drivers/staging/wlan-ng/p80211netdev.h

   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 * info@linux-wlan.com
  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 /*================================================================*/
  61 /* Constants */
  62
  63 #undef netdevice_t
  64 typedef struct net_device netdevice_t;
  65
  66 #define WLAN_RELEASE    "0.3.0-staging"
  67
  68 #define WLAN_DEVICE_CLOSED      0
  69 #define WLAN_DEVICE_OPEN        1
  70
  71 #define WLAN_MACMODE_NONE       0
  72 #define WLAN_MACMODE_IBSS_STA   1
  73 #define WLAN_MACMODE_ESS_STA    2
  74 #define WLAN_MACMODE_ESS_AP     3
  75
  76 /* MSD States */
  77 #define WLAN_MSD_HWPRESENT_PENDING      1
  78 #define WLAN_MSD_HWFAIL                 2
  79 #define WLAN_MSD_HWPRESENT              3
  80 #define WLAN_MSD_FWLOAD_PENDING         4
  81 #define WLAN_MSD_FWLOAD                 5
  82 #define WLAN_MSD_RUNNING_PENDING        6
  83 #define WLAN_MSD_RUNNING                7
  84
  85 #ifndef ETH_P_ECONET
  86 #define ETH_P_ECONET   0x0018   /* needed for 2.2.x kernels */
  87 #endif
  88
  89 #define ETH_P_80211_RAW        (ETH_P_ECONET + 1)
  90
  91 #ifndef ARPHRD_IEEE80211
  92 #define ARPHRD_IEEE80211 801    /* kernel 2.4.6 */
  93 #endif
  94
  95 #ifndef ARPHRD_IEEE80211_PRISM  /* kernel 2.4.18 */
  96 #define ARPHRD_IEEE80211_PRISM 802
  97 #endif
  98
  99 /*--- NSD Capabilities Flags ------------------------------*/
 100 #define P80211_NSDCAP_HARDWAREWEP           0x01        /* hardware wep engine */
 101 #define P80211_NSDCAP_SHORT_PREAMBLE        0x10        /* hardware supports */
 102 #define P80211_NSDCAP_HWFRAGMENT            0x80        /* nsd handles frag/defrag */
 103 #define P80211_NSDCAP_AUTOJOIN              0x100       /* nsd does autojoin */
 104 #define P80211_NSDCAP_NOSCAN                0x200       /* nsd can scan */
 105
 106 /* Received frame statistics */
 107 typedef struct p80211_frmrx_t {
 108         u32 mgmt;
 109         u32 assocreq;
 110         u32 assocresp;
 111         u32 reassocreq;
 112         u32 reassocresp;
 113         u32 probereq;
 114         u32 proberesp;
 115         u32 beacon;
 116         u32 atim;
 117         u32 disassoc;
 118         u32 authen;
 119         u32 deauthen;
 120         u32 mgmt_unknown;
 121         u32 ctl;
 122         u32 pspoll;
 123         u32 rts;
 124         u32 cts;
 125         u32 ack;
 126         u32 cfend;
 127         u32 cfendcfack;
 128         u32 ctl_unknown;
 129         u32 data;
 130         u32 dataonly;
 131         u32 data_cfack;
 132         u32 data_cfpoll;
 133         u32 data__cfack_cfpoll;
 134         u32 null;
 135         u32 cfack;
 136         u32 cfpoll;
 137         u32 cfack_cfpoll;
 138         u32 data_unknown;
 139         u32 decrypt;
 140         u32 decrypt_err;
 141 } p80211_frmrx_t;
 142
 143 /* called by /proc/net/wireless */
 144 struct iw_statistics *p80211wext_get_wireless_stats(netdevice_t * dev);
 145 /* wireless extensions' ioctls */
 146 extern struct iw_handler_def p80211wext_handler_def;
 147 int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
 148
 149 /* WEP stuff */
 150 #define NUM_WEPKEYS 4
 151 #define MAX_KEYLEN 32
 152
 153 #define HOSTWEP_DEFAULTKEY_MASK (BIT(1)|BIT(0))
 154 #define HOSTWEP_DECRYPT  BIT(4)
 155 #define HOSTWEP_ENCRYPT  BIT(5)
 156 #define HOSTWEP_PRIVACYINVOKED BIT(6)
 157 #define HOSTWEP_EXCLUDEUNENCRYPTED BIT(7)
 158
 159 extern int wlan_watchdog;
 160 extern int wlan_wext_write;
 161
 162 /* WLAN device type */
 163 typedef struct wlandevice {
 164         struct wlandevice *next;        /* link for list of devices */
 165         void *priv;             /* private data for MSD */
 166
 167         /* Subsystem State */
 168         char name[WLAN_DEVNAMELEN_MAX]; /* Dev name, from register_wlandev() */
 169         char *nsdname;
 170
 171         u32 state;              /* Device I/F state (open/closed) */
 172         u32 msdstate;           /* state of underlying driver */
 173         u32 hwremoved;          /* Has the hw been yanked out? */
 174
 175         /* Hardware config */
 176         unsigned int irq;
 177         unsigned int iobase;
 178         unsigned int membase;
 179         u32 nsdcaps;            /* NSD Capabilities flags */
 180
 181         /* Config vars */
 182         unsigned int ethconv;
 183
 184         /* device methods (init by MSD, used by p80211 */
 185         int (*open) (struct wlandevice *wlandev);
 186         int (*close) (struct wlandevice *wlandev);
 187         void (*reset) (struct wlandevice *wlandev);
 188         int (*txframe) (struct wlandevice *wlandev, struct sk_buff *skb,
 189                         p80211_hdr_t *p80211_hdr,
 190                         p80211_metawep_t *p80211_wep);
 191         int (*mlmerequest) (struct wlandevice *wlandev, p80211msg_t *msg);
 192         int (*set_multicast_list) (struct wlandevice *wlandev,
 193                                    netdevice_t *dev);
 194         void (*tx_timeout) (struct wlandevice *wlandev);
 195
 196         /* 802.11 State */
 197         u8 bssid[WLAN_BSSID_LEN];
 198         p80211pstr32_t ssid;
 199         u32 macmode;
 200         int linkstatus;
 201
 202         /* WEP State */
 203         u8 wep_keys[NUM_WEPKEYS][MAX_KEYLEN];
 204         u8 wep_keylens[NUM_WEPKEYS];
 205         int hostwep;
 206
 207         /* Request/Confirm i/f state (used by p80211) */
 208         unsigned long request_pending;  /* flag, access atomically */
 209
 210         /* netlink socket */
 211         /* queue for indications waiting for cmd completion */
 212         /* Linux netdevice and support */
 213         netdevice_t *netdev;    /* ptr to linux netdevice */
 214         struct net_device_stats linux_stats;
 215
 216         /* Rx bottom half */
 217         struct tasklet_struct rx_bh;
 218
 219         struct sk_buff_head nsd_rxq;
 220
 221         /* 802.11 device statistics */
 222         struct p80211_frmrx_t rx;
 223
 224         struct iw_statistics wstats;
 225
 226         /* jkriegl: iwspy fields */
 227         u8 spy_number;
 228         char spy_address[IW_MAX_SPY][ETH_ALEN];
 229         struct iw_quality spy_stat[IW_MAX_SPY];
 230
 231         struct mutex ioctl_lock;
 232 } wlandevice_t;
 233
 234 /* WEP stuff */
 235 int wep_change_key(wlandevice_t *wlandev, int keynum, u8 *key, int keylen);
 236 int wep_decrypt(wlandevice_t *wlandev, u8 *buf, u32 len, int key_override,
 237                 u8 *iv, u8 *icv);
 238 int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum,
 239                 u8 *iv, u8 *icv);
 240
 241 int wlan_setup(wlandevice_t *wlandev);
 242 int wlan_unsetup(wlandevice_t *wlandev);
 243 int register_wlandev(wlandevice_t *wlandev);
 244 int unregister_wlandev(wlandevice_t *wlandev);
 245 void p80211netdev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
 246 void p80211netdev_hwremoved(wlandevice_t *wlandev);
 247 void p80211_allow_ioctls(wlandevice_t *wlandev);
 248 #endif