/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/net.h> /* struct socket, struct proto_ops */
#include <linux/socket.h> /* SOL_SOCKET */
#include <linux/errno.h> /* error codes */
#include <linux/capability.h>
-#include <linux/mm.h> /* verify_area */
+#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/time.h> /* struct timeval */
#include <linux/skbuff.h>
#include "addr.h" /* address registry */
#include "signaling.h" /* for WAITING and sigd_attach */
-
-#if 0
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
struct hlist_head vcc_hash[VCC_HTABLE_SIZE];
DEFINE_RWLOCK(vcc_sklist_lock);
struct atm_vcc *vcc = atm_sk(sk);
struct hlist_head *head = &vcc_hash[vcc->vci &
(VCC_HTABLE_SIZE - 1)];
- sk->sk_hashent = vcc->vci & (VCC_HTABLE_SIZE - 1);
+ sk->sk_hash = vcc->vci & (VCC_HTABLE_SIZE - 1);
sk_add_node(sk, head);
}
struct sock *sk = sk_atm(vcc);
if (atomic_read(&sk->sk_wmem_alloc) && !atm_may_send(vcc, size)) {
- DPRINTK("Sorry: wmem_alloc = %d, size = %d, sndbuf = %d\n",
+ pr_debug("Sorry: wmem_alloc = %d, size = %d, sndbuf = %d\n",
atomic_read(&sk->sk_wmem_alloc), size,
sk->sk_sndbuf);
return NULL;
}
while (!(skb = alloc_skb(size,GFP_KERNEL))) schedule();
- DPRINTK("AlTx %d += %d\n", atomic_read(&sk->sk_wmem_alloc),
+ pr_debug("AlTx %d += %d\n", atomic_read(&sk->sk_wmem_alloc),
skb->truesize);
atomic_add(skb->truesize, &sk->sk_wmem_alloc);
return skb;
struct atm_vcc *vcc = atm_sk(sk);
return (vcc->qos.txtp.max_sdu +
- atomic_read(&sk->sk_wmem_alloc)) <= sk->sk_sndbuf;
+ atomic_read(&sk->sk_wmem_alloc)) <= sk->sk_sndbuf;
}
static void vcc_write_space(struct sock *sk)
-{
+{
read_lock(&sk->sk_callback_lock);
if (vcc_writable(sk)) {
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible(sk->sk_sleep);
- sk_wake_async(sk, 2, POLL_OUT);
+ sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
}
read_unlock(&sk->sk_callback_lock);
.owner = THIS_MODULE,
.obj_size = sizeof(struct atm_vcc),
};
-
-int vcc_create(struct socket *sock, int protocol, int family)
+
+int vcc_create(struct net *net, struct socket *sock, int protocol, int family)
{
struct sock *sk;
struct atm_vcc *vcc;
sock->sk = NULL;
if (sock->type == SOCK_STREAM)
return -EINVAL;
- sk = sk_alloc(family, GFP_KERNEL, &vcc_proto, 1);
+ sk = sk_alloc(net, family, GFP_KERNEL, &vcc_proto);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
if (vcc->push)
vcc->push(vcc, NULL); /* atmarpd has no push */
- vcc_remove_socket(sk); /* no more receive */
-
while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
atm_return(vcc,skb->truesize);
kfree_skb(skb);
module_put(vcc->dev->ops->owner);
atm_dev_put(vcc->dev);
}
+
+ vcc_remove_socket(sk);
}
EXPORT_SYMBOL(vcc_release_async);
+void atm_dev_release_vccs(struct atm_dev *dev)
+{
+ int i;
+
+ write_lock_irq(&vcc_sklist_lock);
+ for (i = 0; i < VCC_HTABLE_SIZE; i++) {
+ struct hlist_head *head = &vcc_hash[i];
+ struct hlist_node *node, *tmp;
+ struct sock *s;
+ struct atm_vcc *vcc;
+
+ sk_for_each_safe(s, node, tmp, head) {
+ vcc = atm_sk(s);
+ if (vcc->dev == dev) {
+ vcc_release_async(vcc, -EPIPE);
+ sk_del_node_init(s);
+ }
+ }
+ }
+ write_unlock_irq(&vcc_sklist_lock);
+}
+
+
static int adjust_tp(struct atm_trafprm *tp,unsigned char aal)
{
int max_sdu;
}
-static int check_ci(struct atm_vcc *vcc, short vpi, int vci)
+static int check_ci(const struct atm_vcc *vcc, short vpi, int vci)
{
struct hlist_head *head = &vcc_hash[vci &
(VCC_HTABLE_SIZE - 1)];
}
-static int find_ci(struct atm_vcc *vcc, short *vpi, int *vci)
+static int find_ci(const struct atm_vcc *vcc, short *vpi, int *vci)
{
static short p; /* poor man's per-device cache */
static int c;
return -EINVAL;
if (vci > 0 && vci < ATM_NOT_RSV_VCI && !capable(CAP_NET_BIND_SERVICE))
return -EPERM;
- error = 0;
+ error = -ENODEV;
if (!try_module_get(dev->ops->owner))
- return -ENODEV;
+ return error;
vcc->dev = dev;
write_lock_irq(&vcc_sklist_lock);
- if ((error = find_ci(vcc, &vpi, &vci))) {
+ if (test_bit(ATM_DF_REMOVED, &dev->flags) ||
+ (error = find_ci(vcc, &vpi, &vci))) {
write_unlock_irq(&vcc_sklist_lock);
goto fail_module_put;
}
if (!error) error = adjust_tp(&vcc->qos.rxtp,vcc->qos.aal);
if (error)
goto fail;
- DPRINTK("VCC %d.%d, AAL %d\n",vpi,vci,vcc->qos.aal);
- DPRINTK(" TX: %d, PCR %d..%d, SDU %d\n",vcc->qos.txtp.traffic_class,
+ pr_debug("VCC %d.%d, AAL %d\n",vpi,vci,vcc->qos.aal);
+ pr_debug(" TX: %d, PCR %d..%d, SDU %d\n",vcc->qos.txtp.traffic_class,
vcc->qos.txtp.min_pcr,vcc->qos.txtp.max_pcr,vcc->qos.txtp.max_sdu);
- DPRINTK(" RX: %d, PCR %d..%d, SDU %d\n",vcc->qos.rxtp.traffic_class,
+ pr_debug(" RX: %d, PCR %d..%d, SDU %d\n",vcc->qos.rxtp.traffic_class,
vcc->qos.rxtp.min_pcr,vcc->qos.rxtp.max_pcr,vcc->qos.rxtp.max_sdu);
if (dev->ops->open) {
struct atm_vcc *vcc = ATM_SD(sock);
int error;
- DPRINTK("vcc_connect (vpi %d, vci %d)\n",vpi,vci);
+ pr_debug("vcc_connect (vpi %d, vci %d)\n",vpi,vci);
if (sock->state == SS_CONNECTED)
return -EISCONN;
if (sock->state != SS_UNCONNECTED)
else
if (test_bit(ATM_VF_PARTIAL,&vcc->flags))
return -EINVAL;
- DPRINTK("vcc_connect (TX: cl %d,bw %d-%d,sdu %d; "
+ pr_debug("vcc_connect (TX: cl %d,bw %d-%d,sdu %d; "
"RX: cl %d,bw %d-%d,sdu %d,AAL %s%d)\n",
vcc->qos.txtp.traffic_class,vcc->qos.txtp.min_pcr,
vcc->qos.txtp.max_pcr,vcc->qos.txtp.max_sdu,
if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS ||
vcc->qos.rxtp.traffic_class == ATM_ANYCLASS)
return -EINVAL;
- if (itf != ATM_ITF_ANY) {
- dev = atm_dev_lookup(itf);
- if (!dev)
- return -ENODEV;
- error = __vcc_connect(vcc, dev, vpi, vci);
- if (error) {
- atm_dev_put(dev);
- return error;
- }
+ if (likely(itf != ATM_ITF_ANY)) {
+ dev = try_then_request_module(atm_dev_lookup(itf), "atm-device-%d", itf);
} else {
- struct list_head *p, *next;
-
dev = NULL;
- spin_lock(&atm_dev_lock);
- list_for_each_safe(p, next, &atm_devs) {
