Andrei Emeltchenko | be21871 | 2010-12-01 16:58:26 +0200 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | BlueZ - Bluetooth protocol stack for Linux |
| 3 | Copyright (C) 2000-2001 Qualcomm Incorporated |
Gustavo F. Padovan | ce5706b | 2010-07-13 11:57:11 -0300 | [diff] [blame] | 4 | Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org> |
Gustavo F. Padovan | 5d8868f | 2010-07-16 16:18:39 -0300 | [diff] [blame] | 5 | Copyright (C) 2010 Google Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | |
| 7 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License version 2 as |
| 11 | published by the Free Software Foundation; |
| 12 | |
| 13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 14 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
| 16 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
Andrei Emeltchenko | be21871 | 2010-12-01 16:58:26 +0200 | [diff] [blame] | 17 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
| 18 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 19 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 21 | |
Andrei Emeltchenko | be21871 | 2010-12-01 16:58:26 +0200 | [diff] [blame] | 22 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
| 23 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | SOFTWARE IS DISCLAIMED. |
| 25 | */ |
| 26 | |
| 27 | #ifndef __L2CAP_H |
| 28 | #define __L2CAP_H |
| 29 | |
Andrei Emeltchenko | 88843ab | 2011-10-17 12:19:56 +0300 | [diff] [blame] | 30 | #include <asm/unaligned.h> |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | /* L2CAP defaults */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 33 | #define L2CAP_DEFAULT_MTU 672 |
Gustavo F. Padovan | f2fcfcd | 2009-07-04 15:06:24 -0300 | [diff] [blame] | 34 | #define L2CAP_DEFAULT_MIN_MTU 48 |
Andrei Emeltchenko | 8936fa6 | 2012-10-08 11:14:41 +0300 | [diff] [blame] | 35 | #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF |
| 36 | #define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 37 | #define L2CAP_DEFAULT_TX_WINDOW 63 |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 38 | #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 39 | #define L2CAP_DEFAULT_MAX_TX 3 |
Mat Martineau | fa23556 | 2010-08-05 15:54:20 -0700 | [diff] [blame] | 40 | #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */ |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 41 | #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */ |
Andrei Emeltchenko | 0b4558e | 2012-10-05 16:56:58 +0300 | [diff] [blame] | 42 | #define L2CAP_DEFAULT_MAX_PDU_SIZE 1492 /* Sized for AMP packet */ |
Gustavo F. Padovan | c1b4f43 | 2010-05-01 16:15:39 -0300 | [diff] [blame] | 43 | #define L2CAP_DEFAULT_ACK_TO 200 |
Andrei Emeltchenko | 8f7975b | 2011-10-13 16:18:54 +0300 | [diff] [blame] | 44 | #define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF |
| 45 | #define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF |
| 46 | #define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF |
Mat Martineau | 94122bb | 2012-05-02 09:42:02 -0700 | [diff] [blame] | 47 | #define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */ |
Andre Guedes | 8c3a4f0 | 2012-05-31 17:01:35 -0300 | [diff] [blame] | 48 | #define L2CAP_LE_MIN_MTU 23 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Marcel Holtmann | ba13ccd | 2012-03-01 14:25:33 -0800 | [diff] [blame] | 50 | #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100) |
| 51 | #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000) |
| 52 | #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000) |
| 53 | #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000) |
| 54 | #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000) |
Mat Martineau | 5b155ef | 2012-10-23 15:24:14 -0700 | [diff] [blame] | 55 | #define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000) |
| 56 | #define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
Andrei Emeltchenko | 466f800 | 2012-05-29 13:59:01 +0300 | [diff] [blame] | 58 | #define L2CAP_A2MP_DEFAULT_MTU 670 |
| 59 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | /* L2CAP socket address */ |
| 61 | struct sockaddr_l2 { |
| 62 | sa_family_t l2_family; |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 63 | __le16 l2_psm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | bdaddr_t l2_bdaddr; |
Marcel Holtmann | f29972d | 2009-02-12 05:07:45 +0100 | [diff] [blame] | 65 | __le16 l2_cid; |
Andre Guedes | 43ef0b8 | 2012-04-24 21:02:52 -0300 | [diff] [blame] | 66 | __u8 l2_bdaddr_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | }; |
| 68 | |
| 69 | /* L2CAP socket options */ |
| 70 | #define L2CAP_OPTIONS 0x01 |
| 71 | struct l2cap_options { |
| 72 | __u16 omtu; |
| 73 | __u16 imtu; |
| 74 | __u16 flush_to; |
| 75 | __u8 mode; |
Gustavo F. Padovan | fcc203c | 2009-08-20 22:26:02 -0300 | [diff] [blame] | 76 | __u8 fcs; |
Gustavo F. Padovan | 68d7f0c | 2010-05-01 16:15:41 -0300 | [diff] [blame] | 77 | __u8 max_tx; |
Gustavo F. Padovan | 14b5aa7 | 2010-05-01 16:15:40 -0300 | [diff] [blame] | 78 | __u16 txwin_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | #define L2CAP_CONNINFO 0x02 |
| 82 | struct l2cap_conninfo { |
| 83 | __u16 hci_handle; |
| 84 | __u8 dev_class[3]; |
| 85 | }; |
| 86 | |
| 87 | #define L2CAP_LM 0x03 |
| 88 | #define L2CAP_LM_MASTER 0x0001 |
| 89 | #define L2CAP_LM_AUTH 0x0002 |
| 90 | #define L2CAP_LM_ENCRYPT 0x0004 |
| 91 | #define L2CAP_LM_TRUSTED 0x0008 |
| 92 | #define L2CAP_LM_RELIABLE 0x0010 |
| 93 | #define L2CAP_LM_SECURE 0x0020 |
| 94 | |
| 95 | /* L2CAP command codes */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 96 | #define L2CAP_COMMAND_REJ 0x01 |
| 97 | #define L2CAP_CONN_REQ 0x02 |
| 98 | #define L2CAP_CONN_RSP 0x03 |
| 99 | #define L2CAP_CONF_REQ 0x04 |
| 100 | #define L2CAP_CONF_RSP 0x05 |
| 101 | #define L2CAP_DISCONN_REQ 0x06 |
| 102 | #define L2CAP_DISCONN_RSP 0x07 |
| 103 | #define L2CAP_ECHO_REQ 0x08 |
| 104 | #define L2CAP_ECHO_RSP 0x09 |
| 105 | #define L2CAP_INFO_REQ 0x0a |
| 106 | #define L2CAP_INFO_RSP 0x0b |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 107 | #define L2CAP_CREATE_CHAN_REQ 0x0c |
| 108 | #define L2CAP_CREATE_CHAN_RSP 0x0d |
| 109 | #define L2CAP_MOVE_CHAN_REQ 0x0e |
| 110 | #define L2CAP_MOVE_CHAN_RSP 0x0f |
| 111 | #define L2CAP_MOVE_CHAN_CFM 0x10 |
| 112 | #define L2CAP_MOVE_CHAN_CFM_RSP 0x11 |
Claudio Takahasi | 3300d9a | 2011-02-11 19:28:54 -0200 | [diff] [blame] | 113 | #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 |
| 114 | #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 115 | |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 116 | /* L2CAP extended feature mask */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 117 | #define L2CAP_FEAT_FLOWCTL 0x00000001 |
| 118 | #define L2CAP_FEAT_RETRANS 0x00000002 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 119 | #define L2CAP_FEAT_BIDIR_QOS 0x00000004 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 120 | #define L2CAP_FEAT_ERTM 0x00000008 |
| 121 | #define L2CAP_FEAT_STREAMING 0x00000010 |
| 122 | #define L2CAP_FEAT_FCS 0x00000020 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 123 | #define L2CAP_FEAT_EXT_FLOW 0x00000040 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 124 | #define L2CAP_FEAT_FIXED_CHAN 0x00000080 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 125 | #define L2CAP_FEAT_EXT_WINDOW 0x00000100 |
| 126 | #define L2CAP_FEAT_UCD 0x00000200 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 127 | |
| 128 | /* L2CAP checksum option */ |
| 129 | #define L2CAP_FCS_NONE 0x00 |
| 130 | #define L2CAP_FCS_CRC16 0x01 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Mat Martineau | d835ac0 | 2011-11-02 16:18:33 -0700 | [diff] [blame] | 132 | /* L2CAP fixed channels */ |
| 133 | #define L2CAP_FC_L2CAP 0x02 |
Marcel Holtmann | d40bffb | 2013-10-12 08:18:18 -0700 | [diff] [blame] | 134 | #define L2CAP_FC_CONNLESS 0x04 |
Mat Martineau | d835ac0 | 2011-11-02 16:18:33 -0700 | [diff] [blame] | 135 | #define L2CAP_FC_A2MP 0x08 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 136 | |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 137 | /* L2CAP Control Field bit masks */ |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 138 | #define L2CAP_CTRL_SAR 0xC000 |
| 139 | #define L2CAP_CTRL_REQSEQ 0x3F00 |
| 140 | #define L2CAP_CTRL_TXSEQ 0x007E |
| 141 | #define L2CAP_CTRL_SUPERVISE 0x000C |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 142 | |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 143 | #define L2CAP_CTRL_RETRANS 0x0080 |
| 144 | #define L2CAP_CTRL_FINAL 0x0080 |
| 145 | #define L2CAP_CTRL_POLL 0x0010 |
| 146 | #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ |
| 147 | |
| 148 | #define L2CAP_CTRL_TXSEQ_SHIFT 1 |
| 149 | #define L2CAP_CTRL_SUPER_SHIFT 2 |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 150 | #define L2CAP_CTRL_POLL_SHIFT 4 |
| 151 | #define L2CAP_CTRL_FINAL_SHIFT 7 |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 152 | #define L2CAP_CTRL_REQSEQ_SHIFT 8 |
| 153 | #define L2CAP_CTRL_SAR_SHIFT 14 |
| 154 | |
| 155 | /* L2CAP Extended Control Field bit mask */ |
| 156 | #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 |
| 157 | #define L2CAP_EXT_CTRL_SAR 0x00030000 |
| 158 | #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 |
| 159 | #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC |
| 160 | |
| 161 | #define L2CAP_EXT_CTRL_POLL 0x00040000 |
| 162 | #define L2CAP_EXT_CTRL_FINAL 0x00000002 |
| 163 | #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ |
| 164 | |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 165 | #define L2CAP_EXT_CTRL_FINAL_SHIFT 1 |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 166 | #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 |
| 167 | #define L2CAP_EXT_CTRL_SAR_SHIFT 16 |
| 168 | #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 169 | #define L2CAP_EXT_CTRL_POLL_SHIFT 18 |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 170 | #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 171 | |
| 172 | /* L2CAP Supervisory Function */ |
Andrei Emeltchenko | ab784b7 | 2011-10-11 13:37:44 +0300 | [diff] [blame] | 173 | #define L2CAP_SUPER_RR 0x00 |
| 174 | #define L2CAP_SUPER_REJ 0x01 |
| 175 | #define L2CAP_SUPER_RNR 0x02 |
| 176 | #define L2CAP_SUPER_SREJ 0x03 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 177 | |
| 178 | /* L2CAP Segmentation and Reassembly */ |
Andrei Emeltchenko | 7e0ef6e | 2011-10-11 13:37:45 +0300 | [diff] [blame] | 179 | #define L2CAP_SAR_UNSEGMENTED 0x00 |
| 180 | #define L2CAP_SAR_START 0x01 |
| 181 | #define L2CAP_SAR_END 0x02 |
| 182 | #define L2CAP_SAR_CONTINUE 0x03 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 183 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 184 | /* L2CAP Command rej. reasons */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 185 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
| 186 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 |
| 187 | #define L2CAP_REJ_INVALID_CID 0x0002 |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 188 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | /* L2CAP structures */ |
| 190 | struct l2cap_hdr { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 191 | __le16 len; |
| 192 | __le16 cid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 193 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | #define L2CAP_HDR_SIZE 4 |
Andrei Emeltchenko | d43cb28 | 2011-10-11 13:37:54 +0300 | [diff] [blame] | 195 | #define L2CAP_ENH_HDR_SIZE 6 |
| 196 | #define L2CAP_EXT_HDR_SIZE 8 |
| 197 | |
| 198 | #define L2CAP_FCS_SIZE 2 |
| 199 | #define L2CAP_SDULEN_SIZE 2 |
| 200 | #define L2CAP_PSMLEN_SIZE 2 |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 201 | #define L2CAP_ENH_CTRL_SIZE 2 |
| 202 | #define L2CAP_EXT_CTRL_SIZE 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | |
| 204 | struct l2cap_cmd_hdr { |
| 205 | __u8 code; |
| 206 | __u8 ident; |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 207 | __le16 len; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 208 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | #define L2CAP_CMD_HDR_SIZE 4 |
| 210 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 211 | struct l2cap_cmd_rej_unk { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 212 | __le16 reason; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 213 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 215 | struct l2cap_cmd_rej_mtu { |
| 216 | __le16 reason; |
| 217 | __le16 max_mtu; |
| 218 | } __packed; |
| 219 | |
| 220 | struct l2cap_cmd_rej_cid { |
| 221 | __le16 reason; |
| 222 | __le16 scid; |
| 223 | __le16 dcid; |
| 224 | } __packed; |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | struct l2cap_conn_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 227 | __le16 psm; |
| 228 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 229 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
| 231 | struct l2cap_conn_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 232 | __le16 dcid; |
| 233 | __le16 scid; |
| 234 | __le16 result; |
| 235 | __le16 status; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 236 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Andrei Emeltchenko | 2983fd6 | 2012-05-24 15:42:50 +0300 | [diff] [blame] | 238 | /* protocol/service multiplexer (PSM) */ |
| 239 | #define L2CAP_PSM_SDP 0x0001 |
| 240 | #define L2CAP_PSM_RFCOMM 0x0003 |
Marcel Holtmann | 3124b84 | 2013-10-12 07:19:32 -0700 | [diff] [blame] | 241 | #define L2CAP_PSM_3DSP 0x0021 |
Andrei Emeltchenko | 2983fd6 | 2012-05-24 15:42:50 +0300 | [diff] [blame] | 242 | |
Maxime Jayat | 3f79410 | 2013-10-12 01:29:46 +0200 | [diff] [blame] | 243 | /* channel identifier */ |
Gustavo F. Padovan | 8db4dc4 | 2009-04-20 01:31:05 -0300 | [diff] [blame] | 244 | #define L2CAP_CID_SIGNALING 0x0001 |
| 245 | #define L2CAP_CID_CONN_LESS 0x0002 |
Andrei Emeltchenko | 466f800 | 2012-05-29 13:59:01 +0300 | [diff] [blame] | 246 | #define L2CAP_CID_A2MP 0x0003 |
Johan Hedberg | 073d1cf | 2013-04-29 19:35:35 +0300 | [diff] [blame] | 247 | #define L2CAP_CID_ATT 0x0004 |
Ville Tervo | acd7d37 | 2011-02-10 22:38:49 -0300 | [diff] [blame] | 248 | #define L2CAP_CID_LE_SIGNALING 0x0005 |
| 249 | #define L2CAP_CID_SMP 0x0006 |
Gustavo F. Padovan | 8db4dc4 | 2009-04-20 01:31:05 -0300 | [diff] [blame] | 250 | #define L2CAP_CID_DYN_START 0x0040 |
| 251 | #define L2CAP_CID_DYN_END 0xffff |
| 252 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 253 | /* connect/create channel results */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 254 | #define L2CAP_CR_SUCCESS 0x0000 |
| 255 | #define L2CAP_CR_PEND 0x0001 |
| 256 | #define L2CAP_CR_BAD_PSM 0x0002 |
| 257 | #define L2CAP_CR_SEC_BLOCK 0x0003 |
| 258 | #define L2CAP_CR_NO_MEM 0x0004 |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 259 | #define L2CAP_CR_BAD_AMP 0x0005 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 261 | /* connect/create channel status */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 262 | #define L2CAP_CS_NO_INFO 0x0000 |
| 263 | #define L2CAP_CS_AUTHEN_PEND 0x0001 |
| 264 | #define L2CAP_CS_AUTHOR_PEND 0x0002 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | struct l2cap_conf_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 267 | __le16 dcid; |
| 268 | __le16 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 270 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | |
| 272 | struct l2cap_conf_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 273 | __le16 scid; |
| 274 | __le16 flags; |
| 275 | __le16 result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 277 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
Marcel Holtmann | 5dee9e7 | 2007-05-24 14:27:19 +0200 | [diff] [blame] | 279 | #define L2CAP_CONF_SUCCESS 0x0000 |
| 280 | #define L2CAP_CONF_UNACCEPT 0x0001 |
| 281 | #define L2CAP_CONF_REJECT 0x0002 |
| 282 | #define L2CAP_CONF_UNKNOWN 0x0003 |
Andrei Emeltchenko | 0e8b207 | 2011-10-17 14:35:32 +0300 | [diff] [blame] | 283 | #define L2CAP_CONF_PENDING 0x0004 |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 284 | #define L2CAP_CONF_EFS_REJECT 0x0005 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | |
Andrei Emeltchenko | 59e54bd | 2012-05-23 15:44:06 +0300 | [diff] [blame] | 286 | /* configuration req/rsp continuation flag */ |
| 287 | #define L2CAP_CONF_FLAG_CONTINUATION 0x0001 |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | struct l2cap_conf_opt { |
| 290 | __u8 type; |
| 291 | __u8 len; |
| 292 | __u8 val[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 293 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | #define L2CAP_CONF_OPT_SIZE 2 |
| 295 | |
Gustavo F. Padovan | 589d274 | 2009-04-20 01:31:07 -0300 | [diff] [blame] | 296 | #define L2CAP_CONF_HINT 0x80 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 297 | #define L2CAP_CONF_MASK 0x7f |
Gustavo F. Padovan | 589d274 | 2009-04-20 01:31:07 -0300 | [diff] [blame] | 298 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | #define L2CAP_CONF_MTU 0x01 |
| 300 | #define L2CAP_CONF_FLUSH_TO 0x02 |
| 301 | #define L2CAP_CONF_QOS 0x03 |
| 302 | #define L2CAP_CONF_RFC 0x04 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 303 | #define L2CAP_CONF_FCS 0x05 |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 304 | #define L2CAP_CONF_EFS 0x06 |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 305 | #define L2CAP_CONF_EWS 0x07 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
| 307 | #define L2CAP_CONF_MAX_SIZE 22 |
| 308 | |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 309 | struct l2cap_conf_rfc { |
| 310 | __u8 mode; |
| 311 | __u8 txwin_size; |
| 312 | __u8 max_transmit; |
| 313 | __le16 retrans_timeout; |
| 314 | __le16 monitor_timeout; |
| 315 | __le16 max_pdu_size; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 316 | } __packed; |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 317 | |
| 318 | #define L2CAP_MODE_BASIC 0x00 |
| 319 | #define L2CAP_MODE_RETRANS 0x01 |
| 320 | #define L2CAP_MODE_FLOWCTL 0x02 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 321 | #define L2CAP_MODE_ERTM 0x03 |
Marcel Holtmann | c6b03cf | 2009-05-02 22:31:10 -0700 | [diff] [blame] | 322 | #define L2CAP_MODE_STREAMING 0x04 |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 323 | |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 324 | struct l2cap_conf_efs { |
| 325 | __u8 id; |
| 326 | __u8 stype; |
| 327 | __le16 msdu; |
| 328 | __le32 sdu_itime; |
| 329 | __le32 acc_lat; |
| 330 | __le32 flush_to; |
| 331 | } __packed; |
| 332 | |
Andrei Emeltchenko | 8f7975b | 2011-10-13 16:18:54 +0300 | [diff] [blame] | 333 | #define L2CAP_SERV_NOTRAFIC 0x00 |
| 334 | #define L2CAP_SERV_BESTEFFORT 0x01 |
| 335 | #define L2CAP_SERV_GUARANTEED 0x02 |
| 336 | |
| 337 | #define L2CAP_BESTEFFORT_ID 0x01 |
| 338 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | struct l2cap_disconn_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 340 | __le16 dcid; |
| 341 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 342 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
| 344 | struct l2cap_disconn_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 345 | __le16 dcid; |
| 346 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 347 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | |
| 349 | struct l2cap_info_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 350 | __le16 type; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 351 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
| 353 | struct l2cap_info_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 354 | __le16 type; |
| 355 | __le16 result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 357 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 359 | struct l2cap_create_chan_req { |
| 360 | __le16 psm; |
| 361 | __le16 scid; |
| 362 | __u8 amp_id; |
| 363 | } __packed; |
| 364 | |
| 365 | struct l2cap_create_chan_rsp { |
| 366 | __le16 dcid; |
| 367 | __le16 scid; |
| 368 | __le16 result; |
| 369 | __le16 status; |
| 370 | } __packed; |
| 371 | |
| 372 | struct l2cap_move_chan_req { |
| 373 | __le16 icid; |
| 374 | __u8 dest_amp_id; |
| 375 | } __packed; |
| 376 | |
| 377 | struct l2cap_move_chan_rsp { |
| 378 | __le16 icid; |
| 379 | __le16 result; |
| 380 | } __packed; |
| 381 | |
| 382 | #define L2CAP_MR_SUCCESS 0x0000 |
| 383 | #define L2CAP_MR_PEND 0x0001 |
| 384 | #define L2CAP_MR_BAD_ID 0x0002 |
| 385 | #define L2CAP_MR_SAME_ID 0x0003 |
| 386 | #define L2CAP_MR_NOT_SUPP 0x0004 |
| 387 | #define L2CAP_MR_COLLISION 0x0005 |
| 388 | #define L2CAP_MR_NOT_ALLOWED 0x0006 |
| 389 | |
| 390 | struct l2cap_move_chan_cfm { |
| 391 | __le16 icid; |
| 392 | __le16 result; |
| 393 | } __packed; |
| 394 | |
| 395 | #define L2CAP_MC_CONFIRMED 0x0000 |
| 396 | #define L2CAP_MC_UNCONFIRMED 0x0001 |
| 397 | |
| 398 | struct l2cap_move_chan_cfm_rsp { |
| 399 | __le16 icid; |
| 400 | } __packed; |
| 401 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | /* info type */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 403 | #define L2CAP_IT_CL_MTU 0x0001 |
| 404 | #define L2CAP_IT_FEAT_MASK 0x0002 |
| 405 | #define L2CAP_IT_FIXED_CHAN 0x0003 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
| 407 | /* info result */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 408 | #define L2CAP_IR_SUCCESS 0x0000 |
| 409 | #define L2CAP_IR_NOTSUPP 0x0001 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
Claudio Takahasi | de73115 | 2011-02-11 19:28:55 -0200 | [diff] [blame] | 411 | struct l2cap_conn_param_update_req { |
| 412 | __le16 min; |
| 413 | __le16 max; |
| 414 | __le16 latency; |
| 415 | __le16 to_multiplier; |
| 416 | } __packed; |
| 417 | |
| 418 | struct l2cap_conn_param_update_rsp { |
| 419 | __le16 result; |
| 420 | } __packed; |
| 421 | |
| 422 | /* Connection Parameters result */ |
| 423 | #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 |
| 424 | #define L2CAP_CONN_PARAM_REJECTED 0x0001 |
| 425 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 426 | /* ----- L2CAP channels and connections ----- */ |
Mat Martineau | 3c58819 | 2012-04-11 10:48:42 -0700 | [diff] [blame] | 427 | struct l2cap_seq_list { |
| 428 | __u16 head; |
| 429 | __u16 tail; |
| 430 | __u16 mask; |
| 431 | __u16 *list; |
| 432 | }; |
| 433 | |
| 434 | #define L2CAP_SEQ_LIST_CLEAR 0xFFFF |
| 435 | #define L2CAP_SEQ_LIST_TAIL 0x8000 |
| 436 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 437 | struct l2cap_chan { |
Gustavo F. Padovan | 8c1d787 | 2011-04-13 20:23:55 -0300 | [diff] [blame] | 438 | struct l2cap_conn *conn; |
Mat Martineau | 0833328 | 2012-10-23 15:24:06 -0700 | [diff] [blame] | 439 | struct hci_conn *hs_hcon; |
| 440 | struct hci_chan *hs_hchan; |
Syam Sidhardhan | 144ad33 | 2012-07-27 23:51:21 +0530 | [diff] [blame] | 441 | struct kref kref; |
Gustavo F. Padovan | 8c1d787 | 2011-04-13 20:23:55 -0300 | [diff] [blame] | 442 | |
Gustavo F. Padovan | 89bc500 | 2011-06-03 00:19:47 -0300 | [diff] [blame] | 443 | __u8 state; |
| 444 | |
Marcel Holtmann | 7eafc59 | 2013-10-13 08:12:47 -0700 | [diff] [blame] | 445 | bdaddr_t dst; |
Marcel Holtmann | 4f1654e | 2013-10-13 08:50:41 -0700 | [diff] [blame] | 446 | __u8 dst_type; |
Marcel Holtmann | 7eafc59 | 2013-10-13 08:12:47 -0700 | [diff] [blame] | 447 | bdaddr_t src; |
Marcel Holtmann | 4f1654e | 2013-10-13 08:50:41 -0700 | [diff] [blame] | 448 | __u8 src_type; |
Gustavo F. Padovan | fe4128e | 2011-04-13 19:50:45 -0300 | [diff] [blame] | 449 | __le16 psm; |
Marcel Holtmann | 4f1654e | 2013-10-13 08:50:41 -0700 | [diff] [blame] | 450 | __le16 sport; |
Gustavo F. Padovan | fe4128e | 2011-04-13 19:50:45 -0300 | [diff] [blame] | 451 | __u16 dcid; |
