2005-05-12 20:48:20 -06:00
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/******************************************************************************
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2005-09-21 10:58:43 -06:00
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Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
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2005-05-12 20:48:20 -06:00
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Portions of this file are based on the WEP enablement code provided by the
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Host AP project hostap-drivers v0.1.3
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Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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2007-03-24 18:15:30 -06:00
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<j@w1.fi>
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Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
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2005-05-12 20:48:20 -06:00
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This program is free software; you can redistribute it and/or modify it
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under the terms of version 2 of the GNU General Public License as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59
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Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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The full GNU General Public License is included in this distribution in the
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file called LICENSE.
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Contact Information:
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James P. Ketrenos <ipw2100-admin@linux.intel.com>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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******************************************************************************/
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2005-09-06 22:27:54 -06:00
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2005-05-12 20:48:20 -06:00
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#include <linux/kmod.h>
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#include <linux/module.h>
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2005-09-21 10:54:07 -06:00
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#include <linux/jiffies.h>
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2005-05-12 20:48:20 -06:00
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2008-09-30 18:59:05 -06:00
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#include <net/lib80211.h>
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2005-05-12 20:48:20 -06:00
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#include <net/ieee80211.h>
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2005-09-06 22:27:54 -06:00
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#include <linux/wireless.h>
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2005-05-12 20:48:20 -06:00
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static const char *ieee80211_modes[] = {
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"?", "a", "b", "ab", "g", "ag", "bg", "abg"
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};
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#define MAX_CUSTOM_LEN 64
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2006-03-03 15:21:55 -07:00
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static char *ieee80211_translate_scan(struct ieee80211_device *ieee,
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2008-06-16 19:50:49 -06:00
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char *start, char *stop,
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struct ieee80211_network *network,
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struct iw_request_info *info)
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2005-05-12 20:48:20 -06:00
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{
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char custom[MAX_CUSTOM_LEN];
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char *p;
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struct iw_event iwe;
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int i, j;
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2006-04-13 03:17:26 -06:00
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char *current_val; /* For rates */
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u8 rate;
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2005-05-12 20:48:20 -06:00
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/* First entry *MUST* be the AP MAC address */
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iwe.cmd = SIOCGIWAP;
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iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
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memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
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2005-05-12 20:48:20 -06:00
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/* Remaining entries will be displayed in the order we provide them */
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/* Add the ESSID */
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iwe.cmd = SIOCGIWESSID;
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iwe.u.data.flags = 1;
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2008-09-30 15:17:26 -06:00
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iwe.u.data.length = min(network->ssid_len, (u8) 32);
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start = iwe_stream_add_point(info, start, stop,
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&iwe, network->ssid);
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2005-05-12 20:48:20 -06:00
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/* Add the protocol name */
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iwe.cmd = SIOCGIWNAME;
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2005-09-06 22:48:31 -06:00
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snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s",
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ieee80211_modes[network->mode]);
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN);
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2005-05-12 20:48:20 -06:00
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2005-09-06 22:48:31 -06:00
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/* Add mode */
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iwe.cmd = SIOCGIWMODE;
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if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
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2005-08-14 22:32:15 -06:00
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if (network->capability & WLAN_CAPABILITY_ESS)
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2005-05-12 20:48:20 -06:00
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iwe.u.mode = IW_MODE_MASTER;
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else
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iwe.u.mode = IW_MODE_ADHOC;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_event(info, start, stop,
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&iwe, IW_EV_UINT_LEN);
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2005-05-12 20:48:20 -06:00
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}
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2007-04-21 16:56:43 -06:00
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/* Add channel and frequency */
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2007-07-10 14:51:14 -06:00
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/* Note : userspace automatically computes channel using iwrange */
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2005-05-12 20:48:20 -06:00
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iwe.cmd = SIOCGIWFREQ;
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2007-04-21 16:56:43 -06:00
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iwe.u.freq.m = ieee80211_channel_to_freq(ieee, network->channel);
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iwe.u.freq.e = 6;
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2007-07-10 14:51:14 -06:00
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iwe.u.freq.i = 0;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
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2007-04-21 16:56:43 -06:00
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2005-05-12 20:48:20 -06:00
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/* Add encryption capability */
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iwe.cmd = SIOCGIWENCODE;
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if (network->capability & WLAN_CAPABILITY_PRIVACY)
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iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
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else
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iwe.u.data.flags = IW_ENCODE_DISABLED;
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iwe.u.data.length = 0;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop,
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&iwe, network->ssid);
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2005-05-12 20:48:20 -06:00
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/* Add basic and extended rates */
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2006-04-13 03:17:26 -06:00
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/* Rate : stuffing multiple values in a single event require a bit
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* more of magic - Jean II */
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2008-06-16 19:50:49 -06:00
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current_val = start + iwe_stream_lcp_len(info);
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2006-04-13 03:17:26 -06:00
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iwe.cmd = SIOCGIWRATE;
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/* Those two flags are ignored... */
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iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
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2005-09-06 22:48:31 -06:00
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for (i = 0, j = 0; i < network->rates_len;) {
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2005-05-12 20:48:20 -06:00
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if (j < network->rates_ex_len &&
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((network->rates_ex[j] & 0x7F) <
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(network->rates[i] & 0x7F)))
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rate = network->rates_ex[j++] & 0x7F;
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else
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rate = network->rates[i++] & 0x7F;
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2006-04-13 03:17:26 -06:00
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/* Bit rate given in 500 kb/s units (+ 0x80) */
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iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
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/* Add new value to event */
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2008-06-16 19:50:49 -06:00
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current_val = iwe_stream_add_value(info, start, current_val,
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stop, &iwe, IW_EV_PARAM_LEN);
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2005-05-12 20:48:20 -06:00
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}
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for (; j < network->rates_ex_len; j++) {
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rate = network->rates_ex[j] & 0x7F;
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2006-04-13 03:17:26 -06:00
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/* Bit rate given in 500 kb/s units (+ 0x80) */
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iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
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/* Add new value to event */
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2008-06-16 19:50:49 -06:00
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current_val = iwe_stream_add_value(info, start, current_val,
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stop, &iwe, IW_EV_PARAM_LEN);
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2005-05-12 20:48:20 -06:00
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}
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2006-04-13 03:17:26 -06:00
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/* Check if we added any rate */
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2008-06-16 19:50:49 -06:00
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if ((current_val - start) > iwe_stream_lcp_len(info))
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2006-04-13 03:17:26 -06:00
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start = current_val;
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2005-05-12 20:48:20 -06:00
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/* Add quality statistics */
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iwe.cmd = IWEVQUAL;
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2005-09-13 16:27:19 -06:00
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iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
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IW_QUAL_NOISE_UPDATED;
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if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) {
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iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID |
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IW_QUAL_LEVEL_INVALID;
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iwe.u.qual.qual = 0;
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} else {
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2005-10-10 11:16:53 -06:00
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if (ieee->perfect_rssi == ieee->worst_rssi)
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iwe.u.qual.qual = 100;
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else
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iwe.u.qual.qual =
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(100 *
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(ieee->perfect_rssi - ieee->worst_rssi) *
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(ieee->perfect_rssi - ieee->worst_rssi) -
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(ieee->perfect_rssi - network->stats.rssi) *
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(15 * (ieee->perfect_rssi - ieee->worst_rssi) +
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2005-10-24 09:20:53 -06:00
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62 * (ieee->perfect_rssi -
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network->stats.rssi))) /
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((ieee->perfect_rssi -
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ieee->worst_rssi) * (ieee->perfect_rssi -
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ieee->worst_rssi));
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2005-09-13 16:27:19 -06:00
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if (iwe.u.qual.qual > 100)
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iwe.u.qual.qual = 100;
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else if (iwe.u.qual.qual < 1)
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iwe.u.qual.qual = 0;
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}
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if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) {
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2005-05-12 20:48:20 -06:00
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iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
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2005-09-13 16:27:19 -06:00
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iwe.u.qual.noise = 0;
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} else {
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iwe.u.qual.noise = network->stats.noise;
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}
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2005-05-12 20:48:20 -06:00
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2006-01-19 01:21:54 -07:00
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if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL)) {
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iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
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iwe.u.qual.level = 0;
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} else {
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iwe.u.qual.level = network->stats.signal;
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}
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
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2005-05-12 20:48:20 -06:00
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iwe.cmd = IWEVCUSTOM;
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p = custom;
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iwe.u.data.length = p - custom;
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if (iwe.u.data.length)
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop, &iwe, custom);
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2005-05-12 20:48:20 -06:00
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2006-02-12 22:37:03 -07:00
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memset(&iwe, 0, sizeof(iwe));
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2005-09-21 10:53:43 -06:00
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if (network->wpa_ie_len) {
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2006-02-12 22:37:03 -07:00
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char buf[MAX_WPA_IE_LEN];
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memcpy(buf, network->wpa_ie, network->wpa_ie_len);
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iwe.cmd = IWEVGENIE;
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iwe.u.data.length = network->wpa_ie_len;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop, &iwe, buf);
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2005-05-12 20:48:20 -06:00
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}
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2006-02-12 22:37:03 -07:00
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memset(&iwe, 0, sizeof(iwe));
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2005-09-21 10:53:43 -06:00
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if (network->rsn_ie_len) {
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2006-02-12 22:37:03 -07:00
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char buf[MAX_WPA_IE_LEN];
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memcpy(buf, network->rsn_ie, network->rsn_ie_len);
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iwe.cmd = IWEVGENIE;
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iwe.u.data.length = network->rsn_ie_len;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop, &iwe, buf);
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2005-05-12 20:48:20 -06:00
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}
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/* Add EXTRA: Age to display seconds since last beacon/probe response
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* for given network. */
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iwe.cmd = IWEVCUSTOM;
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p = custom;
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p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
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2005-09-21 10:54:07 -06:00
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" Last beacon: %dms ago",
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jiffies_to_msecs(jiffies - network->last_scanned));
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2005-05-12 20:48:20 -06:00
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iwe.u.data.length = p - custom;
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if (iwe.u.data.length)
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop, &iwe, custom);
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2005-05-12 20:48:20 -06:00
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2006-01-19 01:21:54 -07:00
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/* Add spectrum management information */
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iwe.cmd = -1;
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p = custom;
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p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: ");
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if (ieee80211_get_channel_flags(ieee, network->channel) &
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IEEE80211_CH_INVALID) {
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iwe.cmd = IWEVCUSTOM;
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p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID ");
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}
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if (ieee80211_get_channel_flags(ieee, network->channel) &
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IEEE80211_CH_RADAR_DETECT) {
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iwe.cmd = IWEVCUSTOM;
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p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS ");
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}
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if (iwe.cmd == IWEVCUSTOM) {
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iwe.u.data.length = p - custom;
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2008-06-16 19:50:49 -06:00
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start = iwe_stream_add_point(info, start, stop, &iwe, custom);
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2006-01-19 01:21:54 -07:00
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}
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2005-05-12 20:48:20 -06:00
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return start;
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}
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2006-01-19 01:20:59 -07:00
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#define SCAN_ITEM_SIZE 128
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2005-05-12 20:48:20 -06:00
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int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
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struct iw_request_info *info,
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union iwreq_data *wrqu, char *extra)
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{
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struct ieee80211_network *network;
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unsigned long flags;
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2006-01-19 01:20:59 -07:00
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int err = 0;
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2005-05-12 20:48:20 -06:00
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char *ev = extra;
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2006-01-19 01:20:59 -07:00
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char *stop = ev + wrqu->data.length;
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2005-05-12 20:48:20 -06:00
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int i = 0;
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2008-09-30 18:59:05 -06:00
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DECLARE_SSID_BUF(ssid);
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2005-05-12 20:48:20 -06:00
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IEEE80211_DEBUG_WX("Getting scan\n");
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spin_lock_irqsave(&ieee->lock, flags);
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list_for_each_entry(network, &ieee->network_list, list) {
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i++;
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2006-01-19 01:20:59 -07:00
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if (stop - ev < SCAN_ITEM_SIZE) {
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err = -E2BIG;
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break;
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}
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2005-05-12 20:48:20 -06:00
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if (ieee->scan_age == 0 ||
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time_after(network->last_scanned + ieee->scan_age, jiffies))
|
2008-06-16 19:50:49 -06:00
|
|
|
ev = ieee80211_translate_scan(ieee, ev, stop, network,
|
|
|
|
info);
|
2005-05-12 20:48:20 -06:00
|
|
|
else
|
2005-09-06 22:48:31 -06:00
|
|
|
IEEE80211_DEBUG_SCAN("Not showing network '%s ("
|
2008-10-27 16:59:26 -06:00
|
|
|
"%pM)' due to age (%dms).\n",
|
2008-09-30 18:59:05 -06:00
|
|
|
print_ssid(ssid, network->ssid,
|
2008-09-24 16:13:14 -06:00
|
|
|
network->ssid_len),
|
2008-10-27 16:59:26 -06:00
|
|
|
network->bssid,
|
2005-09-21 10:54:07 -06:00
|
|
|
jiffies_to_msecs(jiffies -
|
|
|
|
network->
|
|
|
|
last_scanned));
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
|
|
|
|
2005-09-06 22:48:31 -06:00
|
|
|
wrqu->data.length = ev - extra;
|
2005-05-12 20:48:20 -06:00
|
|
|
wrqu->data.flags = 0;
|
|
|
|
|
|
|
|
IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i);
