[ATM] clip: run through Lindent
Run CLIP driver through Lindent script to fix formatting. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
David S. Miller
parent
2d9073922b
commit
e49e76db03
410
net/atm/clip.c
410
net/atm/clip.c
@ -2,7 +2,6 @@
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/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
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#include <linux/config.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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@ -55,21 +54,23 @@ static struct atm_vcc *atmarpd;
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static struct neigh_table clip_tbl;
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static struct timer_list idle_timer;
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static int to_atmarpd(enum atmarp_ctrl_type type,int itf,unsigned long ip)
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static int to_atmarpd(enum atmarp_ctrl_type type, int itf, unsigned long ip)
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{
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struct sock *sk;
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struct atmarp_ctrl *ctrl;
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struct sk_buff *skb;
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DPRINTK("to_atmarpd(%d)\n",type);
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if (!atmarpd) return -EUNATCH;
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DPRINTK("to_atmarpd(%d)\n", type);
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if (!atmarpd)
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return -EUNATCH;
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skb = alloc_skb(sizeof(struct atmarp_ctrl),GFP_ATOMIC);
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if (!skb) return -ENOMEM;
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if (!skb)
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return -ENOMEM;
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ctrl = (struct atmarp_ctrl *) skb_put(skb,sizeof(struct atmarp_ctrl));
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ctrl->type = type;
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ctrl->itf_num = itf;
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ctrl->ip = ip;
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atm_force_charge(atmarpd,skb->truesize);
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atm_force_charge(atmarpd, skb->truesize);
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sk = sk_atm(atmarpd);
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skb_queue_tail(&sk->sk_receive_queue, skb);
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@ -77,26 +78,24 @@ static int to_atmarpd(enum atmarp_ctrl_type type,int itf,unsigned long ip)
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return 0;
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}
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static void link_vcc(struct clip_vcc *clip_vcc,struct atmarp_entry *entry)
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static void link_vcc(struct clip_vcc *clip_vcc, struct atmarp_entry *entry)
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{
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DPRINTK("link_vcc %p to entry %p (neigh %p)\n",clip_vcc,entry,
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entry->neigh);
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DPRINTK("link_vcc %p to entry %p (neigh %p)\n", clip_vcc, entry,
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entry->neigh);
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clip_vcc->entry = entry;
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clip_vcc->xoff = 0; /* @@@ may overrun buffer by one packet */
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clip_vcc->xoff = 0; /* @@@ may overrun buffer by one packet */
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clip_vcc->next = entry->vccs;
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entry->vccs = clip_vcc;
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entry->neigh->used = jiffies;
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}
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static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
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{
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struct atmarp_entry *entry = clip_vcc->entry;
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struct clip_vcc **walk;
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if (!entry) {
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printk(KERN_CRIT "!clip_vcc->entry (clip_vcc %p)\n",clip_vcc);
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printk(KERN_CRIT "!clip_vcc->entry (clip_vcc %p)\n", clip_vcc);
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return;
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}
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spin_lock_bh(&entry->neigh->dev->xmit_lock); /* block clip_start_xmit() */
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@ -105,24 +104,24 @@ static void unlink_clip_vcc(struct clip_vcc *clip_vcc)
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if (*walk == clip_vcc) {
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int error;
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*walk = clip_vcc->next; /* atomic */
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*walk = clip_vcc->next; /* atomic */
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clip_vcc->entry = NULL;
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if (clip_vcc->xoff)
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netif_wake_queue(entry->neigh->dev);
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if (entry->vccs)
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goto out;
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entry->expires = jiffies-1;
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/* force resolution or expiration */
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entry->expires = jiffies - 1;
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/* force resolution or expiration */
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error = neigh_update(entry->neigh, NULL, NUD_NONE,
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NEIGH_UPDATE_F_ADMIN);
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if (error)
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printk(KERN_CRIT "unlink_clip_vcc: "
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"neigh_update failed with %d\n",error);
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"neigh_update failed with %d\n", error);
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goto out;
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}
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printk(KERN_CRIT "ATMARP: unlink_clip_vcc failed (entry %p, vcc "
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"0x%p)\n",entry,clip_vcc);
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out:
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"0x%p)\n", entry, clip_vcc);
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out:
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spin_unlock_bh(&entry->neigh->dev->xmit_lock);
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}
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@ -151,13 +150,13 @@ static int neigh_check_cb(struct neighbour *n)
