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 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 35 | #define L2CAP_DEFAULT_FLUSH_TO 0xffff |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 36 | #define L2CAP_DEFAULT_TX_WINDOW 63 |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 37 | #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 38 | #define L2CAP_DEFAULT_MAX_TX 3 |
Mat Martineau | fa23556 | 2010-08-05 15:54:20 -0700 | [diff] [blame] | 39 | #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */ |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 40 | #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */ |
Mat Martineau | db12d64 | 2010-08-05 15:54:27 -0700 | [diff] [blame] | 41 | #define L2CAP_DEFAULT_MAX_PDU_SIZE 1009 /* Sized for 3-DH5 packet */ |
Gustavo F. Padovan | c1b4f43 | 2010-05-01 16:15:39 -0300 | [diff] [blame] | 42 | #define L2CAP_DEFAULT_ACK_TO 200 |
Ville Tervo | b62f328 | 2011-02-10 22:38:50 -0300 | [diff] [blame] | 43 | #define L2CAP_LE_DEFAULT_MTU 23 |
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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
Andrzej Kaczmarek | f3f668b | 2011-11-07 17:19:04 -0200 | [diff] [blame] | 48 | #define L2CAP_DISC_TIMEOUT (100) |
| 49 | #define L2CAP_DISC_REJ_TIMEOUT (5000) /* 5 seconds */ |
| 50 | #define L2CAP_ENC_TIMEOUT (5000) /* 5 seconds */ |
| 51 | #define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */ |
| 52 | #define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* L2CAP socket address */ |
| 55 | struct sockaddr_l2 { |
| 56 | sa_family_t l2_family; |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 57 | __le16 l2_psm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | bdaddr_t l2_bdaddr; |
Marcel Holtmann | f29972d | 2009-02-12 05:07:45 +0100 | [diff] [blame] | 59 | __le16 l2_cid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | /* L2CAP socket options */ |
| 63 | #define L2CAP_OPTIONS 0x01 |
| 64 | struct l2cap_options { |
| 65 | __u16 omtu; |
| 66 | __u16 imtu; |
| 67 | __u16 flush_to; |
| 68 | __u8 mode; |
Gustavo F. Padovan | fcc203c | 2009-08-20 22:26:02 -0300 | [diff] [blame] | 69 | __u8 fcs; |
Gustavo F. Padovan | 68d7f0c | 2010-05-01 16:15:41 -0300 | [diff] [blame] | 70 | __u8 max_tx; |
Gustavo F. Padovan | 14b5aa7 | 2010-05-01 16:15:40 -0300 | [diff] [blame] | 71 | __u16 txwin_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | }; |
| 73 | |
| 74 | #define L2CAP_CONNINFO 0x02 |
| 75 | struct l2cap_conninfo { |
| 76 | __u16 hci_handle; |
| 77 | __u8 dev_class[3]; |
| 78 | }; |
| 79 | |
| 80 | #define L2CAP_LM 0x03 |
| 81 | #define L2CAP_LM_MASTER 0x0001 |
| 82 | #define L2CAP_LM_AUTH 0x0002 |
| 83 | #define L2CAP_LM_ENCRYPT 0x0004 |
| 84 | #define L2CAP_LM_TRUSTED 0x0008 |
| 85 | #define L2CAP_LM_RELIABLE 0x0010 |
| 86 | #define L2CAP_LM_SECURE 0x0020 |
| 87 | |
| 88 | /* L2CAP command codes */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 89 | #define L2CAP_COMMAND_REJ 0x01 |
| 90 | #define L2CAP_CONN_REQ 0x02 |
| 91 | #define L2CAP_CONN_RSP 0x03 |
| 92 | #define L2CAP_CONF_REQ 0x04 |
| 93 | #define L2CAP_CONF_RSP 0x05 |
| 94 | #define L2CAP_DISCONN_REQ 0x06 |
| 95 | #define L2CAP_DISCONN_RSP 0x07 |
| 96 | #define L2CAP_ECHO_REQ 0x08 |
| 97 | #define L2CAP_ECHO_RSP 0x09 |
| 98 | #define L2CAP_INFO_REQ 0x0a |
| 99 | #define L2CAP_INFO_RSP 0x0b |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 100 | #define L2CAP_CREATE_CHAN_REQ 0x0c |
| 101 | #define L2CAP_CREATE_CHAN_RSP 0x0d |
| 102 | #define L2CAP_MOVE_CHAN_REQ 0x0e |
| 103 | #define L2CAP_MOVE_CHAN_RSP 0x0f |
| 104 | #define L2CAP_MOVE_CHAN_CFM 0x10 |
| 105 | #define L2CAP_MOVE_CHAN_CFM_RSP 0x11 |
Claudio Takahasi | 3300d9a | 2011-02-11 19:28:54 -0200 | [diff] [blame] | 106 | #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 |
| 107 | #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 108 | |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 109 | /* L2CAP extended feature mask */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 110 | #define L2CAP_FEAT_FLOWCTL 0x00000001 |
| 111 | #define L2CAP_FEAT_RETRANS 0x00000002 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 112 | #define L2CAP_FEAT_BIDIR_QOS 0x00000004 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 113 | #define L2CAP_FEAT_ERTM 0x00000008 |
| 114 | #define L2CAP_FEAT_STREAMING 0x00000010 |
| 115 | #define L2CAP_FEAT_FCS 0x00000020 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 116 | #define L2CAP_FEAT_EXT_FLOW 0x00000040 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 117 | #define L2CAP_FEAT_FIXED_CHAN 0x00000080 |
Andrei Emeltchenko | a858393 | 2011-09-16 16:26:30 +0300 | [diff] [blame] | 118 | #define L2CAP_FEAT_EXT_WINDOW 0x00000100 |
| 119 | #define L2CAP_FEAT_UCD 0x00000200 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 120 | |
| 121 | /* L2CAP checksum option */ |
| 122 | #define L2CAP_FCS_NONE 0x00 |
| 123 | #define L2CAP_FCS_CRC16 0x01 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
Mat Martineau | d835ac0 | 2011-11-02 16:18:33 -0700 | [diff] [blame] | 125 | /* L2CAP fixed channels */ |
| 126 | #define L2CAP_FC_L2CAP 0x02 |
| 127 | #define L2CAP_FC_A2MP 0x08 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 128 | |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 129 | /* L2CAP Control Field bit masks */ |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 130 | #define L2CAP_CTRL_SAR 0xC000 |
| 131 | #define L2CAP_CTRL_REQSEQ 0x3F00 |
| 132 | #define L2CAP_CTRL_TXSEQ 0x007E |
| 133 | #define L2CAP_CTRL_SUPERVISE 0x000C |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 134 | |
Andrei Emeltchenko | 57253fd | 2011-10-11 13:37:43 +0300 | [diff] [blame] | 135 | #define L2CAP_CTRL_RETRANS 0x0080 |
| 136 | #define L2CAP_CTRL_FINAL 0x0080 |
| 137 | #define L2CAP_CTRL_POLL 0x0010 |
| 138 | #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ |
| 139 | |
| 140 | #define L2CAP_CTRL_TXSEQ_SHIFT 1 |
| 141 | #define L2CAP_CTRL_SUPER_SHIFT 2 |
| 142 | #define L2CAP_CTRL_REQSEQ_SHIFT 8 |
| 143 | #define L2CAP_CTRL_SAR_SHIFT 14 |
| 144 | |
| 145 | /* L2CAP Extended Control Field bit mask */ |
| 146 | #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 |
| 147 | #define L2CAP_EXT_CTRL_SAR 0x00030000 |
| 148 | #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 |
| 149 | #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC |
| 150 | |
| 151 | #define L2CAP_EXT_CTRL_POLL 0x00040000 |
| 152 | #define L2CAP_EXT_CTRL_FINAL 0x00000002 |
| 153 | #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ |
| 154 | |
| 155 | #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 |
| 156 | #define L2CAP_EXT_CTRL_SAR_SHIFT 16 |
| 157 | #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 |
| 158 | #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 159 | |
| 160 | /* L2CAP Supervisory Function */ |
Andrei Emeltchenko | ab784b7 | 2011-10-11 13:37:44 +0300 | [diff] [blame] | 161 | #define L2CAP_SUPER_RR 0x00 |
| 162 | #define L2CAP_SUPER_REJ 0x01 |
| 163 | #define L2CAP_SUPER_RNR 0x02 |
| 164 | #define L2CAP_SUPER_SREJ 0x03 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 165 | |
| 166 | /* L2CAP Segmentation and Reassembly */ |
Andrei Emeltchenko | 7e0ef6e | 2011-10-11 13:37:45 +0300 | [diff] [blame] | 167 | #define L2CAP_SAR_UNSEGMENTED 0x00 |
| 168 | #define L2CAP_SAR_START 0x01 |
| 169 | #define L2CAP_SAR_END 0x02 |
| 170 | #define L2CAP_SAR_CONTINUE 0x03 |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 171 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 172 | /* L2CAP Command rej. reasons */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 173 | #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 |
| 174 | #define L2CAP_REJ_MTU_EXCEEDED 0x0001 |
| 175 | #define L2CAP_REJ_INVALID_CID 0x0002 |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | /* L2CAP structures */ |
| 178 | struct l2cap_hdr { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 179 | __le16 len; |
| 180 | __le16 cid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 181 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | #define L2CAP_HDR_SIZE 4 |
Andrei Emeltchenko | d43cb28 | 2011-10-11 13:37:54 +0300 | [diff] [blame] | 183 | #define L2CAP_ENH_HDR_SIZE 6 |
| 184 | #define L2CAP_EXT_HDR_SIZE 8 |
| 185 | |
| 186 | #define L2CAP_FCS_SIZE 2 |
| 187 | #define L2CAP_SDULEN_SIZE 2 |
| 188 | #define L2CAP_PSMLEN_SIZE 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
| 190 | struct l2cap_cmd_hdr { |
| 191 | __u8 code; |
| 192 | __u8 ident; |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 193 | __le16 len; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 194 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | #define L2CAP_CMD_HDR_SIZE 4 |
| 196 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 197 | struct l2cap_cmd_rej_unk { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 198 | __le16 reason; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 199 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Ilia Kolomisnky | e2fd318 | 2011-07-10 08:47:44 +0300 | [diff] [blame] | 201 | struct l2cap_cmd_rej_mtu { |
| 202 | __le16 reason; |
| 203 | __le16 max_mtu; |
| 204 | } __packed; |
| 205 | |
| 206 | struct l2cap_cmd_rej_cid { |
| 207 | __le16 reason; |
| 208 | __le16 scid; |
| 209 | __le16 dcid; |
| 210 | } __packed; |
| 211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | struct l2cap_conn_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 213 | __le16 psm; |
| 214 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 215 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | struct l2cap_conn_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 218 | __le16 dcid; |
| 219 | __le16 scid; |
| 220 | __le16 result; |
| 221 | __le16 status; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 222 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | |
Gustavo F. Padovan | 8db4dc4 | 2009-04-20 01:31:05 -0300 | [diff] [blame] | 224 | /* channel indentifier */ |
| 225 | #define L2CAP_CID_SIGNALING 0x0001 |
| 226 | #define L2CAP_CID_CONN_LESS 0x0002 |
Ville Tervo | acd7d37 | 2011-02-10 22:38:49 -0300 | [diff] [blame] | 227 | #define L2CAP_CID_LE_DATA 0x0004 |
| 228 | #define L2CAP_CID_LE_SIGNALING 0x0005 |
| 229 | #define L2CAP_CID_SMP 0x0006 |
Gustavo F. Padovan | 8db4dc4 | 2009-04-20 01:31:05 -0300 | [diff] [blame] | 230 | #define L2CAP_CID_DYN_START 0x0040 |
| 231 | #define L2CAP_CID_DYN_END 0xffff |
| 232 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 233 | /* connect/create channel results */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 234 | #define L2CAP_CR_SUCCESS 0x0000 |
| 235 | #define L2CAP_CR_PEND 0x0001 |
| 236 | #define L2CAP_CR_BAD_PSM 0x0002 |
| 237 | #define L2CAP_CR_SEC_BLOCK 0x0003 |
| 238 | #define L2CAP_CR_NO_MEM 0x0004 |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 239 | #define L2CAP_CR_BAD_AMP 0x0005 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 241 | /* connect/create channel status */ |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 242 | #define L2CAP_CS_NO_INFO 0x0000 |
| 243 | #define L2CAP_CS_AUTHEN_PEND 0x0001 |
| 244 | #define L2CAP_CS_AUTHOR_PEND 0x0002 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
| 246 | struct l2cap_conf_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 247 | __le16 dcid; |
| 248 | __le16 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 250 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | |
| 252 | struct l2cap_conf_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 253 | __le16 scid; |
| 254 | __le16 flags; |
| 255 | __le16 result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 257 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
Marcel Holtmann | 5dee9e7 | 2007-05-24 14:27:19 +0200 | [diff] [blame] | 259 | #define L2CAP_CONF_SUCCESS 0x0000 |
| 260 | #define L2CAP_CONF_UNACCEPT 0x0001 |
| 261 | #define L2CAP_CONF_REJECT 0x0002 |
| 262 | #define L2CAP_CONF_UNKNOWN 0x0003 |
Andrei Emeltchenko | 0e8b207 | 2011-10-17 14:35:32 +0300 | [diff] [blame] | 263 | #define L2CAP_CONF_PENDING 0x0004 |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 264 | #define L2CAP_CONF_EFS_REJECT 0x0005 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | struct l2cap_conf_opt { |
| 267 | __u8 type; |
| 268 | __u8 len; |
| 269 | __u8 val[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 | #define L2CAP_CONF_OPT_SIZE 2 |
| 272 | |
Gustavo F. Padovan | 589d274 | 2009-04-20 01:31:07 -0300 | [diff] [blame] | 273 | #define L2CAP_CONF_HINT 0x80 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 274 | #define L2CAP_CONF_MASK 0x7f |
Gustavo F. Padovan | 589d274 | 2009-04-20 01:31:07 -0300 | [diff] [blame] | 275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | #define L2CAP_CONF_MTU 0x01 |
| 277 | #define L2CAP_CONF_FLUSH_TO 0x02 |
| 278 | #define L2CAP_CONF_QOS 0x03 |
| 279 | #define L2CAP_CONF_RFC 0x04 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 280 | #define L2CAP_CONF_FCS 0x05 |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 281 | #define L2CAP_CONF_EFS 0x06 |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 282 | #define L2CAP_CONF_EWS 0x07 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
| 284 | #define L2CAP_CONF_MAX_SIZE 22 |
| 285 | |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 286 | struct l2cap_conf_rfc { |
| 287 | __u8 mode; |
| 288 | __u8 txwin_size; |
| 289 | __u8 max_transmit; |
| 290 | __le16 retrans_timeout; |
| 291 | __le16 monitor_timeout; |
| 292 | __le16 max_pdu_size; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 293 | } __packed; |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 294 | |
| 295 | #define L2CAP_MODE_BASIC 0x00 |
| 296 | #define L2CAP_MODE_RETRANS 0x01 |
| 297 | #define L2CAP_MODE_FLOWCTL 0x02 |
Marcel Holtmann | 47ec1dcd | 2009-05-02 18:57:55 -0700 | [diff] [blame] | 298 | #define L2CAP_MODE_ERTM 0x03 |
Marcel Holtmann | c6b03cf | 2009-05-02 22:31:10 -0700 | [diff] [blame] | 299 | #define L2CAP_MODE_STREAMING 0x04 |
Marcel Holtmann | 6464f35 | 2007-10-20 13:39:51 +0200 | [diff] [blame] | 300 | |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 301 | struct l2cap_conf_efs { |
| 302 | __u8 id; |
| 303 | __u8 stype; |
| 304 | __le16 msdu; |
| 305 | __le32 sdu_itime; |
| 306 | __le32 acc_lat; |
| 307 | __le32 flush_to; |
| 308 | } __packed; |
| 309 | |
Andrei Emeltchenko | 8f7975b | 2011-10-13 16:18:54 +0300 | [diff] [blame] | 310 | #define L2CAP_SERV_NOTRAFIC 0x00 |
| 311 | #define L2CAP_SERV_BESTEFFORT 0x01 |
| 312 | #define L2CAP_SERV_GUARANTEED 0x02 |
| 313 | |
| 314 | #define L2CAP_BESTEFFORT_ID 0x01 |
| 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | struct l2cap_disconn_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 317 | __le16 dcid; |
| 318 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 319 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
| 321 | struct l2cap_disconn_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 322 | __le16 dcid; |
| 323 | __le16 scid; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 324 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
| 326 | struct l2cap_info_req { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 327 | __le16 type; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 328 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | struct l2cap_info_rsp { |
Al Viro | 8e036fc | 2007-07-29 00:16:36 -0700 | [diff] [blame] | 331 | __le16 type; |
| 332 | __le16 result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | __u8 data[0]; |
Gustavo F. Padovan | 66c853c | 2010-07-19 02:00:13 -0300 | [diff] [blame] | 334 | } __packed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Mat Martineau | 38094c7 | 2011-11-02 16:18:31 -0700 | [diff] [blame] | 336 | struct l2cap_create_chan_req { |
| 337 | __le16 psm; |
| 338 | __le16 scid; |
| 339 | __u8 amp_id; |
| 340 | } __packed; |
| 341 | |
| 342 | struct l2cap_create_chan_rsp { |
| 343 | __le16 dcid; |
| 344 | __le16 scid; |
| 345 | __le16 result; |
| 346 | __le16 status; |
| 347 | } __packed; |
| 348 | |
| 349 | struct l2cap_move_chan_req { |
| 350 | __le16 icid; |
| 351 | __u8 dest_amp_id; |
| 352 | } __packed; |
| 353 | |
| 354 | struct l2cap_move_chan_rsp { |
| 355 | __le16 icid; |
| 356 | __le16 result; |
| 357 | } __packed; |
| 358 | |
| 359 | #define L2CAP_MR_SUCCESS 0x0000 |
| 360 | #define L2CAP_MR_PEND 0x0001 |
| 361 | #define L2CAP_MR_BAD_ID 0x0002 |
| 362 | #define L2CAP_MR_SAME_ID 0x0003 |
| 363 | #define L2CAP_MR_NOT_SUPP 0x0004 |
| 364 | #define L2CAP_MR_COLLISION 0x0005 |
| 365 | #define L2CAP_MR_NOT_ALLOWED 0x0006 |
| 366 | |
| 367 | struct l2cap_move_chan_cfm { |
| 368 | __le16 icid; |
| 369 | __le16 result; |
| 370 | } __packed; |
| 371 | |
| 372 | #define L2CAP_MC_CONFIRMED 0x0000 |
| 373 | #define L2CAP_MC_UNCONFIRMED 0x0001 |
| 374 | |
| 375 | struct l2cap_move_chan_cfm_rsp { |
| 376 | __le16 icid; |
| 377 | } __packed; |
| 378 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | /* info type */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 380 | #define L2CAP_IT_CL_MTU 0x0001 |
| 381 | #define L2CAP_IT_FEAT_MASK 0x0002 |
| 382 | #define L2CAP_IT_FIXED_CHAN 0x0003 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
| 384 | /* info result */ |
Andrei Emeltchenko | 8d6765a | 2011-10-11 13:37:41 +0300 | [diff] [blame] | 385 | #define L2CAP_IR_SUCCESS 0x0000 |
| 386 | #define L2CAP_IR_NOTSUPP 0x0001 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
Claudio Takahasi | de73115 | 2011-02-11 19:28:55 -0200 | [diff] [blame] | 388 | struct l2cap_conn_param_update_req { |
| 389 | __le16 min; |
| 390 | __le16 max; |
| 391 | __le16 latency; |
| 392 | __le16 to_multiplier; |
| 393 | } __packed; |
| 394 | |
| 395 | struct l2cap_conn_param_update_rsp { |
| 396 | __le16 result; |
| 397 | } __packed; |
| 398 | |
| 399 | /* Connection Parameters result */ |
| 400 | #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 |
| 401 | #define L2CAP_CONN_PARAM_REJECTED 0x0001 |
| 402 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 403 | /* ----- L2CAP channels and connections ----- */ |
Gustavo F. Padovan | 39d5a3e | 2011-04-04 15:40:12 -0300 | [diff] [blame] | 404 | struct srej_list { |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 405 | __u16 tx_seq; |
Gustavo F. Padovan | 39d5a3e | 2011-04-04 15:40:12 -0300 | [diff] [blame] | 406 | struct list_head list; |
| 407 | }; |
| 408 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 409 | struct l2cap_chan { |
| 410 | struct sock *sk; |
Gustavo F. Padovan | 8c1d787 | 2011-04-13 20:23:55 -0300 | [diff] [blame] | 411 | |
| 412 | struct l2cap_conn *conn; |
| 413 | |
Gustavo F. Padovan | 89bc500 | 2011-06-03 00:19:47 -0300 | [diff] [blame] | 414 | __u8 state; |
| 415 | |
Gustavo F. Padovan | 71ba0e5 | 2011-05-17 14:34:52 -0300 | [diff] [blame] | 416 | atomic_t refcnt; |
| 417 | |
Gustavo F. Padovan | fe4128e | 2011-04-13 19:50:45 -0300 | [diff] [blame] | 418 | __le16 psm; |
| 419 | __u16 dcid; |
| 420 | __u16 scid; |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 421 | |
Gustavo F. Padovan | 0c1bc5c | 2011-04-13 17:20:49 -0300 | [diff] [blame] | 422 | __u16 imtu; |
| 423 | __u16 omtu; |
| 424 | __u16 flush_to; |
| 425 | __u8 mode; |
Gustavo F. Padovan | 715ec00 | 2011-05-02 17:13:55 -0300 | [diff] [blame] | 426 | __u8 chan_type; |
Mat Martineau | 2ea6648 | 2011-11-02 16:18:30 -0700 | [diff] [blame] | 427 | __u8 chan_policy; |
Gustavo F. Padovan | 0c1bc5c | 2011-04-13 17:20:49 -0300 | [diff] [blame] | 428 | |
| 429 | __le16 sport; |
| 430 | |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 431 | __u8 sec_level; |
Gustavo F. Padovan | 4343478 | 2011-04-12 18:31:57 -0300 | [diff] [blame] | 432 | |
Gustavo F. Padovan | fc7f8a7 | 2011-03-25 13:59:37 -0300 | [diff] [blame] | 433 | __u8 ident; |
| 434 | |
Gustavo F. Padovan | 73ffa90 | 2011-03-25 14:16:54 -0300 | [diff] [blame] | 435 | __u8 conf_req[64]; |
| 436 | __u8 conf_len; |
| 437 | __u8 num_conf_req; |
| 438 | __u8 num_conf_rsp; |
| 439 | |
Gustavo F. Padovan | 47d1ec6 | 2011-04-13 15:57:03 -0300 | [diff] [blame] | 440 | __u8 fcs; |
| 441 | |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 442 | __u16 tx_win; |
Andrei Emeltchenko | 836be93 | 2011-10-17 12:19:57 +0300 | [diff] [blame] | 443 | __u16 tx_win_max; |
Gustavo F. Padovan | 47d1ec6 | 2011-04-13 15:57:03 -0300 | [diff] [blame] | 444 | __u8 max_tx; |
| 445 | __u16 retrans_timeout; |
| 446 | __u16 monitor_timeout; |
| 447 | __u16 mps; |
| 448 | |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 449 | unsigned long conf_state; |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 450 | unsigned long conn_state; |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 451 | unsigned long flags; |
Gustavo F. Padovan | 525cd18 | 2011-03-25 19:43:39 -0300 | [diff] [blame] | 452 | |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 453 | __u16 next_tx_seq; |
| 454 | __u16 expected_ack_seq; |
| 455 | __u16 expected_tx_seq; |
Andrei Emeltchenko | 0b209fa | 2011-10-11 13:37:46 +0300 | [diff] [blame] | 456 | __u16 buffer_seq; |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 457 | __u16 buffer_seq_srej; |
| 458 | __u16 srej_save_reqseq; |
| 459 | __u16 frames_sent; |
| 460 | __u16 unacked_frames; |
Gustavo F. Padovan | 6a02661 | 2011-04-01 00:38:50 -0300 | [diff] [blame] | 461 | __u8 retry_count; |
| 462 | __u8 num_acked; |
Gustavo F. Padovan | 6f61fd4 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 463 | __u16 sdu_len; |
Gustavo F. Padovan | 6f61fd4 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 464 | struct sk_buff *sdu; |
Mat Martineau | 84084a3 | 2011-07-22 14:54:00 -0700 | [diff] [blame] | 465 | struct sk_buff *sdu_last_frag; |
Gustavo F. Padovan | 6f61fd4 | 2011-03-25 20:09:37 -0300 | [diff] [blame] | 466 | |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 467 | __u16 remote_tx_win; |
Gustavo F. Padovan | 2c03a7a | 2011-03-25 20:15:28 -0300 | [diff] [blame] | 468 | __u8 remote_max_tx; |
| 469 | __u16 remote_mps; |
Gustavo F. Padovan | 42e5c80 | 2011-03-25 19:58:34 -0300 | [diff] [blame] | 470 | |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 471 | __u8 local_id; |
| 472 | __u8 local_stype; |
| 473 | __u16 local_msdu; |
| 474 | __u32 local_sdu_itime; |
| 475 | __u32 local_acc_lat; |
| 476 | __u32 local_flush_to; |
| 477 | |
| 478 | __u8 remote_id; |
| 479 | __u8 remote_stype; |
| 480 | __u16 remote_msdu; |
| 481 | __u32 remote_sdu_itime; |
| 482 | __u32 remote_acc_lat; |
| 483 | __u32 remote_flush_to; |
| 484 | |
Gustavo F. Padovan | 721c418 | 2011-06-23 19:29:58 -0300 | [diff] [blame] | 485 | struct delayed_work chan_timer; |
| 486 | struct delayed_work retrans_timer; |
| 487 | struct delayed_work monitor_timer; |
| 488 | struct delayed_work ack_timer; |
| 489 | |
Gustavo F. Padovan | 58d35f8 | 2011-04-04 16:16:44 -0300 | [diff] [blame] | 490 | struct sk_buff *tx_send_head; |
| 491 | struct sk_buff_head tx_q; |
Gustavo F. Padovan | f1c6775 | 2011-03-25 20:36:10 -0300 | [diff] [blame] | 492 | struct sk_buff_head srej_q; |
Gustavo F. Padovan | 39d5a3e | 2011-04-04 15:40:12 -0300 | [diff] [blame] | 493 | struct list_head srej_l; |
Gustavo F. Padovan | e92c8e7 | 2011-04-01 00:53:45 -0300 | [diff] [blame] | 494 | |
Gustavo F. Padovan | baa7e1f | 2011-03-31 16:17:41 -0300 | [diff] [blame] | 495 | struct list_head list; |
Gustavo F. Padovan | 23691d7 | 2011-04-27 18:26:32 -0300 | [diff] [blame] | 496 | struct list_head global_l; |
Gustavo F. Padovan | 80808e4 | 2011-05-16 17:24:37 -0300 | [diff] [blame] | 497 | |
| 498 | void *data; |
| 499 | struct l2cap_ops *ops; |
| 500 | }; |
| 501 | |
| 502 | struct l2cap_ops { |
| 503 | char *name; |
| 504 | |
| 505 | struct l2cap_chan *(*new_connection) (void *data); |
Gustavo F. Padovan | 2307049 | 2011-05-16 17:57:22 -0300 | [diff] [blame] | 506 | int (*recv) (void *data, struct sk_buff *skb); |
Gustavo F. Padovan | ba3bd0e | 2011-05-16 18:23:24 -0300 | [diff] [blame] | 507 | void (*close) (void *data); |
Gustavo F. Padovan | 89bc500 | 2011-06-03 00:19:47 -0300 | [diff] [blame] | 508 | void (*state_change) (void *data, int state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | }; |
| 510 | |
| 511 | struct l2cap_conn { |
| 512 | struct hci_conn *hcon; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 513 | struct hci_chan *hchan; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | |
| 515 | bdaddr_t *dst; |
| 516 | bdaddr_t *src; |
| 517 | |
| 518 | unsigned int mtu; |
| 519 | |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 520 | __u32 feat_mask; |
| 521 | |
| 522 | __u8 info_state; |
| 523 | __u8 info_ident; |
| 524 | |
Gustavo F. Padovan | 030013d | 2011-12-20 10:57:28 -0200 | [diff] [blame] | 525 | struct delayed_work info_timer; |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 526 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | spinlock_t lock; |
| 528 | |
| 529 | struct sk_buff *rx_skb; |
| 530 | __u32 rx_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | __u8 tx_ident; |
| 532 | |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 533 | __u8 disc_reason; |
| 534 | |
Gustavo F. Padovan | 6c9d42a | 2011-12-20 10:57:27 -0200 | [diff] [blame] | 535 | struct delayed_work security_timer; |
Vinicius Costa Gomes | 1c1def0 | 2011-09-05 14:31:30 -0300 | [diff] [blame] | 536 | struct smp_chan *smp_chan; |
Vinicius Costa Gomes | 5d3de7d | 2011-06-14 13:37:41 -0300 | [diff] [blame] | 537 | |
Gustavo F. Padovan | baa7e1f | 2011-03-31 16:17:41 -0300 | [diff] [blame] | 538 | struct list_head chan_l; |
Gustavo F. Padovan | d01b2ff | 2011-12-09 04:45:12 -0200 | [diff] [blame] | 539 | struct mutex chan_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | }; |
| 541 | |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 542 | #define L2CAP_INFO_CL_MTU_REQ_SENT 0x01 |
Marcel Holtmann | 984947d | 2009-02-06 23:35:19 +0100 | [diff] [blame] | 543 | #define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04 |
| 544 | #define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08 |
Marcel Holtmann | 4e8402a | 2007-10-20 13:37:56 +0200 | [diff] [blame] | 545 | |
Gustavo F. Padovan | 715ec00 | 2011-05-02 17:13:55 -0300 | [diff] [blame] | 546 | #define L2CAP_CHAN_RAW 1 |
| 547 | #define L2CAP_CHAN_CONN_LESS 2 |
| 548 | #define L2CAP_CHAN_CONN_ORIENTED 3 |
| 549 | |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 550 | /* ----- L2CAP socket info ----- */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | #define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) |
| 552 | |
| 553 | struct l2cap_pinfo { |
| 554 | struct bt_sock bt; |
Gustavo F. Padovan | 4845407 | 2011-03-25 00:22:30 -0300 | [diff] [blame] | 555 | struct l2cap_chan *chan; |
Mat Martineau | e328140 | 2011-07-07 09:39:02 -0700 | [diff] [blame] | 556 | struct sk_buff *rx_busy_skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | }; |
| 558 | |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 559 | enum { |
| 560 | CONF_REQ_SENT, |
| 561 | CONF_INPUT_DONE, |
| 562 | CONF_OUTPUT_DONE, |
| 563 | CONF_MTU_DONE, |
| 564 | CONF_MODE_DONE, |
| 565 | CONF_CONNECT_PEND, |
| 566 | CONF_NO_FCS_RECV, |
| 567 | CONF_STATE2_DEVICE, |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 568 | CONF_EWS_RECV, |
Andrei Emeltchenko | 0e8b207 | 2011-10-17 14:35:32 +0300 | [diff] [blame] | 569 | CONF_LOC_CONF_PEND, |
| 570 | CONF_REM_CONF_PEND, |
Gustavo F. Padovan | c1360a1 | 2011-06-10 17:02:12 -0300 | [diff] [blame] | 571 | }; |
Marcel Holtmann | 861d688 | 2007-10-20 13:37:06 +0200 | [diff] [blame] | 572 | |
Gustavo F. Padovan | f2fcfcd | 2009-07-04 15:06:24 -0300 | [diff] [blame] | 573 | #define L2CAP_CONF_MAX_CONF_REQ 2 |
| 574 | #define L2CAP_CONF_MAX_CONF_RSP 2 |
| 575 | |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 576 | enum { |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 577 | CONN_SREJ_SENT, |
| 578 | CONN_WAIT_F, |
| 579 | CONN_SREJ_ACT, |
| 580 | CONN_SEND_PBIT, |
| 581 | CONN_REMOTE_BUSY, |
| 582 | CONN_LOCAL_BUSY, |
| 583 | CONN_REJ_ACT, |
| 584 | CONN_SEND_FBIT, |
| 585 | CONN_RNR_SENT, |
Gustavo F. Padovan | e2ab435 | 2011-06-10 21:28:49 -0300 | [diff] [blame] | 586 | }; |
Gustavo F. Padovan | e90bac0 | 2009-08-20 22:26:00 -0300 | [diff] [blame] | 587 | |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 588 | /* Definitions for flags in l2cap_chan */ |
| 589 | enum { |
Andrei Emeltchenko | 43bd0f3 | 2011-10-11 14:04:34 +0300 | [diff] [blame] | 590 | FLAG_ROLE_SWITCH, |
Andrei Emeltchenko | 15770b1 | 2011-10-11 14:04:33 +0300 | [diff] [blame] | 591 | FLAG_FORCE_ACTIVE, |
Andrei Emeltchenko | ecf61bd | 2011-10-11 14:04:32 +0300 | [diff] [blame] | 592 | FLAG_FORCE_RELIABLE, |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 593 | FLAG_FLUSHABLE, |
Andrei Emeltchenko | 6327eb9 | 2011-10-11 13:37:42 +0300 | [diff] [blame] | 594 | FLAG_EXT_CTRL, |
Andrei Emeltchenko | 5a9e705 | 2011-10-13 16:18:53 +0300 | [diff] [blame] | 595 | FLAG_EFS_ENABLE, |
Andrei Emeltchenko | d57b0e8 | 2011-10-11 14:04:31 +0300 | [diff] [blame] | 596 | }; |
| 597 | |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 598 | static inline void l2cap_chan_hold(struct l2cap_chan *c) |
| 599 | { |
| 600 | atomic_inc(&c->refcnt); |
| 601 | } |
| 602 | |
| 603 | static inline void l2cap_chan_put(struct l2cap_chan *c) |
| 604 | { |
| 605 | if (atomic_dec_and_test(&c->refcnt)) |
| 606 | kfree(c); |
| 607 | } |
| 608 | |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 609 | static inline void l2cap_set_timer(struct l2cap_chan *chan, |
| 610 | struct delayed_work *work, long timeout) |
| 611 | { |
| 612 | BT_DBG("chan %p state %d timeout %ld", chan, chan->state, timeout); |
| 613 | |
Ulisses Furquim | 6de3275 | 2012-01-30 18:26:28 -0200 | [diff] [blame^] | 614 | if (!cancel_delayed_work(work)) |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 615 | l2cap_chan_hold(chan); |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 616 | schedule_delayed_work(work, timeout); |
| 617 | } |
| 618 | |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 619 | static inline void l2cap_clear_timer(struct l2cap_chan *chan, |
| 620 | struct delayed_work *work) |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 621 | { |
Ulisses Furquim | 6de3275 | 2012-01-30 18:26:28 -0200 | [diff] [blame^] | 622 | if (cancel_delayed_work(work)) |
Ulisses Furquim | 371fd83 | 2011-12-21 20:02:36 -0200 | [diff] [blame] | 623 | l2cap_chan_put(chan); |
Gustavo F. Padovan | c2ec9c1 | 2011-12-20 10:57:26 -0200 | [diff] [blame] | 624 | } |
| 625 | |
Gustavo F. Padovan | c9b6667 | 2011-05-17 14:59:01 -0300 | [diff] [blame] | 626 | #define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t)) |
| 627 | #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] | 628 | #define __set_retrans_timer(c) l2cap_set_timer(c, &c->retrans_timer, \ |
Andrzej Kaczmarek | 6e1da68 | 2012-01-04 12:10:42 +0100 | [diff] [blame] | 629 | msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO)); |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 630 | #define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer) |
| 631 | #define __set_monitor_timer(c) l2cap_set_timer(c, &c->monitor_timer, \ |
Andrzej Kaczmarek | 6e1da68 | 2012-01-04 12:10:42 +0100 | [diff] [blame] | 632 | msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO)); |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 633 | #define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer) |
| 634 | #define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \ |
Andrzej Kaczmarek | 6e1da68 | 2012-01-04 12:10:42 +0100 | [diff] [blame] | 635 | msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO)); |
Gustavo F. Padovan | 1a09bcb | 2011-05-17 15:13:19 -0300 | [diff] [blame] | 636 | #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] | 637 | |
Andrei Emeltchenko | 836be93 | 2011-10-17 12:19:57 +0300 | [diff] [blame] | 638 | static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) |
| 639 | { |
| 640 | int offset; |
| 641 | |
| 642 | offset = (seq1 - seq2) % (chan->tx_win_max + 1); |
| 643 | if (offset < 0) |
| 644 | offset += (chan->tx_win_max + 1); |
| 645 | |
| 646 | return offset; |
| 647 | } |
| 648 | |
| 649 | static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) |
| 650 | { |
| 651 | return (seq + 1) % (chan->tx_win_max + 1); |
| 652 | } |
| 653 | |
Gustavo F. Padovan | 42e5c80 | 2011-03-25 19:58:34 -0300 | [diff] [blame] | 654 | static inline int l2cap_tx_window_full(struct l2cap_chan *ch) |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 655 | { |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 656 | int sub; |
| 657 | |
Gustavo F. Padovan | 42e5c80 | 2011-03-25 19:58:34 -0300 | [diff] [blame] | 658 | sub = (ch->next_tx_seq - ch->expected_ack_seq) % 64; |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 659 | |
| 660 | if (sub < 0) |
| 661 | sub += 64; |
| 662 | |
Gustavo F. Padovan | 2c03a7a | 2011-03-25 20:15:28 -0300 | [diff] [blame] | 663 | return sub == ch->remote_tx_win; |
Gustavo F. Padovan | 1c2acff | 2009-08-20 22:25:57 -0300 | [diff] [blame] | 664 | } |
| 665 | |
Andrei Emeltchenko | 0b209fa | 2011-10-11 13:37:46 +0300 | [diff] [blame] | 666 | static inline __u16 __get_reqseq(struct l2cap_chan *chan, __u32 ctrl) |
| 667 | { |
| 668 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 669 | return (ctrl & L2CAP_EXT_CTRL_REQSEQ) >> |
| 670 | L2CAP_EXT_CTRL_REQSEQ_SHIFT; |
| 671 | else |
| 672 | return (ctrl & L2CAP_CTRL_REQSEQ) >> L2CAP_CTRL_REQSEQ_SHIFT; |
| 673 | } |
| 674 | |
| 675 | static inline __u32 __set_reqseq(struct l2cap_chan *chan, __u32 reqseq) |
| 676 | { |
| 677 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 678 | return (reqseq << L2CAP_EXT_CTRL_REQSEQ_SHIFT) & |
| 679 | L2CAP_EXT_CTRL_REQSEQ; |
| 680 | else |
| 681 | return (reqseq << L2CAP_CTRL_REQSEQ_SHIFT) & L2CAP_CTRL_REQSEQ; |
| 682 | } |
Andrei Emeltchenko | fb45de7 | 2011-10-11 13:37:47 +0300 | [diff] [blame] | 683 | |
| 684 | static inline __u16 __get_txseq(struct l2cap_chan *chan, __u32 ctrl) |
| 685 | { |
| 686 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 687 | return (ctrl & L2CAP_EXT_CTRL_TXSEQ) >> |
| 688 | L2CAP_EXT_CTRL_TXSEQ_SHIFT; |
| 689 | else |
| 690 | return (ctrl & L2CAP_CTRL_TXSEQ) >> L2CAP_CTRL_TXSEQ_SHIFT; |
| 691 | } |
| 692 | |
| 693 | static inline __u32 __set_txseq(struct l2cap_chan *chan, __u32 txseq) |
| 694 | { |
| 695 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 696 | return (txseq << L2CAP_EXT_CTRL_TXSEQ_SHIFT) & |
| 697 | L2CAP_EXT_CTRL_TXSEQ; |
| 698 | else |
| 699 | return (txseq << L2CAP_CTRL_TXSEQ_SHIFT) & L2CAP_CTRL_TXSEQ; |
| 700 | } |
| 701 | |
Andrei Emeltchenko | 793c2f1 | 2011-10-11 13:37:48 +0300 | [diff] [blame] | 702 | static inline bool __is_sframe(struct l2cap_chan *chan, __u32 ctrl) |
| 703 | { |
| 704 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 705 | return ctrl & L2CAP_EXT_CTRL_FRAME_TYPE; |
| 706 | else |
| 707 | return ctrl & L2CAP_CTRL_FRAME_TYPE; |
| 708 | } |
| 709 | |
| 710 | static inline __u32 __set_sframe(struct l2cap_chan *chan) |
| 711 | { |
| 712 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 713 | return L2CAP_EXT_CTRL_FRAME_TYPE; |
| 714 | else |
| 715 | return L2CAP_CTRL_FRAME_TYPE; |
| 716 | } |
| 717 | |
Andrei Emeltchenko | 7e0ef6e | 2011-10-11 13:37:45 +0300 | [diff] [blame] | 718 | static inline __u8 __get_ctrl_sar(struct l2cap_chan *chan, __u32 ctrl) |
| 719 | { |
| 720 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 721 | return (ctrl & L2CAP_EXT_CTRL_SAR) >> L2CAP_EXT_CTRL_SAR_SHIFT; |
| 722 | else |
| 723 | return (ctrl & L2CAP_CTRL_SAR) >> L2CAP_CTRL_SAR_SHIFT; |
| 724 | } |
| 725 | |
| 726 | static inline __u32 __set_ctrl_sar(struct l2cap_chan *chan, __u32 sar) |
| 727 | { |
| 728 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 729 | return (sar << L2CAP_EXT_CTRL_SAR_SHIFT) & L2CAP_EXT_CTRL_SAR; |
| 730 | else |
| 731 | return (sar << L2CAP_CTRL_SAR_SHIFT) & L2CAP_CTRL_SAR; |
| 732 | } |
| 733 | |
| 734 | static inline bool __is_sar_start(struct l2cap_chan *chan, __u32 ctrl) |
| 735 | { |
| 736 | return __get_ctrl_sar(chan, ctrl) == L2CAP_SAR_START; |
| 737 | } |
| 738 | |
| 739 | static inline __u32 __get_sar_mask(struct l2cap_chan *chan) |
| 740 | { |
| 741 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 742 | return L2CAP_EXT_CTRL_SAR; |
| 743 | else |
| 744 | return L2CAP_CTRL_SAR; |
| 745 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | |
Andrei Emeltchenko | ab784b7 | 2011-10-11 13:37:44 +0300 | [diff] [blame] | 747 | static inline __u8 __get_ctrl_super(struct l2cap_chan *chan, __u32 ctrl) |
| 748 | { |
| 749 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 750 | return (ctrl & L2CAP_EXT_CTRL_SUPERVISE) >> |
| 751 | L2CAP_EXT_CTRL_SUPER_SHIFT; |
| 752 | else |
| 753 | return (ctrl & L2CAP_CTRL_SUPERVISE) >> L2CAP_CTRL_SUPER_SHIFT; |
| 754 | } |
| 755 | |
| 756 | static inline __u32 __set_ctrl_super(struct l2cap_chan *chan, __u32 super) |
| 757 | { |
| 758 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 759 | return (super << L2CAP_EXT_CTRL_SUPER_SHIFT) & |
| 760 | L2CAP_EXT_CTRL_SUPERVISE; |
| 761 | else |
| 762 | return (super << L2CAP_CTRL_SUPER_SHIFT) & |
| 763 | L2CAP_CTRL_SUPERVISE; |
| 764 | } |
| 765 | |
Andrei Emeltchenko | 03f6715 | 2011-10-11 13:37:49 +0300 | [diff] [blame] | 766 | static inline __u32 __set_ctrl_final(struct l2cap_chan *chan) |
| 767 | { |
| 768 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 769 | return L2CAP_EXT_CTRL_FINAL; |
| 770 | else |
| 771 | return L2CAP_CTRL_FINAL; |
| 772 | } |
| 773 | |
| 774 | static inline bool __is_ctrl_final(struct l2cap_chan *chan, __u32 ctrl) |
| 775 | { |
| 776 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 777 | return ctrl & L2CAP_EXT_CTRL_FINAL; |
| 778 | else |
| 779 | return ctrl & L2CAP_CTRL_FINAL; |
| 780 | } |
Andrei Emeltchenko | e378173 | 2011-10-11 13:37:50 +0300 | [diff] [blame] | 781 | |
| 782 | static inline __u32 __set_ctrl_poll(struct l2cap_chan *chan) |
| 783 | { |
| 784 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 785 | return L2CAP_EXT_CTRL_POLL; |
| 786 | else |
| 787 | return L2CAP_CTRL_POLL; |
| 788 | } |
| 789 | |
| 790 | static inline bool __is_ctrl_poll(struct l2cap_chan *chan, __u32 ctrl) |
| 791 | { |
| 792 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 793 | return ctrl & L2CAP_EXT_CTRL_POLL; |
| 794 | else |
| 795 | return ctrl & L2CAP_CTRL_POLL; |
| 796 | } |
Andrei Emeltchenko | 88843ab | 2011-10-17 12:19:56 +0300 | [diff] [blame] | 797 | |
| 798 | static inline __u32 __get_control(struct l2cap_chan *chan, void *p) |
| 799 | { |
| 800 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 801 | return get_unaligned_le32(p); |
| 802 | else |
| 803 | return get_unaligned_le16(p); |
| 804 | } |
| 805 | |
| 806 | static inline void __put_control(struct l2cap_chan *chan, __u32 control, |
| 807 | void *p) |
| 808 | { |
| 809 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 810 | return put_unaligned_le32(control, p); |
| 811 | else |
| 812 | return put_unaligned_le16(control, p); |
| 813 | } |
| 814 | |
| 815 | static inline __u8 __ctrl_size(struct l2cap_chan *chan) |
| 816 | { |
| 817 | if (test_bit(FLAG_EXT_CTRL, &chan->flags)) |
| 818 | return L2CAP_EXT_HDR_SIZE - L2CAP_HDR_SIZE; |
| 819 | else |
| 820 | return L2CAP_ENH_HDR_SIZE - L2CAP_HDR_SIZE; |
| 821 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | |
Rusty Russell | eb93992 | 2011-12-19 14:08:01 +0000 | [diff] [blame] | 823 | extern bool disable_ertm; |
Gustavo F. Padovan | bb58f74 | 2011-02-03 20:50:35 -0200 | [diff] [blame] | 824 | |
| 825 | int l2cap_init_sockets(void); |
| 826 | void l2cap_cleanup_sockets(void); |
| 827 | |
Gustavo F. Padovan | 8c1d787 | 2011-04-13 20:23:55 -0300 | [diff] [blame] | 828 | void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); |
Gustavo F. Padovan | dcba0db | 2011-02-04 03:08:36 -0200 | [diff] [blame] | 829 | int __l2cap_wait_ack(struct sock *sk); |
Gustavo F. Padovan | 6898325 | 2011-02-04 03:02:31 -0200 | [diff] [blame] | 830 | |
Gustavo F. Padovan | 9e4425f | 2011-04-18 18:38:43 -0300 | [diff] [blame] | 831 | int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); |
| 832 | int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); |
| 833 | |
Gustavo F. Padovan | 23691d7 | 2011-04-27 18:26:32 -0300 | [diff] [blame] | 834 | struct l2cap_chan *l2cap_chan_create(struct sock *sk); |
Gustavo F. Padovan | 0f85272 | 2011-05-04 19:42:50 -0300 | [diff] [blame] | 835 | void l2cap_chan_close(struct l2cap_chan *chan, int reason); |
Gustavo F. Padovan | 23691d7 | 2011-04-27 18:26:32 -0300 | [diff] [blame] | 836 | void l2cap_chan_destroy(struct l2cap_chan *chan); |
Johan Hedberg | 4aa832c | 2012-01-08 22:51:16 +0200 | [diff] [blame] | 837 | int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, |
Gustavo F. Padovan | 03a0019 | 2011-12-09 04:48:17 -0200 | [diff] [blame] | 838 | bdaddr_t *dst); |
Luiz Augusto von Dentz | 5e59b79 | 2011-11-01 10:58:57 +0200 | [diff] [blame] | 839 | int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len, |
| 840 | u32 priority); |
Mat Martineau | e328140 | 2011-07-07 09:39:02 -0700 | [diff] [blame] | 841 | void l2cap_chan_busy(struct l2cap_chan *chan, int busy); |
Gustavo F. Padovan | d45fc42 | 2011-11-05 19:54:24 -0200 | [diff] [blame] | 842 | int l2cap_chan_check_security(struct l2cap_chan *chan); |
Gustavo F. Padovan | bb58f74 | 2011-02-03 20:50:35 -0200 | [diff] [blame] | 843 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | #endif /* __L2CAP_H */ |