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@qualcomm.com> 7 * Copyright (C) 2002-2010 Marcel Holtmann <marcel@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 73 /* L2CAP command codes */ 74 #define L2CAP_COMMAND_REJ 0x01 75 #define L2CAP_CONN_REQ 0x02 76 #define L2CAP_CONN_RSP 0x03 77 #define L2CAP_CONF_REQ 0x04 78 #define L2CAP_CONF_RSP 0x05 79 #define L2CAP_DISCONN_REQ 0x06 80 #define L2CAP_DISCONN_RSP 0x07 81 #define L2CAP_ECHO_REQ 0x08 82 #define L2CAP_ECHO_RSP 0x09 83 #define L2CAP_INFO_REQ 0x0a 84 #define L2CAP_INFO_RSP 0x0b 85 86 /* L2CAP structures */ 87 typedef struct { 88 uint16_t len; 89 uint16_t cid; 90 } __attribute__ ((packed)) l2cap_hdr; 91 #define L2CAP_HDR_SIZE 4 92 93 typedef struct { 94 uint8_t code; 95 uint8_t ident; 96 uint16_t len; 97 } __attribute__ ((packed)) l2cap_cmd_hdr; 98 #define L2CAP_CMD_HDR_SIZE 4 99 100 typedef struct { 101 uint16_t reason; 102 } __attribute__ ((packed)) l2cap_cmd_rej; 103 #define L2CAP_CMD_REJ_SIZE 2 104 105 typedef struct { 106 uint16_t psm; 107 uint16_t scid; 108 } __attribute__ ((packed)) l2cap_conn_req; 109 #define L2CAP_CONN_REQ_SIZE 4 110 111 typedef struct { 112 uint16_t dcid; 113 uint16_t scid; 114 uint16_t result; 115 uint16_t status; 116 } __attribute__ ((packed)) l2cap_conn_rsp; 117 #define L2CAP_CONN_RSP_SIZE 8 118 119 /* connect result */ 120 #define L2CAP_CR_SUCCESS 0x0000 121 #define L2CAP_CR_PEND 0x0001 122 #define L2CAP_CR_BAD_PSM 0x0002 123 #define L2CAP_CR_SEC_BLOCK 0x0003 124 #define L2CAP_CR_NO_MEM 0x0004 125 126 /* connect status */ 127 #define L2CAP_CS_NO_INFO 0x0000 128 #define L2CAP_CS_AUTHEN_PEND 0x0001 129 #define L2CAP_CS_AUTHOR_PEND 0x0002 130 131 typedef struct { 132 uint16_t dcid; 133 uint16_t flags; 134 uint8_t data[0]; 135 } __attribute__ ((packed)) l2cap_conf_req; 136 #define L2CAP_CONF_REQ_SIZE 4 137 138 typedef struct { 139 uint16_t scid; 140 uint16_t flags; 141 uint16_t result; 142 uint8_t data[0]; 143 } __attribute__ ((packed)) l2cap_conf_rsp; 144 #define L2CAP_CONF_RSP_SIZE 6 145 146 #define L2CAP_CONF_SUCCESS 0x0000 147 #define L2CAP_CONF_UNACCEPT 0x0001 148 #define L2CAP_CONF_REJECT 0x0002 149 #define L2CAP_CONF_UNKNOWN 0x0003 150 151 typedef struct { 152 uint8_t type; 153 uint8_t len; 154 uint8_t val[0]; 155 } __attribute__ ((packed)) l2cap_conf_opt; 156 #define L2CAP_CONF_OPT_SIZE 2 157 158 #define L2CAP_CONF_MTU 0x01 159 #define L2CAP_CONF_FLUSH_TO 0x02 160 #define L2CAP_CONF_QOS 0x03 161 #define L2CAP_CONF_RFC 0x04 162 #define L2CAP_CONF_FCS 0x05 163 164 #define L2CAP_CONF_MAX_SIZE 22 165 166 #define L2CAP_MODE_BASIC 0x00 167 #define L2CAP_MODE_RETRANS 0x01 168 #define L2CAP_MODE_FLOWCTL 0x02 169 #define L2CAP_MODE_ERTM 0x03 170 #define L2CAP_MODE_STREAMING 0x04 171 172 typedef struct { 173 uint16_t dcid; 174 uint16_t scid; 175 } __attribute__ ((packed)) l2cap_disconn_req; 176 #define L2CAP_DISCONN_REQ_SIZE 4 177 178 typedef struct { 179 uint16_t dcid; 180 uint16_t scid; 181 } __attribute__ ((packed)) l2cap_disconn_rsp; 182 #define L2CAP_DISCONN_RSP_SIZE 4 183 184 typedef struct { 185 uint16_t type; 186 } __attribute__ ((packed)) l2cap_info_req; 187 #define L2CAP_INFO_REQ_SIZE 2 188 189 typedef struct { 190 uint16_t type; 191 uint16_t result; 192 uint8_t data[0]; 193 } __attribute__ ((packed)) l2cap_info_rsp; 194 #define L2CAP_INFO_RSP_SIZE 4 195 196 /* info type */ 197 #define L2CAP_IT_CL_MTU 0x0001 198 #define L2CAP_IT_FEAT_MASK 0x0002 199 200 /* info result */ 201 #define L2CAP_IR_SUCCESS 0x0000 202 #define L2CAP_IR_NOTSUPP 0x0001 203 204 #ifdef __cplusplus 205 } 206 #endif 207 208 #endif /* __L2CAP_H */ 209