/* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated Copyright (C) 2009-2010 Gustavo F. Padovan <[email protected]> Copyright (C) 2010 Google Inc. Written 2000,2001 by Maxim Krasnyansky <[email protected]> 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 #include <asm/unaligned.h> #include <linux/atomic.h> /* L2CAP defaults */ #define L2CAP_DEFAULT_MTU … #define L2CAP_DEFAULT_MIN_MTU … #define L2CAP_DEFAULT_FLUSH_TO … #define L2CAP_EFS_DEFAULT_FLUSH_TO … #define L2CAP_DEFAULT_TX_WINDOW … #define L2CAP_DEFAULT_EXT_WINDOW … #define L2CAP_DEFAULT_MAX_TX … #define L2CAP_DEFAULT_RETRANS_TO … #define L2CAP_DEFAULT_MONITOR_TO … #define L2CAP_DEFAULT_MAX_PDU_SIZE … #define L2CAP_DEFAULT_ACK_TO … #define L2CAP_DEFAULT_MAX_SDU_SIZE … #define L2CAP_DEFAULT_SDU_ITIME … #define L2CAP_DEFAULT_ACC_LAT … #define L2CAP_BREDR_MAX_PAYLOAD … #define L2CAP_LE_MIN_MTU … #define L2CAP_ECRED_CONN_SCID_MAX … #define L2CAP_DISC_TIMEOUT … #define L2CAP_DISC_REJ_TIMEOUT … #define L2CAP_ENC_TIMEOUT … #define L2CAP_CONN_TIMEOUT … #define L2CAP_INFO_TIMEOUT … #define L2CAP_MOVE_TIMEOUT … #define L2CAP_MOVE_ERTX_TIMEOUT … #define L2CAP_WAIT_ACK_POLL_PERIOD … #define L2CAP_WAIT_ACK_TIMEOUT … /* L2CAP socket address */ struct sockaddr_l2 { … }; /* L2CAP socket options */ #define L2CAP_OPTIONS … struct l2cap_options { … }; #define L2CAP_CONNINFO … struct l2cap_conninfo { … }; #define L2CAP_LM … #define L2CAP_LM_MASTER … #define L2CAP_LM_AUTH … #define L2CAP_LM_ENCRYPT … #define L2CAP_LM_TRUSTED … #define L2CAP_LM_RELIABLE … #define L2CAP_LM_SECURE … #define L2CAP_LM_FIPS … /* L2CAP command codes */ #define L2CAP_COMMAND_REJ … #define L2CAP_CONN_REQ … #define L2CAP_CONN_RSP … #define L2CAP_CONF_REQ … #define L2CAP_CONF_RSP … #define L2CAP_DISCONN_REQ … #define L2CAP_DISCONN_RSP … #define L2CAP_ECHO_REQ … #define L2CAP_ECHO_RSP … #define L2CAP_INFO_REQ … #define L2CAP_INFO_RSP … #define L2CAP_CONN_PARAM_UPDATE_REQ … #define L2CAP_CONN_PARAM_UPDATE_RSP … #define L2CAP_LE_CONN_REQ … #define L2CAP_LE_CONN_RSP … #define L2CAP_LE_CREDITS … #define L2CAP_ECRED_CONN_REQ … #define L2CAP_ECRED_CONN_RSP … #define L2CAP_ECRED_RECONF_REQ … #define L2CAP_ECRED_RECONF_RSP … /* L2CAP extended feature mask */ #define L2CAP_FEAT_FLOWCTL … #define L2CAP_FEAT_RETRANS … #define L2CAP_FEAT_BIDIR_QOS … #define L2CAP_FEAT_ERTM … #define L2CAP_FEAT_STREAMING … #define L2CAP_FEAT_FCS … #define L2CAP_FEAT_EXT_FLOW … #define L2CAP_FEAT_FIXED_CHAN … #define L2CAP_FEAT_EXT_WINDOW … #define L2CAP_FEAT_UCD … /* L2CAP checksum option */ #define L2CAP_FCS_NONE … #define L2CAP_FCS_CRC16 … /* L2CAP fixed channels */ #define L2CAP_FC_SIG_BREDR … #define L2CAP_FC_CONNLESS … #define L2CAP_FC_ATT … #define L2CAP_FC_SIG_LE … #define L2CAP_FC_SMP_LE … #define L2CAP_FC_SMP_BREDR … /* L2CAP Control Field bit masks */ #define L2CAP_CTRL_SAR … #define L2CAP_CTRL_REQSEQ … #define L2CAP_CTRL_TXSEQ … #define L2CAP_CTRL_SUPERVISE … #define L2CAP_CTRL_RETRANS … #define L2CAP_CTRL_FINAL … #define L2CAP_CTRL_POLL … #define L2CAP_CTRL_FRAME_TYPE … #define L2CAP_CTRL_TXSEQ_SHIFT … #define L2CAP_CTRL_SUPER_SHIFT … #define L2CAP_CTRL_POLL_SHIFT … #define L2CAP_CTRL_FINAL_SHIFT … #define L2CAP_CTRL_REQSEQ_SHIFT … #define L2CAP_CTRL_SAR_SHIFT … /* L2CAP Extended Control Field bit mask */ #define L2CAP_EXT_CTRL_TXSEQ … #define L2CAP_EXT_CTRL_SAR … #define L2CAP_EXT_CTRL_SUPERVISE … #define L2CAP_EXT_CTRL_REQSEQ … #define L2CAP_EXT_CTRL_POLL … #define L2CAP_EXT_CTRL_FINAL … #define L2CAP_EXT_CTRL_FRAME_TYPE … #define L2CAP_EXT_CTRL_FINAL_SHIFT … #define L2CAP_EXT_CTRL_REQSEQ_SHIFT … #define L2CAP_EXT_CTRL_SAR_SHIFT … #define L2CAP_EXT_CTRL_SUPER_SHIFT … #define L2CAP_EXT_CTRL_POLL_SHIFT … #define L2CAP_EXT_CTRL_TXSEQ_SHIFT … /* L2CAP Supervisory Function */ #define L2CAP_SUPER_RR … #define L2CAP_SUPER_REJ … #define L2CAP_SUPER_RNR … #define L2CAP_SUPER_SREJ … /* L2CAP Segmentation and Reassembly */ #define L2CAP_SAR_UNSEGMENTED … #define L2CAP_SAR_START … #define L2CAP_SAR_END … #define L2CAP_SAR_CONTINUE … /* L2CAP Command rej. reasons */ #define L2CAP_REJ_NOT_UNDERSTOOD … #define L2CAP_REJ_MTU_EXCEEDED … #define L2CAP_REJ_INVALID_CID … /* L2CAP structures */ struct l2cap_hdr { … } __packed; #define L2CAP_LEN_SIZE … #define L2CAP_HDR_SIZE … #define L2CAP_ENH_HDR_SIZE … #define L2CAP_EXT_HDR_SIZE … #define L2CAP_FCS_SIZE … #define L2CAP_SDULEN_SIZE … #define L2CAP_PSMLEN_SIZE … #define L2CAP_ENH_CTRL_SIZE … #define L2CAP_EXT_CTRL_SIZE … struct l2cap_cmd_hdr { … } __packed; #define L2CAP_CMD_HDR_SIZE … struct l2cap_cmd_rej_unk { … } __packed; struct l2cap_cmd_rej_mtu { … } __packed; struct l2cap_cmd_rej_cid { … } __packed; struct l2cap_conn_req { … } __packed; struct l2cap_conn_rsp { … } __packed; /* protocol/service multiplexer (PSM) */ #define L2CAP_PSM_SDP … #define L2CAP_PSM_RFCOMM … #define L2CAP_PSM_3DSP … #define L2CAP_PSM_IPSP … #define L2CAP_PSM_DYN_START … #define L2CAP_PSM_DYN_END … #define L2CAP_PSM_AUTO_END … #define L2CAP_PSM_LE_DYN_START … #define L2CAP_PSM_LE_DYN_END … /* channel identifier */ #define L2CAP_CID_SIGNALING … #define L2CAP_CID_CONN_LESS … #define L2CAP_CID_ATT … #define L2CAP_CID_LE_SIGNALING … #define L2CAP_CID_SMP … #define L2CAP_CID_SMP_BREDR … #define L2CAP_CID_DYN_START … #define L2CAP_CID_DYN_END … #define L2CAP_CID_LE_DYN_END … /* connect/create channel results */ #define L2CAP_CR_SUCCESS … #define L2CAP_CR_PEND … #define L2CAP_CR_BAD_PSM … #define L2CAP_CR_SEC_BLOCK … #define L2CAP_CR_NO_MEM … #define L2CAP_CR_INVALID_SCID … #define L2CAP_CR_SCID_IN_USE … /* credit based connect results */ #define L2CAP_CR_LE_SUCCESS … #define L2CAP_CR_LE_BAD_PSM … #define L2CAP_CR_LE_NO_MEM … #define L2CAP_CR_LE_AUTHENTICATION … #define L2CAP_CR_LE_AUTHORIZATION … #define L2CAP_CR_LE_BAD_KEY_SIZE … #define L2CAP_CR_LE_ENCRYPTION … #define L2CAP_CR_LE_INVALID_SCID … #define L2CAP_CR_LE_SCID_IN_USE … #define L2CAP_CR_LE_UNACCEPT_PARAMS … #define L2CAP_CR_LE_INVALID_PARAMS … /* connect/create channel status */ #define L2CAP_CS_NO_INFO … #define L2CAP_CS_AUTHEN_PEND … #define L2CAP_CS_AUTHOR_PEND … struct l2cap_conf_req { … } __packed; struct l2cap_conf_rsp { … } __packed; #define L2CAP_CONF_SUCCESS … #define L2CAP_CONF_UNACCEPT … #define L2CAP_CONF_REJECT … #define L2CAP_CONF_UNKNOWN … #define L2CAP_CONF_PENDING … #define L2CAP_CONF_EFS_REJECT … /* configuration req/rsp continuation flag */ #define L2CAP_CONF_FLAG_CONTINUATION … struct l2cap_conf_opt { … } __packed; #define L2CAP_CONF_OPT_SIZE … #define L2CAP_CONF_HINT … #define L2CAP_CONF_MASK … #define L2CAP_CONF_MTU … #define L2CAP_CONF_FLUSH_TO … #define L2CAP_CONF_QOS … #define L2CAP_CONF_RFC … #define L2CAP_CONF_FCS … #define L2CAP_CONF_EFS … #define L2CAP_CONF_EWS … #define L2CAP_CONF_MAX_SIZE … struct l2cap_conf_rfc { … } __packed; #define L2CAP_MODE_BASIC … #define L2CAP_MODE_RETRANS … #define L2CAP_MODE_FLOWCTL … #define L2CAP_MODE_ERTM … #define L2CAP_MODE_STREAMING … /* Unlike the above this one doesn't actually map to anything that would * ever be sent over the air. Therefore, use a value that's unlikely to * ever be used in the BR/EDR configuration phase. */ #define L2CAP_MODE_LE_FLOWCTL … #define L2CAP_MODE_EXT_FLOWCTL … struct l2cap_conf_efs { … } __packed; #define L2CAP_SERV_NOTRAFIC … #define L2CAP_SERV_BESTEFFORT … #define L2CAP_SERV_GUARANTEED … #define L2CAP_BESTEFFORT_ID … struct l2cap_disconn_req { … } __packed; struct l2cap_disconn_rsp { … } __packed; struct l2cap_info_req { … } __packed; struct l2cap_info_rsp { … } __packed; #define L2CAP_MR_SUCCESS … #define L2CAP_MR_PEND … #define L2CAP_MR_BAD_ID … #define L2CAP_MR_SAME_ID … #define L2CAP_MR_NOT_SUPP … #define L2CAP_MR_COLLISION … #define L2CAP_MR_NOT_ALLOWED … struct l2cap_move_chan_cfm { … } __packed; #define L2CAP_MC_CONFIRMED … #define L2CAP_MC_UNCONFIRMED … struct l2cap_move_chan_cfm_rsp { … } __packed; /* info type */ #define L2CAP_IT_CL_MTU … #define L2CAP_IT_FEAT_MASK … #define L2CAP_IT_FIXED_CHAN … /* info result */ #define L2CAP_IR_SUCCESS … #define L2CAP_IR_NOTSUPP … struct l2cap_conn_param_update_req { … } __packed; struct l2cap_conn_param_update_rsp { … } __packed; /* Connection Parameters result */ #define L2CAP_CONN_PARAM_ACCEPTED … #define L2CAP_CONN_PARAM_REJECTED … struct l2cap_le_conn_req { … } __packed; struct l2cap_le_conn_rsp { … } __packed; struct l2cap_le_credits { … } __packed; #define L2CAP_ECRED_MIN_MTU … #define L2CAP_ECRED_MIN_MPS … #define L2CAP_ECRED_MAX_CID … struct l2cap_ecred_conn_req { … } __packed; struct l2cap_ecred_conn_rsp { … }; struct l2cap_ecred_reconf_req { … } __packed; #define L2CAP_RECONF_SUCCESS … #define L2CAP_RECONF_INVALID_MTU … #define L2CAP_RECONF_INVALID_MPS … struct l2cap_ecred_reconf_rsp { … } __packed; /* ----- L2CAP channels and connections ----- */ struct l2cap_seq_list { … }; #define L2CAP_SEQ_LIST_CLEAR … #define L2CAP_SEQ_LIST_TAIL … struct l2cap_chan { … }; struct l2cap_ops { … }; struct l2cap_conn { … }; struct l2cap_user { … }; #define L2CAP_INFO_CL_MTU_REQ_SENT … #define L2CAP_INFO_FEAT_MASK_REQ_SENT … #define L2CAP_INFO_FEAT_MASK_REQ_DONE … #define L2CAP_CHAN_RAW … #define L2CAP_CHAN_CONN_LESS … #define L2CAP_CHAN_CONN_ORIENTED … #define L2CAP_CHAN_FIXED … /* ----- L2CAP socket info ----- */ #define l2cap_pi(sk) … struct l2cap_rx_busy { … }; struct l2cap_pinfo { … }; enum { … }; #define L2CAP_CONF_MAX_CONF_REQ … #define L2CAP_CONF_MAX_CONF_RSP … enum { … }; /* Definitions for flags in l2cap_chan */ enum { … }; /* Lock nesting levels for L2CAP channels. We need these because lockdep * otherwise considers all channels equal and will e.g. complain about a * connection oriented channel triggering SMP procedures or a listening * channel creating and locking a child channel. */ enum { … }; enum { … }; enum { … }; enum { … }; enum { … }; enum { … }; enum { … }; void l2cap_chan_hold(struct l2cap_chan *c); struct l2cap_chan *l2cap_chan_hold_unless_zero(struct l2cap_chan *c); void l2cap_chan_put(struct l2cap_chan *c); static inline void l2cap_chan_lock(struct l2cap_chan *chan) { … } static inline void l2cap_chan_unlock(struct l2cap_chan *chan) { … } static inline void l2cap_set_timer(struct l2cap_chan *chan, struct delayed_work *work, long timeout) { … } static inline bool l2cap_clear_timer(struct l2cap_chan *chan, struct delayed_work *work) { … } #define __set_chan_timer(c, t) … #define __clear_chan_timer(c) … #define __clear_retrans_timer(c) … #define __clear_monitor_timer(c) … #define __set_ack_timer(c) … #define __clear_ack_timer(c) … static inline int __seq_offset(struct l2cap_chan *chan, __u16 seq1, __u16 seq2) { … } static inline __u16 __next_seq(struct l2cap_chan *chan, __u16 seq) { … } static inline struct l2cap_chan *l2cap_chan_no_new_connection(struct l2cap_chan *chan) { … } static inline int l2cap_chan_no_recv(struct l2cap_chan *chan, struct sk_buff *skb) { … } static inline struct sk_buff *l2cap_chan_no_alloc_skb(struct l2cap_chan *chan, unsigned long hdr_len, unsigned long len, int nb) { … } static inline void l2cap_chan_no_teardown(struct l2cap_chan *chan, int err) { … } static inline void l2cap_chan_no_close(struct l2cap_chan *chan) { … } static inline void l2cap_chan_no_ready(struct l2cap_chan *chan) { … } static inline void l2cap_chan_no_state_change(struct l2cap_chan *chan, int state, int err) { … } static inline void l2cap_chan_no_defer(struct l2cap_chan *chan) { … } static inline void l2cap_chan_no_suspend(struct l2cap_chan *chan) { … } static inline void l2cap_chan_no_resume(struct l2cap_chan *chan) { … } static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan) { … } static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan) { … } extern bool disable_ertm; extern bool enable_ecred; int l2cap_init_sockets(void); void l2cap_cleanup_sockets(void); bool l2cap_is_socket(struct socket *sock); void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan); void __l2cap_ecred_conn_rsp_defer(struct l2cap_chan *chan); void __l2cap_connect_rsp_defer(struct l2cap_chan *chan); int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm); int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid); struct l2cap_chan *l2cap_chan_create(void); void l2cap_chan_close(struct l2cap_chan *chan, int reason); int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, bdaddr_t *dst, u8 dst_type, u16 timeout); int l2cap_chan_reconfigure(struct l2cap_chan *chan, __u16 mtu); int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len); void l2cap_chan_busy(struct l2cap_chan *chan, int busy); void l2cap_chan_rx_avail(struct l2cap_chan *chan, ssize_t rx_avail); int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator); void l2cap_chan_set_defaults(struct l2cap_chan *chan); int l2cap_ertm_init(struct l2cap_chan *chan); void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan); l2cap_chan_func_t; void l2cap_chan_list(struct l2cap_conn *conn, l2cap_chan_func_t func, void *data); void l2cap_chan_del(struct l2cap_chan *chan, int err); void l2cap_send_conn_req(struct l2cap_chan *chan); void l2cap_move_start(struct l2cap_chan *chan); void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, u8 status); void __l2cap_physical_cfm(struct l2cap_chan *chan, int result); struct l2cap_conn *l2cap_conn_get(struct l2cap_conn *conn); void l2cap_conn_put(struct l2cap_conn *conn); int l2cap_register_user(struct l2cap_conn *conn, struct l2cap_user *user); void l2cap_unregister_user(struct l2cap_conn *conn, struct l2cap_user *user); #endif /* __L2CAP_H */
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