}
}
+static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
+{
+ u32 local_feat_mask = l2cap_feat_mask;
+ if (enable_ertm)
+ local_feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING;
+
+ switch (mode) {
+ case L2CAP_MODE_ERTM:
+ return L2CAP_FEAT_ERTM & feat_mask & local_feat_mask;
+ case L2CAP_MODE_STREAMING:
+ return L2CAP_FEAT_STREAMING & feat_mask & local_feat_mask;
+ default:
+ return 0x00;
+ }
+}
+
static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err)
{
struct l2cap_disconn_req req;
static void l2cap_conn_start(struct l2cap_conn *conn)
{
struct l2cap_chan_list *l = &conn->chan_list;
+ struct sock_del_list del, *tmp1, *tmp2;
struct sock *sk;
BT_DBG("conn %p", conn);
+ INIT_LIST_HEAD(&del.list);
+
read_lock(&l->lock);
for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
if (l2cap_check_security(sk) &&
__l2cap_no_conn_pending(sk)) {
struct l2cap_conn_req req;
+
+ if (!l2cap_mode_supported(l2cap_pi(sk)->mode,
+ conn->feat_mask)
+ && l2cap_pi(sk)->conf_state &
+ L2CAP_CONF_STATE2_DEVICE) {
+ tmp1 = kzalloc(sizeof(struct srej_list),
+ GFP_ATOMIC);
+ tmp1->sk = sk;
+ list_add_tail(&tmp1->list, &del.list);
+ bh_unlock_sock(sk);
+ continue;
+ }
+
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
}
read_unlock(&l->lock);
+
+ list_for_each_entry_safe(tmp1, tmp2, &del.list, list) {
+ bh_lock_sock(tmp1->sk);
+ __l2cap_sock_close(tmp1->sk, ECONNRESET);
+ bh_unlock_sock(tmp1->sk);
+ list_del(&tmp1->list);
+ kfree(tmp1);
+ }
}
static void l2cap_conn_ready(struct l2cap_conn *conn)
pi->imtu = l2cap_pi(parent)->imtu;
pi->omtu = l2cap_pi(parent)->omtu;
+ pi->conf_state = l2cap_pi(parent)->conf_state;
pi->mode = l2cap_pi(parent)->mode;
pi->fcs = l2cap_pi(parent)->fcs;
pi->max_tx = l2cap_pi(parent)->max_tx;
} else {
pi->imtu = L2CAP_DEFAULT_MTU;
pi->omtu = 0;
- if (enable_ertm && sk->sk_type == SOCK_STREAM)
+ if (enable_ertm && sk->sk_type == SOCK_STREAM) {
pi->mode = L2CAP_MODE_ERTM;
- else
+ pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
+ } else {
pi->mode = L2CAP_MODE_BASIC;
+ }
pi->max_tx = L2CAP_DEFAULT_MAX_TX;
pi->fcs = L2CAP_FCS_CRC16;
pi->tx_win = L2CAP_DEFAULT_TX_WINDOW;
struct l2cap_pinfo *pi = l2cap_pi(sk);
int ret;
- spin_lock_bh(&pi->send_lock);
-
if (!skb_queue_empty(TX_QUEUE(sk)))
sk->sk_send_head = TX_QUEUE(sk)->next;
pi->next_tx_seq = pi->expected_ack_seq;
ret = l2cap_ertm_send(sk);
-
- spin_unlock_bh(&pi->send_lock);
-
return ret;
}
{
struct sock *sk = (struct sock *)pi;
u16 control = 0;
- int nframes;
control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
return;
}
- spin_lock_bh(&pi->send_lock);
- nframes = l2cap_ertm_send(sk);
- spin_unlock_bh(&pi->send_lock);
-
- if (nframes > 0)
+ if (l2cap_ertm_send(sk) > 0)
return;
control |= L2CAP_SUPER_RCV_READY;
size += buflen;
}
skb_queue_splice_tail(&sar_queue, TX_QUEUE(sk));
- spin_lock_bh(&pi->send_lock);
if (sk->sk_send_head == NULL)
sk->sk_send_head = sar_queue.next;
- spin_unlock_bh(&pi->send_lock);
return size;
}
}
__skb_queue_tail(TX_QUEUE(sk), skb);
- if (pi->mode == L2CAP_MODE_ERTM)
- spin_lock_bh(&pi->send_lock);
-
if (sk->sk_send_head == NULL)
sk->sk_send_head = skb;
- if (pi->mode == L2CAP_MODE_ERTM)
- spin_unlock_bh(&pi->send_lock);
} else {
/* Segment SDU into multiples PDUs */
err = l2cap_sar_segment_sdu(sk, msg, len);
err = len;
break;
}
- spin_lock_bh(&pi->send_lock);
err = l2cap_ertm_send(sk);
- spin_unlock_bh(&pi->send_lock);
}
if (err >= 0)
l2cap_pi(sk)->mode = opts.mode;
switch (l2cap_pi(sk)->mode) {
case L2CAP_MODE_BASIC:
+ l2cap_pi(sk)->conf_state &= ~L2CAP_CONF_STATE2_DEVICE;
break;
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
__skb_queue_head_init(SREJ_QUEUE(sk));
__skb_queue_head_init(BUSY_QUEUE(sk));
- spin_lock_init(&l2cap_pi(sk)->send_lock);
INIT_WORK(&l2cap_pi(sk)->busy_work, l2cap_busy_work);
}
-static int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
-{
- u32 local_feat_mask = l2cap_feat_mask;
- if (enable_ertm)
- local_feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING;
-
- switch (mode) {
- case L2CAP_MODE_ERTM:
- return L2CAP_FEAT_ERTM & feat_mask & local_feat_mask;
- case L2CAP_MODE_STREAMING:
- return L2CAP_FEAT_STREAMING & feat_mask & local_feat_mask;
- default:
- return 0x00;
- }
-}
-
static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
{
switch (mode) {
switch (pi->mode) {
case L2CAP_MODE_STREAMING:
case L2CAP_MODE_ERTM:
- pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
- if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask))
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
- break;
+ if (pi->conf_state & L2CAP_CONF_STATE2_DEVICE)
+ break;
+
+ /* fall through */
default:
pi->mode = l2cap_select_mode(rfc.mode, pi->conn->feat_mask);
break;
case L2CAP_MODE_BASIC:
if (pi->imtu != L2CAP_DEFAULT_MTU)
l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu);
+
+ rfc.mode = L2CAP_MODE_BASIC;
+ rfc.txwin_size = 0;
+ rfc.max_transmit = 0;
+ rfc.retrans_timeout = 0;
+ rfc.monitor_timeout = 0;
+ rfc.max_pdu_size = 0;
+
break;
case L2CAP_MODE_ERTM:
if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10)
rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10);
- l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
- sizeof(rfc), (unsigned long) &rfc);
-
if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS))
break;
if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10)
rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10);
- l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
- sizeof(rfc), (unsigned long) &rfc);
-
if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS))
break;
break;
}
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+ (unsigned long) &rfc);
+
/* FIXME: Need actual value of the flush timeout */
//if (flush_to != L2CAP_DEFAULT_FLUSH_TO)
// l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2, pi->flush_to);
switch (pi->mode) {
case L2CAP_MODE_STREAMING:
case L2CAP_MODE_ERTM:
- pi->conf_state |= L2CAP_CONF_STATE2_DEVICE;
- if (!l2cap_mode_supported(pi->mode, pi->conn->feat_mask))
+ if (!(pi->conf_state & L2CAP_CONF_STATE2_DEVICE)) {
+ pi->mode = l2cap_select_mode(rfc.mode,
+ pi->conn->feat_mask);
+ break;
+ }
+
+ if (pi->mode != rfc.mode)
return -ECONNREFUSED;
- break;
- default:
- pi->mode = l2cap_select_mode(rfc.mode, pi->conn->feat_mask);
+
break;
}
rfc.mode != pi->mode)
return -ECONNREFUSED;
- pi->mode = rfc.mode;
pi->fcs = 0;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
}
}
+ if (pi->mode == L2CAP_MODE_BASIC && pi->mode != rfc.mode)
+ return -ECONNREFUSED;
+
+ pi->mode = rfc.mode;
+
if (*result == L2CAP_CONF_SUCCESS) {
switch (rfc.mode) {
case L2CAP_MODE_ERTM:
if (!sk)
return -ENOENT;
- if (sk->sk_state == BT_DISCONN)
+ 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);
goto unlock;
+ }
/* Reject if config buffer is too small. */
len = cmd_len - sizeof(*req);
if (pi->conn_state & L2CAP_CONN_REMOTE_BUSY)
l2cap_retransmit_frames(sk);
- spin_lock_bh(&pi->send_lock);
l2cap_ertm_send(sk);
- spin_unlock_bh(&pi->send_lock);
if (!(pi->conn_state & L2CAP_CONN_LOCAL_BUSY) &&
pi->frames_sent == 0) {
if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
l2cap_send_ack(pi);
} else {
- spin_lock_bh(&pi->send_lock);
l2cap_ertm_send(sk);
- spin_unlock_bh(&pi->send_lock);
}
}
}
pi->conn_state |= L2CAP_CONN_SEND_FBIT;
l2cap_retransmit_one_frame(sk, tx_seq);
- spin_lock_bh(&pi->send_lock);
l2cap_ertm_send(sk);
- spin_unlock_bh(&pi->send_lock);
if (pi->conn_state & L2CAP_CONN_WAIT_F) {
pi->srej_save_reqseq = tx_seq;
projects / cascardo / linux.git / blobdiff