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Commit f6932f56 authored by Chas Williams's avatar Chas Williams Committed by David S. Miller
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[ATM]: Remove recvmsg and rename atm_async_release_vcc.

parent e0380eac
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Showing with 400 additions and 262 deletions
include/linux/atmdev.h
View file @ f6932f56
......@@ -452,7 +452,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc,int pdu_size,
int atm_find_ci(struct atm_vcc *vcc,short *vpi,int *vci);
int atm_pcr_goal(struct atm_trafprm *tp);
void atm_async_release_vcc(struct atm_vcc *vcc,int reply);
void vcc_release_async(struct atm_vcc *vcc, int reply);
#endif /* __KERNEL__ */
......
net/atm/clip.c
View file @ f6932f56
......@@ -140,7 +140,7 @@ static void idle_timer_check(unsigned long dummy)
DPRINTK("releasing vcc %p->%p of "
"entry %p\n",clip_vcc,clip_vcc->vcc,
entry);
atm_async_release_vcc(clip_vcc->vcc,
vcc_release_async(clip_vcc->vcc,
-ETIMEDOUT);
}
if (entry->vccs ||
......
net/atm/common.c
View file @ f6932f56
......@@ -239,15 +239,16 @@ int atm_release(struct socket *sock)
}
void atm_async_release_vcc(struct atm_vcc *vcc,int reply)
void vcc_release_async(struct atm_vcc *vcc, int reply)
{
set_bit(ATM_VF_CLOSE,&vcc->flags);
set_bit(ATM_VF_CLOSE, &vcc->flags);
vcc->reply = reply;
vcc->sk->sk_err = -reply;
wake_up(&vcc->sleep);
}
EXPORT_SYMBOL(atm_async_release_vcc);
EXPORT_SYMBOL(vcc_release_async);
static int adjust_tp(struct atm_trafprm *tp,unsigned char aal)
......@@ -276,7 +277,7 @@ static int adjust_tp(struct atm_trafprm *tp,unsigned char aal)
}
static int atm_do_connect_dev(struct atm_vcc *vcc,struct atm_dev *dev,int vpi,
static int __vcc_connect(struct atm_vcc *vcc, struct atm_dev *dev, int vpi,
int vci)
{
int error;
......@@ -334,29 +335,26 @@ static int atm_do_connect_dev(struct atm_vcc *vcc,struct atm_dev *dev,int vpi,
}
static int atm_do_connect(struct atm_vcc *vcc,int itf,int vpi,int vci)
int vcc_connect(struct socket *sock, int itf, short vpi, int vci)
{
struct atm_dev *dev;
int return_val;
dev = atm_dev_lookup(itf);
if (!dev)
return_val = -ENODEV;
else {
return_val = atm_do_connect_dev(vcc,dev,vpi,vci);
if (return_val) atm_dev_release(dev);
}
return return_val;
}
struct atm_vcc *vcc = ATM_SD(sock);
int error;
DPRINTK("vcc_connect (vpi %d, vci %d)\n",vpi,vci);
if (sock->state == SS_CONNECTED)
return -EISCONN;
if (sock->state != SS_UNCONNECTED)
return -EINVAL;
if (!(vpi || vci))
return -EINVAL;
int atm_connect_vcc(struct atm_vcc *vcc,int itf,short vpi,int vci)
{
if (vpi != ATM_VPI_UNSPEC && vci != ATM_VCI_UNSPEC)
clear_bit(ATM_VF_PARTIAL,&vcc->flags);
else if (test_bit(ATM_VF_PARTIAL,&vcc->flags)) return -EINVAL;
DPRINTK("atm_connect (TX: cl %d,bw %d-%d,sdu %d; "
else
if (test_bit(ATM_VF_PARTIAL,&vcc->flags))
return -EINVAL;
DPRINTK("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,
......@@ -364,141 +362,135 @@ int atm_connect_vcc(struct atm_vcc *vcc,int itf,short vpi,int vci)
vcc->qos.rxtp.max_pcr,vcc->qos.rxtp.max_sdu,
vcc->qos.aal == ATM_AAL5 ? "" : vcc->qos.aal == ATM_AAL0 ? "" :
" ??? code ",vcc->qos.aal == ATM_AAL0 ? 0 : vcc->qos.aal);
if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) return -EBADFD;
if (!test_bit(ATM_VF_HASQOS, &vcc->flags))
return -EBADFD;
if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS ||
vcc->qos.rxtp.traffic_class == ATM_ANYCLASS)
return -EINVAL;
if (itf != ATM_ITF_ANY) {
int error;
error = atm_do_connect(vcc,itf,vpi,vci);
if (error) return error;
dev = atm_dev_lookup(itf);
error = __vcc_connect(vcc, dev, vpi, vci);
if (error) {
atm_dev_release(dev);
return error;
}
else {
struct atm_dev *dev = NULL;
} 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);
