1 /*- 2 * Copyright (c) 2007 Seccuris Inc. 3 * All rights reserved. 4 * 5 * This software 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 * $FreeBSD$ 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