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Bluetooth: Add LE connection support to L2CAP 

Add basic LE connection support to L2CAP. LE
connection can be created by specifying cid
in struct sockaddr_l2

Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Ville Tervo 2011-02-10 22:38:49 -03:00 committed by Gustavo F. Padovan
parent 6ed58ec520
commit acd7d37085
3 changed files with 26 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/bluetooth/l2cap.h
View File

@ -160,6 +160,9 @@ struct l2cap_conn_rsp {
/* channel indentifier */
#define L2CAP_CID_SIGNALING 0x0001
#define L2CAP_CID_CONN_LESS 0x0002
#define L2CAP_CID_LE_DATA 0x0004
#define L2CAP_CID_LE_SIGNALING 0x0005
#define L2CAP_CID_SMP 0x0006
#define L2CAP_CID_DYN_START 0x0040
#define L2CAP_CID_DYN_END 0xffff

23
net/bluetooth/l2cap_core.c
View File

@ -593,6 +593,12 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
bh_lock_sock(sk);
if (conn->hcon->type == LE_LINK) {
l2cap_sock_clear_timer(sk);
sk->sk_state = BT_CONNECTED;
sk->sk_state_change(sk);
}
if (sk->sk_type != SOCK_SEQPACKET &&
sk->sk_type != SOCK_STREAM) {
l2cap_sock_clear_timer(sk);
@ -651,7 +657,11 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
BT_DBG("hcon %p conn %p", hcon, conn);
conn->mtu = hcon->hdev->acl_mtu;
if (hcon->hdev->le_mtu && hcon->type == LE_LINK)
conn->mtu = hcon->hdev->le_mtu;
else
conn->mtu = hcon->hdev->acl_mtu;
conn->src = &hcon->hdev->bdaddr;
conn->dst = &hcon->dst;
@ -758,8 +768,13 @@ int l2cap_do_connect(struct sock *sk)
auth_type = l2cap_get_auth_type(sk);
hcon = hci_connect(hdev, ACL_LINK, dst,
if (l2cap_pi(sk)->dcid == L2CAP_CID_LE_DATA)
hcon = hci_connect(hdev, LE_LINK, dst,
l2cap_pi(sk)->sec_level, auth_type);
else
hcon = hci_connect(hdev, ACL_LINK, dst,
l2cap_pi(sk)->sec_level, auth_type);
if (!hcon)
goto done;
@ -3520,7 +3535,7 @@ static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
if (hcon->type != ACL_LINK)
if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
return -EINVAL;
if (!status) {
@ -3549,7 +3564,7 @@ static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
{
BT_DBG("hcon %p reason %d", hcon, reason);
if (hcon->type != ACL_LINK)
if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
return -EINVAL;
l2cap_conn_del(hcon, bt_err(reason));

7
net/bluetooth/l2cap_sock.c
View File

@ -168,13 +168,13 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
len = min_t(unsigned int, sizeof(la), alen);
memcpy(&la, addr, len);
if (la.l2_cid)
if (la.l2_cid && la.l2_psm)
return -EINVAL;
lock_sock(sk);
if ((sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM)
&& !la.l2_psm) {
&& !(la.l2_psm || la.l2_cid)) {
err = -EINVAL;
goto done;
}
@ -216,7 +216,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
/* PSM must be odd and lsb of upper byte must be 0 */
if ((__le16_to_cpu(la.l2_psm) & 0x0101) != 0x0001 &&
sk->sk_type != SOCK_RAW) {
sk->sk_type != SOCK_RAW && !la.l2_cid) {
err = -EINVAL;
goto done;
}
@ -224,6 +224,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al
/* Set destination address and psm */
bacpy(&bt_sk(sk)->dst, &la.l2_bdaddr);
l2cap_pi(sk)->psm = la.l2_psm;
l2cap_pi(sk)->dcid = la.l2_cid;
err = l2cap_do_connect(sk);
if (err)