atm_dev_hold(dev);
spin_unlock(&atm_dev_lock);
if (!atm_do_connect_dev(vcc,dev,vpi,vci))
if (!__vcc_connect(vcc, dev, vpi, vci))
break;
atm_dev_release(dev);
dev = NULL;
spin_lock(&atm_dev_lock);
}
spin_unlock(&atm_dev_lock);
if (!dev) return -ENODEV;
if (!dev)
return -ENODEV;
}
if (vpi == ATM_VPI_UNSPEC || vci == ATM_VCI_UNSPEC)
set_bit(ATM_VF_PARTIAL,&vcc->flags);
return 0;
}
int atm_connect(struct socket *sock,int itf,short vpi,int vci)
{
int error;
DPRINTK("atm_connect (vpi %d, vci %d)\n",vpi,vci);
if (sock->state == SS_CONNECTED) return -EISCONN;
if (sock->state != SS_UNCONNECTED) return -EINVAL;
if (!(vpi || vci)) return -EINVAL;
error = atm_connect_vcc(ATM_SD(sock),itf,vpi,vci);
if (error) return error;
if (test_bit(ATM_VF_READY,&ATM_SD(sock)->flags))
sock->state = SS_CONNECTED;
return 0;
}
int atm_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int total_len, int flags)
int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
int size, int flags)
{
DECLARE_WAITQUEUE(wait,current);
struct sock *sk = sock->sk;
struct atm_vcc *vcc;
struct sk_buff *skb;
int eff_len,error;
void *buff;
int size;
int copied, error = -EINVAL;
if (sock->state != SS_CONNECTED) return -ENOTCONN;
if (flags & ~MSG_DONTWAIT) return -EOPNOTSUPP;
if (m->msg_iovlen != 1) return -ENOSYS; /* fix this later @@@ */
buff = m->msg_iov->iov_base;
size = m->msg_iov->iov_len;
if (sock->state != SS_CONNECTED)
return -ENOTCONN;
if (flags & ~MSG_DONTWAIT) /* only handle MSG_DONTWAIT */
return -EOPNOTSUPP;
vcc = ATM_SD(sock);
add_wait_queue(&vcc->sleep,&wait);
set_current_state(TASK_INTERRUPTIBLE);
error = 1; /* <= 0 is error */
while (!(skb = skb_dequeue(&vcc->sk->sk_receive_queue))) {
if (test_bit(ATM_VF_RELEASED,&vcc->flags) ||
test_bit(ATM_VF_CLOSE,&vcc->flags)) {
error = vcc->reply;
break;
}
if (!test_bit(ATM_VF_READY,&vcc->flags)) {
error = 0;
break;
}
if (flags & MSG_DONTWAIT) {
error = -EAGAIN;
break;
}
schedule();
set_current_state(TASK_INTERRUPTIBLE);
if (signal_pending(current)) {
error = -ERESTARTSYS;
break;
}
test_bit(ATM_VF_CLOSE,&vcc->flags))
return vcc->reply;
if (!test_bit(ATM_VF_READY, &vcc->flags))
return 0;
skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &error);
if (!skb)
return error;
copied = skb->len;
if (copied > size) {
copied = size;
msg->msg_flags |= MSG_TRUNC;
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&vcc->sleep,&wait);
if (error <= 0) return error;
sock_recv_timestamp(m, vcc->sk, skb);
eff_len = skb->len > size ? size : skb->len;
if (skb->len > size) /* Not fit ? Report it... */
m->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);
if (vcc->dev->ops->feedback)
vcc->dev->ops->feedback(vcc,skb,(unsigned long) skb->data,
(unsigned long) buff,eff_len);
DPRINTK("RcvM %d -= %d\n", atomic_read(&vcc->sk->sk_rmem_alloc),
skb->truesize);
atm_return(vcc,skb->truesize);
error = copy_to_user(buff,skb->data,eff_len) ? -EFAULT : 0;
kfree_skb(skb);
return error ? error : eff_len;
vcc->dev->ops->feedback(vcc, skb, (unsigned long) skb->data,
(unsigned long) msg->msg_iov->iov_base, copied);
DPRINTK("RcvM %d -= %d\n", atomic_read(&vcc->sk->rmem_alloc), skb->truesize);
atm_return(vcc, skb->truesize);
skb_free_datagram(sk, skb);
return copied;
}
int atm_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int vcc_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int total_len)
{
DECLARE_WAITQUEUE(wait,current);
struct sock *sk = sock->sk;
DEFINE_WAIT(wait);
struct atm_vcc *vcc;
struct sk_buff *skb;
int eff,error;
const void *buff;
int size;
if (sock->state != SS_CONNECTED) return -ENOTCONN;
if (m->msg_name) return -EISCONN;
if (m->msg_iovlen != 1) return -ENOSYS; /* fix this later @@@ */
lock_sock(sk);
if (sock->state != SS_CONNECTED) {
error = -ENOTCONN;
