#include <linux/x25.h>
#include <linux/slab.h>
#include <net/sock.h>

Data Structures
struct	x25_route

struct	x25_neigh

struct	x25_sock

struct	x25_forward

struct	x25_skb_cb

Macros
#define	X25_ADDR_LEN 16

#define	X25_MAX_L2_LEN 18 /* 802.2 LLC */

#define	X25_STD_MIN_LEN 3

#define	X25_EXT_MIN_LEN 4

#define	X25_GFI_SEQ_MASK 0x30

#define	X25_GFI_STDSEQ 0x10

#define	X25_GFI_EXTSEQ 0x20

#define	X25_Q_BIT 0x80

#define	X25_D_BIT 0x40

#define	X25_STD_M_BIT 0x10

#define	X25_EXT_M_BIT 0x01

#define	X25_CALL_REQUEST 0x0B

#define	X25_CALL_ACCEPTED 0x0F

#define	X25_CLEAR_REQUEST 0x13

#define	X25_CLEAR_CONFIRMATION 0x17

#define	X25_DATA 0x00

#define	X25_INTERRUPT 0x23

#define	X25_INTERRUPT_CONFIRMATION 0x27

#define	X25_RR 0x01

#define	X25_RNR 0x05

#define	X25_REJ 0x09

#define	X25_RESET_REQUEST 0x1B

#define	X25_RESET_CONFIRMATION 0x1F

#define	X25_REGISTRATION_REQUEST 0xF3

#define	X25_REGISTRATION_CONFIRMATION 0xF7

#define	X25_RESTART_REQUEST 0xFB

#define	X25_RESTART_CONFIRMATION 0xFF

#define	X25_DIAGNOSTIC 0xF1

#define	X25_ILLEGAL 0xFD

#define	X25_COND_ACK_PENDING 0x01

#define	X25_COND_OWN_RX_BUSY 0x02

#define	X25_COND_PEER_RX_BUSY 0x04

#define	X25_DEFAULT_T20 (180 * HZ) /* Default T20 value */

#define	X25_DEFAULT_T21 (200 * HZ) /* Default T21 value */

#define	X25_DEFAULT_T22 (180 * HZ) /* Default T22 value */

#define	X25_DEFAULT_T23 (180 * HZ) /* Default T23 value */

#define	X25_DEFAULT_T2 (3 * HZ) /* Default ack holdback value */

#define	X25_DEFAULT_WINDOW_SIZE 2 /* Default Window Size */

#define	X25_DEFAULT_PACKET_SIZE X25_PS128 /* Default Packet Size */

#define	X25_DEFAULT_THROUGHPUT 0x0A /* Deafult Throughput */

#define	X25_DEFAULT_REVERSE 0x00 /* Default Reverse Charging */

#define	X25_SMODULUS 8

#define	X25_EMODULUS 128

#define	X25_FAC_CLASS_MASK 0xC0

#define	X25_FAC_CLASS_A 0x00

#define	X25_FAC_CLASS_B 0x40

#define	X25_FAC_CLASS_C 0x80

#define	X25_FAC_CLASS_D 0xC0

#define	X25_FAC_REVERSE 0x01 /* also fast select */

#define	X25_FAC_THROUGHPUT 0x02

#define	X25_FAC_PACKET_SIZE 0x42

#define	X25_FAC_WINDOW_SIZE 0x43

#define	X25_MAX_FAC_LEN 60

#define	X25_MAX_CUD_LEN 128

#define	X25_FAC_CALLING_AE 0xCB

#define	X25_FAC_CALLED_AE 0xC9

#define	X25_MARKER 0x00

#define	X25_DTE_SERVICES 0x0F

#define	X25_MAX_AE_LEN 40 /* Max num of semi-octets in AE - OSI Nw */

#define	X25_MAX_DTE_FACIL_LEN 21 /* Max length of DTE facility params */

#define	X25_Q_BIT_FLAG 0

#define	X25_INTERRUPT_FLAG 1

#define	X25_ACCPT_APPRV_FLAG 2

#define	X25_SKB_CB(s) ((struct x25_skb_cb *) ((s)->cb))

