722 lines
20 KiB
C
722 lines
20 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (c) 2000-2001, 2010-2012 The Linux Foundation. All rights reserved.
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Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
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Copyright (C) 2010 Google Inc.
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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#ifndef __L2CAP_H
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#define __L2CAP_H
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/* L2CAP defaults */
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#define L2CAP_DEFAULT_MTU 672
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#define L2CAP_DEFAULT_MIN_MTU 48
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#define L2CAP_DEFAULT_MAX_SDU_SIZE 0xffff
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#define L2CAP_DEFAULT_FLUSH_TO 0xffff
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#define L2CAP_MAX_FLUSH_TO 0x7ff
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#define L2CAP_DEFAULT_TX_WINDOW 63
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#define L2CAP_DEFAULT_MAX_TX 3
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#define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */
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#define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */
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#define L2CAP_DEFAULT_MAX_PDU_SIZE 1482 /* Sized for AMP or BR/EDR */
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#define L2CAP_DEFAULT_ACK_TO 200
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#define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */
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#define L2CAP_MAX_ERTM_QUEUED 5
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#define L2CAP_MIN_ERTM_QUEUED 2
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#define L2CAP_A2MP_DEFAULT_MTU 670
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#define L2CAP_TX_WIN_MAX_ENHANCED 0x3f
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#define L2CAP_TX_WIN_MAX_EXTENDED 0x3fff
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#define L2CAP_LE_DEFAULT_MTU 23
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#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
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#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
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#define L2CAP_MOVE_TIMEOUT (4*HZ) /* 4 seconds */
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#define L2CAP_MOVE_ERTX_TIMEOUT (60*HZ) /* 60 seconds */
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/* L2CAP socket address */
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struct sockaddr_l2 {
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sa_family_t l2_family;
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__le16 l2_psm;
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bdaddr_t l2_bdaddr;
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__le16 l2_cid;
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};
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/* L2CAP socket options */
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#define L2CAP_OPTIONS 0x01
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struct l2cap_options {
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__u16 omtu;
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__u16 imtu;
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__u16 flush_to;
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__u8 mode;
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__u8 fcs;
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__u8 max_tx;
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__u16 txwin_size;
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};
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#define L2CAP_CONNINFO 0x02
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struct l2cap_conninfo {
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__u16 hci_handle;
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__u8 dev_class[3];
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};
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#define L2CAP_LM 0x03
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#define L2CAP_LM_MASTER 0x0001
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#define L2CAP_LM_AUTH 0x0002
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#define L2CAP_LM_ENCRYPT 0x0004
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#define L2CAP_LM_TRUSTED 0x0008
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#define L2CAP_LM_RELIABLE 0x0010
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#define L2CAP_LM_SECURE 0x0020
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#define L2CAP_LM_FLUSHABLE 0x0040
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/* L2CAP command codes */
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#define L2CAP_COMMAND_REJ 0x01
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#define L2CAP_CONN_REQ 0x02
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#define L2CAP_CONN_RSP 0x03
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#define L2CAP_CONF_REQ 0x04
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#define L2CAP_CONF_RSP 0x05
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#define L2CAP_DISCONN_REQ 0x06
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#define L2CAP_DISCONN_RSP 0x07
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#define L2CAP_ECHO_REQ 0x08
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#define L2CAP_ECHO_RSP 0x09
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#define L2CAP_INFO_REQ 0x0a
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#define L2CAP_INFO_RSP 0x0b
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#define L2CAP_CREATE_CHAN_REQ 0x0c
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#define L2CAP_CREATE_CHAN_RSP 0x0d
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#define L2CAP_MOVE_CHAN_REQ 0x0e
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#define L2CAP_MOVE_CHAN_RSP 0x0f
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#define L2CAP_MOVE_CHAN_CFM 0x10
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#define L2CAP_MOVE_CHAN_CFM_RSP 0x11
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#define L2CAP_CONN_PARAM_UPDATE_REQ 0x12
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#define L2CAP_CONN_PARAM_UPDATE_RSP 0x13
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/* L2CAP feature mask */
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#define L2CAP_FEAT_FLOWCTL 0x00000001
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#define L2CAP_FEAT_RETRANS 0x00000002
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#define L2CAP_FEAT_ERTM 0x00000008
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#define L2CAP_FEAT_STREAMING 0x00000010
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#define L2CAP_FEAT_FCS 0x00000020
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#define L2CAP_FEAT_FIXED_CHAN 0x00000080
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#define L2CAP_FEAT_EXT_WINDOW 0x00000100
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#define L2CAP_FEAT_UCD 0x00000200
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/* L2CAP checksum option */
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#define L2CAP_FCS_NONE 0x00
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#define L2CAP_FCS_CRC16 0x01
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/* L2CAP fixed channels */
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#define L2CAP_FC_L2CAP 0x02
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#define L2CAP_FC_A2MP 0x08
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/* L2CAP Control Field */
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#define L2CAP_CTRL_SAR 0xC000
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#define L2CAP_CTRL_REQSEQ 0x3F00
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#define L2CAP_CTRL_TXSEQ 0x007E
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#define L2CAP_CTRL_FINAL 0x0080
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#define L2CAP_CTRL_POLL 0x0010
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#define L2CAP_CTRL_SUPERVISE 0x000C
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#define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */
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#define L2CAP_CTRL_TXSEQ_SHIFT 1
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#define L2CAP_CTRL_SUPERVISE_SHIFT 2
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#define L2CAP_CTRL_POLL_SHIFT 4
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#define L2CAP_CTRL_FINAL_SHIFT 7
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#define L2CAP_CTRL_REQSEQ_SHIFT 8
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#define L2CAP_CTRL_SAR_SHIFT 14
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#define L2CAP_EXT_CTRL_SAR 0x00030000
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#define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC
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#define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000
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#define L2CAP_EXT_CTRL_FINAL 0x00000002
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#define L2CAP_EXT_CTRL_POLL 0x00040000
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#define L2CAP_EXT_CTRL_SUPERVISE 0x00030000
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#define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */
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#define L2CAP_EXT_CTRL_FINAL_SHIFT 1
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#define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2
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#define L2CAP_EXT_CTRL_SAR_SHIFT 16
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#define L2CAP_EXT_CTRL_SUPERVISE_SHIFT 16
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#define L2CAP_EXT_CTRL_POLL_SHIFT 18
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#define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18
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/* L2CAP Supervisory Frame Types */
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#define L2CAP_SFRAME_RR 0x00
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#define L2CAP_SFRAME_REJ 0x01
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#define L2CAP_SFRAME_RNR 0x02
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#define L2CAP_SFRAME_SREJ 0x03
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/* L2CAP Segmentation and Reassembly */
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#define L2CAP_SAR_UNSEGMENTED 0x00
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#define L2CAP_SAR_START 0x01
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#define L2CAP_SAR_END 0x02
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#define L2CAP_SAR_CONTINUE 0x03
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/* L2CAP ERTM / Streaming extra field lengths */
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#define L2CAP_SDULEN_SIZE 2
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#define L2CAP_FCS_SIZE 2
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/* L2CAP structures */
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struct l2cap_hdr {
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__le16 len;
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__le16 cid;
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} __packed;
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#define L2CAP_HDR_SIZE 4
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#define L2CAP_ENHANCED_HDR_SIZE 6
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#define L2CAP_EXTENDED_HDR_SIZE 8
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struct l2cap_cmd_hdr {
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__u8 code;
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__u8 ident;
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__le16 len;
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} __packed;
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#define L2CAP_CMD_HDR_SIZE 4
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struct l2cap_cmd_rej {
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__le16 reason;
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} __packed;
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struct l2cap_conn_req {
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__le16 psm;
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__le16 scid;
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} __packed;
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struct l2cap_conn_rsp {
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__le16 dcid;
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__le16 scid;
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__le16 result;
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__le16 status;
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} __packed;
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/* channel indentifier */
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#define L2CAP_CID_SIGNALING 0x0001
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#define L2CAP_CID_CONN_LESS 0x0002
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#define L2CAP_CID_A2MP 0x0003
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#define L2CAP_CID_LE_DATA 0x0004
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#define L2CAP_CID_LE_SIGNALING 0x0005
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#define L2CAP_CID_SMP 0x0006
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#define L2CAP_CID_DYN_START 0x0040
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#define L2CAP_CID_DYN_END 0xffff
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/* connect result */
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#define L2CAP_CR_SUCCESS 0x0000
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#define L2CAP_CR_PEND 0x0001
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#define L2CAP_CR_BAD_PSM 0x0002
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#define L2CAP_CR_SEC_BLOCK 0x0003
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#define L2CAP_CR_NO_MEM 0x0004
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/* connect status */
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#define L2CAP_CS_NO_INFO 0x0000
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#define L2CAP_CS_AUTHEN_PEND 0x0001
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#define L2CAP_CS_AUTHOR_PEND 0x0002
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struct l2cap_conf_req {
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__le16 dcid;
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__le16 flags;
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__u8 data[0];
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} __packed;
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struct l2cap_conf_rsp {
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__le16 scid;
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__le16 flags;
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__le16 result;
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__u8 data[0];
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} __packed;
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#define L2CAP_CONF_SUCCESS 0x0000
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#define L2CAP_CONF_UNACCEPT 0x0001
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#define L2CAP_CONF_REJECT 0x0002
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#define L2CAP_CONF_UNKNOWN 0x0003
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#define L2CAP_CONF_PENDING 0x0004
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#define L2CAP_CONF_FLOW_SPEC_REJECT 0x0005
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struct l2cap_conf_opt {
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__u8 type;
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__u8 len;
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__u8 val[0];
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} __packed;
