* be incorporated into the next SCTP release.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/wait.h>
if (params.sack_delay == 0 && params.sack_freq == 0)
return 0;
} else if (optlen == sizeof(struct sctp_assoc_value)) {
- printk(KERN_WARNING "SCTP: Use of struct sctp_assoc_value "
- "in delayed_ack socket option deprecated\n");
- printk(KERN_WARNING "SCTP: Use struct sctp_sack_info instead\n");
+ pr_warn("Use of struct sctp_assoc_value in delayed_ack socket option deprecated\n");
+ pr_warn("Use struct sctp_sack_info instead\n");
if (copy_from_user(¶ms, optval, optlen))
return -EFAULT;
int val;
if (optlen == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in maxseg socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in maxseg socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
if (copy_from_user(&val, optval, optlen))
return -EFAULT;
params.assoc_id = 0;
int assoc_id = 0;
if (optlen == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in max_burst socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in max_burst socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
if (copy_from_user(&val, optval, optlen))
return -EFAULT;
} else if (optlen == sizeof(struct sctp_assoc_value)) {
/* The SCTP ioctl handler. */
SCTP_STATIC int sctp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
- return -ENOIOCTLCMD;
+ int rc = -ENOTCONN;
+
+ sctp_lock_sock(sk);
+
+ /*
+ * SEQPACKET-style sockets in LISTENING state are valid, for
+ * SCTP, so only discard TCP-style sockets in LISTENING state.
+ */
+ if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
+ goto out;
+
+ switch (cmd) {
+ case SIOCINQ: {
+ struct sk_buff *skb;
+ unsigned int 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:
+ sctp_release_sock(sk);
+ return rc;
}
/* This is the function which gets called during socket creation to
SCTP_DBG_OBJCNT_INC(sock);
- /* Set socket backlog limit. */
- sk->sk_backlog.limit = sysctl_sctp_rmem[1];
-
local_bh_disable();
percpu_counter_inc(&sctp_sockets_allocated);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
}
out:
- return (retval);
+ return retval;
}
}
out:
- return (retval);
+ return retval;
}
/* 7.1.12 Enable/Disable message fragmentation (SCTP_DISABLE_FRAGMENTS)
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
} else if (len == sizeof(struct sctp_assoc_value)) {
- printk(KERN_WARNING "SCTP: Use of struct sctp_assoc_value "
- "in delayed_ack socket option deprecated\n");
- printk(KERN_WARNING "SCTP: Use struct sctp_sack_info instead\n");
+ pr_warn("Use of struct sctp_assoc_value in delayed_ack socket option deprecated\n");
+ pr_warn("Use struct sctp_sack_info instead\n");
if (copy_from_user(¶ms, optval, len))
return -EFAULT;
} else
transports) {
memcpy(&temp, &from->ipaddr, sizeof(temp));
sctp_get_pf_specific(sk->sk_family)->addr_v4map(sp, &temp);
- addrlen = sctp_get_af_specific(sk->sk_family)->sockaddr_len;
+ addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
if (space_left < addrlen)
return -ENOMEM;
if (copy_to_user(to, &temp, addrlen))
struct sctp_association *asoc;
if (len == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in maxseg socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in maxseg socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
params.assoc_id = 0;
} else if (len >= sizeof(struct sctp_assoc_value)) {
len = sizeof(struct sctp_assoc_value);
struct sctp_association *asoc;
if (len == sizeof(int)) {
- printk(KERN_WARNING
- "SCTP: Use of int in max_burst socket option deprecated\n");
- printk(KERN_WARNING
- "SCTP: Use struct sctp_assoc_value instead\n");
+ pr_warn("Use of int in max_burst socket option deprecated\n");
+ pr_warn("Use struct sctp_assoc_value instead\n");
params.assoc_id = 0;
} else if (len >= sizeof(struct sctp_assoc_value)) {
len = sizeof(struct sctp_assoc_value);
rover++;
if ((rover < low) || (rover > high))
rover = low;
+ if (inet_is_reserved_local_port(rover))
+ continue;
index = sctp_phashfn(rover);
head = &sctp_port_hashtable[index];
sctp_spin_lock(&head->lock);
*/
int reuse = sk->sk_reuse;
struct sock *sk2;
- struct hlist_node *node;
SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n");
if (pp->fastreuse && sk->sk_reuse &&
/* Note: sk->sk_num gets filled in if ephemeral port request. */
ret = sctp_get_port_local(sk, &addr);
- return (ret ? 1 : 0);
+ return ret ? 1 : 0;
}
/*
tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
if (net_ratelimit()) {
- printk(KERN_INFO
- "SCTP: failed to load transform for %s: %ld\n",
+ pr_info("failed to load transform for %s: %ld\n",
sctp_hmac_alg, PTR_ERR(tfm));
}
return -ENOSYS;
struct sctp_sock *sp = sctp_sk(sk);
unsigned int mask;
- poll_wait(file, sk->sk_sleep, wait);
+ poll_wait(file, sk_sleep(sk), wait);
/* A TCP-style listening socket becomes readable when the accept queue
* is not empty.
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
mask |= POLLERR;
if (sk->sk_shutdown & RCV_SHUTDOWN)
- mask |= POLLRDHUP;
+ mask |= POLLRDHUP | POLLIN | POLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
/* Is it readable? Reconsider this code with TCP-style support. */
- if (!skb_queue_empty(&sk->sk_receive_queue) ||
- (sk->sk_shutdown & RCV_SHUTDOWN))
+ if (!skb_queue_empty(&sk->sk_receive_queue))
mask |= POLLIN | POLLRDNORM;
/* The association is either gone or not ready. */
int error;
DEFINE_WAIT(wait);
- prepare_to_wait_exclusive(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait_exclusive(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
/* Socket errors? */
error = sock_error(sk);
sctp_lock_sock(sk);
ready:
- finish_wait(sk->sk_sleep, &wait);
+ finish_wait(sk_sleep(sk), &wait);
return 0;
interrupted:
error = sock_intr_errno(*timeo_p);
out:
- finish_wait(sk->sk_sleep, &wait);
+ finish_wait(sk_sleep(sk), &wait);
*err = error;
return error;
}
wake_up_interruptible(&asoc->wait);
if (sctp_writeable(sk)) {
- if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
- wake_up_interruptible(sk->sk_sleep);
+ if (sk_sleep(sk) && waitqueue_active(sk_sleep(sk)))
+ wake_up_interruptible(sk_sleep(sk));
/* Note that we try to include the Async I/O support
* here by modeling from the current TCP/UDP code.
* We have not tested with it yet.
*/
- if (sock->fasync_list &&
+ if (sock->wq->fasync_list &&
!(sk->sk_shutdown & SEND_SHUTDOWN))
sock_wake_async(sock,
SOCK_WAKE_SPACE, POLL_OUT);
void sctp_data_ready(struct sock *sk, int len)
{
- read_lock_bh(&sk->sk_callback_lock);
- if (sk_has_sleeper(sk))
- wake_up_interruptible_sync_poll(sk->sk_sleep, POLLIN |
+ struct socket_wq *wq;
+
+ rcu_read_lock();
+ wq = rcu_dereference(sk->sk_wq);
+ if (wq_has_sleeper(wq))
+ wake_up_interruptible_sync_poll(&wq->wait, POLLIN |
POLLRDNORM | POLLRDBAND);
sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
- read_unlock_bh(&sk->sk_callback_lock);
+ rcu_read_unlock();
}
/* If socket sndbuf has changed, wake up all per association waiters. */
for (;;) {
- prepare_to_wait_exclusive(sk->sk_sleep, &wait,
+ prepare_to_wait_exclusive(sk_sleep(sk), &wait,
TASK_INTERRUPTIBLE);
if (list_empty(&ep->asocs)) {
break;
}
- finish_wait(sk->sk_sleep, &wait);
+ finish_wait(sk_sleep(sk), &wait);
return err;
}
DEFINE_WAIT(wait);
do {
- prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
if (list_empty(&sctp_sk(sk)->ep->asocs))
break;
sctp_release_sock(sk);
sctp_lock_sock(sk);
} while (!signal_pending(current) && timeout);
- finish_wait(sk->sk_sleep, &wait);
+ finish_wait(sk_sleep(sk), &wait);
}
static void sctp_skb_set_owner_r_frag(struct sk_buff *skb, struct sock *sk)
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff