1 /* 2 * 3 * BlueZ - Bluetooth protocol stack for Linux 4 * 5 * Copyright (C) 2000-2001 Qualcomm Incorporated 6 * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk (at) qualcomm.com> 7 * Copyright (C) 2002-2010 Marcel Holtmann <marcel (at) holtmann.org> 8 * 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 23 * 24 */ 25 26 #ifndef __L2CAP_H 27 #define __L2CAP_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <sys/socket.h> 34 35 /* L2CAP defaults */ 36 #define L2CAP_DEFAULT_MTU 672 37 #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF 38 39 /* L2CAP socket address */ 40 struct sockaddr_l2 { 41 sa_family_t l2_family; 42 unsigned short l2_psm; 43 bdaddr_t l2_bdaddr; 44 unsigned short l2_cid; 45 }; 46 47 /* L2CAP socket options */ 48 #define L2CAP_OPTIONS 0x01 49 struct l2cap_options { 50 uint16_t omtu; 51 uint16_t imtu; 52 uint16_t flush_to; 53 uint8_t mode; 54 uint8_t fcs; 55 uint8_t max_tx; 56 uint16_t txwin_size; 57 }; 58 59 #define L2CAP_CONNINFO 0x02 60 struct l2cap_conninfo { 61 uint16_t hci_handle; 62 uint8_t dev_class[3]; 63 }; 64 65 #define L2CAP_LM 0x03 66 #define L2CAP_LM_MASTER 0x0001 67 #define L2CAP_LM_AUTH 0x0002 68 #define L2CAP_LM_ENCRYPT 0x0004 69 #define L2CAP_LM_TRUSTED 0x0008 70 #define L2CAP_LM_RELIABLE 0x0010 71 #define L2CAP_LM_SECURE 0x0020 72 #define L2CAP_LM_FLUSHABLE 0x0040 73 74 /* L2CAP command codes */ 75 #define L2CAP_COMMAND_REJ 0x01 76 #define L2CAP_CONN_REQ 0x02 77 #define L2CAP_CONN_RSP 0x03 78 #define L2CAP_CONF_REQ 0x04 79 #define L2CAP_CONF_RSP 0x05 80 #define L2CAP_DISCONN_REQ 0x06 81 #define L2CAP_DISCONN_RSP 0x07 82 #define L2CAP_ECHO_REQ 0x08 83 #define L2CAP_ECHO_RSP 0x09 84 #define L2CAP_INFO_REQ 0x0a 85 #define L2CAP_INFO_RSP 0x0b 86 87 /* L2CAP structures */ 88 typedef struct { 89 uint16_t len; 90 uint16_t cid; 91 } __attribute__ ((packed)) l2cap_hdr; 92 #define L2CAP_HDR_SIZE 4 93 94 typedef struct { 95 uint8_t code; 96 uint8_t ident; 97 uint16_t len; 98 } __attribute__ ((packed)) l2cap_cmd_hdr; 99 #define L2CAP_CMD_HDR_SIZE 4 100 101 typedef struct { 102 uint16_t reason; 103 } __attribute__ ((packed)) l2cap_cmd_rej; 104 #define L2CAP_CMD_REJ_SIZE 2 105 106 typedef struct { 107 uint16_t psm; 108 uint16_t scid; 109 } __attribute__ ((packed)) l2cap_conn_req; 110 #define L2CAP_CONN_REQ_SIZE 4 111 112 typedef struct { 113 uint16_t dcid; 114 uint16_t scid; 115 uint16_t result; 116 uint16_t status; 117 } __attribute__ ((packed)) l2cap_conn_rsp; 118 #define L2CAP_CONN_RSP_SIZE 8 119 120 /* connect result */ 121 #define L2CAP_CR_SUCCESS 0x0000 122 #define L2CAP_CR_PEND 0x0001 123 #define L2CAP_CR_BAD_PSM 0x0002 124 #define L2CAP_CR_SEC_BLOCK 0x0003 125 #define L2CAP_CR_NO_MEM 0x0004 126 127 /* connect status */ 128 #define L2CAP_CS_NO_INFO 0x0000 129 #define L2CAP_CS_AUTHEN_PEND 0x0001 130 #define L2CAP_CS_AUTHOR_PEND 0x0002 131 132 typedef struct { 133 uint16_t dcid; 134 uint16_t flags; 135 uint8_t data[0]; 136 } __attribute__ ((packed)) l2cap_conf_req; 137 #define L2CAP_CONF_REQ_SIZE 4 138 139 typedef struct { 140 uint16_t scid; 141 uint16_t flags; 142 uint16_t result; 143 uint8_t data[0]; 144 } __attribute__ ((packed)) l2cap_conf_rsp; 145 #define L2CAP_CONF_RSP_SIZE 6 146 147 #define L2CAP_CONF_SUCCESS 0x0000 148 #define L2CAP_CONF_UNACCEPT 0x0001 149 #define L2CAP_CONF_REJECT 0x0002 150 #define L2CAP_CONF_UNKNOWN 0x0003 151 152 typedef struct { 153 uint8_t type; 154 uint8_t len; 155 uint8_t val[0]; 156 } __attribute__ ((packed)) l2cap_conf_opt; 157 #define L2CAP_CONF_OPT_SIZE 2 158 159 #define L2CAP_CONF_MTU 0x01 160 #define L2CAP_CONF_FLUSH_TO 0x02 161 #define L2CAP_CONF_QOS 0x03 162 #define L2CAP_CONF_RFC 0x04 163 #define L2CAP_CONF_FCS 0x05 164 165 #define L2CAP_CONF_MAX_SIZE 22 166 167 #define L2CAP_MODE_BASIC 0x00 168 #define L2CAP_MODE_RETRANS 0x01 169 #define L2CAP_MODE_FLOWCTL 0x02 170 #define L2CAP_MODE_ERTM 0x03 171 #define L2CAP_MODE_STREAMING 0x04 172 173 typedef struct { 174 uint16_t dcid; 175 uint16_t scid; 176 } __attribute__ ((packed)) l2cap_disconn_req; 177 #define L2CAP_DISCONN_REQ_SIZE 4 178 179 typedef struct { 180 uint16_t dcid; 181 uint16_t scid; 182 } __attribute__ ((packed)) l2cap_disconn_rsp; 183 #define L2CAP_DISCONN_RSP_SIZE 4 184 185 typedef struct { 186 uint16_t type; 187 } __attribute__ ((packed)) l2cap_info_req; 188 #define L2CAP_INFO_REQ_SIZE 2 189 190 typedef struct { 191 uint16_t type; 192 uint16_t result; 193 uint8_t data[0]; 194 } __attribute__ ((packed)) l2cap_info_rsp; 195 #define L2CAP_INFO_RSP_SIZE 4 196 197 /* info type */ 198 #define L2CAP_IT_CL_MTU 0x0001 199 #define L2CAP_IT_FEAT_MASK 0x0002 200 201 /* info result */ 202 #define L2CAP_IR_SUCCESS 0x0000 203 #define L2CAP_IR_NOTSUPP 0x0001 204 205 #ifdef __cplusplus 206 } 207 #endif 208 209 #endif /* __L2CAP_H */ 210