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#define L2CAP_CONF_OPT_SIZE 2
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#define L2CAP_CONF_HINT 0x80
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#define L2CAP_CONF_MASK 0x7f
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#define L2CAP_CONF_MTU 0x01
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#define L2CAP_CONF_FLUSH_TO 0x02
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#define L2CAP_CONF_QOS 0x03
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#define L2CAP_CONF_RFC 0x04
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#define L2CAP_CONF_FCS 0x05
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#define L2CAP_CONF_EXT_FS 0x06
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#define L2CAP_CONF_EXT_WINDOW 0x07
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/* QOS Service type */
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#define L2CAP_SERVICE_NO_TRAFFIC 0x00
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#define L2CAP_SERVICE_BEST_EFFORT 0x01
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#define L2CAP_SERVICE_GUARANTEED 0x02
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#define L2CAP_CONF_MAX_SIZE 22
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struct l2cap_conf_rfc {
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__u8 mode;
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__u8 txwin_size;
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__u8 max_transmit;
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__le16 retrans_timeout;
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__le16 monitor_timeout;
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__le16 max_pdu_size;
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} __packed;
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struct l2cap_conf_ext_fs {
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__u8 id;
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__u8 type;
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__le16 max_sdu;
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__le32 sdu_arr_time;
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__le32 acc_latency;
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__le32 flush_to;
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} __packed;
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struct l2cap_conf_prm {
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__u8 fcs;
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__le32 flush_to;
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};
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#define L2CAP_MODE_BASIC 0x00
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#define L2CAP_MODE_RETRANS 0x01
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#define L2CAP_MODE_FLOWCTL 0x02
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#define L2CAP_MODE_ERTM 0x03
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#define L2CAP_MODE_STREAMING 0x04
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struct l2cap_disconn_req {
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__le16 dcid;
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__le16 scid;
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} __packed;
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struct l2cap_disconn_rsp {
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__le16 dcid;
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__le16 scid;
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} __packed;
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struct l2cap_info_req {
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__le16 type;
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} __packed;
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struct l2cap_info_rsp {
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__le16 type;
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__le16 result;
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__u8 data[0];
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} __packed;
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struct l2cap_create_chan_req {
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__le16 psm;
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__le16 scid;
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__u8 amp_id;
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} __attribute__ ((packed));
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struct l2cap_create_chan_rsp {
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__le16 dcid;
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__le16 scid;
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__le16 result;
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__le16 status;
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} __attribute__ ((packed));
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#define L2CAP_CREATE_CHAN_SUCCESS (0x0000)
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#define L2CAP_CREATE_CHAN_PENDING (0x0001)
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#define L2CAP_CREATE_CHAN_REFUSED_PSM (0x0002)
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#define L2CAP_CREATE_CHAN_REFUSED_SECURITY (0x0003)
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#define L2CAP_CREATE_CHAN_REFUSED_RESOURCES (0x0004)
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#define L2CAP_CREATE_CHAN_REFUSED_CONTROLLER (0x0005)
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#define L2CAP_CREATE_CHAN_STATUS_NONE (0x0000)
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#define L2CAP_CREATE_CHAN_STATUS_AUTHENTICATION (0x0001)
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#define L2CAP_CREATE_CHAN_STATUS_AUTHORIZATION (0x0002)
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struct l2cap_move_chan_req {
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__le16 icid;
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__u8 dest_amp_id;
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} __attribute__ ((packed));
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struct l2cap_move_chan_rsp {
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__le16 icid;
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__le16 result;
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} __attribute__ ((packed));
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#define L2CAP_MOVE_CHAN_SUCCESS (0x0000)
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#define L2CAP_MOVE_CHAN_PENDING (0x0001)
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#define L2CAP_MOVE_CHAN_REFUSED_CONTROLLER (0x0002)
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#define L2CAP_MOVE_CHAN_REFUSED_SAME_ID (0x0003)
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#define L2CAP_MOVE_CHAN_REFUSED_CONFIG (0x0004)
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#define L2CAP_MOVE_CHAN_REFUSED_COLLISION (0x0005)
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#define L2CAP_MOVE_CHAN_REFUSED_NOT_ALLOWED (0x0006)
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struct l2cap_move_chan_cfm {
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__le16 icid;
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__le16 result;
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} __attribute__ ((packed));
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#define L2CAP_MOVE_CHAN_CONFIRMED (0x0000)
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#define L2CAP_MOVE_CHAN_UNCONFIRMED (0x0001)
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struct l2cap_move_chan_cfm_rsp {
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__le16 icid;
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} __attribute__ ((packed));
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struct l2cap_amp_signal_work {
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struct work_struct work;
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struct l2cap_cmd_hdr cmd;
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struct l2cap_conn *conn;
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struct sk_buff *skb;
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u8 *data;
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};
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struct l2cap_resegment_work {
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struct work_struct work;
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struct sock *sk;
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};
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struct l2cap_logical_link_work {
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struct work_struct work;
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struct hci_chan *chan;
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u8 status;
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};
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/* info type */
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#define L2CAP_IT_CL_MTU 0x0001
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#define L2CAP_IT_FEAT_MASK 0x0002
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#define L2CAP_IT_FIXED_CHAN 0x0003
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/* info result */
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#define L2CAP_IR_SUCCESS 0x0000
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#define L2CAP_IR_NOTSUPP 0x0001
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struct l2cap_conn_param_update_req {
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__le16 min;
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__le16 max;
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__le16 latency;
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__le16 to_multiplier;
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} __packed;
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struct l2cap_conn_param_update_rsp {
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__le16 result;
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} __packed;
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/* Connection Parameters result */
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#define L2CAP_CONN_PARAM_ACCEPTED 0x0000
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#define L2CAP_CONN_PARAM_REJECTED 0x0001
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/* ----- L2CAP connections ----- */
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struct l2cap_chan_list {
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struct sock *head;
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rwlock_t lock;
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};
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struct l2cap_conn {
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struct hci_conn *hcon;
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bdaddr_t *dst;
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bdaddr_t *src;
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unsigned int mtu;
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__u32 feat_mask;
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__u8 fc_mask;
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struct amp_mgr *mgr;
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__u8 info_state;
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__u8 info_ident;
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struct timer_list info_timer;
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spinlock_t lock;
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struct sk_buff *rx_skb;
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__u32 rx_len;
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__u8 tx_ident;
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__u8 disc_reason;
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struct l2cap_chan_list chan_list;
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};
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struct sock_del_list {
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struct sock *sk;
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struct list_head list;
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};
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#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
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#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
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#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
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/* ----- L2CAP channel and socket info ----- */
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#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
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#define TX_QUEUE(sk) (&l2cap_pi(sk)->tx_queue)
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#define SREJ_QUEUE(sk) (&l2cap_pi(sk)->srej_queue)
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struct l2cap_seq_list {
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__u16 head;
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__u16 tail;
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__u16 size;
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__u16 mask;
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__u16 *list;
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};
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struct l2cap_pinfo {
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struct bt_sock bt;
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__le16 psm;
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__u16 dcid;
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__u16 scid;
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__u16 imtu;
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__u16 omtu;
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__u16 flush_to;
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__u8 mode;
|
|
__u8 fixed_channel;
|
|
__u8 num_conf_req;
|
|
__u8 num_conf_rsp;
|
|
__u8 incoming;
|
|
|
|
__u8 fcs;
|
|
__u8 sec_level;
|
|
__u8 role_switch;
|
|
__u8 force_reliable;
|
|
__u8 flushable;
|
|
__u8 force_active;
|
|
|
|
__u8 conf_req[64];
|
|
__u8 conf_len;
|
|
__u8 conf_ident;
|
|
__u16 conf_state;
|
|
__u8 conn_state;
|
|
__u8 tx_state;
|
|
__u8 rx_state;
|
|
__u8 reconf_state;
|
|
|
|
__u8 amp_id;
|
|
__u8 amp_move_id;
|
|
__u8 amp_move_state;
|
|
__u8 amp_move_role;
|
|
__u8 amp_move_cmd_ident;
|
|
__u16 amp_move_reqseq;
|
|
__u16 amp_move_event;
|
|
|
|
__u16 next_tx_seq;
|
|
__u16 expected_ack_seq;
|
|
__u16 expected_tx_seq;
|
|
__u16 buffer_seq;
|
|
__u16 srej_save_reqseq;
|
|
__u16 last_acked_seq;
|
|
__u32 frames_sent;
|
|
__u16 unacked_frames;
|
|
__u8 retry_count;
|
|
__u16 srej_queue_next;
|
|
__u16 sdu_len;
|
|
struct sk_buff *sdu;
|
|
struct sk_buff *sdu_last_frag;
|
|
atomic_t ertm_queued;
|
|
|
|
__u8 ident;
|
|
|
|
__u16 tx_win;
|
|
__u16 tx_win_max;
|
|
__u16 ack_win;
|
|
__u8 max_tx;
|
|
__u8 amp_pref;
|
|
__u16 remote_tx_win;
|
|
__u8 remote_max_tx;
|
|
__u8 extended_control;
|
|
__u16 retrans_timeout;
|
|
__u16 monitor_timeout;
|
|
__u16 remote_mps;
|
|
__u16 mps;
|
|
|
|
__le16 sport;
|
|
|
|
struct delayed_work retrans_work;
|
|
struct delayed_work monitor_work;
|
|
struct delayed_work ack_work;
|
|
struct work_struct tx_work;
|
|
struct sk_buff_head tx_queue;
|
|
struct sk_buff_head srej_queue;
|
|
struct l2cap_seq_list srej_list;
|
|
struct l2cap_seq_list retrans_list;
|
|
struct hci_conn *ampcon;
|
|
struct hci_chan *ampchan;
|
|
struct l2cap_conn *conn;
|
|
struct l2cap_conf_prm local_conf;
|
|
struct l2cap_conf_prm remote_conf;
|
|
struct l2cap_conf_ext_fs local_fs;
|
|
struct l2cap_conf_ext_fs remote_fs;
|
|
struct sock *next_c;
|
|
struct sock *prev_c;
|
|
};
|
|
|
|
#define L2CAP_CONF_REQ_SENT 0x0001
|
|
#define L2CAP_CONF_INPUT_DONE 0x0002
|
|
#define L2CAP_CONF_OUTPUT_DONE 0x0004
|
|
#define L2CAP_CONF_MTU_DONE 0x0008
|
|
#define L2CAP_CONF_MODE_DONE 0x0010
|
|
#define L2CAP_CONF_CONNECT_PEND 0x0020
|
|
#define L2CAP_CONF_NO_FCS_RECV 0x0040
|
|
#define L2CAP_CONF_STATE2_DEVICE 0x0080
|
|
#define L2CAP_CONF_EXT_WIN_RECV 0x0100
|
|
#define L2CAP_CONF_LOCKSTEP 0x0200
|
|
#define L2CAP_CONF_LOCKSTEP_PEND 0x0400
|
|
#define L2CAP_CONF_PEND_SENT 0x0800
|
|
#define L2CAP_CONF_EFS_RECV 0x1000
|
|
|
|
#define L2CAP_CONF_MAX_CONF_REQ 2
|
|
#define L2CAP_CONF_MAX_CONF_RSP 2
|
|
|
|
#define L2CAP_RECONF_NONE 0x00
|
|
#define L2CAP_RECONF_INT 0x01
|
|
