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 Tromsų 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 #define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER+LAP_MAX_HEADER)
102
103 /*
104 * IrLAN client
105 */
106 struct irlan_client_cb {
107 int state;
108
109 int open_retries;
110
111 struct tsap_cb *tsap_ctrl;
112 __u32 max_sdu_size;
113 __u8 max_header_size;
114
115 int access_type; /* Access type of provider */
116 __u8 reconnect_key[255];
117 __u8 key_len;
118
119 __u16 recv_arb_val;
120 __u16 max_frame;
121 int filter_type;
122
123 int unicast_open;
124 int broadcast_open;
125
126 int tx_busy;
127 struct sk_buff_head txq; /* Transmit control queue */
128
129 struct iriap_cb *iriap;
130
131 struct timer_list kick_timer;
132 };
133
134 /*
135 * IrLAN provider
136 */
137 struct irlan_provider_cb {
138 int state;
139
140 struct tsap_cb *tsap_ctrl;
141 __u32 max_sdu_size;
142 __u8 max_header_size;
143
144 /*
145 * Store some values here which are used by the provider to parse
146 * the filter operations
147 */
148 int data_chan;
149 int filter_type;
150 int filter_mode;
151 int filter_operation;
152 int filter_entry;
153 int access_type; /* Access type */
154 __u16 send_arb_val;
155
156 __u8 mac_address[6]; /* Generated MAC address for peer device */
157 };
158
159 /*
160 * IrLAN control block
161 */
162 struct irlan_cb {
163 int magic;
164 struct list_head dev_list;
165 struct net_device *dev; /* Ethernet device structure*/
166 struct net_device_stats stats;
167
168 __u32 saddr; /* Source device address */
169 __u32 daddr; /* Destination device address */
170 int disconnect_reason; /* Why we got disconnected */
171
172 int media; /* Media type */
173 __u8 version[2]; /* IrLAN version */
174
175 struct tsap_cb *tsap_data; /* Data TSAP */
176
177 int use_udata; /* Use Unit Data transfers */
178
179 __u8 stsap_sel_data; /* Source data TSAP selector */
180 __u8 dtsap_sel_data; /* Destination data TSAP selector */
181 __u8 dtsap_sel_ctrl; /* Destination ctrl TSAP selector */
182
183 struct irlan_client_cb client; /* Client specific fields */
184 struct irlan_provider_cb provider; /* Provider specific fields */
185
186 __u32 max_sdu_size;
187 __u8 max_header_size;
188
189 wait_queue_head_t open_wait;
190 struct timer_list watchdog_timer;
191 };
192
193 void irlan_close(struct irlan_cb *self);
194 void irlan_close_tsaps(struct irlan_cb *self);
195
196 int irlan_register_netdev(struct irlan_cb *self);
197 void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
198 void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
199
200 void irlan_open_data_tsap(struct irlan_cb *self);
201
202 int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
203
204 struct irlan_cb *irlan_get_any(void);
205 void irlan_get_provider_info(struct irlan_cb *self);
206 void irlan_get_media_char(struct irlan_cb *self);
207 void irlan_open_data_channel(struct irlan_cb *self);
208 void irlan_close_data_channel(struct irlan_cb *self);
209 void irlan_set_multicast_filter(struct irlan_cb *self, int status);
210 void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
211
212 int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
213 int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
214 int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
215 int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
216 __u16 value_len);
217
218 int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);
219
220 #endif
221
222
223
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