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Linux kernel mirror (for testing)
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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 */
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
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
200void irlan_close(struct irlan_cb *self);
201void irlan_close_tsaps(struct irlan_cb *self);
202
203int irlan_register_netdev(struct irlan_cb *self);
204void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
205void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
206
207void irlan_open_data_tsap(struct irlan_cb *self);
208
209int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
210
211struct irlan_cb *irlan_get_any(void);
212void irlan_get_provider_info(struct irlan_cb *self);
213void irlan_get_media_char(struct irlan_cb *self);
214void irlan_open_data_channel(struct irlan_cb *self);
215void irlan_close_data_channel(struct irlan_cb *self);
216void irlan_set_multicast_filter(struct irlan_cb *self, int status);
217void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
218
219int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
220int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
221int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
222int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
223 __u16 value_len);
224
225int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);
226
227#endif
228
229