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Annotation of sys/netbt/l2cap.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: l2cap.h,v 1.4 2007/06/01 02:46:11 uwe Exp $   */
        !             2: /*     $NetBSD: l2cap.h,v 1.5 2007/04/21 06:15:23 plunky Exp $ */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 2005 Iain Hibbert.
        !             6:  * Copyright (c) 2006 Itronix Inc.
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. The name of Itronix Inc. may not be used to endorse
        !            18:  *    or promote products derived from this software without specific
        !            19:  *    prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            23:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            24:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
        !            25:  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            26:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
        !            27:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
        !            28:  * ON ANY THEORY OF LIABILITY, WHETHER IN
        !            29:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            30:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            31:  * POSSIBILITY OF SUCH DAMAGE.
        !            32:  */
        !            33: /*-
        !            34:  * Copyright (c) Maksim Yevmenkin <m_evmenkin@yahoo.com>
        !            35:  * All rights reserved.
        !            36:  *
        !            37:  * Redistribution and use in source and binary forms, with or without
        !            38:  * modification, are permitted provided that the following conditions
        !            39:  * are met:
        !            40:  * 1. Redistributions of source code must retain the above copyright
        !            41:  *    notice, this list of conditions and the following disclaimer.
        !            42:  * 2. Redistributions in binary form must reproduce the above copyright
        !            43:  *    notice, this list of conditions and the following disclaimer in the
        !            44:  *    documentation and/or other materials provided with the distribution.
        !            45:  *
        !            46:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            49:  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            56:  * SUCH DAMAGE.
        !            57:  *
        !            58:  * $Id: l2cap.h,v 1.4 2007/06/01 02:46:11 uwe Exp $
        !            59:  * $FreeBSD: src/sys/netgraph/bluetooth/include/l2cap.h,v 1.4 2005/08/31 18:13:23 emax Exp $
        !            60:  */
        !            61:
        !            62: /*
        !            63:  * This file contains everything that application needs to know about
        !            64:  * Link Layer Control and Adaptation Protocol (L2CAP). All information
        !            65:  * was obtained from Bluetooth Specification Books (v1.1 and up)
        !            66:  *
        !            67:  * This file can be included by both kernel and userland applications.
        !            68:  */
        !            69:
        !            70: #ifndef _NETBT_L2CAP_H_
        !            71: #define _NETBT_L2CAP_H_
        !            72:
        !            73: #include <sys/types.h>
        !            74:
        !            75: /**************************************************************************
        !            76:  **************************************************************************
        !            77:  **                   Common defines and types (L2CAP)
        !            78:  **************************************************************************
        !            79:  **************************************************************************/
        !            80:
        !            81: /*
        !            82:  * Channel IDs are assigned per machine. So the total number of channels that
        !            83:  * a machine can have open at the same time is 0xffff - 0x0040 = 0xffbf (65471).
        !            84:  * This number does not depend on number of HCI connections.
        !            85:  */
        !            86:
        !            87: #define L2CAP_NULL_CID                 0x0000  /* DO NOT USE THIS CID */
        !            88: #define L2CAP_SIGNAL_CID               0x0001  /* signaling channel ID */
        !            89: #define L2CAP_CLT_CID                  0x0002  /* connectionless channel ID */
        !            90:        /* 0x0003 - 0x003f Reserved */
        !            91: #define L2CAP_FIRST_CID                        0x0040  /* dynamically alloc. (start) */
        !            92: #define L2CAP_LAST_CID                 0xffff  /* dynamically alloc. (end) */
        !            93:
        !            94: /* L2CAP MTU */
        !            95: #define L2CAP_MTU_MINIMUM              48
        !            96: #define L2CAP_MTU_DEFAULT              672
        !            97: #define L2CAP_MTU_MAXIMUM              0xffff
        !            98:
        !            99: /* L2CAP flush and link timeouts */
        !           100: #define L2CAP_FLUSH_TIMO_DEFAULT       0xffff /* always retransmit */
        !           101: #define L2CAP_LINK_TIMO_DEFAULT                0xffff
        !           102:
        !           103: /* L2CAP Command Reject reasons */
        !           104: #define L2CAP_REJ_NOT_UNDERSTOOD       0x0000
        !           105: #define L2CAP_REJ_MTU_EXCEEDED         0x0001
        !           106: #define L2CAP_REJ_INVALID_CID          0x0002
        !           107: /* 0x0003 - 0xffff - reserved for future use */
        !           108:
        !           109: /* Protocol/Service Multiplexor (PSM) values */
        !           110: #define L2CAP_PSM_ANY                  0x0000  /* Any/Invalid PSM */
        !           111: #define L2CAP_PSM_SDP                  0x0001  /* Service Discovery Protocol */
        !           112: #define L2CAP_PSM_RFCOMM               0x0003  /* RFCOMM protocol */
        !           113: #define L2CAP_PSM_TCP                  0x0005  /* Telephony Control Protocol */
        !           114: #define L2CAP_PSM_TCS                  0x0007  /* TCS cordless */
        !           115: #define L2CAP_PSM_BNEP                 0x000f  /* Bluetooth Network */
        !           116:                                                /*      Encapsulation Protocol*/
        !           117: #define L2CAP_PSM_HID_CNTL             0x0011  /* HID Control */
        !           118: #define L2CAP_PSM_HID_INTR             0x0013  /* HID Interrupt */
        !           119: #define L2CAP_PSM_ESDP                 0x0015  /* Extended Service */
        !           120:                                                /*      Discovery Profile */
        !           121: #define L2CAP_PSM_AVCTP                        0x0017  /* Audio/Visual Control */
        !           122:                                                /*      Transport Protocol */
        !           123: #define L2CAP_PSM_AVDTP                        0x0019  /* Audio/Visual Distribution */
        !           124:                                                /*      Transport Protocol */
        !           125: /* 0x0019 - 0x1000 - reserved for future use */
        !           126:
        !           127: #define L2CAP_PSM_INVALID(psm)         (((psm) & 0x0101) != 0x0001)
        !           128:
        !           129: /* L2CAP Connection response command result codes */
        !           130: #define L2CAP_SUCCESS                  0x0000
        !           131: #define L2CAP_PENDING                  0x0001
        !           132: #define L2CAP_PSM_NOT_SUPPORTED                0x0002
        !           133: #define L2CAP_SECURITY_BLOCK           0x0003
        !           134: #define L2CAP_NO_RESOURCES             0x0004
        !           135: #define L2CAP_TIMEOUT                  0xeeee
        !           136: #define L2CAP_UNKNOWN                  0xffff
        !           137: /* 0x0005 - 0xffff - reserved for future use */
        !           138:
        !           139: /* L2CAP Connection response status codes */
        !           140: #define L2CAP_NO_INFO                  0x0000
        !           141: #define L2CAP_AUTH_PENDING             0x0001
        !           142: #define L2CAP_AUTZ_PENDING             0x0002
        !           143: /* 0x0003 - 0xffff - reserved for future use */
        !           144:
        !           145: /* L2CAP Configuration response result codes */
        !           146: #define L2CAP_UNACCEPTABLE_PARAMS      0x0001
        !           147: #define L2CAP_REJECT                   0x0002
        !           148: #define L2CAP_UNKNOWN_OPTION           0x0003
        !           149: /* 0x0003 - 0xffff - reserved for future use */
        !           150:
        !           151: /* L2CAP Configuration options */
        !           152: #define L2CAP_OPT_CFLAG_BIT            0x0001
        !           153: #define L2CAP_OPT_CFLAG(flags)         ((flags) & L2CAP_OPT_CFLAG_BIT)
        !           154: #define L2CAP_OPT_HINT_BIT             0x80
        !           155: #define L2CAP_OPT_HINT(type)           ((type) & L2CAP_OPT_HINT_BIT)
        !           156: #define L2CAP_OPT_HINT_MASK            0x7f
        !           157: #define L2CAP_OPT_MTU                  0x01
        !           158: #define L2CAP_OPT_MTU_SIZE             sizeof(uint16_t)
        !           159: #define L2CAP_OPT_FLUSH_TIMO           0x02
        !           160: #define L2CAP_OPT_FLUSH_TIMO_SIZE      sizeof(uint16_t)
        !           161: #define L2CAP_OPT_QOS                  0x03
        !           162: #define L2CAP_OPT_QOS_SIZE             sizeof(l2cap_qos_t)
        !           163: #define L2CAP_OPT_RFC                  0x04
        !           164: #define L2CAP_OPT_RFC_SIZE             sizeof(l2cap_rfc_t)
        !           165: /* 0x05 - 0xff - reserved for future use */
        !           166:
        !           167: /* L2CAP Information request type codes */
        !           168: #define L2CAP_CONNLESS_MTU             0x0001
        !           169: #define L2CAP_EXTENDED_FEATURES                0x0002
        !           170: /* 0x0003 - 0xffff - reserved for future use */
        !           171:
        !           172: /* L2CAP Information response codes */
        !           173: #define L2CAP_NOT_SUPPORTED            0x0001
        !           174: /* 0x0002 - 0xffff - reserved for future use */
        !           175:
        !           176: /* L2CAP Quality of Service option */
        !           177: typedef struct {
        !           178:        uint8_t  flags;                 /* reserved for future use */
        !           179:        uint8_t  service_type;          /* service type */
        !           180:        uint32_t token_rate;            /* bytes per second */
        !           181:        uint32_t token_bucket_size;     /* bytes */
        !           182:        uint32_t peak_bandwidth;        /* bytes per second */
        !           183:        uint32_t latency;               /* microseconds */
        !           184:        uint32_t delay_variation;       /* microseconds */
        !           185: } __attribute__ ((__packed__)) l2cap_qos_t;
        !           186:
        !           187: /* L2CAP QoS type */
        !           188: #define L2CAP_QOS_NO_TRAFFIC   0x00
        !           189: #define L2CAP_QOS_BEST_EFFORT  0x01       /* (default) */
        !           190: #define L2CAP_QOS_GUARANTEED   0x02
        !           191: /* 0x03 - 0xff - reserved for future use */
        !           192:
        !           193: /* L2CAP Retransmission & Flow Control option */
        !           194: typedef struct {
        !           195:        uint8_t mode;              /* RFC mode */
        !           196:        uint8_t window_size;       /* bytes */
        !           197:        uint8_t max_transmit;      /* max retransmissions */
        !           198:        uint16_t        retransmit_timo;   /* milliseconds */
        !           199:        uint16_t        monitor_timo;      /* milliseconds */
        !           200:        uint16_t        max_pdu_size;      /* bytes */
        !           201: } __attribute__ ((__packed__)) l2cap_rfc_t;
        !           202:
        !           203: /* L2CAP RFC mode */
        !           204: #define L2CAP_RFC_BASIC                0x00       /* (default) */
        !           205: #define L2CAP_RFC_RETRANSMIT   0x01
        !           206: #define L2CAP_RFC_FLOW         0x02
        !           207: /* 0x03 - 0xff - reserved for future use */
        !           208:
        !           209: /**************************************************************************
        !           210:  **************************************************************************
        !           211:  **                 Link level defines, headers and types
        !           212:  **************************************************************************
        !           213:  **************************************************************************/
        !           214:
        !           215: /* L2CAP header */
        !           216: typedef struct {
        !           217:        uint16_t        length; /* payload size */
        !           218:        uint16_t        dcid;   /* destination channel ID */
        !           219: } __attribute__ ((__packed__)) l2cap_hdr_t;
        !           220:
        !           221: /* L2CAP ConnectionLess Traffic                (dcid == L2CAP_CLT_CID) */
        !           222: typedef struct {
        !           223:        uint16_t        psm; /* Protocol/Service Multiplexor */
        !           224: } __attribute__ ((__packed__)) l2cap_clt_hdr_t;
        !           225:
        !           226: #define L2CAP_CLT_MTU_MAXIMUM \
        !           227:        (L2CAP_MTU_MAXIMUM - sizeof(l2cap_clt_hdr_t))
        !           228:
        !           229: /* L2CAP Command header                        (dcid == L2CAP_SIGNAL_CID) */
        !           230: typedef struct {
        !           231:        uint8_t code;   /* command OpCode */
        !           232:        uint8_t ident;  /* identifier to match request and response */
        !           233:        uint16_t        length; /* command parameters length */
        !           234: } __attribute__ ((__packed__)) l2cap_cmd_hdr_t;
        !           235:
        !           236: /* L2CAP Command Reject */
        !           237: #define L2CAP_COMMAND_REJ                      0x01
        !           238: typedef struct {
        !           239:        uint16_t        reason; /* reason to reject command */
        !           240:        uint16_t        data[2];/* optional data */
        !           241: } __attribute__ ((__packed__)) l2cap_cmd_rej_cp;
        !           242:
        !           243: /* L2CAP Connection Request */
        !           244: #define L2CAP_CONNECT_REQ                      0x02
        !           245: typedef struct {
        !           246:        uint16_t        psm;  /* Protocol/Service Multiplexor (PSM) */
