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/* $OpenBSD: if_pflow.h,v 1.4 2009/01/03 21:47:32 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.
*/
#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;
union sc_flowp {
struct pflow_flow *s;
};
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;
struct timeout sc_tmo;
struct in_addr sc_sender_ip;
u_int16_t sc_sender_port;
struct in_addr sc_receiver_ip;
u_int16_t sc_receiver_port;
union sc_flowp sc_flowp;
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_ */
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