xref: /dragonfly/sys/netgraph/ksocket/ng_ksocket.h (revision 631c21f2)
1 /*
2  * ng_ksocket.h
3  *
4  * Copyright (c) 1996-1999 Whistle Communications, Inc.
5  * All rights reserved.
6  *
7  * Subject to the following obligations and disclaimer of warranty, use and
8  * redistribution of this software, in source or object code forms, with or
9  * without modifications are expressly permitted by Whistle Communications;
10  * provided, however, that:
11  * 1. Any and all reproductions of the source or object code must include the
12  *    copyright notice above and the following disclaimer of warranties; and
13  * 2. No rights are granted, in any manner or form, to use Whistle
14  *    Communications, Inc. trademarks, including the mark "WHISTLE
15  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
16  *    such appears in the above copyright notice or in the software.
17  *
18  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
19  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
20  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
21  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
23  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
24  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
25  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
26  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
27  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
28  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
29  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
30  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
34  * OF SUCH DAMAGE.
35  *
36  * Author: Archie Cobbs <archie@freebsd.org>
37  *
38  * $FreeBSD: src/sys/netgraph/ng_ksocket.h,v 1.2.2.5 2002/07/02 23:44:02 archie Exp $
39  * $Whistle: ng_ksocket.h,v 1.1 1999/11/16 20:04:40 archie Exp $
40  */
41 
42 #ifndef _NETGRAPH_KSOCKET_H_
43 #define _NETGRAPH_KSOCKET_H_
44 
45 #include <sys/types.h>
46 #include <sys/socket.h>
47 
48 /* Node type name and magic cookie */
49 #define NG_KSOCKET_NODE_TYPE	"ksocket"
50 #define NGM_KSOCKET_COOKIE	942710669
51 
52 /* For NGM_KSOCKET_SETOPT and NGM_KSOCKET_GETOPT control messages */
53 struct ng_ksocket_sockopt {
54 	int32_t		level;		/* second arg of [gs]etsockopt() */
55 	int32_t		name;		/* third arg of [gs]etsockopt() */
56 	u_char		value[0];	/* fourth arg of [gs]etsockopt() */
57 };
58 
59 /* Max length socket option we can return via NGM_KSOCKET_GETOPT
60    XXX This should not be necessary, we should dynamically size
61    XXX the response. Until then.. */
62 #define NG_KSOCKET_MAX_OPTLEN	1024
63 
64 /* Keep this in sync with the above structure definition */
65 #define NG_KSOCKET_SOCKOPT_INFO(svtype)	{			\
66 	  { "level",		&ng_parse_int32_type	},	\
67 	  { "name",		&ng_parse_int32_type	},	\
68 	  { "value",		(svtype)		},	\
69 	  { NULL }						\
70 }
71 
72 /* For NGM_KSOCKET_ACCEPT control message responses */
73 struct ng_ksocket_accept {
74 	u_int32_t	nodeid;		/* node ID of connected ksocket */
75 	struct sockaddr	addr;		/* peer's address (variable length) */
76 };
77 
78 /* Keep this in sync with the above structure definition */
79 #define	NGM_KSOCKET_ACCEPT_INFO {					\
80 	  { "nodeid",		&ng_parse_hint32_type		  },	\
81 	  { "addr",		&ng_ksocket_generic_sockaddr_type },	\
82 	  { NULL }							\
83 }
84 
85 /* Netgraph commands */
86 enum {
87 	NGM_KSOCKET_BIND = 1,
88 	NGM_KSOCKET_LISTEN,
89 	NGM_KSOCKET_ACCEPT,
90 	NGM_KSOCKET_CONNECT,
91 	NGM_KSOCKET_GETNAME,
92 	NGM_KSOCKET_GETPEERNAME,
93 	NGM_KSOCKET_SETOPT,
94 	NGM_KSOCKET_GETOPT,
95 };
96 
97 /* Meta information ID's */
98 #define NG_KSOCKET_META_SOCKADDR	1	/* data is struct sockaddr */
99 
100 #endif /* _NETGRAPH_KSOCKET_H_ */
101