#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/string.h>
-#include <linux/smp_lock.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <net/ax25.h>
switch (sk->sk_state) {
case TCP_SYN_SENT: /* still trying */
err = -EINPROGRESS;
- goto out;
+ goto out_release;
case TCP_ESTABLISHED: /* connection established */
sock->state = SS_CONNECTED;
- goto out;
+ goto out_release;
case TCP_CLOSE: /* connection refused */
sock->state = SS_UNCONNECTED;
err = -ECONNREFUSED;
- goto out;
+ goto out_release;
}
}
if (sk->sk_state == TCP_ESTABLISHED && sk->sk_type == SOCK_SEQPACKET) {
err = -EISCONN; /* No reconnect on a seqpacket socket */
- goto out;
+ goto out_release;
}
sk->sk_state = TCP_CLOSE;
/* Valid number of digipeaters ? */
if (fsa->fsa_ax25.sax25_ndigis < 1 || fsa->fsa_ax25.sax25_ndigis > AX25_MAX_DIGIS) {
err = -EINVAL;
- goto out;
+ goto out_release;
}
if ((digi = kmalloc(sizeof(ax25_digi), GFP_KERNEL)) == NULL) {
err = -ENOBUFS;
- goto out;
+ goto out_release;
}
digi->ndigi = fsa->fsa_ax25.sax25_ndigis;
current->comm);
if ((err = ax25_rt_autobind(ax25, &fsa->fsa_ax25.sax25_call)) < 0) {
kfree(digi);
- goto out;
+ goto out_release;
}
ax25_fillin_cb(ax25, ax25->ax25_dev);
if (ax25->ax25_dev == NULL) {
kfree(digi);
err = -EHOSTUNREACH;
- goto out;
+ goto out_release;
}
}
kfree(digi);
err = -EADDRINUSE; /* Already such a connection */
ax25_cb_put(ax25t);
- goto out;
+ goto out_release;
}
ax25->dest_addr = fsa->fsa_ax25.sax25_call;
if (sk->sk_type != SOCK_SEQPACKET) {
sock->state = SS_CONNECTED;
sk->sk_state = TCP_ESTABLISHED;
- goto out;
+ goto out_release;
}
/* Move to connecting socket, ax.25 lapb WAIT_UA.. */
/* Now the loop */
if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) {
err = -EINPROGRESS;
- goto out;
+ goto out_release;
}
if (sk->sk_state == TCP_SYN_SENT) {
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
+ DEFINE_WAIT(wait);
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait,
+ TASK_INTERRUPTIBLE);
if (sk->sk_state != TCP_SYN_SENT)
break;
- set_current_state(TASK_INTERRUPTIBLE);
- release_sock(sk);
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+
+ if (err)
+ goto out_release;
}
if (sk->sk_state != TCP_ESTABLISHED) {
/* Not in ABM, not in WAIT_UA -> failed */
sock->state = SS_UNCONNECTED;
err = sock_error(sk); /* Always set at this point */
- goto out;
+ goto out_release;
}
sock->state = SS_CONNECTED;
- err=0;
-out:
+ err = 0;
+out_release:
release_sock(sk);
return err;
}
-
static int ax25_accept(struct socket *sock, struct socket *newsock, int flags)
{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
struct sk_buff *skb;
struct sock *newsk;
+ DEFINE_WAIT(wait);
struct sock *sk;
int err = 0;
* The read queue this time is holding sockets ready to use
* hooked into the SABM we saved
*/
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
skb = skb_dequeue(&sk->sk_receive_queue);
if (skb)
break;
- release_sock(sk);
- current->state = TASK_INTERRUPTIBLE;
if (flags & O_NONBLOCK) {
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -EWOULDBLOCK;
+ err = -EWOULDBLOCK;
+ break;
}
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+
+ if (err)
+ goto out;
newsk = skb->sk;
newsk->sk_socket = newsock;
struct sockaddr_ax25 sax;
struct sk_buff *skb;
ax25_digi dtmp, *dp;
- unsigned char *asmptr;
ax25_cb *ax25;
size_t size;
int lv, err, addr_len = msg->msg_namelen;
skb_reset_network_header(skb);
/* Add the PID if one is not supplied by the user in the skb */
- if (!ax25->pidincl) {
- asmptr = skb_push(skb, 1);
- *asmptr = sk->sk_protocol;
- }
+ if (!ax25->pidincl)
+ *skb_push(skb, 1) = sk->sk_protocol;
SOCK_DEBUG(sk, "AX.25: Transmitting buffer\n");
goto out;
}
- asmptr = skb_push(skb, 1 + ax25_addr_size(dp));
+ skb_push(skb, 1 + ax25_addr_size(dp));
SOCK_DEBUG(sk, "Building AX.25 Header (dp=%p).\n", dp);
SOCK_DEBUG(sk, "Num digipeaters=%d\n", dp->ndigi);
/* Build an AX.25 header */
- asmptr += (lv = ax25_addr_build(asmptr, &ax25->source_addr,
- &sax.sax25_call, dp,
- AX25_COMMAND, AX25_MODULUS));
+ lv = ax25_addr_build(skb->data, &ax25->source_addr, &sax.sax25_call,
+ dp, AX25_COMMAND, AX25_MODULUS);
SOCK_DEBUG(sk, "Built header (%d bytes)\n",lv);
- skb->h.raw = asmptr;
+ skb_set_transport_header(skb, lv);
- SOCK_DEBUG(sk, "base=%p pos=%p\n", skb->data, asmptr);
+ SOCK_DEBUG(sk, "base=%p pos=%p\n",
+ skb->data, skb_transport_header(skb));
- *asmptr = AX25_UI;
+ *skb_transport_header(skb) = AX25_UI;
/* Datagram frames go straight out of the door as UI */
ax25_queue_xmit(skb, ax25->ax25_dev->dev);
if (!ax25_sk(sk)->pidincl)
skb_pull(skb, 1); /* Remove PID */
- skb->h.raw = skb->data;
- copied = skb->len;
+ skb_reset_transport_header(skb);
+ copied = skb->len;
if (copied > size) {
copied = size;
return 0;
}
-static struct seq_operations ax25_info_seqops = {
+static const struct seq_operations ax25_info_seqops = {
.start = ax25_info_start,
.next = ax25_info_next,
.stop = ax25_info_stop,