Enumerations
enum	{ X25_STATE_0, X25_STATE_1, X25_STATE_2, X25_STATE_3, X25_STATE_4 }

enum	{ X25_LINK_STATE_0, X25_LINK_STATE_1, X25_LINK_STATE_2, X25_LINK_STATE_3 }

Functions
int	x25_parse_address_block (struct sk_buff skb, struct x25_address called_addr, struct x25_address *calling_addr)

int	x25_addr_ntoa (unsigned char , struct x25_address , struct x25_address *)

int	x25_addr_aton (unsigned char , struct x25_address , struct x25_address *)

struct sock *	x25_find_socket (unsigned int, struct x25_neigh *)

void	x25_destroy_socket_from_timer (struct sock *)

int	x25_rx_call_request (struct sk_buff , struct x25_neigh , unsigned int)

void	x25_kill_by_neigh (struct x25_neigh *)

void	x25_send_frame (struct sk_buff , struct x25_neigh )

int	x25_lapb_receive_frame (struct sk_buff , struct net_device , struct packet_type , struct net_device )

void	x25_establish_link (struct x25_neigh *)

void	x25_terminate_link (struct x25_neigh *)

int	x25_parse_facilities (struct sk_buff , struct x25_facilities , struct x25_dte_facilities , unsigned long )

int	x25_create_facilities (unsigned char , struct x25_facilities , struct x25_dte_facilities *, unsigned long)

int	x25_negotiate_facilities (struct sk_buff , struct sock , struct x25_facilities , struct x25_dte_facilities )

void	x25_limit_facilities (struct x25_facilities , struct x25_neigh )

void	x25_clear_forward_by_lci (unsigned int lci)

void	x25_clear_forward_by_dev (struct net_device *)

int	x25_forward_data (int, struct x25_neigh , struct sk_buff )

int	x25_forward_call (struct x25_address , struct x25_neigh , struct sk_buff *, int)

int	x25_process_rx_frame (struct sock , struct sk_buff )

int	x25_backlog_rcv (struct sock , struct sk_buff )

void	x25_link_control (struct sk_buff , struct x25_neigh , unsigned short)

void	x25_link_device_up (struct net_device *)

void	x25_link_device_down (struct net_device *)

void	x25_link_established (struct x25_neigh *)

void	x25_link_terminated (struct x25_neigh *)

void	x25_transmit_clear_request (struct x25_neigh *, unsigned int, unsigned char)

void	x25_transmit_link (struct sk_buff , struct x25_neigh )

int	x25_subscr_ioctl (unsigned int, void __user *)

struct x25_neigh *	x25_get_neigh (struct net_device *)

void	x25_link_free (void)

int	x25_output (struct sock , struct sk_buff )

void	x25_kick (struct sock *)

void	x25_enquiry_response (struct sock *)

struct x25_route *	x25_get_route (struct x25_address *addr)

struct net_device *	x25_dev_get (char *)

void	x25_route_device_down (struct net_device *dev)

int	x25_route_ioctl (unsigned int, void __user *)

void	x25_route_free (void)

void	x25_clear_queues (struct sock *)

void	x25_frames_acked (struct sock *, unsigned short)

void	x25_requeue_frames (struct sock *)

int	x25_validate_nr (struct sock *, unsigned short)

void	x25_write_internal (struct sock *, int)

int	x25_decode (struct sock , struct sk_buff , int , int , int , int , int *)

void	x25_disconnect (struct sock *, int, unsigned char, unsigned char)

void	x25_init_timers (struct sock *sk)

void	x25_start_heartbeat (struct sock *)

void	x25_start_t2timer (struct sock *)

void	x25_start_t21timer (struct sock *)

void	x25_start_t22timer (struct sock *)

void	x25_start_t23timer (struct sock *)

void	x25_stop_heartbeat (struct sock *)

void	x25_stop_timer (struct sock *)

unsigned long	x25_display_timer (struct sock *)

void	x25_check_rbuf (struct sock *)

int	x25_proc_init (void)

void	x25_proc_exit (void)

Macro Definition Documentation

#define X25_ACCPT_APPRV_FLAG 2

Definition at line 117 of file x25.h.

