*
* This module is completely hardware-independent and provides
* the following common services for the WAN Link Drivers:
-* o WAN device managenment (registering, unregistering)
+* o WAN device management (registering, unregistering)
* o Network interface management
* o Physical connection management (dial-up, incoming calls)
* o Logical connection management (switched virtual circuits)
* Jun 02, 1999 Gideon Hack Updates for Linux 2.0.X and 2.2.X kernels.
*****************************************************************************/
-#include <linux/config.h>
#include <linux/stddef.h> /* offsetof(), etc. */
+#include <linux/capability.h>
#include <linux/errno.h> /* return codes */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h> /* support for loadable modules */
-#include <linux/slab.h> /* kmalloc(), kfree() */
-#include <linux/mm.h> /* verify_area(), etc. */
+#include <linux/slab.h> /* kmalloc(), kfree() */
+#include <linux/mm.h>
#include <linux/string.h> /* inline mem*, str* functions */
#include <asm/byteorder.h> /* htons(), etc. */
#define KMEM_SAFETYZONE 8
-/***********FOR DEBUGGING PURPOSES*********************************************
-static void * dbg_kmalloc(unsigned int size, int prio, int line) {
- int i = 0;
- void * v = kmalloc(size+sizeof(unsigned int)+2*KMEM_SAFETYZONE*8,prio);
- char * c1 = v;
- c1 += sizeof(unsigned int);
- *((unsigned int *)v) = size;
-
- for (i = 0; i < KMEM_SAFETYZONE; i++) {
- c1[0] = 'D'; c1[1] = 'E'; c1[2] = 'A'; c1[3] = 'D';
- c1[4] = 'B'; c1[5] = 'E'; c1[6] = 'E'; c1[7] = 'F';
- c1 += 8;
- }
- c1 += size;
- for (i = 0; i < KMEM_SAFETYZONE; i++) {
- c1[0] = 'M'; c1[1] = 'U'; c1[2] = 'N'; c1[3] = 'G';
- c1[4] = 'W'; c1[5] = 'A'; c1[6] = 'L'; c1[7] = 'L';
- c1 += 8;
- }
- v = ((char *)v) + sizeof(unsigned int) + KMEM_SAFETYZONE*8;
- printk(KERN_INFO "line %d kmalloc(%d,%d) = %p\n",line,size,prio,v);
- return v;
-}
-static void dbg_kfree(void * v, int line) {
- unsigned int * sp = (unsigned int *)(((char *)v) - (sizeof(unsigned int) + KMEM_SAFETYZONE*8));
- unsigned int size = *sp;
- char * c1 = ((char *)v) - KMEM_SAFETYZONE*8;
- int i = 0;
- for (i = 0; i < KMEM_SAFETYZONE; i++) {
- if ( c1[0] != 'D' || c1[1] != 'E' || c1[2] != 'A' || c1[3] != 'D'
- || c1[4] != 'B' || c1[5] != 'E' || c1[6] != 'E' || c1[7] != 'F') {
- printk(KERN_INFO "kmalloced block at %p has been corrupted (underrun)!\n",v);
- printk(KERN_INFO " %4x: %2x %2x %2x %2x %2x %2x %2x %2x\n", i*8,
- c1[0],c1[1],c1[2],c1[3],c1[4],c1[5],c1[6],c1[7] );
- }
- c1 += 8;
- }
- c1 += size;
- for (i = 0; i < KMEM_SAFETYZONE; i++) {
- if ( c1[0] != 'M' || c1[1] != 'U' || c1[2] != 'N' || c1[3] != 'G'
- || c1[4] != 'W' || c1[5] != 'A' || c1[6] != 'L' || c1[7] != 'L'
- ) {
- printk(KERN_INFO "kmalloced block at %p has been corrupted (overrun):\n",v);
- printk(KERN_INFO " %4x: %2x %2x %2x %2x %2x %2x %2x %2x\n", i*8,
- c1[0],c1[1],c1[2],c1[3],c1[4],c1[5],c1[6],c1[7] );
- }
- c1 += 8;
- }
- printk(KERN_INFO "line %d kfree(%p)\n",line,v);
- v = ((char *)v) - (sizeof(unsigned int) + KMEM_SAFETYZONE*8);
- kfree(v);
-}
-
-#define kmalloc(x,y) dbg_kmalloc(x,y,__LINE__)
-#define kfree(x) dbg_kfree(x,__LINE__)
-*****************************************************************************/
-
/*
* Function Prototypes
*/
*/
static int wanrouter_device_setup(struct wan_device *wandev,
- wandev_conf_t *u_conf);
+ wandev_conf_t __user *u_conf);
static int wanrouter_device_stat(struct wan_device *wandev,
- wandev_stat_t *u_stat);
+ wandev_stat_t __user *u_stat);
static int wanrouter_device_shutdown(struct wan_device *wandev);
static int wanrouter_device_new_if(struct wan_device *wandev,
- wanif_conf_t *u_conf);
-static int wanrouter_device_del_if(struct wan_device *wandev, char *u_name);
+ wanif_conf_t __user *u_conf);
+static int wanrouter_device_del_if(struct wan_device *wandev,
+ char __user *u_name);
/*
* Miscellaneous
*/
-unsigned short wanrouter_type_trans(struct sk_buff *skb, struct net_device *dev)
+__be16 wanrouter_type_trans(struct sk_buff *skb, struct net_device *dev)
{
int cnt = skb->data[0] ? 0 : 1; /* there may be a pad present */
- unsigned short ethertype;
+ __be16 ethertype;
switch (skb->data[cnt]) {
case NLPID_IP: /* IP datagramm */
skb->data[cnt+3], dev->name);
return 0;
}
- ethertype = *((unsigned short*)&skb->data[cnt+4]);
+ ethertype = *((__be16*)&skb->data[cnt+4]);
cnt += 6;
break;
int err = 0;
struct proc_dir_entry *dent;
struct wan_device *wandev;
+ void __user *data = (void __user *)arg;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
switch (cmd) {
case ROUTER_SETUP:
- err = wanrouter_device_setup(wandev, (void*)arg);
+ err = wanrouter_device_setup(wandev, data);
break;
case ROUTER_DOWN:
break;
case ROUTER_STAT:
- err = wanrouter_device_stat(wandev, (void*)arg);
+ err = wanrouter_device_stat(wandev, data);
break;
case ROUTER_IFNEW:
- err = wanrouter_device_new_if(wandev, (void*)arg);
+ err = wanrouter_device_new_if(wandev, data);
break;
case ROUTER_IFDEL:
- err = wanrouter_device_del_if(wandev, (void*)arg);
+ err = wanrouter_device_del_if(wandev, data);
break;
case ROUTER_IFSTAT:
*/
static int wanrouter_device_setup(struct wan_device *wandev,
- wandev_conf_t *u_conf)
+ wandev_conf_t __user *u_conf)
{
void *data = NULL;
wandev_conf_t *conf;
*/
static int wanrouter_device_stat(struct wan_device *wandev,
- wandev_stat_t *u_stat)
+ wandev_stat_t __user *u_stat)
{
wandev_stat_t stat;
*/
static int wanrouter_device_new_if(struct wan_device *wandev,
- wanif_conf_t *u_conf)
+ wanif_conf_t __user *u_conf)
{
wanif_conf_t *cnf;
struct net_device *dev = NULL;
if (cnf->config_id == WANCONFIG_MPPP) {
#ifdef CONFIG_WANPIPE_MULTPPP
- pppdev = kmalloc(sizeof(struct ppp_device), GFP_KERNEL);
+ pppdev = kzalloc(sizeof(struct ppp_device), GFP_KERNEL);
err = -ENOBUFS;
if (pppdev == NULL)
goto out;
- memset(pppdev, 0, sizeof(struct ppp_device));
- pppdev->dev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
+ pppdev->dev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
if (pppdev->dev == NULL) {
kfree(pppdev);
err = -ENOBUFS;
goto out;
}
- memset(pppdev->dev, 0, sizeof(struct net_device));
err = wandev->new_if(wandev, (struct net_device *)pppdev, cnf);
dev = pppdev->dev;
#else
goto out;
#endif
} else {
- dev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
+ dev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
err = -ENOBUFS;
if (dev == NULL)
goto out;
- memset(dev, 0, sizeof(struct net_device));
err = wandev->new_if(wandev, dev, cnf);
}
}
/* This code has moved from del_if() function */
- if (dev->priv) {
- kfree(dev->priv);
- dev->priv = NULL;
- }
+ kfree(dev->priv);
+ dev->priv = NULL;
#ifdef CONFIG_WANPIPE_MULTPPP
if (cnf->config_id == WANCONFIG_MPPP)
* o copy configuration data to kernel address space
*/
-static int wanrouter_device_del_if(struct wan_device *wandev, char *u_name)
+static int wanrouter_device_del_if(struct wan_device *wandev, char __user *u_name)
{
char name[WAN_IFNAME_SZ + 1];
int err = 0;
/* Due to new interface linking method using dev->priv,
* this code has moved from del_if() function.*/
- if (dev->priv){
- kfree(dev->priv);
- dev->priv=NULL;
- }
+ kfree(dev->priv);
+ dev->priv=NULL;
unregister_netdev(dev);
git://git.onelab.eu / linux-2.6.git / blobdiff