mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-04-21 12:27:27 +03:00
first try to integrate nbds great new switch drivers for 2.4/2.6 with full vlan support for Netgear and Linksys routers, robo and adm switch, tada
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2776 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
wbx
409
target/linux/package/switch/src/switch-core.c
Normal file
409
target/linux/package/switch/src/switch-core.c
Normal file
@@ -0,0 +1,409 @@
|
||||
/*
|
||||
* switch-core.c
|
||||
*
|
||||
* Copyright (C) 2005 Felix Fietkau <openwrt@nbd.name>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* $Id: $
|
||||
*/
|
||||
|
||||
#include <linux/config.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/list.h>
|
||||
|
||||
#include "switch-core.h"
|
||||
|
||||
static int drv_num = 0;
|
||||
static struct proc_dir_entry *switch_root;
|
||||
switch_driver drivers;
|
||||
|
||||
typedef struct {
|
||||
struct list_head list;
|
||||
struct proc_dir_entry *parent;
|
||||
int nr;
|
||||
switch_config handler;
|
||||
} switch_proc_handler;
|
||||
|
||||
typedef struct {
|
||||
struct proc_dir_entry *driver_dir, *port_dir, *vlan_dir;
|
||||
struct proc_dir_entry **ports, **vlans;
|
||||
switch_proc_handler data;
|
||||
int nr;
|
||||
} switch_priv;
|
||||
|
||||
|
||||
static ssize_t switch_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
|
||||
static ssize_t switch_proc_write(struct file *file, const char *buf, size_t count, void *data);
|
||||
|
||||
static struct file_operations switch_proc_fops = {
|
||||
read: switch_proc_read,
|
||||
write: switch_proc_write
|
||||
};
|
||||
|
||||
static char *strdup(char *str)
|
||||
{
|
||||
char *new = kmalloc(strlen(str) + 1, GFP_KERNEL);
|
||||
strcpy(new, str);
|
||||
return new;
|
||||
}
|
||||
|
||||
static ssize_t switch_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
|
||||
{
|
||||
#ifdef LINUX_2_4
|
||||
struct inode *inode = file->f_dentry->d_inode;
|
||||
struct proc_dir_entry *dent = inode->u.generic_ip;
|
||||
#else
|
||||
struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
|
||||
#endif
|
||||
char *page;
|
||||
int len = 0;
|
||||
|
||||
if ((page = kmalloc(SWITCH_MAX_BUFSZ, GFP_KERNEL)) == NULL)
|
||||
return -ENOBUFS;
|
||||
|
||||
if (dent->data != NULL) {
|
||||
switch_proc_handler *handler = (switch_proc_handler *) dent->data;
|
||||
if (handler->handler.read != NULL)
|
||||
len += handler->handler.read(page + len, handler->nr);
|
||||
}
|
||||
len += 1;
|
||||
|
||||
if (*ppos < len) {
|
||||
len = min_t(int, len - *ppos, count);
|
||||
if (copy_to_user(buf, (page + *ppos), len)) {
|
||||
kfree(page);
|
||||
return -EFAULT;
|
||||
}
|
||||
*ppos += len;
|
||||
} else {
|
||||
len = 0;
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
|
||||
static ssize_t switch_proc_write(struct file *file, const char *buf, size_t count, void *data)
|
||||
{
|
||||
#ifdef LINUX_2_4
|
||||
struct inode *inode = file->f_dentry->d_inode;
|
||||
struct proc_dir_entry *dent = inode->u.generic_ip;
|
||||
#else
|
||||
struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
|
||||
#endif
|
||||
char *page;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
|
||||
return -ENOBUFS;
|
||||
|
||||
if (copy_from_user(page, buf, count)) {
|
||||
kfree(page);
|
||||
return -EINVAL;
|
||||
}
|
||||
page[count] = 0;
|
||||
|
||||
if (dent->data != NULL) {
|
||||
switch_proc_handler *handler = (switch_proc_handler *) dent->data;
|
||||
if (handler->handler.write != NULL) {
|
||||
if ((ret = handler->handler.write(page, handler->nr)) >= 0)
|
||||
ret = count;
|
||||
}
|
||||
}
|
||||
|
||||
kfree(page);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void add_handlers(switch_priv *priv, switch_config *handlers, struct proc_dir_entry *parent, int nr)
|
||||
{
|
||||
switch_proc_handler *tmp;
|
||||
int i, mode;
|
||||
struct proc_dir_entry *p;
|
||||
|
||||
for (i = 0; handlers[i].name != NULL; i++) {
|
||||
tmp = kmalloc(sizeof(switch_proc_handler), GFP_KERNEL);
|
||||
INIT_LIST_HEAD(&tmp->list);
|
||||
tmp->parent = parent;
|
||||
tmp->nr = nr;
|
||||
memcpy(&tmp->handler, &(handlers[i]), sizeof(switch_config));
|
||||
list_add(&tmp->list, &priv->data.list);
|
||||
|
||||
mode = 0;
|
||||
if (handlers[i].read != NULL) mode |= S_IRUSR;
|
||||
if (handlers[i].write != NULL) mode |= S_IWUSR;
|
||||
|
||||
if ((p = create_proc_entry(handlers[i].name, mode, parent)) != NULL) {
|
||||
p->data = (void *) tmp;
|
||||
p->proc_fops = &switch_proc_fops;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void remove_handlers(switch_priv *priv)
|
||||
{
|
||||
struct list_head *pos, *q;
|
||||
switch_proc_handler *tmp;
|
||||
|
||||
list_for_each_safe(pos, q, &priv->data.list) {
|
||||
tmp = list_entry(pos, switch_proc_handler, list);
|
||||
list_del(pos);
|
||||
remove_proc_entry(tmp->handler.name, tmp->parent);
|
||||
kfree(tmp);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void do_unregister(switch_driver *driver)
|
||||
{
|
||||
char buf[4];
|
||||
int i;
|
||||
switch_priv *priv = (switch_priv *) driver->data;
|
||||
|
||||
remove_handlers(priv);
|
||||
|
||||
for(i = 0; priv->ports[i] != NULL; i++) {
|
||||
sprintf(buf, "%d", i);
|
||||
remove_proc_entry(buf, priv->port_dir);
|
||||
}
|
||||
kfree(priv->ports);
|
||||
remove_proc_entry("port", priv->driver_dir);
|
||||
|
||||
for(i = 0; priv->vlans[i] != NULL; i++) {
|
||||
sprintf(buf, "%d", i);
|
||||
remove_proc_entry(buf, priv->vlan_dir);
|
||||
}
|
||||
kfree(priv->vlans);
|
||||
remove_proc_entry("vlan", priv->driver_dir);
|
||||
|
||||
remove_proc_entry(driver->name, switch_root);
|
||||
|
||||
if (priv->nr == (drv_num - 1))
|
||||
drv_num--;
|
||||
|
||||
kfree(priv);
|
||||
}
|
||||
|
||||
static int do_register(switch_driver *driver)
|
||||
{
|
||||
switch_priv *priv;
|
||||
int i;
|
||||
char buf[4];
|
||||
|
||||
if ((priv = kmalloc(sizeof(switch_priv), GFP_KERNEL)) == NULL)
|
||||
return -ENOBUFS;
|
||||
driver->data = (void *) priv;
|
||||
|
||||
INIT_LIST_HEAD(&priv->data.list);
|
||||
|
||||
priv->nr = drv_num++;
|
||||
sprintf(buf, "%d", priv->nr);
|
||||
priv->driver_dir = proc_mkdir(buf, switch_root);
|
||||
if (driver->driver_handlers != NULL)
|
||||
add_handlers(priv, driver->driver_handlers, priv->driver_dir, 0);
|
||||
|
||||
priv->port_dir = proc_mkdir("port", priv->driver_dir);
|
||||
priv->ports = kmalloc((driver->ports + 1) * sizeof(struct proc_dir_entry *), GFP_KERNEL);
|
||||
for (i = 0; i < driver->ports; i++) {
|
||||
sprintf(buf, "%d", i);
|
||||
priv->ports[i] = proc_mkdir(buf, priv->port_dir);
|
||||
if (driver->port_handlers != NULL)
|
||||
add_handlers(priv, driver->port_handlers, priv->ports[i], i);
|
||||
}
|
||||
priv->ports[i] = NULL;
|
||||
|
||||
priv->vlan_dir = proc_mkdir("vlan", priv->driver_dir);
|
||||
priv->vlans = kmalloc((driver->vlans + 1) * sizeof(struct proc_dir_entry *), GFP_KERNEL);
|
||||
for (i = 0; i < driver->vlans; i++) {
|
||||
sprintf(buf, "%d", i);
|
||||
priv->vlans[i] = proc_mkdir(buf, priv->vlan_dir);
|
||||
if (driver->vlan_handlers != NULL)
|
||||
add_handlers(priv, driver->vlan_handlers, priv->vlans[i], i);
|
||||
}
|
||||
priv->vlans[i] = NULL;
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int isspace(char c) {
|
||||
switch(c) {
|
||||
case ' ':
|
||||
case 0x09:
|
||||
case 0x0a:
|
||||
case 0x0d:
|
||||
return 1;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
#define toupper(c) (islower(c) ? ((c) ^ 0x20) : (c))
|
||||
#define islower(c) (((unsigned char)((c) - 'a')) < 26)
|
||||
|
||||
int switch_parse_media(char *buf)
|
||||
{
|
||||
char *str = buf;
|
||||
while (*buf != 0) {
|
||||
*buf = toupper(*buf);
|
||||
buf++;
|
||||
}
|
||||
|
||||
if (strncmp(str, "AUTO", 4) == 0)
|
||||
return SWITCH_MEDIA_AUTO;
|
||||
else if (strncmp(str, "100FD", 5) == 0)
|
||||
return SWITCH_MEDIA_100 | SWITCH_MEDIA_FD;
|
||||
else if (strncmp(str, "100HD", 5) == 0)
|
||||
return SWITCH_MEDIA_100;
|
||||
else if (strncmp(str, "10FD", 4) == 0)
|
||||
return SWITCH_MEDIA_FD;
|
||||
else if (strncmp(str, "10HD", 4) == 0)
|
||||
return 0;
|
||||
else return -1;
|
||||
}
|
||||
|
||||
int switch_print_media(char *buf, int media)
|
||||
{
|
||||
int len = 0;
|
||||
|
||||
if (media & SWITCH_MEDIA_AUTO)
|
||||
len = sprintf(buf, "Auto");
|
||||
else if (media == (SWITCH_MEDIA_100 | SWITCH_MEDIA_FD))
|
||||
len = sprintf(buf, "100FD");
|
||||
else if (media == SWITCH_MEDIA_100)
|
||||
len = sprintf(buf, "100HD");
|
||||
else if (media == SWITCH_MEDIA_FD)
|
||||
len = sprintf(buf, "10FD");
|
||||
else if (media == 0)
|
||||
len = sprintf(buf, "10HD");
|
||||
else
|
||||
len = sprintf(buf, "Invalid");
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
int switch_parse_vlan(char *buf)
|
||||
{
|
||||
char vlan = 0, tag = 0, pvid_port = 0;
|
||||
int untag, j;
|
||||
|
||||
while (isspace(*buf)) buf++;
|
||||
|
||||
while (*buf >= '0' && *buf <= '9') {
|
||||
j = *buf++ - '0';
|
||||
vlan |= 1 << j;
|
||||
|
||||
untag = 0;
|
||||
/* untag if needed, CPU port requires special handling */
|
||||
if (*buf == 'u' || (j != 5 && (isspace(*buf) || *buf == 0))) {
|
||||
untag = 1;
|
||||
if (*buf) buf++;
|
||||
} else if (*buf == '*') {
|
||||
pvid_port |= (1 << j);
|
||||
buf++;
|
||||
} else if (*buf == 't' || isspace(*buf)) {
|
||||
buf++;
|
||||
} else break;
|
||||
|
||||
if (!untag)
|
||||
tag |= 1 << j;
|
||||
|
||||
while (isspace(*buf)) buf++;
|
||||
}
|
||||
|
||||
if (*buf)
|
||||
return -1;
|
||||
|
||||
return (pvid_port << 16) | (tag << 8) | vlan;
|
||||
}
|
||||
|
||||
|
||||
int switch_register_driver(switch_driver *driver)
|
||||
{
|
||||
struct list_head *pos;
|
||||
switch_driver *new;
|
||||
int ret;
|
||||
|
||||
list_for_each(pos, &drivers.list) {
|
||||
if (strcmp(list_entry(pos, switch_driver, list)->name, driver->name) == 0) {
|
||||
printk("Switch driver '%s' already exists in the kernel\n", driver->name);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
new = kmalloc(sizeof(switch_driver), GFP_KERNEL);
|
||||
memcpy(new, driver, sizeof(switch_driver));
|
||||
new->name = strdup(driver->name);
|
||||
|
||||
if ((ret = do_register(new)) < 0) {
|
||||
kfree(new->name);
|
||||
kfree(new);
|
||||
return ret;
|
||||
}
|
||||
INIT_LIST_HEAD(&new->list);
|
||||
list_add(&new->list, &drivers.list);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void switch_unregister_driver(char *name) {
|
||||
struct list_head *pos, *q;
|
||||
switch_driver *tmp;
|
||||
|
||||
list_for_each_safe(pos, q, &drivers.list) {
|
||||
tmp = list_entry(pos, switch_driver, list);
|
||||
if (strcmp(tmp->name, name) == 0) {
|
||||
do_unregister(tmp);
|
||||
list_del(pos);
|
||||
kfree(tmp->name);
|
||||
kfree(tmp);
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int __init switch_init()
|
||||
{
|
||||
if ((switch_root = proc_mkdir("switch", NULL)) == NULL) {
|
||||
printk("%s: proc_mkdir failed.\n", __FILE__);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
INIT_LIST_HEAD(&drivers.list);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit switch_exit()
|
||||
{
|
||||
remove_proc_entry("vlan", NULL);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
EXPORT_SYMBOL(switch_register_driver);
|
||||
EXPORT_SYMBOL(switch_unregister_driver);
|
||||
EXPORT_SYMBOL(switch_parse_vlan);
|
||||
EXPORT_SYMBOL(switch_parse_media);
|
||||
EXPORT_SYMBOL(switch_print_media);
|
||||
|
||||
module_init(switch_init);
|
||||
module_exit(switch_exit);
|
||||
Reference in New Issue
Block a user