#define X25_ADDR_LEN 16

Definition at line 16 of file x25.h.

#define X25_CALL_ACCEPTED 0x0F

Definition at line 33 of file x25.h.

#define X25_CALL_REQUEST 0x0B

Definition at line 32 of file x25.h.

#define X25_CLEAR_CONFIRMATION 0x17

Definition at line 35 of file x25.h.

#define X25_CLEAR_REQUEST 0x13

Definition at line 34 of file x25.h.

#define X25_COND_ACK_PENDING 0x01

Definition at line 53 of file x25.h.

#define X25_COND_OWN_RX_BUSY 0x02

Definition at line 54 of file x25.h.

#define X25_COND_PEER_RX_BUSY 0x04

Definition at line 55 of file x25.h.

#define X25_D_BIT 0x40

Definition at line 28 of file x25.h.

#define X25_DATA 0x00

Definition at line 36 of file x25.h.

#define X25_DEFAULT_PACKET_SIZE X25_PS128 /* Default Packet Size */

Definition at line 80 of file x25.h.

#define X25_DEFAULT_REVERSE 0x00 /* Default Reverse Charging */

Definition at line 82 of file x25.h.

#define X25_DEFAULT_T2 (3 * HZ) /* Default ack holdback value */

Definition at line 77 of file x25.h.

#define X25_DEFAULT_T20 (180 * HZ) /* Default T20 value */

Definition at line 73 of file x25.h.

#define X25_DEFAULT_T21 (200 * HZ) /* Default T21 value */

Definition at line 74 of file x25.h.

#define X25_DEFAULT_T22 (180 * HZ) /* Default T22 value */

Definition at line 75 of file x25.h.

#define X25_DEFAULT_T23 (180 * HZ) /* Default T23 value */

Definition at line 76 of file x25.h.

#define X25_DEFAULT_THROUGHPUT 0x0A /* Deafult Throughput */

Definition at line 81 of file x25.h.

#define X25_DEFAULT_WINDOW_SIZE 2 /* Default Window Size */

Definition at line 79 of file x25.h.

#define X25_DIAGNOSTIC 0xF1

Definition at line 48 of file x25.h.

#define X25_DTE_SERVICES 0x0F

Definition at line 110 of file x25.h.

#define X25_EMODULUS 128

Definition at line 85 of file x25.h.

#define X25_EXT_M_BIT 0x01

Definition at line 30 of file x25.h.

#define X25_EXT_MIN_LEN 4

Definition at line 21 of file x25.h.

#define X25_FAC_CALLED_AE 0xC9

Definition at line 107 of file x25.h.

#define X25_FAC_CALLING_AE 0xCB

Definition at line 106 of file x25.h.

#define X25_FAC_CLASS_A 0x00

Definition at line 93 of file x25.h.

#define X25_FAC_CLASS_B 0x40

Definition at line 94 of file x25.h.

#define X25_FAC_CLASS_C 0x80

Definition at line 95 of file x25.h.

#define X25_FAC_CLASS_D 0xC0

Definition at line 96 of file x25.h.

#define X25_FAC_CLASS_MASK 0xC0

Definition at line 91 of file x25.h.

#define X25_FAC_PACKET_SIZE 0x42

Definition at line 100 of file x25.h.

#define X25_FAC_REVERSE 0x01 /* also fast select */

Definition at line 98 of file x25.h.

#define X25_FAC_THROUGHPUT 0x02

Definition at line 99 of file x25.h.

#define X25_FAC_WINDOW_SIZE 0x43

Definition at line 101 of file x25.h.

#define X25_GFI_EXTSEQ 0x20

Definition at line 25 of file x25.h.

#define X25_GFI_SEQ_MASK 0x30

Definition at line 23 of file x25.h.

#define X25_GFI_STDSEQ 0x10

Definition at line 24 of file x25.h.

#define X25_ILLEGAL 0xFD

Definition at line 49 of file x25.h.

#define X25_INTERRUPT 0x23

Definition at line 37 of file x25.h.

#define X25_INTERRUPT_CONFIRMATION 0x27

Definition at line 38 of file x25.h.

#define X25_INTERRUPT_FLAG 1

Definition at line 116 of file x25.h.

#define X25_MARKER 0x00

Definition at line 109 of file x25.h.

#define X25_MAX_AE_LEN 40 /* Max num of semi-octets in AE - OSI Nw */

Definition at line 111 of file x25.h.

#define X25_MAX_CUD_LEN 128

Definition at line 104 of file x25.h.

#define X25_MAX_DTE_FACIL_LEN 21 /* Max length of DTE facility params */

Definition at line 112 of file x25.h.

#define X25_MAX_FAC_LEN 60

Definition at line 103 of file x25.h.

#define X25_MAX_L2_LEN 18 /* 802.2 LLC */

Definition at line 18 of file x25.h.

#define X25_Q_BIT 0x80

Definition at line 27 of file x25.h.

#define X25_Q_BIT_FLAG 0

Definition at line 115 of file x25.h.

#define X25_REGISTRATION_CONFIRMATION 0xF7

Definition at line 45 of file x25.h.

#define X25_REGISTRATION_REQUEST 0xF3

Definition at line 44 of file x25.h.

#define X25_REJ 0x09

Definition at line 41 of file x25.h.

#define X25_RESET_CONFIRMATION 0x1F

Definition at line 43 of file x25.h.

#define X25_RESET_REQUEST 0x1B

Definition at line 42 of file x25.h.

#define X25_RESTART_CONFIRMATION 0xFF

Definition at line 47 of file x25.h.

#define X25_RESTART_REQUEST 0xFB

Definition at line 46 of file x25.h.

#define X25_RNR 0x05

Definition at line 40 of file x25.h.

#define X25_RR 0x01

Definition at line 39 of file x25.h.

#define X25_SKB_CB ( s ) ((struct x25_skb_cb *) ((s)->cb))

Definition at line 310 of file x25.h.

#define X25_SMODULUS 8

Definition at line 84 of file x25.h.

#define X25_STD_M_BIT 0x10

Definition at line 29 of file x25.h.

#define X25_STD_MIN_LEN 3

Definition at line 20 of file x25.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

X25_STATE_0
X25_STATE_1
X25_STATE_2
X25_STATE_3
X25_STATE_4

Definition at line 58 of file x25.h.

anonymous enum

Enumerator:

X25_LINK_STATE_0
X25_LINK_STATE_1
X25_LINK_STATE_2
X25_LINK_STATE_3

Definition at line 66 of file x25.h.

Function Documentation

int x25_addr_aton	(	unsigned char *	,
		struct x25_address *	,
		struct x25_address *
	)

Definition at line 157 of file af_x25.c.

int x25_addr_ntoa	(	unsigned char *	,
		struct x25_address *	,
		struct x25_address *
	)

Definition at line 120 of file af_x25.c.

int x25_backlog_rcv	(	struct sock *	,
		struct sk_buff *
	)

Definition at line 409 of file x25_in.c.

void x25_check_rbuf ( struct sock * )

Definition at line 375 of file x25_subr.c.

void x25_clear_forward_by_dev ( struct net_device * )

Definition at line 152 of file x25_forward.c.

void x25_clear_forward_by_lci ( unsigned int lci )

Definition at line 134 of file x25_forward.c.

void x25_clear_queues ( struct sock * )

Definition at line 37 of file x25_subr.c.

int x25_create_facilities	(	unsigned char *	,
		struct x25_facilities *	,
		struct x25_dte_facilities *	,
		unsigned	long
	)

Definition at line 187 of file x25_facilities.c.

int x25_decode	(	struct sock *	,
		struct sk_buff *	,
		int *	,
		int *	,
		int *	,
		int *	,
		int *
	)