goto out;
}
if (m->msg_name) {
error = -EISCONN;
goto out;
}
if (m->msg_iovlen != 1) {
error = -ENOSYS; /* fix this later @@@ */
goto out;
}
buff = m->msg_iov->iov_base;
size = m->msg_iov->iov_len;
vcc = ATM_SD(sock);
if (test_bit(ATM_VF_RELEASED,&vcc->flags) ||
test_bit(ATM_VF_CLOSE,&vcc->flags))
return vcc->reply;
if (!test_bit(ATM_VF_READY,&vcc->flags)) return -EPIPE;
if (!size) return 0;
if (size < 0 || size > vcc->qos.txtp.max_sdu) return -EMSGSIZE;
if (test_bit(ATM_VF_RELEASED, &vcc->flags) ||
test_bit(ATM_VF_CLOSE, &vcc->flags)) {
error = vcc->reply;
goto out;
}
if (!test_bit(ATM_VF_READY, &vcc->flags)) {
error = -EPIPE;
goto out;
}
if (!size) {
error = 0;
goto out;
}
if (size < 0 || size > vcc->qos.txtp.max_sdu) {
error = -EMSGSIZE;
goto out;
}
/* verify_area is done by net/socket.c */
eff = (size+3) & ~3; /* align to word boundary */
add_wait_queue(&vcc->sleep,&wait);
set_current_state(TASK_INTERRUPTIBLE);
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
error = 0;
while (!(skb = alloc_tx(vcc,eff))) {
if (m->msg_flags & MSG_DONTWAIT) {
......@@ -506,7 +498,6 @@ int atm_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
break;
}
schedule();
set_current_state(TASK_INTERRUPTIBLE);
if (signal_pending(current)) {
error = -ERESTARTSYS;
break;
......@@ -520,19 +511,24 @@ int atm_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
error = -EPIPE;
break;
}
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&vcc->sleep,&wait);
if (error) return error;
finish_wait(&vcc->sleep, &wait);
if (error)
goto out;
skb->dev = NULL; /* for paths shared with net_device interfaces */
ATM_SKB(skb)->atm_options = vcc->atm_options;
if (copy_from_user(skb_put(skb,size),buff,size)) {
kfree_skb(skb);
return -EFAULT;
error = -EFAULT;
goto out;
}
if (eff != size) memset(skb->data+size,0,eff-size);
error = vcc->dev->ops->send(vcc,skb);
return error ? error : size;
error = error ? error : size;
out:
release_sock(sk);
return error;
}
......@@ -880,14 +876,16 @@ static int check_qos(struct atm_qos *qos)
return check_tp(&qos->rxtp);
}
static int atm_do_setsockopt(struct socket *sock,int level,int optname,
void *optval,int optlen)
int vcc_setsockopt(struct socket *sock, int level, int optname,
char *optval, int optlen)
{
struct atm_vcc *vcc;
unsigned long value;
int error;
if (__SO_LEVEL_MATCH(optname, level) && optlen != __SO_SIZE(optname))
return -EINVAL;
vcc = ATM_SD(sock);
switch (optname) {
case SO_ATMQOS:
......@@ -921,10 +919,16 @@ static int atm_do_setsockopt(struct socket *sock,int level,int optname,
}
static int atm_do_getsockopt(struct socket *sock,int level,int optname,
void *optval,int optlen)
int vcc_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
{
struct atm_vcc *vcc;
int len;
if (get_user(len, optlen))
return -EFAULT;
if (__SO_LEVEL_MATCH(optname, level) && len != __SO_SIZE(optname))
return -EINVAL;
vcc = ATM_SD(sock);
switch (optname) {
......@@ -955,28 +959,7 @@ static int atm_do_getsockopt(struct socket *sock,int level,int optname,
break;
}
if (!vcc->dev || !vcc->dev->ops->getsockopt) return -EINVAL;
return vcc->dev->ops->getsockopt(vcc,level,optname,optval,optlen);
}
int atm_setsockopt(struct socket *sock,int level,int optname,char *optval,
int optlen)
{
if (__SO_LEVEL_MATCH(optname, level) && optlen != __SO_SIZE(optname))
return -EINVAL;
return atm_do_setsockopt(sock,level,optname,optval,optlen);
}
int atm_getsockopt(struct socket *sock,int level,int optname,
char *optval,int *optlen)
{
int len;
if (get_user(len,optlen)) return -EFAULT;
if (__SO_LEVEL_MATCH(optname, level) && len != __SO_SIZE(optname))
return -EINVAL;
return atm_do_getsockopt(sock,level,optname,optval,len);
return vcc->dev->ops->getsockopt(vcc, level, optname, optval, len);
}
......