|
|
|
|
|
2006-01-19 01:20:59 -07:00
|
|
|
return err;
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
|
|
|
|
struct iw_request_info *info,
|
|
|
|
union iwreq_data *wrqu, char *keybuf)
|
|
|
|
{
|
|
|
|
struct iw_point *erq = &(wrqu->encoding);
|
|
|
|
struct net_device *dev = ieee->dev;
|
|
|
|
struct ieee80211_security sec = {
|
|
|
|
.flags = 0
|
|
|
|
};
|
|
|
|
int i, key, key_provided, len;
|
2008-10-29 09:35:05 -06:00
|
|
|
struct lib80211_crypt_data **crypt;
|
2005-12-31 03:35:20 -07:00
|
|
|
int host_crypto = ieee->host_encrypt || ieee->host_decrypt || ieee->host_build_iv;
|
2008-09-30 18:59:05 -06:00
|
|
|
DECLARE_SSID_BUF(ssid);
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
IEEE80211_DEBUG_WX("SET_ENCODE\n");
|
|
|
|
|
|
|
|
key = erq->flags & IW_ENCODE_INDEX;
|
|
|
|
if (key) {
|
|
|
|
if (key > WEP_KEYS)
|
|
|
|
return -EINVAL;
|
|
|
|
key--;
|
|
|
|
key_provided = 1;
|
|
|
|
} else {
|
|
|
|
key_provided = 0;
|
2008-10-29 09:35:05 -06:00
|
|
|
key = ieee->crypt_info.tx_keyidx;
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
|
|
|
|
"provided" : "default");
|
|
|
|
|
2008-10-29 09:35:05 -06:00
|
|
|
crypt = &ieee->crypt_info.crypt[key];
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
if (erq->flags & IW_ENCODE_DISABLED) {
|
|
|
|
if (key_provided && *crypt) {
|
|
|
|
IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
|
|
|
|
key);
|
2008-10-29 09:35:05 -06:00
|
|
|
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
|
2005-05-12 20:48:20 -06:00
|
|
|
} else
|
|
|
|
IEEE80211_DEBUG_WX("Disabling encryption.\n");
|
|
|
|
|
|
|
|
/* Check all the keys to see if any are still configured,
|
|
|
|
* and if no key index was provided, de-init them all */
|
|
|
|
for (i = 0; i < WEP_KEYS; i++) {
|
2008-10-29 09:35:05 -06:00
|
|
|
if (ieee->crypt_info.crypt[i] != NULL) {
|
2005-05-12 20:48:20 -06:00
|
|
|
if (key_provided)
|
|
|
|
break;
|
2008-10-29 09:35:05 -06:00
|
|
|
lib80211_crypt_delayed_deinit(&ieee->crypt_info,
|
|
|
|
&ieee->crypt_info.crypt[i]);
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i == WEP_KEYS) {
|
|
|
|
sec.enabled = 0;
|
2005-09-21 10:53:54 -06:00
|
|
|
sec.encrypt = 0;
|
2005-05-12 20:48:20 -06:00
|
|
|
sec.level = SEC_LEVEL_0;
|
2005-09-21 10:54:22 -06:00
|
|
|
sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
sec.enabled = 1;
|
2005-09-21 10:53:54 -06:00
|
|
|
sec.encrypt = 1;
|
2005-09-21 10:54:22 -06:00
|
|
|
sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
if (*crypt != NULL && (*crypt)->ops != NULL &&
|
|
|
|
strcmp((*crypt)->ops->name, "WEP") != 0) {
|
|
|
|
/* changing to use WEP; deinit previously used algorithm
|
|
|
|
* on this key */
|
2008-10-29 09:35:05 -06:00
|
|
|
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
2005-09-21 10:53:54 -06:00
|
|
|
if (*crypt == NULL && host_crypto) {
|
2008-10-29 09:35:05 -06:00
|
|
|
struct lib80211_crypt_data *new_crypt;
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
/* take WEP into use */
|
2008-10-29 09:35:05 -06:00
|
|
|
new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
|
2005-05-12 20:48:20 -06:00
|
|
|
GFP_KERNEL);
|
|
|
|
if (new_crypt == NULL)
|
|
|
|
return -ENOMEM;
|
2008-10-29 09:35:05 -06:00
|
|
|
new_crypt->ops = lib80211_get_crypto_ops("WEP");
|
2005-05-12 20:48:20 -06:00
|
|
|
if (!new_crypt->ops) {
|
2008-10-29 09:35:05 -06:00
|
|
|
request_module("lib80211_crypt_wep");
|
|
|
|
new_crypt->ops = lib80211_get_crypto_ops("WEP");
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
|
2005-09-22 04:34:15 -06:00
|
|
|
new_crypt->priv = new_crypt->ops->init(key);
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
if (!new_crypt->ops || !new_crypt->priv) {
|
|
|
|
kfree(new_crypt);
|
|
|
|
new_crypt = NULL;
|
|
|
|
|
|
|
|
printk(KERN_WARNING "%s: could not initialize WEP: "
|
2008-10-29 09:35:05 -06:00
|
|
|
"load module lib80211_crypt_wep\n", dev->name);
|
2005-05-12 20:48:20 -06:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
}
|
|
|
|
*crypt = new_crypt;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If a new key was provided, set it up */
|
|
|
|
if (erq->length > 0) {
|
2008-10-29 02:43:50 -06:00
|
|
|
#ifdef CONFIG_IEEE80211_DEBUG
|
|
|
|
DECLARE_SSID_BUF(ssid);
|
|
|
|
#endif
|
|
|
|
|
2005-05-12 20:48:20 -06:00
|
|
|
len = erq->length <= 5 ? 5 : 13;
|
|
|
|
memcpy(sec.keys[key], keybuf, erq->length);
|
|
|
|
if (len > erq->length)
|
|
|
|
memset(sec.keys[key] + erq->length, 0,
|
|
|
|
len - erq->length);
|
|
|
|
IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
|
2008-09-30 18:59:05 -06:00
|
|
|
key, print_ssid(ssid, sec.keys[key], len),
|
2005-05-12 20:48:20 -06:00
|
|
|
erq->length, len);
|
|
|
|
sec.key_sizes[key] = len;
|
2005-09-21 10:53:54 -06:00
|
|
|
if (*crypt)
|
|
|
|
(*crypt)->ops->set_key(sec.keys[key], len, NULL,
|
|
|
|
(*crypt)->priv);
|
2005-05-12 20:48:20 -06:00
|
|
|
sec.flags |= (1 << key);
|
|
|
|
/* This ensures a key will be activated if no key is
|
2007-10-19 15:22:55 -06:00
|
|
|
* explicitly set */
|
2005-05-12 20:48:20 -06:00
|
|
|
if (key == sec.active_key)
|
|
|
|
sec.flags |= SEC_ACTIVE_KEY;
|
2005-09-21 10:53:54 -06:00
|
|
|
|
2005-05-12 20:48:20 -06:00
|
|
|
} else {
|
2005-09-21 10:53:54 -06:00
|
|
|
if (host_crypto) {
|
|
|
|
len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
|
|
|
|
NULL, (*crypt)->priv);
|
|
|
|
if (len == 0) {
|
|
|
|
/* Set a default key of all 0 */
|
|
|
|
IEEE80211_DEBUG_WX("Setting key %d to all "
|
|
|
|
"zero.\n", key);
|
|
|
|
memset(sec.keys[key], 0, 13);
|
|
|
|
(*crypt)->ops->set_key(sec.keys[key], 13, NULL,
|
|
|
|
(*crypt)->priv);
|
|
|
|
sec.key_sizes[key] = 13;
|
|
|
|
sec.flags |= (1 << key);
|
|
|
|
}
|
2005-05-12 20:48:20 -06:00
|
|
|
}
|
|
|
|
/* No key data - just set the default TX key index */
|
|
|
|
if (key_provided) {
|
2005-09-21 10:53:54 -06:00
|
|
|
IEEE80211_DEBUG_WX("Setting key %d to default Tx "
|
|
|
|
"key.\n", key);
|
2008-10-29 09:35:05 -06:00
|
|
|
ieee->crypt_info.tx_keyidx = key;
|
2005-05-12 20:48:20 -06:00
|
|
|
sec.active_key = key;
|
|
|
|
sec.flags |= SEC_ACTIVE_KEY;
|
|
|
|
}
|
|
|
|
}
|
2005-09-21 10:58:38 -06:00
|
|
|
if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
|
|
|
|
ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
|
|
|
|
sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
|
|
|
|
WLAN_AUTH_SHARED_KEY;
|
|
|
|
sec.flags |= SEC_AUTH_MODE;
|
|
|
|
IEEE80211_DEBUG_WX("Auth: %s\n",
|
|
|
|
sec.auth_mode == WLAN_AUTH_OPEN ?
|
|
|
|
"OPEN" : "SHARED KEY");
|
|
|
|
}
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
/* For now we just support WEP, so only set that security level...
