1/* SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) */
2/*
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 * --------------------------------------------------------------------
12 *
13 * Inquiries regarding the linux-wlan Open Source project can be
14 * made directly to:
15 *
16 * AbsoluteValue Systems Inc.
17 * info@linux-wlan.com
18 * http://www.linux-wlan.com
19 *
20 * --------------------------------------------------------------------
21 *
22 * Portions of the development of this software were funded by
23 * Intersil Corporation as part of PRISM(R) chipset product development.
24 *
25 * --------------------------------------------------------------------
26 *
27 * This file declares the structure type that represents each wlan
28 * interface.
29 *
30 * --------------------------------------------------------------------
31 */
32
33#ifndef _LINUX_P80211NETDEV_H
34#define _LINUX_P80211NETDEV_H
35
36#include <linux/interrupt.h>
37#include <linux/wireless.h>
38#include <linux/netdevice.h>
39
40#define WLAN_RELEASE "0.3.0-staging"
41
42#define WLAN_DEVICE_CLOSED 0
43#define WLAN_DEVICE_OPEN 1
44
45#define WLAN_MACMODE_NONE 0
46#define WLAN_MACMODE_IBSS_STA 1
47#define WLAN_MACMODE_ESS_STA 2
48#define WLAN_MACMODE_ESS_AP 3
49
50/* MSD States */
51#define WLAN_MSD_HWPRESENT_PENDING 1
52#define WLAN_MSD_HWFAIL 2
53#define WLAN_MSD_HWPRESENT 3
54#define WLAN_MSD_FWLOAD_PENDING 4
55#define WLAN_MSD_FWLOAD 5
56#define WLAN_MSD_RUNNING_PENDING 6
57#define WLAN_MSD_RUNNING 7
58
59#ifndef ETH_P_ECONET
60#define ETH_P_ECONET 0x0018 /* needed for 2.2.x kernels */
61#endif
62
63#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
64
65#ifndef ARPHRD_IEEE80211
66#define ARPHRD_IEEE80211 801 /* kernel 2.4.6 */
67#endif
68
69#ifndef ARPHRD_IEEE80211_PRISM /* kernel 2.4.18 */
70#define ARPHRD_IEEE80211_PRISM 802
71#endif
72
73/*--- NSD Capabilities Flags ------------------------------*/
74#define P80211_NSDCAP_HARDWAREWEP 0x01 /* hardware wep engine */
75#define P80211_NSDCAP_SHORT_PREAMBLE 0x10 /* hardware supports */
76#define P80211_NSDCAP_HWFRAGMENT 0x80 /* nsd handles frag/defrag */
77#define P80211_NSDCAP_AUTOJOIN 0x100 /* nsd does autojoin */
78#define P80211_NSDCAP_NOSCAN 0x200 /* nsd can scan */
79
80/* Received frame statistics */
81struct p80211_frmrx {
82 u32 mgmt;
83 u32 assocreq;
84 u32 assocresp;
85 u32 reassocreq;
86 u32 reassocresp;
87 u32 probereq;
88 u32 proberesp;
89 u32 beacon;
90 u32 atim;
91 u32 disassoc;
92 u32 authen;
93 u32 deauthen;
94 u32 mgmt_unknown;
95 u32 ctl;
96 u32 pspoll;
97 u32 rts;
98 u32 cts;
99 u32 ack;
100 u32 cfend;
101 u32 cfendcfack;
102 u32 ctl_unknown;
103 u32 data;
104 u32 dataonly;
105 u32 data_cfack;
106 u32 data_cfpoll;
107 u32 data__cfack_cfpoll;
108 u32 null;
109 u32 cfack;
110 u32 cfpoll;
111 u32 cfack_cfpoll;
112 u32 data_unknown;
113 u32 decrypt;
114 u32 decrypt_err;
115};
116
117/* WEP stuff */
118#define NUM_WEPKEYS 4
119#define MAX_KEYLEN 32
120
121#define HOSTWEP_DEFAULTKEY_MASK GENMASK(1, 0)
122#define HOSTWEP_SHAREDKEY BIT(3)
