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-rw-r--r--drivers/isdn/divert/Makefile9
-rw-r--r--drivers/isdn/divert/divert_init.c83
-rw-r--r--drivers/isdn/divert/divert_procfs.c319
-rw-r--r--drivers/isdn/divert/isdn_divert.c861
-rw-r--r--drivers/isdn/divert/isdn_divert.h132
5 files changed, 1404 insertions, 0 deletions
diff --git a/drivers/isdn/divert/Makefile b/drivers/isdn/divert/Makefile
new file mode 100644
index 00000000000..dd4a202e0bc
--- /dev/null
+++ b/drivers/isdn/divert/Makefile
@@ -0,0 +1,9 @@
+# Makefile for the dss1_divert ISDN module
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_ISDN_DIVERSION) += dss1_divert.o
+
+# Multipart objects.
+
+dss1_divert-y := isdn_divert.o divert_procfs.o divert_init.o
diff --git a/drivers/isdn/divert/divert_init.c b/drivers/isdn/divert/divert_init.c
new file mode 100644
index 00000000000..434e684f5db
--- /dev/null
+++ b/drivers/isdn/divert/divert_init.c
@@ -0,0 +1,83 @@
+/* $Id divert_init.c,v 1.5.6.2 2001/01/24 22:18:17 kai Exp $
+ *
+ * Module init for DSS1 diversion services for i4l.
+ *
+ * Copyright 1999 by Werner Cornelius (werner@isdn4linux.de)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include "isdn_divert.h"
+
+MODULE_DESCRIPTION("ISDN4Linux: Call diversion support");
+MODULE_AUTHOR("Werner Cornelius");
+MODULE_LICENSE("GPL");
+
+/****************************************/
+/* structure containing interface to hl */
+/****************************************/
+isdn_divert_if divert_if =
+ { DIVERT_IF_MAGIC, /* magic value */
+ DIVERT_CMD_REG, /* register cmd */
+ ll_callback, /* callback routine from ll */
+ NULL, /* command still not specified */
+ NULL, /* drv_to_name */
+ NULL, /* name_to_drv */
+ };
+
+/*************************/
+/* Module interface code */
+/* no cmd line parms */
+/*************************/
+static int __init divert_init(void)
+{ int i;
+
+ if (divert_dev_init())
+ { printk(KERN_WARNING "dss1_divert: cannot install device, not loaded\n");
+ return(-EIO);
+ }
+ if ((i = DIVERT_REG_NAME(&divert_if)) != DIVERT_NO_ERR)
+ { divert_dev_deinit();
+ printk(KERN_WARNING "dss1_divert: error %d registering module, not loaded\n",i);
+ return(-EIO);
+ }
+ printk(KERN_INFO "dss1_divert module successfully installed\n");
+ return(0);
+}
+
+/**********************/
+/* Module deinit code */
+/**********************/
+static void __exit divert_exit(void)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&divert_lock, flags);
+ divert_if.cmd = DIVERT_CMD_REL; /* release */
+ if ((i = DIVERT_REG_NAME(&divert_if)) != DIVERT_NO_ERR)
+ { printk(KERN_WARNING "dss1_divert: error %d releasing module\n",i);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ return;
+ }
+ if (divert_dev_deinit())
+ { printk(KERN_WARNING "dss1_divert: device busy, remove cancelled\n");
+ spin_unlock_irqrestore(&divert_lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&divert_lock, flags);
+ deleterule(-1); /* delete all rules and free mem */
+ deleteprocs();
+ printk(KERN_INFO "dss1_divert module successfully removed \n");
+}
+
+module_init(divert_init);
+module_exit(divert_exit);
+
diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c
new file mode 100644
index 00000000000..e1f0d87de0e
--- /dev/null
+++ b/drivers/isdn/divert/divert_procfs.c
@@ -0,0 +1,319 @@
+/* $Id: divert_procfs.c,v 1.11.6.2 2001/09/23 22:24:36 kai Exp $
+ *
+ * Filesystem handling for the diversion supplementary services.
+ *
+ * Copyright 1998 by Werner Cornelius (werner@isdn4linux.de)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/poll.h>
+#include <linux/smp_lock.h>
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+#else
+#include <linux/fs.h>
+#endif
+#include <linux/isdnif.h>
+#include "isdn_divert.h"
+
+
+/*********************************/
+/* Variables for interface queue */
+/*********************************/
+ulong if_used = 0; /* number of interface users */
+static struct divert_info *divert_info_head = NULL; /* head of queue */
+static struct divert_info *divert_info_tail = NULL; /* pointer to last entry */
+static DEFINE_SPINLOCK(divert_info_lock);/* lock for queue */
+static wait_queue_head_t rd_queue;
+
+/*********************************/
+/* put an info buffer into queue */
+/*********************************/
+void
+put_info_buffer(char *cp)
+{
+ struct divert_info *ib;
+ unsigned long flags;
+
+ if (if_used <= 0)
+ return;
+ if (!cp)
+ return;
+ if (!*cp)
+ return;
+ if (!(ib = (struct divert_info *) kmalloc(sizeof(struct divert_info) + strlen(cp), GFP_ATOMIC)))
+ return; /* no memory */
+ strcpy(ib->info_start, cp); /* set output string */
+ ib->next = NULL;
+ spin_lock_irqsave( &divert_info_lock, flags );
+ ib->usage_cnt = if_used;
+ if (!divert_info_head)
+ divert_info_head = ib; /* new head */
+ else
+ divert_info_tail->next = ib; /* follows existing messages */
+ divert_info_tail = ib; /* new tail */
+
+ /* delete old entrys */
+ while (divert_info_head->next) {
+ if ((divert_info_head->usage_cnt <= 0) &&
+ (divert_info_head->next->usage_cnt <= 0)) {
+ ib = divert_info_head;
+ divert_info_head = divert_info_head->next;
+ kfree(ib);
+ } else
+ break;
+ } /* divert_info_head->next */
+ spin_unlock_irqrestore( &divert_info_lock, flags );
+ wake_up_interruptible(&(rd_queue));
+} /* put_info_buffer */
+
+/**********************************/
+/* deflection device read routine */
+/**********************************/
+static ssize_t
+isdn_divert_read(struct file *file, char __user *buf, size_t count, loff_t * off)
+{
+ struct divert_info *inf;
+ int len;
+
+ if (!*((struct divert_info **) file->private_data)) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+ interruptible_sleep_on(&(rd_queue));
+ }
+ if (!(inf = *((struct divert_info **) file->private_data)))
+ return (0);
+
+ inf->usage_cnt--; /* new usage count */
+ file->private_data = &inf->next; /* next structure */
+ if ((len = strlen(inf->info_start)) <= count) {
+ if (copy_to_user(buf, inf->info_start, len))
+ return -EFAULT;
+ *off += len;
+ return (len);
+ }
+ return (0);
+} /* isdn_divert_read */
+
+/**********************************/
+/* deflection device write routine */
+/**********************************/
+static ssize_t
+isdn_divert_write(struct file *file, const char __user *buf, size_t count, loff_t * off)
+{
+ return (-ENODEV);
+} /* isdn_divert_write */
+
+
+/***************************************/
+/* select routines for various kernels */
+/***************************************/
+static unsigned int
+isdn_divert_poll(struct file *file, poll_table * wait)
+{
+ unsigned int mask = 0;
+
+ poll_wait(file, &(rd_queue), wait);
+ /* mask = POLLOUT | POLLWRNORM; */
+ if (*((struct divert_info **) file->private_data)) {
+ mask |= POLLIN | POLLRDNORM;
+ }
+ return mask;
+} /* isdn_divert_poll */
+
+/****************/
+/* Open routine */
+/****************/
+static int
+isdn_divert_open(struct inode *ino, struct file *filep)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave( &divert_info_lock, flags );
+ if_used++;
+ if (divert_info_head)
+ filep->private_data = &(divert_info_tail->next);
+ else
+ filep->private_data = &divert_info_head;
+ spin_unlock_irqrestore( &divert_info_lock, flags );
+ /* start_divert(); */
+ return nonseekable_open(ino, filep);
+} /* isdn_divert_open */
+
+/*******************/
+/* close routine */
+/*******************/
+static int
+isdn_divert_close(struct inode *ino, struct file *filep)
+{
+ struct divert_info *inf;
+ unsigned long flags;
+
+ spin_lock_irqsave( &divert_info_lock, flags );
+ if_used--;
+ inf = *((struct divert_info **) filep->private_data);
+ while (inf) {
+ inf->usage_cnt--;
+ inf = inf->next;
+ }
+ if (if_used <= 0)
+ while (divert_info_head) {
+ inf = divert_info_head;
+ divert_info_head = divert_info_head->next;
+ kfree(inf);
+ }
+ spin_unlock_irqrestore( &divert_info_lock, flags );
+ return (0);
+} /* isdn_divert_close */
+
+/*********/
+/* IOCTL */
+/*********/
+static int
+isdn_divert_ioctl(struct inode *inode, struct file *file,
+ uint cmd, ulong arg)
+{
+ divert_ioctl dioctl;
+ int i;
+ unsigned long flags;
+ divert_rule *rulep;
+ char *cp;
+
+ if (copy_from_user(&dioctl, (void __user *) arg, sizeof(dioctl)))
+ return -EFAULT;
+
+ switch (cmd) {
+ case IIOCGETVER:
+ dioctl.drv_version = DIVERT_IIOC_VERSION; /* set version */
+ break;
+
+ case IIOCGETDRV:
+ if ((dioctl.getid.drvid = divert_if.name_to_drv(dioctl.getid.drvnam)) < 0)
+ return (-EINVAL);
+ break;
+
+ case IIOCGETNAM:
+ cp = divert_if.drv_to_name(dioctl.getid.drvid);
+ if (!cp)
+ return (-EINVAL);
+ if (!*cp)
+ return (-EINVAL);
+ strcpy(dioctl.getid.drvnam, cp);
+ break;
+
+ case IIOCGETRULE:
+ if (!(rulep = getruleptr(dioctl.getsetrule.ruleidx)))
+ return (-EINVAL);
+ dioctl.getsetrule.rule = *rulep; /* copy data */
+ break;
+
+ case IIOCMODRULE:
+ if (!(rulep = getruleptr(dioctl.getsetrule.ruleidx)))
+ return (-EINVAL);
+ spin_lock_irqsave(&divert_lock, flags);
+ *rulep = dioctl.getsetrule.rule; /* copy data */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ return (0); /* no copy required */
+ break;
+
+ case IIOCINSRULE:
+ return (insertrule(dioctl.getsetrule.ruleidx, &dioctl.getsetrule.rule));
+ break;
+
+ case IIOCDELRULE:
+ return (deleterule(dioctl.getsetrule.ruleidx));
+ break;
+
+ case IIOCDODFACT:
+ return (deflect_extern_action(dioctl.fwd_ctrl.subcmd,
+ dioctl.fwd_ctrl.callid,
+ dioctl.fwd_ctrl.to_nr));
+
+ case IIOCDOCFACT:
+ case IIOCDOCFDIS:
+ case IIOCDOCFINT:
+ if (!divert_if.drv_to_name(dioctl.cf_ctrl.drvid))
+ return (-EINVAL); /* invalid driver */
+ if ((i = cf_command(dioctl.cf_ctrl.drvid,
+ (cmd == IIOCDOCFACT) ? 1 : (cmd == IIOCDOCFDIS) ? 0 : 2,
+ dioctl.cf_ctrl.cfproc,
+ dioctl.cf_ctrl.msn,
+ dioctl.cf_ctrl.service,
+ dioctl.cf_ctrl.fwd_nr,
+ &dioctl.cf_ctrl.procid)))
+ return (i);
+ break;
+
+ default:
+ return (-EINVAL);
+ } /* switch cmd */
+ return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0;
+} /* isdn_divert_ioctl */
+
+
+#ifdef CONFIG_PROC_FS
+static struct file_operations isdn_fops =
+{
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = isdn_divert_read,
+ .write = isdn_divert_write,
+ .poll = isdn_divert_poll,
+ .ioctl = isdn_divert_ioctl,
+ .open = isdn_divert_open,
+ .release = isdn_divert_close,
+};
+
+/****************************/
+/* isdn subdir in /proc/net */
+/****************************/
+static struct proc_dir_entry *isdn_proc_entry = NULL;
+static struct proc_dir_entry *isdn_divert_entry = NULL;
+#endif /* CONFIG_PROC_FS */
+
+/***************************************************************************/
+/* divert_dev_init must be called before the proc filesystem may be used */
+/***************************************************************************/
+int
+divert_dev_init(void)
+{
+
+ init_waitqueue_head(&rd_queue);
+
+#ifdef CONFIG_PROC_FS
+ isdn_proc_entry = create_proc_entry("isdn", S_IFDIR | S_IRUGO | S_IXUGO, proc_net);
+ if (!isdn_proc_entry)
+ return (-1);
+ isdn_divert_entry = create_proc_entry("divert", S_IFREG | S_IRUGO, isdn_proc_entry);
+ if (!isdn_divert_entry) {
+ remove_proc_entry("isdn", proc_net);
+ return (-1);
+ }
+ isdn_divert_entry->proc_fops = &isdn_fops;
+ isdn_divert_entry->owner = THIS_MODULE;
+#endif /* CONFIG_PROC_FS */
+
+ return (0);
+} /* divert_dev_init */
+
+/***************************************************************************/
+/* divert_dev_deinit must be called before leaving isdn when included as */
+/* a module. */
+/***************************************************************************/
+int
+divert_dev_deinit(void)
+{
+
+#ifdef CONFIG_PROC_FS
+ remove_proc_entry("divert", isdn_proc_entry);
+ remove_proc_entry("isdn", proc_net);
+#endif /* CONFIG_PROC_FS */
+
+ return (0);
+} /* divert_dev_deinit */
diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c
new file mode 100644
index 00000000000..1eb112213f0
--- /dev/null
+++ b/drivers/isdn/divert/isdn_divert.c
@@ -0,0 +1,861 @@
+/* $Id: isdn_divert.c,v 1.6.6.3 2001/09/23 22:24:36 kai Exp $
+ *
+ * DSS1 main diversion supplementary handling for i4l.
+ *
+ * Copyright 1999 by Werner Cornelius (werner@isdn4linux.de)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/proc_fs.h>
+
+#include "isdn_divert.h"
+
+/**********************************/
+/* structure keeping calling info */
+/**********************************/
+struct call_struc
+ { isdn_ctrl ics; /* delivered setup + driver parameters */
+ ulong divert_id; /* Id delivered to user */
+ unsigned char akt_state; /* actual state */
+ char deflect_dest[35]; /* deflection destination */
+ struct timer_list timer; /* timer control structure */
+ char info[90]; /* device info output */
+ struct call_struc *next; /* pointer to next entry */
+ struct call_struc *prev;
+ };
+
+
+/********************************************/
+/* structure keeping deflection table entry */
+/********************************************/
+struct deflect_struc
+ { struct deflect_struc *next,*prev;
+ divert_rule rule; /* used rule */
+ };
+
+
+/*****************************************/
+/* variables for main diversion services */
+/*****************************************/
+/* diversion/deflection processes */
+static struct call_struc *divert_head = NULL; /* head of remembered entrys */
+static ulong next_id = 1; /* next info id */
+static struct deflect_struc *table_head = NULL;
+static struct deflect_struc *table_tail = NULL;
+static unsigned char extern_wait_max = 4; /* maximum wait in s for external process */
+
+DEFINE_SPINLOCK(divert_lock);
+
+/***************************/
+/* timer callback function */
+/***************************/
+static void deflect_timer_expire(ulong arg)
+{
+ unsigned long flags;
+ struct call_struc *cs = (struct call_struc *) arg;
+
+ spin_lock_irqsave(&divert_lock, flags);
+ del_timer(&cs->timer); /* delete active timer */
+ spin_unlock_irqrestore(&divert_lock, flags);
+
+ switch(cs->akt_state)
+ { case DEFLECT_PROCEED:
+ cs->ics.command = ISDN_CMD_HANGUP; /* cancel action */
+ divert_if.ll_cmd(&cs->ics);
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ break;
+
+ case DEFLECT_ALERT:
+ cs->ics.command = ISDN_CMD_REDIR; /* protocol */
+ strcpy(cs->ics.parm.setup.phone,cs->deflect_dest);
+ strcpy(cs->ics.parm.setup.eazmsn,"Testtext delayed");
+ divert_if.ll_cmd(&cs->ics);
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ break;
+
+ case DEFLECT_AUTODEL:
+ default:
+ spin_lock_irqsave(&divert_lock, flags);
+ if (cs->prev)
+ cs->prev->next = cs->next; /* forward link */
+ else
+ divert_head = cs->next;
+ if (cs->next)
+ cs->next->prev = cs->prev; /* back link */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ kfree(cs);
+ return;
+
+ } /* switch */
+} /* deflect_timer_func */
+
+
+/*****************************************/
+/* handle call forwarding de/activations */
+/* 0 = deact, 1 = act, 2 = interrogate */
+/*****************************************/
+int cf_command(int drvid, int mode,
+ u_char proc, char *msn,
+ u_char service, char *fwd_nr, ulong *procid)
+{ unsigned long flags;
+ int retval,msnlen;
+ int fwd_len;
+ char *p,*ielenp,tmp[60];
+ struct call_struc *cs;
+
+ if (strchr(msn,'.')) return(-EINVAL); /* subaddress not allowed in msn */
+ if ((proc & 0x7F) > 2) return(-EINVAL);
+ proc &= 3;
+ p = tmp;
+ *p++ = 0x30; /* enumeration */
+ ielenp = p++; /* remember total length position */
+ *p++ = 0xa; /* proc tag */
+ *p++ = 1; /* length */
+ *p++ = proc & 0x7F; /* procedure to de/activate/interrogate */
+ *p++ = 0xa; /* service tag */
+ *p++ = 1; /* length */
+ *p++ = service; /* service to handle */
+
+ if (mode == 1)
+ { if (!*fwd_nr) return(-EINVAL); /* destination missing */
+ if (strchr(fwd_nr,'.')) return(-EINVAL); /* subaddress not allowed */
+ fwd_len = strlen(fwd_nr);
+ *p++ = 0x30; /* number enumeration */
+ *p++ = fwd_len + 2; /* complete forward to len */
+ *p++ = 0x80; /* fwd to nr */
+ *p++ = fwd_len; /* length of number */
+ strcpy(p,fwd_nr); /* copy number */
+ p += fwd_len; /* pointer beyond fwd */
+ } /* activate */
+
+ msnlen = strlen(msn);
+ *p++ = 0x80; /* msn number */
+ if (msnlen > 1)
+ { *p++ = msnlen; /* length */
+ strcpy(p,msn);
+ p += msnlen;
+ }
+ else *p++ = 0;
+
+ *ielenp = p - ielenp - 1; /* set total IE length */
+
+ /* allocate mem for information struct */
+ if (!(cs = (struct call_struc *) kmalloc(sizeof(struct call_struc), GFP_ATOMIC)))
+ return(-ENOMEM); /* no memory */
+ init_timer(&cs->timer);
+ cs->info[0] = '\0';
+ cs->timer.function = deflect_timer_expire;
+ cs->timer.data = (ulong) cs; /* pointer to own structure */
+ cs->ics.driver = drvid;
+ cs->ics.command = ISDN_CMD_PROT_IO; /* protocol specific io */
+ cs->ics.arg = DSS1_CMD_INVOKE; /* invoke supplementary service */
+ cs->ics.parm.dss1_io.proc = (mode == 1) ? 7: (mode == 2) ? 11:8; /* operation */
+ cs->ics.parm.dss1_io.timeout = 4000; /* from ETS 300 207-1 */
+ cs->ics.parm.dss1_io.datalen = p - tmp; /* total len */
+ cs->ics.parm.dss1_io.data = tmp; /* start of buffer */
+
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->ics.parm.dss1_io.ll_id = next_id++; /* id for callback */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ *procid = cs->ics.parm.dss1_io.ll_id;
+
+ sprintf(cs->info,"%d 0x%lx %s%s 0 %s %02x %d%s%s\n",
+ (!mode ) ? DIVERT_DEACTIVATE : (mode == 1) ? DIVERT_ACTIVATE : DIVERT_REPORT,
+ cs->ics.parm.dss1_io.ll_id,
+ (mode != 2) ? "" : "0 ",
+ divert_if.drv_to_name(cs->ics.driver),
+ msn,
+ service & 0xFF,
+ proc,
+ (mode != 1) ? "" : " 0 ",
+ (mode != 1) ? "" : fwd_nr);
+
+ retval = divert_if.ll_cmd(&cs->ics); /* excute command */
+
+ if (!retval)
+ { cs->prev = NULL;
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->next = divert_head;
+ divert_head = cs;
+ spin_unlock_irqrestore(&divert_lock, flags);
+ }
+ else
+ kfree(cs);
+ return(retval);
+} /* cf_command */
+
+
+/****************************************/
+/* handle a external deflection command */
+/****************************************/
+int deflect_extern_action(u_char cmd, ulong callid, char *to_nr)
+{ struct call_struc *cs;
+ isdn_ctrl ic;
+ unsigned long flags;
+ int i;
+
+ if ((cmd & 0x7F) > 2) return(-EINVAL); /* invalid command */
+ cs = divert_head; /* start of parameter list */
+ while (cs)
+ { if (cs->divert_id == callid) break; /* found */
+ cs = cs->next;
+ } /* search entry */
+ if (!cs) return(-EINVAL); /* invalid callid */
+
+ ic.driver = cs->ics.driver;
+ ic.arg = cs->ics.arg;
+ i = -EINVAL;
+ if (cs->akt_state == DEFLECT_AUTODEL) return(i); /* no valid call */
+ switch (cmd & 0x7F)
+ { case 0: /* hangup */
+ del_timer(&cs->timer);
+ ic.command = ISDN_CMD_HANGUP;
+ i = divert_if.ll_cmd(&ic);
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ break;
+
+ case 1: /* alert */
+ if (cs->akt_state == DEFLECT_ALERT) return(0);
+ cmd &= 0x7F; /* never wait */
+ del_timer(&cs->timer);
+ ic.command = ISDN_CMD_ALERT;
+ if ((i = divert_if.ll_cmd(&ic)))
+ {
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ }
+ else
+ cs->akt_state = DEFLECT_ALERT;
+ break;
+
+ case 2: /* redir */
+ del_timer(&cs->timer);
+ strcpy(cs->ics.parm.setup.phone, to_nr);
+ strcpy(cs->ics.parm.setup.eazmsn, "Testtext manual");
+ ic.command = ISDN_CMD_REDIR;
+ if ((i = divert_if.ll_cmd(&ic)))
+ {
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+ }
+ else
+ cs->akt_state = DEFLECT_ALERT;
+ break;
+
+ } /* switch */
+ return(i);
+} /* deflect_extern_action */
+
+/********************************/
+/* insert a new rule before idx */
+/********************************/
+int insertrule(int idx, divert_rule *newrule)
+{ struct deflect_struc *ds,*ds1=NULL;
+ unsigned long flags;
+
+ if (!(ds = (struct deflect_struc *) kmalloc(sizeof(struct deflect_struc),
+ GFP_KERNEL)))
+ return(-ENOMEM); /* no memory */
+
+ ds->rule = *newrule; /* set rule */
+
+ spin_lock_irqsave(&divert_lock, flags);
+
+ if (idx >= 0)
+ { ds1 = table_head;
+ while ((ds1) && (idx > 0))
+ { idx--;
+ ds1 = ds1->next;
+ }
+ if (!ds1) idx = -1;
+ }
+
+ if (idx < 0)
+ { ds->prev = table_tail; /* previous entry */
+ ds->next = NULL; /* end of chain */
+ if (ds->prev)
+ ds->prev->next = ds; /* last forward */
+ else
+ table_head = ds; /* is first entry */
+ table_tail = ds; /* end of queue */
+ }
+ else
+ { ds->next = ds1; /* next entry */
+ ds->prev = ds1->prev; /* prev entry */
+ ds1->prev = ds; /* backward chain old element */
+ if (!ds->prev)
+ table_head = ds; /* first element */
+ }
+
+ spin_unlock_irqrestore(&divert_lock, flags);
+ return(0);
+} /* insertrule */
+
+/***********************************/
+/* delete the rule at position idx */
+/***********************************/
+int deleterule(int idx)
+{ struct deflect_struc *ds,*ds1;
+ unsigned long flags;
+
+ if (idx < 0)
+ { spin_lock_irqsave(&divert_lock, flags);
+ ds = table_head;
+ table_head = NULL;
+ table_tail = NULL;
+ spin_unlock_irqrestore(&divert_lock, flags);
+ while (ds)
+ { ds1 = ds;
+ ds = ds->next;
+ kfree(ds1);
+ }
+ return(0);
+ }
+
+ spin_lock_irqsave(&divert_lock, flags);
+ ds = table_head;
+
+ while ((ds) && (idx > 0))
+ { idx--;
+ ds = ds->next;
+ }
+
+ if (!ds)
+ {
+ spin_unlock_irqrestore(&divert_lock, flags);
+ return(-EINVAL);
+ }
+
+ if (ds->next)
+ ds->next->prev = ds->prev; /* backward chain */
+ else
+ table_tail = ds->prev; /* end of chain */
+
+ if (ds->prev)
+ ds->prev->next = ds->next; /* forward chain */
+ else
+ table_head = ds->next; /* start of chain */
+
+ spin_unlock_irqrestore(&divert_lock, flags);
+ kfree(ds);
+ return(0);
+} /* deleterule */
+
+/*******************************************/
+/* get a pointer to a specific rule number */
+/*******************************************/
+divert_rule *getruleptr(int idx)
+{ struct deflect_struc *ds = table_head;
+
+ if (idx < 0) return(NULL);
+ while ((ds) && (idx >= 0))
+ { if (!(idx--))
+ { return(&ds->rule);
+ break;
+ }
+ ds = ds->next;
+ }
+ return(NULL);
+} /* getruleptr */
+
+/*************************************************/
+/* called from common module on an incoming call */
+/*************************************************/
+int isdn_divert_icall(isdn_ctrl *ic)
+{ int retval = 0;
+ unsigned long flags;
+ struct call_struc *cs = NULL;
+ struct deflect_struc *dv;
+ char *p,*p1;
+ u_char accept;
+
+ /* first check the internal deflection table */
+ for (dv = table_head; dv ; dv = dv->next )
+ { /* scan table */
+ if (((dv->rule.callopt == 1) && (ic->command == ISDN_STAT_ICALLW)) ||
+ ((dv->rule.callopt == 2) && (ic->command == ISDN_STAT_ICALL)))
+ continue; /* call option check */
+ if (!(dv->rule.drvid & (1L << ic->driver)))
+ continue; /* driver not matching */
+ if ((dv->rule.si1) && (dv->rule.si1 != ic->parm.setup.si1))
+ continue; /* si1 not matching */
+ if ((dv->rule.si2) && (dv->rule.si2 != ic->parm.setup.si2))
+ continue; /* si2 not matching */
+
+ p = dv->rule.my_msn;
+ p1 = ic->parm.setup.eazmsn;
+ accept = 0;
+ while (*p)
+ { /* complete compare */
+ if (*p == '-')
+ { accept = 1; /* call accepted */
+ break;
+ }
+ if (*p++ != *p1++)
+ break; /* not accepted */
+ if ((!*p) && (!*p1))
+ accept = 1;
+ } /* complete compare */
+ if (!accept) continue; /* not accepted */
+
+ if ((strcmp(dv->rule.caller,"0")) || (ic->parm.setup.phone[0]))
+ { p = dv->rule.caller;
+ p1 = ic->parm.setup.phone;
+ accept = 0;
+ while (*p)
+ { /* complete compare */
+ if (*p == '-')
+ { accept = 1; /* call accepted */
+ break;
+ }
+ if (*p++ != *p1++)
+ break; /* not accepted */
+ if ((!*p) && (!*p1))
+ accept = 1;
+ } /* complete compare */
+ if (!accept) continue; /* not accepted */
+ }
+
+ switch (dv->rule.action)
+ { case DEFLECT_IGNORE:
+ return(0);
+ break;
+
+ case DEFLECT_ALERT:
+ case DEFLECT_PROCEED:
+ case DEFLECT_REPORT:
+ case DEFLECT_REJECT:
+ if (dv->rule.action == DEFLECT_PROCEED)
+ if ((!if_used) || ((!extern_wait_max) && (!dv->rule.waittime)))
+ return(0); /* no external deflection needed */
+ if (!(cs = (struct call_struc *) kmalloc(sizeof(struct call_struc), GFP_ATOMIC)))
+ return(0); /* no memory */
+ init_timer(&cs->timer);
+ cs->info[0] = '\0';
+ cs->timer.function = deflect_timer_expire;
+ cs->timer.data = (ulong) cs; /* pointer to own structure */
+
+ cs->ics = *ic; /* copy incoming data */
+ if (!cs->ics.parm.setup.phone[0]) strcpy(cs->ics.parm.setup.phone,"0");
+ if (!cs->ics.parm.setup.eazmsn[0]) strcpy(cs->ics.parm.setup.eazmsn,"0");
+ cs->ics.parm.setup.screen = dv->rule.screen;
+ if (dv->rule.waittime)
+ cs->timer.expires = jiffies + (HZ * dv->rule.waittime);
+ else
+ if (dv->rule.action == DEFLECT_PROCEED)
+ cs->timer.expires = jiffies + (HZ * extern_wait_max);
+ else
+ cs->timer.expires = 0;
+ cs->akt_state = dv->rule.action;
