1 /*
2  * ng_btsocket_l2cap.h
3  */
4 
5 /*-
6  * Copyright (c) 2001-2002 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_l2cap.h,v 1.4 2003/03/25 23:53:33 max Exp $
31  * $FreeBSD: src/sys/netgraph/bluetooth/include/ng_btsocket_l2cap.h,v 1.8 2006/07/21 17:11:13 rwatson Exp $
32  * $DragonFly: src/sys/netgraph7/bluetooth/include/ng_btsocket_l2cap.h,v 1.2 2008/06/26 23:05:40 dillon Exp $
33  */
34 
35 #ifndef _NETGRAPH_BTSOCKET_L2CAP_H_
36 #define _NETGRAPH_BTSOCKET_L2CAP_H_
37 
38 /*
39  * L2CAP routing entry
40  */
41 
42 struct ng_hook;
43 struct ng_message;
44 
45 struct ng_btsocket_l2cap_rtentry {
46 	bdaddr_t				 src;  /* source BD_ADDR */
47 	struct ng_hook				*hook; /* downstream hook */
48 	LIST_ENTRY(ng_btsocket_l2cap_rtentry)	 next; /* link to next */
49 };
50 typedef struct ng_btsocket_l2cap_rtentry	ng_btsocket_l2cap_rtentry_t;
51 typedef struct ng_btsocket_l2cap_rtentry *	ng_btsocket_l2cap_rtentry_p;
52 
53 /*****************************************************************************
54  *****************************************************************************
55  **                          SOCK_RAW L2CAP sockets                         **
56  *****************************************************************************
57  *****************************************************************************/
58 
59 #define NG_BTSOCKET_L2CAP_RAW_SENDSPACE	NG_L2CAP_MTU_DEFAULT
60 #define NG_BTSOCKET_L2CAP_RAW_RECVSPACE	NG_L2CAP_MTU_DEFAULT
61 
62 /*
63  * Bluetooth raw L2CAP socket PCB
64  */
65 
66 struct ng_btsocket_l2cap_raw_pcb {
67 	struct socket				*so;	/* socket */
68 
69 	u_int32_t				 flags; /* flags */
70 #define NG_BTSOCKET_L2CAP_RAW_PRIVILEGED	(1 << 0)
71 
72 	bdaddr_t				 src;	/* source address */
73 	bdaddr_t				 dst;	/* dest address */
74 	ng_btsocket_l2cap_rtentry_p		 rt;    /* routing info */
75 
76 	u_int32_t				 token;	/* message token */
77 	struct ng_mesg				*msg;   /* message */
78 
79 	struct mtx				 pcb_mtx; /* pcb mutex */
80 
81 	LIST_ENTRY(ng_btsocket_l2cap_raw_pcb)	 next;  /* link to next PCB */
82 };
83 typedef struct ng_btsocket_l2cap_raw_pcb	ng_btsocket_l2cap_raw_pcb_t;
84 typedef struct ng_btsocket_l2cap_raw_pcb *	ng_btsocket_l2cap_raw_pcb_p;
85 
86 #define	so2l2cap_raw_pcb(so) \
87 	((struct ng_btsocket_l2cap_raw_pcb *)((so)->so_pcb))
88 
89 /*
90  * Bluetooth raw L2CAP socket methods
91  */
92 
93 #ifdef _KERNEL
94 
95 void ng_btsocket_l2cap_raw_init       (void);
96 void ng_btsocket_l2cap_raw_abort      (struct socket *);
97 void ng_btsocket_l2cap_raw_close      (struct socket *);
98 int  ng_btsocket_l2cap_raw_attach     (struct socket *, int, struct thread *);
99 int  ng_btsocket_l2cap_raw_bind       (struct socket *, struct sockaddr *,
100                                        struct thread *);
101 int  ng_btsocket_l2cap_raw_connect    (struct socket *, struct sockaddr *,
102                                        struct thread *);
103 int  ng_btsocket_l2cap_raw_control    (struct socket *, u_long, caddr_t,
104                                        struct ifnet *, struct thread *);
105 void ng_btsocket_l2cap_raw_detach     (struct socket *);
106 int  ng_btsocket_l2cap_raw_disconnect (struct socket *);
107 int  ng_btsocket_l2cap_raw_peeraddr   (struct socket *, struct sockaddr **);
108 int  ng_btsocket_l2cap_raw_send       (struct socket *, int, struct mbuf *,
109                                        struct sockaddr *, struct mbuf *,
110                                        struct thread *);
111 int  ng_btsocket_l2cap_raw_sockaddr   (struct socket *, struct sockaddr **);
112 
113 #endif /* _KERNEL */
114 
115 /*****************************************************************************
116  *****************************************************************************
117  **                    SOCK_SEQPACKET L2CAP sockets                         **
118  *****************************************************************************
119  *****************************************************************************/
120 
121 #define NG_BTSOCKET_L2CAP_SENDSPACE	NG_L2CAP_MTU_DEFAULT /* (64 * 1024) */
122 #define NG_BTSOCKET_L2CAP_RECVSPACE	(64 * 1024)
123 
124 /*
125  * Bluetooth L2CAP socket PCB
126  */
127 
128 struct ng_btsocket_l2cap_pcb {
129 	struct socket			*so;	     /* Pointer to socket */
130 
131 	bdaddr_t			 src;	     /* Source address */
132 	bdaddr_t			 dst;	     /* Destination address */
133 
134 	u_int16_t			 psm;	     /* PSM */
135 	u_int16_t			 cid;	     /* Local channel ID */
136 
137 	u_int16_t			 flags;      /* socket flags */
138 #define NG_BTSOCKET_L2CAP_CLIENT	(1 << 0)     /* socket is client */
139 #define NG_BTSOCKET_L2CAP_TIMO		(1 << 1)     /* timeout pending */
140 
141 	u_int8_t			 state;      /* socket state */
142 #define NG_BTSOCKET_L2CAP_CLOSED	0            /* socket closed */
143 #define NG_BTSOCKET_L2CAP_CONNECTING	1            /* wait for connect */
144 #define NG_BTSOCKET_L2CAP_CONFIGURING	2            /* wait for config */
145 #define NG_BTSOCKET_L2CAP_OPEN		3            /* socket open */
146 #define NG_BTSOCKET_L2CAP_DISCONNECTING	4            /* wait for disconnect */
147 
148 	u_int8_t			 cfg_state;  /* config state */
149 #define	NG_BTSOCKET_L2CAP_CFG_IN	(1 << 0)     /* incoming path done */
150 #define	NG_BTSOCKET_L2CAP_CFG_OUT	(1 << 1)     /* outgoing path done */
151 #define	NG_BTSOCKET_L2CAP_CFG_BOTH \
152 	(NG_BTSOCKET_L2CAP_CFG_IN | NG_BTSOCKET_L2CAP_CFG_OUT)
153 
154 #define	NG_BTSOCKET_L2CAP_CFG_IN_SENT	(1 << 2)     /* L2CAP ConfigReq sent */
155 #define	NG_BTSOCKET_L2CAP_CFG_OUT_SENT	(1 << 3)     /* ---/--- */
156 
157 	u_int16_t			 imtu;       /* Incoming MTU */
158 	ng_l2cap_flow_t			 iflow;      /* Input flow spec */
159 
160 	u_int16_t			 omtu;       /* Outgoing MTU */
161 	ng_l2cap_flow_t			 oflow;      /* Outgoing flow spec */
162 
163 	u_int16_t			 flush_timo; /* flush timeout */
164 	u_int16_t			 link_timo;  /* link timeout */
165 
166 	struct callout_handle		 timo;       /* timeout */
167 
168 	u_int32_t			 token;	     /* message token */
169 	ng_btsocket_l2cap_rtentry_p	 rt;         /* routing info */
170 
171 	struct mtx			 pcb_mtx;    /* pcb mutex */
172 
173 	LIST_ENTRY(ng_btsocket_l2cap_pcb) next;      /* link to next PCB */
174 };
175 typedef struct ng_btsocket_l2cap_pcb	ng_btsocket_l2cap_pcb_t;
176 typedef struct ng_btsocket_l2cap_pcb *	ng_btsocket_l2cap_pcb_p;
177 
178 #define	so2l2cap_pcb(so) \
179 	((struct ng_btsocket_l2cap_pcb *)((so)->so_pcb))
180 
181 /*
182  * Bluetooth L2CAP socket methods
183  */
184 
185 #ifdef _KERNEL
186 
187 void ng_btsocket_l2cap_init       (void);
188 void ng_btsocket_l2cap_abort      (struct socket *);
189 void ng_btsocket_l2cap_close      (struct socket *);
190 int  ng_btsocket_l2cap_accept     (struct socket *, struct sockaddr **);
191 int  ng_btsocket_l2cap_attach     (struct socket *, int, struct thread *);
192 int  ng_btsocket_l2cap_bind       (struct socket *, struct sockaddr *,
193                                    struct thread *);
194 int  ng_btsocket_l2cap_connect    (struct socket *, struct sockaddr *,
195                                    struct thread *);
196 int  ng_btsocket_l2cap_control    (struct socket *, u_long, caddr_t,
197                                    struct ifnet *, struct thread *);
198 int  ng_btsocket_l2cap_ctloutput  (struct socket *, struct sockopt *);
199 void ng_btsocket_l2cap_detach     (struct socket *);
200 int  ng_btsocket_l2cap_disconnect (struct socket *);
201 int  ng_btsocket_l2cap_listen     (struct socket *, int, struct thread *);
202 int  ng_btsocket_l2cap_peeraddr   (struct socket *, struct sockaddr **);
203 int  ng_btsocket_l2cap_send       (struct socket *, int, struct mbuf *,
204                                    struct sockaddr *, struct mbuf *,
205                                    struct thread *);
206 int  ng_btsocket_l2cap_sockaddr   (struct socket *, struct sockaddr **);
207 
208 #endif /* _KERNEL */
209 
210 #endif /* _NETGRAPH_BTSOCKET_L2CAP_H_ */
211 
212