#define L2CAP_RECONF_ACC 0x02
|
|
|
|
#define L2CAP_CONN_SREJ_ACT 0x01
|
|
#define L2CAP_CONN_REJ_ACT 0x02
|
|
#define L2CAP_CONN_REMOTE_BUSY 0x04
|
|
#define L2CAP_CONN_LOCAL_BUSY 0x08
|
|
#define L2CAP_CONN_SEND_FBIT 0x10
|
|
#define L2CAP_CONN_SENT_RNR 0x20
|
|
|
|
#define L2CAP_SEQ_LIST_CLEAR 0xFFFF
|
|
#define L2CAP_SEQ_LIST_TAIL 0x8000
|
|
|
|
#define L2CAP_ERTM_TX_STATE_XMIT 0x01
|
|
#define L2CAP_ERTM_TX_STATE_WAIT_F 0x02
|
|
|
|
#define L2CAP_ERTM_RX_STATE_RECV 0x01
|
|
#define L2CAP_ERTM_RX_STATE_SREJ_SENT 0x02
|
|
#define L2CAP_ERTM_RX_STATE_AMP_MOVE 0x03
|
|
#define L2CAP_ERTM_RX_STATE_WAIT_P_FLAG 0x04
|
|
#define L2CAP_ERTM_RX_STATE_WAIT_P_FLAG_RECONFIGURE 0x05
|
|
#define L2CAP_ERTM_RX_STATE_WAIT_F_FLAG 0x06
|
|
|
|
#define L2CAP_ERTM_TXSEQ_EXPECTED 0x00
|
|
#define L2CAP_ERTM_TXSEQ_EXPECTED_SREJ 0x01
|
|
#define L2CAP_ERTM_TXSEQ_UNEXPECTED 0x02
|
|
#define L2CAP_ERTM_TXSEQ_UNEXPECTED_SREJ 0x03
|
|
#define L2CAP_ERTM_TXSEQ_DUPLICATE 0x04
|
|
#define L2CAP_ERTM_TXSEQ_DUPLICATE_SREJ 0x05
|
|
#define L2CAP_ERTM_TXSEQ_INVALID 0x06
|
|
#define L2CAP_ERTM_TXSEQ_INVALID_IGNORE 0x07
|
|
|
|
#define L2CAP_ERTM_EVENT_DATA_REQUEST 0x01
|
|
#define L2CAP_ERTM_EVENT_LOCAL_BUSY_DETECTED 0x02
|
|
#define L2CAP_ERTM_EVENT_LOCAL_BUSY_CLEAR 0x03
|
|
#define L2CAP_ERTM_EVENT_RECV_REQSEQ_AND_FBIT 0x04
|
|
#define L2CAP_ERTM_EVENT_RECV_FBIT 0x05
|
|
#define L2CAP_ERTM_EVENT_RETRANS_TIMER_EXPIRES 0x06
|
|
#define L2CAP_ERTM_EVENT_MONITOR_TIMER_EXPIRES 0x07
|
|
#define L2CAP_ERTM_EVENT_EXPLICIT_POLL 0x08
|
|
#define L2CAP_ERTM_EVENT_RECV_IFRAME 0x09
|
|
#define L2CAP_ERTM_EVENT_RECV_RR 0x0a
|
|
#define L2CAP_ERTM_EVENT_RECV_REJ 0x0b
|
|
#define L2CAP_ERTM_EVENT_RECV_RNR 0x0c
|
|
#define L2CAP_ERTM_EVENT_RECV_SREJ 0x0d
|
|
#define L2CAP_ERTM_EVENT_RECV_FRAME 0x0e
|
|
|
|
#define L2CAP_AMP_MOVE_NONE 0
|
|
#define L2CAP_AMP_MOVE_INITIATOR 1
|
|
#define L2CAP_AMP_MOVE_RESPONDER 2
|
|
|
|
#define L2CAP_AMP_STATE_STABLE 0
|
|
#define L2CAP_AMP_STATE_WAIT_CREATE 1
|
|
#define L2CAP_AMP_STATE_WAIT_CREATE_RSP 2
|
|
#define L2CAP_AMP_STATE_WAIT_MOVE 3
|
|
#define L2CAP_AMP_STATE_WAIT_MOVE_RSP 4
|
|
#define L2CAP_AMP_STATE_WAIT_MOVE_RSP_SUCCESS 5
|
|
#define L2CAP_AMP_STATE_WAIT_MOVE_CONFIRM 6
|
|
#define L2CAP_AMP_STATE_WAIT_MOVE_CONFIRM_RSP 7
|
|
#define L2CAP_AMP_STATE_WAIT_LOGICAL_COMPLETE 8
|
|
#define L2CAP_AMP_STATE_WAIT_LOGICAL_CONFIRM 9
|
|
#define L2CAP_AMP_STATE_WAIT_LOCAL_BUSY 10
|
|
#define L2CAP_AMP_STATE_WAIT_PREPARE 11
|
|
#define L2CAP_AMP_STATE_RESEGMENT 12
|
|
|
|
#define L2CAP_ATT_ERROR 0x01
|
|
#define L2CAP_ATT_MTU_REQ 0x02
|
|
#define L2CAP_ATT_MTU_RSP 0x03
|
|
#define L2CAP_ATT_RESPONSE_BIT 0x01
|
|
#define L2CAP_ATT_INDICATE 0x1D
|
|
#define L2CAP_ATT_CONFIRM 0x1E
|
|
#define L2CAP_ATT_NOT_SUPPORTED 0x06
|
|
|
|
#define __delta_seq(x, y, pi) ((x) >= (y) ? (x) - (y) : \
|
|
(pi)->tx_win_max + 1 - (y) + (x))
|
|
#define __next_seq(x, pi) ((x + 1) & ((pi)->tx_win_max))
|
|
|
|
extern bool disable_ertm;
|
|
extern const struct proto_ops l2cap_sock_ops;
|
|
extern struct bt_sock_list l2cap_sk_list;
|
|
|
|
int l2cap_init_sockets(void);
|
|
void l2cap_cleanup_sockets(void);
|
|
|
|
u8 l2cap_get_ident(struct l2cap_conn *conn);
|
|
void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data);
|
|
int l2cap_build_conf_req(struct sock *sk, void *data);
|
|
int __l2cap_wait_ack(struct sock *sk);
|
|
|
|
struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, size_t len);
|
|
struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *msg, size_t len);
|
|
struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg,
|
|
size_t len, u16 sdulen, int reseg);
|
|
int l2cap_segment_sdu(struct sock *sk, struct sk_buff_head* seg_queue,
|
|
struct msghdr *msg, size_t len, int reseg);
|
|
int l2cap_resegment_queue(struct sock *sk, struct sk_buff_head *queue);
|
|
void l2cap_do_send(struct sock *sk, struct sk_buff *skb);
|
|
void l2cap_streaming_send(struct sock *sk);
|
|
int l2cap_ertm_send(struct sock *sk);
|
|
int l2cap_strm_tx(struct sock *sk, struct sk_buff_head *skbs);
|
|
int l2cap_ertm_tx(struct sock *sk, struct bt_l2cap_control *control,
|
|
struct sk_buff_head *skbs, u8 event);
|
|
|
|
int l2cap_sock_le_params_valid(struct bt_le_params *le_params);
|
|
void l2cap_sock_set_timer(struct sock *sk, long timeout);
|
|
void l2cap_sock_clear_timer(struct sock *sk);
|
|
void __l2cap_sock_close(struct sock *sk, int reason);
|
|
void l2cap_sock_kill(struct sock *sk);
|
|
void l2cap_sock_init(struct sock *sk, struct sock *parent);
|
|
struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
|
|
int proto, gfp_t prio);
|
|
struct sock *l2cap_find_sock_by_fixed_cid_and_dir(__le16 cid, bdaddr_t *src,
|
|
bdaddr_t *dst, int server);
|
|
void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err);
|
|
void l2cap_chan_del(struct sock *sk, int err);
|
|
int l2cap_do_connect(struct sock *sk);
|
|
int l2cap_data_channel(struct sock *sk, struct sk_buff *skb);
|
|
void l2cap_amp_move_init(struct sock *sk);
|
|
void l2cap_ertm_destruct(struct sock *sk);
|
|
void l2cap_ertm_shutdown(struct sock *sk);
|
|
void l2cap_ertm_recv_done(struct sock *sk);
|
|
|
|
void l2cap_fixed_channel_config(struct sock *sk, struct l2cap_options *opt);
|
|
|
|
void l2cap_recv_deferred_frame(struct sock *sk, struct sk_buff *skb);
|
|
|
|
void l2cap_amp_physical_complete(int result, u8 remote_id, u8 local_id,
|
|
struct sock *sk);
|
|
|
|
void l2cap_amp_logical_complete(int result, struct hci_conn *ampcon,
|
|
struct hci_chan *ampchan, struct sock *sk);
|
|
|
|
void l2cap_amp_logical_destroyed(struct hci_conn *ampcon);
|
|
|
|
#endif /* __L2CAP_H */
|