|
@@ -2,7 +2,6 @@
|
|
|
|
|
|
/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
|
|
|
|
|
|
-
|
|
|
#include <linux/config.h>
|
|
|
#include <linux/string.h>
|
|
|
#include <linux/errno.h>
|
|
@@ -55,21 +54,23 @@ static struct atm_vcc *atmarpd;
|
|
|
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, unsigned long ip)
|
|
|
{
|
|
|
struct sock *sk;
|
|
|
struct atmarp_ctrl *ctrl;
|
|
|
struct sk_buff *skb;
|
|
|
|
|
|
- DPRINTK("to_atmarpd(%d)\n",type);
|
|
|
- if (!atmarpd) return -EUNATCH;
|
|
|
+ DPRINTK("to_atmarpd(%d)\n", type);
|
|
|
+ if (!atmarpd)
|
|
|
+ return -EUNATCH;
|
|
|
skb = alloc_skb(sizeof(struct atmarp_ctrl),GFP_ATOMIC);
|
|
|
- if (!skb) return -ENOMEM;
|
|
|
+ if (!skb)
|
|
|
+ return -ENOMEM;
|
|
|
ctrl = (struct atmarp_ctrl *) skb_put(skb,sizeof(struct atmarp_ctrl));
|
|
|
ctrl->type = type;
|
|
|
ctrl->itf_num = itf;
|
|
|
ctrl->ip = ip;
|
|
|
- atm_force_charge(atmarpd,skb->truesize);
|
|
|
+ atm_force_charge(atmarpd, skb->truesize);
|
|
|
|
|
|
sk = sk_atm(atmarpd);
|
|
|
skb_queue_tail(&sk->sk_receive_queue, skb);
|
|
@@ -77,26 +78,24 @@ static int to_atmarpd(enum atmarp_ctrl_type type,int itf,unsigned long ip)
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static void link_vcc(struct clip_vcc *clip_vcc,struct atmarp_entry *entry)
|
|
|
+static void link_vcc(struct clip_vcc *clip_vcc, struct atmarp_entry *entry)
|
|
|
{
|
|
|
- DPRINTK("link_vcc %p to entry %p (neigh %p)\n",clip_vcc,entry,
|
|
|
- entry->neigh);
|
|
|
+ DPRINTK("link_vcc %p to entry %p (neigh %p)\n", clip_vcc, entry,
|
|
|
+ entry->neigh);
|
|
|
clip_vcc->entry = entry;
|
|
|
- clip_vcc->xoff = 0; /* @@@ may overrun buffer by one packet */
|
|
|
+ clip_vcc->xoff = 0; /* @@@ may overrun buffer by one packet */
|
|
|
clip_vcc->next = entry->vccs;
|
|
|
entry->vccs = clip_vcc;
|
|
|
entry->neigh->used = jiffies;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
|
|
|
{
|
|
|
struct atmarp_entry *entry = clip_vcc->entry;
|
|
|
struct clip_vcc **walk;
|
|
|
|
|
|
if (!entry) {
|
|
|
- printk(KERN_CRIT "!clip_vcc->entry (clip_vcc %p)\n",clip_vcc);
|
|
|
+ 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() */
|
|
@@ -105,24 +104,24 @@ static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
|
|
|
if (*walk == clip_vcc) {
|
|
|
int error;
|
|
|
|
|
|
- *walk = clip_vcc->next; /* atomic */
|
|
|
+ *walk = clip_vcc->next; /* atomic */
|
|
|
clip_vcc->entry = NULL;
|
|
|
if (clip_vcc->xoff)
|
|
|
netif_wake_queue(entry->neigh->dev);
|
|
|
if (entry->vccs)
|
|
|
goto out;
|
|
|
- entry->expires = jiffies-1;
|
|
|
- /* force resolution or expiration */
|
|
|
+ entry->expires = jiffies - 1;
|
|
|
+ /* force resolution or expiration */
|
|
|
error = neigh_update(entry->neigh, NULL, NUD_NONE,
|
|
|
NEIGH_UPDATE_F_ADMIN);
|
|
|
if (error)
|
|
|
printk(KERN_CRIT "unlink_clip_vcc: "
|
|
|
- "neigh_update failed with %d\n",error);
|
|
|
+ "neigh_update failed with %d\n", error);
|
|
|
goto out;
|
|
|
}
|
|
|
printk(KERN_CRIT "ATMARP: unlink_clip_vcc failed (entry %p, vcc "
|
|
|
- "0x%p)\n",entry,clip_vcc);
|
|
|
-out:
|
|
|
+ "0x%p)\n", entry, clip_vcc);
|
|
|
+ out:
|
|
|
spin_unlock_bh(&entry->neigh->dev->xmit_lock);
|
|
|
}
|
|
|
|
|
@@ -151,13 +150,13 @@ static int neigh_check_cb(struct neighbour *n)
|
|
|
DPRINTK("destruction postponed with ref %d\n",
|
|
|
atomic_read(&n->refcnt));
|
|
|
|
|
|
- while ((skb = skb_dequeue(&n->arp_queue)) != NULL)
|
|
|
+ while ((skb = skb_dequeue(&n->arp_queue)) != NULL)
|
|
|
dev_kfree_skb(skb);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
- DPRINTK("expired neigh %p\n",n);
|
|
|
+ DPRINTK("expired neigh %p\n", n);
|
|
|
return 1;
|
|
|
}
|
|
|
|
|
@@ -165,7 +164,7 @@ static void idle_timer_check(unsigned long dummy)
|
|
|
{
|
|
|
write_lock(&clip_tbl.lock);
|
|
|
__neigh_for_each_release(&clip_tbl, neigh_check_cb);
|
|
|
- mod_timer(&idle_timer, jiffies+CLIP_CHECK_INTERVAL*HZ);
|
|
|
+ mod_timer(&idle_timer, jiffies + CLIP_CHECK_INTERVAL * HZ);
|
|
|
write_unlock(&clip_tbl.lock);
|
|
|
}
|
|
|
|
|
@@ -175,13 +174,13 @@ static int clip_arp_rcv(struct sk_buff *skb)
|
|
|
|
|
|
DPRINTK("clip_arp_rcv\n");
|
|
|
vcc = ATM_SKB(skb)->vcc;
|
|
|
- if (!vcc || !atm_charge(vcc,skb->truesize)) {
|
|
|
+ if (!vcc || !atm_charge(vcc, skb->truesize)) {
|
|
|
dev_kfree_skb_any(skb);
|
|
|
return 0;
|
|
|
}
|
|
|
- DPRINTK("pushing to %p\n",vcc);
|
|
|
- DPRINTK("using %p\n",CLIP_VCC(vcc)->old_push);
|
|
|
- CLIP_VCC(vcc)->old_push(vcc,skb);
|
|
|
+ DPRINTK("pushing to %p\n", vcc);
|
|
|
+ DPRINTK("using %p\n", CLIP_VCC(vcc)->old_push);
|
|
|
+ CLIP_VCC(vcc)->old_push(vcc, skb);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
@@ -191,34 +190,38 @@ static const unsigned char llc_oui[] = {
|
|
|
0x03, /* Ctrl: Unnumbered Information Command PDU */
|
|
|
0x00, /* OUI: EtherType */
|
|
|
0x00,
|
|
|
- 0x00 };
|
|
|
+ 0x00
|
|
|
+};
|
|
|
|
|
|
-static void clip_push(struct atm_vcc *vcc,struct sk_buff *skb)
|
|
|
+static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb)
|
|
|
{
|
|
|
struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
|
|
|
|
|
|
DPRINTK("clip push\n");
|
|
|
if (!skb) {
|
|
|
- DPRINTK("removing VCC %p\n",clip_vcc);
|
|
|
- if (clip_vcc->entry) unlink_clip_vcc(clip_vcc);
|
|
|
- clip_vcc->old_push(vcc,NULL); /* pass on the bad news */
|
|
|
+ DPRINTK("removing VCC %p\n", clip_vcc);
|
|
|
+ if (clip_vcc->entry)
|
|
|
+ unlink_clip_vcc(clip_vcc);
|
|
|
+ clip_vcc->old_push(vcc, NULL); /* pass on the bad news */
|
|
|
kfree(clip_vcc);
|
|
|
return;
|
|
|
}
|
|
|
- atm_return(vcc,skb->truesize);
|
|
|
+ atm_return(vcc, skb->truesize);
|
|
|
skb->dev = clip_vcc->entry ? clip_vcc->entry->neigh->dev : clip_devs;
|
|
|
- /* clip_vcc->entry == NULL if we don't have an IP address yet */
|
|
|
+ /* clip_vcc->entry == NULL if we don't have an IP address yet */
|
|
|
if (!skb->dev) {
|
|
|
dev_kfree_skb_any(skb);
|
|
|
return;
|
|
|
}
|
|
|
ATM_SKB(skb)->vcc = vcc;
|
|
|
skb->mac.raw = skb->data;
|
|
|
- if (!clip_vcc->encap || skb->len < RFC1483LLC_LEN || memcmp(skb->data,
|
|
|
- llc_oui,sizeof(llc_oui))) skb->protocol = htons(ETH_P_IP);
|
|
|
+ if (!clip_vcc->encap
|
|
|
+ || skb->len < RFC1483LLC_LEN
|
|
|
+ || memcmp(skb->data, llc_oui, sizeof (llc_oui)))
|
|
|
+ skb->protocol = htons(ETH_P_IP);
|
|
|
else {
|
|
|
skb->protocol = ((u16 *) skb->data)[3];
|
|
|
- skb_pull(skb,RFC1483LLC_LEN);
|
|
|
+ skb_pull(skb, RFC1483LLC_LEN);
|
|
|
if (skb->protocol == htons(ETH_P_ARP)) {
|
|
|
PRIV(skb->dev)->stats.rx_packets++;
|
|
|
PRIV(skb->dev)->stats.rx_bytes += skb->len;
|
|
@@ -233,58 +236,54 @@ static void clip_push(struct atm_vcc *vcc,struct sk_buff *skb)
|
|
|
netif_rx(skb);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
/*
|
|
|
* Note: these spinlocks _must_not_ block on non-SMP. The only goal is that
|
|
|
* clip_pop is atomic with respect to the critical section in clip_start_xmit.
|
|
|
*/
|
|
|
|
|
|
-
|
|
|
-static void clip_pop(struct atm_vcc *vcc,struct sk_buff *skb)
|
|
|
+static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb)
|
|
|
{
|
|
|
struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
|
|
|
struct net_device *dev = skb->dev;
|
|
|
int old;
|
|
|
unsigned long flags;
|
|
|
|
|
|
- DPRINTK("clip_pop(vcc %p)\n",vcc);
|
|
|
- clip_vcc->old_pop(vcc,skb);
|
|
|
+ DPRINTK("clip_pop(vcc %p)\n", vcc);
|
|
|
+ clip_vcc->old_pop(vcc, skb);
|
|
|
/* skb->dev == NULL in outbound ARP packets */
|
|
|
- if (!dev) return;
|
|
|
- spin_lock_irqsave(&PRIV(dev)->xoff_lock,flags);
|
|
|
- if (atm_may_send(vcc,0)) {
|
|
|
- old = xchg(&clip_vcc->xoff,0);
|
|
|
- if (old) netif_wake_queue(dev);
|
|
|
+ if (!dev)
|
|
|
+ return;
|
|
|
+ spin_lock_irqsave(&PRIV(dev)->xoff_lock, flags);
|
|
|
+ if (atm_may_send(vcc, 0)) {
|
|
|
+ old = xchg(&clip_vcc->xoff, 0);
|
|
|
+ if (old)
|
|
|
+ netif_wake_queue(dev);
|
|
|
}
|
|
|
- spin_unlock_irqrestore(&PRIV(dev)->xoff_lock,flags);
|
|
|
+ spin_unlock_irqrestore(&PRIV(dev)->xoff_lock, flags);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static void clip_neigh_destroy(struct neighbour *neigh)
|
|
|
{
|
|
|
- DPRINTK("clip_neigh_destroy (neigh %p)\n",neigh);
|
|
|
+ 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;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static void clip_neigh_solicit(struct neighbour *neigh,struct sk_buff *skb)
|
|
|
+static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb)
|
|
|
{
|
|
|
- DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n",neigh,skb);
|
|
|
- to_atmarpd(act_need,PRIV(neigh->dev)->number,NEIGH2ENTRY(neigh)->ip);
|
|
|
+ DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n", neigh, skb);
|
|
|
+ to_atmarpd(act_need, PRIV(neigh->dev)->number, NEIGH2ENTRY(neigh)->ip);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static void clip_neigh_error(struct neighbour *neigh,struct sk_buff *skb)
|
|
|
+static void clip_neigh_error(struct neighbour *neigh, struct sk_buff *skb)
|
|
|
{
|
|
|
#ifndef CONFIG_ATM_CLIP_NO_ICMP
|
|
|
- icmp_send(skb,ICMP_DEST_UNREACH,ICMP_HOST_UNREACH,0);
|
|
|
+ icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
|
|
|
#endif
|
|
|
kfree_skb(skb);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static struct neigh_ops clip_neigh_ops = {
|
|
|
.family = AF_INET,
|
|
|
.solicit = clip_neigh_solicit,
|
|
@@ -295,7 +294,6 @@ static struct neigh_ops clip_neigh_ops = {
|
|
|
.queue_xmit = dev_queue_xmit,
|
|
|
};
|
|
|
|
|
|
-
|
|
|
static int clip_constructor(struct neighbour *neigh)
|
|
|
{
|
|
|
struct atmarp_entry *entry = NEIGH2ENTRY(neigh);
|
|
@@ -303,9 +301,10 @@ static int clip_constructor(struct neighbour *neigh)
|
|
|
struct in_device *in_dev;
|
|
|
struct neigh_parms *parms;
|
|
|
|
|
|
- DPRINTK("clip_constructor (neigh %p, entry %p)\n",neigh,entry);
|
|
|
+ DPRINTK("clip_constructor (neigh %p, entry %p)\n", neigh, entry);
|
|
|
neigh->type = inet_addr_type(entry->ip);
|
|
|
- if (neigh->type != RTN_UNICAST) return -EINVAL;
|
|
|
+ if (neigh->type != RTN_UNICAST)
|
|
|
+ return -EINVAL;
|
|
|
|
|
|
rcu_read_lock();
|
|
|
in_dev = __in_dev_get_rcu(dev);
|
|
@@ -324,13 +323,13 @@ static int clip_constructor(struct neighbour *neigh)
|
|
|
neigh->ops->connected_output : neigh->ops->output;
|
|
|
entry->neigh = neigh;
|
|
|
entry->vccs = NULL;
|
|
|
- entry->expires = jiffies-1;
|
|
|
+ entry->expires = jiffies - 1;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
static u32 clip_hash(const void *pkey, const struct net_device *dev)
|
|
|
{
|
|
|
- return jhash_2words(*(u32 *)pkey, dev->ifindex, clip_tbl.hash_rnd);
|
|
|
+ return jhash_2words(*(u32 *) pkey, dev->ifindex, clip_tbl.hash_rnd);
|
|
|
}
|
|
|
|
|
|
static struct neigh_table clip_tbl = {
|
|
@@ -364,7 +363,6 @@ static struct neigh_table clip_tbl = {
|
|
|
.gc_thresh3 = 1024,
|
|
|
};
|
|
|
|
|
|
-
|
|
|
/* @@@ copy bh locking from arp.c -- need to bh-enable atm code before */
|
|
|
|
|
|
/*
|
|
@@ -374,15 +372,13 @@ static struct neigh_table clip_tbl = {
|
|
|
* clip_setentry.
|
|
|
*/
|
|
|
|
|
|
-
|
|
|
-static int clip_encap(struct atm_vcc *vcc,int mode)
|
|
|
+static int clip_encap(struct atm_vcc *vcc, int mode)
|
|
|
{
|
|
|
CLIP_VCC(vcc)->encap = mode;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
|
|
|
+static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
|
{
|
|
|
struct clip_priv *clip_priv = PRIV(dev);
|
|
|
struct atmarp_entry *entry;
|
|
@@ -390,7 +386,7 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
|
|
|
int old;
|
|
|
unsigned long flags;
|
|
|
|
|
|
- DPRINTK("clip_start_xmit (skb %p)\n",skb);
|
|
|
+ DPRINTK("clip_start_xmit (skb %p)\n", skb);
|
|
|
if (!skb->dst) {
|
|
|
printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
|
|
|
dev_kfree_skb(skb);
|
|
@@ -399,9 +395,9 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
|
|
|
}
|
|
|
if (!skb->dst->neighbour) {
|
|
|
#if 0
|
|
|
- skb->dst->neighbour = clip_find_neighbour(skb->dst,1);
|
|
|
+ skb->dst->neighbour = clip_find_neighbour(skb->dst, 1);
|
|
|
if (!skb->dst->neighbour) {
|
|
|
- dev_kfree_skb(skb); /* lost that one */
|
|
|
+ dev_kfree_skb(skb); /* lost that one */
|
|
|
clip_priv->stats.tx_dropped++;
|
|
|
return 0;
|
|
|
}
|
|
@@ -415,73 +411,73 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
|
|
|
if (!entry->vccs) {
|
|
|
if (time_after(jiffies, entry->expires)) {
|
|
|
/* should be resolved */
|
|
|
- entry->expires = jiffies+ATMARP_RETRY_DELAY*HZ;
|
|
|
- to_atmarpd(act_need,PRIV(dev)->number,entry->ip);
|
|
|
+ entry->expires = jiffies + ATMARP_RETRY_DELAY * HZ;
|
|
|
+ to_atmarpd(act_need, PRIV(dev)->number, entry->ip);
|
|
|
}
|
|
|
if (entry->neigh->arp_queue.qlen < ATMARP_MAX_UNRES_PACKETS)
|
|
|
- skb_queue_tail(&entry->neigh->arp_queue,skb);
|
|
|
+ skb_queue_tail(&entry->neigh->arp_queue, skb);
|
|
|
else {
|
|
|
dev_kfree_skb(skb);
|
|
|
clip_priv->stats.tx_dropped++;
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
- DPRINTK("neigh %p, vccs %p\n",entry,entry->vccs);
|
|
|
+ DPRINTK("neigh %p, vccs %p\n", entry, entry->vccs);
|
|
|
ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
|
|
|
- DPRINTK("using neighbour %p, vcc %p\n",skb->dst->neighbour,vcc);
|
|
|
+ DPRINTK("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
|
|
|
if (entry->vccs->encap) {
|
|
|
void *here;
|
|
|
|
|
|
- here = skb_push(skb,RFC1483LLC_LEN);
|
|
|
- memcpy(here,llc_oui,sizeof(llc_oui));
|
|
|
+ here = skb_push(skb, RFC1483LLC_LEN);
|
|
|
+ memcpy(here, llc_oui, sizeof(llc_oui));
|
|
|
((u16 *) here)[3] = skb->protocol;
|
|
|
}
|
|
|
atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
|
|
|
ATM_SKB(skb)->atm_options = vcc->atm_options;
|
|
|
entry->vccs->last_use = jiffies;
|
|
|
- DPRINTK("atm_skb(%p)->vcc(%p)->dev(%p)\n",skb,vcc,vcc->dev);
|
|
|
- old = xchg(&entry->vccs->xoff,1); /* assume XOFF ... */
|
|
|
+ DPRINTK("atm_skb(%p)->vcc(%p)->dev(%p)\n", skb, vcc, vcc->dev);
|
|
|
+ old = xchg(&entry->vccs->xoff, 1); /* assume XOFF ... */
|
|
|
if (old) {
|
|
|
printk(KERN_WARNING "clip_start_xmit: XOFF->XOFF transition\n");
|
|
|
return 0;
|
|
|
}
|
|
|
clip_priv->stats.tx_packets++;
|
|
|
clip_priv->stats.tx_bytes += skb->len;
|
|
|
- (void) vcc->send(vcc,skb);
|
|
|
- if (atm_may_send(vcc,0)) {
|
|
|
+ (void)vcc->send(vcc, skb);
|
|
|
+ if (atm_may_send(vcc, 0)) {
|
|
|
entry->vccs->xoff = 0;
|
|
|
return 0;
|
|
|
}
|
|
|
- spin_lock_irqsave(&clip_priv->xoff_lock,flags);
|
|
|
- netif_stop_queue(dev); /* XOFF -> throttle immediately */
|
|
|
+ spin_lock_irqsave(&clip_priv->xoff_lock, flags);
|
|
|
+ netif_stop_queue(dev); /* XOFF -> throttle immediately */
|
|
|
barrier();
|
|
|
if (!entry->vccs->xoff)
|
|
|
netif_start_queue(dev);
|
|
|
- /* Oh, we just raced with clip_pop. netif_start_queue should be
|
|
|
- good enough, because nothing should really be asleep because
|
|
|
- of the brief netif_stop_queue. If this isn't true or if it
|
|
|
- changes, use netif_wake_queue instead. */
|
|
|
- spin_unlock_irqrestore(&clip_priv->xoff_lock,flags);
|
|
|
+ /* Oh, we just raced with clip_pop. netif_start_queue should be
|
|
|
+ good enough, because nothing should really be asleep because
|
|
|
+ of the brief netif_stop_queue. If this isn't true or if it
|
|
|
+ changes, use netif_wake_queue instead. */
|
|
|
+ spin_unlock_irqrestore(&clip_priv->xoff_lock, flags);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static struct net_device_stats *clip_get_stats(struct net_device *dev)
|
|
|
{
|
|
|
return &PRIV(dev)->stats;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static int clip_mkip(struct atm_vcc *vcc,int timeout)
|
|
|
+static int clip_mkip(struct atm_vcc *vcc, int timeout)
|
|
|
{
|
|
|
struct clip_vcc *clip_vcc;
|
|
|
struct sk_buff_head copy;
|
|
|
struct sk_buff *skb;
|
|
|
|
|
|
- if (!vcc->push) return -EBADFD;
|
|
|
- clip_vcc = kmalloc(sizeof(struct clip_vcc),GFP_KERNEL);
|
|
|
- if (!clip_vcc) return -ENOMEM;
|
|
|
- DPRINTK("mkip clip_vcc %p vcc %p\n",clip_vcc,vcc);
|
|
|
+ if (!vcc->push)
|
|
|
+ return -EBADFD;
|
|
|
+ clip_vcc = kmalloc(sizeof(struct clip_vcc), GFP_KERNEL);
|
|
|
+ if (!clip_vcc)
|
|
|
+ return -ENOMEM;
|
|
|
+ DPRINTK("mkip clip_vcc %p vcc %p\n", clip_vcc, vcc);
|
|
|
clip_vcc->vcc = vcc;
|
|
|
vcc->user_back = clip_vcc;
|
|
|
set_bit(ATM_VF_IS_CLIP, &vcc->flags);
|
|
@@ -489,7 +485,7 @@ static int clip_mkip(struct atm_vcc *vcc,int timeout)
|
|
|
clip_vcc->xoff = 0;
|
|
|
clip_vcc->encap = 1;
|
|
|
clip_vcc->last_use = jiffies;
|
|
|
- clip_vcc->idle_timeout = timeout*HZ;
|
|
|
+ clip_vcc->idle_timeout = timeout * HZ;
|
|
|
clip_vcc->old_push = vcc->push;
|
|
|
clip_vcc->old_pop = vcc->pop;
|
|
|
vcc->push = clip_push;
|
|
@@ -499,27 +495,25 @@ static int clip_mkip(struct atm_vcc *vcc,int timeout)
|
|
|
/* re-process everything received between connection setup and MKIP */
|
|
|
while ((skb = skb_dequeue(©)) != NULL)
|
|
|
if (!clip_devs) {
|
|
|
- atm_return(vcc,skb->truesize);
|
|
|
+ atm_return(vcc, skb->truesize);
|
|
|
kfree_skb(skb);
|
|
|
- }
|
|
|
- else {
|
|
|
+ } else {
|
|
|
unsigned int len = skb->len;
|
|
|
|
|
|
- clip_push(vcc,skb);
|
|
|
+ clip_push(vcc, skb);
|
|
|
PRIV(skb->dev)->stats.rx_packets--;
|
|
|
PRIV(skb->dev)->stats.rx_bytes -= len;
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static int clip_setentry(struct atm_vcc *vcc,u32 ip)
|
|
|
+static int clip_setentry(struct atm_vcc *vcc, u32 ip)
|
|
|
{
|
|
|
struct neighbour *neigh;
|
|
|
struct atmarp_entry *entry;
|
|
|
int error;
|
|
|
struct clip_vcc *clip_vcc;
|
|
|
- struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip, .tos = 1 } } };
|
|
|
+ struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip, .tos = 1}} };
|
|
|
struct rtable *rt;
|
|
|
|
|
|
if (vcc->push != clip_push) {
|
|
@@ -536,28 +530,29 @@ static int clip_setentry(struct atm_vcc *vcc,u32 ip)
|
|
|
unlink_clip_vcc(clip_vcc);
|
|
|
return 0;
|
|
|
}
|
|
|
- error = ip_route_output_key(&rt,&fl);
|
|
|
- if (error) return error;
|
|
|
- neigh = __neigh_lookup(&clip_tbl,&ip,rt->u.dst.dev,1);
|
|
|
+ error = ip_route_output_key(&rt, &fl);
|
|
|
+ if (error)
|
|
|
+ return error;
|
|
|
+ neigh = __neigh_lookup(&clip_tbl, &ip, rt->u.dst.dev, 1);
|
|
|
ip_rt_put(rt);
|
|
|
if (!neigh)
|
|
|
return -ENOMEM;
|
|
|
entry = NEIGH2ENTRY(neigh);
|
|
|
if (entry != clip_vcc->entry) {
|
|
|
- if (!clip_vcc->entry) DPRINTK("setentry: add\n");
|
|
|
+ if (!clip_vcc->entry)
|
|
|
+ DPRINTK("setentry: add\n");
|
|
|
else {
|
|
|
DPRINTK("setentry: update\n");
|
|
|
unlink_clip_vcc(clip_vcc);
|
|
|
}
|
|
|
- link_vcc(clip_vcc,entry);
|
|
|
+ link_vcc(clip_vcc, entry);
|
|
|
}
|
|
|
- error = neigh_update(neigh, llc_oui, NUD_PERMANENT,
|
|
|
- NEIGH_UPDATE_F_OVERRIDE|NEIGH_UPDATE_F_ADMIN);
|
|
|
+ error = neigh_update(neigh, llc_oui, NUD_PERMANENT,
|
|
|
+ NEIGH_UPDATE_F_OVERRIDE | NEIGH_UPDATE_F_ADMIN);
|
|
|
neigh_release(neigh);
|
|
|
