1 files changed, 353 insertions, 0 deletions

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
new file mode 100644
index 000000000000..13669bad00b3
--- /dev/null
+++ b/include/net/bluetooth/rfcomm.h
@@ -0,0 +1,353 @@
+/* 
+   RFCOMM implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+   Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
+
+   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 __RFCOMM_H
+#define __RFCOMM_H
+
+#define RFCOMM_PSM 3
+
+#define RFCOMM_CONN_TIMEOUT (HZ * 30)
+#define RFCOMM_DISC_TIMEOUT (HZ * 20)
+#define RFCOMM_AUTH_TIMEOUT (HZ * 25)
+
+#define RFCOMM_DEFAULT_MTU      127
+#define RFCOMM_DEFAULT_CREDITS  7
+
+#define RFCOMM_MAX_L2CAP_MTU    1024
+#define RFCOMM_MAX_CREDITS      40
+
+#define RFCOMM_SKB_HEAD_RESERVE 8
+#define RFCOMM_SKB_TAIL_RESERVE 2
+#define RFCOMM_SKB_RESERVE  (RFCOMM_SKB_HEAD_RESERVE + RFCOMM_SKB_TAIL_RESERVE)
+
+#define RFCOMM_SABM     0x2f
+#define RFCOMM_DISC     0x43
+#define RFCOMM_UA       0x63
+#define RFCOMM_DM       0x0f
+#define RFCOMM_UIH      0xef
+
+#define RFCOMM_TEST     0x08
+#define RFCOMM_FCON     0x28
+#define RFCOMM_FCOFF    0x18
+#define RFCOMM_MSC      0x38
+#define RFCOMM_RPN      0x24
+#define RFCOMM_RLS      0x14
+#define RFCOMM_PN       0x20
+#define RFCOMM_NSC      0x04
+
+#define RFCOMM_V24_FC   0x02
+#define RFCOMM_V24_RTC  0x04
+#define RFCOMM_V24_RTR  0x08
+#define RFCOMM_V24_IC   0x40
+#define RFCOMM_V24_DV   0x80
+
+#define RFCOMM_RPN_BR_2400      0x0
+#define RFCOMM_RPN_BR_4800      0x1
+#define RFCOMM_RPN_BR_7200      0x2
+#define RFCOMM_RPN_BR_9600      0x3
+#define RFCOMM_RPN_BR_19200     0x4
+#define RFCOMM_RPN_BR_38400     0x5
+#define RFCOMM_RPN_BR_57600     0x6
+#define RFCOMM_RPN_BR_115200    0x7
+#define RFCOMM_RPN_BR_230400    0x8
+
+#define RFCOMM_RPN_DATA_5       0x0
+#define RFCOMM_RPN_DATA_6       0x1
+#define RFCOMM_RPN_DATA_7       0x2
+#define RFCOMM_RPN_DATA_8       0x3
+
+#define RFCOMM_RPN_STOP_1       0
+#define RFCOMM_RPN_STOP_15      1
+
+#define RFCOMM_RPN_PARITY_NONE  0x0
+#define RFCOMM_RPN_PARITY_ODD   0x4
+#define RFCOMM_RPN_PARITY_EVEN  0x5
+#define RFCOMM_RPN_PARITY_MARK  0x6
+#define RFCOMM_RPN_PARITY_SPACE 0x7
+
+#define RFCOMM_RPN_FLOW_NONE    0x00
+
+#define RFCOMM_RPN_XON_CHAR     0x11
+#define RFCOMM_RPN_XOFF_CHAR    0x13
+
+#define RFCOMM_RPN_PM_BITRATE           0x0001
+#define RFCOMM_RPN_PM_DATA              0x0002
+#define RFCOMM_RPN_PM_STOP              0x0004
+#define RFCOMM_RPN_PM_PARITY            0x0008
+#define RFCOMM_RPN_PM_PARITY_TYPE       0x0010
+#define RFCOMM_RPN_PM_XON               0x0020
+#define RFCOMM_RPN_PM_XOFF              0x0040
+#define RFCOMM_RPN_PM_FLOW              0x3F00
+
+#define RFCOMM_RPN_PM_ALL               0x3F7F
+
+struct rfcomm_hdr {
+        u8 addr;
+        u8 ctrl;
+        u8 len;    // Actual size can be 2 bytes
+} __attribute__ ((packed));
+
+struct rfcomm_cmd {
+        u8 addr;
+        u8 ctrl;
+        u8 len;
+        u8 fcs;
+} __attribute__ ((packed));
+
+struct rfcomm_mcc {
+        u8 type;
+        u8 len;
+} __attribute__ ((packed));
+
+struct rfcomm_pn {
+        u8  dlci;
+        u8  flow_ctrl;
+        u8  priority;
+        u8  ack_timer;
+        u16 mtu;
+        u8  max_retrans;
+        u8  credits;
+} __attribute__ ((packed));
+
+struct rfcomm_rpn {
+        u8  dlci;
+        u8  bit_rate;
+        u8  line_settings;
+        u8  flow_ctrl;
+        u8  xon_char;
+        u8  xoff_char;
+        u16 param_mask;
+} __attribute__ ((packed));
+
+struct rfcomm_rls {
+        u8  dlci;
+        u8  status;
+} __attribute__ ((packed));
+
+struct rfcomm_msc {
+        u8  dlci;
+        u8  v24_sig;
+} __attribute__ ((packed));
+
+/* ---- Core structures, flags etc ---- */
+
+struct rfcomm_session {
+        struct list_head list;
+        struct socket   *sock;
+        unsigned long    state;
+        unsigned long    flags;
+        atomic_t         refcnt;
+        int              initiator;
+
+        /* Default DLC parameters */
+        int    cfc;
+        uint   mtu;
+
+        struct list_head dlcs;
+};
+
+struct rfcomm_dlc {
+        struct list_head      list;
+        struct rfcomm_session *session;
+        struct sk_buff_head   tx_queue;
+        struct timer_list     timer;
+
+        spinlock_t    lock;
+        unsigned long state;
+        unsigned long flags;
+        atomic_t      refcnt;
+        u8            dlci;
+        u8            addr;
+        u8            priority;
+        u8            v24_sig;
+        u8            mscex;
+
+        u32           link_mode;
+
+        uint          mtu;
+        uint          cfc;
+        uint          rx_credits;
+        uint          tx_credits;
+
+        void          *owner;
+
+        void (*data_ready)(struct rfcomm_dlc *d, struct sk_buff *skb);
+        void (*state_change)(struct rfcomm_dlc *d, int err);
+        void (*modem_status)(struct rfcomm_dlc *d, u8 v24_sig);
+};
+
+/* DLC and session flags */
+#define RFCOMM_RX_THROTTLED 0
+#define RFCOMM_TX_THROTTLED 1
+#define RFCOMM_TIMED_OUT    2
+#define RFCOMM_MSC_PENDING  3 
+#define RFCOMM_AUTH_PENDING 4
+#define RFCOMM_AUTH_ACCEPT  5
+#define RFCOMM_AUTH_REJECT  6
+
+/* Scheduling flags and events */
+#define RFCOMM_SCHED_STATE  0
+#define RFCOMM_SCHED_RX     1
+#define RFCOMM_SCHED_TX     2
+#define RFCOMM_SCHED_TIMEO  3
+#define RFCOMM_SCHED_AUTH   4
+#define RFCOMM_SCHED_WAKEUP 31
+
+/* MSC exchange flags */
+#define RFCOMM_MSCEX_TX     1
+#define RFCOMM_MSCEX_RX     2
+#define RFCOMM_MSCEX_OK     (RFCOMM_MSCEX_TX + RFCOMM_MSCEX_RX)
+
+/* CFC states */
+#define RFCOMM_CFC_UNKNOWN  -1
+#define RFCOMM_CFC_DISABLED 0
+#define RFCOMM_CFC_ENABLED  RFCOMM_MAX_CREDITS
+
+/* ---- RFCOMM DLCs (channels) ---- */
+struct rfcomm_dlc *rfcomm_dlc_alloc(int prio);
+void rfcomm_dlc_free(struct rfcomm_dlc *d);
+int  rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel);
+int  rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);
+int  rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
+int  rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
+int  rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
+
+#define rfcomm_dlc_lock(d)     spin_lock(&d->lock)
