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Commit f0709e03 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by David S. Miller
Browse files

[Bluetooth] Advertise L2CAP features mask support 



Indicate the support for the L2CAP features mask value when the remote
entity tries to negotiate Bluetooth 1.2 specific features.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 4e8402a3

net/bluetooth/l2cap.c

+18 −5
Original line number Diff line number Diff line
@@ -55,7 +55,9 @@ 
#define BT_DBG(D...)

#endif



#define VERSION "2.8"

#define VERSION "2.9"



static u32 l2cap_feat_mask = 0x0000;



static const struct proto_ops l2cap_sock_ops;
@@ -1775,16 +1777,27 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd 
static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)

{

	struct l2cap_info_req *req = (struct l2cap_info_req *) data;

	struct l2cap_info_rsp rsp;

	u16 type;



	type = __le16_to_cpu(req->type);



	BT_DBG("type 0x%4.4x", type);



	if (type == L2CAP_IT_FEAT_MASK) {

		u8 buf[8];

		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;

		rsp->type   = cpu_to_le16(L2CAP_IT_FEAT_MASK);

		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);

		put_unaligned(cpu_to_le32(l2cap_feat_mask), (__le32 *) rsp->data);

		l2cap_send_cmd(conn, cmd->ident,

					L2CAP_INFO_RSP, sizeof(buf), buf);

	} else {

		struct l2cap_info_rsp rsp;

		rsp.type   = cpu_to_le16(type);

		rsp.result = cpu_to_le16(L2CAP_IR_NOTSUPP);

	l2cap_send_cmd(conn, cmd->ident, L2CAP_INFO_RSP, sizeof(rsp), &rsp);

		l2cap_send_cmd(conn, cmd->ident,

					L2CAP_INFO_RSP, sizeof(rsp), &rsp);

	}



	return 0;

}