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->divert_id = next_id++; /* new sequence number */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ cs->prev = NULL;
+ if (cs->akt_state == DEFLECT_ALERT)
+ { strcpy(cs->deflect_dest,dv->rule.to_nr);
+ if (!cs->timer.expires)
+ { strcpy(ic->parm.setup.eazmsn,"Testtext direct");
+ ic->parm.setup.screen = dv->rule.screen;
+ strcpy(ic->parm.setup.phone,dv->rule.to_nr);
+ cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */
+ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME);
+ retval = 5;
+ }
+ else
+ retval = 1; /* alerting */
+ }
+ else
+ { cs->deflect_dest[0] = '\0';
+ retval = 4; /* only proceed */
+ }
+ sprintf(cs->info,"%d 0x%lx %s %s %s %s 0x%x 0x%x %d %d %s\n",
+ cs->akt_state,
+ cs->divert_id,
+ divert_if.drv_to_name(cs->ics.driver),
+ (ic->command == ISDN_STAT_ICALLW) ? "1":"0",
+ cs->ics.parm.setup.phone,
+ cs->ics.parm.setup.eazmsn,
+ cs->ics.parm.setup.si1,
+ cs->ics.parm.setup.si2,
+ cs->ics.parm.setup.screen,
+ dv->rule.waittime,
+ cs->deflect_dest);
+ if ((dv->rule.action == DEFLECT_REPORT) ||
+ (dv->rule.action == DEFLECT_REJECT))
+ { put_info_buffer(cs->info);
+ kfree(cs); /* remove */
+ return((dv->rule.action == DEFLECT_REPORT) ? 0:2); /* nothing to do */
+ }
+ break;
+
+ default:
+ return(0); /* ignore call */
+ break;
+ } /* switch action */
+ break;
+ } /* scan_table */
+
+ if (cs)
+ { cs->prev = NULL;
+ spin_lock_irqsave(&divert_lock, flags);
+ cs->next = divert_head;
+ divert_head = cs;
+ if (cs->timer.expires) add_timer(&cs->timer);
+ spin_unlock_irqrestore(&divert_lock, flags);
+
+ put_info_buffer(cs->info);
+ return(retval);
+ }
+ else
+ return(0);
+} /* isdn_divert_icall */
+
+
+void deleteprocs(void)
+{ struct call_struc *cs, *cs1;
+ unsigned long flags;
+
+ spin_lock_irqsave(&divert_lock, flags);
+ cs = divert_head;
+ divert_head = NULL;
+ while (cs)
+ { del_timer(&cs->timer);
+ cs1 = cs;
+ cs = cs->next;
+ kfree(cs1);
+ }
+ spin_unlock_irqrestore(&divert_lock, flags);
+} /* deleteprocs */
+
+/****************************************************/
+/* put a address including address type into buffer */
+/****************************************************/
+int put_address(char *st, u_char *p, int len)
+{ u_char retval = 0;
+ u_char adr_typ = 0; /* network standard */
+
+ if (len < 2) return(retval);
+ if (*p == 0xA1)
+ { retval = *(++p) + 2; /* total length */
+ if (retval > len) return(0); /* too short */
+ len = retval - 2; /* remaining length */
+ if (len < 3) return(0);
+ if ((*(++p) != 0x0A) || (*(++p) != 1)) return(0);
+ adr_typ = *(++p);
+ len -= 3;
+ p++;
+ if (len < 2) return(0);
+ if (*p++ != 0x12) return(0);
+ if (*p > len) return(0); /* check number length */
+ len = *p++;
+ }
+ else
+ if (*p == 0x80)
+ { retval = *(++p) + 2; /* total length */
+ if (retval > len) return(0);
+ len = retval - 2;
+ p++;
+ }
+ else
+ return(0); /* invalid address information */
+
+ sprintf(st,"%d ",adr_typ);
+ st += strlen(st);
+ if (!len)
+ *st++ = '-';
+ else
+ while (len--)
+ *st++ = *p++;
+ *st = '\0';
+ return(retval);
+} /* put_address */
+
+/*************************************/
+/* report a succesfull interrogation */
+/*************************************/
+int interrogate_success(isdn_ctrl *ic, struct call_struc *cs)
+{ char *src = ic->parm.dss1_io.data;
+ int restlen = ic->parm.dss1_io.datalen;
+ int cnt = 1;
+ u_char n,n1;
+ char st[90], *p, *stp;
+
+ if (restlen < 2) return(-100); /* frame too short */
+ if (*src++ != 0x30) return(-101);
+ if ((n = *src++) > 0x81) return(-102); /* invalid length field */
+ restlen -= 2; /* remaining bytes */
+ if (n == 0x80)
+ { if (restlen < 2) return(-103);
+ if ((*(src+restlen-1)) || (*(src+restlen-2))) return(-104);
+ restlen -= 2;
+ }
+ else
+ if ( n == 0x81)
+ { n = *src++;
+ restlen--;
+ if (n > restlen) return(-105);
+ restlen = n;
+ }
+ else
+ if (n > restlen) return(-106);
+ else
+ restlen = n; /* standard format */
+ if (restlen < 3) return(-107); /* no procedure */
+ if ((*src++ != 2) || (*src++ != 1) || (*src++ != 0x0B)) return(-108);
+ restlen -= 3;
+ if (restlen < 2) return(-109); /* list missing */
+ if (*src == 0x31)
+ { src++;
+ if ((n = *src++) > 0x81) return(-110); /* invalid length field */
+ restlen -= 2; /* remaining bytes */
+ if (n == 0x80)
+ { if (restlen < 2) return(-111);
+ if ((*(src+restlen-1)) || (*(src+restlen-2))) return(-112);
+ restlen -= 2;
+ }
+ else
+ if ( n == 0x81)
+ { n = *src++;
+ restlen--;
+ if (n > restlen) return(-113);
+ restlen = n;
+ }
+ else
+ if (n > restlen) return(-114);
+ else
+ restlen = n; /* standard format */
+ } /* result list header */
+
+ while (restlen >= 2)
+ { stp = st;
+ sprintf(stp,"%d 0x%lx %d %s ",DIVERT_REPORT, ic->parm.dss1_io.ll_id,
+ cnt++,divert_if.drv_to_name(ic->driver));
+ stp += strlen(stp);
+ if (*src++ != 0x30) return(-115); /* invalid enum */
+ n = *src++;
+ restlen -= 2;
+ if (n > restlen) return(-116); /* enum length wrong */
+ restlen -= n;
+ p = src; /* one entry */
+ src += n;
