| 1 |
1275 |
phoenix |
/* net/atm/common.c - ATM sockets (common part for PVC and SVC) */
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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/module.h>
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#include <linux/kmod.h>
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#include <linux/net.h> /* struct socket, struct net_proto, struct
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proto_ops */
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#include <linux/atm.h> /* ATM stuff */
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#include <linux/atmdev.h>
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#include <linux/atmclip.h> /* CLIP_*ENCAP */
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#include <linux/atmarp.h> /* manifest constants */
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#include <linux/sonet.h> /* for ioctls */
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#include <linux/socket.h> /* SOL_SOCKET */
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#include <linux/errno.h> /* error codes */
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#include <linux/capability.h>
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#include <linux/mm.h> /* verify_area */
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#include <linux/sched.h>
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#include <linux/time.h> /* struct timeval */
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#include <linux/skbuff.h>
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#include <linux/bitops.h>
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#include <linux/init.h>
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#include <net/sock.h> /* struct sock */
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#include <asm/uaccess.h>
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#include <asm/atomic.h>
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#include <asm/poll.h>
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#include <asm/ioctls.h>
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#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
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#include <linux/atmlec.h>
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#include "lec.h"
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#include "lec_arpc.h"
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struct atm_lane_ops *atm_lane_ops;
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static DECLARE_MUTEX(atm_lane_ops_mutex);
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void atm_lane_ops_set(struct atm_lane_ops *hook)
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{
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down(&atm_lane_ops_mutex);
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atm_lane_ops = hook;
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up(&atm_lane_ops_mutex);
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}
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int try_atm_lane_ops(void)
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{
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down(&atm_lane_ops_mutex);
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if (atm_lane_ops && try_inc_mod_count(atm_lane_ops->owner)) {
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up(&atm_lane_ops_mutex);
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return 1;
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}
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up(&atm_lane_ops_mutex);
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return 0;
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}
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#if defined(CONFIG_ATM_LANE_MODULE) || defined(CONFIG_ATM_MPOA_MODULE)
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EXPORT_SYMBOL(atm_lane_ops);
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EXPORT_SYMBOL(try_atm_lane_ops);
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EXPORT_SYMBOL(atm_lane_ops_set);
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#endif
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#endif
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#if defined(CONFIG_ATM_MPOA) || defined(CONFIG_ATM_MPOA_MODULE)
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#include <linux/atmmpc.h>
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#include "mpc.h"
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struct atm_mpoa_ops *atm_mpoa_ops;
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static DECLARE_MUTEX(atm_mpoa_ops_mutex);
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void atm_mpoa_ops_set(struct atm_mpoa_ops *hook)
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{
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down(&atm_mpoa_ops_mutex);
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atm_mpoa_ops = hook;
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up(&atm_mpoa_ops_mutex);
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}
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int try_atm_mpoa_ops(void)
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{
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down(&atm_mpoa_ops_mutex);
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if (atm_mpoa_ops && try_inc_mod_count(atm_mpoa_ops->owner)) {
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up(&atm_mpoa_ops_mutex);
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return 1;
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}
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up(&atm_mpoa_ops_mutex);
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return 0;
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}
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#ifdef CONFIG_ATM_MPOA_MODULE
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EXPORT_SYMBOL(atm_mpoa_ops);
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EXPORT_SYMBOL(try_atm_mpoa_ops);
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EXPORT_SYMBOL(atm_mpoa_ops_set);
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#endif
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#endif
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#if defined(CONFIG_ATM_TCP) || defined(CONFIG_ATM_TCP_MODULE)
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#include <linux/atm_tcp.h>
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#ifdef CONFIG_ATM_TCP_MODULE
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struct atm_tcp_ops atm_tcp_ops;
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EXPORT_SYMBOL(atm_tcp_ops);
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#endif
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#endif
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#if defined(CONFIG_ATM_CLIP) || defined(CONFIG_ATM_CLIP_MODULE)
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#include <net/atmclip.h>
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struct atm_clip_ops *atm_clip_ops;
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static DECLARE_MUTEX(atm_clip_ops_mutex);
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void atm_clip_ops_set(struct atm_clip_ops *hook)
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{
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down(&atm_clip_ops_mutex);
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atm_clip_ops = hook;
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up(&atm_clip_ops_mutex);
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}
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int try_atm_clip_ops(void)
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{
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down(&atm_clip_ops_mutex);
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if (atm_clip_ops && try_inc_mod_count(atm_clip_ops->owner)) {
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up(&atm_clip_ops_mutex);
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return 1;
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}
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up(&atm_clip_ops_mutex);
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return 0;
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}
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#ifdef CONFIG_ATM_CLIP_MODULE
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EXPORT_SYMBOL(atm_clip_ops);
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EXPORT_SYMBOL(try_atm_clip_ops);
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EXPORT_SYMBOL(atm_clip_ops_set);
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#endif
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#endif
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#if defined(CONFIG_PPPOATM) || defined(CONFIG_PPPOATM_MODULE)
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static DECLARE_MUTEX(pppoatm_ioctl_mutex);
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static int (*pppoatm_ioctl_hook)(struct atm_vcc *, unsigned int, unsigned long);
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void pppoatm_ioctl_set(int (*hook)(struct atm_vcc *, unsigned int, unsigned long))
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{
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down(&pppoatm_ioctl_mutex);
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pppoatm_ioctl_hook = hook;
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up(&pppoatm_ioctl_mutex);
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}
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#ifdef CONFIG_PPPOATM_MODULE
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EXPORT_SYMBOL(pppoatm_ioctl_set);
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#endif
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#endif
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#if defined(CONFIG_ATM_BR2684) || defined(CONFIG_ATM_BR2684_MODULE)
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static DECLARE_MUTEX(br2684_ioctl_mutex);
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static int (*br2684_ioctl_hook)(struct atm_vcc *, unsigned int, unsigned long);
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void br2684_ioctl_set(int (*hook)(struct atm_vcc *, unsigned int, unsigned long))
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{
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down(&br2684_ioctl_mutex);
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br2684_ioctl_hook = hook;
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up(&br2684_ioctl_mutex);
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}
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#ifdef CONFIG_ATM_BR2684_MODULE
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EXPORT_SYMBOL(br2684_ioctl_set);
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#endif
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#endif
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#include "resources.h" /* atm_find_dev */
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#include "common.h" /* prototypes */
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#include "protocols.h" /* atm_init_<transport> */
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#include "addr.h" /* address registry */
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#ifdef CONFIG_ATM_CLIP
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#include <net/atmclip.h> /* for clip_create */
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#endif
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#include "signaling.h" /* for WAITING and sigd_attach */
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#if 0
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#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
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#else
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#define DPRINTK(format,args...)
