Import of Linux 2.2.12 subset (ipv4 stack and related)

1 files changed, 381 insertions, 0 deletions

diff --git a/pfinet/linux-src/include/linux/wanrouter.h b/pfinet/linux-src/include/linux/wanrouter.h
new file mode 100644
index 00000000..fd63868f
--- /dev/null
+++ b/pfinet/linux-src/include/linux/wanrouter.h
@@ -0,0 +1,381 @@
+/*****************************************************************************
+* router.h	Definitions for the WAN Multiprotocol Router Module.
+*		This module provides API and common services for WAN Link
+*		Drivers and is completely hardware-independent.
+*
+* Author:	Gene Kozin	<genek@compuserve.com>
+*		Jaspreet Singh	<jaspreet@sangoma.com>
+*
+* Copyright:	(c) 1995-1997 Sangoma Technologies Inc.
+*
+*		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; either version
+*		2 of the License, or (at your option) any later version.
+* ============================================================================
+* Nov 06, 1997	Jaspreet Singh	Changed Router Driver version to 1.1 from 1.0
+* Oct 20, 1997	Jaspreet Singh	Added 'cir','bc','be' and 'mc' to 'wanif_conf_t'
+*				Added 'enable_IPX' and 'network_number' to 
+*				'wan_device_t'.  Also added defines for
+*				UDP PACKET TYPE, Interrupt test, critical values*				for RACE conditions.
+* Oct 05, 1997	Jaspreet Singh	Added 'dlci_num' and 'dlci[100]' to 
+*				'wan_fr_conf_t' to configure a list of dlci(s)
+*				for a NODE 
+* Jul 07, 1997	Jaspreet Singh	Added 'ttl' to 'wandev_conf_t' & 'wan_device_t'
+* May 29, 1997 	Jaspreet Singh	Added 'tx_int_enabled' to 'wan_device_t'
+* May 21, 1997	Jaspreet Singh	Added 'udp_port' to 'wan_device_t'
+* Apr 25, 1997  Farhan Thawar   Added 'udp_port' to 'wandev_conf_t'
+* Jan 16, 1997	Gene Kozin	router_devlist made public
+* Jan 02, 1997	Gene Kozin	Initial version (based on wanpipe.h).
+*****************************************************************************/
+#ifndef	_ROUTER_H
+#define	_ROUTER_H
+
+#define	ROUTER_NAME	"wanrouter"	/* in case we ever change it */
+#define	ROUTER_VERSION	1		/* version number */
+#define	ROUTER_RELEASE	1		/* release (minor version) number */
+#define	ROUTER_IOCTL	'W'		/* for IOCTL calls */
+#define	ROUTER_MAGIC	0x524D4157L	/* signature: 'WANR' reversed */
+
+/* IOCTL codes for /proc/router/<device> entries (up to 255) */
+enum router_ioctls
+{
+	ROUTER_SETUP	= ROUTER_IOCTL<<8,	/* configure device */
+	ROUTER_DOWN,				/* shut down device */
+	ROUTER_STAT,				/* get device status */
+	ROUTER_IFNEW,				/* add interface */
+	ROUTER_IFDEL,				/* delete interface */
+	ROUTER_IFSTAT,				/* get interface status */
+	ROUTER_USER	= (ROUTER_IOCTL<<8)+16,	/* driver-specific calls */
+	ROUTER_USER_MAX	= (ROUTER_IOCTL<<8)+31
+};
+
+/* NLPID for packet encapsulation (ISO/IEC TR 9577) */
+#define	NLPID_IP	0xCC	/* Internet Protocol Datagram */
+#define	NLPID_SNAP	0x80	/* IEEE Subnetwork Access Protocol */
+#define	NLPID_CLNP	0x81	/* ISO/IEC 8473 */
+#define	NLPID_ESIS	0x82	/* ISO/IEC 9542 */
+#define	NLPID_ISIS	0x83	/* ISO/IEC ISIS */
+#define	NLPID_Q933	0x08	/* CCITT Q.933 */
+
+/* Miscellaneous */
+#define	WAN_IFNAME_SZ	15	/* max length of the interface name */
+#define	WAN_DRVNAME_SZ	15	/* max length of the link driver name */
+#define	WAN_ADDRESS_SZ	31	/* max length of the WAN media address */
+
+/* Defines for UDP PACKET TYPE */
+#define UDP_PTPIPE_TYPE 	0x01
+#define UDP_FPIPE_TYPE		0x02
+#define UDP_DRVSTATS_TYPE 	0x03
+#define UDP_INVALID_TYPE  	0x04
+
+/* Command return code */
+#define CMD_OK		0		/* normal firmware return code */
+#define CMD_TIMEOUT	0xFF		/* firmware command timed out */
+
+/* UDP Packet Management */
+#define UDP_PKT_FRM_STACK	0x00
+#define UDP_PKT_FRM_NETWORK	0x01
+
+/* Maximum interrupt test counter */
+#define MAX_INTR_TEST_COUNTER	100
+
+/* Critical Values for RACE conditions*/
+#define CRITICAL_IN_ISR		0xA1
+#define CRITICAL_INTR_HANDLED	0xB1
+
+/****** Data Types **********************************************************/
+
+/*----------------------------------------------------------------------------
+ * X.25-specific link-level configuration.
+ */
+typedef struct wan_x25_conf
+{
+	unsigned lo_pvc;	/* lowest permanent circuit number */
+	unsigned hi_pvc;	/* highest permanent circuit number */
+	unsigned lo_svc;	/* lowest switched circuit number */
+	unsigned hi_svc;	/* highest switched circuit number */
+	unsigned hdlc_window;	/* HDLC window size (1..7) */
+	unsigned pkt_window;	/* X.25 packet window size (1..7) */
+	unsigned t1;		/* HDLC timer T1, sec (1..30) */
+	unsigned t2;		/* HDLC timer T2, sec (0..29) */
+	unsigned t4;		/* HDLC supervisory frame timer = T4 * T1 */
+	unsigned n2;		/* HDLC retransmission limit (1..30) */
+	unsigned t10_t20;	/* X.25 RESTART timeout, sec (1..255) */
+	unsigned t11_t21;	/* X.25 CALL timeout, sec (1..255) */
+	unsigned t12_t22;	/* X.25 RESET timeout, sec (1..255) */
+	unsigned t13_t23;	/* X.25 CLEAR timeout, sec (1..255) */
+	unsigned t16_t26;	/* X.25 INTERRUPT timeout, sec (1..255) */
+	unsigned t28;		/* X.25 REGISTRATION timeout, sec (1..255) */
+	unsigned r10_r20;	/* RESTART retransmission limit (0..250) */
+	unsigned r12_r22;	/* RESET retransmission limit (0..250) */
+	unsigned r13_r23;	/* CLEAR retransmission limit (0..250) */
+	unsigned ccitt_compat;	/* compatibility mode: 1988/1984/1980 */
+} wan_x25_conf_t;
+
+/*----------------------------------------------------------------------------
+ * Frame relay specific link-level configuration.
+ */
+typedef struct wan_fr_conf
+{
+	unsigned signalling;	/* local in-channel signalling type */
+	unsigned t391;		/* link integrity verification timer */
+	unsigned t392;		/* polling verification timer */
+	unsigned n391;		/* full status polling cycle counter */
+	unsigned n392;		/* error threshold counter */
+	unsigned n393;		/* monitored events counter */
+	unsigned dlci_num;	/* number of DLCs (access node) */
+	unsigned  dlci[100];    /* List of all DLCIs */
+} wan_fr_conf_t;
+
+/*----------------------------------------------------------------------------
+ * PPP-specific link-level configuration.
