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Diffstat (limited to 'include/net/bluetooth/l2cap.h')
| -rw-r--r-- | include/net/bluetooth/l2cap.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h new file mode 100644 index 000000000000..8242a0ee1f58 --- /dev/null +++ b/include/net/bluetooth/l2cap.h @@ -0,0 +1,238 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + Copyright (C) 2000-2001 Qualcomm Incorporated + + Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY + CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS + SOFTWARE IS DISCLAIMED. +*/ + +#ifndef __L2CAP_H +#define __L2CAP_H + +/* L2CAP defaults */ +#define L2CAP_DEFAULT_MTU 672 +#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF + +#define L2CAP_CONN_TIMEOUT (HZ * 40) + +/* L2CAP socket address */ +struct sockaddr_l2 { + sa_family_t l2_family; + unsigned short l2_psm; + bdaddr_t l2_bdaddr; +}; + +/* L2CAP socket options */ +#define L2CAP_OPTIONS 0x01 +struct l2cap_options { + __u16 omtu; + __u16 imtu; + __u16 flush_to; + __u8 mode; +}; + +#define L2CAP_CONNINFO 0x02 +struct l2cap_conninfo { + __u16 hci_handle; + __u8 dev_class[3]; +}; + +#define L2CAP_LM 0x03 +#define L2CAP_LM_MASTER 0x0001 +#define L2CAP_LM_AUTH 0x0002 +#define L2CAP_LM_ENCRYPT 0x0004 +#define L2CAP_LM_TRUSTED 0x0008 +#define L2CAP_LM_RELIABLE 0x0010 +#define L2CAP_LM_SECURE 0x0020 + +/* L2CAP command codes */ +#define L2CAP_COMMAND_REJ 0x01 +#define L2CAP_CONN_REQ 0x02 +#define L2CAP_CONN_RSP 0x03 +#define L2CAP_CONF_REQ 0x04 +#define L2CAP_CONF_RSP 0x05 +#define L2CAP_DISCONN_REQ 0x06 +#define L2CAP_DISCONN_RSP 0x07 +#define L2CAP_ECHO_REQ 0x08 +#define L2CAP_ECHO_RSP 0x09 +#define L2CAP_INFO_REQ 0x0a +#define L2CAP_INFO_RSP 0x0b + +/* L2CAP structures */ +struct l2cap_hdr { + __u16 len; + __u16 cid; +} __attribute__ ((packed)); +#define L2CAP_HDR_SIZE 4 + +struct l2cap_cmd_hdr { + __u8 code; + __u8 ident; + __u16 len; +} __attribute__ ((packed)); +#define L2CAP_CMD_HDR_SIZE 4 + +struct l2cap_cmd_rej { + __u16 reason; +} __attribute__ ((packed)); + +struct l2cap_conn_req { + __u16 psm; + __u16 scid; +} __attribute__ ((packed)); + +struct l2cap_conn_rsp { + __u16 dcid; + __u16 scid; + __u16 result; + __u16 status; +} __attribute__ ((packed)); + +/* connect result */ +#define L2CAP_CR_SUCCESS 0x0000 +#define L2CAP_CR_PEND 0x0001 +#define L2CAP_CR_BAD_PSM 0x0002 +#define L2CAP_CR_SEC_BLOCK 0x0003 +#define L2CAP_CR_NO_MEM 0x0004 + +/* connect status */ +#define L2CAP_CS_NO_INFO 0x0000 +#define L2CAP_CS_AUTHEN_PEND 0x0001 +#define L2CAP_CS_AUTHOR_PEND 0x0002 + +struct l2cap_conf_req { + __u16 dcid; + __u16 flags; + __u8 data[0]; +} __attribute__ ((packed)); + +struct l2cap_conf_rsp { + __u16 scid; + __u16 flags; + __u16 result; + __u8 data[0]; +} __attribute__ ((packed)); + +#define L2CAP_CONF_SUCCESS 0x00 +#define L2CAP_CONF_UNACCEPT 0x01 + +struct l2cap_conf_opt { + __u8 type; + __u8 len; + __u8 val[0]; +} __attribute__ ((packed)); +#define L2CAP_CONF_OPT_SIZE 2 + +#define L2CAP_CONF_MTU 0x01 +#define L2CAP_CONF_FLUSH_TO 0x02 +#define L2CAP_CONF_QOS 0x03 +#define L2CAP_CONF_RFC 0x04 + +#define L2CAP_CONF_MAX_SIZE 22 + +struct l2cap_disconn_req { + __u16 dcid; + __u16 scid; +} __attribute__ ((packed)); + +struct l2cap_disconn_rsp { + __u16 dcid; + __u16 scid; +} __attribute__ ((packed)); + +struct l2cap_info_req { + __u16 type; + __u8 data[0]; +} __attribute__ ((packed)); + +struct l2cap_info_rsp { + __u16 type; + __u16 result; + __u8 data[0]; +} __attribute__ ((packed)); + +/* info type */ +#define L2CAP_IT_CL_MTU 0x0001 +#define L2CAP_IT_FEAT_MASK 0x0002 + +/* info result */ +#define L2CAP_IR_SUCCESS 0x0000 +#define L2CAP_IR_NOTSUPP 0x0001 + +/* ----- L2CAP connections ----- */ +struct l2cap_chan_list { + struct sock *head; + rwlock_t lock; + long num; +}; + +struct l2cap_conn { + struct hci_conn *hcon; + + bdaddr_t *dst; + bdaddr_t *src; + + unsigned int mtu; + + spinlock_t lock; + + struct sk_buff *rx_skb; + __u32 rx_len; + __u8 rx_ident; + __u8 tx_ident; + + struct l2cap_chan_list chan_list; +}; + +/* ----- L2CAP channel and socket info ----- */ +#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk) + +struct l2cap_pinfo { + struct bt_sock bt; + __u16 psm; + __u16 dcid; + __u16 scid; + + __u16 imtu; + __u16 omtu; + __u16 flush_to; + + __u32 link_mode; + + __u8 conf_state; + __u8 conf_retry; + __u16 conf_mtu; + + __u8 ident; + + __u16 sport; + + struct l2cap_conn *conn; + struct sock *next_c; + struct sock *prev_c; +}; + +#define L2CAP_CONF_REQ_SENT 0x01 +#define L2CAP_CONF_INPUT_DONE 0x02 +#define L2CAP_CONF_OUTPUT_DONE 0x04 +#define L2CAP_CONF_MAX_RETRIES 2 + +void l2cap_load(void); + +#endif /* __L2CAP_H */ |