-/*
+/*
RFCOMM implementation for Linux Bluetooth stack (BlueZ).
Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
/*
* RFCOMM sockets.
- *
- * $Id: sock.c,v 1.24 2002/10/03 01:00:34 maxk Exp $
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/skbuff.h>
#include <linux/list.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
+#include <linux/device.h>
#include <net/sock.h>
#include <asm/system.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/rfcomm.h>
-#ifndef CONFIG_BT_RFCOMM_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
-
-static struct proto_ops rfcomm_sock_ops;
+static const struct proto_ops rfcomm_sock_ops;
static struct bt_sock_list rfcomm_sk_list = {
- .lock = RW_LOCK_UNLOCKED
+ .lock = __RW_LOCK_UNLOCKED(rfcomm_sk_list.lock)
};
static void rfcomm_sock_close(struct sock *sk);
struct hlist_node *node;
sk_for_each(sk, node, &rfcomm_sk_list.head) {
- if (rfcomm_pi(sk)->channel == channel &&
+ if (rfcomm_pi(sk)->channel == channel &&
!bacmp(&bt_sk(sk)->src, src))
break;
}
if (parent) {
sk->sk_type = parent->sk_type;
- pi->link_mode = rfcomm_pi(parent)->link_mode;
+ pi->dlc->defer_setup = bt_sk(parent)->defer_setup;
+
+ pi->sec_level = rfcomm_pi(parent)->sec_level;
+ pi->role_switch = rfcomm_pi(parent)->role_switch;
} else {
- pi->link_mode = 0;
+ pi->dlc->defer_setup = 0;
+
+ pi->sec_level = BT_SECURITY_LOW;
+ pi->role_switch = 0;
}
- pi->dlc->link_mode = pi->link_mode;
+ pi->dlc->sec_level = pi->sec_level;
+ pi->dlc->role_switch = pi->role_switch;
}
static struct proto rfcomm_proto = {
.obj_size = sizeof(struct rfcomm_pinfo)
};
-static struct sock *rfcomm_sock_alloc(struct socket *sock, int proto, unsigned int __nocast prio)
+static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
{
struct rfcomm_dlc *d;
struct sock *sk;
- sk = sk_alloc(PF_BLUETOOTH, prio, &rfcomm_proto, 1);
+ sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto);
if (!sk)
return NULL;
sk->sk_destruct = rfcomm_sock_destruct;
sk->sk_sndtimeo = RFCOMM_CONN_TIMEOUT;
- sk->sk_sndbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
- sk->sk_rcvbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
+ sk->sk_sndbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
+ sk->sk_rcvbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
- sk->sk_state = BT_OPEN;
+ sk->sk_state = BT_OPEN;
bt_sock_link(&rfcomm_sk_list, sk);
return sk;
}
-static int rfcomm_sock_create(struct socket *sock, int protocol)
+static int rfcomm_sock_create(struct net *net, struct socket *sock,
+ int protocol, int kern)
{
struct sock *sk;
sock->ops = &rfcomm_sock_ops;
- if (!(sk = rfcomm_sock_alloc(sock, protocol, GFP_KERNEL)))
+ sk = rfcomm_sock_alloc(net, sock, protocol, GFP_ATOMIC);
+ if (!sk)
return -ENOMEM;
rfcomm_sock_init(sk, NULL);
goto done;
}
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ goto done;
+ }
+
write_lock_bh(&rfcomm_sk_list.lock);
if (sa->rc_channel && __rfcomm_get_sock_by_addr(sa->rc_channel, &sa->rc_bdaddr)) {
if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_rc))
return -EINVAL;
- if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
- return -EBADFD;
+ lock_sock(sk);
- if (sk->sk_type != SOCK_STREAM)
- return -EINVAL;
+ if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) {
+ err = -EBADFD;
+ goto done;
+ }
- lock_sock(sk);
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ goto done;
+ }
sk->sk_state = BT_CONNECT;
bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
rfcomm_pi(sk)->channel = sa->rc_channel;
+ d->sec_level = rfcomm_pi(sk)->sec_level;
+ d->role_switch = rfcomm_pi(sk)->role_switch;
+
err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
if (!err)
err = bt_sock_wait_state(sk, BT_CONNECTED,
sock_sndtimeo(sk, flags & O_NONBLOCK));
+done:
release_sock(sk);
return err;
}
goto done;
}
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ goto done;
+ }
+
if (!rfcomm_pi(sk)->channel) {
bdaddr_t *src = &bt_sk(sk)->src;
u8 channel;
goto done;
}
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ goto done;
+ }
+
timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
BT_DBG("sk %p timeo %ld", sk, timeo);
struct sock *sk = sock->sk;
struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
struct sk_buff *skb;
- int err;
int sent = 0;
+ if (test_bit(RFCOMM_DEFER_SETUP, &d->flags))
+ return -ENOTCONN;
+
if (msg->msg_flags & MSG_OOB)
return -EOPNOTSUPP;
while (len) {
size_t size = min_t(size_t, len, d->mtu);
-
+ int err;
+
skb = sock_alloc_send_skb(sk, size + RFCOMM_SKB_RESERVE,
msg->msg_flags & MSG_DONTWAIT, &err);
- if (!skb)
+ if (!skb) {
+ if (sent == 0)
+ sent = err;
break;
+ }
skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE);
err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
if (err) {
kfree_skb(skb);
- sent = err;
+ if (sent == 0)
+ sent = err;
break;
}
err = rfcomm_dlc_send(d, skb);
if (err < 0) {
kfree_skb(skb);
+ if (sent == 0)
+ sent = err;
break;
}
release_sock(sk);
- return sent ? sent : err;
+ return sent;
}
static long rfcomm_sock_data_wait(struct sock *sk, long timeo)
struct msghdr *msg, size_t size, int flags)
{
struct sock *sk = sock->sk;
+ struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
int err = 0;
size_t target, copied = 0;
long timeo;
+ if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+ rfcomm_dlc_accept(d);
+ return 0;
+ }
+
if (flags & MSG_OOB)
return -EOPNOTSUPP;
msg->msg_namelen = 0;
- BT_DBG("sk %p size %d", sk, size);
+ BT_DBG("sk %p size %zu", sk, size);
lock_sock(sk);
copied += chunk;
size -= chunk;
+ sock_recv_ts_and_drops(msg, sk, skb);
+
if (!(flags & MSG_PEEK)) {
atomic_sub(chunk, &sk->sk_rmem_alloc);
return copied ? : err;
}
-static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
+static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
int err = 0;
break;
}
- rfcomm_pi(sk)->link_mode = opt;
+ if (opt & RFCOMM_LM_AUTH)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_LOW;
+ if (opt & RFCOMM_LM_ENCRYPT)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+ if (opt & RFCOMM_LM_SECURE)
+ rfcomm_pi(sk)->sec_level = BT_SECURITY_HIGH;
+
+ rfcomm_pi(sk)->role_switch = (opt & RFCOMM_LM_MASTER);
break;
default:
return err;
}
-static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+{
+ struct sock *sk = sock->sk;
+ struct bt_security sec;
+ int len, err = 0;
+ u32 opt;
+
+ BT_DBG("sk %p", sk);
+
+ if (level == SOL_RFCOMM)
+ return rfcomm_sock_setsockopt_old(sock, optname, optval, optlen);
+
+ if (level != SOL_BLUETOOTH)
+ return -ENOPROTOOPT;
+
+ lock_sock(sk);
+
+ switch (optname) {
+ case BT_SECURITY:
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ break;
+ }
+
+ sec.level = BT_SECURITY_LOW;
+
+ len = min_t(unsigned int, sizeof(sec), optlen);
+ if (copy_from_user((char *) &sec, optval, len)) {
+ err = -EFAULT;
+ break;
+ }
+
+ if (sec.level > BT_SECURITY_HIGH) {
+ err = -EINVAL;
+ break;
+ }
+
+ rfcomm_pi(sk)->sec_level = sec.level;
+ break;
+
+ case BT_DEFER_SETUP:
+ if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+ err = -EINVAL;
+ break;
+ }
+
+ if (get_user(opt, (u32 __user *) optval)) {
+ err = -EFAULT;
+ break;
+ }
+
+ bt_sk(sk)->defer_setup = opt;
+ break;
+
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ release_sock(sk);
+ return err;
+}
+
+static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
struct sock *l2cap_sk;
struct rfcomm_conninfo cinfo;
int len, err = 0;
+ u32 opt;
BT_DBG("sk %p", sk);
switch (optname) {
case RFCOMM_LM:
- if (put_user(rfcomm_pi(sk)->link_mode, (u32 __user *) optval))
+ switch (rfcomm_pi(sk)->sec_level) {
+ case BT_SECURITY_LOW:
+ opt = RFCOMM_LM_AUTH;
+ break;
+ case BT_SECURITY_MEDIUM:
+ opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT;
+ break;
+ case BT_SECURITY_HIGH:
+ opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT |
+ RFCOMM_LM_SECURE;
+ break;
+ default:
+ opt = 0;
+ break;
+ }
+
+ if (rfcomm_pi(sk)->role_switch)
+ opt |= RFCOMM_LM_MASTER;
+
+ if (put_user(opt, (u32 __user *) optval))
err = -EFAULT;
break;
case RFCOMM_CONNINFO:
- if (sk->sk_state != BT_CONNECTED) {
+ if (sk->sk_state != BT_CONNECTED &&
+ !rfcomm_pi(sk)->dlc->defer_setup) {
err = -ENOTCONN;
break;
}
return err;
}
-static int rfcomm_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
- int err;
+ struct bt_security sec;
+ int len, err = 0;
+
+ BT_DBG("sk %p", sk);
+
+ if (level == SOL_RFCOMM)
+ return rfcomm_sock_getsockopt_old(sock, optname, optval, optlen);
+
+ if (level != SOL_BLUETOOTH)
+ return -ENOPROTOOPT;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
lock_sock(sk);
+ switch (optname) {
+ case BT_SECURITY:
+ if (sk->sk_type != SOCK_STREAM) {
+ err = -EINVAL;
+ break;
+ }
+
+ sec.level = rfcomm_pi(sk)->sec_level;
+
+ len = min_t(unsigned int, len, sizeof(sec));
+ if (copy_to_user(optval, (char *) &sec, len))
+ err = -EFAULT;
+
+ break;
+
+ case BT_DEFER_SETUP:
+ if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+ err = -EINVAL;
+ break;
+ }
+
+ if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+ err = -EFAULT;
+
+ break;
+
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ release_sock(sk);
+ return err;
+}
+
+static int rfcomm_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ struct sock *sk __maybe_unused = sock->sk;
+ int err;
+
+ 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;
}
return err;
}
-/* ---- RFCOMM core layer callbacks ----
+/* ---- RFCOMM core layer callbacks ----
*
* called under rfcomm_lock()
*/
/* Check for backlog size */
if (sk_acceptq_is_full(parent)) {
- BT_DBG("backlog full %d", parent->sk_ack_backlog);
+ BT_DBG("backlog full %d", parent->sk_ack_backlog);
goto done;
}
- sk = rfcomm_sock_alloc(NULL, BTPROTO_RFCOMM, GFP_ATOMIC);
+ sk = rfcomm_sock_alloc(sock_net(parent), NULL, BTPROTO_RFCOMM, GFP_ATOMIC);
if (!sk)
goto done;
done:
bh_unlock_sock(parent);
+
+ if (bt_sk(parent)->defer_setup)
+ parent->sk_state_change(parent);
+
return result;
}
-/* ---- Proc fs support ---- */
-#ifdef CONFIG_PROC_FS
-static void *rfcomm_seq_start(struct seq_file *seq, loff_t *pos)
+static ssize_t rfcomm_sock_sysfs_show(struct class *dev, char *buf)
{
struct sock *sk;
struct hlist_node *node;
- loff_t l = *pos;
+ char *str = buf;
read_lock_bh(&rfcomm_sk_list.lock);
- sk_for_each(sk, node, &rfcomm_sk_list.head)
- if (!l--)
- return sk;
- return NULL;
-}
-
-static void *rfcomm_seq_next(struct seq_file *seq, void *e, loff_t *pos)
-{
- struct sock *sk = e;
- (*pos)++;
- return sk_next(sk);
-}
+ sk_for_each(sk, node, &rfcomm_sk_list.head) {
+ str += sprintf(str, "%s %s %d %d\n",
+ batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
+ sk->sk_state, rfcomm_pi(sk)->channel);
+ }
-static void rfcomm_seq_stop(struct seq_file *seq, void *e)
-{
read_unlock_bh(&rfcomm_sk_list.lock);
-}
-static int rfcomm_seq_show(struct seq_file *seq, void *e)
-{
- struct sock *sk = e;
- seq_printf(seq, "%s %s %d %d\n",
- batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
- sk->sk_state, rfcomm_pi(sk)->channel);
- return 0;
+ return (str - buf);
}
-static struct seq_operations rfcomm_seq_ops = {
- .start = rfcomm_seq_start,
- .next = rfcomm_seq_next,
- .stop = rfcomm_seq_stop,
- .show = rfcomm_seq_show
-};
-
-static int rfcomm_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &rfcomm_seq_ops);
-}
-
-static struct file_operations rfcomm_seq_fops = {
- .owner = THIS_MODULE,
- .open = rfcomm_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int __init rfcomm_sock_proc_init(void)
-{
- struct proc_dir_entry *p = create_proc_entry("sock", S_IRUGO, proc_bt_rfcomm);
- if (!p)
- return -ENOMEM;
- p->proc_fops = &rfcomm_seq_fops;
- return 0;
-}
-
-static void __exit rfcomm_sock_proc_cleanup(void)
-{
- remove_proc_entry("sock", proc_bt_rfcomm);
-}
-
-#else /* CONFIG_PROC_FS */
-
-static int __init rfcomm_sock_proc_init(void)
-{
- return 0;
-}
-
-static void __exit rfcomm_sock_proc_cleanup(void)
-{
- return;
-}
-#endif /* CONFIG_PROC_FS */
+static CLASS_ATTR(rfcomm, S_IRUGO, rfcomm_sock_sysfs_show, NULL);
-static struct proto_ops rfcomm_sock_ops = {
+static const struct proto_ops rfcomm_sock_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.release = rfcomm_sock_release,
.mmap = sock_no_mmap
};
-static struct net_proto_family rfcomm_sock_family_ops = {
+static const struct net_proto_family rfcomm_sock_family_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.create = rfcomm_sock_create
};
-int __init rfcomm_init_sockets(void)
+int __init rfcomm_init_sockets(void)
{
int err;
if (err < 0)
goto error;
- rfcomm_sock_proc_init();
+ if (class_create_file(bt_class, &class_attr_rfcomm) < 0)
+ BT_ERR("Failed to create RFCOMM info file");
BT_INFO("RFCOMM socket layer initialized");
return err;
}
-void __exit rfcomm_cleanup_sockets(void)
+void rfcomm_cleanup_sockets(void)
{
- rfcomm_sock_proc_cleanup();
+ class_remove_file(bt_class, &class_attr_rfcomm);
if (bt_sock_unregister(BTPROTO_RFCOMM) < 0)
BT_ERR("RFCOMM socket layer unregistration failed");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff