1 /*********************************************************************
3 * Filename: irlan_common.h
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>
12 * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
13 * All Rights Reserved.
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.
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.
24 ********************************************************************/
29 #include <asm/param.h> /* for HZ */
31 #include <linux/kernel.h>
32 #include <linux/types.h>
33 #include <linux/skbuff.h>
34 #include <linux/netdevice.h>
36 #include <net/irda/irttp.h>
38 #define IRLAN_MTU 1518
39 #define IRLAN_TIMEOUT 10*HZ /* 10 seconds */
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
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
66 /* Filter parameters */
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
85 /* Filter operations */
93 #define ACCESS_DIRECT 1
95 #define ACCESS_HOSTED 3
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
106 #define IRLAN_STRING_PARAMETER_LEN(name, value) (1 + strlen((name)) + 2 \
108 #define IRLAN_BYTE_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 1)
109 #define IRLAN_SHORT_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 2)
114 struct irlan_client_cb {
119 struct tsap_cb *tsap_ctrl;
121 __u8 max_header_size;
123 int access_type; /* Access type of provider */
124 __u8 reconnect_key[255];
135 struct sk_buff_head txq; /* Transmit control queue */
137 struct iriap_cb *iriap;
139 struct timer_list kick_timer;
145 struct irlan_provider_cb {
148 struct tsap_cb *tsap_ctrl;
150 __u8 max_header_size;
153 * Store some values here which are used by the provider to parse
154 * the filter operations
159 int filter_operation;
161 int access_type; /* Access type */
164 __u8 mac_address[6]; /* Generated MAC address for peer device */
168 * IrLAN control block
172 struct list_head dev_list;
173 struct net_device *dev; /* Ethernet device structure*/
174 struct net_device_stats stats;
176 __u32 saddr; /* Source device address */
177 __u32 daddr; /* Destination device address */
178 int disconnect_reason; /* Why we got disconnected */
180 int media; /* Media type */
181 __u8 version[2]; /* IrLAN version */
183 struct tsap_cb *tsap_data; /* Data TSAP */
185 int use_udata; /* Use Unit Data transfers */
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 */
191 struct irlan_client_cb client; /* Client specific fields */
192 struct irlan_provider_cb provider; /* Provider specific fields */
195 __u8 max_header_size;
197 wait_queue_head_t open_wait;
198 struct timer_list watchdog_timer;
201 void irlan_close(struct irlan_cb *self);
202 void irlan_close_tsaps(struct irlan_cb *self);
204 int irlan_register_netdev(struct irlan_cb *self);
205 void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
206 void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
208 void irlan_open_data_tsap(struct irlan_cb *self);
210 int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
212 struct irlan_cb *irlan_get_any(void);
213 void irlan_get_provider_info(struct irlan_cb *self);
214 void irlan_get_media_char(struct irlan_cb *self);
215 void irlan_open_data_channel(struct irlan_cb *self);
216 void irlan_close_data_channel(struct irlan_cb *self);
217 void irlan_set_multicast_filter(struct irlan_cb *self, int status);
218 void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
220 int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
221 int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
222 int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
223 int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
226 int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);