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📄 icmp6.h(26.97 KB)
📄 icmp_var.h(3.78 KB)
📄 if_ether.c(41.26 KB)
📄 if_ether.h(4.62 KB)
📄 igmp.c(98.93 KB)
📄 igmp.h(5.36 KB)
📄 igmp_var.h(8.69 KB)
📄 in.c(43.68 KB)
📄 in.h(25.81 KB)
📄 in_cksum.c(4.09 KB)
📄 in_debug.c(3.48 KB)
📄 in_fib.c(8.62 KB)
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📄 in_pcb.h(34.46 KB)
📄 in_pcbgroup.c(17.28 KB)
📄 in_prot.c(2.35 KB)
📄 in_proto.c(9.36 KB)
📄 in_rmx.c(4.99 KB)
📄 in_rss.c(11.27 KB)
📄 in_rss.h(2.42 KB)
📄 in_systm.h(2.57 KB)
📄 in_var.h(15.4 KB)
📄 ip.h(7.37 KB)
📄 ip6.h(8.93 KB)
📄 ip_carp.c(53.25 KB)
📄 ip_carp.h(6.79 KB)
📄 ip_divert.c(21.74 KB)
📄 ip_divert.h(2.32 KB)
📄 ip_dummynet.h(8.94 KB)
📄 ip_ecn.c(5.83 KB)
📄 ip_ecn.h(2.1 KB)
📄 ip_encap.c(10.59 KB)
📄 ip_encap.h(3.13 KB)
📄 ip_fastfwd.c(13.79 KB)
📄 ip_fw.h(34.29 KB)
📄 ip_gre.c(15.28 KB)
📄 ip_icmp.c(31.15 KB)
📄 ip_icmp.h(8.52 KB)
📄 ip_id.c(9.78 KB)
📄 ip_input.c(37.16 KB)
📄 ip_mroute.c(75.86 KB)
📄 ip_mroute.h(13.66 KB)
📄 ip_options.c(19.9 KB)
📄 ip_options.h(2.61 KB)
📄 ip_output.c(40.67 KB)
📄 ip_reass.c(22.42 KB)
📄 ip_var.h(11.48 KB)
📁 khelp
📁 libalias
📁 netdump
📄 pim.h(4.25 KB)
📄 pim_var.h(3.14 KB)
📄 raw_ip.c(28.58 KB)
📄 sctp.h(22.97 KB)
📄 sctp_asconf.c(100.05 KB)
📄 sctp_asconf.h(3.31 KB)
📄 sctp_auth.c(50.44 KB)
📄 sctp_auth.h(8.52 KB)
📄 sctp_bsd_addr.c(13.89 KB)
📄 sctp_bsd_addr.h(2.45 KB)
📄 sctp_cc_functions.c(68.75 KB)
📄 sctp_constants.h(34.12 KB)
📄 sctp_crc32.c(4.5 KB)
📄 sctp_crc32.h(2.07 KB)
📄 sctp_header.h(17.48 KB)
📄 sctp_indata.c(175.36 KB)
📄 sctp_indata.h(4.18 KB)
📄 sctp_input.c(183.57 KB)
📄 sctp_input.h(2.43 KB)
📄 sctp_kdtrace.c(7.51 KB)
📄 sctp_kdtrace.h(3.6 KB)
📄 sctp_lock_bsd.h(15.64 KB)
📄 sctp_module.c(5.16 KB)
📄 sctp_os.h(2.73 KB)
📄 sctp_os_bsd.h(15.04 KB)
📄 sctp_output.c(362.89 KB)
📄 sctp_output.h(6.38 KB)
📄 sctp_pcb.c(198.87 KB)
📄 sctp_pcb.h(19.31 KB)
📄 sctp_peeloff.c(5.74 KB)
📄 sctp_peeloff.h(2.05 KB)
📄 sctp_ss_functions.c(30.72 KB)
📄 sctp_structs.h(38.29 KB)
📄 sctp_syscalls.c(13.94 KB)
📄 sctp_sysctl.c(37.45 KB)
📄 sctp_sysctl.h(22.9 KB)
📄 sctp_timer.c(47.92 KB)
📄 sctp_timer.h(3.07 KB)
📄 sctp_uio.h(38.07 KB)
📄 sctp_usrreq.c(216.08 KB)
📄 sctp_var.h(12.21 KB)
📄 sctputil.c(212.13 KB)
📄 sctputil.h(11.69 KB)
📄 siftr.c(45.2 KB)
📄 tcp.h(18.3 KB)
📄 tcp_debug.c(5.9 KB)
📄 tcp_debug.h(2.65 KB)
📄 tcp_fastopen.c(37.98 KB)
📄 tcp_fastopen.h(3.7 KB)
📄 tcp_fsm.h(4.25 KB)
📄 tcp_hostcache.c(21.43 KB)
📄 tcp_hostcache.h(2.92 KB)
📄 tcp_hpts.c(57.55 KB)
📄 tcp_hpts.h(9.89 KB)
📄 tcp_input.c(115.95 KB)
📄 tcp_log_buf.c(76.37 KB)
📄 tcp_log_buf.h(14.88 KB)
📄 tcp_lro.c(36.38 KB)
📄 tcp_lro.h(4.43 KB)
📄 tcp_offload.c(5.48 KB)
📄 tcp_offload.h(2.09 KB)
📄 tcp_output.c(60.16 KB)
📄 tcp_pcap.c(12.67 KB)
📄 tcp_pcap.h(1.76 KB)
📄 tcp_ratelimit.c(43.8 KB)
📄 tcp_ratelimit.h(5.07 KB)
📄 tcp_reass.c(30.75 KB)
📄 tcp_sack.c(26.74 KB)
📄 tcp_seq.h(3.57 KB)
📁 tcp_stacks
📄 tcp_stats.c(8.47 KB)
📄 tcp_subr.c(92.74 KB)
📄 tcp_syncache.c(73 KB)
📄 tcp_syncache.h(5.16 KB)
📄 tcp_timer.c(31.04 KB)
📄 tcp_timer.h(9.29 KB)
📄 tcp_timewait.c(19.06 KB)
📄 tcp_usrreq.c(71.35 KB)
📄 tcp_var.h(43.48 KB)
📄 tcpip.h(2.29 KB)
📄 toecore.c(13.51 KB)
📄 toecore.h(5.13 KB)
📄 udp.h(2.49 KB)
📄 udp_usrreq.c(44.57 KB)
📄 udp_var.h(6.48 KB)
📄 udplite.h(1.91 KB)

Editing: ip_carp.h

/*	$FreeBSD$	*/
/*	$OpenBSD: ip_carp.h,v 1.8 2004/07/29 22:12:15 mcbride Exp $	*/

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2002 Michael Shalayeff. All rights reserved.
 * Copyright (c) 2003 Ryan McBride. 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 ``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 HIS RELATIVES 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 MIND, 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 _IP_CARP_H
#define	_IP_CARP_H

/*
 * The CARP header layout is as follows:
 *
 *     0                   1                   2                   3
 *     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |Version| Type  | VirtualHostID |    AdvSkew    |    Auth Len   |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |   Reserved    |     AdvBase   |          Checksum             |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                         Counter (1)                           |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                         Counter (2)                           |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        SHA-1 HMAC (1)                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        SHA-1 HMAC (2)                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        SHA-1 HMAC (3)                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        SHA-1 HMAC (4)                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *    |                        SHA-1 HMAC (5)                         |
 *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 */

struct carp_header {
#if BYTE_ORDER == LITTLE_ENDIAN
	u_int8_t	carp_type:4,
			carp_version:4;
#endif
#if BYTE_ORDER == BIG_ENDIAN
	u_int8_t	carp_version:4,
			carp_type:4;
#endif
	u_int8_t	carp_vhid;	/* virtual host id */
	u_int8_t	carp_advskew;	/* advertisement skew */
	u_int8_t	carp_authlen;   /* size of counter+md, 32bit chunks */
	u_int8_t	carp_pad1;	/* reserved */
	u_int8_t	carp_advbase;	/* advertisement interval */
	u_int16_t	carp_cksum;
	u_int32_t	carp_counter[2];
	unsigned char	carp_md[20];	/* SHA1 HMAC */
} __packed;

#ifdef CTASSERT
CTASSERT(sizeof(struct carp_header) == 36);
#endif

#define	CARP_DFLTTL		255

/* carp_version */
#define	CARP_VERSION		2

/* carp_type */
#define	CARP_ADVERTISEMENT	0x01

#define	CARP_KEY_LEN		20	/* a sha1 hash of a passphrase */

/* carp_advbase */
#define	CARP_DFLTINTV		1

/*
 * Statistics.
 */
struct carpstats {
	uint64_t	carps_ipackets;		/* total input packets, IPv4 */
	uint64_t	carps_ipackets6;	/* total input packets, IPv6 */
	uint64_t	carps_badif;		/* wrong interface */
	uint64_t	carps_badttl;		/* TTL is not CARP_DFLTTL */
	uint64_t	carps_hdrops;		/* packets shorter than hdr */
	uint64_t	carps_badsum;		/* bad checksum */
	uint64_t	carps_badver;		/* bad (incl unsupp) version */
	uint64_t	carps_badlen;		/* data length does not match */
	uint64_t	carps_badauth;		/* bad authentication */
	uint64_t	carps_badvhid;		/* bad VHID */
	uint64_t	carps_badaddrs;		/* bad address list */

uint64_t	carps_opackets;		/* total output packets, IPv4 */
	uint64_t	carps_opackets6;	/* total output packets, IPv6 */
	uint64_t	carps_onomem;		/* no memory for an mbuf */
	uint64_t	carps_ostates;		/* total state updates sent */

uint64_t	carps_preempt;		/* if enabled, preemptions */
};

/*
 * Configuration structure for SIOCSVH SIOCGVH
 */
struct carpreq {
	int		carpr_count;
	int		carpr_vhid;
#define	CARP_MAXVHID	255
	int		carpr_state;
#define	CARP_STATES	"INIT", "BACKUP", "MASTER"
#define	CARP_MAXSTATE	2
	int		carpr_advskew;
#define	CARP_MAXSKEW	240
	int		carpr_advbase;
	unsigned char	carpr_key[CARP_KEY_LEN];
};
#define	SIOCSVH	_IOWR('i', 245, struct ifreq)
#define	SIOCGVH	_IOWR('i', 246, struct ifreq)

#ifdef _KERNEL
int		carp_ioctl(struct ifreq *, u_long, struct thread *);
int		carp_attach(struct ifaddr *, int);
void		carp_detach(struct ifaddr *, bool);
void		carp_carpdev_state(struct ifnet *);
int		carp_input(struct mbuf **, int *, int);
int		carp6_input (struct mbuf **, int *, int);
int		carp_output (struct ifnet *, struct mbuf *,
		    const struct sockaddr *);
int		carp_master(struct ifaddr *);
int		carp_iamatch(struct ifaddr *, uint8_t **);
struct ifaddr	*carp_iamatch6(struct ifnet *, struct in6_addr *);
char *		carp_macmatch6(struct ifnet *, struct mbuf *, const struct in6_addr *);
int		carp_forus(struct ifnet *, u_char *);

/* These are external networking stack hooks for CARP */
/* net/if.c */
extern int (*carp_ioctl_p)(struct ifreq *, u_long, struct thread *);
extern int (*carp_attach_p)(struct ifaddr *, int);
extern void (*carp_detach_p)(struct ifaddr *, bool);
extern void (*carp_linkstate_p)(struct ifnet *);
extern void (*carp_demote_adj_p)(int, char *);
extern int (*carp_master_p)(struct ifaddr *);
/* net/if_bridge.c net/if_ethersubr.c */
extern int (*carp_forus_p)(struct ifnet *, u_char *);
/* net/if_ethersubr.c */
extern int (*carp_output_p)(struct ifnet *, struct mbuf *,
    const struct sockaddr *);
/* net/rtsock.c */
extern int (*carp_get_vhid_p)(struct ifaddr *);
#ifdef INET
/* netinet/if_ether.c */
extern int (*carp_iamatch_p)(struct ifaddr *, uint8_t **);
#endif
#ifdef INET6
/* netinet6/nd6_nbr.c */
extern struct ifaddr *(*carp_iamatch6_p)(struct ifnet *, struct in6_addr *);
extern char * (*carp_macmatch6_p)(struct ifnet *, struct mbuf *,
    const struct in6_addr *);
#endif
#endif
#endif /* _IP_CARP_H */

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