd.command = ISDN_STAT_RUN;
|
| 1176 |
|
|
cmd.driver = card->myid;
|
| 1177 |
|
|
cmd.arg = 0;
|
| 1178 |
|
|
card->interface.statcallb(&cmd);
|
| 1179 |
|
|
}
|
| 1180 |
|
|
}
|
| 1181 |
|
|
return 0;
|
| 1182 |
|
|
default:
|
| 1183 |
|
|
return -EINVAL;
|
| 1184 |
|
|
}
|
| 1185 |
|
|
break;
|
| 1186 |
|
|
case ISDN_CMD_DIAL:
|
| 1187 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1188 |
|
|
return -ENODEV;
|
| 1189 |
|
|
if (card->leased)
|
| 1190 |
|
|
break;
|
| 1191 |
|
|
if ((c->arg & 255) < ISDNLOOP_BCH) {
|
| 1192 |
|
|
char *p;
|
| 1193 |
|
|
char dial[50];
|
| 1194 |
|
|
char dcode[4];
|
| 1195 |
|
|
|
| 1196 |
|
|
a = c->arg;
|
| 1197 |
|
|
p = c->parm.setup.phone;
|
| 1198 |
|
|
if (*p == 's' || *p == 'S') {
|
| 1199 |
|
|
/* Dial for SPV */
|
| 1200 |
|
|
p++;
|
| 1201 |
|
|
strcpy(dcode, "SCA");
|
| 1202 |
|
|
} else
|
| 1203 |
|
|
/* Normal Dial */
|
| 1204 |
|
|
strcpy(dcode, "CAL");
|
| 1205 |
|
|
strcpy(dial, p);
|
| 1206 |
|
|
sprintf(cbuf, "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1),
|
| 1207 |
|
|
dcode, dial, c->parm.setup.si1,
|
| 1208 |
|
|
c->parm.setup.si2, c->parm.setup.eazmsn);
|
| 1209 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1210 |
|
|
}
|
| 1211 |
|
|
break;
|
| 1212 |
|
|
case ISDN_CMD_ACCEPTD:
|
| 1213 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1214 |
|
|
return -ENODEV;
|
| 1215 |
|
|
if (c->arg < ISDNLOOP_BCH) {
|
| 1216 |
|
|
a = c->arg + 1;
|
| 1217 |
|
|
cbuf[0] = 0;
|
| 1218 |
|
|
switch (card->l2_proto[a - 1]) {
|
| 1219 |
|
|
case ISDN_PROTO_L2_X75I:
|
| 1220 |
|
|
sprintf(cbuf, "%02d;BX75\n", (int) a);
|
| 1221 |
|
|
break;
|
| 1222 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1223 |
|
|
case ISDN_PROTO_L2_X25DTE:
|
| 1224 |
|
|
sprintf(cbuf, "%02d;BX2T\n", (int) a);
|
| 1225 |
|
|
break;
|
| 1226 |
|
|
case ISDN_PROTO_L2_X25DCE:
|
| 1227 |
|
|
sprintf(cbuf, "%02d;BX2C\n", (int) a);
|
| 1228 |
|
|
break;
|
| 1229 |
|
|
#endif
|
| 1230 |
|
|
case ISDN_PROTO_L2_HDLC:
|
| 1231 |
|
|
sprintf(cbuf, "%02d;BTRA\n", (int) a);
|
| 1232 |
|
|
break;
|
| 1233 |
|
|
}
|
| 1234 |
|
|
if (strlen(cbuf))
|
| 1235 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1236 |
|
|
sprintf(cbuf, "%02d;DCON_R\n", (int) a);
|
| 1237 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1238 |
|
|
}
|
| 1239 |
|
|
break;
|
| 1240 |
|
|
case ISDN_CMD_ACCEPTB:
|
| 1241 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1242 |
|
|
return -ENODEV;
|
| 1243 |
|
|
if (c->arg < ISDNLOOP_BCH) {
|
| 1244 |
|
|
a = c->arg + 1;
|
| 1245 |
|
|
switch (card->l2_proto[a - 1]) {
|
| 1246 |
|
|
case ISDN_PROTO_L2_X75I:
|
| 1247 |
|
|
sprintf(cbuf, "%02d;BCON_R,BX75\n", (int) a);
|
| 1248 |
|
|
break;
|