        !           247:        uint16_t        scid; /* source channel ID */
        !           248: } __attribute__ ((__packed__)) l2cap_con_req_cp;
        !           249:
        !           250: /* L2CAP Connection Response */
        !           251: #define L2CAP_CONNECT_RSP                      0x03
        !           252: typedef struct {
        !           253:        uint16_t        dcid;   /* destination channel ID */
        !           254:        uint16_t        scid;   /* source channel ID */
        !           255:        uint16_t        result; /* 0x00 - success */
        !           256:        uint16_t        status; /* more info if result != 0x00 */
        !           257: } __attribute__ ((__packed__)) l2cap_con_rsp_cp;
        !           258:
        !           259: /* L2CAP Configuration Request */
        !           260: #define L2CAP_CONFIG_REQ                       0x04
        !           261: typedef struct {
        !           262:        uint16_t        dcid;  /* destination channel ID */
        !           263:        uint16_t        flags; /* flags */
        !           264: /*     uint8_t options[] --  options */
        !           265: } __attribute__ ((__packed__)) l2cap_cfg_req_cp;
        !           266:
        !           267: /* L2CAP Configuration Response */
        !           268: #define L2CAP_CONFIG_RSP                       0x05
        !           269: typedef struct {
        !           270:        uint16_t        scid;   /* source channel ID */
        !           271:        uint16_t        flags;  /* flags */
        !           272:        uint16_t        result; /* 0x00 - success */
        !           273: /*     uint8_t options[] -- options */
        !           274: } __attribute__ ((__packed__)) l2cap_cfg_rsp_cp;
        !           275:
        !           276: /* L2CAP configuration option */
        !           277: typedef struct {
        !           278:        uint8_t type;
        !           279:        uint8_t length;
        !           280: /*     uint8_t value[] -- option value (depends on type) */
        !           281: } __attribute__ ((__packed__)) l2cap_cfg_opt_t;
        !           282:
        !           283: /* L2CAP configuration option value */
        !           284: typedef union {
        !           285:        uint16_t                mtu;            /* L2CAP_OPT_MTU */
        !           286:        uint16_t                flush_timo;     /* L2CAP_OPT_FLUSH_TIMO */
        !           287:        l2cap_qos_t             qos;            /* L2CAP_OPT_QOS */
        !           288:        l2cap_rfc_t             rfc;            /* L2CAP_OPT_RFC */
        !           289: } l2cap_cfg_opt_val_t;
        !           290:
        !           291: /* L2CAP Disconnect Request */
        !           292: #define L2CAP_DISCONNECT_REQ                   0x06
        !           293: typedef struct {
        !           294:        uint16_t        dcid; /* destination channel ID */
        !           295:        uint16_t        scid; /* source channel ID */
        !           296: } __attribute__ ((__packed__)) l2cap_discon_req_cp;
        !           297:
        !           298: /* L2CAP Disconnect Response */
        !           299: #define L2CAP_DISCONNECT_RSP                   0x07
        !           300: typedef l2cap_discon_req_cp    l2cap_discon_rsp_cp;
        !           301:
        !           302: /* L2CAP Echo Request */
        !           303: #define L2CAP_ECHO_REQ                         0x08
        !           304: /* No command parameters, only optional data */
        !           305:
        !           306: /* L2CAP Echo Response */
        !           307: #define L2CAP_ECHO_RSP                         0x09
        !           308: #define L2CAP_MAX_ECHO_SIZE \
        !           309:        (L2CAP_MTU_MAXIMUM - sizeof(l2cap_cmd_hdr_t))
        !           310: /* No command parameters, only optional data */
        !           311:
        !           312: /* L2CAP Information Request */
        !           313: #define L2CAP_INFO_REQ                         0x0a
        !           314: typedef struct {
        !           315:        uint16_t        type; /* requested information type */
        !           316: } __attribute__ ((__packed__)) l2cap_info_req_cp;
        !           317:
        !           318: /* L2CAP Information Response */
        !           319: #define L2CAP_INFO_RSP                         0x0b
        !           320: typedef struct {
        !           321:        uint16_t        type;   /* requested information type */
        !           322:        uint16_t        result; /* 0x00 - success */
        !           323: /*     uint8_t info[]  -- info data (depends on type)
        !           324:  *
        !           325:  * L2CAP_CONNLESS_MTU - 2 bytes connectionless MTU
        !           326:  */
        !           327: } __attribute__ ((__packed__)) l2cap_info_rsp_cp;
        !           328:
        !           329: typedef union {
        !           330:        /* L2CAP_CONNLESS_MTU */
        !           331:        struct {
        !           332:                uint16_t        mtu;
        !           333:        } __attribute__ ((__packed__)) mtu;
        !           334: } l2cap_info_rsp_data_t;
        !           335:
        !           336: /**************************************************************************
        !           337:  **************************************************************************
        !           338:  **            L2CAP Socket Definitions
        !           339:  **************************************************************************
        !           340:  **************************************************************************/
        !           341:
        !           342: /* Socket options */
        !           343: #define SO_L2CAP_IMTU          1       /* incoming MTU */
        !           344: #define SO_L2CAP_OMTU          2       /* outgoing MTU */
        !           345: #define SO_L2CAP_IQOS          3       /* incoming QoS */
        !           346: #define SO_L2CAP_OQOS          4       /* outgoing QoS */
        !           347: #define SO_L2CAP_FLUSH         5       /* flush timeout */
        !           348: #define SO_L2CAP_LM            6       /* link mode */
        !           349:
        !           350: /* L2CAP link mode flags */
        !           351: #define L2CAP_LM_AUTH          (1<<0)  /* want authentication */
        !           352: #define L2CAP_LM_ENCRYPT       (1<<1)  /* want encryption */
        !           353: #define L2CAP_LM_SECURE                (1<<2)  /* want secured link */
        !           354:
        !           355: #ifdef _KERNEL
        !           356:
        !           357: #include <net/if.h>            /* for struct ifqueue */
        !           358:
        !           359: LIST_HEAD(l2cap_channel_list, l2cap_channel);
        !           360:
        !           361: /* global variables */
        !           362: extern struct l2cap_channel_list l2cap_active_list;
        !           363: extern struct l2cap_channel_list l2cap_listen_list;
        !           364: extern struct pool l2cap_pdu_pool;
        !           365: extern struct pool l2cap_req_pool;
        !           366: extern const l2cap_qos_t l2cap_default_qos;
        !           367:
        !           368: /* sysctl variables */
        !           369: extern int l2cap_response_timeout;
        !           370: extern int l2cap_response_extended_timeout;
        !           371: extern int l2cap_sendspace, l2cap_recvspace;
        !           372:
        !           373: /*
        !           374:  * L2CAP Channel
        !           375:  */
        !           376: struct l2cap_channel {
        !           377:        struct hci_link         *lc_link;       /* ACL connection (down) */
        !           378:        uint16_t                 lc_state;      /* channel state */
        !           379:        uint16_t                 lc_flags;      /* channel flags */
        !           380:        uint8_t                  lc_ident;      /* cached request id */
        !           381:
        !           382:        uint16_t                 lc_lcid;       /* local channel ID */
        !           383:        struct sockaddr_bt       lc_laddr;      /* local address */
        !           384:
        !           385:        uint16_t                 lc_rcid;       /* remote channel ID */
        !           386:        struct sockaddr_bt       lc_raddr;      /* remote address */
        !           387:
        !           388:        int                      lc_mode;       /* link mode */
        !           389:        uint16_t                 lc_imtu;       /* incoming mtu */
        !           390:        uint16_t                 lc_omtu;       /* outgoing mtu */
        !           391:        uint16_t                 lc_flush;      /* flush timeout */
        !           392:        l2cap_qos_t              lc_iqos;       /* incoming QoS flow control */
        !           393:        l2cap_qos_t              lc_oqos;       /* outgoing Qos flow control */
        !           394:
        !           395:        uint8_t                  lc_pending;    /* num of pending PDUs */
        !           396:        struct ifqueue           lc_txq;        /* transmit queue */
        !           397:
        !           398:        const struct btproto    *lc_proto;      /* upper layer callbacks */
        !           399:        void                    *lc_upper;      /* upper layer argument */
        !           400:
        !           401:        LIST_ENTRY(l2cap_channel)lc_ncid;       /* next channel (ascending CID) */
        !           402: };
        !           403:
        !           404: /* l2cap_channel state */
        !           405: #define L2CAP_CLOSED                   0 /* closed */
        !           406: #define L2CAP_WAIT_SEND_CONNECT_REQ    1 /* waiting to send connect request */
        !           407: #define L2CAP_WAIT_RECV_CONNECT_RSP    2 /* waiting to recv connect response */
