sys/netgraph7/bluetooth/include/ng_btsocket_rfcomm.h

   1 /*
   2  * ng_btsocket_rfcomm.h
   3  */
   4
   5 /*-
   6  * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   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  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $Id: ng_btsocket_rfcomm.h,v 1.10 2003/03/29 22:27:42 max Exp $
  31  * $FreeBSD: src/sys/netgraph/bluetooth/include/ng_btsocket_rfcomm.h,v 1.8 2006/07/21 17:11:13 rwatson Exp $
  32  */
  33
  34 #ifndef _NETGRAPH_BTSOCKET_RFCOMM_H_
  35 #define _NETGRAPH_BTSOCKET_RFCOMM_H_
  36
  37 /*****************************************************************************
  38  *****************************************************************************
  39  **                              RFCOMM                                     **
  40  *****************************************************************************
  41  *****************************************************************************/
  42
  43 /* XXX FIXME this does not belong here */
  44
  45 #define RFCOMM_DEFAULT_MTU              667
  46 #define RFCOMM_MAX_MTU                  1024
  47
  48 #define RFCOMM_DEFAULT_CREDITS          7
  49 #define RFCOMM_MAX_CREDITS              40
  50
  51 /* RFCOMM frame types */
  52 #define RFCOMM_FRAME_SABM               0x2f
  53 #define RFCOMM_FRAME_DISC               0x43
  54 #define RFCOMM_FRAME_UA                 0x63
  55 #define RFCOMM_FRAME_DM                 0x0f
  56 #define RFCOMM_FRAME_UIH                0xef
  57
  58 /* RFCOMM MCC commands */
  59 #define RFCOMM_MCC_TEST                 0x08 /* Test */
  60 #define RFCOMM_MCC_FCON                 0x28 /* Flow Control on */
  61 #define RFCOMM_MCC_FCOFF                0x18 /* Flow Control off */
  62 #define RFCOMM_MCC_MSC                  0x38 /* Modem Status Command */
  63 #define RFCOMM_MCC_RPN                  0x24 /* Remote Port Negotiation */
  64 #define RFCOMM_MCC_RLS                  0x14 /* Remote Line Status */
  65 #define RFCOMM_MCC_PN                   0x20 /* Port Negotiation */
  66 #define RFCOMM_MCC_NSC                  0x04 /* Non Supported Command */
  67
  68 /* RFCOMM modem signals */
  69 #define RFCOMM_MODEM_FC                 0x02 /* Flow Control asserted */
  70 #define RFCOMM_MODEM_RTC                0x04 /* Ready To Communicate */
  71 #define RFCOMM_MODEM_RTR                0x08 /* Ready To Receive */
  72 #define RFCOMM_MODEM_IC                 0x40 /* Incomming Call */
  73 #define RFCOMM_MODEM_DV                 0x80 /* Data Valid */
  74
  75 /* RPN parameters - baud rate */
  76 #define RFCOMM_RPN_BR_2400              0x0
  77 #define RFCOMM_RPN_BR_4800              0x1
  78 #define RFCOMM_RPN_BR_7200              0x2
  79 #define RFCOMM_RPN_BR_9600              0x3
  80 #define RFCOMM_RPN_BR_19200             0x4
  81 #define RFCOMM_RPN_BR_38400             0x5
  82 #define RFCOMM_RPN_BR_57600             0x6
  83 #define RFCOMM_RPN_BR_115200            0x7
  84 #define RFCOMM_RPN_BR_230400            0x8
  85
  86 /* RPN parameters - data bits */
  87 #define RFCOMM_RPN_DATA_5               0x0
  88 #define RFCOMM_RPN_DATA_6               0x1
  89 #define RFCOMM_RPN_DATA_7               0x2
  90 #define RFCOMM_RPN_DATA_8               0x3
  91
  92 /* RPN parameters - stop bit */
  93 #define RFCOMM_RPN_STOP_1               0
  94 #define RFCOMM_RPN_STOP_15              1
  95
  96 /* RPN parameters - parity */
  97 #define RFCOMM_RPN_PARITY_NONE          0x0
  98 #define RFCOMM_RPN_PARITY_ODD           0x4
  99 #define RFCOMM_RPN_PARITY_EVEN          0x5
