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[Bluetooth] Add timestamp support to L2CAP, RFCOMM and SCO

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Enable the common timestamp functionality that the network subsystem
provides for L2CAP, RFCOMM and SCO sockets. It is possible to either
use SO_TIMESTAMP or the IOCTLs to retrieve the timestamp of the
current packet.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann 2008-07-14 20:13:50 +02:00
parent 40be492fe4
commit 3241ad820d
5 changed files with 42 additions and 6 deletions
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1
include/net/bluetooth/bluetooth.h
View File

@ -121,6 +121,7 @@ void bt_sock_link(struct bt_sock_list *l, struct sock *s);
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags);
uint bt_sock_poll(struct file * file, struct socket *sock, poll_table *wait);
int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
void bt_accept_enqueue(struct sock *parent, struct sock *sk);

28
net/bluetooth/af_bluetooth.c
View File

@ -36,6 +36,7 @@
#include <linux/init.h>
#include <linux/poll.h>
#include <net/sock.h>
#include <asm/ioctls.h>
#if defined(CONFIG_KMOD)
#include <linux/kmod.h>
@ -266,6 +267,8 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (err == 0)
sock_recv_timestamp(msg, sk, skb);
skb_free_datagram(sk, skb);
@ -329,6 +332,31 @@ unsigned int bt_sock_poll(struct file * file, struct socket *sock, poll_table *w
}
EXPORT_SYMBOL(bt_sock_poll);
int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
int err;
BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
switch (cmd) {
case SIOCGSTAMP:
err = sock_get_timestamp(sk, (struct timeval __user *) arg);
break;
case SIOCGSTAMPNS:
err = sock_get_timestampns(sk, (struct timespec __user *) arg);
break;
default:
err = -ENOIOCTLCMD;
break;
}
return err;
}
EXPORT_SYMBOL(bt_sock_ioctl);
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
{
DECLARE_WAITQUEUE(wait, current);

2
net/bluetooth/l2cap.c
View File

@ -2388,9 +2388,9 @@ static const struct proto_ops l2cap_sock_ops = {
.sendmsg = l2cap_sock_sendmsg,
.recvmsg = bt_sock_recvmsg,
.poll = bt_sock_poll,
.ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
.ioctl = sock_no_ioctl,
.shutdown = l2cap_sock_shutdown,
.setsockopt = l2cap_sock_setsockopt,
.getsockopt = l2cap_sock_getsockopt

15
net/bluetooth/rfcomm/sock.c
View File

@ -690,6 +690,8 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
copied += chunk;
size -= chunk;
sock_recv_timestamp(msg, sk, skb);
if (!(flags & MSG_PEEK)) {
atomic_sub(chunk, &sk->sk_rmem_alloc);
@ -795,15 +797,20 @@ static int rfcomm_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned lon
struct sock *sk = sock->sk;
int err;
lock_sock(sk);
BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
err = bt_sock_ioctl(sock, cmd, arg);
if (err == -ENOIOCTLCMD) {
#ifdef CONFIG_BT_RFCOMM_TTY
err = rfcomm_dev_ioctl(sk, cmd, (void __user *)arg);
lock_sock(sk);
err = rfcomm_dev_ioctl(sk, cmd, (void __user *) arg);
release_sock(sk);
#else
err = -EOPNOTSUPP;
err = -EOPNOTSUPP;
#endif
}
release_sock(sk);
return err;
}

2
net/bluetooth/sco.c
View File

@ -921,7 +921,7 @@ static const struct proto_ops sco_sock_ops = {
.sendmsg = sco_sock_sendmsg,
.recvmsg = bt_sock_recvmsg,
.poll = bt_sock_poll,
.ioctl = sock_no_ioctl,
.ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
.shutdown = sock_no_shutdown,