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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6

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This commit is contained in:
David S. Miller 2010-10-07 00:59:39 -07:00
commit fb3dbece26
3 changed files with 51 additions and 33 deletions
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18
include/net/bluetooth/bluetooth.h
View File

@ -161,12 +161,30 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, unsigned long l
{
struct sk_buff *skb;
release_sock(sk);
if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
skb_reserve(skb, BT_SKB_RESERVE);
bt_cb(skb)->incoming = 0;
}
lock_sock(sk);
if (!skb && *err)
return NULL;
*err = sock_error(sk);
if (*err)
goto out;
if (sk->sk_shutdown) {
*err = -ECONNRESET;
goto out;
}
return skb;
out:
kfree_skb(skb);
return NULL;
}
int bt_err(__u16 code);

62
net/bluetooth/l2cap.c
View File

@ -1441,33 +1441,23 @@ static inline void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
static void l2cap_streaming_send(struct sock *sk)
{
struct sk_buff *skb, *tx_skb;
struct sk_buff *skb;
struct l2cap_pinfo *pi = l2cap_pi(sk);
u16 control, fcs;
while ((skb = sk->sk_send_head)) {
tx_skb = skb_clone(skb, GFP_ATOMIC);
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
while ((skb = skb_dequeue(TX_QUEUE(sk)))) {
control = get_unaligned_le16(skb->data + L2CAP_HDR_SIZE);
control |= pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT;
put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
put_unaligned_le16(control, skb->data + L2CAP_HDR_SIZE);
if (pi->fcs == L2CAP_FCS_CRC16) {
fcs = crc16(0, (u8 *)tx_skb->data, tx_skb->len - 2);
put_unaligned_le16(fcs, tx_skb->data + tx_skb->len - 2);
fcs = crc16(0, (u8 *)skb->data, skb->len - 2);
put_unaligned_le16(fcs, skb->data + skb->len - 2);
}
l2cap_do_send(sk, tx_skb);
l2cap_do_send(sk, skb);
pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
if (skb_queue_is_last(TX_QUEUE(sk), skb))
sk->sk_send_head = NULL;
else
sk->sk_send_head = skb_queue_next(TX_QUEUE(sk), skb);
skb = skb_dequeue(TX_QUEUE(sk));
kfree_skb(skb);
}
}
@ -1960,6 +1950,11 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
switch (optname) {
case L2CAP_OPTIONS:
if (sk->sk_state == BT_CONNECTED) {
err = -EINVAL;
break;
}
opts.imtu = l2cap_pi(sk)->imtu;
opts.omtu = l2cap_pi(sk)->omtu;
opts.flush_to = l2cap_pi(sk)->flush_to;
@ -2771,10 +2766,10 @@ static int l2cap_parse_conf_rsp(struct sock *sk, void *rsp, int len, void *data,
case L2CAP_CONF_MTU:
if (val < L2CAP_DEFAULT_MIN_MTU) {
*result = L2CAP_CONF_UNACCEPT;
pi->omtu = L2CAP_DEFAULT_MIN_MTU;
pi->imtu = L2CAP_DEFAULT_MIN_MTU;
} else
pi->omtu = val;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->omtu);
pi->imtu = val;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
break;
case L2CAP_CONF_FLUSH_TO:
@ -3071,6 +3066,17 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
return 0;
}
static inline void set_default_fcs(struct l2cap_pinfo *pi)
{
/* FCS is enabled only in ERTM or streaming mode, if one or both
* sides request it.
*/
if (pi->mode != L2CAP_MODE_ERTM && pi->mode != L2CAP_MODE_STREAMING)
pi->fcs = L2CAP_FCS_NONE;
else if (!(pi->conf_state & L2CAP_CONF_NO_FCS_RECV))
pi->fcs = L2CAP_FCS_CRC16;
}
static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data)
{
struct l2cap_conf_req *req = (struct l2cap_conf_req *) data;
@ -3088,14 +3094,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if (!sk)
return -ENOENT;
if (sk->sk_state != BT_CONFIG) {
struct l2cap_cmd_rej rej;
rej.reason = cpu_to_le16(0x0002);
l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
sizeof(rej), &rej);
if (sk->sk_state == BT_DISCONN)
goto unlock;
}
/* Reject if config buffer is too small. */
len = cmd_len - sizeof(*req);
@ -3135,9 +3135,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
goto unlock;
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_INPUT_DONE) {
if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_NO_FCS_RECV) ||
l2cap_pi(sk)->fcs != L2CAP_FCS_NONE)
l2cap_pi(sk)->fcs = L2CAP_FCS_CRC16;
set_default_fcs(l2cap_pi(sk));
sk->sk_state = BT_CONNECTED;
@ -3225,9 +3223,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
l2cap_pi(sk)->conf_state |= L2CAP_CONF_INPUT_DONE;
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE) {
if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_NO_FCS_RECV) ||
l2cap_pi(sk)->fcs != L2CAP_FCS_NONE)
l2cap_pi(sk)->fcs = L2CAP_FCS_CRC16;
set_default_fcs(l2cap_pi(sk));
sk->sk_state = BT_CONNECTED;
l2cap_pi(sk)->next_tx_seq = 0;

4
net/bluetooth/rfcomm/sock.c
View File

@ -82,11 +82,14 @@ static void rfcomm_sk_data_ready(struct rfcomm_dlc *d, struct sk_buff *skb)
static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
{
struct sock *sk = d->owner, *parent;
unsigned long flags;
if (!sk)
return;
BT_DBG("dlc %p state %ld err %d", d, d->state, err);
local_irq_save(flags);
bh_lock_sock(sk);
if (err)
@ -108,6 +111,7 @@ static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
}
bh_unlock_sock(sk);
local_irq_restore(flags);
if (parent && sock_flag(sk, SOCK_ZAPPED)) {
/* We have to drop DLC lock here, otherwise