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DPRINTK("destruction postponed with ref %d\n",
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atomic_read(&n->refcnt));
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while ((skb = skb_dequeue(&n->arp_queue)) != NULL)
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while ((skb = skb_dequeue(&n->arp_queue)) != NULL)
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dev_kfree_skb(skb);
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return 0;
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}
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DPRINTK("expired neigh %p\n",n);
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DPRINTK("expired neigh %p\n", n);
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return 1;
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}
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@ -165,7 +164,7 @@ static void idle_timer_check(unsigned long dummy)
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{
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write_lock(&clip_tbl.lock);
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__neigh_for_each_release(&clip_tbl, neigh_check_cb);
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mod_timer(&idle_timer, jiffies+CLIP_CHECK_INTERVAL*HZ);
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mod_timer(&idle_timer, jiffies + CLIP_CHECK_INTERVAL * HZ);
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write_unlock(&clip_tbl.lock);
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}
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@ -175,13 +174,13 @@ static int clip_arp_rcv(struct sk_buff *skb)
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DPRINTK("clip_arp_rcv\n");
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vcc = ATM_SKB(skb)->vcc;
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if (!vcc || !atm_charge(vcc,skb->truesize)) {
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if (!vcc || !atm_charge(vcc, skb->truesize)) {
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dev_kfree_skb_any(skb);
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return 0;
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}
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DPRINTK("pushing to %p\n",vcc);
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DPRINTK("using %p\n",CLIP_VCC(vcc)->old_push);
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CLIP_VCC(vcc)->old_push(vcc,skb);
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DPRINTK("pushing to %p\n", vcc);
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DPRINTK("using %p\n", CLIP_VCC(vcc)->old_push);
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CLIP_VCC(vcc)->old_push(vcc, skb);
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return 0;
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}
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@ -191,34 +190,38 @@ static const unsigned char llc_oui[] = {
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0x03, /* Ctrl: Unnumbered Information Command PDU */
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0x00, /* OUI: EtherType */
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0x00,
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0x00 };
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0x00
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};
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static void clip_push(struct atm_vcc *vcc,struct sk_buff *skb)
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static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb)
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{
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struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
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DPRINTK("clip push\n");
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if (!skb) {
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DPRINTK("removing VCC %p\n",clip_vcc);
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if (clip_vcc->entry) unlink_clip_vcc(clip_vcc);
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clip_vcc->old_push(vcc,NULL); /* pass on the bad news */
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DPRINTK("removing VCC %p\n", clip_vcc);
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if (clip_vcc->entry)
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unlink_clip_vcc(clip_vcc);
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clip_vcc->old_push(vcc, NULL); /* pass on the bad news */
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kfree(clip_vcc);
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return;
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}
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atm_return(vcc,skb->truesize);
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atm_return(vcc, skb->truesize);
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skb->dev = clip_vcc->entry ? clip_vcc->entry->neigh->dev : clip_devs;
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/* clip_vcc->entry == NULL if we don't have an IP address yet */
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/* clip_vcc->entry == NULL if we don't have an IP address yet */
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if (!skb->dev) {
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dev_kfree_skb_any(skb);
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return;
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}
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ATM_SKB(skb)->vcc = vcc;
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skb->mac.raw = skb->data;
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if (!clip_vcc->encap || skb->len < RFC1483LLC_LEN || memcmp(skb->data,
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llc_oui,sizeof(llc_oui))) skb->protocol = htons(ETH_P_IP);
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if (!clip_vcc->encap
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|| skb->len < RFC1483LLC_LEN
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|| memcmp(skb->data, llc_oui, sizeof (llc_oui)))
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skb->protocol = htons(ETH_P_IP);
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else {
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skb->protocol = ((u16 *) skb->data)[3];
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skb_pull(skb,RFC1483LLC_LEN);
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skb_pull(skb, RFC1483LLC_LEN);
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if (skb->protocol == htons(ETH_P_ARP)) {
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PRIV(skb->dev)->stats.rx_packets++;
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PRIV(skb->dev)->stats.rx_bytes += skb->len;
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@ -233,58 +236,54 @@ static void clip_push(struct atm_vcc *vcc,struct sk_buff *skb)
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netif_rx(skb);
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}
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/*
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* Note: these spinlocks _must_not_ block on non-SMP. The only goal is that
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* clip_pop is atomic with respect to the critical section in clip_start_xmit.
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*/
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static void clip_pop(struct atm_vcc *vcc,struct sk_buff *skb)
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static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb)
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{
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struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
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struct net_device *dev = skb->dev;
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int old;
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unsigned long flags;
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DPRINTK("clip_pop(vcc %p)\n",vcc);
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clip_vcc->old_pop(vcc,skb);
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DPRINTK("clip_pop(vcc %p)\n", vcc);
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clip_vcc->old_pop(vcc, skb);
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/* skb->dev == NULL in outbound ARP packets */
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if (!dev) return;
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spin_lock_irqsave(&PRIV(dev)->xoff_lock,flags);
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if (atm_may_send(vcc,0)) {
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old = xchg(&clip_vcc->xoff,0);
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if (old) netif_wake_queue(dev);
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if (!dev)
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return;
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spin_lock_irqsave(&PRIV(dev)->xoff_lock, flags);
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if (atm_may_send(vcc, 0)) {
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old = xchg(&clip_vcc->xoff, 0);
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if (old)
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netif_wake_queue(dev);
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}
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spin_unlock_irqrestore(&PRIV(dev)->xoff_lock,flags);
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spin_unlock_irqrestore(&PRIV(dev)->xoff_lock, flags);
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}
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static void clip_neigh_destroy(struct neighbour *neigh)
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{
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DPRINTK("clip_neigh_destroy (neigh %p)\n",neigh);
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DPRINTK("clip_neigh_destroy (neigh %p)\n", neigh);
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if (NEIGH2ENTRY(neigh)->vccs)
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printk(KERN_CRIT "clip_neigh_destroy: vccs != NULL !!!\n");
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NEIGH2ENTRY(neigh)->vccs = (void *) 0xdeadbeef;
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}
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static void clip_neigh_solicit(struct neighbour *neigh,struct sk_buff *skb)
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static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb)
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{
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DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n",neigh,skb);
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to_atmarpd(act_need,PRIV(neigh->dev)->number,NEIGH2ENTRY(neigh)->ip);
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DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n", neigh, skb);
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to_atmarpd(act_need, PRIV(neigh->dev)->number, NEIGH2ENTRY(neigh)->ip);
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}
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static void clip_neigh_error(struct neighbour *neigh,struct sk_buff *skb)
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static void clip_neigh_error(struct neighbour *neigh, struct sk_buff *skb)
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{
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#ifndef CONFIG_ATM_CLIP_NO_ICMP
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icmp_send(skb,ICMP_DEST_UNREACH,ICMP_HOST_UNREACH,0);
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icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
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#endif
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kfree_skb(skb);
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}
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static struct neigh_ops clip_neigh_ops = {
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.family = AF_INET,
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.solicit = clip_neigh_solicit,
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@ -295,7 +294,6 @@ static struct neigh_ops clip_neigh_ops = {
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.queue_xmit = dev_queue_xmit,
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};
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static int clip_constructor(struct neighbour *neigh)
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{
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struct atmarp_entry *entry = NEIGH2ENTRY(neigh);
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@ -303,9 +301,10 @@ static int clip_constructor(struct neighbour *neigh)
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struct in_device *in_dev;
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struct neigh_parms *parms;
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DPRINTK("clip_constructor (neigh %p, entry %p)\n",neigh,entry);
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DPRINTK("clip_constructor (neigh %p, entry %p)\n", neigh, entry);
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neigh->type = inet_addr_type(entry->ip);
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if (neigh->type != RTN_UNICAST) return -EINVAL;
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if (neigh->type != RTN_UNICAST)
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return -EINVAL;
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rcu_read_lock();
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in_dev = __in_dev_get_rcu(dev);
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@ -324,13 +323,13 @@ static int clip_constructor(struct neighbour *neigh)
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neigh->ops->connected_output : neigh->ops->output;
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entry->neigh = neigh;
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entry->vccs = NULL;
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entry->expires = jiffies-1;
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entry->expires = jiffies - 1;
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return 0;
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}
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static u32 clip_hash(const void *pkey, const struct net_device *dev)
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{
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return jhash_2words(*(u32 *)pkey, dev->ifindex, clip_tbl.hash_rnd);
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return jhash_2words(*(u32 *) pkey, dev->ifindex, clip_tbl.hash_rnd);
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}
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static struct neigh_table clip_tbl = {
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@ -364,7 +363,6 @@ static struct neigh_table clip_tbl = {
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.gc_thresh3 = 1024,
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};
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/* @@@ copy bh locking from arp.c -- need to bh-enable atm code before */
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/*
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@ -374,15 +372,13 @@ static struct neigh_table clip_tbl = {
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* clip_setentry.
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*/
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static int clip_encap(struct atm_vcc *vcc,int mode)
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static int clip_encap(struct atm_vcc *vcc, int mode)
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{
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CLIP_VCC(vcc)->encap = mode;
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return 0;
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}
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static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
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static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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struct clip_priv *clip_priv = PRIV(dev);
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struct atmarp_entry *entry;
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@ -390,7 +386,7 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
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int old;
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unsigned long flags;
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DPRINTK("clip_start_xmit (skb %p)\n",skb);
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DPRINTK("clip_start_xmit (skb %p)\n", skb);
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if (!skb->dst) {
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printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
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dev_kfree_skb(skb);
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@ -399,9 +395,9 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
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}
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if (!skb->dst->neighbour) {
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#if 0
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skb->dst->neighbour = clip_find_neighbour(skb->dst,1);
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skb->dst->neighbour = clip_find_neighbour(skb->dst, 1);
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if (!skb->dst->neighbour) {
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dev_kfree_skb(skb); /* lost that one */
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dev_kfree_skb(skb); /* lost that one */
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clip_priv->stats.tx_dropped++;
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return 0;
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}
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@ -415,73 +411,73 @@ static int clip_start_xmit(struct sk_buff *skb,struct net_device *dev)
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if (!entry->vccs) {
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if (time_after(jiffies, entry->expires)) {
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/* should be resolved */
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entry->expires = jiffies+ATMARP_RETRY_DELAY*HZ;
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to_atmarpd(act_need,PRIV(dev)->number,entry->ip);
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entry->expires = jiffies + ATMARP_RETRY_DELAY * HZ;
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to_atmarpd(act_need, PRIV(dev)->number, entry->ip);
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}
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if (entry->neigh->arp_queue.qlen < ATMARP_MAX_UNRES_PACKETS)
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skb_queue_tail(&entry->neigh->arp_queue,skb);
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skb_queue_tail(&entry->neigh->arp_queue, skb);
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else {
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dev_kfree_skb(skb);
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clip_priv->stats.tx_dropped++;
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}
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return 0;
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}
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DPRINTK("neigh %p, vccs %p\n",entry,entry->vccs);
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DPRINTK("neigh %p, vccs %p\n", entry, entry->vccs);
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ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
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DPRINTK("using neighbour %p, vcc %p\n",skb->dst->neighbour,vcc);
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DPRINTK("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
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if (entry->vccs->encap) {
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void *here;
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here = skb_push(skb,RFC1483LLC_LEN);
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memcpy(here,llc_oui,sizeof(llc_oui));
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here = skb_push(skb, RFC1483LLC_LEN);
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memcpy(here, llc_oui, sizeof(llc_oui));
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((u16 *) here)[3] = skb->protocol;
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}
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atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
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ATM_SKB(skb)->atm_options = vcc->atm_options;
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entry->vccs->last_use = jiffies;
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DPRINTK("atm_skb(%p)->vcc(%p)->dev(%p)\n",skb,vcc,vcc->dev);
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old = xchg(&entry->vccs->xoff,1); /* assume XOFF ... */
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DPRINTK("atm_skb(%p)->vcc(%p)->dev(%p)\n", skb, vcc, vcc->dev);
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old = xchg(&entry->vccs->xoff, 1); /* assume XOFF ... */
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if (old) {
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printk(KERN_WARNING "clip_start_xmit: XOFF->XOFF transition\n");
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return 0;
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}
|
||||
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;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user