net/irda: push BKL into proto_ops
The irda driver uses the BKL implicitly in its protocol operations. Replace the wrapped proto_ops with explicit lock_kernel() calls makes the usage more obvious and shrinks the size of the object code. The calls t lock_kernel() should eventually all be replaced by other serialization methods, which requires finding out The calls t lock_kernel() should eventually all be replaced by other serialization methods, which requires finding out which data actually needs protection. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>wifi-calibration
Arnd Bergmann
David S. Miller
parent
83927ba069
commit
58a9d73202
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@ -714,11 +714,14 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
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struct sockaddr_irda saddr;
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struct sock *sk = sock->sk;
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struct irda_sock *self = irda_sk(sk);
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int err;
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lock_kernel();
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memset(&saddr, 0, sizeof(saddr));
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if (peer) {
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err = -ENOTCONN;
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if (sk->sk_state != TCP_ESTABLISHED)
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return -ENOTCONN;
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goto out;
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saddr.sir_family = AF_IRDA;
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saddr.sir_lsap_sel = self->dtsap_sel;
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@ -735,8 +738,10 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
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/* uaddr_len come to us uninitialised */
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*uaddr_len = sizeof (struct sockaddr_irda);
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memcpy(uaddr, &saddr, *uaddr_len);
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return 0;
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err = 0;
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out:
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unlock_kernel();
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return err;
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}
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/*
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@ -748,21 +753,25 @@ static int irda_getname(struct socket *sock, struct sockaddr *uaddr,
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static int irda_listen(struct socket *sock, int backlog)
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{
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struct sock *sk = sock->sk;
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int err = -EOPNOTSUPP;
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IRDA_DEBUG(2, "%s()\n", __func__);
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lock_kernel();
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if ((sk->sk_type != SOCK_STREAM) && (sk->sk_type != SOCK_SEQPACKET) &&
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(sk->sk_type != SOCK_DGRAM))
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return -EOPNOTSUPP;
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goto out;
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if (sk->sk_state != TCP_LISTEN) {
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sk->sk_max_ack_backlog = backlog;
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sk->sk_state = TCP_LISTEN;
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return 0;
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err = 0;
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}
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out:
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unlock_kernel();
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return -EOPNOTSUPP;
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return err;
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}
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/*
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@ -783,36 +792,40 @@ static int irda_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
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if (addr_len != sizeof(struct sockaddr_irda))
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return -EINVAL;
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lock_kernel();
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#ifdef CONFIG_IRDA_ULTRA
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/* Special care for Ultra sockets */
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if ((sk->sk_type == SOCK_DGRAM) &&
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(sk->sk_protocol == IRDAPROTO_ULTRA)) {
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self->pid = addr->sir_lsap_sel;
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err = -EOPNOTSUPP;
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if (self->pid & 0x80) {
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IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__);
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return -EOPNOTSUPP;
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goto out;
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}
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err = irda_open_lsap(self, self->pid);
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if (err < 0)
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return err;
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goto out;
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/* Pretend we are connected */
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sock->state = SS_CONNECTED;
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sk->sk_state = TCP_ESTABLISHED;
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err = 0;
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return 0;
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goto out;
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}
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#endif /* CONFIG_IRDA_ULTRA */
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self->ias_obj = irias_new_object(addr->sir_name, jiffies);
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err = -ENOMEM;
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if (self->ias_obj == NULL)
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return -ENOMEM;
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goto out;
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err = irda_open_tsap(self, addr->sir_lsap_sel, addr->sir_name);
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if (err < 0) {
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kfree(self->ias_obj->name);
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kfree(self->ias_obj);
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return err;
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goto out;
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}
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/* Register with LM-IAS */
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@ -820,7 +833,10 @@ static int irda_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
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self->stsap_sel, IAS_KERNEL_ATTR);
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irias_insert_object(self->ias_obj);
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return 0;
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err = 0;
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out:
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unlock_kernel();
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return err;
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}
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/*
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@ -839,22 +855,26 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
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IRDA_DEBUG(2, "%s()\n", __func__);
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lock_kernel();
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err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0);
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if (err)
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return err;
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goto out;
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err = -EINVAL;
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if (sock->state != SS_UNCONNECTED)
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return -EINVAL;
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goto out;
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if ((sk = sock->sk) == NULL)
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return -EINVAL;
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goto out;
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err = -EOPNOTSUPP;
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if ((sk->sk_type != SOCK_STREAM) && (sk->sk_type != SOCK_SEQPACKET) &&
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(sk->sk_type != SOCK_DGRAM))
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return -EOPNOTSUPP;
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goto out;
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err = -EINVAL;
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if (sk->sk_state != TCP_LISTEN)
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return -EINVAL;
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goto out;
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/*
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* The read queue this time is holding sockets ready to use
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@ -875,18 +895,20 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
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break;
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/* Non blocking operation */
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err = -EWOULDBLOCK;
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if (flags & O_NONBLOCK)
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return -EWOULDBLOCK;
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goto out;
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err = wait_event_interruptible(*(sk->sk_sleep),
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skb_peek(&sk->sk_receive_queue));
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if (err)
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return err;
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goto out;
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}
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newsk = newsock->sk;
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err = -EIO;
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if (newsk == NULL)
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return -EIO;
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goto out;
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newsk->sk_state = TCP_ESTABLISHED;
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@ -894,10 +916,11 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
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/* Now attach up the new socket */
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new->tsap = irttp_dup(self->tsap, new);
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err = -EPERM; /* value does not seem to make sense. -arnd */
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if (!new->tsap) {
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IRDA_DEBUG(0, "%s(), dup failed!\n", __func__);
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kfree_skb(skb);
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return -1;
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goto out;
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}
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new->stsap_sel = new->tsap->stsap_sel;
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@ -921,8 +944,10 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
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newsock->state = SS_CONNECTED;
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irda_connect_response(new);
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return 0;
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err = 0;
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out:
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unlock_kernel();
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return err;
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}
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/*
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@ -955,28 +980,34 @@ static int irda_connect(struct socket *sock, struct sockaddr *uaddr,
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IRDA_DEBUG(2, "%s(%p)\n", __func__, self);
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lock_kernel();
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/* Don't allow connect for Ultra sockets */
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err = -ESOCKTNOSUPPORT;
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if ((sk->sk_type == SOCK_DGRAM) && (sk->sk_protocol == IRDAPROTO_ULTRA))
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return -ESOCKTNOSUPPORT;
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goto out;
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if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) {
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sock->state = SS_CONNECTED;
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return 0; /* Connect completed during a ERESTARTSYS event */
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err = 0;
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goto out; /* Connect completed during a ERESTARTSYS event */
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}
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if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) {
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sock->state = SS_UNCONNECTED;
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return -ECONNREFUSED;
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err = -ECONNREFUSED;
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goto out;
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}
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err = -EISCONN; /* No reconnect on a seqpacket socket */
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if (sk->sk_state == TCP_ESTABLISHED)
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return -EISCONN; /* No reconnect on a seqpacket socket */
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goto out;
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sk->sk_state = TCP_CLOSE;
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sock->state = SS_UNCONNECTED;
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err = -EINVAL;
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if (addr_len != sizeof(struct sockaddr_irda))
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return -EINVAL;
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goto out;
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/* Check if user supplied any destination device address */
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if ((!addr->sir_addr) || (addr->sir_addr == DEV_ADDR_ANY)) {
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@ -984,7 +1015,7 @@ static int irda_connect(struct socket *sock, struct sockaddr *uaddr,
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err = irda_discover_daddr_and_lsap_sel(self, addr->sir_name);
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if (err) {
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IRDA_DEBUG(0, "%s(), auto-connect failed!\n", __func__);
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return err;
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goto out;
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}
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} else {
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/* Use the one provided by the user */
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@ -1000,7 +1031,7 @@ static int irda_connect(struct socket *sock, struct sockaddr *uaddr,
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err = irda_find_lsap_sel(self, addr->sir_name);
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if (err) {
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IRDA_DEBUG(0, "%s(), connect failed!\n", __func__);
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return err;
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goto out;
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}
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} else {
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/* Directly connect to the remote LSAP
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@ -1025,29 +1056,35 @@ static int irda_connect(struct socket *sock, struct sockaddr *uaddr,
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self->max_sdu_size_rx, NULL);
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if (err) {
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IRDA_DEBUG(0, "%s(), connect failed!\n", __func__);
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return err;
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goto out;
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}
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/* Now the loop */
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err = -EINPROGRESS;
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if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK))
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return -EINPROGRESS;
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goto out;
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err = -ERESTARTSYS;
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if (wait_event_interruptible(*(sk->sk_sleep),
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(sk->sk_state != TCP_SYN_SENT)))
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return -ERESTARTSYS;
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goto out;
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if (sk->sk_state != TCP_ESTABLISHED) {
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sock->state = SS_UNCONNECTED;
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err = sock_error(sk);
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return err? err : -ECONNRESET;
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if (!err)
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err = -ECONNRESET;
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goto out;
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}
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sock->state = SS_CONNECTED;
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/* At this point, IrLMP has assigned our source address */
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self->saddr = irttp_get_saddr(self->tsap);
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return 0;
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err = 0;
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out:
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unlock_kernel();
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return err;
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}
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static struct proto irda_proto = {
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@ -1193,6 +1230,7 @@ static int irda_release(struct socket *sock)
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if (sk == NULL)
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return 0;
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lock_kernel();
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lock_sock(sk);
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sk->sk_state = TCP_CLOSE;
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sk->sk_shutdown |= SEND_SHUTDOWN;
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@ -1211,6 +1249,7 @@ static int irda_release(struct socket *sock)
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/* Destroy networking socket if we are the last reference on it,
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* i.e. if(sk->sk_refcnt == 0) -> sk_free(sk) */
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sock_put(sk);
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unlock_kernel();
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/* Notes on socket locking and deallocation... - Jean II
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* In theory we should put pairs of sock_hold() / sock_put() to
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@ -1258,28 +1297,37 @@ static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
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IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
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lock_kernel();
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/* Note : socket.c set MSG_EOR on SEQPACKET sockets */
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if (msg->msg_flags & ~(MSG_DONTWAIT | MSG_EOR | MSG_CMSG_COMPAT |
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MSG_NOSIGNAL))
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return -EINVAL;
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MSG_NOSIGNAL)) {
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err = -EINVAL;
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goto out;
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}
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if (sk->sk_shutdown & SEND_SHUTDOWN)
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goto out_err;
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if (sk->sk_state != TCP_ESTABLISHED)
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return -ENOTCONN;
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if (sk->sk_state != TCP_ESTABLISHED) {
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err = -ENOTCONN;
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goto out;
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}
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self = irda_sk(sk);
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/* Check if IrTTP is wants us to slow down */
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if (wait_event_interruptible(*(sk->sk_sleep),
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(self->tx_flow != FLOW_STOP || sk->sk_state != TCP_ESTABLISHED)))
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return -ERESTARTSYS;
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(self->tx_flow != FLOW_STOP || sk->sk_state != TCP_ESTABLISHED))) {
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err = -ERESTARTSYS;
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goto out;
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}
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/* Check if we are still connected */
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if (sk->sk_state != TCP_ESTABLISHED)
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return -ENOTCONN;
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if (sk->sk_state != TCP_ESTABLISHED) {
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err = -ENOTCONN;
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goto out;
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}
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/* Check that we don't send out too big frames */
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if (len > self->max_data_size) {
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@ -1311,11 +1359,16 @@ static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
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IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
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goto out_err;
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}
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unlock_kernel();
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/* Tell client how much data we actually sent */
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return len;
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out_err:
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return sk_stream_error(sk, msg->msg_flags, err);
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out_err:
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err = sk_stream_error(sk, msg->msg_flags, err);
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out:
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unlock_kernel();
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return err;
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}
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@ -1336,13 +1389,14 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock,
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IRDA_DEBUG(4, "%s()\n", __func__);
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lock_kernel();
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if ((err = sock_error(sk)) < 0)
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return err;
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goto out;
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skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
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flags & MSG_DONTWAIT, &err);
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if (!skb)
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return err;
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goto out;
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skb_reset_transport_header(skb);
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copied = skb->len;
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@ -1370,8 +1424,12 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock,
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irttp_flow_request(self->tsap, FLOW_START);
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}
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}
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unlock_kernel();
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return copied;
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out:
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unlock_kernel();
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return err;
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}
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/*
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@ -1389,15 +1447,19 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
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IRDA_DEBUG(3, "%s()\n", __func__);
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lock_kernel();
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if ((err = sock_error(sk)) < 0)
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return err;
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goto out;
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err = -EINVAL;
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if (sock->flags & __SO_ACCEPTCON)
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return(-EINVAL);
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goto out;
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err =-EOPNOTSUPP;
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if (flags & MSG_OOB)
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return -EOPNOTSUPP;
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goto out;
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err = 0;
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target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
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timeo = sock_rcvtimeo(sk, noblock);
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@ -1409,7 +1471,7 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
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if (skb == NULL) {
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DEFINE_WAIT(wait);
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int ret = 0;
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err = 0;
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if (copied >= target)
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break;
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@ -1419,25 +1481,25 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
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/*
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* POSIX 1003.1g mandates this order.
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*/
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ret = sock_error(sk);
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if (ret)
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err = sock_error(sk);
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if (err)
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;
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else if (sk->sk_shutdown & RCV_SHUTDOWN)
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;
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else if (noblock)
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ret = -EAGAIN;
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err = -EAGAIN;
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else if (signal_pending(current))
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ret = sock_intr_errno(timeo);
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err = sock_intr_errno(timeo);
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else if (sk->sk_state != TCP_ESTABLISHED)
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ret = -ENOTCONN;
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err = -ENOTCONN;
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else if (skb_peek(&sk->sk_receive_queue) == NULL)
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/* Wait process until data arrives */
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schedule();
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finish_wait(sk->sk_sleep, &wait);
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if (ret)
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return ret;
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if (err)
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goto out;
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if (sk->sk_shutdown & RCV_SHUTDOWN)
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break;
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|
||||
|
|
@ -1490,7 +1552,9 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
|
|||
}
|
||||
}
|
||||
|
||||
return copied;
|
||||
out:
|
||||
unlock_kernel();
|
||||
return err ? : copied;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1508,18 +1572,23 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
|
|||
struct sk_buff *skb;
|
||||
int err;
|
||||
|
||||
lock_kernel();
|
||||
|
||||
IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
|
||||
|
||||
err = -EINVAL;
|
||||
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT))
|
||||
return -EINVAL;
|
||||
goto out;
|
||||
|
||||
if (sk->sk_shutdown & SEND_SHUTDOWN) {
|
||||
send_sig(SIGPIPE, current, 0);
|
||||
return -EPIPE;
|
||||
err = -EPIPE;
|
||||
goto out;
|
||||
}
|
||||
|
||||
err = -ENOTCONN;
|
||||
if (sk->sk_state != TCP_ESTABLISHED)
|
||||
return -ENOTCONN;
|
||||
goto out;
|
||||
|
||||
self = irda_sk(sk);
|
||||
|
||||
|
|
@ -1536,8 +1605,9 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
|
|||
|
||||
skb = sock_alloc_send_skb(sk, len + self->max_header_size,
|
||||
msg->msg_flags & MSG_DONTWAIT, &err);
|
||||
err = -ENOBUFS;
|
||||
if (!skb)
|
||||
return -ENOBUFS;
|
||||
goto out;
|
||||
|
||||
skb_reserve(skb, self->max_header_size);
|
||||
skb_reset_transport_header(skb);
|
||||
|
|
@ -1547,7 +1617,7 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
|
|||
err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
|
||||
if (err) {
|
||||
kfree_skb(skb);
|
||||
return err;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1557,9 +1627,13 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
|
|||
err = irttp_udata_request(self->tsap, skb);
|
||||
if (err) {
|
||||
IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
|
||||
return err;
|
||||
goto out;
|
||||
}
|
||||
unlock_kernel();
|
||||
return len;
|
||||
out:
|
||||
unlock_kernel();
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1581,12 +1655,15 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
|
|||
|
||||
IRDA_DEBUG(4, "%s(), len=%zd\n", __func__, len);
|
||||
|
||||
lock_kernel();
|
||||
err = -EINVAL;
|
||||
if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT))
|
||||
return -EINVAL;
|
||||
goto out;
|
||||
|
||||
err = -EPIPE;
|
||||
if (sk->sk_shutdown & SEND_SHUTDOWN) {
|
||||
send_sig(SIGPIPE, current, 0);
|
||||
return -EPIPE;
|
||||
goto out;
|
||||
}
|
||||
|
||||
self = irda_sk(sk);
|
||||
|
|
@ -1594,16 +1671,18 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
|
|||
/* Check if an address was specified with sendto. Jean II */
|
||||
if (msg->msg_name) {
|
||||
struct sockaddr_irda *addr = (struct sockaddr_irda *) msg->msg_name;
|
||||
err = -EINVAL;
|
||||
/* Check address, extract pid. Jean II */
|
||||
if (msg->msg_namelen < sizeof(*addr))
|
||||
return -EINVAL;
|
||||
goto out;
|
||||
if (addr->sir_family != AF_IRDA)
|
||||
return -EINVAL;
|
||||
goto out;
|
||||
|
||||
pid = addr->sir_lsap_sel;
|
||||
if (pid & 0x80) {
|
||||
IRDA_DEBUG(0, "%s(), extension in PID not supp!\n", __func__);
|
||||
return -EOPNOTSUPP;
|
||||
err = -EOPNOTSUPP;
|
||||
goto out;
|
||||
}
|
||||
} else {
|
||||
/* Check that the socket is properly bound to an Ultra
|
||||
|
|
@ -1612,7 +1691,8 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
|
|||
(sk->sk_state != TCP_ESTABLISHED)) {
|
||||
IRDA_DEBUG(0, "%s(), socket not bound to Ultra PID.\n",
|
||||
__func__);
|
||||
return -ENOTCONN;
|
||||
err = -ENOTCONN;
|
||||
goto out;
|
||||
}
|
||||
/* Use PID from socket */
|
||||
bound = 1;
|
||||
|
|
@ -1631,8 +1711,9 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
|
|||
|
||||
skb = sock_alloc_send_skb(sk, len + self->max_header_size,
|
||||
msg->msg_flags & MSG_DONTWAIT, &err);
|
||||
err = -ENOBUFS;
|
||||
if (!skb)
|
||||
return -ENOBUFS;
|
||||
goto out;
|
||||
|
||||
skb_reserve(skb, self->max_header_size);
|
||||
skb_reset_transport_header(skb);
|
||||
|
|
@ -1642,16 +1723,16 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
|
|||
err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
|
||||
if (err) {
|
||||
kfree_skb(skb);
|
||||
return err;
|
||||
goto out;
|
||||
}
|
||||
|
||||
err = irlmp_connless_data_request((bound ? self->lsap : NULL),
|
||||
skb, pid);
|
||||
if (err) {
|
||||
if (err)
|
||||
IRDA_DEBUG(0, "%s(), err=%d\n", __func__, err);
|
||||
return err;
|
||||
}
|
||||
return len;
|
||||
out:
|
||||
unlock_kernel();
|
||||
return err ? : len;
|
||||
}
|
||||
#endif /* CONFIG_IRDA_ULTRA */
|
||||
|
||||
|
|
@ -1665,6 +1746,8 @@ static int irda_shutdown(struct socket *sock, int how)
|
|||
|
||||
IRDA_DEBUG(1, "%s(%p)\n", __func__, self);
|
||||
|
||||
lock_kernel();
|
||||
|
||||
sk->sk_state = TCP_CLOSE;
|
||||
sk->sk_shutdown |= SEND_SHUTDOWN;
|
||||
sk->sk_state_change(sk);
|
||||
|
|
@ -1685,6 +1768,8 @@ static int irda_shutdown(struct socket *sock, int how)
|
|||
self->daddr = DEV_ADDR_ANY; /* Until we get re-connected */
|
||||
self->saddr = 0x0; /* so IrLMP assign us any link */
|
||||
|
||||
unlock_kernel();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -1700,6 +1785,7 @@ static unsigned int irda_poll(struct file * file, struct socket *sock,
|
|||
|
||||
IRDA_DEBUG(4, "%s()\n", __func__);
|
||||
|
||||
lock_kernel();
|
||||
poll_wait(file, sk->sk_sleep, wait);
|
||||
mask = 0;
|
||||
|
||||
|
|
@ -1747,18 +1833,34 @@ static unsigned int irda_poll(struct file * file, struct socket *sock,
|
|||
default:
|
||||
break;
|
||||
}
|
||||
unlock_kernel();
|
||||
return mask;
|
||||
}
|
||||
|
||||
static unsigned int irda_datagram_poll(struct file *file, struct socket *sock,
|
||||
poll_table *wait)
|
||||
{
|
||||
int err;
|
||||
|
||||
lock_kernel();
|
||||
err = datagram_poll(file, sock, wait);
|
||||
unlock_kernel();
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function irda_ioctl (sock, cmd, arg)
|
||||
*/
|
||||
static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
struct sock *sk = sock->sk;
|
||||
int err;
|
||||
|
||||
IRDA_DEBUG(4, "%s(), cmd=%#x\n", __func__, cmd);
|
||||
|
||||
lock_kernel();
|
||||
err = -EINVAL;
|
||||
switch (cmd) {
|
||||
case TIOCOUTQ: {
|
||||
long amount;
|
||||
|
|
@ -1766,9 +1868,8 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
|||
amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
|
||||
if (amount < 0)
|
||||
amount = 0;
|
||||
if (put_user(amount, (unsigned int __user *)arg))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
err = put_user(amount, (unsigned int __user *)arg);
|
||||
break;
|
||||
}
|
||||
|
||||
case TIOCINQ: {
|
||||
|
|
@ -1777,15 +1878,14 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
|||
/* These two are safe on a single CPU system as only user tasks fiddle here */
|
||||
if ((skb = skb_peek(&sk->sk_receive_queue)) != NULL)
|
||||
amount = skb->len;
|
||||
if (put_user(amount, (unsigned int __user *)arg))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
err = put_user(amount, (unsigned int __user *)arg);
|
||||
break;
|
||||
}
|
||||
|
||||
case SIOCGSTAMP:
|
||||
if (sk != NULL)
|
||||
return sock_get_timestamp(sk, (struct timeval __user *)arg);
|
||||
return -EINVAL;
|
||||
err = sock_get_timestamp(sk, (struct timeval __user *)arg);
|
||||
break;
|
||||
|
||||
case SIOCGIFADDR:
|
||||
case SIOCSIFADDR:
|
||||
|
|
@ -1797,14 +1897,14 @@ static int irda_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
|
|||
case SIOCSIFNETMASK:
|
||||
case SIOCGIFMETRIC:
|
||||
case SIOCSIFMETRIC:
|
||||
return -EINVAL;
|
||||
break;
|
||||
default:
|
||||
IRDA_DEBUG(1, "%s(), doing device ioctl!\n", __func__);
|
||||
return -ENOIOCTLCMD;
|
||||
err = -ENOIOCTLCMD;
|
||||
}
|
||||
unlock_kernel();
|
||||
|
||||
/*NOTREACHED*/
|
||||
return 0;
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_COMPAT
|
||||
|
|
@ -1826,7 +1926,7 @@ static int irda_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned lon
|
|||
* Set some options for the socket
|
||||
*
|
||||
*/
|
||||
static int irda_setsockopt(struct socket *sock, int level, int optname,
|
||||
static int __irda_setsockopt(struct socket *sock, int level, int optname,
|
||||
char __user *optval, unsigned int optlen)
|
||||
{
|
||||
struct sock *sk = sock->sk;
|
||||
|
|
@ -2084,6 +2184,18 @@ static int irda_setsockopt(struct socket *sock, int level, int optname,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int irda_setsockopt(struct socket *sock, int level, int optname,
|
||||
char __user *optval, unsigned int optlen)
|
||||
{
|
||||
int err;
|
||||
|
||||
lock_kernel();
|
||||
err = __irda_setsockopt(sock, level, optname, optval, optlen);
|
||||
unlock_kernel();
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Function irda_extract_ias_value(ias_opt, ias_value)
|
||||
*
|
||||
|
|
@ -2136,7 +2248,7 @@ static int irda_extract_ias_value(struct irda_ias_set *ias_opt,
|
|||
/*
|
||||
* Function irda_getsockopt (sock, level, optname, optval, optlen)
|
||||
*/
|
||||
static int irda_getsockopt(struct socket *sock, int level, int optname,
|
||||
static int __irda_getsockopt(struct socket *sock, int level, int optname,
|
||||
char __user *optval, int __user *optlen)
|
||||
{
|
||||
struct sock *sk = sock->sk;
|
||||
|
|
@ -2464,13 +2576,25 @@ bed:
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int irda_getsockopt(struct socket *sock, int level, int optname,
|
||||
char __user *optval, int __user *optlen)
|
||||
{
|
||||
int err;
|
||||
|
||||
lock_kernel();
|
||||
err = __irda_getsockopt(sock, level, optname, optval, optlen);
|
||||
unlock_kernel();
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static const struct net_proto_family irda_family_ops = {
|
||||
.family = PF_IRDA,
|
||||
.create = irda_create,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static const struct proto_ops SOCKOPS_WRAPPED(irda_stream_ops) = {
|
||||
static const struct proto_ops irda_stream_ops = {
|
||||
.family = PF_IRDA,
|
||||
.owner = THIS_MODULE,
|
||||
.release = irda_release,
|
||||
|
|
@ -2494,7 +2618,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_stream_ops) = {
|
|||
.sendpage = sock_no_sendpage,
|
||||
};
|
||||
|
||||
static const struct proto_ops SOCKOPS_WRAPPED(irda_seqpacket_ops) = {
|
||||
static const struct proto_ops irda_seqpacket_ops = {
|
||||
.family = PF_IRDA,
|
||||
.owner = THIS_MODULE,
|
||||
.release = irda_release,
|
||||
|
|
@ -2503,7 +2627,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_seqpacket_ops) = {
|
|||
.socketpair = sock_no_socketpair,
|
||||
.accept = irda_accept,
|
||||
.getname = irda_getname,
|
||||
.poll = datagram_poll,
|
||||
.poll = irda_datagram_poll,
|
||||
.ioctl = irda_ioctl,
|
||||
#ifdef CONFIG_COMPAT
|
||||
.compat_ioctl = irda_compat_ioctl,
|
||||
|
|
@ -2518,7 +2642,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_seqpacket_ops) = {
|
|||
.sendpage = sock_no_sendpage,
|
||||
};
|
||||
|
||||
static const struct proto_ops SOCKOPS_WRAPPED(irda_dgram_ops) = {
|
||||
static const struct proto_ops irda_dgram_ops = {
|
||||
.family = PF_IRDA,
|
||||
.owner = THIS_MODULE,
|
||||
.release = irda_release,
|
||||
|
|
@ -2527,7 +2651,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_dgram_ops) = {
|
|||
.socketpair = sock_no_socketpair,
|
||||
.accept = irda_accept,
|
||||
.getname = irda_getname,
|
||||
.poll = datagram_poll,
|
||||
.poll = irda_datagram_poll,
|
||||
.ioctl = irda_ioctl,
|
||||
#ifdef CONFIG_COMPAT
|
||||
.compat_ioctl = irda_compat_ioctl,
|
||||
|
|
@ -2543,7 +2667,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_dgram_ops) = {
|
|||
};
|
||||
|
||||
#ifdef CONFIG_IRDA_ULTRA
|
||||
static const struct proto_ops SOCKOPS_WRAPPED(irda_ultra_ops) = {
|
||||
static const struct proto_ops irda_ultra_ops = {
|
||||
.family = PF_IRDA,
|
||||
.owner = THIS_MODULE,
|
||||
.release = irda_release,
|
||||
|
|
@ -2552,7 +2676,7 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_ultra_ops) = {
|
|||
.socketpair = sock_no_socketpair,
|
||||
.accept = sock_no_accept,
|
||||
.getname = irda_getname,
|
||||
.poll = datagram_poll,
|
||||
.poll = irda_datagram_poll,
|
||||
.ioctl = irda_ioctl,
|
||||
#ifdef CONFIG_COMPAT
|
||||
.compat_ioctl = irda_compat_ioctl,
|
||||
|
|
@ -2568,13 +2692,6 @@ static const struct proto_ops SOCKOPS_WRAPPED(irda_ultra_ops) = {
|
|||
};
|
||||
#endif /* CONFIG_IRDA_ULTRA */
|
||||
|
||||
SOCKOPS_WRAP(irda_stream, PF_IRDA);
|
||||
SOCKOPS_WRAP(irda_seqpacket, PF_IRDA);
|
||||
SOCKOPS_WRAP(irda_dgram, PF_IRDA);
|
||||
#ifdef CONFIG_IRDA_ULTRA
|
||||
SOCKOPS_WRAP(irda_ultra, PF_IRDA);
|
||||
#endif /* CONFIG_IRDA_ULTRA */
|
||||
|
||||
/*
|
||||
* Function irsock_init (pro)
|
||||
*
|
||||
|
|
|
|||
Loading…
Reference in New Issue