| 452 | __u16 scid; |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 453 | |
Gustavo F. Padovan | 0c1bc5c | 2011-04-13 17:20:49 -0300 | [diff] [blame] | 454 | __u16 imtu; |
| 455 | __u16 omtu; |
| 456 | __u16 flush_to; |
| 457 | __u8 mode; |
Gustavo F. Padovan | 715ec00 | 2011-05-02 17:13:55 -0300 | [diff] [blame] | 458 | __u8 chan_type; |
Mat Martineau | 2ea6648 | 2011-11-02 16:18:30 -0700 | [diff] [blame] | 459 | __u8 chan_policy; |
Gustavo F. Padovan | 0c1bc5c | 2011-04-13 17:20:49 -0300 | [diff] [blame] | 460 | |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 461 | __u8 sec_level; |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 462 | |
Gustavo F. Padovan | fc7f8a7 | 2011-03-25 13:59:37 -0300 | [diff] [blame] | 463 | __u8 ident; |
| 464 | |
Gustavo F. Padovan | 73ffa90 | 2011-03-25 14:16:54 -0300 | [diff] [blame] | 465 | __u8 conf_req[64]; |
| 466 | __u8 conf_len; |
| 467 | __u8 num_conf_req; |
| 468 | __u8 num_conf_rsp; |
| 469 | |
Gustavo F. Padovan | 47d1ec6 | 2011-04-13 15:57:03 -0300 | [diff] [blame] | 470 | __u8 fcs; |
| 471 | |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 472 | __u16 tx_win; |
Andrei Emeltchenko | 836be93 | 2011-10-17 12:19:57 +0300 | [diff] [blame] | 473 | __u16 tx_win_max; |
Mat Martineau | c20f8e3 | 2012-07-10 05:47:07 -0700 | [diff] [blame] | 474 | __u16 ack_win; |
Gustavo F. Padovan | 47d1ec6 | 2011-04-13 15:57:03 -0300 | [diff] [blame] | 475 | __u8 max_tx; |
| 476 | __u16 retrans_timeout; |
| 477 | __u16 monitor_timeout; |
| 478 | __u16 mps; |
| 479 | |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 480 | __u8 tx_state; |
| 481 | __u8 rx_state; |
| 482 | |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 483 | unsigned long conf_state; |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 484 | unsigned long conn_state; |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 485 | unsigned long flags; |
Gustavo F. Padovan | 525cd18 | 2011-03-25 19:43:39 -0300 | [diff] [blame] | 486 | |
Andrei Emeltchenko | fffadc0 | 2012-11-01 15:37:03 +0200 | [diff] [blame] | 487 | __u8 remote_amp_id; |
Mat Martineau | 0833328 | 2012-10-23 15:24:06 -0700 | [diff] [blame] | 488 | __u8 local_amp_id; |
| 489 | __u8 move_id; |
| 490 | __u8 move_state; |
| 491 | __u8 move_role; |
| 492 | |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 493 | __u16 next_tx_seq; |
| 494 | __u16 expected_ack_seq; |
| 495 | __u16 expected_tx_seq; |
Andrei Emeltchenko | 0b209fa | 2011-10-11 13:37:46 +0300 | [diff] [blame] | 496 | __u16 buffer_seq; |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 497 | __u16 srej_save_reqseq; |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 498 | __u16 last_acked_seq; |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 499 | __u16 frames_sent; |
| 500 | __u16 unacked_frames; |
Gustavo F. Padovan | 6a02661 | 2011-04-01 00:38:50 -0300 | [diff] [blame] | 501 | __u8 retry_count; |
Gustavo F. Padovan | 6f61fd47 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 502 | __u16 sdu_len; |
Gustavo F. Padovan | 6f61fd47 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 503 | struct sk_buff *sdu; |
Mat Martineau | 84084a3 | 2011-07-22 14:54:00 -0700 | [diff] [blame] | 504 | struct sk_buff *sdu_last_frag; |
Gustavo F. Padovan | 6f61fd47 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 505 | |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 506 | __u16 remote_tx_win; |
Gustavo F. Padovan | 2c03a7a | 2011-03-25 20:15:28 -0300 | [diff] [blame] | 507 | __u8 remote_max_tx; |
| 508 | __u16 remote_mps; |
Gustavo F. Padovan | 42e5c80 | 2011-03-25 19:58:34 -0300 | [diff] [blame] | 509 | |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 510 | __u8 local_id; |
| 511 | __u8 local_stype; |
| 512 | __u16 local_msdu; |
| 513 | __u32 local_sdu_itime; |
| 514 | __u32 local_acc_lat; |
| 515 | __u32 local_flush_to; |
| 516 | |
| 517 | __u8 remote_id; |
| 518 | __u8 remote_stype; |
| 519 | __u16 remote_msdu; |
| 520 | __u32 remote_sdu_itime; |
| 521 | __u32 remote_acc_lat; |
| 522 | __u32 remote_flush_to; |
| 523 | |
Gustavo F. Padovan | 721c418 | 2011-06-23 19:29:58 -0300 | [diff] [blame] | 524 | struct delayed_work chan_timer; |
| 525 | struct delayed_work retrans_timer; |
| 526 | struct delayed_work monitor_timer; |
| 527 | struct delayed_work ack_timer; |
| 528 | |
Gustavo F. Padovan | 58d35f8 | 2011-04-04 16:16:44 -0300 | [diff] [blame] | 529 | struct sk_buff *tx_send_head; |
| 530 | struct sk_buff_head tx_q; |
Gustavo F. Padovan | f1c6775 | 2011-03-25 20:36:10 -0300 | [diff] [blame] | 531 | struct sk_buff_head srej_q; |
Mat Martineau | 3c58819 | 2012-04-11 10:48:42 -0700 | [diff] [blame] | 532 | struct l2cap_seq_list srej_list; |
| 533 | struct l2cap_seq_list retrans_list; |
Gustavo F. Padovan | e92c8e7 | 2011-04-01 00:53:45 -0300 | [diff] [blame] | 534 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 535 | struct list_head list; |
| 536 | struct list_head global_l; |
Gustavo F. Padovan | 80808e4 | 2011-05-16 17:24:37 -0300 | [diff] [blame] | 537 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 538 | void *data; |
| 539 | struct l2cap_ops *ops; |
Andrei Emeltchenko | c03b355 | 2012-02-21 12:54:56 +0200 | [diff] [blame] | 540 | struct mutex lock; |
Gustavo F. Padovan | 80808e4 | 2011-05-16 17:24:37 -0300 | [diff] [blame] | 541 | }; |
| 542 | |
| 543 | struct l2cap_ops { |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 544 | char *name; |
Gustavo F. Padovan | 80808e4 | 2011-05-16 17:24:37 -0300 | [diff] [blame] | 545 | |
Gustavo Padovan | 80b9802 | 2012-05-27 22:27:51 -0300 | [diff] [blame] | 546 | struct l2cap_chan *(*new_connection) (struct l2cap_chan *chan); |
| 547 | int (*recv) (struct l2cap_chan * chan, |
| 548 | struct sk_buff *skb); |
Andrei Emeltchenko | c0df7f6 | 2012-05-27 22:27:52 -0300 | [diff] [blame] | 549 | void (*teardown) (struct l2cap_chan *chan, int err); |
Gustavo Padovan | 80b9802 | 2012-05-27 22:27:51 -0300 | [diff] [blame] | 550 | void (*close) (struct l2cap_chan *chan); |
| 551 | void (*state_change) (struct l2cap_chan *chan, |
Gustavo Padovan | 53f5212 | 2013-10-15 19:24:45 -0300 | [diff] [blame] | 552 | int state, int err); |
Andrei Emeltchenko | 54a59aa | 2012-05-27 22:27:53 -0300 | [diff] [blame] | 553 | void (*ready) (struct l2cap_chan *chan); |
Gustavo Padovan | 2dc4e51 | 2012-10-12 19:35:24 +0800 | [diff] [blame] | 554 | void (*defer) (struct l2cap_chan *chan); |
Marcel Holtmann | d97c899 | 2013-10-14 02:53:54 -0700 | [diff] [blame] | 555 | void (*resume) (struct l2cap_chan *chan); |
Gustavo Padovan | 5ec1bbe | 2013-10-15 19:24:48 -0300 | [diff] [blame] | 556 | void (*set_shutdown) (struct l2cap_chan *chan); |
Gustavo Padovan | 8d836d7 | 2013-10-15 19:24:47 -0300 | [diff] [blame] | 557 | long (*get_sndtimeo) (struct l2cap_chan *chan); |
Andrei Emeltchenko | 2f7719c | 2012-01-20 14:08:03 +0200 | [diff] [blame] | 558 | struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan, |
Gustavo Padovan | 9033894 | 2012-04-06 20:15:47 -0300 | [diff] [blame] | 559 | unsigned long len, int nb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | }; |
| 561 | |
| 562 | struct l2cap_conn { |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 563 | struct hci_conn *hcon; |
| 564 | struct hci_chan *hchan; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 566 | unsigned int mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 568 | __u32 feat_mask; |
| 569 | __u8 fixed_chan_mask; |
Marcel Holtmann | 848566b | 2013-10-01 22:59:22 -0700 | [diff] [blame] | 570 | bool hs_enabled; |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 571 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 572 | __u8 info_state; |
| 573 | __u8 info_ident; |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 574 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 575 | struct delayed_work info_timer; |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 576 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 577 | spinlock_t lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 579 | struct sk_buff *rx_skb; |
| 580 | __u32 rx_len; |
| 581 | __u8 tx_ident; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 583 | __u8 disc_reason; |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 584 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 585 | struct delayed_work security_timer; |
| 586 | struct smp_chan *smp_chan; |
Vinicius Costa Gomes | 5d3de7d | 2011-06-14 13:37:41 -0300 | [diff] [blame] | 587 | |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 588 | struct list_head chan_l; |
| 589 | struct mutex chan_lock; |
David Herrmann | 9c903e3 | 2013-04-06 20:28:44 +0200 | [diff] [blame] | 590 | struct kref ref; |
David Herrmann | 2c8e141 | 2013-04-06 20:28:45 +0200 | [diff] [blame] | 591 | struct list_head users; |
| 592 | }; |
| 593 | |
| 594 | struct l2cap_user { |
| 595 | struct list_head list; |
| 596 | int (*probe) (struct l2cap_conn *conn, struct l2cap_user *user); |
| 597 | void (*remove) (struct l2cap_conn *conn, struct l2cap_user *user); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | }; |
| 599 | |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 600 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
Marcel Holtmann | 984947d | 2009-02-06 23:35:19 +0100 | [diff] [blame] | 601 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
| 602 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 603 | |
Gustavo F. Padovan | 715ec00 | 2011-05-02 17:13:55 -0300 | [diff] [blame] | 604 | #define L2CAP_CHAN_RAW 1 |
| 605 | #define L2CAP_CHAN_CONN_LESS 2 |
| 606 | #define L2CAP_CHAN_CONN_ORIENTED 3 |
Andrei Emeltchenko | 416fa75 | 2012-05-29 13:59:16 +0300 | [diff] [blame] | 607 | #define L2CAP_CHAN_CONN_FIX_A2MP 4 |
Gustavo F. Padovan | 715ec00 | 2011-05-02 17:13:55 -0300 | [diff] [blame] | 608 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 609 | /* ----- L2CAP socket info ----- */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) |
| 611 | |
| 612 | struct l2cap_pinfo { |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 613 | struct bt_sock bt; |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 614 | struct l2cap_chan *chan; |
Gustavo F. Padovan | f64b993 | 2012-03-06 23:48:33 -0300 | [diff] [blame] | 615 | struct sk_buff *rx_busy_skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | }; |
| 617 | |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 618 | enum { |
| 619 | CONF_REQ_SENT, |
| 620 | CONF_INPUT_DONE, |
| 621 | CONF_OUTPUT_DONE, |
| 622 | CONF_MTU_DONE, |
| 623 | CONF_MODE_DONE, |
| 624 | CONF_CONNECT_PEND, |
Andrei Emeltchenko | f2592d3 | 2012-11-29 17:46:08 +0200 | [diff] [blame] | 625 | CONF_RECV_NO_FCS, |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 626 | CONF_STATE2_DEVICE, |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 627 | CONF_EWS_RECV, |
Andrei Emeltchenko | 0e8b207 | 2011-10-17 14:35:32 +0300 | [diff] [blame] | 628 | CONF_LOC_CONF_PEND, |
| 629 | CONF_REM_CONF_PEND, |
Mat Martineau | 2827011 | 2012-05-17 21:14:09 -0700 | [diff] [blame] | 630 | CONF_NOT_COMPLETE, |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 631 | }; |
Marcel Holtmann | 861d688 | 2007-10-20 13:37:06 +0200 | [diff] [blame] | 632 | |
Gustavo F. Padovan | f2fcfcd | 2009-07-04 15:06:24 -0300 | [diff] [blame] | 633 | #define L2CAP_CONF_MAX_CONF_REQ 2 |
| 634 | #define L2CAP_CONF_MAX_CONF_RSP 2 |
| 635 | |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 636 | enum { |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 637 | CONN_SREJ_SENT, |
| 638 | CONN_WAIT_F, |
| 639 | CONN_SREJ_ACT, |
| 640 | CONN_SEND_PBIT, |
| 641 | CONN_REMOTE_BUSY, |
| 642 | CONN_LOCAL_BUSY, |
| 643 | CONN_REJ_ACT, |
| 644 | CONN_SEND_FBIT, |
| 645 | CONN_RNR_SENT, |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 646 | }; |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 647 | |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 648 | /* Definitions for flags in l2cap_chan */ |
| 649 | enum { |
Andrei Emeltchenko | 43bd0f3 | 2011-10-11 14:04:34 +0300 | [diff] [blame] | 650 | FLAG_ROLE_SWITCH, |
Andrei Emeltchenko | 15770b1 | 2011-10-11 14:04:33 +0300 | [diff] [blame] | 651 | FLAG_FORCE_ACTIVE, |
Andrei Emeltchenko | ecf61bd | 2011-10-11 14:04:32 +0300 | [diff] [blame] | 652 | FLAG_FORCE_RELIABLE, |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 653 | FLAG_FLUSHABLE, |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 654 | FLAG_EXT_CTRL, |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 655 | FLAG_EFS_ENABLE, |
Marcel Holtmann | bdc2578 | 2013-10-14 02:45:34 -0700 | [diff] [blame] | 656 | FLAG_DEFER_SETUP, |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 657 | }; |
| 658 | |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 659 | enum { |
| 660 | L2CAP_TX_STATE_XMIT, |
| 661 | L2CAP_TX_STATE_WAIT_F, |
| 662 | }; |
| 663 | |
| 664 | enum { |
| 665 | L2CAP_RX_STATE_RECV, |
| 666 | L2CAP_RX_STATE_SREJ_SENT, |
Mat Martineau | 0833328 | 2012-10-23 15:24:06 -0700 | [diff] [blame] | 667 | L2CAP_RX_STATE_MOVE, |
| 668 | L2CAP_RX_STATE_WAIT_P, |
| 669 | L2CAP_RX_STATE_WAIT_F, |
Mat Martineau | d5f7ac3 | 2012-03-23 16:56:55 -0700 | [diff] [blame] | 670 | }; |
| 671 | |
| 672 | enum { |
| 673 | L2CAP_TXSEQ_EXPECTED, |
| 674 | L2CAP_TXSEQ_EXPECTED_SREJ, |
| 675 | L2CAP_TXSEQ_UNEXPECTED, |
| 676 | L2CAP_TXSEQ_UNEXPECTED_SREJ, |
| 677 | L2CAP_TXSEQ_DUPLICATE, |
| 678 | L2CAP_TXSEQ_DUPLICATE_SREJ, |
| 679 | L2CAP_TXSEQ_INVALID, |
| 680 | L2CAP_TXSEQ_INVALID_IGNORE, |
| 681 | }; |
| 682 | |
| 683 | enum { |
| 684 | L2CAP_EV_DATA_REQUEST, |
| 685 | L2CAP_EV_LOCAL_BUSY_DETECTED, |
| 686 | L2CAP_EV_LOCAL_BUSY_CLEAR, |
| 687 | L2CAP_EV_RECV_REQSEQ_AND_FBIT, |
| 688 | L2CAP_EV_RECV_FBIT, |
| 689 | L2CAP_EV_RETRANS_TO, |
| 690 | L2CAP_EV_MONITOR_TO, |
| 691 | L2CAP_EV_EXPLICIT_POLL, |
| 692 | L2CAP_EV_RECV_IFRAME, |
| 693 | L2CAP_EV_RECV_RR, |
| 694 | L2CAP_EV_RECV_REJ, |
| 695 | L2CAP_EV_RECV_RNR, |
| 696 | L2CAP_EV_RECV_SREJ, |
| 697 | L2CAP_EV_RECV_FRAME, |
| 698 | }; |
| 699 | |
Mat Martineau | 0833328 | 2012-10-23 15:24:06 -0700 | [diff] [blame] | 700 | enum { |
| 701 | L2CAP_MOVE_ROLE_NONE, |
| 702 | L2CAP_MOVE_ROLE_INITIATOR, |
| 703 | L2CAP_MOVE_ROLE_RESPONDER, |
| 704 | }; |
| 705 | |
| 706 | enum { |
| 707 | L2CAP_MOVE_STABLE, |
| 708 | L2CAP_MOVE_WAIT_REQ, |
| 709 | L2CAP_MOVE_WAIT_RSP, |
| 710 | L2CAP_MOVE_WAIT_RSP_SUCCESS, |
| 711 | L2CAP_MOVE_WAIT_CONFIRM, |
| 712 | L2CAP_MOVE_WAIT_CONFIRM_RSP, |
| 713 | L2CAP_MOVE_WAIT_LOGICAL_COMP, |
| 714 | L2CAP_MOVE_WAIT_LOGICAL_CFM, |
| 715 | L2CAP_MOVE_WAIT_LOCAL_BUSY, |
| 716 | L2CAP_MOVE_WAIT_PREPARE, |
| 717 | }; |
| 718 | |
Jaganath Kanakkassery | 3064837 | 2012-07-13 18:17:54 +0530 | [diff] [blame] | 719 | void l2cap_chan_hold(struct l2cap_chan *c); |
| 720 | void l2cap_chan_put(struct l2cap_chan *c); |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 721 | |
Andrei Emeltchenko | c03b355 | 2012-02-21 12:54:56 +0200 | [diff] [blame] | 722 | static inline void l2cap_chan_lock(struct l2cap_chan *chan) |
| 723 | { |
| 724 | mutex_lock(&chan->lock); |
| 725 | } |
| 726 | |
| 727 | static inline void l2cap_chan_unlock(struct l2cap_chan *chan) |
| 728 | { |
| 729 | mutex_unlock(&chan->lock); |
| 730 | } |
| 731 | |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 732 | static inline void l2cap_set_timer(struct l2cap_chan *chan, |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 733 | struct delayed_work *work, long timeout) |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 734 | { |
Andrei Emeltchenko | e05dcc3 | 2012-02-17 11:40:56 +0200 | [diff] [blame] | 735 | BT_DBG("chan %p state %s timeout %ld", chan, |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 736 | state_to_string(chan->state), timeout); |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 737 | |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 738 | /* If delayed work cancelled do not hold(chan) |
| 739 | since it is already done with previous set_timer */ |
Ulisses Furquim | 17cd3f3 | 2012-01-30 18:26:28 -0200 | [diff] [blame] | 740 | if (!cancel_delayed_work(work)) |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 741 | l2cap_chan_hold(chan); |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 742 | |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 743 | schedule_delayed_work(work, timeout); |
| 744 | } |
| 745 | |
Szymon Janc | 75b93b5 | 2012-01-11 10:59:45 +0100 | [diff] [blame] | 746 | static inline bool l2cap_clear_timer(struct l2cap_chan *chan, |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 747 | struct delayed_work *work) |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 748 | { |
Szymon Janc | 75b93b5 | 2012-01-11 10:59:45 +0100 | [diff] [blame] | 749 | bool ret; |
| 750 | |
Andrei Emeltchenko | 6f74b6f | 2012-03-23 16:31:50 +0200 | [diff] [blame] | 751 | /* put(chan) if delayed work cancelled otherwise it |
| 752 | is done in delayed work function */ |
Ulisses Furquim | 17cd3f3 | 2012-01-30 18:26:28 -0200 | [diff] [blame] | 753 | ret = cancel_delayed_work(work); |
Szymon Janc | 75b93b5 | 2012-01-11 10:59:45 +0100 | [diff] [blame] | 754 | if (ret) |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 755 | l2cap_chan_put(chan); |
Szymon Janc | 75b93b5 | 2012-01-11 10:59:45 +0100 | [diff] [blame] | 756 | |
| 757 | return ret; |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 758 | } |
| 759 | |
Gustavo F. Padovan | c9b6667 | 2011-05-17 14:59:01 -0300 | [diff] [blame] | 760 | #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t)) |
| 761 | #define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer) |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 762 | #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer) |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 763 | #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer) |