Definition at line 268 of file x25_subr.c.

void x25_destroy_socket_from_timer ( struct sock * )

Definition at line 426 of file af_x25.c.

struct net_device* x25_dev_get ( char * )

read

Definition at line 131 of file x25_route.c.

void x25_disconnect	(	struct sock *	,
		int	,
		unsigned	char,
		unsigned	char
	)

Definition at line 347 of file x25_subr.c.

unsigned long x25_display_timer ( struct sock * )

Definition at line 86 of file x25_timer.c.

void x25_enquiry_response ( struct sock * )

Definition at line 218 of file x25_out.c.

void x25_establish_link ( struct x25_neigh * )

Definition at line 149 of file x25_dev.c.

struct sock* x25_find_socket	(	unsigned	int,
		struct x25_neigh *
	)

read

Definition at line 338 of file af_x25.c.

int x25_forward_call	(	struct x25_address *	,
		struct x25_neigh *	,
		struct sk_buff *	,
		int
	)

Definition at line 19 of file x25_forward.c.

int x25_forward_data	(	int	,
		struct x25_neigh *	,
		struct sk_buff *
	)

Definition at line 94 of file x25_forward.c.

void x25_frames_acked	(	struct sock *	,
		unsigned	short
	)

Definition at line 54 of file x25_subr.c.

struct x25_neigh* x25_get_neigh ( struct net_device * )

read

Definition at line 317 of file x25_link.c.

struct x25_route* x25_get_route ( struct x25_address * addr )

read

x25_get_route - Find a route given an X.25 address. - address to find a route for

Find a route given an X.25 address.

Definition at line 154 of file x25_route.c.

void x25_init_timers ( struct sock * sk )

Definition at line 32 of file x25_timer.c.

void x25_kick ( struct sock * )

Definition at line 141 of file x25_out.c.

void x25_kill_by_neigh ( struct x25_neigh * )

Definition at line 1782 of file af_x25.c.

int x25_lapb_receive_frame	(	struct sk_buff *	,
		struct net_device *	,
		struct packet_type *	,
		struct net_device *
	)

Definition at line 97 of file x25_dev.c.

void x25_limit_facilities	(	struct x25_facilities *	,
		struct x25_neigh *
	)

Definition at line 334 of file x25_facilities.c.

void x25_link_control	(	struct sk_buff *	,
		struct x25_neigh *	,
		unsigned	short
	)

Definition at line 72 of file x25_link.c.

void x25_link_device_down ( struct net_device * )

Definition at line 295 of file x25_link.c.

void x25_link_device_up ( struct net_device * )

Definition at line 245 of file x25_link.c.

void x25_link_established ( struct x25_neigh * )

Definition at line 216 of file x25_link.c.

void x25_link_free ( void )

Definition at line 393 of file x25_link.c.

void x25_link_terminated ( struct x25_neigh * )

Definition at line 235 of file x25_link.c.

int x25_negotiate_facilities	(	struct sk_buff *	,
		struct sock *	,
		struct x25_facilities *	,
		struct x25_dte_facilities *
	)

Definition at line 264 of file x25_facilities.c.

int x25_output	(	struct sock *	,
		struct sk_buff *
	)

Definition at line 52 of file x25_out.c.

int x25_parse_address_block	(	struct sk_buff *	skb,
		struct x25_address *	called_addr,
		struct x25_address *	calling_addr
	)

Definition at line 86 of file af_x25.c.

int x25_parse_facilities	(	struct sk_buff *	skb,
		struct x25_facilities *	facilities,
		struct x25_dte_facilities *	dte_facs,
		unsigned long *	vc_fac_mask
	)

x25_parse_facilities - Parse facilities from skb into the facilities structs

: sk_buff to parse : Regular facilities, updated as facilities are found : ITU DTE facilities, updated as DTE facilities are found : mask is updated with all facilities found

Return codes: -1 - Parsing error, caller should drop call and clean up 0 - Parse OK, this skb has no facilities >0 - Parse OK, returns the length of the facilities header