123#define HOSTWEP_DECRYPT BIT(4)
124#define HOSTWEP_ENCRYPT BIT(5)
125#define HOSTWEP_PRIVACYINVOKED BIT(6)
126#define HOSTWEP_EXCLUDEUNENCRYPTED BIT(7)
127
128extern int wlan_watchdog;
129extern int wlan_wext_write;
130
131/* WLAN device type */
132struct wlandevice {
133 void *priv; /* private data for MSD */
134
135 /* Subsystem State */
136 char name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev() */
137 char *nsdname;
138
139 u32 state; /* Device I/F state (open/closed) */
140 u32 msdstate; /* state of underlying driver */
141 u32 hwremoved; /* Has the hw been yanked out? */
142
143 /* Hardware config */
144 unsigned int irq;
145 unsigned int iobase;
146 unsigned int membase;
147 u32 nsdcaps; /* NSD Capabilities flags */
148
149 /* Config vars */
150 unsigned int ethconv;
151
152 /* device methods (init by MSD, used by p80211 */
153 int (*open)(struct wlandevice *wlandev);
154 int (*close)(struct wlandevice *wlandev);
155 void (*reset)(struct wlandevice *wlandev);
156 int (*txframe)(struct wlandevice *wlandev, struct sk_buff *skb,
157 struct p80211_hdr *p80211_hdr,
158 struct p80211_metawep *p80211_wep);
159 int (*mlmerequest)(struct wlandevice *wlandev, struct p80211msg *msg);
160 int (*set_multicast_list)(struct wlandevice *wlandev,
161 struct net_device *dev);
162 void (*tx_timeout)(struct wlandevice *wlandev);
163
164 /* 802.11 State */
165 u8 bssid[WLAN_BSSID_LEN];
166 struct p80211pstr32 ssid;
167 u32 macmode;
168 int linkstatus;
169
170 /* WEP State */
171 u8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
172 u8 wep_keylens[NUM_WEPKEYS];
173 int hostwep;
174
175 /* Request/Confirm i/f state (used by p80211) */
176 unsigned long request_pending; /* flag, access atomically */
177
178 /* netlink socket */
179 /* queue for indications waiting for cmd completion */
180 /* Linux netdevice and support */
181 struct net_device *netdev; /* ptr to linux netdevice */
182
183 /* Rx bottom half */
184 struct tasklet_struct rx_bh;
185
186 struct sk_buff_head nsd_rxq;
187
188 /* 802.11 device statistics */
189 struct p80211_frmrx rx;
190
191 struct iw_statistics wstats;
192
193 /* jkriegl: iwspy fields */
194 u8 spy_number;
195 char spy_address[IW_MAX_SPY][ETH_ALEN];
196 struct iw_quality spy_stat[IW_MAX_SPY];
197};
198
199/* WEP stuff */
200int wep_change_key(struct wlandevice *wlandev, int keynum, u8 *key, int keylen);
201int wep_decrypt(struct wlandevice *wlandev, u8 *buf, u32 len, int key_override,
202 u8 *iv, u8 *icv);
203int wep_encrypt(struct wlandevice *wlandev, u8 *buf, u8 *dst, u32 len,
204 int keynum, u8 *iv, u8 *icv);
205
206int wlan_setup(struct wlandevice *wlandev, struct device *physdev);
207void wlan_unsetup(struct wlandevice *wlandev);
208int register_wlandev(struct wlandevice *wlandev);
209int unregister_wlandev(struct wlandevice *wlandev);
210void p80211netdev_rx(struct wlandevice *wlandev, struct sk_buff *skb);
211void p80211netdev_hwremoved(struct wlandevice *wlandev);
212#endif
213

source code of linux/drivers/staging/wlan-ng/p80211netdev.h