| 1249 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1250 |
|
|
case ISDN_PROTO_L2_X25DTE:
|
| 1251 |
|
|
sprintf(cbuf, "%02d;BCON_R,BX2T\n", (int) a);
|
| 1252 |
|
|
break;
|
| 1253 |
|
|
case ISDN_PROTO_L2_X25DCE:
|
| 1254 |
|
|
sprintf(cbuf, "%02d;BCON_R,BX2C\n", (int) a);
|
| 1255 |
|
|
break;
|
| 1256 |
|
|
#endif
|
| 1257 |
|
|
case ISDN_PROTO_L2_HDLC:
|
| 1258 |
|
|
sprintf(cbuf, "%02d;BCON_R,BTRA\n", (int) a);
|
| 1259 |
|
|
break;
|
| 1260 |
|
|
default:
|
| 1261 |
|
|
sprintf(cbuf, "%02d;BCON_R\n", (int) a);
|
| 1262 |
|
|
}
|
| 1263 |
|
|
printk(KERN_DEBUG "isdnloop writecmd '%s'\n", cbuf);
|
| 1264 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1265 |
|
|
break;
|
| 1266 |
|
|
case ISDN_CMD_HANGUP:
|
| 1267 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1268 |
|
|
return -ENODEV;
|
| 1269 |
|
|
if (c->arg < ISDNLOOP_BCH) {
|
| 1270 |
|
|
a = c->arg + 1;
|
| 1271 |
|
|
sprintf(cbuf, "%02d;BDIS_R\n%02d;DDIS_R\n", (int) a, (int) a);
|
| 1272 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1273 |
|
|
}
|
| 1274 |
|
|
break;
|
| 1275 |
|
|
case ISDN_CMD_SETEAZ:
|
| 1276 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1277 |
|
|
return -ENODEV;
|
| 1278 |
|
|
if (card->leased)
|
| 1279 |
|
|
break;
|
| 1280 |
|
|
if (c->arg < ISDNLOOP_BCH) {
|
| 1281 |
|
|
a = c->arg + 1;
|
| 1282 |
|
|
if (card->ptype == ISDN_PTYPE_EURO) {
|
| 1283 |
|
|
sprintf(cbuf, "%02d;MS%s%s\n", (int) a,
|
| 1284 |
|
|
c->parm.num[0] ? "N" : "ALL", c->parm.num);
|
| 1285 |
|
|
} else
|
| 1286 |
|
|
sprintf(cbuf, "%02d;EAZ%s\n", (int) a,
|
| 1287 |
|
|
c->parm.num[0] ? c->parm.num : (u_char *) "0123456789");
|
| 1288 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1289 |
|
|
}
|
| 1290 |
|
|
break;
|
| 1291 |
|
|
case ISDN_CMD_CLREAZ:
|
| 1292 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1293 |
|
|
return -ENODEV;
|
| 1294 |
|
|
if (card->leased)
|
| 1295 |
|
|
break;
|
| 1296 |
|
|
if (c->arg < ISDNLOOP_BCH) {
|
| 1297 |
|
|
a = c->arg + 1;
|
| 1298 |
|
|
if (card->ptype == ISDN_PTYPE_EURO)
|
| 1299 |
|
|
sprintf(cbuf, "%02d;MSNC\n", (int) a);
|
| 1300 |
|
|
else
|
| 1301 |
|
|
sprintf(cbuf, "%02d;EAZC\n", (int) a);
|
| 1302 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1303 |
|
|
}
|
| 1304 |
|
|
break;
|
| 1305 |
|
|
case ISDN_CMD_SETL2:
|
| 1306 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1307 |
|
|
return -ENODEV;
|
| 1308 |
|
|
if ((c->arg & 255) < ISDNLOOP_BCH) {
|
| 1309 |
|
|
a = c->arg;
|
| 1310 |
|
|
switch (a >> 8) {
|
| 1311 |
|
|
case ISDN_PROTO_L2_X75I:
|
| 1312 |
|
|
sprintf(cbuf, "%02d;BX75\n", (int) (a & 255) + 1);
|
| 1313 |
|
|
break;
|
| 1314 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1315 |
|
|
case ISDN_PROTO_L2_X25DTE:
|