+ if (!(n1 = put_address(stp,p,n & 0xFF))) continue;
+ stp += strlen(stp);
+ p += n1;
+ n -= n1;
+ if (n < 6) continue; /* no service and proc */
+ if ((*p++ != 0x0A) || (*p++ != 1)) continue;
+ sprintf(stp," 0x%02x ",(*p++) & 0xFF);
+ stp += strlen(stp);
+ if ((*p++ != 0x0A) || (*p++ != 1)) continue;
+ sprintf(stp,"%d ",(*p++) & 0xFF);
+ stp += strlen(stp);
+ n -= 6;
+ if (n > 2)
+ { if (*p++ != 0x30) continue;
+ if (*p > (n-2)) continue;
+ n = *p++;
+ if (!(n1 = put_address(stp,p,n & 0xFF))) continue;
+ stp += strlen(stp);
+ }
+ sprintf(stp,"\n");
+ put_info_buffer(st);
+ } /* while restlen */
+ if (restlen) return(-117);
+ return(0);
+} /* interrogate_success */
+
+/*********************************************/
+/* callback for protocol specific extensions */
+/*********************************************/
+int prot_stat_callback(isdn_ctrl *ic)
+{ struct call_struc *cs, *cs1;
+ int i;
+ unsigned long flags;
+
+ cs = divert_head; /* start of list */
+ cs1 = NULL;
+ while (cs)
+ { if (ic->driver == cs->ics.driver)
+ { switch (cs->ics.arg)
+ { case DSS1_CMD_INVOKE:
+ if ((cs->ics.parm.dss1_io.ll_id == ic->parm.dss1_io.ll_id) &&
+ (cs->ics.parm.dss1_io.hl_id == ic->parm.dss1_io.hl_id))
+ { switch (ic->arg)
+ { case DSS1_STAT_INVOKE_ERR:
+ sprintf(cs->info,"128 0x%lx 0x%x\n",
+ ic->parm.dss1_io.ll_id,
+ ic->parm.dss1_io.timeout);
+ put_info_buffer(cs->info);
+ break;
+
+ case DSS1_STAT_INVOKE_RES:
+ switch (cs->ics.parm.dss1_io.proc)
+ { case 7:
+ case 8:
+ put_info_buffer(cs->info);
+ break;
+
+ case 11:
+ i = interrogate_success(ic,cs);
+ if (i)
+ sprintf(cs->info,"%d 0x%lx %d\n",DIVERT_REPORT,
+ ic->parm.dss1_io.ll_id,i);
+ put_info_buffer(cs->info);
+ break;
+
+ default:
+ printk(KERN_WARNING "dss1_divert: unknown proc %d\n",cs->ics.parm.dss1_io.proc);
+ break;
+ }
+
+
+ break;
+
+ default:
+ printk(KERN_WARNING "dss1_divert unknown invoke answer %lx\n",ic->arg);
+ break;
+ }
+ cs1 = cs; /* remember structure */
+ cs = NULL;
+ continue; /* abort search */
+ } /* id found */
+ break;
+
+ case DSS1_CMD_INVOKE_ABORT:
+ printk(KERN_WARNING "dss1_divert unhandled invoke abort\n");
+ break;
+
+ default:
+ printk(KERN_WARNING "dss1_divert unknown cmd 0x%lx\n",cs->ics.arg);
+ break;
+ } /* switch ics.arg */
+ cs = cs->next;
+ } /* driver ok */
+ }
+
+ if (!cs1)
+ { printk(KERN_WARNING "dss1_divert unhandled process\n");
+ return(0);
+ }
+
+ if (cs1->ics.driver == -1)
+ {
+ spin_lock_irqsave(&divert_lock, flags);
+ del_timer(&cs1->timer);
+ if (cs1->prev)
+ cs1->prev->next = cs1->next; /* forward link */
+ else
+ divert_head = cs1->next;
+ if (cs1->next)
+ cs1->next->prev = cs1->prev; /* back link */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ kfree(cs1);
+ }
+
+ return(0);
+} /* prot_stat_callback */
+
+
+/***************************/
+/* status callback from HL */
+/***************************/
+int isdn_divert_stat_callback(isdn_ctrl *ic)
+{ struct call_struc *cs, *cs1;
+ unsigned long flags;
+ int retval;
+
+ retval = -1;
+ cs = divert_head; /* start of list */
+ while (cs)
+ { if ((ic->driver == cs->ics.driver) && (ic->arg == cs->ics.arg))
+ { switch (ic->command)
+ { case ISDN_STAT_DHUP:
+ sprintf(cs->info,"129 0x%lx\n",cs->divert_id);
+ del_timer(&cs->timer);
+ cs->ics.driver = -1;
+ break;
+
+ case ISDN_STAT_CAUSE:
+ sprintf(cs->info,"130 0x%lx %s\n",cs->divert_id,ic->parm.num);
+ break;
+
+ case ISDN_STAT_REDIR:
+ sprintf(cs->info,"131 0x%lx\n",cs->divert_id);
+ del_timer(&cs->timer);
+ cs->ics.driver = -1;
+ break;
+
+ default:
+ sprintf(cs->info,"999 0x%lx 0x%x\n",cs->divert_id,(int)(ic->command));
+ break;
+ }
+ put_info_buffer(cs->info);
+ retval = 0;
+ }
+ cs1 = cs;
+ cs = cs->next;
+ if (cs1->ics.driver == -1)
+ {
+ spin_lock_irqsave(&divert_lock, flags);
+ if (cs1->prev)
+ cs1->prev->next = cs1->next; /* forward link */
+ else
+ divert_head = cs1->next;
+ if (cs1->next)
+ cs1->next->prev = cs1->prev; /* back link */
+ spin_unlock_irqrestore(&divert_lock, flags);
+ kfree(cs1);
+ }
+ }
+ return(retval); /* not found */
+} /* isdn_divert_stat_callback */
+
+
+/********************/
+/* callback from ll */
+/********************/
+int ll_callback(isdn_ctrl *ic)
+{
+ switch (ic->command)
+ { case ISDN_STAT_ICALL:
+ case ISDN_STAT_ICALLW:
+ return(isdn_divert_icall(ic));
+ break;
+
+ case ISDN_STAT_PROT:
+ if ((ic->arg & 0xFF) == ISDN_PTYPE_EURO)
+ { if (ic->arg != DSS1_STAT_INVOKE_BRD)
+ return(prot_stat_callback(ic));
+ else
+ return(0); /* DSS1 invoke broadcast */
+ }
+ else
+ return(-1); /* protocol not euro */
+
+ default:
+ return(isdn_divert_stat_callback(ic));
+ }
+} /* ll_callback */
+
diff --git a/drivers/isdn/divert/isdn_divert.h b/drivers/isdn/divert/isdn_divert.h
new file mode 100644
index 00000000000..19439a6176a
--- /dev/null
+++ b/drivers/isdn/divert/isdn_divert.h
@@ -0,0 +1,132 @@
+/* $Id: isdn_divert.h,v 1.5.6.1 2001/09/23 22:24:36 kai Exp $
+ *
+ * Header for the diversion supplementary ioctl interface.
+ *
+ * Copyright 1998 by Werner Cornelius (werner@ikt.de)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/******************************************/
+/* IOCTL codes for interface to user prog */
+/******************************************/
+#define DIVERT_IIOC_VERSION 0x01 /* actual version */
+#define IIOCGETVER _IO('I', 1) /* get version of interface */
+#define IIOCGETDRV _IO('I', 2) /* get driver number */
+#define IIOCGETNAM _IO('I', 3) /* get driver name */
+#define IIOCGETRULE _IO('I', 4) /* read one rule */
+#define IIOCMODRULE _IO('I', 5) /* modify/replace a rule */
+#define IIOCINSRULE _IO('I', 6) /* insert/append one rule */
+#define IIOCDELRULE _IO('I', 7) /* delete a rule */
+#define IIOCDODFACT _IO('I', 8) /* hangup/reject/alert/immediately deflect a call */
+#define IIOCDOCFACT _IO('I', 9) /* activate control forwarding in PBX */
+#define IIOCDOCFDIS _IO('I',10) /* deactivate control forwarding in PBX */
+#define IIOCDOCFINT _IO('I',11) /* interrogate control forwarding in PBX */
+
+/*************************************/
+/* states reported through interface */
+/*************************************/
+#define DEFLECT_IGNORE 0 /* ignore incoming call */
+#define DEFLECT_REPORT 1 /* only report */
+#define DEFLECT_PROCEED 2 /* deflect when externally triggered */
+#define DEFLECT_ALERT 3 /* alert and deflect after delay */
+#define DEFLECT_REJECT 4 /* reject immediately */
+#define DIVERT_ACTIVATE 5 /* diversion activate */
+#define DIVERT_DEACTIVATE 6 /* diversion deactivate */
+#define DIVERT_REPORT 7 /* interrogation result */
+#define DEFLECT_AUTODEL 255 /* only for internal use */
+
+#define DEFLECT_ALL_IDS 0xFFFFFFFF /* all drivers selected */
+
+typedef struct
+ { ulong drvid; /* driver ids, bit mapped */
+ char my_msn[35]; /* desired msn, subaddr allowed */
+ char caller[35]; /* caller id, partial string with * + subaddr allowed */
+ char to_nr[35]; /* deflected to number incl. subaddress */
+ u_char si1,si2; /* service indicators, si1=bitmask, si1+2 0 = all */
+ u_char screen; /* screening: 0 = no info, 1 = info, 2 = nfo with nr */
+ u_char callopt; /* option for call handling:
+ 0 = all calls
+ 1 = only non waiting calls
+ 2 = only waiting calls */
+ u_char action; /* desired action:
+ 0 = don't report call -> ignore
+ 1 = report call, do not allow/proceed for deflection
+ 2 = report call, send proceed, wait max waittime secs
+ 3 = report call, alert and deflect after waittime
+ 4 = report call, reject immediately
+ actions 1-2 only take place if interface is opened
+ */
+ u_char waittime; /* maximum wait time for proceeding */
+ } divert_rule;
+
+typedef union
+ { int drv_version; /* return of driver version */
+ struct
+ { int drvid; /* id of driver */
+ char drvnam[30]; /* name of driver */
+ } getid;
+ struct
+ { int ruleidx; /* index of rule */
+ divert_rule rule; /* rule parms */
+ } getsetrule;
+ struct
+ { u_char subcmd; /* 0 = hangup/reject,
+ 1 = alert,
+ 2 = deflect */
+ ulong callid; /* id of call delivered by ascii output */
+ char to_nr[35]; /* destination when deflect,
+ else uus1 string (maxlen 31),
+ data from rule used if empty */
+ } fwd_ctrl;
+ struct
+ { int drvid; /* id of driver */
+ u_char cfproc; /* cfu = 0, cfb = 1, cfnr = 2 */
+ ulong procid; /* process id returned when no error */
+ u_char service; /* basically coded service, 0 = all */
+ char msn[25]; /* desired msn, empty = all */
+ char fwd_nr[35];/* forwarded to number + subaddress */
+ } cf_ctrl;
+ } divert_ioctl;
+
+#ifdef __KERNEL__
+
+#include <linux/isdnif.h>
+#include <linux/isdn_divertif.h>
+
+#define AUTODEL_TIME 30 /* timeout in s to delete internal entries */
+
+/**************************************************/
+/* structure keeping ascii info for device output */
+/**************************************************/
+struct divert_info
+ { struct divert_info *next;
+ ulong usage_cnt; /* number of files still to work */
+ char info_start[2]; /* info string start */
+ };
+
+
+/**************/
+/* Prototypes */
+/**************/
+extern spinlock_t divert_lock;
+
+extern ulong if_used; /* number of interface users */
+extern int divert_dev_deinit(void);
+extern int divert_dev_init(void);
+extern void put_info_buffer(char *);
+extern int ll_callback(isdn_ctrl *);
+extern isdn_divert_if divert_if;
+extern divert_rule *getruleptr(int);
+extern int insertrule(int, divert_rule *);
+extern int deleterule(int);
+extern void deleteprocs(void);
+extern int deflect_extern_action(u_char, ulong, char *);
+extern int cf_command(int, int, u_char, char *, u_char, char *, ulong *);
+
+#endif /* __KERNEL__ */
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