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@xxxxxxxxx> --- include/net/bluetooth/l2cap.h | 3 +++ net/bluetooth/l2cap.c | 32 ++++++++++++++++++++++++-------- 2 files changed, 27 insertions(+), 8 deletions(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index c819c8b..cc3a140 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -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 diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 6f931cc..18643af 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -617,6 +617,12 @@ 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); @@ -675,7 +681,11 @@ 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; @@ -1102,8 +1112,13 @@ static int l2cap_do_connect(struct sock *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; @@ -1154,13 +1169,13 @@ 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; } @@ -1202,14 +1217,15 @@ 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; } - /* Set destination address and psm */ + /* Set destination address and psm or cid */ 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) @@ -4525,7 +4541,7 @@ 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) { @@ -4554,7 +4570,7 @@ 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)); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html