source: rtems-libbsd/freebsd/sys/contrib/pf/net/if_pflow.h @ 66659ff

/*      $OpenBSD: if_pflow.h,v 1.5 2009/02/27 11:09:36 gollo Exp $      */

/*
 * Copyright (c) 2008 Henning Brauer <henning@openbsd.org>
 * Copyright (c) 2008 Joerg Goltermann <jg@osn.de>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * $FreeBSD$
 */

#ifndef _NET_IF_PFLOW_H_
#define _NET_IF_PFLOW_H_

#define PFLOW_ID_LEN    sizeof(u_int64_t)

#define PFLOW_MAXFLOWS 30
#define PFLOW_VERSION 5
#define PFLOW_ENGINE_TYPE 42
#define PFLOW_ENGINE_ID 42
#define PFLOW_MAXBYTES 0xffffffff
#define PFLOW_TIMEOUT 30

struct pflow_flow {
        u_int32_t       src_ip;
        u_int32_t       dest_ip;
        u_int32_t       nexthop_ip;
        u_int16_t       if_index_in;
        u_int16_t       if_index_out;
        u_int32_t       flow_packets;
        u_int32_t       flow_octets;
        u_int32_t       flow_start;
        u_int32_t       flow_finish;
        u_int16_t       src_port;
        u_int16_t       dest_port;
        u_int8_t        pad1;
        u_int8_t        tcp_flags;
        u_int8_t        protocol;
        u_int8_t        tos;
        u_int16_t       src_as;
        u_int16_t       dest_as;
        u_int8_t        src_mask;
        u_int8_t        dest_mask;
        u_int16_t       pad2;
} __packed;

#ifdef _KERNEL

extern int pflow_ok;

struct pflow_softc {
        struct ifnet             sc_if;
        struct ifnet            *sc_pflow_ifp;

        unsigned int             sc_count;
        unsigned int             sc_maxcount;
        u_int64_t                sc_gcounter;
        struct ip_moptions       sc_imo;
#ifdef __FreeBSD__
        struct callout           sc_tmo;
#else
        struct timeout           sc_tmo;
#endif
        struct in_addr           sc_sender_ip;
        u_int16_t                sc_sender_port;
        struct in_addr           sc_receiver_ip;
        u_int16_t                sc_receiver_port;
        struct mbuf             *sc_mbuf;       /* current cumulative mbuf */
        SLIST_ENTRY(pflow_softc) sc_next;
};

extern struct pflow_softc       *pflowif;

#endif /* _KERNEL */

struct pflow_header {
        u_int16_t       version;
        u_int16_t       count;
        u_int32_t       uptime_ms;
        u_int32_t       time_sec;
        u_int32_t       time_nanosec;
        u_int32_t       flow_sequence;
        u_int8_t        engine_type;
        u_int8_t        engine_id;
        u_int8_t        reserved1;
        u_int8_t        reserved2;
} __packed;

#define PFLOW_HDRLEN sizeof(struct pflow_header)

struct pflowstats {
        u_int64_t       pflow_flows;
        u_int64_t       pflow_packets;
        u_int64_t       pflow_onomem;
        u_int64_t       pflow_oerrors;
};

/*
 * Configuration structure for SIOCSETPFLOW SIOCGETPFLOW
 */
struct pflowreq {
        struct in_addr          sender_ip;
        struct in_addr          receiver_ip;
        u_int16_t               receiver_port;
        u_int16_t               addrmask;
#define PFLOW_MASK_SRCIP        0x01
#define PFLOW_MASK_DSTIP        0x02
#define PFLOW_MASK_DSTPRT       0x04
};

#ifdef _KERNEL
int export_pflow(struct pf_state *);
int pflow_sysctl(int *, u_int,  void *, size_t *, void *, size_t);
#endif /* _KERNEL */

#endif /* _NET_IF_PFLOW_H_ */