239 lines
5.1 KiB
C
239 lines
5.1 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (C) 2000-2001 Qualcomm Incorporated
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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#ifndef __L2CAP_H
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#define __L2CAP_H
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/* L2CAP defaults */
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#define L2CAP_DEFAULT_MTU 672
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#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
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#define L2CAP_CONN_TIMEOUT (HZ * 40)
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/* L2CAP socket address */
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struct sockaddr_l2 {
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sa_family_t l2_family;
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unsigned short l2_psm;
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bdaddr_t l2_bdaddr;
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};
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/* L2CAP socket options */
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#define L2CAP_OPTIONS 0x01
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struct l2cap_options {
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__u16 omtu;
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__u16 imtu;
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__u16 flush_to;
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__u8 mode;
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};
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#define L2CAP_CONNINFO 0x02
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struct l2cap_conninfo {
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__u16 hci_handle;
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__u8 dev_class[3];
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};
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#define L2CAP_LM 0x03
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#define L2CAP_LM_MASTER 0x0001
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#define L2CAP_LM_AUTH 0x0002
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#define L2CAP_LM_ENCRYPT 0x0004
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#define L2CAP_LM_TRUSTED 0x0008
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#define L2CAP_LM_RELIABLE 0x0010
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#define L2CAP_LM_SECURE 0x0020
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/* L2CAP command codes */
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#define L2CAP_COMMAND_REJ 0x01
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#define L2CAP_CONN_REQ 0x02
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#define L2CAP_CONN_RSP 0x03
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#define L2CAP_CONF_REQ 0x04
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#define L2CAP_CONF_RSP 0x05
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#define L2CAP_DISCONN_REQ 0x06
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#define L2CAP_DISCONN_RSP 0x07
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#define L2CAP_ECHO_REQ 0x08
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#define L2CAP_ECHO_RSP 0x09
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#define L2CAP_INFO_REQ 0x0a
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#define L2CAP_INFO_RSP 0x0b
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/* L2CAP structures */
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struct l2cap_hdr {
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__u16 len;
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__u16 cid;
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} __attribute__ ((packed));
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#define L2CAP_HDR_SIZE 4
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struct l2cap_cmd_hdr {
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__u8 code;
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__u8 ident;
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__u16 len;
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} __attribute__ ((packed));
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#define L2CAP_CMD_HDR_SIZE 4
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struct l2cap_cmd_rej {
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__u16 reason;
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} __attribute__ ((packed));
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struct l2cap_conn_req {
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__u16 psm;
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__u16 scid;
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} __attribute__ ((packed));
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struct l2cap_conn_rsp {
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__u16 dcid;
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__u16 scid;
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__u16 result;
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__u16 status;
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} __attribute__ ((packed));
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/* connect result */
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#define L2CAP_CR_SUCCESS 0x0000
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#define L2CAP_CR_PEND 0x0001
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#define L2CAP_CR_BAD_PSM 0x0002
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#define L2CAP_CR_SEC_BLOCK 0x0003
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#define L2CAP_CR_NO_MEM 0x0004
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/* connect status */
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#define L2CAP_CS_NO_INFO 0x0000
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#define L2CAP_CS_AUTHEN_PEND 0x0001
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#define L2CAP_CS_AUTHOR_PEND 0x0002
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struct l2cap_conf_req {
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__u16 dcid;
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__u16 flags;
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__u8 data[0];
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} __attribute__ ((packed));
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struct l2cap_conf_rsp {
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__u16 scid;
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__u16 flags;
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__u16 result;
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__u8 data[0];
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} __attribute__ ((packed));
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#define L2CAP_CONF_SUCCESS 0x00
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#define L2CAP_CONF_UNACCEPT 0x01
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struct l2cap_conf_opt {
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__u8 type;
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__u8 len;
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__u8 val[0];
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} __attribute__ ((packed));
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#define L2CAP_CONF_OPT_SIZE 2
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#define L2CAP_CONF_MTU 0x01
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#define L2CAP_CONF_FLUSH_TO 0x02
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#define L2CAP_CONF_QOS 0x03
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#define L2CAP_CONF_RFC 0x04
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#define L2CAP_CONF_MAX_SIZE 22
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struct l2cap_disconn_req {
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__u16 dcid;
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__u16 scid;
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} __attribute__ ((packed));
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struct l2cap_disconn_rsp {
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__u16 dcid;
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__u16 scid;
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} __attribute__ ((packed));
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struct l2cap_info_req {
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__u16 type;
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__u8 data[0];
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} __attribute__ ((packed));
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struct l2cap_info_rsp {
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__u16 type;
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__u16 result;
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__u8 data[0];
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} __attribute__ ((packed));
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/* info type */
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#define L2CAP_IT_CL_MTU 0x0001
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#define L2CAP_IT_FEAT_MASK 0x0002
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/* info result */
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#define L2CAP_IR_SUCCESS 0x0000
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#define L2CAP_IR_NOTSUPP 0x0001
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/* ----- L2CAP connections ----- */
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struct l2cap_chan_list {
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struct sock *head;
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rwlock_t lock;
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long num;
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};
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struct l2cap_conn {
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struct hci_conn *hcon;
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bdaddr_t *dst;
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bdaddr_t *src;
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unsigned int mtu;
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spinlock_t lock;
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struct sk_buff *rx_skb;
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__u32 rx_len;
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__u8 rx_ident;
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__u8 tx_ident;
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struct l2cap_chan_list chan_list;
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};
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/* ----- L2CAP channel and socket info ----- */
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#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
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struct l2cap_pinfo {
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struct bt_sock bt;
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__u16 psm;
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__u16 dcid;
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__u16 scid;
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__u16 imtu;
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__u16 omtu;
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__u16 flush_to;
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__u32 link_mode;
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__u8 conf_state;
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__u8 conf_retry;
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__u16 conf_mtu;
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__u8 ident;
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__u16 sport;
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struct l2cap_conn *conn;
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struct sock *next_c;
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struct sock *prev_c;
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};
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#define L2CAP_CONF_REQ_SENT 0x01
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#define L2CAP_CONF_INPUT_DONE 0x02
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#define L2CAP_CONF_OUTPUT_DONE 0x04
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#define L2CAP_CONF_MAX_RETRIES 2
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void l2cap_load(void);
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#endif /* __L2CAP_H */
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