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 Tromsø 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 */ 114 struct 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 */ 145 struct 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 */ 170 struct irlan_cb { 171 int magic; 172 struct list_head dev_list; 173 struct net_device *dev; /* Ethernet device structure*/ 174 175 __u32 saddr; /* Source device address */ 176 __u32 daddr; /* Destination device address */ 177 int disconnect_reason; /* Why we got disconnected */ 178 179 int media; /* Media type */ 180 __u8 version[2]; /* IrLAN version */ 181 182 struct tsap_cb *tsap_data; /* Data TSAP */ 183 184 int use_udata; /* Use Unit Data transfers */ 185 186 __u8 stsap_sel_data; /* Source data TSAP selector */ 187 __u8 dtsap_sel_data; /* Destination data TSAP selector */ 188 __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */ 189 190 struct irlan_client_cb client; /* Client specific fields */ 191 struct irlan_provider_cb provider; /* Provider specific fields */ 192 193 __u32 max_sdu_size; 194 __u8 max_header_size; 195 196 wait_queue_head_t open_wait; 197 struct timer_list watchdog_timer; 198 }; 199 200 void irlan_close(struct irlan_cb *self); 201 void irlan_close_tsaps(struct irlan_cb *self); 202 203 int irlan_register_netdev(struct irlan_cb *self); 204 void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel); 205 void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout); 206 207 void irlan_open_data_tsap(struct irlan_cb *self); 208 209 int irlan_run_ctrl_tx_queue(struct irlan_cb *self); 210 211 struct irlan_cb *irlan_get_any(void); 212 void irlan_get_provider_info(struct irlan_cb *self); 213 void irlan_get_media_char(struct irlan_cb *self); 214 void irlan_open_data_channel(struct irlan_cb *self); 215 void irlan_close_data_channel(struct irlan_cb *self); 216 void irlan_set_multicast_filter(struct irlan_cb *self, int status); 217 void irlan_set_broadcast_filter(struct irlan_cb *self, int status); 218 219 int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value); 220 int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value); 221 int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value); 222 int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value, 223 __u16 value_len); 224 225 int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len); 226 227 #endif 228 229 230