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+/*****************************************************************************
+* wanrouter.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: Nenad Corbic <ncorbic@sangoma.com>
+* Gideon Hack
+* Additions: Arnaldo Melo
+*
+* Copyright: (c) 1995-2000 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.
+* ============================================================================
+* Jul 21, 2000 Nenad Corbic Added WAN_FT1_READY State
+* Feb 24, 2000 Nenad Corbic Added support for socket based x25api
+* Jan 28, 2000 Nenad Corbic Added support for the ASYNC protocol.
+* Oct 04, 1999 Nenad Corbic Updated for 2.1.0 release
+* Jun 02, 1999 Gideon Hack Added support for the S514 adapter.
+* May 23, 1999 Arnaldo Melo Added local_addr to wanif_conf_t
+* WAN_DISCONNECTING state added
+* Jul 20, 1998 David Fong Added Inverse ARP options to 'wanif_conf_t'
+* Jun 12, 1998 David Fong Added Cisco HDLC support.
+* Dec 16, 1997 Jaspreet Singh Moved 'enable_IPX' and 'network_number' to
+* 'wanif_conf_t'
+* Dec 05, 1997 Jaspreet Singh Added 'pap', 'chap' to 'wanif_conf_t'
+* Added 'authenticator' to 'wan_ppp_conf_t'
+* 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).
+*****************************************************************************/
+
+#include <linux/spinlock.h> /* Support for SMP Locking */
+
+#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
+};
+
+/* identifiers for displaying proc file data for dual port adapters */
+#define PROC_DATA_PORT_0 0x8000 /* the data is for port 0 */
+#define PROC_DATA_PORT_1 0x8001 /* the data is for port 1 */
+
+/* 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 */
+#define USED_BY_FIELD 8 /* max length of the used by field */
+
+/* Defines for UDP PACKET TYPE */
+#define UDP_PTPIPE_TYPE 0x01
+#define UDP_FPIPE_TYPE 0x02
+#define UDP_CPIPE_TYPE 0x03
+#define UDP_DRVSTATS_TYPE 0x04
+#define UDP_INVALID_TYPE 0x05
+
+/* 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 */
+ unsigned x25_conf_opt; /* User defined x25 config optoins */
+ unsigned char LAPB_hdlc_only; /* Run in HDLC only mode */
+ unsigned char logging; /* Control connection logging */
+ unsigned char oob_on_modem; /* Whether to send modem status to the user app */
+} 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 */
+ char authenticator; /* AUTHENTICATOR or not */
+ char ip_mode; /* Static/Host/Peer */
+} wan_ppp_conf_t;
+
+/*----------------------------------------------------------------------------
+ * CHDLC-specific link-level configuration.
+ */
+typedef struct wan_chdlc_conf
+{
+ unsigned char ignore_dcd; /* Protocol options: */
+ unsigned char ignore_cts; /* Ignore these to determine */
+ unsigned char ignore_keepalive; /* link status (Yes or No) */
+ unsigned char hdlc_streaming; /* hdlc_streaming mode (Y/N) */
+ unsigned char receive_only; /* no transmit buffering (Y/N) */
+ unsigned keepalive_tx_tmr; /* transmit keepalive timer */
+ unsigned keepalive_rx_tmr; /* receive keepalive timer */
+ unsigned keepalive_err_margin; /* keepalive_error_tolerance */
+ unsigned slarp_timer; /* SLARP request timer */
+} wan_chdlc_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 */
+ char S514_CPU_no[1]; /* S514 PCI adapter CPU number ('A' or 'B') */
+ unsigned PCI_slot_no; /* S514 PCI adapter slot number */
+ char auto_pci_cfg; /* S515 PCI automatic slot detection */
+ char comm_port; /* Communication Port (PRI=0, SEC=1) */
+ 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 */
+ unsigned char ft1; /* FT1 Configurator Option */
+ 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 */
+ char read_mode; /* read mode: Polling or interrupt */
+ char receive_only; /* disable tx buffers */
+ char tty; /* Create a fake tty device */
+ unsigned tty_major; /* Major number for wanpipe tty device */
+ unsigned tty_minor; /* Minor number for wanpipe tty device */
+ unsigned tty_mode; /* TTY operation mode SYNC or ASYNC */
+ char backup; /* Backup Mode */
+ unsigned hw_opt[4]; /* other hardware options */
+ 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 */
+ wan_chdlc_conf_t chdlc; /* Cisco HDLC 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 */
+#define WANCONFIG_CHDLC 104 /* Cisco HDLC Link */
+#define WANCONFIG_BSC 105 /* BiSync Streaming */
+#define WANCONFIG_HDLC 106 /* HDLC Support */
+#define WANCONFIG_MPPP 107 /* Multi Port PPP over RAW CHDLC */
+
+/*
+ * 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 1 /* ANSI T1.617 Annex D */
+#define WANOPT_FR_Q933 2 /* ITU Q.933A */
+#define WANOPT_FR_LMI 3 /* LMI */
+
+/* PPP IP Mode Options */
+#define WANOPT_PPP_STATIC 0
+#define WANOPT_PPP_HOST 1
+#define WANOPT_PPP_PEER 2
+
+/* ASY Mode Options */
+#define WANOPT_ONE 1
+#define WANOPT_TWO 2
+#define WANOPT_ONE_AND_HALF 3
+
+#define WANOPT_NONE 0
+#define WANOPT_ODD 1
+#define WANOPT_EVEN 2
+
+/* CHDLC Protocol Options */
+/* DF Commmented out for now.
+
+#define WANOPT_CHDLC_NO_DCD IGNORE_DCD_FOR_LINK_STAT
+#define WANOPT_CHDLC_NO_CTS IGNORE_CTS_FOR_LINK_STAT
+#define WANOPT_CHDLC_NO_KEEPALIVE IGNORE_KPALV_FOR_LINK_STAT
+*/
+
+/* Port options */
+#define WANOPT_PRI 0
+#define WANOPT_SEC 1
+/* read mode */
+#define WANOPT_INTR 0
+#define WANOPT_POLL 1
+
+
+#define WANOPT_TTY_SYNC 0
+#define WANOPT_TTY_ASYNC 1
+/*----------------------------------------------------------------------------
+ * 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 */
+ WAN_DUALPORT, /* for Dual Port cards */
+ WAN_DISCONNECTING,
+ WAN_FT1_READY /* FT1 Configurator Ready */
+};
+
+enum {
+ WAN_LOCAL_IP,
+ WAN_POINTOPOINT_IP,
+ WAN_NETMASK_IP,
+ WAN_BROADCAST_IP
+};
+
+/* '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 */
+ char usedby[USED_BY_FIELD]; /* used by API or WANPIPE */
+ 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 */
+ unsigned char enable_IPX; /* Enable or Disable IPX */
+ unsigned char inarp; /* Send Inverse ARP requests Y/N */
+ unsigned inarp_interval; /* sec, between InARP requests */
+ unsigned long network_number; /* Network Number for IPX */
+ char mc; /* Multicast on or off */
+ char local_addr[WAN_ADDRESS_SZ+1];/* local media address, ASCIIZ */
+ unsigned char port; /* board port */
+ unsigned char protocol; /* prococol used in this channel (TCPOX25 or X25) */
+ char pap; /* PAP enabled or disabled */
+ char chap; /* CHAP enabled or disabled */
+ unsigned char userid[511]; /* List of User Id */
+ unsigned char passwd[511]; /* List of passwords */
+ unsigned char sysname[31]; /* Name of the system */
+ unsigned char ignore_dcd; /* Protocol options: */
+ unsigned char ignore_cts; /* Ignore these to determine */
+ unsigned char ignore_keepalive; /* link status (Yes or No) */
+ unsigned char hdlc_streaming; /* Hdlc streaming mode (Y/N) */
+ unsigned keepalive_tx_tmr; /* transmit keepalive timer */
+ unsigned keepalive_rx_tmr; /* receive keepalive timer */
+ unsigned keepalive_err_margin; /* keepalive_error_tolerance */
+ unsigned slarp_timer; /* SLARP request timer */
+ unsigned char ttl; /* Time To Live for UDP security */
+ char interface; /* RS-232/V.35, etc. */
+ char clocking; /* external/internal */
+ unsigned bps; /* data transfer rate */
+ unsigned mtu; /* maximum transmit unit size */
+ unsigned char if_down; /* brind down interface when disconnected */
+ unsigned char gateway; /* Is this interface a gateway */
+ unsigned char true_if_encoding; /* Set the dev->type to true board protocol */
+
+ unsigned char asy_data_trans; /* async API options */
+ unsigned char rts_hs_for_receive; /* async Protocol options */
+ unsigned char xon_xoff_hs_for_receive;
+ unsigned char xon_xoff_hs_for_transmit;
+ unsigned char dcd_hs_for_transmit;
+ unsigned char cts_hs_for_transmit;
+ unsigned char async_mode;
+ unsigned tx_bits_per_char;
+ unsigned rx_bits_per_char;
+ unsigned stop_bits;
+ unsigned char parity;
+ unsigned break_timer;
+ unsigned inter_char_timer;
+ unsigned rx_complete_length;
+ unsigned xon_char;
+ unsigned xoff_char;
+ unsigned char receive_only; /* no transmit buffering (Y/N) */
+} 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/netdevice.h> /* support for network drivers */
+/*----------------------------------------------------------------------------
+ * WAN device data space.
+ */
+struct wan_device {
+ unsigned magic; /* magic number */
+ char* name; /* -> WAN device name (ASCIIZ) */
+ void* private; /* -> driver private data */
+ unsigned config_id; /* Configuration ID */
+ /****** hardware configuration ******/
+ unsigned ioport; /* adapter I/O port base #1 */
+ char S514_cpu_no[1]; /* PCI CPU Number */
+ unsigned char S514_slot_no; /* PCI Slot Number */
+ 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; /* 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 */
+ char signalling; /* Signalling RS232 or V35 */
+ char read_mode; /* read mode: Polling or interrupt */
+ char new_if_cnt; /* Number of interfaces per wanpipe */
+ char del_if_cnt; /* Number of times del_if() gets called */
+ unsigned char piggyback; /* Piggibacking a port */
+ unsigned hw_opt[4]; /* other hardware options */
+ /****** status and statistics *******/
+ char state; /* device state */
+ char api_status; /* device api status */
+ struct net_device_stats stats; /* interface statistics */
+ unsigned reserved[16]; /* reserved for future use */
+ unsigned long critical; /* critical section flag */
+ spinlock_t lock; /* Support for SMP Locking */
+
+ /****** 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 net_device *dev,
+ wanif_conf_t *conf);
+ int (*del_if)(struct wan_device *wandev, struct net_device *dev);
+ /****** maintained by the router ****/
+ struct wan_device* next; /* -> next device */
+ struct net_device* dev; /* list of network interfaces */
+ unsigned ndev; /* number of interfaces */
+ struct proc_dir_entry *dent; /* proc filesystem entry */
+};
+
+/* Public functions available for device drivers */
+extern int register_wan_device(struct wan_device *wandev);
+extern int unregister_wan_device(char *name);
+unsigned short wanrouter_type_trans(struct sk_buff *skb,
+ struct net_device *dev);
+int wanrouter_encapsulate(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type);
+
+/* 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(struct wan_device *wandev);
+extern int wanrouter_proc_delete(struct wan_device *wandev);
+extern int wanrouter_ioctl( struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+
+extern void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
+extern void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
+
+
+
+/* Public Data */
+/* list of registered devices */
+extern struct wan_device *wanrouter_router_devlist;
+
+#endif /* __KERNEL__ */
+#endif /* _ROUTER_H */