Commit 715ec005 authored by Gustavo F. Padovan's avatar Gustavo F. Padovan
Browse files

Bluetooth: Add chan->chan_type struct member 



chan_type says if our chan is raw(direclty access to HCI),
connection less or connection oriented.

Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 9a91a04a

include/net/bluetooth/l2cap.h

+5 −0
Original line number Diff line number Diff line
@@ -295,6 +295,7 @@ struct l2cap_chan { 
	__u16		omtu;

	__u16		flush_to;

	__u8		mode;

	__u8		chan_type;



	__le16		sport;
@@ -384,6 +385,10 @@ struct l2cap_conn { 
#define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x04

#define L2CAP_INFO_FEAT_MASK_REQ_DONE	0x08



#define L2CAP_CHAN_RAW			1

#define L2CAP_CHAN_CONN_LESS		2

#define L2CAP_CHAN_CONN_ORIENTED	3



/* ----- L2CAP socket info ----- */

#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)

net/bluetooth/l2cap_core.c

+11 −19
Original line number Diff line number Diff line
@@ -245,7 +245,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) 


	chan->conn = conn;



	if (sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM) {

	if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED) {

		if (conn->hcon->type == LE_LINK) {

			/* LE connection */

			chan->omtu = L2CAP_LE_DEFAULT_MTU;
@@ -256,7 +256,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) 
			chan->scid = l2cap_alloc_cid(conn);

			chan->omtu = L2CAP_DEFAULT_MTU;

		}

	} else if (sk->sk_type == SOCK_DGRAM) {

	} else if (chan->chan_type == L2CAP_CHAN_CONN_LESS) {

		/* Connectionless socket */

		chan->scid = L2CAP_CID_CONN_LESS;

		chan->dcid = L2CAP_CID_CONN_LESS;
@@ -369,8 +369,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) 


	case BT_CONNECTED:

	case BT_CONFIG:

		if ((sk->sk_type == SOCK_SEQPACKET ||

					sk->sk_type == SOCK_STREAM) &&

		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&

					conn->hcon->type == ACL_LINK) {

			l2cap_sock_set_timer(sk, sk->sk_sndtimeo);

			l2cap_send_disconn_req(conn, chan, reason);
@@ -379,8 +378,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) 
		break;



	case BT_CONNECT2:

		if ((sk->sk_type == SOCK_SEQPACKET ||

					sk->sk_type == SOCK_STREAM) &&

		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&

					conn->hcon->type == ACL_LINK) {

			struct l2cap_conn_rsp rsp;

			__u16 result;
@@ -414,9 +412,7 @@ void __l2cap_chan_close(struct l2cap_chan *chan, int reason) 


static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)

{

	struct sock *sk = chan->sk;



	if (sk->sk_type == SOCK_RAW) {

	if (chan->chan_type == L2CAP_CHAN_RAW) {

		switch (chan->sec_level) {

		case BT_SECURITY_HIGH:

			return HCI_AT_DEDICATED_BONDING_MITM;
@@ -657,8 +653,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) 


		bh_lock_sock(sk);



		if (sk->sk_type != SOCK_SEQPACKET &&

				sk->sk_type != SOCK_STREAM) {

		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {

			bh_unlock_sock(sk);

			continue;

		}
@@ -852,8 +847,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn) 
			sk->sk_state_change(sk);

		}



		if (sk->sk_type != SOCK_SEQPACKET &&

				sk->sk_type != SOCK_STREAM) {

		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {

			l2cap_sock_clear_timer(sk);

			sk->sk_state = BT_CONNECTED;

			sk->sk_state_change(sk);
@@ -1056,8 +1050,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan) 
	l2cap_sock_set_timer(sk, sk->sk_sndtimeo);



	if (hcon->state == BT_CONNECTED) {

		if (sk->sk_type != SOCK_SEQPACKET &&

				sk->sk_type != SOCK_STREAM) {

		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {

			l2cap_sock_clear_timer(sk);

			if (l2cap_check_security(chan))

				sk->sk_state = BT_CONNECTED;
@@ -1537,13 +1530,12 @@ int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t le 


int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len)

{

	struct sock *sk = chan->sk;

	struct sk_buff *skb;

	u16 control;

	int err;



	/* Connectionless channel */

	if (sk->sk_type == SOCK_DGRAM) {

	if (chan->chan_type == L2CAP_CHAN_CONN_LESS) {

		skb = l2cap_create_connless_pdu(chan, msg, len);

		if (IS_ERR(skb))

			return PTR_ERR(skb);
@@ -1650,7 +1642,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb) 
	read_lock(&conn->chan_lock);

	list_for_each_entry(chan, &conn->chan_l, list) {

		struct sock *sk = chan->sk;

		if (sk->sk_type != SOCK_RAW)

		if (chan->chan_type != L2CAP_CHAN_RAW)

			continue;



		/* Don't send frame to the socket it came from */
@@ -4100,7 +4092,7 @@ static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt) 
{

	struct sock *sk = chan->sk;



	if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM)

	if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED)

		return;



	if (encrypt == 0x00) {

net/bluetooth/l2cap_sock.c

+22 −7
Original line number Diff line number Diff line
@@ -162,7 +162,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al 


	lock_sock(sk);



	if ((sk->sk_type == SOCK_SEQPACKET || sk->sk_type == SOCK_STREAM)

	if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED

			&& !(la.l2_psm || la.l2_cid)) {

		err = -EINVAL;

		goto done;
@@ -204,8 +204,8 @@ 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 && !la.l2_cid) {

	if ((__le16_to_cpu(la.l2_psm) & 0x0101) != 0x0001 && !la.l2_cid &&

					chan->chan_type != L2CAP_CHAN_RAW) {

		err = -EINVAL;

		goto done;

	}
@@ -453,8 +453,8 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch 


	switch (optname) {

	case BT_SECURITY:

		if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM

				&& sk->sk_type != SOCK_RAW) {

		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&

					chan->chan_type != L2CAP_CHAN_RAW) {

			err = -EINVAL;

			break;

		}
@@ -599,8 +599,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch 


	switch (optname) {

	case BT_SECURITY:

		if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM

				&& sk->sk_type != SOCK_RAW) {

		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&

					chan->chan_type != L2CAP_CHAN_RAW) {

			err = -EINVAL;

			break;

		}
@@ -806,6 +806,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent) 
		sk->sk_type = parent->sk_type;

		bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup;



		chan->chan_type = pchan->chan_type;

		chan->imtu = pchan->imtu;

		chan->omtu = pchan->omtu;

		chan->conf_state = pchan->conf_state;
@@ -818,6 +819,20 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent) 
		chan->force_reliable = pchan->force_reliable;

		chan->flushable = pchan->flushable;

	} else {



		switch (sk->sk_type) {

		case SOCK_RAW:

			chan->chan_type = L2CAP_CHAN_RAW;

			break;

		case SOCK_DGRAM:

			chan->chan_type = L2CAP_CHAN_CONN_LESS;

			break;

		case SOCK_SEQPACKET:

		case SOCK_STREAM:

			chan->chan_type = L2CAP_CHAN_CONN_ORIENTED;

			break;

		}



		chan->imtu = L2CAP_DEFAULT_MTU;

		chan->omtu = 0;

		if (!disable_ertm && sk->sk_type == SOCK_STREAM) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE