[mirror_ubuntu-bionic-kernel.git] / include / net / rose.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *	Declarations of Rose type objects.
 *
 *	Jonathan Naylor G4KLX	25/8/96
 */

#ifndef _ROSE_H
#define _ROSE_H 

#include <linux/rose.h>
#include <net/sock.h>

#define	ROSE_ADDR_LEN			5

#define	ROSE_MIN_LEN			3

#define	ROSE_CALL_REQ_ADDR_LEN_OFF	3
#define	ROSE_CALL_REQ_ADDR_LEN_VAL	0xAA	/* each address is 10 digits */
#define	ROSE_CALL_REQ_DEST_ADDR_OFF	4
#define	ROSE_CALL_REQ_SRC_ADDR_OFF	9
#define	ROSE_CALL_REQ_FACILITIES_OFF	14

#define	ROSE_GFI			0x10
#define	ROSE_Q_BIT			0x80
#define	ROSE_D_BIT			0x40
#define	ROSE_M_BIT			0x10

#define	ROSE_CALL_REQUEST		0x0B
#define	ROSE_CALL_ACCEPTED		0x0F
#define	ROSE_CLEAR_REQUEST		0x13
#define	ROSE_CLEAR_CONFIRMATION		0x17
#define	ROSE_DATA			0x00
#define	ROSE_INTERRUPT			0x23
#define	ROSE_INTERRUPT_CONFIRMATION	0x27
#define	ROSE_RR				0x01
#define	ROSE_RNR			0x05
#define	ROSE_REJ			0x09
#define	ROSE_RESET_REQUEST		0x1B
#define	ROSE_RESET_CONFIRMATION		0x1F
#define	ROSE_REGISTRATION_REQUEST	0xF3
#define	ROSE_REGISTRATION_CONFIRMATION	0xF7
#define	ROSE_RESTART_REQUEST		0xFB
#define	ROSE_RESTART_CONFIRMATION	0xFF
#define	ROSE_DIAGNOSTIC			0xF1
#define	ROSE_ILLEGAL			0xFD

/* Define Link State constants. */

enum {
	ROSE_STATE_0,			/* Ready */
	ROSE_STATE_1,			/* Awaiting Call Accepted */
	ROSE_STATE_2,			/* Awaiting Clear Confirmation */
	ROSE_STATE_3,			/* Data Transfer */
	ROSE_STATE_4,			/* Awaiting Reset Confirmation */
	ROSE_STATE_5			/* Deferred Call Acceptance */
};

#define ROSE_DEFAULT_T0			180000		/* Default T10 T20 value */
#define ROSE_DEFAULT_T1			200000		/* Default T11 T21 value */
#define ROSE_DEFAULT_T2			180000		/* Default T12 T22 value */
#define	ROSE_DEFAULT_T3			180000		/* Default T13 T23 value */
#define	ROSE_DEFAULT_HB			5000		/* Default Holdback value */
#define	ROSE_DEFAULT_IDLE		0		/* No Activity Timeout - none */
#define	ROSE_DEFAULT_ROUTING		1		/* Default routing flag */
#define	ROSE_DEFAULT_FAIL_TIMEOUT	120000		/* Time until link considered usable */
#define	ROSE_DEFAULT_MAXVC		50		/* Maximum number of VCs per neighbour */
#define	ROSE_DEFAULT_WINDOW_SIZE	7		/* Default window size */

#define ROSE_MODULUS 			8
#define	ROSE_MAX_PACKET_SIZE		251		/* Maximum packet size */

#define	ROSE_COND_ACK_PENDING		0x01
#define	ROSE_COND_PEER_RX_BUSY		0x02
#define	ROSE_COND_OWN_RX_BUSY		0x04

#define	FAC_NATIONAL			0x00
#define	FAC_CCITT			0x0F

#define	FAC_NATIONAL_RAND		0x7F
#define	FAC_NATIONAL_FLAGS		0x3F
#define	FAC_NATIONAL_DEST_DIGI		0xE9
#define	FAC_NATIONAL_SRC_DIGI		0xEB
#define	FAC_NATIONAL_FAIL_CALL		0xED
#define	FAC_NATIONAL_FAIL_ADD		0xEE
#define	FAC_NATIONAL_DIGIS			0xEF

#define	FAC_CCITT_DEST_NSAP		0xC9
#define	FAC_CCITT_SRC_NSAP		0xCB

struct rose_neigh {
	struct rose_neigh	*next;
	ax25_address		callsign;
	ax25_digi		*digipeat;
	ax25_cb			*ax25;
	struct net_device		*dev;
	unsigned short		count;
	unsigned short		use;
	unsigned int		number;
	char			restarted;
	char			dce_mode;
	char			loopback;
	struct sk_buff_head	queue;
	struct timer_list	t0timer;
	struct timer_list	ftimer;
};

struct rose_node {
	struct rose_node	*next;
	rose_address		address;
	unsigned short		mask;
	unsigned char		count;
	char			loopback;
	struct rose_neigh	*neighbour[3];
};

struct rose_route {
	struct rose_route	*next;
	unsigned int		lci1, lci2;
	rose_address		src_addr, dest_addr;
	ax25_address		src_call, dest_call;
	struct rose_neigh 	*neigh1, *neigh2;
	unsigned int		rand;
};

struct rose_sock {
	struct sock		sock;
	rose_address		source_addr,   dest_addr;
	ax25_address		source_call,   dest_call;
	unsigned char		source_ndigis, dest_ndigis;
	ax25_address		source_digis[ROSE_MAX_DIGIS];
	ax25_address		dest_digis[ROSE_MAX_DIGIS];
	struct rose_neigh	*neighbour;
	struct net_device		*device;
	unsigned int		lci, rand;
	unsigned char		state, condition, qbitincl, defer;
	unsigned char		cause, diagnostic;
	unsigned short		vs, vr, va, vl;
	unsigned long		t1, t2, t3, hb, idle;
#ifdef M_BIT
	unsigned short		fraglen;
	struct sk_buff_head	frag_queue;
#endif
	struct sk_buff_head	ack_queue;
	struct rose_facilities_struct facilities;
	struct timer_list	timer;
	struct timer_list	idletimer;
};

#define rose_sk(sk) ((struct rose_sock *)(sk))

/* af_rose.c */
extern ax25_address rose_callsign;
extern int  sysctl_rose_restart_request_timeout;
extern int  sysctl_rose_call_request_timeout;
extern int  sysctl_rose_reset_request_timeout;
extern int  sysctl_rose_clear_request_timeout;
extern int  sysctl_rose_no_activity_timeout;
extern int  sysctl_rose_ack_hold_back_timeout;
extern int  sysctl_rose_routing_control;
extern int  sysctl_rose_link_fail_timeout;
extern int  sysctl_rose_maximum_vcs;
extern int  sysctl_rose_window_size;

int rosecmp(rose_address *, rose_address *);
int rosecmpm(rose_address *, rose_address *, unsigned short);
char *rose2asc(char *buf, const rose_address *);
struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
void rose_kill_by_neigh(struct rose_neigh *);
unsigned int rose_new_lci(struct rose_neigh *);
int rose_rx_call_request(struct sk_buff *, struct net_device *,
			 struct rose_neigh *, unsigned int);
void rose_destroy_socket(struct sock *);

/* rose_dev.c */
void rose_setup(struct net_device *);

/* rose_in.c */
int rose_process_rx_frame(struct sock *, struct sk_buff *);

/* rose_link.c */
void rose_start_ftimer(struct rose_neigh *);
void rose_stop_ftimer(struct rose_neigh *);
void rose_stop_t0timer(struct rose_neigh *);
int rose_ftimer_running(struct rose_neigh *);
void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *,
			  unsigned short);
void rose_transmit_clear_request(struct rose_neigh *, unsigned int,
				 unsigned char, unsigned char);
void rose_transmit_link(struct sk_buff *, struct rose_neigh *);

/* rose_loopback.c */
void rose_loopback_init(void);
void rose_loopback_clear(void);
int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);

/* rose_out.c */
void rose_kick(struct sock *);
void rose_enquiry_response(struct sock *);

/* rose_route.c */
extern struct rose_neigh *rose_loopback_neigh;
extern const struct file_operations rose_neigh_fops;
extern const struct file_operations rose_nodes_fops;
extern const struct file_operations rose_routes_fops;

void rose_add_loopback_neigh(void);
int __must_check rose_add_loopback_node(rose_address *);
void rose_del_loopback_node(rose_address *);
void rose_rt_device_down(struct net_device *);
void rose_link_device_down(struct net_device *);
struct net_device *rose_dev_first(void);
struct net_device *rose_dev_get(rose_address *);
struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *,
				  unsigned char *, int);
int rose_rt_ioctl(unsigned int, void __user *);
void rose_link_failed(ax25_cb *, int);
int rose_route_frame(struct sk_buff *, ax25_cb *);
void rose_rt_free(void);

