1 /*
2  * ng_ksocket.h
3  */
4 
5 /*-
6  * Copyright (c) 1996-1999 Whistle Communications, Inc.
7  * All rights reserved.
8  *
9  * Subject to the following obligations and disclaimer of warranty, use and
10  * redistribution of this software, in source or object code forms, with or
11  * without modifications are expressly permitted by Whistle Communications;
12  * provided, however, that:
13  * 1. Any and all reproductions of the source or object code must include the
14  *    copyright notice above and the following disclaimer of warranties; and
15  * 2. No rights are granted, in any manner or form, to use Whistle
16  *    Communications, Inc. trademarks, including the mark "WHISTLE
17  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
18  *    such appears in the above copyright notice or in the software.
19  *
20  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
21  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
22  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
23  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
24  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
25  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
26  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
27  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
28  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
29  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
30  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
31  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
32  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
36  * OF SUCH DAMAGE.
37  *
38  * Author: Archie Cobbs <archie@freebsd.org>
39  *
40  * $FreeBSD: src/sys/netgraph/ng_ksocket.h,v 1.13 2005/10/28 14:41:28 ru Exp $
41  * $Whistle: ng_ksocket.h,v 1.1 1999/11/16 20:04:40 archie Exp $
42  */
43 
44 #ifndef _NETGRAPH_NG_KSOCKET_H_
45 #define _NETGRAPH_NG_KSOCKET_H_
46 
47 #include <sys/types.h>
48 #include <sys/socket.h>
49 
50 /* Node type name and magic cookie */
51 #define NG_KSOCKET_NODE_TYPE	"ksocket"
52 #define NGM_KSOCKET_COOKIE	942710669
53 
54 /* For NGM_KSOCKET_SETOPT and NGM_KSOCKET_GETOPT control messages */
55 struct ng_ksocket_sockopt {
56 	int32_t		level;		/* second arg of [gs]etsockopt() */
57 	int32_t		name;		/* third arg of [gs]etsockopt() */
58 	u_char		value[];	/* fourth arg of [gs]etsockopt() */
59 };
60 
61 /* Max length socket option we can return via NGM_KSOCKET_GETOPT
62    XXX This should not be necessary, we should dynamically size
63    XXX the response. Until then.. */
64 #define NG_KSOCKET_MAX_OPTLEN	1024
65 
66 /* Keep this in sync with the above structure definition */
67 #define NG_KSOCKET_SOCKOPT_INFO(svtype)	{			\
68 	  { "level",		&ng_parse_int32_type	},	\
69 	  { "name",		&ng_parse_int32_type	},	\
70 	  { "value",		(svtype)		},	\
71 	  { NULL }						\
72 }
73 
74 /* For NGM_KSOCKET_ACCEPT control message responses */
75 struct ng_ksocket_accept {
76 	u_int32_t	nodeid;		/* node ID of connected ksocket */
77 	struct sockaddr	addr;		/* peer's address (variable length) */
78 };
79 
80 /* Keep this in sync with the above structure definition */
81 #define	NGM_KSOCKET_ACCEPT_INFO {					\
82 	  { "nodeid",		&ng_parse_hint32_type		  },	\
83 	  { "addr",		&ng_ksocket_generic_sockaddr_type },	\
84 	  { NULL }							\
85 }
86 
87 /* Netgraph commands */
88 enum {
89 	NGM_KSOCKET_BIND = 1,
90 	NGM_KSOCKET_LISTEN,
91 	NGM_KSOCKET_ACCEPT,
92 	NGM_KSOCKET_CONNECT,
93 	NGM_KSOCKET_GETNAME,
94 	NGM_KSOCKET_GETPEERNAME,
95 	NGM_KSOCKET_SETOPT,
96 	NGM_KSOCKET_GETOPT,
97 };
98 
99 #ifdef _KERNEL
100 
101 /* Structure for sockaddr tag */
102 struct sa_tag {
103 	struct m_tag	tag;
104 	ng_ID_t		id;
105 	struct sockaddr	sa;
106 };
107 
108 /* Tag information ID's */
109 #define NG_KSOCKET_TAG_SOCKADDR	1	/* data is struct sockaddr */
110 
111 #endif /* _KERNEL */
112 #endif /* _NETGRAPH_NG_KSOCKET_H_ */
113