freebsd-skq/sys/net/bpf_zerocopy.h
Pedro F. Giffuni fe267a5590 sys: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:23:17 +00:00

59 lines
2.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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.
*
* $FreeBSD$
*/
#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_ */