Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | |
James Ketrenos | ebeaddc | 2005-09-21 11:58:43 -0500 | [diff] [blame] | 3 | Copyright(c) 2004-2005 Intel Corporation. All rights reserved. |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 4 | |
| 5 | Portions of this file are based on the WEP enablement code provided by the |
| 6 | Host AP project hostap-drivers v0.1.3 |
| 7 | Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen |
Jouni Malinen | 85d32e7 | 2007-03-24 17:15:30 -0700 | [diff] [blame] | 8 | <j@w1.fi> |
| 9 | Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 10 | |
| 11 | This program is free software; you can redistribute it and/or modify it |
| 12 | under the terms of version 2 of the GNU General Public License as |
| 13 | published by the Free Software Foundation. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, but WITHOUT |
| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 17 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 18 | more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License along with |
| 21 | this program; if not, write to the Free Software Foundation, Inc., 59 |
| 22 | Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 23 | |
| 24 | The full GNU General Public License is included in this distribution in the |
| 25 | file called LICENSE. |
| 26 | |
| 27 | Contact Information: |
Reinette Chatre | c1eb2c8 | 2009-08-21 13:34:26 -0700 | [diff] [blame] | 28 | Intel Linux Wireless <ilw@linux.intel.com> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 29 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | |
| 31 | ******************************************************************************/ |
Jeff Garzik | bbeec90 | 2005-09-07 00:27:54 -0400 | [diff] [blame] | 32 | |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 33 | #include <linux/hardirq.h> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 34 | #include <linux/kmod.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 35 | #include <linux/slab.h> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 36 | #include <linux/module.h> |
James Ketrenos | 42e349f | 2005-09-21 11:54:07 -0500 | [diff] [blame] | 37 | #include <linux/jiffies.h> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 38 | |
John W. Linville | 9387b7c | 2008-09-30 20:59:05 -0400 | [diff] [blame] | 39 | #include <net/lib80211.h> |
Jeff Garzik | bbeec90 | 2005-09-07 00:27:54 -0400 | [diff] [blame] | 40 | #include <linux/wireless.h> |
| 41 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 42 | #include "libipw.h" |
Dan Williams | f3734ee | 2009-02-12 12:32:55 -0500 | [diff] [blame] | 43 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 44 | static const char *libipw_modes[] = { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 45 | "?", "a", "b", "ab", "g", "ag", "bg", "abg" |
| 46 | }; |
| 47 | |
Dan Williams | c3d72b9 | 2009-02-11 13:26:06 -0500 | [diff] [blame] | 48 | static inline unsigned int elapsed_jiffies_msecs(unsigned long start) |
| 49 | { |
| 50 | unsigned long end = jiffies; |
| 51 | |
| 52 | if (end >= start) |
| 53 | return jiffies_to_msecs(end - start); |
| 54 | |
| 55 | return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1); |
| 56 | } |
| 57 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 58 | #define MAX_CUSTOM_LEN 64 |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 59 | static char *libipw_translate_scan(struct libipw_device *ieee, |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 60 | char *start, char *stop, |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 61 | struct libipw_network *network, |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 62 | struct iw_request_info *info) |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 63 | { |
| 64 | char custom[MAX_CUSTOM_LEN]; |
| 65 | char *p; |
| 66 | struct iw_event iwe; |
| 67 | int i, j; |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 68 | char *current_val; /* For rates */ |
| 69 | u8 rate; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 70 | |
| 71 | /* First entry *MUST* be the AP MAC address */ |
| 72 | iwe.cmd = SIOCGIWAP; |
| 73 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; |
| 74 | memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN); |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 75 | start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 76 | |
| 77 | /* Remaining entries will be displayed in the order we provide them */ |
| 78 | |
| 79 | /* Add the ESSID */ |
| 80 | iwe.cmd = SIOCGIWESSID; |
| 81 | iwe.u.data.flags = 1; |
John W. Linville | c5d3dce | 2008-09-30 17:17:26 -0400 | [diff] [blame] | 82 | iwe.u.data.length = min(network->ssid_len, (u8) 32); |
| 83 | start = iwe_stream_add_point(info, start, stop, |
| 84 | &iwe, network->ssid); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 85 | |
| 86 | /* Add the protocol name */ |
| 87 | iwe.cmd = SIOCGIWNAME; |
Jeff Garzik | 0edd5b4 | 2005-09-07 00:48:31 -0400 | [diff] [blame] | 88 | snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 89 | libipw_modes[network->mode]); |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 90 | start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 91 | |
Jeff Garzik | 0edd5b4 | 2005-09-07 00:48:31 -0400 | [diff] [blame] | 92 | /* Add mode */ |
| 93 | iwe.cmd = SIOCGIWMODE; |
| 94 | if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { |
Jeff Garzik | 1b5cca3 | 2005-08-15 00:32:15 -0400 | [diff] [blame] | 95 | if (network->capability & WLAN_CAPABILITY_ESS) |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 96 | iwe.u.mode = IW_MODE_MASTER; |
| 97 | else |
| 98 | iwe.u.mode = IW_MODE_ADHOC; |
| 99 | |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 100 | start = iwe_stream_add_event(info, start, stop, |
| 101 | &iwe, IW_EV_UINT_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 102 | } |
| 103 | |
Larry Finger | 93afe3d | 2007-04-21 17:56:43 -0500 | [diff] [blame] | 104 | /* Add channel and frequency */ |
Jean Tourrilhes | 90869b2 | 2007-07-10 15:51:14 -0500 | [diff] [blame] | 105 | /* Note : userspace automatically computes channel using iwrange */ |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 106 | iwe.cmd = SIOCGIWFREQ; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 107 | iwe.u.freq.m = libipw_channel_to_freq(ieee, network->channel); |
Larry Finger | 93afe3d | 2007-04-21 17:56:43 -0500 | [diff] [blame] | 108 | iwe.u.freq.e = 6; |
Jean Tourrilhes | 90869b2 | 2007-07-10 15:51:14 -0500 | [diff] [blame] | 109 | iwe.u.freq.i = 0; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 110 | start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN); |
Larry Finger | 93afe3d | 2007-04-21 17:56:43 -0500 | [diff] [blame] | 111 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 112 | /* Add encryption capability */ |
| 113 | iwe.cmd = SIOCGIWENCODE; |
| 114 | if (network->capability & WLAN_CAPABILITY_PRIVACY) |
| 115 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 116 | else |
| 117 | iwe.u.data.flags = IW_ENCODE_DISABLED; |
| 118 | iwe.u.data.length = 0; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 119 | start = iwe_stream_add_point(info, start, stop, |
| 120 | &iwe, network->ssid); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 121 | |
| 122 | /* Add basic and extended rates */ |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 123 | /* Rate : stuffing multiple values in a single event require a bit |
| 124 | * more of magic - Jean II */ |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 125 | current_val = start + iwe_stream_lcp_len(info); |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 126 | iwe.cmd = SIOCGIWRATE; |
| 127 | /* Those two flags are ignored... */ |
| 128 | iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; |
| 129 | |
Jeff Garzik | 0edd5b4 | 2005-09-07 00:48:31 -0400 | [diff] [blame] | 130 | for (i = 0, j = 0; i < network->rates_len;) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 131 | if (j < network->rates_ex_len && |
| 132 | ((network->rates_ex[j] & 0x7F) < |
| 133 | (network->rates[i] & 0x7F))) |
| 134 | rate = network->rates_ex[j++] & 0x7F; |
| 135 | else |
| 136 | rate = network->rates[i++] & 0x7F; |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 137 | /* Bit rate given in 500 kb/s units (+ 0x80) */ |
| 138 | iwe.u.bitrate.value = ((rate & 0x7f) * 500000); |
| 139 | /* Add new value to event */ |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 140 | current_val = iwe_stream_add_value(info, start, current_val, |
| 141 | stop, &iwe, IW_EV_PARAM_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 142 | } |
| 143 | for (; j < network->rates_ex_len; j++) { |
| 144 | rate = network->rates_ex[j] & 0x7F; |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 145 | /* Bit rate given in 500 kb/s units (+ 0x80) */ |
| 146 | iwe.u.bitrate.value = ((rate & 0x7f) * 500000); |
| 147 | /* Add new value to event */ |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 148 | current_val = iwe_stream_add_value(info, start, current_val, |
| 149 | stop, &iwe, IW_EV_PARAM_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 150 | } |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 151 | /* Check if we added any rate */ |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 152 | if ((current_val - start) > iwe_stream_lcp_len(info)) |
Zhu Yi | 0959304 | 2006-04-13 17:17:26 +0800 | [diff] [blame] | 153 | start = current_val; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 154 | |
| 155 | /* Add quality statistics */ |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 156 | iwe.cmd = IWEVQUAL; |
James Ketrenos | b1b508e | 2005-09-13 17:27:19 -0500 | [diff] [blame] | 157 | iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | |
| 158 | IW_QUAL_NOISE_UPDATED; |
| 159 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 160 | if (!(network->stats.mask & LIBIPW_STATMASK_RSSI)) { |
James Ketrenos | b1b508e | 2005-09-13 17:27:19 -0500 | [diff] [blame] | 161 | iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID | |
| 162 | IW_QUAL_LEVEL_INVALID; |
| 163 | iwe.u.qual.qual = 0; |
James Ketrenos | b1b508e | 2005-09-13 17:27:19 -0500 | [diff] [blame] | 164 | } else { |
Jiri Benc | 757d18f | 2005-10-10 19:16:53 +0200 | [diff] [blame] | 165 | if (ieee->perfect_rssi == ieee->worst_rssi) |
| 166 | iwe.u.qual.qual = 100; |
| 167 | else |
| 168 | iwe.u.qual.qual = |
| 169 | (100 * |
| 170 | (ieee->perfect_rssi - ieee->worst_rssi) * |
| 171 | (ieee->perfect_rssi - ieee->worst_rssi) - |
| 172 | (ieee->perfect_rssi - network->stats.rssi) * |
| 173 | (15 * (ieee->perfect_rssi - ieee->worst_rssi) + |
James Ketrenos | 81f8752 | 2005-10-24 10:20:53 -0500 | [diff] [blame] | 174 | 62 * (ieee->perfect_rssi - |
| 175 | network->stats.rssi))) / |
| 176 | ((ieee->perfect_rssi - |
| 177 | ieee->worst_rssi) * (ieee->perfect_rssi - |
| 178 | ieee->worst_rssi)); |
James Ketrenos | b1b508e | 2005-09-13 17:27:19 -0500 | [diff] [blame] | 179 | if (iwe.u.qual.qual > 100) |
| 180 | iwe.u.qual.qual = 100; |
| 181 | else if (iwe.u.qual.qual < 1) |
| 182 | iwe.u.qual.qual = 0; |
| 183 | } |
| 184 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 185 | if (!(network->stats.mask & LIBIPW_STATMASK_NOISE)) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 186 | iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; |
James Ketrenos | b1b508e | 2005-09-13 17:27:19 -0500 | [diff] [blame] | 187 | iwe.u.qual.noise = 0; |
| 188 | } else { |
| 189 | iwe.u.qual.noise = network->stats.noise; |
| 190 | } |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 191 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 192 | if (!(network->stats.mask & LIBIPW_STATMASK_SIGNAL)) { |
Zhu Yi | 7bd6436 | 2006-01-19 16:21:54 +0800 | [diff] [blame] | 193 | iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; |
| 194 | iwe.u.qual.level = 0; |
| 195 | } else { |
| 196 | iwe.u.qual.level = network->stats.signal; |
| 197 | } |
| 198 | |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 199 | start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 200 | |
| 201 | iwe.cmd = IWEVCUSTOM; |
| 202 | p = custom; |
| 203 | |
| 204 | iwe.u.data.length = p - custom; |
| 205 | if (iwe.u.data.length) |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 206 | start = iwe_stream_add_point(info, start, stop, &iwe, custom); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 207 | |
Zhu Yi | 4716808 | 2006-02-13 13:37:03 +0800 | [diff] [blame] | 208 | memset(&iwe, 0, sizeof(iwe)); |
James Ketrenos | 20d6471 | 2005-09-21 11:53:43 -0500 | [diff] [blame] | 209 | if (network->wpa_ie_len) { |
Zhu Yi | 4716808 | 2006-02-13 13:37:03 +0800 | [diff] [blame] | 210 | char buf[MAX_WPA_IE_LEN]; |
| 211 | memcpy(buf, network->wpa_ie, network->wpa_ie_len); |
| 212 | iwe.cmd = IWEVGENIE; |
| 213 | iwe.u.data.length = network->wpa_ie_len; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 214 | start = iwe_stream_add_point(info, start, stop, &iwe, buf); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 215 | } |
| 216 | |
Zhu Yi | 4716808 | 2006-02-13 13:37:03 +0800 | [diff] [blame] | 217 | memset(&iwe, 0, sizeof(iwe)); |
James Ketrenos | 20d6471 | 2005-09-21 11:53:43 -0500 | [diff] [blame] | 218 | if (network->rsn_ie_len) { |
Zhu Yi | 4716808 | 2006-02-13 13:37:03 +0800 | [diff] [blame] | 219 | char buf[MAX_WPA_IE_LEN]; |
| 220 | memcpy(buf, network->rsn_ie, network->rsn_ie_len); |
| 221 | iwe.cmd = IWEVGENIE; |
| 222 | iwe.u.data.length = network->rsn_ie_len; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 223 | start = iwe_stream_add_point(info, start, stop, &iwe, buf); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | /* Add EXTRA: Age to display seconds since last beacon/probe response |
| 227 | * for given network. */ |
| 228 | iwe.cmd = IWEVCUSTOM; |
| 229 | p = custom; |
| 230 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), |
Dan Williams | c3d72b9 | 2009-02-11 13:26:06 -0500 | [diff] [blame] | 231 | " Last beacon: %ums ago", |
| 232 | elapsed_jiffies_msecs(network->last_scanned)); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 233 | iwe.u.data.length = p - custom; |
| 234 | if (iwe.u.data.length) |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 235 | start = iwe_stream_add_point(info, start, stop, &iwe, custom); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 236 | |
Zhu Yi | 7bd6436 | 2006-01-19 16:21:54 +0800 | [diff] [blame] | 237 | /* Add spectrum management information */ |
| 238 | iwe.cmd = -1; |
| 239 | p = custom; |
| 240 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: "); |
| 241 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 242 | if (libipw_get_channel_flags(ieee, network->channel) & |
| 243 | LIBIPW_CH_INVALID) { |
Zhu Yi | 7bd6436 | 2006-01-19 16:21:54 +0800 | [diff] [blame] | 244 | iwe.cmd = IWEVCUSTOM; |
| 245 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID "); |
| 246 | } |
| 247 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 248 | if (libipw_get_channel_flags(ieee, network->channel) & |
| 249 | LIBIPW_CH_RADAR_DETECT) { |
Zhu Yi | 7bd6436 | 2006-01-19 16:21:54 +0800 | [diff] [blame] | 250 | iwe.cmd = IWEVCUSTOM; |
| 251 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS "); |
| 252 | } |
| 253 | |
| 254 | if (iwe.cmd == IWEVCUSTOM) { |
| 255 | iwe.u.data.length = p - custom; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 256 | start = iwe_stream_add_point(info, start, stop, &iwe, custom); |
Zhu Yi | 7bd6436 | 2006-01-19 16:21:54 +0800 | [diff] [blame] | 257 | } |
| 258 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 259 | return start; |
| 260 | } |
| 261 | |
Zhu Yi | 55cd94a | 2006-01-19 16:20:59 +0800 | [diff] [blame] | 262 | #define SCAN_ITEM_SIZE 128 |
| 263 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 264 | int libipw_wx_get_scan(struct libipw_device *ieee, |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 265 | struct iw_request_info *info, |
| 266 | union iwreq_data *wrqu, char *extra) |
| 267 | { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 268 | struct libipw_network *network; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 269 | unsigned long flags; |
Zhu Yi | 55cd94a | 2006-01-19 16:20:59 +0800 | [diff] [blame] | 270 | int err = 0; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 271 | |
| 272 | char *ev = extra; |
Zhu Yi | 55cd94a | 2006-01-19 16:20:59 +0800 | [diff] [blame] | 273 | char *stop = ev + wrqu->data.length; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 274 | int i = 0; |
John W. Linville | 9387b7c | 2008-09-30 20:59:05 -0400 | [diff] [blame] | 275 | DECLARE_SSID_BUF(ssid); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 276 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 277 | LIBIPW_DEBUG_WX("Getting scan\n"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 278 | |
| 279 | spin_lock_irqsave(&ieee->lock, flags); |
| 280 | |
| 281 | list_for_each_entry(network, &ieee->network_list, list) { |
| 282 | i++; |
Zhu Yi | 55cd94a | 2006-01-19 16:20:59 +0800 | [diff] [blame] | 283 | if (stop - ev < SCAN_ITEM_SIZE) { |
| 284 | err = -E2BIG; |
| 285 | break; |
| 286 | } |
| 287 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 288 | if (ieee->scan_age == 0 || |
| 289 | time_after(network->last_scanned + ieee->scan_age, jiffies)) |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 290 | ev = libipw_translate_scan(ieee, ev, stop, network, |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 291 | info); |
Dan Williams | c3d72b9 | 2009-02-11 13:26:06 -0500 | [diff] [blame] | 292 | else { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 293 | LIBIPW_DEBUG_SCAN("Not showing network '%s (" |
Dan Williams | c3d72b9 | 2009-02-11 13:26:06 -0500 | [diff] [blame] | 294 | "%pM)' due to age (%ums).\n", |
John W. Linville | 9387b7c | 2008-09-30 20:59:05 -0400 | [diff] [blame] | 295 | print_ssid(ssid, network->ssid, |
John W. Linville | 7e272fc | 2008-09-24 18:13:14 -0400 | [diff] [blame] | 296 | network->ssid_len), |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 297 | network->bssid, |
Dan Williams | c3d72b9 | 2009-02-11 13:26:06 -0500 | [diff] [blame] | 298 | elapsed_jiffies_msecs( |
| 299 | network->last_scanned)); |
| 300 | } |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | spin_unlock_irqrestore(&ieee->lock, flags); |
| 304 | |
Jeff Garzik | 0edd5b4 | 2005-09-07 00:48:31 -0400 | [diff] [blame] | 305 | wrqu->data.length = ev - extra; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 306 | wrqu->data.flags = 0; |
| 307 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 308 | LIBIPW_DEBUG_WX("exit: %d networks returned.\n", i); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 309 | |
Zhu Yi | 55cd94a | 2006-01-19 16:20:59 +0800 | [diff] [blame] | 310 | return err; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 311 | } |
| 312 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 313 | int libipw_wx_set_encode(struct libipw_device *ieee, |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 314 | struct iw_request_info *info, |
| 315 | union iwreq_data *wrqu, char *keybuf) |
| 316 | { |
| 317 | struct iw_point *erq = &(wrqu->encoding); |
| 318 | struct net_device *dev = ieee->dev; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 319 | struct libipw_security sec = { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 320 | .flags = 0 |
| 321 | }; |
| 322 | int i, key, key_provided, len; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 323 | struct lib80211_crypt_data **crypt; |
John W. Linville | 3289a83 | 2010-07-22 16:31:48 -0400 | [diff] [blame] | 324 | int host_crypto = ieee->host_encrypt || ieee->host_decrypt; |
John W. Linville | 9387b7c | 2008-09-30 20:59:05 -0400 | [diff] [blame] | 325 | DECLARE_SSID_BUF(ssid); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 326 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 327 | LIBIPW_DEBUG_WX("SET_ENCODE\n"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 328 | |
| 329 | key = erq->flags & IW_ENCODE_INDEX; |
| 330 | if (key) { |
| 331 | if (key > WEP_KEYS) |
| 332 | return -EINVAL; |
| 333 | key--; |
| 334 | key_provided = 1; |
| 335 | } else { |
| 336 | key_provided = 0; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 337 | key = ieee->crypt_info.tx_keyidx; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 338 | } |
| 339 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 340 | LIBIPW_DEBUG_WX("Key: %d [%s]\n", key, key_provided ? |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 341 | "provided" : "default"); |
| 342 | |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 343 | crypt = &ieee->crypt_info.crypt[key]; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 344 | |
| 345 | if (erq->flags & IW_ENCODE_DISABLED) { |
| 346 | if (key_provided && *crypt) { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 347 | LIBIPW_DEBUG_WX("Disabling encryption on key %d.\n", |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 348 | key); |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 349 | lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 350 | } else |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 351 | LIBIPW_DEBUG_WX("Disabling encryption.\n"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 352 | |
| 353 | /* Check all the keys to see if any are still configured, |
| 354 | * and if no key index was provided, de-init them all */ |
| 355 | for (i = 0; i < WEP_KEYS; i++) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 356 | if (ieee->crypt_info.crypt[i] != NULL) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 357 | if (key_provided) |
| 358 | break; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 359 | lib80211_crypt_delayed_deinit(&ieee->crypt_info, |
| 360 | &ieee->crypt_info.crypt[i]); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 361 | } |
| 362 | } |
| 363 | |
| 364 | if (i == WEP_KEYS) { |
| 365 | sec.enabled = 0; |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 366 | sec.encrypt = 0; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 367 | sec.level = SEC_LEVEL_0; |
James Ketrenos | 259bf1f | 2005-09-21 11:54:22 -0500 | [diff] [blame] | 368 | sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | goto done; |
| 372 | } |
| 373 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 374 | sec.enabled = 1; |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 375 | sec.encrypt = 1; |
James Ketrenos | 259bf1f | 2005-09-21 11:54:22 -0500 | [diff] [blame] | 376 | sec.flags |= SEC_ENABLED | SEC_ENCRYPT; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 377 | |
| 378 | if (*crypt != NULL && (*crypt)->ops != NULL && |
| 379 | strcmp((*crypt)->ops->name, "WEP") != 0) { |
| 380 | /* changing to use WEP; deinit previously used algorithm |
| 381 | * on this key */ |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 382 | lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 383 | } |
| 384 | |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 385 | if (*crypt == NULL && host_crypto) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 386 | struct lib80211_crypt_data *new_crypt; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 387 | |
| 388 | /* take WEP into use */ |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 389 | new_crypt = kzalloc(sizeof(struct lib80211_crypt_data), |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 390 | GFP_KERNEL); |
| 391 | if (new_crypt == NULL) |
| 392 | return -ENOMEM; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 393 | new_crypt->ops = lib80211_get_crypto_ops("WEP"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 394 | if (!new_crypt->ops) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 395 | request_module("lib80211_crypt_wep"); |
| 396 | new_crypt->ops = lib80211_get_crypto_ops("WEP"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) |
James Ketrenos | 6eb6edf | 2005-09-22 10:34:15 +0000 | [diff] [blame] | 400 | new_crypt->priv = new_crypt->ops->init(key); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 401 | |
| 402 | if (!new_crypt->ops || !new_crypt->priv) { |
| 403 | kfree(new_crypt); |
| 404 | new_crypt = NULL; |
| 405 | |
| 406 | printk(KERN_WARNING "%s: could not initialize WEP: " |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 407 | "load module lib80211_crypt_wep\n", dev->name); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 408 | return -EOPNOTSUPP; |
| 409 | } |
| 410 | *crypt = new_crypt; |
| 411 | } |
| 412 | |
| 413 | /* If a new key was provided, set it up */ |
| 414 | if (erq->length > 0) { |
| 415 | len = erq->length <= 5 ? 5 : 13; |
| 416 | memcpy(sec.keys[key], keybuf, erq->length); |
| 417 | if (len > erq->length) |
| 418 | memset(sec.keys[key] + erq->length, 0, |
| 419 | len - erq->length); |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 420 | LIBIPW_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n", |
John W. Linville | 9387b7c | 2008-09-30 20:59:05 -0400 | [diff] [blame] | 421 | key, print_ssid(ssid, sec.keys[key], len), |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 422 | erq->length, len); |
| 423 | sec.key_sizes[key] = len; |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 424 | if (*crypt) |
| 425 | (*crypt)->ops->set_key(sec.keys[key], len, NULL, |
| 426 | (*crypt)->priv); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 427 | sec.flags |= (1 << key); |
| 428 | /* This ensures a key will be activated if no key is |
Jean Delvare | c03983a | 2007-10-19 23:22:55 +0200 | [diff] [blame] | 429 | * explicitly set */ |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 430 | if (key == sec.active_key) |
| 431 | sec.flags |= SEC_ACTIVE_KEY; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 432 | |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 433 | } else { |
| 434 | if (host_crypto) { |
| 435 | len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, |
| 436 | NULL, (*crypt)->priv); |
| 437 | if (len == 0) { |
| 438 | /* Set a default key of all 0 */ |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 439 | LIBIPW_DEBUG_WX("Setting key %d to all " |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 440 | "zero.\n", key); |
| 441 | memset(sec.keys[key], 0, 13); |
| 442 | (*crypt)->ops->set_key(sec.keys[key], 13, NULL, |
| 443 | (*crypt)->priv); |
| 444 | sec.key_sizes[key] = 13; |
| 445 | sec.flags |= (1 << key); |
| 446 | } |
| 447 | } |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 448 | /* No key data - just set the default TX key index */ |
| 449 | if (key_provided) { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 450 | LIBIPW_DEBUG_WX("Setting key %d to default Tx " |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 451 | "key.\n", key); |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 452 | ieee->crypt_info.tx_keyidx = key; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 453 | sec.active_key = key; |
| 454 | sec.flags |= SEC_ACTIVE_KEY; |
| 455 | } |
| 456 | } |
James Ketrenos | 7dc888f | 2005-09-21 11:58:38 -0500 | [diff] [blame] | 457 | if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) { |
| 458 | ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); |
| 459 | sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : |
| 460 | WLAN_AUTH_SHARED_KEY; |
| 461 | sec.flags |= SEC_AUTH_MODE; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 462 | LIBIPW_DEBUG_WX("Auth: %s\n", |
James Ketrenos | 7dc888f | 2005-09-21 11:58:38 -0500 | [diff] [blame] | 463 | sec.auth_mode == WLAN_AUTH_OPEN ? |
| 464 | "OPEN" : "SHARED KEY"); |
| 465 | } |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 466 | |
| 467 | /* For now we just support WEP, so only set that security level... |
| 468 | * TODO: When WPA is added this is one place that needs to change */ |
| 469 | sec.flags |= SEC_LEVEL; |
Jeff Garzik | 0edd5b4 | 2005-09-07 00:48:31 -0400 | [diff] [blame] | 470 | sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 471 | sec.encode_alg[key] = SEC_ALG_WEP; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 472 | |
James Ketrenos | 259bf1f | 2005-09-21 11:54:22 -0500 | [diff] [blame] | 473 | done: |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 474 | if (ieee->set_security) |
| 475 | ieee->set_security(dev, &sec); |
| 476 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 477 | return 0; |
| 478 | } |
| 479 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 480 | int libipw_wx_get_encode(struct libipw_device *ieee, |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 481 | struct iw_request_info *info, |
| 482 | union iwreq_data *wrqu, char *keybuf) |
| 483 | { |
| 484 | struct iw_point *erq = &(wrqu->encoding); |
| 485 | int len, key; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 486 | struct lib80211_crypt_data *crypt; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 487 | struct libipw_security *sec = &ieee->sec; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 488 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 489 | LIBIPW_DEBUG_WX("GET_ENCODE\n"); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 490 | |
| 491 | key = erq->flags & IW_ENCODE_INDEX; |
| 492 | if (key) { |
| 493 | if (key > WEP_KEYS) |
| 494 | return -EINVAL; |
| 495 | key--; |
| 496 | } else |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 497 | key = ieee->crypt_info.tx_keyidx; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 498 | |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 499 | crypt = ieee->crypt_info.crypt[key]; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 500 | erq->flags = key + 1; |
| 501 | |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 502 | if (!sec->enabled) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 503 | erq->length = 0; |
| 504 | erq->flags |= IW_ENCODE_DISABLED; |
| 505 | return 0; |
| 506 | } |
| 507 | |
James Ketrenos | f1bf663 | 2005-09-21 11:53:54 -0500 | [diff] [blame] | 508 | len = sec->key_sizes[key]; |
| 509 | memcpy(keybuf, sec->keys[key], len); |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 510 | |
Adrian Bunk | 6274115 | 2006-04-27 02:33:42 -0700 | [diff] [blame] | 511 | erq->length = len; |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 512 | erq->flags |= IW_ENCODE_ENABLED; |
| 513 | |
| 514 | if (ieee->open_wep) |
| 515 | erq->flags |= IW_ENCODE_OPEN; |
| 516 | else |
| 517 | erq->flags |= IW_ENCODE_RESTRICTED; |
| 518 | |
| 519 | return 0; |
| 520 | } |
| 521 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 522 | int libipw_wx_set_encodeext(struct libipw_device *ieee, |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 523 | struct iw_request_info *info, |
| 524 | union iwreq_data *wrqu, char *extra) |
| 525 | { |
| 526 | struct net_device *dev = ieee->dev; |
| 527 | struct iw_point *encoding = &wrqu->encoding; |
| 528 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
| 529 | int i, idx, ret = 0; |
James Ketrenos | ccd0fda | 2005-09-21 11:58:32 -0500 | [diff] [blame] | 530 | int group_key = 0; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 531 | const char *alg, *module; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 532 | struct lib80211_crypto_ops *ops; |
| 533 | struct lib80211_crypt_data **crypt; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 534 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 535 | struct libipw_security sec = { |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 536 | .flags = 0, |
| 537 | }; |
| 538 | |
| 539 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 540 | if (idx) { |
| 541 | if (idx < 1 || idx > WEP_KEYS) |
| 542 | return -EINVAL; |
| 543 | idx--; |
| 544 | } else |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 545 | idx = ieee->crypt_info.tx_keyidx; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 546 | |
James Ketrenos | ccd0fda | 2005-09-21 11:58:32 -0500 | [diff] [blame] | 547 | if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 548 | crypt = &ieee->crypt_info.crypt[idx]; |
James Ketrenos | ccd0fda | 2005-09-21 11:58:32 -0500 | [diff] [blame] | 549 | group_key = 1; |
| 550 | } else { |
Volker Braun | e189277 | 2005-10-24 10:15:36 -0500 | [diff] [blame] | 551 | /* some Cisco APs use idx>0 for unicast in dynamic WEP */ |
| 552 | if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 553 | return -EINVAL; |
| 554 | if (ieee->iw_mode == IW_MODE_INFRA) |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 555 | crypt = &ieee->crypt_info.crypt[idx]; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 556 | else |
| 557 | return -EINVAL; |
| 558 | } |
| 559 | |
| 560 | sec.flags |= SEC_ENABLED | SEC_ENCRYPT; |
| 561 | if ((encoding->flags & IW_ENCODE_DISABLED) || |
| 562 | ext->alg == IW_ENCODE_ALG_NONE) { |
| 563 | if (*crypt) |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 564 | lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 565 | |
| 566 | for (i = 0; i < WEP_KEYS; i++) |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 567 | if (ieee->crypt_info.crypt[i] != NULL) |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 568 | break; |
| 569 | |
| 570 | if (i == WEP_KEYS) { |
| 571 | sec.enabled = 0; |
| 572 | sec.encrypt = 0; |
| 573 | sec.level = SEC_LEVEL_0; |
| 574 | sec.flags |= SEC_LEVEL; |
| 575 | } |
| 576 | goto done; |
| 577 | } |
| 578 | |
| 579 | sec.enabled = 1; |
| 580 | sec.encrypt = 1; |
| 581 | |
James Ketrenos | ccd0fda | 2005-09-21 11:58:32 -0500 | [diff] [blame] | 582 | if (group_key ? !ieee->host_mc_decrypt : |
| 583 | !(ieee->host_encrypt || ieee->host_decrypt || |
| 584 | ieee->host_encrypt_msdu)) |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 585 | goto skip_host_crypt; |
| 586 | |
| 587 | switch (ext->alg) { |
| 588 | case IW_ENCODE_ALG_WEP: |
| 589 | alg = "WEP"; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 590 | module = "lib80211_crypt_wep"; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 591 | break; |
| 592 | case IW_ENCODE_ALG_TKIP: |
| 593 | alg = "TKIP"; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 594 | module = "lib80211_crypt_tkip"; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 595 | break; |
| 596 | case IW_ENCODE_ALG_CCMP: |
| 597 | alg = "CCMP"; |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 598 | module = "lib80211_crypt_ccmp"; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 599 | break; |
| 600 | default: |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 601 | LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n", |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 602 | dev->name, ext->alg); |
| 603 | ret = -EINVAL; |
| 604 | goto done; |
| 605 | } |
| 606 | |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 607 | ops = lib80211_get_crypto_ops(alg); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 608 | if (ops == NULL) { |
| 609 | request_module(module); |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 610 | ops = lib80211_get_crypto_ops(alg); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 611 | } |
| 612 | if (ops == NULL) { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 613 | LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n", |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 614 | dev->name, ext->alg); |
| 615 | ret = -EINVAL; |
| 616 | goto done; |
| 617 | } |
| 618 | |
| 619 | if (*crypt == NULL || (*crypt)->ops != ops) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 620 | struct lib80211_crypt_data *new_crypt; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 621 | |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 622 | lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 623 | |
Panagiotis Issaris | 0da974f | 2006-07-21 14:51:30 -0700 | [diff] [blame] | 624 | new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 625 | if (new_crypt == NULL) { |
| 626 | ret = -ENOMEM; |
| 627 | goto done; |
| 628 | } |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 629 | new_crypt->ops = ops; |
| 630 | if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) |
James Ketrenos | 6eb6edf | 2005-09-22 10:34:15 +0000 | [diff] [blame] | 631 | new_crypt->priv = new_crypt->ops->init(idx); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 632 | if (new_crypt->priv == NULL) { |
| 633 | kfree(new_crypt); |
| 634 | ret = -EINVAL; |
| 635 | goto done; |
| 636 | } |
| 637 | *crypt = new_crypt; |
| 638 | } |
| 639 | |
| 640 | if (ext->key_len > 0 && (*crypt)->ops->set_key && |
| 641 | (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, |
| 642 | (*crypt)->priv) < 0) { |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 643 | LIBIPW_DEBUG_WX("%s: key setting failed\n", dev->name); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 644 | ret = -EINVAL; |
| 645 | goto done; |
| 646 | } |
| 647 | |
| 648 | skip_host_crypt: |
| 649 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 650 | ieee->crypt_info.tx_keyidx = idx; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 651 | sec.active_key = idx; |
| 652 | sec.flags |= SEC_ACTIVE_KEY; |
| 653 | } |
| 654 | |
| 655 | if (ext->alg != IW_ENCODE_ALG_NONE) { |
| 656 | memcpy(sec.keys[idx], ext->key, ext->key_len); |
| 657 | sec.key_sizes[idx] = ext->key_len; |
| 658 | sec.flags |= (1 << idx); |
| 659 | if (ext->alg == IW_ENCODE_ALG_WEP) { |
| 660 | sec.encode_alg[idx] = SEC_ALG_WEP; |
| 661 | sec.flags |= SEC_LEVEL; |
| 662 | sec.level = SEC_LEVEL_1; |
| 663 | } else if (ext->alg == IW_ENCODE_ALG_TKIP) { |
| 664 | sec.encode_alg[idx] = SEC_ALG_TKIP; |
| 665 | sec.flags |= SEC_LEVEL; |
| 666 | sec.level = SEC_LEVEL_2; |
| 667 | } else if (ext->alg == IW_ENCODE_ALG_CCMP) { |
| 668 | sec.encode_alg[idx] = SEC_ALG_CCMP; |
| 669 | sec.flags |= SEC_LEVEL; |
| 670 | sec.level = SEC_LEVEL_3; |
| 671 | } |
James Ketrenos | ccd0fda | 2005-09-21 11:58:32 -0500 | [diff] [blame] | 672 | /* Don't set sec level for group keys. */ |
| 673 | if (group_key) |
| 674 | sec.flags &= ~SEC_LEVEL; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 675 | } |
| 676 | done: |
| 677 | if (ieee->set_security) |
Paul Bolle | 3fc7bc8 | 2012-09-21 12:02:02 +0200 | [diff] [blame] | 678 | ieee->set_security(dev, &sec); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 679 | |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 680 | return ret; |
| 681 | } |
| 682 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 683 | int libipw_wx_get_encodeext(struct libipw_device *ieee, |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 684 | struct iw_request_info *info, |
| 685 | union iwreq_data *wrqu, char *extra) |
| 686 | { |
| 687 | struct iw_point *encoding = &wrqu->encoding; |
| 688 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 689 | struct libipw_security *sec = &ieee->sec; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 690 | int idx, max_key_len; |
| 691 | |
| 692 | max_key_len = encoding->length - sizeof(*ext); |
| 693 | if (max_key_len < 0) |
| 694 | return -EINVAL; |
| 695 | |
| 696 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 697 | if (idx) { |
| 698 | if (idx < 1 || idx > WEP_KEYS) |
| 699 | return -EINVAL; |
| 700 | idx--; |
| 701 | } else |
John W. Linville | 274bfb8 | 2008-10-29 11:35:05 -0400 | [diff] [blame] | 702 | idx = ieee->crypt_info.tx_keyidx; |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 703 | |
Roel Kluin | f59d978 | 2007-10-26 21:51:26 +0200 | [diff] [blame] | 704 | if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) && |
Volker Braun | e189277 | 2005-10-24 10:15:36 -0500 | [diff] [blame] | 705 | ext->alg != IW_ENCODE_ALG_WEP) |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 706 | if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA) |
| 707 | return -EINVAL; |
| 708 | |
| 709 | encoding->flags = idx + 1; |
| 710 | memset(ext, 0, sizeof(*ext)); |
| 711 | |
| 712 | if (!sec->enabled) { |
| 713 | ext->alg = IW_ENCODE_ALG_NONE; |
| 714 | ext->key_len = 0; |
| 715 | encoding->flags |= IW_ENCODE_DISABLED; |
| 716 | } else { |
| 717 | if (sec->encode_alg[idx] == SEC_ALG_WEP) |
| 718 | ext->alg = IW_ENCODE_ALG_WEP; |
| 719 | else if (sec->encode_alg[idx] == SEC_ALG_TKIP) |
| 720 | ext->alg = IW_ENCODE_ALG_TKIP; |
| 721 | else if (sec->encode_alg[idx] == SEC_ALG_CCMP) |
| 722 | ext->alg = IW_ENCODE_ALG_CCMP; |
| 723 | else |
| 724 | return -EINVAL; |
| 725 | |
| 726 | ext->key_len = sec->key_sizes[idx]; |
| 727 | memcpy(ext->key, sec->keys[idx], ext->key_len); |
| 728 | encoding->flags |= IW_ENCODE_ENABLED; |
| 729 | if (ext->key_len && |
| 730 | (ext->alg == IW_ENCODE_ALG_TKIP || |
| 731 | ext->alg == IW_ENCODE_ALG_CCMP)) |
| 732 | ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID; |
| 733 | |
| 734 | } |
| 735 | |
| 736 | return 0; |
| 737 | } |
| 738 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 739 | EXPORT_SYMBOL(libipw_wx_set_encodeext); |
| 740 | EXPORT_SYMBOL(libipw_wx_get_encodeext); |
James Ketrenos | e0d369d | 2005-09-21 11:54:30 -0500 | [diff] [blame] | 741 | |
John W. Linville | b0a4e7d | 2009-08-20 14:48:03 -0400 | [diff] [blame] | 742 | EXPORT_SYMBOL(libipw_wx_get_scan); |
| 743 | EXPORT_SYMBOL(libipw_wx_set_encode); |
| 744 | EXPORT_SYMBOL(libipw_wx_get_encode); |