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#endif
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struct sock *vcc_sklist;
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rwlock_t vcc_sklist_lock = RW_LOCK_UNLOCKED;
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void __vcc_insert_socket(struct sock *sk)
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{
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sk->next = vcc_sklist;
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if (sk->next)
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vcc_sklist->pprev = &sk->next;
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vcc_sklist = sk;
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sk->pprev = &vcc_sklist;
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}
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void vcc_insert_socket(struct sock *sk)
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{
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write_lock_irq(&vcc_sklist_lock);
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__vcc_insert_socket(sk);
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write_unlock_irq(&vcc_sklist_lock);
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}
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void vcc_remove_socket(struct sock *sk)
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{
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write_lock_irq(&vcc_sklist_lock);
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if (sk->pprev) {
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if (sk->next)
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sk->next->pprev = sk->pprev;
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*sk->pprev = sk->next;
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sk->pprev = NULL;
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}
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write_unlock_irq(&vcc_sklist_lock);
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}
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static struct sk_buff *alloc_tx(struct atm_vcc *vcc,unsigned int size)
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{
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struct sk_buff *skb;
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if (atomic_read(&vcc->sk->wmem_alloc) && !atm_may_send(vcc,size)) {
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DPRINTK("Sorry: wmem_alloc = %d, size = %d, sndbuf = %d\n",
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atomic_read(&vcc->sk->wmem_alloc),size,vcc->sk->sndbuf);
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return NULL;
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}
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while (!(skb = alloc_skb(size,GFP_KERNEL))) schedule();
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DPRINTK("AlTx %d += %d\n",atomic_read(&vcc->sk->wmem_alloc),skb->truesize);
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atomic_add(skb->truesize, &vcc->sk->wmem_alloc);
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return skb;
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}
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EXPORT_SYMBOL(vcc_sklist);
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EXPORT_SYMBOL(vcc_sklist_lock);
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EXPORT_SYMBOL(vcc_insert_socket);
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EXPORT_SYMBOL(vcc_remove_socket);
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static void vcc_sock_destruct(struct sock *sk)
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{
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struct atm_vcc *vcc = sk->protinfo.af_atm;
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if (atomic_read(&vcc->sk->rmem_alloc))
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printk(KERN_DEBUG "vcc_sock_destruct: rmem leakage (%d bytes) detected.\n", atomic_read(&sk->rmem_alloc));
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if (atomic_read(&vcc->sk->wmem_alloc))
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printk(KERN_DEBUG "vcc_sock_destruct: wmem leakage (%d bytes) detected.\n", atomic_read(&sk->wmem_alloc));
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| 244 |
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kfree(sk->protinfo.af_atm);
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| 246 |
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MOD_DEC_USE_COUNT;
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}
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| 248 |
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| 249 |
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int vcc_create(struct socket *sock, int protocol, int family)
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{
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| 251 |
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struct sock *sk;
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| 252 |
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struct atm_vcc *vcc;
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| 253 |
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| 254 |
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sock->sk = NULL;
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if (sock->type == SOCK_STREAM)
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return -EINVAL;
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| 257 |
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sk = sk_alloc(family, GFP_KERNEL, 1);
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| 258 |
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if (!sk)
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| 259 |
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return -ENOMEM;
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| 260 |
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sock_init_data(NULL, sk);
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| 261 |
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| 262 |
