mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 06:04:14 +08:00
e0bccd315d
Define some constant offsets for CALL_REQUEST based on the description at <http://www.techfest.com/networking/wan/x25plp.htm> and the definition of ROSE as using 10-digit (5-byte) addresses. Use them consistently. Validate all implicit and explicit facilities lengths. Validate the address length byte rather than either trusting or assuming its value. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
242 lines
7.9 KiB
C
242 lines
7.9 KiB
C
/*
|
|
* 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;
|
|
extern int rosecmp(rose_address *, rose_address *);
|
|
extern int rosecmpm(rose_address *, rose_address *, unsigned short);
|
|
extern char *rose2asc(char *buf, const rose_address *);
|
|
extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
|
|
extern void rose_kill_by_neigh(struct rose_neigh *);
|
|
extern unsigned int rose_new_lci(struct rose_neigh *);
|
|
extern int rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int);
|
|
extern void rose_destroy_socket(struct sock *);
|
|
|
|
/* rose_dev.c */
|
|
extern void rose_setup(struct net_device *);
|
|
|
|
/* rose_in.c */
|
|
extern int rose_process_rx_frame(struct sock *, struct sk_buff *);
|
|
|
|
/* rose_link.c */
|
|
extern void rose_start_ftimer(struct rose_neigh *);
|
|
extern void rose_stop_ftimer(struct rose_neigh *);
|
|
extern void rose_stop_t0timer(struct rose_neigh *);
|
|
extern int rose_ftimer_running(struct rose_neigh *);
|
|
extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
|
|
extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char);
|
|
extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
|
|
|
|
/* rose_loopback.c */
|
|
extern void rose_loopback_init(void);
|
|
extern void rose_loopback_clear(void);
|
|
extern int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
|
|
|
|
/* rose_out.c */
|
|
extern void rose_kick(struct sock *);
|
|
extern 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;
|
|
|
|
extern void rose_add_loopback_neigh(void);
|
|
extern int __must_check rose_add_loopback_node(rose_address *);
|
|
extern void rose_del_loopback_node(rose_address *);
|
|
extern void rose_rt_device_down(struct net_device *);
|
|
extern void rose_link_device_down(struct net_device *);
|
|
extern struct net_device *rose_dev_first(void);
|
|
extern struct net_device *rose_dev_get(rose_address *);
|
|
extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
|
|
extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *, int);
|
|
extern int rose_rt_ioctl(unsigned int, void __user *);
|
|
extern void rose_link_failed(ax25_cb *, int);
|
|
extern int rose_route_frame(struct sk_buff *, ax25_cb *);
|
|
extern void rose_rt_free(void);
|
|
|
|
/* rose_subr.c */
|
|
extern void rose_clear_queues(struct sock *);
|
|
extern void rose_frames_acked(struct sock *, unsigned short);
|
|
extern void rose_requeue_frames(struct sock *);
|
|
extern int rose_validate_nr(struct sock *, unsigned short);
|
|
extern void rose_write_internal(struct sock *, int);
|
|
extern int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
|
|
extern int rose_parse_facilities(unsigned char *, unsigned int, struct rose_facilities_struct *);
|
|
extern void rose_disconnect(struct sock *, int, int, int);
|
|
|
|
/* rose_timer.c */
|
|
extern void rose_start_heartbeat(struct sock *);
|
|
extern void rose_start_t1timer(struct sock *);
|
|
extern void rose_start_t2timer(struct sock *);
|
|
extern void rose_start_t3timer(struct sock *);
|
|
extern void rose_start_hbtimer(struct sock *);
|
|
extern void rose_start_idletimer(struct sock *);
|
|
extern void rose_stop_heartbeat(struct sock *);
|
|
extern void rose_stop_timer(struct sock *);
|
|
extern void rose_stop_idletimer(struct sock *);
|
|
|
|
/* sysctl_net_rose.c */
|
|
extern void rose_register_sysctl(void);
|
|
extern void rose_unregister_sysctl(void);
|
|
|
|
#endif
|