| 764 | #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \ |
Andrzej Kaczmarek | b83ddfe | 2012-01-04 12:10:42 +0100 | [diff] [blame] | 765 | msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO)); |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 766 | #define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer) |
Gustavo F. Padovan | c74e560 | 2009-08-20 22:25:58 -0300 | [diff] [blame] | 767 | |
Andrei Emeltchenko | 836be93 | 2011-10-17 12:19:57 +0300 | [diff] [blame] | 768 | static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) |
| 769 | { |
Mat Martineau | 5a364bd | 2012-04-25 16:36:12 -0700 | [diff] [blame] | 770 | if (seq1 >= seq2) |
| 771 | return seq1 - seq2; |
| 772 | else |
| 773 | return chan->tx_win_max + 1 - seq2 + seq1; |
Andrei Emeltchenko | 836be93 | 2011-10-17 12:19:57 +0300 | [diff] [blame] | 774 | } |
| 775 | |
| 776 | static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) |
| 777 | { |
| 778 | return (seq + 1) % (chan->tx_win_max + 1); |
| 779 | } |
| 780 | |
Gustavo Padovan | 7e1af8a | 2012-05-29 13:19:26 -0300 | [diff] [blame] | 781 | static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan *chan) |
| 782 | { |
| 783 | return NULL; |
| 784 | } |
| 785 | |
| 786 | static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err) |
| 787 | { |
| 788 | } |
| 789 | |
| 790 | static inline void l2cap_chan_no_ready(struct l2cap_chan *chan) |
| 791 | { |
| 792 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
Gustavo Padovan | 2dc4e51 | 2012-10-12 19:35:24 +0800 | [diff] [blame] | 794 | static inline void l2cap_chan_no_defer(struct l2cap_chan *chan) |
| 795 | { |
| 796 | } |
| 797 | |
Marcel Holtmann | 2ce5fb5 | 2013-10-15 16:47:11 -0700 | [diff] [blame] | 798 | static inline void l2cap_chan_no_resume(struct l2cap_chan *chan) |
| 799 | { |
| 800 | } |
| 801 | |
Gustavo Padovan | 5ec1bbe | 2013-10-15 19:24:48 -0300 | [diff] [blame] | 802 | static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan) |
| 803 | { |
| 804 | } |
| 805 | |
Gustavo Padovan | 8d836d7 | 2013-10-15 19:24:47 -0300 | [diff] [blame] | 806 | static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan) |
| 807 | { |
| 808 | return 0; |
| 809 | } |
| 810 | |
Rusty Russell | eb93992 | 2011-12-19 14:08:01 +0000 | [diff] [blame] | 811 | extern bool disable_ertm; |
Gustavo F. Padovan | bb58f74 | 2011-02-03 20:50:35 -0200 | [diff] [blame] | 812 | |
| 813 | int l2cap_init_sockets(void); |
| 814 | void l2cap_cleanup_sockets(void); |
David Herrmann | b3916db | 2013-04-05 14:57:34 +0200 | [diff] [blame] | 815 | bool l2cap_is_socket(struct socket *sock); |
Gustavo F. Padovan | bb58f74 | 2011-02-03 20:50:35 -0200 | [diff] [blame] | 816 | |
Gustavo F. Padovan | 8c1d787 | 2011-04-13 20:23:55 -0300 | [diff] [blame] | 817 | void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); |
Gustavo F. Padovan | 6898325 | 2011-02-04 03:02:31 -0200 | [diff] [blame] | 818 | |
Gustavo F. Padovan | 9e4425f | 2011-04-18 18:38:43 -0300 | [diff] [blame] | 819 | int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); |
| 820 | int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); |
| 821 | |
Gustavo Padovan | eef1d9b | 2012-03-25 13:59:16 -0300 | [diff] [blame] | 822 | struct l2cap_chan *l2cap_chan_create(void); |
Gustavo F. Padovan | 0f85272 | 2011-05-04 19:42:50 -0300 | [diff] [blame] | 823 | void l2cap_chan_close(struct l2cap_chan *chan, int reason); |
Johan Hedberg | cbe8fed | 2012-01-08 22:51:16 +0200 | [diff] [blame] | 824 | int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, |
Andre Guedes | 8e9f989 | 2012-04-24 21:02:55 -0300 | [diff] [blame] | 825 | bdaddr_t *dst, u8 dst_type); |
Luiz Augusto von Dentz | 5e59b79 | 2011-11-01 10:58:57 +0200 | [diff] [blame] | 826 | int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, |
| 827 | u32 priority); |
Mat Martineau | e328140 | 2011-07-07 09:39:02 -0700 | [diff] [blame] | 828 | void l2cap_chan_busy(struct l2cap_chan *chan, int busy); |
Gustavo F. Padovan | d45fc42 | 2011-11-05 19:54:24 -0200 | [diff] [blame] | 829 | int l2cap_chan_check_security(struct l2cap_chan *chan); |
Andrei Emeltchenko | bd4b165 | 2012-03-28 16:31:25 +0300 | [diff] [blame] | 830 | void l2cap_chan_set_defaults(struct l2cap_chan *chan); |
Andrei Emeltchenko | 466f800 | 2012-05-29 13:59:01 +0300 | [diff] [blame] | 831 | int l2cap_ertm_init(struct l2cap_chan *chan); |
| 832 | void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); |
Andrei Emeltchenko | 93c3e8f | 2012-09-27 17:26:16 +0300 | [diff] [blame] | 833 | void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); |
Andrei Emeltchenko | 466f800 | 2012-05-29 13:59:01 +0300 | [diff] [blame] | 834 | void l2cap_chan_del(struct l2cap_chan *chan, int err); |
Andrei Emeltchenko | 2766be4 | 2012-09-27 17:26:21 +0300 | [diff] [blame] | 835 | void l2cap_send_conn_req(struct l2cap_chan *chan); |
Mat Martineau | 3f7a56c | 2012-10-23 15:24:23 -0700 | [diff] [blame] | 836 | void l2cap_move_start(struct l2cap_chan *chan); |
Andrei Emeltchenko | 27695fb | 2012-10-25 15:20:45 +0300 | [diff] [blame] | 837 | void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, |
| 838 | u8 status); |
Andrei Emeltchenko | a514b17 | 2012-11-14 17:39:30 +0200 | [diff] [blame] | 839 | void __l2cap_physical_cfm(struct l2cap_chan *chan, int result); |
Gustavo F. Padovan | bb58f74 | 2011-02-03 20:50:35 -0200 | [diff] [blame] | 840 | |
David Herrmann | 9c903e3 | 2013-04-06 20:28:44 +0200 | [diff] [blame] | 841 | void l2cap_conn_get(struct l2cap_conn *conn); |
| 842 | void l2cap_conn_put(struct l2cap_conn *conn); |
| 843 | |
David Herrmann | 2c8e141 | 2013-04-06 20:28:45 +0200 | [diff] [blame] | 844 | int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user); |
| 845 | void l2cap_unregister_user(struct l2cap_conn *conn, struct l2cap_user *user); |
| 846 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | #endif /* __L2CAP_H */ |