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/* $OpenBSD: if_etherbridge.h,v 1.4 2021/07/05 04:17:41 dlg Exp $ */
/*
* Copyright (c) 2018, 2021 David Gwynne <dlg@openbsd.org>
*
* 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 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_ETHERBRIDGE_H_
#define _NET_ETHERBRIDGE_H_
#define ETHERBRIDGE_TABLE_BITS 8
#define ETHERBRIDGE_TABLE_SIZE (1U << ETHERBRIDGE_TABLE_BITS)
#define ETHERBRIDGE_TABLE_MASK (ETHERBRIDGE_TABLE_SIZE - 1)
struct etherbridge_ops {
int (*eb_op_port_eq)(void *, void *, void *);
void *(*eb_op_port_take)(void *, void *);
void (*eb_op_port_rele)(void *, void *);
size_t (*eb_op_port_ifname)(void *, char *, size_t, void *);
void (*eb_op_port_sa)(void *, struct sockaddr_storage *, void *);
};
struct etherbridge;
struct eb_entry {
SMR_TAILQ_ENTRY(eb_entry) ebe_lentry;
union {
RBT_ENTRY(eb_entry) _ebe_tentry;
TAILQ_ENTRY(eb_entry) _ebe_qentry;
} _ebe_entries;
#define ebe_tentry _ebe_entries._ebe_tentry
#define ebe_qentry _ebe_entries._ebe_qentry
uint64_t ebe_addr;
void *ebe_port;
unsigned int ebe_type;
#define EBE_DYNAMIC 0x0
#define EBE_STATIC 0x1
#define EBE_DEAD 0xdead
time_t ebe_age;
struct etherbridge *ebe_etherbridge;
struct smr_entry ebe_smr_entry;
};
SMR_TAILQ_HEAD(eb_list, eb_entry);
RBT_HEAD(eb_tree, eb_entry);
TAILQ_HEAD(eb_queue, eb_entry);
struct etherbridge {
const char *eb_name;
const struct etherbridge_ops *eb_ops;
void *eb_cookie;
struct mutex eb_lock;
unsigned int eb_num;
unsigned int eb_max;
int eb_max_age; /* seconds */
struct timeout eb_tmo_age;
struct eb_list *eb_table;
struct eb_tree eb_tree;
};
int etherbridge_init(struct etherbridge *, const char *,
const struct etherbridge_ops *, void *);
int etherbridge_up(struct etherbridge *);
int etherbridge_down(struct etherbridge *);
void etherbridge_destroy(struct etherbridge *);
void etherbridge_map(struct etherbridge *, void *, uint64_t);
void etherbridge_map_ea(struct etherbridge *, void *,
const struct ether_addr *);
void *etherbridge_resolve(struct etherbridge *, uint64_t);
void *etherbridge_resolve_ea(struct etherbridge *,
const struct ether_addr *);
void etherbridge_detach_port(struct etherbridge *, void *);
/* ioctl support */
int etherbridge_set_max(struct etherbridge *, struct ifbrparam *);
int etherbridge_get_max(struct etherbridge *, struct ifbrparam *);
int etherbridge_set_tmo(struct etherbridge *, struct ifbrparam *);
int etherbridge_get_tmo(struct etherbridge *, struct ifbrparam *);
int etherbridge_rtfind(struct etherbridge *, struct ifbaconf *);
int etherbridge_add_addr(struct etherbridge *, void *,
const struct ether_addr *, unsigned int);
int etherbridge_del_addr(struct etherbridge *, const struct ether_addr *);
void etherbridge_flush(struct etherbridge *, uint32_t);
static inline unsigned int
etherbridge_num(const struct etherbridge *eb)
{
return (eb->eb_num);
}
#endif /* _NET_ETHERBRIDGE_H_ */
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