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- /*****************************************************************************
- * 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 */
-