- dev = list_entry(p, struct atm_dev, dev_list);
+ mutex_lock(&atm_dev_mutex);
+ if (!list_empty(&atm_devs)) {
+ dev = list_entry(atm_devs.next, struct atm_dev, dev_list);
atm_dev_hold(dev);
- spin_unlock(&atm_dev_lock);
- if (!__vcc_connect(vcc, dev, vpi, vci))
- break;
- atm_dev_put(dev);
- dev = NULL;
- spin_lock(&atm_dev_lock);
}
- spin_unlock(&atm_dev_lock);
- if (!dev)
- return -ENODEV;
+ mutex_unlock(&atm_dev_mutex);
+ }
+ if (!dev)
+ return -ENODEV;
+ error = __vcc_connect(vcc, dev, vpi, vci);
+ if (error) {
+ atm_dev_put(dev);
+ return error;
}
if (vpi == ATM_VPI_UNSPEC || vci == ATM_VCI_UNSPEC)
set_bit(ATM_VF_PARTIAL,&vcc->flags);
if (!skb)
return error;
- copied = skb->len;
+ copied = skb->len;
if (copied > size) {
- copied = size;
+ copied = size;
msg->msg_flags |= MSG_TRUNC;
}
- error = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
- if (error)
- return error;
- sock_recv_timestamp(msg, sk, skb);
- DPRINTK("RcvM %d -= %d\n", atomic_read(&sk->rmem_alloc), skb->truesize);
- atm_return(vcc, skb->truesize);
- skb_free_datagram(sk, skb);
- return copied;
+ error = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ if (error)
+ return error;
+ sock_recv_timestamp(msg, sk, skb);
+ pr_debug("RcvM %d -= %d\n", atomic_read(&sk->sk_rmem_alloc), skb->truesize);
+ atm_return(vcc, skb->truesize);
+ skb_free_datagram(sk, skb);
+ return copied;
}
error = -EMSGSIZE;
goto out;
}
- /* verify_area is done by net/socket.c */
+
eff = (size+3) & ~3; /* align to word boundary */
prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
error = 0;
}
-static int check_tp(struct atm_trafprm *tp)
+static int check_tp(const struct atm_trafprm *tp)
{
/* @@@ Should be merged with adjust_tp */
if (!tp->traffic_class || tp->traffic_class == ATM_ANYCLASS) return 0;
}
-static int check_qos(struct atm_qos *qos)
+static int check_qos(const struct atm_qos *qos)
{
int error;
if (!qos->txtp.traffic_class && !qos->rxtp.traffic_class)
- return -EINVAL;
+ return -EINVAL;
if (qos->txtp.traffic_class != qos->rxtp.traffic_class &&
qos->txtp.traffic_class && qos->rxtp.traffic_class &&
qos->txtp.traffic_class != ATM_ANYCLASS &&
printk(KERN_ERR "atmsvc_init() failed with %d\n", error);
goto out_atmpvc_exit;
}
- if ((error = atm_proc_init()) < 0) {
+ if ((error = atm_proc_init()) < 0) {
printk(KERN_ERR "atm_proc_init() failed with %d\n",error);
goto out_atmsvc_exit;
}
+ if ((error = atm_sysfs_init()) < 0) {
+ printk(KERN_ERR "atm_sysfs_init() failed with %d\n",error);
+ goto out_atmproc_exit;
+ }
out:
return error;
+out_atmproc_exit:
+ atm_proc_exit();
out_atmsvc_exit:
atmsvc_exit();
out_atmpvc_exit:
static void __exit atm_exit(void)
{
atm_proc_exit();
+ atm_sysfs_exit();
atmsvc_exit();
atmpvc_exit();
proto_unregister(&vcc_proto);
}
-module_init(atm_init);
+subsys_initcall(atm_init);
+
module_exit(atm_exit);
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff