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Bluetooth: Move ERTM timers to struct l2cap_chan

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This also triggered a change in l2cap_send_disconn_req() parameters.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Gustavo F. Padovan 2011-04-01 00:53:45 -03:00
parent 2c03a7a49e
commit e92c8e70fa
3 changed files with 51 additions and 51 deletions
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15
include/net/bluetooth/l2cap.h
View File

@ -306,6 +306,10 @@ struct l2cap_chan {
__u8 remote_max_tx;
__u16 remote_mps;
struct timer_list retrans_timer;
struct timer_list monitor_timer;
struct timer_list ack_timer;
struct list_head list;
};
@ -379,9 +383,6 @@ struct l2cap_pinfo {
__le16 sport;
struct timer_list retrans_timer;
struct timer_list monitor_timer;
struct timer_list ack_timer;
struct sk_buff_head tx_queue;
struct sk_buff_head srej_queue;
struct sk_buff_head busy_queue;
@ -415,11 +416,11 @@ struct l2cap_pinfo {
#define L2CAP_CONN_RNR_SENT 0x0200
#define L2CAP_CONN_SAR_RETRY 0x0400
#define __mod_retrans_timer() mod_timer(&l2cap_pi(sk)->retrans_timer, \
#define __mod_retrans_timer() mod_timer(&chan->retrans_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));
#define __mod_monitor_timer() mod_timer(&l2cap_pi(sk)->monitor_timer, \
#define __mod_monitor_timer() mod_timer(&chan->monitor_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO));
#define __mod_ack_timer() mod_timer(&l2cap_pi(sk)->ack_timer, \
#define __mod_ack_timer() mod_timer(&chan->ack_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO));
static inline int l2cap_tx_window_full(struct l2cap_chan *ch)
@ -466,7 +467,7 @@ void l2cap_sock_kill(struct sock *sk);
void l2cap_sock_init(struct sock *sk, struct sock *parent);
struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio);
void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err);
void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err);
void l2cap_chan_del(struct l2cap_chan *chan, int err);
int l2cap_do_connect(struct sock *sk);

74
net/bluetooth/l2cap_core.c
View File

@ -241,9 +241,9 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM) {
struct srej_list *l, *tmp;
del_timer(&l2cap_pi(sk)->retrans_timer);
del_timer(&l2cap_pi(sk)->monitor_timer);
del_timer(&l2cap_pi(sk)->ack_timer);
del_timer(&chan->retrans_timer);
del_timer(&chan->monitor_timer);
del_timer(&chan->ack_timer);
skb_queue_purge(SREJ_QUEUE(sk));
skb_queue_purge(BUSY_QUEUE(sk));
@ -462,19 +462,22 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
}
}
void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err)
void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
{
struct sock *sk;
struct l2cap_disconn_req req;
if (!conn)
return;
sk = chan->sk;
skb_queue_purge(TX_QUEUE(sk));
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM) {
del_timer(&l2cap_pi(sk)->retrans_timer);
del_timer(&l2cap_pi(sk)->monitor_timer);
del_timer(&l2cap_pi(sk)->ack_timer);
del_timer(&chan->retrans_timer);
del_timer(&chan->monitor_timer);
del_timer(&chan->ack_timer);
}
req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
@ -957,7 +960,7 @@ static void l2cap_monitor_timeout(unsigned long arg)
bh_lock_sock(sk);
if (chan->retry_count >= chan->remote_max_tx) {
l2cap_send_disconn_req(l2cap_pi(sk)->conn, sk, ECONNABORTED);
l2cap_send_disconn_req(l2cap_pi(sk)->conn, chan, ECONNABORTED);
bh_unlock_sock(sk);
return;
}
@ -1003,7 +1006,7 @@ static void l2cap_drop_acked_frames(struct l2cap_chan *chan)
}
if (!chan->unacked_frames)
del_timer(&l2cap_pi(sk)->retrans_timer);
del_timer(&chan->retrans_timer);
}
void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
@ -1067,7 +1070,7 @@ static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u8 tx_seq)
if (chan->remote_max_tx &&
bt_cb(skb)->retries == chan->remote_max_tx) {
l2cap_send_disconn_req(pi->conn, sk, ECONNABORTED);
l2cap_send_disconn_req(pi->conn, chan, ECONNABORTED);
return;
}
@ -1108,7 +1111,7 @@ int l2cap_ertm_send(struct l2cap_chan *chan)
if (chan->remote_max_tx &&
bt_cb(skb)->retries == chan->remote_max_tx) {
l2cap_send_disconn_req(pi->conn, sk, ECONNABORTED);
l2cap_send_disconn_req(pi->conn, chan, ECONNABORTED);
break;
}
@ -1579,12 +1582,11 @@ static inline void l2cap_ertm_init(struct l2cap_chan *chan)
chan->num_acked = 0;
chan->frames_sent = 0;
setup_timer(&l2cap_pi(sk)->retrans_timer,
l2cap_retrans_timeout, (unsigned long) chan);
setup_timer(&l2cap_pi(sk)->monitor_timer,
l2cap_monitor_timeout, (unsigned long) chan);
setup_timer(&l2cap_pi(sk)->ack_timer,
l2cap_ack_timeout, (unsigned long) chan);
setup_timer(&chan->retrans_timer, l2cap_retrans_timeout,
(unsigned long) chan);
setup_timer(&chan->monitor_timer, l2cap_monitor_timeout,
(unsigned long) chan);
setup_timer(&chan->ack_timer, l2cap_ack_timeout, (unsigned long) chan);
__skb_queue_head_init(SREJ_QUEUE(sk));
__skb_queue_head_init(BUSY_QUEUE(sk));
@ -2291,7 +2293,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
/* Complete config. */
len = l2cap_parse_conf_req(chan, rsp);
if (len < 0) {
l2cap_send_disconn_req(conn, sk, ECONNRESET);
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto unlock;
}
@ -2363,7 +2365,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
char req[64];
if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
l2cap_send_disconn_req(conn, sk, ECONNRESET);
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
@ -2372,7 +2374,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
len = l2cap_parse_conf_rsp(sk, rsp->data,
len, req, &result);
if (len < 0) {
l2cap_send_disconn_req(conn, sk, ECONNRESET);
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
@ -2387,7 +2389,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
default:
sk->sk_err = ECONNRESET;
l2cap_sock_set_timer(sk, HZ * 5);
l2cap_send_disconn_req(conn, sk, ECONNRESET);
l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
@ -2957,7 +2959,7 @@ drop:
chan->sdu = NULL;
disconnect:
l2cap_send_disconn_req(pi->conn, chan->sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
kfree_skb(skb);
return 0;
}
@ -2965,7 +2967,6 @@ disconnect:
static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
{
struct sock *sk = chan->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb;
u16 control;
int err;
@ -2989,7 +2990,7 @@ static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
l2cap_send_sframe(chan, control);
chan->retry_count = 1;
del_timer(&pi->retrans_timer);
del_timer(&chan->retrans_timer);
__mod_monitor_timer();
chan->conn_state |= L2CAP_CONN_WAIT_F;
@ -3020,7 +3021,7 @@ static void l2cap_busy_work(struct work_struct *work)
if (n_tries++ > L2CAP_LOCAL_BUSY_TRIES) {
err = -EBUSY;
l2cap_send_disconn_req(pi->conn, sk, EBUSY);
l2cap_send_disconn_req(pi->conn, pi->chan, EBUSY);
break;
}
@ -3083,7 +3084,7 @@ static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 c
chan->conn_state |= L2CAP_CONN_RNR_SENT;
del_timer(&pi->ack_timer);
del_timer(&chan->ack_timer);
queue_work(_busy_wq, &pi->busy_work);
@ -3258,7 +3259,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (L2CAP_CTRL_FINAL & rx_control &&
chan->conn_state & L2CAP_CONN_WAIT_F) {
del_timer(&pi->monitor_timer);
del_timer(&chan->monitor_timer);
if (chan->unacked_frames > 0)
__mod_retrans_timer();
chan->conn_state &= ~L2CAP_CONN_WAIT_F;
@ -3276,7 +3277,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
/* invalid tx_seq */
if (tx_seq_offset >= pi->tx_win) {
l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
@ -3341,7 +3342,7 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
l2cap_send_srejframe(chan, tx_seq);
del_timer(&pi->ack_timer);
del_timer(&chan->ack_timer);
}
return 0;
@ -3484,7 +3485,6 @@ static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u16 rx_
static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u16 rx_control)
{
struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
u8 tx_seq = __get_reqseq(rx_control);
BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
@ -3497,7 +3497,7 @@ static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u16 rx_c
chan->conn_state |= L2CAP_CONN_SEND_FBIT;
if (!(chan->conn_state & L2CAP_CONN_SREJ_SENT)) {
del_timer(&pi->retrans_timer);
del_timer(&chan->retrans_timer);
if (rx_control & L2CAP_CTRL_POLL)
l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_FINAL);
return;
@ -3511,13 +3511,11 @@ static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u16 rx_c
static inline int l2cap_data_channel_sframe(struct l2cap_chan *chan, u16 rx_control, struct sk_buff *skb)
{
struct sock *sk = chan->sk;
BT_DBG("chan %p rx_control 0x%4.4x len %d", chan, rx_control, skb->len);
if (L2CAP_CTRL_FINAL & rx_control &&
chan->conn_state & L2CAP_CONN_WAIT_F) {
del_timer(&l2cap_pi(sk)->monitor_timer);
del_timer(&chan->monitor_timer);
if (chan->unacked_frames > 0)
__mod_retrans_timer();
chan->conn_state &= ~L2CAP_CONN_WAIT_F;
@ -3572,7 +3570,7 @@ static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb)
len -= 2;
if (len > pi->mps) {
l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
@ -3588,13 +3586,13 @@ static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb)
/* check for invalid req-seq */
if (req_seq_offset > next_tx_seq_offset) {
l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
if (__is_iframe(control)) {
if (len < 0) {
l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
@ -3602,7 +3600,7 @@ static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb)
} else {
if (len != 0) {
BT_ERR("%d", len);
l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}

13
net/bluetooth/l2cap_sock.c
View File

@ -866,6 +866,7 @@ static void l2cap_sock_cleanup_listen(struct sock *parent)
void __l2cap_sock_close(struct sock *sk, int reason)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
struct l2cap_chan *chan = l2cap_pi(sk)->chan;
BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
@ -880,9 +881,9 @@ void __l2cap_sock_close(struct sock *sk, int reason)
sk->sk_type == SOCK_STREAM) &&
conn->hcon->type == ACL_LINK) {
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
l2cap_send_disconn_req(conn, sk, reason);
l2cap_send_disconn_req(conn, chan, reason);
} else
l2cap_chan_del(l2cap_pi(sk)->chan, reason);
l2cap_chan_del(chan, reason);
break;
case BT_CONNECT2:
@ -901,16 +902,16 @@ void __l2cap_sock_close(struct sock *sk, int reason)
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.result = cpu_to_le16(result);
rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
l2cap_send_cmd(conn, l2cap_pi(sk)->chan->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
sizeof(rsp), &rsp);
}
l2cap_chan_del(l2cap_pi(sk)->chan, reason);
l2cap_chan_del(chan, reason);
break;
case BT_CONNECT:
case BT_DISCONN:
l2cap_chan_del(l2cap_pi(sk)->chan, reason);
l2cap_chan_del(chan, reason);
break;
default: