1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (C) 2000-2001 Qualcomm Incorporated 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23 */ 24 25 /* 26 * $Id: l2cap.h,v 1.1.1.1 2002/03/08 21:03:15 maxk Exp $ 27 */ 28 29 #ifndef __L2CAP_H 30 #define __L2CAP_H 31 32 /* L2CAP defaults */ 33 #define L2CAP_DEFAULT_MTU 672 34 #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF 35 36 #define L2CAP_CONN_TIMEOUT (HZ * 40) 37 38 /* L2CAP socket address */ 39 struct sockaddr_l2 { 40 sa_family_t l2_family; 41 unsigned short l2_psm; 42 bdaddr_t l2_bdaddr; 43 }; 44 45 /* Socket options */ 46 #define L2CAP_OPTIONS 0x01 47 struct l2cap_options { 48 __u16 omtu; 49 __u16 imtu; 50 __u16 flush_to; 51 }; 52 53 #define L2CAP_CONNINFO 0x02 54 struct l2cap_conninfo { 55 __u16 hci_handle; 56 }; 57 58 #define L2CAP_LM 0x03 59 #define L2CAP_LM_MASTER 0x0001 60 #define L2CAP_LM_AUTH 0x0002 61 #define L2CAP_LM_ENCRYPT 0x0004 62 #define L2CAP_LM_TRUSTED 0x0008 63 #define L2CAP_LM_RELIABLE 0x0010 64 65 #define L2CAP_QOS 0x04 66 struct l2cap_qos { 67 __u16 service_type; 68 __u32 token_rate; 69 __u32 token_bucket_size; 70 __u32 peak_bandwidth; 71 __u32 latency; 72 __u32 delay_variation; 73 }; 74 75 #define L2CAP_SERV_NO_TRAFFIC 0x00 76 #define L2CAP_SERV_BEST_EFFORT 0x01 77 #define L2CAP_SERV_GUARANTEED 0x02 78 79 /* L2CAP command codes */ 80 #define L2CAP_COMMAND_REJ 0x01 81 #define L2CAP_CONN_REQ 0x02 82 #define L2CAP_CONN_RSP 0x03 83 #define L2CAP_CONF_REQ 0x04 84 #define L2CAP_CONF_RSP 0x05 85 #define L2CAP_DISCONN_REQ 0x06 86 #define L2CAP_DISCONN_RSP 0x07 87 #define L2CAP_ECHO_REQ 0x08 88 #define L2CAP_ECHO_RSP 0x09 89 #define L2CAP_INFO_REQ 0x0a 90 #define L2CAP_INFO_RSP 0x0b 91 92 /* L2CAP structures */ 93 typedef struct { 94 __u16 len; 95 __u16 cid; 96 } __attribute__ ((packed)) l2cap_hdr; 97 #define L2CAP_HDR_SIZE 4 98 99 typedef struct { 100 __u8 code; 101 __u8 ident; 102 __u16 len; 103 } __attribute__ ((packed)) l2cap_cmd_hdr; 104 #define L2CAP_CMD_HDR_SIZE 4 105 106 typedef struct { 107 __u16 reason; 108 } __attribute__ ((packed)) l2cap_cmd_rej; 109 #define L2CAP_CMD_REJ_SIZE 2 110 111 typedef struct { 112 __u16 psm; 113 __u16 scid; 114 } __attribute__ ((packed)) l2cap_conn_req; 115 #define L2CAP_CONN_REQ_SIZE 4 116 117 typedef struct { 118 __u16 dcid; 119 __u16 scid; 120 __u16 result; 121 __u16 status; 122 } __attribute__ ((packed)) l2cap_conn_rsp; 123 #define L2CAP_CONN_RSP_SIZE 8 124 125 /* connect result */ 126 #define L2CAP_CR_SUCCESS 0x0000 127 #define L2CAP_CR_PEND 0x0001 128 #define L2CAP_CR_BAD_PSM 0x0002 129 #define L2CAP_CR_SEC_BLOCK 0x0003 130 #define L2CAP_CR_NO_MEM 0x0004 131 132 /* connect status */ 133 #define L2CAP_CS_NO_INFO 0x0000 134 #define L2CAP_CS_AUTHEN_PEND 0x0001 135 #define L2CAP_CS_AUTHOR_PEND 0x0002 136 137 typedef struct { 138 __u16 dcid; 139 __u16 flags; 140 __u8 data[0]; 141 } __attribute__ ((packed)) l2cap_conf_req; 142 #define L2CAP_CONF_REQ_SIZE 4 143 144 typedef struct { 145 __u16 scid; 146 __u16 flags; 147 __u16 result; 148 __u8 data[0]; 149 } __attribute__ ((packed)) l2cap_conf_rsp; 150 #define L2CAP_CONF_RSP_SIZE 6 151 152 #define L2CAP_CONF_SUCCESS 0x00 153 #define L2CAP_CONF_UNACCEPT 0x01 154 155 typedef struct { 156 __u8 type; 157 __u8 len; 158 __u8 val[0]; 159 } __attribute__ ((packed)) l2cap_conf_opt; 160 #define L2CAP_CONF_OPT_SIZE 2 161 162 #define L2CAP_CONF_MTU 0x01 163 #define L2CAP_CONF_FLUSH_TO 0x02 164 #define L2CAP_CONF_QOS 0x03 165 166 #define L2CAP_CONF_MAX_SIZE 22 167 168 typedef struct { 169 __u16 dcid; 170 __u16 scid; 171 } __attribute__ ((packed)) l2cap_disconn_req; 172 #define L2CAP_DISCONN_REQ_SIZE 4 173 174 typedef struct { 175 __u16 dcid; 176 __u16 scid; 177 } __attribute__ ((packed)) l2cap_disconn_rsp; 178 #define L2CAP_DISCONN_RSP_SIZE 4 179 180 typedef struct { 181 __u16 type; 182 __u8 data[0]; 183 } __attribute__ ((packed)) l2cap_info_req; 184 #define L2CAP_INFO_REQ_SIZE 2 185 186 typedef struct { 187 __u16 type; 188 __u16 result; 189 __u8 data[0]; 190 } __attribute__ ((packed)) l2cap_info_rsp; 191 #define L2CAP_INFO_RSP_SIZE 4 192 193 /* info type */ 194 #define L2CAP_IT_CL_MTU 0x0001 195 #define L2CAP_IT_FEAT_MASK 0x0002 196 197 /* info result */ 198 #define L2CAP_IR_SUCCESS 0x0000 199 #define L2CAP_IR_NOTSUPP 0x0001 200 201 /* ----- L2CAP connections ----- */ 202 struct l2cap_chan_list { 203 struct sock *head; 204 rwlock_t lock; 205 long num; 206 }; 207 208 struct l2cap_conn { 209 struct hci_conn *hcon; 210 211 bdaddr_t *dst; 212 bdaddr_t *src; 213 214 unsigned int mtu; 215 216 spinlock_t lock; 217 218 struct sk_buff *rx_skb; 219 __u32 rx_len; 220 __u8 rx_ident; 221 __u8 tx_ident; 222 223 struct l2cap_chan_list chan_list; 224 }; 225 226 /* ----- L2CAP channel and socket info ----- */ 227 #define l2cap_pi(sk) ((struct l2cap_pinfo *) &sk->tp_pinfo) 228 229 struct l2cap_pinfo { 230 __u16 psm; 231 __u16 dcid; 232 __u16 scid; 233 234 __u16 imtu; 235 __u16 omtu; 236 __u16 flush_to; 237 238 __u32 link_mode; 239 240 __u8 conf_state; 241 __u8 conf_retry; 242 __u16 conf_mtu; 243 244 __u8 ident; 245 246 struct l2cap_conn *conn; 247 struct sock *next_c; 248 struct sock *prev_c; 249 }; 250 251 #define L2CAP_CONF_REQ_SENT 0x01 252 #define L2CAP_CONF_INPUT_DONE 0x02 253 #define L2CAP_CONF_OUTPUT_DONE 0x04 254 #define L2CAP_CONF_MAX_RETRIES 2 255 256 void l2cap_load(void); 257 258 #endif /* __L2CAP_H */ 259