 100 #define RFCOMM_RPN_PARITY_MARK          0x6
 101 #define RFCOMM_RPN_PARITY_SPACE         0x7
 102
 103 /* RPN parameters - flow control */
 104 #define RFCOMM_RPN_FLOW_NONE            0x00
 105 #define RFCOMM_RPN_XON_CHAR             0x11
 106 #define RFCOMM_RPN_XOFF_CHAR            0x13
 107
 108 /* RPN parameters - mask */
 109 #define RFCOMM_RPN_PM_BITRATE           0x0001
 110 #define RFCOMM_RPN_PM_DATA              0x0002
 111 #define RFCOMM_RPN_PM_STOP              0x0004
 112 #define RFCOMM_RPN_PM_PARITY            0x0008
 113 #define RFCOMM_RPN_PM_PARITY_TYPE       0x0010
 114 #define RFCOMM_RPN_PM_XON               0x0020
 115 #define RFCOMM_RPN_PM_XOFF              0x0040
 116 #define RFCOMM_RPN_PM_FLOW              0x3F00
 117 #define RFCOMM_RPN_PM_ALL               0x3F7F
 118
 119 /* RFCOMM frame header */
 120 struct rfcomm_frame_hdr
 121 {
 122         u_int8_t        address;
 123         u_int8_t        control;
 124         u_int8_t        length; /* Actual size could be 2 bytes */
 125 } __attribute__ ((packed));
 126
 127 /* RFCOMM command frame header */
 128 struct rfcomm_cmd_hdr
 129 {
 130         u_int8_t        address;
 131         u_int8_t        control;
 132         u_int8_t        length;
 133         u_int8_t        fcs;
 134 } __attribute__ ((packed));
 135
 136 /* RFCOMM MCC command header */
 137 struct rfcomm_mcc_hdr
 138 {
 139         u_int8_t        type;
 140         u_int8_t        length; /* XXX FIXME Can actual size be 2 bytes?? */
 141 } __attribute__ ((packed));
 142
 143 /* RFCOMM MSC command */
 144 struct rfcomm_mcc_msc
 145 {
 146         u_int8_t        address;
 147         u_int8_t        modem;
 148 } __attribute__ ((packed));
 149
 150 /* RFCOMM RPN command */
 151 struct rfcomm_mcc_rpn
 152 {
 153         u_int8_t        dlci;
 154         u_int8_t        bit_rate;
 155         u_int8_t        line_settings;
 156         u_int8_t        flow_control;
 157         u_int8_t        xon_char;
 158         u_int8_t        xoff_char;
 159         u_int16_t       param_mask;
 160 } __attribute__ ((packed));
 161
 162 /* RFCOMM RLS command */
 163 struct rfcomm_mcc_rls
 164 {
 165         u_int8_t        address;
 166         u_int8_t        status;
 167 } __attribute__ ((packed));
 168
 169 /* RFCOMM PN command */
 170 struct rfcomm_mcc_pn
 171 {
 172         u_int8_t        dlci;
 173         u_int8_t        flow_control;
 174         u_int8_t        priority;
 175         u_int8_t        ack_timer;
 176         u_int16_t       mtu;
 177         u_int8_t        max_retrans;
 178         u_int8_t        credits;
 179 } __attribute__ ((packed));
 180
 181 /* RFCOMM frame parsing macros */
 182 #define RFCOMM_DLCI(b)                  (((b) & 0xfc) >> 2)
 183 #define RFCOMM_CHANNEL(b)               (((b) & 0xf8) >> 3)
 184 #define RFCOMM_DIRECTION(b)             (((b) & 0x04) >> 2)
 185 #define RFCOMM_TYPE(b)                  (((b) & 0xef))
 186
 187 #define RFCOMM_EA(b)                    (((b) & 0x01))
 188 #define RFCOMM_CR(b)                    (((b) & 0x02) >> 1)
 189 #define RFCOMM_PF(b)                    (((b) & 0x10) >> 4)
 190
 191 #define RFCOMM_SRVCHANNEL(dlci)         ((dlci) >> 1)
 192
 193 #define RFCOMM_MKADDRESS(cr, dlci) \
 194         ((((dlci) & 0x3f) << 2) | ((cr) << 1) | 0x01)
 195
 196 #define RFCOMM_MKCONTROL(type, pf)      ((((type) & 0xef) | ((pf) << 4)))
 197 #define RFCOMM_MKDLCI(dir, channel)     ((((channel) & 0x1f) << 1) | (dir))
 198
 199 #define RFCOMM_MKLEN8(len)              (((len) << 1) | 1)
 200 #define RFCOMM_MKLEN16(len)             ((len) << 1)
 201
 202 /* RFCOMM MCC macros */
 203 #define RFCOMM_MCC_TYPE(b)              (((b) & 0xfc) >> 2)
 204 #define RFCOMM_MCC_LENGTH(b)            (((b) & 0xfe) >> 1)
 205 #define RFCOMM_MKMCC_TYPE(cr, type)     ((((type) << 2) | ((cr) << 1) | 0x01))
 206
 207 /* RPN macros */
 208 #define RFCOMM_RPN_DATA_BITS(line)      ((line) & 0x3)
 209 #define RFCOMM_RPN_STOP_BITS(line)      (((line) >> 2) & 0x1)
 210 #define RFCOMM_RPN_PARITY(line)         (((line) >> 3) & 0x3)
 211 #define RFCOMM_MKRPN_LINE_SETTINGS(data, stop, parity) \
 212         (((data) & 0x3) | (((stop) & 0x1) << 2) | (((parity) & 0x3) << 3))
 213
 214 /*****************************************************************************
 215  *****************************************************************************
 216  **                      SOCK_STREAM RFCOMM sockets                         **
 217  *****************************************************************************
 218  *****************************************************************************/
 219
 220 #define NG_BTSOCKET_RFCOMM_SENDSPACE \
 221         (RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 2)
 222 #define NG_BTSOCKET_RFCOMM_RECVSPACE \
 223         (RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 2)
 224
 225 /*
 226  * Bluetooth RFCOMM session. One L2CAP connection == one RFCOMM session
 227  */
 228
 229 struct ng_btsocket_rfcomm_pcb;
 230 struct ng_btsocket_rfcomm_session;
 231
 232 struct ng_btsocket_rfcomm_session {
 233         struct socket                           *l2so;   /* L2CAP socket */
 234
 235         u_int16_t                                state;  /* session state */
 236 #define NG_BTSOCKET_RFCOMM_SESSION_CLOSED        0
 237 #define NG_BTSOCKET_RFCOMM_SESSION_LISTENING     1
 238 #define NG_BTSOCKET_RFCOMM_SESSION_CONNECTING    2
 239 #define NG_BTSOCKET_RFCOMM_SESSION_CONNECTED     3
 240 #define NG_BTSOCKET_RFCOMM_SESSION_OPEN          4
 241 #define NG_BTSOCKET_RFCOMM_SESSION_DISCONNECTING 5
 242
 243         u_int16_t                                flags;  /* session flags */
 244 #define NG_BTSOCKET_RFCOMM_SESSION_INITIATOR    (1 << 0) /* initiator */
 245 #define NG_BTSOCKET_RFCOMM_SESSION_LFC          (1 << 1) /* local flow */
 246 #define NG_BTSOCKET_RFCOMM_SESSION_RFC          (1 << 2) /* remote flow */
 247
 248 #define INITIATOR(s) \
 249         (((s)->flags & NG_BTSOCKET_RFCOMM_SESSION_INITIATOR)? 1 : 0)
 250
 251         u_int16_t                                mtu;    /* default MTU */
 252         struct ng_bt_mbufq                       outq;   /* outgoing queue */
 253
 254         struct mtx                               session_mtx; /* session lock */
 255         LIST_HEAD(, ng_btsocket_rfcomm_pcb)      dlcs;   /* active DLC */
 256
 257         LIST_ENTRY(ng_btsocket_rfcomm_session)   next;   /* link to next */
 258 };
 259 typedef struct ng_btsocket_rfcomm_session       ng_btsocket_rfcomm_session_t;
 260 typedef struct ng_btsocket_rfcomm_session *     ng_btsocket_rfcomm_session_p;
 261
 262 /*
 263  * Bluetooth RFCOMM socket PCB (DLC)
 264  */
 265
 266 struct ng_btsocket_rfcomm_pcb {
 267         struct socket                           *so;      /* RFCOMM socket */
 268         struct ng_btsocket_rfcomm_session       *session; /* RFCOMM session */
 269
 270         u_int16_t                                flags;   /* DLC flags */
 271 #define NG_BTSOCKET_RFCOMM_DLC_TIMO             (1 << 0)  /* timeout pending */
 272 #define NG_BTSOCKET_RFCOMM_DLC_CFC              (1 << 1)  /* credit flow ctrl */
 273 #define NG_BTSOCKET_RFCOMM_DLC_TIMEDOUT         (1 << 2)  /* timeout happend */
 274 #define NG_BTSOCKET_RFCOMM_DLC_DETACHED         (1 << 3)  /* DLC detached */
 275 #define NG_BTSOCKET_RFCOMM_DLC_SENDING          (1 << 4)  /* send pending */
 276
 277         u_int16_t                                state;   /* DLC state */
 278 #define NG_BTSOCKET_RFCOMM_DLC_CLOSED           0
 279 #define NG_BTSOCKET_RFCOMM_DLC_W4_CONNECT       1
 280 #define NG_BTSOCKET_RFCOMM_DLC_CONFIGURING      2
 281 #define NG_BTSOCKET_RFCOMM_DLC_CONNECTING       3
 282 #define NG_BTSOCKET_RFCOMM_DLC_CONNECTED        4
 283 #define NG_BTSOCKET_RFCOMM_DLC_DISCONNECTING    5
 284
 285         bdaddr_t                                 src;     /* source address */
 286         bdaddr_t                                 dst;     /* dest. address */
 287
 288         u_int8_t                                 channel; /* RFCOMM channel */
 289         u_int8_t                                 dlci;    /* RFCOMM DLCI */
 290
 291         u_int8_t                                 lmodem;  /* local mdm signls */
 292         u_int8_t                                 rmodem;  /* remote -/- */
 293
 294         u_int16_t                                mtu;     /* MTU */
 295         int16_t                                  rx_cred; /* RX credits */
 296         int16_t                                  tx_cred; /* TX credits */
 297
 298         struct mtx                               pcb_mtx; /* PCB lock */
 299         struct callout_handle                    timo;    /* timeout */
 300
 301         LIST_ENTRY(ng_btsocket_rfcomm_pcb)       session_next;/* link to next */
 302         LIST_ENTRY(ng_btsocket_rfcomm_pcb)       next;    /* link to next */
 303 };
 304 typedef struct ng_btsocket_rfcomm_pcb   ng_btsocket_rfcomm_pcb_t;
 305 typedef struct ng_btsocket_rfcomm_pcb * ng_btsocket_rfcomm_pcb_p;
 306
 307 #define so2rfcomm_pcb(so) \
 308         ((struct ng_btsocket_rfcomm_pcb *)((so)->so_pcb))
 309
 310 /*
 311  * Bluetooth RFCOMM socket methods
 312  */
 313
 314 #ifdef _KERNEL
 315
 316 void ng_btsocket_rfcomm_init       (void);
 317 void ng_btsocket_rfcomm_abort      (struct socket *);
 318 void ng_btsocket_rfcomm_close      (struct socket *);
 319 int  ng_btsocket_rfcomm_accept     (struct socket *, struct sockaddr **);
 320 int  ng_btsocket_rfcomm_attach     (struct socket *, int, struct thread *);
 321 int  ng_btsocket_rfcomm_bind       (struct socket *, struct sockaddr *,
 322                                     struct thread *);
 323 int  ng_btsocket_rfcomm_connect    (struct socket *, struct sockaddr *,
 324                                     struct thread *);
 325 int  ng_btsocket_rfcomm_control    (struct socket *, u_long, caddr_t,
 326                                     struct ifnet *, struct thread *);
 327 int  ng_btsocket_rfcomm_ctloutput  (struct socket *, struct sockopt *);
 328 void ng_btsocket_rfcomm_detach     (struct socket *);
 329 int  ng_btsocket_rfcomm_disconnect (struct socket *);
 330 int  ng_btsocket_rfcomm_listen     (struct socket *, int, struct thread *);
 331 int  ng_btsocket_rfcomm_peeraddr   (struct socket *, struct sockaddr **);
 332 int  ng_btsocket_rfcomm_send       (struct socket *, int, struct mbuf *,
 333                                     struct sockaddr *, struct mbuf *,
 334                                     struct thread *);
 335 int  ng_btsocket_rfcomm_sockaddr   (struct socket *, struct sockaddr **);
 336
 337 #endif /* _KERNEL */
 338
 339 #endif /* _NETGRAPH_BTSOCKET_RFCOMM_H_ */
 340