1 /* SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) */
2 /* p80211netdev.h
3 *
4 * WLAN net device structure and functions
5 *
6 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
7 * --------------------------------------------------------------------
8 *
9 * linux-wlan
10 *
11 * The contents of this file are subject to the Mozilla Public
12 * License Version 1.1 (the "License"); you may not use this file
13 * except in compliance with the License. You may obtain a copy of
14 * the License at http://www.mozilla.org/MPL/
15 *
16 * Software distributed under the License is distributed on an "AS
17 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
18 * implied. See the License for the specific language governing
19 * rights and limitations under the License.
20 *
21 * Alternatively, the contents of this file may be used under the
22 * terms of the GNU Public License version 2 (the "GPL"), in which
23 * case the provisions of the GPL are applicable instead of the
24 * above. If you wish to allow the use of your version of this file
25 * only under the terms of the GPL and not to allow others to use
26 * your version of this file under the MPL, indicate your decision
27 * by deleting the provisions above and replace them with the notice
28 * and other provisions required by the GPL. If you do not delete
29 * the provisions above, a recipient may use your version of this
30 * file under either the MPL or the GPL.
31 *
32 * --------------------------------------------------------------------
33 *
34 * Inquiries regarding the linux-wlan Open Source project can be
35 * made directly to:
36 *
37 * AbsoluteValue Systems Inc.
38 * info@linux-wlan.com
39 * http://www.linux-wlan.com
40 *
41 * --------------------------------------------------------------------
42 *
43 * Portions of the development of this software were funded by
44 * Intersil Corporation as part of PRISM(R) chipset product development.
45 *
46 * --------------------------------------------------------------------
47 *
48 * This file declares the structure type that represents each wlan
49 * interface.
50 *
51 * --------------------------------------------------------------------
52 */
53
54 #ifndef _LINUX_P80211NETDEV_H
55 #define _LINUX_P80211NETDEV_H
56
57 #include <linux/interrupt.h>
58 #include <linux/wireless.h>
59 #include <linux/netdevice.h>
60
61 #define WLAN_RELEASE "0.3.0-staging"
62
63 #define WLAN_DEVICE_CLOSED 0
64 #define WLAN_DEVICE_OPEN 1
65
66 #define WLAN_MACMODE_NONE 0
67 #define WLAN_MACMODE_IBSS_STA 1
68 #define WLAN_MACMODE_ESS_STA 2
69 #define WLAN_MACMODE_ESS_AP 3
70
71 /* MSD States */
72 #define WLAN_MSD_HWPRESENT_PENDING 1
73 #define WLAN_MSD_HWFAIL 2
74 #define WLAN_MSD_HWPRESENT 3
75 #define WLAN_MSD_FWLOAD_PENDING 4
76 #define WLAN_MSD_FWLOAD 5
77 #define WLAN_MSD_RUNNING_PENDING 6
78 #define WLAN_MSD_RUNNING 7
79
80 #ifndef ETH_P_ECONET
81 #define ETH_P_ECONET 0x0018 /* needed for 2.2.x kernels */
82 #endif
83
84 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
85
86 #ifndef ARPHRD_IEEE80211
87 #define ARPHRD_IEEE80211 801 /* kernel 2.4.6 */
88 #endif
89
90 #ifndef ARPHRD_IEEE80211_PRISM /* kernel 2.4.18 */
91 #define ARPHRD_IEEE80211_PRISM 802
92 #endif
93
94 /*--- NSD Capabilities Flags ------------------------------*/
95 #define P80211_NSDCAP_HARDWAREWEP 0x01 /* hardware wep engine */
96 #define P80211_NSDCAP_SHORT_PREAMBLE 0x10 /* hardware supports */
97 #define P80211_NSDCAP_HWFRAGMENT 0x80 /* nsd handles frag/defrag */
98 #define P80211_NSDCAP_AUTOJOIN 0x100 /* nsd does autojoin */
99 #define P80211_NSDCAP_NOSCAN 0x200 /* nsd can scan */
100
101 /* Received frame statistics */
102 struct p80211_frmrx {
103 u32 mgmt;
104 u32 assocreq;
105 u32 assocresp;
106 u32 reassocreq;
107 u32 reassocresp;
108 u32 probereq;
109 u32 proberesp;
110 u32 beacon;
