Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids. Most
[dragonfly.git] / sys / netgraph / bpf / ng_bpf.h
1
2 /*
3  * ng_bpf.h
4  *
5  * Copyright (c) 1996-1999 Whistle Communications, Inc.
6  * All rights reserved.
7  * 
8  * Subject to the following obligations and disclaimer of warranty, use and
9  * redistribution of this software, in source or object code forms, with or
10  * without modifications are expressly permitted by Whistle Communications;
11  * provided, however, that:
12  * 1. Any and all reproductions of the source or object code must include the
13  *    copyright notice above and the following disclaimer of warranties; and
14  * 2. No rights are granted, in any manner or form, to use Whistle
15  *    Communications, Inc. trademarks, including the mark "WHISTLE
16  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
17  *    such appears in the above copyright notice or in the software.
18  * 
19  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
20  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
21  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
22  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
23  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
24  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANBPF, OR MAKE ANY
25  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
26  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
27  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
28  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
29  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
31  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35  * OF SUCH DAMAGE.
36  *
37  * Author: Archie Cobbs <archie@freebsd.org>
38  *
39  * $FreeBSD: src/sys/netgraph/ng_bpf.h,v 1.2.4.3 2002/07/02 23:44:02 archie Exp $
40  * $DragonFly: src/sys/netgraph/bpf/ng_bpf.h,v 1.2 2003/06/17 04:28:49 dillon Exp $
41  * $Whistle: ng_bpf.h,v 1.3 1999/12/03 20:30:23 archie Exp $
42  */
43
44 #ifndef _NETGRAPH_BPF_H_
45 #define _NETGRAPH_BPF_H_
46
47 /* Node type name and magic cookie */
48 #define NG_BPF_NODE_TYPE        "bpf"
49 #define NGM_BPF_COOKIE          944100792
50
51 /* Program structure for one hook */
52 struct ng_bpf_hookprog {
53         char            thisHook[NG_HOOKLEN+1];         /* name of hook */
54         char            ifMatch[NG_HOOKLEN+1];          /* match dest hook */
55         char            ifNotMatch[NG_HOOKLEN+1];       /* !match dest hook */
56         int32_t         bpf_prog_len;                   /* #isns in program */
57         struct bpf_insn bpf_prog[0];                    /* bpf program */
58 };
59
60 #define NG_BPF_HOOKPROG_SIZE(numInsn)   \
61         (sizeof(struct ng_bpf_hookprog) + (numInsn) * sizeof(struct bpf_insn))
62
63 /* Keep this in sync with the above structure definition */
64 #define NG_BPF_HOOKPROG_TYPE_INFO(bptype)       {               \
65           { "thisHook",         &ng_parse_hookbuf_type  },      \
66           { "ifMatch",          &ng_parse_hookbuf_type  },      \
67           { "ifNotMatch",       &ng_parse_hookbuf_type  },      \
68           { "bpf_prog_len",     &ng_parse_int32_type    },      \
69           { "bpf_prog",         (bptype)                },      \
70           { NULL }                                              \
71 }
72
73 /* Statistics structure for one hook */
74 struct ng_bpf_hookstat {
75         u_int64_t       recvFrames;
76         u_int64_t       recvOctets;
77         u_int64_t       recvMatchFrames;
78         u_int64_t       recvMatchOctets;
79         u_int64_t       xmitFrames;
80         u_int64_t       xmitOctets;
81 };
82
83 /* Keep this in sync with the above structure definition */
84 #define NG_BPF_HOOKSTAT_TYPE_INFO       {                       \
85           { "recvFrames",       &ng_parse_uint64_type   },      \
86           { "recvOctets",       &ng_parse_uint64_type   },      \
87           { "recvMatchFrames",  &ng_parse_uint64_type   },      \
88           { "recvMatchOctets",  &ng_parse_uint64_type   },      \
89           { "xmitFrames",       &ng_parse_uint64_type   },      \
90           { "xmitOctets",       &ng_parse_uint64_type   },      \
91           { NULL }                                              \
92 }
93
94 /* Netgraph commands */
95 enum {
96         NGM_BPF_SET_PROGRAM = 1,        /* supply a struct ng_bpf_hookprog */
97         NGM_BPF_GET_PROGRAM,            /* returns a struct ng_bpf_hookprog */
98         NGM_BPF_GET_STATS,              /* supply name as char[NG_HOOKLEN+1] */
99         NGM_BPF_CLR_STATS,              /* supply name as char[NG_HOOKLEN+1] */
100         NGM_BPF_GETCLR_STATS,           /* supply name as char[NG_HOOKLEN+1] */
101 };
102
103 #endif /* _NETGRAPH_BPF_H_ */