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-rw-r--r--include/net/bluetooth/l2cap.h238
1 files changed, 238 insertions, 0 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
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+++ b/include/net/bluetooth/l2cap.h
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+/*
+ 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 */