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vcc = sk->protinfo.af_atm = kmalloc(sizeof(*vcc), GFP_KERNEL);
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| 263 |
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if (!vcc) {
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| 264 |
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sk_free(sk);
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| 265 |
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return -ENOMEM;
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| 266 |
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}
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| 267 |
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| 268 |
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memset(vcc, 0, sizeof(*vcc));
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| 269 |
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vcc->sk = sk;
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| 270 |
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| 271 |
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vcc->dev = NULL;
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| 272 |
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vcc->callback = NULL;
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| 273 |
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memset(&vcc->local,0,sizeof(struct sockaddr_atmsvc));
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| 274 |
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memset(&vcc->remote,0,sizeof(struct sockaddr_atmsvc));
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| 275 |
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vcc->qos.txtp.max_sdu = 1 << 16; /* for meta VCs */
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| 276 |
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atomic_set(&vcc->sk->wmem_alloc,0);
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| 277 |
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atomic_set(&vcc->sk->rmem_alloc,0);
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| 278 |
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vcc->push = NULL;
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| 279 |
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vcc->pop = NULL;
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| 280 |
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vcc->push_oam = NULL;
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| 281 |
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vcc->vpi = vcc->vci = 0; /* no VCI/VPI yet */
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| 282 |
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vcc->atm_options = vcc->aal_options = 0;
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| 283 |
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init_waitqueue_head(&vcc->sleep);
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| 284 |
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sk->sleep = &vcc->sleep;
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| 285 |
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sk->destruct = vcc_sock_destruct;
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| 286 |
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sock->sk = sk;
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| 287 |
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| 288 |
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MOD_INC_USE_COUNT;
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| 289 |
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| 290 |
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return 0;
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| 291 |
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}
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| 292 |
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|
| 293 |
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| 294 |
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static void vcc_destroy_socket(struct sock *sk)
|
| 295 |
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{
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| 296 |
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struct atm_vcc *vcc;
|
| 297 |
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struct sk_buff *skb;
|
| 298 |
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|
| 299 |
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vcc = sk->protinfo.af_atm;
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| 300 |
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clear_bit(ATM_VF_READY, &vcc->flags);
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| 301 |
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if (vcc->dev) {
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| 302 |
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if (vcc->dev->ops->close)
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| 303 |
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vcc->dev->ops->close(vcc);
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| 304 |
|
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if (vcc->push)
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| 305 |
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vcc->push(vcc, NULL); /* atmarpd has no push */
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| 306 |
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| 307 |
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vcc_remove_socket(sk); /* no more receive */
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| 308 |
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| 309 |
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while ((skb = skb_dequeue(&vcc->sk->receive_queue))) {
|
| 310 |
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atm_return(vcc,skb->truesize);
|
| 311 |
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kfree_skb(skb);
|
| 312 |
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}
|
| 313 |
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| 314 |
|
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if (vcc->dev->ops->owner)
|
| 315 |
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__MOD_DEC_USE_COUNT(vcc->dev->ops->owner);
|
| 316 |
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atm_dev_put(vcc->dev);
|
| 317 |
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}
|
| 318 |
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}
|
| 319 |
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| 320 |
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|
| 321 |
|
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int vcc_release(struct socket *sock)
|
| 322 |
|
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{
|
| 323 |
|
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struct sock *sk = sock->sk;
|
| 324 |
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| 325 |
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if (sk) {
|
| 326 |
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lock_sock(sk);
|
| 327 |
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vcc_destroy_socket(sock->sk);
|
| 328 |
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release_sock(sk);
|
| 329 |
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sock_put(sk);
|
| 330 |
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}
|
| 331 |
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| 332 |
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return 0;
|
| 333 |
|
|
}
|
| 334 |
|
|
|
| 335 |
|
|
|
| 336 |
|
|
void vcc_release_async(struct atm_vcc *vcc, int reply)
|
| 337 |
|
|
{
|
| 338 |
|
|
set_bit(ATM_VF_CLOSE, &vcc->flags);
|
| 339 |
|
|
vcc->reply = reply;
|
| 340 |
|
|
vcc->sk->err = -reply;
|
| 341 |
|
|
wake_up(&vcc->sleep);
|
| 342 |
|
|
}
|
| 343 |
|
|
|
| 344 |
|
|
|
| 345 |
|
|
EXPORT_SYMBOL(vcc_release_async);
|
| 346 |
|
|
|
| 347 |
|
|
|
| 348 |
|
|
static int adjust_tp(struct atm_trafprm *tp,unsigned char aal)
|
| 349 |
|
|
{
|
| 350 |
|
|
int max_sdu;
|
| 351 |
|
|
|
| 352 |
|
|
if (!tp->traffic_class) return 0;
|
| 353 |
|
|
switch (aal) {
|
| 354 |
|
|
case ATM_AAL0:
|
| 355 |
|
|
max_sdu = ATM_CELL_SIZE-1;
|
| 356 |
|
|
break;
|
| 357 |
|
|
case ATM_AAL34:
|
| 358 |
|
|
max_sdu = ATM_MAX_AAL34_PDU;
|
| 359 |
|
|
break;
|
| 360 |
|
|
default:
|
| 361 |
|
|
printk(KERN_WARNING "ATM: AAL problems ... "
|
| 362 |
|
|
"(%d)\n",aal);
|
| 363 |
|
|
/* fall through */
|
| 364 |
|
|
case ATM_AAL5:
|
| 365 |
|
|
max_sdu = ATM_MAX_AAL5_PDU;
|
| 366 |
|
|
}
|
| 367 |
|
|
if (!tp->max_sdu) tp->max_sdu = max_sdu;
|
| 368 |
|
|
else if (tp->max_sdu > max_sdu) return -EINVAL;
|
| 369 |
|
|
if (!tp->max_cdv) tp->max_cdv = ATM_MAX_CDV;
|
| 370 |
|
|
return 0;
|
| 371 |
|
|
}
|
| 372 |
|
|
|
| 373 |
|
|
|
| 374 |
|
|
static int __vcc_connect(struct atm_vcc *vcc, struct atm_dev *dev, int vpi,
|
| 375 |
|
|
int vci)
|
| 376 |
|
|
{
|
| 377 |
|
|
int error;
|
| 378 |
|
|
|
| 379 |
|
|
if ((vpi != ATM_VPI_UNSPEC && vpi != ATM_VPI_ANY &&
|
| 380 |
|
|
vpi >> dev->ci_range.vpi_bits) || (vci != ATM_VCI_UNSPEC &&
|
| 381 |
|
|
vci != ATM_VCI_ANY && vci >> dev->ci_range.vci_bits))
|
| 382 |
|
|
return -EINVAL;
|
| 383 |
|
|
if (vci > 0 && vci < ATM_NOT_RSV_VCI && !capable(CAP_NET_BIND_SERVICE))
|
| 384 |
|
|
return -EPERM;
|
| 385 |
|
|
error = 0;
|
| 386 |
|
|
if (!try_inc_mod_count(dev->ops->owner))
|
| 387 |
|
|
return -ENODEV;
|
| 388 |
|
|
vcc->dev = dev;
|
| 389 |
|
|
vcc_insert_socket(vcc->sk);
|
| 390 |
|
|
switch (vcc->qos.aal) {
|
| 391 |
|
|
case ATM_AAL0:
|
| 392 |
|
|
error = atm_init_aal0(vcc);
|
| 393 |
|
|
vcc->stats = &dev->stats.aal0;
|
| 394 |
|
|
break;
|
| 395 |
|
|
case ATM_AAL34:
|
| 396 |
|
|
error = atm_init_aal34(vcc);
|
| 397 |
|
|
vcc->stats = &dev->stats.aal34;
|
| 398 |
|
|
break;
|
| 399 |
|
|
case ATM_NO_AAL:
|
| 400 |
|
|
/* ATM_AAL5 is also used in the "0 for default" case */
|
| 401 |
|
|
vcc->qos.aal = ATM_AAL5;
|
| 402 |
|
|
/* fall through */
|
| 403 |
|
|
case ATM_AAL5:
|
| 404 |
|
|
error = atm_init_aal5(vcc);
|
| 405 |
|
|
vcc->stats = &dev->stats.aal5;
|
| 406 |
|
|
break;
|
| 407 |
|
|
default:
|
| 408 |
|
|
error = -EPROTOTYPE;
|
| 409 |
|
|
}
|
| 410 |
|
|
if (!error) error = adjust_tp(&vcc->qos.txtp,vcc->qos.aal);
|
| 411 |
|
|
if (!error) error = adjust_tp(&vcc->qos.rxtp,vcc->qos.aal);
|
| 412 |
|
|
if (error)
|
| 413 |
|
|
goto fail;
|
| 414 |
|
|
DPRINTK("VCC %d.%d, AAL %d\n",vpi,vci,vcc->qos.aal);
|
| 415 |
|
|
DPRINTK(" TX: %d, PCR %d..%d, SDU %d\n",vcc->qos.txtp.traffic_class,
|
| 416 |
|
|
vcc->qos.txtp.min_pcr,vcc->qos.txtp.max_pcr,vcc->qos.txtp.max_sdu);
|
| 417 |
|
|
DPRINTK(" RX: %d, PCR %d..%d, SDU %d\n",vcc->qos.rxtp.traffic_class,
|
| 418 |
|
|
vcc->qos.rxtp.min_pcr,vcc->qos.rxtp.max_pcr,vcc->qos.rxtp.max_sdu);
|
| 419 |
|
|
if (dev->ops->open) {
|
| 420 |
|
|
if ((error = dev->ops->open(vcc,vpi,vci)))
|
| 421 |
|
|
goto fail;
|
| 422 |
|
|
}
|
| 423 |
|
|
return 0;
|
| 424 |
|
|
|
| 425 |
|
|
fail:
|
| 426 |
|
|
vcc_remove_socket(vcc->sk);
|
| 427 |
|
|
if (dev->ops->owner)
|
| 428 |
|
|
__MOD_DEC_USE_COUNT(dev->ops->owner);
|
| 429 |
|
|
/* ensure we get dev module ref count correct */
|
| 430 |
|
|
vcc->dev = NULL;
|
| 431 |
|
|
return error;
|
| 432 |
|
|
|
| 433 |
|
|
}
|
| 434 |
|
|
|
| 435 |
|
|
|
| 436 |
|
|
int vcc_connect(struct socket *sock, int itf, short vpi, int vci)
|
| 437 |
|
|
{
|
| 438 |
|
|
struct atm_dev *dev;
|
| 439 |
|
|
struct atm_vcc *vcc = ATM_SD(sock);
|
| 440 |
|
|
int error;
|
| 441 |
|
|
|
| 442 |
|
|
DPRINTK("vcc_connect (vpi %d, vci %d)\n",vpi,vci);
|
| 443 |
|
|
if (sock->state == SS_CONNECTED)
|
| 444 |
|
|
return -EISCONN;
|
| 445 |
|
|
if (sock->state != SS_UNCONNECTED)
|
| 446 |
|
|
return -EINVAL;
|
| 447 |
|
|
if (!(vpi || vci))
|
| 448 |
|
|
return -EINVAL;
|
| 449 |
|
|
|
| 450 |
|
|
if (vpi != ATM_VPI_UNSPEC && vci != ATM_VCI_UNSPEC)
|
| 451 |
|
|
clear_bit(ATM_VF_PARTIAL,&vcc->flags);
|
| 452 |
|
|
else
|
| 453 |
|
|
if (test_bit(ATM_VF_PARTIAL,&vcc->flags))
|
| 454 |
|
|
return -EINVAL;
|
| 455 |
|
|
DPRINTK("vcc_connect (TX: cl %d,bw %d-%d,sdu %d; "
|
| 456 |
|
|
"RX: cl %d,bw %d-%d,sdu %d,AAL %s%d)\n",
|
| 457 |
|
|
vcc->qos.txtp.traffic_class,vcc->qos.txtp.min_pcr,
|
| 458 |
|
|
vcc->qos.txtp.max_pcr,vcc->qos.txtp.max_sdu,
|
| 459 |
|
|
vcc->qos.rxtp.traffic_class,vcc->qos.rxtp.min_pcr,
|
| 460 |
|
|
vcc->qos.rxtp.max_pcr,vcc->qos.rxtp.max_sdu,
|
| 461 |
|
|
vcc->qos.aal == ATM_AAL5 ? "" : vcc->qos.aal == ATM_AAL0 ? "" :
|
| 462 |
|
|
" ??? code ",vcc->qos.aal == ATM_AAL0 ? 0 : vcc->qos.aal);
|
| 463 |
|
|
if (!test_bit(ATM_VF_HASQOS, &vcc->flags))
|
| 464 |
|
|
return -EBADFD;
|
| 465 |
|
|
if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS ||
|
| 466 |
|
|
vcc->qos.rxtp.traffic_class == ATM_ANYCLASS)
|
| 467 |
|
|
return -EINVAL;
|
| 468 |
|
|
if (itf != ATM_ITF_ANY) {
|
| 469 |
|
|
dev = atm_dev_lookup(itf);
|
| 470 |
|
|
if (!dev)
|
| 471 |
|
|
return -ENODEV;
|
| 472 |
|
|
error = __vcc_connect(vcc, dev, vpi, vci);
|
| 473 |
|
|
if (error) {
|
| 474 |
|
|
atm_dev_put(dev);
|
| 475 |
|
|
return error;
|
| 476 |
|
|
}
|
| 477 |
|
|
} else {
|
| 478 |
|
|
struct list_head *p, *next;
|
| 479 |
|
|
|
| 480 |
|
|
dev = NULL;
|
| 481 |
|
|
spin_lock(&atm_dev_lock);
|
| 482 |
|
|
list_for_each_safe(p, next, &atm_devs) {
|
| 483 |
|
|
dev = list_entry(p, struct atm_dev, dev_list);
|
| 484 |
|
|
atm_dev_hold(dev);
|
| 485 |
|
|
spin_unlock(&atm_dev_lock);
|
| 486 |
|
|
if (!__vcc_connect(vcc, dev, vpi, vci))
|
| 487 |
|
|
break;
|
| 488 |
|
|
atm_dev_put(dev);
|
| 489 |
|
|
dev = NULL;
|
| 490 |
|
|
spin_lock(&atm_dev_lock);
|
| 491 |
|
|
}
|
| 492 |
|
|
spin_unlock(&atm_dev_lock);
|
| 493 |
|
|
if (!dev)
|
| 494 |
|
|
return -ENODEV;
|
| 495 |
|
|
}
|
| 496 |
|
|
if (vpi == ATM_VPI_UNSPEC || vci == ATM_VCI_UNSPEC)
|
| 497 |
|
|
set_bit(ATM_VF_PARTIAL,&vcc->flags);
|
| 498 |
|
|
if (test_bit(ATM_VF_READY,&ATM_SD(sock)->flags))
|
| 499 |
|
|
sock->state = SS_CONNECTED;
|
| 500 |
|
|
return 0;
|
| 501 |
|
|
}
|
| 502 |
|
|
|
| 503 |
|
|
|
| 504 |
|
|
int vcc_recvmsg(struct socket *sock, struct msghdr *msg,
|
| 505 |
|
|
int size, int flags, struct scm_cookie *scm)
|
| 506 |
|
|
{
|
| 507 |
|
|
struct sock *sk = sock->sk;
|
| 508 |
|
|
struct atm_vcc *vcc;
|
| 509 |
|
|
struct sk_buff *skb;
|
| 510 |
|
|
int copied, error = -EINVAL;
|
| 511 |
|
|
|
| 512 |
|
|
if (sock->state != SS_CONNECTED)
|
| 513 |
|
|
return -ENOTCONN;
|
| 514 |
|
|
if (flags & ~MSG_DONTWAIT) /* only handle MSG_DONTWAIT */
|
| 515 |
|
|
return -EOPNOTSUPP;
|
| 516 |
|
|
vcc = ATM_SD(sock);
|
| 517 |
|
|
if (test_bit(ATM_VF_RELEASED,&vcc->flags) ||
|
| 518 |
|
|
test_bit(ATM_VF_CLOSE, &vcc->flags) ||
|
| 519 |
|
|
!test_bit(ATM_VF_READY, &vcc->flags))
|
| 520 |
|
|
return 0;
|
| 521 |
|
|
|
| 522 |
|
|
skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &error);
|
| 523 |
|
|
if (!skb)
|
| 524 |
|
|
return error;
|
| 525 |
|
|
|
| 526 |
|
|
copied = skb->len;
|
| 527 |
|
|
if (copied > size) {
|
| 528 |
|
|
copied = size;
|
| 529 |
|
|
msg->msg_flags |= MSG_TRUNC;
|
| 530 |
|
|
}
|
| 531 |
|
|
|
| 532 |
|
|
error = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
|
| 533 |
|
|
if (error)
|
| 534 |
|
|
return error;
|
| 535 |
|
|
sock_recv_timestamp(msg, sk, skb);
|
| 536 |
|
|
if (vcc->dev->ops->feedback)
|
| 537 |
|
|
vcc->dev->ops->feedback(vcc, skb, (unsigned long) skb->data,
|
| 538 |
|
|
(unsigned long) msg->msg_iov->iov_base, copied);
|
| 539 |
|
|
DPRINTK("RcvM %d -= %d\n", atomic_read(&vcc->sk->rmem_alloc), skb->truesize);
|
| 540 |
|
|
atm_return(vcc, skb->truesize);
|
| 541 |
|
|
skb_free_datagram(sk, skb);
|
| 542 |
|
|
return copied;
|
| 543 |
|
|
}
|
| 544 |
|
|
|
| 545 |
|
|
|
| 546 |
|
|
|
| 547 |
|
|
int vcc_sendmsg(struct socket *sock, struct msghdr *m, int total_len,
|
| 548 |
|
|
struct scm_cookie *scm)
|
| 549 |
|
|
{
|
| 550 |
|
|
struct sock *sk = sock->sk;
|
| 551 |
|
|
DECLARE_WAITQUEUE(wait,current);
|
| 552 |
|
|
struct atm_vcc *vcc;
|
| 553 |
|
|
struct sk_buff *skb;
|
| 554 |
|
|
int eff,error;
|
| 555 |
|
|
const void *buff;
|
| 556 |
|
|
int size;
|
| 557 |
|
|
|
| 558 |
|
|
lock_sock(sk);
|
| 559 |
|
|
if (sock->state != SS_CONNECTED) {
|
| 560 |
|
|
error = -ENOTCONN;
|
| 561 |
|
|
goto out;
|
| 562 |
|
|
}
|
| 563 |
|
|
if (m->msg_name) {
|
| 564 |
|
|
error = -EISCONN;
|
| 565 |
|
|
goto out;
|
| 566 |
|
|
}
|
| 567 |
|
|
if (m->msg_iovlen != 1) {
|
| 568 |
|
|
error = -ENOSYS; /* fix this later @@@ */
|
| 569 |
|
|
goto out;
|
| 570 |
|
|
}
|
| 571 |
|
|
buff = m->msg_iov->iov_base;
|
| 572 |
|
|
size = m->msg_iov->iov_len;
|
| 573 |
|
|
vcc = ATM_SD(sock);
|
| 574 |
|
|
if (test_bit(ATM_VF_RELEASED, &vcc->flags) ||
|
| 575 |
|
|
test_bit(ATM_VF_CLOSE, &vcc->flags) ||
|
| 576 |
|
|
!test_bit(ATM_VF_READY, &vcc->flags)) {
|
| 577 |
|
|
error = -EPIPE;
|
| 578 |
|
|
send_sig(SIGPIPE, current, 0);
|
| 579 |
|
|
goto out;
|
| 580 |
|
|
}
|
| 581 |
|
|
if (!size) {
|
| 582 |
|
|
error = 0;
|
| 583 |
|
|
goto out;
|
| 584 |
|
|
}
|
| 585 |
|
|
if (size < 0 || size > vcc->qos.txtp.max_sdu) {
|
| 586 |
|
|
error = -EMSGSIZE;
|
| 587 |
|
|
goto out;
|
| 588 |
|
|
}
|
| 589 |
|
|
/* verify_area is done by net/socket.c */
|
| 590 |
|
|
eff = (size+3) & ~3; /* align to word boundary */
|
| 591 |
|
|
add_wait_queue(&vcc->sleep,&wait);
|
| 592 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 593 |
|
|
error = 0;
|
| 594 |
|
|
while (!(skb = alloc_tx(vcc,eff))) {
|
| 595 |
|
|
if (m->msg_flags & MSG_DONTWAIT) {
|
| 596 |
|
|
error = -EAGAIN;
|
| 597 |
|
|
break;
|
| 598 |
|
|
}
|
| 599 |
|
|
schedule();
|
| 600 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 601 |
|
|
if (signal_pending(current)) {
|
| 602 |
|
|
error = -ERESTARTSYS;
|
| 603 |
|
|
break;
|
| 604 |
|
|
}
|
| 605 |
|
|
if (test_bit(ATM_VF_RELEASED,&vcc->flags) ||
|
| 606 |
|
|
test_bit(ATM_VF_CLOSE, &vcc->flags) ||
|
| 607 |
|
|
!test_bit(ATM_VF_READY, &vcc->flags)) {
|
| 608 |
|
|
error = -EPIPE;
|
| 609 |
|
|
send_sig(SIGPIPE, current, 0);
|
| 610 |
|
|
break;
|
| 611 |
|
|
}
|
| 612 |
|
|
}
|
| 613 |
|
|
set_current_state(TASK_RUNNING);
|
| 614 |
|
|
remove_wait_queue(&vcc->sleep,&wait);
|
| 615 |
|
|
if (error)
|
| 616 |
|
|
goto out;
|
| 617 |
|
|
skb->dev = NULL; /* for paths shared with net_device interfaces */
|
| 618 |
|
|
ATM_SKB(skb)->atm_options = vcc->atm_options;
|
| 619 |
|
|
if (copy_from_user(skb_put(skb,size),buff,size)) {
|
| 620 |
|
|
kfree_skb(skb);
|
| 621 |
|
|
error = -EFAULT;
|
| 622 |
|
|
goto out;
|
| 623 |
|
|
}
|
| 624 |
|
|
if (eff != size) memset(skb->data+size,0,eff-size);
|
| 625 |
|
|
error = vcc->dev->ops->send(vcc,skb);
|
| 626 |
|
|
error = error ? error : size;
|
| 627 |
|
|
out:
|
| 628 |
|
|
release_sock(sk);
|
| 629 |
|
|
return error;
|
| 630 |
|
|
}
|
| 631 |
|
|
|
| 632 |
|
|
|
| 633 |
|
|
unsigned int atm_poll(struct file *file,struct socket *sock,poll_table *wait)
|
| 634 |
|
|
{
|
| 635 |
|
|
struct atm_vcc *vcc;
|
| 636 |
|
|
unsigned int mask;
|
| 637 |
|
|
|
| 638 |
|
|
vcc = ATM_SD(sock);
|
| 639 |
|
|
poll_wait(file,&vcc->sleep,wait);
|
| 640 |
|
|
mask = 0;
|
| 641 |
|
|
if (skb_peek(&vcc->sk->receive_queue))
|
| 642 |
|
|
mask |= POLLIN | POLLRDNORM;
|
| 643 |
|
|
if (test_bit(ATM_VF_RELEASED,&vcc->flags) ||
|
| 644 |
|
|
test_bit(ATM_VF_CLOSE,&vcc->flags))
|
| 645 |
|
|
mask |= POLLHUP;
|
| 646 |
|
|
if (sock->state != SS_CONNECTING) {
|
| 647 |
|
|
if (vcc->qos.txtp.traffic_class != ATM_NONE &&
|
| 648 |
|
|
vcc->qos.txtp.max_sdu+atomic_read(&vcc->sk->wmem_alloc) <= vcc->sk->sndbuf)
|
| 649 |
|
|
mask |= POLLOUT | POLLWRNORM;
|
| 650 |
|
|
}
|
| 651 |
|
|
else if (vcc->reply != WAITING) {
|
| 652 |
|
|
mask |= POLLOUT | POLLWRNORM;
|
| 653 |
|
|
if (vcc->reply) mask |= POLLERR;
|
| 654 |
|
|
}
|
| 655 |
|
|
return mask;
|
| 656 |
|
|
}
|
| 657 |
|
|
|
| 658 |
|
|
|
| 659 |
|
|
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
| 660 |
|
|
{
|
| 661 |
|
|
struct atm_vcc *vcc;
|
| 662 |
|
|
int error;
|
| 663 |
|
|
|
| 664 |
|
|
vcc = ATM_SD(sock);
|
| 665 |
|
|
switch (cmd) {
|
| 666 |
|
|
case SIOCOUTQ:
|
| 667 |
|
|
if (sock->state != SS_CONNECTED ||
|
| 668 |
|
|
!test_bit(ATM_VF_READY, &vcc->flags)) {
|
| 669 |
|
|
error = -EINVAL;
|
| 670 |
|
|
goto done;
|
| 671 |
|
|
}
|
| 672 |
|
|
error = put_user(vcc->sk->sndbuf-
|
| 673 |
|
|
atomic_read(&vcc->sk->wmem_alloc),
|
| 674 |
|
|
(int *) arg) ? -EFAULT : 0;
|
| 675 |
|
|
goto done;
|
| 676 |
|
|
case SIOCINQ:
|
| 677 |
|
|
{
|
| 678 |
|
|
struct sk_buff *skb;
|
| 679 |
|
|
|
| 680 |
|
|
if (sock->state != SS_CONNECTED) {
|
| 681 |
|
|
error = -EINVAL;
|
| 682 |
|
|
goto done;
|
| 683 |
|
|
}
|
| 684 |
|
|
skb = skb_peek(&vcc->sk->receive_queue);
|
| 685 |
|
|
error = put_user(skb ? skb->len : 0,
|
| 686 |
|
|
(int *) arg) ? -EFAULT : 0;
|
| 687 |
|
|
goto done;
|
| 688 |
|
|
}
|
| 689 |
|
|
case SIOCGSTAMP: /* borrowed from IP */
|
| 690 |
|
|
if (!vcc->sk->stamp.tv_sec) {
|
| 691 |
|
|
error = -ENOENT;
|
| 692 |
|
|
goto done;
|
| 693 |
|
|
}
|
| 694 |
|
|
error = copy_to_user((void *) arg, &vcc->sk->stamp,
|
| 695 |
|
|
sizeof(struct timeval)) ? -EFAULT : 0;
|
| 696 |
|
|
goto done;
|
| 697 |
|
|
case ATM_SETSC:
|
| 698 |
|
|
printk(KERN_WARNING "ATM_SETSC is obsolete\n");
|
| 699 |
|
|
error = 0;
|
| 700 |
|
|
goto done;
|
| 701 |
|
|
case ATMSIGD_CTRL:
|
| 702 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 703 |
|
|
error = -EPERM;
|
| 704 |
|
|
goto done;
|
| 705 |
|
|
}
|
| 706 |
|
|
/*
|
| 707 |
|
|
* The user/kernel protocol for exchanging signalling
|
| 708 |
|
|
* info uses kernel pointers as opaque references,
|
| 709 |
|
|
* so the holder of the file descriptor can scribble
|
| 710 |
|
|
* on the kernel... so we should make sure that we
|
| 711 |
|
|
* have the same privledges that /proc/kcore needs
|
| 712 |
|
|
*/
|
| 713 |
|
|
if (!capable(CAP_SYS_RAWIO)) {
|
| 714 |
|
|
error = -EPERM;
|
| 715 |
|
|
goto done;
|
| 716 |
|
|
}
|
| 717 |
|
|
error = sigd_attach(vcc);
|
| 718 |
|
|
if (!error)
|
| 719 |
|
|
sock->state = SS_CONNECTED;
|
| 720 |
|
|
goto done;
|
| 721 |
|
|
#if defined(CONFIG_ATM_CLIP) || defined(CONFIG_ATM_CLIP_MODULE)
|
| 722 |
|
|
case SIOCMKCLIP:
|
| 723 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 724 |
|
|
error = -EPERM;
|
| 725 |
|
|
goto done;
|
| 726 |
|
|
}
|
| 727 |
|
|
if (try_atm_clip_ops()) {
|
| 728 |
|
|
error = atm_clip_ops->clip_create(arg);
|
| 729 |
|
|
if (atm_clip_ops->owner)
|
| 730 |
|
|
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
|
| 731 |
|
|
} else
|
| 732 |
|
|
error = -ENOSYS;
|
| 733 |
|
|
goto done;
|
| 734 |
|
|
case ATMARPD_CTRL:
|
| 735 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 736 |
|
|
error = -EPERM;
|
| 737 |
|
|
goto done;
|
| 738 |
|
|
}
|
| 739 |
|
|
#if defined(CONFIG_ATM_CLIP_MODULE)
|
| 740 |
|
|
if (!atm_clip_ops)
|
| 741 |
|
|
request_module("clip");
|
| 742 |
|
|
#endif
|
| 743 |
|
|
if (try_atm_clip_ops()) {
|
| 744 |
|
|
error = atm_clip_ops->atm_init_atmarp(vcc);
|
| 745 |
|
|
if (atm_clip_ops->owner)
|
| 746 |
|
|
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
|
| 747 |
|
|
if (!error)
|
| 748 |
|
|
sock->state = SS_CONNECTED;
|
| 749 |
|
|
} else
|
| 750 |
|
|
error = -ENOSYS;
|
| 751 |
|
|
goto done;
|
| 752 |
|
|
case ATMARP_MKIP:
|
| 753 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 754 |
|
|
error = -EPERM;
|
| 755 |
|
|
goto done;
|
| 756 |
|
|
}
|
| 757 |
|
|
if (try_atm_clip_ops()) {
|
| 758 |
|
|
error = atm_clip_ops->clip_mkip(vcc, arg);
|
| 759 |
|
|
if (atm_clip_ops->owner)
|
| 760 |
|
|
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
|
| 761 |
|
|
} else
|
| 762 |
|
|
error = -ENOSYS;
|
| 763 |
|
|
goto done;
|
| 764 |
|
|
case ATMARP_SETENTRY:
|
| 765 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 766 |
|
|
error = -EPERM;
|
| 767 |
|
|
goto done;
|
| 768 |
|
|
}
|
| 769 |
|
|
if (try_atm_clip_ops()) {
|
| 770 |
|
|
error = atm_clip_ops->clip_setentry(vcc, arg);
|
| 771 |
|
|
if (atm_clip_ops->owner)
|
| 772 |
|
|
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
|
| 773 |
|
|
} else
|
| 774 |
|
|
error = -ENOSYS;
|
| 775 |
|
|
goto done;
|
| 776 |
|
|
case ATMARP_ENCAP:
|
| 777 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 778 |
|
|
error = -EPERM;
|
| 779 |
|
|
goto done;
|
| 780 |
|
|
}
|
| 781 |
|
|
if (try_atm_clip_ops()) {
|
| 782 |
|
|
error = atm_clip_ops->clip_encap(vcc, arg);
|
| 783 |
|
|
if (atm_clip_ops->owner)
|
| 784 |
|
|
__MOD_DEC_USE_COUNT(atm_clip_ops->owner);
|
| 785 |
|
|
} else
|
| 786 |
|
|
error = -ENOSYS;
|
| 787 |
|
|
goto done;
|
| 788 |
|
|
#endif
|
| 789 |
|
|
#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
|
| 790 |
|
|
case ATMLEC_CTRL:
|
| 791 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 792 |
|
|
error = -EPERM;
|
| 793 |
|
|
goto done;
|
| 794 |
|
|
}
|
| 795 |
|
|
#if defined(CONFIG_ATM_LANE_MODULE)
|
| 796 |
|
|
if (!atm_lane_ops)
|
| 797 |
|
|
request_module("lec");
|
| 798 |
|
|
#endif
|
| 799 |
|
|
if (try_atm_lane_ops()) {
|
| 800 |
|
|
error = atm_lane_ops->lecd_attach(vcc, (int) arg);
|
| 801 |
|
|
if (atm_lane_ops->owner)
|
| 802 |
|
|
__MOD_DEC_USE_COUNT(atm_lane_ops->owner);
|
| 803 |
|
|
if (error >= 0)
|
| 804 |
|
|
sock->state = SS_CONNECTED;
|
| 805 |
|
|
} else
|
| 806 |
|
|
error = -ENOSYS;
|
| 807 |
|
|
goto done;
|
| 808 |
|
|
case ATMLEC_MCAST:
|
| 809 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 810 |
|
|
error = -EPERM;
|
| 811 |
|
|
goto done;
|
| 812 |
|
|
}
|
| 813 |
|
|
if (try_atm_lane_ops()) {
|
| 814 |
|
|
error = atm_lane_ops->mcast_attach(vcc, (int) arg);
|
| 815 |
|
|
if (atm_lane_ops->owner)
|
| 816 |
|
|
__MOD_DEC_USE_COUNT(atm_lane_ops->owner);
|
| 817 |
|
|
} else
|
| 818 |
|
|
error = -ENOSYS;
|
| 819 |
|
|
goto done;
|
| 820 |
|
|
case ATMLEC_DATA:
|
| 821 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 822 |
|
|
error = -EPERM;
|
| 823 |
|
|
goto done;
|
| 824 |
|
|
}
|
| 825 |
|
|
if (try_atm_lane_ops()) {
|
| 826 |
|
|
error = atm_lane_ops->vcc_attach(vcc, (void *) arg);
|
| 827 |
|
|
if (atm_lane_ops->owner)
|
| 828 |
|
|
__MOD_DEC_USE_COUNT(atm_lane_ops->owner);
|
| 829 |
|
|
} else
|
| 830 |
|
|
error = -ENOSYS;
|
| 831 |
|
|
goto done;
|
| 832 |
|
|
#endif
|
| 833 |
|
|
#if defined(CONFIG_ATM_MPOA) || defined(CONFIG_ATM_MPOA_MODULE)
|
| 834 |
|
|
case ATMMPC_CTRL:
|
| 835 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 836 |
|
|
error = -EPERM;
|
| 837 |
|
|
goto done;
|
| 838 |
|
|
}
|
| 839 |
|
|
#if defined(CONFIG_ATM_MPOA_MODULE)
|
| 840 |
|
|
if (!atm_mpoa_ops)
|
| 841 |
|
|
request_module("mpoa");
|
| 842 |
|
|
#endif
|
| 843 |
|
|
if (try_atm_mpoa_ops()) {
|
| 844 |
|
|
error = atm_mpoa_ops->mpoad_attach(vcc, (int) arg);
|
| 845 |
|
|
if (atm_mpoa_ops->owner)
|
| 846 |
|
|
__MOD_DEC_USE_COUNT(atm_mpoa_ops->owner);
|
| 847 |
|
|
if (error >= 0)
|
| 848 |
|
|
sock->state = SS_CONNECTED;
|
| 849 |
|
|
} else
|
| 850 |
|
|
error = -ENOSYS;
|
| 851 |
|
|
goto done;
|
| 852 |
|
|
case ATMMPC_DATA:
|
| 853 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 854 |
|
|
error = -EPERM;
|
| 855 |
|
|
goto done;
|
| 856 |
|
|
}
|
| 857 |
|
|
if (try_atm_mpoa_ops()) {
|
| 858 |
|
|
error = atm_mpoa_ops->vcc_attach(vcc, arg);
|
| 859 |
|
|
if (atm_mpoa_ops->owner)
|
| 860 |
|
|
__MOD_DEC_USE_COUNT(atm_mpoa_ops->owner);
|
| 861 |
|
|
} else
|
| 862 |
|
|
error = -ENOSYS;
|
| 863 |
|
|
goto done;
|
| 864 |
|
|
#endif
|
| 865 |
|
|
#if defined(CONFIG_ATM_TCP) || defined(CONFIG_ATM_TCP_MODULE)
|
| 866 |
|
|
case SIOCSIFATMTCP:
|
| 867 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 868 |
|
|
error = -EPERM;
|
| 869 |
|
|
goto done;
|
| 870 |
|
|
}
|
| 871 |
|
|
if (!atm_tcp_ops.attach) {
|
| 872 |
|
|
error = -ENOPKG;
|
| 873 |
|
|
goto done;
|
| 874 |
|
|
}
|
| 875 |
|
|
fops_get(&atm_tcp_ops);
|
| 876 |
|
|
error = atm_tcp_ops.attach(vcc, (int) arg);
|
| 877 |
|
|
if (error >= 0)
|
| 878 |
|
|
sock->state = SS_CONNECTED;
|
| 879 |
|
|
else
|
| 880 |
|
|
fops_put(&atm_tcp_ops);
|
| 881 |
|
|
goto done;
|
| 882 |
|
|
case ATMTCP_CREATE:
|
| 883 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 884 |
|
|
error = -EPERM;
|
| 885 |
|
|
goto done;
|
| 886 |
|
|
}
|
| 887 |
|
|
if (!atm_tcp_ops.create_persistent) {
|
| 888 |
|
|
error = -ENOPKG;
|
| 889 |
|
|
goto done;
|
| 890 |
|
|
}
|
| 891 |
|
|
error = atm_tcp_ops.create_persistent((int) arg);
|
| 892 |
|
|
if (error < 0)
|
| 893 |
|
|
fops_put(&atm_tcp_ops);
|
| 894 |
|
|
goto done;
|
| 895 |
|
|
case ATMTCP_REMOVE:
|
| 896 |
|
|
if (!capable(CAP_NET_ADMIN)) {
|
| 897 |
|
|
error = -EPERM;
|
| 898 |
|
|
goto done;
|
| 899 |
|
|
}
|
| 900 |
|
|
if (!atm_tcp_ops.remove_persistent) {
|
| 901 |
|
|
error = -ENOPKG;
|
| 902 |
|
|
goto done;
|
| 903 |
|
|
}
|
| 904 |
|
|
error = atm_tcp_ops.remove_persistent((int) arg);
|
| 905 |
|
|
fops_put(&atm_tcp_ops);
|
| 906 |
|
|
goto done;
|
| 907 |
|
|
#endif
|
| 908 |
|
|
default:
|
| 909 |
|
|
break;
|
| 910 |
|
|
}
|
| 911 |
|
|
error = -ENOIOCTLCMD;
|
| 912 |
|
|
#if defined(CONFIG_PPPOATM) || defined(CONFIG_PPPOATM_MODULE)
|
| 913 |
|
|
down(&pppoatm_ioctl_mutex);
|
| 914 |
|
|
if (pppoatm_ioctl_hook)
|
| 915 |
|
|
error = pppoatm_ioctl_hook(vcc, cmd, arg);
|
| 916 |
|
|
up(&pppoatm_ioctl_mutex);
|
| 917 |
|
|
if (error != -ENOIOCTLCMD)
|
| 918 |
|
|
goto done;
|
| 919 |
|
|
#endif
|
| 920 |
|
|
#if defined(CONFIG_ATM_BR2684) || defined(CONFIG_ATM_BR2684_MODULE)
|
| 921 |
|
|
down(&br2684_ioctl_mutex);
|
| 922 |
|
|
if (br2684_ioctl_hook)
|
| 923 |
|
|
error = br2684_ioctl_hook(vcc, cmd, arg);
|
| 924 |
|
|
up(&br2684_ioctl_mutex);
|
| 925 |
|
|
if (error != -ENOIOCTLCMD)
|
| 926 |
|
|
goto done;
|
| 927 |
|
|
#endif
|
| 928 |
|
|
|
| 929 |
|
|
error = atm_dev_ioctl(cmd, arg);
|
| 930 |
|
|
|
| 931 |
|
|
done:
|
| 932 |
|
|
return error;
|
| 933 |
|
|
}
|
| 934 |
|
|
|
| 935 |
|
|
|
| 936 |
|
|
static int atm_change_qos(struct atm_vcc *vcc,struct atm_qos *qos)
|
| 937 |
|
|
{
|
| 938 |
|
|
int error;
|
| 939 |
|
|
|
| 940 |
|
|
/*
|
| 941 |
|
|
* Don't let the QoS change the already connected AAL type nor the
|
| 942 |
|
|
* traffic class.
|
| 943 |
|
|
*/
|
| 944 |
|
|
if (qos->aal != vcc->qos.aal ||
|
| 945 |
|
|
qos->rxtp.traffic_class != vcc->qos.rxtp.traffic_class ||
|
| 946 |
|
|
qos->txtp.traffic_class != vcc->qos.txtp.traffic_class)
|
| 947 |
|
|
return -EINVAL;
|
| 948 |
|
|
error = adjust_tp(&qos->txtp,qos->aal);
|
| 949 |
|
|
if (!error) error = adjust_tp(&qos->rxtp,qos->aal);
|
| 950 |
|
|
if (error) return error;
|
| 951 |
|
|
if (!vcc->dev->ops->change_qos) return -EOPNOTSUPP;
|
| 952 |
|
|
if (vcc->sk->family == AF_ATMPVC)
|
| 953 |
|
|
return vcc->dev->ops->change_qos(vcc,qos,ATM_MF_SET);
|
| 954 |
|
|
return svc_change_qos(vcc,qos);
|
| 955 |
|
|
}
|
| 956 |
|
|
|
| 957 |
|
|
|
| 958 |
|
|
static int check_tp(struct atm_trafprm *tp)
|
| 959 |
|
|
{
|
| 960 |
|
|
/* @@@ Should be merged with adjust_tp */
|
| 961 |
|
|
if (!tp->traffic_class || tp->traffic_class == ATM_ANYCLASS) return 0;
|
| 962 |
|
|
if (tp->traffic_class != ATM_UBR && !tp->min_pcr && !tp->pcr &&
|
| 963 |
|
|
!tp->max_pcr) return -EINVAL;
|
| 964 |
|
|
if (tp->min_pcr == ATM_MAX_PCR) return -EINVAL;
|
| 965 |
|
|
if (tp->min_pcr && tp->max_pcr && tp->max_pcr != ATM_MAX_PCR &&
|
| 966 |
|
|
tp->min_pcr > tp->max_pcr) return -EINVAL;
|
| 967 |
|
|
/*
|
| 968 |
|
|
* We allow pcr to be outside [min_pcr,max_pcr], because later
|
| 969 |
|
|
* adjustment may still push it in the valid range.
|
| 970 |
|
|
*/
|
| 971 |
|
|
return 0;
|
| 972 |
|
|
}
|
| 973 |
|
|
|
| 974 |
|
|
|
| 975 |
|
|
static int check_qos(struct atm_qos *qos)
|
| 976 |
|
|
{
|
| 977 |
|
|
int error;
|
| 978 |
|
|
|
| 979 |
|
|
if (!qos->txtp.traffic_class && !qos->rxtp.traffic_class)
|
| 980 |
|
|
return -EINVAL;
|
| 981 |
|
|
if (qos->txtp.traffic_class != qos->rxtp.traffic_class &&
|
| 982 |
|
|
qos->txtp.traffic_class && qos->rxtp.traffic_class &&
|
| 983 |
|
|
qos->txtp.traffic_class != ATM_ANYCLASS &&
|
| 984 |
|
|
qos->rxtp.traffic_class != ATM_ANYCLASS) return -EINVAL;
|
| 985 |
|
|
error = check_tp(&qos->txtp);
|
| 986 |
|
|
if (error) return error;
|
| 987 |
|
|
return check_tp(&qos->rxtp);
|
| 988 |
|
|
}
|
| 989 |
|
|
|
| 990 |
|
|
int vcc_setsockopt(struct socket *sock, int level, int optname,
|
| 991 |
|
|
char *optval, int optlen)
|
| 992 |
|
|
{
|
| 993 |
|
|
struct atm_vcc *vcc;
|
| 994 |
|
|
unsigned long value;
|
| 995 |
|
|
int error;
|
| 996 |
|
|
|
| 997 |
|
|
if (__SO_LEVEL_MATCH(optname, level) && optlen != __SO_SIZE(optname))
|
| 998 |
|
|
return -EINVAL;
|
| 999 |
|
|
|
| 1000 |
|
|
vcc = ATM_SD(sock);
|
| 1001 |
|
|
switch (optname) {
|
| 1002 |
|
|
case SO_ATMQOS:
|
| 1003 |
|
|
{
|
| 1004 |
|
|
struct atm_qos qos;
|
| 1005 |
|
|
|
| 1006 |
|
|
if (copy_from_user(&qos,optval,sizeof(qos)))
|
| 1007 |
|
|
return -EFAULT;
|
| 1008 |
|
|
error = check_qos(&qos);
|
| 1009 |
|
|
if (error) return error;
|
| 1010 |
|
|
if (sock->state == SS_CONNECTED)
|
| 1011 |
|
|
return atm_change_qos(vcc,&qos);
|
| 1012 |
|
|
if (sock->state != SS_UNCONNECTED)
|
| 1013 |
|
|
return -EBADFD;
|
| 1014 |
|
|
vcc->qos = qos;
|
| 1015 |
|
|
set_bit(ATM_VF_HASQOS,&vcc->flags);
|
| 1016 |
|
|
return 0;
|
| 1017 |
|
|
}
|
| 1018 |
|
|
case SO_SETCLP:
|
| 1019 |
|
|
if (get_user(value,(unsigned long *) optval))
|
| 1020 |
|
|
return -EFAULT;
|
| 1021 |
|
|
if (value) vcc->atm_options |= ATM_ATMOPT_CLP;
|
| 1022 |
|
|
else vcc->atm_options &= ~ATM_ATMOPT_CLP;
|
| 1023 |
|
|
return 0;
|
| 1024 |
|
|
default:
|
| 1025 |
|
|
if (level == SOL_SOCKET) return -EINVAL;
|
| 1026 |
|
|
break;
|
| 1027 |
|
|
}
|
| 1028 |
|
|
if (!vcc->dev || !vcc->dev->ops->setsockopt) return -EINVAL;
|
| 1029 |
|
|
return vcc->dev->ops->setsockopt(vcc,level,optname,optval,optlen);
|
| 1030 |
|
|
}
|
| 1031 |
|
|
|
| 1032 |
|
|
|
| 1033 |
|
|
int vcc_getsockopt(struct socket *sock, int level, int optname,
|
| 1034 |
|
|
char *optval, int *optlen)
|
| 1035 |
|
|
{
|
| 1036 |
|
|
struct atm_vcc *vcc;
|
| 1037 |
|
|
int len;
|
| 1038 |
|
|
|
| 1039 |
|
|
if (get_user(len, optlen))
|
| 1040 |
|
|
return -EFAULT;
|
| 1041 |
|
|
if (__SO_LEVEL_MATCH(optname, level) && len != __SO_SIZE(optname))
|
| 1042 |
|
|
return -EINVAL;
|
| 1043 |
|
|
|
| 1044 |
|
|
vcc = ATM_SD(sock);
|
| 1045 |
|
|
switch (optname) {
|
| 1046 |
|
|
case SO_ATMQOS:
|
| 1047 |
|
|
if (!test_bit(ATM_VF_HASQOS,&vcc->flags))
|
| 1048 |
|
|
return -EINVAL;
|
| 1049 |
|
|
return copy_to_user(optval,&vcc->qos,sizeof(vcc->qos)) ?
|
| 1050 |
|
|
-EFAULT : 0;
|
| 1051 |
|
|
case SO_SETCLP:
|
| 1052 |
|
|
return put_user(vcc->atm_options & ATM_ATMOPT_CLP ? 1 :
|
| 1053 |
|
|
0,(unsigned long *) optval) ? -EFAULT : 0;
|
| 1054 |
|
|
case SO_ATMPVC:
|
| 1055 |
|
|
{
|
| 1056 |
|
|
struct sockaddr_atmpvc pvc;
|
| 1057 |
|
|
|
| 1058 |
|
|
if (!vcc->dev ||
|
| 1059 |
|
|
!test_bit(ATM_VF_ADDR,&vcc->flags))
|
| 1060 |
|
|
return -ENOTCONN;
|
| 1061 |
|
|
pvc.sap_family = AF_ATMPVC;
|
| 1062 |
|
|
pvc.sap_addr.itf = vcc->dev->number;
|
| 1063 |
|
|
pvc.sap_addr.vpi = vcc->vpi;
|
| 1064 |
|
|
pvc.sap_addr.vci = vcc->vci;
|
| 1065 |
|
|
return copy_to_user(optval,&pvc,sizeof(pvc)) ?
|
| 1066 |
|
|
-EFAULT : 0;
|
| 1067 |
|
|
}
|
| 1068 |
|
|
default:
|
| 1069 |
|
|
if (level == SOL_SOCKET) return -EINVAL;
|
| 1070 |
|
|
break;
|
| 1071 |
|
|
}
|
| 1072 |
|
|
if (!vcc->dev || !vcc->dev->ops->getsockopt) return -EINVAL;
|
| 1073 |
|
|
return vcc->dev->ops->getsockopt(vcc, level, optname, optval, len);
|
| 1074 |
|
|
}
|
| 1075 |
|
|
|
| 1076 |
|
|
|
| 1077 |
|
|
#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
|
| 1078 |
|
|
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
|
| 1079 |
|
|
struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
|
| 1080 |
|
|
unsigned char *addr) = NULL;
|
| 1081 |
|
|
void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) = NULL;
|
| 1082 |
|
|
#if defined(CONFIG_ATM_LANE_MODULE) || defined(CONFIG_BRIDGE_MODULE)
|
| 1083 |
|
|
EXPORT_SYMBOL(br_fdb_get_hook);
|
| 1084 |
|
|
EXPORT_SYMBOL(br_fdb_put_hook);
|
| 1085 |
|
|
#endif /* defined(CONFIG_ATM_LANE_MODULE) || defined(CONFIG_BRIDGE_MODULE) */
|
| 1086 |
|
|
#endif /* defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE) */
|
| 1087 |
|
|
#endif /* defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE) */
|
| 1088 |
|
|
|
| 1089 |
|
|
|
| 1090 |
|
|
static int __init atm_init(void)
|
| 1091 |
|
|
{
|
| 1092 |
|
|
int error;
|
| 1093 |
|
|
|
| 1094 |
|
|
if ((error = atmpvc_init()) < 0) {
|
| 1095 |
|
|
printk(KERN_ERR "atmpvc_init() failed with %d\n", error);
|
| 1096 |
|
|
goto failure;
|
| 1097 |
|
|
}
|
| 1098 |
|
|
if ((error = atmsvc_init()) < 0) {
|
| 1099 |
|
|
printk(KERN_ERR "atmsvc_init() failed with %d\n", error);
|
| 1100 |
|
|
goto failure;
|
| 1101 |
|
|
}
|
| 1102 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1103 |
|
|
if ((error = atm_proc_init()) < 0) {
|
| 1104 |
|
|
printk(KERN_ERR "atm_proc_init() failed with %d\n",error);
|
| 1105 |
|
|
goto failure;
|
| 1106 |
|
|
}
|
| 1107 |
|
|
#endif
|
| 1108 |
|
|
return 0;
|
| 1109 |
|
|
|
| 1110 |
|
|
failure:
|
| 1111 |
|
|
atmsvc_exit();
|
| 1112 |
|
|
atmpvc_exit();
|
| 1113 |
|
|
return error;
|
| 1114 |
|
|
}
|
| 1115 |
|
|
|
| 1116 |
|
|
static void __exit atm_exit(void)
|
| 1117 |
|
|
{
|
| 1118 |
|
|
#ifdef CONFIG_PROC_FS
|
| 1119 |
|
|
atm_proc_exit();
|
| 1120 |
|
|
#endif
|
| 1121 |
|
|
atmsvc_exit();
|
| 1122 |
|
|
atmpvc_exit();
|
| 1123 |
|
|
}
|
| 1124 |
|
|
|
| 1125 |
|
|
module_init(atm_init);
|
| 1126 |
|
|
module_exit(atm_exit);
|
| 1127 |
|
|
|
| 1128 |
|
|
MODULE_LICENSE("GPL");
|
