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/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 void irlan_mod_inc_use_count(void);
199 void irlan_mod_dec_use_count(void);
200
201 int irlan_register_netdev(struct irlan_cb *self);
202 void irlan_ias_register(struct irlan_cb *self, __u8 tsap_sel);
203 void irlan_start_watchdog_timer(struct irlan_cb *self, int timeout);
204
205 void irlan_open_data_tsap(struct irlan_cb *self);
206
207 int irlan_run_ctrl_tx_queue(struct irlan_cb *self);
208
209 void irlan_get_provider_info(struct irlan_cb *self);
210 void irlan_get_unicast_addr(struct irlan_cb *self);
211 void irlan_get_media_char(struct irlan_cb *self);
212 void irlan_open_data_channel(struct irlan_cb *self);
213 void irlan_close_data_channel(struct irlan_cb *self);
214 void irlan_set_multicast_filter(struct irlan_cb *self, int status);
215 void irlan_set_broadcast_filter(struct irlan_cb *self, int status);
216 void irlan_open_unicast_addr(struct irlan_cb *self);
217
218 int irlan_insert_byte_param(struct sk_buff *skb, char *param, __u8 value);
219 int irlan_insert_short_param(struct sk_buff *skb, char *param, __u16 value);
220 int irlan_insert_string_param(struct sk_buff *skb, char *param, char *value);
221 int irlan_insert_array_param(struct sk_buff *skb, char *name, __u8 *value,
222 __u16 value_len);
223
224 int irlan_extract_param(__u8 *buf, char *name, char *value, __u16 *len);
225 void print_ret_code(__u8 code);
226
227 extern hashbin_t *irlan;
228
229 #endif
230
231
232
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