111 u32 atim;
112 u32 disassoc;
113 u32 authen;
114 u32 deauthen;
115 u32 mgmt_unknown;
116 u32 ctl;
117 u32 pspoll;
118 u32 rts;
119 u32 cts;
120 u32 ack;
121 u32 cfend;
122 u32 cfendcfack;
123 u32 ctl_unknown;
124 u32 data;
125 u32 dataonly;
126 u32 data_cfack;
127 u32 data_cfpoll;
128 u32 data__cfack_cfpoll;
129 u32 null;
130 u32 cfack;
131 u32 cfpoll;
132 u32 cfack_cfpoll;
133 u32 data_unknown;
134 u32 decrypt;
135 u32 decrypt_err;
136 };
137
138 /* called by /proc/net/wireless */
139 struct iw_statistics *p80211wext_get_wireless_stats(struct net_device *dev);
140 /* wireless extensions' ioctls */
141 extern struct iw_handler_def p80211wext_handler_def;
142
143 /* WEP stuff */
144 #define NUM_WEPKEYS 4
145 #define MAX_KEYLEN 32
146
147 #define HOSTWEP_DEFAULTKEY_MASK GENMASK(1, 0)
148 #define HOSTWEP_SHAREDKEY BIT(3)
149 #define HOSTWEP_DECRYPT BIT(4)
150 #define HOSTWEP_ENCRYPT BIT(5)
151 #define HOSTWEP_PRIVACYINVOKED BIT(6)
152 #define HOSTWEP_EXCLUDEUNENCRYPTED BIT(7)
153
154 extern int wlan_watchdog;
155 extern int wlan_wext_write;
156
157 /* WLAN device type */
158 struct wlandevice {
159 void *priv; /* private data for MSD */
160
161 /* Subsystem State */
162 char name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev() */
163 char *nsdname;
164
165 u32 state; /* Device I/F state (open/closed) */
166 u32 msdstate; /* state of underlying driver */
167 u32 hwremoved; /* Has the hw been yanked out? */
168
169 /* Hardware config */
170 unsigned int irq;
171 unsigned int iobase;
172 unsigned int membase;
173 u32 nsdcaps; /* NSD Capabilities flags */
174
175 /* Config vars */
176 unsigned int ethconv;
177
178 /* device methods (init by MSD, used by p80211 */
179 int (*open)(struct wlandevice *wlandev);
180 int (*close)(struct wlandevice *wlandev);
181 void (*reset)(struct wlandevice *wlandev);
182 int (*txframe)(struct wlandevice *wlandev, struct sk_buff *skb,
183 union p80211_hdr *p80211_hdr,
184 struct p80211_metawep *p80211_wep);
185 int (*mlmerequest)(struct wlandevice *wlandev, struct p80211msg *msg);
186 int (*set_multicast_list)(struct wlandevice *wlandev,
187 struct net_device *dev);
188 void (*tx_timeout)(struct wlandevice *wlandev);
189
190 /* 802.11 State */
191 u8 bssid[WLAN_BSSID_LEN];
192 struct p80211pstr32 ssid;
193 u32 macmode;
194 int linkstatus;
195
196 /* WEP State */
197 u8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
198 u8 wep_keylens[NUM_WEPKEYS];
199 int hostwep;
200
201 /* Request/Confirm i/f state (used by p80211) */
202 unsigned long request_pending; /* flag, access atomically */
203
204 /* netlink socket */
205 /* queue for indications waiting for cmd completion */
206 /* Linux netdevice and support */
207 struct net_device *netdev; /* ptr to linux netdevice */
208
209 /* Rx bottom half */
210 struct tasklet_struct rx_bh;
211
212 struct sk_buff_head nsd_rxq;
213
214 /* 802.11 device statistics */
215 struct p80211_frmrx rx;
216
217 struct iw_statistics wstats;
218
219 /* jkriegl: iwspy fields */
220 u8 spy_number;
221 char spy_address[IW_MAX_SPY][ETH_ALEN];
222 struct iw_quality spy_stat[IW_MAX_SPY];
223 };
224
225 /* WEP stuff */
226 int wep_change_key(struct wlandevice *wlandev, int keynum, u8 *key, int keylen);
227 int wep_decrypt(struct wlandevice *wlandev, u8 *buf, u32 len, int key_override,
228 u8 *iv, u8 *icv);
229 int wep_encrypt(struct wlandevice *wlandev, u8 *buf, u8 *dst, u32 len,
230 int keynum, u8 *iv, u8 *icv);
231
232 int wlan_setup(struct wlandevice *wlandev, struct device *physdev);
233 void wlan_unsetup(struct wlandevice *wlandev);
234 int register_wlandev(struct wlandevice *wlandev);
235 int unregister_wlandev(struct wlandevice *wlandev);
236 void p80211netdev_rx(struct wlandevice *wlandev, struct sk_buff *skb);
237 void p80211netdev_hwremoved(struct wlandevice *wlandev);
238 #endif