patch-2.0.35 linux/include/net/ax25.h

• Lines: 351
• Date: Mon Jul 13 13:47:39 1998
• Orig file: v2.0.34/linux/include/net/ax25.h
• Orig date: Wed Oct 15 15:23:06 1997

diff -u --recursive --new-file v2.0.34/linux/include/net/ax25.h linux/include/net/ax25.h
@@ -8,44 +8,43 @@
 #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_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_T1CLAMPLO  		(1 * AX25_SLOWHZ)	/* If defined, clamp at 1 second **/
+#define	AX25_T1CLAMPHI 			(30 * AX25_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_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	0x20	/* 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
+#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)
+
+/* AX.25 Protocol IDs */
+#define AX25_P_ROSE			0x01
+#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
+
+/* AX.25 Segment control values */
+#define	AX25_SEG_REM			0x7F
+#define	AX25_SEG_FIRST			0x80
+
+#define AX25_CBIT			0x80	/* Command/Response bit */
+#define AX25_EBIT			0x01	/* HDLC Address Extension bit */
+#define AX25_HBIT			0x80	/* Has been repeated bit */
+
+#define AX25_SSSID_SPARE		0x60	/* Unused bits in SSID for standard AX.25 */
+#define AX25_ESSID_SPARE		0x20	/* Unused bits in SSID for extended AX.25 */
+#define AX25_DAMA_FLAG			0x20	/* Well, it is *NOT* unused! (dl1bke 951121 */
+
+#define	AX25_COND_ACK_PENDING		0x01
+#define	AX25_COND_REJECT		0x02
+#define	AX25_COND_PEER_RX_BUSY		0x04
+#define	AX25_COND_OWN_RX_BUSY		0x08
 
 #ifndef _LINUX_NETDEVICE_H
 #include <linux/netdevice.h>
@@ -75,86 +74,101 @@
 /* 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	AX25_I			0x00	/* Information frames */
+#define	AX25_S			0x01	/* Supervisory frames */
+#define	AX25_RR			0x01	/* Receiver ready */
+#define	AX25_RNR		0x05	/* Receiver not ready */
+#define	AX25_REJ		0x09	/* Reject */
+#define	AX25_U			0x03	/* Unnumbered frames */
+#define	AX25_SABM		0x2f	/* Set Asynchronous Balanced Mode */
+#define	AX25_SABME		0x6f	/* Set Asynchronous Balanced Mode Extended */
+#define	AX25_DISC		0x43	/* Disconnect */
+#define	AX25_DM			0x0f	/* Disconnected mode */
+#define	AX25_UA			0x63	/* Unnumbered acknowledge */
+#define	AX25_FRMR		0x87	/* Frame reject */
+#define	AX25_UI			0x03	/* Unnumbered information */
 
-#define ILLEGAL	0x100	/* Impossible to be a real frame type */
+#define	AX25_PF			0x10	/* Poll/final bit for standard AX.25 */
+#define	AX25_EPF		0x01	/* Poll/final bit for extended AX.25 */
 
-#define	POLLOFF		0
-#define	POLLON		1
+#define AX25_ILLEGAL		0x100	/* Impossible to be a real frame type */
 
-/* AX25 L2 C-bit */
+#define	AX25_POLLOFF		0
+#define	AX25_POLLON		1
 
-#define C_COMMAND	1	/* C_ otherwise it clashes with the de600 defines (sigh)) */
-#define C_RESPONSE	2
+/* AX25 L2 C-bit */
+#define AX25_COMMAND		1
+#define AX25_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_IDLE		20
-#define AX25_DEF_PACLEN		256
-#define AX25_DEF_IPMAXQUEUE	2		/* 1 * ax25->window */
-#define	AX25_DEF_DIGI		(AX25_DIGI_INBAND|AX25_DIGI_XBAND)
+enum { 
+	AX25_STATE_0,
+	AX25_STATE_1,
+	AX25_STATE_2,
+	AX25_STATE_3,
+	AX25_STATE_4
+};
+
+#define	AX25_MAX_DEVICES	20	/* Max No of AX.25 devices */
+
+#define AX25_MODULUS 		8	/*  Standard AX.25 modulus */
+#define	AX25_EMODULUS		128	/*  Extended AX.25 modulus */
+
+enum {
+	AX25_VALUES_IPDEFMODE,	/* 0=DG 1=VC */
+	AX25_VALUES_AXDEFMODE,	/* 0=Normal 1=Extended Seq Nos */
+	AX25_VALUES_BACKOFF,	/* 0=None 1=Linear 2=Exponential */
+	AX25_VALUES_CONMODE,	/* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */
+	AX25_VALUES_WINDOW,	/* Default window size for standard AX.25 */
+	AX25_VALUES_EWINDOW,	/* Default window size for extended AX.25 */
+	AX25_VALUES_T1,		/* Default T1 timeout value */
+	AX25_VALUES_T2,		/* Default T2 timeout value */
+	AX25_VALUES_T3,		/* Default T3 timeout value */
+	AX25_VALUES_IDLE,	/* Connected mode idle timer */
+	AX25_VALUES_N2,		/* Default N2 value */
+	AX25_VALUES_PACLEN,	/* AX.25 MTU */
+	AX25_MAX_VALUES		/* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */
+};
+
+#define	AX25_DEF_IPDEFMODE	0			/* Datagram */
+#define	AX25_DEF_AXDEFMODE	0			/* Normal */
+#define	AX25_DEF_BACKOFF	1			/* Linear backoff */
+#define	AX25_DEF_CONMODE	2			/* Connected mode allowed */
+#define	AX25_DEF_WINDOW		2			/* Window=2 */
+#define	AX25_DEF_EWINDOW	32			/* Module-128 Window=32 */
+#define	AX25_DEF_T1		(10 * AX25_SLOWHZ)	/* T1=10s */
+#define	AX25_DEF_T2		(3 * AX25_SLOWHZ)	/* T2=3s  */
+#define	AX25_DEF_T3		(300 * AX25_SLOWHZ)	/* T3=300s */
+#define	AX25_DEF_N2		10			/* N2=10 */
+#define AX25_DEF_IDLE		(0 * 60 * AX25_SLOWHZ)	/* Idle=None */
+#define AX25_DEF_PACLEN		256			/* Paclen=256 */
 
 typedef struct ax25_uid_assoc {
-	struct ax25_uid_assoc *next;
-	uid_t uid;
-	ax25_address call;
+	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_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 char		dama_slave, iamdigi;
+	unsigned char		state, modulus, pidincl;
 	unsigned short		vs, vr, va;
 	unsigned char		condition, backoff;
 	unsigned char		n2, n2count;
 	unsigned short		t1, t2, t3, idle, rtt;
 	unsigned short		t1timer, t2timer, t3timer, idletimer;
 	unsigned short		paclen;
-	unsigned short		maxqueue;
 	unsigned short		fragno, fraglen;
 	ax25_digi		*digipeat;
 	struct sk_buff_head	write_queue;
@@ -166,16 +180,30 @@
 	struct sock		*sk;		/* Backlink to socket */
 } ax25_cb;
 
+#ifndef _LINUX_SYSCTL_H
+#include <linux/sysctl.h>
+#endif
+
+struct ax25_dev {
+	char			name[20];
+	struct device		*dev;
+	struct device		*forward;
+	struct ctl_table	systable[AX25_MAX_VALUES+1];
+	int			values[AX25_MAX_VALUES];
+};
+
 /* af_ax25.c */
 extern ax25_address null_ax25_address;
 extern char *ax2asc(ax25_address *);
+extern ax25_address *asc2ax(char *);
 extern int  ax25cmp(ax25_address *, ax25_address *);
-extern int  ax25_send_frame(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *, struct device *);
+extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct device *);
+extern ax25_cb *ax25_find_cb(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 int  ax25_rebuild_header(void *, 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);
@@ -188,7 +216,7 @@
 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_output(ax25_cb *, int, 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 *);
@@ -197,27 +225,25 @@
 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 struct ax25_dev ax25_device[];
 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 *, struct device *);
-extern void ax25_dg_build_path(struct sk_buff *, ax25_address *, struct device *);
+extern ax25_digi *ax25_rt_find_path(ax25_address *, struct device *);
+extern void ax25_rt_build_path(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *);
 extern void ax25_rt_device_down(struct device *);
 extern int  ax25_rt_ioctl(unsigned int, void *);
-extern char ax25_ip_mode_get(ax25_address *, struct device *);
-extern unsigned short ax25_dev_get_value(struct device *, int);
+extern char ax25_rt_mode_get(ax25_address *, struct device *);
+extern int  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 *);
+extern int  ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *);
+extern struct device *ax25_fwd_dev(struct device *);
+extern void ax25_rt_free(void);
 
 /* ax25_subr.c */
 extern void ax25_clear_queues(ax25_cb *);
@@ -235,16 +261,32 @@
 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 int  ax25_queue_length(ax25_cb *, struct sk_buff *); /* dl1bke 960327 */
 extern void ax25_dama_on(ax25_cb *);	/* dl1bke 951121 */
 extern void ax25_dama_off(ax25_cb *);	/* dl1bke 951121 */
+extern void ax25_disconnect(ax25_cb *, int);
 
-/* ax25_timer */
+/* ax25_timer.c */
 extern void ax25_set_timer(ax25_cb *);
 extern void ax25_t1_timeout(ax25_cb *);
+extern void ax25_link_failed(ax25_cb *, int);
+extern int  (*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *);
+extern int  ax25_listen_mine(ax25_address *, struct device *);
+
+/* sysctl_net_ax25.c */
+extern void ax25_register_sysctl(void);
+extern void ax25_unregister_sysctl(void);
 
 /* ... */
 
-extern ax25_cb * volatile ax25_list;
+extern ax25_cb *volatile ax25_list;
+
+/* support routines for modules that use AX.25, in ax25_timer.c */
+extern int  ax25_protocol_register(unsigned int, int (*)(struct sk_buff *, ax25_cb *));
+extern void ax25_protocol_release(unsigned int);
+extern int  ax25_linkfail_register(void (*)(ax25_cb *, int));
+extern void ax25_linkfail_release(void (*)(ax25_cb *, int));
+extern int  ax25_listen_register(ax25_address *, struct device *);
+extern void ax25_listen_release(ax25_address *, struct device *);
+extern int  ax25_protocol_is_registered(unsigned int);
 
 #endif