/*****************************************************************************
* 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).
*****************************************************************************/
#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 */
#include <linux/spinlock.h> /* Support for SMP Locking */
/*----------------------------------------------------------------------------
* 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);
__be16 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 */