1 /*
2  * ng_btsocket_l2cap.h
3  */
4 
5 /*-
6  * SPDX-License-Identifier: BSD-2-Clause
7  *
8  * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $Id: ng_btsocket_l2cap.h,v 1.4 2003/03/25 23:53:33 max 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 	uint8_t			 	 	 srctype;/*source addr type*/
75 	uint8_t			 	 	 dsttype;/*source addr type*/
76 	ng_btsocket_l2cap_rtentry_p		 rt;    /* routing info */
77 
78 	u_int32_t				 token;	/* message token */
79 	struct ng_mesg				*msg;   /* message */
80 
81 	struct mtx				 pcb_mtx; /* pcb mutex */
82 
83 	LIST_ENTRY(ng_btsocket_l2cap_raw_pcb)	 next;  /* link to next PCB */
84 };
85 typedef struct ng_btsocket_l2cap_raw_pcb	ng_btsocket_l2cap_raw_pcb_t;
86 typedef struct ng_btsocket_l2cap_raw_pcb *	ng_btsocket_l2cap_raw_pcb_p;
87 
88 #define	so2l2cap_raw_pcb(so) \
89 	((struct ng_btsocket_l2cap_raw_pcb *)((so)->so_pcb))
90 
91 /*
92  * Bluetooth raw L2CAP socket methods
93  */
94 
95 #ifdef _KERNEL
96 
97 void ng_btsocket_l2cap_raw_abort      (struct socket *);
98 void ng_btsocket_l2cap_raw_close      (struct socket *);
99 int  ng_btsocket_l2cap_raw_attach     (struct socket *, int, struct thread *);
100 int  ng_btsocket_l2cap_raw_bind       (struct socket *, struct sockaddr *,
101                                        struct thread *);
102 int  ng_btsocket_l2cap_raw_connect    (struct socket *, struct sockaddr *,
103                                        struct thread *);
104 int  ng_btsocket_l2cap_raw_control    (struct socket *, u_long, void *,
105                                        struct ifnet *, struct thread *);
106 void ng_btsocket_l2cap_raw_detach     (struct socket *);
107 int  ng_btsocket_l2cap_raw_disconnect (struct socket *);
108 int  ng_btsocket_l2cap_raw_peeraddr   (struct socket *, struct sockaddr *);
109 int  ng_btsocket_l2cap_raw_send       (struct socket *, int, struct mbuf *,
110                                        struct sockaddr *, struct mbuf *,
111                                        struct thread *);
112 int  ng_btsocket_l2cap_raw_sockaddr   (struct socket *, struct sockaddr *);
113 
114 #endif /* _KERNEL */
115 
116 /*****************************************************************************
117  *****************************************************************************
118  **                    SOCK_SEQPACKET L2CAP sockets                         **
119  *****************************************************************************
120  *****************************************************************************/
121 
122 #define NG_BTSOCKET_L2CAP_SENDSPACE	NG_L2CAP_MTU_DEFAULT /* (64 * 1024) */
123 #define NG_BTSOCKET_L2CAP_RECVSPACE	(64 * 1024)
124 
125 /*
126  * Bluetooth L2CAP socket PCB
127  */
128 
129 struct ng_btsocket_l2cap_pcb {
130 	struct socket			*so;	     /* Pointer to socket */
131 
132 	bdaddr_t			 src;	     /* Source address */
133 	bdaddr_t			 dst;	     /* Destination address */
134 	uint8_t			 	 srctype;	/*source addr type*/
135 	uint8_t			 	 dsttype;	/*source addr type*/
136 
137 	u_int16_t			 psm;	     /* PSM */
138 	u_int16_t			 cid;	     /* Local channel ID */
139 	uint8_t				 idtype;
140 	u_int16_t			 flags;      /* socket flags */
141 #define NG_BTSOCKET_L2CAP_CLIENT	(1 << 0)     /* socket is client */
142 #define NG_BTSOCKET_L2CAP_TIMO		(1 << 1)     /* timeout pending */
143 
144 	u_int8_t			 state;      /* socket state */
145 #define NG_BTSOCKET_L2CAP_CLOSED	0            /* socket closed */
146 #define NG_BTSOCKET_L2CAP_CONNECTING	1            /* wait for connect */
147 #define NG_BTSOCKET_L2CAP_CONFIGURING	2            /* wait for config */
148 #define NG_BTSOCKET_L2CAP_OPEN		3            /* socket open */
149 #define NG_BTSOCKET_L2CAP_DISCONNECTING	4            /* wait for disconnect */
150 #define NG_BTSOCKET_L2CAP_W4_ENC_CHANGE 5
151 
152 	u_int8_t			 cfg_state;  /* config state */
153 #define	NG_BTSOCKET_L2CAP_CFG_IN	(1 << 0)     /* incoming path done */
154 #define	NG_BTSOCKET_L2CAP_CFG_OUT	(1 << 1)     /* outgoing path done */
155 #define	NG_BTSOCKET_L2CAP_CFG_BOTH \
156 	(NG_BTSOCKET_L2CAP_CFG_IN | NG_BTSOCKET_L2CAP_CFG_OUT)
157 
158 #define	NG_BTSOCKET_L2CAP_CFG_IN_SENT	(1 << 2)     /* L2CAP ConfigReq sent */
159 #define	NG_BTSOCKET_L2CAP_CFG_OUT_SENT	(1 << 3)     /* ---/--- */
160 	uint8_t 			 encryption;
161 	u_int16_t			 imtu;       /* Incoming MTU */
162 	ng_l2cap_flow_t			 iflow;      /* Input flow spec */
163 
164 	u_int16_t			 omtu;       /* Outgoing MTU */
165 	ng_l2cap_flow_t			 oflow;      /* Outgoing flow spec */
166 
167 	u_int16_t			 flush_timo; /* flush timeout */
168 	u_int16_t			 link_timo;  /* link timeout */
169 
170 	struct callout			 timo;       /* timeout */
171 
172 	u_int32_t			 token;	     /* message token */
173 	ng_btsocket_l2cap_rtentry_p	 rt;         /* routing info */
174 
175 	struct mtx			 pcb_mtx;    /* pcb mutex */
176 	uint16_t			 need_encrypt; /*encryption needed*/
177 
178 	LIST_ENTRY(ng_btsocket_l2cap_pcb) next;      /* link to next PCB */
179 };
180 typedef struct ng_btsocket_l2cap_pcb	ng_btsocket_l2cap_pcb_t;
181 typedef struct ng_btsocket_l2cap_pcb *	ng_btsocket_l2cap_pcb_p;
182 
183 #define	so2l2cap_pcb(so) \
184 	((struct ng_btsocket_l2cap_pcb *)((so)->so_pcb))
185 
186 /*
187  * Bluetooth L2CAP socket methods
188  */
189 
190 #ifdef _KERNEL
191 
192 void ng_btsocket_l2cap_abort      (struct socket *);
193 void ng_btsocket_l2cap_close      (struct socket *);
194 int  ng_btsocket_l2cap_attach     (struct socket *, int, struct thread *);
195 int  ng_btsocket_l2cap_bind       (struct socket *, struct sockaddr *,
196                                    struct thread *);
197 int  ng_btsocket_l2cap_connect    (struct socket *, struct sockaddr *,
198                                    struct thread *);
199 int  ng_btsocket_l2cap_control    (struct socket *, u_long, void *,
200                                    struct ifnet *, struct thread *);
201 int  ng_btsocket_l2cap_ctloutput  (struct socket *, struct sockopt *);
202 void ng_btsocket_l2cap_detach     (struct socket *);
203 int  ng_btsocket_l2cap_disconnect (struct socket *);
204 int  ng_btsocket_l2cap_listen     (struct socket *, int, struct thread *);
205 int  ng_btsocket_l2cap_peeraddr   (struct socket *, struct sockaddr *);
206 int  ng_btsocket_l2cap_send       (struct socket *, int, struct mbuf *,
207                                    struct sockaddr *, struct mbuf *,
208                                    struct thread *);
209 int  ng_btsocket_l2cap_sockaddr   (struct socket *, struct sockaddr *);
210 
211 #endif /* _KERNEL */
212 
213 #endif /* _NETGRAPH_BTSOCKET_L2CAP_H_ */
214