/*
 * These are the public elements of the Linux kernel AX.25 code. A similar
 * file netrom.h exists for the NET/ROM protocol.
 */

#ifndef	AX25_KERNEL_H
#define	AX25_KERNEL_H

#define AX25_NEW_DEVIF  1

#define AX25_MTU	256
#define AX25_MAX_DIGIS	8

#define AX25_WINDOW	1
#define AX25_T1		2
#define AX25_N2		3
#define AX25_T3		4
#define AX25_T2		5
#define	AX25_BACKOFF	6
#define	AX25_EXTSEQ	7
#define	AX25_PIDINCL	8
#define AX25_IDLE	9
#define AX25_PACLEN	10
#define AX25_IAMDIGI	12

#define AX25_KILL	99

#define SIOCAX25GETUID		(SIOCPROTOPRIVATE+0)
#define SIOCAX25ADDUID		(SIOCPROTOPRIVATE+1)
#define SIOCAX25DELUID		(SIOCPROTOPRIVATE+2)
#define SIOCAX25NOUID		(SIOCPROTOPRIVATE+3)
#define SIOCAX25OPTRT		(SIOCPROTOPRIVATE+7)
#define SIOCAX25CTLCON		(SIOCPROTOPRIVATE+8)
#define SIOCAX25GETINFOOLD	(SIOCPROTOPRIVATE+9)
#define SIOCAX25ADDFWD		(SIOCPROTOPRIVATE+10)
#define SIOCAX25DELFWD		(SIOCPROTOPRIVATE+11)
#define SIOCAX25DEVCTL          (SIOCPROTOPRIVATE+12)
#define SIOCAX25GETINFO         (SIOCPROTOPRIVATE+13)

#define AX25_SET_DEV_BITRATE    0
#define AX25_SET_DEV_MODE       1

#define AX25_SET_RT_IPMODE	2

#define AX25_NOUID_DEFAULT	0
#define AX25_NOUID_BLOCK	1

typedef struct {
	char		ax25_call[7];	/* 6 call + SSID (shifted ascii!) */
} ax25_address;

struct sockaddr_ax25 {
	sa_family_t	sax25_family;
	ax25_address	sax25_call;
	int		sax25_ndigis;
	/* Digipeater ax25_address sets follow */
};

#define sax25_uid	sax25_ndigis

struct full_sockaddr_ax25 {
	struct sockaddr_ax25 fsa_ax25;
	ax25_address	fsa_digipeater[AX25_MAX_DIGIS];
};

#define fsax25_family fsa_ax25.sax25_family
#define fsax25_call   fsa_ax25.sax25_call
#define fsax25_ndigis fsa_ax25.sax25_ndigis

typedef struct {
	ax25_address            addr;
	ax25_address            digipeater[AX25_MAX_DIGIS];;
	unsigned char           dcount;
} ax25_path_t;

typedef struct {
	ax25_address            dest;
	ax25_address            src;
	ax25_address            digipeater[AX25_MAX_DIGIS];
	unsigned char           dcount;
	char                    lastrepeat;
} ax25_addr_t;

struct ax25_rtmsg {
	char            port_name[32];
	unsigned int    mode;
	ax25_addr_t     addr;
};

struct ax25_armsg {
	char            port_name[32];
	unsigned int    ip_addr;
	ax25_address    ax_addr;
};

struct ax25_pathmsg {
	char            port_name[32];
	unsigned int    mode;
	ax25_path_t     path;
};

struct ax25_nlmsg {

#define AX25_MSG_RTINFO 0
#define AX25_MSG_ARINFO 1
#define AX25_MSG_SETRT  2
#define AX25_MSG_DELRT  3
#define AX25_MSG_OPTRT  4
	unsigned int msg_type;

	union {
		unsigned char raw[128-sizeof(unsigned int)];
		struct ax25_rtmsg rtmsg;
		struct ax25_armsg armsg;
		struct ax25_pathmsg pathmsg;
	} msg;
};

struct ax25_routes_struct {
	ax25_address	port_addr;
	ax25_address	dest_addr;
	unsigned char	digi_count;
	ax25_address	digi_addr[AX25_MAX_DIGIS];
};

struct ax25_route_opt_struct {
	ax25_address	port_addr;
	ax25_address	dest_addr;
	int		cmd;
	int		arg;
};

struct ax25_ctl_struct {
	ax25_address	port_addr;
	ax25_address	source_addr;
	ax25_address	dest_addr;
	unsigned int	cmd;
	unsigned long	arg;
};

/* this will go away. Please do not export to user land */
struct ax25_info_struct_depreciated {
	unsigned int	n2, n2count;
	unsigned int	t1, t1timer;
	unsigned int	t2, t2timer;
	unsigned int	t3, t3timer;
	unsigned int	idle, idletimer;
	unsigned int	state;
	unsigned int	rcv_q, snd_q;
};

struct ax25_info_struct {
	unsigned int	n2, n2count;
	unsigned int	t1, t1timer;
	unsigned int	t2, t2timer;
	unsigned int	t3, t3timer;
	unsigned int	idle, idletimer;
	unsigned int	state;
	unsigned int	rcv_q, snd_q;
	unsigned int	vs, vr, va, vs_max;
	unsigned int	paclen;
	unsigned int	window;
};

struct ax25_fwd_struct {
	ax25_address	port_from;
	ax25_address	port_to;
};

#endif