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      1 /*
      2  * These are the public elements of the Linux kernel AX.25 code. A similar
      3  * file netrom.h exists for the NET/ROM protocol.
      4  */
      5 
      6 #ifndef	AX25_KERNEL_H
      7 #define	AX25_KERNEL_H
      8 
      9 #include <linux/socket.h>
     10 
     11 #define AX25_MTU	256
     12 #define AX25_MAX_DIGIS  8
     13 
     14 #define AX25_WINDOW	1
     15 #define AX25_T1		2
     16 #define AX25_N2		3
     17 #define AX25_T3		4
     18 #define AX25_T2		5
     19 #define	AX25_BACKOFF	6
     20 #define	AX25_EXTSEQ	7
     21 #define	AX25_PIDINCL	8
     22 #define AX25_IDLE	9
     23 #define AX25_PACLEN	10
     24 #define AX25_IAMDIGI	12
     25 
     26 #define AX25_KILL	99
     27 
     28 #define SIOCAX25GETUID		(SIOCPROTOPRIVATE+0)
     29 #define SIOCAX25ADDUID		(SIOCPROTOPRIVATE+1)
     30 #define SIOCAX25DELUID		(SIOCPROTOPRIVATE+2)
     31 #define SIOCAX25NOUID		(SIOCPROTOPRIVATE+3)
     32 #define SIOCAX25OPTRT		(SIOCPROTOPRIVATE+7)
     33 #define SIOCAX25CTLCON		(SIOCPROTOPRIVATE+8)
     34 #define SIOCAX25GETINFOOLD	(SIOCPROTOPRIVATE+9)
     35 #define SIOCAX25ADDFWD		(SIOCPROTOPRIVATE+10)
     36 #define SIOCAX25DELFWD		(SIOCPROTOPRIVATE+11)
     37 #define SIOCAX25DEVCTL          (SIOCPROTOPRIVATE+12)
     38 #define SIOCAX25GETINFO         (SIOCPROTOPRIVATE+13)
     39 
     40 #define AX25_SET_RT_IPMODE	2
     41 
     42 #define AX25_NOUID_DEFAULT	0
     43 #define AX25_NOUID_BLOCK	1
     44 
     45 typedef struct {
     46 	char		ax25_call[7];	/* 6 call + SSID (shifted ascii!) */
     47 } ax25_address;
     48 
     49 struct sockaddr_ax25 {
     50 	__kernel_sa_family_t sax25_family;
     51 	ax25_address	sax25_call;
     52 	int		sax25_ndigis;
     53 	/* Digipeater ax25_address sets follow */
     54 };
     55 
     56 #define sax25_uid	sax25_ndigis
     57 
     58 struct full_sockaddr_ax25 {
     59 	struct sockaddr_ax25 fsa_ax25;
     60 	ax25_address	fsa_digipeater[AX25_MAX_DIGIS];
     61 };
     62 
     63 struct ax25_routes_struct {
     64 	ax25_address	port_addr;
     65 	ax25_address	dest_addr;
     66 	unsigned char	digi_count;
     67 	ax25_address	digi_addr[AX25_MAX_DIGIS];
     68 };
     69 
     70 struct ax25_route_opt_struct {
     71 	ax25_address	port_addr;
     72 	ax25_address	dest_addr;
     73 	int		cmd;
     74 	int		arg;
     75 };
     76 
     77 struct ax25_ctl_struct {
     78         ax25_address            port_addr;
     79         ax25_address            source_addr;
     80         ax25_address            dest_addr;
     81         unsigned int            cmd;
     82         unsigned long           arg;
     83         unsigned char           digi_count;
     84         ax25_address            digi_addr[AX25_MAX_DIGIS];
     85 };
     86 
     87 /* this will go away. Please do not export to user land */
     88 struct ax25_info_struct_deprecated {
     89 	unsigned int	n2, n2count;
     90 	unsigned int	t1, t1timer;
     91 	unsigned int	t2, t2timer;
     92 	unsigned int	t3, t3timer;
     93 	unsigned int	idle, idletimer;
     94 	unsigned int	state;
     95 	unsigned int	rcv_q, snd_q;
     96 };
     97 
     98 struct ax25_info_struct {
     99 	unsigned int	n2, n2count;
    100 	unsigned int	t1, t1timer;
    101 	unsigned int	t2, t2timer;
    102 	unsigned int	t3, t3timer;
    103 	unsigned int	idle, idletimer;
    104 	unsigned int	state;
    105 	unsigned int	rcv_q, snd_q;
    106 	unsigned int	vs, vr, va, vs_max;
    107 	unsigned int	paclen;
    108 	unsigned int	window;
    109 };
    110 
    111 struct ax25_fwd_struct {
    112 	ax25_address	port_from;
    113 	ax25_address	port_to;
    114 };
    115 
    116 #endif
    117