Hallo, dies ist ein Test.

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/*
 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef	_LIBUMAC_H
#define	_LIBUMAC_H

#include <sys/types.h>
#include <sys/uio.h>
#include <sys/ethernet.h>
#include <netinet/in.h>

#ifdef	__cplusplus
extern "C" {
#endif
typedef enum {
	UMAC_STATUS_OK = 0,
	UMAC_STATUS_BADARG,
	UMAC_STATUS_BADHDR,
	UMAC_STATUS_TOOBIG,
	UMAC_STATUS_NOTFOUND,
	UMAC_STATUS_NOTSUP,
	UMAC_STATUS_NOMEM,
	UMAC_STATUS_DENIED,
	UMAC_STATUS_DLERR,
	UMAC_STATUS_FAILED
} umac_status_t;
#define	UMAC_STRSIZE	1024

typedef struct __umac_handle	*umac_handle_t;

typedef struct umac_open_args {
	int	uo_unused;
} umac_open_args_t;
extern umac_status_t	umac_open(const char *, umac_open_args_t *,
    umac_handle_t *);

extern umac_status_t	umac_close(umac_handle_t);

#define	UMAC_PKT_IPv4_w_options	0x1
#define	UMAC_PKT_IPv6		0x2
#define	UMAC_PKT_VLAN		0x4

typedef struct umac_tx_args {
	/*
	 * pkt_options 0 mean default pkt type.
	 * L2 without vlan, len 14 bytes.
	 * L3 IPv4, 20 bytes, header len, checksum offload
	 * L4 only support UDP.
	 */
	uint16_t	ut_pkt_options;
	uint8_t		ut_mac_hdr_len;
	uint8_t		ut_ip_hdr_len;
	uint16_t	ut_pkt_len;
} umac_tx_args_t;
extern umac_status_t	umac_tx_vec(umac_handle_t, umac_tx_args_t *,
    uint8_t *, size_t, struct iovec *, int);

typedef struct umac_rx_args {
	uint32_t	ur_pkt_len;
} umac_rx_args_t;
extern umac_status_t	umac_rx_get(umac_handle_t, umac_rx_args_t *,
    char **);
extern umac_status_t	umac_rx_put(umac_handle_t, char *);

#define	UMAC_FILTER_L2	0x1
#define	UMAC_FILTER_FDIR	0x2
#define	UMAC_FILTER_DEFAULT	(UMAC_FILTER_L2 | UMAC_FILTER_FDIR)
typedef struct umac_filter_args {
	uint32_t	uf_type;
	uint8_t		uf_macaddr[ETHERADDRL];
	in6_addr_t	uf_src_ip;
	in6_addr_t	uf_dst_ip;
	in_port_t	uf_src_port;
	in_port_t	uf_dst_port;
} umac_filter_args_t;

extern umac_status_t	umac_setup_rx(umac_handle_t, umac_filter_args_t *);

extern int		umac_handle2fd(umac_handle_t);
extern uint32_t		umac_handle2statid(umac_handle_t);
extern const char	*umac_status2str(umac_status_t, char *);
extern void		umac_get_mac_addr(umac_handle_t, uint8_t *);

#ifdef	__cplusplus
}
#endif

#endif	/* _LIBUMAC_H */