+#define rfcomm_dlc_unlock(d)   spin_unlock(&d->lock)
+
+static inline void rfcomm_dlc_hold(struct rfcomm_dlc *d)
+{
+        atomic_inc(&d->refcnt);
+}
+
+static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
+{
+        if (atomic_dec_and_test(&d->refcnt))
+                rfcomm_dlc_free(d);
+}
+
+extern void FASTCALL(__rfcomm_dlc_throttle(struct rfcomm_dlc *d));
+extern void FASTCALL(__rfcomm_dlc_unthrottle(struct rfcomm_dlc *d));
+
+static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
+{
+        if (!test_and_set_bit(RFCOMM_RX_THROTTLED, &d->flags))
+                __rfcomm_dlc_throttle(d);
+}
+
+static inline void rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
+{
+        if (test_and_clear_bit(RFCOMM_RX_THROTTLED, &d->flags))
+                __rfcomm_dlc_unthrottle(d);
+}
+
+/* ---- RFCOMM sessions ---- */
+void   rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst);
+
+static inline void rfcomm_session_hold(struct rfcomm_session *s)
+{
+        atomic_inc(&s->refcnt);
+}
+
+/* ---- RFCOMM chechsum ---- */
+extern u8 rfcomm_crc_table[];
+
+/* ---- RFCOMM sockets ---- */
+struct sockaddr_rc {
+        sa_family_t     rc_family;
+        bdaddr_t        rc_bdaddr;
+        u8              rc_channel;
+};
+
+#define RFCOMM_CONNINFO 0x02
+struct rfcomm_conninfo {
+        __u16 hci_handle;
+        __u8  dev_class[3];
+};
+
+#define RFCOMM_LM       0x03
+#define RFCOMM_LM_MASTER        0x0001
+#define RFCOMM_LM_AUTH          0x0002
+#define RFCOMM_LM_ENCRYPT       0x0004
+#define RFCOMM_LM_TRUSTED       0x0008
+#define RFCOMM_LM_RELIABLE      0x0010
+#define RFCOMM_LM_SECURE        0x0020
+
+#define rfcomm_pi(sk) ((struct rfcomm_pinfo *) sk)
+
+struct rfcomm_pinfo {
+        struct bt_sock bt;
+        struct rfcomm_dlc   *dlc;
+        u8     channel;
+        u32    link_mode;
+};
+
+int  rfcomm_init_sockets(void);
+void rfcomm_cleanup_sockets(void);
+
+int  rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc **d);
+
+/* ---- RFCOMM TTY ---- */
+#define RFCOMM_MAX_DEV  256
+
+#define RFCOMMCREATEDEV         _IOW('R', 200, int)
+#define RFCOMMRELEASEDEV        _IOW('R', 201, int)
+#define RFCOMMGETDEVLIST        _IOR('R', 210, int)
+#define RFCOMMGETDEVINFO        _IOR('R', 211, int)
+#define RFCOMMSTEALDLC          _IOW('R', 220, int)
+
+#define RFCOMM_REUSE_DLC      0
+#define RFCOMM_RELEASE_ONHUP  1
+#define RFCOMM_HANGUP_NOW     2
+#define RFCOMM_TTY_ATTACHED   3
+
+struct rfcomm_dev_req {
+        s16      dev_id;
+        u32      flags;
+        bdaddr_t src;
+        bdaddr_t dst;
+        u8       channel;
+        
+};
+
+struct rfcomm_dev_info {
+        s16      id;
+        u32      flags;
+        u16      state;
+        bdaddr_t src;
+        bdaddr_t dst;
+        u8       channel;
+};
+
+struct rfcomm_dev_list_req {
+        u16      dev_num;
+        struct   rfcomm_dev_info dev_info[0];
+};
+
+int  rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
+int  rfcomm_init_ttys(void);
+void rfcomm_cleanup_ttys(void);
+
+extern struct proc_dir_entry *proc_bt_rfcomm;
+
+#endif /* __RFCOMM_H */