/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2007 Seccuris Inc.
* All rights reserved.
*
* This software was developed by Robert N. M. Watson under contract to
* Seccuris Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NET_BPF_ZEROCOPY_H_
#define _NET_BPF_ZEROCOPY_H_
#ifndef _KERNEL
#error "no user-serviceable parts inside"
#endif
void bpf_zerocopy_append_bytes(struct bpf_d *d, caddr_t buf, u_int offset,
void *src, u_int len);
void bpf_zerocopy_append_mbuf(struct bpf_d *d, caddr_t buf, u_int offset,
void *src, u_int len);
void bpf_zerocopy_buffull(struct bpf_d *);
void bpf_zerocopy_bufheld(struct bpf_d *);
void bpf_zerocopy_buf_reclaimed(struct bpf_d *);
int bpf_zerocopy_canfreebuf(struct bpf_d *);
int bpf_zerocopy_canwritebuf(struct bpf_d *);
void bpf_zerocopy_free(struct bpf_d *d);
int bpf_zerocopy_ioctl_getzmax(struct thread *td, struct bpf_d *d,
size_t *i);
int bpf_zerocopy_ioctl_rotzbuf(struct thread *td, struct bpf_d *d,
struct bpf_zbuf *bz);
int bpf_zerocopy_ioctl_setzbuf(struct thread *td, struct bpf_d *d,
struct bpf_zbuf *bz);
#endif /* !_NET_BPF_ZEROCOPY_H_ */
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