net/atm/common.h
View file @ f6932f56
......@@ -12,19 +12,18 @@
int atm_create(struct socket *sock,int protocol,int family);
int atm_release(struct socket *sock);
int atm_connect(struct socket *sock,int itf,short vpi,int vci);
int atm_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int total_len, int flags);
int atm_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int vcc_connect(struct socket *sock, int itf, short vpi, int vci);
int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
int size, int flags);
int vcc_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *m,
int total_len);
unsigned int atm_poll(struct file *file,struct socket *sock,poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int atm_setsockopt(struct socket *sock,int level,int optname,char *optval,
int vcc_setsockopt(struct socket *sock, int level, int optname, char *optval,
int optlen);
int atm_getsockopt(struct socket *sock,int level,int optname,char *optval,
int vcc_getsockopt(struct socket *sock, int level, int optname, char *optval,
int *optlen);
int atm_connect_vcc(struct atm_vcc *vcc,int itf,short vpi,int vci);
void atm_release_vcc_sk(struct sock *sk,int free_sk);
void atm_shutdown_dev(struct atm_dev *dev);
......
net/atm/lec.c
View file @ f6932f56
......@@ -1079,7 +1079,7 @@ lec_arp_clear_vccs(struct lec_arp_table *entry)
clear_bit(ATM_VF_READY,&entry->vcc->flags);
entry->vcc->push(entry->vcc, NULL);
#endif
atm_async_release_vcc(entry->vcc, -EPIPE);
vcc_release_async(entry->vcc, -EPIPE);
entry->vcc = NULL;
}
if (entry->recv_vcc) {
......@@ -1089,7 +1089,7 @@ lec_arp_clear_vccs(struct lec_arp_table *entry)
clear_bit(ATM_VF_READY,&entry->recv_vcc->flags);
entry->recv_vcc->push(entry->recv_vcc, NULL);
#endif
atm_async_release_vcc(entry->recv_vcc, -EPIPE);
vcc_release_async(entry->recv_vcc, -EPIPE);
entry->recv_vcc = NULL;
}
}
......
net/atm/mpoa_caches.c
View file @ f6932f56
......@@ -212,7 +212,7 @@ static void in_cache_remove_entry(in_cache_entry *entry,
client->eg_ops->put(eg_entry);
return;
}
atm_async_release_vcc(vcc, -EPIPE);
vcc_release_async(vcc, -EPIPE);
}
return;
......@@ -447,7 +447,7 @@ static void eg_cache_remove_entry(eg_cache_entry *entry,
client->in_ops->put(in_entry);
return;
}
atm_async_release_vcc(vcc, -EPIPE);
vcc_release_async(vcc, -EPIPE);
}
return;
......
net/atm/pvc.c
View file @ f6932f56
......@@ -31,20 +31,29 @@ static int pvc_shutdown(struct socket *sock,int how)
static int pvc_bind(struct socket *sock,struct sockaddr *sockaddr,
int sockaddr_len)
{
struct sock *sk = sock->sk;
struct sockaddr_atmpvc *addr;
struct atm_vcc *vcc;
int error;
if (sockaddr_len != sizeof(struct sockaddr_atmpvc)) return -EINVAL;
addr = (struct sockaddr_atmpvc *) sockaddr;
if (addr->sap_family != AF_ATMPVC) return -EAFNOSUPPORT;
lock_sock(sk);
vcc = ATM_SD(sock);
if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) return -EBADFD;
if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) {
error = -EBADFD;
goto out;
}
if (test_bit(ATM_VF_PARTIAL,&vcc->flags)) {
if (vcc->vpi != ATM_VPI_UNSPEC) addr->sap_addr.vpi = vcc->vpi;
if (vcc->vci != ATM_VCI_UNSPEC) addr->sap_addr.vci = vcc->vci;
}
return atm_connect(sock,addr->sap_addr.itf,addr->sap_addr.vpi,
error = vcc_connect(sock, addr->sap_addr.itf, addr->sap_addr.vpi,
addr->sap_addr.vci);
out:
release_sock(sk);
return error;
}
......@@ -54,6 +63,31 @@ static int pvc_connect(struct socket *sock,struct sockaddr *sockaddr,
return pvc_bind(sock,sockaddr,sockaddr_len);
}
static int pvc_setsockopt(struct socket *sock, int level, int optname,
char *optval, int optlen)
{
struct sock *sk = sock->sk;
int error;
lock_sock(sk);
error = vcc_setsockopt(sock, level, optname, optval, optlen);
release_sock(sk);
return error;
}
static int pvc_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
{
struct sock *sk = sock->sk;
int error;
lock_sock(sk);
error = vcc_getsockopt(sock, level, optname, optval, optlen);
release_sock(sk);
return error;
}
static int pvc_getname(struct socket *sock,struct sockaddr *sockaddr,
int *sockaddr_len,int peer)
......@@ -72,7 +106,7 @@ static int pvc_getname(struct socket *sock,struct sockaddr *sockaddr,
}
static struct proto_ops SOCKOPS_WRAPPED(pvc_proto_ops) = {
static struct proto_ops pvc_proto_ops = {
.family = PF_ATMPVC,
.release = atm_release,
......@@ -85,19 +119,15 @@ static struct proto_ops SOCKOPS_WRAPPED(pvc_proto_ops) = {
.ioctl = vcc_ioctl,
.listen = sock_no_listen,
.shutdown = pvc_shutdown,
.setsockopt = atm_setsockopt,
.getsockopt = atm_getsockopt,
.sendmsg = atm_sendmsg,
.recvmsg = atm_recvmsg,
.setsockopt = pvc_setsockopt,
.getsockopt = pvc_getsockopt,
.sendmsg = vcc_sendmsg,
.recvmsg = vcc_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
};
#include <linux/smp_lock.h>
SOCKOPS_WRAP(pvc_proto, PF_ATMPVC);
static int pvc_create(struct socket *sock,int protocol)
{
sock->ops = &pvc_proto_ops;
......
