/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
-#include <linux/config.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/kernel.h> /* for UINT_MAX */
#include <linux/if.h> /* for IFF_UP */
#include <linux/inetdevice.h>
#include <linux/bitops.h>
+#include <linux/poison.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/rcupdate.h>
#include "common.h"
#include "resources.h"
-#include "ipcommon.h"
#include <net/atmclip.h>
static struct neigh_table clip_tbl;
static struct timer_list idle_timer;
-static int to_atmarpd(enum atmarp_ctrl_type type, int itf, unsigned long ip)
+static int to_atmarpd(enum atmarp_ctrl_type type, int itf, __be32 ip)
{
struct sock *sk;
struct atmarp_ctrl *ctrl;
printk(KERN_CRIT "!clip_vcc->entry (clip_vcc %p)\n", clip_vcc);
return;
}
- spin_lock_bh(&entry->neigh->dev->xmit_lock); /* block clip_start_xmit() */
+ netif_tx_lock_bh(entry->neigh->dev); /* block clip_start_xmit() */
entry->neigh->used = jiffies;
for (walk = &entry->vccs; *walk; walk = &(*walk)->next)
if (*walk == clip_vcc) {
printk(KERN_CRIT "ATMARP: unlink_clip_vcc failed (entry %p, vcc "
"0x%p)\n", entry, clip_vcc);
out:
- spin_unlock_bh(&entry->neigh->dev->xmit_lock);
+ netif_tx_unlock_bh(entry->neigh->dev);
}
/* The neighbour entry n->lock is held. */
|| memcmp(skb->data, llc_oui, sizeof (llc_oui)))
skb->protocol = htons(ETH_P_IP);
else {
- skb->protocol = ((u16 *) skb->data)[3];
+ skb->protocol = ((__be16 *) skb->data)[3];
skb_pull(skb, RFC1483LLC_LEN);
if (skb->protocol == htons(ETH_P_ARP)) {
PRIV(skb->dev)->stats.rx_packets++;
DPRINTK("clip_neigh_destroy (neigh %p)\n", neigh);
if (NEIGH2ENTRY(neigh)->vccs)
printk(KERN_CRIT "clip_neigh_destroy: vccs != NULL !!!\n");
- NEIGH2ENTRY(neigh)->vccs = (void *) 0xdeadbeef;
+ NEIGH2ENTRY(neigh)->vccs = (void *) NEIGHBOR_DEAD;
}
static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb)
here = skb_push(skb, RFC1483LLC_LEN);
memcpy(here, llc_oui, sizeof(llc_oui));
- ((u16 *) here)[3] = skb->protocol;
+ ((__be16 *) here)[3] = skb->protocol;
}
atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
ATM_SKB(skb)->atm_options = vcc->atm_options;
}
clip_priv->stats.tx_packets++;
clip_priv->stats.tx_bytes += skb->len;
- (void)vcc->send(vcc, skb);
+ vcc->send(vcc, skb);
if (atm_may_send(vcc, 0)) {
entry->vccs->xoff = 0;
return 0;
static int clip_mkip(struct atm_vcc *vcc, int timeout)
{
struct clip_vcc *clip_vcc;
- struct sk_buff_head copy;
struct sk_buff *skb;
+ struct sk_buff_head *rq;
+ unsigned long flags;
if (!vcc->push)
return -EBADFD;
clip_vcc->old_pop = vcc->pop;
vcc->push = clip_push;
vcc->pop = clip_pop;
- skb_queue_head_init(©);
- skb_migrate(&sk_atm(vcc)->sk_receive_queue, ©);
+
+ rq = &sk_atm(vcc)->sk_receive_queue;
+
+ spin_lock_irqsave(&rq->lock, flags);
+ if (skb_queue_empty(rq)) {
+ skb = NULL;
+ } else {
+ /* NULL terminate the list. */
+ rq->prev->next = NULL;
+ skb = rq->next;
+ }
+ rq->prev = rq->next = (struct sk_buff *)rq;
+ rq->qlen = 0;
+ spin_unlock_irqrestore(&rq->lock, flags);
+
/* re-process everything received between connection setup and MKIP */
- while ((skb = skb_dequeue(©)) != NULL)
+ while (skb) {
+ struct sk_buff *next = skb->next;
+
+ skb->next = skb->prev = NULL;
if (!clip_devs) {
atm_return(vcc, skb->truesize);
kfree_skb(skb);
} else {
unsigned int len = skb->len;
+ skb_get(skb);
clip_push(vcc, skb);
PRIV(skb->dev)->stats.rx_packets--;
PRIV(skb->dev)->stats.rx_bytes -= len;
+ kfree_skb(skb);
}
+
+ skb = next;
+ }
return 0;
}
-static int clip_setentry(struct atm_vcc *vcc, u32 ip)
+static int clip_setentry(struct atm_vcc *vcc, __be32 ip)
{
struct neighbour *neigh;
struct atmarp_entry *entry;
switch (event) {
case NETDEV_UP:
DPRINTK("clip_device_event NETDEV_UP\n");
- (void)to_atmarpd(act_up, PRIV(dev)->number, 0);
+ to_atmarpd(act_up, PRIV(dev)->number, 0);
break;
case NETDEV_GOING_DOWN:
DPRINTK("clip_device_event NETDEV_DOWN\n");
- (void)to_atmarpd(act_down, PRIV(dev)->number, 0);
+ to_atmarpd(act_down, PRIV(dev)->number, 0);
break;
case NETDEV_CHANGE:
case NETDEV_CHANGEMTU:
DPRINTK("clip_device_event NETDEV_CHANGE*\n");
- (void)to_atmarpd(act_change, PRIV(dev)->number, 0);
- break;
- case NETDEV_REBOOT:
- case NETDEV_REGISTER:
- case NETDEV_DOWN:
- DPRINTK("clip_device_event %ld\n", event);
- /* ignore */
- break;
- default:
- printk(KERN_WARNING "clip_device_event: unknown event "
- "%ld\n", event);
+ to_atmarpd(act_change, PRIV(dev)->number, 0);
break;
}
return NOTIFY_DONE;
static struct notifier_block clip_dev_notifier = {
- clip_device_event,
- NULL,
- 0
+ .notifier_call = clip_device_event,
};
static struct notifier_block clip_inet_notifier = {
- clip_inet_event,
- NULL,
- 0
+ .notifier_call = clip_inet_event,
};
err = clip_mkip(vcc, arg);
break;
case ATMARP_SETENTRY:
- err = clip_setentry(vcc, arg);
+ err = clip_setentry(vcc, (__force __be32)arg);
break;
case ATMARP_ENCAP:
err = clip_encap(vcc, arg);
struct seq_file *seq;
int rc = -EAGAIN;
- state = kmalloc(sizeof(*state), GFP_KERNEL);
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state) {
rc = -ENOMEM;
goto out_kfree;
}
- memset(state, 0, sizeof(*state));
state->ns.neigh_sub_iter = clip_seq_sub_iter;
rc = seq_open(file, &arp_seq_ops);
static int __init atm_clip_init(void)
{
- neigh_table_init(&clip_tbl);
+ neigh_table_init_no_netlink(&clip_tbl);
clip_tbl_hook = &clip_tbl;
register_atm_ioctl(&clip_ioctl_ops);
module_init(atm_clip_init);
module_exit(atm_clip_exit);
-
+MODULE_AUTHOR("Werner Almesberger");
+MODULE_DESCRIPTION("Classical/IP over ATM interface");
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff