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p80211netdev.h
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1 /* p80211netdev.h
2 *
3 * WLAN net device structure and functions
4 *
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
7 *
8 * linux-wlan
9 *
10 * The contents of this file are subject to the Mozilla Public
11 * License Version 1.1 (the "License"); you may not use this file
12 * except in compliance with the License. You may obtain a copy of
13 * the License at http://www.mozilla.org/MPL/
14 *
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing
18 * rights and limitations under the License.
19 *
20 * Alternatively, the contents of this file may be used under the
21 * terms of the GNU Public License version 2 (the "GPL"), in which
22 * case the provisions of the GPL are applicable instead of the
23 * above. If you wish to allow the use of your version of this file
24 * only under the terms of the GPL and not to allow others to use
25 * your version of this file under the MPL, indicate your decision
26 * by deleting the provisions above and replace them with the notice
27 * and other provisions required by the GPL. If you do not delete
28 * the provisions above, a recipient may use your version of this
29 * file under either the MPL or the GPL.
30 *
31 * --------------------------------------------------------------------
32 *
33 * Inquiries regarding the linux-wlan Open Source project can be
34 * made directly to:
35 *
36 * AbsoluteValue Systems Inc.
37 * [email protected]
38 * http://www.linux-wlan.com
39 *
40 * --------------------------------------------------------------------
41 *
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
44 *
45 * --------------------------------------------------------------------
46 *
47 * This file declares the structure type that represents each wlan
48 * interface.
49 *
50 * --------------------------------------------------------------------
51 */
52 
53 #ifndef _LINUX_P80211NETDEV_H
54 #define _LINUX_P80211NETDEV_H
55 
56 #include <linux/interrupt.h>
57 #include <linux/wireless.h>
58 #include <linux/netdevice.h>
59 
60 #undef netdevice_t
61 typedef struct net_device netdevice_t;
62 
63 #define WLAN_RELEASE "0.3.0-staging"
64 
65 #define WLAN_DEVICE_CLOSED 0
66 #define WLAN_DEVICE_OPEN 1
67 
68 #define WLAN_MACMODE_NONE 0
69 #define WLAN_MACMODE_IBSS_STA 1
70 #define WLAN_MACMODE_ESS_STA 2
71 #define WLAN_MACMODE_ESS_AP 3
72 
73 /* MSD States */
74 #define WLAN_MSD_HWPRESENT_PENDING 1
75 #define WLAN_MSD_HWFAIL 2
76 #define WLAN_MSD_HWPRESENT 3
77 #define WLAN_MSD_FWLOAD_PENDING 4
78 #define WLAN_MSD_FWLOAD 5
79 #define WLAN_MSD_RUNNING_PENDING 6
80 #define WLAN_MSD_RUNNING 7
81 
82 #ifndef ETH_P_ECONET
83 #define ETH_P_ECONET 0x0018 /* needed for 2.2.x kernels */
84 #endif
85 
86 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
87 
88 #ifndef ARPHRD_IEEE80211
89 #define ARPHRD_IEEE80211 801 /* kernel 2.4.6 */
90 #endif
91 
92 #ifndef ARPHRD_IEEE80211_PRISM /* kernel 2.4.18 */
93 #define ARPHRD_IEEE80211_PRISM 802
94 #endif
95 
96 /*--- NSD Capabilities Flags ------------------------------*/
97 #define P80211_NSDCAP_HARDWAREWEP 0x01 /* hardware wep engine */
98 #define P80211_NSDCAP_SHORT_PREAMBLE 0x10 /* hardware supports */
99 #define P80211_NSDCAP_HWFRAGMENT 0x80 /* nsd handles frag/defrag */
100 #define P80211_NSDCAP_AUTOJOIN 0x100 /* nsd does autojoin */
101 #define P80211_NSDCAP_NOSCAN 0x200 /* nsd can scan */
102 
103 /* Received frame statistics */
104 typedef struct p80211_frmrx_t {
105  u32 mgmt;
106  u32 assocreq;
107  u32 assocresp;
108  u32 reassocreq;
109  u32 reassocresp;
110  u32 probereq;
111  u32 proberesp;
112  u32 beacon;
113  u32 atim;
114  u32 disassoc;
115  u32 authen;
116  u32 deauthen;
117  u32 mgmt_unknown;
118  u32 ctl;
119  u32 pspoll;
120  u32 rts;
121  u32 cts;
122  u32 ack;
123  u32 cfend;
124  u32 cfendcfack;