net/atm/signaling.c
View file @ f6932f56
......@@ -124,14 +124,16 @@ static int sigd_send(struct atm_vcc *vcc,struct sk_buff *skb)
clear_bit(ATM_VF_REGIS,&vcc->flags);
clear_bit(ATM_VF_READY,&vcc->flags);
vcc->reply = msg->reply;
vcc->sk->sk_err = -msg->reply;
break;
case as_indicate:
vcc = *(struct atm_vcc **) &msg->listen_vcc;
DPRINTK("as_indicate!!!\n");
lock_sock(vcc->sk);
if (vcc->sk->sk_ack_backlog ==
vcc->sk->sk_max_ack_backlog) {
sigd_enq(0,as_reject,vcc,NULL,NULL);
return 0;
goto as_indicate_complete;
}
vcc->sk->sk_ack_backlog++;
skb_queue_tail(&vcc->sk->sk_receive_queue, skb);
......@@ -140,11 +142,14 @@ static int sigd_send(struct atm_vcc *vcc,struct sk_buff *skb)
&vcc->sleep);
vcc->callback(vcc);
}
as_indicate_complete:
release_sock(vcc->sk);
return 0;
case as_close:
set_bit(ATM_VF_RELEASED,&vcc->flags);
clear_bit(ATM_VF_READY,&vcc->flags);
vcc->reply = msg->reply;
vcc->sk->sk_err = -msg->reply;
break;
case as_modify:
modify_qos(vcc,msg);
......@@ -202,6 +207,7 @@ static void purge_vccs(struct atm_vcc *vcc)
!test_bit(ATM_VF_META,&vcc->flags)) {
set_bit(ATM_VF_RELEASED,&vcc->flags);
vcc->reply = -EUNATCH;
vcc->sk->sk_err = EUNATCH;
wake_up(&vcc->sleep);
}
vcc = vcc->next;
......
net/atm/svc.c
View file @ f6932f56
......@@ -59,18 +59,18 @@ static int svc_shutdown(struct socket *sock,int how)
static void svc_disconnect(struct atm_vcc *vcc)
{
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
struct sk_buff *skb;
DPRINTK("svc_disconnect %p\n",vcc);
if (test_bit(ATM_VF_REGIS,&vcc->flags)) {
add_wait_queue(&vcc->sleep,&wait);
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
sigd_enq(vcc,as_close,NULL,NULL,NULL);
while (!test_bit(ATM_VF_RELEASED,&vcc->flags) && sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
}
remove_wait_queue(&vcc->sleep,&wait);
finish_wait(&vcc->sleep, &wait);
}
/* beware - socket is still in use by atmsigd until the last
as_indicate has been answered */
......@@ -107,80 +107,138 @@ static int svc_release(struct socket *sock)
static int svc_bind(struct socket *sock,struct sockaddr *sockaddr,
int sockaddr_len)
{
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
struct sock *sk = sock->sk;
struct sockaddr_atmsvc *addr;
struct atm_vcc *vcc;
int error;
if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) return -EINVAL;
if (sock->state == SS_CONNECTED) return -EISCONN;
if (sock->state != SS_UNCONNECTED) return -EINVAL;
if (sockaddr_len != sizeof(struct sockaddr_atmsvc))
return -EINVAL;
lock_sock(sk);
if (sock->state == SS_CONNECTED) {
error = -EISCONN;
goto out;
}
if (sock->state != SS_UNCONNECTED) {
error = -EINVAL;
goto out;
}
vcc = ATM_SD(sock);
if (test_bit(ATM_VF_SESSION,&vcc->flags)) return -EINVAL;
if (test_bit(ATM_VF_SESSION, &vcc->flags)) {
error = -EINVAL;
goto out;
}
addr = (struct sockaddr_atmsvc *) sockaddr;
if (addr->sas_family != AF_ATMSVC) return -EAFNOSUPPORT;
if (addr->sas_family != AF_ATMSVC) {
error = -EAFNOSUPPORT;
goto out;
}
clear_bit(ATM_VF_BOUND,&vcc->flags);
/* failing rebind will kill old binding */
/* @@@ check memory (de)allocation on rebind */
if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) return -EBADFD;
if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) {
error = -EBADFD;
goto out;
}
vcc->local = *addr;
vcc->reply = WAITING;
add_wait_queue(&vcc->sleep,&wait);
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
sigd_enq(vcc,as_bind,NULL,NULL,&vcc->local);
while (vcc->reply == WAITING && sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
}
remove_wait_queue(&vcc->sleep,&wait);
finish_wait(&vcc->sleep, &wait);
clear_bit(ATM_VF_REGIS,&vcc->flags); /* doesn't count */
if (!sigd) return -EUNATCH;
if (!vcc->reply) set_bit(ATM_VF_BOUND,&vcc->flags);
return vcc->reply;
if (!sigd) {
error = -EUNATCH;
goto out;
}
if (!vcc->reply)
set_bit(ATM_VF_BOUND,&vcc->flags);
error = vcc->reply;
out:
release_sock(sk);
return error;
}
static int svc_connect(struct socket *sock,struct sockaddr *sockaddr,
int sockaddr_len,int flags)
{
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
struct sock *sk = sock->sk;
struct sockaddr_atmsvc *addr;
struct atm_vcc *vcc = ATM_SD(sock);
int error;
DPRINTK("svc_connect %p\n",vcc);
if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) return -EINVAL;
if (sock->state == SS_CONNECTED) return -EISCONN;
if (sock->state == SS_CONNECTING) {
if (vcc->reply == WAITING) return -EALREADY;
sock->state = SS_UNCONNECTED;
if (vcc->reply) return vcc->reply;
lock_sock(sk);
if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) {
error = -EINVAL;
goto out;
}
else {
int error;
if (sock->state != SS_UNCONNECTED) return -EINVAL;
if (test_bit(ATM_VF_SESSION,&vcc->flags)) return -EINVAL;
switch (sock->state) {
default:
error = -EINVAL;
goto out;
case SS_CONNECTED:
error = -EISCONN;
goto out;
case SS_CONNECTING:
if (vcc->reply == WAITING) {
error = -EALREADY;
goto out;
}
sock->state = SS_UNCONNECTED;
if (vcc->reply) {
error = vcc->reply;
goto out;
}
break;
case SS_UNCONNECTED:
if (test_bit(ATM_VF_SESSION, &vcc->flags)) {
error = -EINVAL;
goto out;
}
addr = (struct sockaddr_atmsvc *) sockaddr;
if (addr->sas_family != AF_ATMSVC) return -EAFNOSUPPORT;
if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) return -EBADFD;
if (addr->sas_family != AF_ATMSVC) {
error = -EAFNOSUPPORT;
goto out;
}
if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) {
error = -EBADFD;
goto out;
}
if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS ||
vcc->qos.rxtp.traffic_class == ATM_ANYCLASS)
return -EINVAL;
vcc->qos.rxtp.traffic_class == ATM_ANYCLASS) {
error = -EINVAL;
goto out;
}
if (!vcc->qos.txtp.traffic_class &&
!vcc->qos.rxtp.traffic_class) return -EINVAL;
!vcc->qos.rxtp.traffic_class) {
error = -EINVAL;
goto out;
}
vcc->remote = *addr;
vcc->reply = WAITING;
add_wait_queue(&vcc->sleep,&wait);
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
sigd_enq(vcc,as_connect,NULL,NULL,&vcc->remote);
if (flags & O_NONBLOCK) {
remove_wait_queue(&vcc->sleep,&wait);
finish_wait(&vcc->sleep, &wait);
sock->state = SS_CONNECTING;
return -EINPROGRESS;
error = -EINPROGRESS;
goto out;
}
error = 0;
while (vcc->reply == WAITING && sigd) {
set_current_state(TASK_INTERRUPTIBLE);
schedule();
if (!signal_pending(current)) continue;
if (!signal_pending(current)) {
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
continue;
}
DPRINTK("*ABORT*\n");
/*
* This is tricky:
......@@ -196,13 +254,13 @@ static int svc_connect(struct socket *sock,struct sockaddr *sockaddr,
*/
sigd_enq(vcc,as_close,NULL,NULL,NULL);
while (vcc->reply == WAITING && sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
schedule();
}
if (!vcc->reply)
while (!test_bit(ATM_VF_RELEASED,&vcc->flags)
&& sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
prepare_to_wait(&vcc->sleep, &wait, TASK_INTERRUPTIBLE);
schedule();
}
clear_bit(ATM_VF_REGIS,&vcc->flags);
......@@ -212,10 +270,17 @@ static int svc_connect(struct socket *sock,struct sockaddr *sockaddr,
error = -EINTR;
break;
}
remove_wait_queue(&vcc->sleep,&wait);
if (error) return error;
if (!sigd) return -EUNATCH;
if (vcc->reply) return vcc->reply;
finish_wait(&vcc->sleep, &wait);
if (error)
goto out;
