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/irqueue.h> 37 #include <net/irda/irttp.h> 38 39 #define IRLAN_MTU 1518 40 #define IRLAN_TIMEOUT 10*HZ /* 10 seconds */ 41 42 /* Command packet types */ 43 #define CMD_GET_PROVIDER_INFO 0 44 #define CMD_GET_MEDIA_CHAR 1 45 #define CMD_OPEN_DATA_CHANNEL 2 46 #define CMD_CLOSE_DATA_CHAN 3 47 #define CMD_RECONNECT_DATA_CHAN 4 48 #define CMD_FILTER_OPERATION 5 49 50 /* Some responses */ 51 #define RSP_SUCCESS 0 52 #define RSP_INSUFFICIENT_RESOURCES 1 53 #define RSP_INVALID_COMMAND_FORMAT 2 54 #define RSP_COMMAND_NOT_SUPPORTED 3 55 #define RSP_PARAM_NOT_SUPPORTED 4 56 #define RSP_VALUE_NOT_SUPPORTED 5 57 #define RSP_NOT_OPEN 6 58 #define RSP_AUTHENTICATION_REQUIRED 7 59 #define RSP_INVALID_PASSWORD 8 60 #define RSP_PROTOCOL_ERROR 9 61 #define RSP_ASYNCHRONOUS_ERROR 255 62 63 /* Media types */ 64 #define MEDIA_802_3 1 65 #define MEDIA_802_5 2 66 67 /* Filter parameters */ 68 #define DATA_CHAN 1 69 #define FILTER_TYPE 2 70 #define FILTER_MODE 3 71 72 /* Filter types */ 73 #define IRLAN_DIRECTED 0x01 74 #define IRLAN_FUNCTIONAL 0x02 75 #define IRLAN_GROUP 0x04 76 #define IRLAN_MAC_FRAME 0x08 77 #define IRLAN_MULTICAST 0x10 78 #define IRLAN_BROADCAST 0x20 79 #define IRLAN_IPX_SOCKET 0x40 80 81 /* Filter modes */ 82 #define ALL 1 83 #define FILTER 2 84 #define NONE 3 85 86 /* Filter operations */ 87 #define GET 1 88 #define CLEAR 2 89 #define ADD 3 90 #define REMOVE 4 91 #define DYNAMIC 5 92 93 /* Access types */ 94 #define ACCESS_DIRECT 1 95 #define ACCESS_PEER 2 96 #define ACCESS_HOSTED 3 97 98 #define IRLAN_BYTE 0 99 #define IRLAN_SHORT 1 100 #define IRLAN_ARRAY 2 101 102 #define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER+LAP_MAX_HEADER) 103 104 /* 105 * IrLAN client 106 */ 107 struct irlan_client_cb { 108 int state; 109 110 int open_retries; 111 112 struct tsap_cb *tsap_ctrl; 113 __u32 max_sdu_size; 114 __u8 max_header_size; 115 116 int access_type; /* Access type of provider */ 117 __u8 reconnect_key[255]; 118 __u8 key_len; 119 120 __u16 recv_arb_val; 121 __u16 max_frame; 122 int filter_type; 123 124 int unicast_open; 125 int broadcast_open; 126 127 int tx_busy; 128 struct sk_buff_head txq; /* Transmit control queue */ 129 130 struct iriap_cb *iriap; 131 132 struct timer_list kick_timer; 133 }; 134 135 /* 136 * IrLAN provider 137 */ 138 struct irlan_provider_cb { 139 int state; 140 141 struct tsap_cb *tsap_ctrl; 142 __u32 max_sdu_size; 143 __u8 max_header_size; 144 145 /* 146 * Store some values here which are used by the provider to parse 147 * the filter operations 148 */ 149 int data_chan; 150 int filter_type; 151 int filter_mode; 152 int filter_operation; 153 int filter_entry; 154 int access_type; /* Access type */ 155 __u16 send_arb_val; 156 157 __u8 mac_address[6]; /* Generated MAC address for peer device */ 158 }; 159 160 /* 161 * IrLAN control block 162 */ 163 struct irlan_cb { 164 irda_queue_t q; /* Must be first */ 165 166 int magic; 167 struct net_device dev; /* Ethernet device structure*/ 168 struct net_device_stats stats; 169 170 __u32 saddr; /* Source device address */ 171 __u32 daddr; /* Destination device address */ 172 int disconnect_reason; /* Why we got disconnected */ 173 174 int media; /* Media type */ 175 __u8 version[2]; /* IrLAN version */ 176 177 struct tsap_cb *tsap_data; /* Data TSAP */ 178 179 int use_udata; /* Use Unit Data transfers */ 180 181 __u8 stsap_sel_data; /* Source data TSAP selector */ 182 __u8 dtsap_sel_data; /* Destination data TSAP selector */ 183 __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */ 184 185 struct irlan_client_cb client; /* Client specific fields */ 186 struct irlan_provider_cb provider; /* Provider specific fields */ 187 188 __u32 max_sdu_size; 189 __u8 max_header_size; 190 191 wait_queue_head_t open_wait; 192 struct timer_list watchdog_timer; 193 }; 194 195 struct irlan_cb *irlan_open(__u32 saddr, __u32 daddr); 196 void irlan_close(struct irlan_cb *self); 197 void irlan_close_tsaps(struct irlan_cb *self); 198 199 int irlan_register_netdev(struct irlan_cb *self); 200 void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel); 201 void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout); 202 203 void irlan_open_data_tsap(struct irlan_cb *self); 204 205 int irlan_run_ctrl_tx_queue(struct irlan_cb *self); 206 207 void irlan_get_provider_info(struct irlan_cb *self); 208 void irlan_get_unicast_addr(struct irlan_cb *self); 209 void irlan_get_media_char(struct irlan_cb *self); 210 void irlan_open_data_channel(struct irlan_cb *self); 211 void irlan_close_data_channel(struct irlan_cb *self); 212 void irlan_set_multicast_filter(struct irlan_cb *self, int status); 213 void irlan_set_broadcast_filter(struct irlan_cb *self, int status); 214 void irlan_open_unicast_addr(struct irlan_cb *self); 215 216 int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value); 217 int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value); 218 int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value); 219 int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value, 220 __u16 value_len); 221 222 int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len); 223 void print_ret_code(__u8 code); 224 225 extern hashbin_t *irlan; 226 227 #endif 228 229 230