1 /*-
2 * Copyright (c) 2007 Seccuris Inc.
3 * All rights reserved.
4 *
5 * This sofware was developed by Robert N. M. Watson under contract to
6 * Seccuris Inc.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: src/sys/net/bpf_zerocopy.h,v 1.3 2008/07/05 20:11:28 csjp Exp $
30 */
31
32 #ifndef _NET_BPF_ZEROCOPY_H_
33 #define _NET_BPF_ZEROCOPY_H_
34
35 #ifndef _KERNEL
36 #error "no user-serviceable parts inside"
37 #endif
38
39 void bpf_zerocopy_append_bytes(struct bpf_d *d, caddr_t buf, u_int offset,
40 void *src, u_int len);
41 void bpf_zerocopy_append_mbuf(struct bpf_d *d, caddr_t buf, u_int offset,
42 void *src, u_int len);
43 void bpf_zerocopy_buffull(struct bpf_d *);
44 void bpf_zerocopy_bufheld(struct bpf_d *);
45 void bpf_zerocopy_buf_reclaimed(struct bpf_d *);
46 int bpf_zerocopy_canfreebuf(struct bpf_d *);
47 int bpf_zerocopy_canwritebuf(struct bpf_d *);
48 void bpf_zerocopy_free(struct bpf_d *d);
49 int bpf_zerocopy_ioctl_getzmax(struct thread *td, struct bpf_d *d,
50 size_t *i);
51 int bpf_zerocopy_ioctl_rotzbuf(struct thread *td, struct bpf_d *d,
52 struct bpf_zbuf *bz);
53 int bpf_zerocopy_ioctl_setzbuf(struct thread *td, struct bpf_d *d,
54 struct bpf_zbuf *bz);
55
56 #endif /* !_NET_BPF_ZEROCOPY_H_ */
57
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