diff options
Diffstat (limited to 'i386/i386at/gpl/linux/include/net/ax25.h')
| -rw-r--r-- | i386/i386at/gpl/linux/include/net/ax25.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/i386/i386at/gpl/linux/include/net/ax25.h b/i386/i386at/gpl/linux/include/net/ax25.h new file mode 100644 index 00000000..45967cb1 --- /dev/null +++ b/i386/i386at/gpl/linux/include/net/ax25.h @@ -0,0 +1,246 @@ +/* + * 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 |