return error;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static void clip_setup(struct net_device *dev)
|
|
|
{
|
|
|
dev->hard_start_xmit = clip_start_xmit;
|
|
@@ -566,15 +561,14 @@ static void clip_setup(struct net_device *dev)
|
|
|
dev->type = ARPHRD_ATM;
|
|
|
dev->hard_header_len = RFC1483LLC_LEN;
|
|
|
dev->mtu = RFC1626_MTU;
|
|
|
- dev->tx_queue_len = 100; /* "normal" queue (packets) */
|
|
|
- /* When using a "real" qdisc, the qdisc determines the queue */
|
|
|
- /* length. tx_queue_len is only used for the default case, */
|
|
|
- /* without any more elaborate queuing. 100 is a reasonable */
|
|
|
- /* compromise between decent burst-tolerance and protection */
|
|
|
- /* against memory hogs. */
|
|
|
+ dev->tx_queue_len = 100; /* "normal" queue (packets) */
|
|
|
+ /* When using a "real" qdisc, the qdisc determines the queue */
|
|
|
+ /* length. tx_queue_len is only used for the default case, */
|
|
|
+ /* without any more elaborate queuing. 100 is a reasonable */
|
|
|
+ /* compromise between decent burst-tolerance and protection */
|
|
|
+ /* against memory hogs. */
|
|
|
}
|
|
|
|
|
|
-
|
|
|
static int clip_create(int number)
|
|
|
{
|
|
|
struct net_device *dev;
|
|
@@ -583,19 +577,19 @@ static int clip_create(int number)
|
|
|
|
|
|
if (number != -1) {
|
|
|
for (dev = clip_devs; dev; dev = PRIV(dev)->next)
|
|
|
- if (PRIV(dev)->number == number) return -EEXIST;
|
|
|
- }
|
|
|
- else {
|
|
|
+ if (PRIV(dev)->number == number)
|
|
|
+ return -EEXIST;
|
|
|
+ } else {
|
|
|
number = 0;
|
|
|
for (dev = clip_devs; dev; dev = PRIV(dev)->next)
|
|
|
if (PRIV(dev)->number >= number)
|
|
|
- number = PRIV(dev)->number+1;
|
|
|
+ number = PRIV(dev)->number + 1;
|
|
|
}
|
|
|
dev = alloc_netdev(sizeof(struct clip_priv), "", clip_setup);
|
|
|
if (!dev)
|
|
|
return -ENOMEM;
|
|
|
clip_priv = PRIV(dev);
|
|
|
- sprintf(dev->name,"atm%d",number);
|
|
|
+ sprintf(dev->name, "atm%d", number);
|
|
|
spin_lock_init(&clip_priv->xoff_lock);
|
|
|
clip_priv->number = number;
|
|
|
error = register_netdev(dev);
|
|
@@ -605,12 +599,11 @@ static int clip_create(int number)
|
|
|
}
|
|
|
clip_priv->next = clip_devs;
|
|
|
clip_devs = dev;
|
|
|
- DPRINTK("registered (net:%s)\n",dev->name);
|
|
|
+ DPRINTK("registered (net:%s)\n", dev->name);
|
|
|
return number;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static int clip_device_event(struct notifier_block *this,unsigned long event,
|
|
|
+static int clip_device_event(struct notifier_block *this, unsigned long event,
|
|
|
void *arg)
|
|
|
{
|
|
|
struct net_device *dev = arg;
|
|
@@ -625,40 +618,39 @@ static int clip_device_event(struct notifier_block *this,unsigned long event,
|
|
|
return NOTIFY_DONE;
|
|
|
|
|
|
switch (event) {
|
|
|
- case NETDEV_UP:
|
|
|
- DPRINTK("clip_device_event NETDEV_UP\n");
|
|
|
- (void) 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);
|
|
|
- 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);
|
|
|
- break;
|
|
|
+ case NETDEV_UP:
|
|
|
+ DPRINTK("clip_device_event NETDEV_UP\n");
|
|
|
+ (void)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);
|
|
|
+ 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);
|
|
|
+ break;
|
|
|
}
|
|
|
return NOTIFY_DONE;
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-static int clip_inet_event(struct notifier_block *this,unsigned long event,
|
|
|
- void *ifa)
|
|
|
+static int clip_inet_event(struct notifier_block *this, unsigned long event,
|
|
|
+ void *ifa)
|
|
|
{
|
|
|
struct in_device *in_dev;
|
|
|
|
|
|
- in_dev = ((struct in_ifaddr *) ifa)->ifa_dev;
|
|
|
+ in_dev = ((struct in_ifaddr *)ifa)->ifa_dev;
|
|
|
if (!in_dev || !in_dev->dev) {
|
|
|
printk(KERN_WARNING "clip_inet_event: no device\n");
|
|
|
return NOTIFY_DONE;
|
|
@@ -667,8 +659,9 @@ static int clip_inet_event(struct notifier_block *this,unsigned long event,
|
|
|
* Transitions are of the down-change-up type, so it's sufficient to
|
|
|
* handle the change on up.
|
|
|
*/
|
|
|
- if (event != NETDEV_UP) return NOTIFY_DONE;
|
|
|
- return clip_device_event(this,NETDEV_CHANGE,in_dev->dev);
|
|
|
+ if (event != NETDEV_UP)
|
|
|
+ return NOTIFY_DONE;
|
|
|
+ return clip_device_event(this, NETDEV_CHANGE, in_dev->dev);
|
|
|
}
|
|
|
|
|
|
|
|
@@ -744,53 +737,53 @@ static int clip_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
|
|
int err = 0;
|
|
|
|
|
|
switch (cmd) {
|
|
|
- case SIOCMKCLIP:
|
|
|
- case ATMARPD_CTRL:
|
|
|
- case ATMARP_MKIP:
|
|
|
- case ATMARP_SETENTRY:
|
|
|
- case ATMARP_ENCAP:
|
|
|
- if (!capable(CAP_NET_ADMIN))
|
|
|
- return -EPERM;
|
|
|
- break;
|
|
|
- default:
|
|
|
- return -ENOIOCTLCMD;
|
|
|
+ case SIOCMKCLIP:
|
|
|
+ case ATMARPD_CTRL:
|
|
|
+ case ATMARP_MKIP:
|
|
|
+ case ATMARP_SETENTRY:
|
|
|
+ case ATMARP_ENCAP:
|
|
|
+ if (!capable(CAP_NET_ADMIN))
|
|
|
+ return -EPERM;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ return -ENOIOCTLCMD;
|
|
|
}
|
|
|
|
|
|
switch (cmd) {
|
|
|
- case SIOCMKCLIP:
|
|
|
- err = clip_create(arg);
|
|
|
- break;
|
|
|
- case ATMARPD_CTRL:
|
|
|
- err = atm_init_atmarp(vcc);
|
|
|
- if (!err) {
|
|
|
- sock->state = SS_CONNECTED;
|
|
|
- __module_get(THIS_MODULE);
|
|
|
- }
|
|
|
- break;
|
|
|
- case ATMARP_MKIP:
|
|
|
- err = clip_mkip(vcc ,arg);
|
|
|
- break;
|
|
|
- case ATMARP_SETENTRY:
|
|
|
- err = clip_setentry(vcc, arg);
|
|
|
- break;
|
|
|
- case ATMARP_ENCAP:
|
|
|
- err = clip_encap(vcc, arg);
|
|
|
- break;
|
|
|
+ case SIOCMKCLIP:
|
|
|
+ err = clip_create(arg);
|
|
|
+ break;
|
|
|
+ case ATMARPD_CTRL:
|
|
|
+ err = atm_init_atmarp(vcc);
|
|
|
+ if (!err) {
|
|
|
+ sock->state = SS_CONNECTED;
|
|
|
+ __module_get(THIS_MODULE);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case ATMARP_MKIP:
|
|
|
+ err = clip_mkip(vcc, arg);
|
|
|
+ break;
|
|
|
+ case ATMARP_SETENTRY:
|
|
|
+ err = clip_setentry(vcc, arg);
|
|
|
+ break;
|
|
|
+ case ATMARP_ENCAP:
|
|
|
+ err = clip_encap(vcc, arg);
|
|
|
+ break;
|
|
|
}
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
static struct atm_ioctl clip_ioctl_ops = {
|
|
|
- .owner = THIS_MODULE,
|
|
|
- .ioctl = clip_ioctl,
|
|
|
+ .owner = THIS_MODULE,
|
|
|
+ .ioctl = clip_ioctl,
|
|
|
};
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
|
|
static void svc_addr(struct seq_file *seq, struct sockaddr_atmsvc *addr)
|
|
|
{
|
|
|
- static int code[] = { 1,2,10,6,1,0 };
|
|
|
- static int e164[] = { 1,8,4,6,1,0 };
|
|
|
+ static int code[] = { 1, 2, 10, 6, 1, 0 };
|
|
|
+ static int e164[] = { 1, 8, 4, 6, 1, 0 };
|
|
|
|
|
|
if (*addr->sas_addr.pub) {
|
|
|
seq_printf(seq, "%s", addr->sas_addr.pub);
|
|
@@ -809,7 +802,7 @@ static void svc_addr(struct seq_file *seq, struct sockaddr_atmsvc *addr)
|
|
|
for (i = 0; fields[i]; i++) {
|
|
|
for (j = fields[i]; j; j--)
|
|
|
seq_printf(seq, "%02X", *prv++);
|
|
|
- if (fields[i+1])
|
|
|
+ if (fields[i + 1])
|
|
|
seq_putc(seq, '.');
|
|
|
}
|
|
|
}
|
|
@@ -828,8 +821,7 @@ static void atmarp_info(struct seq_file *seq, struct net_device *dev,
|
|
|
svc = ((clip_vcc == SEQ_NO_VCC_TOKEN) ||
|
|
|
(sk_atm(clip_vcc->vcc)->sk_family == AF_ATMSVC));
|
|
|
|
|
|
- llc = ((clip_vcc == SEQ_NO_VCC_TOKEN) ||
|
|
|
- clip_vcc->encap);
|
|
|
+ llc = ((clip_vcc == SEQ_NO_VCC_TOKEN) || clip_vcc->encap);
|
|
|
|
|
|
if (clip_vcc == SEQ_NO_VCC_TOKEN)
|
|
|
exp = entry->neigh->used;
|
|
@@ -839,10 +831,7 @@ static void atmarp_info(struct seq_file *seq, struct net_device *dev,
|
|
|
exp = (jiffies - exp) / HZ;
|
|
|
|
|
|
seq_printf(seq, "%-6s%-4s%-4s%5ld ",
|
|
|
- dev->name,
|
|
|
- svc ? "SVC" : "PVC",
|
|
|
- llc ? "LLC" : "NULL",
|
|
|
- exp);
|
|
|
+ dev->name, svc ? "SVC" : "PVC", llc ? "LLC" : "NULL", exp);
|
|
|
|
|
|
off = scnprintf(buf, sizeof(buf) - 1, "%d.%d.%d.%d",
|
|
|
NIPQUAD(entry->ip));
|
|
@@ -860,8 +849,7 @@ static void atmarp_info(struct seq_file *seq, struct net_device *dev,
|
|
|
} else if (!svc) {
|
|
|
seq_printf(seq, "%d.%d.%d\n",
|
|
|
clip_vcc->vcc->dev->number,
|
|
|
- clip_vcc->vcc->vpi,
|
|
|
- clip_vcc->vcc->vci);
|
|
|
+ clip_vcc->vcc->vpi, clip_vcc->vcc->vci);
|
|
|
} else {
|
|
|
svc_addr(seq, &clip_vcc->vcc->remote);
|
|
|
seq_putc(seq, '\n');
|
|
@@ -894,7 +882,7 @@ static struct clip_vcc *clip_seq_next_vcc(struct atmarp_entry *e,
|
|
|
}
|
|
|
|
|
|
static void *clip_seq_vcc_walk(struct clip_seq_state *state,
|
|
|
- struct atmarp_entry *e, loff_t *pos)
|
|
|
+ struct atmarp_entry *e, loff_t * pos)
|
|
|
{
|
|
|
struct clip_vcc *vcc = state->vcc;
|
|
|
|
|
@@ -911,24 +899,24 @@ static void *clip_seq_vcc_walk(struct clip_seq_state *state,
|
|
|
|
|
|
return vcc;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
static void *clip_seq_sub_iter(struct neigh_seq_state *_state,
|
|
|
- struct neighbour *n, loff_t *pos)
|
|
|
+ struct neighbour *n, loff_t * pos)
|
|
|
{
|
|
|
- struct clip_seq_state *state = (struct clip_seq_state *) _state;
|
|
|
+ struct clip_seq_state *state = (struct clip_seq_state *)_state;
|
|
|
|
|
|
return clip_seq_vcc_walk(state, NEIGH2ENTRY(n), pos);
|
|
|
}
|
|
|
|
|
|
-static void *clip_seq_start(struct seq_file *seq, loff_t *pos)
|
|
|
+static void *clip_seq_start(struct seq_file *seq, loff_t * pos)
|
|
|
{
|
|
|
return neigh_seq_start(seq, pos, &clip_tbl, NEIGH_SEQ_NEIGH_ONLY);
|
|
|
}
|
|
|
|
|
|
static int clip_seq_show(struct seq_file *seq, void *v)
|
|
|
{
|
|
|
- static char atm_arp_banner[] =
|
|
|
- "IPitf TypeEncp Idle IP address ATM address\n";
|
|
|
+ static char atm_arp_banner[] =
|
|
|
+ "IPitf TypeEncp Idle IP address ATM address\n";
|
|
|
|
|
|
if (v == SEQ_START_TOKEN) {
|
|
|
seq_puts(seq, atm_arp_banner);
|
|
@@ -939,7 +927,7 @@ static int clip_seq_show(struct seq_file *seq, void *v)
|
|
|
|
|
|
atmarp_info(seq, n->dev, NEIGH2ENTRY(n), vcc);
|
|
|
}
|
|
|
- return 0;
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
static struct seq_operations arp_seq_ops = {
|
|
@@ -998,13 +986,13 @@ static int __init atm_clip_init(void)
|
|
|
setup_timer(&idle_timer, idle_timer_check, 0);
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
-{
|
|
|
- struct proc_dir_entry *p;
|
|
|
+ {
|
|
|
+ struct proc_dir_entry *p;
|
|
|
|
|
|
- p = create_proc_entry("arp", S_IRUGO, atm_proc_root);
|
|
|
- if (p)
|
|
|
- p->proc_fops = &arp_seq_fops;
|
|
|
-}
|
|
|
+ p = create_proc_entry("arp", S_IRUGO, atm_proc_root);
|
|
|
+ if (p)
|
|
|
+ p->proc_fops = &arp_seq_fops;
|
|
|
+ }
|
|
|
#endif
|
|
|
|
|
|
return 0;
|