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📄 bpf.c(69.94 KB)
📄 bpf.h(14.6 KB)
📄 bpf_buffer.c(6.39 KB)
📄 bpf_buffer.h(2.04 KB)
📄 bpf_filter.c(12.09 KB)
📄 bpf_jitter.c(3.43 KB)
📄 bpf_jitter.h(3.3 KB)
📄 bpf_zerocopy.c(16.12 KB)
📄 bpf_zerocopy.h(2.36 KB)
📄 bpfdesc.h(6.04 KB)
📄 bridgestp.c(55.53 KB)
📄 bridgestp.h(13.06 KB)
📄 debugnet.c(26.35 KB)
📄 debugnet.h(8.54 KB)
📄 debugnet_inet.c(12.67 KB)
📄 debugnet_int.h(3.11 KB)
📄 dlt.h(44.23 KB)
📄 ethernet.h(22.17 KB)
📄 firewire.h(3.95 KB)
📄 ieee8023ad_lacp.c(53.91 KB)
📄 ieee8023ad_lacp.h(9.22 KB)
📄 ieee_oui.h(3.64 KB)
📄 if.c(105.86 KB)
📄 if.h(22.3 KB)
📄 if_arp.h(5.41 KB)
📄 if_bridge.c(89.97 KB)
📄 if_bridgevar.h(11.54 KB)
📄 if_clone.c(17.42 KB)
📄 if_clone.h(3.38 KB)
📄 if_dead.c(3.83 KB)
📄 if_debug.c(4.02 KB)
📄 if_disc.c(5.95 KB)
📄 if_dl.h(3.56 KB)
📄 if_edsc.c(9.93 KB)
📄 if_enc.c(12.02 KB)
📄 if_enc.h(1.65 KB)
📄 if_epair.c(27.75 KB)
📄 if_ethersubr.c(37.23 KB)
📄 if_fwsubr.c(19.22 KB)
📄 if_gif.c(16.66 KB)
📄 if_gif.h(4.16 KB)
📄 if_gre.c(18.8 KB)
📄 if_gre.h(5.69 KB)
📄 if_infiniband.c(14.99 KB)
📄 if_ipsec.c(24.98 KB)
📄 if_ipsec.h(1.62 KB)
📄 if_lagg.c(62.68 KB)
📄 if_lagg.h(8.94 KB)
📄 if_llatbl.c(20.5 KB)
📄 if_llatbl.h(9.52 KB)
📄 if_llc.h(4.53 KB)
📄 if_loop.c(10.62 KB)
📄 if_me.c(16.73 KB)
📄 if_media.c(12.81 KB)
📄 if_media.h(36.45 KB)
📄 if_mib.c(4.6 KB)
📄 if_mib.h(5.58 KB)
📄 if_pflog.h(2.24 KB)
📄 if_pfsync.h(6.85 KB)
📄 if_sppp.h(8.37 KB)
📄 if_spppfr.c(15.11 KB)
📄 if_spppsubr.c(132.44 KB)
📄 if_stf.c(19.3 KB)
📄 if_tap.h(2.54 KB)
📄 if_tun.h(1.43 KB)
📄 if_tuntap.c(47.67 KB)
📄 if_types.h(12.2 KB)
📄 if_var.h(29.92 KB)
📄 if_vlan.c(53.04 KB)
📄 if_vlan_var.h(6.1 KB)
📄 if_vxlan.c(88.14 KB)
📄 if_vxlan.h(4.71 KB)
📄 ifdi_if.m(8.4 KB)
📄 iflib.c(185.91 KB)
📄 iflib.h(14.41 KB)
📄 iflib_clone.c(7.37 KB)
📄 iflib_private.h(2.31 KB)
📄 ifq.h(12.2 KB)
📄 infiniband.h(2.64 KB)
📄 mp_ring.c(13.3 KB)
📄 mp_ring.h(2.77 KB)
📄 mppc.h(2.37 KB)
📄 mppcc.c(8.88 KB)
📄 mppcd.c(7.89 KB)
📄 netisr.c(44.33 KB)
📄 netisr.h(9.31 KB)
📄 netisr_internal.h(4.77 KB)
📄 netmap.h(32.93 KB)
📄 netmap_legacy.h(9.49 KB)
📄 netmap_user.h(30.33 KB)
📄 netmap_virt.h(3.89 KB)
📄 paravirt.h(6.91 KB)
📄 pfil.c(16.83 KB)
📄 pfil.h(5.86 KB)
📄 pfkeyv2.h(14.54 KB)
📄 pfvar.h(48.83 KB)
📄 ppp_defs.h(5.41 KB)
📄 radix.c(30.87 KB)
📄 radix.h(6.83 KB)
📄 raw_cb.c(3.77 KB)
📄 raw_cb.h(3.04 KB)
📄 raw_usrreq.c(6.26 KB)
📄 rndis.h(10.74 KB)
📁 route
📄 route.c(19.25 KB)
📄 route.h(16.54 KB)
📄 rss_config.c(14.12 KB)
📄 rss_config.h(4.69 KB)
📄 rtsock.c(62.94 KB)
📄 sff8436.h(8.3 KB)
📄 sff8472.h(18.95 KB)
📄 slcompress.c(16.25 KB)
📄 slcompress.h(6.4 KB)
📄 toeplitz.c(1.96 KB)
📄 toeplitz.h(1.72 KB)
📄 vnet.c(22.42 KB)
📄 vnet.h(14.62 KB)

Editing: bpfdesc.h

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1990, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from the Stanford/CMU enet packet filter,
 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
 * Berkeley Laboratory.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *      @(#)bpfdesc.h	8.1 (Berkeley) 6/10/93
 *
 * $FreeBSD$
 */

#ifndef _NET_BPFDESC_H_
#define _NET_BPFDESC_H_

#include <sys/callout.h>
#include <sys/selinfo.h>
#include <sys/ck.h>
#include <sys/conf.h>
#include <sys/counter.h>
#include <sys/epoch.h>
#include <net/if.h>

/*
 * Descriptor associated with each open bpf file.
 */
struct zbuf;
struct bpf_d {
	CK_LIST_ENTRY(bpf_d) bd_next;	/* Linked list of descriptors */
	/*
	 * Buffer slots: two memory buffers store the incoming packets.
	 *   The model has three slots.  Sbuf is always occupied.
	 *   sbuf (store) - Receive interrupt puts packets here.
	 *   hbuf (hold) - When sbuf is full, put buffer here and
	 *                 wakeup read (replace sbuf with fbuf).
	 *   fbuf (free) - When read is done, put buffer here.
	 * On receiving, if sbuf is full and fbuf is 0, packet is dropped.
	 */
	caddr_t		bd_sbuf;	/* store slot */
	caddr_t		bd_hbuf;	/* hold slot */
	caddr_t		bd_fbuf;	/* free slot */
	int		bd_hbuf_in_use;	/* don't rotate buffers */
	int 		bd_slen;	/* current length of store buffer */
	int 		bd_hlen;	/* current length of hold buffer */

int		bd_bufsize;	/* absolute length of buffers */

struct bpf_if *	bd_bif;		/* interface descriptor */
	u_long		bd_rtout;	/* Read timeout in 'ticks' */
	struct bpf_insn *bd_rfilter; 	/* read filter code */
	struct bpf_insn *bd_wfilter;	/* write filter code */
	void		*bd_bfilter;	/* binary filter code */
	counter_u64_t	bd_rcount;	/* number of packets received */
	counter_u64_t	bd_dcount;	/* number of packets dropped */

u_char		bd_promisc;	/* true if listening promiscuously */
	u_char		bd_state;	/* idle, waiting, or timed out */
	u_char		bd_immediate;	/* true to return on packet arrival */
	u_char		bd_writer;	/* non-zero if d is writer-only */
	int		bd_hdrcmplt;	/* false to fill in src lladdr automatically */
	int		bd_direction;	/* select packet direction */
	int		bd_tstamp;	/* select time stamping function */
	int		bd_feedback;	/* true to feed back sent packets */
	int		bd_async;	/* non-zero if packet reception should generate signal */
	int		bd_sig;		/* signal to send upon packet reception */
	struct sigio *	bd_sigio;	/* information for async I/O */
	struct selinfo	bd_sel;		/* bsd select info */
	struct mtx	bd_lock;	/* per-descriptor lock */
	struct callout	bd_callout;	/* for BPF timeouts with select */
	struct label	*bd_label;	/* MAC label for descriptor */
	counter_u64_t	bd_fcount;	/* number of packets which matched filter */
	pid_t		bd_pid;		/* PID which created descriptor */
	int		bd_locked;	/* true if descriptor is locked */
	u_int		bd_bufmode;	/* Current buffer mode. */
	counter_u64_t	bd_wcount;	/* number of packets written */
	counter_u64_t	bd_wfcount;	/* number of packets that matched write filter */
	counter_u64_t	bd_wdcount;	/* number of packets dropped during a write */
	counter_u64_t	bd_zcopy;	/* number of zero copy operations */
	u_char		bd_compat32;	/* 32-bit stream on LP64 system */

volatile u_int	bd_refcnt;
	struct epoch_context epoch_ctx;
};

/* Values for bd_state */
#define BPF_IDLE	0		/* no select in progress */
#define BPF_WAITING	1		/* waiting for read timeout in select */
#define BPF_TIMED_OUT	2		/* read timeout has expired in select */

#define BPFD_LOCK(bd)		mtx_lock(&(bd)->bd_lock)
#define BPFD_UNLOCK(bd)		mtx_unlock(&(bd)->bd_lock)
#define BPFD_LOCK_ASSERT(bd)	mtx_assert(&(bd)->bd_lock, MA_OWNED)

#define BPF_PID_REFRESH(bd, td)	(bd)->bd_pid = (td)->td_proc->p_pid
#define BPF_PID_REFRESH_CUR(bd)	(bd)->bd_pid = curthread->td_proc->p_pid

/*
 * External representation of the bpf descriptor
 */
struct xbpf_d {
	u_int		bd_structsize;	/* Size of this structure. */
	u_char		bd_promisc;
	u_char		bd_immediate;
	u_char		__bd_pad[6];
	int		bd_hdrcmplt;
	int		bd_direction;
	int		bd_feedback;
	int		bd_async;
	u_int64_t	bd_rcount;
	u_int64_t	bd_dcount;
	u_int64_t	bd_fcount;
	int		bd_sig;
	int		bd_slen;
	int		bd_hlen;
	int		bd_bufsize;
	pid_t		bd_pid;
	char		bd_ifname[IFNAMSIZ];
	int		bd_locked;
	u_int64_t	bd_wcount;
	u_int64_t	bd_wfcount;
	u_int64_t	bd_wdcount;
	u_int64_t	bd_zcopy;
	int		bd_bufmode;
	/*
	 * Allocate 4 64 bit unsigned integers for future expansion so we do
	 * not have to worry about breaking the ABI.
	 */
	u_int64_t	bd_spare[4];
};

#define BPFIF_FLAG_DYING	1	/* Reject new bpf consumers */

#endif

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Editing: bpfdesc.h

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