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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2015-2019 Yandex LLC
* Copyright (c) 2015 Alexander V. Chernikov <melifaro@FreeBSD.org>
* Copyright (c) 2015-2019 Andrey V. Elsukov <ae@FreeBSD.org>
*
* 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 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 _NETINET6_IP_FW_NAT64_H_
#define _NETINET6_IP_FW_NAT64_H_
struct ipfw_nat64stl_stats {
uint64_t opcnt64; /* 6to4 of packets translated */
uint64_t opcnt46; /* 4to6 of packets translated */
uint64_t ofrags; /* number of fragments generated */
uint64_t ifrags; /* number of fragments received */
uint64_t oerrors; /* number of output errors */
uint64_t noroute4;
uint64_t noroute6;
uint64_t noproto; /* Protocol not supported */
uint64_t nomem; /* mbuf allocation failed */
uint64_t dropped; /* dropped due to some errors */
};
struct ipfw_nat64clat_stats {
uint64_t opcnt64; /* 6to4 of packets translated */
uint64_t opcnt46; /* 4to6 of packets translated */
uint64_t ofrags; /* number of fragments generated */
uint64_t ifrags; /* number of fragments received */
uint64_t oerrors; /* number of output errors */
uint64_t noroute4;
uint64_t noroute6;
uint64_t noproto; /* Protocol not supported */
uint64_t nomem; /* mbuf allocation failed */
uint64_t dropped; /* dropped due to some errors */
};
struct ipfw_nat64lsn_stats {
uint64_t opcnt64; /* 6to4 of packets translated */
uint64_t opcnt46; /* 4to6 of packets translated */
uint64_t ofrags; /* number of fragments generated */
uint64_t ifrags; /* number of fragments received */
uint64_t oerrors; /* number of output errors */
uint64_t noroute4;
uint64_t noroute6;
uint64_t noproto; /* Protocol not supported */
uint64_t nomem; /* mbuf allocation failed */
uint64_t dropped; /* dropped due to some errors */
uint64_t nomatch4; /* No addr/port match */
uint64_t jcalls; /* Number of job handler calls */
uint64_t jrequests; /* Number of job requests */
uint64_t jhostsreq; /* Number of job host requests */
uint64_t jportreq; /* Number of portgroup requests */
uint64_t jhostfails; /* Number of failed host allocs */
uint64_t jportfails; /* Number of failed portgroup allocs */
uint64_t jreinjected; /* Number of packets reinjected to q */
uint64_t jmaxlen; /* Max queue length reached */
uint64_t jnomem; /* No memory to alloc queue item */
uint64_t screated; /* Number of states created */
uint64_t sdeleted; /* Number of states deleted */
uint64_t spgcreated; /* Number of portgroups created */
uint64_t spgdeleted; /* Number of portgroups deleted */
uint64_t hostcount; /* Number of hosts */
uint64_t tcpchunks; /* Number of TCP portgroups */
uint64_t udpchunks; /* Number of UDP portgroups */
uint64_t icmpchunks; /* Number of ICMP portgroups */
uint64_t _reserved[4];
};
#define NAT64_LOG 0x0001 /* Enable logging via BPF */
#define NAT64_ALLOW_PRIVATE 0x0002 /* Allow private IPv4 address
* translation
*/
#define NAT64LSN_ALLOW_SWAPCONF 0x0004 /* Allow configuration exchange
* between NAT64LSN instances
* during the sets swapping.
*/
typedef struct _ipfw_nat64stl_cfg {
char name[64]; /* NAT name */
ipfw_obj_ntlv ntlv6; /* object name tlv */
ipfw_obj_ntlv ntlv4; /* object name tlv */
struct in6_addr prefix6; /* NAT64 prefix */
uint8_t plen6; /* Prefix length */
uint8_t set; /* Named instance set [0..31] */
uint8_t spare[2];
uint32_t flags;
} ipfw_nat64stl_cfg;
typedef struct _ipfw_nat64clat_cfg {
char name[64]; /* NAT name */
struct in6_addr plat_prefix; /* NAT64 (PLAT) prefix */
struct in6_addr clat_prefix; /* Client (CLAT) prefix */
uint8_t plat_plen; /* PLAT Prefix length */
uint8_t clat_plen; /* CLAT Prefix length */
uint8_t set; /* Named instance set [0..31] */
uint8_t spare;
uint32_t flags;
} ipfw_nat64clat_cfg;
/*
* NAT64LSN default configuration values
*/
#define NAT64LSN_MAX_PORTS 2048 /* Unused */
#define NAT64LSN_JMAXLEN 2048 /* Max outstanding requests. */
#define NAT64LSN_TCP_SYN_AGE 10 /* State's TTL after SYN received. */
#define NAT64LSN_TCP_EST_AGE (2 * 3600) /* TTL for established connection */
#define NAT64LSN_TCP_FIN_AGE 180 /* State's TTL after FIN/RST received */
#define NAT64LSN_UDP_AGE 120 /* TTL for UDP states */
#define NAT64LSN_ICMP_AGE 60 /* TTL for ICMP states */
#define NAT64LSN_HOST_AGE 3600 /* TTL for stale host entry */
#define NAT64LSN_PG_AGE 900 /* TTL for stale ports groups */
typedef struct _ipfw_nat64lsn_cfg {
char name[64]; /* NAT name */
uint32_t flags;
uint32_t max_ports; /* Unused */
uint32_t agg_prefix_len; /* Unused */
uint32_t agg_prefix_max; /* Unused */
struct in_addr prefix4;
uint16_t plen4; /* Prefix length */
uint16_t plen6; /* Prefix length */
struct in6_addr prefix6; /* NAT64 prefix */
uint32_t jmaxlen; /* Max jobqueue length */
uint16_t min_port; /* Unused */
uint16_t max_port; /* Unused */
uint16_t nh_delete_delay;/* Stale host delete delay */
uint16_t pg_delete_delay;/* Stale portgroup delete delay */
uint16_t st_syn_ttl; /* TCP syn expire */
uint16_t st_close_ttl; /* TCP fin expire */
uint16_t st_estab_ttl; /* TCP established expire */
uint16_t st_udp_ttl; /* UDP expire */
uint16_t st_icmp_ttl; /* ICMP expire */
uint8_t set; /* Named instance set [0..31] */
uint8_t states_chunks; /* Number of states chunks per PG */
} ipfw_nat64lsn_cfg;
typedef struct _ipfw_nat64lsn_state {
struct in_addr daddr; /* Remote IPv4 address */
uint16_t dport; /* Remote destination port */
uint16_t aport; /* Local alias port */
uint16_t sport; /* Source port */
uint8_t flags; /* State flags */
uint8_t spare[3];
uint16_t idle; /* Last used time */
} ipfw_nat64lsn_state;
typedef struct _ipfw_nat64lsn_stg {
uint64_t next_idx; /* next state index */
struct in_addr alias4; /* IPv4 alias address */
uint8_t proto; /* protocol */
uint8_t flags;
uint16_t spare;
struct in6_addr host6; /* Bound IPv6 host */
uint32_t count; /* Number of states */
uint32_t spare2;
} ipfw_nat64lsn_stg;
typedef struct _ipfw_nat64lsn_state_v1 {
struct in6_addr host6; /* Bound IPv6 host */
struct in_addr daddr; /* Remote IPv4 address */
uint16_t dport; /* Remote destination port */
uint16_t aport; /* Local alias port */
uint16_t sport; /* Source port */
uint16_t spare;
uint16_t idle; /* Last used time */
uint8_t flags; /* State flags */
uint8_t proto; /* protocol */
} ipfw_nat64lsn_state_v1;
typedef struct _ipfw_nat64lsn_stg_v1 {
union nat64lsn_pgidx {
uint64_t index;
struct {
uint8_t chunk; /* states chunk */
uint8_t proto; /* protocol */
uint16_t port; /* base port */
in_addr_t addr; /* alias address */
};
} next; /* next state index */
struct in_addr alias4; /* IPv4 alias address */
uint32_t count; /* Number of states */
} ipfw_nat64lsn_stg_v1;
#endif /* _NETINET6_IP_FW_NAT64_H_ */