static const char procname[] = "dccpprobe";
static struct {
- struct kfifo *fifo;
+ struct kfifo fifo;
spinlock_t lock;
wait_queue_head_t wait;
struct timespec tstart;
len += vscnprintf(tbuf+len, sizeof(tbuf)-len, fmt, args);
va_end(args);
- kfifo_put(dccpw.fifo, tbuf, len);
+ kfifo_in_locked(&dccpw.fifo, tbuf, len, &dccpw.lock);
wake_up(&dccpw.wait);
}
struct msghdr *msg, size_t size)
{
const struct inet_sock *inet = inet_sk(sk);
- struct ccid3_hc_tx_sock *hctx = NULL;
+ struct ccid3_hc_tx_sock *hc = NULL;
if (ccid_get_current_tx_ccid(dccp_sk(sk)) == DCCPC_CCID3)
- hctx = ccid3_hc_tx_sk(sk);
-
- if (port == 0 || ntohs(inet->dport) == port ||
- ntohs(inet->sport) == port) {
- if (hctx)
- printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %d %d %d %u "
- "%llu %llu %d\n",
- NIPQUAD(inet->saddr), ntohs(inet->sport),
- NIPQUAD(inet->daddr), ntohs(inet->dport), size,
- hctx->s, hctx->rtt, hctx->p, hctx->x_calc,
- hctx->x_recv >> 6, hctx->x >> 6, hctx->t_ipi);
+ hc = ccid3_hc_tx_sk(sk);
+
+ if (port == 0 || ntohs(inet->inet_dport) == port ||
+ ntohs(inet->inet_sport) == port) {
+ if (hc)
+ printl("%pI4:%u %pI4:%u %d %d %d %d %u %llu %llu %d\n",
+ &inet->inet_saddr, ntohs(inet->inet_sport),
+ &inet->inet_daddr, ntohs(inet->inet_dport), size,
+ hc->tx_s, hc->tx_rtt, hc->tx_p,
+ hc->tx_x_calc, hc->tx_x_recv >> 6,
+ hc->tx_x >> 6, hc->tx_t_ipi);
else
- printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d\n",
- NIPQUAD(inet->saddr), ntohs(inet->sport),
- NIPQUAD(inet->daddr), ntohs(inet->dport), size);
+ printl("%pI4:%u %pI4:%u %d\n",
+ &inet->inet_saddr, ntohs(inet->inet_sport),
+ &inet->inet_daddr, ntohs(inet->inet_dport),
+ size);
}
jprobe_return();
static int dccpprobe_open(struct inode *inode, struct file *file)
{
- kfifo_reset(dccpw.fifo);
+ kfifo_reset(&dccpw.fifo);
getnstimeofday(&dccpw.tstart);
return 0;
}
return -ENOMEM;
error = wait_event_interruptible(dccpw.wait,
- __kfifo_len(dccpw.fifo) != 0);
+ kfifo_len(&dccpw.fifo) != 0);
if (error)
goto out_free;
- cnt = kfifo_get(dccpw.fifo, tbuf, len);
+ cnt = kfifo_out_locked(&dccpw.fifo, tbuf, len, &dccpw.lock);
error = copy_to_user(buf, tbuf, cnt) ? -EFAULT : 0;
out_free:
init_waitqueue_head(&dccpw.wait);
spin_lock_init(&dccpw.lock);
- dccpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &dccpw.lock);
- if (IS_ERR(dccpw.fifo))
- return PTR_ERR(dccpw.fifo);
-
+ if (kfifo_alloc(&dccpw.fifo, bufsize, GFP_KERNEL))
+ return ret;
if (!proc_net_fops_create(&init_net, procname, S_IRUSR, &dccpprobe_fops))
goto err0;
- ret = register_jprobe(&dccp_send_probe);
+ try_then_request_module((ret = register_jprobe(&dccp_send_probe)) == 0,
+ "dccp");
if (ret)
goto err1;
err1:
proc_net_remove(&init_net, procname);
err0:
- kfifo_free(dccpw.fifo);
+ kfifo_free(&dccpw.fifo);
return ret;
}
module_init(dccpprobe_init);
static __exit void dccpprobe_exit(void)
{
- kfifo_free(dccpw.fifo);
+ kfifo_free(&dccpw.fifo);
proc_net_remove(&init_net, procname);
unregister_jprobe(&dccp_send_probe);