/* rose_subr.c */
void rose_clear_queues(struct sock *);
void rose_frames_acked(struct sock *, unsigned short);
void rose_requeue_frames(struct sock *);
int rose_validate_nr(struct sock *, unsigned short);
void rose_write_internal(struct sock *, int);
int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
int rose_parse_facilities(unsigned char *, unsigned int,
			  struct rose_facilities_struct *);
void rose_disconnect(struct sock *, int, int, int);

/* rose_timer.c */
void rose_start_heartbeat(struct sock *);
void rose_start_t1timer(struct sock *);
void rose_start_t2timer(struct sock *);
void rose_start_t3timer(struct sock *);
void rose_start_hbtimer(struct sock *);
void rose_start_idletimer(struct sock *);
void rose_stop_heartbeat(struct sock *);
void rose_stop_timer(struct sock *);
void rose_stop_idletimer(struct sock *);

/* sysctl_net_rose.c */
void rose_register_sysctl(void);
void rose_unregister_sysctl(void);

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	/*
	3	* Declarations of Rose type objects.
	4	*
	5	* Jonathan Naylor G4KLX 25/8/96
	6	*/
	7
	8	#ifndef _ROSE_H
	9	#define _ROSE_H
	10
	11	#include <linux/rose.h>
	12	#include <net/sock.h>
	13
	14	#define ROSE_ADDR_LEN 5
	15
	16	#define ROSE_MIN_LEN 3
	17
e0bccd31 BH	18	#define ROSE_CALL_REQ_ADDR_LEN_OFF 3
	19	#define ROSE_CALL_REQ_ADDR_LEN_VAL 0xAA /* each address is 10 digits */
	20	#define ROSE_CALL_REQ_DEST_ADDR_OFF 4
	21	#define ROSE_CALL_REQ_SRC_ADDR_OFF 9
	22	#define ROSE_CALL_REQ_FACILITIES_OFF 14
	23
1da177e4 LT	24	#define ROSE_GFI 0x10
	25	#define ROSE_Q_BIT 0x80
	26	#define ROSE_D_BIT 0x40
	27	#define ROSE_M_BIT 0x10
	28
	29	#define ROSE_CALL_REQUEST 0x0B
	30	#define ROSE_CALL_ACCEPTED 0x0F
	31	#define ROSE_CLEAR_REQUEST 0x13
	32	#define ROSE_CLEAR_CONFIRMATION 0x17
	33	#define ROSE_DATA 0x00
	34	#define ROSE_INTERRUPT 0x23
	35	#define ROSE_INTERRUPT_CONFIRMATION 0x27
	36	#define ROSE_RR 0x01
	37	#define ROSE_RNR 0x05
	38	#define ROSE_REJ 0x09
	39	#define ROSE_RESET_REQUEST 0x1B
	40	#define ROSE_RESET_CONFIRMATION 0x1F
	41	#define ROSE_REGISTRATION_REQUEST 0xF3
	42	#define ROSE_REGISTRATION_CONFIRMATION 0xF7
	43	#define ROSE_RESTART_REQUEST 0xFB
	44	#define ROSE_RESTART_CONFIRMATION 0xFF
	45	#define ROSE_DIAGNOSTIC 0xF1
	46	#define ROSE_ILLEGAL 0xFD
	47
	48	/* Define Link State constants. */
	49
	50	enum {
	51	ROSE_STATE_0, /* Ready */
	52	ROSE_STATE_1, /* Awaiting Call Accepted */
	53	ROSE_STATE_2, /* Awaiting Clear Confirmation */
	54	ROSE_STATE_3, /* Data Transfer */
	55	ROSE_STATE_4, /* Awaiting Reset Confirmation */
	56	ROSE_STATE_5 /* Deferred Call Acceptance */
	57	};
	58
82e84249 RB	59	#define ROSE_DEFAULT_T0 180000 /* Default T10 T20 value */
	60	#define ROSE_DEFAULT_T1 200000 /* Default T11 T21 value */
	61	#define ROSE_DEFAULT_T2 180000 /* Default T12 T22 value */
	62	#define ROSE_DEFAULT_T3 180000 /* Default T13 T23 value */
	63	#define ROSE_DEFAULT_HB 5000 /* Default Holdback value */
	64	#define ROSE_DEFAULT_IDLE 0 /* No Activity Timeout - none */
1da177e4	65	#define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */
82e84249	66	#define ROSE_DEFAULT_FAIL_TIMEOUT 120000 /* Time until link considered usable */
1da177e4 LT	67	#define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */
	68	#define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */
	69
	70	#define ROSE_MODULUS 8
	71	#define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */
	72
	73	#define ROSE_COND_ACK_PENDING 0x01
	74	#define ROSE_COND_PEER_RX_BUSY 0x02
	75	#define ROSE_COND_OWN_RX_BUSY 0x04
	76
	77	#define FAC_NATIONAL 0x00
	78	#define FAC_CCITT 0x0F
	79
	80	#define FAC_NATIONAL_RAND 0x7F
	81	#define FAC_NATIONAL_FLAGS 0x3F
	82	#define FAC_NATIONAL_DEST_DIGI 0xE9
	83	#define FAC_NATIONAL_SRC_DIGI 0xEB
	84	#define FAC_NATIONAL_FAIL_CALL 0xED
	85	#define FAC_NATIONAL_FAIL_ADD 0xEE
	86	#define FAC_NATIONAL_DIGIS 0xEF
	87
	88	#define FAC_CCITT_DEST_NSAP 0xC9
	89	#define FAC_CCITT_SRC_NSAP 0xCB
	90
	91	struct rose_neigh {
	92	struct rose_neigh *next;
	93	ax25_address callsign;
	94	ax25_digi *digipeat;
	95	ax25_cb *ax25;
	96	struct net_device *dev;
	97	unsigned short count;
	98	unsigned short use;
	99	unsigned int number;
	100	char restarted;
	101	char dce_mode;
	102	char loopback;
	103	struct sk_buff_head queue;
	104	struct timer_list t0timer;
	105	struct timer_list ftimer;
	106	};
	107
	108	struct rose_node {
	109	struct rose_node *next;
	110	rose_address address;
	111	unsigned short mask;
	112	unsigned char count;
	113	char loopback;
	114	struct rose_neigh *neighbour[3];
	115	};
	116
	117	struct rose_route {
	118	struct rose_route *next;
	119	unsigned int lci1, lci2;
	120	rose_address src_addr, dest_addr;
	121	ax25_address src_call, dest_call;
	122	struct rose_neigh neigh1, neigh2;
	123	unsigned int rand;
	124	};
	125
	126	struct rose_sock {
	127	struct sock sock;
	128	rose_address source_addr, dest_addr;
	129	ax25_address source_call, dest_call;
	130	unsigned char source_ndigis, dest_ndigis;
131	ax25_address source_digis[ROSE_MAX_DIGIS];
132	ax25_address dest_digis[ROSE_MAX_DIGIS];
133	struct rose_neigh *neighbour;
134	struct net_device *device;
135	unsigned int lci, rand;
136	unsigned char state, condition, qbitincl, defer;
137	unsigned char cause, diagnostic;
138	unsigned short vs, vr, va, vl;
139	unsigned long t1, t2, t3, hb, idle;
140	#ifdef M_BIT
141	unsigned short fraglen;
142	struct sk_buff_head frag_queue;
143	#endif
144	struct sk_buff_head ack_queue;
145	struct rose_facilities_struct facilities;
146	struct timer_list timer;
147	struct timer_list idletimer;
148	};
149
150	#define rose_sk(sk) ((struct rose_sock *)(sk))
151
152	/* af_rose.c */
153	extern ax25_address rose_callsign;
154	extern int sysctl_rose_restart_request_timeout;
155	extern int sysctl_rose_call_request_timeout;
156	extern int sysctl_rose_reset_request_timeout;
157	extern int sysctl_rose_clear_request_timeout;
158	extern int sysctl_rose_no_activity_timeout;
159	extern int sysctl_rose_ack_hold_back_timeout;
160	extern int sysctl_rose_routing_control;
161	extern int sysctl_rose_link_fail_timeout;
162	extern int sysctl_rose_maximum_vcs;
163	extern int sysctl_rose_window_size;
54df3b96 JP	164
	165	int rosecmp(rose_address , rose_address );
	166	int rosecmpm(rose_address , rose_address , unsigned short);
	167	char rose2asc(char buf, const rose_address *);
	168	struct sock rose_find_socket(unsigned int, struct rose_neigh );
	169	void rose_kill_by_neigh(struct rose_neigh *);
	170	unsigned int rose_new_lci(struct rose_neigh *);
	171	int rose_rx_call_request(struct sk_buff , struct net_device ,
	172	struct rose_neigh *, unsigned int);
	173	void rose_destroy_socket(struct sock *);
1da177e4 LT	174
1da177e4 LT	175	/* rose_dev.c */
54df3b96	176	void rose_setup(struct net_device *);
1da177e4 LT	177
1da177e4 LT	178	/* rose_in.c */
54df3b96	179	int rose_process_rx_frame(struct sock , struct sk_buff );
1da177e4 LT	180
1da177e4 LT	181	/* rose_link.c */
54df3b96 JP	182	void rose_start_ftimer(struct rose_neigh *);
	183	void rose_stop_ftimer(struct rose_neigh *);
	184	void rose_stop_t0timer(struct rose_neigh *);
	185	int rose_ftimer_running(struct rose_neigh *);
	186	void rose_link_rx_restart(struct sk_buff , struct rose_neigh ,
	187	unsigned short);
	188	void rose_transmit_clear_request(struct rose_neigh *, unsigned int,
	189	unsigned char, unsigned char);
	190	void rose_transmit_link(struct sk_buff , struct rose_neigh );
1da177e4 LT	191
1da177e4 LT	192	/* rose_loopback.c */
54df3b96 JP	193	void rose_loopback_init(void);
	194	void rose_loopback_clear(void);
	195	int rose_loopback_queue(struct sk_buff , struct rose_neigh );
1da177e4 LT	196
1da177e4 LT	197	/* rose_out.c */
54df3b96 JP	198	void rose_kick(struct sock *);
54df3b96 JP	199	void rose_enquiry_response(struct sock *);
1da177e4 LT	200
1da177e4 LT	201	/* rose_route.c */
891e6a93	202	extern struct rose_neigh *rose_loopback_neigh;
54047320 AV	203	extern const struct file_operations rose_neigh_fops;
	204	extern const struct file_operations rose_nodes_fops;
	205	extern const struct file_operations rose_routes_fops;
1da177e4	206
54df3b96 JP	207	void rose_add_loopback_neigh(void);
	208	int __must_check rose_add_loopback_node(rose_address *);
	209	void rose_del_loopback_node(rose_address *);
	210	void rose_rt_device_down(struct net_device *);
	211	void rose_link_device_down(struct net_device *);
	212	struct net_device *rose_dev_first(void);
	213	struct net_device rose_dev_get(rose_address );
	214	struct rose_route rose_route_free_lci(unsigned int, struct rose_neigh );
	215	struct rose_neigh rose_get_neigh(rose_address , unsigned char *,
	216	unsigned char *, int);
	217	int rose_rt_ioctl(unsigned int, void __user *);
	218	void rose_link_failed(ax25_cb *, int);
	219	int rose_route_frame(struct sk_buff , ax25_cb );
	220	void rose_rt_free(void);
1da177e4 LT	221
1da177e4 LT	222	/* rose_subr.c */
54df3b96 JP	223	void rose_clear_queues(struct sock *);
	224	void rose_frames_acked(struct sock *, unsigned short);
	225	void rose_requeue_frames(struct sock *);
	226	int rose_validate_nr(struct sock *, unsigned short);
	227	void rose_write_internal(struct sock *, int);
	228	int rose_decode(struct sk_buff , int , int , int , int , int );
	229	int rose_parse_facilities(unsigned char *, unsigned int,
	230	struct rose_facilities_struct *);
	231	void rose_disconnect(struct sock *, int, int, int);
1da177e4 LT	232
1da177e4 LT	233	/* rose_timer.c */
54df3b96 JP	234	void rose_start_heartbeat(struct sock *);
	235	void rose_start_t1timer(struct sock *);
	236	void rose_start_t2timer(struct sock *);
	237	void rose_start_t3timer(struct sock *);
	238	void rose_start_hbtimer(struct sock *);
	239	void rose_start_idletimer(struct sock *);
	240	void rose_stop_heartbeat(struct sock *);
	241	void rose_stop_timer(struct sock *);
	242	void rose_stop_idletimer(struct sock *);
1da177e4 LT	243
1da177e4 LT	244	/* sysctl_net_rose.c */
54df3b96 JP	245	void rose_register_sysctl(void);
54df3b96 JP	246	void rose_unregister_sysctl(void);
1da177e4 LT	247
1da177e4 LT	248	#endif