Definition at line 44 of file x25_facilities.c.

void x25_proc_exit ( void )

Definition at line 264 of file x25_proc.c.

int x25_proc_init ( void )

Definition at line 259 of file x25_proc.c.

int x25_process_rx_frame	(	struct sock *	,
		struct sk_buff *
	)

Definition at line 379 of file x25_in.c.

void x25_requeue_frames ( struct sock * )

Definition at line 71 of file x25_subr.c.

void x25_route_device_down ( struct net_device * dev )

Definition at line 109 of file x25_route.c.

void x25_route_free ( void )

Definition at line 215 of file x25_route.c.

int x25_route_ioctl	(	unsigned	int,
		void __user *
	)

Definition at line 182 of file x25_route.c.

int x25_rx_call_request	(	struct sk_buff *	,
		struct x25_neigh *	,
		unsigned	int
	)

Definition at line 921 of file af_x25.c.

void x25_send_frame	(	struct sk_buff *	,
		struct x25_neigh *
	)

Definition at line 204 of file x25_dev.c.

void x25_start_heartbeat ( struct sock * )

Definition at line 43 of file x25_timer.c.

void x25_start_t21timer ( struct sock * )

Definition at line 60 of file x25_timer.c.

void x25_start_t22timer ( struct sock * )

Definition at line 67 of file x25_timer.c.

void x25_start_t23timer ( struct sock * )

Definition at line 74 of file x25_timer.c.

void x25_start_t2timer ( struct sock * )

Definition at line 53 of file x25_timer.c.

void x25_stop_heartbeat ( struct sock * )

Definition at line 48 of file x25_timer.c.

void x25_stop_timer ( struct sock * )

Definition at line 81 of file x25_timer.c.

int x25_subscr_ioctl	(	unsigned	int,
		void __user *
	)

Definition at line 341 of file x25_link.c.

void x25_terminate_link ( struct x25_neigh * )

Definition at line 178 of file x25_dev.c.

void x25_transmit_clear_request	(	struct x25_neigh *	,
		unsigned	int,
		unsigned	char
	)

Definition at line 168 of file x25_link.c.

void x25_transmit_link	(	struct sk_buff *	,
		struct x25_neigh *
	)

Definition at line 195 of file x25_link.c.

int x25_validate_nr	(	struct sock *	,
		unsigned	short
	)

Definition at line 93 of file x25_subr.c.

void x25_write_internal	(	struct sock *	,
		int
	)

Definition at line 112 of file x25_subr.c.

Variable Documentation

int sysctl_x25_ack_holdback_timeout

Definition at line 67 of file af_x25.c.

int sysctl_x25_call_request_timeout

Definition at line 64 of file af_x25.c.

int sysctl_x25_clear_request_timeout

Definition at line 66 of file af_x25.c.

int sysctl_x25_forward

Definition at line 68 of file af_x25.c.

int sysctl_x25_reset_request_timeout

Definition at line 65 of file af_x25.c.

int sysctl_x25_restart_request_timeout

Definition at line 63 of file af_x25.c.

struct list_head x25_forward_list

rwlock_t x25_forward_list_lock

struct hlist_head x25_list

rwlock_t x25_list_lock

struct list_head x25_neigh_list

rwlock_t x25_neigh_list_lock

struct list_head x25_route_list

rwlock_t x25_route_list_lock

Variables
int	sysctl_x25_restart_request_timeout

int	sysctl_x25_call_request_timeout

int	sysctl_x25_reset_request_timeout

int	sysctl_x25_clear_request_timeout

int	sysctl_x25_ack_holdback_timeout

int	sysctl_x25_forward

struct hlist_head	x25_list

rwlock_t	x25_list_lock

struct list_head	x25_route_list

rwlock_t	x25_route_list_lock

struct list_head	x25_forward_list

rwlock_t	x25_forward_list_lock

struct list_head	x25_neigh_list

rwlock_t	x25_neigh_list_lock

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation