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) 2002-2009 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 }; 55 56 #define L2CAP_CONNINFO 0x02 57 struct l2cap_conninfo { 58 uint16_t hci_handle; 59 uint8_t dev_class[3]; 60 }; 61 62 #define L2CAP_LM 0x03 63 #define L2CAP_LM_MASTER 0x0001 64 #define L2CAP_LM_AUTH 0x0002 65 #define L2CAP_LM_ENCRYPT 0x0004 66 #define L2CAP_LM_TRUSTED 0x0008 67 #define L2CAP_LM_RELIABLE 0x0010 68 #define L2CAP_LM_SECURE 0x0020 69 #define L2CAP_LM_FLUSHABLE 0x0040 70 71 /* L2CAP command codes */ 72 #define L2CAP_COMMAND_REJ 0x01 73 #define L2CAP_CONN_REQ 0x02 74 #define L2CAP_CONN_RSP 0x03 75 #define L2CAP_CONF_REQ 0x04 76 #define L2CAP_CONF_RSP 0x05 77 #define L2CAP_DISCONN_REQ 0x06 78 #define L2CAP_DISCONN_RSP 0x07 79 #define L2CAP_ECHO_REQ 0x08 80 #define L2CAP_ECHO_RSP 0x09 81 #define L2CAP_INFO_REQ 0x0a 82 #define L2CAP_INFO_RSP 0x0b 83 84 /* L2CAP structures */ 85 typedef struct { 86 uint16_t len; 87 uint16_t cid; 88 } __attribute__ ((packed)) l2cap_hdr; 89 #define L2CAP_HDR_SIZE 4 90 91 typedef struct { 92 uint8_t code; 93 uint8_t ident; 94 uint16_t len; 95 } __attribute__ ((packed)) l2cap_cmd_hdr; 96 #define L2CAP_CMD_HDR_SIZE 4 97 98 typedef struct { 99 uint16_t reason; 100 } __attribute__ ((packed)) l2cap_cmd_rej; 101 #define L2CAP_CMD_REJ_SIZE 2 102 103 typedef struct { 104 uint16_t psm; 105 uint16_t scid; 106 } __attribute__ ((packed)) l2cap_conn_req; 107 #define L2CAP_CONN_REQ_SIZE 4 108 109 typedef struct { 110 uint16_t dcid; 111 uint16_t scid; 112 uint16_t result; 113 uint16_t status; 114 } __attribute__ ((packed)) l2cap_conn_rsp; 115 #define L2CAP_CONN_RSP_SIZE 8 116 117 /* connect result */ 118 #define L2CAP_CR_SUCCESS 0x0000 119 #define L2CAP_CR_PEND 0x0001 120 #define L2CAP_CR_BAD_PSM 0x0002 121 #define L2CAP_CR_SEC_BLOCK 0x0003 122 #define L2CAP_CR_NO_MEM 0x0004 123 124 /* connect status */ 125 #define L2CAP_CS_NO_INFO 0x0000 126 #define L2CAP_CS_AUTHEN_PEND 0x0001 127 #define L2CAP_CS_AUTHOR_PEND 0x0002 128 129 typedef struct { 130 uint16_t dcid; 131 uint16_t flags; 132 uint8_t data[0]; 133 } __attribute__ ((packed)) l2cap_conf_req; 134 #define L2CAP_CONF_REQ_SIZE 4 135 136 typedef struct { 137 uint16_t scid; 138 uint16_t flags; 139 uint16_t result; 140 uint8_t data[0]; 141 } __attribute__ ((packed)) l2cap_conf_rsp; 142 #define L2CAP_CONF_RSP_SIZE 6 143 144 #define L2CAP_CONF_SUCCESS 0x0000 145 #define L2CAP_CONF_UNACCEPT 0x0001 146 #define L2CAP_CONF_REJECT 0x0002 147 #define L2CAP_CONF_UNKNOWN 0x0003 148 149 typedef struct { 150 uint8_t type; 151 uint8_t len; 152 uint8_t val[0]; 153 } __attribute__ ((packed)) l2cap_conf_opt; 154 #define L2CAP_CONF_OPT_SIZE 2 155 156 #define L2CAP_CONF_MTU 0x01 157 #define L2CAP_CONF_FLUSH_TO 0x02 158 #define L2CAP_CONF_QOS 0x03 159 #define L2CAP_CONF_RFC 0x04 160 #define L2CAP_CONF_FCS 0x05 161 162 #define L2CAP_CONF_MAX_SIZE 22 163 164 #define L2CAP_MODE_BASIC 0x00 165 #define L2CAP_MODE_RETRANS 0x01 166 #define L2CAP_MODE_FLOWCTL 0x02 167 #define L2CAP_MODE_ERTM 0x03 168 #define L2CAP_MODE_STREAMING 0x04 169 170 typedef struct { 171 uint16_t dcid; 172 uint16_t scid; 173 } __attribute__ ((packed)) l2cap_disconn_req; 174 #define L2CAP_DISCONN_REQ_SIZE 4 175 176 typedef struct { 177 uint16_t dcid; 178 uint16_t scid; 179 } __attribute__ ((packed)) l2cap_disconn_rsp; 180 #define L2CAP_DISCONN_RSP_SIZE 4 181 182 typedef struct { 183 uint16_t type; 184 } __attribute__ ((packed)) l2cap_info_req; 185 #define L2CAP_INFO_REQ_SIZE 2 186 187 typedef struct { 188 uint16_t type; 189 uint16_t result; 190 uint8_t data[0]; 191 } __attribute__ ((packed)) l2cap_info_rsp; 192 #define L2CAP_INFO_RSP_SIZE 4 193 194 /* info type */ 195 #define L2CAP_IT_CL_MTU 0x0001 196 #define L2CAP_IT_FEAT_MASK 0x0002 197 198 /* info result */ 199 #define L2CAP_IR_SUCCESS 0x0000 200 #define L2CAP_IR_NOTSUPP 0x0001 201 202 #ifdef __cplusplus 203 } 204 #endif 205 206 #endif /* __L2CAP_H */ 207
