#include <net/sock.h>
#include <net/xfrm.h>
+#include <asm/ioctls.h>
#include <asm/semaphore.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
- dccp_pr_debug("entry\n");
- return -ENOIOCTLCMD;
+ int rc = -ENOTCONN;
+
+ lock_sock(sk);
+
+ if (sk->sk_state == DCCP_LISTEN)
+ goto out;
+
+ switch (cmd) {
+ case SIOCINQ: {
+ struct sk_buff *skb;
+ unsigned long amount = 0;
+
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb != NULL) {
+ /*
+ * We will only return the amount of this packet since
+ * that is all that will be read.
+ */
+ amount = skb->len;
+ }
+ rc = put_user(amount, (int __user *)arg);
+ }
+ break;
+ default:
+ rc = -ENOIOCTLCMD;
+ break;
+ }
+out:
+ release_sock(sk);
+ return rc;
}
EXPORT_SYMBOL_GPL(dccp_ioctl);
}
for (i = 0; i < dccp_hashinfo.ehash_size; i++) {
- rwlock_init(&dccp_hashinfo.ehash[i].lock);
INIT_HLIST_HEAD(&dccp_hashinfo.ehash[i].chain);
INIT_HLIST_HEAD(&dccp_hashinfo.ehash[i].twchain);
}
+ if (inet_ehash_locks_alloc(&dccp_hashinfo))
+ goto out_free_dccp_ehash;
+
bhash_order = ehash_order;
do {
if (!dccp_hashinfo.bhash) {
DCCP_CRIT("Failed to allocate DCCP bind hash table");
- goto out_free_dccp_ehash;
+ goto out_free_dccp_locks;
}
for (i = 0; i < dccp_hashinfo.bhash_size; i++) {
out_free_dccp_bhash:
free_pages((unsigned long)dccp_hashinfo.bhash, bhash_order);
dccp_hashinfo.bhash = NULL;
+out_free_dccp_locks:
+ inet_ehash_locks_free(&dccp_hashinfo);
out_free_dccp_ehash:
free_pages((unsigned long)dccp_hashinfo.ehash, ehash_order);
dccp_hashinfo.ehash = NULL;
free_pages((unsigned long)dccp_hashinfo.ehash,
get_order(dccp_hashinfo.ehash_size *
sizeof(struct inet_ehash_bucket)));
+ inet_ehash_locks_free(&dccp_hashinfo);
kmem_cache_destroy(dccp_hashinfo.bind_bucket_cachep);
dccp_ackvec_exit();
dccp_sysctl_exit();