|
|
|
|
* TODO: When WPA is added this is one place that needs to change */
|
|
|
|
sec.flags |= SEC_LEVEL;
|
2005-09-06 22:48:31 -06:00
|
|
|
sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
|
2005-09-21 10:54:30 -06:00
|
|
|
sec.encode_alg[key] = SEC_ALG_WEP;
|
2005-05-12 20:48:20 -06:00
|
|
|
|
2005-09-21 10:54:22 -06:00
|
|
|
done:
|
2005-05-12 20:48:20 -06:00
|
|
|
if (ieee->set_security)
|
|
|
|
ieee->set_security(dev, &sec);
|
|
|
|
|
|
|
|
/* Do not reset port if card is in Managed mode since resetting will
|
|
|
|
* generate new IEEE 802.11 authentication which may end up in looping
|
|
|
|
* with IEEE 802.1X. If your hardware requires a reset after WEP
|
|
|
|
* configuration (for example... Prism2), implement the reset_port in
|
|
|
|
* the callbacks structures used to initialize the 802.11 stack. */
|
|
|
|
if (ieee->reset_on_keychange &&
|
|
|
|
ieee->iw_mode != IW_MODE_INFRA &&
|
|
|
|
ieee->reset_port && ieee->reset_port(dev)) {
|
|
|
|
printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
|
|
|
|
struct iw_request_info *info,
|
|
|
|
union iwreq_data *wrqu, char *keybuf)
|
|
|
|
{
|
|
|
|
struct iw_point *erq = &(wrqu->encoding);
|
|
|
|
int len, key;
|
2008-10-29 09:35:05 -06:00
|
|
|
struct lib80211_crypt_data *crypt;
|
2005-09-21 10:53:54 -06:00
|
|
|
struct ieee80211_security *sec = &ieee->sec;
|
2005-05-12 20:48:20 -06:00
|
|
|
|
|
|
|
IEEE80211_DEBUG_WX("GET_ENCODE\n");
|
|
|
|
|
|
|
|
key = erq->flags & IW_ENCODE_INDEX;
|
|
|
|
if (key) {
|
|
|
|
if (key > WEP_KEYS)
|
|
|
|
return -EINVAL;
|
|
|
|
key--;
|
|
|
|
} else
|
2008-10-29 09:35:05 -06:00
|
|
|
key = ieee->crypt_info.tx_keyidx;
|
2005-05-12 20:48:20 -06:00
|
|
|
|
2008-10-29 09:35:05 -06:00
|
|
|
crypt = ieee->crypt_info.crypt[key];
|
2005-05-12 20:48:20 -06:00
|
|
|
erq->flags = key + 1;
|
|
|
|
|
2005-09-21 10:53:54 -06:00
|
|
|
if (!sec->enabled) {
|
2005-05-12 20:48:20 -06:00
|
|
|
erq->length = 0;
|
|
|
|
erq->flags |= IW_ENCODE_DISABLED;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-09-21 10:53:54 -06:00
|
|
|
len = sec->key_sizes[key];
|
|
|
|
memcpy(keybuf, sec->keys[key], len);
|
2005-05-12 20:48:20 -06:00
|
|
|
|
2006-04-27 03:33:42 -06:00
|
|
|
erq->length = len;
|
2005-05-12 20:48:20 -06:00
|
|
|
erq->flags |= IW_ENCODE_ENABLED;
|
|
|
|
|
|
|
|
if (ieee->open_wep)
|
|
|
|
erq->flags |= IW_ENCODE_OPEN;
|
|
|
|
else
|
|
|
|
erq->flags |= IW_ENCODE_RESTRICTED;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2005-09-21 10:54:30 -06:00
|
|
|
int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
|
|
|
|
struct iw_request_info *info,
|
|
|
|
union iwreq_data *wrqu, char *extra)
|
|
|
|
{
|
|
|
|
struct net_device *dev = ieee->dev;
|
|
|
|
struct iw_point *encoding = &wrqu->encoding;
|
|
|
|
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
|
|
|
|
int i, idx, ret = 0;
|
2005-09-21 10:58:32 -06:00
|
|
|
int group_key = 0;
|
2005-09-21 10:54:30 -06:00
|
|
|
const char *alg, *module;
|
2008-10-29 09:35:05 -06:00
|
|
|
struct lib80211_crypto_ops *ops;
|
|
|
|
struct lib80211_crypt_data **crypt;
|
2005-09-21 10:54:30 -06:00
|
|
|
|
|
|
|
struct ieee80211_security sec = {
|
|
|
|
.flags = 0,
|
|
|
|
};
|
|
|
|
|
|
|
|
idx = encoding->flags & IW_ENCODE_INDEX;
|
|
|
|
if (idx) {
|
|
|
|
if (idx < 1 || idx > WEP_KEYS)
|
|
|
|
return -EINVAL;
|
|
|
|
idx--;
|
|
|
|
} else
|
2008-10-29 09:35:05 -06:00
|
|
|
idx = ieee->crypt_info.tx_keyidx;
|
2005-09-21 10:54:30 -06:00
|
|
|
|
2005-09-21 10:58:32 -06:00
|
|
|
if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
|
2008-10-29 09:35:05 -06:00
|
|
|
crypt = &ieee->crypt_info.crypt[idx];
|
2005-09-21 10:58:32 -06:00
|
|
|
group_key = 1;
|
|
|
|
} else {
|
