231 lines
6.2 KiB
C
231 lines
6.2 KiB
C
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/*********************************************************************
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*
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* Filename: irlan_common.h
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* Version: 0.8
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* Description: IrDA LAN access layer
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Sun Aug 31 20:14:37 1997
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* Modified at: Sun Oct 31 19:41:24 1999
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Neither Dag Brattli nor University of Tromsø admit liability nor
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* provide warranty for any of this software. This material is
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* provided "AS-IS" and at no charge.
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*
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********************************************************************/
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#ifndef IRLAN_H
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#define IRLAN_H
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#include <asm/param.h> /* for HZ */
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/if_ether.h>
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#include <net/irda/irttp.h>
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#define IRLAN_MTU 1518
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#define IRLAN_TIMEOUT 10*HZ /* 10 seconds */
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/* Command packet types */
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#define CMD_GET_PROVIDER_INFO 0
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#define CMD_GET_MEDIA_CHAR 1
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#define CMD_OPEN_DATA_CHANNEL 2
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#define CMD_CLOSE_DATA_CHAN 3
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#define CMD_RECONNECT_DATA_CHAN 4
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#define CMD_FILTER_OPERATION 5
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/* Some responses */
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#define RSP_SUCCESS 0
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#define RSP_INSUFFICIENT_RESOURCES 1
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#define RSP_INVALID_COMMAND_FORMAT 2
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#define RSP_COMMAND_NOT_SUPPORTED 3
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#define RSP_PARAM_NOT_SUPPORTED 4
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#define RSP_VALUE_NOT_SUPPORTED 5
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#define RSP_NOT_OPEN 6
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#define RSP_AUTHENTICATION_REQUIRED 7
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#define RSP_INVALID_PASSWORD 8
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#define RSP_PROTOCOL_ERROR 9
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#define RSP_ASYNCHRONOUS_ERROR 255
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/* Media types */
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#define MEDIA_802_3 1
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#define MEDIA_802_5 2
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/* Filter parameters */
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#define DATA_CHAN 1
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#define FILTER_TYPE 2
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#define FILTER_MODE 3
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/* Filter types */
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#define IRLAN_DIRECTED 0x01
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#define IRLAN_FUNCTIONAL 0x02
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#define IRLAN_GROUP 0x04
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#define IRLAN_MAC_FRAME 0x08
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#define IRLAN_MULTICAST 0x10
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#define IRLAN_BROADCAST 0x20
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#define IRLAN_IPX_SOCKET 0x40
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/* Filter modes */
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#define ALL 1
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#define FILTER 2
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#define NONE 3
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/* Filter operations */
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#define GET 1
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#define CLEAR 2
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#define ADD 3
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#define REMOVE 4
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#define DYNAMIC 5
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/* Access types */
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#define ACCESS_DIRECT 1
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#define ACCESS_PEER 2
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#define ACCESS_HOSTED 3
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#define IRLAN_BYTE 0
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#define IRLAN_SHORT 1
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#define IRLAN_ARRAY 2
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/* IrLAN sits on top if IrTTP */
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#define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER)
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/* 1 byte for the command code and 1 byte for the parameter count */
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#define IRLAN_CMD_HEADER 2
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#define IRLAN_STRING_PARAMETER_LEN(name, value) (1 + strlen((name)) + 2 \
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+ strlen ((value)))
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#define IRLAN_BYTE_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 1)
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#define IRLAN_SHORT_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 2)
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/*
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* IrLAN client
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*/
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struct irlan_client_cb {
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int state;
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int open_retries;
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struct tsap_cb *tsap_ctrl;
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__u32 max_sdu_size;
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__u8 max_header_size;
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int access_type; /* Access type of provider */
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__u8 reconnect_key[255];
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__u8 key_len;
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__u16 recv_arb_val;
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__u16 max_frame;
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int filter_type;
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int unicast_open;
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int broadcast_open;
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int tx_busy;
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struct sk_buff_head txq; /* Transmit control queue */
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struct iriap_cb *iriap;
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struct timer_list kick_timer;
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};
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/*
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* IrLAN provider
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*/
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struct irlan_provider_cb {
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int state;
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struct tsap_cb *tsap_ctrl;
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__u32 max_sdu_size;
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__u8 max_header_size;
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/*
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* Store some values here which are used by the provider to parse
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* the filter operations
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*/
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int data_chan;
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int filter_type;
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int filter_mode;
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int filter_operation;
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int filter_entry;
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int access_type; /* Access type */
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__u16 send_arb_val;
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__u8 mac_address[ETH_ALEN]; /* Generated MAC address for peer device */
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};
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/*
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* IrLAN control block
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*/
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struct irlan_cb {
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int magic;
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struct list_head dev_list;
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struct net_device *dev; /* Ethernet device structure*/
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__u32 saddr; /* Source device address */
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__u32 daddr; /* Destination device address */
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int disconnect_reason; /* Why we got disconnected */
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int media; /* Media type */
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__u8 version[2]; /* IrLAN version */
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struct tsap_cb *tsap_data; /* Data TSAP */
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int use_udata; /* Use Unit Data transfers */
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__u8 stsap_sel_data; /* Source data TSAP selector */
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__u8 dtsap_sel_data; /* Destination data TSAP selector */
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__u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */
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struct irlan_client_cb client; /* Client specific fields */
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struct irlan_provider_cb provider; /* Provider specific fields */
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__u32 max_sdu_size;
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__u8 max_header_size;
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wait_queue_head_t open_wait;
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struct timer_list watchdog_timer;
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};
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void irlan_close(struct irlan_cb *self);
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void irlan_close_tsaps(struct irlan_cb *self);
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int irlan_register_netdev(struct irlan_cb *self);
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void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
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void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
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void irlan_open_data_tsap(struct irlan_cb *self);
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int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
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struct irlan_cb *irlan_get_any(void);
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void irlan_get_provider_info(struct irlan_cb *self);
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void irlan_get_media_char(struct irlan_cb *self);
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void irlan_open_data_channel(struct irlan_cb *self);
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void irlan_close_data_channel(struct irlan_cb *self);
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void irlan_set_multicast_filter(struct irlan_cb *self, int status);
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void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
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int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
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int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
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int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
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int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
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__u16 value_len);
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int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);
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#endif
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