2005-04-16 22:20:36 +00:00
|
|
|
/*****************************************************************************
|
|
|
|
* wanproc.c WAN Router Module. /proc filesystem interface.
|
|
|
|
*
|
|
|
|
* This module is completely hardware-independent and provides
|
|
|
|
* access to the router using Linux /proc filesystem.
|
|
|
|
*
|
|
|
|
* Author: Gideon Hack
|
|
|
|
*
|
|
|
|
* Copyright: (c) 1995-1999 Sangoma Technologies Inc.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
* modify it under the terms of the GNU General Public License
|
|
|
|
* as published by the Free Software Foundation; either version
|
|
|
|
* 2 of the License, or (at your option) any later version.
|
|
|
|
* ============================================================================
|
|
|
|
* Jun 02, 1999 Gideon Hack Updates for Linux 2.2.X kernels.
|
|
|
|
* Jun 29, 1997 Alan Cox Merged with 1.0.3 vendor code
|
|
|
|
* Jan 29, 1997 Gene Kozin v1.0.1. Implemented /proc read routines
|
|
|
|
* Jan 30, 1997 Alan Cox Hacked around for 2.1
|
|
|
|
* Dec 13, 1996 Gene Kozin Initial version (based on Sangoma's WANPIPE)
|
|
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
#include <linux/init.h> /* __initfunc et al. */
|
|
|
|
#include <linux/stddef.h> /* offsetof(), etc. */
|
|
|
|
#include <linux/errno.h> /* return codes */
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/wanrouter.h> /* WAN router API definitions */
|
|
|
|
#include <linux/seq_file.h>
|
|
|
|
#include <linux/smp_lock.h>
|
|
|
|
|
2007-09-12 10:01:34 +00:00
|
|
|
#include <net/net_namespace.h>
|
2005-04-16 22:20:36 +00:00
|
|
|
#include <asm/io.h>
|
|
|
|
|
|
|
|
#define PROC_STATS_FORMAT "%30s: %12lu\n"
|
|
|
|
|
|
|
|
/****** Defines and Macros **************************************************/
|
|
|
|
|
|
|
|
#define PROT_DECODE(prot) ((prot == WANCONFIG_FR) ? " FR" :\
|
|
|
|
(prot == WANCONFIG_X25) ? " X25" : \
|
2007-02-09 14:25:25 +00:00
|
|
|
(prot == WANCONFIG_PPP) ? " PPP" : \
|
2005-04-16 22:20:36 +00:00
|
|
|
(prot == WANCONFIG_CHDLC) ? " CHDLC": \
|
|
|
|
(prot == WANCONFIG_MPPP) ? " MPPP" : \
|
2007-02-09 14:25:25 +00:00
|
|
|
" Unknown" )
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/****** Function Prototypes *************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
|
|
|
|
/* Miscellaneous */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Structures for interfacing with the /proc filesystem.
|
|
|
|
* Router creates its own directory /proc/net/router with the folowing
|
|
|
|
* entries:
|
|
|
|
* config device configuration
|
|
|
|
* status global device statistics
|
|
|
|
* <device> entry for each WAN device
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Generic /proc/net/router/<file> file and inode operations
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* /proc/net/router
|
|
|
|
*/
|
|
|
|
|
|
|
|
static struct proc_dir_entry *proc_router;
|
|
|
|
|
|
|
|
/* Strings */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Interface functions
|
|
|
|
*/
|
|
|
|
|
|
|
|
/****** Proc filesystem entry points ****************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Iterator
|
|
|
|
*/
|
|
|
|
static void *r_start(struct seq_file *m, loff_t *pos)
|
|
|
|
{
|
|
|
|
struct wan_device *wandev;
|
|
|
|
loff_t l = *pos;
|
|
|
|
|
|
|
|
lock_kernel();
|
|
|
|
if (!l--)
|
|
|
|
return SEQ_START_TOKEN;
|
|
|
|
for (wandev = wanrouter_router_devlist; l-- && wandev;
|
|
|
|
wandev = wandev->next)
|
|
|
|
;
|
|
|
|
return wandev;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void *r_next(struct seq_file *m, void *v, loff_t *pos)
|
|
|
|
{
|
|
|
|
struct wan_device *wandev = v;
|
|
|
|
(*pos)++;
|
|
|
|
return (v == SEQ_START_TOKEN) ? wanrouter_router_devlist : wandev->next;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r_stop(struct seq_file *m, void *v)
|
|
|
|
{
|
|
|
|
unlock_kernel();
|
|
|
|
}
|
|
|
|
|
|
|
|
static int config_show(struct seq_file *m, void *v)
|
|
|
|
{
|
|
|
|
struct wan_device *p = v;
|
|
|
|
if (v == SEQ_START_TOKEN) {
|
|
|
|
seq_puts(m, "Device name | port |IRQ|DMA| mem.addr |"
|
|
|
|
"mem.size|option1|option2|option3|option4\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (!p->state)
|
|
|
|
return 0;
|
|
|
|
seq_printf(m, "%-15s|0x%-4X|%3u|%3u| 0x%-8lX |0x%-6X|%7u|%7u|%7u|%7u\n",
|
|
|
|
p->name, p->ioport, p->irq, p->dma, p->maddr, p->msize,
|
|
|
|
p->hw_opt[0], p->hw_opt[1], p->hw_opt[2], p->hw_opt[3]);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int status_show(struct seq_file *m, void *v)
|
|
|
|
{
|
|
|
|
struct wan_device *p = v;
|
|
|
|
if (v == SEQ_START_TOKEN) {
|
|
|
|
seq_puts(m, "Device name |protocol|station|interface|"
|
|
|
|
"clocking|baud rate| MTU |ndev|link state\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (!p->state)
|
|
|
|
return 0;
|
|
|
|
seq_printf(m, "%-15s|%-8s| %-7s| %-9s|%-8s|%9u|%5u|%3u |",
|
|
|
|
p->name,
|
|
|
|
PROT_DECODE(p->config_id),
|
|
|
|
p->config_id == WANCONFIG_FR ?
|
|
|
|
(p->station ? "Node" : "CPE") :
|
|
|
|
(p->config_id == WANCONFIG_X25 ?
|
|
|
|
(p->station ? "DCE" : "DTE") :
|
|
|
|
("N/A")),
|
|
|
|
p->interface ? "V.35" : "RS-232",
|
|
|
|
p->clocking ? "internal" : "external",
|
|
|
|
p->bps,
|
|
|
|
p->mtu,
|
|
|
|
p->ndev);
|
|
|
|
|
|
|
|
switch (p->state) {
|
|
|
|
case WAN_UNCONFIGURED:
|
|
|
|
seq_printf(m, "%-12s\n", "unconfigured");
|
|
|
|
break;
|
|
|
|
case WAN_DISCONNECTED:
|
|
|
|
seq_printf(m, "%-12s\n", "disconnected");
|
|
|
|
break;
|
|
|
|
case WAN_CONNECTING:
|
|
|
|
seq_printf(m, "%-12s\n", "connecting");
|
|
|
|
break;
|
|
|
|
case WAN_CONNECTED:
|
|
|
|
seq_printf(m, "%-12s\n", "connected");
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
seq_printf(m, "%-12s\n", "invalid");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-07-11 06:07:31 +00:00
|
|
|
static const struct seq_operations config_op = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.start = r_start,
|
|
|
|
.next = r_next,
|
|
|
|
.stop = r_stop,
|
|
|
|
.show = config_show,
|
|
|
|
};
|
|
|
|
|
2007-07-11 06:07:31 +00:00
|
|
|
static const struct seq_operations status_op = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.start = r_start,
|
|
|
|
.next = r_next,
|
|
|
|
.stop = r_stop,
|
|
|
|
.show = status_show,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int config_open(struct inode *inode, struct file *file)
|
|
|
|
{
|
|
|
|
return seq_open(file, &config_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int status_open(struct inode *inode, struct file *file)
|
|
|
|
{
|
|
|
|
return seq_open(file, &status_op);
|
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:36 +00:00
|
|
|
static const struct file_operations config_fops = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = config_open,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = seq_release,
|
|
|
|
};
|
|
|
|
|
2007-02-12 08:55:36 +00:00
|
|
|
static const struct file_operations status_fops = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = status_open,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = seq_release,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int wandev_show(struct seq_file *m, void *v)
|
|
|
|
{
|
|
|
|
struct wan_device *wandev = m->private;
|
|
|
|
|
|
|
|
if (wandev->magic != ROUTER_MAGIC)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!wandev->state) {
|
|
|
|
seq_puts(m, "device is not configured!\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Update device statistics */
|
|
|
|
if (wandev->update) {
|
|
|
|
int err = wandev->update(wandev);
|
|
|
|
if (err == -EAGAIN) {
|
|
|
|
seq_puts(m, "Device is busy!\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (err) {
|
|
|
|
seq_puts(m, "Device is not configured!\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"total packets received", wandev->stats.rx_packets);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"total packets transmitted", wandev->stats.tx_packets);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"total bytes received", wandev->stats.rx_bytes);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"total bytes transmitted", wandev->stats.tx_bytes);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"bad packets received", wandev->stats.rx_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"packet transmit problems", wandev->stats.tx_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"received frames dropped", wandev->stats.rx_dropped);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"transmit