2005-10-24 09:15:36 -06:00
|
|
|
/* some Cisco APs use idx>0 for unicast in dynamic WEP */
|
|
|
|
if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
|
2005-09-21 10:54:30 -06:00
|
|
|
return -EINVAL;
|
|
|
|
if (ieee->iw_mode == IW_MODE_INFRA)
|
2008-10-29 09:35:05 -06:00
|
|
|
crypt = &ieee->crypt_info.crypt[idx];
|
2005-09-21 10:54:30 -06:00
|
|
|
else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
|
|
|
|
if ((encoding->flags & IW_ENCODE_DISABLED) ||
|
|
|
|
ext->alg == IW_ENCODE_ALG_NONE) {
|
|
|
|
if (*crypt)
|
2008-10-29 09:35:05 -06:00
|
|
|
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
|
2005-09-21 10:54:30 -06:00
|
|
|
|
|
|
|
for (i = 0; i < WEP_KEYS; i++)
|
2008-10-29 09:35:05 -06:00
|
|
|
if (ieee->crypt_info.crypt[i] != NULL)
|
2005-09-21 10:54:30 -06:00
|
|
|
break;
|
|
|
|
|
|
|
|
if (i == WEP_KEYS) {
|
|
|
|
sec.enabled = 0;
|
|
|
|
sec.encrypt = 0;
|
|
|
|
sec.level = SEC_LEVEL_0;
|
|
|
|
sec.flags |= SEC_LEVEL;
|
|
|
|
}
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
sec.enabled = 1;
|
|
|
|
sec.encrypt = 1;
|
|
|
|
|
2005-09-21 10:58:32 -06:00
|
|
|
if (group_key ? !ieee->host_mc_decrypt :
|
|
|
|
!(ieee->host_encrypt || ieee->host_decrypt ||
|
|
|
|
ieee->host_encrypt_msdu))
|
2005-09-21 10:54:30 -06:00
|
|
|
goto skip_host_crypt;
|
|
|
|
|
|
|
|
switch (ext->alg) {
|
|
|
|
case IW_ENCODE_ALG_WEP:
|
|
|
|
alg = "WEP";
|
2008-10-29 09:35:05 -06:00
|
|
|
module = "lib80211_crypt_wep";
|
2005-09-21 10:54:30 -06:00
|
|
|
break;
|
|
|
|
case IW_ENCODE_ALG_TKIP:
|
|
|
|
alg = "TKIP";
|
2008-10-29 09:35:05 -06:00
|
|
|
module = "lib80211_crypt_tkip";
|
2005-09-21 10:54:30 -06:00
|
|
|
break;
|
|
|
|
case IW_ENCODE_ALG_CCMP:
|
|
|
|
alg = "CCMP";
|
2008-10-29 09:35:05 -06:00
|
|
|
module = "lib80211_crypt_ccmp";
|
2005-09-21 10:54:30 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
|
|
|
|
dev->name, ext->alg);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
2008-10-29 09:35:05 -06:00
|
|
|
ops = lib80211_get_crypto_ops(alg);
|
2005-09-21 10:54:30 -06:00
|
|
|
if (ops == NULL) {
|
|
|
|
request_module(module);
|
2008-10-29 09:35:05 -06:00
|
|
|
ops = lib80211_get_crypto_ops(alg);
|
2005-09-21 10:54:30 -06:00
|
|
|
}
|
|
|
|
if (ops == NULL) {
|
|
|
|
IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
|
|
|
|
dev->name, ext->alg);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*crypt == NULL || (*crypt)->ops != ops) {
|
2008-10-29 09:35:05 -06:00
|
|
|
struct lib80211_crypt_data *new_crypt;
|
2005-09-21 10:54:30 -06:00
|
|
|
|
2008-10-29 09:35:05 -06:00
|
|
|
lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
|
2005-09-21 10:54:30 -06:00
|
|
|
|
2006-07-21 15:51:30 -06:00
|
|
|
new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
|
2005-09-21 10:54:30 -06:00
|
|
|
if (new_crypt == NULL) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
new_crypt->ops = ops;
|
|
|
|
if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
|
2005-09-22 04:34:15 -06:00
|
|
|
new_crypt->priv = new_crypt->ops->init(idx);
|
2005-09-21 10:54:30 -06:00
|
|
|
if (new_crypt->priv == NULL) {
|
|
|
|
kfree(new_crypt);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
*crypt = new_crypt;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ext->key_len > 0 && (*crypt)->ops->set_key &&
|
|
|
|
(*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
|
|
|
|
(*crypt)->priv) < 0) {
|
|
|
|
IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
skip_host_crypt:
|
|
|
|
if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
|
2008-10-29 09:35:05 -06:00
|
|
|
ieee->crypt_info.tx_keyidx = idx;
|
2005-09-21 10:54:30 -06:00
|
|
|
sec.active_key = idx;
|
|
|
|
sec.flags |= SEC_ACTIVE_KEY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ext->alg != IW_ENCODE_ALG_NONE) {
|
|
|
|
memcpy(sec.keys[idx], ext->key, ext->key_len);
|
|
|
|
sec.key_sizes[idx] = ext->key_len;
|
|
|
|
sec.flags |= (1 << idx);
|
|
|
|
if (ext->alg == IW_ENCODE_ALG_WEP) {
|
|
|
|
sec.encode_alg[idx] = SEC_ALG_WEP;
|
|
|
|
sec.flags |= SEC_LEVEL;
|
|
|
|
sec.level = SEC_LEVEL_1;
|
|
|
|
} else if (ext->alg == IW_ENCODE_ALG_TKIP) {
|
|
|
|
sec.encode_alg[idx] = SEC_ALG_TKIP;
|
|
|
|
sec.flags |= SEC_LEVEL;
|
|
|
|
sec.level = SEC_LEVEL_2;
|
|
|
|
} else if (ext->alg == IW_ENCODE_ALG_CCMP) {
|
|
|
|
sec.encode_alg[idx] = SEC_ALG_CCMP;
|
|
|
|
sec.flags |= SEC_LEVEL;
|
|
|
|
sec.level = SEC_LEVEL_3;
|
|
|
|
}
|
2005-09-21 10:58:32 -06:00
|
|
|
/* Don't set sec level for group keys. */
|
|
|
|
if (group_key)
|
|
|
|
sec.flags &= ~SEC_LEVEL;
|
2005-09-21 10:54:30 -06:00
|
|
|
}
|
|
|
|
done:
|
|
|
|
if (ieee->set_security)
|
|
|
|
ieee->set_security(ieee->dev, &sec);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do not reset port if card is in Managed mode since resetting will
|
|
|
|
* generate new IEEE 802.11 authentication which may end up in looping
|
|
|
|
* with IEEE 802.1X. If your hardware requires a reset after WEP
|
|
|
|
* configuration (for example... Prism2), implement the reset_port in
|
|
|
|
* the callbacks structures used to initialize the 802.11 stack.
|
|
|
|
*/
|
|
|
|
if (ieee->reset_on_keychange &&
|
|
|
|
ieee->iw_mode != IW_MODE_INFRA &&
|
|
|
|
ieee->reset_port && ieee->reset_port(dev)) {
|
|
|
|
IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
|
|
|
|
struct iw_request_info *info,
|
|
|
|
union iwreq_data *wrqu, char *extra)
|
|
|
|
{
|
|
|
|
struct iw_point *encoding = &wrqu->encoding;
|
|
|
|
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
|
|
|
|
struct ieee80211_security *sec = &ieee->sec;
|
|
|
|
int idx, max_key_len;
|
|
|
|
|
|
|
|
max_key_len = encoding->length - sizeof(*ext);
|
|
|
|
if (max_key_len < 0)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
idx = encoding->flags & IW_ENCODE_INDEX;
|
|
|
|
if (idx) {
|
|
|
|
if (idx < 1 || idx > WEP_KEYS)
|
|
|
|
return -EINVAL;
|
|
|
|
idx--;
|
|
|
|
} else
|
2008-10-29 09:35:05 -06:00
|
|
|
idx = ieee->crypt_info.tx_keyidx;
|
2005-09-21 10:54:30 -06:00
|
|
|
|
2007-10-26 13:51:26 -06:00
|
|
|
if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
|
2005-10-24 09:15:36 -06:00
|
|
|
ext->alg != IW_ENCODE_ALG_WEP)
|
2005-09-21 10:54:30 -06:00
|
|
|
if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
encoding->flags = idx + 1;
|
|
|
|
memset(ext, 0, sizeof(*ext));
|
|
|
|
|
|
|
|
if (!sec->enabled) {
|
|
|
|
ext->alg = IW_ENCODE_ALG_NONE;
|
|
|
|
ext->key_len = 0;
|
|
|
|
encoding->flags |= IW_ENCODE_DISABLED;
|
|
|
|
} else {
|
|
|
|
if (sec->encode_alg[idx] == SEC_ALG_WEP)
|
|
|
|
ext->alg = IW_ENCODE_ALG_WEP;
|
|
|
|
else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
|
|
|
|
ext->alg = IW_ENCODE_ALG_TKIP;
|
|
|
|
else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
|
|
|
|
ext->alg = IW_ENCODE_ALG_CCMP;
|
|
|
|
else
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
ext->key_len = sec->key_sizes[idx];
|
|
|
|
memcpy(ext->key, sec->keys[idx], ext->key_len);
|
|
|
|
encoding->flags |= IW_ENCODE_ENABLED;
|
|
|
|
if (ext->key_len &&
|
|
|
|
(ext->alg == IW_ENCODE_ALG_TKIP ||
|
|
|
|
ext->alg == IW_ENCODE_ALG_CCMP))
|
|
|
|
ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL(ieee80211_wx_set_encodeext);
|
|
|
|
EXPORT_SYMBOL(ieee80211_wx_get_encodeext);
|
|
|
|
|
2005-05-12 20:48:20 -06:00
|
|
|
EXPORT_SYMBOL(ieee80211_wx_get_scan);
|
|
|
|
EXPORT_SYMBOL(ieee80211_wx_set_encode);
|
|
|
|
EXPORT_SYMBOL(ieee80211_wx_get_encode);
|