+ */
+typedef struct wan_ppp_conf
+{
+	unsigned restart_tmr;	/* restart timer */
+	unsigned auth_rsrt_tmr;	/* authentication timer */
+	unsigned auth_wait_tmr;	/* authentication timer */
+	unsigned mdm_fail_tmr;	/* modem failure timer */
+	unsigned dtr_drop_tmr;	/* DTR drop timer */
+	unsigned connect_tmout;	/* connection timeout */
+	unsigned conf_retry;	/* max. retry */
+	unsigned term_retry;	/* max. retry */
+	unsigned fail_retry;	/* max. retry */
+	unsigned auth_retry;	/* max. retry */
+	unsigned auth_options;	/* authentication opt. */
+	unsigned ip_options;	/* IP options */
+} wan_ppp_conf_t;
+
+/*----------------------------------------------------------------------------
+ * WAN device configuration. Passed to ROUTER_SETUP IOCTL.
+ */
+typedef struct wandev_conf
+{
+	unsigned magic;		/* magic number (for verification) */
+	unsigned config_id;	/* configuration structure identifier */
+				/****** hardware configuration ******/
+	unsigned ioport;	/* adapter I/O port base */
+	unsigned long maddr;	/* dual-port memory address */
+	unsigned msize;		/* dual-port memory size */
+	int irq;		/* interrupt request level */
+	int dma;		/* DMA request level */
+	unsigned bps;		/* data transfer rate */
+	unsigned mtu;		/* maximum transmit unit size */
+        unsigned udp_port;      /* UDP port for management */
+	unsigned char ttl;	/* Time To Live for UDP security */
+        char interface;		/* RS-232/V.35, etc. */
+	char clocking;		/* external/internal */
+	char line_coding;	/* NRZ/NRZI/FM0/FM1, etc. */
+	char station;		/* DTE/DCE, primary/secondary, etc. */
+	char connection;	/* permanent/switched/on-demand */
+	unsigned hw_opt[4];	/* other hardware options */
+	unsigned char enable_IPX;	/* Enable or Disable IPX */
+	unsigned long network_number;	/* Network Number for IPX */
+	unsigned reserved[4];
+				/****** arbitrary data ***************/
+	unsigned data_size;	/* data buffer size */
+	void* data;		/* data buffer, e.g. firmware */
+	union			/****** protocol-specific ************/
+	{
+		wan_x25_conf_t x25;	/* X.25 configuration */
+		wan_ppp_conf_t ppp;	/* PPP configuration */
+		wan_fr_conf_t fr;	/* frame relay configuration */
+	} u;
+} wandev_conf_t;
+
+/* 'config_id' definitions */
+#define	WANCONFIG_X25	101	/* X.25 link */
+#define	WANCONFIG_FR	102	/* frame relay link */
+#define	WANCONFIG_PPP	103	/* synchronous PPP link */
+
+/*
+ * Configuration options defines.
+ */
+/* general options */
+#define	WANOPT_OFF	0
+#define	WANOPT_ON	1
+#define	WANOPT_NO	0
+#define	WANOPT_YES	1
+
+/* intercace options */
+#define	WANOPT_RS232	0
+#define	WANOPT_V35	1
+
+/* data encoding options */
+#define	WANOPT_NRZ	0
+#define	WANOPT_NRZI	1
+#define	WANOPT_FM0	2
+#define	WANOPT_FM1	3
+
+/* link type options */
+#define	WANOPT_POINTTOPOINT	0	/* RTS always active */
+#define	WANOPT_MULTIDROP	1	/* RTS is active when transmitting */
+
+/* clocking options */
+#define	WANOPT_EXTERNAL	0
+#define	WANOPT_INTERNAL	1
+
+/* station options */
+#define	WANOPT_DTE		0
+#define	WANOPT_DCE		1
+#define	WANOPT_CPE		0
+#define	WANOPT_NODE		1
+#define	WANOPT_SECONDARY	0
+#define	WANOPT_PRIMARY		1
+
+/* connection options */
+#define	WANOPT_PERMANENT	0	/* DTR always active */
+#define	WANOPT_SWITCHED		1	/* use DTR to setup link (dial-up) */
+#define	WANOPT_ONDEMAND		2	/* activate DTR only before sending */
+
+/* frame relay in-channel signalling */
+#define	WANOPT_FR_ANSI		0	/* ANSI T1.617 Annex D */
+#define	WANOPT_FR_Q933		1	/* ITU Q.933A */
+#define	WANOPT_FR_LMI		2	/* LMI */
+
+/*----------------------------------------------------------------------------
+ * WAN Link Status Info (for ROUTER_STAT IOCTL).