if (!sigd) {
error = -EUNATCH;
goto out;
}
if (vcc->reply) {
error = vcc->reply;
goto out;
}
}
/*
* Not supported yet
......@@ -228,56 +293,73 @@ static int svc_connect(struct socket *sock,struct sockaddr *sockaddr,
/*
* #endif
*/
if (!(error = atm_connect(sock,vcc->itf,vcc->vpi,vcc->vci)))
if (!(error = vcc_connect(sock, vcc->itf, vcc->vpi, vcc->vci)))
sock->state = SS_CONNECTED;
else (void) svc_disconnect(vcc);
out:
release_sock(sk);
return error;
}
static int svc_listen(struct socket *sock,int backlog)
{
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
struct sock *sk = sock->sk;
struct atm_vcc *vcc = ATM_SD(sock);
int error;
DPRINTK("svc_listen %p\n",vcc);
lock_sock(sk);
/* let server handle listen on unbound sockets */
if (test_bit(ATM_VF_SESSION,&vcc->flags)) return -EINVAL;
if (test_bit(ATM_VF_SESSION,&vcc->flags)) {
error = -EINVAL;
goto out;
}
vcc->reply = WAITING;
add_wait_queue(&vcc->sleep,&wait);
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
sigd_enq(vcc,as_listen,NULL,NULL,&vcc->local);
while (vcc->reply == WAITING && sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
}
finish_wait(&vcc->sleep, &wait);
if (!sigd) {
error = -EUNATCH;
goto out;
}
remove_wait_queue(&vcc->sleep,&wait);
if (!sigd) return -EUNATCH;
set_bit(ATM_VF_LISTEN,&vcc->flags);
vcc->sk->sk_max_ack_backlog = backlog > 0 ? backlog :
ATM_BACKLOG_DEFAULT;
return vcc->reply;
error = vcc->reply;
out:
release_sock(sk);
return error;
}
static int svc_accept(struct socket *sock,struct socket *newsock,int flags)
{
struct sock *sk = sock->sk;
struct sk_buff *skb;
struct atmsvc_msg *msg;
struct atm_vcc *old_vcc = ATM_SD(sock);
struct atm_vcc *new_vcc;
int error;
lock_sock(sk);
error = svc_create(newsock,0);
if (error)
return error;
goto out;
new_vcc = ATM_SD(newsock);
DPRINTK("svc_accept %p -> %p\n",old_vcc,new_vcc);
while (1) {
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
add_wait_queue(&old_vcc->sleep,&wait);
prepare_to_wait(&old_vcc->sleep, &wait, TASK_INTERRUPTIBLE);
while (!(skb = skb_dequeue(&old_vcc->sk->sk_receive_queue)) &&
sigd) {
if (test_bit(ATM_VF_RELEASED,&old_vcc->flags)) break;
......@@ -289,46 +371,63 @@ static int svc_accept(struct socket *sock,struct socket *newsock,int flags)
error = -EAGAIN;
break;
}
set_current_state(TASK_INTERRUPTIBLE);
release_sock(sk);
schedule();
lock_sock(sk);
if (signal_pending(current)) {
error = -ERESTARTSYS;
break;
}
prepare_to_wait(&old_vcc->sleep, &wait, TASK_INTERRUPTIBLE);
}
finish_wait(&old_vcc->sleep, &wait);
if (error)
goto out;
if (!skb) {
error = -EUNATCH;
goto out;
}
remove_wait_queue(&old_vcc->sleep,&wait);
if (error) return error;
if (!skb) return -EUNATCH;
msg = (struct atmsvc_msg *) skb->data;
new_vcc->qos = msg->qos;
set_bit(ATM_VF_HASQOS,&new_vcc->flags);
new_vcc->remote = msg->svc;
new_vcc->local = msg->local;
new_vcc->sap = msg->sap;
error = atm_connect(newsock,msg->pvc.sap_addr.itf,
msg->pvc.sap_addr.vpi,msg->pvc.sap_addr.vci);
error = vcc_connect(newsock, msg->pvc.sap_addr.itf,
msg->pvc.sap_addr.vpi, msg->pvc.sap_addr.vci);
dev_kfree_skb(skb);
old_vcc->sk->sk_ack_backlog--;
if (error) {
sigd_enq2(NULL,as_reject,old_vcc,NULL,NULL,
&old_vcc->qos,error);
return error == -EAGAIN ? -EBUSY : error;
error = error == -EAGAIN ? -EBUSY : error;
goto out;
}
/* wait should be short, so we ignore the non-blocking flag */
new_vcc->reply = WAITING;
add_wait_queue(&new_vcc->sleep,&wait);
prepare_to_wait(&new_vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
sigd_enq(new_vcc,as_accept,old_vcc,NULL,NULL);
while (new_vcc->reply == WAITING && sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