        !           408: #define L2CAP_WAIT_SEND_CONNECT_RSP    3 /* waiting to send connect response */
        !           409: #define L2CAP_WAIT_CONFIG              4 /* waiting for configuration */
        !           410: #define L2CAP_OPEN                     5 /* user data transfer state */
        !           411: #define L2CAP_WAIT_DISCONNECT          6 /* have sent disconnect request */
        !           412:
        !           413: /* l2cap_channel flags */
        !           414: #define L2CAP_SHUTDOWN         (1<<0)  /* channel is closing */
        !           415: #define L2CAP_WAIT_CONFIG_REQ  (1<<1)  /* waiting for config request */
        !           416: #define L2CAP_WAIT_CONFIG_RSP  (1<<2)  /* waiting for config response */
        !           417:
        !           418: /*
        !           419:  * L2CAP Request
        !           420:  */
        !           421: struct l2cap_req {
        !           422:        struct hci_link         *lr_link;       /* ACL connection */
        !           423:        struct l2cap_channel    *lr_chan;       /* channel pointer */
        !           424:        uint8_t                  lr_code;       /* request code */
        !           425:        uint8_t                  lr_id;         /* request id */
        !           426:        struct timeout           lr_rtx;        /* response timer */
        !           427:        TAILQ_ENTRY(l2cap_req)   lr_next;       /* next request on link */
        !           428: };
        !           429:
        !           430: /*
        !           431:  * L2CAP Protocol Data Unit
        !           432:  */
        !           433: struct l2cap_pdu {
        !           434:        struct l2cap_channel    *lp_chan;       /* PDU owner */
        !           435:        struct ifqueue           lp_data;       /* PDU data */
        !           436:        TAILQ_ENTRY(l2cap_pdu)   lp_next;       /* next PDU on link */
        !           437:        int                      lp_pending;    /* # of fragments pending */
        !           438: };
        !           439:
        !           440: /*
        !           441:  * L2CAP function prototypes
        !           442:  */
        !           443:
        !           444: struct socket;
        !           445: struct mbuf;
        !           446:
        !           447: /* l2cap_lower.c */
        !           448: void l2cap_close(struct l2cap_channel *, int);
        !           449: void l2cap_recv_frame(struct mbuf *, struct hci_link *);
        !           450: int l2cap_start(struct l2cap_channel *);
        !           451:
        !           452: /* l2cap_misc.c */
        !           453: void l2cap_init(void);
        !           454: int l2cap_setmode(struct l2cap_channel *);
        !           455: int l2cap_cid_alloc(struct l2cap_channel *);
        !           456: struct l2cap_channel *l2cap_cid_lookup(uint16_t);
        !           457: int l2cap_request_alloc(struct l2cap_channel *, uint8_t);
        !           458: struct l2cap_req *l2cap_request_lookup(struct hci_link *, uint8_t);
        !           459: void l2cap_request_free(struct l2cap_req *);
        !           460: void l2cap_rtx(void *);
        !           461:
        !           462: /* l2cap_signal.c */
        !           463: void l2cap_recv_signal(struct mbuf *, struct hci_link *);
        !           464: int l2cap_send_connect_req(struct l2cap_channel *);
        !           465: int l2cap_send_config_req(struct l2cap_channel *);
        !           466: int l2cap_send_disconnect_req(struct l2cap_channel *);
        !           467: int l2cap_send_connect_rsp(struct hci_link *, uint8_t, uint16_t, uint16_t, uint16_t);
        !           468:
        !           469: /* l2cap_socket.c */
        !           470: int l2cap_usrreq(struct socket *, int, struct mbuf *, struct mbuf *, struct mbuf *);
        !           471: int l2cap_ctloutput(int, struct socket *, int, int, struct mbuf **);
        !           472:
        !           473: /* l2cap_upper.c */
        !           474: int l2cap_attach(struct l2cap_channel **, const struct btproto *, void *);
        !           475: int l2cap_bind(struct l2cap_channel *, struct sockaddr_bt *);
        !           476: int l2cap_sockaddr(struct l2cap_channel *, struct sockaddr_bt *);
        !           477: int l2cap_connect(struct l2cap_channel *, struct sockaddr_bt *);
        !           478: int l2cap_peeraddr(struct l2cap_channel *, struct sockaddr_bt *);
        !           479: int l2cap_disconnect(struct l2cap_channel *, int);
        !           480: int l2cap_detach(struct l2cap_channel **);
        !           481: int l2cap_listen(struct l2cap_channel *);
        !           482: int l2cap_send(struct l2cap_channel *, struct mbuf *);
        !           483: int l2cap_setopt(struct l2cap_channel *, int, void *);
        !           484: int l2cap_getopt(struct l2cap_channel *, int, void *);
        !           485:
        !           486: #endif /* _KERNEL */
        !           487:
        !           488: #endif /* _NETBT_L2CAP_H_ */

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