125  u32 ctl_unknown;
126  u32 data;
127  u32 dataonly;
128  u32 data_cfack;
129  u32 data_cfpoll;
130  u32 data__cfack_cfpoll;
131  u32 null;
132  u32 cfack;
133  u32 cfpoll;
134  u32 cfack_cfpoll;
135  u32 data_unknown;
136  u32 decrypt;
137  u32 decrypt_err;
138 } p80211_frmrx_t;
139 
140 /* called by /proc/net/wireless */
141 struct iw_statistics *p80211wext_get_wireless_stats(netdevice_t * dev);
142 /* wireless extensions' ioctls */
143 extern struct iw_handler_def p80211wext_handler_def;
144 int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
145 
146 /* WEP stuff */
147 #define NUM_WEPKEYS 4
148 #define MAX_KEYLEN 32
149 
150 #define HOSTWEP_DEFAULTKEY_MASK (BIT(1)|BIT(0))
151 #define HOSTWEP_SHAREDKEY BIT(3)
152 #define HOSTWEP_DECRYPT BIT(4)
153 #define HOSTWEP_ENCRYPT BIT(5)
154 #define HOSTWEP_PRIVACYINVOKED BIT(6)
155 #define HOSTWEP_EXCLUDEUNENCRYPTED BIT(7)
156 
157 extern int wlan_watchdog;
158 extern int wlan_wext_write;
159 
160 /* WLAN device type */
161 typedef struct wlandevice {
162  struct wlandevice *next; /* link for list of devices */
163  void *priv; /* private data for MSD */
164 
165  /* Subsystem State */
166  char name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev() */
167  char *nsdname;
168 
169  u32 state; /* Device I/F state (open/closed) */
170  u32 msdstate; /* state of underlying driver */
171  u32 hwremoved; /* Has the hw been yanked out? */
172 
173  /* Hardware config */
174  unsigned int irq;
175  unsigned int iobase;
176  unsigned int membase;
177  u32 nsdcaps; /* NSD Capabilities flags */
178 
179  /* Config vars */
180  unsigned int ethconv;
181 
182  /* device methods (init by MSD, used by p80211 */
183  int (*open) (struct wlandevice *wlandev);
184  int (*close) (struct wlandevice *wlandev);
185  void (*reset) (struct wlandevice *wlandev);
186  int (*txframe) (struct wlandevice *wlandev, struct sk_buff *skb,
187  union p80211_hdr *p80211_hdr,
188  struct p80211_metawep *p80211_wep);
189  int (*mlmerequest) (struct wlandevice *wlandev, struct p80211msg *msg);
190  int (*set_multicast_list) (struct wlandevice *wlandev,
191  netdevice_t *dev);
192  void (*tx_timeout) (struct wlandevice *wlandev);
193 
194  /* 802.11 State */
195  u8 bssid[WLAN_BSSID_LEN];
196  p80211pstr32_t ssid;
197  u32 macmode;
198  int linkstatus;
199 
200  /* WEP State */
201  u8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
202  u8 wep_keylens[NUM_WEPKEYS];
203  int hostwep;
204 
205  /* Request/Confirm i/f state (used by p80211) */
206  unsigned long request_pending; /* flag, access atomically */
207 
208  /* netlink socket */
209  /* queue for indications waiting for cmd completion */
210  /* Linux netdevice and support */
211  netdevice_t *netdev; /* ptr to linux netdevice */
212  struct net_device_stats linux_stats;
213 
214  /* Rx bottom half */
215  struct tasklet_struct rx_bh;
216 
217  struct sk_buff_head nsd_rxq;
218 
219  /* 802.11 device statistics */
220  struct p80211_frmrx_t rx;
221 
222  struct iw_statistics wstats;
223 
224  /* jkriegl: iwspy fields */
225  u8 spy_number;
226  char spy_address[IW_MAX_SPY][ETH_ALEN];
227  struct iw_quality spy_stat[IW_MAX_SPY];
228 } wlandevice_t;
229 
230 /* WEP stuff */
231 int wep_change_key(wlandevice_t *wlandev, int keynum, u8 *key, int keylen);
232 int wep_decrypt(wlandevice_t *wlandev, u8 *buf, u32 len, int key_override,
233  u8 *iv, u8 *icv);
234 int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum,
235  u8 *iv, u8 *icv);
236 
237 int wlan_setup(wlandevice_t *wlandev, struct device *physdev);
238 void wlan_unsetup(wlandevice_t *wlandev);
239 int register_wlandev(wlandevice_t *wlandev);
240 int unregister_wlandev(wlandevice_t *wlandev);
241 void p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
242 void p80211netdev_hwremoved(wlandevice_t *wlandev);
243 #endif
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