release_sock(sk);
schedule();
lock_sock(sk);
prepare_to_wait(&new_vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
}
finish_wait(&new_vcc->sleep, &wait);
if (!sigd) {
error = -EUNATCH;
goto out;
}
remove_wait_queue(&new_vcc->sleep,&wait);
if (!sigd) return -EUNATCH;
if (!new_vcc->reply) break;
if (new_vcc->reply != -ERESTARTSYS) return new_vcc->reply;
if (new_vcc->reply != -ERESTARTSYS) {
error = new_vcc->reply;
goto out;
}
}
newsock->state = SS_CONNECTED;
return 0;
out:
release_sock(sk);
return error;
}
......@@ -347,17 +446,17 @@ static int svc_getname(struct socket *sock,struct sockaddr *sockaddr,
int svc_change_qos(struct atm_vcc *vcc,struct atm_qos *qos)
{
DECLARE_WAITQUEUE(wait,current);
DEFINE_WAIT(wait);
vcc->reply = WAITING;
add_wait_queue(&vcc->sleep,&wait);
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
sigd_enq2(vcc,as_modify,NULL,NULL,&vcc->local,qos,0);
while (vcc->reply == WAITING && !test_bit(ATM_VF_RELEASED,&vcc->flags)
&& sigd) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule();
prepare_to_wait(&vcc->sleep, &wait, TASK_UNINTERRUPTIBLE);
}
remove_wait_queue(&vcc->sleep,&wait);
finish_wait(&vcc->sleep, &wait);
if (!sigd) return -EUNATCH;
return vcc->reply;
}
......@@ -366,33 +465,57 @@ int svc_change_qos(struct atm_vcc *vcc,struct atm_qos *qos)
static int svc_setsockopt(struct socket *sock,int level,int optname,
char *optval,int optlen)
{
struct sock *sk = sock->sk;
struct atm_vcc *vcc;
int error = 0;
if (!__SO_LEVEL_MATCH(optname, level) || optname != SO_ATMSAP ||
optlen != sizeof(struct atm_sap))
return atm_setsockopt(sock,level,optname,optval,optlen);
optlen != sizeof(struct atm_sap)) {
error = vcc_setsockopt(sock, level, optname, optval, optlen);
goto out;
}
vcc = ATM_SD(sock);
if (copy_from_user(&vcc->sap,optval,optlen)) return -EFAULT;
set_bit(ATM_VF_HASSAP,&vcc->flags);
return 0;
if (copy_from_user(&vcc->sap, optval, optlen)) {
error = -EFAULT;
goto out;
}
set_bit(ATM_VF_HASSAP, &vcc->flags);
out:
release_sock(sk);
return error;
}
static int svc_getsockopt(struct socket *sock,int level,int optname,
char *optval,int *optlen)
{
int len;
if (!__SO_LEVEL_MATCH(optname, level) || optname != SO_ATMSAP)
return atm_getsockopt(sock,level,optname,optval,optlen);
if (get_user(len,optlen)) return -EFAULT;
if (len != sizeof(struct atm_sap)) return -EINVAL;
return copy_to_user(optval,&ATM_SD(sock)->sap,sizeof(struct atm_sap)) ?
-EFAULT : 0;
struct sock *sk = sock->sk;
int error = 0, len;
lock_sock(sk);
if (!__SO_LEVEL_MATCH(optname, level) || optname != SO_ATMSAP) {
error = vcc_getsockopt(sock, level, optname, optval, optlen);
goto out;
}
if (get_user(len, optlen)) {
error = -EFAULT;
goto out;
}
if (len != sizeof(struct atm_sap)) {
error = -EINVAL;
goto out;
}
if (copy_to_user(optval, &ATM_SD(sock)->sap, sizeof(struct atm_sap))) {
error = -EFAULT;
goto out;
}
out:
release_sock(sk);
return error;
}
static struct proto_ops SOCKOPS_WRAPPED(svc_proto_ops) = {
static struct proto_ops svc_proto_ops = {
.family = PF_ATMSVC,
.release = svc_release,
......@@ -407,16 +530,13 @@ static struct proto_ops SOCKOPS_WRAPPED(svc_proto_ops) = {
.shutdown = svc_shutdown,
.setsockopt = svc_setsockopt,
.getsockopt = svc_getsockopt,
.sendmsg = atm_sendmsg,
.recvmsg = atm_recvmsg,
.sendmsg = vcc_sendmsg,
.recvmsg = vcc_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
};
#include <linux/smp_lock.h>
SOCKOPS_WRAP(svc_proto, PF_ATMSVC);
static int svc_create(struct socket *sock,int protocol)
{
int error;
......
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