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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/staging/rtl8712/ieee80211.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/staging/rtl8712/ieee80211.c')
-rw-r--r-- | kernel/drivers/staging/rtl8712/ieee80211.c | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/kernel/drivers/staging/rtl8712/ieee80211.c b/kernel/drivers/staging/rtl8712/ieee80211.c new file mode 100644 index 000000000..57868085c --- /dev/null +++ b/kernel/drivers/staging/rtl8712/ieee80211.c @@ -0,0 +1,418 @@ +/****************************************************************************** + * ieee80211.c + * + * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. + * Linux device driver for RTL8192SU + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * Modifications for inclusion into the Linux staging tree are + * Copyright(c) 2010 Larry Finger. All rights reserved. + * + * Contact information: + * WLAN FAE <wlanfae@realtek.com>. + * Larry Finger <Larry.Finger@lwfinger.net> + * + ******************************************************************************/ + +#define _IEEE80211_C + +#include "drv_types.h" +#include "ieee80211.h" +#include "wifi.h" +#include "osdep_service.h" +#include "wlan_bssdef.h" + +static const u8 WPA_OUI_TYPE[] = {0x00, 0x50, 0xf2, 1}; +static const u8 WPA_CIPHER_SUITE_NONE[] = {0x00, 0x50, 0xf2, 0}; +static const u8 WPA_CIPHER_SUITE_WEP40[] = {0x00, 0x50, 0xf2, 1}; +static const u8 WPA_CIPHER_SUITE_TKIP[] = {0x00, 0x50, 0xf2, 2}; +static const u8 WPA_CIPHER_SUITE_CCMP[] = {0x00, 0x50, 0xf2, 4}; +static const u8 WPA_CIPHER_SUITE_WEP104[] = {0x00, 0x50, 0xf2, 5}; + +static const u8 RSN_CIPHER_SUITE_NONE[] = {0x00, 0x0f, 0xac, 0}; +static const u8 RSN_CIPHER_SUITE_WEP40[] = {0x00, 0x0f, 0xac, 1}; +static const u8 RSN_CIPHER_SUITE_TKIP[] = {0x00, 0x0f, 0xac, 2}; +static const u8 RSN_CIPHER_SUITE_CCMP[] = {0x00, 0x0f, 0xac, 4}; +static const u8 RSN_CIPHER_SUITE_WEP104[] = {0x00, 0x0f, 0xac, 5}; + +/*----------------------------------------------------------- + * for adhoc-master to generate ie and provide supported-rate to fw + *----------------------------------------------------------- + */ + +static u8 WIFI_CCKRATES[] = { + (IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK), + (IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK), + (IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK), + (IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK) +}; + +static u8 WIFI_OFDMRATES[] = { + (IEEE80211_OFDM_RATE_6MB), + (IEEE80211_OFDM_RATE_9MB), + (IEEE80211_OFDM_RATE_12MB), + (IEEE80211_OFDM_RATE_18MB), + (IEEE80211_OFDM_RATE_24MB), + (IEEE80211_OFDM_RATE_36MB), + (IEEE80211_OFDM_RATE_48MB), + (IEEE80211_OFDM_RATE_54MB) +}; + +uint r8712_is_cckrates_included(u8 *rate) +{ + u32 i = 0; + + while (rate[i] != 0) { + if ((((rate[i]) & 0x7f) == 2) || (((rate[i]) & 0x7f) == 4) || + (((rate[i]) & 0x7f) == 11) || (((rate[i]) & 0x7f) == 22)) + return true; + i++; + } + return false; +} + +uint r8712_is_cckratesonly_included(u8 *rate) +{ + u32 i = 0; + + while (rate[i] != 0) { + if ((((rate[i]) & 0x7f) != 2) && (((rate[i]) & 0x7f) != 4) && + (((rate[i]) & 0x7f) != 11) && (((rate[i]) & 0x7f) != 22)) + return false; + i++; + } + return true; +} + +/* r8712_set_ie will update frame length */ +u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen) +{ + *pbuf = (u8)index; + *(pbuf + 1) = (u8)len; + if (len > 0) + memcpy((void *)(pbuf + 2), (void *)source, len); + *frlen = *frlen + (len + 2); + return pbuf + len + 2; +} + +/*---------------------------------------------------------------------------- +index: the information element id index, limit is the limit for search +-----------------------------------------------------------------------------*/ +u8 *r8712_get_ie(u8 *pbuf, sint index, sint *len, sint limit) +{ + sint tmp, i; + u8 *p; + + if (limit < 1) + return NULL; + p = pbuf; + i = 0; + *len = 0; + while (1) { + if (*p == index) { + *len = *(p + 1); + return p; + } + tmp = *(p + 1); + p += (tmp + 2); + i += (tmp + 2); + if (i >= limit) + break; + } + return NULL; +} + +static void set_supported_rate(u8 *SupportedRates, uint mode) +{ + memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX); + switch (mode) { + case WIRELESS_11B: + memcpy(SupportedRates, WIFI_CCKRATES, + IEEE80211_CCK_RATE_LEN); + break; + case WIRELESS_11G: + case WIRELESS_11A: + memcpy(SupportedRates, WIFI_OFDMRATES, + IEEE80211_NUM_OFDM_RATESLEN); + break; + case WIRELESS_11BG: + memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN); + memcpy(SupportedRates + IEEE80211_CCK_RATE_LEN, WIFI_OFDMRATES, + IEEE80211_NUM_OFDM_RATESLEN); + break; + } +} + +static uint r8712_get_rateset_len(u8 *rateset) +{ + uint i = 0; + + while (1) { + if ((rateset[i]) == 0) + break; + if (i > 12) + break; + i++; + } + return i; +} + +int r8712_generate_ie(struct registry_priv *pregistrypriv) +{ + int sz = 0, rateLen; + struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network; + u8 *ie = pdev_network->IEs; + + /*timestamp will be inserted by hardware*/ + sz += 8; + ie += sz; + /*beacon interval : 2bytes*/ + *(u16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod); + sz += 2; + ie += 2; + /*capability info*/ + *(u16 *)ie = 0; + *(u16 *)ie |= cpu_to_le16(cap_IBSS); + if (pregistrypriv->preamble == PREAMBLE_SHORT) + *(u16 *)ie |= cpu_to_le16(cap_ShortPremble); + if (pdev_network->Privacy) + *(u16 *)ie |= cpu_to_le16(cap_Privacy); + sz += 2; + ie += 2; + /*SSID*/ + ie = r8712_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, + pdev_network->Ssid.Ssid, &sz); + /*supported rates*/ + set_supported_rate(pdev_network->SupportedRates, + pregistrypriv->wireless_mode); + rateLen = r8712_get_rateset_len(pdev_network->SupportedRates); + if (rateLen > 8) { + ie = r8712_set_ie(ie, _SUPPORTEDRATES_IE_, 8, + pdev_network->SupportedRates, &sz); + ie = r8712_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), + (pdev_network->SupportedRates + 8), &sz); + } else + ie = r8712_set_ie(ie, _SUPPORTEDRATES_IE_, + rateLen, pdev_network->SupportedRates, &sz); + /*DS parameter set*/ + ie = r8712_set_ie(ie, _DSSET_IE_, 1, + (u8 *)&(pdev_network->Configuration.DSConfig), &sz); + /*IBSS Parameter Set*/ + ie = r8712_set_ie(ie, _IBSS_PARA_IE_, 2, + (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz); + return sz; +} + +unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit) +{ + int len; + u16 val16; + unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01}; + u8 *pbuf = pie; + + while (1) { + pbuf = r8712_get_ie(pbuf, _WPA_IE_ID_, &len, limit); + if (pbuf) { + /*check if oui matches...*/ + if (memcmp((pbuf + 2), wpa_oui_type, + sizeof(wpa_oui_type))) + goto check_next_ie; + /*check version...*/ + memcpy((u8 *)&val16, (pbuf + 6), sizeof(val16)); + val16 = le16_to_cpu(val16); + if (val16 != 0x0001) + goto check_next_ie; + *wpa_ie_len = *(pbuf + 1); + return pbuf; + } + *wpa_ie_len = 0; + return NULL; +check_next_ie: + limit = limit - (pbuf - pie) - 2 - len; + if (limit <= 0) + break; + pbuf += (2 + len); + } + *wpa_ie_len = 0; + return NULL; +} + +unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit) +{ + return r8712_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit); +} + +static int r8712_get_wpa_cipher_suite(u8 *s) +{ + if (!memcmp(s, (void *)WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN)) + return WPA_CIPHER_NONE; + if (!memcmp(s, (void *)WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN)) + return WPA_CIPHER_WEP40; + if (!memcmp(s, (void *)WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN)) + return WPA_CIPHER_TKIP; + if (!memcmp(s, (void *)WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN)) + return WPA_CIPHER_CCMP; + if (!memcmp(s, (void *)WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN)) + return WPA_CIPHER_WEP104; + return 0; +} + +static int r8712_get_wpa2_cipher_suite(u8 *s) +{ + if (!memcmp(s, (void *)RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN)) + return WPA_CIPHER_NONE; + if (!memcmp(s, (void *)RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN)) + return WPA_CIPHER_WEP40; + if (!memcmp(s, (void *)RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN)) + return WPA_CIPHER_TKIP; + if (!memcmp(s, (void *)RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN)) + return WPA_CIPHER_CCMP; + if (!memcmp(s, (void *)RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN)) + return WPA_CIPHER_WEP104; + return 0; +} + +int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, + int *pairwise_cipher) +{ + int i; + int left, count; + u8 *pos; + + if (wpa_ie_len <= 0) { + /* No WPA IE - fail silently */ + return _FAIL; + } + if ((*wpa_ie != _WPA_IE_ID_) || (*(wpa_ie + 1) != (u8)(wpa_ie_len - 2)) + || (memcmp(wpa_ie + 2, (void *)WPA_OUI_TYPE, WPA_SELECTOR_LEN))) + return _FAIL; + pos = wpa_ie; + pos += 8; + left = wpa_ie_len - 8; + /*group_cipher*/ + if (left >= WPA_SELECTOR_LEN) { + *group_cipher = r8712_get_wpa_cipher_suite(pos); + pos += WPA_SELECTOR_LEN; + left -= WPA_SELECTOR_LEN; + } else if (left > 0) + return _FAIL; + /*pairwise_cipher*/ + if (left >= 2) { + count = le16_to_cpu(*(u16 *)pos); + pos += 2; + left -= 2; + if (count == 0 || left < count * WPA_SELECTOR_LEN) + return _FAIL; + for (i = 0; i < count; i++) { + *pairwise_cipher |= r8712_get_wpa_cipher_suite(pos); + pos += WPA_SELECTOR_LEN; + left -= WPA_SELECTOR_LEN; + } + } else if (left == 1) + return _FAIL; + return _SUCCESS; +} + +int r8712_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher, + int *pairwise_cipher) +{ + int i; + int left, count; + u8 *pos; + + if (rsn_ie_len <= 0) { + /* No RSN IE - fail silently */ + return _FAIL; + } + if ((*rsn_ie != _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2))) + return _FAIL; + pos = rsn_ie; + pos += 4; + left = rsn_ie_len - 4; + /*group_cipher*/ + if (left >= RSN_SELECTOR_LEN) { + *group_cipher = r8712_get_wpa2_cipher_suite(pos); + pos += RSN_SELECTOR_LEN; + left -= RSN_SELECTOR_LEN; + } else if (left > 0) + return _FAIL; + /*pairwise_cipher*/ + if (left >= 2) { + count = le16_to_cpu(*(u16 *)pos); + pos += 2; + left -= 2; + if (count == 0 || left < count * RSN_SELECTOR_LEN) + return _FAIL; + for (i = 0; i < count; i++) { + *pairwise_cipher |= r8712_get_wpa2_cipher_suite(pos); + pos += RSN_SELECTOR_LEN; + left -= RSN_SELECTOR_LEN; + } + } else if (left == 1) + return _FAIL; + return _SUCCESS; +} + +int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, + u8 *wpa_ie, u16 *wpa_len) +{ + u8 authmode; + u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01}; + uint cnt; + + /*Search required WPA or WPA2 IE and copy to sec_ie[ ]*/ + cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_); + while (cnt < in_len) { + authmode = in_ie[cnt]; + if ((authmode == _WPA_IE_ID_) && + (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) { + memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); + *wpa_len = in_ie[cnt+1]+2; + cnt += in_ie[cnt + 1] + 2; /*get next */ + } else { + if (authmode == _WPA2_IE_ID_) { + memcpy(rsn_ie, &in_ie[cnt], + in_ie[cnt + 1] + 2); + *rsn_len = in_ie[cnt+1] + 2; + cnt += in_ie[cnt+1] + 2; /*get next*/ + } else + cnt += in_ie[cnt+1] + 2; /*get next*/ + } + } + return *rsn_len + *wpa_len; +} + +int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen) +{ + int match; + uint cnt; + u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; + + cnt = 12; + match = false; + while (cnt < in_len) { + eid = in_ie[cnt]; + if ((eid == _WPA_IE_ID_) && + (!memcmp(&in_ie[cnt+2], wps_oui, 4))) { + memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2); + *wps_ielen = in_ie[cnt+1]+2; + cnt += in_ie[cnt+1]+2; + match = true; + break; + } + cnt += in_ie[cnt+1]+2; /* goto next */ + } + return match; +} |