+ */
+typedef struct wandev_stat
+{
+	unsigned state;		/* link state */
+	unsigned ndev;		/* number of configured interfaces */
+
+	/* link/interface configuration */
+	unsigned connection;	/* permanent/switched/on-demand */
+	unsigned media_type;	/* Frame relay/PPP/X.25/SDLC, etc. */
+	unsigned mtu;		/* max. transmit unit for this device */
+
+	/* physical level statistics */
+	unsigned modem_status;	/* modem status */
+	unsigned rx_frames;	/* received frames count */
+	unsigned rx_overruns;	/* receiver overrun error count */
+	unsigned rx_crc_err;	/* receive CRC error count */
+	unsigned rx_aborts;	/* received aborted frames count */
+	unsigned rx_bad_length;	/* unexpetedly long/short frames count */
+	unsigned rx_dropped;	/* frames discarded at device level */
+	unsigned tx_frames;	/* transmitted frames count */
+	unsigned tx_underruns;	/* aborted transmissions (underruns) count */
+	unsigned tx_timeouts;	/* transmission timeouts */
+	unsigned tx_rejects;	/* other transmit errors */
+
+	/* media level statistics */
+	unsigned rx_bad_format;	/* frames with invalid format */
+	unsigned rx_bad_addr;	/* frames with invalid media address */
+	unsigned tx_retries;	/* frames re-transmitted */
+	unsigned reserved[16];	/* reserved for future use */
+} wandev_stat_t;
+
+/* 'state' defines */
+enum wan_states
+{
+	WAN_UNCONFIGURED,	/* link/channel is not configured */
+	WAN_DISCONNECTED,	/* link/channel is disconnected */
+	WAN_CONNECTING,		/* connection is in progress */
+	WAN_CONNECTED,		/* link/channel is operational */
+	WAN_LIMIT		/* for verification only */
+};
+
+/* 'modem_status' masks */
+#define	WAN_MODEM_CTS	0x0001	/* CTS line active */
+#define	WAN_MODEM_DCD	0x0002	/* DCD line active */
+#define	WAN_MODEM_DTR	0x0010	/* DTR line active */
+#define	WAN_MODEM_RTS	0x0020	/* RTS line active */
+
+/*----------------------------------------------------------------------------
+ * WAN interface (logical channel) configuration (for ROUTER_IFNEW IOCTL).
+ */
+typedef struct wanif_conf
+{
+	unsigned magic;			/* magic number */
+	unsigned config_id;		/* configuration identifier */
+	char name[WAN_IFNAME_SZ+1];	/* interface name, ASCIIZ */
+	char addr[WAN_ADDRESS_SZ+1];	/* media address, ASCIIZ */
+	unsigned idle_timeout;		/* sec, before disconnecting */
+	unsigned hold_timeout;		/* sec, before re-connecting */
+	unsigned cir;			/* Committed Information Rate fwd,bwd*/
+	unsigned bc;			/* Committed Burst Size fwd, bwd */
+	unsigned be;			/* Excess Burst Size fwd, bwd */ 
+	char mc;			/* Multicast on or off */
+	int reserved[8];		/* reserved for future extensions */
+} wanif_conf_t;
+
+#ifdef	__KERNEL__
+/****** Kernel Interface ****************************************************/
+
+#include <linux/fs.h>		/* support for device drivers */
+#include <linux/proc_fs.h>	/* proc filesystem pragmatics */
+#include <linux/inet.h>		/* in_aton(), in_ntoa() prototypes */
+#include <linux/netdevice.h>	/* support for network drivers */
+
+/*----------------------------------------------------------------------------
+ * WAN device data space.
+ */
+typedef struct wan_device
+{
+	unsigned magic;			/* magic number */
+	char* name;			/* -> WAN device name (ASCIIZ) */
+	void* private;			/* -> driver private data */
+					/****** hardware configuration ******/
+	unsigned ioport;		/* adapter I/O port base #1 */
+	void * maddr;			/* dual-port memory address */
+	unsigned msize;			/* dual-port memory size */
+	int irq;			/* interrupt request level */
+	int dma;			/* DMA request level */
+	unsigned bps;			/* data transfer rate */
+	unsigned mtu;			/* max physical transmit unit size */
+	unsigned udp_port;              /* UDP port for management */
+        unsigned char ttl;		/* Time To Live for UDP security */
+	unsigned enable_tx_int; 	/* Transmit Interrupt enabled or not */
+	char interface;			/* RS-232/V.35, etc. */
+	char clocking;			/* external/internal */
+	char line_coding;		/* NRZ/NRZI/FM0/FM1, etc. */
+	char station;			/* DTE/DCE, primary/secondary, etc. */
+	char connection;		/* permanent/switched/on-demand */
+	unsigned hw_opt[4];		/* other hardware options */
+	unsigned char enable_IPX;	/* Enable or Disable IPX */
+	unsigned long network_number;	/* Network Number for IPX */
+					/****** status and statistics *******/
+	char state;			/* device state */
+	unsigned modem_status;		/* modem status */
+	struct enet_statistics stats;	/* interface statistics */
+	unsigned reserved[16];		/* reserved for future use */
+	unsigned critical;		/* critical section flag */
+					/****** device management methods ***/
+	int (*setup) (struct wan_device* wandev, wandev_conf_t* conf);
+	int (*shutdown) (struct wan_device* wandev);
+	int (*update) (struct wan_device* wandev);
+	int (*ioctl) (struct wan_device* wandev, unsigned cmd,
+		unsigned long arg);
+	int (*new_if) (struct wan_device* wandev, struct device* dev,
+		wanif_conf_t* conf);
+	int (*del_if) (struct wan_device* wandev, struct device* dev);
+					/****** maintained by the router ****/
+	struct wan_device* next;	/* -> next device */
+	struct device* dev;		/* list of network interfaces */
+	unsigned ndev;			/* number of interfaces */
+	struct proc_dir_entry dent;	/* proc filesystem entry */
+} wan_device_t;
+
+/* Public functions available for device drivers */
+extern int register_wan_device(wan_device_t* wandev);
+extern int unregister_wan_device(char* name);
+unsigned short wanrouter_type_trans(struct sk_buff* skb, struct device* dev);
+int wanrouter_encapsulate(struct sk_buff* skb, struct device* dev);
+
+/* Proc interface functions. These must not be called by the drivers! */
+extern int wanrouter_proc_init (void);
+extern void wanrouter_proc_cleanup (void);
+extern int wanrouter_proc_add (wan_device_t* wandev);
+extern int wanrouter_proc_delete (wan_device_t* wandev);
+extern int wanrouter_ioctl(
+	struct inode* inode, struct file* file,
+	unsigned int cmd, unsigned long arg)
+;
+
+/* Public Data */
+extern wan_device_t* router_devlist;	/* list of registered devices */
+
+#endif	/* __KERNEL__ */
+#endif	/* _ROUTER_H */