1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007 Seccuris Inc. 5 * All rights reserved. 6 * 7 * This software was developed by Robert N. M. Watson under contract to 8 * Seccuris Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _NET_BPF_ZEROCOPY_H_ 35 #define _NET_BPF_ZEROCOPY_H_ 36 37 #ifndef _KERNEL 38 #error "no user-serviceable parts inside" 39 #endif 40 41 void bpf_zerocopy_append_bytes(struct bpf_d *d, caddr_t buf, u_int offset, 42 void *src, u_int len); 43 void bpf_zerocopy_append_mbuf(struct bpf_d *d, caddr_t buf, u_int offset, 44 void *src, u_int len); 45 void bpf_zerocopy_buffull(struct bpf_d *); 46 void bpf_zerocopy_bufheld(struct bpf_d *); 47 void bpf_zerocopy_buf_reclaimed(struct bpf_d *); 48 int bpf_zerocopy_canfreebuf(struct bpf_d *); 49 int bpf_zerocopy_canwritebuf(struct bpf_d *); 50 void bpf_zerocopy_free(struct bpf_d *d); 51 int bpf_zerocopy_ioctl_getzmax(struct thread *td, struct bpf_d *d, 52 size_t *i); 53 int bpf_zerocopy_ioctl_rotzbuf(struct thread *td, struct bpf_d *d, 54 struct bpf_zbuf *bz); 55 int bpf_zerocopy_ioctl_setzbuf(struct thread *td, struct bpf_d *d, 56 struct bpf_zbuf *bz); 57 58 #endif /* !_NET_BPF_ZEROCOPY_H_ */ 59