| 1316 |
|
|
sprintf(cbuf, "%02d;BX2T\n", (int) (a & 255) + 1);
|
| 1317 |
|
|
break;
|
| 1318 |
|
|
case ISDN_PROTO_L2_X25DCE:
|
| 1319 |
|
|
sprintf(cbuf, "%02d;BX2C\n", (int) (a & 255) + 1);
|
| 1320 |
|
|
break;
|
| 1321 |
|
|
#endif
|
| 1322 |
|
|
case ISDN_PROTO_L2_HDLC:
|
| 1323 |
|
|
sprintf(cbuf, "%02d;BTRA\n", (int) (a & 255) + 1);
|
| 1324 |
|
|
break;
|
| 1325 |
|
|
case ISDN_PROTO_L2_TRANS:
|
| 1326 |
|
|
sprintf(cbuf, "%02d;BTRA\n", (int) (a & 255) + 1);
|
| 1327 |
|
|
break;
|
| 1328 |
|
|
default:
|
| 1329 |
|
|
return -EINVAL;
|
| 1330 |
|
|
}
|
| 1331 |
|
|
i = isdnloop_writecmd(cbuf, strlen(cbuf), 0, card);
|
| 1332 |
|
|
card->l2_proto[a & 255] = (a >> 8);
|
| 1333 |
|
|
}
|
| 1334 |
|
|
break;
|
| 1335 |
|
|
case ISDN_CMD_SETL3:
|
| 1336 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1337 |
|
|
return -ENODEV;
|
| 1338 |
|
|
return 0;
|
| 1339 |
|
|
default:
|
| 1340 |
|
|
return -EINVAL;
|
| 1341 |
|
|
}
|
| 1342 |
|
|
}
|
| 1343 |
|
|
return 0;
|
| 1344 |
|
|
}
|
| 1345 |
|
|
|
| 1346 |
|
|
/*
|
| 1347 |
|
|
* Find card with given driverId
|
| 1348 |
|
|
*/
|
| 1349 |
|
|
static inline isdnloop_card *
|
| 1350 |
|
|
isdnloop_findcard(int driverid)
|
| 1351 |
|
|
{
|
| 1352 |
|
|
isdnloop_card *p = cards;
|
| 1353 |
|
|
|
| 1354 |
|
|
while (p) {
|
| 1355 |
|
|
if (p->myid == driverid)
|
| 1356 |
|
|
return p;
|
| 1357 |
|
|
p = p->next;
|
| 1358 |
|
|
}
|
| 1359 |
|
|
return (isdnloop_card *) 0;
|
| 1360 |
|
|
}
|
| 1361 |
|
|
|
| 1362 |
|
|
/*
|
| 1363 |
|
|
* Wrapper functions for interface to linklevel
|
| 1364 |
|
|
*/
|
| 1365 |
|
|
static int
|
| 1366 |
|
|
if_command(isdn_ctrl * c)
|
| 1367 |
|
|
{
|
| 1368 |
|
|
isdnloop_card *card = isdnloop_findcard(c->driver);
|
| 1369 |
|
|
|
| 1370 |
|
|
if (card)
|
| 1371 |
|
|
return (isdnloop_command(c, card));
|
| 1372 |
|
|
printk(KERN_ERR
|
| 1373 |
|
|
"isdnloop: if_command called with invalid driverId!\n");
|
| 1374 |
|
|
return -ENODEV;
|
| 1375 |
|
|
}
|
| 1376 |
|
|
|
| 1377 |
|
|
static int
|
| 1378 |
|
|
if_writecmd(const u_char __user *buf, int len, int id, int channel)
|
| 1379 |
|
|
{
|
| 1380 |
|
|
isdnloop_card *card = isdnloop_findcard(id);
|
| 1381 |
|
|
|
| 1382 |
|
|
if (card) {
|
| 1383 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1384 |
|
|
return -ENODEV;
|
| 1385 |
|
|
return (isdnloop_writecmd(buf, len, 1, card));
|
| 1386 |
|
|
}
|
| 1387 |
|
|
printk(KERN_ERR
|
| 1388 |
|
|
"isdnloop: if_writecmd called with invalid driverId!\n");
|
| 1389 |
|
|
return -ENODEV;
|
| 1390 |
|
|
}
|
| 1391 |
|
|
|
| 1392 |
|
|
static int
|
| 1393 |
|
|
if_readstatus(u_char __user *buf, int len, int id, int channel)
|
| 1394 |
|
|
{
|
| 1395 |
|
|
isdnloop_card *card = isdnloop_findcard(id);
|
| 1396 |
|
|
|
| 1397 |
|
|
if (card) {
|
| 1398 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1399 |
|
|
return -ENODEV;
|
| 1400 |
|
|
return (isdnloop_readstatus(buf, len, card));
|
| 1401 |
|
|
}
|
| 1402 |
|
|
printk(KERN_ERR
|
| 1403 |
|
|
"isdnloop: if_readstatus called with invalid driverId!\n");
|
| 1404 |
|
|
return -ENODEV;
|
| 1405 |
|
|
}
|
| 1406 |
|
|
|
| 1407 |
|
|
static int
|
| 1408 |
|
|
if_sendbuf(int id, int channel, int ack, struct sk_buff *skb)
|
| 1409 |
|
|
{
|
| 1410 |
|
|
isdnloop_card *card = isdnloop_findcard(id);
|
| 1411 |
|
|
|
| 1412 |
|
|
if (card) {
|
| 1413 |
|
|
if (!card->flags & ISDNLOOP_FLAGS_RUNNING)
|
| 1414 |
|
|
return -ENODEV;
|
| 1415 |
|
|
/* ack request stored in skb scratch area */
|
| 1416 |
|
|
*(skb->head) = ack;
|
| 1417 |
|
|
return (isdnloop_sendbuf(channel, skb, card));
|
| 1418 |
|
|
}
|
| 1419 |
|
|
printk(KERN_ERR
|
| 1420 |
|
|
"isdnloop: if_sendbuf called with invalid driverId!\n");
|
| 1421 |
|
|
return -ENODEV;
|
| 1422 |
|
|
}
|
| 1423 |
|
|
|
| 1424 |
|
|
/*
|
| 1425 |
|
|
* Allocate a new card-struct, initialize it
|
| 1426 |
|
|
* link it into cards-list and register it at linklevel.
|
| 1427 |
|
|
*/
|
| 1428 |
|
|
static isdnloop_card *
|
| 1429 |
|
|
isdnloop_initcard(char *id)
|
| 1430 |
|
|
{
|
| 1431 |
|
|
isdnloop_card *card;
|
| 1432 |
|
|
int i;
|
| 1433 |
|
|
|
| 1434 |
|
|
if (!(card = kzalloc(sizeof(isdnloop_card), GFP_KERNEL))) {
|
| 1435 |
|
|
printk(KERN_WARNING
|
| 1436 |
|
|
"isdnloop: (%s) Could not allocate card-struct.\n", id);
|
| 1437 |
|
|
return (isdnloop_card *) 0;
|
| 1438 |
|
|
}
|
| 1439 |
|
|
card->interface.owner = THIS_MODULE;
|
| 1440 |
|
|
card->interface.channels = ISDNLOOP_BCH;
|
| 1441 |
|
|
card->interface.hl_hdrlen = 1; /* scratch area for storing ack flag*/
|
| 1442 |
|
|
card->interface.maxbufsize = 4000;
|
| 1443 |
|
|
card->interface.command = if_command;
|
| 1444 |
|
|
card->interface.writebuf_skb = if_sendbuf;
|
| 1445 |
|
|
card->interface.writecmd = if_writecmd;
|
| 1446 |
|
|
card->interface.readstat = if_readstatus;
|
| 1447 |
|
|
card->interface.features = ISDN_FEATURE_L2_X75I |
|
| 1448 |
|
|
#ifdef CONFIG_ISDN_X25
|
| 1449 |
|
|
ISDN_FEATURE_L2_X25DTE |
|
| 1450 |
|
|
ISDN_FEATURE_L2_X25DCE |
|
| 1451 |
|
|
#endif
|
| 1452 |
|
|
ISDN_FEATURE_L2_HDLC |
|
| 1453 |
|
|
ISDN_FEATURE_L3_TRANS |
|
| 1454 |
|
|
ISDN_FEATURE_P_UNKNOWN;
|
| 1455 |
|
|
card->ptype = ISDN_PTYPE_UNKNOWN;
|
| 1456 |
|
|
strlcpy(card->interface.id, id, sizeof(card->interface.id));
|
| 1457 |
|
|
card->msg_buf_write = card->msg_buf;
|
| 1458 |
|
|
card->msg_buf_read = card->msg_buf;
|
| 1459 |
|
|
card->msg_buf_end = &card->msg_buf[sizeof(card->msg_buf) - 1];
|
| 1460 |
|
|
for (i = 0; i < ISDNLOOP_BCH; i++) {
|
| 1461 |
|
|
card->l2_proto[i] = ISDN_PROTO_L2_X75I;
|
| 1462 |
|
|
skb_queue_head_init(&card->bqueue[i]);
|
| 1463 |
|
|
}
|
| 1464 |
|
|
skb_queue_head_init(&card->dqueue);
|
| 1465 |
|
|
spin_lock_init(&card->isdnloop_lock);
|
| 1466 |
|
|
card->next = cards;
|
| 1467 |
|
|
cards = card;
|
| 1468 |
|
|
if (!register_isdn(&card->interface)) {
|
| 1469 |
|
|
cards = cards->next;
|
| 1470 |
|
|
printk(KERN_WARNING
|
| 1471 |
|
|
"isdnloop: Unable to register %s\n", id);
|
| 1472 |
|
|
kfree(card);
|
| 1473 |
|
|
return (isdnloop_card *) 0;
|
| 1474 |
|
|
}
|
| 1475 |
|
|
card->myid = card->interface.channels;
|
| 1476 |
|
|
return card;
|
| 1477 |
|
|
}
|
| 1478 |
|
|
|
| 1479 |
|
|
static int
|
| 1480 |
|
|
isdnloop_addcard(char *id1)
|
| 1481 |
|
|
{
|
| 1482 |
|
|
isdnloop_card *card;
|
| 1483 |
|
|
|
| 1484 |
|
|
if (!(card = isdnloop_initcard(id1))) {
|
| 1485 |
|
|
return -EIO;
|
| 1486 |
|
|
}
|
| 1487 |
|
|
printk(KERN_INFO
|
| 1488 |
|
|
"isdnloop: (%s) virtual card added\n",
|
| 1489 |
|
|
card->interface.id);
|
| 1490 |
|
|
return 0;
|
| 1491 |
|
|
}
|
| 1492 |
|
|
|
| 1493 |
|
|
static int __init
|
| 1494 |
|
|
isdnloop_init(void)
|
| 1495 |
|
|
{
|
| 1496 |
|
|
char *p;
|
| 1497 |
|
|
char rev[10];
|
| 1498 |
|
|
|
| 1499 |
|
|
if ((p = strchr(revision, ':'))) {
|
| 1500 |
|
|
strcpy(rev, p + 1);
|
| 1501 |
|
|
p = strchr(rev, '$');
|
| 1502 |
|
|
*p = 0;
|
| 1503 |
|
|
} else
|
| 1504 |
|
|
strcpy(rev, " ??? ");
|
| 1505 |
|
|
printk(KERN_NOTICE "isdnloop-ISDN-driver Rev%s\n", rev);
|
| 1506 |
|
|
|
| 1507 |
|
|
if (isdnloop_id)
|
| 1508 |
|
|
return (isdnloop_addcard(isdnloop_id));
|
| 1509 |
|
|
|
| 1510 |
|
|
return 0;
|
| 1511 |
|
|
}
|
| 1512 |
|
|
|
| 1513 |
|
|
static void __exit
|
| 1514 |
|
|
isdnloop_exit(void)
|
| 1515 |
|
|
{
|
| 1516 |
|
|
isdn_ctrl cmd;
|
| 1517 |
|
|
isdnloop_card *card = cards;
|
| 1518 |
|
|
isdnloop_card *last;
|
| 1519 |
|
|
int i;
|
| 1520 |
|
|
|
| 1521 |
|
|
isdnloop_stopallcards();
|
| 1522 |
|
|
while (card) {
|
| 1523 |
|
|
cmd.command = ISDN_STAT_UNLOAD;
|
| 1524 |
|
|
cmd.driver = card->myid;
|
| 1525 |
|
|
card->interface.statcallb(&cmd);
|
| 1526 |
|
|
for (i = 0; i < ISDNLOOP_BCH; i++)
|
| 1527 |
|
|
isdnloop_free_queue(card, i);
|
| 1528 |
|
|
card = card->next;
|
| 1529 |
|
|
}
|
| 1530 |
|
|
card = cards;
|
| 1531 |
|
|
while (card) {
|
| 1532 |
|
|
last = card;
|
| 1533 |
|
|
skb_queue_purge(&card->dqueue);
|
| 1534 |
|
|
card = card->next;
|
| 1535 |
|
|
kfree(last);
|
| 1536 |
|
|
}
|
| 1537 |
|
|
printk(KERN_NOTICE "isdnloop-ISDN-driver unloaded\n");
|
| 1538 |
|
|
}
|
| 1539 |
|
|
|
| 1540 |
|
|
module_init(isdnloop_init);
|
| 1541 |
|
|
module_exit(isdnloop_exit);
|
