First step in Bluetooth protocol stack support.

The code is adopted from the FreeBSD netgraph-based Bluetooth
implementation by Maksim Yevmenkin <m_evmenkin@yahoo.com> but
all netgraph glue was replaced with usual BSD network stack
hooks. This is a work in progress. Only HCI layer works for now,
L2CAP and RFCOMM are on the way.

Help in testing from many, ok markus@.

1 files changed, 216 insertions, 0 deletions

diff --git a/sys/netbt/l2cap_var.h b/sys/netbt/l2cap_var.h
new file mode 100644
index 00000000000..51ee4d1f75e
--- /dev/null
+++ b/sys/netbt/l2cap_var.h
@@ -0,0 +1,216 @@
+/*	$OpenBSD: l2cap_var.h,v 1.1 2005/01/14 12:04:02 grange Exp $	*/
+
+/*
+ * ng_btsocket_l2cap.h
+ *
+ * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: l2cap_var.h,v 1.1 2005/01/14 12:04:02 grange Exp $
+ * $FreeBSD: src/sys/netgraph/bluetooth/include/ng_btsocket_l2cap.h,v 1.3 2003/11/14 03:45:29 emax Exp $
+ */
+
+#ifndef _NETGRAPH_BTSOCKET_L2CAP_H_
+#define _NETGRAPH_BTSOCKET_L2CAP_H_
+
+#include <sys/timeout.h>
+
+/*
+ * L2CAP routing entry
+ */
+
+struct ng_hook;
+struct ng_message;
+
+struct ng_btsocket_l2cap_rtentry {
+	bdaddr_t				 src;  /* source BD_ADDR */
+	struct ng_hook				*hook; /* downstream hook */
+	LIST_ENTRY(ng_btsocket_l2cap_rtentry)	 next; /* link to next */
+};
+typedef struct ng_btsocket_l2cap_rtentry	ng_btsocket_l2cap_rtentry_t;
+typedef struct ng_btsocket_l2cap_rtentry *	ng_btsocket_l2cap_rtentry_p;
+
+/*****************************************************************************
+ *****************************************************************************
+ **                          SOCK_RAW L2CAP sockets                         **
+ *****************************************************************************
+ *****************************************************************************/
+
+#define NG_BTSOCKET_L2CAP_RAW_SENDSPACE	NG_L2CAP_MTU_DEFAULT
+#define NG_BTSOCKET_L2CAP_RAW_RECVSPACE	NG_L2CAP_MTU_DEFAULT
+
+/*
+ * Bluetooth raw L2CAP socket PCB
+ */
+
+struct ng_btsocket_l2cap_raw_pcb {
+	struct socket				*so;	/* socket */
+
+	u_int32_t				 flags; /* flags */
+#define NG_BTSOCKET_L2CAP_RAW_PRIVILEGED	(1 << 0)
+
+	bdaddr_t				 src;	/* source address */
+	bdaddr_t				 dst;	/* dest address */
+	ng_btsocket_l2cap_rtentry_p		 rt;    /* routing info */
+
+	u_int32_t				 token;	/* message token */
+	struct ng_mesg				*msg;   /* message */
+
+#if 0
+	struct mtx				 pcb_mtx; /* pcb mutex */
+#endif
+
+	LIST_ENTRY(ng_btsocket_l2cap_raw_pcb)	 next;  /* link to next PCB */
+};
+typedef struct ng_btsocket_l2cap_raw_pcb	ng_btsocket_l2cap_raw_pcb_t;
+typedef struct ng_btsocket_l2cap_raw_pcb *	ng_btsocket_l2cap_raw_pcb_p;
+
+#define	so2l2cap_raw_pcb(so) \
+	((struct ng_btsocket_l2cap_raw_pcb *)((so)->so_pcb))
+
+/*
+ * Bluetooth raw L2CAP socket methods
+ */
+
+#ifdef _KERNEL
+
+void l2cap_raw_init(void);
+int  ng_btsocket_l2cap_raw_abort      (struct socket *);
+int  ng_btsocket_l2cap_raw_attach     (struct socket *, int, struct proc *);
+int  ng_btsocket_l2cap_raw_bind       (struct socket *, struct sockaddr *,
+                                       struct proc *);
+int  ng_btsocket_l2cap_raw_connect    (struct socket *, struct sockaddr *,
+                                       struct proc *);
+int  ng_btsocket_l2cap_raw_control    (struct socket *, u_long, caddr_t,
+                                       struct ifnet *, struct proc *);
+int  ng_btsocket_l2cap_raw_detach     (struct socket *);
+int  ng_btsocket_l2cap_raw_disconnect (struct socket *);
+int  ng_btsocket_l2cap_raw_peeraddr   (struct socket *, struct sockaddr **);
+int  ng_btsocket_l2cap_raw_send       (struct socket *, int, struct mbuf *,
+                                       struct sockaddr *, struct mbuf *,
+                                       struct proc *);
+int  ng_btsocket_l2cap_raw_sockaddr   (struct socket *, struct sockaddr **);
+
+#endif /* _KERNEL */
+
+/*****************************************************************************
+ *****************************************************************************
+ **                    SOCK_SEQPACKET L2CAP sockets                         **
+ *****************************************************************************
+ *****************************************************************************/
+
+#define NG_BTSOCKET_L2CAP_SENDSPACE	NG_L2CAP_MTU_DEFAULT /* (64 * 1024) */
+#define NG_BTSOCKET_L2CAP_RECVSPACE	(64 * 1024)
+
+/*
+ * Bluetooth L2CAP socket PCB
+ */
+
+struct ng_btsocket_l2cap_pcb {
+	struct socket			*so;	     /* Pointer to socket */
+
+	bdaddr_t			 src;	     /* Source address */
+	bdaddr_t			 dst;	     /* Destination address */
+
+	u_int16_t			 psm;	     /* PSM */
+	u_int16_t			 cid;	     /* Local channel ID */
+
+	u_int16_t			 flags;      /* socket flags */
+#define NG_BTSOCKET_L2CAP_CLIENT	(1 << 0)     /* socket is client */
+#define NG_BTSOCKET_L2CAP_TIMO		(1 << 1)     /* timeout pending */
+
+	u_int8_t			 state;      /* socket state */
+#define NG_BTSOCKET_L2CAP_CLOSED	0            /* socket closed */
+#define NG_BTSOCKET_L2CAP_CONNECTING	1            /* wait for connect */
+#define NG_BTSOCKET_L2CAP_CONFIGURING	2            /* wait for config */
+#define NG_BTSOCKET_L2CAP_OPEN		3            /* socket open */
+#define NG_BTSOCKET_L2CAP_DISCONNECTING	4            /* wait for disconnect */
+
+	u_int8_t			 cfg_state;  /* config state */
+#define	NG_BTSOCKET_L2CAP_CFG_IN	(1 << 0)     /* incoming path done */
+#define	NG_BTSOCKET_L2CAP_CFG_OUT	(1 << 1)     /* outgoing path done */
+#define	NG_BTSOCKET_L2CAP_CFG_BOTH \
+	(NG_BTSOCKET_L2CAP_CFG_IN | NG_BTSOCKET_L2CAP_CFG_OUT)
+
+#define	NG_BTSOCKET_L2CAP_CFG_IN_SENT	(1 << 2)     /* L2CAP ConfigReq sent */
+#define	NG_BTSOCKET_L2CAP_CFG_OUT_SENT	(1 << 3)     /* ---/--- */
+
+	u_int16_t			 imtu;       /* Incoming MTU */
+	ng_l2cap_flow_t			 iflow;      /* Input flow spec */
+
+	u_int16_t			 omtu;       /* Outgoing MTU */
+	ng_l2cap_flow_t			 oflow;      /* Outgoing flow spec */
+
+	u_int16_t			 flush_timo; /* flush timeout */   
+	u_int16_t			 link_timo;  /* link timeout */ 
+
+	struct timeout			 timo;       /* timeout */
+
+	u_int32_t			 token;	     /* message token */
+	ng_btsocket_l2cap_rtentry_p	 rt;         /* routing info */
+
+#if 0
+	struct mtx			 pcb_mtx;    /* pcb mutex */
+#endif
+
+	LIST_ENTRY(ng_btsocket_l2cap_pcb) next;      /* link to next PCB */
+};
+typedef struct ng_btsocket_l2cap_pcb	ng_btsocket_l2cap_pcb_t;
+typedef struct ng_btsocket_l2cap_pcb *	ng_btsocket_l2cap_pcb_p;
+
+#define	so2l2cap_pcb(so) \
+	((struct ng_btsocket_l2cap_pcb *)((so)->so_pcb))
+
+/*
+ * Bluetooth L2CAP socket methods
+ */
+
+#ifdef _KERNEL
+
+void l2cap_init(void);
+int  ng_btsocket_l2cap_abort      (struct socket *);
+int  ng_btsocket_l2cap_accept     (struct socket *, struct sockaddr **);
+int  ng_btsocket_l2cap_attach     (struct socket *, int, struct proc *);
+int  ng_btsocket_l2cap_bind       (struct socket *, struct sockaddr *,
+                                   struct proc *);
+int  ng_btsocket_l2cap_connect    (struct socket *, struct sockaddr *,
+                                   struct proc *);
+int  ng_btsocket_l2cap_control    (struct socket *, u_long, caddr_t,
+                                   struct ifnet *, struct proc *);
+int  l2cap_raw_ctloutput(int, struct socket *, int, int, struct mbuf **);
+int  ng_btsocket_l2cap_detach     (struct socket *);
+int  ng_btsocket_l2cap_disconnect (struct socket *);
+int  ng_btsocket_l2cap_listen     (struct socket *, struct proc *);
+int  ng_btsocket_l2cap_peeraddr   (struct socket *, struct sockaddr **);
+int  ng_btsocket_l2cap_send       (struct socket *, int, struct mbuf *,
+                                   struct sockaddr *, struct mbuf *,
+                                   struct proc *);
+int  ng_btsocket_l2cap_sockaddr   (struct socket *, struct sockaddr **);
+
+int  l2cap_raw_usrreq(struct socket *, int, struct mbuf *, struct mbuf *,
+	struct mbuf *);
+
+#endif /* _KERNEL */
+
+#endif /* _NETGRAPH_BTSOCKET_L2CAP_H_ */