frames dropped", wandev->stats.tx_dropped);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"multicast packets received", wandev->stats.multicast);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"transmit collisions", wandev->stats.collisions);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"receive length errors", wandev->stats.rx_length_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"receiver overrun errors", wandev->stats.rx_over_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"CRC errors", wandev->stats.rx_crc_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"frame format errors (aborts)", wandev->stats.rx_frame_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"receiver fifo overrun", wandev->stats.rx_fifo_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"receiver missed packet", wandev->stats.rx_missed_errors);
|
|
|
|
seq_printf(m, PROC_STATS_FORMAT,
|
|
|
|
"aborted frames transmitted", wandev->stats.tx_aborted_errors);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int wandev_open(struct inode *inode, struct file *file)
|
|
|
|
{
|
|
|
|
return single_open(file, wandev_show, PDE(inode)->data);
|
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:36 +00:00
|
|
|
static const struct file_operations wandev_fops = {
|
2005-04-16 22:20:36 +00:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = wandev_open,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = single_release,
|
2008-05-26 06:41:40 +00:00
|
|
|
.unlocked_ioctl = wanrouter_ioctl,
|
2005-04-16 22:20:36 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize router proc interface.
|
|
|
|
*/
|
|
|
|
|
|
|
|
int __init wanrouter_proc_init(void)
|
|
|
|
{
|
|
|
|
struct proc_dir_entry *p;
|
2007-09-12 10:01:34 +00:00
|
|
|
proc_router = proc_mkdir(ROUTER_NAME, init_net.proc_net);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (!proc_router)
|
|
|
|
goto fail;
|
|
|
|
|
2008-02-28 22:15:56 +00:00
|
|
|
p = proc_create("config", S_IRUGO, proc_router, &config_fops);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (!p)
|
|
|
|
goto fail_config;
|
2008-02-28 22:15:56 +00:00
|
|
|
p = proc_create("status", S_IRUGO, proc_router, &status_fops);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (!p)
|
|
|
|
goto fail_stat;
|
|
|
|
return 0;
|
|
|
|
fail_stat:
|
|
|
|
remove_proc_entry("config", proc_router);
|
|
|
|
fail_config:
|
2007-09-12 10:01:34 +00:00
|
|
|
remove_proc_entry(ROUTER_NAME, init_net.proc_net);
|
2005-04-16 22:20:36 +00:00
|
|
|
fail:
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Clean up router proc interface.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void wanrouter_proc_cleanup(void)
|
|
|
|
{
|
|
|
|
remove_proc_entry("config", proc_router);
|
|
|
|
remove_proc_entry("status", proc_router);
|
2007-09-12 10:01:34 +00:00
|
|
|
remove_proc_entry(ROUTER_NAME, init_net.proc_net);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add directory entry for WAN device.
|
|
|
|
*/
|
|
|
|
|
|
|
|
int wanrouter_proc_add(struct wan_device* wandev)
|
|
|
|
{
|
|
|
|
if (wandev->magic != ROUTER_MAGIC)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-02-28 22:15:56 +00:00
|
|
|
wandev->dent = proc_create(wandev->name, S_IRUGO,
|
|
|
|
proc_router, &wandev_fops);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (!wandev->dent)
|
|
|
|
return -ENOMEM;
|
|
|
|
wandev->dent->data = wandev;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Delete directory entry for WAN device.
|
|
|
|
*/
|
|
|
|
int wanrouter_proc_delete(struct wan_device* wandev)
|
|
|
|
{
|
|
|
|
if (wandev->magic != ROUTER_MAGIC)
|
|
|
|
return -EINVAL;
|
|
|
|
remove_proc_entry(wandev->name, proc_router);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
/*
|
|
|
|
* No /proc - output stubs
|
|
|
|
*/
|
|
|
|
|
|
|
|
int __init wanrouter_proc_init(void)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void wanrouter_proc_cleanup(void)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
int wanrouter_proc_add(struct wan_device *wandev)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int wanrouter_proc_delete(struct wan_device *wandev)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* End
|
|
|
|
*/
|
|
|
|
|