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/*
* Declarations of AX.25 type objects.
*
* Alan Cox (GW4PTS) 10/11/93
*/
#ifndef _AX25_H
#define _AX25_H
#include <linux/ax25.h>
#define PR_SLOWHZ 10 /* Run timing at 1/10 second - gives us better resolution for 56kbit links */
#define AX25_T1CLAMPLO (1 * PR_SLOWHZ) /* If defined, clamp at 1 second **/
#define AX25_T1CLAMPHI (30 * PR_SLOWHZ) /* If defined, clamp at 30 seconds **/
#define AX25_BROKEN_NETMAC
#define AX25_BPQ_HEADER_LEN 16
#define AX25_KISS_HEADER_LEN 1
#define AX25_HEADER_LEN 17
#define AX25_ADDR_LEN 7
#define AX25_DIGI_HEADER_LEN (AX25_MAX_DIGIS * AX25_ADDR_LEN)
#define AX25_MAX_HEADER_LEN (AX25_HEADER_LEN + AX25_DIGI_HEADER_LEN)
#define AX25_P_IP 0xCC
#define AX25_P_ARP 0xCD
#define AX25_P_TEXT 0xF0
#define AX25_P_NETROM 0xCF
#define AX25_P_SEGMENT 0x08
#define SEG_REM 0x7F
#define SEG_FIRST 0x80
#define LAPB_UI 0x03
#define LAPB_C 0x80
#define LAPB_E 0x01
#define SSSID_SPARE 0x60 /* Unused bits in SSID for standard AX.25 */
#define ESSID_SPARE 0x20 /* Unused bits in SSID for extended AX.25 */
#define DAMA_FLAG 0x40 /* Well, it is *NOT* unused! (dl1bke 951121 */
#define AX25_REPEATED 0x80
#define ACK_PENDING_CONDITION 0x01
#define REJECT_CONDITION 0x02
#define PEER_RX_BUSY_CONDITION 0x04
#define OWN_RX_BUSY_CONDITION 0x08
#ifndef _LINUX_NETDEVICE_H
#include <linux/netdevice.h>
#endif
/*
* These headers are taken from the KA9Q package by Phil Karn. These specific
* files have been placed under the GPL (not the whole package) by Phil.
*
*
* Copyright 1991 Phil Karn, KA9Q
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 dated June, 1991.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave., Cambridge, MA 02139, USA.
*/
/* Upper sub-layer (LAPB) definitions */
/* Control field templates */
#define I 0x00 /* Information frames */
#define S 0x01 /* Supervisory frames */
#define RR 0x01 /* Receiver ready */
#define RNR 0x05 /* Receiver not ready */
#define REJ 0x09 /* Reject */
#define U 0x03 /* Unnumbered frames */
#define SABM 0x2f /* Set Asynchronous Balanced Mode */
#define SABME 0x6f /* Set Asynchronous Balanced Mode Extended */
#define DISC 0x43 /* Disconnect */
#define DM 0x0f /* Disconnected mode */
#define UA 0x63 /* Unnumbered acknowledge */
#define FRMR 0x87 /* Frame reject */
#define UI 0x03 /* Unnumbered information */
#define PF 0x10 /* Poll/final bit for standard AX.25 */
#define EPF 0x01 /* Poll/final bit for extended AX.25 */
#define ILLEGAL 0x100 /* Impossible to be a real frame type */
#define POLLOFF 0
#define POLLON 1
/* AX25 L2 C-bit */
#define C_COMMAND 1 /* C_ otherwise it clashes with the de600 defines (sigh)) */
#define C_RESPONSE 2
/* Define Link State constants. */
#define AX25_STATE_0 0
#define AX25_STATE_1 1
#define AX25_STATE_2 2
#define AX25_STATE_3 3
#define AX25_STATE_4 4
#define MODULUS 8 /* Standard AX.25 modulus */
#define EMODULUS 128 /* Extended AX.25 modulus */
#define AX25_DEF_IPDEFMODE 'D'
#define AX25_DEF_AXDEFMODE 8
#define AX25_DEF_NETROM 1
#define AX25_DEF_TEXT 1
#define AX25_DEF_BACKOFF 'E'
#define AX25_DEF_CONMODE 1
#define AX25_DEF_WINDOW 2
#define AX25_DEF_EWINDOW 32
#define AX25_DEF_T1 10
#define AX25_DEF_T2 3
#define AX25_DEF_T3 300
#define AX25_DEF_N2 10
#define AX25_DEF_DIGI (AX25_DIGI_INBAND|AX25_DIGI_XBAND)
typedef struct ax25_uid_assoc {
struct ax25_uid_assoc *next;
uid_t uid;
ax25_address call;
} ax25_uid_assoc;
typedef struct {
ax25_address calls[AX25_MAX_DIGIS];
unsigned char repeated[AX25_MAX_DIGIS];
unsigned char ndigi;
char lastrepeat;
} ax25_digi;
typedef struct ax25_cb {
struct ax25_cb *next;
ax25_address source_addr, dest_addr;
struct device *device;
unsigned char dama_slave; /* dl1bke 951121 */
unsigned char state, modulus, hdrincl;
unsigned short vs, vr, va;
unsigned char condition, backoff;
unsigned char n2, n2count;
unsigned short t1, t2, t3, rtt;
unsigned short t1timer, t2timer, t3timer;
unsigned short fragno, fraglen;
ax25_digi *digipeat;
struct sk_buff_head write_queue;
struct sk_buff_head reseq_queue;
struct sk_buff_head ack_queue;
struct sk_buff_head frag_queue;
unsigned char window;
struct timer_list timer;
struct sock *sk; /* Backlink to socket */
} ax25_cb;
/* af_ax25.c */
extern ax25_address null_ax25_address;
extern char *ax2asc(ax25_address *);
extern int ax25cmp(ax25_address *, ax25_address *);
extern int ax25_send_frame(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *, struct device *);
extern void ax25_destroy_socket(ax25_cb *);
extern struct device *ax25rtr_get_dev(ax25_address *);
extern int ax25_encapsulate(struct sk_buff *, struct device *, unsigned short,
void *, void *, unsigned int);
extern int ax25_rebuild_header(unsigned char *, struct device *, unsigned long, struct sk_buff *);
extern ax25_uid_assoc *ax25_uid_list;
extern int ax25_uid_policy;
extern ax25_address *ax25_findbyuid(uid_t);
extern void ax25_queue_xmit(struct sk_buff *, struct device *, int);
extern int ax25_dev_is_dama_slave(struct device *); /* dl1bke 951121 */
#include <net/ax25call.h>
/* ax25_in.c */
extern int ax25_process_rx_frame(ax25_cb *, struct sk_buff *, int, int);
/* ax25_out.c */
extern void ax25_output(ax25_cb *, struct sk_buff *);
extern void ax25_kick(ax25_cb *);
extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int);
extern void ax25_nr_error_recovery(ax25_cb *);
extern void ax25_establish_data_link(ax25_cb *);
extern void ax25_transmit_enquiry(ax25_cb *);
extern void ax25_enquiry_response(ax25_cb *);
extern void ax25_timeout_response(ax25_cb *);
extern void ax25_check_iframes_acked(ax25_cb *, unsigned short);
extern void ax25_check_need_response(ax25_cb *, int, int);
extern void dama_enquiry_response(ax25_cb *); /* dl1bke 960114 */
extern void dama_check_need_response(ax25_cb *, int, int); /* dl1bke 960114 */
extern void dama_establish_data_link(ax25_cb *);
/* ax25_route.c */
extern void ax25_rt_rx_frame(ax25_address *, struct device *, ax25_digi *);
extern int ax25_rt_get_info(char *, char **, off_t, int, int);
extern int ax25_cs_get_info(char *, char **, off_t, int, int);
extern int ax25_rt_autobind(ax25_cb *, ax25_address *);
extern void ax25_rt_build_path(ax25_cb *, ax25_address *);
extern void ax25_dg_build_path(struct sk_buff *, ax25_address *, struct device *);
extern void ax25_rt_device_down(struct device *);
extern int ax25_rt_ioctl(unsigned int, void *);
extern void ax25_ip_mode_set(ax25_address *, struct device *, char);
extern char ax25_ip_mode_get(ax25_address *, struct device *);
extern unsigned short ax25_dev_get_value(struct device *, int);
extern void ax25_dev_device_up(struct device *);
extern void ax25_dev_device_down(struct device *);
extern int ax25_dev_ioctl(unsigned int, void *);
extern int ax25_bpq_get_info(char *, char **, off_t, int, int);
extern ax25_address *ax25_bpq_get_addr(struct device *);
extern int ax25_bpq_ioctl(unsigned int, void *);
/* ax25_subr.c */
extern void ax25_clear_queues(ax25_cb *);
extern void ax25_frames_acked(ax25_cb *, unsigned short);
extern void ax25_requeue_frames(ax25_cb *);
extern int ax25_validate_nr(ax25_cb *, unsigned short);
extern int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *);
extern void ax25_send_control(ax25_cb *, int, int, int);
extern unsigned short ax25_calculate_t1(ax25_cb *);
extern void ax25_calculate_rtt(ax25_cb *);
extern unsigned char *ax25_parse_addr(unsigned char *, int, ax25_address *,
ax25_address *, ax25_digi *, int *, int *); /* dl1bke 951121 */
extern int build_ax25_addr(unsigned char *, ax25_address *, ax25_address *,
ax25_digi *, int, int);
extern int size_ax25_addr(ax25_digi *);
extern void ax25_digi_invert(ax25_digi *, ax25_digi *);
extern void ax25_return_dm(struct device *, ax25_address *, ax25_address *, ax25_digi *);
extern void ax25_dama_on(ax25_cb *); /* dl1bke 951121 */
extern void ax25_dama_off(ax25_cb *); /* dl1bke 951121 */
/* ax25_timer */
extern void ax25_set_timer(ax25_cb *);
extern void ax25_t1_timeout(ax25_cb *);
/* ... */
extern ax25_cb * volatile ax25_list;
#endif
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