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path: root/drivers/isdn/hysdn/hysdn_procconf.c
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Diffstat (limited to 'drivers/isdn/hysdn/hysdn_procconf.c')
-rw-r--r--drivers/isdn/hysdn/hysdn_procconf.c411
1 files changed, 0 insertions, 411 deletions
diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c
deleted file mode 100644
index 73079213ec94..000000000000
--- a/drivers/isdn/hysdn/hysdn_procconf.c
+++ /dev/null
@@ -1,411 +0,0 @@
-/* $Id: hysdn_procconf.c,v 1.8.6.4 2001/09/23 22:24:54 kai Exp $
- *
- * Linux driver for HYSDN cards, /proc/net filesystem dir and conf functions.
- *
- * written by Werner Cornelius (werner@titro.de) for Hypercope GmbH
- *
- * Copyright 1999 by Werner Cornelius (werner@titro.de)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
-
-#include <linux/cred.h>
-#include <linux/module.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <net/net_namespace.h>
-
-#include "hysdn_defs.h"
-
-static DEFINE_MUTEX(hysdn_conf_mutex);
-
-#define INFO_OUT_LEN 80 /* length of info line including lf */
-
-/********************************************************/
-/* defines and data structure for conf write operations */
-/********************************************************/
-#define CONF_STATE_DETECT 0 /* waiting for detect */
-#define CONF_STATE_CONF 1 /* writing config data */
-#define CONF_STATE_POF 2 /* writing pof data */
-#define CONF_LINE_LEN 255 /* 255 chars max */
-
-struct conf_writedata {
- hysdn_card *card; /* card the device is connected to */
- int buf_size; /* actual number of bytes in the buffer */
- int needed_size; /* needed size when reading pof */
- int state; /* actual interface states from above constants */
- unsigned char conf_line[CONF_LINE_LEN]; /* buffered conf line */
- unsigned short channel; /* active channel number */
- unsigned char *pof_buffer; /* buffer when writing pof */
-};
-
-/***********************************************************************/
-/* process_line parses one config line and transfers it to the card if */
-/* necessary. */
-/* if the return value is negative an error occurred. */
-/***********************************************************************/
-static int
-process_line(struct conf_writedata *cnf)
-{
- unsigned char *cp = cnf->conf_line;
- int i;
-
- if (cnf->card->debug_flags & LOG_CNF_LINE)
- hysdn_addlog(cnf->card, "conf line: %s", cp);
-
- if (*cp == '-') { /* option */
- cp++; /* point to option char */
-
- if (*cp++ != 'c')
- return (0); /* option unknown or used */
- i = 0; /* start value for channel */
- while ((*cp <= '9') && (*cp >= '0'))
- i = i * 10 + *cp++ - '0'; /* get decimal number */
- if (i > 65535) {
- if (cnf->card->debug_flags & LOG_CNF_MISC)
- hysdn_addlog(cnf->card, "conf channel invalid %d", i);
- return (-ERR_INV_CHAN); /* invalid channel */
- }
- cnf->channel = i & 0xFFFF; /* set new channel number */
- return (0); /* success */
- } /* option */
- if (*cp == '*') { /* line to send */
- if (cnf->card->debug_flags & LOG_CNF_DATA)
- hysdn_addlog(cnf->card, "conf chan=%d %s", cnf->channel, cp);
- return (hysdn_tx_cfgline(cnf->card, cnf->conf_line + 1,
- cnf->channel)); /* send the line without * */
- } /* line to send */
- return (0);
-} /* process_line */
-
-/***********************************/
-/* conf file operations and tables */
-/***********************************/
-
-/****************************************************/
-/* write conf file -> boot or send cfg line to card */
-/****************************************************/
-static ssize_t
-hysdn_conf_write(struct file *file, const char __user *buf, size_t count, loff_t *off)
-{
- struct conf_writedata *cnf;
- int i;
- unsigned char ch, *cp;
-
- if (!count)
- return (0); /* nothing to handle */
-
- if (!(cnf = file->private_data))
- return (-EFAULT); /* should never happen */
-
- if (cnf->state == CONF_STATE_DETECT) { /* auto detect cnf or pof data */
- if (copy_from_user(&ch, buf, 1)) /* get first char for detect */
- return (-EFAULT);
-
- if (ch == 0x1A) {
- /* we detected a pof file */
- if ((cnf->needed_size = pof_write_open(cnf->card, &cnf->pof_buffer)) <= 0)
- return (cnf->needed_size); /* an error occurred -> exit */
- cnf->buf_size = 0; /* buffer is empty */
- cnf->state = CONF_STATE_POF; /* new state */
- } else {
- /* conf data has been detected */
- cnf->buf_size = 0; /* buffer is empty */
- cnf->state = CONF_STATE_CONF; /* requested conf data write */
- if (cnf->card->state != CARD_STATE_RUN)
- return (-ERR_NOT_BOOTED);
- cnf->conf_line[CONF_LINE_LEN - 1] = 0; /* limit string length */
- cnf->channel = 4098; /* default channel for output */
- }
- } /* state was auto detect */
- if (cnf->state == CONF_STATE_POF) { /* pof write active */
- i = cnf->needed_size - cnf->buf_size; /* bytes still missing for write */
- if (i <= 0)
- return (-EINVAL); /* size error handling pof */
-
- if (i < count)
- count = i; /* limit requested number of bytes */
- if (copy_from_user(cnf->pof_buffer + cnf->buf_size, buf, count))
- return (-EFAULT); /* error while copying */
- cnf->buf_size += count;
-
- if (cnf->needed_size == cnf->buf_size) {
- cnf->needed_size = pof_write_buffer(cnf->card, cnf->buf_size); /* write data */
- if (cnf->needed_size <= 0) {
- cnf->card->state = CARD_STATE_BOOTERR; /* show boot error */
- return (cnf->needed_size); /* an error occurred */
- }
- cnf->buf_size = 0; /* buffer is empty again */
- }
- }
- /* pof write active */
- else { /* conf write active */
-
- if (cnf->card->state != CARD_STATE_RUN) {
- if (cnf->card->debug_flags & LOG_CNF_MISC)
- hysdn_addlog(cnf->card, "cnf write denied -> not booted");
- return (-ERR_NOT_BOOTED);
- }
- i = (CONF_LINE_LEN - 1) - cnf->buf_size; /* bytes available in buffer */
- if (i > 0) {
- /* copy remaining bytes into buffer */
-
- if (count > i)
- count = i; /* limit transfer */
- if (copy_from_user(cnf->conf_line + cnf->buf_size, buf, count))
- return (-EFAULT); /* error while copying */
-
- i = count; /* number of chars in buffer */
- cp = cnf->conf_line + cnf->buf_size;
- while (i) {
- /* search for end of line */
- if ((*cp < ' ') && (*cp != 9))
- break; /* end of line found */
- cp++;
- i--;
- } /* search for end of line */
-
- if (i) {
- /* delimiter found */
- *cp++ = 0; /* string termination */
- count -= (i - 1); /* subtract remaining bytes from count */
- while ((i) && (*cp < ' ') && (*cp != 9)) {
- i--; /* discard next char */
- count++; /* mark as read */
- cp++; /* next char */
- }
- cnf->buf_size = 0; /* buffer is empty after transfer */
- if ((i = process_line(cnf)) < 0) /* handle the line */
- count = i; /* return the error */
- }
- /* delimiter found */
- else {
- cnf->buf_size += count; /* add chars to string */
- if (cnf->buf_size >= CONF_LINE_LEN - 1) {
- if (cnf->card->debug_flags & LOG_CNF_MISC)
- hysdn_addlog(cnf->card, "cnf line too long %d chars pos %d", cnf->buf_size, count);
- return (-ERR_CONF_LONG);
- }
- } /* not delimited */
-
- }
- /* copy remaining bytes into buffer */
- else {
- if (cnf->card->debug_flags & LOG_CNF_MISC)
- hysdn_addlog(cnf->card, "cnf line too long");
- return (-ERR_CONF_LONG);
- }
- } /* conf write active */
-
- return (count);
-} /* hysdn_conf_write */
-
-/*******************************************/
-/* read conf file -> output card info data */
-/*******************************************/
-static ssize_t
-hysdn_conf_read(struct file *file, char __user *buf, size_t count, loff_t *off)
-{
- char *cp;
-
- if (!(file->f_mode & FMODE_READ))
- return -EPERM; /* no permission to read */
-
- if (!(cp = file->private_data))
- return -EFAULT; /* should never happen */
-
- return simple_read_from_buffer(buf, count, off, cp, strlen(cp));
-} /* hysdn_conf_read */
-
-/******************/
-/* open conf file */
-/******************/
-static int
-hysdn_conf_open(struct inode *ino, struct file *filep)
-{
- hysdn_card *card;
- struct conf_writedata *cnf;
- char *cp, *tmp;
-
- /* now search the addressed card */
- mutex_lock(&hysdn_conf_mutex);
- card = PDE_DATA(ino);
- if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL))
- hysdn_addlog(card, "config open for uid=%d gid=%d mode=0x%x",
- filep->f_cred->fsuid, filep->f_cred->fsgid,
- filep->f_mode);
-
- if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) {
- /* write only access -> write boot file or conf line */
-
- if (!(cnf = kmalloc(sizeof(struct conf_writedata), GFP_KERNEL))) {
- mutex_unlock(&hysdn_conf_mutex);
- return (-EFAULT);
- }
- cnf->card = card;
- cnf->buf_size = 0; /* nothing buffered */
- cnf->state = CONF_STATE_DETECT; /* start auto detect */
- filep->private_data = cnf;
-
- } else if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) {
- /* read access -> output card info data */
-
- if (!(tmp = kmalloc(INFO_OUT_LEN * 2 + 2, GFP_KERNEL))) {
- mutex_unlock(&hysdn_conf_mutex);
- return (-EFAULT); /* out of memory */
- }
- filep->private_data = tmp; /* start of string */
-
- /* first output a headline */
- sprintf(tmp, "id bus slot type irq iobase dp-mem b-chans fax-chans state device");
- cp = tmp; /* start of string */
- while (*cp)
- cp++;
- while (((cp - tmp) % (INFO_OUT_LEN + 1)) != INFO_OUT_LEN)
- *cp++ = ' ';
- *cp++ = '\n';
-
- /* and now the data */
- sprintf(cp, "%d %3d %4d %4d %3d 0x%04x 0x%08lx %7d %9d %3d %s",
- card->myid,
- card->bus,
- PCI_SLOT(card->devfn),
- card->brdtype,
- card->irq,
- card->iobase,
- card->membase,
- card->bchans,
- card->faxchans,
- card->state,
- hysdn_net_getname(card));
- while (*cp)
- cp++;
- while (((cp - tmp) % (INFO_OUT_LEN + 1)) != INFO_OUT_LEN)
- *cp++ = ' ';
- *cp++ = '\n';
- *cp = 0; /* end of string */
- } else { /* simultaneous read/write access forbidden ! */
- mutex_unlock(&hysdn_conf_mutex);
- return (-EPERM); /* no permission this time */
- }
- mutex_unlock(&hysdn_conf_mutex);
- return nonseekable_open(ino, filep);
-} /* hysdn_conf_open */
-
-/***************************/
-/* close a config file. */
-/***************************/
-static int
-hysdn_conf_close(struct inode *ino, struct file *filep)
-{
- hysdn_card *card;
- struct conf_writedata *cnf;
- int retval = 0;
-
- mutex_lock(&hysdn_conf_mutex);
- card = PDE_DATA(ino);
- if (card->debug_flags & (LOG_PROC_OPEN | LOG_PROC_ALL))
- hysdn_addlog(card, "config close for uid=%d gid=%d mode=0x%x",
- filep->f_cred->fsuid, filep->f_cred->fsgid,
- filep->f_mode);
-
- if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_WRITE) {
- /* write only access -> write boot file or conf line */
- if (filep->private_data) {
- cnf = filep->private_data;
-
- if (cnf->state == CONF_STATE_POF)
- retval = pof_write_close(cnf->card); /* close the pof write */
- kfree(filep->private_data); /* free allocated memory for buffer */
-
- } /* handle write private data */
- } else if ((filep->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) {
- /* read access -> output card info data */
-
- kfree(filep->private_data); /* release memory */
- }
- mutex_unlock(&hysdn_conf_mutex);
- return (retval);
-} /* hysdn_conf_close */
-
-/******************************************************/
-/* table for conf filesystem functions defined above. */
-/******************************************************/
-static const struct file_operations conf_fops =
-{
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = hysdn_conf_read,
- .write = hysdn_conf_write,
- .open = hysdn_conf_open,
- .release = hysdn_conf_close,
-};
-
-/*****************************/
-/* hysdn subdir in /proc/net */
-/*****************************/
-struct proc_dir_entry *hysdn_proc_entry = NULL;
-
-/*******************************************************************************/
-/* hysdn_procconf_init is called when the module is loaded and after the cards */
-/* have been detected. The needed proc dir and card config files are created. */
-/* The log init is called at last. */
-/*******************************************************************************/
-int
-hysdn_procconf_init(void)
-{
- hysdn_card *card;
- unsigned char conf_name[20];
-
- hysdn_proc_entry = proc_mkdir(PROC_SUBDIR_NAME, init_net.proc_net);
- if (!hysdn_proc_entry) {
- printk(KERN_ERR "HYSDN: unable to create hysdn subdir\n");
- return (-1);
- }
- card = card_root; /* point to first card */
- while (card) {
-
- sprintf(conf_name, "%s%d", PROC_CONF_BASENAME, card->myid);
- if ((card->procconf = (void *) proc_create_data(conf_name,
- S_IFREG | S_IRUGO | S_IWUSR,
- hysdn_proc_entry,
- &conf_fops,
- card)) != NULL) {
- hysdn_proclog_init(card); /* init the log file entry */
- }
- card = card->next; /* next entry */
- }
-
- printk(KERN_NOTICE "HYSDN: procfs initialised\n");
- return (0);
-} /* hysdn_procconf_init */
-
-/*************************************************************************************/
-/* hysdn_procconf_release is called when the module is unloaded and before the cards */
-/* resources are released. The module counter is assumed to be 0 ! */
-/*************************************************************************************/
-void
-hysdn_procconf_release(void)
-{
- hysdn_card *card;
- unsigned char conf_name[20];
-
- card = card_root; /* start with first card */
- while (card) {
-
- sprintf(conf_name, "%s%d", PROC_CONF_BASENAME, card->myid);
- if (card->procconf)
- remove_proc_entry(conf_name, hysdn_proc_entry);
-
- hysdn_proclog_release(card); /* init the log file entry */
-
- card = card->next; /* point to next card */
- }
-
- remove_proc_entry(PROC_SUBDIR_NAME, init_net.proc_net);
-}