1/********************************************************************* 2 * 3 * Filename: irlan_common.h 4 * Version: 0.8 5 * Description: IrDA LAN access layer 6 * Status: Experimental. 7 * Author: Dag Brattli <dagb@cs.uit.no> 8 * Created at: Sun Aug 31 20:14:37 1997 9 * Modified at: Sun Oct 31 19:41:24 1999 10 * Modified by: Dag Brattli <dagb@cs.uit.no> 11 * 12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>, 13 * All Rights Reserved. 14 * 15 * This program is free software; you can redistribute it and/or 16 * modify it under the terms of the GNU General Public License as 17 * published by the Free Software Foundation; either version 2 of 18 * the License, or (at your option) any later version. 19 * 20 * Neither Dag Brattli nor University of Troms�� admit liability nor 21 * provide warranty for any of this software. This material is 22 * provided "AS-IS" and at no charge. 23 * 24 ********************************************************************/ 25 26#ifndef IRLAN_H 27#define IRLAN_H 28 29#include <asm/param.h> /* for HZ */ 30 31#include <linux/kernel.h> 32#include <linux/types.h> 33#include <linux/skbuff.h> 34#include <linux/netdevice.h> 35 36#include <net/irda/irttp.h> 37 38#define IRLAN_MTU 1518 39#define IRLAN_TIMEOUT 10*HZ /* 10 seconds */ 40 41/* Command packet types */ 42#define CMD_GET_PROVIDER_INFO 0 43#define CMD_GET_MEDIA_CHAR 1 44#define CMD_OPEN_DATA_CHANNEL 2 45#define CMD_CLOSE_DATA_CHAN 3 46#define CMD_RECONNECT_DATA_CHAN 4 47#define CMD_FILTER_OPERATION 5 48 49/* Some responses */ 50#define RSP_SUCCESS 0 51#define RSP_INSUFFICIENT_RESOURCES 1 52#define RSP_INVALID_COMMAND_FORMAT 2 53#define RSP_COMMAND_NOT_SUPPORTED 3 54#define RSP_PARAM_NOT_SUPPORTED 4 55#define RSP_VALUE_NOT_SUPPORTED 5 56#define RSP_NOT_OPEN 6 57#define RSP_AUTHENTICATION_REQUIRED 7 58#define RSP_INVALID_PASSWORD 8 59#define RSP_PROTOCOL_ERROR 9 60#define RSP_ASYNCHRONOUS_ERROR 255 61 62/* Media types */ 63#define MEDIA_802_3 1 64#define MEDIA_802_5 2 65 66/* Filter parameters */ 67#define DATA_CHAN 1 68#define FILTER_TYPE 2 69#define FILTER_MODE 3 70 71/* Filter types */ 72#define IRLAN_DIRECTED 0x01 73#define IRLAN_FUNCTIONAL 0x02 74#define IRLAN_GROUP 0x04 75#define IRLAN_MAC_FRAME 0x08 76#define IRLAN_MULTICAST 0x10 77#define IRLAN_BROADCAST 0x20 78#define IRLAN_IPX_SOCKET 0x40 79 80/* Filter modes */ 81#define ALL 1 82#define FILTER 2 83#define NONE 3 84 85/* Filter operations */ 86#define GET 1 87#define CLEAR 2 88#define ADD 3 89#define REMOVE 4 90#define DYNAMIC 5 91 92/* Access types */ 93#define ACCESS_DIRECT 1 94#define ACCESS_PEER 2 95#define ACCESS_HOSTED 3 96 97#define IRLAN_BYTE 0 98#define IRLAN_SHORT 1 99#define IRLAN_ARRAY 2 100 101/* IrLAN sits on top if IrTTP */ 102#define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER) 103/* 1 byte for the command code and 1 byte for the parameter count */ 104#define IRLAN_CMD_HEADER 2 105 106#define IRLAN_STRING_PARAMETER_LEN(name, value) (1 + strlen((name)) + 2 \ 107 + strlen ((value))) 108#define IRLAN_BYTE_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 1) 109#define IRLAN_SHORT_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 2) 110 111/* 112 * IrLAN client 113 */ 114struct irlan_client_cb { 115 int state; 116 117 int open_retries; 118 119 struct tsap_cb *tsap_ctrl; 120 __u32 max_sdu_size; 121 __u8 max_header_size; 122 123 int access_type; /* Access type of provider */ 124 __u8 reconnect_key[255]; 125 __u8 key_len; 126 127 __u16 recv_arb_val; 128 __u16 max_frame; 129 int filter_type; 130 131 int unicast_open; 132 int broadcast_open; 133 134 int tx_busy; 135 struct sk_buff_head txq; /* Transmit control queue */ 136 137 struct iriap_cb *iriap; 138 139 struct timer_list kick_timer; 140}; 141 142/* 143 * IrLAN provider 144 */ 145struct irlan_provider_cb { 146 int state; 147 148 struct tsap_cb *tsap_ctrl; 149 __u32 max_sdu_size; 150 __u8 max_header_size; 151 152 /* 153 * Store some values here which are used by the provider to parse 154 * the filter operations 155 */ 156 int data_chan; 157 int filter_type; 158 int filter_mode; 159 int filter_operation; 160 int filter_entry; 161 int access_type; /* Access type */ 162 __u16 send_arb_val; 163 164 __u8 mac_address[6]; /* Generated MAC address for peer device */ 165}; 166 167/* 168 * IrLAN control block 169 */ 170struct irlan_cb { 171 int magic; 172 struct list_head dev_list; 173 struct net_device *dev; /* Ethernet device structure*/ 174 struct net_device_stats stats; 175 176 __u32 saddr; /* Source device address */ 177 __u32 daddr; /* Destination device address */ 178 int disconnect_reason; /* Why we got disconnected */ 179 180 int media; /* Media type */ 181 __u8 version[2]; /* IrLAN version */ 182 183 struct tsap_cb *tsap_data; /* Data TSAP */ 184 185 int use_udata; /* Use Unit Data transfers */ 186 187 __u8 stsap_sel_data; /* Source data TSAP selector */ 188 __u8 dtsap_sel_data; /* Destination data TSAP selector */ 189 __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */ 190 191 struct irlan_client_cb client; /* Client specific fields */ 192 struct irlan_provider_cb provider; /* Provider specific fields */ 193 194 __u32 max_sdu_size; 195 __u8 max_header_size; 196 197 wait_queue_head_t open_wait; 198 struct timer_list watchdog_timer; 199}; 200 201void irlan_close(struct irlan_cb *self); 202void irlan_close_tsaps(struct irlan_cb *self); 203 204int irlan_register_netdev(struct irlan_cb *self); 205void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel); 206void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout); 207 208void irlan_open_data_tsap(struct irlan_cb *self); 209 210int irlan_run_ctrl_tx_queue(struct irlan_cb *self); 211 212struct irlan_cb *irlan_get_any(void); 213void irlan_get_provider_info(struct irlan_cb *self); 214void irlan_get_media_char(struct irlan_cb *self); 215void irlan_open_data_channel(struct irlan_cb *self); 216void irlan_close_data_channel(struct irlan_cb *self); 217void irlan_set_multicast_filter(struct irlan_cb *self, int status); 218void irlan_set_broadcast_filter(struct irlan_cb *self, int status); 219 220int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value); 221int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value); 222int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value); 223int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value, 224 __u16 value_len); 225 226int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len); 227 228#endif 229