79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 2015 Mindaugas Rasiukevicius <rmind at netbsd org>
|
|
* All rights reserved.
|
|
*
|
|
* 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 _NPFKERN_H_
|
|
#define _NPFKERN_H_
|
|
|
|
#ifndef _KERNEL
|
|
#include <stdbool.h>
|
|
#include <inttypes.h>
|
|
#endif
|
|
|
|
struct mbuf;
|
|
struct ifnet;
|
|
|
|
#if defined(_NPF_STANDALONE) || !defined(__NetBSD__)
|
|
#define PFIL_IN 0x00000001 // incoming packet
|
|
#define PFIL_OUT 0x00000002 // outgoing packet
|
|
#endif
|
|
|
|
#define NPF_NO_GC 0x01
|
|
|
|
typedef struct {
|
|
const char * (*getname)(struct ifnet *);
|
|
struct ifnet * (*lookup)(const char *);
|
|
void (*flush)(void *);
|
|
void * (*getmeta)(const struct ifnet *);
|
|
void (*setmeta)(struct ifnet *, void *);
|
|
} npf_ifops_t;
|
|
|
|
typedef struct {
|
|
struct mbuf * (*alloc)(int, int);
|
|
void (*free)(struct mbuf *);
|
|
void * (*getdata)(const struct mbuf *);
|
|
struct mbuf * (*getnext)(struct mbuf *);
|
|
size_t (*getlen)(const struct mbuf *);
|
|
size_t (*getchainlen)(const struct mbuf *);
|
|
bool (*ensure_contig)(struct mbuf **, size_t);
|
|
bool (*ensure_writable)(struct mbuf **, size_t);
|
|
} npf_mbufops_t;
|
|
|
|
int npf_sysinit(unsigned);
|
|
void npf_sysfini(void);
|
|
|
|
npf_t * npf_create(int, const npf_mbufops_t *, const npf_ifops_t *);
|
|
int npf_load(npf_t *, void *, npf_error_t *);
|
|
void npf_gc(npf_t *);
|
|
void npf_destroy(npf_t *);
|
|
|
|
void npf_thread_register(npf_t *);
|
|
int npf_packet_handler(npf_t *, struct mbuf **, struct ifnet *, int);
|
|
void npf_ifmap_attach(npf_t *, struct ifnet *);
|
|
void npf_ifmap_detach(npf_t *, struct ifnet *);
|
|
void npf_stats(npf_t *, uint64_t *);
|
|
|
|
#endif
|