#include <linux/init.h>
#include <linux/wait.h>
#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
#include <linux/net.h>
#include <linux/mutex.h>
#include <linux/kthread.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <asm/uaccess.h>
static int disable_cfc = 0;
static int channel_mtu = -1;
static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
+static int l2cap_ertm = 0;
static struct task_struct *rfcomm_thread;
auth_type);
}
-static void rfcomm_session_timeout(unsigned long arg)
-{
- struct rfcomm_session *s = (void *) arg;
-
- BT_DBG("session %p state %ld", s, s->state);
-
- set_bit(RFCOMM_TIMED_OUT, &s->flags);
- rfcomm_session_put(s);
- rfcomm_schedule(RFCOMM_SCHED_TIMEO);
-}
-
-static void rfcomm_session_set_timer(struct rfcomm_session *s, long timeout)
-{
- BT_DBG("session %p state %ld timeout %ld", s, s->state, timeout);
-
- if (!mod_timer(&s->timer, jiffies + timeout))
- rfcomm_session_hold(s);
-}
-
-static void rfcomm_session_clear_timer(struct rfcomm_session *s)
-{
- BT_DBG("session %p state %ld", s, s->state);
-
- if (timer_pending(&s->timer) && del_timer(&s->timer))
- rfcomm_session_put(s);
-}
-
/* ---- RFCOMM DLCs ---- */
static void rfcomm_dlc_timeout(unsigned long arg)
{
rfcomm_session_hold(s);
- rfcomm_session_clear_timer(s);
rfcomm_dlc_hold(d);
list_add(&d->list, &s->dlcs);
d->session = s;
d->session = NULL;
rfcomm_dlc_put(d);
- if (list_empty(&s->dlcs))
- rfcomm_session_set_timer(s, RFCOMM_IDLE_TIMEOUT);
-
rfcomm_session_put(s);
}
switch (d->state) {
case BT_CONNECT:
- case BT_CONFIG:
if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
set_bit(RFCOMM_AUTH_REJECT, &d->flags);
rfcomm_schedule(RFCOMM_SCHED_AUTH);
break;
case BT_OPEN:
- case BT_CONNECT2:
if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
set_bit(RFCOMM_AUTH_REJECT, &d->flags);
rfcomm_schedule(RFCOMM_SCHED_AUTH);
BT_DBG("session %p sock %p", s, sock);
- setup_timer(&s->timer, rfcomm_session_timeout, (unsigned long) s);
-
INIT_LIST_HEAD(&s->dlcs);
s->state = state;
s->sock = sock;
if (state == BT_CONNECTED)
rfcomm_send_disc(s, 0);
- rfcomm_session_clear_timer(s);
sock_release(s->sock);
kfree(s);
__rfcomm_dlc_close(d, err);
}
- rfcomm_session_clear_timer(s);
rfcomm_session_put(s);
}
sk = sock->sk;
lock_sock(sk);
l2cap_pi(sk)->imtu = l2cap_mtu;
+ if (l2cap_ertm)
+ l2cap_pi(sk)->mode = L2CAP_MODE_ERTM;
release_sock(sk);
s = rfcomm_session_add(sock, BT_BOUND);
break;
case BT_DISCONN:
- rfcomm_session_put(s);
+ /* When socket is closed and we are not RFCOMM
+ * initiator rfcomm_process_rx already calls
+ * rfcomm_session_put() */
+ if (s->sock->sk->sk_state != BT_CLOSED)
+ rfcomm_session_put(s);
break;
}
}
rfcomm_send_ua(d->session, d->dlci);
- rfcomm_dlc_clear_timer(d);
-
rfcomm_dlc_lock(d);
d->state = BT_CONNECTED;
d->state_change(d, 0);
if (d->defer_setup) {
set_bit(RFCOMM_DEFER_SETUP, &d->flags);
rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-
- rfcomm_dlc_lock(d);
- d->state = BT_CONNECT2;
- d->state_change(d, 0);
- rfcomm_dlc_unlock(d);
} else
rfcomm_dlc_accept(d);
} else {
if (d->defer_setup) {
set_bit(RFCOMM_DEFER_SETUP, &d->flags);
rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
-
- rfcomm_dlc_lock(d);
- d->state = BT_CONNECT2;
- d->state_change(d, 0);
- rfcomm_dlc_unlock(d);
} else
rfcomm_dlc_accept(d);
}
struct rfcomm_session *s;
s = list_entry(p, struct rfcomm_session, list);
- if (test_and_clear_bit(RFCOMM_TIMED_OUT, &s->flags)) {
- s->state = BT_DISCONN;
- rfcomm_send_disc(s, 0);
- continue;
- }
-
if (s->state == BT_LISTEN) {
rfcomm_accept_connection(s);
continue;
.security_cfm = rfcomm_security_cfm
};
-static ssize_t rfcomm_dlc_sysfs_show(struct class *dev, char *buf)
+static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
{
struct rfcomm_session *s;
struct list_head *pp, *p;
- char *str = buf;
rfcomm_lock();
struct sock *sk = s->sock->sk;
struct rfcomm_dlc *d = list_entry(pp, struct rfcomm_dlc, list);
- str += sprintf(str, "%s %s %ld %d %d %d %d\n",
- batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst),
- d->state, d->dlci, d->mtu, d->rx_credits, d->tx_credits);
+ seq_printf(f, "%s %s %ld %d %d %d %d\n",
+ batostr(&bt_sk(sk)->src),
+ batostr(&bt_sk(sk)->dst),
+ d->state, d->dlci, d->mtu,
+ d->rx_credits, d->tx_credits);
}
}
rfcomm_unlock();
- return (str - buf);
+ return 0;
}
-static CLASS_ATTR(rfcomm_dlc, S_IRUGO, rfcomm_dlc_sysfs_show, NULL);
+static int rfcomm_dlc_debugfs_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, rfcomm_dlc_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations rfcomm_dlc_debugfs_fops = {
+ .open = rfcomm_dlc_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct dentry *rfcomm_dlc_debugfs;
/* ---- Initialization ---- */
static int __init rfcomm_init(void)
goto unregister;
}
- if (class_create_file(bt_class, &class_attr_rfcomm_dlc) < 0)
- BT_ERR("Failed to create RFCOMM info file");
+ if (bt_debugfs) {
+ rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444,
+ bt_debugfs, NULL, &rfcomm_dlc_debugfs_fops);
+ if (!rfcomm_dlc_debugfs)
+ BT_ERR("Failed to create RFCOMM debug file");
+ }
err = rfcomm_init_ttys();
if (err < 0)
static void __exit rfcomm_exit(void)
{
- class_remove_file(bt_class, &class_attr_rfcomm_dlc);
+ debugfs_remove(rfcomm_dlc_debugfs);
hci_unregister_cb(&rfcomm_cb);
module_param(l2cap_mtu, uint, 0644);
MODULE_PARM_DESC(l2cap_mtu, "Default MTU for the L2CAP connection");
+module_param(l2cap_ertm, bool, 0644);
+MODULE_PARM_DESC(l2cap_ertm, "Use L2CAP ERTM mode for connection");
+
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth RFCOMM ver " VERSION);
MODULE_VERSION(VERSION);
projects / firefly-linux-kernel-4.4.55.git / blobdiff